Title :
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
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;
Conference_Titel :
American Control Conference (ACC), 2013
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4799-0177-7
DOI :
10.1109/ACC.2013.6580392
