A computer system for performing an axle load adjustment action of vehicle axle of a vehicle is provided. The computer system including processing circuitry is configured to obtain tire data, and obtain at least one adjustment parameter, wherein at least one adjustment parameter is requirement data pertaining to the weight of the vehicle, axle load requirements of the vehicle, and the legal requirements for the road on which the vehicle is or will be travelling, determine an axle load adjustment action based on at least one adjustment parameter and based on tire data, and execute said axle load adjustment action, wherein the axle load adjustment action includes an temporarily increase of the load of the at least one axle of the vehicle.

A control system (300) for controlling an active suspension system (104) of a vehicle (100), the active suspension system comprising suspension actuators (502), the control system comprising one or more controller (301), wherein the control system is configured to: in dependence on an activation signal (904), provide (908) a control signal to the active suspension system to cause the suspension actuators of the active suspension system to repetitively pulse vertical force through wheels (FR, FL, RR, RL) of the vehicle in a controlled pattern determined by the one or more controller, to vary wheel-to-surface contact patch forces, wherein the pattern comprises repetitively pulsing vertical force through at least one of the wheels at a first phase and through at least one other of the wheels at a second phase.