JPS60139051U

JPS60139051U - Internal combustion engine fuel supply system

Info

Publication number: JPS60139051U
Application number: JP2664284U
Authority: JP
Inventors: 植松　栄司
Original assignee: 日本電子機器株式会社
Priority date: 1984-02-28
Filing date: 1984-02-28
Publication date: 1985-09-13

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ａ、　ｂはそれぞれ従来の電子制御燃料供給装置
を有する内燃機関の燃料りカバー及びエンストの説明図
、第２図は本考案による工：ノスト防止動作を示すため
の回転速度変化特性図、第３図は本考案の一実施例の構
成を示すブロック図、第４図は第３図の実施例の動作を
示すフローチャー　−トである。１・・・回転速度信号発生器、２・・・第１回転速度判
定回路、３・・・第２回転速度判定回路、４・・・回転
速度変動検出器、６・・・出力回路、７・・・アイドル
スイッチ。 □□Figures 1a and b are explanatory diagrams of the fuel cover and engine stall of an internal combustion engine having a conventional electronically controlled fuel supply system, respectively, and Figure 2 is a rotational speed change characteristic diagram to show the nost prevention operation of the present invention. 3 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 4 is a flowchart showing the operation of the embodiment of FIG. DESCRIPTION OF SYMBOLS 1... Rotation speed signal generator, 2... First rotation speed determination circuit, 3... Second rotation speed determination circuit, 4... Rotation speed fluctuation detector, 6... Output circuit, 7 ...Idle switch. □□

Claims

[Scope of utility model registration request]

A means for detecting a fully closed state of an intake throttle valve installed in an intake passage, a means for detecting an engine rotation speed, and when the engine rotation speed when the intake throttle valve is fully closed exceeds a first set value. means for stopping fuel supply to the engine when the engine rotational speed becomes equal to or less than a second set value, which is set smaller than the first thermal constant value during the fuel supply stop period by the means; In a fuel supply system for an internal combustion engine, the engine rotational speed has become equal to or lower than a third set value set to an intermediate value between the first and second set values. means for detecting a fluctuation rate of the engine rotational speed, and a means for detecting a fluctuation rate of the engine rotational speed, and a means for detecting a rate of variation of the engine rotational speed, and a means for detecting a change in the engine rotational speed when the engine rotational speed is equal to or less than a third setting value and a decrease in the engine rotational speed by these two detection means during the fuel co-feeding stop period. 1. A fuel supply device for an internal combustion engine, comprising means for canceling a fuel supply stop when it is detected that the rate is equal to or higher than a predetermined value.