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:
Jan. 29, 2008
Filed:
Dec. 11, 2003
Shinji Fujihara, Hyogo, JP;
Kiyoharu Anzai, Tokyo, JP;
Motoshi Kiribayashi, Kyoto, JP;
Makoto Wanezaki, Kyoto, JP;
Hideji Nakamura, Kyoto, JP;
Toshiaki Hayashi, Kyoto, JP;
Shinji Fujihara, Hyogo, JP;
Kiyoharu Anzai, Tokyo, JP;
Motoshi Kiribayashi, Kyoto, JP;
Makoto Wanezaki, Kyoto, JP;
Hideji Nakamura, Kyoto, JP;
Toshiaki Hayashi, Kyoto, JP;
Japan Storage Battery Co., Ltd., Kyoto, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In order to provide a battery charging state arithmetic operation device which can judge a charging state of a battery currently being used easily and in a short time, there are provided battery voltage calculation meanswith specified load for calculating a first and a second battery voltages when a battery current is at a specified load current value from a first I-V characteristic of the battery which is in a first state as a currently used state and is stored in first I-V characteristic storage meansand a second I-V characteristic which is in a second state where the amount of remaining energy is small and is stored in second I-V characteristic storage means, and SOC arithmetic operation meansfor calculating an SOC (charging state) of the battery in the first state by using the first and the second battery voltages calculated.