Device for detecting position or speed of rotating shaft of vehicle, and for use in driver authorization system, has rotating shaft sensor, where encoder wheel is arranged on rotary shaft, and encoder wheel has pre-determined speed of teeth

摘要

The device (1) has a rotating shaft sensor (2), where an encoder wheel (G) is arranged on the rotary shaft. The encoder wheel has a pre-determined speed of teeth (3), where the teeth are arranged in distributed manner by a coding (C) at the periphery of the encoder wheel. The teeth of the encoder wheel are arranged such that the distances between the teeth are unequally large. An independent claim is included for a method for detecting a position or speed of a rotating shaft of a vehicle.