|MARTELLOSIO CHIARA||Cycle: XXXVI|
Section: Systems and Control
Advisor: SAVARESI SERGIO MATTEO
Tutor: GARATTI SIMONE
Major Research topic:
Control and estimation techniques for semi-active suspension systems in cars
Road vehicles are complex systems whose overall dynamic behaviour is strongly influenced by the suspension system: indeed, it influences both the passengers riding comfort and the vehicle stability. The most exploited solution in the automobile industry is the semi-active damper, that can be used in combination with an electronically controllable spring, either in parallel or in an integrated solution, to achieve both load-levelling and semi-active control capabilities on the vehicle. Considering the semi-active suspension, many solutions have been developed among which the most common are: ;
- Electro-Hydraulic (EH): it is the most classical solution where it is possible by means of solenoid valves mounted inside (or outside) the damper to modify the orifice area and thus the dissipative action. ;
- Magneto-Rheological (MR): the damper contains a rheological fluid that can change its viscosity according to magnetic field which is controlled via an electric current. ;
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