@inbook{b4e6fb0756ee4c5d80457bfaece34734,

title = "Optimal trajectory generation for camless internal combustion engine valve control",

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 for the control is the design of the reference trajectory to be tracked by the closed loop controller. In this paper an optimal trajectory design technique aimed at minimizing power consumption is proposed. An optimization problem that explicitly considers the physical constraints of the system is formulated and a suboptimal solution is derived by exploiting local flatness of the system.",

keywords = "Engineering",

author = "Antonio Fabbrini and D. Doretti and Steffen Braune and Andrea Garulli and Paolo Mercorelli",

note = "Conference code: 75770 Export Date: 22 May 2012 Source: Scopus Art. No.: 4757970 doi: 10.1109/IECON.2008.4757970 Language of Original Document: English Correspondence Address: Fabbrini, A.; Department of Information Engineering, University of Siena, Via Roma 56, 53100 Siena, Italy References: Braune, S., Kramer, K.-D., Untersuchungen zu elektromotorischen ventilaktuatoren (2007) Variable Valve Control, , 13-14 February; Braune, S., Liu, S., Mercorelli, P., Design and control of an electromagnetic valve actuator (2006) Proc. IEEE Control Conference Applications; Butzmann, S., Melbert, J., Koch, A., Sensorless control of electromagnetic actuators for variable valve train (2000) Proc. SAE Technical Paper 2000-01-1225; Faiz, N., Agrawal, S., Murray, R., Trajectory planning of differentially flat systems with dynamics and inequalities (2002) J. Guidance, Control, and Dynamics, 24 (2), pp. 219-227; Hoffmann, W., Stefanopoulou, A.G., Iterative learning control of electromechanical camless valve actuator (2001) Proc. of American control conference; (2005), The Mathworks Inc. Matlab Optimization ToolboxPeterson, K.S., (2005) Control Methodologies for Fast and Low Impact Electromagnetic Actuators for Engine Valves, , PhD Thesis, University of Michigan; Kubasiak, N., Mercorelli, P., Liu, S., Model predictve control of transistor pulse modulation for feeding electromagnetic valve actuator (2005) IEEE International Conference on Decision and Control, , 12th-15th December; Mercorelli, P., Liu, S., Lehmann, K., Robust flatness based control of an electromagnetic linear actuator using adaptive pid controller (2003) 42nd IEEE Conference on Decision and Control; Schlechter, M.M., Levin, M.B., Camless engine (1996) SAE Paper (SAE1996), , SAE 960581; Montanari, M., Ronchi, F., Rossi, C., Trajectory generation for camless internal combustion engine valve control (2003) Proc. International Symposium on Industrial Electronics; Ahmed, T., Theobald, M.A., A survey of variable valve actuation technology (1989) SAE Paper (SAE1989), , SAE 891674; Tai, C., Tsao, T., Control of an electromechanical actuator for camless engines (2003) Proceedings of the American control conference Sponsors: IEEE Industrial Electronics Society; Society of Instrument and Control Engineers, SICE; Auburn University; University of Seville; Universidade Nova de Lisboa; Universita degli Studi di Catania; 34th Annual Conference of the IEEE Industrial Electronics Society - IECON 2008, IECON 2008 ; Conference date: 10-11-2008 Through 13-11-2008",

year = "2008",

month = nov,

day = "1",

doi = "10.1109/iecon.2008.4757970",

language = "English",

isbn = "9781424417667",

series = "IEEE Industrial Electronics",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

pages = "303--308",

booktitle = "Proceedings - 34th Annual Conference of the IEEE Industrial Electronics Society, IECON 2008",

address = "United States",