Patent ID: 8428807

Claim:
A process for determining one state of motion of a vehicle body of a vehicle, which vehicle has at least one wheel spring-mounted on the vehicle body via a wheel suspension, the process comprising the steps of: providing at least one acceleration sensor, said at least one acceleration sensor being arranged at the wheel or in the wheel suspension; providing at least one path or angle sensor, said at least one path or angle sensor being arranged in the wheel suspension; measuring an inward deflection (z rel ) of the wheel with respect to the vehicle body with said at least one path or angle sensor; differentiating said inward deflection (z rel ) to determine an inward deflection velocity (ż ż rel ) of the wheel; measuring a vertical acceleration ({umlaut over (z)} wheel ) of the wheel with said at least one acceleration sensor; integrating over time said vertical acceleration ({umlaut over (z)} wheel ) of the wheel to determine a vertical velocity (ż wheel ) of the wheel; and determining a vertical velocity (ż body ) of the vehicle body by forming a difference of said vertical velocity (ż wheel ) of the wheel and said inward deflection velocity (ż rel ) of the wheel.