JPS5654518A - Control-system diagnostic device - Google Patents

Control-system diagnostic device

Info

Publication number
JPS5654518A
JPS5654518A JP13084679A JP13084679A JPS5654518A JP S5654518 A JPS5654518 A JP S5654518A JP 13084679 A JP13084679 A JP 13084679A JP 13084679 A JP13084679 A JP 13084679A JP S5654518 A JPS5654518 A JP S5654518A
Authority
JP
Japan
Prior art keywords
circuit
memory circuit
control system
control
writing command
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
JP13084679A
Other languages
Japanese (ja)
Inventor
Mitsuhiko Ezoe
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP13084679A priority Critical patent/JPS5654518A/en
Publication of JPS5654518A publication Critical patent/JPS5654518A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To enable a supervision over a fault of a control system in a package state and the investigation of its cause, by providing a memory circuit that receives input signals to a control circuit and actuator for the control system and a circuit that generates a writing command signal to the memory circuit. CONSTITUTION:The control system in the package state is fitted with memory circuit 15 and writing command circuit 16 and an input signal to control circuit 2 and that to actuator 3 are previously supplied to memory circuit 15 via signal lines 17 and 18 respectively. Every time a writing command signal is generated by writing command circuit 16, the contents of each input signal at every point in time are stored in memory circuit 15. Then, memory circuit 15 is detached from the control system and fault contents are detected from the memory contents to diagnose the fault.
JP13084679A 1979-10-12 1979-10-12 Control-system diagnostic device Pending JPS5654518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13084679A JPS5654518A (en) 1979-10-12 1979-10-12 Control-system diagnostic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13084679A JPS5654518A (en) 1979-10-12 1979-10-12 Control-system diagnostic device

Publications (1)

Publication Number Publication Date
JPS5654518A true JPS5654518A (en) 1981-05-14

Family

ID=15044053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13084679A Pending JPS5654518A (en) 1979-10-12 1979-10-12 Control-system diagnostic device

Country Status (1)

Country Link
JP (1) JPS5654518A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152567U (en) * 1982-04-06 1983-10-12 大島　弘之 Test equipment for electronically controlled fuel injection systems
JPS62232577A (en) * 1986-04-03 1987-10-13 Nissan Motor Co Ltd Signal memory apparatus
JPS636468A (en) * 1986-06-27 1988-01-12 Nissan Motor Co Ltd Diagnostic device for electronic control system
JPH01260344A (en) * 1988-04-11 1989-10-17 Fuji Heavy Ind Ltd Self-diagnostic apparatus for vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152567U (en) * 1982-04-06 1983-10-12 大島　弘之 Test equipment for electronically controlled fuel injection systems
JPS62232577A (en) * 1986-04-03 1987-10-13 Nissan Motor Co Ltd Signal memory apparatus
US4821562A (en) * 1986-04-03 1989-04-18 Nissan Motor Company, Limited Signal monitoring apparatus
JPH0772707B2 (en) * 1986-04-03 1995-08-02 日産自動車株式会社 Signal storage
JPS636468A (en) * 1986-06-27 1988-01-12 Nissan Motor Co Ltd Diagnostic device for electronic control system
JPH01260344A (en) * 1988-04-11 1989-10-17 Fuji Heavy Ind Ltd Self-diagnostic apparatus for vehicle

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