An observer for sensorless variable valve control in camless internal combustion engines

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

Camless internal combustion engines offer improvements over traditional engines, in terms of increased torque performance and fuel economy, and decreased emissions and pumping losses. Theoretically, their control flexibility provides electromagnetic valve actuators with the highest potential for improving efficiency. Sensorless control is one of the most important issues with implementations of this new technology. The main contribution of this paper is the proposal of a hysteresis hybrid observer that combines an extended Kalman filter and hybrid automation, resulting in a sensorless control. The proposed hysteresis strategy allows the avoidance of not only chattering problems but to trade with possible not observable sets. Current is measured and position as well as velocity of the electromagnetic valve are estimated. Real measured data are used to show the effectiveness of the proposed method.

Original languageEnglish
Title of host publication6th IFAC Symposium Advances in Automotive Control, AAC 2010
EditorsAnsgar Trächtler, Dirk Abel
Number of pages6
PublisherInternational Federation of Automatic Control
Publication date2010
Pages306-311
ISBN (print)978-1-617-82550-7
ISBN (electronic)9783902661722
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event6th IFAC Symposium on Advances in Automotive Control - 2010 - München, Germany
Duration: 12.07.201014.07.2010
Conference number: 6
http://www.wikicfp.com/cfp/servlet/event.showcfp?eventid=9860&copyownerid=11838

    Research areas

  • Actuators, Estimation, Hybrid observer, Kalman filter, Chattering problems, Electromagnetic valves, Hybrid automation, Improving efficiency, Pumping loss, Real measured data, Sensor less control, Sensorless, Valve control, Combustion, Electromagnetism, Engines, Fuel economy, Hysteresis, Kalman filters, Internal combustion engines
  • Engineering

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