Vehicle with suspension force decoupling system

A suspension force decoupling system for a vehicle having a suspension arm connected to and extending between a road wheel and a vehicle body, the suspension force decoupling system comprising:

• first and second actuator masses arranged on an axis extending between the suspension arm and the vehicle body, the first and second actuator masses jointly exhibiting a calibrated actuator mass of about 2-10 kg;
• an actuator disposed between the first and second actuator masses and arranged on the axis, the actuator being configured to output an actuator force, in response to an actuator control signal, to thereby extend or retract the first and second actuator masses along the axis;
• first and second compliant elements each connected along the axis to a respective one of the first and second actuator masses and to a respective one of the vehicle body and the suspension arm, and each providing a respective predetermined mechanical compliance level;
• and
• a controller configured to determine the actuator force and generate the actuator control signal in response to an acceleration of the vehicle body indicative of road vibrations, such that the actuator force is decoupled from the road vibrations in a predetermined frequency range.

A suspension force decoupling system for a motor vehicle, the motor vehicle having a vehicle body, a road wheel, and a suspension corner, the suspension corner having a suspension arm connected to and extending between the road wheel and the vehicle body, the suspension force decoupling system comprising:

• first and second actuator masses arranged on an axis extending between the suspension arm and the vehicle body, the first and second actuator masses jointly exhibiting a calibrated actuator mass of about 2-10 kg;
• an actuator disposed between the first and second actuator masses and arranged on the axis, the actuator configured to output an actuator force, in response to an actuator control signal, to thereby extend or retract the first and second actuator masses along the axis, wherein the actuator is a rotary or linear actuator;
• a first coil spring connected along the axis to the first actuator mass and the vehicle body, and providing a first predetermined mechanical compliance level;
• a second coil spring connected along the axis to the second actuator mass and the suspension arm, and providing a second predetermined mechanical compliance level;
• and
• a controller configured to determine the actuator force and generate the actuator control signal in response to a threshold acceleration of the vehicle body indicative of road vibrations, such that the actuator force is decoupled from the road vibrations in a predetermined frequency range of about 9-13 hertz.