JPS5741439A - Controller for idle rotational frequency - Google Patents

Controller for idle rotational frequency

Info

Publication number
JPS5741439A
JPS5741439A JP11691980A JP11691980A JPS5741439A JP S5741439 A JPS5741439 A JP S5741439A JP 11691980 A JP11691980 A JP 11691980A JP 11691980 A JP11691980 A JP 11691980A JP S5741439 A JPS5741439 A JP S5741439A
Authority
JP
Japan
Prior art keywords
rotational frequency
actuator
idle rotational
throttle valve
throttle
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.)
Granted
Application number
JP11691980A
Other languages
Japanese (ja)
Other versions
JPS6324143B2 (en
Inventor
Toshio Manaka
Takeshi Atago
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 JP11691980A priority Critical patent/JPS5741439A/en
Publication of JPS5741439A publication Critical patent/JPS5741439A/en
Publication of JPS6324143B2 publication Critical patent/JPS6324143B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To converge reduction of rotational frequency of an engine into a target idle rotational frequency for a short time by enabling drive speed of a throttle valve actuator to be changed over.
CONSTITUTION: When rotational frequency of an engine 1 is reduced lower than a target idle rotational frequency, and return position of a throttle valve (not shown) in a carbureter 2 is detected to be released from control of a throttle actuator 7 by an idle detecting switch 11, a feed-back control for conrolling the idle rotational frequency with a control unit 12 is stopped. At the same time, an actuator 7 is driven with a predetermined speed in the direction of increasing the opening of the throttle valve until the return position of the valve is detected by a limit switch 6 to be controlled by the throttle actuator 7. Thus, when the rotational frequency is reduced, it can be rapidly restored to the target idle rotational frequency.
COPYRIGHT: (C)1982,JPO&Japio
JP11691980A 1980-08-27 1980-08-27 Controller for idle rotational frequency Granted JPS5741439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11691980A JPS5741439A (en) 1980-08-27 1980-08-27 Controller for idle rotational frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11691980A JPS5741439A (en) 1980-08-27 1980-08-27 Controller for idle rotational frequency

Publications (2)

Publication Number Publication Date
JPS5741439A true JPS5741439A (en) 1982-03-08
JPS6324143B2 JPS6324143B2 (en) 1988-05-19

Family

ID=14698906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11691980A Granted JPS5741439A (en) 1980-08-27 1980-08-27 Controller for idle rotational frequency

Country Status (1)

Country Link
JP (1) JPS5741439A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158334A (en) * 1983-02-28 1984-09-07 Japan Electronic Control Syst Co Ltd Idle speed controller of diesel engine
JPS6243153U (en) * 1985-09-05 1987-03-16

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5496628A (en) * 1978-01-17 1979-07-31 Aisin Seiki Co Ltd Controlling system of engine revolution
JPS54132019A (en) * 1978-04-03 1979-10-13 Nissan Motor Co Ltd Idling-revolutional-frequency variation preventive device
JPS5557639A (en) * 1978-10-23 1980-04-28 Gen Motors Corp Internal combustion engine for automobile
JPS5575547A (en) * 1978-11-30 1980-06-06 Nissan Motor Co Ltd Stole preventing device for engine
JPS55107034A (en) * 1979-02-09 1980-08-16 Nippon Denso Co Ltd Idling speed controller of engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5496628A (en) * 1978-01-17 1979-07-31 Aisin Seiki Co Ltd Controlling system of engine revolution
JPS54132019A (en) * 1978-04-03 1979-10-13 Nissan Motor Co Ltd Idling-revolutional-frequency variation preventive device
JPS5557639A (en) * 1978-10-23 1980-04-28 Gen Motors Corp Internal combustion engine for automobile
JPS5575547A (en) * 1978-11-30 1980-06-06 Nissan Motor Co Ltd Stole preventing device for engine
JPS55107034A (en) * 1979-02-09 1980-08-16 Nippon Denso Co Ltd Idling speed controller of engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158334A (en) * 1983-02-28 1984-09-07 Japan Electronic Control Syst Co Ltd Idle speed controller of diesel engine
JPH0245023B2 (en) * 1983-02-28 1990-10-08 Japan Electronic Control Syst
JPS6243153U (en) * 1985-09-05 1987-03-16

Also Published As

Publication number Publication date
JPS6324143B2 (en) 1988-05-19

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