WO2017179817A1 - Procédé pour un test d'évaluation d'interface entre des composants électroniques d'automobile - Google Patents

Procédé pour un test d'évaluation d'interface entre des composants électroniques d'automobile Download PDF

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WO2017179817A1
WO2017179817A1 PCT/KR2017/002260 KR2017002260W WO2017179817A1 WO 2017179817 A1 WO2017179817 A1 WO 2017179817A1 KR 2017002260 W KR2017002260 W KR 2017002260W WO 2017179817 A1 WO2017179817 A1 WO 2017179817A1
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signal
real
time
terminal device
data
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PCT/KR2017/002260
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English (en)
Korean (ko)
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오승욱
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슈어소프트테크주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00—Simulators for teaching or training purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks

Definitions

  • the present invention relates to a test method for the evaluation of the interoperability between automotive electronics, and more particularly, to a test method of the interworking evaluation test tool for automotive electronics based on CAN communication.
  • CAN controller area network
  • LIN Local Area Network
  • Various communication protocols have been developed depending on the importance of the data and the size of the data such as Interconnect Network, Media Oriented Systems Transport (MOST), and FlexRay.
  • CAN is widely used as a distributed multicast-based communication protocol among representative automotive electronics. Based on the understanding of the CAN message specification, it is possible to define and utilize messages for communication between various electronic devices.
  • CAN communication is used in a variety of systems that require high reliability, such as automotive, aircraft, and factory automation, due to its low cost and simplicity, and its inherent error identification and retransmission capabilities. Therefore, many studies are being conducted to verify the reliability of CAN communication, but there is no efficient method for evaluating the accuracy and performance of interworking between automotive electronics.
  • An object of the present invention was devised to meet the needs of the prior art described above, and when the automotive electronics are interlocked through CAN communication, an efficient automotive electronics for evaluating the accuracy and performance of the interworking between the automotive electronics
  • the purpose is to present a linkage evaluation test method.
  • a method of transmitting a CAN message or a CAN signal received from a terminal device and a CAN data bus to the terminal device and transmitting the CAN message or CAN signal received from the terminal device to the CAN data bus is provided.
  • the interworking evaluation test for the automotive electronics of a test tool installed and executable in the terminal device A method comprising: executing a test case previously stored in a database of the terminal device or a database of the test tool itself to guide a test procedure defined in the test case; Receiving real-time CAN signals from the CAN interworking device, and generating CAN data by interpreting the received real-time CAN signals; And automatically outputting a comparison result by comparing the generated CAN data with a preset expected value.
  • the test tool may include a simulator for shaping the real-time CAN data, and the comparison result may be automatically output by the simulator.
  • a test method comprising: executing an engineering mode installed in the CAN interworking device; Receiving a real-time CAN signal and a system log from the CAN companion device; Interpreting the received real-time CAN signal to generate CAN data, and interpreting the received system log to generate system log data; And comparing the generated CAN data with the system log data and automatically outputting a comparison result, wherein the system log is a message to be sent to the CAN data bus by the CAN interworking device when a CAN signal is generated. Is defined in a predetermined promised manner.
  • the predetermined method may be an Android Debug Bridge (ADB).
  • ADB Android Debug Bridge
  • a method for transmitting a CAN message or a CAN signal received from a terminal device, a CAN data bus to the terminal device, and a CAN message or CAN signal received from the terminal device to the CAN data bus comprising a CAN device for transmitting, and at least one CAN interworking device connected to the CAN device and the CAN data bus, interworking between the automotive electronics of a test tool installed and executable in the terminal device.
  • An evaluation test method comprising: receiving a real-time CAN signal and a CAN signal log from the CAN interworking device; Interpreting the received real-time CAN signal and the CAN signal log to generate real-time CAN signal data and CAN signal log data; And comparing the generated real-time CAN signal data with the CAN signal log data and automatically outputting a comparison result, wherein the CAN signal log is configured to actually operate the CAN interworking device according to a predetermined scenario.
  • Information recorded in the companion device and the real-time CAN signal is a CAN signal transmitted in real time from the CAN companion device when the CAN companion device is re-operated according to the predetermined scenario.
  • the method may further include determining whether to match a recorded CAN signal sequence of the CAN signal log and a real-time CAN signal sequence of the real-time CAN signal using a certain heuristic. have.
  • the determining whether the matching step if the real-time CAN signal is received, comparing the received real-time CAN signal with the last CAN signal to determine whether a change occurred between the real-time CAN signal and the last CAN signal; Comparing the real-time CAN signal with a recorded CAN signal when it is determined that the real-time CAN signal is changed based on the last CAN signal; If the real-time CAN signal is not the same as the recorded CAN signal, comparing the real-time CAN signal with a next value of the recorded CAN signal; And reporting the missing CAN signal indicating that a value which should have occurred before the real-time CAN signal is missing when the real-time CAN signal is equal to a next value of the recorded CAN signal.
  • a method includes: a terminal device, a first CAN interworking device, a second CAN interworking device interlocked with the first CAN interworking device, and between the first CAN interworking device and the second CAN interworking device.
  • Evaluation system for inter-vehicle electronics including a CAN data bus connected to the CAN device and a CAN device for transmitting a real-time CAN signal transmitted from the first CAN interworking device to the second CAN interworking device through the CAN data bus to the terminal device.
  • the interworking evaluation test method for automotive electronics of the test tool that can be installed and executed in the terminal device, by executing a test case stored in the database of the terminal device or the database of the test tool itself in advance Guiding a test procedure defined in a test case through a display device of the terminal device;
  • the real-time CAN signal transmitted from the first CAN interlocking device to the second CAN interlocking device by a user operating the first CAN interlocking device according to the test procedure guided through the display device of the terminal device.
  • a method includes: a terminal device, a first CAN interworking device operable in a pre-stored engineering mode, a second CAN interworking device interlocked with the first CAN interlocking device, and the first CAN interworking device; CAN data bus connected between the second CAN interworking device and CAN for transmitting real-time CAN signals and system logs transmitted from the first CAN interworking device to the second CAN interworking device through the CAN data bus to the terminal device.
  • the inter-assessment evaluation test method for automotive electronics of the test tool that can be installed and executed in the terminal device, in advance in the database of the terminal device or the database of the test tool itself Run a saved test case to test the test procedures defined in the test case. Guiding through a display device of the terminal device; Transmitting from the first CAN interworking device to the second CAN interworking device by the user operating the first CAN interworking device and operating the engineering mode according to the test procedure guided through the display device of the terminal device.
  • the system log may include: When the real-time CAN signal is generated, information about a message to be sent to the CAN data bus is defined in a predetermined promised manner.
  • the test tool may include a simulator for shaping the real-time comparison result or shaping the response of the second CAN interworking device by the real-time CAN signal.
  • a method includes: a terminal device, a first CAN interworking device, a second CAN interworking device interlocked with the first CAN interworking device, and between the first CAN interworking device and the second CAN interworking device.
  • Evaluation system for inter-vehicle electronics including a CAN data bus connected to the CAN device and a CAN device for transmitting a real-time CAN signal transmitted from the first CAN interworking device to the second CAN interworking device through the CAN data bus to the terminal device.
  • the first CAN interworking device is pre-recorded in the first CAN interworking device by operating by the user according to a predetermined scenario Receiving a CAN signal log; Receiving, by the user, the real-time CAN signal transmitted from the first CAN interworking device to the second CAN interworking device by re-operating the first CAN interworking device according to the predetermined scenario; Interpreting the received real-time CAN signal and the CAN signal log to generate real-time CAN signal data and CAN signal log data; And comparing the generated real-time CAN signal data with the CAN signal log data and automatically outputting a real-time comparison result through the display device of the terminal device.
  • FIG. 1 is a configuration diagram of a system for evaluation of interworking between automotive electronics based on CAN communication according to an embodiment of the present invention.
  • FIG. 2 is a configuration diagram of a system for evaluation of interworking between electronic devices based on CAN communication according to another embodiment of the present invention.
  • 3 is an example of a simulator provided by the test tool of the present invention.
  • 4 to 5 are diagrams for explaining the interaction-based evaluation function provided by the test tool of the present invention.
  • 6 to 7 are diagrams for explaining the batch evaluation function provided by the test tool of the present invention.
  • FIG. 8 is a view for explaining a history-based evaluation function provided by the test tool of the present invention.
  • FIG. 9 is a flowchart illustrating a method of determining whether to match a 'recorded CAN signal sequence' recorded in a CAN signal log with a 'real-time CAN signal sequence' of a real-time CAN signal using a certain heuristic. to be.
  • FIG. 1 is a configuration diagram of a system for evaluation of interworking between automotive electronics based on CAN communication according to an embodiment of the present invention.
  • the interlock evaluation system for automotive electronics shown in FIG. 1 may be referred to as a so-called 'real vehicle interlocking mode'.
  • a system for assessing interworking among electronics based on CAN communication includes a terminal device 100, a CAN device 300, a first CAN interworking device 500, and A second CAN interworking device 700 is included.
  • the terminal device 100 includes various devices such as a desktop, a notebook, a smartphone, and a tablet.
  • the terminal device 100 provides an environment in which the test tool of the present invention can be installed and executed.
  • the terminal device 100 includes a display device, and the test tool of the present invention can be displayed through the provided display device.
  • the terminal device 100 includes a processor therein for executing the test tool of the present invention.
  • the terminal device 100 includes an input device such as a keyboard, a mouse, and a touch sensor panel, and a user may input predetermined data with the test tool of the present invention through the provided input device and the processor.
  • the test tool of the present invention is installed in the terminal device 100 and can be executed in the terminal device 100.
  • the test tool of the present invention may be executed by a processor of the terminal device 100 and displayed on the display device of the terminal device 100.
  • the CAN device 300 is a device capable of CAN communication.
  • the CAN device 300 may exchange a CAN message or a CAN signal with a first CAN interworking device 500 through a CAN data bus, and also a CAN message or a second CAN interworking device 700. Can send and receive CAN signals. Also, a CAN message or a CAN signal exchanged between the first CAN interworking device 500 and the second CAN interworking device 700 may be read.
  • the CAN signal is included in the CAN message as a subordinate concept of the CAN message.
  • the CAN device 300 may transmit the received CAN message or CAN signal to the terminal device 100.
  • the CAN device 300 may transmit the received CAN message or CAN signal to the terminal device 100 as it is, or transmit the processed CAN data to the terminal device 100 by processing the received CAN message or CAN signal.
  • processing the received CAN message or CAN signal may mean that the CAN device 300 converts the received CAN message or CAN signal into predetermined data that the terminal device 100 can process.
  • the CAN device 300 may transmit a CAN message or a CAN signal received from the terminal device 100 through a CAN data bus.
  • the transmitted CAN message or CAN signal is transmitted to the first CAN interlocking device 500 and / or the second CAN interlocking device 700 and received the first CAN interlocking device 500 and / or the second CAN interlocking device. 700 may perform a predetermined function based on a CAN message or a CAN signal.
  • the first CAN interworking device 500 and the second CAN interworking device 700 may be mounted on an automobile and may be an electronic control unit (ECU) capable of CAN communication with each other.
  • the first CAN interworking device 500 and the second CAN interworking device 700 may exchange CAN messages or CAN signals with each other through CAN communication.
  • the first CAN interworking device 500 is AVN (Audio Video Navigation) that can be mounted in a vehicle
  • the second CAN interworking device 700 is actually a cluster mounted inside a manufactured vehicle.
  • the first CAN interworking device 500 and the second CAN interworking device 700 are not limited to AVN and clusters, respectively, and the first CAN interworking device 500 is an electronic control unit (ECU) that can be mounted in an automobile.
  • ECU electronice control unit
  • an airbag control unit ACU
  • BCM body control module
  • ECU engine control unit
  • PCM powertrain control module
  • TCU Transmission Control Unit
  • ABS Anti-lock Braking System
  • ESC Electronic Stability Control
  • HPCU Hybrid Power Control Unit
  • BMS Battery Management System
  • MCU Motor Control Unit
  • FIG. 2 is a configuration diagram of a system for evaluation of interworking between electronic devices based on CAN communication according to another embodiment of the present invention.
  • the interworking evaluation system for automotive electronics shown in FIG. 2 may be called a “simulator interworking mode”.
  • a system for evaluating interworking among automotive electronics based on CAN communication includes a terminal device 100, a CAN device 300, and a first CAN interworking device 500. Include.
  • the terminal device 100, the CAN device 300, and the first CAN interworking device 500 may be connected to the terminal device 100, the CAN device 300, and the first CAN interworking device 500 illustrated in FIG. 1. Since it is the same, a detailed description is omitted.
  • the interworking evaluation system illustrated in FIG. 2 is different from the first CAN interworking apparatus when another CAN interworking apparatus necessary for the evaluation of the first CAN interworking apparatus 500 is not prepared.
  • Development productivity can be improved by using a simulator 900 that is a virtual device that can process (receive / interpret / transmit) CAN messages or CAN signals transmitted from the 500).
  • the simulator 900 may be provided by the test tool of the present invention that can be installed and executed in the terminal device 100.
  • An example of such a simulator 900 is shown in FIG. 3.
  • the simulator 900 illustrated in FIG. 3 is a cluster simulator and may display an intuitive image to a user by shaping a CAN message or a CAN signal transmitted by the first CAN interworking device 500.
  • the user may transmit a CAN message or a CAN signal to the first CAN interworking device 500 through the simulator 900.
  • test tool of the present invention provides a simulator 900, even if there is no actual vehicle or other CAN interworking device, it is possible to evaluate the interworking of the first CAN interlocking device 500, so that independent development progress and quality stabilization are possible for each CAN interlocking device. There is an advantage.
  • the simulator 900 may be a simulator capable of artificially generating an air conditioner operation signal, an operation system (wheel remote controller, etc.) operation signal and other vehicle signals (gear operation, parking brake, etc.).
  • the simulator 900 may need to be customized because the CAN message or the CAN signal used when the vehicle to be evaluated is changed.
  • the simulator 900 can be customized by the user according to the purpose through the configuration file of the XML format. Customizing such as changing a value of a signal displayed in the simulator 900 or changing a label of an operation button of the simulator can be performed without changing the implementation of the simulator 900, thereby increasing the expandability of the test tool.
  • the test tool of the present invention which can be installed and executed in the terminal device 100 illustrated in FIGS. 1 and 2, includes various functions (interactive evaluation function, batch evaluation function, history) to be described later.
  • Based evaluation function can provide a user with an efficient evaluation of the accuracy and performance of a plurality of automotive electronics that interoperate with each other based on CAN communication.
  • test tool of the present invention includes a method for test evaluation of unit CAN signal generation (interaction based evaluation function), a method for increasing coverage of unit CAN signal test (batch evaluation function), and sequence Comparing the CAN signal sets with sig- nals, the method for test evaluation of errors due to sequential relationships and parallax intervals (history-based evaluation function) is complementary.
  • the test tool of the present invention executes a test case stored in a database of the terminal device 100 or a database of the test tool itself, and guides the test procedure defined in the test case through the terminal device 100. And, through the CAN device 300, as shown in Figure 4, receives a 'real-time CAN signal' from the first CAN interworking device 500, interprets the received real-time CAN signal to generate CAN data, and generate The configured CAN data can be compared with the preset expected value. And, the comparison result can be automatically output.
  • test tool 10 of the present invention provides information of a pre-stored test case, a 'user notification' window for guiding a test procedure to a user, and generates a preset expected value of CAN data.
  • the comparison result that is automatically output may be visually represented as a predetermined image through the simulator 900 illustrated in FIG. 4. Accordingly, the user may intuitively check the real-time CAN signal received from the first CAN interworking device 500 based on the image formed in the simulator 900.
  • the user uses the test tool of the present invention to perform various actual use scenarios of the first CAN interworking device 500 according to the guidance provided by the test tool, and according to the performance of the user, the first CAN interworking device 500 Real-time CAN signal transmitted from the advantage that can be directly monitored through the test tool of the present invention.
  • the test tool of the present invention executes an engineering mode pre-installed in the first CAN interworking device 500 and through the CAN device 300, as shown in FIG. 6, the first CAN interlocking device ( 500) receive 'real-time CAN signal' and 'system log', interpret the received real-time CAN signal to generate CAN data, interpret the received system log to generate system log data, and generate the You can compare the system log data and automatically output the comparison result.
  • the system log means that the first CAN interworking device 500 defines information about a message to be sent to the CAN data bus when the CAN signal is generated in a predetermined manner.
  • the Android Debug Bridge ADB
  • the test tool of the present invention can interpret the system log through ADB analysis.
  • FIG. 7 An example of a comparison result that is automatically output is shown in FIG. 7.
  • the test tool 10 of the present invention opens a 'user notification' window for guiding the user to execute the engineering mode of the first CAN interworking device 500 with information of a pre-stored test case.
  • the engineering mode By performing the engineering mode, a process of comparing the real-time CAN signal received from the first CAN interworking device 500 with the system log data generated by analyzing the system log may be output.
  • the comparison result that is automatically output may be visually represented as a predetermined image through the simulator 900 illustrated in FIG. 6.
  • test tool of the present invention there is an advantage that can automatically determine whether the desired CAN signal is generated in the first CAN interworking device 500 by comparing the system log and the real-time CAN signal monitoring results in real time. .
  • the test tool of the present invention receives a 'real time CAN signal' and a 'CAN signal log' from the first CAN interworking device 500 and interprets the received real-time CAN signal and the CAN signal log. You can generate real-time CAN signal data and CAN signal log data, compare the generated real-time CAN signal data with CAN signal log data, and automatically output the comparison result.
  • the 'CAN signal log' is information recorded in the first CAN interlocking device 500 or the second CAN interlocking device 700 while actually operating the first CAN interlocking device 500 according to a predetermined scenario
  • the 'real-time CAN' The signal ' is a CAN signal transmitted in real time from the first CAN interworking device 500 when the first CAN interworking device 500 is re-operated according to the predetermined scenario.
  • the comparison result that is automatically output may be output from the test tool 10 of the present invention, as shown in FIG. 5 or FIG. 7, and the comparison result that is automatically output is determined through the simulator 900 illustrated in FIG. 6. It can be visually represented as an image of.
  • the user has an advantage of checking in advance a potential error that may occur in a specific partial order between CAN signals or a specific time difference between the CAN signals.
  • the first CAN interlock device 500 is an AVN
  • the second CAN interlock device is a cluster 700 mounted inside an actual vehicle shown in FIG. 1 or the cluster simulator 900 shown in FIG. 2.
  • the cluster 700 or the cluster simulator 900 may effectively process it and verify that useful information is delivered to the user.
  • the real-time CAN signal generated when the first CAN interworking device 500 is re-operated according to a predetermined scenario is initially recorded in actual operation according to the predetermined scenario. May not exactly match the CAN signal log. This may occur in that some CAN messages may be repeated or omitted depending on a sampling period and a CAN message generation method for sampling to generate a real-time CAN signal in the first CAN interworking device 500.
  • the purpose of history-based evaluation is to accurately match the real-time CAN signal and the CAN signal log 1: 1, the 'recorded CAN signal sequence' recorded in the CAN signal log and the 'real time' of the real-time CAN signal. It is desirable to determine whether the CAN signal sequence 'is matched using a certain heuristic. Determination of a match will be described in detail with reference to FIG. 9.
  • the overlapping real-time CAN signal is ignored in consideration of the sampling period used when generating the real-time CAN signal, and the comparison is performed based on a change in the detected real-time CAN signal.
  • the real-time CAN signal is received (901)
  • the received real-time CAN signal cannot be the same as the recorded CAN signal, so it is determined as' failure 'and the received real-time CAN signal is determined as' the next recorded CAN signal. (905). If the received real-time CAN signal is the same as the next recorded CAN signal, it is determined as 'success' and reports the missing CAN signal that the value that should have occurred before the received real-time CAN signal is missing (906). If the received real-time CAN signal is not the same as the next recorded CAN signal, it is determined as a 'comparison failure', and the comparison is stopped after reporting (907).
  • step 904 After a successful comparison of the real-time CAN signal with the recorded CAN signal in step 904 or reporting a missing CAN signal in step 906, all real-time CAN signals transmitted by the first CAN interworking device 500 are transmitted. A comparison is made with the recorded CAN signal to determine whether all comparisons have been completed (908), and if all comparisons have been completed and no intermediate (907) step occurs, the entire comparison has been determined to be successful (909), and all comparisons have been made. If not complete, repeat steps 901 to 906.
  • the test tool of the present invention may be implemented through a computer readable recording medium including program instructions for performing computer-implemented operations.
  • the computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination.
  • the recording medium may be one specially designed and configured for the embodiment or be known and available to those skilled in computer software.
  • Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical recording media such as CD-ROMs, DVDs, magnetic-optical media such as floppy disks, and ROM, RAM, flash memory, and the like.
  • Hardware devices specifically configured to store and execute program instructions are included. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

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Abstract

La présente invention concerne un procédé pour un test d'évaluation d'interface entre des composants électroniques d'automobile, et, plus particulièrement, un procédé pour tester un outil du test d'évaluation d'interface entre des composants électroniques d'automobile sur la base d'une communication CAN. Un procédé selon un mode de réalisation de la présente invention est un procédé pour un test d'évaluation d'interface entre des composants électroniques d'automobile d'un outil de test apte à être installé et exécuté dans un dispositif de terminal, dans un test d'évaluation d'interface entre des composants électroniques d'automobile comprenant : un dispositif de terminal ; un dispositif de CAN pour transmettre un message de CAN ou un signal de CAN reçu à partir d'un bus de données de CAN au dispositif de terminal et transmettre un message de CAN ou un signal de CAN reçu à partir du dispositif de terminal au bus de données de CAN ; et au moins un dispositif d'interface de CAN connecté au dispositif de CAN et au bus de données de CAN, le procédé consistant à : exécuter un cas de test pré-stocké dans une base de données du dispositif de terminal ou une base de données de l'outil de test lui-même pour guider une procédure de test définie dans le cas de test ; recevoir un signal de CAN en temps réel à partir du dispositif d'interfonctionnement de CAN et interpréter le signal de CAN en temps réel reçu pour générer les données de CAN ; et comparer les données de CAN générées à une valeur attendue prédéterminée et délivrer automatiquement un résultat de comparaison.
PCT/KR2017/002260 2016-04-14 2017-03-02 Procédé pour un test d'évaluation d'interface entre des composants électroniques d'automobile WO2017179817A1 (fr)

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