Hamm Ag

Werner Völkel

Sebastian Villwock

Fritz Kopf

Johannes Pistrol

Stefan Braunschläger

Dietmar Adam

Tobias Fehr

Andreas Baumann

Christian Eichhorn

Mario Hager

A method for providing information related to the compaction state of soil when performing a compaction operation with a soil compactor includes: a) detecting a vertical acceleration and a horizontal acceleration of a vibratory roller when moving a soil compactor over soil to be compacted, b) determining a measurement relationship between a ground contact force and a deflection of the vibratory roller for one vibration cycle using the vertical acceleration and horizontal acceleration detected in operation a), c) determining a simulation relationship between the ground contact force and the deflection for one vibration cycle using a ground model taking into account at least one simulation parameter, d) comparing the simulation relationship to the measurement relationship, and e) determining that a default value of the at least one simulation parameter taken into account in the ground model substantially represents a corresponding soil parameter of the soil to be compacted when the simulation relationship substantially corresponds to the measurement relationship.

Method for providing information related to the compaction state of a soil when performing a compaction operation with a soil compactor

According to one example, a working machine includes a projection arrangement to generate a hologram, wherein the hologram presents a virtual operating element or a virtual display and a movement/position detection arrangement to detect a movement or a position of an operator. The working machine of the example also includes a control unit to control the operation of the working machine based on the detected movement or position of an operator and based on the basis of the hologram generated by the projection arrangement, wherein the projection arrangement is to generate the hologram at different positions or with different content in association with different operating positions to be assumed by an operator on an operator platform or the movement/position detection arrangement is designed to detect the movement or the position of an operator in different operating positions on the operator platform.

Methods, systems, apparatus, and articles of manufacture to control a holographic display of a vehicle

A soil compactor includes at least one compactor roller, which is free to rotate about an axis of rotation of the roller, with a plurality of roller segments, which follow one another along the direction of the axis of rotation of the roller. In each case, at least one electromotive drive for producing an oscillating torque is assigned to each roller segment.

Soil compactor

A construction machine comprises: a system region that can be rotated about an axis of rotation relative to a machine frame; at least one electrical load () in the rotatable system region; and an induction energy-transfer assembly () for wirelessly transferring energy into the rotatable system region, the induction energy-transfer assembly () comprising a transmitting assembly () having at least one transmitting coil () and, in the rotatable system region, a receiving assembly () having at least one receiving coil ().

Construction machine

A construction machine includes a system area rotatable about an axis of rotation with respect to a machine frame. On the rotatable system area is at least one sensor, a data transmission unit with at least one transmission antenna, and a first data transmission arrangement for transmitting data from the at least one sensor to the data transmission unit. On the machine frame is a data receiving unit with at least one receiving antenna, a data evaluation system, and a second data transmission arrangement for transmitting data from the data receiving unit to the data evaluation system. The data transmission unit has at least two transmission antennas and/or the data receiving unit has at least two receiving antennas.

A method for determining the compaction state of a subgrade to be compacted using a roller compactor comprising at least one compactor drum having an oscillation-inducing arrangement and rotatable about a drum axis of rotation comprising the following steps: during at least one period of oscillating movement of the compactor drum, repeatedly determining the acceleration of the compactor drum in an first direction, representing a first acceleration value; in association with each first acceleration value, determining an acceleration of the compactor drum in a second direction representing a second acceleration value in order to provide acceleration value pairs, each consisting of a first acceleration value and a second associated acceleration value; and for at least one oscillation period, defining a compaction state value representing the compaction state of the subgrade based upon the period of oscillation determined for said acceleration value pairs.

Method for determining the compaction state of substrate

A method is provided for the correction of a measured value curve by eliminating periodically occurring measurement artifacts. The method includes steps of

Method for the correction of a measured value curve by eliminating periodically occurring measurement artifacts, in particular in a soil compactor

A soil compactor, including at least one compactor roller, which is free to rotate about an axis of rotation of the roller, with a plurality of roller segments, which follow one another along the direction of the axis of rotation of the roller, wherein, in each case, at least one electromotive drive for producing an oscillating torque is assigned to each roller segment.

A device for detecting the motion of a rotatable compactor roller about a compactor roller axis of rotation includes at least one motion sensor and an energy supply for the at least one motion sensor. The energy supply includes a generator having a stator and a rotor rotatable about a rotor axis of rotation with respect to the stator.

Device for detecting the motion of a compactor roller

Device to determine a size of contact representing a contact state between a compactor roller and a substrate to be compacted, encompassing a compactor roller rotatable in at least one acquisition circumference area around a compactor roller axis and at least one contact sensor generating a contact signal, wherein the contact signal indicates a contact start and a contact end of an acquisition circumference area upon the substrate to be compacted.

Device and procedure to determine a size of contact representing the contact state of a compactor roller upon the substrate to be compacted

A method to determine a slip state of the compactor roller of a soil compactor caused by an oscillation motion of a compactor roller, comprising the steps:

Method to determine a slip state of the compactor roller of a soil compactor caused by an oscillation motion of a soil compactor

A device for detection of the motion of a compactor roller () of a soil compactor () rotatable about an axis of rotation (A), where said roller comprises on one inside of a roller mantle () a plurality of motion sensors (a) arranged in the circumferential direction around the axis of rotation (A) and at a spacing from each other and moveable with the roller mantle () around the axis of rotation (A).

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Neustadt, Germany

Werner Völkel