JPS586934U

JPS586934U - Engine idle speed control device

Info

Publication number: JPS586934U
Application number: JP9926981U
Authority: JP
Inventors: 田原　良隆; 横奥　克日子
Original assignee: マツダ株式会社
Priority date: 1981-07-03
Filing date: 1981-07-03
Publication date: 1983-01-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、気化器式エンジンに組み込んだ本考案のアイ
ドル回転制御装置の構成機能図、第２図は、第１図に示
したアイドル回転制御装置の主要部を拡大して示す拡大
図、第３図は、本考案のア、イドル回転制御装置の作動
の一例を示すフローチャートである。１・・・・・・エンジン、２・・・・・・吸気’を部、
３・・・・・・スロットル弁、５・・・・・・ダイヤフ
ラム式アクチュエータ、６・・・・・・ダイヤフラム、
９・・曲大気管路、１０・・曲負圧管路、１１．１２・
・・・・・第１、第２電磁弁、１３・・・・・・マイク
ロコンピュータ、２０・・・・・・制御補正装置、２１
・・・・・・補正管路、２２・・・・・・第３電磁弁、
２３・・・・・・リミットスーイッチ。第２図　　゛１φ −１１１FIG. 1 is a structural functional diagram of the idle rotation control device of the present invention incorporated into a carburetor engine, and FIG. 2 is an enlarged view showing the main parts of the idle rotation control device shown in FIG. 1. FIG. 3 is a flowchart showing an example of the operation of the idle rotation control device of the present invention. 1...Engine, 2...Intake' part,
3...Throttle valve, 5...Diaphragm actuator, 6...Diaphragm,
9. Curved atmospheric pipe, 10. Curved negative pressure pipe, 11.12.
...First and second solenoid valves, 13...Microcomputer, 20...Control correction device, 21
...Correction pipe line, 22...Third solenoid valve,
23...Limit switch. Figure 2 ゛1φ -111

Claims

[Scope of utility model registration request]

A rotation detector that detects the engine rotation speed, a flow control valve that controls the amount of intake air supplied to the engine in order to adjust the engine rotation speed, an actuator that drives and controls the flow control valve, and an operating state of the engine. The target idle rotation speed set accordingly and the actual idle rotation speed detected by the rotation detector are compared to detect the difference between the two speeds, and based on the difference between the two speeds, the idle rotation speed is adjusted to the target idle rotation speed. In an engine idle rotation control device having a control circuit that drives and controls the flow rate control valve by causing the actuator to match the idle rotation speed, detecting that the operating amount of the actuator exceeds a predetermined value, and detecting an abnormality. an abnormality detection device that generates a signal;
An engine idle rotation control device comprising: a correction means for controlling the operation of the actuator in an engine deceleration direction based on the abnormality signal from the abnormality detection device.