Control device for monitoring system of motor vehicle, monitoring system for motor vehicle, and method for operating monitoring system
By employing a control device with three computing units in the motor vehicle monitoring system, sufficient redundancy and reliability are achieved in a motor vehicle system that eliminates mechanical connections. This solves the problem of insufficient redundancy design in existing technologies, simplifies signal and power connections, and improves the system's fault tolerance and integration.
Patent Information
- Application Number
- CN202480041906.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-07-06
- Filing Date
- 2024-06-19
- Publication Date
- 2026-01-23
Smart Images
Figure CN121399017A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The invention relates to a control device of the type mentioned in the preamble of claim 1 for a monitoring system for a motor vehicle, to a monitoring system for a motor vehicle of the type mentioned in the preamble of claim 7 and to a method for operating a monitoring system for a motor vehicle. BACKGROUND
[0002] Such control devices for a monitoring system for a motor vehicle, monitoring systems for a motor vehicle and methods for operating a monitoring system have been disclosed in various embodiments in the prior art.
[0003] Known monitoring systems for a motor vehicle for monitoring a function of a motor vehicle are configured in such a way that at least one control device of the monitoring system has at least one computing unit for evaluating an output signal of at least one sensor of the monitoring system and for actuating power electronics of an actuator of the monitoring system by means of a control signal depending on the output signal in order to execute the function of the motor vehicle. SUMMARY
[0004] The invention is based precisely on this.
[0005] The task of the invention is to improve a control device of a monitoring system for a motor vehicle for monitoring a function of a motor vehicle, a monitoring system for a motor vehicle and a method for operating a monitoring system for a motor vehicle.
[0006] This task is achieved by a control device having the features of claim 1, characterized in that the control device has three computing units, the control device is configured and designed in such a way that the output signal of the at least one sensor can be evaluated in all computing units in parallel and the power electronics of the actuator can be actuated by means of a control signal of each computing unit, and the power electronics of the actuator can be actuated by means of a control signal of at least one of the two computing units from the three computing units when at least two control signals corresponding to each other from two computing units of the three computing units coincide. Furthermore, this task is also solved by a monitoring system for a motor vehicle having the features of claim 7 and by a method for operating a monitoring system for a motor vehicle having the features of claim 11. The dependent claims relate to advantageous refinements of the invention.
[0007] The main advantage of the present application is, inter alia, that the control device for a monitoring system for a motor vehicle, the monitoring system for a motor vehicle and the method for operating a monitoring system for a motor vehicle for monitoring a function of a motor vehicle are improved. Based on the configuration of the control device, the monitoring system and the method for operating a monitoring system according to the present application, sufficient redundancy can be achieved, for example, in a simple and thus cost-advantageous manner and method, for so-called by-wire systems and the like. Thus, in such systems and motor vehicles equipped with such systems, it is very important to ensure sufficient redundancy, since such motor vehicles dispense with the mechanical connections that are present in conventional motor vehicles and are essential for a redundant design. This is easily understood, for example, in the steering example of a motor vehicle that employs a steer-by-wire system, in which the known mechanical connection between the steering wheel of the motor vehicle and the wheels of the motor vehicle to be steered is replaced by a so-called steer-by-wire system. The aforementioned mechanical connection is dispensed with. The field of application of the steering of a motor vehicle using a steer-by-wire system is here merely purely exemplary. The present application can also be advantageously applied to other functions of a motor vehicle. For example, only other by-wire systems are mentioned here, which are known under the collective term X-by-wire systems. The basic configuration of such X-by-wire systems is known to the person skilled in the art. According to the present application, it is not necessary to provide, for example, a plurality of control devices in order to achieve the aforementioned redundancy. Instead, only one control device can be used for implementing the respective function of the motor vehicle. Thus, only the number of computing units is tripled, while the number of the remaining components of the control device remains unchanged. In principle, the monitoring system for a motor vehicle according to the present application, together with the control device according to the present application, can be freely selected within suitable limits in terms of type, working principle, material and size. In this regard, reference is made to the various different functions in modern motor vehicles, for example the general description of the challenges faced by the aforementioned by-wire systems. The method for operating a monitoring system for a motor vehicle according to the present application is equally applicable.
[0008] An advantageous refinement of the control device according to the application provides that the control device is constructed and arranged in such a way that a first of the three computing units is functionally connectable to a first power supply of the monitoring system for supplying the actuator with electrical power for operating the actuator, a second of the three computing units is functionally connectable to a second power supply of the monitoring system for supplying the actuator with electrical power for operating the actuator, and a third of the three computing units is functionally connectable to the first power supply and / or to the second power supply for supplying the actuator with electrical power for operating the actuator. Thereby, the operation of the actuator can be realized with the first power supply and / or the second power supply of the monitoring system. For example, the actuator can have a plurality of electrical windings, of which a part is electrically connected to the first power supply and the remaining windings are electrically connected to the second power supply. Accordingly, even if one of the three computing units fails, there is always a two-path supply for the actuator.
[0009] A further advantageous refinement of the control device according to the application provides that the control device has only one signal interface for all three computing units for a sensor signal transmission connection of the three computing units to a sensor of a superordinate motor vehicle bus system of the control device, by means of which bus system and the signal interface an output signal of at least one of the at least one sensor can be transmitted to each computing unit. In this way, the sensor signal transmission connection of the three computing units to a sensor of a superordinate motor vehicle bus system of the control device is significantly simplified. For example, an output signal of at least one sensor for detecting a steering movement of a motor vehicle steering wheel, which is functionally associated with the steering wheel, can be transmitted to the three computing units by means of the bus system.
[0010] In analogy to the above-mentioned advantageous embodiment of the control device according to the application, a further advantageous embodiment of the control device according to the application provides that the control device has only one signal interface for all three computing units for the sensor signal transmission connection of the three computing units to at least one sensor functionally cooperating with the actuator, wherein by means of this signal interface the output signals from the sensor can be transmitted to the computing units. Accordingly, the signal transmission connection of the three computing units to the actuator, i.e. to at least one sensor functionally cooperating with the actuator, is also significantly simplified. For example, in analogy to the aforementioned example, the output signals of at least one inductive sensor and / or at least one magnetic sensor and / or at least one capacitive sensor functionally cooperating with the actuator can be transmitted by means of this signal interface to the three computing units. In the use of sensors based on different physical principles, i.e. by means of the technical diversity of the sensors used for this purpose, the fault tolerance is additionally improved. Furthermore, in order to improve the availability, in analogy to the number of computing units, the number of sensors used for this purpose can be considered to be greater than 1 for each technology used, for example 3 inductive sensors and 3 magnetic sensors.
[0011] A further advantageous embodiment of the control device according to the application provides that the control device has only one control interface for all three computing units for the control signal transmission connection of at least one computing unit of the three computing units to the power electronics of the actuator, wherein by means of this control interface control signals can preferably be transmitted to the power electronics of the actuator such that the actuator can be connected by means of the control signals to at least one power supply of the monitoring system in order to supply the actuator with electrical power for operating the actuator. In analogy to the two aforementioned embodiments of the control device according to the application, the control side of the three computing units towards the actuator is also significantly simplified thereby.
[0012] Accordingly, an advantageous embodiment of the method according to the application provides that the power electronics of the actuator are controlled by means of control signals such that the actuator is connected by means of the control signals to at least one power supply of the monitoring system in order to supply the actuator with electrical power for operating the actuator.
[0013] Furthermore, an advantageous refinement of the control device according to the application provides that the control device is configured as a structural unit, preferably all of the computing units of the control device are configured essentially uniformly with respect to their function from one another. In this way, the control device is designed to be very compact and thus can be operated more easily. The preferred embodiment of this refinement also has the additional advantage that the computing units can be procured, for example, from different manufacturers from one another. Additional variety with respect to the computing units is thereby achieved, with which an improved functional reliability of the control device can be achieved. The reason for this is that, although the computing units essentially correspond with respect to their function, differences between the manufacturers with respect to their construction can exist. Thus, it is extremely unlikely in practice that two computing units from different manufacturers fail due to the same error.
[0014] As already described above, the monitoring system according to the application can be designed freely within suitable boundaries.
[0015] An advantageous refinement of the monitoring system according to the application provides that the control device is configured as only one control device. Thereby, the monitoring system according to the application is significantly simplified, since the required redundancy is not secured by multiple control devices, but only by multiple computing units integrated in the only control device.
[0016] As already described in the introductory part of the description, the application and thus the monitoring system according to the application can very advantageously be applied to motor vehicle steering systems. Accordingly, an advantageous refinement of the monitoring system according to the application provides that the monitoring system is configured as a monitoring system for the steering of at least one wheel of a motor vehicle, wherein the power electronics of the actuator can be operated for the steering movement of the at least one wheel in dependence on an output signal of at least one sensor of the monitoring system, which cooperates functionally with a steering wheel of the motor vehicle, for determining a steering movement of the steering wheel, and in dependence on an output signal of at least one sensor of the monitoring system, which cooperates functionally with an actuator of the monitoring system, for determining a steering position of the wheel, preferably the monitoring system is configured as a steer-by-wire monitoring system only. With the monitoring system according to this refinement, sufficient redundancy is ensured even in motor vehicle steering systems in which, for example, a mechanical connection between the steering wheel on the one hand and the at least one wheel on the other hand no longer exists.
[0017] Accordingly, an advantageous further development of the method according to the application provides that the actuator force-transmissively connected to at least one wheel of the motor vehicle is operated in dependence on an output signal of at least one sensor of the monitoring system functionally cooperating with the steering wheel of the motor vehicle for determining a steering movement of the steering wheel and in dependence on an output signal of at least one sensor of the monitoring system functionally cooperating with the actuator of the monitoring system for determining a steering position of the wheel; preferably, the monitoring system is operated exclusively as a steer-by-wire monitoring system.
[0018] A further advantageous further development of the monitoring system according to the application provides that the control device comprises at least two of the following components of the monitoring system, preferably all of the following components, particularly preferably as one structural unit: the three computing units; a signal interface for the signal transmission connection of the three computing units to the sensors of the bus system superior to the control device; a signal interface for the sensor signal transmission connection of the three computing units to at least one sensor cooperating with the actuator; a control interface for the power electronics transmission connection of the three computing units to the power electronics of the actuator; power electronics for the actuator; a power supply switching device for the controlled connection of at least one of the at least two power supplies of the monitoring system to the actuator by means of the control interface for supplying electrical power to the actuator for operating the actuator; the actuator. In this way, the monitoring system according to the application can achieve a high or even very high structural and circuit integration. BRIEF DESCRIPTION OF DRAWINGS
[0019] The application is explained in detail below with reference to the attached schematic drawings. The only drawing shows:
[0020] Figure 1 A partial method circuit diagram shows one embodiment of the monitoring system according to the application with the control device according to the application for carrying out the method according to the application. DETAILED DESCRIPTION
[0021] In Figure 1 In the following, one embodiment of the monitoring system according to the application is shown purely by way of example, which monitoring system has a control device according to the application for carrying out the method according to the application.
[0022] In this embodiment, a vehicle monitoring system 2 (not shown in detail) is configured to monitor the steering function of a vehicle and includes a control device 4. The control device 4 of the monitoring system 2 has at least one computing unit for evaluating the output signals of at least one sensor 6, 8 of the monitoring system 2, and for controlling the power electronics 9 of the actuator 10 of the monitoring system 2 by means of a control signal based on the output signals, thereby realizing the steering function of the vehicle. According to the invention, the control device 4 includes three computing units 12, 14, 16 for evaluating the output signals of the sensors 6, 8 and for controlling the power electronics 9 of the actuator 10 by means of a control signal based on the output signals. Therefore, the control device 4 is constructed and configured such that the output signals of sensors 6 and 8 can be evaluated in parallel across all computing units 12, 14, and 16, and the power electronics 9 of actuator 10 can be controlled by the control signals of each computing unit 12, 14, and 16. Specifically, when at least two corresponding control signals of two of the three computing units 12, 14, and 16 are consistent, the power electronics 9 of actuator 10 can be controlled by the control signals of at least one of these two computing units 12, 14, and 16. In this embodiment, the power electronics 9 of actuator 10 is controlled by two of the three computing units 12, 14, and 16 under normal operation, as will be further explained below. Figure 1 Of the sensors 6 and 8 shown, the sensors include, on the one hand, three magnetic sensors 6 functionally connected to the actuator 10, and on the other hand, three inductive sensors 8 functionally connected to the actuator 10. Accordingly, fault tolerance is improved on the one hand by the technical diversity of the sensors 6 and 8 already described above, and on the other hand by the aforementioned triple sensing technology of the sensors 6 and 8. In addition, the monitoring system 2 also has at least one steering wheel sensor, also not shown, which functionally cooperates with the steering wheel (not shown) of the motor vehicle.
[0023] Here, the control device 4 is constructed and configured such that the first computing unit 12 of the three computing units 12, 14, and 16 can be functionally connected to the first power supply 18 of the monitoring system 2 to supply electrical power for operating the actuator 10; the second computing unit 14 of the three computing units 12, 14, and 16 can be functionally connected to the second power supply 20 of the monitoring system 2 to supply electrical power for operating the actuator 10; and the third computing unit 16 of the three computing units 12, 14, and 16 can be functionally connected to the first power supply 18 and the second power supply 20 to supply electrical power for operating the actuator 10.
[0024] Furthermore, the control device 4 has only one signal interface 22 for all three computing units 12, 14, 16 for the sensor signal transmission connection of the three computing units 12, 14, 16 to a bus system 24 of the motor vehicle which is superior to the control device 4, wherein the output signals of the at least one not shown sensor can be transmitted by the sensor to the computing units 12, 14, 16 by means of the bus system 24 and the signal interface 22. The at least one sensor mentioned above relates to the above already mentioned not shown steering wheel sensor which detects the steering movement of a likewise not shown steering wheel of the motor vehicle. Like the sensors 6, 8, the at least one steering wheel sensor mentioned above can be implemented technically variously on the one hand and on the other hand alternatively or additionally redundantly.
[0025] Furthermore, the control device 4 has on the one hand only one signal interface 26 for all three computing units 12, 14, 16 for the sensor signal transmission connection of the three computing units 12, 14, 16 to the sensors 6, 8 which are functionally cooperating with the actuator 10, wherein the output signals of the sensors 6, 8 can be transmitted to the computing units 12, 14, 16 by means of the signal interface 26. On the other hand, the control device 4 has only one control interface 28 for all three computing units 12, 14, 16 for the control signal transmission connection of at least one of the three computing units 12, 14, 16 to the power electronics 9 of the actuator 10, wherein control signals can be transmitted to the power electronics 9 of the actuator 10 by means of the control interface 28 in such a way that the actuator 10 can be connected to the two power supplies 18, 20 of the monitoring system 2 by means of the control signals for supplying the actuator 10 with electrical power for operating the actuator 10.
[0026] Furthermore, the monitoring system 2 has here only one control device 4, wherein the control device 4 is constructed as one structural unit in the present embodiment. The computing units 12, 14, 16 of the control device 4 are furthermore constructed essentially identically to one another in terms of function.
[0027] As already described above, the monitoring system 2 is configured as a monitoring system for the steering of at least one wheel 30 of a motor vehicle, wherein the actuator 10 is operable for a steering movement of the at least one wheel 30 in accordance with an output signal of at least one sensor of the monitoring system 2, which is functionally cooperative with a not shown steering wheel of the motor vehicle for determining a steering movement of the steering wheel, and in accordance with output signals of sensors 6, 8 of the monitoring system 2, which are functionally cooperative with the actuator 10 of the monitoring system 2 for determining a steering position of the wheel 30. In a not shown motor vehicle, the monitoring system 2 is configured as a purely steer-by-wire monitoring system. As already explained in the introductory part of the description, the steering system in a motor vehicle with steer-by-wire does not have a mechanical connection between the steering wheel of the motor vehicle on the one hand and the at least one wheel of the motor vehicle, which can be steered by means of a steering movement of the steering wheel, on the other hand. Therefore, in addition to the monitoring system 2 described above and configured as a steer-by-wire monitoring system, there is no mechanically parallel connection between the steering wheel and the at least one wheel 30.
[0028] In order to additionally increase the degree of integration of the monitoring system 2, all of the following components of the monitoring system 2 are integrated in the control device 4 of the monitoring system 2 as a single structural unit: the three computing units 12, 14, 16; the signal interface 22 for the sensor signal transmission connection of the three computing units 12, 14, 16 to the bus system 24; the signal interface 26 for the sensor signal transmission connection of the three computing units 12, 14, 16 to the sensors 6, 8, which are functionally cooperative with the actuator 10; the control interface 28 for the control signal transmission connection of the three computing units 12, 14, 16 to the power electronics 9 of the actuator 10; the power electronics 9 for the actuator 10; the power supply switching device 32 for controlling the connection of at least one of the two power supplies 18, 20 of the monitoring system 2 to the actuator 10 by means of the control interface 28 for supplying the actuator 10 with electrical power for operating the actuator 10; and the actuator 10. Figure 1 The system boundary of the control device 4 is shown in bold solid lines in Fig.
[0029] The working method of the monitoring system according to the application with a control device according to the application and the method according to the application will be explained in the following with reference to the present embodiment. Figure 1 The working method of the monitoring system according to the application with a control device according to the application and the method according to the application will be explained in the following with reference to the present embodiment.
[0030] If the steering wheel (not shown) of the motor vehicle is turned manually, for example, this steering movement of the steering wheel is detected in a known manner and method by means of at least one sensor functionally connected to the steering wheel (i.e., at least one steering wheel sensor (not shown)) and transmitted as an output signal of the at least one sensor to the control unit 4 of the monitoring system 2 via the bus system 24. These output signals are provided in parallel to all three computing units 12, 14, and 16 via the signal interface 22 of the control unit 4 for evaluation. In order to compliantly operate the power electronics 9 of the actuator 10 of the control unit 4, it is additionally necessary to know the current steering position of the at least one wheel 30 of the motor vehicle. This current steering position is detected in a manner and method known to those skilled in the art by means of sensors 6 and 8 of the control unit 4 that are functionally cooperative with the actuator 10, and is transmitted in parallel to the three computing units 12, 14, and 16 via the signal interface 26 of the control unit 2, similarly to the aforementioned output signals, in the form of output signals from sensors 6 and 8, for evaluation. After all output signals are evaluated in parallel across all three computing units 12, 14, and 16, each of these units generates a control signal associated with those output signals, which the power electronics 9 of actuator 10 can use to control the actuator. Therefore, a total of three corresponding control signals exist in parallel within the control interface 28. These control signals should be completely consistent for all three computing units 12, 14, and 16 to operate correctly.
[0031] When at least two corresponding control signals of two of the three computing units 12, 14, and 16 are consistent, the actuator 10 is operated by means of the control signal of at least one of the two computing units. If all three computing units 12, 14, and 16 operate as specified, the power switching device 32 of the control device 2 is operated by means of the first computing unit 12 and the second computing unit 14 such that the three coils of the actuator 10 configured for normal operation are powered by the first power supply 18 via the first computing unit 12, and the other three coils of the actuator 10 configured for normal operation are powered by the second power supply 20 via the second computing unit 14.
[0032] If one of the two computing units 12, 14 is not functioning properly, i.e. the above-mentioned control signal of the faulty computing unit 12 or 14 is different from the control signal of the properly functioning computing unit 14 or 12, there is in the control interface 28 in parallel thereto a properly functioning control signal of the third computing unit 16, which corresponds to the control signal of the properly functioning computing unit 14 or 12. Accordingly, the actuator 10 is controlled by means of the control signal of the third computing unit 16 in such a way that the power supply 18 or 20 corresponding to the faulty computing unit 12 or 14 is conductively connected to the three coil windings of the actuator 10 corresponding thereto by means of the third computing unit 16. Thereby, the above-mentioned normal operation of the actuator 10, even in the event of a fault of one computing unit 12, 14, 16 of the control device 4, is maintained by means of the above-mentioned "two-out-of-three" control by two properly functioning computing units, namely 12 and 14 or 12 and 16 or 14 and 16.
[0033] On the basis of the configuration according to the application of the control device 4, the monitoring system 2 and the method for operating the monitoring system 2, it is thus possible to implement sufficient redundancy in a motor vehicle or the like having a by-wire system in a simple and thus cost-advantageous manner and method. This can be easily understood, for example, in connection with the present embodiment, i.e. the steering of a motor vehicle. In the motor vehicle of the present embodiment, instead of the known mechanical connection between the steering wheel of the motor vehicle and at least one wheel of the motor vehicle to be steered, only a so-called steer-by-wire system is used, in which the aforementioned mechanical connection is eliminated. According to the present embodiment, it is not necessary to provide a plurality of control devices, for example, in order to achieve the aforementioned redundancy. Instead, only the control device 4 is used as the only control device for implementing the steering function of the motor vehicle. Thus, only the number of computing units is tripled, whereas the number of the remaining components of the control device 4 remains unchanged.
[0034] However, the field of application of the steering of a motor vehicle using a steer-by-wire system is merely purely exemplary. The present application can also be advantageously applied to other functions of a motor vehicle. For example, only other by-wire systems, which are also generally known as X-by-wire systems, are mentioned here. Accordingly, the present application is not limited to the present embodiment. Reference is made in this connection to the introductory part of the description as well as to the relevant explanations in the description of the specific embodiment. The basic configuration of such by-wire systems is sufficiently known to the person skilled in the art.
[0035] List of reference signs:
[0036] 2 monitoring system
[0037] 4 control device
[0038] 6 magnetic sensor
[0039] 8 inductive sensor
[0040] 9 power electronics
[0041] 10 actuator
[0042] 12 first computing unit
[0043] 14 second computing unit
[0044] 16 third computing unit
[0045] 18 first power supply
[0046] 20 second power supply
[0047] 22 signal interface
[0048] 24 bus system
[0049] 26 signal interface
[0050] 28 control interface
[0051] 30 wheel
[0052] 32 power supply adapter
Claims
1. Control device (4) for a monitoring system (2) of a motor vehicle, the monitoring system being used to monitor a function of the motor vehicle, wherein The control device (4) has at least one computing unit (12, 14, 16) for evaluating the output signal of at least one sensor (6, 8) of the monitoring system (2) and for actuating the power electronics (9) of an actuator (10) of the monitoring system (2) by means of an actuating signal depending on the output signal in order to execute the function of the motor vehicle, characterized in that the control device (4) has three computing units (12, 14, 16), which are configured and designed in such a way that the output signal of the at least one sensor (6, 8) can be evaluated in parallel in all computing units (12, 14, 16) and the power electronics (9) of the actuator (10) can be actuated by means of an actuating signal of each computing unit (12, 14, 16), and in the event of agreement of at least two actuating signals from two computing units of the three computing units (12, 14, 16) corresponding to one another, the power electronics (9) of the actuator (10) can be actuated by means of an actuating signal from at least one computing unit (12, 14; 12, 16; 14, 16) of these two computing units (12, 14; 12, 16; 14, 16).
2. The control device (4) according to claim 1, characterized in that The control device (4) is configured and designed in such a way that a first computing unit (12) of the three computing units (12, 14, 16) can be functionally connected to a first power supply (18) of the monitoring system (2) for supplying electrical power to the actuator (10) for operating the actuator (10), a second computing unit (14) of the three computing units (12, 14, 16) can be functionally connected to a second power supply (20) of the monitoring system (2) for supplying electrical power to the actuator (10) for operating the actuator (10), and a third computing unit (16) of the three computing units (12, 14, 16) can be functionally connected to the first power supply (18) and / or to the second power supply (20) for supplying electrical power to the actuator (10) for operating the actuator (10).
3. The control device (4) according to claim 1 or 2, characterized in that The control device (4) has only one signal interface (22) for all three computing units (12, 14, 16) for a sensor signal transmission connection of the three computing units (12, 14, 16) to a bus system (24) of the motor vehicle which is superior to the control device (4); by means of the bus system (24) and the signal interface (22), the output signal of at least one of the at least one sensor can be transmitted from the sensor to the computing units (12, 14, 16).
4. The control device (4) according to any one of claims 1 to 3, characterized in that The control device (4) has only one signal interface (26) for all three computing units (12, 14, 16) for the sensor signal transmission connection of the three computing units (12, 14, 16) to at least one sensor (6, 8) that functionally cooperates with the actuator (10), wherein, by means of the signal interface (26), output signals from the sensor (6, 8) can be transmitted to the computing units (12, 14, 16).
5. The control device (4) according to any one of claims 1 to 4, characterized in that The control device (4) has only one control interface (28) for all three computing units (12, 14, 16) for the control signal transmission connection of at least one of the three computing units (12, 14, 16) to the power electronics (9) of the actuator (10), wherein, by means of the control interface (28), control signals can be transmitted to the power electronics (9) of the actuator (10) such that the actuator (10) can be connected by means of the control signals to at least one power supply (18, 20) of the monitoring system (2) for supplying electrical power to the actuator (10) for operating the actuator (10).
6. The control device (4) according to any one of claims 1 to 5, characterized in that The control device (4) is configured as one structural unit, preferably all computing units (12, 14, 16) of the control device (4) are configured essentially identically to one another in terms of function.
7. A monitoring system (2) for a motor vehicle for monitoring a function of the motor vehicle, having at least one control device (4), wherein the control device (4) has at least one computing unit (12, 14, 16) for evaluating output signals of at least one sensor (6, 8) of the monitoring system (2) and for actuating power electronics (9) of an actuator (10) of the monitoring system (2) by means of control signals depending on the output signals in order to execute the function of the motor vehicle, characterized in that The control device (4) is configured as the control device (4) according to any one of claims 1 to 6.
8. The monitoring system (2) according to claim 7, characterized in that The control device (4) is configured as only one control device (4).
9. The monitoring system (2) according to claim 7 or 8, characterized in that The monitoring system (2) is configured as a monitoring system (2) for the steering of at least one wheel (30) of the motor vehicle, wherein the actuator (10) is operable to steer the at least one wheel (30) in dependence on an output signal of at least one sensor of the monitoring system (2) that functionally cooperates with a steering wheel of the motor vehicle for determining a steering movement of the steering wheel and in dependence on an output signal of at least one sensor (6, 8) of the monitoring system (2) that functionally cooperates with the actuator (10) of the monitoring system (2) for determining a steering position of the wheel (30), preferably the monitoring system (2) is configured as a steer-by-wire monitoring system only.
10. The monitoring system (2) according to any one of claims 7 to 9, characterized in that The control device (4) comprises at least two of the following components of the monitoring system (2), preferably all of the following components, particularly preferably as one structural unit: the three computing units (12, 14, 16); a signal interface (22) for the sensor signal transmission connection of the three computing units (12, 14, 16) to a bus system (24) that is superior to the control device (4); a signal interface (26) for the sensor signal transmission connection of the three computing units (12, 14, 16) to at least one sensor (6, 8) that functionally cooperates with the actuator (10); a control interface (28) for the control signal transmission connection of at least one of the three computing units (12, 14, 16) to the power electronics (9) of the actuator (10). a control interface (28) for a control signal transmission connection of the three computing units (12, 14, 16) to the power electronics (9) of the actuator (10); power electronics (9) for the actuator (10); a power supply switching device (32) for the controlled connection of at least one of the at least two power supplies (18, 20) of the monitoring system (2) to the actuator (10) by means of the control interface (28) for the supply of electrical power to the actuator (10) for operating the actuator (10); the actuator (10).
11. The method for operating a monitoring system (2) of a motor vehicle according to any one of claims 7 to 10, wherein the output signal of the at least one sensor (6, 8) is evaluated in parallel in all computing units (12, 14, 16) and the power electronics (9) of the actuator (10) can be controlled by means of the control signals of each computing unit (12, 14, 16), wherein in the event of agreement of at least two mutually corresponding control signals from two of the three computing units (12, 14, 16), the power electronics (9) of the actuator (10) are controlled by means of the control signal from at least one of the two computing units (12, 14; 12, 16; 14, 16).
12. The method of claim 11, wherein, The power electronics (9) of the actuator (10) are controlled by means of control signals in such a way that the actuator (10) is connected by means of the control signals to at least one power supply (18, 20) of the monitoring system (2) for supplying electrical power to the actuator (10) for operating the actuator (10).
13. The method according to claim 11 or 12, characterized in that, The actuator (10) which is connected in a force-transmitting manner to at least one wheel (30) of the motor vehicle is operated in accordance with the output signal of at least one sensor of the monitoring system (2) which functionally cooperates with a steering wheel of the motor vehicle for determining a steering movement of the steering wheel and in accordance with the output signal of at least one sensor (6, 8) of the monitoring system (2) which functionally cooperates with the actuator (10) for determining a steering position of the wheel (30), preferably the monitoring system (2) is operated only as a steer-by-wire monitoring system.