摘要
线控转向系统取消了转向盘与转向执行机构之间的机械连接,路感由模拟产生。通过Simulink与Carsim平台,建立线控转向汽车整车模型,根据传统转向系统转向过程中产生转向阻力矩的原理,利用动力学方法计算目标转向阻力矩。使用PID控制路感电机,模拟转向阻力矩。根据ISO13674标准,进行转向盘中间位置操纵稳定性试验。仿真结果表明,粒子群优化PID可以更有效地实现路感反馈功能。最后,与传统转向汽车实车试验对比,证明了线控转向系统路感控制策略的有效性。
The steer-by-wire(SBW)system cancels the mechanical connection between the steering wheel and the steering actuator,and the road feel needs to be simulated.Based on the Simulink and Carsim platforms,SBW vehicle model is established.According to the principle of the steering resistance torque generated during the steering process of the traditional steering system,the target steering resistance torque is calculated by the dynamic method.PID algorithm is used to control the road feel motor and simulate steering resistance torque.According to the ISO13674 standard,on-centre handling test is carried out.The simulation results show that the particle swarm optimization PID can more effectively realize road feel feedback.Finally,compared with the actual vehicle test of the traditional steering vehicle,the particle swarm optimization PID proves the effectiveness of the road feel control strategy of the steer-by-wire system.
作者
谢立刚
陈勇
XIE Ligang;CHEN Yong(School of Mechanical and Electrical Engineering, Beijing Information Science & Technology University, Beijing 100192, China;Beijing Laboratory for New Energy Vehicle, Beijing 100192, China)
出处
《重庆理工大学学报（自然科学）》
CAS
北大核心
2022年第4期68-74,共7页
Journal of Chongqing University of Technology：Natural Science
基金
科技创新服务能力建设-北京实验室建设项目(PXM2020_014224_000065)
科技创新服务能力建设-北京实验室建设-新能源汽车北京实验室项目(PXM2019_014224_000005)。
关键词
线控转向
粒子群算法
路感电机
steering-by-wire
particle swarm optimization
road feel motor
