Method and device for detecting derailment for rail vehicles, and rail vehicle

Abstract

The invention relates to a method for detecting derailment, wherein a first sensor (1) is used to detect first flexural deformations of a first retaining element (3) and a second sensor (2) is used to detect second flexural deformations of a second retaining element (4), wherein the first retaining element (3) and the second retaining element (4) are connected to an obstacle contact beam (6), and wherein the first sensor (1) and the second sensor (2) are connected to an evaluation unit (11) in a signal-transmitting capacity. To safely detect derailment, it is proposed that, on the one hand, first absolute impulse values and second absolute impulse values, which are determined from the first flexural deformations and the second flexural deformations by means of the evaluation unit (11), or, on the other hand, sums of the first absolute impulse values and the second absolute impulse values are compared with an impulse threshold value, wherein a check is performed to determine whether the first absolute impulse values and / or the second absolute impulse values, on the one hand, or the sums, on the other hand, are equal to the impulse threshold value or greater than the impulse threshold value.