EP1259402A1 - Procede et dispositif d'interpretation d'evenements et d'affichage d'instructions dans des vehicules automobiles - Google Patents

Procede et dispositif d'interpretation d'evenements et d'affichage d'instructions dans des vehicules automobiles

Info

Publication number
EP1259402A1
EP1259402A1 EP01925286A EP01925286A EP1259402A1 EP 1259402 A1 EP1259402 A1 EP 1259402A1 EP 01925286 A EP01925286 A EP 01925286A EP 01925286 A EP01925286 A EP 01925286A EP 1259402 A1 EP1259402 A1 EP 1259402A1
Authority
EP
European Patent Office
Prior art keywords
driver
vehicle
information
operating instructions
devices
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.)
Ceased
Application number
EP01925286A
Other languages
German (de)
English (en)
Inventor
Markus Klausner
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
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1259402A1 publication Critical patent/EP1259402A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
    • B60R16/0234—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions related to maintenance or repairing of vehicles

Definitions

  • the present invention relates to a method and a device for event interpretation and output of operating instructions in motor vehicles.
  • Today's vehicle information systems essentially consist of individual signal paths, with ⁇ sensor signals being routed from a vehicle-relevant area via a signal evaluation logic to a warning lamp which is specifically responsible for this area. Acoustic signals are also used for warning. Depending on the error that has occurred or the technical problem that has occurred on the vehicle, this is more or less satisfactory. Such a warning is completely sufficient if a warning buzzer is activated when the engine and the headlights are switched on when the driver's door is opened is because the underlying technical problem, namely that the battery of the vehicle is quickly used up during a longer parking period with the headlights on, is very simple and has no serious consequences.
  • the method according to the invention with the features of claim 1 and the corresponding device according to claim 7 have the advantage over the known solution approaches that the driver is informed comprehensively and reliably even in the case of complex technical problems about the problems that have occurred.
  • This information advantageously includes an explanation of the consequences of a problem and a suggestion of how the problem can be solved most easily.
  • the inventive concept thus increases the driver's level of information, enables understanding when the problems occur and also only guides the driver to a very small extent
  • the method proposed according to the invention is open for the driver to make inquiries for information on the operation, maintenance and care of the motor vehicle can. Such inquiries are / are reproduced according to the invention in an optimized form by audio or image or text output to the driver.
  • the key point of the inventive concept is the use of an electronic database, which contains the technical information, including the error codes of devices of the vehicle sensors and vehicle electronics, for evaluating event information which provides the driver with comprehensive and clear information about the problems that have occurred.
  • the database can be the target of an inquiry initiated by the driver.
  • the idea on which the present invention is based is to bundle the abundance of fault information resulting from the abundance of sensors and the complexity of modern vehicles, possibly to link it with empirically gained experience and to issue operating instructions to the driver which are not technically possible overwhelmed but adapted to his current situation. This can be very important, especially when driving at high speed.
  • the inventive system preferably reacts to the following events:
  • an event can be defined by reaching or exceeding certain critical threshold values of measurement variables relevant to the vehicle or by the occurrence of predetermined signal patterns or error codes originating from the devices of the vehicle electronics and / or the vehicle sensors.
  • ms-specific error states that occur simultaneously are systematically recorded as a specific combination. Since such combinations always occur frequently in statistical terms, empirically gained experiences can be output to the driver as operating instructions.
  • Inquiries from the driver / co-driver can also define an event.
  • the driver might want to know whether certain maintenance work can be expected at a time or kilometer specified by him.
  • the inventive method can process this query and query the technically relevant sensors and then construct an answer.
  • Such a response can be formulated in a particularly preferred manner using so-called linguistic variables.
  • a linguistic variable can describe the technical condition of a particular electronic device or mechanical device.
  • the thickness of a brake pad of a brake disc or the like can be quantified by, for example, four Values for the linguistic variable are kept ready: 'completely sufficient ' , 'sufficient ' , ' still suitable', 'defective.
  • Such linguistic variables can of course be adapted to the importance of the system component assessed for the overall safety of the motor vehicle.
  • a large part of the operating instructions are output to the driver via an audio output unit. This has the advantage that the driver's gaze can remain on the road and is not neglected to do so during the process have to read a continuous display while driving.
  • the method according to the invention can use input or output devices already present in the motor vehicle by providing the system with appropriate interfaces to these devices.
  • the keyboard of the car radio can be used as an input unit
  • the microphone of a car phone or a cell phone can be used as an audio input unit
  • the radio speaker can be used as an audio output unit
  • the display of the radio can be used as a visual output unit.
  • the inventive system for event interpretation and output of operating instructions in motor vehicles has an interface for a radio connection to a remote database for querying information about error codes and / or error code combinations.
  • the database is therefore not on board the vehicle itself, but at one or more geographically dispersed points, and the information is retrieved from the database to the extent that it is required.
  • the database can also be located on board the motor vehicle itself. The implementation of the database is expediently adapted to the existing computer resources. If these resources are sufficient, a relational database can also be implemented in an on-board PC.
  • the system can also be coupled to a database located in a notebook.
  • a database located in a notebook.
  • Bluetooth could be used as the transmission standard.
  • 1 shows a schematic block diagram with the system elements essential for the inventive method and the functional sequence during the inventive method
  • 2 is a tabular representation of the information stored for a certain error code for output to the driver
  • FIG. 3 shows a table-like representation of an exemplary implementation of a rule catalog, which contains the consequences of one or more specific events and a recommendation to the driver.
  • FIG. 1 shows a schematic block diagram with the system elements essential for the inventive method and the functional sequence during the inventive method.
  • an on-board service assistant (OSA).
  • OSA on-board service assistant
  • an input / output unit 12 is provided, a number of keys and operating elements serving as the output unit, and a microphone being provided.
  • the em / output unit 12 contains a pixel-oriented display and loudspeakers for the speech output.
  • Audio signals spoken by the driver and entering the system are used in a Mo ⁇ l 14 for speech interpretation n certain keywords are converted which are subjected to analysis by the system.
  • the module for speech interpretation 14 preferably contains speech recognition software, possibly with a connection to suitable hardware such as DSP, and converts the driver's request into search terms recognizable for the system.
  • the speech interpretation module 14 can be designed to be interactive in order to pick up certain terms entered by the driver and to give the driver a choice of terms stored for one or more entered terms in the database. This method of user guidance would then be analogous to the usual online help system and dialogs.
  • a specific request relates to a measurable quantity
  • this request is processed in a logic and a yes branch or nem branch is branched into, a specific measurement quantity of the on-board electronics requested by the driver being branched into the yes branch and sensors 18 n of a CAN message conversion logic 16 is converted into a CAN bus query.
  • the requested measurement quantity of the on-board electronics and sensor system 18 is read via the CAN bus, and the measurement value is presented to another system component, the system monitor 20, for evaluation.
  • the system monitor 20 detects that critical threshold values have been exceeded and the occurrence of unusual signal patterns and can query error codes from the control units.
  • the system monitor 20 can be implemented as an independent hardware unit or also as additional software in an already existing control device or an already existing on-board PC. All decision logic is programmed in it.
  • the system monitor 20 is also connected to a module 22 for converting the measurement result into a search term suitable for a database 24.
  • One or more associated table entries associated with an error code of a particular requested sensor can be searched in the database, and all relevant information from the database can be stored in a result buffer 26 for optical and / or preferably acoustic reproduction the driver is kept ready until he confirms the output of the relevant event interpretation by means of an acknowledgment action, for example by pressing any key.
  • the database 24 can be understood as an on-board service manual (OBSM) on board the motor vehicle, which contains further information for certain error codes.
  • OBSM on-board service manual
  • the (OSA) reacts to the above-mentioned events such as faults in the on-board electronics and other detectable problems such as an increased engine temperature, an insufficient engine oil level, etc. and to requests from the driver.
  • the information assigned to the event is located in the OBSM and the information to be passed on to the driver is selected.
  • a display delay for any error code can also be stored in the database. Such a display delay prevents the driver from being distracted when uncritical events occur while driving.
  • the result for a specific error code that has occurred can be read out of the intermediate memory 26 from the database and can be output to the driver at a later, suitable time, decoupled from the actual occurrence of the error. This time decoupling is shown in FIG. 1 by the dashed frame around the input / output unit 12.
  • Such a time delay can be implemented using conventional measures such as a database trigger.
  • the output text provided for the driver can preferably be generated synthetically from the text data contained in the database 24 and additionally or exclusively in the result buffer 26 as an output. ⁇ iom ormation filed.
  • the buffer memory is only erased when the driver has confirmed the output of the information or when the memory is needed for other purposes.
  • the result buffer can also be dimensioned such that it can store information on several events.
  • FIG. 2 shows a table-like representation of the information stored for a particular Fenlerco ⁇ e for output to the driver.
  • FIG. 2 in part for an error code of 0480 and an error code of 4711, the information from the motor vehicle operating instructions, including certain specifications in electronic form, as well as interpretations of significant events, are shown in the observation and evaluation module, which was also referred to as the system monitor 20 , are registered.
  • the table structure shown in FIG. 1 does not necessarily have to reflect the structure of the OBSM database 24 itself.
  • no separate audio file has to be stored for each error code output, since the speech output can also be generated synthetically from text, as mentioned above.
  • a cooling fan 1 has a malfunction, as can be seen in columns 2 and 3.
  • Columns 4 and 5 store that corresponding driver information can be output as audio information and as image information.
  • Column 6 stores as text information that there is a risk of engine overload.
  • the failure of the cooling fan 1 failure is classified as a serious error.
  • Column 8 stores the text of a recommendation, which can be given to the driver as evidence.
  • column 9 it is stored whether the message is to be output with or without a display delay. In this case, the error text, the type of error, the consequence, the classification and the recommendation should be output immediately as audio information and as an image.
  • error code 4711 the error can only be displayed before the next start, since it is only a slight error.
  • the remaining table fields are left blank for the sake of clarity.
  • the system according to the invention can diagnose faults itself by the observation and evaluation module 20, which was also referred to above as the system monitor, cyclically or, in the presence of certain other events, querying fault codes from all or from certain control devices or sensors. If a permanent error code is present, the information stored in the database 24 (OBSM) relating to this error is compiled and stored in the result buffer 26 until it is passed on to the driver, that is to say immediately or only when the engine is switched off or the next time it is started. The driver is informed of the type of error that has occurred, its relevance or severity, and a problem-solving strategy is proposed.
  • OBSM database 24
  • an output could be generated as follows: Please visit the workshop X of the city Y, the street Z, which has already been informed and will repair your car.
  • FIG. 3 shows a table-like representation of an exemplary implementation of a rule catalog, which shows the consequences of one or more specific events and a recommendation to the driver.
  • a preprogrammed catalog of rules is stored in the database 24 OBSM, which assigns recommendations for the driver to critical values or critical value combinations, each of which is based on specific events. This is shown schematically in FIG. 3 for two event combinations. If an event is registered or an event combination is recognized as such, one or more conditions of the control catalog are fulfilled. The information associated with the event is then passed on to the driver. In a preferred manner, the expenditures can be output to the driver sorted according to their importance and duplicate instructions can be omitted.
  • the values of sensor signals in the motor vehicle are periodically monitored by the observation and evaluation module 20.
  • this can preferably be done as follows, by periodically evaluating the stored control catalog, the evaluation or the control catalog containing critical values of sensor signals and combinations of such sensor signals.
  • Coolant level is too low. Then there is a risk of engine overheating, and the driver is given a recommendation that the driver stop at the next opportunity and add coolant.
  • the second example is a combination of four events: On the one hand, the coolant temperature is less than 40 degrees, the current engine speed is more than 7000 revolutions per minute, and the engine load with the linguistic variable is ' high ' and the duration of the observation greater than zv% e ⁇ seconds, ie the engine state defined by the above three events has lasted longer than two seconds. Then there is a risk that the engine life will be reduced. The driver is then advised to reduce the engine speed and load immediately.
  • the number of values of certain linguistic variables depends on the resolution of the associated sensor system. In some cases it is a binary decision, for example if a critical value has been reached or if it has not been reached, whereas in other cases the values associated with a variable can be more finely split, as it was already written at the beginning.
  • the use of lmguistic variables simplifies the implementation of the rule catalog
  • search terms are generated from the query, such as' engine oil level ' , ' transmission oil ', etc., where the query itself could be:' Tell me how it is with the gear oil level and what the level of the engine oil is'.
  • the information sought can advantageously be found using a hierarchically branched search term thesaurus.
  • a next step is then used to decide whether the information desired by the driver is a measurable quantity, such as the coolant supply or the engine oil level.
  • a list with measurable search terms is created and the associated CAN message. If it is a measurable quantity, the corresponding quantity is called up by the on-board electronics, ie the corresponding bytes of a CAN message containing the measured value are read out.
  • the driver is informed that the measured value is in the normal range, for example the tire pressure is OK if a corresponding tire pressure sensor is present on the vehicle.
  • further information on the start of the search which is stored in the database, can be output, such as: 'With normal loading, a tire pressure of 2.3 bar must be ensured for the front and rear wheels. *.
  • the driver's request does not relate to a measurable value, as is the case, for example, in the case of the keyword “ wheel change”, then the information stored for this purpose in the OBSM database 24 issued directly.
  • the delay in output in the case of error messages for each search term in the database, it can be noted whether or not output should be permitted during ferry operation. For example, the display of a graphic for changing the wheel while driving would not make sense insofar as it could distract the driver.
  • the inventive method could also be expanded in such a way that the database 24 also stores information on first aid in the event of an accident in an expanded form.
  • rules of conduct regarding the next steps in an accident situation can be described, or in a more complex embodiment even more detailed information on first aid for accident victims, including graphic representations, can be shown. The driver can then query this information by entering search terms.
  • the system described can be an integral part of a driver information system or an on-board PC or of automatic and navigation systems, depending on the computing power and storage capacities is provided by such systems.
  • the on-board service manual which is stored in the database 24, could also be stored on a portable memory card, such as a multimedia card.
  • a memory card could be provided as a plug-in card for notebooks, driver information systems, car radios or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Traffic Control Systems (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Emergency Alarm Devices (AREA)
  • Navigation (AREA)
  • Instrument Panels (AREA)

Abstract

La présente invention concerne un procédé et un dispositif d"interprétation d"événements et d"affichage d"instructions dans des véhicules automobiles. L"invention se base sur l"idée de lier la quantité d"informations d"erreurs qui résulte de la quantité de capteurs et de la complexité des véhicules modernes, éventuellement à des expériences empiriques et d"afficher au conducteur des instructions qui ne le sollicitent pas trop techniquement mais sont adaptées à sa situation actuelle. Le coeur du concept inventif est l"utilisation d"une base de données électronique (24) qui contient les informations techniques, y compris les codes erreurs d"appareils de la sensorique et de l"électronique du véhicule (18), pour évaluer les informations événements qui informent le conducteur de façon exhaustive et claire sur les problèmes rencontrés. La base de données peut également être l"objet d"une demande initiée par le conducteur.
EP01925286A 2000-02-17 2001-02-16 Procede et dispositif d'interpretation d'evenements et d'affichage d'instructions dans des vehicules automobiles Ceased EP1259402A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10007218A DE10007218B4 (de) 2000-02-17 2000-02-17 Verfahren zur Ereignisinterpretation und Ausgabe von Bedienhinweisen in Kraftfahrzeugen
DE10007218 2000-02-17
PCT/DE2001/000612 WO2001060661A1 (fr) 2000-02-17 2001-02-16 Procede et dispositif d"interpretation d"evenements et d"affichage d"instructions dans des vehicules automobiles

Publications (1)

Publication Number Publication Date
EP1259402A1 true EP1259402A1 (fr) 2002-11-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01925286A Ceased EP1259402A1 (fr) 2000-02-17 2001-02-16 Procede et dispositif d'interpretation d'evenements et d'affichage d'instructions dans des vehicules automobiles

Country Status (6)

Country Link
US (1) US6859695B2 (fr)
EP (1) EP1259402A1 (fr)
JP (1) JP2003522673A (fr)
CN (1) CN1230327C (fr)
DE (1) DE10007218B4 (fr)
WO (1) WO2001060661A1 (fr)

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US6859695B2 (en) 2005-02-22
CN1230327C (zh) 2005-12-07
DE10007218A1 (de) 2001-09-06
US20030144775A1 (en) 2003-07-31
DE10007218B4 (de) 2009-11-26
JP2003522673A (ja) 2003-07-29
WO2001060661A1 (fr) 2001-08-23

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