DE102005058973A1 - Sensor device for e.g. vehicle seat, has piezoelectric foils attached at head-rest of vehicle seat by using double-sided adhesive film, and providing sensor signals corresponding to pressure on foils - Google Patents
Sensor device for e.g. vehicle seat, has piezoelectric foils attached at head-rest of vehicle seat by using double-sided adhesive film, and providing sensor signals corresponding to pressure on foils Download PDFInfo
- Publication number
- DE102005058973A1 DE102005058973A1 DE102005058973A DE102005058973A DE102005058973A1 DE 102005058973 A1 DE102005058973 A1 DE 102005058973A1 DE 102005058973 A DE102005058973 A DE 102005058973A DE 102005058973 A DE102005058973 A DE 102005058973A DE 102005058973 A1 DE102005058973 A1 DE 102005058973A1
- Authority
- DE
- Germany
- Prior art keywords
- vehicle seat
- pressure
- seat
- sensor device
- foils
- 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- Withdrawn
Links
- 239000011888 foil Substances 0.000 title claims abstract description 12
- 239000002313 adhesive film Substances 0.000 title abstract description 3
- 238000011156 evaluation Methods 0.000 claims abstract description 15
- 230000003213 activating effect Effects 0.000 claims 1
- 239000003973 paint Substances 0.000 description 4
- 230000004913 activation Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01516—Passenger detection systems using force or pressure sensing means
-
- 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
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01516—Passenger detection systems using force or pressure sensing means
- B60R21/01526—Passenger detection systems using force or pressure sensing means using piezoelectric elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01122—Prevention of malfunction
- B60R2021/01184—Fault detection or diagnostic circuits
- B60R2021/01197—Warning devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Seats For Vehicles (AREA)
- Air Bags (AREA)
Abstract
Description
Die vorliegende Erfindung beschreibt eine Fahrzeugsitz-Sensorvorrichtung umfassend eine Sensoreinrichtung mit mindestens einer an einem Fahrzeugsitz anordenbaren drucksensitiven Schicht zur Erfassung eines Drucks auf die mindestens eine drucksensitiven Schicht und zur Bereitstellung eines entsprechenden Sensorsignals und eine Auswerteeinrichtung zur Bereitstellung einer Sitzbelegungsinformation in Abhängigkeit des Sensorsignals.The The present invention describes a vehicle seat sensor device comprising a sensor device with at least one on a vehicle seat disposable pressure-sensitive layer for detecting a pressure to the at least one pressure-sensitive layer and to provide a corresponding sensor signal and an evaluation device for providing seat occupancy information in dependence the sensor signal.
Häufig weisen Fahrzeuge Fahrerairbags und Beifahrerairbags auf, welche bei einem von der Airbag-Sensorik erfassten Aufprallereignis aktiviert werden. Vorzugsweise soll der Beifahrerairbag nur bei Anwesenheit einer Person auf dem Beifahrersitz aktiviert werden.Often point Vehicles driver airbags and passenger airbags, which at a be activated by the airbag sensor detected impact event. Preferably, the passenger airbag should only in the presence of a Person in the passenger seat to be activated.
Um
dies zu gewährleisten,
ist in der Druckschrift
Die Aufgabe der vorliegenden Erfindung besteht deshalb darin, die bisher bekannten Möglichkeiten zur Erfassung einer Belegung eines Fahrzeugsitzes zu verbessern.The Object of the present invention is therefore the hitherto known possibilities to improve occupancy of a vehicle seat.
Die Aufgabe wird erfindungsgemäß gelöst durch eine Fahrzeugsitz-Sensorvorrichtung umfassend eine Sensoreinrichtung mit mindestens einer an einem Fahrzeugsitz anordenbaren drucksensitiven Schicht zur Erfassung eines Drucks auf die mindestens eine drucksensitiven Schicht und zur Bereitstellung eines entsprechenden Sensorsignals und eine Auswerteeinrichtung zur Bereitstellung einer Sitzbelegungsinformation in Abhängigkeit des Sensorsignals, wobei die drucksensitive Schicht eine Piezofolie umfasst.The The object is achieved by a vehicle seat sensor device comprising a sensor device with at least one pressure-sensitive layer which can be arranged on a vehicle seat for detecting a pressure on the at least one pressure-sensitive Layer and to provide a corresponding sensor signal and an evaluation device for providing seat occupancy information dependent on the sensor signal, wherein the pressure-sensitive layer comprises a piezoelectric foil.
Dabei liegt der Erfindung die Erkenntnis zugrunde, dass durch die Verwendung einer Piezofolie Kosten bei der Montage einer erfindungsgemäßen Fahrzeugsitz-Sensorvorrichtung gespart werden können. Im Gegensatz zu den nach dem bisherigen Stand der Technik verwendeten piezoelektrischen Lacken benötigen Piezofolien auch keine unlackierten Metalloberflächen als Gegenelektroden, da diese Komponenten schon in die Piezofolie integriert sind. Mittels einer bereits vorhandenen doppelseitigen Klebefolie können die Piezofolien einfach und schnell auf die gewünschten Stellen, beispielsweise auf eine Sitzschale eines Fahrzeugsitzes, geklebt werden. Da Piezofolien eine häufige Verwendung finden, wie beispielsweise für Piezo-Tastaturen, können sie zur Herstellung einer erfindungsgemäßen Fahrzeugsitz-Sensorvorrichtung billig erworben werden.there the invention is based on the finding that through the use a piezo film costs in the assembly of a vehicle seat sensor device according to the invention can be saved. In contrast to the piezoelectric paints used in the prior art need Piezo films also no unpainted metal surfaces as counterelectrodes, since these components are already integrated in the piezo film. through an existing double - sided adhesive film, the Piezo films easily and quickly to the desired locations, for example on a seat of a vehicle seat, to be glued. Because piezo films a common one Can be used, such as for piezo keyboards, they can be used to make a Vehicle seat sensor device according to the invention be purchased cheaply.
Die
vorliegende Erfindung wird nun anhand der in der beigefügten
Der
in
Die
Piezofolien
Der
genaue Aufbau einer Piezofolie
Da
die Piezofolien
Die
Auswerteeinrichtung
Zusätzlich zu
den in der
Aus
diesem Grund lässt
sich eine erfindungsgemäße Fahrzeugsitz-Sensoreinrichtung
zur Aktivierung eines Airbags nutzen. Bei einem „nach vorne Fallen" der auf dem Fahrzeugsitz
Des
Weiteren können
die von der Auswerteeinrichtung
Über die
an dem Fahrzeugsitz
- 11
- Fahrzeugsitzvehicle seat
- 22
- Sitzschaleseat
- 33
- Rückenlehnebackrest
- 44
- Kopfstützeheadrest
- 5a bis 5e5a to 5e
- Piezofolienpiezofilms
- 6a bis 6e6a to 6e
- Spannungssignalevoltage signals
- 77
- Auswerteeinrichtungevaluation
- 88th
- Steuersignalcontrol signal
- 99
- Airbagsignalairbag signal
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005058973A DE102005058973A1 (en) | 2005-12-09 | 2005-12-09 | Sensor device for e.g. vehicle seat, has piezoelectric foils attached at head-rest of vehicle seat by using double-sided adhesive film, and providing sensor signals corresponding to pressure on foils |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005058973A DE102005058973A1 (en) | 2005-12-09 | 2005-12-09 | Sensor device for e.g. vehicle seat, has piezoelectric foils attached at head-rest of vehicle seat by using double-sided adhesive film, and providing sensor signals corresponding to pressure on foils |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005058973A1 true DE102005058973A1 (en) | 2007-06-14 |
Family
ID=38055946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005058973A Withdrawn DE102005058973A1 (en) | 2005-12-09 | 2005-12-09 | Sensor device for e.g. vehicle seat, has piezoelectric foils attached at head-rest of vehicle seat by using double-sided adhesive film, and providing sensor signals corresponding to pressure on foils |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005058973A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008003174A1 (en) * | 2007-02-15 | 2008-08-28 | Lear Corp., Southfield | Vehicle with a piezo-release spring arrangement |
DE112007002617B4 (en) | 2006-11-01 | 2019-01-03 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Systems for detecting living objects in a vehicle compartment |
DE102018205091A1 (en) * | 2018-04-05 | 2019-10-10 | Audi Ag | Method and system for detecting occupancy of a seat |
-
2005
- 2005-12-09 DE DE102005058973A patent/DE102005058973A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112007002617B4 (en) | 2006-11-01 | 2019-01-03 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Systems for detecting living objects in a vehicle compartment |
DE102008003174A1 (en) * | 2007-02-15 | 2008-08-28 | Lear Corp., Southfield | Vehicle with a piezo-release spring arrangement |
DE102008003174B4 (en) * | 2007-02-15 | 2010-09-02 | Lear Corp., Southfield | Vehicle with a piezo-release spring arrangement |
DE102018205091A1 (en) * | 2018-04-05 | 2019-10-10 | Audi Ag | Method and system for detecting occupancy of a seat |
DE102018205091B4 (en) * | 2018-04-05 | 2020-09-17 | Audi Ag | Method and system for detecting an occupancy of a seat |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20121211 |