MagneRide: magneto-rheological fluid-based semi-active suspension system

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MagneRide: magneto-rheological fluid-based semi-active suspension system

Alexandridis, A.A.

The paper describes a novel, semi-active vehicle suspension system that uses Magneto-Rheological (MR) fluid-based actuators, sensors, and on-board controller to enhance vehicle Ride and Handling Qualities. The MR dampers are less complex and more reliable than their conventional, valve-based counterparts; they also outperform them in all aspects of damper performance. The ride and handling performance of MagneRide is compared to conventional and passive and active hydropneumatic systems of current production passenger cars. MagneRide is shown to outperform all of these suspension systems. The result of simultaneous technical advances in Intelligent Materials, Design Optimization, and Chassis Control Algorithms, MagneRide provides a very wide range of damping force control with unparalleled responsiveness and high authority. The new technology overcomes the traditional tradeoff between ride and handling. By enabling continuous, real-time damping control, it has been shown to increase control of vehicle motions for a flat ride and precise handling, enhance road holding for improved wheel control and a safer, more secure ride, control load transfer characteristics for improved roll control and handling during transient maneuvers and improve road isolation by reducing the transmission of high-frequency road disturbances through the dampers.