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:
Mar. 31, 2015
Filed:
Sep. 13, 2012
Taku Yoshikawa, Shioya-gun, JP;
Takeshi Yamada, Shioya-gun, JP;
Shinichi Daibo, Utsunomiya, JP;
Yuichi Kobata, Utsunomiya, JP;
Taku Yoshikawa, Shioya-gun, JP;
Takeshi Yamada, Shioya-gun, JP;
Shinichi Daibo, Utsunomiya, JP;
Yuichi Kobata, Utsunomiya, JP;
Keihin Corporation, , JP;
Honda Motor Co., Ltd., , JP;
Abstract
An electronic control device includes: a processing unit that performs a predetermined process in accordance with a program; a watchdog timer that includes a time counter reset by a pulse signal output at a given period from the processing unit and outputs a signal having levels inverted depending on whether an overflow occurs; and a latch circuit that latches the signal output from the watchdog timer and outputs a signal obtained through the latching as a first output enable signal. The processing unit stops the output of the pulse signal, when diagnosing a malfunction of the watchdog timer, and diagnoses the malfunction of the watchdog timer based on the first output enable signal output from the latch circuit, after stopping the output of the pulse signal.