Patent ID: 6910744

Claim:
A control device for compressed air brakes comprising: a control valve having a housing, a control valve piston rod, a first piston, a second piston and a double seat valve; a supply air reservoir having a compressed air connection to the double seat valve; a main air pipe having a compressed air connection to the double seat valve connected in parallel to the compressed air connection of the supply reservoir to the double seat valve; a control chamber connected between the control valve and a control element; a first valve having a valve piston rod and a piston, and connected with the control valve via a compressed air connection, and the piston having, on one side, a pressure spring and, on the other side, having a compressed air connection device for a control pressure; the first piston having one side connected with the main air pipe in a compressed-air carrying manner and the other side connected with the control chamber in a compressed air carrying manner; the second piston having one side with a compressed air connection to one of a brake cylinder and a brake cylinder pilot chamber; the double seat valve being connected between the compressed air connection at the supply reservoir and the compressed air connection to the brake cylinder pilot chamber; and the control element connected to the main air pipe, the control chamber, the compressed air connection device for the control pressure, the environment and one of the brake cylinder and the brake cylinder pilot chamber.