Electromagnetic actuators for electromechanical valve trains are highly nonlinear devices. The understanding and knowledge of their dynamics are essential for a proper use in such application. In this paper, a simple, yet comprehensive model is used to examine the effect of eddy currents on system dynamics. Furthermore, a voltage driven finite element model is established, which implements the nonlinear magnetic material properties with a modified Weibull distribution. Switch-off experiments with an electromagnetic actuator are carried out and the results are compared with the finite element simulations.
Transients of Electromagnetic Valve Train (EMVT) Actuators
Sae Technical Papers
SAE 2004 World Congress & Exhibition ; 2004
08.03.2004
Aufsatz (Konferenz)
Englisch
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