Title :
Free-piston diesel engine dynamics and control
Author :
Johansen, Tor A. ; Egeland, Olav ; Johannessen, Erling Aa ; Kvamsdal, Rolf
Author_Institution :
Dept. of Eng., Norwegian Univ. Sci. Tech, Trondheim, Norway
Abstract :
Free-piston diesel engines are characterized by freely moving pistons without any rigid crankshaft or camshaft connected to the pistons. This allows a highly 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, a control oriented dynamic analysis, and a novel computer-based piston motion control system. Experimental evaluation of the results on a full scale diesel test cylinder show feasibility of the suggested control approach
Keywords :
computerised control; dynamics; internal combustion engines; automatic motion control; compact efficient engine design; computer-based piston motion control system; control oriented dynamic analysis; dynamic mathematical model; free-piston diesel engine control; free-piston diesel engine dynamics; Automatic control; Camshafts; Control system analysis; Diesel engines; Engine cylinders; Mathematical model; Motion control; Motion planning; Pistons; Testing;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.945701
