These tasks are performed by a number of rotary speed sensors that may be found in various parts of the vehicle.

This correction enables a larger maximum permissible air gap at the speed sensor.

Bearingless speed sensors may be found in almost every wheelset of a rail vehicle.

For these applications there are speed sensors available that do not require a target magnet.

In recent years ultrasonic speed sensors have become available.

Information from the speed sensor is also used in calculating the course of the vehicle.

The direct torque method performs very well even without speed sensors.

The speed sensors, which are located at each wheel, or in some cases in the differential, provide this information.

The controller monitors the speed sensors at all times.

This system is also easy to identify, as there are no individual speed sensors for any of the wheels.