EP2884465B1 - Procédé de modification d'un diagnostic embarqué d'un véhicule - Google Patents

Procédé de modification d'un diagnostic embarqué d'un véhicule Download PDF

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Publication number
EP2884465B1
EP2884465B1 EP14196905.5A EP14196905A EP2884465B1 EP 2884465 B1 EP2884465 B1 EP 2884465B1 EP 14196905 A EP14196905 A EP 14196905A EP 2884465 B1 EP2884465 B1 EP 2884465B1
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EP
European Patent Office
Prior art keywords
vehicle
comparison
board diagnosis
server
board
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EP14196905.5A
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German (de)
English (en)
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EP2884465A1 (fr
Inventor
Ipek Sarac
Walter Lehle
Bernd Kohler
Heiko Lenhardt
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of EP2884465A1 publication Critical patent/EP2884465A1/fr
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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
    • G07C5/0808—Diagnosing performance data

Definitions

  • the present invention relates to a method for modifying an on-board diagnosis of a vehicle.
  • On-board diagnostics are used in vehicles to check whether components of the vehicle are working correctly and to detect errors in the vehicle or in the components of the vehicle at an early stage. On-board diagnostics are carried out while the vehicle is running. As soon as a certain triggering condition of the vehicle is fulfilled, the on-board diagnosis is triggered and carried out. In the course of on-board diagnostics, errors are recognized early, which lead to increased emissions from the vehicle.
  • the trigger condition is usually determined and set in a manufacturing process, for example in a calibration phase.
  • on-board diagnostics can only be carried out reliably and meaningfully at certain operating points of the vehicle, as in US 2006/0085153 , WO 2004/049161 or DE 102 35 525 disclosed.
  • a frequency with which the on-board diagnosis is carried out can depend on the driving style of a driver of the vehicle and / or the typical area of application of the vehicle, as in FIG DE 44 41 101 disclosed. For example, if the vehicle is mostly used only in city traffic, certain operating points that can only be reached while driving on a motorway can hardly be reached, or only rarely. A corresponding trigger condition therefore hardly occurs either only rarely and a corresponding on-board diagnosis is carried out only with a very low frequency.
  • the method according to the invention is suitable for all types of vehicles, in particular motor vehicles or commercial vehicles.
  • the invention is also suitable for air and / or water vehicles or railways.
  • on-board diagnoses of several comparison vehicles are used in the sense of the invention and compared with the on-board diagnosis of the vehicle.
  • the vehicle and the comparison vehicles are in particular of the same vehicle type.
  • the vehicle and the comparison vehicles preferably have the same version of software and / or hardware.
  • on-board diagnoses of vehicles of the same vehicle type with the same hardware and software versions are compared with one another in order to be able to make representative statements.
  • the software is to be understood in particular as operating software of a control device.
  • Modern vehicles can be connected to a central computer or a server outside the vehicle.
  • the vehicle can normally transmit data to the server, which are collected in the server and individual components document the vehicle.
  • the data collected can, for example, be used in the course of maintenance work to replace defective or faulty components or to carry out readjustments.
  • the vehicle now transmits data relating to the on-board diagnosis to the server.
  • This transmission can in particular be carried out wirelessly, for example via a communication interface between the vehicle and the server.
  • Each vehicle has an individual identification (ID).
  • ID The transmitted data is stored on the server under this individual ID.
  • the comparison vehicles also transmit data relating to their on-board diagnosis to the server and are also stored there under their individual ID.
  • the data of the vehicle and the comparison vehicles are compared with one another in the server.
  • statistical models can be created or other appropriate statistical methods can be used. It can thus be determined, for example, which of the comparison vehicles is most efficiently and most representative of the on-board diagnosis.
  • the on-board diagnosis of the vehicle therefore does not meet the specific requirements or the on-board diagnosis of the vehicle is carried out less or less frequently than the on-board diagnoses of the other comparison vehicles, the on-board diagnosis of the vehicle is modified.
  • the data of the on-board diagnostics of the other comparison vehicles are used in order to modify and thus improve the on-board diagnostics of the vehicle.
  • the on-board diagnosis for all vehicles of the same vehicle type can be improved by the invention.
  • the data stored in the server of the individual comparison vehicles, in particular of the same vehicle type can be used to determine modifications which improve the on-board diagnosis for all vehicles of the same vehicle type.
  • an improved triggering condition, an improved on-board diagnosis and / or an improved version of the software of the vehicle, in particular the operating software of the control device of the vehicle can be determined in the course of the invention.
  • the triggering condition of the on-board diagnosis is advantageously changed in the course of the modification of the on-board diagnosis of the vehicle.
  • the trigger condition is a specific operating point of the vehicle or a specific engine operating point of an engine of the vehicle.
  • the data of the on-board diagnoses are compared with one another, in particular as a function of specific operating parameters of the vehicle or of the comparison vehicles. If the vehicle is operated under these specific operating parameters and the on-board diagnosis does not meet the requirements, the triggering condition of the vehicle is changed in particular in accordance with a triggering condition of one of the comparison vehicles.
  • This comparison vehicle is operated, in particular, under the same or similar operating parameters, but its on-board diagnosis does meet the requirements.
  • the best possible triggering condition can thus be determined and set for the vehicle, in particular as a function of the determined operating parameters of the vehicle.
  • Such a specific operating parameter of the vehicle is in particular the typical area of application of the vehicle.
  • the trigger condition may only be rarely reached and the on-board diagnosis is rarely carried out. If the comparison shows that one of the comparison vehicles is also operated in this specific operating parameter, that is, typically in city traffic, and if the on-board diagnosis of this comparison vehicle satisfies the requirements, the triggering condition of the vehicle is changed in accordance with the triggering condition of the comparison vehicle. In particular, the triggering condition of the comparison vehicle is adopted for the vehicle.
  • a new version of the software in particular the operating software of the control device of the vehicle, can also be installed in the course of the modification of the on-board diagnosis of the vehicle.
  • this new version of the software already includes a changed, improved trigger condition.
  • data relating to a driving style of a driver of the vehicle are transmitted from the vehicle to the server. Since the occurrence of the triggering condition depends on the driving style of the driver of the vehicle, it is particularly advisable to compare the data of the on-board diagnostics as a function of the driving style of the driver of the vehicle or of the comparison vehicles in the course of the comparison.
  • the driver's driving style is a specific operating parameter of the vehicle or of the comparison vehicles.
  • driver profiles for each driver are created in the vehicle or in the comparison vehicles. If the respective driver uses the vehicle or comparison vehicle, the associated driver profile is selected. The driver can create or select the driver profile himself or the driver profile is automatically created or selected by the vehicle or the comparison vehicle. Automatic creation or selection of the driver profile can be carried out, for example, by means of voice recognition and / or facial recognition of the driver and / or by recognizing the height and position of the driver's seat.
  • incorrect diagnoses of the on-board diagnosis of the vehicle are preferably determined in the server.
  • Misdiagnoses include both a false existence, in which an error is not diagnosed in the course of the on-board diagnosis, and a wrong diagnosis, in which an error is diagnosed in the course of the on-board diagnosis that did not occur .
  • Such misdiagnoses determine in particular a quality of the on-board diagnosis of the vehicle.
  • the requirement that the on-board diagnosis must meet is that as few incorrect diagnoses as possible are carried out or that only a certain (percentage) of incorrect diagnoses is carried out. Accordingly, it can be assessed in the course of the comparison whether the on-board diagnosis of the vehicle is carried out better or worse or just as well as the on-board diagnosis of the other comparison vehicles if the (percentage) proportion of incorrect diagnoses of the vehicle is lower or higher or the same size as in the comparison vehicles.
  • a frequency with which the on-board diagnosis of the vehicle is carried out is determined in the course of the comparison.
  • the on-board diagnosis should be carried out with the greatest possible frequency, that is to say in the shortest possible time intervals, while the vehicle is in operation.
  • the triggering condition may only rarely be achieved, in particular due to the driving style of the driver and / or the area in which the vehicle is used. If this frequency is comparatively low, misdiagnoses are more important. With a comparatively low frequency, misdiagnoses can therefore lead to a high (percentage) of misdiagnoses, which in turn leads to poor quality of the on-board diagnostics.
  • the frequency therefore also determines the quality of the on-board diagnosis.
  • the frequency with which the on-board diagnosis of the vehicle is carried out is therefore treated with particular importance.
  • the modification of the on-board diagnosis of the vehicle is carried out in such a way that the frequency with which the on-board diagnosis of the vehicle is carried out is increased. This ensures that the components of the vehicle are checked for errors as often as possible.
  • the modification is carried out in such a way that the quality of the on-board diagnosis is increased as a function of the frequency. This ensures in particular that if the frequency cannot be increased, at least the quality and thus the reliability and representativeness of the on-board diagnosis is increased. In particular, this means that the (percentage) of misdiagnoses is reduced.
  • a computing unit according to the invention e.g. a control unit of a motor vehicle is, in particular in terms of programming, set up to carry out a method according to the invention.
  • Suitable data carriers for the provision of the computer program are, in particular, hard drives, flash memory, EEPROMs, CD-ROMs, DVDs etc. It is also possible to download a program via computer networks (internet, intranet, etc.).
  • FIG. 1 a vehicle is schematically shown, which is set up to carry out a preferred embodiment of a method according to the invention.
  • the vehicle is designed as a motor vehicle 100.
  • the motor vehicle 100 has a control unit 110.
  • Control unit 110 is set up to carry out on-board diagnosis of motor vehicle 100.
  • the control device 110 has a transmitter 120, via which the control device 110 is in radio communication with a server 150.
  • Control unit 110 wirelessly transmits data relating to the on-board diagnostics carried out to server 150 via transmitter 120, indicated by reference number 130. Furthermore, control unit 110 transmits a driver profile to server 150.
  • the driver profile characterizes the Driving style of the current driver of the motor vehicle 100.
  • Comparative vehicles which are motor vehicles of the same vehicle type as motor vehicle 100 and have the same versions of hardware and software as motor vehicle 100, are shown in FIG Figure 1 illustrated by way of example and designated 100a, 100b and 100c.
  • the comparison vehicles 100a, 100b and 100c each likewise have a control unit 110a, 110b and 110c, which are each set up to carry out on-board diagnosis of the respective comparison vehicle 100a, 100b or 100c.
  • the control devices 110a, 110b or 110c each likewise transmit data relating to the respective on-board diagnoses carried out and corresponding driver profiles to the server 150, indicated by the reference symbols 130a, 130b and 130c.
  • the data relating to the on-board diagnoses of the respective motor vehicles 100, 100a, 100b and 100c are stored in the server 150 under an ID which uniquely identifies the respective motor vehicle 100, 100a, 100b and 100c.
  • the transmitted data of the motor vehicles motor vehicles 100, 100a, 100b and 100c are evaluated in the server 150.
  • the data transmitted by the motor vehicle 100 are compared in the server 150 with the data transmitted by the comparison vehicles 100a, 100b and 100c, in particular by means of expedient statistical models. Based on this comparison, the server 150 carries out a modification of the on-board diagnosis of the motor vehicle 100, likewise via the radio connection.
  • the motor vehicle 100, the comparison vehicles 100a, 100b and 100c, and the server 150 are accordingly set up to carry out a preferred embodiment of a method according to the invention.
  • a preferred embodiment of a method according to the invention is shown in Figure 2 shown schematically as a block diagram and is described below with reference to FIG Figure 1 and Figure 2 described in detail.
  • step 201 it is checked in the control unit 110 of the motor vehicle 100 whether a triggering condition has been reached.
  • This trigger condition is in particular a specific operating point of an engine of motor vehicle 100.
  • control unit 110 carries out an on-board diagnosis of the motor vehicle 100 in step 202. After performing the on-board diagnosis Control unit 110 of motor vehicle 100 again checks whether the triggering condition has been reached, indicated by reference symbol 202b.
  • control unit 110 transmits data relating to the on-board diagnosis of the motor vehicle 100 that has just been carried out via the transmitter 120 to the server 150 by means of the radio link. Furthermore, the control unit 110 transmits the driver profile, which represents the driving style of the current driver of the motor vehicle 100 characterized.
  • Steps 201, 202, 202b and 203 are carried out by control unit 110 of motor vehicle 100, in Figure 2 indicated by the dashed box and the reference symbol 110.
  • the transmission of the data and the driver profile to the server 150 is shown in FIG Figure 2 , analogous to Figure 1 , designated by the reference numeral 130.
  • step 204 the transmitted data are stored and evaluated in the server 150 under the corresponding ID of the motor vehicle 100. It is determined in particular whether a misdiagnosis was carried out in the course of the on-board diagnosis of the motor vehicle 100. Furthermore, a frequency with which the on-board diagnosis is carried out by the control device 110 is determined in particular (data relating to the on-board diagnosis was transmitted from the control device 110 to the server 150 at earlier times in order to determine the frequency ). A quality of the on-board diagnosis of the motor vehicle 100 is determined as a function of the determined frequency and of any incorrect diagnoses as well as of the driving style.
  • step 205 the evaluated data of motor vehicle 100 are compared with evaluated data of comparison vehicles 100a, 100b and 100c, in particular by means of appropriate statistical models. In particular, it is checked whether the quality of the on-board diagnosis of the motor vehicle 100 meets certain requirements.
  • the comparison vehicles 100a, 100b and 100c or their control units 110a, 110b and 110c have, analogously to the motor vehicle 100, transmitted data regarding their on-board diagnosis to the server at earlier times. This transmission of the data is in Figure 2 , analogous to Figure 1 , indicated with the reference numerals 130a, 130b and 130c. These data of the comparison vehicles 100a, 100b and 100c were also stored and evaluated in the server 150 under an ID corresponding to the comparison vehicles 100a, 100b and 100c, analogously to step 204.
  • This requirement includes, in particular, that the on-board diagnosis of the motor vehicle 100 is carried out with a specific frequency and / or that a (percentage) proportion of incorrect diagnoses does not exceed a specific value.
  • the quality of the on-board diagnosis of the motor vehicle 100 satisfies the specific requirements, no further measure is taken. However, if the quality of the on-board diagnosis of the motor vehicle 100 does not meet the specific requirements, a modification of the on-board diagnosis of the vehicle 100 is carried out in steps 206 and 206b. In particular, the trigger condition is changed in step 206. The server 150 transmits this changed triggering condition via the radio link to the control unit 110 of the motor vehicle 100, indicated by reference number 206b. The previous trigger condition is thus replaced by the changed trigger condition.
  • Steps 204, 205 and 206 are performed by server 150 in FIG Figure 2 indicated by the dashed box and the reference numeral 150.
  • a check is carried out in step 205 as to whether the quality of the on-board diagnosis of the vehicle 100 is dependent on the frequency based on the driving style of the driver Requirements are sufficient. It is checked in particular whether the on-board diagnosis of the vehicle 100 is carried out frequently enough due to the driving style of the driver. A minimum value for the frequency is accordingly determined as a requirement.
  • the on-board diagnosis cannot be carried out frequently enough, for example, if the driver operates the motor vehicle 100 in such a way that the specific operating points of the engine as a trigger condition are not reached. This can also be the case if the driver operates the motor vehicle 100 only in a specific area of use, such as city traffic.
  • the server 150 can therefore determine a different operating point as a trigger condition in step 206.
  • This changed triggering condition is determined in particular with the aid of the data from the comparison vehicles 100a, 100b and / or 100c.
  • a trigger condition of a comparison vehicle is adopted, the driver of which has a driving style similar to that of the driver of motor vehicle 100, but whose on-board diagnosis satisfies the requirements.
  • a warning message can be output to the driver of motor vehicle 100 in step 206 or 206b as a modification of the on-board diagnosis.
  • the warning message can in particular instruct the driver to change the area of application of motor vehicle 100 and to operate motor vehicle 100, for example, on a motorway.
  • step 205 it is checked in step 205 whether the quality of the on-board diagnoses of the motor vehicle 100, as well as of the comparison vehicles 100a, 100b and 100c, deteriorates over time as a function of the respective frequency.
  • This can be related, for example, to wear of individual components of the motor vehicle and the comparison vehicles.
  • the corresponding components can wear out in a similar, comparable manner for all motor vehicles of the same motor vehicle type.
  • such a deterioration in the quality of the on-board diagnostics of the motor vehicle means 100 and the comparison vehicles 100a, 100b and 100c a change in tolerances of the triggering condition of the motor vehicle 100 and the comparison vehicles 100a, 100b and 100c.
  • the server 150 can therefore determine a different operating point as a trigger condition in step 206.
  • the trigger condition is accordingly changed depending on the wear or the change in the tolerances.
  • the server 150 changes the triggering conditions of the motor vehicle 100 and the comparison vehicles 100a, 100b and 100c.
  • step 205 it is checked in step 205 whether the quality of the on-board diagnosis of the motor vehicle 100, depending on the frequency, meets certain requirements based on the environmental conditions.
  • the frequency is determined in particular as a requirement. If the on-board diagnosis cannot be carried out frequently enough or not at all due to environmental conditions, for example due to an altitude of the motor vehicle 100 or because a temperature is too high or too low, the server 150 changes the operating point in step 206 and thus the operating point Trigger condition depending on these environmental conditions as a modification of the on-board diagnosis.
  • This changed triggering condition is determined in particular with the aid of the data from the comparison vehicles 100a, 100b and / or 100c.
  • a triggering condition of a comparison vehicle is used, which is operated under similar environmental conditions, but whose on-board diagnosis meets the requirements.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Claims (5)

  1. Procédé de modification d'un diagnostic embarqué d'un véhicule (100) qui comporte un appareil de commande (110),
    - dans lequel l'appareil de commande vérifie si une condition de déclenchement déterminée est atteinte et, si une condition de déclenchement déterminée (201) se produit, exécute (202) un diagnostic embarqué de composants du véhicule (100),
    dans lequel
    - des données relatives au diagnostic embarqué sont transmises (203) par le véhicule (100) à un serveur (150),
    - lesdites données transmises sont comparées (205) dans le serveur (150) à des données relatives à des diagnostics embarqués, qui ont été transmises par des véhicules de comparaison (100a, 100b, 100c) et,
    - sur la base de ladite comparaison, une modification du diagnostic embarqué du véhicule (100) est effectuée (206, 206b), caractérisé
    - en ce que des données relatives au style de conduite d'un conducteur du véhicule (100) sont transmises par le véhicule (100) au serveur (150),
    - en ce que, lors de la comparaison effectuée dans le serveur (150), une fréquence avec laquelle le diagnostic embarqué est effectué par l'appareil de commande (110) est déterminée,
    - en ce que, lors de la comparaison effectuée dans le serveur, une qualité de diagnostic embarqué du véhicule (100) est déterminée en fonction de la fréquence déterminée ainsi que du style de conduite,
    - en ce que, lors de la comparaison effectuée dans le serveur, il est vérifié si la qualité déterminée du diagnostic embarqué du véhicule automobile (100) satisfait à une exigence déterminée, dans lequel l'exigence détermine une valeur minimale pour la fréquence sur la base du style de conduite,
    - en ce que, lors de la comparaison, si la qualité du diagnostic embarqué ne satisfait pas à l'exigence déterminée, la condition de déclenchement du diagnostic embarqué est modifiée par le serveur à l'aide des données des véhicules de comparaison, dans lequel une condition de déclenchement d'un véhicule de comparaison dont le conducteur a un style de conduite semblable à celui du conducteur du véhicule automobile (100) mais dont le diagnostic embarqué satisfait à l'exigence, est adoptée,
    - en ce que le serveur transmet ladite condition de déclenchement modifiée à l'appareil de commande, où la condition de déclenchement précédente est remplacée.
  2. Procédé selon l'une des revendications précédentes, dans lequel, lors de la comparaison effectuée dans le serveur (150), des diagnostics erronés du diagnostic embarqué du véhicule (100) sont déterminés (204).
  3. Procédé selon l'une des revendications précédentes, dans lequel, lors de la comparaison effectuée dans le serveur (150), il est vérifié si la qualité des diagnostics embarqués du véhicule (100) et des véhicules de comparaison (100a, 100b, 100c) se dégrade (205) en fonction de la fréquence.
  4. Procédé selon l'une des revendications précédentes, dans lequel, lors de la comparaison effectuée dans le serveur (150), il est vérifié si la qualité du diagnostic embarqué du véhicule (100) satisfait (205) à des exigences déterminées sur la base des conditions d'environnement en fonction de la fréquence.
  5. Procédé selon l'une des revendications précédentes, dans lequel le véhicule (100) et les véhicules de comparaison (100a, 100b, 100c) comportent la même version d'un logiciel et/ou d'un matériel.
EP14196905.5A 2013-12-12 2014-12-09 Procédé de modification d'un diagnostic embarqué d'un véhicule Active EP2884465B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013225717.1A DE102013225717B4 (de) 2013-12-12 2013-12-12 Verfahren zur Modifikation einer On-Board-Diagnose eines Fahrzeugs

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EP2884465A1 EP2884465A1 (fr) 2015-06-17
EP2884465B1 true EP2884465B1 (fr) 2020-07-08

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US9846978B1 (en) 2016-06-15 2017-12-19 Ford Global Technologies, Llc Remaining useful life estimation of vehicle component
DE102017210977A1 (de) 2017-06-28 2019-01-03 Robert Bosch Gmbh Verdichtermaschine
DE102018222659A1 (de) * 2018-12-20 2020-06-25 Robert Bosch Gmbh Verfahren zur Diagnose einer Sicherheitskomponente in einem Kraftfahrzeug
DE102019106771A1 (de) * 2019-03-18 2020-09-24 Bayerische Motoren Werke Aktiengesellschaft Verfahren und System zur On-Board-Diagnose in einem Fahrzeug

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DE102013225717A1 (de) 2015-06-18
DE102013225717B4 (de) 2018-07-26

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