KR101899966B1 - Method for monitoring device of network on vehicle - Google Patents

Abstract

According to another aspect of the present invention, there is provided a method of monitoring a network controller of a vehicle, the method comprising: requesting a diagnostic information from a diagnostic control unit when power is first applied to a network; The diagnostic control unit receiving the vehicle information and determining whether the vehicle information is the same or not; Determining whether the diagnostic information is identical to the vehicle information, and determining whether a predetermined monitoring condition for the network is satisfied if the information is the same; Constructing a predicted network by grasping information of controllers constituting the network according to presence or absence of a predicted network if the diagnostic control unit satisfies the monitoring condition; And a step of monitoring the controllers and outputting a monitoring result in comparison with a predicted network, wherein the diagnosis control unit determines whether the vehicle information is the same and initializes the expected network if the same is not the same; Updating a predicted network by adding a new controller to a predicted network or deleting a controller that has failed in a predicted network according to a monitoring result of controllers according to a predicted network; And converting the data of the network using different protocols through the gateway function to the diagnostic control unit, wherein the step of determining the information of the controllers comprises the steps of: if the network is a low speed CAN network, And the information of the controllers is obtained by using the network management messages transmitted and received between the nodes.

Description

METHOD FOR MONITORING DEVICE OF NETWORK ON VEHICLE "

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network controller monitoring method for a vehicle, and more particularly, to a network controller monitoring method for managing a controller constituting a network of a vehicle based on vehicle information, And a controller monitoring method.

Generally, as the proportion of electronic technology in automobiles increases, automobile network technology that connects electronic devices of automobiles is becoming more and more important. Vehicle basic equipment and convenience devices such as air conditioners, wipers, brakes, power seats, power windows, automatic transmissions, airbags, lights, and the like of vehicles are electronically controlled.

The network of the vehicle connects the electronic devices performing various functions within the vehicle, and controls the electronic device controllers (ECUs) using control area network (CAN) communication information so as to exchange control signals or control data for controlling the respective functions. As shown in FIG.

Conventionally, information on the electronic device controllers changed according to the vehicle option is classified by using the product number of the product, and software is separately developed and managed for each product number.

However, as electronic devices of vehicles have been increased and software versions of electronic devices have been variously developed, it is inefficient to manage electronic device controllers or software by product numbers as in the prior art, and it is difficult to quickly identify errors of various electronic device controllers .

Related prior arts are Korean Patent Laid-Open Publication No. 2014-0060752 (Apr. 21, 2014) entitled " gateway error handling device and method in vehicle network ".

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a vehicle control system, And to provide a method for monitoring a network controller of a vehicle.

An apparatus for monitoring a network controller of a vehicle according to an aspect of the present invention includes: a power supply device for applying power; A storage unit for storing a predicted network configured based on vehicle information for monitoring a controller constituting a network of the vehicle; When the power is first supplied from the power supply unit, the vehicle information is inputted and the expected network is initialized according to the vehicle information. Then, the information of the controllers configuring the network is determined according to the preset monitoring conditions for network monitoring A diagnosis controller configured to construct a predicted network and output monitoring results of controllers according to a predicted network; And an output unit for outputting a monitoring result from the diagnosis control unit. The diagnosis control unit may add a new controller to the expected network according to the monitoring result of the controllers according to the predicted network, or delete the controller having an error from the expected network, And converts and mediates data of a network using different protocols through a gateway function. When the network is a low-speed CAN network, the diagnosis control unit controls the controller, using the network management message transmitted and received between the controllers, And the like.

According to another aspect of the present invention, there is provided a method of monitoring a network controller of a vehicle, the method comprising: requesting information of a vehicle by a diagnostic control unit when power is first applied to a network; The diagnostic control unit receiving the vehicle information and determining whether the vehicle information is the same or not; Determining whether the diagnostic information is identical to the vehicle information, and determining whether a predetermined monitoring condition for the network is satisfied if the information is the same; Constructing a predicted network by grasping information of controllers constituting the network according to presence or absence of a predicted network if the diagnostic control unit satisfies the monitoring condition; And a step of monitoring the controllers and outputting a monitoring result in comparison with a predicted network, wherein the diagnosis control unit determines whether the vehicle information is the same and initializes the expected network if the same is not the same; Updating a predicted network by adding a new controller to a predicted network or deleting a controller that has failed in a predicted network according to a monitoring result of controllers according to a predicted network; And converting the data of the network using different protocols through the gateway function to the diagnostic control unit, wherein the step of determining the information of the controllers comprises the steps of: if the network is a low speed CAN network, And the information of the controllers is obtained by using the network management messages transmitted and received between the nodes.

A network controller monitoring method of a vehicle according to an aspect of the present invention manages a controller constituting a network of a vehicle on the basis of vehicle information and monitors the controllers to promptly determine a controller error, It is possible to prevent an error that may occur because the networks do not match each other.

1 is a block diagram illustrating a network controller monitoring apparatus for a vehicle according to an embodiment of the present invention.
2 is a view for explaining a monitoring state of a network controller according to an embodiment of the present invention.
3 is a flowchart illustrating a method of controlling a network controller according to an embodiment of the present invention.

Hereinafter, a method of monitoring a network controller of a vehicle according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a block diagram illustrating a network controller monitoring apparatus for a vehicle according to an embodiment of the present invention. FIG. 2 is a view for explaining a monitoring state of a network controller according to an embodiment of the present invention.

As shown in FIG. 1, a network controller monitoring apparatus for a vehicle according to an embodiment of the present invention includes a power supply unit 200, a storage unit 300, a diagnosis control unit 100, and an output unit 500.

The power supply device 200 may be a battery as a device for supplying power to the diagnosis control unit 100 and the network 400. [

The storage unit 300 stores the predicted network configured based on the vehicle information to monitor the controllers 411 to 416 constituting the network 400 of the vehicle so that the diagnosis control unit 100 monitors the controllers 411 to 416 So that they can be used immediately without configuring a new network.

The diagnostic control unit 100 is connected to the network 400 of the vehicle and receives vehicle identification information (VIN: Vehicle Identification Number) when the power is first supplied from the power supply apparatus 200 to initialize the expected network according to the vehicle information, Monitors the information of the controllers 411 to 416 constituting the network 400 according to preset monitoring conditions for monitoring to construct a predicted network and outputs the monitoring results of the controllers 411 to 416 according to the expected network.

In this embodiment, the first network 410, the second network 420, and the third network 430 are connected to the network of the vehicle, and the diagnosis control unit 100 not only has a function of monitoring the network controllers, And a gateway function for mediating the user.

The gateway function is generally a function of connecting one network to another network, and each network can transmit data in a protocol different from other network. In this case, if a network using another protocol is directly connected, It is converted into a network that uses different protocols through the gateway and intermediated.

Here, the network may be a Control Area Network (CAN) network, and the CAN network may be a Low Speed CAN Network or a High Speed CAN Network.

For example, the first network 410 may include a first controller 411, a second controller 412, a third controller (not shown) as a controller of the electronic devices connected to the bus 401 of the first network 410 413, a fourth controller 414, a fifth controller 415, and a sixth controller 416.

When the power is first supplied from the power supply unit 200, the diagnosis control unit 100 requests the vehicle control unit (not shown) connected to the network to request vehicle information (VIN: Vehicle Identification Number) If the vehicle information is changed due to replacement of surveillance device or A / S by deleting the initialized network, it is possible to detect an error that occurs when monitoring the network controller based on the stored expected network .

On the other hand, when the vehicle information is the same, if the diagnostic control unit 100 satisfies the predetermined monitoring condition for each network, the controller 411 - 416 is monitored in accordance with the expected network stored in the storage unit 300, do. At this time, if the expected network is initialized, information of the controllers 411 to 416 constituting the network is grasped for a predetermined time, and the predicted network is configured and stored in the storage unit 300.

For example, if the first network 410 is a low-speed CAN network, the monitoring condition may be a condition that becomes active from an inactive state (Active). In this case, when the power is first supplied from the power supply apparatus 200 and the first network 410 is activated from the inactive state, the diagnosis control unit 100 controls the first controller 411 constituting the first network 410 ) To the sixth controller 416 for a predetermined period of time (5 seconds) to construct a predicted network.

At this time, the diagnostic control unit 100 transmits a network management message to the controllers 411 to 416 transmitted and received between the first controller 411 and the sixth controller 416 in the case of a low-speed CAN network, The information of the controllers 411 to 416 can be grasped.

For example, the first controller 411 may store its information in the network management message and transmit it to the second controller 412, and the second controller 412 may further store its information in the network management message To another controller. Since the information of each of the controllers 411 to 416 is stored in the process of transmitting the network management message between the controllers 411 to 416 in this manner, the diagnosis control unit 100 can recognize the network management messages, ) Can be grasped at a time.

When the first network 410 is a high-speed CAN network, the first controller 410 transmits the periodically transmitted signals from the first controller 411 to the sixth controller 416, Message to receive information of the controllers 411 to 416.

The diagnostic control unit 100 monitors the controllers 411 to 416 of the network and outputs a monitoring result when the predicted network is configured as described above.

For example, referring to FIG. 2, FIG. 2 (A) is an example of a predicted network constituted by the diagnostic control unit 100, and FIG. 2 (B) 416).

2 (A), the fifth controller 415 constituting the predicted network is not recognized in FIG. 2 (B). In this case, the diagnosis controller 100 determines that an error has occurred in the fifth controller 415 And output error information.

Meanwhile, when the diagnosis controller 100 monitors the controllers 411 through 416 of the network, if a new controller not included in the expected network is identified, the new controller can be added to the expected network to update the predicted network.

That is, FIG. 2B includes a new sixth controller 416 that is not included in the expected network of FIG. 2A. When the sixth controller 416 is connected to the first network 410 by the addition of the electronic device, the sixth controller 416 is detected when the first controller 410 monitors the first network 410 .

Therefore, the diagnostic control unit 100 updates the configuration of the expected network as shown in FIG. 2C so that the sixth controller 416 is included.

On the other hand, the diagnostic control unit 100 may delete the controller information included in the expected network when updating the predicted network. For example, if the fifth controller 415 in the first network 410 is no longer needed due to electronic device removal, the diagnostic control 100 may delete the fifth controller 415 from the expected network.

The output unit 500 outputs the monitoring result of the diagnosis control unit 100. [

As described above, according to the network controller monitoring apparatus for a vehicle according to the embodiment of the present invention, the controller configuring the network of the vehicle is managed based on the vehicle information, and the controllers are monitored to promptly determine the controller error As well as preventing errors that may occur because the vehicle information and the expected network do not match each other.

3 is a flowchart illustrating a method of controlling a network controller according to an embodiment of the present invention.

As shown in FIG. 3, in the method of controlling a network controller according to an embodiment of the present invention, power is first applied to the diagnosis control unit 100 and the network 400 in the power supply 200 (S10).

 The diagnostic control unit 100 requests the vehicle control unit (not shown) connected to the network 400 for vehicle information (VIN: Vehicle Identification Number) when the power is first supplied from the power supply unit 200 (S20).

The diagnostic control unit 100 receives the vehicle information from the vehicle controller (S30), and compares the received vehicle information with the vehicle information stored in the storage unit 300 (S40).

If it is not the same as the stored vehicle information in step S40, the diagnosis control unit 100 initializes and deletes the expected network stored in the storage unit 300 (S50).

In the case where the vehicle information is not the same, when the vehicle information is changed due to the replacement of the monitoring apparatus and the A / S by initializing the stored expected network, it occurs when the network controllers 411 to 416 are monitored based on the stored expected network Thereby preventing the detection of errors.

In step S40, the vehicle information is the same or the predicted network is initialized in step S50, and then the diagnosis control unit 100 determines whether the preset monitoring condition for each network 400 is satisfied (S60).

In this case, the monitoring condition may be a condition that becomes inactive (active) to active (active), and may be set differently for each network such as a low-speed CAN network and a high-speed CAN network.

In step S60, the monitoring condition is determined. If the monitoring condition is not satisfied, it is determined whether the monitoring condition is continuously satisfied.

However, if the monitoring condition is satisfied in step S60, the diagnostic control unit 100 determines whether there is an expected network in the storage unit 300 (S70)

If the expected network does not exist in step S70, the diagnostic control unit 100 grasps the information of the controllers 411 to 416 of the network and constructs and stores the predicted network in step S80.

For example, as shown in FIG. 2A, the first controller 411 to the fifth controller 415 may be configured as a predicted network.

After configuring the anticipated network, the diagnosis control unit 100 monitors the controllers 411 to 416 of the network (S90)

On the other hand, if there is a predicted network in step S70, the diagnostic control unit 100 monitors the controllers 411 to 416 according to the expected network stored in the storage unit 300 without configuring the expected network in step S90.

The diagnostic control unit 100 monitors the controllers 411 to 416 in step S90 and outputs a monitoring result (S100)

For example, the diagnostic control unit 100 may include a first controller 411, a second controller 412, a third controller 413, a fourth controller 414, and a sixth controller 416, and then compares it with the expected network stored in the storage unit 300 to determine whether an error has occurred, and outputs the monitoring result.

That is, when comparing (A) and (B) in FIG. 2, the fifth controller 415 included in the expected network is not recognized in the monitoring result, so that the diagnosis controller 100 can determine that an error has occurred.

After monitoring the network controllers 411 to 416, the diagnostic control unit 100 updates the expected network according to the monitoring result (S110).

Referring to FIG. 2B, since the sixth controller 416 has been detected as a result of the monitoring, the diagnostic control unit 100 updates the expected network to include the sixth controller 416 as shown in FIG. 2C .

On the other hand, when the result of monitoring the controllers 411 to 416 is identical to the expected network configuration, the diagnostic control unit 100 maintains the expected network configuration.

On the other hand, if the fifth controller 415 is no longer needed in the first network 410 due to the removal of the electronic device, the diagnosis controller 100 deletes and updates the fifth controller 415 in the expected network, Can be improved.

As described above, according to the network controller monitoring method for a vehicle according to the embodiment of the present invention, the controller configuring the network of the vehicle is managed based on the vehicle information, and the controllers are monitored to quickly determine the controller error As well as preventing errors that may occur because the vehicle information and the expected network do not match each other.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of the present invention should be determined by the following claims.

100: diagnosis control unit 200: power supply unit
300: storage unit 400: network
401: bus 410: first network
420: second network 430: third network

Claims (2)

delete When the power is first applied to the network, the diagnostic control unit requests vehicle information;
The diagnostic control unit receiving the vehicle information and determining whether the vehicle information is the same;
Determining whether the vehicle information is the same or not, and determining whether a monitoring condition previously set for the network is satisfied if the diagnosis control unit determines that the vehicle information is the same;
If the monitoring condition is satisfied, constructing the expected network by grasping information of controllers constituting the network according to presence or absence of a predicted network; And
Monitoring the controllers by the diagnostic control unit and outputting a monitoring result in comparison with the expected network,
Initializing the expected network if the diagnostic control unit determines that the vehicle information is the same or not and is not the same;
Updating the predicted network by adding a new controller to the predicted network or deleting a controller with an error from the predicted network according to a monitoring result of the controllers according to the predicted network; And
Further comprising the step of converting and mediating data of the network using different protocols through the gateway function,
Wherein the step of grasping the information of the controllers grasps the information of the controllers using the network management message transmitted and received between the controllers when the network is a low speed CAN network. Of the network controller.

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