An active vibration damping system of a driver´s seat for off-road vehicles

This paper covers the development of an active vibration damping system for the driver´s seat. After a general description of the problem this paper first analyses the suspension mechanism and electrohydraulic system functions required in an active vibration damping. Secondly, the paper discusses the major features of an active vibration damping system, including control and measurement systems. Results from experimental tests are presented to show the performance of the active damping. The results are evaluated based on the ISO 2631/1-1985 Standard. These indicate, that an active system can provide considerable improvements in the vibration absorption when compared with a passive only seat damping