Liebherr-werk Nenzing Gmbh

Liebherr-werk Nenzing Ges.m.b.h

Norbert Krimbacher

Martin Amann

Martin Dipl-Ing Amann

The present disclosure relates to a method for determining the delivery rate of a liquid conveying device, in particular a concrete pump, wherein on the basis of measured values concerning the pressure of the liquid the number of the pump strokes of the concrete conveying device is determined, in particular substantially calculated, by series-connection of a plurality of filters with adaptive filter length and variable detection limits. Furthermore, the present disclosure relates to a liquid conveying device and to a construction vehicle with a liquid conveying device.

Method for determining the delivery rate of a liquid conveying device

In a method and device for controlling a hydraulic drive system, in particular in a crane or construction machine, a closed hydraulic circuit has a hydraulic pump and motor in which depending upon a desired value (n) of an output parameter of the hydraulic circuit, an actuating signal (I) is generated for adjusting the hydraulic pump and/or motor. The actuating signal (I) is limited and/or reduced by a superordinate control module () depending on matching of a specified power value (P; P) with a current power value (P; P) of the hydraulic pump and/or motor.

Method and device for controlling a hydraulic drive system

The present disclosure relates to a commercial vehicle with a control unit connected with the drive of the commercial vehicle and to a method for controlling a commercial vehicle.

Commercial vehicle with control means and method for controlling commercial vehicle

The present invention generally relates to a method and a device for controlling a drive system, in particular a hydraulic traveling drive of a crane, a caterpillar, an industrial truck or a construction machine, which has at least one drive unit for an element to be driven. The invention relates to a control device for controlling such drive system, comprising a control signal circuit for providing an actuating signal for adjusting the at least one drive unit in dependence on a specified desired value of an output parameter as well as a specified power limit value for the at least one drive unit.

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Satteins, Austria

Norbert Krimbacher