Electrical assembly, vehicle electrical system, vehicle and process

Abstract

The present invention relates to an electrotechnical assembly (1, 2) for an on-board electrical system (100) of a vehicle (200), wherein the electrotechnical assembly (1, 2) comprises at least one primary electrotechnical function component for fulfilling a primary function, and wherein the electrotechnical assembly (1, 2) is configured at least to fulfill a secondary function for the on-board electrical system (100), wherein, in order to fulfill the secondary function for the on-board electrical system (100), the electrotechnical assembly (1, 2) is configured at least to monitor at least one electrical state variable of the electrotechnical assembly (1, 2) and to prevent a violation of at least one violation criterion based on the at least one monitored electrical state variable of the electrotechnical assembly (1, 2).2) to recognize and, furthermore, in response to the recognition of the violation of at least one violation criterion, to independently transfer itself, at least temporarily, from a first operating point to a second operating point in order to electrically stabilize the on-board network (100), at least temporarily.

Description

[0001] The present invention relates to an electrotechnical assembly, a vehicle electrical system with such an electrotechnical assembly, a vehicle and a method for electrotechnically stabilizing a vehicle electrical system.

[0002] Vehicle electrical systems can contain actuators. These actuators can feed electrical energy into an electrical conductor of the electrical system (regenerative energy) as a result of a force acting upon them, thereby increasing the system voltage. This regenerative energy is generally unpredictable or difficult to predict.

[0003] In particular, it is an object of the present invention to provide an electrotechnical assembly by means of which an on-board electrical system can be electrotechnically stabilized in a particularly simple, cost-effective, and / or rapid manner. Furthermore, it is a particular object of the invention to provide an on-board electrical system, a vehicle with an on-board electrical system, or a method for electrotechnically stabilizing an on-board electrical system, in which the on-board electrical system can be electrotechnically stabilized in a particularly simple, cost-effective, and / or rapid manner.

[0004] The foregoing problem is solved by an electrotechnical assembly with the features of claim 1, an on-board power supply with the features of claim 6, a vehicle with the features of claim 12, and a method with the features of claim 13. Further features and details of the invention will become apparent from the dependent claims, the description, and the drawings. Features and details described in connection with the electrotechnical assembly according to the invention naturally also apply in connection with the on-board power supply and / or vehicle and / or method according to the invention, and vice versa, so that the disclosure of the individual aspects of the invention always makes, or can make, reciprocal references.

[0005] According to a first aspect, the present invention shows an electrotechnical assembly for a vehicle electrical system, wherein the electrotechnical assembly comprises at least one electrotechnical primary function component for fulfilling or co-fulfilling a primary function, in particular for fulfilling a primary function of the vehicle.Furthermore, the electrotechnical assembly is at least designed to fulfill a secondary function for the vehicle electrical system, wherein, in order to fulfill the secondary function for the vehicle electrical system, the electrotechnical assembly is at least designed to monitor at least one electrical state variable of the electrotechnical assembly and to detect a violation of at least one violation criterion based on the at least one monitored electrical state variable of the electrotechnical assembly and, as a reaction to the detection of the violation of the at least one violation criterion, to independently transition, at least temporarily, from a first operating point to a second operating point in order to electrically stabilize the vehicle electrical system, at least temporarily.

[0006] Features, advantages, details and / or effects described above and below for the electrotechnical assembly can also be transferred to the first electrotechnical assembly and / or the second electrotechnical assembly and / or the electrotechnical generator assembly, and vice versa.

[0007] In particular, the electrotechnical assembly, in response to the detection of a violation of at least one violation criterion, automatically, and especially autonomously, transitions at least temporarily from a first operating point to a second operating point, whereby the electrotechnical assembly, at least in the second operating point, fulfills its primary function by means of at least one electrotechnical primary functional component in order to electrically stabilize the vehicle electrical system, at least temporarily. For example, the electrotechnical assembly can be a seat heating device, wherein the primary function of the seat heating device is to temper or heat a vehicle seat by means of a heating element as its primary electrotechnical functional component.The seat heating device can be configured to monitor an electrical voltage of the seat heating device and to detect a violation of at least one violation criterion based on the at least one monitored electrical voltage of the seat heating device, and in response to the detection of the violation of the at least one violation criterion, to automatically switch at least temporarily from the first operating point to the second operating point in order to electrically stabilize the vehicle electrical system at least temporarily, wherein the seat heating device, at least in the second operating point, fulfills the primary function of the seat heating device, i.e., the tempering or heating of the vehicle seat, by means of at least one primary electrical component.

[0008] Furthermore, the electrotechnical assembly can be configured to detect at least one assembly parameter indicative of the at least one (monitored) electrical state parameter of the electrotechnical assembly, in order to monitor the at least one electrical state parameter of the electrotechnical assembly, e.g., an electrical voltage, based on the detected assembly parameter. Preferably, an electrical voltage, in particular an electrical input voltage, of the electrotechnical assembly is directly detected and monitored. Thus, a violation of a voltage criterion can be detected particularly easily as the at least one violation criterion based on the monitored electrical voltage of the electrotechnical assembly, and in response to the detection of the violation of the voltage criterion, the electrotechnical assembly can automatically or automatically correct itself.To autonomously transition, at least temporarily, from a first operating point to a second operating point in such a way that the vehicle electrical system, in particular its voltage, is electrically stabilized, at least temporarily. Stabilizing the vehicle electrical system, in particular its voltage, can be understood as stabilizing the system in such a way that it is kept operationally reliable, specifically within a safe and / or permissible and / or safety-relevant range (especially in the sense of ISO 26262), e.g., within a safe and / or permissible voltage range. This ensures the correct functioning of the vehicle electrical system components.

[0009] In particular, the acquisition of an assembly parameter indicative of at least one (monitored) electrical state parameter of the electrotechnical assembly can be carried out by means of an acquisition unit of the electrotechnical assembly, and / or the monitoring of at least one electrical state parameter of the electrotechnical assembly can be carried out by means of a monitoring unit of the electrotechnical assembly, and / or the detection of the violation of at least one violation criterion based on the at least one monitored electrical state parameter of the electrotechnical assembly can be carried out by means of a detection unit of the electrotechnical assembly, and / or the independent,The electrotechnical assembly must be transferred, at least temporarily, from the first operating point to the second operating point by means of a transfer unit of the electrotechnical assembly in response to the detection of a violation of at least one violation criterion. The electrotechnical assembly can fulfill the secondary function for the vehicle electrical system by means of the detection unit and / or the monitoring unit and / or the recognition unit and / or the transfer unit.

[0010] Because the electrical assembly automatically transitions, at least temporarily, from a first operating point to a second operating point in response to the detection of a violation of at least one violation criterion—for example, by being activated—the vehicle electrical system can be stabilized electrically in a particularly simple, cost-effective, and / or rapid manner. This eliminates, at least partially, the need for a higher-level control device to detect, for example, an (impermissible) excessive voltage in the electrical system and subsequently control individual electrical consumers in a slower, centralized manner, such as activating them, to counteract the excessive voltage.Furthermore, the electrical assembly can exhibit higher electrical power consumption, particularly higher apparent power consumption, at the second operating point than at the first operating point, so that (critical) excess electrical energy from the vehicle electrical system is used to electrically stabilize the system, especially the system voltage. This makes it particularly easy to prevent the system voltage from leaving a safe and / or permissible range.

[0011] For example, a device in the vehicle's electrical system that allows reactive power control, such as an electric motor, can automatically adjust its operating point to maximize reactive power consumption, at least temporarily, and convert the (critical) excess energy into heat. This is also possible, in particular, with devices using resonant circuits, such as a galvanically isolated converter between the 48V and 12V electrical systems, especially a dual active bridge converter.

[0012] Furthermore, the electrotechnical assembly can include one or more semiconductor switches of one or more electronic fuses (eFuses) of the vehicle electrical system as primary electrotechnical functional component(s) and be designed such that the conduction of an electric current in a ring configuration is specifically carried out, e.g., via the one (closed) semiconductor switch or the several (closed) semiconductor switches of the one or more electronic fuses, in such a way that (critical) excess energy in the vehicle electrical system is dissipated via line losses, advantageously distributing the excess energy over a maximum line length or a maximum line resistance.

[0013] In an electrotechnical component group according to the invention, it can be advantageous that the at least one monitored electrical state variable of the electrotechnical assembly is an electrical voltage, in particular an electrical input voltage, of the electrotechnical assembly, and that the violation criterion is a voltage criterion, wherein, in particular, the electrical voltage of the electrotechnical assembly is indicative of the vehicle electrical system voltage. Advantageously, an electrical voltage of the electrotechnical assembly can be detected and monitored particularly easily.

[0014] In an electrotechnical component group according to the invention, it can be advantageous for the violation criterion to have at least one first threshold value, wherein, in particular, a violation of the violation criterion occurs when the threshold value is exceeded. Thus, a violation of the violation criterion can be determined and detected particularly easily by comparing the at least one monitored electrical state variable of the electrotechnical component group with the at least one first threshold value. For example, in the case of a voltage criterion, the voltage criterion can have at least one first voltage threshold value, wherein, in response to exceeding the first voltage threshold value, the electrotechnical component group automatically transitions, at least temporarily, from the first operating point to the second operating point, e.g.The electrical component is activated to ensure the safe operation of the vehicle's electrical system, particularly its voltage, by absorbing electrical energy. It is also conceivable that the violation criterion has additional thresholds besides the first. The first threshold and / or the subsequent thresholds can each be configurable, for example, via remote update from the internet, on the production line at the factory, or at the dealership's workshop. This allows, for instance, vehicle-specific production variations to be directly incorporated into the selection of a given threshold.Additionally or alternatively, fleet data can be used to select an averaged dataset across various vehicles for defining a specific threshold, particularly the first threshold. This threshold, especially the first threshold, is then adapted to the actual vehicle. In particular, the electrotechnical component group or vehicle can thus learn the first threshold itself, while a second threshold is an absolute, fixed threshold that protects the system in a particularly large number of cases. The first, learnable (or learned) threshold can, for example, increase voltage stability in the vehicle's electrical system, which can have a positive effect on component aging.

[0015] In an electrotechnical component group according to the invention, it can be advantageous that, in response to the detection of a violation of at least one violation criterion, the electrotechnical component group independently controls, at least temporarily, itself from the first operating point to the second operating point and subsequently to an operating point different from the second operating point, depending on the at least one monitored electrical state variable of the electrotechnical component group, in particular regulating itself in order to stabilize the vehicle electrical system at least temporarily.

[0016] In an electrotechnical component group according to the invention, it can be advantageous that the electrotechnical assembly exhibits a higher electrical power, in particular a higher apparent power, consumed at the second operating point than at the first operating point, for at least temporary electrotechnical stabilization of the vehicle electrical system. Thus, electrical energy fed into an electrical line of the vehicle electrical system, in particular regenerative energy, e.g., generated as a result of a force acting on an actuator electrically arranged in the vehicle electrical system, can be at least partially absorbed by the electrotechnical assembly, and the vehicle electrical system can be kept particularly reliable, in particular counteracting an increase in the vehicle electrical system voltage or an undesired increase in the vehicle electrical system voltage. Here, too, it is possible to "learn" which operating point (or operating point), e.g.,Based on a fleet analysis, the system achieves its goal. For example, only the energy that has contributed 99% to achieving the goal can be converted into heat. Alternatively, or in addition to a learnable (or already learned) second operating point, a fixed, absolute second or further operating point can be coded.

[0017] According to a second aspect, the present invention discloses an electrical system for a vehicle. The electrical system comprises a power source for providing electrical energy. Furthermore, the electrical system comprises at least one first electrotechnical assembly, wherein the at least one first electrotechnical assembly is designed or configured according to the invention, and wherein the power source is electrotechnically coupled to at least one first electrotechnical assembly.

[0018] The energy source for providing electrical energy may include an electrochemical energy storage device, in particular a battery, and / or a fuel cell stack of a fuel cell system.

[0019] In an on-board electrical system according to the invention, it can be advantageous for the system to further comprise a second electrotechnical assembly, wherein the second electrotechnical assembly is designed or configured according to the invention, wherein the energy source is furthermore electrotechnically coupled to the second electrotechnical assembly, and wherein, in particular, the violation criterion of the first electrotechnical assembly differs from the violation criterion of the second electrotechnical assembly. Because the on-board electrical system comprises several electrotechnical assemblies according to the invention, the system can be electrotechnically stabilized particularly easily, cost-effectively, and / or quickly, and in particular, stabilized quickly and decentrally by the several electrotechnical assemblies.In particular, the violation criterion of the first electrotechnical assembly can have a first threshold value, and the violation criterion of the second electrotechnical assembly can have at least one first threshold value, wherein the first threshold value of the violation criterion of the first electrotechnical assembly and the first threshold value of the violation criterion of the second electrotechnical assembly are different. Furthermore, because the violation criterion of the first electrotechnical assembly differs from the violation criterion of the second electrotechnical assembly, a stabilization of the electrical system, in particular of the electrical system voltage, can be achieved that depends on the state of the electrical system.

[0020] In a vehicle electrical system according to the invention, it can further be advantageous if the vehicle electrical system also has a second electrotechnical assembly designed according to the invention, then the first electrotechnical assembly and the second electrotechnical assembly are each designed to independently monitor the respective at least one electrical state variable of the respective electrotechnical assembly and to detect the violation of the respective at least one violation criterion based on the respective at least one monitored electrical state variable of the respective electrotechnical assembly and furthermore, as a reaction thereto, to independently transition at least temporarily from the respective first operating point to the respective second operating point in order to electrically stabilize the vehicle electrical system at least temporarily.This allows the vehicle electrical system to be stabilized in a decentralized manner, particularly easily, cost-effectively, and / or quickly.

[0021] In an on-board network according to the invention, it can be advantageous for the on-board network to have a first voltage side, in particular a high-voltage side, with a first voltage level and a second voltage side, in particular a low-voltage side, with a second voltage level different from the first, wherein the energy source is electrically arranged in the first voltage side, and wherein the first voltage side and the second voltage side are electrically coupled by means of an electrical converter, in particular by means of an electrical voltage converter, wherein at least one electrical generator assembly is electrically arranged in the second voltage side, wherein the at least one electrical generator assembly is configured toto generate regenerative electrical energy in a generator-like and / or inverse operation and to feed the generated regenerative electrical energy into an electrical line of the vehicle electrical system, wherein at least one first electrotechnical assembly is electrotechnically arranged, and in particular designed, in the second voltage side. Thus, the at least one first electrotechnical assembly can consume any excess regenerative electrical energy occurring in the second voltage side of the vehicle electrical system and supply the vehicle electrical system, in particular a voltage of the second voltage side of the vehicle electrical system.The electrical system is kept particularly stable and reliable. Advantageously, in an on-board electrical system according to the invention, the second voltage side of the system can be free of dedicated energy storage devices for receiving regenerative electrical energy, thus making the on-board electrical system particularly simple, cost-effective, and / or safe.

[0022] The on-board network according to the second aspect of the invention thus has the same advantages as those already described for the electrotechnical assembly according to the first aspect of the invention.

[0023] According to a third aspect, the present invention shows a vehicle wherein the vehicle has a vehicle electrical system designed according to the invention.

[0024] The vehicle according to the third aspect of the invention thus has the same advantages as those already described for the electrotechnical assembly according to the first aspect of the invention or the on-board network according to the second aspect of the invention.

[0025] The vehicle can be a motor vehicle, in particular a passenger car or a truck or a motorcycle.

[0026] According to a fourth aspect, the present invention discloses a method for electrotechnically stabilizing a vehicle's electrical system, wherein the electrical system is designed or configured according to the invention. The method comprises, as a step, monitoring at least one electrical state variable of the first electrical assembly of the electrical system by means of the first electrical assembly.Furthermore, the method includes, as a step, the detection of a violation of at least one violation criterion by means of the first electrotechnical assembly based on the at least one monitored electrical state variable of the first electrotechnical assembly, wherein, in response to the detection of the violation of the at least one violation criterion, the first electrotechnical assembly independently, at least temporarily, transitions from a first operating point to a second operating point in a further step of the method in order to electrically stabilize the on-board network, at least temporarily.

[0027] The method can further include, as a step, the acquisition of at least one assembly parameter indicative of the at least one (monitored) electrical state parameter of the electrotechnical assembly, in order to be able to monitor the at least one electrical state parameter of the electrotechnical assembly based on the acquired assembly parameter.

[0028] The process steps described above and below can be carried out individually, together, simply, multiple times, in parallel and / or sequentially in any order, provided it is technically feasible.

[0029] The method according to the fourth aspect of the invention thus has the same advantages as those already described for the electrotechnical component group according to the first aspect of the invention, the on-board network according to the second aspect of the invention, or the vehicle according to the third aspect of the invention.

[0030] Further improvements to the invention will become apparent from the following description of some exemplary embodiments of the invention, which are schematically illustrated in the figures. All features and / or advantages arising from the claims, the description, or the drawings, including design details, spatial arrangements, and process steps, can be essential to the invention, both individually and in various combinations. It should be noted that the figures are for descriptive purposes only and are not intended to limit the invention in any way.

[0031] They show schematically: Fig. 1 a first electrotechnical assembly and a vehicle electrical system, Fig. 2 a vehicle, and Fig. 3 a procedure.

[0032] In the following figures, identical reference numerals are used for the same technical features even for different embodiments.

[0033] Fig. Figure 1 schematically discloses a first electrotechnical assembly (1) for a vehicle electrical system (100) of a vehicle (200) and schematically a vehicle electrical system (100) with the first electrotechnical assembly (1). The first electrotechnical assembly (1) comprises at least one primary electrotechnical functional component (not shown) for fulfilling a primary function.Furthermore, the first electrotechnical assembly (1) is at least configured to perform a secondary function for the vehicle electrical system (100), wherein, in order to perform the secondary function for the vehicle electrical system (100), the first electrotechnical assembly (1) is at least configured to monitor at least one electrical state variable of the first electrotechnical assembly (1) and to detect a violation of at least one violation criterion based on the at least one monitored electrical state variable of the first electrotechnical assembly (1), and, as a reaction to the detection of the violation of the at least one violation criterion, to independently transition, at least temporarily, from a first operating point to a second operating point in order to electrically stabilize the vehicle electrical system (100), at least temporarily.

[0034] It can happen during the Fig. It may also be advantageous that the at least one monitored electrical state variable of the first electrical assembly (1) shown in Figure 1 is an electrical voltage, in particular an electrical input voltage, of the first electrical assembly (1) and that the violation criterion is a voltage criterion.

[0035] It can happen during the Fig. 1 first electrotechnical assembly (1) shown in the illustration may also be advantageous in that the violation criterion has at least a first threshold value.

[0036] It can happen during the Fig. It is further advantageous that, in response to the detection of a violation of at least one violation criterion, the first electrotechnical assembly (1) independently controls, at least temporarily, itself from the first operating point to the second operating point and subsequently to an operating point different from the second operating point, depending on the at least one monitored electrical state variable of the first electrotechnical assembly (1), in order to at least temporarily stabilize the on-board network (100) electrotechnically.

[0037] It can happen during the Fig. It is also advantageous that the first electrotechnical assembly (1) shown in Figure 1 has a higher electrical power output at the second operating point than at the first operating point for at least temporary electrotechnical stabilization of the on-board network (100).

[0038] The in Fig. The vehicle electrical system (100) shown comprises a power source (10) for providing electrical energy, and at least the first electrotechnical assembly (1), wherein the first electrotechnical assembly (1) is designed according to the invention (as e.g. to Fig. 1 revealed,) and wherein the energy source (10) is at least electrically coupled to the first electrotechnical assembly (1), e.g. via an electrotechnical converter (90).

[0039] It can happen at the in Fig. It is further advantageous that the on-board network (100) shown in Figure 1 also comprises a second electrotechnical assembly (2), wherein the second electrotechnical assembly (2) is also designed according to the invention. The energy source (10) is also electrotechnically coupled to the second electrotechnical assembly (2). The violation criterion of the first electrotechnical assembly (1) and the violation criterion of the second electrotechnical assembly (2) can be the same or different.

[0040] It can happen at the in Fig. In the vehicle electrical system (100) shown in Figure 1, it is further advantageous that the first electrotechnical assembly (1) and the second electrotechnical assembly (2) are each designed to independently monitor at least one electrical state variable of the respective electrotechnical assembly (1, 2), e.g., to independently monitor each electrical input voltage, and to detect the violation of at least one violation criterion based on the respective at least one monitored electrical state variable of the respective electrotechnical assembly (1, 2), and furthermore, as a reaction thereto, to independently transition at least temporarily from the respective first operating point to the respective second operating point in order to electrically stabilize the vehicle electrical system (100) at least temporarily.

[0041] It can happen at the in Fig. In the vehicle electrical system (100) shown in Figure 1, it is further advantageous that the vehicle electrical system (100) has a first voltage side (HVS) with a first voltage level and a second voltage side (NVS) with a second voltage level different from the first, wherein the energy source (10) is electrically arranged in the first voltage side (HVS), wherein the first voltage side (HVS) and the second voltage side (NVS) are electrically coupled by means of an electrical converter (90), wherein at least one electrical generator assembly (3) is electrically arranged in the second voltage side (NVS), wherein the at least one electrical generator assembly (3) is configured to generate electrical regenerative energy in a generator and / or inverse operation and to feed the generated electrical regenerative energy into an electrical line (80) of the vehicle electrical system (100).and wherein at least one first electrotechnical assembly (1) is also electrotechnically arranged, and in particular designed, in the second voltage side (NVS) in order to at least partially consume electrically the (excess / critical) regenerative energy fed into the electrical line (80) by the at least one electrotechnical generator assembly (3). Thus, a system voltage of the system (100) can be particularly easily and safely within a reliable, in particular reliable and permissible, operating environment.The area is maintained. Furthermore, the second electrotechnical assembly (2) can, alternatively or additionally to the first electrotechnical assembly (1), at least partially consume the (excess / critical) regenerative energy fed into the electrical line (80) by the at least one electrotechnical generator assembly (3). Advantageously, the second voltage side (NVS) can thus be designed without energy storage devices specifically arranged for the absorption of regenerative energy.

[0042] Fig. Figure 2 schematically discloses a vehicle (200), wherein the vehicle (200) has a vehicle electrical system (100) designed according to the invention, as is already the case, for example, with Fig. 1 is revealed.

[0043] Fig. Figure 3 schematically discloses a method for electrotechnically stabilizing a vehicle electrical system (100) of a vehicle (200), wherein the vehicle electrical system (100) is designed according to the invention, as e.g. Fig. 1 and / or Fig.2 disclosed. The method comprises, as a step, monitoring (420) at least one electrical state variable of the first electrotechnical assembly (1) of the vehicle electrical system (100) by means of the first electrotechnical assembly (1). Furthermore, the method comprises, as a step, detecting (440) a violation of at least one violation criterion by means of the first electrotechnical assembly (1) based on the at least one monitored electrical state variable of the first electrotechnical assembly (1), wherein, in response to the detection of the violation of the at least one violation criterion, in a further step of the method, the first electrotechnical assembly (1) independently transitions itself, at least temporarily, from a first operating point to a second operating point (460) in order to electrically stabilize the vehicle electrical system (100), at least temporarily. Reference symbol list 1 first electrotechnical assembly 2 second electrotechnical assembly 3 electrotechnical generator assembly 10 Energy source 80 electrical line (cable) 90 electrotechnical converters 100 On-board power supply 200 vehicles 420 Monitoring an electrical state variable of the first electrotechnical assembly 440 Identifying an injured person by at least one injury criterion 460 Transferring the first electrotechnical assembly from a first operating point to a second operating point HVS first voltage side NVS second voltage side

Claims

[1] Electrotechnical assembly (1, 2) for a vehicle electrical system (100) (200), wherein the electrotechnical assembly (1, 2) has at least one primary electrotechnical function component for fulfilling a primary function, and wherein the electrotechnical assembly (1, 2) is configured at least to: - to fulfill a secondary function for the vehicle electrical system (100), wherein, in order to fulfill the secondary function for the vehicle electrical system (100), the electrotechnical assembly (1, 2) is at least configured to monitor at least one electrical state variable of the electrotechnical assembly (1, 2) and to detect a violation of at least one violation criterion based on the at least one monitored electrical state variable of the electrotechnical assembly (1, 2) and, as a reaction to the detection of the violation of the at least one violation criterion, to independently transition at least temporarily from a first operating point to a second operating point in order to electrotechnically stabilize the vehicle electrical system (100) at least temporarily. [2] Electrotechnical assembly (1, 2) according to claim 1, characterized by, that at least one monitored electrical state variable of the electrotechnical assembly (1, 2) is an electrical voltage of the electrotechnical assembly (1, 2) and the violation criterion is a voltage criterion. [3] Electrotechnical assembly (1, 2) according to one of the preceding claims, characterized by that the injury criterion has at least an initial threshold value. [4] Electrotechnical assembly (1, 2) according to one of the preceding claims, characterized by, that in response to the detection of the violation of at least one violation criterion, the electrotechnical assembly (1, 2) independently controls, at least temporarily, itself from the first operating point to the second operating point and subsequently to an operating point different from the second operating point, depending on the at least one monitored electrical state variable of the electrotechnical assembly (1, 2), in particular regulates, in order to at least temporarily stabilize the on-board network (100) electrotechnically. [5] Electrotechnical assembly (1, 2) according to one of the preceding claims, characterized by , that the electrotechnical assembly (1, 2) has a higher electrical power output in the second operating point than in the first operating point for at least temporary electrotechnical stabilization of the on-board network (100). [6] On-board electrical system (100) for a vehicle (200), wherein the on-board electrical system (100) comprises: - an energy source (10) for providing electrical energy, - at least one first electrotechnical assembly (1), wherein the at least one first electrotechnical assembly (1) is designed according to one of the preceding claims, and wherein the energy source (10) is electrotechnically coupled to the at least one first electrotechnical assembly (1). [7] On-board electrical system (100) according to claim 6, characterized by , that the on-board network (100) further comprises a second electrotechnical assembly (2), wherein the second electrotechnical assembly (2) is designed according to one of claims 1 to 5, wherein the energy source (10) is furthermore electrotechnically coupled to the second electrotechnical assembly (2), and wherein in particular the violation criterion of the first electrotechnical assembly (1) differs from the violation criterion of the second electrotechnical assembly (2). [8] On-board electrical system (100) according to claim 7, characterized by , that the violation criterion of the first electrotechnical assembly (1) has a first threshold and the violation criterion of the second electrotechnical assembly (2) has at least a first threshold, wherein the first threshold of the violation criterion of the first electrotechnical assembly (1) and the first threshold of the violation criterion of the second electrotechnical assembly (2) are different. [9] On-board electrical system (100) according to one of claims 7 to 8, characterized by, that the first electrotechnical assembly (1) and the second electrotechnical assembly (2) are each configured to independently monitor the respective at least one electrical state variable of the respective electrotechnical assembly (1, 2) and to detect the violation of the respective at least one violation criterion based on the respective at least one monitored electrical state variable of the respective electrotechnical assembly (1, 2) and furthermore, as a reaction thereto, to independently transition at least temporarily from the respective first operating point to the respective second operating point in order to electrically stabilize the on-board network (100) at least temporarily. [10] On-board electrical system (100) according to one of claims 7 to 9, characterized bythat the vehicle electrical system (100) has a first voltage side (HVS) with a first voltage level and a second voltage side (NVS) with a second voltage level different from the first, wherein the energy source (10) is electrically arranged in the first voltage side (HVS), wherein the first voltage side (HVS) and the second voltage side (NVS) are electrically coupled by means of an electrical converter (90), wherein at least one electrical generator assembly (3) is electrically arranged in the second voltage side (NVS), wherein the at least one electrical generator assembly (3) is configured to generate regenerative electrical energy in generator and / or inverse operation and to feed the generated regenerative electrical energy into an electrical line (80) of the vehicle electrical system (100),and wherein at least one first electrotechnical assembly (1) is electrotechnically arranged, in particular designed, in the second voltage side (NVS). [11] On-board electrical system (100) according to claim 10, characterized by , that the second voltage side (NVS) is free of electrically arranged energy storage devices specifically designed to receive electrical regenerative energy. [12] Vehicle (200), wherein the vehicle (200) has an on-board electrical system (100) designed according to any one of claims 6 to 11. [13] Method for electrotechnically stabilizing an on-board electrical system (100) of a vehicle (200), wherein the on-board electrical system (100) is designed according to one of claims 6 to 11, and wherein the method comprises: - Monitoring (420) at least one electrical state variable of the first electrical assembly (1) of the vehicle electrical system (100) by means of the first electrical assembly (1), - Detecting (440) a violation of at least one violation criterion by means of the first electrotechnical assembly (1) based on the at least one monitored electrical state variable of the first electrotechnical assembly (1), wherein, in response to the detection of the violation of the at least one violation criterion, the first electrotechnical assembly (1) independently transitions at least temporarily from a first operating point to a second operating point (460) in order to stabilize the on-board network (100) at least temporarily.

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