The invention belongs to the technical field of automobile chassis suspensions. A rear driving system of an extended-range electric vehicle comprises a torsion beam assembly, a fuel tank, a watt connecting rod device, a transmission shaft and an electric driving system, wherein the torsion beam assembly comprises a middle cross beam located in the middle and trailing arms located at the two ends;and the fuel tank is arranged at the front part of the middle cross beam. The rear driving system of the extended-range electric vehicle is characterized in that the electric driving system comprisesa motor and a reduction gearbox, the transmission shaft is connected in the reduction gearbox in a penetrating manner, the two ends of the transmission shaft are arranged in wheel mounting seats of the two trailing arms, the motor is positioned at the rear part of the transmission shaft; the watt connecting rod device is arranged between the middle cross beam and the transmission shaft, and a pushrod left supporting lug and a push rod right supporting lug which correspond to the watt connecting rod device are arranged on the trailing arms. The rear driving system has the advantages of being reasonable in layout and high in space utilization rate, and a rear suspension system is simple in structure, high in stability, comfortable and durable.

    本发明属于汽车底盘悬架技术领域。一种增程式电动汽车后驱动系统,包括扭力梁总成、燃油箱、瓦特连杆装置、传动轴和电驱动系统,所述扭力梁总成包括位于中部的中横梁和位于两端部的拖曳臂,所述燃油箱布设在所述中横梁前部,其特征在于:所述电驱动系统包括电动机和减速箱,所述传动轴穿接在所述减速箱中,所述传动轴的两端设置在两所述拖曳臂的车轮安装座中,所述电动机位于所述传动轴的后部;所述瓦特连杆装置布设在所述中横梁与所述传动轴之间,所述拖曳臂上设置有与所述瓦特连杆装置对应的推杆左支耳和推杆右支耳。本申请具有布局合理、空间利用率高,同时具有后悬挂系统结构简单、稳定性强、舒适耐用的优点。


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    Title :

    Rear driving system of extended-range electric vehicle


    Additional title:

    增程式电动汽车后驱动系统


    Contributors:
    HAN QUNSHAN (author) / MA YANCHANG (author) / FAN LI (author) / SONG ZHAOMING (author)

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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