NDLI: Nonlinear Regulation of Electromagnetic Valves for Camless Engines

Content Provider	IEEE Xplore Digital Library
Author	Di Gennaro, S. Castillo Toledo, B. Di Benedetto, M.D.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., L' Aquila Univ. (Di Gennaro, S.)
Abstract	Conventional internal combustion engines use mechanical camshafts to command the opening and closing phases of the intake and exhaust valves. The lift valve profile is designed to reach a good compromise among various requirements of the engine operating conditions. In principle, optimality in every engine condition can be attained by camless valve trains. In this context, electromagnetic valves offer an interesting solution, although there are still some relevant open problems to be solved before they can be introduced in production. In fact, to eliminate acoustic noises and avoid damages to mechanical components, the control specifications require sufficiently low impact velocities between the valve and the constraints (typically the valve seat), so that "soft-landing" is obtained. In this paper, the soft-landing problem is translated into a regulation problem for the lift valve profile, by imposing that the valve position tracks a desired reference, while the modeled disturbances are rejected. Both reference and disturbance are generated by an autonomous system, usually called exosystem. The submanifold characterized by the zeroing of the tracking error and the rejection of the disturbance, is determined. Finally, the stabilization problem of the system trajectory on this manifold is solved using state feedback
Starting Page	3577
Ending Page	3582
File Size	228062
Page Count	6
File Format	PDF
ISBN	1424401712
DOI	10.1109/CDC.2006.376793
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Valves Internal combustion engines Actuators Camshafts Linear feedback control systems Mathematical model Velocity control Voltage control Electromagnetic forces Acoustic noise
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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