Vehicle fuel cell extraction system

The invention provides a vehicle fuel cell extraction system. A vehicle includes a fuel cell unit, an inlet valve, an extraction valve, and a controller. The fuel cell has an anode side configured to receive hydrogen. The inlet valve is configured to open to deliver the hydrogen to the anode side. The purge valve is configured to open to purge water and nitrogen from the anode side. The controller is programmed to operate the inlet valve to inject hydrogen into the anode side via opening the inlet valve and then closing the inlet valve. The controller is also programmed to open the purge valve to purge water and nitrogen from the anode side in response to a concentration of the hydrogen in the anode side being less than a threshold. 本公开提供了"车辆燃料电池单元抽取系统"。一种车辆包括燃料电池单元、入口阀、抽取阀和控制器。所述燃料电池单元具有被配置成接收氢的阳极侧。所述入口阀被配置成打开以将所述氢递送到所述阳极侧。所述抽取阀被配置成打开以从所述阳极侧抽取水和氮。所述控制器被编程以经由打开所述入口阀然后关闭所述入口阀来操作所述入口阀以将氢喷射到所述阳极侧中。所述控制器还被编程以响应于所述阳极侧中的所述氢的浓度小于阈值，而打开所述抽取阀以从所述阳极侧抽取水和氮。