KR200210924Y1 - Automatic open/close apparatus of door lock for vehicle - Google Patents

Abstract

The present invention receives an RF signal having a unique ID from a portable remote controller and amplifies the RF signal to a predetermined level, and converts the RF signal from the receiver into a digital signal to confirm the reception level and receives the reference stored in the EEPROM. CPU to check whether the remote controller is within a predetermined distance from the vehicle in comparison with the level, and relay driver and relay to receive the open / close signal for opening / closing the door lock from the CPU to drive the relay to control the driving power of the door lock mechanism. It is composed of a door lock mechanism to open and close the door lock of the vehicle by receiving the driving power.

According to the present invention, the remote control automatically opens the door lock when the remote controller approaches the vehicle within a predetermined distance without operating a separate remote control button, and the door lock can be automatically locked when the remote controller moves away.

Description

Automatic open / close apparatus of door lock for vehicle}

The present invention relates to a vehicle door lock automatic opening and closing device, and more particularly, the door lock is automatically opened when the remote control approaches the vehicle within a predetermined distance without operating a separate remote control button (remote button), It relates to a vehicle door lock automatic opening and closing device to be automatically locked.

In general, the vehicle is provided with a door lock that can be opened and closed remotely, which is inconvenient for the driver to open or lock the door lock by pressing the open or locked button of the remote control.

The present invention is to solve the drawbacks described above, the vehicle door lock automatic opening and closing device to automatically open the door lock when the remote control is approaching the vehicle within a predetermined distance without operating a separate remote control button to automatically lock the door lock To provide.

1 is a block diagram showing a vehicle door lock automatic opening and closing device according to the present invention.

FIG. 2 is a diagram illustrating an embodiment of a remote controller shown in FIG. 1.

※ Explanation of code about main part of drawing ※

10: remote control 11: antenna

12 amplification transistor 13 oscillation transistor

14: Crystal 15: Micom

16: bias capacitor 20: receiver

30: CPU 40: relay drive unit

50a, 50b: relay 60: door lock mechanism

70: EEPROM

The vehicle door lock automatic opening and closing device according to the present invention for achieving the above object is a receiving unit for receiving an RF signal having a unique ID from a portable remote control and amplifying to a predetermined level, and receiving the RF signal from the receiving unit. A central processing unit (CPU) for confirming whether the remote controller is within a predetermined distance from the vehicle by comparing the received signal level by converting the digital signal to a reference reception level stored in an electrically erasable programmable ROM (EEPROM); and a door lock from the CPU. The relay driving unit receives the open / close signal for opening and closing the door to control the driving power of the door lock mechanism and the door lock mechanism for opening and closing the door lock for the vehicle by receiving the driving power through the relay. Characterized in that it comprises a.

In the vehicle door lock automatic opening and closing device according to the present invention, the remote control outputs an RF signal (ratio frequency signal) of the strength that the door lock mechanism is driven to open the door lock when approaching the vehicle within a predetermined distance (5 m) It is preferably configured to.

In the vehicle door lock automatic opening and closing device according to the present invention, the remote control is preferably configured to output an RF signal for opening and closing the door lock at a predetermined interval (0.8 msec ~ 5 sec) by the drive of the vehicle door lock mechanism.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

The present invention, as shown in Figure 1, receives a RF signal having a unique ID from the portable remote control 10, the receiver 20 for amplifying to a predetermined level and the RF signal from the receiver 20 is digital CPU 30 for checking whether the remote control 10 is within a predetermined distance from the vehicle by checking the reception level by converting the signal into a reference reception level stored in the EEPROM 70, and opening and closing the door lock from the CPU 30. Receives an open and close signal to drive the relay (50a, 50b) to drive the driving power of the door lock mechanism 60 and the relay driving unit 40, and receives the driving power through the relay (50a, 50b) It is comprised by the door lock mechanism 40 which opens and closes a vehicle door lock.

Here, the remote controller 10 is configured to output an RF signal of the strength that the door lock mechanism 60 is driven to open the door lock when approaching the vehicle within a predetermined distance (5 m), the door lock mechanism 60 for the vehicle It is configured to output an RF signal for opening and closing the door lock at a predetermined interval (0.8 msec to 5 sec) by driving of.

The operation of the remote control prior to the vehicle door lock opening and closing operation of the present invention will be described with reference to FIG. 2.

A unique ID (password) for each vehicle is output from the microcomputer 15, which is supplied to the oscillation transistor 13. Subsequently, the oscillation transistor 13 connected to the bias capacitor 16 oscillates the crystal 14 to multiply the RF signal having a unique ID at a predetermined frequency and supply it to the amplifying transistor 12. Then, the amplifying transistor 12 amplifies the RF signal to a level that can be received by a vehicle within a predetermined distance, and wirelessly transmits the RF signal to the air through the antenna 11.

When the RF signal is wirelessly transmitted from the remote controller 10, the receiver 20 installed in the vehicle receives the RF signal having a unique ID for each vehicle and amplifies the RF signal to a predetermined level to provide it to the CPU 30. Of course, the remote controller 10 wirelessly transmits an RF signal for opening and closing the door lock only when a remote door is opened or closed according to the driver's (user's) operation without always transmitting the RF signal wirelessly.

Subsequently, the CPU 30 restores the RF signal provided from the receiver 20 into a readable signal and converts the RF signal into a digital state. The CPU 30 checks the reception level of the signal converted into the digital state, and compares it with the reference reception level stored in the EEPROM 70 to confirm whether the remote controller 10 is within a predetermined distance from the vehicle. Here, the reference reception level stored in the EEPROM 70 may be set by the user by learning or may be arbitrarily set based on experiments in the production stage.

As a result, when it is determined that the remote controller 1, that is, the driver (user) exists within a predetermined distance from the vehicle, the relay driver 40 is driven by the control of the CPU 10 while the relay 50a or the relay 50b is driven. The driving power is supplied to the door lock mechanism 60. As a result, the door lock is automatically switched to an open state by driving the door lock mechanism 60.

On the contrary, when it is determined that the reception level of the RF signal received from the remote controller 10 is lower than the reference reception level stored in the EEPROM 70, the CPU 30 determines that the driver is far from the vehicle, and the open / close signal for closing the door lock Is output to the relay driver 40.

Accordingly, while the relay 50b or the relay 50a is driven by the relay driver 40, driving power is input to the door lock mechanism 60 through the relay 50b or the relay 50a, so that the door lock can be operated without any separate operation. It is automatically switched to the open state.

This operation is repeatedly performed as the distance between the remote controller brought by the driver (user) and the vehicle changes, and remote control of the door lock can be selected by operating the remote controller.

Preferably, the functions such as theft alarm, remote start, remote trunk opening, remote siren operation may be added as convenient.

According to the present invention, there is an advantage that the door lock can be automatically locked when the remote control automatically opens the door lock when the remote control approaches the vehicle within a predetermined distance without operating a separate remote control button.

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

Claims (3)

A receiver which receives an RF signal having a unique ID from a portable remote controller and amplifies the RF signal to a predetermined level; A CPU for converting the RF signal from the receiving unit into a digital signal to check a reception level and comparing it with a reference reception level stored in an EEPROM to determine whether the remote controller is within a predetermined distance from the vehicle; A relay driver which receives an opening / closing signal for opening / closing the door lock from the CPU to drive a relay to control the driving power of the door lock mechanism; And A door lock mechanism for opening and closing a door lock for a vehicle by receiving driving power through the relay; Vehicle door lock automatic opening and closing device comprising a. The method of claim 1, The remote control is a vehicle door lock automatic opening and closing device, characterized in that configured to output an RF signal of the strength that the door lock mechanism is driven to open the door lock when the vehicle approaches within a predetermined distance (5m). The method of claim 1, The remote control is for opening and closing the door lock by driving the vehicle door lock mechanism. A vehicle door lock automatic opening and closing device, characterized in that configured to output a RF signal at a predetermined interval (0.8 msec ~ 5 sec).