FUEL CELL VEHICLE
First Claim
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1. A fuel cell vehicle comprising:
- a fuel cell for performing power generation by inducing, by catalyst, reaction of a first gas containing oxygen and a second gas containing hydrogen supplied to the fuel cell;
a gas supply unit for supplying at least one of the first gas and the second gas to the fuel cell;
a voltage regulator for regulating output voltage of the fuel cell;
a drive motor as a load driven by electric power outputted from the fuel cell;
an energy storage device for storing electric power regenerated by the drive motor; and
a control unit for controlling the fuel cell, the gas supply unit, the voltage regulator, the drive motor, and the energy storage device,wherein at the time of regeneration of electric power by the drive motor, the control unit controls the voltage regulator to fix the voltage of the fuel cell at a predetermined voltage outside an oxidation reduction progress voltage range of the fuel cell where oxidation reduction proceeds while controlling the gas supply unit to decrease oxygen concentration or hydrogen concentration thereby for decreasing electric power outputted from the fuel cell.
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Abstract
A fuel cell vehicle is provided. The voltage of a fuel cell is fixed, by a DC/DC converter, to a voltage outside an oxidation reduction progress voltage range of the fuel cell. In this state, oxygen concentration or hydrogen concentration is decreased by a gas supply unit, and electric power outputted from the fuel cell is decreased. In this state, regenerative electric power generated by regeneration is collected into a battery.
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Citations
5 Claims
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1. A fuel cell vehicle comprising:
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a fuel cell for performing power generation by inducing, by catalyst, reaction of a first gas containing oxygen and a second gas containing hydrogen supplied to the fuel cell; a gas supply unit for supplying at least one of the first gas and the second gas to the fuel cell; a voltage regulator for regulating output voltage of the fuel cell; a drive motor as a load driven by electric power outputted from the fuel cell; an energy storage device for storing electric power regenerated by the drive motor; and a control unit for controlling the fuel cell, the gas supply unit, the voltage regulator, the drive motor, and the energy storage device, wherein at the time of regeneration of electric power by the drive motor, the control unit controls the voltage regulator to fix the voltage of the fuel cell at a predetermined voltage outside an oxidation reduction progress voltage range of the fuel cell where oxidation reduction proceeds while controlling the gas supply unit to decrease oxygen concentration or hydrogen concentration thereby for decreasing electric power outputted from the fuel cell. - View Dependent Claims (2, 3, 4, 5)
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Specification