Abstract: A mobile large manipulator includes a chassis, unfoldable and/or extendable working boom, supporting struts, vertically extendable supporting legs, and a micro-controller-based program-controlled supporting aid. The unfoldable and/or extendable working boom is arranged rotatably around a vertical axis on the chassis. The supporting struts are respectively arranged on the chassis and are horizontally extendable from a travel position to a supporting position. The vertically extendable supporting legs are arranged on respective outer ends of the supporting struts. The supporting legs support the mobile large manipulator via respective supporting forces of the supporting legs. The supporting aid is configured to determine supporting forces for the respective supporting legs based, at least in part, on the supporting position of the supporting struts in which the chassis of the large manipulator is deployed unstressed in a support state.

Abstract: A regulation system for controlling the orientation of a segment (5.3) of a manipulator, in particular of a large manipulator for truck-mounted concrete pumps, wherein the segment (5.3) is connected to a base (5.4) or a preceding segment (5.3) of the manipulator via a joint (5.5) and can be pivoted at the joint (5.5) relative to the base (5.4) or the preceding segment (5.3) about at least one axis of rotation by means of at least one actuating member (5.6), preferably a hydraulic actuating element, characterized in that the regulation system at least comprises: a first sensor (4.1), which is arranged on a segment (5.3) attached to the joint (5.5) and delivers a first measurement signal—referred to as a “deformation signal”—corresponding to a deformation of the segment (5.3), a second sensor (4.2, 4.3), which delivers a second measurement signal—referred to as an “orientation signal”—corresponding to the spatial orientation of the segment (5.3) attached to the joint (5.

Abstract: An electrohydraulic control circuit for driving a hydraulically actuated actuating element (5, 6), by means of which a segment (5.3) of a manipulator, in particular of a large manipulator for truck-mounted concrete pumps, can be adjusted in terms of its orientation, wherein there are provided an electrically driven first valve (2.4), which is connected to hydraulic working lines of the actuating element (5.6) for the drive thereof, and leak-free check valves (2.5, 2.6) provided in the working lines of the actuating element (5.6), which valves are arranged on the actuating element (5.6) or on the segment (5.3) associated with this actuating element (5.6) and can be released for the normal operation of the actuating element (5.6), wherein the release of the check valves (2.5, 2.6) is driven by an electronic control unit (ECU) separate from the first valve (2.4) and the check valves (2.5, 2.6).

Abstract: A support apparatus for coupling to a vehicle, the apparatus including a support structure and a hydraulic cylinder coupled to the support structure. The hydraulic cylinder is configured to move linearly with respect to the support structure and to expand and contract. The apparatus further includes a sensing assembly that includes a proximity sensor. The proximity sensor is configured to sense and indicate that the hydraulic cylinder breaches a predetermined threshold distance between the hydraulic cylinder and the support structure.

Abstract: An electrohydraulic control circuit for driving a hydraulically actuated actuating element (5, 6), by means of which a segment (5.3) of a manipulator, in particular of a large manipulator for truck-mounted concrete pumps, can be adjusted in terms of its orientation, wherein there are provided an electrically driven first valve (2.4), which is connected to hydraulic working lines of the actuating element (5.6) for the drive thereof, and leak-free check valves (2.5, 2.6) provided in the working lines of the actuating element (5.6), which valves are arranged on the actuating element (5.6) or on the segment (5.3) associated with this actuating element (5.6) and can be released for the normal operation of the actuating element (5.6), wherein the release of the check valves (2.5, 2.6) is driven by an electronic control unit (ECU) separate from the first valve (2.4) and the check valves (2.5, 2.6).

Abstract: A regulation system for controlling the orientation of a segment (5.3) of a manipulator, in particular of a large manipulator for truck-mounted concrete pumps, wherein the segment (5.3) is connected to a base (5.4) or a preceding segment (5.3) of the manipulator via a joint (5.5) and can be pivoted at the joint (5.5) relative to the base (5.4) or the preceding segment (5.3) about at least one axis of rotation by means of at least one actuating member (5.6), preferably a hydraulic actuating element, characterised in that the regulation system at least comprises: a first sensor (4.1), which is arranged on a segment (5.3) attached to the joint (5.5) and delivers a first measurement signal—referred to as a “deformation signal”—corresponding to a deformation of the segment (5.3), a second sensor (4.2, 4.3), which delivers a second measurement signal—referred to as an “orientation signal”—corresponding to the spatial orientation of the segment (5.3) attached to the joint (5.