JPS5629155A - Control unit for air fuel ratio - Google Patents
Control unit for air fuel ratioInfo
- Publication number
- JPS5629155A JPS5629155A JP10501379A JP10501379A JPS5629155A JP S5629155 A JPS5629155 A JP S5629155A JP 10501379 A JP10501379 A JP 10501379A JP 10501379 A JP10501379 A JP 10501379A JP S5629155 A JPS5629155 A JP S5629155A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- value
- control
- fuel ratio
- air fuel
- 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)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
PURPOSE: To simplify the control, by flowing the current to the exhaust sensor at a given voltage and starting the closed loop control when the output voltage is more or less than the specified value.
CONSTITUTION: When the voltage V1 dividing the constant voltage Vc with the resist R1, R2 is applied to the exhaust sensor 15 represented with the internal resist R3 and a cell having electromotive force V2, taking the leakage current of the operational amplifier A1 as IA, the output voltage V0 at the terminal 18 is V0=R0V2/(R0+ R3)+R2V1/(R0+R3)+R0R3IA/(R0+R3). Taking the voltage VR, VL as the value V0 at the over concentrated and dilute states of mixed gas, VR is greater and VL is smaller with temperature rise. Accordingly, by determining the VR value VSR and the VL value VSL at the temperature which the closed loop control can be started, the control is started when V0 is more than VSR or less than VSL. Thus, with a simple operation, stable air fuel ratio control can be made.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10501379A JPS5629155A (en) | 1979-08-20 | 1979-08-20 | Control unit for air fuel ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10501379A JPS5629155A (en) | 1979-08-20 | 1979-08-20 | Control unit for air fuel ratio |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5629155A true JPS5629155A (en) | 1981-03-23 |
Family
ID=14396177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10501379A Pending JPS5629155A (en) | 1979-08-20 | 1979-08-20 | Control unit for air fuel ratio |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5629155A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007133130A (en) * | 2005-11-10 | 2007-05-31 | Kyocera Mita Corp | Grip device |
-
1979
- 1979-08-20 JP JP10501379A patent/JPS5629155A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007133130A (en) * | 2005-11-10 | 2007-05-31 | Kyocera Mita Corp | Grip device |
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