JPS57110742A - Engine speed controlling device - Google Patents

Engine speed controlling device

Info

Publication number
JPS57110742A
JPS57110742A JP18909780A JP18909780A JPS57110742A JP S57110742 A JPS57110742 A JP S57110742A JP 18909780 A JP18909780 A JP 18909780A JP 18909780 A JP18909780 A JP 18909780A JP S57110742 A JPS57110742 A JP S57110742A
Authority
JP
Japan
Prior art keywords
engine speed
controlling
aimed
controlled variable
upper limit
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
JP18909780A
Other languages
Japanese (ja)
Other versions
JPS6411815B2 (en
Inventor
Fujio Matsui
Mitsuo Nakamura
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.)
Subaru Corp
Original Assignee
Fuji Jukogyo KK
Fuji Heavy Industries 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 Fuji Jukogyo KK, Fuji Heavy Industries Ltd filed Critical Fuji Jukogyo KK
Priority to JP18909780A priority Critical patent/JPS57110742A/en
Publication of JPS57110742A publication Critical patent/JPS57110742A/en
Publication of JPS6411815B2 publication Critical patent/JPS6411815B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To enable to prevent over-controlling in a system for controlling the engine speed at the time of idling operation by way of closed loop control, by making the upper limit value of a controlled variable on the opposite sides of a blind zone of an aimed engine speed lower at the time of controlling the engine speed to the aimed vaue by increasing the same than that at the time of controlling the engine speed to the aimed value by lowering the same.
CONSTITUTION: Since a blind zone K is formed in a range involving an aimed engine speed, automatic speed control is not carried out in the above range, so that inadvertent operation is not caused. Further, a first and a second sampling period setting circuits 56, 57 have different gradients of their input-output characteristics and are designed to increase the controlled variable according to the deviation. Further, since upper limit values of a controlled variable raised according to the deviation are set for a first and a second limiter circuits 58, 59, an extraordinarily great controlled variable is avoided. The upper limit value for the first limiter circuit 58 used for engine speed decreasing control is selected to be higher than that of the second limiter circuit 59. Thus, it is enable to prevent over-controlling and to control the engine speed in a stable manner.
COPYRIGHT: (C)1982,JPO&Japio
JP18909780A 1980-12-26 1980-12-26 Engine speed controlling device Granted JPS57110742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18909780A JPS57110742A (en) 1980-12-26 1980-12-26 Engine speed controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18909780A JPS57110742A (en) 1980-12-26 1980-12-26 Engine speed controlling device

Publications (2)

Publication Number Publication Date
JPS57110742A true JPS57110742A (en) 1982-07-09
JPS6411815B2 JPS6411815B2 (en) 1989-02-27

Family

ID=16235289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18909780A Granted JPS57110742A (en) 1980-12-26 1980-12-26 Engine speed controlling device

Country Status (1)

Country Link
JP (1) JPS57110742A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047834A (en) * 1983-08-26 1985-03-15 Suzuki Motor Co Ltd Apparatus for controlling idling-operation control valve used in electronic fuel injection means
JPS61272441A (en) * 1985-05-28 1986-12-02 Mitsubishi Electric Corp Idle revolution speed controller for internal-combustion engine
JPS6255441A (en) * 1985-09-04 1987-03-11 Japanese National Railways<Jnr> Engine speed control device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476723A (en) * 1977-12-01 1979-06-19 Nissan Motor Co Ltd Device of controlling number of idling revolution of internal combustion engine
JPS55101740A (en) * 1979-01-26 1980-08-04 Nippon Denso Co Ltd Engine speed control method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476723A (en) * 1977-12-01 1979-06-19 Nissan Motor Co Ltd Device of controlling number of idling revolution of internal combustion engine
JPS55101740A (en) * 1979-01-26 1980-08-04 Nippon Denso Co Ltd Engine speed control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047834A (en) * 1983-08-26 1985-03-15 Suzuki Motor Co Ltd Apparatus for controlling idling-operation control valve used in electronic fuel injection means
JPH0214983B2 (en) * 1983-08-26 1990-04-10 Suzuki Motor Co
JPS61272441A (en) * 1985-05-28 1986-12-02 Mitsubishi Electric Corp Idle revolution speed controller for internal-combustion engine
JPH0454820B2 (en) * 1985-05-28 1992-09-01 Mitsubishi Electric Corp
JPS6255441A (en) * 1985-09-04 1987-03-11 Japanese National Railways<Jnr> Engine speed control device

Also Published As

Publication number Publication date
JPS6411815B2 (en) 1989-02-27

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