ACTUATOR PROVIDED WITH TWO PRESSURE SENSORS AND A VIRTUAL PRESSURE SENSOR; A BRAKING SYSTEM AND AN AIRCRAFT PROVIDED WITH SUCH AN ACTUATOR, AND THE APPLIED METHOD

The present invention relates to an actuator (10) equipped with a pump (15) connected to a first hydraulic line (30) connected to a reservoir (25) and to a second hydraulic line (35). A control controller (40) communicates with a first pressure sensor (41) arranged on the second hydraulic line (35) and measuring a first supply pressure. A monitoring controller (50) communicates with the control controller (40) and a second pressure sensor (51) arranged on the second hydraulic line (35) and measuring a second supply pressure. A virtual pressure sensor is equipped with a verification instrument (55) transmitting at least one verification signal (SVERIF) carrying an operating parameter of the pump (15) to the control controller (40) and to the monitoring controller (50) to identify a failure of the actuator (10) and consequently apply a degraded operating mode.