WO2017207309A1 - Method and device for carrying out a diagnosis - Google Patents

Method and device for carrying out a diagnosis Download PDF

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Publication number
WO2017207309A1
WO2017207309A1 PCT/EP2017/062206 EP2017062206W WO2017207309A1 WO 2017207309 A1 WO2017207309 A1 WO 2017207309A1 EP 2017062206 W EP2017062206 W EP 2017062206W WO 2017207309 A1 WO2017207309 A1 WO 2017207309A1
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WO
WIPO (PCT)
Prior art keywords
diagnosis
route
motor vehicle
driving operation
driving
Prior art date
Application number
PCT/EP2017/062206
Other languages
German (de)
French (fr)
Inventor
Joerg Neumann
Hauke Wendt
Sergey Chirkov
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
Priority to CN201780034270.6A priority Critical patent/CN109219550A/en
Publication of WO2017207309A1 publication Critical patent/WO2017207309A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/04—Monitoring the functioning of the control system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16—Type of output information
    • B60K2360/175—Autonomous driving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/04—Monitoring the functioning of the control system
    • B60W2050/041—Built in Test Equipment [BITE]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/10—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle or its components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/12—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle exterior
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/3407—Route searching; Route guidance specially adapted for specific applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the present invention relates to a method and a device for carrying out a diagnosis of at least one component of a motor vehicle according to the preamble of the independently formulated claims.
  • WO 2014/001054 AI From WO 2014/001054 AI the planning of a vehicle diagnosis is known.
  • the operating behavior of a vehicle traveling on a given route is estimated.
  • the probability is determined that the estimated performance is suitable for vehicle diagnosis. Based on this probability, the vehicle diagnosis is planned.
  • the present invention is based on a method and a device for carrying out a diagnosis of at least one component of a motor vehicle during a driving operation.
  • the driving mode is adapted to the diagnosis.
  • the motor vehicle at least temporarily an automated driving operation, in which the motor vehicle is at least partially controlled automatically without the action of an occupant of the motor vehicle to a predetermined destination by means of a route.
  • the essence of the invention is that the adaptation to the diagnosis is done in automated driving.
  • the advantage of the invention is that due to the independence of the driver's influence during the automated driving operation, there is as much freedom as possible for modification, for example for the modification of the route, the time of the route or the driving state during the driving of a driving route. This makes it possible according to the invention, during the automated driving an optimal
  • Adaptation to be made to the diagnosis to be carried out can be performed more frequently, which can lead to an improvement in the operational safety of the motor vehicle. Diagnoses can be carried out in a timely and reliable manner. The probability that a motor vehicle must be shut down due to a lack of diagnosis can be significantly reduced.
  • a driving state can be understood as meaning parameters for wheel speeds, lateral acceleration, yaw rate, brake interventions and steering angle.
  • Driving the route is adapted to the diagnosis in automated driving.
  • the advantage of this embodiment is that the diagnosis can be carried out both in the presence (passenger), and in the absence of an occupant (empty). Empty runs are preferably selected, since in these the execution is completely independent of the driving behavior of a driver and of the route selected by him. For example, statistical information and / or current traffic information on possible routes can also be included in the choice of the time. Based on this information, a suitable choice of the time to drive on the route can be made. For example, an empty diesel particulate filter regeneration may be performed when a nearby freeway with appropriate speed clearance is free.
  • the adaptation to the diagnosis in the automated driving operation is done in such a way that at least one driving distance driven with a predefinable frequency is selected for the diagnosis.
  • This refinement has the advantage that planned and / or regularly traveled routes to a destination (for example, the weekly drive to the sport) can be used specifically to carry out the diagnoses.
  • a route not predetermined by an occupant is selected for diagnosis.
  • the advantage of this embodiment is that the implementation of the diagnosis is independent of the driver.
  • the diagnosis can also be carried out, for example, if the occupant does not select a route suitable for the diagnosis over a longer period of time.
  • the adjustment to the diagnosis in automated driving operation is done in such a way that the driving operation and / or the driving route and / or the time for driving on the driving route in connection with a repair of the component are selected.
  • the connection here is that the diagnosis is carried out to check a completed repair. This can be the repair in a workshop. The diagnosis can be made while the vehicle is in the hands of the workshop. It is also possible to drive home to the vehicle owner for the
  • This embodiment has the advantage that diagnoses can be performed promptly after a repair, regardless of their conditions.
  • diagnosis of SCR systems English, selective catalytic reduction
  • the catalyst must be warm and the reagent used in the system must have a certain minimum conversion for the
  • a device for carrying out a diagnosis of at least one component of a motor vehicle during a driving operation is also claimed.
  • this device means are provided, by means of which an adaptation of the driving operation to the diagnosis is done.
  • the motor vehicle has at least temporarily an automated driving operation in which the motor vehicle is at least partially automatically controlled without the action of an occupant of the motor vehicle to a predeterminable destination by means of a route.
  • means are provided by means of which an adaptation of the automated driving operation to the diagnosis is done.
  • the device means are provided by means of which the adaptation of the automated driving operation to the diagnosis is done such that the choice of the route is dependent on the diagnosis. It is also possible that the driving state when driving on the route depends on the diagnosis. Or a time for driving on the route is adapted to the diagnosis in automated driving mode.
  • the three options mentioned can also be selected partially or completely in combination. drawings
  • FIG 2 shows the communication between an exemplary device and a component of the motor vehicle.
  • FIG. 1 shows an exemplary sequence of the disclosed method in a motor vehicle.
  • the method starts in step 101.
  • the query step 102 is executed, in which it is decided based on the data supplied by a component 202 (see FIG. 2) of the motor vehicle whether there is a need for diagnosis.
  • step 104 If it is determined in step 102 that there is a need for a diagnosis, it is determined in step 104 whether an automated driving operation is present or whether an automated driving operation is possible, which can be adapted. Possibly means here that the motor vehicle can be converted into an automated driving operation and an empty run can be carried out for diagnosis. It is checked whether the motor vehicle can be controlled without the action of an occupant to a predeterminable destination by means of a route.
  • step 104 If it is determined in step 104 that an automated driving operation is present or that an automated driving operation is possible, the automatic driving operation is adapted to the diagnosis after at least one of the steps 105, 106 or 107:
  • step 105 a route suitable for the diagnosis to be performed is selected.
  • step 106 a driving condition suitable for the diagnosis is selected.
  • step 107 a time suitable for the diagnosis for driving the route is selected.
  • Steps 105, 106, and 107 may be performed alone. However, two of the three steps can be combined with each other or even all three steps with each other. After the selection of the suitable route and / or the appropriate driving state and / or the appropriate time for driving on the route, the diagnosis is carried out.
  • step 108 After completion of the diagnosis, the method ends in step 108.
  • FIG. 2 shows by way of example how a component 202 of the motor vehicle and the device 201 communicate with one another to carry out the diagnosis. If a component 202 has a diagnostic requirement, it reports this to the device 201. After completing the method according to FIG. 1, the device 201 reports the result to the component 202. If the diagnosis has been carried out successfully, there is no need for a renewed diagnostic request and the component 202 issues initially no new signal to the device. If the diagnosis could not be performed or terminated, or if the component 202 needs to be diagnosed again, it reports this requirement to the device 201.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Navigation (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

The invention relates to a method and a device for carrying out a diagnosis of at least one component of a motor vehicle when in a driving mode. The driving mode is adapted to the diagnosis. According to the invention, the motor vehicle has, at least intermittently, an automated driving mode in which said motor vehicle is controlled at least partly automatically without the action of a passenger of the motor vehicle, to reach a predefinable travel destination by a travel route. The core of the invention consists in the adaptation to the diagnosis taking place in the automated driving mode.

Description

Beschreibung  description
Titel title
Verfahren und Vorrichtung zur Durchführung einer Diagnose Stand der Technik  Method and device for carrying out a diagnosis Prior art
Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zur Durchführung einer Diagnose wenigstens einer Komponente eines Kraftfahrzeugs gemäß dem Oberbegriff der unabhängig formulierten Ansprüche. The present invention relates to a method and a device for carrying out a diagnosis of at least one component of a motor vehicle according to the preamble of the independently formulated claims.
Aus der WO 2014/001054 AI ist die Planung einer Fahrzeugdiagnose bekannt. Es wird das Betriebsverhalten eines Fahrzeuges, welches auf einer vorgegeben Route fährt, abgeschätzt. Die Wahrscheinlichkeit wird bestimmt, dass das geschätzte Betriebsverhalten für eine Fahrzeugdiagnose geeignet ist. Basierend auf dieser Wahrscheinlichkeit wird die Fahrzeugdiagnose geplant. From WO 2014/001054 AI the planning of a vehicle diagnosis is known. The operating behavior of a vehicle traveling on a given route is estimated. The probability is determined that the estimated performance is suitable for vehicle diagnosis. Based on this probability, the vehicle diagnosis is planned.
Offenbarung der Erfindung Disclosure of the invention
Die vorliegende Erfindung geht aus von einem Verfahren bzw. einer Vorrichtung zur Durchführung einer Diagnose wenigstens einer Komponente eines Kraftfahrzeugs während eines Fahrbetriebs. Dabei wird der Fahrbetrieb an die Diagnose angepasst. The present invention is based on a method and a device for carrying out a diagnosis of at least one component of a motor vehicle during a driving operation. The driving mode is adapted to the diagnosis.
Erfindungsgemäß weist das Kraftfahrzeug wenigstens zeitweise einen automatisierten Fahrbetrieb auf, in dem das Kraftfahrzeug wenigstens partiell selbsttätig ohne Einwirkung eines Insassen des Kraftfahrzeugs zu einem vorgebbaren Fahrziel mittels einer Fahrstrecke gesteuert wird. Der Kern der Erfindung besteht darin, dass das Anpassen an die Diagnose im automatisierten Fahrbetrieb geschieht. Der Vorteil der Erfindung besteht darin, dass durch die Unabhängigkeit vom Fahrerein- fluss während des automatisierten Fahrbetriebs weitestgehend eine Freiheit zur Modifikation, beispielsweise zur Modifikation der Fahrstrecke, des Zeitpunkts der Fahrstrecke oder des Fahrzustands während des Befahrens einer Fahrstrecke, besteht. Dadurch ist es erfindungsgemäß möglich, während dem automatisierten Fahrbetrieb eine optimaleAccording to the invention, the motor vehicle at least temporarily an automated driving operation, in which the motor vehicle is at least partially controlled automatically without the action of an occupant of the motor vehicle to a predetermined destination by means of a route. The essence of the invention is that the adaptation to the diagnosis is done in automated driving. The advantage of the invention is that due to the independence of the driver's influence during the automated driving operation, there is as much freedom as possible for modification, for example for the modification of the route, the time of the route or the driving state during the driving of a driving route. This makes it possible according to the invention, during the automated driving an optimal
Anpassung an die durchzuführende Diagnose stattfinden zu lassen. Hierdurch können beispielsweise Diagnosen häufiger durchgeführt werden, was zu einer Verbesserung der Betriebssicherheit des Kraftfahrzeugs führen kann. Diagnosen können rechtzeitig und zuverlässig durchgeführt werden. Die Wahrscheinlichkeit, dass ein Kraftfahrzeug wegen einer fehlenden Diagnose abgestellt werden muss, kann deutlich reduziert werden. Adaptation to be made to the diagnosis to be carried out. As a result, for example, diagnoses can be performed more frequently, which can lead to an improvement in the operational safety of the motor vehicle. Diagnoses can be carried out in a timely and reliable manner. The probability that a motor vehicle must be shut down due to a lack of diagnosis can be significantly reduced.
Hintergrund für diese Vorteile ist, dass die Durchführung von Diagnosen im nicht-auto- matisierten Fahrbetrieb wesentlich vom Fahrereinfluss abhängen. Da der Fahrerein- fluss nur schwer vorhersagbar ist, führt dies zu einem häufigen Abbruch von Diagnosen. Mit Hilfe des erfindungsgemäßen Verfahrens kann ein solcher Abbruch vermieden werden. The background to these advantages is that the performance of diagnostics in non-automated driving depends significantly on the driver's influence. Since the driver's influence is difficult to predict, this leads to a frequent cancellation of diagnoses. With the help of the method according to the invention such a termination can be avoided.
In einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass das Anpassen an die Diagnose im automatisierten Fahrbetrieb derart geschieht, dass die Wahl derIn an advantageous embodiment of the invention it is provided that the adaptation to the diagnosis in automated driving operation is done such that the choice of
Fahrstrecke abhängig von der Diagnose ist. Der Vorteil besteht darin, dass Diagnosen, die vor allem auf ganz bestimmten Fahrstrecken durchzuführen sind, rechtzeitig und zuverlässig durchgeführt werden können. Ein Beispiel für eine solche Diagnose ist die Dieselpartikelfilter-Regeneration. Hier werden eine lange Fahrstrecke und eine Fahr- strecke mit einer Mindestgeschwindigkeit benötigt. Um eine anstehende Dieselpartikelfilter-Regeneration durchzuführen, kann mit Hilfe der vorteilhaften Ausgestaltung des erfindungsgemäßen Verfahrens zum Beispiel eine Autobahn als Fahrtstrecke ausgewählt werden. In einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass das Anpassen an die Diagnose im automatisierten Fahrbetrieb derart geschieht, dass ein Fahrzustand beim Befahren der Fahrstrecke von der Diagnose abhängt. Diese Ausgestaltung bietet den Vorteil, dass Diagnosen, welche unter Bedingungen ablaufen, die im nicht-automa- tisierten Fahrbetrieb selten oder gar nicht erfüllt werden, rechtzeitig und zuverlässig durchgeführt werden. Unter einem Fahrzustand können hierbei Parameter für Raddrehzahlen, die Querbeschleunigung, die Giergeschwindigkeit, Bremseingriffe und Lenkwinkel verstanden werden. In einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass ein Zeitpunkt zumDistance depends on the diagnosis. The advantage is that diagnoses, which are to be carried out especially on very specific routes, can be carried out in a timely and reliable manner. An example of such a diagnosis is the diesel particulate filter regeneration. Here a long route and a route with a minimum speed are required. In order to carry out an upcoming diesel particle filter regeneration, for example a highway can be selected as the route with the aid of the advantageous embodiment of the method according to the invention. In a further embodiment of the invention, it is provided that the adaptation to the diagnosis in automated driving operation is done in such a way that a driving state when driving on the driving route depends on the diagnosis. This refinement has the advantage that diagnoses which take place under conditions which are seldom or not fulfilled in non-automated driving operation are timely and reliable be performed. In this context, a driving state can be understood as meaning parameters for wheel speeds, lateral acceleration, yaw rate, brake interventions and steering angle. In a further embodiment of the invention, it is provided that a time for
Befahren der Fahrstrecke an die Diagnose im automatisierten Fahrbetrieb angepasst wird. Der Vorteil dieser Ausgestaltung besteht darin, dass die Diagnose sowohl bei Anwesenheit (Personenfahrt), als auch bei Abwesenheit eines Insassen (Leerfahrt) durchgeführt werden kann. Bevorzugt werden Leerfahrten gewählt, da bei diesen die Durch- führung komplett unabhängig vom Fahrverhalten eines Fahrers und der von ihm gewählten Fahrstrecke ist. In die Wahl des Zeitpunkts können beispielsweise auch statistische Informationen und/oder aktuelle Verkehrsinformationen zu möglichen Fahrstrecken einfließen. Anhand dieser Informationen kann eine geeignete Wahl des Zeitpunkts zum Befahren der Fahrstrecke getroffen werden. So kann zum Beispiel eine Leerfahrt zur Dieselpartikelfilter-Regeneration dann durchgeführt werden, wenn eine nahegelegene Autobahn mit passenden Geschwindigkeitsfreigabe frei ist. Driving the route is adapted to the diagnosis in automated driving. The advantage of this embodiment is that the diagnosis can be carried out both in the presence (passenger), and in the absence of an occupant (empty). Empty runs are preferably selected, since in these the execution is completely independent of the driving behavior of a driver and of the route selected by him. For example, statistical information and / or current traffic information on possible routes can also be included in the choice of the time. Based on this information, a suitable choice of the time to drive on the route can be made. For example, an empty diesel particulate filter regeneration may be performed when a nearby freeway with appropriate speed clearance is free.
In einer bevorzugten Ausgestaltung der Erfindung geschieht das Anpassen an die Diagnose im automatisierten Fahrbetrieb derart, dass zur Diagnose wenigstens eine mit einer vorgebbaren Häufigkeit gefahrene Fahrstrecke ausgewählt wird. Diese Ausgestaltung bietet den Vorteil, dass eingeplante und/oder regelmäßig befahrene Fahrstrecken zu einem Fahrziel (beispielsweise die wöchentliche Fahrt zum Sport) gezielt genutzt werden können, um die Diagnosen durchzuführen. In einer weiteren bevorzugten Ausgestaltung der Erfindung wird zur Diagnose eine nicht von einem Insassen vorgegebene Fahrtstrecke ausgewählt. Der Vorteil dieser Ausgestaltung besteht darin, dass die Durchführung der Diagnose unabhängig vom Fahrereinfluss ist. Die Diagnose kann zum Beispiel auch dann durchgeführt werden, wenn der Insasse über einen längeren Zeitraum keine für die Diagnose geeignete Stre- cke auswählt. In a preferred embodiment of the invention, the adaptation to the diagnosis in the automated driving operation is done in such a way that at least one driving distance driven with a predefinable frequency is selected for the diagnosis. This refinement has the advantage that planned and / or regularly traveled routes to a destination (for example, the weekly drive to the sport) can be used specifically to carry out the diagnoses. In a further preferred embodiment of the invention, a route not predetermined by an occupant is selected for diagnosis. The advantage of this embodiment is that the implementation of the diagnosis is independent of the driver. The diagnosis can also be carried out, for example, if the occupant does not select a route suitable for the diagnosis over a longer period of time.
In einer weiteren Ausgestaltung der Erfindung geschieht das Anpassen an die Diagnose im automatisierten Fahrbetrieb derart, dass der Fahrbetrieb und/oder die Fahrstrecke und/oder der Zeitpunkt zum Befahren der Fahrstrecke im Zusammenhang mit einer erfolgten Reparatur der Komponente ausgewählt werden. Der Zusammenhang besteht hierbei darin, dass die Diagnose zur Überprüfung einer erfolgten Reparatur durchgeführt wird. Hierbei kann es sich um die Reparatur in einer Werkstatt handeln. Die Diagnose kann durchgeführt werden, während sich das Fahrzeug in der Obhut der Werkstatt befindet. Es ist weiterhin möglich, die Heimfahrt zum Fahrzeughalter für dieIn a further embodiment of the invention, the adjustment to the diagnosis in automated driving operation is done in such a way that the driving operation and / or the driving route and / or the time for driving on the driving route in connection with a repair of the component are selected. The connection here is that the diagnosis is carried out to check a completed repair. This can be the repair in a workshop. The diagnosis can be made while the vehicle is in the hands of the workshop. It is also possible to drive home to the vehicle owner for the
Diagnose zu nutzen. Diese Ausgestaltung hat den Vorteil, dass Diagnosen unabhängig von ihren Bedingungen zeitnah nach einer Reparatur durchgeführt werden können. So bedarf es zum Beispiel bei der Diagnose von SCR-Systemen (englisch, selective cata- lytic reduction) einer gewissen Fahrstrecke unter Last. Der Katalysator muss warm sein und das im System verwendete Reagenz muss einen gewissen Mindestumsatz für dieTo use diagnosis. This embodiment has the advantage that diagnoses can be performed promptly after a repair, regardless of their conditions. For example, the diagnosis of SCR systems (English, selective catalytic reduction) requires a certain distance under load. The catalyst must be warm and the reagent used in the system must have a certain minimum conversion for the
Diagnose haben. Diese Bedingungen können für eine Werkstatt einen unverhältnismäßigen Aufwand bedeuten. Durch die Ausgestaltung der Erfindung werden zum Beispiel auch solche Diagnosen ermöglicht. So erhalten Werkstatt und Fahrzeughalter zeitnah nach der erfolgten Reparatur eine Rückmeldung, ob die Reparatur erfolgreich war. Have a diagnosis. These conditions can be disproportionate for a workshop. Due to the embodiment of the invention, for example, such diagnoses are possible. In this way, workshop and vehicle owners receive a timely confirmation of whether the repair was successful after the repair has been completed.
Erfindungsgemäß wird außerdem eine Vorrichtung zur Durchführung einer Diagnose wenigstens einer Komponente eines Kraftfahrzeugs während eines Fahrbetriebs beansprucht. Bei dieser Vorrichtung sind Mittel vorgesehen, mittels der eine Anpassung des Fahrbetriebs an die Diagnose geschieht. Das Kraftfahrzeug weist wenigstens zeitweise einen automatisierten Fahrbetrieb auf, in dem das Kraftfahrzeug wenigstens partiell selbsttätig ohne Einwirkung eines Insassen des Kraftfahrzeugs zu einem vorgebbaren Fahrziel mittels einer Fahrstrecke gesteuert wird. Weiterhin sind Mittel vorgesehen, mittels der eine Anpassung des automatisierten Fahrbetriebs an die Diagnose geschieht. In einer Ausgestaltung der Vorrichtung sind Mittel vorgesehen, mittels denen die Anpassung des automatisierten Fahrbetriebs an die Diagnose derart geschieht, dass die Wahl der Fahrstrecke abhängig von der Diagnose ist. Es ist auch möglich, dass der Fahrzustand beim Befahren der Fahrstrecke von der Diagnose abhängt. Oder ein Zeitpunkt zum Befahren der Fahrstrecke wird an die Diagnose im automatisierten Fahrbe- trieb angepasst. Die drei genannten Möglichkeiten können auch teilweise oder komplett in Kombination gewählt werden. Zeichnungen According to the invention, a device for carrying out a diagnosis of at least one component of a motor vehicle during a driving operation is also claimed. In this device means are provided, by means of which an adaptation of the driving operation to the diagnosis is done. The motor vehicle has at least temporarily an automated driving operation in which the motor vehicle is at least partially automatically controlled without the action of an occupant of the motor vehicle to a predeterminable destination by means of a route. Furthermore, means are provided by means of which an adaptation of the automated driving operation to the diagnosis is done. In one embodiment of the device means are provided by means of which the adaptation of the automated driving operation to the diagnosis is done such that the choice of the route is dependent on the diagnosis. It is also possible that the driving state when driving on the route depends on the diagnosis. Or a time for driving on the route is adapted to the diagnosis in automated driving mode. The three options mentioned can also be selected partially or completely in combination. drawings
Nachfolgend wird ein Ausführungsbeispiel der vorliegenden Erfindung anhand der beiliegenden Zeichnung näher erläutert. Dabei zeigen: Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Showing:
Fig. 1 ein schematisches Ablaufdiagramm eines beispielhaften Verfahrens; und 1 is a schematic flowchart of an exemplary method; and
Fig. 2 die Kommunikation zwischen einer beispielhaften Vorrichtung und einer Komponente des Kraftfahrzeugs. 2 shows the communication between an exemplary device and a component of the motor vehicle.
Ausführungsformen der Erfindung Embodiments of the invention
In der Figur 1 ist ein beispielhafter Ablauf des offenbarten Verfahrens in einem Kraftfahrzeug dargestellt. FIG. 1 shows an exemplary sequence of the disclosed method in a motor vehicle.
Das Verfahren startet in Schritt 101. Es wird der Abfrageschritt 102 ausgeführt, bei dem anhand der von einer Komponente 202 (siehe Figur 2) des Kraftfahrzeugs gelieferten Daten entschieden wird, ob ein Diagnosebedarf besteht. The method starts in step 101. The query step 102 is executed, in which it is decided based on the data supplied by a component 202 (see FIG. 2) of the motor vehicle whether there is a need for diagnosis.
Wird in Schritt 102 festgestellt, dass eine Notwendigkeit einer Diagnose besteht, so wird in Schritt 104 ermittelt, ob ein automatisierter Fahrbetrieb vorliegt oder ob ein automatisierter Fahrbetrieb möglich ist, der angepasst werden kann. Möglich bedeutet hier, dass das Kraftfahrzeug in einen automatisierten Fahrbetrieb überführt und eine Leerfahrt zur Diagnose durchgeführt werden kann. Es wird geprüft, ob das Kraftfahrzeug ohne Einwirkung eines Insassen zu einem vorgebbaren Fahrziel mittels einer Fahrstrecke gesteuert werden kann. If it is determined in step 102 that there is a need for a diagnosis, it is determined in step 104 whether an automated driving operation is present or whether an automated driving operation is possible, which can be adapted. Possibly means here that the motor vehicle can be converted into an automated driving operation and an empty run can be carried out for diagnosis. It is checked whether the motor vehicle can be controlled without the action of an occupant to a predeterminable destination by means of a route.
Wird in Schritt 104 festgestellt, dass ein automatisierter Fahrbetrieb vorliegt oder dass ein automatisierter Fahrbetrieb möglich ist, erfolgt das Anpassen des automatisierten Fahrbetriebs an die Diagnose nach mindestens einem der Schritte 105, 106 oder 107: If it is determined in step 104 that an automated driving operation is present or that an automated driving operation is possible, the automatic driving operation is adapted to the diagnosis after at least one of the steps 105, 106 or 107:
In Schritt 105 wird eine für die durchzuführende Diagnose geeignete Fahrstrecke gewählt. In step 105, a route suitable for the diagnosis to be performed is selected.
In Schritt 106 wird ein für die Diagnose geeigneter Fahrzustand gewählt. In Schritt 107 wird ein für die Diagnose geeigneter Zeitpunkt zum Befahren der Fahrstrecke gewählt. In step 106, a driving condition suitable for the diagnosis is selected. In step 107, a time suitable for the diagnosis for driving the route is selected.
Die Schritte 105, 106 und 107 können allein durchgeführt werden. Es können aber auch zwei der drei Schritte miteinander kombiniert werden oder auch alle drei Schritte miteinander. Nach der Auswahl der geeigneten Fahrstrecke und/oder des geeigneten Fahrzustands und/oder des geeigneten Zeitpunkts zum Befahren der Fahrstrecke wird die Diagnose durchgeführt. Steps 105, 106, and 107 may be performed alone. However, two of the three steps can be combined with each other or even all three steps with each other. After the selection of the suitable route and / or the appropriate driving state and / or the appropriate time for driving on the route, the diagnosis is carried out.
Nach Abschluss der Diagnose endet das Verfahren in Schritt 108. After completion of the diagnosis, the method ends in step 108.
In Figur 2 ist beispielhaft dargestellt, wie eine Komponente 202 des Kraftfahrzeugs und die Vorrichtung 201 zur Durchführung der Diagnose miteinander kommunizieren. Hat eine Komponente 202 einen Diagnosebedarf, so meldet sie dies an die Vorrichtung 201. Nach Abschluss des Verfahrens gemäß Figur 1 meldet die Vorrichtung 201 das Ergebnis an die Komponente 202. Wurde die Diagnose erfolgreich durchgeführt, besteht zeitnah kein erneuter Diagnosebedarf und die Komponente 202 gibt zunächst kein erneutes Signal an die Vorrichtung. Konnte die Diagnose nicht ausgeführt oder beendet werden oder besteht ein erneuter Diagnosebedarf der Komponente 202, so meldet sie diesen Bedarf bei der Vorrichtung 201 an. FIG. 2 shows by way of example how a component 202 of the motor vehicle and the device 201 communicate with one another to carry out the diagnosis. If a component 202 has a diagnostic requirement, it reports this to the device 201. After completing the method according to FIG. 1, the device 201 reports the result to the component 202. If the diagnosis has been carried out successfully, there is no need for a renewed diagnostic request and the component 202 issues initially no new signal to the device. If the diagnosis could not be performed or terminated, or if the component 202 needs to be diagnosed again, it reports this requirement to the device 201.

Claims

Ansprüche claims
1. Verfahren zur Durchführung einer Diagnose wenigstens einer Komponente eines Kraftfahrzeugs während eines Fahrbetriebs, wobei der Fahrbetrieb an die Diagnose (105, 106, 107) angepasst wird, 1. A method for carrying out a diagnosis of at least one component of a motor vehicle during a driving operation, wherein the driving operation is adapted to the diagnosis (105, 106, 107),
dadurch gekennzeichnet, dass characterized in that
das Kraftfahrzeug wenigstens zeitweise einen automatisierten Fahrbetrieb aufweist, in dem das Kraftfahrzeug wenigstens partiell selbsttätig ohne Einwirkung eines Insassen des Kraftfahrzeug zu einem vorgebbaren Fahrziel mittels einer Fahrstrecke gesteuert wird, mit folgendem Schritt the motor vehicle at least temporarily has an automated driving operation, in which the motor vehicle is at least partially controlled automatically without the action of an occupant of the motor vehicle to a predeterminable destination by means of a route, with the following step
• Anpassen des automatisierten Fahrbetriebs an die Diagnose (105, 106, 107).  • Adapting the automated driving operation to the diagnosis (105, 106, 107).
2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, dass das Anpassen an die Diagnose im automatisierten Fahrbetrieb derart geschieht, dass die Wahl der Fahrstrecke (105) abhängig von der Diagnose ist. 2. The method according to claim 1, characterized in that the adaptation to the diagnosis in automated driving operation is such that the choice of the route (105) is dependent on the diagnosis.
3. Verfahren nach Anspruch 1 dadurch gekennzeichnet, dass das Anpassen an die Diagnose im automatisierten Fahrbetrieb derart geschieht, dass wenigstens ein Fahrzustand (106) beim Befahren der Fahrstrecke von der Diagnose abhängt. 3. The method according to claim 1, characterized in that the adaptation to the diagnosis in automated driving operation is such that at least one driving state (106) when driving on the route depends on the diagnosis.
4. Verfahren nach Anspruch 1 dadurch gekennzeichnet, dass ein Zeitpunkt zum Befah ren der Fahrstrecke (107) an die Diagnose im automatisierten Fahrbetrieb angepasst wird. 4. The method according to claim 1, characterized in that a time for Befah Ren the route (107) is adapted to the diagnosis in automated driving.
5. Verfahren nach Anspruch 2 dadurch gekennzeichnet, dass das Anpassen derart geschieht, dass zur Diagnose wenigstens eine mit einer vorgebbaren Häufigkeit gefahrene Fahrstrecke ausgewählt wird (105). 5. The method according to claim 2, characterized in that the adaptation is done such that for diagnosis at least one driven at a predeterminable frequency driving distance is selected (105).
6. Verfahren nach Anspruch 2 dadurch gekennzeichnet, dass das Anpassen derart geschieht, dass zur Diagnose wenigstens eine nicht von einem Insassen vorgegebene Fahrstrecke ausgewählt wird (105). 6. The method according to claim 2, characterized in that the adaptation is done such that for diagnosis at least one not predetermined by an occupant route is selected (105).
7. Verfahren nach Anspruch 1 dadurch gekennzeichnet, dass das Anpassen an die Diagnose im automatisierten Fahrbetrieb derart geschieht, dass der Fahrzustand (106) und/oder die Fahrstrecke (105) und/oder der Zeitpunkt zum Befahren der Fahrstrecke (107) im Zusammenhang mit einer erfolgten Reparatur der Komponente ausgewählt werden. 8. Vorrichtung (201) zur Durchführung einer Diagnose wenigstens einer Komponente7. The method of claim 1, characterized in that the adaptation to the diagnosis in automated driving operation is such that the driving state (106) and / or the route (105) and / or the time for driving on the route (107) in connection with a repair of the component are selected. 8. Device (201) for performing a diagnosis of at least one component
(202) eines Kraftfahrzeugs während eines Fahrbetriebs, bei der Mittel vorgesehen sind mittels der eine Anpassung des Fahrbetriebs an die Diagnose geschieht, (202) of a motor vehicle during a driving operation, in which means are provided by means of which the driving operation is adapted to the diagnosis,
dadurch gekennzeichnet, dass characterized in that
das Kraftfahrzeug wenigstens zeitweise einen automatisierten Fahrbetrieb aufweist, in dem das Kraftfahrzeug wenigstens partiell selbsttätig ohne Einwirkung eines Insassen des Kraftfahrzeug zu einem vorgebbaren Fahrziel mittels einer Fahrstrecke gesteuert wird, bei der weiterhin Mittel vorgesehen sind, mittels der eine Anpassung des automatisierten Fahrbetriebs an die Diagnose geschieht. 9. Vorrichtung nach Anspruch 8 dadurch gekennzeichnet, dass das Anpassen an diethe motor vehicle at least temporarily has an automated driving operation in which the motor vehicle is at least partially automatically controlled without the action of an occupant of the motor vehicle to a predetermined destination by means of a route, in which means are provided by means of an adjustment of the automated driving operation to the diagnosis , 9. Apparatus according to claim 8, characterized in that the adaptation to the
Diagnose im automatisierten Fahrbetrieb derart geschieht, dass die Wahl der Fahrstrecke abhängig von der Diagnose ist und/oder dass der Fahrzustand beim Befahren der Fahrstrecke von der Diagnose abhängt und/oder dass ein Zeitpunkt zum Befahren der Fahrstrecke an die Diagnose im automatisierten Fahrbetrieb angepasst wird. Diagnosis in automated driving operation is such that the choice of the route depends on the diagnosis and / or that the driving condition when driving on the route depends on the diagnosis and / or that a time for driving the route is adapted to the diagnosis in automated driving.
PCT/EP2017/062206 2016-06-03 2017-05-22 Method and device for carrying out a diagnosis WO2017207309A1 (en)

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