EP3881507A1 - Steuergerätearchitektur für fahrzeuge - Google Patents
Steuergerätearchitektur für fahrzeugeInfo
- Publication number
- EP3881507A1 EP3881507A1 EP19801860.8A EP19801860A EP3881507A1 EP 3881507 A1 EP3881507 A1 EP 3881507A1 EP 19801860 A EP19801860 A EP 19801860A EP 3881507 A1 EP3881507 A1 EP 3881507A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- data packet
- interface controller
- data
- control device
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40078—Bus configuration
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/34—Circuit design for reconfigurable circuits, e.g. field programmable gate arrays [FPGA] or programmable logic devices [PLD]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
- H04L63/101—Access control lists [ACL]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/10—Integrity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9042—Separate storage for different parts of the packet, e.g. header and payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9057—Arrangements for supporting packet reassembly or resequencing
Definitions
- the invention relates to a control unit architecture in which a communication link between at least two
- Control devices especially in a vehicle, takes place.
- the invention further relates to a method for
- Control devices in a vehicle have an increasing number
- Transmission media e.g. Fieldbuses no longer have the bandwidth required for this and are therefore increasingly supplemented by other, sometimes faster, communication connections, transmission media and / or transmission protocols.
- the existing ones e.g. Fieldbuses no longer have the bandwidth required for this and are therefore increasingly supplemented by other, sometimes faster, communication connections, transmission media and / or transmission protocols.
- Transmission media continue to be used, e.g. for security reasons or for existing methods and / or devices, e.g. for testing and / or debugging.
- One aspect of the invention relates to a method for
- Delivery strategy includes at least one of the following actions:
- the first and second interface controllers are arranged in a vehicle.
- the vehicle is
- a motor vehicle such as a car, bus or truck, or else a rail vehicle, a ship, an aircraft, such as a helicopter or plane.
- the first interface controller can be connected, for example, to a communication link or to a transmission medium.
- the communication link can be, for example, wireless and / or wired transmission protocols, for example Ethernet protocols, LTE protocols (long-term evolution and / or long-term evolution advanced) and / or so-called 5G protocols. With these protocols, the data to be transmitted are converted into data packets with fixed or
- the first interface controller is set up to receive such a data packet
- the data packet can be saved
- ⁇ in particular can be stored temporarily, for example in a receive buffer.
- the data packet is transmitted to at least one second interface controller. It may be the case that not every data packet is transmitted to exactly one second interface controller. Some of the data packets can e.g. be discarded. Some of the data packets can e.g. be transmitted to more than one second interface controller; this can also be called multicast or broadcast.
- the second interface controller can use the same protocol as the first interface controller. It can also use the same protocol type as the first interface controller, but a different speed; so the first one
- Interface controller e.g. use a 1000BASE-T1 protocol and the second interface controller 100BASE-T1.
- the second interface controller can also be a "traditional"
- Use vehicle bus such as CAN bus or one of its successors.
- the use of a "traditional" vehicle bus can be particularly advantageous because it may also be possible to use components that have been developed and / or manufactured for these "traditional" vehicle buses, and these components to newer and / or connect faster communication connections.
- the data packet is analyzed using a data analyzer. For example, the header, length and / or content of the data packet and / or the frequency of the data stream, ie the number of packets per time unit, can be analyzed. It can contain information from several protocol layers
- MAC address e.g. a MAC address and / or the number of a virtual channel as used by certain protocols
- the data packet can also be assigned to a certain type of data.
- Examples of a data type can be: control information for the vehicle and / or an actuator, control information for a device such as a telephone, raw sensor data, infotainment data, audio data, video data.
- control information for the vehicle and / or an actuator can be: control information for the vehicle and / or an actuator, control information for a device such as a telephone, raw sensor data, infotainment data, audio data, video data.
- the data flow on the communication link of the first interface controller can also be taken into account, e.g. the
- the transmission strategy for the data packet is determined from the analysis of the data packet.
- the delivery strategy can include one or more actions. The actions can be carried out as a single action, as a parallel action and / or as a serial action. The execution of a
- Action can depend on the execution of another action.
- the action can relate to the same data packet or also include other data packets, e.g.
- One of the actions can be to discard the data packet.
- the Discarding can also be done depending on the data type. For example, all data packets that come from a device with an unknown MAC address can be discarded. For example, a maximum number of packets per time unit can also be defined for a specific data type and all packets that exceed the maximum number can be discarded. The maximum number can also be defined depending on a specific sender.
- DoS Denial of Service
- One of the actions can be to send the data packet to at least one of the second interface controllers. This can e.g. then happen when the latency of the transfer
- Sending can take place without further treatment of the data packet, for example. If e.g. it is necessary that the incoming data arrive with high security, then e.g. all filters are deactivated and fast forwarding is enabled. This state could be based on the configuration or also on the basis of the received data (e.g. special
- Sending to at least one of the second interface controllers can depend, for example, on the data type of the data packet.
- Other properties from the Data packet derived and / or assigned to the data packet can be a priority which the data packet has, for example in a part of the header, or which is assigned to the data packet, for example on the basis of its data type.
- sensor data can be assigned a higher priority than, for example, music data.
- Sending to at least one of the second interface controllers can include sending to a predefined set of second interface controllers or sending to all second interface controllers; this can also be called multicast or broadcast. This can emulate protocols of the first interface controller that support multicast or broadcast.
- One of the actions can be to send the data packet to at least one of the buffer stores. This can e.g. happen in order to collect the data of several data packets - and first to send them to one of the second interface controllers - and thus to reduce the data traffic to the selected second interface controller.
- One of the actions can be to fragment the data packet and send the fragmented data packet to at least one buffer memory.
- Large data packets, for example, which exceed the protocol and / or the input buffers of the second interface controller can thus be sent to the corresponding devices without these devices having to make design changes. This enables devices to be used and / or reused in later generations of a vehicle without great adaptation effort have been extensively tested and / or are in favor of this
- One of the actions can be to send the at least one buffer memory to at least one of the second interface controllers. This can take place, for example, after the fragmentation and / or the collection of data in this buffer memory. This can be a multicast or
- the transmission strategy for the data packet is carried out.
- decouple This can be used, for example, to reduce the number of interrupts and / or the protocol overhead for the second interface controller.
- the numerous interrupts could have the effect, at least with some control units, that the CPU of the control units is informed about every incoming frame and thus ongoing tasks could be interrupted. This could sometimes lead to Ethernet frames being discarded and / or paused tasks not being processed in time. Avoiding this is particularly with regard to a
- Another aspect of the invention relates to a method for transmitting a data packet from at least one second interface controller to a first interface controller, comprising the steps:
- Delivery strategy includes at least one of the following actions:
- Buffer memory (131, 132), and / or
- Fragment the data packet (500) and send it to at least one of the buffer memories (131, 132), and / or
- the transmission of a data packet from at least a second interface controller to a first interface controller can also be understood as an “inverse operation” for the transmission of a data packet from a first interface controller to at least a second interface controller.
- These two operations can be combined with one another in such a way that they can be understood as supplementary and / or as bidirectional operations
- the delivery strategy further comprises at least one of the following actions:
- the characterization can include the determination of a data type.
- Priority can be assigned depending on the type of data.
- the priority of the data can influence actions
- Priority can be emptied faster or data with higher priority can e.g. do not use buffers
- the maximum load can be the load on the communication link of the first interface controller and / or the second
- the maximum load can e.g. a maximum number of packets per time unit can also be defined for a specific data type and all packets which exceed the maximum number can be discarded.
- the maximum number can also be defined depending on a specific sender.
- the transmission strategy is at least partially shown in a table.
- the table can include, for example: the characterization for the data packet, assignment to one of the buffer memories and / or to one of the second interface controllers, elements of a white list for the data packet, the priority for the data packet, the maximum load for the data packet.
- the table is designed as an associative memory.
- the characterization can be used as a key for the associative memory.
- Other keys e.g. compound keys or only part of the characterization.
- An associative memory can allow a faster determination of the delivery strategy.
- the delivery strategy further includes the following action:
- the delivery strategy further includes the following action:
- Communication can be further increased. In particular, it can be used to identify at least certain types of attacks
- the first interface controller supports an Ethernet protocol and the second interface controller supports a parallel bus protocol, a serial bus protocol and / or an Ethernet protocol.
- a wide range of applications e.g. can be achieved on different communication connections, transmission media and / or transmission protocols.
- the method also has a further first interface controller, the further first interface controller supporting the same protocol as the first interface controller.
- This can be particularly the case with communication connections with bus topology, e.g. Ethernet, can be used to increase performance and / or reliability.
- the further first interface controller is used as a redundant first interface controller.
- the same data can be repeated several times - e.g.
- twice - can be read using several first interface controllers. This can e.g. used to be a
- the redundancy strategy can, for example, check each other of the read data, e.g. by comparing the data, including switching off faulty controllers and others
- Another aspect of the invention relates to a control device for transmitting a data packet from a first
- Interface controller to at least one second interface Controller and / or for transmitting a data packet from at least one second interface controller to a first one
- Interface controller comprising the control unit:
- At least one second interface controller is at least one second interface controller.
- the control unit is set up to carry out a method as explained above and / or in the examples.
- the control unit has a number of advantages. So a change to new microcontrollers is due to one
- Ethernet modules in the vehicle possible without major changes. At least some platform developments can be continued despite the lack of original protocol support, since only the control unit, as additional hardware, has to be connected upstream of the controller.
- the upstream Ethernet hardware can adapt the communication data based on the data received from the microcontroller.
- adapting means i.a. duplicate, eliminate, change addresses and / or check.
- Ethernet-based communication a gain in performance, but also a gain in functionality, through the use of Ethernet-based communication can be used.
- some Ethernet-based protocols can use one
- the control unit can send uncompressed data
- control unit and / or the one described Procedures can significantly lower hardware resources
- Implementations are implemented. Furthermore, the security level can be increased significantly in some cases
- Embodiments can do this without leading to higher manufacturing costs for the network or for devices connected to it.
- Another advantage of this control unit is that an existing hardware does not have to be changed, but the existing hardware can continue to be used.
- the control device and / or the method can be in one
- the quality of execution of software-based applications can be increased, in particular with better protection in terms of safety and security.
- the network system according to the invention is improved in terms of cost and reliability.
- the integration of the Ethernet hardware in the ECU can further increase the system's reliability.
- the security of a vehicle network can advantageously be increased significantly and very simply by the invention, in particular with reduced financial resources
- the invention offers a transparent one
- Another advantage of this invention is that the current hardware does not have to be changed, but the existing hardware can continue to be used. This can lead to largely platform-independent solutions. This means that at least partial compatibility with new protocols such as AVB (Audio Video Bridging) and TSN (Time Sensitive
- Networking can be achieved.
- the process can be integrated into an existing network without damaging existing devices.
- the controller is implemented as an ASIC or as an FPGA. This enables the control unit to be e.g. with a
- a further aspect of the invention relates to a control system for transmitting a data packet from a first interface controller to at least one second interface controller and / or for transmitting a data packet from at least one second interface controller to a first interface controller, the control system having :
- control unit for this purpose
- control unit for this purpose
- Another aspect of the invention relates to the use of a method, a control device or a control system as described above and / or in the figures for transmitting a data packet between controller modules in a vehicle.
- Another aspect of the invention relates to a vehicle with a control device or a control system as described above and / or in the figures.
- the invention can be used outside of a vehicle e.g. be used in the area of embedded systems.
- High security requirements, low computing power and slow platform cycles are examples of such areas of application.
- the hardware can be defined for a function that provides filter functions.
- the filters e.g. data parameters, time unit, validity period
- the hardware is transferred to the hardware and actions are defined, which should take action when the filter is violated, such as Discard the data, discard all data from the problem, save the data, etc.
- the invention has functions for merging or duplicating data.
- the controller reports data stream patterns (IDs) to the system on the basis of which it is to be fused, eliminated or duplicated.
- IDs data stream patterns
- the messages can dynamically address the requirements / capacities of the controller should be adjusted. For example, the maximum
- the packet size and the frequency of the data ultimately determine the interrupt load of the controller. Based on this knowledge, the package size in the unit is then adapted to the requirement. Meet, for example, very large ones
- the hardware can be set so that it is only used from a predefined permissible latency.
- the hardware can be activated automatically if, for example, security protocols are recognized or requirements are recognized (header analysis of the Ethernet hardware). In this case, the hardware can possibly act autonomously and work with filters predefined for these protocols. Feedback on activation can then be sent to the controller via the separate control channel. In one embodiment, the hardware can react to changes in the data load and also report this back via the control channel. If the load increases per unit of time, it can be reacted to slowly and preparatively and this can also be reported to the controller.
- FIG. 2 shows a schematic representation of a control device according to a further embodiment of the present invention.
- Fig. 4 a schematic representation of part of a
- FIG. 5 shows a schematic illustration of a controller in a vehicle according to an embodiment of the present invention
- FIG. 6 shows a schematic representation of a communication with many communication connections according to an embodiment of the present invention
- Fig. 7 a schematic representation of a large
- Fig. 8 a schematic representation of many data per
- Fig. 9 a schematic representation of a first and
- FIG. 11 shows a schematic illustration of an embodiment of the present invention
- 16 shows a schematic illustration of an embodiment of the present invention.
- the control device 100 has a first interface controller 110, which is connected to an Ethernet connection 420.
- the ethernet connection 420 is with an ethernet line 400 connected.
- Ethernet line 400 may be part of a vehicle communication system.
- the first interface controller 110 is connected to a data analyzer 120, which is set up to determine a transmission strategy for a data packet 500 (see FIG. 3).
- Transmission strategy can e.g. include that the data packet 500 is discarded. This can e.g. in the event of an overload on the Ethernet connection 400, 420, or if the data packet 500 is not permitted for the first interface controller 110, for example on the basis of a whitelist of the MAC addresses.
- the data analyzer 120 is in this
- Embodiment connected to a configuration module 200.
- the configuration module 200 can configure the data analyzer 120 via the interface 220.
- the data analyzer 120 can also send data to the configuration module 200; this can e.g. include a simple "acknowledge" for the receipt of the data, but also data which the
- the data analyzer 120 is still one
- Logging module 250 connected, which records at least parts of the data packets 500. This can e.g. to
- the data packet 500 can, for example, be sent directly to a vehicle controller 330. This is indicated by the dashed buffer memory 139; this buffer memory 139 can either be very small (for example contain only one entry) or can also be omitted, so that a direct and thus fast transmission to the second interface controller 303 can take place.
- the data packet 500 can be sent to the buffer memory 131 and / or 132, for example. If the data packet 500 is sent to more than one buffer memory, this can be the case
- the buffer memory (s) 131, 132 can, via one of the second interface controllers 301, 302, 303, be connected to one of the
- Vehicle controllers 310, 320, 330 can be sent. 1 shows a direct assignment of the second interface controllers 301, 302, 303 to the vehicle controllers 310, 320, 330. In another embodiment, a different mapping can be implemented, e.g. The second interface controller 302 may send to both the vehicle controller 310 and the vehicle controller 320 (not shown). In another embodiment e.g. the vehicle controller 330 receives data from both second interface controllers 301 and 302 (not shown).
- the connection between the second interface controllers 301, 302, 303 and the vehicle controller 310, 320, 330 each includes the data connections 311, 321, 331 and the interrupt connections 312, 322, 332. This depends on the Selection of the connection protocol between the second interface controllers and the vehicle controllers. With some protocols, the interrupt connections can be omitted.
- FIG. 2 shows a schematic illustration of a control device 100 according to a further embodiment of the present invention.
- Components with the same reference signs as in FIG. 1 have the same or an analog function.
- the buffers 131, 132 send in Opposite direction as in FIG. 1.
- This embodiment shown in FIG. 2 can be used, for example, to transfer data from one of the vehicle controllers 310, 320, 330 to the
- the data analyzer 120 in this embodiment does not control and / or influence the first interface controller 110, but rather the second interface controller 301, 302, 303.
- the data analyzer 120 can have several control the components of control unit 100, e.g. also the first interface controller 110.
- FIG 3 shows a schematic illustration of a data packet 500 according to a further embodiment of the present invention.
- the header 510 and the data part 520 of the data packet 500 are clearly recognizable.
- the data packet 500 has an overall length 501.
- the data part 520 has a data length 521.
- the transmission strategy of the data analyzer 120 can be influenced by entries in the header 510 and / or in the data part 520 and / or by the lengths 501 and / or 521.
- Fig. 4 shows a schematic representation of part of a table 550 according to another embodiment of the vorlie invention.
- the table has lines 551, 552, 553, 554.
- Characterization 560 may include determining a data type. Examples of a data type can be: control information for the vehicle and / or an actuator, control information for a device such as a
- the characterization 560 can also be used as a key for an associative memory, for example.
- the assignment 561 can be an assignment to one of the buffers and / or to one of the second interface controllers. One, several or none of the buffer memories and / or one of the second interface controllers can be addressed.
- the entry "0" can be provided if, for example, a data packet 500 with a predefined data type 560 is to be discarded in any case.
- the assignment 561 can, for example, be used advantageously if video data and telephone data are quickly sorted and sorted, for example
- the whitelist 562 may include certain allowable addresses, e.g. MAC addresses or features of higher protocol layers. Whitelist 562 may be empty.
- the priority 563 can be assigned, for example, on the basis of a characterization 560 or can also be predetermined, for example by a definition in the configuration module 200 (see FIGS. 1 and 2). For example, sensor data can be assigned a higher priority than, for example, music data. Depending on this, predefined types of data can be treated preferentially.
- the maximum load 564 can relate, for example, to the communication medium of the first interface controller 110. It can be defined, for example, from which maximum load a particular data packet 500 is rejected or rejected.
- FIG. 5 shows a schematic illustration of a controller 310, 320, 330 in a vehicle according to an embodiment of the present invention.
- the controller has a first interface controller 110, which is directly connected to a second interface controller 301, 302, 303 and a vehicle controller 310, 320, 330.
- Fig. 6 shows a schematic representation of a
- Fig. 7 shows a schematic representation of a large one
- Fig. 8 shows a schematic representation of many data packets 500 per unit time on one
- Communication link 400 may exceed the maximum capacity for some of the interface controllers 110. This can be triggered, for example, by a so-called DoS attack.
- 9 shows a schematic illustration of a first 110 and a second 301, 302, 303 interface controller according to an embodiment of the present invention.
- the CPU is informed of every incoming frame and can therefore interrupt ongoing tasks. Ethernet frames can possibly be discarded, and paused tasks cannot be processed on time.
- Ethernet can send data via unicast as well as multicast and broadcast. This addressing is sometimes not fixed because switches can change the recipient address in the event of an error. For example, if a receiver is no longer reachable, the switch may be able to send a unicast-addressed data stream to all controllers
- Multicast and broadcast communication cannot generally be avoided because otherwise protocols such as ARP (Address Resolution Protocol) or IEEE 802.1AS could no longer work.
- ARP Address Resolution Protocol
- IEEE 802.1AS IEEE 802.1AS
- Ethernet and IP in the vehicle can be improved by the described methods and / or devices.
- the type of communication (client / server) that Ethernet brings with it may be new for at least some vehicles.
- Ethernet communication and / or specifications of newer vehicle controllers can lead to high bus utilization.
- so-called network cards can be used, for example.
- the controller and the transceiver are integrated on a separate system and thus decoupled from the main system.
- 10 shows a schematic representation of an embodiment of the present invention.
- a control device 100 is inserted between the connection, for example an Ethernet connection.
- the vehicle controller 310, 320, 330 e.g. a microcontroller (yC) or microprocessor (mR) or a system on chip (SoC), a hardware with Ethernet interfaces is transparently connected upstream.
- transparent means that there is no need to convert the protocol or that the hardware can also be displayed almost invisibly for the application.
- the hardware can e.g. two
- Embodiment offer the same speed as that of the yC.
- the additional component offers a fast configuration interface 220, which is not routed via Ethernet.
- the hardware can be connected to the yC (or the PHY) either on the board (onboard) or by a cable.
- the hardware does not necessarily have to be placed on the same board. It may be useful to provide a separate configuration line 220.
- the additional hardware can e.g. as a
- the additional hardware can also be implemented as an ASIC, for example with memory and two Ethernet interfaces - in the ASIC or outside.
- the hardware can, for example, as a such ASIC incl. Register and 2 Ethernet PHYs must be set up.
- Fig. 11 shows a schematic representation of a
- Embodiment of the present invention Addressing that is transparent in some respects (since neither ECU1 nor ECU2 see an address of this component, neither as recipient nor as sender) may be possible. This is shown schematically in FIG. 11 by a bidirectional arrow 115. This can become possible if the additional hardware is no longer addressed and / or should be addressed. This means that it does not work on Layer 2, but on the outside only on the physical layer.
- Fig. 12 shows a schematic representation of a
- Embodiment of the present invention This is an embodiment in which the hardware mediates between two different speeds.
- Microcontrollers are compensated and this concept find more application.
- the hardware can also be equipped with additional memory in order to
- Embodiment of the present invention No priority 563 is assigned, so that data streams 116 and 117 have the same priority.
- 14 shows a schematic representation of an embodiment of the present invention.
- the data streams 116 and 117 and the software can be assigned new priorities 563.
- data stream 117 has a higher priority than data stream 117. This can be used, for example, to prioritize control data of the vehicle that arrive as data stream 117 over an infotainment data stream 116.
- the invention allows through the upstream hardware, regardless of
- This hardware could then be dynamic, e.g. by means of the
- the "Config" interface 220 can also be implemented as a bus or network.
- Two interfaces 110, 112 are arranged on a conventional controller, via which data streams 116 and 117 are conducted. These data streams can be operated or configured redundantly, for example.
- Embodiment of the present invention are on a conventional controller, two interfaces 110, 112 are arranged, via which data streams 116 and 117 are routed. These data streams can be operated or configured redundantly, for example.
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Abstract
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102018219246.4A DE102018219246A1 (de) | 2018-11-12 | 2018-11-12 | Steuergerätearchitektur für Fahrzeuge |
PCT/EP2019/080819 WO2020099298A1 (de) | 2018-11-12 | 2019-11-11 | Steuergerätearchitektur für fahrzeuge |
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EP3881507A1 true EP3881507A1 (de) | 2021-09-22 |
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EP19801860.8A Pending EP3881507A1 (de) | 2018-11-12 | 2019-11-11 | Steuergerätearchitektur für fahrzeuge |
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US (1) | US11902048B2 (de) |
EP (1) | EP3881507A1 (de) |
CN (1) | CN112997457A (de) |
DE (1) | DE102018219246A1 (de) |
WO (1) | WO2020099298A1 (de) |
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DE102022210908A1 (de) | 2022-10-14 | 2024-04-25 | Elmos Semiconductor Se | Gateway zur verbindung mit einem sensor eines kraftahrzeugs und verfahren zum betreiben des gateways |
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Publication number | Priority date | Publication date | Assignee | Title |
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US6791947B2 (en) * | 1996-12-16 | 2004-09-14 | Juniper Networks | In-line packet processing |
US7042891B2 (en) * | 2001-01-04 | 2006-05-09 | Nishan Systems, Inc. | Dynamic selection of lowest latency path in a network switch |
JP4591745B2 (ja) * | 2003-12-02 | 2010-12-01 | 富士ゼロックス株式会社 | 画像形成装置、パターン形成方法及びそのプログラム |
US7444445B2 (en) * | 2006-07-30 | 2008-10-28 | International Business Machines Corporation | Selectively adjusting signal compensation parameters and data rate for transmission of data through a smart cable |
GB2470675B (en) * | 2008-06-09 | 2011-05-11 | Gnodal Ltd | Method of data delivery across a network |
CN105120496B (zh) * | 2009-11-06 | 2019-06-28 | 华为技术有限公司 | 负载控制方法和设备及通信系统 |
US8891527B2 (en) * | 2012-02-03 | 2014-11-18 | Gigamon Inc. | Systems and methods for packet filtering and switching |
US9606538B2 (en) * | 2013-03-14 | 2017-03-28 | Fts Computertechnik Gmbh | Device and method for the autonomous control of motor vehicles |
DE102013217259A1 (de) * | 2013-08-29 | 2015-03-05 | Bayerische Motoren Werke Aktiengesellschaft | Modusumschaltung eines Steuergeräts zwischen Diagnosebus und externer Ethernetverbindung |
JP6983519B2 (ja) | 2017-03-08 | 2021-12-17 | 株式会社東芝 | パケット集約装置及び伝送処理プログラム |
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2018
- 2018-11-12 DE DE102018219246.4A patent/DE102018219246A1/de active Pending
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2019
- 2019-11-11 US US17/291,140 patent/US11902048B2/en active Active
- 2019-11-11 WO PCT/EP2019/080819 patent/WO2020099298A1/de unknown
- 2019-11-11 EP EP19801860.8A patent/EP3881507A1/de active Pending
- 2019-11-11 CN CN201980073954.6A patent/CN112997457A/zh active Pending
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Publication number | Publication date |
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US20210392012A1 (en) | 2021-12-16 |
WO2020099298A1 (de) | 2020-05-22 |
DE102018219246A1 (de) | 2020-05-14 |
US11902048B2 (en) | 2024-02-13 |
CN112997457A (zh) | 2021-06-18 |
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