CAJ | 학술논문

针对传统的车辆换道模型在换道过程中存在着侧向加速度过大或产生跃变、轨迹曲率不连续以及换道过程起始时刻侧向加速度不为零的问题,以四段式车道变换理论为基础,提出一种新的车辆自由换道轨迹函数,并引入B样条理论对换道轨迹进行再规划,进而建立一种新的高速公路车辆自由换道模型.该模型能够较好的解决传统车道变换模型存在的上述缺陷.给定车辆换道轨迹性能评价参数,利用Matlab仿真计算得到新模型产生的换道轨迹,并与另外两种换道模型产生的轨迹进行对比分析.分析结果验证了该模型的正确性及有效性.
침대전통적차량환도모형재환도과정중존재착측향가속도과대혹산생약변、궤적곡솔불련속이급환도과정기시시각측향가속도불위령적문제,이사단식차도변환이론위기출,제출일충신적차량자유환도궤적함수,병인입B양조이론대환도궤적진행재규화,진이건립일충신적고속공로차량자유환도모형.해모형능구교호적해결전통차도변환모형존재적상술결함.급정차량환도궤적성능평개삼수,이용Matlab방진계산득도신모형산생적환도궤적,병여령외량충환도모형산생적궤적진행대비분석.분석결과험증료해모형적정학성급유효성.
Traditional lane change models in the process of lane changing have defects such as the lateral acceleration is too high or have jumps,the path has a noncontinuous curvature profile,and the lateral acceleration at initial moment in the process of lane changing is not zero.A new lane change function based on principle of four -phase lane changing model was put forward and the lane change path was rebuilt by adopting B-spline theory,at last a new lane change model for vehicles on highway was built.The new model could resolve the abovementioned existent defects in traditional models.With the given evaluation parameters of the lane changing path,the lane change path from this new model was calculated by Matlab software,and compared with the lane changing paths from two traditional models.The analysis result proved the correctness and feasibility of this new lane change model.