Patent ID: 8190327

Claim:
Suspension control device with variable damping for a motor vehicle body on its wheels, said device comprising: a computer adapted to calculate a control magnitude of an actuator of at least one damper with variable damping of a suspension of the vehicle as a function of at least one body modal speed, calculated from at least one body modal acceleration determined on the vehicle, at least one displacement sensor providing a displacement measurement which is a measurement of a displacement of a wheel of the vehicle with respect to the vehicle body, a first calculation means for calculating the body modal acceleration from the displacement measurement provided by the displacement sensor, wherein the first calculation means for calculating the body modal acceleration comprises: a suspension force estimator providing an estimation of at least one force exerted by a suspension of said wheel on the body as a function of at least the displacement measurement provided by the displacement sensor, and a second calculation means for calculating the body modal acceleration as a function of at least the suspension force provided by said suspension force estimator.