LOAD-SUSCEPTIBLE SYSTEM, MACHINE INCORPORATING IT AND METHOD OF CONTROLLING HYDRAULIC DRIVE Russian patent published in 2012 - IPC E02F9/22 

FIELD: machine building.

SUBSTANCE: proposed system comprises first assembly of actuators to control first hydraulic function, pump to feed hydraulic fluid at pressure into said actuators, electrically control valve to control pump discharge pressure by hydraulic signal, first pressure transducer to measure load pressure of the said first assembly of actuators, and control unit to receive signal containing data on load pressure measured by first pressure transducer and to generate control signal corresponding to first measured load pressure to be transmitted to said control valve. Note here that control unit allow determining required pump pressure so that difference between measured load pressure and pump pressure varies depending upon operating conditions.

EFFECT: higher efficiency of control.

18 cl, 3 dwg