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:
Jul. 24, 2018
Filed:
Apr. 29, 2014
Denso Corporation, Kariya, Aichi-pref., JP;
Syota Nakamura, Nomi, JP;
Junichi Fukuta, Kuwana, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A voltage detection device controls operation of system main relays to change an applied voltage supplied to detection circuits. An error of each of the detection circuits is corrected on the basis of a detection value of each of the detection circuits when the applied voltage is changed. In particular, an offset value is corrected on the basis of a detection value of each of the detection circuits when the system main relays and booster switches are controlled so that a voltage of a high voltage battery supplied to each of the detection circuits becomes zero. A gain error is further corrected on the basis of a detection value of each of the detection circuits when the system main relays and the booster switches are controlled so that the applied voltage supplied to each of the detection circuits becomes equal to the voltage of the high voltage battery.