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Automobile and transmission thereof

A technology of transmission and clutch, applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of complex AT gearbox structure, poor engine fuel economy, narrow transmission ratio range, etc., to improve fuel economy , Inheritance and good universality of parts and components, compact structure

Inactive Publication Date: 2013-07-10
GREAT WALL MOTOR CO LTD
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  • Summary
  • 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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  • Automobile and transmission thereof
  • Automobile and transmission thereof

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Embodiment Construction

[0023] 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.

[0024] 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 automobile and a transmission thereof. The transmission comprises a casing, an input shaft, a Ravigneaux's planetary gear train, a first single-row single-stage planetary gear train and a second single-row single-stage planetary gear train. The first single-row single-stage planetary gear train comprises a first sun wheel sleeved on the input shaft, a first planet wheel, a first planet carrier and a first inner gear ring. The Ravigneaux's planetary gear train comprises a large sun wheel, a small sun wheel, a long planet wheel, a short planet wheel, a planet carrier and an inner gear ring. The large sun wheel, the small sun wheel, the first inner gear ring, the planet carrier and the input shaft are connected respectively in separating mode. The second single-row single-stage planetary gear train comprises a second sun wheel sleeved on the input shaft, a second planet wheel, a second planet carrier and a second inner gear ring, and the second planet carrier is fixed on the planet carrier. A first brake is used for braking the large sun wheel, a second brake is used for braking the planet carrier, and a third brake is used for braking the second inner gear ring. The transmission achieves design of seven forward gears, is simple in structure and high in gear shifting efficiency.

Description

technical field [0001] The invention relates to the technical field of automobile construction, in particular to an automobile and a transmission thereof. 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 technical problems existing in the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/66
Inventor 王一博郑立朋陈晓峰王超
Owner GREAT WALL MOTOR CO LTD
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