Abstract: A method for operating a remote control system includes the method steps of providing a remote control system with an operating unit having a display and at least one operating element and with a communication unit having a communication connection to the operating unit, providing a control unit, which has a communication connection to the communication unit, of a work machine, detecting an operating unit actual configuration with a plurality of operating and selection menus by using the operating unit, transmitting the operating unit actual configuration from the operating unit to the control unit, detecting a work machine actual configuration by using the control unit, selecting at least one of the operating and selection menus depending on the work machine actual configuration, transmitting the at least one operating and selection menu to the operating unit and displaying the at least one operating and selection menu on the display.

Abstract: A method for operating a remote control system includes the method steps of providing a remote control system with an operating unit having a display and at least one operating element and with a communication unit having a communication connection to the operating unit, providing a control unit, which has a communication connection to the communication unit, of a work machine, detecting an operating unit actual configuration with a plurality of operating and selection menus by using the operating unit, transmitting the operating unit actual configuration from the operating unit to the control unit, detecting a work machine actual configuration by using the control unit, selecting at least one of the operating and selection menus depending on the work machine actual configuration, transmitting the at least one operating and selection menu to the operating unit and displaying the at least one operating and selection menu on the display.

Abstract: A crane, in particular a large crane, including a power consumer system for providing energy, a primary energy source for feeding primary energy into the power consumer system, at least one secondary energy source, independent of the primary energy source, for feeding secondary energy into the power consumer system, at least one energy storage unit arranged locally on the crane and is, in particular, associated with the at least one crane component and connected to the power consumer system for storing primary energy and/or secondary energy, at least one drive motor connected to the power consumer system for operating at least one crane component and a secondary energy source configured such that energy returned from the crane operation is at least partially fed as secondary energy into the power consumer system. The at least one crane component is configured as a secondary energy source for energy recovery.

Abstract: A crane, in particular a large crane, including a power consumer system for providing energy, a primary energy source for feeding primary energy into the power consumer system, at least one secondary energy source, independent of the primary energy source, for feeding secondary energy into the power consumer system, at least one energy storage unit arranged locally on the crane and is, in particular, associated with the at least one crane component and connected to the power consumer system for storing primary energy and/or secondary energy, at least one drive motor connected to the power consumer system for operating at least one crane component and a secondary energy source configured such that energy returned from the crane operation is at least partially fed as secondary energy into the power consumer system. The at least one crane component is configured as a secondary energy source for energy recovery.

Abstract: The invention proposes a hoisting-cable drive for a mobile crane, which hoisting-cable drive uses a single bottom-hook block (15) instead of a known double bottom-hook block. However, to prevent this single bottom-hook block (15) from tilting in the two cable lines (9, 10), for example due to possible variations in the elongation of the two cable drives, the hoisting-cable drive according to the invention comprises a kinematic force equilibrium device (17, 21), which can equalize such differences. To this effect, another embodiment of the hoisting-cable drive according to the invention uses a hoisting-cable load pickup (21) within each cable line arrangement so that the rotary speed of the winches (7, 8) can be varied, taking into account any load differences in the individual hoisting-cable lines (9, 10). Furthermore, the invention also proposes that the rotary speed of the winches (7, 8) be adjusted, taking into account the geometric winch states and crane states.

Abstract: The invention proposes a hoisting-cable drive for a mobile crane, which hoisting-cable drive uses a single bottom-hook block (15) instead of a known double bottom-hook block. However, to prevent this single bottom-hook block (15) from tilting in the two cable lines (9, 10), for example due to possible variations in the elongation of the two cable drives, the hoisting-cable drive according to the invention comprises a kinematic force equilibrium device (17, 21), which can equalize such differences. To this effect, another embodiment of the hoisting-cable drive according to the invention uses a hoisting-cable load pickup (21) within each cable line arrangement so that the rotary speed of the winches (7, 8) can be varied, taking into account any load differences in the individual hoisting-cable lines (9, 10). Furthermore, the invention also proposes that the rotary speed of the winches (7, 8) be adjusted, taking into account the geometric winch states and crane states.