Development of a Method for Health Monitoring of Rotating Object for Mobility based on Multiple RLS Algorithm

Hanbyeol La; Jiung Lee; Kwangseok Oh

doi:10.22680/kasa2024.16.2.051

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2024 Vol.16, Issue 2 Preview Page Next Page

Development of a Method for Health Monitoring of Rotating Object for Mobility based on Multiple RLS Algorithm 다중 재귀 최소 자승 추정 알고리즘 기반 모빌리티의 회전체 건전성 모니터링 방법 개발

30 June 2024. pp. 51-59

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Abstract

This study presents a method for health monitoring of rotating objects for mobility based on multiple recursive least squares(RLS) algorithms. The performance degradation of the rotating objects causes low handing / low driving performances and even fatal accidents. Therefore, health monitoring algorithm of rotating objects is one of the important technologies for mobility fail-safe and maintenance areas. In order for health monitoring of rotating objects, four recursive least squares algorithms with forgetting factor were designed in this study. The health monitoring algorithm proposed in this study consists of two steps such as uncertainty estimation and parameter changes estimation. In order to improve estimation accuracy, time delay function was applied to the estimated signals based on the first order differential equation and forgetting factors used for the RLS were reasonably tuned. The health monitoring algorithm was constructed in Matlab/Simulink environment and simulation-based performance evaluation was conducted using DC motor model. The evaluation results showed that the proposed algorithm estimates the actual parameter differences reasonably using velocity and current information.

Keywords

Health monitoring(건전성 모니터링)

Rotating object(회전체)

Recursive least squares(재귀 최소 자승)

Forgetting factor(망각 인자)

Torque constant(토크 상수)

Back EMF constant(역기전력 상수)

References

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Information

Publisher :Korean Auto-vehicle Safety Association
Publisher(Ko) :한국자동차모빌리티안전학회
Journal Title :Journal of Auto-vehicle Safety Association
Journal Title(Ko) :자동차안전학회지
Volume : 16
No :2
Pages :51-59
Received Date : 2023-11-24
Revised Date : 2024-05-17
Accepted Date : 2024-05-27
DOI :https://doi.org/10.22680/kasa2024.16.2.051

Journal of Auto-vehicle Safety Association ISSN:2005-9396(Print) 자동차안전학회지

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