JPS57106901A - Digital controller for vehicle - Google Patents

Digital controller for vehicle

Info

Publication number
JPS57106901A
JPS57106901A JP18360380A JP18360380A JPS57106901A JP S57106901 A JPS57106901 A JP S57106901A JP 18360380 A JP18360380 A JP 18360380A JP 18360380 A JP18360380 A JP 18360380A JP S57106901 A JPS57106901 A JP S57106901A
Authority
JP
Japan
Prior art keywords
converter
sensors
voltage
circuit
converted data
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
JP18360380A
Other languages
Japanese (ja)
Inventor
Kunro Umesaki
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP18360380A priority Critical patent/JPS57106901A/en
Publication of JPS57106901A publication Critical patent/JPS57106901A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B15/00—Systems controlled by a computer
    • G05B15/02—Systems controlled by a computer electric

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE:To prevent converted data from an A/D converter from varying with a supply voltage, by using a power voltage supplied through a protecting circuit to a sensor as the reference voltage of the A/D converter. CONSTITUTION:A power voltage supplied to sensors 6-8 through overcurrent protecting circuits 3-5 is used as the reference voltage of an A/D converter 16. Consequently, converted data from said converter 16 is prevented from varying with the supply voltage to the sensors 6-8, and the converted data is accurate even when the stability of a constant-voltage circuit 2 as a supply voltage source is not so high. In addition, even if the supply voltage to the sensors 6-8 varies owing to the short circuit, etc., of some of supply lines to the sensors 6-8, any influence upon the power voltage supplied to the whole of a digital control circuit 18 is not exerted, securing the normal operation of the digital control circuit 18 at any time.
JP18360380A 1980-12-24 1980-12-24 Digital controller for vehicle Pending JPS57106901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18360380A JPS57106901A (en) 1980-12-24 1980-12-24 Digital controller for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18360380A JPS57106901A (en) 1980-12-24 1980-12-24 Digital controller for vehicle

Publications (1)

Publication Number Publication Date
JPS57106901A true JPS57106901A (en) 1982-07-03

Family

ID=16138692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18360380A Pending JPS57106901A (en) 1980-12-24 1980-12-24 Digital controller for vehicle

Country Status (1)

Country Link
JP (1) JPS57106901A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949351A (en) * 1982-09-11 1984-03-21 Nippon Denso Co Ltd A/d converting method of engine control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949351A (en) * 1982-09-11 1984-03-21 Nippon Denso Co Ltd A/d converting method of engine control device

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