Patent ID: 8774990

Claim:
A method for demanding safety reactions for a rail vehicle, the method comprising the following steps: providing a plurality of appliances each configured to demand a safety reaction selected from a group consisting of a braking process, a traction inhibit and both a braking process and a traction inhibit for the rail vehicle when required; providing a safety loop common to the plurality of appliances, the appliances each having a different function taken from the group of functions consisting of: emergency braking demanding by a passenger, bogie truck or wagon monitoring, dead-man function, braking controlling, door controlling, and speed monitoring; providing a controller; providing a data bus for interconnecting the plurality of appliances and the controller; identifying, by one appliance of the plurality of appliances, a state in which one of the safety reactions should be carried out; demanding, by the one appliance, the safety reaction from the controller over the data bus; and if the safety reaction has been carried out, feeding back information to the demanding one appliance that the safety reaction has been carried out, and if the safety reaction has not been carried out, intervening in the safety loop to initiate a desired safety reaction.