The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2011
Filed:
Nov. 07, 2008
Tetsuo Maeda, Kobe, JP;
Masaharu Yuhara, Chiyoda-ku, JP;
Masahide Fujita, Chiyoda-ku, JP;
Michihiro Takata, Chiyoda-ku, JP;
Takayuki Yano, Kobe, JP;
Daisuke Yase, Chiyoda-ku, JP;
Tetsuo Maeda, Kobe, JP;
Masaharu Yuhara, Chiyoda-ku, JP;
Masahide Fujita, Chiyoda-ku, JP;
Michihiro Takata, Chiyoda-ku, JP;
Takayuki Yano, Kobe, JP;
Daisuke Yase, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
The on-vehicle electronic control device includes a main power supply circuit fed with power from an on-vehicle battery through an output contact of a power supply relay and a main power supply terminal of a connector to supply a stabilized control voltage to a microprocessor. When contact failure occurs in the main power supply terminal, the main power supply circuit is fed with bypass power from the output contact through a first electrical load and a commutation diode to perform the one of the report of the abnormality and the storage of the abnormality occurrence history information. A bypass power fed state is detected when an input voltage to the main power supply circuit is lower than a power supply voltage of the on-vehicle battery.