KR101001103B1 - Vehicles control system with trigger and method thereof - Google Patents

Abstract

The present invention provides a vehicle control system and method for controlling a vehicle using a smart key, wherein a user operates the trigger input unit provided in the vehicle, and the low frequency signal for wireless communication for requesting user authentication is performed by the smart key in the vehicle control apparatus. In the smart key, the low frequency signal transmitted from the vehicle is converted into a power source, and the ID information for user authentication is transmitted to the vehicle control device using the converted power source, so that the vehicle and user authentication can be performed even when the smart key is exhausted. The present invention relates to a vehicle control system and a method including a trigger input unit capable of opening and closing a door and starting an engine of a vehicle.

The vehicle control system having a trigger input unit according to the present invention includes at least one smart key having ID information, at least one of a front side, a rear side, or a side surface of the vehicle, and a trigger input unit for detecting a user's input and generating a trigger signal. The vehicle control apparatus transmits a low frequency signal for requesting ID information to a smart key close to the vehicle according to the trigger signal received from the input unit, and performs user authentication and vehicle control using the ID information received from the smart key by the ID information request. The smart key rectifies the low frequency signal received from the vehicle control device and uses the smart key as an operating power source for transmitting ID information to the vehicle control device.

Smart Key, Vehicle, ECU, Vehicle Control, Trigger

Description

Vehicle control system with trigger input unit and method thereof {Vehicles control system with trigger and method

The present invention relates to a vehicle control system and a method thereof, and more particularly, to a vehicle control device for authenticating a smart key and a user proximate to a vehicle as a user having a smart key drives a trigger input unit provided in the vehicle. During the wireless communication, the smart key converts the low frequency signal for wireless communication received from the vehicle control device into a power source and uses it to perform user authentication between the vehicle and the smart key even if the power key is exhausted. The present invention relates to a vehicle control system and a control method including a trigger input unit for supporting performance of a vehicle control such as starting.

In general, a vehicle control system enables a driver carrying a smart key to open or close a vehicle door or start an engine without a separate key operation, and has a unique ID to prevent the risk of theft. The smart key transmits this unique ID to an electronic control unit (ECU) installed in the vehicle, and the ECU reads the received unique ID to perform user authentication. After the authentication is completed, the ECU is linked to start the engine or to open or close the door or trunk.In the conventional mechanical key made of metal, it is possible to control the opening and closing of the door at a long distance. Has developed into a smart key that can be.

However, in the conventional smart key, when the user carrying the smart key enters the vehicle, the ECU of the vehicle detects the user's smart key by performing wireless communication with the user's smart key, and the battery of the smart key is exhausted. Since the smart key does not perform wireless communication with the ECU, there is a problem that the ECU cannot detect the smart key and thus cannot perform operations such as opening and closing the door of the vehicle and controlling the engine.

In addition, if the power of smart key is exhausted and you need to manually open / close the door of the vehicle and start the engine by using a separate emergency key, that is, mechanical key, the mechanical key can be easily duplicated and the vehicle can be stolen. In addition, there was a problem that the alarm system of the vehicle operates to cause noise damage to the surrounding people while the alarm sounds.

The present invention for solving the conventional problems is provided with a trigger input unit for supporting a user having a smart key to perform a user authentication between the vehicle and the smart key exhausted by driving the trigger input unit provided in the vehicle Provides a vehicle control system.

In order to achieve the above object, a vehicle control system having a trigger input unit according to the present invention is provided with at least one smart key having ID information, at least one of the front, rear or side of the vehicle, and detects a user's input to trigger the signal. And transmits a low frequency signal for requesting ID information to the smart key proximate to the vehicle according to a trigger input unit for generating a signal and the trigger signal received from the trigger input unit, and uses the ID information received from the smart key by the ID information request. And a vehicle control device configured to perform user authentication and vehicle control. The smart key rectifies the low frequency signal received from the vehicle control device and uses the ID information as an operation power source for transmitting the ID information to the vehicle control device.

In a vehicle control method having a trigger input unit according to the present invention, a trigger signal receiving step of receiving a trigger signal from a trigger input unit in which a vehicle control device senses a user input, and requesting ID information by a smart key close to the vehicle by the vehicle control device A low frequency transmission step of transmitting a low frequency signal, an ID information receiving step of receiving, by the vehicle control apparatus, ID information from the smart key using the power generated by receiving the low frequency signal and rectifying the received low frequency signal as an operating power source And checking, by the vehicle control apparatus, the ID information and the ID information stored in the storage unit to determine whether the ID information is the same ID information, and performing vehicle control according to the verification result.

The vehicle control method having a trigger input unit according to the present invention includes a low frequency reception step in which a smart key receives a low frequency signal for requesting ID information from the vehicle control apparatus, by using a power source in which the smart key rectifies the low frequency signal. And ID information transmitting step of transmitting ID information to the vehicle control apparatus.

According to the present invention, the smart key receives a low-frequency signal for wireless communication for user authentication from the vehicle control device, and converts the received low-frequency signal into a power source to use the smart key even when there is no power of the smart key. Since the door can be opened and closed, there is an effect to promote the user's convenience.

In addition, according to the present invention, it is not necessary to provide a separate emergency key on the smart key in preparation for a failure of the smart key or the battery power, and it is possible to prevent theft of valuables in the vehicle due to illegal copying of the mechanical vehicle key.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention belongs and are not directly related to the present invention are omitted. This is to more clearly communicate without obscure the core of the present invention by omitting unnecessary description.

On the other hand, in the accompanying drawings, some components are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

1 is a block diagram of a vehicle control system having a trigger input unit according to an exemplary embodiment of the present invention. Referring to FIG. 1, a vehicle control system 100 having a trigger input unit according to the present invention includes a trigger input unit 10, a vehicle control apparatus 20, and a smart key 30.

The trigger input unit 10 is any one of a pressure sensor, a capacitive sensor, a touch pad, or a keypad. As shown in FIG. 2, the trigger input unit 10 includes one or more vibration inputs or touch inputs of a user who knocks or touches the vehicle glass. Generates a trigger signal as detected.

3 is a configuration diagram of a vehicle control apparatus of the vehicle control system of FIG. 1. Referring to FIG. 3, the vehicle control apparatus 20 according to the exemplary embodiment of the present invention includes a communication unit 21, a memory unit 22, and an ECU 23.

The communication unit 21 supports wireless communication between the vehicle control device 20 and the smart key 30, and includes a first low frequency communication module 24 and a first high frequency communication module 25 for this purpose. The first low frequency communication module 24 transmits a low frequency signal including an ID information request signal to the depleted smart key 30, and includes a low frequency signal including ID information from the smart key 30 according to the ID information request signal. It is provided for receiving a signal. In addition, the first high frequency communication module 25 is provided to perform wireless communication using the smart key 25 and the high frequency signal.

The first low frequency communication module 24 and the first high frequency communication module 25 are connected to a plurality of micro antennas for wireless communication with the smart key 30, and in particular, the first low frequency communication module 24 is a coil antenna 26. ). The coil used for the coil antenna 26 is formed by winding a certain number of turns, and the number of turns of the coil may be arbitrarily changed according to the use of those skilled in the art.

The communication unit 21 may receive a high-voltage radio wave having an unexpected large voltage from the outside while the wireless control with the smart key 30 may damage the vehicle control device 20, so that a high voltage prevention module may be provided to prevent this. Can be. The communication unit 21 may further include a low pass filer (LPF) and a data slicer to detect the ID information in the low frequency signal including the ID information transmitted from the smart key 30 to the vehicle control apparatus 20. . That is, the communication unit sends miscellaneous electromagnetic waves received from the outside of the vehicle to the LPF, detects a low frequency signal including the ID information transmitted from the smart key 30, takes over the detected low frequency signal to the data slicer, and corresponds to the ID information in the data slicer. The ID information transmitted by the smart key 30 is detected by filtering out the electromagnetic waves.

The memory unit 22 stores ID information, which is authentication information unique to the smart key 30, for user authentication with the smart key 30.

The ECU 23 outputs a control signal for opening or closing the door of the vehicle or starting the engine to the door or the engine of the vehicle. When the ECU 23 receives the trigger signal from the trigger input unit 10, the vehicle 23 receives the ID information from the smart key 30. The low frequency signal (hereinafter referred to as the first low frequency signal) including the ID information request signal is transmitted to the smart key 30 adjacent to the key. When the smart key 30 transmits a low frequency signal (hereinafter referred to as a second low frequency signal) including ID information in response to the first low frequency signal, the ECU 23 transmits the signal from the smart key 30 through the communication unit 21. Receive a second low frequency signal.

The ECU 23 compares the ID information detected by the communication unit 21 with the ID information stored in the memory unit 22 to perform user authentication, and then controls opening or closing of the door of the vehicle or starting of the engine according to the result. Outputs a control signal.

4 is a configuration diagram of a smart key of the vehicle control system of FIG. Referring to FIG. 4, the smart key 30 includes a transceiver 31, a storage 32, a controller 33, and a rectifier 34.

The transceiver 31 includes a second low frequency module 35 and a second high frequency module 36 to perform wireless communication with the vehicle control apparatus 20. The second low frequency module 35 and the second high frequency module 36 of the transceiver 31 are for performing wireless communication with the vehicle control apparatus 20 using a low frequency signal or a high frequency signal, and the second high frequency module 36 ) Performs wireless communication using the high frequency signal with the first high frequency module 25 of the vehicle control device 20, and the second low frequency module uses the low frequency signal with the second low frequency module 24 of the vehicle control device. Do this.

The transceiver 31 is connected to a plurality of micro antennas for wireless communication with the vehicle control device 20. In particular, the second low frequency communication module 35 of the transceiver 31 is a coil formed by winding a coil a predetermined number of times. It is connected to the antenna 37.

The storage unit 32 stores unique ID information for performing user authentication with the vehicle control device 20, and the ID information stored in the storage unit 32 is stored in the memory unit 22 of the vehicle control device 20. It is the same as the stored ID information.

When the first low frequency signal is received from the vehicle control apparatus 20 through the transceiver 31, the controller 33 transmits the signal to the storage unit 32 according to the ID information request signal detected by the rectifier 34 in the first low frequency signal. The stored ID information is transmitted to the vehicle control device 20.

When the rectifier 34 receives the first low frequency signal from the transceiver 31 in conjunction with the transceiver 31, the rectifier 34 rectifies the first low frequency signal to convert the power into a power source, and partially charges the power using the switched power source. Even when the power of the smart key 30 is exhausted by using the charged power, the controller 33 supports transmitting the ID information to the vehicle control apparatus 20. The rectifier 34 detects the ID information request signal included in the first low frequency signal in the process of rectifying the first low frequency signal and transmits the detected ID information request signal to the controller 33.

The rectifier 34 may be provided with an LPF and a data slicer to detect the ID information request signal from the first low frequency signal. The process of detecting the ID information request signal from the first low frequency signal by the rectifier is the same as the process of detecting ID information from the second low frequency signal by the communication unit of the vehicle control apparatus, and thus the detailed description thereof will be omitted.

In addition, the rectifier may be further provided with a high voltage protection unit for preventing the internal electronic device from being destroyed by the radio wave having an unexpected large voltage from the outside while performing wireless communication with the vehicle control device 20.

5 is a flowchart illustrating a vehicle control method including a trigger input unit according to an exemplary embodiment of the present invention. Referring to FIG. 5, a user performs a knock input (S80). That is, a user with a smart key knocks or touches the glass of the vehicle to drive the trigger input unit.

The trigger input unit 10 detects a user input (S81). That is, as the user holding the smart key knocks or touches the glass of the vehicle, the trigger input unit installed in the vehicle glass detects the vibration according to the knock or touch of the user.

The trigger input unit 10 generates a trigger signal according to the user's input (S82).

The trigger input unit 10 transmits the generated trigger signal to the vehicle control apparatus 20 (S83). The trigger input unit 10 transmits a trigger signal generated according to a user's input to the vehicle control apparatus 20 using a short range wireless communication method such as Zigbee, Bluetooth, or the like.

The vehicle control apparatus 20 receives a trigger signal from the trigger input unit 10 that detects a user input (S84).

The vehicle control apparatus 20 transmits a low frequency signal for requesting ID information to the smart key 30 (S85). The ECU 23 of the vehicle control apparatus 20 transmits the first low frequency signal to the smart key 30 to request ID information from the smart key 30 according to the trigger signal received from the trigger input unit 10. . The first frequency includes an ID information request signal for requesting ID information with the smart key 30.

The smart key 30 receives a low frequency signal for requesting ID information from the vehicle control apparatus 20 (S86). In this case, the smart key 30 receives an ID from the vehicle control apparatus 20 through the transceiver 31. Receive a first low frequency signal requesting information.

The smart key 30 rectifies the low frequency signal to charge the power (S87). That is, the smart key 30 rectifies and converts the first low frequency signal received through the transceiver 31 into power, and partially charges the power using the converted power. In this case, the rectifier 34 detects the ID information request signal from the first low frequency signal received through the transceiver 31 and transmits the ID information request signal to the ECU 23.

The smart key 30 transmits the ID information to the vehicle control device 20 (S88). The control unit 33 of the smart key 30 is a vehicle for the second low-frequency signal including the ID information stored in the storage unit 32 in accordance with the ID information request signal detected by the rectifier 34 from the first low frequency signal in step S86 It transmits to the control apparatus 20. FIG.

The vehicle control apparatus 20 receives ID information from the smart key 30 (S89). In this case, the ECU 23 may receive the second low frequency signal transmitted by the smart key 30 including the ID information via the first low frequency communication module 24 of the communication unit 21.

The vehicle control apparatus 20 checks ID information and performs vehicle control (S90). The ECU 23 of the vehicle control device 20 authenticates the user by matching the ID information detected by the communication unit 21 in the second low frequency signal with the ID information previously stored in the memory unit 22. When it is determined that the ID information is the same, the ECU 23 performs control of opening and closing the door of the vehicle and starting the engine. When the ID information is determined to be different, the ECU 23 indicates that the authentication of the smart key 30 has failed. Judgment is terminated.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

1 is a block diagram of a vehicle control system having a trigger input unit according to an exemplary embodiment of the present invention.

FIG. 2 is an exemplary diagram of a vehicle in which a trigger input unit is installed in the vehicle control system of FIG. 1.

3 is a configuration diagram of a vehicle control apparatus of the vehicle control system of FIG. 1.

4 is a configuration diagram of a smart key of the vehicle control system of FIG.

5 is a flowchart illustrating a vehicle control method including a trigger input unit according to an exemplary embodiment of the present invention.

Claims (6)

A smart key having ID information; At least one trigger input unit provided on the front, rear or side of the vehicle, the trigger input unit for detecting a user's input to generate a trigger signal; And In response to the trigger signal received from the trigger input unit, a low frequency signal for requesting ID information is transmitted to the smart key proximate to the vehicle, and user authentication and vehicle control using the ID information received from the smart key by the ID information request. It includes; a vehicle control device for performing; The smart key is a vehicle control system having a trigger input unit, characterized in that the low-frequency signal received from the vehicle control device is used as an operating power for transmitting the ID information to the vehicle control device. The method of claim 1, wherein the trigger input unit, Vehicle control system with a trigger input, characterized in that any one of a pressure sensor, capacitive sensor, touch pad or keypad. According to claim 2, The vehicle control device, Communication unit for performing a wireless communication; A memory unit in which ID information of the smart key is previously stored; When the trigger input unit receives the trigger signal, the device transmits a low frequency requesting ID information to the smart key, and compares the ID information received from the smart key with ID information previously stored in the memory unit in response to an ID information request. And an ECU configured to authenticate and control the door opening and starting of the vehicle. The method of claim 3, wherein the smart key, A transceiver for performing wireless communication; A storage unit in which ID information is stored; A rectifier for rectifying the low frequency signal to charge power; And And a control unit configured to receive a low frequency signal requesting ID information from the vehicle control apparatus through the transceiver and to transmit the ID information stored in the storage unit to the vehicle control apparatus. . A trigger signal receiving step of receiving a trigger signal from a trigger input unit in which the vehicle control apparatus senses a user input; A low frequency transmission step of transmitting, by the vehicle control apparatus, a low frequency signal for requesting ID information to a smart key close to a vehicle; An ID information receiving step of receiving, by the vehicle control apparatus, ID information from the smart key using power generated by rectifying the received low frequency signal and operating power; The vehicle control apparatus compares the ID information and the ID information stored in the storage unit to check whether the same ID information, and performs a vehicle control according to the result of the verification; trigger input unit comprising a Method of controlled vehicle system. A low frequency reception step of receiving, by the smart key, a low frequency signal for requesting ID information from the vehicle control apparatus; And an ID information transmitting step of transmitting, by the smart key, the ID information to the vehicle control apparatus using a power source rectified by the low frequency signal.

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