Method and device for monitoring and influencing the thermal state of a friction brake system of a rail vehicle

A device for monitoring and influencing the thermal state of a friction braking system of a rail vehicle based on a predictive friction element temperature of at least one friction element of the friction braking system at least partially calculated or estimated by a model, the device comprising:

• detectors configured to detect at least one parameter which characterizes a current operating situation of the rail vehicle;
• a computing unit configured to monitor and influence the thermal state of the friction braking system and in which the model is implemented, wherein:
• the at least one detector enters the at least one parameter into the computing unit, and wherein the model calculates or estimates a first temperature component of the predictive friction element temperature based on the at least one parameter, or
• at least one detector is configured to detect the first temperature component of the predictive friction element temperature and enter it into the model, and wherein the computing unit takes the first temperature component into consideration when monitoring and influencing the thermal state of the friction braking system,
• wherein the model also takes into consideration a second temperature component of the predictive friction element temperature, which the model calculates or estimates in addition to the first temperature component at the at least one friction element on the assumption that, in the current operating situation of the rail vehicle, braking with a defined braking is notionally or theoretically carried out, and
• wherein the model also carries out calculations in such a way that the predictive friction element temperature of the at least one friction element is determined as the sum of the first temperature component and the second temperature component, and
• wherein the computing unit is configured to generate, based on the calculations of the model, a first signal representing a potentially thermally critical state of the at least one friction element only in response to establishment by the model that the predictive friction element temperature is greater than the allowed friction element maximum temperature of the at least one friction element.