Electromagnetic actuator assembly, pressure regulation module and vehicle brake system including the electromagnetic actuator assembly - Patents.com

Abstract

The electromagnetic actuator assembly (101) comprises at least one first electromagnetic actuator (BV), the first coil assembly (201) having at least one first coil core (202) and first coils (203, 204), and a movable magnetic first armature body (208), the first armature body (208) being movable from a first position to a second position (149) by a magnetic field generated by the first coil assembly (201), in which the first armature body (208) is attracted towards a first surface (205) arranged opposite the first armature body (208) and in contact with the first coil core (202). (BV), and at least one second electromagnetic actuator (EV, AV), comprising a second coil assembly (301) having at least one second coil core (302) and second coils (303, 304), and a movable magnetic second armature body (308), the second armature body (308) having a damping device (309) provided on the second armature body (308), movable from a first position to a second position (149) by a magnetic field generated by the second coil assembly (301), in which the second armature body (308) is attracted towards a second surface (305) and abuts against the second surface (305) by the damping device (309). In this case, the first surface (205) and the second surface (305) are formed to have the same structure.

Description

[Technical field]

[0001] The present invention relates to an electromagnetic actuator assembly comprising at least one first and a second electromagnetic actuator, a pressure modulation module for a vehicle braking system and a vehicle braking system comprising such an electromagnetic actuator assembly.

[0002] Electromagnetic actuator assemblies, for example with a plurality of tilting armature valves, are used for pressure regulation, for example in vehicle braking systems and air handling systems, for example in commercial vehicles or passenger transport buses. For example, a braking system for a vehicle with an electronic service brake system comprises a plurality of solenoid valves for pressure regulation, for example in the form of inlet and outlet valves for a pressure regulation module.

[0003] Such an electromagnetic actuator assembly and a tilting armature valve configured for this are known, for example, from DE 10 2014 115 206 A1. The known tilting armature valve has the task of providing an improved control valve for a pressure regulating module of a vehicle. The tilting armature valve comprises, in particular, a coil element with at least one coil core, a coil arranged radially surrounding the coil core, an armature (so-called tilting armature) supported at one end face thereof by a support and movable from a first position to a second position by the actuation of the coil, and a spring for moving the armature, which exerts a force on the armature in order to move the armature towards the first position. A sealing element is arranged on the side of the armature opposite the coil element. A valve seat with an outlet and an inlet for the fluid is formed in the half shell. In this case, the outlet is fluid-tight closable by a sealing element in the first position of the armature.

[0004] Furthermore, other constructional forms of such solenoid valves are known and are described, for example, in DE 102014115207 A1, DE 102018123997 A1 or DE 102016105532 A1.

[0005] Due to the often different requirements in such applications, for example the different conditions of use and the functional requirements imposed on the electromagnetic actuators or valves, different configurations of actuators are usually used for different configurations, for example inlet valves, outlet valves or back-up valves, which are adapted to the respective requirements and conditions of use. Thus, for example, in DE 102014115206, a perforated disk is provided which provides a stop for the damping element when the armature is arranged in the second position or is moved to the second position. The perforated disk formed in this way offers the advantage that a uniform component concept can be easily realized. Thus, a tilting armature valve configured as a back-up valve is primarily distinguished by a further perforated disk and an additional port. With the perforated disk, the tilting armature valve can be configured as a normally closed valve or a change-over valve for back-up applications.

[0006] However, besides the positive effect of reduced noise generation, the damping element can have a negative effect on the magnetic force acting on the armature body, since it increases the air gap between the armature body and the coil core, thus increasing the magnetic resistance, which often reduces the efficiency of the solenoid valve.

[0007] The object of the present invention is to improve an electromagnetic actuator assembly of the type described at the beginning in such a way that a relatively high efficiency of the actuator assembly and, nevertheless, low production costs are possible, even when different functional requirements are imposed on the individual electromagnetic actuators.

[0008] The invention relates to an electromagnetic actuator assembly of the type mentioned at the beginning, to a pressure regulation module for a vehicle braking system and to a vehicle braking system comprising a pressure regulation module comprising such an electromagnetic actuator assembly, as set forth in the accompanying independent claims. Advantageous configurations and refinements of the invention are set forth in the dependent claims and the following description.

[0009] In particular, one aspect of the invention relates to an electromagnetic actuator assembly having at least one first electromagnetic actuator, the first coil assembly comprising at least one first coil core and a first coil arranged around the first coil core, and a movable magnetic first armature body as a movable actuator element, the first armature body being movable from a first position to a second position by a magnetic field generated by the first coil assembly, in which the first armature body is attracted towards a first surface arranged opposite the first armature body, different from the first coil core, and in contact with the first coil core. Furthermore, at least one second electromagnetic actuator is provided, the second electromagnetic actuator comprising a second coil assembly with at least one second coil core and a second coil arranged around the second coil core, and a movable magnetic second armature body as a movable actuator element, the second armature body having a second damping device arranged on the second armature body, the second armature body being movable from a first position to a second position by a magnetic field generated by the second coil assembly, in which the second armature body is attracted towards the second surface and abuts against the second surface by the second damping device, in which at least the first surface and the second surface are formed with the same structure as each other.

[0010] Another aspect of the invention relates to a pressure modulation module for a vehicle braking system comprising such an electromagnetic actuator assembly.Furthermore, the invention relates to a vehicle braking system comprising such a pressure modulation module.

[0011] The invention provides an electromagnetic actuator assembly, which allows a relatively high efficiency of the actuator assembly and nevertheless low manufacturing costs, even when different functional requirements are imposed on the individual electromagnetic actuators. For example, it is desirable to reduce the noise generation of the switching operation, which is often annoying when actuators are frequently switched in vehicle braking systems, for example during passenger transport, when undamped abutment of the armature is perceived as annoying by bus passengers or passers-by due to intense and loud structure-borne noise, by means of a damping element provided on the armature body. In contrast, it has been recognized according to the invention that in the case of actuators which are switched less frequently, the damping element can often be omitted, whereby the air gap between the armature body and the coil core is reduced and thus the efficiency of the actuator is increased. According to the invention, both advantages can be combined in an actuator assembly, in particular in a pressure regulating module for vehicle braking systems, without a significant increase in the number of components for actuators with different functional requirements. Because for both actuators with different abutment surfaces, with or without damping elements, the same coil design can be used, for example, with the same structure of first and second surfaces located opposite each armature body, which reduces manufacturing costs. Thus, the invention nevertheless allows one common coil design to be used for armature bodies of different configurations, which makes it possible to keep manufacturing costs low.

[0012] According to one embodiment, the first surface is formed on a first component of the first electromagnetic actuator, and the second surface is formed on a second component of the second electromagnetic actuator. In this case, the first component and the second component are formed with the same structure. This can reduce the number of components with different configurations for each actuator, which can reduce the manufacturing cost.

[0013] According to one embodiment, the first component is at least one member of the first coil assembly, and the second component is at least one member of the second coil assembly. For example, the first component is one member or the entire first coil assembly, and the second component is one member or the entire second coil assembly. This allows the use of at least partly the same structural design of the coil assemblies.

[0014] According to one embodiment, the first component comprises a first coil and the second component comprises a second coil, which allows for an at least partially common coil design to be used.

[0015] According to one embodiment, additionally or alternatively, the first component includes a first coil core and the second component includes a second coil core, which also allows the use of at least partially the same structural design of the coil assemblies.

[0016] According to one embodiment, the first armature body is supported by a first support assembly and the second armature body is supported by a second support assembly formed with the same structure as the first support assembly, thereby allowing the use of one common and same support concept.

[0017] According to one embodiment, the first surface of the first electromagnetic actuator has at least one abutment contour against which the first armature body is adapted to come into contact in the second position, which provides the advantage that even if the first coil core is possibly worn at the abutment surface by frequent direct abutment of the first armature body, there is still an abutment contour against which the first armature body can also come into contact in the second position, without further wearing the coil core.

[0018] According to one embodiment, the first and second armature bodies are formed as plate-like armatures.

[0019] According to one embodiment, the first electromagnetic actuator is configured as a de-energized open actuator, in particular as a de-energized open valve element, and the second electromagnetic actuator is configured as a de-energized closed actuator, in particular as a de-energized closed valve element, which constitutes an advantageous application area of ​​the actuator assembly according to the invention.

[0020] According to one embodiment, the first and second electromagnetic actuators are formed as electromagnetic valve devices with a first or second armature body as a respective valve element, in particular, the first and second electromagnetic actuators are formed as respective solenoid valves.

[0021] According to one embodiment, the first and second electromagnetic actuators are configured as respective tilt armature valves.

[0022] In an advantageous embodiment, the first and second electromagnetic actuators are configured as respective solenoid valves for a pressure regulation module of the vehicle.

[0023] It is particularly advantageous if the actuator assembly according to the invention further comprises, in addition to the first and second actuators, at least one third electromagnetic actuator, which comprises a third coil assembly with at least one third coil core and a third coil arranged over the entire circumference of the third coil core, and a movable magnetic third armature body as a movable actuator element, which has a third damping device arranged on the third armature body and is movable from a first position to a second position by the magnetic field generated by the third coil assembly, in which the third armature body is attracted towards the third surface and abuts against at least the third surface by the third damping device. In this case, the third surface is also formed with the same structure as the first and second surfaces. This allows the use of at least partly common coil designs for the at least three actuators.

[0024] According to an embodiment, such an electromagnetic actuator assembly is configured for a pressure regulating module of a vehicle brake system, the second electromagnetic actuator being configured as an inlet valve, the third electromagnetic actuator being configured as an outlet valve and the first electromagnetic actuator being configured as a back-up valve. According to an embodiment, the electromagnetic actuator assembly further comprises a control device connectable to the first to third electromagnetic actuators for controlling and energizing and de-energizing them respectively, the control device being configured such that the first electromagnetic actuator is energized at the start of braking the vehicle and de-energized at the end of braking the vehicle, the second and third electromagnetic actuators being energized and de-energized multiple times, respectively, for pressure changes during braking between the start and end of braking the vehicle. The actuators configured to suit the respective ranges of use allow a relatively high efficiency of the actuator assembly, even when different functional demands are imposed on the individual electromagnetic actuators, and the number of components can nevertheless be kept low, for example at least in part by a common coil design.

[0025] The embodiments described herein may be used simultaneously or in any combination with each other.

[0026] The present invention will now be described in detail with reference to the drawings. [Brief description of the drawings]

[0027] [Figure 1] 1 is a schematic diagram of a vehicle brake system including a pressure regulation module and an actuator assembly according to one embodiment of the present invention. [Diagram 2] 1 is a schematic cross-sectional view of a plurality of exemplary electromagnetic actuators in the form of respective tilting armature valves that may be used in an actuator assembly according to one embodiment of the present invention; FIG. [Diagram 3] 3A-3C are schematic diagrams of the armature body of each of the electromagnetic actuators shown in FIG. 2 according to each embodiment of the present invention.

[0028] The designation of individual elements as "first," "second," or "third" elements in this disclosure serves to uniquely identify each element without a specific reference number and characterizes it as belonging to a given actuator, and should be understood as merely a distinguishing designation, and not as a sense of the numbering, enumeration, or number of elements. That is, an element may be referred to as, for example, a "second" element, even if there is not necessarily a corresponding "first" element of the same function or structure.

[0029] In the following description, the same reference numbers are used for the same elements or for elements that act similarly.

[0030] 1 shows a schematic diagram of a vehicle brake system 104 of a vehicle 100. The vehicle brake system 104 comprises a pressure regulation module 102 according to an embodiment of the invention. The pressure regulation module 102 includes an actuator assembly 101 according to an embodiment of the invention, which comprises, inter alia, a number of solenoid valves. The illustrated form of the pressure regulation module 102 is the preferred embodiment. However, the actuator assembly 101 according to the invention can in principle also be used with advantage in other configurations.

[0031] In the illustrated embodiment of Fig. 1, the vehicle 100 is, for example, a commercial vehicle, for example a truck or a bus for transporting people. The pressure regulating module 102 is part of an electronic vehicle brake system 104. The vehicle brake system 104 comprises at least one brake cylinder 2 and a pressure regulating module 102 assigned to the brake cylinder 2. The pressure regulating module 102 comprises a respective electromagnetic actuator as an inlet solenoid valve EV, an outlet solenoid valve AV and a backup valve BV. The inlet solenoid valve EV, the outlet solenoid valve AV and the backup valve BV thus together form an embodiment of an actuator assembly 101 according to the invention as an embodiment of the respective electromagnetic actuator.

[0032] The inlet solenoid valve EV is connected to the reservoir air container 1. By operating the inlet solenoid valve EV or the outlet solenoid valve AV, a pre-set pressure is adjusted by an electronic brake control (schematically shown in the form of a control device SG) during braking of the vehicle 100. Furthermore, the backup solenoid valve BV is connected via a backup line to a conventional backup system 4 (also called backup circuit), to which pressure is applied during braking, for example via a pneumatic foot brake valve. The backup system 4 serves to allow braking of the vehicle 100 in the event of failure of the electrical pressure adjustment. For this purpose, the inlet solenoid valve EV and the outlet solenoid valve AV are closed in the de-energized state (i.e. the respective valve elements closed in the de-energized state; often called "normally closed" or "NC"), and the backup solenoid valve BV is open in the de-energized state (i.e. the valve element open in the de-energized state; often called "normally open" or "NO").

[0033] An electronic control device SG (e.g. in the form of or comprising one or more microprocessors) is provided, for example in an ECU (Electronic Control Unit) of the vehicle 100, and is wired or wirelessly connectable to the solenoid valves EV, AV, BV for controlling and energizing and de-energizing them respectively. The control device SG is arranged such that the solenoid valve BV is energized at the start of braking of the vehicle 100 and de-energized at the end of braking of the vehicle 100. In response to this, the solenoid valves EV, AV are energized and de-energized multiple times, respectively, during braking between the start and end of braking of the vehicle 100, for pressure changes controlled by the control device SG.

[0034] Thereby, an inlet solenoid valve EV is provided for inflation and an outlet solenoid valve AV is provided for bleed. According to an embodiment, the pressure is measured by the electronic control device SG via a pressure sensor and, corresponding to a setpoint, the pressure is increased via the inlet solenoid valve EV and decreased via the outlet solenoid valve AV. Both solenoid valves EV, AV are frequently switched by pressure changes and therefore frequently energized and de-energized. The switching generates structure-borne noise when the armature body impacts on the respective coil core. In order to reduce this noise, it is advantageous if both solenoid valves are damped via a damping device (for example in the form of a rubber abutment surface).

[0035] In contrast, the backup solenoid valve BV is energized at the start of braking and de-energized at the end of braking. As a result, since this solenoid valve switches only once during the braking operation, the present invention recognizes that the structure-borne noise is usually not too disturbing and that since rubber damping is not required, it is possible to increase the magnetic force with the same excitation by reducing the air gap between the armature body and the coil core.

[0036] Advantageous embodiments of actuators that can be used as inlet solenoid valves EV or outlet solenoid valves AV and backup solenoid valves BV are shown in Figures 2 and 3. Figure 2 shows schematic cross-sectional views of exemplary solenoid valves EV, AV, BV in the form of tilting armature valves that can be used in an actuator assembly according to an embodiment of the invention, configured as NC or NO solenoid valves. In this case, solenoid valves EV and AV are formed with the same structure as each other and are shown in cross-sectional views of two common cross-sections along section lines AA and CC. Solenoid valve BV is shown only in cross-section along section line AA (see the plan view of solenoid valves EV, AV, BV shown in the lower part of Figure 2, which is the same for all three solenoid valves).

[0037] Fig. 3 shows a schematic plan view of the armature bodies 208, 308 of the solenoid valves EV, AV, BV shown in Fig. 2 according to the respective embodiments of the present invention. Also shown in Fig. 3 are plan views of the surfaces 205, 305 of the coil formers 203, 303 of the solenoid valves EV, AV, BV shown in Fig. 2 (as viewed from below when the armature bodies 208, 308 are not assembled).

[0038] Firstly, the functional form of a solenoid valve in the form of a tilting armature valve is explained in detail in this specification on the basis of the solenoid valves EV, AV. In this connection, it should be noted that the basic functional form of such solenoid actuators, such as valve devices with an armature body as a valve element movable by a magnetic field, is known to the person skilled in the art. In principle, the solenoid actuator assembly according to the invention can also be used for solenoid valves, but also for electrical switching devices, for example electrical relays. Preferably, the solenoid actuator assembly according to the invention with a solenoid valve, preferably a tilting armature valve, is used in the brake system of a vehicle, in particular a commercial vehicle.

[0039] In this embodiment, the solenoid valves EV and AV are formed with the same structure, and each mainly includes a coil assembly 301 including a cylindrical housing 307 (made of, for example, a magnetic material) in this example, at least one coil core 302, and a coil arranged around the entire circumference of the coil core 302. The coil includes a coil former 303 (made of, for example, plastic) and a coil winding 304 that generates a magnetic field by the coil core 302.

[0040] 2 shows a cross-sectional view of the solenoid valve EV, AV. In this solenoid valve EV, AV, the armature body (or armature for short) 308 is located in the second position 149, in which the armature 308 is attracted by the magnetic field generated by the coil assembly 301. The opposite end of one of the ends of the armature 308 is supported by a support assembly 306. This support assembly 306 may be formed in different forms, as described in different forms in the publication mentioned at the beginning. In this embodiment, the support assembly 306 has, for example, a substantially semi-cylindrical support protrusion 316 on the coil former 303 and a corresponding recess 317 on the armature body 308. However, other forms of support are also possible, with or without additional spring elements. In this embodiment, the armature body 308 is pressed in the direction of the coil former 303 at the support, for example by a coil spring.

[0041] The armature 308 is thus movable between a first position (not shown) in which the armature 308 is disengaged from the coil former 303 and a second attracted position 149 as shown. When the coil winding 304 is energized, the armature 308 may be moved to the second position 149 and held in this second position 149. A sealing element 311 is arranged on the face of the armature 308 facing away from the coil former 303. Via this sealing element 311, as known, a fluid flow can be permitted or interrupted in the form of a switching valve. When the armature 308 is arranged in the disengaged position (closed in a non-energized state; NC), the outlet of the solenoid valve can be closed in a fluid-tight manner by the sealing element 311. However, the respective valve function of the sealing element 311 may also be formed in a different manner.

[0042] In addition to the sealing element 311, at least one damping device in the form of one or, as in the illustrated configuration, several damping bodies 309 is arranged on the armature 308. The sealing element 311 is arranged on the side of the armature 308 facing away from the coil former 303. Furthermore, one or more damping bodies 309 are arranged on the side of the armature 308 facing the coil former 303. In the illustrated embodiment, the sealing element 311 and the one or more damping bodies 309 are formed in one piece. However, the sealing element 311 and the one or more damping bodies 309 may also be formed separately from one another and attached to the armature 308. In one embodiment, both the sealing element 311 and the one or more damping bodies 309 are made of an elastomer, for example rubber. The coil core 302, the housing 307 and the armature 308 comprise a magnetically conductive material. When the armature 308 is positioned in the second position 149, the fluid outlet 312 is open and the solenoid valves EV and AV are switched to pass or allow flow.

[0043] When the armature 308 is attracted towards the surface 305 (and thus towards the face of the coil former 303 which lies opposite the armature 308), the armature 308 is moved to the second position 149. In this second position 149, the armature 308 abuts against the surface 305 by the damping device 309. That is to say, in the second position 149, the damping device 309 is arranged between the armature 308 and the surface 305. The damping material of the one or more damping bodies 309 is preferably provided such that, upon abutment movement of the armature 308 towards the coil former 303, it is elastically deformed by compression of the bulges on abutment against the surface 305 of the coil former 303, so that impacts are spring-elastically damped. The damping device in the form of the one or more damping bodies 309 thus serves as an elastically deformable stop for the armature 308, which in the illustrated configuration is in the form of a plate-like armature. This makes it possible to suppress or prevent vibrations of the plate-like armature as well as annoying noise emissions, in particular structure-borne noise, which may occur, for example, due to impacts or rocking or on rapid movement of the plate-like armature into the open position.Other geometries of the damping device or body and / or materials other than rubber may also be used.

[0044] 1, the inlet solenoid valve EV and the outlet solenoid valve AV are configured to be frequently switched during braking operation. On the other hand, the solenoid valve BV is certainly configured according to a similar solenoid armature principle, but unlike the solenoid valves EV and AV, it is configured as a solenoid valve that is open in the de-energized state and does not have a damping device.

[0045] 2 also shows a cross-sectional view of the solenoid valve BV. In this solenoid valve BV, the armature 208 is also in the second position 149 where the armature 208 is attracted by the magnetic field generated by the coil assembly 201. The opposite end of one end face of the armature 208 is supported by the support assembly 206. Although the support assembly 206 may be formed in a different form from the support assembly 306, it is advantageous to form the support assembly 206 in the same structure as the support assemblies of the solenoid valves EV and AV, which allows the use of the same coil design and reduces the number of different components or parts. Correspondingly, the support assembly 206 has a support protrusion 216 corresponding to the support protrusion 316 provided on the coil winding former 203 and a recess 217 corresponding to the recess 317 provided on the armature 208.

[0046] The armature 208 is also movable between a first position (not shown) in which the armature 208 is displaced from the coil former 203, and an attracted second position 149 as shown. When the coil winding 204 is energized, the armature 208 may be moved to and held in the second position 149. When the armature 208 is located in the displaced position (de-energized and open; NO), the outlet of the solenoid valve is open. Unlike the solenoid valves EV and AV, the armature 208 is attracted towards a surface 205 of the coil former 203 located opposite the armature 208, but does not necessarily abut against this surface 205. Indeed, the armature 208 is attracted toward the surface 205, but it directly contacts the coil core 202, and therefore contacts the contact surface 212 of the coil core 202, which is different from the surface 205 of the coil bobbin 203. This has the advantage that there is substantially no air gap between the coil core 202 and the armature 208 for the magnetic flux. This can reduce the magnetic resistance between the coil core 202 and the armature 208, and can increase the efficiency of the solenoid valve. This causes the armature body 208 of the electromagnetic actuator BV to abut against the surface of the coil core 202.

[0047] However, according to an embodiment, the surface 205 of the solenoid valve BV advantageously has at least one further abutment contour 210, which is configured so that the armature 208 comes into contact with it at the second position 149 during abutment, at least over its useful life. The abutment contour 210 is formed, for example, on the coil former 203. The abutment contour 210 is formed, for example, as a protrusion, preferably from a plastic material. The protrusion is positioned so as to be effective in the event of gradual wear of the contact surface 212 of the coil core 202 (which is made, for example, from steel, like the armature 208), which is caused by frequent direct abutment of the armature 208. In other words, the protrusion 210 is recessed compared to the contact surface 212 when the armature 208 is in the second position 149, so that the armature 208 only abuts against the contact surface 212 of the coil core 202, so that, as it were, steel strikes steel. If the contact surface 212 is increasingly worn away or plastically deformed by frequent abutments and the resulting wear, the contact surface 212 and the protrusion 210 are aligned in the plane of the armature surface in the second position 149, so that the armature 208 subsequently abuts against the protrusion 210 over its useful life. This advantageously makes it possible to avoid further wear of the coil core contact surface 212, but the armature 208 continues to be in direct contact with the coil core 202. As a result, first the armature 208 comes into contact with the coil core 202, and after deformation of the coil core 202 and / or the armature 208, the abutment contour portion 210 for the stopper of the armature 208 provided on the coil winding form 203 becomes effective.

[0048] Fig. 3 shows in detail that the surface 205, here of the coil former 203, and the surface 305, here of the coil former 303, both of which are located opposite the respective armatures 208, 308, are formed with the same structure as each other. This can also be seen in the cross-sectional image AA in Fig. 2. Thus, the surface 305 of the solenoid valves EV, AV also has, for example, a protrusion 310 (shaped the same as the abutment contour or protrusion 210). However, in this case, this protrusion 310 does not have the above-mentioned function. In this context, "the same structure" means in particular that the surfaces have the same three-dimensional surface structure and the same three-dimensional surface shape.

[0049] In particular, "same structure" means that the respective surfaces of the same structure are structurally identical to one another, whereby these surfaces have a three-dimensional surface structure and surface shape of the same design. In this case, possible manufacturing errors are not important. In other words, the surfaces of the same structure certainly have the same design structurally and shape-wise, but do not necessarily have to be identical in terms of their three-dimensional shape and / or structure, since in real production, for example, manufacturing errors or other very slight deviations may often occur between different production batches of components or components of the same design.

[0050] The surfaces 205, 305 are preferably formed on each coil former. The surfaces 205, 305 in particular constitute the surfaces facing the respective armature, with only an air gap between the armature and the surfaces (at least in the armature 308, in the area where the damping element 309 is not present). For completeness, Figure 3 also shows the respective gates 213, 313 that may be used during the manufacture of each coil former.

[0051] According to one embodiment, the surface 205 is formed on a first component of the solenoid valve BV, for example the coil former 203, and the surface 305 is formed on a second component of the solenoid valves EV, AV, for example the corresponding coil former 303. Advantageously, the first and second components are formed with the same structure. This makes it possible to reduce the number of differently configured components for each solenoid valve. This makes it possible to reduce the manufacturing costs.

[0052] According to an embodiment, the components having the same structure are specific or each of the coil assemblies. In other words, the first component is at least one of the coil assembly 201, and the second component is at least one of the coil assembly 301. For example, the first component is one of the coil assembly 201 (e.g., the coils 203, 204 and / or the coil core 202) or the entire coil assembly 201, and the second component is, correspondingly, one of the coil assembly 301 or the entire coil assembly 301. For example, coil assemblies 201, 301 having the same structure of the coil cores 202, 302, the coil formers 203, 303, and the coil windings 204, 304 are used. The coil assemblies having the same structure may have fewer or more of the same components or components. For example, the coil assemblies having the same structure are assembled to the respective solenoid valves as pre-assembled modules. This allows the use of at least partially the same structural design for each coil assembly 201, 301. The same coil design for the three solenoid valves allows for an increased number and a reduced number of components. This increased number of coil assemblies further reduces manufacturing costs.

[0053] In particular, "same structure" means in the context of the present invention that each component part or element of the same structure is structurally configured identically to each other (whereby these components or elements have the same three-dimensional shape and structure as each other). In this case, possible manufacturing errors are not important. In other words, components or elements of the same structure certainly have the same design as each other structurally and in terms of shape, but do not necessarily have to be identical in terms of their three-dimensional shape and / or structure. This is because in actual production, for example, manufacturing errors or other slight deviations may often occur between different production lots of components or elements of the same design. For example, components or elements of the same structure exist as pre-assembled modules or elements (or components) of the same design.

[0054] The advantage of the present invention is that one common coil assembly design (or coil design for short) can be used for the NC solenoid valves EV, AV and the NO solenoid valve BV. The armature abutment surface is formed in different forms for each coil assembly. For the solenoid valves EV, AV, it is at surface 305, i.e. the armature abuts against the plastic surface of the coil bobbin via a rubber damper, or for the solenoid valve BV, it is at the coil core 202 (contact surface 212), i.e. the armature abuts directly against the coil core.

[0055] Different configurations of the armature allow different abutment surfaces to be used in one coil design. In the solenoid valve BV, it is advantageous if the armature abuts directly on the coil core. When the armature is energized, no or only a very small air gap is created due to the direct contact with the armature. This small air gap is advantageous, since the solenoid valve is energized for the entire braking time and it is required to reduce the holding current after suction in order to limit the heating. A small air gap allows the holding current to be reduced sufficiently, so that the heating is reduced to a minimum. For other applications, the solenoid valve BV can optionally be formed as a 3 / 2-position solenoid valve, in particular in which two valve seats are present. For example, another port can be connected to the bore 214, thus enabling the function of a 3 / 2-position solenoid valve.

[0056] In solenoid valves EV, AV, it is advantageous if the abutment is suppressed via a damping device in order to reduce structure-borne noise, which has negative consequences in the vehicle's interior. In this specification, to obtain effective damping, energy is introduced from the armature via a damping device into the coil assembly. The damping body design must be selected in such a way that the armature does not abut against the coil core with negative acceleration, otherwise structure-borne noise would increase significantly.

[0057] The same coil design for the three solenoid valves allows for an increased number and a reduced number of components. This increased number of coil assemblies further reduces the manufacturing costs. At the same time, the invention allows for a relatively high overall efficiency of the solenoid valve assembly, even when the functional requirements imposed on the individual solenoid valves and on solenoid valves of different construction types, such as NC solenoid valves or NO solenoid valves, are different, because damping elements are omitted where they are not needed, which in turn increases the efficiency. [Explanation of symbols]

[0058] EV inlet solenoid valve AV Outlet Solenoid Valve BV Backup Valve SG control device 1 Reservoir container 2 Brake cylinder 4. Backup system / backup circuit 100 vehicles 101 Actuator Assembly 102 Pressure Regulating Module 104 Vehicle Brake System 149 2nd position 201,301 Coil Assembly 202,302 Coil core 203,303 Coil winding frame 204,304 Coil winding 205,305 surface 206,306 Support Assembly 207,307 Housing 208,308 Armature body 210,310 Contact contour / protrusion 212 Contact surface 213,313 Gates 214 holes 216,316 Support protrusion 217,317 Recess 309 Damping Device 311 Sealing elements 312 Fluid outlet

Claims

1. An electromagnetic actuator assembly (101), at least one first electromagnetic actuator (BV), comprising a first coil assembly (201) having at least one first coil core (202) and first coils (203, 204) arranged around the entire circumference of the first coil core (202), and a movable magnetic first armature body (208) as a movable actuator element, the first armature body (208) being movable from a first position to a second position (149) by a magnetic field generated by the first coil assembly (201), in which the first armature body (208) is attracted in the direction of a first surface (205) arranged opposite the first armature body (208) and in contact with the first coil core (202); At least one second electromagnetic actuator (EV, AV) comprises a second coil assembly (301) having at least one second coil core (302) and a second coil (303, 304) arranged around the entire circumference of the second coil core (302), and a movable magnetic second armature body (308) as a movable actuator element, the second armature body (308) being movable by a magnetic force acting on the second armature body (308). a second electromagnetic actuator (EV, AV) having a second damping device (309) mounted on a second coil assembly (308) and movable from a first position to a second position (149) by a magnetic field generated by the second coil assembly (301), wherein at the second position (149), the second armature body (308) is attracted toward a second surface (305) and abuts against the second surface (305) by the second damping device (309); Equipped with The first surface (205) and the second surface (305) are formed with the same structure. An electromagnetic actuator assembly (101).

2. 2. The electromagnetic actuator assembly of claim 1, wherein the first surface (205) is formed on a first component (202, 203, 204) of the first electromagnetic actuator (BV), the second surface (305) is formed on a second component (302, 303, 304) of the second electromagnetic actuator (EV, AV), and the first component (202, 203, 204) and the second component (302, 303, 304) are formed with the same structure as each other.

3. 3. The electromagnetic actuator assembly of claim 2, wherein the first component (202, 203, 204) is at least one member of the first coil assembly (201) and the second component (302, 303, 304) is at least one member of the second coil assembly (301).

4. 4. The electromagnetic actuator assembly of claim 2 or 3, wherein the first component (202, 203, 204) comprises the first coil (203, 204) and the second component (302, 303, 304) comprises the second coil (303, 304).

5. 5. The electromagnetic actuator assembly according to claim 2, wherein the first component (202, 203, 204) comprises the first coil core (202) and the second component (302, 303, 304) comprises the second coil core (302).

6. 6. The electromagnetic actuator assembly of claim 1, wherein the first armature body (208) is supported by a first support assembly (206), and the second armature body (308) is supported by a second support assembly (306) formed in the same structure as the first support assembly (206).

7. The electromagnetic actuator assembly according to any one of claims 1 to 6, wherein the first armature body (208) of the first electromagnetic actuator (BV) abuts against a surface of the first coil core (202).

8. 8. The electromagnetic actuator assembly according to claim 7, wherein the first armature body (208) first abuts against the first coil core (202) and, after deformation of the first coil core (202) and / or the first armature body (208), a further abutment contour (210) provided on a coil former (203) of the first coil assembly (201) becomes effective.

9. 9. The electromagnetic actuator assembly of claim 1, wherein the first and second armature bodies (208, 308) are formed as plate armatures.

10. 10. The electromagnetic actuator assembly according to claim 1, wherein the first electromagnetic actuator (BV) is configured as an actuator that is open when no current is applied, in particular as a valve element that is open when no current is applied, and the second electromagnetic actuator (EV, AV) is configured as an actuator that is closed when no current is applied, in particular as a valve element that is closed when no current is applied.

11. 11. The electromagnetic actuator assembly according to claim 1, wherein the first and second electromagnetic actuators (BV, EV, AV) are formed as electromagnetic valve devices, in particular as respective solenoid valves, with the first or second armature body (208, 308) as a respective valve element.

12. 12. An electromagnetic actuator assembly according to any one of claims 1 to 11, wherein the first and second electromagnetic actuators (BV, EV, AV) are formed as respective tilt armature valves.

13. 13. The electromagnetic actuator assembly according to claim 1, wherein the first and second electromagnetic actuators (BV, EV, AV) are formed as respective solenoid valves for a pressure regulation module (102) of a vehicle.

14. The electromagnetic actuator assembly includes at least one third electromagnetic actuator (EV, AV), which includes a third coil assembly (301) having at least one third coil core (302) and a third coil (303, 304) arranged around the entire circumference of the third coil core (302), and a movable magnetic third armature body (308) as a movable actuator element, the third armature body (308) including a third coil (303, 304) disposed on the third armature body (308). a third electromagnetic actuator (EV, AV) having a damping device (309) of a third coil assembly (301) and movable from a first position to a second position (149) by a magnetic field generated by the third coil assembly (301), in which the third armature body (308) is attracted toward a third surface (305) and abuts against at least the third surface (305), preferably a coil former (303) of the third coil assembly (301), by the third damping device (309); The third surface (305) is formed with the same structure as the first and second surfaces (205, 305); 14. An electromagnetic actuator assembly according to any one of claims 1 to 13.

15. 15. The electromagnetic actuator assembly of claim 14, wherein the electromagnetic actuator assembly is configured for a pressure regulation module (102) of a vehicle braking system (104), the second electromagnetic actuator (EV) is configured as an inlet valve, the third electromagnetic actuator (AV) is configured as an outlet valve, and the first electromagnetic actuator (BV) is configured as a backup valve.

16. The electromagnetic actuator assembly includes: a control device (SG) connectable to the first, second and third electromagnetic actuators (BV, EV, AV) for controlling and energizing and de-energizing the actuators respectively; and The control device (SG) is configured such that the first electromagnetic actuator (BV) is energized at the start of braking of the vehicle (100) and is de-energized at the end of the braking of the vehicle (100), and the second electromagnetic actuator (EV) and the third electromagnetic actuator (AV) are each energized and de-energized a number of times due to pressure changes during the braking between the start and end of the braking of the vehicle (100).

16. The electromagnetic actuator assembly of claim 15.

17. 17. An electromagnetic actuator assembly according to claim 1, wherein the first electromagnetic actuator (BV) is configured as a 3-port 2-position solenoid valve.

18. A pressure regulation module (102) for a vehicle brake system (104) comprising an electromagnetic actuator assembly (101) according to any one of claims 1 to 17.

19. A vehicle brake system (104) comprising a pressure regulation module (102) according to claim 18.

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