The near deadbeat control design was applied to an aeroengine speed simulation system for flight handling simulation.High power demand of the aeroengine speed simulation system can be met by adopting a type of electrohydraulic pump controlled motor system.But the desired dynamic properties are difficultly obtained under the condition of large step imput amplitude.According to the idea of deadbeat control

a method of quasi-deadbeat control design is proposed to overcome the difficulty.The experiments testified the effectiveness of the presented design.