1. A combine harvester, comprising: a threshing unit for threshing picked-up crop to obtain grain; and a driver assistance system for controlling the threshing unit ( 1 ), wherein the driver assistance system comprises a memory for storing data and a computing unit for processing the data stored in the memory; wherein the threshing unit, together with the driver assistance system, forms an automated threshing unit; wherein a plurality of selectable harvesting-process strategies is stored in the memory; and wherein in order to implement a particular selected harvesting-process strategy, of the plurality of selectable harvesting-process strategies, the computing unit autonomously determines at least one machine parameter and specifies the machine parameter to the threshing unit.