JPS6434444U

JPS6434444U -

Info

Publication number: JPS6434444U
Application number: JP12862887U
Authority: JP
Priority date: 1987-08-26
Filing date: 1987-08-26
Publication date: 1989-03-02

Description

[Brief explanation of the drawing]

第１図は本考案の構成を示すブロツク図、第２
図は本考案の一実施例を示すシステム図、第３図
は燃料カツト制御ルーチンのフローチヤートであ
る。１……機関、３……スロツトル弁、４……燃料
噴射弁、５……コントロールユニツト、６……エ
アフローメータ、７……クランク角センサ、８…
…スロツトルセンサ、８ａ……アイドルスイツチ
。 Figure 1 is a block diagram showing the configuration of the present invention;
The figure is a system diagram showing one embodiment of the present invention, and FIG. 3 is a flowchart of a fuel cut control routine. DESCRIPTION OF SYMBOLS 1... Engine, 3... Throttle valve, 4... Fuel injection valve, 5... Control unit, 6... Air flow meter, 7... Crank angle sensor, 8...
...Throttle sensor, 8a...Idle switch.

Claims

[Scope of utility model registration request]

The throttle valve includes a fuel injection means for injecting fuel into each cylinder of the engine, a throttle valve state detection means for detecting the state of the throttle valve, an engine rotation speed detection means for detecting the engine rotation speed, and the throttle valve is in a fully closed state. a fuel cut means for stopping the operation of the fuel injection means with the fuel cut start condition being that the engine rotation speed is equal to or higher than a predetermined fuel cut rotation speed; A first recovery means restarts the operation of the fuel injection means with the recovery condition being that the rotation speed has reached the recovery speed, and a first recovery means that recovers when the throttle valve changes from a fully closed state to an open state while fuel injection is stopped by the fuel cut means. In an electronically controlled fuel injection device for an internal combustion engine, the electronically controlled fuel injection device for an internal combustion engine is provided with a second recovery means for restarting the operation of the fuel injection means as a condition,
Acceleration level determining means that determines sudden acceleration or slow acceleration based on the amount of change in throttle valve opening when the recovery condition of the second recovering means is satisfied; and the second recovering means is used only when sudden acceleration is determined by the acceleration level determining means. The internal combustion engine is characterized by being provided with partial cylinder recovery means for restarting only fuel injection to some cylinders by the fuel injection means for a predetermined period when fuel injection is restarted, and delaying restart of fuel injection to other cylinders. The engine's electronically controlled fuel injection system.