[특허]Vehicle diagnosis system

Vehicle diagnosis system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01M-015/00
출원번호	US-0260408 (1994-06-14)
우선권정보	JP-0146261 (1993-06-17); JP-0156810 (1993-06-28)
발명자 / 주소	Oguro Hirokazu (Okazaki JPX) Iwai Akihito (Chiryu JPX) Takaba Katsumi (Obu JPX)
출원인 / 주소	Nippondenso Co., Ltd. (Kariya JPX 03)
인용정보	피인용 횟수 : 25 인용 특허 : 0

초록 ▼

In a vehicle diagnosis system in which a diagnosis unit is connected to a control unit, the control unit determines whether or not there is a code read request from the diagnosis unit. When there is the request, it further determines whether or not code erase is in execution. When code erase is not in execution, an abnormality code stored in the standby RAM region of its CPU is searched for and the result is transmitted to the diagnosis unit. When code erase is in execution, on the other hand, the data after code erase (no abnormality code) is transmitted to the diagnosis unit. Thus, during code erase operation, the abnormality data before erase is prevented from being transmitted to the diagnosis unit. Further, in case of a RAM value read request is made from a main CPU to other CPU in the controller, it is checked whether a requested address value from the main CPU to the other CPU agrees with the address value transmitted from the other CPU to the main CPU. When the address values agree, the flag XA4ANS is set. After a prescribed interval from this flag setting, the RAM value corresponding to the requested address are responsively sent out to the diagnosis unit. Therefore, transmission of erroneous information to the diagnosis unit can be prevented without fail.

대표청구항 ▼

A vehicle diagnostic system comprising: a controller installed in a vehicle for detecting various abnormalities and storing information about such abnormalities in storage means thereof, and a diagnostic unit connectable to said controller and having read requesting means to request a read-out of the abnormality information stored in said storage means and erase request means to request erasure of the abnormality information stored in said storage means, wherein said controller is provided with: abnormality information erasing means for erasing the abnormality information stored in said storage means in response to an erase request of the abnormality information from said erase requesting means; erase condition detecting means for detecting whether the abnormality information is being erased; and abnormality information transmitting means for transmitting the abnormality information stored in said storage means to said diagnostic unit in response to a read request of the abnormality information from said read requesting means when said erase condition detecting means detects no erase condition, for preventing erroneous output of pre-erasure abnormality information from said controller to said diagnostic device when said erase condition detecting means detects erase an condition, and during erasing of the abnormality information by said abnormality information erasing means, for transmitting predetermined information indicative of no abnormality.

이 특허를 인용한 특허 (25)

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Okada, Kazunori, Electronic control unit and vehicle control system.
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Barbara L. Jones GB; Paul Smith GB, Method and apparatus for automotive and other testing.
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Lipscomb, Edward; Chinnadurai, Manokar; Boac, Corneliu, Universal serial bus memory device for use in a vehicle diagnostic device.
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Lipscomb, Edward; Chinnadurai, Manokar; Boac, Corneliu, Universal serial bus memory device for use in a vehicle diagnostic device.
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Okada, Kazunori; Shimizu, Kokichi, Vehicle abnormality monitoring apparatus.
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Leung Sherman, Vehicle communication control apparatus and method.
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Ishii Shigeru,JPX ; Shinso Yoshihide,JPX ; Fujioka Mitsuru,JPX, Vehicle diagnostic data storing system.
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Hattori Atsushi,JPX ; Tsuchiya Akiyoshi,JPX ; Enomoto Hiroyuki,JPX ; Osawa Keiichi,JPX, Vehicle information communication system and method capable of communicating with external management station.
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Minoru Hozuka JP; Yoshio Nakagaki JP; Shinichi Sano JP; Katsumi Takaba JP; Kazunori Kurokawa JP; Atsushi Hattori JP; Akiyoshi Tsuchiya JP; Hiroyuki Enomoto JP; Keiichi Osawa JP, Vehicle information communication system and method capable of communicating with external management station.
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Chene, George; Worrall, Jack R.; Ramsey, Reno V.; Shintaku, Wayne; French, Lee A.; Mueller, Brian Jeffrey; Lawruk, Gerald D.; Kramer, Dennis A., Vehicle inspection and maintenance system.
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George Chene ; Lee A. French ; Dennis A. Kramer ; Gerald D. Lawruk ; Brian Jeffrey Mueller ; Reno V. Ramsey ; Wayne Shintaku ; Jack R. Worrall, Vehicle systems data storage.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Vehicle diagnosis system 원문보기

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