SYSTEM FOR DETERMINING THE VALUE OF FRICTION BETWEEN THE RAIL AND THE WHEEL OF A RAILWAY VEHICLE, AND CORRESPONDING METHOD FOR SUCH DETERMINATION Russian patent published in 2022 - IPC B60T8/17 B60T8/172 G01M17/10 

FIELD: measuring.

SUBSTANCE: invention relates to a system for monitoring the contact forces between the rail and the wheel of a railway vehicle. The system for determining the value of friction between the rail and the wheel of a railway vehicle including at least one axle coupled with two wheels with a radius (R), comprises a deformation detection scheme (10), coupled with the axle (1), configured to detect the torsional deformation of the axle, caused by the longitudinal friction force (F_long) transmitted from the axle to the rail; a control tool configured to estimate the value of torque depending on the identified torsional deformation and convert the calculated value of torque to the value of longitudinal friction force (F_long) depending on the radius (R) of wheels, and calculate the value of friction between the wheel and the rail using the ratio between said value of longitudinal friction force (F_long) and the value of normal load exerted by the axle on the rail. Also described is a method for determining the value of friction between the rail and the wheel of a railway vehicle.

EFFECT: possibility of estimating the longitudinal forces transmitted from the axle to the rail based on the torsional deformation of the axle occurs as a result.

7 cl, 4 dwg