Electronically Controlled Pneumatic Braking or ECP Braking is a new form of electrical control of air braking being pioneered in the USA. It uses modern electronic techniques to overcome the problems of air braking on long freight trains.

The difference is the word "Electronically" as opposed to "electrically". EPB Brakes use several train wires to control the brakes. Most of these systems use a second train line for main reservoir air supplies. ECPB systems have built-in two-way communications and don’t require wires. A vehicle in an ECP Brake train can perform a self-diagnosis and report the information to the driver and it only requires the standard train line pipe.

Train ECP Brake Air Brake Data

See Train Air Brake Data Blueprint