EMERGENCY START DEVICE OF FUEL CELL VEHICLE
First Claim
1. An emergency start device of a fuel cell vehicle having a motor as a driving source, the emergency start device comprising:
- a fuel cell configured to supply power to the motor;
an air blower configured to supply air to the fuel cell;
a high voltage battery configured to supply power to the air blower;
a direct current (DC) converter configured to increase an output of the high voltage battery to transfer the output to the air blower; and
a first switch configured to transfer or intercept an output of the high voltage battery to the air blower,wherein by directly transferring a voltage of the high voltage battery to the air blower, the fuel cell is driven, when the DC converter fails while driven by the high voltage battery.
1 Assignment
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Accused Products
Abstract
An emergency start device of a fuel cell vehicle having a motor as a driving source is provided and includes a fuel cell that supplies power to a motor and an air blower that supplies air to the fuel cell. A high voltage battery supplies power to the air blower and a direct current (DC) converter increases an output of the high voltage battery to transfer the output to the air blower. In addition, a first switch transfers or intercepts an output of the high voltage battery to the air blower. By directly transferring a voltage of the high voltage battery to the air blower, the fuel cell is driven, when the DC converter fails while driving by the high voltage battery.
7 Citations
19 Claims
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1. An emergency start device of a fuel cell vehicle having a motor as a driving source, the emergency start device comprising:
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a fuel cell configured to supply power to the motor; an air blower configured to supply air to the fuel cell; a high voltage battery configured to supply power to the air blower; a direct current (DC) converter configured to increase an output of the high voltage battery to transfer the output to the air blower; and a first switch configured to transfer or intercept an output of the high voltage battery to the air blower, wherein by directly transferring a voltage of the high voltage battery to the air blower, the fuel cell is driven, when the DC converter fails while driven by the high voltage battery. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An emergency start method of a fuel cell vehicle having a motor as a driving source, the method comprising:
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determining, by a controller, whether a direct-current (DC) converter operates normally; in response to determining that the DC/DC converter is operating normally, alternately turning on and off, by the controller, first and second transistors and charging a charge to a second capacitor; turning on, by the controller, an air blower using a voltage battery when a voltage of the second capacitor has reached a predetermined voltage. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
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program instructions that determine whether a direct-current (DC) converter operates normally; program instructions that alternately turn on and off first and second transistors and charging a charge to a second capacitor in response to determining that the DC/DC converter is operating normally; program instructions that turn on an air blower using a voltage battery when a voltage of the second capacitor has reached a predetermined voltage. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification