JPS57186039A - Control method of fuel at deceleration of engine - Google Patents

Control method of fuel at deceleration of engine

Info

Publication number
JPS57186039A
JPS57186039A JP7080181A JP7080181A JPS57186039A JP S57186039 A JPS57186039 A JP S57186039A JP 7080181 A JP7080181 A JP 7080181A JP 7080181 A JP7080181 A JP 7080181A JP S57186039 A JPS57186039 A JP S57186039A
Authority
JP
Japan
Prior art keywords
deceleration
under
condition
fuel
deltaqa
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
JP7080181A
Other languages
Japanese (ja)
Inventor
Matsuo Amano
Shinichi Sakamoto
Takeshi Hirayama
Takao Sasayama
Yasunori Mori
Yoshikazu Aochi
Takao Teranishi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7080181A priority Critical patent/JPS57186039A/en
Publication of JPS57186039A publication Critical patent/JPS57186039A/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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor

Abstract

PURPOSE:To suppress a generation amount of CO in fuel control through output of a hot-wire sensor, by stopping a time fuel feed, in accordance with a degree of deceleration, under the first deceleration condition with a large rate of deceleration and decreasing a feed quantity under the second deceleration condition. CONSTITUTION:A hot-wire sensor 24 is obtained with a suction air quantity in CPU through an AD converter 128 further obtained with a quantity DELTAQA at every prescribed time, if this value is positive, an engine is under a condition of acceleration, if negative, under a condition of deceleration, and the first, second and stable range are arranged from a larger value. Under the second deceleration condition, the duration time of deceleration correction is obtained from a leval of DELTAQA and water temperature 56, while under the first deceleration condition, the fuel cut off time is obtained in accordance with the water temperature 56 and a level of DELTAQA to set a register INJD134. Accordingly internal pressure in an intake manifold is decreased by deceleration and fuel ratio is increased by rapid vaporization of fuel adhering to an inner wall, as a result, an increase of generation of CO can be prevented.
JP7080181A 1981-05-13 1981-05-13 Control method of fuel at deceleration of engine Pending JPS57186039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7080181A JPS57186039A (en) 1981-05-13 1981-05-13 Control method of fuel at deceleration of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7080181A JPS57186039A (en) 1981-05-13 1981-05-13 Control method of fuel at deceleration of engine

Publications (1)

Publication Number Publication Date
JPS57186039A true JPS57186039A (en) 1982-11-16

Family

ID=13442007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7080181A Pending JPS57186039A (en) 1981-05-13 1981-05-13 Control method of fuel at deceleration of engine

Country Status (1)

Country Link
JP (1) JPS57186039A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862325A (en) * 1981-10-09 1983-04-13 Toyota Motor Corp Electronic control fuel-injection engine
JPS59103930A (en) * 1982-12-07 1984-06-15 Nippon Denso Co Ltd Control method of internal-combustion engine
JPS59200030A (en) * 1983-04-26 1984-11-13 Mazda Motor Corp Fuel controller for engine
JPS60166729A (en) * 1984-02-10 1985-08-30 Japan Electronic Control Syst Co Ltd Suction air flow enumerator in electronically controlled fuel injection device for internal- combustion engine
JPS6193247A (en) * 1984-10-15 1986-05-12 Honda Motor Co Ltd Accelerating fuel supply controlling method in internal-combustion engine
JPH0458035A (en) * 1990-06-27 1992-02-25 Mitsubishi Electric Corp Fuel control device for engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313025A (en) * 1976-07-22 1978-02-06 Toyota Motor Corp Fuel feed controller for internal combustion
JPS5618035A (en) * 1979-07-19 1981-02-20 Nissan Motor Co Ltd Fuel controller
JPS5618036A (en) * 1979-07-19 1981-02-20 Nissan Motor Co Ltd Fuel controller

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313025A (en) * 1976-07-22 1978-02-06 Toyota Motor Corp Fuel feed controller for internal combustion
JPS5618035A (en) * 1979-07-19 1981-02-20 Nissan Motor Co Ltd Fuel controller
JPS5618036A (en) * 1979-07-19 1981-02-20 Nissan Motor Co Ltd Fuel controller

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862325A (en) * 1981-10-09 1983-04-13 Toyota Motor Corp Electronic control fuel-injection engine
JPH0325622B2 (en) * 1981-10-09 1991-04-08 Toyota Motor Co Ltd
JPS59103930A (en) * 1982-12-07 1984-06-15 Nippon Denso Co Ltd Control method of internal-combustion engine
JPH0331908B2 (en) * 1982-12-07 1991-05-09 Nippon Denso Co
JPS59200030A (en) * 1983-04-26 1984-11-13 Mazda Motor Corp Fuel controller for engine
JPS60166729A (en) * 1984-02-10 1985-08-30 Japan Electronic Control Syst Co Ltd Suction air flow enumerator in electronically controlled fuel injection device for internal- combustion engine
JPS6193247A (en) * 1984-10-15 1986-05-12 Honda Motor Co Ltd Accelerating fuel supply controlling method in internal-combustion engine
JPH0458035A (en) * 1990-06-27 1992-02-25 Mitsubishi Electric Corp Fuel control device for engine

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