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JPS5629155A - Control unit for air fuel ratio - Google Patents

Control unit for air fuel ratio

Info

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
Application number
JP10501379A
Other languages
Japanese (ja)
Inventor
Shoji Furuhashi
Hideyuki Tamura
Toshio Enoshima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP10501379A priority Critical patent/JPS5629155A/en
Publication of JPS5629155A publication Critical patent/JPS5629155A/en
Pending legal-status Critical Current

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
JP10501379A 1979-08-20 1979-08-20 Control unit for air fuel ratio Pending JPS5629155A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007133130A (en) * 2005-11-10 2007-05-31 Kyocera Mita Corp Grip device

Cited By (1)

* Cited by examiner, † Cited by third party
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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