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WO1997012783A2 - Dispositif de transmission d'energie electrique et de donnees par induction - Google Patents

Dispositif de transmission d'energie electrique et de donnees par induction Download PDF

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Publication number
WO1997012783A2
WO1997012783A2 PCT/DE1996/001879 DE9601879W WO9712783A2 WO 1997012783 A2 WO1997012783 A2 WO 1997012783A2 DE 9601879 W DE9601879 W DE 9601879W WO 9712783 A2 WO9712783 A2 WO 9712783A2
Authority
WO
WIPO (PCT)
Prior art keywords
steering wheel
coil
cores
coil cores
coils
Prior art date
Application number
PCT/DE1996/001879
Other languages
German (de)
English (en)
Other versions
WO1997012783A3 (fr
Inventor
Helmut Bonn
Original Assignee
Petri Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7775005&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1997012783(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Petri Ag filed Critical Petri Ag
Publication of WO1997012783A2 publication Critical patent/WO1997012783A2/fr
Publication of WO1997012783A3 publication Critical patent/WO1997012783A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/04—Arrangements for transmitting signals characterised by the use of a wireless electrical link using magnetically coupled devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/18—Rotary transformers

Definitions

  • the invention relates to a device for the inductive transmission of electrical energy and data according to the preamble of claim 1.
  • EP 0 183 580 discloses a device for the contactless transmission of information from stationary vehicle assemblies to assemblies which are provided on the steering wheel.
  • an annular primary coil which is encased by a shell core
  • a ring-shaped secondary coil which is encased by a shell core and rotatable with the steering wheel, are arranged coaxially to the longitudinal axis on the steering wheel side, with an air gap between the shell cores.
  • the disadvantage of this arrangement is that the air gap must not be changed to ensure the safe and interference-free transmission of pulses. Special mechanical elements are therefore provided to keep the air gap constant.
  • a capacitor is arranged coaxially with a two-part transformer. This consists of conductor tracks, which are stationary on the vehicle, surround the steering column, and conductor tracks, which are opposite to the steering wheel, surround the steering shaft and are connected to the steering shaft in a rotationally fixed manner, with an air gap therebetween.
  • the data from the steering wheel to the vehicle side or from the vehicle side to the steering wheel are sent via the capacitor, which is independent of the inductive energy transmission.
  • the capacitor is connected to similar control and evaluation circuits on the vehicle and steering wheel side.
  • the object of the invention is to enable interference-free inductive transmission of energy and data between the steering wheel and stationary assemblies of a motor vehicle without additional electronics. According to the invention this is achieved in accordance with the characterizing features of claim 1.
  • each circuit preferably having a stationary primary and one with the Steering wheel connected secondary power transmission element.
  • the device Because of the separate electrical circuits, the device has little susceptibility to faults without additional energy storage and without additional electronics. If necessary, this can be further reduced by operating each circuit at a different frequency.
  • two coil cores with coils are provided in the steering wheel and in the steering column cladding.
  • One circuit serves for the direct transmission of the ignition current from a sensor to the airbag of the motor vehicle and the other circuit for the direct transmission of the control current from the steering wheel to the horn.
  • the steering column cover is adjustable with the steering column switch relative to the steering wheel.
  • the coil cores can be manufactured with a greater tolerance and the required gap width between the coil cores can then be easily adjusted. It is furthermore expedient for the coil cores to overlap axially and radially. This prevents inductive radiation.
  • the coils for power transmission preferably have ferrite cores and the coils for data transmission cores made of electrical or dynamo sheets.
  • An expedient embodiment provides that the turn signal switch receptacle and the casing consist of one part and that the turn signal switches and the inductive transmission system are mounted in the turn signal receptacle.
  • a preferred embodiment further provides that the coil cores have a U-shaped cross-section, that plastic bodies with wound coils are inserted into the coil cores, the coil cores on the steering column side and the coil cores on the steering wheel side with the open side of the U- Form opposite.
  • the plastic bodies also preferably have a U-shaped cross section, the open side of the U-shape pointing outwards.
  • each coil is first wound onto the plastic body outside the coil core. This wound plastic body is then inserted into the coil core.
  • 1 shows a perspective view of the coil arrangement according to the invention
  • 2 shows the assignment of the coil cores to the coils on the steering column side
  • 2b shows a coil core for the primary side of the horn circle
  • FIG. 3 shows the coil arrangement according to FIG. 1 in the installed state
  • FIG. 1 shows a switch module 1 which is arranged on a steering column cover 2 which is fixedly connected to a motor vehicle. This can be fastened by means of a clamp 2a and its position can thus be adjusted.
  • the coil system shown in FIG. 1 is provided for the safe transmission of the ignition current from the central electronics in the vehicle to the airbag in the steering wheel and the control currents for the horn, cruise control, radio functions, etc. from the steering wheel to the central electronics.
  • This comprises separate coil assemblies for an airbag circuit 4 and a horn circuit 5 (FIG. 4).
  • the airbag circuit 4 has a primary side 6 and a secondary side 7 and the horn circuit also has a primary side 8 and a secondary side 9. Each primary or secondary side has plug contacts 10, 11, 12, 13, via which they are connected to the respective assembly.
  • a coil core 14 is provided for the primary side 6 of the airbag circuit, which has a U-shaped cross section. This cross section can be seen from FIG. 2a.
  • a coil 15 is embedded, which is wound on a plastic body 15a before insertion.
  • a coil core 16 is provided for the primary side 8 of the horn circle, which also has a U-shaped cross section.
  • An associated coil 17 is wound onto a plastic body 17a before being introduced into the coil core 16 (FIG. 2b), and this pre-wound coil is then introduced into the coil core 16.
  • both coil cores have a U-shape which is open at the top.
  • the side legs of the U cross section are set back at the edge relative to the center.
  • the secondary side 7 of the airbag circuit 4 is fastened with a U-shaped coil core 18 and a plastic body 19a embedded therein with a coil 19.
  • the coil core 18 is surrounded by a U-shaped coil core 20 of larger diameter, which has an embedded plastic body 21a with a coil 21 of the secondary side 9 of the horn circle.
  • Both coil cores have a U-shape which is open at the bottom.
  • the side legs of the U cross section are set back in the middle with respect to the edge.
  • the coil core 14 on the primary side and the coil core 18 on the secondary side overlap both in the axial and in the radial direction. This prevents inductive radiation and radiation.
  • the toroidal transformer for the airbag circuit with the primary side 6 and the secondary side 7 establishes the connection between an airbag control unit 22 and an airbag release 23.
  • the data from the airbag control unit for airbag deployment is transmitted at a frequency of 1 kHz.
  • the toroidal transformer for the horn circuit with the primary side 8 and the secondary side 9 establishes the connection between a horn button 24 in the secondary circuit and a horn 25 with an AC voltage source 26.
  • This circuit works at a frequency of 2 kHz.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Steering Controls (AREA)
  • Air Bags (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

Ce dispositif sert à transmettre par induction de l'énergie et des données entre le côté stationnaire et le côté volant de direction d'un véhicule, notamment d'un véhicule à moteur. Le dispositif comprend plusieurs circuits inductifs séparés. Chaque circuit comprend un élément primaire stationnaire et un élément secondaire de transmission de courant relié au volant de direction. Un mode préféré de réalisation se caractérise en ce que les noyaux d'inductance (14, 16, 18, 20) ont une section transversale en U, en ce que des corps en plastique (15a, 17a, 19a, 21a) avec des bobines enroulées (15, 17, 19, 21) sont insérés dans les noyaux d'inductance. Les noyaux d'inductance (14, 16) côté colonne de direction sont situés face aux noyaux d'inductance (18, 20) côté volant de direction de sorte que leurs ouvertures en U soient en vis-à-vis. Les circuits séparés réduisent la sensibilité aux parasites du dispositif sans qu'il soit nécessaire d'utiliser un accumulateur supplémentaire d'énergie ni un équipement électronique supplémentaire.
PCT/DE1996/001879 1995-10-06 1996-09-24 Dispositif de transmission d'energie electrique et de donnees par induction WO1997012783A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19538528A DE19538528C2 (de) 1995-10-06 1995-10-06 Vorrichtung zur induktiven Übertragung elektrischer Energie und von Daten
DE19538528.4 1995-10-06

Publications (2)

Publication Number Publication Date
WO1997012783A2 true WO1997012783A2 (fr) 1997-04-10
WO1997012783A3 WO1997012783A3 (fr) 1997-06-12

Family

ID=7775005

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/001879 WO1997012783A2 (fr) 1995-10-06 1996-09-24 Dispositif de transmission d'energie electrique et de donnees par induction

Country Status (2)

Country Link
DE (1) DE19538528C2 (fr)
WO (1) WO1997012783A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6169339B1 (en) 1999-03-31 2001-01-02 Methode Electronics, Inc. Rotating signal transducer
US7135981B1 (en) 2004-10-12 2006-11-14 Teleflex Megatech Inc. Fuel level variation detector for marine vehicle
US7405540B2 (en) 2003-10-20 2008-07-29 Teleflex Megatech, Inc. Secondary power supply system and method of activating subsystems from a vehicle steering wheel
US7525449B1 (en) 2003-10-20 2009-04-28 Teleflex Megatech, Inc. Status light for switch on boat steering wheel
US7672759B1 (en) 2004-02-24 2010-03-02 Teleflex Megatech, Inc. Communication with a steering wheel switch

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001878A1 (fr) * 1997-07-03 1999-01-14 The Furukawa Electric Co., Ltd. Transformateur dissocie et controleur d'emission equipe de ce transformateur dissocie
JP2000150275A (ja) * 1998-11-12 2000-05-30 Alps Electric Co Ltd 非接触式信号伝送装置
US6268785B1 (en) * 1998-12-22 2001-07-31 Raytheon Company Apparatus and method for transferring energy across a connectorless interface
WO2001025056A1 (fr) * 1999-10-01 2001-04-12 Kiekert Aktiengesellschaft Dispositif de transmission de donnees et d'energie sans fil
DE10046659A1 (de) 2000-09-20 2002-04-04 Bosch Gmbh Robert Induktiver Übertrager
DE10103280B4 (de) * 2001-01-25 2005-07-07 Robert Bosch Gmbh Anordnung zum kontaktlosen Übertragung von elektrischer Energie zwischen gegeneinander linear bewegbaren Fahrzeugteilen
DE10131905B4 (de) 2001-07-04 2005-05-19 Wampfler Aktiengesellschaft Vorrichtung zur induktiven Übertragung elektrischer Energie
DE10200488B4 (de) * 2002-01-09 2004-02-05 Hema Elektronik-Fertigungs- Und Vertriebs Gmbh Intelligenter Werkzeugkopf für den Einsatz in Werkzeugmaschinen
DE10209416B4 (de) * 2002-03-05 2006-10-19 Siemens Ag Vorrichtung zur berührungsfreien Hochfrequenzübertragung
DE10209511A1 (de) * 2002-03-05 2003-10-02 Siemens Ag Vorrichtung zur berührungsfreien Hochfrequenzübertragung
DE102005011197B4 (de) 2005-03-09 2013-03-07 Komet Group Gmbh Drehübertrager und damit ausgerüstetes Maschinengestell
DE102008010018A1 (de) * 2008-02-20 2009-08-27 LFK Lenkflugkörpersysteme GmbH Richtkopf mit berührungsloser Energie- und Datenübertragung
DE102008000644A1 (de) * 2008-03-13 2009-09-17 Zf Friedrichshafen Ag Drehübertragungsanordnung
EP3552886A1 (fr) * 2018-04-09 2019-10-16 IDT Europe GmbH Interface de capteur sans fil pour volant de direction
DE102023206577A1 (de) * 2023-07-11 2025-01-16 Zf Friedrichshafen Ag Reduktion von Kupferverlusten in induktiven Erregereinrichtungen durch gezielte Flussführung

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JPS58142509A (ja) * 1982-02-19 1983-08-24 Hitachi Ltd 回転部分を有する自動車部品への電源供給装置
DE3427588A1 (de) * 1984-07-26 1986-02-06 Franz Kirsten Elektrotechnische Spezialfabrik, 6530 Bingen Einrichtung zur stromuebertragung zwischen einem feststehenden und einem verdrehbaren teil
FR2572845B1 (fr) * 1984-11-06 1987-03-20 Peugeot Aciers Et Outillage Dispositif de transmission, par couplage magnetique, d'informations issues d'organes de commande montes sur un volant de direction a un organe solidaire d'un vehicule
DE3905422A1 (de) * 1988-04-15 1989-10-26 Daimler Benz Ag Vorrichtung zur induktiven abfrage und energieversorgung eines isolierten stromkreises mit elektrischem verbraucher
DE3812628C1 (en) * 1988-04-15 1989-04-27 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Device for supplying power in a contactless fashion to, and interrogating, an electric component or triggering means in a motor vehicle
GB2218231A (en) * 1988-05-05 1989-11-08 Plessey Co Plc Electrical control systems
DE4120650A1 (de) * 1991-06-22 1992-12-24 Kolbenschmidt Ag Vorrichtung zur uebertragung von elektrischer energie und daten in kraftfahrzeugen
EP0616924B1 (fr) * 1993-03-24 1996-12-04 Siemens Aktiengesellschaft Dispositif et procédé pour la transmission sous fil de données et d'énergie
DE4404816B4 (de) * 1994-02-16 2005-08-25 Siemens Restraint Systems Gmbh Vorrichtung zur Übertragung von Energie und Daten zwischen der Fahrzeug- und der Lenkradseite von Kraftfahrzeugen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6169339B1 (en) 1999-03-31 2001-01-02 Methode Electronics, Inc. Rotating signal transducer
US7405540B2 (en) 2003-10-20 2008-07-29 Teleflex Megatech, Inc. Secondary power supply system and method of activating subsystems from a vehicle steering wheel
US7525449B1 (en) 2003-10-20 2009-04-28 Teleflex Megatech, Inc. Status light for switch on boat steering wheel
US7672759B1 (en) 2004-02-24 2010-03-02 Teleflex Megatech, Inc. Communication with a steering wheel switch
US7135981B1 (en) 2004-10-12 2006-11-14 Teleflex Megatech Inc. Fuel level variation detector for marine vehicle

Also Published As

Publication number Publication date
WO1997012783A3 (fr) 1997-06-12
DE19538528A1 (de) 1997-04-10
DE19538528C2 (de) 1998-07-23

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