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Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Electric vehicle regenerative antiskid braking and traction control system  

DOE Patents [OSTI]

An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydrualic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control.

Cikanek, Susan R. (Wixom, MI)

1995-01-01T23:59:59.000Z

2

Wide speed range for traction motor in braking force of electric braking control system  

Science Journals Connector (OSTI)

A vehicle stopping method using an electric brake until a traction motor is stopped is studied. At the moment of vehicle stop, electric brake is changed to control mode where ... is controlled by estimating the l...

Young-Choon Kim; Moon-Taek Cho

2014-10-01T23:59:59.000Z

3

Electric Braking Control System to Secure Braking Force in the Wide Speed Range of Traction Motor  

Science Journals Connector (OSTI)

In this paper, a vehicle stopping method using an electric brake until a traction motor is stopped is studied. At the moment of vehicle stop, electric brake is changed to control mode wherein ... is controlled by...

Young-Choon Kim; Moon-Taek Cho; Ok-Hwan Kim

2014-01-01T23:59:59.000Z

4

Fuzzy logic electric vehicle regenerative antiskid braking and traction control system  

DOE Patents [OSTI]

An regenerative antiskid braking and traction control system using fuzzy logic for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensor and determining if regenerative antiskid braking control, requiring hydraulic braking control, and requiring traction control are required. The processor then employs fuzzy logic based on the determined vehicle state and provides command signals to a motor controller to control operation of the electric traction motor and to the brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative braking control, hydraulic braking control, and traction control.

Cikanek, Susan R. (Wixom, MI)

1994-01-01T23:59:59.000Z

5

Adaptive controller for regenerative and friction braking system  

DOE Patents [OSTI]

A regenerative and friction braking system for a vehicle having one or more roadwheels driven by an electric traction motor includes a driver responsive device for producing a brake demand signal having a magnitude corresponding to the level of braking force selected by the driver and friction and regenerative brakes operatively connected with the roadwheels of the vehicle. A system according to this invention further includes control means for operating the friction and regenerative braking subsystems so that maximum brake torques sustainable by the roadwheels of the vehicle without skidding or slipping will not be exceeded.

Davis, Roy I. (Ypsilanti, MI)

1990-01-01T23:59:59.000Z

6

Vehicle System Dynamics, Vol. 26, No.4, October 1996, pp.301-320. Traction/Braking Force Distribution for Optimal Longitudinal  

E-Print Network [OSTI]

as the desired level of vehicle yaw motion, and the control system was designed to follow the yaw motion commandVehicle System Dynamics, Vol. 26, No.4, October 1996, pp.301-320. Traction/Braking Force in the past twenty years through the use of electronic devices. Four-wheel-steering (4WS) systems have been

Peng, Huei

7

Disturbance Control of the Hydraulic Brake in a Wind Turbine  

E-Print Network [OSTI]

Disturbance Control of the Hydraulic Brake in a Wind Turbine Frank Jepsen, Anders Søborg brake in a wind turbine. Brake torque is determined by friction coefficient and clamp force; the latter brake is one1 of the two independent brake systems in a wind turbine. As a consequence of the gearing

Yang, Zhenyu

8

A pressure control scheme for air brakes in commercial vehicles  

E-Print Network [OSTI]

This research is focused on developing a control scheme for regulating the pressure in the brake chamber of an air brake system found in most commercial vehicles like trucks, tractor-trailers and buses. Such a control scheme can be used...

Bowlin, Christopher Leland

2007-04-25T23:59:59.000Z

9

Development of traction control for front-wheel drive in-wheel motor electric vehicles  

Science Journals Connector (OSTI)

This paper proposes a novel traction control for a front-wheel drive in-wheel motor electric vehicle. The presented vehicle has advantages on high fuel efficiency and cost effectiveness. In order to achieve specific control performance, this study employed a high speed microcontroller as the vehicle's electronic control unit. The anti-skid function based on a reliable traction control kernel is embedded in the system, which can guarantee the steering safety in a slippery and dangerous situation. This study verifies that the traction control based on maximum torque regulation cannot only constrain the slip to improve the longitudinal friction force and lateral friction force, but also provide some information on tyre-road conditions, which can ensure the performance and the effectiveness of two-dimensional motion control. The numerical simulation and demonstration video reveal its effectiveness and feasibility.

Jia-Sheng Hu; Ying-Ruei Huang; Feng-Rung Hu

2012-01-01T23:59:59.000Z

10

Integrated vehicle dynamics control via coordination of active front steering and rear braking  

E-Print Network [OSTI]

front steering and rear braking in a driver- assist system for vehicle yaw control. The proposed control system aims at stabilizing the vehicle while achieving a desired yaw rate. During normal driving braking could be used for yaw rate control. An active suspension system, by controlling the wheel load

Paris-Sud XI, Université de

11

Vehicle yaw control via coordinated use of steering/braking systems  

E-Print Network [OSTI]

Vehicle yaw control via coordinated use of steering/braking systems M. Doumiati, O. Sename, J. Martinez, L. Dugard P. Gaspar, Z. Szabo, J. Bokor Gipsa-Lab UMR CNRS 5216, Control Systems Department with steer- ing/braking coordination task for vehicle yaw control. For steerability enhancement, only active

Paris-Sud XI, Université de

12

SDTC Neural Network Traction Control of an Electric Vehicle without Differential Gears  

E-Print Network [OSTI]

, using two electric in-wheel motors give the possibility to have a torque and speed control in each wheel on the 2?4 electrical vehicles, with independent driving in-wheel motor at the front and with classicalSDTC Neural Network Traction Control of an Electric Vehicle without Differential Gears A. Haddoun1

Paris-Sud XI, Université de

13

A Library of SIMULINK Blocks for Real-Time Control of HEV Traction John Chiasson1  

E-Print Network [OSTI]

algorithms for the various types of motor drives considered for hybrid electric vehicles (HEVs algorithms for the various types of motor drives considered for hybrid electric vehicles (HEVs02FCC-30 A Library of SIMULINK Blocks for Real-Time Control of HEV Traction Drives John Chiasson1

Tolbert, Leon M.

14

Measurement and control of brake pedal feel quality in automobile manufacturing  

E-Print Network [OSTI]

Customer perception of brake pedal feel quality, as related to the perception of the brake pedal feeling soft or mushy, depends on both the customer's subjective judgment of quality and the actual build quality of the brake ...

Cerilles, Jeffrey T. (Jeffrey Thomas)

2005-01-01T23:59:59.000Z

15

Novel estimation of tyre-road friction coefficient and slip ratio using electrical parameters of traction motor for electric vehicles  

Science Journals Connector (OSTI)

The estimation of the friction coefficient and the slip ratio is crucial for advanced traction control or anti-brake control of electric vehicles. In this paper, dynamic behaviours of electrical parameters of the traction motor under road change are modelled and analysed. Novel estimation only using the measurements of the armature voltage and the current is proposed. The proposed method is much quicker than traditional methods, contributing to adjust the vehicle's motion state more quickly and precisely. Further, it can eliminate the speed measuring devices of the wheel speed and the vehicle speed. Simulations verify the effectiveness.

Guoqing Xu; Kun Xu; Weimin Li

2013-01-01T23:59:59.000Z

16

Fault tolerant control of automatically controlled vehicles in response to brake system failures  

E-Print Network [OSTI]

in the brake system is vital. In this thesis, nonlinear failure detection filters are used for fault detection of sensors and actuators in a class of nonlinear systems. In this thesis, the effects of brake system failures in an AHS where the vehicle steering...

Hsien, Li-Wei

2012-06-07T23:59:59.000Z

17

CityCarControl : an electric vehicle drive-by-wire solution for distributed steering, braking and throttle control  

E-Print Network [OSTI]

In this paper, we propose CityCarControl, a system to manage the steering, braking, and throttle of a new class of intra-city electric vehicles. These vehicles have a focus on extreme light-weight and a small parking ...

Brown, Thomas B., M. Eng. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

18

Fault-tolerant control design for trajectory tracking in driver assistance systems  

E-Print Network [OSTI]

-wheel-distributed traction/braking sys- tems was proposed by Ono et al. (2006). A yaw stability control system in whichFault-tolerant control design for trajectory tracking in driver assistance systems Bal´azs N.sename;luc.dugard}@gipsa-lab.grenoble-inp.fr Abstract: The paper proposes a control system with the brake and the steering for developing a driver

Paris-Sud XI, Université de

19

LATERAL VEHICLE STABILIZATION USING CONSTRAINED NONLINEAR CONTROL  

E-Print Network [OSTI]

problems of designing a controller for the yaw dynamics are the nonlinearities which appear in the system, nonlinear systems, constraints. Abstract A lateral stabilization system for automotive vehicles is de of the vehicle during braking maneuvers. These systems were followed by traction control systems, which im- prove

Johansen, Tor Arne

20

Fuzzy Logic Traction Controllers And Their Effect On Longitudinal Vehicle Platoon Systems  

E-Print Network [OSTI]

the plant. Figure 27 depicts the fuzzy logic control system.Figure 27: Fuzzy Logic Control System Fuzzification: Duringcontrol makes a fuzzy-logic control approach appealing (

Bauer, M.; Tomizuka, M.

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

1 1 Regenerative braking converts otherwise wasted energy from braking into electricity and stores it in the battery. In regenerative braking, the electric motor is reversed so that, instead of using electricity to turn the wheels, the rotating wheels turn the motor and create electricity. Using energy from the wheels to turn the motor slows the vehicle down. Go to next… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the electric motor to the battery. Main stage: See through car with battery, engine, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the electric motor to the battery.

22

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

2 2 If additional stopping power is needed, conventional friction brakes (e.g., disc brakes) are also applied automatically. Go back… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

23

Omnidirectional locomotion and traction control of the wheel-driven, wall-climbing robot, cromsci  

Science Journals Connector (OSTI)

Safe and cost-efficient inspection of large concrete buildings is a great challenge for mobile robots. This paper presents the locomotion system of the climbing robot, Cromsci, which uses three steerable standard wheels and negative pressure ... Keywords: Control of robotic systems, Force control, Mobile robots, Novel applications of robotics, Service robots

D. Schmidt; C. Hillenbrand; K. Berns

2011-12-01T23:59:59.000Z

24

Traction Drive Systems Breakout  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Traction Drive Systems Breakout Traction Drive Systems Breakout John M. Miller, PhD, PE, F.IEEE, F.SAE Oak Ridge National Laboratory Facilitator July 24, 2012 EV Everywhere Grand Challenge Vehicle Technologies Program - Advanced Power Electronics and Electric Motors eere.energy.gov EV Everywhere Traction Drive System * DOE goals for Electric Traction Drive System (TDS) innovations must be disruptive innovation focused to meet the CY2022 price target ($20,000 $25,000) for a mid-sized 5 passenger sedan having 5 year simple payback. Enhanced Efficiency Reduced Cost Traction Drive System EETT Roadmap: "Therefore, research is needed to develop technologies that are less expensive and, at the same time, smaller, lighter, more efficient, and equally reliable as conventional automotive technologies. "

25

Hybrid: Braking  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Button Stopped button highlighted subbanner graphic: gray bar Button Stopped button highlighted subbanner graphic: gray bar STOPPED When the vehicle is stopped, such as at a red light, the gasoline engine and electric motor shut off automatically so that energy is not wasted in idling. The battery continues to power auxillary systems, such as the air conditioning and dashboard displays. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

26

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Button Stopped button highlighted subbanner graphic: gray bar Button Stopped button highlighted subbanner graphic: gray bar STOPPED When the vehicle is stopped, such as at a red light, the gasoline engine and electric motor shut off automatically so that energy is not wasted in idling. The battery continues to power auxillary systems, such as the air conditioning and dashboard displays. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

27

Traction Drive Systems Breakout Group  

Broader source: Energy.gov (indexed) [DOE]

overlook profit motive in value chain * 4 - Today's HEV systems drive EV traction drive systems because of manufacturing base Barriers Interfering with Reaching the Targets * 1 -...

28

Full Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Braking button highlighted Stopped button Braking button highlighted Stopped button BRAKING PART 1 Regenerative braking converts otherwise wasted energy from braking into electricity and stores it in the battery. In regenerative braking, the electric motor is reversed so that, instead of using electricity to turn the wheels, the rotating wheels turn the motor and create electricity. Using energy from the wheels to turn the motor slows the vehicle down. Go to next… stage graphic: vertical blue rule Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the power split device to the electric motor to the battery. Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the power split device to the electric motor to the battery.

29

Svendborg Brakes | Open Energy Information  

Open Energy Info (EERE)

Name: Svendborg Brakes Place: Denmark Sector: Wind energy Product: Denmark-based manufacturer of braking systems for the wind industry, as well as for the oil sector....

30

WIND BRAKING OF MAGNETARS  

SciTech Connect (OSTI)

We explore the wind braking of magnetars considering recent observations challenging the traditional magnetar model. There is evidence for strong multipole magnetic fields in active magnetars, but the dipole field inferred from spin-down measurements may be strongly biased by particle wind. Recent observations challenging the traditional model of magnetars may be explained naturally by the wind braking scenario: (1) the supernova energies of magnetars are of normal value; (2) the non-detection in Fermi observations of magnetars; (3) the problem posed by low magnetic field soft gamma-ray repeaters; (4) the relation between magnetars and high magnetic field pulsars; and (5) a decreasing period derivative during magnetar outbursts. Transient magnetars with L{sub x}<- E-dot{sub rot} may still be magnetic dipole braking. This may explain why low luminosity magnetars are more likely to have radio emissions. A strong reduction of the dipole magnetic field is possible only when the particle wind is very collimated at the star surface. A small reduction of the dipole magnetic field may result from detailed considerations of magnetar wind luminosity. In the wind braking scenario, magnetars are neutron stars with a strong multipole field. For some sources, a strong dipole field may no longer be needed. A magnetism-powered pulsar wind nebula will be one of the consequences of wind braking. For a magnetism-powered pulsar wind nebula, we should see a correlation between the nebula luminosity and the magnetar luminosity. Under the wind braking scenario, a braking index smaller than three is expected. Future braking index measurement of a magnetar may tell us whether magnetars are wind braking or magnetic dipole braking.

Tong, H. [Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011 (China); Xu, R. X.; Qiao, G. J. [KIAA and School of Physics, Peking University, Beijing 100871 (China); Song, L. M., E-mail: tonghao@xao.ac.cn [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)

2013-05-10T23:59:59.000Z

31

A Multiphase Traction/Fast-Battery-Charger Drive for Electric or Plug-in Hybrid Vehicles  

E-Print Network [OSTI]

A Multiphase Traction/Fast-Battery-Charger Drive for Electric or Plug-in Hybrid Vehicles Solutions on an original electric drive [1]-[3] dedicated to the vehicle traction and configurable as a battery charger concerning the electrical machine control. This paper deals with the control of this drive [1], focusing

Paris-Sud XI, Université de

32

Chapter 9 - Brake Testing  

Science Journals Connector (OSTI)

Abstract This chapter describes and explains the role and methods of experimental testing in the design and verification of brakes and their components. It starts by discussing the increasing capability of computer-based predictive techniques, which can simulate many aspects of brake operation and save time and cost compared with previous methods of experimental evaluation. Preparation, procedures, instrumentation, data acquisition and results analysis, interpretation and reporting for experimental testing ranging from whole vehicle braking performance on a test track to component performance and material thermophysical properties in the laboratory, are explained and discussed. By the end of the chapter the design and operation of test rigs including inertia dynamometers for full-size brakes, scale rigs for small-sample friction and wear measurement, machines for cyclic loading and material property measurement, etc. are described. The importance of careful preparation of the friction pair (bedding-in and burnishing) for brake performance testing and the evaluation of variability by repeat testing is emphasised.

Andrew Day

2014-01-01T23:59:59.000Z

33

Advanced Integrated Electric Traction System | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. ape09smith.pdf More Documents & Publications Advanced Integrated Electric Traction System...

34

Advanced Integrated Electric Traction System | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ape014smith2011o.pdf More Documents & Publications Advanced Integrated Electric Traction System...

35

E-Print Network 3.0 - automatic braking Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for an Urban Electric Vehicle Summary: , Automatic Braking, Electric Vehicles, Personal Rapid Transit, Public Transit, Advanced Vehicle Control... the design modification,...

36

Utilizing the Traction Drive Power Electronics System to Provide...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability...

37

High-Temperature, Air-Cooled Traction Drive Inverter Packaging...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Temperature, Air-Cooled Traction Drive Inverter Packaging High-Temperature, Air-Cooled Traction Drive Inverter Packaging 2010 DOE Vehicle Technologies and Hydrogen Programs Annual...

38

Advanced Integrated Electric Traction System | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. ape014smith2010o.pdf More Documents & Publications Advanced Integrated Electric Traction System...

39

Modeling of air brakes for onboard diagnostics of heavy trucks  

E-Print Network [OSTI]

declared out of service. Worn brake pads and tires, air leaks at hoses, connections, valves and brake chambers of the airbrake system along with the significant time delay in the actuation of tractor and trailer brakes degrade the vehicle braking...

Kankanala, Penchala N

2012-06-07T23:59:59.000Z

40

A Five-Leg Inverter for Driving a Traction Motor and a Compressor Motor  

SciTech Connect (OSTI)

This paper presents an integrated inverter for speed control of a traction motor and a compressor motor to reduce the compressor drive cost in EV/HEV applications. The inverter comprises five phase-legs; three of which are for control of a three-phase traction motor and the remaining two for a two-phase compressor motor with three terminals. The common terminal of the two-phase motor is tied to the neutral point of the three-phase traction motor to eliminate the requirement of a third phase leg. Further cost savings are made possible by sharing the switching devices, dc bus filter capacitors, gate drive power supplies, and control circuit. Simulation and experimental results are included to verify that speed control of the two motors is independent from each other.

Su, Gui-Jia [ORNL; Hsu, John S [ORNL

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Innovative vibration measurement technology for brake development  

Science Journals Connector (OSTI)

Apart from working reliably and providing safety, the comfort features of brakes in vehicles these days have become very significant. The requirement of a noiseless brake system always poses an important chall...

Dipl.-Ing. Holger Marschner; Dr. rer. nat. Dirk Reckwerth

2008-02-01T23:59:59.000Z

42

Heavy Overweight Vehicle Brake Testing (HOVBT)  

E-Print Network [OSTI]

Heavy Overweight Vehicle Brake Testing (HOVBT) Oak Ridge National Laboratory managed by UT for a real-time on-board brake assessment tool. Test Overview A combination tractor-trailer will be given a complete brake rebuild prior to several tests performed at fully -laden and several overweight loading

43

Posterior lip traction caused by intravitreal gas  

SciTech Connect (OSTI)

Traction on the posterior edge of a large tear may be an irreparable consequence of an intraocular gas tamponade used in the first instance to treat the tear. In two of three patients treated with octofluorocyclobutane (C4F8) and perfluoromethane (CF4), redetachment of a retinal tear occurred as a result of traction on the posterior edge of the tear when, prior to the operation, the posterior edge seemed to be free of any traction. With redetachment, a membrane became visible between the anterior and posterior lips of the tear. The membrane was probably posterior hyaloid augmented by cellular proliferation. The gas bubble, which had been intended to press the retina against the pigment epithelium, probably brought the detached posterior hyaloid into contact with the retina as well, and an adhesion between the hyaloid and retina formed.

Lincoff, H.; Kreissig, I.

1981-08-01T23:59:59.000Z

44

Switched reluctance motor based electromechanical brake-by-wire system  

Science Journals Connector (OSTI)

This article presents an overview of electronic braking systems using SR (Switched Reluctance) machines. The advantages presented by this structure when compared to the conventional hydraulic systems are discussed. A justification for the choice of the SRM as a valid candidate is provided, with a detailed analysis of its control structure and performance. Experimental results obtained using a digital signal processor are also presented.

S. Underwood; A. Khalil; I. Husain; H. Klode; B. Lequesne; S. Gopalakrishnan; A. Omekanda

2004-01-01T23:59:59.000Z

45

6 - Engine brake performance in diesel engine system design  

Science Journals Connector (OSTI)

Abstract: This chapter provides a comprehensive theory on engine brake performance. It first discusses vehicle braking requirement and the impact on enginevehicle matching in engine brake operation, followed by a comparison between engine brakes and drivetrain retarders. It then introduces drivetrain retarders in detail including their torque and cooling characteristics. The performance characteristics of exhaust brakes and compression brakes are elaborated including their mechanisms and the interactions with valvetrain, variable valve actuation (VVA) and turbocharger. The principles of engine brake design are introduced through comprehensive simulation analysis on engine thermodynamic cycles in braking operation. A braking gas recirculation (BGR) theory is developed.

Qianfan Xin

2013-01-01T23:59:59.000Z

46

Co-Simulation of an Electric Traction Drive Christoph Schulte and Joachim Bocker  

E-Print Network [OSTI]

Co-Simulation of an Electric Traction Drive Christoph Schulte and Joachim B¨ocker Abstract--For the simulation of electrical drives, reduced- order models or simple look-up tables are often used in order) for an electric drive, where the control structure, power electronics and motor are modeled in different environ

Paderborn, Universität

47

PREDICTING RANGES FOR PULSARS' BRAKING INDICES  

SciTech Connect (OSTI)

The theoretical determination of braking indices of pulsars is still an open problem. In this paper we report results of a study concerning such determination based on a modification of the canonical model, which admits that pulsars are rotating magnetic dipoles, and on data from the seven pulsars with known braking indices. In order to test the modified model, we predict ranges for the braking indices of other pulsars.

Magalhaes, Nadja S.; Miranda, Thaysa A. [Federal University of Sao Paulo, DCET, Rua Sao Nicolau 210, Diadema, SP 09913-030 (Brazil); Frajuca, Carlos, E-mail: nadjasm@gmail.com [Federal Institute of Education, Science and Technology of Sao Paulo, R. Pedro Vicente 625, Sao Paulo, SP 01109-010 (Brazil)

2012-08-10T23:59:59.000Z

48

Hybrid Braking System for Non-Drive Axles  

Broader source: Energy.gov [DOE]

A hybrid braking system is designed to conserve diesel fuel (or alternative fuels) by using regenerative braking, which extends hybrid technology to non-drive axles.

49

TMV Technology Capabilities Brake Stroke Monitor  

E-Print Network [OSTI]

TMV Technology Capabilities Brake Stroke Monitor Brake monitoring systems are proactive maintenance This technology allows for CMV operators to have knowledge of their steer, drive, and tandem axle group weights setup is required. Current Safety/Enforcement Technologies EOBR (electronic on-board recorder) On

50

Voltage stabilization system in traction substation of urban electric transport  

Science Journals Connector (OSTI)

The direct current-voltage stabilization system using a high-frequency link in traction substations of urban electric transport based on applying...

S. V. Shapiro; S. F. Muftiev

2011-02-01T23:59:59.000Z

51

Hydrogen as an energy carrier for railway traction.  

E-Print Network [OSTI]

??The technical suitability of hydrogen for railway traction is evaluated in the research. World-wide, diesel fuel is currently the main source of energy for railways (more)

Hoffrichter, Andreas

2013-01-01T23:59:59.000Z

52

Chapter 6 - Brake System Layout Design  

Science Journals Connector (OSTI)

Abstract This chapter brings together high-level braking system design (Chapters 3 and 4Chapter 3Chapter 4) and the design of friction brakes (Chapter 5) to complete the layout design of road vehicle braking systems. Two actuation systems are studied: hydraulic (used on passenger cars and light commercial vehicles) and pneumatic (used on heavy commercial vehicles). Other braking technologies (e.g. regenerative) and actuation systems (e.g. power hydraulic and electromechanical) are also mentioned. A four-step design procedure is presented, which includes designing the basic braking system parameters based on the vehicle configuration, specifying the brakes (size and torque capacity), designing the actuation system, and verification (legislative requirements). Examples are presented for a hydraulic system with a vacuum booster (passenger car) and a pneumatic system (articulated commercial vehicle), which illustrate the important features of achieving a good basic system configuration. In passenger cars, the importance of driver interface parameters such as pedal feel is explained, and for commercial vehicles, compatibility, load sensing, and predominance between the trailer and towing vehicle brake systems is discussed.

Andrew Day

2014-01-01T23:59:59.000Z

53

Contactless magnetic brake for automotive applications  

E-Print Network [OSTI]

CONTACTLESS MAGNETIC BRAKE FOR AUTOMOTIVE APPLICATIONS A Dissertation by SEBASTIEN EMMANUEL GAY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR... OF PHILOSOPHY May 2005 Major Subject: Electrical Engineering CONTACTLESS MAGNETIC BRAKE FOR AUTOMOTIVE APPLICATIONS A Dissertation by SEBASTIEN EMMANUEL GAY Submitted to Texas A&M University in partial fulfillment of the requirements...

Gay, Sebastien Emmanuel

2009-05-15T23:59:59.000Z

54

Advanced Electric Traction System Technology Development  

SciTech Connect (OSTI)

As a subcontractor to General Motors (GM), Ames Laboratory provided the technical expertise and supplied experimental materials needed to assess the technology of high energy bonded permanent magnets that are injection or compression molded for use in the Advanced Electric Traction System motor. This support was a sustained (Phase 1: 6/07 to 3/08) engineering effort that builds on the research achievements of the primary FreedomCAR project at Ames Laboratory on development of high temperature magnet alloy particulate in both flake and spherical powder forms. Ames Lab also provide guidance and direction in selection of magnet materials and supported the fabrication of experimental magnet materials for development of injection molding and magnetization processes by Arnold Magnetics, another project partner. The work with Arnold Magnetics involved a close collaboration on particulate material design and processing to achieve enhanced particulate properties and magnetic performance in the resulting bonded magnets. The overall project direction was provided by GM Program Management and two design reviews were held at GM-ATC in Torrance, CA. Ames Lab utilized current expertise in magnet powder alloy design and processing, along with on-going research advances being achieved under the existing FreedomCAR Program project to help guide and direct work during Phase 1 for the Advanced Electric Traction System Technology Development Program. The technical tasks included review of previous GM and Arnold Magnets work and identification of improvements to the benchmark magnet material, Magnequench MQP-14-12. Other benchmark characteristics of the desired magnet material include 64% volumetric loading with PPS polymer and a recommended maximum use temperature of 200C. A collaborative relationship was maintained with Arnold Magnets on the specification and processing of the bonded magnet material required by GM-ATC.

Anderson, Iver

2011-01-14T23:59:59.000Z

55

Toward single cell traction microscopy within 3D collagen matrices  

SciTech Connect (OSTI)

Mechanical interaction between the cell and its extracellular matrix (ECM) regulates cellular behaviors, including proliferation, differentiation, adhesion, and migration. Cells require the three-dimensional (3D) architectural support of the ECM to perform physiologically realistic functions. However, current understanding of cellECM and cellcell mechanical interactions is largely derived from 2D cell traction force microscopy, in which cells are cultured on a flat substrate. 3D cell traction microscopy is emerging for mapping traction fields of single animal cells embedded in either synthetic or natively derived fibrous gels. We discuss here the development of 3D cell traction microscopy, its current limitations, and perspectives on the future of this technology. Emphasis is placed on strategies for applying 3D cell traction microscopy to individual tumor cell migration within collagen gels. - Highlights: Review of the current state of the art in 3D cell traction force microscopy. Bulk and micro-characterization of remodelable fibrous collagen gels. Strategies for performing 3D cell traction microscopy within collagen gels.

Hall, Matthew S. [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States); Long, Rong [Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G8 (Canada); Feng, Xinzeng [Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853 (United States); Huang, YuLing [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States); Hui, Chung-Yuen [Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853 (United States); Wu, Mingming, E-mail: mw272@cornell.edu [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States)

2013-10-01T23:59:59.000Z

56

Measuring Shear Stress in Microfluidics using Traction Force Microscopy  

Science Journals Connector (OSTI)

Traction force microscopy is a previously-developed method to measure shear forces exerted by biological cells on substrates to which they are adhered (Dembo, 1999). The technique determines the shear stress a...

Bryant Mueller

2011-01-01T23:59:59.000Z

57

The braking performance of tractor-trailer combinations  

Science Journals Connector (OSTI)

Equations are derived for the maximum decelerations which can be obtained with balanced and unbalanced trailers with and without trailer brakes. The equations are used to produce graphs showing the maximum decelerations of trailers having typical dimensions, of different weights relative to the towing tractor on surfaces of different adhesion coefficients and with different types and degrees of braking on the trailers. Results measured during braking tests on tractors and trailers are given. Unbalanced trailers are shown to have a better braking performance than balanced trailers and it is therefore, recommended that trailers should be designed to carry the maximum permissible proportion of their weight on the tractor. Both over-run and power brakes on trailers are shown to provide very useful improvements in braking performance. Power brakes are preferred because of the difficulty of fitting over-run brakes on unbalanced trailers. The tractor's external hydraulics are considered to be the most convenient source of power. On-off brakes providing a fixed braking force equal to approximately 510% of the trailer maximum gross laden weight are considered to be a useful and simple means of improving existing trailers, but the development of trailer braking systems providing a braking force proportional to the tractor brake pedal force up to a maximum of approximately 2030% of the trailer maximum gross laden weight is considered to be very desirable.

M.J. Dwyer

1970-01-01T23:59:59.000Z

58

Modular PM Motor Drives for Automotive Traction Applications  

SciTech Connect (OSTI)

This paper presents modular permanent magnet (PM) motor drives for automotive traction applications. A partially modularized drive system consisting of a single PM motor and multiple inverters is described. The motor has multiple three-phase stator winding sets and each winding set is driven with a separate three-phase inverter module. A truly modularized inverter and motor configuration based on an axial-gap PM motor is then introduced, in which identical PM motor modules are mounted on a common shaft and each motor module is powered by a separate inverter module. The advantages of the modular approach for both inverter and motor include: (1) power rating scalability--one design meets different power requirements by simply stacking an adequate number of modules, thus avoiding redesigning and reducing the development cost, (2) increased fault tolerance, and (3) easy repairing. A prototype was constructed by using two inverters and an axial-gap PM motor with two sets of three-phase stat or windings, and it is used to assist the diesel engine in a hybrid electric vehicle converted from a Chevrolet Suburban. The effect of different pulse-width-modulation strategies for both motoring and regenerative modes on current control is analyzed. Torque and regenerative control algorithms are implemented with a digital signal processor. Analytical and initial testing results are included in the paper.

Su, G.J.

2001-10-29T23:59:59.000Z

59

Rare-Earth-Free Traction Motor: Rare Earth-Free Traction Motor for Electric Vehicle Applications  

SciTech Connect (OSTI)

REACT Project: Baldor will develop a new type of traction motor with the potential to efficiently power future generations of EVs. Unlike todays large, bulky EV motors which use expensive, imported rare-earth-based magnets, Baldors motor could be light, compact, contain no rare earth materials, and have the potential to deliver more torque at a substantially lower cost. Key innovations in this project include the use of a unique motor design, incorporation of an improved cooling system, and the development of advanced materials manufacturing techniques. These innovations could significantly reduce the cost of an electric motor.

None

2012-01-01T23:59:59.000Z

60

Thermal cracking in disc brakes Thomas J. Mackin *,1  

E-Print Network [OSTI]

Thermal cracking in disc brakes Thomas J. Mackin *,1 , Steven C. Noe, K.J. Ball, B.C. Bedell, D, or hub, which is connected to the wheel and axle, and an inboard and outboard braking surface

Salvaggio, Carl

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

A diagnostic system for air brakes in commercial vehicles  

E-Print Network [OSTI]

This dissertation deals with the development of a model-based diagnostic system for air brake systems that are widely used in commercial vehicles, such as trucks, tractor-trailers, buses, etc. The performance of these brake systems is sensitive...

Coimbatore Subramanian, Shankar Ram

2007-09-17T23:59:59.000Z

62

Why Brake-By-Wire (BBW) ? Advantages of BBW  

E-Print Network [OSTI]

Conventional Brake System http://www.conti-online.com #12;BBW Survey [ SKF (Motor + PGT +Ball Screw)] [ DELPHI (Motor + PGT +Ball Screw)] [Continental Teves (Motor + PGT + Roller Screw)] [Continental Teves installed at wheel] #12;Sectional Drawing of the Electromechanically Actuated Disk Brake From ITT Brake Pads Caliper

Yao, Bin

63

Design of H Bridge Cascaded Filter and Bidirectional Converter for Railway Traction System  

Science Journals Connector (OSTI)

To develop a practical and efficient electronic device for compensating the negative, reactive and harmonic current in the railway traction system, the paper analyses the structure of the present railway traction...

Tian Mingxing; Zhao Qingchun; Yang Jianfeng

2014-01-01T23:59:59.000Z

64

Wind turbine trailing-edge aerodynamic brake design  

SciTech Connect (OSTI)

This report describes the design of a centrifugally actuated aerodynamic-overspeed device for a horizontal-axis wind turbine. The device will meet the following criteria; (1) It will be effective for airfoil angles of attack 0{degrees} to 45{degrees}. (2) It will be stowed inside the blade profile prior to deployment. (3) It will be capable of offsetting the positive torque produced by the overall blade. (4) Hinge moments will be minimized to lower actuator loads and cost. (5) It will be evaluated as a potential power modulating active rotor-control system. A literature review of aerodynamic braking devices was conducted. Information from the literature review was used to conceptualize the most effective devices for subsequent testing and design. Wind-tunnel test data for several braking devices are presented in this report. Using the data for the most promising configuration, a preliminary design was developed for a MICON 65/13 wind turbine with Phoenix 7.9-m rotor blades.

Quandt, G.

1996-01-01T23:59:59.000Z

65

Airborne wear particles railway research group FEM Simulation of train disc brake behavior  

E-Print Network [OSTI]

1 Airborne wear particles railway research group FEM Simulation of train disc brake behavior a modern train disc brake with brake caliper and high speed pads. During braking, a considerable amount. A model of train brake caliper Aim The overall aim of the MSc degree project is to develop a thermoelastic

Haviland, David

66

Development of Diagnostic Algorithms for Air Brakes in Trucks  

E-Print Network [OSTI]

for di erent clearances and supply pressures : : : 6 4 Modes of operation of the air brake system [19] : : : : : : : : : : : : 11 5 A simpli ed layout of air brake system for a tractor : : : : : : : : : : 15 6 S-cam foundation brake..., causing it to rotate the slack adjuster. The slack adjuster, in turn, rotates 15 Fig. 5. A simpli ed layout of air brake system for a tractor the S-cam as it is connected to the S-cam through a splined shaft. The rotational mo- tion of the S-cam pushes...

Dhar, Sandeep

2011-10-21T23:59:59.000Z

67

E-Print Network 3.0 - air brakes Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

brakes to predominantly air disc brakes. Compare and contrast the impact of such conversions in Europe... Energy Efficiency in Heavy Vehicle Tires, Drivetrains, and ......

68

E-Print Network 3.0 - antilock brake systems Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

such as trucks, tractor... -trailers and buses. In these brake systems, compressed air is used as the energy transmitting medium to actuate... the foundation brakes mounted...

69

E-Print Network 3.0 - anti-lock braking system Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

such as trucks, tractor... -trailers and buses. In these brake systems, compressed air is used as the energy transmitting medium to actuate... the foundation brakes mounted...

70

Many applications require brakes, for instance to decelerate or to  

E-Print Network [OSTI]

surfaces in order to generate the braking torque. Typically, actuators Statically balancing A team of TU an error occurs in the process of a robotic arm. The energy consumption and actuation force of these brakes is very high. A team of TU Delft scientists developed a method to reduce the energy consumption

71

Lithium Economy: Will It Get the Electric Traction?  

Science Journals Connector (OSTI)

Lithium Economy: Will It Get the Electric Traction? ... In the battle for alternative fuels for a decarbonized transportation sector, electricity has a definite edge. ... However, at the large scales of extraction required for transforming the automobile scene, the production facilities could pose severe challenges to the environment in terms of water table and fresh water supplies as well as the fallout of the extraction on the flora and fauna in the neighborhood. ...

A. K. Shukla; T. Prem Kumar

2013-02-07T23:59:59.000Z

72

Solar tracker motor having a fixed caliper and a translating caliper each with an electromagnetic brake system  

DOE Patents [OSTI]

Concepts and technologies described herein provide for an accurate and cost-effective method for rotating a solar array disk for tracking the movement of the sun. According to various aspects, a motor includes a fixed caliper and a translating caliper positioned adjacent to one another. Electromagnetically controlled brakes on the translating caliper grip the solar array disk while adjacent, but spaced apart, electromagnets on the fixed caliper and the translating caliper are energized to create an attractive force that pulls the translating caliper with the solar array disk toward the fixed caliper. After reaching the fixed caliper, brakes on the fixed caliper are engaged with the disk, brakes on the translating caliper are released from the disk, and the translating caliper is pushed back to the starting location where the process repeats until the desired rotation is completed.

Rau, Scott James

2013-01-29T23:59:59.000Z

73

A frequency domain model for 3 kV dc traction dc-side resonance identification  

SciTech Connect (OSTI)

Frequency-dependent effects in railway traction power systems arise from the impedance of substation and locomotive line filters and the traction line. Harmonic noise from traction drives and substations can excite resonances and produce overcurrent or overvoltage conditions at critical points in the network. In this paper, the harmonic feeding impedances of a 3 kV DC traction system seen from the rectifier substation, locomotive drive converter and pantograph terminals are presented. Several substation and locomotive filters are considered with a frequency-dependent traction line. Resonances attributed to the substation filter, locomotive filter and traction line are separate and distinct, the line introducing poles and zeros in the audio frequency (AF) range which vary in frequency and magnitude with locomotive position.

Hill, R.J. [Univ. of Bath (United Kingdom). School of Electronic and Electrical Engineering] [Univ. of Bath (United Kingdom). School of Electronic and Electrical Engineering; Fracchia, M.; Pozzobon, P.; Sciutto, G. [Univ. degli Studi di Genova (Italy). Dipt. di Ingegneria Elettrica] [Univ. degli Studi di Genova (Italy). Dipt. di Ingegneria Elettrica

1995-08-01T23:59:59.000Z

74

E-Print Network 3.0 - asynchronous traction engines Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

. Traction aids can also increase machine stability, improve flotation and protect tyres (Figure 1 Source: Forest Research Agency of the UK Forestry Commission Collection:...

75

E-Print Network 3.0 - ac traction drives Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

. Traction aids can also increase machine stability, improve flotation and protect tyres (Figure 1 Source: Forest Research Agency of the UK Forestry Commission Collection:...

76

Investigation of aerodynamic braking devices for wind turbine applications  

SciTech Connect (OSTI)

This report documents the selection and preliminary design of a new aerodynamic braking system for use on the stall-regulated AWT-26/27 wind turbines. The goal was to identify and design a configuration that offered improvements over the existing tip brake used by Advanced Wind Turbines, Inc. (AWT). Although the design objectives and approach of this report are specific to aerodynamic braking of AWT-26/27 turbines, many of the issues addressed in this work are applicable to a wider class of turbines. The performance trends and design choices presented in this report should be of general use to wind turbine designers who are considering alternative aerodynamic braking methods. A literature search was combined with preliminary work on device sizing, loads and mechanical design. Candidate configurations were assessed on their potential for benefits in the areas of cost, weight, aerodynamic noise, reliability and performance under icing conditions. As a result, two configurations were identified for further study: the {open_quotes}spoiler-flap{close_quotes} and the {open_quotes}flip-tip.{close_quotes} Wind tunnel experiments were conducted at Wichita State University to evaluate the performance of the candidate aerodynamic brakes on an airfoil section representative of the AWT-26/27 blades. The wind tunnel data were used to predict the braking effectiveness and deployment characteristics of the candidate devices for a wide range of design parameters. The evaluation was iterative, with mechanical design and structural analysis being conducted in parallel with the braking performance studies. The preliminary estimate of the spoiler-flap system cost was $150 less than the production AWT-26/27 tip vanes. This represents a reduction of approximately 5 % in the cost of the aerodynamic braking system. In view of the preliminary nature of the design, it would be prudent to plan for contingencies in both cost and weight.

Griffin, D.A. [R. Lynette & Associates, Seattle, WA (United States)

1997-04-01T23:59:59.000Z

77

A Power Presizing Methodology for Electric Vehicle Traction Motors Bekheira Tabbache1,2  

E-Print Network [OSTI]

A Power Presizing Methodology for Electric Vehicle Traction Motors Bekheira Tabbache1,2 , Sofiane for presizing the power of an electric vehicle traction motor. Based on the vehicle desired performances motor, power presizing, driving cycle. Nomenclature EV = Electric Vehicle; V = Vehicle speed; Vb

Paris-Sud XI, Université de

78

Exploring the Effect of Inter-Stop Transport Distances on Traction Energy Cost Intensities of Freight Trains  

Science Journals Connector (OSTI)

With a computer-aided simulation approach, this research analyzes the change of the traction energy cost intensity of a typically formed Chinese freight ... than 20.00km to decrease the traction energy cost per ...

Xuesong Feng; Haidong Liu; Keqi Wu

2013-01-01T23:59:59.000Z

79

Modeling the pneumatic relay valve of an s-cam air brake  

E-Print Network [OSTI]

Statistics indicate that defects in brake system contribute significantly to fatal crashes involving commercial vehicles. Hence there is a need for developing preventive and active safety measures for assessing the performance of an air brake system...

Vilayannur Natarajan, Shankar

2005-08-29T23:59:59.000Z

80

Evaluation of driver braking performance to an unexpected object in the roadway  

E-Print Network [OSTI]

components, specifically whether the equation accurately reflects driver and vehicle behaviors during a braking maneuver. This research evaluated the two components of the SSD equation. Four field studies were conducted that evaluated driver braking...

Picha, Dale Louis

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

E-Print Network 3.0 - air brake association Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

... Source: Southwest Region University Transportation Center Collection: Engineering ; Energy Storage, Conversion and Utilization 2 Commercial Motor Vehicle Brake Assessment...

82

Study on integrated automation system of traction substation for express railway lines  

Science Journals Connector (OSTI)

The structure and function of integrated automation system of traction substation for express electric railway lines developed by our university are discussed in this paper. The paper mainly describes the function installation of monitoring and communication ...

Gao Shibin; Chen Xiaochuan; Wang Qian; Wang Ren; Chen Weirong; Xiong Liebin

2002-11-01T23:59:59.000Z

83

Fault diagnosis of electric railway traction substation with model-based relation guiding algorithm  

Science Journals Connector (OSTI)

Abstract Most diagnosis systems used in electric railway traction substation are expert systems based on experience, which cannot diagnose faults beyond experience and are very difficult for transplantation and maintenance. In this paper, the model-based diagnosis (MBD) with integration reasoning is firstly used for fault diagnosis of electric railway traction substation. Aiming at the structural characteristics and actual demands of traction substation, we propose a detailed application plan. Rules for element and system models are established. In addition, we propose a relation guiding algorithm (RGA) for searching candidates of minimal conflict set, in which the hidden messages of analytical redundancy relations can be made full use of and the searching space is reduced further. Taking the autotransformer (AT) traction substation in HefeiNanjing Passenger Link of China Railway as an example, we construct models for different device objects, and give the descriptions of system model in traction substation. Based on a sequence of fault observations, the fault diagnosis is tested with the proposed plan. The diagnosis result shows that the application plan with MBD and integration reasoning is feasible and effective for traction substation.

Zhigang Liu; Zhiwei Han

2014-01-01T23:59:59.000Z

84

A mathematical model for air brake systems in the presence of leaks  

E-Print Network [OSTI]

model for an air brake system in the presence of leaks. Brake systems in trucks are crucial for ensuring the safety of vehicles and passengers on the roadways. Most trucks in the US are equipped with S-cam drum brake systems and they are sensitive.... Overview Air brake systems are used in heavy commercial vehicles like buses, straight trucks and combination vehicles such as tractor-trailers[1]. More than 85% of the commer- cial vehicles in the US are equipped with S-cam drum brakes[2]. Proper...

Ramaratham, Srivatsan

2008-10-10T23:59:59.000Z

85

Probability of failure of the waste hoist brake system at the Waste Isolation Pilot Plant (WIPP)  

SciTech Connect (OSTI)

In its most recent report on the annual probability of failure of the waste hoist brake system at the Waste Isolation Pilot Plant (WIPP), the annual failure rate is calculated to be 1.3E({minus}7)(1/yr), rounded off from 1.32E({minus}7). A calculation by the Environmental Evaluation Group (EEG) produces a result that is about 4% higher, namely 1.37E({minus}7)(1/yr). The difference is due to a minor error in the US Department of Energy (DOE) calculations in the Westinghouse 1996 report. WIPP`s hoist safety relies on a braking system consisting of a number of components including two crucial valves. The failure rate of the system needs to be recalculated periodically to accommodate new information on component failure, changes in maintenance and inspection schedules, occasional incidents such as a hoist traveling out-of-control, either up or down, and changes in the design of the brake system. This report examines DOE`s last two reports on the redesigned waste hoist system. In its calculations, the DOE has accepted one EEG recommendation and is using more current information about the component failures rates, the Nonelectronic Parts Reliability Data (NPRD). However, the DOE calculations fail to include the data uncertainties which are described in detail in the NPRD reports. The US Nuclear Regulatory Commission recommended that a system evaluation include mean estimates of component failure rates and take into account the potential uncertainties that exist so that an estimate can be made on the confidence level to be ascribed to the quantitative results. EEG has made this suggestion previously and the DOE has indicated why it does not accept the NRC recommendation. Hence, this EEG report illustrates the importance of including data uncertainty using a simple statistical example.

Greenfield, M.A. [Univ. of California, Los Angeles, CA (United States); Sargent, T.J. [Univ. of Chicago, IL (United States)]|[Stanford Univ., CA (United States). Hoover Institution

1998-01-01T23:59:59.000Z

86

Comparison of the environmental performance of light mechanization and animal traction using a modular LCA approach  

Science Journals Connector (OSTI)

Abstract Animal traction has supported humans in most field operations since the origin of agriculture. With the introduction of mechanization, humans gained access to much more work power at similar management costs and were able to significantly increase the productivity and time efficiency of field operations. This achievement completely changed food production systems for all populations able to access such technology. Nowadays, animal traction is mainly used in the developing countries, in specific contexts such as mountainous areas due to the difficulties in using tractors, and within farm tourism in the developed countries. Although the consumption of non-renewable resources is clearly higher in crop production systems that use mechanized traction, tractor traction may involve low consumption of fuel relative to that needed for feed production for equivalent draught animals. Mechanical traction can also facilitate precision agriculture, which uses less fuel, while animals, as living systems, consume resources even when they are not working. This study compared the environmental performance of animal traction with that of machine traction in two scenarios: (I) A forest harvesting system, using as the functional unit the logging operations needed to obtain 50t market-ready wood and (II) a seedbed preparation system, using as the functional unit the management of 1000m2 of prepared seedbed. Use of animal traction for these two systems was evaluated on the La Masca farm in Roccaverano, Asti, Northern Italy, while use of machine traction was evaluated using field data on two-wheel tractors performing the operations in similar production systems, converted to the specific functional unit. Owing to the differing properties of mechanical and living systems, it was difficult to establish a reliable standard LCA model of the forestry and food production system. In particular, it proved necessary to include the whole life cycle impacts from tractors and animals. Therefore, we applied a modular LCA approach in which all mechanical implements and animals were accounted as independent modules, a complete life cycle impact assessment phase was performed and results were related to the contribution of the module in the main workflow of the scenario. The final results showed better environmental performance of animal traction both per unit weight of market-ready wood and per unit surface area of prepared seedbed.

Alessandro K. Cerutti; Angela Calvo; Sander Bruun

2014-01-01T23:59:59.000Z

87

E-Print Network 3.0 - automotive brake materials Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

such as trucks, tractor... -trailers and buses. In these brake systems, compressed air is used as the energy transmitting medium to ... Source: Southwest Region University...

88

Low cost, compact, and high efficiency traction motor for electric and hybrid electric vehicles  

SciTech Connect (OSTI)

A new motor drive, the switched reluctance motor drive, has been developed for hybrid-electric vehicles. The motor drive has been designed, built and tested in the test bed at a near vehicle scale. It has been shown that the switched reluctance motor drive is more suitable for traction application than any other motor drive.

Ehsani, Mark

2002-10-07T23:59:59.000Z

89

A New Aerodynamic Traction Principle for Handling Products on an Air Cushion  

E-Print Network [OSTI]

1 A New Aerodynamic Traction Principle for Handling Products on an Air Cushion Guillaume J. Laurent. The product is carried on a thin air cushion and transported along the system by induced air flows principle for handling delicate and clean products, such as silicon wafers, glass sheets or flat foodstuff

Paris-Sud XI, Université de

90

INTRODUCTION The main reasons for fitting traction aids to forest machines  

E-Print Network [OSTI]

INTRODUCTION The main reasons for fitting traction aids to forest machines are to increase the grip between machine wheels and the ground surface and to spread load weight. The area of the wheel in contact than wheels alone the footprint size increases and ground pressure exerted by the machine is reduced

91

EV3 : Traction drives and generators A: Electric machine design and optimization 1  

E-Print Network [OSTI]

EV3 : Traction drives and generators A: Electric machine design and optimization 1 Influence Electrical Machine Type B. Aslan1 , J. Korecki1 , T. Vigier1 , E. Semail1 bassel.aslan@yahoo.com, korecki according to the electrical angle e (angle between current and back-EMF vector), for different values

Boyer, Edmond

92

A micropatterning and image processing approach to simplify measurement of cellular traction forces  

E-Print Network [OSTI]

of traction force microscopy on polyacrylamide (PAA) gels that addresses limitations of existing technologies. Through an indirect pat- terning technique, we generated PAA gels with fluorescent 1 lm dot markers (PAA) hydrogels are popular substrates for this purpose, although PAA substrates first have

93

Laboratory testing of Saft SEH-5-200 6 volt traction battery  

SciTech Connect (OSTI)

The purpose of this report is to describe the testing performed on the Saft SEH-5-200 flooded nickel cadmium traction battery by the INEL Electric Vehicle Battery Laboratory, to present the results and conclusions of this testing, and to make appropriate recommendations. 17 figs., 3 tabs.

Hardin, J.E.

1989-12-01T23:59:59.000Z

94

An analysis of the annual probability of failure of the waste hoist brake system at the Waste Isolation Pilot Plant (WIPP)  

SciTech Connect (OSTI)

The Environmental Evaluation Group (EEG) previously analyzed the probability of a catastrophic accident in the waste hoist of the Waste Isolation Pilot Plant (WIPP) and published the results in Greenfield (1990; EEG-44) and Greenfield and Sargent (1993; EEG-53). The most significant safety element in the waste hoist is the hydraulic brake system, whose possible failure was identified in these studies as the most important contributor in accident scenarios. Westinghouse Electric Corporation, Waste Isolation Division has calculated the probability of an accident involving the brake system based on studies utilizing extensive fault tree analyses. This analysis conducted for the U.S. Department of Energy (DOE) used point estimates to describe the probability of failure and includes failure rates for the various components comprising the brake system. An additional controlling factor in the DOE calculations is the mode of operation of the brake system. This factor enters for the following reason. The basic failure rate per annum of any individual element is called the Event Probability (EP), and is expressed as the probability of failure per annum. The EP in turn is the product of two factors. One is the {open_quotes}reported{close_quotes} failure rate, usually expressed as the probability of failure per hour and the other is the expected number of hours that the element is in use, called the {open_quotes}mission time{close_quotes}. In many instances the {open_quotes}mission time{close_quotes} will be the number of operating hours of the brake system per annum. However since the operation of the waste hoist system includes regular {open_quotes}reoperational check{close_quotes} tests, the {open_quotes}mission time{close_quotes} for standby components is reduced in accordance with the specifics of the operational time table.

Greenfield, M.A. [Univ. of California, Los Angeles, CA (United States); Sargent, T.J.

1995-11-01T23:59:59.000Z

95

Modeling the pneumatic subsystem of a S-cam air brake system  

E-Print Network [OSTI]

The air brake system is one of the critical components in ensuring the safe operation of any commercial vehicle. This work is directed towards the development of a fault-free model of the pneumatic subsystem of the air brake system. This model can...

Coimbatore Subramanian, Shankar

2004-09-30T23:59:59.000Z

96

Plant and Environment Interactions Arsenic Accumulation in the Hyperaccumulator Chinese Brake and Its Utilization  

E-Print Network [OSTI]

in a greenhouse. At recently, however, has Chinese brake (Pteris vittata L.)harvest, the Chinese brake produced soils (0.47­7.56 mg As kg 1 ),concentration to water-soluble arsenic in soil) of 1450 and a transloca to remediate arsenic contaminated soils. schullat, 2000), soil arsenic concentration (Jiang and Singh, 1994

Ma, Lena

97

Microsoft PowerPoint - Real-Time Dynamic Brake Assessment poster.ppt [Compatibility Mode]  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dynamic Brake Assessment Dynamic Brake Assessment Purpose Conduct a proof-of-concept test to examine the feasibility of developing an on-board system to assess a vehicle's ability to stop based on typical low-pressure in-service braking events. Partnerships H.T. Hackney Company MGM Brakes Overview Funded through the Federal Motor Carrier Safety Administration's Vehicle and Roadside Operations Division Concept stemming from on the Department of Energy's Medium Truck Duty Cycle research as well as previous research conducted for the National Highway Transportation Safety Administration. Signals to be collected Real-time brake application pressure Vehicle speed and acceleration GPS location and grade information Vehicle weight (current load) Engine parameters such as RPM and torque To be conducted October 2010 -

98

Traction Drive System for Electric Vehicles, Using Multilevel Converters Juan W. Dixon, Micah Ortzar and Felipe Ros  

E-Print Network [OSTI]

Traction Drive System for Electric Vehicles, Using Multilevel Converters Juan W. Dixon, Micah converters for electric vehicles using multilevel inverters. They are being compared with inverters using. Introduction Power Electronics technologies contribute with important part in the development of electric

Catholic University of Chile (Universidad Católica de Chile)

99

ECE 438 Electric and Hybrid Vehicles Catalog Description: History of electric traction. Introduction to electric and hybrid-electric  

E-Print Network [OSTI]

ECE 438 ­ Electric and Hybrid Vehicles Catalog Description: History of electric traction. Introduction to electric and hybrid-electric vehicle configurations. Vehicle mechanics. Energy sources and storage. Range prediction. Motor for HEVs. Electric drive components. Vehicle transmission system. Credits

100

Roles of 3D traction forces in migration and focal adhesion dynamics of bovine aortic endothelial cells  

E-Print Network [OSTI]

BY BAEC. 51 FIG. 3-21. 3D DISPLACEMENT FIELD BY BAECPAXILLIN 52 xii FIG. 3-22. 3D TRACTION FORCE FIELD BY BAEC61 FIG. 3-31. 3D DISPLACEMENT FIELD OF GFP-FAK TRANSFECTED

Hur, Sung-Sik

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Motorized control for mirror mount apparatus  

DOE Patents [OSTI]

A motorized control and automatic braking system for adjusting mirror mount apparatus is disclosed. The motor control includes a planetary gear arrangement to provide improved pitch adjustment capability while permitting a small packaged design. The motor control for mirror mount adjustment is suitable for laser beam propagation applications. The brake is a system of constant contact, floating detents which engage the planetary gear at selected between-teeth increments to stop rotation instantaneously when the drive motor stops.

Cutburth, Ronald W. (Tracy, CA)

1989-01-01T23:59:59.000Z

102

Overmodulation in Current Controlled Drives  

E-Print Network [OSTI]

220 Chapter 5 Overmodulation in Current Controlled Drives 5.1 Introduction The performance of voltage feedforward controlled constant V f PWM-VSI drives is insu cient for most industrial processes performance control methods. Electric traction, el- evators, textile machines, paper and plastic machines

Hava, Ahmet

103

RESEARCH ARTICLE Controlling speed and direction during interception  

E-Print Network [OSTI]

. Turning rate was controlled using a steering wheel and speed was controlled using a foot pedal (Wann and Land 2000), braking (Lee 1976; Yilmaz and Warren 1995), and fly ball catching (Chapman 1968

104

Effect of Nanoclay Reinforcement on the Friction Braking Performance of Hybrid Phenolic Friction Composites  

Science Journals Connector (OSTI)

Friction composite formulation consisting of decreasing nanoclay/lapinus fibres content, increasing graphite/aramid fibres ... is adopted for evaluating braking performance. The nanoclay content (?2.25wt.%) enha...

Tej Singh; Amar Patnaik

2013-03-01T23:59:59.000Z

105

Achieving Consistent Maximum Brake Torque with Varied Injection Timing in a DI Diesel Engine  

E-Print Network [OSTI]

, the characteristics of combustion for swept injection timings along the maximum brake torque plateau are determined. The research is conducted by varying injection timing at constant engine speed and load while measuring engine emissions and in-cylinder pressure...

Kroeger, Timothy H

2013-09-19T23:59:59.000Z

106

Electric Traction  

Science Journals Connector (OSTI)

... is followed in the part devoted to railways, with the addition of a chapter on substations. Then follows a chapter on cost of tramway work, which, being taken from ... ton-mile, it does not necessarily mean low running cost, because the cost of substations and feeders increases considerably wilh I he acceleration provided for. All these matters are ...

GISBERT KAPP

1907-12-26T23:59:59.000Z

107

Low frequency vibrations in disc brakes at high car speed. Part II: mathematical model and simulation  

Science Journals Connector (OSTI)

In the present paper, a mathematical model is constructed for judder in disc brakes at high speed. Vehicle suspension is modelled by means of finite elements. Vibration modes and frequencies are derived that can be used in the classification of modes in main and secondary based in the relative disc-calliper displacement; the finite element model is also used as well as in forced-response analysis. Brake pads are defined through the friction coefficient as a function of speed, pressure, and temperature, in light of which one may consider the various braking conditions and types of pad. Since the line of reasoning introduces equivalent-damping terms into the equations of dynamics, these equations cannot be uncoupled by means of modal transformation. Two techniques are proposed for the solution of the problem. One of these consists in an examination of the 'main-modes', while the other is based on direct integration of the quasi-uncoupled equations. A computer program has been implemented which allows the simulation of this kind of judder with different pads, brake systems and braking conditions.

R. Aviles; G. Hennequet; E. Amezua; J. Vallejo

1995-01-01T23:59:59.000Z

108

Compliant mechanism road bicycle brake: a rigid-body replacement case study  

SciTech Connect (OSTI)

The design of high-performance bicycle brakes is complicated by the competing design objectives of increased performance and low weight. But this challenge also provides a good case study to demonstrate the design of compliant mechanisms to replace current rigid-link mechanisms. This paper briefly reviews current road brake designs, demonstrates the use of rigid-body replacement synthesis to design a compliant mechanism, and illustrates the combination of compliant mechanism design tools. The resulting concept was generated from the modified dual-pivot brake design and is a partially compliant mechanism where one pin has the dual role of a joint and a mounting pin. The pseudo-rigid-body model, finite element analysis, and optimization algorithms are used to generate design dimensions, and designs are considered for both titanium and E-glass flexures. The resulting design has the potential of reducing the part count and overall weight while maintaining a performance similar to the benchmark.

Olsen, Brian M [Los Alamos National Laboratory; Howell, Larry L [NON LANL; Magleby, Spencer P [NON LANL

2011-01-19T23:59:59.000Z

109

3736 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 59, NO. 8, OCTOBER 2010 Asymmetrical Multilevel Inverter for Traction Drives  

E-Print Network [OSTI]

this "one-source" multilevel system. Index Terms--AC motor drives, electric vehicles (EVs), hybrid EVs (HEVs Multilevel Inverter for Traction Drives Using Only One DC Supply Juan Dixon, Senior Member, IEEE, Javier of isolated and floating dc supplies, which makes these converters complicated to implement in electric

Catholic University of Chile (Universidad Católica de Chile)

110

PM Motor Parametric Design Analyses for a Hybrid Electric Vehicle Traction Drive Application  

SciTech Connect (OSTI)

The Department of Energy's (DOE) Office of FreedomCAR (Cooperative Automotive Research) and Vehicle Technologies office has a strong interest in making rapid progress in permanent magnet (PM) machine development. The DOE FreedomCAR program is directing various technology development projects that will advance the technology and hopefully lead to a near-term request for proposals (RFP) for a to-be-determined level of initial production. This aggressive approach is possible because the technology is clearly within reach and the approach is deemed essential, based on strong market demand, escalating fuel prices, and competitive considerations. In response, this study began parallel development paths that included a literature search/review, development and utilization of multiple parametric models, verification of the modeling methodology, development of an interior PM (IPM) machine baseline design, development of alternative machine baseline designs, and cost analyses for several candidate machines. This report summarizes the results of these activities as of September 2004. This report provides background and summary information for recent machine parametric studies and testing programs that demonstrate both the potential capabilities and technical limitations of brushless PM machines (axial gap and radial gap), the IPM machine, the surface-mount PM machines (interior or exterior rotor), induction machines, and switched-reluctance machines. The FreedomCAR program, while acknowledging the progress made by Oak Ridge National Laboratory (ORNL), Delphi, Delco-Remy International, and others in these programs, has redirected efforts toward a ''short path'' to a marketable and competitive PM motor for hybrid electric vehicle (HEV) traction applications. The program has developed a set of performance targets for the type of traction machine desired. The short-path approach entails a comprehensive design effort focusing on the IPM machine and meeting the performance targets. The selection of the IPM machine reflects industry's confidence in this market-proven design that exhibits a high power density.

Staunton, R.H.

2004-10-11T23:59:59.000Z

111

PM Motor Parametric Design Analyses for Hybrid Electric Vehicle Traction Drive Application: Interim Report  

SciTech Connect (OSTI)

The Department of Energy's (DOE) Office of FreedomCAR (Cooperative Automotive Research) and Vehicle Technologies has a strong interest in making rapid progress in permanent magnet (PM) machine development. The program is directing various technology development projects that will advance the technology and lead to request for proposals (RFP) for manufacturer prototypes. This aggressive approach is possible because the technology is clearly within reach and the approach is deemed essential, based on strong market demand, escalating fuel prices, and competitive considerations. In response, this study began parallel development paths that included a literature search/review, development and utilization of multiple parametric models to determine the effects of design parameters, verification of the modeling methodology, development of an interior PM (IPM) machine baseline design, development of alternative machine baseline designs, and cost analyses for several candidate machines. This interim progress report summarizes the results of these activities as of June 2004. This report provides background and summary information for recent machine parametric studies and testing programs that demonstrate both the potential capabilities and technical limitations of brushless PM machines (axial gap and radial gap), the IPM machine, the surface-mount PM machines (interior or exterior rotor), induction machines, and switched reluctance machines. The FreedomCAR program, while acknowledging the progress made by Oak Ridge National Laboratory, Delphi, Delco-Remy International, and others in these programs, has redirected efforts toward a ''short path'' to a marketable and competitive PM motor for hybrid electric vehicle traction applications. The program has developed a set of performance targets for the type of traction machine desired. The short-path approach entails a comprehensive design effort focusing on the IPM machine and meeting the performance targets. The selection of the IPM machine reflects industry's confidence in this market-proven design that exhibits a power density surpassed by no other machine design.

Staunton, R.H.

2004-08-11T23:59:59.000Z

112

Genetic programming approach to predict torque and brake specific fuel consumption of a gasoline engine  

Science Journals Connector (OSTI)

This study presents genetic programming (GP) based model to predict the torque and brake specific fuel consumption a gasoline engine in terms of spark advance, throttle position and engine speed. The objective of this study is to develop an alternative robust formulations based on experimental data and to verify the use of GP for generating the formulations for gasoline engine torque and brake specific fuel consumption. Experimental studies were completed to obtain training and testing data. Of all 81 data sets, the training and testing sets consisted of randomly selected 63 and 18 sets, respectively. Considerable good performance was achieved in predicting gasoline engine torque and brake specific fuel consumption by using GP. The performance of accuracies of proposed GP models are quite satisfactory (R2=0.9878 for gasoline engine torque and R2=0.9744 for gasoline engine brake specific fuel consumption). The prediction of proposed GP models were compared to those of the neural network modeling, and strictly good agreement was observed between the two predictions. The proposed GP formulation is quite accurate, fast and practical.

Necla Togun; Sedat Baysec

2010-01-01T23:59:59.000Z

113

Real-Time Dynamic Brake Assessment Conduct a proof-of-concept  

E-Print Network [OSTI]

Real-Time Dynamic Brake Assessment Purpose Conduct a proof-of-concept test to examine the Federal Motor Carrier Safety Administration's Vehicle and Roadside Operations Division Concept stemming conducted for the National Highway Transportation Safety Administration. Signals to be collected Real

114

Mechanically versus electro-magnetically braked cycle ergometer: performance and energy cost of the Wingate Anaerobic Test  

Science Journals Connector (OSTI)

Performance and metabolic profiles of the Wingate Anaerobic Test (WAnT) were compared between a mechanically resisted (ME) and an electro-magnetically braked (EE) cycle ergometer. Fifteen healthy subjects (24....

D. Micklewright; A. Alkhatib; R. Beneke

2006-04-01T23:59:59.000Z

115

Effets de l'hydrogene sur les caracteristiques de rupture par traction d'aciers inoxydables  

Science Journals Connector (OSTI)

Rsum On tudie les effets de l'hydrogne sur des aciers inoxydables, qui sont des matriaux de gainage possibles pour des racteurs utilisant l'hydrogne comme gaz de refroidissement. On montre que la charge apparente de rupture la traction n'est plus que 80 % de sa valeur initiale lorsque la teneur en hydrogne atteint 50 cc TPN/100 g, et que la striction passe dans ces conditions de 80 % 55 %. L'examen microfractographique qui a t effectu avec succs par une technique de double rplique malgr la petitesse des chantillons (? 0,3 mm environ), rvle que tout en gardant un caractre ductile, l'aspect des surfaces de rupture volue notablement avec la teneur en hydrogne. This paper deals with the effects of hydrogen on stainless steel, which is a possible canning material in hydrogen-cooled reactors. Apparent ultimate tensile strength is only 80 % of the initial value for a hydrogen content of about 50 cc NTP/100 g and reduction in area decreases from 80 % to 55 %. A special two-stage replica technique has been developed which allows fracture surfaces of small tensile specimens (about 0.3 mm dia.) to be examined by electron microscopy. All the specimens showed evidence of ductile character throughout the range of hydrogen contents investigated, but the aspect of the fracture surface gradually changes with increasing hydrogen content.

R. Blanchard; J. Pelissier; M. Pluchery

1960-01-01T23:59:59.000Z

116

The effectiveness of using the calculated braking current for longitudinal differential protection of 110 - 750 kV shunt reactors  

SciTech Connect (OSTI)

The use of the function of effective current braking of the longitudinal differential protection of shunt reactors to offset current surges, which enables the sensitivity of differential protection to be increased when there are short circuits with low damage currents, is considered. It is shown that the use of the calculated braking characteristic enables the reliability of offset protection from transients to be increased when the reactor is connected, which is accompanied by the flow of asymmetric currents containing an aperiodic component.

Vdovin, S. A. [JSC 'E and E' (Russian Federation); Shalimov, A. S. [LLC Selekt Co. (Russian Federation)

2013-05-15T23:59:59.000Z

117

Nonlinear analysis of time series of vibration data from a friction brake: SSA, PCA, and MFDFA  

E-Print Network [OSTI]

We use the methodology of singular spectrum analysis (SSA), principal component analysis (PCA), and multi-fractal detrended fluctuation analysis (MFDFA), for investigating characteristics of vibration time series data from a friction brake. SSA and PCA are used to study the long time-scale characteristics of the time series. MFDFA is applied for investigating all time scales up to the smallest recorded one. It turns out that the majority of the long time-scale dynamics, that is presumably dominated by the structural dynamics of the brake system, is dominated by very few active dimensions only and can well be understood in terms of low dimensional chaotic attractors. The multi-fractal analysis shows that the fast dynamical processes originating in the friction interface are in turn truly multi-scale in nature.

Nikolay K. Vitanov; Norbert P. Hoffmann; Boris Wernitz

2014-10-23T23:59:59.000Z

118

DOES MAGNETIC-FIELD-ROTATION MISALIGNMENT SOLVE THE MAGNETIC BRAKING CATASTROPHE IN PROTOSTELLAR DISK FORMATION?  

SciTech Connect (OSTI)

Stars form in dense cores of molecular clouds that are observed to be significantly magnetized. In the simplest case of a laminar (non-turbulent) core with the magnetic field aligned with the rotation axis, both analytic considerations and numerical simulations have shown that the formation of a large, 10{sup 2} AU scale, rotationally supported protostellar disk is suppressed by magnetic braking in the ideal MHD limit for a realistic level of core magnetization. This theoretical difficulty in forming protostellar disks is termed the ''magnetic braking catastrophe''. A possible resolution to this problem, proposed by Hennebelle and Ciardi and Joos et al., is that misalignment between the magnetic field and rotation axis may weaken the magnetic braking enough to enable disk formation. We evaluate this possibility quantitatively through numerical simulations. We confirm the basic result of Joos et al. that the misalignment is indeed conducive to disk formation. In relatively weakly magnetized cores with dimensionless mass-to-flux ratio {approx}> 4, it enabled the formation of rotationally supported disks that would otherwise be suppressed if the magnetic field and rotation axis are aligned. For more strongly magnetized cores, disk formation remains suppressed, however, even for the maximum tilt angle of 90 Degree-Sign . If dense cores are as strongly magnetized as indicated by OH Zeeman observations (with a mean dimensionless mass-to-flux ratio {approx}2), it would be difficult for the misalignment alone to enable disk formation in the majority of them. We conclude that, while beneficial to disk formation, especially for the relatively weak field case, misalignment does not completely solve the problem of catastrophic magnetic braking in general.

Li Zhiyun [Astronomy Department, University of Virginia, Charlottesville, VA (United States); Krasnopolsky, Ruben; Shang, Hsien [Academia Sinica, Theoretical Institute for Advanced Research in Astrophysics, Taipei, Taiwan (China)

2013-09-01T23:59:59.000Z

119

THE BRAKING INDEX OF PSR J1734-3333 AND THE MAGNETAR POPULATION  

SciTech Connect (OSTI)

PSR J1734-3333 is a radio pulsar rotating with a period P = 1.17 s and slowing down with a period derivative P-dot =2.28x10{sup -12}, the third largest among rotation-powered pulsars. These properties are midway between those of normal rotation-powered pulsars and magnetars, two populations of neutron stars that are notably different in their emission properties. Here we report on the measurement of the second period derivative of the rotation of PSR J1734-3333 and calculate a braking index n = 0.9 {+-} 0.2. This value is well below 3, the value expected for an electromagnetic braking due to a constant magnetic dipole, and indicates that this pulsar may soon have the rotational properties of a magnetar. While there are several mechanisms that could lead to such a low braking index, we discuss this observation, together with the properties exhibited by some other high- P-dot rotation-powered pulsars, and interpret it as evidence of a possible evolutionary route for magnetars through a radio-pulsar phase, supporting a unified description of the two classes of the object.

Espinoza, C. M.; Lyne, A. G. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom); Kramer, M. [MPI fuer Radioastronomie, Auf dem Huegel 69, 53121 Bonn (Germany); Manchester, R. N. [Australia Telescope National Facility, CSIRO Astronomy and Space Science, Epping, NSW 1710 (Australia); Kaspi, V. M., E-mail: cme@jb.man.ac.uk [Department of Physics, McGill University, Montreal, QC H3A 2T8 (Canada)

2011-11-01T23:59:59.000Z

120

Traction Drive Inverter Cooling with Submerged Liquid Jet Impingement on Microfinned Enhanced Surfaces (Presentation)  

SciTech Connect (OSTI)

Jet impingement is one means to improve thermal management for power electronics in electric-drive traction vehicles. Jet impingement on microfin-enhanced surfaces further augments heat transfer and thermal performance. A channel flow heat exchanger from a commercial inverter was characterized as a baseline system for comparison with two new prototype designs using liquid jet impingement on plain and microfinned enhanced surfaces. The submerged jets can target areas with the highest heat flux to provide local cooling, such as areas under insulated-gate bipolar transistors and diode devices. Low power experiments, where four diodes were powered, dissipated 105 W of heat and were used to validate computational fluid dynamics modeling of the baseline and prototype designs. Experiments and modeling used typical automotive flow rates using water-ethylene glycol as a coolant (50%-50% by volume). The computational fluid dynamics model was used to predict full inverter power heat dissipation. The channel flow and jet impingement configurations were tested at full inverter power of 40 to 100 kW (output power) on a dynamometer, translating to an approximate heat dissipation of 1 to 2 kW. With jet impingement, the cold plate material is not critical for the thermal pathway. A high-temperature plastic was used that could eventually be injection molded or formed, with the jets formed from a basic aluminum plate with orifices acting as nozzles. Long-term reliability of the jet nozzles and impingement on enhanced surfaces was examined. For jet impingement on microfinned surfaces, thermal performance increased 17%. Along with a weight reduction of approximately 3 kg, the specific power (kW/kg) increased by 36%, with an increase in power density (kW/L) of 12% compared with the baseline channel flow configuration.

Waye, S.; Narumanchi, S.; Moreno, G.

2014-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Design Principles of a flywheel Regenerative Braking System (f-RBS) for Formula SAE type racecar and system testing on a Virtual Test Rig modeled on MSC ADAMS  

E-Print Network [OSTI]

momentum in the industry [4]. These vehicles (BEVs and HEVS) use electric motor/generator pairs to propel themselves and to recapture braking energy (electric RBS) and the power source is the battery. The regenerative braking system uses a generator..., aerodynamic and road losses. 4. Improvised Transmission design to reduce losses. 5. Hybrid and Alternative Energy Propulsion systems e.g. the Hybrid Electric Vehicle (HEV), the Fuel Cell Vehicle (FCV). 6. Recycling Braking energy Storage and reuse...

Pochiraju, Anirudh

2012-08-31T23:59:59.000Z

122

Personal equipment for low seam coal miners. 8. Improved traction rubber boot soles. Report for 1978-82  

SciTech Connect (OSTI)

Based on laboratory and preliminary field tests of off-the-shelf steel-toed rubber boots, a molded sole design was developed to provide increased traction over conventional calendared sole miners boots. The pattern provided sharp edges perpendicular to both lateral and fore-aft slip vectors. The sole was designed to reduce mud caking. An instep lace-up capability was added to better secure the foot inside the boot. A 5-month field evaluation compared the prototype boots to the boots the participants usually wear.

Sanders, M.S.; Downing, J.V.

1982-10-01T23:59:59.000Z

123

Thermo-mechanical characterization of nano filled and fiber reinforced brake friction materials  

Science Journals Connector (OSTI)

Brake friction materials filled with multiwalled carbon nanotubes (MWCNT) and nanoclay have been fabricated and characterize for thermo-mechanical properties. Thermo gravimetric analysis (TGA) show that the stability of the friction composites increased with increase in MWCNT and nanoclay contents. Dynamic mechanical analysis (DMA) of the composite have been carried out to characterize the storage modulus (E?) loss modulus (E?) and damping factor (Tan ?) as a function of temperature. The storage and loss modulus show a maxima at lower content of MWCNT and nanoclay.

2013-01-01T23:59:59.000Z

124

A performance evaluation of an automotive magnetorheological brake design with a sliding mode controller  

E-Print Network [OSTI]

industries due to its potential to improve vehicle perfor- mance, safety and cost. The ``x'' in x Engineering, University of Victoria, 3800 Finnerty Road, P.O. Box 3055 STN CSC, Victoria, BC, Canada V8W 3P6 flow and heat transfer analysis. The performance of the MRB in a vehicle was studied using a quarter

Park, Edward

125

Fault detection and diagnosis within a wind turbine mechanical braking system using condition monitoring  

Science Journals Connector (OSTI)

Renewable energy sources have a key role to play in the global energy mix as a means of reducing the impact of energy production on climate change. Wind energy is the most developed of all renewable energy technologies with more than 200GW of globally installed capacity as of 2011. Analyses of wind farm maintenance costs show that up to 40% of the outlay is related to unexpected component failures that lead to costly unscheduled amendments. Wind farm operators are constantly looking for new technological developments in condition monitoring that can contribute to the minimisation of wind turbine maintenance expenditure. Early fault detection through condition monitoring can help prevent major breakdowns as well as significantly decrease associated costs. Moreover it enables the optimisation of maintenance schedules, reduces downtime, increases asset availability and enhances safety and operational reliability. Faults in the braking system are of particularly concern since they can result in catastrophic failure of the wind turbine. The present study investigates online condition monitoring based on voltages and currents for mechanical wind turbine brake system fault diagnosis.

M. Entezami; S. Hillmansen; P. Weston; M.Ph. Papaelias

2012-01-01T23:59:59.000Z

126

Rotational evolution of the Crab pulsar in the wind braking model  

E-Print Network [OSTI]

The pulsar wind model is updated by considering the effect of particle density and pulsar death. It can describe both the short term and long term rotational evolution of pulsars consistently. It is applied to model the rotational evolution of the Crab pulsar. The pulsar is spun down by a combination of magnetic dipole radiation and particle wind. The parameters of the Crab pulsar, including magnetic field, inclination angle, and particle density are calculated. The particle density in acceleration region is about 10^3 times the Goldreich-Julian charge density. The lower braking index between glitches is due to a larger particle density. This may be glitch induced magnetospheric activities in normal pulsars. Evolution of braking index and the Crab pulsar in P-Pdot diagram are calculated. The Crab pulsar will evolve from magnetic dipole radiation dominated case towards particle wind dominated case. Considering the effect of pulsar "death", the Crab pulsar (and other normal pulsars) will not evolve to the clust...

Kou, F F

2015-01-01T23:59:59.000Z

127

Evaluation of a Current Source Active Power Filter to Reduce the DC Bus Capacitor in a Hybrid Electric Vehicle Traction Drive  

E-Print Network [OSTI]

Electric Vehicle Traction Drive Shengnan Li Student Member, IEEE The University of Tennessee Department Science Knoxville, TN, 37996, USA tolbert@utk.edu Abstract ­ In hybrid electric vehicles (HEV), a battery-source inverter, dc bus capacitor, Electric vehicle, Harmonic current, Hybrid electric vehicle. I. INTRODUCTION

Tolbert, Leon M.

128

What is about future high speed power line communication systems for in-vehicles networks ?  

E-Print Network [OSTI]

by car manufacturers to fulfil the different communications between electronic control units (ECU related to the steering, traction, braking system (ABS), Electronic Stability Program (ESP), Electric of splicing that is necessary, as well as simplify and lighten the cable bundles The HomePlug Powerline

Paris-Sud XI, Université de

129

Yaw stability control design through a mixed sensitivity approach V. Cerone, M. Milanese, D. Regruto  

E-Print Network [OSTI]

which aims at enhancing the vehicle yaw stability is the Vehicle Dynamics Control system (VDC). Indeed systems is to compensate for the driver's inadequacy and generate a control yaw moment through either steering or braking control inputs or both. VDC system directly controls yaw moment by generating

Regruto, Diego

130

Simplified Sensorless Control for BLDC Motor, Using DSP Technology Juan W. Dixon, Matas Rodrguez and Rodrigo Huerta  

E-Print Network [OSTI]

(BLDC) motor for electric vehicle applications. To control this machine it is generally required: electric drive, brushless motor, control system, drive. 1. Introduction In electric traction, like in other applications, a wide range in speed and torque control for the electric motor is desired. The DC machine

Catholic University of Chile (Universidad Católica de Chile)

131

Use of an auditory signal in a rear-end collision warning system: effects on braking force and reaction time  

E-Print Network [OSTI]

driving game. Superimposed on the game screen was the image of a car which appeared to the driver to be ahead of him/her. The image enlarged in size, appearing to be a car applying its brakes. The participant was instructed to react as he would in a real...

Hopkins, Jennifer Susan

1995-01-01T23:59:59.000Z

132

VEHICLE DYNAMICS CONTROL WITH ROLLOVER PREVENTION FOR ARTICULATED HEAVY TRUCKS  

E-Print Network [OSTI]

in controlling vehicle yaw response. In this paper, a VDC system that improves yaw, lateral, and roll stability. The Vehicle Dynamics Control system (VDC) actively brakes individual wheels to directly influence vehicle yaw to generate a stabilizing yaw moment. VDC systems are typically designed so that application of differential

Peng, Huei

133

VEHICLE SPECIFICATIONS Vehicle Features Base Vehicle: 2010 Honda  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Honda Honda Civic Hybrid VIN: JHMFA3F24AS005577 Seatbelt Positions: 5 Standard Features: Air Conditioning Power Locks Power Steering Power Brakes Power Windows Cruise Control Front Disc Brakes Rear Disc Brakes Front Wheel Drive Regenerative Braking Anti-Lock Brakes Traction Control Air Bags AM/FM Stereo with CD State of Charge Meter 1 Weights Design Curb Weight: 2877 lb Delivered Curb Weight: 2982 lb Distribution F/R (%): 57/43 GVWR: 3792 lb GAWR F/R: 1973/1841 lb Payload 2 : 810 lb Performance Goal: 400 lb Dimensions Wheelbase: 106.3 in Track F/R: 59.1/60.2 in Length: 177.3 in Width: 69.0 in Height: 56.3 in Ground Clearance: 6.0 in Performance Goal: 5.0 in Tires Manufacturer: Bridgestone

134

Multi-Stage Converters: A New Technology for Traction Drive Juan W. Dixon  

E-Print Network [OSTI]

demonstrated the feasibility to build multi-stage converters for real electric vehicles or electric buses of electric vehicles. On the other hand, the PWM techniques used today to control modern static converters of Electrical Engineering Pontificia Universidad Católica de Chile Felipe Ríos, and Alberto Bretón Department

Catholic University of Chile (Universidad Católica de Chile)

135

Mono inverter Multi parallel PMSM -Structure and Control strategy  

E-Print Network [OSTI]

a new and original Mono inverter Multi parallel Permanent Magnet Synchronous Motor (PMSM) systemMono inverter Multi parallel PMSM - Structure and Control strategy Damien Bidarta , Maria Pietrzak, braking system...). However, a MMS with machines operating independently needs a high number of power

Boyer, Edmond

136

Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains  

E-Print Network [OSTI]

Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains Wilhelm Peters, Tobias Huber, Joachim Böcker Power Electronics and Electrical Drives, Paderborn automotive traction drives are a wide speed range, a wide constant-power operation range and high efficiency

Paderborn, Universität

137

A MODEL OF MAGNETIC BRAKING OF SOLAR ROTATION THAT SATISFIES OBSERVATIONAL CONSTRAINTS  

SciTech Connect (OSTI)

The model of magnetic braking of solar rotation considered by Charbonneau and MacGregor has been modified so that it is able to reproduce for the first time the rotational evolution of both the fastest and slowest rotators among solar-type stars in open clusters of different ages, without coming into conflict with other observational constraints, such as the time evolution of the atmospheric Li abundance in solar twins and the thinness of the solar tachocline. This new model assumes that rotation-driven turbulent diffusion, which is thought to amplify the viscosity and magnetic diffusivity in stellar radiative zones, is strongly anisotropic with the horizontal components of the transport coefficients strongly dominating over those in the vertical direction. Also taken into account is the poloidal field decay that helps to confine the width of the tachocline at the solar age. The model's properties are investigated by numerically solving the azimuthal components of the coupled momentum and magnetic induction equations in two dimensions using a finite element method.

Denissenkov, Pavel A., E-mail: pavel.denisenkov@gmail.co [Department of Physics and Astronomy, University of Victoria, P.O. Box 3055, Victoria, B.C., V8W 3P6 (Canada)

2010-08-10T23:59:59.000Z

138

An automated virtual tool to compute the entire set of proportional integral derivative controllers for a continuous linear time invariant system  

E-Print Network [OSTI]

being widely used in both the industry and the academia alike. The GUI was then used in an application for designing PID controllers of High Speed Flywheel for Traction Applications [5]. B. Organization of Thesis In the following part of the thesis many... being widely used in both the industry and the academia alike. The GUI was then used in an application for designing PID controllers of High Speed Flywheel for Traction Applications [5]. B. Organization of Thesis In the following part of the thesis many...

Narasimhan, Bharat

2008-10-10T23:59:59.000Z

139

An automated virtual tool to compute the entire set of proportional integral derivative controllers for a continuous linear time invariant system  

E-Print Network [OSTI]

being widely used in both the industry and the academia alike. The GUI was then used in an application for designing PID controllers of High Speed Flywheel for Traction Applications [5]. B. Organization of Thesis In the following part of the thesis many... being widely used in both the industry and the academia alike. The GUI was then used in an application for designing PID controllers of High Speed Flywheel for Traction Applications [5]. B. Organization of Thesis In the following part of the thesis many...

Narasimhan, Bharat

2009-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

A Soft-Switching Inverter for High-Temperature Advanced Hybrid Electric Vehicle Traction Motor Drives  

SciTech Connect (OSTI)

The state-of-the-art hybrid electric vehicles (HEVs) require the inverter cooling system to have a separate loop to avoid power semiconductor junction over temperatures because the engine coolant temperature of 105?C does not allow for much temperature rise in silicon devices. The proposed work is to develop an advanced soft-switching inverter that will eliminate the device switching loss and cut down the power loss so that the inverter can operate at high-temperature conditions while operating at high switching frequencies with small current ripple in low inductance based permanent magnet motors. The proposed tasks also include high-temperature packaging and thermal modeling and simulation to ensure the packaged module can operate at the desired temperature. The developed module will be integrated with the motor and vehicle controller for dynamometer and in-vehicle testing to prove its superiority. This report will describe the detailed technical design of the soft-switching inverters and their test results. The experiments were conducted both in module level for the module conduction and switching characteristics and in inverter level for its efficiency under inductive and dynamometer load conditions. The performance will be compared with the DOE original specification.

None, None

2012-01-31T23:59:59.000Z

142

2286 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 6, JUNE 2008 Modeling, Analysis, and Neural Network Control  

E-Print Network [OSTI]

dynamics and stability when there are no differential gears. Using two in-wheel electric motors makes), induction motor, neural networks, speed estimation, traction control. I. INTRODUCTION RECENTLY, electric attractive potential. Since electric motors and inverters are utilized in drive systems, they have great

Paris-Sud XI, Université de

143

Computer controlled synchronous shifting of an automatic transmission  

DOE Patents [OSTI]

A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect the ring gear to the planetary carrier of a second gear set. Reverse drive and regenerative operation result when an hydraulic brake fixes the planetary and the direction of power flow is reversed. Various sensors produce signals representing the torque at the output of the transmission or drive wheels, the speed of the power source, and the hydraulic pressure applied to a clutch and brake. A control algorithm produces input data representing a commanded upshift, a commanded downshift, a commanded transmission output torque, and commanded power source speed. A microprocessor processes the inputs and produces a response to them in accordance with the execution of a control algorithm. Output or response signals cause selective engagement and disengagement of the clutch and brake at a rate that satisfies the requirements for a short gear ratio change and smooth torque transfer between the friction elements.

Davis, Roy I. (9214 Abbey La., Ypsilanti, MI 48198); Patil, Prabhakar B. (10294 W. Outer Dr., Detroit, MI 48223)

1989-01-01T23:59:59.000Z

144

VEHICLE SPECIFICATIONS Vehicle Features Base Vehicle: 2010 Smart  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Smart Smart Fortwo MHD VIN: WME4513341K406476 Seatbelt Positions: 2 Standard Features: Air Conditioning Power Locks Power Steering Power Brakes Power Windows Cruise Control Front Disc Brakes Rear Drum Brakes Rear Wheel Drive Anti-Lock Brakes Traction Control Air Bags AM/FM Stereo with CD player Weights Design Curb Weight:1,818 lb Delivered Curb Weight: 1.742 lb Distribution F/R (%):44/56 GVWR: 2,244 lb GAWR F/R: 968/1,452 lb Payload 1 : 426 lb Performance Goal: 400 lb Dimensions Wheelbase: 73.5 in Track F/R: 50.5/54.5 in Length: 106.1 in Width: 61.4 in Height: 60.7 in Ground Clearance: 6.25 in Performance Goal: 5.0 in Tires Manufacturer: Continental Model: ContiproContact Size: Front -P155/60/R15

145

VEHICLE SPECIFICATIONS Vehicle Features  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mazda 3 Mazda 3 VIN: JMZBLA4G601111865 Seatbelt Positions: 5 Standard Features: Air Conditioning Power Locks Power Steering Power Brakes Power Windows Cruise Control Front Disc Brakes Rear Disc Brakes Front Wheel Drive Anti-Lock Brakes Traction Control Air Bags AM/FM Stereo with CD Weights Design Curb Weight: 2,954 lb Delivered Curb Weight: 2,850 lb Distribution F/R (%): 63/37 GVWR: 4,050 lb GAWR F/R: 2,057/1,896 lb Payload 1 : 1,096 lb Performance Goal: 400 lb Dimensions Wheelbase: 103.9 in Track F/R: 60.4/59.8 in Length: 175.6 in Width: 69.1 in Height: 57.9 in Ground Clearance: 6.1 in Performance Goal: 5.0 in Tires Manufacturer: Yokohama Model: YK520 Size: P205/55R17 Pressure F/R: 35/33 psi

146

Traction Drive System Modeling  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

147

Hybrid powertrain controller  

DOE Patents [OSTI]

A hybrid powertrain for a vehicle comprising a diesel engine and an electric motor in a parallel arrangement with a multiple ratio transmission located on the torque output side of the diesel engine, final drive gearing connecting drivably the output shaft of transmission to traction wheels of the vehicle, and an electric motor drivably coupled to the final drive gearing. A powertrain controller schedules fuel delivered to the diesel engine and effects a split of the total power available, a portion of the power being delivered by the diesel and the balance of the power being delivered by the motor. A shifting schedule for the multiple ratio transmission makes it possible for establishing a proportional relationship between accelerator pedal movement and torque desired at the wheels. The control strategy for the powertrain maintains drivability of the vehicle that resembles drivability of a conventional spark ignition vehicle engine powertrain while achieving improved fuel efficiency and low exhaust gas emissions.

Jankovic, Miroslava (Birmingham, MI); Powell, Barry Kay (Belleville, MI)

2000-12-26T23:59:59.000Z

148

PS3060: Perception and Action (L.3) Driving a vehicle: control of heading,  

E-Print Network [OSTI]

1 PS3060: Perception and Action (L.3) Driving a vehicle: control of heading, collision avoidance 11, 12 of Bruce, Green & Georgeson 2003) · the ecological approach to vision: from insects to humans · collision: judging time to impact, braking a vehicle · heading: how you know in which direction you

Zanker, Johannes M.

149

Hydraulic Drivetrain and Regenerative Braking Team 13: Andrew Brown, Karan Desai, Andrew McGrath, Hurst Nuckols, Grant Wilson Adviser: Dr. Andrew Jackson  

E-Print Network [OSTI]

. The main components of the model include an electric motor, hydraulic pump, hydraulic motor and two 1 flow during regenerative braking Electric Motor: Provides rotational energy to the hydraulic drivetrain (% kinetic energy recovered) 24.73% Drivetrain Efficiency 67.02% Overall Efficiency 53.47% Current Electric

Carpick, Robert W.

150

Design and test of a wet type helium turbo-expander with an alternator as a brake  

SciTech Connect (OSTI)

A wet type helium turbo-expander with expected adiabatic efficiency of 70% at inlet pressure, temperature, and outlet pressure of 1.3 MPa, 6.0 K, and 0.2 MPa, respectively, has been developed. An alternator is adopted as a brake where a permanent magnet is held in the turbine shaft. And a self-acting gas bearing is used at thrust and journal bearings. An electromagnet supports thrust bearing to lift up the thrust disk when initiating operation. Design mass flow rate of the turbine is determined to be 60 g/s, corresponding to the JT mass flow rate in the existing helium liquefier/refrigerator. In the cryogenic performance test, the turbine had increased helium liquefaction rate by four times larger than the liquefaction rate without turbine operation.

Kato, T.; Miyake, A.; Kawano, K.; Hamada, K.; Hiyama, T.; Iwamoto, S.; Ebisu, H.; Tsuji, H. [Japan Atomic Energy Research Institute, Ibaraki-ken (Japan); Saji, N.; Kaneko, Y. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)] [and others

1994-12-31T23:59:59.000Z

151

Performance of Networked Control Systems under Sporadic Feedback  

E-Print Network [OSTI]

Regenerative Braking power inverter storage Micro-Grid Renewable Generation PHEV Smart Grid - Distributed

Lemmon, Michael

152

High-Performance Control of Two Three-Phase Permanent-Magnet Synchronous Machines in an Integrated Drive for Automotive Applications  

SciTech Connect (OSTI)

The closed-loop control of an integrated dual AC drive system is presented to control two three-phase permanent-magnet motors. A five-leg inverter is employed in the drive system; three of the inverter legs are for a main traction motor, but only two are needed for a three-phase auxiliary motor by utilizing the neutral point of the traction motor. An integrated drive with reduced component count is therefore achieved by eliminating one inverter leg and its gate drivers. A modified current control scheme based on the rotor flux orientation principle is presented. Simulation and experimental results are included to verify the independent control capability of the integrated drive.

Tang, Lixin [ORNL; Su, Gui-Jia [ORNL

2008-01-01T23:59:59.000Z

153

Double acting stirling engine phase control  

DOE Patents [OSTI]

A mechanical device for effecting a phase change between the expansion and compression volumes of a double-acting Stirling engine uses helical elements which produce opposite rotation of a pair of crankpins when a control rod is moved, so the phase between two pairs of pistons is changed by +.psi. and the phase between the other two pairs of pistons is changed by -.psi.. The phase can change beyond .psi.=90.degree. at which regenerative braking and then reversal of engine rotation occurs.

Berchowitz, David M. (Scotia, NY)

1983-01-01T23:59:59.000Z

154

To brake or to accelerate? Safety effects of combined speed and red light cameras  

Science Journals Connector (OSTI)

AbstractIntroduction The present study evaluates the traffic safety effect of combined speed and red light cameras at 253 signalized intersections in Flanders, Belgium that were installed between 2002 and 2007. Method The adopted approach is a before-and-after study with control for the trend. Results The analyses showed a non-significant increase of 5% in the number of injury crashes. An almost significant decrease of 14% was found for the more severe crashes. The number of rear-end crashes turned out to have increased significantly (+44%), whereas a non-significant decrease (?6%) was found in the number of side crashes. The decrease for the severe crashes was mainly attributable to the effect on side crashes, for which a significant decrease of 24% was found. Practical Applications It is concluded that combined speed and red light cameras have a favorable effect on traffic safety, in particular on severe crashes. However, future research should examine the circumstances of rear-end crashes and how this increase can be managed.

Ellen De Pauw; Stijn Daniels; Tom Brijs; Elke Hermans; Geert Wets

2014-01-01T23:59:59.000Z

155

Control of Two Permanent Magnet Machines Using a Five-Leg Inverter for Automotive Applications  

SciTech Connect (OSTI)

This paper presents digital control schemes for control of two permanent magnet (PM) machines in an integrated traction and air-conditioning compressor drive system for automotive applications. The integrated drive system employs a five-leg inverter to power a three-phase traction PM motor and a two-phase compressor PM motor by tying the common terminal of the two-phase motor to the neutral point of the three-phase motor. Compared to a three-phase or a standalone two-phase inverter, it eliminates one phase leg and shares the control electronics between the two drives, thus significantly reducing the component count of the compressor drive. To demonstrate that the speed and torque of the two PM motors can be controlled independently, a control strategy was implemented in a digital signal processor, which includes a rotor flux field orientation based control (RFOC) for the three-phase motor, a similar RFOC and a position sensorless control in the brushless dc (BLDC) mode for the two-phase motor. Control implementation issues unique to a two-phase PM motor are also discussed. Test results with the three-phase motor running in the ac synchronous (ACS) mode while the two-phase motor either in the ACS or the BLDC mode are included to verify the independent speed and torque control capability of the integrated drive.

Su, Gui-Jia [ORNL; Tang, Lixin [ORNL; Huang, Xianghui [GE Global Research

2006-01-01T23:59:59.000Z

156

Gas cooled traction drive inverter  

SciTech Connect (OSTI)

The present invention provides a modular circuit card configuration for distributing heat among a plurality of circuit cards. Each circuit card includes a housing adapted to dissipate heat in response to gas flow over the housing. In one aspect, a gas-cooled inverter includes a plurality of inverter circuit cards, and a plurality of circuit card housings, each of which encloses one of the plurality of inverter cards.

Chinthavali, Madhu Sudhan

2013-10-08T23:59:59.000Z

157

On fuel-optimal velocity control of a motor vehicle  

Science Journals Connector (OSTI)

This paper presents the motor vehicle velocity control that, under certain well-defined conditions, ensures a minimum fuel consumption. To this purpose, a vehicle with a stepped mechanical transmission is considered, assuming that the gear is unchanged during the movement. The optimal control problem is formulated for different cases and solved by applying Pontryagin's maximum principle. Whenever there is a singular solution, it is shown to correspond to the uniform motion law. The optimal velocity controls include the following phases that may be combined in different ways: deceleration without engine shut-off (null engine power), strong decelerative braking, constant speed movement and full-throttle acceleration. Examples are presented by using the experimental data on engine fuel consumption. The stress falls on the significant reductions in fuel consumption that can be achieved compared to uniform motion.

A.P. Stoicescu

1995-01-01T23:59:59.000Z

158

Upper and lower limits on the Crab pulsar's astrophysical parameters set from gravitational wave observations by LIGO: braking index and energy considerations  

E-Print Network [OSTI]

The Laser Interferometer Gravitational Observatory (LIGO) has recently reached the end of its fifth science run (S5), having collected more than a year worth of data. Analysis of the data is still ongoing but a positive detection of gravitational waves, while possible, is not realistically expected for most likely sources. This is particularly true for what concerns gravitational waves from known pulsars. In fact, even under the most optimistic (and not very realistic) assumption that all the pulsar's observed spin-down is due to gravitational waves, the gravitational wave strain at earth from all the known isolated pulsars (with the only notable exception of the Crab pulsar) would not be strong enough to be detectable by existing detectors. By August 2006, LIGO had produced enough data for a coherent integration capable to extract signal from noise that was weaker than the one expected from the Crab pulsar's spin-down limit. No signal was detected, but beating the spin-down limit is a considerable achievement for the LIGO Scientific Collaboration (LSC). It is customary to translate the upper limit on strain from a pulsar into a more astrophysically significant upper limit on ellipticity. Once the spin-down limit has been beaten, it is possible to release the constraint that all the spin-down is due to gravitational wave emission. A more complete model with diverse braking mechanisms can be used to set limits on several astrophysical parameters of the pulsar. This paper shows possible values of such parameters for the Crab pulsar given the current limit on gravitational waves from this neutron star.

Giovanni Santostasi

2008-07-16T23:59:59.000Z

159

Reactivity Controlled Compression Ignition (RCCI) Combustion on a Multi-Cylinder Light-Duty Diesel Engine  

SciTech Connect (OSTI)

Reactivity controlled compression ignition is a low-temperature combustion technique that has been shown, both in computational fluid dynamics modeling and single-cylinder experiments, to obtain diesel-like efficiency or better with ultra-low nitrogen oxide and soot emissions, while operating primarily on gasoline-like fuels. This paper investigates reactivity controlled compression ignition operation on a four-cylinder light-duty diesel engine with production-viable hardware using conventional gasoline and diesel fuel. Experimental results are presented over a wide speed and load range using a systematic approach for achieving successful steady-state reactivity controlled compression ignition combustion. The results demonstrated diesel-like efficiency or better over the operating range explored with low engine-out nitrogen oxide and soot emissions. A peak brake thermal efficiency of 39.0% was demonstrated for 2600 r/min and 6.9 bar brake mean effective pressure with nitrogen oxide emissions reduced by an order of magnitude compared to conventional diesel combustion operation. Reactivity controlled compression ignition emissions and efficiency results are compared to conventional diesel combustion operation on the same engine.

Curran, Scott [ORNL; Hanson, Reed M [ORNL; Wagner, Robert M [ORNL

2012-01-01T23:59:59.000Z

160

Efficient high density train operations  

DOE Patents [OSTI]

The present invention provides methods for preventing low train voltages and managing interference, thereby improving the efficiency, reliability, and passenger comfort associated with commuter trains. An algorithm implementing neural network technology is used to predict low voltages before they occur. Once voltages are predicted, then multiple trains can be controlled to prevent low voltage events. Further, algorithms for managing inference are presented in the present invention. Different types of interference problems are addressed in the present invention such as "Interference. During Acceleration", "Interference Near Station Stops", and "Interference During Delay Recovery." Managing such interference avoids unnecessary brake/acceleration cycles during acceleration, immediately before station stops, and after substantial delays. Algorithms are demonstrated to avoid oscillatory brake/acceleration cycles due to interference and to smooth the trajectories of closely following trains. This is achieved by maintaining sufficient following distances to avoid unnecessary braking/accelerating. These methods generate smooth train trajectories, making for a more comfortable ride, and improve train motor reliability by avoiding unnecessary mode-changes between propulsion and braking. These algorithms can also have a favorable impact on traction power system requirements and energy consumption.

Gordon, Susanna P. (Oakland, CA); Evans, John A. (Hayward, CA)

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Reinforcement learning of dynamic collaborative driving Part II: lateral adaptive control  

Science Journals Connector (OSTI)

In dynamic collaborative driving, multiple vehicles coordinate their motion to optimise road usage using shared information. The basic prerequisites for a vehicle participating in dynamic collaborative driving are longitudinal and lateral control. This paper focuses on the lateral vehicle control on which higher-level manoeuvres such as entering or exiting a formation are based. Each vehicle involved is a composite nonlinear system powered by an internal combustion engine, equipped with automatic transmission, rolling on rubber tyres with hydraulic braking systems and steering system. A vehicle model is introduced which serves as the control system design platform. A lateral adaptive preview control system which uses Monte Carlo Reinforcement Learning (RL) is introduced. The results of the RL phase and the performance of the adaptive preview control system for a single automobile as well as the performance in a multi-vehicle platoon are presented.

Luke Ng; Christopher M. Clark; Jan Paul Huissoon

2008-01-01T23:59:59.000Z

162

Reinforcement learning of dynamic collaborative driving Part I: longitudinal adaptive control  

Science Journals Connector (OSTI)

Dynamic collaborative driving involves the motion coordination of multiple vehicles using shared information from vehicles instrumented to perceive their surroundings in order to improve road usage and safety. A basic requirement of any vehicle participating in dynamic collaborative driving is longitudinal control. Without this capability, higher-level coordination is not possible. Each vehicle involved is a composite non-linear system powered by an internal combustion engine, equipped with automatic transmission, rolling on rubber tyres with a hydraulic braking system. This paper focuses on the problem of longitudinal motion control. A longitudinal vehicle model is introduced which serves as the control system design platform. A longitudinal adaptive control system that uses Monte Carlo Reinforcement Learning (RL) is introduced. The results of the RL phase and the performance of the adaptive control system for a single automobile, as well as the performance in a multi-vehicle platoon, are presented.

Luke Ng; Christopher M. Clark; Jan Paul Huissoon

2008-01-01T23:59:59.000Z

163

Remote control of an agricultural tractor in SAE field upset tests  

Science Journals Connector (OSTI)

Research by the National Institute for Occupational Safety and Health (NIOSH), Division of Safety Research in Morgantown, West Virginia is addressing the problem of injuries due to agricultural tractor rollovers, and improvements to rollover protective structures (ROPS). As part of this research, the NIOSH, Pittsburgh Research Laboratory modified a Ford model 4600 agricultural tractor for remote control operation, and used this tractor to conduct SAE field upset tests. Modifications to the tractor involved installing a protective framework, electrical actuators for fuel, brake, clutch, and steering controls, and a radio link for remote operation. The tractor has been used to complete over 30 total side and back upset tests, with no failures of the remote control system. These tests have allowed NIOSH researchers to study the performance of currently available ROPS, use this information for the development of improved ROPS designs, and test a NIOSH-developed prototype automatically deploying ROPS.

T.J. Lutz; G.T. Homce

2004-01-01T23:59:59.000Z

164

Permanent Magnet Development for Automotive Traction Motors  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

165

Permanent Magnet Development for Automotive Traction Motors  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

166

Permanent Magnet Development for Automotive Traction Motors  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

167

Permanent Magnet Development for Automotive Traction Motors  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

168

High Power Density Integrated Traction Machine Drive  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

169

Thermal Modelling of Powerful Traction Battery Charger  

Science Journals Connector (OSTI)

In this paper, the author presents survey of the modern approaches in the thermal analysis of power electronic systems. The improvement and the new methods are applied to the real engineering problem. The ther...

R. Vlach

2012-01-01T23:59:59.000Z

170

Air-Cooled Traction Drive Inverter  

Broader source: Energy.gov (indexed) [DOE]

the high temperature operating capability of wide bandgap (WBG) devices. New low-loss Si IGBTs. Innovative heat sink design minimizes the thermal resistance. Fewer...

171

Advanced Integrated Electric Traction System | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

"Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland. merit08smith.pdf More Documents & Publications Advnaced Power Electronics and Electric Machines...

172

Air-Cooled Traction Drive Inverter  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

173

AVESTAR® - Control  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Control Control AVESTAR control system efforts are focused on development of computational approaches for simulation and advanced controls for energy systems. Power generation technologies are growing more sophisticated and require control strategies and systems to be updated to allow plant owners to take full advantage of their increased capabilities. A well designed control system can provide the ability to hit and maintain setpoints without oscillation for optimum power plant operation. Implementation of complex control systems developed through advanced computational approaches will increase efficiency and reduce emissions. The AVESTAR team is focusing on the following three areas of process control research: 1) Plant-wide control system design, 2) Advanced regulatory control, and 3) Advanced process control. Process control models, methods, and tools are developed and applied to a wide variety of energy systems ranging from smart plant to smart grid.

174

GDI+ Controls  

Science Journals Connector (OSTI)

Owner-drawn controls...are one of the most ambitious projects a developer can undertake. This is not because they are conceptually tricky, but because a moderately sophisticated control needs a great...

Matthew MacDonald

2002-01-01T23:59:59.000Z

175

Project Controls  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Project controls are systems used to plan, schedule, budget, and measure the performance of a project/program. The cost estimation package is one of the documents that is used to establish the baseline for project controls. This chapter gives a brief description of project controls and the role the cost estimation package plays.

1997-03-28T23:59:59.000Z

176

Institutional Controls  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Institutional Controls Institutional Controls Many major Federal laws (e.g., Atomic Energy Act (AEA), Resource Conservation Recovery Act (RCRA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)), Executive Orders, regulations and various other drivers influence the use of institutional controls at DOE sites. Some drivers directly authorize or require the use of institutional controls, while others do not. DOE also uses institutional controls when no specific statutory requirement exists to supplement active remediation, pollution control, public and resource protection, and physical security, or to bolster the integrity of engineered remedies. DOE and its predecessor agencies have conducted activities for over 50 years, using land ownership and access control, environmental monitoring and surveillance, and other tools to support protection efforts at operational and inactive facilities, including radioactive waste burial grounds.

177

The hypothalamicpituitaryadrenalleptin axis and metabolic health: a systems approach to resilience, robustness and control  

Science Journals Connector (OSTI)

...or our approximation of the CAR and the obese phenotype. Higher...feedback signalling (i.e. a defective brake), quantified by dynamic...as the brake is removed, the car speeds forward). Leptin has...cortisol awakening response (CAR) across the female menstrual...

2014-01-01T23:59:59.000Z

178

Load Control  

Broader source: Energy.gov (indexed) [DOE]

Visualization and Controls Peer Review Visualization and Controls Peer Review Load Control for System Reliability and Measurement-Based Stability Assessment Dan Trudnowski, PhD, PE Montana Tech Butte, MT 59701 dtrudnowski@mtech.edu 406-496-4681 October 2006 2 Presentation Outline * Introduction - Goals, Enabling technologies, Overview * Load Control - Activities, Status * Stability Assessment - Activities, Status * Wrap up - Related activities, Staff 3 Goals * Research and develop technologies to improve T&D reliability * Technologies - Real-time load control methodologies - Measurement-based stability-assessment 4 Enabling Technologies * Load control enabled by GridWise technology (e.g. PNNL's GridFriendly appliance) * Real-time stability assessment enabled by Phasor Measurement (PMU) technology 5 Project Overview * Time line: April 18, 2006 thru April 17, 2008

179

Controlling Fleas  

E-Print Network [OSTI]

. Control An integrated flea control program includes good sanitation and treatment of the pet and environment. You can eliminate fleas from your home with proper treatment, but it may take time, especially if the infes- tation is heavy. Sanitation. Change... of an integrated flea control program for your home. Don?t wait until fleas get out of hand. Begin your flea control program early for best results. Start a fre- quent and thorough sanitation program, regularly inspect your pet for fleas, carefully follow...

Merchant, Michael E.; Robinson, James V.

2006-12-18T23:59:59.000Z

180

Renewable source controls for grid stability.  

SciTech Connect (OSTI)

The goal of this study was to evaluate the small signal and transient stability of the Western Electric- ity Coordinating Council (WECC) under high penetrations of renewable energy, and to identify control technologies that would improve the system performance. The WECC is the regional entity responsible for coordinating and promoting bulk electric system reliability in the Western Interconnection. Transient stability is the ability of the power system to maintain synchronism after a large disturbance while small signal stability is the ability of the power system to maintain synchronism after a small disturbance. Tran- sient stability analysis usually focuses on the relative rotor angle between synchronous machines compared to some stability margin. For this study we employed generator speed relative to system speed as a metric for assessing transient stability. In addition, we evaluated the system transient response using the system frequency nadir, which provides an assessment of the adequacy of the primary frequency control reserves. Small signal stability analysis typically identi es the eigenvalues or modes of the system in response to a disturbance. For this study we developed mode shape maps for the di erent scenarios. Prony analysis was applied to generator speed after a 1.4 GW, 0.5 second, brake insertion at various locations. Six di erent WECC base cases were analyzed, including the 2022 light spring case which meets the renewable portfolio standards. Because of the di culty in identifying the cause and e ect relationship in large power system models with di erent scenarios, several simulations were run on a 7-bus, 5-generator system to isolate the e ects of di erent con gurations. Based on the results of the study, for a large power system like the WECC, incorporating frequency droop into wind/solar systems provides a larger bene t to system transient response than replacing the lost inertia with synthetic inertia. From a small signal stability perspective, the increase in renewable penetration results in subtle changes to the system modes. In gen- eral, mode frequencies increase slightly, and mode shapes remain similar. The system frequency nadir for the 2022 light spring case was slightly lower than the other cases, largely because of the reduced system inertia. However, the nadir is still well above the minimum load shedding frequency of 59.5 Hz. Finally, several discrepancies were identi ed between actual and reported wind penetration, and additional work on wind/solar modeling is required to increase the delity of the WECC models.

Byrne, Raymond Harry; Elliott, Ryan Thomas; Neely, Jason C.; Silva Monroy, Cesar Augusto; Schoenwald, David Alan; Grant, Lisa

2012-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Extended Constant Power Speed Range of the Brushless DC Motor Through Dual Mode Inverter Control  

SciTech Connect (OSTI)

The trapezoidal back electromotive force (emf) brushless direct current (dc) motor (BDCM) with surface-mounted magnets has high-power density and efficiency especially when rare-earth magnet materials are used. Traction applications, such as electric vehicles, could benefit significantly from the use of such motors. Unfortunately, a practical means for driving the motor over a constant power speed ratio (CPSR) of 5:1 or more has not yet been developed. A key feature of these motors is that they have low internal inductance. The phase advance method is effective in controlling the motor power over such a speed range, but the current at high speed may be several times greater than that required at the base speed. The increase in current during high-speed operation is due to the low motor inductance and the action of the bypass diodes of the inverter. The use of such a control would require increased current rating of the inverter semiconductors and additional cooling for the inverter, where the conduction losses increase proportionally with current, and especially for the motor, where the losses increase with the square of the current. The high current problems of phase advance can be mitigated by adding series inductance; however, this reduces power density, requires significant increase in supply voltage, and leaves the CPSR performance of the system highly sensitive to variations in the available voltage. A new inverter topology and control scheme has been developed that can drive low-inductance BDCMs over the CPSR that would be required in electric vehicle applications. This new controller is called the dual-mode inverter control (DMIC). It is shown that the BDCM has an infinite CPSR when it is driven by the DMIC.

Lawler, J.S.

2000-06-23T23:59:59.000Z

182

Experimental Investigation of Fuel-Reactivity Controlled Compression Ignition (RCCI) Combustion Mode in a Multi-Cylinder, Light-Duty Diesel Engine  

SciTech Connect (OSTI)

An experimental study was performed to provide the combustion and emission characteristics resulting from fuel-reactivity controlled compression ignition (RCCI) combustion mode utilizing dual-fuel approach in a light-duty, multi-cylinder diesel engine. In-cylinder fuel blending using port fuel injection of gasoline before intake valve opening (IVO) and early-cycle, direct injection of diesel fuel was used as the charge preparation and fuel blending strategy. In order to achieve the desired auto-ignition quality through the stratification of the fuel-air equivalence ratio ( ), blends of commercially available gasoline and diesel fuel were used. Engine experiments were performed at an engine speed of 2300rpm and an engine load of 4.3bar brake mean effective pressure (BMEP). It was found that significant reduction in both nitrogen oxide (NOx) and particulate matter (PM) was realized successfully through the RCCI combustion mode even without applying exhaust gas recirculation (EGR). However, high carbon monoxide (CO) and hydrocarbon (HC) emissions were observed. The low combustion gas temperature during the expansion and exhaust processes seemed to be the dominant source of high CO emissions in the RCCI combustion mode. The high HC emissions during the RCCI combustion mode could be due to the increased combustion quenching layer thickness as well as the -stratification at the periphery of the combustion chamber. The slightly higher brake thermal efficiency (BTE) of the RCCI combustion mode was observed than the other combustion modes, such as the conventional diesel combustion (CDC) mode, and single-fuel, premixed charge compression ignition (PCCI) combustion mode. The parametric study of the RCCI combustion mode revealed that the combustion phasing and/or the peak cylinder pressure rise rate of the RCCI combustion mode could be controlled by several physical parameters premixed ratio (rp), intake swirl intensity, and start of injection (SOI) timing of directly injected fuel unlike other low temperature combustion (LTC) strategies.

Cho, Kukwon [ORNL] [ORNL; Curran, Scott [ORNL] [ORNL; Prikhodko, Vitaly Y [ORNL] [ORNL; Sluder, Scott [ORNL] [ORNL; Parks, II, James E [ORNL; Wagner, Robert M [ORNL] [ORNL

2011-01-01T23:59:59.000Z

183

DRIVE CYCLE EFFICIENCY AND EMISSIONS ESTIMATES FOR REACTIVITY CONTROLLED COMPRESSION IGNITION IN A MULTI-CYLINDER LIGHT-DUTY DIESEL ENGINE  

SciTech Connect (OSTI)

In-cylinder blending of gasoline and diesel to achieve Reactivity Controlled Compression Ignition (RCCI) has been shown to reduce NOx and PM emissions while maintaining or improving brake thermal efficiency as compared to conventional diesel combustion (CDC). The RCCI concept has an advantage over many advanced combustion strategies in that by varying both the percent of premixed gasoline and EGR rate, stable combustion can be extended over more of the light-duty drive cycle load range. Changing the percent premixed gasoline changes the fuel reactivity stratification in the cylinder providing further control of combustion phasing and pressure rise rate than the use of EGR alone. This paper examines the combustion and emissions performance of light-duty diesel engine using direct injected diesel fuel and port injected gasoline to carry out RCCI for steady-state engine conditions which are consistent with a light-duty drive cycle. A GM 1.9L four-cylinder engine with the stock compression ratio of 17.5:1, common rail diesel injection system, high-pressure EGR system and variable geometry turbocharger was modified to allow for port fuel injection with gasoline. Engine-out emissions, engine performance and combustion behavior for RCCI operation is compared against both CDC and a premixed charge compression ignition (PCCI) strategy which relies on high levels of EGR dilution. The effect of percent of premixed gasoline, EGR rate, boost level, intake mixture temperature, combustion phasing and pressure rise rate is investigated for RCCI combustion for the light-duty modal points. Engine-out emissions of NOx and PM were found to be considerably lower for RCCI operation as compared to CDC and PCCI, while HC and CO emissions were higher. Brake thermal efficiency was similar or higher for many of the modal conditions for RCCI operation. The emissions results are used to estimate hot-start FTP-75 emissions levels with RCCI and are compared against CDC and PCCI modes.

Curran, Scott [ORNL; Briggs, Thomas E [ORNL; Cho, Kukwon [ORNL; Wagner, Robert M [ORNL

2011-01-01T23:59:59.000Z

184

Robust yaw stability controller design and hardware-in-the-loop testing for a road vehicle  

E-Print Network [OSTI]

Unsymmetrical loading on a car like mu-split braking, side wind forces, or unilateral loss of tire pressure results in unexpected yaw disturbances that require yaw stabilization either by the driver or by an automatic ...

Guvenc, Levent

185

Radiological Control  

Broader source: Energy.gov (indexed) [DOE]

DOE-STD-1098-2008 October 2008 DOE STANDARD RADIOLOGICAL CONTROL U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. ii DOE-STD-1098-2008 This document is available on the Department of Energy Technical Standards Program Website at http://www.standards.doe.gov/ DOE-STD-1098-2008 Radiological Control DOE Policy October 2008 iii Foreword The Department of Energy (DOE) has developed this Standard to assist line managers in meeting their responsibilities for implementing occupational radiological control programs. DOE has established regulatory requirements for occupational radiation protection in Title 10 of the Code of Federal

186

ACCESS CONTROL  

Broader source: Energy.gov (indexed) [DOE]

TERMS/DEFINITIONS FROM DOE M 470.4-7 TERMS/DEFINITIONS FROM DOE M 470.4-7 ACCESS CONTROL. The process of permitting access or denying access to information, facilities, nuclear materials, resources, or designated security areas. ACCESS CONTROL MEASURES. Hardware and software features, physical controls, operating procedures, administrative procedures, and various combinations of these designed to detect or prevent unauthorized access to classified information; special nuclear materials; Government property; automated information systems, facilities, or materials; or areas containing the above and to enforce use of these measures to protect Departmental security and property interests. CRITICAL PATH SCENARIO. An adversary-based scenario that is generated during the conduct of a vulnerability assessment and accounts for adversary tactics that

187

Radiological Control  

Broader source: Energy.gov (indexed) [DOE]

DOE-STD-1098-2008 October 2008 ------------------------------------- Change Notice 1 May 2009 DOE STANDARD RADIOLOGICAL CONTROL U.S. Department of Energy SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. DOE-STD-1098-2008 ii This document is available on the Department of Energy Technical Standards Program Website at http://www.standards.doe.gov/ iii DOE-STD-1098-2008 Change Notice 1: DOE-STD-1098-2008, Radiological Control Standard Section/page/paragraph Change Section 211, page 2-3, paragraph 1 Add new paragraph 1: "Approval by the appropriate Secretarial Officer or designee should be required

188

CONCEPTUAL DESIGN AND OPTIMAL POWER CONTROL STRATEGY FOR AN ECO?FRIENDLY HYBRID VEHICLE  

Science Journals Connector (OSTI)

This paper presents a new concept for a hybrid vehicle using a torque and speed splitting technique. It is implemented by the newly developed controller in combination with a two degree of freedom epicyclic gear transmission. This approach enables optimization of the power split between the less powerful electrical motor and more powerful engine while driving a car load. The power split is fundamentally a dual?energy integration mechanism as it is implemented by using the epicyclic gear transmission that has two inputs and one output for a proper power distribution. The developed power split control system manages the operation of both the inputs to have a known output with the condition of maintaining optimum operating efficiency of the internal combustion engine and electrical motor. This system has a huge potential as it is possible to integrate all the features of hybrid vehicle known to?date such as the regenerative braking system series hybrid parallel hybrid series/parallel hybrid and even complex hybrid (bidirectional). By using the new power split system it is possible to further reduce fuel consumption and increase overall efficiency.

N. Mir Nasiri; Frederick T. A. Chieng

2011-01-01T23:59:59.000Z

189

Effectiveness of Diesel Oxidation Catalyst in Reducing HC and CO Emissions from Reactivity Controlled Compression Ignition  

SciTech Connect (OSTI)

Reactivity Controlled Compression Ignition (RCCI) has been shown to allow for diesel-like or better brake thermal efficiency with significant reductions in nitrogen oxide (NOX) particulate matter (PM) emissions. Hydrocarbon (HC) and carbon monoxide (CO) emission levels, on the other hand, are similar to those of port fuel injected gasoline engines. The higher HC and CO emissions combined with the lower exhaust temperatures with RCCI operation present a challenge for current exhaust aftertreatments. The reduction of HC and CO emissions in a lean environment is typically achieved with an oxidation catalyst. In this work, several diesel oxidation catalysts (DOC) with different precious metal loadings were evaluated for effectiveness to control HC and CO emissions from RCCI combustion in a light-duty multi-cylinder engine operating on gasoline and diesel fuels. Each catalyst was evaluated in a steady-state engine operation with temperatures ranging from 160 to 260 C. A shift to a higher light-off temperature was observed during the RCCI operation. In addition to the steady-state experiments, the performances of the DOCs were evaluated during multi-mode engine operation by switching from diesel-like combustion at higher exhaust temperature and low HC/CO emissions to RCCI combustion at lower temperature and higher HC/CO emissions. High CO and HC emissions from RCCI generated an exotherm keeping the catalyst above the light-off temperature.

Prikhodko, Vitaly Y [ORNL; Curran, Scott [ORNL; Parks, II, James E [ORNL; Wagner, Robert M [ORNL

2013-01-01T23:59:59.000Z

190

EV Everywhere Workshop: Traction Drive Systems Breakout Group Report  

Broader source: Energy.gov [DOE]

Presentation given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL.

191

Influence of surface traction on soft robot undulation  

E-Print Network [OSTI]

principles of elasticity and friction, we introduce a theoretical model that identifies the tribological their shape and functionality. This unique combination of mobil- ity, elastic compliance, and multi physical factors and classical theories that could eventually be used to find locomotion strategies

Liu, David R.

192

Design and Implementation of an Electric Differential for Traction Application  

E-Print Network [OSTI]

and transmissions with lighter and smaller electric motors directly coupled to the wheels via a single gear or an in-wheel motor. This paper deals then with an Electric Differential System (EDS) for an Electric Vehicle (EV angle with good static and dynamic performances. Index Terms--Electric Vehicle (EV), induction motor

Paris-Sud XI, Université de

193

Numerical Simulation of the Thermal Management for Traction Batteries  

Science Journals Connector (OSTI)

The electrification of vehicle powertrains is a rapidly developing technology. Especially for the development of the used high-voltage batteries, an elaborated thermal management is needed to secure their perform...

Xiao Hu

2012-02-01T23:59:59.000Z

194

Goodyear Tire Plant Gains Traction on Energy Savings After Completing...  

Broader source: Energy.gov (indexed) [DOE]

Completing Save Energy Now Assessment Saves 875,000 in Energy Costs; Reduces Natural Gas Consumption Industrial Technologies Program Case Study Benefits * Implemented...

195

Live Cells Exert 3-Dimensional Traction Forces on Their Substrata  

E-Print Network [OSTI]

The properties of polyacrylamide (PAA) gel were evaluated inon Polyacrylamide Surface PAA deformable substrate wasSigma) was cross-linked with PAA surface by activating N-

Hur, Sung Sik; Zhao, Yihua; Li, Yi-Shuan; Botvinick, Elliot; Chien, Shu

2009-01-01T23:59:59.000Z

196

High-Temperature, Air-Cooled Traction Drive Inverter Packaging  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

197

Combustion Control  

E-Print Network [OSTI]

using a liquid fuel. The air and fuel valve designs are vastly different, with different flow characteristics. These factors make the initial adjustment of the system difficult, and proper maintenance of ratio accuracy unlikely. Linked valves... casing of the fuel control regulator with the combustion air piping. The upstream pressure on the burner air orifice is applied to the main diaphragm of the pressure balanced regulator. Assuming sufficient gas pressure at the regulator inlet...

Riccardi, R. C.

1984-01-01T23:59:59.000Z

198

Extending the Constant Power Speed Range of the Brushless DC Motor through Dual Mode Inverter Control -- Part I: Theory and Simulation  

SciTech Connect (OSTI)

An inverter topology and control scheme has been developed that can drive low-inductance, surface-mounted permanent magnet motors over the wide constant power speed range required in electric vehicle applications. This new controller is called the dual-mode inverter control (DMIC) [1]. The DMIC can drive either the Permanent Magnet Synchronous Machine (PMSM) with sinusoidal back emf, or the brushless dc machine (BDCM) with trapezoidal emf in the motoring and regenerative braking modes. In this paper we concentrate on the BDCM under high-speed motoring conditions. Simulation results show that if all motor and inverter loss mechanisms are neglected, the constant power speed range of the DMIC is infinite. The simulation results are supported by closed form expressions for peak and rms motor current and average power derived from analytical solution to the differential equations governing the DMIC/BDCM drive for the lossless case. The analytical solution shows that the range of motor inductance that can be accommodated by the DMIC is more than an order of magnitude such that the DMIC is compatible with both low- and high-inductance BDCMs. Finally, method is given for integrating the classical hysteresis band current control, used for motor control below base speed, with the phase advance of DMIC that is applied above base speed. The power versus speed performance of the DMIC is then simulated across the entire speed range.

Lawler, J.S.

2001-10-29T23:59:59.000Z

199

Heliostat control  

SciTech Connect (OSTI)

An improvement in a system and method of controlling heliostat in which the heliostat is operable in azimuth and elevation by respective stepper motors and including the respective steps or means for calculating the position for the heliostat to be at a commanded position, determining the number of steps in azimuth and elevation for each respective motor to get to the commanded position and energizing both the azimuth and elevation stepper motors to run in parallel until predetermined number of steps away from the closest commanded position in azimuth and elevation so that the closest position has been achieved, and thereafter energizing only the remaining motor to bring it to its commanded position. In this way, the heliostat can be started from a stowed position in the morning and operated by a computer means to its commanded position and kept correctly oriented throughout the day using only the time of the day without requiring the usual sensors and feedback apparatus. A computer, or microprocessor, can then control a plurality of many heliostats easily and efficiently throughout the day.

Kaehler, James A. (Littleton, CO)

1984-01-01T23:59:59.000Z

200

Heliostat control  

SciTech Connect (OSTI)

An improvement in a system and method of controlling heliostat in which the heliostat is operable in azimuth and elevation by respective stepper motors and including the respective steps or means for calculating the position for the heliostat to be at a commanded position, determining the number of steps in azimuth and elevation for each respective motor to get to the commanded position and energizing both the azimuth and elevation stepper motors to run in parallel until predetermined number of steps away from the closest commanded position in azimuth and elevation so that the closest position has been achieved, and thereafter energizing only the remaining motor to bring it to its commanded position. In this way, the heliostat can be started from a stowed position in the morning and operated by a computer means to its commanded position and kept correctly oriented throughout the day using only the time of the day without requiring the usual sensors and feedback apparatus. A computer, or microprocessor, can then control a plurality of many heliostats easily and efficiently throughout the day.

Kaehler, J.A.

1984-04-03T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Proceedingsof the American Control Conference Chicago, Illinois June 2000  

E-Print Network [OSTI]

, engine clutch, CVT, electric motor, lead-acid battery, vehicle driveline, hydraulic brakes powertrain [3]. Parallel Hybrid Electric Vehicles (PHEV) are HEVs configured such that the electric motor of the vehicle's power ultimately comes from fuel. The battery is recharged by using the electric motor

Peng, Huei

202

E-Print Network 3.0 - aircraft spacing system Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of the decision ... Source: NASA - Center-TRACTION Automation System (CTAS) Collection: Energy Storage, Conversion and Utilization 3 TAl -1 1:00 SIMULATION OF TIME-CONTROL...

203

Lighting Group: Controls: Advanced Digital Controls  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Advanced Digital Controls Advanced Digital Controls HPCBS Advanced Digital Controls Objective The goal of this project is to hasten the adoption of digital lighting control systems to allow commercial building operators to optimize the neergy performance of their lighting systems, implement demand responsive control, and improve occupant comfort and productivity. The specific objectives are as follows: (1) Advance the adoption of digital lighting control systems by working with industry to embed IBECS technology into existing analog control and DALI products, and by developing compelling demonstrations of digital control systems for evaluation by early adopters. (2) In collaboration with equipment manufacturers, produce digital lighting system prototypes that demonstrate the advantages of digitally controlled lighting systems to innovative property managers and other energy stakeholders. A digitally controlled lighting system consists of lights that are individually controllable via a network. The advantages of digital control are:

204

Controlled Synthesis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

lUU lUU iIII---11111 q o m Controlled Synthesis of Polyenes by Catalytic Methods Progress Report for the period 12/01/92 - 11/30/93 Richard R. Schrock Five papers have appeared in the last year (see list at end), numbers 225,229, 233, 236, and 240. The living cyclopolymerization of dipropargyl derivatives has been reported for diethyl dipropargylmalonate (X = C(CO2Et)2; Scheme I; #225). We have found that c_ addition and [3 addition take place approximately to an equivalent degree, on the basis of the 13C NMR chemical shift for the quaternary carbon atom in the five or si×-membered ring, and in the presence of ethylene have isolated a molecule that contains a si×-membered ring that is formed when ethylene cleaves the cyclized species from the metal in a chain transfer-like reaction. On this basis also we can say that the polymer prepared from this monomer using classical catalysts contain

205

Thermal Control & System Integration  

Broader source: Energy.gov [DOE]

The thermal control and system integration activity focuses on issues such as the integration of motor and power control technologies and the development of advanced thermal control technologies....

206

Anti-slip regulator system (ASR)  

Science Journals Connector (OSTI)

When wheelspin occurs the anti-slip regulator system (ASR) regulates the drive torque in such a way that steerability is always retained, together with good forward traction. The microprocessor which performs the regulating function compares the wheel speed increase at each driven wheel with the vehicle acceleration, and calculates the 'excess torque' which is causing wheelspin, and eliminates it automatically by briefly actuating the wheel brake and/or by backing off the throttle. At low speeds the wheel with the greatest amount of wheelspin is slowed by an exactly calculated brake application with a simultaneous reduction of engine power, so that the amount of forward traction is determined by the greatest available surface adhesion. At higher speeds, however, in order to avoid undesired yaw reactions, the system operates only by reducing engine power delivery by the necessary amount, which means that the amount of tractive force is determined by the lower surface adhesion value in each case.

B.-G. Schulze; E. Lissel

1987-01-01T23:59:59.000Z

207

Minimizing control variation in nonlinear optimal control  

Science Journals Connector (OSTI)

In any real system, changing the control signal from one value to another will usually cause wear and tear on the system's actuators. Thus, when designing a control law, it is important to consider not just predicted system performance, but also the ... Keywords: Constrained optimal control, Nonlinear optimization, Optimal control computation, Total variation

Ryan Loxton; Qun Lin; Kok Lay Teo

2013-09-01T23:59:59.000Z

208

A self-reconfigurable and fault-tolerant induction motor control architecture  

E-Print Network [OSTI]

. Index Terms-- Fault tolerant, induction motor drive, hy- brid electric vehicule, observers. I the major requirements of automotive electric traction [1]. Several failures afflict electrical motor drives electric vehicles M. Hilairet, D. Diallo and M.E.H. Benbouzid Abstract-- This paper describes an adaptive

Paris-Sud XI, Université de

209

Development of a variable controlled inertia charging system for naturally aspirated diesel engines in heavy duty trucks  

Science Journals Connector (OSTI)

An idea for controlling the inertia charging effect of diesel engines have been developed. Although the conventional inertia charging system can provide an effect in a narrow driving range, the new concept covers the whole range of engine speeds and load conditions. The Hino EK100 naturally aspirated 13.3 dm engine equipped with this variable controlled inertia charging system could meet the 1983 Japanese exhaust emission regulation (intensified to 470ppm of NOx on 6 Mode from the original value of 770ppm in 1974) while giving an improved fuel economy. This 199 kw engine is applied to the Hino heavy duty truck named the 'New Super Dolphin (Econo Diesel)'. One of the measures to offset the deterioration of engine performance caused by the reduction of exhaust gas emissions is to improve the combustion characteristics by increasing the excess air ratio. Although inertia charging can provide more excess air for the engine, this system has to have come fixed factors such as tuned pipe length and diameter etc. So the resonance zone is also fixed within a narrow engine speed range. And, moreover, out of such range, the air quantity has been reduced below that experienced without inertia charging. Thus variable control of the inertia charging with a mechanism to change the tuned pipe length is considered for this system. The intake air quantity is thus controlled to improve engine performance over a wide speed range at both full load and partial load. The engine can get a higher brake mean effective pressure of 0.90 MPa at peak torque and also improve fuel consumption even at partial load by reduced intake air quantity for minimizing gas exchange loss.

N. Eguchi; T. Kubodera; T. Otani; K. Usami

1986-01-01T23:59:59.000Z

210

Computer usage control  

Science Journals Connector (OSTI)

...Article Computer usage control M. M. Lehman * Department of Computing and Control, Imperial...integrated multiple-computer, multiple operating systems, pricing and usage control mechanism. The original version described in this paper, was......

M. M. Lehman

1973-01-01T23:59:59.000Z

211

Fundamentals of Capacity Control  

Science Journals Connector (OSTI)

Whereas capacity planning determines in advance the capacities required to implement a production program, capacity control determines the actual capacities implemented shortly beforehand. The capacity control...

Prof. Dr.-Ing. habil. Hermann Ldding

2013-01-01T23:59:59.000Z

212

Superconducting VAR control  

DOE Patents [OSTI]

Static VAR control means employing an asymmetrically controlled Graetz bridge and a superconducting direct current coil having low losses and low cost characteristics.

Boenig, Heinrich J. (Los Alamos, NM); Hassenzahl, William V. (Piedmont, CA)

1982-01-01T23:59:59.000Z

213

Nuclear reactor control apparatus  

DOE Patents [OSTI]

Nuclear reactor core safety rod release apparatus comprises a control rod having a detent notch in the form of an annular peripheral recess at its upper end, a control rod support tube for raising and lowering the control rod under normal conditions, latches pivotally mounted on the control support tube with free ends thereof normally disposed in the recess in the control rod, and cam means for pivoting the latches out of the recess in the control rod when a scram condition occurs. One embodiment of the invention comprises an additional magnetically-operated latch for releasing the control rod under two different conditions, one involving seismic shock.

Sridhar, Bettadapur N. (Cupertino, CA)

1983-11-01T23:59:59.000Z

214

Document Control Process  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 Document Control Process 11_0304 Page 1 of 7 1 Document Control Process 11_0304 Page 1 of 7 EOTA - Business Process Document Title: Document Control Process Document Number: P-001 Rev 11_0304 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: Q-001, Quality Manual Notify of Changes: EOTA Employees Referenced Document(s): F-001 Document Control Template - Process, F-002 Document Control Template - Instruction, F-003 Document Control Template - Screenshot, F-004 Document Control Template - Form, F-005 Document Control Template - Form - Excel, MGTP-002 Skill Set Model, Q-003 EOTA Processes: Sequence and Interaction, P-003, Control of Records P-001 Document Control Process 11_0304 Page 2 of 7 Revision History: Rev. Description of Change

215

Use of Fault Tree Analysis for Automotive Reliability and Safety Analysis  

SciTech Connect (OSTI)

Fault tree analysis (FTA) evolved from the aerospace industry in the 1960's. A fault tree is deductive logic model that is generated with a top undesired event in mind. FTA answers the question, ''how can something occur?'' as opposed to failure modes and effects analysis (FMEA) that is inductive and answers the question, ''what if?'' FTA is used in risk, reliability and safety assessments. FTA is currently being used by several industries such as nuclear power and chemical processing. Typically the automotive industries uses failure modes and effects analysis (FMEA) such as design FMEAs and process FMEAs. The use of FTA has spread to the automotive industry. This paper discusses the use of FTA for automotive applications. With the addition automotive electronics for various applications in systems such as engine/power control, cruise control and braking/traction, FTA is well suited to address failure modes within these systems. FTA can determine the importance of these failure modes from various perspectives such as cost, reliability and safety. A fault tree analysis of a car starting system is presented as an example.

Lambert, H

2003-09-24T23:59:59.000Z

216

An improved energy management strategy for FC/UC hybrid electric vehicles propelled by motor-wheels  

Science Journals Connector (OSTI)

Abstract The hybridization of the fuel-cell electric-vehicle (FCEV) by a second energy source has the advantage of improving the system's dynamic response and efficiency. Indeed, an ultra-capacitor (UC) system used as an energy storage device fulfills the FC slowest dynamics during fast power transitions and recovers the braking energy. In FC/UC hybrid vehicles, the search for a suitable power management approach is one of the main objectives. In this paper, an improved control strategy managing the active power distribution between the two energy sources is proposed. The UC reference power is calculated through the DC link voltage regulation. For the FC power demand, an algorithm with five operating modes is developed. This algorithm, depending on the UC state of charge (SOC) and the vehicle speed level, minimizes the FC power demand transitions and therefore ameliorates its durability. The traction power is provided using two permanent magnetic synchronous motor-wheels to free more space in the vehicle. The models of the FC/UC vehicle system parts and the control strategy are developed using MATLAB software. Simulation results show the effectiveness of the proposed energy management strategy.

Islem Lachhab; Lotfi Krichen

2014-01-01T23:59:59.000Z

217

Control system design method  

DOE Patents [OSTI]

A control system design method and concomitant control system comprising representing a physical apparatus to be controlled as a Hamiltonian system, determining elements of the Hamiltonian system representation which are power generators, power dissipators, and power storage devices, analyzing stability and performance of the Hamiltonian system based on the results of the determining step and determining necessary and sufficient conditions for stability of the Hamiltonian system, creating a stable control system based on the results of the analyzing step, and employing the resulting control system to control the physical apparatus.

Wilson, David G. (Tijeras, NM); Robinett, III, Rush D. (Tijeras, NM)

2012-02-21T23:59:59.000Z

218

Trends in furnace control  

SciTech Connect (OSTI)

This paper relates Italimpianti's experiences over the past few years in the area of control of reheat furnaces for the steel industry. The focus is on the level 1 area; specifically on the use of PLC-based systems to perform both combustion control and mechanical/hydraulic control. Some topics to be discussed are: overview of reheat furnace control system requirements; PLC only control vs separate PLC and DCS systems; PLC hardware requirements; man machine interface (MMI) requirements; purge, light-on and safety logic; implementation of more sophisticated level 1 control algorithms; furnace temperature optimization: look up tables vs full thermal modeling; and recent trends including integrated PLC/DCS system.

McDonald, T.J.; Keefe, M.D. (Italimpianti of America, Inc., Coraopolis, PA (United States). Instrumentation and Controls Dept.)

1993-07-01T23:59:59.000Z

219

Strategic Trade Control: Multilateral Export Control Arrangements  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Multilateral Multilateral Export Control Arrangements Nonproliferation & National Security (NPNS) Overview Technical Nonproliferation Policy Support Strategic Trade Control Review of export license applications Multilateral Export Control Arrangements Interdiction Engagement & Training INECP INSEP GIPP Safeguards Concepts and Approaches Human Capital Development Additional Protocol Technical Assistance National Security Systems & Assessments National Security Information Systems Vulnerability Assessment Team (VAT) Radiation Detection & Response (RDR) Contact NPNS Other Major Programs Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE Division on Flickr Nonproliferation and National Security Program Technical Nonproliferation Policy Support (TNPS)

220

Robust efficiency and actuator saturation explain healthy heart rate control and variability  

Science Journals Connector (OSTI)

...treated as compliant vessels, modeled in the form...iv) the metabolic consumption M; (v...multitasking, alcohol consumption, fatigue, or poor...signals (e.g., fuel or air rates, braking...ventilation V ? E , oxygen consumption V ? O 2 and carbon...

Na Li; Jerry Cruz; Chenghao Simon Chien; Somayeh Sojoudi; Benjamin Recht; David Stone; Marie Csete; Daniel Bahmiller; John C. Doyle

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Embedded controllers for local board-control  

E-Print Network [OSTI]

The LHCb experiment at CERN has a large number of custom electronic boards performing high-speed data-processing. Like in any large experiment the control and monitoring of these crate-mounted boards must be integrated into the overall control-system. Traditionally this has been done by using buses like VME on the back-plane of the crates. LHCb has chosen to equip every board with an embedded micro-controller and connecting them in a large Local Area Network. The intelligence of these devices allows complex (soft) real-time control and monitoring, required for modern powerful FPGA driven electronics. Moreover each board has its own, isolated control access path, which increases the robustness of the entire system. The system is now in pre-production at several sites and will go into full production during next year. The hardware and software will be discussed and experiences from the R&D and pre-production will be reviewed, with an emphasis on advantages and difficulties of this approach to board-control.

Neufeld, Niko; Mini, Giuseppe; Sannino, Mario; Guzik, Zbigniew; Jacobsson, Richard; Jost, Beat

2005-01-01T23:59:59.000Z

222

Compact character controllers  

Science Journals Connector (OSTI)

We present methods for creating compact and efficient data-driven character controllers. Our first method identifies the essential motion data examples tailored for a given task. It enables complex yet efficient high-dimensional controllers, as well ... Keywords: data driven animation, human animation, optimal control

Yongjoon Lee; Seong Jae Lee; Zoran Popovi?

2009-12-01T23:59:59.000Z

223

Thermoelectric Temperature Control  

E-Print Network [OSTI]

the controller can supply the power required to bring the device to the desired temperature and maintain a stableNOTE 201TM TECHNICAL Optimizing Thermoelectric Temperature Control Systems #12;2 May 1995 92 of applications that require extremely stable temperature control. System design can be complex, but improved

Saffman, Mark

224

232 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 2, MARCH 2002 Current Control Strategy for Brushless DC Motors  

E-Print Network [OSTI]

in- duction motors, and brushless permanent magnet motors do not have brushes, and their rotors type is complex and so- phisticated. The development of brushless permanent magnet machines [3]­[5] has of brushless permanent magnet machines for traction applications are the most popular: 1) permanent magnet

Catholic University of Chile (Universidad Católica de Chile)

225

Mechanical responsiveness of the endothelial cell of Schlemm's canal: scope, variability and its potential role in controlling aqueous humour outflow  

Science Journals Connector (OSTI)

...considerable traction forces (figure 1 c,d), with a root mean square (r...contractile responses (figure 2 a,c), and relaxing responses (figure...tb05954.x ) 80 Johnson, M. , A. Shapiro, C. R. Ethier, and R. D. Kamm 1992...

2012-01-01T23:59:59.000Z

226

Integrated Biological Control  

SciTech Connect (OSTI)

Biological control is any activity taken to prevent, limit, clean up, or remediate potential environmental, health and safety, or workplace quality impacts from plants, animals, or microorganisms. At Hanford the principal emphasis of biological control is to prevent the transport of radioactive contamination by biological vectors (plants, animals, or microorganisms), and where necessary, control and clean up resulting contamination. Other aspects of biological control at Hanford include industrial weed control (e.g.; tumbleweeds), noxious weed control (invasive, non-native plant species), and pest control (undesirable animals such as rodents and stinging insects, and microorganisms such as molds that adversely affect the quality of the workplace environment). Biological control activities may be either preventive (a priori) or in response to existing contamination spread (a posteriori). Surveillance activities, including ground, vegetation, flying insect, and other surveys, and a priori control actions, such as herbicide spraying and placing biological barriers, are important in preventing radioactive contamination spread. If surveillance discovers that biological vectors have spread radioactive contamination, a posteriori control measures, such as fixing contamination, followed by cleanup and removal of the contamination to an approved disposal location are typical response functions. In some cases remediation following the contamination cleanup and removal is necessary. Biological control activities for industrial weeds, noxious weeds and pests have similar modes of prevention and response.

JOHNSON, A.R.

2003-10-09T23:59:59.000Z

227

Integrated Biological Control  

SciTech Connect (OSTI)

Biological control is any activity taken to prevent, limit, clean up, or remediate potential environmental, health and safety, or workplace quality impacts from plants, animals, or microorganisms. At Hanford the principal emphasis of biological control is to prevent the transport of radioactive contamination by biological vectors (plants, animals, or microorganisms), and where necessary, control and clean up resulting contamination. Other aspects of biological control at Hanford include industrial weed control (e.g.; tumbleweeds), noxious weed control (invasive, non-native plant species), and pest control (undesirable animals such as rodents and stinging insects; and microorganisms such as molds that adversely affect the quality of the workplace environment). Biological control activities may be either preventive (apriori) or in response to existing contamination spread (aposteriori). Surveillance activities, including ground, vegetation, flying insect, and other surveys, and apriori control actions, such as herbicide spraying and placing biological barriers, are important in preventing radioactive contamination spread. If surveillance discovers that biological vectors have spread radioactive contamination, aposteriori control measures, such as fixing contamination, followed by cleanup and removal of the contamination to an approved disposal location are typical response functions. In some cases remediation following the contamination cleanup and removal is necessary. Biological control activities for industrial weeds, noxious weeds and pests have similar modes of prevention and response.

JOHNSON, A.R.

2002-09-01T23:59:59.000Z

228

Daimler's SuperTruck Program; 50% Brake Thermal Efficiency  

Broader source: Energy.gov [DOE]

Presents highlights of engine and vehicle advances made, and progress towards achieving aggressive goals

229

Emergency Braking: A Study of Network and Application Performance  

E-Print Network [OSTI]

of such applications as a function of the market penetration rate, showing that even cars that are not equipped interact? What is the market penetration rate that makes EEBL ben- efits measurable? Do non

Lo Cigno, Renato Antonio

230

Improvements of vehicle fuel economy using mechanical regenerative braking  

Science Journals Connector (OSTI)

The paper presents a mixed theoretical and experimental evaluation of the improvements in fuel economy that follow the introduction of a mechanical Kinetic Energy Recovery System (KERS) on a full size passenger car. This system, made up of a high speed storage flywheel and a Constant Variable Transmission (CVT), has a full regenerative cycle overall efficiency about twice the efficiency of battery-based hybrids. With reference to the baseline configuration having a 4L gasoline engine, adoption of a KERS may reduce the fuel consumption covering the NEDC by 25% without downsizing, and by 33% downsizing the engine to 3.3L.

Alberto A. Boretti

2011-01-01T23:59:59.000Z

231

ORNL/Pub40701 Heavy and Overweight Vehicle Brake  

E-Print Network [OSTI]

, and International Nuclear Information System (INIS) representatives from the following source. Office of Scientific

232

Control of Customer Property  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6 EOTA Key Control Process 11_0119.docx1_0119 6 EOTA Key Control Process 11_0119.docx1_0119 Page 1 of 5 EOTA - Business Process Document Title: EOTA Key Control Process Document Number: MGTP-006 Rev. 11_0119 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: MGTP-003 Control of Customer Property Notify of Changes: EOTA Employees Referenced Document(s): MGTF-012 Key Check-Out Form MGTP-006 EOTA Key Control Process 11_0119.docx1_0119 Page 2 of 5 Revision History: Rev. Description of Change 10_0823 Initial Release 11_0119 Modified process to include steps to take if an employee does not return a key. MGTP-006 EOTA Key Control Process 11_0119.docx1_0119 Page 3 of 5 I. Purpose To establish a process for control of all EOTA keys.

233

One Controlling Many  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

One Controlling Many One Controlling Many As Unmanned Systems proliferate the battle space, the decisive advantages historically provided by strategy, tactics, and training must be translated into Unmanned Systems (UMS) Control Systems. It is a challenge to effectively control large numbers of UMS. The human operator must be freed to focus on high level perception, tactics, and strategy while the system automates lower level functions. The Intelligent Systems, Robotics, and Cybernetics (ISRC) Group at Sandia National Laboratories is working to develop a controls system for single-operator multiple unmanned systems control. Critical Characteristics * A single operator controls a heterogeneous team of several (three to six) unmanned ground (UGVs) and aerial vehicles (UAVs) performing multiple

234

Control system for a hybrid powertrain system  

DOE Patents [OSTI]

A vehicle includes a powertrain with an engine, first and second torque machines, and a hybrid transmission. A method for operating the vehicle includes operating the engine in an unfueled state, releasing an off-going clutch which when engaged effects operation of the hybrid transmission in a first continuously variable mode, and applying a friction braking torque to a wheel of the vehicle to compensate for an increase in an output torque of the hybrid transmission resulting from releasing the off-going clutch. Subsequent to releasing the off-going clutch, an oncoming clutch which when engaged effects operation of the hybrid transmission in a second continuously variable mode is synchronized. Subsequent to synchronization of the oncoming clutch, the oncoming clutch is engaged.

Naqvi, Ali K.; Demirovic, Besim; Gupta, Pinaki; Kaminsky, Lawrence A.

2014-09-09T23:59:59.000Z

235

Controlled mobility in sensor networks  

E-Print Network [OSTI]

between speed control and job scheduling subproblems . . .K. Gupta. Speed control and scheduling of data mules inselection, Speed control, and Job scheduling) and addresses

Sugihara, Ryo

2009-01-01T23:59:59.000Z

236

Protections: Sediment Control = Contaminant Retention  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sediment Control Protections: Sediment Control Contaminant Retention LANL maintains hundreds of wells, stream sampling stations and stormwater control structures to protect...

237

NETL: Mercury Emissions Control  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Mercury Emissions Control Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Mercury Emissions Control Innovations for Existing Plants Mercury Emissions Control NETL managed the largest funded research program in the country to develop an in-depth understanding of fossil combustion-based mercury emissions. The program goal was to develop effective control options that would allow generators to comply with regulations. Research focus areas included measurement and characterization of mercury emissions, as well as the development of cost-effective control technologies for the U.S. coal-fired electric generating industry. Control Technologies Field Testing Phase I & II Phase III Novel Concepts APCD Co-benefits Emissions Characterization

238

CHSP: HAZARD CONTROLS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

HYGIENE HYGIENE AND SAFETY PLAN CHSP SITE MAP HAZARD CONTROLS CONTROLS FOR HAZARDOUS MATERIALS arrow image WORK PRACTICE CONTROLS arrow image CHEMICAL STORAGE GUIDELINES DECOMISSIONING LAB AND SHOP SPACES SPECIFIC CONTROLS AND PROCEDURES arrow image EMERGENCY PROCEDURES AND EQUIPMENT arrow image APPENDICES arrow image FAQs QUESTIONS Search the CHSP: > Go spacer image EH&S Home PUB 3000 LBNL Home LBNL A-Z Index LBNL Search LBNL Phone Book Privacy & Security Notice spacer spacer image spacer image spacer image HAZARD CONTROLS This section discusses control procedures for limiting employee exposure to chemical hazards. Technical Areas Technical areas include laboratories, shops, workrooms, and similar areas where non-administrative activities are performed. For the purpose of the

239

Controlled Nuclear Fusion Reactions  

Science Journals Connector (OSTI)

... THE presentation of full and authoritative accounts of research on controlled nuclear fusion reactions was a major feature of the second Geneva Conference on the Peaceful Uses of ...

R. S. PEASE

1958-10-18T23:59:59.000Z

240

Fuel control system  

SciTech Connect (OSTI)

A fuel control system is described comprising: a fuel rack movable in opposite fuel-increasing and fuel-decreasing directions; a rack control member movable in opposite fuel-increasing and fuel-decreasing directions; servo system means for moving the fuel rack in response to movement of the rack control member an electrically energizable member movable in opposite fuel-increasing and fuel-decreasing directions, the electrically energizable member being urged to move in its fuel-decreasing direction when energized; first coupling means for connecting the electrically energizable member to the rack control member to move the rack control member in its fuel-decreasing direction in response to movement of the electrically energizable member in its fuel-decreasing direction; a mechanical governor control having a member movable in opposite fuel-increasing and fuel-decreasing directions; second coupling means for connecting the mechanical governor to the rack control member to move the rack control member in its fuel-decreasing direction in response to movement of the mechanical governor member in its fuel-decreasing direction; bias means for biasing the rack control member to move in its fuel-increasing direction.

Staniak, W.A.; Samuelson, R.E.; Moncelle, M.E.

1986-10-14T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Device Oriented Project Controller  

SciTech Connect (OSTI)

This proposal is directed at the issue of developing control systems for very large HEP projects. A de-facto standard in accelerator control is the Experimental Physics and Industrial Control System (EPICS), which has been applied successfully to many physics projects. EPICS is a channel based system that requires that each channel of each device be configured and controlled. In Phase I, the feasibility of a device oriented extension to the distributed channel database was demonstrated by prototyping a device aware version of an EPICS I/O controller that functions with the current version of the channel access communication protocol. Extensions have been made to the grammar to define the database. Only a multi-stage position controller with limit switches was developed in the demonstration, but the grammar should support a full range of functional record types. In phase II, a full set of record types will be developed to support all existing record types, a set of process control functions for closed loop control, and support for experimental beam line control. A tool to configure these records will be developed. A communication protocol will be developed or extensions will be made to Channel Access to support introspection of components of a device. Performance bench marks will be made on both communication protocol and the database. After these records and performance tests are under way, a second of the grammar will be undertaken.

Dalesio, Leo; Kraimer, Martin

2013-11-20T23:59:59.000Z

242

Shore Erosion Control (Maryland)  

Broader source: Energy.gov [DOE]

The Department of Natural Resources is responsible for creating and implementing a program designed to minimize shore erosion through education, erosion control projects, promulgate regulations,...

243

Unclassified Controlled Nuclear Information  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

To prevent unauthorized dissemination of Unclassified Controlled Nuclear Information (UCNI). Cancels DOE 5635.4 and DOE 5650.3A

1995-09-25T23:59:59.000Z

244

Stream Control Transmission Protocol  

Science Journals Connector (OSTI)

This document describes the Stream Control Transmission Protocol (SCTP). SCTP is designed to transport PSTN signaling messages over IP networks, but is capable of broader applications.

R. Stewart; Q. Xie; K. Morneault; C. Sharp; H. Schwarzbauer; T. Taylor; I. Rytina; M. Kalla; L. Zhang; V. Paxson

2000-10-01T23:59:59.000Z

245

Controlling Graphene's Electronic Structure  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Controlling Graphene's Electronic Structure Print Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in...

246

Controlling Graphene's Electronic Structure  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Controlling Graphene's Electronic Structure Print Wednesday, 25 April 2007 00:00 Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has...

247

Management Control Program  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

To establish requirements and responsibilities for the Department of Energy Management Control Program. Cancels DOE O 413.1. Canceled by DOE O 413.1B.

2002-04-18T23:59:59.000Z

248

Optimizing Control- A Survey  

E-Print Network [OSTI]

Ipulated Inpute teL point.. planl pIInm.t.erl --_ Figure 2: The Optimizing Control Scheme Figure 2 shows a fairly general arrangement of func tional units, the blocks, and the signal path connecting them. On the lowest level is the plant and the controller... performing the regulatory control of the plant. These two parts form the superblock "controlled plant". The optimizer is on the next higher level. It forms together with the "con trolled plant" the superblock "optimized plant" which is again manipulated...

Preisig, H. A.

249

Internal Controls Evaluations  

Broader source: Energy.gov (indexed) [DOE]

assurance reviews need to be completed prior to the submission of quarterly and annual reports. Page | 6 Table 1: DOE Internal Controls Assessment Process Important Dates Date...

250

Radiation Control (Virginia)  

Broader source: Energy.gov [DOE]

The Department of Health is responsible for regulating radiation and radioactive materials in the Commonwealth of Virginia. Although the Department's Radiation Control Program primarily focuses on...

251

Virtual Control System Environment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Control System Environment Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin...

252

A robust control strategy for combining DCV control with economizer control  

Science Journals Connector (OSTI)

Combining demand controlled ventilation (DCV) control and economizer control achieves acceptable and even better indoor air quality with minimum coil energy consumption. The control instability during the transition processes between different control modes are among the major difficulties faced when utilizing economizer control and when combining DCV control with economizer control in applications. A robust control strategy, using freezing, gain scheduling, integral term reset and feedback transition control for different transition processes, is developed for addressing these problems. They are evaluated on an air handling unit (AHU) using various simulation tests. The test results demonstrate that the robust control strategy allows stable and robust AHU control.

Shengwei Wang; Xinhua Xu

2002-01-01T23:59:59.000Z

253

Efficiency Improvement of an IPMSM using Maximum Efficiency Operating Strategy  

E-Print Network [OSTI]

, Joachim Böcker Paderborn University Department of Power Electronics and Electrical Drives 33095 Paderborn ma- chines (IPMSM) are preferably used for traction drives in electric vehicles in the machine control. Keywords-- Automotive application, Control of Drive, Electrical Drive, Efficiency

Paderborn, Universität

254

Burner control system  

SciTech Connect (OSTI)

A burner control apparatus for use with a furnace installation that has an operating control to produce a request for burner operation, a flame sensor to produce a signal when flame is present in the monitored combustion chamber, and one or more devices for control of ignition and/or fuel flow. The burner control apparatus comprises lockout apparatus for de-energizing the control apparatus, a control device for actuating the ignition and/or fuel control devices, and a timing circuit that provides four successive and partially overlapping timing intervals of precise relation, including a purge timing interval, a pilot ignition interval, and a main fuel ignition interval. The present invention further includes a burner control system which verifies the proper operation of certain sensors in a burner or furnace including particularly the air flow sensor. Additionally, the present system also prevents an attempt to ignite a burner if a condition is detected which indicates that the air flow sensor has been bypassed or wedged in the actuated position.

Cade, P.J.

1981-01-06T23:59:59.000Z

255

Control for Actuator Arrays  

Science Journals Connector (OSTI)

Actuator arrays are planar arrangements of simple actuators that cooperate to translate and orient objects. This paper derives the equations of motion for manipulating an object in stick/slip contact with the actuators. A controller derived from kinematics ... Keywords: actuator arrays, distributed control, distributed manipulation, hybrid systems

Mark Bedillion; William Messner

2009-07-01T23:59:59.000Z

256

Control of Records  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Control of Records Process 11_0304 Page 1 of 6 3 Control of Records Process 11_0304 Page 1 of 6 EOTA - Business Process Document Title: Control of Records Process Document Number P-003 Rev 11_0304 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: Q-001, Quality Manual Notify of Changes: EOTA Employees Referenced Document(s): REG-003, Records Register P-003 Control of Records Process 11_0304 Page 2 of 6 Revision History: Rev. Description of Change A Initial Release 08_0805 Added Integration Group to Section III. 11_0304 Defined Record Creator and New Record for clarity and swapped Step 3.0 and 4.0 P-003 Control of Records Process 11_0304 Page 3 of 6 I. Purpose To describe the process for how records are established and maintained to provide evidence of conformity to requirements and

257

Surveillance Guides - Hazards Control  

Broader source: Energy.gov (indexed) [DOE]

Hazards Control Hazards Control 1.0 Objective The objective of this surveillance is to evaluate the effectiveness of the contractor's programs and policy for establishing controls to mitigate hazards affecting the public, worker, and environment. 2.0 References 2.1 DOE 4330.4B Maintenance Management Program 2.2 48 CFR 1970.5204-2 Department of Energy Acquisition Regulations 3.0 Requirements Implemented This surveillance is conducted to verify implementation of DOE 450.4-1A Volume 2 Appendix E core expectation #3 (CE II-3). CE II-3: An integrated process has been established and is utilized to develop controls which mitigate the identified hazards present within a facility or activity. The set of controls ensure adequate protection of the public, worker, and the environment and are established as agreed upon by DOE.

258

DOE Mercury Control Research  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mercury Control Research Mercury Control Research Air Quality III: Mercury, Trace Elements, and Particulate Matter September 9-12, 2002 Rita A. Bajura, Director National Energy Technology Laboratory www.netl.doe.gov 169330 RAB 09/09/02 2 Potential Mercury Regulations MACT Standards * Likely high levels of Hg reduction * Compliance: 2007 Clean Power Act of 2001 * 4-contaminant control * 90% Hg reduction by 2007 Clear Skies Act of 2002 * 3-contaminant control * 46% Hg reduction by 2010 * 70% Hg reduction by 2018 * Hg emission trading President Bush Announcing Clear Skies Initiative February 14, 2002 169330 RAB 09/09/02 3 Uncertainties Mercury Control Technologies * Balance-of-plant impacts * By-product use and disposal * Capture effectiveness with low-rank coals * Confidence of performance 169330 RAB 09/09/02 4

259

Residential Humidity Control Strategies  

Broader source: Energy.gov (indexed) [DOE]

Residential Humidity Control Strategies Residential Humidity Control Strategies Armin Rudd Residential Energy Efficiency Stakeholder Meeting 2/29 - 3/2/2012 Austin, Texas 2 Residential Energy Efficiency Stakeholder Meeting 2/29 - 3/2/2012 Austin, Texas Humidity control goals  Comfort, and Indoor Air Quality  Control indoor humidity year-around, just like we do temperature  Durability and customer satisfaction  Reduce builder risk and warranty/service costs 2 3 Residential Energy Efficiency Stakeholder Meeting 2/29 - 3/2/2012 Austin, Texas Humidity control challenges 1. In humid cooling climates, there will always be times of the year when there is little sensible cooling load to create thermostat demand but humidity remains high * Cooling systems that modify fan speed and temperature set point based on humidity can help but are still limited

260

Cyclic control stick  

DOE Patents [OSTI]

A cyclic control stick of the type used in helicopters for reducing the safety hazards associated with such a mechanism in the event of a crewman being thrown violently into contact with the cyclic control stick resulting from a crash or the like. The cyclic control stick is configured to break away upon the exertion of an impact force which exceeds a predetermined value and/or is exerted for more than a momentary time duration. The cyclic control stick is also configured to be adjustable so as to locate the grip thereof as far away from the crewman as possible for safety reasons without comprising the comfort of the crewman or the use of the control stick, and a crushable pad is provided on the top of the grip for impact energy absorbing purposes.

Whitaker, Charles N. (2834 S. Extension Rd., No. 2024, Mesa, AZ 85202); Zimmermann, Richard E. (425 E. Greenway, Tempe, AZ 85282)

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

POSITIVE TRAIN CONTROL  

E-Print Network [OSTI]

Abstract Positive train control (PTC) is a modern system of monitoring and controlling train movements to provide advanced safety. This system uses the latest technology in mobile wireless communication. In Sept 2008, the US Congress considered a new rail safety law that sets a deadline of 2015 for implementation of positive train control (PTC) technology across most of the U.S. rail network. The bill was developed in response to the collision of a Metro link passenger train and a Union Pacific freight train Sept. 12 in California, which resulted in the deaths of 25 and injuries to more than 135 Metrolink passengers.

Suresh Badugu; Anoosha Movva

262

Fuzzy Control PI vs. Fuzzy PI-Control  

E-Print Network [OSTI]

Fuzzy Control PI vs. Fuzzy PI-Control Olaf Wolkenhauer Control Systems Centre UMIST o 3 Fuzzy PI-Controller 6 4 Example: First-Order System with Dead-Time 15 4.1 Fuzzy Rule-Base . . . . . . . . . . . . . . . . . . . . . 17 4.2 Centre Average Defuzzification . . . . . . . . . . . . . 18 4.3 Control Surface: Zadeh Logic

Rostock, Universität

263

Feedback Control of Microstate to Control Macrostate Properties  

E-Print Network [OSTI]

Feedback Control of Microstate to Control Macrostate Properties of Controllable Fluids by John R. Lloyd and Clark J. Radcliffe Department of Mechanical Engineering Michigan State University East Lansing, MI 48824-1226 ABSTRACT Controllable fluids are those fluids whose properties can be controlled

Radcliffe, Clark J.

264

Control of External Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Control of External Documents Process 11_0304 Page 1 of 5 2 Control of External Documents Process 11_0304 Page 1 of 5 EOTA - Business Process Document Title: Control of External Documents Process Document Number P-002 Rev 11_0304 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: Q-001, Quality Manual Notify of Changes: EOTA Employees Referenced Document(s): REG-002, External Document Register P-002 Control of External Documents Process 11_0304 Page 2 of 5 Revision History: Rev. Description of Change A Initial Release 11_0304 Changed revision format from alpha character to numbers; modified process to include a step directing addition to REG-002 External Document Register and changed verbiage to clarify and more accurately reflect current process.

265

Media Inventory Control  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 Media Inventory Control 11_0406 Page 1 of 5 8 Media Inventory Control 11_0406 Page 1 of 5 EOTA - Business Process Document Title: Media Inventory Control Document Number: ITTP-018 Rev. 09_0910 Document Owner: Janet Lee Backup Owner: Ben Aragon Approver(s): Melissa Otero Parent Document: Q-001, Quality Manual Notify of Changes: Referenced Document(s): MGTP-003 Customer Property, ISDP-002 Training Production Process, ADMP-001 Procurement Process, ADMP-003 Receiving/Inspection Process, ITTF-013 Media Requests ITTP-018 Media Inventory Control 11_0406 Page 2 of 5 Revision History: Rev. Description of Change A Initial Release B Added use of ITTF-013, Media Requests (SMS Records) 08_0904 Changed Media Specialist to Online Learning support Specialist (OLSS). Modified process to better fit actual media request process.

266

Control the Present  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Control the Present Image of water sampling trip embarking downstream from Otowi Bridge onto the Rio Grande with text overlay of 'How does LANL minimize the impacts from ongoing...

267

Controlling Rats and Mice  

E-Print Network [OSTI]

House rats and mice eat and contaminate human and animal food, and they damage and destroy property. This leaflet explains how to identify rats and mice by their droppings, runways, food crumbs and noises. Various control methods are discussed....

Texas Wildlife Services

2007-03-13T23:59:59.000Z

268

Spring 2014 Controls -1  

E-Print Network [OSTI]

Spring 2014 Controls - 1 A simple model for the electrical dynamics of a solenoid valve includes the coil resistance R in series with the coil inductance L, as indicated in the figure to the left

Virginia Tech

269

Water Pollution Control (Indiana)  

Broader source: Energy.gov [DOE]

The Indiana Department of Environmental Management and the Water Pollution Control Board are tasked with the prevention of pollution in the waters of the state. The Board may adopt rules and...

270

Adaptive Street Lighting Controls  

Broader source: Energy.gov [DOE]

This two-partDOE Municipal Solid-State Street Lighting Consortium webinar focused on LED street lighting equipped with adaptive control components. In Part I, presenters Amy Olay of the City of...

271

Mathematics in Control  

Science Journals Connector (OSTI)

......rather accurately kept constant by engine throttle movements proportional...in thrust. During flare-out, engine speed is reduced to idling while...swivel angles, or for example fuel consumption rate if thrust control is employed......

M. J. LIGHTHILL

1968-03-01T23:59:59.000Z

272

Controlling Blow Flies  

E-Print Network [OSTI]

Blow flies lay their eggs on animal remains and can spread disease. To control blow flies, it is important to remove dead animals and dispose of them properly, and to use effective insecticides when necessary....

Tomberlin, Jeffery K.

2005-10-05T23:59:59.000Z

273

Controlling Blow Flies (Spanish)  

E-Print Network [OSTI]

Blow flies lay their eggs on animal remains and can spread disease. To control blow flies, it is important to remove dead animals and dispose of them properly, and to use effective insecticides when necessary....

Tomberlin, Jeffery K.

2007-10-08T23:59:59.000Z

274

Digital Control for Automation  

Science Journals Connector (OSTI)

GREATER YIELDS OF BETTER QUALITY PRODUCTS at reduced costs: That's one way to look at automations goal. And among instruments for automation are data reduction systems (others: continuous process analyzers, computer elements, and control mechanisms). ...

1956-04-02T23:59:59.000Z

275

Radiation: Radiation Control (Indiana)  

Broader source: Energy.gov [DOE]

It is the policy of the state to encourage the constructive uses of radiation and to control its harmful effects. This section contains regulations pertaining to the manufacture, use,...

276

Snakes and Their Control  

E-Print Network [OSTI]

Many kinds of snakes live in Texas, but only a few are poisonous. This leaflet focuses on the control of poisonous snakes by altering their habitats, fencing, trapping, poisoning and shooting....

Texas Wildlife Services

2008-04-15T23:59:59.000Z

277

Quantum error control codes  

E-Print Network [OSTI]

QUANTUM ERROR CONTROL CODES A Dissertation by SALAH ABDELHAMID AWAD ALY AHMED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2008 Major... Subject: Computer Science QUANTUM ERROR CONTROL CODES A Dissertation by SALAH ABDELHAMID AWAD ALY AHMED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY...

Abdelhamid Awad Aly Ahmed, Sala

2008-10-10T23:59:59.000Z

278

Biological Control of Saltcedar  

E-Print Network [OSTI]

infesting the Pecos River has been treated recently with aerially applied herbicides. Plans are to expand this program to the Colorado River and other areas. Biological control can complement these herbicide programs, as the beetles can help suppress... saltcedar trees to justify the cost of aerial sprays. Cooperating agencies The Saltcedar Biological Control Program in Texas is a cooperative effort among many federal, state, public and private agencies and groups. The USDA-Agricultural Research Service...

Knutson, Allen E.; DeLoach, C. Jack; Muegge, Mark A.

2003-10-21T23:59:59.000Z

279

Optically Controlled Jitter Generator  

E-Print Network [OSTI]

A new simple circuit producing random pulse trains is proposed and experimentally studied. The circuit is composed of an operational amplifier and two feedback links, one of which comprises two photodiodes. The photodiodes are responsible for nonlinearity in the feedback. By varying the illumination it is possible to control the nonlinearity in the photodiode current-voltage characteristics and change the degree of randomness in the oscillations. The circuit's simplicity and optical control make it attractive for coupled map lattices.

Julia Manasson; V. A. Manasson

2006-08-17T23:59:59.000Z

280

Patch Panel Control Room  

E-Print Network [OSTI]

Patch Panel CCR-EE-092 Control Room CCR-EE-100 Control Room Optic Patch Rack CSS-EE-954 Junction (PC Fault Event) Patch Panel CCC-EE-209 Junction Area E O PC Fault Event PC Fault Event PC Fault Event CNBS-EE-358 138' Level Patch Panel CNBS-EE-389 138' Level E E E Crates 9, 19 COH1-EE-651 FCPC Crates 21

Princeton Plasma Physics Laboratory

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Overflow control valve  

DOE Patents [OSTI]

An overflow control valve for use in a liquid sodium coolant pump tank which valve can be extended to create a seal with the pump tank wall or retracted to break the seal thereby accommodating valve removal. An actuating shaft which controls valve disc position also has cams which bear on roller surfaces to force retraction of a sliding cylinder against spring tension to retract the cylinder from sealing contact with the pump tank.

Hundal, Rolv (Hempfield, PA); Kessinger, Boyd A. (Murrysville, PA); Parlak, Edward A. (North Huntingdon, PA)

1984-07-24T23:59:59.000Z

282

Pit disassembly motion control  

SciTech Connect (OSTI)

A Department of Energy (DOE) Pit Disassembly and Conversion Facility (PDCF) is being designed for the Savannah River Site in South Carolina. The facility will recover plutonium from excess nuclear weapon pits defined in START II and START III treaties. The plutonium will be stored and used to produce mixed oxide reactor fuel at another new DOE facility. Because of radiation dose issues, much of the pit disassembly work and material transfer will be automated. Automated material handling systems will interface with disassembly lathes, conversion reactors that produce oxide for storage, robotic container welding stations, vault retrieval systems, and nondestructive assay (NDA) instrumentation. The goal is to use common motion control hardware for material transfer and possibly common motion controllers for the unique PDCF systems. The latter is complicated by the different directions manufactures are considering for distributed control, such as Firewire, SERCOS, etc., and by the unique control requirements of machines such as lathes compared to controls for an integrated NDA system. The current design approach is to standardize where possible, use network cables to replace wire bundles where possible, but to first select hardware and motion controllers that meet specific machine or process requirements.

Christensen, L. (Lowell); Pittman, P. C. (Pete C.)

2001-01-01T23:59:59.000Z

283

Decentralized electric drives in the automobile  

Science Journals Connector (OSTI)

Decentralized control units and electric motors for brake assistant, engine management, climate control system, or chassis stabilization are already being used to control a variety of functions in the vehicle....

Andreas Rau

2006-11-01T23:59:59.000Z

284

Nuclear reactor control column  

DOE Patents [OSTI]

The nuclear reactor control column comprises a column disposed within the nuclear reactor core having a variable cross-section hollow channel and containing balls whose vertical location is determined by the flow of the reactor coolant through the column. The control column is divided into three basic sections wherein each of the sections has a different cross-sectional area. The uppermost section of the control column has the greatest cross-sectional area, the intermediate section of the control column has the smallest cross-sectional area, and the lowermost section of the control column has the intermediate cross-sectional area. In this manner, the area of the uppermost section can be established such that when the reactor coolant is flowing under normal conditions therethrough, the absorber balls will be lifted and suspended in a fluidized bed manner in the upper section. However, when the reactor coolant flow falls below a predetermined value, the absorber balls will fall through the intermediate section and into the lowermost section, thereby reducing the reactivity of the reactor core and shutting down the reactor.

Bachovchin, Dennis M. (Plum Borough, PA)

1982-01-01T23:59:59.000Z

285

Aquatic plant control research  

SciTech Connect (OSTI)

The Northwest region of the United States contains extensive canal systems that transport water for hydropower generation. Nuisance plants, including algae, that grow in these systems reduce their hydraulic capacity through water displacement and increased surface friction. Most control methods are applied in an ad hoc fashion. The goal of this work is to develop cost-effective, environmentally sound, long-term management strategies to prevent and control nuisance algal growth. This paper reports on a multi-year study, performed in collaboration with the Pacific Gas & Electric Company, to investigate algal growth in their canal systems, and to evaluate various control methodologies. Three types of controls, including mechanical, biological and chemical treatment, were selected for testing and evaluation. As part of this study, water quality data were collected and algal communities were sampled from numerous stations throughout the distribution system at regular intervals. This study resulted in a more comprehensive understanding of conditions leading to the development of nuisance algal growth, a better informed selection of treatment plans, and improved evaluation of the effectiveness for the control strategies selected for testing.

Pryfogle, P.A.; Rinehart, B.N. [Idaho National Engineering Lab., Idaho Falls, ID (United States); Ghio, E.G. [Pacific Gas & Electric Company, San Francisco, CA (United States). Hydro Generation Engineering

1997-05-01T23:59:59.000Z

286

MANAGEMENT CONTROL SYSTEM IN PUBLIC  

E-Print Network [OSTI]

1 MANAGEMENT CONTROL SYSTEM IN PUBLIC ADMINISTRATION: BEYOND RATIONAL MYTHS Nicolas Berland of practices around their management control systems. Despite some apparent failures, the implemented systems organizations have developed management control systems. Historically, these systems have been invented

Paris-Sud XI, Université de

287

Transactive Control and Coordination  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Transactive Control and Coordination Transactive Control and Coordination Speaker(s): Robert Pratt Date: March 15, 2013 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Mary Ann Piette Transactive control and coordination is PNNL's approach to operationalizing smart grid distributed assets. It is a specific case of the general class of techniques the GridWise Architecture Council refers to as transactive energy - "techniques for managing the generation, consumption or flow of electric power within an electric power system through the use of economic- or market-based constructs, with full consideration of grid reliability constraints. The term "transactive" comes from considering that decisions are made based on a value. These decisions may be analogous to or literally economic

288

2006 environmental controls conference  

SciTech Connect (OSTI)

The two topics covered at the conference were: selective catalytic reduction (SCR) and selection non-catalytic reduction (SNCR) for NOx control, and techniques for managing sulfur trioxide. A total of 45 presentations are summarized on the NETL website of which 22 are available in full. These include keynote addresses for each of the two major topics. In addition four poster papers are listed. The papers are arranged in sections headed: regulatory considerations; overview of SCR/SNCR; managing SCR catalysts; gas monitoring and analysis; predictive performance tools; non-coal applications; layered SCR; flow distribution and modeling; hybrid systems; innovative applications; SO{sub 2} conversion to SO{sub 3}; SO{sub 3} overview; acid gas control issues; sorbent injection for acid gas migration; and effects of SO{sub 3} on mercury control.

NONE

2006-07-01T23:59:59.000Z

289

Dynamic PID loop control  

SciTech Connect (OSTI)

The Horizontal Test Stand (HTS) SRF Cavity and Cryomodule 1 (CM1) of eight 9-cell, 1.3GHz SRF cavities are operating at Fermilab. For the cryogenic control system, how to hold liquid level constant in the cryostat by regulation of its Joule-Thompson JT-valve is very important after cryostat cool down to 2.0 K. The 72-cell cryostat liquid level response generally takes a long time delay after regulating its JT-valve; therefore, typical PID control loop should result in some cryostat parameter oscillations. This paper presents a type of PID parameter self-optimal and Time-Delay control method used to reduce cryogenic system parameters oscillation.

Pei, L.; Klebaner, A.; Theilacker, J.; Soyars, W.; Martinez, A.; Bossert, R.; DeGraff, B.; Darve, C.; /Fermilab

2011-06-01T23:59:59.000Z

290

Voltage controlled current source  

DOE Patents [OSTI]

A seven decade, voltage controlled current source is described for use in testing intermediate range nuclear instruments that covers the entire test current range of from 10 picoamperes to 100 microamperes. High accuracy is obtained throughout the entire seven decades of output current with circuitry that includes a coordinated switching scheme responsive to the input signal from a hybrid computer to control the input voltage to an antilog amplifier, and to selectively connect a resistance to the antilog amplifier output to provide a continuous output current source as a function of a preset range of input voltage. An operator controlled switch provides current adjustment for operation in either a real-time simulation test mode or a time response test mode.

Casne, Gregory M. (Pittsburgh, PA)

1992-01-01T23:59:59.000Z

291

Mercury control in 2009  

SciTech Connect (OSTI)

Although activated carbon injection (ACI) has been proven to be effective for many configurations and is a preferred option at many plants sufficient quantities of powdered activated coking (PAC) must be available to meet future needs. The authors estimate that upcoming federal and state regulations will result in tripling the annual US demand for activated carbon to nearly 1.5 billion lb from approximately 450 million lb. Rapid expansion of US production capacity is required. Many PAC manufacturers are discussing expansion of their existing production capabilities. One company, ADA Carbon Solutions, is in the process of constructing the largest activated carbon facility in North America to meet the future demand for PAC as a sorbent for mercury control. Emission control technology development and commercialization is driven by regulation and legislation. Although ACI will not achieve > 90% mercury control at every plant, the expected required MACT legislation level, it offers promise as a low-cost primary mercury control technology option for many configurations and an important trim technology for others. ACI has emerged as the clear mercury-specific control option of choice, representing over 98% of the commercial mercury control system orders to date. As state regulations are implemented and the potential for a federal rule becomes more imminent, suppliers are continuing to develop technologies to improve the cost effectiveness and limit the balance of plant impacts associated with ACI and are developing additional PAC production capabilities to ensure that the industry's needs are met. The commercialisation of ACI is a clear example of industry, through the dedication of many individuals and companies with support from the DOE and EPRI, meeting the challenge of developing cost-effectively reducing emissions from coal-fired power plants. 7 refs., 1 fig.

Sjostrom, S.; Durham, M.; Bustard, J.; Martin, C. [ADA Environmental Solutions, Littleton, CO (United States)

2009-07-15T23:59:59.000Z

292

Cost Controls Pay Off Big  

Science Journals Connector (OSTI)

Cost Controls Pay Off Big ... Biggest plus was the general improvement in the economy; but to this must be added successful efforts by industry to control costs. ...

1959-02-16T23:59:59.000Z

293

Standards for Contamination Control Areas  

Science Journals Connector (OSTI)

The objective of standards and specifications used for contamination control is to establish controls and definitions that will allow satisfactory cleanroom construction and good product fabrication within cleanr...

Alvin Lieberman

1992-01-01T23:59:59.000Z

294

January 2007 SECURITY CONTROLS FOR  

E-Print Network [OSTI]

for their information systems. Security controls are the management, operational, and technical safeguards for their information systems. Security controls are the management, operational, and technical safeguards

295

Superconducting VAR control. [Patent application  

DOE Patents [OSTI]

Static VAR control means are described employing an asymmetrically controlled Graetz bridge and a superconducting direct current coil having low losses and low cost characteristics.

Boenig, H.J.; Hassenzahl, W.V.

1980-12-05T23:59:59.000Z

296

Lighting Group: Controls: IBECS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

IBECS IBECS Integrated Building Environmental Communications System Objective The overall technical goal of the IBECS project is to develop an integrated building equipment communications network that will allow appropriate automation of lighting and envelope systems to increase energy efficiency, improve building performance, and enhance occupant experience in the space. This network will provide a low-cost means for occupants to control local lighting and window systems, thereby improving occupant comfort, satisfaction and performance. A related goal is to improve existing lighting control components and accelerate development of new daylighting technologies that will allow daylighting to be more extensively applied to a larger proportion of building floor space.

297

Material control evaluation  

SciTech Connect (OSTI)

Changes in the Department of Energy`s (DOE) scope of work have stimulated several laboratories and commercial companies to develop and apply technology to enhance nuclear material control. Accountability, inventory, radiation exposure, and insider protection concerns increase as many DOE facilities require increased storage. This paper summarizes a study of the existing material control technologies. The goal of the study is to identify, characterize, and quantify the trade-offs associated with using these technologies to provide real-time information on stored nuclear material that in turn supports decreasing the frequency of inventories conducted by site personnel.

Waddoups, I.G.; Anspach, D.A. [Sandia National Labs., Albuquerque, NM (US); Abbott, J.A. [EG& G Kirtland Operations, Albuquerque, NM (US)

1993-07-01T23:59:59.000Z

298

Automotive Control Systems: For Engine, Driveline, and Vehicle  

Science Journals Connector (OSTI)

Many engineers, working in the field of automotive control systems and mechatronics, as well as lecturing at technical universities, will welcome this book. It gives a broad insight view of the latest automotive technologies in use which have been adopted over a long period of time from research activities at universities and in industry. About twenty years ago the microcomputer started to revolutionize the possibility of introducing intelligence in systems, for example in the form of advanced control algorithms. By chance, this incredible evolution coincided with increasing environmental demands to reduce pollution and oil consumption and to contribute one of the major tools to meet those demands. This may have been one of the reasons why the automotive industry was rather early in introducing the new technique. However, it would have been interesting if the book had given a short historic review. In fact the authors do not rule out that the modern four-stroke engine in a car may work as an air-cleaning filter, and after going through the part describing the lambda-control together with the catalytic conversion, it is hard to argue against it, at least when the vehicle is running at constant speed. Reading this book you realize that the times are long gone when you could use a screwdriver and feeler gauge to adjust the ignition of your car engine. The subtitle of the book is engine, driveline and vehicle and the book is also divided in that logical order. In the first part, after describing the thermodynamic cycles of different engine types, spark ignited and diesel, the basic engine operations are presented and the reader is given a theoretical insight into what can be done to enhance the performance of the engine. If you have forgotten the basic laws of thermodynamics there is an appendix to recapitulate (however, there is no explanation of the word stoichiometric in case you are not familiar with that). You will also find information on the efficiency of different fuels as well as the efficiency of engines derived from crankshaft motions and thermodynamics. The next chapter describes how the derived models of engine management are used for advanced engine control. The chapter also presents simulation results as well as measurement results. What is especially interesting to read about is how effectively the catalytic conversion works together with lambda-control at stoichiometric combustion of the spark-ignited engine. This is thoroughly explained in the text but a curious reader will not get any information about problems or if there are ongoing activities with emission reduction concerning its competitor, the diesel engine. It is understandable that the book concentrates on the most popular automotive engines but an interested reader might miss that there is nothing in the book that covers the state-of-the-art spark-ignited two-stroke engine. The second part of the book covers the driveline, that is, the parts that transfer the torque of the engine to the wheels. The initial chapters cover the derivation of general models of driveline, basically by applying Newton's second law of motion. Those models are then applied to the modern truck for simulation of the dynamical behaviour. After validation, the appropriate simulation model is used in designing a control system for a transmission that does not need a clutch for shifting gears. Consequently, this part of the book is very interesting since, most likely, one of the authors has worked in close cooperation with the Swedish truck manufacturer Scania. He describes the development behind this unique and patented transmission system. The third and last part of the book deals with the vehicle itself. Initially, geometrical vehicle models of different complexity, the two-track and single-track, are described. They are used to derive the forces acting on the wheels due to road friction and road profile, as well as the driver's input, such as steering and braking. The book claims to have 291 illustrations. The third part of the book, however, could have benefited from more

U Kiencke and L Nielsen

2000-01-01T23:59:59.000Z

299

Torras: Robot Arm Control 1 Robot Arm Control  

E-Print Network [OSTI]

Torras: Robot Arm Control 1 Robot Arm Control Carme Torras Institut de Rob#18;otica i Inform#18;atica Industrial (CSIC-UPC) Llorens i Artigas 4-6, 08028-Barcelona. RUNNING HEAD: Robot Arm Control: 34-93-401.57.50 e-mail: ctorras@iri.upc.es #12; Torras: Robot Arm Control 2 INTRODUCTION A robot

Torras, Carme

300

Redundant marine engine control system  

SciTech Connect (OSTI)

An electro-mechanical engine control system is described for the shift and throttle functions of marine engines which comprises an electronically-controlled mechanical servo control means coupleable to the shift and throttle functions of a marine engine; a manually-operable ship-board operator engine shift and throttle control means; and an electro-mechanical transfer means coupled to the operator control means and to the servo control means for transferring operator shift and throttle settings to the servo control means, the transfer means being both electronically and mechanically coupled to the servo control means and being constructed and arranged whereby the transfer means will mechanically actuate the servo control means in the absence of electrical power and will electronically actuate the servo control means when electrical power is applied to the servo control means; the transfer means including coupling means preferentially electrically-coupling the operator control means to the servo control means, the coupling means being so constructed and arranged to automatically mechanically-couple the operator control means to the servo control means in the event of electrical power failure and to automatically electrically-couple the operator control means to the servo control means when electrical power is restored.

Burkenpas, R.W.

1993-06-29T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Controlling Graphene's Electronic Structure  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Controlling Graphene's Electronic Structure Print Controlling Graphene's Electronic Structure Print Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in ultrafast electronic transistors. It exhibits high conductivity and an anomalous quantum Hall effect (a phenomenon exhibited by certain semiconductor devices at low temperatures and high magnetic fields). Among its novel properties, graphene's electrical charge carriers (electrons and holes) move through a solid with effectively zero mass and constant velocity, like photons. Graphene's intrinsically low scattering rate from defects implies the possibility of a new kind of electronics based on the manipulation of electrons as waves rather than particles. The primary technical difficulty has been controlling the transport of electrical charge carriers through the sheet. This area of research is known as bandgap engineering. While bandgap engineering is the basis of semiconductor technology, it is only now being applied to graphene. Using angle-resolved photoemission spectroscopy (ARPES) at ALS Beamline 7.0.1, a team of scientists from the ALS and Germany characterized the electronic band structure and successfully controlled the gap between valence and conduction bands in a bilayer of graphene thin films deposited on a substrate of silicon carbide. This was done by doping one sheet with adsorbed potassium atoms, creating an asymmetry between the two layers.

302

Controlled Nuclear Fusion  

Science Journals Connector (OSTI)

... papers have an English abstract. Translations of the Russian papers have already been published in Nuclear Fusion. It is a great pity, for Western readers at least, that the Russian ... two volumes are obviously going to be standard reference books for those interested in controlled nuclear fusion. They also contain a large amount of information, particularly on the theoretical side, ...

GEORGE ROWLANDS

1970-01-31T23:59:59.000Z

303

Electronic turbocharger control  

SciTech Connect (OSTI)

A turbocharger is described comprising: a turbine adapted to be rotatably driven by exhaust gas flow from an engine; a compressor rotatably driven by the turbine and adapted to deliver pressurized airflow to the engine; housing means for defining a turbine gas inlet and outlet to direct gas flow to and from the turbine, and for defining a compressor air inlet and outlet to direct airflow to and from the compressor, the housing means further defining a wastegate passage interconnecting the turbine gas inlet and outlet in bypassing relation the turbine; a valve in the wastegate passage for modulating the volume of gas flow therethrough in bypassing relation to the turbine, the valve arranged such that pressure of gas flow in the turbine gas inlet urge the valve toward an open position; an actuator operably engaging the valve for moving the latter; biasing means operably engaging the actuator for urging the valve toward a closed position; means for generating an electrical control signal in response to an engine operating parameter; and control means responsive to the electrical control signal for engaging and disengaging the actuator, the control means operable upon engaging the actuator to override the urgings of the biasing means and the turbine inlet pressure and hold the actuator and the valve stationary.

Elpern, D.G.

1987-04-14T23:59:59.000Z

304

Internal Control Program  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

To ensure sound internal controls and overall consistency in exercising the statutory authorities that vest in the Secretary, the Administrator, National Nuclear Security Administration (NNSA), and Department's Chief Financial Officer (CFO), and to implement the Federal Managers' Financial Integrity Act of 1982 and related central agency guidance. Cancels DOE O 413.1A.

2008-10-28T23:59:59.000Z

305

Tick Control (Spanish)  

E-Print Network [OSTI]

E-150S 5-02 Mike Merchant Extension Entomologist Texas Cooperative Extension The Texas A&M University System El Control de Garrapatas L as garrapatas son una plaga mordedora de forma aplanada que tiene ocho patas y a menudo se encuentra en las...

Merchant, Michael E.

2002-08-23T23:59:59.000Z

306

Thermophotovoltaic Spectral Control  

SciTech Connect (OSTI)

Spectral control is a key technology for thermophotovoltaic (TPV) direct energy conversion systems because only a fraction (typically less than 25%) of the incident thermal radiation has energy exceeding the diode bandgap energy, E{sub g}, and can thus be converted to electricity. The goal for TPV spectral control in most applications is twofold: (1) Maximize TPV efficiency by minimizing transfer of low energy, below bandgap photons from the radiator to the TPV diode. (2) Maximize TPV surface power density by maximizing transfer of high energy, above bandgap photons from the radiator to the TPV diode. TPV spectral control options include: front surface filters (e.g. interference filters, plasma filters, interference/plasma tandem filters, and frequency selective surfaces), back surface reflectors, and wavelength selective radiators. System analysis shows that spectral performance dominates diode performance in any practical TPV system, and that low bandgap diodes enable both higher efficiency and power density when spectral control limitations are considered. Lockheed Martin has focused its efforts on front surface tandem filters which have achieved spectral efficiencies of {approx}83% for E{sub g} = 0.52 eV and {approx}76% for E{sub g} = 0.60 eV for a 950 C radiator temperature.

DM DePoy; PM Fourspring; PF Baldasaro; JF Beausang; EJ Brown; MW Dashiel; KD Rahner; TD Rahmlow; JE Lazo-Wasem; EJ Gratrix; B Wemsman

2004-06-09T23:59:59.000Z

307

Motors Motor controllers  

E-Print Network [OSTI]

Aluminium frame Motors Motor controllers Ultrasonic multi-channel acquisition PC Tank Tank 400 600 800 1000 0 50 2 4 6 8 x 10 -3 r/r 0 Range (mm) Depth(mm) 25 /t Tand / or #12;Shallow water

308

Heliostat control system strategies  

SciTech Connect (OSTI)

The purpose of this study is to identify, evaluate, and recommend potential alternatives to methods currently employed in the control of and communication with a heliostat array in a solar thermal power plant. The principle goal of this study is to demonstrate the feasibility of reducing significantly the current projected costs for heliostat array communication, control and actuator subsystems. A number of alternatives to the present technique of using dedicated data transmission cables for communication between a central computer and heliostat computer are described in the paper. It appears that by converting to a radio frequency communication system or a carrier-current system that a number of problems (including cost) associated with dedicated data transmission cable can be avoided. To relieve the computing load of the central computer it is suggested that the heliostat microcomputer be given more direct responsibility for sun vector calculations and error compensation routines for each individual heliostat. By using the radio frequency or carriercurrent communication scheme, and increasing each heliostat computer's computing load, there will be a significant reduction of cost for control of the heliostat field for third generation solar thermal power plants. The results of this study indicate that the combined communication, control, and actuator subsystem costs can potentially be reduced to less than $500/heliostat (approximately $9/m/sup 2/); this is a significant reduction compared with the current projected corresponding composite costs of $1343/heliostat (approximately $25/m/sup 2/) for the second generation concept.

Pearson, J.; Chen, B.

1983-11-01T23:59:59.000Z

309

Control Engineering Practice ] (  

E-Print Network [OSTI]

of two-phase pipeline-riser systems at riser slugging conditions Espen Storkaasa,1 , Sigurd Skogestadb properties of a typical pipeline-riser system. Analysis of the model reveals a very interesting theoretically that riser slugging in pipeline-riser systems can be avoided with a simple control system

Skogestad, Sigurd

310

Adaptive sequential controller  

DOE Patents [OSTI]

An adaptive sequential controller (50/50') for controlling a circuit breaker (52) or other switching device to substantially eliminate transients on a distribution line caused by closing and opening the circuit breaker. The device adaptively compensates for changes in the response time of the circuit breaker due to aging and environmental effects. A potential transformer (70) provides a reference signal corresponding to the zero crossing of the voltage waveform, and a phase shift comparator circuit (96) compares the reference signal to the time at which any transient was produced when the circuit breaker closed, producing a signal indicative of the adaptive adjustment that should be made. Similarly, in controlling the opening of the circuit breaker, a current transformer (88) provides a reference signal that is compared against the time at which any transient is detected when the circuit breaker last opened. An adaptive adjustment circuit (102) produces a compensation time that is appropriately modified to account for changes in the circuit breaker response, including the effect of ambient conditions and aging. When next opened or closed, the circuit breaker is activated at an appropriately compensated time, so that it closes when the voltage crosses zero and opens when the current crosses zero, minimizing any transients on the distribution line. Phase angle can be used to control the opening of the circuit breaker relative to the reference signal provided by the potential transformer.

El-Sharkawi, Mohamed A. (Renton, WA); Xing, Jian (Seattle, WA); Butler, Nicholas G. (Newberg, OR); Rodriguez, Alonso (Pasadena, CA)

1994-01-01T23:59:59.000Z

311

21 - Milling Control  

Science Journals Connector (OSTI)

Publisher Summary This chapter discusses milling control. Brix graph curves are used to denote and compare mill control efficiency. The degree to which the values obtained in the mills approach the theoretical curve indicates how well each mill is doing its work. To establish these brix curves, the brix of back-roller juice is generally taken. In dry crushing mills, the brix of the feed-roller juice is higher. In wet crushing mills, on the contrary, it is the back-roller juice which has the higher brix. Mill control is based on an equation expressing the fact that the weight of material entering the milling plant is equal to the weight leaving, cane = imbibition water = mixed juice = bagasse. This equation though does not work out strictly correct in practice. The basic equation serves mainly to determine the weight of bagasse, the three other terms being generally weighed or measured. Also, before analysis, the bagasse, in turn, also loses a small fraction of its weight, which is generally negligible. One important method for milling control calculation is using the Hawaiian method.

E. HUGOT

2014-01-01T23:59:59.000Z

312

Design, implementation and preliminary evaluation of displacement and force control sticks on a flight simulator  

E-Print Network [OSTI]

in every pursuit of mine. NOMENCLATURE Symbols A/D adbp Analog to digital Analog L digital board pointer bhp Brake horse power Diameter of propellor D/A FML Digital to analog Flight mechanics laboratory fpm Feet per minute fps Feet per second... rpm Revolutions per minute vn Airspeed VASI VME Visual aid slope indicator VERSA module device Vertical velocity Distance from threshold Difference from mean Distance from centerline Denotes deviation from desired value Glide slope angle...

Venugopal, Ravinder

2012-06-07T23:59:59.000Z

313

Turbocharger control system  

SciTech Connect (OSTI)

A turbocharger control system is described for an engine having a turbocharger with a variable output compressor driven by a variable input turbine, the compressor boosting the pressure of an input manifold of the engine and the turbine being run from the exhaust gases of the engine. The control system consists of: a computing circuit including input circuit means for receiving input signals representative of operational parameters of the engine, programmable memory means for storing predetermined tabular data and sequential and computational instructions, processor means responsive to the memory means for receiving the input signals and generating output signals as a function of the input signals, tabular data, and instructions, and output circuit means for outputing the plurality of output signals, sensor means connected to the engine and the computing circuit for sensing the pressure in the manifold, the temperature of the exhaust gases, the speed of the engine, and position of the throttle, compressor and turbine actuators of the engine and generating signals representative thereof; and actuator means connected to the output circuit means for controlling the position of the actuators in response to predetermined ones of the output signals, respectively; the computing circuit, sensor means, and actuator means defining a turbine control loop for regulating the input of the exhaust gasses to the turbine as a function of the error difference between an optimum manifold pressure of the engine and the actual manifold pressure of the engine; and a compressor control loop for regulating the output of air flow from the compressor as a function of the speed and acceleration of the engine.

Fujawa, C.S.; Masteller, S.B.

1986-06-10T23:59:59.000Z

314

Intelligent Actuation Control Using Model-Free Adaptive Control Technology  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Intelligent Actuation Control Using Intelligent Actuation Control Using Model-Free Adaptive Control Technology Background The Advanced Research Sensors and Controls Program is leading the effort to develop sensing and control technologies and methods to achieve seamlessly integrated and intelligent power systems. The program is led by the U.S. Department of Energy (DOE) Office of Fossil Energy National Energy Technology Laboratory (NETL) and is implemented

315

Fuzzy logic in process control: A new fuzzy logic controller and an improved fuzzy-internal model controller.  

E-Print Network [OSTI]

??Two fuzzy controllers are presented. A fuzzy controller with intermediate variable designed for cascade control purposes is presented as the FCIV controller. An intermediate variable (more)

García Z., Yohn E

2006-01-01T23:59:59.000Z

316

Modular multivariable control improves hydrocracking  

SciTech Connect (OSTI)

Modular multivariable control (MMC), a system of interconnected, single process variable controllers, can be a user-friendly, reliable and cost-effective alternative to centralized, large-scale multivariable control packages. MMC properties and features derive directly from the properties of the coordinated controller which, in turn, is based on internal model control technology. MMC was applied to a hydrocracking unit involving two process variables and three controller outputs. The paper describes modular multivariable control, MMC properties, tuning considerations, application at the DCS level, constraints handling, and process application and results.

Chia, T.L.; Lefkowitz, I. [ControlSoft, Inc., Cleveland, OH (United States); Tamas, P.D. [Marathon Oil Co., Robinson, IL (United States)

1996-10-01T23:59:59.000Z

317

Unclassified Controlled Nuclear Information (UCNI) | Department...  

Energy Savers [EERE]

Unclassified Controlled Nuclear Information (UCNI) Unclassified Controlled Nuclear Information (UCNI) Welcome to the Unclassified Controlled Nuclear Information (UCNI) webpage....

318

Unclassified Controlled Nuclear Information Training | Department...  

Office of Environmental Management (EM)

Unclassified Controlled Nuclear Information Training Unclassified Controlled Nuclear Information Training Training Unclassified Controlled Nuclear Information for persons with...

319

Control power in perfect controlled teleportation via partially entangled channels  

E-Print Network [OSTI]

We analyze and evaluate perfect controlled teleportation via three-qubit entangled channels from the point of view of the controller. The key idea in controlled teleportation is that the teleportation is performed only with the participation of the controller. We calculate a quantitative measure of the controller's power and establish a lower bound on the control power required for controlled teleportation. We show that the maximally entangled GHZ state is a suitable channel for controlled teleportation of arbitrary single qubits - the controller's power meets the bound and the teleportation fidelity without the controller's permission is no better than the fidelity of a classical channel. We also construct partially entangled channels that exceed the bound for controlled teleportation of a restricted set of states called the equatorial states. We calculate the minimum entanglement required in these channels to exceed the bound. Moreover, we find that in these restricted controlled teleportation schemes, the partially entangled channels can outperform maximally entangled channels with respect to the controller's power. Our results provide a new perspective on controlled teleportation schemes and are of practical interest since we propose useful partially entangled channels.

Xi-Han Li; Shohini Ghose

2014-10-05T23:59:59.000Z

320

Johnson Controls: Editorial | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Editorial Johnson Controls: Editorial "It's time we control our own destiny" Johnson Controls: Editorial More Documents & Publications Johnson Controls: EISA Presentation Johnson...

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Securing Control Systems Modems  

Broader source: Energy.gov (indexed) [DOE]

Recommended Practice for Securing Recommended Practice for Securing Control System Modems January 2008 iii ABSTRACT This paper addresses an often overlooked "backdoor" into critical infrastructure control systems created by modem connections. A modem's connection to the public telephone system is similar to a corporate network connection to the Internet. By tracing typical attack paths into the system, this paper provides the reader with an analysis of the problem and then guides the reader through methods to evaluate existing modem security. Following the analysis, a series of methods for securing modems is provided. These methods are correlated to well-known networking security methods. iv ACKNOWLEDGEMENT This document was developed for the U.S. Department of Homeland

322

Control: A perspective  

Science Journals Connector (OSTI)

Abstract Feedback is an ancient idea, but feedback control is a young field. Nature long ago discovered feedback since it is essential for homeostasis and life. It was the key for harnessing power in the industrial revolution and is today found everywhere around us. Its development as a field involved contributions from engineers, mathematicians, economists and physicists. It is the first systems discipline; it represented a paradigm shift because it cut across the traditional engineering disciplines of aeronautical, chemical, civil, electrical and mechanical engineering, as well as economics and operations research. The scope of control makes it the quintessential multidisciplinary field. Its complex story of evolution is fascinating, and a perspective on its growth is presented in this paper. The interplay of industry, applications, technology, theory and research is discussed.

Karl J. A?strm; P.R. Kumar

2014-01-01T23:59:59.000Z

323

Radiological Control Technician Training  

Broader source: Energy.gov (indexed) [DOE]

Documentation ............................................................................2.01-1 Documentation ............................................................................2.01-1 Module 2.02 Communication Systems ..................................................................................2.02-1 Module 2.03 Counting Errors and Statistics ..........................................................................2.03-1 Module 2.04 Dosimetry .........................................................................................................2.04-1 Module 2.05 Contamination Control .....................................................................................2.05-1 Module 2.06 Airborne Sampling Program/Methods .............................................................2.06-1 Module 2.07 Respiratory Protection ......................................................................................2.07-1

324

Radiological Control Technician Training  

Broader source: Energy.gov (indexed) [DOE]

Radiological Control Technician Training Facility Practical Training Attachment Phase IV Coordinated and Conducted for the Office of Health, Safety and Security U.S. Department of Energy DOE-HDBK-1122-2009 ii This page intentionally left blank DOE-HDBK-1122-2009 iii Table of Contents Page Introduction................................................................................................................................1 Facility Job Performance Measures ........................................................................................2 Final Verification Signatures ....................................................................................................3 DOE-HDBK-1122-2009 iv

325

Radiological Control Technician Training  

Broader source: Energy.gov (indexed) [DOE]

Documentation Documentation ............................................................................2.01-1 Module 2.02 Communication Systems ..................................................................................2.02-1 Module 2.03 Counting Errors and Statistics ..........................................................................2.03-1 Module 2.04 Dosimetry .........................................................................................................2.04-1 Module 2.05 Contamination Control .....................................................................................2.05-1 Module 2.06 Airborne Sampling Program/Methods .............................................................2.06-1 Module 2.07 Respiratory Protection ......................................................................................2.07-1

326

Stirling engine power control  

DOE Patents [OSTI]

A power control method and apparatus for a Stirling engine including a valved duct connected to the junction of the regenerator and the cooler and running to a bypass chamber connected between the heater and the cylinder. An oscillating zone of demarcation between the hot and cold portions of the working gas is established in the bypass chamber, and the engine pistons and cylinders can run cold.

Fraser, James P. (Scotia, NY)

1983-01-01T23:59:59.000Z

327

Controlling Feral Pigeons  

E-Print Network [OSTI]

. Although some- what messy to apply, these repellents will remain effective for several months after application. They can be obtained at many feed stores or garden sup- ply centers. Frightening Devices Noise making devices such as fireworks, blank guns... also have limited use. Ultrasonic sound devices are manufactured for pigeon control, although their effectiveness is questionable. Sometimes spraying roosting pigeons with streams of water will cause the birds to relocate; however, it must be done...

Texas Wildlife Services

2008-04-15T23:59:59.000Z

328

Coherence Controlled Soliton Interactions  

Science Journals Connector (OSTI)

We demonstrate theoretically and subsequently observe in experiment a novel type of soliton interaction when a pair of closely spaced spatial optical solitons as a whole is made partially incoherent. We explain how the character of the soliton interaction can be controlled by the total partial incoherence, and show a possibility to change the soliton interaction from attractive to repulsive, or vice versa, near a certain threshold in the coherence parameter.

Ting-Sen Ku; Ming-Feng Shih; Andrey A. Sukhorukov; Yuri S. Kivshar

2005-02-18T23:59:59.000Z

329

Controlled CO preferential oxidation  

DOE Patents [OSTI]

Method is described for controlling the supply of air to a PROX (PReferential OXidation for CO cleanup) reactor for the preferential oxidation in the presence of hydrogen wherein the concentration of the hydrogen entering and exiting the PROX reactor is monitored, the difference there between correlated to the amount of air needed to minimize such difference, and based thereon the air supply to the PROX reactor adjusted to provide such amount and minimize such difference. 2 figs.

Meltser, M.A.; Hoch, M.M.

1997-06-10T23:59:59.000Z

330

Radiological Control Technician Training  

Broader source: Energy.gov (indexed) [DOE]

7of 9 7of 9 Radiological Control Technician Training Practical Training Phase II Coordinated and Conducted for the Office of Health, Safety and Security U.S. Department of Energy DOE-HDBK-1122-2009 ii Table of Contents Page Introduction.............................................................................. ......1 Development of Job Performance Measures (JPMs)............................ .....1 Conduct Job Performance Evaluation...................................................3 Qualification Area: Radiological Instrumentation.......................................5 Task 2-1.................. ..................................................................... 5 Objective.............................................................................. 5

331

Pitch control capacitance coupling  

SciTech Connect (OSTI)

A variable pitch propeller system is described having a stationary side and a rotating side, the rotating side including a plurality of variable pitch propeller blades, as characterized by: first means mounted upon the stationary side for sending control signals to set blade pitch and for receiving position signals relative to the blade pitch; second means mounted upon the rotating side for receiving the control signals and for sending the position signals; and a communications link for carrying the signals between the first and second means, the link having; a high side capacitor having a first plate mounted to the stationary side and electrically attaching to the first means; a low side capacitor having a first plate mounted to the stationary side and attaching electrically to the first means and a second plate mounted to the rotating side and electrically attaching to the second means such that the low side capacitor provides a differential, low potential return path for the control signals from the second means to the first means and the position signals from the first means to the second means.

Wyrostek, A.J.; Mayo, M.G.

1988-07-12T23:59:59.000Z

332

Method of turbocharger control  

SciTech Connect (OSTI)

This patent describes a method of turbocharger control in a vehicle having an engine and a turbocharger for increasing the density of at least the air entering a cylinder of the engine. The turbocharger has at least a compressor and a turbine coupled by a shaft and a nozzle to increase the angular momentum of the flow of gas to the turbine. The nozzle has a housing and movable vanes to vary the angle and velocity that the exhaust gas hits the wheel of the turbine, and actuator for moving the vanes, a can separated by a diaphragm and having an A side and B side for actuating the actuator, solenoid-actuated valves for controlling the pressure in the A and B sides of the can, an electronic control unit (ECU) having memory for storing data and predetermined values and for actuating and de-actuating the solenoid-actuated valves, a plurality of inputs to the ECU for providing input data indicative of engine temperature, engine speed, vehicle speed, intake manifold pressure, throttle angle, engine knock and charge air temperature.

Lyon, K.M.

1990-10-09T23:59:59.000Z

333

Crawling the Control System  

SciTech Connect (OSTI)

Information about accelerator operations and the control system resides in various formats in a variety of places on the lab network. There are operating procedures, technical notes, engineering drawings, and other formal controlled documents. There are programmer references and API documentation generated by tools such as doxygen and javadoc. There are the thousands of electronic records generated by and stored in databases and applications such as electronic logbooks, training materials, wikis, and bulletin boards and the contents of text-based configuration files and log files that can also be valuable sources of information. The obvious way to aggregate all these sources is to index them with a search engine that users can then query from a web browser. Toward this end, the Google "mini" search appliance was selected and implemented because of its low cost and its simple web-based configuration and management. In addition to crawling and indexing electronic documents, the appliance provides an API that has been used to supplement search results with live control system data such as current values of EPICS process variables and graphs of recent data from the archiver.

Theodore Larrieu

2009-10-01T23:59:59.000Z

334

Lighting Group: Controls and Communications  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Communications Communications Controls and Communications The Controls and Communications research activity investigates how digital technologies, such as Bluetooth, can be applied to building lighting control systems to increase building efficiency and improve occupant comfort and productivity. Projects range from embedded device networks applied to building lighting systems, to WiFi and environmental sensing and monitoring. light switch Current Projects IBECS (Integrated Building Environmental Communications System) Wireless Lighting Controls (with DUST Networks) HPCBS Advanced Digital Controls Building Control Systems Integration Completed Projects CEC Public Interest Energy Research (PIER) Projects 450 Golden Gate Project New Publications Standardizing Communication Between Lighting Devices: A Role for

335

Johnson Controls ESCO Qualification Sheet  

Broader source: Energy.gov (indexed) [DOE]

Johnson Controls ESCO Qualification Sheet DOE Super ESPC Introduction to Johnson Controls Johnson Controls has been a worldwide leader in building controls and efficiency for over 120 years (since 1885). Johnson Controls has developed, designed, installed, financed, measured, verified, operated, maintained, and guaranteed the savings for more than 2,500 projects for our diverse customer base worldwide. Under current Federal ESPC contracts, we have Johnson Controls manages developed and implemented more than 75 projects for various a performance contracting agencies, including the Army, DOE, Air Force, Navy, General Services portfolio in the U.S. of over Administration, Department of Veterans Affairs, Justice Department, $4.3 billion

336

Application of programmable logic controllers to substation control and protection  

SciTech Connect (OSTI)

This paper describes the application of programmable logic controllers (PLCs) to control and protection of bulk power and regional supply substations. PLC requirements are discussed and the concept of zones of control is explained as applied to standard PP L substation arrangements. The use of a peer-to-peer communication network between logic controllers and other substation equipment is also discussed. Details of an installation completed in spring, 1992, are presented, including experience acquired from power system faults.

Gilbert, J.G.; Diehl, G.R. (Pennsylvania Power Light Co., Allentown, PA (United States))

1994-01-01T23:59:59.000Z

337

Control of household refrigerators. Part 1: Modeling temperature control performance  

SciTech Connect (OSTI)

Commercial household refrigerators use simple, cost-effective, temperature controllers to obtain acceptable control. A manually adjusted airflow damper regulates the freezer compartment temperature while a thermostat controls operation of the compressor and evaporator fan to regulate refrigerator compartment temperature. Dual compartment temperature control can be achieved with automatic airflow dampers that function independently of the compressor and evaporator fan thermostat, resulting in improved temperature control quality and energy consumption. Under dual control, freezer temperature is controlled by the thermostat while the damper controls refrigerator temperature by regulating airflow circulation. A simulation model is presented that analyzes a household refrigerator configured with a conventional thermostat and both manual and automatic dampers. The model provides a new paradigm for investigating refrigerator systems and temperature control performance relative to the extensive verification testing that is typically done by manufacturers. The effects of each type of control and damper configuration are compared with respect to energy usage, control quality, and ambient temperature shift criteria. The results indicate that the appropriate control configuration can have significant effects and can improve plant performance.

Graviss, K.J.; Collins, R.L.

1999-07-01T23:59:59.000Z

338

Management Control Cover  

Broader source: Energy.gov (indexed) [DOE]

Assess- Assess- ing Natural Resource Damage at Rocky Flats OAS-M-06-02 November 2005 REPORT ON MANAGEMENT CONTROLS OVER ASSESSING NATURAL RESUORCE DAMAGE AT ROCKY FLATS TABLE OF CONTENTS Natural Resource Damage Assessment at Rocky Flats Details of Finding 1 Recommendation and Comments 3 Appendices Objective, Scope, and Methodology 5 Prior Audit Reports 6 Management Comments 7 NATURAL RESURCE DAMAGE ASSESSMENT AT ROCKY FLATS Page 1 Details of Finding Natural Resource The Rocky Flats Project Office (Project Office) had not initiated, Damage Assessment and had no plans, at the time of our review, for conducting a Natural Resource Damage Assessment (NRDA) at the Rocky Flats

339

Controlling DNA Methylation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Controlling DNA Methylation Though life on earth is composed of a diverse range of organisms, some with many different types of tissues and cells, all these are encoded by a molecule we call DNA. The information required to build a protein is stored in DNA within the cells. Not all the message in the DNA is used in each cell and not all the message is used all the time. During cell differentiation, the cells become dedicated for their specific function which involves selectively activating some genes and repressing others. Gene regulation is an important event in the developmental biology and the biology of various diseases, but a more complex process. Controlling DNA Methylation Though life on earth is composed of a diverse range of organisms, some with many different types of tissues and cells, all these are encoded by a molecule we call DNA. The information required to build a protein is stored in DNA within the cells. Not all the message in the DNA is used in each cell and not all the message is used all the time. During cell differentiation, the cells become dedicated for their specific function which involves selectively activating some genes and repressing others. Gene regulation is an important event in the developmental biology and the biology of various diseases, but a more complex process. In the bacteria there are distinct enzymes while one is capable of cleaving DNA, the other protects DNA by modification. The complementary function provided by the set of enzymes offers a defense mechanism against the phage infection and DNA invasion. The incoming DNA is cleaved sequence specifically by the class of enzymes called restriction endonuclease (REase). The host DNA is protected by the sequence specific action of matching set of enzymes called the DNA methyltransferase (MTase). The control of the relative activities of the REase and MTase is critical because a reduced ratio of MTase/REase activity would lead to cell death via autorestriction. However too high a ratio would fail to provide protection against invading viral DNA. In addition a separate group of proteins capable of controlling R-M proteins have been identified in various restriction-modification (R-M) systems which are called C proteins (Roberts et al., 2003).

340

Controlled spontaneous emission  

E-Print Network [OSTI]

The problem of spontaneous emission is studied by a direct computer simulation of the dynamics of a combined system: atom + radiation field. The parameters of the discrete finite model, including up to 20k field oscillators, have been optimized by a comparison with the exact solution for the case when the oscillators have equidistant frequencies and equal coupling constants. Simulation of the effect of multi-pulse sequence of phase kicks and emission by a pair of atoms shows that both the frequency and the linewidth of the emitted spectrum could be controlled.

Jae-Seung Lee; Mary A. Rohrdanz; A. K. Khitrin

2007-07-03T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Thermionic converter temperature controller  

SciTech Connect (OSTI)

A method and apparatus for controlling the temperature of a thermionic reactor over a wide range of operating power, including a thermionic reactor having a plurality of integral cesium reservoirs, a honeycomb material disposed about the reactor which has a plurality of separated cavities, a solid sheath disposed about the honeycomb material and having an opening therein communicating with the honeycomb material and cavities thereof, and a shell disposed about the sheath for creating a coolant annulus therewith so that the coolant in the annulus may fill the cavities and permit nucleate boiling during the operation of the reactor.

Shaner, Benjamin J. (McMurray, PA); Wolf, Joseph H. (Pittsburgh, PA); Johnson, Robert G. R. (Trafford, PA)

2001-04-24T23:59:59.000Z

342

Thermionic Converter Temperature Controller  

SciTech Connect (OSTI)

A method and apparatus for controlling the temperature of a thermionic reactor over a wide range of operating power, including a thermionic reactor having a plurality of integral cesium reservoirs, a honeycomb material disposed about the reactor which has a plurality of separated cavities, a solid sheath disposed about the honeycomb material and having an opening therein communicating with the honeycomb material and cavities thereof, and a shell disposed about the sheath for creating a coolant annulus therewith so that the coolant in the annulus may fill the cavities and permit nucleate boiling during the operation of the reactor.

Shaner,B. J.; Wolf, Joseph H.; Johnson, Robert G. R.

1999-08-23T23:59:59.000Z

343

Radiological Control Technician Training  

Broader source: Energy.gov (indexed) [DOE]

Change Notice No. 1 2009 Change Notice No. 2 2011 DOE HANDBOOK RADIOLOGICAL CONTROL TECHNICIAN TRAINING U.S. Department of Energy AREA TRNG Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Not Measurement Sensitive DOE-HDBK-1122-2009 This document is available on the Department of Energy Technical Standards Program Web Site at http://www.hss.energy.gov/nuclearsafety/techstds/ Change 1 DOE-HDBK-1122-2009 Original Change Part 3 1.05-1 NCRP Report No. 93 "Ionizing Radiation Exposure of the Population of the United States". NCRP Report No. 160 "Ionizing Radiation Exposure of the Population

344

Ferrite permanent magnet electrical machine and the application thereof within vehicle traction drives  

SciTech Connect (OSTI)

This patent describes, in combination, a land vehicle having axially aligned ground engaging tractive wheels, and a drivetrain carried by the vehicle for the propulsion thereof. The drivetrain comprises: (a) a substantially fixed DC power source including at least one chemical battery, (b) transmission means including selectable multiple gear ratios, an input shaft and a mechanical differential operative to transfer torque to the wheels, (c) a single-phase self-synchronous permanent magnet motor including, (i) an elongated central shaft, (ii) a generally u-shaped frame assembly adapted for mechanical grounding the shaft to a relatively stationary portion of the vehicle, the shaft being secured to the frame proximate each end thereof, (iii) a stator assembly secured to the shaft and characterized by a plurality of outwardly directed integrally formed salient poles and associated bifilar-wound induction coils, and (iv) a rotor assembly rotatably disposed on the shaft and substantially enclosing the stator assembly, the rotor assembly comprising a cylindrical shell defining an inner surface.

Gritter, D.J.; O'Neil, W.K.; Turner, D.

1987-03-17T23:59:59.000Z

345

Low Latency Hybrid Hardware-in-the-Loop Simulator for Railway Traction System  

E-Print Network [OSTI]

to a virtual plant in the identical way as it is connected to the real plant, such as inverter and electric machine. The virtual plant or the HiL simulator is composed of a real time computation machine (mostly Meng Sun and Joachim Böcker Institute of Power Electronics and Drives University of Paderborn Paderborn

Paderborn, Universität

346

Vehicle Technologies Office Merit Review 2014: Permanent Magnet Development for Automotive Traction Motors  

Broader source: Energy.gov [DOE]

Presentation given by Ames Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about permanent magnet development...

347

Ways to calculate electric fields in traction electric motor insulation by equivalent charge method  

Science Journals Connector (OSTI)

A procedure permitting one to calculate the electric fields in multilayer insulation based on the equivalent charge method is presented. Consideration of the new algorithm shows its fast response and proper ac...

A. V. Kireev; A. Yu. Bakhvalov; S. Yu. Knyazev

2009-03-01T23:59:59.000Z

348

Advanced Liquid Cooling for a Traction Drive Inverter Using Jet Impingement and Microfinned Enhanced Surfaces: Preprint  

SciTech Connect (OSTI)

Jet impingement on plain and micro-finned enhanced surfaces was compared to a traditional channel flow configuration. The jets provide localized cooling to areas heated by the insulated-gate bipolar transistor and diode devices. Enhanced microfinned surfaces increase surface area and thermal performance. Using lighter materials and designing the fluid path to manage pressure losses increases overall performance while reducing weight, volume, and cost. Powering four diodes in the center power module of the inverter and computational fluid dynamics (CFD) modeling was used to characterize the baseline as well as jet-impingement-based heat exchangers. CFD modeling showed the thermal performance improvements should hold for a fully powered inverter. Increased thermal performance was observed for the jet-impingement configurations when tested at full inverter power (40 to 100 kW output power) on a dynamometer. The reliability of the jets and enhanced surfaces over time was also investigated. Experimentally, the junction-to- coolant thermal resistance was reduced by up to 12.5% for jet impingement on enhanced surfaces s compared to the baseline channel flow configuration. Base plate-to-coolant (convective) resistance was reduced by up to 37.0% for the jet-based configuration compared to the baseline, suggesting that while improvements to the cooling side reduce overall resistance, reducing the passive stack resistance may contribute to lowering overall junction-to-coolant resistance. Full inverter power testing showed reduced thermal resistance from the middle of the module baseplate to coolant of up to 16.5%. Between the improvement in thermal performance and pumping power, the coefficient of performance improved by up to 13% for the jet-based configuration.

Waye, S. K.; Narumanchi, S.; Mihalic, M.; Moreno, G.; Bennion, K.; Jeffers, J.

2014-08-01T23:59:59.000Z

349

High-Temperature High-Power Packaging Techniques for HEV Traction Applications  

SciTech Connect (OSTI)

A key issue associated with the wider adoption of hybrid-electric vehicles (HEV) and plug in hybrid-electric vehicles (PHEV) is the implementation of the power electronic systems that are required in these products [1]. To date, many consumers find the adoption of these technologies problematic based on a financial analysis of the initial cost versus the savings available from reduced fuel consumption. Therefore, one of the primary industry goals is the reduction in the price of these vehicles relative to the cost of traditional gasoline powered vehicles. Part of this cost reduction must come through optimization of the power electronics required by these vehicles. In addition, the efficiency of the systems must be optimized in order to provide the greatest range possible. For some drivers, any reduction in the range associated with a potential HEV or PHEV solution in comparison to a gasoline powered vehicle represents a significant barrier to adoption and the efficiency of the power electronics plays an important role in this range. Likewise, high efficiencies are also important since lost power further complicates the thermal management of these systems. Reliability is also an important concern since most drivers have a high level of comfort with gasoline powered vehicles and are somewhat reluctant to switch to a less proven technology. Reliability problems in the power electronics or associated components could not only cause a high warranty cost to the manufacturer, but may also taint these technologies in the consumer's eyes. A larger vehicle offering in HEVs is another important consideration from a power electronics point of view. A larger vehicle will need more horsepower, or a larger rated drive. In some ways this will be more difficult to implement from a cost and size point of view. Both the packaging of these modules and the thermal management of these systems at competitive price points create significant challenges. One way in which significant cost reduction of these systems could be achieved is through the use of a single coolant loop for both the power electronics as well as the internal combustion engine (ICE) [2]. This change would reduce the complexity of the cooling system which currently relies on two loops to a single loop [3]. However, the current nominal coolant temperature entering these inverters is 65 C [3], whereas a normal ICE coolant temperature would be much higher at approximately 100 C. This change in coolant temperature significantly increases the junction temperatures of the devices and creates a number of challenges for both device fabrication and the assembly of these devices into inverters and converters for HEV and PHEV applications. With this change in mind, significant progress has been made on the use of SiC devices for inverters that can withstand much higher junction temperatures than traditional Si based inverters [4,5,6]. However, a key problem which the single coolant loop and high temperature devices is the effective packaging of these devices and related components into a high temperature inverter. The elevated junction temperatures that exist in these modules are not compatible with reliable inverters based on existing packaging technology. This report seeks to provide a literature survey of high temperature packaging and to highlight the issues related to the implementation of high temperature power electronic modules for HEV and PHEV applications. For purposes of discussion, it will be assumed in this report that 200 C is the targeted maximum junction temperature.

Barlow, F.D.; Elshabini, A.

2006-11-30T23:59:59.000Z

350

Goodyear Tire Plant Gains Traction on Energy Savings After Completing Save Energy Now Assessment (Revised)  

SciTech Connect (OSTI)

This DOE Save Energy Now case study describes how the Goodyear Tire Plant saves approx. 93,000 MMBtu and $875,000 annually after increasing steam system energy efficiency in the Union City, TN, plant.

Not Available

2008-04-01T23:59:59.000Z

351

E-Print Network 3.0 - automotive traction applications Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

54 Spatiotemporal Constraints on the Force-Dependent Growth of Focal Jonathan Stricker, Yvonne Aratyn-Schaus, Patrick W. Oakes, and Margaret L. Gardel* Summary: adhesions...

352

Three-dimensional traction forces of Schwann cells on compliant substrates  

Science Journals Connector (OSTI)

...This provides axons with the required insulation for fast moving, saltatory conduction...of the timelapse experiments to avoid thermal drift. A 40 CFI APO Lambda S water...elasticity directs stem cell lineage specification. Cell 126, 677-689. ( doi:10...

2014-01-01T23:59:59.000Z

353

Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs  

Broader source: Energy.gov [DOE]

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

354

Investigation of the singular integral and discontinuous traction problems for boundary element three-dimensional elastostatics  

E-Print Network [OSTI]

point. Up to six sub-cells may be required to perform the integration over the complete volume. Integration over each sub-cell is performed by mapping the sub-cell onto a cube in intrinsic coordinates ( q , h , t) ). This technique of evaluating... to two and three-dimensional boundary elements, where the mapping of the pyramidal 10 sub-cell onto a cube translates to the mapping of a triangular element onto a quadrangle in instrinsic coordinates. This transformation has the effect of blowing up...

Awad, Nadim Mansour

2012-06-07T23:59:59.000Z

355

Basic Control of Parabolic Troughs  

Science Journals Connector (OSTI)

The chapter outlines the main features of the different modeling and basic control approaches used during the last 25 years to control the distributed collector systems (DCS). The DCS may be described by a dis...

Prof. Eduardo F. Camacho; Manuel Berenguel

2012-01-01T23:59:59.000Z

356

Fully Integrated Ballast Controller with  

E-Print Network [OSTI]

Global Research (through CoPEC) and the Department of Energy's National Energy Technology Laboratory. Simplified block diagram of the two primary control loops in the ballast IC: (I) inner phase control and (2

357

Computerized Control of Environmental Systems  

E-Print Network [OSTI]

This paper examines the actual implementation of two computerized environmental system maintenance control centers. Project "A" is a candy manufacturing plant where controlled systems included subfreezing storage, HVAC, and cold storage (40F to 55F...

Gatti, F. L.

1980-01-01T23:59:59.000Z

358

brain control of coughing  

E-Print Network [OSTI]

There is an overwhelming body of evidence to support the existence of higher brain circuitries involved in the sensory detection of airways irritation and the motor control of coughing. The concept that cough is purely a reflex response to airways irritation is now superseded by the recognition that perception of an urge-to-cough and altered behavioral modification of coughing are key elements of cough disorders associated with airways disease. Understanding the pathways by which airway sensory nerves ascend into the brain and the patterns of neural activation associated with airways irritation will undoubtedly provide new insights into disordered coughing. This brief review aims to explore our current understanding of higher order cough networks by summarizing data from recent neuroanatomical and functional studies in animals and humans. We provide evidence for the existence of distinct higher order network components involved in the discrimination of signals arising from the airways and the motor control of coughing. The identification of these network components provides a blueprint for future research and the development of targeted managements for cough and the urge-to-cough. John Widdicombe remembered In 2002, while holidaying in London, I (SBM) received a pleasant email invitation to join John and his wife

Stuart B Mazzone; Alice E Mcgovern; Seung-kwon Yang; Ariel Woo; Ayaka Ando; Jennifer Leech; Michael J Farrell

359

Numerical control user experience  

SciTech Connect (OSTI)

AUTOCON is an acronym for Automatic Contouring, a program which generates a contour toolpath for the external profile of printed writing boards (PWB) using ICEM DDN. AUTOCON originates from the Computer Aided Process Planning (CAPP) Procedure developed by Electrical Manufacturing at Allied Bendix. The CAPP program uses electronically transmitted graphics files received from a design agency to generate automatic panel layouts and travellers for Process Engineers. The objective of AUTOCON is to utilize the information from the CAPP program to generate Numerical Control tapes. If the CAPP program can be utilized to its full potential, it is estimated that a good portion of the 60 to 90 PWB tapes shipped each month from our Numerical Control Department could be eliminated from conventional N/C Programming. The purpose of AUTOCON is to automatically generate a toolpath around the external profile of a PWB with no user intervention. The Process Engineer can generate a profile contour N/C tape after he has completed the panel layout and traveller through CAPPS for a part. After the layout and traveller illustrations have been completed, the same geometry can then be utilized again for the N/C tape. An N/C Analysist then reviews the listing for a final checkout of the job. 13 figs.

Butler, J.

1985-10-01T23:59:59.000Z

360

Compressed Air System Control Strategies  

Broader source: Energy.gov [DOE]

This tip sheet briefly discusses compressed air system control strategies as a means to improving and maintaining system performance.

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Gun Violence and Gun Control  

E-Print Network [OSTI]

GUN VIOLENCEAND GUN CONTROL Mark Greenberg and Harry Litman This shortthe title "Rethinking Gun Violence." We welcome comments on

Greenberg, Mark; Litman, Harry

2009-01-01T23:59:59.000Z

362

Exercise Controller and Evaluator Manual  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This volume details the roles of controllers and evaluators in emergency exercises. Canceled by DOE G 151.1-3.

1997-08-21T23:59:59.000Z

363

Model Predictive Control Wind Turbines  

E-Print Network [OSTI]

Model Predictive Control of Wind Turbines Martin Klauco Kongens Lyngby 2012 IMM-MSc-2012-65 #12;Summary Wind turbines are the biggest part of the green energy industry. Increasing interest control strategies. Control strategy has a significant impact on the wind turbine operation on many levels

364

FUZZY CONTROLLERS: AN INTEGRATED APPROACH  

E-Print Network [OSTI]

1 FUZZY CONTROLLERS: AN INTEGRATED APPROACH BASED ON FUZZY LOGIC, ROUGH SETS, AND EVOLUTIONARY is used to formalized the design of classical fuzzy logic controllers. The design is formu­ lated into the design theory of fuzzy logic control (FLC). One of the important novelties of FLC design

Lin, Tsau Young

365

IBM and Johnson Controls Integrated  

E-Print Network [OSTI]

IBM and Johnson Controls Integrated Smarter Building Solution IBM and Johnson Controls make it simpler to reduce energy and operational costs while reducing greenhouse emissions. IBM and Johnson and more. IBM and Johnson Controls work with you to identify high-priority energy consumption areas

366

Experience with hydrotreater computer control  

SciTech Connect (OSTI)

Part of a series of articles on actual operating experience with computer control, this article describes the control strategies and results of a hydrotreater computer control project. A new computer-based control system was installed in Gulf Canada's lube oil plant at Clarkson, Ontario. This plant is designed to produce 10 Mbpd of high quality lubricating oils using Gulf's new lube hydrotreating process. The following sections present a process description, a description of the control objectives, the control functions designed to meet those objectives, and a summary of the performance documented to date. In June 1980, Gulf conducted a feasibility study for computer control of their lube oil process, and the results of that study indicated that control of the heart of the process, the hydrotreater reactor and fractionation section, would yield significant economic benefit. In October 1980, Gulf reviewed a detailed design based on the control functions defined in the earlier study. After the desired functions were refined to Gulf's specification, control programming began at the Houston computer staging site. The applications software was demonstrated in Houston in May 1981, and integrated into the same computer on-site at Clarkson in July 1981. The system linked to an existing microprocessorbased hardware data acquisition and control system. Control commissioning and initial tuning were finished by mid-December 1981. Final tuning and testing were done in mid-January 1982, when the project was completed successfully, within budget and ahead of schedule.

Martin, G.D.; Cassaday, K.M.; VanHorn, L.D.

1984-03-01T23:59:59.000Z

367

Control device for vehicle speed  

SciTech Connect (OSTI)

This patent describes a control device for vehicle speed comprising: a throttle driving means operatively coupled to a throttle valve of a vehicle; a set switch means for commanding memorization of the vehicle speed; a resume switch means for commanding read of the vehicle speed; a vehicle speed detecting means for generating a signal in accordance with the vehicle speed; a vehicle speed memory; an electronical control means for memorizing in the vehicle speed memory vehicle speed information corresponding to the signal obtained from the vehicle speed detecting means in response to actuation of the set switch means. The control means is also for reading out the content of the vehicle speed memory in response to actuation of the resume switch means to control the throttle driving means in accordance with the read-out content; a power supply means for supplying power to the electronical control means; and a power supply control switch means for controlling supply of power to the electronical control means in response to the state of at least one of the set switch means and the resume switch means and the state of the electronical control means. The improvement described here comprises the electronical control means sets the power supply control switch means into such a state that supply of power to the electronical control means is turned OFF, when vehicle speed information is not memorized in the vehicle speed memory.

Kawata, S.; Hyodo, H.

1987-03-03T23:59:59.000Z

368

Air Pollution Control Regulations: No.27 - Control of Nitrogen Oxide  

Broader source: Energy.gov (indexed) [DOE]

Air Pollution Control Regulations: No.27 - Control of Nitrogen Air Pollution Control Regulations: No.27 - Control of Nitrogen Oxide Emissions (Rhode Island) Air Pollution Control Regulations: No.27 - Control of Nitrogen Oxide Emissions (Rhode Island) < Back Eligibility Commercial Industrial Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Program Info State Rhode Island Program Type Environmental Regulations Provider Department of Environmental Management These regulations apply to stationary sources with the potential to emit 50 tons of nitrogen oxides (NOx) per year from all pollutant-emitting equipment or activities. The regulations describe possibilities for exemptions (i.e., for sources which have the potential to emit 50 tons but do not actually reach that level) and Reasonably Available Control

369

CRADA Final Report: Application of Dual-Mode Invertor Control to Commercially Available Radial-Gap Permanent Magnet Motors - Vol. 1  

SciTech Connect (OSTI)

John Deere and Company (Deere), their partner, UQM Technologies, Inc. (UQM), and the Oak Ridge National Laboratory's (ORNL's) Power Electronics and Electric Machinery Research Center (PEEMRC) recently completed work on the cooperative research and development agreement (CRADA) Number ORNL 04-0691 outlined in this report. CRADA 04-0691 addresses two topical issues of interest to Deere: (1) Improved characterization of hydrogen storage and heat-transfer management; and (2) Potential benefits from advanced electric motor traction-drive technologies. This report presents the findings of the collaborative examination of potential operational and cost benefits from using ORNL/PEEMRC dual-mode inverter control (DMIC) to drive permanent magnet (PM) motors in applications of interest to Deere. DMIC was initially developed and patented by ORNL to enable PM motors to be driven to speeds far above base speed where the back-electromotive force (emf) equals the source voltage where it is increasingly difficult to inject current into the motor. DMIC is a modification of conventional phase advance (CPA). DMIC's dual-speed modes are below base speed, where traditional pulse-width modulation (PWM) achieves maximum torque per ampere (amp), and above base speed, where six-step operation achieves maximum power per amp. The modification that enables DMIC adds two anti-parallel thyristors in each of the three motor phases, which consequently adds the cost of six thyristors. Two features evaluated in this collaboration with potential to justify the additional thyristor cost were a possible reduction in motor cost and savings during operation because of higher efficiency, both permitted because of lower current. The collaborative analysis showed that the reduction of motor cost and base cost of the inverter was small, while the cost of adding six thyristors was greater than anticipated. Modeling the DMIC control displayed inverter efficiency gains due to reduced current, especially under light load and higher speed. This current reduction, which is the salient feature of DMIC, may be significant when operating duty cycles have low loads at high frequencies. Reduced copper losses make operation more efficient thereby reducing operating costs. In the Deere applications selected for this study, the operating benefit was overshadowed by the motor's rotational losses. Rotational losses of Deere 1 and Deere 2 dominate the overall drive efficiency so that their reduction has the greatest potential to improve performance. A good follow-up project would be to explore cost erective ways to reduce the rotational losses buy 66%.

Lawler, J.S. (U. Tennessee-Knoxville); McKeever, J.W.; Downing, M.E.; Stahlhut, R.D (John Deere); Bremmer, R. (John Deere); Shoemaker, J.M. (John Deere); Seksarian, A.K. (john Deere); Poore, B. (John Deere); Lutz, J. (UQM)

2006-05-01T23:59:59.000Z

370

Management Control Cover  

Broader source: Energy.gov (indexed) [DOE]

BWXT's Teaming Partner BWXT's Teaming Partner Arrangement at Pantex OAS-M-06-04 February 2006 2 approval and BWXT reimbursed the parent company of Bechtel, Bechtel National, for indirect costs in excess of contract limits. This occurred because the Pantex Site Office did not: 1) ensure that BWXT complied with contractual provisions that limited post-retirement health benefits to BWXT employees, and 2) implement adequate controls to mitigate potential conflict of interest situations involving purchases from Bechtel National and affiliates. As a result, the Department was at risk of paying $3 million in post-retirement health benefits for individuals who were ineligible for the benefits. Additionally, the Department has reimbursed BWXT approximately $90,000 for questionable costs associated with indirect charges made by Bechtel National.

371

Management Control Cover  

Broader source: Energy.gov (indexed) [DOE]

the the Hanford Site Transuranic Mixed Tank Waste OAS-M-06-01 November 2005 REPORT ON MANAGEMENT CONTROLS OVER THE HANFORD SITE TRANSURANIC MIXED TANK WASTE TABLE OF CONTENTS Hanford Site Transuranic Mixed Tank Waste Details of Finding 1 Recommendations and Comments 3 Appendices Objective, Scope, and Methodology 6 Prior Audit Reports 8 Hanford Site Transuranaic Mixed Tank Waste Page 1 Details of Finding Regulation and The Office of River Protection (ORP) pursued the Transuranic Permits Mixed Tank (TRUM) Waste Project without sufficiently addressing regulatory and permitting issues. In 2003, ORP initiated efforts through its contractor, CH2M Hill Hanford Group, Inc. (CHG) to proceed with the TRUM waste project. According

372

OMB Control No.  

Broader source: Energy.gov (indexed) [DOE]

7 7 (02-94) OMB Control No. 1910-0600 U.S. Department of Energy APPLICANT DISABILITY, RACE/NATIONAL ORIGIN AND SEX IDENTIFICATION (Please read the Instructions and Privacy Act Statement before completing this form) Vacancy Announcement Number Name (Last, First, Middle Initial) Position Title, Series, Grade Social Security Number Sex Male Female OMB Burden Disclosure Statement Public reporting burden for this collection of information is estimated to average 10 minutes per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including

373

Management Control Cover  

Broader source: Energy.gov (indexed) [DOE]

Performance Fees in the Idaho Performance Fees in the Idaho National Laboratory Contract OAS-M-06-07 August 2006 REPORT ON MANAGEMENT CONTROLS OVER PERFORMANCE FEES IN THE IDAHO NATIONAL LABORATORY CONTRACT TABLE OF CONTENTS Performance Fees Details of Finding 1 Recommendations and Comments 4 Appendices 1. Objective, Scope, and Methodology 6 2. Other Matters 7 3. Related Audit Reports 8 4. Management Comments 9 PERFORMANCE FEES IN THE IDAHO NATIONAL LABORATORY CONTRACT Page 1 Details of Finding Performance Measures The Department of Energy (Department) did not always effectively and Fees use performance measures and fees to appropriately reward contractor performance. Specifically, the Department allocated approximately $1.1 million for 3 of the 27 performance measures

374

OMB Control No.  

Broader source: Energy.gov (indexed) [DOE]

300.3 300.3 (09-93) (All other editions are obsolete) OMB Control No. 1910-0500 OMB Burden Disclosure Statement on Page 4 U.S. Department of Energy Semi-Annual Summary Report of DOE-Owned Plant and Capital Equipment (P&CE) Contractor Name Address Location of Property (City, State) Contracting Office Contract No. Asset Type Code Beginning Balance As of No. of Items $ Acquisitions No. of Items $ Dispositions No. of Items $ Ending Balance As of No. of Items $ Total Plant and Capital Equipment 1 2 3 4 5 6 7 8 9 Prepared By name (printed), title, telephone number, signature Date of Last Physical Inventory of Capital Equipment Contracting Officer Representative Signature

375

OMB Control No.  

Broader source: Energy.gov (indexed) [DOE]

3A 3A (03-94) OMB Control No. 1910-0400 Public reporting burden for this collection of information is estimated to average 10 minutes per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Office of Information Resources Management Policy, Plans, and Oversight, Records Management Division, HR-422 - GTN, Paperwork Reduction Project (1910-0400), U.S. Department of Energy, 1000 Independence Avenue, S.W., Washington, DC 20585; and to the Office of Management and Budget (OMB), Paperwork

376

Fuel vapor control device  

SciTech Connect (OSTI)

A fuel vapor control device is described having a valve opening and closing a passage connecting a carburetor and a charcoal canister according to a predetermined temperature. A first coil spring formed by a ''shape memory effect'' alloy is provided to urge the valve to open the passage when the temperature is high. A second coil spring urges the valve to close the passage. A solenoid is provided to urge an armature against the valve to close the passage against the force of the first coil spring when the engine is running. The solenoid heats the first coil spring to generate a spring force therein when the engine is running. When the engine is turned off, the solenoid is deactivated, and the force of the first spring overcomes the force of the second spring to open the passage until such time as the temperature of the first spring drops below the predetermined temperature.

Ota, I.; Nishimura, Y.; Nishio, S.; Yogo, K.

1987-10-20T23:59:59.000Z

377

Electronically controlled cable wrapper  

DOE Patents [OSTI]

A spindle assembly engages and moves along a length of cable to be wrapped with insulating tape. Reels of insulating tape are mounted on a outer rotatable spindle which revolves around the cable to dispense insulating tape. The rate of movement of the spindle assembly along the length of the cable is controlled by a stepper motor which is programmably synchronized to the rate at which rotatable spindle wraps the cable. The stepper motor drives a roller which engages the cable and moves the spindle assembly along the length of the cable as it is being wrapped. The spindle assembly is mounted at the end of an articulated arm which allows free movement of the spindle assembly and allows the spindle assembly to follow lateral movement of the cable.

Young, T.M.

1982-08-17T23:59:59.000Z

378

Fuel control governor  

SciTech Connect (OSTI)

A governor for a power plant is described, the governor comprising: a valve connected in control relation to the power plant, the valve having a first member, and a second member with respect to which the first member rotates, driven means including a ball head supporting plural fly weights and responsive to the speed of the power plant for urging the fly weights radially outwardly by centrifugal force, the operation of the valve being governed by the radial position of the fly weights, and fluid coupling means providing a slip connection between the driven means and the first member so that the first member rotates at a speed less than that of the ball head.

Queitzsch, G.K. Jr.

1993-08-10T23:59:59.000Z

379

Grasshoppers and Their Control  

E-Print Network [OSTI]

. Conventional insecticides labeled (L) for grasshopper control in field crops.* Trade names Alfalfa Corn a Cotton Peanuts Small grains b Sorghum Soybeans Sunflowers Vegetables c Asana XL L L L L L L L Baythroid 2 L L L L L Capture 2 EC L L Dimethoate d LL L LL L... Di-Syston 15 G L L Furadan 4F L L L L Fury L L L L L L Guthion 2 L L Guthion Solupak 50 WP L Imidan 70 W L L L Karate (Zeon Tech) L L L Leverage 2.7 L Lorsban 4E-SG L Lorsban 75 WG L L L L L L Lorsban 4 E L L L L Malathion ULV e LLL f LL Malthion 8...

Patrick, Carl D.

2004-06-16T23:59:59.000Z

380

Radiological Control Technician Training  

Broader source: Energy.gov (indexed) [DOE]

_______ _______ Change Notice 1 June 2009 DOE HANDBOOK RADIOLOGICAL CONTROL TECHNICIAN TRAINING U.S. Department of Energy AREA TRNG Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Not Measurement Sensitive DOE-HDBK-1122-2009 This document is available on the Department of Energy Technical Standards Program Web Site at http://www.hss.energy.gov/nuclearsafety/techstds/ Change 1 DOE-HDBK-1122-2009 Original Change Part 3 1.05-1 NCRP Report No. 93 "Ionizing Radiation Exposure of the Population of the United States". NCRP Report No. 160 "Ionizing Radiation Exposure of the Population of the United States". Part 3 1.05-9 4) U.S. national average from diagnostic

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Digital control of HVDC converters  

SciTech Connect (OSTI)

This paper presents the project of a completely digital HVDC converter controller based on a 16-bit microcomputer. It was decided to achieve as much as possible by software in order to minimize functions performed by external hardware. The presented design comprises software programmed functions such as a PID current control amplifier, voltage dependent current order limiters and an alpha-minimum symmetrization unit, among others. HVDC control principles are briefly reviewed and a detailed description of both the hardware and software structure of the controller is presented. The digital controller was implemented in an HVDC simulator and several dynamic performance tests demonstrated the efficiency of the proposed methodology.

Pilotto, L.A.S.; Roitman, M.; Alves, J.E.R.

1989-05-01T23:59:59.000Z

382

Environmental control system  

SciTech Connect (OSTI)

An environmental control system for controlling the environmental conditions in a swimming pool hall 1 comprises a heat pump having a multi-section evaporator 8, compressors 23a and 23b and a multi-section condensor 18. In the day-time, the dry bulb temperature in the pool hall is maintained by circulating space air through a duct 3 to the evaporator 8 where the latent heat is recovered from the moisture laden air. This heat is rejected via the condensor 18 either to the now drier recirculated air or fresh air from an inlet 13 or a mixture of air from the two sources. In a night mode of operation, circulation of space air through the duct 3 is prevented and instead it is recirculated via a direct recirculation duct 53 and is heated by the condensor 18, the heat used to do this being recovered from outside air inducted into the evaporator 8 via an inlet 50. In order to prevent frosting of the evaporator when the outside air temperature is too low, a damper 52 may be opened to allow some space air to pass through the evaporator 8 and raise its temperature. In order to increase the heat recovery capability of the compressor, storage tank 56 is used to collect waste water from showers etc. and also from backwash through the pool water filter and when this tank is full, its water is chilled by means of a water chiller 15 in parallel with the evaporator and the heat so recovered is rejected to the re-circulating space air by means of the condensor 18.

Foley, P. N.; Turbard, A. M.

1985-05-21T23:59:59.000Z

383

NREL: Wind Research - Controls Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Controls Analysis Controls Analysis Photo of a man working inside the hub of a large 3-blades turbine. Working in the hub of Controls Advanced Research Turbine (CART) at the National Wind Technology Center (NWTC) Man in wind turbine hub viewed from inside a wind turbine's blade. At the National Wind Technology Center (NWTC), we design, implement, and test advanced wind turbine controls to maximize energy extraction and reduce structural dynamic loads. These control designs are based on linear models of the turbine that are simulated using specialized modeling software. The resulting advanced controls algorithms are field tested on the NWTC's Controls Advanced Research Turbines (CARTs). NWTC researchers are also studying blade pitch and generator torque, and employing advanced sensors to optimize power capture and reduce wind

384

Development Practice in HVAC Controls  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Development Practice in HVAC Controls Development Practice in HVAC Controls Speaker(s): John Zhou Date: April 11, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Philip Haves The presentation will introduce development tools and design considerations used in HVAC controls development. Controls development use simulation, lab testing and field trial at different phases of the project cycle to improve control performance and to achieve rapid development. Development starts with simulation to originate and define algorithm concept. The concept is then implemented in a prototype controller, and tested in lab environment. The concept is refined and verified by analyzing lab results. In the final phase of development, controllers with refined and verified algorithms are installed in field trial sites to ensure system integration and to confirm

385

Networked Control and Autonomy Karl Henrik Johansson  

E-Print Network [OSTI]

? · State-based scheduling for control · Exploi;ng wireless protocols for control? · State-based scheduling for control · Exploi;ng wireless protocols for control;on between scheduling-es;ma;on-control? Stochas;c control formula;on #12;7/3/13 8 Control

Johansson, Karl Henrik

386

Subsurface Contamination Control  

SciTech Connect (OSTI)

There are two objectives of this report, ''Subsurface Contamination Control''. The first is to provide a technical basis for recommending limiting radioactive contamination levels (LRCL) on the external surfaces of waste packages (WP) for acceptance into the subsurface repository. The second is to provide an evaluation of the magnitude of potential releases from a defective WP and the detectability of the released contents. The technical basis for deriving LRCL has been established in ''Retrieval Equipment and Strategy for Wp on Pallet'' (CRWMS M and O 2000g, 6.3.1). This report updates the derivation by incorporating the latest design information of the subsurface repository for site recommendation. The derived LRCL on the external surface of WPs, therefore, supercede that described in CRWMS M and O 2000g. The derived LRCL represent the average concentrations of contamination on the external surfaces of each WP that must not be exceeded before the WP is to be transported to the subsurface facility for emplacement. The evaluation of potential releases is necessary to control the potential contamination of the subsurface repository and to detect prematurely failed WPs. The detection of failed WPs is required in order to provide reasonable assurance that the integrity of each WP is intact prior to MGR closure. An emplaced WP may become breached due to manufacturing defects or improper weld combined with failure to detect the defect, by corrosion, or by mechanical penetration due to accidents or rockfall conditions. The breached WP may release its gaseous and volatile radionuclide content to the subsurface environment and result in contaminating the subsurface facility. The scope of this analysis is limited to radioactive contaminants resulting from breached WPs during the preclosure period of the subsurface repository. This report: (1) documents a method for deriving LRCL on the external surfaces of WP for acceptance into the subsurface repository; (2) provides a table of derived LRCL for nuclides of radiological importance; (3) Provides an as low as is reasonably achievable (ALARA) evaluation of the derived LRCL by comparing potential onsite and offsite doses to documented ALARA requirements; (4) Provides a method for estimating potential releases from a defective WP; (5) Provides an evaluation of potential radioactive releases from a defective WP that may become airborne and result in contamination of the subsurface facility; and (6) Provides a preliminary analysis of the detectability of a potential WP leak to support the design of an airborne release monitoring system.

Y. Yuan

2001-11-16T23:59:59.000Z

387

A fuzzy logic controller for autonomous vehicle control.  

E-Print Network [OSTI]

??This thesis presents a feasibility study for the use of fuzzy logic control to solve the autonomous vehicle following problem. After developing the original vehicle (more)

Vinson, Yale Patrick

2012-01-01T23:59:59.000Z

388

EXPERIMENTAL TEST FACILITY FOR EVALUATION OF CONTROLS AND CONTROL STRATEGIES  

E-Print Network [OSTI]

Pseudo collector vs Return boiler V2 Direct heating Supplysensors Flow switches Boiler enable I DORIC 220 data loggercollector, consists of a boiler with a controlled mixing

Warren, Mashuri L.

2013-01-01T23:59:59.000Z

389

Integrating preconcentrator heat controller  

DOE Patents [OSTI]

A method and apparatus for controlling the electric resistance heating of a metallic chemical preconcentrator screen, for example, used in portable trace explosives detectors. The length of the heating time-period is automatically adjusted to compensate for any changes in the voltage driving the heating current across the screen, for example, due to gradual discharge or aging of a battery. The total deposited energy in the screen is proportional to the integral over time of the square of the voltage drop across the screen. Since the net temperature rise, .DELTA.T.sub.s, of the screen, from beginning to end of the heating pulse, is proportional to the total amount of heat energy deposited in the screen during the heating pulse, then this integral can be calculated in real-time and used to terminate the heating current when a pre-set target value has been reached; thereby providing a consistent and reliable screen temperature rise, .DELTA.T.sub.s, from pulse-to-pulse.

Bouchier, Francis A. (Albuquerque, NM); Arakaki, Lester H. (Edgewood, NM); Varley, Eric S. (Albuquerque, NM)

2007-10-16T23:59:59.000Z

390

Closing the Gap in Control System Implementations  

E-Print Network [OSTI]

of off-line scheduling and optimal control. In Proceedingsframework for scheduling control tasks from multiple controlthe problem of scheduling control tasks from multiple

Saha, Indranil

2013-01-01T23:59:59.000Z

391

LIGHTING CONTROLS: SURVEY OF MARKET POTENTIAL  

E-Print Network [OSTI]

1986 employed the scheduling control strategy, the energymonetary savings. Scheduling A control system can provideVarious control strategies are described: scheduling, tun-

Verderber, R.R.

2010-01-01T23:59:59.000Z

392

Tour Andover Control TAC | Open Energy Information  

Open Energy Info (EERE)

Tour Andover Control TAC Jump to: navigation, search Name: Tour Andover Control (TAC) Place: Texas Zip: 75600 Sector: Services Product: Tour Andover Controls provides added value...

393

Building Blocks for Tobacco Control: A Handbook  

E-Print Network [OSTI]

BLOCKS FOR TOBACCO CONTROL: A HANDBOOK BUILDING BLOCKS FORTOBACCO CONTROL: A HANDBOOK BUILDING BLOCKS FORTOBACCO CONTROL: A HANDBOOK BUILDING BLOCKS FOR TOBACCO

World Health Organization

2004-01-01T23:59:59.000Z

394

Occupant Response to Window Control Signaling Systems  

E-Print Network [OSTI]

1 Concurrent air supply, outdoor temperature control 1. 654air supply, outdoor temperature control 8. Lincoln Hall,Concurrentairsupply;outdoortemperaturecontrol. In

Ackerly, Katherine

2012-01-01T23:59:59.000Z

395

Document Control Template-Process  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1_ADocument Control Template - Process.doc Page 1 of 7 1_ADocument Control Template - Process.doc Page 1 of 7 EOTA - Business Process Document Title: Document Control Template - Process Document Number: F-001 Rev. A Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: P-001, Document Control Process Notify of Changes: EOTA Employees Referenced Document(s): N/A F-001_ADocument Control Template - Process.doc Page 2 of 7 Revision History: Rev. Description of Change A Initial Release B C D E F-001_ADocument Control Template - Process.doc Page 3 of 7 EOTA - Business Process Document Title: DocTitle Document Number: P-DocID# Rev Document Owner: Elizabeth Sousa Backup Owner: David McKay Approver(s): Dennis Murphy Parent Document:

396

Diamond turning machine controller implementation  

SciTech Connect (OSTI)

The standard controller for a Pnuemo ASG 2500 Diamond Turning Machine, an Allen Bradley 8200, has been replaced with a custom high-performance design. This controller consists of four major components. Axis position feedback information is provided by a Zygo Axiom 2/20 laser interferometer with 0.1 micro-inch resolution. Hardware interface logic couples the computers digital and analog I/O channels to the diamond turning machine`s analog motor controllers, the laser interferometer, and other machine status and control information. It also provides front panel switches for operator override of the computer controller and implement the emergency stop sequence. The remaining two components, the control computer hardware and software, are discussed in detail below.

Garrard, K.P.; Taylor, L.W.; Knight, B.F.; Fornaro, R.J.

1988-12-01T23:59:59.000Z

397

Integrated control system and method  

DOE Patents [OSTI]

An integrated control system for use with an engine connected to a generator providing electrical power to a switchgear is disclosed. The engine receives gas produced by a gasifier. The control system includes an electronic controller associated with the gasifier, engine, generator, and switchgear. A gas flow sensor monitors a gas flow from the gasifier to the engine through an engine gas control valve and provides a gas flow signal to the electronic controller. A gas oversupply sensor monitors a gas oversupply from the gasifier and provides an oversupply signal indicative of gas not provided to the engine. A power output sensor monitors a power output of the switchgear and provide a power output signal. The electronic controller changes gas production of the gasifier and the power output rating of the switchgear based on the gas flow signal, the oversupply signal, and the power output signal.

Wang, Paul Sai Keat; Baldwin, Darryl; Kim, Myoungjin

2013-10-29T23:59:59.000Z

398

Arms control and European security  

SciTech Connect (OSTI)

In October 1987 on the eve of the Washington summit, the Committee on Atlantic Studies, a group of European and North American scholars established in 1964 to promote transatlantic dialogue, met in Toronto to discuss the implications of the new arms control for European security. This book is the fruit of that meeting. Incorporating subsequent developments, up to Grobachev's December 1988 speech to the U.N., it provides a timely assessment of arms control issues from a variety of European and North American perspectives. The contributors to this volume council caution, suggesting that while progress is possible, it will probably be slow. This volume stresses the interplay of strategic and regional arms control. It includes analyses of nuclear, conventional, and naval arms control questions and embodies a broader a broader conception of arms control. The book links arms control to such political measures as confidence-building, conflict avoidance and superpower agreement to the neutrality of particular states.

Auton, G.P.

1989-01-01T23:59:59.000Z

399

Adaptive control for energy conservation  

SciTech Connect (OSTI)

The objective of this project is to investigate the use of adaptive control concepts in buildings with solar-assisted heating, ventilating, and air-conditioning (HVAC) systems to maintain occupant comfort conditions while minimizing auxiliary energy use. Accomplishing this objective requires an energy management system capable of making sound tradeoffs. Optimal control theory is used along with a system identification technique to provide an adaptable stratgy. The resulting overall approach is known as adaptive optimal control (AOC).

Farris, D.R.

1980-03-01T23:59:59.000Z

400

Anticipatory control of turbine generators  

E-Print Network [OSTI]

of Turbine Generators. (Nay 1971) Freddie Laurel Nessec, B. S. E. E, , Texas Tech University; Directed by: Professor J. S . Denison An investigation is made of the use of predicted loads in controlling turbine generators. A perturbation model of a turbine... generator is presented along with typical parameter values. A study is made of the effects of applying control action before a load change occurs. Two predictive control schemes are investi- gated using a load cycle which incorporates both ramp and step...

Messec, Freddie Laurel

1971-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Pump control system for windmills  

DOE Patents [OSTI]

A windmill control system having lever means, for varying length of stroke of the pump piston, and a control means, responsive to the velocity of the wind to operate the lever means to vary the length of stroke and hence the effective displacement of the pump in accordance with available wind energy, with the control means having a sensing member separate from the windmill disposed in the wind and displaceable thereby in accordance with wind velocity.

Avery, Don E. (45-437 Akimala St., Honolulu, HI 96744)

1983-01-01T23:59:59.000Z

402

Thermodynamics of feedback controlled systems  

Science Journals Connector (OSTI)

We compute the entropy reduction in feedback controlled systems due to the repeated operation of the controller. This was the lacking ingredient to establish the thermodynamics of these systems, and in particular of Maxwells demons. We illustrate some of the consequences of our general results by deriving the maximum work that can be extracted from isothermal feedback controlled systems. As a case example, we finally study a simple system that performs an isothermal information-fueled particle pumping.

F. J. Cao and M. Feito

2009-04-10T23:59:59.000Z

403

Security Metricsfor Process Control Systems  

Broader source: Energy.gov [DOE]

This document describes the foundations of metrics, discusses application of these metrics to control system environments, introduces a metrics taxonomy, and suggests usage of metrics to achieve...

404

Attitudes toward gun control laws.  

E-Print Network [OSTI]

??Recently, empirical attention has been directed toward understanding public opinion about gun control laws. Despite this focus, three gaps are evident in extant scholarship. First, (more)

Borkowski, Elizabeth.

2012-01-01T23:59:59.000Z

405

Solar Energy Control System Design.  

E-Print Network [OSTI]

?? This thesis covers design, simulation and implementation of a solar energy control system for an on grid energy storage device. The design covers several (more)

Yang, Sun

2013-01-01T23:59:59.000Z

406

Johnson Controls ESCO Qualification Sheet  

Broader source: Energy.gov [DOE]

Document outlines the energy service company (ESCO) qualifications for Johnson Controls in relation to the U.S. Department of Energy's (DOEs) energy savings performance contracts (ESPC).

407

Instrumentation, Control and Intelligent Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for any application that requires monitoring, control, and human interaction. External peer review and advisory committees made up of academic, R&D, and customer organizations...

408

Classified Matter Protection and Control  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Provides detailed requirements to supplement DOE O 471.2, which establishes policy for the protection and control of classified and unclassified information. Does not cancel other directives.

1995-09-26T23:59:59.000Z

409

Export Control | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Security and Isotope Technology Division Export Control Team promotes the U.S. nonproliferation agenda by providing policy interpretation, technical guidance, and support to...

410

DOE standard: Radiological control  

SciTech Connect (OSTI)

The Department of Energy (DOE) has developed this Standard to assist line managers in meeting their responsibilities for implementing occupational radiological control programs. DOE has established regulatory requirements for occupational radiation protection in Title 10 of the Code of Federal Regulations, Part 835 (10 CFR 835), ``Occupational Radiation Protection``. Failure to comply with these requirements may lead to appropriate enforcement actions as authorized under the Price Anderson Act Amendments (PAAA). While this Standard does not establish requirements, it does restate, paraphrase, or cite many (but not all) of the requirements of 10 CFR 835 and related documents (e.g., occupational safety and health, hazardous materials transportation, and environmental protection standards). Because of the wide range of activities undertaken by DOE and the varying requirements affecting these activities, DOE does not believe that it would be practical or useful to identify and reproduce the entire range of health and safety requirements in this Standard and therefore has not done so. In all cases, DOE cautions the user to review any underlying regulatory and contractual requirements and the primary guidance documents in their original context to ensure that the site program is adequate to ensure continuing compliance with the applicable requirements. To assist its operating entities in achieving and maintaining compliance with the requirements of 10 CFR 835, DOE has established its primary regulatory guidance in the DOE G 441.1 series of Guides. This Standard supplements the DOE G 441.1 series of Guides and serves as a secondary source of guidance for achieving compliance with 10 CFR 835.

Not Available

1999-07-01T23:59:59.000Z

411

EXPERT CONTROL BASED ON NEURAL NETWORKS FOR CONTROLLING  

E-Print Network [OSTI]

neural units in artificial neural networks (ANN), artificial neural network was used to develop a model to control this system, Artificial neural networks and symbolic description methods are introduced. Artificial neural networks are widely applied in greenhouse environmental control to perform some type of non

412

OCTOBER 2013 IEEE CONTROL SYSTEMS MAGAZINE 23 PEOPLE IN CONTROL  

E-Print Network [OSTI]

papers and ten monographs in systems and control, unmanned systems, and financial market modeling served as an editor of SIAM Jour- nal on Control and Optimization, IEEE Transactions on Robotics Systems, and IEEE Transactions on Automation Science and Engineering, and on the program committees

Benmei, Chen

413

Intelligent fuzzy supervisory control for distillation columns  

E-Print Network [OSTI]

for dynamically adapting the models to achieve tight composition control. Simple control techniques do not exist for model adaptation in MIMO systems. This thesis will outline a fuzzy supervisory controller based on fuzzy logic and show that control performance...

Santhanam, Srinivasan

2012-06-07T23:59:59.000Z

414

Automatic Control Technology in the HVAC System  

Science Journals Connector (OSTI)

In the field of VAV air-conditioning system (Variable Air Volume, VAV) control theory and practical study, the paper analyzed the methods used by the China's VAV control procedures including Static Pressure Control, Variable Pressure Control and Total ...

Ren Tao; Gao Jingmin; Jia Wenwen

2009-01-01T23:59:59.000Z

415

Environmental Technology Verification of Mobile Sources Control...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Environmental Technology Verification of Mobile Sources Control Technologies Environmental Technology Verification of Mobile Sources Control Technologies 2005 Diesel Engine...

416

Lighting Controls/Sensors | Open Energy Information  

Open Energy Info (EERE)

Lighting ControlsSensors Incentives Retrieved from "http:en.openei.orgwindex.php?titleLightingControlsSensors&oldid267...

417

Influenza Virus: Genetics and Control  

Science Journals Connector (OSTI)

...to accompany PI:0 treatment in certain animals may...reverse os-mosis, and electrodialysis. The registra-tion...Extension, Berkeley 94720) Water Pollution Control...College and the Federal Water Pollution Control Ad-ministration...and "Biological Waste Treatment." The fee for each...

Robert W. Simpson

1969-01-24T23:59:59.000Z

418

Sensors, Controls, & Transactional Network Reports  

Broader source: Energy.gov [DOE]

Reports from the sensors, controls, and transactional network program. The transactional network is between appliances, buildings, and utilities, and can enable Smart Buildings -- buildings with technologies and control systems that can not only optimize energy performance and comfort, but also support energy-related transactions outside the building envelope.

419

Virtual Control Systems Environment (VCSE)  

SciTech Connect (OSTI)

Will Atkins, a Sandia National Laboratories computer engineer discusses cybersecurity research work for process control systems. Will explains his work on the Virtual Control Systems Environment project to develop a modeling and simulation framework of the U.S. electric grid in order to study and mitigate possible cyberattacks on infrastructure.

Atkins, Will

2012-10-08T23:59:59.000Z

420

Visual programming expedites process control  

SciTech Connect (OSTI)

Software development and maintenance costs continue to decrease as recent graphical user-interface (GUI) techniques advance. Improvement in the hardware cost-performance has also supported GUI success. In the area of modulating control for power plants, however, cost decreases have already been achieved through user-friendly forms. In the area of programmable logic controllers, there are three types of programming methods: relay ladder logic, Boolean, and high level language. Recently, the development of a programmable logic controller with the latest fashioned user interface (such as the window, icon, menu, and pointer environment on a control engineering workstation) has come on the market. Although its GUI features are quite good, it is not easy for plant engineers to use due to the various programming forms (e.g., ladder logic diagrams) which are often used. The system featured in this article has been developed and commercialized for direct digital modulating control (DDC) prior to the programmable controller. The construction and maintenance tools for the system are set up in workstations and personal computers. The tool is familiar to instrument and control designers and has more GUI uses. The key to the design of this system, however, is the use of input frames containing control block diagrams, which are constructed from several standard operational elements.

Isomura, S.; Katoh, M.

1996-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

AQUATIC PLANT CONTROL RESEARCH PROGRAM  

E-Print Network [OSTI]

MEETING, AQUATIC PLANT CONTROL RESEARCH PROGRAM 26-29 NOVEMBER 1984 GALVESTON, TEXAS June 1985 Final report 26-29 NOVEMBER 1984, 6. PERFORMING ORG. REPORT NC:'IBER GALVESTON, TEXAS 7. AU THOR(.) 8 Control Research Program was held in Galveston, Texas, on 26-29 November 1984, to review current research

US Army Corps of Engineers

422

Control of Environment in Horticulture  

Science Journals Connector (OSTI)

... M (Agriculture) of the British Association held a discussion on "Control of Environment in Horticulture", over which Prof. H. D. Kay presided. Dr. W. F. ... . W. F. Bewley opened with a paper on "The Control of Heat and Light in Glasshouses". He pointed out that although plants in glasshouses are warmer and more ...

1948-10-09T23:59:59.000Z

423

Critical Infrastructure and Internal Controls  

Science Journals Connector (OSTI)

Critical refers to infrastructure that provides an essential support for economic and social well-being, for public safety and for the functioning of key government responsibilities. According to Resolution of the National Security Strategy of the Republic ... Keywords: Risk management,Process control,Government,Standards,Security,Uncertainty,internal controls,critical infrastructure,risk,risk management

Iztok Podbregar; Mojca Ferjancic Podbregar

2012-08-01T23:59:59.000Z

424

Automatic Control Laboratory ETH, Zurich  

E-Print Network [OSTI]

Automatic Control Laboratory ETH, Z¨urich Physikstrasse 3 8092 Z¨urich, Switzerland +41 44 632 22 from the airport to Z¨urich city and goes directly past ETH. There are ticket machines outside 71 How to get to the Automatic Control Laboratory (IfA) From the Z¨urich airport: · By Taxi. Taxi

Lygeros, John

425

Virtual Control Systems Environment (VCSE)  

ScienceCinema (OSTI)

Will Atkins, a Sandia National Laboratories computer engineer discusses cybersecurity research work for process control systems. Will explains his work on the Virtual Control Systems Environment project to develop a modeling and simulation framework of the U.S. electric grid in order to study and mitigate possible cyberattacks on infrastructure.

Atkins, Will

2014-02-26T23:59:59.000Z

426

Johnson Controls | Open Energy Information  

Open Energy Info (EERE)

Controls Controls Jump to: navigation, search Logo: Johnson Controls Name Johnson Controls Address 5757 N. Green Bay Avenue Place Milwaukee, Wisconsin Zip 53201 Sector Efficiency Stock Symbol JCI Website http://www.johnsoncontrols.com Coordinates 43.1219149°, -87.9353576° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.1219149,"lon":-87.9353576,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

427

Moisture Control | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Moisture Control Moisture Control Moisture Control May 30, 2012 - 10:41am Addthis Controlling moisture can make your home more energy-efficient, less costly to heat and cool, more comfortable, and prevent mold growth. Controlling moisture can make your home more energy-efficient, less costly to heat and cool, more comfortable, and prevent mold growth. What does this mean for me? Moisture can support the growth of mold and mildew and can even rot structural members in extreme cases. Effective strategies for addressing moisture in your home will depend on your climate and how your home is constructed. How does it work? Moisture can enter a home as water vapor and as liquid water. Sealing air leaks and providing paths for liquid water to move away from the building can prevent moisture from causing health and comfort problems in your home.

428

NETL: CO2 Emissions Control  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > CO2 Emissions Control Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > CO2 Emissions Control Innovations for Existing Plants CO2 Emissions Control RD&D Roadmap Technology Update DOE/NETL Advanced CO2 Capture R&D Program: Technology Update DOE/NETL Advanced CO2 Capture R&D Program Accomplishments DOE/NETL Carbon Dioxide Capture and Storage RD&D Roadmap 2013 NETL CO2 Capture Technology Meeting Presentations DOE/NETL's Monthly Carbon Sequestration Newsletter Program Goals and Targets Pre-Combustion CO2 Control Post-Combustion CO2 Control Advanced Combustion CO2 Compression Other Systems Analysis Regulatory Drivers Reference Shelf Carbon capture involves the separation of CO2 from coal-based power plant flue gas or syngas. There are commercially available 1st-Generation CO2

429

NETL: Mercury Emissions Control Technologies - Evaluation of Control  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Evaluation of Control Strategies to Effectively Meet 70 - 90% Evaluation of Control Strategies to Effectively Meet 70 - 90% Mercury Reduction on an Eastern Bituminous Coal Cyclone Boiler with SCR The overall objective of this project is to assess the potential for significant mercury control, between 50 and 90% above baseline, by sorbent injection for the challenging technical process configuration at Public Service of New Hampshire Company Merrimack Station Unit No. 2. The primary emphasis of this project is to evaluate the performance of mercury sorbent injection, but the effect of co-benefits from SO3 mitigation on mercury control will also be explored. Also in this program the performance capabilities of mercury measurement techniques in challenging flue-gas environment will be assessed and the impact of activated carbon injection on fly ash disposal options will be investigated.

430

Catalysts for Lean Engine Emission Control - Emissions & Emission Controls  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Catalysts for Lean Engine Emission Control Catalysts for Lean Engine Emission Control Catalysts for controlling NOx from lean engines are studied in great detail at FEERC. Lean NOx Traps (LNTs) and Selective Catalytic Reduction (SCR) are two catalyst technologies of interest. Catalysts are studied from the nanoscale to full scale. On the nanoscale, catalyst powders are analyzed with chemisorptions techniques to determine the active metal surface area where catalysis occurs. Diffuse Reflectance Infrared Fourier Transform (DRIFT) spectroscopy is used to observe the chemical reactions occurring on the catalyst surface during catalyst operation. Both powder and coated catalyst samples are analyzed on bench flow reactors in controlled simulated exhaust environments to better characterize the chemical

431

Model-based Controllers for Semi-active Control  

E-Print Network [OSTI]

damper Base isolation TLCD Semi-active Control Active mass driver Active tendon Variable orifice damper/13/2012Page 11 Linearized explicit approximation Small perturbations Accuracy of the assumed rappresentation

432

A fuzzy logic controller for autonomous vehicle control  

E-Print Network [OSTI]

This thesis presents a feasibility study for the use of fuzzy logic control to solve the autonomous vehicle following problem. After developing the original vehicle following system, the applicability of fuzzy logic to the problem is demonstrated...

Vinson, Yale Patrick

2012-06-07T23:59:59.000Z

433

Pollution Control: Erosion and Sedimentation Control (Maine) | Department  

Broader source: Energy.gov (indexed) [DOE]

Erosion and Sedimentation Control (Maine) Erosion and Sedimentation Control (Maine) Pollution Control: Erosion and Sedimentation Control (Maine) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Maine Program Type Siting and Permitting Provider Department of Environmental Proection A person who conducts, or causes to be conducted, an activity that involves

434

Toolbox Safety Talk Forklift Operator Safety  

E-Print Network [OSTI]

, cart or hand truck instead of lifting and carrying items by hand can reduce the risk of employee back Forklift Inspection Checklist as needed. · Inspect operation of brakes, hydraulic controls, lights, back up

Pawlowski, Wojtek

435

MLS Group | Open Energy Information  

Open Energy Info (EERE)

Zip: 77598 Sector: Wind energy Product: Designs and makes pitch control systems for wind turbines and wind turbine brakes in US and UK under license from Antec SA. References: MLS...

436

Maintenance Sheet for 2013 Chevrolet Volt  

Broader source: Energy.gov (indexed) [DOE]

0DU103929 Date Mileage Description Cost 342013 4,876 Replaced relay assembly, engine control module, and 12V battery - under warranty NC 342013 4,876 Reflashed parking brake...

437

Vibration Isolation of a Locomotive Mounted Energy Storage Flywheel  

E-Print Network [OSTI]

Utilizing flywheels to store and reuse energy from regenerative braking on locomotives is a new technology being developed in the Vibration Control and Electromechanics Lab at Texas A&M. This thesis focuses on the motion analysis of a locomotive...

Zhang, Xiaohua

2011-02-22T23:59:59.000Z

438

Subsea control and data acquisition  

SciTech Connect (OSTI)

This book contains papers presented at the conference on subsea control and data acquisition. The tasks performed by subsea control systems, although fairly straightforward, are dominated by an alien environment and the high costs associated with failure and repair. The evolution of systems design has resulted in a growing confidence in equipment reliability. In the future, however, more searching demands may include active regulation of valves and the use of data for reservoir management purposes. The emphasis of the papers is on technical depth and understanding, with particular attention being paid to the science control and data monitoring in relation to the task of hydrocarbon recovery.

Not Available

1990-01-01T23:59:59.000Z

439

RTP Controls | Open Energy Information  

Open Energy Info (EERE)

RTP Controls RTP Controls Jump to: navigation, search Name RTP Controls Place Woodstock, Georgia Product Georgia-based energy management company. Coordinates 38.890218°, -78.49849° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.890218,"lon":-78.49849,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

440

NETL: CO2 Emissions Control  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Post-Combustion CO2 Control Post-Combustion CO2 Control Post-combustion CO2 control systems separate CO2 from the flue gas produced by conventional coal combustion in air. The flue gas is at atmospheric pressure and has a CO2 concentration of 10-15 volume percent. Read More! Capturing CO2 under these conditions is challenging because: (1) the low pressure and dilute concentration dictate a high total volume of gas to be treated; (2) trace impurities in the flue gas tend to reduce the effectiveness of the CO2 separation processes; and (3) compressing captured CO2 from atmospheric pressure to pipeline pressure (1,200 - 2,200 pounds per square inch) represents a large parasitic energy load. Plant Picture DOE/NETL's post-combustion CO2 control technology R&D program includes

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Dynamic control of remelting processes  

DOE Patents [OSTI]

An apparatus and method of controlling a remelting process by providing measured process variable values to a process controller; estimating process variable values using a process model of a remelting process; and outputting estimated process variable values from the process controller. Feedback and feedforward control devices receive the estimated process variable values and adjust inputs to the remelting process. Electrode weight, electrode mass, electrode gap, process current, process voltage, electrode position, electrode temperature, electrode thermal boundary layer thickness, electrode velocity, electrode acceleration, slag temperature, melting efficiency, cooling water temperature, cooling water flow rate, crucible temperature profile, slag skin temperature, and/or drip short events are employed, as are parameters representing physical constraints of electroslag remelting or vacuum arc remelting, as applicable.

Bertram, Lee A. (Dublin, CA); Williamson, Rodney L. (Albuquerque, NM); Melgaard, David K. (Albuquerque, NM); Beaman, Joseph J. (Austin, TX); Evans, David G. (Clinton, NY)

2000-01-01T23:59:59.000Z

442

The Future of Controlled Environments  

Science Journals Connector (OSTI)

We have seen how controlled environments can provide us with an appropriate place for the production of or research into sensitive materials, processes, or artifacts. As we discussed in Chapter 1, however, the...

M. Kozicki; S. Hoenig; P. Robinson

1991-01-01T23:59:59.000Z

443

Improving Inventory Control Using Forecasting  

E-Print Network [OSTI]

This project studied and analyzed Electronic Controls, Inc.s forecasting process for three high-demand products. In addition, alternative forecasting methods were developed to compare to the current forecast method. The ...

Balandran, Juan

2005-12-16T23:59:59.000Z

444

Pollution Control Act (South Carolina)  

Broader source: Energy.gov [DOE]

This Act declares the maintenance of reasonable standards of purity of air and water to be the public policy of the state. The Act authorizes the Department of Health and Environmental Control to...

445

Louisiana Air Control Law (Louisiana)  

Broader source: Energy.gov [DOE]

This law states regulations for air quality control and states the powers and duties of the secretary of environmental quality. It provides information about permits and licenses, air quality...

446

EERE Quality Control Workshop Agenda  

Broader source: Energy.gov [DOE]

Agenda from the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy (EERE) Quality Control Workshop held December 9-10, 2013, at the National Renewable Energy Laboratory in Golden, Colorado.

447

Nuclear Material Control and Accountability  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The manual establishes a program for the control and accountability of nuclear materials within the Department of Energy. Cancels: DOE M 474.1-1B DOE M 474.1-2A

2005-08-26T23:59:59.000Z

448

Nuclear Material Control and Accountability  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The manual establishes a program for the control and accountability of nuclear materials within the Department of Energy. Chg 1, dated 8-14-06. Canceled by DOE O 474.2.

2005-08-26T23:59:59.000Z

449

Coherent control of quantum information  

E-Print Network [OSTI]

Quantum computation requires the ability to efficiently control quantum information in the presence of noise. In this thesis, NMR quantum information processors (QIPs) are used to study noise processes that compromise ...

Henry, Michael Kevin

2006-01-01T23:59:59.000Z

450

Electrical Machinery and Control Diagrams  

Science Journals Connector (OSTI)

... complexity, beginning with the simple manually controlled starting rheostat and going on to the automatic substation. To the practical engineer they will be helpful. We hope that in the second ...

1925-03-28T23:59:59.000Z

451

Adaptive control of hypersonic vehicles  

E-Print Network [OSTI]

The guidance, navigation and control of hypersonic vehicles are highly challenging tasks due to the fact that the dynamics of the airframe, propulsion system and structure are integrated and highly interactive. Such a ...

Gibson, Travis Eli

2008-01-01T23:59:59.000Z

452

Pressure compensated flow control valve  

DOE Patents [OSTI]

The invention is an air flow control valve which is capable of maintaining a constant flow at the outlet despite changes in the inlet or outlet pressure. The device consists of a shell assembly with an inlet chamber and outlet chamber separated by a separation plate. The chambers are connected by an orifice. Also located within the inlet chamber is a port controller assembly. The port controller assembly consists of a differential pressure plate and port cap affixed thereon. The cap is able to slide in and out of the orifice separating the inlet and outlet chambers. When the pressure differential is sufficient, the differential pressure plate rises or falls to maintain a constant air flow. Movement of the port controller assembly does not require the use of seals, diaphragms, tight tolerances, bushings, bearings, hinges, guides, or lubricants.

Minteer, Daniel J. (West Richland, WA)

1999-01-01T23:59:59.000Z

453

Computer Control of Unattended Plants  

E-Print Network [OSTI]

Providing a cost-effective and reliable computer monitoring, control, and optimization package is a greater challenge for small, unattended plants than for large energy intensive facilities. This paper describes the successful application of a...

Vinson, D. R.; Chatterjee, N.

1984-01-01T23:59:59.000Z

454

Advanced gray rod control assembly  

DOE Patents [OSTI]

An advanced gray rod control assembly (GRCA) for a nuclear reactor. The GRCA provides controlled insertion of gray rod assemblies into the reactor, thereby controlling the rate of power produced by the reactor and providing reactivity control at full power. Each gray rod assembly includes an elongated tubular member, a primary neutron-absorber disposed within the tubular member said neutron-absorber comprising an absorber material, preferably tungsten, having a 2200 m/s neutron absorption microscopic capture cross-section of from 10 to 30 barns. An internal support tube can be positioned between the primary absorber and the tubular member as a secondary absorber to enhance neutron absorption, absorber depletion, assembly weight, and assembly heat transfer characteristics.

Drudy, Keith J; Carlson, William R; Conner, Michael E; Goldenfield, Mark; Hone, Michael J; Long, Jr., Carroll J; Parkinson, Jerod; Pomirleanu, Radu O

2013-09-17T23:59:59.000Z

455

Controlling Bats in Urban Areas  

E-Print Network [OSTI]

to avoid obstacles and capture insects. Bats also emit audible sounds that may be used for communi- cation. L-1913 4-08 Controlling BATS Damage In urban areas, bats may become a nuisance becauseoftheirsqueaking,scratchingandcrawl- inginattics...

Texas Wildlife Services

2008-04-15T23:59:59.000Z

456

Coherence-controlled holographic microscope  

Science Journals Connector (OSTI)

Transmitted-light coherence-controlled holographic microscope (CCHM) based on an off-axis achromatic interferometer allows us to use light sources of arbitrary degree of temporal and...

Kolman, Pavel; Chmelk, Radim

2010-01-01T23:59:59.000Z

457

Optimal Control of Distillation Systems  

E-Print Network [OSTI]

The optimum performance of a distillation system can be evaluated by examining the product purities, the product recoveries, and the system's capability to respond to small or large, expected or unexpected, plant disturbances. An optimal control...

Chatterjee, N.; Suchdeo, S. R.

1984-01-01T23:59:59.000Z

458

Control of Motorcycle Steering Instabilities  

E-Print Network [OSTI]

Control of Motorcycle Steering Instabilities SIMOS EVANGELOU, DAVID J.N. LIMEBEER, ROBIN S. SHARP-performance motorcycles often employ a steering damper producing a moment that opposes the angular velocity

Cambridge, University of

459

Nuclear reactor control room construction  

DOE Patents [OSTI]

A control room for a nuclear plant is disclosed. In the control room, objects labelled 12, 20, 22, 26, 30 in the drawing are no less than four inches from walls labelled 10.2. A ceiling contains cooling fins that extend downwards toward the floor from metal plates. A concrete slab is poured over the plates. Studs are welded to the plates and are encased in the concrete. 6 figures.

Lamuro, R.C.; Orr, R.

1993-11-16T23:59:59.000Z

460

Nuclear reactor control room construction  

DOE Patents [OSTI]

A control room 10 for a nuclear plant is disclosed. In the control room, objects 12, 20, 22, 26, 30 are no less than four inches from walls 10.2. A ceiling 32 contains cooling fins 35 that extend downwards toward the floor from metal plates 34. A concrete slab 33 is poured over the plates. Studs 36 are welded to the plates and are encased in the concrete.

Lamuro, Robert C. (Pittsburgh, PA); Orr, Richard (Pittsburgh, PA)

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Material control and accountability alternatives  

SciTech Connect (OSTI)

Department of Energy and Nuclear Regulatory Commission regulations governing material control and accountability in nuclear facilities have become more restrictive in the past decade, especially in areas that address the insider threat. As the insider threat receives greater credibility, regulations have been strengthened to increase the probability of detecting insider activity and to prevent removal of a significant quantity of Special Nuclear Material (SNM) from areas under control of the protective force.

NONE

1991-08-12T23:59:59.000Z

462

Note: Index has not been updated to reflect revisions to Chapters 2, 5 and new 11. AASHTO Green Book, 3-21 ballistic, 3-8  

E-Print Network [OSTI]

, 6-20 aging eyes, 3-16 air pollutant levels, 7-15 air pollutants, 7-13, 7-14 air pollution, 7-13 air-8 bifurcation behavior, 5-15 acceleration control, 3-24 block length, average, 6-20, 6-20, 6-22 acceleration-36 adaptive signals, 9-19 brake and carburetion systems, 7-8 adaptive signal control, 9-27 braking inputs, 3

Bertini, Robert L.

463

Lighting Controls in Commercial Buildings  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lighting Controls in Commercial Buildings Lighting Controls in Commercial Buildings Title Lighting Controls in Commercial Buildings Publication Type Report Year of Publication 2012 Authors Williams, Alison A., Barbara A. Atkinson, Karina Garbesi, Erik Page, and Francis M. Rubinstein Series Title The Journal of the Illuminating Engineering Society of North America Volume 8 Document Number 3 Pagination 161-180 Date Published January ISBN Number 1550-2716 Keywords controls, daylighting, energy, occupancy sensors, tuning. Abstract Researchers have been quantifying energy savings from lighting controls in commercial buildings for more than 30 years. This study provides a meta-analysis of lighting energy savings identified in the literature-240 savings estimates from 88 papers and case studies, categorized into daylighting strategies, occupancy strategies, personal tuning, and institutional tuning. Beginning with an overall average of savings estimates by control strategy, successive analytical filters are added to identify potential biases introduced to the estimates by different analytical approaches. Based on this meta-analysis, the bestestimates of average lighting energy savings potential are 24 percent for occupancy, 28 percent for daylighting, 31 percent for personal tuning, 36 percent for institutional tuning, and 38 percent for multiple approaches. The results also suggest that simulations significantly overestimate (by at least 10 percent) the average savings obtainable from daylighting in actual buildings.

464

Advanced nuclear plant control complex  

DOE Patents [OSTI]

An advanced control room complex for a nuclear power plant, including a discrete indicator and alarm system (72) which is nuclear qualified for rapid response to changes in plant parameters and a component control system (64) which together provide a discrete monitoring and control capability at a panel (14-22, 26, 28) in the control room (10). A separate data processing system (70), which need not be nuclear qualified, provides integrated and overview information to the control room and to each panel, through CRTs (84) and a large, overhead integrated process status overview board (24). The discrete indicator and alarm system (72) and the data processing system (70) receive inputs from common plant sensors and validate the sensor outputs to arrive at a representative value of the parameter for use by the operator during both normal and accident conditions, thereby avoiding the need for him to assimilate data from each sensor individually. The integrated process status board (24) is at the apex of an information hierarchy that extends through four levels and provides access at each panel to the full display hierarchy. The control room panels are preferably of a modular construction, permitting the definition of inputs and outputs, the man machine interface, and the plant specific algorithms, to proceed in parallel with the fabrication of the panels, the installation of the equipment and the generic testing thereof.

Scarola, Kenneth (Windsor, CT); Jamison, David S. (Windsor, CT); Manazir, Richard M. (North Canton, CT); Rescorl, Robert L. (Vernon, CT); Harmon, Daryl L. (Enfield, CT)

1993-01-01T23:59:59.000Z

465

Safety implementation of adaptive embedded control components  

Science Journals Connector (OSTI)

The paper deals with dynamic reconfigurations of component-based adaptive embedded control systems to be automatically handled at run-time by intelligent agents. We define a Control Component as a software unit supporting control tasks of the system ... Keywords: adaptive embedded control system, dynamic reconfiguration, intelligent agent, semaphore, software control component

Atef Gharbi; Mohamed Khalgui; Samir Ben Ahmed

2011-09-01T23:59:59.000Z

466

Realtime controller tuning for periodic disturbance rejection with application to active noise control  

E-Print Network [OSTI]

de Callafon. Scheduling control for periodic disturbance at-de Callafon, Scheduling Control for Periodic DisturbanceR.A. de Callafon, Scheduling Control for Periodic Distur-

Kinney, Charles E.

2009-01-01T23:59:59.000Z

467

Integrated Transmission and Distribution Control  

SciTech Connect (OSTI)

Distributed, generation, demand response, distributed storage, smart appliances, electric vehicles and renewable energy resources are expected to play a key part in the transformation of the American power system. Control, coordination and compensation of these smart grid assets are inherently interlinked. Advanced control strategies to warrant large-scale penetration of distributed smart grid assets do not currently exist. While many of the smart grid technologies proposed involve assets being deployed at the distribution level, most of the significant benefits accrue at the transmission level. The development of advanced smart grid simulation tools, such as GridLAB-D, has led to a dramatic improvement in the models of smart grid assets available for design and evaluation of smart grid technology. However, one of the main challenges to quantifying the benefits of smart grid assets at the transmission level is the lack of tools and framework for integrating transmission and distribution technologies into a single simulation environment. Furthermore, given the size and complexity of the distribution system, it is crucial to be able to represent the behavior of distributed smart grid assets using reduced-order controllable models and to analyze their impacts on the bulk power system in terms of stability and reliability. The objectives of the project were to: Develop a simulation environment for integrating transmission and distribution control, Construct reduced-order controllable models for smart grid assets at the distribution level, Design and validate closed-loop control strategies for distributed smart grid assets, and Demonstrate impact of integrating thousands of smart grid assets under closed-loop control demand response strategies on the transmission system. More specifically, GridLAB-D, a distribution system tool, and PowerWorld, a transmission planning tool, are integrated into a single simulation environment. The integrated environment allows the load flow interactions between the bulk power system and end-use loads to be explicitly modeled. Power system interactions are modeled down to time intervals as short as 1-second. Another practical issue is that the size and complexity of typical distribution systems makes direct integration with transmission models computationally intractable. Hence, the focus of the next main task is to develop reduced-order controllable models for some of the smart grid assets. In particular, HVAC units, which are a type of Thermostatically Controlled Loads (TCLs), are considered. The reduced-order modeling approach can be extended to other smart grid assets, like water heaters, PVs and PHEVs. Closed-loop control strategies are designed for a population of HVAC units under realistic conditions. The proposed load controller is fully responsive and achieves the control objective without sacrificing the end-use performance. Finally, using the T&D simulation platform, the benefits to the bulk power system are demonstrated by controlling smart grid assets under different demand response closed-loop control strategies.

Kalsi, Karanjit; Fuller, Jason C.; Tuffner, Francis K.; Lian, Jianming; Zhang, Wei; Marinovici, Laurentiu D.; Fisher, Andrew R.; Chassin, Forrest S.; Hauer, Matthew L.

2013-01-16T23:59:59.000Z

468

SP 800-82. Guide to Industrial Control Systems (ICS) Security: Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control Systems (DCS), and other control system configurations such as Programmable Logic Controllers (PLC)  

Science Journals Connector (OSTI)

The purpose of this document is to provide guidance for securing industrial control systems (ICS), including supervisory control and data acquisition (SCADA) systems, distributed control systems (DCS), and other systems performing control functions. ... Keywords: Cyber-physcial systems, ICS, Industrial Control Systems, SCADA, Supervisory Control and Data Acquisition, security controls, threats, vulnerabilities

Keith A. Stouffer; Joseph A. Falco; Karen A. Scarfone

2011-06-01T23:59:59.000Z

469

Adaptive optimal control: an algorithm for direct digital control  

SciTech Connect (OSTI)

An algorithm for applying advanced control concepts in heating, ventilating, and air conditioning (HVAC) systems has been developed at the Los Alamos Scientific Laboratory (LASL). The algorithm uses optimal control and is adaptive in nature. Simulations for a solar heated and cooled building indicate that use of this algorithm can accomplish a substantial savings in auxiliary energy consumption. In this paper, the algorithm is described and its application is illustrated with a simple example. Simulation results for a more complex system are also presented. The hardware, including the digital computer, needed to implement this algorithm is briefly discussed.

Farris, D.R.; McDonald, T.E.

1980-01-01T23:59:59.000Z

470

RHIC stochastic cooling motion control  

SciTech Connect (OSTI)

Relativistic Heavy Ion Collider (RHIC) beams are subject to Intra-Beam Scattering (IBS) that causes an emittance growth in all three-phase space planes. The only way to increase integrated luminosity is to counteract IBS with cooling during RHIC stores. A stochastic cooling system for this purpose has been developed, it includes moveable pick-ups and kickers in the collider that require precise motion control mechanics, drives and controllers. Since these moving parts can limit the beam path aperture, accuracy and reliability is important. Servo, stepper, and DC motors are used to provide actuation solutions for position control. The choice of motion stage, drive motor type, and controls are based on needs defined by the variety of mechanical specifications, the unique performance requirements, and the special needs required for remote operations in an accelerator environment. In this report we will describe the remote motion control related beam line hardware, position transducers, rack electronics, and software developed for the RHIC stochastic cooling pick-ups and kickers.

Gassner, D.; DeSanto, L.; Olsen, R.H.; Fu, W.; Brennan, J.M.; Liaw, CJ; Bellavia, S.; Brodowski, J.

2011-03-28T23:59:59.000Z

471

Magnetohydrodynamic boundary layer control system  

SciTech Connect (OSTI)

Accordingly, it is an object of the present invention to provide an active boundary layer control system which is lightweight, operates with low in put power, and occupies little physical space. It is a further object of the invention to provide a boundary layer control system which is robust and can be operated in a damaged condition without creating a hazard to the vehicle. It is yet object of the invention to provide a magnetohydrodynamic (MHD) boundary layer control system for marine vehicles which provides a force directly on the water adjacent to the vehicle hull to provide flow separation control. The invention is a boundary layer control system using magnetic and electric fields interaction to providea driving force to energize boundary layer flow around a marine vehicle. A plurality of magnets are located circumferentially around the hull. Seawater electrodes are placed between each of the magnets and between the poles of each magnet. The resulting interaction of the electric and magnetic fields produces a Lorentz force which reduces the turbulence and may even relaminarize the flow in the boundary layer.

Meng, J.C.

1993-02-11T23:59:59.000Z

472

Neutral particle beam intensity controller  

DOE Patents [OSTI]

A neutral beam intensity controller is provided for a neutral beam generator in which a neutral beam is established by accelerating ions from an ion source into a gas neutralizer. An amplitude modulated, rotating magnetic field is applied to the accelerated ion beam in the gas neutralizer to defocus the resultant neutral beam in a controlled manner to achieve intensity control of the neutral beam along the beam axis at constant beam energy. The rotating magnetic field alters the orbits of ions in the gas neutralizer before they are neutralized, thereby controlling the fraction of neutral particles transmitted out of the neutralizer along the central beam axis to a fusion device or the like. The altered path or defocused neutral particles are sprayed onto an actively cooled beam dump disposed perpendicular to the neutral beam axis and having a central open for passage of the focused beam at the central axis of the beamline. Virtually zero therough 100% intensity control is achieved by varying the magnetic field strength without altering the ion source beam intensity or its species yield.

Dagenhart, William K. (Oak Ridge, TN)

1986-01-01T23:59:59.000Z

473

Controlling Structures | Open Energy Information  

Open Energy Info (EERE)

Controlling Structures Controlling Structures Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Controlling Structures Dictionary.png Controlling Structures: No definition has been provided for this term. Add a Definition Structure Description Associated Topography Tectonic Setting Major Normal Fault Normal faults are structures in which the hanging wall is down dropped along the fault plane relative to the foot wall. They are the predominant type of structure in extensional tectonic environments, but are commonly encountered in a number of geologic settings. Major range front faults account for 3% of structural controls in the Great Basin. Mountainous, Horst and Graben Extensional Tectonics, Rift Zone Termination of a Major Normal Fault Major normal faults sometimes terminate into multiple horsetailing splays that result in increased hydrothermal fluid flux. As of 2011, 22% of all known Basin & Range structures hosting geothermal systems occur at normal fault terminations or tip-lines with multiple closely-spaced faults that enhance permeability. Mountainous, Horst and Graben Extensional Tectonics, Rift Zone

474

RELIABILITY IMPROVEMENT OF BART TRAIN CONTROL  

E-Print Network [OSTI]

2) of the BART Automatic Train Control System. BART 74-111,certain functions of the train controls that had previously2. BART vehicle automatic train control equipment. XBL 7810-

Turner, D.B.

2011-01-01T23:59:59.000Z

475

Building blocks for tobacco control: a handbook  

E-Print Network [OSTI]

FOR TOBACCO CONTROL: A HANDBOOK 60. Bowers S. ImperialFOR TOBACCO CONTROL: A HANDBOOK 90. Author unknown. YouthBlocks for Tobacco Control A Handbook W O R L D H E A LT H O

World Health Organization - Tobacco Free Initiative

2004-01-01T23:59:59.000Z

476

Model Predictive Control for Energy Efficient Buildings  

E-Print Network [OSTI]

control logics in S1 works as follow: condensed water supply temperature (control variables to be optimized by MPC include the chilled water supply temperaturesupply temperatures, and high mass flow rates. This control

Ma, Yudong

2012-01-01T23:59:59.000Z

477

Saving lighting energy with a ''wireless'' controller  

SciTech Connect (OSTI)

Describes the use of an automatic control system designated the Central Control System (CCS), which requires no wiring to be run between controller and control points. The controller is simply plugged into any wall receptacle; it uses exising building power wiring to transmit command signals to the receiver control modules at the control points. The command pulses from the controller are sent through to the receiver modules when the 60 Hz power sine wave crosses the zero axis. Three types of controllers are available: the basic central programmable controller, a miniature desktop unit for limited local control, and a portable unit that security guards or janitorial personnel can use to override the central controller. Installed for less than $19,000, the new system is delivering approximately $50,000 in annual pretax savings.

Beal, J.D.

1983-05-12T23:59:59.000Z

478

HVDC control developments - addressing system requirements  

SciTech Connect (OSTI)

This article describes typical high voltage direct current (HVDC) control systems and some of the new developments in the control area. HVDC control systems are showing their flexible characteristics as demonstrated, for example, by the new modulation, torsional damping, and alternating current voltage and reactive power controllers. Extensive studies are conducted to design and integrate such controllers into HVDC systems and to assure against any detrimental interactions within the total control system. 8 figures.

Hauth, R.L.; Patel, H.S.; Piwko, R.J.

1984-01-01T23:59:59.000Z

479

Nitrogen Oxides Emission Control Options  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nitrogen Nitrogen Oxides Emission Control Options for Coal-Fired Electric Utility Boilers Ravi K. Srivastava and Robert E. Hall U.S. Environmental Protection Agency, National Risk Management Research Laboratory, Air Pollution Prevention and Control Division, Research Triangle Park, NC Sikander Khan and Kevin Culligan U.S. Environmental Protection Agency, Office of Air and Radiation, Clean Air Markets Division, Washington, DC Bruce W. Lani U.S. Department of Energy, National Energy Technology Laboratory, Environmental Projects Division, Pittsburgh, PA ABSTRACT Recent regulations have required reductions in emissions of nitrogen oxides (NO x ) from electric utility boilers. To comply with these regulatory requirements, it is increas- ingly important to implement state-of-the-art NO x con- trol technologies on coal-fired utility boilers. This paper reviews NO x control

480

Surveillance Guides - Work Control Process  

Broader source: Energy.gov (indexed) [DOE]

Work Control Process Work Control Process 1.0 Objective The objective of this surveillance guide is to provide lines of inquiry for evaluating the effectiveness of the contractor's work control process. Users should be cognizant that the lines of inquiry need to be further tailored to fit specific facilities or activities in accordance with contractual mechanisms such as Maintenance Implementation Plans, Conduct of Operations Implementation Plans, and the Integrated Safety Management System Description. 2.0 References 2.1 DOE 4330.4B Maintenance Management Program 2.2 48 CFR 1970.5204-2 Department of Energy Acquisition Regulations 2.3 DOE O 5480.19, Conduct of Operations 2.4 10 CFR 830.120, Quality Assurance 3.0 Requirements Implemented This surveillance is conducted to verify implementation of Core

Note: This page contains sample records for the topic "braking traction control" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Feedback control of resistive instabilities  

SciTech Connect (OSTI)

Resistive instabilities are responsible for much of the global behavior and the determination of the possible domains of operation of tokamaks. Their successful control could have definite advantages, even making available new regimes of operation. Elimination of sawtoothing might allow operation with higher currents and more peaked current profiles, with q on axis well below unity. In this work different feedback schemes are explored. Simple analytical derivations of the effects of local heating and current drive feedback are presented. Although control of modes with m greater than or equal to 2 is fairly straightforward, the control of the m = 1 mode is more difficult because of its proximity to ideal instability. The most promising scheme utilizes high energy trapped particles. 20 refs., 3 figs.

White, R.B.; Rutherford, P.H.; Furth, H.P.; Park, W.; Chen, L.

1985-12-01T23:59:59.000Z

482

Multi-robot control interface  

DOE Patents [OSTI]

Methods and systems for controlling a plurality of robots through a single user interface include at least one robot display window for each of the plurality of robots with the at least one robot display window illustrating one or more conditions of a respective one of the plurality of robots. The user interface further includes at least one robot control window for each of the plurality of robots with the at least one robot control window configured to receive one or more commands for sending to the respective one of the plurality of robots. The user interface further includes a multi-robot common window comprised of information received from each of the plurality of robots.

Bruemmer, David J. (Idaho Falls, ID); Walton, Miles C. (Idaho Falls, ID)

2011-12-06T23:59:59.000Z

483

Neutral particle beam intensity controller  

DOE Patents [OSTI]

The neutral beam intensity controller is based on selected magnetic defocusing of the ion beam prior to neutralization. The defocused portion of the beam is dumped onto a beam dump disposed perpendicular to the beam axis. Selective defocusing is accomplished by means of a magnetic field generator disposed about the neutralizer so that the field is transverse to the beam axis. The magnetic field intensity is varied to provide the selected partial beam defocusing of the ions prior to neutralization. The desired focused neutral beam portion passes along the beam path through a defining aperture in the beam dump, thereby controlling the desired fraction of neutral particles transmitted to a utilization device without altering the kinetic energy level of the desired neutral particle fraction. By proper selection of the magnetic field intensity, virtually zero through 100% intensity control of the neutral beam is achieved.

Dagenhart, W.K.

1984-05-29T23:59:59.000Z

484

Pulse combustor with controllable oscillations  

DOE Patents [OSTI]

A pulse combustor having thermally induced pulse combustion in a continuously flowing system is described. The pulse combustor is fitted with at lease one elongated ceramic body which significantly increases the heat transfer area in the combustion chamber of the combustor. The ceramic body or bodies possess sufficient mass and heat capacity to ignite the fuel-air charge once the ceramic body or bodies are heated by conventional spark plug initiated combustion so as to provide repetitive ignition and combustion of sequentially introduced fuel-air charges without the assistance of the spark plug and the rapid quenching of the flame after each ignition in a controlled manner so as to provide a selective control over the oscillation frequency and amplitude. Additional control over the heat transfer in the combustion chamber is provided by employing heat exchange mechanisms for selectively heating or cooling the elongated ceramic body or bodies and/or the walls of the combustion chamber.

Richards, George A. (Morgantown, WV); Welter, Michael J. (Columbiana, OH); Morris, Gary J. (Morgantown, WV)

1992-01-01T23:59:59.000Z

485

Output Feedback Control and Optimal Bandwidth Allocation of Networked Control Systems  

E-Print Network [OSTI]

A networked control system (NCS) is a control system where sensors, actuators, and controllers are interconnected over a communication network. This dissertation presents a framework for modeling, stability analysis, optimal control, and bandwidth...

Dong, Jiawei

2013-04-12T23:59:59.000Z

486

NETL: Mercury Emissions Control Technologies - Mercury Control For Plants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mercury Control For Plants Firing Texas Lignite and Equipped with ESP-wet FGD Mercury Control For Plants Firing Texas Lignite and Equipped with ESP-wet FGD URS Group, Inc., in collaboration with EPRI, Apogee Scientific, AEP, Texas Genco, and TXU Power, ADA-ES, will evaluate sorbent injection for mercury control in an 85/15 blend Texas lignite/PRB derived flue gas, upstream of a cold-side ESP – wet FGD combination. Full-scale sorbent injection tests conducted with various sorbents and combinations of fuel and plant air pollution control devices (APCD) have provided a good understanding of variables that affect sorbent performance. However, many uncertainties exist regarding long-term performance and data gaps remain for specific plant configurations. For example, sorbent injection has not been demonstrated at full-scale for plants firing Texas lignite, which represent approximately 10% of the annual U.S. power plant mercury emissions. The low and variable chloride content of Texas lignite may pose a challenge to achieving high levels of mercury removal with sorbent injection. Furthermore, activated carbon injection may render the fly ash unsuitable for sale, posing an economic liability to Texas lignite utilities. Alternatives to standard activated carbon, such as non-carbon sorbents and alternate injection locations (Toxecon II), have not been fully explored. Toxecon II involves sorbent injection in the middle field(s) of an ESP, thus preserving the integrity of the fly ash in the first fields.

487

Federal Energy Management Program: Lighting Control Types  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lighting Control Lighting Control Types to someone by E-mail Share Federal Energy Management Program: Lighting Control Types on Facebook Tweet about Federal Energy Management Program: Lighting Control Types on Twitter Bookmark Federal Energy Management Program: Lighting Control Types on Google Bookmark Federal Energy Management Program: Lighting Control Types on Delicious Rank Federal Energy Management Program: Lighting Control Types on Digg Find More places to share Federal Energy Management Program: Lighting Control Types on AddThis.com... Energy-Efficient Products Federal Requirements Covered Product Categories Product Designation Process Low Standby Power Energy & Cost Savings Calculators Model Acquisitions Language Working Group Resources Technology Deployment Renewable Energy

488

Boiler Maximum Achievable Control Technology (MACT) Technical...  

Broader source: Energy.gov (indexed) [DOE]

Boiler Maximum Achievable Control Technology (MACT) Technical Assistance - Fact Sheet, May 2014 Boiler Maximum Achievable Control Technology (MACT) Technical Assistance - Fact...

489

Model Predictive Control for Energy Efficient Buildings  

E-Print Network [OSTI]

Learning Control for Thermal Energy Storage Systems. In:Predictive Control of Thermal Energy Storage in Buildingmaking use of building thermal energy storage, and this work

Ma, Yudong

2012-01-01T23:59:59.000Z

490

Open architecture in control system integration  

SciTech Connect (OSTI)

Open architecture offers the manufacturing community a number of advantages in the integration of future machine control systems. Among these advantages is the ability to upgrade and take advantage of innovative new control strategies. A key enabling technology in open architecture control systems is the digital signal processor (DSP). DSPs can be used to provide a complete control system or can enhance the computational capability of larger control systems. The use of DSPs in the integration of open architecture control systems is discussed, including their impact on reliability and control system functionality. In addition, the role of DSPs in control system architecture is addressed.

Wysor, R.W. [Oak Ridge National Lab., TN (United States); Carnal, C.L. [Tennessee Technological Univ., Cookeville, TN (United States); Igou, R.E. [Oak Ridge Y-12 Plant, TN (United States)

1993-09-01T23:59:59.000Z

491

Facile and controllable electrochemical reduction of graphene...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and controllable electrochemical reduction of graphene oxide and its applications. Facile and controllable electrochemical reduction of graphene oxide and its applications....

492

Controlling proton source speeds catalyst | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Controlling proton source speeds catalyst Controlling proton source speeds catalyst Nickel-based catalyst three times faster with adjustments to key acid Research showing that...

493

EERE Quality Control Workshop | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Quality Control Workshop EERE Quality Control Workshop The U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) held the Office of Energy Efficiency and...

494

Johnson Controls: Meeting Minutes | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Meeting Minutes Johnson Controls: Meeting Minutes Meeting with DOEOMB Officials on Advanced Technology Vehicle Loan Program Johnson Controls: Meeting Minutes More Documents &...

495

Development of Building Automation and Control Systems  

E-Print Network [OSTI]

A design flow for building automation and control systems,Development of Building Automation and Control Systems Yangdesign of the build- ing automation system (including the

Yang, Yang; Zhu, Qi; Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

2012-01-01T23:59:59.000Z

496

Model Predictive Control for Energy Efficient Buildings  

E-Print Network [OSTI]

automation system Automated Logic Web Control. In theto the campus through the Automated Logics Web Control (ALC)using WebCTRL developed by Automated Logic Corporation. The

Ma, Yudong

2012-01-01T23:59:59.000Z

497

Particulate Emissions Control by Advanced Filtration Systems...  

Broader source: Energy.gov (indexed) [DOE]

Particulate Emissions Control by Advanced Filtration Systems or GDI Engines Particulate Emissions Control by Advanced Filtration Systems or GDI Engines 2013 DOE Hydrogen and Fuel...

498

Criticality Safety Controls Implementation Inspection Criteria...  

Broader source: Energy.gov (indexed) [DOE]

Criticality Safety Controls Implementation Inspection Criteria, Approach, and Lines of Inquiry, October 23, 2009, (HSS CRAD 64-18, Rev 0 ) Criticality Safety Controls...

499

Optimization Online - Processor Speed Control with Thermal ...  

E-Print Network [OSTI]

Sep 29, 2007 ... ... such as power supply voltage) can be controlled, and we model the dissipated ... Keywords: temperature-aware processor control, convex...

Almir Mutapcic

2007-09-29T23:59:59.000Z

500

Document Control Program | The Ames Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Training, Documents, & Records Document Control Program The Document Control (DC) Plan ensures that only approved, current versions of such documents are used in the workplace or...