Hydrostatic Transmission with a Traction Control

The paper addresses a typical application of the hydrostatic transmissions, i.e. the locomotion of vehicles. It is proved that if a full traction scheme is adopted (with hydraulic motors on both axles) the contribution of the front and rear axle to the overall traction capacity can be changed by acting on the displacement setting of the individual motors. By piloting these degrees of freedom through an automatic control system, the perturbations in the traction balance due to soil properties or vehicle attitude can be compensated.