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:
May. 05, 2009
Filed:
Apr. 19, 2004
Yusai Murakami, Hamamatsu, JP;
Norito Yamabe, Toyohashi, JP;
Yusai Murakami, Hamamatsu, JP;
Norito Yamabe, Toyohashi, JP;
Panasonic EV Energy Co., Ltd., Kosai-Shi, JP;
Abstract
The present invention provides an apparatus for correcting a voltage of a secondary battery, wherein accuracy in measurement of battery voltages between battery blocks in different voltage measurement systems. In a battery ECU (), the following components are disposed: a first voltage measuring part (-), a second voltage measuring part (-), a third voltage measuring part (-) and a fourth voltage measuring part (-) which are disposed in different voltage measurement systems so as to measure voltages of plural battery blocks; a representative voltage calculating part () for calculating representative voltages from battery voltages measured by the first to fourth voltage measuring parts; a voltage correction value calculating part () for calculating voltage correction values on the basis of the respective representative voltages; and a correction value reflecting part () for adding the voltage correction values to measured voltages of battery blocks in the respective corresponding voltage measurement systems.