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

fYear

2013

fDate

17-19 June 2013

Firstpage

3643

Lastpage

3648

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;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference (ACC), 2013

Conference_Location

Washington, DC

ISSN

0743-1619

Print_ISBN

978-1-4799-0177-7

Type

conf

DOI

10.1109/ACC.2013.6580395

Filename

6580395