DE102014009450A1 - Keyless identification transmitter for a motor vehicle - Google Patents

Abstract

The invention relates to a keyless identification transmitter for a motor vehicle, comprising a memory unit (23) in which an identifier is stored, which allows access and / or operation of the motor vehicle (1) and which has a transmitting / receiving unit (21) via which the identifier to the motor vehicle (1) transferable and signals of the motor vehicle (1) are receivable. In a keyless identification transmitter, which has only certain rights, the identifier allows limited access and / or operation of the motor vehicle (1) when a valid vehicle key (15) is located inside or outside a communication area of the motor vehicle (1).

Description

The invention relates to a keyless identification transmitter for a motor vehicle, comprising a memory unit in which an identifier is stored, which allows access and / or operation of the motor vehicle and which has a transmitting / receiving unit, via which the identifier can be transmitted to the motor vehicle and signals of the motor vehicle are receivable.

From the DE 10 2011 011 697 A1 For example, a locking system and a method for controlling an access authorization or driving authorization for a vehicle are known, which are stored in a control device for controlling an access authorization and / or a driving authorization for the motor vehicle, which is installed in the motor vehicle and administers authorization data. The provision of the access authorization and / or driving authorization is carried out via a mobile communication device or a data processing device.

The DE 10 2005 021 377 A1 discloses a motor vehicle locking system and method for gaining access to a motor vehicle wherein a user carries an ID transmitter for a plurality of communication modules. The ID transmitter comprises a transceiver and an encoder. The communication modules are each housed in a door assembly of the motor vehicle and connected to a door lock operation. Each communication module has a transmitter and a receiver for performing bidirectional wireless communication with the transceiver of the ID transmitter.

In addition to the usual vehicle keys so-called "Keyless Go systems" are known in which access data of the vehicle owner are stored on a so-called Keyless Go key in which a chip is integrated. In addition, data carriers in the form of SD card, USB storage medium and NFC tags (near field communication transmission unit) are known.

In any case, there are high demands on the security concept regarding abuse. An access or operation of a motor vehicle can currently only be done with an associated vehicle key. This must be partially located at certain positions relatively close to the vehicle for individual functions.

The object of the invention is to provide a keyless identification transmitter, which also works independently of the presence of the valid vehicle key on the motor vehicle.

The invention results from the features of the independent claims. Advantageous developments and refinements are the subject of the dependent claims. Other features, applications and advantages of the invention will become apparent from the following description, as well as the explanation of embodiments of the invention, which are illustrated in the figures.

The object is achieved with a keyless identification transmitter in that the identifier allows restricted access and / or operation of the vehicle when a valid vehicle key is located inside or outside a communication area with the motor vehicle. This has the advantage that such a keyless identification transmitter can be passed on to other persons in order to allow them to use the motor vehicle in a certain range of functions. The actual valid vehicle key does not necessarily have to be present on the motor vehicle when the keyless identification transmitter is actuated, so that a lending or giving away of the vehicle key can be dispensed with.

Advantageously, the identifier allowing a restricted access and / or operation of the motor vehicle is stored on a chip which is arranged on a mobile unit which is remote from the vehicle. This chip can be attached to clothing and / or other accessories that are independent of the motor vehicle in use and do not represent electronic equipment, so that the wearer of this chip has limited authorization to access and operate the motor vehicle.

In one embodiment, the vehicle foreign mobile unit is designed as a decorative element or bracelet or key chain. This has the advantage that no separate electronic units are necessary to gain access to the motor vehicle.

In a variant, the transmitting / receiving unit communicates wirelessly with a control unit of the motor vehicle. This communication takes place simply when the mobile, non-electronic accessory is located in the vicinity of the motor vehicle, for which reason additional additional electronic units can be dispensed with.

Such an identification transmitter is particularly favorable in connection with a keyless-go control unit designed control unit.

In one embodiment, the rights associated with the identifier for the access and / or operation of the motor vehicle are owned by the owner of the vehicle valid vehicle key determinable. The owner of the valid vehicle key can easily manage the access rights on the chip via a control unit in the motor vehicle and forward the identification transmitter, which has this chip, to the desired group of persons to whom the defined rights have been assigned.

Advantageously, a functionality defined by the rights for the access and / or operation of the motor vehicle is defined depending on whether a valid vehicle key is located inside or outside a communication area of the motor vehicle. Thus, such a keyless identification transmitter can be passed on to children in the presence of the valid vehicle key within the communication area of the motor vehicle, while in the absence of the valid vehicle key, a so-called porter function is executable, in which the vehicle can be parked by a third person, but which access should be prohibited to certain parts of the vehicle, such as the trunk.

In one embodiment, the scope of functions is stored in an authorization profile which is stored in the memory unit of the identification transmitter. Thus, a new authorization profile does not have to be defined each time, but an already existing authorization profile can be passed on to further identification providers.

A development of the invention relates to a motor vehicle, comprising a, a Keyless Go and / or start system realisierendes control unit which communicates via a transmitting / receiving unit with a mobile identification transmitter for access and / or operation of the motor vehicle. In a motor vehicle in which limited rights are easily passed on to third parties, the keyless identification transmitter is designed according to at least one of the features of this patent application.

The communication modules are each housed in a door assembly of the motor vehicle and connected to a door lock operation.

The communication modules do not have to be housed in a door assembly. Furthermore, a direct connection with the door lock operation is not required. A separate control unit can control the door lock and be connected via a bus system with the other (Keyless-Go, EIS) control units.

Further advantages, features and details will become apparent from the following description, in which - where appropriate, with reference to the drawings - at least one embodiment is described in detail. Described and / or illustrated features may form the subject of the invention itself or in any meaningful combination, optionally also independent of the claims, and in particular may also be the subject of one or more separate application / s. The same, similar and / or functionally identical parts are provided with the same reference numerals.

Show it:

1 a schematic diagram of the keyless-go system in a motor vehicle,

2 An exemplary embodiment of a communication path between an identification transmitter and the motor vehicle,

3 a further embodiment of a communication history of the identification transmitter with the motor vehicle,

4 a further embodiment of a communication history between the motor vehicle and the identification transmitter.

1 shows a motor vehicle 1 in which a keyless go system 3 is included. Such a keyless go system 3 includes a decentralized control unit 5 , which is connected to 4 LF antennas and a radio receiver for RF communication. For door lock a separate door control unit is housed in the door. The decentralized control unit 5 is with a central control unit 11 of the motor vehicle 1 connected. These two controllers ( 5 and 11 ) may also be implemented as an integrated controller that includes both functions. The decentralized control unit 5 has one or more transceiver (s) 13 (several LF antennas and an RF transceiver), which with a keyless go key, which in the following as a car key 15 is referred to communicates wirelessly. Next to the vehicle key 15 is a keyless identification transmitter 17 present, which is a chip 19 includes, which is another transmitting / receiving unit 21 and a storage unit 23 includes. In this storage unit 23 An authorization profile is stored for the person who uses the keyless identification transmitter 17 used. About the transmitting / receiving unit 21 becomes an identifier to the remote control device 5 transfer.

The keyless identification transmitter 17 is designed as a chip, which on a mobile electronically-free element, such as a key fob 31 , a bracelet or an amulet or another piece of jewelry can be attached. By means of such a key-free identification transmitter 17 which gives the user only limited rights in accessing and operating the motor vehicle 1 allows to set different scenarios, some of which are explained below.

So with this keyless identification transmitter 17 a vehicle access via the keyless go system 3 of the motor vehicle 1 possible. If the vehicle user with the valid vehicle key 15 at the rear of the locked motor vehicle 1 To load, for example, the trunk, with only the trunk lid is open, other people in the vehicle 1 enter. This is possible at any time if these other persons each have an accessory with the keyless identification transmitter 17 carry on, on the entry side of the decentralized control unit 5 of the motor vehicle 1 is recognized. Because the vehicle key 15 also on the motor vehicle 1 can be granted access to the boarding. How out 2 can be seen, is an access of the other persons by means of the identification transmitter 17 only possible if the actual valid vehicle key 15 in the communication area of the motor vehicle 1 located. Unauthorized access to the motor vehicle is still not possible.

In another scenario, the vehicle user must use the vehicle key 15 not near the locked motor vehicle 1 stop them. The persons holding the keyless identification transmitter 17 but you can still access the entry page where the ID transmitter 17 from the remote control device 5 is recognized, get in, since the authorization of the identification transmitter 17 is set so that access to the entry is granted without getting a valid vehicle key 15 close to the motor vehicle 1 located. In this case, the authorization is limited to access only, and unauthorized persons continue to be denied access to the motor vehicle.

In another embodiment, associated with 3 should be explained, the vehicle user, for example, at a hotel ancestor, where the motor vehicle 1 to be parked by a porter. In this case, the porter for the execution of the so-called porter function of the identification transmitter 17 to hand over. Should the motor vehicle 1 parked without the porter to gain access to the trunk and the glove compartment, it is possible to complete these two areas with a mechanical key. Also, these two areas can be electrically secured and will only be unlocked if the correct vehicle key is present, but not if the identification sender is present with limited rights for porters. The ID transmitter given to the porter 17 has only permissions for locking and unlocking the vehicle, but not for unlocking the trunk and the glove box. The identification transmitter communicates 17 directly with the decentralized control unit 5 which the authorization, by means of the identifier of the identifier 17 be transmitted to the central control unit 11 of the motor vehicle 1 via an in-vehicle communication line 25 continues to exist.

If the motor vehicle is not only parked by the porter, but at the same time a theft, for example, be prevented in a loss of the identification transmitter, so has the identification transmitter 17 only authorizations with which the motor vehicle 1 a distance of up to 50 km. Furthermore, the maximum speed of the motor vehicle can also 1 be restricted to advantageously 50 km / h in such a journey. In another authorization, the keyless trailer with the identification transmitter 17 opening the bonnet for the user of the identification transmitter 17 lock.

For the cases explained can be in the identification transmitter 17 each deposit a profile, the restriction on the use of the given functions, eg. As the access to certain areas of the vehicle, such as the hood, the trunk and / or the glove box, be prevented. At the same time in such a profile restrictions on the vehicle characteristics, such as limiting the maximum speed possible. Also, personal settings in the vehicle, such as seating positions or radio stations, for example, family members who also use the vehicle can be set.

How out 4 As can be seen, the functionalities can also be distributed over several control units. This is how the valid vehicle key communicates 15 only with the decentralized control unit 5 while the identification transmitter 17 directly to the central control unit 11 of the vehicle 1 communicates. This is conceivable since already in the motor vehicle 1 existing other interfaces can be used. The decentralized control unit 5 and the central controller 11 of the motor vehicle 1 can thereby via the in-vehicle communication line 25 be connected.

Technical interfaces for the exchange of data and for the authentication or locating of the keyless identification transmitter 17 Bluetooth, WLAN and vehicle-specific keyless interfaces can be low-frequency and high-frequency. A possible expiration of a Authorization may look like this. The the identification transmitter 17 Carrying person operates the, a capacitive sensor 27 comprehensive outside door handle 29 , Because of this signal, the transmitting / receiving unit transmits 13 the decentralized control unit 5 an activation signal on a low frequency. The identification transmitter 17 receives this activation signal and responds with the identifier, which on the high frequency path with data content to the remote control unit 5 is sent. The data content includes the function code for the authorization of the identification transmitter 17 , This identifier is from the decentralized control unit 5 to the central control unit 11 of the motor vehicle 1 forwarded, which checks whether the identifier used 17 in the motor vehicle 1 is logged in. If this is the case, it is checked whether the authorizations passed with the identifier are sufficient for the requested action. If this is the case, an acknowledgment signal is sent to another decentralized control unit, which locks the door 9 opens and this opens.

In addition, a coupling with electronic devices, such as a smartphone, is conceivable. The inheritance of entitlement to coupled electronic devices, such as before the motor vehicle 1 unknown electronic devices on the motor vehicle, is possible at any time.

Although the invention has been further illustrated and explained in detail by way of preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. It is therefore clear that a multitude of possible variations exists. It is also to be understood that exemplified embodiments are really only examples that are not to be construed in any way as limiting the scope, applicability, or configuration of the invention. Rather, the foregoing description and description of the figures enable one skilled in the art to practice the exemplary embodiments, and those skilled in the art, having the benefit of the disclosed inventive concept, can make various changes, for example, to the function or arrangement of individual elements recited in an exemplary embodiment, without Protection area defined by the claims and their legal equivalents, such as further explanations in the description.

LIST OF REFERENCE NUMBERS

1

motor vehicle

3

Keyless Go system

5

decentralized control unit

7

vehicle door

9

Locks

11

central control unit

13

Transmit / receive unit

15

car keys

17

identification transmitter

19

chip

21

Transmit / receive unit

23

storage unit

25

in-vehicle communication line

27

capacitive sensor

29

Outside door handle

31

key Chain

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102011011697 A1 [0002]
• DE 102005021377 A1 [0003]

Claims (9)

Keyless identification transmitter for a motor vehicle, comprising a memory unit ( 23 ), in which an identifier is stored, the access and / or operation of the motor vehicle ( 1 ) and the one transmitting / receiving unit ( 21 ), via which the identifier to the motor vehicle ( 1 ) and signals of the motor vehicle ( 1 ) are receivable, characterized in that the identifier a limited access and / or operation of the motor vehicle ( 1 ), if a valid vehicle key ( 15 ) inside or outside a communication area of the motor vehicle ( 1 ) is located. Identification transmitter according to claim 1, characterized in that the one restricted access and / or operation of the motor vehicle ( 1 ) allowing identifier on a chip ( 19 ) stored on a non-vehicle mobile unit ( 31 ) is arranged. Identification transmitter according to claim 2, characterized in that the non-vehicle mobile unit ( 31 ) is designed as a decorative element or bracelet or key chain. Identification transmitter according to claim 1, 2 or 3, characterized in that the transmitting / receiving unit ( 21 ) wirelessly with a control unit ( 5 . 11 ) of the motor vehicle ( 1 ) communicates. Identification transmitter according to claim 4, characterized in that the control unit ( 5 ) is designed as Keyless-Go control unit. Identification transmitter according to at least one of the preceding claims, characterized in that the rights associated with the identifier for the access and / or operation of the motor vehicle ( 1 ) by the holder of the valid vehicle key ( 15 ) are determinable. Identification transmitter according to Claim 6, characterized in that a range of functions defined by the rights for the access and / or operation of the motor vehicle ( 1 ) is defined depending on whether a valid vehicle key ( 15 ) within or outside a communications area of the motor vehicle ( 1 ) is located. Identification transmitter according to at least one of the preceding claims, characterized in that the functional scope in an authorization profile in the memory unit ( 23 ) is stored. Motor vehicle comprising a keyless go and / or start system ( 3 ) realizing controller ( 5 ), which via a transmitting / receiving unit ( 13 ) with a mobile identification transmitter ( 17 ) for access and / or operation of the motor vehicle ( 1 ), characterized in that the keyless identification transmitter ( 17 ) is formed according to at least one of claims 1 to 9.

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