• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method for assisting the remote diagnosis of a vehicle, implemented by diagnostic assistance equipment, comprising the following steps: - The downloading (31) of a list of computers from a vehicle database, - the determination (32) for each computer of the list, of a communication protocol for dialogue with said computer, - The sending (33) for each computer, of at least one request diagnosis method according to the determined communication protocol, - Reception (34) of at least one response to the diagnostic request sent, - Update (35) of a diagnostic database from the received response.
    公开号:FR3028068A1
    申请号:FR1460455
    申请日:2014-10-30
    公开日:2016-05-06
    发明作者:Thierry Joly；Franck Pinon；Jean Francois Vif
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to remote diagnostic assistance systems for motor vehicles.
    [0002] The growth of on-board electronics has made vehicle maintenance more complex. Faced with this complexity, vehicle manufacturers have developed more and more efficient self-diagnostic functions to report anomalies detected by the onboard system itself. Currently, a maintenance operator has functions and indicators assigned to separate faults (usually referred to as fault codes or DTC for Diagnostic Trouble Codes). In a garage, to precisely locate the breakdown of the vehicle, the operator thus uses functions of very different nature such as: the reading of information 15 taken from the vehicle, the activation of test routines, the reinitialization of learning or the download of a software corrector of an anomaly. Before making a diagnosis of the vehicle, it is necessary to make an inventory of the vehicle so as to precisely determine the electronic components and the state of the vehicle. This inventory is made during a specific procedure sometimes called "Global Test". This procedure makes it possible to inventory the electronic computers present in the vehicle, to identify them (type of computer, hardware version, software version, calibration version) and to read the recorded faults ( present or fugitive) as well as the vehicle contexts associated with these defects. According to the known art, this procedure is carried out using a dedicated tool that must be physically connected to the vehicle. This procedure has the disadvantage of being long, but it is necessary before making a diagnosis. The invention therefore aims to remedy the aforementioned problems by providing a procedure and equipment for remotely performing a procedure performing an inventory of electronic computers and for detecting errors of these computers. It proposes more specifically for this purpose a method for assisting remote diagnostics of a vehicle, implemented by diagnostic assistance equipment, comprising the following steps: Downloading a list of calculators from a vehicle database, the determination for each computer of the list, of a communication protocol for communicating with said computer, sending for each computer, at least one diagnostic request according to the determined communication protocol, Receiving at least one response to the diagnostic request sent, Updating a diagnostic database from the received response.
    [0003] The invention makes it possible to carry out a remote inventory of the computers of a vehicle and to detect errors of these computers. This inventory is performed independently of a diagnostic tool located in the concession. Thus, when a vehicle arrives in concession, it can be directly diagnosed. In fact, the diagnostic equipment in concession can then access the inventory carried out remotely. Access to a vehicle database allows the equipment to work with the most up-to-date vehicle manufacturer data. According to a characteristic of the invention, the method according to the invention further comprises issuing an alert if the response indicates a malfunction of the vehicle. The invention allows an exhaustive analysis of the computers of the vehicle by interrogating each of the computers of the vehicle. Thus, any fault of the vehicle can be reported to either the driver or the vehicle manufacturer. According to a first variant of the invention, the sending, for each computer, of at least one diagnostic request is made successively for each computer of the list. This variant has the advantage of being compatible with a large number of vehicles. According to a second variant of the invention, the sending, for each computer, of at least one diagnostic request is made simultaneously for all the computers of the list, the method further comprising a step of creating a script grouping a set of diagnostic requests for each calculator. This variant has the advantage of being faster than the previous one because of the smaller number of exchanges between the vehicle and the diagnostic assistance equipment. According to a characteristic of the invention, the method according to the invention furthermore comprises the transmission of a request from a list of calculators of the vehicle, intended for the vehicle database, the request comprising an identifier of the vehicle. This feature allows the diagnostic assistance equipment to work on up-to-date data without having to maintain a vehicle configuration database itself. According to a characteristic of the invention, the determination of a protocol for a computer comprises: the selection of a protocol from among a set of protocols compatible with the computer, the sending, to the computer, of a request with the selected protocol, Waiting for a response from the computer, - If a response is received, the configuration of the diagnostic assistance equipment so as to communicate with the computer according to the selected protocol, If no response is received, repeating the selection step by removing the protocol from the set of compatible protocols. This step makes it possible to determine a communication protocol for communicating with the computer without knowing the hardware version and / or the software version of the computer. According to a characteristic of the invention, the method according to the invention further comprises a step of sending, by the vehicle, a request to the vehicle database during a modification of a calculator of said vehicle, the request indicating the content of the modification of the calculator. This step keeps the configuration database always up-to-date. The invention also relates to equipment characterized in that it comprises means configured to implement the method according to one of the preceding claims. The invention also relates to a system comprising a vehicle, a database characterized in that it further comprises an equipment according to the preceding claim communicating with the vehicle and the vehicle database. Other features and advantages of the invention will appear on examining the detailed description below, and the accompanying drawings, in which: FIG. 1 schematically illustrates a first variant of a diagnostic assistance system; according to the present invention; Figure 2 schematically illustrates a second variant of a diagnostic aid system according to the present invention; FIG. 3 is a logic diagram representing the method according to the invention; FIG. 4 is a logic diagram showing the detail of a step of selecting a communication protocol; The attached drawings may not only serve to complete the invention, but also contribute to its definition, if any.
    [0004] Figure 1 schematically illustrates a first variant of a diagnostic aid system according to the present invention. Such a system comprises a vehicle 11, diagnostic assistance equipment 12 and a vehicle database 13. The vehicle 11 comprises a telematic device capable of exchanging data with equipment landed via a connection wireless for example Bluetooth or wifi. The vehicle 11 comprises a first computer. The first computer ECU1 is able to exchange data remotely with a diagnostic tool for example via a wireless telephone network (GSM or 3G). The vehicle comprises for example a second ECU2 ECU dedicated for example to the management of the vehicle engine 11. The vehicle comprises for example a third ECU3 ECU3 dedicated for example to the management of the passenger compartment of the vehicle. The third computer manages a certain number of electrical equipment of the vehicle 11 and in particular, airbags, interior lighting, locking / unlocking the doors and the trunk, the operation of the electric windows and sunroof, the timing of the wipers. ice. Each of these computers comprises at least one processor and at least one memory. The vehicle 11 is able to send to the diagnostic aid 12 a code identifying it, for example its VIN. Each of the computers of the vehicle is capable of responding to diagnostic requests from diagnostic assistance equipment 12, when they are formulated according to a protocol recognized by the computer. The diagnostic assistance equipment 12 is a dismounted equipment, that is to say a device located outside and away from the vehicle 11. The diagnostic assistance equipment 12 comprises means for interrogating a vehicle 11 via a diagnostic request. It also has a 12.1 database for storing responses to these queries. Diagnostic aiding equipment 12 implements the diagnostic aid method according to the invention. The diagnostic assistance device 12: requests a configuration of a vehicle from a vehicle identifier; 30 - sends diagnostic requests to the computers of a vehicle; - stores the responses to these queries in a 12.1 database. The vehicle configuration includes a list of computers mounted on the vehicle, possibly the communication protocol of each computer and possibly the type of network on which it is mounted (for example CAN for Controller Area Network or LIN for Local InterConnect Network) . The vehicle database includes for each vehicle, identified by a unique code, (the VIN, for Vehicle Identification Number) a series of data relating to the configuration of the vehicle, for example, the type of engine, the various options mounted on the vehicle ..... These data also describe which calculators are embedded in the vehicle. FIG. 2 schematically illustrates a second variant of a diagnostic assistance system according to the invention. The second variant comprises, as the first variant: a vehicle 21, diagnostic assistance equipment 22 and a vehicle database 13. The vehicle 21 of the second variant differs from that 11 of the first variant in that it is able to receive as a set of requests grouped together in the form of a script, to execute the script, to answer the requests of the script and to group the responses to these queries in a message intended for the diagnostic assistance equipment. The diagnostic assistance equipment 22 of the second variant differs from that of the first 12 in that it is able to group a set of requests in a script and to receive a set of responses to these requests 25 in a single message. The other elements are identical to both variants. The invention also relates to a method for assisting the diagnosis of a vehicle. With reference to FIG. 3, the method comprises the following steps: A step consists of downloading a list of computers from the vehicle database 13. To retrieve this list, the diagnostic assistance equipment 12, 22 sends to the vehicle database 13, a request comprising an identifier of the vehicle 11,21, for example the VIN. In response to this request the database 13 determines the list of computers present on board the vehicle 11,21.
    [0005] If the database includes the list of computers mounted on board the vehicle 11,21 associated with the identifier, this list is downloaded by the diagnostic assistance tool 12. However, it is possible that this list is not not in the database 13. In this case, the database 13 provides the diagnostic assistance equipment 12,22, a generic list of calculators that are potentially mounted in the vehicle 11,21. This list is for example determined using the vehicle model 11,21. In this case, some computers are not necessarily actually on board the vehicle 11,21.
    [0006] The method also comprises a determination step 32, for each computer of the list, of a communication protocol for dialogue with said computer. The description of the calculators provided in the list is generic. It indicates only the function of the computer (engine calculator, cabin calculator, ...). For a given calculator, there are several versions of this calculator. These versions do not support all the same communications protocols. Therefore, the diagnostic equipment must determine, for each computer, which communication protocol is supported by it. With reference to FIG. 4, the step 32 for determining a communication protocol for a computer comprises: selecting (32.1) a protocol from among a set of protocols compatible with the computer, sending (32.2) , to the computer, a request with the selected protocol, The wait (32.3) of a response from the computer, 30 If a response is received, the configuration (32.4) of the diagnostic assistance equipment (12,22) so as to communicate with the computer according to the selected protocol, If no response is received, repeating the selection step by removing the protocol from the set of compatible protocols. For example, diagnostic assistance equipment determines all protocols compatible with a motor ECU. And, for each of these protocols, and as long as no response reaches him, the equipment sends a request to the computer. When a response reaches the equipment 12,22, it is that the computer is able to communicate via the protocol of the request to which it has just responded.
    [0007] If no response reaches the device after the enumeration of all potentially compatible protocols then, the calculator is considered unmounted in the vehicle. The method also comprises a sending step 33 for each computer, of at least one diagnostic request according to the determined communication protocol. The method also comprises receiving 34 at least one response to the diagnostic request sent. The method also includes a step of updating the diagnostic database 12.1 from the received response.
    [0008] According to a first variant of the method according to the invention, the sending (33), for each computer, of at least one diagnostic request is made successively for each computer of the list. This first variant of the method according to the invention is implemented with the first variant of the system according to the invention.
    [0009] According to a second variant of the method according to the invention, the sending (33), for each computer, of at least one diagnostic request is made simultaneously for all the computers of the list, the method further comprising a step of creation of a script grouping a set of diagnostic requests for each of the computers.
    [0010] This second variant of the method according to the invention is implemented with the second variant of the system according to the invention.
    权利要求:
    Claims (4)
    [0001]
    REVENDICATIONS1. A method for assisting remote diagnostics of a vehicle (11,21), implemented by diagnostic assistance equipment (12,22), comprising the following steps: downloading (31) a list of computers from a vehicle database (13), 10 - The determination (32) for each computer of the list, a communication protocol for communicating with said computer, the sending (33) for each computer at least one diagnostic request according to the determined communication protocol, The reception (34) of at least one response to the diagnostic request sent, The update (35) of a diagnostic database (12.1) from the response received.
    [0002]
    2. Method according to claim 1, characterized in that it further comprises the emission (36) of an alert if the response indicates a malfunction of the vehicle (11,21).
    [0003]
    3. Method according to one of claims 1 or 2, characterized in that the sending (33) for each computer, at least one diagnostic request 25 is carried out successively for each computer list.
    [0004]
    4. Method according to one of claims 1 or 2, characterized in that the sending (33) for each computer, at least one diagnostic request is made simultaneously for all computers in the list, the method 30 further comprising a step of creating a script grouping a set of diagnostic requests for each calculator. . Method according to one of the preceding claims, characterized in that it furthermore comprises the transmission of a request from a vehicle computer list to the vehicle database (13). request comprising an identifier of the vehicle (11,21). 6. Method according to one of the preceding claims, characterized in that the determination (32) of a protocol for a computer comprises: The selection (32.1) of a protocol from a set of protocols compatible with the computer, L sending (32.2), to the computer, a request with the selected protocol, Waiting (32.3) for a response from the computer, If a response is received, the configuration (32.4) of the equipment of diagnostic aid (12,22) to communicate with the computer according to the selected protocol, If no response is received, repeating the selection step by removing the protocol from the set of compatible protocols. 7. Method according to one of the preceding claims, characterized in that it further comprises a step of transmission, by the vehicle (11,21), a request to the database (13) of vehicle during a modification of a computer of said vehicle (11,21), the request indicating the content of the modification of the computer. 8. Equipment (12,22) for remote diagnostic assistance of a vehicle (11,21) 25 characterized in that it comprises means configured to implement the method according to one of the preceding claims. 9. System comprising a vehicle (11,21) and a database (13) of vehicles, characterized in that it further comprises an equipment (12,22) according to the preceding claim communicating with the vehicle (11,21) and the database (13) of vehicles.
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    同族专利:
    公开号 | 公开日
    EP3213213B1|2020-07-29|
    EP3213213A1|2017-09-06|
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    CN107111536B|2020-12-01|
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    引用文献:
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    法律状态:
    2015-09-28| PLFP| Fee payment|Year of fee payment: 2 |
    2016-05-06| PLSC| Search report ready|Effective date: 20160506 |
    2016-09-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-09-21| PLFP| Fee payment|Year of fee payment: 4 |
    2018-06-29| CA| Change of address|Effective date: 20180312 |
    2018-06-29| CD| Change of name or company name|Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
    2018-09-19| PLFP| Fee payment|Year of fee payment: 5 |
    2019-09-19| PLFP| Fee payment|Year of fee payment: 6 |
    2020-09-17| PLFP| Fee payment|Year of fee payment: 7 |
    2021-09-22| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1460455A|FR3028068B1|2014-10-30|2014-10-30|METHOD, EQUIPMENT AND SYSTEM FOR ASSISTING DIAGNOSIS|FR1460455A| FR3028068B1|2014-10-30|2014-10-30|METHOD, EQUIPMENT AND SYSTEM FOR ASSISTING DIAGNOSIS|
    CN201580059133.9A| CN107111536B|2014-10-30|2015-10-27|Diagnostic assistance method, device and system|
    EP15798510.2A| EP3213213B1|2014-10-30|2015-10-27|Diagnostic aid method, device and system|
    PCT/FR2015/052897| WO2016066953A1|2014-10-30|2015-10-27|Diagnostic aid method, device and system|
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