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US 12,658,458 B2Granted
Fuel cell start control system and control method therefor
AssigneesHyundai Motor Company, Kia Corporation
InventorsJae Gwang Lee, Won Sik Jeong
Life of this patent
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Abstract
The fuel cell start control system includes a plurality of fuel cell stacks configured to generate power by receiving air and fuel, a power storage device connected to a bidirectional converter and configured to be charged by generated power of a respective fuel cell stack or configured to supply power, and includes a controller configured to control a start of a fuel cell stack among the plurality of fuel cell stacks which satisfies a start condition based on a fuel cell stack starting request, the controller configured to control a start of at least one fuel cell stack based on generated power of the fuel cell stack or charged power of at least one power storage device.
Claims5
A fuel cell start control system comprising:
- a plurality of fuel cell stacks configured to generate power by receiving air and fuel;
- at least one bidirectional converter connected to at least one fuel cell among the plurality of fuel cell stacks;
- at least one power storage device connected to the bidirectional converter of the at least one fuel cell stack and configured to be charged by generated power of a respective fuel cell stack of the plurality of fuel cell stacks or configured to be discharged so as to supply power;
- and
- a controller configured to control a start of at least one first fuel cell stack among the plurality of fuel cell stacks which satisfies a start condition based on a fuel cell stack starting request, the controller configured to control a start of at least one second fuel cell stack including at least one fuel cell stack excluding the at least one first fuel cell stack among the plurality of fuel cell stacks based on generated power of the at least one first fuel cell stack or charged power of at least one power storage device connected to the at least one first fuel cell stack and charged by the generated power of the at least one first fuel cell stack,
- wherein the start condition comprises a voltage condition of the at least one power storage device connected to the at least one fuel cell stack, and comprises a failure condition of the at least one bidirectional converter,
- wherein, when a charging voltage of the at least one power storage device connected to the at least one second fuel cell stack is less than a reference value, the controller is configured to determine whether the at least one bidirectional converter connected to the at least one second fuel cell stack is normal, thereby controlling the start of the at least one second fuel cell stack,
- wherein in response to a determination that the at least one bidirectional converter connected to the at least one second fuel cell stack is normal, the controller is configured to control such that the at least one power storage device connected to the at least one second fuel cell stack is charged by the generated power of the at least one first fuel cell stack,
- wherein the controller is configured to control the start of the at least one second fuel cell stack, after the at least one power storage device connected to the at least one second fuel cell stack is completely charged, based on the charged power of the at least one power storage device connected to the at least one second fuel cell stack.
6 more elements
A fuel cell start control system comprising:
- a plurality of fuel cell stacks configured to generate power by receiving air and fuel;
- at least one bidirectional converter connected to at least one fuel cell among the plurality of fuel cell stacks;
- at least one power storage device connected to the bidirectional converter of the at least one fuel cell stack and configured to be charged by generated power of a respective fuel cell stack of the plurality of fuel cell stacks or configured to be discharged so as to supply power;
- and
- a controller configured to control a start of at least one first fuel cell stack among the plurality of fuel cell stacks which satisfies a start condition based on a fuel cell stack starting request, the controller configured to control a start of at least one second fuel cell stack including at least one fuel cell stack excluding the at least one first fuel cell stack among the plurality of fuel cell stacks based on generated power of the at least one first fuel cell stack or charged power of at least one power storage device connected to the at least one first fuel cell stack and charged by the generated power of the at least one first fuel cell stack,
- wherein the controller is configured to calculate the generated power of the at least one first fuel cell stack, and is configured to calculate the number of the second fuel cell stacks in which the start thereof is capable of being controlled based on the calculated generated power.
3 more elements
A fuel cell start control system comprising:
- a plurality of fuel cell stacks configured to generate power by receiving air and fuel;
- at least one bidirectional converter connected to at least one fuel cell among the plurality of fuel cell stacks;
- at least one power storage device connected to the bidirectional converter of the at least one fuel cell stack and configured to be charged by generated power of a respective fuel cell stack of the plurality of fuel cell stacks or configured to be discharged so as to supply power;
- and
- a controller configured to control a start of at least one first fuel cell stack among the plurality of fuel cell stacks which satisfies a start condition based on a fuel cell stack starting request, the controller configured to control a start of at least one second fuel cell stack including at least one fuel cell stack excluding the at least one first fuel cell stack among the plurality of fuel cell stacks based on generated power of the at least one first fuel cell stack or charged power of at least one power storage device connected to the at least one first fuel cell stack and charged by the generated power of the at least one first fuel cell stack,
- wherein the controller is configured to calculate a value as a target output in which the value is obtained by subtracting a power consumption of an auxiliary device from a value obtained by adding generated power of the plurality of fuel cell stacks and supplied power of the at least one power storage device, and is configured to control the start of the plurality of fuel cell stacks according to the calculated target output.
3 more elements
Dependencies are inferred from the claim text.