电动轮轮内主动减振器的非线性最优滑模模糊控制  

Nonlinear Optimal Sliding Mode Fuzzy Control for In-Wheel Active Vibration Damper of Electric Wheel

作　　者：王骏骋 何仁[1] Wang Juncheng;He Ren(School of Automobile and Traffic Engineering,Jiangsu University,Zhenfiang 212013)

机构地区：[1]江苏大学汽车与交通工程学院,镇江212013

出　　处：《汽车工程》2018年第6期719-725,共7页Automotive Engineering

基　　金：国家自然科学基金(51275212)资助

摘　　要：轮毂电机与车轮刚性连接会增加电动车辆的非簧载质量,影响车辆平顺性。为克服电动轮垂向振动负面影响,提出一种电动轮轮内主动减振器的非线性最优滑模模糊控制方法。建立了考虑悬架广义非线性特性的1/4车辆动力学模型,通过对非线性系统的线性化、构建最优滑模模糊调节器和逆线性化这3步实现轮内主动减振控制,并进行了对比仿真验证。结果表明:非线性最优滑模模糊控制的电动轮轮内主动减振器可有效减弱轮毂电机垂直振动负面效应,确保电动车辆具有更好的综合平顺性能。Rigid connection of in-wheel motor and wheel may increase the unsprung mass of electric vehicle and deteriorate the ride comfort of vehicle. To overcome the negative effects of vertical vibration of wheel,a nonlinear optimal sliding mode fuzzy control scheme is proposed for the in-wheel active vibration damper in electric wheel.A quarter vehicle dynamics model is established with consideration of the generalized nonlinear characteristics of suspension,the control of in-wheel active vibration damper is fulfilled by linearizing the nonlinear system,constructing an optimal sliding mode fuzzy controller,and de-linearization. A comparative simulation is then conducted and the results show that the in-wheel active vibration damper in electric wheel with nonlinear optimal sliding mode fuzzy control can effectively reduce the negative effects of vertical vibration of in-wheel motor and ensure a better comprehensive ride comfort performance of electric vehicle.

关 键 词：电动车辆 轮毂电机 主动减振器 非线性 最优滑模模糊控制 

分 类 号：U469.72[机械工程—车辆工程]