Patent ID: 11873617
Assignee: DEERE & COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 10:
11. A control system for controlling a blade of the mobile work machine, the control system comprising:
one or more processors;
a data store that stores computer executable instructions which, when executed by the one or more processors cause the one or more processors to perform steps of:
receiving a geographic position signal from a geographic position system;
controlling an orientation of the blade, based on the geographic position signal, with a first grade control system;
detecting interruption of the geographic position signal;
detecting an orientation of the blade;
detecting an orientation of a frame of the mobile work machine;
based on detecting the interruption of the geographic position signal, automatically switching to controlling the orientation of the blade with a second automatic grade control system, different from the first grade control system, wherein controlling the orientation of the blade with the second automatic grade control system comprises controlling the orientation of the blade with the second automatic grade control system based on the detected orientation of the blade and the detected orientation of the frame of the mobile work machine;
detecting a presence of the geographic position signal; and
automatically switching to controlling the orientation of the blade with the first grade control system, based on the presence of the geographic position signal.