Vehicle power supply device

Details Vehicle power supply device Vehicle power supply device

2011-08-30

2011-08-30

Wallis, Michael Rutland (Department: 2836)

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

Reexamination Certificate

active

08008801

ABSTRACT:
A vehicle power supply device which prevents a lack of power supply to the motor and insufficient recovery of regenerative electric power of the motor at the time of switching between power running and regeneration. First input-output sections (3a,3b) of a first DC-DC converter (3) are connected to second input-output sections (4d,4e) of a PDU (4), second input-output sections (3c,3d) of the first DC-DC converter (3) are connected to a fuel cell (1) and a capacitor (2), first input-output sections (20a,20b) of a second DC-DC converter (20) are connected to second input-output sections (4d,4e) of the PDU (4), and second input-output sections (20c,20d) of the second DC-DC converter (20) are connected to a lithium-ion battery (21). A voltage control means (31) places the first DC-DC converter (3) or the second DC-DC converter (20) in a direct connection state and controls an output voltage of the other DC-DC converter according to an output voltage of the DC-DC converter placed in the direct connection state during the power running of the motor (5) and during regeneration thereof.

REFERENCES:
patent: 7436148 (2008-10-01), Saeki et al.
patent: 7804196 (2010-09-01), Watanabe et al.
patent: 2000-012059 (2000-01-01), None
patent: 2004-248432 (2004-09-01), None
patent: 2006-073506 (2006-03-01), None
patent: 2007-209161 (2007-08-01), None

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