Pump control was achieved in three steps. Firstly, a traditional hydraulic load sensing pump was considered with the difference that the load sensing pressure signal is controlled using two additional EHPVs: one is positioned on the supply line and the other on the tank line. Using an auxiliary E.C.U. (Metering E.C.U.), it is possible to control them with the aim of generating and controlling the load sensing pressure to be sent to the pump compensators for displacement regulation.