EP 3049303 A1 20160803 - DEVICE AND METHOD FOR IMPROVING A COEFFICIENT OF FRICTION BETWEEN A WHEEL AND A RAIL FOR A RAIL VEHICLE
Title (en)
DEVICE AND METHOD FOR IMPROVING A COEFFICIENT OF FRICTION BETWEEN A WHEEL AND A RAIL FOR A RAIL VEHICLE
Title (de)
VORRICHTUNG UND VERFAHREN ZUM VERBESSERN EINES HAFTWERTS ZWISCHEN EINEM RAD UND EINER SCHIENE FÜR EIN SCHIENENFAHRZEUG
Title (fr)
DISPOSITIF ET PROCÉDÉ D'AMÉLIORATION D'UN COEFFICIENT D'ADHÉRENCE ENTRE UNE ROUE ET UN RAIL DE VÉHICULE FERROVIAIRE
Publication
Application
Priority
- DE 102013016135 A 20130927
- EP 2014070442 W 20140925
Abstract (en)
[origin: WO2015044246A1] The present invention relates to a method (700) for improving a coefficient of friction (340) between a wheel (104) and a rail (106) for a rail vehicle (100). In this context, the rail vehicle (100) has an anti-slip device (114) and a sanding device (102), wherein the anti-slip device (114) is designed to determine the coefficient of friction (340) between the wheel (104) and the rail (106), wherein at least one sanding parameter (234) of the sanding device (102) can be set, wherein sand (110) can be discharged by the sanding device (102) in accordance with the sanding parameter (234). The method (700) comprises a changing step (710) in which the sanding parameter (234) is changed in order to discharge sand (110) in accordance with the sanding parameter (234), wherein the changing step takes place within a predefined optimisation range (654) about a setpoint value (346) of the sanding parameter (234), a determining step (720) in which at least two coefficients of friction (340) are determined during the sanding parameter (234) which was changed in the changing step (710), in order to determine a coefficient of friction (340) for, in each case, one of at least two different values of the sanding parameter (234), a detection step (730) in which an optimum coefficient of friction from the at least two coefficients of friction (340) is detected in order to determine an optimum sanding parameter (344), and a setting step (740) in which the setpoint value (346) for the sanding parameter (234) is set to the optimum sanding parameter (344) in order to bring about an improvement in the coefficient of friction (340).
IPC 8 full level
B61C 15/10 (2006.01)
CPC (source: EP)
B61C 15/102 (2013.01); B61C 15/107 (2013.01)
Citation (search report)
See references of WO 2015044246A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2015044246 A1 20150402; DE 102013016135 A1 20150402; DE 102013016135 B4 20190718; EP 3049303 A1 20160803; EP 3049303 B1 20171115
DOCDB simple family (application)
EP 2014070442 W 20140925; DE 102013016135 A 20130927; EP 14772356 A 20140925