The invention discloses a vehicle-mounted fuel cell energy management method based on an average value. A fuel cell system outputs at fixed power P0 in the first N minutes, and then the fuel cell system outputs the power as the average value of the total power required by the whole vehicle in the previous period of time t. Therefore, the output power of the fuel cell system gradually tends to the average value of the total power required by the whole vehicle in the front time t, the SOC of the power cell can be controlled to operate in a small-range efficient interval, the service life of the power cell is prolonged, the use efficiency of the power cell is improved, the output power of the fuel cell system changes slowly, the change interval is relatively small, meanwhile, start-stop times of the fuel cell system are reduced, and the service life of the fuel cell is further prolonged. By reasonably distributing the power of the fuel cell system and the power of the power cell, the service life and the use efficiency of the power cell can be improved on the premise of not influencing the service life of the fuel cell system.
本发明公开了一种基于平均值的车载燃料电池能量管理方法,使燃料电池系统前N分钟以固定功率P0输出,之后燃料电池系统以前段时间t的整车需求总功率的平均值作为功率输出。这样燃料电池系统的输出功率逐渐趋于前段时间t的整车需求总功率平均值,动力电池的SOC就会控制在一个小范围高效区间内运行,不仅提高动力电池寿命和使用效率,而且燃料电池系统输出功率变化缓慢,变化区间相对较小,同时减少燃料电池系统启停次数,进而进一步延长燃料电池寿命。通过对燃料电池系统功率与动力电池功率的合理分配,在不影响燃料电池系统寿命的前提下,能够提高动力电池寿命和使用效率。
Vehicle-mounted fuel cell energy management method based on average value
一种基于平均值的车载燃料电池能量管理方法
2021-06-18
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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