Improvement of vibrational comfort on agricultural vehicles by passive and semi-active cabin suspensions

This paper investigates the effect a passive and semi-active hydropneumatic cabin suspension has on the comfort of the drivers. After modeling the hydropneumatic device, the parameters in the model are optimized with respect to objective comfort parameters using a global optimization technique. The parameters in the semi-active control laws are optimized using the same approach. Improvements in comfort values up to 90% are observed.