A two-speed transmission gearbox of an electric vehicle is provided, including an input shaft (1), a countershaft (4), a first clutch (7), and a second clutch (8). The input shaft is configured to be connected to a motor, and a first-gear input tooth (2) and a second-gear input tooth (3) are disposed on the input shaft. A first-gear output tooth (5) and a second-gear output tooth (6) are disposed on the countershaft, the first-gear output tooth can be in constant mesh with the first-gear input tooth, and the second-gear output tooth can be in constant mesh with the second-gear input tooth. The first clutch is disposed on the countershaft, and connects the first-gear output tooth to the countershaft. The second clutch is disposed on the countershaft, and connects the second-gear output tooth to the countershaft. Both the first clutch and the second clutch in the two-speed transmission gearbox are disposed on the countershaft. Therefore, an overall arrangement structure of the two-speed transmission gearbox is simple, and costs are low. Because a rotation speed of the countershaft is lower than a rotation speed of the input shaft, a risk of damage caused by the clutch due to a high rotation speed is reduced, response time and drag torque of the clutch are reduced, and efficiency of the electric vehicle is improved. In addition, an electric vehicle including the two-speed transmission gearbox is further provided.


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    Title :

    TWO-SPEED TRANSMISSION OF ELECTRIC VEHICLE, AND ELECTRIC VEHICLE


    Additional title:

    ZWEIGANGGETRIEBE EINES ELEKTROFAHRZEUGS UND ELEKTROFAHRZEUG
    TRANSMISSION À DEUX VITESSES D'UN VÉHICULE ÉLECTRIQUE ET VÉHICULE ÉLECTRIQUE


    Contributors:
    ZHONG HU (author) / HU XIONG (author) / WANG HUAN (author)

    Publication date :

    2024-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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