Patent ID: 9476802
Filing Date: 2016-10-25
CPC Classification: B61K,G01L,G01M

Claim Text:
1. A load measurement method for measuring loads applied to rails from a pair of wheels of a railcar which includes the wheels, an axle supporting the wheels, a pair of bearings supporting the axle to be rotatable, and an axle box housing the bearings, the method comprising: detecting, by a horizontal displacement detection sensor, a displacement of the axle in the longitudinal direction at the axle box or a displacement of the axle box in the longitudinal direction with respect to a truck frame; transforming, by a processor, each of values detected by the horizontal displacement detection sensor into respective axial loads; measuring an axial force applied to the axle in a longitudinal direction; and obtaining, by the processor, lateral forces applied to rails from the respective wheels by using the respective axial loads and the measured axial force.