JPS56141036A - Engine control device - Google Patents

Engine control device

Info

Publication number
JPS56141036A
JPS56141036A JP4461180A JP4461180A JPS56141036A JP S56141036 A JPS56141036 A JP S56141036A JP 4461180 A JP4461180 A JP 4461180A JP 4461180 A JP4461180 A JP 4461180A JP S56141036 A JPS56141036 A JP S56141036A
Authority
JP
Japan
Prior art keywords
engine
value
control
actuator
discontinued
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
JP4461180A
Other languages
Japanese (ja)
Other versions
JPS638303B2 (en
Inventor
Takeshi Atago
Toshio Manaka
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 JP4461180A priority Critical patent/JPS56141036A/en
Publication of JPS56141036A publication Critical patent/JPS56141036A/en
Publication of JPS638303B2 publication Critical patent/JPS638303B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain secures safe engine control by a method wherein R.P.M. of the engine is compared with the R.P.M. set up by the engine running state and if the value resulted from the comparison exceeds a predetermined value and said state continues for a set period of time, the engine R.P.M. control operation is discontinued.
CONSTITUTION: The R.P.M. of an engine 5 is detected at an engine R.P.M. detector 6, the detected output is supplied to a set-up circuit 7 of the engine R.P.M., where the applied value is compared with the reference value which is set-up based on the engine running state. The signal resulted from the comparison is inputted to a R.P.M. operator 8, and if the inputted signal value exceeds the reference value and the excessive value continues for a certain duration predetermined, then an actuator 9 stops the control of R.P.M. While the R.P.M. control is discontinued, A/F operator 3 and A/F actuator 4 make actions to vary the air-to-oil ratio to thinner side thereof. In such a way, even if the R.P.M. actuator 9 causes trouble, a safe engine control can be assured for operation.
COPYRIGHT: (C)1981,JPO&Japio
JP4461180A 1980-04-07 1980-04-07 Engine control device Granted JPS56141036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4461180A JPS56141036A (en) 1980-04-07 1980-04-07 Engine control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4461180A JPS56141036A (en) 1980-04-07 1980-04-07 Engine control device

Publications (2)

Publication Number Publication Date
JPS56141036A true JPS56141036A (en) 1981-11-04
JPS638303B2 JPS638303B2 (en) 1988-02-22

Family

ID=12696230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4461180A Granted JPS56141036A (en) 1980-04-07 1980-04-07 Engine control device

Country Status (1)

Country Link
JP (1) JPS56141036A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716231A (en) * 1980-07-04 1982-01-27 Nissan Motor Co Ltd Safety device for engine controller
JPS57110739A (en) * 1980-12-27 1982-07-09 Fuji Heavy Ind Ltd Apparatus for detecting runaway of apparatus for controlling rotational frequency of engine
JPS58176434A (en) * 1982-04-09 1983-10-15 Toyota Motor Corp Idle rotation speed control method
JPS59162336A (en) * 1983-03-07 1984-09-13 Daihatsu Motor Co Ltd Violent running preventive device of engine idle
JPS59168246A (en) * 1983-03-15 1984-09-21 Suzuki Motor Co Ltd Abnormality detector for electronically controlled type engine
JPS59185847A (en) * 1983-04-05 1984-10-22 Yamaha Motor Co Ltd Operation state surveying apparatus for internal-combustion engine
JPS603447A (en) * 1983-06-22 1985-01-09 Honda Motor Co Ltd Method of controlling idling speed at defective time of revolving angular position measuring system of internal-combustion engine
JPS6054747U (en) * 1983-09-20 1985-04-17 日本電子機器株式会社 Internal combustion engine idle speed control device
JPS60119337A (en) * 1983-11-30 1985-06-26 Aisan Ind Co Ltd Controlling method of engine idling speed
JPS60125336U (en) * 1984-02-01 1985-08-23 トヨタ自動車株式会社 Diesel engine fuel injection system
JPS6163448U (en) * 1984-10-01 1986-04-30
JPS6165257U (en) * 1984-10-02 1986-05-02
JPS6293455A (en) * 1985-10-21 1987-04-28 Hitachi Ltd Idling speed controller
JPS62171639U (en) * 1986-04-22 1987-10-30

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5281436A (en) * 1975-12-27 1977-07-07 Nissan Motor Co Ltd Air fuel ratio controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5281436A (en) * 1975-12-27 1977-07-07 Nissan Motor Co Ltd Air fuel ratio controller

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716231A (en) * 1980-07-04 1982-01-27 Nissan Motor Co Ltd Safety device for engine controller
JPS57110739A (en) * 1980-12-27 1982-07-09 Fuji Heavy Ind Ltd Apparatus for detecting runaway of apparatus for controlling rotational frequency of engine
JPH0350099B2 (en) * 1982-04-09 1991-07-31 Toyota Motor Co Ltd
JPS58176434A (en) * 1982-04-09 1983-10-15 Toyota Motor Corp Idle rotation speed control method
JPS59162336A (en) * 1983-03-07 1984-09-13 Daihatsu Motor Co Ltd Violent running preventive device of engine idle
JPH0373738B2 (en) * 1983-03-07 1991-11-22 Daihatsu Motor Co Ltd
JPS59168246A (en) * 1983-03-15 1984-09-21 Suzuki Motor Co Ltd Abnormality detector for electronically controlled type engine
JPS59185847A (en) * 1983-04-05 1984-10-22 Yamaha Motor Co Ltd Operation state surveying apparatus for internal-combustion engine
JPS603447A (en) * 1983-06-22 1985-01-09 Honda Motor Co Ltd Method of controlling idling speed at defective time of revolving angular position measuring system of internal-combustion engine
JPS6054747U (en) * 1983-09-20 1985-04-17 日本電子機器株式会社 Internal combustion engine idle speed control device
JPS60119337A (en) * 1983-11-30 1985-06-26 Aisan Ind Co Ltd Controlling method of engine idling speed
JPS60125336U (en) * 1984-02-01 1985-08-23 トヨタ自動車株式会社 Diesel engine fuel injection system
JPH0355800Y2 (en) * 1984-02-01 1991-12-12
JPS6163448U (en) * 1984-10-01 1986-04-30
JPS6165257U (en) * 1984-10-02 1986-05-02
JPS6293455A (en) * 1985-10-21 1987-04-28 Hitachi Ltd Idling speed controller
JPS62171639U (en) * 1986-04-22 1987-10-30

Also Published As

Publication number Publication date
JPS638303B2 (en) 1988-02-22

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