Car Hybrid Propulsion Strategy Using an Ultra-Light GDI Two Stroke Engine

Investigation into a stepped-piston engine solution for automotive range-extender vehicles and hybrid electric vehicles to meet future green transportation objectives

“…A limit to the number of cylinders can be imposed to minimise cost as demonstrated by the work of Bassett et al [4] or Mattarelli et al [2][6] where parallel twin cylinder units have been considered. Horizontally opposed flat twin engines have also been considered for HEV application as demonstrated by the Peugeot Citroen Dynavolt system and the research published by Stan and Personnaz [5].…”

“…Horizontally opposed flat twin engines have also been considered for HEV application, as demonstrated by the Peugeot Citroen Dynavolt system and the research published by Stan and Personnaz. 5…”

“…This power plant is shown in Fig 5 as an electrical power generator engine for marine application. The power output of the 290 cm³ would preclude use for large RE-EVs however the output of 17.7 kW is comparable with the output achieved by the Peugeot Citroen Dynavolt series hybrid vehicle [5]. The two cylinder unit is based upon the larger V-4 cylinder engine technology and provides a starting point for comparison with a similar output two-cylinder four stroke engine.…”

“…Two cylinder possibilities have been researched such as four stroke units by the work of Bassett et al [4] and some examples of two stroke cycle engines have been considered such as the work of Stan et al [5] and Mattarelli et al [2] [6]. Whichever fundamental choice between two or four stroke cycle is taken for the power plant stringent emissions targets must be meet.…”

Low noise, vibration and harshness solutions for in-line three-cylinder range extender and hybrid electric vehicles

“…Most research has been performed in this area with balance shaft application with four-stroke inline three-cylinder units as the subject engine [6][7][8][9][10]. Two-stroke cycle engines for range extenders or hybrid drive train have been researched by Stan and Personnaz [11], Mattarelli et al [12], Borgi et al [13] and Hooper [14] [15]. Some researchers have considered the in-line three-cylinder twostroke cycle engine as a suitable candidate as demonstrated by the work of Duret et al [16], Schlunke [17], Cantore and Mattarelli [18], Mattarelli [19] and Mattarelli and Rinaldini [20], but none of these examples applied a balance shaft.…”