| 摘要 |
<p>An apparatus for controlling an electromagnetically operated engine valve (3.4) to an initial condition before an engine startup is disclosed. The apparatus is adapted for determining a viscosity of an engine lubricating oil and executing either one of a resonant initialization, in which the engine valve is oscillated to be moved from a mid-open position to a closed or full open position and held therein by alternately energizing two electromagnets of an electromagnetic actuator, and a one-shot initialization, in which the engine valve is moved from the mid-open position to the closed or full open position and held therein with one stroke by onetime energizing one of the electromagnets, depending on the determined viscosity of an engine lubricating oil. A method for controlling the engine valve to the initial condition is also disclosed. <IMAGE></p> |
