| 摘要 |
<p>The rear axle of the triple rear axles of the trailer is self-tracking to reduce tyre scrub on cornering. The amount of tracking is controlled by a servo motor (3) which sets the castor angle of sthe rigid axle (2). The angle is reversed when the trailer is reversed. The reverse castor angle is greater so that when the trailer is backed a greater steering effect is obtained, for improved control. The servo operates automatically, either from the improved control. The servo operates automatically, either from the gear selector controls, or in response to wheel directions sensors.</p> |
