JPS57126527A - Air fuel ratio control and device thereof for multi- cylinder internal combustion engine - Google Patents

Air fuel ratio control and device thereof for multi- cylinder internal combustion engine

Info

Publication number
JPS57126527A
JPS57126527A JP56010102A JP1010281A JPS57126527A JP S57126527 A JPS57126527 A JP S57126527A JP 56010102 A JP56010102 A JP 56010102A JP 1010281 A JP1010281 A JP 1010281A JP S57126527 A JPS57126527 A JP S57126527A
Authority
JP
Japan
Prior art keywords
fuel ratio
air fuel
combustion engine
internal combustion
gas sensor
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
JP56010102A
Other languages
Japanese (ja)
Inventor
Hiroshi Yamaguchi
Akio Hosaka
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 JP56010102A priority Critical patent/JPS57126527A/en
Publication of JPS57126527A publication Critical patent/JPS57126527A/en
Pending 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2454—Learning of the air-fuel ratio control

Landscapes

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

Abstract

PURPOSE:To improve the exhaust system efficiency or operativeness of an internal combustion engine and to reduce the fuel cost by detecting the air fuel ratio for each cylinder according to the variation in the output signal from exhaust gas sensor, and thus controlling the fuel injection valve for each cylinder. CONSTITUTION:To control fuel injection valves 70-73 individually accoding to the variation in the output signal from exhaust gas sensor 1. The air fuel ratio correction sign 1 from the exhaust gas sensor 1 is converted to a new air fuel ratio correction signal in operation circuit 5 with signals from airflow meter 2 and revolution rate detector 3, and the signal is stored in memories 10-13. The times for opening and closing the fuel injection valves 70-73 are controlled individually by the injection valve drive circuits 100-103. Thus, the air fuel ratio for each cylinder is regulated individually. Therefore, exhaust system efficiency and operativeness can be improved and fuel consumption can be reduced.
JP56010102A 1981-01-28 1981-01-28 Air fuel ratio control and device thereof for multi- cylinder internal combustion engine Pending JPS57126527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56010102A JPS57126527A (en) 1981-01-28 1981-01-28 Air fuel ratio control and device thereof for multi- cylinder internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56010102A JPS57126527A (en) 1981-01-28 1981-01-28 Air fuel ratio control and device thereof for multi- cylinder internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57126527A true JPS57126527A (en) 1982-08-06

Family

ID=11740948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56010102A Pending JPS57126527A (en) 1981-01-28 1981-01-28 Air fuel ratio control and device thereof for multi- cylinder internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57126527A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990014514A1 (en) * 1989-05-15 1990-11-29 Japan Electronic Control Systems Co., Ltd. Error detection device for each cylinder in fuel supply control device for internal combustion engine, learning device for each cylinder and diagnostic device for each cylinder
CN110792494A (en) * 2018-08-03 2020-02-14 罗伯特·博世有限公司 Metering system for a liquid reducing agent and method for operating at least two metering valves of a hydraulic system
JP2020133533A (en) * 2019-02-21 2020-08-31 トヨタ自動車株式会社 Imbalance detection device, imbalance detection system, data analysis device and control device of internal combustion engine
US10969304B2 (en) 2019-02-15 2021-04-06 Toyota Jidosha Kabushiki Kaisha State detection system for internal combustion engine, data analysis device, and vehicle
US11255282B2 (en) 2019-02-15 2022-02-22 Toyota Jidosha Kabushiki Kaisha State detection system for internal combustion engine, data analysis device, and vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52132223A (en) * 1976-04-30 1977-11-05 Nissan Motor Co Ltd Mixed gas controlling apparatus
JPS57102529A (en) * 1980-12-16 1982-06-25 Nippon Denso Co Ltd Air-fuel ratio controlling method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52132223A (en) * 1976-04-30 1977-11-05 Nissan Motor Co Ltd Mixed gas controlling apparatus
JPS57102529A (en) * 1980-12-16 1982-06-25 Nippon Denso Co Ltd Air-fuel ratio controlling method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990014514A1 (en) * 1989-05-15 1990-11-29 Japan Electronic Control Systems Co., Ltd. Error detection device for each cylinder in fuel supply control device for internal combustion engine, learning device for each cylinder and diagnostic device for each cylinder
US5131372A (en) * 1989-05-15 1992-07-21 Japan Electronic Control Systems Co., Ltd. Apparatus for controlling the respective cylinders in the fuel supply system of an internal combustion engine
CN110792494A (en) * 2018-08-03 2020-02-14 罗伯特·博世有限公司 Metering system for a liquid reducing agent and method for operating at least two metering valves of a hydraulic system
CN110792494B (en) * 2018-08-03 2023-11-17 罗伯特·博世有限公司 Dosing system for a liquid reducing agent and method for operating at least two dosing valves of a hydraulic system
US10969304B2 (en) 2019-02-15 2021-04-06 Toyota Jidosha Kabushiki Kaisha State detection system for internal combustion engine, data analysis device, and vehicle
US11255282B2 (en) 2019-02-15 2022-02-22 Toyota Jidosha Kabushiki Kaisha State detection system for internal combustion engine, data analysis device, and vehicle
JP2020133533A (en) * 2019-02-21 2020-08-31 トヨタ自動車株式会社 Imbalance detection device, imbalance detection system, data analysis device and control device of internal combustion engine
US11225924B2 (en) 2019-02-21 2022-01-18 Toyota Jidosha Kabushiki Kaisha Imbalance detection device, imbalance detection system, data analysis device, and controller for internal combustion engine

Similar Documents

Publication Publication Date Title
JPS5449421A (en) Controlling of run of internal combustion engine
GB1469390A (en) Internal combustion engine exhaust systems
JPS5596350A (en) Method of controlling internal combustion engine in terms of numerous variables
JPS57143136A (en) Method of controlling air fuel ratio of internal combustion engine
ES469542A1 (en) Fuel control systems for internal combustion engines
KR850007634A (en) Engine control device and control method
JPS5749052A (en) Purifying device of exhaust gas in fuel injection type engine
JPS55123334A (en) Engine capable of changing number of operative cylinders
GB2012000A (en) Electronically controlled exhaust gas recirculation system in internal combustion engine
JPS5620720A (en) Supercharger for internal combustion engine
JPS57126527A (en) Air fuel ratio control and device thereof for multi- cylinder internal combustion engine
JPS5759039A (en) Working condition display process in internal combustion engine
JPS5732059A (en) Pressure detector for controlling internal combustion engine
JPS57119152A (en) Air-fuel ratio control device
US4361124A (en) System for controlling air-fuel ratio
JPS6466427A (en) Fuel supply control device for internal combustion engine
JPS57108413A (en) Turbocharger controller
JPS57210157A (en) Egr control method of diesel engine
JPS56159527A (en) Electronic control type fuel injection controller for internal-combustion engine
JPS5718453A (en) Ignition timing control method for internal combustion engine
JPS551441A (en) Fuel controller
FR2420659A1 (en) Diesel engine exhaust control - uses speed and accelerator pedal position sensors to operate recycling valve
JPS56104131A (en) Internal combustion engine control device
JPS5332233A (en) Exhaust gas re-circulation control means for electronically controlled fuel injection engine
JPS56148656A (en) Exhaust gas recirculation control method for internal combustion engine