EP0524424B1 - Procédé de commande d'un émetteur portable destiné à actionner les fonctions d'un véhicule - Google Patents

Procédé de commande d'un émetteur portable destiné à actionner les fonctions d'un véhicule Download PDF

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Publication number
EP0524424B1
EP0524424B1 EP92110088A EP92110088A EP0524424B1 EP 0524424 B1 EP0524424 B1 EP 0524424B1 EP 92110088 A EP92110088 A EP 92110088A EP 92110088 A EP92110088 A EP 92110088A EP 0524424 B1 EP0524424 B1 EP 0524424B1
Authority
EP
European Patent Office
Prior art keywords
transmitter
hand
controlling
received
vehicle
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.)
Expired - Lifetime
Application number
EP92110088A
Other languages
German (de)
English (en)
Other versions
EP0524424A1 (fr
Inventor
Martin Dipl.-Ing. Lindmayer
Jürgen Dipl.-Ing. Moczygemba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Mercedes Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz 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
Application filed by Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of EP0524424A1 publication Critical patent/EP0524424A1/fr
Application granted granted Critical
Publication of EP0524424B1 publication Critical patent/EP0524424B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G07C2009/00261—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier having more than one function
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00785—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by light

Definitions

  • the invention relates to a method for operating a handheld transmitter for controlling vehicle functions with the features of the preamble of patent claim 1.
  • a method with these features can be derived from the mode of operation of an infrared hand-held transmitter supplied for remote control of functions in vehicles manufactured by the applicant.
  • the output signals that can be emitted by this hand transmitter essentially consist of a code component and a maintenance component.
  • a code portion a relatively short coded message is transmitted from the transmitter to a vehicle-mounted receiver in a known manner, which enables z. B. to activate a central locking in the unlocking or locking direction or even from a greater distance from the vehicle.
  • the maintenance component which in the vehicles equipped with a convenience lock also enables the closing of windows and the sunroof that are still open after leaving the vehicle, is only emitted for as long as the transmit button on the handheld transmitter is continuously longer than a predetermined period of time is recorded immediately after the radiation of the locking code signal, so only for the desired duration the window or sunroof closing movement.
  • the latter only sets after a certain period of time, e.g. B. 0.25 sec after the start or after receiving the maintenance signal on the vehicle, as well as the need to hold the transmit button already represents a security measure.
  • the maintenance component consists of repeated clock pulses, which are transmitted at constant intervals with the intensity or signal level unchanged compared to the code signal.
  • the output power of the handheld transmitter and its range thus remain the same (see Fig. 2).
  • the characterizing features of method claim 1 indicate an inventive solution to this problem.
  • this solution it is e.g. B. irrelevant whether the output signal for controlling the convenience closing drives z. B. is activated via a separate key of the handheld transmitter following a previous actuation of a code signal transmission key, or whether only a single transmission key is provided.
  • the receivable output power can be determined simply by selecting the button.
  • a hand-held transmitter is known (DE 38 06 130 A1), the output power of which is variable depending on the strength of the ambient light.
  • One possibility is to reduce the electrical output power of a signal source in one stage by connecting a resistor - which forms an electrical folder.
  • Another possibility is to provide two signal sources next to each other in the same handheld transmitter, one of which can emit unfiltered or unimpaired at full power, the other can only emit through a filter upstream or with reduced power.
  • Another possibility with two signal sources can be realized by activating them together for a long range and switching off one of them to reduce the range.
  • dialog control of the receivable output power of the hand-held transmitter is possible as a function of a switching signal with a long range that is transmitted by the vehicle even after complete reception of a suitable code signal and can be received and evaluated in the hand-held transmitter.
  • suitable variable signal filtering could also be provided, e.g. B. by switching on a suitable depending on the signal carrier type (infrared, ultrasound, radio) selected Filters in front of the signal output during the emission of the output signals controlling the drives.
  • signal carrier type infrared, ultrasound, radio
  • the receivable output transmission power p of a hand-held transmitter - which corresponds to its range - is plotted in a highly schematic manner over a time axis t when a transmit button is pressed continuously.
  • the signal sequence begins when the send button is pressed.
  • the abbreviations ZV / EDW and KB stand for locking devices or control elements of a central locking system / burglary-theft alarm system or for drives for comfort controls.
  • FIG. 1 shows that, according to the method according to the invention, with a constant waveform with respect to the pulse train, the amplitude of the pulses of the maintenance component A is significantly, approximately 50%, less than the amplitude of the pulses of the code component C.
  • FIG. 3 shows a partially cut-open view of a hand transmitter 1 for infrared rays, which can be activated manually using a single transmission button 2.
  • a hand transmitter 1 for infrared rays, which can be activated manually using a single transmission button 2.
  • it includes an automatically controllable switching element 3 with a changeover contact 4 and a first infrared transmitter diode 5 and a second infrared transmit diode 6 as a signal source, which can be controlled alternately via the changeover contact 4.
  • the first infrared transmitter diode 5 is arranged behind a transparent cover 7 in the housing of the handheld transmitter 1, which does not significantly reduce or attenuate the transmit (light) power that can be emitted by the transmitter diode 5 and can be received by a downstream receiver.
  • the second infrared transmitter diode 6 is arranged behind a cover 8 which is also transparent but absorbs part of the transmission power. Therefore, even with identical design and power consumption of the two signal sources or transmitter diodes 5 and 6, the transmit power emitted by the latter can only be received in a weakened manner by a downstream receiver.
  • the automatically controllable switching element 3 will switch its changeover contact to the transmitter diode 6 if and only after the radiation of the code signal or portion marked in FIG. 1, the power / range-reduced maintenance signal is to be emitted.
  • This process can be controlled by the program sequence of the hand-held transmitter on the software side or purely time-dependent via a timer (timer, clock), because with the present transmitter type the time extension of the code signal to be emitted and thus the time period between the start of the transmission button 2 and the time of the range switch is always constant.
  • a timer timer, clock
  • an automatically controllable switching element 3 ' accordinging to FIG. 4 , which can connect a series resistor 8' to a single transmitter diode 5 'of a hand-held transmitter, not shown, which then limits the power consumption of the transmitter diode 5' compared to the basic position shown and thus also to be regarded as a filter for the receivable output power.
  • FIG. 5 an arrangement is sketched in a greatly simplified manner in FIG. 5 , in which an automatically controllable switching element 3 ′′ of a hand-held transmitter 1 ′ - as shown in FIGS. 3 and 4 - can be activated in dialogue with a vehicle-mounted transmitter with a long range.
  • a vehicle F is only partially indicated here as a dashed frame.
  • a vehicle-mounted receiver 9 with a downstream control device 10 and a transmitter 11 controllable by the latter are arranged therein.
  • the control unit 10 also masters the vehicle functions ZV / EDW and KB, which have already been mentioned several times, as indicated schematically here by function blocks.
  • a hand-held transmitter 1 'indicated to the left of the vehicle in turn comprises a signal source 5''whose receivable output power in a suitable manner - as shown above - can be changed via the automatically controllable switching element 3 ′′ in the sense of the sequence in FIG. 1.
  • a receiver 12 is now also provided in the hand transmitter 1 ′, which receives the signals that can be emitted by the transmitter 11 fixed in the vehicle.
  • both the handheld transmitter 1 'and the transmitter-receiver combination in the vehicle F have a transponder function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
  • Selective Calling Equipment (AREA)
  • Transmitters (AREA)
  • Optical Communication System (AREA)

Claims (7)

  1. Procédé de mise en oeuvre d'un émetteur manuel (1, 1') de commande de fonctions d'un véhicule, l'émetteur manuel pouvant émettre des signaux de sortie (A, C) de commande aussi bien de dispositifs de verrouillage que de dispositifs moteurs, en particulier de dispositifs moteurs de toit ouvrant et de fenêtres, de fermeture d'ouvertures du véhicule,
       caractérisé
       en ce que les signaux de sortie (A) de commande des dispositifs moteurs sont émis avec une puissance de sortie et une portée inférieures à celles des signaux de sortie (C) de commande des dispositifs de verrouillage.
  2. Procédé selon la revendication 1, dans lequel l'émetteur manuel émet, en cas d'actionnement persistant d'une touche d'émission, des signaux de sortie continus avec une fraction de tête de code de longueur limitée dans le temps pour la commande des dispositifs de verrouillage et une fraction de maintien qui fait suite pour la commande des dispositifs moteurs,
       caractérisé
       en ce que la puissance de sortie recevable de l'émetteur manuel est réduite automatiquement par des organes de commutation à la fin de l'émission de la fraction de code.
  3. Procédé selon la revendication 2,
       caractérisé
       en ce que l'amplitude des impulsions de la fraction de maintien est réduite par rapport à l'amplitude des impulsions de la fraction de code.
  4. Procédé selon la revendication 1 ou 2,
       caractérisé
       en ce qu'à la fin de l'émission de la fraction de code, la consommation d'énergie d'une source de signaux (5') et donc sa puissance de sortie pouvant être reçue subissent une diminution.
  5. Procédé selon la revendication 2 ou 4,
       caractérisé
       en ce qu'à la fin de l'émission de la fraction de code, un organe de commutation commandé automatiquement (3 ; 3' ; 3'') commute d'une première source de signaux (5) de l'émetteur manuel (1) sur une seconde source de signaux (6) de l'émetteur manuel pour la diminution de la puissance de sortie pouvant être reçue.
  6. Procédé selon la revendication 2 ou 4 ou 5,
       caractérisé
       en ce que la puissance de sortie de l'émetteur manuel qui peut être reçue est commandée en dialogue avec un émetteur monté en position fixe dans le véhicule, l'émetteur monté en position fixe dans le véhicule émettant à la fin de la réception par le véhicule des signaux de sortie de commande des dispositifs de verrouillage un signal de commutation à grande portée pouvant être reçu par l'émetteur manuel équipé d'un récepteur et pouvant être analysé par un dispositif de commutation intégré à l'émetteur et commandé automatiquement pour la réduction temporaire de la puissance d'émission de l'émetteur manuel qui peut être reçue.
  7. Procédé selon la revendication 1 ou 2,
       caractérisé
       en ce que, pendant l'émission des signaux de sortie de commande des dispositifs moteurs, un filtre convenable sélectionné en fonction du type de vecteur des signaux (infrarouges, ultrasons, radiophonie) est branché.
EP92110088A 1991-07-20 1992-06-16 Procédé de commande d'un émetteur portable destiné à actionner les fonctions d'un véhicule Expired - Lifetime EP0524424B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4124181 1991-07-20
DE4124181A DE4124181C2 (de) 1991-07-20 1991-07-20 Verfahren zum Betreiben eines Handsenders zum Steuern von Fahrzeugfunktionen

Publications (2)

Publication Number Publication Date
EP0524424A1 EP0524424A1 (fr) 1993-01-27
EP0524424B1 true EP0524424B1 (fr) 1995-12-27

Family

ID=6436684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110088A Expired - Lifetime EP0524424B1 (fr) 1991-07-20 1992-06-16 Procédé de commande d'un émetteur portable destiné à actionner les fonctions d'un véhicule

Country Status (4)

Country Link
US (1) US5355525A (fr)
EP (1) EP0524424B1 (fr)
JP (1) JPH05206874A (fr)
DE (2) DE4124181C2 (fr)

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Also Published As

Publication number Publication date
JPH05206874A (ja) 1993-08-13
EP0524424A1 (fr) 1993-01-27
DE4124181C2 (de) 1997-01-23
DE59204810D1 (de) 1996-02-08
US5355525A (en) 1994-10-11
DE4124181A1 (de) 1993-01-21

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