A control system for a sugarcane harvester. The sugarcane harvester comprises lower feed rollers and upper feed rollers configured to feed cut sugarcane through the sugarcane harvester. An elevator is configured to transport sugarcane out of the sugarcane harvester at an elevator speed. The control system controls the elevator speed based on a crop mass flow through the plurality of lower and upper feed rollers. The control system comprises at least one crop mass flow feedback device providing a crop mass flow feedback signal indicative of the crop mass flow. A controller is in communication with the at least one crop mass flow feedback device and configured to lower the elevator speed when the crop mass flow feedback signal indicates a lower crop mass flow and raise the elevator speed when the crop mass flow feedback signal indicates a higher crop mass flow.
