DE2255217A1 - TAX OR CONTROL VALVE FOR VEHICLE BRAKING SYSTEMS WITH AN ANTI-BLOCKING PROTECTION EFFECT - Google Patents

Description

concerning

Control or regulating valve for vehicle brake systems that work with an anti-lock effect

The invention relates generally to in connection Anti-lock devices to be used with vehicle braking systems and more particularly relates to an electro-pneumatic control valve for use in such devices.

In some of the anti-lock devices known up to now for brake systems are of different types Control or regulating valves used to at least the supply of a pressure medium taken from a pressure medium source to control some of the wheel brakes of a vehicle equipped with a braking system; one of the main disadvantages of these known valves is that they tend to supply the desired value of the brake in question Pressure to be exceeded and so cause the braked wheel to lock. Another undesirable one or disadvantageous feature of these known valves is that such an excess of the setpoint the brake pressure at which the vehicle wheel concerned

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is blocked, leads to a loss of steering stability of the vehicle and in the logical or electronic Establishment of the system to disturbances, because it is difficult with logical devices between an idle bath of a stopped vehicle and a blocked wheel of a vehicle in motion to distinguish the vehicle located. Furthermore, there is a disadvantageous or in these known valves undesirable feature in that they consume too much of the pressure available in the braking system, whereby it becomes difficult to restore normal pressure. Finally, there is a disadvantage of the known valves in the fact that they only compare the instantaneous pressure prevailing in the system with the pressure that is immediate was previously applied to the system.

The invention is based on the object of a Steuerbzw. Control valve for the anti-lock device of a To create vehicle brake system in which the above mentioned disadvantages or undesirable features of the valves known up to now are avoided, and that further has advantageous features.

Generally speaking, the invention provides a control valve for the anti-lock device a brake system has been created which has a relay device by means of which the anti-lock device a pressure is applied as a function of the queried pressure values derived from the device is, and in which further facilities are present that are dependent on the occurrence of predetermined conditions are actuated while the brake system is being actuated in order to regulate and effect the size of the pressure values requested, that the relay device is acted upon one after the other with pressures corresponding to these values.

The invention and advantageous details of the invention are described below with reference to schematic drawings explained in more detail using exemplary embodiments. It shows:

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1 shows an embodiment of a control valve in longitudinal section; and

2 shows a further embodiment of a control valve in partial section.

In Fig. 1 one recognizes a total of 1 designated Control or regulating valve or an anti-lock device for one to be equipped with it, not shown Braking system; this valve has a housing 2 with an upper housing part 3, a middle housing part 4 and a lower housing part 5, which is e.g. are interconnected; between the upper and the middle housing part and between the latter and the The lower part of the housing is (one seal or one O-ring 7 and 8, respectively).

The lower housing part 5 has a bore 9 which extends between two bores 10 and 11 of larger diameter, of which the bore 10 forms an inlet chamber; At the transitions between the smaller bore 9 and the larger bores 10 and 11, annular shoulders 12 and 13 facing away from one another are present, of which the annular shoulder 12 forms a valve seat. Furthermore, the lower housing part 5 has an inlet 14 which is intended to be connected to a pressure medium source, not shown, and which extends at right angles to the bore 10; In addition, the lower housing part 5 has an outlet 15 which opens at the annular shoulder 13 and is intended to be connected to a vehicle brake, not shown. In the lower end of the bore 10, a valve guide member 16 is arranged with a through bore, which is secured against displacement downward by a spring ring 18 built into an annular groove; in the B _o guide 17, a valve body 19 is slidingly guided, which is provided at its upper end with a seal 20, which by a negligibly small force in sealing contact with

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the valve seat 12 is held; this force is applied by a valve spring 21 which is arranged between an annular shoulder of the valve body and the valve guide part 16 which closes the inlet chamber 10. A bore or outlet channel 22 extends through the valve body 19 and normally communicates the bore 11 with the atmosphere, and seals 23 and 24 are incorporated in the valve guide member 16 which cooperate with the lower end of the bore 10 and the valve body 19, respectively . A relay part or piston 25 is slidably guided in the larger bore 11 with end faces 26 and 27 facing away from one another, and this piston carries an O-ring 28 on its circumference that cooperates with the wall of the bore 11 an extension 29 which has a free end portion 30 which forms a valve seat which cooperates with the valve body 19 at the upper end of the outlet channel 22 in a manner to be explained} between the lower end face 26 of the relay piston 25 and the annular shoulder 13 of the lower one Housing part 5, a return spring 31 is arranged, which normally holds the valve seat 30 at a distance from the valve body 19 and biases the relay piston with its upper end face 27 against a shoulder 32 at the lower end of the middle housing part 4, which closes the bore 11. The middle housing part 4 has a centrally arranged guide recess 33 in which a guide extension 34 is slidably guided, which is formed on the upper end face 27 of the relay piston; in the bore 11 is an enlargeable control or interrogation chamber of R _e defined 35 by the upper end face 27 laiskolbens 25 and the lower end of the middle housing member 4, while between the lower end face 26 of the relay piston and the annular shoulder 13 of the lower housing parts 5 a discharge chamber 36 lies.

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The middle housing part 4 has two adjacent chambers or bores containing electromagnets 37 and 37a, which at the upper end 38 of the middle housing part open out and each have a bottom 39 or 39a and are separated by a wall 40 which is attached to the middle Housing part is formed and provided with a transverse slot 41 which has an opening for leading out the connecting lines 42 and 42a for two electromagnets to be described below 43 and 43a forms. The middle housing part 4 has a control or query channel 44 which is intended for this purpose is, with a not shown, to be operated by the driver with the foot valve to operate the brake system to be connected; the channel 44 crosses the larger of two stepped vertical bores 45 and 46, which in turn open out at the bottom 39 of the chamber 37 and at the shoulder 32 of the central housing part. In the lower one The end of the larger bore body 45 is an insert 47 screwed in, which has a continuous channel 48 for establishing a connection between the interrogation chamber 35 and the inlet port 44; the insert 47 is provided with a valve seat 49 with which a check valve body 50 cooperates against this valve seat is normally biased by a negligibly small force exerted by an between the Check valve body and the central housing part 4 arranged valve spring 51 is applied.

The electromagnets 43 and 43a include pole pieces 52 and 52a, which are arranged coaxially with the chambers 37 and 37a and protrude into them; the pole piece 52 lies with its lower end on the floor 39 of the chamber 37 and has an extension which protrudes into the smaller bore 46 to guide this pole piece; the Pole piece 52a rests with its lower end on the bottom 39a of the chamber 37a and has an extension which is shown in FIG a recess 53 of the middle housing part 4 engages, to guide this pole piece The cylindrical or ring

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Fönuigen electric coils 54 and 54a of the electromagnets 43 and 43a are arranged in the chambers 37 and 37a so that they are supported by the pole pieces 52 and 52a; the connecting lines 42 and 42a of the two coils are led out of the middle housing part 4 through the slots 41, so that it is connected to the logic or electronic part of the anti-lock device, not shown can be. Drill- or bush-shaped components 55 and 55a are coaxial with the coils 54 and 54a arranged with through openings 56 and 56a} these Components work together with seals 57 * 57a or 58, 58a, which are inserted into the pole pieces 52, 52a or coil holders 59, 59a are installed, which are held in contact with the upper ends of the coils by a resilient clip 60, which is supported between the coil holders on the one hand and the underside of the upper housing part or cover 3.

The electromagnets 43 and 43a include hexagonal armature parts 61 and 61a, which are arranged longitudinally movable in the openings and 56a of the sockets 55 and 55a and at their upper ends each have an outlet valve body 62 and 62a, which are normally pretensioned against outlet valve seats and 63a, which are formed on the housing cover 3 and surround outlet channels 64 and 64a; A negligibly small force applying buckling springs 65 and 65a, which are supported between the armature parts and the coil holders, are used to pretension these valve bodies. In the preferred embodiment, the outlet channel 64 has a considerably smaller cross-section than the outlet channel 64a in order to limit the exit velocities of a pressure medium in different ways for a purpose still to be explained; however, the outlet channels 64 and 64a can optionally have cross-sections of essentially the same size. The ratio between the cross-sections of the outlet passages 64 and 64a is related to the volumetric characteristics of the not

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shown brake system, and if the capacity of the brake system is relatively small, you can use the exhaust duct Omit 64 as shown in FIG. Another valve body is located in the lower end of the armature part 61 66 incorporated, normally from a valve seat 67 at the top of the pole piece 52 in the vicinity of a channel 68, which connects the further bore 45 with the opening 56 of the bush 55. Furthermore, this is middle housing part 4 is provided with a channel 69 which a connection between the interrogation chamber 35 and the Electromagnet containing chambers 37 and 37a above the Manufactures bobbin holders 59 and 59a; furthermore from FIG. 1 It can be seen that a narrow, tortuous, generally designated B flow path extends from the inlet channel 44 through the interrogation chamber 35 »the larger bore 45» the channel 68 of the pole piece 52 »the opening 56 of the socket 55 and the over the coil holders 59 and 59a of parts of the chambers 37 and 37a for the electromagnets extends to the channel 69; although the throttling of the flow channel B is effected by the various components described that delimit it, but according to the invention it is also intended that this flow channel also be invariable by various other or adjustable throttle devices, e.g. nozzles, swirl chambers, needle valves of known type or the like could be throttled.

The following is the operation of the device according to Fig. 1 explained in more detail. Will the driver of the vehicle in the position of the parts described in FIG. 1, perform a service braking or the brake press to reduce the speed of the vehicle, the device shown is via the inlet or Control channel 44 is supplied with a control or query pressure as soon as the driver e.g. Valve of known type operated. The control pressure medium flows then from the inlet 44 via the flow path B su to the control chamber 35 where it reaches the upper end face 27 of the

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Relay piston 25 acts so that a control force Pc is generated by which the relay piston is moved downward against the force of the return spring 51. In this downward movement first comes the valve seat 50 of the relay piston 25 to rest on the valve body 19 »so that the associated outlet channel 22 is closed and the outlet chamber 56 is shut off from the atmosphere; afterwards effected the downward movement of the relay piston, that the valve body 19 moves against the force of the valve spring 21 downward and is lifted from the valve seat 12 of the lower housing part 5, so that a flow connection between the Inlet 14 and outlet 15 is established. The supplied Pressure medium flows from the source, not shown, through the inlet 14, the inlet chamber 10 and the outlet chamber 56, so that an outlet pressure appears at outlet 15, which of course serves to actuate the vehicle brakes, not shown, connected to the outlet in order to reduce the speed of the vehicle.

As soon as the reaction force Fr, which arises from the fact that the output pressure in the outlet chamber 56 to the lower The end face 26 of the relay piston 25 acts, has become substantially equal to the control force Fc, the relay piston becomes moved upwards in the direction of a transition position and the valve body 19 follows this movement in contact with the valve seat 50 of the relay piston until it comes to rest on the valve seat 12 of the lower housing part 5. Should one greater braking effect are produced in order to brake the vehicle more strongly, that via the channel 44 becomes effective Brought control pressure increases, with the result that the control force Fc increases and the relay piston 25 together is moved with the valve body 19 in the manner described further in the direction of the transition position, whereby the output pressure at the outlet 15 is increased accordingly.

If the desired braking effect is achieved without the wheels of the vehicle being blocked or the

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Vehicle skid, and the. Driver that foot-operated valve free again to allow the control pressure medium to escape to the atmosphere via the control channel 44, Of course, a pressure difference builds up at the check valve 50 between that prevailing in the control chamber 35 Control pressure and the pressure medium escaping to the atmosphere via the control channel 44, so that the Valve body 50 against the force of its return spring 51 depending on this pressure difference from the valve seat 49 of the EinsatζStücks45 can lift to the channel 48 to open to cause the escaping control pressure medium from the control chamber 35 via the Channel 48 and the larger bore 45 directly to the control channel 44 flows, whereby the throttled flow channel B is practically "short-circuited" or bypassed with it the control pressure medium can escape very quickly. With such a rapid escape of the control pressure medium from the control chamber 35 cause the reaction force Fr and the return spring 31 'so that the relay piston 25 moves upwards in the direction of its original position in Abutment on the lower end face 27 of the middle housing part 4 moves; this is the valve seat 30 of the Valve body 19 lifted to reopen the outlet channel 22 of this valve body and again an outlet flow connection between dem.Auslaßkanal 15 and the outlet chamber 36 on the one hand and the atmosphere on the other to manufacture. In this way it is achieved that the brakes are relieved of the output pressure and made ineffective because the actuating pressure medium via the outlet channel 15 »the outlet chamber ϋϊ6 and the outlet channel 22 of the valve body 19 can escape to the atmosphere; as soon as the actuation pressure medium escapes, of course disappears also the reaction force Fr.

As soon as the output pressure for actuating the vehicle brakes during the above-described actuation the braking reaches such a height that it is sufficient to

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Blocking wheels or causing the vehicle to skid, this fact is made clear by the ones not shown logically or as a sensor working parts of the anti-lock device detected, and these parts lead then a signal to valve 1 indicating that the output pressure for actuating the brakes is being reduced got to. The coil 54 of the electromagnet 43 is excited by the logic signal, so that a magnetic force is generated which causes the armature 61 to move against the force of the return spring 65 downward and in contact with the Pole piece 52 is held magnetically; here is the The valve body 66 of the armature 61 is brought into contact with the valve seat 67 of the pole piece 52, around the channel 68 of the pole piece to close and thus shut off the control channel 44-, while at the same time the outlet valve body 62 of the armature 61 is lifted from the valve seat 63 on the upper housing part 3 in order to open the narrow outlet channel 64. Once the Control channel 44 has been shut off and the outlet channel 64 has been opened, the control pressure medium can be throttled From the control chamber 35 via the channel 69, the parts of the chambers lying above the coil holders 59 and 59a 37 and 37a for the electromagnets and the now open one Outlet channel 64 escape to the atmosphere, so that the pressure of the control pressure medium in the control chamber is rather slow is decreased to decrease the control force Fc accordingly. Since the control pressure medium is drained to to decrease the control force Fc continuously, acts the reaction force Fr that the relay piston 25 out of its Transitional position is moved up to the valve seat 30 from the valve body 19 so that the outlet channel 22 of this valve body is opened and the actuating pressure medium escape from the vehicle brakes to the atmosphere can. Of course, this throttled discharge of the actuating pressure medium from the control chamber 35t causes that the one appearing at the outlet duct 15, on the vehicle brakes acting pressure is reduced accordingly, so that the braking effect is also reduced.

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If the above-described reduction in The braking effect is not sufficient to release the locked wheels or to stop the vehicle from skidding, this fact is determined by the sensing device and the logical part of the .Brake system, whereupon the Valve 1 is again supplied with a signal indicating that the wheels are still locked and that therefore the outlet pressure of the valve must be further reduced. This additional logic signal causes the coil 5 ^ a des Electromagnet 43a energized to generate a magnetic force, by means of which the armature 61a is moved downward against the force of the return spring 65a in order to be in contact with to be held magnetically to the pole piece 52a; through this the valve body 62a of the armature 61a is lifted downwards from the outlet valve seat 63a of the housing cover 3, to also open the outlet channel 64a. Ba now both exhaust ducts 64 · and 64a are open while the control channel 44 is blocked, the control pressure medium can from the Control chamber 35 escape faster, so that the pressure of the pressure medium at the outlet in the manner described faster, which naturally reduces the degree of actuation of the vehicle brakes correspondingly to the To end the locking of the wheels or the skidding of the vehicle fairly quickly.

As soon as the sensing part and the logic part of the brake system determine that no more wheels are blocked, no more signals are fed to the electromagnets 43 and 43a of the valve 1, so that the coils 54 and 54a are de-energized and no magnetic forces of attraction between the pole pieces 52 , 52a and the armatures 61, 61a act more »As soon as this happens, the return springs 65 and '65a move the armatures 61 and 61a upwards again in the direction of their starting position, around the outlet valve bodies 62 and. To bring 62a back into contact with the valve seats 63 and 63a of the housing cover 3 and thus to close the outlet channels 64 and 64a '; with this movement d <g © Äakar 61 in the direction of its starting position it becomes natural

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the valve body 66 from the valve seat 67 of the pole piece 52 lifted to open the channel 68 and again a flow connection via the channel B between the control channel 44 and the control chamber 35 to produce.

As soon as the connection between the control channel 44 and the control chamber 35 is established again, the Relay piston 25 and valve body 19 actuated again to increase the pressure appearing at outlet 15, which acts on the vehicle brakes, so that a stronger braking effect is produced; if this causes a new one Locking of wheels is caused, the anti-lock device of the brake system responds again, so that the Sensing device and the logical part in turn to valve 1 supply a signal which, in the manner described, causes the pressure appearing at outlet 15 to be reduced will. Of course, the anti-lock device and the valve 1 continue to carry out such work cycles to the To counteract locking of wheels until the vehicle has been walked to the desired extent,

Fig. 2 shows a further embodiment, designated as a whole by 100, of an anti-lock device or a valve which operates in substantially the same manner and which has substantially the same components like the valve 1 according to FIG. 1, except that the housing cover 3 is only provided with one outlet channel 64a is, as the valve 100, as mentioned, for use in braking systems operating with an anti-lock effect is determined with a comparatively small capacity.

In the valve 100 according to FIG. 2, the relay piston 25 is actuated as a function of the fact that a control pressure medium the control channel 44 and the control chamber 35 is supplied so that a corresponding output pressure at the outlet channel 15 appears to apply the vehicle brakes; if this actuation leads to the locking of the wheels,

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the sensing device and the logic part sends a signal to the electromagnet 43 to the valve body 66 of the armature 61 to rest on the valve seat 67 des.Polstücks so that the channel 68 is closed to the Shut off control channel 44 in the manner already described · If wheels remain blocked, guide the sensing device and the logic part to an additional signal to excite the electromagnet 43a, thus the associated Armature 61a brought into contact with the pole piece 52a and magnetically is held to the valve body 62a of the armature 61a from the Auslaßventilsitζ 63a of the housing cover lift off and thus open the outlet channel 64a so that the Control pressure medium from the control chamber 35 via the channel and the open outlet channel 64a to the rather quickly Atmosphere can escape. As soon as the control force Fc is reduced in this way, the reaction force Fr causes the relay piston 25 to move out of its lower position is moved up to its valve seat 30 of the Lift off valve body 19 and open outlet channel 22, so that part of the actuating pressure medium supplied to the brakes can escape to the atmosphere in order to reduce the operating force acting on the brakes. As soon as the locking of the wheels has thereby been removed, the sensing device and the logic part terminate the Supply of the signals to the valve 100, so that the electromagnets 43 and 43a are de-energized and the return springs 65 uhd 65a return the armature 61 and 61a to their original position in order to establish a flow connection between the control channel 44 and the control chamber 35 via the channel B and the valve body 62a to rest again to bring to the valve seat 63a so that the outlet passage 64a is closed.

As soon as there is again a flow connection between the control channel 44 and the control chamber 35, the Control force Fc that the relay piston 25 is moved back down 'to actuate the valve body 19, so on

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the .Auslaßkanal 15 again the pressure in question or a higher pressure appears to apply the vehicle brakes correspondingly more strongly; if here again strife are blocked, the anti-lock device comes into operation again, i.e. the sensing device and the logical Part lead the valve 100 again a signal to the pressure at the outlet channel A in the manner described to reduce. Of course, the anti-lock device and the valve 100 carry out further work cycles in order to achieve this Prevent the wheels from locking until the vehicle speed has been reduced to the desired extent is.

All information and features disclosed in the documents, in particular the disclosed spatial design, as far as they are compared individually or in combination are new to the state of the art, claimed as essential to the invention.

Expectations

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Claims (1)

A η s ρ r .ü che
(German version) 1. Control valve for one with an anti-lock • effect working 3? ahr tool brake system with one in one Housing arranged relay valve, which by a control pressure medium pressure is operated, which one, relay valve actuator is supplied as required via an existing flow channel in the housing to one of the Housing supplied with another iTuddruck via the housing a pressure proportional to the control pressure medium pressure to the effect. bring, marked by a first electromagnet (43) for controlling the flow channel (B) in the housing, which when a predetermined Operating state is energized to the supply of the control pressure medium pressure to the relay valve actuator (25, 35) shut off and a second electromagnet (43a) for controlling the flow channel (B), which is excited when another predetermined operating condition occurs, to the extent that this shut-off in the relay valve actuation device (25, 35) to release the enclosed control hydraulic pressure « Valve according to Claim 1, characterized in that for shutting off the supply of the control pressure medium pressure on the flow channel. (B) surrounding first valve seat (67) and a first valve body (66) are provided, and the first valve body (66) is brought into contact with the first valve seat (67) by the first electromagnet (43) as soon as the first electromagnet (43) is energized. Ί I! S? 1 / Π7 57 3. Valve according to claim 1 or 2, characterized through one formed in the housing (3) with the flow channel (B) between the first valve seat (67) and the outlet passage connected to the relay valve actuating device (25, 35), an outlet channel formed on the housing, the outlet valve seat (63a) surrounding the outlet channel and an outlet vent i lic ör ρ er (62a), which by the second Electromagnet (43a), when energized, is lifted from the exhaust valve seat to the enclosed To release the control pressure medium, 4. Valve according to one of claims 1 to 3, characterized by one formed in the housing (3), with the flow channel (B) between the first valve seat (67) and the relay valve actuation device (25, 35) connected further outlet channel (64), one formed on the housing, surrounding the further outlet channel further outlet valve ^ itz (63) and a further outlet valve body (62), which by the first electromagnet (43), when this is excited, is lifted from the further exhaust valve seat to the enclosed Release control pressure medium. 5. Valve according to claim 4, characterized in that that the further outlet channel (64) is throttled in a predetermined manner in order to restrict the discharge of the to cause included control pressure medium pressure. 6. Valve according to one of claims 1 to 5 »marked by a further, in the housing (4) formed flow channel (48), which makes it possible to to bypass the first mentioned flow channel (B), as well as a check valve (50), which the further flow channel (48) 30 9 821/0757 11 OO L I / normally locked, but by one on it Effect coming pressure difference between the pressure of the relay valve actuating device (25, 35), included control pressure medium and the pressure of the escaping from the first-mentioned flow channel (B) Control pressure means can be actuated. Valve according to one of Claims 1 to 6, characterized in that in addition to the first electromagnet (43) a pole piece (52) supported by the housing (4) and which forms part of the flow channel (B) forming channel (68), and by an electrical coil (54) is enclosed, which when the first said predetermined operating state is excited, and an armature (61) is arranged in the first electromagnet which can be brought into contact magnetically on the pole piece (52), and the first valve seat (67) on the pole piece ' (52) is formed and surrounds its channel (68), and the first valve body (66) and the valve body (62) of the further outlet valve (62, 63) solid constituents Form anchor (61). 309821/0757 DB. EBICH NEUGEBAUKB PATENT ADVERTISER β MÜNCHBN 8 · - POSTFACH Sl IWBIBBOOKIHITBAKI IO (BBBBN BBM tllTlliai «VATBBTAKT) H MUNICH TBLkFOM (0 * 11) ii> 433T 0. SBtBAl TBLBORAMMADKESBB ι BATABiAFATBMT Munich TBLBZ «-344Tt Claims (American form) 1. Control or regulating valve for an anti-lock device for use in a vehicle brake system, characterized in that a housing (2) is present, that in the housing a relay device (25) is movable, which can generally be actuated as a function of a control pressure medium pressure which, as required is brought into effect on the relay device in order to generate a fluid pressure supplied to the housing via the housing Appropriate way to bring about the fact that a device is available which serves to control the pressure medium pressure to regulate, in order to let it act as required on the relay device, that a device (66, 67) is available, to include the control pressure medium acting on the relay device when a predetermined operating state occurs, and that another device (62a, 63a) is present, which is used to control the enclosed control pressure medium when another predetermined Bebe occurs to let the drive state escape, and that the relay device on the reduction of the pressure of the enclosed control pressure medium when it escapes responds to bring about a corresponding proportional reduction in the hydraulic pressure brought into effect. 2. Valve according to claim 1, gekenn ze lean t by a throttled in the housing (2) Flow channel (B) through which the control pressure medium flows as soon as it is caused as required the relay device (25) to act. 3. Valve according to claim 1 and 2, characterized in that an electromagnet (43) is present, which is responsive to the occurrence of the first predetermined operating state to the relay device (25) to include acting control pressure medium. 4. Valve according to claim 1 to 3 »characterized in that the device (62a, 6Ja) is another Electromagnet (43a) is assigned to which, when the other predetermined operating state occurs, the enclosed control pressure medium escape via the device leaves. 5 »valve according to claim 3» thereby g e k e η η ze.i without the electromagnet (43) having a device (62, 63) is assigned that a throttled escape of the enclosed control pressure medium after his Enclosing by the electromagnet allows * 6. Valve according to claim 4, characterized in that parts of the first electromagnet (43) and the other electromagnet (43a) together with parts of the housing (2) at least part of the throttled Form flow channel (B). 7. Valve according to claim 4 and 6, characterized in that the first electromagnet (43) is excited as a function of the occurrence of the first predetermined operating state to das.auf the relay device (25) to include effective control pressure medium and a throttled escape of the enclosed control pressure medium to enable, and that the other electromagnet (43a) depending on the occurrence of the other predetermined operating condition is energized to provide an additional flow path for the escape of the trapped Control pressure means to open. 8. Valve according to one of claims 3 to 7 »thereby g e k e η η ζ e. i c h η e t that to the first electromagnet (43) a first valve seat (67) surrounding the throttled flow channel (B) and a first valve body (66), which cooperates with the first valve seat, and that the first valve body against the first ^ ^::; lire Ao - $ - Valve seat is pushed to the throttled flow channel to close and to include the control pressure medium acting on the relay device (25) as soon as the first Electromagnet is excited. 9 · Valve according to claim 8, characterized in that a throttled Outlet channel (64) formed and with the throttled flow channel (B) between the first valve seat (67) and the Relay device (25) is connected that the housing has a second valve seat surrounding the throttled outlet channel (63) has that the first electromagnet (43) has a second valve body (62) which is connected to the first valve body (66) is firmly connected and moves together with it and normally against the second valve seat is pressed to keep the throttled outlet channel closed, and that the second valve body from the second Valve seat is lifted to open the throttled outlet channel and a throttled escape of the trapped Allow control pressure means as soon as the first electromagnet is energized. 10. Valve according to claim 9 ». characterized in that the housing (2) has a different outlet channel (64a) with the throttled flow channel (B) between the first valve seat (67) and the relay device (25) is connected that on the housing a third valve seat (63a) surrounding the other outlet channel is designed that a third valve body (62a) belongs to the other electromagnet (43a), which is normally in System is held on the third valve seat to keep the other outlet channel closed, and that the third valve body is lifted from the third valve seat to open the other outlet channel and an additional one Allow the enclosed control pressure medium to escape as soon as the other electromagnet is energized will. 3 0 9 8 2 1/0 7 B 7 - Hf - - 11. Valve according to one of claims 2 to 10, characterized in that the housing (2) has a has another flow channel (48) which makes it possible to bypass the throttled flow channel (B), and that the control pressure medium acting on the relay device (25) is discharged via the other flow channel, when it is effected that the control pressure medium acting on the relay device as required via the throttled Flow channel is discharged. 12. Valve according to claim 11, characterized in that to the other flow channel (48) a check valve body (50) for controlling this flow channel and that the check valve body is normally biased towards one position is, in which it closes the other flow channel, but is movable in the direction of an open position and is moved in this direction to prevent the escape of the control pressure medium acting on the relay device (25) depending on allowing a pressure difference to occur across the check valve body, which is the difference between the pressure of the control pressure medium acting on the relay device and the pressure of the pressure medium which is derived from the throttled flow channel (B). 15. Valve according to one of claims 2 to 10, characterized in that the relay device (25) together with the housing (2) delimits a control chamber (55) connected to the throttled flow channel (B), that in the housing there is another channel (48) which is connected to the control chamber and the throttled flow channel so that the throttled flow channel is lets circumvent the fact that the control pressure medium is discharged from the control chamber via the other channel as soon as the control pressure medium supplied to the throttled flow channel is discharged so that one den.anderen in the housing Ί C) <) π ') I / η 7 τ; ·; Channel surrounding fourth valve seat (49) is present that the fourth valve seat is assigned a fourth valve body (50) which normally rests against the fourth valve seat to keep the other channel closed, and that the fourth valve body is lifted from the fourth valve seat to open the other channel, so that the Control pressure medium escapes from the control chamber through the other channel depending on the fact that on the fourth Valve body a pressure difference occurs, which is the difference between the pressure of the control pressure medium in the Control chamber and corresponds to the pressure of the control pressure medium, which is discharged from the throttled flow channel will. 14 ·. Control or regulating valve for a vehicle brake system operating with an anti-lock effect, characterized in that a housing (2) is provided that a _{relay device (25) can be moved in the housing and} delimits a control chamber (35) together with the housing that the relay device can generally be actuated as a function of the pressure of a control pressure medium in the control chamber in order to effect the supply of a brake actuation pressure medium to the brake system and the discharge of the brake actuation pressure medium from the brake system, that the housing has a control channel (44) which, as required, can serves to supply or derive a control pressure medium that in the housing a throttled flow channel (B) establishes a connection between the control channel and the control chamber that two electromagnets (43, 43a) are arranged in the housing, which are excited when two different predetermined operating states occur and at least parts of the thrush Elten flow channel form that the electromagnets are assigned two outlet valves (62, 63 »62a, 63a) switched on in the throttled flow channel, which control the escape of the control pressure medium from the control chamber, that to the one electromagnet (43) another valve Ί Π ') M''I / Π 7 S 7 ay (66, 67) belongs to the flow of the control pressure medium controls through the throttled flow channel, and its valve body (66) with the valve body (62) of one of the Exhaust valves is connected, so that both valve bodies move together that the one electromagnet when it occurs one of the predetermined operating states is excited to the other valve body and the valve body dea one To bring exhaust valve in the throttled flow channel in a position in which the control pressure medium in the 'Control chamber is enclosed because the control channel is shut off is that here the enclosed control pressure medium is derived from the control chamber, and that afterwards the other electromagnet (43a) is energized when the other predetermined operating condition occurs to the valve body (62a) to bring the other outlet valve in the throttled flow channel into a position in which Another outlet is open, via which the enclosed control pressure medium escapes after which puts an electromagnet in the state of excitation has been. 15 · Valve according to claim 14, characterized in that two outlet channels in the housing (2). (64, 64a) are present that the outlet valve body (62, 62a) are normally biased in the housing towards a position in which they close the outlet channels hold, and that the outlet valve body are brought into the housing in a position in which the Outlet channels are open to allow the trapped control pressure medium to escape as soon as the associated Electromagnets ($ 4, 43a) are excited. ' 16. Valve according to claim 15 »characterized in that the cross section of one outlet channel (64) is smaller than that by a predetermined amount Cross section of the other outlet channel (64a) ? (M-IR? 1/07 P 7 17 · Valve according to claim 16, characterized in that the one outlet channel (64) with the throttled flow channel (B) is connected between the other valve (66, 67) and the control chamber (35), and that the other outlet channel (64a) with the throttled flow channel between the one outlet channel and the control chamber connected is. 18. Valve according to claim 15 to 17 »characterized in that the housing (2) has two outlet channels (64, 64a) has surrounding exhaust valve seats (63 »63a) with which the exhaust valve bodies (62, 62a) work together, that the Auslaßventilkorper are normally biased into abutment on the exhaust valve seats to the exhaust channels to keep closed, and that the Auslaßventilkorper are lifted from the exhaust valve seats to the. to allow enclosed control pressure medium to escape as soon as the associated electromagnets (43 * 43a) are excited. 19 · Valve according to one of claims 14 to 18, characterized characterized in that the one electromagnet (43) has a pole piece (52) supported by the housing (2) comprises that the pole piece is provided with a continuous channel (68) which forms part of the throttled flow channel (B) forms that the housing receives a coil (54) which surrounds the P lstück and by means of which the electromagnet when a predetermined operating state occurs, it is excited that an armature in the electromagnet (61) is arranged, which is moved when the coil is energized, and that the armature the valve body (62) of one outlet valve and supports the valve body (66) of the other valve. 20. Valve according to claim 19 »thereby drawing g e k e η η t that the pole piece (52) has a third valve seat (67) surrounding the continuous channel (68), with which the valve body (66) of the other valve cooperates, that with the armature (61) a spring (65) 309821A0757 cooperates that the valve body (62) of one outlet valve normally in contact with the seat (63) of one outlet valve and the valve body of the other valve at a distance from the third valve seat, that the armature against the force of the spring depending on the excitation iron the coil (5 ² O can be moved in the direction of a position in which the valve body of the other valve rests against the third valve seat in order to enclose the control pressure medium in the control chamber (35) and at the same time the valve body of one outlet valve of the one Exhaust valve seat is lifted to open the one outlet channel (64 ·) so that the enclosed control pressure medium is dev / calibrated through it. 21. Valve as claimed in any one of claims 14 to 20, that in the housing (2), another channel (48) is present _s -. Which allows a connection between the control chamber (35) and the control channel (44) and at the same time the throttled. To bypass flow channel (B) that the other channel is controlled by a check valve body (50), and that the check valve body is normally biased towards a position in which it keeps the other channel closed, and that the Ruckschiagvemtilkörper towards a Position is movable in which the other channel is open to allow the control pressure medium to escape from the control chamber in response to the fact that a pressure difference occurs on the check valve body which is the difference between the pressure of the control pressure medium in the control chamber and the pressure of the pressure medium discharged via the control channel as required * 22. Valve according to claim 14 to 21, characterized in that the housing (2) has an inlet channel (14) for connecting a source for a brake actuation pressure medium and an outflow channel (15) for Connection to at least one brake of a braking system Π ο ο ο); η τ r ^r J -9- has that in the housing a with the outflow channel (15) connectable outlet duct (9) is present that a fourth valve body (19) is movably mounted in the housing, which controls the flow connection between the inlet channel, the outlet channel and the outlet channel that to the Relay device a piston (25) slidingly guided in the housing with end faces facing away from one another belongs that the one end face (27) of the piston with the pressure of the control pressure medium in the control chamber (35) can be acted upon so that the piston has an extension (29) on its other end face (26) which has a free End (30) which cooperates with the fourth valve body (19) that the piston is initially dependent can be moved by the fact that the pressure of the control pressure medium in the control chamber acts on one end face (27), in order to bring the free end of the extension to bear against the fourth valve body and thus the flow connection to interrupt between the outlet channel and the outlet channel, that the piston is thereafter movable to together with him the fourth valve body in the direction to move to a position in which a Druckmittelzumeßverbindungen is present between the inlet channel and the outlet channel, and that the one at the outlet channel the prevailing positive pressure on the other end face (26) of the piston acts opposite to the direction in which the pressure of the control pressure medium in the control chamber on the other end face (27) of the Piston acts. η η «π / η 7 r> 7th