The invention provides a gear shifting control method and device for a double-electric-drive-axle pure-electricity commercial vehicle, and belongs to the technical field of electric automobiles. The method comprises the steps that the whole vehicle power, a driving map and front vehicle data currently required by a driver are obtained; under the conditions that the power of the whole vehicle is smaller than a target power threshold value, the gradient of uphill and downhill in a driving map is smaller than a first target gradient threshold value, and it is determined that no obstacle exists in front of the vehicle on the basis of front vehicle data, one drive axle in double electric drive axles is controlled to be in a neutral gear, and a transmission chain between the double electric drive axles is controlled to be disconnected; the other drive axle is controlled for driving and energy recovery; and under the condition that it is determined that an upslope exists in front of the vehicle based on the driving map and the gradient of the upslope is larger than a second target gradient threshold value, before the vehicle upslopes, the drive axle engaged in the neutral gear is controlled to be engaged in the first target gear. According to the invention, the purpose of reducing the energy consumption of the vehicle under the condition that the power response of the vehicle is not influenced can be achieved.

    本发明提供一种双电驱桥纯电商用车的换挡控制方法及装置,属于电动汽车技术领域,该方法包括:获取驾驶员当前需求的整车功率、行车地图以及前方车辆数据;在整车功率小于目标功率阈值,行车地图中上下坡的坡度小于第一目标坡度阈值,且基于前方车辆数据确定本车前方无阻碍车辆行驶的情况下,控制双电驱桥中的一根驱动桥挂入空挡,并控制双电驱桥之间的传动链断开,且控制另一根驱动桥进行驱动和能量回收;在基于行车地图确定本车前方有上坡且上坡的坡度大于第二目标坡度阈值的情况下,在本车上坡前,控制已挂入空挡的驱动桥挂入第一目标挡位。本发明可以实现在不对车辆动力响应造成影响的情况下降低车辆的能量消耗的目的。


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    Title :

    Gear shifting control method and device for double-electric-drive-axle pure-electric commercial vehicle


    Additional title:

    双电驱桥纯电商用车的换挡控制方法及装置


    Contributors:
    PENG WENJUN (author) / LI CHUNDONG (author) / ZHAO FENG (author) / JIN BENCHANG (author) / MA BIAO (author) / ZHANG QIWEI (author) / YANG XIAOBO (author) / GONG JINGYI (author) / XIANG YONG (author)

    Publication date :

    2025-01-03


    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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