Abstract: A braking resistance device for a vehicle has a plurality of braking resistance elements each having a tubular heat-conducting casing. A heat-conducting and electrically insulating material is disposed in the casing. An electrical conductor is embedded in the insulating material over a majority of the longitudinal extent of the casing. Furthermore, the braking resistance device has a stacking arrangement which is designed to be passively cooled. The stacking arrangement has a plurality of layers which are arranged one above the other in a stacking direction and each including the braking resistance elements of the plurality of braking resistance elements which are arranged substantially parallel to one another.

Abstract: A rail vehicle braking device has at least one first electrodynamic brake with a drive unit that includes at least one drive motor and a power supply unit for supplying the drive motor in a traction mode of the drive unit. A brake control unit controls, in a first brake mode, the respective power supply unit for providing a braking effect. In order to optimize the system with a fall-back measure in case of a braking effect loss in respect of the cause thereof, there is provided at least one sensor unit, which detects a braking effect parameter for the first braking mode of the brake. A monitoring device is assigned to the first brake. It is independent of the brake control unit and considers, in a first monitoring mode, the braking effect parameter for the introduction of a fall-back measure concerning the brake.

Abstract: A rail vehicle braking device has at least one first electrodynamic brake with a drive unit that includes at least one drive motor and a power supply unit for supplying the drive motor in a traction mode of the drive unit. A brake control unit controls, in a first brake mode, the respective power supply unit for providing a braking effect. In order to optimize the system with a fall-back measure in case of a braking effect loss in respect of the cause thereof, there is provided at least one sensor unit, which detects a braking effect parameter for the first braking mode of the brake. A monitoring device is assigned to the first brake. It is independent of the brake control unit and considers, in a first monitoring mode, the braking effect parameter for the introduction of a fall-back measure concerning the brake.

Abstract: A method of determining a speed of a vehicle during braking is provided. A pressure p in a braking device is determined in accordance with the ideal gas equation p·V=n·R·T. V is the volume V of the brake cylinder, n is the mole number n of the gas in the brake cylinder, R is the gas constant R and T is the temperature T. The brake force F is determined from the pressure p in the brake cylinder and from the impacted piston area A of the brake cylinder in accordance with p = F A , and the instantaneous speed v of the vehicle is determined from a known initial speed vA and from the acceleration a which is determined from the brake force F and the vehicle mass M in accordance with F=M·a.

Abstract: The invention relates to a method for adapting the brake cylinder pressure (pc,actual; pc1/pc2/pc3/pc4) of a pneumatic brake of a rail vehicle (FZG). According to the invention, during a braking process, the momentary actual slip (sactual) between at least one wheel (2) of the rail vehicle (FZG) and a rail (3) is determined, a desired slip (sdesired) between the at least one wheel (2) and the rail (3) is predetermined, and the brake cylinder pressure (pc,actual; pc1, pc2/pc3, pc4), which corresponds to the difference of the actual slip (sactual) from the predetermined actual slip (sdesired), is modified such that the difference between the desired and actual slip is approximately zero or is at a minimum. The desired slip can be, selectively, in the micro or macro slip range. A braking state factor is determined in the event of a stable braking process, from axle speed measurements and brake cylinder pressures.