A method, device, system, equipment and vehicle for controlling the state of a partial network

Abstract

The present application provides a method, device, system, equipment and vehicle for controlling the state of a partial network, including: a slave node receives a network management message sent by a master node, the network management message is used to instruct the partial network to wake up; the slave node analyzes the network management message to obtain a response network segment corresponding to the network management message; the slave node sends the network management message to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation. In this way, the controller of the response network segment is controlled by the master node and the slave node, and a three-level cascade control method is adopted. The master node controls the slave node, and the slave node controls the controller of the response network segment. The state control of the partial network is carried out hierarchically, and the functions of the transceiver are integrated into the master node and the slave node, so that the state control of the partial network can be achieved without modifying the transceiver. The cost is low and it is convenient for the mass production of platform-based models.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle control, and in particular to a method, device, system, equipment and vehicle for controlling the state of a partial network. Background Art

[0002] ECU sleep refers to an ECU being powered off or in a low-power mode with very few peripherals active; ECU wakeup refers to an ECU being in full operation. To support sleep and wakeup, the electronic control unit (ECU) chip must support switching between low-power and normal operating modes. With the advancement of vehicle control technology, vehicles are required to control the state of some networks to cope with complex vehicle control functions.

[0003] Existing technologies require hardware modifications to achieve partial network status control. All AUTOSAR (Automotive Open System Architecture) network management ECUs must replace their CAN-PN (Partial Networking) transceivers. This change significantly impacts platform-based vehicles, resulting in significant hardware development costs and the cost of switching between existing production vehicles on the same platform.

[0004] Therefore, how to reduce the cost of partial network dormancy is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0005] In view of this, embodiments of the present application provide a method, apparatus, system, device, and vehicle for controlling the state of a portion of a network, aiming to reduce the cost of dormancy of a portion of the network.

[0006] In a first aspect, an embodiment of the present application provides a state control method for a portion of a network, applied to a slave node, comprising:

[0007] The slave node receives a network management message sent by the master node, the master node and the slave node are both electronic control units, and the network management message is used to instruct a partial network wake-up;

[0008] The slave node analyzes the network management message to obtain a response network segment corresponding to the network management message;

[0009] The slave node sends the network management message to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation.

[0010] Optionally, the method further includes:

[0011] Within a preset time after the master node sends the network management message, the slave node receives the network management message transmission request periodically sent by the master node.

[0012] Optionally, the method further includes:

[0013] In response to the network sleep timer reaching a first preset threshold, the slave node performs a sleep operation.

[0014] Optionally, the slave node analyzing the network management message to obtain a response network segment corresponding to the network management message includes:

[0015] The slave node analyzes the PNI bit and related function group settings of the network management message to obtain a response network segment corresponding to the network management message.

[0016] Optionally, the slave node sending the network management message to the response network segment includes:

[0017] The slave node responds to the PNI bit of the network management message, sets the relevant function group, and sends the network management message to the response network segment;

[0018] The method further comprises:

[0019] In response to the PNI bit of the network management message not being set, the slave node sets the relevant function group and does not send the network management message to the response network segment.

[0020] In a second aspect, an embodiment of the present application provides a state control device for a portion of a network, including:

[0021] A receiving module, configured to receive a network management message from a slave node, the master node and the slave node being both electronic control units, the network management message being used to instruct a partial network wake-up;

[0022] An analysis module, configured for the slave node to analyze the network management message and obtain a response network segment corresponding to the network management message;

[0023] The first sending module is used for the slave node to send the network management message to the response network segment, so that the controller corresponding to the response network segment performs a wake-up operation.

[0024] Optionally, the device further includes:

[0025] The sleep module is configured to cause the slave node to perform a sleep operation in response to a network sleep timer reaching a first preset threshold.

[0026] In a third aspect, an embodiment of the present application provides a state control system for a portion of a network, including:

[0027] Master and slave nodes;

[0028] The master node is configured to send a network management message to a slave node; in response to a sleep condition within the master node being met, the master node stops sending the network management message; the master node and the slave node are both electronic control units, and the network management message is used to instruct a partial network wake-up;

[0029] The slave node is used to receive a network management message sent by the master node; analyze the PNI bit and the related function group settings in the network management message to obtain a response network segment corresponding to the network management message; send the network management message to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation; the master node and the slave node are both electronic control units, and the network management message is used to indicate partial network wake-up.

[0030] In a fourth aspect, an embodiment of the present application provides a state control device for a partial network, the device comprising a memory and a processor, the memory being used to store instructions or codes, the processor being used to execute the instructions or codes so that the device executes the state control method for a partial network as described in any one of the first aspects above.

[0031] In a fifth aspect, an embodiment of the present application provides a vehicle, comprising a partial network state control device, wherein the partial network state control device is used to execute the partial network state control method described in any one of the aforementioned first aspects.

[0032] The embodiment of the present application provides a method, device, system, equipment and vehicle for controlling the state of a partial network. When executing the method, the slave node first receives a network management message sent by the master node. The master node and the slave node are both electronic control units. The network management message is used to instruct the partial network to wake up. The network management message is then analyzed to obtain a response network segment corresponding to the network management message. Finally, the network management message is sent to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation. In this way, the controller of the response network segment is controlled by the master node and the slave node, and a three-level cascade control method is adopted. The master node controls the slave node, and the slave node controls the controller of the response network segment. The state control of the partial network is performed in a hierarchical manner. The functions of the transceiver are integrated into the master node and the slave node, so that the state control of the partial network can be achieved without modifying the transceiver. The cost is low and it is convenient for mass production of platform-based vehicle models. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the following briefly introduces the drawings required for use in the embodiment or the prior art description. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A flow chart of a method for controlling the state of a portion of a network provided in an embodiment of the present application;

[0035] Figure 2 Another method flow chart of the state control method of a portion of the network provided in an embodiment of the present application;

[0036] Figure 3 A flowchart of another method for controlling the state of a portion of a network provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of a structure of a state control device for a portion of a network provided in an embodiment of the present application;

[0038] Figure 5 Another structural diagram of the state control device of a partial network provided in an embodiment of the present application;

[0039] Figure 6 A schematic diagram of a state control system of a portion of a network provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] Existing technology requires hardware modifications to achieve partial network status control. All AUTOSAR (Automotive Open System Architecture) network management ECUs must replace their CAN-PN (Partial Networking) transceivers. This change significantly impacts platform-based vehicles, resulting in significant hardware development costs and the cost of switching existing production vehicles from the same platform.

[0041] The method provided in the embodiment of the present application is executed by a computer device to reduce the cost of partial network dormancy.

[0042] Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] See also Figure 1 , Figure 1A method flow chart of a method for controlling the state of a portion of a network provided in an embodiment of the present application includes:

[0044] Step S101: The slave node receives a network management message sent by the master node.

[0045] Both the master node and the slave node are electronic control units, corresponding to the primary and secondary control terminals, respectively. The master node is the primary control node, responsible for identifying user scenarios and performing partial network sleep and wakeup operations. The slave node is the gateway electronic control unit, responsible for forwarding control commands from the master node to the corresponding network segment or routing wakeup requests from other network segments to the master node.

[0046] Step S102: Analyze the network management message from the node to obtain a response network segment corresponding to the network management message.

[0047] Network management messages can instruct slave nodes to perform subsequent operations, including whether to forward the message to the corresponding network segment and the content of the response segment. The slave node analyzes the network management message to obtain the corresponding response segment and then forwards the message content to the response segment so that the controller of the response segment can perform the corresponding operation. The slave node performs a routing function, routing the network management message to the response segment. The slave node combines the master node and the controller on the response segment to form a three-level cascade control system, which elevates the transceiver operation to the master and slave nodes, facilitating cost savings and mass production of vehicles.

[0048] Step S103: The slave node sends the network management message to the response network segment.

[0049] After the slave node obtains the response network segment, it can directly send the received network management message to the response network segment, allowing the controller corresponding to the response network segment to perform the wake-up operation. In this case, the controller corresponding to the response network segment is a three-level control terminal. Therefore, the master node, slave node, and controller together form a three-level cascade control. The transceiver work is performed by the master node and slave nodes, making it possible to achieve partial network status control without modifying the transceiver, which is beneficial for cost savings and mass production of vehicles.

[0050] It should be noted that the awakening at this time may be to awaken the controller in the sleep state, or to keep the controller in the awake state without performing the sleep operation.

[0051] To summarize, this embodiment controls the controller of the response network segment through the master node and the slave node, adopts a three-level cascade control method, the master node controls the slave node, and the slave node controls the controller of the response network segment, and performs the state control of part of the network in a hierarchical manner. The functions of the transceiver are integrated into the master node and the slave node, so as to achieve the purpose of realizing the state control of part of the network without modifying the transceiver. The cost is low and it is convenient for the mass production of platform-based models.

[0052] See also Figure 2 , which is another method flow chart of a state control method for a portion of a network provided in an embodiment of the present application, including:

[0053] Step S201: The slave node receives a network management message transmission request periodically sent by the master node.

[0054] After detecting the local trigger condition for function activation, the master node can quickly and periodically send a wake-up network management message and begin counting. The sent wake-up network management message includes the PNI bit set and the relevant function group bits set. Within a preset time after the master node sends the network management message, the slave node can receive the network management message sent by the master node. Specifically, the slave node must first receive the network management message transmission request periodically sent by the master node, and then receive the network management message transmitted by the master node.

[0055] Therefore, within a preset time after the master node sends the network management message, the slave node receives the network management message transmission request periodically sent by the master node.

[0056] Step S202: The slave node receives a network management message sent by the master node.

[0057] The above steps are the same as those in the above embodiment and will not be described in detail here.

[0058] Step S203: The slave node analyzes the PNI bit and related function group settings of the network management message to obtain a response network segment corresponding to the network management message.

[0059] As a possible implementation, the network management message includes a PNI bit and a related function group bit, which are used to indicate whether forwarding to a response network segment is required, and the content of the response network segment.

[0060] It should be noted that if the slave node responds to a network management message with the PNI bit unset and the relevant function group set, the slave node does not send the network management message to the corresponding network segment. If PNI = 0, this means there is no PN request in the network management message, and no further PN function processing is performed. If PNI = 1, this means there is a PN request in the network management message, and further PN function processing is required, namely, analyzing the relevant function group set.

[0061] The relevant function group setting can represent the subsequent operations that need to be performed. After analysis, it can be determined whether the network management message is related to the current slave node, and when it is related to the current slave node, to which network segment the current slave node needs to forward it, that is, the response network segment.

[0062] It should be noted that when the PNI bit in the network management message is irrelevant to the current slave node, and the relevant function group setting is irrelevant to the current slave node, the response network segment corresponding to the network management message is empty, that is, the slave node does not need to perform subsequent operations.

[0063] As a possible implementation method, the correspondence between some functional groups and response network segments is shown in the following table:

[0064]

[0065]

[0066] The left title indicates the functional group, the top title indicates the network segment, and the position selected by x is the corresponding network segment corresponding to the functional group on the left.

[0067] In addition to the cases in the table above, when the master node is CCU-CAN and the function group PNC is set, the response segment is only subCAN; when the master node is other CANs, the response segment is all CANs.

[0068] Step S204: The slave node sends the network management message to the response network segment.

[0069] The above steps are the same as those in the above embodiment and will not be described in detail here.

[0070] Step S205: In response to the network sleep timer reaching a first preset threshold, the slave node performs a sleep operation.

[0071] When the slave node begins receiving network management messages from the master node, the network management timer is reset. This continues until all network management messages are received and the network management timer reaches a second preset threshold. At this point, the network sleep timer is triggered, and the slave node enters sleep mode until the network sleep timer reaches a first preset threshold. The first and second preset thresholds can be set based on the computing power of the master node or the slave node and are not limited herein.

[0072] For ease of understanding, the following example of T-box remote control and scheduled charging solutions is used to explain this embodiment. The master node ECU is a T-box. When the T-box remote control function (including: remote unlocking, remote sunroof control, remote car search, remote tailgate control, remote rear defrost control, etc.) is activated, a network management message with the PNI position bit and the function group Comfort_Awake position bit is sent to the SC_CAN network. The slave nodes on the SC_CAN network can receive the above network management messages, and then the CCU (routing function) in the slave node recognizes the network management messages with the PNI bit and the function group position bit, and sends the network management messages with the same position bit to the response network segments VIU_L_CAN, VIU_F_CAN, and VIU_R_CAN so that the controllers of the above network segments can perform corresponding operations. Among them, VIU_L_CAN, VIU_F_CAN, and VIU_R_CAN are the three response network segments obtained by the slave node analyzing the network management message, and each response network segment has a corresponding controller.

[0073] To sum up, the slave node in this embodiment obtains subsequent forwarding instructions by analyzing the specific settings of the network management message, and elaborates on the three-level cascade control results of this application in detail, so as to achieve the purpose of partial network status control without modifying the transceiver, with low cost and convenient for mass production of platform-based vehicle models; at the same time, the slave node can automatically sleep, which helps to reduce excessive energy consumption.

[0074] See also Figure 3 , which is another method flow chart of the state control method of a partial network provided in an embodiment of the present application, including:

[0075] Step S301: The master node sends a network management message to the slave node.

[0076] Both the master and slave nodes are electronic control units, and the network management message is used to indicate partial network wakeup. Upon detecting a local trigger condition for function activation, the master node can periodically send wakeup network management messages at a rapid rate and begin counting. The sent wakeup network management message includes the PNI bit and related function group bits set, indicating whether the slave node should forward the message to the response network segment and the content of the response segment. It should be noted that the network management message sent by the master node must be received within a preset time, otherwise the control will fail.

[0077] Step S302: In response to the sleep condition inside the master node being met, the master node stops sending the network management message.

[0078] When the dormancy condition inside the master node is satisfied, that is, the master node is no longer in an active state, the master node stops sending the network management message.

[0079] As one possible implementation, when a slave node begins receiving network management messages from the master node, the network management timer is reset. This reset continues until all network management messages are received and the network management timer reaches a second preset threshold. At this point, the network sleep timer is triggered, and the master node enters sleep mode until the network sleep timer reaches a first preset threshold. The first and second preset thresholds can be set based on the computing power of the master node or slave node and are not limited herein.

[0080] In summary, this embodiment explains the stopping and sleeping modes of the master node. The master node automatically stops sending network management messages and sleeps through a built-in timing device, thereby fully reducing the power consumption of the master node and achieving the purpose of energy saving.

[0081] The above are some specific implementations of the state control method of a partial network provided in the embodiment of the present application. Based on this, the present application also provides a corresponding device. The device provided in the embodiment of the present application will be introduced from the perspective of functional modularization.

[0082] See also Figure 4 The structure diagram of a state control device for a partial network is shown. The device 400 includes a receiving module 401, an analyzing module 402 and a first sending module 403.

[0083] A receiving module 401 is configured to receive a network management message from a slave node, the master node and the slave node being both electronic control units, the network management message being used to instruct a partial network wake-up;

[0084] An analysis module 402 is configured to analyze the network management message from the slave node to obtain a response network segment corresponding to the network management message;

[0085] The first sending module 403 is configured to send the network management message from the slave node to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation.

[0086] As a possible implementation manner, the device further includes:

[0087] The request receiving unit is configured to receive, by the slave node, a network management message transmission request periodically sent by the master node within a preset time after the master node sends the network management message.

[0088] As a possible implementation manner, the device further includes:

[0089] The first sleep module is configured to cause the slave node to perform a sleep operation in response to a network sleep timer reaching a first preset threshold.

[0090] As a possible implementation, the analysis module 402 includes:

[0091] A setting analysis unit is used for the slave node to analyze the PNI bit and the related function group setting of the network management message to obtain a response network segment corresponding to the network management message.

[0092] As a possible implementation manner, the first sending module 403 includes:

[0093] A sending unit, configured for the slave node to send the network management message to the response network segment in response to the PNI bit of the network management message being set and the relevant function group being set;

[0094] The device further comprises:

[0095] The sending stop unit is used for the slave node to respond to the PNI bit of the network management message not being set, the relevant function group being set, and not sending the network management message to the response network segment.

[0096] See also Figure 5 The structure diagram of another partial network status control device is shown, and the device 500 includes a second sending module 501 and a stop sending module 502.

[0097] A second sending module 501 is configured for the master node to send a network management message to a slave node, where both the master node and the slave node are electronic control units, and the network management message is configured to instruct a partial network wake-up;

[0098] The sending stop module 502 is configured to stop the master node from sending the network management message in response to the sleep condition inside the master node being met.

[0099] As a possible implementation manner, the device further includes:

[0100] The second sleep module is configured to cause the master node to perform a sleep operation in response to the network sleep timer reaching a first preset threshold.

[0101] The embodiments of the present application also provide a corresponding system for implementing the solutions provided in the embodiments of the present application.

[0102] See also Figure 6 , Figure 6 This is a schematic diagram of the state control system of a portion of the network, including:

[0103] Master node 601 and slave node 602;

[0104] The master node is configured to send a network management message to a slave node; in response to a sleep condition within the master node being met, the master node stops sending the network management message; the master node and the slave node are both electronic control units, and the network management message is used to instruct a partial network wake-up;

[0105] The slave node is used to receive a network management message sent by the master node; analyze the network management message to obtain a response network segment corresponding to the network management message; send the network management message to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation; the master node and the slave node are both electronic control units, and the network management message is used to instruct partial network wake-up.

[0106] The embodiments of the present application also provide a corresponding partial network state control device and a computer storage medium for implementing the solution provided by the embodiments of the present application.

[0107] Among them, the state control device of the partial network includes a memory and a processor, the memory is used to store instructions or codes, and the processor is used to execute the instructions or codes so that the device executes the state control method of the partial network described in any embodiment of the present application.

[0108] The computer storage medium stores code. When the code is executed, the device executing the code implements the state control method of a portion of the network described in any embodiment of the present application.

[0109] The embodiments of the present application also provide a corresponding vehicle for implementing the solution provided in the embodiments of the present application.

[0110] The vehicle includes a partial network state control device, and the partial network state control device is used to execute the partial network state control method described in any embodiment of the present application.

[0111] The above description and accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. Moreover, the terms used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and / or" as used in this application means any and all possible combinations of one or more of the associated listings. In addition, when used in this application, the term "comprise" and its variant "comprises" shall include any and all possible combinations of one or more of the associated listings. In addition, when used in this application, the term "comprises" and its variant "comprises" shall include any and all possible combinations of one or more of the associated listings.

[0112] (comprises) and / or comprising (comprising) refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be referred to the description of the method part.

[0113] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0114] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical functional division. 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 or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, and can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0115] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling the state of a partial network, characterized in that: Applied to a slave node, the method includes: The slave node receives a network management message sent by the master node, the master node and the slave node are both electronic control units, and the network management message is used to instruct a partial network wake-up; The slave node analyzes the network management message to obtain a response network segment corresponding to the network management message; specifically: the slave node analyzes the PNI bit and the related function group setting of the network management message to obtain the response network segment corresponding to the network management message; if the PNI bit of the network management message is irrelevant to the slave node, and the related function group setting is irrelevant to the slave node, then the response network segment corresponding to the network management message is empty; The slave node sends the network management message to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation; specifically: the slave node sends the network management message to the response network segment in response to the PNI bit of the network management message being set and the relevant function group being set; and the slave node does not send the network management message to the response network segment in response to the PNI bit of the network management message being not set and the relevant function group being set.

2. The method according to claim 1, characterized in that The method further comprises: Within a preset time after the master node sends the network management message, the slave node receives the network management message transmission request periodically sent by the master node.

3. The method according to claim 1, characterized in that The method further comprises: In response to the network sleep timer reaching a first preset threshold, the slave node performs a sleep operation.

4. A state control device for a partial network, characterized in that: The device comprises: A receiving module, configured to receive a network management message from a slave node, the master node and the slave node being both electronic control units, the network management message being used to instruct a partial network wake-up; an analysis module, configured for the slave node to analyze the network management message and obtain a response network segment corresponding to the network management message; specifically, the slave node analyzes a PNI bit and a related function group setting of the network management message to obtain a response network segment corresponding to the network management message; if the PNI bit of the network management message is irrelevant to the slave node, and the related function group setting is irrelevant to the slave node, the response network segment corresponding to the network management message is empty; The first sending module is used for the slave node to send the network management message to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation; specifically: the slave node responds to the PNI bit of the network management message, the relevant function group is set, and sends the network management message to the response network segment; and the slave node responds to the PNI bit of the network management message not being set, the relevant function group is set, and does not send the network management message to the response network segment.

5. The device according to claim 4, characterized in that The device further comprises: The sleep module is configured to cause the slave node to perform a sleep operation in response to a network sleep timer reaching a first preset threshold.

6. A state control system for a portion of a network, characterized in that: The system comprises: Master and slave nodes; The master node is used to send network management messages to the slave nodes; The slave node is configured to receive a network management message sent by a master node; analyze the network management message to obtain a response network segment corresponding to the network management message, specifically: the slave node analyzes the PNI bit and the related function group setting of the network management message to obtain a response network segment corresponding to the network management message; if the PNI bit of the network management message is irrelevant to the slave node, and the related function group setting is irrelevant to the slave node, the response network segment corresponding to the network management message is empty; send the network management message to the response network segment so that the controller corresponding to the response network segment performs a wake-up operation, specifically: the slave node sends the network management message to the response network segment in response to the PNI bit of the network management message being set and the related function group being set; and the slave node does not send the network management message to the response network segment in response to the PNI bit of the network management message being not set and the related function group being set; the master node and the slave node are both electronic control units, and the network management message is used to indicate partial network wake-up.

7. A state control device for a partial network, characterized in that The device includes a memory and a processor, the memory is used to store instructions or codes, and the processor is used to execute the instructions or codes, so that the device executes the state control method of a partial network according to any one of claims 1 to 3.

8. A vehicle, characterized in that: The vehicle includes a partial network state control device, and the partial network state control device is used to execute the partial network state control method according to any one of claims 1 to 3.

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