Vehicle suspension systems multi-modelling

The standard dampers used by more than 90% of the vehicles have damping coefficients constant along the stroke, so they can´t solve simultaneously all of them, the situation was solved practically using a relative damping coefficient able to make a compromise between them. This paper presents a new self-adaptive suspension system multi-model. The performances are compared to those obtained with classical passive suspension systems multi-model. It presented a new principle for VZN-damper system whose performances are close to those of semi-active suspension systems and are also much higher than these in terms of operational safety and cost / performance to the classic passive suspension systems. The systems are similar in terms of physical components cousin. Because stiffness feedback position control of chassis is made with appreciable static error but static positioning error is not essential, as for suspension is to provide dynamic performance, better and better filtration induced perturbation way in the suspension entry system.