The invention relates to a hybrid electric vehicle energy management method based on traffic information. The method comprises a traffic information data acquisition step, a driving condition information prediction step and a required power calculation and distribution step. Traffic information obtained by an intelligent traffic system is used in energy management of a hybrid electric vehicle, excellent distribution of power between different power sources is achieved, and fuel economy and tail gas emission performance of the vehicle are improved. Hybrid electric vehicle energy optimization control is carried out by adopting a layered structure design, vehicle demand power is more efficiently calculated, and excellent control is realized; future driving condition information of the vehicleis predicted by using a Markov chain algorithm based on a network connection environment so as to obtain the optimal required power of the vehicle; and a lower-layer controller based on a global dynamic programming algorithm is adopted to control a state of charge SOC and a state of energy SOE of a power battery within a preset reasonable range, and optimal control of vehicle energy management iscarried out.

    本发明涉及一种基于交通信息的混合动力汽车能量管理方法,包括交通信息数据获取步骤、驾驶工况信息预测步骤和需求功率计算及分配步骤,通过将智能交通系统获得的交通信息用在混合动力汽车的能量管理中,实现动力在不同动力源之间的优良分配,从而提高车辆的燃油经济性和尾气排放性能;采用分层结构设计进行混合动力汽车能量优化控制,更高效地计算车辆需求功率,实现优良控制;基于网联环境下,使用马尔科夫链算法预测汽车未来的驾驶工况信息,以获得车辆的最优需求功率;采用基于全局动态规划算法的下层控制器,将动力电池荷电状态SOC和能量状态SOE控制在预设合理范围内,进行车辆能量管理的最优控制。


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    Title :

    Hybrid electric vehicle energy management method based on traffic information


    Additional title:

    基于交通信息的混合动力汽车能量管理方法


    Contributors:
    YANG SHICHUN (author) / XIE HEHUI (author) / ZHANG JUNBING (author) / PENG ZHAOXIA (author) / LIU JIAN (author)

    Publication date :

    2020-09-04


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



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