Patent ID: 8998344
Filing Date: 2015-04-07
Classification: E01C

Abstract:
1. A self-propelled building machine, comprising: a machine frame; at least one left-hand running gear and at least one right-hand running gear in a direction of working, the running gears configured to support the machine frame from a ground surface; at least one working roller provided on the machine frame and configured to engage and work the ground surface the working roller including a working roller axis; an adjustable support system including left and right adjustable supports configured to raise and lower each of the left-hand and right-hand running gears, respectively, relative to the machine frame to control a position of the working roller axis in relation to the ground surface; and a control unit configured to activate the adjustable support system, the control unit including a sensor system configured to detect lateral tilting movement of the machine frame as a result of sudden changes in a height of the ground surface in relation to the machine frame as the building machine moves between a cut section and an uncut section of an area of the ground surface to be worked, the control unit having a control mode in which the control unit is configured such that when a lateral tilting movement of the machine frame as a result of a sudden change in the height of the ground surface is detected, the adjustable support system is activated such that at least one of the adjustable supports is adjusted to raise or lower at least one of the running gears to compensate for the lateral tilting movement of the machine frame resulting from the sudden change in the height of the ground surface, while maintaining the position of the working roller axis in relation to the ground surface so that the uncut section is cut down to a height of the cut section as the building machine moves across the uncut section.