JPS6360044U

JPS6360044U -

Info

Publication number: JPS6360044U
Application number: JP15244586U
Authority: JP
Priority date: 1986-10-06
Filing date: 1986-10-06
Publication date: 1988-04-21

Description

[Brief explanation of the drawing]

第１図は本考案の構成ブロツク図、第２図は本
考案の一実施例を示すシステム概略図、第３図は
同上実施例における燃料噴射量Ｔｉ設定制御を示
すフローチヤート、第４図は同上実施例における
制御領域を示すグラフ、第５図は熱線式流量計の
検出精度の低下傾向を示すグラフである。１……スロツトル弁開度センサ、２……熱線式
流量計、３……回転速度センサ、５……コントロ
ールユニツト、６……駆動回路、７……燃料噴射
弁。 Fig. 1 is a configuration block diagram of the present invention, Fig. 2 is a system schematic diagram showing an embodiment of the present invention, Fig. 3 is a flowchart showing fuel injection amount Ti setting control in the same embodiment, and Fig. 4 is a FIG. 5 is a graph showing the control region in the same embodiment as above, and FIG. 5 is a graph showing a tendency for the detection accuracy of the hot wire flowmeter to decrease. DESCRIPTION OF SYMBOLS 1...Throttle valve opening sensor, 2...Hot wire flow meter, 3...Rotational speed sensor, 5...Control unit, 6...Drive circuit, 7...Fuel injection valve.

Claims

[Scope of utility model registration request]

An intake air flow rate detection means for detecting the intake air flow rate of the engine, which includes a temperature sensitive resistor installed in the intake passage of the engine; an engine rotation speed detection means for detecting the rotation speed of the engine; Throttle valve opening detecting means for detecting the opening of the interposed throttle valve, and suction means that stores the intake air flow rate corresponding to each operating region with the throttle valve opening and engine rotational speed as parameters. air flow rate storage means; intake air flow rate search means for retrieving the intake air flow rate from the intake air flow rate storage means based on detected values of throttle valve opening and engine rotational speed; and engine load detection means for detecting the engine load. an intake air flow rate correction means for calculating a deviation between the intake air flow rate retrieved and the detected intake air flow rate in an engine load state of a predetermined or higher engine load state, and correcting the detected value of the intake air flow rate based on this deviation; In the above engine load state, the fuel injection amount is determined based on the corrected intake air flow rate and the detected engine rotation speed, and in the engine load state below the predetermined level, the fuel injection amount is determined based on the detected intake air flow rate and the detected engine rotation speed. An electronically controlled fuel injection device for an internal combustion engine, comprising: a fuel injection amount setting means for setting a fuel injection amount; and a fuel injection valve drive control means for driving and controlling a fuel injection valve according to the set fuel injection amount.