Performance analysis of passive wheel speed sensor by 3D finite element method

Article type: Research Article

Authors: Marcsa, Dániel^a; | Veress, Árpád^b | Szegletes, János^a | Oroszváry, László^c | Molnár, László^a

Affiliations: [a] eCon Engineering Kft., Budapest, Hungary | [b] Faculty of Transportation Engineering and Vehicle Engineering, Department of Aeronautics, Naval Architecture and Railway Vehicle, Budapest University of Technology and Economics, Budapest, Hungary | [c] Knorr-Bremse Commercial Vehicle Systems R&D Center Budapest, Budapest, Hungary

Correspondence: [*] Corresponding author: Dániel Marcsa, eCon Engineering Kft., H-1116 Budapest, Kondorosi u. 3., Hungary. Tel.: +36 30 333 9324; E-mail: daniel.marcsa@econengineering.com

Abstract: Passive wheel speed sensors are widely used in automotive applications where knowledge of the rotational velocity of the rotating axes and resistant to environmental impacts are required. This paper presents a general introduction to wheel speed sensor systems and the underlying physical behaviour are explained with the help of three-dimensional time-stepping finite element method. The 3D field simulations well reflect the dynamics of the magnetic field of the real problem and they provide a quantitative understanding of the output signal behaviour concerning model parameter variations. The sensor geometry is analyzed in detail, featuring a study of the influence of the main parameters. As an outcome of parameter analysis, it was possible to determine the influence of the sensor parameters on the output signal of the sensor. In addition, this study aims to advance the understanding of the physical behaviour of passive wheel speed sensors by three-dimensional nonlinear finite element analysis, which is missing from the literature.

Keywords: Wheel speed sensor, passive sensor, parameter analysis, 3D finite element method

DOI: 10.3233/JAE-190002

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 61, no. 4, pp. 509-517, 2019