Patent ID: 9702096
Date: 2017-07-11
CPC Classifications: B62D,E01C

Claim:
1. An automotive construction machine, comprising: a machine frame having a working direction; at least one front running gear and at least one rear running gear configured to support the machine frame from a ground surface; a rearward device supported from the machine frame rearward of the front running gear; front and rear lifting systems connected between the machine frame and the front and rear running gears, respectively, for adjusting a height and orientation of the machine frame relative to the ground surface; and a control unit operably associated with the lifting systems, the control unit being configured such that: the front lifting system is controlled such that the machine frame remains in a predetermined orientation with respect to the ground surface in the working direction as the construction machine advances; and unevenness of the ground surface is compensated for in regard to a height of the rearward device relative to the ground surface with a time delay in response to control of the front lifting system.