Two-gear transmission of electric vehicle and electric vehicle
A technology for transmissions and electric vehicles, applied in transmission boxes, transmissions, transmission parts, etc., can solve the problems of high cost and complex structure of two-speed transmissions, and achieve low cost, reduced risk of damage, and simple overall layout structure Effect
Pending Publication Date: 2022-05-17
HUAWEI DIGITAL POWER TECH CO LTD
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Problems solved by technology
[0004] The technical solution of the present application provides a two-speed transmission for an electric vehicle and the electric vehicle, so as to solve the technical problems of the complex structure and high cost of the two-speed transmission in the prior art
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[0046] The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application.
[0047] Firstly, the scenarios involved in the embodiment of the present application are introduced. figure 1 It is a schematic structural diagram of a two-speed transmission of an electric vehicle in the embodiment of the present application, refer to figure 1 As shown, the embodiment of the present application relates to a two-speed transmission of an electric vehicle, and the two-speed transmission includes an input shaft 1 and an intermediate shaft 4 . Wherein, the input shaft 1 is used to connect with the motor, and the input shaft 1 is provided with a first-gear input tooth 2 and a second-gear input tooth 3 . The intermediate shaft 4 is provided with a first-gear output tooth 5 and a second-gear output tooth 6 , the first-gear output tooth 5 can be in constant mesh with the f...
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The invention provides a two-gear transmission of an electric vehicle and the electric vehicle, and the two-gear transmission comprises an input shaft, an intermediate shaft, a first clutch and a second clutch. The input shaft is used for being connected with a motor, and a first-gear input tooth and a second-gear input tooth are arranged on the input shaft. A first-gear output tooth and a second-gear output tooth are arranged on the intermediate shaft, the first-gear output tooth can be normally meshed with the first-gear input tooth, and the second-gear output tooth can be normally meshed with the second-gear input tooth. The first clutch is arranged on the intermediate shaft and connected with the first-gear output gear and the intermediate shaft. And the second clutch is arranged on the intermediate shaft and is connected with the second-gear output gear and the intermediate shaft. According to the two-gear transmission, the first clutch and the second clutch are both arranged on the intermediate shaft, and the two-gear transmission is simple in overall arrangement structure and low in cost. Due to the fact that the rotating speed of the intermediate shaft is lower than that of the input shaft, the risk that the clutch is damaged due to the high rotating speed is reduced, the response time of the clutch is shortened, the dragging torque of the clutch is reduced, and the efficiency of the electric vehicle is improved.
Description
technical field [0001] The present application relates to the technical field of electric vehicles, in particular to a two-speed transmission of an electric vehicle and the electric vehicle. Background technique [0002] The transmission is an important part of the vehicle. With the development of electric vehicle technology, the transmission has also become an important component that affects the overall performance of the electric vehicle. [0003] Transmissions in the prior art include single-speed transmissions and two-speed transmissions. For single-speed transmissions, they can only find the best speed ratio within a limited speed range to achieve a balance between cost and efficiency, which will restrict the system efficiency of the vehicle. . If in order to achieve a higher vehicle speed, the speed ratio needs to be reduced, which will lead to a decrease in the torque density of the system and increase the cost of the motor. For the two-speed transmission, its stru...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16H3/091F16H61/04F16H61/26F16H57/02
CPCF16H3/091F16H61/04F16H61/26F16H57/02F16H2057/02086F16H2061/0474B60Y2200/91B60K2001/001F16H61/0059F16H2063/3093F16H63/18F16H63/08F16H2003/0818F16H3/089F16H2200/0021F16H2200/0034F16H3/10B60K1/00F16H37/0813F16H2057/02034F16H2057/02043
Inventor 钟虎胡雄王欢
Owner HUAWEI DIGITAL POWER TECH CO LTD