| 摘要 |
This invention relates to a guided vehicle such as a railway vehicle and is a development or improvement of the invention disclosed in patent specification No. 2 526 387. The vehicle has steerable axles, each of which is steered by a coupling bar connected to the axle mount at a contact point and pivoted on the body of the vehicle at a pivot point. The axle mount is mounted on the body for rotation about an axis of rotation. The distances between the pivot point, the axis of rotation and the contact point, and the length of the coupling bar d are chosen to position the axle radially of a curve, as in the earlier patent specification. The pivot point of the coupling bar on the body is arranged to be substantially on the roll axis of the vehicle. Each drive axle has independently rotatable wheels and a limited slip differential limits the relative slip to 5%. The non-driven axles may also have independently rotating wheels, and anti-skid, anti-wheel-spin electronic control of the wheel brakes. The invention is especially applicable to railway vehicles for use on tracks with small radius curves such as urban railways.
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