• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: An apparatus and a method for controlling an immobilizer of a vehicle are provided to prevent the vehicle from being stolen by shutting off an injection of fuel when an immobilizer function is not applied to an engine control device. CONSTITUTION: An immobilizer controlling apparatus includes an ignition key(10), a key holder(20), a control device(30) and an engine control device. A transponder having a secrete code is installed in the ignition key(10). The ignition key(10) receives power from a coil antenna installed in the key holder(20), thereby outputting a predetermined secrete code. The key holder(20) outputs power applied from the control device to the transponder of the ignition key(10) and transmits the secrete code to the control device(30). The control device(30) applies power to the antenna of the key holder(20).
    公开号:KR20030006046A
    申请号:KR1020010041592
    申请日:2001-07-11
    公开日:2003-01-23
    发明作者:김영갑
    申请人:현대자동차주식회사；
    IPC主号:
    专利说明:

    Vehicle immobilizer control device and method {APPARATUS FOR IMMOBILIZER CONTROLLED OF VEHICLE AND METHOD THEREOF}
    [3] The present invention relates to an immobilizer device of a vehicle, and more particularly, to an immobilizer control device and a method of controlling the start by automatically checking whether the immobilizer device is installed in the engine control device when the start request.
    [4] Normally, the immobilizer device of a vehicle causes the engine to start when the code set on the ignition key and the ignition code set on the engine control unit match when the engine is requested to be started, thereby preventing theft of the vehicle by operating another ignition key. It is a device for preventing.
    [5] In this immobilizer device, when the user (driver) inserts the ignition key into the key holder and selects the start-on contact, the transponder embedded in the ignition key is supplied with power from the coil installed in the key holder and set to wireless communication. The encrypted code is transmitted to the immobilizer controller.
    [6] At this time, the immobilizer control unit calculates whether the encryption code received and the encryption code set to it match, and then transmits the calculated result to the engine control unit as information on whether to allow the engine to start the engine control unit information of the immobilizer engine. If the engine is allowed to start, the engine is turned on by controlling the fuel injection and ignition timing. If the engine is not allowed, the engine control unit shuts off the fuel injection so that the engine is not turned on.
    [7] The conventional immobilizer device as described above has a problem that the function of the immobilizer does not operate when the engine control device is replaced with another one.
    [8] In particular, in commercial trucks that can tilt the CAB without a key, the engine control unit is installed on the side of the engine, and the mounting of the immobilizer is classified as an option. When the control device is replaced, the engine can be started so that the vehicle can be stolen.
    [9] The present invention has been invented to solve the above problems, and its object is to output a signal notifying that the vehicle is installed with an immobilizer device when a start-up request is made so that the corresponding engine controller does not apply the immobilizer function. In the case of replacement with the control unit, the fuel injection is cut off at the source to prevent the engine from starting.
    [1] 1 is a block diagram illustrating an immobilizer control apparatus for a vehicle according to an exemplary embodiment of the present invention.
    [2] 2 is a control flowchart of a method for controlling an immobilizer of a vehicle according to an exemplary embodiment of the present invention.
    [10] The present invention for realizing the above object is an ignition key is set and the ignition key is supplied with power at the start-up selection and outputs the encryption code, the key holder for receiving the set encryption code by supplying power to the ignition key, Immobilizer control means for controlling the power supply for receiving the encryption code set in the ignition key, comparing the received encryption code with its set value and controlling whether to start the engine or not, according to the start control signal of the immobilizer controller. It characterized in that it comprises an engine control device for controlling.
    [11] The immobilizer control device further includes a control unit for analyzing the received encryption code and an application authentication unit for outputting a signal for authenticating that the immobilizer control device is mounted.
    [12] The present invention also provides a process for determining whether a start-on request signal by an ignition key is detected, a process of determining whether an immobilizer function is applied by monitoring a voltage of a communication line when a start-on request signal is detected, and an immobilizer function. If this state is applied, the process of determining whether the received response code is a normal code, and if the normal code is turned on the engine by controlling the fuel injection and ignition timing, in the case of an abnormal code, the engine is turned off Characterized in that it comprises a process.
    [13] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    [14] As can be seen in Figure 1, the immobilizer control apparatus for a vehicle according to the present invention comprises an ignition key 10, a key holder 20, an immobilizer control device 30 and the engine control device 50, the ignition key 10 is a transponder with a password code set therein is inserted into the key holder 20 to trigger the start-on contact to receive power from the coil antenna installed in the key holder 20, a unique password set Output the code
    [15] When the selection of the start-on contact is detected, the key holder 20 emits power applied from the immobilizer control device 30 to the transponder of the ignition key 10 through the antenna, and receives an encryption code received from the transponder. It is responsible for the function of transmitting to the immobilizer control device (30).
    [16] The immobilizer control device 30 supplies power to the antenna of the key holder 20, detects whether the encryption code received through the antenna of the key holder 20 matches the set code, and then determines whether to start the engine. It is in charge of controlling function.
    [17] The immobilizer control device 30 includes a control unit 31 which analyzes whether a function for supplying power to the antenna of the key holder 20 and the encryption code received from the antenna match, and a start-on contact selection of the ignition key 10. Is detected, the voltage value supplied from the immobilizer control device 30 to the engine control device 40 is inverted from a 'high' state to a 'low' state for a predetermined time, thereby controlling the immobilizer on the engine control device 40 side. It includes an application authenticator 32 to recognize that the device 30 is mounted.
    [18] The engine controller 40 controls the general operation for maintaining a stable start according to the start-on / off of the engine and the respective load conditions on the vehicle, and determines whether the voltage supplied from the application authentication unit 32 is inverted. Detects whether the engine is to be turned on or not.
    [19] The operation of controlling the immobilizer function in the configuration of the present invention including the function as described above is as follows.
    [20] When the ignition key 10 having the transponder mounted therein is inserted into the key holder 20 and a trigger to the start-on contact is detected by the control unit 31 of the immobilizer control device 30, the control unit 31 is configured as a key holder ( 20) After receiving the encryption code set on the ignition key 10 through the coil antenna installed in the detection, it is detected whether the received encryption code matches the set code, and if it is determined to match each other, the control for starting the engine The signal is transmitted to the engine control device 40 side.
    [21] At this time, the application authentication unit 32 in the immobilizer control device 30 sets the voltage value of the communication line supplied to the engine control device 40 according to the selection of the start-on contact of the ignition key 10 for a predetermined time. By reversing from the 'state' to the 'low' state, the immobilizer control device 30 is mounted on the engine control device 40 side.
    [22] When it is recognized by the engine control device 40 that the immobilizer control device 30 is mounted in the authentication through the process as described above, the immobilizer control device 30 and the engine control device 40 are software-connected to start up. It checks to see if a normal code should be received and then decides whether to start up accordingly.
    [23] Therefore, even if the engine control device is removed from the vehicle equipped with the immobilizer control device and then attached to another engine control device, the engine control device checks that the immobilizer control device is mounted to block engine starting.
    [24] In particular, the cap is tilted without a key, and even when the engine control device is removed from a commercial vehicle in which the engine control device is mounted on the side of the engine, and then attached to another engine control device, it is abnormal through a constant voltage change detected through the communication line. Recognize that the engine controls are fitted to prevent the engine from starting.
    [25] In the above description, the immobilizer control operation will be described with reference to FIG. 2.
    [26] When the engine start request signal is detected (S101), the engine controller monitors the authentication signal to determine whether the immobilizer function is applied (S102) (S103), and when it is determined that the immobilizer function is applied, the immobilizer control is performed. The response code received from the device is analyzed with the set code to determine whether a normal code is received (S104) (S105).
    [27] At this time, when it is determined that the received response code to be analyzed is normal, the engine controller controls the engine to be turned on normally through control of fuel injection and ignition timing, and when abnormal response code is received or no response code is received, fuel injection is performed. To prevent the engine from starting.
    [28] As described above, according to the present invention, even if the engine control device is removed from the vehicle equipped with the immobilizer control device and then attached to another engine control device, a signal for authenticating that the immobilizer control device is applied to the engine control device is detected. Blocks the start-up of the vehicle, thus preventing theft of the vehicle.
    [29] In addition, the cab is tilted without a key, and the engine is started by an immobilizer application certification signal detected through a communication line even when the engine control device is removed from a commercial vehicle in which the engine control device is mounted on the side of the engine and then mounted by another engine control device. Stability is provided because blocking the on prevents theft from occurring.
    [30] Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.
    权利要求:
    Claims (4)
    [1" claim-type="Currently amended] An ignition key and an ignition key configured to output power by receiving power when the startup is selected;
    A key holder for supplying power to the ignition key to receive a set encryption code;
    Immobilizer control means for controlling the power supply for receiving an encryption code to the ignition key and controlling whether to start the engine by comparing the received encryption code with its set value;
    An immobilizer control device for a vehicle, characterized in that it comprises an engine control device for controlling whether to start the engine according to the start control signal of the immobilizer control device.
    [2" claim-type="Currently amended] The method of claim 1,
    The immobilizer control device includes a control unit for analyzing the received encryption code;
    An immobilizer control device for a vehicle, further comprising an application authentication unit for outputting a signal for authenticating that the immobilizer control device is mounted.
    [3" claim-type="Currently amended] The method of claim 2,
    And the authentication unit inverts the communication voltage with the engine controller for a predetermined time period to notify that the immobilizer control device is applied.
    [4" claim-type="Currently amended] Determining whether a start-up request signal by the ignition key is detected;
    Determining whether an immobilizer function is applied by monitoring a voltage of a communication line when a start-on request signal is detected;
    Determining whether a response code received is a normal code when an immobilizer function is applied;
    In the case of a normal code, the engine start-up by controlling the fuel injection and the ignition timing, and in the case of an abnormal code comprising the step of blocking the starting source of the engine.
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    同族专利:
    公开号 | 公开日
    KR100427373B1|2004-04-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2001-07-11|Application filed by 현대자동차주식회사
    2001-07-11|Priority to KR20010041592A
    2003-01-23|Publication of KR20030006046A
    2004-04-14|Application granted
    2004-04-14|Publication of KR100427373B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR20010041592A|KR100427373B1|2001-07-11|2001-07-11|Apparatus for immobilizer controlled of vehicle|
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