Eight-speed automatic transmission and vehicle
An automatic transmission, eight-speed technology, applied in vehicle components, vehicle gearboxes, transmission elements, etc., can solve the problems of low transmission efficiency of automatic transmissions, and achieve the effect of saving layout space, reducing weight and reducing costs
Pending Publication Date: 2021-11-19
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide an eight-speed automatic transmission and a vehicle for the problem of low transmission efficiency of the existing automatic transmission
Method used
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[0052] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0053] Such as figure 1 As shown, the eight-speed automatic transmission provided by the embodiment of the present invention includes a first power source 101, a first input shaft 2, a second input shaft 3, a first output shaft 4 and a second output shaft 5, and the second input shaft 3 Rotatably sleeved on the first input shaft 2, the first input shaft 2 is connected to the first power source 101 through the first clutch 61, and the second input shaft 3 is connected to the first power source 101 through the second clutch 62;
[0054] A section of the first input shaft ...
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The invention discloses an eight-speed automatic transmission and a vehicle. The eight-speed automatic transmission comprises a first power source, two output shafts and two input shafts, wherein the two input shafts are connected to the first power source through clutches respectively; the first input shaft is provided with a first-gear driving gear, a fifth-gear driving gear and a seventh-gear driving gear, the second input shaft is provided with a second-gear driving gear, a fourth-gear driving gear and a sixth-gear driving gear, the first output shaft is provided with a fourth-gear driven gear, a fifth-gear driven gear and a first-gear driven gear, the second output shaft is provided with a second-gear driven gear, a sixth-gear driven gear and a seventh-gear driven gear, and the driven gears output power to the corresponding output shafts through corresponding synchronizers; and power output by the first power source is sequentially transmitted to the second output shaft in a winding mode through the seventh-gear gear, the sixth-gear gear and the second-gear gear to achieve third-gear power output, and power output by the first power source is sequentially transmitted to the second output shaft in a winding mode through the fifth-gear gear, the fourth-gear gear and the sixth-gear gear to achieve eighth-gear power output. Three-gear and eight-gear gears are omitted, three-gear and eight-gear transmission is achieved through bypassing, the speed ratio range is wide, the transmission efficiency is high, the axial size is short, the number of parts is small, the weight is reduced, and the cost is reduced.
Description
technical field [0001] The invention belongs to the field of new energy vehicles, in particular to an eight-speed automatic transmission and a vehicle. Background technique [0002] The dual-clutch automatic transmission integrates two gearboxes and two clutches into one transmission. Two rotatably sleeved input shafts are respectively connected to one of the clutches, and the two input shafts transmit two transmissions respectively. The power of the gearbox speed group completes the shift program by automatically switching between the two clutches, so the power shift during the shift process can be realized, that is, the power is not interrupted during the shift process, which overcomes the AMT (Automated Mechanical Transmission, electric In the process of shifting, the power of the engine can always be transmitted to the wheels, and the shifting is fast and smooth, which not only ensures the acceleration of the vehicle, but also because the vehicle no longer generates shoc...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16H3/085B60K6/547B60K6/36
CPCF16H3/006F16H3/085F16H3/001B60K6/547B60K6/36F16H2200/006F16H2200/2053
Inventor 龙雨诗凌晓明周友刘学武邰昌宁马粉粉
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD