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Patent Searching and Data


Title:
ENGINE CONTROL SYSTEM FOR VEHICLE
Document Type and Number:
Japanese Patent JP2004027985
Kind Code:
A
Abstract:

To improve the evacuation traveling performance in generation of abnormality in an electronic throttle control system.

When severe abnormality is generated, an abnormality storage element 116 is operated, to deenergize a load relay 105 for feeding, of a motor 104 for driving a throttle valve and to default return the throttle valve, and a warning/display unit 106a is operated to perform the evacuation traveling by reducing an upper limit engine rotating speed by controlling a fuel injection valve 137. As the reduced rotating speed, a lower limit threshold value N1 in stopping, a rotating speed Na approximately in proportion to the output of an accelerator position sensor, a rotating speed Nb approximately in inverse proportion to the output of a throttle position sensor, or a default threshold value rotating speed N2 is selected to perform various evacuation traveling.


Inventors:
HASHIMOTO KOJI
NAKAMOTO KATSUYA
Application Number:
JP2002186729A
Publication Date:
January 29, 2004
Filing Date:
June 26, 2002
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F02P5/15; F02D9/02; F02D11/10; F02D17/04; F02D41/22; F02D45/00; F02D31/00; (IPC1-7): F02D9/02; F02D11/10; F02D17/04; F02D41/22; F02D45/00; F02P5/15
Attorney, Agent or Firm:
Masuo Oiwa
Toshihide Kodama
Takenaka Ikuo
Keigo Murakami