The invention discloses an electric vehicle energy management method and system based on a fuzzy logic controller, and the method comprises the steps: selecting a topological structure of an electric vehicle hybrid energy storage system, and building a battery model and a super-capacitor model; based on the battery model and the super-capacitor model, considering dynamic factors and actual driving conditions, and establishing an electric vehicle dynamic model; based on the dynamic model of the electric vehicle, introducing a fuzzy logic controller, and formulating a fuzzy logic controller rule according to different dynamic adjustment parameters of road conditions and vehicle types; obtaining an output power distribution ratio through a fuzzy control energy management strategy based on a fuzzy logic controller rule; based on the output power distribution ratio, power distribution between the super capacitor and the battery is adjusted, and energy management of the electric vehicle is achieved. The sustainable mileage of the vehicle is increased, and the overall performance of the electric vehicle power supply is improved.
本发明公开了一种基于模糊逻辑控制器的电动汽车能量管理方法及系统,包括:选取电动汽车混合储能系统拓扑结构,建立电池模型和超级电容模型;基于电池模型和超级电容模型,考虑动力学因素和实际行驶条件,建立电动汽车动态模型;基于电动汽车动态模型,引入模糊逻辑控制器,根据路况和车型的不同动态调整参数,制定模糊逻辑控制器规则;基于模糊逻辑控制器规则,通过模糊控制能量管理策略,获取输出功率分配比;基于输出功率分配比,调整超级电容和电池之间的功率分配,实现电动汽车能量管理。本发明提高车辆的可持续里程,提升了电动汽车电源的整体性能。
Electric vehicle energy management method and system based on fuzzy logic controller
一种基于模糊逻辑控制器的电动汽车能量管理方法及系统
2024-11-19
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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