Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads

This paper presents a comparative study on coordinated control of path tracking and vehicle stability for autonomous vehicles on low-friction roads. Generally, a path-tracking controller designed on high-friction roads cannot provide good performance under low-friction conditions. To cope with the p...

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Main Authors: Manbok Park, Seongjin Yim
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Actuators
Subjects:
Online Access:https://www.mdpi.com/2076-0825/12/11/398
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author Manbok Park
Seongjin Yim
author_facet Manbok Park
Seongjin Yim
author_sort Manbok Park
collection DOAJ
description This paper presents a comparative study on coordinated control of path tracking and vehicle stability for autonomous vehicles on low-friction roads. Generally, a path-tracking controller designed on high-friction roads cannot provide good performance under low-friction conditions. To cope with the problem, a coordinated control between path tracking and vehicle stability has been proposed to date. In this paper, three types of coordinated controllers are classified according to the controller structure. As an actuator, front-wheel steering, four-wheel steering, and four-wheel independent braking and driving are adopted. A common feature of these types of controllers is that front steering and yaw moment control are adopted as control inputs. To convert the yaw moment control into tire forces generated by combinations of multiple actuators, a control allocation method is applied. For each type, a controller is designed and simulated using vehicle simulation software. From the simulation results, a performance comparison among those controller types is carried out. Through comparison, it is shown that there are small differences among those types of controllers in terms of path tracking.
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spelling doaj.art-3f8cfaeb64ab453cb84d06cf2a07a01d2023-11-24T14:22:29ZengMDPI AGActuators2076-08252023-10-01121139810.3390/act12110398Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction RoadsManbok Park0Seongjin Yim1Department of Electronic Engineering, Korea National University of Transportation, Chungju-si 27469, Republic of KoreaResearch Center for Electrical and Information Technology, Seoul National University of Science and Technology, Nowon-gu, Seoul 01811, Republic of KoreaThis paper presents a comparative study on coordinated control of path tracking and vehicle stability for autonomous vehicles on low-friction roads. Generally, a path-tracking controller designed on high-friction roads cannot provide good performance under low-friction conditions. To cope with the problem, a coordinated control between path tracking and vehicle stability has been proposed to date. In this paper, three types of coordinated controllers are classified according to the controller structure. As an actuator, front-wheel steering, four-wheel steering, and four-wheel independent braking and driving are adopted. A common feature of these types of controllers is that front steering and yaw moment control are adopted as control inputs. To convert the yaw moment control into tire forces generated by combinations of multiple actuators, a control allocation method is applied. For each type, a controller is designed and simulated using vehicle simulation software. From the simulation results, a performance comparison among those controller types is carried out. Through comparison, it is shown that there are small differences among those types of controllers in terms of path tracking.https://www.mdpi.com/2076-0825/12/11/398autonomous vehiclepath-tracking controlvehicle stability controllinear quadratic regulatorcontrol allocationlow-friction condition
spellingShingle Manbok Park
Seongjin Yim
Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads
Actuators
autonomous vehicle
path-tracking control
vehicle stability control
linear quadratic regulator
control allocation
low-friction condition
title Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads
title_full Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads
title_fullStr Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads
title_full_unstemmed Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads
title_short Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads
title_sort comparative study on coordinated control of path tracking and vehicle stability for autonomous vehicles on low friction roads
topic autonomous vehicle
path-tracking control
vehicle stability control
linear quadratic regulator
control allocation
low-friction condition
url https://www.mdpi.com/2076-0825/12/11/398
work_keys_str_mv AT manbokpark comparativestudyoncoordinatedcontrolofpathtrackingandvehiclestabilityforautonomousvehiclesonlowfrictionroads
AT seongjinyim comparativestudyoncoordinatedcontrolofpathtrackingandvehiclestabilityforautonomousvehiclesonlowfrictionroads