KR960017353A - Diagnostic circuit of runaway detection circuit - Google Patents
Diagnostic circuit of runaway detection circuit Download PDFInfo
- 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
Links
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
Landscapes
- 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
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)
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)
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 |
-
1994
- 1994-11-25 JP JP29123594A patent/JPH08142794A/en active Pending
-
1995
- 1995-09-26 KR KR1019950031733A patent/KR100362251B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100362251B1 (en) | 2003-03-26 |
JPH08142794A (en) | 1996-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
N231 | Notification of change of applicant | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |