海狮牌加长电动汽车前悬架的仿真分析及定位参数优化

Simulation and positioning parameter optimization of the front suspension of Hiace extended electric vehicle

利用ADAMS/CAR软件的悬架分析模块,创建了海狮牌加长电动汽车前悬架的仿真模型,并对前悬架及轮胎的运动情况进行了仿真。仿真结果显示:轮胎偏移量及主销内倾角过大,易造成轮胎的额外磨损。根据仿真结果对前悬架主要定位参数进行了调整,在减小轮胎偏移量的同时,使其定位参数能满足海狮牌加长电动汽车的整体设计要求。经路试,优化电动汽车前悬架定位参数后,轮胎偏磨现象基本解决,前轮轮胎的里程寿命比优化前提高约10%,验证了所创建仿真模型的正确性以及通过仿真进行参数优化的可行性。

This paper uses the ADAMS/CAR suspension analysis module to create a parametric simulation model of the Hiace extended electric vehicle front suspension,and simulates the movement of the front suspension and tires.The simulation results show that the deviation of the tire and the kingpin inclination is too large,which is easy to cause additional tire wear.According to the simulation results,the main positioning parameters of the front suspension are adjusted to reduce the tire offset and meet the overall design requirements of Hiace extended electric vehicle.The road test shows that,after optimizing the front suspension positioning parameters of electric vehicle,the tire eccentric wear is basically solved,and the mileage life of front wheel tire is about 10%higher than that before optimization,which verifies the correctness of the created simulation model and the feasibility of parameter optimization through simulation.