The invention discloses an optimization method of a power distribution strategy model of a hybrid electric vehicle, which provides a power distribution model with variable parameters on the basis of a power distribution strategy taking required power and battery SOC as variables, and adopts the variable parameters to control the output power of an engine and the charging and discharging power of a battery in a partial operation mode. Therefore, the power distribution of the engine and the battery in the current state is determined. According to the power distribution strategy model, the energy consumption level of the vehicle under a certain working condition can be obtained through simulation software; furthermore, the output power of the engine and the power battery in the series connection mode is changed by modifying the adjustable parameters of the strategy model, so that the power distribution proportion is changed, multiple times of iterative optimization are conducted through simulation under different parameters, and finally the optimal vehicle energy consumption and model parameters are obtained.
本发明公开了一种混合动力汽车的功率分配策略模型的优化方法,在以需求功率、电池SOC为变量的功率分配策略基础上,提出了带有可变参数的功率分配模型,在部分运行模式下采用可变参数控制发动机的输出功率与电池的充放电功率,从而确定当前状态下的发动机与电池的功率分配。根据该功率分配策略模型,可通过仿真软件得到车辆在某工况下的能耗水平;进一步,通过修改该策略模型的可调参数改变串联模式下发动机与动力电池的输出功率,从而改变功率分配比例,再通过不同参数下的仿真进行多次迭代寻优,最终得到最优的车辆能耗及模型参数。
Optimization method for power distribution strategy model of hybrid electric vehicle
一种混合动力汽车的功率分配策略模型的优化方法
2023-07-21
Patent
Elektronische Ressource
Chinesisch
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