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International Journal of Automotive Technology > Volume 22(4); 2021 > Article
International Journal of Automotive Technology 2021;22(4): 883-893.
doi: https://doi.org/10.1007/s12239-021-0080-9
Shengyu Yan1, Chenglong Liu2, Jing Cao2
1Chang’an University
2Tongji University
PDF Links Corresponding Author.  Jing Cao , Email. jcao@tongji.edu.cn
Driving comfort significantly affects travel experiences. However, the most prevailing automated vehicle (AV) control strategies mainly focus on the safety and efficiency concerns, neglecting the comfort perspective. Moreover, pavement conditions, such as roughness and distress, cannot be directly detected by standard AV onboard sensors, although they are essential factors impacting driving comfort. This study aimed to present a vehicle-to-infrastructure system to adjust AV trajectories for alleviating the negative impacts of bumpy roads on comfort. The precollected lane-based roadway roughness information was used to optimally adjust the longitudinal and lateral AV trajectories. The method was validated by an eight-degree-of-freedom full-car simulation model. Specifically, the relationships among comfort, jerk, speed, and pavement parameters were revealed and applied to the adjustment process. The results showed that the trajectory adjustment approach improved the overall comfort level by 30 % in the numerical case. Furthermore, a framework was designed to facilitate data exchanges between vehicles and infrastructures in empirical scenarios. The proposed method had the potential to assist AVs in better-perceived driving quality.
Key Words: Automated vehicles, Comfort improvement, Full-car simulation, Trajectory control, V2I communication
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