The invention discloses an intelligent energy management method for an electric vehicle, which comprises the following steps of: acquiring navigation information of a user, acquiring real-time vehicle information and real-time road condition information by adopting online map data to predict a driving condition, acquiring constraint information in a driving path by utilizing an Internet of Things technology, identifying travel characteristic parameters, and constructing a global driving condition. Obtaining a speed-time curve; formulating an upper-layer control strategy and a lower-layer control strategy based on the hierarchical energy management strategy; inputting the navigation information and the speed-time curve into an upper-layer control strategy, optimizing the target temperatures of the motor and the battery from the perspective of global energy minimization by using a dynamic programming algorithm, and determining the target control temperatures of the motor and the battery; energy distribution is subjected to optimization control through a random model prediction algorithm, real-time online adjustment of target control temperatures of a motor and a battery is achieved through information fed back to an upper-layer control strategy through a lower-layer control strategy, and intelligent energy management of the electric vehicle is completed.

    本发明公开了一种电动汽车智能能量管理方法,包括:获取用户的导航信息,采用在线地图数据获取实时车辆信息和实时路况信息预测行驶工况,利用智联网技术获取行驶路径中的约束信息,识别出行特征参数,构建全局行驶工况,得到速度时间曲线;基于分层能量管理策略制定上层控制策略和下层控制策略;将导航信息及速度时间曲线输入到上层控制策略中,利用动态规划算法从全局能量最小化角度出发对电机和电池的目标温度进行优化,确定电机和电池的目标控制温度;利用随机模型预测算法对能量分配进行优化控制,通过下层控制策略反馈给上层控制策略的信息实现电机和电池目标控制温度的实时在线调整,完成电动汽车智能能量管理。


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    Title :

    Intelligent energy management method for electric vehicle


    Additional title:

    一种电动汽车智能能量管理方法


    Contributors:
    SUN WEIYI (author) / CAI MEINAN (author) / WANG FENGJIAN (author)

    Publication date :

    2024-05-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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