CN102363422B - Keyfob and exchange the method for signal between it and motor vehicle side control appliance - Google Patents
Keyfob and exchange the method for signal between it and motor vehicle side control appliance Download PDFInfo
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- CN102363422B CN102363422B CN201110183694.3A CN201110183694A CN102363422B CN 102363422 B CN102363422 B CN 102363422B CN 201110183694 A CN201110183694 A CN 201110183694A CN 102363422 B CN102363422 B CN 102363422B
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- 238000000034 method Methods 0.000 title claims description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 73
- 238000004891 communication Methods 0.000 claims abstract description 9
- 230000003213 activating effect Effects 0.000 claims abstract description 6
- 230000008054 signal transmission Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 206010049207 Adactyly Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
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- 230000000977 initiatory effect Effects 0.000 description 1
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- 238000012797 qualification Methods 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- 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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Abstract
The keyfob (2) of a kind of release for activating machine motor-car/lock and/or start/parking function, comprise and control device (16-18,20) code device (19) connecting and the coil mechanism (4) connecting with this control device, this coil mechanism is for carrying out radio communication with the aerial coil mechanism (10-12) of motor vehicle side control appliance (1). Described coil mechanism (4) comprises at least three coils directed on three direction in spaces. These coils like this and control device (16-18,20) connect, make this control device can in the time receiving by coil mechanism (4) first signal being sent by motor vehicle side aerial coil mechanism (10-12), determine which in coil received first signal with maximum received field strength. The secondary signal that will transmit from keyfob (2) to motor vehicle side control appliance (1) subsequently by control device by received the transmitting of one of that coil of first signal or those coils with maximum received field strength.
Description
Technical field
The present invention relates to a kind of release for activating machine motor-car/lock and/or start/parking functionKeyfob. This keyfob is also often called as electron key or ID transmitter.In addition the invention still further relates to a kind of for this keyfob and motor vehicle side control appliance itBetween exchange the method for signal.
Background technology
The keyfob that starts described type has and control such as microcontroller conventionallyCode device and transmitter-receiver device that device connects. Especially this control device is by bandHave the receiving system of coil mechanism connect with the aerial coil mechanism of motor vehicle side control appliance intoRow radio communication. The aerial coil mechanism of motor vehicle side control appliance and the reception of keyfobSignal transmission between coil mechanism typically occurs in LF frequency band, for example 125 kilo hertzs.
Conventional keyfob is also for passive access function or passive start-up performance. For handleSignal transfers to motor vehicle side control appliance from keyfob, and keyfob is usually included inThe transmitter of work in UHF frequency band. Corresponding receiver connects with motor vehicle side control appliance.For example, in the time there is no key or passive access motor vehicle, motor vehicle side control appliance passes through antennaCoil mechanism is sent to the wake-up signal in IF frequency band the coil mechanism of keyfob, subsequentlyKeyfob passes back to motor vehicle side control appliance by its UHF transmitter. At thisCan comprise in the dialogue of multiple twocouese signal exchange, code exchange also occurs. If identificationGo out to authorize the code entering, open the lock that can realize motor vehicle access.
In addition known keyfob can also be used in automobile burglar framework. For this reason, toolThere is the keyfob of coil mechanism to be arranged in the predetermined place of interior of motor vehicles, for example, be incorporated intoIn corresponding socket. In motor vehicle side, be positioned with another coil mechanism at this spigot, this is anotherOne coil mechanism is to the coil mechanism signal transmission in keyfob, and again receives by keyThe answer signal that remote controller sends by its coil mechanism. This fixed in being scheduled in order to realizeSignal exchange in position and between the coil of arranging directly adjacent to each other, transponder operated pattern alsoKnown, wherein not only can be first coil from from the coil of motor vehicle side to keyfobMechanism's signal transmission, can also transmit in addition essential energy, thereby keyfob can generateAnswer signal also transmits this answer signal in the opposite direction.
This keyfob is to key is distant for the shortcoming of the known application of automobile burglarControl device must directly be arranged near motor vehicle lateral coil mechanism, must comprise in addition one reallyFixed position (orientation), just can make between motor vehicle side control appliance and keyfob thusThe transfer of data of twocouese has enough quality.
Summary of the invention
The technical problem that will solve of the present invention is to provide a kind of keyfob through improvement,This keyfob even without intended orientation in precalculated position and directly in the control of motor vehicle sideNear the coil mechanism of equipment, also can communicate with motor vehicle side control appliance.
According to the present invention, this technical problem solves by the keyfob with following feature:According to the key of the release for activating machine motor-car of the present invention/lock and/or start/parking functionRemote controller comprises the code device connecting with control device and the coil plane connecting with this control deviceStructure, this coil mechanism is for carrying out channel radio with the aerial coil mechanism of motor vehicle side control applianceLetter, wherein, the coil mechanism of keyfob comprises that at least three are determined on three direction in spacesTo coil. At this, the orientation of coil, compared with its geometry of oligodactyly and orientation, more refers toThe direction of its maximum receiving sensitivity. These coils connect with control device like this, make this controlDevice processed receives and is sent out by motor vehicle side aerial coil mechanism at the coil mechanism by keyfobPenetrate first signal time can determine which in coil received first with maximum received field strengthSignal. At this, second letter that will transmit from keyfob to motor vehicle side control appliance subsequentlyNumber by control device by received that coil of first signal or those with maximum received field strengthThe transmitting of one of coil. The secondary signal that will transmit from keyfob to motor vehicle side control appliancePreferably include the code that generates and show mandate by code device.
The technical problem that will solve of the present invention can also be by having the method solution of following featureCertainly: according to of the present invention for the release for activating machine motor-car/lock and/or start/stopBetween the keyfob of function and motor vehicle side control appliance, exchange in the method for signal, whereinKeyfob has the code device connecting with control device and the line connecting with this control deviceLoop mechanism, this coil mechanism is for carrying out nothing with the aerial coil mechanism of motor vehicle side control applianceLine communication, and wherein the coil mechanism of keyfob comprises that at least three at three direction in spacesThe coil of upper orientation, first believes from the aerial coil mechanism transmitting first of motor vehicle side control applianceNumber. Then first signal is received by the coil mechanism of keyfob, wherein, is filled by this controlPut described in mensuration which coil at least three coils and received the first letter with maximum signal strength signal intensityNumber. Transmit subsequently secondary signal from keyfob to motor vehicle side control appliance, wherein, theBinary signal by received with maximum signal that coil of first signal or those coils itOne launches. Preferably by code device generating code, and be introduced in secondary signal.
The present invention is based on this thought, directed in different spaces direction by least threeCoil can reduce directional dependence to the signal transmission between motor vehicle and keyfob orPerson says and realizes direction independence. Thus circuit used can analogy in other side transmitting meritUnder rate and receiving sensitivity, can be with respect to traditional keyfob that only uses a coil,Distance between aerial coil mechanism and the keyfob of enlarger motor-car side, for example, expand toThe distance of about 10 to 15 centimetres. Therefore, keyfob only need to be come by its operating personnelRest near the space of motor vehicle side aerial coil mechanism, wherein, the orientation of keyfobOr location only has slight influence or no longer includes impact. Motor vehicle side aerial coil mechanism for example canTo be arranged near startup/stop button, thereby operating personnel can rest on keyfobBefore this start button, wherein, for example, after first signal and secondary signal exchange, activate promptingOperating personnel can start the indicator lamp of operation start button now.
In a kind of preferred embodiment, keyfob is characterised in that, coil mechanism comprisesThree coils directed in three orthogonal intersection space directions. That is to say the side of peak responseTo being arranged in described three orthogonal direction in spaces. Self-evident, these three coils are at structureMake and do not need to be separated from each other completely; Also may relate to the coil with multiple taps, described manyThe coil segment corresponding shaping of individual tap. By using three orthogonal directed coils, utilize minimumThe coil windings of quantity realizes direction independence as much as possible.
According in keyfob of the present invention preferred embodiment, first signalReceive and secondary signal be transmitted in for automobile burglar and with electrical steering locking system ELV(ElektronischeLenkungsverriegelung) under the framework of the control appliance dialogue connecting, enterOK. In the advantageous modification of this keyfob, control device configures like this, makesThis control device be received in by three orthogonal directed coils with for controlling motor vehicleAfter the wake-up signal transmitting under the framework of the motor vehicle side control appliance dialogue of access, determine withThe value corresponding to median of three signal strength signal intensities of these three coils, thereby on the basis of this valueOn can estimate the distance between motor vehicle side aerial coil mechanism and keyfob. Real at thisExecute in mode, will there is on three direction in spaces the coil mechanism of directed coil extralyAdvantage makes full use of in other function without in key or passive access system framework. Based onThree direction independence that receive the median that goes out of calculated signals make to estimate motor vehicle side antenna lineDistance between loop mechanism and keyfob becomes possibility. This range estimation for example can beThe control device internal implementation of keyfob, or also can be in motor vehicle side by control applianceImplement, wherein, the median being calculated by keyfob under latter event is at another signalUnder transport frame, be sent to motor vehicle side control appliance. This range estimation has improved access systemThe security of system, for example, can prevent so-called relay station attack (Relay-Station-Attack).
According to designing in a kind of advantageous modification of keyfob of the present invention, key is distantControl utensil has accumulator, and this accumulator connects with coil mechanism like this, and this accumulator is passed throughCharge with first signal transmission the energy that received by coil mechanism, and this accumulator like thisConnect with control device, make stored energy be used to generate secondary signal. For example useCapacitor is as accumulator. In this preferred improvement project, even when keyfobWhen battery is too weak for generating secondary signal, also can comprise first signal and secondThe dialogue of signal. Keyfob preferably as for the motor vehicle side of automobile burglar or ELVThe responder that control appliance communicates carrys out work. By using line directed in three directionsCircle, the orientation that generally speaking can not rely on keyfob is transmitted maximum energy fluence.Therefore select to have the coil of high received field strength and can cause storing in addition energy as transmitting coilThe optimization of amount is used.
The transmission that it is pointed out that secondary signal herein after receiving first signal like thisIn the short time, carry out, make to set out thus, keyfob keeps its orientation substantially.The flow process occurring in sort signal dialogue conventionally greatly faster than keyfob in the time that it movesMechanical movement flow process.
Brief description of the drawings
Introduce in detail the present invention by the preferred embodiment shown in accompanying drawing below, wherein:
Fig. 1 is the schematic diagram with the motor vehicle side control appliance of keyfob of the present invention.
Detailed description of the invention
Fig. 1 shows in schematic form one and has motor vehicle side control appliance 1 and keyThe setting of remote controller 2. Control appliance 1 is expressed as unique square frame. At some embodimentsIn, control appliance 1 also can comprise the multiple assemblies that are arranged in interior of motor vehicles different location.Control appliance is for example controlled several functions, as the automobile burglar of electrical steering locking system (ELV),The release of car door lock and tailgate flap lock or lock and the startup of engine and stopping. At this,The control module of controlling these functions can be arranged in the assembly for implementing function separately. CauseThis, the part that of for example control appliance 1 controlled automobile burglar is just preferably mounted at steering columnIn near ELV assembly.
Fig. 1 also shows a kind of key remote control that is often also known as electron key or ID transmitterDevice 2. Keyfob 2 is carried by driver or the operating personnel of motor vehicle conventionally, for exampleBe placed in pocket. Keyfob 2 is carried out radio communication with motor vehicle side control appliance 1,Namely, preferably pass through radio signal.
Motor vehicle side control appliance 1 comprises the distinct interface 24-27 having for connecting communications componentElectronic control unit ECU8 (ECU=ElectronicControlUnit). These communication setPart comprises LF base station 21, and this LF base station 21 is by full bridge driver 22 and aerial coil 10Connect, with emitting electromagnetic wave in LF frequency band. LF base station 21 is by universal input/output GIOInterface 26 (GIO=GeneralPurposeInput/Output) is connected with ECU8. According to byThe signal that ECU8 exports by GIO interface 26, LF base station 21 is by full bridge driver 22Generate armed modulation signal in LF frequency band by aerial coil 10.
Motor vehicle side control appliance 1 also comprises 125 kilo hertzs of LF drivers 23, these 125 kilo hertzsDriver 23 connects with ECU8 with another GIO interface 27 on the one hand, on the other hand with antennaCoil 10 and two other aerial coil 11 and 12 connect. According to defeated by GIO interface 27The signal going out, these 125 kilo hertzs of LF drivers 23 generate by aerial coil 10,11 and 12The modulation LF signal of output.
Motor vehicle side control appliance 1 finally also comprises that the UHF with UHF reception antenna 28 connectsReceive device 9. UHF receiver 9 is by GIO interface 24 and serial peripheral equipment interface SPI interface 25(SPI=SerialPeripheralInterface) be connected with ECU8.
Keyfob 2 comprises coil mechanism 4, and this coil mechanism 4 comprises three at three mutuallyThe coil of orientation in orthogonal intersection space direction. Each of these three coils is with respect to key remote controlThe shell of device 2 is directed in predetermined direction, and wherein this direction indication coil has maximum receptionThat direction in space of sensitivity. If the electromagnetic signal being orientated on a specific direction appliesOn keyfob 2, this electromagnetic signal generates and receives in each of three coilsSignal, wherein three signal strength signal intensities that receive signal depend in the electromagnetic field of the signal that rigidly connects receiptsThe orientation separately of keyfob. Three mutually orthogonal orientations of coil of coil mechanism 4 makeIn the case of the signal being applied by any direction all one straight through in described three coils at leastA coil ensures enough receptions.
Coil mechanism 4 connects with control module 3. This control module 3 comprise microcontroller 16,Connect with described microcontroller and be used to this microcontroller 16 to store the EEPROM of programming data17, vehicle anti-theft control device 18, code device 19 and three-dimensional (3D) are waken receiver 20 up.In addition keyfob 2 also comprises the UHF transmitter 5 with UHF transmitting antenna 29. UHFTransmitter 5 connects with control module 3 by bidirectional bus. Last keyfob 2 also comprisesPower supply 6, particularly battery. In addition be also connected with signal with control module 3 and show LED7.
Introduce some functions of this keyfob below.
When driver wishes to use keyfob 2 when removing automobile burglar, he can makeKeyfob 2 closely rests on the control of motor vehicle side and establishes (for example at the most 10 centimetres)Before the standby transmitting coil 10 connecting. Transmitting coil 10 is for example arranged in startup/parking keyerNear and/or ELV assembly in. Then motor vehicle side control appliance 1 and keyfob 2 itBetween initiate radio communication. ECU8 has the LF base of full bridge driver 22 by interface 26 instructionsStand and 21 in LF frequency band, send prearranged signals by aerial coil 10. This signal is applied to keyOn the coil mechanism 4 of spoon remote controller 2, wherein, according to the spatial orientation of keyfob 2,The different reception signal of described three coil output intensities. Control module 3 receiving coil mechanisms 4Reception signal, and utilize microcontroller 16 to be forwarded to vehicle anti-theft control device 18. ?This, it is the request signal about automobile burglar that control module 3 identifies this. In addition control device 3Three coils of magnetic test coil mechanism 4 which/which coil with maximum received field strength received byThe signal that aerial coil 10 is launched. Store corresponding information by microcontroller. Then microcontroller16 generate answer signal in conjunction with vehicle anti-theft control device 18 and code device 19, and this replys letterNumber should pass back to motor vehicle side control appliance 1. This signal comprises qualification keyfob 2Code, then should make control appliance releasing automobile burglar or release turn to the identification of this codeLocking. The aerial coil 10 of motor vehicle side control appliance 1 and the coil mechanism of keyfob 2Signal exchange between 4 in LF frequency band represents by double-head arrow 13. Not only shape of control module 3Become answer signal, it also determines which in three coils of coil mechanism 4 this signal should pass throughIndividual/which coil is back to control appliance. At this, the starting point of control logic is, supposesReceiving keyfob 2 in the time period very short between this signal and plan transmitting answer signal does not haveThere is occurrence positions variation or only have slight shift in position. Based on this reason, control module 3Determine that answer signal is by receiving before that coil of described reception signal with maximum received field strengthTransmitting. The transmitted signal that can ensure thus many as far as possible shares also arrives at aerial coil 10. ByAgain led LF base station 21 and signal content of the signal that aerial coil 10 receives passes through GIOInterface 26 is forwarded to ECU8, and this ECU8 assesses this signal, and discharges and turn in the time that code is correctTo locking, and remove thus automobile burglar.
Process and receive signal, generate answer signal and launch by the selected coil of coil mechanism 4The necessary energy of answer signal can obtain from battery 6. If for this this battery tooA little less than, can arrange like this, make keyfob 2 comprise another accumulator, particularly electric capacityDevice, this accumulator is by being transmitted in the time that coil mechanism 4 transmits signal by aerial coil 10Energy charges. In order to utilize as much as possible these energy, whole three of coil mechanism 4The energy of receiving coil is all used to accumulator or capacitor charging. Show that LED7 is for example usedFor operating personnel show when received enough energy, reply letter thereby can introduce transmittingNumber necessary step. Keyfob is rested on the attached of aerial coil 10 by operating personnel for this reasonClosely. Once LED7 is switched on, user just knows that he can remove automobile burglar and initiation is openedMoving process. So he for example operates the start button connecting with motor vehicle side control appliance 1.Then in LF frequency band, there is above-mentioned communication.
Tool is advantageous in addition, has the coil plane of coil directed on three direction in spacesStructure 4 can be used to the keyless or passive system that enters through improvement. When carrying keys distantWhen the driver of control device 2 is positioned at vehicle exterior, this passive entered function (passiveentry)Conventionally be initiated by wake-up signal, this wake-up signal is by connecting with motor vehicle side control appliance 1Aerial coil transmitting. In traditional key remote control of only having a receiving coil arranging for this reasonIn device, the receiving intensity in the time receiving wake-up signal not only depends on aerial coil and key remote controlDistance between device, but also depend on the random orientation of keyfob. Therefore traditionalIn keyfob can not based on receive intensity estimation signal keyfob apart from aerial coilHow far have. In keyfob 2 according to the present invention, can be by three of coil mechanism 4In three signal receiving strengths of coil, derive permission estimation motor vehicle side aerial coil and key distantThe median (or total value) of distance between control device 2. For this object, at control module 3In 3D be set wake receiver 20 up, this 3D wakes receiver 20 up not only for receiving by motor-drivenThe wake-up signal that car side control appliance sends, but also allow the distance between estimation and motor vehicle.By means of this possibility, can improve the security entering. Therefore, for example only has the key of working asIn remote controller 2, the assessment of wake-up signal is shown to keyfob is located immediately near motor vehicleWhen conclusion, just can carry out being caused by this wake-up signal for obtaining the dialogue of access authorization.
In the embodiment shown in Fig. 1, for the transmitting antenna coil 10 of automobile burglar andTwo other transmitting antenna coil 11 and 12 is also used to without key or passive startup system.As mentioned above, aerial coil 10 is located immediately near start button. Described two other antenna lineCircle 11 and 12 proper site that are arranged in motor vehicle, thus can be from by three aerial coils10, the signal of 11 and 12 sequential transmission obtains in the received signal strength of these keyfob 2 sidesTo the conclusion about keyfob 2 stop place at that time in motor-vehicle inside space. ThisIn also can prove to have on three direction in spaces directed coil coil mechanism 4 have excellentMore property, because this coil mechanism 4 allows not rely on each orientation of keyfob in spaceThe distance from keyfob to each aerial coil 10,11 and 12 is estimated on ground. Based on estimatingThe distance by 2 to three aerial coils 10,11 and 12 of keyfob of calculating can be determined and stopsStay place. If keyfob 2 is positioned at the predetermined space of interior of motor vehicles, for example, drivingIn the space of top, the person of sailing seat, discharge startup system, i.e. ato unit. Otherwise stopEngine start.
Claims (17)
1. for the keyfob of the release of activating machine motor-car/lock and/or start/parking function(2), comprising:
The code device (19) connecting with control device (16-18,20) and
With the coil mechanism (4) that described control device (16-18,20) connects, this coil planeStructure (4) is for carrying out with the aerial coil mechanism (10-12) of motor vehicle side control appliance (1)Radio communication,
Wherein, the coil mechanism (4) of described keyfob (2) comprises that at least three threeThe coil of orientation on individual direction in space,
Wherein, described coil connects with described control device (16-18,20) like this, makes instituteState control device can the coil mechanism by described keyfob (2) (4) receive byWhen the first signal of motor vehicle side aerial coil mechanism (10-12) transmitting, determine in described coilWhich has received described first signal with maximum received field strength,
Wherein, subsequently will be from described keyfob (2) to described motor vehicle side control appliance (1)The secondary signal transmitting is passed through with maximum received field strong cohesiveness by described control device (16-18,20)Receive the transmitting of one of that coil of described first signal or those coils.
2. keyfob according to claim 1, is characterized in that, described will be from instituteState the secondary signal bag that keyfob (2) transmits to described motor vehicle side control appliance (1)Draw together the code generating by code device (19).
3. keyfob according to claim 1 and 2, is characterized in that, described keyThe coil mechanism (4) of spoon remote controller (2) comprises three orientations in three orthogonal intersection space directionsCoil.
4. keyfob according to claim 3, is characterized in that, described the first letterNumber reception and described secondary signal be transmitted in for automobile burglar and with electrical steering lockingUnder the framework of the control appliance dialogue that device connects, occur.
5. keyfob according to claim 4, is characterized in that, described control dressPut (16-18,20) and configure like this, described control device is being connect by described three coilsBe received in the framework with the motor vehicle side control appliance dialogue for controlling the access to described motor vehicleAfter the wake-up signal of lower transmission, determine the median with three signal strength signal intensities of these three coilsCorresponding value, thus can on the basis of this value, estimate described motor vehicle side aerial coil machineDistance between structure (10-12) and described keyfob (2).
6. keyfob according to claim 1 and 2, is characterized in that, describedOne signal and described secondary signal are launched in LF frequency band.
7. keyfob according to claim 1 and 2, is characterized in that,
Described keyfob (2) has accumulator, described accumulator like this with described coil planeStructure connects, and described accumulator is passed through with described first signal transmission and by described coil mechanismThe energy receiving charges, and
Described accumulator connects with described control device (16-18,20) like this, makes storedEnergy be used to generate described secondary signal.
8. keyfob according to claim 7, is characterized in that, described key is distantControl device (2) is configured to and replying that the motor vehicle side control appliance of automobile burglar communicatesDevice.
9. for the key remote control of the release at activating machine motor-car/lock and/or start/parking functionBetween device and motor vehicle side control appliance, exchange the method for signal, wherein, described keyfobThere is the code device connecting with control device and the coil mechanism connecting with described control device,Described coil mechanism is for carrying out wireless with the aerial coil mechanism of described motor vehicle side control applianceCommunication, and wherein, the coil mechanism of described keyfob comprises that at least three at three skiesBetween directed coil in direction, wherein:
Aerial coil mechanism by described motor vehicle side control appliance launches first signal,
Receive described first signal by the coil mechanism of described keyfob, wherein, by instituteState control device measure described at least three coils which coil connect with maximum signal strength signal intensityReceive described first signal, and
Transmit secondary signal from described keyfob to described motor vehicle side control appliance subsequently,Wherein, by described secondary signal by received that of described first signal with maximum received field strengthThe transmitting of one of individual coil or those coils.
10. method according to claim 9, is characterized in that, by described code dressPut generating code, and described code is incorporated in described secondary signal.
11. according to the method described in claim 9 or 10, it is characterized in that, described the first letterNumber reception and described secondary signal be transmitted in for automobile burglar and with electrical steering lockingUnder the framework of the control appliance dialogue that device connects, carry out.
12. methods according to claim 11, is characterized in that, when described key remote controlWhen device is positioned at described vehicle exterior, described coil mechanism with for control to described motor vehicleThe framework of motor vehicle side control appliance dialogue of access under exchange other signal.
13. methods according to claim 12, is characterized in that,
Described other signal comprises the letter that wakes up by the transmitting of described motor vehicle side aerial coil mechanismNumber,
The coil mechanism of described keyfob comprises three orientations in three orthogonal intersection space directionsCoil, and
After receiving described wake-up signal by described three coils, true by described control deviceThe value corresponding to median of three signal strength signal intensities of fixed and described three coils, wherein, at thisOn the basis of value, estimate between described motor vehicle side aerial coil mechanism and described keyfobDistance.
14. methods according to claim 11, is characterized in that, when described key remote controlWhen device is positioned at described interior of motor vehicles, described coil mechanism with for controller motor vehicle engineUnder the framework of the motor vehicle side control appliance dialogue starting, exchange other signal.
15. methods according to claim 14, is characterized in that, described motor vehicle side skyLine coil mechanism has one for filling for automobile burglar and with electrical steering locking with describedPut under the framework of control appliance dialogue of connection and launch described first signal and receive described the second letterNumber aerial coil and at least two other aerial coils, wherein, by whole aerial coils withUnder the framework of the motor vehicle side control appliance dialogue starting for control engine, launch other letterNumber.
16. according to the method described in claim 9 or 10, it is characterized in that, by described firstSignal and described secondary signal are launched in LF frequency band.
17. according to the method described in claim 9 or 10, it is characterized in that,
By the accumulator connecting with described coil mechanism of described keyfob by with described theOne signal transmission the energy being received by described coil mechanism charge, and
Stored energy is used for generating described secondary signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010017493.9 | 2010-06-21 | ||
| DE201010017493 DE102010017493A1 (en) | 2010-06-21 | 2010-06-21 | Key remote controller for triggering e.g. unlocking/locking functions of motor car, has control devices transmitting signal to motor car-side control device through coils that receive signals from motor car-side transmitter coils |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102363422A CN102363422A (en) | 2012-02-29 |
| CN102363422B true CN102363422B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110183694.3A Expired - Fee Related CN102363422B (en) | 2010-06-21 | 2011-06-21 | Keyfob and exchange the method for signal between it and motor vehicle side control appliance |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102363422B (en) |
| DE (1) | DE102010017493A1 (en) |
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| DE102015121736A1 (en) * | 2015-12-14 | 2017-06-14 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Vehicle key for passive entry systems and associated method |
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| EP3370082B1 (en) * | 2017-03-02 | 2020-12-09 | Nxp B.V. | Processing module and associated method |
| CN108109244B (en) * | 2017-12-28 | 2021-05-25 | 重庆集诚汽车电子有限责任公司 | PEP (polyethylene glycol) locking method of PEPS (Passive entry Passive Start) controller |
| CN112829714A (en) * | 2021-03-08 | 2021-05-25 | 苏州摩贝斯电子科技有限公司 | Relay attack defense method, PEPS system and vehicle |
| CN113200020B (en) * | 2021-05-14 | 2022-09-06 | 北京旗偲智能科技有限公司 | Method for unlocking vehicle door lock, vehicle control cloud platform and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004015168A (en) * | 2002-06-04 | 2004-01-15 | Denso Corp | Receiving antenna, core, and portable device |
| CN1752390A (en) * | 2004-09-21 | 2006-03-29 | 株式会社东海理化电机制作所 | Smart card key |
| CN1866788A (en) * | 2005-05-16 | 2006-11-22 | 三洋电机株式会社 | Radio communication system and radio communication device |
| CN101635387A (en) * | 2009-08-18 | 2010-01-27 | 施学林 | Three-dimensional low-frequency antenna coil |
-
2010
- 2010-06-21 DE DE201010017493 patent/DE102010017493A1/en not_active Ceased
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2011
- 2011-06-21 CN CN201110183694.3A patent/CN102363422B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004015168A (en) * | 2002-06-04 | 2004-01-15 | Denso Corp | Receiving antenna, core, and portable device |
| CN1752390A (en) * | 2004-09-21 | 2006-03-29 | 株式会社东海理化电机制作所 | Smart card key |
| CN1866788A (en) * | 2005-05-16 | 2006-11-22 | 三洋电机株式会社 | Radio communication system and radio communication device |
| CN101635387A (en) * | 2009-08-18 | 2010-01-27 | 施学林 | Three-dimensional low-frequency antenna coil |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010017493A1 (en) | 2011-12-22 |
| CN102363422A (en) | 2012-02-29 |
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