The present invention relates to a GPS-guided laser pipe positioning system and methods of using the same. More specifically, a target marker is placed a distance from a laser beam source and the target marker has a GPS tracker thereon, wherein the laser beam source tracks the precise location of the target marker through the GPS tracker. The laser beam is then aimed at the location of the GPS tracker, or at a location an offset distance, such as displaced vertically downward under the ground such that the laser beam is aimed at the location within a trench for positioning pipe therein.

In a method of controlling a wheel loader, the wheel loader is moved forwards such that a bucket penetrates into an aggregate to perform an excavation work. Signals able to be used to determine tire slip of the wheel loader are obtained during the excavation work. Prediction algorithms obtained through training are performed to determine whether or not the tire slip occurs. In case of the tire slip, an engine speed is decreased and the bucket is lifted to remove the tire slip. The bucket is moved along a predetermined autonomous excavation trajectory when the tire slip is removed.

In a method of controlling a wheel loader, the wheel loader is moved forwards such that a bucket penetrates into an aggregate to perform an excavation work. Signals able to be used to determine tire slip of the wheel loader are obtained during the excavation work. Prediction algorithms obtained through training are performed to determine whether or not the tire slip occurs. In case of the tire slip, an engine speed is decreased and the bucket is lifted to remove the tire slip. The bucket is moved along a predetermined autonomous excavation trajectory when the tire slip is removed.

The present invention relates to a system for determining the mass of a payload moved by a working device of a machine, comprising: a lifting-gear element that is movable along a path and is designed to move the working device; a sensor system that is designed to provide a plurality of machine-status signals which indicate a status of the machine; a force sensor system that is designed to provide a lifting-force signal that indicates a force on the lifting-gear element; and a control device that is designed: to use system parameters for load determination that originate from pre-configured CAD data, preferably CAD data that has been pre-configured at the factory, and/or from continuous calibration of system parameters; to carry out calibration using the pre-configured parameters as initialisation if unsatisfactory results are achieved; to carry out the calibration in an unloaded state, i.e. when the working device is empty, with automatically predefined stimulation trajectories being used for the machine or instructions being provided to the operator for stimulating the parameters; to log the system statuses using the sensor and to carry out a system identification of this information; and to determine a mass of the payload on the basis of identified and/or pre-configured system parameters and system statuses, preferably on the basis of a position, a speed, an acceleration of the lifting-gear element and/or a force or torque on the lifting-gear element.

The present invention relates to a system for determining the mass of a payload moved by a working device of a machine, comprising: a lifting-gear element that is movable along a path and is designed to move the working device; a sensor system that is designed to provide a plurality of machine-status signals which indicate a status of the machine; a force sensor system that is designed to provide a lifting-force signal that indicates a force on the lifting-gear element; and a control device that is designed: to use system parameters for load determination that originate from pre-configured CAD data, preferably CAD data that has been pre-configured at the factory, and/or from continuous calibration of system parameters; to carry out calibration using the pre-configured parameters as initialisation if unsatisfactory results are achieved; to carry out the calibration in an unloaded state, i.e. when the working device is empty, with automatically predefined stimulation trajectories being used for the machine or instructions being provided to the operator for stimulating the parameters; to log the system statuses using the sensor and to carry out a system identification of this information; and to determine a mass of the payload on the basis of identified and/or pre-configured system parameters and system statuses, preferably on the basis of a position, a speed, an acceleration of the lifting-gear element and/or a force or torque on the lifting-gear element.

Device for a hydraulic hammer (1), in which there is a hydraulic impact system and a work point (2) for performing work, for preventing damage caused by ricocheting pieces. The device is formed of a shield (6) that can be lowered to the level of the work point particularly by hydraulic cylinders (7, 8). The shield (6) is formed of an essentially circular jacket, in which recycled materials, for example recycled vehicle tires, transport mats, or similar, are mostly used.

A management system for a work vehicle, includes: a traveling condition data generation unit configured to generate traveling condition data that causes a work vehicle to enter with forward movement, from an entrance of a workplace to a work point of the workplace, and exit with backward movement, from the work point to an exit of the workplace; and an output unit configured to output the traveling condition data to the work vehicle.

The invention relates to an installation (10) for making a continuous wall in ground (S), the installation comprising: an excavation machine (14) having a frame (16) with a bottom end (16b); determination means (80) for periodically determining the offset between the frame and a first screen while making a second screen in the ground juxtaposed with the first screen; and correction means (50) for periodically correcting the position of the frame (16) so as to reduce the offset as determined by the determination means between the frame (16) and the first screen (E1), and maintain overlap between the longitudinal side of the frame and the longitudinal side of the first screen in such a manner that the second screen is secant with the first screen (E1) over the entire length of the shorter of the first and second screens, thereby forming the wall that is continuous.

The invention relates to an installation (10) for making a continuous wall in ground (S), the installation comprising: an excavation machine (14) having a frame (16) with a bottom end (16b); determination means (80) for periodically determining the offset between the frame and a first screen while making a second screen in the ground juxtaposed with the first screen; and correction means (50) for periodically correcting the position of the frame (16) so as to reduce the offset as determined by the determination means between the frame (16) and the first screen (E1), and maintain overlap between the longitudinal side of the frame and the longitudinal side of the first screen in such a manner that the second screen is secant with the first screen (E1) over the entire length of the shorter of the first and second screens, thereby forming the wall that is continuous.

The present invention relates to a GPS-guided laser pipe positioning system and methods of using the same. More specifically, a target marker is placed a distance from a laser beam source and the target marker has a GPS tracker thereon, wherein the laser beam source tracks the precise location of the target marker through the GPS tracker. The laser beam is then aimed at the location of the GPS tracker, or at a location an offset distance, such as displaced vertically downward under the ground such that the laser beam is aimed at the location within a trench for positioning pipe therein.