Thermal management system and control method for a hydrogen fuel cell vehicle
A thermal management system and fuel cell technology, applied in battery/fuel cell control devices, electric vehicles, vehicle components, etc., can solve problems such as energy waste, increased vehicle energy consumption, and large electric energy
Active Publication Date: 2022-04-01
WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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Problems solved by technology
[0002] At present, the heating system in the thermal management system of domestic hydrogen fuel cell vehicles is heated by PTC (Positive Temperature Coefficient, positive temperature coefficient thermistor), which consumes a lot of electric energy; at the same time, the waste heat generated by hydrogen fuel cells passes through the radiator All the heat is dissipated into the air, resulting in serious energy waste, which increases the energy consumption of the vehicle. Therefore, it is necessary to improve the thermal management system in order to improve energy utilization
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Embodiment 1
[0024] Such as figure 1 As shown, a thermal management system of a hydrogen fuel cell vehicle includes a hydrogen fuel cell stack 1, a radiator 5 and a first water pump 3 which are sequentially communicated through pipelines to form a first closed circuit 12; and a first three-way proportional valve The first port of 8, the second water pump 4, the PTC heater 2, the first port of the second three-way proportional valve 9, the second port of the second three-way proportional valve 9, the heater core 7, and the four-way valve 10 The first port of the first port, the second port of the four-way valve 10, and the second port of the first three-way proportional valve 8 are sequentially communicated through pipelines to form a second closed circuit 13; the two ends of the heat pipe 61 of the heat exchanger 6 are connected with The first port of the second three-way proportional valve 9 communicates with the third port of the four-way valve 10; the cold pipe 62 of the heat exchanger ...
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The invention discloses a heat management system and a control method of a hydrogen fuel cell vehicle. The system includes a hydrogen fuel cell stack, a radiator and a first water pump in communication to form a first closed loop; the first port of the first three-way proportional valve, the second water pump, the PTC heater, and the first port of the second three-way proportional valve The port, the second port of the second three-way proportional valve, the heater core, the first port of the four-way valve, the second port of the four-way valve, and the second port of the first three-way proportional valve are connected to form a second closed loop ; Both ends of the hot pipe of the heat exchanger communicate with the first port of the second three-way proportional valve and the third port of the four-way valve respectively; the cold pipe of the heat exchanger communicates with the battery pack to form a third closed loop; the first three-way proportional The third port of the valve is connected with the first closed circuit; the third port of the four-way valve is connected with the first closed circuit; by controlling the connection relationship of the valve ports, the working modes of the three circuits can be controlled; the energy can be fully utilized, thereby reducing the overall Vehicle energy consumption.
Description
technical field [0001] The invention relates to the technical field of hydrogen fuel cell vehicles, in particular to a thermal management system and control method for hydrogen fuel cell vehicles. Background technique [0002] At present, the heating system in the thermal management system of domestic hydrogen fuel cell vehicles is heated by PTC (Positive Temperature Coefficient, positive temperature coefficient thermistor), which consumes a lot of electric energy; at the same time, the waste heat generated by the hydrogen fuel cell passes through the radiator All the heat is dissipated into the air, resulting in serious energy waste, which increases the energy consumption of the vehicle. Therefore, it is necessary to improve the thermal management system in a targeted manner to improve energy utilization. Contents of the invention [0003] The object of the present invention is to propose a thermal management system and control method for a hydrogen fuel cell vehicle with...
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IPC IPC(8): B60L58/33B60L58/34B60H1/00
CPCB60L58/33B60L58/34B60H1/00278B60H1/00392Y02T90/40
Inventor 赵春平郝义国
Owner WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD