CRANE HAVING A CLOSED HYDRAULIC CIRCUIT

The present invention relates to a crane, in particular a mobile crane having a closed hydraulic circuit (1), in which a hydraulic pump (2) is hydraulically connected to at least one hydraulic motor (3, 9) by means of a feed (4) and a discharge (5), and the feed (4) is hydraulically connected to the discharge (5) by means of at least one bypass (6A, 6B), which bypasses the at least one hydraulic motor (3, 9), the at least one bypass (6A, 6B) comprising a proportional valve (7A, 7B) for the variable control of the fluid flow bypassing the at least one hydraulic motor (3, 9). The present invention further relates to a corresponding control device and a corresponding crane control program for controlling a closed hydraulic circuit (1) of a crane. 本发明涉及一种起重机，尤其是移动式起重机，具有闭合液压回路(1)，其中液压泵(2)通过进给口(4)和排放口(5)与至少一个液压马达(3、9)液压连接，并且其中所述进给口(4)通过至少一个绕过所述至少一个液压马达(3、9)的旁路(6A、6B)与所述排出口(5)液压连接，其中所述至少一个旁路(6A、6B)包括连续可调阀(7A、7B)，用于可变地控制绕过所述至少一个液压马达(3、9)的流体流。本发明还涉及用于致动起重机的闭合液压回路(1)的相应的控制装置和相应起重机控制程序。