Disc-type wheel hub motor integrated with shock absorber

Abstract

The invention discloses a disc-type wheel hub motor integrated with a shock absorber. The motor comprises a stator structure, a rotor structure, a central shaft and a shock absorber; the central shaftis vertically arranged in the stator structure and the rotor structure in a penetrating manner; the rotor structure is rotationally connected with the central shaft; the outer edge of the rotor structure is fixedly connected with a tire; the shock absorber is fixedly arranged on the inner side of the stator structure; the stator structure is fixedly connected with the center shaft through the shock absorber; the stator structure is used for being fixed to a vehicle body; the stator structure is located outside a tire; the stator structure and the rotor structure are oppositely arranged in parallel; and the stator structure can generate an axial magnetic field parallel to the center shaft when powered on. According to the invention, the stator structure and the rotor structure are arrangedin a planar mode, so that the arrangement flexibility is improved; the unsprung mass is reduced; the operation stability and smoothness are improved; the shock absorber is integrated, so that the rotor structure has the vertical degree of freedom, meanwhile, vertical automatic reset can be achieved; and the problems of shaft abrasion and energy loss caused by extra shaft constraints are avoided.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a disc-type hub motor integrated with a shock absorber. Background technique [0002] With the continuous development of vehicle technology, higher requirements are put forward for its driving performance and handling performance, and technical problems in the mobility, lightweight and modularization of the vehicle power system have restricted the improvement of vehicle power driving and handling performance. Therefore, how to improve the lightweight and mobility of the power system and realize modularization has become the core requirement of vehicle driving control. As the wheel is an important part of the power system, the advanced design of the wheel is directly related to the performance of the power system. [0003] In recent years, some research institutions have carried out research on the structural design and control of new tires. The existing tire drive mainly uses...

AI Technical Summary

Problems solved by technology

However, the existing technology still has the following technical defects: in the prior art, the magnetic flux driving the rotor is mostly selected as radial flux, so the layout of the stator and the rotor must be on the same plane, whether it is an inner stator outer rotor or an outer stator inner rotor scheme , the stator and rotor cannot be separated due to the limitation of the same plane, and have to be integrated into the wheel together. The flexibility of the stator and rotor arrangement is greatly affected, and the unsprung mass of the vehicle is greatly increased, resulting in The steering stability and smoothness of the vehicle will deteriorate; in addition, it must be ensured that the rotor does not experience radial disturbance during operation, otherwise the existing magnetic field distribution and control scheme will fail

However, in actual working conditions, tires run vertically due to uneven road surfaces. Since the vertical direction of the tire is in the same direction as the rotor radial direction, the vertical disturbance of the tire will inevitably cause a small disturbance in the radial direction of the rotor. Additional shaft constraints absorb disturbance energy, but this increases shaft wear and energy loss

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