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Transmission system of an eight-speed automatic transmission

A technology of automatic transmission and transmission system, which is applied in transmission devices, transmission components, vehicle gearboxes, etc. It can solve problems such as complex control strategies, manufacturing costs and reliability defects, and complex structures of eight-speed automatic transmissions, and achieve internal space layout The effect of compactness, high reliability and simple control

Active Publication Date: 2018-11-20
HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the hydraulic automatic transmission realizes automatic up / down gears through complex multi-set planetary gear trains and multiple clutches. At present, the use ratio of automatic transmissions continues to rise. Usually, the existing automatic transmissions on the market are mainly four-speed automatic transmissions. Six-speed automatic transmissions are also increasing year by year, but eight-speed automatic transmissions are very few. Due to the complex structure and control strategy of eight-speed automatic transmission fluids, eight-speed automatic transmissions still have problems in terms of manufacturing cost and reliability. big flaw

Method used

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  • Transmission system of an eight-speed automatic transmission
  • Transmission system of an eight-speed automatic transmission
  • Transmission system of an eight-speed automatic transmission

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] to combine figure 1 As shown, the transmission system of the eight-speed automatic transmission disclosed in this embodiment includes an input shaft 100, on which the first outer ring gear A1 and the primary conversion input shaft gear Z6 are fixedly fitted; that is, the first outer ring gear A1 and the primary conversion input shaft gear Z6 can rotate together with the input shaft 100; preferably, one end of the input shaft 100 is dynamically connected with a torque converter, and the first external ring gear A1 is on the input shaft near the side of the torque converter. 100 is installed, and the primary conversion input shaft gear Z6 is installed on the input shaft 100 away from the torque converter side.

[0022] The first planetary gear train includes the first sun gear S1, the first planetary gear Z1, the first planet carrier P1 and the first outer ring...

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Abstract

The invention relates to a transmission system of an eight-speed automatic transmission, comprising an input shaft, an output shaft, a first planetary gear train, a second planetary gear train, a first clutch, a second clutch, a third clutch, a fourth clutch, a first The brake, the second brake, and the combination of the first clutch, the second clutch, the third clutch, the fourth clutch, the first brake, and the second brake realize the selection of different speed ratios of the planetary gear mechanism. The present invention has simple structure, compact and reasonable internal space arrangement, high reliability and simple control, and the transmission system of the present invention can realize eight forward gears and two reverse gears. The economy will be greatly improved.

Description

technical field [0001] The invention relates to the technical field of transmission systems of automatic transmissions, in particular to a transmission system of an eight-speed automatic transmission. Background technique [0002] At present, the automatic transmission commonly used in automobiles is a hydraulic automatic transmission. The hydraulic automatic transmission is composed of a hydraulic torque converter, a planetary gear train and a hydraulic control mechanism (such as a clutch). Among them, the hydraulic automatic transmission realizes automatic up / down gears through complex multi-set planetary gear trains and multiple clutches. At present, the use ratio of automatic transmissions continues to rise. Usually, the existing automatic transmissions on the market are mainly four-speed automatic transmissions. Six-speed automatic transmissions are also increasing year by year, but eight-speed automatic transmissions are very few. Due to the complex structure and cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/44F16H57/023
CPCF16H3/44F16H57/023F16H2200/006F16H2200/0086F16H2200/2007F16H2200/2046
Inventor 孙德山杨林马静关崴柴召朋苏俊元郑广学王墨张晓冬武嘉文王泽宇于泳宁石伟李芳卉付岩宋文福贾林娜
Owner HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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