Patent Document ID: 9187103
Application ID: 13394955
Patent Flag: 1

Claim One:
1. A method for estimating the temperature (T B,est ) of a wheel set bearing of a wheel set of a rail vehicle using a calculation model (T bearing estimator), the method comprising: providing the calculation model (T bearing ,estimator) which is designed to estimate the temperature (T B,est ) of the particular wheel set bearing as a function of the speed (v train ) and the ambient temperature (T amb ) of the rail vehicle as input variables of the calculation model (T bearing estimator); measuring, during operation, the temperature of a component of the wheel set as a measured temperature (T meas ), the component being different from the wheel set bearing but is directly or indirectly connected to the wheel set bearing in a thermally conductive manner; estimating the temperature of the component using the calculation model (T bearing estimator) as an estimated temperature (T meas,est ), continuously, temporarily or cyclically calibrating or adjusting the calculation model (T bearing estimator) using a correction element (K b ) to improve the accuracy of the calculation model (T bearing estimator) with respect to the estimation of the temperature (T B,est ) of the wheel set bearing, the correction element (K b ) being based on a comparison of the measured temperature (T meas ) with the estimated temperature (T meas,est ); and outputting the estimated temperature of a wheel set bearing of a wheel set so as to enable precise estimation of the temperature of the wheel set bearing with low signal-processing expenditure.