JPS60134842U - Drive current control device for electromagnetic fuel injection valves in internal combustion engines - Google Patents

Drive current control device for electromagnetic fuel injection valves in internal combustion engines

Info

Publication number
JPS60134842U
JPS60134842U JP2169984U JP2169984U JPS60134842U JP S60134842 U JPS60134842 U JP S60134842U JP 2169984 U JP2169984 U JP 2169984U JP 2169984 U JP2169984 U JP 2169984U JP S60134842 U JPS60134842 U JP S60134842U
Authority
JP
Japan
Prior art keywords
valve opening
fuel injection
current
valve
control device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2169984U
Other languages
Japanese (ja)
Inventor
石田　広一
Original Assignee
日本電子機器株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電子機器株式会社 filed Critical 日本電子機器株式会社
Priority to JP2169984U priority Critical patent/JPS60134842U/en
Publication of JPS60134842U publication Critical patent/JPS60134842U/en
Pending legal-status Critical Current

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  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は燃料噴射弁駆動電流制御装置の従来例を示す回
路図、第２図は第１図の各部の信号波形図、第３図は本
考案の一実施例を示す回路図、第４図は第３図の各部の
信号波形図である。 １・・・ソレノイド、２・・・駆動用トランジスタ、８
・・・開弁電流用比較器、９・・・保持電流用比較器、
２０・・・基準電圧用トランジスタ、２１・・・第１の
放電用トランジスタ、２２・・・第２の放電用トランジ
スタ、２４・・・フリップフロップ、２７・・・コンデ
ンサ、２８・・・開弁電流通電用比較器、２９・・・開
弁電流検出用トランジスタ。FIG. 1 is a circuit diagram showing a conventional example of a fuel injection valve drive current control device, FIG. 2 is a signal waveform diagram of each part of FIG. 1, FIG. 3 is a circuit diagram showing an embodiment of the present invention, and FIG. The figure is a signal waveform diagram of each part in FIG. 3. 1...Solenoid, 2...Drive transistor, 8
... Comparator for valve opening current, 9... Comparator for holding current,
20... Reference voltage transistor, 21... First discharge transistor, 22... Second discharge transistor, 24... Flip-flop, 27... Capacitor, 28... Valve opening Comparator for current energization, 29... transistor for detecting valve opening current.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電源に接続された電磁式燃料噴射弁のソレノイドに開弁
初期に開弁電流を通電した後これに連続して前記開弁電
流より小さな開弁状態を保持するための保持電流を通電
する電磁式燃料噴射弁の駆動電流制御装置において、前
記ソレノイドを流れる電流が前記開弁電流値に立上った
ときを検出する開弁電流検出手段と、該開弁電流検出手
段か４検出信号が入力された時点からの開弁電流の通電
時間を制御する制御手段と、を設けたことを特徴とする
内燃機関における電磁式燃料噴射弁の駆動電流制御装置
。An electromagnetic type that applies a valve opening current to the solenoid of an electromagnetic fuel injection valve connected to a power source at the initial stage of valve opening, and then continuously applies a holding current to maintain the valve in an open state smaller than the valve opening current. In the drive current control device for a fuel injection valve, a valve opening current detecting means for detecting when the current flowing through the solenoid rises to the valve opening current value, and a detection signal from the valve opening current detecting means are inputted. 1. A drive current control device for an electromagnetic fuel injection valve in an internal combustion engine, comprising: control means for controlling the energization time of a valve opening current from a point in time when the valve opens.
JP2169984U 1984-02-20 1984-02-20 Drive current control device for electromagnetic fuel injection valves in internal combustion engines Pending JPS60134842U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2169984U JPS60134842U (en) 1984-02-20 1984-02-20 Drive current control device for electromagnetic fuel injection valves in internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2169984U JPS60134842U (en) 1984-02-20 1984-02-20 Drive current control device for electromagnetic fuel injection valves in internal combustion engines

Publications (1)

Publication Number Publication Date
JPS60134842U true JPS60134842U (en) 1985-09-07

Family

ID=30513329

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2169984U Pending JPS60134842U (en) 1984-02-20 1984-02-20 Drive current control device for electromagnetic fuel injection valves in internal combustion engines

Country Status (1)

Country Link
JP (1) JPS60134842U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101856A (en) * 1985-10-30 1987-05-12 Suzuki Motor Co Ltd Fuel injection control device
JPH04287850A (en) * 1991-03-18 1992-10-13 Kokusan Denki Co Ltd Solenoid type fuel injection valve driving method and drive unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211538A (en) * 1982-06-03 1983-12-09 Aisan Ind Co Ltd Drive method for electromagnetic fuel injector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211538A (en) * 1982-06-03 1983-12-09 Aisan Ind Co Ltd Drive method for electromagnetic fuel injector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101856A (en) * 1985-10-30 1987-05-12 Suzuki Motor Co Ltd Fuel injection control device
JPH04287850A (en) * 1991-03-18 1992-10-13 Kokusan Denki Co Ltd Solenoid type fuel injection valve driving method and drive unit

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