Rail vehicle braking system and method for operating a rail vehicle braking system

A method for operating a rail vehicle brake system that includes at least one disk brake assigned to a wheel or to a wheel set, wherein the at least one disk brake interacts with at least one brake lining, at least one brake application device, which applies a brake application force to the at least one brake lining during a braking process, and a control device for controlling the brake application device, wherein the control device is coupled to a determination unit for determining a current wheel diameter of the wheel or of the wheel set, the method comprising:

• activating the determination unit to determine the current wheel diameter of the wheel of the wheel set;
• determining the current wheel diameter of the wheel of the wheel set;
• transmitting the current wheel diameter of the wheel of the wheel set to the control device;
• and
• actuating the brake application device of the rail vehicle brake system by the control device taking into account the current wheel diameter of the wheel of the wheel set,
• wherein the actuation of the brake application device is controlled to prevent locking of the wheel on a rail track such that a braking force which acts at a wheel contact point of the wheel on the rail track does not exceed a predetermined maximum value,
• wherein each wheel in the rail vehicle brake system has a corresponding determination unit, and each determination unit has at least one sensor device, and the determination unit is automatically activated at predetermined temporal intervals, distance intervals, or number of braking processes and automatically transmits the current wheel diameter to the control device.