NDLI: Trajectory generation for camless internal combustion engine valve control

Content Provider	IEEE Xplore Digital Library
Author	Montanari, M. Ronchi, F. Rossi, C.
Copyright Year	2003
Description	Author affiliation: CASY-DEIS, Bologna Univ., Italy (Montanari, M.; Ronchi, F.; Rossi, C.)
Abstract	Camless internal combustion engines offer major improvements over traditional engines in terms of efficiency, maximum torque and power, pollutant emissions. Electromechanical valve actuators are very promising in this context, but still present significant control problems. Low valve seating velocity, small transition time for valve opening and closing, unavailability of position sensor are the main objectives to be considered in the design of the valve control system. Actuator physical limitations strongly influence the feasible trajectory when low valve seating velocity is required, thus affecting valve transition time. One key point for the control is the design of the reference trajectory to be tracked by the closed loop controller. In this paper, the trajectory design is addressed, solving an optimization parametric problem that explicitly considers the physical constraints and the trade-off between fast dynamic performance and system robustness.
Sponsorship	Ind. Electron. Soc. IEEE COPPE-Federal Univ. of Rio de Janeiro
Starting Page	454
Ending Page	459
File Size	620515
Page Count	6
File Format	PDF
ISBN	0780379128
DOI	10.1109/ISIE.2003.1267292
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-06-09
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Internal combustion engines Valves Actuators Open loop systems Torque Pollution Electromechanical sensors Sensor systems Velocity control Control systems
Content Type	Text
Resource Type	Article

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