ROAD PAVER HAVING LAYER THICKNESS DETECTING DEVICE, AND METHOD FOR DETECTING THE THICKNESS OF AN APPLIED MATERIAL LAYER

摘要

A road paver includes a screed for applying a material layer to a foundation and a layer thickness detecting device for detecting the thickness of the applied material layer. The layer thickness detecting device includes a first sensor for detecting a first distance from the applied material layer and a second sensor for detecting a second distance from the foundation. The layer thickness detecting device is securely attached to the screed.

主权项

1. A road paver comprising:
a screed for applying a material layer to a foundation; a layer thickness detecting device for detecting the thickness of the material layer applied, wherein the layer thickness detecting device comprises a first sensor behind the screed, in the direction of travel, for detecting a first distance from the applied material layer and a second sensor in front of the screed, in the direction of travel, for detecting a second distance from the foundation, and wherein the layer thickness detecting device is immovably attached to the screed; wherein the layer thickness detecting device comprises a signal processing unit, the signal processing unit being configured to detect the layer thickness of the applied material layer on the basis of the sensor signals from the first sensor and from the second sensor, of the distances of the first sensor and of the second sensor from the rear screed edge, and of the attachment heights of the first sensor and of the second sensor relative to the rear screed edge, and wherein the data detected by the layer thickness detecting device regarding the layer thickness is used for actively controlling the road paver with respect to a position of the screed in order to maintain a pre-specified layer thickness.