Electronic and electrical system, communication method, device and vehicle

Abstract

The invention discloses an electronic and electrical system, a communication method, devices and a vehicle, the electronic and electrical system comprises a plurality of devices and a trunk communication network, the plurality of devices comprise a first device, a second device and a third device, the trunk communication network comprises 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 are in communication connection with the first device and the second device, the third communication link is in communication connection with the third device and the first device, and the fourth communication link is in communication connection with the third device and the second device. According to the electronic and electrical system of the vehicle, communication among the first device, the second device and the third device can be achieved through the main communication network.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an electronic and electrical system, a communication method of the electronic and electrical system, a device and a vehicle. Background Art

[0002] In recent years, the electrification, networking and intelligence of automobiles have continued to deepen, the electronic and electrical architecture of automobiles has become increasingly complex, and the amount of information communication between various electronic and electrical components has increased exponentially. There are many ways to communicate this information, such as Ethernet, CAN bus, CANFD bus, LIN bus, etc. Because of the complexity of automotive devices and the diversification of communication forms, it is necessary to design a heterogeneous network communication redundant architecture based on regional controllers to meet the requirements of vehicle communication.

[0003] In the related technologies, the vehicle network topology architecture mainly uses the gateway as the control center, and then divides according to functions to form several functional domain backbone networks (such as chassis network, energy network, intelligent entry network, etc.). Summary of the invention

[0004] An object of the present application is to provide an electronic and electrical system for a vehicle.

[0005] Another object of the present application is to provide a communication method.

[0006] Yet another object of the present application is to provide a vehicle.

[0007] The electronic and electrical system of a vehicle according to an embodiment of the present application includes a plurality of devices and a backbone communication network, the plurality of devices include a first device, a second device and a third device, the backbone communication network includes 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 communicatively connect the first device and the second device, the third communication link communicatively connects the third device and the first device, and the fourth communication link communicatively connects the third device and the second device.

[0008] According to the electronic and electrical system of the vehicle according to the embodiment of the present application, the backbone communication network can be used to realize communication between the first device, the second device and the third device.

[0009] In addition, the electronic and electrical system of the vehicle according to the above embodiment of the present application may also have the following additional technical features:

[0010] In some embodiments, the electronic and electrical system further includes an internal redundant network, and the internal redundant network communicatively connects the first device, the second device, and the third device.

[0011] In some embodiments, the electronic and electrical system further includes an external redundant network, the first device includes a first subnet having a first controller, and the external redundant network communicatively connects the first subnet and the second device.

[0012] 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.

[0013] 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

[0014] The communication mode of the second communication link is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication, and Bluetooth communication; and / or

[0015] 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

[0016] The communication mode of the fourth communication link is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication, and Bluetooth communication.

[0017] In some embodiments, the plurality of devices further include a fourth device connected to the first communication link and located between the first device and the second device.

[0018] In some embodiments, the electronic and electrical system further includes an internal redundant network, and the internal redundant network communicatively connects the first device, the second device, the third device, and the fourth device.

[0019] In some embodiments, the electronic and electrical system further includes an external redundant network, the first device includes a first subnet having a first controller, the fourth device includes a fourth subnet having a fourth controller, and the external redundant network communicatively connects the first subnet, the fourth subnet and the second device.

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

[0021] In some embodiments, the electronic and electrical system further includes an internal redundant network, and the internal redundant network communicatively connects the first device, the second device, the third device, the fourth device, and the fifth device.

[0022] In some embodiments, the electronic and electrical system also includes an external redundant network, the first device includes a first subnet having a first controller, the fourth device includes a fourth subnet having a fourth controller, the fifth device includes a fifth subnet having a fifth controller, and the external redundant network communicatively connects the first subnet, the fourth subnet, the fifth subnet and the second device.

[0023] 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 cockpit 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.

[0024] In some embodiments, the backbone communication network is configured to enable communication between different components in the electronic and electrical system when the electronic and electrical system is in a first state; and the internal backbone redundant network is configured to enable communication between different components in the electronic and electrical system when the electronic and electrical system is in a second state.

[0025] In some embodiments, the first state includes a normal working state; and the second state includes abnormal communication of a communication link in which one or more devices are connected.

[0026] In some embodiments, the external redundant network is configured to enable communication between different components in the electronic and electrical system when the electronic and electrical system is in the third state.

[0027] In some embodiments, the third state includes one or more devices being abnormal; or includes the need to start an internal redundant network but the internal redundant network is abnormal.

[0028] In some embodiments, the device is configured as a sender, a router, and a receiver.

[0029] A communication method according to an embodiment of the present application is applied to the aforementioned electronic and electrical system, including:

[0030] The device obtains a data set from the communication link;

[0031] If the data set is issued by the device itself, the device destroys the data set;

[0032] If the correctness of the data set is no, the device destroys the data set;

[0033] If the data set has been received by the device, the device destroys the data set;

[0034] If the device is a receiver of the data set, the device processes the data set as a receiver; if the device is not a receiver of the data set, the device sends the data set to other communication links.

[0035] In some embodiments, the data set includes identification information, where the identification information is used to indicate a sender of the data set; and / or the data set includes data verification information, where the data verification information is used to indicate correctness of the data set.

[0036] In some embodiments, the identification information includes at least one of the MAC, IP address and server port number of the data set; and / or the data verification information includes a verification code or a data freshness value based on the SecOC specification of AUTOSAR.

[0037] The device according to the embodiment of the present application includes a processor, which is connected to a memory and implements the steps of the aforementioned communication method when executed by the processor.

[0038] According to an embodiment of the present application, the vehicle includes the aforementioned electronic and electrical system; or includes the aforementioned communication method; or includes the aforementioned device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0040] Figure 2 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0041] Figure 3 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0042] Figure 4 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0043] Figure 5 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0044] Figure 6 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0045] Figure 7 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0046] Figure 8 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0047] Fig. 9 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0048] Fig.10 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0049] Fig.11 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0050] Fig.12 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0051] Fig.13 It is a schematic diagram of an electronic and electrical system according to an embodiment of the present application.

[0052] Fig.14 It is a schematic diagram of data flow in an electronic and electrical system according to an embodiment of the present application.

[0053] Fig.15 It is a schematic diagram of starting the internal redundant network to transmit data when all communication links connected to the first device are abnormal.

[0054] Fig.16 It is a schematic diagram of starting the external redundant network to transmit data when the first device itself is abnormal or the internal redundant network needs to be started and the internal redundant network is also abnormal.

[0055] Fig.17 It is a flowchart of a communication method according to an embodiment of the present application.

[0056] Fig.18 It is a schematic diagram of a vehicle according to an embodiment of the present application.

[0057] Figure numerals: vehicle 100, electronic and electrical system 10, first device 11, first subnet 1101, first controller 1102, second device 12, third device 13, fourth device 14, fourth subnet 1401, fourth controller 1402, fifth device 15, fifth subnet 1501, fifth controller 1502, first communication link 101, second communication link 102, third communication link 103, fourth communication link 104, internal redundant network 105, external redundant network 106. DETAILED DESCRIPTION

[0058] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0059] like Figure 1According to the embodiment of the present application, the electronic and electrical system 10 of the vehicle 100 includes multiple devices and a backbone communication network, and the backbone communication network can be used to achieve communication between the multiple devices.

[0060] The multiple 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.

[0061] The first device 11, the second device 12, and the third device 13 are communicatively connected via a backbone communication network to form a ring network, wherein the first communication link 101 is communicatively connected to the first device 11 and the second device 12, and the second communication link 102 is communicatively connected to the first device 11 and the second device 12 to form a 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 a ring network; 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 a ring network.

[0062] According to the electronic and electrical system 10 of the vehicle 100 of the embodiment of the present application, the backbone communication network can be used to realize communication between the first device 11, the second device 12 and the third device 13, and stable communication between the first device 11, the second device 12 and the third device 13 can be realized, thereby avoiding the problem of multiple devices being unable to communicate due to the disconnection of a certain link, and effectively improving communication stability.

[0063] Through the above-mentioned ring network, stable communication can be achieved, and even if one communication link is abnormal, stable data transmission can be guaranteed.

[0064] 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 fourth device 14 through the third communication link 103 and the second device 12; 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.

[0065] 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 fourth device 14 and 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.

[0066] Of course, the above description is only some implementation methods of the present application, and is not intended to limit the protection scope of the present application. The device in the present application may be a zone controller, or a controller, a sensor or an actuator.

[0067] The first device 11 may be a left zone controller of the vehicle 100 , the second device 12 may be a right zone controller of the vehicle 100 , and the third device 13 may be a cockpit zone controller of the vehicle 100 .

[0068] In order to achieve stability of communication, the electronic and electrical system 10 of the present application includes but is not limited to the following embodiments.

[0069] Embodiment 1, as Figure 2 The electronic and electrical system 10 further includes an internal redundant network 105, which is communicatively connected to at least one of the multiple devices. The internal redundant network 105 can be communicatively connected to one or two of the multiple devices, or can be communicatively connected to each of the multiple devices. In combination with the foregoing, the internal redundant network 105 can be communicatively connected to the first device 11, the second device 12, and the third device 13.

[0070] In order to facilitate the use of the internal redundant network 105 for device communication, and to facilitate the use of the internal redundant network 105 to achieve communication between corresponding devices when the backbone communication network is difficult to meet the communication needs. For example, when the first device 11 and the second device 12 are connected to the internal redundant network 105 for communication, 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 achieved through the internal redundant network 105. In addition, the combination of the internal redundant network 105 and the backbone communication network can also be used to achieve the communication between the first device 11 and the third device 13, and the second device 12 and the third device 13.

[0071] For example, the electronic and electrical system 10 further includes an internal redundant network 105, which is communicatively connected to the first device 11, the second device 12, and the third device 13. The internal redundant network 105 can be used to implement communication among the first device 11, the second device 12, and the third device 13.

[0072] Embodiment 2, as Figure 3 The electronic and electrical system 10 further includes an external redundant network 106. At least one of the multiple devices includes a subnet having a controller. The external redundant network 106 is communicatively connected to the subnet. When the internal redundant network 105 fails, the external redundant network 106 can be used for communication. In particular, for the more important controllers in the devices, the communication through the external redundant network 106 can improve the stability of the electronic and electrical system 10.

[0073] For example, the electronic and electrical system 10 further includes an external trunk redundant network 106, the first device 11 includes a first subnet 1101 having a first controller 1102, and the external trunk redundant network 106 is communicatively connected to the first subnet 1101 and the second device 12. When the first device 11 fails, the relatively important controller in the first device 11 can communicate through the external trunk redundant network 106, thereby meeting the basic communication requirements of the vehicle 100. For example, when the main communication network, the internal communication network or the device itself fails, the external trunk redundant network 106 can be used to implement operations such as braking of the vehicle 100, thereby further improving the stability of the electronic and electrical system 10.

[0074] Embodiment three, as Figure 4 The electronic and electrical system 10 further includes an internal redundant network 105, which is communicatively connected to at least one of the multiple devices. The electronic and electrical system 10 further includes an external redundant network 106, at least one of the multiple devices includes a subnet having a controller, and the external redundant network 106 is communicatively connected to the subnet.

[0075] For example, the internal redundant network 105 is communicatively connected to the first device 11, the second device 12 and the third device 13. The first device 11 includes a first subnet 1101 having a first controller 1102, and the external redundant network 106 is communicatively connected to the first subnet 1101 and the second device 12.

[0076] In some embodiments of the present application, 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. In other embodiments of the present application, 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.

[0077] 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:

[0078] In the first embodiment, 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; in the second embodiment, the communication types of the first communication link 101, the second communication link 102 and the third communication link 103 are the same, and the communication types of the third communication link 103 and the fourth communication link 104 are different; in the third embodiment, the communication types of the first communication link 101 and the second communication link 102 are the same, the communication types of the second communication link 102 and the third communication link 103 are different, and the communication types of the third communication link 103 and the fourth communication link 104 are the same. Of course, other embodiments may also be included in this application, which will not be described in detail in this application.

[0079] 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 mode 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 mode of the fourth communication link 104 is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication, and Bluetooth communication.

[0080] In addition, in some embodiments of the present application, the multiple devices may also include other devices in addition to the first device 11, the second device 12 and the third device 13, and communication between the multiple devices may also be achieved through a backbone communication network, an internal redundant network 105 and an external redundant network 106. The electronic and electrical system 10 of the present application may include but is not limited to the following implementations.

[0081] Implementation method 1: Figure 5 The plurality of devices further include a fourth device 14, which is connected to the first communication link 101 and is located between the first device 11 and the second device 12. The fourth device 14 can communicate with the first device 11 through a portion of the first communication link 101, and the fourth device 14 can communicate with the second device 12 through another portion of the first communication link 101.

[0082] In some examples, such as Figure 6 The electronic and electrical system 10 further includes an internal redundant network 105, which is communicatively connected to the first device 11, the second device 12, the third device 13, and the fourth device 14. The internal redundant network 105 is used to facilitate the communication of the devices, and when the main communication network cannot meet the communication requirements, the internal redundant network 105 can be used to achieve the communication of the corresponding devices.

[0083] In other examples, such as Figure 7 The electronic and electrical system 10 further includes an external redundant network 106, the first device 11 includes a first subnet 1101 having a first controller 1102, the fourth device 14 includes a fourth subnet 1401 having a fourth controller 1402, and the external redundant network 106 is communicatively connected to the first subnet 1101, the fourth subnet 1401 and the second device 12. When the first device 11 fails, the more important controller in the first device 11 can communicate through the external redundant network 106, thereby meeting the basic communication requirements of the vehicle 100; when the fourth device 14 fails, the more important controller in the fourth device 14 can communicate through the external redundant network 106, thereby meeting the basic communication requirements of the vehicle 100.

[0084] In some other examples, such as Figure 8 The electronic and electrical system 10 further includes an internal redundant network 105, which is communicatively connected to the first device 11, the second device 12, the third device 13, and the fourth device 14. The electronic and electrical system 10 further includes an external redundant network 106, wherein the first device 11 includes a first subnet 1101 having a first controller 1102, the fourth device 14 includes a fourth subnet 1401 having a fourth controller 1402, and the external redundant network 106 is communicatively connected to the first subnet 1101, the fourth subnet 1401, and the second device 12.

[0085] The fourth device 14 may be a front zone controller of the vehicle 100 .

[0086] Implementation method 2: Fig. 9The plurality of devices further include a fourth device 14, which is connected to the first communication link 101 and is located between the first device 11 and the second device 12; the plurality of devices further include a fifth device 15, which is connected to the second communication link 102 and is located between the first device 11 and the second device 12. The fourth device 14 can communicate with the first device 11 through a portion of the first communication link 101, and the fourth device 14 can communicate with the second device 12 through another portion of the first communication link 101; the fifth device 15 can communicate with the first device 11 through a portion of the second communication link 102, and the fifth device 15 can communicate with the second device 12 through another portion of the second communication link 102.

[0087] In some examples, such as Fig.10 The electronic and electrical system 10 further includes an internal redundant 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 internal redundant network 105 is used to facilitate the communication of the devices, and when the main communication network cannot meet the communication requirements, the internal redundant network 105 can be used to achieve the communication of the corresponding devices.

[0088] In other examples, such as Fig.11 The electronic and electrical system 10 also includes an external redundant network 106, the first device 11 includes a first subnet 1101 having a first controller 1102, the fourth device 14 includes a fourth subnet 1401 having a fourth controller 1402, and the fifth device 15 includes a fifth subnet 1501 having a fifth controller 1502. The external redundant network 106 is communicatively connected to the first subnet 1101, the fourth subnet 1401, the fifth subnet 1501 and the second device 12. When the first device 11 fails, the more important controller in the first device 11 can communicate through the external redundant network 106, thereby meeting the basic communication needs of the vehicle 100; when the fourth device 14 fails, the more important controller in the fourth device 14 can communicate through the external redundant network 106, thereby meeting the basic communication needs of the vehicle 100; when the fifth device 15 fails, the more important controller in the fifth device 15 can communicate through the external redundant network 106, thereby meeting the basic communication needs of the vehicle 100.

[0089] In some other examples, such as Fig.12The electronic and electrical system 10 further includes an internal redundant 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 electronic and electrical system 10 further includes an external redundant network 106, wherein the first device 11 includes a first subnet 1101 having a first controller 1102, the fourth device 14 includes a fourth subnet 1401 having a fourth controller 1402, the fifth device 15 includes a fifth subnet 1501 having a fifth controller 1502, and the external redundant network 106 is communicatively connected to the first subnet 1101, the fourth subnet 1401, the fifth subnet 1501, and the second device 12.

[0090] The fifth device 15 may be a rear area controller of the vehicle 100 .

[0091] In the aforementioned embodiment, a backbone communication network and an internal backbone communication network are set up to realize communication between multiple devices, wherein the backbone communication network can be 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; the internal backbone redundant 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.

[0092] The first state may include a normal working state; the second state may include a communication abnormality in a communication link in which one or more devices are connected.

[0093] In addition, in the aforementioned embodiment, in addition to the backbone communication network and the internal backbone communication network, an external backbone communication network is also provided, and the external backbone redundant network 106 is configured to enable communication between different devices in the electronic and electrical system 10 when the electronic and electrical system 10 is in the third state.

[0094] The third state includes one or more devices being abnormal; or the internal redundant network 105 needs to be started but the internal redundant network 105 is abnormal.

[0095] In some embodiments, the device is configured as a sender, a router, and a receiver.

[0096] In the aforementioned embodiment, the electronic and electrical system 10 may include a first device 11, a second device 12, a third device 13, a fourth device 14, and a fifth device 15, wherein the first device 11 may be a left zone controller of the vehicle 100, the second device 12 may be a right zone controller of the vehicle 100, the third device 13 may be a cockpit zone controller of the vehicle 100, the fourth device 14 may be a front zone controller of the vehicle 100, and the fifth device 15 may be a rear zone controller of the vehicle 100. Some specific embodiments of the present application are described below with reference to the accompanying drawings.

[0097] The electronic and electrical system 10 of the present application may 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 respectively designed as a fourth subnet 1401, a fifth subnet 1501 and a first subnet 1101, and each subnet can be connected to multiple controllers.

[0098] like Fig.13 , the first device 11 may be a left area controller of the vehicle 100, the second device 12 may be a right area controller of the vehicle 100, the third device 13 may be a cockpit area controller of the vehicle 100, the fourth device 14 may be a front area controller of the vehicle 100, and the fifth device 15 may 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 and right front and back positions, and use the first communication link 101 and the second communication link 102 to form a ring network; the third device 13 is connected to the first device 11 via the third communication link 103; the third device 13 is connected to the second device 12 via 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 respectively connected to the internal redundant network 105 to form the internal redundant network 105 (CAN or CANFD). The subnets of the fourth device 14, the first device 11 and the fifth device 15 select key controllers, and each subnet can select multiple controllers, which are respectively connected to the external redundant network 106, and finally connected to the second device 12 to form the external redundant network 106 (CAN or CANFD).

[0099] The first communication link 101, the second communication link 102, the third communication link 103 and the fourth communication link 104 serve as the backbone communication networks of each device. Only when an abnormality occurs in the ring network channel to which one or more devices are connected, the internal redundant network 105 is activated to allow these abnormal devices to communicate with other normal area controllers. However, the communication data needs to be constrained, and only the specified key data can be communicated to prevent excessive data from causing the internal redundant network 105 to collapse. When an abnormality occurs in one or more devices themselves, or the internal redundant network 105 needs to be activated and the internal redundant network 105 is also abnormal, the external redundant network 106 is activated to enable key controllers such as braking and steering to communicate, ensuring that the car can drive safely and stop to handle abnormalities.

[0100] Fig.13This is an example of the vehicle network of this architecture. The controllers within the location area controller can be integrated into the area controller or connected to the subnet of the corresponding domain controller. At the same time, each domain is designed with a LIN subnet; the key controller needs to be connected to the subnet of the corresponding area controller and connected to the external trunk redundant network 106 channel. Fig.13 In the example, the fourth device 14 can integrate the air-conditioning system, the vehicle power supply, the low-voltage battery, the shift mechanism system and the steering system, etc. The fourth subnet 1401 is designed with the front drive motor and the battery management system, etc., and is linked to the external redundant network 106; the first device 11 can integrate intelligent entry, left door control and steering wheel switch, etc. The first subnet 1101 is linked to the intelligent electro-hydraulic brake and the airbag, etc., and is linked to the external redundant network 106; the fifth device 15 integrates the combination lights, the charging system, the rear door, etc. The fifth subnet 1501 is linked to the rear drive motor controller and is linked to the external redundant network 106; the second device 12 integrates the right door control, the 4G / 5G connection to the cloud system for OTA upgrade, etc., and is connected to another diagnostic network for diagnosis and burning. This domain is directly linked to the external redundant 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 camera systems.

[0101] Fig.14 The data flow diagram 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 .

[0102] Each device plays three roles in this redundant communication, namely: sender (data source sending starting point), router and receiver (data receiving end point). The data flow sending rules of each device include but are not limited to the following description.

[0103] If it is the sender of the data set, 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.

[0104] If it is a data router, it is necessary to determine 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 that receives the data set, otherwise the data is destroyed. For example, after the first device 11 receives data from the first communication link 101, if it is determined 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 determined 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 determined 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.

[0105] If it is a data receiver, it receives and processes the data set, but does not send the data in the ring network. In this way, the sub-link forms 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. If any ring network is abnormal, it will not affect the communication interaction of each device.

[0106] like Fig.15 , is a data flow diagram for starting the inner trunk redundant network 105 when all the ring networks (including the first communication link 101, the second communication link 102, and the third communication link 103) connected by the first device 11 are abnormal; when there is no abnormality in the ring network, the inner trunk redundant network 105 does not perform data communication (special data can also be specified for communication); when all the ring networks connected to the first device 11 are abnormal, as shown in the figure, the first device 11 sends key data to the inner trunk redundant network 105, and other devices, after receiving the key data, also start the inner trunk redundant network 105 communication scheme, filter out specific data and communicate with the abnormal first device 11 through the inner trunk redundant network 105, and other normal devices in normal ring networks interact normally using the trunk ring network. There can be multiple abnormalities similar to those controlled by the first device 11 in the figure; but when all ring networks are abnormal, the specified key data cannot exceed the load range of the inner trunk redundant network 105, and the data should be designed in advance.

[0107] like Fig.16 When the first device 11 itself is abnormal or the internal redundant network 105 needs to be started and the internal redundant network 105 is also abnormal, the external redundant network 106 is started to enable key controllers such as braking and steering to communicate.

[0108] like Fig.17The present application also provides a communication method, which is applied to the aforementioned electronic and electrical system 10, wherein the aforementioned device can be used as a sender, a receiver and a router, and the communication method of the device may include:

[0109] The device obtains a data set from the communication link. At this time, the device can act as a receiver to receive data from the communication link and make judgments on the data after receiving the data.

[0110] 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, the data is sent to other devices through the communication link. The communication link in the present application constructs multiple ring networks. Therefore, the data sent by the device may be transmitted back to itself. When the data is transmitted back through the ring link, the data set may be wrong or may have been obtained by the recipient. The device will destroy the data set to prevent the data from circulating in the ring link.

[0111] If the data set is not correct, the device destroys the data set. When the data set is judged to be wrong, the data set can be destroyed to prevent the wrong data set from circulating between communication links and affecting the communication of the correct data set.

[0112] If the data set has been received by the device, the device destroys the data set. When the device receives the data set again, the data received for the first time has been processed (destroyed, received, or sent to another link, etc.). At this time, the data set received again is useless and will be destroyed.

[0113] If the device is the recipient of the data set, the device processes the data set as the recipient. If the device is not the recipient of the data set, the device sends the data set to other communication links. At this time, when the correctness of the data set is determined and the data set does have this device as the recipient, the data set can be received. When the data set does not have this device as the recipient, the device can be used as a router to transmit the data to other devices.

[0114] In some embodiments, the data set includes identification information, and the identification information is 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 makes it easy to determine the source of the data set, thereby facilitating the device in the electronic and electrical system to send, receive and identify the data set.

[0115] In addition, the data set includes data verification information, and the data verification information is used to indicate the correctness of the data set, so that the correctness of the data set can be easily judged to ensure the correctness and integrity of the data set.

[0116] In some embodiments, the identification information includes at least one of the MAC address (Media Access Control Address, i.e., physical address), IP address (Internet Protocol Address, i.e., Internet Protocol address), and server port number of the data set. Based on at least one of the MAC, IP address, and server port number of the data set, it can be determined whether the data set is issued by the device itself.

[0117] In addition, the data verification information includes a verification code, or the data verification information may also include a data freshness value based on the SecOC (Security Onboard Communication) specification of AUTOSAR (AUTomotive Open System Architecture). The correctness of the data set may be determined based on the data verification code or the data freshness value based on the SecOC specification of AUTOSAR.

[0118] A database received within a unit time may also be established, and the data set may be compared with the database to determine whether the data set has been received by the device; or based on the Ethernet specification or the destination MAC, it may be determined whether the data set has been received by the device.

[0119] According to an embodiment of the present application, a device includes a processor, the processor is connected to a memory, wherein the memory can store steps for implementing the aforementioned communication method, and the processor executes the steps of the aforementioned communication method when running. The device may be the aforementioned first device 11, second device 12, third device 13, fourth device 14, and fifth device 15.

[0120] In addition, the present invention also provides a memory, which stores a program executable by a processor, and the processor executes the program stored in the memory when running the program.

[0121] like Fig.18 The present application also provides a vehicle, including a signed electronic system; or including the aforementioned communication method; or including the aforementioned device.

[0122] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0123] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0124] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0125] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0126] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0127] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An electrical and electronic system (10) for a vehicle, characterized in that: The invention comprises a plurality of devices and a backbone communication network, wherein the plurality of devices comprises 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 between the first device (11) and the second device (12); the third communication link (103) is communicatively connected between the third device (13) and the first device (11); and the fourth communication link (104) is communicatively connected between the third device (13) and the second device (12).

2. The electronic and electrical system (10) according to claim 1, characterized in that: The electronic and electrical system (10) further includes an internal redundant network (105), wherein the internal redundant network (105) is communicatively connected to at least one of the plurality of devices; and / or the electronic and electrical system (10) further includes an external redundant network (106), wherein at least one of the plurality of devices includes a subnet having a controller, and the external redundant network (106) is communicatively connected to the subnet.

3. The electronic and electrical system (10) according to claim 1, characterized in that: The electronic and electrical system (10) further comprises an internal redundant network (105), wherein the internal redundant network (105) is communicatively connected to the first device (11), the second device (12) and the third device (13).

4. The electronic and electrical system (10) according to claim 1 or 3, characterized in that: The electronic and electrical system (10) further comprises an external redundant network (106), the first device (11) comprises a first subnet (1101) having a first controller (1102), and the external redundant network (106) communicatively connects the first subnet (1101) and the second device (12).

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

6. The electronic and electrical system (10) according to claim 5, characterized in that: The electronic and electrical system (10) further comprises an internal redundant network (105), wherein the internal redundant network (105) is communicatively connected to the first device (11), the second device (12), the third device (13) and the fourth device (14).

7. The electronic and electrical system (10) according to claim 5 or 6, characterized in that: The electronic and electrical system (10) further comprises an external redundant network (106), the first device (11) comprises a first subnet (1101) having a first controller (1102), the fourth device (14) comprises a fourth subnet (1401) having a fourth controller (1402), and the external redundant network (106) is communicatively connected to the first subnet (1101), the fourth subnet (1401) and the second device (12).

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

9. The electronic and electrical system (10) according to claim 8, characterized in that: The electronic and electrical system (10) further comprises an internal redundant network (105), wherein the internal redundant network (105) 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).

10. The electronic and electrical system (10) according to claim 8 or 9, characterized in that: The electronic and electrical system (10) further comprises an external redundant network (106), the first device (11) comprises a first subnet (1101) having a first controller (1102), the fourth device (14) comprises a fourth subnet (1401) having a fourth controller (1402), the fifth device (15) comprises a fifth subnet (1501) having a fifth controller (1502), and the external redundant network (106) is communicatively connected to the first subnet (1101), the fourth subnet (1401), the fifth subnet (1501) and the second device (12).

11. The electronic and electrical system (10) according to claim 8, characterized in that: The first device (11) is a left zone controller of the vehicle, the second device (12) is a right zone controller of the vehicle, the third device (13) is a cockpit zone controller of the vehicle, the fourth device (14) is a front zone controller of the vehicle, and the fifth device (15) is a rear zone controller of the vehicle.

12. The electronic and electrical system (10) according to claim 2, 3, 6 or 9, characterized in that: The backbone communication network is configured to realize communication between different components in the electronic and electrical system (10) when the electronic and electrical system (10) is in a first state; and the internal backbone redundant network (105) is configured to realize communication between different components in the electronic and electrical system (10) when the electronic and electrical system (10) is in a second state.

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

14. The electronic and electrical system (10) according to claim 2, 4, 7 or 10, characterized in that: The external redundant network (106) is configured to realize communication between different components in the electronic and electrical system (10) when the electronic and electrical system (10) is in a third state.

15. The electronic and electrical system (10) according to claim 14, characterized in that: The third state includes one or more devices being abnormal; or includes the need to start the internal redundant network (105) but the internal redundant network (105) is abnormal.

16. The electronic and electrical system (10) according to any one of claims 1 to 11, characterized in that: The device is configured as a sender, a router, and a receiver.

17. The electronic and electrical system (10) according to claim 1, characterized in that: 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 and electrical system (10) according to claim 1, characterized in that: 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 mode 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 mode of the fourth communication link (104) is one of Ethernet communication, CAN communication, optical fiber communication, WiFi communication, and Bluetooth communication.

19. A communication method, applied to the electronic and electrical system (10) according to any one of claims 1 to 18, characterized in that: include: The device obtains a data set from the communication link; If the data set is issued by the device itself, the device destroys the data set; If the correctness of the data set is no, 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 a receiver of the data set, the device processes the data set as a receiver; if the device is not a receiver of the data set, the device sends the data set to other communication links.

20. The communication method according to claim 19, characterized in that: The data set includes identification information, where the identification information is used to indicate a sender of the data set; and / or, The data set includes data verification information, and the data verification information is used to indicate the correctness of the data set.

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

22. A device comprising a processor, the processor being connected to a memory, and the processor implementing the steps of the communication method according to any one of claims 19 to 21 when executed.

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

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