JPS5654935A - Air-fuel ratio controller - Google Patents
Air-fuel ratio controllerInfo
- Publication number
- JPS5654935A JPS5654935A JP13060379A JP13060379A JPS5654935A JP S5654935 A JPS5654935 A JP S5654935A JP 13060379 A JP13060379 A JP 13060379A JP 13060379 A JP13060379 A JP 13060379A JP S5654935 A JPS5654935 A JP S5654935A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- sensor
- period
- ratio control
- 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
- Testing Or Calibration Of Command Recording Devices (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To accurately perform air-fuel ratio control at its resumption, by selecting an air-fuel ratio set signal, which corresponds to the concentration of oxygen within the period of the inaccuracy of the output of a sensor, instead of the output signal of the sensor throughout the period.
CONSTITUTION: In normal running, the output signal of a sensor is supplied to an air-fuel ratio control means 24 through a switch 22. At the time of shifting from full- opening acceleration, in which the concentration of oxygen near an inner platinum electrode in the sensor becomes lower than a reference level, to slow acceleration which does not include a fuel-cut state in which air-fuel ratio control is resumed, the contact of the switch 22 is changed over in accordance with a signal from a running condition detector means 21 so that the air-fuel ratio set signal of an oscillator 23 corresponding to the concentration of oxygen within the period of inaccuracy of the output of the sensor is applied to the air fuel ratio control means 24 instead of the output signal of the sensor throughout the period. The air-fuel ratio is thus accurately controlled.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13060379A JPS5654935A (en) | 1979-10-09 | 1979-10-09 | Air-fuel ratio controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13060379A JPS5654935A (en) | 1979-10-09 | 1979-10-09 | Air-fuel ratio controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5654935A true JPS5654935A (en) | 1981-05-15 |
Family
ID=15038154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13060379A Pending JPS5654935A (en) | 1979-10-09 | 1979-10-09 | Air-fuel ratio controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654935A (en) |
-
1979
- 1979-10-09 JP JP13060379A patent/JPS5654935A/en active Pending
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