DE102008049847A1 - Device for activating a horn for a motor vehicle - Google Patents
Device for activating a horn for a motor vehicle Download PDFInfo
- Publication number
- DE102008049847A1 DE102008049847A1 DE200810049847 DE102008049847A DE102008049847A1 DE 102008049847 A1 DE102008049847 A1 DE 102008049847A1 DE 200810049847 DE200810049847 DE 200810049847 DE 102008049847 A DE102008049847 A DE 102008049847A DE 102008049847 A1 DE102008049847 A1 DE 102008049847A1
- Authority
- DE
- Germany
- Prior art keywords
- cover
- horn
- processing means
- signal processing
- activating
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/001—Switches therefor
- B60Q5/003—Switches therefor mounted on the steering wheel
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Air Bags (AREA)
- Push-Button Switches (AREA)
Abstract
Eine Vorrichtung zum Aktivieren eines Signalhorns für ein Motorfahrzeug umfasst eine mit einem Lenkrad (11) gekoppelte, von dem Insassen zum Aktivieren des Signalhorns (20) zu drückende Abdeckung (13), ein mit der Abdeckung (13) gekoppeltes druckempfindliches Mittel (15) zum Erzeugen eines elektrischen Signals aufgrund von auf die Abdeckung (13) angewendetem Druck und ein Signalverarbeitungsmittel (18), das zum Aktivieren des Signalhorns (20) aufgrund Empfangens des elektrischen Signals von dem druckempfindlichen Mittel (15) eingerichtet ist. Das druckempfindliche Mittel (15) umfasst mindestens ein piezoelektrisches Element (15), und das Signalverarbeitungsmittel (18) ist zum Auswerten von zeitlichen Änderungen des elektrischen Signals und zum Aktivieren des Signalhorns (20) in Abhängigkeit von dem Ergebnis der Auswertung eingerichtet.An apparatus for activating a horn for a motor vehicle comprises a cover (13) coupled to a steering wheel (11) to be pressed by the occupant to activate the horn (20), a pressure-sensitive means (15) coupled to the cover (13) Generating an electrical signal due to pressure applied to the cover (13) and signal processing means (18) arranged to activate the horn (20) by receiving the electrical signal from the pressure sensitive means (15). The pressure sensitive means (15) comprises at least one piezoelectric element (15), and the signal processing means (18) is arranged to evaluate changes in the timing of the electrical signal and to activate the horn (20) in response to the result of the evaluation.
Description
Die Erfindung bezieht sich auf eine Vorrichtung zur Aktivierung eines Signalhorns für ein Motorfahrzeug nach dem Oberbegriff von Anspruch 1.The The invention relates to a device for activating a Bugle for a motor vehicle after the generic term of claim 1.
Die Aufgabe der Erfindung ist es, eine zuverlässige und kostengünstige Vorrichtung zur Aktivierung eines Signalhorns bereitzustellen, die unempfindlich gegen variablen internen Druck aufgrund von Alterung und thermischen Veränderungen ist.The The object of the invention is to provide a reliable and cost-effective To provide a device for activating a horn, the Insensitive to variable internal pressure due to aging and thermal changes.
Die Erfindung löst diese Aufgabe mit den Mitteln von Anspruch 1. Die Auswertung von Änderungen des elektrischen Signals über der Zeit, anstelle von absoluten Werten, erlaubt die Unterscheidung von schnellen Druckänderungen, die durch Signalhornaktivierung verursacht werden, von langsamem Druckänderungen, die durch Alterung und thermische Änderungen verursacht werden. Die Feststellung einer schnellen Druckänderung ist im Wesentlichen unabhängig von dem absoluten Wert des internen Drucks zum Zeitpunkt der Signalhornaktivierung. Gemäß der Er findung werden einen oder mehrere piezoelektrische Elemente als Druck sensitive Mittel verwendet, weil die von dem piezoelektrischen Element bereitgestellte Spannung proportional zu dem Betrag des angewendeten Drucks ist. Daher entsprechen Spannungsänderungen in der Signalspannung eines piezoelektrischen Elements, die einfach festgestellt werden können, direkt den Änderungen des auf die Abdeckung angewendeten Drucks.The Invention solves this problem by the means of claim 1. The evaluation of changes in the electrical signal via Time, instead of absolute values, allows the distinction of rapid pressure changes caused by horn activation caused by slow pressure changes caused by Aging and thermal changes are caused. The Establishing a rapid pressure change is essentially regardless of the absolute value of the internal pressure to Time of horn activation. According to the He will be one or more piezoelectric elements as Pressure sensitive means used because of the piezoelectric Element provided voltage proportional to the amount of applied pressure is. Therefore, voltage changes correspond in the signal voltage of a piezoelectric element that is simple can be determined directly to the changes the pressure applied to the cover.
Die Vorrichtung umfasst vorzugsweise mindestens ein elastisches Element, das zur Ausübung einer Vorspannkraft auf die Abdeckung angeordnet ist, um Vibrationen insbesondere in der Befestigung der Abdeckung zu vermeiden. Vorzugsweise ist das elastische Element zwischen der Abdeckung und dem piezoelektrischen Element gekoppelt. Dies erlaubt es, die elastische Konstante des elastischen Elements so hoch zu wählen, dass das elastische Element unter einer üblichen Druckkraft nicht signifikant komprimiert wird, um unerwünschte Verschiebung der Abdeckung zu verhindern. Vorzugsweise beträgt die elastische Konstante des elastischen Elements 30 N/mm oder mehr.The Device preferably comprises at least one elastic element, that for exerting a biasing force on the cover is arranged to vibrate especially in the attachment of the To avoid cover. Preferably, the elastic element coupled between the cover and the piezoelectric element. This allows the elastic constant of the elastic element so high that the elastic element under a usual Compressive force is not significantly compressed to unwanted To prevent displacement of the cover. Preferably the elastic constant of the elastic member is 30 N / mm or more.
Das drucksensitive Mittel umfasst vorzugsweise mindestens drei über die Abdeckung verteilte piezoelektrische Elemente, um eine zuverlässige Druckfeststellung unabhängig von dem genauen Ort, an dem die Abdeckung von dem Insassen gedrückt wird, zu gestatten.The Pressure-sensitive means preferably comprises at least three the cover distributed piezoelectric elements to ensure reliable pressure detection regardless of the exact location where the cover of the occupant is pressed to allow.
Vorzugsweise ist die Vorrichtung zum Erzeugen des elektrischen Signals ohne wesentliche Verschiebung der Abdeckung eingerichtet, was es gestattet, die Reaktionszeit auf ein Minimum zu reduzieren. Die Erfindung ist besonders wertvoll für verschiebungslose Vorrichtungen, wo auch kleine alterungsbedingte oder thermische Änderungen einen signifikanten Effekt auf den absoluten Betrag haben können.Preferably is the device for generating the electrical signal without essential Shifting the cover set up, which allows the reaction time to a minimum. The invention is particularly valuable for non-displacement devices, where even small age-related or thermal changes have a significant effect can have the absolute amount.
Die Erfindung wird im Folgenden anhand vorteilhafter Ausführungsformen unter Bezugnahme auf die beigefügten Figuren erläutert. Dabei zeigt:The Invention will be described below with reference to advantageous embodiments explained with reference to the accompanying figures. Showing:
Die
Befestigungsmittel
In
der in
Die
elastische Konstante des elastischen Elements
Die
piezoelektrischen Elemente
In
Die
Situation in
Vibrationen
in der Lenkradanordnung
Eine
andere Möglichkeit zum Kompensieren periodischer Änderungen
in der Signalspannung insbesondere aufgrund von Vibrationen ist
die Durchführung einer geeigneten Vorverarbeitung in dem
Signalverarbeitungsmittel
Das
Signalverarbeitungsmittel
Ein
Prüfmodus zum Prüfen der korrekten Montage einer
Schnappverbindung
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10100257 C2 [0002] DE 10100257 C2 [0002]
Claims (15)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810049847 DE102008049847B4 (en) | 2008-10-01 | 2008-10-01 | Device for activating a horn for a motor vehicle |
PCT/EP2009/006466 WO2010037462A1 (en) | 2008-10-01 | 2009-09-07 | A signal horn activation device for a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810049847 DE102008049847B4 (en) | 2008-10-01 | 2008-10-01 | Device for activating a horn for a motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102008049847A1 true DE102008049847A1 (en) | 2010-04-08 |
DE102008049847B4 DE102008049847B4 (en) | 2010-10-21 |
Family
ID=41320394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810049847 Expired - Fee Related DE102008049847B4 (en) | 2008-10-01 | 2008-10-01 | Device for activating a horn for a motor vehicle |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008049847B4 (en) |
WO (1) | WO2010037462A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015206367A1 (en) * | 2015-04-09 | 2016-10-13 | Takata AG | Steering wheel assembly for a steering wheel of a motor vehicle |
WO2020200570A1 (en) * | 2019-04-01 | 2020-10-08 | Preh Gmbh | Vehicle steering wheel system with an energy-saving electromechanical triggering device for triggering an acoustic output |
WO2020200572A1 (en) * | 2019-04-01 | 2020-10-08 | Preh Gmbh | Vehicle steering wheel system with an improved electromechanical triggering device for triggering an acoustic output |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120286970A1 (en) * | 2011-05-13 | 2012-11-15 | GM Global Technology Operations LLC | Variable tone horn system |
US9254786B2 (en) | 2012-11-05 | 2016-02-09 | Nissan North America, Inc. | Vehicle horn control assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2362204A1 (en) * | 1973-01-04 | 1974-07-11 | Philips Nv | MECHANICAL-ELECTRICAL CONVERTER |
DE29822832U1 (en) * | 1998-12-14 | 1999-02-25 | Petri Ag, 63743 Aschaffenburg | Steering wheel for motor vehicles |
DE10100257C2 (en) | 2001-01-05 | 2003-02-06 | Autoliv Dev | Method for zero point adjustment in a steering wheel provided with a pressure sensor-controlled triggering of the horn function |
KR100444236B1 (en) * | 1997-08-08 | 2004-10-14 | 삼성전자주식회사 | Method for registering/changing a telephone number of a local station in a wireless facsimile, specially related to registering or changing the telephone number in all portable devices by one-time registration performed through a fixing device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5423569A (en) * | 1991-07-08 | 1995-06-13 | United Technologies Automotive, Inc. | Electric signalling in a supplemental passenger restraint system |
US5303952A (en) * | 1992-12-23 | 1994-04-19 | United Technologies Automotive, Inc. | Electric signalling in a supplemental vehicle restraint system |
US5398962A (en) * | 1994-02-14 | 1995-03-21 | Force Imaging Technologies, Inc. | Horn activator for steering wheels with air bags |
US5489806A (en) * | 1994-05-11 | 1996-02-06 | Morton International, Inc. | Airbag horn switch with temperature compensation |
GB9619547D0 (en) * | 1996-09-19 | 1996-10-30 | Alliedsignal Deutschland Gmbh | Horn switch |
US6236309B1 (en) * | 1999-09-15 | 2001-05-22 | Delphi Technologies, Inc. | Horn switch assembly for an airbag module |
DE20302085U1 (en) * | 2003-02-11 | 2003-07-03 | Merlaku Kastriot | Motor vehicle horn control system with pressure sensor incorporated in horn switch |
-
2008
- 2008-10-01 DE DE200810049847 patent/DE102008049847B4/en not_active Expired - Fee Related
-
2009
- 2009-09-07 WO PCT/EP2009/006466 patent/WO2010037462A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2362204A1 (en) * | 1973-01-04 | 1974-07-11 | Philips Nv | MECHANICAL-ELECTRICAL CONVERTER |
KR100444236B1 (en) * | 1997-08-08 | 2004-10-14 | 삼성전자주식회사 | Method for registering/changing a telephone number of a local station in a wireless facsimile, specially related to registering or changing the telephone number in all portable devices by one-time registration performed through a fixing device |
DE29822832U1 (en) * | 1998-12-14 | 1999-02-25 | Petri Ag, 63743 Aschaffenburg | Steering wheel for motor vehicles |
DE10100257C2 (en) | 2001-01-05 | 2003-02-06 | Autoliv Dev | Method for zero point adjustment in a steering wheel provided with a pressure sensor-controlled triggering of the horn function |
Non-Patent Citations (1)
Title |
---|
KR 1997-037873 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015206367A1 (en) * | 2015-04-09 | 2016-10-13 | Takata AG | Steering wheel assembly for a steering wheel of a motor vehicle |
WO2020200570A1 (en) * | 2019-04-01 | 2020-10-08 | Preh Gmbh | Vehicle steering wheel system with an energy-saving electromechanical triggering device for triggering an acoustic output |
WO2020200572A1 (en) * | 2019-04-01 | 2020-10-08 | Preh Gmbh | Vehicle steering wheel system with an improved electromechanical triggering device for triggering an acoustic output |
US11919445B2 (en) | 2019-04-01 | 2024-03-05 | Preh Gmbh | Vehicle steering wheel system with an energy-saving electromechanical triggering device for triggering an acoustic output |
Also Published As
Publication number | Publication date |
---|---|
WO2010037462A1 (en) | 2010-04-08 |
DE102008049847B4 (en) | 2010-10-21 |
WO2010037462A8 (en) | 2010-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |