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:
Aug. 20, 2013
Filed:
Apr. 19, 2010
Masahiro Ueda, Hitachinaka, JP;
Yoshinori Aoshima, Tsukubamirai, JP;
Masahiro Ueda, Hitachinaka, JP;
Yoshinori Aoshima, Tsukubamirai, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Vehicle Energy, Ltd., Hitachinaka-shi, JP;
Abstract
A vehicle battery control system includes: a battery module that is constituted with a plurality of cells that are connected in series; a cell controller that detects each voltage at the plurality of cells; and a battery control unit that detects a total voltage of the battery module based on a signal from a voltage sensor disposed between a contactor connected to the battery module and an inverter equipment connected to the contactor and calculates a battery state of the battery module based upon the detected total voltage. And the battery control unit calculates the battery state based upon a total value of voltages at the plurality of cells detected by the cell controller in place of the total voltage when the contactor is in an open state.