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:
Sep. 25, 2012
Filed:
Jun. 30, 2008
Hironori Harada, Okazaki, JP;
Hironori Harada, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An electric vehicle includes a secondary battery which performs charge from an external power source and travels by using power of the secondary battery. The electric vehicle further includes: a charging unit which charges the secondary battery with power supplied by connecting a charge plug to the external power source; and a control unit which performs information acquisition or control for respective constituent elements. The control unit acquires a remaining capacity value from the secondary battery upon charge. When the control unit judges that a high charge capacity state continues a predetermined number of times, the control unit performs charge up to a charge capacity lower than a full electric capacity amount. This can suppress degradation of the secondary battery by charge.