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:
Oct. 03, 2017
Filed:
Mar. 15, 2013
Denso Corporation, Kariya, Aichi-Pref., JP;
Advics Co., Ltd., Kariya, Aichi-Pref., JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
ADVICS CO., LTD., Kariya, Aichi-pref., JP;
Abstract
An abnormality monitoring circuit of an ECU includes a microcomputer, a reset circuit that resets the microcomputer, a monitor circuit that monitors the operation of the microcomputer, and an output circuit that activates an external actuator. The monitor circuit has an abnormality decision signal output section that outputs an abnormality decision signal to the output circuit when not being able to confirm that an output of a normal monitor signal of the microcomputer has occurred within an abnormality decision time. The monitor circuit has a reset decision signal output section that outputs a reset decision signal to the reset circuit when not being able to confirm that an output of the normal monitor signal of the microcomputer has occurred within a BIST (Built In Self Test) completion time of the microcomputer and a reset decision time set to a time longer than the abnormality decision time.