[go: up one dir, main page]

EP0857134A1 - Steering wheel with opto-electronic sensor - Google Patents

Steering wheel with opto-electronic sensor

Info

Publication number
EP0857134A1
EP0857134A1 EP97931719A EP97931719A EP0857134A1 EP 0857134 A1 EP0857134 A1 EP 0857134A1 EP 97931719 A EP97931719 A EP 97931719A EP 97931719 A EP97931719 A EP 97931719A EP 0857134 A1 EP0857134 A1 EP 0857134A1
Authority
EP
European Patent Office
Prior art keywords
steering wheel
vehicle
driver
optical fiber
optic sensor
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Withdrawn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
EP97931719A
Other languages
German (de)
French (fr)
Inventor
Stephan Schmitz
Achim Pruksch
Alain Gaillard
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 EP0857134A1 publication Critical patent/EP0857134A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
    • 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
    • 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

Definitions

  • the invention is based on a steering wheel according to the preamble of claim 1.
  • Steering wheels of this type are conventionally known.
  • such fiber optic sensors are used in the window frame or in the front of an electrically operated window.
  • the sensors switch off the window lift motor as soon as a risk of being caught is detected when the window pane moves upwards.
  • the risk of pinching is detected by an electronic control device in that the pressure acting on the optical fiber in this state causes a change in a light signal that is introduced into it and received by a sensor. This Change is evaluated by the control unit and converted into a signal to switch off the window motor.
  • the invention is based on the idea of using a fiber optic sensor for the targeted triggering of vehicle-side functions, for example of lights, horns, wipers etc. by the driver.
  • the sensor is expediently arranged on the steering wheel, in particular on the steering wheel rim. The functions are triggered by an increased pressure impulse from the driver on the steering wheel rim.
  • grip sequences could be defined from a plurality of pressure pulses in quick succession, by means of which even several different vehicle-side devices can be controlled with a single sensor. The ones that have been eliminated
  • Switches on the dashboard of a motor vehicle increase the clarity of the dashboard and reduce parts and assembly costs while increasing driving safety.
  • FIG. 1 shows in simplified form the arrangement of the fiber optic sensor and the evaluation circuit on a steering wheel.
  • FIG. 2 shows the essential components for signal generation, acquisition and evaluation in a schematic signal flow diagram.
  • the steering wheel 10 shown in FIG. 1 has an annular steering wheel rim 11, which is connected to a centrally arranged steering wheel hub 13 via a plurality of radially extending steering wheel webs 12.
  • An optical fiber 14, which covers the entire circumference of the steering wheel rim 11, is wound in a coil shape around the steering wheel rim 11.
  • the two ends of the optical fiber 14 run parallel along the steering wheel webs 12 to the steering wheel hub 13.
  • At the first end of the optical fiber 14 there is an unrecognizable transmitter 16, the emitted light signal of which is also received by a sensor 18, also not shown.
  • the transmitter 16 and the pickup 18 are in one
  • Integrated evaluation circuit 15 which processes the received light signals into a driver signal 20.
  • FIG. 2 shows, as one of the essential components of the evaluation circuit 15, a transmitter 16 arranged at the first end of the optical fiber 14.
  • An excitation signal transmitter 17 sends a control signal 17.1 to an excitation signal generator 17 which sends a signal correlator 19 in parallel.
  • the light signal 16.1 then generated by the transmitter 16 is polarized by a polarizer (not shown) before it enters the optical fiber 14 and passes along the optical fiber 14 to a photosensitive pickup 18 arranged at its opposite second end.
  • This pickup 18 converts the received light signal 16.2 into a response signal 18.1 um, and forwards this to the signal correlator 19.
  • the control signal 17.1 for the transmitter 16 and the response signal 18.1 of the sensor 18 are compared with one another.
  • the signal correlator 19 From the differences in the polarization between the two signals, the signal correlator 19 generates a correlation signal 19.1, which is converted by an evaluation logic unit 20 connected downstream of the signal correlator 19 into driver signals 20.x for controlling vehicle devices not shown.
  • the polarization differences between the control signal 17.1 of the transmitter 16 and the response signal 18.1 of the sensor 18 are due to physical Laws that are described in detail in the document DE-OS 33 11 524 are due to the effects of force or pressure on the optical fiber 14. These pressure or force effects generated by the driver deform the casing of the steering wheel 10 and, along with it, the optical fiber 14 in an infinitisimally small area.
  • the evaluation circuit 15 would have to recognize grip sequences from short successive pressure pulses, to which various vehicle-side devices are assigned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering Controls (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Emergency Alarm Devices (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The invention proposes a steering wheel (10) for controlling a motor vehicle in particular, which is fitted with a device that detects the elastic deformation of the steering wheel (10) covering caused by pressure from the driver and which uses this deformation to control driver-activated functions. To this end, a fibre optic sensor is fitted to the steering wheel (10). This sensor has an optical fibre (14) into which a transmitter (16) injects a light signal (16.1) which is picked up by a sensor (18). Changes in the pressure or force being exerted on the optical fibre (14) bring about a change of polarisation in the light signal (16.1) which is evaluated by an evaluation circuit (15) to form a driver signal (20.x).

Description

Lenkrad mit optoelektronischem SensorSteering wheel with optoelectronic sensor
Stand der TechnikState of the art
Die Erfindung geht von einem Lenkrad entsprechend dem Oberbegriff des Anspruchs 1 aus. Derartige Lenkräder sind herkömmlich bekannt.The invention is based on a steering wheel according to the preamble of claim 1. Steering wheels of this type are conventionally known.
Aus der DE 33 11 524 AI sind ferner für Kraft- und Druckmessungen bzw. für Uberwachungs- und Sicherheitszwecke besonders geeignete faseroptische Sensoren bekannt. In einem in dieser Druckschrift beschriebenenFrom DE 33 11 524 AI particularly suitable fiber-optic sensors are known for force and pressure measurements or for monitoring and security purposes. In one described in this document
Anwendungsbeispiel aus der Automobiltechnik, sind derartige faseroptische Sensoren in den Fensterrahmen oder in die Stirnseite einer elektrisch betätigbaren Fensterscheibe eingesetzt. Die Sensoren bewirken in diesem Anwendungsfall die Abschaltung des Fensterhebermotors sobald, bei sich aufwärts bewegender Fensterscheibe, eine Einklemmgefahr erkannt wird. Die Einklemmgefahr wird von einem elektronischen Steuergerät dadurch detektiert, daß der in diesem Zustand einwirkende Druck auf die Lichtleitfaser eine Veränderung eines in sie eingeleiteten und von einem Aufnehmer empfangenen Lichtsignals bewirkt. Diese Veränderung wird vom Steuergerät ausgewertet und in ein Signal zur Abschaltung des Fensterhebermotors umgewandelt.Application example from automotive technology, such fiber optic sensors are used in the window frame or in the front of an electrically operated window. In this application, the sensors switch off the window lift motor as soon as a risk of being caught is detected when the window pane moves upwards. The risk of pinching is detected by an electronic control device in that the pressure acting on the optical fiber in this state causes a change in a light signal that is introduced into it and received by a sensor. This Change is evaluated by the control unit and converted into a signal to switch off the window motor.
Vorteile der ErfindungAdvantages of the invention
Der Erfindung liegt demgegenüber der Gedanke zugrunde, einen faseroptischen Sensor zur gezielten Auslösung von fahrzeugseitigen Funktionen, beispielsweise von Licht, Hupe, Wischer etc. durch den Fahrer einzusetzen. Um es dem Fahrer aus Sicherheitsgründen zu ermöglichen, beim Betätigen dieser Funktionen die Hände am Lenkrad zu belassen, ist der Sensor zweckmäßigerweise am Lenkrad, insbesondere am Lenkradkranz, angeordnet. Die Auslösung der Funktionen erfolgt durch einen verstärkten Druckimpuls des Fahrers auf den Lenkradkranz.In contrast, the invention is based on the idea of using a fiber optic sensor for the targeted triggering of vehicle-side functions, for example of lights, horns, wipers etc. by the driver. In order to enable the driver to keep his hands on the steering wheel when operating these functions, the sensor is expediently arranged on the steering wheel, in particular on the steering wheel rim. The functions are triggered by an increased pressure impulse from the driver on the steering wheel rim.
In einer Ausbaustufe eines derartigen Sensorsystems ließen sich aus mehreren, kurz aufeinanderfolgenden Druckimpulεen GriffSequenzen definieren, durch die sich selbst mehrere verschiedene fahrzeugseitige Einrichtungen mit einem einzigen Sensor ansteuern lassen. Die dadurch entfallenenIn an expansion stage of a sensor system of this type, grip sequences could be defined from a plurality of pressure pulses in quick succession, by means of which even several different vehicle-side devices can be controlled with a single sensor. The ones that have been eliminated
Schalter am Armaturenbrett eines Kraftfahrzeugs erhöhen die Übersichtlichkeit des Armaturenbretts und verringern Teile- sowie Montagekosten bei gleichzeitiger Erhöhung der Fahrsicherheit .Switches on the dashboard of a motor vehicle increase the clarity of the dashboard and reduce parts and assembly costs while increasing driving safety.
Aus dem Grundsignal des faseroptischen Sensors, das sich zwangsläufig aus der Umgreifung des Lenkrads durch den Fahrer ergibt, kann mit geringem Zusatzaufwand parallel zu den Auslösefunktionen eine Überwachung des Fahrers realisiert werden. Hierbei ist insbesondere eineFrom the basic signal of the fiber optic sensor, which inevitably results from the driver's grip on the steering wheel, the driver can be monitored in parallel to the triggering functions with little additional effort. Here is one in particular
Lenkzeitüberwachung bzw. eine Einschlaferkennung denkbar. Bei fahrendem Fahrzeug und fehlender Umgreifung des Lenkrads, zum Beispiel infolge des Einschlafens, wird ein Alarm auslöst oder ein Anhaltevorgang des Fahrzeugs einleitet. Weitere Vorteile oder vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen oder der Beschreibung.Driving time monitoring or sleep detection possible. If the vehicle is moving and the steering wheel is not gripped, for example as a result of falling asleep, an alarm is triggered or the vehicle is stopped. Further advantages or advantageous further developments result from the subclaims or the description.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert .An embodiment of the invention is shown in the drawing and explained in more detail in the following description.
Figur 1 zeigt vereinfacht die Anordnung des faseroptischen Sensors sowie der Auswerteschaltung an einem Lenkrad. In Figur 2 sind die wesentlichen Bauteile zur Signalerzeugung, Erfassung und Auswertung in einem schematischen Signalflußplan dargestellt.Figure 1 shows in simplified form the arrangement of the fiber optic sensor and the evaluation circuit on a steering wheel. FIG. 2 shows the essential components for signal generation, acquisition and evaluation in a schematic signal flow diagram.
Beschreibungdescription
Das in Figur 1 dargestellte Lenkrad 10 weist einen ringförmigen Lenkradkranz 11 auf, der über mehrere radial verlaufende Lenkradstege 12 mit einer zentrisch angeordneten Lenkradnabe 13 verbunden ist. Um den Lenkradkranz 11 ist spulenförmig eine Lichtleitfaser 14 gewickelt, die den gesamten Umfang des Lenkradkranzes 11 abdeckt. Die beiden Enden der Lichtleitfaser 14 verlaufen parallel entlang den Lenkradstegen 12 zur Lenkradnabe 13. Am ersten Ende der Lichtleitfaser 14 ist ein nicht erkennbarer Sender 16 angeordnet, dessen ausgesendetes Lichtsignal von einem ebenfalls nicht dargestellten Aufnehmer 18 empfangen wird. Der Sender 16 und der Aufnehmer 18 sind in einerThe steering wheel 10 shown in FIG. 1 has an annular steering wheel rim 11, which is connected to a centrally arranged steering wheel hub 13 via a plurality of radially extending steering wheel webs 12. An optical fiber 14, which covers the entire circumference of the steering wheel rim 11, is wound in a coil shape around the steering wheel rim 11. The two ends of the optical fiber 14 run parallel along the steering wheel webs 12 to the steering wheel hub 13. At the first end of the optical fiber 14 there is an unrecognizable transmitter 16, the emitted light signal of which is also received by a sensor 18, also not shown. The transmitter 16 and the pickup 18 are in one
Auswerteschaltung 15 integriert, die die empfangenen Lichtsignale zu einem Treibersignal 20 verarbeitet.Integrated evaluation circuit 15, which processes the received light signals into a driver signal 20.
Abweichend zur beschriebenen Anordnung wäre es auch möglich, daß lediglich definierte Abschnitte am Umfang des Lenkradkranzes 11 von der Lichtleitfaser 14 umwickelt sind, bzw. daß zusätzlich oder alternativ zum Lenkradkranz 11 die Lenkradstege 12 umwickelt sind. Ebenso wäre eine vom Lenkrad 10 abgekoppelte Anordnung der Auswerteschaltung 15 denkbar.Deviating from the arrangement described, it would also be possible that only defined sections on the circumference of the Steering wheel rim 11 are wrapped by the optical fiber 14, or that the steering wheel webs 12 are wrapped in addition or as an alternative to the steering wheel rim 11. An arrangement of the evaluation circuit 15 that is decoupled from the steering wheel 10 would also be conceivable.
Nicht dargestellt ist eine Ummantelung des Lenkrads 10, die die Lichtleitfaser 14 und die Auswerteschaltung 15 so umschließt, daß diese Bauteile von außen nicht sichtbar sind.Not shown is a sheathing of the steering wheel 10, which encloses the optical fiber 14 and the evaluation circuit 15 so that these components are not visible from the outside.
Figur 2 zeigt, als eines der wesentlichen Bauteile der Auswerteschaltung 15, einen am ersten Ende der Lichtleitfaser 14 angeordneten Sender 16. Diesem Sender 16 wird von einem Erregungssignalgeber 17 zur Aussendung eines Lichtsignals ein Ansteuersignal 17.1 zugeführt, das parallel zu einem Signalkorrelator 19 gelangt. Das vom Sender 16 daraufhin erzeugte Lichtsignal 16.1 wird vor seinem Eintritt in die Lichtleitfaser 14 von einem nicht dargestellten Polarisator polarisiert und gelangt entlang der Lichtleitfaser 14 zu einem an ihrem entgegengesetzt liegenden zweiten Ende angeordneten lichtempfindlichen Aufnehmer 18. Dieser Aufnehmer 18 wandelt das empfangene Lichtsignal 16.2 in ein Antwortsignal 18.1 um, und leitet dieses an den Signalkorrelator 19 weiter. Im Signalkorrelator 19 werden das Ansteuersignal 17.1 für den Sender 16 und das Antwortsignal 18.1 des Aufnehmers 18 miteinander verglichen. Aus den Unterschieden in der Polarisation zwischen beiden Signalen erzeugt der Signalkorrelator 19 ein Korrelationssignal 19.1, das von einer dem Signalkorrelator 19 nachgeschalteten Auswertelogik 20 in Treibersignale 20.x zur Ansteuerung von nicht dargestellten fahrzeugseitigen Einrichtungen umgewandelt wird. Die Polarisationsunterschiede zwischen dem Ansteuersignal 17.1 des Senders 16 und dem Antwortsignal 18.1 des Aufnehmers 18 sind aufgrund von physikalischen Gesetzmäßigkeiten, die in der Druckschrift DE-OS 33 11 524 detailliert beschrieben sind auf Kraft- bzw. Druckeinwirkungen auf die Lichtleitfaser 14 zurückzuführen. Diese vom Fahrer erzeugten Druck- bzw. Krafteinwirkungen verformen die Ummantelung des Lenkrads 10 und damit einhergehend die Lichtleitfaser 14 in infinitisimal geringem Bereich.FIG. 2 shows, as one of the essential components of the evaluation circuit 15, a transmitter 16 arranged at the first end of the optical fiber 14. An excitation signal transmitter 17 sends a control signal 17.1 to an excitation signal generator 17 which sends a signal correlator 19 in parallel. The light signal 16.1 then generated by the transmitter 16 is polarized by a polarizer (not shown) before it enters the optical fiber 14 and passes along the optical fiber 14 to a photosensitive pickup 18 arranged at its opposite second end. This pickup 18 converts the received light signal 16.2 into a response signal 18.1 um, and forwards this to the signal correlator 19. In the signal correlator 19, the control signal 17.1 for the transmitter 16 and the response signal 18.1 of the sensor 18 are compared with one another. From the differences in the polarization between the two signals, the signal correlator 19 generates a correlation signal 19.1, which is converted by an evaluation logic unit 20 connected downstream of the signal correlator 19 into driver signals 20.x for controlling vehicle devices not shown. The polarization differences between the control signal 17.1 of the transmitter 16 and the response signal 18.1 of the sensor 18 are due to physical Laws that are described in detail in the document DE-OS 33 11 524 are due to the effects of force or pressure on the optical fiber 14. These pressure or force effects generated by the driver deform the casing of the steering wheel 10 and, along with it, the optical fiber 14 in an infinitisimally small area.
Selbstverständlich sind Änderungen bzw. vorteilhafte Weiterbildungen des Ausführungsbeispiels möglich, ohne vom Gedanken der Erfindung abzuweichen.Of course, changes or advantageous developments of the exemplary embodiment are possible without departing from the concept of the invention.
In diesem Zusammenhang sei eine Weiterentwicklungsmöglichkeit erwähnt, die es ermöglichen würde, mehrere verschiedene Fahrzeugfunk ionen durch einen einzigen Sensor am Lenkradkranz 11 zu steuern. Hierzu müßte die Auswerteschaltung 15 aus kurz aufeinanderfolgenden Druckimpulsen GriffSequenzen erkennen, denen verschiedene fahrzeugseitige Einrichtungen zugeordnet sind. In this context, a further development possibility should be mentioned that would make it possible to control several different vehicle functions by means of a single sensor on the steering wheel rim 11. For this purpose, the evaluation circuit 15 would have to recognize grip sequences from short successive pressure pulses, to which various vehicle-side devices are assigned.

Claims

Ansprüche Expectations
1. Lenkrad (10), insbesondere zum Steuern eines1. steering wheel (10), in particular for controlling a
Kraftfahrzeugs, mit einem wenigstens teilweise umlaufenden Lenkradkranz (11) , der durch wenigstens einen im wesentlichen in radialer Richtung zum Lenkradkranz (11) verlaufenden Lenkradsteg (12) mit einer Lenkradnabe (13) verbunden ist, dadurch gekennzeichnet, daß das Lenkrad (10) einen faseroptischen Sensor mit wenigstens einer Lichtleitfaser (14) aufweist, an derem ersten Ende ein lichtemittierender Sender (16) ein Lichtsignal (16.1) aussendet, das ein am gegenüberliegenden zweiten Ende der Lichtleitfaser (14) angeordneter lichtempfindlicherMotor vehicle, with an at least partially circumferential steering wheel rim (11) which is connected to a steering wheel hub (13) by at least one steering wheel web (12) running essentially in the radial direction to the steering wheel rim (11), characterized in that the steering wheel (10) has a Fiber-optic sensor with at least one optical fiber (14), at the first end of which a light-emitting transmitter (16) emits a light signal (16.1), which is a light-sensitive one arranged at the opposite second end of the optical fiber (14)
Aufnehmer (18) empfängt, daß der Aufnehmer (18) einer Auswerteschaltung (15) ein dem empfangenen Lichtsignal (16.2) entsprechendes Antwortsignal (18.1) zuleitet, und daß die Auswerteschaltung (15) aus der im Falle einer Kraft- bzw. Druckeinwirkung auf die Lichtleitfaser (14) entstehenden Modulation zwischen dem ausgesendeten und dem empfangenen Lichtsignal (16.1 , 16.2) ein Treibersignal (20.x) erzeugt, das zur Steuerung wenigstens einer fahrzeugspezifischen Einrichtung dient.Transducer (18) receives that the transducer (18) feeds an evaluation circuit (15) a response signal (18.1) corresponding to the received light signal (16.2), and that the evaluation circuit (15) from which in the event of a force or pressure action on the Optical fiber (14) generated modulation between the emitted and the received light signal (16.1, 16.2) generates a driver signal (20.x) which is used to control at least one vehicle-specific device.
2. Lenkrad (10) nach Anspruch 1, dadurch gekennzeichnet, daß die wenigstens eine Lichtleitfaser (14) des faseroptischen Sensors zumindest abschnittsweise spulenförmig um den Lenkradkranz (11) gewickelt ist. 2. Steering wheel (10) according to claim 1, characterized in that the at least one optical fiber (14) of the fiber optic sensor is wound at least in sections in a coil shape around the steering wheel rim (11).
3. Lenkrad (10) nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die wenigstens eine Lichtleitfaser (14) des faseroptischen Sensors spulenförmig um wenigstens einen Lenkradsteg (12) gewickelt ist.3. Steering wheel (10) according to claim 1 or 2, characterized in that the at least one optical fiber (14) of the fiber optic sensor is wound in a coil shape around at least one steering wheel web (12).
4. Lenkrad (10) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der faseroptische Sensor von einer Ummantelung umgeben ist .4. Steering wheel (10) according to one of claims 1 to 3, characterized in that the fiber optic sensor is surrounded by a casing.
5. Lenkrad (10) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sender (16), der Aufnehmer (18) und die Auswerteschaltung (15) des faseroptischen Sensors in der Lenkradnabe (13) angeordnet sind.5. Steering wheel (10) according to one of claims 1 to 4, characterized in that the transmitter (16), the sensor (18) and the evaluation circuit (15) of the fiber optic sensor in the steering wheel hub (13) are arranged.
6. Lenkrad (10) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Auswerteschaltung (15) des faseroptischen Sensors aus mehreren in kurzen zeitlichen Abständen aufeinanderfolgenden Modulationen zwischen dem ausgesendeten und dem empfangenen Lichtsignal (16.1 , 16.2) GriffSequenzen erkennt, denen verschiedene fahrzeugspezifische Einrichtungen zugeordnet sind.6. Steering wheel (10) according to one of claims 1 to 5, characterized in that the evaluation circuit (15) of the fiber optic sensor recognizes handle sequences from a plurality of modulations between the emitted and the received light signal (16.1, 16.2) which follow one another at short time intervals different vehicle-specific facilities are assigned.
7. Lenkrad (10) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine der fahrzeugspezifischen Einrichtungen eine Alarmeinrichtung ist, die bei fahrendem Fahrzeug anspricht, wenn keine Umgreifung des Lenkrads (10) durch den Fahrer erfolgt .7. Steering wheel (10) according to one of claims 1 to 6, characterized in that one of the vehicle-specific devices is an alarm device which responds when the vehicle is moving when the driver does not grip the steering wheel (10).
8. Lenkrad (10) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine der fahrzeugspezifischen8. Steering wheel (10) according to one of claims 1 to 6, characterized in that one of the vehicle-specific
Einrichtungen der Kraftstoffkreislauf und/oder die Zündung des Fahrzeugmotors ist, die dann unterbrochen werden, wenn beim Stillstand des Fahrzeugs keine Umgreifung des Lenkrads (10) durch den Fahrer erfolgt. Devices of the fuel circuit and / or the ignition of the vehicle engine, which are then interrupted when the driver does not grip the steering wheel (10) when the vehicle is at a standstill.
9. Lenkrad (10) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine der fahrzeugspezifischen Einrichtungen die Hupe, der Wischer, oder die Beleuchtung ist, die durch einen bzw. mehrere aufeinanderfolgende verstärkte Druckimpulse des Fahrers auf den Lenkradkranz (11) bzw. auf wenigstens einen Lenkradsteg (12) betätigt werden.9. Steering wheel (10) according to one of claims 1 to 6, characterized in that one of the vehicle-specific devices is the horn, the wiper, or the lighting, which by one or more successive amplified pressure pulses from the driver on the steering wheel rim (11) or operated on at least one steering wheel web (12).
10. Lenkrad (10) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine der fahrzeugspezifischen10. Steering wheel (10) according to one of claims 1 to 6, characterized in that one of the vehicle-specific
Einrichtungen eine Einrichtung zur Regelung bzw. Anpassung der Sollfahrgeschwindigkeit des Fahrzeugs ist. Devices is a device for regulating or adjusting the target driving speed of the vehicle.
EP97931719A 1996-08-03 1997-07-09 Steering wheel with opto-electronic sensor Withdrawn EP0857134A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19631502 1996-08-03
DE19631502A DE19631502C1 (en) 1996-08-03 1996-08-03 Steering wheel with optoelectronic sensor
PCT/DE1997/001442 WO1998005543A1 (en) 1996-08-03 1997-07-09 Steering wheel with opto-electronic sensor

Publications (1)

Publication Number Publication Date
EP0857134A1 true EP0857134A1 (en) 1998-08-12

Family

ID=7801778

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97931719A Withdrawn EP0857134A1 (en) 1996-08-03 1997-07-09 Steering wheel with opto-electronic sensor

Country Status (5)

Country Link
US (1) US6114949A (en)
EP (1) EP0857134A1 (en)
JP (1) JP2000500101A (en)
DE (1) DE19631502C1 (en)
WO (1) WO1998005543A1 (en)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59802781D1 (en) * 1997-07-04 2002-02-28 Volkswagen Ag Method and device for triggering the airbag system in a passenger car
ATA47899A (en) * 1999-03-17 2003-06-15 Fahrertraining & Motorsportman METHOD AND DEVICE FOR MONITORING THE EFFECTIVITY OF A PERSON CONTROLLING A VEHICLE OR A DRIVING SIMULATOR
US6259364B1 (en) 1999-12-16 2001-07-10 Breed Automotive Technology, Inc. Horn switch and ancillary device switches for vehicles
DE10027922A1 (en) * 2000-06-06 2002-01-24 Bosch Gmbh Robert Method for detecting the position of hands on a steering wheel
DE10048956C1 (en) * 2000-10-04 2002-05-02 Autoliv Dev Motor vehicle steering wheel, has conducting surface on steering wheel in common with driver's hand contact surface to form capacitor with wheel cover forming dielectric
US8301108B2 (en) 2002-11-04 2012-10-30 Naboulsi Mouhamad A Safety control system for vehicles
JP2005507125A (en) * 2001-10-24 2005-03-10 ナブルシ、ムハマッド、アーマッド Vehicle safety control device
US6731925B2 (en) * 2001-10-24 2004-05-04 Mouhamad Ahmad Naboulsi Safety control system for vehicles
US9778794B2 (en) 2001-11-02 2017-10-03 Neonode Inc. Light-based touch screen
EP1537002A2 (en) * 2002-09-06 2005-06-08 Continental Teves AG & Co. oHG Steering handle for motor vehicles and method for recording a physical parameter on a steering handle
US20040138795A1 (en) * 2003-01-15 2004-07-15 Alkarawi Atheel S. Reconfigurable steering wheel control switch system
US7525449B1 (en) 2003-10-20 2009-04-28 Teleflex Megatech, Inc. Status light for switch on boat steering wheel
US7405540B2 (en) * 2003-10-20 2008-07-29 Teleflex Megatech, Inc. Secondary power supply system and method of activating subsystems from a vehicle steering wheel
JP3915806B2 (en) * 2003-11-11 2007-05-16 セイコーエプソン株式会社 Electro-optical device and electronic apparatus
US7672759B1 (en) 2004-02-24 2010-03-02 Teleflex Megatech, Inc. Communication with a steering wheel switch
US7135981B1 (en) 2004-10-12 2006-11-14 Teleflex Megatech Inc. Fuel level variation detector for marine vehicle
EP1829728A4 (en) * 2004-12-16 2010-11-03 Martin Alvarez Juan Carlos Device for preventing accidents in the event of drowsiness or inattention on the part of the driver of a vehicle
DE102004062040A1 (en) * 2004-12-23 2006-07-13 Leopold Kostal Gmbh & Co. Kg Optical sensor for the steering wheel of a motor vehicle for monitoring the physical condition of the driver
GB0513262D0 (en) * 2005-06-30 2005-08-03 Zeroshift Ltd Steering wheel mounted controller
JP2007064716A (en) * 2005-08-30 2007-03-15 Hitachi Cable Ltd Collision detection sensor
FR2892085B1 (en) * 2005-10-19 2007-11-23 Koyo Steering Europ Soc Par Ac METHOD FOR DETERMINING IN REAL TIME THE HOLDING OF A DRIVING WHEEL OF AN ELECTRIC POWER STEERING OF A MOTOR VEHICLE
DE202006005593U1 (en) * 2006-04-04 2006-08-31 MöllerTech GmbH Motor vehicle steering wheel, with grip pressure sensitivity, has a capacitative proximity switch and the metal wheel as an electrode to sound a warning if the driver falls asleep at the wheel
GB0611914D0 (en) 2006-06-15 2006-07-26 Teti Giuseppe Peptides that mimic non-human cross-reactive protective epitopes of the group Bmeningococcal capsulsar polysaccharide
US7352270B1 (en) 2006-10-27 2008-04-01 Itt Manufacturing Enterprises, Inc. Printed circuit board with magnetic assembly
DE102006061263B4 (en) * 2006-12-22 2022-03-10 Kostal Automobil Elektrik Gmbh & Co. Kg Steering wheel for a motor vehicle
JP4475288B2 (en) 2007-04-20 2010-06-09 横浜ゴム株式会社 Steering force detection device
DE102007020936B4 (en) 2007-05-04 2022-11-10 Volkswagen Ag Method and device for controlling functional units in a motor vehicle
IL188458A (en) * 2007-12-27 2014-06-30 Newtech O D Ltd Steering wheel holding control system
DE102008042277B4 (en) 2008-09-23 2011-04-21 Robert Bosch Gmbh Device and method for detecting the contact state on a shaft or axle (steering wheel)
KR101058474B1 (en) * 2008-10-29 2011-08-25 계명대학교 산학협력단 Warning device for safe driving of vehicle and its method
DE102009000421B4 (en) 2009-01-27 2020-03-19 Robert Bosch Gmbh Method for starting at least one drive of a vehicle
US8775023B2 (en) * 2009-02-15 2014-07-08 Neanode Inc. Light-based touch controls on a steering wheel and dashboard
DE102009019663A1 (en) * 2009-04-30 2010-11-04 Continental Teves Ag & Co. Ohg A method of detecting a physical quantity on a steering handle
US8564424B2 (en) * 2009-12-07 2013-10-22 Inventioneers Etc., Llc Steering wheel hand position sensing device
DE102009058138A1 (en) 2009-12-12 2011-06-16 Volkswagen Ag Method for manufacturing proximity sensor that detects information about hands of driver proximate to steering wheel of motor vehicle, involves changing capacitances depending on object approaching upper fabric layer and lower fabric layer
WO2014053928A1 (en) 2012-10-05 2014-04-10 Koninklijke Philips N.V. Detection system using photo-sensors
US9092093B2 (en) 2012-11-27 2015-07-28 Neonode Inc. Steering wheel user interface
US12032817B2 (en) 2012-11-27 2024-07-09 Neonode Inc. Vehicle user interface
US9896070B2 (en) * 2013-02-11 2018-02-20 Redevex Corporation Steering wheel squeeze-activated vehicle braking system
KR101484207B1 (en) * 2013-03-15 2015-01-16 현대자동차 주식회사 Apparatus for operating devices installed in vehicle
KR101491284B1 (en) * 2013-07-25 2015-02-11 현대자동차주식회사 Steering wheel for stiffness adjusting and pressure receiving and method for controlling the same
US9889873B2 (en) 2013-10-01 2018-02-13 Continental Teves Ag & Co. Ohg Method and device for an automatic steering intervention
DE102014007163B3 (en) 2014-05-15 2015-09-24 Florian Gerber Monitoring system for motor vehicles
US10041846B2 (en) 2015-07-20 2018-08-07 Honda Motor Co., Ltd. Rotary force diagnostic tools and methods
US9964457B2 (en) 2015-07-20 2018-05-08 Honda Motor Co., Ltd. Rotary force diagnostic tools and methods
DE112017004634B4 (en) 2017-03-07 2022-03-17 Continental Automotive Gmbh DEVICE AND METHOD FOR DETECTING A HAND CONTROL OF A STEERING WHEEL
US10682952B2 (en) 2017-06-28 2020-06-16 Honda Motor Co., Ltd. Embossed smart functional premium natural leather
US11225191B2 (en) 2017-06-28 2022-01-18 Honda Motor Co., Ltd. Smart leather with wireless power
US10953793B2 (en) 2017-06-28 2021-03-23 Honda Motor Co., Ltd. Haptic function leather component and method of making the same
US11665830B2 (en) 2017-06-28 2023-05-30 Honda Motor Co., Ltd. Method of making smart functional leather
US10272836B2 (en) 2017-06-28 2019-04-30 Honda Motor Co., Ltd. Smart functional leather for steering wheel and dash board
EP3575182B1 (en) * 2018-05-31 2021-04-07 Volkswagen AG Heatable touch sensor and steering wheel comprising such a touch sensor
CN113165515B (en) 2018-11-28 2021-11-02 内奥诺德公司 Driver User Interface Sensors
US11751337B2 (en) 2019-04-26 2023-09-05 Honda Motor Co., Ltd. Wireless power of in-mold electronics and the application within a vehicle
KR20230075675A (en) * 2021-11-23 2023-05-31 (주)옵토닉스 Photodetector based on All-in-one Optics

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH289231A (en) * 1951-05-08 1953-02-28 Kuersteiner Hans Equipment on motor vehicles to protect against accidents caused by fainting, death or sleep of the vehicle driver.
DE1950361B2 (en) * 1969-10-06 1974-05-30 Lansing Bagnall Ltd., Basingstoke, Hampshire (Grossbritannien) Vehicle with manual steering and a stopping device
DE2207149A1 (en) * 1972-02-16 1973-08-30 Daimler Benz Ag STEERING WHEEL FOR CAR
AU468256B2 (en) * 1972-02-25 1976-01-08 ARTHUR SCULTHORPE and ISLA PAMELA SCULTHORPE HENRY Grip actuated, steering wheel control switch
US4158191A (en) * 1978-02-27 1979-06-12 General Motors Corporation Air cushion actuation and monitoring circuit
GB2074313B (en) * 1980-03-25 1984-08-30 Nissan Motor Optical signal transmission systems
JPS5741231A (en) * 1980-08-21 1982-03-08 Nippon Denso Co Ltd Multiplex signal transmission system for automobile
DE3311524C2 (en) * 1983-03-30 1985-11-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Fiber optic sensor for force and pressure measurements as well as for monitoring and protection purposes
JPS6118540A (en) * 1984-07-06 1986-01-27 Honda Motor Co Ltd Switching device of steering
FR2573705B1 (en) * 1984-11-27 1987-03-20 Peugeot Aciers Et Outillage DEVICE FOR TRANSMITTING, BY OPTICAL COUPLING OF INFORMATION FROM A STEERING WHEEL, TO A SOLIDARITY MEMBER OF A VEHICLE
US4772799A (en) * 1985-11-30 1988-09-20 Toyoda Gosei Co., Ltd. Optical communication system
JPS62198545A (en) * 1986-02-24 1987-09-02 Reiko Saito Steering device for automobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9805543A1 *

Also Published As

Publication number Publication date
US6114949A (en) 2000-09-05
WO1998005543A1 (en) 1998-02-12
JP2000500101A (en) 2000-01-11
DE19631502C1 (en) 1998-01-22

Similar Documents

Publication Publication Date Title
DE19631502C1 (en) Steering wheel with optoelectronic sensor
DE4101759B4 (en) Automatic braking system for a vehicle
US4975850A (en) Apparatus and method responsive to vehicle jerk for actuating a passenger restraint system in a passenger vehicle
WO2003066385A1 (en) Front sensor of a vehicle
EP0869875B1 (en) Tyre pressure monitoring device
DE102004031557A1 (en) Method, device and crash sensor for occupant-relevant activation of occupant protection devices in a motor vehicle in crash cases and motor vehicle with such a device
DE102007020936A1 (en) Functional units e.g. horn, controlling method for motor vehicle, involves outputting control signals to functional units of motor vehicle depending on threshold value for measuring signal, where threshold value is variably defined
EP1380474A2 (en) Control arrangement for restraining means
CN109141941A (en) A kind of device and method using current detecting wheel steering system
EP2321165B1 (en) Method and device for detecting a running internal combustion engine in a hybrid vehicle
DE60209971T2 (en) Collision detection device for vehicles
EP0950583B1 (en) Method for adapting a triggering threshold of passenger safety devices
EP1634099A2 (en) Device for the classification of at least one object by means of an environment sensor
EP0305656B1 (en) Shock sensor for a motor vehicle
DE3315594A1 (en) Device for monitoring the distance between at least one reference point on a vehicle and the carriageway
WO2002098708A1 (en) Assembly for sensing a frontal impact in a vehicle
DE102007002737A1 (en) Method for checking the plausibility of an accident in vehicles
DE19753160C1 (en) Arrangement for detecting an impending accident situation for a motor vehicle
DE10317638B4 (en) Arrangement for impact detection
DE60209840T2 (en) Collision detection device for vehicle
DE10047817B4 (en) Motor vehicle with means for reducing the risk of accidents
ES528993A0 (en) DETECTION DETECTION OF INSUFFICIENT INFLATION OF AN AUTOMOBILE VEHICLE WHEEL TIRE.
DE10057917B4 (en) Method and device for triggering ignition circuits for restraint devices
EP2020350B1 (en) System for capturing optical signals with a rain sensor and method
DE102007012461B4 (en) Control device and method for controlling pedestrian protection devices

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19980812

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010301