WO2011057856A1 - Verfahren zur prüfung einer zugriffsberechtigung auf eine funktion eines kraftfahrzeugs - Google Patents
Verfahren zur prüfung einer zugriffsberechtigung auf eine funktion eines kraftfahrzeugs Download PDFInfo
- Publication number
- WO2011057856A1 WO2011057856A1 PCT/EP2010/064378 EP2010064378W WO2011057856A1 WO 2011057856 A1 WO2011057856 A1 WO 2011057856A1 EP 2010064378 W EP2010064378 W EP 2010064378W WO 2011057856 A1 WO2011057856 A1 WO 2011057856A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmitter
- radio
- signal
- vehicle
- antenna
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- 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
- B60R25/245—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user where the antenna reception area plays a role
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
- H01Q1/3241—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems particular used in keyless entry systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3291—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted in or on other locations inside the vehicle or vehicle body
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
- G07C2009/00555—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks comprising means to detect or avoid relay attacks
Definitions
- the invention relates to a method for checking an access authorization to a requested function of a motor vehicle.
- the invention relates to a Ver drive ⁇ , wherein a signal is sent to a carried by the user ID transmitter with the aid of an antenna in the motor vehicle to pull to complete ⁇ authentication of the user and to check the authorization to access the requested function ,
- antennas are arranged in the motor vehicle which can initiate communication with the ID transmitter or can wake it up, at least with a wake-up signal.
- antennas are known with different ranges and different arrangements in the motor vehicle.
- antennas are known which are arranged in the area of the driver's door, front passenger door and the boot. With such a plurality of antennas (there are seven antennas partially or longer used), the position of the ID transmitter in or around the vehicle are located, are used in the ⁇ several antennas for the interrogation, communication and evaluation.
- Thatcham criteria determine how far certain electromagnetic antenna fields may extend outside the vehicle at most.
- the use of a plurality of antennas in a vehicle entails increased maintenance, increased costs and susceptibility to errors.
- a method which drives a single antenna with different transmission powers.
- the antenna is arranged laterally ⁇ from the central longitudinal axis, and is depending on which is the vehicle door ⁇ accessed driven with different transmission powers.
- the object of the invention is to provide a method for using fewer antennas in a vehicle for the reliable control of access or access authorization.
- a method for checking access authorization to a requested function of a motor vehicle is provided.
- At least one antenna in the motor vehicle is activated with the aid of a vehicle-side control device in order to emit a first radio signal at a first transmission power.
- the antenna transmits the radio signal in a space limited by the transmission power, which extends around the position of the antenna.
- the range depends on power, Antennencha ⁇ rakterizing and around the antenna.
- the required power can be determined for a specific vehicle type both by simulation calculations and empirically.
- the first radio signal is received by a mobile ID transmitter, provided it is within the range of the antenna at the first transmission power.
- the ID transmitter recommends intercepts the signal and responds in an embodiment of OF INVENTION ⁇ dung with a first radio response to the motor vehicle. Before answering the signal, a substantive check of the message coded with the signal can take place and the return response can be sent out as a function of the check. On the vehicle side, the radio response of the ID transmitter will catch emp ⁇ .
- the antenna in the motor vehicle is driven to transmit a second radio signal with a second, modified transmission power to the mobile ID transmitter, which in turn receives the signal, optionally analyzed and answered.
- the radio responses of the ID transmitter are analyzed to determine the access authorization on the vehicle side and depending on the evaluation or analysis, the requested function is enabled or disabled or not released.
- the signal strength of the received signal is detected by the ID transmitter, vice ⁇ converts to a signal strength value, and this is sent as a coded value in a Funkant ⁇ word to the on-vehicle control means.
- the determination of the strength of transmission signals is basically known in radio communication.
- the Received Signal Strength Indication (RSSI) is a measure of the received field strength in radio communications. At this value, a unitless value between 0 and 250 is determined wel ⁇ cher indicating the received signal strength.
- This RSSI value is transmitted by the ID transmitter to the vehicle-mounted device. Since the vehicle side, the radiated signal strength is known, and enters the variation of the signal strength at the alspulfol ⁇ constricting transmitted radio signals and also the communication of the ID transmitter with which said signals strength were collected EMP, a detailed analysis is possible. In a plausibility check, in particular the security of the system can be increased, since so-called relay station attacks or radio link extensions can be excluded.
- the invention makes communication with Various ⁇ NEN field strengths within a scan cycle and the return ⁇ message to the received transmission strengths in the ID transmitter-to-use.
- a multiple query of the ID transmitter at Vietnamese ⁇ different transmission power of the vehicle-side antenna numerous disadvantages can be compensated, which otherwise exist compared to a system with only one antenna compared to systems with multiple antennas.
- the invention makes use of the control of the antenna with different transmission powers in a query operation.
- the feedback from the ID transmitter is evaluated for several wake-up calls that were sent out with varying signal strength.
- the responses of the ID transmitter do not need to take place immediately after the signal has been received. Rather, several answers can be transmitted in a response packet ⁇ to. In the latter case, the vehicle-mounted device waits a predetermined period of time before the second signal is transmitted with a modified transmission power.
- a motor starter button is actuated.
- a radiation of a wake-up signal is used at a first transmission power, which would be registered by the ID transmitter with a first signal strength.
- the ID transmitter At a second, for example, increased transmission power, the ID transmitter would receive and register a correspondingly higher transmission power, which would not be the case in the case of a radio link extension.
- the returned information about the transmission powers received by the ID transmitter are taken into account in order to make the access control more secure. In particular, it is checked whether the transmission powers transmitted back by the ID transmitter are plausible in connection with the prescribed transmission powers.
- the invention advantageously utilizes the transmissions of multiple signal strengths in a verification process.
- the ID transmitter may answer the plurality of registered transmission signals from the vehicle side with a single radio response, for example after receiving two transmission signals from the vehicle. In this one radio answer, the information about the signal strength of the two received signals can be included.
- the common transmission in a single message from the ID transmitter is particularly advantageous because the ID donors Soifigen Energy ⁇ serven be spared because fewer radio messages need to be sent out.
- the antenna is arranged at a decentralized position in the motor vehicle, where ⁇ means decentralized in this context that it is arranged offset to ei ⁇ ner plane of symmetry of the vehicle, in particular the vertical plane of symmetry in the longitudinal direction.
- the ID transmitter Since the ID transmitter is checked with several different field strengths within a verification process, it is possible to draw conclusions about the position of the ID transmitter in relation to the vehicle. It is possible, for example, thanks to the decentralized position with a first transmission power and extension of the field strength distribution to cover an area in the vehicle and also in front of a vehicle door, but without covering the area in front of the vehicle door on the opposite side.
- extension of the field strength distribution it is understood that the physically possible or infinite field strength distribution is not meant here, but rather the technically relevant field strength which is measurable above the triggering limit of the ID transmitter.
- a second, higher or lower transmission power is used to further limit the location of the ID transmitter.
- radio signals to the ID transmitter from the vehicle side outside ⁇ det. At least two of these radio signals are transmitted at Various ⁇ ner signal strength. However, it is according to the invention It is also possible to emit a plurality of radio signals with a first signal strength and to emit one or a plurality of second signals with a second signal strength or to emit radio signals with more than two different signal strengths or in any desired sequence. It is essential that the radio signals are transmitted at different transmission strengths and at least one radio answer is received on the vehicle side by the ID transmitter and used for evaluation, the reactions of the ID transmitter to both transmission powers.
- the ID transmitter can be addressed with a first transmission strength, which for each of these addresses generates an RSSI value and sends back to the vehicle ⁇ .
- RSSI values situated if the bearer of the ID transmitter gets off the vehicle, a reduction in the EMP collected signal strength, since the ID transmitter from the antenna is ent ⁇ removed.
- the user actuates who quit now ⁇ example, a closing button on the door, so a radio signal with a second signal strength is sent to the ID transmitter in turn transmits a response signal.
- the sequence of RSSI values during the disembarking and also those to the outside ⁇ the second radio signal changed, increased transmission power are checked for plausibility, and in particular whether they correspond to the signal strength profile of a disembarking user.
- Corresponding methods in which signals with different transmission power are transmitted on the vehicle side to the ID transmitter, can be triggered by various events on the part of the vehicle, for example, the response of door sensors for the request of a door opening or
- Figure 1 is a schematic view of the arrangement of a check-in antenna in the motor vehicle as well as the field distribution at below ⁇ different union transmission powers;
- FIG. 2 shows an exemplary first method sequence according to the invention for the door opening of a motor vehicle
- FIG. 3 shows an exemplary second method sequence according to the invention for the door opening of a motor vehicle
- FIG. 4 shows an exemplary third method sequence according to the invention for locking the door.
- an antenna 2 is arranged in a decentralized, namely in the region of the driver's seat, arranged ⁇ for example, below the driver seat.
- the antenna 2 can be controlled to transmit signals with different transmission power.
- a control for the emission with three different transmission powers is possible.
- the dashed circle 3a shows the principal range of a signal detectable by an ID transmitter, which can be detected at a first signal strength, namely the smallest of the three signal strengths (in practice, the field distribution is not circular or spherical, ie however, is not essential to this explanation).
- the circle 3b shows the field range for the emission with a second average signal power while the circle 3c represents the emission with a third, highest transmission power.
- the larger transmission services include the areas which can be achieved with a smaller transmitting power ⁇ .
- wel ⁇ cher responds to the interrogation signal, are determined.
- An ID transmitter, 3c for example, in a circle, is not per ⁇ but within the circle 3a will be appreciated, for example, as not entitled to the vehicle start.
- the ID transmitter signal strengths of the transmission signal of the antenna 2 ermit ⁇ telt as well, and are transmitted as information to the motor vehicle back, can further conclusions on an un- disturbed and uncorrupted communication between the ID transmitter and
- an ID transmitter which is carried by a user who accesses the driver's door, will return a lower transmission power in the case of a query with the signal strength 3b than in the subsequent query with the transmission power 3c. If this Retired ⁇ sent sequence of signal strengths not as part of a plausibility bilticianskontrolle within acceptable deviations with the vehicle driven by the transmission power to be made to cover the access to the corresponding function of the motor vehicle is denied. On the other hand, for example, the access to the starting function of a motor is denied if the ID transmitter in response to a query with the signal strength 3a provides no feedback, but in contrast to the control with the signal strength 3c. In this case, for example, it is assumed that the ID transmitter is located outside the vehicle and therefore an engine start is not permitted.
- FIG. 2 shows a method according to the invention for controlling access to the opening of a motor vehicle door. posed.
- an approach of a user or the operation of a door opener is detected at a door.
- a first signal with a first signal strength is sent to the ID transmitter which the user should carry with him.
- the process is aborted and the system enters sleep mode at step 13. If a proper feedback from the ID transmitter, a second Sen ⁇ design is sent with increased signal strength from the decentralized antenna at step 14.
- step 15 it is again checked whether a plausible answer of the ID transmitter is present. If not, it enters sleep mode 13.
- step 16 the RSSI values transmitted back from the ID transmitter or the values of the detected signal strength are evaluated. These values have been transmitted in this example with the answer 12 and 15 from the ID transmitter for receiving the signal 11 and 14, respectively.
- the RSSI values are checked for plausibility strengthen to those Sendsignal- with which the remote antenna was angesteu ⁇ ert. If the RSSI values do not pass a plausibility check, sleep mode 13 is entered. If the RSSI plausibility check is successful, the door is opened in step 17 and an optical acoustic signal is sent out.
- the transmission of the first signal at step 11 is done with a signal strength wel ⁇ surface of the field distribution corresponds 3b in FIG. 1
- the second signal strength at step 14 corresponds to the transmission signal strength 3c from FIG.
- FIG. 3 shows a modification of the method from FIG. 2, the steps 10 a, 11 a and 14 a being carried out in the same way as the corresponding steps from FIG. 2.
- step 16a analogous to step 16 of FIG. 2, it is checked whether a radio link extension or relay station attack can be excluded on the basis of the signal strength values specified in the response from the ID transmitter. If this check is positive, the door is opened in step 17a and an optical acoustic signal is sent to the user.
- Figure 4 shows an alternative method embodiment, in which case the authorization to lock a door is queried.
- a door sensor detects the door opening after stopping the engine is closed resulting in a possible Bedürf ⁇ nis the user to get off from the vehicle. Triggered by this event with the transmission signals are dezentra ⁇ len antenna repeatedly emitted with a first constant power level, and is actuated for a while superiors passed time period or until a door closer. If the door closer 25 of the door has not been actuated within the predetermined time period of, for example, 40 seconds, a timeout is determined in step 21 and transferred to the sleep mode 22.
- a sequence of RSSI values in the ID transmitter is detected (step 23).
- an operation of the door closer is detected 25
- a transmission signal from the remote antenna at step 26 is transmitted with egg ⁇ ner increased transmission power and answered by the ID transmitter with information about the received signal strengths.
- the plausibility of the returned RSSI values is checked.
- the at step 23 was RSSI value sequence may, for example, not the end of the sequence for a predetermined threshold strength in the rising signal ⁇ ben as this to a stay of the user in the motor vehicle and the operation of the door closer by a third party.
- the response of the ID transmitter with the Sig ⁇ naltown the output with increased transmission power transmission signal in plausible ratio must follow the signal strength of ERS th and are the transmitted power levels. If the test is successful, the door is locked at step 28 and entered sleep mode at step 29. If the RSSI check is negative, the door is unlocked at 30 and an audible or audible warning is issued at step 31.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112012011239A BR112012011239A2 (pt) | 2009-11-13 | 2010-09-28 | processo para testar uma autorização de acesso a uma função de um veículo automotor |
CN201080051525.8A CN102667872B (zh) | 2009-11-13 | 2010-09-28 | 用于检验对机动车的功能的使用权限的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910044526 DE102009044526A1 (de) | 2009-11-13 | 2009-11-13 | Verfahren zur Prüfung einer Zugriffsberechtigung auf eine Funktion eines Kraftfahrzeugs |
DE102009044526.9 | 2009-11-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011057856A1 true WO2011057856A1 (de) | 2011-05-19 |
Family
ID=42985644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/064378 WO2011057856A1 (de) | 2009-11-13 | 2010-09-28 | Verfahren zur prüfung einer zugriffsberechtigung auf eine funktion eines kraftfahrzeugs |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN102667872B (de) |
BR (1) | BR112012011239A2 (de) |
DE (1) | DE102009044526A1 (de) |
WO (1) | WO2011057856A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019052831A1 (de) * | 2017-09-12 | 2019-03-21 | HELLA GmbH & Co. KGaA | Verfahren zur automatischen erkennung eines einem fahrzeug zugeordneten benutzeridentifikationsgeräts, benutzeridentifikationseinheit, computerprogrammprodukt und computerlesbares medium |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105741393B (zh) * | 2016-01-29 | 2019-04-26 | 北京三快在线科技有限公司 | 门锁系统的控制方法与装置、门锁的控制方法与装置 |
US9807570B1 (en) * | 2016-06-01 | 2017-10-31 | GM Global Technology Operations LLC | Systems and methods for detecting proximity and location of a smartphone or other device to a vehicle |
US20180151949A1 (en) * | 2016-11-30 | 2018-05-31 | Trw Automotive Us Llc | Antenna with parasitic element |
DE102017200668B4 (de) * | 2017-01-17 | 2019-01-17 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Absicherung eines Zugangs |
FR3072463B1 (fr) * | 2017-10-17 | 2020-06-19 | Valeo Comfort And Driving Assistance | Identifiant pour vehicule automobile unite electronique centrale associee |
Citations (5)
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DE102005033483A1 (de) * | 2004-07-21 | 2006-02-09 | Marquardt Gmbh | Schließsystem, insbesondere für ein Kraftfahrzeug |
DE102005056910A1 (de) * | 2004-11-30 | 2006-07-13 | Lear Corp., Southfield | Integriertes System zum passiven Zugang und zum schlüssellosen Zugang per Fernsteuerung |
US20060208854A1 (en) * | 2005-03-18 | 2006-09-21 | Siemens Vdo Automotive Corporation | Method to report LF remote signal strength via a RF link to an electronic control unit |
EP2070780A2 (de) | 2007-12-12 | 2009-06-17 | Mazda Motor Corporation | Intelligentes, schlüsselloses Zugangssystem und Verfahren zu dessen Betrieb |
DE102009013759A1 (de) * | 2008-03-27 | 2009-10-08 | Lear Corp., Southfield | Passives Fahrzeug-Türentriegelungssystem und Verfahren zum Betreiben desselben |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10032936A1 (de) * | 2000-07-06 | 2002-02-07 | Siemens Ag | Vorrichtung und Verfahren zum Steuern einer Zugangsberechtigung und/oder einer elektronischen Wegfahrsperre für ein Kraftfahrzeug |
DE10202330B4 (de) * | 2002-01-23 | 2011-09-29 | Marquardt Gmbh | Schließsystem, insbesondere für ein Kraftfahrzeug |
FR2868110B1 (fr) * | 2004-03-29 | 2007-10-19 | Valeo Securite Habitacle Sas | Procede pour condamner automatiquement des ouvrants de vehicule |
DE102004052904B4 (de) * | 2004-11-02 | 2006-09-28 | Siemens Ag | Verfahren zur Überprüfung einer Berechtigung für den Zugang oder die Benutzung eines Objektes, insbesondere eines Fahrzeugs |
DE102006001939A1 (de) * | 2006-01-14 | 2007-08-02 | Hella Kgaa Hueck & Co. | Zugangskontrollsystem für Kraftfahrzeuge |
CN101197068A (zh) * | 2006-11-30 | 2008-06-11 | 李尔公司 | 多信道车辆被动激活系统 |
-
2009
- 2009-11-13 DE DE200910044526 patent/DE102009044526A1/de not_active Ceased
-
2010
- 2010-09-28 WO PCT/EP2010/064378 patent/WO2011057856A1/de active Application Filing
- 2010-09-28 BR BR112012011239A patent/BR112012011239A2/pt not_active Application Discontinuation
- 2010-09-28 CN CN201080051525.8A patent/CN102667872B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005033483A1 (de) * | 2004-07-21 | 2006-02-09 | Marquardt Gmbh | Schließsystem, insbesondere für ein Kraftfahrzeug |
DE102005056910A1 (de) * | 2004-11-30 | 2006-07-13 | Lear Corp., Southfield | Integriertes System zum passiven Zugang und zum schlüssellosen Zugang per Fernsteuerung |
US20060208854A1 (en) * | 2005-03-18 | 2006-09-21 | Siemens Vdo Automotive Corporation | Method to report LF remote signal strength via a RF link to an electronic control unit |
EP2070780A2 (de) | 2007-12-12 | 2009-06-17 | Mazda Motor Corporation | Intelligentes, schlüsselloses Zugangssystem und Verfahren zu dessen Betrieb |
DE102009013759A1 (de) * | 2008-03-27 | 2009-10-08 | Lear Corp., Southfield | Passives Fahrzeug-Türentriegelungssystem und Verfahren zum Betreiben desselben |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019052831A1 (de) * | 2017-09-12 | 2019-03-21 | HELLA GmbH & Co. KGaA | Verfahren zur automatischen erkennung eines einem fahrzeug zugeordneten benutzeridentifikationsgeräts, benutzeridentifikationseinheit, computerprogrammprodukt und computerlesbares medium |
Also Published As
Publication number | Publication date |
---|---|
BR112012011239A2 (pt) | 2016-04-05 |
CN102667872A (zh) | 2012-09-12 |
CN102667872B (zh) | 2015-05-20 |
DE102009044526A1 (de) | 2011-05-19 |
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