JPS55137334A - Air-fuel return controller for internal cumbustion engine - Google Patents
Air-fuel return controller for internal cumbustion engineInfo
- Publication number
- JPS55137334A JPS55137334A JP4301179A JP4301179A JPS55137334A JP S55137334 A JPS55137334 A JP S55137334A JP 4301179 A JP4301179 A JP 4301179A JP 4301179 A JP4301179 A JP 4301179A JP S55137334 A JPS55137334 A JP S55137334A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- resistance
- signal
- cpu4
- exhaust gas
- 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.)
- Granted
Links
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
PURPOSE: To correct the result operated at the digital computer to control air-fuel ratio at the expected value by providing the digital computer to operate fuel supplying rate and the exhaust gas sensor for oxygen condensation detecting in exhaust gas.
CONSTITUTION: As the O2 sensor signal processing circuit, the equivalent network of the O2 sensor 11 which is constituted of the inside resistance 111 and the inside electromotive force 112. The current flowing circuit 5 to the O2 sensor 11 is connected with the O2 sensor 11 and divide potential of the prescribed voltage +B by resistance. Output signal from the O2 sensor 11 is amplified at the signal amplifier 6 and output from said amplifier 6 is supplied to the interface 21 to be A/D-converted, and transfer the signal to CPU4. At the current flowing circuit 5, prescribed voltage +B is potentially divided by the resistance 51, 52 to flow electric current to the O2 sensor 11 through the resistance 53. CPU4 takes in O2 sensor output signal which is A/D-converted appropriately and affect return control operation by the program control.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4301179A JPS55137334A (en) | 1979-04-11 | 1979-04-11 | Air-fuel return controller for internal cumbustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4301179A JPS55137334A (en) | 1979-04-11 | 1979-04-11 | Air-fuel return controller for internal cumbustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55137334A true JPS55137334A (en) | 1980-10-27 |
JPS638293B2 JPS638293B2 (en) | 1988-02-22 |
Family
ID=12652035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4301179A Granted JPS55137334A (en) | 1979-04-11 | 1979-04-11 | Air-fuel return controller for internal cumbustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55137334A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5713245A (en) * | 1980-06-30 | 1982-01-23 | Toyota Motor Corp | Method of controlling air fuel ratio of internal combustion engine |
JPS58217733A (en) * | 1982-06-10 | 1983-12-17 | Matsushita Electric Ind Co Ltd | Fuel injection control method of internal-combustion method |
JPS6035148A (en) * | 1983-08-05 | 1985-02-22 | Nippon Denso Co Ltd | Air-fuel ratio control device |
JPS6045749A (en) * | 1983-08-22 | 1985-03-12 | Japan Electronic Control Syst Co Ltd | Air-fuel ratio learning controller of electronic fuel injection type internal-combustion engine |
US7236083B2 (en) | 2002-06-27 | 2007-06-26 | National Institute Of Advanced Industrial Science And Technology | Resistance type oxygen sensor and oxygen sensor device using it and air/fuel ratio control system |
US7578974B2 (en) | 2004-10-19 | 2009-08-25 | National Institute Of Advanced Industrial Science And Technology | Resistive type oxygen sensor and air/fuel ratio control system using it |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7438881B2 (en) | 2020-07-29 | 2024-02-27 | 株式会社トプコン | Leveling platform, surveying equipment and surveying system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5294929A (en) * | 1976-02-06 | 1977-08-10 | Nissan Motor Co Ltd | Digital system air-fuel ratio control device |
JPS52135925A (en) * | 1976-05-10 | 1977-11-14 | Nissan Motor Co Ltd | Air fuel ratio control equipment |
JPS5340133A (en) * | 1976-09-23 | 1978-04-12 | Nippon Denso Co Ltd | Fuel-air ratio feedback control system |
-
1979
- 1979-04-11 JP JP4301179A patent/JPS55137334A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5294929A (en) * | 1976-02-06 | 1977-08-10 | Nissan Motor Co Ltd | Digital system air-fuel ratio control device |
JPS52135925A (en) * | 1976-05-10 | 1977-11-14 | Nissan Motor Co Ltd | Air fuel ratio control equipment |
JPS5340133A (en) * | 1976-09-23 | 1978-04-12 | Nippon Denso Co Ltd | Fuel-air ratio feedback control system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5713245A (en) * | 1980-06-30 | 1982-01-23 | Toyota Motor Corp | Method of controlling air fuel ratio of internal combustion engine |
JPS6254980B2 (en) * | 1980-06-30 | 1987-11-17 | Toyota Motor Co Ltd | |
JPS58217733A (en) * | 1982-06-10 | 1983-12-17 | Matsushita Electric Ind Co Ltd | Fuel injection control method of internal-combustion method |
JPS6035148A (en) * | 1983-08-05 | 1985-02-22 | Nippon Denso Co Ltd | Air-fuel ratio control device |
JPS6045749A (en) * | 1983-08-22 | 1985-03-12 | Japan Electronic Control Syst Co Ltd | Air-fuel ratio learning controller of electronic fuel injection type internal-combustion engine |
US7236083B2 (en) | 2002-06-27 | 2007-06-26 | National Institute Of Advanced Industrial Science And Technology | Resistance type oxygen sensor and oxygen sensor device using it and air/fuel ratio control system |
US7578974B2 (en) | 2004-10-19 | 2009-08-25 | National Institute Of Advanced Industrial Science And Technology | Resistive type oxygen sensor and air/fuel ratio control system using it |
Also Published As
Publication number | Publication date |
---|---|
JPS638293B2 (en) | 1988-02-22 |
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