PARKING BRAKE DEVICE FOR A MOTOR VEHICLE

• Main Authors: GRIESSER, Fabian, SCHNITTGER, Karsten
• Format: Patent
• Language: English; French; German
• Published: 28.04.2021
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

A parking brake device for motor vehicles has at least one first parking brake unit and one second parking brake unit, wherein the first parking brake unit has at least one first compressed air connector, a first inlet-ventilation solenoid valve unit, a first relay valve, a spring brake valve and at least one first compressed air outlet. The first compressed air connector is connected to the first inlet-ventilation solenoid valve unit and the first relay valve. A first control line is provided in the first parking brake unit in such a way that the first relay valve is connected to the first inlet-ventilation solenoid valve unit, wherein the first control line has a first branch upstream of the first relay valve, and wherein a first outlet line is provided in the first parking brake unit, which first outlet line is connected to the at least one first compressed air outlet and has a first outlet branch. A spring brake line is provided in the first parking brake unit, which spring brake line is connected via a first branch to the first control line and via the first outlet branch to the outlet line. The first parking brake unit has a spring brake valve which is arranged in the spring brake line and is connected to the first relay valve, and a first throttle unit which is arranged in the spring brake line between the first outlet branch of the first outlet line and the first branch of the first control line.