EP0005613A3 - Temperature circuit for oxygen sensor during warm-up - Google Patents

Temperature circuit for oxygen sensor during warm-up

Info

Publication number
EP0005613A3
EP0005613A3 EP79300803A EP79300803A EP0005613A3 EP 0005613 A3 EP0005613 A3 EP 0005613A3 EP 79300803 A EP79300803 A EP 79300803A EP 79300803 A EP79300803 A EP 79300803A EP 0005613 A3 EP0005613 A3 EP 0005613A3
Authority
EP
European Patent Office
Prior art keywords
oxygen sensor
during warm
engine
sensor during
temperature circuit
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.)
Withdrawn
Application number
EP79300803A
Other languages
German (de)
French (fr)
Other versions
EP0005613A2 (en
Inventor
Emile David Long
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.)
Allied Corp
Original Assignee
Allied Corp
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 Allied Corp filed Critical Allied Corp
Publication of EP0005613A2 publication Critical patent/EP0005613A2/en
Publication of EP0005613A3 publication Critical patent/EP0005613A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1479—Using a comparator with variable reference

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

A composite electronic circuit accurately controls air-fuel ratio in an engine having an electronically regulated fuel supply, such as an electronically regulated fuel injection system. The air-fuel ratio is measured by an oxygen sensor connected to the exhaust manifold. A circuit associated with the oxygen sensor compensates for variations in sensor output produced by temperature change during warm-up. After engine warm-up is completed, the circuit provides a voltage having a value independent of engine temperature.
EP79300803A 1978-05-15 1979-05-10 Temperature circuit for oxygen sensor during warm-up Withdrawn EP0005613A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90590578A 1978-05-15 1978-05-15
US905905 1978-05-15

Publications (2)

Publication Number Publication Date
EP0005613A2 EP0005613A2 (en) 1979-11-28
EP0005613A3 true EP0005613A3 (en) 1979-12-12

Family

ID=25421667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79300803A Withdrawn EP0005613A3 (en) 1978-05-15 1979-05-10 Temperature circuit for oxygen sensor during warm-up

Country Status (2)

Country Link
EP (1) EP0005613A3 (en)
JP (1) JPS54150520A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713493B2 (en) * 1983-08-24 1995-02-15 株式会社日立製作所 Air-fuel ratio controller for internal combustion engine
DE3941995A1 (en) * 1989-12-20 1991-06-27 Bosch Gmbh Robert METHOD AND DEVICE FOR MONITORING THE OPERATIONAL OPERATION OF A PROBE HEATING DEVICE
US5291673A (en) * 1992-12-21 1994-03-08 Ford Motor Company Oxygen sensor system with signal correction
US5505183A (en) * 1995-03-10 1996-04-09 Ford Motor Company Method and system for controlling emissions from an internal combustion engine
US9482189B2 (en) 2013-09-19 2016-11-01 Ford Global Technologies, Llc Methods and systems for an intake oxygen sensor
US9328684B2 (en) 2013-09-19 2016-05-03 Ford Global Technologies, Llc Methods and systems for an intake oxygen sensor
US9957906B2 (en) 2013-11-06 2018-05-01 Ford Gloabl Technologies, LLC Methods and systems for PCV flow estimation with an intake oxygen sensor
US9322367B2 (en) 2014-01-14 2016-04-26 Ford Global Technologies, Llc Methods and systems for fuel canister purge flow estimation with an intake oxygen sensor
US9441564B2 (en) * 2014-04-14 2016-09-13 Ford Global Technologies, Llc Methods and systems for adjusting EGR based on an impact of PCV hydrocarbons on an intake oxygen sensor
US9234476B2 (en) 2014-04-14 2016-01-12 Ford Global Technologies, Llc Methods and systems for determining a fuel concentration in engine oil using an intake oxygen sensor

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2035177A1 (en) * 1969-03-22 1970-12-18 Philips Nv
FR2135996A5 (en) * 1971-04-02 1972-12-22 Bosch Gmbh Robert
FR2163267A5 (en) * 1972-01-20 1973-07-20 Bendix Corp
FR2216016A1 (en) * 1973-01-31 1974-08-30 Bosch Gmbh Robert
DE2333743A1 (en) * 1973-07-03 1975-01-30 Bosch Gmbh Robert METHOD AND DEVICE FOR EXHAUST GAS DETOXIFICATION FROM INTERNAL COMBUSTION MACHINERY
FR2241071A1 (en) * 1973-08-16 1975-03-14 Bosch Gmbh Robert
GB1426569A (en) * 1973-05-02 1976-03-03 Jac Inc Temperature responsive device
FR2318315A1 (en) * 1975-07-14 1977-02-11 Bendix Corp AIR / FUEL RATIO NORMALIZATION CONTROL SYSTEM FOR CLOSED-LOOP FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE
DE2649606A1 (en) * 1975-11-01 1977-05-12 Nissan Motor Purification of exhaust gases using platinum-rhodium catalysts - with fuel-air ratio controlled by gas compsn.
DE2658613A1 (en) * 1975-12-25 1977-07-07 Nissan Motor CONTROL DEVICE FOR THE AIR-FUEL RATIO OF A MIXTURE SUPPLIED TO A COMBUSTION ENGINE
FR2346563A1 (en) * 1974-09-30 1977-10-28 Bendix Corp OPERATION DETECTION SYSTEM FOR GAS DETECTION PROBE

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2035177A1 (en) * 1969-03-22 1970-12-18 Philips Nv
FR2135996A5 (en) * 1971-04-02 1972-12-22 Bosch Gmbh Robert
FR2163267A5 (en) * 1972-01-20 1973-07-20 Bendix Corp
FR2216016A1 (en) * 1973-01-31 1974-08-30 Bosch Gmbh Robert
GB1426569A (en) * 1973-05-02 1976-03-03 Jac Inc Temperature responsive device
DE2333743A1 (en) * 1973-07-03 1975-01-30 Bosch Gmbh Robert METHOD AND DEVICE FOR EXHAUST GAS DETOXIFICATION FROM INTERNAL COMBUSTION MACHINERY
FR2241071A1 (en) * 1973-08-16 1975-03-14 Bosch Gmbh Robert
FR2346563A1 (en) * 1974-09-30 1977-10-28 Bendix Corp OPERATION DETECTION SYSTEM FOR GAS DETECTION PROBE
FR2318315A1 (en) * 1975-07-14 1977-02-11 Bendix Corp AIR / FUEL RATIO NORMALIZATION CONTROL SYSTEM FOR CLOSED-LOOP FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE
DE2649606A1 (en) * 1975-11-01 1977-05-12 Nissan Motor Purification of exhaust gases using platinum-rhodium catalysts - with fuel-air ratio controlled by gas compsn.
DE2658613A1 (en) * 1975-12-25 1977-07-07 Nissan Motor CONTROL DEVICE FOR THE AIR-FUEL RATIO OF A MIXTURE SUPPLIED TO A COMBUSTION ENGINE

Also Published As

Publication number Publication date
EP0005613A2 (en) 1979-11-28
JPS54150520A (en) 1979-11-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB IT SE

AK Designated contracting states

Designated state(s): DE FR GB IT SE

17P Request for examination filed
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALLIED CORPORATION

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19820408

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LONG, EMILE DAVID