The invention discloses a torque distribution energy-saving control method for a dual-motor-driven electric vehicle based on differential dynamic programming, and belongs to the field of electric vehicle driving control. According to the method, a vehicle longitudinal dynamics model and a motor energy consumption model are established, a differential dynamic programming algorithm is utilized, torque distribution of the double-motor-driven electric vehicle under different working conditions is optimized, and therefore the purposes of minimizing energy consumption and improving the overall system efficiency are achieved. Specifically, the vehicle longitudinal dynamics model is used for describing the total driving force needed by the vehicle in the driving process, and the motor energy consumption model is used for calculating the efficiency and energy consumption of the front axle motor and the rear axle motor based on a motor efficiency MAP. On the basis, the differential dynamic programming algorithm dynamically adjusts the motor torque distribution coefficient to balance the dynamic property and economical efficiency of the vehicle, so that a real-time and efficient control strategy is achieved, and the energy-saving requirement of the vehicle under the complex working condition is met. According to the method, the energy consumption of the dual-motor-driven electric vehicle is effectively reduced.
本发明公开了一种基于微分动态规划的双电机驱动电动车转矩分配节能控制方法,属于电动车驱动控制领域。该方法通过建立车辆纵向动力学模型和电机能耗模型,利用微分动态规划算法,优化双电机驱动电动车在不同工况下的转矩分配,以实现最小化能耗和提高整体系统效率的目的。具体来说,车辆纵向动力学模型用于描述车辆在行驶过程中所需的总驱动力,而电机能耗模型基于电机效率MAP图,计算前轴和后轴电机的效率和能耗。在此基础上,微分动态规划算法通过动态调整电机转矩分配系数,平衡车辆的动力性与经济性,从而实现实时、高效的控制策略,满足车辆在复杂工况下的节能要求。本发明方法有效降低了双电机驱动电动车的能耗。
Differential dynamic programming-based torque distribution energy-saving control method for dual-motor-driven electric vehicle
一种基于微分动态规划的双电机驱动电动车转矩分配节能控制方法
2025-02-14
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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