KR20100028721A - Smart key system for a vehicle with external operating coil - Google Patents

Abstract

PURPOSE: A smart key system for a vehicle with an external operating coil is provided to perform code authentication for starting an engine even if the smart key system is not operated. CONSTITUTION: A smart key system(1) for a vehicle comprises a start button, an operation displaying unit(17c), a smart key module(10), an immobilizer(17), an indicator(70), and an external operating coil(17a). An output of the operation displaying unit is changed according to steps for starting an engine. The smart key module performs user authentication with a wireless remote controller(30) by operation of the start button. The immobilizer performs the user authentication by a transponder(37) of the wireless remote controller. The indicator displays an operation state of the immobilizer. The external operating coil is operated by the immobilizer.

Description

SMART KEY SYSTEM FOR A VEHICLE WITH EXTERNAL OPERATING COIL}

The present invention relates to a smart key system for a vehicle equipped with an external actuating coil, and having an external actuating coil provided to surround the start button to increase the contact rate of the smart key wireless remote control and minimize interference between components. The present invention relates to a smart key system for a vehicle having an external working coil.

Generally, a smart key system is a system in which a driver or owner of a vehicle wirelessly controls a vehicle in a proximity position of the vehicle without using a mechanical key. Currently, the door of the vehicle is unlocked. And lock, start of the vehicle.

Here, the start button for starting the engine is provided on the side of the instrument panel instead of the existing key cylinder, and when the user presses the start button to start the engine, the smart key system searches for the smart key wireless remote control and authenticates the user. Conduct.

Then, when it is confirmed that the user authentication result is a registered user, a control signal for starting the engine is output to the engine ECU (Electronic Control Unit), and thus the engine is started.

1 is a block diagram showing the configuration and operation of a general smart key system for a vehicle. As shown in FIG. 1, the vehicle smart key system 100 equipped with an external operation coil may turn on the smart key wireless remote control 130 while the user presses the start button (①) and the engine start (START) indicator is emitted. (On) and (②), the smart key module 110 receives the user authentication code while searching for the smart key wireless remote control 130 to perform wireless authentication (③).

Here, the LF antenna 113 is disposed in each part of the vehicle, and transmits the LF authentication request signal from the ECU 111 of the smart key module 110 to search for the smart key wireless remote control 130.

Accordingly, the smart key wireless remote control 130 receives the LF authentication request signal through the LF receiver 135, the microcontroller 131 receives the user information registered according to the LF authentication signal request signal to the RF transmitter ( 133 is transmitted back to the smart key module 110 (③).

Therefore, when the RF signal is received from the RF receiver 115 of the smart key module 110 and the authentication is completed in the smart key module 110, the engine ECU 150 transmits a control signal for starting the engine. (④).

In FIG. 1, reference numeral 117 is an immobilizer provided in the smart key module 110, and 137 is a transponder provided in the smart key wireless remote controller 130.

FIG. 2 is a block diagram schematically illustrating an operation process when smart key authentication of the vehicular smart key system of FIG. 1 fails. As shown in FIG. 2, when smart key authentication fails (③), a smart key wireless remote control 130 having a built-in transponder 137 must be inserted into a slot of the immobilizer 117 to perform immobilizer authentication. (④).

The reason for inserting the smart key wireless remote control 130 into the slot is that user authentication can be performed with the transponder 137 by the operation coil of the immobilizer 117.

Therefore, the smart key wireless remote control is inserted into the slot to close the transponder 137 and the working coil embedded in the slot. Accordingly, the working coil embedded in the slot turns on the transponder 137 to authenticate the user. Perform authentication by sending and receiving an immobilizer authentication code for.

Then, when code authentication for the user is completed, the control signal is transmitted from the ECU 111 of the smart key module 110 to the engine ECU 150 to start the engine, and the procedure for starting the engine is performed. (⑤).

3 is a block diagram schematically illustrating another operation process when smart key authentication of the vehicular smart key system of FIG. 1 fails. As shown in FIG. 3, when the wireless authentication fails (③), the smart key wireless remote control 130 having the transponder 137 is contacted with the start button unit in which the operation coil for the immobilizer 117 is embedded ( ④).

Then, the operation coil embedded in the start button unit turns on the transponder 137 and performs code authentication for the user through the immobilizer 117 (⑤) to proceed with the procedure for starting the engine. (⑥).

However, in a vehicle equipped with a smart key system, when the wireless authentication fails and the user authentication for starting the engine fails, the driver repeatedly operates only the start button and starts the engine by using the slot of the immobilizer. There was a difficulty.

In addition, when the activation button for the immobilizer is integrated or embedded in the start button, transponder position alignment due to the interference between the smart key wireless remote control and the start button is not easy, and operation is performed by not outputting a separate display according to authentication to the user. There was a problem that it is difficult to pinpoint the failure site in the case of not this.

The present invention has been made to solve the above problems, when the user authentication by the smart key in the vehicle equipped with the smart key system, the data according to the smart key authentication, immobilizer authentication status is displayed to the user through the indicator lights By doing so, the user can determine the operation state, and to provide a smart key system for a vehicle equipped with an external operation coil made to distinguish whether or not the failure site.

Still another object of the present invention is to provide a smart key system for a vehicle having an external operation coil which can easily check whether the engine is started and minimize interference between the smart key wireless remote control and the start button.

In order to achieve the above object, the present invention provides a start button operated to drive an engine of a vehicle, an operation display unit built in the start button, the output of which is changed and lit according to a step for starting the engine, and the start button. Smart key module for user authentication with wireless remote control, immobilizer for user authentication using transponder built in wireless remote control, indicator for displaying the operation status of the immobilizer and external operation coil operated by immobilizer Includes, when the engine fails to start the engine by the wireless authentication of the wireless remote control and the smart key module by operating the start button, the immobilizer operates the indicator, the user to the wireless remote control with a built-in transponder to the indicator When approaching, the immobil When laser is characterized in that it performs the authentication code for the engine start-up by transmitting a signal for searching for a transponder of the wireless remote controller is operated to close the external coil to operate the start button.

In addition, the external actuating coil is formed in a shape surrounding the outer circumference of the start button, and is mounted inside the dash panel in which the external actuating coil is mounted, and when the smart key wireless remote control contacts the start button, the inside of the dash panel Mounting The external operating coil and the transponder are positioned adjacent to each other.

Here, the immobilizer including the external operation coil is pre-mounted from the inside of the vehicle to the outward direction, the start button is post-assembled from the outside to the inward direction, characterized in that the external operation coil and the start button is located adjacent to do.

In addition, the indicator is characterized in that the output is changed to distinguish the authentication by the smart key wireless remote control and the authentication by the immobilizer.

In addition, the start button is characterized in that it is inserted in the center of the external actuating coil to authenticate the transponder in a wider range than the size of the start button.

As described above, according to the present invention having the configuration as described above, when the engine is not started by the smart key system in a vehicle equipped with the smart key system, a signal indicating that there is a problem in the operation of the smart key system is displayed. By turning on the lamp, the user can grasp it so that the code authentication for starting the engine can be performed even if the smart key system is not operated.

In addition, by forming the external actuating coil to surround the outer circumferential surface of the start button, it is possible to minimize the interference phenomenon and noise between each component and to increase the contact rate of the smart key wireless remote control.

 According to the present invention, when a failure occurs in wireless authentication of the smart key system in a vehicle equipped with the smart key system, the indicator of the immobilizer turns on a failure signal, and the user who detects the failure signal detects the smart key wireless remote control on the operation display unit. The operating coil transmits a signal for searching for the transponder, and the smart key wireless remote controller receives the search signal of the transponder and transmits code information for immobilizer authentication, and the immobilizer receives the code information according to the authentication result. By changing the lighting of the indicator of the immobilizer, the user can visually distinguish the authentication status.

Hereinafter, with reference to the accompanying drawings, an embodiment according to the present invention will be described in detail.

Figure 4 is a block diagram showing the configuration and operation of the smart key system for a vehicle equipped with an external operating coil according to the present invention.

As shown in FIG. 4, the vehicle smart key system 1 having an external operating coil according to the present invention includes a start button receiving an input from a user for starting the engine, and confirming the user with the input of the start button. Smart key module 10 for authenticating and outputting a signal for starting the engine to the engine ECU (Electronic Control Unit), smart key wireless remote control 30 for receiving the authentication request of the smart key module 10 to transmit a user code ), The indicator 70 is turned on according to the state of the immobilizer authentication.

Here, the start button is composed of a push button and an operation display unit 17c, and displays an engine start or engine stop state whenever a user input is received.

The smart key module 10 includes an LF antenna 13 for transmitting a user authentication request to the smart key wireless remote control 30 and an RF receiver for receiving a response of the smart key wireless remote control 30 to the user authentication request ( 15), an immobilizer 17 for authenticating the transponder 37 when wireless authentication is not possible, and an ECU 11 for controlling the respective components 13, 15, 17. The immobilizer 17 also has an external actuating coil 17a.

In addition, an indicator 70 is provided between the start button and the external operation coil 17a, and the indicator 70 lights up to output the immobilizer authentication result to the user.

The smart key wireless remote control 30 also includes a microcontroller 31, an RF transmitter 33, an LF receiver 35 and a transponder 37.

When the user presses the start button (①), the operation display unit 17c is turned on while turning on the smart key module 10 (②), the smart key module 10 is a smart key wireless remote control 30 ) Transmits an authentication request and receives a user authentication code for the authentication request to perform wireless authentication (③).

That is, the LF antenna 13 is disposed in each part of the vehicle and transmits the authentication code for user authentication in the LF signal to the smart key wireless remote control 30.

Accordingly, when the smart key wireless remote control 30 outputs an authentication code as an RF signal in response to the LF signal for user authentication, the smart key module 10 receives the RF signal from the RF receiver 15. Output to the ECU 11.

Therefore, the ECU 11 checks whether the registered user is correct and performs smart key authentication (③).

When it is determined that the user is registered in the smart key module 10, the authentication is completed and the control signal for starting the engine is output from the ECU 11 to the engine ECU 50, and the indicator 70 is turned on. Inform the user that authentication succeeded (④).

On the other hand, when smart key authentication using the LF signal and RF signal fails, the user authentication for starting the engine is performed using the immobilizer 17 and the transponder 37 according to the present invention. 17) and the authentication using the transponder 37 are demonstrated below.

5 is a perspective view illustrating an external type operating coil according to the present invention, and FIG. 6 is a perspective view illustrating a state in which the external operating coil and the start button according to the present invention are assembled.

As shown in FIGS. 5 and 6, the external actuating coil 17a of the immobilizer 17 is located and formed in the front portion of the immobilizer 17.

The external actuating coil 17a is formed to surround the outer surface of the start button, is assembled to be adjacent to the start button while forming a ring shape or a closed curve surrounding the start button, and a central portion of the external actuating coil 17a. The furnace is interpolated with a start button.

In addition, when the immobilizer 17 and the start button are assembled, the immobilizer is pre-mounted in the outward direction from the inward direction of the vehicle, and then the start button is assembled to each other in the outward direction of the vehicle.

In addition, an indicator 70 is located between the start button and the external actuating coil 17a, and is mounted and positioned at a predetermined position of the start button mounting portion 71.

The indicator 70 is provided to be turned on when authentication is completed and the operation of the immobilizer 17 is normal, and may be manufactured as a single piece integrally with the start button.

In addition, since the electrical connection relation regarding the lighting of the indicator 70 can be easily performed by a conventional method, the detailed description thereof will be omitted.

In addition, the indicator 70 is not lit when the user authentication is in progress or user authentication fails, it is also preferably made to be turned on so that the user can confirm only when the authentication is completed.

FIG. 7 is a block diagram schematically illustrating an operation process according to a first embodiment when smart key authentication fails in a vehicle smart key system equipped with an external operation coil of FIG. 4.

As shown in FIG. 7, the smart key using the LF antenna 13 of the smart key module 10, the RF receiver 15, and the RF transmitter 33 and the LF receiver 35 of the smart key wireless remote control 30. If the authentication fails, the operation process is as follows.

First, the process of ①, ② is as shown in Figure 4, the smart key wireless remote control 30 did not receive the signal of the LF antenna 13 or the smart key module 10 of the signal of the RF transmitter 33 May not be received normally, and thus wireless authentication may not be possible (③).

Therefore, when smart key authentication fails through the RF signal and the LF signal, it is necessary to perform user authentication for starting the engine using the immobilizer 17 and the transponder 37 according to the present invention.

First, the immobilizer 17 displays the failure of smart key authentication to the user through the indicator 70 (④), and the user who detects the smart key wireless remote control 30 of the immobilizer 17, the external operating coil (17a) (⑤) to perform immobilizer authentication (⑥).

At this time, since the external actuating coil 17a is formed in a shape surrounding the outer circumference of the start button, the external actuating coil 17a and the even when a user contacts the smart key wireless remote control 30 with the start button. The probability that the transponder 37 inside the smart key wireless remote control 30 will come in contact while eliminating interference such as noise will increase.

Here, when the transponder 37 is adjacent to the external working coil 17a of the immobilizer 17, the immobilizer 17 is turned on. When the immobilizer 17 is operated, the transponder 37 is wireless. Receives an encryption code that is communicated with and performs the operation.

Then, the ECU 11 determines the operation result of the transponder 37 received through the external working coil 17a. At this time, immobilizer authentication does not succeed due to a failure of the transponder 37 or the immobilizer 17. If not, the indicator (70) is displayed to the user to inform the failure of the immobilizer 17 (⑦).

On the other hand, when the immobilizer authentication is successful, the engine ECU 50 outputs a control signal for starting the engine, and at the same time, the indicator 70 lights to inform the user of the authentication success (⑦).

That is, the indicator 70 only performs lighting for the user authentication, and the operation display unit only performs lighting for the engine start (IGN, ACC, etc.).

At this time, the smart key authentication success, smart key authentication failure, during the immobilizer operation, the immobilizer authentication success, immobilizer authentication failure is displayed through the indicator 70 as shown in Table 1 below.

Working condition Indicator display Smart Key Authentication Success (No indication) Smart key authentication failed RED RED RED RED ‥ Immobilizer is running RED BLUE RED BLUE RED BLUE RED BLUE ‥ Immobilizer certification failure RED RED RED RED RED RED RED RED ‥ Immobilizer Certification Success BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE ‥

As described in Table 1, when the smart key authentication is successful, the indicator 70 is not turned on because the engine is started even though the user does not perform any other operation.

However, if the smart key authentication fails, the user should send or receive data on the smart key authentication failure because the user has to place or contact the smart key wireless remote control 30 close to the external operation coil 17a. .

Therefore, the red color periodically means an alarm, and other colors may be used even if the color is not red.

Then, while the immobilizer 17 is being operated, the red and blue lights are alternately turned on periodically, for example, whether the user is properly contacting the smart key wireless remote controller 30 with the operation display unit 17c. This is to make sure that.

In addition, when the immobilizer 17 fails to authenticate the user, the red color is continuously lighted to distinguish it from the smart key authentication failure, and when the immobilizer 17 succeeds in user authentication, the blue light is continuously lit.

The blue and red colors may be changed to different colors, and any type and color may be used as the display surface capable of distinguishing the four operation states.

In addition, it is also possible to change the color or lighting algorithm to distinguish between smart key authentication success (no user interaction required) and immobilizer authentication success (requires user interaction), which allows the user to distinguish between immobilizer authentication status. It is desirable to be lit so that.

FIG. 8 is a diagram illustrating the operation of FIG. 7 in detail and refer to FIG. 7. As illustrated in FIG. 8, the external operation coil 17a is provided in an operation display unit 17c provided at an outer circumference of the start button, and the indicator 70 is provided with a BI-COLOR LED.

Here, when the smart key authentication fails, if the red color of the smart key authentication failure on the indicator 70 periodically turns on, the user recognizes it and contacts the smart key wireless remote control 30 with the external operation coil 17a. To be close to the operation indicator 17c.

At this time, the user does not recognize the external actuating coil 17a and often contacts the smart key wireless remote control 30 with the start button. In this case, the user applies the smart key wireless remote control 30 to the start button. The external working coil 17a is formed in a position and a shape that can be in contact with the external working coil 17a even when it is in contact.

Then, red and blue are periodically lit on the indicator 70 indicating that the immobilizer 17 is in operation. Then, if authentication is successful, the lights are lit in blue and output to the user. ) Lights up in red.

Therefore, even if the start button is not further pressed, the transponder 37 can be searched by the immobilizer 17 to perform code authentication for starting the engine.

9 is a diagram illustrating an operation sequence of the smart key system for a vehicle equipped with an external operation coil according to the present invention, and FIG. 10 is a diagram illustrating an immobilizer authentication process in detail in the operation sequence of FIG. 9.

First, as shown in FIG. 9, when the user authentication by the smart key system fails and the engine is not started, the immobilizer notifies the user of a signal indicating that a failure occurs in the smart key system.

Recognizing this, the user approaches the smart key wireless remote control to the external operation coil, and the external operation coil of the immobilizer built in the operation display unit searches for the transponder embedded in the smart key wireless remote control and performs code authentication.

That is, when the engine start button is activated (S11), the smart key system is activated (S13), and the smart key module searches for the smart key wireless remote control (S15).

When the authentication of the above-described smart key is started (S20), wireless authentication is performed using the LF antenna of the smart key module, the RF receiver, the RF transmitter of the smart key wireless remote control, and the LF receiver.

If a case in which the smart key authentication fails in the smart key module fails in the smart key authentication (S21), the indicator is turned on to indicate data related to the smart key authentication failure (S23).

Immobilizer authentication then begins, which is described with reference to FIG. 12.

When the smart key wireless remoter approaches the external operation coil embedded in the operation display unit by the user (S30-1), the immobilizer operates (S30-2) to operate the external operation coil of the immobilizer (S30-3).

In addition, the transponder is operated due to the operation of the external operation coil, receives the authentication code of the external operation coil (S30-4) to start the operation, and outputs the operation result (S30-5) the external operation coil of the immobilizer When transmitting this, the external working coil of the immobilizer receives it (S30-6).

9 again, after confirming whether the authentication of the immobilizer fails in the ECU of the smart key module (S31), when the authentication fails, the indicator is turned on to indicate data related to the immobilizer authentication failure (S35).

If the authentication is successful in the above steps (S21, S31), the indicator lights up to inform the user that the authentication is successful, and outputs a control signal for starting the engine from the ECU of the smart key module to the engine ECU, the engine is started. (S40).

In this case, it is preferable that the lighting color of the operation display unit is changed according to the start-up stage of the engine, and the user can check the vehicle status of each stage like the indicator using the lighting color and on / off.

Accordingly, in the vehicle smart key system provided with the external operation coil according to the present invention, the user may recognize that there is a problem in using the smart key system of the vehicle on the basis of the signal lighted on the indicator. The batteries in the remote control can be replaced or the car's smart key system can be maintained.

In the above described exemplary embodiments of the present invention by way of example, the scope of the present invention is not limited only to this specific embodiment, and those skilled in the art within the scope of the claims of the present invention Changes may be made as appropriate.

1 is a block diagram showing the configuration and operation of a typical vehicle smart key system.

FIG. 2 is a block diagram schematically illustrating an operation process when smart key authentication of the vehicle smart key system of FIG. 1 fails. FIG.

3 is a block diagram schematically illustrating another operation process when smart key authentication of the vehicular smart key system of FIG. 1 fails.

Figure 4 is a block diagram showing the configuration and operation of the smart key system for a vehicle equipped with an external working coil according to the present invention.

Figure 5 is a perspective view of the external working coil according to the present invention.

Figure 6 is a perspective view showing a state in which the external operating coil and the start button according to the invention assembled.

FIG. 7 is a block diagram schematically illustrating an operation process according to the first embodiment when smart key authentication fails in a vehicle smart key system equipped with an external operation coil of FIG. 4; FIG.

8 is a view illustrating in detail the operating process of FIG.

9 is a view showing the operation sequence of the smart key system for a vehicle equipped with an external operating coil according to the present invention.

10 is a diagram illustrating in detail the immobilizer authentication process of the operating sequence of FIG.

<Brief description of reference numerals for the main parts of the drawings>

1: Automotive smart key system with external actuation coil

10: Smart Key Module 11: ECU

13: LF antenna 15: RF receiver

17: immobilizer 17a: external actuation coil

17c: operation display unit 30: smart key wireless remote control

31: Microcontroller 33: RF Receiver

35: LF receiver 37: transponder

50: engine ECU 70: indicator

Claims (5)

A start button operated to drive the engine of the vehicle, An operation display unit which is built in the start button and changes in output according to a step for starting the engine; Smart key module for performing a user authentication with a wireless remote control by the operation of the start button, Immobilizer that performs user authentication using a transponder built into the wireless remote control, An indicator indicating an operating state of the immobilizer and Includes an external actuation coil operated by an immobilizer, When the engine fails to start by the wireless authentication between the wireless remote control and the smart key module by operating the start button, the immobilizer operates the indicator, When the user approaches the indicator with a wireless remote controller with a built-in transponder, the immobilizer activates the external operation coil in proximity to the start button to transmit a signal for searching for the transponder of the wireless remote controller to start the engine. Smart key system for a vehicle with an external actuating coil, characterized in that for performing code authentication. The method according to claim 1, The external actuating coil is formed in a shape surrounding the outer circumference of the start button, and is mounted inside the dash panel in which the external actuating coil is mounted. When the smart key wireless remote control contacts the start button, the dash panel is mounted inside the dash panel. The smart key system for a vehicle having an external working coil, wherein the external working coil and the transponder are positioned adjacent to each other. The method according to claim 2, The immobilizer including the external actuating coil is pre-mounted from the inside of the vehicle to the outward direction, and the start button is post-assembled from the outside to the inward direction so that the external actuating coil and the start button are adjacent to each other. Automotive smart key system with an operating coil. The method according to claim 1, The indicator is a vehicle smart key system having an external operation coil, characterized in that the output is changed to distinguish between the authentication by the smart key wireless remote control and the immobilizer. The method according to claim 1, The start button is a smart key system for a vehicle having an external actuation coil, characterized in that inserted into the center of the external actuation coil so as to authenticate the transponder in a wider range than the size of the start button.

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