Control system for controlling a hydraulic actuator

Abstract

The invention relates to a control system comprising a hydraulic distributor and a hydraulic pump; the hydraulic pump supplies the hydraulic distributor via a first supply line; the hydraulic pump is driven by a thermal engine; the control system includes a computer; the control system further includes an intermediate supply line and a load sensing line branching off from the intermediate supply line; the distributor includes an open position and a closed position; pressure from the load sensing line controls a resisting torque of the hydraulic pump; the computer detects a risk of engine stalling based on the engine speed of the thermal engine, and in response, commands a movement of the hydraulic distributor towards the closed position;The movement of the hydraulic distributor towards the closed position results in a drop in pressure in the load sensing line. Figure for the abbreviation: 2;

Claims

12.

13. the hydraulic actuator (2) being the hydraulic lifting cylinder (80); the hydraulic pump (4) being mechanically coupled to the shaft of the internal combustion engine (5). Handling machine (1000) according to claim 11, wherein the handling arm (60) comprises at least two telescopic segments deployable by means of an extension cylinder arranged between the at least two segments. Handling machine (1000) according to claim 12, configured in the form of a telescopic arm forklift. [Fig. 1] 90 :

40. \ 150 '1 2C0 [Fig. 3] [Fig. 4] [Fig. 5] [Fig. 6]

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