JPS6429654A - Fuel injection controlling method - Google Patents

Fuel injection controlling method

Info

Publication number
JPS6429654A
JPS6429654A JP18601587A JP18601587A JPS6429654A JP S6429654 A JPS6429654 A JP S6429654A JP 18601587 A JP18601587 A JP 18601587A JP 18601587 A JP18601587 A JP 18601587A JP S6429654 A JPS6429654 A JP S6429654A
Authority
JP
Japan
Prior art keywords
solenoid valve
current
injection
pilot injection
microcomputer
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
JP18601587A
Other languages
Japanese (ja)
Inventor
Yasuhiro Toyoda
Shinichi Maeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP18601587A priority Critical patent/JPS6429654A/en
Publication of JPS6429654A publication Critical patent/JPS6429654A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To make both of main injection and pilot injection performable with a single solenoid valve by performing the pilot injection with the injection quantity metering solenoid valve, while lowering a current valve to the solenoid valve to the specified small one at the time of termination of the pilot injection. CONSTITUTION:A current-energizing control circuit 3 is installed between an injection quantity metering solenoid valve 16 of a distributor type fuel injection pump 1 and a microcomputer 20. And, both starting and ending periods of current-energization to the solenoid valve 16 are controlled each by the microcomputer 20, while a waveform of the energized current is controlled by current- energization control circuit 3. In addition, each detected signal out of various sensor, 22, 24, 26 detecting a driving state of an engine is inputted into the microcomputer 20. And, this time, pilot injection is carried out by the solenoid valve 16, while at the time of termination of the pilot injection, a current valve in cuurent-energization to the solenoid valve 16 is lowered to such one smaller than a closing holding current value of the solenoid valve 16 without bringing it into zero.
JP18601587A 1987-07-25 1987-07-25 Fuel injection controlling method Pending JPS6429654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18601587A JPS6429654A (en) 1987-07-25 1987-07-25 Fuel injection controlling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18601587A JPS6429654A (en) 1987-07-25 1987-07-25 Fuel injection controlling method

Publications (1)

Publication Number Publication Date
JPS6429654A true JPS6429654A (en) 1989-01-31

Family

ID=16180891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18601587A Pending JPS6429654A (en) 1987-07-25 1987-07-25 Fuel injection controlling method

Country Status (1)

Country Link
JP (1) JPS6429654A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387533U (en) * 1989-12-22 1991-09-05
JP2018080703A (en) * 2018-01-17 2018-05-24 株式会社デンソー Fuel injection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387533U (en) * 1989-12-22 1991-09-05
JP2018080703A (en) * 2018-01-17 2018-05-24 株式会社デンソー Fuel injection device

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