Abstract: A control system configured to control movement of a hydraulically operated crane assembly and a crane tool of a work vehicle with a primary power source and a hydraulic working system. The control system configured to calculate a deviation between an actual value and a predetermined target value of a lifting movement of the crane assembly, and configured to control the crane assembly to fulfill the predetermined target value.

Abstract: The disclosure relates to a method for controlling the crane of a working machine by using boom tip control, in which method the crane comprises at least two booms connected to the working machine and each other in an articulated manner, which booms are moved in relation to the working machine and to each other by means of actuators controlled by a control system of the working machine, and in which method the direction and speed of motion of the head of the crane, controlled by the driver applying controls in the working machine, is implemented by applying speeds of the different booms of the crane.

Abstract: A system and a method for controlling a tool pivotably mounted to an articulated boom connected to a work machine having a control unit. The solution: 1) determining the direction a predetermined point of the boom or the tool is moving to, i.e. the moving direction, and 2) controlling orientation of the tool as a function of one or several predetermined dependencies, the predetermined dependencies defining at least the orientation of the tool in relation to the moving direction. According to an example the work machine is a forest machine.

Abstract: A system and a method for controlling a tool pivotably mounted to an articulated boom connected to a work machine having a control unit. The solution: 1) determining the direction a predetermined point of the boom or the tool is moving to, i.e. the moving direction, and 2) controlling orientation of the tool as a function of one or several predetermined dependencies, the predetermined dependencies defining at least the orientation of the tool in relation to the moving direction. According to an example the work machine is a forest machine.

Abstract: The disclosure relates to a method for controlling the crane of a working machine by using boom tip control, in which method the crane comprises at least two booms connected to the working machine and each other in an articulated manner, which booms are moved in relation to the working machine and to each other by means of actuators controlled by a control system of the working machine, and in which method the direction and speed of motion of the head of the crane, controlled by the driver applying controls in the working machine, is implemented by applying speeds of the different booms of the crane.