Patent ID: 11866893
Assignee: WIRTGEN GMBH
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A method for operating a self-propelled construction machine having a milling drum for machining the ground, the height of which drum is adjustable with respect to a surface of the ground to be machined such that material is removed from the ground, the method comprising:
when an advance speed of the construction machine is zero, lowering the milling drum to a first position wherein a lower edge of a cutting circle of the milling drum is at a level of the surface of the ground, wherein a milling depth of the milling drum is calibrated to zero;
while the advance speed of the construction machine is still zero, lowering the milling drum from the first position into a second position wherein the lower edge of the cutting circle of the milling drum is at a distance from the level of the surface of the ground corresponding to an initial specified milling depth;
while machining the ground at an advance speed above zero, continuously adjusting a position of the milling drum, dependent on a type of the milling drum, the advance speed of the construction machine, and a rotation speed of the milling drum, wherein the specified milling depth is corrected to correspond to a desired milling profile; and
when the construction machine returns to an advance speed of zero, raising the milling drum to at least a position wherein the lower edge of the cutting circle of the milling drum is at a distance from the level of the surface of the ground corresponding to a current specified milling depth.