摘要
为改善多轴转向车辆的低速机动性和高速稳定性,设计了一种具有四种转向模式的多轴转向车辆,并基于零侧偏角比例控制策略分析了该车的转向性能。阐述了车辆系统设计和转向执行器的选择流程;建立了多轴转向车辆的二自由度模型,并基于零侧偏角比例控制策略,推导出了车辆质心侧偏角、横摆角速度和侧向加速度的传递函数;利用MATALAB对不同转向模式下车辆的稳态响应和瞬态响应进行了仿真分析。结果表明:合理选择车辆转向模式能够有效改善车辆的低速机动性和高速稳定性。
In order to improve the multi-axis car steering performance at different speeds,the car was designed at different steering models and the steering performance was researched basing on the zero side-slip angles of mass center and proportional control strategy.The design of vehicle systems and the se- lection process of steering actuator were described.The transfer functions of the vehicle side-slip angle, yaw rate and lateral acceleration through the established 2-DOF model were deduced,basing on zero side-slip angles of mass center and proportional control strategy.Using MATLAB ,the handling stability of the three- axle car with different steering models was simulated and compared.The results showed that multi-axle steering technology can decrease the steering radius at low speed and improve vehicle stability at high speed.
出处
《机械设计与制造》
北大核心
2012年第10期33-35,共3页
Machinery Design & Manufacture
基金
国防基础科研计划项目(B2320110005)
关键词
多轴转向车辆
不同转向模式
动态转向技术
转向性能
Key Words： Multi-Axis Turning Car
Steering Model
Different Dynamic Steering
Technology Steering
