DocumentCode :
1262892
Title :
A Trajectory Generation Algorithm for Optimal Consumption in Electromagnetic Actuators
Author :
Fabbrini, Antonio ; Garulli, Andrea ; Mercorelli, Paolo
Author_Institution :
Dept. of Inf. Eng., Univ. of Siena, Siena, Italy
Volume :
20
Issue :
4
fYear :
2012
fDate :
7/1/2012 12:00:00 AM
Firstpage :
1025
Lastpage :
1032
Abstract :
Camless internal combustion engines offer improvements over traditional engines in terms of torque performance, reduction of emissions, reduction of pumping losses and fuel economy. Theoretically, electromagnetic valve actuators offer the highest potentials for improving efficiency due to their control flexibility. For real applications, however, the valve actuators developed so far suffer from high power consumption and other control problems. One key point is the design of the reference trajectory to be tracked by the closed loop controller. In this brief, a design technique aimed at minimizing power consumption is proposed. A constrained optimization problem is formulated and its solution is approximated by exploiting local flatness and physical properties of the system. The performance of the designed trajectory is validated via an industrial simulator of the valve actuator.
Keywords :
closed loop systems; control system synthesis; electromagnetic actuators; fuel economy; fuel pumps; internal combustion engines; minimisation; motion control; power consumption; torque; trajectory control; valves; camless internal combustion engines; closed loop controller; constrained optimization problem; control flexibility; electromagnetic valve actuators; emission reduction; fuel economy reduction; high power consumption; industrial simulator; local flatness; optimal consumption; physical properties; power consumption minimization; pumping loss reduction; reference trajectory tracking; solution approximation; torque performance; trajectory design; trajectory generation algorithm; Actuators; Electromagnetics; Engines; Optimization; Torque; Trajectory; Valves; Cost function; electromagnetic devices; motion control; optimization; trajectory design;
fLanguage :
English
Journal_Title :
Control Systems Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
1063-6536
Type :
jour
DOI :
10.1109/TCST.2011.2159006
Filename :
5936653
Link To Document :
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