The invention discloses an energy distribution method and device under a whole vehicle climbing working condition of a hydrogen fuel cell in the technical field of hydrogen fuel cell vehicles, and aims to solve the problems that in the prior art, reasonable power distribution cannot be carried out according to different climbing working conditions, and the output power of a power battery system is limited due to the fact that the temperature of a power battery rises too fast; and the power performance of the whole vehicle is insufficient. The method comprises the steps of calculating vehicle demand power; judging whether the climbing time of the whole vehicle is greater than the pulse current time of the power battery system or not, and obtaining the working mode of the whole vehicle to determine a distribution category; and executing an allocation strategy corresponding to the allocation category to complete energy management. According to the method, different climbing working conditions are divided into different distribution categories, and corresponding distribution strategies are executed, so that reasonable power distribution is performed on the hydrogen fuel cell system and the power cell system under different climbing working conditions, and the situation that the output power of the power cell system is limited due to the fact that the temperature of the power cell rises too fast is prevented; and the service life of the system is ensured.
本发明公开了氢燃料电池车辆技术领域的一种氢燃料电池整车爬坡工况下的能量分配方法及装置,旨在解决现有技术中无法针对不同的爬坡工况进行合理的功率分配,动力电池过快升温进而限制动力电池系统输出功率,整车动力性不足的问题。其包括计算整车需求功率;判断整车爬坡时间是否大于动力电池系统脉冲电流时间,并获取整车的工作模式,以确定分配类别;执行所述分配类别对应的分配策略,完成能量管理;本发明将不同的爬坡工况分为不同的分配类别,并执行对应的分配策略,从而对于不同的爬坡工况下的氢燃料电池系统以及动力电池系统进行合理的功率分配,防止动力电池过快升温进而限制动力电池系统输出功率,保证了系统的使用寿命。
Energy distribution method and device of hydrogen fuel cell under whole vehicle climbing working condition
一种氢燃料电池整车爬坡工况下的能量分配方法及装置
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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