In this paper, an event-based sampled discrete-time linear system representing a port-fuel-injection process based on wall-wetting dynamics is obtained and formulated as a linear parameter varying (LPV) system. The system parameters used in the engine fuel system model are engine speed, temperature, and load. These system parameters can be measured in real time through physical or virtual sensors. A gain-scheduling controller for the obtained LPV system is then designed based on the numerically efficient convex optimization or linear matrix inequality (LMI) technique. A hardware-in-the-loop (HIL) simulation is performed to validate the gain-scheduling controller on a mixed mean-value and crank-based engine model. The HIL simulation results show the effectiveness of the proposed gain-scheduling controller.
Bibliographical noteFunding Information:
Manuscript received March 22, 2010; revised August 25, 2010; accepted November 13, 2010. Manuscript received in final form November 19, 2010. Date of publication January 06, 2011; date of current version September 16, 2011. This work was supported in part by the Department of Energy under Grant DE-FC26-07NT43275. Recommended by Associate Editor K. Ropke.
Dr. Choi is a recipient of the National Science Foundation CAREER Award in 2009. He is a member of the ASME.
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering