| 摘要 |
In wheel speed control apparatus for a vehicle having a plurality of wheels rolling along two spaced parallel rails 11, 12 a frame structure supporting the wheels such that they can move relatively, the apparatus comprising a wheel driver 46 controlling drive of at least one wheel, there are provided at least two detectors 31, 32 for measuring distances between the detectors and a reference surface extending in parallel with the rails 12R, the detectors being disposed to oppose at least one rail and mounted on the frame structure at points spaced apart in a longitudinal direction thereof, circuit means 35 for obtaining a difference in the distances measured by the detectors, and a controller which operates when the difference exceeds a predetermined value, for controlling the wheel driver(s) so as to decrease the difference to a value less than the predetermined value. <IMAGE> |
