Electronic and electrical system, communication method, device, and vehicle

Abstract

An electronic and electrical system, a communication method, a device, and a vehicle. The electronic and electrical system comprises a plurality of devices and a backbone communication network; the plurality of devices include a first device (11), a second device (12), and a third device (13); the backbone communication network comprises a first communication link (101), a second communication link (102), a third communication link (103), and a fourth communication link (104); the first communication link (101) and the second communication link (102) are communicatively connected to the first device (11) and the second device (12); the third communication link (103) is communicatively connected to the third device (13) and the first device (11); and the fourth communication link (104) is communicatively connected to the third device (13) and the second device (12).

Description

Electronic and electrical system, communication method, device and vehicle

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 202410658114.9, filed on May 24, 2024, entitled "Electronic and electrical system, communication method, device and vehicle", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of vehicle, in particular to an electronic and electrical system, a communication method of the electronic and electrical system, a device and a vehicle. BACKGROUND

[0004] In recent years, the electrification, networking and intelligentization of automobiles are continuously deepening, the electronic and electrical architecture of automobiles is increasingly complex, and the amount of information communication between electronic and electrical components is growing exponentially. There are many ways of such information communication, for example, communication can be performed through Ethernet, CAN bus, CANFD bus, LIN bus, etc. Because of the complexity of automobile devices and the diversification of communication forms, a heterogeneous network communication redundancy architecture based on regional controllers must be designed to meet the requirements of vehicle communication.

[0005] In related technologies, the network topology architecture of the whole vehicle mainly takes the gateway as the control center, and then forms several functional domain backbone networks (such as chassis network, energy network, intelligent access network, etc.) according to the function division.

[0006] SUMMARY

[0007] One object of the present application is to provide an electronic and electrical system of a vehicle.

[0008] Another object of the present application is to provide a communication method.

[0009] Still another object of the present application is to provide a vehicle.

[0010] The electronic and electrical system of the vehicle according to the embodiments of the present application comprises a plurality of devices and a backbone communication network, the plurality of devices comprising a first device, a second device and a third device, the backbone communication network comprising a first communication link, a second communication link, a third communication link and a fourth communication link, the first communication link and the second communication link being communicatively connected to the first device and the second device, the third communication link being communicatively connected to the third device and the first device, and the fourth communication link being communicatively connected to the third device and the second device.

[0011] According to the electronic and electrical system of the vehicle of the embodiments of the present application, the communication among the first device, the second device and the third device can be realized by using the backbone communication network.

[0012] In addition, the electronic and electrical system of the vehicle according to the above-mentioned embodiments of the present application can further have the following additional technical features:

[0013] In some embodiments, the electronic and electrical system further comprises an inner trunk redundancy network, which is in communication connection with the first device, the second device and the third device.

[0014] In some embodiments, the electronic and electrical system further comprises an outer trunk redundancy network, the first device comprises a first sub-network having a first controller, and the outer trunk redundancy network is in communication connection with the first sub-network and the second device.

[0015] In some embodiments, the communication types of the first communication link, the second communication link, the third communication link and the fourth communication link are the same; or the communication types of at least two of the first communication link, the second communication link, the third communication link and the fourth communication link are different.

[0016] In some embodiments, the communication type of the first communication link is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or

[0017] the communication type of the second communication link is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or

[0018] the communication type of the third communication link is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or

[0019] the communication type of the fourth communication link is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication.

[0020] In some embodiments, the plurality of devices further comprises a fourth device, which is connected to the first communication link and located between the first device and the second device.

[0021] In some embodiments, the electronic and electrical system further comprises an inner trunk redundancy network, which is in communication connection with the first device, the second device, the third device and the fourth device.

[0022] In some embodiments, the electronic and electrical system further comprises an outer dry redundancy network, the first device comprises a first sub-network having a first controller, the fourth device comprises a fourth sub-network having a fourth controller, and the second device is communicatively connected to the first sub-network, the fourth sub-network, and the second device.

[0023] In some embodiments, the plurality of devices further comprises a fifth device, the fifth device is connected to the second communication link between the first device and the second device.

[0024] In some embodiments, the electronic and electrical system further comprises an inner dry redundancy network, the inner dry redundancy network communicatively connects the first device, the second device, the third device, the fourth device, and the fifth device.

[0025] In some embodiments, the electronic and electrical system further comprises an outer dry redundancy network, the first device comprises a first sub-network having a first controller, the fourth device comprises a fourth sub-network having a fourth controller, the fifth device comprises a fifth sub-network having a fifth controller, and the outer dry redundancy network communicatively connects the first sub-network, the fourth sub-network, the fifth sub-network, and the second device.

[0026] In some embodiments, the first device is a left zone controller of the vehicle, the second device is a right zone controller of the vehicle, the third device is a cabin zone controller of the vehicle, the fourth device is a front zone controller of the vehicle, and the fifth device is a rear zone controller of the vehicle.

[0027] In some embodiments, the backbone communication network is configured to enable communication between different devices in the electronic and electrical system when the electronic and electrical system is in a first state, and the inner dry redundancy network is configured to enable communication between different devices in the electronic and electrical system when the electronic and electrical system is in a second state.

[0028] In some embodiments, the first state comprises a normal working state, and the second state comprises a communication link abnormality in which one or more devices are connected.

[0029] In some embodiments, the outer dry redundancy network is configured to enable communication between different devices in the electronic and electrical system when the electronic and electrical system is in a third state.

[0030] In some embodiments, the third state comprises one or more of a device abnormality by itself, or a need to start the inner dry redundancy network but an abnormality in the inner dry redundancy network.

[0031] In some embodiments, the devices are configured to be a sender, a router, and a receiver.

[0032] The communication method according to an embodiment of the application is applied to the electronic and electrical system, and comprises the following steps.

[0033] The device obtains a data set from the communication link;

[0034] If the data set is sent by the device itself, the device destroys the data set;

[0035] If the data set is not correct, the device destroys the data set;

[0036] If the data set has been received by the device, the device destroys the data set;

[0037] If the device is the receiver of the data set, the device processes the data set as the receiver; if the device is not the receiver of the data set, the device sends the data set to other communication links.

[0038] In some embodiments, the data set comprises identification information for indicating the sender of the data set; and / or the data set comprises data verification information for indicating the correctness of the data set.

[0039] In some embodiments, the identification information comprises at least one of the MAC, IP address and server port number of the data set; and / or the data verification information comprises a verification code or a data freshness value based on the SecOC specification of AUTOSAR.

[0040] The device according to an embodiment of the application comprises a processor connected with a memory, and the processor implements the steps of the communication method when executed.

[0041] The vehicle according to an embodiment of the application comprises the electronic and electrical system, or comprises the communication method, or comprises the device. BRIEF DESCRIPTION OF DRAWINGS

[0042] FIG. 1 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0043] FIG. 2 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0044] FIG. 3 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0045] FIG. 4 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0046] FIG. 5 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0047] FIG. 6 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0048] Fig. 7 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0049] Fig. 8 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0050] Fig. 9 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0051] Fig. 10 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0052] Fig. 11 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0053] Fig. 12 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0054] Fig. 13 is a schematic diagram of an electronic and electrical system according to an embodiment of the application.

[0055] Fig. 14 is a schematic diagram of a data flow in an electronic and electrical system according to an embodiment of the application.

[0056] Fig. 15 is a schematic diagram of a data transmission using an inner dual-redundant network when all communication links of a first device are faulty.

[0057] Fig. 16 is a schematic diagram of a data transmission using an outer dual-redundant network when the first device is faulty or needs to be activated using an inner dual-redundant network and the inner dual-redundant network is faulty.

[0058] Fig. 17 is a flowchart of a communication method according to an embodiment of the application.

[0059] Fig. 18 is a schematic diagram of a vehicle according to an embodiment of the application.

[0060] Reference signs: vehicle 100, electronic and electrical system 10, first device 11, first subnetwork 1101, first controller 1102, second device 12, third device 13, fourth device 14, fourth subnetwork 1401, fourth controller 1402, fifth device 15, fifth subnetwork 1501, fifth controller 1502, first communication link 101, second communication link 102, third communication link 103, fourth communication link 104, inner dual-redundant network 105, outer dual-redundant network 106. DETAILED DESCRIPTION

[0061] Embodiments of the application are described in detail below with reference to the attached drawing figures, wherein like reference numerals identify like elements or elements with similar functions across the several views. The embodiments described below are merely examples used to explain the application and are not intended to limit the application.

[0062] As shown in Fig. 1, the electronic and electrical system 10 of the vehicle 100 according to the embodiment of the present application includes a plurality of devices and a backbone communication network, and the communication between the plurality of devices can be realized by using the backbone communication network.

[0063] The plurality of devices include a first device 11, a second device 12 and a third device 13, and the backbone communication network includes a first communication link 101, a second communication link 102, a third communication link 103 and a fourth communication link 104, the first communication link 101 and the second communication link 102 are communicatively connected to the first device 11 and the second device 12, the third communication link 103 is communicatively connected to the third device 13 and the first device 11, and the fourth communication link 104 is communicatively connected to the third device 13 and the second device 12.

[0064] The first device 11, the second device 12 and the third device 13 are communicatively connected by the backbone communication network, and a ring network is formed, wherein the first communication link 101 and the second communication link 102 are communicatively connected to the first device 11 and the second device 12 to form the ring network; the first communication link 101 is communicatively connected to the first device 11 and the second device 12, the third communication link 103 is communicatively connected to the third device 13 and the first device 11, and the fourth communication link 104 is communicatively connected to the third device 13 and the second device 12 to form the ring network; and the second communication link 102 is communicatively connected to the first device 11 and the second device 12, the third communication link 103 is communicatively connected to the third device 13 and the first device 11, and the fourth communication link 104 is communicatively connected to the third device 13 and the second device 12 to form the ring network.

[0065] The electronic and electrical system 10 of the vehicle 100 according to the embodiment of the present application can realize the communication between the first device 11, the second device 12 and the third device 13 by using the backbone communication network, and can realize stable communication between the first device 11, the second device 12 and the third device 13, thereby avoiding the problem that the communication between the plurality of devices cannot be realized due to the disconnection of a certain link, and effectively improving the communication stability.

[0066] Through the above-mentioned ring network, stable communication can be realized, and stable data transmission can be ensured even if a certain communication link is abnormal.

[0067] For example, the first device 11 can send and receive data through the first communication link 101, the second communication link 102 and the third communication link 103. When the first communication link 101 is abnormal, the first device 11 can communicate with the second device 12 through the second communication link 102; the first device 11 can also communicate with the second device 12 through the third communication link 103; the first device 11 can also communicate with the third device 13 through the second communication link 102 and the fourth communication link 104; the first device 11 can also communicate with the third device 13 through the third communication link 103.

[0068] The second device 12 can send and receive data through the first communication link 101, the second communication link 102 and the fourth communication link 104. When the first communication link 101 is abnormal, the second device 12 can communicate with the first device 11 through the second communication link 102; the second device 12 can also communicate with the first device 11 through the third communication link 103; the second device 12 can also communicate with the third device 13 through the second communication link 102 and the third communication link 103; the second device 12 can also communicate with the third device 13 through the fourth communication link 104.

[0069] Of course, the above description is only some embodiments of the present application, and is not a limitation on the scope of protection of the present application. Among them, the device in the present application can be a regional controller, or a controller, a sensor or an actuator.

[0070] Among them, the first device 11 can be the left regional controller of the vehicle 100, the second device 12 can be the right regional controller of the vehicle 100, and the third device 13 can be the cabin regional controller of the vehicle 100.

[0071] In order to realize the stability of communication, the electronic and electrical system 10 of the present application includes but is not limited to the following embodiments.

[0072] Embodiment one, as shown in FIG. 2, the electronic and electrical system 10 further comprises an internal dry redundancy network 105, which is communicatively connected to at least one of the plurality of devices. Among them, the internal dry redundancy network 105 can be communicatively connected to one or two of the plurality of devices, or communicatively connected to each of the plurality of devices. In combination with the foregoing, the internal dry redundancy network 105 can be communicatively connected to the first device 11, the second device 12 and the third device 13.

[0073] In order to facilitate the communication of the devices by using the inner trunk redundancy network 105, and in order to facilitate the communication of the corresponding devices by using the inner trunk redundancy network 105 when the main trunk communication network is difficult to meet the communication. For example, when the first device 11 and the second device 12 are communicatively connected to the inner trunk redundancy network 105, when the communication link (direct or indirect communication link) between the first device 11 and the second device 12 fails, the communication between the first device 11 and the second device 12 can be realized by the inner trunk redundancy network 105, in addition, the communication between the first device 11 and the third device 13, and the communication between the second device 12 and the third device 13 can also be realized by using the combination of the inner trunk redundancy network 105 and the main trunk communication network.

[0074] For example, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, and the inner trunk redundancy network 105 is communicatively connected to the first device 11, the second device 12 and the third device 13. The communication between the first device 11, the second device 12 and the third device 13 can be realized by the inner trunk redundancy network 105.

[0075] Embodiment two, as shown in FIG. 3, the electronic and electrical system 10 further comprises an outer trunk redundancy network 106, and at least one of the plurality of devices comprises a subnet having a controller, and the outer trunk redundancy network 106 is communicatively connected to the subnet. When the inner trunk redundancy network 105 fails, the communication can be realized by using the outer trunk redundancy network 106, especially for the more important controllers in the devices, by using the communication through the outer trunk redundancy network 106, the stability of the electronic and electrical system 10 can be improved.

[0076] For example, the electronic and electrical system 10 further comprises an outer trunk redundancy network 106, and the first device 11 comprises a first subnet 1101 having a first controller 1102, and the outer trunk redundancy network 106 is communicatively connected to the first subnet 1101 and the second device 12. When the first device 11 fails, the more important controller in the first device 11 can be communicated by using the outer trunk redundancy network 106, so as to meet the basic needs of the communication of the vehicle 100, for example, when the main trunk communication network, the inner trunk communication network or the device itself fails, the braking operation of the vehicle 100 can be realized by using the outer trunk redundancy network 106, so as to further improve the stability of the electronic and electrical system 10.

[0077] Embodiment three, as shown in FIG. 4, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, and the inner trunk redundancy network 105 is communicatively connected to at least one of the plurality of devices. The electronic and electrical system 10 further comprises an outer trunk redundancy network 106, and at least one of the plurality of devices comprises a subnet having a controller, and the outer trunk redundancy network 106 is communicatively connected to the subnet.

[0078] For example, the inner trunk redundant network 105 communicatively connects the first device 11, the second device 12 and the third device 13. The first device 11 includes a first sub-network 1101 having a first controller 1102, and the outer trunk redundant network 106 communicatively connects the first sub-network 1101 and the second device 12.

[0079] In some embodiments of the present application, the first communication link 101, the second communication link 102, the third communication link 103 and the fourth communication link 104 have the same communication type. In other embodiments of the present application, at least two of the first communication link 101, the second communication link 102, the third communication link 103 and the fourth communication link 104 have different communication types.

[0080] For example, the first communication link 101, the second communication link 102, the third communication link 103 and the fourth communication link 104 in the present application include, but are not limited to, the following implementations:

[0081] Implementation one, the first communication link 101, the second communication link 102, the third communication link 103 and the fourth communication link 104 have the same communication type; implementation two, the first communication link 101, the second communication link 102 and the third communication link 103 have the same communication type, and the third communication link 103 and the fourth communication link 104 have different communication types; implementation three, the first communication link 101 and the second communication link 102 have the same communication type, the second communication link 102 and the third communication link 103 have different communication types, and the third communication link 103 and the fourth communication link 104 have the same communication type. Of course, other implementations can also be included in the present application, which will not be described herein.

[0082] In addition, the communication type of the first communication link 101 is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or the communication type of the second communication link 102 is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or the communication type of the third communication link 103 is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or the communication type of the fourth communication link 104 is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication.

[0083] In addition, in some embodiments of the present application, the plurality of devices can also include other devices in addition to the first device 11, the second device 12 and the third device 13, and the communication between the plurality of devices can also be achieved through the trunk communication network, the inner trunk redundant network 105 and the outer trunk redundant network 106. The electronic and electrical system 10 of the present application can include, but is not limited to, the following implementations.

[0084] In some examples, as shown in FIG. 6, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, the inner trunk redundancy network 105 communicatively connecting the first device 11, the second device 12, the third device 13 and the fourth device 14. In this way, the inner trunk redundancy network 105 can be utilized for communication of the devices, and in the event that the main trunk communication network is unable to meet the communication, the inner trunk redundancy network 105 can be utilized to enable communication of the corresponding devices.

[0085] In some examples, as shown in FIG. 6, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, the inner trunk redundancy network 105 communicatively connecting the first device 11, the second device 12, the third device 13 and the fourth device 14. In this way, the inner trunk redundancy network 105 can be utilized for communication of the devices, and in the event that the main trunk communication network is unable to meet the communication, the inner trunk redundancy network 105 can be utilized to enable communication of the corresponding devices.

[0086] In some examples, as shown in FIG. 6, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, the inner trunk redundancy network 105 communicatively connecting the first device 11, the second device 12, the third device 13 and the fourth device 14. In this way, the inner trunk redundancy network 105 can be utilized for communication of the devices, and in the event that the main trunk communication network is unable to meet the communication, the inner trunk redundancy network 105 can be utilized to enable communication of the corresponding devices.

[0087] In some examples, as shown in FIG. 6, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, the inner trunk redundancy network 105 communicatively connecting the first device 11, the second device 12, the third device 13 and the fourth device 14. In this way, the inner trunk redundancy network 105 can be utilized for communication of the devices, and in the event that the main trunk communication network is unable to meet the communication, the inner trunk redundancy network 105 can be utilized to enable communication of the corresponding devices.

[0088] In some examples, as shown in FIG. 6, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, the inner trunk redundancy network 105 communicatively connecting the first device 11, the second device 12, the third device 13 and the fourth device 14. In this way, the inner trunk redundancy network 105 can be utilized for communication of the devices, and in the event that the main trunk communication network is unable to meet the communication, the inner trunk redundancy network 105 can be utilized to enable communication of the corresponding devices.

[0089] In the embodiment two, as shown in FIG. 9, the plurality of devices further comprises a fourth device 14 connected to the first communication link 101 between the first device 11 and the second device 12, and further comprises a fifth device 15 connected to the second communication link 102 between the first device 11 and the second device 12. The fourth device 14 can communicate with the first device 11 through a part of the first communication link 101, and the fourth device 14 can communicate with the second device 12 through another part of the first communication link 101; the fifth device 15 can communicate with the first device 11 through a part of the second communication link 102, and the fifth device 15 can communicate with the second device 12 through another part of the second communication link 102.

[0090] In some examples, as shown in FIG. 10, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, which is communicatively connected to the first device 11, the second device 12, the third device 13, the fourth device 14 and the fifth device 15. The inner trunk redundancy network 105 is used for communication of the devices, and when the main trunk communication network cannot meet the communication, the inner trunk redundancy network 105 is used to realize the communication of the corresponding devices.

[0091] In other examples, as shown in FIG. 11, the electronic and electrical system 10 further comprises an outer trunk redundancy network 106, the first device 11 comprises a first sub-network 1101 having a first controller 1102, the fourth device 14 comprises a fourth sub-network 1401 having a fourth controller 1402, the fifth device 15 comprises a fifth sub-network 1501 having a fifth controller 1502, and the outer trunk redundancy network 106 is communicatively connected to the first sub-network 1101, the fourth sub-network 1401, the fifth sub-network 1501 and the second device 12. When the first device 11 fails, the more important controller in the first device 11 can be communicated through the outer trunk redundancy network 106 to meet the basic communication needs of the vehicle 100; when the fourth device 14 fails, the more important controller in the fourth device 14 can be communicated through the outer trunk redundancy network 106 to meet the basic communication needs of the vehicle 100; when the fifth device 15 fails, the more important controller in the fifth device 15 can be communicated through the outer trunk redundancy network 106 to meet the basic communication needs of the vehicle 100.

[0092] In some examples, as shown in FIG. 12, the electronic and electrical system 10 further comprises an inner trunk redundancy network 105, the inner trunk redundancy network 105 communicatively connecting the first device 11, the second device 12, the third device 13, the fourth device 14 and the fifth device 15. The electronic and electrical system 10 further comprises an outer trunk redundancy network 106, the first device 11 comprising a first sub-network 1101 having a first controller 1102, the fourth device 14 comprising a fourth sub-network 1401 having a fourth controller 1402, the fifth device 15 comprising a fifth sub-network 1501 having a fifth controller 1502, the outer trunk redundancy network 106 communicatively connecting the first sub-network 1101, the fourth sub-network 1401, the fifth sub-network 1501 and the second device 12.

[0093] In some examples, the fifth device 15 can be a rear region controller of the vehicle 100.

[0094] In the foregoing embodiments, the main trunk communication network and the inner trunk communication network are provided, and communication between the plurality of devices can be achieved. The main trunk communication network can be configured to achieve communication between different devices in the electronic and electrical system 10 when the electronic and electrical system 10 is in a first state. The inner trunk redundancy network 105 is configured to achieve communication between different devices in the electronic and electrical system 10 when the electronic and electrical system 10 is in a second state.

[0095] In some examples, the first state can include a normal working state, and the second state can include a communication link communication abnormality in which one or more devices are connected.

[0096] In addition, in the foregoing embodiments, in addition to the main trunk communication network and the inner trunk communication network, an outer trunk communication network is provided. The outer trunk redundancy network 106 is configured to achieve communication between different devices in the electronic and electrical system 10 when the electronic and electrical system 10 is in a third state.

[0097] In some examples, the third state includes one or more devices being abnormal by themselves, or includes the inner trunk redundancy network 105 needing to be started but the inner trunk redundancy network 105 being abnormal.

[0098] In some examples, the devices are configured to be a sender, a router and a receiver.

[0099] In the foregoing embodiments, the electronic and electrical system 10 can include the first device 11, the second device 12, the third device 13, the fourth device 14 and the fifth device 15. In some examples, the first device 11 can be a left region controller of the vehicle 100, the second device 12 can be a right region controller of the vehicle 100, the third device 13 can be a cabin region controller of the vehicle 100, the fourth device 14 can be a front region controller of the vehicle 100, and the fifth device 15 can be a rear region controller of the vehicle 100. Some specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0100] The electronic and electrical system 10 of the present application can include a fourth device 14, a fifth device 15, a first device 11, a second device 12 and a third device 13, wherein the fourth device 14, the fifth device 15 and the first device 11 are designed as a fourth sub-network 1401, a fifth sub-network 1501 and a first sub-network 1101 respectively, and each sub-network can be connected to multiple controllers.

[0101] As shown in FIG. 13, the first device 11 can be a left area controller of the vehicle 100, the second device 12 can be a right area controller of the vehicle 100, the third device 13 can be a cabin area controller of the vehicle 100, the fourth device 14 can be a front area controller of the vehicle 100, and the fifth device 15 can be a rear area controller of the vehicle 100. The first device 11, the second device 12, the fourth device 14 and the fifth device 15 are designed according to the left, right, front and rear positions, and form a ring network using the first communication link 101 and the second communication link 102; the third device 13 is in communication connection with the first device 11 through the third communication link 103, and the third device 13 is in communication connection with the second device 12 through the fourth communication link 104, so that the first device 11, the fourth device 14, the second device 12 and the third device 13 form a ring network, and the first device 11, the fifth device 15, the second device 12 and the third device 13 form a ring network. The fourth device 14, the fifth device 15, the first device 11, the second device 12 and the third device 13 are further linked to an inner trunk redundancy network 105 respectively, and form the inner trunk redundancy network 105 (CAN or CANFD). The sub-networks of the fourth device 14, the first device 11 and the fifth device 15 select key controllers, each sub-network can select multiple controllers, and is linked to an outer trunk redundancy network 106, and finally connected to the second device 12 to form the outer trunk redundancy network 106 (CAN or CANFD).

[0102] The first communication link 101, the second communication link 102, the third communication link 103 and the fourth communication link 104 are the main communication networks of the devices, and only when one or more devices linked to the ring network itself have abnormal conditions, the inner trunk redundancy network 105 is started to enable the abnormal devices to communicate with other normal area controllers, but the communication data needs to be restricted, and only the specified key data can be communicated to prevent too much data from causing the inner trunk redundancy network 105 to also collapse; when one or more devices themselves have abnormal conditions, or the inner trunk redundancy network 105 is needed to be started but the inner trunk redundancy network 105 is also abnormal, the outer trunk redundancy network 106 is started to enable the key controllers such as braking and steering to communicate to ensure that the vehicle can safely drive and park to handle the abnormality.

[0103] The following Figure 13 is an example of the whole vehicle network of the architecture. The controllers within the location area controller range can be integrated in the area controller or linked in the corresponding domain controller subnet, while each domain is designed with a LIN subnet; the key controllers need to be linked in the corresponding area controller subnet and linked to the external dry redundancy network 106 channel. In the example of Figure 13, the fourth device 14 can integrate the air conditioning system, the on-board power supply, the low-voltage battery, the gear shifting mechanism system and the steering system, etc., and the fourth subnet 1401 is designed for the front drive motor and the battery management system, etc., and is linked to the external dry redundancy network 106; the first device 11 can integrate the intelligent entry, the left door control and the steering wheel switch, etc., and the first subnet 1101 is linked to the intelligent electro-hydraulic brake and the airbag, etc., and is linked to the external dry redundancy network 106; the fifth device 15 integrates the combination lamp, the charging system, the rear door, etc., and the fifth subnet 1501 is linked to the rear drive motor controller and is linked to the external dry redundancy network 106; the second device 12 integrates the right door control, the 4G / 5G link cloud system for OTA upgrade, etc., and is connected to a diagnostic network for diagnosis and burning, and the domain is directly linked to the external dry redundancy network 106; the third device 13 integrates the driving assistance system, the seat system, the multimedia entertainment system, etc., and the extended subnet is linked to the radar and the camera system.

[0104] Figure 14 is a communication data flow diagram of the fourth device 14, the fifth device 15, the first device 11, the second device 12 and the third device 13 through the first communication link 101, the second communication link 102, the third communication link 103 and the fourth communication link 104.

[0105] Each device plays three roles in the redundancy communication, which are: the sender (data source sending starting point), the router and the receiver (data receiving end point), and the data flow sending rules of each device include but are not limited to the following description.

[0106] If it is a data set sender, the data set sends data to all communication links of the device. For example, the first device 11 will send data to the first communication link 101, the second communication link 102 and the third communication link 103; for another example, the second device 12 will send data to the first communication link 101, the second communication link 102 and the fourth communication link 104.

[0107] If it is a data routing party, it needs to judge the correctness of the data and whether the data is sent by itself. If the data is correct and not sent by itself, the data set is sent to all communication links except the communication link on which the data set is received. Otherwise, the data is destroyed. For example, after the first device 11 receives data from the first communication link 101, if it is judged that the data is correct and not sent by itself, the data set is sent to the second communication link 102 and the third communication link 103. Otherwise, the data is destroyed. For another example, after the first device 11 receives data from the second communication link 102, if it is judged that the data is correct and not sent by itself, the data set is sent to the first communication link 101 and the third communication link 103. Otherwise, the data is destroyed. For another example, after the second device 12 receives data from the first communication link 101, if it is judged that the data is correct and not sent by itself, the data set is sent to the second communication link 102 and the fourth communication link 104. Otherwise, the data is destroyed.

[0108] If it is a data receiving party, it receives and processes the data set and does not send the data set in the ring network. In this way, the links form the redundancy of the network of the fourth device 14, the fifth device 15, the first device 11, the second device 12, and the third device 13. Any abnormality of the ring network does not affect the communication interaction of each device.

[0109] As shown in FIG. 15, when all the ring networks (including the first communication link 101, the second communication link 102, and the third communication link 103) linked by the first device 11 are abnormal, the data flow diagram of the inner trunk redundancy network 105 is started. When the ring networks are not abnormal, the inner trunk redundancy network 105 does not perform data communication (special data can also be specified to perform communication). When all the ring networks connected by the first device 11 are abnormal, the first device 11 sends critical data to the inner trunk redundancy network 105. After the other devices receive the critical data, they also start the communication scheme of the inner trunk redundancy network 105, filter out specific data, and communicate through the inner trunk redundancy network 105 and the abnormal first device 11. The other normal devices use the main ring network to interact normally. In the figure, the abnormality controlled by the first device 11 can be multiple. However, when all the ring networks are abnormal, the specified critical data cannot exceed the load range of the inner trunk redundancy network 105, and the data should be designed in advance.

[0110] As shown in FIG. 16, when the first device 11 itself is abnormal or the inner trunk redundancy network 105 needs to be started but the inner trunk redundancy network 105 is also abnormal, the outer trunk redundancy network 106 is started to make the brake and steering critical controllers communicate.

[0111] As shown in FIG. 17, the present application also provides a communication method applied to the aforementioned electronic and electrical system 10, wherein the aforementioned devices can act as a sender, a receiver and a router, and the communication method of the devices can include:

[0112] The device obtains a data set from a communication link, wherein the device can act as a receiver to receive data from the communication link, and judges the data after receiving the data.

[0113] If the data set is sent by the device itself, the device destroys the data set; if the data set is sent by the device itself through the communication link to other devices, the communication link in the present application forms a plurality of ring networks, thus the data sent by the device can be transmitted back to the device, when the data is transmitted back through the ring link, the data set can be incorrect or can have been obtained by the receiver, the device destroys the data set to avoid the data set circulating in the ring link.

[0114] If the data set is incorrect, the device destroys the data set, when the data set is incorrect, the device destroys the data set to avoid the incorrect data set circulating in the communication link and affecting the communication of the correct data set.

[0115] If the data set is received by the device, the device destroys the data set, when the device repeatedly receives the data set, the data set received for the first time has been processed (destroyed, received or sent to other links, etc.), thus the data set received again is useless and will be destroyed.

[0116] If the device is the receiver of the data set, the device processes the data set as a receiver; if the device is not the receiver of the data set, the device sends the data set to other communication links, wherein when the correctness of the data set is determined and the data set is indeed sent to the device as a receiver, the device can receive the data set, and when the data set is not sent to the device as a receiver, the device can act as a router to transmit the data set to other devices.

[0117] In some embodiments, the data set includes identification information used to indicate the sender of the data set. That is, when the device sends the data set, the sender is included in the data set, which can facilitate the judgment of the source of the data set, and thus facilitate the sending, receiving and identification of the data set by the devices in the electronic and electrical system.

[0118] In addition, the data set includes data verification information used to indicate the correctness of the data set, which can facilitate the judgment of the correctness of the data set to ensure the correctness and integrity of the data set, etc.

[0119] In some embodiments, the identification information includes at least one of a MAC address (Media Access Control Address, i.e. physical address), an IP address (Internet Protocol Address) and a server port number of the data set, and whether the data set is sent by the device itself can be determined according to at least one of the MAC address, the IP address and the server port number of the data set.

[0120] In addition, the data verification information includes a verification code, or the data verification information can also include a data freshness value based on the AUTOSAR (AUTomotive Open System Architecture, i.e. automotive open system architecture) SecOC (Security Onboard Communication, i.e. onboard encryption communication) specification. The correctness of the data set can be determined according to the verification code of the data or the data freshness value based on the AUTOSAR SecOC specification.

[0121] A database of data received in a unit of time can also be established, and the data set is compared with the database to determine whether the data set has been received by the device; or whether the data set is intended for the device according to the Ethernet specification or the destination MAC.

[0122] The device according to the embodiments of the present application includes a processor connected with a memory, wherein the memory can store the steps of the foregoing communication method, and the processor executes the steps of the foregoing communication method when running. The device can be the first device 11, the second device 12, the third device 13, the fourth device 14 and the fifth device 15.

[0123] In addition, the present application also provides a memory which stores a program executable by a processor, and the processor executes the program stored in the memory when running.

[0124] As shown in FIG. 18, the present application also provides a vehicle including the foregoing electronic signing system; or including the foregoing communication method; or including the foregoing device.

[0125] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0126] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0127] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0128] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0129] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0130] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An electronic and electrical system (10) of a vehicle, wherein The electronic and electrical system (10) comprises a plurality of devices including a first device (11), a second device (12) and a third device (13), and a backbone communication network including a first communication link (101), a second communication link (102), a third communication link (103) and a fourth communication link (104), the first communication link (101) and the second communication link (102) being communicatively connected the first device (11) and the second device (12), the third communication link (103) being communicatively connected the third device (13) and the first device (11), and the fourth communication link (104) being communicatively connected the third device (13) and the second device (12).

2. The electronic electrical system (10) according to claim 1, wherein The electronic and electrical system (10) further comprises an inner dry redundancy network (105) communicatively connected at least one of the plurality of devices; and / or, the electronic and electrical system (10) further comprises an outer dry redundancy network (106), at least one of the plurality of devices comprising a subnet having a controller, the outer dry redundancy network (106) being communicatively connected the subnet.

3. The electronic electrical system (10) according to claim 1, wherein The electronic and electrical system (10) further comprises an inner dry redundancy network (105) communicatively connected the first device (11), the second device (12) and the third device (13).

4. The electronic electrical system (10) according to claim 1 or 3, wherein The electronic and electrical system (10) further comprises an outer dry redundancy network (106), the first device (11) comprising a first subnet (1101) having a first controller (1102), the outer dry redundancy network (106) being communicatively connected the first subnet (1101) and the second device (12).

5. The electronic electrical system (10) according to claim 1, wherein The plurality of devices further comprises a fourth device (14), the fourth device (14) being connected in the first communication link (101) between the first device (11) and the second device (12).

6. The electronic electrical system (10) according to claim 5, wherein The electronic and electrical system (10) further comprises an inner dry redundancy network (105) communicatively connected the first device (11), the second device (12), the third device (13) and the fourth device (14).

7. The electronic electrical system (10) according to claim 5 or 6, wherein The electronic and electrical system (10) further comprises an outer dry redundancy network (106), the first device (11) comprising a first subnet (1101) having a first controller (1102), the fourth device (14) comprising a fourth subnet (1401) having a fourth controller (1402), the outer dry redundancy network (106) being communicatively connected the first subnet (1101), the fourth subnet (1401) and the second device (12).

8. The electronic electrical system (10) according to claim 5, wherein The plurality of devices further comprises a fifth device (15), the fifth device (15) being connected in the second communication link (102) between the first device (11) and the second device (12).

9. The electronic electrical system (10) according to claim 8, wherein The electronic and electrical system (10) further comprises an inner dry redundancy network (105) which is communicatively connected with the first device (11), the second device (12), the third device (13), the fourth device (14) and the fifth device (15).

10. The electronic electrical system (10) according to claim 8 or 9, wherein The electronic and electrical system (10) further comprises an outer dry redundancy network (106), the first device (11) comprises a first sub-network (1101) with a first controller (1102), the fourth device (14) comprises a fourth sub-network (1401) with a fourth controller (1402), the fifth device (15) comprises a fifth sub-network (1501) with a fifth controller (1502), and the outer dry redundancy network (106) is communicatively connected with the first sub-network (1101), the fourth sub-network (1401), the fifth sub-network (1501) and the second device (12).

11. The electronic electrical system (10) according to claim 8, wherein The first device (11) is a left area controller of the vehicle, the second device (12) is a right area controller of the vehicle, the third device (13) is a cabin area controller of the vehicle, the fourth device (14) is a front area controller of the vehicle, and the fifth device (15) is a rear area controller of the vehicle.

12. The electronic electrical system (10) according to claim 2, 3, 6 or 9, wherein The backbone communication network is configured to realize communication between different devices in the electronic and electrical system (10) when the electronic and electrical system (10) is in a first state; and the inner dry redundancy network (105) is configured to realize communication between different devices in the electronic and electrical system (10) when the electronic and electrical system (10) is in a second state.

13. The electronic electrical system (10) according to claim 12, wherein The first state includes a normal working state; and the second state includes a communication link communication abnormality in which one or more devices are connected.

14. The electronic electrical system (10) according to claim 2, 4, 7 or 10, wherein, The outer dry redundancy network (106) is configured to realize communication between different devices in the electronic and electrical system (10) when the electronic and electrical system (10) is in a third state.

15. The electronic electrical system (10) according to claim 14, wherein The third state includes one or more devices being abnormal by themselves; or includes a need to start the inner dry redundancy network (105) but the inner dry redundancy network (105) is abnormal.

16. The electronic electrical system (10) according to any of claims 1-11, wherein The devices are configured to be a sender, a router and a receiver.

17. The electronic electrical system (10) according to claim 1, wherein The communication types of the first communication link (101), the second communication link (102), the third communication link (103) and the fourth communication link (104) are the same; or the communication types of at least two of the first communication link (101), the second communication link (102), the third communication link (103) and the fourth communication link (104) are different.

18. The electronic electrical system (10) according to claim 1, wherein The communication type of the first communication link (101) is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or The communication type of the second communication link (102) is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or The communication type of the third communication link (103) is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication; and / or The communication type of the fourth communication link (104) is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication and Bluetooth communication. The communication type of the third communication link (103) is one of Ethernet communication, CAN communication, fiber communication, WiFi communication, Bluetooth communication; and / or The communication type of the fourth communication link (104) is one of Ethernet communication, CAN communication, fiber communication, WiFi communication, Bluetooth communication.

19. A communication method applied to the electronic and electric system (10) of any one of claims 1-18, wherein, Comprising: The device acquires a data set from a communication link; If the data set is sent by the device itself, the device destroys the data set; If the data set is not correct, the device destroys the data set; If the data set has been received by the device, the device destroys the data set; If the device is not the recipient of the data set, the device sends the data set to other communication links.

20. The communication method according to claim 19, wherein, The data set includes identification information, which is used to indicate the sender of the data set; and / or, The data set includes data verification information, which is used to indicate the correctness of the data set.

21. The communication method according to claim 20, wherein The identification information includes at least one of the MAC address, IP address and server port number of the data set; and / or, the data verification information includes a check code or an AUTOSAR-based SecOC specification data freshness value.

22. A device comprising a processor connected to a memory, the processor, when executed, implements the steps of the communication method of any one of claims 19-21.

23. A vehicle, wherein, An electronic and electrical system (10) according to any one of claims 1-18; or a communication method according to any one of claims 19-21; or a device according to claim 22.

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