The invention discloses a hybrid vehicle multi-cost energy management strategy construction method in the field of new energy intelligent utilization, and the method is composed of a driver module, a hierarchical cost function module, an ECMS adjustment module, a hybrid power source module and an SOC prediction module. Driving comfort, fuel economy and mode switching cost are coordinated and considered through a hierarchical cost function, discomfort loss caused by transition of a speed chain in the driving process is optimized through the driving comfort cost, and a smoother vehicle speed transition sequence is formed; the ECMS basic principle is applied to the fuel economy cost, the equivalent fuel consumption value is optimized and managed according to the double-energy-source output power obtained in real time, the mode switching cost converts the energy loss during switching of different gears into a mode switching cost model, global energy management better conforms to the actual road operation condition, and the energy efficiency is improved. And the optimal total cost problem is solved through a PMP principle, so that the driving comfort and the fuel economy of the hybrid electric vehicle are effectively improved.
本发明公开新能源智能化利用领域中的一种混合动力车辆多成本能量管理策略构造方法,由驾驶员模块、分层成本函数模块、ECMS调节模块、混合动力源模块、SOC预测模块共同构成,通过分层成本函数协调兼顾驾驶舒适性、燃油经济性和模式切换成本,驾驶舒适性成本对行驶过程中速度链的过渡造成的不舒适损失进行优化,形成更加平缓的车速过渡序列;燃油经济性成本应用了ECMS基本原理,根据实时得到的双能量源输出功率对等效油耗值进行优化管理,模式切换成本将不同挡位切换时的能量损失转化为模式切换成本模型,使全局能量管理更加符合实际道路运行状况,最优总成本问题通过PMP原理进行求解,从而有效提高混合动力汽车的驾驶舒适性和燃油经济性。
Multi-cost energy management strategy construction method for hybrid vehicle
一种混合动力车辆多成本能量管理策略构造方法
06.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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