Parking Brake Device for a Motor Vehicle

Abstract

A parking brake device for motor vehicles includes at least one compressed-air connection, an inlet venting-solenoid valve unit, a relay valve and at least one first compressed-air outlet. The compressed air connection is connected to the inlet venting-solenoid valve unit and the relay valve. A control line is mounted such that the relay valve is or can be connected to the inlet venting-solenoid valve unit, the control line having a first branch and a second branch upstream of the relay valve. An outlet line is provided that is connected to the at least one first compressed-air outlet and has an outlet branch. The parking brake device further has a spring brake line that is connected to the control line via the first branch and to the outlet line via the outlet branch, and a trailer valve line that is connected to the control line via the second branch. The parking brake device also has a spring brake valve that is arranged in the spring brake line and is connected to the relay valve, and a throttle unit that is arranged in the spring brake line between the outlet branch of the outlet line and the first branch of the control line.

Dependencies are inferred from the claim text.