摘要
为研究分布式驱动电动汽车驱动对整车操纵稳定性的影响,建立较为准确的汽车动力学模型是重要的前提。在MATLAB/Simulink环境下建立分布式驱动电动汽车七自由度动力学模型,进行两驱和四驱的整车动力学仿真和分析,用CarSim软件验证所建模型精确度。仿真结果表明:建立的汽车动力学模型在角阶跃工况和正弦函数工况下,横摆角速度和质心侧偏角误差范围均在7%以内,可以真实地反映车辆运动特性的变化,为后续整车智能控制算法制定和验证性能等打下良好的仿真基础。
In order to study the influence of distributed drive electric wheel on vehicle handling stability,it is an important prerequisite to establish a more accurate vehicle dynamics model.a seven-degree-of-freedom dynamic model of distributed drive electric vehicle is established under the environment of MATLAB/Simulink.The dynamic simulation and analysis of two-wheel and four-wheel vehicles are carried out.The accuracy of the model is verified by CarSim software.The simulation results show that the yaw angular velocity and sideslip error range of the center of mass are within 7%under the angular step and sinusoidal function conditions,which can truly reflect the change of vehicle motion characteristics and lay a good simulation foundation for the formulation and validation of subsequent vehicle intelligent control algorithm.
作者
陈磊
李强
胡乾斌
赵璐
吴坚
Chen Lei;Li Qiang;Hu Qianbin;Zhao Lu;Wu Jian(School of Mechanical and Energy Engineering,Zhejiang University of Science and Technology,Zhejiang Hangzhou 310023)
出处
《汽车实用技术》
2019年第24期1-3,共3页
Automobile Applied Technology
关键词
分布式驱动
电动轮汽车
整车动力学模型
仿真
Distributed drive
Electric vehicle
Vehicle dynamics model
Simulation
