EP2013060A1 - Systeme de diagnostic avec module de transmission wlan et test court de diagnostic mis en uvre - Google Patents

Systeme de diagnostic avec module de transmission wlan et test court de diagnostic mis en uvre

Info

Publication number
EP2013060A1
EP2013060A1 EP07723986A EP07723986A EP2013060A1 EP 2013060 A1 EP2013060 A1 EP 2013060A1 EP 07723986 A EP07723986 A EP 07723986A EP 07723986 A EP07723986 A EP 07723986A EP 2013060 A1 EP2013060 A1 EP 2013060A1
Authority
EP
European Patent Office
Prior art keywords
diagnostic
short test
transmission module
diagnostic system
test result
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.)
Withdrawn
Application number
EP07723986A
Other languages
German (de)
English (en)
Inventor
Martin Blanz
Thomas BÜCKLE
Gerald Grau
Ralf Lueg
Manuel Rieger
Markus Scholz
Ralf Traub
Klaus Weiss
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.)
Daimler AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP2013060A1 publication Critical patent/EP2013060A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G07C2205/00—Indexing scheme relating to group G07C5/00
    • G07C2205/02—Indexing scheme relating to group G07C5/00 using a vehicle scan tool

Definitions

  • the invention relates to a motor vehicle diagnostic system for determining, storing and transmitting diagnostic data from control units in a motor vehicle to a computer outside the motor vehicle.
  • the system consists of components that are inside the vehicle and those that are outside the vehicle.
  • diagnostic data is queried by onboard components and transmitted via a WLAN connection to the computer system of a service company.
  • the diagnostic data of the onboard components can be further processed.
  • Particular attention of the invention disclosed here lies in the support of the service employee in the vehicle reception of a service workshop.
  • a computer-assisted diagnostic system that generates a weighted list of possibly defective motor vehicle components with the aid of a diagnostic program from vehicle data and customer information is disclosed, for example, in German patent application DE 102005015664.
  • the identification of the possible error candidates takes place via an evaluation of a rule table reflecting the diagnostic knowledge. Due to the additional evaluation of potentially affected by the error candidates Vehicle features will expand the troubleshooting space.
  • the service technician can restrict troubleshooting to selected fault codes or functions by setting a focus within the determined troubleshooting space. Only the possible candidates for the selected error codes or functions will then be considered.
  • the error candidates belonging to this focus set are weighted by offsetting several error probabilities for error codes, components and affected functions.
  • Still known error images which are coupled error codes that always occur together, can be used for the billing.
  • an interactively operating diagnostic program in which the service technician, within a troubleshooting space initially defined by the diagnostic program, identifies the components or functions identified as possibly defective, a focus is set for the further, automated troubleshooting by the diagnostic program.
  • the focus can be set by restricting to an error code or by restricting to a function.
  • this diagnostic program it is also possible to include customer information on functioning and non-functioning subsystems in the diagnostic process.
  • the diagnostic program allows in particular the processing of only symptomatic known malfunctions, as is usually the case with customer complaint.
  • the solution succeeds mainly with a transmission module with integrated microcomputer and implemented diagnostic short test program.
  • the transmission module is connected to the diagnostic interface of the motor vehicle and then the diagnosis data from the control units in the vehicle are automatically called up and read out by the diagnostic short test program.
  • the result of this diagnostic short test is transmitted via a communication link from the transmission module to an external offboard diagnostic system and further processed by a further diagnostic program.
  • the result of this further processing is displayed on a computer system connected to the diagnostic system in the customer acceptance of a service company.
  • the advanced diagnostic algorithm in the form of a selection menu with an input mask brings the read-in short test result to the service employee Display of the computer system in the customer acceptance the individual error messages for display.
  • the service employee can then ask the driver in the customer acceptance for individual error messages for further information and enter the queried customer complaints as additional error symptoms for the selected error message in the advanced diagnostic system.
  • the diagnostic system from DE 102005015664 already mentioned in the introduction to the description can be used, provided that it is supplemented by the system components of the diagnostic short test disclosed here and by the readout and read-in possibilities of the result of the diagnostic short test from the transmission module. The customer complaints then flow into the further diagnostic process.
  • the transmission module can temporarily store the result of the diagnostic short test in a memory area in the module. After caching, the transmission module is subtracted from the diagnostic interface of the motor vehicle and connected with a data line to a computer system of the diagnostic system. After identification From the transmission module and the diagnostic system, the result of the diagnostic short test is read into the offboard diagnostic system and further processed. It will
  • This embodiment has the advantage that no wireless connection, e.g. A WLAN connection is required between the transmission module and the diagnostic system.
  • a WLAN Wireless Local Area Network
  • the result of the diagnostic short test is transmitted via the bus protocol of the WLAN interface and via the transmitting and receiving unit into a computing system of the offboard diagnostic system, which is also equipped for this purpose with a WLAN interface.
  • buffering of the diagnostic short test result may possibly be dispensed with.
  • the WLAN connection is preferably set up and produced by the transmission module on the vehicle to form a computing system in the customer reception of the service operation.
  • the connection establishment and the control and control of the data transmission takes place here automatically by the program module of the diagnostic short test after its connection to the diagnostic interface of the motor vehicle, without a service employee would have to give this control commands.
  • This embodiment has the advantage that the transmission module can remain on the vehicle and the data transmission is not accomplished by physical transport of the transmission module.
  • WLAN interface In place of the WLAN interface, other wireless communication links such as mobile or Bluetooth may be used to a limited extent. New Future wireless communication systems are also not excluded if they are suitable for data transmission and meet the telecommunications approval requirements.
  • the result of the diagnostic short test is initially stored in a storage medium on the transmission module and only after completion of the diagnostic short test, the diagnostic data, the short test result, transmitted via the WLAN interface to a WLAN interface of the Off diagnostic system and further processed there by the advanced diagnostic program ,
  • This variant has the advantage that the implementation of the diagnostic short test and the transfer of the
  • Short test result of the readiness to receive a WLAN receiving unit are largely independent. If the off-board diagnostic system is temporarily not ready for a data transmission, the data transmission of the buffered short-term result can be repeated at any number of later times.
  • FIG. 1 An embodiment of the diagnostic system according to the invention is shown in Fig. 1.
  • a motor vehicle electrical system several control units or microcontroller CUl, CU2, CU3, ... CUn are installed and take on different tasks and functions in the vehicle.
  • Each of these ECUs has a self-diagnostic routine that enables it to perform a self-test of its functions and to identify predefined errors and classify them with an error code. These possibly detected error codes are stored in fault memories in the electrical system.
  • the various control units are in communication with each other via at least one data bus.
  • the networking of the control devices with each other can also run on several different bus systems.
  • gateways which translate the different bus protocols.
  • About a diagnostic interface OBD can be accessed from the outside with a diagnostic tester on the communication network in the vehicle and thus on the connected Steuergräte and their error memory can be read.
  • the development of the invention consists in connecting a portable transmission module 1 with an integrated microcomputer system and with an implemented diagnostic short test program to the diagnostic interface of the motor vehicle electrical system.
  • This diagnostic short test includes the collection of the fault memory data and other vehicle data from the connected control units and geg.
  • the Mitprotokollieren error messages on the bus systems of the electrical system and in one embodiment, the caching of the collected diagnostic data in a suitable medium in the transmission module.
  • an identifier is temporarily stored for the time of the diagnostic short test.
  • the ignition After connection of the transmission module, the ignition remains switched on in the motor vehicle electrical system and the control units remain in the wake mode. Under this condition, after the connection module has been connected, the diagnostics short test can be started by the service technician who connects the transmission module by pressing a button. The diagnostic short test and the data transfer then run off automatically. It is also conceivable that in a further automated embodiment, the transmission module automatically detects its contact with a motor vehicle electrical system and automatically starts the diagnostic short test after detection of a connected motor vehicle electrical system.
  • the result of the diagnostic short test can be buffered on a storage medium of the transmission module.
  • the transmission module in the further diagnostic process is subtracted again from the diagnostic interface of the motor vehicle and brought to a computing system of the offboard diagnostic system.
  • the transmission module is connected to the computing system and the result of the diagnostic short test is read from the storage medium of the transmission module in the offboard diagnostic system and further processed by this.
  • a transmission and reception unit with associated transmission interface to WLAN (Wireless Local Area Network) base is integrated into the transmission module.
  • the data transmission then takes place wirelessly via an antenna 2 in or on the transmission module and a transmitting and receiving unit which is connected to the offboard diagnostic system connected is.
  • a storage medium can be provided in the transmission module, with which the result of the diagnostic short test is non-volatile buffered before a transmission of the short test result via the WLAN interface and the transmitting and receiving unit.
  • the offboard diagnostic system can be designed as a distributed system with distributed and networked hardware components and distributed and networked program modules.
  • a garage server 10 one or more computer systems 11 in the vehicle reception, and a plurality of diagnostic testers with which the detailed workshop diagnosis and service are finally performed. These three units are usually networked with each other.
  • the connection of the diagnostic short test carried out by means of a transmission module with an off-board diagnosis system and with a computer system in the customer acceptance enables, for example, a workflow in the customer reception, as shown in FIG.
  • the result of the onboard diagnostic short test is read into the computer system 11 installed in the customer acceptance and there already pre-processed by a program module of the diagnostic program running in the background.
  • the extent to which the short test result is processed depends on the actual offboard diagnostic system used.
  • the result of the short test with its error messages is displayed to the service employee.
  • a selection menu from which the service employee can select individual menu items, and can input to these selected menu items further machine-processable customer information, the he can ask from driver, if he gives the vehicle key in the customer acceptance.
  • the machinability of the customer information can hereby be secured by an input mask in that the offboard diagnostic program running in the background queries further environmental data in a menu for a selected reported error, for which the service employee fulfills the corresponding alternative during the customer survey or does not fulfill it in a selection menu can enter the system display.
  • One possibility for this is, for example, a selection of symptoms in which the customer information includes symptoms such as noises, functioning and non-functioning functions, odors, etc.
  • the information, symptoms and diagnostic data thus obtained are transmitted by the diagnostic program, e.g. run on a server 10, processed by evaluating an associated database 32 and / or given for further workshop diagnosis and repair on a diagnostic tester 30, which is connected to the diagnostic interface of the motor vehicle 35.
  • Targeted cause tests 33 can then be carried out with the tester and the further workshop process 34 generated from the test results.
  • the data of the diagnostic short test can be supplemented and enriched.
  • service data stored for the vehicle to be examined such as registration date, TÜV / AU dates or customer data
  • TÜV / AU dates or customer data can be called up and displayed in the customer acceptance on the local computer system. This enables the service employee in the customer acceptance better and targeted customer service.
  • Further processing of the data from the diagnostic short test is carried out by supplementing with the data for vehicle identification (FIN), mileage, tank level and maintenance already performed in the past.
  • the processed and supplemented data are then forwarded to the subsequent processes such as order creation, billing and detailed workshop diagnosis.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

La présente invention concerne un système de diagnostic de véhicule automobile pour la détermination, le stockage et la transmission de données de diagnostic provenant d'appareils de commande dans un véhicule automobile sur un ordinateur à l'extérieur du véhicule automobile. Le système est constitué de composants qui se trouvent à l'intérieur du véhicule automobile et de composants qui se trouvent à l'extérieur du véhicule automobile. A l'aide d'un module de transmission, dans lequel est mis en oevre le test court de diagnostic, des données de diagnostics de composants embarqués sont consultées et sont transmises par une connexion WLAN (réseau local sans fil) au système informatique d'une entreprise de service. A l'aide du système informatique, les données de diagnostic des composants embarqués peuvent être traitées. La caractéristique particulière de la présente invention divulguée réside dans l'assistance du collaborateur de service lors de réception d'un véhicule dans un atelier de service.
EP07723986A 2006-04-29 2007-04-04 Systeme de diagnostic avec module de transmission wlan et test court de diagnostic mis en uvre Withdrawn EP2013060A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006019972A DE102006019972A1 (de) 2006-04-29 2006-04-29 Diagnosesystem mit WLAN Übertragungsmodul und implementiertem Diagnosenkurztest
PCT/EP2007/003045 WO2007124839A1 (fr) 2006-04-29 2007-04-04 Systeme de diagnostic avec module de transmission wlan et test court de diagnostic mis en œuvre

Publications (1)

Publication Number Publication Date
EP2013060A1 true EP2013060A1 (fr) 2009-01-14

Family

ID=38080995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07723986A Withdrawn EP2013060A1 (fr) 2006-04-29 2007-04-04 Systeme de diagnostic avec module de transmission wlan et test court de diagnostic mis en uvre

Country Status (4)

Country Link
US (1) US20090204287A1 (fr)
EP (1) EP2013060A1 (fr)
DE (1) DE102006019972A1 (fr)
WO (1) WO2007124839A1 (fr)

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ES2536413T3 (es) * 2009-07-17 2015-05-25 Siemens Aktiengesellschaft Procedimiento para controlar un intercambio de datos entre un sistema de diagnóstico de vehículo y aparatos de control dispuestos en vehículos, programa de control y sistema de diagnóstico de vehículo
DE102009048617A1 (de) 2009-10-06 2010-06-17 Daimler Ag Diagnosesystem für Kraftfahrzeuge
ITBO20110063A1 (it) * 2011-02-15 2012-08-16 Ferrari Spa Metodo e sistema di diagnosi di un veicolo stradale provvisto di una unita' di controllo di bordo
US20140257627A1 (en) * 2013-03-11 2014-09-11 Ford Global Technologies, Llc Potential chassis damage identification and notification system
CN103217969B (zh) * 2013-03-28 2016-04-20 华南师范大学 基于一键导航移动服务平台的远程汽车诊断系统
US9165413B2 (en) 2013-06-03 2015-10-20 Honda Motor Co., Ltd. Diagnostic assistance
US9524592B2 (en) 2013-06-03 2016-12-20 Honda Motor Co., Ltd. Driving analytics
US9037572B2 (en) 2013-06-03 2015-05-19 Honda Motor Co., Ltd. Event driven snapshots
US9304846B2 (en) 2014-04-29 2016-04-05 Ford Global Technologies, Llc Apparatus and method of error monitoring with a diagnostic module
CN104076810A (zh) * 2014-06-11 2014-10-01 深圳市元征软件开发有限公司 基于手机语音方式的汽车诊断方法
DE102014226490A1 (de) * 2014-12-18 2016-06-23 Volkswagen Aktiengesellschaft Vorrichtung und Verfahren zur Meldung einer extraordinären Beanspruchung eines Fahrwerkes eines Fortbewegungsmittels
EP3059928A1 (fr) * 2015-02-23 2016-08-24 W. Gessmann GmbH Appareil de saisie et système d'appareil de service comprenant une interface de communication sans fil
US10290159B2 (en) 2016-02-11 2019-05-14 Ford Global Technologies, Llc Potential chassis damage identification, validation, and notification
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DE102018002216A1 (de) * 2018-03-19 2019-09-19 Daimler Ag Vorrichtung zum Testen von Testobjekten
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Also Published As

Publication number Publication date
US20090204287A1 (en) 2009-08-13
DE102006019972A1 (de) 2007-11-08
WO2007124839A1 (fr) 2007-11-08

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