| 摘要 |
<p>A method of engaging a drive system with a rotating wheel of an aircraft landing gear. A motor 52 is operated to apply torque to a pinion 64 to rotate it and move it from a neutral position to a contact position in which it contacts a rotating driven gear 66 at an initial contact time. The rotating driven gear is mounted to a rotating wheel of an aircraft landing gear. After the initial contact time the pinion is moved further to a meshing position where the pinion meshes with the driven gear. A centre-to-centre distance between the pinion and the driven gear reduces as the pinion moves to the contact position and to the meshing position. The driven gear contacts the pinion in a series of impacts as the pinion moves from the contact position to the meshing position, each impact induces a spike in electromotive force or angular velocity at the motor. One of the spikes is detected and the motor is operated to vary the torque applied to the pinion in response to the detection of one of the spikes.</p> |
