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arXiv 1808.02189eess.SYcs.SY
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铰接式重型车辆的鲁棒路径跟踪控制

Robust path-following control for articulated heavy-duty vehicles

Filipe Marques Barbosa, Lucas Barbosa Marcos, Maira Martins da Silva, Marco Henrique Terra, Valdir Grassi

摘要:

路径跟踪和横向稳定性是自动驾驶汽车的关键问题。此外,由于铰接式重型车辆的机动性差、尺寸大和质量变化,当处理铰接式重型车辆时,这些问题的复杂性增加。此外,质量的不确定性可能会显着降低系统的性能,甚至到不稳定的点。这些参数的变化必须考虑在控制器的设计。然而,鲁棒控制技术通常需要离线调整辅助调谐参数,这是不实际的,导致次优操作。因此,本文提出了一种方法,路径跟踪和横向控制的自主铰接重型车辆的参数不确定性,通过使用鲁棒递归调节器。所提出的控制器的主要优点是,它不依赖于离线调整的调谐参数。参数不确定性被假定为有效载荷上的,并且$\mathcal{H}_{\infty}$控制器被用于性能比较。这两个控制器的性能进行评估,在一个双变道机动。仿真结果表明,该方法在鲁棒性、横向稳定性、行驶平顺性和安全性等方面都有较好的性能,是一种很有应用前景的控制方法。

英文摘要:

Path following and lateral stability are crucial issues for autonomous vehicles. Moreover, these problems increase in complexity when handling articulated heavy-duty vehicles due to their poor manoeuvrability, large sizes and mass variation. In addition, uncertainties on mass may have the potential to significantly decrease the performance of the system, even to the point of destabilising it. These parametric variations must be taken into account during the design of the controller. However, robust control techniques usually require offline adjustment of auxiliary tuning parameters, which is not practical, leading to sub-optimal operation. Hence, this paper presents an approach to path-following and lateral control for autonomous articulated heavy-duty vehicles subject to parametric uncertainties by using a robust recursive regulator. The main advantage of the proposed controller is that it does not depend on the offline adjustment of tuning parameters. Parametric uncertainties were assumed to be on the payload, and an $\mathcal{H}_{\infty}$ controller was used for performance comparison. The performance of both controllers is evaluated in a double lane-change manoeuvre. Simulation results showed that the proposed method had better performance in terms of robustness, lateral stability, driving smoothness and safety, which demonstrates that it is a very promising control technique for practical applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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