A vehicle crash unlocking system, method, and vehicle

Abstract

The embodiment of the application provides a vehicle collision unlocking system, a method and a vehicle, and the vehicle collision unlocking system comprises a collision detection unit, a plurality of domain controllers and a plurality of door lock mechanisms; the collision detection unit is connected with any one of the plurality of domain controllers through at least two lines; and any one of the plurality of domain controllers is connected with at least one door lock mechanism. In this way, since the collision detection unit is connected with any one of the plurality of domain controllers through at least two lines, the collision signal can be sent to the domain controller connected with the collision detection unit through at least two lines different in communication mode, the redundant transmission of the collision signal is realized, the possibility of receiving the collision signal by the domain controller is improved, and therefore the safety of the vehicle is ensured. In addition, since the collision detection unit is connected with only one domain controller and not with all the controllers to establish redundant lines, the cost of the wire harness can be reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle safety technology, specifically to a vehicle collision unlocking system, method, and vehicle. Background Technology

[0002] Vehicles are typically locked while in motion. In the event of a collision, the vehicle doors need to be unlocked immediately to facilitate escape for occupants and rescue by those outside. However, a collision can damage the vehicle's wiring harness, potentially causing the vehicle controller communication to malfunction. This could result in failed unlocking and the inability to make emergency calls, hindering both occupants' escape and rescue efforts.

[0003] In related technologies, a vehicle collision unlocking system uses different controllers to control door unlocking, and two redundant lines are used between the collision detection unit and the controllers to ensure collision signal transmission and unlocking. However, incorporating the collision detection unit and all controllers into a single line results in high wiring costs, and parallel operation of two lines would be even more expensive. Furthermore, when a collision affects a node or section of the wiring harness, the communication of the entire line is interrupted, posing a significant safety hazard and compromising vehicle safety. Summary of the Invention

[0004] This application provides a vehicle collision unlocking system that can increase the probability of successfully unlocking the vehicle door when a collision occurs, thereby improving vehicle safety, and with lower wiring harness costs.

[0005] The technical solution of this application is implemented as follows:

[0006] This application provides a vehicle collision unlocking system, including: a collision detection unit, multiple domain controllers, and multiple door lock mechanisms; wherein,

[0007] The collision detection unit is connected to any one of the plurality of domain controllers via at least two lines. The collision detection unit is used to acquire collision signals and send the collision signals to the domain controllers connected to it via the at least two lines respectively; the communication methods corresponding to the at least two lines are different.

[0008] Any one of the plurality of domain controllers is connected to at least one door lock mechanism for driving the connected door lock mechanism to unlock the vehicle door based on the received collision signal.

[0009] According to the above technical means, since the collision detection unit is connected to any one of the multiple domain controllers via at least two lines, after acquiring a collision signal, the collision detection unit can send the collision signal to the connected domain controller via at least two lines with different communication methods. This achieves redundant transmission of the collision signal, increases the probability that the domain controller receives the collision signal, and drives the door lock mechanism to unlock the door, thereby ensuring vehicle safety. Furthermore, since the collision detection unit is only connected to any one of the multiple domain controllers, rather than establishing redundant lines with each controller, wiring harness costs can be reduced.

[0010] Furthermore, each of the multiple domain controllers includes a collision unlocking module. After receiving the collision signal, the domain controller drives the corresponding door lock mechanism to unlock the door through its own collision unlocking module.

[0011] Based on the aforementioned technical means, after receiving a collision signal, each controller can drive the door lock mechanism connected to the domain controller to unlock the car door based on its own collision unlocking module.

[0012] Furthermore, the plurality of domain controllers includes a first domain controller; the first domain controller and the collision detection unit are respectively connected through at least two first lines; the collision detection unit sends the collision signal to the first domain controller through each of the first lines, and the communication methods of each of the first lines are different.

[0013] Based on the above technical means, the collision detection unit can transmit collision signals to the first domain controller through first lines with different communication methods, thereby achieving redundant transmission of collision signals, increasing the probability that the first domain controller receives the collision signal, and thus increasing the probability that the door lock mechanism connected to the first domain controller can successfully unlock the door.

[0014] Furthermore, the plurality of domain controllers also includes a second domain controller; the first domain controller and the second domain controller are connected via at least two second lines respectively; the first domain controller sends the received collision signal to the second domain controller via each of the second lines, and / or the first domain controller sends a collision unlock command to the second domain controller via each of the second lines respectively; the collision unlock command is generated by the first domain controller based on the collision signal, and the collision signal and the collision unlock command can be sent via different second lines, and the communication methods of each of the second lines are different.

[0015] According to the above technical means, the first domain controller can transmit collision signals (and / or collision unlocking commands) to the second domain controller through second lines with different communication methods, thereby achieving redundant transmission of collision signals (and / or collision unlocking commands), increasing the probability that the second domain controller receives the collision signal (and / or collision unlocking command), and thus increasing the probability that the door lock mechanism connected to the second domain controller can successfully unlock the door.

[0016] Furthermore, the first domain controller includes a collision unlocking logic module, and the second domain controller includes a first door lock invocation module and a first collision unlocking module; the second domain controller includes a first door lock invocation module and a first collision unlocking module; the collision unlocking logic module generates the collision unlocking command based on the received collision signal, and sends the collision unlocking command to the first door lock invocation module through the second line; the first door lock invocation module, based on the received collision unlocking command, invokes the first collision unlocking module to drive the door lock mechanism connected to the second domain controller to perform door unlocking.

[0017] According to the above technical means, the collision unlocking logic module generates a collision unlocking command based on the received collision signal, and sends the collision unlocking command to the first door lock calling module through the second line. This enables the first door lock calling module of the second domain controller to call the first collision unlocking module according to the collision unlocking command, thereby realizing the door lock mechanism connected to the second domain controller to unlock the door.

[0018] Furthermore, the second domain controller includes a first collision unlocking module; after receiving the collision signal, the second domain controller drives the door lock mechanism connected to the second domain controller to unlock the door through the first collision unlocking module.

[0019] Based on the aforementioned technical means, the first collision unlocking module of the second domain controller can directly drive the door lock mechanism connected to the second domain controller to unlock the car door based on the obtained collision signal.

[0020] Furthermore, the first domain controller is connected to at least one door lock mechanism and is used to drive the at least one door lock mechanism to perform door unlocking based on the received collision signal; the second domain controller is connected to other door lock mechanisms excluding the door lock mechanism connected to the first domain controller and is used to drive other door lock mechanisms excluding the door lock mechanism connected to the first domain controller to perform door unlocking based on the received collision signal; or, the second domain controller is connected to each door lock mechanism respectively and is used to drive each door lock mechanism to perform door unlocking based on the received collision signal.

[0021] According to the above technical means, after receiving a collision signal, the first domain controller can drive the door lock mechanism connected to the first domain controller to unlock the door, and after receiving a collision signal, the second domain controller can drive the door lock mechanism connected to the second domain controller to unlock the door, thereby realizing the safe escape of vehicle occupants.

[0022] Furthermore, the plurality of domain controllers also includes a third domain controller; the third domain controller and the first domain controller are respectively connected via at least two third lines; the first domain controller sends the received collision signal to the third domain controller via each of the third lines, and / or the first domain controller sends the collision unlock command to the third domain controller via each of the third lines; the collision signal and the collision unlock command can be sent via different second lines, and the communication methods transmitted by each of the third lines are different.

[0023] According to the above technical means, the first domain controller can transmit collision signals (and / or collision unlocking commands) to the third domain controller through three third lines with different communication methods, thereby achieving redundant transmission of collision signals (and / or collision unlocking commands), increasing the probability that the third domain controller receives the collision signal (and / or collision unlocking command), and thus increasing the probability that the door lock mechanism connected to the third domain controller can successfully unlock the door.

[0024] Furthermore, the first domain controller includes a collision unlocking logic module, and the third domain controller includes a second door lock invocation module and a second collision unlocking module; the collision unlocking logic module generates the collision unlocking command based on the received collision signal, and sends the collision unlocking command to the second door lock invocation module through the third line; the second door lock invocation module, based on the received collision unlocking command, invokes the second collision unlocking module to drive the door lock mechanism connected to the third domain controller to perform door unlocking.

[0025] According to the above technical means, the collision unlocking logic module generates a collision unlocking command based on the received collision signal, and sends the collision unlocking command to the second door lock calling module through the third line. This enables the second door lock calling module of the third domain controller to call the second collision unlocking module according to the collision unlocking command, thereby realizing the door lock mechanism connected to the third domain controller to unlock the door.

[0026] Furthermore, the third domain controller includes a second collision unlocking module. After receiving the collision signal, the third domain controller drives the door lock mechanism connected to the third domain controller to unlock the door through the second collision unlocking module.

[0027] Based on the aforementioned technical means, the second collision unlocking module of the third domain controller can directly drive the door lock mechanism connected to the third domain controller to unlock the car door based on the obtained collision signal.

[0028] Furthermore, the third domain controller and the second domain controller are connected via a fourth line, and the second domain controller and the third domain controller transmit the collision signal via the fourth line.

[0029] According to the above technical means, when the second domain controller receives a collision signal, the second domain controller can send a collision signal to the third domain controller through the fourth line, or when the third domain controller receives a collision signal, the third domain controller can send a collision signal to the second domain controller through the fourth line, so as to ensure that the second domain controller and the third domain controller can successfully drive the corresponding door lock mechanism to unlock the door.

[0030] Furthermore, the first domain controller is connected to at least two of the plurality of door lock mechanisms, or the second domain controller is connected to at least two of the plurality of door lock mechanisms, or the third domain controller is connected to at least two of the plurality of door lock mechanisms.

[0031] Based on the aforementioned technical means, the first domain controller, the second domain controller, or the third domain controller can determine at least two door lock mechanisms connected to itself to unlock the vehicle door based on the received collision signal.

[0032] Furthermore, the vehicle collision unlocking system also includes: an emergency call controller; the emergency call controller is connected to the collision detection unit; the emergency call controller is used to output emergency rescue information based on the collision signal after receiving the collision signal sent by the collision detection unit.

[0033] Based on the aforementioned technical means, the emergency call controller can output emergency rescue information after receiving a collision signal sent by the collision detection unit, so as to promptly seek external assistance and improve vehicle safety.

[0034] Furthermore, the first domain controller and the emergency call controller are connected via at least two fifth lines respectively; the first domain controller sends the received collision signal to the emergency call controller via each of the fifth lines, and the communication methods of each fifth line are different.

[0035] According to the above technical means, the first domain controller can send the collision signal to the emergency call controller through each of the fifth lines, so that the emergency call controller can output emergency rescue information based on the collision signal and realize timely off-vehicle rescue.

[0036] Furthermore, any one of the plurality of domain controllers includes an emergency call unit; the emergency call unit is used to output emergency rescue information based on the collision signal after any one of the plurality of domain controllers receives the collision signal.

[0037] Based on the above technical means, by integrating an emergency call unit into any one of the multiple domain controllers, the controller can output emergency rescue information based on the emergency call unit after receiving a collision signal, thereby realizing off-vehicle rescue.

[0038] This application provides a vehicle collision unlocking method, which is applied to the vehicle collision unlocking system provided in this application. The method includes: after receiving a collision signal, the collision detection unit sends the collision signal to a domain controller connected to the collision detection unit through at least two lines; the communication methods corresponding to the at least two lines are different, and the domain controller is any one of a plurality of domain controllers; the domain controller drives the door lock mechanism connected to it to unlock the door based on the received collision signal.

[0039] According to the above technical means, the collision detection unit can send the collision signal to the domain controller connected to the collision detection unit through at least two lines with different communication methods, so as to realize the redundant transmission of the collision signal, increase the probability that the domain controller receives the collision signal, and thus drive the corresponding door lock mechanism to unlock the door and ensure the safety of the vehicle.

[0040] This application provides a vehicle that includes the vehicle collision unlocking system provided in this application.

[0041] The vehicle collision unlocking system provided in this application embodiment has two advantages. First, since the collision detection unit is connected to any one of the multiple domain controllers through at least two lines, after acquiring a collision signal, the collision detection unit can send the collision signal to the domain controller connected to it through at least two lines with different communication methods, thereby achieving redundant transmission of the collision signal and increasing the probability that the domain controller receives the collision signal, so as to drive the door lock mechanism to unlock the door and thus ensure the safety of the vehicle. Second, since the collision detection unit is only connected to any one of the multiple domain controllers, and does not establish redundant lines with each controller, the cost of wiring harnesses can be reduced. Attached Figure Description

[0042] Figure 1 A schematic diagram of the structure of a vehicle collision unlocking system provided in this application embodiment. Figure 1 ;

[0043] Figure 2 This application provides a schematic diagram of signal transmission between domain controllers.

[0044] Figure 3 A schematic diagram of the structure of a vehicle collision unlocking system provided in this application embodiment. Figure 2 ;

[0045] Figure 4 A schematic diagram of the structure of a vehicle collision unlocking system provided in this application embodiment. Figure 3 ;

[0046] Figure 5 A schematic diagram of a collision unlocking and emergency rescue call redundancy system provided in this application embodiment. Figure 1 ;

[0047] Figure 6 A schematic diagram of a collision unlocking and emergency rescue call redundancy system provided in this application embodiment. Figure 2 ;

[0048] Figure 7 A schematic diagram of a collision unlocking and emergency rescue call redundancy system provided in this application embodiment. Figure 3 ;

[0049] Figure 8 A schematic diagram of a collision unlocking and emergency rescue call redundancy system provided in this application embodiment. Figure 4 ;

[0050] Figure 9 This application provides a schematic diagram illustrating the transmission and invocation of collision signals between domain controllers.

[0051] Figure 10 A schematic flowchart illustrating a vehicle collision unlocking method provided in an embodiment of this application;

[0052] Figure 11 This is a schematic diagram of the composition structure of a vehicle provided in an embodiment of this application. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] In the following description, references to “some embodiments” or “other embodiments” describe a subset of all possible embodiments. However, it is understood that “some embodiments” or “other embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0055] In the following description, the terms “first, second, third, fourth, fifth” are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that “first, second, third, fourth, fifth” may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0057] Based on the problems existing in related technologies, this application proposes a vehicle collision unlocking system. This system can increase the probability of successfully unlocking the vehicle door when a collision occurs, thereby improving vehicle safety, and also has lower wiring harness costs. Figure 1 The diagram shown is a structural schematic of a vehicle collision unlocking system provided in an embodiment of this application. Figure 1 The vehicle collision unlocking system 100 includes: a collision detection unit 101, multiple domain controllers 102, and multiple door lock mechanisms 103.

[0058] In some embodiments, the collision detection unit 101 is connected to any one of the multiple domain controllers 102 via at least two lines. The collision detection unit 101 is used to acquire collision signals and send the collision signals to the domain controller 102 connected to it via at least two lines, wherein the communication methods corresponding to the at least two lines are different.

[0059] It should be noted that at least two lines may have different communication methods, such as different communication protocols, different line types, or different signal transmission methods. These lines can be hardwired, Controller Area Network (CAN), Ethernet, etc. The number of domain controllers 102 can be two or more. Domain controllers 102 can be body domain controllers, cockpit domain controllers, chassis domain controllers, powertrain domain controllers, etc.

[0060] In some embodiments, if there are two domain controllers 102, the collision detection unit 101 can be connected to any one of the two domain controllers 102 through at least two lines, and the obtained collision signal can be sent to the domain controller 102 connected to the collision detection unit 101 through each line.

[0061] In some embodiments, if there are three domain controllers 102, the collision detection unit 101 can be connected to any one of the three domain controllers 102 through at least two lines, and the obtained collision signal can be sent to the domain controller 102 connected to the collision detection unit 101 through each line.

[0062] It should be noted that the above description of the number of domain controllers 102 is merely illustrative and is not limited in this application.

[0063] In some embodiments, any one of the plurality of domain controllers 102 is connected to at least one door lock mechanism 103 for driving the door lock mechanism 103 connected thereto to unlock the door based on a received collision signal.

[0064] It should be noted that the domain controller 102 and the door lock mechanism 103 can be connected via hardwire, Ethernet, CAN bus, etc., and the number of door lock mechanisms 103 can be four, six, etc.

[0065] In some embodiments, if there are two domain controllers 102 and four door lock mechanisms 103, one of the two domain controllers 102 can connect to two door lock mechanisms 103, and the other domain controller can connect to the other two door lock mechanisms 103. If there are three domain controllers 102 and four door lock mechanisms 103, one of the three domain controllers 102 can connect to two door lock mechanisms, and the other two domain controllers 102 can each connect to one door lock mechanism 103. If there are four domain controllers 102 and six door lock mechanisms 103, two of the four domain controllers 102 can each connect to two door lock mechanisms 103, and the other two domain controllers 102 can each connect to one door lock mechanism 103. The number of domain controllers 102, the number of door lock mechanisms 103, and the connection method between the domain controllers 102 and the door lock mechanisms 103 are merely illustrative examples and are not limited in this application.

[0066] In some embodiments, after receiving a collision signal, the domain controller 102 can drive one or more door lock mechanisms 103 connected to it to unlock the doors according to the built-in collision unlocking software, thereby enabling the vehicle occupants to escape.

[0067] It is understood that, in this embodiment, since the collision detection unit 101 is connected to any one of the multiple domain controllers 102 via at least two lines, after acquiring a collision signal, the collision detection unit 101 can send the collision signal to the connected domain controller 102 via at least two lines with different communication methods, thereby achieving redundant transmission of the collision signal and increasing the probability that the domain controller receives the collision signal, thus driving the door lock mechanism to unlock the door and ensuring vehicle safety. Furthermore, since the collision detection unit is only connected to any one of the multiple domain controllers, and not to each controller with redundant lines, wiring harness costs can be reduced.

[0068] In some embodiments of this application, multiple domain controllers 102 include a collision unlocking module. After receiving a collision signal, the domain controller 102 drives the corresponding door lock mechanism to unlock the door through its own collision unlocking module.

[0069] In some embodiments, each domain controller 102 may include a collision unlocking module, which may be a basic software module of the domain controller 102. The collision unlocking module may include a collision unlocking logic module and a door lock driving module. The collision unlocking logic module may parse the received collision signal and generate a corresponding door lock driving command to be transmitted to the door lock driving module, so that the door lock driving module may directly drive the door lock mechanism connected to the domain controller to perform door unlocking.

[0070] According to the above technical means, after receiving a collision signal, each domain controller 102 can drive the door lock mechanism connected to the domain controller 102 to unlock the car door based on its own collision unlocking module.

[0071] In some embodiments, the domain controller 102 connected to the collision detection unit 101 includes a collision unlocking logic module, and other domain controllers 102 not connected to the collision detection unit include door lock invocation modules. The collision unlocking logic module can generate a collision command based on the received collision signal and send the collision unlocking command to the door lock invocation module of other domain controllers that have established a communication connection with its own domain controller, thereby invoking the door lock invocation module. The door lock invocation module can then transmit the invoked information to the collision unlocking module in its own domain controller, thereby driving the door lock mechanism connected to its own domain controller through the collision unlocking module to unlock the vehicle door.

[0072] In some embodiments of this application, a first domain controller 1021 is included among multiple domain controllers 102; the first domain controller 1021 and the collision detection unit 101 are respectively connected through at least two first lines; the collision detection unit 101 sends a collision signal to the first domain controller 1021 through each of the first lines, and the communication methods of each first line are different.

[0073] In some embodiments, the first lines between the first domain controller 1021 and the collision detection unit 101 are independent of each other; that is, collision signals are transmitted between the collision detection unit 101 and the first domain controller 1021 through the respective first lines without affecting each other. The types of the first lines are different; the first lines can be hardwired, CAN bus, Ethernet, etc. The first domain controller 1021 can be any one of the following domain controllers: body domain controller, cockpit domain controller, chassis domain controller, powertrain domain controller, etc.

[0074] For example, if the first line between the collision detection unit 101 and the first domain controller 1021 includes two lines, one line can be a hard wire, and the other line can be a CAN bus or an Ethernet. If the first line between the collision detection unit 101 and the first domain controller 1021 includes three lines, for example, the three first lines are line A, line B, and line C, then line A can be a hard wire, line B can be a CAN bus, and line C can be an Ethernet; or line A can be a hard wire, line B can be an Ethernet, and line C can be a CAN bus; or line A can be a CAN bus, line B can be a hard wire, and line C can be an Ethernet; or line A can be an Ethernet, line B can be a hard wire, and line C can be a CAN bus; or line A can be an Ethernet, line B can be a CAN bus, and line C can be a hard wire; or line A can be a CAN bus, line B can be an Ethernet, and line C can be a hard wire. The number and type of the first lines described here are merely illustrative examples, and this application does not limit them.

[0075] According to the above technical means, the collision detection unit 101 can transmit collision signals to the first domain controller 1021 through first lines with different communication methods, realize redundant transmission of collision signals, increase the probability that the first domain controller 1021 receives the collision signal, thereby increasing the probability that the door lock mechanism connected to the first domain controller 1021 can successfully unlock the door.

[0076] In some embodiments of this application, the plurality of domain controllers 102 further includes a second domain controller 1022; the first domain controller 1021 and the second domain controller 1022 are respectively connected through at least two second lines; the first domain controller 1021 sends the received collision signal to the second domain controller 1022 through each of the second lines; or, the first domain controller 1021 sends the collision unlock command to the second domain controller 1022 through each of the second lines; or, the first domain controller 1021 sends the collision signal and the collision unlock command to the second domain controller 1022 through each of the second lines, wherein the collision signal and the collision unlock command can be sent through different second lines, and the communication methods of each second line are different.

[0077] It should be noted that the second lines between the first domain controller 1021 and the second domain controller 1021 are independent of each other. Collision signals or collision unlock commands can be transmitted independently on each second line, and the transmission speed of the collision signal depends on the communication method of the second line. The types and communication protocols of the second lines are different. The second lines can be hardwired, CAN bus, Ethernet, etc. The types of the second lines and the first lines can be the same or different.

[0078] In some embodiments, when a collision signal and a collision unlock command are simultaneously transmitted through multiple second lines, some of the multiple second lines can transmit the collision signal, while other parts of the multiple second lines can transmit the collision unlock command. For example, if there are three second lines: line A, line B, and line C, then the collision signal can be transmitted through line A and line B, and the collision unlock command can be transmitted through line C. Furthermore, the communication methods or protocols of lines A, B, and C are different; the communication protocol of line A can be the CAN protocol, the communication protocol of line B can be the Ethernet first protocol, and the communication protocol of line C can be the Ethernet second protocol. The number of second lines, the data type (collision signal or collision unlock command) transmitted by each second line, and the communication protocol of each second line are merely illustrative examples and are not limited in this application.

[0079] In some embodiments, the second domain controller 1022 can be any one of a body domain controller, a cockpit domain controller, a chassis domain controller, a powertrain domain controller, etc. The second domain controller 1022 and the first domain controller 1021 can be of the same or different types. For example, both the first domain controller 1021 and the second domain controller 1022 can be body domain controllers; or, the first domain controller 1021 can be a body domain controller and the second domain controller 1022 can be a cockpit domain controller; or, the first domain controller 1021 can be a body domain controller and the second domain controller 1022 can be a chassis domain controller, etc. The types of the first domain controller 1021 and the second domain controller 1022 described herein are merely illustrative and are not intended to limit the scope of this application.

[0080] In some embodiments, the first domain controller 1021 is connected to the collision detection unit 101, and the second domain controller 1022 is not connected to the collision detection unit 101, but is only connected to the first domain controller 1021. Through the second line between the second domain controller 1022 and the first domain controller 1021, the second domain controller 1022 can receive the collision signal or collision unlock command sent by the first domain controller 1021.

[0081] According to the above technical means, the first domain controller 1021 can transmit collision signals (or collision unlocking commands) to the second domain controller 1022 through multiple second lines with different communication methods, realize redundant transmission of collision signals (or collision unlocking commands), increase the probability that the second domain controller 1022 receives the collision signal (or collision unlocking command), thereby increasing the probability that the door lock mechanism connected to the second domain controller 1022 can successfully unlock the car door.

[0082] In some embodiments of this application, such as Figure 2 As shown, the first domain controller 1021 includes a collision unlocking logic module 10211, and the second domain controller 1022 includes a first door lock invocation module 10221 and a first collision unlocking module 10222. The collision unlocking logic module 10211 generates a collision unlocking command based on the received collision signal and sends the collision unlocking command to the first door lock invocation module 10221 through a second line. Based on the received collision unlocking command, the first door lock invocation module 10222 invokes the first collision unlocking module 10222 to drive the door lock mechanism connected to the second domain controller 1022 to unlock the door.

[0083] In some embodiments, the collision unlocking logic module 10211 may be an application software module integrated in the first domain controller 1021, the first door lock invocation module 10221 may be an application software module integrated in the second domain controller 1022, and the first collision unlocking module 10222 may be a basic software module integrated in the second domain controller 1022. After the second domain controller 1022 receives a collision signal sent by the collision detection unit, it can generate a collision unlocking command. Through this collision unlocking command, it invokes the first door lock invocation module 10221 in the second domain controller 1022 and transmits the invocation information to the first collision unlocking module 10222, thereby unlocking the vehicle door.

[0084] According to the above technical means, the collision unlocking logic module generates a collision unlocking command based on the received collision signal, and sends the collision unlocking command to the first door lock calling module through the second line. This enables the first door lock calling module of the second domain controller to call the first collision unlocking module according to the collision unlocking command, thereby realizing the door lock mechanism connected to the second domain controller to unlock the door.

[0085] In some embodiments of this application, such as Figure 2 As shown, after receiving a collision signal, the second domain controller 1022 drives the door lock mechanism connected to the second domain controller 1022 to unlock the door through the first collision unlocking module 10222.

[0086] In some embodiments, the second domain controller 1022 can receive a collision signal sent from the first domain controller 1021, and the first collision unlocking module 10222, a software module built into the second domain controller 1022, can directly drive the door lock mechanism connected to the second domain controller 1022 to unlock the door based on the collision signal.

[0087] Based on the aforementioned technical means, the first collision unlocking module of the second domain controller can directly drive the door lock mechanism connected to the second domain controller to unlock the vehicle door based on the obtained collision signal.

[0088] In some embodiments of this application, a first domain controller 1021 is connected to at least one door lock mechanism for driving at least one door lock mechanism to perform door unlocking based on a received collision signal; a second domain controller 1022 is connected to other door lock mechanisms excluding the door lock mechanism connected to the first domain controller 1021 for driving other door lock mechanisms excluding the door lock mechanism connected to the first domain controller 1021 to perform door unlocking based on a received collision signal.

[0089] In some embodiments, the first domain controller 1021 can be connected to one or more door lock mechanisms. Upon receiving a collision signal from the collision detection unit 101, the first domain controller 1021 can directly drive one or more door lock mechanisms connected to it to unlock the vehicle door. The second domain controller 1022 can establish connections with other door lock mechanisms different from those connected to the first domain controller 1021. For example, if there are four door lock mechanisms, the first domain controller 1021 can establish connections with two of them, and the second domain controller 1022 can establish connections with the other two door lock mechanisms; or, the first domain controller 1021 can be connected to one of the door lock mechanisms, and the second domain controller 1022 can be connected to the other three; or, the first domain controller 1021 can be connected to three of the door lock mechanisms, and the second domain controller 1022 can be connected to the other one.

[0090] For example, such as Figure 3 The diagram shown is a structural schematic of a vehicle collision unlocking system provided in an embodiment of this application. Figure 2 In the vehicle collision unlocking system 100, if multiple door lock mechanisms 103 include a first door lock mechanism 1031, a second door lock mechanism 1032, a third door lock mechanism 1033, and a fourth door lock mechanism 1034, a first domain controller 1021 is connected to the first door lock mechanism 1031 and the second door lock mechanism 1032 respectively; and a second domain controller 1022 is connected to the third door lock mechanism 1033 and the fourth door lock mechanism 1034 respectively.

[0091] In some embodiments, the connection line between the first domain controller 1021 and the first door lock mechanism 1031 may have the same or different line type as the connection line between the first domain controller 1021 and the second door lock mechanism 1032; the connection line between the second domain controller 1022 and the third door lock mechanism 1033 may have the same or different line type as the connection line between the second domain controller 1022 and the fourth door lock mechanism.

[0092] In some embodiments, the first domain controller 1021 can drive the first door lock mechanism 1031 and the second door lock mechanism 1032 to unlock the doors based on the received collision signal; the second domain controller 1022 can drive the third door lock mechanism 1033 and the fourth door lock mechanism 1034 to unlock the doors based on the received collision signal.

[0093] For example, the first door lock mechanism 1031, the second door lock mechanism 1032, the third door lock mechanism 1033, and the fourth door lock mechanism 1034 can correspond to the left front door (driver's side), left rear door, right front door (passenger's side), and right rear door of the vehicle, respectively, or they can correspond to the left front door (driver's side), right front door (passenger's side), left rear door, and right rear door of the vehicle, respectively. After the first domain controller 1021 drives the first door lock mechanism 1031 and the second door lock mechanism 1032 connected to it to unlock, the doors corresponding to the first door lock mechanism 1031 and the second door lock mechanism 1032 will be opened; after the second domain controller 1022 drives the third door lock mechanism 1033 and the fourth door lock mechanism 1034 connected to it to unlock, the doors corresponding to the third door lock mechanism 1033 and the fourth door lock mechanism 1034 will be opened. This enables the safe escape of vehicle occupants.

[0094] In some embodiments, the second domain controller 1022 can be connected to each door lock mechanism separately to drive each door lock mechanism to unlock the door based on the received collision signal. In this case, the first domain controller 1021 is not connected to any door lock mechanism, but only transmits the received collision signal to the second domain controller 1022.

[0095] For example, if there are four door lock mechanisms, the second domain controller 1022 can establish a connection with all four door lock mechanisms. After receiving the collision signal sent by the collision detection unit 101, the first domain controller 1021 can send the collision signal to the second domain controller 1022. After receiving the collision signal, the second domain controller 1022 can directly drive the four door lock mechanisms connected to it to unlock the doors.

[0096] According to the above technical means, after receiving a collision signal, the first domain controller can drive the door lock mechanism connected to the first domain controller to unlock the door, and after receiving a collision signal, the second domain controller can drive the door lock mechanism connected to the second domain controller to unlock the door, thereby realizing the safe escape of vehicle occupants.

[0097] In some embodiments of this application, the plurality of domain controllers 102 further includes a third domain controller 1023; the third domain controller 1023 and the first domain controller 1021 are respectively connected through at least two third lines; the first domain controller 1021 sends the received collision signal to the third domain controller 1023 through each of the third lines; or, the first domain controller 1021 sends the collision unlock command to the third domain controller 1023 through each of the third lines; or, the first domain controller 1021 sends the collision signal and the collision unlock command to the third domain controller 1023 through each of the third lines, wherein the collision signal and the collision unlock command can be sent through different third lines, and the communication methods transmitted by each third line are different.

[0098] It should be noted that the third domain controller 1023 and the first domain controller 1021 can be the same or different, and the third domain controller 1023 and the second domain controller 1022 can be the same or different. The third line can be a hard wire, CAN bus, Ethernet, etc., and the types of each third line are different. The third lines between the second domain controller 1022 and the third domain controller 1023 are independent of each other, and collision signals or collision unlocking commands can be transmitted independently on each of the three lines. The line type of the third line can be the same as or different from the first and second lines. In some embodiments, the third line between the first domain controller 1021 and the third domain controller 1023 can include two, three, etc. If there are two third lines, one of them can be a hard wire, and the other can be an Ethernet or CAN bus; if there are three third lines, one of them is a hard wire, one is a CAN bus, and one is an Ethernet. The number and type of the third lines described here are merely illustrative and are not limited in this application.

[0099] In some embodiments, when both collision signals and collision unlocking commands are transmitted simultaneously through multiple third lines, some of the third lines can transmit collision signals, while other lines can transmit collision unlocking commands. For example, if there are two third lines, D and E, then collision unlocking commands can be transmitted through line D, and collision signals can be transmitted through line E. Lines D and E use different communication protocols; line E can use the CAN protocol, and line E can use the Ethernet protocol. The number of third lines, the data type (collision signal or collision unlocking command) transmitted by each third line, and the communication protocols of each third line are merely illustrative examples and are not limited in this application.

[0100] According to the above technical means, the first domain controller 1021 can transmit collision signals (or collision unlocking commands) to the third domain controller 1023 through three third lines with different communication methods, realize redundant transmission of collision signals (or collision unlocking commands), increase the probability that the third domain controller 1023 receives the collision signal (or collision unlocking command), thereby increasing the probability that the door lock mechanism connected to the third domain controller 1023 can successfully unlock the car door.

[0101] In some embodiments of this application, the first domain controller 1022 includes a collision unlocking logic module 10221, and the third domain controller 1023 includes a second door lock invocation module 10231 and a second collision unlocking module 10232. The collision unlocking logic module 10221 generates a collision unlocking command based on the received collision signal and sends the collision unlocking command to the second door lock invocation module 10231 through a third line. Based on the received collision unlocking command, the second door lock invocation module 10231 invokes the second collision unlocking module 10232 to drive the door lock mechanism connected to the third domain controller 1023 to unlock the door.

[0102] In some embodiments, the second door lock invocation module 10231 may be an application software module integrated in the second domain controller 1032, and the second collision unlocking module 10232 may be a basic software module integrated in the third domain controller 1023. After the third domain controller 1023 receives a collision signal sent by the collision detection unit, it can generate a collision unlocking command. Through this collision unlocking command, the second door lock invocation module 10231 in the third domain controller 1023 is invoked, and the invocation information is passed to the second collision unlocking module 10232, thereby unlocking the vehicle door.

[0103] According to the above technical means, the collision unlocking logic module generates a collision unlocking command based on the received collision signal, and sends the collision unlocking command to the second door lock calling module through the third line. This enables the second door lock calling module of the third domain controller to call the second collision unlocking module according to the collision unlocking command, thereby realizing the door lock mechanism connected to the third domain controller to unlock the door.

[0104] In some embodiments of this application, after receiving a collision signal, the third domain controller 1023 drives the door lock mechanism connected to the third domain controller 1023 to unlock the door through the second collision unlocking module 10232.

[0105] In some embodiments, the third domain controller 1023 can receive a collision signal sent from the first domain controller 1021, and the second collision unlocking module 10232, a software module built into the third domain controller 1023, can directly drive the door lock mechanism connected to the third domain controller 1023 to unlock the door based on the collision signal.

[0106] Based on the aforementioned technical means, the second collision unlocking module of the third domain controller can directly drive the door lock mechanism connected to the third domain controller to unlock the car door based on the obtained collision signal.

[0107] In some embodiments of this application, the third domain controller 1023 and the second domain controller 1022 are connected via a fourth line, and the second domain controller 1022 and the third domain controller 1023 transmit collision signals via the fourth line.

[0108] In some embodiments, the fourth line may be the same as or different from the first, second, and third lines. The fourth line may be a hard wire, an Ethernet wire, a CAN bus wire, or another type of wire.

[0109] In some embodiments, if all third lines between the first domain controller 1021 and the third domain controller 1023 fail, after receiving a collision signal from the first domain controller 1021, the second domain controller 1022 can send the collision signal to the third domain controller via a fourth line; if all second lines between the first domain controller 1021 and the second domain controller 1022 fail, after receiving a collision signal from the first domain controller 1021, the third domain controller 1023 can send the collision signal to the second domain controller via a fourth line, thereby realizing the mutual transmission of collision signals between the second domain controller 1022 and the third domain controller 1023.

[0110] According to the above technical means, when the second domain controller 1022 receives a collision signal, the second domain controller 1022 can send a collision signal to the third domain controller 1023 through the fourth line, or when the third domain controller 1023 receives a collision signal, the third domain controller 1023 can send a collision signal to the second domain controller 1022 through the fourth line, so as to ensure that the second domain controller 1022 and the third domain controller 1023 can successfully drive the corresponding door lock mechanism to unlock the door.

[0111] In some embodiments of this application, the first domain controller 1021 is connected to at least two of the multiple door lock mechanisms 103, or the second domain controller 1022 is connected to at least two of the multiple door lock mechanisms 103, or the third domain controller 1023 is connected to at least two of the multiple door lock mechanisms 103.

[0112] In some embodiments, the door lock mechanism 103 may include four: a first domain controller 1021 may be connected to two door lock mechanisms 103 respectively, and a second domain controller 1022 and a third domain controller 1023 may each be connected to a door lock mechanism 103; or, a second domain controller 1022 may be connected to two door lock mechanisms 103 respectively, and a first domain controller 1022 and a third domain controller 1023 may each be connected to a door lock mechanism 103; or, a third domain controller 1023 may be connected to two door lock mechanisms 103 respectively, and a first domain controller 1021 and a second domain controller 1022 may each be connected to a door lock mechanism 103; or, a first domain controller 1021 may be connected to two door lock mechanisms 103 respectively, a second domain controller 1022 may be connected to two other door lock mechanisms 103 respectively, and a third domain controller 1023 may not be connected to any of the door lock mechanisms 103. The number of door lock mechanisms 103 and the connection methods between door lock mechanisms 103 and the first domain controller 1021, the second domain controller 1022 and the third domain controller 1023 are merely illustrative examples and are not limited in this application.

[0113] According to the above technical means, the first domain controller 1021, the second domain controller 1022, or the third domain controller 1023 can determine at least two door lock mechanisms connected to itself to unlock the car door based on the received collision signal.

[0114] In some embodiments of this application, such as Figure 4 As shown, in the case where multiple door lock mechanisms 103 include a first door lock mechanism 1031, a second door lock mechanism 1032, a third door lock mechanism 1033, and a fourth door lock mechanism 1034, a first domain controller 1021 is connected to the first door lock mechanism 1031 and is used to drive the first door lock mechanism 1031 to perform door unlocking based on the received collision signal; a second domain controller 1022 is connected to the second door lock mechanism 1032 and is used to drive the second door lock mechanism 1032 to perform door unlocking based on the received collision signal; a third domain controller 1023 is connected to the third door lock mechanism 1033 and the fourth door lock mechanism 1034 respectively and is used to drive the third door lock mechanism 1033 and the fourth door lock mechanism 1034 to perform door unlocking based on the received collision signal.

[0115] In some embodiments, the first domain controller 1021 can be connected to the first door lock mechanism 1031 and the second door lock mechanism 1032 respectively, and is used to drive the first door lock mechanism 1031 and the second door lock mechanism 1032 to perform door unlocking based on the received collision signal; the second domain controller 1022 can be connected to the third door lock mechanism 1033, and is used to drive the third door lock mechanism 1033 to perform door unlocking based on the received collision signal; the third domain controller 1023 can be connected to the fourth door lock mechanism 1034, and is used to drive the fourth door lock mechanism 1034 to perform door unlocking based on the received collision signal.

[0116] In some embodiments, the first domain controller 1021 can be connected to the first door lock mechanism 1031 and is used to drive the first door lock mechanism 1031 to unlock the door based on the received collision signal; the second domain controller 1022 is connected to the second door lock mechanism 1032 and the third door lock mechanism 1033 respectively and is used to drive the second door lock mechanism 1032 and the third door lock mechanism 1033 to unlock the door based on the received collision signal; the third domain controller 1023 is connected to the fourth door lock mechanism 1034 and is used to drive the fourth door lock mechanism 1034 to unlock the door based on the received collision signal.

[0117] In some embodiments, the first domain controller 1021 can be connected to the first door lock mechanism 1031 and the second door lock mechanism 1032, and is used to drive the first door lock mechanism 1031 and the second door lock mechanism 1032 to perform door unlocking based on the received collision signal; the second domain controller 1022 is connected to the third door lock mechanism 1033 and the fourth door lock mechanism 1034 respectively, and is used to drive the third door lock mechanism 1033 and the fourth door lock mechanism 1034 to perform door unlocking based on the received collision signal.

[0118] Understandably, based on the aforementioned technical means, the first domain controller 1021 can drive the first door lock mechanism 1031 to unlock the door after receiving a collision signal, the second domain controller 1022 can drive the second door lock mechanism 1022 to unlock the door after receiving a collision signal, and the third domain controller 1023 can drive the third door lock mechanism 1033 and the fourth door lock mechanism 1034 to unlock the door after receiving a collision signal.

[0119] In some embodiments of this application, the vehicle collision unlocking system 100 may further include an emergency call controller 104, which is connected to the collision detection unit 101; the emergency call controller 104 is used to output emergency rescue information based on the collision signal after receiving the collision signal sent by the collision detection unit 101.

[0120] In some embodiments, the emergency call controller 104 and the collision detection unit 101 can be connected via hardwire, Ethernet, CAN bus, or other means. The emergency call controller 104 can be an emergency call (E-CALL) controller with Internet access. After receiving a collision signal from the collision detection unit 101, the emergency call controller 104 can output emergency rescue information. Outputting emergency rescue information can be by dialing an emergency rescue call or by voice outputting information requiring rescue to seek external assistance.

[0121] In some embodiments, the emergency call controller 104 can also be connected to the domain controller 102 via at least one line. When there are multiple lines between the emergency call controller 104 and the domain controller 102, the communication methods of each line are different. Through the connection line between the emergency call controller 104 and the domain controller 102, in the event of a failure in the connection line between the collision detection unit 101 and the domain controller 102, the emergency call controller 104 can send a collision signal to the domain controller 102, allowing the domain controller 102 to still receive the collision signal and drive the corresponding door lock mechanism 103 to unlock the door. Similarly, after a failure in the line between the collision detection unit 101 and the emergency call controller, the domain controller 102 can also send a collision signal to the emergency call controller 104, increasing the likelihood that the emergency call controller 104 will receive the collision signal.

[0122] Based on the above technical means, the emergency call controller 104 can output emergency rescue information after receiving the collision signal sent by the collision detection unit 101, so as to realize timely seeking of external rescue and improve vehicle safety.

[0123] In some embodiments of this application, the first domain controller 1021 can be connected to the emergency call controller 104 through at least two fifth lines respectively; the first domain controller 1021 sends the received collision signal to the emergency call controller 1021 through each fifth line respectively, and the communication methods of each fifth line are different.

[0124] It should be noted that the fifth line can be the same as or different from the first, second, third, and fourth lines. The types of the fifth lines can also differ; they can be hardwired, CAN bus, Ethernet, etc. Each fifth line is independent of the others.

[0125] In some embodiments, the first domain controller 1021 can send the collision signal obtained from the collision detection unit 103 to the emergency call controller 1021 via the fifth line; in other embodiments, if the first line between the collision detection unit 103 and the first domain controller 1021 fails, the emergency call controller 104 can also send the collision signal sent by the collision detection unit 103 to the first domain controller 1021 via the fifth line after receiving the collision signal, so that the first domain controller 1021 can drive the door lock mechanism connected to it to unlock the door after receiving the collision signal.

[0126] In some embodiments, such as Figure 3 As shown, the fifth line between the first domain controller 1021 and the emergency call controller 104 may include two lines, which can transmit collision signals simultaneously without affecting each other.

[0127] According to the above technical means, the first domain controller 1021 can send the collision signal to the emergency call controller 104 through each of the fifth lines, so that the emergency call controller 104 can output emergency rescue information based on the collision signal and realize timely off-vehicle rescue.

[0128] In some embodiments of this application, any one of the multiple domain controllers 102 includes an emergency call unit; the emergency call unit is used to output emergency rescue information based on the collision signal after any one of the multiple domain controllers 102 receives the collision signal.

[0129] In some embodiments, if the plurality of domain controllers 102 includes a first domain controller 1021, a second domain controller 1022, and a third domain controller 1023, then any one of the plurality of domain controllers 102 can be the first domain controller 1021, the second domain controller 1022, or the third domain controller 1023.

[0130] In some embodiments, if an emergency call unit is integrated in the first domain controller 1021, the emergency call unit in the first domain controller 1021 can output emergency rescue information when the first domain controller receives a collision signal; if an emergency call unit is integrated in the second domain controller 1022, the emergency call unit in the second domain controller 1022 can output emergency rescue information when the second domain controller 1022 receives a collision signal; if an emergency call unit is integrated in the third domain controller 1023, the emergency call unit in the third domain controller 1023 can output emergency rescue information when the third domain controller 1023 receives a collision signal.

[0131] According to the above technical means, the collision detection unit 101 can send the collision signal to the domain controller 102 connected to the collision detection unit through at least two lines with different communication methods, so as to realize the redundant transmission of the collision signal, increase the probability that the domain controller 102 receives the collision signal, thereby driving the corresponding door lock mechanism 103 to unlock the door and ensure the safety of the vehicle.

[0132] In some embodiments of this application, the collision detection unit 101 can be integrated into the domain controller 102, for example, into the first domain controller 1021. The first domain controller 1021 can then detect collision signals. After detecting a collision signal, the collision detection unit 101 in the first domain controller 1021 can send the collision signal to the second domain controller 1022 and / or the third domain controller 1023; or it can generate a collision unlock command based on the detected collision signal and send the generated collision unlock command to the first door lock calling module 10221 of the second domain controller 1022 and / or the second door lock calling module 10231 of the third domain controller 1023. Furthermore, the first domain controller 1021 can also send the detected collision signal to the emergency call controller 104 so that the emergency call controller 104 can output emergency call information.

[0133] It should be noted that in the vehicle distributed domain controller architecture, the multiple domain controllers 102 provided in this application embodiment may include more than just the first domain controller 1021, the second domain controller 1022, and the third domain controller 1023; that is, they may include more than three. Furthermore, without considering wiring harness costs, the first line, second line, third line, and fifth line mentioned in the aforementioned embodiments of this application may each include more than two lines, and each line can independently transmit collision signals.

[0134] The implementation process of the application embodiments in practical application scenarios is described below.

[0135] Figure 5 This is a schematic diagram of the structure of a collision unlocking and emergency rescue call redundancy system provided in an embodiment of this application. Figure 1 The collision unlocking and emergency rescue call redundancy system 200 includes a collision detection unit 201 (equivalent to "collision detection unit 101" in other embodiments), two domain controllers 202 (equivalent to "domain controller 102" in other embodiments), four door lock mechanisms 203 (equivalent to "door lock mechanism 103" in other embodiments), and an E-Call controller unit 204 (equivalent to "emergency call controller 104" in other embodiments).

[0136] The collision detection unit 201 is connected to the first domain controller 2021 (equivalent to "first domain controller 1021" in other embodiments) via sixth line A and sixth line B (equivalent to "at least two first lines" in other embodiments); a seventh line A and a seventh line B (equivalent to "at least two second lines" in other embodiments) are connected between the first domain controller 2021 and the second domain controller 2022 (equivalent to "first domain controller 1022" in other embodiments); the first domain controller 2021 is connected to the first door lock mechanism 2031 (equivalent to "first door lock mechanism" in other embodiments) via hard wires. The first domain controller 2021 is connected to the second door lock mechanism 2032 and the third door lock mechanism 2033 (equivalent to "third door lock mechanism 1033" in other embodiments); the second domain controller 2022 (equivalent to "second door lock mechanism 1032" in other embodiments) is connected to the second door lock mechanism 2032 and the fourth door lock mechanism 2034 (equivalent to "fourth door lock mechanism 1034" in other embodiments) respectively via hard wires; the E-Call controller 204 is connected to the collision detection unit 201 via the eighth line, and is connected to the first domain controller 2021 via the ninth line A and the ninth line B (equivalent to "at least two fifth lines" in other embodiments).

[0137] When a vehicle collision occurs, the collision detection unit 201 sends the collision signal to the first domain controller 2021 via the sixth line A and the sixth line B, and sends the collision signal to the E-Call controller 204 via the eighth line.

[0138] It should be noted that the sixth line A and the sixth line B are independent of each other; the collision signal is transmitted separately on the two lines and does not affect each other. If the sixth line A is damaged during a collision, the collision detection unit 201 can still transmit the collision signal to the first domain controller 2021 through the sixth line B; conversely, if the sixth line B is damaged during a collision, the collision detection unit 201 can still transmit the collision signal to the first domain controller 2021 through the sixth line A. This achieves redundancy in collision signal transmission and improves system security.

[0139] After receiving a collision signal, the first domain controller 2021 will use its built-in collision unlocking software to drive the first door lock mechanism 2031 and the third door lock mechanism 2033 to perform collision unlocking via hard wiring. At the same time, after software processing, the received collision signal will be sent to the second domain controller 2022 via the seventh line A and the seventh line B. The collision signal will then be sent to the E-Call controller 204 via the ninth line A and the ninth line B.

[0140] It should be noted that the seventh line A and the seventh line B are independent of each other, and the collision signal is transmitted separately on the two lines without affecting each other. If the seventh line A is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the second domain controller 2022 through the seventh line B; if the seventh line B is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the second domain controller 2022 through the seventh line A.

[0141] Meanwhile, lines A and B are independent of each other, and collision signals are transmitted separately on the two lines without affecting each other. If line A is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the E-Call controller 204 through line B; if line B is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the E-Call controller 204 through line A.

[0142] This achieves redundancy in collision signal transmission, improving system safety.

[0143] After receiving a collision signal, the second domain controller 2022 will use the built-in collision unlocking software to drive the second door lock mechanism 2032 and the fourth door lock mechanism 2034 to perform collision unlocking via hard wiring.

[0144] After receiving a collision signal, the E-Call controller 204 will dial an emergency rescue call, reporting the collision time and vehicle location, thus improving rescue efficiency.

[0145] According to the above system solution, even if the wiring harness is damaged to some extent during the collision, each domain controller can still drive the door lock mechanism to perform collision unlocking and dial an emergency rescue call, thereby improving system security.

[0146] Figure 6 This is a schematic diagram of the structure of a collision unlocking and emergency rescue call redundancy system provided in an embodiment of this application. Figure 2 The collision unlocking and emergency rescue call redundancy system 200 includes a collision detection unit 201, three domain controllers 202, four door lock mechanisms 203, and an E-Call controller 204.

[0147] The collision detection unit 201 is connected to the first domain controller 2021 via sixth line A and sixth line B; the first domain controller 2021 and the second domain controller 2022 are connected via seventh line A and seventh line B; the first domain controller 2021 and the third domain controller 2023 (equivalent to "third domain controller 1023" in other embodiments) are connected via tenth line A and tenth line B (equivalent to "at least two third lines" in other embodiments); the second domain controller 2022 and the third domain controller 2023 are connected via an eleventh line (equivalent to "fourth line" in other embodiments); the first domain controller 2021 is connected to the first door lock mechanism 2031 via a hard wire; the second domain controller 2022 is connected to the second door lock mechanism 2032 via a hard wire; the third domain controller 2023 is connected to the third door lock mechanism 2033 and the fourth door lock mechanism 2034 via hard wires respectively; the E-Call controller 204 is connected to the collision detection unit 201 via an eighth line and to the first domain controller 2021 via ninth line A and ninth line B.

[0148] When a vehicle collision occurs, the collision detection unit 201 sends the collision signal to the first domain controller 2021 via the sixth line A and the sixth line B, and sends the collision signal to the E-Call controller 204 via the eighth line.

[0149] It should be noted that the sixth line A and the sixth line B are independent of each other; the collision signal is transmitted separately on the two lines and does not affect each other. If the sixth line A is damaged during a collision, the collision detection unit 201 can still transmit the collision signal to the first domain controller 2021 through the sixth line B; conversely, if the sixth line B is damaged during a collision, the collision detection unit 201 can still transmit the collision signal to the first domain controller 2021 through the sixth line A. This achieves redundancy in collision signal transmission and improves system security.

[0150] After receiving a collision signal, the first domain controller 2021 will use its built-in collision unlocking software to drive the first door lock mechanism 2031 to perform collision unlocking via hard wiring. At the same time, after software processing, the received collision signal will be sent to the second domain controller 2022 via the seventh line A and the seventh line B, to the third domain controller 2023 via the tenth line A and the tenth line B, and to the E-Call controller 204 via the ninth line A and the ninth line B.

[0151] It should be noted that the seventh line A and the seventh line B are independent of each other, and the collision signal is transmitted separately on the two lines without affecting each other. If the seventh line A is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the second domain controller 2022 through the seventh line B; if the seventh line B is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the second domain controller 2022 through the seventh line A.

[0152] Meanwhile, the tenth line A and the tenth line B are independent of each other, and the collision signal is transmitted separately on the two lines without affecting each other. If the tenth line A is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the third domain controller 2023 through the tenth line B; if the tenth line B is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the third domain controller 2023 through the tenth line A.

[0153] Meanwhile, lines A and B are independent of each other, and collision signals are transmitted separately on the two lines without affecting each other. If line A is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the E-Call controller 204 through line B; if line B is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the E-Call controller 204 through line A.

[0154] In addition, there is an eleventh line between the second domain controller 2022 and the third domain controller 2023, which can also transmit collision signals.

[0155] After receiving a collision signal, the second domain controller 2022 will use the built-in collision unlocking software to drive the second door lock mechanism 2032 to perform collision unlocking via hard wiring; at the same time, after software processing, the received collision signal will be sent to the third domain controller 2023 via the eleventh line.

[0156] After receiving a collision signal, the third domain controller 2023 will use its built-in collision unlocking software to drive the third door lock mechanism 2033 and the fourth door lock mechanism 2034 to perform collision unlocking via hard wiring. At the same time, after software processing, the received collision signal will be sent to the second domain controller 2022 via the eleventh line.

[0157] With the redundancy guarantee of the thirteenth line, if the seventh line A, seventh line B, and tenth line A are all damaged during a collision, the third domain controller 2023 can still receive a collision signal from the tenth line B and drive the third door lock mechanism 2033 and the fourth door lock mechanism 2034 to unlock. Then, the collision signal is sent to the second domain controller 2022 via the eleventh line, ensuring the second door lock mechanism 2032 is unlocked. Similarly, if the seventh line A, seventh line B, and tenth line B are all damaged during a collision, the third domain controller 2023 can still receive a collision signal from the tenth line A and drive the third door lock mechanism 2033 and the fourth door lock mechanism 2034 to unlock. Then, the collision signal is sent to the second domain controller 2022 via the eleventh line, ensuring the second door lock mechanism 2032 is unlocked. 2032 unlocks; if the seventh line A, tenth line A, and tenth line B are all damaged during the collision, the second domain controller 2022 can also receive the collision signal from the seventh line B and drive the second door lock mechanism 2032 to unlock, and then send the collision signal to the third domain controller 2023 through the eleventh line to ensure that the third door lock mechanism 2033 and the fourth door lock mechanism 2034 are unlocked; if the seventh line B, tenth line A, and tenth line B are all damaged during the collision, the second domain controller 2022 can also receive the collision signal from the seventh line A and drive the second door lock mechanism 2032 to unlock, and then send the collision signal to the third domain controller 2023 through the eleventh line to ensure that the third door lock mechanism 2033 and the fourth door lock mechanism 2034 are unlocked.

[0158] After receiving a collision signal, the E-Call controller 204 will dial an emergency rescue call, reporting the collision time and vehicle location, thus improving rescue efficiency.

[0159] Figure 7 A schematic diagram of a collision unlocking and emergency rescue call redundancy system provided in this application embodiment. Figure 3 The collision unlocking and emergency rescue call redundancy system 200 includes a collision detection unit 201, three domain controllers 202, four door lock mechanisms 203, and an E-Call controller 204.

[0160] The collision detection unit 201 is connected to the first domain controller 2021 via the sixth line A and the sixth line B; the first domain controller 2021 and the second domain controller 2022 are connected via the seventh line A and the seventh line B; the first domain controller 2021 and the third domain controller 2023 are connected via the tenth line A and the tenth line B; the second domain controller 2022 and the third domain controller 2023 are connected via the eleventh line; the first domain controller 2021 is connected to the first door lock mechanism 2031 and the third door lock mechanism 2033 via hard wires; the second domain controller 2022 is connected to the second door lock mechanism 2032 and the fourth door lock mechanism 2034 via hard wires respectively; the E-Call controller 204 is connected to the collision detection unit 201 via the eighth line and to the first domain controller 2021 via the ninth line A and the ninth line B.

[0161] When a vehicle collision occurs, the collision detection unit 201 sends the collision signal to the first domain controller 2021 via the sixth line A and the sixth line B, and sends the collision signal to the E-Call controller 204 via the eighth line.

[0162] It should be noted that the sixth line A and the sixth line B are independent of each other; the collision signal is transmitted separately on the two lines and does not affect each other. If the sixth line A is damaged during a collision, the collision detection unit 201 can still transmit the collision signal to the first domain controller 2021 through the sixth line B; conversely, if the sixth line B is damaged during a collision, the collision detection unit 201 can still transmit the collision signal to the first domain controller 2021 through the sixth line A. This achieves redundancy in collision signal transmission and improves system security.

[0163] After receiving a collision signal, the first domain controller 2021 will use its built-in collision unlocking software to drive the first door lock mechanism 2031 and the third door lock mechanism 2033 to perform collision unlocking via hard wiring. At the same time, after software processing, the received collision signal will be sent to the second domain controller 2022 via the seventh line A and the seventh line B, to the third domain controller 2023 via the tenth line A and the tenth line B, and to the E-Call controller 204 via the ninth line A and the ninth line B.

[0164] It should be noted that lines A and B are independent of each other, and the collision signal is transmitted separately on the two lines without affecting each other. If line A is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the second domain controller 2022 through line B; if line B is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the second domain controller 2022 through line A.

[0165] Meanwhile, the tenth line A and the tenth line B are independent of each other, and the collision signal is transmitted separately on the two lines without affecting each other. If the tenth line A is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the third domain controller 2023 through the tenth line B; if the tenth line B is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the third domain controller 2023 through the tenth line A.

[0166] Meanwhile, lines A and B are independent of each other, and collision signals are transmitted separately on the two lines without affecting each other. If line A is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the E-Call controller 204 through line B; if line B is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the E-Call controller 204 through line A.

[0167] In addition, there is an eleventh line between the second domain controller 2022 and the third domain controller 2023, which can also transmit collision signals.

[0168] After receiving a collision signal, the second domain controller 2022 will use its built-in collision unlocking software to drive the second door lock mechanism 2032 and the fourth door lock mechanism 2034 to perform collision unlocking via hard wiring; at the same time, after software processing, the received collision signal will be sent to the third domain controller 2023 via the seventh line.

[0169] After processing by software, the third domain controller 2023 sends the received collision signal to the second domain controller 2022 via the eleventh line.

[0170] With the redundancy guarantee of the eleventh line, if the seventh line A, the seventh line B, and the tenth line A are all damaged during the collision, the third domain controller 2023 can still receive the collision signal from the tenth line B, and then send the collision signal to the second domain controller 2022 through the eleventh line to ensure that the second door lock mechanism 2032 and the fourth door lock mechanism 2034 are unlocked; if the seventh line A, the seventh line B, and the tenth line B are all damaged during the collision, the third domain controller 2023 can still receive the collision signal from the tenth line A, and then send the collision signal to the second domain controller 2022 through the eleventh line to ensure that the second door lock mechanism 2032 and the fourth door lock mechanism 2034 are unlocked.

[0171] After receiving a collision signal, the E-Call controller 204 will dial an emergency rescue call, reporting the collision time and vehicle location, thus improving rescue efficiency.

[0172] Figure 8 This is a schematic diagram of the structure of a collision unlocking and emergency rescue call redundancy system provided in an embodiment of this application. Figure 4 The collision unlocking and emergency rescue call redundancy system 200 includes a collision detection unit 201, three domain controllers 202, four door lock mechanisms 203, and an E-Call controller 204, and the communication methods between the units are also clearly defined.

[0173] The collision detection unit 201 is connected to the first domain controller 2021 via a hardwire and CAN1; there is a CAN2 and Ethernet1 connection between the first domain controller 2021 and the second domain controller 2022; there is a CAN3 and Ethernet2 connection between the first domain controller 2021 and the third domain controller 2023; there is an Ethernet3 connection between the second domain controller 2022 and the third domain controller 2023; the first domain controller 2021 is connected to the first door lock mechanism 2031 via a hardwire; the second domain controller 2022 is connected to the second door lock mechanism 2032 via a hardwire; the third domain controller 2023 is connected to the third door lock mechanism 2033 and the fourth door lock mechanism 2034 via hardwires respectively; the E-Call controller 204 is connected to the collision detection unit 201 via a hardwire and to the first domain controller 2021 via CAN4 and Ethernet4.

[0174] When a vehicle collision occurs, the collision detection unit 201 sends the collision signal to the first domain controller 2021 via a hard wire and CAN1, and sends the collision signal to the E-Call controller 204 via a hard wire.

[0175] It should be noted that the hardwire and CAN1 are independent of each other; the collision signal is transmitted separately on the two lines and does not affect each other. If the hardwire is damaged during a collision, the collision detection unit 201 can still transmit the collision signal to the first domain controller 2021 via CAN1; similarly, if CAN1 is damaged during a collision, the collision detection unit 201 can still transmit the collision signal to the first domain controller 2021 via the hardwire. This achieves redundancy in collision signal transmission and improves system security.

[0176] After receiving the collision signal, the first domain controller 2021 will use the built-in collision unlocking software to drive the first door lock mechanism 2031 to perform collision unlocking via hard wiring. At the same time, after software processing, the received collision signal will be sent to the second domain controller 2022 via CAN2 and Ethernet1, to the third domain controller 2023 via CAN3 and Ethernet2, and to the E-Call controller 204 via CAN4 and Ethernet4.

[0177] It should be noted that CAN2 and Ethernet1 are independent of each other, and the collision signal is transmitted separately on the two lines without affecting each other. If CAN2 is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the second domain controller 2022 through Ethernet1; if Ethernet1 is damaged during the collision, the first domain controller 2021 can still transmit the collision signal to the second domain controller 2022 through CAN2.

[0178] Meanwhile, CAN3 and Ethernet2 are independent of each other, with collision signals transmitted separately on the two lines without affecting each other. If CAN3 is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the third domain controller 2023 via Ethernet2; if Ethernet2 is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the third domain controller 2023 via CAN3.

[0179] Meanwhile, CAN4 and Ethernet4 are independent of each other, with collision signals transmitted separately on the two lines without affecting each other. If CAN4 is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the E-Call controller 204 via Ethernet4; if Ethernet4 is damaged during a collision, the first domain controller 2021 can still transmit the collision signal to the E-Call controller 204 via CAN4.

[0180] In addition, there is an Ethernet 3 connection between the second domain controller 2022 and the third domain controller 2023, which can also transmit collision signals.

[0181] After receiving a collision signal, the second domain controller 2022 will use its built-in collision unlocking software to drive the second door lock mechanism 2032 via hardwired to perform collision unlocking; at the same time, after software processing, the received collision signal will be sent to the third domain controller 2023 via Ethernet 3.

[0182] After receiving a collision signal, the third domain controller 2023 will use its built-in collision unlocking software to drive the third door lock mechanism 2033 and the fourth door lock mechanism 2034 to perform collision unlocking via hard wiring. At the same time, after software processing, the received collision signal will be sent to the second domain controller 2022 via Ethernet 3.

[0183] With the redundancy guarantee of Ethernet 3, if CAN2, Ethernet 1, and CAN3 are all damaged during a collision, the third domain controller 2023 can still receive the collision signal from Ethernet 2 and drive the third door lock mechanism 2033 and the fourth door lock mechanism 2034 to unlock. Then, it sends the collision signal to the second domain controller 2022 via Ethernet 3, ensuring the second door lock mechanism 2032 is unlocked. Similarly, if CAN2, Ethernet 1, and Ethernet 2 are all damaged during a collision, the third domain controller 2023 can still receive the collision signal from CAN3 and drive the third door lock mechanism 2033 and the fourth door lock mechanism 2034 to unlock. Then, it sends the collision signal to the second domain controller 2022 via Ethernet 3, ensuring the second door lock mechanism 2032 is unlocked. 032 unlocks; if CAN2, CAN3, and Ethernet2 are all damaged during the collision, the second domain controller 2022 can also receive the collision signal from Ethernet1 and drive the second door lock mechanism 2032 to unlock, and then send the collision signal to the third domain controller 2023 through Ethernet3 to ensure that the third door lock mechanism 2033 and the fourth door lock mechanism 2034 are unlocked; if Ethernet1, CAN3, and Ethernet2 are all damaged during the collision, the second domain controller 2022 can also receive the collision signal from CAN2 and drive the second door lock mechanism 2032 to unlock, and then send the collision signal to the third domain controller 2023 through Ethernet3 to ensure that the third door lock mechanism 2033 and the fourth door lock mechanism 2034 are unlocked.

[0184] After receiving a collision signal, the E-Call controller 204 will dial an emergency rescue call, reporting the collision time and vehicle location, thus improving rescue efficiency.

[0185] Figure 9This diagram illustrates the transmission and invocation of collision signals between domain controllers, as provided in an embodiment of this application. When a collision occurs, the first domain controller 2021, the second domain controller 2022, and the third domain controller 2023 transmit collision signals via CAN protocol and Ethernet first communication protocol. Subsequently, each domain controller unlocks its controller through software integrated into its basic software. Furthermore, upon receiving the collision signal, the first domain controller 2021, in addition to forwarding the collision signal to the second and third domain controllers 2022 and 2023, also directly invokes the software of other controllers with attached door lock mechanisms via Ethernet second communication protocol to perform unlocking (through the application software of the first domain controller 2021). The collision unlocking logic module sends instructions to the door lock calling module of the second domain controller 1022 (equivalent to the "first door lock calling module 10221" in other embodiments) and the door lock calling module of the third domain controller 1023 (equivalent to the "second door lock calling module 10231" in other embodiments). After receiving the calling instruction, the door lock calling modules of the second domain controller 1022 and the third domain controller 1023 can pass it to the collision unlocking logic module in their respective basic software, and drive the corresponding door lock mechanism through their respective door lock driver modules to unlock the car door. That is, the collision signal is forwarded through the first Ethernet communication protocol, and the unlocking is driven through the calling interface of the second Ethernet communication protocol. The two Ethernet communication protocols are also independent and redundant with each other. If the first communication protocol stack of the controller fails during the collision, the second protocol can still guarantee unlocking; if the second communication protocol stack of the controller fails during the collision, the first protocol can still guarantee unlocking. The above Ethernet protocol can be a Scalable Service-Oriented Middleware over IP (SOME-IP) protocol, a Data Distribution Service (DDS) protocol, etc.

[0186] The collision unlocking and emergency rescue call redundancy system provided in this application embodiment utilizes multi-line redundancy and multi-protocol redundancy between controllers to increase the probability of successfully unlocking the doors and dialing an emergency rescue call when a vehicle is involved in a collision. Even if some wiring harnesses are damaged in the collision or some controllers are affected by the collision, the vehicle can still unlock all four doors and dial an emergency rescue call, ensuring timely escape of vehicle occupants and timely rescue from outside the vehicle, greatly improving vehicle safety.

[0187] This application provides a vehicle collision unlocking method, applied to a vehicle collision unlocking system 100 provided in this application. The vehicle collision unlocking system 100 includes: a collision detection unit 101, multiple domain controllers 102, and multiple door lock mechanisms 103. Figure 10As shown, the vehicle collision unlocking method includes the following steps:

[0188] S301 After receiving a collision signal, the collision detection unit 101 sends the collision signal to the domain controller 102 connected to the collision detection unit through at least two lines.

[0189] It should be noted that at least two lines correspond to different communication methods. Each line can be a hardwired line, Ethernet, or CAN bus, etc. Domain controller 102 can be any one of multiple domain controllers.

[0190] In some embodiments, when a vehicle is involved in a collision, the collision detection unit 101 can detect a collision signal, which is used to indicate that a collision event has occurred. After receiving the collision signal, the collision detection unit 101 can send the collision signal to the domain controller 102 connected to it through each line.

[0191] In some embodiments, there may be two or more lines between the collision detection unit 101 and the domain controller 102 connected thereto. After detecting a collision signal, the collision detection unit 101 can send the collision signal to the corresponding domain controller 102 simultaneously through each line. The lines do not affect each other. In practice, due to the different communication methods of different lines, the time it takes for the collision signal to reach the domain controller 102 may be different.

[0192] S302, the domain controller 102 drives the door lock mechanism 103 connected to it to unlock the door based on the received collision signal.

[0193] In some embodiments, the door lock mechanism 103 connected to the domain controller 102 may include one or more. When the door lock mechanism connected to the domain controller 102 includes multiple door lock mechanisms, the domain controller 102 can transmit the collision signal to each door lock mechanism 103 simultaneously after receiving the collision signal.

[0194] In the vehicle collision unlocking method provided in this application embodiment, the collision detection unit 101 sends the collision signal to the domain controller 102 connected to the collision detection unit through at least two lines, so that even if some lines between the collision detection unit and the domain controller 102 fail, the collision signal can still be successfully transmitted, which increases the probability that the domain controller 102 will receive the collision signal. Furthermore, the domain controller 102 can drive the corresponding door lock mechanism 103 based on the received collision signal, thereby improving the vehicle's safety.

[0195] In some embodiments, if the vehicle collision unlocking system 100 includes an emergency call controller 104, after the collision detection unit 101 detects a collision signal, it can also send the collision signal to the emergency call controller 104 connected to it. After receiving the collision signal sent by the collision detection unit 101, the emergency call controller 104 outputs emergency rescue information based on the collision signal.

[0196] In some embodiments, if a first domain controller 1021 is included among the multiple domain controllers 102, and the first domain controller 1021 and the collision detection unit 103 are respectively connected through at least two first lines, after the collision detection unit 101 detects a collision signal, it can send the collision signal to the first domain controller 1021 through each of the first lines, so that the first domain controller 1021 drives the door lock mechanism 103 connected to it to perform door unlocking based on the collision signal.

[0197] In some embodiments, if the plurality of domain controllers 102 further includes a second domain controller 1022, the first domain controller 1021 and the second domain controller 1022 are connected to each other through at least two second lines. After receiving a collision signal, the first domain controller 1021 can send the received collision signal to the second domain controller 1022 through each of the second lines, so that the second domain controller 1022 can drive the door lock mechanism 103 connected to it to unlock the door based on the collision signal.

[0198] In some embodiments, if the plurality of door lock mechanisms 103 include a first door lock mechanism 1031, a second door lock mechanism 1032, a third door lock mechanism 1033, and a fourth door lock mechanism 1034, a first domain controller 1021 is connected to the first door lock mechanism 1031 and the second door lock mechanism 1032, and a second domain controller 1022 is connected to the third door lock mechanism 1033 and the fourth door lock mechanism 1034, then after receiving a collision signal, the first domain controller 1021 can drive the first door lock mechanism 1031 and the second door lock mechanism 1032 to unlock the doors based on the collision signal; after receiving a collision signal, the second domain controller 1021 can drive the third door lock mechanism 1033 and the fourth door lock mechanism 1034 to unlock the doors based on the collision signal.

[0199] In some embodiments, if the plurality of domain controllers 102 further includes a third domain controller 1023, the third domain controller 1023 and the first domain controller 1021 are respectively connected through at least two third lines. After receiving a collision signal, the first domain controller 1021 can send the received collision signal to the third domain controller 1023 through each of the third lines, so that the third domain controller 1023 drives the door lock mechanism 103 connected to it to perform door unlocking based on the collision signal.

[0200] In some embodiments, if the third domain controller 1023 and the second domain controller 1022 are connected via a fourth line, the third domain controller 1023 can send the received collision signal to the second domain controller 1022 via the fourth line, so that the second domain controller 1022 can drive the door lock mechanism 103 connected to it to unlock the door based on the collision signal; or, the third domain controller 1022 can receive the collision signal sent by the second domain controller 1022 via the fourth line, so that the third domain controller 1023 can drive the door lock mechanism 103 connected to it to unlock the door based on the collision signal.

[0201] In some embodiments, if the plurality of door lock mechanisms 103 include a first door lock mechanism 1031, a second door lock mechanism 1032, a third door lock mechanism 1033, and a fourth door lock mechanism 1034, a first domain controller 1021 is connected to the first door lock mechanism 1031, a second domain controller 1022 is connected to the second door lock mechanism 1032, and a third domain controller 1023 is connected to the third door lock mechanism 1033 and the fourth door lock mechanism 1034 respectively. Then, after receiving a collision signal, the first domain controller 1021 can drive the first door lock mechanism 1031 to unlock the door based on the collision signal; the second domain controller 1022 can drive the second door lock mechanism 1032 to unlock the door based on the collision signal; and the third domain controller 1023 can drive the third door lock mechanisms 1033 and 1034 to unlock the door based on the collision signal.

[0202] In some embodiments, if the first domain controller 1021 and the emergency call controller 104 are connected through at least two fifth lines respectively, the first domain controller 1021 can send the collision signal to the emergency call controller 104 through each of the fifth lines after receiving the collision signal, so that the emergency call controller 104 can output emergency rescue information based on the collision signal.

[0203] In some embodiments, if any one of the multiple domain controllers 102 includes an emergency call unit, then after the controller domain receives a collision signal, the emergency call unit can output emergency rescue information based on the received collision signal.

[0204] The vehicle collision unlocking method provided in this application improves the vehicle safety by redundantly transmitting collision signals between the collision detection unit 101 and the domain controller 102, between each domain controller 102, and between the domain controller 102 and the emergency call controller 104, thereby increasing the likelihood of successfully unlocking the vehicle door and outputting emergency rescue information when a collision occurs.

[0205] It should be noted that the description of the vehicle collision unlocking method in this application embodiment is similar to the description of the corresponding system embodiment described above, and has similar beneficial effects as the system embodiment; therefore, it will not be repeated. For technical details not disclosed in this method embodiment, please refer to the description of the system embodiment of this application for understanding.

[0206] This application provides an embodiment of a vehicle, such as... Figure 11 As shown, the vehicle 400 includes the vehicle collision unlocking system 100 provided in this application embodiment. By including the above-described vehicle collision unlocking system 100, the probability of successfully unlocking the vehicle door when a collision occurs can be increased, thereby improving vehicle safety.

[0207] It should be understood that the phrase "some embodiments" mentioned throughout the specification means that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, "some embodiments" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this application, the sequence numbers of the above-described processes do not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. The sequence numbers of the above-described embodiments are merely descriptive and do not represent the superiority or inferiority of the embodiments.

[0208] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0209] In the several embodiments provided in this application, it should be understood that the disclosed systems and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0210] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0211] In addition, each functional unit in the various embodiments of this application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0212] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vehicle collision unlocking system, characterized in that, include: The system includes a collision detection unit, multiple domain controllers, and multiple door lock mechanisms; among which, The collision detection unit is connected to any one of the plurality of domain controllers via at least two lines. The collision detection unit is used to acquire collision signals and send the collision signals to the domain controllers connected to it via the at least two lines respectively. The communication methods corresponding to the at least two lines are different. The plurality of domain controllers includes at least a first domain controller and a second domain controller. The first domain controller includes a collision unlocking logic module, and the second domain controller includes a first door lock calling module and a first collision unlocking module. Any one of the plurality of domain controllers is connected to at least one door lock mechanism for driving the door lock mechanism connected thereto to unlock the vehicle door based on the received collision signal; The collision unlocking logic module generates a collision unlocking command based on the received collision signal, and sends the collision unlocking command to the first door lock calling module through the second line; the second line is the communication line between the first domain controller and the second domain controller; Based on the received collision unlock command, the first door lock invocation module invokes the first collision unlock module to drive the door lock mechanism connected to the second domain controller to perform door unlocking.

2. The vehicle collision unlocking system according to claim 1, characterized in that, Each of the multiple domain controllers includes a collision unlocking module. After receiving the collision signal, the domain controller drives the corresponding door lock mechanism to unlock the door through its own collision unlocking module.

3. The vehicle collision unlocking system according to claim 1 or 2, characterized in that, The first domain controller and the collision detection unit are connected via at least two first lines respectively; The collision detection unit sends the collision signal to the first domain controller through each of the first lines, and the communication methods of each of the first lines are different.

4. The vehicle collision unlocking system according to claim 3, characterized in that, The first domain controller and the second domain controller are connected via at least two second lines respectively; The first domain controller sends the received collision signal to the second domain controller through each of the second lines, and / or the first domain controller sends a collision unlock command to the second domain controller through each of the second lines; The collision unlock command is generated by the first domain controller based on the collision signal. The collision signal and the collision unlock command can be sent through different second lines, and the communication methods of each second line are different.

5. The collision unlocking system according to claim 4, characterized in that, The second domain controller includes a first collision unlocking module. After receiving the collision signal, the second domain controller drives the door lock mechanism connected to the second domain controller to unlock the door through the first collision unlocking module.

6. The vehicle collision unlocking system according to claim 4, characterized in that, The first domain controller is connected to at least one door lock mechanism and is configured to drive the at least one door lock mechanism to unlock the door based on the received collision signal; the second domain controller is connected to other door lock mechanisms excluding the door lock mechanism connected to the first domain controller and is configured to drive the other door lock mechanisms excluding the door lock mechanism connected to the first domain controller to unlock the door based on the received collision signal; or, The second domain controller is connected to each door lock mechanism and is used to drive each door lock mechanism to unlock the door based on the received collision signal.

7. The vehicle collision unlocking system according to claim 4, characterized in that, The plurality of domain controllers also includes a third domain controller; The third domain controller and the first domain controller are connected via at least two third lines respectively; The first domain controller sends the received collision signal to the third domain controller through each of the third lines, and / or the first domain controller sends the collision unlock command to the third domain controller through each of the third lines; the collision signal and the collision unlock command can be sent through different third lines, and the communication methods transmitted by each third line are different.

8. The collision unlocking system according to claim 7, characterized in that, The first domain controller includes a collision unlocking logic module, and the third domain controller includes a second door lock invocation module and a second collision unlocking module; The collision unlocking logic module generates the collision unlocking command based on the received collision signal, and sends the collision unlocking command to the second door lock calling module through the third line; Based on the received collision unlock command, the second door lock invocation module invokes the second collision unlock module to drive the door lock mechanism connected to the third domain controller to perform door unlocking.

9. The collision unlocking system according to claim 7, characterized in that, The third domain controller includes a second collision unlocking module. After receiving the collision signal, the third domain controller drives the door lock mechanism connected to the third domain controller to unlock the door through the second collision unlocking module.

10. The vehicle collision unlocking system according to claim 7, characterized in that, The third domain controller and the second domain controller are connected via a fourth line, and the second domain controller and the third domain controller transmit the collision signal via the fourth line.

11. The vehicle collision unlocking system according to claim 10, characterized in that, The first domain controller is connected to at least two of the plurality of door lock mechanisms, or the second domain controller is connected to at least two of the plurality of door lock mechanisms, or the third domain controller is connected to at least two of the plurality of door lock mechanisms.

12. The vehicle collision unlocking system according to claim 3, characterized in that, Also includes: Emergency call controller; The emergency call controller is connected to the collision detection unit; the emergency call controller is used to output emergency rescue information based on the collision signal after receiving the collision signal sent by the collision detection unit.

13. The vehicle collision unlocking system according to claim 12, characterized in that, The first domain controller and the emergency call controller are connected via at least two fifth lines respectively; The first domain controller sends the received collision signal to the emergency call controller through each of the fifth lines, and the communication methods of each fifth line are different.

14. The vehicle collision unlocking system according to claim 1, characterized in that, Any one of the plurality of domain controllers includes an emergency call unit; the emergency call unit is used to output emergency rescue information based on the collision signal after any one of the plurality of domain controllers receives the collision signal.

15. A vehicle collision unlocking method, applied to the vehicle collision unlocking system according to any one of claims 1 to 14, characterized in that, include: After receiving a collision signal, the collision detection unit sends the collision signal to the domain controller connected to the collision detection unit through at least two lines; the communication methods corresponding to the at least two lines are different, and the domain controller is any one of a plurality of domain controllers; the plurality of domain controllers includes at least a first domain controller and a second domain controller; the first domain controller includes a collision unlocking logic module, and the second domain controller includes a first door lock calling module and a first collision unlocking module; The domain controller drives the door lock mechanism connected to it to unlock the door based on the received collision signal; The collision unlocking logic module generates a collision unlocking command based on the received collision signal, and sends the collision unlocking command to the first door lock calling module through the second line; the second line is the communication line between the first domain controller and the second domain controller; Based on the received collision unlock command, the first door lock invocation module invokes the first collision unlock module to drive the door lock mechanism connected to the second domain controller to perform door unlocking.

16. A vehicle, characterized in that, The vehicle collision unlocking system includes any one of claims 1 to 14.

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