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:
Apr. 12, 2022
Filed:
Jul. 15, 2020
Yazaki Corporation, Tokyo, JP;
Atsushi Takahashi, Susono, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A switch failure detection device includes switches provided on branch paths, current detection units provided on the branch paths, the current detection units being configured to output a current detection signal, a storage unit configured to store an initial value of the current detection signal, the initial value being output from the current detection units, a switch control unit to turn off one of the plurality of switches one by one with at least another one of the plurality of switches being turned on and a first failure detection unit configured to compare the initial value and a value of a first current detection signal output from a corresponding one of the current detection units when the one of the switches is turned off, the first failure detection unit being further configured to detect a first failure of the plurality of switches based on a result of the comparison.