A Sliding Mode Approach-Based Adaptive Steering Control Algorithm for Path Tracking of Autonomous Mobility with Weighted Injection

The increasing complexity of mathematical models developed as part of the recent advancements in autonomous mobility platforms has led to an escalation in uncertainty. Despite the intricate nature of such models, the detection, decision, and control methods for autonomous mobility path tracking rema...

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Main Authors: Sehwan Kim, Kwangseok Oh
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/11/10/972
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author Sehwan Kim
Kwangseok Oh
author_facet Sehwan Kim
Kwangseok Oh
author_sort Sehwan Kim
collection DOAJ
description The increasing complexity of mathematical models developed as part of the recent advancements in autonomous mobility platforms has led to an escalation in uncertainty. Despite the intricate nature of such models, the detection, decision, and control methods for autonomous mobility path tracking remain critical. This study aims to achieve path tracking based on pixel-based control errors without parameters in the mathematical model. The proposed approach entails deriving control errors from a multi-particle filter based on a camera, estimating the error dynamics coefficients through a recursive least squares (RLS) approach, and using the sliding mode approach and weighted injection to formulate a cost function that leverages the estimated coefficients and control errors. The resultant adaptive steering control expedites the convergence of control errors towards zero by determining the magnitude of the injection variable based on the control errors and the finite-time convergence condition. The efficacy of the proposed approach is evaluated through an S-curved and elliptical path using autonomous mobility equipped with a single steering and driving module. The results demonstrate the capability of the approach to reasonably track target paths through driving and steering control facilitated by a multi-particle filter and a lidar-based obstacle detection system.
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spelling doaj.art-1803cf8ecc584da09159fc978c1f046b2023-11-19T17:08:50ZengMDPI AGMachines2075-17022023-10-01111097210.3390/machines11100972A Sliding Mode Approach-Based Adaptive Steering Control Algorithm for Path Tracking of Autonomous Mobility with Weighted InjectionSehwan Kim0Kwangseok Oh1School of ICT, Robotics & Mechanical Engineering, Hankyong National University, Anseong-si 17579, Republic of KoreaSchool of ICT, Robotics & Mechanical Engineering, Hankyong National University, Anseong-si 17579, Republic of KoreaThe increasing complexity of mathematical models developed as part of the recent advancements in autonomous mobility platforms has led to an escalation in uncertainty. Despite the intricate nature of such models, the detection, decision, and control methods for autonomous mobility path tracking remain critical. This study aims to achieve path tracking based on pixel-based control errors without parameters in the mathematical model. The proposed approach entails deriving control errors from a multi-particle filter based on a camera, estimating the error dynamics coefficients through a recursive least squares (RLS) approach, and using the sliding mode approach and weighted injection to formulate a cost function that leverages the estimated coefficients and control errors. The resultant adaptive steering control expedites the convergence of control errors towards zero by determining the magnitude of the injection variable based on the control errors and the finite-time convergence condition. The efficacy of the proposed approach is evaluated through an S-curved and elliptical path using autonomous mobility equipped with a single steering and driving module. The results demonstrate the capability of the approach to reasonably track target paths through driving and steering control facilitated by a multi-particle filter and a lidar-based obstacle detection system.https://www.mdpi.com/2075-1702/11/10/972adaptive steering controlsliding mode approachweighted injectionmulti-particle filterrecursive least squaresautonomous mobility
spellingShingle Sehwan Kim
Kwangseok Oh
A Sliding Mode Approach-Based Adaptive Steering Control Algorithm for Path Tracking of Autonomous Mobility with Weighted Injection
Machines
adaptive steering control
sliding mode approach
weighted injection
multi-particle filter
recursive least squares
autonomous mobility
title A Sliding Mode Approach-Based Adaptive Steering Control Algorithm for Path Tracking of Autonomous Mobility with Weighted Injection
title_full A Sliding Mode Approach-Based Adaptive Steering Control Algorithm for Path Tracking of Autonomous Mobility with Weighted Injection
title_fullStr A Sliding Mode Approach-Based Adaptive Steering Control Algorithm for Path Tracking of Autonomous Mobility with Weighted Injection
title_full_unstemmed A Sliding Mode Approach-Based Adaptive Steering Control Algorithm for Path Tracking of Autonomous Mobility with Weighted Injection
title_short A Sliding Mode Approach-Based Adaptive Steering Control Algorithm for Path Tracking of Autonomous Mobility with Weighted Injection
title_sort sliding mode approach based adaptive steering control algorithm for path tracking of autonomous mobility with weighted injection
topic adaptive steering control
sliding mode approach
weighted injection
multi-particle filter
recursive least squares
autonomous mobility
url https://www.mdpi.com/2075-1702/11/10/972
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