The embodiment of the invention provides a fuel cell power supply system and a control method and a control device thereof, a fuel cell power supply group, a power cell power supply group and a relay are respectively connected with a whole vehicle controller, the fuel cell power supply group is connected with the power cell power supply group through the relay, and after the whole vehicle is started, the fuel cell power supply group is connected with the power cell power supply group through the relay. Furthermore after the whole vehicle is started, the actual power required by the whole vehicle is obtained through the whole vehicle controller. When the actual power is smaller than or equal to a first preset threshold value, the fuel cell power supply group is controlled to supply power to an electricity load end, the power cell power supply group is controlled to be in a standby state, and the relay is controlled to be in a closed state, so that the power cell power supply group is charged; otherwise, the fuel cell power supply group and the power cell power supply group are controlled to supply power to the electricity load end together, and controlling the relay to be in an off state until the working state of the power cell power supply group meets the preset triggering condition. Only a small-capacity and small-power battery needs to be configured, and the weight and cost of a whole vehicle power supply system are reduced.
本发明实施例提供了一种燃料电池供电系统及其控制方法和控制装置,通过将燃料电池供电组、动力电池供电组以及继电器,分别与整车控制器连接,其中,燃料电池供电组通过继电器与动力电池供电组连接,并在整车启动后,通过整车控制器获取整车需要的实际功率。在实际功率小于或等于第一预设阈值时,控制燃料电池供电组向用电负载端供电,并控制动力电池供电组处于待机状态,以及控制继电器处于闭合状态,以对动力电池供电组充电;否则,控制燃料电池供电组和动力电池供电组共同向用电负载端供电,并控制继电器处于断开状态,直到动力电池供电组的工作状态满足预设触发条件。本发明只需配置小容量、小功率的电池,降低了整车供电系统的重量以及成本。
Fuel cell power supply system and control method and control device thereof
一种燃料电池供电系统及其控制方法和控制装置
2021-11-26
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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