Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable

Jiang, Li; Lee, Donghoon; Yilmaz, Hakan; Stefanopoulou, Anna

Title: Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable

Abstract

Methods and systems for engine control optimization are provided. A first and a second operating condition of a vehicle engine are detected. An initial value is identified for a first and a second engine control parameter corresponding to a combination of the detected operating conditions according to a first and a second engine map look-up table. The initial values for the engine control parameters are adjusted based on a detected engine performance variable to cause the engine performance variable to approach a target value. A first and a second sensitivity of the engine performance variable are determined in response to changes in the engine control parameters. The first engine map look-up table is adjusted when the first sensitivity is greater than a threshold, and the second engine map look-up table is adjusted when the second sensitivity is greater than a threshold.

Inventors:: Jiang, Li; Lee, Donghoon; Yilmaz, Hakan; Stefanopoulou, Anna

Issue Date:: 2014-10-28

Research Org.:: Robert Bosch GmbH, Stuttgart, DE (Germany)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1162104

Patent Number(s):: 8874351

Application Number:: 13/435,535

Assignee:: Robert Bosch GmbH (Stuttgart, DE)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

Show more

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/30 - Use of alternative fuels
Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D2041/001 - {for engines with variable valve actuation}
F02D41/248 - {using a plurality of learned values}
F02D41/08 - for idling
F02D41/2445 - {characterised by a plurality of learning conditions or ranges}
F02D41/1408 - {Dithering techniques}

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02P - IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES
F02P5/153 - dependent on combustion pressure

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D41/2441 - {characterised by the learning conditions}
F02D37/02 - one of the functions being ignition
F02D19/084 - {Blends of gasoline and alcohols, e.g. E85}
F02D2041/1432 - {the system including a filter, e.g. a low pass or high pass filter}
F02D13/0215 - {changing the valve timing only}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/40 - Engine management systems

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D2041/1419 - {the control loops being cascaded, i.e. being placed in series or nested}
F02D41/1406 - {with use of a optimisation method, e.g. iteration}
F02D41/2438 - {Active learning methods}
F02D41/2432 - {Methods of calibration}

Show less

DOE Contract Number:: FC26-07NT43274

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Mar 30

Country of Publication:: United States

Language:: English

Subject:: 33 ADVANCED PROPULSION SYSTEMS

Citation Formats


                    Jiang, Li, Lee, Donghoon, Yilmaz, Hakan, and Stefanopoulou, Anna. Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable.  United States: N. p., 2014. 
        Web.

Copy to clipboard


                    Jiang, Li, Lee, Donghoon, Yilmaz, Hakan, & Stefanopoulou, Anna. Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable.  United States.

Copy to clipboard


                    Jiang, Li, Lee, Donghoon, Yilmaz, Hakan, and Stefanopoulou, Anna. Tue .  
        "Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable".  United States.  https://www.osti.gov/servlets/purl/1162104.

Copy to clipboard


                    
@article{osti_1162104,

  title        = {Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable},

  author       = {Jiang, Li and Lee, Donghoon and Yilmaz, Hakan and Stefanopoulou, Anna},

  abstractNote = {Methods and systems for engine control optimization are provided. A first and a second operating condition of a vehicle engine are detected. An initial value is identified for a first and a second engine control parameter corresponding to a combination of the detected operating conditions according to a first and a second engine map look-up table. The initial values for the engine control parameters are adjusted based on a detected engine performance variable to cause the engine performance variable to approach a target value. A first and a second sensitivity of the engine performance variable are determined in response to changes in the engine control parameters. The first engine map look-up table is adjusted when the first sensitivity is greater than a threshold, and the second engine map look-up table is adjusted when the second sensitivity is greater than a threshold.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {10}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Self-optimising control of an SI-engine using a torque sensor
journal, May 2008

Larsson, Stefan; Andersson, Ingemar
Control Engineering Practice, Vol. 16, Issue 5
https://doi.org/10.1016/j.conengprac.2007.05.009

Extremum seeking methods for optimization of variable cam timing engine operation
journal, May 2006

Popovic, D.; Jankovic, M.; Magner, S.
IEEE Transactions on Control Systems Technology, Vol. 14, Issue 3
https://doi.org/10.1109/TCST.2005.863660

Similar Records in DOE Patents and OSTI.GOV collections:

Concurrently adjusting interrelated control parameters to achieve optimal engine performance

Patent Jiang, Li; Lee, Donghoon; Yilmaz, Hakan; ...

Methods and systems for real-time engine control optimization are provided. A value of an engine performance variable is determined, a value of a first operating condition and a value of a second operating condition of a vehicle engine are detected, and initial values for a first engine control parameter and a second engine control parameter are determined based on the detected first operating condition and the detected second operating condition. The initial values for the first engine control parameter and the second engine control parameter are adjusted based on the determined value of the engine performance variable to cause themore » « less
Full Text Available
Engine control system having fuel-based adjustment

Patent Willi, Martin L [Dunlap, IL]; Fiveland, Scott B [Metamora, IL]; Montgomery, David T [Edelstein, IL]; ...

A control system for an engine having a cylinder is disclosed having an engine valve configured to affect a fluid flow of the cylinder, an actuator configured to move the engine valve, and an in-cylinder sensor configured to generate a signal indicative of a characteristic of fuel entering the cylinder. The control system also has a controller in communication with the actuator and the sensor. The controller is configured to determine the characteristic of the fuel based on the signal and selectively regulate the actuator to adjust a timing of the engine valve based on the characteristic of the fuel.
Full Text Available
Parameter distribution mapping in a gas turbine engine

Patent DeSilva, Upul P.; Claussen, Heiko

A profile map of parameter values in a region is determined based on average values along linear paths through the region. In one example, a temperature map of a region of a gas turbine engine is created based on time-of-flight measurements from acoustic transceiver pairs arranged circumferentially around the region. A speed of sound for each transceiver pair is determined based on the time-of-flight measurements. An average temperature along each path is estimated from the time of flight, and the profile map is computed from the average temperatures. The profile map may be computed using a polynomial approximation technique, amore » « less
Full Text Available
Independently variable phase and stroke control for a double acting Stirling engine

Patent Berchowitz, David M [Scotia, NY]

A phase and stroke control apparatus for the pistons of a Stirling engine includes a ring on the end of each piston rod in which a pair of eccentrics is arranged in series, torque transmitting relationship. The outer eccentric is rotatably mounted in the ring and is rotated by the orbiting ring; the inner eccentric is mounted on an output shaft. The two eccentrics are mounted for rotation together within the ring during normal operation. A device is provided for rotating one eccentric with respect to another to change the effective eccentricity of the pair of eccentrics. A separately controlledmore » « less
Full Text Available
Variable cooling circuit for thermoelectric generator and engine and method of control

Patent Prior, Gregory P

An apparatus is provided that includes an engine, an exhaust system, and a thermoelectric generator (TEG) operatively connected to the exhaust system and configured to allow exhaust gas flow therethrough. A first radiator is operatively connected to the engine. An openable and closable engine valve is configured to open to permit coolant to circulate through the engine and the first radiator when coolant temperature is greater than a predetermined minimum coolant temperature. A first and a second valve are controllable to route cooling fluid from the TEG to the engine through coolant passages under a first set of operating conditionsmore » « less
Full Text Available

Similar Records

Title: Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable

Abstract

Citation Formats

Self-optimising control of an SI-engine using a torque sensor journal, May 2008

Extremum seeking methods for optimization of variable cam timing engine operation journal, May 2006

Self-optimising control of an SI-engine using a torque sensor
journal, May 2008

Extremum seeking methods for optimization of variable cam timing engine operation
journal, May 2006