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arXiv 2304.03232cs.RO
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基于模型预测控制的计算高效型运动提示算法

Computationally-efficient Motion Cueing Algorithm via Model Predictive Control

Delft University of Technology(代尔夫特理工大学);Toyota Motor Europe(丰田汽车欧洲公司)

Akhil Chadha, Vishrut Jain, Andrea Michelle Rios Lazcano, Barys Shyrokau

AI总结:

针对基于MPC的运动提示算法在线计算成本高或离线存储需求大的问题,提出一种结合显式与隐式MPC的混合方法,利用查找表暖启动显著降低在线计算负担并保持良好跟踪性能。

摘要:

多年来,驾驶模拟器因能在安全、可重复且受控的沉浸式虚拟环境中进行测试,在汽车工业中得到了广泛应用。模拟器性能的提升及其为用户重现车内体验的能力,是通过运动提示算法(MCA)来实现的。此类算法一直以模型预测控制(MPC)作为主要控制技术不断发展。目前,现有的基于MPC的方法要么在线计算最优控制器,要么离线推导显式控制律。由于在线计算成本和/或离线存储问题,这些方法限制了MCA在实时应用中的适用性。本研究提出了一种混合方法来解决离线和在线求解的问题。为此,使用显式MPC生成查找表,以提供初始猜测,作为基于隐式MPC的MCA的暖启动。从仿真中观察到,所提出的混合方法能够利用显式控制器将在线计算负载转移至离线,从而降低在线计算负担。此外,在驾驶模拟器的模拟器环境中,该算法在复杂驾驶场景下展现出良好的跟踪性能,并显著减少了计算时间。

英文摘要:

Driving simulators have been used in the automotive industry for many years because of their ability to perform tests in a safe, reproducible and controlled immersive virtual environment. The improved performance of the simulator and its ability to recreate in-vehicle experience for the user is established through motion cueing algorithms (MCA). Such algorithms have constantly been developed with model predictive control (MPC) acting as the main control technique. Currently, available MPC-based methods either compute the optimal controller online or derive an explicit control law offline. These approaches limit the applicability of the MCA for real-time applications due to online computational costs and/or offline memory storage issues. This research presents a solution to deal with issues of offline and online solving through a hybrid approach. For this, an explicit MPC is used to generate a look-up table to provide an initial guess as a warm-start for the implicit MPC-based MCA. From the simulations, it is observed that the presented hybrid approach is able to reduce online computation load by shifting it offline using the explicit controller. Further, the algorithm demonstrates a good tracking performance with a significant reduction of computation time in a complex driving scenario using an emulator environment of a driving simulator.

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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