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Three-planet-row automatic transmission and vehicle

A technology of automatic transmission and planetary row, which is applied to vehicle components, vehicle gearboxes, transmission elements, etc., can solve problems such as unfavorable lightweight design of transmissions, increase in transmission components, and unfavorable structural compactness, etc. Structure, compact effect

Active Publication Date: 2018-06-22
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the Shengrui horizontal SR8AT-300 scheme includes four pairs of fixed-shaft constant mesh gears on the intermediate shaft, which increases the number of transmission components and is not conducive to the compact structure; Aisin's eight-speed TR-80SD scheme and Hyundai Power The Thai eight-speed A8L / TR1 schemes all adopt the Lavina structure, and the structure of the double planetary gear set appears, which makes the structure of the transmission too complicated, which is not conducive to the lightweight design of the transmission

Method used

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  • Three-planet-row automatic transmission and vehicle
  • Three-planet-row automatic transmission and vehicle
  • Three-planet-row automatic transmission and vehicle

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] Such as figure 1 As shown, a three-planetary automatic transmission according to an embodiment of the present invention is schematically shown, which includes an input member 5 (input shaft) and an output member 6 (output shaft), and the first planetary row arranged in sequence along the same axis of rotation 1. The second planetary row 2 and the third planetary row 3, the first clutch C1, the second clutch C2, the third clutch C3, the first brake B1, the second brake B2, and the third brake B3;

[0030] Wherein, the first planetary row 1 includes a first front sun gear 11, a first rear sun gear 12, a first ring gear 13, a first planet carrier 14, and a first plane...

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Abstract

The invention relates to the field of automobiles, and discloses an three-planet-row automatic transmission and a vehicle. The transmission comprises an input component, an output component, a first planet row, a second planet row, a third planet row, a first clutch, a second clutch, a third clutch, a first brake, a second brake and a third brake, wherein the input component is fixedly connected with a second sun gear, and the output component is fixedly connected with a third planet carrier; and a second planet carrier is fixedly connected with a third gear ring, a first gear ring is fixedlyconnected with the third planet carrier, and a third sun gear is fixed. According to the three-planet-row automatic transmission, the first brake is closed to brake a first rear sun gear, the second brake is closed to brake a first front sun gear, and the third brake is closed to simultaneously brake the first planet carrier and a second gear ring; and the first rear sun gear is connected with theinput component through the first clutch, the first planet carrier is connected with the second sun gear through the second clutch, and the first planet carrier is connected with the second gear ringthrough the third clutch.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a three-planetary automatic transmission and a vehicle. Background technique [0002] The gear train mechanism of the electronically controlled hydraulic transmission generally includes multiple planetary arrays, and the engine power is transmitted to the planetary gear transmission mechanism through the hydraulic torque converter for gear shifting and then output. The volume, weight, efficiency and carrying capacity of the automatic transmission are directly related to the layout of the planetary row structure. The more gears of the automatic transmission drive train, the lower the fuel consumption of the car and the better the economy. However, as the number of gears increases, the number of planetary rows and the number of operating clutches and brakes also increase, and it is even more difficult to achieve a design that satisfies the theoretical step ratio. [0003] At present, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/66
CPCF16H3/66F16H2200/006F16H2200/201F16H2200/2046F16H3/663F16H37/08F16H2200/2012F16H2200/2097F16H59/36F16H2200/0052F16H2200/0056
Inventor 凌晓明马粉粉邰昌宁周友谢天礼雷格刘学武
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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