The invention relates to the technical field of new energy vehicles, in particular to a driving and braking control method for a front and rear axle dual-motor driving pure electric commercial vehicle. Comprising the following steps: acquiring historical working condition data of the dual-motor pure electric vehicle; establishing a vehicle speed prediction model; setting network parameters of the vehicle speed prediction model, and training the prediction model; adjusting network parameters according to the predicted precision to obtain a vehicle speed prediction model; establishing a dual-motor pure electric vehicle model; establishing an improved DDPG proxy model based on a truncated triple Q network and learning rate scheduling; setting a state, an action and a reward function of the improved DDPG proxy model; training a control energy management model based on the training data set; validating the energy management model using the data set; and the trained model is embedded into a whole vehicle controller, and according to the current vehicle speed, the battery electric quantity SOC and the battery health state SOH, the distribution coefficient of the torque of the front axle and the rear axle of the vehicle is calculated in real time to control the operation of the vehicle.
本发明涉及新能源汽车技术领域,涉及一种前后轴双电机驱动纯电动商用车驱制动控制方法。包括以下步骤:获取双电机纯电动汽车历史工况数据;建立车速预测模型;设置车速预测模型的网络参数,训练预测模型;根据预测的精度调整网络参数得到车速预测模型;建立双电机纯电动汽车模型;建立基于截断三重Q网络和学习率调度的改进DDPG代理模型;设置改进DDPG代理模型的状态、动作和奖励函数;基于训练数据集,训练控制能量管理模型;使用数据集验证能量管理模型;将训练好的模型嵌入整车控制器中,根据当前车速、电池电量SOC、电池健康状态SOH,对车辆前后轴扭矩的分配系数进行实时计算控制车辆运行。
Driving and braking control method for front and rear axle dual-motor driving pure electric commercial vehicle
一种前后轴双电机驱动纯电动商用车驱制动控制方法
2025-02-25
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Driving torque distribution method and system of front-rear-axle dual-motor driving electric vehicle
European Patent Office | 2020
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