The invention discloses a parallel hybrid electric vehicle layered energy management strategy based on real-time traffic flow prediction, which predicts and constructs global future driving conditions through real-time traffic information obtained by an intelligent traffic system, and transmits the real-time traffic information to a vehicle layered hybrid controller to solve the problem that traditional control depends on a fixed route and offline optimization. The speed, traffic flow and congestion degree in a traffic network within a period of time from the current moment to the past are aggregated into a traffic speed diagram as a reference of a global controller, and an optimal speed reference trajectory and a reference SOC trajectory are obtained through optimization; in the MPC module, an adaptive equivalent fuel consumption factor is used to make a real-time SOC track a reference SOC, and a speed reference trajectory is used as an MPC reference trajectory, so that engine and motor control information suitable for the current hybrid vehicle is obtained, and finally the vehicle motion model is used to assist inertial navigation positioning. The system has the advantages of good stability, good real-time performance and high energy efficiency.

    本发明公开了一种基于实时交通流预测的并联式混合动力汽车分层能量管理策略,通过智能交通系统获得的实时交通信息,预测和构建全局未来行车工况,传入车辆分层混动控制器,以解决传统控制依赖于固定路线和离线优化的问题。通过对当前时刻到过去一段时间内交通网络内的车速、车流、拥挤度聚合成为交通通行速度图,作为全局控制器的参考,经过最优化得到最优速度参考轨迹与参考SOC轨迹;在MPC模块中使用自适应等效燃油消耗因子来让实时SOC跟踪参考SOC,速度参考轨迹作为MPC参考轨迹,从而得到适应于当前混动车辆的发动机与电机控制信息,最后使用该车辆运动模型辅助惯性导航定位。具有稳定性好、实时性好、能源效率高的优点。


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    Title :

    Parallel hybrid electric vehicle layered energy management strategy based on real-time traffic flow prediction


    Additional title:

    一种基于实时交通流预测的并联式混合动力汽车分层能量管理策略


    Contributors:

    Publication date :

    2023-04-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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