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.
TWO-SPEED TRANSMISSION OF ELECTRIC VEHICLE, AND ELECTRIC VEHICLE
ZWEIGANGGETRIEBE EINES ELEKTROFAHRZEUGS UND ELEKTROFAHRZEUG
TRANSMISSION À DEUX VITESSES D'UN VÉHICULE ÉLECTRIQUE ET VÉHICULE ÉLECTRIQUE
17.04.2024
Patent
Elektronische Ressource
Englisch