JPS5820355U

JPS5820355U - Idle rotation control device

Info

Publication number: JPS5820355U
Application number: JP11299981U
Authority: JP
Inventors: 好一佐藤; 矢野　恒臣
Original assignee: 日産自動車株式会社
Priority date: 1981-07-31
Filing date: 1981-07-31
Publication date: 1983-02-08

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 the drawing]

第１図は、従来例の構成図、第２図は、この考案の一実
施例の構成図、第３図は、この考案の制御の順序を示し
たブロック図、第４図は、吸入空気流量一定時の内燃機
関回転数一点火時期特性図、第５図は、回転変動を少な
くして行く過程の波形図を示す。符号の説明、１・・・０２センサ、２・・・制御ユニッ
ト、２−１・・・混合比フィードバック制御部、２−２
・・・点火時期フィードバック制御部、３・・・燃料噴
射弁、４・・・空気制御弁、５・・・回転数センサ（デ
ィストリビュータ）、６・・・イグニッションコイル、
７・・・点火栓、８・・・エアクリーナ、９・・・吸入
空気流量計、１０・・・絞弁、１１・・・バイパス通路
、１２・・・絞弁センサ、Ｅ・・・内燃機関。Fig. 1 is a block diagram of a conventional example, Fig. 2 is a block diagram of an embodiment of this invention, Fig. 3 is a block diagram showing the control order of this invention, and Fig. 4 is a diagram showing the intake air. FIG. 5, which is a characteristic diagram of internal combustion engine rotational speed versus ignition timing when the flow rate is constant, shows a waveform diagram in the process of reducing rotational fluctuations. Explanation of symbols, 1...02 sensor, 2... control unit, 2-1... mixture ratio feedback control section, 2-2
... Ignition timing feedback control unit, 3... Fuel injection valve, 4... Air control valve, 5... Rotation speed sensor (distributor), 6... Ignition coil,
7... Spark plug, 8... Air cleaner, 9... Intake air flow meter, 10... Throttle valve, 11... Bypass passage, 12... Throttle valve sensor, E... Internal combustion engine .

Claims

[Scope of utility model registration request]

An idling rotation control device for an internal combustion engine that maintains the idling rotation speed of the internal combustion engine at a set rotation speed includes an 02 sensor that detects the oxygen concentration in exhaust gas, an intake air flow meter that detects the engine intake air amount, and an engine A rotation speed sensor that detects the rotation speed, an air-fuel ratio feedback control section that maintains the engine air-fuel ratio at a set value based on signals from these sensors, a throttle valve sensor that detects the throttle valve opening degree during idling, and an idling detection unit that detects idling based on signals from a throttle valve sensor and an engine speed sensor;
An idling rotation control device comprising: an ignition timing feedback control section that corrects and controls ignition timing during idling based on a signal from a 0° sensor.