WO2018072930A1

WO2018072930A1 - Keyless authentication system for a motor vehicle, authentication method for granting an operation of a motor vehicle, and retrofit set

Info

Publication number: WO2018072930A1
Application number: PCT/EP2017/072985
Authority: WO
Inventors: Herr Boris ZILLER
Original assignee: Huf Hülsbeck & Fürst Gmbh & Co. Kg
Priority date: 2016-10-19
Filing date: 2017-09-13
Publication date: 2018-04-26
Also published as: DE102016119951A1

Abstract

The invention relates to a keyless authentication system (1) for a motor vehicle (2), wherein the authentication system (1) comprises an ID provider (3) having a first ID-provider-side transmitting and receiving device (4) for contactless authentication with respect to a vehicle-side transmitting and receiving device (5). The ID provider (3) has a second receiving device (6), which is coupled to the first transmitting and receiving device (4) in such a way that, by means of a switching signal received by the second receiving device (6), the readiness of the first transmitting and receiving device (4) for radio communication with the vehicle-side transmitting and receiving device (5) can be switched on and off. An ID provider base station (7) has a transmitting device (8) for sending out the switching signal and a radio device (9) coupled thereto, which receives an activation signal (10) which causes the predefined switching signal to be output by means of the transmitting device (8).

Description

Keyless authentication system for one

Motor vehicle, authentication method for granting an operation of a motor vehicle and retrofit kit

The invention relates to a keyless

Authentication system for a motor vehicle. The invention further relates to an authentication method for the

Granting an operation of a motor vehicle, a retrofit kit for retrofitting a motor vehicle with a keyless authentication system and a use of a

keyless authentication system.

The provision of vehicles for a larger number of operators has been common for a long time. Only one of many examples are fleets of companies. Besides such

Fleets where different operators from one

manageable and defined group of people are selected in the recent past, so-called

Car sharing concepts in importance. Car sharing concepts are based on the idea that a vehicle can be rented for a certain period of time. An operator is thus from a pool of

Vehicles for a limited period of time provided a vehicle.

Such car sharing solutions require that a tenant of a motor vehicle at the latest at the beginning of the lease, the physical access to the vehicle and the possibility of operating the motor vehicle is granted. Exists for this purpose

For example, the option of a key or

ID transmitter, also called ID transmitter, in one

Deposit locker and to give an authorized operator an access code to this locker. Concepts of this type, however, have the disadvantage that physical access to the key is granted. This one will stay

initially also exist, even if the actually granted

Use period has already expired. Also, one can

Manipulation of the key or ID donor not be prevented. Also, the risk of loss of the key or ID transmitter by the operator can not be excluded. Furthermore, there is a problem that the

timely return of keys must be organized and ensured. Among other things, due to these problems, there is a loss of comfort and safety in existing fleet and car sharing solutions. Other concepts include the retroactive installation of an authentication system based on, for example, the verification of smart cards. The expense associated with such retrofitting is

but time consuming and costly. In addition, the benefits of appropriately retrofitted systems due to the necessary distribution of identification evidence, for example

Chip cards, actually only for closed user groups.

The object of the invention is, based on the considerations set out an improved system

to provide access to a number of operators provided to a plurality or plurality of operators. The activation of a grant of access and / or operability of the

Motor vehicle should offer advantages in terms of both flexibility and comfort over the systems described above.

The task is solved with a keyless

An authentication system for a motor vehicle having the features of claim 1, with an authentication method of a motor vehicle having the features of claim 8, with a retrofit kit for retrofitting a motor vehicle with a keyless authentication system having the features of claim 11 and with the use according to the features of claim 12 ,

A keyless authentication system for a motor vehicle is provided. The authentication system includes:

- An ID transmitter, wherein the ID transmitter has a first ID transmitter side transmitting and receiving device. The first ID transmitter side transmitting and receiving device serves the purpose to establish and carry out a radio communication with a vehicle-side transmitting and receiving device. As part of the radio communication with the on-board transmitting and

Receiving device can be a contactless authentication of the ID transmitter. The ID transmitter also has a second receiving device. The second receiving device is such with the first ID transmitter side transmitting and

Receiving device coupled that the readiness of the first ID transmitter-side transmitting and receiving device for

Radio communication with the on-board transmitting and

Receiving device can be switched on or off by the second receiving device responds to a predetermined switching signal. The coupling can be both in

wired as well as done in other ways. In particular, the first and the second receiving device can be arranged on a same board and connected to one another on this. But also on wireless communication

based couplings are not excluded.

In particular, a portable ID transmitter can serve as an ID transmitter of the type described, as is known from the systems often referred to as keyless locking systems. In a frequently used embodiment of such a known

Keyless locking system is a radio communication between the motor vehicle and ID transmitter, by first a low-frequency LF wake-up signal at the initiative of a motor vehicle side

Control unit is sent. The emission can be done, for example, at regular intervals, often as pollen

referred to as. The LF wake-up signal is then received by the ID transmitter. The ID transmitter initiates in response to a

suitable LF wake-up signal high-frequency communication with the motor vehicle-side control unit. The high-frequency

Bidirectional communication between ID transmitter and motor vehicle involves an exchange of identifying data. These serve, after examination, mostly by means of

the on-board ECU, to determine if the

Operator is authorized or not authorized to enter and / or operate the motor vehicle. In cases where a such ID transmitter has an additional, second receiving device, and the first ID transmitter side transmitting and

Receiving device can be turned off or turned on, as soon as a corresponding switching signal is received, the ID transmitter is suitable according to the invention as part of the authentication system according to the invention.

The authentication system further comprises an ID transmitter base station. The ID transmitter base station has a

Transmitting device for transmitting the predetermined switching signal. The base station is constructive, especially in

Shaping and dimensions are designed such that the ID transmitter can be arranged within the ID transmitter base station, at the ID transmitter base station or positioned in the vicinity of the ID transmitter base station. The transmitting device of the ID transmitter base station can then be used after the intended positioning of the ID transmitter to the ID transmitter by sending the switching signal at desired times

or to turn on or off occasions. The functionality of the ID transmitter is thus controllably set up via the ID transmitter base station.

The ID transmitter base station has a radio device. The radio is arranged at the ID transmitter base station and with the transmitting device of the ID transmitter base station

coupled. The radio is set up, a

Activation signal to receive. It is envisaged that within the ID transmitter base station, a check of the

Activation signal on an authorization takes place. Checking the activation signal for authorization may

for example, be made within a circuit which is part of the radio device. Alternatively or additionally, it can also be provided that the check of the activation signal is carried out by a specially set up

Test circuit is made. The type of execution of the check of the activation signal for authority is

but not essential to the functionality of

Invention. Rather, it is essential that the successful

Checking the authorization is a necessary prerequisite for this in that the transmitting device is caused to have the predetermined switching signal. Depending on the design of the

Authentication system can be provided that the additional fulfillment of further conditions for the transmission of the switching signal are required.

The authentication system according to the invention thus provides an essential functionality of the corresponding

equipped ID donors of a keyless entry system

turn on or off. Only in the case that the readiness first ID transmitter-side transmitting and

Receiving device for radio communication with the

vehicle-side transmitting and receiving device is turned on, the ID transmitter can only the intended and known by way of example from the prior art

Radio communication with a vehicle-side transmitting and

Receiving device (which usually with a

corresponding control device is connected) make. By such an arrangement so the advantage is achieved that the authentication of the ID transmitter and thus the

Access granting or granting of operability of the

Motor vehicle is not accomplished by an approach of the ID transmitter, but by turning on the already in transmission and / or reception range of the motor vehicle ID transmitter. The ID transmitter can therefore always in a transmission and reception radius of the vehicle-side transmitting and

Receiving device may be located while an operation is possible only in those cases in which the first ID transmitter side transmitting and receiving device has been previously turned on accordingly.

To perform this for the authentication of the ID

Encoder required activation of the first ID transmitter side transmitting and receiving device, which is set up as part of the authentication system

Possibility for cooperative communication

Transmitter and radio provided. The

Transmitting device and the radio can thereby indirectly or directly connected or even as an integral unit.

By this interaction of the radio device and the transmitting device is achieved in an advantageous manner that an authentication of an authorized operator is effectively shifted to the level of the ID transmitter base station. This is done as follows: After the radio device has received a corresponding activation signal, the radio device can either itself or by means of an evaluation circuit connected to the radio, determine whether the

Activation signal has been sent by an authorized operator. Subsequently, the radio device in cooperation with the transmitting device, the transmission of the predetermined

Initiate switching signal from the transmitting device. After this, the transmission of the predetermined switching signal leads to the activation of the readiness of the first ID transmitter-side transmitting and receiving device explained in the introduction. Then, the ID transmitter with the vehicle-side transmitting and receiving device and optionally with the associated with this

Control device of the motor vehicle communicate. Starting with this communication, an implementation of a

Authentication procedure between ID donors

motor vehicle side controller in a manner such as is known in the art for ID encoders of keyless entry systems.

The authentication system according to the invention can thus further develop the hitherto customary authentication systems in an improved way: Previous systems were based on providing a key or an ID transmitter for a certain time to an authorized operator. The invention

Authentication system, however, allows a

Mode of operation according to which an ID transmitter always located within a transmission and reception radius of the motor vehicle is merely switched off and on. this makes possible

in particular, an access control or

Authorization control at the mental level of the

Interaction of activation signal and test of the To shift activation signal by radio device or by an evaluation circuits connected to the radio device.

An advantageous development of

Authentication system may be arranged such that the ID transmitter base station can include or include the ID transmitter undetectable. In particular, it can be provided that the ID transmitter base station is a closable housing, in which the ID transmitter can be inserted. However, other types of insertion of the ID transmitter in the ID transmitter base station can be implemented provided. For example, the ID transmitter base station may have a holding arrangement which engages in the ID transmitter or surrounds the ID transmitter. The stated embodiments of the ID transmitter base station provide the advantage that a universally made available ID transmitter base station by the insertion of an existing ID transmitter to one associated only for a motor vehicle

Authentication system can be converted.

According to a further advantageous embodiment, it can be provided that the ID transmitter base station

Has fastening means which are suitable for permanently fixing the ID transmitter base station to the motor vehicle. The term intractable attachment is to be understood as meaning that nondestructive attachment is possible.

In particular, this adhesive bonds or riveting can be used.

A further advantageous embodiment can provide that the radio device comprises a Bluetooth interface and / or WLAN interface. Bluetooth interfaces or WLAN interfaces have the advantage, by default of a variety of different communication devices

to be approachable. In particular, it can be provided that the Bluetooth interface and / or the WLAN interface

are set up to connect to a smartphone

manufacture and use. In particular, it can be ensured that the authentication to be performed takes place via the provision of an authentication code on a user's smartphone. A provider, For example, a fleet or a car sharing pool, an operator can provide, for example, a corresponding smartphone app, for example, after payment of a

corresponding rental fees for a certain period of time is enabled by software, the activation signal in for the Bluetooth interface and / or the WLAN interface

understandably send out.

In a further exemplary embodiment of the

Authentication system can be provided, for example, that the transmitting device of the ID transmitter base station and / or the second receiving device of the ID transmitter a passive

Have transponder. By providing a passive

Transponders, preferably a passive RFID transponder, the communication between transmitting device of the ID transmitter base station and the second receiving device of the ID transmitter can be made in an energy-saving manner. Furthermore, due to the low transmission distance of a passive transponder can be ensured that when reading a on the

Transponder stored codes the communication, which is caused by the transmitting device of the ID transmitter base station, only with the actually addressed ID transmitter.

In order to make it possible to check the activation signal for the authorization of the operator, a computing unit can furthermore be arranged on the ID transmitter base station. This can be designed for example as a microcontroller. In order to enable the ID transmitter base station to distinguish authorized from unauthorized activation signals, corresponding instructions are required to the arithmetic unit. These instructions at least include information which

Requirements for an activation signal or on

Activation signals are to be considered as authorized. In order to always provide this instruction in an updated manner, it can be provided in a further developed embodiment that the computing unit is connected to a network

is attachable. The connection to the network can thereby

directly or indirectly. They are both wired or via radio connection

Connections possible.

In order to reduce the required technical effort when operating an authentication system, it can also be provided that the ID transmitter base station has a memory module on which a supply of instructions is stored. The

Statements provide thereby with the examination of the

Activation signal instructed component with instructions

about which activation signal or which

Activation signals are to be regarded as proof of an authorization. For example, it can be provided that the

Memory module is connected to the previously introduced computing unit. Depositing a stock of instructions can

For example, done as a deposit of a number of check codes. For example, it may be provided that for each new operator in any sequence, for example in

random sequence, a check code is awarded. In a

Training can be provided that each statement can be used only once. By appropriate

Sizing the stock of instructions can ensure that for an intended life of the product

Authentication system enough instructions

are deposited.

Another idea of the invention, which can be realized using the authentication system according to the invention but also independently of this, relates to a

Authentication method for granting operation of a motor vehicle. The invention

Authentication procedure includes the following steps:

- Send a trained as an activation signal

Radio signal by means of a mobile radio emitter;

Receiving the activation signal by a

Radio device of an ID transmitter base station,

Checking the activation signal for authorization,

- Send a predetermined switching signal by means of a

Transmitting means of the ID transmitter base station after checking the activation signal has confirmed the authorization, Activating the readiness of the first ID transmitter-side transmitting and receiving device for radio communication with a vehicle-side transmitting and receiving device, after a second receiving device of the ID transmitter, the predetermined

Received switching signal and recognized as such.

In order to bring about the activation of the readiness of the first ID transmitter-side transmitting and receiving device, an indirect or direct coupling of the second

Receiving device of the ID transmitter provided with the first ID transmitter soifige transmitting and receiving device.

For the method according to the invention, those apply to the

Authentication system set forth and

Advantages in suitable for the process mental modification in an analogous manner.

A special advantageous development of

Authentication method provides that after enabling the readiness of the first ID transmitter-side transmit and

Receiving device for radio communication with the

vehicle-side transmitting and receiving device to a

later desired time also deactivating the

Readiness of the ID transmitter for radio communication takes place. The deactivation can be triggered by triggering the given

Switching signal, ie the same switching signal, which was also used to activate the readiness of the first ID transmitter-side transmitting and receiving device. Alternatively, the triggering can take place by means of a deviating predetermined, that is to say another, switching signal.

The manner in which the activation of the readiness of the first ID transmitter-side transmitting and receiving device is technically implemented in concrete terms is for the invention

immaterial. Thus, for example, it may be provided that in fact a hardware-based switching on or off of the ID transmitter-side transmitting and receiving device or a part of the ID transmitter-side transmitting and

Receiving device takes place. However, it can also be provided that a corresponding instruction of the ID transmitter-side transmitting and receiving device is implemented by software. It is essential above all, that the radio communication which the ID transmitter receives with the vehicle to grant access to the motor vehicle and / or the operation of the motor vehicle

allow, only possible after the second

Receiving device of the ID transmitter has received the predetermined switching signal.

Since it is provided that the ID transmitter is located in the vicinity or even within an ID transmitter base station and therefore the predetermined switching signal for receiving by the second receiving device has to travel only a small distance, is in a particularly advantageous manner and not least also as a measure to protect against manipulation from outside provided that the transmission power when sending the

Switching signal and / or the frequency of the switching signal to the smallest possible distance out and set up

is advantageously optimized for the shortest possible distance.

Particularly advantageous is provided that the mobile

Radio emitter is a smartphone. This can ensure that the use of the authentication method with a particularly large number of potential operators is possible, namely with each owner of a hardware and

sufficiently equipped smartphones by software.

Another aspect of the invention relates to a retrofit kit for retrofitting a motor vehicle with a keyless authentication system. The retrofit kit has an ID transmitter base station. The ID transmitter base station comprises:

a transmitting device for transmitting a predetermined switching signal for activating or deactivating one

Readiness of a suitably prepared ID transmitter for radio communication with an on-board transmitting and

Receiving device,

- A radio device with the transmitting device

is coupled, wherein the radio device is adapted to receive an activation signal and a transmission of the

predetermined switching signal by means of the transmitting device to enable the readiness of the ID transmitter for Radio communication after a validation of the activation signal has confirmed authorization.

Such a retrofit kit is accompanied by the advantage that with an universal set by subsequent attachment, for example, to a motor vehicle with subsequent inclusion of the ID transmitter in, at or near the ID transmitter base station an authentication method is made possible. This can be tuned by the proposed subsequent device individually to each of the existing vehicles or similar rentable objects. In particular, the retrofit kit for the implementation of a

Authentication method according to one of the embodiments described above and with one of the above-described

Authentication systems are used.

In particular, it may be provided a keyless

Authentication system for commissioning a

Motor vehicle to be used, which is provided as a rental car. In the specific use, the ID transmitter base station on the rental car is insoluble, that is not non-destructively releasably attached. The commissioning of the motor vehicle is carried out by a tenant of the motor vehicle uses a smartphone. The smartphone is powered by a landlord of the

Rental car to send the activation signal enabled, so that the renter can be identified as an authorized user.

In the course of this use, in particular one of the explained authentication systems and / or one of the described authentication methods can be used.

Further details, features and advantages of the subject of the invention will become apparent from the following description taken in conjunction with the drawings. In the drawings, an exemplary embodiment of the invention is shown.

It is understood that the features mentioned above as well as those explained below can be used not only in the respectively indicated combination but also in other combinations or alone. Show it:

Fig. 1: An exemplary representation of a

Basic constellation in which the keyless

Authentication system can be used;

Fig. 2: Schematic representation of an embodiment of the authentication system according to the invention.

FIG. 1 is a representative diagram showing an application of the authentication system 1. Within a motor vehicle 2 is a transmitting and

Receiving device 5 is provided, wherein the transmitting and

Receiving device 5 with a not shown

Control device of the motor vehicle 2 is connected. At another position in the motor vehicle 2 is the

Authentication system 1 arranged. The

In particular, the authentication system 1 also includes the ID transmitter 3 (not shown in FIG. 1). In addition to the motor vehicle 2 and arranged on the motor vehicle

Authentication system 1, a smartphone 15 is shown in Fig. 1, which as a training of a mobile

Radio emitter can be used by an operator to address a radio device of the authentication system 1.

A more detailed embodiment of

Authentication system 1 is shown in FIG. 2. The

Authentication system 1 has an ID transmitter base station 7, which in the embodiment shown as

lockable box is formed. The ID transmitter base station 7 is arranged undetachably within the motor vehicle 2 by means of adhesive bonding. Within the lockable box, an ID transmitter 3 is arranged. The ID transmitter 3 has a first ID transmitter-side transmitting and receiving device 4. The ID transmitter side transmitting and receiving device 4 has in the embodiment shown both an LF antenna and - receiving device and an RF antenna and - receiving device. The LF receiver receives corresponding trigger signals from the motor vehicle, in this case polling. It then enters by means of the HF Circuitry of the ID transmitter side transmit and

Receiving device 4 in a bidirectional radio communication with the vehicle-side transmitting and receiving device and thereby with the motor vehicle-side control unit, which is coupled to the vehicle-side transmitting and receiving device. As part of this bidirectional exchange, the

Authentication of an operator on the motor vehicle

carried out. After successful authentication, the operator is granted access to the motor vehicle and access to the operation of the motor vehicle. The ID transmitter 3 is set up such that the readiness of the ID transmitter 3 for radio communication with the vehicle-side transmitting and

Receiving device 5 is switched on and off. Switching on and off is done by sending a

Switching signal, which is received by the second receiving device 6. For this purpose, the second receiving device 6 has at least one microcontroller in addition to an antenna. On the exact execution is not important at this point; Rather, it is essential that a switching signal is received by the second receiving device 6 as a result of which a signal is output from the second receiving device 6 to the first ID transmitter side transmitting and receiving device 4, the active circuit or passive circuit of the ID transmitter side transmitting and receiving device 4 causes. The switching signal, which is received by the second receiving device 6, comes from the transmitting device 8.

A prerequisite for a transmission of the switching signal by the transmitting device 8 is in turn the receipt of a corresponding activation signal 10 by a radio device 9. In the illustration shown is for the transmission of the

Activation signal 10 uses a smartphone 15. On the

Smartphone 15 is a suitably prepared app

installed, with the permission of a landlord of the

Motor vehicle sending a qualifying

Authentication signal via a Bluetooth connection

causes. The radio device 9 of the ID transmitter base station 7 detects the activation signal after reception and checks it under With the help of the arithmetic unit 12 as qualifying. In the case in which the arithmetic unit 12 recognizes the activation signal 10 received by the radio device 9 as authoritative, the transmission device 8 transmits the transmission of the

Activation signal 10 causes. Both the radio device 9 and the transmitting device 8 have at least one

appropriately configured antenna; In addition, it may additionally be provided that the transmitting device 8 and / or the radio device 9 have a microcontroller.

Alternatively or additionally, however, it may also be provided that one or both of the transmitting device 8 and the radio device 9 are connected to an independently operating circuit, in particular within a microcontroller. The exact configuration is not essential for the operation and can be easily adapted or modified by the person skilled in the art. In the illustration shown, the ID transmitter base station 7 also has a memory module 14 on which a supply of

Instructions is deposited. These instructions are from the

Computing unit evaluable to the effect that the arithmetic unit interprets which of the activation signals 10 a

Prove entitlement and which of the activation signals 10 do not prove an authorization. In order to update, delete and / or supplement the data stored in this way, the memory module 14 is connected to a network 13 via the arithmetic unit 12. The network 13 is connected to the Internet. This access allows a system administrator to update the instructions for the processing unit, and in particular the data stored on the memory module. The fixing means I I a, I Ib also shown as holes can be used for permanent attachment of the ID transmitter base station, for example by riveting.

In a further development of the invention it can be provided that the ID transmitter base station 7, for example, wired, is connected to the control unit of the motor vehicle.

In particular, the arithmetic unit 12 or another

Be configured control unit of the ID transmitter base station 7, that after receiving a signal, in particular a Activation signal 10, a one or more times emitting an LF trigger signal for addressing the ID transmitter 3 at the first transmitting and receiving device 4 of the ID transmitter is caused. For example, a temporary polling of the trigger signal can also be initiated. In such a

Continuing education would be in a case in which with the

Activation signal 10 an authorization has been established after the activation of the key as a result of triggering the LF module of the ID transmitter side transmitting and receiving device 4 establishes a bidirectional RF communication of the ID transmitter 3 with the control unit of the motor vehicle. In the context of this bidirectional HF communication, authentication is established by data stored on the ID transmitter and, as a result, access to the motor vehicle and access to its operating functions are established. In a case that the activation signal 10 has been received, but as

Signal of an unauthorized person has been recognized or has not been recognized as the signal of a claimant, would

Trigger signal remain unanswered because the readiness of the first ID transmitter-side transmitting and receiving device 4 for radio communication with the vehicle-side transmitting and

Receiving device 5 remains switched off.

Claims

claims

A keyless authentication system (1) for a motor vehicle (2), wherein the authentication system (1) comprises:

an ID transmitter (3) with a first ID transmitter side transmitting and receiving device (4) for the

Carrying out a radio communication with a

vehicle-side transmitting and receiving device (5) for contactless authentication of the ID transmitter (3), wherein the

ID transmitter (3) has a second receiving device (6) which in such a way with the first ID transmitter side transmitting and

Receiving device (4) is coupled, that by means of a predetermined switching signal, which receives the second receiving means (6) of the ID transmitter (3), the readiness of the first ID transmitter side transmitting and receiving means (4) for radio communication with the vehicle side Send and

Receiving device (5) can be switched on and off,

an ID transmitter base station (7) having a

Transmitting device (8) for transmitting the predetermined

Switching signal has,

a radio device (9), which is arranged at the ID transmitter base station (7) and coupled to the transmitting device (8) of the ID transmitter base station (7), wherein the

Radio device (9) is arranged to receive an activation signal (10) and a transmission of the predetermined

Switching signal by means of the transmitting device (8) of the ID transmitter base station (7) to turn on the

Readiness of the ID transmitter (3) for radio communication after a check of the activation signal (10) has confirmed an authorization.

2. authentication system (1) according to claim 1, characterized in that the ID transmitter base station (7) in such a way is set up that it can include the ID transmitter (3) undetachable.

3. authentication system (1) according to one of

The preceding claims, characterized in that the ID transmitter base station (7) fastening means (I I a, I Ib) for the permanent attachment of the ID transmitter base station (7) on the motor vehicle (2).

4. authentication system (1) according to one of

preceding claims, characterized in that the radio device (9) comprises a Bluetooth interface and / or a WLAN interface.

5. Authentication system (1) according to one of

preceding claims, characterized in that the transmitting device (8) of the ID transmitter base station (7) and / or the second receiving device (6) of the ID transmitter (3) have an RFID transponder.

6. Authentication system (1) according to one of

The preceding claims, characterized in that the ID transmitter base station (7) has a computing unit (12) which can be connected to a network (13) for receiving

Instructions, which activation signal (10) or which

Activation signals (10) prove an authorization.

7. Authentication system (1) according to one of

The preceding claims, characterized in that the ID transmitter base station (7) has a memory module (14) on which a supply of instructions is stored on which activation signal (10) or which activation signals (10) prove authorization.

8. Authentication procedure for granting a

Operating a motor vehicle (2), comprising the steps: Sending out an activation signal (10)

formed radio signal by means of a mobile radio emitter (15),

Receiving the activation signal (10) by a radio device (9) of an ID transmitter base station (7),

Check the activation signal (10)

Authorization,

Sending a predetermined switching signal by means of a transmitting device (8) of the ID transmitter base station (7), after checking the activation signal (10) the

Authorization has confirmed

Activation of the readiness of the first ID transmitter side transmitting and receiving device (4) for

Radio communication with a vehicle-side transmitting and

Receiving device (5), after a second

Receiving device (6) of the ID transmitter (3) has received the predetermined switching signal and has detected as such, by means of a coupling of the second receiving device (6) of the ID transmitter (3) with the first ID transmitter-side transmitting - and receiving device (4).

9. Authentication method according to claim 8, characterized in that after activating the readiness of the first ID transmitter-side transmitting and receiving device (4) for radio communication with the vehicle-side transmitting and receiving device (5) to a later desired

Time is also a deactivation of the readiness of the ID transmitter (3) for radio communication by triggering the predetermined switching signal or by triggering a different predetermined switching signal.

10. Authentication method according to one of claims 8 and 9, characterized in that the mobile radio emitter (15) is a smartphone.

11. retrofit kit for retrofitting a motor vehicle (2) with a keyless authentication system (1), wherein the retrofit kit comprises an ID transmitter base station (7) comprising:

a transmitting device (8) for transmitting a predetermined switching signal for activating or deactivating a readiness of a corresponding

prepared ID transmitter (3) for radio communication with a vehicle-side transmitting and receiving device (5),

a radio device (9) connected to the

Transmitting device (8) is coupled, wherein the radio device (9) is adapted to receive an activation signal (10) and to cause a transmission of the predetermined switching signal by means of the transmitting device (8) for activating the

Standby of the ID transmitter (3) for radio communication after a check of the activation signal has confirmed an authorization.

12. Use of a keyless

Authentication system (1) according to one of claims 1 to 7 for the commissioning of a motor vehicle (2), which as

Car rental is provided and to which the ID transmitter base station (7) is permanently attached by a tenant of the motor vehicle (2) by means of a smartphone (15), wherein the smartphone (15) by a landlord of the rental car to send the activation signal ( 10) to identify the renter as the claimant.