Title:
FUEL CELL SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2013/001343
Kind Code:
A3
Abstract:
A fuel cell system (10) includes: a motor (16); a fuel cell (11) and an electrical storage device (13) connected to the motor (16) in parallel with each other; a first voltage converter (12) between the motor (16) and the fuel cell (11); a second voltage converter (14) between the motor (16) and the electrical storage device (13); a load circuit between the motor (16) and both the first (12) and second (14) voltage converters; and a control unit (20). The control unit (20) stops boost operation of the first voltage converter (12) when conditions VFC > VM_min and VFC > VBAT + a whereas the control unit (20) prohibits a stop of the boost operation of the first voltage converter (12) when the conditions are not satisfied, wherein in the conditions, VFC is a fuel cell terminal voltage, VBAT is an electrical storage device terminal voltage and VM_min is a load circuit input terminal voltage, set to minimize a system loss while ensuring a torque required of the motor (16).
Inventors:
KAJIWARA SHIGETO (JP)
MORI HIROAKI (JP)
MORI HIROAKI (JP)
Application Number:
PCT/IB2012/001271
Publication Date:
May 02, 2013
Filing Date:
June 26, 2012
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
KAJIWARA SHIGETO (JP)
MORI HIROAKI (JP)
KAJIWARA SHIGETO (JP)
MORI HIROAKI (JP)
International Classes:
B60L1/00; B60L3/00; B60L11/18; B60L15/20
Foreign References:
| EP2226878A1 | 2010-09-08 | |||
| EP1928078A1 | 2008-06-04 | |||
| US20090146493A1 | 2009-06-11 |
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