JPS63166647U

JPS63166647U -

Info

Publication number: JPS63166647U
Application number: JP5862687U
Authority: JP
Priority date: 1987-04-20
Filing date: 1987-04-20
Publication date: 1988-10-31
Anticipated expiration: 2002-04-20
Also published as: JPH0540289Y2

Description

[Brief explanation of the drawing]

第１図は本考案のクレーム対応図、第２図は本
考案の一実施例を示す構成図、第３図は同上のフ
ローチヤート、第４図は同上の作用を説明するた
めのタイムチヤート、第５図は従来の欠点を説明
するためのタイムチヤートである。１…制御装置、２…エアフローメータ、３…ク
ランク角センサ、８…駆動回路、９…燃料噴射弁
。 Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is a configuration diagram showing an embodiment of the present invention, Fig. 3 is a flowchart of the same, Fig. 4 is a time chart for explaining the operation of the above, FIG. 5 is a time chart for explaining the conventional drawbacks. DESCRIPTION OF SYMBOLS 1...Control device, 2...Air flow meter, 3...Crank angle sensor, 8...Drive circuit, 9...Fuel injection valve.

Claims

[Scope of utility model registration request]

rotational speed detection means for detecting the engine rotational speed each time a reference signal synchronized with the engine rotation is input;
An electronically controlled fuel for a multi-cylinder internal combustion engine, comprising: load detection means for detecting engine load; and first basic injection amount calculation means for calculating a basic injection amount immediately before starting injection based on the detected values of each of the detection means. In the injection device, a second basic injection amount calculation means calculates a basic injection amount when a reference signal is input based on the detection value of each of the detection means, and a second basic injection amount calculation means calculates a basic injection amount when a reference signal is input, and a second basic injection amount calculation means calculates a basic injection amount when the reference signal is input. The first judgment determines whether the injection control is sequential control, in which the fuel injection valves of each cylinder are operated individually at a rate of once, or simultaneous injection control, in which the fuel injection valves of all cylinders are operated at a rate of once per engine rotation. means, a second determining means for determining whether the sequential control or the simultaneous injection control is performed based on the basic injection amount immediately before the start of the injection, and when the first and second determining means determine that the sequential control is the sequential control, the injection starts. a first selection means for selecting the previous basic injection amount; and a first selection means for selecting the basic injection amount at the time of inputting the reference signal when the first judgment means judges sequential control and the second judgment means judges simultaneous injection control. a second selection means;
A fuel injection amount calculating means calculates the fuel injection amount by making various corrections to the selected basic injection amount, and sequential control is determined based on the basic injection amount when a reference signal is input based on the calculated fuel injection amount. and valve driving means for driving the fuel injection valve of the cylinder in order to supply the fuel injection amount of one combustion stroke in one injection to the cylinder determined to be under simultaneous injection control based on the basic injection amount immediately before the start of injection. An electronically controlled fuel injection device for a multi-cylinder internal combustion engine.