JP4400209B2 - In-vehicle electrical component test system and test method - Google Patents

Description

  The present invention relates to an in-vehicle electrical component testing system for testing the operation of various in-vehicle electrical components that are controlled by a plurality of control devices connected to a LAN bus as a node of an in-vehicle LAN. Regarding the method.

  Various on-vehicle electrical components mounted on vehicles are increasingly electrically controlled by a controller called ECU (Electronic Control Unit) according to the state of the vehicle detected by various sensors. Further, in recent years, a plurality of controllers are connected by a bus to construct an in-vehicle LAN, and data communication using the in-vehicle LAN is performed between the plurality of controllers, thereby operating a plurality of in-vehicle electrical components in cooperation with each other. Has also been done.

  By the way, in providing such in-vehicle electrical components to the market, it is necessary to test whether or not each in-vehicle electrical component operates reliably in a state where it is actually mounted on the vehicle. In this case, it is important not only to check the operation of each in-vehicle electrical component individually, but also to check whether or not the cooperative operation between the plurality of in-vehicle electrical components is normally performed.

  Such tests for in-vehicle electrical components have been conventionally performed by a method of actually operating the in-vehicle electrical components using a controller and monitoring the state thereof. According to the simulation used, it has become possible to carry out the method by evaluating an electronic controller model.

  As a method for testing the cooperative operation between a plurality of in-vehicle electrical components by simulation using a computer as described above, a plurality of electronic controller models are connected to a single LAN bus. A method is known in which each model is evaluated by simulating data communication between a plurality of models via the network (see, for example, Non-Patent Document 1).

Non-Patent Document 1 gives an example of an in-vehicle electrical system that “the engine speed display changes when the switch is turned on”, and connects three controller models constituting the in-vehicle electrical system via a LAN bus. A test system has been described that simulates data communication over a LAN bus between two models.
“CANoe CAN.LIN.MOST Manual Version 4.0”, Vector Japan Co., Ltd., October 16, 2002, p. 3

  However, in the conventional test system that tests the cooperative operation between a plurality of in-vehicle electrical components by simulation using a computer, including the test system described in Non-Patent Document 1 described above, a model of a plurality of controllers is used for one system. Due to the configuration connected via the LAN bus, data communication other than in-vehicle LAN, such as signal transmission / reception via a wire harness, cannot be evaluated properly, and simulation that accurately simulates the entire vehicle cannot be performed. There is.

  That is, in an actual vehicle in which an in-vehicle LAN is constructed, data communication between a plurality of controllers is performed via a LAN bus, but detection signals are input from various sensors to each controller, and from each controller to an actuator. In many cases, a wire harness is used for the output of the control signal, and the simulation of data communication using one communication line does not accurately simulate the entire vehicle. In addition, although it is technically possible to simultaneously perform data communication via the LAN bus and transmission / reception of signals via the wire harness using a single LAN bus, this is actually performed using two communication lines. If the process is simulated with such a single communication line, a valid evaluation cannot be performed, and a satisfactory test cannot always be performed.

  The present invention was devised in view of the conventional situation as described above, and is capable of accurately testing the operation of various in-vehicle electrical components by performing a simulation that accurately simulates the entire vehicle. An object is to provide an electrical equipment test system and a test method.

  In testing the operation of various in-vehicle electrical components that are controlled by a plurality of control devices connected to a LAN bus as nodes in a vehicle LAN, the present invention provides a plurality of evaluation target models, vehicle models, and user interfaces. The above-described problems are solved by using the communication line.

  The plurality of evaluation target models are models imitating a plurality of control devices that perform operation control of various in-vehicle electrical components. The vehicle model simulates vehicle motion and transmits a signal representing the state of the vehicle to each model to be evaluated, and corresponds to various sensors mounted on the vehicle. In addition, the user interface is for performing operation input for operation tests and confirmation of control contents by each evaluation target model, and for operating various operation switches provided in the vehicle and various in-vehicle electrical components. This corresponds to the actuator.

  The first communication line of the two systems of communication lines is a communication line simulating a LAN bus, and a plurality of evaluation target models are connected to each other by the first communication line. In addition, the second communication line of the two systems of communication lines is a communication line imitating a wire harness, and the vehicle model, the user interface, and the plurality of evaluation target models are connected by the second communication line. The

  According to the present invention, the data communication performed via the LAN bus in an actual vehicle and the signal transmission / reception performed using the wire harness are faithful to the communication environment in the actual vehicle using two communication lines. Therefore, it is possible to perform an accurate operation test of various in-vehicle electrical components mounted on the vehicle.

  Hereinafter, specific embodiments of an in-vehicle electrical component testing system according to the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 shows a configuration example of an in-vehicle electrical component test system to which the present invention is applied. The in-vehicle electrical component testing system shown in FIG. 1 tests a cooperative operation between a plurality of in-vehicle electrical components mounted on a vehicle by simulation using a computer, and is connected to a LAN bus as a node of an in-vehicle LAN. And a plurality of evaluation target models M1, M2, M3... Mn simulating a plurality of controllers for controlling the operation of various on-vehicle electrical components.

  The plurality of models to be evaluated M1, M2, M3,... Mn simulate the functions of a plurality of controllers for controlling the operation of various on-vehicle electrical components on a computer, and each has independent hardware (for example, a personal computer). ). The plurality of evaluation object models M1, M2, M3... Mn (hereinafter, when not particularly distinguished from each other, generically referred to as evaluation object model M) is a first corresponding to the LAN bus of the in-vehicle LAN. The communication lines 1 are connected to each other, and data communication between the evaluation target models M can be performed via the first communication line 1. The data communication between the evaluation target models M via the first communication line 1 corresponds to the data communication between the controllers that is performed via the in-vehicle LAN in an actual vehicle.

  Each evaluation object model M includes a control model unit 11 and a communication model unit 12 that execute processing similar to the control content by the corresponding controller. The communication model unit 12 performs control for performing data communication via the first communication line 1 in which the evaluation target model M imitates the LAN bus of the in-vehicle LAN. That is, when data is sent from the control model unit 11, the communication model unit 12 converts the data into a format that matches the protocol of the in-vehicle LAN, and transmits another model to be evaluated via the first communication line 1. Send to M. Further, when data is sent from another evaluation target model M via the first communication line 1, the communication model unit 12 converts this data into a data format that can be handled by the control model unit 11, and the control model unit 11 is transmitted.

  In addition, the in-vehicle electrical component test system to which the present invention is applied includes a vehicle model 3 and a measuring machine (user interface) 4 in addition to each evaluation target model M. The vehicle model 3 and the measuring machine 4 are connected to each evaluation object model M via a second communication line 2 corresponding to a vehicle wire harness.

  The vehicle model 3 performs simulation of vehicle motion and transmits various signals representing the state of the vehicle to each evaluation target model M, and corresponds to various sensors installed in the vehicle. Therefore, a signal transmitted from the vehicle model 3 to each evaluation target model M via the second communication line 2 corresponds to a sensor signal transmitted from various sensors to each controller via a wire harness in an actual vehicle. To do.

  The measuring machine 4 is a user interface for a user to input an operation for an operation test or to confirm control contents by each evaluation target model M, and various operation switches provided on the vehicle. This corresponds to an actuator for operating various types of vehicle-mounted electrical components. Therefore, a signal transmitted from the measuring machine 4 to each evaluation target model M via the second communication line 2 is a control command sent to each controller from various operation switches via a wire harness in an actual vehicle. It corresponds to. In addition, a signal transmitted from each evaluation target model M to the measuring machine 4 via the second communication line 2 corresponds to an operation control signal transmitted from each controller to various actuators via a wire harness in an actual vehicle. To do.

  Here, the operation of the in-vehicle electrical component test system to which the present invention configured as described above is applied will be described in detail with reference to FIG. . In this example, the evaluation target model M1 is a model simulating a controller that reads a headlamp switch ON signal, and the evaluation target model M2 is a model simulating a controller for driving an actuator that actually turns on the headlamp. It is.

  First, when the user performs an operation input corresponding to the headlamp switch ON using the measurement machine 4, the measurement machine 4 outputs a headlamp switch ON signal (arrow 1 in FIG. 2). At this time, the control model unit 11 of the evaluation target model M1 is in a state of waiting for a control command via the second communication line 2 simulating a vehicle wire harness, and from the measuring machine 4 via the second communication line 2. When the headlamp switch ON signal is sent, this is received (arrow 2 in FIG. 2).

  In addition, during the test by the in-vehicle electrical component test system, the vehicle model 3 simulates the vehicle motion as necessary, and the signal representing the vehicle state is transmitted to the second communication that imitates the vehicle wire harness. It transmits to each evaluation object model M via the line 2 at any time.

  When receiving the headlamp switch ON signal from the measuring machine 4, the control model unit 11 of the evaluation target model M1 determines that there is an instruction to turn on the headlamp, and generates a headlamp request signal. Then, the generated headlamp request signal is transmitted to the communication model unit 12 (arrow 3 in FIG. 2).

  When the communication model unit 12 of the evaluation target model M1 receives the headlamp request signal from the control model unit 11, the communication model unit 12 converts the headlamp request signal into a data format that matches the protocol of the in-vehicle LAN. Then, the converted data is transmitted via the first communication line 1 simulating the LAN bus of the in-vehicle LAN. At this time, the communication model 12 of the evaluation target model M2 is in a state of waiting for data via the first communication line 1, and when data is sent from the evaluation target model M1 via the first communication line 1, This is received (arrow 4 in FIG. 2).

  When the communication model unit 12 of the evaluation target model M2 receives the data transmitted from the evaluation target model M1 via the first communication line 1, the communication model unit 12 converts the received data into a data format that can be handled by the control model unit 11. Then, the converted data is transmitted to the control model unit 11 (arrow 5 in FIG. 2).

  When receiving the data from the communication model unit 12, the control model unit 11 of the evaluation target model M2 determines that there is an instruction to turn on the headlamp, and generates a drive control signal for the actuator that turns on the headlamp. Then, the generated actuator drive control signal is transmitted to the measurement machine 4 via the second communication line 2 (arrow 6 in FIG. 2).

  When the measurement machine 4 receives the actuator drive control signal transmitted from the control model unit 11 of the evaluation target model M2 via the second communication line 2, for example, the measurement machine 4 graphically displays a state in which the headlamp is lit. Thus, the user is notified that the data communication between the evaluation target models M1 and M2 and the data communication between the evaluation target models M1 and M2 and the measurement machine 4 and the vehicle model 5 are normally performed. . Thereby, the user can confirm that the headlamp lighting function operates normally in an actual vehicle.

  As described above, in the in-vehicle electrical component test system to which the present invention is applied, a plurality of evaluation target models M1, M2, M3,. Connected by the first communication line 1 and performs data communication between the respective evaluation target models M via the first communication line 1, and a vehicle model 3 corresponding to various sensors installed in the vehicle, a vehicle A measurement machine (user interface) 4 corresponding to various operation switches and actuators provided on the vehicle and each evaluation target model M are connected by a second communication line 2 simulating a vehicle wire harness, and these vehicle models are connected. 3 and each evaluation object model M, and the data communication between the measuring machine 4 and each evaluation object model M is performed via the second communication line 2, so that the actual vehicle These data communications faithfully reproducing communication environment the communication environment can be accurately simulate that, it is possible to implement the correct operation test of various in-vehicle electric equipment mounted on a vehicle.

  Further, by dividing the signal transmitted and received in the system for each communication system, it is possible to improve the efficiency of simulation operation and to reduce the communication load on each communication line.

(Second Embodiment)
The present embodiment is characterized in that the basic configuration is the same as that of the first embodiment described above, and a clock server 5 is provided in the system as shown in FIG. Hereinafter, the same reference numerals are used for the same parts as those in the first embodiment, and detailed description thereof is omitted, and only the characteristic parts of the present embodiment will be described.

  The clock server 5 performs synchronization processing among a plurality of evaluation target models M1, M2, M3... Mn, and is connected to each evaluation target model M via the second communication line 2. . Then, the clock server 5 transmits a synchronous clock to each evaluation object model M via the second communication line 2 so that processing in each evaluation object model M is performed with reference to this synchronization clock. As a result, synchronization between the models to be evaluated M is realized.

  That is, in the test system of the present embodiment, when the simulation environment is started and the hardware for realizing each evaluation target model M is started and the communication environment is prepared, first, as shown in the time chart of FIG. A synchronous clock is transmitted to each evaluation target model M (1 in FIG. 4). When each evaluation target model M receives the synchronous clock from the clock server 5, it executes the processing for the clock interval based on this (2 in FIG. 4). Each evaluation target model M transmits a completion notification to the clock server 5 at the stage when the processing for the clock interval is completed (3 in FIG. 4).

  When the clock server 5 receives completion notifications from all the models to be evaluated M, the clock server 5 proceeds to the next cycle and generates the next synchronous clock. Then, the next synchronization clock is received by each evaluation target model M, and processing for the next clock interval is executed by each evaluation target model M. In the test system of the present embodiment, a simulation that is synchronized between the evaluation target models M is realized by repeating the above processing.

  As described above, according to the in-vehicle electrical component test system of the present embodiment, the clock server 5 is provided in the system and each evaluation target model M does not operate independently, but between the evaluation target models M. Since the synchronized simulation is performed, it is possible to appropriately perform a detailed simulation more suitable for an actual vehicle.

(Third embodiment)
This embodiment is characterized in that the basic configuration is the same as that of the first embodiment described above, and a relay server 6 is provided in the system as shown in FIG. Hereinafter, the same reference numerals are used for the same parts as those in the first embodiment, and detailed description thereof is omitted, and only the characteristic parts of the present embodiment will be described.

  The relay server 6 relays data communication among a plurality of models to be evaluated M1, M2, M3... Mn, which is performed via the second communication line 2 simulating a wire harness, using the shared data area. It is connected to each evaluation object model M via the second communication line 2. The shared data area is an area for temporarily storing data transmitted / received between the evaluation target models M via the second communication line 2 and is typically set in the relay server 6. It may be provided outside the relay server 6.

  In the first embodiment described above, it is assumed that data communication between a plurality of models to be evaluated M1, M2, M3... Mn is performed via the first communication line 1 simulating a LAN bus. In an actual vehicle, it is also assumed that data communication between controllers is partially performed via a wire harness. Therefore, in the present embodiment, in order to cope with this, data communication between the evaluation target models M is enabled via the second communication line 2 simulating a wire harness. In this case, since there is a concern that data communication via the second communication line 2 becomes difficult due to a difference in data format transmitted / received between the evaluation target models M, the second between each evaluation target model M is concerned. Such a problem is solved by relaying data communication via the communication line 2 by the relay server 6.

  In the test system of the present embodiment, for example, when data processed by the evaluation target model M1 is transmitted to the evaluation target model M2 via the second communication line 2, the processing is performed by the evaluation target model M1 as shown in FIG. The read data is read by the relay server 6 and once written in the shared data area (arrow 1 in FIG. 6). Then, the data temporarily stored in the shared data area is sent to the evaluation target model M2 by the relay server 6 (arrow 2 in FIG. 6).

  Conversely, when data processed by the evaluation target model M2 is transmitted to the evaluation target model M1 via the second communication line 2, the data processed by the evaluation target model M2 is read by the relay server 6, and once Are written in the shared data area (arrow 3 in FIG. 6). Then, the data temporarily stored in the shared data area is sent to the evaluation target model M1 by the relay server 6 (arrow 4 in FIG. 6).

  The relay processing by the relay server 6 as described above is performed based on a connection file in which various information for performing communication between the evaluation target models M is described. In this connection file, for example, as shown in FIG. 7, the model name of the evaluation target model on the transmission side of the data stored in the area, for each area where the data of the shared data area is stored, The model name of the evaluation target model on the data receiving side, the data name written to the area, the data name read from the area, and the type of data to be transmitted / received are described in association with the address of the area. ing.

  By referring to the connection file as described above, the relay server 6 can correspond to each evaluation target model M that performs data communication via the second communication line 2, the data type of data to be transmitted and received, and the sharing to be used. The area of the data area and the like can be uniquely specified, and data communication via the second communication line 2 between the evaluation target models M can be relayed very simply and appropriately. In addition, if data communication between each evaluation target model M is relayed based on the connection file as described above, even when a new model is added to the system, only information is added to the connection file. Can support adding models.

  As described above, according to the in-vehicle electrical component test system of the present embodiment, each evaluation object model M performed by the relay server 6 via the second communication line 2 simulating a wire harness using the shared data area. Since the data communication between them is relayed, the problem that it becomes difficult to transmit / receive data via the second communication line 2 between the evaluation target models M due to a difference in the format of the transmitted / received data, etc. The In addition, since data transmission / reception between the respective evaluation target models M via the second communication line 2 can be centrally managed by the connection file, it is necessary to individually process each evaluation target model M for connection. Connection management can be easily performed.

(Fourth embodiment)
This embodiment is characterized in that the basic configuration is the same as that of the first embodiment described above, and as shown in FIG. 8, a model data transmission / reception relay server 7 is provided in the system. Hereinafter, the same reference numerals are used for the same parts as those in the first embodiment, and detailed description thereof is omitted, and only the characteristic parts of the present embodiment will be described.

  The intra-model data communication relay server 7 relays data communication performed between the control model unit 11 and the communication model unit 12 of each evaluation target model M using the shared data area. The communication model 2 is connected to the control model unit 11 and the communication model unit 12 of each evaluation object model M via the communication line 2. The shared data area is an area for temporarily storing data transmitted / received between the control model unit 12 and the communication model unit 12 of each evaluation target model M, and is typically in the relay server 6. However, it may be provided outside the relay server 6.

  The connection between the control model unit 11 and the communication model unit 12 of each evaluation target model M is normally performed by constructing a driver library for each control model unit 11 and providing a transmission / reception queue in the driver. It is assumed that the control model unit 11 and the communication model unit 12 are directly connected. In this case, since data communication between the control model unit 11 and the communication model unit 12 largely depends on the communication model unit 12 side, if the processing in the control model unit 11 using different tools is to be realized, the control model When the unit 11 side needs to be processed into a state corresponding to the communication model unit 12, and when the interface model different from the general-purpose type is adopted as the communication model unit 12, the processing work on the control model unit 11 side The problem that is necessary arises. Therefore, in this embodiment, as schematically shown in FIG. 9, data communication between the control model unit 11 and the communication model unit 12 of each evaluation target model M is performed by the intra-model data communication relay server 7. This problem is solved by relaying.

  In the test system of the present embodiment, when data processed by the control model unit 11 of each evaluation target model M is transmitted to the communication control unit 12, processing is performed by the control model unit 11 of the evaluation target model M as shown in FIG. The data thus read is read by the intra-model data communication relay server 7 and once written in the shared data area (arrow 1 in FIG. 10). Then, the data temporarily stored in the shared data area is sent to the communication model unit 12 by the intra-model data communication relay server 7 (arrow 2 in FIG. 10).

  When the communication model unit 12 of the evaluation target model M transmits data received from another evaluation target model via the first communication line 1 to the control model unit 11, the communication model unit 12 uses the first communication line 1. The data received via is read by the intra-model data communication relay server 7 and once written in the shared data area (arrow 3 in FIG. 10). Then, the data temporarily stored in the shared data area is sent to the control model unit 11 by the intra-model data communication relay server 7 (arrow 4 in FIG. 10).

  In the relay processing by the intra-model data communication relay server 7 as described above, various types of information for performing communication between the control model unit 11 and the communication model unit 12 of each evaluation target model M are described. This is done based on the file. In this connection file, for example, as shown in FIG. 11, the name of the model part on the transmission side of the data stored in the area, the data reception, for each area where the data of the shared data area is stored. The name of the model part on the side, the data name written to the area, the data name read from the area, and the type of data to be transmitted / received are described in association with the address of the area.

  By referring to the connection file as described above, the intra-model data communication relay server 7 can determine the correspondence between the control model unit 11 and the communication model unit 12 of each evaluation target model M and the data type of data to be transmitted / received. The area of the shared data area to be used can be uniquely specified, and data communication between the control model unit 11 and the communication model unit 12 of each evaluation target model M is relayed extremely simply and appropriately. It becomes possible. If data communication between the control model unit 11 and the communication model unit 12 of each evaluation target model M is relayed based on the connection file as described above, a new model is added to the system. Even in this case, it is possible to support adding models by simply adding information to the connection file.

  Further, in the connection file as described above, the location of the control model unit 11 and the communication model unit 12 of each evaluation target model M, that is, which hardware of the control model unit 11 and the communication model unit 12 of each evaluation target model M is actually If information indicating whether it is realized on the hardware is also described, the control model unit 11 and the communication model unit 12 of each evaluation target model M can be realized on different hardware. Therefore, for example, as shown in FIG. 12 (a), the control model units 11 and the communication model units 12 of the evaluation target models M1 and M2 can be realized by the same personal computer, or in FIG. 12 (b). As shown, the control model unit 11 of the evaluation target model M1, the control model unit 11 of the evaluation target model M2, and the communication model units 12 of the evaluation target models M1 and M2 are realized by individual personal computers, respectively. An optimal simulation environment can be constructed in consideration of calculation load and speed.

  As described above, according to the in-vehicle electrical component test system of the present embodiment, the intra-model data communication relay server 7 uses the shared data area to control the control model unit 11 and the communication model unit 12 of each evaluation target model M. Since data communication performed between the control model unit 11 and the communication model unit 12 of each evaluation target model M is relayed to the communication model unit 12 in the form of an interface. It can be done without dependence. Therefore, in order to make the control model unit 11 conform to the interface format of the communication model unit 12, processing such as processing for connection to the control model unit 11 becomes unnecessary.

It is a system configuration figure showing the composition of the in-vehicle electrical equipment test system of a 1st embodiment. It is a figure explaining operation | movement of the said vehicle-mounted electrical equipment test system. It is a system block diagram which shows the structure of the vehicle-mounted electrical equipment test system of 2nd Embodiment. It is a time chart explaining the outline | summary of the synchronous process by a clock server. It is a system block diagram which shows the structure of the vehicle-mounted electrical equipment test system of 3rd Embodiment. It is a figure explaining the outline | summary of the relay process by a relay server. It is a figure which shows the outline | summary of the connection file used for the relay process in the said relay server. It is a system block diagram which shows the structure of the vehicle-mounted electrical equipment test system of 4th Embodiment. It is a figure which shows typically the connection state of the control model part and communication model part of the evaluation object model implement | achieved by introduction of the relay server for in-model data communication. It is a figure explaining the outline | summary of the relay process by the said relay server for data communication in a model. It is a figure which shows the outline | summary of the connection file used for the relay process in the said relay server for data communication in a model. It is a figure which shows the variation of distribution of the control model part of each evaluation object model with respect to hardware, and a communication model part, (a) is the control model part of evaluation object models M1 and M2, and the communication model part is respectively the same FIG. 7B is a diagram showing an example realized by a personal computer, and FIG. 5B is a diagram showing a control model unit of the evaluation target model M1, a control model unit of the evaluation target model M2, and communication model units of the evaluation target models M1 and M2, respectively. It is a figure which shows the example implement | achieved by.

Explanation of symbols

M1, M2, M3... Mn Evaluation target model 1 First communication line 2 Second communication line 3 Vehicle model 4 Measuring machine (user interface)
5 Clock server 6 Relay server 7 Relay server for data communication in model 11 Control model section 12 Communication model section

Claims (7)

An in-vehicle electrical component test system that tests the operation of various in-vehicle electrical components that are controlled by a plurality of control devices connected to a LAN bus as a node of an in-vehicle LAN (Local Area Network),
A plurality of evaluation target models simulating the plurality of control devices;
A vehicle model that simulates vehicle motion and transmits a signal representing the state of the vehicle to each of the models to be evaluated;
An operation input for an operation test and a user interface for confirming the control content by each evaluation object model,
Said plurality of evaluation target model with each other, together with the connected to the first communication line and a wire harness the LAN bus resembling each other in a second communication line imitating, the said vehicle model and the user interface more an evaluation target model of being connected with the second communication line,
Using the shared data area for temporarily storing data transmitted and received between the plurality of evaluation target models via the second communication line, the second communication line between the plurality of evaluation target models. A relay server that relays data communication via the second communication line is connected to the plurality of models to be evaluated via the second communication line . The relay server, based on a connection file in which information indicating a correspondence relationship between evaluation target models performing data communication via the second communication line and information on a shared data area to be used are described The in-vehicle electrical component test system according to claim 1, wherein data communication via the second communication line between the models to be evaluated is relayed. An in-vehicle electrical component test system that tests the operation of various in-vehicle electrical components that are controlled by a plurality of control devices connected to a LAN bus as a node of an in-vehicle LAN (Local Area Network),
A plurality of evaluation target models simulating the plurality of control devices;
A vehicle model that simulates vehicle motion and transmits a signal representing the state of the vehicle to each of the models to be evaluated;
An operation input for an operation test and a user interface for confirming the control content by each evaluation object model,
The plurality of evaluation target models are connected to each other by a first communication line that simulates the LAN bus, and the vehicle model, the user interface, and the plurality of evaluation target models simulate a wire harness. Connected by the second communication line
Each evaluation target model includes a control model unit that executes control of the control device, and a communication model unit that performs control for the evaluation target model to perform data communication via the first communication line. The control model unit and the communication model unit are connected via the second communication line,
Using a shared data area that temporarily stores data transmitted and received between the control model part and the communication model part of each evaluation object model, between the control model part and the communication model part of each evaluation object model A relay server for intra-model data communication that relays data communication in the vehicle is connected to the control model unit and the communication model unit via the second communication line. . The relay server for intra-model data communication is based on the connection file in which the information indicating the correspondence between the control model part and the communication model part of each evaluation target model and the information on the shared data area to be used is described. The in-vehicle electrical component test system according to claim 3, wherein data communication is relayed between the control model unit and the communication model unit. The in-vehicle electrical component testing system according to claim 1, further comprising a clock server that performs synchronization processing between the models to be evaluated. A test method for testing the operation of various in-vehicle electrical components whose operation is controlled by a plurality of control devices connected to a LAN bus as a node of an in-vehicle LAN (Local Area Network),
A plurality of models to be evaluated imitating the plurality of control devices are connected to each other by a first communication line imitating the LAN bus and a second communication line imitating a wire harness, and the first communication And performing data communication between the respective models to be evaluated via a line and the second communication line,
A vehicle model for simulating vehicle motion and transmitting a signal representing the state of the vehicle to each evaluation object model, and a user interface for confirming operation input for operation test and control content by each evaluation object model And the plurality of evaluation object models via the second communication line, and data communication between the vehicle model and the user interface and each evaluation object model via the second communication line. And
A relay server having a shared data area for temporarily storing data transmitted / received between the plurality of models to be evaluated via the second communication line is connected to the plurality of evaluation objects via the second communication line. A test method for in-vehicle electrical components, comprising: connecting to a model, and performing data communication via the second communication line between the plurality of models to be evaluated using the relay server. A test method for testing the operation of various in-vehicle electrical components whose operation is controlled by a plurality of control devices connected to a LAN bus as a node of an in-vehicle LAN (Local Area Network),
A plurality of evaluation target models simulating the plurality of control devices are connected to each other via a first communication line simulating the LAN bus, and the evaluation target models are connected via the first communication line. As well as data communication of
A vehicle model for simulating vehicle motion and transmitting a signal representing the state of the vehicle to each evaluation object model, and a user interface for confirming operation input for operation test and control content by each evaluation object model And the plurality of models to be evaluated are connected by a second communication line simulating a wire harness, and the vehicle model, the user interface, and each model to be evaluated are connected via the second communication line. Data communication with
Each evaluation object model is composed of a control model unit that executes control of the control device, and a communication model unit that performs control for the evaluation object model to perform data communication via the first communication line. Then, the control model unit and the communication model unit are connected via the second communication line,
A relay server for intra-model data communication having a shared data area for temporarily storing data transmitted and received between the control model unit and the communication model unit of each evaluation target model via the second communication line The second communication line is connected to the control model unit and the communication model unit, and the second communication line between the control model unit and the communication model unit of each evaluation target model using the intra-model data communication relay server. A test method for in-vehicle electrical components characterized by performing data communication via

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