JPS56137146A - Controller for air-to-fuel ratio - Google Patents

Controller for air-to-fuel ratio

Info

Publication number
JPS56137146A
JPS56137146A JP3983780A JP3983780A JPS56137146A JP S56137146 A JPS56137146 A JP S56137146A JP 3983780 A JP3983780 A JP 3983780A JP 3983780 A JP3983780 A JP 3983780A JP S56137146 A JPS56137146 A JP S56137146A
Authority
JP
Japan
Prior art keywords
fuel ratio
air
oxygen sensor
heater
oxygen
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
JP3983780A
Other languages
Japanese (ja)
Inventor
Kimitake Sone
Yoshitaka Kitagasaki
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 JP3983780A priority Critical patent/JPS56137146A/en
Publication of JPS56137146A publication Critical patent/JPS56137146A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/4065—Circuit arrangements specially adapted therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

PURPOSE:To perform air-to-fuel ratio feedback control or open loop control, and to obtain excellent operating performance, by providing the means which detects indirectly the temperature of the oxygen sensor from the resistance of the oxygen sensor heater. CONSTITUTION:The oxygen sensor heater 13 consisting of the sensor temperature rise platinum wire heater is provided between the upper aluminum base 11 and the lower aluminum 12, and the reference oxygen electrode 14, solid electrolyte 15, discharge gas side platinum electrode 16 as the oxygen sensor main body are constituted in layer on the upper part of the upper aluminum base 11. Further, the resistance value of the oxygen heater 13 at the cold start is detected and when the oxygen sensor reaches a high temperature sufficiently to be operated, the open loop control of air-to-fuel ratio is released and the air-to-fuel ratio control of the closed loop can be started. Thus, the air-to-fuel ratio control can be made immediately after the oxygen sensor reaches a temperature possible to detect the air-to-fuel ratio, allowing to clean the vent.
JP3983780A 1980-03-28 1980-03-28 Controller for air-to-fuel ratio Pending JPS56137146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3983780A JPS56137146A (en) 1980-03-28 1980-03-28 Controller for air-to-fuel ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3983780A JPS56137146A (en) 1980-03-28 1980-03-28 Controller for air-to-fuel ratio

Publications (1)

Publication Number Publication Date
JPS56137146A true JPS56137146A (en) 1981-10-26

Family

ID=12564070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3983780A Pending JPS56137146A (en) 1980-03-28 1980-03-28 Controller for air-to-fuel ratio

Country Status (1)

Country Link
JP (1) JPS56137146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3444597A4 (en) * 2016-04-15 2020-01-01 Institute of Process Engineering, Chinese Academy of Sciences Alarm circuit of gas-sensitive sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3444597A4 (en) * 2016-04-15 2020-01-01 Institute of Process Engineering, Chinese Academy of Sciences Alarm circuit of gas-sensitive sensor

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