Electro-Mechanical Valve Actuators (EMVA) are a promising solution to actuate engine valves for future camless engines. Their use can increase engine power, reduce fuel consumption and pollutant emissions, and improve significantly engine efficiency. This paper is concerned with the soft landing control of a double magnet EMVA system. In particular, a force control algorithm based on a combined feedforward and feedback sliding mode control actions is presented. The aim of the control is to stabilize the system while tracking a model-based reference trajectory. It is shown by numerical simulations that the proposed control approach guarantees soft landing operation even in the presence of external force perturbations and friction force variations
Model-Based Soft Landing Control of an Electromechanical Engine Valve Actuator / DI BERNARDO, Mario; A., di Gaeta; C. I., Hoyos Velasco; U., Montanaro; Santini, Stefania. - STAMPA. - 2:(2012), pp. DSCC2012-MOVIC2012-8526.87-DSCC2012-MOVIC2012-8526.94. (Intervento presentato al convegno ASME 2012 5th Annual Dynamic Systems and Control Conference joint with the JSME 2012 11th Motion and Vibration Conference tenutosi a Florida, USA nel Ottobre 2012) [10.1115/DSCC2012-MOVIC2012-8526].
Model-Based Soft Landing Control of an Electromechanical Engine Valve Actuator
DI BERNARDO, MARIO;SANTINI, STEFANIA
2012
Abstract
Electro-Mechanical Valve Actuators (EMVA) are a promising solution to actuate engine valves for future camless engines. Their use can increase engine power, reduce fuel consumption and pollutant emissions, and improve significantly engine efficiency. This paper is concerned with the soft landing control of a double magnet EMVA system. In particular, a force control algorithm based on a combined feedforward and feedback sliding mode control actions is presented. The aim of the control is to stabilize the system while tracking a model-based reference trajectory. It is shown by numerical simulations that the proposed control approach guarantees soft landing operation even in the presence of external force perturbations and friction force variationsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
