EP0833026A1 - RF remote controls with dual functional ranges for a motor vehicle - Google Patents

RF remote controls with dual functional ranges for a motor vehicle Download PDF

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Publication number
EP0833026A1
EP0833026A1 EP97402221A EP97402221A EP0833026A1 EP 0833026 A1 EP0833026 A1 EP 0833026A1 EP 97402221 A EP97402221 A EP 97402221A EP 97402221 A EP97402221 A EP 97402221A EP 0833026 A1 EP0833026 A1 EP 0833026A1
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EP
European Patent Office
Prior art keywords
function
vehicle
threshold
parts
code
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
Application number
EP97402221A
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German (de)
French (fr)
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EP0833026B1 (en
Inventor
Gilles Courjault
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.)
Valeo Comfort and Driving Assistance SAS
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Valeo Electronique SA
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Publication of EP0833026A1 publication Critical patent/EP0833026A1/en
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    • 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
    • G07C2009/00198—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 limited data transmission ranges
    • 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
    • G07C2009/00793—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 Hertzian waves

Definitions

  • the present invention relates to methods and to dual radio remote control systems scope for motor vehicle.
  • Such a remote control allows for example trigger the vehicle's ignition at medium distance ceiling light, to allow the driver to find your vehicle more easily, unlocking doors being ordered only when the remote control operator is very close to his vehicle.
  • one constitutes a zone close together (for example, up to distances of 4 m per vehicle) in which the locking / unlocking the vehicle doors can be ordered
  • the other is a more remote area (for example, for distances to the vehicle included between 4 and 30 m) in which other functions of the vehicle can be activated including functions intended to facilitate the location of the vehicle by the user.
  • the transmitter of the remote control transmits to a receiving unit on the carries a signal that incorporates an encrypted message and a function code issued at nominal power, which is the even regardless of the function ordered.
  • the unit of reception decides according to the power level that it receives and therefore the distance between the transmitter and the vehicle if it authorizes one or the other of the actions carried by the function code.
  • the range limit varies in particular depending on the environment near the vehicle (presence of other vehicles, trucks, buildings, hangars, structures soil, ...), as well as depending on how the user holds the case of his remote control when it activates (case of the ignition key held vertically or horizontally, etc.).
  • the transmitter has different actuation buttons for the two functions to be controlled.
  • Function codes transmitted are of different power depending on the button operated.
  • the code corresponding to the localization aid function is issued to the power nominal, while the code corresponding to the function lock / unlock is issued at a power scaled down.
  • the receiver receives or does not receive the transmitted code depending on the distance between it and the transmitter.
  • the type of action to be ordered is therefore decided at the level of the transmitter.
  • An object of the invention is to overcome these different disadvantages.
  • the transmitted signal has a function code in at least two parts of levels of different power, compared to reception the power levels of these different parties to at minus a zone definition threshold greater than the threshold of reception, in that the locking / unlocking the doors if the power levels of these two parts are above this threshold of area definition and in that we order at least one vehicle location assistance function if power levels of these two parts are lower said area definition threshold while being higher at the reception threshold, and in that in other cases the unlocking the doors and the function (s) assistance in locating the vehicle is not ordered.
  • the message sent carries a code vehicle identification and a function code door lock / unlock control and locking / unlocking the doors is not ordered only when this identification code is verified.
  • This identification code is preferably carried by that of the two parts of the message which is transmitted with the highest power.
  • the message sent carries a code of the localization aid (s) and this (or these) function (s) is not (or is not) controlled (s) only when the vehicle identification code and function code are checked.
  • the invention also relates to a system for dual-range radio frequency remote control for implementation of this process.
  • the receiver of such a system includes means for verifying a code on the message vehicle identification and a function code door lock / unlock control and / or an identification code of the function (s) localization assistance; in particular, it includes means for verifying the vehicle identification code and the function code of the order of the locking / unlocking of the doors, on that of the two parts of the function code which is issued with the most strong power.
  • the invention further relates to a receiver for a such remote control system.
  • the function code of the message sent by the transmitter consists of at least two separate parts which correspond to different function codes, as well as different power levels.
  • a first part I is emitted at a power nominal. This first part I is followed by a second part II which is transmitted at a reduced power.
  • the receiver manages the signal it receives from the next way.
  • the power levels of the two parts I and II of the function code are compared to a zone threshold higher than the reception threshold.
  • the receiver If the power levels of these two parts are both above the zone threshold, the receiver considers that the operator is in the immediate vicinity of the vehicle and authorizes the actuation for example of the locking / unlocking the doors (near area - action 1).
  • the two parts of the function code are both below the zone threshold he considers that the operator is in an area too far away for we can authorize the unlocking of the doors and is close enough that we can allow functions for locking and / or locating of the vehicle: lighting of the dome light, operation of the horn, lighting of the flashing lights (area called remote area in figure 3 - action 2).
  • the receiver If finally these two power levels are found on either side of the zone threshold, the receiver considers that the operator is in an intermediate zone between the two previous areas. No function is ordered, except possibly the function locking.
  • the circles which have been represented give the distance in meters to the center of the vehicle.
  • the lock / unlocking is associated with receiving signals from strong power emitted at short range, while the location function, and possibly the function lock, are associated with reception low power signals transmitted over long distances.
  • the receiver does not validate the function lock / unlock only when part I of the function code received corresponds to the locking / unlocking expected.
  • the receiver does not activate the functions localization assistance only when part II of the code function corresponds to the expected code for the function of location.
  • the width of the intermediate zone is a function the difference between the two power levels emitted.
  • a power difference of 6 to 8 dB allows a distance between the near area and the far area equal to the radius of the nearby area.
  • the intermediate zone has approximately a width 4 m.
  • this intermediate zone Thanks to the existence of this intermediate zone, the border between the near area (associated with the function lock / unlock) and the remote area (associated with the location function) is better separate. Since the transition between the two functions is marked, the operator appreciates more easily switching from one control zone to another, this which reduces the risk of unwanted action control.
  • the user actually has a double-range remote control that is transparent for him since a single touch on the box remote control is required to complete both features and both of which corresponding to the two ranges of the remote control appear to be completely independent, since there are no overlap between the nearby area (associated with unlock / lock function) and area distant (associated with the localization function and possibly the locking function).
  • a dual radio frequency remote control system scope for implementing this process includes a transmitter which comprises means for transmitting a signal whose function code has at least two parts of different power levels and a receiver that includes means for comparing power levels of these different parties to at least a threshold of definition of zone higher than the reception threshold, means for controlling the locking / unlocking of doors if the power levels of these two parts are greater than this area definition threshold and for order at least one localization aid function of the vehicle, and possibly the locking function, if the power levels of these two parts are below said zone definition threshold while being above the acceptance threshold, and that within other cases said means do not control the unlocking the doors and the function (s) assistance in locating the vehicle.
  • the transmitter referenced by 1 in this figure includes, for example, a processing unit 2 which generates the coded message when an operator actuates a push button 3 that presents the housing of said transmitter 1.
  • This processing unit 2 is connected to a stage radio frequency 4 which transmits the generated messages by unit 2 via a transmitting antenna 5 (RF modulated signal).
  • the remote control receiver referenced by 6 in said FIG. 5, comprises a reception antenna 7, and an RF reception and demodulation unit 8 to which the signals received by the antenna 7 are transmitted via a bandpass filter 9 centered on the transmission frequency F 0 .
  • An automatic gain control 8a is provided on the receiving unit 8.
  • the signal from this unit 8 is sent on a floor 10 for its comparison with the level of zone threshold.
  • This stage 10 includes a comparator 11 which receives on the one hand a signal corresponding to the zone threshold V s , and on the other hand the signal at the output of an amplifier 12 receiving the signal at the output of the unit 8.
  • the demodulated signals (messages) in output from unit 8 are transmitted to a decoding unit 13 which verifies the code carried by the received signal.
  • This unit 13 controls (signal S c ) the various functions of the vehicle V associated with the signal received as a function of the codes carried by this signal, as well as of the signal at the output of the comparator 11 and of information from the vehicle relating to the state locked or unlocked doors thereof (signal S v ).
  • the signal emitted can carry other information than the order information locking / unlocking of the doors, and in particular comfort information.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The control delivers the signal carrying control codes at two different power levels. The received signal is compared to a threshold level, and the locking/unlocking of doors is activated by the high power level, while a lower power level is used to activate the location aids. In the case of the received signal falling below a lower threshold no action is taken. The message carried by the RF signal includes an identification code for the vehicle and command codes activating the operation of the door locks or of the localisation device if the vehicle identification is verified.

Description

La présente invention est relative aux procédés et aux systèmes de télécommande radiofréquence à double portée pour véhicule automobile.The present invention relates to methods and to dual radio remote control systems scope for motor vehicle.

Des télécommandes à double portée pour véhicule automobile sont déjà connues.Dual range remote controls for vehicles automobile are already known.

Elles permettent à l'utilisateur de disposer de fonctions différentes selon la distance à laquelle il se trouve par rapport à son véhicule.They allow the user to have different functions depending on the distance at which it found in relation to his vehicle.

Une telle télécommande permet par exemple de déclencher à moyenne distance du véhicule l'allumage du plafonnier de celui-ci, pour permettre au conducteur de plus facilement retrouver son véhicule, le déverrouillage des portières n'étant quant à lui commandé que lorsque l'opérateur de la télécommande est très proche de son véhicule.Such a remote control allows for example trigger the vehicle's ignition at medium distance ceiling light, to allow the driver to find your vehicle more easily, unlocking doors being ordered only when the remote control operator is very close to his vehicle.

On définit ainsi théoriquement autour du véhicule plusieurs zones concentriques : l'une constitue une zone rapprochée (par exemple, jusqu'à des distances de 4 m par rapport au véhicule) dans laquelle le verrouillage/déverrouillage des portières du véhicule peut être commandé, l'autre constitue une zone plus éloignée (par exemple, pour des distances au véhicule comprises entre 4 et 30 m) dans laquelle d'autres fonctions du véhicule peuvent être activées, notamment des fonctions destinées à faciliter la localisation du véhicule par l'utilisateur.We thus define theoretically around the vehicle several concentric zones: one constitutes a zone close together (for example, up to distances of 4 m per vehicle) in which the locking / unlocking the vehicle doors can be ordered, the other is a more remote area (for example, for distances to the vehicle included between 4 and 30 m) in which other functions of the vehicle can be activated including functions intended to facilitate the location of the vehicle by the user.

Classiquement, on définit ces différentes zones de télécommande par les limites de portée d'émission.Classically, these different areas of remote control by transmission range limits.

Ainsi, dans un système de télécommande du type de celui proposé dans US 5,420,568, l'émetteur de la télécommande transmet à une unité de réception sur le véhicule un signal qui intègre un message crypté et un code fonction émis à une puissance nominale, qui est la même quelle que soit la fonction commandée. L'unité de réception décide en fonction du niveau de puissance qu'elle reçoit et donc de la distance entre l'émetteur et le véhicule si elle autorise l'une ou l'autre des actions portées par le code fonction.So in a remote control system like that proposed in US 5,420,568, the transmitter of the remote control transmits to a receiving unit on the carries a signal that incorporates an encrypted message and a function code issued at nominal power, which is the even regardless of the function ordered. The unit of reception decides according to the power level that it receives and therefore the distance between the transmitter and the vehicle if it authorizes one or the other of the actions carried by the function code.

Ce principe est celui qui est illustré sur la figure 1.This principle is the one illustrated in the figure 1.

Toutefois, pour un système de télécommande donné, la limite de portée varie notamment en fonction de l'environnement proche du véhicule (présence d'autres véhicules, poids lourds, bâtiments, hangars, structures du sol,...), ainsi qu'en fonction de la façon dont l'utilisateur tient le boítier de sa télécommande lorsqu'il l'actionne (boítier de la clé de contact tenu verticalement ou horizontalement, etc...).However, for a given remote control system, the range limit varies in particular depending on the environment near the vehicle (presence of other vehicles, trucks, buildings, hangars, structures soil, ...), as well as depending on how the user holds the case of his remote control when it activates (case of the ignition key held vertically or horizontally, etc.).

Dans le système de télécommande de EP 0 524 424, l'émetteur présente des boutons d'actionnement différents pour les deux fonctions à commander. Les codes fonction transmis sont d'une puissance différente selon le bouton actionné.In the remote control system of EP 0 524 424, the transmitter has different actuation buttons for the two functions to be controlled. Function codes transmitted are of different power depending on the button operated.

En particulier, le code correspondant à la fonction d'aide à la localisation est émis à la puissance nominale, tandis que le code correspondant à la fonction de verrouillage/déverrouillage est émis à une puissance réduite.In particular, the code corresponding to the localization aid function is issued to the power nominal, while the code corresponding to the function lock / unlock is issued at a power scaled down.

Le récepteur reçoit ou ne reçoit pas le code émis en fonction de la distance qui le sépare de l'émetteur. Le type d'action à commander est donc décidé au niveau de l'émetteur.The receiver receives or does not receive the transmitted code depending on the distance between it and the transmitter. The type of action to be ordered is therefore decided at the level of the transmitter.

Ce type de télécommande a été illustré sur la figure 2.This type of remote control has been illustrated on the figure 2.

Outre qu'il n'est pas transparent pour l'utilisateur, puisque celui-ci doit choisir celles des fonctions qu'il veut commander et actionner la télécommande en conséquence, ce principe de télécommande présente, de la même façon que celui illustré sur la figure 1, l'inconvénient majeur de ne pas permettre des définitions de zones parfaitement déterminées.Besides that it is not transparent to the user, since he must choose those of the functions he wants to control and operate the remote control accordingly, this remote control principle present, in the same way as that illustrated on the Figure 1, the major drawback of not allowing perfectly defined area definitions.

On constate en effet en pratique l'existence d'une zone intermédiaire relativement large (entre 3 et 10 m autour du véhicule) dans laquelle l'utilisateur n'obtient pas forcément l'action souhaitée.In practice, there is evidence of the existence of a relatively wide intermediate area (between 3 and 10 m around the vehicle) in which the user does get not necessarily the desired action.

Par ailleurs, étant donné que la fonction de verrouillage/déverrouillage - qui est la fonction essentielle de la télécommande - est associée à la partie de code qui est émis à un niveau de puissance réduit et non à la puissance nominale - dont la valeur maximale est imposée par les normes issues de la législation - la télécommande ne bénéficie pas de l'immunité maximale aux brouilleurs RF présents sur le site.Furthermore, since the function of lock / unlock - that is the function essential of the remote control - is associated with the part of code that is issued at a reduced power level and no at nominal power - the maximum value of which is imposed by the standards stemming from legislation - the remote control does not enjoy maximum immunity to RF jammers on site.

On notera également que pour obtenir de grandes différences de portées entre les deux types de fonction (4 m et 30 m pour certains véhicules), il est nécessaire de pouvoir disposer à l'émission d'une grande différence entre les deux niveaux de puissance (de l'ordre de 25 dB), ce qui est difficile à atteindre avec les technologies d'émission habituellement utilisées pour les télécommandes de clé de véhicules automobiles.It will also be noted that to obtain large differences in ranges between the two types of function (4 m and 30 m for certain vehicles), it is necessary to be able to have at the emission of a big difference between the two power levels (around 25 dB), which is difficult to achieve with technology usually used for remote controls of motor vehicle key.

Un but de l'invention est de pallier ces différents inconvénients.An object of the invention is to overcome these different disadvantages.

Elle propose à cet effet un procédé de télécommande radiofréquence à double portée pour véhicule automobile, caractérisé en ce que le signal émis présente un code fonction en au moins deux parties de niveaux de puissance différents, en ce qu'on compare à la réception les niveaux de puissance de ces différentes parties à au moins un seuil de définition de zone supérieur au seuil de réception, en ce qu'on commande le verrouillage/ déverrouillage des portières si les niveaux de puissance de ces deux parties sont supérieurs à ce seuil de définition de zone et en ce qu'on commande au moins une fonction d'aide à la localisation du véhicule si les niveaux de puissance de ces deux parties sont inférieurs audit seuil de définition de zone tout en étant supérieurs au seuil de réception, et en ce que dans les autres cas le déverrouillage des portières et la ou les fonction(s) d'aide à la localisation du véhicule ne sont pas commandées.To this end, it proposes a method of dual range radio frequency remote control for vehicle automobile, characterized in that the transmitted signal has a function code in at least two parts of levels of different power, compared to reception the power levels of these different parties to at minus a zone definition threshold greater than the threshold of reception, in that the locking / unlocking the doors if the power levels of these two parts are above this threshold of area definition and in that we order at least one vehicle location assistance function if power levels of these two parts are lower said area definition threshold while being higher at the reception threshold, and in that in other cases the unlocking the doors and the function (s) assistance in locating the vehicle is not ordered.

Avantageusement, le message émis porte un code d'identification du véhicule et un code fonction de la commande de verrouillage/déverrouillage des portières et le verrouillage/déverrouillage des portières, n'est commandé que lorsque ce code d'identification est vérifié.Advantageously, the message sent carries a code vehicle identification and a function code door lock / unlock control and locking / unlocking the doors is not ordered only when this identification code is verified.

Ce code d'identification est préférentiellement porté par celle des deux parties du message qui est émis avec la plus forte puissance.This identification code is preferably carried by that of the two parts of the message which is transmitted with the highest power.

Avantageusement encore, le message émis porte un code de la (ou des) fonctions d'aide à la localisation et cette (ou ces) fonction(s) n'est (ou ne sont) commandée(s) que lorsque le code d'identification du véhicule et le code fonction sont vérifiés.Advantageously again, the message sent carries a code of the localization aid (s) and this (or these) function (s) is not (or is not) controlled (s) only when the vehicle identification code and function code are checked.

L'invention concerne également un système de télécommande radiofréquence à double portée permettant la mise en oeuvre de ce procédé.The invention also relates to a system for dual-range radio frequency remote control for implementation of this process.

Avantageusement, le récepteur d'un tel système comporte des moyens pour vérifier sur le message un code d'identification du véhicule et un code fonction de la commande du verrouillage/ déverrouillage des portières et/ou un code d'identification de la (ou des) fonctions d'aide à la localisation ; notamment, il comporte des moyens pour vérifier le code d'identification du véhicule et le code fonction de la commande du verrouillage/déverrouillage des portières, sur celle des deux parties du code fonction qui est émise avec la plus forte puissance.Advantageously, the receiver of such a system includes means for verifying a code on the message vehicle identification and a function code door lock / unlock control and / or an identification code of the function (s) localization assistance; in particular, it includes means for verifying the vehicle identification code and the function code of the order of the locking / unlocking of the doors, on that of the two parts of the function code which is issued with the most strong power.

L'invention concerne en outre un récepteur pour un tel système de télécommande. The invention further relates to a receiver for a such remote control system.

Elle concerne également un véhicule automobile comportant un tel système de télécommande.It also relates to a motor vehicle comprising such a remote control system.

D'autres caractéristiques et avantages de l'invention ressortiront encore de la description qui suit. Cette description est purement illustrative et non limitative. Elle doit être lue en regard des dessins annexés sur lesquels :

  • les figures 1 et 2, déjà analysées, illustrent deux types de télécommande de l'art antérieur ;
  • la figure 3 illustre une télécommande conforme à un mode de mise en oeuvre possible pour l'invention ;
  • la figure 4 illustre les différentes zones de télécommande définies autour d'un véhicule, pour une télécommande du type de celle illustrée sur la figure 3 ;
  • la figure 5 est un synoptique illustrant un mode de réalisation possible pour le système de télécommande proposé par l'invention.
Other characteristics and advantages of the invention will emerge from the description which follows. This description is purely illustrative and not limiting. It must be read in conjunction with the appended drawings in which:
  • Figures 1 and 2, already analyzed, illustrate two types of remote control of the prior art;
  • Figure 3 illustrates a remote control according to a possible embodiment for the invention;
  • FIG. 4 illustrates the different remote control zones defined around a vehicle, for a remote control of the type of that illustrated in FIG. 3;
  • Figure 5 is a block diagram illustrating a possible embodiment for the remote control system proposed by the invention.

Dans le cas de la télécommande illustrée sur la figure 3, le code fonction du message émis par l'émetteur est constitué d'au moins deux parties distinctes qui correspondent à des codes fonction différents, ainsi qu'à des niveaux de puissance différents.In the case of the remote control illustrated on the Figure 3, the function code of the message sent by the transmitter consists of at least two separate parts which correspond to different function codes, as well as different power levels.

Une première partie I est émise à une puissance nominale. Cette première partie I est suivie d'une deuxième partie II qui est émise à une puissance réduite.A first part I is emitted at a power nominal. This first part I is followed by a second part II which is transmitted at a reduced power.

Le récepteur gère le signal qu'il reçoit de la façon suivante.The receiver manages the signal it receives from the next way.

Si aucun signal n'est reçu, l'opérateur est dans une zone éloignée en dehors de la portée de la télécommande et aucune fonction n'est commandée (hors zone).If no signal is received, the operator is in a remote area outside the scope of the remote control and no function is controlled (except zoned).

Si un signal est reçu, les niveaux de puissance des deux parties I et II du code fonction sont comparés à un seuil de zone supérieur au seuil de réception.If a signal is received, the power levels of the two parts I and II of the function code are compared to a zone threshold higher than the reception threshold.

Si les niveaux de puissance de ces deux parties sont tous deux supérieurs au seuil de zone, le récepteur considère que l'opérateur se trouve à proximité immédiate du véhicule et autorise l'actionnement par exemple du verrouillage/déverrouillage des portières (zone proche - action 1).If the power levels of these two parts are both above the zone threshold, the receiver considers that the operator is in the immediate vicinity of the vehicle and authorizes the actuation for example of the locking / unlocking the doors (near area - action 1).

Si par contre, les deux parties du code fonction sont toutes deux en dessous du seuil de zone, il considère que l'opérateur est dans une zone trop éloignée pour que l'on puisse autoriser le déverrouillage des portières et est suffisamment proche pour que l'on puisse autoriser les fonctions permettant le verrouillage et/ou la localisation du véhicule : allumage du plafonnier, fonctionnement de l'avertisseur, allumage des feux clignotants (zone appelée zone éloignée sur la figure 3 - action 2).If on the other hand, the two parts of the function code are both below the zone threshold he considers that the operator is in an area too far away for we can authorize the unlocking of the doors and is close enough that we can allow functions for locking and / or locating of the vehicle: lighting of the dome light, operation of the horn, lighting of the flashing lights (area called remote area in figure 3 - action 2).

Si enfin ces deux niveaux de puissance se trouvent de part et d'autre du seuil de zone, le récepteur considère que l'opérateur est dans une zone intermédiaire entre les deux zones précédentes. Aucune fonction n'est commandée, exceptée éventuellement la fonction verrouillage.If finally these two power levels are found on either side of the zone threshold, the receiver considers that the operator is in an intermediate zone between the two previous areas. No function is ordered, except possibly the function locking.

A titre illustratif, un exemple possible pour les contours des différentes zones ainsi définies autour d'un véhicule V a été représenté sur la figure 4.As an illustration, a possible example for contours of the different zones thus defined around a vehicle V has been represented in FIG. 4.

Les cercles qui ont été représentés donnent la distance en mètre au centre du véhicule.The circles which have been represented give the distance in meters to the center of the vehicle.

Comme on l'aura compris, une telle configuration permet d'utiliser pour les deux parties du signal qui constituent le code fonction, des puissances relativement proches.As will be understood, such a configuration allows to use for both parts of the signal which constitute the function code, relatively powers relatives.

En outre, la fonction de verrouillage/ déverrouillage est associée à la réception de signaux de forte puissance émis à courte distance, tandis que la fonction de localisation, et éventuellement la fonction verrouillage, sont quant à elles associées à la réception de signaux de puissance faible émis à grande distance. In addition, the lock / unlocking is associated with receiving signals from strong power emitted at short range, while the location function, and possibly the function lock, are associated with reception low power signals transmitted over long distances.

Ainsi, la fonction de verrouillage/ déverrouillage qui est la fonction essentielle de la télécommande, bénéficie de la puissance maximum de l'émetteur et par conséquent d'une plus grande immunité aux brouilleurs radioélectriques voisins.So the lock / unlock function which is the essential function of the remote control, benefits from the maximum power of the transmitter and therefore of a increased immunity to radio interference neighbors.

On notera que le récepteur ne valide la fonction de verrouillage/déverrouillage que lorsque la partie I du code fonction reçu correspond bien au code de verrouillage/déverrouillage attendu.Note that the receiver does not validate the function lock / unlock only when part I of the function code received corresponds to the locking / unlocking expected.

De même, le récepteur n'active les fonctions d'aide à la localisation que lorsque la partie II du code fonction correspond bien au code attendu pour la fonction de localisation.Similarly, the receiver does not activate the functions localization assistance only when part II of the code function corresponds to the expected code for the function of location.

La largeur de la zone intermédiaire est fonction de l'écart entre les deux niveaux de puissance émis. Une différence de puissance de 6 à 8 dB permet une distance entre la zone proche et la zone éloignée égale au rayon de la zone proche. Ainsi, pour une zone proche de 4 m de rayon environ, la zone intermédiaire a environ une largeur de 4 m.The width of the intermediate zone is a function the difference between the two power levels emitted. A power difference of 6 to 8 dB allows a distance between the near area and the far area equal to the radius of the nearby area. Thus, for an area close to 4 m from radius approximately, the intermediate zone has approximately a width 4 m.

Grâce à l'existence de cette zone intermédiaire, la frontière entre la zone proche (associée à la fonction de verrouillage/déverrouillage) et la zone éloignée (associée à la fonction de localisation) est mieux séparée. Etant donné que la transition entre les deux fonctions est marquée, l'opérateur apprécie plus facilement le passage d'une zone de commande à l'autre, ce qui réduit les risques de commande d'action indésirée.Thanks to the existence of this intermediate zone, the border between the near area (associated with the function lock / unlock) and the remote area (associated with the location function) is better separate. Since the transition between the two functions is marked, the operator appreciates more easily switching from one control zone to another, this which reduces the risk of unwanted action control.

Par conséquent l'utilisateur dispose effectivement d'une télécommande à double portée qui est transparente pour lui puisqu'une seule touche sur le boítier de télécommande est nécessaire pour remplir les deux fonctionnalités et dont les deux fonctionnalités correspondant aux deux portées de la télécommande apparaissent comme totalement indépendantes, puisqu'il y a absence de recouvrement entre la zone proche (associée à la fonction déverrouillage/verrouillage) et la zone éloignée (associée à la fonction localisation et éventuellement à la fonction verrouillage).Therefore the user actually has a double-range remote control that is transparent for him since a single touch on the box remote control is required to complete both features and both of which corresponding to the two ranges of the remote control appear to be completely independent, since there are no overlap between the nearby area (associated with unlock / lock function) and area distant (associated with the localization function and possibly the locking function).

Un système de télécommande radiofréquence à double portée permettant la mise en oeuvre de ce procédé comprend un émetteur qui comporte des moyens pour émettre un signal dont le code fonction présente au moins deux parties de niveaux de puissance différents et un récepteur qui comporte des moyens pour comparer les niveaux de puissance de ces différentes parties à au moins un seuil de définition de zone supérieur au seuil de réception, des moyens pour commander le verrouillage/déverrouillage des portières si les niveaux de puissance de ces deux parties sont supérieurs à ce seuil de définition de zone et pour commander au moins une fonction d'aide à la localisation du véhicule, et éventuellement la fonction verrouillage, si les niveaux de puissance de ces deux parties sont inférieurs audit seuil de définition de zone tout en étant supérieurs au seuil de réception, et en ce que dans les autres cas lesdits moyens ne commandent pas le déverrouillage des portières et la ou les fonction(s) d'aide à la localisation du véhicule.A dual radio frequency remote control system scope for implementing this process includes a transmitter which comprises means for transmitting a signal whose function code has at least two parts of different power levels and a receiver that includes means for comparing power levels of these different parties to at least a threshold of definition of zone higher than the reception threshold, means for controlling the locking / unlocking of doors if the power levels of these two parts are greater than this area definition threshold and for order at least one localization aid function of the vehicle, and possibly the locking function, if the power levels of these two parts are below said zone definition threshold while being above the acceptance threshold, and that within other cases said means do not control the unlocking the doors and the function (s) assistance in locating the vehicle.

Ainsi qu'illustré sur la figure 5, l'émetteur, référencé par 1 sur cette figure comporte, par exemple, une unité de traitement 2 qui génère le message codé lorsqu'un opérateur actionne un bouton poussoir 3 que présente le boítier dudit émetteur 1.As illustrated in FIG. 5, the transmitter, referenced by 1 in this figure includes, for example, a processing unit 2 which generates the coded message when an operator actuates a push button 3 that presents the housing of said transmitter 1.

Cette unité de traitement 2 est reliée à un étage d'émission radiofréquence 4 qui émet les messages générés par l'unité 2 par l'intermédiaire d'une antenne d'émission 5 (signal modulé RF).This processing unit 2 is connected to a stage radio frequency 4 which transmits the generated messages by unit 2 via a transmitting antenna 5 (RF modulated signal).

Le récepteur de la télécommande, référencé par 6 sur ladite figure 5, comporte une antenne de réception 7, et une unité 8 de réception et de démodulation RF à laquelle les signaux reçus par l'antenne 7 sont transmis par l'intermédiaire d'un filtre passe-bande 9 centré sur la fréquence F0 d'émission.The remote control receiver, referenced by 6 in said FIG. 5, comprises a reception antenna 7, and an RF reception and demodulation unit 8 to which the signals received by the antenna 7 are transmitted via a bandpass filter 9 centered on the transmission frequency F 0 .

Un contrôle automatique du gain 8a est prévu sur l'unité de réception 8.An automatic gain control 8a is provided on the receiving unit 8.

Le signal en sortie de cette unité 8 est envoyé sur un étage 10 pour sa comparaison avec le niveau de seuil de zone.The signal from this unit 8 is sent on a floor 10 for its comparison with the level of zone threshold.

Cette étage 10 comporte un comparateur 11 qui reçoit en entrée d'une part un signal correspondant au seuil de zone Vs, et d'autre part le signal en sortie d'un amplificateur 12 recevant le signal en sortie de l'unité 8.This stage 10 includes a comparator 11 which receives on the one hand a signal corresponding to the zone threshold V s , and on the other hand the signal at the output of an amplifier 12 receiving the signal at the output of the unit 8.

Simultanément, les signaux démodulés (messages) en sortie de l'unité 8 sont transmis à une unité de décodage 13 qui vérifie le code porté par le signal reçu.Simultaneously, the demodulated signals (messages) in output from unit 8 are transmitted to a decoding unit 13 which verifies the code carried by the received signal.

Cette unité 13 commande (signal Sc) les différentes fonctions du véhicule V associées au signal reçu en fonction des codes portés par ce signal, ainsi que du signal en sortie du comparateur 11 et d'informations en provenance du véhicule relatives à l'état verrouillé ou déverrouillé des portières de celui-ci (signal Sv).This unit 13 controls (signal S c ) the various functions of the vehicle V associated with the signal received as a function of the codes carried by this signal, as well as of the signal at the output of the comparator 11 and of information from the vehicle relating to the state locked or unlocked doors thereof (signal S v ).

Bien entendu, le signal émis peut porter d'autres informations que celles de commande du verrouillage/déverrouillage des portières, et notamment des informations de confort.Of course, the signal emitted can carry other information than the order information locking / unlocking of the doors, and in particular comfort information.

Claims (9)

Procédé de télécommande radiofréquence à double portée pour véhicule automobile, caractérisé en ce que le signal émis présente un code fonction en au moins deux parties de niveaux de puissance différents, en ce qu'on compare à la réception les niveaux de puissance de ces différentes parties à au moins un seuil de définition de zone supérieur au seuil de réception, en ce qu'on commande le verrouillage/déverrouillage des portières si les niveaux de puissance de ces deux parties sont supérieurs à ce seuil de définition de zone et en ce qu'on commande au moins une fonction d'aide à la localisation du véhicule si les niveaux de puissance de ces deux parties sont inférieurs audit seuil de définition de zone tout en étant supérieurs au seuil de réception, et en ce que dans les autres cas le déverrouillage des portières et la ou les fonction(s) d'aide à la localisation du véhicule ne sont pas commandées.Dual radio frequency remote control method scope for a motor vehicle, characterized in that the signal sent has a function code in at least two parts of different power levels, in that compare to reception the power levels of these different parties to at least one definition threshold of area above the reception threshold, in that you order locking / unlocking the doors if the power levels of these two parts are greater than this zone definition threshold and in that we command the minus a vehicle location assistance function if the power levels of these two parts are below said zone definition threshold while being above the acceptance threshold, and that within other cases unlocking the doors and the vehicle location assist function (s) are not not ordered. Procédé selon la revendication 1, caractérisé en ce que le message porté par le signal émis comprend un code d'identification du véhicule et un code fonction de la commande de verrouillage/ déverrouillage des portières et en ce que le verrouillage/ déverrouillage des portières n'est commandé que lorsque ce code d'identification du véhicule et le code fonction sont vérifiés.Method according to claim 1, characterized in that the message carried by the transmitted signal includes a vehicle identification code and a function code of door lock / unlock control and in that the locking / unlocking of the doors is only ordered when this identification code of the vehicle and function code are checked. Procédé selon la revendication 2, caractérisé en ce que ce code d'identification est porté par celle des deux parties du message qui est émise avec la plus forte puissance.Method according to claim 2, characterized in that this identification code is carried by that of two parts of the message which is issued with the highest power. Procédé selon l'une des revendications précédentes, caractérisé en ce que le message porté par le signal émis comprend un code de la (ou des) fonctions d'aide à la localisation et en ce que cette (ou ces) fonction(s) n'est (ou ne sont) commandée(s) que lorsque ce code d'identification du véhicule et le code fonction sont vérifiés.Method according to one of the claims previous, characterized in that the message carried by the signal transmitted includes a code of the function (s) localization assistance and that this (or these) function (s) is (or are) only commanded when this vehicle identification code and function code are checked. Système de télécommande radiofréquence à double portée comportant un émetteur (1) à double portée et un récepteur (6) sur le véhicule automobile, caractérisé en ce que l'émetteur (1) comporte des moyens pour émettre un signal dont le message présente au moins deux parties de niveaux de puissance différents, en ce que le récepteur (6) comporte des moyens (10) pour comparer les niveaux de puissance de ces différentes parties à au moins un seuil de définition de zone supérieur au seuil de réception, des moyens (13) pour commander le verrouillage/déverrouillage des portières si les niveaux de puissance de ces deux parties sont supérieurs à ce seuil de définition de zone et pour commander au moins une fonction d'aide à la localisation du véhicule, et éventuellement la fonction verrouillage, si les niveaux de puissance de ces deux parties sont inférieurs audit seuil de définition de zone tout en étant supérieurs au seuil de réception, et en ce que dans les autres cas lesdits moyens ne commandent pas le déverrouillage des portières et la ou les fonction(s) d'aide à la localisation du véhicule.Dual radio remote control system range comprising a dual range transmitter (1) and a receiver (6) on the motor vehicle, characterized in that the transmitter (1) includes means for transmitting a signal whose message has at least two parts of different power levels, in that the receiver (6) includes means (10) for comparing the levels of power of these different parts at least a threshold zone definition higher than the reception threshold, means (13) for controlling locking / unlocking doors if the power levels of these two parts are greater than this area definition threshold and to order at least one assistance function for the location of the vehicle, and possibly the function interlock, if the power levels of these two parts are below said area definition threshold while being above the reception threshold, and in this that in other cases said means do not command unlocking the doors and the function (s) assistance in locating the vehicle. Système selon la revendication 5, caractérisé en ce que le récepteur (6) comporte des moyens (13) pour vérifier sur le message un code fonction de la commande du verrouillage/déverrouillage des portières et/ou un code de la (ou des) fonctions d'aide à la localisation.System according to claim 5, characterized in that the receiver (6) includes means (13) for check the message for a function code for the control of the locking / unlocking doors and / or a security code the localization assistance function (s). Système selon la revendication 6, caractérisé en ce que le récepteur (6) comporte des moyens (13) pour vérifier le code d'identification du véhicule et le code fonction de la commande du verrouillage/déverrouillage des portières, sur celle des deux parties du message qui est émise avec la plus forte puissance.System according to claim 6, characterized in that the receiver (6) includes means (13) for check vehicle identification code and code locking / unlocking control function doors, on that of the two parts of the message which is emitted with the strongest power. Récepteur pour un système de télécommande selon l'une des revendications 5 à 7, caractérisé en ce que le récepteur comporte des moyens pour comparer les niveaux de puissance de ces différentes parties à au moins un seuil de définition de zone supérieur au seuil de réception, des moyens pour commander le verrouillage/déverrouillage des portières si les niveaux de puissance de ces deux parties sont supérieurs à ce seuil de définition de zone et pour commander au moins une fonction d'aide à la localisation du véhicule si les niveaux de puissance de ces deux parties sont inférieurs audit seuil de définition de zone tout en étant supérieurs au seuil de réception, et en ce que dans les autres cas lesdits moyens ne commandent pas le déverrouillage des portières et la ou les fonction(s) d'aide à la localisation du véhicule.Receiver for a remote control system according to one of claims 5 to 7, characterized in that the receiver has means to compare the levels of power of these different parts at least a threshold zone definition higher than the reception threshold, means for controlling the locking / unlocking of doors if the power levels of these two parts are greater than this area definition threshold and for order at least one localization aid function of the vehicle if the power levels of these two parts are below said area definition threshold while being above the reception threshold, and in this that in other cases said means do not command unlocking the doors and the function (s) assistance in locating the vehicle. Véhicule automobile comportant un système de télécommande selon l'une des revendications 4 à 7.Motor vehicle comprising a remote control according to one of claims 4 to 7.
EP19970402221 1996-09-27 1997-09-24 RF remote controls with dual functional ranges for a motor vehicle Expired - Lifetime EP0833026B1 (en)

Applications Claiming Priority (2)

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FR9611795A FR2754090B1 (en) 1996-09-27 1996-09-27 IMPROVEMENTS ON DOUBLE-RANGE RF REMOTE CONTROLS FOR MOTOR VEHICLES
FR9611795 1996-09-27

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EP0833026B1 EP0833026B1 (en) 2004-04-14

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0980800A2 (en) * 1998-08-14 2000-02-23 Siemens Aktiengesellschaft Anti-theft protection device for a motor vehicle and method of using such a device
FR2783956A1 (en) * 1998-09-28 2000-03-31 Siemens Automotive Sa METHOD FOR LOCATING A MOTOR VEHICLE
EP1043464A2 (en) * 1999-04-09 2000-10-11 Eaton Corporation Passive remote access control system
WO2000077329A2 (en) * 1999-06-14 2000-12-21 Siemens Automotive Corporation Key fob with valet and car locator feature
FR2800782A1 (en) * 1999-11-10 2001-05-11 Valeo Securite Habitacle MOTOR VEHICLE EQUIPPED WITH A HANDS-FREE ACCESS AND / OR STARTING SYSTEM
FR2800781A1 (en) * 1999-11-10 2001-05-11 Valeo Securite Habitacle Remote doors and starting system control for car uses internal antenna which exchanges a signal with remote before opening the doors and a signal of a shorter range limited to the car's interior before starting the engine
FR2813257A1 (en) * 2000-08-23 2002-03-01 Siemens Automotive Corp Lp Passive entry system for vehicles, has vehicle transmitter and receiver which determine whether request for access to vehicle lock is authorized, by comparing strength of current signal from ID device with threshold value
EP1228931A2 (en) * 2001-02-03 2002-08-07 Conti Temic microelectronic GmbH Methode for starting an automobile
FR2828037A1 (en) * 2001-02-14 2003-01-31 Atmel Germany Gmbh METHOD FOR IDENTIFYING A RETRANSMISSION DURING A BIDIRECTIONAL TRANSMISSION OF CONTACTLESS DATA
EP1326195A1 (en) * 2001-12-27 2003-07-09 Siemens VDO Automotive S.A.S. Method for transmitting a query to a tag
WO2003091956A1 (en) * 2002-04-25 2003-11-06 Hermos Informatik Gmbh Controlling device for monitoring the spatial or mechanical delimitation of producer goods or materials in the production cycle by using transponder technology
US6671599B2 (en) 2001-02-02 2003-12-30 Siemens Vdo Automotive Process for monitoring the state of a safety facility
EP1079053A3 (en) * 1999-08-27 2004-01-07 Toyota Jidosha Kabushiki Kaisha Vehicle automatic door-locking system using identifier signal transmitting portable unit
EP1039075A3 (en) * 1999-03-19 2004-03-10 DaimlerChrysler AG Electronic locking system, in particular vehicle locking system
EP1429300A1 (en) * 2002-12-12 2004-06-16 Valeo Securité Habitacle S.A.S. Method for localizing a portable device of a hand-free security system, and associated hand-free security system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7397344B2 (en) * 2005-01-06 2008-07-08 Lear Corporation Dual range vehicle remote
EP2124209B1 (en) * 2008-04-29 2011-08-03 Hella KGaA Hueck & Co. Method for increasing the range of radio access systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992011431A1 (en) * 1990-12-21 1992-07-09 Siemens Aktiengesellschaft Closure system, for example central locking system for motor vehicles
DE4226053A1 (en) * 1991-08-09 1993-02-11 Alps Electric Co Ltd Remote control device esp. for operating vehicle door locking - operates automatically when user carrying transmitter enters specified zone around vehicle, and transmits identification and command information when button is pressed
EP0629759A1 (en) * 1993-06-21 1994-12-21 Valeo Electronique Remote control system with several functional ranges
EP0629758A1 (en) * 1993-06-21 1994-12-21 Valeo Electronique Remote control system with several functional ranges selected by means of threshold detection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992011431A1 (en) * 1990-12-21 1992-07-09 Siemens Aktiengesellschaft Closure system, for example central locking system for motor vehicles
DE4226053A1 (en) * 1991-08-09 1993-02-11 Alps Electric Co Ltd Remote control device esp. for operating vehicle door locking - operates automatically when user carrying transmitter enters specified zone around vehicle, and transmits identification and command information when button is pressed
EP0629759A1 (en) * 1993-06-21 1994-12-21 Valeo Electronique Remote control system with several functional ranges
EP0629758A1 (en) * 1993-06-21 1994-12-21 Valeo Electronique Remote control system with several functional ranges selected by means of threshold detection

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0980800A2 (en) * 1998-08-14 2000-02-23 Siemens Aktiengesellschaft Anti-theft protection device for a motor vehicle and method of using such a device
EP0980800A3 (en) * 1998-08-14 2001-12-12 Siemens Aktiengesellschaft Anti-theft protection device for a motor vehicle and method of using such a device
FR2783956A1 (en) * 1998-09-28 2000-03-31 Siemens Automotive Sa METHOD FOR LOCATING A MOTOR VEHICLE
WO2000019047A1 (en) * 1998-09-28 2000-04-06 Siemens Automotive S.A. Method for locating a motor vehicle
EP1039075A3 (en) * 1999-03-19 2004-03-10 DaimlerChrysler AG Electronic locking system, in particular vehicle locking system
EP1043464A3 (en) * 1999-04-09 2003-09-17 Delphi Technologies, Inc. Passive remote access control system
EP1043464A2 (en) * 1999-04-09 2000-10-11 Eaton Corporation Passive remote access control system
WO2000077329A3 (en) * 1999-06-14 2001-07-19 Siemens Automotive Corp Lp Key fob with valet and car locator feature
US6518882B2 (en) 1999-06-14 2003-02-11 Siemens Vdo Automotive Corporation Key fob with valet and car locator feature
WO2000077329A2 (en) * 1999-06-14 2000-12-21 Siemens Automotive Corporation Key fob with valet and car locator feature
EP1079053A3 (en) * 1999-08-27 2004-01-07 Toyota Jidosha Kabushiki Kaisha Vehicle automatic door-locking system using identifier signal transmitting portable unit
EP1099814A1 (en) * 1999-11-10 2001-05-16 Valeo Securité Habitacle Automobile provided with hands-free access and/or starting system
FR2800781A1 (en) * 1999-11-10 2001-05-11 Valeo Securite Habitacle Remote doors and starting system control for car uses internal antenna which exchanges a signal with remote before opening the doors and a signal of a shorter range limited to the car's interior before starting the engine
FR2800782A1 (en) * 1999-11-10 2001-05-11 Valeo Securite Habitacle MOTOR VEHICLE EQUIPPED WITH A HANDS-FREE ACCESS AND / OR STARTING SYSTEM
US6522027B1 (en) 1999-11-10 2003-02-18 Valeo Securite Habitacle “Hands-free” access and/or engine starting system for automobile vehicles
FR2813257A1 (en) * 2000-08-23 2002-03-01 Siemens Automotive Corp Lp Passive entry system for vehicles, has vehicle transmitter and receiver which determine whether request for access to vehicle lock is authorized, by comparing strength of current signal from ID device with threshold value
US6671599B2 (en) 2001-02-02 2003-12-30 Siemens Vdo Automotive Process for monitoring the state of a safety facility
EP1228931A2 (en) * 2001-02-03 2002-08-07 Conti Temic microelectronic GmbH Methode for starting an automobile
EP1228931A3 (en) * 2001-02-03 2004-03-10 Conti Temic microelectronic GmbH Methode for starting an automobile
FR2828037A1 (en) * 2001-02-14 2003-01-31 Atmel Germany Gmbh METHOD FOR IDENTIFYING A RETRANSMISSION DURING A BIDIRECTIONAL TRANSMISSION OF CONTACTLESS DATA
EP1326195A1 (en) * 2001-12-27 2003-07-09 Siemens VDO Automotive S.A.S. Method for transmitting a query to a tag
WO2003091956A1 (en) * 2002-04-25 2003-11-06 Hermos Informatik Gmbh Controlling device for monitoring the spatial or mechanical delimitation of producer goods or materials in the production cycle by using transponder technology
EP1429300A1 (en) * 2002-12-12 2004-06-16 Valeo Securité Habitacle S.A.S. Method for localizing a portable device of a hand-free security system, and associated hand-free security system
FR2848709A1 (en) * 2002-12-12 2004-06-18 Valeo Securite Habitacle METHOD FOR LOCATING A PORTABLE HANDS-FREE SECURITY SYSTEM DEVICE, AND ASSOCIATED HANDS-FREE SECURITY SYSTEM

Also Published As

Publication number Publication date
FR2754090A1 (en) 1998-04-03
FR2754090B1 (en) 1998-12-18
DE69728617T2 (en) 2005-04-21
EP0833026B1 (en) 2004-04-14
DE69728617D1 (en) 2004-05-19

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