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. 09, 2014
Filed:
Feb. 03, 2011
Akihiko Kudo, Hitachinaka, JP;
Mutsumi Kikuchi, Mito, JP;
Gosuke Shibahara, Vancouver, CA;
Akihiko Emori, Hitachi, JP;
Yasuo Uemura, Naka, JP;
Tatsumi Yamauchi, Hitachiota, JP;
Kenji Kubo, Hitachi, JP;
Yoshinori Aoshima, Tsukubamirai, JP;
Akihiko Kudo, Hitachinaka, JP;
Mutsumi Kikuchi, Mito, JP;
Gosuke Shibahara, Vancouver, CA;
Akihiko Emori, Hitachi, JP;
Yasuo Uemura, Naka, JP;
Tatsumi Yamauchi, Hitachiota, JP;
Kenji Kubo, Hitachi, JP;
Yoshinori Aoshima, Tsukubamirai, JP;
Hitachi Vehicle Energy, Ltd., Hitachinaka-shi, JP;
Abstract
A battery control device for a battery module includes a plurality of integrated circuits. Each integrated circuit includes: a constant voltage circuit that lowers a total voltage of a battery cell group corresponding to the integrated circuit to an integrated circuit internal voltage; a signal generation circuit that generates, based upon a first signal provided by a higher-order control circuit, a second signal assuming a wave height value different from a wave height value of the first signal and outputs the second signal; and a startup circuit that includes a first comparator assuming a first decision-making threshold value corresponding to the first signal and a second comparator assuming a second decision-making threshold value corresponding to the second signal, and starts up the constant voltage circuit in response to a change in an output from at least either the first comparator or the second comparator.