JPS56159537A - Air to fuel ratio control device for internal-combustion engine - Google Patents
Air to fuel ratio control device for internal-combustion engineInfo
- Publication number
- JPS56159537A JPS56159537A JP6270480A JP6270480A JPS56159537A JP S56159537 A JPS56159537 A JP S56159537A JP 6270480 A JP6270480 A JP 6270480A JP 6270480 A JP6270480 A JP 6270480A JP S56159537 A JPS56159537 A JP S56159537A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- air
- engine
- control valve
- 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
- Means For Warming Up And Starting Carburetors (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To prevent a mixture from becoming too rich after the combustion of the engine is finished by a method wherein a necessary impressing voltage to a drive pulse generator for a solenoid control valve provided on an air bleed conduit is switched in accordance with the self-supported operation of the engine and the output of a temperature switch.
CONSTITUTION: The solenoid control valve 26 is provided in an air bleed passage 23 opening at the metering nozzle 22 of a carburettor 3 and the air to fuel ratio is controlled by controlling the valve 26 with an electronic control circuit 60 in accordance with the output of an exhaust sensor 8. Here, the electronic control circuit 60 is constituted with equipments such as an integral circuit integrating a deviation between the output of the exhaust sensor and the preset value therefor, a proportion circuit, an adding circuit, a function generating circuit 81 having a temperature sensitive element responding to an engine temperature and the like. The coil of the solenoid control valve 26 is driven and controlled by a method wherein the output voltage of the integral circuit or the function generating circuit is selected by controlling an analog switch properly unde opening or closing it with the outputs of an alternator as a detecting means of the self-supported operation and the temperature switch.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6270480A JPS56159537A (en) | 1980-05-14 | 1980-05-14 | Air to fuel ratio control device for internal-combustion engine |
| US06/237,949 US4341190A (en) | 1980-05-14 | 1981-02-25 | Air-fuel ratio control device of an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6270480A JPS56159537A (en) | 1980-05-14 | 1980-05-14 | Air to fuel ratio control device for internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56159537A true JPS56159537A (en) | 1981-12-08 |
Family
ID=13207958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6270480A Pending JPS56159537A (en) | 1980-05-14 | 1980-05-14 | Air to fuel ratio control device for internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56159537A (en) |
-
1980
- 1980-05-14 JP JP6270480A patent/JPS56159537A/en active Pending
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