JPS57168031A - Back-up device for fuel injection timing control computor - Google Patents

Back-up device for fuel injection timing control computor

Info

Publication number
JPS57168031A
JPS57168031A JP5300481A JP5300481A JPS57168031A JP S57168031 A JPS57168031 A JP S57168031A JP 5300481 A JP5300481 A JP 5300481A JP 5300481 A JP5300481 A JP 5300481A JP S57168031 A JPS57168031 A JP S57168031A
Authority
JP
Japan
Prior art keywords
time
starting
output
time constant
flop
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
JP5300481A
Other languages
Japanese (ja)
Inventor
Tetsuo Nakajima
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP5300481A priority Critical patent/JPS57168031A/en
Publication of JPS57168031A publication Critical patent/JPS57168031A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting

Abstract

PURPOSE:To enable to start engine with necessary air fuel ratio by protracting the time constant of condensor charging in the device to change the signal to the fuel injector, from the output of the computer to the injection time arithmetic output parts, during the starter switch is closed. CONSTITUTION:After starting, or in the condition of starter switch SW is opened, the base of the transistor Tr2 is made ON by earthing it through the resistor R2, making the R1 short circuited and the time constant CR of the condenser C becomes smaller. The terminal voltage increases gradually with this CR and the comparator 23 is outputted when the voltage reaches V0 and the flip- flop 22 is resetted, and injection time control is performed. Then, when SW is closed at the time of starting, the transistor Tr2 is made off and the time constant is increased to CR+CR1, the increasing rate of the terminal voltage decreases, time H of the output Q of the flip-flop 22 becomes increased and enables to increase compensation at the time of starting.
JP5300481A 1981-04-10 1981-04-10 Back-up device for fuel injection timing control computor Pending JPS57168031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5300481A JPS57168031A (en) 1981-04-10 1981-04-10 Back-up device for fuel injection timing control computor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5300481A JPS57168031A (en) 1981-04-10 1981-04-10 Back-up device for fuel injection timing control computor

Publications (1)

Publication Number Publication Date
JPS57168031A true JPS57168031A (en) 1982-10-16

Family

ID=12930762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5300481A Pending JPS57168031A (en) 1981-04-10 1981-04-10 Back-up device for fuel injection timing control computor

Country Status (1)

Country Link
JP (1) JPS57168031A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188841U (en) * 1984-05-25 1985-12-14 本田技研工業株式会社 Backup device for electronic control device for fuel injection time control
WO2000022296A1 (en) * 1998-10-13 2000-04-20 Outboard Marine Corporation Start-assist circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188841U (en) * 1984-05-25 1985-12-14 本田技研工業株式会社 Backup device for electronic control device for fuel injection time control
JPH0311395Y2 (en) * 1984-05-25 1991-03-19
WO2000022296A1 (en) * 1998-10-13 2000-04-20 Outboard Marine Corporation Start-assist circuit

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