WO2022175181A1 - Bordnetz und verfahren zum betrieb eines bordnetzes - Google Patents
Bordnetz und verfahren zum betrieb eines bordnetzes Download PDFInfo
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- WO2022175181A1 WO2022175181A1 PCT/EP2022/053383 EP2022053383W WO2022175181A1 WO 2022175181 A1 WO2022175181 A1 WO 2022175181A1 EP 2022053383 W EP2022053383 W EP 2022053383W WO 2022175181 A1 WO2022175181 A1 WO 2022175181A1
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- Prior art keywords
- sub
- network
- switching element
- event
- electrical system
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 22
- 230000007257 malfunction Effects 0.000 claims description 20
- 238000002955 isolation Methods 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/106—Parallel operation of dc sources for load balancing, symmetrisation, or sharing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0027—Post collision measures, e.g. notifying emergency services
Definitions
- the invention relates to an on-board electrical system for a vehicle.
- the invention relates to the efficient and reliable arrangement of electrical consumers in a vehicle electrical system.
- a vehicle has at least one on-board electrical system for supplying electrical energy to a large number of electrical loads in the vehicle. Different electrical loads can have different functional safety requirements.
- the vehicle can have one or more electrical consumers that are safety-relevant for the (driving) operation of the vehicle and/or that have to be designed according to a specific ASIL (Automotive Safety Integrity Level).
- ASIL Automotive Safety Integrity Level
- the vehicle typically has one or more electrical consumers that are not safety-related and/or that only have to be provided in accordance with QM (quality measure or quality management).
- This document deals with the technical task of operating different electrical consumers, in particular with different integrity and/or usage requirements, in an efficient and reliable manner within an on-board network.
- an on-board electrical system for a (motor) vehicle is described.
- the vehicle electrical system can have a nominal voltage in the low-voltage range of 60V or less, in particular 12V or 48V.
- the vehicle electrical system includes a first sub-network with a first energy source and with one or more first electrical consumers.
- the first energy source can include a DC-DC converter for providing electrical energy from another vehicle electrical system with a different mains voltage and/or a generator for generating electrical energy.
- the first sub-network (in particular the components of the first sub-network) can be designed according to QM (Quality Management) according to IS026262 and/or not according to an ASIL (automotive safety integrity level) level A to D according to IS026262.
- the vehicle electrical system also includes a second sub-network with a second energy source and with one or more second electrical consumers.
- the second energy source can include an energy store, in particular an electrochemical energy store, such as a lithium-ion-based battery or a lead-acid battery.
- the second sub-network (in particular the components of the second sub-network) can be designed according to an ASIL level A to D according to IS026262.
- the vehicle electrical system also includes an isolating switching element (e.g. a relay and/or a semiconductor-based switching element), which is designed to isolate the first sub-network from the second sub-network (by opening the isolating switching element) or the first sub-network to the second sub-network (Electrically conductive) to connect (when the separating switching element is closed).
- the Separation Switching element can be designed according to an ASIL level A to D according to IS026262.
- the isolating switching element can be used to (galvanically) isolate the first sub-network (which can have relatively low integrity requirements compared to the second sub-network) from the second sub-network (in particular by opening the isolating switching element). In this way it can be ensured in an efficient and reliable manner that, in the event of an event (e.g. a fault or an accident), safe operation of one or more components of the second sub-network is still enabled (without any possible impairment by the first sub-network).
- an event e.g. a fault or an accident
- the vehicle electrical system also includes at least one event-relevant electrical consumer.
- An event-relevant consumer can be a consumer that does not meet the security and/or integrity requirements of the second subnetwork, but (to provide a subset of subfunctions of the event-relevant consumer) when an opening event occurs (at which the isolating switching element is opened) should be coupled to the second sub-network.
- the event-relevant consumer can, for example, be designed according to QM according to ISO26262 and/or not according to ASIL levels A to D.
- An example of an event-relevant consumer is a door control device that is designed to unlock a vehicle door.
- the event-relevant consumer can be designed to provide a total set of sub-functions when the event-relevant consumer is coupled to the first sub-network. Furthermore, the event-relevant consumer can be designed to provide only a subset (reduced compared to the total amount) of the total amount of subfunctions if the event-relevant consumer is coupled to the second subnetwork. Alternatively or additionally, the event-relevant consumer can be designed in such a way that the event-relevant consumer has a lower electrical Has energy consumption and/or a lower electrical power requirement when the event-relevant consumer is coupled to the second sub-network than when the event-relevant consumer is coupled to the first sub-network.
- the vehicle electrical system also includes an alternating switching element (e.g. an alternating relay and/or a semiconductor-based switching element), which is designed to selectively (either directly) bypass the event-relevant consumer past the isolating switching element and/or without involving the isolating switching element. to couple to the first sub-network or (directly) to the second sub-network.
- the changeover switching element can be arranged parallel to the isolating switching element.
- the changeover switching element can be designed to couple the event-relevant load selectively (either) to a first node of the isolating switching element (electrically conductive), which faces the first sub-network, or to a second node of the isolating switching element (electrically conductive) to be coupled, which faces the second sub-network.
- the isolating switching element can be designed to (galvanically) couple the first node and the second node to one another (if the isolating switching element is closed) or (galvanically) to isolate them from one another (if the isolating switching element is open).
- the changeover switching element can be designed according to an ASIL level A to D according to IS026262.
- a vehicle electrical system is thus described which is designed to couple at least one event-relevant consumer past the isolating switching element either to the first sub-network (in order to enable normal operation of the event-relevant consumer with a relatively high energy consumption) or to the second to couple sub-network (in order to provide one or more event-relevant sub-functions of the event-relevant consumer in the presence of an opening event (which is not due to a malfunction in the first sub-network). So an event-relevant consumer with relatively low integrity requirements (especially with a restriction to QM requirements) can be operated efficiently within the vehicle electrical system.
- the vehicle electrical system can be designed in such a way that the changeover switching element, in normal operation and/or when the isolating switching element connects the first sub-network to the second sub-network (electrically conductive), the event-relevant consumer, in particular without the integration of the isolating switching element, (directly, electrically conductive) connects to the first sub-network.
- the vehicle electrical system can be designed in such a way that the changeover switching element, when there is an opening event (which is not based on a malfunction in the first sub-network) and/or when the isolating switching element disconnects the first sub-network (galvanically) from the separates the second sub-network, connects the event-relevant consumer (directly, electrically conductively) to the second sub-network, in particular without involving the separating switching element.
- the changeover switching element when there is an opening event (which is not based on a malfunction in the first sub-network) and/or when the isolating switching element disconnects the first sub-network (galvanically) from the separates the second sub-network, connects the event-relevant consumer (directly, electrically conductively) to the second sub-network, in particular without involving the separating switching element.
- the vehicle electrical system can include a control unit which is designed to selectively couple the changeover switching element to the first sub-network or to the second sub-network, in particular without involving the isolating switching element, depending on a switching state of the isolating switching element.
- control unit can be set up to cause the changeover switching element to couple the event-relevant consumer (galvanically and/or electrically conductive) to the first sub-network when the isolating switching element is closed and thus the first sub-network to the second sub-network is (electrically conductive) coupled, and/or to cause the changeover switching element to couple the event-relevant consumer (galvanically and/or electrically conductive) to the second sub-network when the isolating switching element is open and thus the first sub-network ( galvanically) is decoupled from the second sub-network. So operation of the event-relevant consumer can be made possible in a particularly reliable manner in a manner that is cost-efficient and space-efficient.
- the control unit may be configured to determine that there is an opening event (in particular an opening event that is not due to a malfunction in the first sub-network).
- exemplary opening events are a vehicle break-in or a vehicle parking state (in which the vehicle is parked).
- the control unit can also be set up, in response to the detected opening event (in particular in response to the detected opening event that is not based on a malfunction in the first sub-network), to cause the isolating switching element to be opened in order to cause the first sub-network to be (galvanically) decoupled from the second sub-network, and/or cause the changeover switching element to (galvanically) decouple the event-relevant load from the first sub-network and (galvanically) couple it to the second sub-network .
- the control unit can be set up to cause the isolating switching element to be closed in order to cause the first sub-network (galvanically and/or electrically conductive) to connect to the second part network-coupled, and/or to cause the changeover switching element to couple the event-relevant consumer, in particular directly, without involving the isolating switching element (galvanically and/or electrically conductively) to the first sub-network and in particular only indirectly via the Separating switching element (galvanically and / or electrically conductive) coupled to the second sub-network.
- the control unit can be set up to determine whether the isolating switching element was opened due to an error or due to a malfunction, in particular due to a short circuit, in the first sub-grid and/or whether the isolating switching element was opened due to a predefined Operating condition, in particular due to a parking condition or an accident condition, the vehicle (and thus not due to a malfunction in the first sub-network) was opened.
- control unit can be set up to determine whether an opening event is occurring that is not based on a malfunction in the first sub-network, or whether there is an opening event that is based on a malfunction in the first sub-network. In both cases, the isolating switching element can be opened.
- control unit can be set up to cause, in particular only to cause, that the changeover switching element decouples the event-relevant consumer from the first sub-network and couples it to the second sub-network when there is an opening event that is not due to a malfunction in the first subnet is based.
- the control unit can also be set up to cause the changeover switching element to continue to couple the event-relevant load to the first sub-network and not couple it to the second sub-network when there is an opening event that is based on a malfunction in the first sub-network .
- a (road) motor vehicle in particular a passenger car or a truck or a bus or a motorcycle
- vehicle electrical system described in this document.
- a method for operating an on-board electrical system includes determining that there is an open event.
- the method further includes, in response to the determining, causing the isolation switching element to open to (galvanically) decouple the first sub-grid from the second sub-grid, and causing the toggle switching element to switch the event-related Consumers (galvanically and / or electrically conductive) coupled to the second sub-network.
- the method may further include determining that there is an opening event based on a malfunction in the first sub-grid, in particular on a voltage in the first sub-grid being below a voltage threshold and/or on a current in the first sub-network, which is above a current threshold value.
- the disconnect switching element may be caused to open to decouple the first sub-network from the second sub-network, and the toggle switching element may be caused to continue to couple the event-relevant load to the first sub-network.
- the reliability of the operation of the vehicle electrical system can be further increased.
- SW software program
- the SW program can be set up to run on a processor (e.g. on a control unit of a vehicle) and thereby to carry out the method described in this document.
- a storage medium can comprise a SW program which is set up to be executed on a processor and thereby to carry out the method described in this document.
- FIG. 1a shows an exemplary on-board electrical system for a vehicle with a number of sub-networks
- FIG. 1b shows the vehicle electrical system from FIG. 1a with an event-relevant electrical consumer
- FIG. 2 shows an on-board electrical system with a changeover switching element
- FIG. 3 shows a flowchart of an exemplary method for operating an on-board electrical system.
- FIG. 1 shows an exemplary on-board electrical system 100 for supplying the electrical consumers of a vehicle.
- the vehicle electrical system 100 is designed, electrical consumers 112, 122 with different safety and / or integrity requirements with electrical energy. Examples of consumers 112, 122 are
- a safety-relevant consumer 122 which, for example, must or does meet specific integrity requirements, in particular a specific ASIL level;
- the on-board electrical system 100 can have a number of sub-networks 110,
- vehicle electrical system 100 can have a first sub-network 110 for one or more non-safety-relevant (first) loads 112 and a second sub-network 120 for one or more safety-relevant (second) loads 122 .
- Each of the sub-grids 110, 120 can have its own energy source 111, 121 (e.g. an electrochemical energy store and/or a voltage converter), which is designed to provide electrical energy in the respective sub-grid 110, 120.
- the first sub-grid 110 may include a first energy source 111 (e.g. a voltage converter that is set up to provide electrical energy from another on-board power supply of the vehicle) and the second sub-grid 120 may include a second energy source 121 (e.g. an energy store).
- the first energy source 111 can be designed to provide a higher amount of electrical energy and/or a higher electrical output than the second energy source 121.
- the two sub-networks 110, 120 can have a separating element or a separating switching element 101, for example a relay and/or a semiconductor-based Switching element, be electrically connected to each other.
- a separating element or a separating switching element 101 for example a relay and/or a semiconductor-based Switching element
- a control unit 150 can cause the separating element 101 to be opened in order to avoid an effect of the first sub-grid 110 on the one or more safety-relevant (second) consumers 122 of the second sub-grid 120 to avoid.
- the vehicle electrical system 100 can thus be designed to provide a safe electrical energy supply for safety-relevant vehicle functions, such as for a steering, a brake, a light and/or a wiper, so that even after a fault has occurred (e.g. after a fault in the power supply).
- safety-relevant consumers 122 continue to be provided with electrical energy.
- This can be achieved using a vehicle electrical system architecture in which a second partial vehicle electrical system 120 with a qualification for functional safety can be separated from a first partial vehicle electrical system 110 with QM qualification via a circuit breaker 101 .
- Each of these sub-board networks 110, 120 typically has a power distribution via one or more (possibly electronic) power distributors, which further branch and distribute the integrity (QM or ASIL) provided in each case.
- QM integrity
- the generator 111 in the first sub-network 110 e.g. a converter for providing electrical energy from a 48V or HV (high-voltage) vehicle electrical system
- equalizing currents typically flow via the (closed) isolating element 101 to supply the one or more loads 122 in the second sub-grid 120. If necessary, relatively large currents can flow through the isolating element to charge the battery 121 in the second sub-grid 120 and/or for short-term requirements 101 flow.
- an event-relevant consumer a consumer who does not have any special safety and/or integrity requirements for the energy supply (who, for example, only has to meet QM requirements), but who also after an opening event in which the separating element 101 was opened, within the second Sub-network 120 should or must be supplied with electrical energy, referred to as an event-relevant consumer.
- FIG. 1b shows a vehicle electrical system 100 with an example of an event-relevant consumer 132 which is connected to the second sub-network 120 via a second isolating element 131 .
- the second separating element 131 satisfies the safety and/or integrity requirements (for example a specific ASIL level) of the second sub-network 120. This makes it possible to securely connect a QM consumer 132 to the second sub-network 120.
- the architecture shown in FIG. 1b results in the electrical power for the event-relevant consumer 132 being routed via the first isolating element 101 in normal operation, so that the first isolating element 101 must be designed to be correspondingly powerful.
- the first separating element 101 must then be designed for the power requirements of all sub-functions of the event-relevant consumer 132.
- FIG. 2 shows a vehicle electrical system 100 with an event-relevant consumer 132, which can be optionally connected to the first sub-network 110 or to the second sub-network 120 via a changeover element (in particular via a changeover switching element).
- the interchangeable element 201 is arranged parallel to the (first) separating element 101 so that the electrical energy for supplying the event-relevant consumer 132 does not have to be routed via the (first) separating element 101 .
- the control unit 150 of the vehicle electrical system 100 can be set up to cause the event-relevant consumer 132 to be connected to the first sub-grid 110 via the changeable element 201 in normal operation, so that the electrical energy for the operation of the event-relevant consumer 132 ( possibly exclusively and/or directly) from the first sub-network 110.
- control unit 150 can be set up, in response to a recognized opening event in which the separating element 101 is opened in order to decouple the second sub-network 120 from the first sub-network 110, to cause the change element 201 to relevant consumer 132 to couple to the second sub-network 120 (and thus to decouple from the first sub-network 110). It can thus be efficiently achieved that the event-relevant consumer 132 in the event of an opening event (such as after an accident) is safely (possibly exclusively and/or directly) supplied with electrical energy from the second sub-grid 120 in order to Event-relevant sub-function of the event-relevant consumer 132 to provide.
- a vehicle electrical system 100 is thus described in which one or more components 132 that do not place any safety requirements on the vehicle electrical system (e.g. that are only designed according to QM), but are still in one or more states when the separating element 101 is open from the battery side and/or must be supplied from the second sub-grid 120, via a changeover relay 201 (generally via a change-over element) need-controlled and dynamically assigned to the converter side or the first sub-grid 110 or the battery side or the second sub-grid 120.
- a changeover relay 201 generally via a change-over element
- the one or more components 132 supplied via the changeover element 201 in the normal case (e.g. when the vehicle is active, for example during the “living” or “driving” state) in the first sub-network 110 via the generator 111 (e.g. via a DC converter or via a generator) and only to be assigned to the second sub-network 120 with the source 121 via the alternating element 201 if required (e.g. during the “parking” or “crash” state).
- the one or more event-relevant components 132 typically have a lower power requirement for these special cases (parking, crash) than in a normal case.
- the vehicle electrical system architecture shown in FIG. 2 makes it possible to dimension the separating element 101 relatively small and thus in a cost-effective and space-efficient manner.
- a door control device (for example for the front and rear right doors) is an example of an event-relevant consumer 132.
- the door control device can have a relatively high maximum current consumption, for example as the armrest heaters in the doors are also supplied via the door control unit (e.g. with 15A each). Since a heater is a permanent consumer, the separating element 101 would have to be designed to be correspondingly large and/or powerful without using a changeover switch 201, because these permanent currents would have to be routed via the separating element 101 (as shown in FIG. 1b).
- the door control unit is typically a post-crash relevant component and must therefore be located on the battery side (i.e. in the second sub-network 120) in order to be able to execute the “door unlock” function after a crash. However, the function of the armrest heating is no longer required after a crash. If the changeover switch 201 is used, it is possible to leave the high continuous currents directly in the first partial vehicle electrical system 110 on the converter side and not to route them via the main isolating switch 101 .
- FIG. 3 shows a flowchart of an exemplary (possibly computer-implemented) method 300 for operating an electrical vehicle electrical system 100.
- Method 300 can be executed by a control unit 150 of vehicle electrical system 100 and/or a vehicle.
- Vehicle electrical system 100 includes a first sub-network 110 with a first energy source 111 and/or with one or more first electrical consumers 112.
- First sub-network 110 can, for example, only be designed according to QM and/or not according to a specific ASIL level.
- the vehicle electrical system 100 also includes a second sub-network 120 with a second energy source 121 (eg an energy store) and/or with one or more second electrical consumers 122.
- the second sub-network 120 can be designed according to a specific ASIL level, for example.
- the vehicle electrical system 100 includes an isolating switching element 101 which is designed to isolate the first sub-system 110 from the second sub-system 120 .
- the isolating switching element 101 can be designed according to the specific ASIL level.
- vehicle electrical system 100 includes at least one event-relevant electrical consumer 132 (which, for example, is only designed according to QM and/or not according to the specific ASIL level), and a changeover switching element 201 that is designed to address event-relevant consumer 132 to couple the isolating switching element 101 over and/or without incorporating the isolating switching element 101 selectively to the first sub-network 110 or to the second sub-network 120.
- the changeover switching element 201 can be designed according to the specific ASIL level.
- the method 300 includes determining 301 that an opening event (e.g., an accident or a parked vehicle condition) is present.
- the opening event can be detected, for example, on the basis of a signal on a data BUS in the vehicle.
- the method 300 comprises in response to the determination 301, causing 302 that the disconnect switching element 101 is opened to decouple the first sub-network 110 (galvanically) from the second sub-network 120, and causing 303 that the change -Switching element 201 couples the event-relevant consumer 132 to the second sub-network 120.
- a vehicle electrical system 100 that is efficient in terms of costs and installation space can be provided and operated.
- step 301 it can be determined (step 301) that an opening event is present that is not based on a fault (eg on an undervoltage, on an overload and/or on a short circuit) in the first sub-grid 110 .
- Reassigning the event-relevant consumer 132 from the first sub-network 110 to the second sub-network 120 by the changeover switching element 201 (step 303) can only take place if there is an opening event that is not due to an error in the first Subnet 110 is based.
- the reassignment can possibly only take place when the vehicle electrical system 100 , in particular the first sub-system 110 , is operating correctly.
- the event-relevant consumer 132 which may be the Error cause for the error in the first sub-network 110 is an error in the second sub-network 120 causes. It can thus be avoided in a reliable manner that the integrity of the second sub-network 120 is impaired by the consumer 132 relevant to the event.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Small-Scale Networks (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN202280013403.2A CN116829417A (zh) | 2021-02-19 | 2022-02-11 | 车载电网和用于运行车载电网的方法 |
US18/277,313 US20240132004A1 (en) | 2021-02-19 | 2022-02-11 | On-Board Electrical System, and Method for Operating an On-Board Electrical System |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102021103954.1A DE102021103954A1 (de) | 2021-02-19 | 2021-02-19 | Bordnetz und Verfahren zum Betrieb eines Bordnetzes |
DE102021103954.1 | 2021-02-19 |
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WO2022175181A1 true WO2022175181A1 (de) | 2022-08-25 |
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PCT/EP2022/053383 WO2022175181A1 (de) | 2021-02-19 | 2022-02-11 | Bordnetz und verfahren zum betrieb eines bordnetzes |
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US (1) | US20240132004A1 (de) |
CN (1) | CN116829417A (de) |
DE (1) | DE102021103954A1 (de) |
WO (1) | WO2022175181A1 (de) |
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- 2021-02-19 DE DE102021103954.1A patent/DE102021103954A1/de active Pending
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- 2022-02-11 CN CN202280013403.2A patent/CN116829417A/zh active Pending
- 2022-02-11 US US18/277,313 patent/US20240132004A1/en active Pending
- 2022-02-11 WO PCT/EP2022/053383 patent/WO2022175181A1/de active Application Filing
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US20240132004A1 (en) | 2024-04-25 |
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