KR960017353A - Diagnostic circuit of runaway detection circuit - Google Patents

Diagnostic circuit of runaway detection circuit Download PDF

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Publication number
KR960017353A
KR960017353A KR1019950031733A KR19950031733A KR960017353A KR 960017353 A KR960017353 A KR 960017353A KR 1019950031733 A KR1019950031733 A KR 1019950031733A KR 19950031733 A KR19950031733 A KR 19950031733A KR 960017353 A KR960017353 A KR 960017353A
Authority
KR
South Korea
Prior art keywords
detecting circuit
program
cpu
clock pulse
congestion detecting
Prior art date
Application number
KR1019950031733A
Other languages
Korean (ko)
Other versions
KR100362251B1 (en
Inventor
마사히로 후쿠타
Original Assignee
이시이 쇼주
가부시키가이샤 간세이
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 이시이 쇼주, 가부시키가이샤 간세이 filed Critical 이시이 쇼주
Publication of KR960017353A publication Critical patent/KR960017353A/en
Application granted granted Critical
Publication of KR100362251B1 publication Critical patent/KR100362251B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/017—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
    • B60R21/0173—Diagnostic or recording means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01122—Prevention of malfunction
    • B60R2021/01184—Fault detection or diagnostic circuits

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Debugging And Monitoring (AREA)
  • Air Bags (AREA)
  • Safety Devices In Control Systems (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

본 발명은 CPU의 폭주검지회로를 전원이 공급되는 시점에서 진단하여 초기에 폭주검지회로의 이상을 검출할 수 있는 것이다. 프로그램을 내장하고 그 프로그램이 정상적으로 동작하고 있는 때에 클록 펄스를 출력하는 CPU와, 그 CPU에서 출력되는 클록 펄스를 입력하고 그 클록 펄스의 공급이 정지되는 때에 전기 CPU를 초기화하기 위한 리세트 신호를 출력하는 폭주검지회로를 갖추고, 전기 CPU는 전원이 공급된 직후에 스스로 프로그램 폭주 상태를 발생시켜 그 프로그램 발생후 소정 시간내에 전기 폭주검지회로로부터 리세트 신호를 공급받는 때에 폭주검지회로의 동작이 정상이라고 판단한다.According to the present invention, an abnormality of the congestion detecting circuit can be detected initially by diagnosing the congestion detecting circuit of the CPU at the time when the power is supplied. A CPU that embeds a program and outputs a clock pulse when the program is operating normally, and outputs a reset signal for initializing the electric CPU when the supply of the clock pulse is stopped and the supply of the clock pulse is stopped. A congestion detecting circuit is provided, and the electric CPU generates a program congestion state immediately after power is supplied, and when the reset signal is supplied from the electric congestion detecting circuit within a predetermined time after the program is generated, the operation of the congestion detecting circuit is normal. To judge.

Description

폭주검지회로의 진단회로Diagnostic circuit of runaway detection circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 적용예인 탑승자 보호장치의 구성을 설명하기 위한 회로 블록도.1 is a circuit block diagram for explaining the configuration of the occupant protection device that is an application example of the present invention.

제2도는 본 발명의 폭주 검지회로를 진단하는 프로그램의 설명도.2 is an explanatory diagram of a program for diagnosing a congestion detecting circuit of the present invention.

제3도는 프리런닝 카운터(free-running counter)의 동작을 설명하는 도면이다.3 is a diagram illustrating the operation of a free-running counter.

Claims (1)

프로그램을 내장하고 그 프로그램이 정상적으로 동작하고 있는 때에 클록 펄스(clock pulse)를 출력하는 CPU와, 그 CPU에서 출력되는 클록 펄스를 입력하고 그 클록 펄스의 공급이 장지되는 때에 전기 CPU를 초기화하기 위한 리세트(reset)신호를 출력하는 폭주검지회로(暴注檢知回路)를 갖추고, 전기CPU는 전원이 공급된 직후에 스스로 프로그램 폭주상태를 발생시켜 그 프로그램 발생후 소정 시간내에 전기 폭주검지회로로부터 리세트 신호를 공급받는 때에 폭주검지회로의 동작이 정상이라고 판단하는 것을 특징으로 하는 폭주검지회로의 진단회로.CPU for embedding a program and outputting a clock pulse when the program is operating normally, and for initializing the electric CPU when the clock pulse output from the CPU is input and the supply of the clock pulse is stopped. Equipped with a congestion detecting circuit that outputs a reset signal, the electric CPU generates a program congestion state immediately after power is supplied, and resets it from the electric congestion detecting circuit within a predetermined time after the program is generated. A diagnostic circuit for a congestion detecting circuit, characterized in that it is judged that the operation of the congestion detecting circuit is normal when the set signal is supplied. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950031733A 1994-11-25 1995-09-26 Diagnostic circuit of runaway detection circuit KR100362251B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6-291235 1994-11-25
JP29123594A JPH08142794A (en) 1994-11-25 1994-11-25 Diagnosis circuit for runaway detecting circuit

Publications (2)

Publication Number Publication Date
KR960017353A true KR960017353A (en) 1996-06-17
KR100362251B1 KR100362251B1 (en) 2003-03-26

Family

ID=17766231

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950031733A KR100362251B1 (en) 1994-11-25 1995-09-26 Diagnostic circuit of runaway detection circuit

Country Status (2)

Country Link
JP (1) JPH08142794A (en)
KR (1) KR100362251B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5778536B2 (en) * 2011-09-14 2015-09-16 株式会社ケーヒン Electronic control device and vehicle control system
CN113711209A (en) * 2019-04-25 2021-11-26 日立安斯泰莫株式会社 Electronic control device

Also Published As

Publication number Publication date
KR100362251B1 (en) 2003-03-26
JPH08142794A (en) 1996-06-04

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