| 摘要 |
<p>The invention relates to a control arrangement and a method especially for controlling the direction of a water jet propulsion drive to be used in boats. A preferably electrically operated spindle motor (3) extends to a lever arm (1) controlling the direction. The function of said motor (3) depends upon the mutual centered disposition between said lever arm (1) and a control piece (5) connected to a command means (7). Said spindle motor remains non-operative when said control piece (5) remains, within a suitable clearance, in a predetermined disposition in relation to said lever arm (1), but when a predetermined deviation occurs said motor (3) strives to restore said lever arm (1) into said predetermined mutual disposition, that is into a new centered disposition corresponding to the new position of said control piece (5). According to the method the position of said lever arm (1) with respect to said control piece (5) is detected, said control piece (5) being at least partly movable in relation to said lever arm (1) and moving in accordance with the movements of said command means (7). A detected deviation of said control piece (5) from said predetermined centered disposition in relation to said lever arm (1) is tranformed into a control signal for said spindle motor (3) to restore said mutual centered disposition.</p> |
