JP2005289157A - Vehicular antitheft system and vehicular antitheft device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular antitheft system and a vehicular antitheft device which, when an additional registration of a key or a change of an immobilizer-related component has been performed or is to be performed, notify an authorized user of that effect. <P>SOLUTION: The vehicular antitheft system includes: an on-vehicle device control device which is mounted on a vehicle, has a transmitter, and permits an operation of a predetermined on-vehicle device of the vehicle if the user ID code acquired from a user is matched with the ID code for collation which is registered in the vehicle in advance; and a user communication terminal which is maintained by the authorized user of the vehicle and performs the communication with the transmitter of the on-vehicle device control device. The on-vehicle device control device (the vehicular antitheft device) transmits change information on generation of the additional registration of the ID code for collation or generation of the change of the set content of the on-vehicle device control device (change-finish information or change request information) to the user communication terminal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention generally relates to a vehicle theft prevention system and a vehicle antitheft device using an immobilizer, and more particularly to a vehicle theft prevention that requires notification or confirmation to an authorized user for additional key registration and replacement of immobilizer related parts. The present invention relates to a system and a vehicle antitheft device.

  As a vehicular security system, an immobilizer (electronic movement lock device) mainly for theft prevention is known. Immobilizers are mandatory in Europe as standard specifications since 1997, and the number of vehicles equipped in Japan is increasing.

  In an immobilizer, a small electronic communication chip called a transponder is embedded in the engine key (grip part) of the vehicle, and when the engine key is inserted into the key cylinder on the vehicle side, the ID code recorded in advance on the transponder is the key cylinder. It is transmitted to the antenna attached to and read. The read ID code is collated with an ID code held in advance by the ECU on the vehicle side. If these ID codes match, it is authenticated that the used engine key is a normal engine key, and engine ignition and fuel injection are permitted. On the other hand, when the ID code of the engine key does not match the ID code on the vehicle side, ignition of the engine and fuel injection are not permitted, and the engine cannot be started using the engine key.

  In such an immobilizer system, when an available key is additionally registered, an operation for registering an ID code unique to the key on the vehicle side is required. Regarding the addition of such a key, a configuration has been proposed in which a sub key can be registered by authenticating a master key (main key) (see, for example, Patent Documents 1 and 2).

Also, in the conventional immobilizer system, immobilizer-related parts such as an immobilizer ECU and an engine ECU often communicate with each other by assigning a unique ID to each part. In such an immobilizer system, when exchanging immobilizer-related components, ID association is reset using a dedicated tool or the like.
JP-A-8-268228 JP 2001-71868 A

  In an immobilizer system, when an additional registration of an available key is performed, it is largely assumed that it is based on a registration request by an authorized user (or authorized by the authorized user).

  However, in the antitheft device for vehicles using the conventional immobilizer as described above, since the master key is considered to be additional registration of the key by the authorized user (or authorized by the authorized user), for example, When the master key is held by a person other than the authorized user, such as when temporarily leaving the vehicle to a staff member in a large parking lot or hotel, there is a possibility that the key is illegally added and registered.

  In this way, even if the subkey is illegally additionally registered, if the vehicle and the master key are returned to the authorized user as usual, it is difficult for the authorized user to notice the unauthorized registration.

  In addition, in the vehicle antitheft device using the conventional immobilizer as described above, a person who intends to steal the vehicle tries to use his own key as a registration key by illegally replacing immobilizer related parts. In addition, the above-mentioned dedicated tool or the one that can function equivalently may be used illegally to make it appear to be a regular part replacement.

  The present invention is for solving such problems, and a vehicle theft prevention system that is notified to an authorized user when additional registration of a key or replacement of immobilizer-related parts is performed or when it is attempted. And it aims at providing the antitheft device for vehicles.

The first aspect of the present invention for achieving the above object is that the user ID code acquired from the user is matched with the ID code for collation registered in the vehicle in advance. A vehicle-mounted device control device that permits the operation of a predetermined vehicle-mounted device of the vehicle,
A vehicle theft prevention system including a user communication terminal held by an authorized user of the vehicle and communicating with the communication device of the in-vehicle device control device;
The on-vehicle device control device is a vehicle theft prevention system that transmits change information regarding the occurrence of additional registration of the verification ID code or the change of the setting content of the on-vehicle device control device to the user communication terminal.

  In the first aspect, the predetermined in-vehicle device is, for example, a device (ignition device, fuel injection device, engine ECU, etc.) related to the operation of a power source such as an engine.

  In the first aspect, the change information may be directly transmitted from the in-vehicle device control device to the user terminal device or the user communication via a predetermined communication station that can function as a relay station. It may be transmitted to the terminal.

  According to the first aspect, since an authorized user of the vehicle is notified of the occurrence of additional registration of a key or the change of the setting contents of the in-vehicle device control device, the authorized user can add the key or register the in-vehicle device. If there is no memorization about the change of the setting contents of the control device, it can be recognized that an illegal additional registration or an illegal part replacement has been or is about to be performed.

  In this first aspect, the change information is changed to be transmitted to the user communication terminal when the verification ID code is additionally registered or when the setting content of the in-vehicle device control device is changed. Information, or change request information transmitted to the user communication terminal when an additional registration of the ID code for verification is requested or when a change in setting contents of the in-vehicle device control device is requested It may be. In the latter case, when the in-vehicle device control device receives a change permission notification as a response to the change request information from the user communication terminal, the registration of the verification ID code is added or the setting content of the in-vehicle device control device is changed. It is preferably designed to perform.

  Further, in this first aspect, other than the communication device among the components of the in-vehicle device control device so that the change information is transmitted to the user communication terminal of the authorized user even when the communication device is illegally replaced At least one component holds user information of an authorized user of the vehicle, and the in-vehicle device control device is configured to receive the user information at least when the communication device is exchanged or when the exchange of the communication device is requested. It is preferable that the changed information or the change request information is transmitted to the user communication terminal by using.

The second aspect of the present invention for achieving the above object is that the user ID code acquired from the user is matched with the verification ID code registered in advance in the vehicle, which is mounted on the vehicle and has a communication device. An antitheft device for a vehicle that permits operation of a predetermined in-vehicle device of the vehicle,
An anti-theft device for a vehicle that transmits change information relating to the occurrence of additional registration of the ID code for verification or the change in setting contents of the anti-theft device for vehicles to an authorized user of the vehicle by communication.

  In the second aspect, the predetermined in-vehicle device is, for example, a device (ignition device, fuel injection device, engine ECU, etc.) related to the operation of a power source such as an engine.

  In the second aspect, the change information may be transmitted by being directly transmitted from the vehicle antitheft device to the user terminal device of the authorized user, or may be a predetermined function that can function as a relay station. It may be transmitted by being transmitted to the user communication terminal of the regular user via the communication station.

  According to the second aspect, since the authorized user of the vehicle is notified of the occurrence of the additional registration of the key or the change of the setting contents of the antitheft device for the vehicle, the authorized user can register the additional key or the vehicle. If there is no memorization about the change in the setting contents of the anti-theft device, it can be recognized that unauthorized additional registration or unauthorized parts replacement has been performed or is about to be performed.

  In this second aspect, the change information is transmitted to an authorized user of the vehicle by communication when the verification ID code is additionally registered or when the setting contents of the vehicle antitheft device are changed. May be changed information, or when the additional registration of the verification ID code is requested or when the setting content of the vehicle antitheft device is requested, It may be change request information transmitted to the user. In the latter case, when a change permission notification is received as a response to the change request information from the authorized user of the vehicle, additional registration of the verification ID code or setting content change of the vehicle antitheft device is executed. Preferably it is designed.

  In the second aspect, the vehicle antitheft device includes at least one component other than the communication device so that the change information is transmitted to an authorized user even when the communication device is illegally replaced. Holds user information of an authorized user of the vehicle, and at least when the communication device is replaced or when replacement of the communication device is requested, the user information is used to change the changed information or the change request information. Is preferably designed to transmit to the user communication terminal.

  According to the present invention, it is possible to provide a vehicle antitheft system and a vehicle antitheft device which are notified to an authorized user when additional registration of keys or replacement of immobilizer-related parts is performed or when it is attempted. Can do.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings. The basic concept of the immobilizer system, the main hardware configuration, the operating principle, the basic control method, and the like are known to those skilled in the art and will not be described in detail.

  A first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic diagram of a vehicle antitheft system according to this embodiment.

  A vehicle-mounted device control device (vehicle antitheft device) 101 mounted on the vehicle 100 includes a communication device 102 and an immobilizer ECU 103.

  The immobilizer ECU 103 is a controller that controls the immobilizer system. The immobilizer ECU 103 checks the ID code recorded in advance on the transponder of the engine key inserted into the key cylinder on the vehicle side, and the ID code stored in advance must match. For example, the engine ECU 104 has a function of issuing a command to prohibit engine start.

  The communication device 102 communicates with a center (communication station) 105 that is an authorized organization and capable of wireless communication, and the center 105 communicates with a user communication terminal 106 that is a mobile phone held by a regular user of the vehicle 100.

  In this embodiment, the communication device 102 and the immobilizer ECU 103 included in the in-vehicle device control apparatus 101 and the engine ECU 104 that cooperates with the immobilizer system outside the in-vehicle device control apparatus 101 are interconnected by communication lines, and these component parts Whether or not any of the above has been exchanged is monitored. Such mutual monitoring can be realized by assigning a unique ID to each component part at the time of incorporation, and polling using the unique ID between the parts.

  On the premise of such a configuration, the in-vehicle device control apparatus 101 according to the present embodiment detects immobilizer-related components as described above when the immobilizer ECU 103 detects that a new ID code (key) is additionally registered. When it is detected that any component part has been physically exchanged by mutual monitoring, a change notification is transmitted to the center 105 via the communication device 102.

  The center 105 that has received the changed notification indicating that additional key registration or part replacement has been performed converts the changed notification into, for example, an e-mail format, and is held by the authorized user of the vehicle 100. Transfer to user communication terminal 106.

  The authorized user of the vehicle 100 can recognize that the key has been additionally registered or the immobilizer related parts have been replaced by receiving the notification of change. If the user does not remember the additional registration of the key or the replacement of the immobilizer related parts, it can be determined that there is a possibility that the key has been illegally executed.

  In such a case, the authorized user of the vehicle 100 immediately deletes the additionally registered key by the authorized user's authority, and takes the vehicle 100 to the repair shop to restore the immobilizer-related parts that have been illegally replaced. It is possible to take measures as soon as it is repaired.

  Further, in this embodiment, if the center 105 manages data by associating the communication device 102 with the user communication terminal 103 (regular user), the center 105 will be replaced if the communication device 102 is exchanged illegally. There is a possibility that the sender communication device 102 is mistakenly identified, and the other person's (for example, unauthorized exchanger) user communication terminal is misrecognized as the changed notification transfer destination, and the changed notification does not reach the authorized user of the vehicle 100.

  Therefore, in the present embodiment, the component parts other than the communication device 102 (that is, the immobilizer ECU 103 and the engine ECU 104 in the present embodiment) that are mutually monitored are used for identifying the communication device 102 or the regularity of the vehicle 100. Designed to hold identification information for identifying each user, and when it is detected that a component part other than the communication device 102 has been replaced, the identification information is also displayed together with the above-mentioned changed notification. It is designed to be transmitted to the center 105 via the communication device 102. The center 105 is designed to select the transfer destination user communication terminal 106 for the changed notification based on the identification information transmitted together with the changed notification.

  As described above, according to the present embodiment, when the additional registration of the key or the replacement of the immobilizer related parts is performed, the authorized user is notified to that effect. Therefore, the authorized user is additionally registered with the unauthorized key or associated with the unauthorized immobilizer. It is possible to grasp that the parts have been replaced.

  In this embodiment, the notification to the user communication terminal 106 is performed in the form of e-mail, for example. However, the operator of the center 105 may naturally transmit it by voice call.

  Next, Embodiment 2 of the present invention will be described with reference to FIG. FIG. 2 is a schematic diagram of the vehicle antitheft system according to the present embodiment. In this embodiment, the same configuration as that of the first embodiment is adopted, except that additional key registration and replacement of immobilizer-related parts cannot be completed without obtaining permission from a regular user.

  The in-vehicle device control device 101 according to the present embodiment is activated when the immobilizer ECU 103 detects that an additional registration of a new ID code (key) is requested and by monitoring between immobilizer-related components as described above. When it is detected that the component part is physically exchanged and the unique ID resetting is requested, a change request notification is transmitted to the center 105 via the communication device 102.

  The center 105 that has received the change request notification indicating that additional key registration or parts replacement has been requested, the user communication terminal held by the authorized user of the vehicle 100 with the content of the change request notification, for example, by a voice call by the operator 106.

  By receiving the change request notification, the authorized user of the vehicle 100 can recognize that the additional registration of the key has been requested or that the immobilizer related parts have been replaced and the unique ID has been requested to be reset. If the user does not remember the additional registration of the key or replacement of the immobilizer related parts, it can be determined that there is a possibility that the key has been illegally executed.

  In such a case, the authorized user of the vehicle 100 informs the center 105 that permission is not granted. On the other hand, in the case of additional registration of keys or replacement of immobilizer-related parts permitted by the authorized user or authorized user, the authorized user notifies the center 105 through the user communication terminal 106 of permission.

  The center 105 transmits a change permission notification from the authorized user to the communication unit 102 of the in-vehicle device control device 100. In the in-vehicle device control device 100, the additional registration of the key and the resetting of the unique ID of the immobilizer related component are permitted and executed only after receiving the permission notification from the authorized user.

  Also in the present embodiment, it may be designed such that the identification information about the communication device 102 or the authorized user is transmitted to the center 105 via the communication device 102 together with the change request notification.

  As described above, according to the present embodiment, since it is necessary for the authorized user to permit additional registration of keys or replacement of immobilizer-related parts, it is necessary to perform additional registration of unauthorized keys or replacement of immobilizer-related parts. Can be prevented.

  In the present embodiment, the notification to the user communication terminal 106 is performed by a voice call by an operator of the center 105, for example, but may be transmitted in the form of an e-mail.

  As mentioned above, although Example 1 and 2 of this invention was demonstrated, this invention is not restricted to these, It can implement in various forms. For example, in the first and second embodiments, the user communication terminal 106 is a mobile phone, for example. However, the present invention is not limited to this, and may be a wired communication device such as a personal computer. . In the first and second embodiments, the changed information and the change request information are transmitted to the user communication terminal 103 via the center 105. However, the present invention is not limited to this, and the in-vehicle device control device 100 may be transmitted directly to user communication terminal 103.

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle antitheft system using an immobilizer and a vehicle antitheft device. The appearance, weight, size, running performance, etc. of the vehicle to be mounted are not limited.

It is the schematic of the vehicle antitheft system which concerns on Example 1 of this invention. It is the schematic of the vehicle antitheft system which concerns on Example 2 of this invention.

Explanation of symbols

100 Vehicle 101 On-vehicle device control device (vehicle antitheft device)
102 communication device 103 immobilizer ECU
104 Engine ECU
105 Center (communication station)
106 User communication terminal

Claims (8)

A vehicle-mounted device that is mounted on a vehicle, has a communication device, and permits operation of a predetermined vehicle-mounted device of the vehicle when a user ID code acquired from a user matches a verification ID code registered in the vehicle in advance. A control device;
A vehicle anti-theft system including a user communication terminal held by an authorized user of the vehicle and communicating with the communication device of the in-vehicle device control device;
The vehicle-mounted device control device transmits to the user communication terminal change information regarding the occurrence of additional registration of the verification ID code or the setting content change of the vehicle-mounted device control device. . The vehicle antitheft system according to claim 1,
The in-vehicle device control device transmits changed information to the user communication terminal when the verification ID code is additionally registered or when the setting content of the in-vehicle device control device is changed. Vehicle anti-theft system. The vehicle antitheft system according to claim 1,
The in-vehicle device control device is
When additional registration of the verification ID code is requested, or when a change in the setting content of the in-vehicle device control device is requested, change request information is transmitted to the user communication terminal,
When receiving a change permission notification as a response to the change request information from the user communication terminal, additional registration of the verification ID code or setting content change of the in-vehicle device control device is executed, and the vehicle theft prevention system. The vehicle antitheft system according to claim 2 or 3,
Among the components of the in-vehicle device control device, at least one component other than the communication device holds user information of a regular user of the vehicle,
The in-vehicle device control device uses the user information to send the changed information or the change request information to the user communication terminal at least when the communication device is replaced or when the communication device is requested to be replaced. A vehicle anti-theft system characterized by transmitting. A vehicle mounted on a vehicle, having a communication device, and permitting the operation of a predetermined in-vehicle device of the vehicle when a user ID code acquired from a user matches a verification ID code registered in the vehicle in advance. An anti-theft device,
The vehicle antitheft device, wherein the change information regarding the occurrence of the additional registration of the verification ID code or the change of the setting contents of the vehicle antitheft device is transmitted to an authorized user of the vehicle by communication. The vehicle antitheft device according to claim 5,
When the verification ID code is additionally registered, or when the setting contents of the vehicle antitheft device are changed, the changed information is transmitted to an authorized user of the vehicle by communication. Anti-theft device. The vehicle antitheft device according to claim 5,
When additional registration of the verification ID code is requested, or when a change in the setting contents of the vehicle antitheft device is requested, the change request information is communicated to an authorized user of the vehicle by communication,
When a change permission notification is received as a response to the change request information from an authorized user of the vehicle, the vehicle performs additional registration of the verification ID code or changes in the set contents of the vehicle antitheft device Anti-theft device. The vehicle antitheft device according to claim 6 or 7,
At least one component other than the communication device holds user information of a regular user of the vehicle,
At least when the communication device is replaced or when replacement of the communication device is requested, the user information is used to transmit the changed information or the change request information to an authorized user of the vehicle. A vehicle antitheft device.

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