Patent ID: 6918478

Claim:
A method of controlling a clutch ( 7 ) powered by a hydraulic actuator ( 15 ) comprising a work chamber ( 28 ), which is filled with a fluid and connected to a solenoid valve ( 25 ) for selective connection to a drain tank ( 19 ) for draining the fluid, or to a storage tank ( 23 ) for accumulating pressurized fluid; the method providing for generating a target value (Pos*) of the position of the hydraulic actuator ( 15 ), measuring an actual value (Pos) of the position of the hydraulic actuator ( 15 ), and calculating a control signal (I*) for controlling the solenoid valve ( 25 ) by feedback control of the position of the hydraulic actuator ( 15 ); and the method being characterized by generating a target value (Put*) of the pressure of the fluid inside the work chamber ( 28 ), estimating an actual value (Put) of the pressure of the fluid inside the work chamber ( 28 ), and calculating the control signal (I*) using both feedback control of the position of the hydraulic actuator ( 15 ), and feedback control of the pressure of the fluid inside the work chamber ( 28 ).