ARRANGEMENT FOR CONTROLLING THE STROKE OF A STROKING TOOL OF A VEHICLE AND METHOD FOR CONTROLLING STROKE

摘要

The invention relates to an arrangement (1) for controlling the stroke of a stroking tool (2) of a vehicle and to a method for controlling stroke. To this end, the arrangement comprises a control device (3) comprising a position controller (4) and a force controller (5) acting together with a controllable hydraulic valve (6) for the stroke tool (2). The hydraulic valve (6) is connected downstream of the position and force controllers (4, 5) and converts control signals from the position and force controllers (4, 5) into stroke motions of the stroke tool (2) by means of a stroke cylinder (12). The arrangement further comprises a tensile force measurement sensor for measuring the tensile force acting on the stroke tool and a stroke mechanism position measurement sensor for measuring the position at which the stroke tool is located. The control device (3) comprises a central control unit (9) forming an average force effort as a target value (Fsoll) for the tensile force (F) after reaching a position target value (Lsoll) set at a control panel (10) of the stroke tool (2) for a limited time (t1) or a limited travel distance (S1) when the force control is switched on. The target value (Fsoll) is fed to a differential element (1) feeding the difference between the target value (Fsoll) and an actual value (Fist) of a tensile force measurement sensor (7) to the force controller (5) as a control variable.