In this paper,the stiffness,power and friction parameters of a vehicle steering system are extracted by bench test,and the parameters are built into the corresponding model and input into the steering system model.Then,three typical operating conditions of steady turning with fixed radius,steering wheel angle step and central steering are studied by simulation and experiment.The results show that the simulation model with accurate modeling can predict each evaluation index more accurately,and also has higher prediction accuracy for the test results of steering wheel torque.The ADAMS/Car model is exported to Ⅵ-CarRealTime model by add-on,and the establishment method of the Ⅵ-CarRealTime rack and pinion model is described in detail.The calibration accuracy of Ⅵ-CarRealTime and ADAMS/Car model is further verified by building a rack and pinion model.In this study,the modeling and simulation methods of the steering system are deeply discussed,and good prediction accuracy is obtained in the experimental verification.It is of great significance to improve the accuracy and efficiency of vehicle steering system design,and provides a valuable reference for research and practice in related fields.
steering system modelingvehicle handling stabilityLugre modelADAMS/Car