Browse Publications Technical Papers 2018-01-1297

Performance Evaluation of Magnetorheological Limited Slip Differential for Automotive Applications 2018-01-1297

The present work investigates the effect of magnetorheological fluid (MRF) on limited slip differential (LSD) system for automotive applications to improve torque distribution which influences traction and maneuverability. The proposed differential system uses a magnetorheological fluid which permits to control the locking torque effectively and then improve the vehicle traction characteristics. To evaluate the proposed system, a prototype model involves some rotating clutches submerged in MRF associated with an electromagnet coil was built. Experimental tests were carried out in two cases, first case by applying mechanical force on the friction clutches and the second by applying magnetic field to change the MRF viscosity. The yield stress of MRF depends on the magnetic field applied by the electromagnet by varying electric current. The controllable yield stress generates friction force on the rotating clutches surfaces to transmit torque. The transmitted torque was measured to evaluate the advantages of MRF in classic LSD. The results reveal that proposed MR-LSD can improve automotive traction.


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