CA2419697A1 - Non intrusive passive anti-theft systems with inductive and receptive printed circuit board antenna - Google Patents
Non intrusive passive anti-theft systems with inductive and receptive printed circuit board antenna Download PDFInfo
- Publication number
- CA2419697A1 CA2419697A1 CA002419697A CA2419697A CA2419697A1 CA 2419697 A1 CA2419697 A1 CA 2419697A1 CA 002419697 A CA002419697 A CA 002419697A CA 2419697 A CA2419697 A CA 2419697A CA 2419697 A1 CA2419697 A1 CA 2419697A1
- Authority
- CA
- Canada
- Prior art keywords
- receptive
- inductive
- circuit board
- printed circuit
- passive anti
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
- F02N11/0807—Remote means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Description
NON INTRUSIVE PASSIVE ANTI-THEFT SYSTEMS WITH INDUCTIVE AND
RECEPTIVE PRINTED CIRCUIT BOARD ANTENNA
FIELD OF THE INVENTION
The present invention relates to vehicle remote starting systems, and more particularly to electronic circuitry for bypassing the electronic anti-theft system of a vehicle to permit starting of the engine from a remote location.
BACKGROUND OF THE INVENTION
Anti-theft systems have been installed by vehicle manufacturers on most new vehicles for some time now. One such known anti-theft system involves the use of an electronic key. The system reties on the wireless transmission of an ID
code from a transponder embedded in the grip of an ignition key, thus providing the electronic key, in order to start the vehicle. In use, when the electronic key is inserted into the ignition cylinder of the vehicle, the ID code is read by a short range transceiver located near the ignition cylinder. The transceiver then communicates the ID code to a vehicle electronic control unit for validating and enabling engine starting. This type of anti-theft system has been installed on new vehicles by vehicle manufacturers such as Ford, GM, Honda, etc.
However, such anti-theft systems causes major problems to remote starter manufacturers and installers trying to retrofit a remote starting system.
Indeed, they must find a way to bypass the verification routine of the vehicle control unit or mimic the ID code. This problem is compounded by the fact that each vehicle manufacturer uses its own proprietary anti-theft system cooperating with an electronic key.
Known in the art, there is known Canadian patent application No.
RECEPTIVE PRINTED CIRCUIT BOARD ANTENNA
FIELD OF THE INVENTION
The present invention relates to vehicle remote starting systems, and more particularly to electronic circuitry for bypassing the electronic anti-theft system of a vehicle to permit starting of the engine from a remote location.
BACKGROUND OF THE INVENTION
Anti-theft systems have been installed by vehicle manufacturers on most new vehicles for some time now. One such known anti-theft system involves the use of an electronic key. The system reties on the wireless transmission of an ID
code from a transponder embedded in the grip of an ignition key, thus providing the electronic key, in order to start the vehicle. In use, when the electronic key is inserted into the ignition cylinder of the vehicle, the ID code is read by a short range transceiver located near the ignition cylinder. The transceiver then communicates the ID code to a vehicle electronic control unit for validating and enabling engine starting. This type of anti-theft system has been installed on new vehicles by vehicle manufacturers such as Ford, GM, Honda, etc.
However, such anti-theft systems causes major problems to remote starter manufacturers and installers trying to retrofit a remote starting system.
Indeed, they must find a way to bypass the verification routine of the vehicle control unit or mimic the ID code. This problem is compounded by the fact that each vehicle manufacturer uses its own proprietary anti-theft system cooperating with an electronic key.
Known in the art, there is known Canadian patent application No.
2,291,306 (BAYEUR et al.) which discloses an electronic pass-key module which can be used to retrofit a remote starting system. However, such module is somewhat intrusive as it requires the installer to cut cables in the anti-theft system in order to install the pass-key module.
There is therefore a need for an electronic system being able to bypass the anti-theft system using an electronic key that would not be as intrusive as in the prior art and that would not require cutting cables.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a non intrusive passive anti-theft system (PATS) with an inductive receptive and receptive printed circuit board (PCB) antenna for emulating an electronic ignition key to communicate an ID code to a vehicle electronic control unit and bypassing an anti-theft system.
The invention as well as its numerous advantages will be better understood by reading of the following non-restrictive description of preferred embodiments made in reference to the appending drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic bloc diagram of a non intrusive passive anti-theft system (PATS) with an inductive and receptive printed circuit board (PCB) antenna according to a preferred embodiment of the present invention.
Figure 2 is a top view of the inductive and receptive printed circuit board (PCB) antenna shown in Figure 1.
Figure 3 is a top view of an inductive and receptive printed circuit board (PCB) antenna connected to a passive anti-theft system (PATS) according to a preferred embodiment of the present invention.
Figure 4 is a schematic bloc diagram showing the principal operation steps of a passive anti-theft system (PATS) for a Honda anti-theft system according to a preferred embodiment of the present invention.
Figure 5 is a circuit diagram of a passive anti-theft system (PATS) for a Honda anti-theft system according to a preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring to Figures 1 to 3, the passive anti-theft system (PATS) is made of an inductive and receptive printed circuit board (PCB) antenna that receives and transmits signals from and to a vehicle. These signals once received by the antenna are forwarded by a transmitting coil to the transponder which contains a unique numeric information. After having relieved enough energy the transponder retransmits the same numerical information the same way it got it. The numerical information is now applied (sent) in reverse by the receiving coil and then by the
There is therefore a need for an electronic system being able to bypass the anti-theft system using an electronic key that would not be as intrusive as in the prior art and that would not require cutting cables.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a non intrusive passive anti-theft system (PATS) with an inductive receptive and receptive printed circuit board (PCB) antenna for emulating an electronic ignition key to communicate an ID code to a vehicle electronic control unit and bypassing an anti-theft system.
The invention as well as its numerous advantages will be better understood by reading of the following non-restrictive description of preferred embodiments made in reference to the appending drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic bloc diagram of a non intrusive passive anti-theft system (PATS) with an inductive and receptive printed circuit board (PCB) antenna according to a preferred embodiment of the present invention.
Figure 2 is a top view of the inductive and receptive printed circuit board (PCB) antenna shown in Figure 1.
Figure 3 is a top view of an inductive and receptive printed circuit board (PCB) antenna connected to a passive anti-theft system (PATS) according to a preferred embodiment of the present invention.
Figure 4 is a schematic bloc diagram showing the principal operation steps of a passive anti-theft system (PATS) for a Honda anti-theft system according to a preferred embodiment of the present invention.
Figure 5 is a circuit diagram of a passive anti-theft system (PATS) for a Honda anti-theft system according to a preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring to Figures 1 to 3, the passive anti-theft system (PATS) is made of an inductive and receptive printed circuit board (PCB) antenna that receives and transmits signals from and to a vehicle. These signals once received by the antenna are forwarded by a transmitting coil to the transponder which contains a unique numeric information. After having relieved enough energy the transponder retransmits the same numerical information the same way it got it. The numerical information is now applied (sent) in reverse by the receiving coil and then by the
3 inductive antenna (emitter) and finally to the anti-theft system of the vehicle in order to be able to bypass it for a few seconds in order to start the vehicle from a distance.
Referring to Figures 4 and 5, when the unit is under supply, it proceeds to an initialization function necessary for its operation. This function sets the pic, the comparators and adjusts every timer value. Then, it runs through its memory to see if it had passed the quality test and if it had been already programmed.
In this case, it will be ready to transmit the key code recorded. Finally, if the unit has either been programmed or not, it always checks if the program switch is activated. This activation will give the possibility for the unit to get to another mode corresponding to the vehicle wanted and to record a new key in order to be able to start the vehicle from a distance and activate various functions.
Although preferred embodiments of the present invention have been described in detail herein and illustrated in the accompanying drawings, it is to be understood that the invention is not limited to these precise embodiments and that various changes and modifications may be effected therein without departing from the scope or spirit of the present invention.
Referring to Figures 4 and 5, when the unit is under supply, it proceeds to an initialization function necessary for its operation. This function sets the pic, the comparators and adjusts every timer value. Then, it runs through its memory to see if it had passed the quality test and if it had been already programmed.
In this case, it will be ready to transmit the key code recorded. Finally, if the unit has either been programmed or not, it always checks if the program switch is activated. This activation will give the possibility for the unit to get to another mode corresponding to the vehicle wanted and to record a new key in order to be able to start the vehicle from a distance and activate various functions.
Although preferred embodiments of the present invention have been described in detail herein and illustrated in the accompanying drawings, it is to be understood that the invention is not limited to these precise embodiments and that various changes and modifications may be effected therein without departing from the scope or spirit of the present invention.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002419697A CA2419697A1 (en) | 2003-02-25 | 2003-02-25 | Non intrusive passive anti-theft systems with inductive and receptive printed circuit board antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002419697A CA2419697A1 (en) | 2003-02-25 | 2003-02-25 | Non intrusive passive anti-theft systems with inductive and receptive printed circuit board antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2419697A1 true CA2419697A1 (en) | 2004-08-25 |
Family
ID=32873348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002419697A Abandoned CA2419697A1 (en) | 2003-02-25 | 2003-02-25 | Non intrusive passive anti-theft systems with inductive and receptive printed circuit board antenna |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2419697A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112550218A (en) * | 2020-12-14 | 2021-03-26 | 江苏惠通集团有限责任公司 | Remote control method and intelligent key for unlocking vehicle, and control method and device |
-
2003
- 2003-02-25 CA CA002419697A patent/CA2419697A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112550218A (en) * | 2020-12-14 | 2021-03-26 | 江苏惠通集团有限责任公司 | Remote control method and intelligent key for unlocking vehicle, and control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |