WO2014174778A1

WO2014174778A1 - Vehicular diagnostic system, server, and computer program

Info

Publication number: WO2014174778A1
Application number: PCT/JP2014/001957
Authority: WO
Inventors: 弘晃森本; 正和山田; 村松　直樹
Original assignee: 株式会社デンソー
Priority date: 2013-04-22
Filing date: 2014-04-03
Publication date: 2014-10-30
Also published as: JP2014215052A; EP2990774A1; EP2990774A4; JP6008130B2

Abstract

Provided is a vehicular diagnostic system (1) provided with the following: a communication terminal (4, 22) that transmits, to a server (2), vehicle information acquired from a vehicle (9); and said server (2), which performs a diagnostic on the vehicle (9) by analyzing the vehicle information received from the communication terminal (4, 22). The server (2) is provided with an acquisition-category notification unit (61) that notifies the communication terminal (4, 22) of categories of vehicle information that are needed for the diagnostic and should be acquired from the vehicle (9). The communication terminal (4, 22) acquires vehicle information from the vehicle (9) in accordance with the vehicle-information categories of which the server (2) notified the communication terminal (4, 22) and transmits the acquired vehicle information to the server (2) in real-time.

Description

Vehicle diagnostic system, server and computer program

Cross-reference of related applications

This application is based on Japanese Patent Application No. 2013-89664 filed on Apr. 22, 2013, the contents of which are incorporated herein by reference.

The present disclosure relates to a vehicle diagnosis system, a server, and a computer program including a communication terminal that transmits vehicle information acquired from a vehicle to a server, and a server that analyzes vehicle information received from the communication terminal and diagnoses the vehicle. .

As a vehicle diagnosis system in which a server and a communication terminal cooperate to diagnose a vehicle, the server transmits instructions to a worker (for example, a mechanic) who performs vehicle diagnosis to the communication terminal, and communicates instructions to the worker. The structure which a terminal displays is disclosed (for example, refer to patent documents 1 and patent documents 2).

The inventor of the present application has found the following regarding the vehicle diagnosis system. Conventionally, in a vehicle diagnosis system in which a server and a communication terminal cooperate to diagnose a vehicle, the operator operates the communication terminal to set and input items of vehicle information necessary for diagnosis to be acquired from the vehicle; It has become. However, in such a configuration, there is a possibility that an operation for setting and inputting the item of the vehicle information becomes a burden on the operator. Conventionally, since the communication terminal is configured to temporarily store the vehicle information acquired from the vehicle, it takes time until the server acquires the vehicle information, and there is a possibility that the diagnosis result cannot be obtained quickly. .

Japanese Patent Publication No. 10-197285 Japanese Patent Publication No. 2003-132168

The present disclosure has been made in view of the above, and an object of the present disclosure is to provide a vehicle diagnosis system, a server, and a server that can quickly obtain a diagnosis result while reducing the burden on an operator who performs vehicle diagnosis. To provide a computer program.

A vehicle diagnosis system according to a first example of the present disclosure includes a communication terminal that transmits vehicle information acquired from a vehicle to a server, and a server that analyzes vehicle information received from the communication terminal and diagnoses the vehicle. . The server includes an acquisition item notification unit that notifies the communication terminal of items of vehicle information necessary for diagnosis to be acquired from a vehicle. The said communication terminal acquires vehicle information from a vehicle according to the item of the vehicle information notified from the said server, and transmits the acquired vehicle information to the said server in real time.

According to a second example of the present disclosure, in a server that configures a vehicle diagnosis system together with a communication terminal that transmits vehicle information acquired from a vehicle to a server, analyzes the vehicle information received from the communication terminal, and diagnoses the vehicle, A server is provided that includes an acquisition item notification unit that notifies the communication terminal of items of vehicle information necessary for diagnosis that should be acquired from a vehicle.

According to the third example of the present disclosure, a vehicle diagnosis system is configured with a communication terminal that transmits vehicle information acquired from a vehicle to a server, and the vehicle information received from the communication terminal is analyzed to provide a server for diagnosis. There is provided a computer program for causing a computer to execute a procedure for notifying an item of vehicle information necessary for diagnosis to be acquired from a vehicle to the communication terminal.

According to such a vehicle diagnostic system, server, and computer program, the communication terminal transmits vehicle information acquired from the vehicle to the server. The server diagnoses the vehicle by analyzing the vehicle information received from the communication terminal. In the server, the acquisition item notification unit notifies the communication terminal of items of vehicle information necessary for diagnosis to be acquired from the vehicle. The communication terminal acquires vehicle information from the vehicle according to the item of vehicle information notified from the server, and transmits the acquired vehicle information to the server in real time. As a result, it is possible to reduce the burden on the operator who diagnoses the vehicle, and to obtain the diagnosis result promptly.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings.
FIG. 1 is an overall configuration diagram illustrating a first embodiment of the present disclosure. FIG. 2 is a functional block diagram showing the configuration of the server. FIG. 3 is a functional block diagram showing the configuration of the diagnostic AP server. FIG. 4 is a functional block diagram showing configurations of the vehicle and the communication terminal. FIG. 5 is a first diagram showing the flow of processing. FIG. 6 is a second diagram showing the flow of processing, FIG. 7 is a third diagram showing the flow of processing. FIG. 8 is a diagram showing the transition of the engine speed, the transition of the screen, and the vehicle information acquired from the vehicle. FIG. 9 is a first diagram showing a main menu screen. FIG. 10 is a second diagram showing the main menu screen. FIG. 11 is a diagram showing a vehicle selection screen. FIG. 12 is a diagram showing a diagnosis start screen, FIG. 13 is a diagram showing a warm-up instruction screen. FIG. 14 is a diagram showing a first operation instruction screen. FIG. 15 is a first diagram showing a second operation instruction screen, FIG. 16 is a second diagram showing a second operation instruction screen. FIG. 17 is a diagram showing a third operation instruction screen. FIG. 18 is a first diagram showing a diagnosis result screen, FIG. 19 is a second diagram showing a diagnosis result screen. FIG. 20 is a diagram showing a sheet on which a diagnostic result is printed out. FIG. 21A is a first diagram showing a relationship between sampling rate and items that can be diagnosed; FIG. 21B is a second diagram showing the relationship between the sampling rate and the items that can be diagnosed; FIG. 21C is a third diagram showing the relationship between the sampling rate and items that can be diagnosed. FIG. 22 is a diagram showing the upper and lower limits of the reference value, FIG. 23 is an overall configuration diagram illustrating a second embodiment of the present disclosure.

(First embodiment)
Hereinafter, a first embodiment of the present disclosure will be described with reference to FIGS. 1 to 22. As shown in FIG. 1, the vehicle diagnosis system 1 includes a server 2, a machine-to-machine (M2M) server 3, and a communication terminal 4, each of which is configured to be connectable via the Internet 5. Yes.

The server 2 has a diagnostic application (diagnostic AP) server 6, a diagnostic database (diagnostic DB) server 7, and a communication application (communication AP) server 8 for each function. The diagnosis DB server 7 stores diagnosis information necessary for vehicle diagnosis. The diagnosis AP server 6 reads the diagnosis information stored in the diagnosis DB server 7, and diagnoses the vehicle using the read diagnosis information. The communication AP server 8 controls data communication between the server 2 and the M2M server 3.

As shown in FIG. 2, the diagnostic AP server 6 includes a control circuit 6a (corresponding to a computer), a vehicle information input / output unit 6b, a diagnostic information input / output unit 6c, a storage unit (MEM) 6d, and a WEB screen storage. A unit 6e and a communication control circuit (COM CNTL) 6f. The control circuit 6a includes a microcomputer having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The control circuit 6a controls the overall operation of the diagnostic AP server 6 by the CPU executing a computer program stored in the ROM.

The vehicle information input / output unit 6b inputs basic vehicle information and vehicle information (diagnosis and data described later) received by the communication AP server 8 from the communication terminal 4 via the M2M server 3, and the input basic vehicle information. And vehicle information is output to the control circuit 6a. The diagnostic information input / output unit 6c inputs diagnostic information stored in the diagnostic DB server 7, and outputs the input diagnostic information to the control circuit 6a. The storage unit 6d stores various types of data necessary for the control circuit 6a to execute various types of data processing. As one of the stored data, screen original data serving as material data for a WEB screen is stored. I remember it.

The control circuit 6a reads the screen source data stored in the storage unit 6d, constructs the read screen source data to create a WEB screen, and stores the created WEB screen in the WEB screen storage unit 6e. The WEB screen here refers to a screen that can be published on the Internet using the WWW (World Wide Web) system. Text data, HTML (Hyper Text Markup Language) layout information, and images embedded in the document , A screen composed of audio, video, and the like.

As shown in FIG. 3, the control circuit 6a has an acquisition item notification unit (ITEM NOTF) 61, an acquisition item determination unit (ITEM DETN) 62, a diagnosis acquisition unit (DIAG OBTAIN) 63, and a diagnosis for each function. Avoidance unit (DIAG AVOID) 64, data acquisition unit (DATA OBTN) 65, diagnosis result determination unit (RESUT DETN) 66, reference value determination unit (STAND DETN) 67, diagnosis enable / disable condition determination unit (DIAG COND DETN) ) 68, a diagnosis possible condition notification unit (DIAG COND NOTF) 69, a drive mechanism temperature acquisition unit (DRIVE TEMP OBTAIN) 70, a warm-up necessity determination unit (WARM DETN) 71, and a warm-up necessary notification unit (WARM) NOTTF) 72 and a data reacquisition necessity determination unit (DATA RE) Has a BTN DETN) 73, data reacquisition required notification unit and (DATA REOBTN NOTIF) 74, a sampling speed determination unit and (SAMPL DETN) 75, and an operator operation determination unit (OPRN DETN) 76.

The above-mentioned “unit (or means)” focuses on the function of the control circuit 6a and is classified for convenience in the inside of the control circuit 6a. The inside of the control circuit 6a is assigned to each “unit”. It does not mean that it is physically divided into corresponding parts. Accordingly, each “unit” can be realized as software as a part of a computer program, or can be realized as hardware using an IC chip or a large-scale integrated circuit.

The acquisition item notification unit 61 notifies the communication terminal 4 of items of vehicle information necessary for diagnosis that should be acquired from the vehicle 9. The acquisition item determination unit 62 determines items of vehicle information necessary for diagnosis to be acquired from the vehicle 9. The diagnosis acquisition unit 63 acquires a diagnosis of the vehicle 9 as vehicle information. The diagnosis avoidance unit 64 avoids performing diagnosis based on vehicle information when acquiring a diagnosis to be diagnosed. The data acquisition unit 65 acquires data as vehicle information. The diagnosis result determination unit 66 determines the diagnosis result by comparing the data of the vehicle 9 with the reference value. The reference value determination unit 67 determines the reference value according to the contents of diagnosis, the change over time of the vehicle 9 to be diagnosed, or the vehicle information acquired and accumulated from the vehicle in the past.

The diagnosis availability condition determination unit 68 determines whether there is a diagnosis availability condition based on a sampling speed indicating a speed at which the communication terminal 4 acquires data from the vehicle 9. The diagnosable condition notification unit 69 notifies the communication terminal 4 of the diagnosable condition when it is determined that there is a diagnosability condition based on the sampling rate. The drive mechanism temperature acquisition unit 70 acquires the temperature of the engine (corresponding to the drive mechanism) of the vehicle 9. The warm-up necessity determination unit 71 determines whether the engine needs to be warmed up based on the engine temperature. The warm-up necessity notification unit 72 notifies the communication terminal 4 that warm-up is necessary when it is determined that warm-up of the engine is necessary.

The data reacquisition necessity determination unit 73 determines whether data reacquisition is necessary based on the sampling speed or whether the operator's operation is within a predetermined range (whether the operation is correct). The data reacquisition necessity notification unit 74 notifies the communication terminal 4 that data reacquisition is necessary when it is determined that data reacquisition is necessary. The sampling speed determination unit 75 determines a sampling speed indicating the speed at which the communication terminal 4 has acquired data from the vehicle 9. The worker operation determination unit 76 determines whether or not the operator's operation is within a predetermined range.

The communication control circuit 6 f controls data communication between the diagnostic AP server 6 and the communication terminal 4, transmits WEB screen data constituting the WEB screen to the communication terminal 4, or an operator operates the communication terminal 4. In response to this, an operation signal transmitted from the communication terminal 4 is received. The control circuit 6a inputs an operation signal transmitted from the communication terminal 4 via the communication control circuit 6f, or inputs vehicle information transmitted from the communication terminal 4 via the vehicle information input / output unit 6b. Then, the control circuit 6a selects the WEB screen to be provided to the worker from the WEB screen stored in the WEB screen storage unit 6e (the communication terminal 4 can be displayed via the Internet 5), and the selected Preparation for transmission of WEB screen data constituting the WEB screen is prepared. The server 2 providing the WEB screen means that the communication terminal 4 can display the WEB screen via the Internet 5.

When the transmission condition of the WEB screen data prepared for transmission is satisfied, the control circuit 6a transmits the corresponding WEB screen data to the communication terminal 4 from the communication control circuit 6f. Thus, by transmitting the WEB screen data from the server 2 to the communication terminal 4, the communication terminal 4 can display the WEB screen provided by the server 2 via the Internet 5. That is, the operator can browse the WEB screen created by the server 2 via the communication terminal 4.

The M2M server 3 has an M2M platform server 3a. The M2M server 3 is connected to the server 2 via the Internet 5 and transmits / receives basic vehicle information and vehicle information to / from the server 2 via the Internet 5. The M2M server 3 is also connected to a server (not shown) having another function such as managing basic vehicle information and vehicle information via the Internet 5, and is connected to the server having the other function. However, basic vehicle information and vehicle information are transmitted and received via the Internet 5.

The communication terminal 4 is, for example, a tablet terminal that can be carried by an operator who performs vehicle diagnosis. By carrying the communication terminal 4, the worker can diagnose the vehicle while viewing and checking the WEB screen displayed on the communication terminal 4 without being restricted by the working range. As shown in FIG. 4, the communication terminal 4 includes a control unit 4a, a connection connector 4b, a wide area wireless communication unit 4c, a command conversion unit 4d, a display unit 4e, an operation reception unit 4f, and a storage unit 4g. Have

The control unit 4a includes a microcomputer having a CPU, a ROM, a RAM, and the like. The control unit 4a controls the overall operation of the communication terminal 4 by causing the CPU to execute a computer program stored in the ROM. The connection connector 4 b is a connection terminal compliant with the OBD (On Board Diagnostic) 2 standard, and a connection cable 10 for acquiring vehicle information from the vehicle 9 can be connected thereto. In the present embodiment, the configuration in which the communication terminal 4 and the vehicle 9 are connected by wire via the connection cable 10 is described, but the communication terminal 4 and the vehicle 9 may be connected wirelessly.

The wide-area wireless communication unit 4c is connectable to the Internet 5 and can receive (downloadable) WEB screen data from the server 2 in a state where the Internet 5 is connected to the server 2 and is acquired from the vehicle 9 Basic vehicle information and vehicle information can be transmitted to the server 2 via the M2M server 3. The command conversion unit 4d is transmitted and received via the Internet 5 between the communication terminal 4 and the server 2 and the basic vehicle information and the data format (protocol) of the vehicle information transmitted and received between the communication terminal 4 and the vehicle 9. Convert basic vehicle information and data format of vehicle information (protocol conversion). The display unit 4e is composed of, for example, a liquid crystal display (for example, a touch panel display) having a touch function.

Since the WEB browser (Internet browser, WWW browser) is incorporated in the control unit 4a, the control unit 4a constructs WEB screen data received from the server 2 to the wide area wireless communication unit 4c by the function of the WEB browser. Then, it is possible to display the WEB screen on the display unit 4e and follow the hyperlink. The operation accepting unit 4f is configured by, for example, a touch switch (also referred to as an icon) formed on a WEB screen displayed on the display unit 4e, and accepts a setting input by an operator's operation. The storage unit 4g stores various types of data necessary for the control unit 4a to execute various types of data processing.

The vehicle 9 includes a connection connector 9a to which the connection cable 10 described above can be connected, and a first control unit 11a, a second control unit 12a, a third control unit 13a, and a fourth control unit 14a. The 1st control part 11a, the 2nd control part 12a, the 3rd control part 13a, and the 4th control part 14a are connected via the connection connector 9a and the Controller Area Network (CAN) 9b. The 1st control part 11a detects ON / OFF of ACC switch 11b, and displays the detection result on the 1st display part 11c (indicator). The second control unit 12a detects the operation amount (depression amount) of the accelerator pedal 12b, and displays the detection result on the second display unit 12c (tachometer). The third control unit 13a detects the operation position (high speed, medium speed, low speed, off, etc.) of the wiper switch 13b, and displays the detection result on the third display unit 13c (indicator). The fourth control unit 14a detects the operation position of the light switch 14b (full light, vehicle width light, off, etc.), and displays the detection result on the fourth display unit 14c (indicator).

The detection result indicating ON / OFF of the ACC switch 11b is displayed on the first display unit 11c, so that the operator can check the ON / OFF of the ACC switch 11b. The detection result indicating the operation amount of the accelerator pedal 12b is displayed on the second display unit 12c, so that the operator can check the operation amount of the accelerator pedal 12b. By displaying the detection result indicating the operation position of the wiper switch 13b on the third display unit 13c, the operator can confirm the operation position of the wiper switch 13b. By displaying the detection result indicating the operation position of the light switch 14b on the fourth display unit 14c, the operator can check the operation position of the light switch 14b.

In a state where the communication terminal 4 is connected to the vehicle 9 via the connection cable 10, the communication terminal 4 transmits a basic vehicle information request and a vehicle information request to the vehicle 9, and transmits basic vehicle information and vehicle information from the vehicle 9. Receive (acquire). The basic vehicle information is information related to an ID (identification information) of an ECU (Electronic Control Unit) mounted on the vehicle 9, for example, and whether or not data communication is established between the server 2 and the vehicle 9. This is information for authentication. Vehicle information is a diagnosis or data. The diagnosis is information related to DTC (diagnostic trouble code, failure diagnosis code), FFD (freeze frame data), pending, and the like held by an ECU mounted on the vehicle 9. The data includes, for example, engine speed, engine coolant temperature, and other sensor and actuator control states, ACC switch 11b on / off, accelerator pedal 12b operation amount, wiper switch 13b operation position, and light switch 14b operation. This is information about the position and the like. When the worker changes the vehicle state, the change in the vehicle state is reflected in the vehicle information. For example, when the operator operates (depresses) the accelerator pedal 12b, a change in the operation amount of the accelerator pedal 12b is reflected in the vehicle information.

In the configuration described above, as shown in FIG. 1, basic vehicle information and vehicle information transmitted from the communication terminal 4 are received by the server 2 via the M2M server 3. On the other hand, the WEB screen data transmitted from the server 2 is received by the communication terminal 4 without passing through the M2M server 3. That is, a route in which basic vehicle information and vehicle information acquired from the vehicle 9 are transmitted from the communication terminal 4 and received by the server 2 and a route in which the WEB screen data is transmitted from the server 2 and received by the communication terminal 4 are Different.

Next, the operation of the above configuration will be described with reference to FIGS.

When the communication terminal 4 is connected to the server 2 via the Internet 5, the WEB browser function receives the WEB screen data from the server 2 and constructs the received WEB screen data to display the WEB screen. It becomes possible. When the operator selects an item for diagnosis from the main menu screen while the main menu screen is displayed on the display unit 4e (B1), the communication terminal 4 sends a diagnosis start request from the wide area wireless communication unit 4c to the server 2. Transmit (B2).

When the communication control circuit 6f receives the diagnosis start request transmitted from the communication terminal 4 (C1), the server 2 selects and provides a vehicle selection screen from the WEB screen stored in the WEB screen storage unit 6e (C2 ). When the server 2 provides the vehicle selection screen, the communication terminal 4 receives the WEB screen data constituting the vehicle selection screen from the server 2 by the function of the WEB browser, and constructs the received WEB screen data to construct the vehicle selection screen. Is displayed on the display unit 4e. That is, the operator can browse and confirm the vehicle selection screen displayed on the communication terminal 4 (B3), select the vehicle to be diagnosed, and proceed to the next step.

If the vehicle 9 to be diagnosed is a new vehicle, the worker sets and inputs a registration number, a chassis number, etc., and determines the vehicle 9 to be diagnosed. A new vehicle is a vehicle that has not been a target of diagnosis by the vehicle diagnosis system 1 in the past, and is a vehicle that is a target of diagnosis for the first time. On the other hand, if the vehicle 9 to be diagnosed is a vehicle that is not newly registered, the operator selects the vehicle 9 to be diagnosed by selecting the vehicle from which registered numbers, chassis numbers, and the like are registered. A vehicle that is not newly registered is a vehicle that has been a target of diagnosis by the vehicle diagnosis system 1 in the past, and is a vehicle that is a target of subsequent diagnosis.

When the operator determines the vehicle 9 to be diagnosed, the server 2 selects the vehicle (C3) and determines whether there is a diagnosis availability condition based on the sampling speed (C4). The presence / absence of diagnosis enable / disable condition indicates that an item that can be diagnosed depends on the sampling rate. If the server 2 determines that there is a diagnosis enable / disable condition based on the sampling rate (C4: YES), the server 2 selects and provides a diagnosis enable condition screen (DIAG COND DISP) from the WEB screen stored in the WEB screen storage unit 6e ( C5). When the server 2 provides the diagnosable condition screen, the communication terminal 4 receives the WEB screen data constituting the diagnosable condition screen from the server 2 by the function of the WEB browser, and constructs the received WEB screen data for diagnosis. A possible condition screen is displayed on the display unit 4e. In other words, the operator can view and check the diagnosable condition screen displayed on the communication terminal 4 (B4) and grasp the diagnosable condition.

On the other hand, when the server 2 determines that there is no diagnosis availability condition based on the sampling rate (C4: NO), the server 2 selects and provides a diagnosis start screen from the WEB screen stored in the WEB screen storage unit 6e (C6). When the server 2 provides the diagnosis start screen, the communication terminal 4 receives the WEB screen data constituting the diagnosis start screen from the server 2 by the function of the WEB browser, constructs the received WEB screen data, and starts the diagnosis start screen. Is displayed on the display unit 4e. That is, the operator can check and confirm the diagnosis start screen displayed on the communication terminal 4 (B5), can grasp an instruction for starting diagnosis, and can proceed to the next step.

When the worker confirms the diagnosis start screen, the server 2 transmits a diagnosis request from the communication AP server 8 to the communication terminal 4 via the M2M server 3 (C7). When the communication terminal 4 receives the diagnosis request transmitted from the server 2 by the wide area wireless communication unit 4c (B6), the communication terminal 4 converts the received diagnosis request into a command, and transmits the command converted diagnosis request via the connection cable 10 to the vehicle. 9 (B7). When the vehicle 9 receives the diagnosis request transmitted from the communication terminal 4 (A1), the vehicle 9 analyzes the received diagnosis request and transmits the diagnosis specified by the diagnosis request to the communication terminal 4 via the connection cable 10. (A2). When the communication terminal 4 receives the diagnosis transmitted from the vehicle 9 (B8), the communication terminal 4 converts the diagnosis into a command, and transmits the command-converted diagnosis from the wide area wireless communication unit 4c to the server 2 via the M2M server 3. (B9).

When the server 2 receives the diagnosis transmitted from the communication terminal 4 by the communication AP server 8 (C8), the server 2 determines whether there is a diagnosis to be diagnosed (C9). If the server 2 determines that there is a diagnosis to be diagnosed (C9: YES), the server 2 stops the subsequent processing (avoids diagnosis). On the other hand, if the server 2 determines that there is no diagnosis in the object to be diagnosed (C9: NO), it sends an engine (drive mechanism) water temperature request (TEMP REQ) from the communication AP server 8 to the communication terminal 4 via the M2M server 3. Transmit (C10). When the communication terminal 4 receives the engine water temperature request transmitted from the server 2 by the wide area wireless communication unit 4c (B10), the communication terminal 4 converts the received engine water temperature request into a command, and sends the command-converted engine water temperature request via the connection cable 10. To the vehicle 9 (B11). When the vehicle 9 receives the engine water temperature request transmitted from the communication terminal 4 (A3), the vehicle 9 transmits the engine water temperature indicating the temperature of the cooling water for cooling the engine to the communication terminal 4 via the connection cable 10 (A4). When receiving the engine water temperature transmitted from the vehicle 9 (B12), the communication terminal 4 converts the engine water temperature into a command, and sends the command-converted engine water temperature from the wide area wireless communication unit 4c to the server 2 via the M2M server 3. (B13).

When the server 2 receives the engine water temperature transmitted from the communication terminal 4 by the communication AP server 8 (C11), the server 2 determines whether or not the engine water temperature is equal to or higher than a predetermined temperature (C12). When determining that the engine water temperature is not equal to or higher than the predetermined temperature (C12: NO), the server 2 selects and provides a warm-up instruction screen from the WEB screen stored in the WEB screen storage unit 6e (C13).

The server 2 returns to step C10 and continues to transmit the engine water temperature request to the communication terminal 4 until it is determined that the engine water temperature is equal to or higher than the predetermined temperature, and the same processing is repeated. When the server 2 provides the warm-up instruction screen to the communication terminal 4, the communication terminal 4 receives the WEB screen data constituting the warm-up instruction screen from the server 2 by the function of the WEB browser, and receives the received WEB screen data. The warm-up instruction screen is constructed and displayed on the display unit 4e. That is, the worker can view and confirm the warm-up instruction screen displayed on the communication terminal 4 (B14), and can grasp that warm-up is necessary when starting diagnosis.

On the other hand, if the server 2 determines that the engine water temperature is equal to or higher than the predetermined temperature (C12: YES), the server 2 starts diagnosis (C14) and sends a data request (DATA REQ) from the communication AP server 8 via the M2M server 3. It transmits to the communication terminal 4 (C15). When the communication terminal 4 receives the data request transmitted from the server 2 by the wide area wireless communication unit 4c (B15), the communication terminal 4 converts the received data request into a command, and transmits the command converted data request to the vehicle via the connection cable 10. 9 (B16). When the vehicle 9 receives the data request transmitted from the communication terminal 4 (A5), the vehicle 9 transmits the data designated by the received data request to the communication terminal 4 via the connection cable 10 (A6).

When the server 2 starts diagnosis and transmits a data request from the communication AP server 8 to the communication terminal 4 via the M2M server 3, the server 2 selects an operation instruction screen from the WEB screen stored in the WEB screen storage unit 6e. (C16). When the server 2 provides the operation instruction screen, the communication terminal 4 receives the WEB screen data constituting the operation instruction screen from the server 2 by the function of the WEB browser, constructs the received WEB screen data, and operates the operation instruction screen. Is displayed on the display unit 4e. That is, the operator browses and confirms the operation instruction screen displayed on the communication terminal 4 (B17), and performs diagnosis such as IG ON, engine start, idle, racing, full-open racing as shown in FIG. An instruction for proceeding can be grasped, and the process can proceed to the next step.

At this time, when the worker changes the vehicle state in accordance with the instruction described on the operation instruction screen (A7), data reflecting the change in the vehicle state is transmitted from the vehicle 9 and is transmitted to the server 2 via the communication terminal 4. Received. For example, the instruction described on the operation instruction screen is an instruction to operate (depress) the accelerator pedal 12b, and when the operator operates the accelerator pedal 12b, data indicating the engine speed linked to the operation amount of the accelerator pedal 12b. Is transmitted from the vehicle 9 and received by the server 2 via the communication terminal 4. When the communication terminal 4 receives the data transmitted from the vehicle 9 as described above (B18), the communication terminal 4 converts the received data into a command, and transmits the command-converted data from the wide area wireless communication unit 4c via the M2M server 3. It transmits to the server 2 (B19).

When the server 2 receives the data transmitted from the communication terminal 4 by the communication AP server 8 (C17), the server 2 determines the sampling rate of the data (C18). When the server 2 determines that the data sampling speed is not equal to or higher than a predetermined speed for various diagnostic conditions such as start-up and idling, the server 2 selects a diagnosable item screen from the WEB screen stored in the WEB screen storage unit 6e. Provide (C19). When the server 2 provides the diagnosable item screen, the communication terminal 4 receives the WEB screen data constituting the diagnosable item screen from the server 2 by the function of the WEB browser, and constructs the received WEB screen data for diagnosis. The possible item screen is displayed on the display unit 4e. That is, the worker can browse and check the diagnosable item screen displayed on the communication terminal 4 (B20), and can grasp the items that can be diagnosed.

The server 2 acquires the operator's operation conditions such as the on / off timing of the ACC switch 11b of the worker and the operation amount of the accelerator pedal 12b acquired from the vehicle 9, and the on timing of the ACC switch 11b is not a predetermined timing. If the operation amount of the accelerator pedal 12b is not within the range of the predetermined operation amount, it is determined that the operator is performing an inappropriate operation for determining the diagnosis. If it is determined that the operator is performing an inappropriate operation for determining the diagnosis, the server 2 determines that the reliability of the data acquired from the vehicle 9 is low and the data needs to be acquired again (C20: YES), a data re-acquisition necessary screen is selected and provided from the WEB screen stored in the WEB screen storage unit 6e (C21).

Further, the server 2 returns to step C14 and continues to transmit a data request to the communication terminal 4 until it is determined that data reacquisition is not necessary, and the same processing is repeated. When the server 2 provides the data re-acquisition necessary screen to the communication terminal 4, the communication terminal 4 receives the WEB screen data constituting the data re-acquisition necessary screen from the server 2 by the function of the WEB browser, and the received WEB screen Data is constructed and a data reacquisition necessary screen is displayed on the display unit 4e. That is, the operator can confirm by viewing and confirming the data reacquisition necessary screen displayed on the communication terminal 4 (B21) and proceed to the next step. Can do. Note that the operator may be able to cancel the reacquisition of data.

On the other hand, if the server 2 determines that the operator has performed a correct operation for determining diagnosis, the server 2 determines that the data acquired from the vehicle 9 is highly reliable and does not need to be acquired again (C20: NO). Then, a diagnosis result is created based on the data acquired so far (C22), and the diagnosis is terminated (C23). Then, the server 2 selects a frame (model) of the diagnosis result screen from the WEB screen stored in the WEB screen storage unit 6e, and provides a diagnosis result screen in which the current diagnosis result is described in the frame (C24). ). When the server 2 provides the diagnosis result screen, the communication terminal 4 receives the WEB screen data constituting the diagnosis result screen from the server 2 by the function of the WEB browser, constructs the received WEB screen data, and forms the diagnosis result screen. Is displayed on the display unit 4e. The worker can view and confirm the diagnosis result screen displayed on the communication terminal 4 (B22) and grasp the diagnosis result.

Specific examples of the above series of processing will be described with reference to FIGS. Here, as shown in FIG. 8, a case where the server 2 diagnoses the engine (corresponding to a drive mechanism) will be described. As shown in FIG. 9, when the operator presses the “diagnosis” icon 101a while the communication terminal 4 displays the main menu screen 101, the communication terminal 4 causes the operator to press the “diagnosis” icon 101a. An operation signal indicating that it has been sent is transmitted to the server 2. Note that pressing the icon 101a means selecting the icon 101a, and is not limited to the pressing operation.

When the server 2 receives the operation signal transmitted from the communication terminal 4, the server 2 transmits WEB screen data to the communication terminal 4. Upon receiving the WEB screen data from the server 2, the communication terminal 4 displays “engine”, “hybrid”, and “car air conditioner” as selectable targets on the main menu screen 101 as shown in FIG. . When the worker selects, for example, “engine” as the diagnosis target, the communication terminal 4 transmits an operation signal indicating that the worker has selected “engine” as the diagnosis target to the server 2.

When the server 2 receives the operation signal transmitted from the communication terminal 4, the server 2 transmits WEB screen data constituting the vehicle selection screen 102 to the communication terminal 4. When receiving from the server 2, the communication terminal 4 constructs its WEB screen data and displays a vehicle selection screen 102 as shown in FIG. 11. When the worker selects the vehicle 9 to be diagnosed, the communication terminal 4 transmits to the server 2 an operation signal indicating that the worker has selected the vehicle 9 to be diagnosed. In FIG. 11, for example, “vehicle A” indicates a vehicle name. For example, “PPP12-XXXX” indicates a chassis number. For example, “Mikawa na 55XX” and “Mikawa me 17XX” represent car registration numbers.

When the server 2 receives the operation signal transmitted from the communication terminal 4, the server 2 transmits WEB screen data constituting the diagnosis start screen 103 to the communication terminal 4. Upon receiving the WEB screen data from the server 2, the communication terminal 4 constructs the received WEB screen data and displays a diagnosis start screen 103 as shown in FIG. By viewing and confirming the diagnosis start screen 103, the operator grasps that the instruction for starting diagnosis is the P range, the engine warm-up, IGON (engine stop), electric load OFF, etc. Can do. When the worker presses the start button 103a, the communication terminal 4 transmits to the server 2 an operation signal indicating that the worker has pressed the start button 103a.

When the server 2 receives the operation signal transmitted from the communication terminal 4, the server 2 transmits a data request for acquiring data indicating the current temperature of engine cooling water (engine water temperature) to the communication terminal 4. When the server 2 receives data indicating the current temperature of the engine cooling water from the communication terminal 4 and determines that the current temperature of the engine cooling water has not reached the predetermined temperature, the server 2 configures the warm-up instruction screen 104. The WEB screen data is transmitted to the communication terminal 4. When receiving the WEB screen data from the server 2, the communication terminal 4 constructs the received WEB screen data, and displays the warm-up instruction screen 104 as shown in FIG. By viewing and checking the warm-up instruction screen 104, the operator can grasp the current temperature of the engine cooling water (“55 ° C.” is illustrated in FIG. 13), and (i ) It is necessary to perform a warm-up operation because the current temperature of the engine cooling water does not reach a predetermined temperature (“70 ° C.” is illustrated in FIG. 13), and (ii) the engine cooling water It is possible to grasp that the next procedure is automatically displayed when the temperature reaches the predetermined temperature. If the server 2 determines that the engine coolant temperature has reached the predetermined temperature, the server 2 does not transmit the WEB screen data constituting the warm-up instruction screen 104 to the communication terminal 4, and the communication terminal 4 The warm-up instruction screen 104 is not displayed.

The server 2 monitors whether or not the temperature of the engine cooling water has reached a predetermined temperature. When the server 2 determines that the temperature of the engine cooling water has reached the predetermined temperature, the WEB configuring the first operation instruction screen 105 is displayed. The screen data is transmitted to the communication terminal 4. Upon receiving the WEB screen data from the server 2, the communication terminal 4 constructs the received WEB screen data and displays the first operation instruction screen 105 as shown in FIG. By viewing and confirming the first operation instruction screen 105, the operator can grasp that the next procedure is a work to be started by stepping on the brake, and the timing to start by stepping on the brake can be determined. I can grasp it.

The server 2 transmits a data request indicating a data item necessary for diagnosis related to the first operation instruction screen 105 to the communication terminal 4. Specifically, as shown in FIG. 6, when diagnosing engine start, the server 2 transmits a data request indicating several items including the engine speed to the communication terminal 4. Since data items necessary for diagnosis are notified from the server 2 to the communication terminal 4, it is not necessary for the operator to set and input data items necessary for diagnosis. Further, when the communication terminal 4 acquires data indicating several items including the engine speed designated by the data request from the vehicle 9, the communication terminal 4 passes through the M2M server 3 in real time without storing the acquired data. To the server 2. That is, the communication terminal 4 functions as a relay device when the server 2 acquires data from the vehicle 9.

When the server 2 provides the first operation instruction screen 105 that prompts the engine to start by stepping on the brake as described above, the operator instructs the start timing by a countdown. As described above, the route in which basic vehicle information or vehicle information is transmitted from the communication terminal 4 and received by the server 2 is different from the route in which the WEB screen data is transmitted from the server 2 and received by the communication terminal 4. Therefore, when the communication terminal 4 transmits data related to the start of the start in a state where the server 2 is not ready to receive data related to the start of the start from the communication terminal 4, the server 2 receives the data. There is a possibility that it cannot be done. In consideration of such circumstances, the server 2 completes the preparation for receiving the data related to the start of the start from the communication terminal 4, and then the worker starts the start on the first operation instruction screen 105 so that the worker starts the start. Adjusts the timing at which the engine starts (establishes synchronization). The timing at which the operator starts the start is not limited to instructing by the countdown, and the timing at which the first operation instruction screen 105 is displayed may be adjusted. Similarly, the timing for the operator to perform work is also adjusted for a second operation instruction screen 106 and a third operation instruction screen 107 described later.

When the server 2 monitors whether or not the worker has started by stepping on the brake, and determines that the worker has started by stepping on the brake, the WEB screen data constituting the second operation instruction screen 106 is transmitted to the communication terminal 4. Send to. Upon receiving the WEB screen data from the server 2, the communication terminal 4 displays a second operation instruction screen 106 as shown in FIG. The operator browses and confirms the second operation instruction screen 106 so that the next procedure increases the engine speed to a predetermined number (in FIG. 15, “2000 rpm” is exemplified) and keeps it constant. It is possible to grasp that the work is to be maintained.

Here, the server 2 transmits a data request indicating a data item necessary for diagnosis related to the second operation instruction screen 106 to the communication terminal 4. Specifically, as shown in FIG. 6, the server 2 transmits a data request indicating several items including the engine speed to the communication terminal 4 even when diagnosing racing. That is, also in this case, since the data items necessary for diagnosis are notified from the server 2 to the communication terminal 4, it is not necessary for the operator to set and input the data items necessary for diagnosis. Also in this case, when the communication terminal 4 acquires data indicating some items including the engine speed designated by the data request from the vehicle 9, the M2M server 3 does not store the acquired data in real time. To the server 2 via.

Further, since the second operation instruction screen 106 describes an instruction to increase the engine speed to a predetermined number, the engine speed range is set so that the operator can check the engine speed. , A target line 106c that is a target, a target area 106d around the target line 106c, and a bar 106e that indicates the engine speed. Is displayed. The scale 106b, the target line 106c, the target area 106d, and the bar 106e may be displayed in color, or may be displayed in gray scale or black and white.

When the operator operates (depresses) the accelerator pedal 12b, vehicle information including the engine speed corresponding to the operation amount is received from the vehicle 9 via the communication terminal 4 and the M2M server 3 to the server 2. Thus, the engine speed is reflected on the second operation instruction screen 106. Specifically, as shown in FIG. 16, the length of the bar 106e indicating the engine speed on the second operation instruction screen 106 expands and contracts in response to the operator operating the accelerator pedal 12b. In this case, by adjusting the timing for displaying the second operation instruction screen 106 so that the operator operates the accelerator pedal 12b after the server 2 completes preparation for receiving the data indicating the engine speed, In conjunction with the operation of the accelerator pedal 12b by the operator, the length of the bar 106e indicating the engine speed on the second operation instruction screen 106 expands and contracts. That is, despite the fact that the operator has operated the accelerator pedal 12b, the length of the bar 106e does not expand or contract, or the length of the bar 106e expands or contracts behind the timing when the operator operates the accelerator pedal 12b. It is possible to avoid the situation and give the operator a sense of discomfort.

Further, since the length of the bar 106e expands and contracts following the amount of operation by which the operator operates the accelerator pedal 12b, a tachometer (a tachometer that indicates the engine speed) is added to the vehicle 9 to be diagnosed. Even if is not implemented, the engine speed can be confirmed by viewing and confirming the second operation instruction screen 106. Further, since the second operation instruction screen 106 is provided by the WEB screen, the resolution (scale) of the scale 106b can be freely set. Therefore, even if a tachometer is mounted on the vehicle 9 to be diagnosed, if the resolution of the scale 106b is set higher than the resolution of the tachometer, the second operation instruction screen 106 is browsed and confirmed, Fine adjustment of the engine speed can be easily performed. When the worker presses the measurement start button 106a, the communication terminal 4 transmits an operation signal indicating that the worker has pressed the measurement start button 106a to the server 2.

When the server 2 receives the operation signal transmitted from the communication terminal 4, the server 2 transmits the WEB screen data constituting the third operation instruction screen 107 to the communication terminal 4. When receiving the WEB screen data from the server 2, the communication terminal 4 constructs the received WEB screen data and displays the third operation instruction screen 107 as shown in FIG. By viewing and confirming the third operation instruction screen 107, the operator can grasp that the next procedure is a work of fully opening the accelerator (maximizing the depression of the accelerator pedal 12b). . In the third operation instruction screen 107, a scale 107a, a target line 107b, a target area 107c, and a bar 107d are displayed so that the operator can check the engine speed.

Here, the server 2 transmits to the communication terminal 4 a data request indicating data items necessary for the diagnosis related to the third operation instruction screen 107. Specifically, as shown in FIG. 6, when diagnosing full-open racing, the server 2 sends a data request indicating several items including the engine speed and the absolute throttle opening to the communication terminal 4. Send. That is, also in this case, since the data items necessary for diagnosis are notified from the server 2 to the communication terminal 4, it is not necessary for the operator to set and input the data items necessary for diagnosis. Also in this case, when the communication terminal 4 acquires from the vehicle 9 data indicating several items including the engine speed and the throttle opening specified by the data request, the communication terminal 4 stores the acquired data. Without being transmitted to the server 2 via the M2M server 3 in real time.

When the server 2 performs a series of diagnoses according to the operation instruction screen in which the operator switches in time series in this way and creates a diagnosis result, the WEB screen data constituting the diagnosis result screen 108 is transmitted to the communication terminal 4. Send. When receiving the WEB screen data from the server 2, the communication terminal 4 constructs the WEB screen data and displays the diagnosis result screen 108 as shown in FIG. The operator can grasp the diagnosis result obtained by performing a series of diagnoses by viewing and checking the diagnosis result screen 108. The communication terminal 4 displays the diagnosis result screen 108 in a scrollable manner as shown in FIG. Further, as shown in FIG. 20, the communication terminal 4 may print out the diagnosis result on a sheet 201 of a predetermined size.

21A to 21C show the relationship between the sampling rate and items that can be diagnosed. The sampling speed is indicated by time intervals (t1, t2,...) Of transmission timing when data is transmitted to the communication terminal 4 in response to the vehicle 9 receiving a data request from the communication terminal 4 (see FIG. 21A). . For example, for the start-up intake pipe pressure and idle data, the server 2 can make a determination necessary for diagnosis even if the sampling rate is low (even if the time interval of data transmission timing is long). It is determined that reacquisition is not necessary. On the other hand, for the startability of starting and racing data, for example, when the sampling speed is slow (when the time interval of data transmission timing is long), the server 2 cannot make a determination necessary for diagnosis. Is longer than a predetermined time (for example, in FIG. 21C, V1 [ms] or more or V2 [ms] or more), it is determined that the startability and the diagnosis of racing are impossible.

FIG. 22 shows reference values for determining the diagnosis result. The server 2 maintains a table of reference values for each vehicle characteristic (vehicle type, engine type, drive system (2WD / 4WD), transmission characteristics, etc.), and the reference is based on the time-dependent change (vehicle age) of the vehicle. Determine the value. For example, when the travel distance is set as the travel distance, the server 2 sets the upper limit for the coolant temperature to “A1” and the lower limit to “A2” until the travel distance reaches M1 [km]. If it is within the range of “A1” to “A2”, it is determined to be normal, and if the cooling water temperature is outside the range of “A1” to “A2”, it is determined to be abnormal. In addition, for example, until the travel distance reaches M2 [km], the server 2 sets the upper limit for the cooling water temperature to “A3” and the lower limit to “A4”, and the cooling water temperature ranges from “A3” to “A4”. If it is within, it is determined to be normal, and if the cooling water temperature is outside the range of “A3” to “A4”, it is determined to be abnormal. In addition, the server 2 stores time-dependent changes of the vehicle 9 and the same type of vehicle 9 such as the same engine type, or the results of determining the diagnosis result in the past, and determines the reference value and travel distance of the determination criterion, It has a function of dynamically determining a reference value based on vehicle information acquired from the vehicle 9.

As described above, according to the first embodiment, in the vehicle diagnosis system 1, the server 2 notifies the communication terminal 4 of data items necessary for diagnosis to be acquired from the vehicle 9. This eliminates the need for the operator to set and input data items necessary for diagnosis by operating the communication terminal 4, thereby reducing the burden on the operator who diagnoses the vehicle 9. Further, since the communication terminal 4 functions as a relay device and the communication terminal 4 transmits (relays) data acquired from the vehicle 9 to the server 2 in real time, a diagnosis result can be obtained quickly.

In addition, the server 2 provides the communication terminal 4 via the Internet 5 with a WEB screen including an instruction to an operator who diagnoses the vehicle 9. Thereby, the worker who handles the communication terminal 4 can grasp the instruction to himself / herself by browsing and confirming the WEB screen displayed on the communication terminal 4, and diagnose the vehicle 9 according to the instruction. It can be carried out. In this case, for example, even if a complicated instruction includes a plurality of procedures for changing the vehicle state every moment, the server 2 can update the WEB screen one by one to appropriately give the complicated instruction to the operator. .

In addition, by giving instructions to the operator on the WEB screen in this way, there is no need for a large-capacity storage unit (or means) in the communication terminal 4 or complicated software maintenance. An increase in the burden on the terminal 4 can be avoided. In addition, a WEB screen can be created for each of various characteristics of the vehicle 9 (characteristics of the vehicle type, engine type, drive system (2WD / 4WD), transmission, etc.), and the vehicle 9 to be diagnosed There is no need to prepare a plurality of communication terminals 4 for each characteristic. Further, the communication terminal 4 may be any communication terminal 4 having a function of displaying a WEB screen (WEB browser), and the communication terminal 4 can be generalized and easily realized.

(Second Embodiment)
Next, a second embodiment of the present disclosure will be described with reference to FIG. In the first embodiment, the communication terminal 4 directly acquires the vehicle information from the vehicle by directly connecting the communication terminal 4 to the vehicle. However, in the second embodiment, the communication terminal is connected to a dedicated vehicle. It is the structure which the communication terminal 4 acquires vehicle information from a vehicle via a vehicle connection terminal by connecting to a vehicle via a terminal.

The vehicle connection terminal 21 includes a control unit 21 a that controls the entire operation, a connection connector 21 b and a command conversion unit 21 c that correspond to the connection connector 4 b and the command conversion unit 4 d described in the first embodiment, and a communication terminal 22. And a BT communication unit 21d that performs Bluetooth (registered trademark) communication. The communication terminal 22 includes a control unit 22a that controls the entire operation, a BT communication unit 22b that performs Bluetooth communication with the vehicle connection terminal 21, the wide-area wireless communication unit 4c and the display unit 4e described in the first embodiment. A wide area wireless communication unit 22c corresponding to the operation receiving unit 4f and the storage unit 4g, a display unit 22d, an operation receiving unit 22e, and a storage unit 22f. Note that the vehicle connection terminal 21 and the communication terminal 22 are not limited to being connected via Bluetooth, and may be connected via other wireless communication methods (such as a wireless LAN). Moreover, the structure by which the vehicle connection terminal 21 and the communication terminal 22 are connected with a wire may be sufficient. Thus, even if it is the structure by which the function of the communication terminal 4 demonstrated in 1st Embodiment is shared by two terminals, the vehicle connection terminal 21 and the communication terminal 22, it is the effect similar to 1st Embodiment. Can be obtained.

(Other embodiments)
The present disclosure is not limited to the above-described embodiment, and can be modified or expanded as follows. The present disclosure is not limited to being applied when diagnosing an engine, but may be applied when diagnosing other mechanisms such as a car air conditioner. Diagnosis of the engine is not limited to diagnosis, start-up, idle, racing, and full-open racing, but may be divided into only diagnosis, only start, only idle, etc., or start and idle You may carry out as a combination of two or more.

The instruction to the worker on the WEB screen is not limited to characters, but may be a combination of images, or a still image or a moving image may be used. Further, for example, sound may be output in conjunction with an image. By combining the images, it is possible to expect an effect that the instruction to the worker can be given more accurately. Inside the vehicle 9, the connection between the connection connector 9 a and the first control unit 11 a to the fourth control unit 14 a is not limited to CAN, but other in-vehicle Ethernet (registered trademark), FlexRay (registered trademark), and the like. A communication method may be used.

According to the vehicle diagnosis system according to an example of the present disclosure, the communication terminal transmits vehicle information acquired from the vehicle to the server. The server diagnoses the vehicle by analyzing the vehicle information received from the communication terminal. In the server, the acquisition item notification unit 61 notifies the communication terminal of items of vehicle information necessary for diagnosis to be acquired from the vehicle. The communication terminal acquires vehicle information from the vehicle according to the item of vehicle information notified from the server, and transmits the acquired vehicle information to the server in real time.

That is, since the server notifies the communication terminal of items of vehicle information necessary for diagnosis to be acquired from the vehicle, it is not necessary for the operator to set and input the items of vehicle information necessary for diagnosis by operating the communication terminal. . As a result, the burden on the operator who performs vehicle diagnosis can be reduced. Further, since the vehicle information acquired from the vehicle by the communication terminal is transmitted to the server in real time, the diagnosis result can be obtained quickly. The embodiments, configurations, and aspects of the present disclosure have been illustrated above, but the embodiments, configurations, and aspects according to the present disclosure are not limited to the above-described embodiments, configurations, and aspects. For example, embodiments, configurations, and aspects obtained by appropriately combining technical units disclosed in different embodiments, configurations, and aspects are also included in the scope of the embodiments, configurations, and aspects according to the present disclosure.

Claims

A communication terminal (4, 22) for transmitting vehicle information acquired from the vehicle (9) to the server (2);
In a vehicle diagnosis system (1) comprising: a server (2) that analyzes vehicle information received from the communication terminals (4, 22) and diagnoses a vehicle (9);
The server (2) includes an acquisition item notification unit (61) for notifying the communication terminal (4, 22) of items of vehicle information necessary for diagnosis to be acquired from the vehicle (9),
The communication terminal (4, 22) acquires vehicle information from the vehicle (9) according to the item of vehicle information notified from the server (2), and sends the acquired vehicle information to the server (2) in real time. Vehicle diagnostic system (1) to transmit.
In the vehicle diagnostic system (1) according to claim 1,
The server (2) is an acquisition item determination unit that determines items of vehicle information necessary for diagnosis to be acquired from the vehicle (9) according to the contents of diagnosis and the classification of the vehicle (9) to be diagnosed. (62)
The said acquisition item notification part (61) is a vehicle diagnostic system (1) which notifies the item of the vehicle information determined by the said acquisition item determination part (62) to the said communication terminal (4, 22).
In the vehicle diagnostic system (1) according to claim 2,
When the content of the diagnosis is a diagnosis of the drive mechanism, the acquisition item determination unit (62) should acquire from the vehicle (9) according to the characteristics of the drive mechanism of the vehicle (9) to be diagnosed A vehicle diagnosis system (1) for determining items of vehicle information necessary for diagnosis.
In the vehicle diagnostic system (1) according to any one of claims 1 to 3,
In the server (2), a diagnosis acquisition unit (63) for acquiring a diagnosis of the vehicle (9) as the vehicle information and a diagnosis of the vehicle (9) to be diagnosed are acquired by the diagnosis acquisition unit (63). A vehicle diagnosis system (1) comprising: a diagnosis avoidance unit (64) for avoiding execution of diagnosis based on vehicle information in the event of a failure.
In the vehicle diagnostic system (1) according to any one of claims 1 to 4,
The server (2) includes a data acquisition unit (65) that acquires data of the vehicle (9) as the vehicle information, and a reference value when the data of the vehicle (9) is acquired by the data acquisition unit (65). A vehicle diagnosis system (1) comprising: a diagnosis result determination unit (66) for determining a diagnosis result in comparison with
In the vehicle diagnostic system (1) according to claim 5,
The server (2) is a vehicle diagnosis system (1) provided with a reference value determination unit (67) that determines the reference value according to the contents of diagnosis and a change with time of the vehicle (9) to be diagnosed.
In the vehicle diagnostic system (1) according to claim 6,
The reference value determining unit (67) is a vehicle diagnosis system (1) that dynamically determines the reference value according to vehicle information acquired from the vehicle (9) in the past.
In the vehicle diagnostic system (1) according to any one of claims 1 to 7,
The server (2) is configured to determine whether or not a diagnosis enable / disable condition based on a sampling speed indicating a speed at which the communication terminal (4, 22) acquires data from the vehicle (9) is set. 68)
A diagnosis possible condition notifying unit (69) for notifying the communication terminal (4, 22) of a diagnosable condition when it is determined by the diagnosis enable / disable condition determining unit (68) that a diagnosis enable / disable condition based on a sampling rate is set. A vehicle diagnostic system (1) comprising:
In the vehicle diagnostic system (1) according to any one of claims 1 to 8,
The server (2) includes a drive mechanism temperature acquisition unit (70) that acquires the temperature of the drive mechanism of the vehicle (9), and
A warm-up necessity determination unit (71) that determines whether the drive mechanism needs to be warmed up based on the temperature of the drive mechanism acquired by the drive mechanism temperature acquisition unit (70);
A warm-up necessity notification unit (72) for notifying the communication terminal (4, 22) that warm-up is necessary when the warm-up requirement is determined by the warm-up necessity determination unit (71); A vehicle diagnosis system (1) provided.
In the vehicle diagnostic system (1) according to any one of claims 5 to 9,
The server (2) includes a data reacquisition necessity determination unit (73) for determining whether or not the data acquired by the communication terminal (4, 22) from the vehicle (9) is necessary. .
In the vehicle diagnostic system (1) according to claim 10,
The data reacquisition necessity determination unit (73) has different data reacquisition determination conditions for each characteristic of the vehicle (9), and the data acquired by the communication terminal (4, 22) from the vehicle (9) and the data A vehicle diagnosis system (1) that determines whether or not data reacquisition is necessary based on data reacquisition determination conditions.
In the vehicle diagnosis system (1) according to claim 10 or 11,
Data re-acquisition necessity notifying unit for notifying the communication terminal (4, 22) that data re-acquisition is required when the data re-acquisition necessity is determined by the data re-acquisition necessity determining unit (73). (74), A vehicle diagnostic system (1) provided with.
In the vehicle diagnostic system (1) according to any one of claims 10 to 12,
A sampling rate determining unit (75) for determining a sampling rate indicating the rate at which the communication terminal (4, 22) has acquired data from the vehicle (9);
The data reacquisition necessity determination unit (73) is a vehicle diagnosis system (1) that determines whether data reacquisition is necessary based on the sampling speed determined by the sampling speed determination unit (75).
In the vehicle diagnostic system (1) according to any one of claims 10 to 12,
An operator operation determination unit (76) for determining whether the operation of the operator is within a predetermined range;
The data re-acquisition necessity determination unit (73) determines whether or not data re-acquisition is necessary based on whether or not the operator's operation determined by the worker operation determination unit is within a predetermined range. Diagnostic system (1).
The vehicle diagnosis system (1) is configured together with the communication terminal (4, 22) that transmits the vehicle information acquired from the vehicle (9) to the server (2), and the vehicle information received from the communication terminal (4, 22) is analyzed. In the server (2) for diagnosing the vehicle (9),
A server (2) including an acquisition item notification unit (61) for notifying the communication terminal (4, 22) of items of vehicle information necessary for diagnosis to be acquired from the vehicle (9).
The vehicle diagnosis system (1) is configured together with the communication terminal (4, 22) that transmits the vehicle information acquired from the vehicle (9) to the server (2), and the vehicle information received from the communication terminal (4, 22) is analyzed. In the computer provided in the server (2) for diagnosing the vehicle (9),
The computer program for performing the procedure which notifies the item of the vehicle information required for a diagnosis which should be acquired from a vehicle (9) to the said communication terminal (4, 22).
A computer-readable non-transitory storage medium storing the computer program according to claim 16.