KR20170039950A - Apparatus and method for inspecting vehicle - Google Patents

Apparatus and method for inspecting vehicle Download PDF

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Publication number
KR20170039950A
KR20170039950A KR1020150139190A KR20150139190A KR20170039950A KR 20170039950 A KR20170039950 A KR 20170039950A KR 1020150139190 A KR1020150139190 A KR 1020150139190A KR 20150139190 A KR20150139190 A KR 20150139190A KR 20170039950 A KR20170039950 A KR 20170039950A
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KR
South Korea
Prior art keywords
communication
vehicle controller
vehicle
request command
response message
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KR1020150139190A
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Korean (ko)
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KR101734255B1 (en
Inventor
김진석
양창모
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현대자동차주식회사
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Priority to KR1020150139190A priority Critical patent/KR101734255B1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/40—Remote control systems using repeaters, converters, gateways

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

The present invention relates to a terminal for inspecting a vehicle and an inspection method using the same. The present invention includes a first communication unit which receives a response message corresponding to an inspection result of an electronic component from a vehicle controller by communicating with the vehicle controller and transmits a diagnosis request command to the vehicle controller, a second communication unit which receives the diagnosis request command from a diagnosing device by communicating with the diagnosing device and transmits the response message and a response time to the diagnosing device, and a control unit which detects a difference between a time when the diagnosis request command is received and a time when the response message is received, as the response time. Accordingly, the present invention can accurately diagnose the inspection result of the vehicle controller regardless of a distance between the vehicle controller and the diagnosing device or the presence or absence of an intermediate device.

Description

[0001] APPARATUS AND METHOD FOR INSPECTING VEHICLE [0002]

The present invention relates to a vehicle inspection apparatus and inspection method.

In recent years, various combinations of advanced electronic control technologies as well as physical control by combination of complex machines and mechanisms have been combined to provide improved driving stability and efficiency to the driver.

For example, various sensors and electric components for the convenience of the driver or passengers, such as an air conditioning system and an AV (Audio Video) system, are mounted. These electric parts are important factors for the convenience of the user and for checking the condition of the vehicle. Therefore, it is necessary to check whether various electric parts mounted on the assembled vehicle are not operated or are malfunctioning.

Therefore, there is a process of inspecting electric components in a production factory of a vehicle, and an electronic control diagnostic device for diagnosing electric components is used to inspect a large number of vehicles within a limited time.

Accordingly, communication means (diagnosis terminal) is constituted in the vehicle to output the information of the electric component to the external electronic control diagnostic apparatus. Generally, the electronic control diagnosis device is connected to the diagnosis terminal of the vehicle through a wired cable to diagnose the state of the electric component. For example, the electronic control diagnostic apparatus transmits a diagnosis request command to the vehicle controller that manages the electric component, and stores the time when the diagnosis request command is transmitted. Then, the vehicle controller inspects the electronic components based on the diagnosis request command and sends the inspection result to the electronic control diagnostic device through the cable.

Then, the electronic control diagnostic apparatus diagnoses whether or not the electric parts are normally operated by checking the difference between the time of transmitting the inspection result and the diagnosis request command and the time of receiving the inspection result (hereinafter referred to as the response time).

However, because of the environmental characteristics of the production plant, the wired cable connected to the electronic control diagnosis device is used longer than the specification. As a result, the transmission of the inspection result output from the vehicle controller is delayed, and the response time may vary. In this case, the electronic control diagnostic apparatus can diagnose the state of the electric component by mistake. Further, noise may be generated in the communication signal transmitted / received via the cable, or the signal may be distorted, resulting in a communication error.

Embodiments of the present invention provide a vehicle inspection apparatus and an inspection method that can accurately diagnose a test result inspected by a vehicle controller regardless of the distance between the vehicle controller and the diagnostic apparatus or the presence or absence of the intermediate apparatus.

A vehicle inspection apparatus relaying communication between a vehicle controller for controlling electrical components inside the vehicle according to an embodiment of the present invention and a diagnostic apparatus for diagnosing abnormality of the electrical component is connected to the vehicle controller, A first communication unit for receiving a response message corresponding to a result of inspection of a part and transmitting a diagnosis request command to the vehicle controller; A second communication unit that communicates with the diagnosis apparatus to receive the diagnosis request command from the diagnosis apparatus, and transmits the response message and the response time to the diagnosis apparatus; And a controller for detecting a difference between the time at which the diagnosis request command is received and the time at which the response message is received, as the response time.

Here, the controller stores the received time of the diagnosis request command, converts the diagnosis request command into a communication method of the vehicle controller, and transmits the communication request to the first communication unit. The first communication unit is connected to the vehicle controller through any one of high-speed CAN (Controller Area Network) communication, low-speed CAN communication, and K-line communication.

The first communication unit is connected to the diagnostic terminal of the vehicle controller via a connector. The control unit receives the response message, detects the response time, converts the response message and the response time into a serial interface, and transmits the response message to the second communication unit. And, the second communication unit makes wired or wireless communication with the diagnosis apparatus. Also, the diagnostic device checks the response message and the response time to diagnose the abnormality of the electrical component.

A vehicle inspection method of a vehicle inspection apparatus for relaying communication between a vehicle controller for controlling electrical components inside a vehicle according to an embodiment of the present invention and a diagnostic apparatus for diagnosing abnormality of the electrical components, Receiving the command and transmitting the command to the vehicle controller; Receiving a response message corresponding to a result of inspecting the electric component according to the diagnosis request command from the vehicle controller; Detecting a difference between a time at which the diagnosis request command is received and a time at which the response message is received as a response time; And transmitting the response message and the response time to the diagnostic device.

Here, the step of transmitting the diagnosis request command to the vehicle controller may include: connecting to the diagnostic apparatus through a wired or wireless communication; Storing the time at which the diagnostic request command was received; And converting the diagnostic request command into a communication scheme of the vehicle controller.

Receiving the response message comprises: connecting to a diagnostic terminal of the vehicle controller via a connector; Connecting to the vehicle controller through one of high-speed CAN (Controller Area Network) communication, low-speed CAN communication, and K-line communication; And receiving the response message and converting the response message to a serial interface.

In the embodiment of the present invention, the terminal for vehicle inspection stores the time at which the diagnosis request command is received from the diagnostic device, detects the response time of the result of the inspection of the electric component from the vehicle controller, The test results inspected by the vehicle controller can be accurately diagnosed irrespective of the distance between the apparatuses and the presence or absence of the intermediate apparatus.

In addition, the embodiment of the present invention can increase the physical distance between the vehicle and the diagnostic apparatus according to the wired / wireless communication distance supported by the vehicle inspection terminal, thereby improving the productivity of the production plant.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a vehicle inspection system according to an embodiment of the present invention; Fig.
2 is a detailed block diagram of the relay terminal 200 shown in FIG.
3A shows a communication signal received by the diagnostic apparatus 300 according to a comparative example;
FIG. 3B illustrates a communication signal received by the diagnostic device 300 according to an embodiment. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention in the drawings, parts not related to the description are omitted. Like numbers refer to like parts throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between. Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing a vehicle inspection system according to an embodiment of the present invention.

Referring to FIG. 1, a vehicle inspection system according to an embodiment of the present invention includes a vehicle controller 100, an intermediate terminal 200, and a diagnostic apparatus 300. The vehicle controller 100 receives the diagnosis request command from the relay terminal 200, inspects electrical components based on the diagnosis request command, generates a response message as a response message, and transmits the response message to the relay terminal 200.

Here, the vehicle controller 100 may include a controller for controlling electrical components in the vehicle 1 such as an engine control unit (ECU), a battery management system (BMS), and a shift control unit (TCU).

The relay terminal 200 relays communication between the vehicle controller 100 and the diagnostic device 300. [ Here, the relay terminal 200 may be a wireless OBD (On-Board Diagnostics) connector.

To this end, the relay terminal 200 is connected to the diagnostic terminal 2 of the vehicle controller 100 via a connector, and communicates with the diagnostic device 300 in a wired or wireless manner. Here, the relay terminal 200 can be connected to the vehicle controller 100 through any one of high-speed CAN (Controller Area Network) communication, low-speed CAN communication, and K-line communication.

Also, the relay terminal 200 may be connected to the diagnostic device 300 by wire or wireless communication. In case of wired communication, it can be connected by using a wireless local area network (WLAN) or a universal serial bus (USB). In the case of wireless communication, either Wi-Fi, IR, ZigBee, Bluetooth, Can be connected using one.

The relay terminal 200 receives a diagnosis request command from the diagnosis apparatus 300 in a wired or wireless connection with the diagnosis apparatus 300 and stores a time at which the diagnosis request command is received (hereinafter referred to as a diagnosis request time). Then, it sends a diagnosis request command to the vehicle controller 100. Here, the relay terminal 200 can convert the diagnostic request command received from the diagnostic device 300 through the serial interface into the communication method of the corresponding vehicle controller 100 and transmit the same.

The relay terminal 200 receives the response message corresponding to the diagnosis request command from the vehicle controller 100 and detects the difference between the diagnosis request time and the time when the response message is received (response time). The relay terminal 200 transmits the response message and the response time to the diagnostic device 300. [ Here, the relay terminal 200 may convert the response message and the response time into a serial interface, and transmit the response message and the response time to the diagnostic device 300 according to the wire / wireless communication standard.

The diagnostic device 300 transmits a diagnosis request command to the relay terminal 200 when it is connected to the relay terminal 200 and receives a response message and response time from the relay terminal 200 and confirms the response message and response time, .

For example, the diagnostic apparatus 300 according to the embodiment of the present invention can diagnose the abnormality of electrical components based on whether the response time is within a preset reference time.

For example, when the reference time is 50 ms, the diagnosis apparatus 300 diagnoses the electric component as pass if the response time is within 50 ms, and diagnoses that the electric component is fail when the response time exceeds 50 ms .

2 is a detailed block diagram of the relay terminal 200 shown in FIG.

2, the transit terminal 200 includes a first communication unit 210, a control unit 220, a second communication unit 230, a power unit 240, a display unit 250, and a memory (not shown) 260). The first communication unit 210 is connected to the vehicle controller 100 through the data bus lines 21 to 26. The first communication unit 210 receives the diagnosis request command from the control unit 220 and transmits the diagnosis request command to the vehicle controller 100, And transmits the response message to the control unit 220. [0050]

The first communication unit 210 includes a high-speed CAN communication unit 212, a low-speed CAN communication unit 214, and a k-line communication unit 216. The high-speed CAN communication unit 212 is connected to the high-speed CAN lines 21 and 22 among the diagnostic terminals 2 of the vehicle 1 and communicates with the vehicle controller 100 through the high-speed CAN communication system. Here, the high-speed CAN communication can transmit data at a speed of about 500kbps.

The low speed CAN communication unit 214 is connected to the low speed CAN lines 23 and 24 among the diagnostic terminals 2 of the vehicle 1 and communicates with the vehicle controller 100 through a low speed CAN communication method. Here, the low-speed CAN communication can transmit data at a speed of about 100 kbps.

The k-line communication unit 216 is connected to the k-line 25 among the diagnostic terminals 2 of the vehicle 1 and communicates with the vehicle controller 100 in a k-line communication manner. Here, the k-line communication can transmit data at a speed of about 10.8 kbps.

The control unit 220 converts the diagnostic request command requested by the serial interface in the diagnostic apparatus 300 into the communication method of the corresponding vehicle controller 100 and transmits the command to the first communication unit 210. [ Then, the controller 220 stores the diagnosis request time in the memory 260, which received the diagnosis request command.

The control unit 220 detects the difference between the diagnosis request time and the received time of the response message as a response time and converts the response message and the response time received from the vehicle controller 100 into a serial interface to be transmitted to the second communication unit 230 .

The second communication unit 230 connects to the diagnostic device 300 according to the wire / wireless standard and transmits a diagnosis request command received from the diagnostic device 300 to the control unit 220. The second communication unit 230 transmits a response message and response And transmits the time to the diagnostic device 300.

The power supply unit 240 is connected to the power supply lines 26 and 27 among the diagnostic terminals 2 of the vehicle 1 to supply power to the first communication unit 210, the control unit 220 and the second communication unit 230.

The display unit 250 displays the communication status of the relay terminal 200 and includes first to fourth display lights 251 to 254. The first to fourth display lights 251 to 254 may include LED elements. The first indicator lamp 251 indicates power on / off, and the second indicator lamp 252 indicates a communication connection status. The third indicator lamp 253 indicates the progress of the data transfer. The fourth indicator 254 indicates whether an error has occurred in the data transmission.

FIG. 3A is a diagram illustrating a communication signal received by the diagnostic apparatus 300 according to the comparative example, and FIG. 3B is a diagram illustrating communication signals received by the diagnostic apparatus 300 according to the embodiment.

3A, when the vehicle controller 100 and the diagnostic apparatus 300 are connected by a wire cable and the length of the cable is longer than the specification due to the environment of the production process, It can be seen that a noise A is generated in the communication signal inputted to the communication terminal 1 or a communication error occurs due to the signal distortion B. [

On the other hand, in the embodiment of the present invention, it can be seen that the communication signal input to the diagnostic apparatus is stable by using the relay terminal 200. That is, in the embodiment of the present invention, since the vehicle controller 100 and the diagnostic apparatus 300 are connected to each other in a wired / wireless communication manner without using a wired cable, it is possible to prevent a noise or a communication error from occurring due to the length of the wired cable .

The transit terminal 200 according to the embodiment of the present invention is connected to the diagnostic device 300 in a wired or wireless manner, and thus the distance used for the wired / wireless module, for example, Wi-Fi is about 100 m, Area can be expanded. As a result, the productivity of the production plant can be improved.

In addition, the embodiment of the present invention stores the diagnosis request time in the relay terminal 200, measures the time at which the response message is received, and detects the response time corresponding to the difference between the diagnosis request time, The response time can be confirmed accurately regardless of the response time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: vehicle controller
200: relay terminal
300: Diagnostic device

Claims (10)

A vehicle inspection apparatus for relaying communication between a vehicle controller for controlling electrical components inside a vehicle and a diagnostic apparatus for diagnosing an abnormality of the electrical components,
A first communication unit communicating with the vehicle controller to receive a response message corresponding to a result of inspecting the electric component from the vehicle controller and to transmit a diagnosis request command to the vehicle controller;
A second communication unit that communicates with the diagnosis apparatus to receive the diagnosis request command from the diagnosis apparatus, and transmits the response message and the response time to the diagnosis apparatus; And
A controller for detecting a difference between a time when the diagnosis request command is received and a time when the response message is received,
And the vehicle inspection device. The method according to claim 1,
The control unit
Stores the time at which the diagnosis request command is received, and converts the diagnosis request command into a communication method of the vehicle controller and transmits the communication request to the first communication unit. 3. The method of claim 2,
The first communication unit
Wherein the vehicle controller is connected to any one of a high-speed CAN (Controller Area Network) communication, a low-speed CAN communication, and a K-line communication. The method according to claim 1,
The first communication unit
And connected to a diagnostic terminal of the vehicle controller by a connector. The method according to claim 1,
The control unit
The response message is received, the response time is detected, and the response message and the response time are converted into a serial interface and transmitted to the second communication unit. 6. The method of claim 5,
The second communication unit
And a wired or wireless communication with the diagnostic device. The method according to claim 1,
The diagnostic device
And checking the response message and the response time to diagnose the abnormality of the electric component. A vehicle inspection method for a vehicle inspection apparatus relaying communication between a vehicle controller for controlling electrical components inside a vehicle and a diagnostic apparatus for diagnosing an abnormality of the electrical component,
Receiving a diagnostic request command from the diagnostic device and transmitting the diagnostic request command to the vehicle controller;
Receiving a response message corresponding to a result of inspecting the electric component according to the diagnosis request command from the vehicle controller;
Detecting a difference between a time at which the diagnosis request command is received and a time at which the response message is received as a response time; And
Transmitting the response message and the response time to the diagnostic device
And the vehicle inspection method. 9. The method of claim 8,
The step of transmitting the diagnosis request command to the vehicle controller
Connecting to the diagnostic device through wired or wireless communication;
Storing the time at which the diagnostic request command was received; And
Converting the diagnostic request command into a communication method of the vehicle controller
And the vehicle inspection method. 9. The method of claim 8,
The step of receiving the response message
Connecting to a diagnostic terminal of the vehicle controller with a connector;
Connecting to the vehicle controller through one of high-speed CAN (Controller Area Network) communication, low-speed CAN communication, and K-line communication; And
Receiving the response message and converting it into a serial interface
And the vehicle inspection method.
KR1020150139190A 2015-10-02 2015-10-02 Apparatus and method for inspecting vehicle KR101734255B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106970612A (en) * 2017-05-12 2017-07-21 北京汽车研究总院有限公司 The diagnostic method and device of a kind of controller state
KR102094494B1 (en) * 2018-12-10 2020-03-27 한국교통안전공단 Communication Module Device for Diagnosis and Inspection on Electronic device of Automobile
CN112099465A (en) * 2019-06-17 2020-12-18 现代自动车株式会社 Vehicle diagnosis communication device and method, and system including vehicle diagnosis communication device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106970612A (en) * 2017-05-12 2017-07-21 北京汽车研究总院有限公司 The diagnostic method and device of a kind of controller state
KR102094494B1 (en) * 2018-12-10 2020-03-27 한국교통안전공단 Communication Module Device for Diagnosis and Inspection on Electronic device of Automobile
CN112099465A (en) * 2019-06-17 2020-12-18 现代自动车株式会社 Vehicle diagnosis communication device and method, and system including vehicle diagnosis communication device

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