EP4479276A1 - System und verfahren zum drahtlosen verbindungsaufbau und/oder zur drahtlosen kommunikation zwischen einem fahrzeug und einem fahrzeugschlüssel - Google Patents
System und verfahren zum drahtlosen verbindungsaufbau und/oder zur drahtlosen kommunikation zwischen einem fahrzeug und einem fahrzeugschlüsselInfo
- Publication number
- EP4479276A1 EP4479276A1 EP23700752.1A EP23700752A EP4479276A1 EP 4479276 A1 EP4479276 A1 EP 4479276A1 EP 23700752 A EP23700752 A EP 23700752A EP 4479276 A1 EP4479276 A1 EP 4479276A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- communication
- transceiver
- vehicle
- uwb
- connection
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/10—Communication protocols, communication systems of vehicle anti-theft devices
- B60R2325/101—Bluetooth®
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Definitions
- the invention relates to a system and a method for establishing a wireless connection and/or for wireless communication between a vehicle with at least a first transceiver and a control device and a vehicle key with at least a second transceiver and in particular an energy storage device.
- the vehicle welcoming device includes a key side and a vehicle side, the key side is provided with a first Bluetooth module and a first UWB module, and the first Bluetooth module is connected to the first UWB module.
- the vehicle side includes an ECU module, a main module and at least a third UWB module.
- the third UWB module and the main module are in a communication connection, and the main module and the ECU module are in a communication connection.
- the Bluetooth module in an automobile performs polling for a longer period of time, and when an approach of a user is detected is started, precise UWB positioning is started. This is intended to reduce the high power consumption of traditional low-frequency interrogation
- the publication DE 10 2017 103 201 A1 discloses a method for a security system of a vehicle for a keyless and/or passive keyless entry and/or keyless go activation of at least one security function of the keyless and/or passive keyless Entry and/or keyless go security system of the vehicle.
- an approach of a mobile identification transmitter to the vehicle is monitored, at least one (e.g. first and/or second) distance determination is initiated, in particular when the approach is detected, and the distance determination is carried out, with at least one distance information about a distance (e.g.
- the identification transmitter is localized relative to at least one (eg first and / or second) security zone.
- security information for the security system is determined depending on the localization. In other words, distance determination and/or localization is used to increase security during authentication.
- at least one communication is used here, with, for example, a first and a second communication being used to support each other via different types of communication, and, for example, each being activated depending on a first and second security zone.
- the distance is preferably determined as a determination of a specific distance, for example by a transit time analysis of a communication signal of the communication and/or based on properties of the communication signal, which change depending on the distance.
- the first communication is preferably carried out using a broadband communication method, in particular ultra-wideband (UWB), and the second communication is preferably carried out using LF and/or Bluetooth, in particular Bluetooth Low Energy, and/or HF communication.
- DE102020114403A1 relates to a method for activating at least one security function of a security system of a vehicle and discloses an access control system with an access element, such as a door, that can be adjusted between a closed state and an open state.
- the access control system has a detection device which is designed to detect at least one position of a portable key element relative to the detection device by radio.
- the access control system has an adjustment device which is designed to position the access element between to adjust its respective states depending on the detected position of the key element.
- the detection device is further designed to detect the position of the key element based on a combination of a Bluetooth radio signal and a UWB radio signal.
- a vehicle-mounted keyless entry and start system based on Bluetooth 5.0 and UWB is disclosed in document CN 212 890 239 U.
- the system includes a portable device with Bluetooth and UWB functions, a base station module with UWB functions, and a main base station module with Bluetooth and UWB functions.
- the UWB positioning and identity authentication on the portable device are carried out via the main base station module and the base station module, so that keyless entry and vehicle starting functions can be realized in which the positioning precision is high and the overall power consumption of the system is low.
- the disadvantage of the above prior art is the occurrence of energy peaks and, due to the resulting total power consumption, voltage drops occur, so that the BLE key can no longer function.
- the power consumption for BLE and UWB communication is generally higher than for classic forms of communication such as LF or HF communication.
- a method for establishing a wireless connection and/or for wireless communication between a vehicle with at least a first transceiver and a control device and a vehicle key with at least a second transceiver and an energy storage device which first involves setting up a wireless connection enabling data exchange by a first Communication method by means of the first transceiver and the second transceiver and then communication between the first transceiver and the second transceiver by the first communication method in a predetermined first connection interval.
- a further wireless connection enabling data exchange is then established using a second communication method using the first transceiver and the second transceiver.
- Communication then takes place between the first transceiver and the second transceiver using the second communication method in a predetermined second connection interval. Further, the communication between the first transceiver and the second transceiver is carried out sequentially/successively by the first communication method and the second communication method.
- the first and second transceivers are each a BLE transceiver and a UWB transceiver.
- a BLE connection is established and BLE communication is carried out.
- a UWB connection is established and UWB communication is performed.
- the vehicle when executing BLE communication, moves an anchor point of the BLE communication using the control device.
- the predetermined first connection interval is increased. It is advantageous that the connection interval of the BLE communication is expanded in such a way that a connection of another communication method can be carried out within the first connection interval.
- an embodiment is favorable in which the first connection interval is increased in such a way that exactly one UWB communication can be carried out.
- the method is optimized in terms of time with regard to the respective connection interval.
- control device regulates the sending of UWB messages using the second transceiver and the receiving of UWB messages using the first transceiver. In this way, power consumption of the vehicle key is optimized.
- a limit value for BLE communication is stored in the control device and if the limit value is exceeded, UWB communication is established and executed. It is further advantageous if localization/ranging is carried out during communication using the first communication method and the second communication method.
- the limit value for BLE communication is a predetermined distance of the vehicle key from the vehicle and a result of the localization/ranging by the first communication. cation process is compared with the limit value and if the limit value is exceeded, UWB communication is established and executed. This further optimizes power consumption of the vehicle key, since UWB communication only takes place when the vehicle key is in the vicinity of the vehicle, which is defined by the predetermined limit value.
- the vehicle is unlocked and/or locked during communication by the first communication method and by the second communication method.
- a system for establishing a wireless connection and for wireless communication between a vehicle with at least a first transceiver and a control device and a vehicle key with at least a second transceiver and in particular an energy storage device is also proposed, in particular for carrying out a method according to the above disclosure.
- the first transceiver and the second transceiver are designed, as connection partners, to establish a wireless connection that enables data exchange with one another using a first and a second communication method, and to establish communication between the first transceiver and the second transceiver using the first and the communication method in a predetermined first and to carry out the second connection interval.
- first and second communication methods can be carried out sequentially/successively, in particular only sequentially/successively. In this way, different energy-consuming communication methods will no longer be carried out in parallel, but sequentially/successively, which significantly reduces the peak power requirement.
- the features disclosed above can be combined in any way, as long as this is technically possible and they do not contradict each other.
- FIG. 1 shows a schematic representation of a system for establishing a wireless connection and for wireless communication between a vehicle and a vehicle key
- the vehicle 1 shows a schematic representation of a system 10 for establishing a wireless connection and/or for wireless communication between a vehicle 1 and a vehicle key 2.
- the vehicle 1 includes a first transceiver 11 and a control device 12 and the vehicle key 2 includes a second transceiver 21 and an energy storage device 22.
- the first transceiver 11 and the second transceiver 21 are designed as connection partners to provide a wireless connection that enables data exchange through a first and to establish a second communication method 3, 4 with each other and to carry out communication between the first transceiver 11 and the second transceiver 21 through the first and the communication methods 3, 4 in a predetermined first and second connection interval 31, 41.
- the first and second communication methods 3, 4 can be carried out sequentially/successively.
- the system is suitable for carrying out the method described below, which initially involves setting up a wireless connection enabling data exchange through a first communication method 3 by means of the first transceiver 11 and the second transceiver 21 and then communication between the first Transceiver 11 and the second transceiver 21 through the first communication method 3 in a predetermined first connection interval 31.
- a further wireless connection enabling data exchange is then established by a second communication method 4 using the first transceiver 11 and the second transceiver 21. Communication then takes place between the first transceiver 11 and the second transceiver 21 through the second communication method 4 in a predetermined second connection interval 41.
- the communication between the first transceiver 11 and the second transceiver 21 takes place through the first communication method 3 and the second communication method 4 executed sequentially/successively.
- the first and second transceivers 11, 21 are a BLE transceiver and a UWB transceiver, respectively, and when establishing the connection and communicating by the first communication method 3, a BLE connection is established and BLE communication is carried out. Furthermore, when establishing the connection and during communication by the second communication method 4, a UWB connection is established and UWB communication is carried out.
- the vehicle 1 moves an anchor point of the BLE communication by means of the control unit 12 the predetermined first connection interval is increased.
- the first connection interval is increased in such a way that exactly one UWB communication can be carried out.
- the control device 12 regulates the sending of UWB messages using the second transceiver 21 and the receiving of UWB messages using the first transceiver 11.
- a limit value 5 for BLE communication is stored in the control device 12 and if the limit value 5 is exceeded, UWB communication is established and executed.
- localization/ranging is carried out during communication by the first communication method 3 and by the second communication method 4.
- the limit value 5 for the BLE communication is a predetermined distance of the vehicle key 2 from the vehicle 1 and a result of the localization/ranging by the first communication method 3 is compared with the limit value 5 and if the limit value 5 is exceeded, the UWB communication constructed and executed.
- the vehicle is unlocked and/or locked.
- Figures 2 and 3 show a schematic comparison of BLE and UWB communication with and without optimization of the BLE connection parameters.
- Figure 2 it can be seen that with BLE and UWB communication without optimization of the BLE connection parameters P3+4, energy peaks occur and the power provided by the energy storage of the vehicle key for BLE communication is significantly higher than with BLE - and UWB- Communication with an optimization of the BLE connection parameters P3, P4, in which the energy consumption peaks are reduced, according to Figure 3.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022109694.7A DE102022109694A1 (de) | 2022-04-21 | 2022-04-21 | System und Verfahren zum drahtlosen Verbindungsaufbau und/oder zur drahtlosen Kommunikation zwischen einem Fahrzeug und einem Fahrzeugschlüssel |
| PCT/EP2023/050557 WO2023202804A1 (de) | 2022-04-21 | 2023-01-11 | System und verfahren zum drahtlosen verbindungsaufbau und/oder zur drahtlosen kommunikation zwischen einem fahrzeug und einem fahrzeugschlüssel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4479276A1 true EP4479276A1 (de) | 2024-12-25 |
Family
ID=84982434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23700752.1A Pending EP4479276A1 (de) | 2022-04-21 | 2023-01-11 | System und verfahren zum drahtlosen verbindungsaufbau und/oder zur drahtlosen kommunikation zwischen einem fahrzeug und einem fahrzeugschlüssel |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4479276A1 (de) |
| DE (1) | DE102022109694A1 (de) |
| WO (1) | WO2023202804A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108778855A (zh) | 2016-02-26 | 2018-11-09 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | 激活车辆安全系统的至少一个安全功能的方法 |
| US10919493B2 (en) * | 2018-02-08 | 2021-02-16 | Ford Global Technologies, Llc | Mobile device relay attack detection and power management for vehicles |
| JP2021150918A (ja) * | 2020-03-23 | 2021-09-27 | 株式会社東海理化電機製作所 | 通信装置、及びプログラム |
| DE102020114097A1 (de) * | 2020-05-26 | 2021-12-02 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren, Computerprogramm und Sende-Empfängermodul zum Anpassen einer Zeitsynchronisierung |
| DE102020114403A1 (de) | 2020-05-28 | 2021-12-02 | U-Shin Deutschland Zugangssysteme Gmbh | Zugangskontrollsystem und Verfahren zum Steuern einer Zugangskontrolle |
| US11470444B2 (en) * | 2020-06-18 | 2022-10-11 | Apple Inc. | Communication techniques using passive beacons |
| CN212890239U (zh) | 2020-08-12 | 2021-04-06 | 慧翰微电子股份有限公司 | 一种基于蓝牙5.0和uwb的车载无钥匙进入和启动系统 |
| CN213565803U (zh) | 2020-09-15 | 2021-06-29 | 同致电子科技(厦门)有限公司 | 一种采用蓝牙及uwb技术的汽车迎宾启动装置 |
-
2022
- 2022-04-21 DE DE102022109694.7A patent/DE102022109694A1/de active Pending
-
2023
- 2023-01-11 WO PCT/EP2023/050557 patent/WO2023202804A1/de not_active Ceased
- 2023-01-11 EP EP23700752.1A patent/EP4479276A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022109694A1 (de) | 2023-10-26 |
| WO2023202804A1 (de) | 2023-10-26 |
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Legal Events
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20240918 |
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| AK | Designated contracting states |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: FURTWAENGLER, FABIAN Inventor name: BAER, BERND Inventor name: FISCHER, JOERG Inventor name: KOCH, ANDREAS |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |