Model-based within-a-cycle estimation of rate shaping for a piezoelectric fuel injector

Author

Jin Shen ; Ruikar, Neha ; Dat Le ; Shaver, Gregory M.

Author_Institution

Ray W. Herrick Labs., Purdue Univ., West Lafayette, IN, USA

fYear

2013

fDate

17-19 June 2013

Firstpage

3625

Lastpage

3630

Abstract

Piezoelectric fuel injectors provide a means to reduce fuel consumption, noise and emissions in modern IC engines. This paper summarizes an effort resulting in within-a-cycle estimation of injected fuel for “rate shaped” profile. A reduced order model is introduced by simplifying a physically-based, experimentally-validated simulation model. The estimation algorithm is derived from the model, implemented at a “loop time” of 6 μs on an FPGA, is able to make an online prediction of fuel injection rate, and it is experimentally validated.

Keywords

estimation theory; field programmable gate arrays; fuel systems; internal combustion engines; piezoelectric devices; FPGA; IC engines; experimentally-validated simulation model; fuel consumption; fuel injection rate; internal combustion engine; loop time; model-based within-a-cycle estimation; online prediction; physically-based model; piezoelectric fuel injector; rate shaped profile; reduced order model; Estimation; Field programmable gate arrays; Fuels; Mathematical model; Needles; Real-time systems; 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.2013.6580392

Filename

6580392