Patent ID: 11879216
Assignee: WIRTGEN GMBH
Field: Civil engineering (Other fields)
Classification: CPC E  G  B | IPC B  E

Claim 13:
14. The method of claim 13, comprising:
determining whether a portion in which the elevation of the material is greater than the nominal elevation lies on a left or right side of a portion in which the elevation of the material is less than the nominal elevation;
when the portion in which the elevation of the material is greater than the nominal elevation lies on the left side of the portion in which the elevation of the material is less than the nominal elevation, and the spreading plough is on the left side of the portion in which the elevation of the material is greater than the nominal elevation, controlling the spreading plough to be lowered and moved to the right side of the portion in which the elevation of the material is less than the nominal elevation;
when the portion in which the elevation of the material is greater than the nominal elevation is on the left side of the portion in which the elevation of the material is less than the nominal elevation, and the spreading plough is located on the right side of the portion in which the elevation of the material is greater than the nominal elevation, controlling the spreading plough to be first directed to the left side of the portion in which the elevation of the material is greater than the nominal elevation, and then lowered and moved to the right side of the portion in which the elevation of the material is less than the nominal elevation;
when the portion in which the elevation of the material is greater than the nominal elevation is on the right side of the portion in which the elevation of the material is less than the nominal elevation, and the spreading plough is located on the right side of the portion in which the elevation of the material is greater than the nominal elevation, controlling the spreading plough to be lowered and moved to the left side of the portion in which the elevation of the material is less than the nominal elevation; and
when the portion in which the elevation of the material is greater than the nominal elevation is on the right side of the portion in which the elevation of the material is less than the nominal elevation, and the spreading plough is on the left side of the portion in which the elevation of the material is greater than the nominal elevation, controlling the spreading plough to be first moved to the right side of the portion in which the elevation of the material is greater than the nominal elevation and then lowered and moved to the left side of the portion in which the elevation of the material is less than the nominal elevation.