| 摘要 |
<p>The method involves actuating an operation magnet (10) of an electrical operated switching valve (8) according to type of a pulse width modulation (PWM) in order to bring a valve element from a normal position into a switching position, where the PWM is performed with a base frequency that is greater than maximum switching frequency of the switching valve. Pulse durations are changed depending on the reached end position of the valve element or other operational parameters in order to adjust a preset valve opening. An independent claim is also included for a continuously adjustable hydraulic valve device.</p> |
