Method for stopping a hydraulic pump with adjustable rotating speed in a hydraulic system and hydraulic pump controller device

摘要

The present invention relates to a method and device (1) for triggering the stop of a hydraulic pump (2) with adjustable rotating speed in a hydraulic system pre-established at a set point pressure (P_C), the method comprising the steps of: comparing (A) the pressure of the fluid (p) of the system with the set point pressure (P_c) of the system and varying (B) the rotating speed of said pump to match the pressure of the system with the pre-established set point pressure; verifying (C) if the feeding frequency (f) of said pump drops below a predetermined stop feeding frequency (f_STOP) and if so stopping (D) the pump until the pressure of the system drops (E) below the set point pressure.;The stop feeding frequency (fSTOP) of the pump is automatically determined by calculation means connected to the pump from the maximum pumping pressure (HMAX) of the pump and the feeding frequency at maximum rotating speed (fMAX), intrinsic to the pump.