On Application of Fuzzy Logic in Active Control of Truck Driver's Seat

The paper contains mathematical model of active control of truck driver seat suspension. Serial produced seat with a passive pneumatic suspension, that vibroisolation properties became improved by active control, is the object of simulation. Distributing element in this case is a flow proportional valve, receiving signal from fuzzy controller. Simulation has been carried out using of real excitations obtained during measurement of the truck floor vibrations. As results of computer simulations sample courses of acceleration and displacement for seat active suspension have been presented in comparison with those measured on the truck floor.