轮毂电机驱动整车在不平路面下的振动响应分析

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中图分类号：U461.4 文献标志码：B

Abstract： In order to analyze the influence of uneven road surface，unsprung mass and vibration generated by the coupling of unbalanced electromagnetic force and road excitation on the vibration response of a vehicle driven by in-wheel motors，a multi-rigid body dynamic model of a four-wheel motor driven vehicle is established by Adams/Car. The vertical dynamics simulation is carried out to analyze the vehicle vibration response under diferent influence factors. The results show that the influence of change in motor driving mode on vehicle ride comfort is related to the sprung mass. When the sprung mass is large，the relative dynamic load of the tire is mainly afcted by the motor driving mode，while other vehicle ride comfort evaluation indexesare litle aected by it.The vehicle vibration response is significantly deteriorated by the deterioration of road roughness and the increase of vehicle speed.The relative dynamic load of the wheeland the eccentricity of the stator and rotor of the hub motor are significantly increased by the increase of unsprung mass，which adversely impacts the safety of the wheel. Vehicle vibration response is little affected by unbalanced electromagnetic force.

Key words： Adams； in-wheel motor; ride comfort； unsprung mass； road grade； unbalancedelectromagnetic force；vibration

0引言

轮毂电机驱动系统能实现独立、直接地控制车轮内电机，实时、精确地驱动车轮转动。（剩余6176字）