Systems and methods for a split exhaust engine system

A system for an engine, comprising:

• a plurality of engine cylinders, each including a first exhaust valve of a first set of exhaust valves and a second exhaust valve of a second set of exhaust valves;
• a first exhaust manifold coupled to the first set of exhaust valves and configured to route exhaust to a turbine disposed in an exhaust passage, the first set of exhaust valves coupled exclusively to the first exhaust manifold;
• a second exhaust manifold coupled to the second set of exhaust valves, the second set of exhaust valves coupled exclusively to the second exhaust manifold;
• an exhaust gas recirculation (EGR) valve disposed in an EGR passage coupled between and directly to each of the second exhaust manifold and an intake passage, upstream of a compressor driven by the turbine, the compressor arranged upstream of an intake manifold coupled to intake ports of a first set of intake valves and intake ports of a second set of intake valves;
• a set of charge motion control valves coupled to the intake ports of the first set of intake valves;
• and
• a controller configured to close the set of charge motion control valves to at least partially block flow into each cylinder from the first set of intake valves during a positive valve overlap period between the first set of intake valves, the second set of intake valves, and the second set of exhaust valves, in response to the EGR valve being at least partially open.