Fahrzeugzustandsabschätzvorrichtung, suspension control apparatus and suspension system

A first observer gain of an actual Dampfungskraftabschatzbeobachters 21 calculates a dynamic characteristic compensation signal and a second observer gain of an actual Fahrzeugmodellzustandsbetragsabschatzbeobachters 23 calculates a vehicle model compensation signal from an output deviation (a difference between a sprung speed (observer output), which is provided by a vehicle 2, and an estimated sprung speed estimated observer output ) provided by a vehicle model estimate of the actual vehicle model state amount estimation observer 23, corresponds. The dynamic characteristic compensation signal is input to a Dynamikeigenschaftvorseheinheit the actual Fahrzeugmodellzustandsbetragsabschatzbeobachters 23 and is used to adjust the settings of the Dynamikeigenschaftvorseheinheit. Therefore, it is possible to curb the occurrence of delay in a control, thereby performing vibration control with improved accuracy.