KR102555907B1 - A vehicle and method for controlling communication thereof - Google Patents

Abstract

It relates to a vehicle that can efficiently communicate even with communication delays and failures due to communication channel occupation by using a service oriented architecture method and a communication control method thereof, which provides a first controller for providing a service and a device that consumes the service. a plurality of controllers including a second controller; And, a communication channel switch that is communicatively connected to the plurality of controllers and switches a communication channel for service transmission between the first and second controllers, wherein the second controller transmits a predetermined target service to the first controller. If the target service request to the first controller fails, the target service is requested to the other second controllers except for the first controller, and when target service information is received from the other second controllers, the latest service information is obtained from the received target service information. can be extracted and used.

Description

Vehicle and its communication control method {A VEHICLE AND METHOD FOR CONTROLLING COMMUNICATION THEREOF}

The present invention relates to a vehicle, and more particularly, to a vehicle and a communication control method thereof capable of efficiently communicating even in the event of communication delay and failure due to communication channel occupation using a service oriented architecture (Service Oriented Architecture) method.

In general, Ethernet is being actively developed and applied as an internal communication network infrastructure of a vehicle.

In the case of Ethernet, it can be implemented in a pin to pin method, but all signals are not broadcasted like the conventional CAN method.

In addition, the configuration of controllers inside the vehicle is layered, and it is expected that major functions will be concentrated in the central controller in the future.

Therefore, since many controllers are expected to make information requests to the central controller, the channel occupancy of the Ethernet connected to the central controller will be high.

Accordingly, there is a problem in that each controller cannot receive desired information from a specific controller when a communication delay occurs in the central controller for information requested by the central controller.

Therefore, there is a need to develop a vehicle capable of efficient communication even when communication delays and failures occur due to an increase in occupancy of an Ethernet channel connected from a central controller in the future.

According to the present invention, when a request for a target service is delayed or failed in a controller providing the target service, the target service is received from other consuming controllers using a service oriented architecture method, thereby efficiently performing communication. It is intended to provide a vehicle and a communication control method thereof.

In addition, the present invention intends to provide a vehicle capable of using the latest service information and a communication control method thereof by extracting the latest service information from target service information or re-requesting the latest service information using a service-oriented architecture method.

In addition, the present invention is intended to provide a vehicle and a communication control method thereof capable of efficiently communicating by lowering the channel occupancy rate by not transmitting the latest issued service information to the service consumption controller when there is no change.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

In order to solve the above technical problem, a vehicle according to an embodiment of the present invention includes a plurality of controllers including a first controller providing a service and a second controller consuming the service; And, a communication channel switch that is communicatively connected to the plurality of controllers and switches a communication channel for service transmission between the first and second controllers, wherein the second controller transmits a predetermined target service to the first controller. If the target service request to the first controller fails, the target service is requested to the other second controllers except for the first controller, and when target service information is received from the other second controllers, the latest service information is obtained from the received target service information. can be extracted and used.

In addition, in a vehicle communication control method according to an embodiment of the present invention, in a vehicle including a first controller providing a service and a plurality of second controllers consuming the service, the second controller provides a predetermined target service. The step of making a request to the first controller, the second controller checking whether the target service request to the first controller fails, and the second controller checking if the target service request to the first controller fails, the other controllers except for itself. Step 2 of requesting a target service to a controller, step of a second controller receiving target service information from the other second controllers, and receiving target service information from the other second controllers if the second controller receives the target service information The step of extracting the latest service information from the information, the step of confirming whether the latest service information extracted by the second controller is newer than the previously stored same service information, and the step of confirming that the latest service information extracted by the second controller is the same service information previously stored. If it is more up-to-date information, a step of using the extracted latest service information may be included.

In addition, in a vehicle communication control method according to an embodiment of the present invention, in a vehicle including a first controller providing a service and a plurality of second controllers consuming the service, the first controller requests a service from the second controller. The first controller checks whether the service request received from the second controller is a delay response service request, and if the first controller checks whether the delay response service request has been changed, the first controller checks whether the last issued service information has been changed. Checking whether the same service request has been received at least twice or more from the same controller if the last issued service information is not changed as a result of the check by the first controller; and not transmitting the last issued service information to the second controller if the same service request is not received more than once.

A vehicle and a communication control method thereof according to at least one embodiment of the present invention configured as described above, when a target service request is delayed or failed in a controller providing a target service, a service oriented architecture (Service Oriented Architecture) method. By using the target service from other consumer consumption controllers, an effect of efficiently performing communication is provided.

In addition, the present invention provides an effect of using the latest service information by extracting the latest service information from target service information or re-requesting the latest service information using a service-oriented architecture method.

In addition, the present invention provides an effect of efficiently performing communication by lowering the channel occupancy by not transmitting the latest issued service information to the service consumption controller when it is not changed.

Accordingly, according to the present invention, when a communication delay or failure occurs due to an increase in occupancy of a specific channel in a vehicle to which a service-oriented architecture is applied, the latest service information can be received using another channel.

And, according to the present invention, efficient communication can be performed without increasing additional Ethernet channels in the central controller.

The effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. will be.

1 and 2 are block diagrams for explaining a vehicle communication control system according to an embodiment of the present invention.
3 and 4 are flowcharts illustrating a method for controlling communication of a vehicle according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as “… unit”, “… unit”, and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. there is.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated. In addition, parts denoted with the same reference numerals throughout the specification mean the same components.

Hereinafter, a vehicle and a controller load optimization method applicable to embodiments of the present invention will be described in detail with reference to FIGS. 1 to 4 .

1 and 2 are block diagrams for explaining a vehicle communication control system according to an embodiment of the present invention.

A vehicle according to the present invention includes a communication technology such as SOME/IP (Service Oriented Middleware over IP), a software platform (SWP) supporting SOA, and a controller to which it is applied to configure a service-oriented architecture-based vehicle. need.

Also, in the present invention, new service information can be installed using communication outside the vehicle, and a communication unit can be installed in the central controller to prevent direct connection to the controller inside the vehicle.

In addition, the vehicle of the present invention can perform communication between controllers using a service-oriented architecture. The controller in the vehicle publishes its own service contents and provides necessary services through search. , and can be used by binding with the corresponding service provider.

Here, a controller providing a service among controllers in the vehicle has information about a controller consuming the service.

Therefore, as shown in FIG. 1, the vehicle of the present invention may include a central controller 100 and a plurality of peripheral controllers 200, the central controller 100 and a plurality of controllers 200, Ethernet Communication can be performed by being connected to a communication channel switch 300 such as a switch.

And, the central controller 100 may include the SOA support unit 102 to perform communication using the service-oriented architecture method, and the peripheral controller 200 also performs communication using the service-oriented architecture method. The SOA support unit 202 may be included to enable this.

As such, the vehicle includes a plurality of controllers based on a service-oriented architecture, and the plurality of controllers may perform communication by being connected to a communication channel switch such as an Ethernet switch.

Here, among a plurality of controllers, when a service request is delayed or fails due to the occupation of a communication channel in a controller providing a service, the controller consuming the service makes a service request to another controller to receive the requested service. Delay response logic is required.

As shown in FIG. 2 , the vehicle of the present invention includes a plurality of controllers including a first controller 210 that provides services and second controllers 220, 230, and 240 that consume services, and a plurality of controllers. It may include a communication channel switch 300 that is communicatively connected to the controllers and switches a communication channel for service transmission between the first and second controllers 210, 220, 230, and 240.

Here, the first controller 210, as a service provider, may include a service registry providing unit 212 and a delay response logic unit 214.

For example, the service registry provider 212 of the first controller 210 shares corresponding service information with the other controllers 230 and 240 by allowing the second controller 220 to perform service disclosure, search, and connection operations. If so, a service registry may be transmitted to the second controller 220 .

And, when the service request received from the second controller 220 is a delay response service request, the delay response logic unit 214 of the first controller 210, if the last issued service information is not changed, the last issued service information. Service information may not be transmitted.

The reason for this is that, if the latest issued service information is not changed, it is not transmitted to the service consumption controller, thereby lowering the channel occupancy rate and enabling efficient communication.

Also, the second controller 220, as a service consumer, may include a delay response logic unit 224.

Here, the delay response logic unit 224 of the second controller 220 receives target service information from the other second controllers 230 and 240 when the target service request from the first controller 210 is delayed or fails. The latest service information can be extracted.

As such, the second controller 220 may use the latest service information by extracting the latest service information from the target service information or by re-requesting the latest service information.

Next, the other second controllers 230 and 240, as service consumers, may include delay response logic units 234 and 244.

Here, when the delay response logic units 234 and 244 of the other second controllers 230 and 240 receive a target service request from the specific second controller 220, the requested target service is extracted and the specific second controller 220 ) can be transmitted.

Also, the communication channel switch 300 may be an Ethernet switch, but is not limited thereto.

As shown in FIG. 2, the second controller 220 requests a predetermined target service to the first controller 210, and if the request for the target service to the first controller 210 fails, the other second controllers except for itself ( When a target service is requested to 230 and 240 and target service information is received from the remaining second controllers 230 and 240, latest service information can be extracted from the received target service information and used.

Here, the second controller 220 may share corresponding service information with other controllers by performing service disclosure, search, and connection operations before requesting a predetermined target service to the first controller 210 .

Also, before requesting a predetermined target service to the first controller 210, the second controller 220 receives a service registry from the first controller 210, and among the received service registries, the target service Service information can be stored.

Then, when the second controller 220 requests the target service from the other second controllers 230 and 240, it searches for the other second controllers 230 and 240 other than itself and the other second controllers 220. A previous reception result of the target service may be requested from (230, 240).

Next, when requesting a target service from the other second controllers 230 and 240, the second controller 220 transmits information indicating that the target service is requested to the other second controllers 230 and 240 to the first controller. (210).

Next, when extracting the latest service information from the received target service information, the second controller 220 may analyze the issue number of each service from the target service information and extract the latest service information based on the issue number analysis result. there is.

Further, when extracting the latest service information from the received target service information, the second controller 220 checks whether the extracted latest service information is more recent than the previously stored same service information, and the extracted latest service information is stored in advance. If the information is newer than the same service information, the extracted latest service information can be used.

Here, when the second controller 220 checks whether the extracted latest service information is newer than the previously stored same service information, if the extracted latest service information is not newer than the previously stored same service information, the first controller 210 ) to request the target service again.

In this case, the second controller 220 may control the display unit to display an error message due to communication delay when re-requesting the target service to the first controller 210 .

On the other hand, the first controller 210, when the second controller 220 performs service disclosure, search, and connection operations to share corresponding service information with other controllers, sends the second controller 220 a service registry (service registry). ) can be transmitted.

Here, the first controller 210 may add a service issue number to a payload of service information to be provided.

The reason is to distinguish whether the current service is the latest service.

Further, when the first controller 210 receives information indicating that a target service is requested from the second controller 220 to the other second controllers 230 and 240, the target service information to provide the received information. can be added within.

The reason is to distinguish whether the current service is a delay response service.

Next, the first controller 210 checks whether the service request received from the second controller 220 is a delay response service request, and if it is a delay response service request, checks whether the last issued service information has been changed, As a result of checking, if the last issued service information is not changed, the last issued service information may not be transmitted to the second controller 220 .

Also, before checking whether the service request received from the second controller 220 is a service request for delay, the first controller 210 performs service disclosure, search, and connection operations to transfer corresponding service information to other controllers. can be shared with

Here, the first controller 210 transmits a service registry to the second controller 220 before checking whether the service request received from the second controller 220 is a delay response service request, Among the transmitted service registries, delay response service information may be searched and stored.

Subsequently, when the first controller 210 checks whether the service request received from the second controller 220 is a delay response service request, if the check result is not a delay response service request, the finally issued service information is sent to the second controller 220. ) can be transmitted.

Further, when checking whether the last issued service information has been changed, the first controller 210 may transmit the last issued service information to the second controller 220 if the last issued service information is changed as a result of the check.

Next, when checking whether the last issued service information has been changed, the first controller 210 checks whether the same service request has been received at least twice or more from the same controller if the last issued service information has not changed as a result of the check, As a result of the check, if the same service request is not received at least twice from the same controller, the last issued service information may not be transmitted to the second controller 220 .

This is because, when the latest issued service information is not changed, it is not transmitted to the service consumption controller, thereby lowering the channel occupancy rate and enabling efficient communication.

Here, when the first controller 210 checks whether the same service request has been received at least twice or more from the same controller, if the same service request has been received at least twice or more from the same controller as a result of the check, the finally issued service information is transmitted to the second controller 210. (220).

Meanwhile, the other second controllers 230 and 240, upon receiving a target service request from the specific second controller 220, check whether the received target service request is a service request of a controller consuming the service, and determine the target service request. The target service having the same identification information may be transmitted to the specific second controller 220 by checking the identification information of .

Here, when the other second controllers 230 and 240 transmit the target service to the specific second controller 220, the IP (Internet Protocol) address or MAC (Medium Access Control) address of the specific second controller 220 can be transmitted based on

As such, the present invention, when the target service request is delayed or failed in the controller providing the target service, efficiently receives the target service from other consuming controllers using a service oriented architecture (Service Oriented Architecture) method. communication can be performed.

In addition, the present invention may use the latest service information by extracting the latest service information from the target service information or re-requesting the latest service information using a service-oriented architecture method.

In addition, according to the present invention, when the latest issued service information is not changed, it is not transmitted to the service consumption controller, thereby reducing the channel occupancy rate to efficiently perform communication.

Accordingly, according to the present invention, when a communication delay or failure occurs due to an increase in occupancy of a specific channel in a vehicle to which a service-oriented architecture is applied, the latest service information can be received using another channel.

And, according to the present invention, efficient communication can be performed without increasing additional Ethernet channels in the central controller.

3 and 4 are flowcharts for explaining a communication control method of a vehicle according to an embodiment of the present invention, FIG. 3 is a flowchart for explaining a service delay response logic, and FIG. 4 illustrates an Ethernet channel occupancy reduction logic. It is a flow chart for

As shown in FIG. 3 , the vehicle of the present invention may include a first controller providing a service and a plurality of second controllers consuming the service. A communication control method for coping with service delay is as follows. can be done

First, the second controller may share corresponding service information with other controllers by performing service disclosure, search, and connection operations (S10).

And, the first controller may transmit a service registry to the second controller (S20).

Subsequently, the second controller may receive the service registry from the first controller.

Next, the second controller may store target service information in the received service registry (S30).

And, the second controller may request a predetermined target service to the first controller.

Subsequently, the second controller may check whether the target service request to the first controller fails (S40).

Next, as a result of checking, if the request for the target service to the first controller fails, the second controller may search other second controllers except for itself (S50).

Then, the second controller may request a past reception result of the target service from the other second controllers (S60).

Here, the second controller may transmit information indicating that the target service is requested to the other second controllers to the first controller.

Subsequently, the second controller may receive target service information from other second controllers (S70).

Next, when receiving target service information from other second controllers, the second controller can extract latest service information from the received target service information (S80).

And, the second controller can check whether the extracted latest service information is more recent information than the previously stored same service information (S90).

Then, as a result of checking, if the extracted latest service information is more recent than the same previously stored service information, the second controller may use the extracted latest service information (S100).

However, as a result of checking, if the extracted latest service information is not newer than the same service information stored in advance, the second controller requests the target service again to the first controller and controls the display unit to display an error message due to communication delay. It can (S110).

As such, the present invention, when the target service request is delayed or failed in the controller providing the target service, efficiently receives the target service from other consuming controllers using a service oriented architecture (Service Oriented Architecture) method. communication can be performed.

In addition, the present invention may use the latest service information by extracting the latest service information from the target service information or re-requesting the latest service information using a service-oriented architecture method.

As shown in FIG. 4 , the vehicle of the present invention may include a first controller providing a service and a plurality of second controllers consuming the service. A communication control method for reducing Ethernet channel occupancy is as follows. can be done

First, the first controller may share corresponding service information with other controllers by performing service disclosure, search, and connection operations (S210).

And, the first controller may transmit a service registry to the second controller (S220).

Subsequently, the first controller searches for and stores delay response service information among the transmitted service registries (S230).

Next, the first controller may receive a service request from the second controller.

Then, the first controller may check whether the service request received from the second controller is a service request for delay (S240).

Then, as a result of the check, if it is a request for a delay response service, the first controller may check whether the last issued service information has been changed (S250).

However, the first controller may transmit the last issued service information to the second controller if it is not the delay response service request as a result of the check (S280).

Next, the first controller checks whether the same service request has been received at least twice or more from the same controller if the last issued service information is not changed as a result of the check (S260).

Then, as a result of checking, if the same service request is not received at least twice or more from the same controller, the first controller may not transmit the last issued service information to the second controller (S270).

However, if the first controller receives the same service request at least twice or more from the same controller as a result of checking, it may transmit the last issued service information to the second controller (S280).

As described above, according to the present invention, when the latest issued service information is not changed, it is not transmitted to the service consumption controller, thereby reducing the channel occupancy rate and efficiently performing communication.

The present invention relates to a vehicle capable of efficiently communicating despite communication delay and failure due to communication channel occupation by using a service oriented architecture method and a communication control method thereof, and may have the following embodiments. .

For example, the central controller transmits information such as map information and current location to a necessary controller through an Ethernet channel.

At this time, the specific controller requested sheet position information designated by the user.

However, the channel connected to the central controller is in a situation in which a delay may occur because the occupancy is increased by the request of each controller.

In this case, even after mass production, it may be difficult for OEMs to monitor or manage all communication channel occupancy because S/W updates can be performed in the same way as OTA or user apps can be installed by applying SOA.

At this time, the central controller does not transmit information on the last provided service because it is not changed.

When the controller requesting the service does not receive the service request from the central controller, it receives the latest service information from the controllers in the vehicle and processes it as the corresponding information.

Through this, the channel occupancy rate can be reduced by removing unnecessary transmission/reception requests.

As such, the present invention, when the target service request is delayed or failed in the controller providing the target service, efficiently receives the target service from other consuming controllers using a service oriented architecture (Service Oriented Architecture) method. communication can be performed.

In addition, the present invention may use the latest service information by extracting the latest service information from the target service information or re-requesting the latest service information using a service-oriented architecture method.

In addition, according to the present invention, when the latest issued service information is not changed, it is not transmitted to the service consumption controller, thereby reducing the channel occupancy rate to efficiently perform communication.

Accordingly, according to the present invention, when a communication delay or failure occurs due to an increase in occupancy of a specific channel in a vehicle to which a service-oriented architecture is applied, the latest service information can be received using another channel.

And, according to the present invention, efficient communication can be performed without increasing additional Ethernet channels in the central controller.

The above-described present invention can be implemented as computer readable code on a medium on which a program is recorded. The computer-readable medium includes all types of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include Hard Disk Drive (HDD), Solid State Disk (SSD), Silicon Disk Drive (SDD), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. , and also includes those implemented in the form of a carrier wave (eg, transmission over the Internet).

Accordingly, the above detailed description should not be construed as limiting in all respects and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

100: central controller
200: peripheral controller
210: first controller
220, 230, 240: second controller

Claims (20)

a plurality of controllers including a first controller providing a service and a second controller consuming the service; and,
A communication channel switch that is communicatively connected to the plurality of controllers and switches a communication channel for service transmission between the first and second controllers;
The second controller,
A predetermined target service is requested to the first controller, and if the request for the target service to the first controller fails, the target service is requested to other second controllers other than itself, and the target service is received from the other second controllers. When information is received, the vehicle characterized in that the latest service information is extracted from the received target service information and used. The method of claim 1, wherein the second controller,
The vehicle characterized in that, prior to requesting the predetermined target service to the first controller, service disclosure, search, and connection operations are performed to share corresponding service information with other controllers. The method of claim 1, wherein the second controller,
Before requesting the predetermined target service to the first controller, a service registry is received from the first controller, and target service information is stored in the received service registry. The method of claim 1, wherein the second controller,
When extracting the latest service information from the received target service information, it is checked whether the extracted latest service information is newer than the previously stored same service information, and the extracted latest service information is more up to date than the same previously stored service information. If it is, the vehicle characterized in that the extracted latest service information is used. The method of claim 4, wherein the second controller,
When checking whether the extracted latest service information is newer than the previously stored same service information, if the extracted latest service information is not newer than the previously stored same service information, the first controller requests the target service again. characterized vehicle. The method of claim 1, wherein the second controller,
and a delay response logic unit receiving the target service information from the remaining second controllers and extracting latest service information when the target service request from the first controller is delayed. The method of claim 1, wherein the first controller,
It is checked whether the service request received from the second controller is a delay response service request, and if it is the delay response service request, it is checked whether the last issued service information has been changed, and as a result of the check, the finally issued service information is not changed. otherwise, the finally issued service information is not transmitted to the second controller. The method of claim 7, wherein the first controller,
The vehicle characterized in that, before checking whether the service request received from the second controller is a service request for delay, service disclosure, search, and connection operations are performed to share corresponding service information with other controllers. The method of claim 7, wherein the first controller,
Before checking whether the service request received from the second controller is a delay response service request, a service registry is transmitted to the second controller, and delay response service information is searched and stored in the transmitted service registry. A vehicle characterized by doing. The method of claim 7, wherein the first controller,
When it is checked whether the service request received from the second controller is a service request for handling delay, if it is not the service request for handling delay, the finally issued service information is transmitted to the second controller. The method of claim 7, wherein the first controller,
When checking whether the last issued service information has been changed, if the last issued service information is changed as a result of checking, the last issued service information is transmitted to the second controller. The method of claim 7, wherein the first controller,
When checking whether the last issued service information has been changed, if the last issued service information has not been changed, it is checked whether the same service request has been received at least twice from the same controller, and as a result of the checking, at least two requests from the same controller have been received. and if the same service request is not received more than once, the last issued service information is not transmitted to the second controller. 13. The method of claim 12, wherein the first controller,
When it is checked whether the same service request is received at least twice or more from the same controller, if the same service request is received at least twice or more from the same controller as a result of checking, the finally issued service information is transmitted to the second controller. vehicle to do. The method of claim 1, wherein the first controller,
a service registry providing unit that transmits a service registry to the second controller when the second controller performs service disclosure, search, and connection operations to share corresponding service information with other controllers; and,
and a delay response logic unit configured to not transmit the last issued service information if the last issued service information is not changed when the service request received from the second controller is a delay response service request. The method of claim 1, wherein the other second controller,
and a delay response logic unit extracting the requested target service and transmitting the extracted target service to the specific second controller when the target service request is received from the specific second controller. The method of claim 1, wherein the communication channel switch,
A vehicle characterized in that it is an Ethernet switch. A communication control method for a vehicle comprising a first controller providing a service and a plurality of second controllers consuming the service,
requesting, by the second controller, a predetermined target service to the first controller;
checking, by the second controller, whether a target service request to the first controller is a failure;
requesting, by the second controller, the target service to other second controllers, if the request for the target service to the first controller fails;
receiving, by the second controller, target service information from the other second controllers;
extracting, by the second controller, latest service information from the received target service information when target service information is received from the other second controllers;
confirming, by the second controller, whether the extracted latest service information is newer than previously stored identical service information; and,
and using, by the second controller, the extracted latest service information if the extracted latest service information is newer than the previously stored same service information. 18. The method of claim 17, wherein the step of requesting the predetermined target service to the first controller comprises:
sharing, by the second controller, corresponding service information with other controllers by performing service disclosure, search, and connection operations;
receiving, by the second controller, a service registry from the first controller;
storing, by the second controller, target service information in the received service registry; and,
and requesting, by the second controller, the predetermined target service to the first controller. A communication control method for a vehicle comprising a first controller providing a service and a plurality of second controllers consuming the service,
receiving, by the first controller, a service request from the second controller;
checking, by the first controller, whether a service request received from the second controller is a service request for delay;
checking, by the first controller, whether the last issued service information has been changed if the delay response service is requested as a result of the check;
checking, by the first controller, whether the same service request has been received at least twice or more from the same controller if the last issued service information is not changed as a result of the check; and,
and not transmitting, by the first controller, the last issued service information to the second controller if the same service request has not been received at least twice or more from the same controller as a result of checking. method. The method of claim 19, wherein receiving a service request from the second controller comprises:
sharing, by the first controller, corresponding service information with other controllers by performing service disclosure, search, and connection operations;
transmitting, by the first controller, a service registry to the second controller;
searching for, and storing, by the first controller, delay response service information from the transmitted service registry; and,
The communication control method of a vehicle comprising the step of receiving, by the second controller, a service request from the second controller.

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