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JPS5597622A - Warming-up device for engine control unit - Google Patents

Warming-up device for engine control unit

Info

Publication number
JPS5597622A
JPS5597622A JP296679A JP296679A JPS5597622A JP S5597622 A JPS5597622 A JP S5597622A JP 296679 A JP296679 A JP 296679A JP 296679 A JP296679 A JP 296679A JP S5597622 A JPS5597622 A JP S5597622A
Authority
JP
Japan
Prior art keywords
control unit
heater
engine control
ambient temperature
chip
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
JP296679A
Other languages
Japanese (ja)
Inventor
Masao Takato
Matsuo Amano
Toru Sugawara
Yoshitaka Shioiri
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 JP296679A priority Critical patent/JPS5597622A/en
Publication of JPS5597622A publication Critical patent/JPS5597622A/en
Pending 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 facilitate the driving of the car or the like in the cold district by securing the switching for energization between the heater and the engine control unit by means of the thermostat.
CONSTITUTION: The ambient temperature is detected via thermostat 32 for the chip groups which constitute the electronic computer functioning as the center of engine control unit 11, and switching circuit 31 using the relay which is controlled by the result of the above detection is provided. The power source is connected to the side of heater 33 at the chip ambient temperature lower than the lower limit set temperature and then connected to the side of the control unit (ignition coil 39, cell motor 34, etc.) at the temperature higher than the upper limit set temperature respectively. Furthermore, the heater which raises up the chip ambient temperature can be turned on when either one of the accessory switch of the engine key 30, the ignition switch and the start switch is kept on.
COPYRIGHT: (C)1980,JPO&Japio
JP296679A 1979-01-17 1979-01-17 Warming-up device for engine control unit Pending JPS5597622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP296679A JPS5597622A (en) 1979-01-17 1979-01-17 Warming-up device for engine control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP296679A JPS5597622A (en) 1979-01-17 1979-01-17 Warming-up device for engine control unit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP6131880A Division JPS5696563A (en) 1980-05-08 1980-05-08 Modulation method for digital signal

Publications (1)

Publication Number Publication Date
JPS5597622A true JPS5597622A (en) 1980-07-25

Family

ID=11544101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP296679A Pending JPS5597622A (en) 1979-01-17 1979-01-17 Warming-up device for engine control unit

Country Status (1)

Country Link
JP (1) JPS5597622A (en)

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