WO2008003285A1 - Identification system - Google Patents
Identification system Download PDFInfo
- Publication number
- WO2008003285A1 WO2008003285A1 PCT/DE2007/001082 DE2007001082W WO2008003285A1 WO 2008003285 A1 WO2008003285 A1 WO 2008003285A1 DE 2007001082 W DE2007001082 W DE 2007001082W WO 2008003285 A1 WO2008003285 A1 WO 2008003285A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor vehicle
- antenna
- base station
- signals
- passive
- Prior art date
Links
- 238000013475 authorization Methods 0.000 claims abstract description 22
- 239000011149 active material Substances 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 12
- 238000011156 evaluation Methods 0.000 description 12
- 230000006854 communication Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 9
- 230000004044 response Effects 0.000 description 6
- 230000009849 deactivation Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- 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
Definitions
- the invention relates to an identification system for a motor vehicle with an integrated into a base station of the motor vehicle electronic
- Circuit having an antenna designed to receive control signals.
- a motor vehicle typically has both at least one door lock preventing or releasing access to the vehicle as a protection device against unauthorized use, and an ignition lock which controls the starting of the engine.
- an identification transmitter is usually used as part of an identification system.
- the authorized user of the motor vehicle sends when needed, for example, to open the vehicle doors, via such an electronic identification transmitter a coded signal to a base station in the motor vehicle.
- the software of an evaluation unit integrated into the base station checks the code of the received signal, evaluates it and, in the case of a positive identification, issues associated releases.
- the use of such an identification transmitter for example for opening the vehicle doors and / or for deactivating the immobilizer, using a control electronics in the access and driving authorization for a
- the detection signal can therefore not be mistaken in principle with the detection signal of another identification transmitter; the disadvantage of mechanical keys that a coding can be repeated and another than the associated motor vehicle can be operated with the key is avoided by the use of an electronic identification system.
- Identification systems also eliminate the susceptibility of mechanically operated door locks and locks to mechanical damage such as damage or icing and mechanical manipulation of access authorization by opening the lock and driving authorization by destroying the mechanical steering wheel lock and shorting the ignition cables.
- the use of an electronic identification transmitter in a higher identification system excludes the mentioned risks of mechanical deactivation of
- the user of an electronic identification system is also no longer compelled to approach the vehicle at a certain point, such as the driver's door, in order to open the vehicle, rather than purely mechanical systems, and can be moved from any point outside the motor vehicle within a design the identification system predetermined range on the identification transmitter actuate the opening and closing mechanism.
- the identification transmitter transmits, on the one hand, a UHF signal to the base station in the motor vehicle.
- a UHF signal to the base station in the motor vehicle.
- an automated deactivation of an immobilizer integrated in the motor vehicle can also be provided in modern identification systems, provided the identification transmitter and thus the user is very close to or already in the motor vehicle.
- immobilizer immobilizer
- the identification transmitter sends on the other hand, an LF (low frequency) signal to the base station in the motor vehicle.
- An LF signal has a short-range range compared to the UHF (ultra-high frequency) signal.
- the immobilizer is only to disable when the user and the entrained identification transmitter are located inside the motor vehicle, preferably on the front seats, is in the deactivation case, the antenna at a short distance to the intended position of the user.
- the lower range of the LF versus the HF (high frequency) - or UHF signal thus implies a limitation of the range to the interior of the motor vehicle and thus an increase in safety.
- the position of the user is determined via an evaluation module in the base station, which measures the field strength of the received LF signal, and the immobilizer is deactivated only in the case of a positive result of the evaluation.
- each communication mode is assigned at least one separate electronic circuit in the motor vehicle, wherein the respective electronic circuits can be accommodated in a single base station or distributed to a plurality of components in the motor vehicle.
- Each electronic circuit requires its own properly designed antenna with an optimized design and embodiment for the transmission and reception of the signals assigned to it.
- conventional designs of the base station are constructed comparatively complex in order to provide the required components.
- the invention has for its object to provide an identification system of the type mentioned above, which has a simpler and more compact design of the base station.
- the antenna itself as well as the antenna associated evaluation logic designed such that a bidirectional communication including the power supply of Identifier without its own power supply in the immediate vicinity of the transmitting antenna is possible, for example, electric immobilizer in the transponder functionality with a few centimeters range; and a data transmission to an identification transmitter with its own power supply over a longer range is possible, for example in the keyless driving authorization systems such as passive entry, passive start, passive lock, etc.
- the invention is based on the consideration that for simpler and more compact design of the base station electronic components should be consistently saved.
- this includes the control electronics for the antennas for the various communication signals and the associated antennas.
- the aim of the consideration is to avoid the installation of several antennas for the transmission and reception of different communication signals assigned to the respective antenna.
- the functions of the previous types of communication should be ensured by the fact that a common antenna is designed for multiple communication techniques.
- the idea also continues to use the existing LF transmission antenna for the Passive Entry (Passive Access) signal also for transmitting and receiving the IMMO / transponder signal for the driving authorization.
- Passive Access Passive Entry
- IMMO / transponder for the driving authorization.
- a modification of the circuit of the drive electronics is provided in such a way that the different signals are to be transmitted and received via the same design of the common antenna.
- control electronics of the antenna is designed such that the transmission and reception of transponder signals of the IMMO circuit is possible as well as the transmission of interrogation signals of the keyless driving authorization systems such.
- the keyless driving authorization systems such as passive entry, passive start and / or passive lock systems.
- the common antenna for the transmission and reception of LF signals is designed as a ferrite rod antenna, since this then for
- Standard equipment of the base station of an identification system belongs and can be used for the transmission of both communication signals.
- the embodiment of the antenna is advantageous as a filled with magnetically active materials coil, since the antenna is to accommodate space-saving in this embodiment in the base station.
- the advantages achieved by the invention are in particular that costs for the production and installation of various components are saved in the vehicle and the necessary space for the base station can be reduced. This is achieved by the fact that the electronic circuit usually used for obtaining the driving authorization by a suitable design of the antenna on the one hand, which was previously provided exclusively for the immobilizer, and the required modification of the control electronics on the other hand in the position on the other hand, both communication signals over only to make an electronic circuit and only a common antenna in the base station in the vehicle.
- 1 shows an identification system with a base station in one
- Fig. 2 shows the schematic structure of the base station in the motor vehicle.
- the identification system 1 is provided for the wireless authorization release when accessing or operating a motor vehicle 2.
- the identification system 1 comprises an identification transmitter 3, which exchanges signals wirelessly, for example via a suitably selected radio link, signals, in particular radio signals, with a base station 4 arranged in the motor vehicle 2.
- the base station 4 comprises an integrated circuit
- Evaluation unit 6 in which a code of the received signal is evaluated individually via a software deposited, wherein in the case of a positive result of this evaluation of the received signals to a correct identification and thus an authorization of the user is concluded. If such an authorization is detected, a control unit not shown in detail, connected to the receiving unit 4 on the data side opens the locks on the vehicle doors and / or issues a release for deactivating an immobilizer provided in the motor vehicle 2.
- an identification system 1 the user is thus no longer forced to approach the motor vehicle 2 at a certain point, for example the driver's door, in order to open the motor vehicle 2, but rather the corresponding operability of the control elements from an arbitrary point outside the motor vehicle 2 within a system-dictated by the components of the identification system 1 range possible.
- the range is dependent on the signal strength and the design of the antenna 8 in the base station 4 and the corresponding design of the components in the associated identification transmitter.
- the identification system 1 For transmitting the correspondingly coded signal data, the identification system 1 comprises an identification transmitter 3.
- the identification transmitter 3 is accordingly suitably designed to transmit a signal to the assigned base station 4 in the motor vehicle 2 within the predetermined range.
- the components of the identification system 1 are basically designed for the transmission of two types of communication signals, namely on the one hand the so-called passive entry signals that determine the access authorization of a user, and on the other hand, the so-called IMMO or transponder signals in the LF frequency range, the driving authorization recognize and disable the immobilizer of the motor vehicle 2.
- FIG. 2 For the acquisition of the access authorization (passive entry) is shown in FIG. 2 of the associated electronic circuit 10 in the base station 4 in
- the identification transmitter 3 generates at least one response signal, which is sent to the base station 4 in the motor vehicle 2.
- the energy required for transmission is removed by the identification transmitter 3 from its own power supply or from an alternating field generated by suitable modulation by the base station 4 and not identified in any more detail.
- the identification transmitter 3 must be in the immediate vicinity of the antenna 8 of the 5 base station 4.
- Interrogation signal sent to an identification transmitter 3 to be carried by a user For this purpose, a radio signal is typically sent.
- the identification transmitter 3 transmits at least one response signal to the base station 4 in the motor vehicle 2 via said radio path. After at least one mutual data transmission, the release for starting the engine in the motor vehicle 2 takes place after evaluation of the signal in the evaluation unit 6 and the positive authentication of the user.
- Data transmission is taken from the signal transmitted by the base station 4 and transmitted back on the same signal at least one response signal, if the identification transmitter is in close proximity to the transmitting antenna 8. 5
- the range of the ID transmitter 3 for the IMMO signal is designed such that a data transfer at least in the region of the front seats of the motor vehicle 2 is possible. This should enable the user to deactivate the immobilizer comfortably, but for reasons of safety 0, it can be ruled out that deactivating it from a position outside the vehicle
- the LF transmitting and receiving unit 14 of the base station 4 is connected to an evaluation unit 6, which is designed so that in the case of receiving a response signal of the identification transmitter 3 from the 5 additionally encoded in the response signal encoded value of the field strength of the identification transmitter 3 received LF signal and the cryptological signals performs a distance measurement and determines the range of the signal.
- the identification transmitter 3 is able to perform a distance measurement of the signal strength of the received LF signal itself and transmits at least one response signal to the base station 4 for deactivating the immobilizer, provided that the distance does not exceed a defined value.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007000063T DE112007000063A5 (en) | 2006-07-03 | 2007-06-20 | identification system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610030642 DE102006030642A1 (en) | 2006-07-03 | 2006-07-03 | identification system |
DE102006030642.2 | 2006-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008003285A1 true WO2008003285A1 (en) | 2008-01-10 |
Family
ID=38569041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2007/001082 WO2008003285A1 (en) | 2006-07-03 | 2007-06-20 | Identification system |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102006030642A1 (en) |
WO (1) | WO2008003285A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011107812A2 (en) | 2010-03-01 | 2011-09-09 | Egis Gyógyszergyár Nyilvánosan Működő Részvénytársaság | Stabilized pharmaceutical composition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020105411A1 (en) * | 2000-04-26 | 2002-08-08 | Toru Maeda | Remote vehicle controller |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5532522A (en) * | 1994-06-06 | 1996-07-02 | Delco Electronics Corp. | Printed circuit reader/exciter coil for vehicle security system |
DE19842427C2 (en) * | 1998-09-16 | 2000-09-21 | Siemens Ag | Antenna for a transmitting and / or receiving unit of an anti-theft system of a motor vehicle |
DE19842705C2 (en) * | 1998-09-17 | 2000-12-07 | Siemens Ag | Antenna, in particular for an anti-theft protection system of a motor vehicle |
DE10202162B4 (en) * | 2002-01-22 | 2011-11-10 | Robert Bosch Gmbh | Safety system for a vehicle with a radio frequency antenna |
DE10215884A1 (en) * | 2002-04-11 | 2003-10-23 | Volkswagen Ag | Vehicle antenna change over device has device for switching first or second input terminal to output terminal, controller for driving switching device on basis of activity signal from vehicle device |
DE102004035621A1 (en) * | 2004-07-22 | 2006-03-16 | Feig Electronic Gmbh | Antenna arrangement for large coherent detection areas |
DE102004038837B4 (en) * | 2004-08-10 | 2008-09-25 | Continental Automotive Gmbh | Electronic anti-theft system with correlated transmit / receive antennas |
US7116214B2 (en) * | 2004-09-16 | 2006-10-03 | Lear Corporation | Circuit board assembly with integral antenna |
-
2006
- 2006-07-03 DE DE200610030642 patent/DE102006030642A1/en not_active Withdrawn
-
2007
- 2007-06-20 DE DE112007000063T patent/DE112007000063A5/en not_active Withdrawn
- 2007-06-20 WO PCT/DE2007/001082 patent/WO2008003285A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020105411A1 (en) * | 2000-04-26 | 2002-08-08 | Toru Maeda | Remote vehicle controller |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011107812A2 (en) | 2010-03-01 | 2011-09-09 | Egis Gyógyszergyár Nyilvánosan Működő Részvénytársaság | Stabilized pharmaceutical composition |
Also Published As
Publication number | Publication date |
---|---|
DE112007000063A5 (en) | 2008-08-07 |
DE102006030642A1 (en) | 2008-01-10 |
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