METHOD AND SYSTEM FOR HANDLING BRAKING EVENTS IN FUEL CELL VEHICLES
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Mar 1, 2024
filing date -
Mar 1, 2024
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Abstract
System and method for dissipating power during a braking event in a vehicle. The vehicle includes a power assembly including a fuel cell system, an air compressor, a first flow control valve configured to selectively direct a compressed air flow from the air compressor to one or both the fuel cell system and a second path; and a second flow control valve positioned in the second path and configured to selectively direct the air flow to one or both a brake resistor and an air storage device. A control unit is configured to estimate a braking power of the braking event, and, when an energy storage system cannot fully absorb the braking power, operate the first and second flow control valves to selectively direct the compressed air flow from the air compressor to one or more of the fuel cell stack, the air storage device, and the brake resistor.
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