The invention is suitable for the technical field of electric vehicle energy management, and provides a hybrid energy storage-based electric vehicle energy management method, which comprises the following steps of: outputting a battery power distribution factor lambda through a fuzzy control algorithm according to the running speed of an electric vehicle, the load demand power in the vehicle and the SOC (State of Charge) of a battery and a super capacitor; according to the method, a battery power distribution factor lambda is corrected in real time by using a non-dominated sorting genetic algorithm by taking the battery capacity attenuation degree and the hundred-kilometer operation cost as objective functions according to the SOC upper and lower limit range and the output power limit of the battery and the super capacitor as constraint conditions. Required power is reasonably distributed, and battery capacity attenuation is delayed.
本发明适用于电动汽车能量管理技术领域,提供了一种基于混合储能的电动汽车能量管理方法,根据电动汽车在行驶时的速度,车内负载需求功率,以及电池和超级电容SOC通过模糊控制算法输出电池功率分配因子λ,根据电池和超级电容SOC上下限范围和输出功率限制为约束条件,以电池容量衰减度和百公里运行成本为目标函数使用非支配排序遗传算法实时修正电池功率分配因子λ,本发明能够利用电池和超级电容两种储能单元的特点,合理分配需求功率,延缓电池容量衰减。
Electric vehicle energy management method based on hybrid energy storage
一种基于混合储能的电动汽车能量管理方法
2023-12-22
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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