METHOD FOR REGISTRATION OF RAIL VEHICLE WHEEL PASSAGE AND METHOD FOR DETERMINING RAIL VEHICLE WHEEL DIAMETER Russian patent published in 2017 - IPC B61L1/16 

FIELD: transportation.

SUBSTANCE: method comprises application of a wheel sensor and determining the speed of the wheel passage. The sensor contains a detection zone, and for the zone response function with respect to the wheel passage and/or its derivative there are two extrema, the difference in the appearance moments of which at a certain fixed speed depends only on the passing wheel diameter. In the sensor memory a set of master values of the differences in the appearance moments of extrema is recorded which is calculated from the static characteristics of the interaction of the master wheels of different diameters with the sensor detection zones. When the wheel passes, the response values in the form of response function are recorded to the sensor memory, taking into account the wheel passage speed the difference in the extrema appearance moments of the response function and/or its derivative is calculated, when the calculated value of the difference in the moments coincides with one of the values of the differences from the set stored in the sensor memory, the fact of the passage of the wheel is registered. The diameter of the passing wheel is determined according to the table of compliant master values of the differences in the extrema appearance moments recorded in the memory of the passage sensor.

EFFECT: increased reliability of registration of the wheel passage and accuracy of determining the diameter.

2 cl