SEMI-ACTIVE SHOCK ABSORBER WITH CONTINUAL PRESSURE CONTROL

摘要

The semi-active damper is operated by a controller which has a principal direct control loop (19) composed of an inverse model (15) of the damper. The inverse model is based on the physical quantities and allows determination of the control drive as a function of the effort on the semi-active damper and the set value of force to be provided. The inverse model of the damper determines a value for a theoretical electric current to control a compression valve (9) and an expansion valve (10), or a single valve (20) combining these two functions, on the basis of a measure of the relative speed between the two ends of the damper.