JPS57173522A - Control device of water pump in engine - Google Patents

Control device of water pump in engine

Info

Publication number
JPS57173522A
JPS57173522A JP5904581A JP5904581A JPS57173522A JP S57173522 A JPS57173522 A JP S57173522A JP 5904581 A JP5904581 A JP 5904581A JP 5904581 A JP5904581 A JP 5904581A JP S57173522 A JPS57173522 A JP S57173522A
Authority
JP
Japan
Prior art keywords
circuit
engine
signal
inputted
output
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
JP5904581A
Other languages
Japanese (ja)
Other versions
JPS6336406B2 (en
Inventor
Hideo Shiraishi
Yuji Takamori
Yasuyuki Morita
Masahiko Matsuura
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Toyo Kogyo 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 Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP5904581A priority Critical patent/JPS57173522A/en
Publication of JPS57173522A publication Critical patent/JPS57173522A/en
Publication of JPS6336406B2 publication Critical patent/JPS6336406B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid

Landscapes

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

Abstract

PURPOSE:To prevent overcooling of an engine at its deceleration, in a water pump of separately driven control type, by anticipatively controlling the pump at speed reduction of the engine to a state of stopping the pump or decreasing its speed. CONSTITUTION:There are detected cooling water temperature of an engine by a water temperature sensor 14 and a deceleration condition by a deceleration sensor 15, respectively, and each detected signal is inputted to a control device 13. When the engine is decelerated, a detected signal from a rotary speed sensor 16 is fed to a waveform shaper circuit 19 and an integrating circuit 20, if output from the integrating circuit 20 is larger than output of a reference level setter circuit 21, a signal is outputted from a comparator circuit 22. The signal of the comparator circuit 22 is inputted to a logical circuit 23, inputted with a detected signal from the deceleration sensor 15, and an output signal of the circuit 23 is inputted to a correction circuit 24 to correct an output signal of an output current arithmetic circuit 18, connected to a temperature detector circuit 17, and speed of a motor 11 for a water pump is decreased by a current control circuit 25.
JP5904581A 1981-04-18 1981-04-18 Control device of water pump in engine Granted JPS57173522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5904581A JPS57173522A (en) 1981-04-18 1981-04-18 Control device of water pump in engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5904581A JPS57173522A (en) 1981-04-18 1981-04-18 Control device of water pump in engine

Publications (2)

Publication Number Publication Date
JPS57173522A true JPS57173522A (en) 1982-10-25
JPS6336406B2 JPS6336406B2 (en) 1988-07-20

Family

ID=13101941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5904581A Granted JPS57173522A (en) 1981-04-18 1981-04-18 Control device of water pump in engine

Country Status (1)

Country Link
JP (1) JPS57173522A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879948A3 (en) * 1997-05-24 1999-07-07 DaimlerChrysler AG Method of operating a reciprocating piston engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0255803U (en) * 1988-10-18 1990-04-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879948A3 (en) * 1997-05-24 1999-07-07 DaimlerChrysler AG Method of operating a reciprocating piston engine

Also Published As

Publication number Publication date
JPS6336406B2 (en) 1988-07-20

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