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- 저자 : Oday Ali Ahmed (검색결과 1 건)
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ROBUST PATTERN RECOGNITION BASED FAULT DETECTION AND ISOLATION METHOD FOR ABS SPEED SENSOR
Ayad Qays Abdulkareem,Abdulrahim Thiab Humod,Oday Ali Ahmed 한국자동차공학회 2022 International journal of automotive technology Vol.23 No.6
Anti-lock braking system (ABS) is considered an essential safety system in electric vehicles that works to grant a reliable vehicle driving experience, and it is very important to ensure the security of such an onboard safety system. This work presents a detailed analysis associated with a comparison that includes several techniques based on pattern recognition for biasing fault detection in wheel and vehicle speed sensors. These techniques are K-nearest neighbor (KNN), support vector machine (SVM) and decision tree (DT), which were selected among other pattern recognition techniques that have been studied. The MATLAB Simulink model for the ABS system was implemented, and data was extracted from healthy and unhealthy operating conditions in order to be used to train each technique individually. An offline test was applied to these trained FDI models using the same implemented ABS Simulink model to express the performance of each one. Specifically speaking, accuracy and sensitivity were used in the algorithm’s efficiency comparison, with 99.9 % accuracy in the Fine KNN, 75 % accuracy in the Coarse Gaussian SVM, and 61.5 % accuracy in the Coarse Tree. From the result, and considering the ABS issues mentioned above, it can be concluded that the KNN classifier is superior to both the SVM and TREE classifiers.
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