Title:
【発明の名称】エンジンのアイドル回転数制御装置
Document Type and Number:
Japanese Patent JPH0730728
Kind Code:
B2
Abstract:
A control system for an internal combustion engine comprises an engine speed sensor, a section for producing a feedback correction value in accordance with a difference between speed of the engine detected by the engine speed sensor and a target idling speed when the engine is in a specific idle operation, a section for producing a learning control correction value based on the feedback correction value and storing the produced learning control correction value in a memory to renew a stored learning control correction value, a section for the performing a feedback control for the speed of the engine with the feedback correction value and the learning control correction value combined with a fundamental control value to keep an actual idling speed of the engine at the target idling speed, an air-fuel ratio sensor, a section for performing a feedback control for an air-fuel ratio of a fuel mixture in accordance with an detection output of the air-fuel ratio sensor, a section for detecting malfunction of the air-fuel ratio sensor, and a section for prohibiting the production of a new learning control correction value when the malfunction of the air-fuel ratio sensor is detected.
Inventors:
Takayuki Okano
Yukio Masuda
Yukio Masuda
Application Number:
JP13593587A
Publication Date:
April 10, 1995
Filing Date:
May 30, 1987
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D31/00; F02D41/00; F02D41/14; F02D41/16; F02D41/24; (IPC1-7): F02D41/16; F02D41/14
Domestic Patent References:
| JP5685539A | ||||
| JP60230539A | ||||
| JP6067747A | ||||
| JP60111037A | ||||
| JP56115540U | ||||
| JP5674837U |
Attorney, Agent or Firm:
Sadaaki Kambara
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