Bomag Gmbh

Bomag Gmbh & Co., Ohg

Moritz Nick

Hermann Christ

Irina Hagen

Niels Laugwitz

Michael Witsch

A road paver is provided with a drive, a bunker, a material conveying device, a screed comprising a tamping device and an electric heating device on the screed and/or on the tamping device, wherein a control unit is configured in such a manner that it determines, by means of a measurable electrical operating parameter of the electrical heating device on the screed and/or on the tamping device, the weight and/or the center of gravity and/or the width of the screed transversely to the working direction of the screed. A method for determining a width and/or a weight and/or a center of gravity of a screed of a road paver, comprising the steps: measuring an electrical variable of a heating device, in particular a heating power, a heating resistance or a power consumption of the heating device; calculating the weight and/or the center of gravity and/or the width of the screed transversely to the working direction of the screed by means of the electrical operating variable.

Road paver with control unit for determining the weight and/or the center of gravity and/or the width of the screed and corresponding method

The present invention relates to a method for operating a hydraulic system of a self-propelled road paver, in particular, for the supply of hydraulic oil as needed to a closed hydraulic circuit of the road paver, a hydraulic system of a road paver for performing the method and a road paver having such a hydraulic system. The extraction and/or return of the quantity of hydraulic oil occur depending on at least one operating parameter of the road paver.

Method for operating a hydraulic system of a self-propelled paver, hydraulic system, especially for using the method, and paver with such a hydraulic system

The present invention relates to a device and method for ascertaining the steering angle (&#x3b1;) of at least one steerable wheel of a set of steerable wheels of a machine that can be directionally controlled, which machine comprises at least said set of steerable wheels and at least one set of drivable wheels showing a specific wheelbase (a) relative to said steerable wheels and spaced from one another by a specific track width (b), wherein by means of an ascertained wheel velocity difference of the two driven wheels a yaw rate (&#x3c8;) and a real circle radius (r) of the driven wheel on the inside of the curve are ascertained. It is then possible to ascertain the steering angle (&#x3b1;) from these values by way of the geometrical relationship of wheelbase (a) and track width (b) of the machine.

Method and device for ascertaining the steering angle of a steerable machine

The invention relates to a self-propelled construction machine, for example, a road finisher, comprising a vehicle chassis and having a tandem axle unit and a single wheel on each side of the vehicle, wherein each tandem axle unit comprises a twin axle carrier and also a regulating device, by means of which the twin axle carrier can be pivoted relatively to the vehicle chassis. Each tandem axle unit is mounted on a lever arm, which is mounted for rotation about a pivot axle on the vehicle chassis, and which is engaged by the regulating device.

Self-propelled construction machine

A road paver for laying road construction material comprises a tamping beam, a bunker for receiving road construction material, a wheeled chassis with a rear axle and a steerable front axle, and a hydraulic arrangement for permanent or optionally selectable drive of hydraulic motors which are coupled to the front wheels. A method for tractive power control and for drive slip limitation of the front drive of a road paver is also disclosed.

Growing community of inventors

Boppard, Germany

Moritz Nick