JPS57169610A - Fault detector for crank angle sensor - Google Patents

Fault detector for crank angle sensor

Info

Publication number
JPS57169610A
JPS57169610A JP5428881A JP5428881A JPS57169610A JP S57169610 A JPS57169610 A JP S57169610A JP 5428881 A JP5428881 A JP 5428881A JP 5428881 A JP5428881 A JP 5428881A JP S57169610 A JPS57169610 A JP S57169610A
Authority
JP
Japan
Prior art keywords
signal
detecting
sensor
crank angle
angle sensor
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
JP5428881A
Other languages
Japanese (ja)
Inventor
Yasunori Mori
Osamu Abe
Akira Teragakinai
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 JP5428881A priority Critical patent/JPS57169610A/en
Publication of JPS57169610A publication Critical patent/JPS57169610A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To easily specify a faulty point by securely detecting a fault of a sensor by a microcomputer on the basis of the presence of a signal sent from the sensor a certain time after a starter switch turns on. CONSTITUTION:An engine controller which uses an electronic controller including microcomputers 102-106, etc., is provided with the 1st detecting means of generating the 1st signal on detecting a starter switch 152 being turned on, and a timer means which starts operation in response to the 1st signal and then generates the 2nd signal a certain time, e.g. 0.5sec later. Further, it is provided with the 2nd detecting means of detecting the presence of a signal from a crank angle sensor 146 when the 1st and 2nd signals are present at the same time, and a fault of the crank angle sensor 146 is detected on the basis of the absence of the signal from the sensor 146 by the 2nd detecting means. For example, a program stored in a PAMII1104 is executed to perform said detection.
JP5428881A 1981-04-13 1981-04-13 Fault detector for crank angle sensor Pending JPS57169610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5428881A JPS57169610A (en) 1981-04-13 1981-04-13 Fault detector for crank angle sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5428881A JPS57169610A (en) 1981-04-13 1981-04-13 Fault detector for crank angle sensor

Publications (1)

Publication Number Publication Date
JPS57169610A true JPS57169610A (en) 1982-10-19

Family

ID=12966371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5428881A Pending JPS57169610A (en) 1981-04-13 1981-04-13 Fault detector for crank angle sensor

Country Status (1)

Country Link
JP (1) JPS57169610A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58201070A (en) * 1982-05-20 1983-11-22 Honda Motor Co Ltd Detection for abnormality of engine rotation sensor and method for measuring engine speed for abnormality
JPS62110120A (en) * 1985-07-23 1987-05-21 Toyota Motor Corp Method for judging abnormality of sensor
JP2011024354A (en) * 2009-07-16 2011-02-03 Yanmar Co Ltd Engine generator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54112A (en) * 1977-06-03 1979-01-05 Hitachi Ltd Combustion control system
JPS54146346A (en) * 1978-05-09 1979-11-15 Nippon Denso Co Ltd Fault diagnosing method and device for electronic controller for automobile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54112A (en) * 1977-06-03 1979-01-05 Hitachi Ltd Combustion control system
JPS54146346A (en) * 1978-05-09 1979-11-15 Nippon Denso Co Ltd Fault diagnosing method and device for electronic controller for automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58201070A (en) * 1982-05-20 1983-11-22 Honda Motor Co Ltd Detection for abnormality of engine rotation sensor and method for measuring engine speed for abnormality
JPS6157576B2 (en) * 1982-05-20 1986-12-08 Honda Motor Co Ltd
JPS62110120A (en) * 1985-07-23 1987-05-21 Toyota Motor Corp Method for judging abnormality of sensor
JP2011024354A (en) * 2009-07-16 2011-02-03 Yanmar Co Ltd Engine generator

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