JPS54145818A - Air-fuel ratio control device - Google Patents
Air-fuel ratio control deviceInfo
- Publication number
- JPS54145818A JPS54145818A JP5359378A JP5359378A JPS54145818A JP S54145818 A JPS54145818 A JP S54145818A JP 5359378 A JP5359378 A JP 5359378A JP 5359378 A JP5359378 A JP 5359378A JP S54145818 A JPS54145818 A JP S54145818A
- Authority
- JP
- Japan
- Prior art keywords
- air
- electromagnetic valve
- ratio control
- fuel ratio
- sensor
- 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
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To control the quantity of air or fuel continuously and inexpensively and to enhance the precision of air-fuel ratio control by the use of electromagnetic valve.
CONSTITUTION: The air-fuel ratio control device is provided with the control circuit 10 which emits an airfuel ratio control signal as the output according to a signal of sensor 8 installed on between the lower flow of secondary air supply port 9 and the upper flow of threeelement catalyzer 6. Also the device is provided with the electromagnetic valve 13 which controls the quantity of secondary air continuously according to a control signal of the control circuit, the sensor 14 which detects the opening degree of electromagnetic valve 13, the comparator 130 which compares both outputs of said control circuit 10 (120) and the sensor 14 with each other, the integration circuit 140 which changes the integrating direction depending on the output of comparator and the amplifier circuit 150 which drives the electromagnetic valve 13.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5359378A JPS54145818A (en) | 1978-05-04 | 1978-05-04 | Air-fuel ratio control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5359378A JPS54145818A (en) | 1978-05-04 | 1978-05-04 | Air-fuel ratio control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54145818A true JPS54145818A (en) | 1979-11-14 |
Family
ID=12947166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5359378A Pending JPS54145818A (en) | 1978-05-04 | 1978-05-04 | Air-fuel ratio control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54145818A (en) |
-
1978
- 1978-05-04 JP JP5359378A patent/JPS54145818A/en active Pending
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