Abstract
Oil leakage is a common fault in commercial MR damper. The monitoring of the suspension transmissibility, magnitude ratio between the sprung and unsprung mass accelerations, allows to detect a fault in a damper. Two proposed approaches: Force sensor based (FTR) and Accelerometers sensor based (ATR) online estimate the suspension transmissibility. The concept is validated in a vertical model of a single vehicle. Using a Receiver Operating Characteristic (ROC) curves, the best threshold is defined. Early results have less than 26 % average in detection error for ATR approach, which is a 9 % better than FTR approach. Intensive validation in a full vehicle model in CarSim" shows the feasibility of practical implementation of this fault detection system. © 2012 IFAC.
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De Jesus Lozoya-Santos, J., Tudón-Martínez, J. C., Morales-Menendez, R., Ramirez-Mendoza, R., & Garza-Castañón, L. E. (2012). A fault detection method for an automotive magneto-rheological damper. In IFAC Proceedings Volumes (IFAC-PapersOnline) (Vol. 8, pp. 1209–1214). IFAC Secretariat. https://doi.org/10.3182/20120829-3-MX-2028.00292
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