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Optimisation of handling and traction in a rear wheel drive vehicle by means of magneto-rheological semi-active differential

2009; Taylor & Francis; Volume: 47; Issue: 5 Linguagem: Inglês

10.1080/00423110802233185

1744-5159

Raffaele De Rosa, Michele Russo, Riccardo Russo, Mario Terzo,

Hydraulic and Pneumatic Systems

This paper presents a semi-active differential, magneto-rheological fluid limited slip differential, which allows us to bias the torque between the driving wheels. It is based on the magneto-rheological fluid employment, by which it is possible to change, in a controlled manner, the internal friction torque and, consequently, the torque bias ratio. This device is an adaptive one and allows us to obtain an asymmetric torque distribution in order to improve vehicle handling. The device modelling and the control algorithm, realised for this activity, are described. The illustrated results highlight the advantages that are attainable regarding directional behaviour, stability, and traction.