The present invention comprises multiple embodiments of an automated, dynamic cover plate system, which may be quickly attached, detached and adjusted to the exterior of a concave grate of a combine harvester in order to adjust the flow characteristics of the concave or separator grate assemblies. The automated, dynamic cover plate system improves the threshing capability of the rasp bar threshing cylinder while simultaneously capturing additional threshed grain. The automated, dynamic cover plate system of the present invention is designed to be controlled, either manually or automatically, by the operator of the combine harvester or by a computerized or automated intelligence system.
