CAJ | 학술논문

建立某大型客车的含侧向、横摆及侧倾三自由度动力学模型，通过方向盘角阶跃转向仿真结果和试验数据的比较，验证了仿真分析的准确性。采用横摆角速度跟踪主动前轮转向控制策略，结合比例积分控制方法，在考虑作动器动态特性和前轮转角饱和特性的基础上，对主动前轮转向控制前后的车辆进行直线行驶下的侧向风扰动和湿滑路面急转弯情况下的仿真对比分析。结果表明，主动前轮转向控制后的车辆其操纵稳定性和行车安全性都有较大的提高。
건립모대형객차적함측향、횡파급측경삼자유도동역학모형，통과방향반각계약전향방진결과화시험수거적비교，험증료방진분석적준학성。채용횡파각속도근종주동전륜전향공제책략，결합비례적분공제방법，재고필작동기동태특성화전륜전각포화특성적기출상，대주동전륜전향공제전후적차량진행직선행사하적측향풍우동화습활로면급전만정황하적방진대비분석。결과표명，주동전륜전향공제후적차량기조종은정성화행차안전성도유교대적제고。
A large coach dynamics model with lateral, yaw and roll three freedoms is established. By the comparison between the simulation results and the test data under the steering wheel angle step input, the accuracy of the simu-lation model is verified. And the active front-wheel steering(AFS)yaw rate tracking control strategy is chosen. Com-bined with the proportional integral control method, the actuator dynamics and front wheel angle saturation are con-sidered. And the two situations of the coach under the lateral wind disturbance when driving on the straight line and cornering sharply on the slippery roads are simulated between the AFS controlled and uncontrolled systems. The re-sult shows that the handling stability and safety of the coach with AFS has been greatly improved.