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Dual-clutch transmission and vehicle

A dual-clutch transmission and clutch technology, which is applied to vehicle parts, vehicle gearboxes, gear transmissions, etc., can solve the problems of complex shifting mechanism and control unit, limited reverse gear ratio, large volume and weight, etc., and achieve gear shifting The mechanism and control unit are simple, the effect of increasing the reverse gear ratio and reducing the volume and weight

Active Publication Date: 2020-09-04
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, for the eight-speed dual-clutch transmission, most of the eight-speed dual-clutch transmissions on the existing market have 5 gear surfaces, the volume and weight are large, the cost is high, and most of them use a single forward gear to realize the reverse gear. , the reverse gear ratio is limited by the center distance, and the speed ratio is small
In addition, the synchronizer arrangement used in the existing eight-speed dual-clutch transmission, the gear shift mechanism and the control unit are relatively complicated, which indirectly leads to an increase in the volume, weight and cost of the transmission.

Method used

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  • Dual-clutch transmission and vehicle
  • Dual-clutch transmission and vehicle
  • Dual-clutch transmission and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment relates to a dual-clutch transmission, such as figure 1 As shown in , it generally includes a clutch with a first clutch unit 8 and a second clutch unit 6, a first input shaft 20 connected to the first clutch unit 8 in the clutch, and a first input shaft 20 connected to the second clutch unit 6 The second input shaft 5. The clutch is connected to an external power source, and the power source is generally an engine on an ordinary fuel vehicle, or an electric motor on an electric vehicle, or it can also be a power structure composed of an engine and an electric motor on a hybrid vehicle.

[0032] In addition to the above clutch and two input shafts, the transmission of this embodiment also includes a first output shaft 21 and a second output shaft 19 arranged parallel to the first input shaft 20 and the second input shaft 5 . At the same time, the rotation arrangement of each input shaft and output shaft in the transmission can refer to the relevant stru...

Embodiment 2

[0062] This embodiment relates to a dual-clutch transmission, the structure of which is substantially the same as the transmission in Embodiment 1, the difference is that image 3 As shown in , the four-reverse synchronizer 23 located between the fourth-speed driven gear 24 and the reverse-speed driven gear 7 on the first output shaft 21 of the transmission of this embodiment does not constitute two gears respectively. The connection between the driven gear and the first output shaft 21 can constitute the connection between the fourth speed driven gear 24 and the first output shaft 21 and the connection between the fourth speed driven gear 24 and the reverse driven gear 7 respectively. connection between. And at this time, in order to facilitate the arrangement of synchronizers and save space, the fourth reverse gear synchronizer 23 in this embodiment is also arranged outside the fourth gear driven gear 24 .

[0063] Corresponding to the different structures of the four-rever...

Embodiment 3

[0067] This embodiment relates to a vehicle, which is provided with the dual-clutch transmission as described in Embodiment 1 or Embodiment 2. The structure and specific manipulation of the transmission in the vehicle of this embodiment can refer to the description in Embodiment 1 or Embodiment 2, and the vehicle of this embodiment can achieve eight gears by using the dual-clutch transmission of Embodiment 1 or Embodiment 2. On the basis of automatic transmission, the weight and volume of the transmission can be reduced, the cost of the transmission can be reduced, and the reverse gear ratio can be increased, thus having good practicability.

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PUM

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Abstract

The invention provides a dual-clutch transmission and a vehicle. The dual-clutch transmission comprises a clutch, a first input shaft, a second input shaft, a first output shaft and a second output shaft. The clutch comprises a first clutch unit and a second clutch unit. The second input shaft is arranged on the first input shaft in a hollow sleeving mode. Gear driving gears are connected to the first input shaft, and gear driving gears, an integrated gear driving gear and a first one-way synchronizer are arranged on the second input shaft. Gear driven gears and gear synchronizers are arrangedon the two output shafts correspondingly. The integrated gear driving gear is connected with one of the gear driven gears on each output shaft in a meshing mode, and the corresponding gear driven gear, connected with the integrated gear driving gear in a meshing mode, of the second output shaft is selectively connected with the adjacent other one gear driven gear in a coupling mode through a second one-way synchronizer. According to the dual-clutch transmission, the number of the gears can be reduced, the size and the weight of the transmission can be reduced, and the convenience can be provided for carrying operation of the transmission on the finished vehicle.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions, in particular to a dual-clutch transmission. The invention also relates to a vehicle provided with the dual clutch transmission. Background technique [0002] With the development of vehicle transmission technology, as an important form of automatic transmission, dual-clutch transmissions are used more and more. Currently, dual-clutch transmissions on the market mainly include six-speed dual-clutch transmissions, seven-speed dual-clutch transmissions and eight-speed dual-clutch transmissions. For a dual-clutch transmission, the more gears there are, the more variable speed ranges the transmission has, which in turn can bring better power and fuel economy. [0003] Among them, for the eight-speed dual-clutch transmission, most of the eight-speed dual-clutch transmissions on the existing market have 5 gear surfaces, the volume and weight are large, the cost is high, and most of the...

Claims

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Application Information

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IPC IPC(8): F16H3/32F16H57/023
CPCF16H3/32F16H57/023F16H2200/006F16H2200/0086F16H2200/2046
Inventor 李亮吴茂柱匡成成史博文刘航
Owner GREAT WALL MOTOR CO LTD