Variable tire lateral load transfer distribution

A method of controlling relative roll torque in a vehicle having a front active sway bar, which varies roll torque of a front axle, and a rear active sway bar, which varies roll torque of a rear axle, comprising:

• monitoring dynamic driving conditions during operation of the vehicle;
• and
• biasing tire lateral load transfer distribution (TLLTD) relative to the front axle based on the monitored dynamic driving conditions, wherein positive bias of the TLLTD increases a portion of a total roll torque carried by the front active sway bar, and wherein biasing TLLTD occurs during one or more dynamic bias events triggered as monitored dynamic driving conditions exceed one or more calibrated thresholds;
• decaying the biased TLLTD back to a steady-state base value after the one or more dynamic bias events decreases below a decay rate;
• varying the total roll torque based on a driver mode setting having at least two modes;
• monitoring loading conditions of the vehicle;
• monitoring ride height of the vehicle;
• and
• setting the TLLTD to the steady-state base value in response to the monitored loading conditions and monitored ride height,
• wherein biasing TLLTD during the one or more dynamic bias events shifts the TLLTD away from the steady-state value.

A method of controlling relative roll torque in a vehicle having a front active sway bar, which varies roll torque of a front axle, and a rear active sway bar, which varies roll torque of a rear axle, comprising:

• monitoring dynamic driving conditions during operation of the vehicle;
• shifting tire lateral load transfer distribution (TLLTD) between the front axle and the rear axle of the vehicle based on the monitored dynamic driving conditions, wherein shifting the TLLTD toward the front axle increases a portion of a total roll torque carried by the front active sway bar, and wherein shifting the TLLTD toward the rear axle increases a portion of the total roll torque carried by the rear active sway bar;
• setting the TLLTD to a steady-state base value;
• shifting the TLLTD away from the steady-state base value during one or more bias events, in response to the monitored dynamic driving conditions;
• and
• decaying the shifted TLLTD back to the steady-state base value after the one or more bias events decreases below a decay rate,
• wherein each of the one or more bias events has a dedicated decay rate, and
• wherein there are at least two different dedicated decay rates.