An agricultural machine (100) is disclosed, comprising a frame (156), a ground-engaging element (124), a suspension system (270) that movably supports the frame (156) relative to the ground-engaging element (124), wherein the suspension system is configured to apply, for a given displacement of the frame (156) relative to the ground-engaging element (124), a force based on a force-to-displacement relationship, and a control system (208) configured to receive an input indicative of an operational state of the agricultural machine (100) during operation on a terrain, and automatically control the suspension system (270) to adjust the force-to-displacement relationship of the suspension system (270) based on the operational state.