Planetary gear multipath transmission stepless speed changer

Abstract

The invention discloses a stepless transmission for planetary gear multi-path drive, which is designed according to the principle of differently distributing the moment and revolution rate because the planetary gear provides rotation and revolution to different extent under different environment and control. The invention is composed of two rotating members with planetary gear component, one set of the rotating members is used as input step and a rotating member is used to serve as a main input gear for connecting an input moment, and the other set is used as output step and a rotating member serves as a main output gear for driving rear-step driving mechanism. The middle of the other two rotating members of the input step and the output step are connected in pair by different drive ratio, thereby respectively forming two drive paths for reducing speed and increasing moment and increasing speed and reducing moment. Stepless change to driving of input moment is accomplished by forward and reverse rotation modes of the drive path for increasing speed and reducing moment, constantly variable rotating speed of the two moment driving paths and proper control to rotation speed of the two movement driving paths. The stepless transmission for planetary gear multi-path drive is a stepless transmission for gears with fixed number of teeth, has high drive efficiency and strong drive capacity, which is produced with prior art and products with low device investment, and has manufacturing cost much lower than existing stepless transmission and automatic transmission.

Description

[0001] Field of technology: [0002] The invention relates to a continuously variable transmission, in particular to a principle of different distribution of torque and rotational speed by revolution and rotation of planetary gears to realize stepless change of torque and rotational speed transmission. technical background: [0003] Realizing continuously variable transmission is the goal that the automobile industry has been longing for. The current hydraulic automatic transmission and electronically controlled continuously variable transmission have made great progress to a certain extent, but they also have some shortcomings: 1. Hydraulic automatic transmission transmission The ratio is discontinuous, and it can only realize stepless speed change within the subsection range; the hydraulic transmission efficiency is low, and the power performance and fuel economy are not ideal. 2. Due to material reasons, the electronically controlled continuously variable transmission can o...

AI Technical Summary

Problems solved by technology

[0003] Realizing continuously variable transmission is the goal that the automobile industry has been longing for. The current hydraulic automatic transmission and electronically controlled continuously variable transmission have made great progress to a certain extent, but they also have some shortcomings: 1. Hydraulic automatic transmission transmission The ratio is discontinuous, and it can only realize stepless speed change within the subsection range; the efficiency of hydraulic transmission is low, and the power performance and fuel economy are not ideal

2. Due to material reasons, electronically controlled continuously variable transmissions can only be used in some small-displacement vehicles at present, but cannot be applied in large-displacement and high-power vehicles.

3. They are complex in structure, high in production cost, and difficult to maintain

Because of the above reasons, the continuously variable transmission of automobiles has not been popularized.

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