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Return flow type stepless speed change driving device for automobile

A technology of transmission device and stepless speed regulation, which is applied in the direction of transmission device, gear transmission device, belt/chain/gear, etc., can solve the problems of narrow range of speed ratio change and low transmission efficiency, and achieve wide range of speed ratio change, The effect of high transmission efficiency and partial speed ratio variation range

Inactive Publication Date: 2007-04-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of continuously variable transmission device to solve the problems of narrow range of speed ratio and low transmission efficiency of existing automobile continuously variable transmission devices

Method used

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  • Return flow type stepless speed change driving device for automobile
  • Return flow type stepless speed change driving device for automobile
  • Return flow type stepless speed change driving device for automobile

Examples

Experimental program
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Embodiment

[0023] The connection relationship of the patented transmission system is: one end of the input shaft 1 of the backflow continuously variable transmission is directly connected to the engine, and the other end is connected to the driving pulley group 2 of the metal belt stepless speed regulating device and the driving disc of the clutch 6 The spline shaft 5 connects the driven disc of the clutch 6, the brake 8 and the input gear 4 of the constant speed ratio transmission device into one; It is fixedly connected with the sun gear 18 of the planetary row and the driving disc of the clutch 17, and connects the driving pulley group 2 and the driven pulley group 10 of the metal belt stepless speed regulating device through the metal belt 9; in order to ensure the constant speed ratio The input gear 4 of the transmission device rotates in the same direction as the output gear shaft 11 , and the input gear 4 transitions to the output gear shaft 11 through the intermediate gear 3 . In...

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Abstract

The present invention relates to stepless speed change device for automobile and is especially one kind of stepless speed change device for automobile with metal belt as return flow speed regulating mechanism. The return flow type stepless speed change device consists of stepless speed regulating metal belt unit, fixed speed ratio drive unit, planet rank unit, clutch set, brake, the first speed reducing gear pair, differentiator, etc. The present invention features one increased brake to raise the astern driving efficiency and to ensure the same position of the metal belt during starting and astern of automobile.

Description

technical field [0001] The invention relates to an automobile continuously variable transmission device, in particular to an automobile continuously variable transmission device using a metal belt as a return speed regulating mechanism. Background technique [0002] At present, the continuously variable transmission devices widely used in automobiles mainly include metal belt / metal chain transmission and hydraulic mechanical variable speed transmission. It is stipulated that the ratio of the maximum speed ratio to the minimum speed ratio of the transmission device is its speed ratio change range. For an ideal car continuous transmission system, the speed ratio change range must be above 6 to ensure the stability of the engine under different throttle openings. The operating point is always on the best fuel economy line. [0003] For the pure metal belt / metal chain continuously variable transmission device, due to the limitation of the structure size, the range of the speed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/00F16H9/04F16H1/28
Inventor 孙冬野罗勇秦大同刘振军
Owner CHONGQING UNIV
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