JP6060761B2 - Vehicle antitheft device - Google Patents

Description

  The present invention relates to a vehicle antitheft device, and more particularly to a vehicle antitheft device that prevents a thief from easily adding a portable device for starting an engine and replacing immobilizer-related parts.

  Conventionally, it is known to use an immobilizer system in combination with a Burglar system (unauthorized intrusion detection system) as a vehicle antitheft device. Patent Document 1 discloses an anti-theft device that prevents an intruder from stealing a vehicle when an unauthorized intrusion into the vehicle is detected following the detection of unauthorized unlocking of a door as the unauthorized intrusion detection system. It is disclosed. Further, in Patent Document 2, as the above immobilizer system, it is necessary to notify or confirm to an authorized user when additional registration of a portable device or replacement of immobilizer-related parts is performed, so that a thief can add a portable device for starting an engine and An anti-theft device that prevents replacement of immobilizer related parts is disclosed.

JP 2006-347207 A JP 2005-289157 A

  In recent years, unauthorized portable devices have been registered, and there have been cases where vehicles are stolen using this portable device. The above-mentioned burglar system is usually controlled so that the alarm state is canceled when the engine start by a legitimate portable device is confirmed by the immobilizer system. Therefore, if an unauthorized mobile device is additionally registered by the theft quickly, and the engine is started using the mobile device, even if the anti-theft function by the burglar system is activated, it is immediately released. Therefore, there is a problem that the surroundings do not notice the theft.

  That is, there is a possibility that registration or the like of a portable device may be performed only by notifying or confirming the user such as the anti-theft device disclosed in Patent Document 2 without being aware of the theft by the surroundings. Further improvements are required.

  The present invention is based on the above knowledge, and in order not to easily perform registration of the portable device by the theft, etc., by forcibly extending the time required for the above work, the work completion is delayed, In addition, by extending the operation time of the anti-theft function of the Burglar system, theft by the theft can be easily seen from the surroundings so that the theft itself can be abandoned and theft can be prevented in advance. An object is to provide a prevention device.

The invention according to claim 1 detects the unauthorized intrusion into the vehicle and communicates with the first crime prevention means for sounding an alarm sound and the portable device possessed by the user, and when a predetermined authentication state is established. 2nd crime prevention means which permits operation of the in- vehicle device of the vehicle only, and the first crime prevention means stops the sounding state after the predetermined authentication state in the second crime prevention means is established. a theft prevention device for a vehicle 1 and a second security means is associated, said second security means, when the password associated with the vehicle is input, establish the predetermined authentication condition Permission means for allowing a new portable device to be added as a portable device for the vehicle, and when a password associated with the vehicle is input , reception of the input password is delayed for a predetermined time Let the Permitting means is the new had Do portable device, the timing to allow the addition of a portable unit for the vehicle, have a delay means for delaying the predetermined time, the first to the predetermined time has elapsed The present invention is characterized in that it is configured to maintain an alarm sounding state by the crime prevention means.

According to this, the delay means in the second crime prevention means can delay the addition of the portable device for the vehicle and the establishment of authentication using this by delaying the acceptance of the input password for a predetermined time. Accordingly, the blowing state of the first crime prevention means due to unauthorized intrusion can be extended. In this way, it is possible to delay the establishment of authentication necessary for the operation of the in-vehicle device and to extend the alarm sounding state by the first crime prevention means. The possibility of being seen increases and it has the effect of giving up the theft.

Further, according to this, even if the password associated with the vehicle is obtained illegally by delaying the timing of completion of acceptance of the password associated with the vehicle by a predetermined time, the registration of the portable device for the vehicle and its The establishment of authentication using a portable device can be delayed. As a result, it is possible to continue the sounding state by the first crime prevention means, and the possibility that the theft by the theft is seen from the outside increases, which has the effect of giving up the theft.

Further, the invention according to claim 2 is the invention according to claim 1, wherein the operation of the in-vehicle device permits the operation of the engine, and the second security means is provided for the portable device for the vehicle. It is a smart start system that permits engine start by authentication.

According to this, the establishment of the authentication state using the new portable device necessary for engine operation can be delayed by delaying the time required for adding the portable device for the vehicle by a predetermined time. In addition, by continuing the blowing state by the first crime prevention means for a predetermined time, the theft by the theft is likely to be seen from the outside, and the engine operation by the theft and the escape on board the vehicle Has the effect of giving up.

Further, the invention according to claim 3 is the invention according to claims 1 to 2 , wherein the second crime prevention means further performs a sounding notification that the authentication state is established after the predetermined authentication state is established. It has a mechanism.

  According to this, after a predetermined operation is performed in the second crime prevention means, a sounding notification is given, so that if the predetermined operation is a theft by the theft, the theft act is externally covered even after the predetermined operation is completed. It becomes easy to see and has an effect of further increasing the anti-theft effect.

  According to the present invention, by delaying the establishment of the authentication by the second crime prevention means, the blowing state of the first crime prevention means can be extended, and the blowing state continues for a predetermined time. The possibility of being seen from is increased, and the theft can be abandoned.

It is a system diagram showing the configuration of the present invention. It is a flowchart explaining the antitheft mechanism of this invention.

  FIG. 1 shows a vehicle antitheft device according to an embodiment of the present invention. This antitheft device includes an unauthorized intrusion detection control unit 10 (first crime prevention means) and an immobilizer control unit 5 (second crime prevention means). ).

  The immobilizer control unit 5 is a unit that controls the immobilizer system, and includes an engine start control unit 6 and a smart keyless control unit 7. The smart keyless control unit 7 communicates with the portable device 1 carried by the occupant, collates the ID code stored in advance in the smart keyless control unit 7 with the ID code of the portable device 1, and uses the result as an engine. Tell the start control unit 6. If the ID code stored in the smart keyless control unit 7 matches the ID code of the portable device 1, the engine start control unit 6 issues an engine start command to the engine starter 11. On the other hand, if the ID codes of the two do not match, an engine start command is not issued to the engine starter 11 and the engine is not started.

  The portable device authentication method in the immobilizer control unit 5 will be described in detail.

  The smart keyless control unit 7 has a plurality of portable device ID codes stored in advance. For example, the main portable device M and the sub portable device S are initially set as regular portable devices. Both the portable device identification codes a and b are registered in the smart keyless control unit 7 with the identification code as the portable device identification code a and the identification code of the sub portable device S as the portable device identification code b. When the smart keyless control unit 7 receives the identification code from the portable device 1, the smart keyless control unit 7 determines whether or not the portable device is genuine based on the portable device identification code. That is, the portable device is genuine depending on whether the received portable device identification code matches one of the portable device identification codes a or b registered in the smart keyless control unit 7 mounted on the vehicle. It is determined whether or not.

  When the smart keyless control unit 7 determines that the portable device 1 is normal, the engine start control unit 6 sets the vehicle engine to a startable state, and transmits a start signal to the engine starter 11 by a predetermined operation of the occupant. It is configured.

  The predetermined operation of the occupant means that the starter switch is turned on when the occupant carrying the portable device rotates an engine starting knob (not shown), or a push switch (not shown) by the occupant. This means that the start switch is pressed.

  Since the engine start control unit 6 does not allow the engine start unless it receives an engine start command signal from the smart keyless control unit, the immobilizer control unit 5 uses an engine other than a user who has a regular portable device in the portable device authentication system. This has the effect of suppressing starting.

  Here, a plurality of portable devices 1 such as the main portable device M and the sub portable device S are prepared for the vehicle and can be newly registered, and the smart keyless control unit 7 and the engine start can be registered. Usually, parts related to the control unit 6 are exchanged. Therefore, the smart keyless control unit 7 has permission means 14 that can release a security state and add a new portable device and immobilizer-related parts when a predetermined condition is satisfied. Details on the release of the security state, the addition of a new portable device and the replacement of related parts, etc. will be described later.

  The unauthorized intrusion detection control unit 10 includes an unauthorized intrusion detection unit 8 that detects unauthorized entry into the vehicle interior and an alarm device 9 that sounds an alarm when the intrusion detection unit 8 detects an intrusion.

  The intrusion detection unit 8 is connected to a camera 2 provided inside or outside the vehicle, an intrusion sensor 3 provided inside the vehicle, and an unauthorized unlocking detection means 4 for detecting unauthorized unlocking of the door.

  The camera 2 is provided inside or outside the vehicle, images a person approaching the vehicle or a person entering the vehicle, and sends the captured information to the unauthorized intrusion detection unit 8.

  The intrusion sensor 3 detects unauthorized entry of an intruder into the vehicle. Specifically, an intruder is detected by an infrared sensor, and an intruder is detected by a change in load applied to a sheet or a floor by a load sensor.

  The unauthorized unlocking detection means 4 detects unauthorized unlocking of the door of an automobile, which is not based on the regular portable device 1. For example, when the door of the vehicle is locked by auto-locking, unauthorized unlocking other than unlocking using a regular portable device is detected, and the detected information is sent to the intrusion detection unit 8. As a specific example of this “illegal unlocking”, unlocking by breaking a door or window can be raised.

  When the unauthorized intrusion detection unit 8 detects an intrusion into the vehicle based on the information from the camera 2, the intrusion sensor 3, and the unauthorized unlock detection means 4, the alarm device 9 emits an alarm sound and threatens the intruder. At the same time, it is notified that there has been an unauthorized intrusion into the vehicle.

  In addition, when the engine start detection sensor 12 detects that the engine is in a starting state, the unauthorized intrusion detection unit 8 stops the alarm device 9 from sounding an alarm sound.

  The engine start detection sensor 12 receives a signal from the engine starter 11 to determine the start start state of the engine, and when the start of the engine is determined, transmits it to the unauthorized intrusion detection unit 8.

  Next, a method for registering a new portable device in the vehicle with respect to the smart keyless control unit 7 will be described. The same procedure can be used when parts related to the smart keyless control unit 7 and the engine start control unit 6 can be replaced.

The security state of the smart keyless control unit 7 is canceled to allow additional registration of a new portable device. In order to cancel the security state, one of the keys stored in the smart keyless control unit 7 is stored. It reads the password a, it is necessary to enter a password B to be the password a paired.

  First, the security release device 20 is connected to the smart keyless control unit 7, and one password A stored in the smart keyless control unit 7 is read. Thereafter, communication with the server 30 is performed using the security release device 20, and the password B paired with the password A is obtained through communication with the server 30. When the obtained password B is input to the smart keyless control unit 7 via the security release device 20 and the acceptance of the password B is completed in the smart keyless control unit 7, the permission means 14 newly sends the password B to the smart keyless control unit 7. Additional portable devices are allowed.

  When a new portable device is registered with the smart keyless control unit 7, there is no problem as long as it is registered by an authorized user. However, when a new portable device is registered by a thief, this new portable device is used. Because the theft can start the engine and take the vehicle away, it is necessary to prevent the theft from registering a new portable device.

  In the present invention, among the above-described series of methods for adding portable devices, provision of delay means 15 for delaying the completion of acceptance of the password B in the smart keyless control unit 7 by a predetermined time can prevent the registration of a new portable device by the theft. It is characterized by.

  This will be described in detail based on the flowchart of FIG.

  First, it is detected by the immobilizer control unit 5 whether or not a door opening operation has been performed by a regular portable device (step S1).

  If YES is determined in S1, the security release device 20 is connected to the smart keyless control unit 7 (step S2), and the password A for releasing the security state of the immobilizer control unit 5 is read from the smart keyless unit 7 (step S2). S3). Thereafter, the read password A is input to the server 30 (step S4), and the password B as a pair of the password A is obtained from the server 30 (step S5). A password is registered in the server 30 based on a predetermined rule. When the password A is input, the password B based on the predetermined rule can be obtained.

  Input the password B obtained to the smart keyless control unit 7 using the security release device 20 (step S6). When the password B is authenticated in the smart keyless control unit 7, the security is released in the immobilizer control unit 5 and permitted. By means 14, it is possible to add a new portable device and immobilizer related parts.

  The smart keyless control unit 7 has a delay means 15, and the authentication delay unit does not complete the reception of the password B for a predetermined time after the password B is input (step S7), but delays the completion of the reception for the predetermined time. After that, the acceptance of the password B is completed (step S8). By having the delay means 15 having such a function, the timing at which a new portable device can be registered is delayed.

  Next, when the acceptance of the password B is completed, the security of the smart keyless control unit 7 is released (step S9), and a notification that the security has been released is given to the outside (step S10). An additional registration operation of a new portable device 1 becomes possible with respect to the smart keyless control unit 7 (step S11). When the additional registration operation of the new portable device 1 is completed (step S12), the engine can be started using the new portable device (step S13).

  On the other hand, when it is determined No in Step 1, since the door opening operation is not performed by a regular portable device, it is assumed that there has been an unauthorized entry into the vehicle, and the alarm device 9 of the Burglar control unit 10 starts to sound. To do. The sounding state of the alarm device 9 continues until the engine is started by the engine starter 11 by the portable device 1 that is properly registered, and is configured to notify unauthorized intrusion inside and outside the vehicle.

  As described above, the smart keyless control unit 7 delays the completion of the acceptance of the password B for a predetermined time, so that even if the theft obtains the password B illegally by performing operations S2 to S6 by some means, This time can be extended, and it has the effect of preventing theft of the theft. If the thief has made an unauthorized intrusion, the sounding state of the alarm device 9 in the unauthorized intrusion detection control unit 10 continues only for the predetermined time, so the theft by the theft is likely to be seen from the outside. Therefore, the theft itself can be abandoned and theft can be prevented.

  In addition, in step S10, the reception of the password B is completed and a notification is made to the outside that the security state of the smart keyless control unit 7 has been released. Therefore, the anti-theft effect is improved.

  Here, even when the registration method of the portable device of the present invention is performed using a portable device derived from a legitimate user, a delay time occurs in completing password acceptance, but the delay time is a series of registration operations. Setting within the range that does not impede can reduce bothersomeness and unnecessary man-hours, preferably 5 to 10 minutes.

DESCRIPTION OF SYMBOLS 1 Mobile device 2 Camera 3 Intrusion sensor 4 Unauthorized unlocking detection means 5 Immobilizer control unit 6 Engine start control unit 7 Smart keyless control unit 8 Intrusion detection unit 9 Alarm device 10 Burglar control unit 11 Engine start device 12 Engine start detection sensor 14 Permit Means 15 Delay means 20 Security release device 30 Server

Claims (3)

A first crime prevention means for detecting an unauthorized entry into the vehicle and sounding an alarm sound;
Communicating with a portable device possessed by the user, and having a second crime prevention means that permits operation of the in- vehicle device of the vehicle only when a predetermined authentication state is established,
The first crime prevention means is a vehicle antitheft device in which the first and second crime prevention means are related to stop the sounding state after a predetermined authentication state in the second crime prevention means is established,
It said second security means, when the password associated with the vehicle is input, to allow a new portable device for establishing the predetermined authentication condition, an additional as a portable machine for the vehicle When a permission means and a password associated with the vehicle are inputted , the acceptance of the inputted password is delayed for a predetermined time, and the permission means is used as the portable device for the vehicle of the new portable device. And delaying means for delaying the addition of the predetermined time, and configured to maintain the alarm sounding state by the first crime prevention means until the predetermined time elapses An antitheft device for a vehicle characterized by the above. 2. The antitheft device for a vehicle according to claim 1, wherein the operation of the in-vehicle device permits the operation of the engine, and the second security means permits the engine start by the authentication of the portable device for the vehicle. An anti-theft device for a vehicle characterized by being a smart start system. A theft prevention device for a vehicle according to claim 1 or 2, the second security means further after the predetermined authentication condition satisfied, has a blowing mechanism for blowing notifying the authentication state established The antitheft device for vehicles characterized by the above-mentioned.

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