Double clutch automatic speed transmission

A technology of automatic transmission and double clutch, which is applied in the direction of transmission, transmission parts, gear transmission, etc., can solve the problems of increasing the size, weight and price of the transmission mechanism, the number of transmission gears, and the difficulty of installing small cars, etc., to achieve saving Effects of layout space, compact structure, and reduction in the number of gears

Active Publication Date: 2009-05-06
CHONGQING TSINGSHAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of transmission mechanism has the following disadvantages: because the reverse gear adopts a reverse gear idler mechanism, the number of gears in the transmission is large, and the weight of the transmission is large; on the other hand, since the two wet clutches are respectively fixed on the two input shafts, One of the input shafts is tubular and fits over the other input shaft, which routes its gears beyond the end of the tubular shaft, an arrangement that increases the size, weight, and price of the variator, and is not easy to install in a small car

Method used

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  • Double clutch automatic speed transmission
  • Double clutch automatic speed transmission

Examples

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Embodiment 1

[0023] Embodiment 1: as figure 1 and figure 2 As shown, a dual-clutch automatic transmission includes an input shaft 31, an input shaft gear 1, a first countershaft 6, a second countershaft 8, an intermediate shaft 7, and a power output device, which are fixed on the first countershaft 6 The first clutch 2, the second clutch 3 fixed on the second secondary shaft 8, the power output device includes a differential 29, a planetary mechanism fixedly connected with the differential 29, the planetary mechanism Including sun gear 23, planetary gear 24, planetary input gear 22, ring gear 28 and planet carrier 25, a planet carrier brake 27 is connected between the planet carrier 25 and the housing of the transmission, and between the ring gear 28 The planet carrier clutch 26 is also connected between them; the planetary input gear 22 meshes with the driven gear on the intermediate shaft 7 and is fixed with the sun gear 23, and the ring gear 28 is fixed with the differential 29; The ...

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PUM

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Abstract

The invention relates to a double-clutch automatic speed changer, which comprises an input shaft (31), an input shaft gear (1), a first auxiliary shaft (6), a second auxiliary shaft (8), an intermediate shaft (7), a power output device, at least one odd-shift gear pair, at least one even-shift gear pair, a first clutch (2) fixed on the first auxiliary shaft (6) and a second clutch (3) fixed on the second auxiliary shaft (8). The speed changer is characterized in that the power output device comprises a differential (29) and a planetary mechanism fixedly connected with the differential (29). The speed changer has the advantages that the speed changer is small in gear quantity, small in axial length, light in weight and easier to arrange and use in small-size front-wheel driven cars.

Description

technical field [0001] The invention relates to a vehicle transmission, in particular to a dual-clutch automatic transmission. Background technique [0002] The existing dual-clutch automatic transmission includes two clutches, a shift synchronizer, a shift control system, an electronic control system TCU and a six-gear transmission. The two wet clutches are respectively fixed on two countershafts. The driving gears of the first and even gears are respectively driven and connected with two wet clutches, and the two clutches alternately transmit working power to realize the switching between the gears. However, this kind of transmission mechanism has the following disadvantages: because the reverse gear adopts a reverse gear idler mechanism, the number of gears in the transmission is large, and the weight of the transmission is large; on the other hand, since the two wet clutches are respectively fixed on the two input shafts, One of the input shafts is tubular and fits over...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/04F16H3/10F16H3/12F16H57/10
CPCF16H3/006F16H37/046
Inventor 彭飞吕兵刘冲周勇游同生斯红路胡敏楚迎庆
Owner CHONGQING TSINGSHAN IND
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