WO2011144280A1 - Vehicle seat having intelligent actuators - Google Patents

Vehicle seat having intelligent actuators Download PDF

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Publication number
WO2011144280A1
WO2011144280A1 PCT/EP2011/001860 EP2011001860W WO2011144280A1 WO 2011144280 A1 WO2011144280 A1 WO 2011144280A1 EP 2011001860 W EP2011001860 W EP 2011001860W WO 2011144280 A1 WO2011144280 A1 WO 2011144280A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensors
seat device
seat
control device
vehicle
Prior art date
Application number
PCT/EP2011/001860
Other languages
German (de)
French (fr)
Inventor
Viktor Bieletzki-Welz
Daniel Jendritza
Wei Lange-Mao
Andreas Eppinger
Original Assignee
Johnson Controls 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 Johnson Controls Gmbh filed Critical Johnson Controls Gmbh
Publication of WO2011144280A1 publication Critical patent/WO2011144280A1/en

Links

Classifications

    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0268—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for adapting the seat or seat part, e.g. to the position of an occupant
    • 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
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0023—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for detection of driver fatigue
    • 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
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B60N2/0027—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat for detecting the position of the occupant or of occupant's body part
    • B60N2/0028—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat for detecting the position of the occupant or of occupant's body part of a body part, e.g. of an arm or a leg
    • 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
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B60N2/0029—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat for detecting the motion of the occupant
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0273—Non-manual adjustments, e.g. with electrical operation with logic circuits taking into account user data, e.g. knee height or physical state
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0296—Central command actuator to selectively switch on or engage one of several special purpose circuits or mechanisms
    • 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
    • B60N2/976—Details or parts not otherwise provided for massaging systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/10—Field detection presence sensors
    • B60N2210/12—Capacitive; Electric field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/10—Field detection presence sensors
    • B60N2210/16—Electromagnetic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/10—Field detection presence sensors
    • B60N2210/16—Electromagnetic waves
    • B60N2210/22—Optical; Photoelectric; Lidar [Light Detection and Ranging]
    • B60N2210/24—Cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/10—Field detection presence sensors
    • B60N2210/26—Ultrasonic, e.g. sonar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/40—Force or pressure sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/40—Force or pressure sensors
    • B60N2210/48—Piezoelectric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/50—Inertial sensors

Definitions

  • the invention relates to a seat device, in particular a motor vehicle seat, with a control device for controlling the seat adjustment and with attached to the vehicle seat and / or on the vehicle sensors for monitoring the condition of
  • Such seat devices for motor vehicles are known and are used in particular for monitoring fatigue of the driver to warn the driver in the event of a critical state of fatigue or already preventive on detection of fatigue settings of the vehicle seat by means of a
  • Such a seat device is known for example from the document DE 40 22 423 C2.
  • Vehicle occupants are monitored and wherein the seat settings of the condition of the vehicle occupant is adjusted.
  • Seat settings of the condition of the vehicle occupant is adjusted.
  • such seating devices do not allow early detection of pain experienced by vehicle occupants and a particularly comprehensive effect of treatment to prevent or alleviate such pain.
  • the invention is therefore an object of the invention to provide a seat device for a motor vehicle, wherein the seat device early detection of the states of mind of the vehicle occupants, in particular early detection of back, hip and
  • the seat device is further provided for the improvement of the states of mind, in particular for the prevention and alleviation of this pain.
  • Seating device a sensor arrangement, a control device, preferably a
  • the sensor arrangement comprises at least one sensor, wherein the sensor arrangement for detecting various
  • Sensitivity factors of vehicle occupants, in particular of back, hip and leg pain is provided, wherein the control device for evaluating the
  • Treatment measures to the vehicle occupants by the control device is controllable.
  • Sensitivity factors are tuned to the state of mind of the vehicle occupants, so that the treatment measures occurring particularly advantageous
  • the sensor arrangement preferably has a plurality of sensors, wherein the sensors are particularly preferably embodied as ultrasonic sensors, as microwave sensors, as piezoelectric sensors, as resistance sensors, as current sensors, as temperature sensors, as a dielectric elastomer and / or as pressure sensors.
  • the sensors are particularly preferably embodied as ultrasonic sensors, as microwave sensors, as piezoelectric sensors, as resistance sensors, as current sensors, as temperature sensors, as a dielectric elastomer and / or as pressure sensors.
  • the sensors are particularly preferably embodied as ultrasonic sensors, as microwave sensors, as piezoelectric sensors, as resistance sensors, as current sensors, as temperature sensors, as a dielectric elastomer and / or as pressure sensors.
  • the sensor arrangement has a sensor for monitoring the state of fatigue of the driver.
  • the sensor arrangement preferably comprises a CCD camera and / or an ultrasound sensor.
  • the CCD camera detects according to the invention, for example, the fatigue state based on head and / or eye movements, while the ultrasonic sensors are provided for monitoring the driver's posture and detect, for example Nachvornebeugen the driver as a result of Einnickens.
  • At least a part of the sensors is activated only in a specific operating state of the vehicle. For example, sensors that monitor the sitting posture of the vehicle occupants only become weak after a certain time Start of the car ride active, so as to ensure that the occupants have already taken their travel seating position.
  • At least partially existing vehicle components for example capacitive sensors, which are usually used in the prior art for determining the vehicle seat occupancy, are particularly preferably used according to the invention. This makes it possible to realize the subject invention particularly cost.
  • the seat device comprises a warning device, wherein the warning device is controlled by the control device, and wherein the warning device informs vehicle occupants about their state of health and warns the vehicle occupants in the event of a critical state of health.
  • a warning is carried out according to the invention, for example, when back pain is detected by the sensor assembly when the travel time has exceeded a critical duration or when fatigue of the driver has been detected by means of the sensor arrangement.
  • the seat device has a plurality of actuators, wherein the actuators particularly preferably individually via the
  • Control device can be controlled.
  • the actuators are designed such that a multiplicity of treatment measures can be effected by the actuators.
  • the actuators are provided for effecting massage-like movements, 2D or 3D movements and / or vibration movements of the vehicle seat.
  • the actuators are designed, for example, as electromechanical motors, as dielectric elastomer actuators, as air cushions and / or as other drives known from the prior art. It is further preferred that the actuators are provided for effecting heat treatments, wherein the actuators are preferably designed as ultrasonic wave transmitters and / or as conventional heating elements used for the seat heating.
  • Seat adjusters are used. Conversely, it is preferred according to the invention that additional actuators used to effect treatment measures simultaneously enable further Wegverstellfunktionen. For example, it is provided that an actuator at the same time for effecting a massage movement and for adjusting the seat device in a particularly advantageous for the vehicle occupant one and exit position, in particular by rotation and / or tilting of the seat device, is provided. This makes it possible according to the invention
  • the treatment measures and seat movements effected by the actuators are preferably controlled via a closed control loop, which allows a particularly stable and precise seat movement and a particularly high value
  • the actuators In contrast to a conventional closed-loop control system, it is further preferred that the actuators also act as a sensor at the same time, as a result of which the closed control loop can be realized in a particularly cost-effective manner.
  • control device is adjustable in a plurality of operating modes, wherein the set operating mode dictates the type and intensity of the treatment measure controlled by the control device. Furthermore, it is particularly preferred that the treatment measure for each vehicle occupant is controlled individually. This makes it possible that the treatment measure in a particularly advantageous manner the condition and needs of
  • Vehicle occupant is customizable.
  • a coupling of the control device to other sensors of the vehicle is provided, wherein the other sensors monitor the operating state of the vehicle.
  • the control device it is advantageously possible for the control device to be automatically set to a specific operating mode as a function of the operating state of the vehicle.
  • certain treatment measures are effected only in a parking position of the vehicle or that all treatment measures to increase safety in a dangerous situation, for example, when the vehicle sensors high acceleration forces are signaled to be stopped altogether.
  • the seat device for generating the seat movements a magnetorheological fluid coupling (hereinafter referred to as "MRF coupling”) and / or an electrorheological fluid coupling (im
  • the coupling is formed according to a two-container principle, wherein a first container is located in a second container and wherein the first and the second container with a
  • the seat movement is also particularly stable executable.
  • FIG. 3 shows a second embodiment of the seat device according to the invention
  • FIG. 1 provides a flow diagram of a closed loop according to the prior art.
  • a system 1 for example, a seat device
  • a target loading 5 for example, a force applied
  • a movement 6 for example, a seat movement
  • the movement 6 due to a fault 10 'on the system deviates from the predetermined by the target loading 5 target movement.
  • the movement 6 is measured by means of a sensor 2, wherein the sensor 2 a measured value 7 to a control device 3 (for example, to a
  • the control device 3 determines the deviation 8 between the movement 6 and the desired movement and transmits an actuating signal to an actuator 4 (for example an electromechanical motor), whereupon the actuator 4 applies a correction to the system 1.
  • an actuator 4 for example an electromechanical motor
  • the actuator 4 applies a correction to the system 1.
  • About the closed loop according to the invention thus, for example, a particularly stable and precise seat movement is realized.
  • the same components are used for the sensors and actuators. For example, this can be done over the
  • FIG. 2 shows a schematic perspective view of a first embodiment of a seat device 10 according to the invention, wherein the seat device 10 has a backrest 11 and a seat part 12.
  • the backrest 11 includes
  • the seat part 12 comprises a plurality of motors 5 'for effecting seat movements, in particular massage movements or vibrations, wherein the motors 5' are connected to the control device 3.
  • the seat device comprises a camera 4 ', preferably a CCD camera, which is also connected to the control device 3. The camera is
  • the control device 3 furthermore has operating elements 20, preferably a switch, wherein by means of the operating elements 20 the control device 5 can be set to a manual operating mode 21 or an automated operating mode 22. Furthermore, the control device is connected to further vehicle sensors 23. According to the invention by means of the ultrasonic sensors 1 'and / or the
  • Pressure sensors 2 ' monitors the driver's condition.
  • the distance of the driver from the backrest is measured by means of the ultrasonic sensors 1 'and / or by means of the pressure sensors 2' transmitted by the driver to the backrest 1 1
  • the measurement signals are transmitted from the sensors V, 2 'to the control device 3 for evaluation, the control device 3 deriving from the measurement signals at least partially the condition of the vehicle occupant.
  • the control device in such a case sends control signals to the motors 5 'for effecting seat movements, which are intended to bring about an improvement in the driver's condition, for example by alleviating the detected back pain.
  • the control of the seat movement is in this case preferably via a closed loop according to FIG. 1.
  • the fatigue state of the driver according to the invention by the camera 4 'monitored, the camera records eye and / or head movements of the driver and transmits to the control device 3 for evaluation , The control device 3 judges the fatigue state based on various fatigue indicators and warns the driver in case of a critical fatigue state.
  • the warning can be according to the invention preferably as an optical or acoustic signal (not shown).
  • the control device 3 causes a vibration movement of the seat device by means of the motors 5 ', which shakes the driver awake.
  • the control device can be switched on or off via the operating element 20 or set in various automated operating modes 22. For example, different modes of operation 22 for car trips on short or long distances are conceivable. It is also conceivable that in the operating modes 22 certain configurable driver profiles
  • Vehicle occupants can be adjusted. Furthermore, it is particularly preferred that the control device 3 takes into account measurement signals of further vehicle sensors 23 in the control of the motors 5 '.
  • the vehicle sensors 23 are designed as acceleration sensors and in the case of a strong acceleration (for example, a strong deceleration) transmit a signal to the control device 3, whereby the Engines 5 'are at least temporarily stopped to increase the safety of the vehicle occupant.
  • FIG 3 shows a schematic perspective view of a second embodiment of a seat device 10 according to the invention, the seat device 10 having a backrest 11 and a seat part 12 similar to the first embodiment of the seat device 10.
  • the backrest 11 has two
  • the ultrasonic sensors 1 'according to the invention measure the distance of the shoulder blades of the driver to the backrest 11 and direct the measurement signal to the non-illustrated
  • Control device on.
  • An increased distance of the shoulder blades (for example, as a result of a driver's thickening) is interpreted by the control device as a fatigue indicator, the control device then as described for FIG
  • the zone 6 ' preferably comprises an ultrasonic transmitter or conventional seat heating elements for effecting thermal
  • Control device to be controlled.
  • Actuators with the sensors and actuators of the embodiment shown in FIG. 2 can be combined as desired.
  • a seat device which has both motor actuators as shown in Fig. 2 motors 5 'and thermal actuators 6', whereby a particularly effective treatment can be effected.
  • parts of the sensors at the same time can be combined as shown in Fig. 2 and thermal actuators 6'.
  • Actuators can be used and vice versa.
  • the imaged ultrasonic sensors 1 both for distance determination and as an ultrasonic transmitter for thermal
  • Treatment can be used.
  • FIG. 4 schematically shows an MRF / ERF coupling 30 according to the two-tank principle.
  • MRF / ERF coupling 30 is a first container 31 in a second container 32, wherein the first container 31 and the second container 32 are filled with a magnetorheological and / or an electrorheological fluid, so that by applying electrical and / or magnetic fields a particularly advantageous seat movement in all directions is possible.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention relates to a seat device (10), wherein the seat device has a sensor arrangement, a control device (3), and an actuator (4), wherein the sensor arrangement has at least one sensor, wherein the sensor arrangement is provided to detect various condition factors of vehicle occupants, in particular back, hip, and leg pain, wherein the control device (3) is provided to evaluate the condition factors, and wherein the actuator (4) can be controlled by the control device (3) in order to perform treatment measures on the vehicle occupants.

Description

Fahrzeugsitz mit intelligenten Aktuatoren  Vehicle seat with intelligent actuators
Die Erfindung betrifft eine Sitzvorrichtung, insbesondere einen Kraftfahrzeugsitz, mit einer Steuervorrichtung zur Steuerung der Sitzeinstellung und mit am Fahrzeugsitz und/oder am Fahrzeug angebrachten Sensoren zur Überwachung der Befindlichkeit der The invention relates to a seat device, in particular a motor vehicle seat, with a control device for controlling the seat adjustment and with attached to the vehicle seat and / or on the vehicle sensors for monitoring the condition of
Fahrzeuginsassen. Vehicle occupants.
Solche Sitzvorrichtungen für Kraftfahrzeuge sind bekannt und werden insbesondere zur Überwachung von Ermüdungserscheinungen des Fahrers eingesetzt, um im Falle eines kritischen Ermüdungszustandes den Fahrer zu warnen oder bereits präventiv bei Erkennen von Ermüdungserscheinungen Einstellungen des Fahrzeugsitzes mittels einer Such seat devices for motor vehicles are known and are used in particular for monitoring fatigue of the driver to warn the driver in the event of a critical state of fatigue or already preventive on detection of fatigue settings of the vehicle seat by means of a
Steuervorrichtung derart zu ändern, dass den Ermüdungserscheinungen entgegengewirkt wird. Eine solche Sitzvorrichtung ist beispielsweise aus der Druckschrift DE 40 22 423 C2 bekannt. Change control device such that the fatigue phenomena is counteracted. Such a seat device is known for example from the document DE 40 22 423 C2.
Es ist bekannt, dass Fahrzeuginsassen neben Ermüdungserscheinungen häufig jedoch auch auf Grund einer langen Fahrtdauer und/oder bei Fahrten mit hohen Belastungs- und It is known that vehicle occupants in addition to fatigue but often due to a long journey and / or driving with high load and
Stresssituation, beispielsweise im Stadtverkehr oder bei hohem Verkehrsaufkommen, unter Schmerzen, insbesondere im Rücken-, Hüft- und Beinbereich, leiden, die das Wohlbefinden der Fahrzeuginsassen maßgeblich verschlechtern und die Fahrtüchtigkeit des Fahrers deutlich mindern. Stress situation, for example, in city traffic or high traffic, in pain, especially in the back, hip and leg area suffer, which significantly worsen the well-being of the vehicle occupants and significantly reduce the driving ability of the driver.
Im Stand der Technik sind zwar Sitzvorrichtungen für Kraftfahrzeuge bekannt, bei denen neben Ermüdungserscheinungen auch weitere Befindlichkeitsfaktoren von Although seating devices for motor vehicles are known in the prior art, in addition to fatigue symptoms and other factors of sensitivity of
Fahrzeuginsassen überwacht werden und wobei die Sitzeinstellungen der Befindlichkeit der Fahrzeuginsassen angepasst wird. Solche Sitzvorrichtungen ermöglichen jedoch keine frühzeitige Erkennung von bei Fahrzeuginsassen auftretenden Schmerzen und eine besonders umfassende Bewirkung von Behandlungsmaßnahmen zur Prävention oder Linderung solcher Schmerzen. Vehicle occupants are monitored and wherein the seat settings of the condition of the vehicle occupant is adjusted. However, such seating devices do not allow early detection of pain experienced by vehicle occupants and a particularly comprehensive effect of treatment to prevent or alleviate such pain.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Sitzvorrichtung für ein Kraftfahrzeug bereitzustellen, wobei die Sitzvorrichtung eine Früherkennung der Befindlichkeitszustände der Fahrzeuginsassen, insbesondere eine Früherkennung von Rücken-, Hüft- und The invention is therefore an object of the invention to provide a seat device for a motor vehicle, wherein the seat device early detection of the states of mind of the vehicle occupants, in particular early detection of back, hip and
Beinschmerzen, ermöglicht und wobei die Sitzvorrichtung ferner zur Verbesserung der Befindlichkeitszustände, insbesondere zur Prävention und Linderung dieser Schmerzen, vorgesehen ist. Leg pain, and wherein the seat device is further provided for the improvement of the states of mind, in particular for the prevention and alleviation of this pain.
Diese Aufgabe wird erfindungsgemäß durch eine Sitzvorrichtung gelöst, wobei die This object is achieved by a seat device, wherein the
Sitzvorrichtung eine Sensoranordnung, eine Steuervorrichtung, bevorzugt einen Seating device, a sensor arrangement, a control device, preferably a
BESTÄTIGUNGSKOPIE Mikrokontroller, und einen Aktuator aufweist, wobei die Sensoranordnung wenigstens einen Sensor aufweist, wobei die Sensoranordnung zur Erfassung verschiedener CONFIRMATION COPY Microcontroller, and having an actuator, wherein the sensor arrangement comprises at least one sensor, wherein the sensor arrangement for detecting various
Befindlichkeitsfaktoren von Fahrzeuginsassen, insbesondere von Rücken-, Hüft- und Beinschmerzen, vorgesehen ist, wobei die Steuervorrichtung zur Auswertung der Sensitivity factors of vehicle occupants, in particular of back, hip and leg pain, is provided, wherein the control device for evaluating the
Befindlichkeitsfaktoren vorgesehen ist, und wobei der Aktuator zur Bewirkung von Sensitivity factors is provided, and wherein the actuator for effecting
Behandlungsmaßnahmen an den Fahrzeuginsassen durch die Steuervorrichtung steuerbar ist. Treatment measures to the vehicle occupants by the control device is controllable.
Es ist hierdurch erfindungsgemäß vorteilhaft möglich, dass die von der Steuervorrichtung gesteuerten Behandlungsmaßnahmen unter Berücksichtigung der gemessenen It is thereby advantageously possible according to the invention that the treatment measures controlled by the control device take into account the measured
Befindlichkeitsfaktoren auf den Befindlichkeitszustand der Fahrzeuginsassen abgestimmt werden, so dass die Behandlungsmaßnahmen besonders vorteilhaft auftretenden Sensitivity factors are tuned to the state of mind of the vehicle occupants, so that the treatment measures occurring particularly advantageous
Schmerzen entgegenwirken, so dass das Wohlbefinden der Fahrzeuginsassen und damit der Fahrkomfort erhöht wird. Insbesondere wird hierdurch auch die Fahrtüchtigkeit des Fahrers gesteigert und damit die Verkehrssicherheit maßgeblich verbessert. Counteract pain, so that the well-being of the vehicle occupants and thus the ride comfort is increased. In particular, this also increases the driving ability of the driver and thus significantly improves traffic safety.
Bevorzugt weist die Sensoranordnung eine Mehrzahl von Sensoren auf, wobei die Sensoren besonders bevorzugt als Ultraschallsensoren, als Mikrowellensensoren, als piezoelektrische Sensoren, als Widerstandssensoren, als Stromsensoren, als Temperatursensoren, als dielektrisches Elastomer und/oder als Drucksensoren ausgebildet sind. Hierdurch ist es vorteilhaft möglich, eine Vielzahl von Befindlichkeitsfaktoren zu erfassen, so dass die Befindlichkeit der Fahrzeuginsassen besonders präzise bestimmbar ist und auftretende Schmerzen frühzeitig erkennbar sind. Beispielsweise lassen sich Muskelverhärtungen über piezoelektrische Sensoren feststellen, während mittels eines dielektrischen Elastomers und/oder eines Drucksensors eine gekrümmte Sitzhaltung eines Fahrzeuginsassen detektierbar ist. The sensor arrangement preferably has a plurality of sensors, wherein the sensors are particularly preferably embodied as ultrasonic sensors, as microwave sensors, as piezoelectric sensors, as resistance sensors, as current sensors, as temperature sensors, as a dielectric elastomer and / or as pressure sensors. As a result, it is advantageously possible to detect a multiplicity of sensitivities, so that the condition of the vehicle occupants can be determined particularly precisely and any pain occurring can be recognized early on. For example, muscle hardening can be detected via piezoelectric sensors, while a curved seat posture of a vehicle occupant can be detected by means of a dielectric elastomer and / or a pressure sensor.
Erfindungsgemäß ist weiterhin bevorzugt vorgesehen, dass die Sensoranordnung einen Sensor zur Überwachung des Ermüdungszustands des Fahrers aufweist. Vorzugsweise umfasst die Sensoranordnung hierzu eine CCD-Kamera und/oder einen Ultraschallsensor. Die CCD-Kamera erfasst erfindungsgemäß beispielsweise den Ermüdungszustand anhand von Kopf- und/oder Augenbewegungen, während die Ultraschallsensoren zur Überwachung der Sitzhaltung des Fahrers vorgesehen sind und beispielsweise ein Nachvornebeugen des Fahrers in Folge eines Einnickens detektieren. According to the invention, it is furthermore preferably provided that the sensor arrangement has a sensor for monitoring the state of fatigue of the driver. For this purpose, the sensor arrangement preferably comprises a CCD camera and / or an ultrasound sensor. The CCD camera detects according to the invention, for example, the fatigue state based on head and / or eye movements, while the ultrasonic sensors are provided for monitoring the driver's posture and detect, for example Nachvornebeugen the driver as a result of Einnickens.
Besonders bevorzugt ist es vorgesehen, dass zumindest ein Teil der Sensoren erst in einem bestimmten Betriebszustand des Fahrzeuges aktiviert ist. Beispielsweise werden Sensoren, die die Sitzhaltung der Fahrzeuginsassen überwachen, erst nach einer gewissen Zeit nach Beginn der Autofahrt aktiv, so dass sichergestellt wird, dass die Fahrzeuginsassen bereits ihre Reise-Sitzposition eingenommen haben. Particularly preferably, it is provided that at least a part of the sensors is activated only in a specific operating state of the vehicle. For example, sensors that monitor the sitting posture of the vehicle occupants only become weak after a certain time Start of the car ride active, so as to ensure that the occupants have already taken their travel seating position.
Besonders bevorzugt werden erfindungsgemäß als Sensoren zumindest teilweise bereits vorhandene Fahrzeugkomponenten eingesetzt, beispielsweise kapazitive Sensoren, die im Stand der Technik üblicherweise zur Feststellung der Fahrzeugsitzbelegung verwendet werden. Hierdurch ist es möglich, den Erfindungsgegenstand besonders kostengünstig zu realisieren. According to the invention, at least partially existing vehicle components, for example capacitive sensors, which are usually used in the prior art for determining the vehicle seat occupancy, are particularly preferably used according to the invention. This makes it possible to realize the subject invention particularly cost.
Ferner ist es bevorzugt, dass die Sitzvorrichtung eine Warnvorrichtung umfasst, wobei die Warnvorrichtung von der Steuervorrichtung gesteuert wird, und wobei die Warnvorrichtung Fahrzeuginsassen über ihren Befindlichkeitszustand informiert und im Falle eines kritischen Befindlichkeitszustands den Fahrzeuginsassen warnt. Eine solche Warnung erfolgt erfindungsgemäß beispielsweise, wenn Rückenschmerzen von der Sensoranordnung festgestellt werden, wenn die Fahrtzeit eine kritische Dauer überschritten hat oder wenn mittels der Sensoranordnung eine Ermüdung des Fahrers festgestellt wurde. Hierdurch ist es vorteilhaft möglich, dass die Fahrzeuginsassen rechtzeitig eigene Maßnahmen zur Furthermore, it is preferred that the seat device comprises a warning device, wherein the warning device is controlled by the control device, and wherein the warning device informs vehicle occupants about their state of health and warns the vehicle occupants in the event of a critical state of health. Such a warning is carried out according to the invention, for example, when back pain is detected by the sensor assembly when the travel time has exceeded a critical duration or when fatigue of the driver has been detected by means of the sensor arrangement. This advantageously makes it possible for the vehicle occupants to take their own measures in good time
Verbesserung ihres Befindlichkeitszustandes ergreifen können. Improvement of their state of health can take.
Erfindungsgemäß ist weiterhin bevorzugt, dass die Sitzvorrichtung eine Mehrzahl von Aktuatoren aufweist, wobei die Aktuatoren besonders bevorzugt einzeln über die According to the invention, it is further preferred that the seat device has a plurality of actuators, wherein the actuators particularly preferably individually via the
Steuervorrichtung ansteuerbar sind. Vorzugsweise sind die Aktuatoren derart ausgebildet, dass eine Vielzahl von Behandlungmaßnahmen durch die Aktuatoren bewirkbar ist. Control device can be controlled. Preferably, the actuators are designed such that a multiplicity of treatment measures can be effected by the actuators.
Insbesondere sind die Aktuatoren zur Bewirkung von massageähnlichen Bewegungen, 2D oder 3D-Bewegungen und/oder Vibrationsbewegungen des Fahrzeugsitzes vorgesehen. Erfindungsgemäß sind die Aktuatoren beispielsweise als elektromechanische Motoren, als dielektrische Elastomer-Aktoren, als Luftkissen und/oder als sonstige aus dem Stand der Technik bekannte Antriebe ausgebildet. Weiterhin bevorzugt ist, dass die Aktuatoren zur Bewirkung von Wärmebehandlungen vorgesehen sind, wobei die Aktuatoren vorzugsweise als Ultraschallwellen-Sender und/oder als konventionelle für die Sitzheizung verwendete Heizelemente ausgebildet sind. In particular, the actuators are provided for effecting massage-like movements, 2D or 3D movements and / or vibration movements of the vehicle seat. According to the invention, the actuators are designed, for example, as electromechanical motors, as dielectric elastomer actuators, as air cushions and / or as other drives known from the prior art. It is further preferred that the actuators are provided for effecting heat treatments, wherein the actuators are preferably designed as ultrasonic wave transmitters and / or as conventional heating elements used for the seat heating.
Besonders bevorzugt ist es ferner vorgesehen, dass als Aktuatoren zumindest teilweise bereits im Fahrzeug vorhandene Komponenten wie beispielsweise bestehende It is also particularly preferred that at least some components already present in the vehicle, such as existing ones, are used as actuators
Sitzverstellvorrichtungen eingesetzt werden. Umgekehrt ist es gemäß der Erfindung bevorzugt, dass zusätzliche zur Bewirkung von Behandlungsmaßnahmen eingesetzte Aktuatoren gleichzeitig weitere Sitzverstellfunktionen ermöglichen. Beispielsweise ist vorgesehen, dass ein Aktuator gleichzeitig zur Bewirkung einer Massagebewegung und zur Verstellung der Sitzvorrichtung in eine für den Fahrzeuginsassen besonders vorteilhafte Ein- und Ausstiegsposition, insbesondere durch Drehung und/oder Verkippung der Sitzvorrichtung, vorgesehen ist. Hierdurch ist es erfindungsgemäß möglich, den Seat adjusters are used. Conversely, it is preferred according to the invention that additional actuators used to effect treatment measures simultaneously enable further Sitzverstellfunktionen. For example, it is provided that an actuator at the same time for effecting a massage movement and for adjusting the seat device in a particularly advantageous for the vehicle occupant one and exit position, in particular by rotation and / or tilting of the seat device, is provided. This makes it possible according to the invention
Fahrzeuginsassen einen besonders hohen Komfort bereitzustellen und gleichzeitig den Erfindungsgegenstand vergleichsweise kostengünstig zu realisieren. To provide vehicle occupants a particularly high level of comfort and at the same time to realize the subject invention comparatively inexpensive.
Erfindungsgemäß werden die von den Aktuatoren bewirkten Behandlungsmaßnahmen und Sitzbewegungen bevorzugt über einen geschlossenen Regelkreis gesteuert, wodurch eine besonders stabile und präzise Sitzbewegung ermöglicht und eine besonders wertige According to the invention, the treatment measures and seat movements effected by the actuators are preferably controlled via a closed control loop, which allows a particularly stable and precise seat movement and a particularly high value
Behandlungsmaßnahme erzielt wird. Gegenüber einem konventionellen geschlossenen Regelkreis ist ferner bevorzugt vorgesehen, dass die Aktuatoren gleichzeitig auch als Sensor agieren, wodurch der geschlossene Regelkreis besonders kostengünstig realisierbar ist. Treatment measure is achieved. In contrast to a conventional closed-loop control system, it is further preferred that the actuators also act as a sensor at the same time, as a result of which the closed control loop can be realized in a particularly cost-effective manner.
Erfindungsgemäß ist ferner bevorzugt, dass die Steuervorrichtung in einer Mehrzahl von Betriebsmodi einstellbar ist, wobei der eingestellte Betriebsmodus die Art und Intensität der von der Steuervorrichtung gesteuerten Behandlungsmaßnahme vorgibt. Weiterhin ist besonders bevorzugt, dass die Behandlungsmaßnahme für jeden Fahrzeuginsassen individuell gesteuert wird. Hierdurch wird ermöglicht, dass die Behandlungsmaßnahme in besonders vorteilhafter Weise der Befindlichkeit und den Bedürfnissen der According to the invention it is further preferred that the control device is adjustable in a plurality of operating modes, wherein the set operating mode dictates the type and intensity of the treatment measure controlled by the control device. Furthermore, it is particularly preferred that the treatment measure for each vehicle occupant is controlled individually. This makes it possible that the treatment measure in a particularly advantageous manner the condition and needs of
Fahrzeuginsassen anpassbar ist. Vehicle occupant is customizable.
Ganz besonders bevorzugt ist eine Kopplung der Steuervorrichtung an weitere Sensoren des Fahrzeugs vorgesehen, wobei die weiteren Sensoren den Betriebszustand des Fahrzeugs überwachen. Hierdurch ist es vorteilhaft möglich, dass die Steuervorrichtung in Abhängigkeit vom Betriebszustand des Fahrzeugs automatisch in einen bestimmten Betriebsmodus eingestellt wird. So ist es denkbar, dass bestimmte Behandlungsmaßnahmen nur in einer Parkposition des Fahrzeugs bewirkt werden oder dass sämtliche Behandlungsmaßnahmen zur Erhöhung der Sicherheit in einer Gefahrensituation, beispielsweise wenn von den Fahrzeugsensoren hohe Beschleunigungskräfte signalisiert werden, gänzlich gestoppt werden. Very particularly preferably, a coupling of the control device to other sensors of the vehicle is provided, wherein the other sensors monitor the operating state of the vehicle. As a result, it is advantageously possible for the control device to be automatically set to a specific operating mode as a function of the operating state of the vehicle. Thus, it is conceivable that certain treatment measures are effected only in a parking position of the vehicle or that all treatment measures to increase safety in a dangerous situation, for example, when the vehicle sensors high acceleration forces are signaled to be stopped altogether.
Weiterhin ist es erfindungsgemäß bevorzugt, dass die Sitzvorrichtung zur Erzeugung der Sitzbewegungen eine magnetorheologische Flüssigkeitskupplung (im Folgenden als„MRF- Kupplung" bezeichnet) und/oder eine elektrorheologische Flüssigkeitskupplung (im Furthermore, it is inventively preferred that the seat device for generating the seat movements a magnetorheological fluid coupling (hereinafter referred to as "MRF coupling") and / or an electrorheological fluid coupling (im
Folgenden als„ERF-Kupplung" bezeichnet) aufweist. Besonders bevorzugt ist die Kupplung gemäß eines Zwei-Behälter-Prinzips ausgebildet, wobei sich ein erster Behälter in einem zweiten Behälter befindet und wobei der erste und der zweite Behälter mit einer Hereinafter referred to as "ERF coupling".) Particularly preferably, the coupling is formed according to a two-container principle, wherein a first container is located in a second container and wherein the first and the second container with a
elektrorheologischen und/oder einer magnetorheologischen Flüssigkeit gefüllt sind. are filled electrorheological and / or a magnetorheological fluid.
Erfindungsgemäß ist hierdurch eine Sitzbewegung in alle Raumrichtungen möglich, wobei die Sitzbewegung ferner besonders stabil ausführbar ist. Im Folgenden wird die Erfindung anhand von Zeichnungen und unter Angabe weiterer Vorteile und Einzelheiten näher erläutert. Es zeigen According to the invention thereby a seat movement in all directions is possible, the seat movement is also particularly stable executable. In the following the invention with reference to drawings and specifying further advantages and details will be explained in more detail. Show it
Figur 1 einen geschlossenen Regelkreis gemäß dem Stand der Technik, 1 shows a closed loop according to the prior art,
Figur 2 ein erstes Ausführungsbeispiel der erfindungsgemäßen Sitzvorrichtung, 2 shows a first embodiment of the seat device according to the invention,
Figur 3 ein zweites Ausführungsbeispiel der erfindungsgemäßen Sitzvorrichtung, FIG. 3 shows a second embodiment of the seat device according to the invention,
Figur 4 eine erfindungsgemäße MRF/ERF-Kupplung gemäß des Zwei-Behälter-Prinzips. 4 shows an inventive MRF / ERF coupling according to the two-tank principle.
In Figur 1 ist ein Flussdiagramm eines geschlossenen Regelkreises gemäß dem Stand der Technik vorgesehen. Hierbei wird ein System 1 (beispielsweise eine Sitzvorrichtung) mit einer Sollbeaufschlagung 5 (beispielsweise einer Kraftbeaufschlagung) beaufschlagt, wobei am System 1 hierdurch eine Bewegung 6 (beispielsweise eine Sitzbewegung) bewirkt wird, wobei die Bewegung 6 auf Grund einer Störung 10' am System 1 (beispielsweise einer äußeren Fahrzeugbewegung) von der durch die Sollbeaufschlagung 5 vorgegebenen Sollbewegung abweicht. Die Bewegung 6 wird mittels eines Sensors 2 gemessen, wobei der Sensor 2 einen Messwert 7 an eine Steuervorrichtung 3 (beispielsweise an einen FIG. 1 provides a flow diagram of a closed loop according to the prior art. Here, a system 1 (for example, a seat device) with a target loading 5 (for example, a force applied) is applied to the system 1 thereby a movement 6 (for example, a seat movement) is effected, the movement 6 due to a fault 10 'on the system (For example, an external vehicle movement) deviates from the predetermined by the target loading 5 target movement. The movement 6 is measured by means of a sensor 2, wherein the sensor 2 a measured value 7 to a control device 3 (for example, to a
Mikroprozessor) übermittelt. Die Steuervorrichtung 3 ermittelt die Abweichung 8 zwischen der Bewegung 6 und der Sollbewegung und übermittelt ein Stellsignal an einen Aktuator 4 (beispielsweise einen elektromechanischen Motor), woraufhin der Aktuator 4 das System 1 mit einer Korrekturbeaufschlagung beaufschlagt. Über den geschlossenen Regelkreis wird erfindungsgemäß somit beispielsweise eine besonders stabile und präzise Sitzbewegung realisiert. Ferner ist es bevorzugt vorgesehen, dass für die Sensoren und Aktuatoren die gleichen Komponenten verwendet werden. Beispielsweise lässt sich dies über die Microprocessor). The control device 3 determines the deviation 8 between the movement 6 and the desired movement and transmits an actuating signal to an actuator 4 (for example an electromechanical motor), whereupon the actuator 4 applies a correction to the system 1. About the closed loop according to the invention thus, for example, a particularly stable and precise seat movement is realized. Furthermore, it is preferably provided that the same components are used for the sensors and actuators. For example, this can be done over the
Verwendung eines dielektrischen Elastomers realisieren, welches gleichzeitig als Sensor und als Aktuator für eine Sitzbewegung eingesetzt werden kann. Hierdurch ist erfindungsgemäß die Regelung der Sitzbewegung besonders kostengünstig möglich. Use of a dielectric elastomer realize, which can be used simultaneously as a sensor and as an actuator for a seat movement. As a result, according to the invention, the regulation of the seat movement is possible in a particularly cost-effective manner.
In Figur 2 ist eine schematisch perspektivische Darstellung einer ersten Ausführungsform einer erfindungsgemäßen Sitzvorrichtung 10 abgebildet, wobei die Sitzvorrichtung 10 eine Rückenlehne 11 und ein Sitzteil 12 aufweist. Die Rückenlehne 11 umfasst 2 shows a schematic perspective view of a first embodiment of a seat device 10 according to the invention, wherein the seat device 10 has a backrest 11 and a seat part 12. The backrest 11 includes
Ultraschallsensoren 1 ' und/oder Drucksensoren 2', wobei die Ultraschallsensoren 1 ' und/oder Drucksensoren 2' mit einer Steuervorrichtung 3 verbunden sind. Das Sitzteil 12 umfasst eine Mehrzahl von Motoren 5' zur Bewirkung von Sitzbewegungen, insbesondere Massagebewegungen oder Vibrationen, wobei die Motoren 5' mit der Steuervorrichtung 3 verbunden sind. Ferner umfasst die Sitzvorrichtung eine Kamera 4', bevorzugt eine CCD- Kamera, die ebenfalls mit der Steuervorrichtung 3 verbunden ist. Die Kamera ist Ultrasonic sensors 1 'and / or pressure sensors 2', wherein the ultrasonic sensors 1 'and / or pressure sensors 2' are connected to a control device 3. The seat part 12 comprises a plurality of motors 5 'for effecting seat movements, in particular massage movements or vibrations, wherein the motors 5' are connected to the control device 3. Furthermore, the seat device comprises a camera 4 ', preferably a CCD camera, which is also connected to the control device 3. The camera is
beispielsweise am Rückspiegel des Fahrzeugs befestigt und überwacht die Augen- und/oder Kopfbewegung des Fahrers. Die Steuervorrichtung 3 weist weiterhin Bedienelemente 20, bevorzugt einen Schalter auf, wobei mittels der Bedienelemente 20 die Steuervorrichtung 5 in einen manuellen Betriebsmodus 21 oder einen automatisierten Betriebsmodus 22 einstellbar ist. Weiterhin ist die Steuervorrichtung mit weiteren Fahrzeugsensoren 23 verbunden. Erfindungsgemäß wird mittels der Ultraschallsensoren 1 ' und/oder der for example, attached to the rearview mirror of the vehicle and monitors the eyes and / or Head movement of the driver. The control device 3 furthermore has operating elements 20, preferably a switch, wherein by means of the operating elements 20 the control device 5 can be set to a manual operating mode 21 or an automated operating mode 22. Furthermore, the control device is connected to further vehicle sensors 23. According to the invention by means of the ultrasonic sensors 1 'and / or the
Drucksensoren 2' die Befindlichkeit des Fahrers überwacht. Bevorzugt wird mittels der Ultraschallsensoren 1 ' der Abstand des Fahrers von der Rückenlehne gemessen und/oder mittels der Drucksensoren 2' die vom Fahrer auf die Rückenlehne 1 1 übertragene Pressure sensors 2 'monitors the driver's condition. Preferably, the distance of the driver from the backrest is measured by means of the ultrasonic sensors 1 'and / or by means of the pressure sensors 2' transmitted by the driver to the backrest 1 1
Druckbeaufschlagung ermittelt. Die Messsignale werden von den Sensoren V,2' an die Steuervorrichtung 3 zur Auswertung übertragen, wobei die Steuervorrichtung 3 aus den Messsignalen zumindest teilweise die Befindlichkeit des Fahrzeuginsassen ableitet. Pressurization detected. The measurement signals are transmitted from the sensors V, 2 'to the control device 3 for evaluation, the control device 3 deriving from the measurement signals at least partially the condition of the vehicle occupant.
Erfindungsgemäß lässt sich mittels der Sensoren 1 ',2' eine durch Rückenschmerzen hervorgerufene gekrümmte Sitzhaltung des Fahrers feststellen. Die Steuervorrichtung sendet in einem solchen Fall Steuersignale an die Motoren 5' zur Bewirkung von Sitzbewegungen, die eine Verbesserung der Befindlichkeit des Fahrers hervorrufen sollen, beispielsweise durch eine Linderung der festgestellten Rückenschmerzen. Die Steuerung der Sitzbewegung erfolgt hierbei vorzugsweise über einen geschlossenen Regelkreis gemäß Fig. 1. Ferner wird der Ermüdungszustand des Fahrers erfindungsgemäß durch die Kamera 4' überwacht, wobei die Kamera Augen- und/oder Kopfbewegungen des Fahrers aufzeichnet und zur Auswertung an die Steuervorrichtung 3 überträgt. Die Steuervorrichtung 3 beurteilt den Ermüdungszustand anhand von verschiedenen Müdigkeitsindikatoren und warnt den Fahrer im Falle eines kritischen Ermüdungszustandes. Der Warnhinweis kann erfindungsgemäß bevorzugt als optisches oder akustisches Signal erfolgen (nicht dargestellt). Ferner ist aber auch denkbar, dass die Steuervorrichtung 3 mittels der Motoren 5' eine Vibrationsbewegung der Sitzvorrichtung bewirkt, die den Fahrer wachrüttelt. Erfindungsgemäß bevorzugt kann die Steuervorrichtung über das Bedienelement 20 ein- oder ausgestellt werden bzw. in verschiedene automatisierte Betriebsmodi 22 eingestellt werden. Beispielsweise sind verschiedene Betriebsmodi 22 für Autofahrten auf Kurz- oder Langstrecken denkbar. Ebenso ist denkbar, dass in den Betriebsmodi 22 bestimmte konfigurierbare Fahrerprofile According to the invention can be detected by the painter 1 ', 2' caused by back pain curved posture of the driver. The control device in such a case sends control signals to the motors 5 'for effecting seat movements, which are intended to bring about an improvement in the driver's condition, for example by alleviating the detected back pain. The control of the seat movement is in this case preferably via a closed loop according to FIG. 1. Further, the fatigue state of the driver according to the invention by the camera 4 'monitored, the camera records eye and / or head movements of the driver and transmits to the control device 3 for evaluation , The control device 3 judges the fatigue state based on various fatigue indicators and warns the driver in case of a critical fatigue state. The warning can be according to the invention preferably as an optical or acoustic signal (not shown). Furthermore, however, it is also conceivable that the control device 3 causes a vibration movement of the seat device by means of the motors 5 ', which shakes the driver awake. According to the invention, the control device can be switched on or off via the operating element 20 or set in various automated operating modes 22. For example, different modes of operation 22 for car trips on short or long distances are conceivable. It is also conceivable that in the operating modes 22 certain configurable driver profiles
berücksichtigt werden, so dass die durch die Steuervorrichtung 3 aktivierten be taken into account so that the activated by the control device 3
Behandlungsmaßnahmen in besonders geeigneter Form auf unterschiedliche Treatment measures in a particularly suitable form to different
Fahrzeuginsassen angepasst werden kann. Weiterhin ist besonders bevorzugt, dass die Steuervorrichtung 3 Messsignale weiterer Fahrzeugsensoren 23 bei der Steuerung der Motoren 5' berücksichtigt. Beispielsweise ist es denkbar, dass die Fahrzeugsensoren 23 als Beschleunigungssensoren ausgebildet sind und im Falle einer starken Beschleunigung (z.B. einer starken Abbremsung) ein Signal an die Steuervorrichtung 3 übermitteln, wodurch die Motoren 5' zumindest zeitweise gestoppt werden, um die Sicherheit des Fahrzeuginsassen zu erhöhen. Vehicle occupants can be adjusted. Furthermore, it is particularly preferred that the control device 3 takes into account measurement signals of further vehicle sensors 23 in the control of the motors 5 '. For example, it is conceivable that the vehicle sensors 23 are designed as acceleration sensors and in the case of a strong acceleration (for example, a strong deceleration) transmit a signal to the control device 3, whereby the Engines 5 'are at least temporarily stopped to increase the safety of the vehicle occupant.
In Figur 3 ist eine schematisch perspektivische Darstellung einer zweiten Ausführungsform einer erfindungsgemäßen Sitzvorrichtung 10 abgebildet, wobei die Sitzvorrichtung 10 ähnlich der ersten Ausführungsform der Sitzvorrichtung 10 eine Rückenlehne 11 und ein Sitzteil 12 aufweist. Gemäß der zweiten Ausführungsform weist die Rückenlehne 11 zwei 3 shows a schematic perspective view of a second embodiment of a seat device 10 according to the invention, the seat device 10 having a backrest 11 and a seat part 12 similar to the first embodiment of the seat device 10. According to the second embodiment, the backrest 11 has two
Ultraschallsensoren 1 ' im Schulterbereich und eine Zone 6' für eine thermische Behandlung auf. Die Ultraschallsensoren 1' messen erfindungsgemäß den Abstand der Schulterblätter des Fahrers zur Rückenlehne 11 und leiten das Messsignal an die nicht abgebildete Ultrasonic sensors 1 'in the shoulder area and a zone 6' for a thermal treatment on. The ultrasonic sensors 1 'according to the invention measure the distance of the shoulder blades of the driver to the backrest 11 and direct the measurement signal to the non-illustrated
Steuervorrichtung weiter. Ein erhöhter Abstand der Schulterblätter (beispielsweise in Folge eines Einnickens des Fahrers) wird von der Steuervorrichtung als Müdigkeitsindikator interpretiert, wobei die Steuervorrichtung daraufhin wie für Fig. 2 beschrieben einen Control device on. An increased distance of the shoulder blades (for example, as a result of a driver's thickening) is interpreted by the control device as a fatigue indicator, the control device then as described for FIG
Warnhinweis an den Fahrer übermittelt. Die Zone 6' umfasst bevorzugt einen Ultraschall- Sender oder konventionelle Sitzheizelemente zum Bewirken thermischer Warning message transmitted to the driver. The zone 6 'preferably comprises an ultrasonic transmitter or conventional seat heating elements for effecting thermal
Behandlungsmaßnahmen, insbesondere zur Linderung von Rückenschmerzen, wobei die thermischen Behandlungsmaßnahmen ebenfalls über die nicht abgebildete Treatment measures, in particular for the relief of back pain, wherein the thermal treatment measures also on the non-pictured
Steuervorrichtung gesteuert werden. Control device to be controlled.
Es versteht sich für den Fachmann, dass die in Fig. 3 abgebildeten Sensoren und It will be understood by those skilled in the art that the sensors shown in FIG
Aktuatoren mit den Sensoren und Aktuatoren der in Fig. 2 dargestellten Ausführungsform beliebig kombiniert werden können. Beispielsweise ist somit auch eine Sitzvorrichtung denkbar, die sowohl motorische Aktuatoren wie die in Fig. 2 abgebildeten Motoren 5' als auch thermische Aktuatoren 6' aufweist, wodurch eine besonders wirksame Behandlung bewirkt werden kann. Ebenso ist denkbar, dass Teile der Sensoren gleichzeitig als Actuators with the sensors and actuators of the embodiment shown in FIG. 2 can be combined as desired. For example, therefore, a seat device is conceivable, which has both motor actuators as shown in Fig. 2 motors 5 'and thermal actuators 6', whereby a particularly effective treatment can be effected. It is also conceivable that parts of the sensors at the same time as
Aktuatoren einsetzbar sind und umgekehrt. So sind die abgebildeten Ultraschallsensoren 1 ' sowohl zur Abstandsbestimmung als auch als Ultraschall-Sender zur thermischen Actuators can be used and vice versa. Thus, the imaged ultrasonic sensors 1 'both for distance determination and as an ultrasonic transmitter for thermal
Behandlung einsetzbar. Treatment can be used.
In Figur 4 ist schematisch eine MRF-/ERF-Kupplung 30 gemäß des Zwei-Behälter-Prinzips dargestellt. Bei der MRF-/ERF-Kupplung 30 befindet sich ein erster Behälter 31 in einem zweiten Behälter 32, wobei der erste Behälter 31 und der zweite Behälter 32 mit einer magnetorheologischen und/oder einer elektrorheologischen Flüssigkeit gefüllt sind, so dass durch Anlegen von elektrischen und/oder magnetischen Feldern eine besonders vorteilhafte Sitzbewegung in alle Richtungen ermöglicht wird. Bezugszeichenliste FIG. 4 schematically shows an MRF / ERF coupling 30 according to the two-tank principle. In the MRF / ERF coupling 30 is a first container 31 in a second container 32, wherein the first container 31 and the second container 32 are filled with a magnetorheological and / or an electrorheological fluid, so that by applying electrical and / or magnetic fields a particularly advantageous seat movement in all directions is possible. LIST OF REFERENCE NUMBERS
1 System 1 system
r Ultraschallsensoren r ultrasonic sensors
2 Sensor  2 sensor
2' Drucksensoren  2 'pressure sensors
3 Steuervorrichtung  3 control device
4 Aktuator  4 actuator
4' Kamera  4 'camera
5 Sollbeaufschlagung  5 targeting
5' Motoren  5 'engines
6 Bewegung  6 movement
6' Zone für eine thermische Behandlung 6 'zone for a thermal treatment
7 Messwert 7 measured value
8 Abweichung  8 deviation
10 Sitzvorrichtung  10 seat device
10' Störung  10 'fault
11 Rückenlehne  11 backrest
12 Sitzteil  12 seat part
20 Bedienelemente  20 controls
21 manueller Betriebsmodus  21 manual operating mode
22 automatisierter Betriebsmodus 22 automated operating mode
23 weitere Fahrzeugsensoren 23 other vehicle sensors
30 MRF-/ERF-Kupplung  30 MRF / ERF coupling
31 erster Behälter  31 first container
32 zweiter Behälter  32 second container

Claims

Patentansprüche claims
1. Sitzvorrichtung (10), wobei die Sitzvorrichtung (10) eine Sensoranordnung, eine 1. seat device (10), wherein the seat device (10) has a sensor arrangement, a
Steuervorrichtung (3), und einen Aktuator (4) aufweist, wobei die Sensoranordnung wenigstens einen Sensor aufweist, wobei die Sensoranordnung zur Erfassung verschiedener Befindlichkeitsfaktoren von Fahrzeuginsassen vorgesehen ist, wobei die Steuervorrichtung (3) zur Auswertung der Befindlichkeitsfaktoren vorgesehen ist, und wobei der Aktuator zur Bewirkung von Behandlungsmaßnahmen an den  Control device (3), and an actuator (4), wherein the sensor arrangement comprises at least one sensor, wherein the sensor arrangement is provided for detecting various factors of sensitivity of vehicle occupants, wherein the control device (3) is provided for evaluating the condition factors, and wherein the actuator to effect treatment measures on the
Fahrzeuginsassen durch die Steuervorrichtung (3) steuerbar ist.  Vehicle occupant by the control device (3) is controllable.
2. Sitzvorrichtung (10) nach Anspruch 1 , dadurch gekennzeichnet, dass die 2. Seat device (10) according to claim 1, characterized in that the
Befindlichkeitsfaktoren Indikatoren von Rücken-, Hüft- und/oder Beinschmerzen des Fahrzeuginsassen sind.  Condition factors are indicators of back, hip and / or leg pain of the vehicle occupant.
3. Sitzvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch 3. seat device (10) according to any one of the preceding claims, characterized
gekennzeichnet, dass die Sensoranordnung eine Mehrzahl von Sensoren aufweist, wobei die Sensoren bevorzugt als Ultraschallsensoren, als Mikrowellensensoren, als piezoelektrische Sensoren, als Widerstandssensoren, als Stromsensoren, als  characterized in that the sensor arrangement comprises a plurality of sensors, wherein the sensors are preferred as ultrasonic sensors, as microwave sensors, as piezoelectric sensors, as resistance sensors, as current sensors, as
Temperatursensoren, als dielektrisches Elastomer und/oder als Drucksensoren ausgebildet sind.  Temperature sensors, as a dielectric elastomer and / or as pressure sensors are formed.
4. Sitzvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch 4. seat device (10) according to any one of the preceding claims, characterized
gekennzeichnet, dass die Sensoranordnung einen Sensor zur Überwachung des Ermüdungszustands des Fahrers aufweist, insbesondere eine CCD-Kamera und/oder einen Ultraschallsensor.  in that the sensor arrangement has a sensor for monitoring the state of fatigue of the driver, in particular a CCD camera and / or an ultrasonic sensor.
5. Sitzvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch 5. seat device (10) according to one of the preceding claims, characterized
gekennzeichnet, dass die Sitzvorrichtung (10) eine Warnvorrichtung umfasst, wobei die Warnvorrichtung von der Steuervorrichtung (3) gesteuert ist, wobei die  characterized in that the seat device (10) comprises a warning device, wherein the warning device is controlled by the control device (3), wherein the
Warnvorrichtung Fahrzeuginsassen über ihren Befindlichkeitszustand informiert und wobei im Falle eines kritischen Befindlichkeitszustands den Fahrzeuginsassen die Generierung einer Warnung vorgesehen ist. Warning device vehicle occupants informed about their state of mind and wherein in the case of a critical condition of the condition the vehicle occupants the generation of a warning is provided.
6. Sitzvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch 6. Seat device (10) according to any one of the preceding claims, characterized
gekennzeichnet, dass die Sitzvorrichtung (10) eine Mehrzahl von Aktuatoren aufweist, wobei die Aktuatoren bevorzugt einzeln über die Steuervorrichtung (3) ansteuerbar sind, insbesondere zur Bewirkung von massageähnlichen Bewegungen, 2D oder 3D-Bewegungen und/oder Vibrationsbewegungen von wenigstens einem Teil der Sitzvorrichtung (10).  characterized in that the seat device (10) comprises a plurality of actuators, wherein the actuators are preferably individually controllable via the control device (3), in particular for effecting massage-like movements, 2D or 3D movements and / or vibration movements of at least part of the seat device (10).
7. Sitzvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch 7. Seat device (10) according to any one of the preceding claims, characterized
gekennzeichnet, dass wenigstens ein Aktuator (4) zur Bewirkung von  characterized in that at least one actuator (4) for effecting
Behandlungsmaßnahmen und zur Bewirkung einer Sitzverstellung der Sitzvorrichtung (10) vorgesehen ist.  Treatment measures and for effecting a seat adjustment of the seat device (10) is provided.
8. Sitzvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch 8. Seat device (10) according to one of the preceding claims, characterized
gekennzeichnet, dass die Steuervorrichtung (3) mit weiteren Sensoren des  in that the control device (3) is connected to further sensors of the
Fahrzeugs gekoppelt ist, wobei die weiteren Sensoren den Betriebszustand des Fahrzeugs überwachen und wobei mittels der Steuervorrichtung in Abhängigkeit vom Betriebszustand des Fahrzeugs ein bestimmter Betriebsmodus der Sitzvorrichtung (10) einstellbar ist.  Vehicle is coupled, wherein the further sensors monitor the operating condition of the vehicle and wherein by means of the control device in dependence on the operating condition of the vehicle, a certain operating mode of the seat device (10) is adjustable.
9. Sitzvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch 9. seat device (10) according to any one of the preceding claims, characterized
gekennzeichnet, dass die Sitzvorrichtung (10) zur Erzeugung einer Bewegung der Sitzvorrichtung (10) eine magnetorheologische Flüssigkeitskupplung und/oder eine elektrorheologische Flüssigkeitskupplung aufweist.  in that the seat device (10) has a magnetorheological fluid coupling and / or an electrorheological fluid coupling for producing a movement of the seat device (10).
PCT/EP2011/001860 2010-05-21 2011-04-13 Vehicle seat having intelligent actuators WO2011144280A1 (en)

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US9827888B2 (en) 2016-01-04 2017-11-28 Lear Corporation Seat assemblies with adjustable side bolster actuators
US10569668B2 (en) 2017-12-21 2020-02-25 Lear Corporation Occupant and fidget detection of a seat assembly
US11052223B2 (en) 2017-12-21 2021-07-06 Lear Corporation Seat assembly and method
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