Seven-forward-gear double-clutch automatic gearbox transmission device

A technology of automatic transmission and double clutch, applied in the direction of multi-ratio transmission, transmission, gear transmission, etc., can solve the problem that the cost of the transmission mechanism cannot be effectively controlled, so as to save axial space and increase the degree of overlap , The effect of improving the shifting performance

Pending Publication Date: 2022-03-04
CHONGQING TSINGSHAN IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a drive mechanism for a shift fork of a transmission that saves internal space. The present invention solves the problem of either setting up a separate reverse gear shaft in a traditional DCT gearbox, or welding the reverse gear idler gear to the gear gear. The cost of the transmission mechanism in both ways cannot be effectively controlled

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  • Seven-forward-gear double-clutch automatic gearbox transmission device

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Embodiment Construction

[0016] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are some, but not all, of the embodiments of the invention. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be simply construed as a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention. Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:

[0017] In the description of the present invention, it should ...

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Abstract

The invention discloses a seven-forward-gear double-clutch automatic gearbox transmission device. A first-gear driving gear is meshed with a first-gear driven gear; the second-gear driving gear is meshed with the second-gear driven gear; the third-gear driving gear is meshed with the third-gear driven gear; the fourth-gear and sixth-gear driving gear is meshed with the fourth-gear driven gear and the sixth-gear driven gear; the fifth-seventh-gear driving gear is meshed with a fifth-gear driven gear and a seventh-gear driven gear; the reverse gear is meshed with the second-gear driven gear; and the upper output shaft normally engaged gear and the lower output shaft normally engaged gear are engaged with the main reduction gear. The transmission mechanism solves the problem that the cost of a transmission mechanism in two modes cannot be effectively controlled because a traditional DCT gearbox is provided with an independent reverse gear shaft or a reverse gear idle wheel is welded to a gear.

Description

technical field [0001] The invention belongs to the technical field of automobile transmissions, and in particular relates to a transmission device of a seven-forward double-clutch transmission. Background technique [0002] With the increasing improvement of people's living standards, automatic transmission vehicles have ushered in rapid development. The traditional AT transmission has strong and reliable power and stable shifting, but the cost is high and the overall efficiency is low; CVT transmissions are connected by steel belts, which can achieve no The step-by-step transmission eliminates the shifting shock, and the cost is low, but the power is obviously insufficient; while the DCT transmission adopts gear transmission, which has the advantages of high transmission efficiency, stable power transmission, good shifting comfort, and low cost. [0003] The traditional 6DCT has a compact structure, but due to the large difference between the gear ratios of each gear, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/085
CPCF16H3/085F16H3/006F16H2200/0056
Inventor 徐迪周召祥杨新涛刘宁马连张旭王文熠何江
Owner CHONGQING TSINGSHAN IND
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