DE19852315A1 - Steering wheel for motor vehicle has rim with device for varying tactile characteristics of at least one section of rim with chamber filled with fluid whose pressure or viscosity can be varied - Google Patents

Steering wheel for motor vehicle has rim with device for varying tactile characteristics of at least one section of rim with chamber filled with fluid whose pressure or viscosity can be varied

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Publication number
DE19852315A1
DE19852315A1 DE1998152315 DE19852315A DE19852315A1 DE 19852315 A1 DE19852315 A1 DE 19852315A1 DE 1998152315 DE1998152315 DE 1998152315 DE 19852315 A DE19852315 A DE 19852315A DE 19852315 A1 DE19852315 A1 DE 19852315A1
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DE
Germany
Prior art keywords
steering wheel
rim
wheel rim
wheel according
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE1998152315
Other languages
German (de)
Inventor
Klaus Bengler
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE1998152315 priority Critical patent/DE19852315A1/en
Publication of DE19852315A1 publication Critical patent/DE19852315A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • B62D1/046—Adaptations on rotatable parts of the steering wheel for accommodation of switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • B62D1/06—Rims, e.g. with heating means; Rim covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B62D15/029—Steering assistants using warnings or proposing actions to the driver without influencing the steering system

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)

Abstract

The steering wheel has a rim (2) and a device for varying the tactile characteristics of at least one section (4) of the rim with a chamber filled with fluid and an arrangement for varying the pressure of the fluid, e.g. with vehicle operating states. The annular chamber can be mounted on a supporting structure for the steering wheel rim. The viscosity of the fluid can be varied. An Independent claim is also included for a method of driving a steering wheel.

Description

Die Erfindung betrifft ein Lenkrad für ein Kraftfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a steering wheel for a motor vehicle according to the preamble of Claim 1.

Aufgabe der Erfindung ist es, das bekannte Lenkrad weiterzubilden, insbesondere weitere Funktionen in das Lenkrad zu integrieren.The object of the invention is to develop the known steering wheel, in particular integrate additional functions into the steering wheel.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Die Ansprüche 11 bis 13 beschreiben Verfahren zur Ansteuerung eines erfindungsgemäßen Lenkra­ des.This object is solved by the features of claim 1. Claims 11 to 13 describe methods for controlling a steering wheel according to the invention of.

Kerngedanke der Erfindung nach Anspruch 1 ist es, die haptischen Eigenschaften des Lenkradkranzes, insbesondere dessen Härte und Griffigkeit, zu verändern. Be­ vorzugt sind nur diejenigen Bereiche des Lenkradkranzes mit einer entsprechenden Einrichtung zur Veränderung der haptischen Eigenschaften versehen, die übli­ cherweise zur Einleitung von Lenkbewegungen verwendet werden oder zur Auflage der Hände dienen.The main idea of the invention according to claim 1 is the haptic properties to change the steering wheel rim, especially its hardness and grip. Be only those areas of the steering wheel rim with a corresponding are preferred Provide device for changing the haptic properties, the usual be used to initiate steering movements or to support serve the hands.

Anspruch 2 beschreibt eine Einrichtung zur Beeinflussung der haptischen Eigen­ schaften des Lenkradkranzes mit einer Kammer für ein flüssiges oder gasförmiges Fluid. Die Kammer ist beispielsweise ringförmig um einen tragenden Kern des Lenk­ radkranzes angeordnet (Anspruch 3). Gemäß Anspruch 4 kann der Druck des Fluids und damit die Härte des Lenkradkranzes beispielsweise durch eine Pumpe verändert werden. Alternativ schlägt Anspruch 5 vor, die Härte des Lenkradkranzes durch Änderung der Viskosität des Fluids zu beeinflussen. In beiden Fällen ist eine flexible Ummantelung des Lenkradkranzes vorzusehen, die die Änderung des Zu­ stands des Fluids an den Fahrzeugnutzer "weitergeben" kann (Anspruch 6).Claim 2 describes a device for influencing the haptic Eigen steering the steering wheel rim with a chamber for a liquid or gaseous  Fluid. The chamber is, for example, ring-shaped around a supporting core of the steering wheel rim arranged (claim 3). According to claim 4, the pressure of Fluids and thus the hardness of the steering wheel rim, for example by a pump to be changed. Alternatively, claim 5 proposes the hardness of the steering wheel rim by changing the viscosity of the fluid. In both cases there is one provide flexible sheathing of the steering wheel rim, which the change of the To status of the fluid can "pass on" to the vehicle user (claim 6).

Zwar ist aus der JP 3279074 A1 ist ein Lenkrad bekannt, an dessen Lenkradkranz umlaufend ein Schlauch mit einem Fluid eingelassen ist. Durch Druck auf den Schlauch spricht ein Drucksensor im Bereich der Lenkradspeichen an. Im Unter­ schied zur vorliegenden Erfindung ist jedoch keine Einrichtung zur Veränderung des Drucks im Schlauch vorgesehen.A steering wheel is known from JP 3279074 A1, on its steering wheel rim A hose with a fluid is embedded all around. By pressing the Hose responds to a pressure sensor in the area of the steering wheel spokes. In the sub differed from the present invention, however, is not a device for changing the Pressure provided in the hose.

Gemäß der Weiterbildung der Erfindung nach Anspruch 7 ist als Fluid eine rheologi­ sche Flüssigkeit vorgesehen, deren Viskosität in Abhängigkeit von einem elektri­ schen oder magnetischen Feld veränderbar ist. Insbesondere kommen hierbei elek­ trorheologische Flüssigkeiten in Betracht, da das hierfür benötigte elektrische Feld mit einem geringen Energieaufwand aufgebaut werden kann, während für das Ma­ gnetfeld zur Beeinflussung einer magnetorheologischen Flüssigkeit hohe Strom­ stärken erforderlich sind. Aufgrund der geringeren notwendigen Feldstärken ist zu­ dem bei den Fahrzeugnutzern eine größere Akzeptanz elektrorheologischer Flüs­ sigkeiten gegenüber magnetorheologischen Flüssigkeiten zu erwarten.According to the development of the invention according to claim 7, the fluid is a rheological cal liquid is provided, the viscosity of which depends on an electrical or magnetic field is changeable. In particular, here come elec trorheological fluids, because the electric field required for this can be built with little energy, while for Ma magnetic field for influencing a magnetorheological fluid high current strengths are required. Due to the lower required field strengths is too which has a greater acceptance among electrorheological rivers among vehicle users liquids compared to magnetorheological fluids.

Die Ansprüche 8 und 9 beschreiben den Aufbau eines Lenkrades mit einer Einrich­ tung zur Veränderung der haptischen Eigenschaften des Lenkradkranzes über eine elektrorheologische Flüssigkeit.Claims 8 and 9 describe the structure of a steering wheel with a device tion to change the haptic properties of the steering wheel rim via a electrorheological fluid.

Die Bereiche des Lenkradkranzes, die mit einer erfindungsgemäßen Einrichtung versehen sind, heben sich gemäß Anspruch 10 durch eine vom übrigen Lenkrad­ kranz abweichende optische und/oder haptische Gestaltung ab. The areas of the steering wheel rim with an inventive device are provided, according to claim 10 stand out from the rest of the steering wheel wreath deviating optical and / or haptic design.  

Durch das erfindungsgemäße Verfahren nach Anspruch 11 erfolgt eine Anpassung der Härte (bestimmter Griffbereiche) des Lenkradkranzes an den momentanen Fahrzustand des Fahrzeuges. So erfolgt beispielsweise bei hohen Längs- oder Querbeschleunigungen des Fahrzeuges, die durch entsprechende Sensoren erfaßt werden, eine dynamische Verhärtung des Lenkradkranzes. Damit wird dem Fahrer die aktuelle Fahrdynamik auf haptischem Wege rückgemeldet, in dem bei "sportlicher Fahrweise" der Lenkradkranz spürbar härter ist als bei "komfortbetonter Fahrweise".An adaptation is carried out by the method according to the invention according to claim 11 the hardness (certain grip areas) of the steering wheel rim at the moment Driving state of the vehicle. For example, at high longitudinal or Lateral accelerations of the vehicle, detected by appropriate sensors become a dynamic hardening of the steering wheel rim. This is the driver the current driving dynamics are reported haptically, in the "sporty driving style" the steering wheel rim is noticeably harder than "comfort-oriented" Driving style ".

Gemäß Anspruch 12 werden die haptischen Eigenschaften des Lenkradkranzes be­ stimmt durch den Betriebsmodus von Aggregaten, die die Fahrdynamik des Kraft­ fahrzeuges beeinflussen. So ist es beispielsweise möglich, über die gewählte Cha­ rakteristik des Automatikgetriebes auch die Härte des Lenkradkranzes festzulegen, indem dem Modus "Sport" eines Automatikgetriebes ein "harter Lenkradkranz" und dem Modus "Komfort/Economy" ein "weicher Lenkradkranz" zugeordnet ist.According to claim 12, the haptic properties of the steering wheel rim be agrees through the operating mode of aggregates, the driving dynamics of the force influence vehicle. For example, it is possible to use the selected cha characteristics of the automatic transmission also determine the hardness of the steering wheel rim, by the "Sport" mode of an automatic transmission a "hard steering wheel rim" and a "soft steering wheel rim" is assigned to the "comfort / economy" mode.

In weiterer Ausgestaltung der Erfindung (Anspruch 13) vermittelt eine sich peri­ odisch ändernde Härte des Lenkradkranzes dem Fahrzeugführer ein Warnsignal, um auf eine Störung im Betrieb des Kraftfahrzeuges oder eine zu beachtende Größe aus der Umgebung des Kraftfahrzeuges hinzuweisen. Diesen Hinweis nimmt der Fahrer über seinen Tastsinn in jedem Fall wahr. Wie Untersuchungen der An­ melderin ergeben haben, wird die haptische Übermittlung eines Warnsignals dabei im Vergleich zu einem akustischen Hinweis als weniger störend empfunden. Zur genaueren Spezifizierung des Hinweises ist eine ergänzende optische Anzeige im Bereich der Instrumententafel des Kraftfahrzeuges vorzusehen. Neben Betriebsstö­ rungen (z. B. zu hohe Kühlwassertemperatur, Reservepegel im Kraftstofftank er­ reicht etc.) können dem Fahrer durch das erfindungsgemäße Verfahren auch Rückmeldungen zum Verkehrsgeschehen vermittelt werden, beispielsweise zu dichtes Auffahren, Glatteiswarnung, Staumeldungen etc.In a further embodiment of the invention (claim 13) mediates itself peri oddly changing hardness of the steering wheel rim gives the driver a warning signal, to indicate a malfunction in the operation of the motor vehicle or a size to be observed point out from the surroundings of the motor vehicle. This takes the hint Driver true in any case via his sense of touch. How studies of the An have resulted in the haptic transmission of a warning signal perceived as less annoying compared to an acoustic signal. For a more precise specification of the note is a supplementary visual display in the To provide area of the instrument panel of the motor vehicle. In addition to operating faults conditions (e.g. cooling water temperature too high, reserve level in the fuel tank) ranges etc.) can also be done to the driver by the method according to the invention Feedback on traffic events are conveyed, for example, to tight opening, black ice warning, traffic jams etc.

Mögliche Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden nachfolgend näher erläutert. Es zeigt: Possible embodiments of the invention are shown in the drawing and are explained in more detail below. It shows:  

Fig. 1 eine erste Ausführungsform eines erfindungsgemäßen Lenkrades in der Draufsicht, Fig. 1 a first embodiment of a steering wheel according to the invention in plan view,

Fig. 2 den Gegenstand von Fig. 1 in gegenständlicher perspektivischer Dar­ stellung, Fig. 2 position to the subject matter of FIG. 1 in a perspective representational Dar,

Fig. 3 einen Querschnitt entlang der Schnittverlaufslinie III-III in Fig. 1 und Fig. 3 shows a cross section along the section line III-III in Fig. 1 and

Fig. 4 einen Längsschnitt durch einen erfindungsgemäß gestalteten Abschnitt des Lenkrades von Fig. 1. Fig. 4 shows a longitudinal section through a portion of the steering wheel according to the invention designed to FIG. 1.

Die Fig. 1 und 2 zeigen ein Lenkrad 1 mit einem umlaufenden Lenkradkranz 2 und einer Lenkradspeiche 3. Unterhalb der Lenkradspeiche 3 sind zwei Abschnitte 4 vorgesehen, deren haptische Eigenschaften gemäß der Erfindung veränderlich sind. Auch im oberen Bereich des Lenkradkranzes 2 ist ein derartiger Abschnitt 4 angeordnet. Die Abschnitte 4 zeichnen sich durch eine gegenüber dem restlichen Lenkradkranz 2 unterschiedliche Oberflächengestaltung mit Riffelungen 5 aus. Wie die Fig. 3 und 4 näher zeigen, besteht der Lenkradkranz 2 aus einem tra­ genden Kern 6, vorzugsweise aus einem metallischen Werkstoff, der von einer Kammer 7 umgeben ist. Die Kammer 7 wird von einer Umhüllung 8a nach außen hin begrenzt. Die Kammer 7 ist mit einer elektrorheologischen Flüssigkeit 9 gefüllt. Auf die Außenseite des tragenden Kerns 6 ist eine elektrisch leitende Beschichtung 8b aufgebracht. In gleicher Weise ist auch die Innenseite der Umhüllung 8a mit einer elektrisch leitenden Beschichtung 8b versehen. Etwa mittig in der Ringkammer 7 ist ein elektrisch isolierendes Gitter 10 angeordnet. Figs. 1 and 2 show a steering wheel 1 with a circumferential steering wheel rim 2 and a steering wheel spoke 3. Below the steering wheel spoke 3 , two sections 4 are provided, the haptic properties of which can be changed in accordance with the invention. Such a section 4 is also arranged in the upper region of the steering wheel rim 2 . The sections 4 are distinguished by a surface design with corrugations 5 that is different from the rest of the steering wheel rim 2 . As shown in FIGS. 3 and 4 in more detail, consists of the steering wheel rim 2 of a, which is surrounded by a chamber 7 tra constricting core 6, preferably made of a metallic material. The chamber 7 is delimited from the outside by a covering 8 a. The chamber 7 is filled with an electrorheological fluid 9 . An electrically conductive coating 8 b is applied to the outside of the supporting core 6 . In the same way, the inside of the casing 8 a is provided with an electrically conductive coating 8 b. An electrically insulating grid 10 is arranged approximately in the center of the annular chamber 7 .

Zur Einwirkung auf die elektrorheologische Flüssigkeit 9 wird an die beiden Be­ schichtungen 8b eine elektrische Spannung von etwa 1 kV angelegt. Die Umhüllung 8a des Lenkradkranzes 2 besteht aus einem elektrisch isolierenden Material, das gegebenenfalls mit einer zusätzlichen Isolationsschicht zu hinterlegen ist. Mögliche Materialien für die Umhüllung 8a sind Kunststoff, Gummi, Leder etc.To act on the electrorheological fluid 9 , an electrical voltage of approximately 1 kV is applied to the two layers 8 b. The sheath 8 a of the steering wheel rim 2 consists of an electrically insulating material which may have to be deposited with an additional insulation layer. Possible materials for the casing 8 a are plastic, rubber, leather etc.

Das Gitter 10 verhindert einen Kurzschluß zwischen den beiden spannungsführen­ den Beschichtungen 8b für den Fall, daß die Kammer 7 durch den Fahrzeugnutzer bis zur Anlage zusammengedrückt wird. Auch wird durch das Gitter 10 ein Über­ schlagen der Spannung verhindert, wenn der Abstand der beiden Beschichtungen 8b durch Zusammendrücken des Lenkradkranzes 2 verringert wird. Durch die Aus­ führung der isolierenden Schicht 10 als Gitter wird der Austausch der Flüssigkeit 9 zwischen den beiden Abschnitten der Kammer 7, die aufgrund der Unterteilung durch das Gitter 10 entstehen, nicht behindert.The grid 10 prevents a short circuit between the two live coatings 8 b in the event that the chamber 7 is compressed by the vehicle user to the system. The grid 10 also prevents the voltage from striking if the distance between the two coatings 8 b is reduced by compressing the steering wheel rim 2 . From the execution of the insulating layer 10 as a grid, the exchange of the liquid 9 between the two sections of the chamber 7 , which arise due to the division by the grid 10 , is not hindered.

Als elektrorheologische Flüssigkeit 9 kann beispielsweise das Fluid Rheobay 3565 der Bayer AG verwendet werden. Dementsprechend ist das Material der Umhüllung 8a beständig und undurchlässig gegenüber Silikonöl auszuführen, um auch bei einer Fehlstelle in der innenseitigen Beschichtung 8b, durch die die physikalische Funktion der Einrichtung nicht beeinträchtigt wird, die Beständigkeit der Umhüllung 8a zu gewährleisten.For example, the fluid Rheobay 3565 from Bayer AG can be used as the electrorheological fluid 9 . Accordingly, the material of the casing 8 a is to be made resistant and impervious to silicone oil, in order to ensure the stability of the casing 8 a even in the case of a defect in the inside coating 8 b, which does not impair the physical function of the device.

Anstelle der elektrorheologischen Flüssigkeit 9, die unter dem Einfluß eines elektri­ schen Feldes ihre Viskosität verändert und damit die haptischen Eigenschaften der Abschnitte 4 beeinflußt, kann auch der Druck eines flüssigen oder gasförmigen Fluids in der Kammer 7 verändert werden, um hierdurch die Nachgiebigkeit der Ab­ schnitte 4 zu steuern. Hierzu sind unter anderem Ventile zum Öffnen bzw. Schließen der Kammer 7 sowie eine Pumpe und ein Vorratsbehälter für das Fluid erforderlich.Instead of the electrorheological fluid 9 , which changes its viscosity under the influence of an electric field and thus influences the haptic properties of the sections 4 , the pressure of a liquid or gaseous fluid in the chamber 7 can be changed, thereby reducing the flexibility of the sections 4 to control. For this purpose, valves for opening or closing the chamber 7 as well as a pump and a storage container for the fluid are required.

Claims (13)

1. Lenkrad für ein Kraftfahrzeug, mit einem Lenkradkranz, gekennzeichnet durch eine Einrichtung zur Veränderung der haptischen Eigenschaften zumindest eines Abschnittes (4) des Lenkradkranzes (2).1. Steering wheel for a motor vehicle, with a steering wheel rim, characterized by a device for changing the haptic properties of at least one section ( 4 ) of the steering wheel rim ( 2 ). 2. Lenkrad nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung eine Kammer (7) umfaßt, die mit einem Fluid (9) befüllt ist.2. Steering wheel according to claim 1, characterized in that the device comprises a chamber ( 7 ) which is filled with a fluid ( 9 ). 3. Lenkrad nach Anspruch 2, dadurch gekennzeichnet, daß die Kammer (7) ringförmig um eine tragende Struktur (6) des Lenkradkranzes (2) angeordnet ist.3. Steering wheel according to claim 2, characterized in that the chamber ( 7 ) is arranged annularly around a supporting structure ( 6 ) of the steering wheel rim ( 2 ). 4. Lenkrad nach einem der vorangegangenen Ansprüche, gekennzeichnet durch eine Einrichtung zur Veränderung des Druckes des Fluids.4. Steering wheel according to one of the preceding claims, characterized by a device for changing the pressure of the Fluids. 5. Lenkrad nach einem der vorangegangenen Ansprüche, gekennzeichnet durch eine Einrichtung zur Veränderung der Viskosität des Fluids (9). 5. Steering wheel according to one of the preceding claims, characterized by a device for changing the viscosity of the fluid ( 9 ). 6. Lenkrad nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Kammer (7) außenseitig von einer flexiblen Umhüllung (8a) begrenzt ist.6. Steering wheel according to one of the preceding claims, characterized in that the chamber ( 7 ) on the outside by a flexible sheath ( 8 a) is limited. 7. Lenkrad nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Fluid (9) eine rheologische Flüssigkeit ist.7. Steering wheel according to one of the preceding claims, characterized in that the fluid ( 9 ) is a rheological liquid. 8. Lenkrad nach Anspruch 7, dadurch gekennzeichnet, daß an der Innenseite der Umhüllung (8a) und der Außenseite des tragenden Kerns (6) eine Schicht (8b) eines elektrisch leiten­ den Materials vorgesehen ist.8. Steering wheel according to claim 7, characterized in that on the inside of the casing ( 8 a) and the outside of the supporting core ( 6 ) a layer ( 8 b) of an electrically conductive material is provided. 9. Lenkrad nach Anspruch 8, dadurch gekennzeichnet, daß zwischen den beiden Schichten (8b) des elek­ trisch leitenden Materials eine Schicht (10) eines isolierenden Materials vorge­ sehen ist.9. Steering wheel according to claim 8, characterized in that between the two layers ( 8 b) of the electrically conductive material, a layer ( 10 ) of an insulating material is seen easily. 10. Lenkrad nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß der Abschnitt (4) des Lenkradkranzes (2) eine vom übrigen Lenkradkranz (2) abweichende Gestaltung der Oberfläche (5) aufweist.10. Steering wheel according to one of the preceding claims, characterized in that the section ( 4 ) of the steering wheel rim ( 2 ) has a different design of the surface ( 5 ) from the rest of the steering wheel rim ( 2 ). 11. Verfahren zur Ansteuerung eines Lenkrades nach einem der vorangegange­ nen Ansprüche, dadurch gekennzeichnet, daß die haptischen Eigenschaften des Abschnitts (4) des Lenkradkranzes (2) in Abhängigkeit vom Fahrzustand des Kraftfahrzeu­ ges verändert werden. 11. A method for controlling a steering wheel according to one of the preceding claims, characterized in that the haptic properties of the section ( 4 ) of the steering wheel rim ( 2 ) are changed depending on the driving state of the motor vehicle. 12. Verfahren zur Ansteuerung eines Lenkrades nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die haptischen Eigenschaften des Abschnitts (4) des Lenkradkranzes (2) in Abhängigkeit von einem vom Fahrzeugnutzer voreingestellten Betriebszustand des Kraftfahrzeuges verändert werden.12. A method for controlling a steering wheel according to one of claims 1 to 10, characterized in that the haptic properties of the portion ( 4 ) of the steering wheel rim ( 2 ) are changed as a function of an operating state of the motor vehicle preset by the vehicle user. 13. Verfahren zur Ansteuerung eines Lenkrades nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die haptischen Eigenschaften des Abschnitts (4) des Lenkradkranzes (2) periodisch verändert werden, um ein Warnsignal zu vermitteln.13. A method for controlling a steering wheel according to one of claims 1 to 10, characterized in that the haptic properties of the section ( 4 ) of the steering wheel rim ( 2 ) are changed periodically in order to convey a warning signal.
DE1998152315 1998-11-12 1998-11-12 Steering wheel for motor vehicle has rim with device for varying tactile characteristics of at least one section of rim with chamber filled with fluid whose pressure or viscosity can be varied Withdrawn DE19852315A1 (en)

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DE10041178A1 (en) * 2000-08-23 2002-03-07 Volkswagen Ag Operating device for controling motor vehicle has tactile feedback actuators working in all degrees of freedom for tactile signaling of when boundary conditions are reached or approached
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DE10216158A1 (en) * 2002-04-12 2003-11-06 Audi Ag Combined steering wheel and information transfer system, includes variable-shape units in rim, to warn driver of lane departure or other significant events
EP1238888A3 (en) * 2001-03-08 2004-01-14 TRW Automotive Safety Systems GmbH & Co. KG Vibration insulated steering wheel
EP1391366A2 (en) 2002-08-12 2004-02-25 TRW Automotive Safety Systems GmbH Vehicle steering wheel and safety system
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WO2005073051A1 (en) * 2004-01-21 2005-08-11 Autoliv Asp, Inc Steering wheel damper
EP1584901A1 (en) * 2004-04-08 2005-10-12 Wolfgang Dr. Sassin Apparatus for the dynamic optical, acoustical or tactile representation of the sourrounding of a vehicle
GB2426316A (en) * 2005-05-18 2006-11-22 Autoliv Dev Steering wheel having moveable element activated in response to driver tiredness.
DE102006036360A1 (en) * 2006-08-02 2008-02-07 GM Global Technology Operations, Inc., Detroit Steering wheel in a motor vehicle
US7414520B2 (en) 2003-04-04 2008-08-19 Takata-Petri Ag Steering wheel for motor vehicles
DE102007015431A1 (en) * 2007-03-30 2008-10-02 Bayerische Motoren Werke Aktiengesellschaft Succession driving display unit for motor vehicle, has succession driving-display activated for succession driving period and designed as haptic succession driving-display e.g. form elements, arranged in gripping area of steering wheel-rim
DE102007060869A1 (en) * 2007-12-18 2009-06-25 GM Global Technology Operations, Inc., Detroit Steering-wheel for a motor vehicle has a basic frame resistant to bending and an outer skin made from a pliant material to enclose partial areas of the basic frame
US7868515B2 (en) 2008-04-15 2011-01-11 Visteon Global Technologies, Inc. Thin laminate construction for the creation of tactile feedback
DE102012011826B3 (en) * 2012-06-15 2013-09-05 Audi Ag Steering wheel for motor car, has movable arms whose specific ends are respectively pivoted at pivot point over fastening module to specific point of wall formed in steering wheel rim
DE102012221290A1 (en) * 2012-11-21 2014-05-22 Bayerische Motoren Werke Aktiengesellschaft Steering wheel for motor vehicle, has collar surface formed as grip area for driver in different segments of different materials, where right sided lying collar segment is made of different material than left sided lying collar segment
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DE102021114754A1 (en) 2020-12-16 2022-06-23 GM Global Technology Operations LLC ADAPTIVE STEERING WHEEL
IT202200010079A1 (en) * 2022-05-16 2023-11-16 Andrea Mattei APPARATUS AND METHOD FOR STEERING CONTROL WITH TACTILE INDICATION

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DE10026627A1 (en) * 2000-05-29 2001-12-20 Kurt Stadtfeld Steering wheel with three-part grip piece has stabilizing core imparting necessary rigidity, outer elastic casing of perspiration-absorbent material and core piece with hose-type casing
DE10041178A1 (en) * 2000-08-23 2002-03-07 Volkswagen Ag Operating device for controling motor vehicle has tactile feedback actuators working in all degrees of freedom for tactile signaling of when boundary conditions are reached or approached
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DE10216158A1 (en) * 2002-04-12 2003-11-06 Audi Ag Combined steering wheel and information transfer system, includes variable-shape units in rim, to warn driver of lane departure or other significant events
DE10216158B4 (en) * 2002-04-12 2007-03-15 Audi Ag Steering wheel, information system and method for information output via a steering wheel
EP1391366A3 (en) * 2002-08-12 2004-10-20 TRW Automotive Safety Systems GmbH Vehicle steering wheel and safety system
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DE10249003B4 (en) * 2002-10-21 2006-09-07 Sassin, Wolfgang, Dr. Method and device for signaling a temporally and spatially varying danger potential for an operator operating a technical device or a machine
DE10305868A1 (en) * 2003-02-13 2004-08-26 Acts Advanced Car Technology Systems Gmbh & Co.Kg Element for damping impact of road user onto inner or outer part of motor vehicle has flexible outer sleeve and is filled with fluid, whose viscosity can be changed
US7414520B2 (en) 2003-04-04 2008-08-19 Takata-Petri Ag Steering wheel for motor vehicles
WO2005073051A1 (en) * 2004-01-21 2005-08-11 Autoliv Asp, Inc Steering wheel damper
EP1584901A1 (en) * 2004-04-08 2005-10-12 Wolfgang Dr. Sassin Apparatus for the dynamic optical, acoustical or tactile representation of the sourrounding of a vehicle
GB2426316A (en) * 2005-05-18 2006-11-22 Autoliv Dev Steering wheel having moveable element activated in response to driver tiredness.
DE102006036360A1 (en) * 2006-08-02 2008-02-07 GM Global Technology Operations, Inc., Detroit Steering wheel in a motor vehicle
DE102007015431B4 (en) 2007-03-30 2023-03-30 Bayerische Motoren Werke Aktiengesellschaft Display unit and display method in a motor vehicle with a distance-controlled speed control system
DE102007015431A1 (en) * 2007-03-30 2008-10-02 Bayerische Motoren Werke Aktiengesellschaft Succession driving display unit for motor vehicle, has succession driving-display activated for succession driving period and designed as haptic succession driving-display e.g. form elements, arranged in gripping area of steering wheel-rim
DE102007060869A1 (en) * 2007-12-18 2009-06-25 GM Global Technology Operations, Inc., Detroit Steering-wheel for a motor vehicle has a basic frame resistant to bending and an outer skin made from a pliant material to enclose partial areas of the basic frame
US7868515B2 (en) 2008-04-15 2011-01-11 Visteon Global Technologies, Inc. Thin laminate construction for the creation of tactile feedback
DE102012011826B3 (en) * 2012-06-15 2013-09-05 Audi Ag Steering wheel for motor car, has movable arms whose specific ends are respectively pivoted at pivot point over fastening module to specific point of wall formed in steering wheel rim
DE102012221290A1 (en) * 2012-11-21 2014-05-22 Bayerische Motoren Werke Aktiengesellschaft Steering wheel for motor vehicle, has collar surface formed as grip area for driver in different segments of different materials, where right sided lying collar segment is made of different material than left sided lying collar segment
JP2016016767A (en) * 2014-07-09 2016-02-01 ユニバーシティ・オブ・タンペレＵｎｉｖｅｒｓｉｔｙ ｏｆ Ｔａｍｐｅｒｅ Tactile type device
DE102015220652A1 (en) * 2015-10-22 2017-04-27 Bayerische Motoren Werke Aktiengesellschaft A method of designing a user interface interface for a vehicle
DE102015223688A1 (en) * 2015-11-30 2017-06-01 Bayerische Motoren Werke Aktiengesellschaft Arrangement, means of locomotion and method for assuming a driving task by an occupant of a means of transport located in a highly automated driving state
US10843709B2 (en) 2015-11-30 2020-11-24 Bayerische Motoren Werke Aktiengesellschaft Arrangement, vehicle and method for having an occupant of a vehicle that is in a highly automated driving mode take over a driving task
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US11433938B2 (en) 2020-12-16 2022-09-06 GM Global Technology Operations LLC Adaptive steering wheel rim
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