Free-piston diesel engines are characterized by freely moving pistons without any crankshaft or camshaft connected to the pistons. This allows a compact and efficient engine design, but requires automatic control of the piston motion. This paper present a dynamic mathematical model of a free-piston diesel engine, and a control oriented dynamic analysis leading to a piston motion control structure. Experimental results using a full scale test cylinder are included and show feasibility of the suggested control approach.

Issue Section:
Technical Papers
Keywords:
internal combustion engines, motion control, combustion, dynamics
Topics:
Diesel engines, Pistons, Dynamics (Mechanics), Cylinders, Motion control, Combustion
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