Journal of Intelligent Learning Systems and Applications, 2020, 12, 51-81 https://www.scirp.org/journal/jilsa ISSN Online: 2150-8410 ISSN Print: 2150-8402 DOI: 10.4236/jilsa.2020.123004 Aug. 13, 2020 51 Journal of Intelligent Learning Systems and Applications Fusion of Model-Based and Data Driven Based Fault Diagnostic Methods for Railway Vehicle Suspension Abdulai Ayirebi Ankrah 1 , James Kuria Kimotho 2 , Onesmus Mutuku Muvengei 2 Abstract