EP1673733B1 - System zur prädiktiven diagnose von fehlern an einem kraftfahrzeug und onboard-diagnoseeinrichtung dafür - Google Patents

System zur prädiktiven diagnose von fehlern an einem kraftfahrzeug und onboard-diagnoseeinrichtung dafür Download PDF

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Publication number
EP1673733B1
EP1673733B1 EP04817221.7A EP04817221A EP1673733B1 EP 1673733 B1 EP1673733 B1 EP 1673733B1 EP 04817221 A EP04817221 A EP 04817221A EP 1673733 B1 EP1673733 B1 EP 1673733B1
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EP
European Patent Office
Prior art keywords
diagnostic
vehicle
diagnosis
module
data
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Expired - Fee Related
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EP04817221.7A
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English (en)
French (fr)
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EP1673733B8 (de
EP1673733A1 (de
Inventor
Yves Knipper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Automotive Service Solutions Inc
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SPX Service Solutions France SARL
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0816—Indicating performance data, e.g. occurrence of a malfunction
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers

Definitions

  • the present invention relates to the diagnosis of malfunctions of motor vehicles.
  • the more advanced diagnostic aid of the document US-A 5,331,3388 comprises means for acquiring symptomatic data provided by a user of the vehicle, means for acquiring operating data of the vehicle and it makes it possible to automate the development of diagnostics by the introduction of electronic and computer means.
  • the diagnosis remains rather empirical.
  • a device comprising symptomatic data acquisition means provided by a user of the vehicle, prior symptomatic data acquisition means, first application diagnostic aid means, for each operating data of the vehicle, is known; at least one predefined method for assisting the diagnosis, and second means for assisting the diagnosis by comparing the data of at least one of the two groups, respectively comprising the symptomatic data provided by the user of the vehicle and the Operational data of the vehicle, with previous symptomatic data.
  • Previous symptomatic data means the designation of data relating to symptoms collected in the past on motor vehicles and for each of which at least one malfunction, which is the cause, is known.
  • the structure of the frames exchanged between the vehicle and the ground station is defined so as to make it possible to find incidents corresponding to previous frames or to store new incidents corresponding to frames not yet detected.
  • the link between the probe and the garage mechanic's diagnostic tool, on the one hand, and the link between the garage mechanic's tool and the server's server. constructor, on the other hand, may be radio links.
  • the server and the database which constitute a central system, are located at the manufacturer while the diagnostic tool, which completes the on-board mobile diagnostic management unit, can be fixed, or disembarked, either at the garage is at the manufacturer.
  • the remarkable aspect of the invention lies in the integration of a portion of the diagnostic intelligence on board the vehicle to react in real time.
  • the predictive or preventive diagnosis is associated with embedded intelligence whereas the curative diagnosis corresponds to the dismounted intelligence.
  • a vehicle operating variable starts to drift and cross an alert threshold, it can be diagnosed on board to trigger an alert to the manufacturer - in transparency for the driver - then , after treatment, towards the driver.
  • the central management unit comprises a controller of diagnostic data management agents at the input and output of the computers of the vehicle, that is to say agents managing the physical data transmission resources of the data carriers.
  • computers including the CAN, VAN and LIN networks of the vehicle, and the software resources of these computers.
  • the management agents respond to the management agent controller requests and issue alerts in the event of a malfunction and / or exceeding the threshold.
  • the diagnostic data is associated with each other to form diagnostic frames in the means for storing the diagnostic data, each frame thus stored associating the data involved in a single malfunction or a single diagnosis.
  • the central management unit comprises a search module in the storage means for extracting frames containing the diagnostic data item that has been the subject of an alert issued by a management agent.
  • the central management unit comprises an interrogation module for interrogating the fixed diagnostic tool and extracting therefrom frames containing at least the diagnostic data that have been the subject of alerts issued by at least one agent management.
  • the central management unit includes a module for updating the storage means of the diagnostic device for storing the frames containing the diagnostic data from which a diagnosis could be established on the operation of the vehicle.
  • the predictive diagnostic system 1 for malfunctions of a motor vehicle comprises either a diagnostic tool 2 ground, or fixed, or landed, located at a garage, a central diagnostic system 3, located at a manufacturer of motor vehicles, and having a diagnostic server 31 associated with a central base of diagnostic data 32, the tool and the central system can be in radio link TR, or by any other network, with an onboard diagnostic device which will be discussed below.
  • ECUs electronice control units
  • 320 essentially the electronic control units 310, 320,... 3i0, control by their control signal modules 313, 323,..., 3i3 and through the links CD, and / or control, by RA network links that may belong to the CAN, VAN and LIN of the vehicle, with sensors 314, 324, ..., 3i4 associated with these ECUs, the functions 400 of the vehicle: its engine, the cockpit and its man - machine interface, its electrical, pneumatic, hydraulic, thermal, etc ...
  • the data of the sensors are collected by electronic cards 312, 322,..., 3i2, either self-test cards “BITE” (built-in test equipment) or “OBD” (on board diagnosis) cards, which deliver malfunction alerts or failures, over threshold.
  • BITE built-in test equipment
  • OOB on board diagnosis
  • the ECUs are equipped with diagnostic data management agents 311, 321,..., 3i1, that is to say, physical measurements taken on the members providing the functions 400 and the parameters of 3i3 modules controlling these organs, collected by the OBD / BITE cards or not, and regardless of the alerts they deliver.
  • diagnostic data are generic symptomatic data dysfunction.
  • the management agents 3i1 respond to requests from a management agent controller 110, explained below, and issue deviation data with respect to the operating standards and malfunction alarms.
  • the management agents also manage the physical data transmission resources of these computers by the CAN, VAN and LIN networks of the vehicle.
  • the central diagnostic management unit 100 may comprise several subassemblies that naturally can communicate with each other and cooperate together to perform the diagnosis.
  • the driver 221 is designed to communicate so that for the server and its associated base, or tool 2, the CPU 100 of Diagnostic management behaves like a personal computer network computer, LAN or INTRANET.
  • HMI human-machine interface
  • the central management unit 100 will now be described, with reference to the figure 2 .
  • This unit comprises a real-time controller 110, already mentioned above, 3i1 agents for managing the diagnostic data, input and output computers 3i0 of the vehicle.
  • the controller 110 is connected at the output to a module 120 for searching the received data frames and alerts, itself connected to a memory 121 of the data being processed, to the memory 202 of the diagnostic frames via the link 203, and input to a module 140 for managing requests to be sent to the management agents 3i1, this module 140 being connected to a memory 141 of the current requests.
  • the central unit 100 also comprises a diagnostic interrogation module 130.
  • the diagnostic interrogation module 130 receives the "candidate" data frames to be analyzed, transmitted by the frame search module 120, and can send requests to the request management module 140 for the agents 3i1, each agents managing and issuing these requests in the corresponding ECUs 3i0, either to the BITE modules 3i2 or to the control 3i3 modules 3i3.
  • the diagnostic data is associated with each other to form significant pre-diagnosis frames, each frame being defined by the association of the data involved in a single pre-diagnosis, and when the pre-diagnosis is proven, for example during the pre-diagnosis period.
  • the sub-module 134 also controls, also connected to the memory 202 by the link 203, a module 160 for updating this memory 202 frames containing diagnostic data from which a pre-diagnosis could be established on the operation of the vehicle.
  • the external interrogation sub-module 134 and the request management module 140 are connected to the HMI via a dialogue module 180 controlling the HMI via the link 213, and by receiving the answers.
  • the significant physical measurements of the operation of the engine 400 of the vehicle are cyclically carried out by the sensors 314 and collected by the card 312 via the network RA or directly calculated by the ECU 310, in this case a CCM (engine control computer), when the measurement is not accessible by calculation.
  • the management agent 310 takes some of these measurements, for example from the upstream and downstream lambda probes, in connection with significant pre-diagnosis frames related to the current operation, issued by the central processing unit 100. diagnostics, as well as the operating standards corresponding to the current operating parameters of application, here, for example carburizing richness charts and the angle of the acceleration control, the torque, the engine oil temperature, etc.
  • the agent 310 issues a dated alert and all of the diagnostic data thus collected to the controller 110 via the network RB.
  • the controller 110 collects, in step 10, all the alerts and the corresponding diagnostic data from all the ECUs of the vehicle and sorts them chronologically to prepare the subsequent establishment of a history, the dating being able to be a pre-diagnosis element before communicating them to the module 120 for searching the frames.
  • the module 120 synthesizes the diagnostic data received from the various ECUs and stored over time in the memory 121 of the data being processed by assembling them into a coherent frame " candidate "at the functional level of the vehicles, that is to say assembling data, engine control, electricity, cooling, ..., concerning physical quantities affecting the same functional process of the vehicle, for example engine operation, and according to a chronology corresponding to a possible degradation process.
  • These "candidate" frames are built on the frame patterns stored in advance in the memory 202.
  • step 40 the candidate frame is compared, by the module 132, to the previous candidate frames stored in the memory 201 of the vehicle history. If she is not there, she is memorized. Otherwise, the module 120 takes into account the result of the treatment which then took place. In particular, if there has been pre-diagnosis, we go to a step 41 HMI alert, and again to step 20 to search for a new candidate frame.
  • step 40 If in step 40 it turns out that the candidate frame is new for the vehicle, we go to a step 50, executed by the module 134, in which the same interrogation as in the step 40 is performed, but bearing, this time on the entire fleet of vehicles of the same type.
  • the module 134 sends requests to the message generation module 170 which, during a step 51, loads the communication means 220, via the link 223, the driver 221 ensuring the waiting, in a step 52, the responses of the tool 2 or the central diagnostic system 3, and possibly a restart in case of communication failure.
  • the module 134 retrieves the frames of the communicated responses and pre-diagnostics and, in step 60, analyzes them. These responses may be a pre-diagnosis corresponding to the candidate frame, in which case the alerting step 41 is executed, and the driver of the vehicle alerted, or frames of diagnostic data compatible with the candidate frame, in which case we pass in a step 70 of further research to be performed by the module 140, or an absence of risk, in which case no pre-diagnosis is possible and returns to step 10.
  • a vehicle operating variable starts drifting outside the standards and possibly crossing an alert threshold, it can be diagnosed on board to trigger an alert to the manufacturer and, after treatment, to the driver.
  • compatible frames frames having the same diagnostic data in common, one more complete with more data than the other, among the data capable of generating at least one symptomatic data dysfunction.
  • the module 140 records the missing data and analyzes the possibility of collecting them or no.
  • a test request 71 may be requested from the driver of the vehicle via the instrument panel HMI and, after acknowledgment 72 of the driver, the module 120 executes a step 30 of updating the candidate frame for a new analysis in steps 40 and 50 executed by the internal and external interrogation modules 132 and 134.
  • the module 140 generates a request for the management agents 3i1 concerned, a request sent by the controller 110 via the network RB during a step 90.
  • a function for downloading software, from the central diagnostic system 3, in the computers 3i0, to modify, via the agents 3i1, the computer ECU software that controls the acquisition of diagnostic data.
  • step 30 is reactivated.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Small-Scale Networks (AREA)

Claims (12)

  1. System für die Registrierung und Verwertung von Diagnosedaten, die sich auf den Betrieb von Organen eines Kraftfahrzeus eines bestimmten Typs beziehen, das umfasst:
    - eine zentrale Diagnoseverwaltungseinheit (100), die einen Controller (110) von Verwaltungsmitteln (3i1) der Diagnosedaten am Eingang und am Ausgang der ECU-Rechner (3i0) des Fahrzeugs umfasst,
    - ein mit der zentralen Einheit verbundenes Diagnosedaten-Erfassungsnetzwerk (RA, RB),
    - mindestens einen ersten Speicher (200) zum Aufbewahren erster Diagnosedaten, die sich auf das Fahrzeug beziehen, in dem Fahrzeug,
    - mindestens eine Kommunikationsverbindung (220), um mit mindestens einer Diagnosestation (2, 31) außerhalb des Fahrzeugs zu kommunizieren,
    - mindestens einen zweiten Speicher zum Aufbewahren zweiter Diagnosedaten, die sich auf Fahrzeuge dieses Typs beziehen, in der mindestens einen Diagnosestation
    wobei die zentrale Einheit ferner umfasst:
    - ein Untermodul (132) zum Lesen und Schreiben in dem ersten Speicher,
    - ein Untermodul (134) zum Lesen und Schreiben in dem zweiten Speicher,
    wobei das System dadurch gekennzeichnet ist, dass die ersten und zweiten Daten eine Rasterstruktur haben, die in einem ersten Teil mindestens einen Wert mindestens eines Funktionsparameters mindestens eines Organs eines Fahrzeugs und einen zweiten Teil umfassen, der eine Vordiagnose umfasst, die dem mindestens einen Wert des ersten Rasterteils zugeordnet ist.
  2. System nach Anspruch 1, wobei das Untermodul (132) konfiguriert ist, um für eine vorprogrammierte Gruppe von Parametern, deren Werte am Ausgang der Verwaltungsmittel (3i1) von dem Controller (110) gemäß der Struktur des ersten Rasterteils zusammengeführt sind, ein Programm einer ersten Suche der zusammengeführten Werte in dem ersten Aufbewahrungsspeicher durchzuführen, dann für: i) im Fall einer positiven Suche der ersten Suche, die entsprechende ausgegebene Vordiagnose auf einem Bildschirm in dem Fahrgastraum anzuzeigen, ii) im Fall einer negativen Suche der ersten Suche, von dem Untermodul (134) ein identisches Programm in dem zweiten Speicher ausführen zu lassen, um im Fall einer positiven Suche der zweiten Suche, die entsprechende Vordiagnose am Ausgang auf dem Bildschirm anzuzeigen und das entsprechende Raster in den ersten Speicher einzutragen.
  3. System nach einem der Ansprüche 1 bis 2, wobei, wenn eine Funktionsvariable des Fahrzeugs abzuweichen und eine Alarmschwelle zu überschreiten beginnt, dies an Bord diagnostiziert wird, um eine Alarmmeldung für den Hersteller und dann, nach Verarbeitung, für den Kraftfahrer auszulösen.
  4. System nach einem der Ansprüche 1 bis 3, wobei die Verwaltungsmittel (3i1) auf die Anfragen des Controllers (110) der Verwaltungsmittel antworten und bei Fehlfunktionen Alarmmeldungen senden.
  5. System nach einem der Ansprüche 1 bis 4, wobei jedes gespeicherte Raster die in einer einzigen Fehlfunktion implizierten Daten zuordnet, was Gegenstand einer einzigen Diagnose sein kann.
  6. System nach Anspruch 5, wobei jedes gespeicherte Raster die in einer einzigen Fehlfunktion implizierten Daten zuordnet, was Gegenstand einer einzigen Diagnose sein kann.
  7. System nach einem der Ansprüche 1 bis 6, wobei die zentrale Verwaltungseinheit (100) ein Modul (120) für die Suche in den Speichermitteln (200) aufweist, um Raster zu extrahieren, die die Diagnosedaten enthalten, die Gegenstand einer von einem Verwaltungsmittel (3i1) gesendeten Alarmmeldung waren.
  8. System nach einem der Ansprüche 1 bis 7, wobei die zentrale Verwaltungseinheit (100) ein Modul (134) zur externen Abfrage aufweist, um die feste Diagnosestation abzufragen und dort Raster zu extrahieren, die mindestens die Diagnosedaten enthalten, die Gegenstand von Alarmmeldungen waren, die von mindestens einem Verwaltungsmittel (3i1) gesendet wurden.
  9. System nach einem der Ansprüche 1 bis 8, wobei die zentrale Verwaltungseinheit (100) ein Modul (160) für die Aktualisierung der Speichermittel (200) aufweist, um dort die Raster zu speichern, die die Diagnosedaten enthalten, mit denen eine Diagnose der Funktion des Fahrzeugs erstellt wurde.
  10. System nach einem der Ansprüche 1 bis 9, das an Bord eines Fahrzeugs installiert ist und einen Teil des Systems nach einem der Ansprüche 1 und 2 darstellt.
  11. System nach einem der Ansprüche 1 oder 2, wobei eine Downloadfunktion von Softwareprogrammen von einem Server (31) vorgesehen ist, um die Softwareprogramme der ECU-Rechner (3i0) zu ändern, die die Aufzeichnung von Diagnosedaten steuern.
  12. System nach einem der Ansprüche 1 oder 2, wobei die zentrale Diagnoseverwaltungseinheit (100) mehrere Untergruppen aufweist, die ausgebildet sind, um untereinander zu kommunizieren und für die Durchführung der Diagnose zusammenzuarbeiten.
EP20040817221 2003-10-14 2004-10-13 System zur prädiktiven diagnose von fehlern an einem kraftfahrzeug und onboard-diagnoseeinrichtung dafür Expired - Fee Related EP1673733B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0312004A FR2860895B1 (fr) 2003-10-14 2003-10-14 Systeme de diagnostic predictif des dysfonctionnements d'un vehicule automobile et son dispositif de diagnostic embarque
PCT/FR2004/002592 WO2005038725A1 (fr) 2003-10-14 2004-10-13 Systeme de diagnostic predictif des dysfonctionnements d’un vehicule automobile et son dispositf de diagnostic embarque

Publications (3)

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EP1673733A1 EP1673733A1 (de) 2006-06-28
EP1673733B1 true EP1673733B1 (de) 2015-03-11
EP1673733B8 EP1673733B8 (de) 2015-05-13

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EP (1) EP1673733B8 (de)
ES (1) ES2534852T3 (de)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012202540A1 (de) * 2012-02-20 2013-08-22 Robert Bosch Gmbh Diagnoseverfahren und Diagnosevorrichtung für eine Fahrzeugkomponente eines Fahrzeugs
CN107271163B (zh) * 2017-06-16 2018-09-28 英特尔产品（成都）有限公司 用于冷却器的本地诊断和验证系统及方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313388A (en) 1991-06-07 1994-05-17 Ford Motor Company Method and apparatus for diagnosing engine and/or vehicle system faults based on vehicle operating or drive symptoms
US5442553A (en) * 1992-11-16 1995-08-15 Motorola Wireless motor vehicle diagnostic and software upgrade system
US6546363B1 (en) * 1994-02-15 2003-04-08 Leroy G. Hagenbuch Apparatus for tracking and recording vital signs and task-related information of a vehicle to identify operating patterns
FR2791158B1 (fr) 1999-03-19 2004-10-08 Sagem Dispositif d'aide au diagnostic d'un dysfonctionnement d'un vehicule automobile
CN1218537C (zh) * 2000-10-13 2005-09-07 帕克斯格里德遥测系统公司 将来自车辆的车辆运行数据传递到远程监视接收者的方法
JP3834463B2 (ja) * 2000-10-13 2006-10-18 株式会社日立製作所 車載故障警報通報システム
JP2002323409A (ja) * 2001-04-26 2002-11-08 Fuji Heavy Ind Ltd 車両管理システム
JP2003044704A (ja) * 2001-07-31 2003-02-14 Honda Motor Co Ltd サービス提供方法
US20030130774A1 (en) * 2002-01-03 2003-07-10 Tripathi Pradeep R. Vehicle inspection enforcement system and method offering multiple data transmissions on the road

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Publication number Publication date
WO2005038725A1 (fr) 2005-04-28
EP1673733B8 (de) 2015-05-13
ES2534852T3 (es) 2015-04-29
FR2860895A1 (fr) 2005-04-15
FR2860895B1 (fr) 2006-05-12
EP1673733A1 (de) 2006-06-28

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