Brake control is an extremely safety-relevant sub-system of the train due to the fact that it must allow reliable stopping of the train in all operating conditions.
EP Compact
Optimum braking is achieved if operation of a single lever by the driver results in an individual braking force being applied to each axle or bogie of the train. As the driver himself is not in a position to apply the brakes with a specific force to each axle or bogie, modern brake control systems need to have a large number of integrated intelligent functions: