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8-gear automatic transmission

A transmission housing and brake technology, applied in the field of vehicle transmission, can solve the problems of cumbersome control, narrow transmission ratio range, large transmission volume, etc., and achieve the effect of simple control and reduced volume

Active Publication Date: 2015-04-29
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The known typical 8-speed transmission is large in size, the control of each gear is relatively cumbersome, and the range of transmission ratio is relatively narrow

Method used

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  • 8-gear automatic transmission
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Experimental program
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Embodiment Construction

[0014] exist figure 1 In the schematic diagram of the mechanism of a new eight-speed automatic transmission shown, all components are arranged in the transmission housing, and the planetary gears 2, 6, 10, and 14 in each row of planetary rows are respectively connected to the sun gears in the same row of planetary rows. Mesh with the ring gear through the gear pair. The first connecting member 17 interconnects the first planetary ring gear 1 and the second planetary ring gear 5; the second connecting member 18 connects the first planetary carrier 3, the second planetary carrier 7 and the third planetary carrier The ring gears 9 are interconnected; the third connecting member 19 interconnects the third planetary row carrier 11 and the fourth planetary ring gear 13; the fourth connecting member 20 connects the third planetary row sun gear 12 and the fourth planetary row sun gear 16 interconnections;

[0015] The first clutch C1 interconnects the input shaft 22 and the fourth c...

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Abstract

The invention discloses 8-gear automatic transmission, which comprises an input shaft, an output shaft, planetary gear rows, connecting components and torque transmission devices, wherein four planetary gear rows are provided, each planetary gear row comprises a sun wheel, a planet carrier, a planet wheel and a gear ring, four connecting components are arranged, the torque transmission device comprises two clutches and four brakes, the clutches and the brakes in the torque transmission device are respectively selectively jointed or fastened with one of the sun wheels, the planet wheels, the gear rings and the four connecting components, and the torque transmission device is capable of establishing eight forward gear ratios and one reverse gear ratio between the input shaft and the output shaft through selective joint of at least two torque transmission components in a combining form. According to the 8-gear automatic transmission, the number of the torque transmission components is reduced and the size of the transmission is reduced.

Description

technical field [0001] The invention belongs to the technical field of vehicle transmission, in particular to a transmission. Background technique [0002] A typical multi-speed transmission uses a combination of friction clutches, planetary gearing, and fixed interconnections to achieve multiple gear ratios. The number and physical arrangement of planetary gear sets is usually dictated by packaging, cost and desired speed ratios. While current transmissions achieve their intended purpose, there is a virtually constant need for new and improved transmission configurations that exhibit improved performance, especially from the standpoint of ratio range, responsiveness and smoothness. look) and improved packaging (mainly reduced size and weight). The known typical 8-speed transmission is relatively bulky, the control of each gear is relatively cumbersome, and the range of the transmission ratio is relatively narrow. Contents of the invention [0003] The object of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/62
CPCF16H3/62F16H57/023
Inventor 丁华锋黄鹏王惠英朱金孟韩文剑孙玉峰
Owner YANSHAN UNIV