JPS57137629A - Electronically controlled excess fuel accelerating device for single point injection internal combustion engine - Google Patents
Electronically controlled excess fuel accelerating device for single point injection internal combustion engineInfo
- Publication number
- JPS57137629A JPS57137629A JP2317281A JP2317281A JPS57137629A JP S57137629 A JPS57137629 A JP S57137629A JP 2317281 A JP2317281 A JP 2317281A JP 2317281 A JP2317281 A JP 2317281A JP S57137629 A JPS57137629 A JP S57137629A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel injection
- excess fuel
- internal combustion
- combustion engine
- 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
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
- F02D41/10—Introducing corrections for particular operating conditions for acceleration
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To prevent too little ratio of air-fuel in an engine and avoid deterioration of its emission or decrease of its operational performance, by performing the correction of excess fuel injection amount in accordance with a change rate of throttle valve opening when the internal combustion engine is accelerated. CONSTITUTION:A throttle opening thetath is fed to a peak hold circuit 4 through a differentiating circuit 2 and amplifier 3 to select a maximum value by dQth/dt. A basic fuel injection time signal Ti falls down, in the instant of tending to end fuel injection, Q output of a D-flip-flop 7 rises to ''1'' to continue fuel injection and perform excess fuel accelerating correction. Delay of actual excess fuel feeding amount on the basis of a large distance, from the fuel delivery output of an intake pipe to each fuel chamber, can be compensated, and deterioration of emission and decrease of operational performance caused by too little air-fuel ratio can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2317281A JPS57137629A (en) | 1981-02-20 | 1981-02-20 | Electronically controlled excess fuel accelerating device for single point injection internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2317281A JPS57137629A (en) | 1981-02-20 | 1981-02-20 | Electronically controlled excess fuel accelerating device for single point injection internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57137629A true JPS57137629A (en) | 1982-08-25 |
Family
ID=12103201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2317281A Pending JPS57137629A (en) | 1981-02-20 | 1981-02-20 | Electronically controlled excess fuel accelerating device for single point injection internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57137629A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2693765A1 (en) * | 1992-07-17 | 1994-01-21 | Bosch Gmbh Robert | Control system for the metering of fuel of an internal combustion engine. |
-
1981
- 1981-02-20 JP JP2317281A patent/JPS57137629A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2693765A1 (en) * | 1992-07-17 | 1994-01-21 | Bosch Gmbh Robert | Control system for the metering of fuel of an internal combustion engine. |
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