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Abstract

A method and a system for controlling a parallel crane on a working machine by means of TCP control. According to the method, the parallel crane has a crane arm system with crane parts with a lifting arm section with two parallel arms, a rocker arm with a telescoping push arm, which crane parts are articulately mutually connected and to the working machine and can be displaced through impact of actuators and activators, which are controlled and monitored by a control system by which direction and motion speed of the parallel crane Tool Center Point (TCP) controlled by an operator using joysticks in the working machine, by applying speeds for the various crane parts of the parallel crane. A characteristic is that the speeds of the various crane parts of the parallel crane are automatically determined by the control system based on the position of the various crane parts.

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First Claim