What's the modern kind of freight car brake?

For freight cars, looks to me like you guys got 'em all, except the ABEL and ABDWEL. The 'EL' stands for 'E'mpty or 'L'oaded, As its name suggests, compensation in operation occurs automatically predicated on whether the car is loaded or empty. (If a car with EL brakes makes empty while en route, there is a procedure to follow to reset the mechanisms involved for proper brake function).