Valve control unit, particularly pilot control unit for a pressure modulator of a commercial vehicle
A technology for pressure regulators, commercial vehicles, applied in the direction of brakes, valve details, valve operation/release devices, etc. Effects of mechanical damage or leakage
Active Publication Date: 2009-08-12
ZF CV SYST EURO BV
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Problems solved by technology
[0005] However, such valve control units or pilot control units are usually complex in design and require a large installation space
In particular the manufacture of the main housing and other components as well as the pneumatic air guidance via the various air channels, seals and possibly hoses between the different components is costly
At the same time, the placement of solenoid coils and pressure sensors as well as the connection to the electronics via separate interfaces are also costly
Method used
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Embodiment Construction
[0024] The pilot control unit 1 has a pilot control housing 2 , preferably made of plastic, in which the solenoid valves 4 , 5 , 6 are accommodated. Here, a bore 3 extends in the transverse direction through the pilot control housing 2 , into which bore the valve cartridge 4 a , 5 a , 6 a is inserted. The free space forming the casting ladle 9 is arranged inside the pilot control housing 2 for the solenoid coil 16 into which the valve cartridge 4 , 5 , 6 is inserted. A circuit carrier 7 , for example a circuit board 7 with electrical connections 8 , such as connectors 8 , is arranged on the upper side 2 a of the pilot control housing 2 . The electromagnetic coil 16 is directly fixed on the circuit board 7 with the contacts M1+, M1-, M2+, M2-, M3+, M3-. according to figure 1 , figure 2 , the flat ribbon cable can be connected to the electrical interface 8 .
[0025] Furthermore, the pressure sensor 10 is arranged on the upper side 2 a , for example as a microstructured chi...
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The invention relates to a valve control unit, particularly for a pressure modulator of a commercial vehicle. Said valve control unit (1) comprises a valve control housing (2), solenoid valves (4, 5, 6) which are provided with solenoids (16) and internal valve pieces (4a, 5a, 6a) inserted into the solenoids (16), and a pneumatic interface (14). The solenoids (16) are accommodated inside the valvecontrol housing (2). Pressure sensors (10) for measuring pneumatic pressures are accommodated in or on the valve control unit, preferably on the top surface. Valve bores (3), into which the internal valve pieces (4a, 5a, 6a) are inserted, extend within the valve control housing (2). Air ducts (12) extend between the pneumatic interface (14), the valve bores (3), and the pressure sensors (10), inside the valve control housing (2). The solenoids (16) and pressure sensors (10) are contacted with an electrical interface (8). Advantageously, the valve control housing (2) is embodied as a single piece.
Description
technical field [0001] The invention relates to a valve control unit, in particular a pilot control unit for a pressure regulator of a commercial vehicle. Background technique [0002] With its solenoid valves, this pilot control unit regulates a relay valve for increasing the air volume, which in turn regulates one or more channels. In the case of electropneumatic braking systems such as electronically adjusted braking systems (EBS) for trailers, the wheel brake modules with brake cylinders for wheel braking are controlled via relay valves. [0003] DE 100 09 116 A1 shows a corresponding pilot control unit for a brake pressure regulator in a trailer with an electronic brake system. Here, the solenoid valve is embodied as a cartridge solenoid valve, the valve cartridge of which is inserted into a housing with the solenoid coil. In this case, the solenoid coil is first inserted into the housing, and then the valve cartridge is pushed into the housing in the assembly directi...
Claims
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IPC IPC(8): F16K27/00F16K37/00
CPCF16K27/003F16K37/0025B60T8/361B60T8/3605B60T8/327F16K31/0655B60T8/362F16K37/0041B60T8/3675F16K37/005Y10T137/87885Y10T137/6011Y10T137/5987
Inventor 迪特尔·弗兰克西格弗里德·赫夫勒安德烈亚斯·泰希曼
Owner ZF CV SYST EURO BV