KR20070070556A - Method for displaying vehicle security status and smart key system using the same - Google Patents

Abstract

A vehicle security status display method and a smart key system using the same are provided to permit a driver to perceive a vehicle security status through a visual unit mounted on a door handle when the driver contacts the door handle to open or close a vehicle door. A smart key system includes a smart key(50), a smart key controller(70), and a door handle unit(60). The smart key is equipped with a first antenna and a second antenna for radio communication, and outputs an authentication signal for opening/closing a vehicle door. The smart key controller performs authentication through the radio communication between a third antenna of the smart key controller and the first antenna of the smart key. The door handle unit includes an unlock sensor(64) outputting an unlock signal for opening the vehicle door to the smart key controller; a lock switch(65) outputting a lock signal for closing the vehicle door to the smart key controller; a display(68) for outputting at least two colors of light; a first antenna connected to the smart key controller to perform radio communication with the second antenna; and a door controller(61) transmitting signals of the unlock sensor and the lock switch to the smart key controller, receiving the vehicle status information from the smart key controller, and displaying the vehicle status through the display.

Description

Method for Displaying Vehicle Security Status And Smart Key System Using The Same}

1 is a block diagram for explaining the configuration of a conventional smart key system.

Figure 2 is a block diagram for explaining the configuration of the door handle portion in the conventional smart key system.

Figure 3 is a block diagram for explaining the configuration of a vehicle security status display smart key system according to the present invention.

Figure 4 is a flow chart for explaining the process of opening the door in the present invention.

Figure 5 is a flow chart for explaining the closing process of the door in the present invention.

Explanation of symbols on the main parts of the drawings

50: smart key 60: door handle

70: smart key controller 80: alarm system

82: BCM 84: Actuator

The present invention relates to a vehicle security status display method and a smart key system using the same, in particular, a vehicle security status display method for opening and closing a door after checking the security state of a vehicle in a car equipped with the smart key system, and smart It is about a key system.

In general, a smart key system (smart key system) is a vehicle security convenience system that can open and close the door and start the engine without a separate key operation, if the driver carries the smart key, thereby blocking the risk of vehicle theft.

As shown in FIG. 1, the smart key system includes a smart key 10 for enabling the opening and closing of an automobile door and starting the engine using a smart card, and a door installed at a door handle of the automobile door to have an opening / closing function of the door. Smart key system is connected to the handle portion 12, the smart key 10 and the door handle portion 12 wirelessly, and determines whether the door is opened or closed through wireless authentication with the smart key 10 ( 14).

In addition, the smart key system 14 includes a vehicle body control system 16 (BCM; Body Control Module, hereinafter referred to as BCM) for controlling vehicle control, and an alarm system for generating an alarm by checking the security state of the vehicle ( 17) and a plurality of actuators 18, which are installed in the vehicle body and controlled by the BCM 16, are connected.

As shown in FIG. 2, the door handle part 12 is connected to the smart key 10 and the antenna terminals ANT1 and ANT2 at a long wave (LF) frequency to enable wireless communication. When one side is connected to the ground terminal (G) of the power supply, the lock switch 22 which outputs the lock signal L of the door to the smart key controller 14 is configured as a capacitive sensor. The lock switch 22 and the lock sensor 22 are supplied through an input terminal B ⁺ , G, and an unlock sensor 23 that outputs an open signal U / L when the hand touches the It consists of the power supply part 24 which supplies the power required for driving the unlock sensor 23. As shown in FIG.

In a vehicle equipped with the conventional smart key system configured as described above, when the user changes the door of the vehicle to the locked or open state, the door is changed to the open state by touching the unlock sensor 23 of the door handle part 12. Alternatively, by operating the lock switch 22, wireless communication with the smart key controller 14 via the LF antenna 21 to convert the door of the vehicle to the locked state through the authentication between both sides and the alarm system 17 To work.

At this time, the user confirms that the door of the vehicle is changed to the locked or open state through the direction indicator light or the horn sound driven by the alarm system 17 of the vehicle.

However, when the user is at an angle where it is difficult to see the direction indicator, or particularly when the user is looking at the door handle on the side of the vehicle, that is, in front of the door, it is difficult to recognize the operation of the direction indicator without consciously looking at the direction indicator.

That is, in the smart key system, in order to operate the unlock sensor 23 or the lock switch 22 of the door handle part 12 for the purpose of opening and closing the door, the user places the eye on the door handle while holding the smart key. At this time, the expression of the vehicle security state using the direction indicator of the position deviated from the main view of the user is a problem that is not properly delivered to the user.

In addition, the horn sound is a simple sound that is difficult to distinguish from other cars, and there is a problem that is difficult to recognize because the surrounding environment is hard to hear when the surrounding environment is noisy.

In addition, when a failure (for example, when the user intentionally forgot to return to normal after stopping the operation of the alarm system) occurs in the alarm system, even if the monitoring of the security state of the vehicle is released, There is a problem that can not tell.

In addition, when the alarm system has a failure (for example, when the alarm system is activated during parking or when the user intentionally stops the operation of the alarm system), even though the monitoring of the security state of the vehicle is released. There is a problem in recognizing the failure of the smart key system, failure of the alarm system, abnormal state of the vehicle because it does not inform the user.

An object of the present invention to solve the problems of the prior art as described above, by using the smart key system to open or close the door of the vehicle to effectively recognize the normal operation of the car alarm system or the security state of the car to the user The present invention provides a vehicle security status display method and a smart key system using the same.

It is another object of the present invention to provide a vehicle security status display method and a smart key system using the same, which improves the recognition by transmitting the state of the vehicle before opening or closing the vehicle door through a visual output means installed at an effective position of the driver. There is.

The present invention consists of a smart key and a door handle portion installed in the door handle and a smart key controller wirelessly connected to the smart key and the door handle portion carried by the driver to control the opening and closing of the door. In the vehicle security status display method of a vehicle equipped with a smart key system and a vehicle body control module and an alarm system, (a) in order to open a door of the vehicle, (a1) when an unlock signal is input from an opening sensor of the door handle part, A smart key controller authenticating the smart key; (a2) if the smart key is authenticated, the smart key controller changing the door to an unlocked state through the vehicle body control module; (a3) the smart key controller Receiving the security status information of the vehicle from the alarm system and checking whether it is normal, and (a4) Opening, by the smart key controller, a step of transmitting a normal signal to the driver if the security state information is normal and a abnormal signal to the driver if abnormal; (b) in order to close the door of the vehicle, (b1) when the lock signal is input from the lock switch of the door handle part, the smart key controller authenticates the smart key; (b2) if the smart key is authenticated, the The smart key controller receives the vehicle status information from the vehicle body control system of the vehicle to check whether it is normal, and (b3) The smart key controller transmits a normal signal to the driver when the security state information is normal, and controls the vehicle body. Locking the door through the module, if the abnormality provides a vehicle security status display method comprising the step of closing the door consisting of a request for confirmation by transmitting an abnormal signal to the driver.

The security state information is characterized in that it includes information on whether the car door and window opening and closing, the normal operation of the alarm system.

The normal signal and the abnormal signal may be output in different colors.

Step (b3) of the step (b) is to check whether the alarm system is normal, and if normal, further comprising the step of transmitting a normal signal to the driver if abnormal.

The present invention provides a smart key including a first antenna and a second antenna for wireless communication, and outputting an authentication signal for opening and closing a door of a vehicle; A smart key controller performing authentication processing by wirelessly communicating with the first antenna of the smart key through a third antenna; An unlock sensor for outputting the unlock signal for opening the door to the smart key controller, a lock switch for outputting the lock signal for door closing to the smart key controller, a display unit for outputting at least two colors of light, and the smart key controller. A first antenna which is connected and wirelessly communicates with the second antenna, and transmits signals of the unlock sensor and the lock switch to the smart key controller and inputs normal state information or abnormal state information of the vehicle input from the smart key controller. It also provides a smart key system having a vehicle security status display function comprising a door handle portion including a door controller to receive a normal or abnormal state through the display.

The door handle unit may further include a power supply unit configured to supply power to drive the unlock sensor, the lock switch, the display unit, and the door controller.

The smart key controller is connected to the alarm system for monitoring the security state of the vehicle and the vehicle body control module of the vehicle, and acquires the security state information of the vehicle and whether the door and the window are opened or closed, and outputs normal state information or abnormal state information. And controlling the vehicle body.

The abnormal state information is characterized in that at least one of the operation of the alarm system, the failure of the alarm system, the opening of the door or window during parking.

The display unit may include a first display unit displaying the steady state information and a second display unit displaying the abnormal state information.

The first display unit is composed of a blue LED, and the second display unit is characterized in that the red LED.

The present invention made as described above has the advantage of actively transmitting the state of the vehicle through the visual means before the driver opens or closes the car door.

(Example)

A vehicle security status display method and a smart key system having a vehicle security status display function according to the present invention will be described in detail with reference to the accompanying drawings showing a preferred embodiment of the present invention.

3 is a block diagram for explaining the configuration of the vehicle security status display smart key system according to the present invention, FIG. 4 is a flow chart for explaining the opening process of the door in the present invention, Figure 5 is a door in the present invention This is a flow chart to explain the closing process of.

In describing a vehicle security status display method and a smart key system having a vehicle security status display function according to the present invention, the configuration of the smart key system having the vehicle security status display function is described first, and then the vehicle security status display method is described. Explain.

As shown in FIG. 3, the smart key system having a vehicle security status display function includes a smart key 50, a door handle part 60 installed on the door handle, and a smart key controller 70. 70 is connected to an alarm system 80, which is responsible for the security of the vehicle, and a vehicle body control system 82 (BCM), which controls a plurality of actuators 84 and sensors installed in the vehicle.

The smart key 50 is connected to the door handle 60 and the LF receiving antennas (L _X , L _Y , L _Z ) for wireless communication to receive the frequency signal of the long wave (LF) for authentication processing LF receiver 55 for outputting an authentication request signal, a lock key 52 for outputting a signal for the driver to manually lock the door of the vehicle, an unlock key 53 for outputting a signal for opening the door, and trunk opening When a signal is received from the trunk key 54, the lock key 52, the unlock key 53, and the trunk key 54 for outputting a signal, or an authentication request signal is input from the LF receiver 55, Smart key control unit 51 (MPU) that outputs an opening / closing signal of a door, an opening signal or an authentication signal of a trunk, and an opening signal or an authentication signal of the door, an opening signal or an authentication signal of the door as an RF signal through the RF transmission antenna 57. It consists of the RF transmitter 56 which outputs.

The door handle part 60 is composed of a capacitive sensor, the unlock sensor 64 for outputting the unlock signal (U / L) for opening the door to the smart key controller 70, and the lock signal (L) for closing the door. ), The lock switch 65 outputting the smart key controller 70, the normal display unit 66 composed of a blue LED (LED1) for displaying a normal state, and the abnormality composed of a red LED (LED2) for displaying an abnormal state. A display unit 68 comprising a display unit 67, an LF antenna 63 connected to the antenna terminals ANT1 and ANT2 of the smart key controller 70 and outputting an authentication request signal to the LF receiver 55; The display unit receives the unlock signal U / L and the lock signal L to the smart key controller 70 and receives normal state information or abnormal state information of the vehicle input from the smart key controller 70. And the door controller 61 to display through 68 And a power supply unit 62 that receives the battery power of the vehicle through input terminals B ⁺ and G and supplies power required for driving the lock switch 65, the unlock sensor 64, and the door controller 61. It is composed of

Here, the lock switch 65 is connected to the L terminal and the C terminal of the door controller 61, the C terminal is connected with the cathode of the LED 1 and LED 2.

The smart key controller 70 is a LF transmitter 71 for outputting the LF signal including the authentication request signal to the LF antenna 63 and the RF signal containing the authentication signal transmitted from the RF transmitter 56 It is configured to include an RF receiving unit 72 for receiving through the receiving antenna (73).

The operation of the smart key system having the vehicle security status display function according to the present invention configured as described above will be described with reference to the vehicle security status display method according to another embodiment of the present invention and the flowcharts of FIGS. 4 and 5.

In the present invention, the process of opening the door is shown in Figure 4, when the user touches the unlock sensor 64 of the door handle 60 (S 101), the unlock signal (U / L) is the smart key controller ( 70) (S 102).

At this time, if the smart key system is not normal (S 103), the display indicates that the system failure through the abnormal display unit 67 (S 1031), if the normal smart key controller 70 is the LF antenna 63 And an authentication request signal for opening the door through the LF transmitter 71 to the smart key 50 (S 104).

The MPU 51 of the smart key 50 may receive the authentication request signal through the LF receiving antennas L _X , L _Y , L _Z and the LF receiving unit 55 (S 105) to open a door. The authentication signal is transmitted through the RF transmitter 56 and the RF transmit antenna 57 (S 106).

The smart key controller 70 receives the authentication signal through the RF receiving antenna 73 and the RF receiving unit 72 (S 107), determines whether the authentication signal is suitable (S 108), and a suitable authentication signal If not (S 109) and the appropriate authentication signal (S 109), the smart key controller 70 outputs the open signal of the actuator 84 for driving the door lock of the door through the BCM (82). (S110), the actuator is changed to an open state (S111).

Here, if the authentication signal is not a suitable authentication signal, the operation of the actuator 84 is not made.

In addition, the smart key controller 70 requests the alarm system 80 to check the security state of the vehicle (S 112), and checks whether the alarm system 80 has been operated while parking (S 113). If the state is normal (for example, when the alarm system is not operating), the alarm system 80 transmits the normal state information that the vehicle state is normal to the smart key controller 70 (S 114).

When the smart key controller 70 receives the normal state information, the smart key controller 70 displays the normal state through the normal display unit 66 and ends (S 115).

However, as a result of checking the state of the vehicle, if the alarm system 80 operates during parking, there is an abnormality in the vehicle. Therefore, abnormal state information indicating that the vehicle state is abnormal from the alarm system 80 to the smart key controller 70 is determined. Transfer (S 1131).

When receiving the abnormal state information, the smart key controller 70 displays the abnormal state through the abnormal display unit 67 and ends (S 1132).

On the other hand, the process of closing the door in the present invention, as shown in Figure 5, when the user turns on the lock switch 65 of the door handle 60 (S 201), the lock signal (L) is the smart key controller ( 70) (S202).

At this time, if the smart key system is not normal (S 203), an indication indicating a system failure through the abnormal display unit 67 (S 2031), if the normal smart key controller 70 is the LF antenna 63 And an authentication request signal for closing the door through the LF transmitter 71 to the smart key 50 (S204).

The MPU 51 of the smart key 50 may receive the authentication request signal through the LF receiving antennas L _X , L _Y , L _Z and the LF receiving unit 55 (S 205) to lock the door. An authentication signal is transmitted through the RF transmitter 56 and the RF transmitter antenna 57 (S206).

The smart key controller 70 receives the authentication signal through the RF receiving antenna 73 and the RF receiving unit 72 (S 207), determines whether the authentication signal is suitable (S 208), and is not suitable If it is an authentication signal (S209), it ends.

However, if the received authentication signal is a suitable authentication signal, the smart key controller 70 checks whether the vehicle state is normal through the BCM 82 (S 210).

In this case, the BCM 82 grasps vehicle state information including information such as whether the door is opened or closed by a vehicle, whether the window is opened or closed, and that is, that is, the door and the windows are all closed, and the alarm system 80 operates normally. If so, the steady state information is transmitted to the smart key controller 70.

If the vehicle state information is abnormal (S 211), the smart key controller 70 outputs the abnormal state information to the door handle unit 60 to indicate that the state of the vehicle is abnormal through the abnormal display unit 67. (S2111).

However, when the state of the vehicle is normal, the smart key controller 70 outputs a close signal to the BCM 82 (S 212), and when the BCM 80 outputs a drive signal to the actuator 84 ( S 213, the actuator 84 locks the door (S 214).

Subsequently, the smart key controller 70 checks whether the alarm system 80 is normal (S 215), and if it is normal, indicates that the alarm system 80 is normal through the normal display unit 66 (S 216). The abnormality display unit 67 indicates that the current vehicle is in an abnormal state (for example, an indication that the alarm system is off or is in a breakdown state) (S 2151).

Here, examples of the state display through the normal display unit 66 and the abnormal display unit 67 are shown in Table 1 (the example of Table 1 may be set differently in some cases).

division condition Display contents Door open Steady state B… B Alarm system works while parking B… B… R… R system error R-R-R-R-R-R-R Door lock Steady state B-B-B Alarm system failure B-B-B... R… R Door / window opening R… R… R… R system error R-R-R-R-R-R-R

(B means normal display part, R means abnormal display part respectively,… connection means intermittent light,-connection means continuous light.)

The present invention made as described above provides the effect of more actively transmitting the state of the vehicle through the visual means installed on the door handle when the driver contacts the door handle to open or close the car door.

In addition, the present invention provides an effect of efficiently transmitting the status information of the vehicle visually and intuitively by transmitting the status information of the vehicle by setting the lamps of different colors and the flashing intervals of the lamps.

Claims (10)

Smart key system consisting of a smart key possessed by the driver and a door handle unit installed on the door handle, and a smart key controller wirelessly connected to the smart key and the door handle unit to control the opening and closing of the door, and a body control module and an alarm system. In the vehicle security status display method of the mounted vehicle, (a) to open the door of the car, (a1) when the unlock signal is input from the open sensor of the door handle unit, authenticating the smart key by the smart key controller; (a2) the smart key controller changing the door to an unlocked state through the vehicle body control module if the smart key is authenticated; (a3) the smart key controller receiving security state information of the vehicle from the alarm system and confirming whether it is normal; and (a4) opening the door, wherein the smart key controller transmits a normal signal to the driver if the security state information is normal and transmits an abnormal signal to the driver if abnormal; (b) to close the door of the car, (b1) when the lock signal is input from the lock switch of the door handle unit, authenticating the smart key by the smart key controller; (b2) if the smart key is authenticated, the smart key controller receiving vehicle status information from the vehicle body control system of the vehicle and checking whether it is normal; and (b3) wherein the smart key controller transmits a normal signal to the driver when the vehicle state information is normal, locks the door through the vehicle body control module, and transmits an abnormal signal to the driver to confirm the abnormality. Closing the door; Vehicle security status display method comprising a. The method of claim 1, wherein the security state information includes information on whether the car door and the window are opened or closed and whether the alarm system operates normally. The method of claim 1, wherein the normal signal and the abnormal signal are output in different colors. The method of claim 1, wherein the step (b3) of the step (b) further comprises the step of confirming whether or not the alarm system is normal, and if the normal signal, and if the abnormal signal to the driver abnormality Vehicle security status display method. A smart key having a first antenna and a second antenna for wireless communication and outputting an authentication signal for opening / closing a door of a vehicle; A smart key controller performing authentication processing by wirelessly communicating with the first antenna of the smart key through a third antenna; An unlock sensor for outputting the unlock signal for opening the door to the smart key controller, a lock switch for outputting the lock signal for door closing to the smart key controller, a display unit for outputting at least two colors of light, and the smart key controller. A first antenna which is connected and wirelessly communicates with the second antenna, and transmits signals of the unlock sensor and the lock switch to the smart key controller and inputs normal state information or abnormal state information of the vehicle input from the smart key controller. A door handle part including a door controller configured to receive and display a normal or abnormal state through the display part; Smart key system having a vehicle security status display function comprising a. The smart key having a vehicle security status display function according to claim 5, wherein the door handle unit further comprises a power supply unit for supplying power for driving the unlock sensor, the lock switch, the display unit, and the door controller. system. According to claim 5, The smart key controller is connected to the alarm system for monitoring the security state of the vehicle and the vehicle body control module of the vehicle, obtains the security state information of the vehicle and whether the door and window opening and closing information, the normal state information B. Smart key system having a vehicle security status display function that outputs abnormal status information and controls the vehicle body. The smart key system according to claim 7, wherein the abnormal state information is at least one of an operation of the alarm system, a failure of the alarm system, and an opening of a door or a window during parking. The smart key system having a vehicle security status display function according to claim 5, wherein the display unit comprises a first display unit displaying the normal state information and a second display unit displaying the abnormal state information. 10. The smart key system having a vehicle security status display function according to claim 9, wherein the first display portion is composed of a blue LED and the second display portion is composed of a red LED.

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