EP2296952A1 - Tactile driver feedback regarding the operational readiness of a vehicle - Google Patents

Tactile driver feedback regarding the operational readiness of a vehicle

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Publication number
EP2296952A1
EP2296952A1 EP09772211A EP09772211A EP2296952A1 EP 2296952 A1 EP2296952 A1 EP 2296952A1 EP 09772211 A EP09772211 A EP 09772211A EP 09772211 A EP09772211 A EP 09772211A EP 2296952 A1 EP2296952 A1 EP 2296952A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
driver
driver feedback
message
feedback
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
EP09772211A
Other languages
German (de)
French (fr)
Inventor
Cornelia Beruscha
Bernd Peichl
Herbert Prickarz
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 EP2296952A1 publication Critical patent/EP2296952A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • 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
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W50/16—Tactile feedback to the driver, e.g. vibration or force feedback to the driver on the steering wheel or the accelerator pedal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2002/981—Warning systems, e.g. the seat or seat parts vibrates to warn the passenger when facing a danger
    • 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
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/143—Alarm means
    • 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
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/146—Display means

Definitions

  • the invention relates to a method for generating a tactile driver feedback regarding the operational readiness of a vehicle, in particular a hybrid vehicle.
  • Modern vehicles provide the driver due to their particular smoothness and very good decoupling of noise and / or vibration of the drive train very little or no feedback in terms of their operational readiness.
  • hybrid vehicles in particular, when they are operated with the electric motor, the operational readiness for the driver is not readily apparent. After pressing a start button or an ignition key while the vehicle is ready to drive, especially if at high high-voltage battery level, the engine of the hybrid vehicle is not used, but the vehicle is started directly with the electric motor and the vehicle is to be moved purely electrically; However, this operational readiness is not recognized by the driver without further ado.
  • a display presentation or a display of purely optical displays, such as signal lamps often not sufficient to the driver to display the operational state of the vehicle sufficiently accurate, especially not if the driver is, for example, in a stressful situation or inattentive.
  • the driver is in this case about the actual state of his vehicle, namely, whether he can start by mere kick on the accelerator pedal, not sufficiently clear.
  • the driver is provided a tangible driver feedback regarding the operational readiness of his vehicle, which informs him without a need for specific attention about the operational readiness of his vehicle.
  • a method for generating a tactile driver feedback regarding the operational readiness of a vehicle is proposed, in particular hybrid vehicle, wherein the driver feedback is generated depending on the state of a drive train of the vehicle.
  • Decisive for the operational readiness in the sense of a "driving off" is the state of the drive train of the vehicle, so in particular the available driving power on torque request of the driver.
  • the driver feedback is a vibration message.
  • a vibration message is one that communicates itself to the driver through vibration, ie through actively and passively perceivable changes in position of at least one object in space.
  • haptic vibrations come into consideration here, ie those which are actively felt by the driver and in which an active activity of the motor cortex is required, but in particular those which can be detected by way of the perception of passive stimuli. This considerably expands the range of sensible messages that may be considered, in particular requiring no active or even directed attention or active action by the driver. Namely, while the haptic perception an active feeling in the sense of a
  • the driver feedback is an acoustic message.
  • An acoustic message is in the broadest sense also a vibration message or includes a vibration message, but the vibration is at least partially carried out in a perceptible for the human sense of hearing frequency range or generated by human perceptible frequencies.
  • the acoustic perception is as well as the perception of a general vibration message unplayed, so it is in particular no active looking at the driver as required for an optical message.
  • the acoustic message is a modulated engine noise.
  • the engine noise is either stored or artificially generated, especially modulated by volume and frequency response, giving the driver the perception of a conventional internal combustion engine.
  • the driver habitually connects the available standing of the vehicle, in particular namely the readiness of the drive train to provide propulsion to the vehicle.
  • the driver feedback is preferably provided on a vehicle device in contact with the driver of the vehicle.
  • a vehicle device in contact with the driver of the vehicle.
  • all parts of the vehicle device as such into consideration, which are in contact with the driver. These are, in particular, those that he or she touches in a targeted manner or with which he or she is otherwise in contact, even unintentionally and without any specific intervention.
  • a steering wheel in a method training as a vehicle device, can be used, while in another method training alternatively or additionally as a vehicle device, a seat, in particular a driver's seat, is used.
  • a seat in particular a driver's seat
  • the embodiment of the method using the driver's seat is very advantageous because the driver is accustomed to draw conclusions about the state of the vehicle, the road and certain movement processes via stimuli mediated by and / or by means of the driver's seat.
  • the driver feedback is a continuous message. It is therefore continued.
  • the driver feedback is a time-limited message, ie one that exists only for a certain period of time. The period may be longer or shorter.
  • the driver feedback is a message repeated at certain time intervals, in particular periodically.
  • the driver is reminded at certain time intervals, in particular periodically, of the ready-to-operate state of the vehicle. This is particularly advantageous for longer life, for example, in front of a red light, closed railroad crossings or at a traffic jam.
  • the driver is reminded of the operational state of his vehicle and prevented, for example, from leaving the vehicle without thinking.
  • this memory can be an occasion for the driver to switch off his vehicle to save energy.
  • the driver feedback can be generated by the vehicle without the interposition of a separate evaluation device which receives, for example via sensors, conditions of the vehicle or the surroundings of the vehicle. Rather, it is possible to cause the driver feedback directly via the control unit of the vehicle, such as in the manner in which a display or other visual display for signaling an operational state of the vehicle, for example in hybrid vehicles takes place.
  • the figure shows a vehicle with apparatus and method for generating tactile driver feedback.
  • Figure 1 shows a vehicle 1, namely a motor vehicle 2, which is designed as a hybrid vehicle 3 with drive by an internal combustion engine 4 and an electric motor 5, and wherein the internal combustion engine 4 and
  • Electric motor 5 are controlled and switched by a control unit 6 or by a control unit network in their operating states and bring their mechanical power output via a gear 7 and drive shafts 8 on the wheels 9 to drive the vehicle.
  • the vehicle 1 has a passenger compartment 11 for receiving a driver 12 and other passengers, not shown, and / or loads.
  • a driver's seat 13 is provided, which is configured in a conventional arrangement in front of a dashboard 14 and a steering wheel 15.
  • the electric motor 5 or both can be used, wherein the selection takes place depending on the state of charge of batteries, not shown, for the electric motor 5 via the control unit 6.
  • such a selection of the drive can also be effected by the driver 12.
  • unrepresented accelerator pedal attach a torque request to the controller 6, which then converts via the transmission 7 and either the engine 4 or the electric motor 5 or optionally both the torque request in a rotational movement of the wheels 9 and thus the vehicle 1 moves.
  • the usual noise from the engine 4 noise and / or vibration backdrop is not given to the driver 12, which may be in unfavorable situations or in great inattention of the driver 12 confusion about the state of the drive train 10 , in particular on whether the vehicle will respond to a torque request, ie is ready to drive.
  • a signaling element 17 is arranged under the driver's seat 13 as a vehicle device 16, namely a vibration element 18, which communicates with the control device 6 via suitable connecting lines, not shown. The state of the drive train 10 is transmitted to the vehicle device 16.
  • the control unit 6 which is responsible for the control and switching of internal combustion engine 4 and electric motor 5, the operational readiness of the drive train 10, in particular after restart of the electric motor 5 is present, via the not shown suitable electrical connections, the vibrating element 18 under the driver's seat 13th actuated, so that a driver feedback 19 from the vibrating element 18 and the signaling element 17 to the driver 12 via the vehicle device 16, namely the driver's seat 13, is introduced.
  • the driver 12 thus perceives, via his sitting in the driver's seat 13, the driver feedback 19 due to the vibration of the vibration element 18, so that for him the state of the drive train 10 can be seen as ready for operation.
  • the steering wheel 15 via the signaling element 17 or a further signaling element 17 can be used to generate a driver feedback 19 as a further vehicle device 16.
  • driver feedback 19 can be provided to execute the driver feedback 19 periodically, that is to say at essentially the same time intervals, for a specific time, in order to provide the driver 12 with regular feedback about the driver R. 323738 7
  • the driver feedback is formed here as a vibration message 20.
  • This 5 has the advantage that it can be perceived by the driver 12 unconsciously and without purposeful attention. Further, it has the advantage that it can be designed to be similar to, or similar to, the commonly driven motor vehicles equipped with internal combustion engines 4 when operating with internal combustion engine 4. In this respect, there is no learning need for the driver 12 and no settling-in period.
  • the driver feedback 19 may additionally be an acoustic message 21, wherein both the vibration message 20 and the acoustic message 15 21 may alternatively or cumulatively and with other, not shown messages, in particular optical signaling, for example via displays not shown in the dashboard 14 or other suitable facilities can be combined.

Abstract

The invention relates to a method for generating a tactile driver feedback regarding the operational readiness of a vehicle, particularly a hybrid vehicle, wherein the driver feedback is generated as a function of the state of a drive train of the vehicle.

Description

R. 323738 1 R. 323738 1
Beschreibungdescription
Titel Fühlbare Fahrerrückmeldung bezüglich der Betriebsbereitschaft eines FahrzeugsTitle Sensible driver feedback regarding the operational readiness of a vehicle
Die Erfindung betrifft ein Verfahren zur Erzeugung einer fühlbaren Fahrerrückmeldung bezüglich der Betriebsbereitschaft eines Fahrzeugs, insbesondere Hybridfahrzeugs.The invention relates to a method for generating a tactile driver feedback regarding the operational readiness of a vehicle, in particular a hybrid vehicle.
Stand der TechnikState of the art
Moderne Fahrzeuge liefern dem Fahrer aufgrund ihrer besonderen Laufruhe und sehr guten Entkoppelung von Geräuschen und/oder Vibrationen des Antriebsstrangs sehr wenig oder keine Rückmeldung in Hinblick auf ihre Betriebsbereitschaft. Insbesondere bei Hybridfahrzeugen ist dann, wenn sie mit dem Elektromotor betrieben werden, die Betriebsbereitschaft für den Fahrer nicht ohne Weiteres ersichtlich. Nach Betätigung eines Startknopfes oder eines Zündschlüssels ist das Fahrzeug zwar fahrbereit, insbesondere dann, wenn bei hohem Hochvoltbatteriestand die Brennkraftmaschine des Hybridfahrzeugs nicht verwendet wird, sondern der Fahrzeugstart unmittelbar mit dem Elektromotor erfolgt und das Fahrzeug rein elektrisch bewegt werden soll; diese Betriebsbereitschaft wird vom Fahrer aber nicht ohne Weiteres erkannt. Insbesondere in dieser Phase der Fahrzeuginbetriebnahme ist eine Displaydarstellung oder eine Darstellung von rein optischen Anzeigen, beispielsweise Signallampen, häufig nicht ausreichend, um dem Fahrer den betriebsbereiten Zustand des Fahrzeugs hinreichend genau anzuzeigen, vor allem dann nicht, wenn der Fahrer sich beispielsweise in einer Stresssituation befindet oder unaufmerksam ist. Der Fahrer ist hierbei über den tatsächlichen Zustand seines Fahrzeugs, nämlich darüber, ob er durch bloßen Tritt auf das Gas-/Fahrpedal losfahren kann, nicht hinreichend deutlich unterrichtet. R. 323738 2Modern vehicles provide the driver due to their particular smoothness and very good decoupling of noise and / or vibration of the drive train very little or no feedback in terms of their operational readiness. In hybrid vehicles, in particular, when they are operated with the electric motor, the operational readiness for the driver is not readily apparent. After pressing a start button or an ignition key while the vehicle is ready to drive, especially if at high high-voltage battery level, the engine of the hybrid vehicle is not used, but the vehicle is started directly with the electric motor and the vehicle is to be moved purely electrically; However, this operational readiness is not recognized by the driver without further ado. In particular, in this phase of vehicle commissioning, a display presentation or a display of purely optical displays, such as signal lamps, often not sufficient to the driver to display the operational state of the vehicle sufficiently accurate, especially not if the driver is, for example, in a stressful situation or inattentive. The driver is in this case about the actual state of his vehicle, namely, whether he can start by mere kick on the accelerator pedal, not sufficiently clear. R. 323738 2
Aus der DE 10 2004 047545 A1 ist bereits eine haptische Fahrerrückmeldung am Lenkbedienelement zur Warnung eines Fahrers bekannt.From DE 10 2004 047545 A1 a haptic driver feedback on the steering control element for warning a driver is already known.
Offenbarung der ErfindungDisclosure of the invention
Vorteilhaft wird dem Fahrer eine fühlbare Fahrerrückmeldung hinsichtlich der Betriebsbereitschaft seines Fahrzeugs zur Verfügung gestellt, die ihn ohne ein Erfordernis gezielter Aufmerksamkeit über die Betriebsbereitschaft seines Fahrzeugs unterrichtet.Advantageously, the driver is provided a tangible driver feedback regarding the operational readiness of his vehicle, which informs him without a need for specific attention about the operational readiness of his vehicle.
Hierzu wird ein Verfahren zur Erzeugung einer fühlbaren Fahrerrückmeldung bezüglich der Betriebsbereitschaft eines Fahrzeugs vorgeschlagen, insbesondere Hybridfahrzeugs, wobei in Abhängigkeit des Zustandes eines Antriebsstrangs des Fahrzeugs die Fahrerrückmeldung erzeugt wird. Maßgeblich für die Betriebsbereitschaft im Sinne eines „Losfahrenkönnens" ist der Zustand des Antriebsstrangs des Fahrzeugs, also insbesondere das zur Verfügungstehen von Antriebsleistung auf Momentenanforderung des Fahrers.For this purpose, a method for generating a tactile driver feedback regarding the operational readiness of a vehicle is proposed, in particular hybrid vehicle, wherein the driver feedback is generated depending on the state of a drive train of the vehicle. Decisive for the operational readiness in the sense of a "driving off" is the state of the drive train of the vehicle, so in particular the available driving power on torque request of the driver.
In einer Form des Verfahrens ist die Fahrerrückmeldung eine Vibrationsmeldung. Eine Vibrationsmeldung ist im weitesten Sinne eine solche, die sich dem Fahrer durch Vibration, also durch aktiv und passiv erfühlbare Lageänderung mindestens eines Gegenstandes im Raum, mitteilt. Hierbei kommen insbesondere nicht lediglich haptische Vibrationen in Betracht, also solche, die vom Fahrer aktiv erfühlt werden und bei denen ein aktives Tätigwerden des motorischen Kortex erforderlich ist, sondern insbesondere solche, die im Wege der Wahrnehmung passiver Reizeinwirkungen erfasst werden können. Dies erweitert den Bereich der in Betracht kommenden, fühlbaren Meldungen beträchtlich, wobei insbesondere keine aktive oder gar gerichtete Aufmerksamkeit oder ein aktives Tun des Fahrers erforderlich ist. Während nämlich die haptische Wahrnehmung ein aktives Erfühlen im Sinne einesIn one form of the procedure, the driver feedback is a vibration message. In the broadest sense, a vibration message is one that communicates itself to the driver through vibration, ie through actively and passively perceivable changes in position of at least one object in space. In particular, not only haptic vibrations come into consideration here, ie those which are actively felt by the driver and in which an active activity of the motor cortex is required, but in particular those which can be detected by way of the perception of passive stimuli. This considerably expands the range of sensible messages that may be considered, in particular requiring no active or even directed attention or active action by the driver. Namely, while the haptic perception an active feeling in the sense of a
Überstreichens von Oberflächen, eines Drückens, Umfassens oder Nachfahrens von Konturen umfasst, reicht bei der Wahrnehmung passiver Reizeinwirkungen, wie beispielsweise einem Berührtwerden oder einem Gerüttelwerden, die vom Fahrer nicht aktiv bemühte Sensorik des menschlichen Körpers aus, um auf eine bestimmte Situation aufmerksam zu werden. R. 323738 3When sweeping surfaces, pressing, encompassing or trailing contours, in the perception of passive stimuli, such as being touched or shaken, the sensors of the human body, which are not actively sought by the driver, are sufficient to become aware of a particular situation. R. 323738 3
In einer weiteren Verfahrensausbildung ist die Fahrerrückmeldung eine akustische Meldung. Eine akustische Meldung ist im weitesten Sinne auch eine Vibrationsmeldung oder umfasst eine Vibrationsmeldung, wobei aber die Vibration zumindest teilweise in einem für den menschlichen Hörsinn wahrnehmbaren Frequenzbereich erfolgt oder vom Menschen wahrnehmbare Frequenzen erzeugt. Die akustische Wahrnehmung ist ebenso wie die Wahrnehmung einer generellen Vibrationsmeldung ungehchtet, es ist also insbesondere kein aktives Hinsehen des Fahrers wie bei einer optischen Meldung erforderlich.In a further procedural training, the driver feedback is an acoustic message. An acoustic message is in the broadest sense also a vibration message or includes a vibration message, but the vibration is at least partially carried out in a perceptible for the human sense of hearing frequency range or generated by human perceptible frequencies. The acoustic perception is as well as the perception of a general vibration message unplayed, so it is in particular no active looking at the driver as required for an optical message.
Bevorzugt ist die akustische Meldung ein moduliertes Motorgeräusch. Das Motorgeräusch ist entweder gespeichert oder wird künstlich erzeugt, insbesondere auch nach Lautstärke und Frequenzverlauf moduliert, wobei es dem Fahrer die Wahrnehmung einer üblichen Brennkraftmaschine gibt. Mit dem Wahrnehmen einer üblichen Brennkraftmaschine, insbesondere eines startenden Verbrennungsmotors, verbindet der Fahrer gewohnheitsmäßig das zur Verfügung stehen des Fahrzeugs, insbesondere nämlich die Bereitschaft des Antriebsstrangs, dem Fahrzeug Vortrieb zu gewähren.Preferably, the acoustic message is a modulated engine noise. The engine noise is either stored or artificially generated, especially modulated by volume and frequency response, giving the driver the perception of a conventional internal combustion engine. With the perception of a conventional internal combustion engine, in particular a starting internal combustion engine, the driver habitually connects the available standing of the vehicle, in particular namely the readiness of the drive train to provide propulsion to the vehicle.
Bevorzugt wird die Fahrerrückmeldung an einer mit dem Fahrer des Fahrzeugs in Kontakt stehenden Fahrzeugeinrichtung zur Verfügung gestellt. Hier kommen alle Teile der Fahrzeugeinrichtung als solcher in Betracht, die mit dem Fahrer in Berührung stehen. Das sind insbesondere solche, die er gezielt anfasst oder mit denen er in sonstiger Weise, auch unabsichtlich und ohne konkretes Zutun, in Berührung steht.The driver feedback is preferably provided on a vehicle device in contact with the driver of the vehicle. Here are all parts of the vehicle device as such into consideration, which are in contact with the driver. These are, in particular, those that he or she touches in a targeted manner or with which he or she is otherwise in contact, even unintentionally and without any specific intervention.
Beispielsweise kann in einer Verfahrensausbildung als Fahrzeugeinrichtung ein Lenkrad verwendet werden, während in einer anderen Verfahrensausbildung alternativ oder zusätzlich als Fahrzeugeinrichtung ein Sitz, insbesondere ein Fahrersitz, verwendet wird. Insbesondere die Ausgestaltung des Verfahrens mit Verwendung des Fahrersitzes ist sehr vorteilhaft, weil der Fahrer es gewohnt ist, über durch und/oder mittels des Fahrersitzes vermittelten Reizen Rückschlüsse auf den Zustand des Fahrzeugs, der Straße und bestimmte Bewegungsvorgänge zu ziehen. R. 323738 4For example, in a method training as a vehicle device, a steering wheel can be used, while in another method training alternatively or additionally as a vehicle device, a seat, in particular a driver's seat, is used. In particular, the embodiment of the method using the driver's seat is very advantageous because the driver is accustomed to draw conclusions about the state of the vehicle, the road and certain movement processes via stimuli mediated by and / or by means of the driver's seat. R. 323738 4
In einer Verfahrensausbildung ist die Fahrerrückmeldung eine zeitlich kontinuierlich wirkende Meldung. Sie erfolgt demzufolge fortgesetzt. In einer anderen Verfahrensausbildung ist die Fahrerrückmeldung eine zeitlich begrenzte Meldung, also eine solche, die nur für einen bestimmten Zeitraum vorliegt. Der Zeitraum kann länger oder kürzer gewählt sein. Insbesondere ist es auch möglich, eine zeitlich zunächst kontinuierliche Meldung bei Vorliegen bestimmter Parameter, beispielsweise einer geeigneten Quittierung durch den Fahrer oder bei Bewegung des Fahrzeugs, in eine zeitlich begrenzte Meldung umzuwandeln oder durch zeitlich begrenzte Meldungen zu ersetzen.In a procedural training, the driver feedback is a continuous message. It is therefore continued. In another procedural training, the driver feedback is a time-limited message, ie one that exists only for a certain period of time. The period may be longer or shorter. In particular, it is also possible to convert a temporally first continuous message in the presence of certain parameters, such as a suitable acknowledgment by the driver or when moving the vehicle in a time-limited message or replace it with time-limited messages.
In einer weiteren Verfahrensausbildung ist die Fahrerrückmeldung eine in bestimmten Zeitabständen, insbesondere periodisch, wiederholte Meldung. Hierdurch lässt sich sehr vorteilhaft erreichen, dass der Fahrer in gewissen Zeitabständen, insbesondere nämlich periodisch, an den betriebsbereiten Zustand des Fahrzeugs erinnert wird. Dies ist insbesondere bei längeren Standzeiten vorteilhaft, beispielsweise vor einer roten Ampel, geschlossenen Bahnübergängen oder an einem Stau. Durch solche wiederholten Meldungen wird der Fahrer an den betriebsbereiten Zustand seines Fahrzeugs erinnert und beispielsweise daran gehindert, das Fahrzeug unbedacht zu verlassen. Ebenso kann diese Erinnerung ein Anlass für den Fahrer sein, sein Fahrzeug zur Energieeinsparung abzuschalten.In a further method training, the driver feedback is a message repeated at certain time intervals, in particular periodically. In this way, it can be achieved very advantageously that the driver is reminded at certain time intervals, in particular periodically, of the ready-to-operate state of the vehicle. This is particularly advantageous for longer life, for example, in front of a red light, closed railroad crossings or at a traffic jam. By such repeated messages, the driver is reminded of the operational state of his vehicle and prevented, for example, from leaving the vehicle without thinking. Likewise, this memory can be an occasion for the driver to switch off his vehicle to save energy.
Wesentlich ist weiter, dass die Fahrerrückmeldung von dem Fahrzeug ohne Zwischenschaltung einer gesonderten Auswerteeinrichtung erzeugt werden kann, die beispielsweise über Sensoren Zustände des Fahrzeugs oder der Umgebung des Fahrzeugs aufnimmt. Vielmehr ist es möglich, die Fahrerrückmeldung direkt über das Steuergerät des Fahrzeugs zu veranlassen, etwa in der Art und Weise, wie eine Displayanzeige oder eine sonstige optische Anzeige zur Signalisierung eines betriebsbereiten Zustandes des Fahrzeugs, beispielsweise in Hybridfahrzeugen, erfolgt.It is also essential that the driver feedback can be generated by the vehicle without the interposition of a separate evaluation device which receives, for example via sensors, conditions of the vehicle or the surroundings of the vehicle. Rather, it is possible to cause the driver feedback directly via the control unit of the vehicle, such as in the manner in which a display or other visual display for signaling an operational state of the vehicle, for example in hybrid vehicles takes place.
Weitere vorteilhafte Ausführungsformen ergeben sich aus den Unteransprüchen und aus Kombinationen derselben. R. 323738 5Further advantageous embodiments will become apparent from the dependent claims and combinations thereof. R. 323738 5
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert, ohne aber hierauf beschränkt zu sein.The invention will be explained in more detail with reference to an embodiment, but without being limited thereto.
Es zeigtIt shows
die Figur ein Fahrzeug mit Vorrichtung und Verfahren zur Erzeugung einer fühlbaren Fahrerrückmeldung.the figure shows a vehicle with apparatus and method for generating tactile driver feedback.
Ausführungsform(en) der ErfindungEmbodiment (s) of the invention
Figur 1 zeigt ein Fahrzeug 1 , nämlich ein Kraftfahrzeug 2, das als Hybridfahrzeug 3 mit Antrieb durch eine Brennkraftmaschine 4 und einen Elektromotor 5 ausgebildet ist, und wobei Brennkraftmaschine 4 sowieFigure 1 shows a vehicle 1, namely a motor vehicle 2, which is designed as a hybrid vehicle 3 with drive by an internal combustion engine 4 and an electric motor 5, and wherein the internal combustion engine 4 and
Elektromotor 5 von einem Steuergerät 6 oder von einem Steuergeräteverbund in ihren Betriebszuständen gesteuert und geschaltet werden und ihre mechanische Abgabeleistung über ein Getriebe 7 und Antriebswellen 8 auf die Räder 9 zum Antrieb des Fahrzeugs bringen. Die Brennkraftmaschine 4, der Elektromotor 5, das Getriebe 7, die Antriebswellen 8 sowie die Räder 9 bilden hierbei einen Antriebsstrang 10 aus.Electric motor 5 are controlled and switched by a control unit 6 or by a control unit network in their operating states and bring their mechanical power output via a gear 7 and drive shafts 8 on the wheels 9 to drive the vehicle. The internal combustion engine 4, the electric motor 5, the transmission 7, the drive shafts 8 and the wheels 9 in this case form a drive train 10.
Das Fahrzeug 1 weist eine Fahrgastzelle 11 zur Aufnahme eines Fahrers 12 und weiterer, nicht dargestellter Passagiere und/oder von Lasten auf. Für den Fahrer 12 ist ein Fahrersitz 13 vorgesehen, der in üblicher Anordnung vor einem Armaturenbrett 14 sowie einem Lenkrad 15 ausgestaltet ist. Zum Antrieb des Kraftfahrzeugs 2 können wahlweise die Brennkraftmaschine 4, der Elektromotor 5 oder beide verwendet werden, wobei die Auswahl abhängig vom Ladezustand von nicht dargestellten Batterien für den Elektromotor 5 über das Steuergerät 6 erfolgt. Alternativ oder zusätzlich kann eine solche Auswahl des Antriebs auch von dem Fahrer 12 bewirkt werden.The vehicle 1 has a passenger compartment 11 for receiving a driver 12 and other passengers, not shown, and / or loads. For the driver 12, a driver's seat 13 is provided, which is configured in a conventional arrangement in front of a dashboard 14 and a steering wheel 15. For driving the motor vehicle 2, either the internal combustion engine 4, the electric motor 5 or both can be used, wherein the selection takes place depending on the state of charge of batteries, not shown, for the electric motor 5 via the control unit 6. Alternatively or additionally, such a selection of the drive can also be effected by the driver 12.
Bei Betriebsbereitschaft des Antriebsstrangs 10, also dann, wenn der Antrieb durch mindestens die Brennkraftmaschine 4 oder den Elektromotor 5 auf die Räder 9 sichergestellt ist, kann der Fahrer 12 durch Druck auf beispielsweise ein R. 323738 6When operational readiness of the drive train 10, that is, when the drive is ensured by at least the internal combustion engine 4 or the electric motor 5 to the wheels 9, the driver 12 by pressing on, for example, a R. 323738 6
nicht dargestelltes Gaspedal eine Momentenanforderung an das Steuergerät 6 anbringen, wobei dieses dann über das Getriebe 7 und entweder die Brennkraftmaschine 4 oder den Elektromotor 5 oder wahlweise beide die Momentenanforderung in eine Drehbewegung der Räder 9 umsetzt und somit das Fahrzeug 1 fortbewegt. Insbesondere bei Betrieb des Fahrzeugs 1 mit dem Elektromotor 5 ist für den Fahrer 12 die von der Brennkraftmaschine 4 gewohnte Geräusch- und/oder Vibrationskulisse nicht gegeben, weshalb in ungünstigen Situationen oder bei großer Unaufmerksamkeit des Fahrers 12 Unklarheit über den Zustand des Antriebsstrangs 10 bestehen kann, insbesondere darüber, ob das Fahrzeug auf eine Momentenanforderung reagieren wird, also fahrbereit ist. Aus diesem Grunde ist unter dem Fahrersitz 13 als eine Fahrzeugeinrichtung 16 ein Signalisierungselement 17 angeordnet, nämlich ein Vibrationselement 18, das über nicht dargestellte geeignete Verbindungsleitungen mit dem Steuergerät 6 in Verbindung steht. Der Zustand des Antriebsstrangs 10 wird an die Fahrzeugeinrichtung 16 übermittelt.unrepresented accelerator pedal attach a torque request to the controller 6, which then converts via the transmission 7 and either the engine 4 or the electric motor 5 or optionally both the torque request in a rotational movement of the wheels 9 and thus the vehicle 1 moves. In particular, when operating the vehicle 1 with the electric motor 5, the usual noise from the engine 4 noise and / or vibration backdrop is not given to the driver 12, which may be in unfavorable situations or in great inattention of the driver 12 confusion about the state of the drive train 10 , in particular on whether the vehicle will respond to a torque request, ie is ready to drive. For this reason, a signaling element 17 is arranged under the driver's seat 13 as a vehicle device 16, namely a vibration element 18, which communicates with the control device 6 via suitable connecting lines, not shown. The state of the drive train 10 is transmitted to the vehicle device 16.
Wenn über das Steuergerät 6, das für die Steuerung und Schaltung von Brennkraftmaschine 4 und Elektromotor 5 zuständig ist, die Betriebsbereitschaft des Antriebsstrangs 10, insbesondere nach Neustart des Elektromotors 5 vorliegt, wird über die nicht dargestellten geeigneten elektrischen Verbindungen das Vibrationselement 18 unter dem Fahrersitz 13 betätigt, so dass eine Fahrerrückmeldung 19 von dem Vibrationselement 18 beziehungsweise dem Signalisierungselement 17 auf den Fahrer 12 über die Fahrzeugeinrichtung 16, nämlich den Fahrersitz 13, eingebracht wird. Der Fahrer 12 nimmt also, über sein Sitzen im Fahrersitz 13, die Fahrerrückmeldung 19 durch die Vibration des Vibrationselements 18 wahr, so dass hierdurch für ihn der Zustand des Antriebsstrangs 10 als betriebsbereit erkennbar ist. Alternativ oder zusätzlich kann als weitere Fahrzeugeinrichtung 16 auch das Lenkrad 15 über das Signalisierungselement 17 oder ein weiteres Signalisierungselement 17 (bezüglich des Lenkrads 15 hier nicht dargestellt) zur Erzeugung einer Fahrerrückmeldung 19 verwendet werden.If via the control unit 6, which is responsible for the control and switching of internal combustion engine 4 and electric motor 5, the operational readiness of the drive train 10, in particular after restart of the electric motor 5 is present, via the not shown suitable electrical connections, the vibrating element 18 under the driver's seat 13th actuated, so that a driver feedback 19 from the vibrating element 18 and the signaling element 17 to the driver 12 via the vehicle device 16, namely the driver's seat 13, is introduced. The driver 12 thus perceives, via his sitting in the driver's seat 13, the driver feedback 19 due to the vibration of the vibration element 18, so that for him the state of the drive train 10 can be seen as ready for operation. Alternatively or additionally, the steering wheel 15 via the signaling element 17 or a further signaling element 17 (with respect to the steering wheel 15 not shown here) can be used to generate a driver feedback 19 as a further vehicle device 16.
Insbesondere kann vorgesehen sein, die Fahrerrückmeldung 19 periodisch, also in im Wesentlichen gleichen zeitlichen Abständen, für eine bestimmte Zeit auszuführen, um dem Fahrer 12 eine regelmäßige Rückmeldung über die R. 323738 7In particular, it can be provided to execute the driver feedback 19 periodically, that is to say at essentially the same time intervals, for a specific time, in order to provide the driver 12 with regular feedback about the driver R. 323738 7
Betriebsbereitschaft des Antriebsstrangs 10 zum Zwecke der Fortbewegung des Fahrzeugs 1 zu geben.Operational readiness of the drive train 10 for the purpose of locomotion of the vehicle 1 to give.
Die Fahrerrückmeldung ist hierbei als Vibrationsmeldung 20 ausgebildet. Diese 5 hat den Vorteil, dass sie von dem Fahrer 12 auch unbewusst und ohne zielgerichtete Aufmerksamkeit wahrgenommen werden kann. Weiter hat sie den Vorteil, dass sie so ausgestaltet werden kann, dass sie den von gewöhnlich angetriebenen, mit Brennkraftmaschinen 4 ausgerüsteten Kraftfahrzeugen beim Betrieb mit Brennkraftmaschine 4 gewohnten Wahrnehmungen ähnelt oder io gleicht. Insofern besteht für den Fahrer 12 kein Lernbedarf und keine Eingewöhnungszeit.The driver feedback is formed here as a vibration message 20. This 5 has the advantage that it can be perceived by the driver 12 unconsciously and without purposeful attention. Further, it has the advantage that it can be designed to be similar to, or similar to, the commonly driven motor vehicles equipped with internal combustion engines 4 when operating with internal combustion engine 4. In this respect, there is no learning need for the driver 12 and no settling-in period.
Die Fahrerrückmeldung 19 kann zusätzlich auch eine akustische Meldung 21 sein, wobei sowohl die Vibrationsmeldung 20 als auch die akustische Meldung 15 21 alternativ oder kumulativ vorliegen können sowie mit weiteren, nicht dargestellten Meldungen, insbesondere optischen Signalisierungen, beispielsweise über nicht dargestellte Displays im Armaturenbrett 14 oder anderen geeigneten Einrichtungen, kombiniert werden können. The driver feedback 19 may additionally be an acoustic message 21, wherein both the vibration message 20 and the acoustic message 15 21 may alternatively or cumulatively and with other, not shown messages, in particular optical signaling, for example via displays not shown in the dashboard 14 or other suitable facilities can be combined.

Claims

R. 323738 8Ansprüche R. 323738 8 claims
1. Verfahren zur Erzeugung einer fühlbaren Fahrerrückmeldung bezüglich der Betriebsbereitschaft eines Fahrzeugs, insbesondere Hybridfahrzeugs, wobei in Abhängigkeit des Zustands eines Antriebsstrangs des Fahrzeugs die Fahrerrückmeldung erzeugt wird.A method for generating a tactile driver feedback regarding the operational readiness of a vehicle, in particular a hybrid vehicle, wherein the driver feedback is generated as a function of the state of a drive train of the vehicle.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die Fahrerrückmeldung eine Vibrationsmeldung ist.2. The method according to claim 1, characterized in that the driver feedback is a vibration message.
3. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fahrerrückmeldung eine akustische Meldung ist.3. The method according to any one of the preceding claims, characterized in that the driver feedback is an acoustic message.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die akustische Meldung ein moduliertes Motorgeräusch ist.4. The method according to claim 3, characterized in that the acoustic message is a modulated engine noise.
5. Verfahren nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass die Fahrerrückmeldung an einer mit dem Fahrer des Fahrzeugs in Kontakt stehenden Fahrzeugeinrichtung zur Verfügung gestellt wird.5. The method according to any one of claims 1 to 2, characterized in that the driver feedback is provided on a standing in contact with the driver of the vehicle in-vehicle device.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass als Fahrzeugeinrichtung ein Lenkrad verwendet wird.6. The method according to claim 5, characterized in that a steering wheel is used as a vehicle device.
7. Verfahren nach einem der Ansprüche 5 bis 6, dadurch gekennzeichnet, dass als Fahrzeugeinrichtung ein Sitz, insbesondere Fahrersitz, verwendet wird.7. The method according to any one of claims 5 to 6, characterized in that a seat, in particular driver's seat, is used as the vehicle device.
8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fahrerrückmeldung eine zeitlich kontinuierlich wirkende Meldung ist.8. The method according to any one of the preceding claims, characterized in that the driver feedback is a temporally continuous message.
9. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Fahrerrückmeldung eine zeitlich begrenzte Meldung ist. R. 323738 99. The method according to any one of claims 1 to 7, characterized in that the driver feedback is a time-limited message. R. 323738 9
10.Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Fahrerrückmeldung eine in bestimmten Zeitabständen, insbesondere periodisch wiederholte Meldung ist.10.A method according to any one of claims 1 to 7, characterized in that the driver feedback is at certain time intervals, in particular periodically repeated message.
11.Vorrichtung zum Erzeugen einer fühlbaren Fahrerrückmeldung mit einer Einrichtung zur Ermittlung eines Zustands eines Antriebsstrangs eines Fahrzeugs, wobei in Abhängigkeit des Zustands eines Antriebsstrangs des Fahrzeugs die Fahrerrückmeldung erzeugt wird.11.A device for generating a tactile driver feedback with a device for determining a state of a drive train of a vehicle, wherein the driver feedback is generated depending on the state of a drive train of the vehicle.
12. Vorrichtung nach Anspruch 11 , dadurch gekennzeichnet, dass mit der Ermittlung des Zustands des Antriebsstrangs des Fahrzeugs eine Betriebsbereitschaft des Fahrzeugs ermittelt wird. 12. The device according to claim 11, characterized in that an operational readiness of the vehicle is determined by determining the state of the drive train of the vehicle.
EP09772211A 2008-07-03 2009-04-30 Tactile driver feedback regarding the operational readiness of a vehicle Ceased EP2296952A1 (en)

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DE102008040113A DE102008040113A1 (en) 2008-07-03 2008-07-03 Sensible driver feedback regarding the operational readiness of a vehicle
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