Integrated design of linear alternator/engine system for HEV auxiliary power unit

The effects of key parameters on the transition from SI combustion to HCCI combustion in a two-stroke free piston linear engine

“…In addition, the simulation results also show that the electric power output is decreased as the engine load is increased. This is also suitable with results in previous study for the free piston linear engine [45].…”

A review of free-piston linear engines

“…The electric power output of an FPLE depends on the designation of the linear alternator as well as on the operating and structural parameters of the engine [26,50,53,55,68,72,[83][84][85]. In a simulation study, Li et al [26] investigated the electric power output of an FPLE under the effects of key parameters such as piston assembly mass and ignition timing.…”

“…The high efficiency of a linear alternator combined with the simple structures of a free-piston engine are prompting researchers to further develop FPLEs for hybrid electric vehicles (HEVs). A group of authors from General Motors and West Virginia University [85] provided an integrated design methodology to select a free-piston engine and linear alternator combination for use as an HEV auxiliary power unit. They developed integrated models of the engine and linear alternator and simulated the electric power output while varying system parameters.…”

Effect of fuel injection characteristics on the performance of a free-piston diesel engine linear generator: CFD simulation and experimental results

“…Cristopher M. Atkinson et al at West Virginia University developed a twostroke spark ignition free-piston engine linear generator (FPLG) in the 1990s with the engine bore was 36.5 mm, maximum possible stroke was 50 mm [15][16][17][18][19][20]. The firstly studied the effect of the total heat input, the combustion duration, the reciprocating mass and the load on the operation of the linear generator via simulation models [17][18][19].…”