skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Trouble shooting system for an electric vehicle

Abstract

This patent describes a trouble shooting system for an electric vehicle. The electric vehicle contains a driving mechanism, a driving operation part and a control device. The driving mechanism includes a power source, an electric motor and a modality for controlling output level from the power supply to the electric motor in response to the driving operation part. The control device includes a microprocessor which receives commands from the driving operation part and supplies a control signal to the driving mechanism in response to a stored drive control program. The trouble shooting system consists of control device storage mechanisms for storing trouble shooting programs for various parts of the vehicle which are executed by the microprocessor. This system also includes a command generating modality responsive to manual operation for supplying a command to the microprocessor to initiate the execution and read out of a selected trouble shooting program and a method by which the microprocessor may display the program being processed.

Inventors:
Publication Date:
OSTI Identifier:
6023296
Patent Number(s):
US 4564942
Assignee:
Hitachi, Ltd., Tokyo NOV; EDB-86-072929
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 17 Mar 1983
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; ELECTRIC-POWERED VEHICLES; COMPUTERIZED CONTROL SYSTEMS; FAILURE MODE ANALYSIS; CONTROL EQUIPMENT; DISPLAY DEVICES; ELECTRIC MOTORS; MICROPROCESSORS; POWER SUPPLIES; PROGRAMMING; READOUT SYSTEMS; COMPUTERS; CONTROL SYSTEMS; ELECTRONIC CIRCUITS; ELECTRONIC EQUIPMENT; EQUIPMENT; MICROELECTRONIC CIRCUITS; MOTORS; SYSTEM FAILURE ANALYSIS; SYSTEMS ANALYSIS; VEHICLES; 330300* - Advanced Propulsion Systems- Electric-Powered Systems

Citation Formats

Horiuchi, M. Trouble shooting system for an electric vehicle. United States: N. p., 1986. Web.
Horiuchi, M. Trouble shooting system for an electric vehicle. United States.
Horiuchi, M. 1986. "Trouble shooting system for an electric vehicle". United States. doi:.
@article{osti_6023296,
title = {Trouble shooting system for an electric vehicle},
author = {Horiuchi, M.},
abstractNote = {This patent describes a trouble shooting system for an electric vehicle. The electric vehicle contains a driving mechanism, a driving operation part and a control device. The driving mechanism includes a power source, an electric motor and a modality for controlling output level from the power supply to the electric motor in response to the driving operation part. The control device includes a microprocessor which receives commands from the driving operation part and supplies a control signal to the driving mechanism in response to a stored drive control program. The trouble shooting system consists of control device storage mechanisms for storing trouble shooting programs for various parts of the vehicle which are executed by the microprocessor. This system also includes a command generating modality responsive to manual operation for supplying a command to the microprocessor to initiate the execution and read out of a selected trouble shooting program and a method by which the microprocessor may display the program being processed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1986,
month = 1
}
  • A field test scheduled to get underway at Jersey Central Power and Light's Gilbert Power Station in Milford, NJ, promises to provide an important milestone in the application of the new computer based discipline of artificial intelligence to gas turbine operations. Field tests, on the MS7001B combined-cycle installation, will show if computerized trouble shooting can be a better and faster job than experienced maintenance specialists.
  • This patent describes a vehicle ignition device which is constructed to lengthen an electrical discharge time of an ignition coil, a diagnostic device for diagnosing whether or not the longer electrical discharge is occurring normally, comprising: measuring means connected to a primary side of the ignition coil for measuring a level condition of a voltage on the primary side of the ignition coil; means connected to the measuring means for determining whether or not the voltage level measured by the measuring means exceeds a predetermined value. The determining means is operable only after a predetermined time is elapsed from themore » time the ignition signal is generated, the determining means including timer means for measuring the predetermined time; and indicating means for indicating the result of the determination which is performed by the determination means.« less
  • A control system for an electric or hybrid electric vehicle includes a vehicle system controller and a control circuit having an electric immersion heater. The heater is electrically connected to the vehicle's high voltage bus and is thermally coupled to a coolant loop containing a heater core for the vehicle's climate control system. The system controller responds to cabin heat requests from the climate control system by generating a pulse width modulated signal that is used by the control circuit to operate the heater at a duty cycle appropriate for the amount of cabin heating requested. The control system alsomore » uses the heater to dissipate excess energy produced by an auxiliary power unit and to provide electric braking when regenerative braking is not desirable and manual braking is not necessary. The control system further utilizes the heater to provide a safe discharge of a bank of energy storage capacitors following disconnection of the battery or one of the high voltage connectors used to transmit high voltage operating power to the various vehicle systems. The control circuit includes a high voltage clamping circuit that monitors the voltage on the bus and operates the heater to clamp down the bus voltage when it exceeds a pre-selected maximum voltage. The control system can also be used to phase in operation of the heater when the bus voltage exceeds a lower threshold voltage and can be used to phase out the auxiliary power unit charging and regenerative braking when the battery becomes fully charged.« less
  • This patent describes an electric vehicle drive system, comprising: a vehicle drive wheel, a reversible electric motor-brake connected with the wheel, a battery source of stored electrical energy in circuit with the motor, controller means in the circuit, a motor-generator in circuit with the controller means, a flywheel connected in drive relation with the controller means, accelerator and brake means in circuit with the controller means. The controller means is operable to control current flow between the battery source and the motor generator and the motor-brake to limit the current supplied to the motor-brake from the battery source in responsemore » to the current demand to drive the drive wheel and to supply current from the motor-generator to the drive wheel. A mounting means supports the flywheel for angular movement on an axis transverse to the axis of rotation of the flywheel, the mounting means supporting the flywheel on a horizontal axis and being angularly moveable on a vertical axis.« less
  • 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 hydraulic 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 controllermore » 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. 10 figs.« less