Abstract: A device and method control dispensing of adhesion-increasing agent of a rail vehicle. At least one wheel speed sensor and/or wheel acceleration sensor and/or wheel torque sensor measures the wheel speed or wheel rotational speed and/or the wheel acceleration of a particular wheel and/or the wheel torque acting on the wheel. A measuring unit determines the vehicle speed and/or the acceleration in the vehicle longitudinal direction of the entire rail vehicle. A calculation unit ascertains the ratio of the wheel speed or wheel rotational speed of the wheel and the speed of the rail vehicle and/or the ratio of the wheel acceleration and the acceleration in the longitudinal direction of the rail vehicle and/or the ratio between the target torque and the actual torque acting on the wheel; a change in ratio is used to control dispensing of the adhesion-increasing agent.

Abstract: A method for determining a braking distance of a vehicle, wherein a coefficient of friction (COF)actual between a brake lining and a brake disc is calculated as a function of a tensioning force Fd, a vehicle velocity V and a temperature of the frictional layer Tdisc, wherein the temperature of the frictional layer Tdisc is updated dynamically on the basis of the coefficient of friction COFactual in order to calculate a braking distance which approaches reality.