Modeling and Optimization of a Linear Actuator for a Two-Stage Valve Tappet in an Automotive Engine

This paper focuses on external volume and power consumption optimization of an electromagnetic actuator used to move pins in a two-stage variable valve lift component within an automotive engine. This system is designed to change the valve lift at each engine cycle. To achieve this optimization, thr...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2015-10, Vol.64 (10), p.4441-4448
Main Authors: Duchaud, Jean-Laurent, Hlioui, Sami, Louf, Francois, Ojeda, Javier, Gabsi, Mohamed
Format: Article
Language:English
Subjects:
Actuators
Automotive components
Automotive engines
Computational modeling
Dynamical systems
dynamics
Electric power
electromagnetics
Engineering Sciences
finite element analysis
Force
Lift
Mathematical model
modeling
Optimization
particle swarm optimization
Pins
Springs
Valves
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Summary:This paper focuses on external volume and power consumption optimization of an electromagnetic actuator used to move pins in a two-stage variable valve lift component within an automotive engine. This system is designed to change the valve lift at each engine cycle. To achieve this optimization, three models were developed: a magnetic, an electric, and a dynamic model. They evaluate the performances of a given actuator, check if it fulfills its role, and define the springs needed for the displacement of the pins. The optimization is made using a particle swarm method and can reduce the volume up to 20% with the same electric consumption.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2014.2372817