Model-Based Boost Pressure Control with System Voltage Disturbance Rejection
2011 (English)In: Proceedings of the 18th IFAC World Congress, 2011 / [ed] Bittanti, Sergio, Cenedese, Angelo, Zampieri, Sandro, International Federation of Automatic Control (IFAC) , 2011, 5058-5063 p.Conference paper (Refereed)
Actuation systems for automotive boost control incorporate a vacuum tank and PWM controlled vacuum valves to increase the boosting system flexibility. Physical models for the actuator system are constructed using measurement data from a dynamometer with an engine having a two stage turbo system. The actuator model is integrated in a complete Mean Value Engine Model and a boost pressure controller is constructed. The developed model is used as basis for a nonlinear compensator, that is capable of rejecting disturbances from system voltage. An IMC based boost pressure controller is developed for the vacuum actuator and engine by using the engine model and then tested on the test cell. The controller performance is quantified and system voltage disturbance rejection is demonstrated.
Place, publisher, year, edition, pages
International Federation of Automatic Control (IFAC) , 2011. 5058-5063 p.
engine, turbocharger, vacuum system, solenoid valve, internal model control, nonlinear compensator
IdentifiersURN: urn:nbn:se:liu:diva-70391DOI: 10.3182/20110828-6-IT-1002.02214ISBN: 978-3-902661-93-7OAI: oai:DiVA.org:liu-70391DiVA: diva2:438921
2011 IFAC World Congress, Milano, Milano, Italy, 28 August - 2 September