EP3411856A1

EP3411856A1 - Methods and devices concerning a motor vehicle access and/or starting system

Info

Publication number: EP3411856A1
Application number: EP17702816.4A
Authority: EP
Inventors: Herbert Froitzheim
Original assignee: Continental Automotive GmbH
Current assignee: Continental Automotive Technologies GmbH
Priority date: 2016-02-03
Filing date: 2017-01-26
Publication date: 2018-12-12
Also published as: DE102016201601A1; CN108604396B; US20190039568A1; CN108604396A; US11390247B2; DE102016201601B4; WO2017133963A1

Abstract

The invention relates to methods and to a device (Kfz-Zug), in particular having a motor-vehicle access and/or starting system, having at least one universal key (Univ-Key1) for unlocking (Kfz-Contr, Tür-öff) and/or locking (Kfz-Contr, Tür-öff) and/or starting (MotStart) at least one motor vehicle (Kfz1), also having a server (Serv) and a mobile radio terminal (Mob1), wherein, at least after the motor-vehicle key (UnivKey1) has been trained (1a-1g) to a motor vehicle (Kfz1) by means of a first secret (Geheimn-anlern-serv-1), a further secret (Geheimn-anlern-Kfz-1) for unlocking (Kfz-Contr, Tür-öff) and/or locking (Kfz-Contr, Tür-öff) and/or starting the motor vehicle (Kfz1) is stored (Spei-Serv, Spei-Kfz1) in a server (Serv), and wherein the further secret (Geheimn-anlern-Kfz-1) can be transferred (2a-2c) from the server (Serv) to a universal key (Univ-Key1) via two interfaces (Mobi, Bluet-MS1<->UnivKey1) and the mobile radio terminal (Mob1).

Description

description

METHOD AND DEVICES CONCERNING A MOTOR VEHICLE ACCESS AND / OR START SYSTEM

The invention relates to methods and devices for unlocking a motor vehicle with an engine start and / or vehicle access system. An object of the invention is to optimize an engine starting and / or vehicle access system for motor vehicles. The object is achieved in each case by the subject matters of the independent patent claims. Some particularly advantageous Starting ^¬ refinements of the invention are specified in the dependent claims and the description.

Embodiments of the invention may enable a secure, universal implementation of at least one virtual key in each universal key for an engine start and / or vehicle access system for motor vehicles, which is particularly suitable for a plurality of virtual keys (in the form of (further) secrets) and / or or universal keys and / or

Vehicles and / or users is suitable, such. in a vehicle fleet or rental car fleet.

The invention may be implemented as a device in an engine start and / or vehicle access system of a motor vehicle and / or (with regard to, for example, transmitters / receivers), in particular in a motor vehicle key designed as a universal key (eg in the form of a mechanical key or radio key or a card etc.) and / or a mobile radio terminal and / or a server and / or a control each of a motor vehicle imple ^¬ mentiert be. In an advantageous embodiment, a universal

Keys each multiple protocols and / or multiple virtual keys in the form (further) secrets, etc. simultaneously manage. In a further embodiment, per vehicle Several universal keys are taught simultaneously and managed, for example, to allow multiple users simultaneous operation and / or access. In a further embodiment, a universal key may manage restricted rights, such as vehicle access only, access only without trunk access, trunk access only, etc. In another embodiment, a virtual key on a server is taught directly to vehicles or other access permissions and a normal training process is eliminated.

By giving a user a universal key that can connect to both the (most) vehicles and his or her mobile terminal, such as a smartphone (or directly) with a server Serv, which can also simulate virtual keys and assign them an expiration time , If necessary, some or more or all other additional ^¬ lektroniken a vehicle omitted, which would also usually still be carried out specifically for vehicle series. By means of embodiments according to the invention, it may be possible to modify a motor vehicle little or not or to make the safety mechanisms of a motor vehicle difficult or impossible to bypass. In the broadest sense, comfort functions of vehicle access and start-up can be retained (eg access via radio, passive entry, etc.). It may be issued (in the form of secret ^¬ nissen) with limited functionality (eg, only opening and closing) and Universal key and / or virtual key.

Further features and advantages of some advantageous embodiments of the invention will become apparent from the following

Description of embodiments of the invention with reference to the drawing. In this case, by way of example to illustrate some possible embodiments of the invention, in each case schematically in simplified form:

1 as an overview of a communication between server, mobile radio terminal, car key and vehicle control, namely for example by mobile phone, Bluetooth and possibly further interface ^

le (n), when teaching a universal key to a motor vehicle using a former secret, to generate a virtual (automobile) key in the form of another secret in the motor vehicle and server,

Fig. 2 as an overview of a communication between server, mobile device, car keys, vehicle control, door opener, engine, via mobile, Bluetooth and possibly other interface (s), when using a virtual key in the form of another secret in a universal Key for starting or opening or closing etc. of a motor vehicle.

1 shows an embodiment of the invention as an overview of some components of a motor vehicle ^{access ¬} and / or start-up system car train and a multi-part (la-lg) communication (in a key-learning) between a server Serv, a mobile station MSI ( a user Benl), one of several vehicle keys in the form of universal keys Univ-keyl, Univekey2 for (at least) one

Automotive vehicle or Kfz2 and a KfzContr of a motor vehicle Kfzl,

and here in each case a communication via wireless connections via in particular mobile radio Mob and / or Bluetooth connection (s) Bluet, Bluet-MSK-> UnivKeyl, BluetUnivKeyl <-> car and / or other vehicle-internal (radio / line etc. ) Interface (s) such as a wired vehicle bus CAN.

1 shows in an indicated memory Spei-Serv of a server Serv stored, (eg unique) generated (possibly more than two or more than ten or more than a hundred) virtual vehicle key (in the form of each another secret such as secret learning vehicle 1), two (of possibly several, possibly even more than two or more than ten or more than one hundred) vehicle keys in the form of universal keys UnivKeyl, UnivKey2, and a motor vehicle Kfzl, one of the universal key UnivKeyl (any example) respectively at least one force ^¬ vehicle Kfzl is trained (la-lg), and then for this (car) for opening (TürÖff) and / or closing (TürÖff) and / or start (MotStart) can be authorized (2a-2d), eg for a vehicle fleet such as a rental car fleet etc.

A universal key UnivKeyl and / or UnivKey2 here comprises (a Blue ^¬ toothschnittstelle with eg a Bluetooth antenna, for example) each have a radio interface BluetUKl through which it for example with a radio interface (for example also a Bluetooth interface with, for example a Bluetooth antenna)

BluetMSl a mobile station MSI can communicate, and by which he e.g. with a radio interface (e.g., also a Bluetooth interface with, for example, a Bluetooth antenna) BluetKfz (e.g., also a Bluetooth interface) of an automotive vehicle.

A mobile radio terminal MSI (of possibly several) here has a radio interface BluetMS1, indicated in the drawing, by means of which, e.g. with a radio interface BluetUKl (eg a Bluetooth interface) of a universal key UnivKeyl can communicate, as well as a mobile radio interface Mobi (such as for a 2G / 3G / 3.5G and / or 4G mobile network / WLAN, etc.) over which it via (at least) a mobile network Mobi can communicate with a server Serv (with, for example, indicated with two arrows mobile network connection).

In FIG. 1, as a first step la, a mobile radio terminal MSI (such as a mobile phone, tablet, computer, etc.) transmits, for example, under control of a software or application app via a mobile radio interface Mobi (such as 2G, 3G, 3.5G, 4G, WLAN) etc.) eg an identification MS1-ID (such as a MSISDN or other identifier, etc.) identifying the mobile station MSI and / or for example an indication PIN1 identifying the user Ben1 of the mobile station MSI (such as one previously received from the user Benl at the mobile station per Keypad / language etc) and / or a request Anf-Anlern (request for a learning protocol Anlernprot and / or after a learning secret secret-learning serv-1) to a with the mobile network Mobi connected server serv,

the (Serv) eg here identifies the mobile station MSI ^¬ indicative MS1-ID (such as a MSISDN etc.) and / or the user Ben 1 of the mobile terminal MSI identifying PIN1 (eg, each other associated / linked) stores in one indicated memory Spei-Serv.

In FIG. 1, in step 1b, the server Serv transmits a first secret (in this case an apprentice secret used for learning purposes) secret learning servl and possibly also a learning protocol for learning prot over the network Mobi to the mobile radio terminal MSI (and stores, for example, here that this secret learning servl now belongs to the identification MS1-ID identifying a mobile radio terminal MSI and / or the PIN1 identification identifying the user Ben 1 of the mobile radio terminal MSI and / or is assigned).

In FIG. 1, in step 1c, the mobile radio terminal MSI transmits via a (eg Bluetooth) interface Bluet-MSK-> UnivKeyl to the universal key UnivKeyl the former secret (learning secret) secret learning service and possibly also a learning protocol training protocol, which stores the UnivKeyl universal key in a memory called Spei-UnivKeyl.

In Fig. 1, in step ld, the universal key transmits UnivKeyl via a (e.g., Bluetooth) interface

Bluet-UnivKeyl <-> Kfzl to a radio interface BluetKfz the motor vehicle Kfzl the former secret (Anlerngeheimnis) secret-learning servl and possibly also the learning protocol Anlernprot which stores the motor vehicle Kfzl in an indicated memory Spei-Kfzl. For (Bluetooth etc.) authentication on a (radio) interface BluetUniv- Keyl <-> car can be used for example. a secret known to the automotive vehicle and the universal key UnivKeyl (such as here secret learning servl or another) may be used.

In Fig. 1 in step le the motor vehicle transmits Kfzl to the universal key UnivKeyl via a (eg Bluetooth) interface Bluet-UnivKeyl <-> Kfzl another (in Kfzl generated and / or stored) secret secret-learning-Kfzl, which stores the universal key UnivKeyl in an indicated memory Spei-UnivKeyl (here only temporarily), and that eg future as a virtual key a universal key (eg UnivKeyl) to Öff ^¬ NEN / closing / starting etc. of the motor vehicle Kfz 1 can serve.

In Fig. 1, in step lf, the universal key transmits UnivKeyl via a (e.g., Bluetooth) interface

Bluet-MSK-> UnivKeyl to the mobile station MSI the further secret secret-learning vehicle, which stores the mobile station MSI in an indicated memory Spei-MSl. (If necessary, then possibly the universal key UnivKeyl deletes the further secret secret-learning-Kfzl.)

In Fig. 1 in step lg transmits the mobile station MSI via a (eg mobile) interface Mobi to the server Serv the further secret secret learning Kfzl, which stores the server Serv in an indicated memory Spei-Serv. Possibly. With another secret secret-learning vehicle from Kfzl to universal key UnivKeyl and / or to the mobile station MSI and / or up to the server Serv also an Identi ^¬ tätsangabe ID-Kfzl on the motor vehicle Kfzl transferred and / or (in the universal Key UnivKeyl and / or mobile terminal MSI and / or server Serv) are stored so that later in a request (2a) under (possibly ua) indicating an identity ID-Kfzl a Kfzl in universal key UnivKeyl and / or mobile terminal MSI and / or in particular Server Serv there identified a further secret Ge ^¬ Heimn-learning-Kfzl stored there for this identity information ID-Kfzl a Kfzl and (to a universal key UnivKeyl and / or mobile terminal MSI

and / or motor vehicle for a vehicle opening and / or closing and / or a start, etc.).

In the universal key UnivKeyl and / or mobile terminal MSI, for example, the (there when learning and / or received later) stored further secret secret learning Kfzl eg immediately or after a predetermined (eg with a timer TimUKl in the universal key UnivKey 1 and / or a timer in the portable radio terminal MSI and / or Kfzl and / or server Serv etc. controlled) time automatically be deleted ,

Such a learning process of the universal key UnivKeyl to the motor vehicle Kfzl can be done, for example, with this same (UnivKeyl) or one (or more) other (UnivKey2) Universal key for several not shown Kraft ^¬ vehicles Kfz2, etc., for example, for a vehicle fleet. Thus, one or more vehicles Kfzl, Kfz2 etc. (after deletion in the used for learning la-lf Universal Key) (only) trained to a server Serv, so with a (eg only) there (Serv) stored further Secret Seek-learning-Kfzl bootable and / or apparent and / or closed and / or lockable only at the trunk etc. Now, as shown in FIG. 2, any of the universal key Univkeyl, UnivKey2 (eg, also by any user Benl , Ben2) from the server Serv (with eg (radio) transmission of a further secret secret stored on a motor vehicle Kfzl (eg with its identity ID-Kfz-1) and / or mobile terminal and / or user Benl and / or Code Pinl Anlern-Kfzl to the universal key) are authorized to start one (car) or more of the cars with another secret secret learning carl and / or open and / or close and / or only on the trunk to verse close etc.

Fig. 2 shows an authorization of a universal key UnivKeyl by a server Serv that this universal key UnivKeyl after this authorizing a motor vehicle Kfzl with a (eg for this in the form of its identity ID-Kfz-1 etc. findable) in the server Serv stored secrets secret-learning Kfzl start and / or open and / or close and / or close only at the trunk, etc. can.

In FIG. 2, as a first step 2a, a mobile terminal MSI (such as a mobile phone, tablet, computer, etc.) transmits, eg under the control of a software or application app, via a mobile radio interface Mobi (such as 2G, 3G, 3.5G, 4G etc.) one the mobile station MSI identifying indication MS1 ID (such as an MSISDN, etc.) and / or the user Ben 1 of the mobile station MSI identifying indication pinl (such as a user Benl before the mobile station by Tasta ^¬ ture / language etc. entered input) and / or one and / or a the motor vehicle Kfzl identifying information ID-Kfz-1 and / or a request Anf-Key (for another secret secret-learning serv-1 as a virtual key to open / Closing / starting / etc. Of a specific motor vehicle) to a server Serv connected to the mobile radio network Mobi. The server SERV verifies if necessary, the mobile station MSI identi ^¬ fizierende indication MS1 ID (such as etc a MSISDN.) And / or the user Ben 1 of the mobile station MSI identifies indication Pinl and / or the motor vehicle Kfzl identifying indication ID automotive 1 using values stored in an indicated memory Spei-Serv,

and / or identifies e.g. after successful testing (eg based on obtained MS1-ID and / or Ben 1 and / or ID-Kfz-1) the further secret secret-learning-serv-1 for opening / closing / starting etc. of a certain motor vehicle Kfzl in its memory Spei -serv.

In Fig. 2, in step 2b, the server Serv transmits a secret (eg, obtained from the obtained MS1-ID and / or Ben1 and / or ID-car-1) of the secret-learning vehicle-1 for opening, etc., a particular motor vehicle Car to the (hereafter requesting) mobile terminal MSI eg via a mobile interface ^¬ Mobi. In Fig. 2 transmits in step 2c, the mobile station MSI via a (eg Bluetooth) interface Bluet-MSK-> UnivKeyl to the (for example, with the mobile device just connected via Bluetooth) universal key UnivKeyl the other secret secret learning Kfzl (for the Kfzl), which stores the universal key UnivKeyl in an indicated memory Spei-UnivKeyl (eg only for a given time tl).

In Fig. 2 in step 2d transmits (eg for opening or closing or starting, etc.) of the universal key UnivKeyl via a (eg Bluetooth) interface Bluet-UnivKeyl <-> Kfzl to a radio interface BluetKfz of the motor vehicle Kfz the secret secret secrets -Kfzl, which the motor vehicle Kfzl if necessary, for example comparing and / or checking secret learning vehicles with the aid of a further secret stored in an indicated memory Spei-Kfzl, whereupon e.g. in agreement then by a KfzControl KfzContr over a (CAN etc.) interface CAN a door opener door starter or MotStart etc. of the motor vehicle Kfzl (opening or closing or starting etc.) is operated (depending on what the universal key demands, such eg door-to-open). The further secret secret learning vehicle can thus serve (in each case) as a virtual key for (for example only exactly) a motor vehicle motor vehicle 1.

The length of time for which another secret Ge ^¬ to home country-anlern-Kfzl to authorize a universal key UnivKeyl to (eg exactly), for example via an interface Bluet-UnivKeyl <-> Kfzl (eg Bluetooth or other radio cut parts such as PACE, RKE etc.) to cause a motor vehicle to open or close or start etc. may be limited, eg by (eg in step 2b and / or 2c) with the further secret secret learning vehicle to a universal key UnivKeyl Time tl is sent, for example, in the universal key UnivKeyl and / or motor vehicle Kfzl eg continuously compared with a timer TimrUKl, the universal key UnivKeyl only until the time of a motor vehicle Kfzl to open or close or start etc., and then nothing more. Further secret-Geheimn anlern-Kfzl can in Universal key for example in a detected tampering attempt, such as a stopping of the timer TimerUKl (for example, even when it is monitored by the server and / or mobile radio terminal) will be deleted ^¬ au tomatically.

One or more or all of the transmissions (e.g., la-lg, 2a-2d, etc.) of data may in particular be cryptographically secured.

In an advantageous embodiment, a universal key UnivKeyl can simultaneously manage a plurality of protocols of learning protocol and / or (further) secrets of secret learning vehicle 1, secret learning vehicle 2, etc., at the same time. In a further embodiment, several universal keys UnivKeyl, UnivKey2 can be trained and managed simultaneously per vehicle, e.g. to allow multiple users Benl, Ben2 simultaneous operation and / or access. In a further embodiment, a universal key may manage restricted rights, such as e.g. only a vehicle access, only one access without trunk access, only a trunk access, etc. In a further embodiment, a virtual key such as secret-Anlern-Kfz-1, home-Anlern-Kfz-2 on the server Serv directly to vehicles or others Access rights learned and the usual learning process can be omitted.

By leaving to a user Benl a universal key UnivKeyl, which can connect both with the (most) vehicles Kfzl, Kfz2 as well as via his mobile terminal such as a smartphone (or directly) with a server Serv, and also virtual keys (such Secret-Anlern-Kfz-1, Secret Anlern-Kfz-2) can simulate and this an expiration time (tl) can assign, may account for some or more or all other additional electronics, which are usually also usually still running specifically for vehicle series would. By embodiments according to the invention, it may be possible to modify a motor vehicle little or not or to make security mechanisms of a vehicle or difficult to bypass. In the broadest sense, comfort functions of vehicle access and / or take-off can be retained (eg access via radio, passive entry and passive go).

It can (only opening and / or closing, for example) are issued with limited features and universal key and / or other Ge ^¬ secrets.

Claims

Device (car train), in particular with a force ^¬ vehicle access and / or starting system,

with at least one universal key (Univ-Keyl) for unlocking (car-Contr, door-open) and / or locking (car-Contr, door-open) and / or starting (MotStart) at least one motor vehicle (car),

with a server (Serv),

and with a mobile terminal (Mobl),

wherein at least after a learning (la-lg) of the

Car key (UnivKeyl) to a motor vehicle (Kfzl) using a former secret (Secret teach-in-serv-1) another secret (Nursing-learning-car-1) for unlocking (car contr, door -Off) and / or locking (car-Contr, door-open) and / or starting the motor vehicle (Kfzl) in a server (Serv) stored (Spei-Serv, Spei-Kfzl) is, and the other secret (Geheimn Anlern-Kfz-1) from the server (Serv) to a universal key (Univ-Keyl) via two interface ^¬ places (Mobi, Bluet-MSK-> UnivKeyl) and the Mobilfun ^¬ kendgerät (Mobl) transferable (2a-2c) is.

Device (car key) according to claim 1,

the device being a control device

(KfzContr) for comparing and / or checking one in the motor vehicle (Kfzl) of a universal key

(Univ-Keyl) received, another secret (Ge ^¬ Heimn-learning-Kfz-1) with a in the motor vehicle (Kfzl) stored (Spei-car) further secret (secret learning vehicle 1),

wherein the control device (KfzContr) is designed only if the two further secrets (secret-learning vehicle 1) match and / or match,

enable and / or initiate unlocking (vehicle contr, door opener) and / or locking (vehicle contr, door opener) and / or starting (MotStart) of the motor vehicle (motor vehicle) (CAN, door open, MotStart)

Device according to one of the preceding claims, characterized in that

said apparatus (vehicle train) at least one universal key (Univ-Keyl), which each have a radio interface ^¬, esp., a Bluetooth interface

(BluetUKl), in order to communicate with a mobile radio terminal and / or with a motor vehicle (Kfzl, BluetKfz).

Device according to one of the preceding claims, characterized in that

the device (motor vehicle train) has at least one universal key (Univ-Keyl), (Univ-Keyl) each having a timer (TimrUKl) and the (Univ-Keyl) is adapted to the timer (TimrUKl) a him predetermined validity period (tl) of an allocated to it mitge ^¬ (2c) further secret (Geheimn-anlern-Kfzl) to (2d) opening or closing or starting a

Motor vehicle (car) to monitor.

Device according to one of the preceding claims, characterized in that

it includes more than one (Univ-Keyl, Univ-Key2) or more than ten or more than fifty universal keys, and / or that they have more than one (Univ-Keyl, Univ-Key2) or more than ten or more fifty former secrets

(Secret-learning-serv-1) and / or more secrets

Includes (secret-learning vehicle-1).

Method in which

in particular using a device (motor vehicle train) according to one of the preceding claims,

-a universal key (Univ-Keyl) receives a first secret (secret-learning-serv-1) from a server (Serv) (la-lc),

- and another secret (secret-learning-car-1) to Unlock (car-Contr, door-open) and / or locking (car-Contr, door-open) and / or start (MotStart) of a motor vehicle (Kfzl) of the motor vehicle (Kfzl) to the universal key (Univ-Keyl) transmitted (le) is transmitted to the server (Serv) (lf-lg), and stored in the server (Serv) (Spei-Serv) is.

Method according to claim 6,

where first a first secret (Ge ^¬ heimn-learning-serv- 1)

between a server (Serv) and a universal key (Univ-Keyl) and / or between a universal key (Univ-Keyl) and a motor vehicle (Kfzl) is transmitted (la-ld),

wherein thereafter another secret (secret learning vehicle 1) from a motor vehicle (Kfzl) via a universal key (Univ-Keyl) and another device, in particular in the form of a mobile station (MSI) to a server (Serv) is transmitted.

Method according to claim 6 or 7,

whereby from a server (Serv) over three interfaces (Mobi, Bluet-MSK-> UnivKeyl, BluetUnivKeyl <-> Kfzl) and over a universal key (Univ-Keyl) a first secret (Geheiman learning serv-1) to a Motor vehicle (motor vehicle) is transmitted,

and from the motor vehicle (car) via three interfaces (Mobi, Bluet-MSK-> UnivKeyl, BluetUnivKeyl <-> car) and a universal key (Univ-Keyl) another secret (secret-learning-car-1) to a Server (Serv) is transmitted,

wherein the three interfaces (Mobi, Bluet-MSK-> UnivKeyl, BluetUnivKeyl <-> Kfzl) are in particular radio interfaces,

in particular mobile radio interfaces (Mobi) and / or Bluetooth radio interfaces (Bluet-MSK-> UnivKeyl, BluetUnivKeyl <-> Kfzl). Method, in particular using a device according to one of the preceding claims 1-5,

for implementing a to (2d) opening (vehicle Contr, door öff) and / or closing (vehicle Contr, door öff) and / or starting (MotStart) of a motor vehicle (Kfzl) verwend ^¬ cash (2d) further secrecy (Secret-learning vehicle) in a universal key (Univ-Keyl),

the other secret (secret learning carl) from a server (Serv) via two interfaces (Mobi,

Bluet-MSK-> UnivKeyl) to the universal key (Univ-Keyl),

in particular via two interfaces, which are (Mobi, Bluet-MSK-> UnivKeyl) radio interfaces.

Method according to claim 9,

where one of the two interfaces (Mobi,

Bluet-MSK-> UnivKeyl) is a mobile radio interface (Mobi),

and / or one of the two interfaces (Mobi, Bluet

-MSK-> UnivKeyl) a Bluetooth radio interface

(Bluet-MSK-> UnivKeyl) is.

Method according to one of claims 9-10,

wherein in a universal key (Univ-Keyl) more each for (2d) opening and / or closing and / or starting each of a motor vehicle (Kfzl, Kfz3) usable (2d) more secrets (secret learning car, Ge ^¬ home learning car2) (2d, 2y).

Method according to one of claims 9-11,

wherein in a universal key (Univ-Keyl) another (secret) secretion (2d) which can be used for only some of the functions (2d) "opening and / or closing and / or starting of a motor vehicle (motor vehicle, motor vehicle3)" Kfzl; Geheimle Anlern-Kfz2) is transmitted (2a-2c).

13. The method according to any one of claims 9-12,

where at least one universal key (UnivKeyl) in each case several protocols (Anlernprot) and / or several other secrets (Secret Anlern-Kfz-1, Geheimn Anlern-Kfz-2) for one or more motor vehicles (Kfzl, Kfz2) simultaneously saves (SpeiUnivKeyl).

Method according to one of claims 9-13,

where for a motor vehicle (motor vehicle) several universal

Keys (UnivKeyl, UnivKey2) taught simultaneously

(la-lg) be and / or stored (SpeiServ, Spei-Kfzl, 2a-2d), in particular by several users (Benl, Ben2) at the same time operation (MotStart) and / or access

(Door-open, door-open) and / or close (door-open, door-open).

Method according to one of claims 9-14,

wherein it is used in a device (car train) comprising more than one (Univ-Keyl, Univ-Key2) or more than ten or more than fifty universal keys, and / or more than one (Univ-Keyl , Univ-Key2) or more than ten or more than fifty former Secrets (Secret-learning-serv-1) and / or other secrets (Secret-Learning-Car-1) includes (Spei-Serv).