CN101197068A - Frequency selection in system for remote activation of vehicle functions - Google Patents
Frequency selection in system for remote activation of vehicle functions Download PDFInfo
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- CN101197068A CN101197068A CNA2007101882998A CN200710188299A CN101197068A CN 101197068 A CN101197068 A CN 101197068A CN A2007101882998 A CNA2007101882998 A CN A2007101882998A CN 200710188299 A CN200710188299 A CN 200710188299A CN 101197068 A CN101197068 A CN 101197068A
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Abstract
The invention relates to a method for improving the remote activation of an automotive vehicle by determining the frequency of an activation signal based on sampled ambient noise conditions. The selected frequency can be transmitted to a passive remote control device in a challenge signal. The remote control device responds with an activation signal at the selected frequency.
Description
The cross reference of related application
The application requires the U.S. Provisional Application No.60/861 that submitted on November 30th, 2006,838 rights and interests.
Background technology
The present invention relates generally to and be used for the passive system that passenger stock obtains function.
Vehicle remote control activation system (remote vehicle activation system), for example remote keyless enters (RKE) system, with regard to character can be initiatively or passive.In active system, activate switch on the teletransmitter (remote transmitter) or button so that carry out desirable distant control function by the operator usually, for example pin or open car door.In passive entry system, do not require that usually the operator activates so that carry out desirable distant control function.
In the typical passive activation system of vehicle, be provided with and be commonly called " Intelligent key " (fob) or the remote transceiver of " card " (remote transceiver).This Intelligent key or card can be used as separate unit and are connected to key chain, also can be the head part or the analogs of firing key.Intelligent key or the card automatically with wireless signal for example radio frequency (RF) signal be transmitted into vehicle, so that carry out any function in the various vehicle remote control functions, for example pin and/or open car door, start and/or stop vehicle motor, open and/or close vehicle window, open inside and/or outside car light, go up and/or fall the open car top, open and/or close tailstock luggage case and similar functions.
The passive activation system of vehicle generally includes the transceiver on the electronic control module that is installed in the vehicle.The vehicle transceiver control module is arranged to communicate by letter with various vehicle fittings, so that carry out multiple function.For example, vehicle transceiver and/or control module can be arranged to communicate by letter with door lock mechanism, so that response is unblanked request and opened car door, perhaps can be arranged to communicate by letter with vehicle motor, so that responding engine starts request and starting engine.
For example, sensor or switch can be set on door handle, so that the request unblanked is provided.In this embodiment, when car owner's Body contact door handle, for example by grasping or holding handle, sensor just provides the indication of this contact to the vehicle transceiver control module.Receive after this indication that the vehicle transceiver control module automatically sends the passive interrogating signal (challenge signal) that enters.Interrogating signal is once reception, and remote transceiver Intelligent key or the card that is carried by the user determines whether this interrogating signal is effective usually, if effectively, just automatically send response, this response comprises Intelligent key unique identification code usually.The vehicle transceiver control module is compared identification code with the Intelligent key sign indicating number of authorizing, if find their couplings, just control module produces control signal, in this embodiment, this control signal is sent to door lock mechanism to be used to open car door.
Whether in carrying out the passive mobilizing function of vehicle, it is specific passive when entering function to carry out in decision, measures the position that (that is, determining the position) carry the user of Intelligent key and has help.For example, when activating door handle and open the door request with generation, if the Intelligent key of authorizing in the vehicle outside, lock should be opened.Otherwise car door can be unblanked and opened by anyone of vehicle outside, only because of the authorized user at vehicle interior.As another embodiment, if the user activates the driven engine starting switch of vehicle interior, have only the authorized user at vehicle interior, engine just is unlocked.
The problem that the passive activation system of present vehicle exists is the susceptibility to interference or noise.For example, other wireless systems may with send to Intelligent key from vehicle or start work under the identical or approaching frequency of one or two signal to the signal of vehicle (if these signals send) from Intelligent key under different frequency.For example, these wireless systems can comprise other Intelligent key or card, tire pressure monitoring system, remote security system (remote security system), long-range garage door opener (remote garage door opener) and analog.
Summary of the invention
The present invention solves the problem that signal disturbs by using based in the selected a plurality of multifrequency channels of environmental baseline of sampling at least one.
Description of drawings
Fig. 1 is a synoptic diagram of realizing the vehicle of embodiment of the present invention;
Fig. 2 has showed the passive according to embodiments of the present invention block diagram that enters module;
Fig. 3 is the block diagram of having showed according to Intelligent key of the present invention or card;
Fig. 4 has showed the block diagram of the passive activation system of vehicle according to embodiments of the present invention;
Fig. 5 has showed the process flow diagram of vehicle operating according to embodiments of the present invention; And
Fig. 6 has showed the process flow diagram of Intelligent key operation according to embodiments of the present invention.
Embodiment
With reference to figure 1, shown the synoptic diagram of realizing the vehicle of embodiment of the present invention.Vehicle 10 has interior zone 11 and perimeter 12.The passive electronic module (passive entry electronicmodule) 13 that enters is connected to inside antenna 14, and for example, inside antenna 14 can be installed to meter panel of motor vehicle 15.Module 13 also can be connected with exterior antenna 16, and exterior antenna 16 is preferably mounted on the external structure, and for example the side-view mirror shell 17, or are installed in the door, as door 20.
Car door 20 can provide the segment boundary between interior zone 11 and the perimeter 12.Door handle 21 comprises activator switch and lock actuating mechanism (lock actuator mechanism), and activator switch and lock actuating mechanism both are connected to module 13.By rising door handle 21, the user sends the request of opening door, the Intelligent key that this request is authorized module 13 inquiries.Engine start switch 22 also can be arranged on the panel board 15 that is connected to module 13, so that send the user's request that starts vehicle motor.For example, also can support various other mobilizing functions, as pinning and/or open other car doors, open and/or close vehicle window, open inner car light and/or outside car light, rising and/or reduce the open car top, opening and/or close tailstock luggage case and similar functions.
Refer now to Fig. 2, shown and showed the passive according to embodiments of the present invention block diagram that enters module.The passive module 13 that enters comprises transceiver 23 and transceiver 24.Alternatively, can use the single transceiver of conversion between inside and outside transmission/reception.The passive module 13 that enters also comprises controller 26, and controller 26 has ROM (read-only memory) (ROM) 27, and ROM (read-only memory) (ROM) 27 can comprise one or more software programs of being carried out by controller 26 and by the data of controller 26 accesses.Electrically programmable read only memory (EPROM) 28 is connected to controller 26, to be used to store nominal data (calibration) and other data as be known in the art.EPROM 28 also can preserve the software of being carried out by controller 26.
Wave point (wireless interface) 23,24 needs not to be the transceiver that is connected to inside antenna and exterior antenna.For example, one or two in the wireless device 23,24 can be send-only device or the device that receives only.In addition, wireless device 23,24 can be worked in different frequency ranges, or with dissimilar wireless signal work.
Refer now to Fig. 3, shown the block diagram of showing according to Intelligent key of the present invention or card.Intelligent key 25 comprises the Intelligent key controller 36 that is connected to antenna 38 by transceiver 37.Alternatively, can utilize independent receiver and transmitter to adapt to the difference of used frequency.Receive by transceiver 37 by the passive interrogating signal (interrogation signal) that enters module broadcasting of vehicle, and detect by controller 36.If interrogating signal is effective (that is, meeting vehicle and the function discerned), controller 36 sends response message, and response message is broadcast to the passive module that enters of vehicle via transceiver 37 and antenna 38.Receive during the interrogating signal, S meter (SSI) module 39 can be determined the signal intensity that received, and generates the signal intensity indication.The signal intensity indication can be included in by in the response message of controller 36 according to predetermined messaging protocol assembling.
Refer now to Fig. 2, Intelligent key transceiver 37 and one or more vehicle modules wireless device 23,24 can be operated to send and/or to receive under a plurality of carrier frequency.This allows the passive activation system of vehicle according to the invention to select the channel of low noise degree.For example, the one or more transceivers 23,24 in vehicle modules 13 can be determined noise level to environmental sampling under the frequency of being paid close attention to.Then, vehicle modules controller 26 can be selected one or more in these frequencies, for the usefulness of communicating by letter with Intelligent key 25.Controller 26 can be notified the one or more interrogating signals that send to Intelligent key 25 from vehicle modules 13 and use which or a plurality of frequency.
Refer now to Fig. 4, shown and showed the block diagram of the passive activation system of vehicle according to embodiments of the present invention.Vehicle modules 13 comprises low frequency (LF) transmitter 50 and ultrahigh frequency (UHF) receiver 52.Intelligent key 25 comprises LF receiver 54 and UHF transmitter 56.Alternatively, one or two in UHF transmitter 56 and the UHF receiver 52 can be the UHF transceiver.
When the requesting activation function, inquiry sends to Intelligent key 25 with the form of LF signal 62.Then, Intelligent key 25 responds by sending UHF signal 74.In order to make system not be subjected to artificial interference and The noise, can change the UHF channel of operation as required from other sources.Vehicle modules is by detecting the RSSI level from UHF receiver 52 periodically, determines which or a plurality of channel are (not have noise) clearly or more clear or the most clear.Controller 26 will be selected one or more channels based on the neighbourhood noise degree.This selection can obtain the most quiet channel.Alternatively, this selection can obtain a channel or a plurality of channel that noise level is lower than threshold values.This selection can be based on the channel search that carries out with specific priority ranking, till finding suitable channel or a plurality of channel.This order can be based on vehicle location or based on the Given information of relevant vehicle.In case selected a channel or a plurality of channel, Intelligent key 25 is received the notice of selection in the LF inquiry stage.When Intelligent key 25 is realized LF when inquiry, its decoding LF signal 62, and be transformed into by the indicated one or more channels clearly of vehicle modules 13.Therefore, can improve the possibility of vehicle reception from the UHF response of Intelligent key 25.
The invention provides translated channel feasible, fast with the mode of useful power.In order to save the power of Vehicular battery, vehicle modules controller 26 can indicate UHF receiver 52 to check one or more channels clearly in the mode of all period interval.
Miscellaneous as known in the art any loop be can use, UHF receiver 52 and UHF transmitter 56 realized.For example, can use ADF7012 multichannel ISM wave band FSK/GFSK/OOK/ASK transmitter, realize transmitter 56 from Massachusetts, United States Analog Devicesof Norwood company.This transmitter comprises N fractional phase locked loop (fractional-N PLL), can be phaselocked loop (PLL) loading data value, so that frequency of operation is set between 75MHz and the 1GHz.
Alternatively, or except above embodiment, the multichannel LF receiver in Intelligent key can be used to avoid the LF noise source.In addition, native system also can be used for LF/RF/RF challenge response system and LF/RF system.
Refer now to Fig. 5 and 6, shown and showed the process flow diagram of method of operating according to embodiments of the present invention.A those of ordinary skill of this area can be understood, and it is sequential operation that the operation of being showed there is no need.Can change sequence of steps within the spirit and scope of the present invention, and shown order is a logical statement herein.The method of being showed also can be realized by any combination of hardware, software, firmware and analog.The present invention surmounts any concrete embodiment, and shows that in order to be easy to the form with sequential flowchart shows embodiment.
Refer now to Fig. 5, shown and showed the process flow diagram of vehicle operating according to embodiments of the present invention.Check, to determine whether and to take a sample to surrounding environment at noise, as in module 100.This inspection can be based on periodically carrying out.Alternatively, or except periodic test, after detecting some incident, for example ask specific function, can check.Then, can take a sample to the neighbourhood noise degree in one or more channels, as in module 102.Which then, can determine to use or a plurality of channel, as in module 104 based on measured noise level.Can use the final outcome channel, unless be necessary to change channel.This needs can be based on to the sampling of this interchannel noise degree, the control signal that is received, from signal or analog that Intelligent key received.
Finally, receive the request of mobilizing function, as in module 106.Send at least one inquiry from vehicle, as in module 108.The information of the employed one or more channels of specified response channel preferably is provided in inquiry.In the inquiry of one or more appointments, receive response, as in module 110.This response preferably includes the Intelligent key identifier or authorization by direction uses other data of wishing function.Check, whether correct to determine identifier or other data, as in module 112.For example, can check the identifier that is received, carry out above inspection by the tabulation of contrast authorization identifiers.If the data authorization by direction that is received uses this function, just can carry out this function, as in module 114.
In one embodiment of the invention, can send a plurality of inquiries, as in module 108 from vehicle.For example, if in certain hour not response inquiry in the cycle, inquiry can be resend.In addition, use one or more different characteristics of transmitting from first, carry out at least one and resend, for example carrier frequency, modulation technique, encoding scheme, channel selection, identifier and analog.
Refer now to Fig. 6, shown and showed the process flow diagram of Intelligent key operation according to embodiments of the present invention.Interrogating signal is received, as in module 120.This interrogating signal can be used to wake up the electronic equipment in the Intelligent key.Which determine to use or a plurality of channel to send, as in module 122.It is this that determine can be based on the information that receives in interrogating signal.Intelligent key sends response, as in module 124.This response can comprise sender identification symbol or other information that whether are allowed in order to the function of determining to be asked by vehicle.
Although showed and described embodiment of the present invention, these embodiments are not that be intended to show and describe institute of the present invention might form.But the vocabulary that uses in the instructions is descriptive vocabulary rather than words of limitation, and should be appreciated that and can carry out various changes and without departing from the spirit and scope of the present invention.
Claims (17)
1. passive activation system that is used for motor vehicle, it comprises:
Intelligent key, it can be operated to receive interrogating signal and to respond under the frequency of described interrogating signal in a plurality of frequencies and send activation signal; And
Activator appliance, it is installed on the described motor vehicle, described activator appliance can operate with select based on transmission quality in described a plurality of frequency a frequency, the indication of institute's selected frequency is sent to described Intelligent key, sends described interrogating signal and receive described activation signal under institute's selected frequency.
2. passive activation system as claimed in claim 1, wherein said activator appliance is selected a frequency in described a plurality of frequency by under each frequency in described a plurality of frequencies neighbourhood noise being taken a sample.
3. passive activation system as claimed in claim 2, wherein said activator appliance utilize described institute selected frequency to receive described activation signal subsequently, unless the neighbourhood noise under the described institute selected frequency surpasses a threshold values.
4. passive activation system as claimed in claim 1, wherein said Intelligent key comprise LF receiver and UHF transmitter, and wherein said activator appliance comprises LF transmitter and UHF receiver.
5. passive activation system as claimed in claim 4, wherein said activator appliance utilizes described LF transmitter to send described interrogating signal, described Intelligent key utilizes described LF receiver to receive described interrogating signal, described Intelligent key utilizes described UHF transmitter to send described activation signal, and described activator appliance utilizes described UHF receiver to receive described activation signal.
6. passive activation system as claimed in claim 1, wherein said activator appliance send the described indication of described institute selected frequency in described interrogating signal.
7. passive activation system as claimed in claim 1, if the described activation signal that is wherein received comprises the identifier of the Intelligent key of previous identification, described activator appliance is further operated to activate vehicle functions.
8. passive activation system as claimed in claim 1, wherein the inquiry that is sent is first inquiry, described activator appliance further operation responds described first activation signal of inquiring to determine not receive, and sends at least one additional query with at least one feature that is different from described first inquiry.
9. the method for the function of a remotely activated motor vehicle, described method comprises:
Send first signal from described motor vehicle, described first signal is indicated a channel in described a plurality of channel based on the neighbourhood noise that is detected under at least one channel in a plurality of channels;
Receive described first signal in telechiric device, described telechiric device can be operated to move discretely with described motor vehicle;
In described telechiric device, transmitter is set, in indicated described channel, to send based on described first signal that is received;
Utilize indicated described channel from described telechiric device, to send secondary signal;
On described motor vehicle, receive described secondary signal; And
Based on the described secondary signal that is received, activate the described function of motor vehicle.
10. method as claimed in claim 9, wherein said first signal sends with first frequency, and described secondary signal sends with the second frequency that is different from described first frequency.
11. method as claimed in claim 10, wherein said first frequency are in described LF wave band, and described second frequency is in described UHF wave band.
12. method as claimed in claim 9, wherein said first signal are the interrogating signals that response sends to the request of described function and from described motor vehicle.
13. method as claimed in claim 9, wherein said secondary signal comprises the telechiric device identifier, and wherein activates described function and be based on described telechiric device identifier match known identifiers.
14. method as claimed in claim 9, wherein said telechiric device utilize indicated described channel to continue to send signal, up to receiving till the described telechiric device of indication uses the signal of a different channels in described a plurality of channel.
15. a motor vehicle, it comprises:
Transmitter;
Receiver;
Mobile equipment by the control signal operation; And
With described transmitter, described receiver and described mobile equipment control of communication logical block, described steering logic unit can operate with:
(a) utilize described receiver to the noise samples in the environment;
(b) come to determine working channel the channel according to the noise of being taken a sample from a plurality of;
(c) utilize described transmitter to send the channel signal of the determined channel of indication;
(d) utilize determined channel to receive activation signal from described receiver; With
(e) generate described control signal based on the described activation signal that is received.
16. motor vehicle as claimed in claim 15, wherein said transmitter is worked at the LF wave band, and works under the different frequency of wherein said a plurality of channel in the UHF wave band.
17. motor vehicle as claimed in claim 15, wherein said channel signal are parts that sends to the interrogating signal of telechiric device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86183806P | 2006-11-30 | 2006-11-30 | |
| US60/861,838 | 2006-11-30 | ||
| US11/868,634 | 2007-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101197068A true CN101197068A (en) | 2008-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101882998A Pending CN101197068A (en) | 2006-11-30 | 2007-11-30 | Frequency selection in system for remote activation of vehicle functions |
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| CN (1) | CN101197068A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667872A (en) * | 2009-11-13 | 2012-09-12 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | Method for checking an access authorization to a function of a motor vehicle |
| CN104851162A (en) * | 2014-02-14 | 2015-08-19 | 通用汽车环球科技运作有限责任公司 | Method for optimizing anti-collision and latency for PEPS passive response |
| CN106304311A (en) * | 2015-06-24 | 2017-01-04 | 李尔公司 | Pinning of leaving extends the method for tele-control system communication range during controlling function |
| CN110291568A (en) * | 2017-02-10 | 2019-09-27 | 金泰克斯公司 | Utilize the individual channel training of trainable transceiver and multiple functions of control remote-control device |
| CN112435372A (en) * | 2020-11-18 | 2021-03-02 | 铁将军汽车电子股份有限公司 | Keyless system and induction identification method thereof |
-
2007
- 2007-11-30 CN CNA2007101882998A patent/CN101197068A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667872A (en) * | 2009-11-13 | 2012-09-12 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | Method for checking an access authorization to a function of a motor vehicle |
| CN102667872B (en) * | 2009-11-13 | 2015-05-20 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | Method for checking an access authorization to a function of a motor vehicle |
| CN104851162A (en) * | 2014-02-14 | 2015-08-19 | 通用汽车环球科技运作有限责任公司 | Method for optimizing anti-collision and latency for PEPS passive response |
| US10275961B2 (en) | 2014-02-14 | 2019-04-30 | GM Global Technology Operations LLC | Method for optimizing anti-collision and latency for PEPS passive response |
| CN106304311A (en) * | 2015-06-24 | 2017-01-04 | 李尔公司 | Pinning of leaving extends the method for tele-control system communication range during controlling function |
| CN106304311B (en) * | 2015-06-24 | 2019-11-05 | 李尔公司 | It leaves and extends the method for tele-control system communication range during lockking control function |
| CN110291568A (en) * | 2017-02-10 | 2019-09-27 | 金泰克斯公司 | Utilize the individual channel training of trainable transceiver and multiple functions of control remote-control device |
| CN112435372A (en) * | 2020-11-18 | 2021-03-02 | 铁将军汽车电子股份有限公司 | Keyless system and induction identification method thereof |
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