作　　者： ; ;

机构地区： 深圳职业技术学院汽车与交通学院

出　　处： 《机械设计与制造》 2012年第8期37-39,共3页

摘　　要： 设计了一种用于四轮独立转向独立驱动电动轿车的独立悬架,该悬架采用双横臂、螺旋弹簧结构,悬架连接带轮毂电机的大质量电动车轮。对悬架系统进行简化,建立了悬架二自由度振动模型,采用均方根值分析方法,计算出振动系统的频率响应函数及振动响应的均方根值(包括车身加速度均方根值、车轮相对动载荷均方根值及悬架动挠度均方根值),基于悬架参数对电动车辆垂向性能的研究,提出了新型悬架弹簧刚度和减振器阻尼系数的设计方法,结合仿真及实验验证了设计方法的合理性。 A new suspension using double-wishbone and coil spring type structure is designed for four-wheeled independent steering and driving electric automobile.The suspension is connected with the large quality electric wheel which has a hub motor.The suspension system is simplified,and a two degree of freedom vibration model is built.The analysis method of root mean square（RMS）value is used to calculate the frequency response functions of the vibration system and the RMS values of the vibration response（including RMS value of the body acceleration,RMS value of the wheel relative dynamic load and RMS value of the suspension working space）.Based on vehicle vertical performance study,a new design method of suspension spring stiffness and damping coefficient is presented.And the reasonability of the method is verified by simulation and experiment.

关 键 词： 电动轿车 独立转向轮 悬架 垂向性能 参数设计

领　　域： [机械工程] [机械工程] [交通运输工程] [交通运输工程]