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A method for controlling a hydraulic system may include receiving an input command from an input device, generating a desired working pressure value relating to a working chamber of an actuator based on the input command, and generating a desired pressure value relating to a non-working chamber of t

A method for controlling a hydraulic system may include receiving an input command from an input device, generating a desired working pressure value relating to a working chamber of an actuator based on the input command, and generating a desired pressure value relating to a non-working chamber of the actuator based on the input command. The method may also include operating a valve assembly to control a fluid flow condition of the working chamber and to control fluid flow from the non-working chamber.

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A method for controlling a hydraulic system may include receiving an input command from an input device, generating a desired working pressure value relating to a working chamber of an actuator based on the input command, and generating a desired pressure value relating to a non-working chamber of t

A method for controlling a hydraulic system may include receiving an input command from an input device, generating a desired working pressure value relating to a working chamber of an actuator based on the input command, and generating a desired pressure value relating to a non-working chamber of the actuator based on the input command. The method may also include operating a valve assembly to control a fluid flow condition of the working chamber and to control fluid flow from the non-working chamber. ds, each lever being associated with a return spring one end of which is attached to said end shield. 4. The dispensing machine as claimed in claim 2 characterised in that the pressure roller comprises a first return pulley located on the inside of the machine relative to the end shields facing the housing, said first pulley accommodating a second belt mounted so that it protrudes from a second pulley located on the shaft of the drum and in that there is a third freely rotatable pulley at the rear of the machine, said third pulley fulfilling the function of keeping the second belt evenly tensioned. 5. The dispensing machine as claimed in claim 1 characterised in that it comprises a idler roller rotatably mounted at the front of the machine located in openings in the end shields of the housing and in that the idler roller does not touch the drum and is used to deflect the strip of material towards the drum and its cutting device and in that said idler roller has a central groove leaving room for a third transmission halt which is held at the rear of the machine by a fourth pulley located beyond drum, said fourth pulley being located in the axial plane of said groove and of a central groove in the drum. 6. The dispensing machine as claimed in claim 5 characterised in that the upper side of the belt links the idler roller and the fourth pulley without touching the drum whereas the lower side of the belt is firmly in contact with the drum over an angular distance in the area of the central groove, and in that the strip of material from the reel is inserted, after the idler roller, in the gap formed by the drum and said side of the belt with a view to guiding it towards the cutting device during rotation of the drum, said side fulfilling the function of temporarily holding the material against the drum. 7. The dispensing machine as claimed in claim 5 characterised in that a support of the fourth pulley has a curved edge facing the drum and concentric with the periphery of said drum, thus accompanying the strip of material towards the outlet of the machine. 8. The dispensing machine as claimed in claim 5 characterised in that the ends or the idler roller are fixed to the end shields in openings, the clearance of said idler roller with respect to the drum being adjustable depending on its position in said openings. 9. The dispensing machine as claimed in claim 1 characterised in that one end of the pressure roller cooperates with a mechanism for tensioning the strip of material, said mechanism being mounted on one of the swivelling levers. 10. The dispensing machine as claimed in claim 9 characterised in that the one end of the pressure roller comprises a cylindrical cavity allowing partial engagement of an end piece which rests on the one of the swivelling levers, said pressure roller accommodating a first pulley used to guide a second transmission belt, said pressure roller having a collar comprising a limit stop, said pressure roller extending into the cylindrical cavity as a cylindrical bearing surface in which is disposed an elastic return means, said elastic means being attached firstly to the collar and secondly in a bottom of the cavity. 11. The dispensing machine as claimed in claim 10 characterised in that the cylindrical bearing surface of the pressure roller has a protruding shape defining a limit stop and cooperating, when the pressure roller rotates, with a limit stop of the end piece to limit the tensioning at the pressure roller in opposition to the elastic return means. 12. The dispensing machine as claimed in claim 9 characterised in that the mechanism for tensioning comprises a gearing-down mechanism. 13. The dispensing machine as claimed in claim 12 characterised in that the pressure roller comprises a shouldered bearing surface on one side accommodating at least two rings that are successively actuated in opposition to an elastic return means when the strip of material if pulled, one of the rings causing rotation of the other ring after rotational travel and providing a gearing-down effect and tensioning the material to be cut, the pressure roller fulfilling the function of tensioning the material to be cut. 14. The dispensing machine as claimed in claim 13 characterised in that the pressure roller comprises a long shouldered bearing surface which accommodates the gearing-down mechanism, the long bearing surface accommodating a first internally cut out ring forming receptacle to accommodate a return spring, said ring having a protruding bearing surface on one of its lateral faces opposite an area where the material rests against the pressure roller, capable of following a peripheral contour of a collar on a fixed part of the long bearing surface of the pressure roller, a fixed limit stop being located on said collar to attached one end of said return spring, and in that the other end of said return spring of the first ring is connected to the long bearing surface. 15. The dispensing machine as claimed in claim 14 characterised in that, adjacent to a position of said first ring, there is a bush having a collar which passes through the first ring and against which a second ring comes into contact, the second ring being capable of being rotated in opposition to a second elastic return means, the second ring being located at an end of a support sleeve which in turn has, in opposition, a pulley which accommodates a transmission belt associated with the drum of the dispensing machine, and in that the second ring comprises a protruding limit stop and is moved when the drum rotates in opposition to the elastic return means, one end of which is attached to a bottom of the second ring and the other end of which is attached to a fixed protruding point on the collar of the bush, said second ring causing rotation of said first ring. 16. The dispensing machine as claimed in claim 14 characterised in that a fixed protruding point is angularly offset relative to the fixed limit stop of the first collar. 17. The dispensing machine as claimed in claim 16 characterised in that fixed protruding point is physically joined to a support of the first ring to then allow the first ring to be driven. 18. The dispensing machine as claimed in claim 1 characterised in that the second end of the pressure roller has a bearing surface allowing it to fit in a telescopic shaft, one end of the telescopic shaft fits on the swivelling lever. 19. The dispensing machine as claimed in claim 1 characterised in that it comprises, in a front part, a fixed front flap separately mounted on the lower part of the end shields of the housing in openings. 20. The dispensing machine as claimed in claim 1 characterised in that it comprises a protective plate located between the front part of the end shields of the machine, this plate extending towards the rear and being fixed in openings on the back surface of the housing. 21. The dispensing machine as claimed in claim 1 characterised in that the end shields are externally designed with a gripping flat enabling the operator to spread apart the resilient end shields and in that the gripping flats are pressed against the inside surface of the walls of the housing when the latter is fitted, thereby ensuring retention of the mechanisms and components of the machine. 22. The dispensing machine as claimed in claim 1 in applications for dispensing paper hand wipes. 23. The dispensing machine as claimed in claim 1 in applications for dispensing toilet paper.