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:
Feb. 25, 2014
Filed:
Jun. 25, 2008
Shinji Ichikawa, Toyota, JP;
Takahide Iida, Ichinomiya, JP;
Shinji Ichikawa, Toyota, JP;
Takahide Iida, Ichinomiya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya, JP;
Abstract
Converters are configured to operate in a normal operation to convert the electric power that is input/output to/from secondary batteries bidirectionally to direct current voltage. In a predetermined mode allowing the secondary batteries to be charged, at least one of the converters does not perform a switching operation and holds on an upper arm element to avoid a switching loss in charging the secondary batteries. An electric power loss caused at the converters in charging the secondary batteries can be reduced, and charging efficiency can be enhanced.