Abstract: A method for controlling a bowl of a scraper is disclosed. The method includes receiving a signal from an input device, the signal is indicative of a mode of operation of the scraper, determining a cycle of operation of the scraper associated with the mode of operation, and controlling the bowl based in part on a sequence of parameter settings generated by a control system. The control system is configured to generate the sequence of parameter settings based in part on the cycle of operation of the scraper.

Abstract: A method for proportional state space based scheduling of gain within a machine includes generating a speed error value and when the speed error value is substantially nonzero producing an implement position difference value representing the amount by which an implement position differs from a position that would provide a desired machine speed. The method then converts the implement position difference value to a desired implement position command and differences the desired implement position command and a position signal indicative of the current implement position to produce an implement difference value.