The invention discloses a mode switching method and system of a hybrid vehicle and the hybrid vehicle, and relates to the technical field of vehicle control, and the method comprises the steps that a current electric quantity difference value is obtained according to the current battery electric quantity and the optimal battery electric quantity of the vehicle, and the current electric quantity difference value is compared with a preset difference value threshold value; when the current electric quantity difference value is not higher than a preset difference value threshold value, the actual motor torque is obtained according to the current required vehicle speed and the motor characteristic diagram; when the actual motor torque is larger than the wheel end required torque, the vehicle is determined to be in an EV mode; and when the actual motor torque is not larger than the wheel end demand torque, the vehicle is determined to be in the HEV mode. Since the decision of the EV/HEV mode can be jointly carried out according to the current electric quantity difference value and the current required vehicle speed, compared with the prior art, the decision process of the vehicle working mode is simplified, and timely decision response of the working mode in different requirement scenes is facilitated.

    本申请公开了一种混动车辆的模式切换方法、系统及混动车辆,涉及车辆控制技术领域,该方法包括:根据车辆的当前电池电量以及最优电池电量获得当前电量差值,并将当前电量差值与预设差值阈值进行对比;在当前电量差值不高于预设差值阈值时,根据当前需求车速以及电机特性图获得实际电机扭矩;在实际电机扭矩大于轮端需求扭矩时,确定车辆为EV模式;在实际电机扭矩不大于轮端需求扭矩时,确定车辆为HEV模式。由于本申请能够根据当前电量差值以及当前需求车速共同进行EV/HEV模式的决策,相较于现有技术,简化了车辆工作模式的决策过程,有利于在不同需求场景中实现工作模式的及时决策响应。


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    Title :

    Mode switching method and system of hybrid vehicle and hybrid vehicle


    Additional title:

    混动车辆的模式切换方法、系统及混动车辆


    Contributors:
    HUANG FENGQIN (author) / YAN JUN (author) / CHEN GEN (author) / LI XIANGWANG (author) / LIU CHAO (author)

    Publication date :

    2024-10-01


    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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