Method for detecting damage in railway traffic

Details Method for detecting damage in railway traffic Method for detecting damage in railway traffic

B - Operations, Transporting

61

K

B61K 9/12 (2006.01)

Patent

CA 2350523

The invention relates to a method for detecting operating safety-threatening damage in the railway traffic of rail vehicles which are assembled in the form of trains, especially high speed trains, with multi-axle driving gears mounted together in bogies. Damage that appears in the driving gears during travel and existing damaged areas in the track being travelled on are detected immediately by means of a bogie noise pattern which is formed from the output signals of sound pick-up devices allocated to each bogie. Each bogie noise pattern is analysed for temporal changes. The temporal changes in at least one series of bogie noise patterns belonging to consecutive bogies are compared with each other and evaluated.

Procédé d'identification de dommages mettant en danger la sécurité d'exploitation, dans le cadre du trafic ferroviaire, de véhicules sur rail constitués en trains, en particulier en trains à grande vitesse, et dotés de trains de roulement à plusieurs essieux constituant des bogies. Selon la présente invention, en vue d'identifier immédiatement des dommages subis par les trains de roulement pendant que le train se déplace et des dommages présents sur le tronçon ferroviaire parcouru, un modèle de bruit de bogie est constitué à partir des signaux de sortie de capteurs acoustiques attribués à chaque bogie et chaque modèle de bruit de bogie est surveillé sur la base d'une analyse des modèles, à la recherche de modifications temporelles. Les modifications temporelles dans au moins un certain nombre de modèles de bruit de bogie qui appartiennent à des bogies successifs sont comparées entre elles et évaluées.

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