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JPS52102934A - Air-fuel ratio control system - Google Patents

Air-fuel ratio control system

Info

Publication number
JPS52102934A
JPS52102934A JP2043776A JP2043776A JPS52102934A JP S52102934 A JPS52102934 A JP S52102934A JP 2043776 A JP2043776 A JP 2043776A JP 2043776 A JP2043776 A JP 2043776A JP S52102934 A JPS52102934 A JP S52102934A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
system
ratio
fuel
air
control
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
JP2043776A
Inventor
Shigenori Isomura
Akira Masuda
Mitsuo Nakamura
Hideaki Norimatsu
Original Assignee
Nippon Denso 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

Links

Abstract

PURPOSE: In a system provide with an O2 sensor in the lower course than a 3dimentional catalyst of the exhaust system of an engine for controlling last combustion ratio to provide second O2 sensor in the lower course than the 3-dimentional catalyst for the accurate control of air-fuel ratio.
COPYRIGHT: (C)1977,JPO&Japio
JP2043776A 1976-02-25 1976-02-25 Air-fuel ratio control system Pending JPS52102934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2043776A JPS52102934A (en) 1976-02-25 1976-02-25 Air-fuel ratio control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2043776A JPS52102934A (en) 1976-02-25 1976-02-25 Air-fuel ratio control system

Publications (1)

Publication Number Publication Date
JPS52102934A true true JPS52102934A (en) 1977-08-29

Family

ID=12027007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2043776A Pending JPS52102934A (en) 1976-02-25 1976-02-25 Air-fuel ratio control system

Country Status (1)

Country Link
JP (1) JPS52102934A (en)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535181A (en) * 1978-09-05 1980-03-12 Nippon Denso Co Ltd Air fuel ratio control device
JPS5537562A (en) * 1978-09-08 1980-03-15 Nippon Denso Co Ltd Air-fuel ratio control system
JPS61178531A (en) * 1985-02-01 1986-08-11 Bosch Gmbh Robert Controller for internal combustion engine
JPS61185634A (en) * 1985-01-10 1986-08-19 Bosch Gmbh Robert Mixed gas control apparatus of internal combustion engine
JPS6251735A (en) * 1985-08-31 1987-03-06 Nippon Denso Co Ltd Air-fuel ratio control device
US4693076A (en) * 1985-04-09 1987-09-15 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4703619A (en) * 1985-04-09 1987-11-03 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4707984A (en) * 1985-04-15 1987-11-24 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4707985A (en) * 1985-09-12 1987-11-24 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4712373A (en) * 1985-04-12 1987-12-15 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4720973A (en) * 1985-02-23 1988-01-26 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having double-skip function
US4723408A (en) * 1985-09-10 1988-02-09 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4729219A (en) * 1985-04-03 1988-03-08 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4739614A (en) * 1985-02-22 1988-04-26 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system in internal combustion engine
US4745741A (en) * 1985-04-04 1988-05-24 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4747265A (en) * 1985-12-23 1988-05-31 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4750328A (en) * 1986-10-13 1988-06-14 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4761950A (en) * 1985-09-10 1988-08-09 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4779414A (en) * 1986-07-26 1988-10-25 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4796425A (en) * 1986-10-13 1989-01-10 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
JPS6453043A (en) * 1987-05-11 1989-03-01 Mitsubishi Motors Corp Air-fuel ratio controller for internal combustion engine
US4809501A (en) * 1987-01-16 1989-03-07 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4811557A (en) * 1986-10-13 1989-03-14 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4817383A (en) * 1986-11-08 1989-04-04 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4817384A (en) * 1986-08-13 1989-04-04 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4831838A (en) * 1985-07-31 1989-05-23 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4840027A (en) * 1986-10-13 1989-06-20 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4854124A (en) * 1987-07-10 1989-08-08 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having divided-skip function
US4881368A (en) * 1987-02-09 1989-11-21 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4905469A (en) * 1987-10-20 1990-03-06 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback system having improved activation determination for air-fuel ratio sensor
US4941318A (en) * 1988-03-01 1990-07-17 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system having short-circuit detection for air-fuel ratio sensor
US4964271A (en) * 1987-03-06 1990-10-23 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system including at least downstream-side air-fuel ratio sensor
US4964272A (en) * 1987-07-20 1990-10-23 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system including at least downstreamside air-fuel ratio sensor
US4970858A (en) * 1988-03-30 1990-11-20 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback system having improved activation determination for air-fuel ratio sensor
WO1991017349A1 (en) * 1990-05-07 1991-11-14 Japan Electronic Control Systems Co., Ltd. Method of controlling air-fuel ratio in internal combustion engine and system therefor
USRE33942E (en) * 1985-02-22 1992-06-02 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system in internal combustion engine
WO2016139899A1 (en) * 2015-03-03 2016-09-09 株式会社デンソー Exhaust purification device

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535181A (en) * 1978-09-05 1980-03-12 Nippon Denso Co Ltd Air fuel ratio control device
JPS5537562A (en) * 1978-09-08 1980-03-15 Nippon Denso Co Ltd Air-fuel ratio control system
JPS61185634A (en) * 1985-01-10 1986-08-19 Bosch Gmbh Robert Mixed gas control apparatus of internal combustion engine
JPS61178531A (en) * 1985-02-01 1986-08-11 Bosch Gmbh Robert Controller for internal combustion engine
US4739614A (en) * 1985-02-22 1988-04-26 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system in internal combustion engine
USRE33942E (en) * 1985-02-22 1992-06-02 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system in internal combustion engine
US4720973A (en) * 1985-02-23 1988-01-26 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having double-skip function
US4729219A (en) * 1985-04-03 1988-03-08 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4745741A (en) * 1985-04-04 1988-05-24 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4693076A (en) * 1985-04-09 1987-09-15 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4703619A (en) * 1985-04-09 1987-11-03 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4712373A (en) * 1985-04-12 1987-12-15 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4707984A (en) * 1985-04-15 1987-11-24 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
US4831838A (en) * 1985-07-31 1989-05-23 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
JPS6251735A (en) * 1985-08-31 1987-03-06 Nippon Denso Co Ltd Air-fuel ratio control device
US4723408A (en) * 1985-09-10 1988-02-09 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4761950A (en) * 1985-09-10 1988-08-09 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4707985A (en) * 1985-09-12 1987-11-24 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4747265A (en) * 1985-12-23 1988-05-31 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4819427A (en) * 1985-12-23 1989-04-11 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4779414A (en) * 1986-07-26 1988-10-25 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4817384A (en) * 1986-08-13 1989-04-04 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4840027A (en) * 1986-10-13 1989-06-20 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4811557A (en) * 1986-10-13 1989-03-14 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4750328A (en) * 1986-10-13 1988-06-14 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4796425A (en) * 1986-10-13 1989-01-10 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
US4817383A (en) * 1986-11-08 1989-04-04 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4809501A (en) * 1987-01-16 1989-03-07 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US4881368A (en) * 1987-02-09 1989-11-21 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved exhaust emission characteristics
US5022225A (en) * 1987-03-06 1991-06-11 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system including at least downstream-side air fuel ratio sensor
US4964271A (en) * 1987-03-06 1990-10-23 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system including at least downstream-side air-fuel ratio sensor
JPS6453043A (en) * 1987-05-11 1989-03-01 Mitsubishi Motors Corp Air-fuel ratio controller for internal combustion engine
US4854124A (en) * 1987-07-10 1989-08-08 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having divided-skip function
US4964272A (en) * 1987-07-20 1990-10-23 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system including at least downstreamside air-fuel ratio sensor
US4905469A (en) * 1987-10-20 1990-03-06 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback system having improved activation determination for air-fuel ratio sensor
US4941318A (en) * 1988-03-01 1990-07-17 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system having short-circuit detection for air-fuel ratio sensor
US4970858A (en) * 1988-03-30 1990-11-20 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback system having improved activation determination for air-fuel ratio sensor
WO1991017349A1 (en) * 1990-05-07 1991-11-14 Japan Electronic Control Systems Co., Ltd. Method of controlling air-fuel ratio in internal combustion engine and system therefor
WO2016139899A1 (en) * 2015-03-03 2016-09-09 株式会社デンソー Exhaust purification device

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