WO2016162631A1

WO2016162631A1 - System and method for securing against the theft of a vehicle equipped with an on-board computer and a diagnostic connector

Info

Publication number: WO2016162631A1
Application number: PCT/FR2016/050778
Authority: WO
Inventors: Thierry BOURRIEAU
Original assignee: Garage Bourrieau
Priority date: 2015-04-10
Filing date: 2016-04-05
Publication date: 2016-10-13
Also published as: EP3280622A1; FR3034732A1; FR3034732B1

Abstract

The invention relates to a system for securing against the theft of a vehicle (1) equipped with an on-board computer (10), said system comprising a diagnostic connector (11) connected to the on-board computer by means of a plurality of data wires (3) which can each be connected to the diagnostic connector (11) in a standard position, with at least one of the data wires (3) being connected to the diagnostic connector (11) in an altered position different from the standard position. The system comprises an adapter (4) having a first connector (41) coupled to a second connector (42) by means of a plurality of extension wires (403), each of the extension wires being connected: to the first connector in the position in which the data wires are connected to the diagnostic connector; and to the second connector in the standard position.

Description

System and method for securing against theft of a vehicle with an on-board computer and a diagnostic socket.

The field of the invention is that of the design and manufacture of vehicle accessories. More specifically, the invention relates to the design of a security system against the theft of a vehicle via a diagnostic socket of the vehicle.

Following the technological development of motorized vehicles, so-called embedded computing has become an essential component. The on-board computer of a vehicle includes data and parameters making it possible to establish diagnoses related to vehicle problems and to adjust electronic and / or mechanical malfunctions.

In parallel, national and international regulations have integrated into their requirements the standardization of connection sockets allowing access to embedded computing.

Professionals carrying out maintenance operations on such vehicles may use diagnostic tools that connect to the standard diagnostic plugs usually called "OBD plugs". Non-professionals have, for their part, the opportunity to buy solutions allowing them to connect to these diagnostic outlets to access the onboard computer of the vehicle through their computer device (computer, mobile phone,. ..).

Vehicle theft methods have evolved to accommodate the development and implementation of these diagnostic outlets. Indeed, a vehicle robbery technique called "mouse jacking" allows criminals to use for their benefit the presence of standardized diagnostic plugs installed permanently inside the vehicles.

This method first requires entering the vehicle interior and then reconfiguring the computer systems of the vehicle.

For example, in the case of a vehicle requiring a conventional mechanical key with a transponder, having previously noted the serial number of the vehicle visible on the windshield, the perpetrators may order from a partner dealer a blank mechanical key suitable for the vehicle, capable of triggering the mechanical unlocking of the doors. In another example, in a vehicle using a contactless starter card, the perpetrators similarly obtain a blank card and enter the vehicle using locksmith tools on the mechanism. locking the door (often hidden behind caches).

Once inside the vehicle, the perpetrators can simply connect a computer device to the on-board computer of the car via the diagnostic socket. The computer device then makes it possible to access the on-board computer of the vehicle and, with the aid of software, offers the possibility of reconfiguring the computer systems of the on-board computer. The reconfiguration of these systems makes it possible to pair the systems of the car with the new key (in particular with the transponder of the key) or the blank contactless card so that the latter are able to trigger the starting of the vehicle. The thief can then use his new key or card to start the vehicle and leave with it.

This flight technique is particularly popular with its users because it is quick to implement, it does not attract attention (the vehicle is opened by a conventional key and the use of computer equipment inside a vehicle is not alarming). In addition, this flight technique allows you to leave with an undegraded vehicle (no broken window, forced door, ...).

To counter this flight technique, the prior art proposes to install an anti-theft steering wheel lock rod in the vehicle when parked. This antitheft device consists of a rod trapping the steering wheel of the vehicle and preventing the proper use of the latter if it is not removed. The user of the vehicle then has an unlocking means, for example a dedicated key, to remove the antitheft cane.

A person wishing to seize the vehicle using the technique of "mouse jacking" must take care of the cane antitheft which greatly complicate his operation. Indeed, to remove the cane without having the corresponding means of unlocking, the operations required for withdrawal require time and are not discrete which alarm passersby.

This antitheft solution nevertheless has disadvantages. Indeed, such an antitheft bar is particularly bulky and must be stored somewhere in the vehicle when it is not used. In addition, this solution is not easy to implement and binding since it must be set up and removed each time the vehicle is used. Finally, if the user of the vehicle misleads his means of unlocking the antitheft cane, he can not himself use his vehicle.

The invention particularly aims to overcome these disadvantages of the prior art.

More specifically, the invention aims to provide a system and a method of securing a vehicle against a flight technique using a diagnosis of the vehicle.

The invention also aims to provide such a system and such a method that are easy to implement.

The invention also aims to provide such a system and such a method that is not binding for the user of the vehicle.

These objectives, as well as others that will appear later, are achieved thanks to the invention which has for object a system for securing against the theft of a vehicle having an on-board computer system, the system comprising a diagnosis socket at remains in a vehicle, the diagnostic socket being of the "OBD" type and being connected to the on-board computer via at least one pair of supply wires and a plurality of information wires each capable of to be connected to the diagnostic socket in a standardized position, characterized in that at least one of the information wires is connected to the diagnostic socket in a permuted position different from the normalized position, and in that the system comprises an adapter removable presenting:

- A first plug type "OBD" male, can be connected to the diagnostic socket; a second female "OBD" type socket, coupled to the first socket via at least one pair of connecting wires for extending the pair of supply wires and a plurality of extension wires of the information wires, each of the extension wires being connected:

on the first socket according to the connection position of the information wires on the diagnostic socket;

- on the second socket according to the normalized position;

and in that the supply leads (2) are connected in a normalized position to the diagnostic socket (1 1).

According to the principle of the invention, the permanent diagnosis of the vehicle is no longer compatible with diagnostic tools. To restore compatibility, it is necessary to use the dedicated adapter which has the correct permutation at the connection of its extension son.

During normal maintenance of the vehicle, it is then sufficient for its owner to provide the adapter so that the communication between the on-board computer of the vehicle and the diagnostic tool of the person performing the maintenance is performed correctly.

Thus, people who would try to reprogram the computer systems of the vehicle computer would encounter communication errors between their computer device used for reprogramming and on-board computer of the vehicle.

By wanting to proceed with such reprogramming and encountering these communication errors, these people would be either discouraged or tempted to continue their operation by wasting time trying to make their computer device work. By increasing the time spent trying to reprogram the vehicle, the system can take advantage of the technique of "mouse jacking" which is supposed to be quick to implement not to attract attention.

In a complementary manner, the invention is particularly easy to implement and does not require significant resources or a costly installation operation. Indeed, the means used to realize it are economical and easy to produce, and the intervention to be performed on the vehicle to equip it with the system is quick to achieve.

In addition, this solution is not binding for the vehicle owner. Indeed, it does not have to worry about the system during the current use of the vehicle and it must simply provide the adapter during maintenance.

Finally, by connecting the power supply son to the diagnostic socket in a standardized position, the computer device used during a flight attempt does not indicate a problem of connection at the power supply son. Also, possible risks of short circuit are thus avoided.

Preferably, each of the information son is connected to the diagnostic socket in a permuted position different from the normalized position.

According to an advantageous characteristic, a label indicating the presence of the system is applied to the vehicle. Thus, malicious people would be less inclined to try to steal the vehicle.

According to a first embodiment, the adapter is designed to be flexible, the position of the extension son can be modified.

With this embodiment, the permutation positions of the wires can be chosen by the person who installs the system in a vehicle. These permutations can thus remain at the discretion of the installer.

According to a second embodiment, the adapter is designed inviolable, the position of the extension son being fixed, and the system includes a permutation diagram indicating the permuted positions.

The installation of the system thus conceived can be carried out more quickly. Indeed, it is then sufficient for the installer to perform the only permutation of the connections of the diagnostic socket permanently to the embedded computer according to the permutation scheme.

The invention also relates to a method of securing against theft of a vehicle having an on-board computer and a socket permanent diagnosis, the diagnostic socket being connected to the on-board computer via at least one pair of supply wires and a plurality of information wires connected to the diagnostic socket in a standardized position;

characterized in that it comprises the following steps:

- Switching the connection of at least one information wire on the diagnostic socket of the normalized position to a permuted position different from the normalized position;

- realization of a removable adapter presenting:

a first socket that can be connected to the diagnostic socket;

a second plug coupled to the first tap via at least one pair of jumper wires for extending the pair of supply wires and a plurality of extension wires of the information wires, each of extension wires being connected:

- on the first socket according to the position of the connections of the information wires on the diagnostic socket;

- on the second socket according to the normalized position.

This method makes it possible to secure a vehicle against attempted theft by means of the "mouse jacking" technique. Indeed, as explained above, this method makes it possible to make the diagnosis of the vehicle permanently useless for people who do not have the removable adapter.

Moreover, because of the means it implements, this method is simple and economical to implement and allows to proceed quickly to securing the vehicle.

Advantageously, during the permutation step, each of the information wires is connected to the diagnostic socket at a permuted position different from the normalized position. According to the principle of the invention, the adapter obtained by the security method may have the characteristics described above or below of the security system adapter.

Other characteristics and advantages of the invention will emerge more clearly on reading the following description of a preferred embodiment of the invention, given by way of illustrative and nonlimiting example, and the appended drawings among which:

FIG. 1 is a schematic representation of the security system of a vehicle according to the invention;

FIG. 2 is a schematic representation of the principle of the method of securing a vehicle according to the invention; As illustrated in FIG. 1, the system according to the invention makes it possible to secure a vehicle 1.

This vehicle 1 has an on-board computer 10 and a diagnostic socket 1 1 which is a socket type "OBD" female. This type of plug is the subject of several regulations framing its characteristics and implementation parameters in a vehicle.

This diagnostic socket 1 1 is connected to the on-board computer 10 via a pair of supply wires 2 and a plurality of information wires 3.

According to the regulations, the power and information wires are supposed to be connected to the diagnostic socket in a standardized position. This standardized connection must enable the operational connection of a diagnostic device 6 which has a male diagnostic socket 60.

Specifically, an "OBD" socket has sixteen channels including two intended to serve as food. The information wires and the supply wires must thus be connected to specific channels in a standardized position that depends on the regulations, but also on the vehicle manufacturers and the vehicle. According to the principle of the invention, the security system comprises the diagnostic socket 1 1 permanently installed in the vehicle 1 and a removable adapter 4.

As shown in FIG. 1 and according to the preferred embodiment, each of the information wires 3 is connected to the diagnostic socket 1 1 permanently in a permuted position. Thus, according to the schematized example:

- the channel 1 (V1) of the socket is connected with the information wire b instead of the information wire transiting the data "a";

the channel 2 (V2) of the socket is connected with the information wire a instead of the information wire transiting the data "b";

- The channel 3 (V3) of the plug is connected with the information wire d instead of the information wire transiting the data "c";

- The channel 4 (V4) of the socket is connected with the information wire c instead of the information wire transiting the data "d". Thus designed, this diagnostic socket does not allow the diagnostic device 6 to communicate with the onboard computer 10. As explained above, people trying to reprogram the embedded computer to seize the vehicle will then encounter communication problems.

In addition, an "OBD" socket with up to fourteen channels available to transmit data, the number of permutation combinations available reaches more than eighty billion, making it difficult for malicious people to attempt to reconnect. the information threads in the right order.

To restore the communication between a diagnostic device 6 and the on-board computer 10, it is necessary to use the adapter 4.

This adapter has a first socket 41 and a second socket 42, these plugs being of the "OBD" type and being respectively a plug and a socket. The first tap and the second tap are coupled together through at least one pair of link wires 402 and a plurality of extension wires 403. The connection wires 402 make it possible to extend the pair of supply wires 2. According to the illustrated example, the supply wires 2 and the connecting wires are not connected in a permuted position and keep a connection in a normalized position. , in particular symbolized on the diagram by the channels named V8 and V9.

Referring to Figure 1, to allow the adapter to properly restore communications, each extension wire 403 is connected:

on the second socket 42 according to the normalized position (the extension wire transiting the data "a" on the channel 1, etc.);

on the first socket 41 according to the connection position of the information wires 3 on the diagnostic socket 1 1;

According to particular embodiments, the adapter 4 may be designed to be modular or tamper-proof and in the latter case, the system comprises a permutation scheme 5.

This permutation scheme allows the system installer to arrange the connections of the information wires 3 to the diagnostic socket 1 1 in order to respect the permuted positions selected during the actual manufacture of the adapter.

As illustrated by FIG. 2, the invention also relates to a method of securing against theft of a vehicle 1.

The vehicle 1 has an on-board computer 10 and a diagnostic socket 1 1 permanently installed. The diagnostic socket, which is a female "OBD" plug, is connected to the on-board computer via:

at least one pair of supply wires (not shown);

a plurality of information wires 3.

The information son 3 are in particular connected in a normalized position on the diagnostic socket. Thus, by using a diagnostic device 6 having a male diagnostic socket 60 complementary to the diagnostic socket 1 1, an operator can correctly access the on-board computer of the vehicle. The method prevents direct access to embedded computing.

Indeed, the method comprises a step 70 of permutation of the connection of at least one wire of information on the diagnostic socket of the normalized position to a permuted position different from the normalized position.

Thus, in a first case or only a diagnostic device 6 is used, access to embedded computing 10 is impossible.

The method also comprises a step 71 of producing a removable adapter 4 which, as described above, presents:

a first socket 41 compatible with the diagnostic socket 1 1 of the vehicle 1;

a second socket 42 compatible with a male diagnostic socket 60.

In making the adapter, the first receptacle 41 is coupled to the second receptacle 42 through at least one pair of lead wires (not shown) for extending the pair of power leads. The first socket 41 is also coupled to the second socket 42 via a plurality of extension wires 403. Each of these extension wires 403 are then connected to the first socket 41 according to the position of the wire connections. information on the diagnostic socket, which results from the step of permutation, and the second socket 42 according to the normalized position.

Thus, in a second or a diagnostic device 6 is used in cooperation with the adapter 4, the access to the on-board computer 10 can be correctly realized.

Claims

System for securing against theft of a vehicle (1) having an on-board computer (10), the system comprising a diagnosis socket (1 1) permanently in a vehicle, the diagnostic socket being of the "OBD" type female and being connected to the on-board computer via at least one pair of supply wires (2) and a plurality of information wires (3) each capable of being connected to the diagnostic socket (1). 1) according to a standardized position,

characterized in that at least one of the information wires (3) is connected to the diagnostic socket (1 1) in a permuted position different from the normalized position,

and in that the system comprises a removable adapter (4) having:

a first plug (41) of the male "OBD" type, connectable to the diagnostic socket (1 1);

a second socket (42) of the female "OBD" type, coupled to the first tap via at least one pair of connecting wires (402) for extending the pair of supply wires (2) and a plurality of extension wires (403) of the information wires (3), each of the extension wires being connected:

- on the second socket according to the normalized position; and in that the supply leads (2) are connected in a normalized position to the diagnostic socket (1 1).

Security system according to claim 1, characterized in that each of the information wires (3) is connected to the diagnostic socket (1 1) in a permuted position different from the normalized position. Security system according to any of the preceding claims, characterized in that the adapter (4) is designed to be flexible, the position of the extension wires (403) being modifiable.

Security system according to any one of claims 1 and 2, characterized in that the adapter (4) is designed inviolable, the position of the extension son (403) being fixed,

and in that the system includes a permutation scheme (5) indicating the permuted positions.