SELF-PROPELLED CONSTRUCTION MACHINE AND METHOD FOR PROCESSING FLOOR COVERINGS

DRIVE November 30, 2022
Source
For a self-propelled construction machine (1), in particular a road milling machine, recycler, stabilizer or surface miner, comprising a machine frame (4), at least three drive devices (2), at least one hydraulic drive system (50) for driving at least two drive devices (2), wherein the hydraulic drive system comprises at least one adjustable hydraulic motor with variable displacement and at least one hydraulic pump, at least one working device, in particular a milling drum (6), for processing the ground surface (3), it is provided that a detection device (44, 60, 62) is provided which detects fluctuations in the longitudinal speed (v) of the construction machine (1) during movement of the construction machine (1), wherein depending on the detected fluctuations a control unit (38) changes the displacement of the at least one adjustable hydraulic motor such that the natural frequency of the hydraulic drive system of the construction machine is changed, wherein the control unit (38) adapts the delivery volume of the pump depending on the magnitude of the displacement of the displacement such that the predetermined drive speed (v) remains constant.

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