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An eight-speed dual-clutch transmission

A dual clutch and transmission technology, applied in the field of vehicle transmission, can solve the problems of inability to arrange and increase the volume and weight, and achieve the effects of increasing fuel economy, compact structure and satisfying light weight.

Active Publication Date: 2021-05-28
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at this stage, multi-speed dual-clutch transmissions are mostly three-degree-of-freedom transmission mechanisms. As the number of required gears increases, the volume and weight increase significantly, making it impossible to arrange them on the car.

Method used

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  • An eight-speed dual-clutch transmission
  • An eight-speed dual-clutch transmission
  • An eight-speed dual-clutch transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] like Figure 1-10 As shown, the present invention provides an eight-speed dual-clutch transmission. Through the reasonable arrangement of gears and synchronizers, the transmission has a compact structure, the reusability of the gear mechanism is improved, and the design requirements of light weight and compactness can be met.

[0053] See attached figure 1 , the dual clutch transmission includes: an engine input end 100 , a clutch module 200 , a transmission module 300 , and an output end 400 .

[0054] The clutch module 200 includes: a first clutch 201 and a second clutch 202;

[0055] The transmission module 300 includes: a first gear 301, a second gear 302, a third gear 303, a fourth gear 304, a fifth gear 305, a sixth gear 306, a seventh gear 307, an eighth gear 308, and a ninth gear 309, tenth gear 310, eleventh gear 311, twelfth gear 312, thirteenth gear 313, fourteenth gear 314, idler gear 315, first synchronizer 316, second synchronizer 317, third synchronizer...

Embodiment 2

[0060] The eight-speed dual-clutch transmission has eight forward gears and one reverse, as follows:

[0061] see figure 2 , when the eight-speed dual-clutch transmission is in the first gear state, the first synchronizer 316, the third synchronizer 318 and the fourth synchronizer 319 work, the first synchronizer 316 engages to the right, and the third synchronizer 318 engages to the left, The fourth synchronizer 319 meshes to the right. After the engine power is input to the transmission module 300 through the engine input end 100 through the first clutch 201 and the first input shaft 320, it passes through the ninth gear 309, the tenth gear 310, and the fourth synchronizer in sequence. 319, the first intermediate shaft sleeve shaft 324, the sixth gear 306, the fifth gear 305, the first synchronizer 316, the second input shaft 321, the first gear 301, the second gear 302, the third synchronizer 318, the middle The shaft 323 , the fourteenth gear 314 and the thirteenth gear ...

Embodiment 3

[0075] Introduce the power shift process of the transmission:

[0076] Shift process from 1st to 2nd gear:

[0077] Before shifting, the transmission is in gear 1, the first clutch 201 is engaged, the first synchronizer 316 is engaged to the right, the third synchronizer 318 is engaged to the left, and the fourth synchronizer 319 is engaged to the right. The power flow is as follows: figure 2 shown. When shifting gears, there is no need to operate the synchronizer; during the shifting process, the first clutch 201 is disengaged, and the second clutch 202 is combined; The device 318 continues to work, the engine outputs power, and its power flow is as follows: image 3 shown.

[0078] 2nd gear to 3rd gear shifting process:

[0079] Before shifting, the transmission is in the 2nd gear state, the second clutch 202 is combined, and the third synchronizer 318 is engaged to the left, and its power flow is as follows: image 3 As shown; when shifting gears, pre-engage the third...

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Abstract

The invention provides an eight-speed dual-clutch transmission, which includes an engine input end, a clutch module, a transmission module and an output end; the clutch module includes a first clutch and a second clutch; the transmission module includes a first gear, a second gear, and a third gear , fourth gear, fifth gear, sixth gear, seventh gear, eighth gear, ninth gear, tenth gear, eleventh gear, twelfth gear, thirteenth gear, fourteenth gear, idler wheel, first synchronizer, second synchronizer, third synchronizer, fourth synchronizer, first input shaft, second input shaft, output shaft, intermediate shaft, first intermediate shaft sleeve shaft and second intermediate shaft sleeve axis. The transmission module of the present invention adopts 6 pairs of forward gear pairs and 1 pair of reverse gear pairs. By reusing the gear pairs, eight power shift gears are provided without increasing the gear pairs, and it includes a direct gear and a One overdrive.

Description

technical field [0001] The invention relates to a transmission, in particular to an eight-speed dual-clutch transmission, which belongs to the technical field of vehicle transmission. Background technique [0002] With the development of today's automobile industry, energy saving and emission reduction have become the main direction of design, and the design requirements for transmissions are becoming increasingly strict. Dual-clutch automatic transmissions with high transmission efficiency and simple structure have gradually become a development trend. The dual-clutch transmission combines the advantages of simple structure and high efficiency of the manual transmission with the advantages of power shifting of the automatic transmission. It uses two sets of clutches to replace the low-efficiency hydraulic torque converter, and achieves no backlash through the alternate work of the two sets of clutches. The effect of power shift not only makes the driving of the vehicle easi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/20F16H61/02F16H63/30
CPCF16H3/20F16H61/02F16H63/30F16H2200/006
Inventor 李学良杨树军王文锋韩斌穆俊宇
Owner YANSHAN UNIV
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