Title :
Adaptive nonlinear feedforward control of an electrohydraulic camless valvetrain
Author :
Tai, Chun ; Tsao, Tsu-Chin ; Levin, Michael B.
Author_Institution :
Dept. of Mech. & Aerosp. Eng., California Univ., Los Angeles, CA, USA
Abstract :
Camless engine operation offers potential benefits for making a high-performance engine. Control of the peak value of engine valve lift is a critical step in achieving these benefits. Nonlinearities and parameter variations in the valvetrain dynamics restrict the performance that can be achieved by the traditional PID feedback control approach. An adaptive control algorithm is presented with judicious selection of the model structure, adaptation parameters, and controller configuration. The experimental results demonstrate superior transient and steady state performance
Keywords :
adaptive control; automobiles; electrohydraulic control equipment; feedforward; internal combustion engines; nonlinear control systems; transient response; adaptive control; automotive engine; electrohydraulic camless valvetrain; feedforward; model structure; nonlinear control system; transient response; valve lift control; valve timing; Adaptive control; Control systems; Electrohydraulics; Engines; Feedback control; Programmable control; Proportional control; Steady-state; Timing; Valves;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.876651
