The invention relates to a method for determining the speed of a rail vehicle (10) equipped with at least one first chassis unit (14), according to which method a chassis speed measurement variable (Vdreh) is provided by means of a sensor unit (18). For this purpose: inertial measurement variables (omegabib, fb) are detected by an inertial measurement unit (22); a reference speed characteristic value (Vref) is formed on the basis of the chassis speed measurement variable; an inertial speed characteristic value (VDG) is determined by means of an inertial calculation carried out by a calculation unit (24, 24', 24'') on the basis of the inertial measurement variables during at least one time span according to a first operating mode in order to estimate a deviation (bgyro, bacc, deltav) in the inertial calculation on the basis of the reference speed characteristic value; the inertial speed characteristic value is determined as above - during at least one time span according to a second operating mode without taking into account the reference speed characteristic value; an anomalous provision process of the chassis speed measurement variable is detected by means of a recognition unit (30) on the basis of a reference characteristic value and the chassis speed measurement value; and in this case the inertial calculation is performed according to the second operating mode.
Method for determining at least one speed in a rail vehicle
2016-01-20
Patent
Elektronische Ressource
Englisch
Method for determining at least one speed in a rail vehicle
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