Invention Grant
- Patent Title: Power supply system and electric powered vehicle including power supply system, and method for controlling power supply system
- Patent Title (中): 供电系统和电动车辆，包括供电系统和控制供电系统的方法
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Application No.: US12669939Application Date: 2008-06-25
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Publication No.: US08659182B2Publication Date: 2014-02-25
- Inventor: Shinji Ichikawa , Takahide Iida
- Applicant: Shinji Ichikawa , Takahide Iida
- Applicant Address: JP Toyota JP Kariya
- Assignee: Toyota Jidosha Kabushiki Kaisha,Kabushiki Kaisha Toyota Jidoshokki
- Current Assignee: Toyota Jidosha Kabushiki Kaisha,Kabushiki Kaisha Toyota Jidoshokki
- Current Assignee Address: JP Toyota JP Kariya
- Agency: Oliff, PLC
- Priority: JP2007-192021 20070724
- International Application: PCT/JP2008/061942 WO 20080625
- International Announcement: WO2009/013975 WO 20090129
- Main IPC: B60L1/00
- IPC: B60L1/00
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.
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