A HOOKLIFT ARRANGEMENT, A VEHICLE, AND A METHOD IN RELATION THERETO
DRIVE
August 30, 2023
A hooklift arrangement (2) for loading a load carrying object (4) onto a vehicle (6), comprising:- a movable arm (8) for loading load carrying object (4) the vehicle (6),- at least one hydraulic double-acting cylinder (14) attached to the movable arm (8), the cylinder (14) being operable in an active operation mode, wherein the piston rod of the cylinder controls the movement of the movable arm (8), and in a passive operation mode, wherein the movable arm (8) controls the movement of the piston rod of the cylinder (14),- a sensor system (16) configured to determine positions of the movable arm (8) and/or the load carrying object (4) in relation to the vehicle (6), and to determine a position signal (18) in dependence thereto,- a control system (20) configured to determine and generate control signals (22) controlling the operation of the cylinder (14), and of the vehicle (6). The control system (20) is configured to, during loading of a load carrying object (4), determine, that a predetermined part (24) of the load carrying object (4) has been lifted higher than a predetermined level L being defined for passive operation mode, and, in response to that the load carrying object (4) has been lifted higher than said predetermined level L, the control system (20) is further configured to generate control signals (22) for changing the operation mode of the cylinder (14) to a passive operation mode, and to the vehicle (6) for moving the vehicle (6) towards the load carrying object (4), such that said movement of the vehicle (6) moves the load carrying object (4) on to the vehicle (6).
Discussion in the ATmosphere