WO2017164215A1 - Dispositif de commutation - Google Patents

Dispositif de commutation Download PDF

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Publication number
WO2017164215A1
WO2017164215A1 PCT/JP2017/011364 JP2017011364W WO2017164215A1 WO 2017164215 A1 WO2017164215 A1 WO 2017164215A1 JP 2017011364 W JP2017011364 W JP 2017011364W WO 2017164215 A1 WO2017164215 A1 WO 2017164215A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
unit
portable device
vehicle
antenna
Prior art date
Application number
PCT/JP2017/011364
Other languages
English (en)
Japanese (ja)
Inventor
裕介 浦野
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2017164215A1 publication Critical patent/WO2017164215A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Definitions

  • the present invention relates to a switch device that receives an operation for starting a vehicle equipment.
  • immobilizers are widely used as devices for preventing vehicle theft.
  • the immobilizer performs an authentication process between the portable device carried by the user and the switch device mounted on the vehicle, and grants engine start permission to the engine ECU (Electronic Control Unit) only when the authentication is successful. .
  • the ID code (identification information) stored in the portable device and the ID code stored in the switch device are collated, and if they match, it is determined that the authentication is successful. For this reason, a person who does not have a portable device whose ID code is registered in the immobilizer ECU in advance cannot start the engine of the vehicle, and the vehicle can be prevented from being stolen.
  • an LF (Low Frequency) antenna is provided inside the switch device so that the engine can be started even when the battery remaining in the portable device is low.
  • LF Low Frequency
  • the antenna device disclosed in Patent Document 1 includes a ferrite core and a coil in which a conductor is wound around the outer peripheral surface of the ferrite core.
  • the ferrite core By using the ferrite core, the number of components increases, and the entire device There is a problem that the weight of the resin increases. Further, when the ferrite core is made small, the magnetic field strength becomes small, and there arises a problem that the communication distance becomes short.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a switch device capable of reducing the number of components and reducing the weight of the entire device without shortening the communication distance.
  • a switch device includes a switch unit that receives an operation for starting vehicle equipment, a control board that performs control related to wireless communication with a portable device, and the switch unit and the control board.
  • a switch device that outputs a signal to be started, wherein the antenna includes a coil portion in which a plurality of annular conductive patterns that are partially missing are formed coaxially on the peripheral surface of the casing, and each conductive pattern And a connection wiring portion for connecting the two open ends to the control board.
  • the number of parts can be reduced without reducing the communication distance, and the weight of the entire apparatus can be reduced.
  • Embodiments of the present invention will be listed and described. Moreover, you may combine arbitrarily at least one part of embodiment described below.
  • a switch device accommodates a switch unit that receives an operation for starting vehicle equipment, a control board that performs control related to wireless communication with a portable device, and the switch unit and the control board.
  • a wireless communication for authenticating the portable device through an antenna connected to the control board, and starting the equipment when the switch unit accepts the operation after the portable device is authenticated A switching device that outputs a signal to be transmitted, wherein the antenna includes a coil portion in which a plurality of annular conductive patterns lacking a part are coaxially formed on a peripheral surface of the casing, and each conductive pattern includes A connection wiring portion for connecting two open end portions provided to the control board.
  • the antenna of the switch device is configured by the conductive pattern formed on the peripheral surface of the casing
  • the number of parts can be reduced and the weight of the apparatus can be reduced.
  • mode since several patterns are coaxially formed in the surrounding surface of a housing
  • the conventional coil in which the conductor is spirally wound since the two feeding points are formed at positions separated from each other, it is difficult to connect the feeding point to the control board. By connecting the open end portions of each conductive pattern formed in a specific manner, the feed point can be connected, and the feed point can be easily connected to the control board.
  • the casing is cylindrical, and the conductive pattern is formed on an outer peripheral surface or an inner peripheral surface of the casing.
  • a ferrite core is not necessary, and the number of parts can be reduced and the weight of the apparatus can be reduced.
  • the equipment is an engine or a driving battery system provided in the vehicle.
  • the present invention can be applied to an operation switch for starting a vehicle engine or a driving battery system.
  • FIG. 1 is a schematic diagram showing a schematic configuration of an engine start system according to the present embodiment.
  • the engine start system according to the present embodiment includes a switch device 10 that is provided in a vehicle and receives an operation related to start of the vehicle engine, and a portable device 50 that is carried by a user of the vehicle.
  • the switch device 10 includes an immobilizer unit 20 (see FIG. 4) in order to perform wireless communication with the portable device 50.
  • the switch device 10 is a cylindrical case 11 that accommodates a control board 30 (see FIG. 2) for the immobilizer unit 20, an annular bezel 12 that is attached to one end of the case 11, and a forward and backward movement with respect to the bezel 12. Is provided with a knob 13 for operating the switch.
  • An antenna 24 connected to the control board 30 is formed on the peripheral surface of the case 11.
  • the switch device 10 is configured to perform wireless communication with the portable device 50 by transmitting and receiving signals through the antenna 24.
  • the portable device 50 includes a battery 59 (see FIG. 5), and is configured to operate with electric power supplied from the battery 59. Further, when the remaining battery level of the portable device 50 is reduced, the portable device 50 is moved closer to the switch device 10 to receive radio waves transmitted from the antenna 24 of the switch device 10. It is comprised so that electric power can be induced to.
  • the immobilizer unit 20 of the switch device 10 performs authentication processing as to whether or not the mobile device is carried by a legitimate user by performing wireless communication with the mobile device 50.
  • the immobilizer unit 20 outputs a control signal instructing start of the vehicle engine.
  • FIG. 2 is a cross-sectional view showing an example of a schematic configuration of the switch device 10.
  • the switch device 10 according to the present embodiment includes the cylindrical case 11, the annular bezel 12 attached to one end of the case 11, and the switch operating knob 13.
  • the bezel 12 is a member for attaching the switch device 10 to the dashboard D of the vehicle, and supports the switch operating knob 13 on the inner peripheral surface thereof together with the case 11 so as to be able to advance and retreat.
  • An inner case 14 is provided at the bottom of the case 11, and a control board 30 for the immobilizer unit 20 is provided above the inner case 14.
  • buttons 31 and 32 are mounted on the surface of the control board 30, for example.
  • the knob 13 described above is pressed after authentication of the portable device 50, the switches 31 and 32 are activated.
  • the vehicle engine is configured to start.
  • an LED (Light Emitting Diode) 33 is mounted on the surface of the control board 30 and blinks when the vehicle engine is permitted to start, and lights when the vehicle engine is started. It is configured.
  • a light guide unit (not shown) is disposed above the LED 33, and the light emitted from the LED 33 irradiates the knob 13 through the light guide unit so that the operation status of the switch device 10 can be visually confirmed. Has been.
  • FIG. 3 is a schematic diagram illustrating the configuration of the antenna 24 of the immobilizer unit 20.
  • the antenna 24 includes a coil portion 241 formed on the outer peripheral surface of the case 11, and a forward wiring portion 242 ⁇ / b> A and a return wiring portion 242 ⁇ / b> B that connect the coil portion 241 and the control board 30.
  • the coil portion 241 has a configuration in which annular conductive patterns 241-1, 241-2,..., 241-n (n ⁇ 2) are partially arranged in a coaxial manner.
  • Each of the conductive patterns 241-1 to 241-n is formed on the outer peripheral surface of the case 11 by depositing metal by, for example, selective plating using a resist pattern.
  • Each of the conductive patterns 241-1 to 241-n has two open end portions, one open end portion is connected to the forward wiring portion 242A, and the other open end portion is the return wiring portion 242B. It is connected to the.
  • the forward wiring part 242A and the return wiring part 242B are formed on the outer peripheral surface of the case 11 by depositing metal by a selective plating method using a resist pattern. Is.
  • an electric current output from the control board 30 according to the transmission signal flows through the forward wiring section 242A, so that an electromagnetic wave corresponding to the transmission signal is transmitted from the coil section 241. It is configured as follows.
  • FIG. 4 is a block diagram showing the configuration of the control system of the immobilizer unit 20.
  • the immobilizer unit 20 includes a control unit 21, a storage unit 22, an outside communication unit 23, an in-vehicle communication unit 25, an input / output unit 26, and the like.
  • the control unit 21 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), and the like.
  • the CPU in the control unit 21 controls the operation of each hardware included in the immobilizer unit 20 by executing a control program stored in the ROM.
  • the storage unit 22 includes a nonvolatile memory such as an EEPROM (Electronically-Erasable-Programmable-Read-Only Memory), and stores, for example, authentication information necessary to authenticate the portable device 50.
  • EEPROM Electrically-Erasable-Programmable-Read-Only Memory
  • the outside-vehicle communication unit 23 is connected to the antenna 24 described above, and transmits a signal to the outside through the antenna 24 according to an instruction from the control unit 21 and receives a signal transmitted from the portable device 50.
  • the vehicle communication unit 23 includes a signal generation circuit that generates a signal having a frequency in a specific frequency band in accordance with a control signal output from the control unit 21, an amplification circuit that amplifies the generated signal, and the like. Is transmitted to the outside through the antenna 24.
  • the vehicle exterior communication unit 23 includes a reception circuit that receives a signal from the portable device 50 input through the antenna 24, and outputs a signal received by the reception circuit to the control unit 21.
  • the in-vehicle communication unit 25 includes, for example, a CAN communication interface (CAN: Controller Area Network), and is communicably connected to an ECU such as the engine ECU 40 via a CAN bus.
  • the in-vehicle communication unit 25 transmits and receives signals to and from the engine ECU 40 according to the CAN protocol.
  • the in-vehicle communication unit 25 sends a control signal for starting the vehicle engine to the CAN bus according to an instruction from the control unit 21.
  • the engine ECU 40 that has acquired the control signal from the CAN bus controls the engine starter 41 to start the vehicle engine.
  • the input / output unit 26 is an interface for connecting the switches 31 and 32 and the LED 33 described above. When a signal indicating that the switches 31 and 32 are operated is input, the input / output unit 26 outputs the signal to the control unit 21. Further, the input / output unit 26 outputs, to the LED 33, a control signal for blinking the LED 33, a control signal for turning on the LED, a control signal for turning off the LED 33, and the like based on an instruction from the control unit 21.
  • FIG. 5 is a block diagram showing the configuration of the control system of the portable device 50.
  • the portable device 50 includes, for example, a microcomputer 51, an engine start switch 52, an engine stop switch 53, an RF transmission unit 54, a transponder circuit unit 55, and the like, and is configured to operate with electric power supplied from the battery 59.
  • the microcomputer 51 includes a CPU, a ROM, and the like, and the CPU controls operations of the above-described hardware units by executing a control program stored in the ROM.
  • the engine start switch 52 is a switch that accepts an operation for starting the vehicle engine from a remote location of the vehicle.
  • the engine stop switch 53 is a switch that accepts an operation to stop the vehicle engine from a remote location of the vehicle.
  • the RF transmission unit 54 includes a signal generation circuit that generates a signal having an RF band frequency from the control signal output from the microcomputer 51, an amplification circuit that amplifies the generated signal, and the like. It transmits to the outside from the antenna 54a.
  • the RF transmission unit 54 wirelessly transmits an operation signal for starting the engine or an operation signal for stopping the engine according to an instruction from the microcomputer 51. It is possible.
  • the transponder circuit unit 55 is connected to the transponder antenna 55a, and performs transponder communication with the switch device 10 through the transponder antenna 55a.
  • transponder communication performed between the switch device 10 and the portable device 50 will be described.
  • the in-vehicle communication unit 23 of the immobilizer unit 20 periodically transmits a request signal for requesting the portable device 50 to transmit authentication information (ID code) according to an instruction from the control unit 21.
  • the portable device 50 can receive the request signal periodically transmitted from the immobilizer unit 20 from the transponder antenna 55a.
  • the transponder circuit unit 55 connected to the transponder antenna 55a generates and starts a power supply voltage according to the received request signal, and supplies the generated power supply voltage to the microcomputer 51. In addition, the transponder circuit unit 55 outputs the received request signal to the microcomputer 51.
  • the microcomputer 51 that has received the request signal extracts the ID code unique to the vehicle key from the built-in ROM and outputs it to the transponder circuit unit 55.
  • the transponder circuit unit 55 generates a response signal including the ID code acquired from the microcomputer 51 as a response signal to the request signal, and transmits the generated response signal to the outside from the transponder antenna 55a.
  • the immobilizer unit 20 receives the response signal transmitted from the portable device 50 by the antenna 24 and outputs the response signal to the control unit 21 through the external communication unit 23.
  • the control unit 21 that has acquired the response signal extracts an ID code unique to the vehicle key from the response signal, and when this matches the ID code stored in the storage unit 22, permits the vehicle engine to start. In order to notify the user that the start of the vehicle engine has been permitted, the control unit 21 outputs a control signal through the input / output unit 26, for example, thereby controlling the LED 33 to blink only for a certain period of time.
  • the control unit 21 passes through the in-vehicle communication unit 25.
  • a control signal for instructing the engine ECU 40 to start the engine is output.
  • the engine ECU 40 transmits a notification signal indicating that the vehicle engine has started to the immobilizer unit 20.
  • the control unit 21 of the immobilizer unit 20 receives a notification signal from the engine ECU 40 from the in-vehicle communication unit 25, the control unit 21 outputs a control signal through the input / output unit 26 to notify the user that the vehicle engine has started. For example, control for turning on the LED 33 is performed. The user can determine that the vehicle engine has started by confirming the light from the LED 33 irradiated to the knob 13 (or the light from the LED 33 leaking from the gap between the knob 13 and the bezel 12).
  • a series of operations for starting the vehicle engine can be performed by bringing the portable device 50 closer to the switch device 10 of the vehicle.
  • the antenna 24 on the switch device 10 side used in such transponder communication between the portable device 50 and the immobilizer unit 20 is composed of conductive patterns 241-1 to 241-1 formed on the outer peripheral surface of the case 11 by, for example, selective plating. Since it is composed of 241-n, a ferrite core is unnecessary, and the number of parts can be reduced and the weight of the apparatus can be reduced. Further, since the conductive patterns 241-1 to 241-n can be formed on the outer peripheral surface of the case 11 by selective plating, it is compared with a conventional coil in which a conductor is spirally wound on the peripheral surface of the ferrite core. Thus, the coil portion 241 can be easily formed.
  • the feed point can be connected. Easy to connect to.
  • the conductive patterns 241-1 to 201-n are formed on the outer peripheral surface of the case 11, but the coil portion 241 may be formed on the inner peripheral surface of the case 11. It is good also as a structure which forms the electroconductive pattern which comprises the coil part 241 in the outer peripheral surface of the knob 13 or the inner case 14.
  • FIG. 1 is a structure which forms the electroconductive pattern which comprises the coil part 241 in the outer peripheral surface of the knob 13 or the inner case 14.
  • the case 11 in which the coil portion 241 is formed has a cylindrical shape, but the shape of the case 11 does not have to be a cylindrical shape, and may be a cylindrical body having an arbitrary shape. .
  • the vehicle engine is started based on the transponder communication with the portable device 50.
  • the driving battery may be operated based on transponder communication with the machine 50.
  • Switch apparatus 11 Case 12 Bezel 13 Knob 14 Inner case 20 Immobilizer unit 21 Control part 22 Memory

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Details Of Aerials (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un dispositif de commutation qui permet de diminuer le nombre de composants et de réduire le poids d'un dispositif dans son ensemble sans réduire la distance de communication. Le dispositif de commutation est équipé d'une unité de commutation qui reçoit une opération de démarrage d'un accessoire de véhicule ; un substrat de commande qui effectue une commande liée à la communication sans fil avec un dispositif portable ; et un boîtier qui loge l'unité de commutation et le substrat de commande. Le dispositif de commutation effectue une communication sans fil pour authentifier le dispositif portable par l'intermédiaire d'une antenne connectée au substrat de commande et, lorsque l'unité de commutation, recevant une opération après l'authentification du dispositif portable, émet un signal pour démarrer l'accessoire. L'antenne est pourvue : d'une unité de bobine comprenant une pluralité de motifs électriquement conducteurs annulaires partiellement manquants formés coaxialement sur une surface circonférentielle du boîtier ; et une unité de câblage de connexion reliant deux extrémités ouvertes de chacun des motifs électriquement conducteurs au substrat de commande.
PCT/JP2017/011364 2016-03-25 2017-03-22 Dispositif de commutation WO2017164215A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016062341A JP2017175556A (ja) 2016-03-25 2016-03-25 スイッチ装置
JP2016-062341 2016-03-25

Publications (1)

Publication Number Publication Date
WO2017164215A1 true WO2017164215A1 (fr) 2017-09-28

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PCT/JP2017/011364 WO2017164215A1 (fr) 2016-03-25 2017-03-22 Dispositif de commutation

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JP (1) JP2017175556A (fr)
WO (1) WO2017164215A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101508U (ja) * 1982-12-27 1984-07-09 八木アンテナ株式会社 小型広帯域アンテナ装置
JP2015061099A (ja) * 2013-09-17 2015-03-30 アルプス電気株式会社 アンテナ装置
WO2016016964A1 (fr) * 2014-07-30 2016-02-04 ルネサスエレクトロニクス株式会社 Antenne cadre et dispositif de commande de communication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101508U (ja) * 1982-12-27 1984-07-09 八木アンテナ株式会社 小型広帯域アンテナ装置
JP2015061099A (ja) * 2013-09-17 2015-03-30 アルプス電気株式会社 アンテナ装置
WO2016016964A1 (fr) * 2014-07-30 2016-02-04 ルネサスエレクトロニクス株式会社 Antenne cadre et dispositif de commande de communication

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