Electromagnetic device for a brake system for a vehicle, method for operating an electromagnetic device for a brake system for a vehicle and brake system for a vehicle

Description

[0001] The present invention relates to an electromagnetic device for a braking system for a vehicle, to a method for operating an electromagnetic device for a braking system for a vehicle, and to a braking system for a vehicle.

[0002] In highly automated driving, for example, a driver does not need to be permanently seated in the vehicle and available for corrective intervention. Therefore, conventional fallback systems for critical situations cannot be used. If a primary braking system is unavailable, a redundant braking system should take over the driver's role. To achieve redundancy in this regard, in addition to the control units, the actuators and sensors, along with their wiring, can also be designed redundantly.

[0003] US Patent 6,412,613 B1 discloses an electric motor brake with a printed circuit board that includes the necessary wiring to connect a plurality of electromagnetic coils and ground the stators of these coils, each individual coil being rigidly attached to and electrically connected to the annular circuit board. US Patent 2016 / 0265609 A1 discloses a gear brake that uses an electromechanical actuator with two magnetic coils offset in parallel to each other to prevent rotational movement of a rotating component with a plurality of teeth. DE 10 2008 058 865 A1 discloses an attachment for a safety brake, preferably an electromagnetically released spring-applied brake, with a coil carrier in which two magnetic coils are integrated.

[0004] JP 2007 157830 A relates to a control device for an electromagnetic valve, comprising a coil formed in a redundant structure with the same type of coils and a dual system. JP 2014 224571 A discloses a solenoid valve device comprising a solenoid valve with a first coil and a second coil connected in series, and an external circuit for connecting the solenoid valve to a power source.

[0005] Against this background, the object of the present invention is to provide an improved electromagnetic device for a braking system for a vehicle, an improved method for operating an electromagnetic device for a braking system for a vehicle, and an improved braking system for a vehicle.

[0006] This problem is solved by an electromagnetic device for a braking system for a vehicle, by a method for operating an electromagnetic device for a braking system for a vehicle, by a braking system for a vehicle and by a corresponding computer program according to the main claims.

[0007] According to embodiments, electromagnetic actuators and sensors, particularly for a vehicle braking system, can be designed with at least one redundant coil to provide safety-related and, additionally or alternatively, voltage-level-related redundancy. For example, at least two winding arrangements of galvanically isolated electrical conductors can be arranged around a solenoid valve socket or an inductive sensor. Thus, in the case of a solenoid valve, a force for controlling the solenoid valve can be applied to a common armature in a galvanically isolated manner. In the case of a sensor, an analog signal can be available on both winding arrangements for evaluation. Advantageously, according to embodiments, space can be saved, since, for example, solenoid valves and sensors of the braking system do not need to be duplicated.Furthermore, costs can be saved, as only redundant coils are required instead of redundant devices. This increases the operational reliability of the braking system and, additionally or alternatively, expands its operating range across different electrical voltage levels used in the vehicle. Moreover, it prevents ground misalignments, which can be caused by line resistances in supply lines and varying current draws from control units connected to electromagnetic devices, from leading to compensating currents that would otherwise require protection.

[0008] An electromagnetic device for a braking system for a vehicle is presented, wherein the electromagnetic device has the following features: an armature made of a magnetizable material; a socket, wherein the armature is at least partially receptible within the socket; a first winding arrangement with at least one turn of an electrical conductor around the socket and with two first electrical terminals; and a second winding arrangement with at least one turn of an electrical conductor around the socket and with two second electrical terminals, wherein the first winding arrangement and the second winding arrangement are galvanically isolated from each other, wherein inductive coupling can be generated between the first winding arrangement and the armature and between the second winding arrangement and the armature.

[0009] The vehicle can be a commercial vehicle, such as a truck or the like. The electromagnetic device can be based on an electromagnetic operating principle, in particular inductive coupling between a magnetizable material and an electrical conductor carrying an electric current. The magnetizable material can be a ferromagnetic material. The socket can be made of a non-magnetizable or magnetizable material. The number of turns in the first winding arrangement can correspond to the number of turns in the second winding arrangement. Similarly, the dimensions of the electrical conductor in the first winding arrangement can correspond to the dimensions of the electrical conductor in the second winding arrangement. Furthermore, the material of the electrical conductor in the first winding arrangement can correspond to the material of the electrical conductor in the second winding arrangement.A first control unit can be connected to the first electrical terminals of the first winding assembly. A second control unit can be connected to the second electrical terminals of the second winding assembly. Inductive coupling can be generated either between the first winding assembly and the armature, and additionally or alternatively between the second winding assembly and the armature.

[0010] According to one embodiment, the device can be configured as an actuator or a sensor for the braking system. In particular, if the device is configured as an actuator, the armature can be translationally movable relative to the bushing, at least partially or fully contained within the bushing. The actuator can be a solenoid valve of the braking system. The sensor can be a magnetic field sensor or the like. Such an embodiment offers the advantage that both actuators and sensors can be operated with a redundant coil to enable a redundant braking system and, additionally or alternatively, redundant functionality.

[0011] The device can also include a third winding arrangement with at least one turn of an electrical conductor around the socket and with two third electrical connections, and a fourth winding arrangement with at least one turn of an electrical conductor around the socket and with two fourth electrical connections. The third and fourth winding arrangements can be galvanically isolated from each other and from the first and second winding arrangements. Inductive coupling can be generated between the third winding arrangement and the armature, and between the fourth winding arrangement and the armature. Such an embodiment offers the advantage that proper operation of the electromagnetic device can be enabled based on multiple levels of electrical voltage in the vehicle.

[0012] Furthermore, the winding arrangements can be electrically connected in parallel and additionally or alternatively in series. For example, two winding arrangements can be connected in parallel. Of four winding arrangements, for example, two winding arrangements can be connected in series to form two groups of winding arrangements, and these two groups can then be connected in parallel. Such an embodiment offers the advantage that different applications of the electromagnetic device can be configured and enabled in a simple and safe manner.

[0013] Furthermore, at least two terminals of different winding arrangements can be electrically connected. This electrical connection can be established by bonding or another connection technique. Such an embodiment offers the advantage of enabling a reliable, simple, and space-saving series connection of winding arrangements.

[0014] The electrical connections can also be designed to allow individual or joint contact via at least one connector. Thus, a common connector or separate connectors can be used to connect the electrical terminals of all winding arrangements. Such an embodiment offers the advantage that the electromagnetic device can be easily adapted to different operating environments with regard to its external connection.

[0015] Furthermore, a method for operating an electromagnetic device for a braking system for a vehicle is presented, wherein the electromagnetic device is an embodiment of the aforementioned electromagnetic device, and wherein the method comprises the following step: Applying an electrical actuation signal to electrical terminals of at least one of the winding arrangements to move the armature translationally relative to the socket, or reading an electrical detection signal from electrical terminals of at least one of the winding arrangements to detect whether a translational relative movement occurs between the armature and the socket or a movement occurs between the device and an object.

[0016] The method, or rather the steps of the method, will be executed using two control units. According to one embodiment, in which the electromagnetic device is configured as an actuator, the method may include an application step. According to another embodiment, in which the electromagnetic device is configured as a sensor, the method may include a reading step. The object may be a component of the vehicle whose movement or position is to be detected. For example, the object may be a flywheel. Flywheel teeth may move past the device, while the armature may remain rigidly in the socket.

[0017] A change in magnetic resistance can result in a change in the magnetic field, which in turn can lead to an induced voltage in the winding arrangements.

[0018] According to one embodiment, in the application step, the actuation signal can be applied to electrical terminals of at least one of the first winding arrangements in a first operating mode of the braking system, and to electrical terminals of at least one of the second winding arrangements in a second operating mode of the braking system. Alternatively, in the reading step, the detection signal can be read from electrical terminals of at least one of the first winding arrangements in a first operating mode of the braking system, and from electrical terminals of at least one of the second winding arrangements in a second operating mode of the braking system. The first operating mode can be a disturbance-free operating mode or an operating mode at a first level of an electrical voltage.The second operating mode can be an operating mode in the event of a fault or an operating mode at a second level of electrical voltage. Such an embodiment offers the advantage of creating redundancy in the braking system in a simple and space-saving manner, taking into account fail-safe operation and, additionally or alternatively, operation with multiple electrical voltages.

[0019] The approach presented here also creates two control units that are trained to carry out, control or implement the steps of a variant of a procedure presented here in appropriate facilities.

[0020] For this purpose, the control units can have at least one processing unit for processing signals or data, at least one storage unit for storing signals or data, at least one interface to a sensor or actuator for reading sensor signals from the sensor or for outputting control signals to the actuator, and / or at least one communication interface for reading or outputting data embedded in a communication protocol. The processing unit can be, for example, a signal processor, a microcontroller, or the like, while the storage unit can be flash memory, EEPROM, or a magnetic storage device.The communication interface can be configured to read or output data wirelessly and / or via wired connections, whereby a communication interface that can read or output wired data can, for example, read this data electrically or optically from or output it into a corresponding data transmission line.

[0021] In this context, a control unit can be understood as an electrical device that processes sensor signals and outputs control and / or data signals accordingly. The control unit can have an interface, which can be implemented in hardware and / or software. In the case of a hardware-based interface, the interfaces can, for example, be part of a so-called system ASIC, which incorporates various functions of the control unit. However, it is also possible that the interfaces are separate integrated circuits or at least partially comprised of discrete components. In the case of a software-based interface, the interfaces can be software modules, which, for example, are located on a microcontroller alongside other software modules.

[0022] Furthermore, a braking system for a vehicle according to claim 9 is presented, wherein the braking system has the following features: at least one embodiment of the aforementioned electromagnetic device; and two control units that are electrically connected to winding arrangements of the at least one electromagnetic device. Therefore, redundant operation of the braking system is enabled with regard to fail-safe operation and additionally or alternatively with regard to multiple voltage levels.

[0023] Also advantageous is a computer program product or computer program with program code that can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory and is used to carry out, implement and / or control the steps of the method according to one of the embodiments described above, in particular if the program product or program is executed on a computer or device.

[0024] Examples of the approach presented here are explained in more detail in the following description with reference to the figures. These show: Fig. 1 a schematic representation of a vehicle with a braking system according to an exemplary embodiment; Fig. 2 a schematic representation of an electromagnetic device according to an exemplary embodiment; Fig. 3 a schematic representation of an electromagnetic device according to an exemplary embodiment; and Fig. 4 a flowchart of a procedure for operation according to an exemplary embodiment.

[0025] Fig. 1 Figure 1 shows a schematic representation of a vehicle 100 with a braking system 110 according to an exemplary embodiment. The vehicle 100 is a motor vehicle, for example a commercial vehicle, in particular a truck or the like. The vehicle 100 has the braking system 110. The braking system 110 is shown in the illustration. Fig. 1 According to the invention, an electromagnetic device 120 and two control units 130 are shown. According to a non-inventive embodiment, the braking system 110 can comprise a different combination of the number of electromagnetic devices 120 and control units 130.

[0026] Each of the control units 130 is electrically connected to the electromagnetic device 120 by means of electrical conductors. The electromagnetic device 120 will be explained in more detail with reference to the following figures. It should merely be noted here that the electromagnetic device 120 has at least two galvanically isolated electrical coils or winding arrangements. A first of the control units 130 is electrically connected to a first winding arrangement of the electromagnetic device 120. A second of the control units 130 is electrically connected to a second winding arrangement of the electromagnetic device 120.

[0027] According to the in Fig. 1 In the illustrated embodiment, each of the control units 130 is electrically connected to the electromagnetic device 120 or to one of the winding arrangements of the electromagnetic device 120 via its own connector 140.

[0028] According to one embodiment, the first of the control units 130 is configured to control normal operation of the brake system 110 and / or the electromagnetic device 120. The second of the control units 130 is configured to control an auxiliary operation of the brake system 110 and / or the electromagnetic device 120, intended for redundancy. According to another embodiment, the first of the control units 130 is configured to control the electromagnetic device 120 using electrical signals with a first voltage level. The second of the control units 130 is configured to control the electromagnetic device 120 using electrical signals with a second voltage level. The voltage levels differ from each other.

[0029] According to one embodiment, the electromagnetic device 120 is configured as an actuator, for example, as a solenoid valve. In this configuration, electrical actuation signals can be transmitted between the electromagnetic device 120 and at least one of the control units 130. According to another embodiment, the electromagnetic device 120 is configured as a sensor. In this configuration, electrical detection signals can be transmitted between the electromagnetic device 120 and at least one of the control units 130.

[0030] Fig. 2 Figure 1 shows a schematic representation of an electromagnetic device 120 according to an exemplary embodiment. The electromagnetic device 120 corresponds to or is similar to the electromagnetic device from Figure 1. Fig. 1 The electromagnetic device 120 comprises an armature 221, a socket 222, electrically conductive wire 223, a first winding arrangement 224 with two first electrical terminals 225 and 226, and a second winding arrangement 227 with two second electrical terminals 228 and 229.

[0031] The armature 221 is formed from a magnetizable material. More precisely, the armature 221 is formed from, for example, a ferromagnetic material. The armature 221 has an elongated shape, for example, a cylindrical shape. The armature 221 is arranged to be at least partially enclosed within the bushing 222. In other words, the bushing 222 is formed to enclose at least a portion of the armature 221. The armature 221 is arranged to be rigidly or translationally movable relative to the bushing 222. The bushing 222 is formed from, for example, a non-magnetizable material.

[0032] The first winding arrangement 224 has at least one turn, typically a plurality of turns, of an electrical conductor formed from the electrically conductive wire 223 around the socket 222. Furthermore, the first winding arrangement 224 has a first electrical input terminal 225 and a first electrical output terminal 226. The first electrical terminals 225 and 226 represent the ends of the electrical conductor and the electrically conductive wire 223 used for the electrical conductor of the first winding arrangement 224, respectively. The second winding arrangement 227 has at least one turn, typically a plurality of turns, of an electrical conductor formed from the electrically conductive wire 223 around the socket 222. In addition, the second winding arrangement 227 has a second electrical input terminal 228 and a second electrical output terminal 229.The second electrical connections 228 and 229 represent the ends of the electrical conductor and the electrically conductive wire 223 used for the electrical conductor of the second winding arrangement 227, respectively.

[0033] A first electric current I1 can flow in the electrical conductor of the first winding arrangement 224. A first electric voltage U1 can be applied or dropped between the first electric input terminal 225 and the first electric output terminal 226. A second electric current I2 can flow in the electric conductor of the second winding arrangement 227. A second electric voltage U2 can be applied or dropped between the second electric input terminal 228 and the second electric output terminal 229.

[0034] The first winding assembly 224 and the second winding assembly 227 are arranged around the socket 222. The first winding assembly 224 represents a first electrical coil, and the second winding assembly 227 represents a second electrical coil. The first winding assembly 224 and the second winding assembly 227 are galvanically isolated from each other. The first winding assembly 224 and the second winding assembly 227 are electrically connected in parallel with each other. Thus, inductive coupling can be generated between the first winding assembly 224 and the armature 221. If, for example, a translational relative movement occurs between the armature 221 and the socket 222 with the first winding assembly 224, or if an object moves relative to the device 120, the first electric current I1 flows in the electrical conductor of the first winding assembly 224.An inductive coupling can be generated between the second winding arrangement 227 and the armature 221. For example, if a translational relative movement occurs between the armature 221 and the socket 222 with the second winding arrangement 227, or if an object moves relative to the device 120, the second electric current I 2 flows in the electrical conductor of the second winding arrangement 227.

[0035] Here, the first electrical input terminal 225 and the first electrical output terminal 226, as well as the second electrical input terminal 228 and the second electrical output terminal 229, can be electrically connected via individual or separate connectors or via a common connector. This allows, for example, an electrical connection between the winding arrangements 224 and 227 and at least one control unit of the brake system.

[0036] Fig. 3 Figure 1 shows a schematic representation of an electromagnetic device 120 according to an exemplary embodiment. The electromagnetic device 120 corresponds here to the electromagnetic device from Figure 1. Fig. 2 with the exception that an additional third winding arrangement 324 and a fourth winding arrangement 327 are provided and the interconnection of the winding arrangements 224, 227, 324 and 327 is modified.

[0037] The third winding arrangement 324 has at least one turn, typically a plurality of turns, of an electrical conductor formed from the electrically conductive wire 223 around the socket 222. Furthermore, the third winding arrangement 324 has a third electrical input terminal 325 and a third electrical output terminal 326. The third electrical terminals 325 and 326 represent the ends of the electrical conductor and the electrically conductive wire 223 used for the electrical conductor of the third winding arrangement 324, respectively. The fourth winding arrangement 327 has at least one turn, typically a plurality of turns, of an electrical conductor formed from the electrically conductive wire 223 around the socket 222. In addition, the fourth winding arrangement 327 has a fourth electrical input terminal 328 and a fourth electrical output terminal 329.The fourth electrical terminals 328 and 329 represent the ends of the electrical conductor and the electrically conductive wire 223 used for the electrical conductor of the fourth winding arrangement 327, respectively.

[0038] The third winding arrangement 324 and the fourth winding arrangement 327 are arranged around the socket 222. The third winding arrangement 324 represents a third electrical coil and the fourth winding arrangement 327 represents a fourth electrical coil. The third winding arrangement 324 and the fourth winding arrangement 327 are galvanically isolated from each other.

[0039] According to the in Fig. 3 In the illustrated embodiment, the first winding arrangement 224 and the second winding arrangement 227 are electrically connected in series with each other. The first electrical output terminal 226 can be electrically connected to the second electrical input terminal 228. The third winding arrangement 324 and the fourth winding arrangement 327 are electrically connected in series with each other. The third electrical output terminal 326 can also be electrically connected to the fourth electrical input terminal 328. The first winding arrangement 224 and the second winding arrangement 227 are electrically connected in parallel with the third winding arrangement 324 and the fourth winding arrangement 327.

[0040] Half of a first electric current I1 can be conducted in the electrical conductor of the first winding arrangement 224 and in the electrical conductor of the second winding arrangement 227. A first electric voltage U1 can be applied or dropped between the first electrical input terminal 225 and the first electrical output terminal 226, as well as between the second electrical input terminal 228 and the second electrical output terminal 229. Thus, inductive coupling can be generated between the first winding arrangement 224, the second winding arrangement 227, and the armature 221.For example, if a translational relative movement occurs between the armature 221 and the socket 222 with the first winding arrangement 224 and the second winding arrangement 227, or a movement occurs between an object and the device 120, the first electric current I 1 flows in the electrical conductor of the first winding arrangement 224 and the second winding arrangement 227.

[0041] A second electric current I₂ can be conducted in the electrical conductor of the third winding arrangement 324 and in the electrical conductor of the fourth winding arrangement 327. Between the third electrical input terminal 325 and the third electrical output terminal 326, as well as between the fourth electrical input terminal 328 and the fourth electrical output terminal 329, half of a second electrical voltage U₂ can be applied or dropped. Thus, inductive coupling can be generated between the third winding arrangement 324 and the fourth winding arrangement 327 and the armature 221.For example, if a translational relative movement occurs between the armature 221 and the socket 222 with the third winding arrangement 324 and the fourth winding arrangement 327, or a movement occurs between an object and the device 120, the second electric current I 2 flows in the electrical conductor of the third winding arrangement 324 and the fourth winding arrangement 327.

[0042] In other words, it is possible to use the electromagnetic device 120 according to the one described in Fig. 3 In the illustrated embodiment, it is possible to reconcile different voltage levels in the vehicle with the redundancy concept. For this purpose, for example, four winding arrangements 224, 227, 324, and 327 can be provided. With a suitable design of the winding arrangements 224, 227, 324, and 327, a solenoid valve for operation at 12 volts or 24 volts can be realized, for example, by internally bonding an electrical series or parallel circuit. Voltage level combinations of 24 volts and 48 volts are also conceivable.

[0043] Regarding the winding arrangements 224 and 227 or optionally additionally 324 and 327 of the electromagnetic device 120 made of Fig. 2 or Fig. 3 The following observations can be made.

[0044] The resistances result in: R 1 + R 1 = 2 R 1 = R Serie R 1 ⋅ R 1 R 1 + R 1 = R 1 2 = R Parallel

[0045] The currents are then static: I = U R I U 1 = U 1 R Serie = U 1 2 R 1 I U 1 2 = U 1 2 R Parallel = U 1 2 R 1 2 = U 1 R 1

[0046] For the magnetic field, this means: B = μ 2 πr NI = μ 2 πr N U 1 I U 1 = μ 2 πr N U 1 2 I U 1 2 if N U 1 = 2 N U 1 2

[0047] Since the force is proportional to the magnetic field, it follows that by connecting two identical winding arrangements in series or parallel, the usable voltage can be any voltage and half of it.

[0048] Fig. 4 Figure 400 shows a flowchart of a method 400 for operation according to an exemplary embodiment. Method 400 can be implemented to operate or control the operation of an electromagnetic device for a vehicle's braking system. In this case, the braking system corresponds to or is similar to the braking system described in Figure 400. Fig. 1In a first variant A of method 400 for operation, the electromagnetic device is designed as an actuator of the braking system, for example as a solenoid valve. In a second variant B of method 400 for operation, the electromagnetic device is designed as a sensor of the braking system.

[0049] In the first variant A, the operating method 400 includes a step 410 of applying an electrical actuation signal to electrical terminals of at least one of the winding arrangements in order to move the armature translationally relative to the socket. Optionally, in the first variant A, the operating method 400 also includes a step 405 of receiving a request signal prior to step 410 of applying the signal. The request signal represents a requested actuation of the electromagnetic device, in which a translational movement of the armature relative to the socket occurs. According to one embodiment, in step 410 of applying the signal, the actuation signal is applied to electrical terminals of at least one of the first winding arrangements in a first operating mode of the braking system and to electrical terminals of at least one of the second winding arrangements in a second operating mode of the braking system.Operating mode refers to normal operation or auxiliary operation, or alternatively, operation at a first electrical voltage level or operation at a second electrical voltage level. In the first operating mode, the first control unit can be used to control the electromagnetic device, while in the second operating mode, the second control unit can be used to control the electromagnetic device.

[0050] In the second variant B, the operating method 400 includes a step 420 for reading an electrical detection signal from electrical terminals of at least one of the winding arrangements in order to detect whether a translational relative movement occurs between the armature and the socket or a movement occurs between the device and an object, wherein the armature is rigidly arranged relative to the socket. Optionally, in the second variant B, the operating method 400 includes a step 425 for evaluating the read detection signal after the reading step 420. According to one embodiment, in the reading step 420, the detection signal is read from electrical terminals of at least one of the first winding arrangements in the first operating mode of the braking system and from electrical terminals of at least one of the second winding arrangements in the second operating mode of the braking system.

[0051] Detection of the respective operating mode or of an active control unit is conceivable in both the first variant A and the second variant B, similar to an inductive transformer. REFERENCE MARK LIST

[0052] 100 Vehicle 110 Brake system 120 Electromagnetic device 130 Control unit 140 Plug 221 Armature 222 Socket 223 Electrically conductive wire 224 First winding arrangement 225 First input terminal 226 First output terminal 227 Second winding arrangement 228 Second input terminal 229 Second output terminal I1 First electric current I2 Second electric current U1 First electric voltage U2 Second electric voltage 324 Third winding arrangement 325 Third input terminal 326 Third output terminal 327 Fourth winding arrangement 328 Fourth input terminal 329 Fourth output terminal 400 Operating method 405 Receiving step 410 Applying step 420 Reading step 425 Evaluating step

Claims

1. Electromagnetic device (120) for a brake system (110) for a vehicle (100), wherein the electromagnetic device (120) has the following features: an armature (221) made of a magnetizable material; a bush (222), wherein the armature (221) can be at least partially received inside the bush (222); a first winding arrangement (224) having at least one winding of an electrical conductor (223) around the bush (222) and having two first electrical connections (225, 226); and a second winding arrangement (227) having at least one winding of an electrical conductor (223) around the bush (222) and having two second electrical connections (228, 229), wherein between the first winding arrangement (224) and the armature (221) and between the second winding arrangement (227) and the armature (221) an inductive coupling can be produced, characterized in that the first winding arrangement (224) and the second winding arrangement (227) are galvanically separated from each other, wherein the first winding arrangement (224) and the second winding arrangement (227) are in each case electrically connected to an individual control unit (130).

2. Electromagnetic device (120) according to claim 1, characterized in that the device (120) is in the form of an actuator or a sensor for the brake system (110), and / or wherein the armature (221) can be at least partially received inside the bush (222) so as to be able to be moved in translation relative to the bush (222).

3. Electromagnetic device (120) according to any one of the preceding claims, characterized by a third winding arrangement (324) having at least one winding of an electrical conductor (223) around the bush (222) and having two third electrical connections (325, 326) and by a fourth winding arrangement (327) having at least one winding of an electrical conductor (223) around the bush (222) and having two fourth electrical connections (328, 329), wherein the third winding arrangement (324) and the fourth winding arrangement (327) are galvanically separated from each other and from the first winding arrangement (224) and the second winding arrangement (227), wherein between the third winding arrangement (324) and the armature (221) and between the fourth winding arrangement (327) and the armature (221) an inductive coupling can be produced.

4. Electromagnetic device (120) according to any one of the preceding claims, characterized in that the winding arrangements (224, 227; 324, 327) can be connected or are connected electrically in parallel and / or electrically in series.

5. Electromagnetic device (120) according to any one of the preceding claims, characterized in that at least two connections (225, 226, 228, 229; 325, 326, 328, 329) of different winding arrangements (224, 227; 324, 327) are electrically connected to each other.

6. Electromagnetic device (120) according to any one of the preceding claims, characterized in that the electrical connections (225, 226, 228, 229; 325, 326, 328, 329) are formed to be able to be contacted individually or together by means of at least one plug (140).

7. Method (400) for operating an electromagnetic device (120) for a brake system (110) for a vehicle (100), wherein the electromagnetic device (120) has an electromagnetic device (120) according to any one of the preceding claims, wherein the method (400) has the following step: applying (410) an electrical activation signal to electrical connections (225, 226, 228, 229; 325, 326, 328, 329) of at least one of the winding arrangements (224, 227; 324, 327) in order to move the armature (221) in translation relative to the bush (222), or reading (420) an electrical detection signal of electrical connections (225, 226, 228, 229; 325, 326, 328, 329) of at least one of the winding arrangements (224, 227; 324, 327) in order to detect whether a translational relative movement between the armature (221) and the bush (222) or a movement between the device (120) and an object occurs.

8. Method (400) according to claim 7, characterized in that in the step (410) of application the activation signal in a first operating mode of the brake system (110) is applied to electrical connections (225, 226; 228, 229) at least of a first of the winding arrangements (224; 227) and in a second operating mode of the brake system (110) is applied to electrical connections (228, 229; 325, 326, 328, 329) at least of a second of the winding arrangements (227; 324, 327) or in the step (420) of reading the detection signal in a first operating mode of the brake system (110) is read by electrical connections (225, 226; 228, 229) at least of a first of the winding arrangements (224; 227) and in a second operating mode of the brake system is read by electrical connections (228, 229; 325, 326, 328, 329) at least of a second of the winding arrangements (227; 324, 327).

9. Brake system (110) for a vehicle (100), wherein the brake system (110) has the following features: at least one electromagnetic device (120) according to any one of claims 1 to 6; and two control units (130) which are configured to carry out and / or control the steps of the method (400) according to any one of claims 7 to 8 in corresponding units, wherein the control units (130) are electrically connected to winding arrangements (224, 227; 324, 327) of the at least one electromagnetic device (120).

10. Computer program having program code which is stored on a machine-readable medium or storage medium and which is used to perform, implement and / or control the steps of the method according to either claims 7 to 8 when the program is carried out on a computer or a device.

11. Machine-readable storage medium on which the computer program according to claim 10 is stored.