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Automatic transmission and vehicles with same

A technology of automatic transmission and brake, which is applied in the direction of transmission, gear transmission, belt/chain/gear, etc. It can solve the problems of complex structure of AT gearbox, poor fuel economy of engine, narrow range of transmission ratio, etc., so as to facilitate mass production Mass production, wide transmission ratio range and high transmission efficiency

Active Publication Date: 2013-09-11
GREAT WALL MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional automobile gearboxes are generally divided into two types: manual (MT) and automatic (AT). MT has the advantages of high transmission efficiency and strong operation feeling, but for urban working conditions, especially in the case of road congestion, frequent transmission is required. Manual shifting can easily lead to driver fatigue and accidents such as rear-end collisions
[0003] The AT gearbox can realize automatic shifting function, but the structure of the AT gearbox is complicated, the cost is high, and it is generally five-speed or six-speed, and the transmission ratio range is relatively narrow, resulting in poor fuel economy of the engine

Method used

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  • Automatic transmission and vehicles with same

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention discloses an automatic transmission and vehicles with the same. The automatic transmission comprises a shell, an input shaft, a single-row single-stage planetary gear train, a Ravigneaux planetary gear train, a big sun wheel brake and a braking device. The single-row single-stage planetary gear train comprises a sun wheel, a planet wheel, a planet carrier and an annular gear, wherein the sun wheel is fixed on the shell, the annular gear rotates along the input shaft, and a first clutch is arranged between the annular gear and the planet carrier. The Ravigneaux planetary gear train comprises a big sun wheel, a small sun wheel, a long planet wheel, a short planet wheel, a shared planet carrier and a shared annular gear, a second clutch is arranged between the planet carrier and the small sun wheel, a third clutch is arranged between the planet carrier and the shared planet carrier, and a reverse gear clutch is arranged between the input shaft and the big sun wheel. The big sun wheel brake is used for braking the big sun wheel, and the braking device is used for braking the shared planet carrier. With the automatic transmission, eight-speed changing function is realized and transmission efficiency is high.

Description

technical field [0001] The invention relates to the technical field of automobile construction, in particular to an automatic transmission and a vehicle with the automatic transmission. Background technique [0002] Traditional automobile gearboxes are generally divided into two types: manual (MT) and automatic (AT). MT has the advantages of high transmission efficiency and strong operation feeling, but for urban working conditions, especially in the case of road congestion, frequent transmission is required. Manual shifting can easily lead to driver fatigue and accidents such as rear-end collisions. [0003] The AT gearbox can realize the automatic shift function, but the structure of the AT gearbox is complicated, the cost is high, and it is generally five-speed or six-speed, and the transmission ratio range is relatively narrow, resulting in poor fuel economy of the engine. Contents of the invention [0004] The present invention aims to solve at least one of the techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/66
Inventor 陈春明张晓东王伟霍思成
Owner GREAT WALL MOTOR CO LTD
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