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:
Dec. 09, 2014
Filed:
Sep. 28, 2010
Keisuke Tanigawa, Nishio, JP;
Takumi Shimizu, Yokkaichi, JP;
Tomomichi Mizoguchi, Nagoya, JP;
Manabu Sasaki, Toyota, JP;
Yoshiaki Kikuchi, Toyota, JP;
Ryo Mano, Toyota, JP;
Jyunta Izumi, Toyota, JP;
Teruo Ishishita, Miyoshi, JP;
Keisuke Tanigawa, Nishio, JP;
Takumi Shimizu, Yokkaichi, JP;
Tomomichi Mizoguchi, Nagoya, JP;
Manabu Sasaki, Toyota, JP;
Yoshiaki Kikuchi, Toyota, JP;
Ryo Mano, Toyota, JP;
Jyunta Izumi, Toyota, JP;
Teruo Ishishita, Miyoshi, JP;
Denso Corporation, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A plurality of voltage switching circuitsare provided in a switching unitto relatively change a reference voltage to plural levels, thus detecting a spontaneous change of the reference voltage. A range of relative change in the reference voltage by the plurality of voltage switching circuitsis set to a usage voltage rangeoras a part of a total voltage rangeof each of cellsto. This eliminates the need to provide voltage switching circuitsrequired to relatively change the reference voltage over the total voltage range of each of the cellsto, making it possible to minimize the number of the voltage switching circuitsfor each of the cellsto. Thus, it is possible to prevent the size of a battery pack control apparatusfrom increasing.