JPS6441638A - Air-fuel ratio control method for on-vehicle internal combustion engine - Google Patents
Air-fuel ratio control method for on-vehicle internal combustion engineInfo
- Publication number
- JPS6441638A JPS6441638A JP19932687A JP19932687A JPS6441638A JP S6441638 A JPS6441638 A JP S6441638A JP 19932687 A JP19932687 A JP 19932687A JP 19932687 A JP19932687 A JP 19932687A JP S6441638 A JPS6441638 A JP S6441638A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- engine
- auxiliary device
- vehicle auxiliary
- 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 stabilize the number of revolutions of an engine, by a method wherein, when a low car speed state is detected in the operating state of an on-vehicle auxiliary device, it is decided regardless of the opening of a throttle valve that an engine is in an idle running state, and a regulating amount per a unit time of a correction value of an air-fuel ratio is set to a low value. CONSTITUTION:A throttle valve 3 of a carburetor 1 is driven by a throttle opener 34. A 3-way solenoid valve 35 is situated in a negative pressure feed passage 34e through which the throttle opener 34 is communicated to a suction manifold 4 to form an idle up mechanism. In this case, detecting signals from various sensors 7, 10-14 and 16-18 to respectively detect the running state of an engine 5 and a detecting signal from a switch 19 for an on-vehicle auxiliary device, e.g. an air conditioner, are respectively inputted to a control circuit 20. When a low car speed state is detected under the operating state of the on-vehicle auxiliary device, a regulating amount per a unit time of a correction value of an air-fuel ratio is reduced regardless of the opening of the throttle valve 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19932687A JPS6441638A (en) | 1987-08-10 | 1987-08-10 | Air-fuel ratio control method for on-vehicle internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19932687A JPS6441638A (en) | 1987-08-10 | 1987-08-10 | Air-fuel ratio control method for on-vehicle internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6441638A true JPS6441638A (en) | 1989-02-13 |
Family
ID=16405936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19932687A Pending JPS6441638A (en) | 1987-08-10 | 1987-08-10 | Air-fuel ratio control method for on-vehicle internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6441638A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110217115A (en) * | 2019-06-25 | 2019-09-10 | 芜湖宏宇汽车电子有限责任公司 | A kind of automobile travel increasing apparatus and control method |
-
1987
- 1987-08-10 JP JP19932687A patent/JPS6441638A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110217115A (en) * | 2019-06-25 | 2019-09-10 | 芜湖宏宇汽车电子有限责任公司 | A kind of automobile travel increasing apparatus and control method |
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