| 摘要 |
The device has Hall effect sensors to acquire rotation speed of each wheel of two pairs of mechanically independent front and rear wheels of a train. Speed limit determination units (72) find a speed limit for the train based on radius of curvature of a railway track. A train speed limitation unit (80) determines a control signal so that the speed limit does not exceed a determined speed limit. The radius of curvature is determined by a determination module (60) at a level of or each pair of wheels based on the rotation speed of each wheel. Independent claims are also included for the following: (A) a system to control speed of a rail transit car (B) a method to control speed of a rail transit car. |
