JPS55137333A - Air-fuel ratio return control circuit - Google Patents
Air-fuel ratio return control circuitInfo
- Publication number
- JPS55137333A JPS55137333A JP4301079A JP4301079A JPS55137333A JP S55137333 A JPS55137333 A JP S55137333A JP 4301079 A JP4301079 A JP 4301079A JP 4301079 A JP4301079 A JP 4301079A JP S55137333 A JPS55137333 A JP S55137333A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- air
- sensor
- control
- control circuit
- 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.)
- Granted
Links
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To improve responsibility at the control starting time by adding the circuit to make the apparent impedance of the sensor at the control starting time small.
CONSTITUTION: Output from the suction air rate sensor 3 to detect air rate which passes through the suction pipe 2 of the engine 1 is supplied to the control circuit 4. The control circuit 4 operates the required fuel injection to send control signal to the fuel adjusting device 5 and supply required amount of fuel to the suction pipe from the fuel injection valve 6. For return control of the fuel supplying device, the deviation between the output from the O2 sensor 8 to detect oxygen condensation in exhaust gas in the exhaust pipe 7 and the standard value is detected at the deviation detecting circuit 9 to generate control signal from the control circuit 4 corresponding to the deviation, so that fuel rate output at the fuel adjusting device 5 is corrected based on the control signal. Being thus constituted, air-fuel ratio of mixed air supplied to the engine 1 is maintained at the expected air-fuel ratio. The resistance is connected to the O2 sensor 8 in parallel at the control starting time to make the apparent impedence of the exhaust sensor small.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4301079A JPS55137333A (en) | 1979-04-11 | 1979-04-11 | Air-fuel ratio return control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4301079A JPS55137333A (en) | 1979-04-11 | 1979-04-11 | Air-fuel ratio return control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55137333A true JPS55137333A (en) | 1980-10-27 |
JPS6213500B2 JPS6213500B2 (en) | 1987-03-26 |
Family
ID=12652008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4301079A Granted JPS55137333A (en) | 1979-04-11 | 1979-04-11 | Air-fuel ratio return control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55137333A (en) |
-
1979
- 1979-04-11 JP JP4301079A patent/JPS55137333A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6213500B2 (en) | 1987-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57143136A (en) | Method of controlling air fuel ratio of internal combustion engine | |
JPS562438A (en) | Mixing ratio controller for internal combustion engine | |
JPS57165656A (en) | Egr device of diesel engine | |
JPS55134731A (en) | Controlling method of air-fuel ratio | |
JPS5788250A (en) | Controller for air-fuel ratio of engine | |
JPS57104817A (en) | Air quantity measuring apparatus for internal combustion engine | |
EP0207796A3 (en) | Fuel control system for air-fuel mixture supply devices | |
JPS56126654A (en) | Electronic controlled carburetor | |
JPS55137333A (en) | Air-fuel ratio return control circuit | |
JPS55109733A (en) | Acceleration increasing-rate control method in electronically-controlled fuel injector | |
JPS5638538A (en) | Sensing method for adjusting condition of air-fuel ratio controller | |
JPS56129729A (en) | Electronically controlled fuel injection system | |
JPS54144525A (en) | Fuel-air ratio controller for internal combustion engine | |
JPS6424142A (en) | Control method for internal combustion engine | |
JPS55137334A (en) | Air-fuel return controller for internal cumbustion engine | |
JPS5776234A (en) | Control method for air fuel ratio of internal combustion engine | |
JPS5797038A (en) | Air-fuel ratio control apparatus | |
JPS54105610A (en) | Secondary air supplying device for engine exhaust system | |
JPS55134730A (en) | Controlling method of fuel for internal combustion engine | |
JPS56156433A (en) | Air/fuel ratio control device | |
JPS5332233A (en) | Exhaust gas re-circulation control means for electronically controlled fuel injection engine | |
JPS5614941A (en) | Fuel atomization rate measuring device for internal combustion engine | |
JPS5618044A (en) | Air-fuel ratio feedback control system for internal combustion engine | |
JPS566041A (en) | Air-fuel ratio controlling device | |
JPS5647649A (en) | Air-fuel mixture feeding apparatus for internal combustion engine |