EP2884465A1 - 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
EP2884465A1
EP2884465A1 EP14196905.5A EP14196905A EP2884465A1 EP 2884465 A1 EP2884465 A1 EP 2884465A1 EP 14196905 A EP14196905 A EP 14196905A EP 2884465 A1 EP2884465 A1 EP 2884465A1
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EP
European Patent Office
Prior art keywords
vehicle
board
comparison
server
board diagnosis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14196905.5A
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German (de)
English (en)
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EP2884465B1 (fr
Inventor
Ipek Sarac
Walter Lehle
Bernd Kohler
Heiko Lenhardt
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.)
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 verify that components of the vehicle are working correctly and to detect faults in the vehicle or components of the vehicle at an early stage. On-board diagnostics are performed while the vehicle is in operation. Once a particular trip condition of the vehicle is met, on-board diagnostics will be triggered and executed. In the course of an on-board diagnosis, faults which lead to increased emissions of the vehicle are detected in particular at an early stage.
  • the triggering condition is usually determined and set in a manufacturing process, for example in a calibration phase.
  • on-board diagnostics can only be performed reliably and meaningfully in certain operating points of the vehicle.
  • a frequency with which the on-board diagnosis is carried out may depend on the driving style of a driver of the vehicle and / or the typical operational area of the vehicle. If, for example, the vehicle is mostly used only in city traffic, certain operating points that can only be achieved when driving on a motorway can rarely or only rarely be reached. A corresponding trigger condition thus hardly occurs or Only rarely, and a corresponding on-board diagnosis is performed only at 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 equally suitable for air and / or water vehicles or railways.
  • on-board diagnoses of a plurality of comparison vehicles are used 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 diagnostics of vehicles of the same vehicle type are compared with the same hardware and software versions in order to make representative statements.
  • Under the software is in particular an operating software of a control unit to understand.
  • Modern vehicles may be in connection with 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 collected data can, for example, be used in the course of maintenance work in order to replace defective or faulty components or to perform readjustments.
  • the vehicle now transmits data relating to the on-board diagnosis to the server.
  • This transmission can be carried out in particular wirelessly, for example via a communication interface between the vehicle and the server.
  • Each vehicle has an individual identification (ID). This individual ID stores the transmitted data on the server.
  • the comparison vehicles also transmit data regarding their on-board diagnostics to the server and are also stored there under their individual ID.
  • the data of the vehicle and the comparison vehicles are compared with each other in the server.
  • statistical models can be created or other appropriate methods of statistics can be used.
  • it can be determined in which of the comparison vehicles the on-board diagnosis is performed most efficiently and most representative.
  • the comparison of the data relating to the on-board diagnosis of the vehicle according to the invention thus particularly assesses whether the on-board diagnosis of the vehicle is better, worse or just as good or more frequent, less frequent or just as often as the on-board diagnoses the other comparison vehicles is performed. In particular, this comparison assesses whether the on-board diagnosis of the vehicle meets certain requirements or specific quality requirements.
  • the on-board diagnosis of the vehicle does not meet the specific requirements or the on-board diagnosis of the vehicle is performed worse or less frequently than the on-board diagnoses the other comparison vehicles, the on-board diagnosis of the vehicle is modified.
  • the data of the on-board diagnoses of the other comparison vehicles are used to modify the on-board diagnosis of the vehicle and thus to improve.
  • the on-board diagnosis for all vehicles of the same vehicle type can be improved by the invention.
  • modifications can be determined 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 unit of the vehicle can be determined.
  • the triggering condition of the on-board diagnosis is changed.
  • the triggering 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 modified in particular according to 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 meets the requirements, however.
  • the best possible deployment condition can be determined and adjusted for the vehicle, in particular depending on the particular operating parameters of the vehicle.
  • Such a specific operating parameter of the vehicle is in particular the typical application of the vehicle.
  • a new version of the software in particular the operating software of the control unit of the vehicle can be installed.
  • this version of the software already includes a modified, improved triggering condition.
  • the vehicle transmits data relating to a driving style of a driver of 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 appropriate to compare the data of the on-board diagnoses depending on the driving style of the driver of the vehicle or the comparison vehicles in the course of the comparison.
  • the driving style of the driver in this case is a certain operating parameter of the vehicle or of the comparison vehicles.
  • driver profiles are created for each driver in the vehicle or in the comparison vehicles. If the respective driver uses the vehicle or reference vehicle, the associated driver profile is selected. In this case, the driver himself can create or select the driver profile or the driver profile is automatically created or selected by the vehicle or the reference vehicle.
  • An automatic application or selection of the driver profile can be carried out, for example, by means of speech recognition and / or facial recognition of the driver and / or by detecting the height and position of the driver's seat.
  • misdiagnosis of the on-board diagnosis of the vehicle is preferably determined in the server.
  • Misdiagnosis includes both a false existence, in which an error is not diagnosed in the course of the on-board diagnosis, as well as a false diagnosis in which in the course of the on-board diagnosis, an error is diagnosed, which has not occurred ,
  • Such misdiagnoses in particular determine a quality of the on-board diagnosis of the vehicle.
  • the requirement which must satisfy the on-board diagnosis is that as few misdiagnoses as possible are carried out or that only a certain (percentage) proportion of misdiagnosis is carried out. Accordingly, in the course of the comparison, it can be judged whether the on-board diagnosis of the vehicle is performed better or worse than the on-board diagnoses of the other comparison vehicles when the (percentage) proportion of misdiagnosis 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.
  • the on-board diagnosis should be carried out during operation of the vehicle with the greatest possible frequency, ie in the shortest possible time intervals.
  • the triggering condition may possibly only rarely be achieved, in particular due to the driving style of the driver and / or the field of use of the vehicle. If this frequency is comparatively low, misdiagnoses are more significant. With a comparatively low frequency, misdiagnosis can thus lead to a high (percentage) proportion of misdiagnoses, which in turn leads to a poor quality of the on-board diagnosis.
  • the frequency therefore also determines the quality of the on-board diagnosis. In the course of the comparison, therefore, the frequency with which the on-board diagnosis of the vehicle is carried out is treated with particular importance.
  • the modification of the on-board diagnosis of the vehicle is made such that the frequency with which the on-board diagnosis of the vehicle is performed 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. In particular, it is ensured that, if the frequency can not be increased, at least the quality and thus the reliability and representativeness of the on-board diagnosis is increased. In particular, this ensures that the (percentage) proportion of misdiagnoses is reduced.
  • An arithmetic unit according to the invention e.g. a control device of a motor vehicle is, in particular programmatically, configured to perform a method according to the invention.
  • Suitable data carriers for providing the computer program are in particular hard disks, flash memories, EEPROMs, CD-ROMs, DVDs and the like. It is also possible to download a program via computer networks (Internet, intranet, etc.).
  • FIG. 1 a vehicle is shown schematically, which is adapted to perform a preferred embodiment of a method according to the invention.
  • the vehicle is designed as a motor vehicle 100 in this particular example.
  • the motor vehicle 100 has a control unit 110.
  • the control unit 110 is configured to perform an on-board diagnosis of the motor vehicle 100.
  • the control unit 110 has a transmitter 120 via which the control unit 110 is in radio communication with a server 150.
  • the control unit 110 transmits via the transmitter 120 by means of the wireless connection data relating to the performed on-board diagnostics to the server 150, indicated by the reference numeral 130. Furthermore, the controller 110 transmits a driver profile to the server 150.
  • the driver profile characterizes the Driving style of the current driver of the motor vehicle 100.
  • Comparison vehicles which are vehicles of the same vehicle type as motor vehicle 100 and have the same versions of hardware and software as the motor vehicle 100, are shown in FIG. 1 exemplified and labeled 100a, 100b and 100c.
  • the comparison vehicles 100a, 100b and 100c likewise each have a control unit 110a, 110b or 110c, which are each set up to perform an on-board diagnosis of the respective comparison vehicle 100a, 100b or 100c.
  • the control units 110a, 110b and 110c Via a corresponding transmitter 120a, 120b or 120c, the control units 110a, 110b and 110c likewise respectively transmit data relating to the respective on-board diagnoses and corresponding driver profiles to the server 150, indicated by reference numbers 130a, 130b and 130c.
  • the data regarding the on-board diagnoses of the respective motor vehicles 100, 100a, 100b, and 100c are stored under an ID uniquely identifying the respective motor vehicle 100, 100a, 100b, and 100c.
  • the transmitted data of the motor vehicle motor vehicle 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 appropriate statistical models. Based on this comparison, the server 150 performs a modification of the on-board diagnostics of the motor vehicle 100, also via the radio link.
  • the motor vehicle 100, the comparison vehicles 100a, 100b and 100c, and the server 150 are accordingly adapted to carry out a preferred embodiment of a method according to the invention.
  • a preferred embodiment of a method according to the invention is in FIG. 2 is shown schematically as a block diagram and will be described below with reference to FIG FIG. 1 and FIG. 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 triggering condition is in particular a specific operating point of an engine of the motor vehicle 100.
  • control unit 110 performs an on-board diagnosis of the motor vehicle 100 in step 202. After carrying out the on-board diagnosis of the motor vehicle 100, the control unit 110 again checks whether the triggering condition is reached, indicated by reference numeral 202b.
  • control unit 110 transmits in step 203 data relating to the just performed on-board diagnosis of the motor vehicle 100 via the transmitter 120 by means of the radio link to the server 150. Furthermore, the control unit 110 transmits the driver profile, which is the driving style of the current driver of the motor vehicle 100 characterized.
  • Steps 201, 202, 202b and 203 are performed by the control unit 110 of the motor vehicle 100, in FIG FIG. 2 indicated by the dashed box and the reference numeral 110.
  • the transmission of the data and the driver profile to the server 150 is in FIG. 2 , analogous to FIG. 1 , designated by reference numeral 130.
  • step 204 the transmitted data is stored and evaluated in the server 150 under the corresponding ID of the motor vehicle 100. In particular, it is determined whether a misdiagnosis has been carried out in the course of the on-board diagnosis of the motor vehicle 100. Furthermore, in particular a frequency is determined with which the on-board diagnosis is carried out by the control unit 110 (for the determination of the frequency, data relating to the on-board diagnosis have already been transmitted by the control unit 110 to the server 150 at earlier times ). Depending on the determined frequency and possible misdiagnosis, as well as the driving style, a quality of the on-board diagnosis of the motor vehicle 100 is determined.
  • step 205 the evaluated data of the motor vehicle 100 are compared with evaluated data of the comparison vehicles 100a, 100b and 100c, in particular by means of appropriate statistical models. It is checked in particular whether the quality of the on-board diagnosis of the motor vehicle 100 meets certain requirements.
  • the comparison vehicles 100a, 100b and 100c and their control units 110a, 110b and 110c have, analogously to the motor vehicle 100, already transmitted data regarding their on-board diagnosis to the server at earlier times. This transmission of the data is in FIG. 2 , analogous to FIG. 1 , indicated by reference numerals 130a, 130b and 130c. These data of the comparison vehicles 100a, 100b and 100c have also been 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 comprises in particular that the on-board diagnosis of the motor vehicle 100 is carried out with a certain frequency and / or that a (percentage) proportion of misdiagnoses does not exceed a certain value.
  • the quality of the on-board diagnosis of the motor vehicle 100 meets the specific requirements, no further action is taken. However, if the quality of the on-board diagnosis of the motor vehicle 100 does not meet the specified requirements, a modification of the on-board diagnosis of the vehicle 100 is performed in steps 206 and 206b. In this case, the triggering condition is changed in step 206 in particular. 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 numeral 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 FIG. 2 indicated by the dashed box and the reference numeral 150.
  • the on-board diagnosis can not be carried out frequently enough, for example, if the driver operates the motor vehicle 100 in such a way that the specific operating point of the engine is not reached as a triggering condition. This may also be the case when the driver operates the motor vehicle 100 only in a specific application such as city traffic.
  • the server 150 may therefore determine a different operating point as a triggering condition in step 206.
  • This changed triggering condition is determined in particular with the aid of the data of the comparison vehicles 100a, 100b and / or 100c.
  • a triggering condition of a reference vehicle is assumed, whose driver has a similar driving style as the driver of the motor vehicle 100, but whose on-board diagnosis satisfies the requirements.
  • a warning message can be output to the driver of the motor vehicle 100 in step 206 or 206b as a modification of the on-board diagnosis.
  • the warning message may in particular instruct the driver to change the area of use of the motor vehicle 100 and to operate the 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 may for example be related 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 type of motor vehicle.
  • a deterioration in the quality of the on-board diagnostics of the motor vehicle 100 and the comparison vehicles 100a, 100b and 100c a change of tolerances of the triggering condition of the motor vehicle 100 and the comparison vehicles 100a, 100b and 100c.
  • the server 150 may therefore determine a different operating point as a triggering condition in step 206.
  • the triggering condition is accordingly changed as a function of the wear or the change in the tolerances.
  • the server 150 thereby changes the trigger 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 satisfies certain requirements as a function of the frequency due to environmental conditions. Again, in particular, the frequency is determined as a requirement. If on-board diagnostics can not be performed frequently enough or not at all because of environmental conditions, for example, due to a high altitude of the motor vehicle 100 or because a temperature is too high or too low, the server 150 changes the operating point, and thus the operating point, in step 206 Tripping 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 of the comparison vehicles 100a, 100b and / or 100c. In particular, while a trigger condition of a reference vehicle is taken, which is operated under similar environmental conditions, but the 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)
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 true EP2884465A1 (fr) 2015-06-17
EP2884465B1 EP2884465B1 (fr) 2020-07-08

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Cited By (4)

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US9846978B1 (en) 2016-06-15 2017-12-19 Ford Global Technologies, Llc Remaining useful life estimation of vehicle component
WO2020127239A1 (fr) * 2018-12-20 2020-06-25 Robert Bosch Gmbh Procédé de diagnostic d'un élément de sécurité dans un véhicule à moteur
CN113348123A (zh) * 2019-03-18 2021-09-03 宝马股份公司 用于车辆中的车载诊断的方法和系统
US11525449B2 (en) 2017-06-28 2022-12-13 Robert Bosch Gmbh Compressor with thermal expansion reducing structure

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DE102016006541B4 (de) * 2016-05-27 2019-02-07 Audi Ag Verfahren zum Ermitteln einer Empfehlung für ein anforderungsgerechtes Alternativfahrzeug und zum Übermitteln der Empfehlung an einen Fahrer eines aktuellen Fahrzeugs, Vorrichtung zum Durchführen des Verfahrens und Fahrzeug mit einer solchen Vorrichtung

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DE19959526A1 (de) * 1999-12-09 2001-06-13 Bosch Gmbh Robert Verfahren zum Erkennen von Fehlern eines Kraftfahrzeuges
DE10235525A1 (de) * 2001-09-10 2003-04-10 Daimler Chrysler Ag Verfahren und System zur Überwachung des Zustands eines Fahrzeugs
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Publication number Priority date Publication date Assignee Title
US9846978B1 (en) 2016-06-15 2017-12-19 Ford Global Technologies, Llc Remaining useful life estimation of vehicle component
US11525449B2 (en) 2017-06-28 2022-12-13 Robert Bosch Gmbh Compressor with thermal expansion reducing structure
WO2020127239A1 (fr) * 2018-12-20 2020-06-25 Robert Bosch Gmbh Procédé de diagnostic d'un élément de sécurité dans un véhicule à moteur
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CN113348123A (zh) * 2019-03-18 2021-09-03 宝马股份公司 用于车辆中的车载诊断的方法和系统

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DE102013225717A1 (de) 2015-06-18
EP2884465B1 (fr) 2020-07-08
DE102013225717B4 (de) 2018-07-26

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