摘要
汽车的横摆稳定性是汽车操纵稳定性的重要组成部分。本文首先建立了能够反映汽车基本行驶特性的二自由度车辆简化模型作为控制系统的参考模型。选用横摆角速度作为控制目标,通过将实际横摆角速度与理想横摆角速度差值的反馈,根据模糊控制理论决策出汽车所需的附加横摆力矩,通过差动制动的方式实现汽车的横摆稳定性控制。采用动力学仿真软件Car Sim与Matlab/Simulink的联合,搭建了控制系统的仿真平台,验证了控制系统的有效性。最后了搭建基于d SPACE的硬件在环实时仿真平台,通过在典型工况下的实时仿真进一步验证了控制系统的有效性。
The yaw stability of the automobile is the important component of automobile handling stability. This paper firstly built a 2DOFS vehicle model which could reflect the driving character as the reference model for control system. Then choosing the yaw rate as control target,by inputing the difference value of real yaw rate and ideal yaw rate into the fuzzy control system to compute required additional yaw moment.Using differential braking to realize the automobile yaw stability control. By using Matlab/Simulink and CarSim co- simulation, the effectiveness of the control system was verified. Finally based on dSPACE hardware-in-the loop simulation test bench, the simulation on different typical condition further showed the effectiveness of the control system.
出处
《内燃机与配件》
2018年第16期28-32,共5页
Internal Combustion Engine & Parts
关键词
横摆稳定性
模糊技术
差动制动
实时仿真
yaw stability
fuzzy control
differential braking
real-time simulation
