Active suspension for vehicle with high frequency vibration damping - has bandpass filter for processing suspension movements and with variable reaction shock absorbers

摘要

The vehicle suspension has variable dampers on each strut, with the damping coefficient of any damper adjustable during the displacement of the strut. Longitudinal motion sensors and processing circuits determine the vibration of the suspension and regulate the dampers. A bandpass filter eliminates high frequency vibrations, such as are transmitted when the dampers are set hard. The motion sensors compute the acceleration of the sprung mass or the acceleration is directly measured by inertial sensors. The bandpass filter comprises a low pass filter and a high pass filter, providing a combined effect of a band between 0.5 Hz and 3Hz. ADVANTAGE - Improved comfort, reduction in high frequency vibrations.