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:
Oct. 24, 2000
Filed:
Mar. 24, 1999
Applicant:
Inventors:
Toshiyuki Kawai, Okazaki, JP;
Hidetoshi Kato, Suzuka, JP;
Tetsuya Kobayashi, Anjo, JP;
Takashi Yamashita, Kariya, JP;
Assignees:
Nippon Soken, Inc., Nishio, JP;
DENSO Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
320132 ;
Abstract
A method and device for determining whether a battery for a hybrid vehicle is fully charged includes: detecting the battery current, providing a unit of stored battery energy, detecting Joule heat loss and battery temperature, calculating changes in the battery Joule heat loss and battery temperature while the battery is charged by the unit of stored energy and a ratio between the Joule heat loss and temperature changes, and comparing the ratio of the Joule heat loss and temperature changes with a predetermined level.