JPS5654359A - Abnormality detecting method in vehicle speed measurement - Google Patents

Abnormality detecting method in vehicle speed measurement

Info

Publication number
JPS5654359A
JPS5654359A JP13110179A JP13110179A JPS5654359A JP S5654359 A JPS5654359 A JP S5654359A JP 13110179 A JP13110179 A JP 13110179A JP 13110179 A JP13110179 A JP 13110179A JP S5654359 A JPS5654359 A JP S5654359A
Authority
JP
Japan
Prior art keywords
speed
abnormality
abnormality detecting
vehicle speed
previous time
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
JP13110179A
Other languages
Japanese (ja)
Inventor
Takashi Iijima
Kenji Cho
Takao Kadowaki
Masuo Kawana
Hitomi Kurosawa
Kazuo Mikami
Kunio Nakaya
Akinobu Kitamura
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.)
KENSETSUSHO DOBOKU KENKYU
KENSETSUSHO DOBOKU KENKYU SHOCHO
Omron Corp
Original Assignee
KENSETSUSHO DOBOKU KENKYU
KENSETSUSHO DOBOKU KENKYU SHOCHO
Omron Tateisi Electronics Co
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 KENSETSUSHO DOBOKU KENKYU, KENSETSUSHO DOBOKU KENKYU SHOCHO, Omron Tateisi Electronics Co filed Critical KENSETSUSHO DOBOKU KENKYU
Priority to JP13110179A priority Critical patent/JPS5654359A/en
Publication of JPS5654359A publication Critical patent/JPS5654359A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE: To detect the abnormality of a speed detector by comparing the speed of the previous time with a predetermined value when no pulses are sent from the speed detector.
CONSTITUTION: When the signal VA sent from a speed detector is more than a maximum speed VMX or when the speed VA is 0 and the speed VB of the previous time is more than an abnormality detecting threshold speed VMN, an emergency stop command output 124 for the vehicle is emitted as speed abnormality. When the speed VB of the previous time is smaller than the abnormality detection threshold speed VMN even if the speed of this time is 0, it is decided that the speed has gradually decreased and stopped, and no speed abnormality is detected.
COPYRIGHT: (C)1981,JPO&Japio
JP13110179A 1979-10-11 1979-10-11 Abnormality detecting method in vehicle speed measurement Pending JPS5654359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13110179A JPS5654359A (en) 1979-10-11 1979-10-11 Abnormality detecting method in vehicle speed measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13110179A JPS5654359A (en) 1979-10-11 1979-10-11 Abnormality detecting method in vehicle speed measurement

Publications (1)

Publication Number Publication Date
JPS5654359A true JPS5654359A (en) 1981-05-14

Family

ID=15049995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13110179A Pending JPS5654359A (en) 1979-10-11 1979-10-11 Abnormality detecting method in vehicle speed measurement

Country Status (1)

Country Link
JP (1) JPS5654359A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821571A (en) * 1981-07-31 1983-02-08 Nippon Denso Co Ltd Self diagnosis of electronics for automobile
JPS5995465A (en) * 1982-11-25 1984-06-01 Diesel Kiki Co Ltd Fault detector for revolution sensor
JPS59112268A (en) * 1982-12-20 1984-06-28 Hitachi Ltd Automatic testing device of vehicle
JPS63302369A (en) * 1987-06-02 1988-12-09 Toyota Motor Corp Apparatus for detecting abnormality of number-of-rotation sensor
JPH0649184U (en) * 1992-12-11 1994-07-05 市光工業株式会社 Vehicle lighting
US7119532B2 (en) * 2003-02-17 2006-10-10 Toyota Jidosha Kabushiki Kaisha Systems and methods for detecting of abnormality in magnetic rotors

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821571A (en) * 1981-07-31 1983-02-08 Nippon Denso Co Ltd Self diagnosis of electronics for automobile
JPS5995465A (en) * 1982-11-25 1984-06-01 Diesel Kiki Co Ltd Fault detector for revolution sensor
JPS59112268A (en) * 1982-12-20 1984-06-28 Hitachi Ltd Automatic testing device of vehicle
JPS63302369A (en) * 1987-06-02 1988-12-09 Toyota Motor Corp Apparatus for detecting abnormality of number-of-rotation sensor
JPH0649184U (en) * 1992-12-11 1994-07-05 市光工業株式会社 Vehicle lighting
US7119532B2 (en) * 2003-02-17 2006-10-10 Toyota Jidosha Kabushiki Kaisha Systems and methods for detecting of abnormality in magnetic rotors

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