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Vertical seven-speed dual-clutch gearbox

A dual-clutch and clutch technology, which is applied to vehicle gearboxes, transmissions, transmission parts, etc., can solve the problem of low utilization rate of synchronizer capacity, achieve simple structure, reduce mold costs, and reduce maximum torque.

Active Publication Date: 2019-06-18
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In ZF’s seven-speed dual-clutch solution (US 7267022 B2), a separate synchronizer is provided for the reverse gear, and the 4th gear and the 1st gear share a synchronizer. Due to the large difference in rated torque between the 4th gear and the 1st gear, the The utilization rate of the synchronizer capacity is not high, and the selection can only be made according to the rated torque of the first gear

Method used

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  • Vertical seven-speed dual-clutch gearbox
  • Vertical seven-speed dual-clutch gearbox
  • Vertical seven-speed dual-clutch gearbox

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Embodiment Construction

[0030] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] See attached figure 1 , a vertical seven-speed dual-clutch gearbox, which includes: the first clutch 2, the second clutch 3 arranged coaxially, four synchronizers and four shafting gears;

[0032] The four synchronizers include: a first synchronizer 8, a second synchronizer 14, a third synchronizer 11 and a fourth synchronizer 20;

[0033] The four shafting gears include: a first input shaft 23, a second input shaft 24, an intermediate shaft 25 and an output shaft 27; the first clutch 2 and the third gear 6 are arranged on the second input shaft 24; the second clutch 3 and The first gear 4 is arranged on the first input shaft 23; the second gear 5, the third synchronizer 11, the eighth gear 13, the tenth gear 16, the eleventh gear 19, and the thirteenth gear 22 are arranged on the intermediate shaft 25 Above; the fourth gear 7 and the sixth gear 1...

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Abstract

The invention belongs to the technical field of power transmission, and particularly relates to a seven-speed double-clutch transmission. A longitudinal seven-speed double-clutch transmission comprises a first clutch and a second clutch which are coaxially arranged, four synchronizers and four shafting gears, wherein a first synchronizer, a second synchronizer and a fourth synchronizer are arranged on an output shaft, and a third synchronizer is arranged on a middle shaft; and the first synchronizer realizes the engagement or disengagement of a third gear, a fifth gear and the output shaft, the third synchronizer realizes the engagement or disengagement of a fourth gear, a sixth gear and the output shaft, the second synchronizer realizes the engagement or disengagement of a seventh gear, a ninth gear and the output shaft, and the fourth synchronizer realizes the engagement or disengagement of a fourteenth gear, a twelfth gear and the output shaft. According to the longitudinal seven-speed double-clutch transmission disclosed by the invention, the auxiliary support of the middle shaft is simplified, and the utilization rate of the capacity of each synchronizer is increased; and the longitudinal seven-speed double-clutch transmission is suitable for being used for a light truck or a passenger car.

Description

technical field [0001] The invention belongs to the technical field of power transmission, in particular to a seven-speed dual-clutch gearbox. Background technique [0002] Dual-clutch gearbox has the advantages of simple structure and process, low cost and high transmission efficiency, and has been widely used in the field of passenger vehicles. In the field of commercial vehicles, especially passenger cars, light trucks, neutral trucks, and heavy trucks, manual transmissions are widely used in my country. Due to their advantages, dual-clutch transmissions will achieve greater development in these vehicle fields. [0003] Volvo has released a 12-speed I-shift dual-clutch gearbox for heavy-duty trucks. It adopts a main and auxiliary box structure. The main box has 6 forward gears and 1 reverse gear, and the auxiliary box has 2 gears. Compared with the manual transmission, the dual-clutch transmission has a simple structure, high transmission efficiency, and has an automatic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/091F16H3/12F16H57/021F16H57/023
CPCF16H3/091F16H3/12F16H57/021F16H57/023F16H2003/0826F16H2057/0206F16H2200/0056F16H2200/0082
Inventor 彭增雄胡纪滨魏超李学良孙钦鹏
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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