Design of semiactive damper in vehicle suspension considering the tire lift off

Abstract

A quarter car model with magnetorheological (MR) damper is studied in this paper. An adopted experimentally verified non - linear hysteretic mathematical model is used to represent the MR damper. Approaching road disturbances are measured by a sensor. Optimal preview control strategy for fully active suspension is derived with respect to road holding, suspension rattle space and ride comfort. Continuous inverse mathematical model of the MR damper for the use of control is derived. The effect of tire lift off is modeled using a continuous mathematical function.