Patent ID: 7672766

Claim:
Control device for a suspension of a motor vehicle body on its wheels, having a computer having a means for calculating a control magnitude for an actuator of at least one variable damper of the suspension as a function of a setpoint modal force for the damper, calculated as a function of at least one body modal speed, estimated on the vehicle, wherein the computer has: a first means for calculating a first setpoint modal force F 1 for the damper as a function of at least one absolute body modal speed, estimated on the vehicle, a second means for calculating a second setpoint modal force F 2 for the damper as a function of at least one relative body modal speed with respect to the mid-plane of the wheels, estimated on the vehicle, a means for detecting at least one demand on the vehicle, a means for calculating a weighting coefficient α of the first setpoint force F 1 and the second setpoint force F 2 , for calculating said setpoint modal force F of the damper using the formula F= (1−α)· F 1 +α·F 2, where the weighting coefficient α is greater than or equal to 0 and lower than or equal to 1, is normally 0, and takes the value of 1 at least when the detected demand exceeds a prescribed threshold.