Electric motorcycle CVT stepless speed change driving system and electric motorcycle

Abstract

The invention provides an electric motorcycle CVT stepless speed change driving system and an electric motorcycle. The driving system comprises a driving motor, a hub and a speed control system used for transmission between a power output end of the driving motor and the hub, wherein the speed control system at least comprises a CVT stepless speed change system. The system automatically adjusts the reduction ratio according to driving resistance, and ensures that the motor always works within a high efficiency working range, thereby saving driving energy consumption and increasing full chargeendurance, and reduces impacts on the motor and a controller during load change, thereby effectively enhancing the reliability of the motor and the controller and improving the riding comfort.

Description

technical field [0001] The invention relates to an electric vehicle drive system, in particular to an electric motorcycle CVT continuously variable speed drive system and the electric motorcycle. Background technique [0002] With the rapid development of science and technology, the requirements for energy conservation and environmental protection are also increasing. As a clean energy locomotive, electric vehicles have been widely used; especially in the field of two-wheel and three-wheel vehicles, the application is increasing. [0003] In the prior art, more electric three-wheeled and two-wheeled motorcycles adopt two-speed or multi-speed transmission structure, mainly to solve the disadvantage of poor climbing ability of ordinary wheel hub motors, through manual control or automatic shifting two-speed and multi-speed Gear reduction mechanism to increase the output torque to achieve the purpose of increasing the climbing ability. [0004] The above transmission mode has ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, more electric three-wheeled and two-wheeled motorcycles adopt two-speed or multi-speed transmission structure, mainly to solve the disadvantage of poor climbing ability of ordinary wheel hub motors, through manual control or automatic shifting two-speed and multi-speed Gear reduction mechanism to increase the output torque to achieve the purpose of increasing the climbing ability

[0004] The above transmission mode has the following problems: 1. Manual control only controls the speed change mechanism based on the experience of the operator, which will inevitably cause a mismatch between the motor power and the driving resistance during riding, making the motor work in a low-efficiency working range, resulting in waste of battery energy

2. Although the two-speed or multi-speed transmission mechanism with automatic transmission has solved the human factor, the problem of the frustration of shifting and the mismatch between the motor power and the driving resistance during riding still exists; For electric motorcycles, it greatly affects the handling and safety

3. Two-speed or multi-speed transmission mechanism, because the reduction ratio of two gears changes greatly, it will have an impact on the motor and controller at the moment of shifting gears, shorten the service life of the motor and controller, and burn the motor or controller in serious cases. device, and the riding comfort is poor

Images