Title :
Control of an electromechanical actuator for camless engines
Author :
Tai, Chun ; Tsao, Tsu-Chin
Author_Institution :
Dept. of Mech. & Aerosp. Eng., California Univ., Los Angeles, CA, USA
Abstract :
This paper presents a gray box approach for identifying physical parameters of an electromechanical actuator based on frequency response data. A feedforward and linear-quadratic regulator feedback controller was developed to control the EMCV actuator for soft seating. A repetitive learning controller was designed to enhance the control performance through cycle-to-cycle iterations. Experimental results achieved 0.61 m/s valve seating speed with 0.02 m/s standard deviation.
Keywords :
actuators; feedback; feedforward; internal combustion engines; iterative methods; learning systems; linear quadratic control; valves; 0.028 m/s; 0.61 m/s; LQR; camless engine; cycle-to-cycle iterations; electromechanical actuator; electromechanical camless valvetrain; feedforward controller; frequency response data; gray box approach; learning controller; linear-quadratic regulator feedback controller; physical parameter identification; soft seating; standard deviation; valve seating speed; Actuators; Adaptive control; Control design; Couplings; Engines; Open loop systems; Pulse amplifiers; Pulse width modulation; Valves; Velocity control;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1244007
