Title :
Dynamic modeling of piezoelectric injector-enabled rate shaping
Author :
Le, Dat ; Jin Shen ; Ruikar, Neha ; Shaver, Gregory M.
Author_Institution :
Sch. of Mech. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
Piezoelectric fuel injectors provide a means to lower emissions, noise and fuel consumption in advanced IC engines by enabling complex injection rate profiles - referred to a “rate shaping”. However, consideration of the flow rate non-linearity, piezostack hysteresis, and hydro-mechanical dynamics is required to achieve precise control of rate shaping. The goal of the effort described here is to develop, and experimentally validate a model of a piezoelectric fuel injector during rate-shaping operating conditions.
Keywords :
control nonlinearities; fuel economy; fuel systems; hydrodynamics; internal combustion engines; piezoelectric devices; IC engines; complex injection rate profiles; dynamic piezoelectric injector-enabled rate shaping modeling; emission reduction; flow rate nonlinearity; fuel consumption reduction; hydromechanical dynamics; noise reduction; piezoelectric fuel injectors; piezostack hysteresis; rate shaping control; rate-shaping operating conditions; Equations; Fuels; Hysteresis; Mathematical model; Needles; Rails; Snubbers;
Conference_Titel :
American Control Conference (ACC), 2013
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4799-0177-7
DOI :
10.1109/ACC.2013.6580395
