The invention discloses a novel control method for limiting overspeed of a dual-motor hybrid vehicle. The novel control method comprises the following steps: S1, calculating resistance power P resistance and resistance torque of the vehicle running at a constant speed on the flat ground at each vehicle speed according to vehicle information; s2, a first set vehicle speed V1 and a second set vehicle speed V2 are set in the VCU, a road speed limit value V3 and the real-time vehicle speed V of the vehicle are collected, and the VCU selects one of the following speed limit strategies according to different vehicle speeds: S21, if the current real-time vehicle speed V of the vehicle is larger than the first set vehicle speed V1 and the vehicle acceleration a is a positive value, the VCU starts a generator power generation mode to charge a battery; s22, if the current real-time vehicle speed V of the vehicle is larger than or equal to the second set vehicle speed V2, the maximum power P of the generator is used for charging the battery at the maximum power; and S23, if the current real-time vehicle speed V of the vehicle is larger than the road speed limit value V3, the driving power of the vehicle is reduced to 0. According to the invention, the problem of overspeed violation during driving of the hybrid vehicle on an expressway is solved.

    本发明公开了一种新型限制双电机混动车辆超速控制方法,S1,根据车辆信息计算出平地各车速下的车辆匀速行驶的阻力功率P阻力和阻力力矩;S2,VCU内设置第一设定车速V1和第二设定车速V2,采集道路限速值V3和车辆的实时车速V,VCU根据车速不同的选择以下其中一种限速策略:S21,若车辆当前实时车速V>第一设定车速V1,且车辆加速度a为正值,VCU启动发电机发电模式给电池充电;S22,若车辆当前实时车速V≥第二设定车速V2,以发电机最大功率P发电机最大给电池充电;S23,若车辆当前实时车速V>道路限速值V3,车辆驱动功率降为0。本发明解决了混动车辆高速道路行驶时出现的车辆行驶中超速违章的问题。


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    Title :

    Novel control method for limiting overspeed of dual-motor hybrid vehicle


    Additional title:

    一种新型限制双电机混动车辆超速控制方法


    Contributors:
    HU YONG (author) / YAO YINHUA (author) / SI HONGLU (author) / LIU DECAI (author) / WANG CHUAN (author) / CHEN YONG (author) / LIANG JUNMING (author) / YUAN XUN (author)

    Publication date :

    2023-06-23


    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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