Manual-automatic integrated electric vehicle speed change system and use method thereof

Abstract

A manual-automatic integrated electric vehicle speed change system comprises a speed change device and a shifting fork device, wherein a gear assembly comprises a slow gear, a fast gear and an output gear; a claw disc assembly is arranged between the slow gear and the fast gear and comprises a first claw disc and a second claw disc which are limited in the circumferential direction and slide up and down on a supporting shaft; first claw teeth are arranged at the upper end of the first claw disc, and a slope surface is arranged on the same side of all the first claw teeth; second claw teeth are arranged at the lower end of the second claw disc; and the shifting fork device drives the second claw disc to move up and down and conduct positioning, and positions include that the first claw teeth are all located in a first through hole, the first slope surface intersects with the lower end surface of the first through hole, and the second claw teeth are located in a second through hole. According to the manual-automatic integrated electric vehicle speed change system, the structure is simple and compact, smooth transition and conversion among a slow gear, a reverse gear and a fast gear of an electric vehicle are realized, gear shifting response is faster, the phenomena of tooth hitting and tooth abutting are avoided, different states of vehicle sliding and slope sliding prevention are achieved, and the application range is wider.

Description

technical field [0001] The invention relates to the field of electric vehicle transmissions, in particular to a manual-autonomous electric vehicle transmission system and a method for using the same. Background technique [0002] Electric vehicles use batteries as energy sources, are driven by motors, do not require manual pedals, save effort, and have low noise, no exhaust gas, and less pollution compared with motorcycles and other internal combustion engines, so they have developed rapidly. [0003] Electric vehicles can achieve stable power output and achieve different vehicle speeds through changes in the speed of the motor; there are no clutches and synchronizers in traditional electric vehicles. When shifting gears, the relationship between the number of teeth is changed by adjusting the meshing of gears with different numbers of teeth. To achieve speed change, this method not only has a slow shift response, especially from fast to slow, but also when shifting gears, t...

AI Technical Summary

Problems solved by technology

[0003] Electric vehicles can achieve stable power output and achieve different vehicle speeds through changes in the speed of the motor; traditional electric vehicles do not have clutches and synchronizers. When changing gears, the relationship between the number of teeth is changed by adjusting the meshing between gears with different numbers of teeth. Realize speed change. This method not only has a slow shift response, especially from fast gear to slow gear, but also when shifting gears, the gears will be staggered and re-engaged, which will have a strong impact on the gears, making the transmission unstable and easily causing damage to the gears. In addition, the addition of clutches and synchronizers will cause excessive cost, excessive volume and changes in the driving mode of electric vehicles, which is not suitable for the use of electric vehicles

Images