Attitude change suppressive control system for active suspension system for automotive vehicle

摘要

An active suspension system includes active cylinders having a working chamber and disposed between a vehicular body and road wheels at respective of suspension systems. The system also includes vehicular height monitoring means for monitoring vehicular height at respective ones of the suspension systems for providing vehicular height indicative data. The system performs a height regulating mode operation, in which a front height adjustment command for the front suspension systems is derived on the basis of an average height data related to front-left and front-right vehicular height data, and a rear height adjustment command for rear suspension systems derived on the basis of an average height data related to rear-left and rear-right vehicular height data. On the other hand, the system performs an anti-roll operation by deriving vehicular rolling magnitude and deriving anti-rolling control command to be selectively added to and subtracted from the respective height adjustment commands so that suspension characteristics at the left and right suspension systems can be adjusted in opposite directions.