JPS5677527A - Method of and apparatus for controlling fuel injection to internal combustion engine - Google Patents
Method of and apparatus for controlling fuel injection to internal combustion engineInfo
- Publication number
- JPS5677527A JPS5677527A JP15740480A JP15740480A JPS5677527A JP S5677527 A JPS5677527 A JP S5677527A JP 15740480 A JP15740480 A JP 15740480A JP 15740480 A JP15740480 A JP 15740480A JP S5677527 A JPS5677527 A JP S5677527A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- fuel injection
- intake air
- 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
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To enable to supply an optimal amount of fuel to suit the operational condition of an engine, by detecting a signal corresponding to the quantity of intake air, and determining a factor for compensating the increment of fuel injetion rate from the changing rate of said signal in case that the signal is changed in a direction decreasing the quantity of intake air.
CONSTITUTION: In a control circuit 5 for calculating the quantity of intake fuel injection, wave forms of voltage applied to an ignition coil, impressed at a terminal 50, are shaped at 51, and it is frequency divided at 52 by a frequency dividing ratio related to the frequency of fuel injection per one rotation of an engine and converted into a pulse signal T0. In an arithmetic circuit 53, fuel injection rate is calculated from the signal T0 and an output voltage Vs of a means 4 for detecting the quantity of intake air, and a pulse signal T1 proportional to the quantity of intake air is produced. This signal T1 is corrected in a multiplying circuit 54 by a signal related to engine parameters and given as a pulse signal T3 to an OR circuit 56 via voltage compensating circuit 55. In the OR circuit 56, durations of pulse signals T1, T3 are added, and for this while, solenoid valves 6 are controlled via an output circuit 57.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15740480A JPS5677527A (en) | 1980-11-07 | 1980-11-07 | Method of and apparatus for controlling fuel injection to internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15740480A JPS5677527A (en) | 1980-11-07 | 1980-11-07 | Method of and apparatus for controlling fuel injection to internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5677527A true JPS5677527A (en) | 1981-06-25 |
Family
ID=15648885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15740480A Pending JPS5677527A (en) | 1980-11-07 | 1980-11-07 | Method of and apparatus for controlling fuel injection to internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5677527A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6371535A (en) * | 1986-09-12 | 1988-03-31 | Japan Electronic Control Syst Co Ltd | Electronic control type fuel injector for internal combustion engine |
US4843555A (en) * | 1984-12-28 | 1989-06-27 | Isuzu Motors Limited | Signal processing system for vehicular acceleration sensor |
JPH04166637A (en) * | 1990-10-30 | 1992-06-12 | Mitsubishi Electric Corp | Air-fuel ratio controller of engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5225932A (en) * | 1975-08-25 | 1977-02-26 | Nippon Denso Co Ltd | Electron control fuel injection device for internal combustion engine |
-
1980
- 1980-11-07 JP JP15740480A patent/JPS5677527A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5225932A (en) * | 1975-08-25 | 1977-02-26 | Nippon Denso Co Ltd | Electron control fuel injection device for internal combustion engine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4843555A (en) * | 1984-12-28 | 1989-06-27 | Isuzu Motors Limited | Signal processing system for vehicular acceleration sensor |
JPS6371535A (en) * | 1986-09-12 | 1988-03-31 | Japan Electronic Control Syst Co Ltd | Electronic control type fuel injector for internal combustion engine |
JPH04166637A (en) * | 1990-10-30 | 1992-06-12 | Mitsubishi Electric Corp | Air-fuel ratio controller of engine |
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