Solenoid-valve unit for an electropneumatic controller

1. A solenoid-valve unit for an electropneumatic controller, comprising:

a common valve-housing bottom having compressed-air bores;

solenoid valves including solenoids and displaceable magnet armatures;

at least one pressure sensor for measuring at least one pneumatic pressure, the at least one pressure sensor being disposed in the common valve-housing bottom and in communication with at least one of the compressed-air bores;

first electrical leads for the solenoids;

second electrical leads for the at least one pressure sensor, the solenoids being disposed outside of the common valve-housing bottom and the first and second electrical leads being routed to a common electrical interface;

a control block fastened sealingly on the valve-housing bottom, the control block configured to receive the solenoids and the first and second-electrical leads between the electrical interface, the solenoids and the at least one pressure sensor; and

a lead frame, at least a part of the lead frame including the first and second electrical leads, the control block being injection-molded around the lead frame and the solenoids.

2. The solenoid-valve unit according to claim 1 , wherein the magnet armatures are inserted into the compressed-air bores formed from an upper side of the valve-housing bottom and the solenoids are mounted on top of the valve-housing bottom.

3. The solenoid-valve unit according to claim 2 , further comprising, for each of the solenoid valves, a valve-guide tube for receiving respective ones of the magnet armatures, the valve-guide tube being inserted sealingly into respective ones of the compressed-air bores.

4. The solenoid-valve unit according to claim 1 , wherein the solenoid valves comprise an inlet valve, an outlet valve, and a redundancy valve.

5. The solenoid-valve unit according to claim 1 , wherein terminal pins of the solenoids and the at least one pressure sensor are at least one of welded and soldered to the lead frame.

6. The solenoid-valve unit according to claim 5 , wherein the control block is a plastic control block.

7. The solenoid-valve unit according to claim 5 , wherein the electrical interface is a plug connector for receiving a mating connector, the electrical interface being provided on an external side of the control block.

8. The solenoid-valve unit according to claim 7 , wherein the mating connector is a vehicle cable harness plug connector.

9. The solenoid-valve unit according to claim 5 , wherein the electrical interface includes at least one of projecting plug contacts and soldering pins, the at least one of plug contacts and soldering pins being configured to receive a circuit support, the electrical interface being provided on an external side of the control block.

10. The solenoid-valve unit according to claim 9 , wherein the circuit support is a printed-circuit board.

11. The solenoid-valve unit according to claim 5 , wherein the at least one pressure sensor and the solenoid valves are disposed substantially next to one another in a row.

12. The solenoid-valve unit according to claim 1 , wherein the at least one pressure sensor includes terminals disposed in a line on the electrical interface, and the at least one pressure sensor is received with at least one of a tolerance and swiveling freedom in a direction that runs perpendicular to a line of connection and perpendicular to a direction of insertion of the at least one pressure sensor into the valve-housing bottom.

13. The solenoid-valve unit according to claim 1 , wherein the at least one pressure sensor is connected by at least one of the compressed-air bores of the valve-housing bottom to an output region of a downstream relay valve.

14. A solenoid-valve unit for an electropneumatic controller, comprising:

a valve-housing bottom having compressed-air bores;

solenoid valves including solenoids and displaceable magnet armatures;

at least one pressure sensor for measuring at least one pneumatic pressure disposed in the common valve-housing;

first electrical leads for the solenoids; and

second electrical leads for the at least one pressure sensor, the solenoids being disposed outside of the common valve-housing bottom and the first and second electrical leads being routed to a common electrical interface, wherein the electrical interface is a circuit support, and wherein the solenoid valves are connected to a common yoke lamination and the first and second electrical leads are connected to the circuit support.

15. The solenoid-valve unit according to claim 14 , wherein the circuit support is at least one of a printed-circuit board, a flexible conductor film and a flat ribbon cable.

16. The solenoid-valve unit according to claim 14 , further comprising an electronic control unit on the circuit support for activating the solenoids and for reading the at least one pressure sensor.

17. The solenoid-valve unit according to claim 14 , wherein the yoke lamination and the electrical interface are fastened to a common support fastened onto the valve-housing bottom.

18. The solenoid-valve unit according to claim 17 , wherein the common support is formed from plastic.

19. The solenoid-valve unit according to claim 14 , wherein the yoke lamination is in electrical contact with the valve-housing bottom.

20. The solenoid-valve unit according to claim 19 , wherein the yoke lamination is fastened to the valve-housing bottom by fastening bolts.

21. The solenoid-valve unit according to claim 14 , wherein the at least one pressure sensor includes terminals fastened to the circuit support.

22. The solenoid-valve unit according to claim 21 , wherein the terminals include at least one of terminal legs and terminal pins formed as at least one of plug contacts and soldering pins.

23. The solenoid-valve unit according to claim 21 , wherein the at least one pressure sensor includes at least one retaining pin fastened mechanically to the circuit support.

24. The solenoid-valve unit according to claim 14 , wherein the circuit support and the yoke lamination are disposed next to one another.

25. The solenoid-valve unit according to claim 24 , wherein the circuit support and the yoke lamination are disposed parallel to one another.

26. The solenoid-valve unit according to claim 14 , wherein the solenoid valves are disposed in a row and the at least one pressure sensor is offset relative to the row.

27. The solenoid-valve unit according to claim 14 , wherein the at least one pressure sensor is disposed offset relative to a center of the row.

28. The solenoid-valve unit according to claim 14 , wherein the solenoids include valve-cartridge inserts.

29. The solenoid-valve unit according to claim 28 , wherein the valve-cartridge inserts include at least one of 2/2-way and 3/2-way valve inserts.

30. The solenoid-valve unit according to claim 14 , wherein the at least one pressure sensor is connected to the electrical interface by a filter device.

31. The solenoid-valve unit according to claim 28 , wherein the filter device is a low pass filter.

32. The solenoid-valve unit according to claim 31 , wherein the filter device includes a plurality of RC elements.

33. The solenoid-valve unit according to claim 14 , wherein the electrical interface includes an EMC ground terminal on the yoke lamination.

34. A pressure modulator, comprising:

a solenoid-valve unit, the solenoid-valve unit including:

a valve-housing bottom having compressed-air bores;

solenoid valves including solenoids and displaceable magnet armatures;

at least one differential pressure sensor connected by at least one of the compressed-air bores of the valve-housing bottom to an output region of a downstream relay valve;

first electrical leads for the solenoids;

second electrical leads for the at least one differential pressure sensor, the solenoids being disposed outside of the valve-housing bottom;

a plastic control block fastened sealingly on the valve-housing bottom, the plastic control block configured to receive the solenoids and the first and second-electrical leads between the electrical interface, the solenoids and the at least one pressure sensor; and

a lead frame, at least a part of the lead frame including the first and second electrical leads, the control block being injection-molded around the lead frame and the solenoids, the first and second electrical leads being routed to a common electrical interface, and the at least one differential pressure sensor in communication with atmospheric pressure via a vent duct of at least one of the relay valve and the solenoid valves.

35. The pressure modulator according to claim 34 , further comprising a control unit for activating the solenoids and for reading the at least one differential pressure sensor.

36. The pressure modulator according to claim 35 , wherein the control unit is activated by a central control module of a vehicle.

37. The pressure modulator according to claim 36 , wherein the control unit is activated by the control module via a vehicle cable system.

38. A brake-pressure modulator of an electropneumatic vehicle braking system, the modulator comprising:

a solenoid-valve unit, the solenoid-valve unit including:

a valve-housing bottom having compressed-air bores;

solenoid valves including solenoids and displaceable magnet armatures;

at least one differential pressure sensor connected by at least one of the compressed-air bores of the valve-housing bottom to an output region of a downstream relay valve;

first electrical leads for the solenoids;

second electrical leads for the at least one differential pressure sensor, the solenoids being disposed outside of the valve-housing bottom;

a plastic control block fastened sealingly on the valve-housing bottom, the plastic control block configured to receive the solenoids and the first and second-electrical leads between the electrical interface, the solenoids and the at least one pressure sensor; and

a lead frame, at least a part of the lead frame including the first and second electrical leads, the control block being injection-molded around the lead frame and the solenoids, the first and second electrical leads being routed to a common electrical interface, and the at least one differential pressure sensor in communication with atmospheric pressure via a vent duct of at least one of the relay valve and the solenoid valves.

39. The brake-pressure modulator according to claim 38 , further comprising a control unit for activating the solenoids and for reading the at least one differential pressure sensor.

40. The brake-pressure modulator according to claim 39 , wherein the control unit is activated by a central control module of a vehicle.

41. The brake-pressure modulator according to claim 40 , wherein the control unit is activated by the control module via a vehicle cable system.