Modeling automotive gas-exchange solenoid valve actuators

• Published in: IEEE transactions on magnetics Vol. 41; no. 3; pp. 1155 - 1162
• Main Authors: Chladny, R.R., Koch, C.R., Lynch, A.F.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.03.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Actuators; Automotive components; Automotive engineering; Computer simulation; Cross-disciplinary physics: materials science; rheology; Design engineering; Design optimization; Eddy currents; Engines; Exact sciences and technology; Finite element method; Finite element methods; magnetic losses; Magnetism; Materials science; Mathematical models; modeling; Other topics in materials science; Physics; Prototypes; Solenoids; Testing; Transient analysis; Valves; Actuators; magnetic losses; modeling; Valves; finite-element method; Engines; Finite element method; Iron loss; Automotive industry; Modelling; Application; Eddy currents; solenoids; Magnetic properties
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2004.841701

We develop a finite-element analysis (FEA) model to describe transient and static operation of gas-exchange valves. Such valves, directly controlled by solenoids, are a promising method for enhancing automotive engine efficiency. The FEA model is validated by experimental testing on an actual automotive prototype valve. We show that a nonlinear lumped-parameter model that uses FEA results also closely matches experimental data. The lumped-parameter model is suitable for optimization of design and can be readily used for closed-loop simulation. We present a simplified lumped-parameter model to facilitate controller design. Finally, we compare a dynamic open-loop simulation with experimental results.