Electropneumatic brake control module for utility vehicles with redundancy pressure connector

1. An electropneumatic brake control module ( 1 ) for commercial vehicles ( 100 ), comprising:

a supply port ( 2 ) for connecting a compressed air supply ( 3 );

a first axle channel port ( 4 );

a pneumatically controlled inlet/outlet valve unit ( 10 ) for outputting a first braking pressure (PB 1 ) at the first axle channel port ( 4 );

an electropneumatic pilot control unit ( 8 ) for outputting at least a first control pressure (P 1 ) at the inlet/outlet valve unit ( 10 );

a redundancy pressure port ( 6 ) for receiving a redundancy pressure (PR); and

a redundancy valve unit ( 12 ) connected to the redundancy pressure port ( 6 ) for outputting a redundancy braking pressure (PBR) at the first axle channel port ( 4 ) in the event that the electropneumatic pilot control unit ( 8 ) has a fault;

wherein the inlet/outlet valve unit ( 10 ) has a first pneumatically switchable 2/2-way inlet valve ( 14 ) and a first pneumatically switchable 2/2-way outlet valve ( 16 ), wherein the first pneumatically switchable 2/2-way inlet valve ( 14 ) receives the first control pressure (P 1 ) and the first pneumatically switchable 2/2-way outlet valve ( 16 ) receives a second control pressure (P 2 ) from the pilot control unit ( 8 ).

2. The electropneumatic brake control module ( 1 ) as claimed in claim 1 , wherein the first braking pressure (PB 1 ) from the inlet/outlet valve unit ( 10 ) is directly fed from the supply port ( 2 ) to the first axle channel port ( 4 ) without boosting.

3. The electropneumatic brake control module ( 1 ) as claimed in claim 1 , wherein the redundancy valve unit ( 12 ) is connected to the inlet/outlet valve unit ( 10 ) for enabling an output of the redundant braking pressure (PBR) via a first outlet line ( 17 ) for venting the first axle channel port ( 4 ) at the first axle channel port ( 4 ) in the event of a pilot control unit ( 8 ) fault.

4. The electropneumatic brake control module ( 1 ) as claimed in claim 3 , wherein the redundancy valve unit ( 12 ) has a shuttle valve ( 20 ) and the redundancy braking pressure (PBR) can be introduced into the first outlet line ( 17 ) via the shuttle valve ( 20 ).

5. The electropneumatic brake control module ( 1 ) as claimed in claim 4 , wherein the shuttle valve ( 20 ) has a first shuttle valve port ( 20 . 1 ) connected or connectable to the redundancy pressure port ( 6 ), a second shuttle valve port ( 20 . 2 ) connected to a vent ( 5 ) and a third shuttle valve port ( 20 . 3 ) connected or connectable to the first outlet line ( 17 ) and selectively connects the third shuttle valve port ( 20 . 3 ) to either the first shuttle valve port ( 20 . 1 ) or the second shuttle valve port ( 20 . 2 ).

6. The electropneumatic brake control module ( 1 ) as claimed in claim 5 , wherein the first shuttle valve port ( 20 . 1 ) is connected to a second redundancy valve port ( 18 . 2 ).

7. The electropneumatic brake control module ( 1 ) as claimed in claim 5 , wherein the first shuttle valve port ( 20 . 1 ) is connected to a relay valve working port ( 22 . 3 ).

8. The electropneumatic brake control module ( 1 ) as claimed in claim 3 , wherein the redundancy valve unit ( 12 ) has a relay valve ( 22 ) for volume boosting of the redundancy pressure (PR).

9. The electropneumatic brake control module ( 1 ) as claimed in claim 8 , wherein the relay valve ( 22 ) has a relay valve supply port ( 22 . 1 ) connected to the supply port ( 2 ), a relay valve venting port ( 22 . 2 ) connected to a vent ( 5 ), a relay valve working port ( 22 . 3 ) for outputting the redundant braking pressure (PBR) into the first outlet line ( 17 ), and a relay valve control port ( 22 . 4 ) connected or connectable to the redundancy pressure port ( 6 ).

10. The electropneumatic brake control module ( 1 ) as claimed in claim 9 , wherein the relay valve working port ( 22 . 3 ) is connected to a first outlet valve port ( 16 . 1 ).

11. The electropneumatic brake control module ( 1 ) as claimed in claim 9 , wherein the relay valve control port ( 22 . 4 ) is connected to a second redundancy valve port ( 18 . 2 ).

12. The electropneumatic brake control module ( 1 ) as claimed in claim 1 , wherein:

the first pneumatically switchable 2/2-way inlet valve ( 14 ) has a first inlet valve port ( 14 . 1 ) connected to the supply port ( 2 ), a second inlet valve port ( 14 . 2 ) connected to the first axle channel port ( 4 ) and a first inlet valve control port ( 14 . 3 ) for receiving the first control pressure (P 1 ); and

the first pneumatically switchable 2/2-way outlet valve ( 16 ) has a first outlet valve port ( 16 . 1 ) connected or connectable to a vent ( 3 ), a second outlet valve port ( 16 . 2 ) connected to the first axle channel port ( 4 ) and a first outlet valve control port ( 16 . 3 ) for receiving the second control pressure (P 2 ).

13. An electropneumatic brake control module ( 1 ) for commercial vehicles ( 100 ), comprising:

a supply port ( 2 ) for connecting a compressed air supply ( 3 );

a first axle channel port ( 4 );

a pneumatically controlled inlet/outlet valve unit ( 10 ) for outputting a first braking pressure (PB 1 ) at the first axle channel port ( 4 );

an electropneumatic pilot control unit ( 8 ) for outputting at least a first control pressure (P 1 ) at the inlet/outlet valve unit ( 10 );

a redundancy pressure port ( 6 ) for receiving a redundancy pressure (PR); and

a redundancy valve unit ( 12 ) connected to the redundancy pressure port ( 6 ) for outputting a redundancy braking pressure (PBR) at the first axle channel port ( 4 ) in the event that the electropneumatic pilot control unit ( 8 ) has a fault;

wherein the redundancy valve unit ( 12 ) has a redundancy valve ( 18 ), with a first redundancy valve port ( 18 . 1 ) connected to the redundancy pressure port ( 6 ), a second redundancy valve port ( 18 . 2 ) connected to the first axle channel port ( 4 ) and a third redundancy valve port ( 18 . 3 ) connected to a vent ( 5 ).

14. An electropneumatic brake control module ( 1 ) for commercial vehicles ( 100 ), comprising:

a supply port ( 2 ) for connecting a compressed air supply ( 3 );

a first axle channel port ( 4 );

a pneumatically controlled inlet/outlet valve unit ( 10 ) for outputting a first braking pressure (PB 1 ) at the first axle channel port ( 4 );

an electropneumatic pilot control unit ( 8 ) for outputting at least a first control pressure (P 1 ) at the inlet/outlet valve unit ( 10 );

a redundancy pressure port ( 6 ) for receiving a redundancy pressure (PR);

a redundancy valve unit ( 12 ) connected to the redundancy pressure port ( 6 ) for outputting a redundancy braking pressure (PBR) at the first axle channel port ( 4 ) in the event that the electropneumatic pilot control unit ( 8 ) has a fault; and

a second axle channel port ( 24 );

wherein the inlet/outlet valve unit ( 10 ) is configured to output a second braking pressure (PB 2 ) at the second axle channel port ( 24 );

wherein the electropneumatic pilot control unit ( 8 ) is configured for at least a third control pressure (P 3 ) at the inlet/outlet valve unit ( 10 ),

and wherein the redundancy valve unit ( 12 ) is configured to output the redundant braking pressure (PBR) at the second axle channel port ( 24 ) in the event that the electropneumatic pilot control unit ( 8 ) has a fault.

15. The electropneumatic brake control module ( 1 ) as claimed in claim 14 , wherein the redundancy valve unit ( 12 ) is connected to the inlet/outlet valve unit ( 10 ) for enabling an output of the redundant braking pressure (PBR) to the second axle channel port ( 24 ) via a second outlet line ( 29 ) for venting the second axle channel port ( 24 ) in the event of a control unit ( 8 ) fault.

16. The electropneumatic brake control module ( 1 ) claim 14 , wherein the inlet/outlet valve unit ( 10 ) has a second pneumatically switchable 2/2-way inlet valve ( 26 ) and a second pneumatically switchable 2/2-way outlet valve ( 28 ) for the second axle channel port ( 24 ), wherein the second pneumatically switchable 2/2-way inlet valve ( 26 ) receives the third control pressure (P 3 ) and the second pneumatically switchable 2/2-way outlet valve ( 28 ) receives a fourth control pressure (P 4 ) from the pilot control unit ( 8 ).

17. The electropneumatic brake control module ( 1 ) as claimed in claim 14 , wherein:

the second pneumatically switchable 2/2-way inlet valve ( 26 ) has a third inlet valve port ( 26 . 1 ) connected to the supply port ( 2 ), a fourth inlet valve port ( 26 . 2 ) connected to the second axle channel port ( 24 ) and a second inlet valve control port ( 26 . 3 ) for receiving the third control pressure (P 3 ); and

the second pneumatically switchable 2/2-way outlet valve ( 28 ) has a third outlet valve port ( 28 . 1 ) connected or connectable to a vent ( 3 ), a fourth outlet valve port ( 28 . 2 ) connected to the first axle channel port ( 24 ) and a second outlet valve control port ( 28 . 3 ) for receiving the fourth control pressure (P 4 ).

18. The electropneumatic brake control module ( 1 ) as claimed in claim 17 , further comprising a relay valve working port ( 22 . 3 ) connected to a third outlet valve port ( 28 . 1 ).

19. The electropneumatic brake control module ( 1 ) as claimed in claim 14 , further comprising a second redundancy valve port ( 18 . 2 ) configured to be connected to the second axle channel port ( 24 ).

20. The electropneumatic brake control module ( 1 ) as claimed in claim 14 , further comprising a shuttle valve ( 20 ) configured to introduce the redundant braking pressure (PBR) into the second outlet line ( 19 ).

21. The electropneumatic brake control module ( 1 ) as claimed in claim 14 , further comprising a relay valve working port ( 22 . 3 ) configured for outputting the redundant braking pressure (PBR) into the second outlet line ( 19 ).