KR19980079203A - Anti-theft device and method of automatic transmission vehicle - Google Patents

Abstract

Anti-theft device and method of the disclosed vehicle is to prevent theft of the vehicle and audio by controlling the operation of the automatic transmission as the driver inputs a password to the car audio.

The anti-theft device and method according to the present invention, when the user sets and inputs a password through an encryption key, and compares the password entered by the driver and the set password, if the input password and the set password match the operation of the driver; The automatic transmission is controlled accordingly. If the password entered by the driver is different from the set password, an alarm sounds.

Therefore, the present invention prevents the automatic shift when the password inputted through the car audio is different from the set password, thereby preventing theft of the vehicle and audio, as well as controlling the operation of the automatic transmission, such as automatic door opening and closing, and remote starting. It provides the effect that can be used together with the remote control.

Description

Anti-theft device and method of automatic transmission vehicle

The present invention relates to a device and a method for preventing theft of a vehicle equipped with an automatic transmission, and more particularly, to prevent theft of the vehicle and audio by controlling the operation of the low speed transmission according to a driver inputting a password to the car audio. The present invention relates to an anti-theft device and method for an automatic transmission vehicle.

Recently, various devices have been used to prevent theft of vehicles and car audio, which are frequently generated.

That is, when the anti-theft device is used, the driver does not input the set confirmation code or the error code is input through the keypad installed in the vehicle.

In addition, when using a remote control device that performs the remote start function and the remote door opening and closing function in addition to the above-described method, to sound an alarm when artificially opening the door without applying the remote control or when a small shock is applied from the outside. There is a way to prevent theft.

1 is a block diagram showing the anti-theft of a vehicle using a conventional anti-theft device as described above.

As shown, a conventional anti-theft device is inserted into a car key (not shown) and rotated so as to operate the engine 15 by the power of the battery 10 and the keypad and the keypad ( The anti-theft control unit 13 and the anti-theft control unit outputting a control signal to the engine control unit 14 according to whether or not the input password matches the set password by comparing the password entered by the driver with the set password through 12) It consists of the engine control part 14 which controls the drive of the engine 15 by the control signal output from (13).

The vehicle equipped with the conventional antitheft device configured as described above is controlled by the engine control unit 14 unless the driver inputs a password that matches the password set through the keypad 12 installed in the vehicle before the driver starts the vehicle. By preventing the engine 15 from being driven, theft of the vehicle is prevented.

In addition, Figure 2 is a block diagram showing the anti-theft of a vehicle using a conventional remote control device.

As shown, the conventional remote control device is a car key switch unit 21 for operating the engine 26 by the power of the battery 20 by inserting the car key (not shown) and then rotated, Remote control control unit 23 for controlling door 24 and engine control unit 25 by the command of automatic opening or closing of the door input by the driver through controller 22 and output from remote control control unit 23. In addition to the engine control unit 25 for controlling the driving of the engine 26 by the control signal and the remote controller 22 included in the driver, an alarm that outputs an alarm sound when the door 24 is artificially opened or a minute shock is received. The sound generator 27 is comprised.

The vehicle equipped with the conventional remote control device configured as described above is operated by a driver pressing a command key to open or close the door of the vehicle or start the vehicle through the remote controller 22.

However, if the door 24 is artificially opened or closed without using the remote controller 22 or if a force is applied to the vehicle body from the outside, the alarm sound generator 27 outputs a loud alarm sound to prevent theft of the vehicle.

On the other hand, in addition to the above-described method, recently to set the password in the car audio itself in order to prevent the theft of the car audio, if you want to remove the car audio and connect again to use the set password again to operate the car audio There are also ways to reduce the risk of theft.

However, there is a problem in that a high cost is required to install the antitheft device and remote control device as described above used to prevent theft of the vehicle in the vehicle.

In addition, when the anti-theft protector is installed and used, the user must enter a password through a keypad installed in the vehicle. Therefore, in order to use the remote control device with the remote control device, the keypad must be installed on the remote control device. Even if a keypad was installed, confidentiality was difficult due to eavesdropping on password transmission.

In addition, even when using a remote control device there is a problem that does not perform an effective anti-theft, such as output only the alarm sound to stop the engine to stop the engine.

Accordingly, an object of the present invention is to set a password through car audio without installing an anti-theft protector or a remote control device to prevent theft of the vehicle and audio, and by controlling the operation of the automatic transmission according to the password input during driving An anti-theft device and method for an automatic transmission vehicle for preventing theft of a vehicle and audio are provided.

Another object of the present invention is to control the operation of the automatic transmission, not to control the operation of the engine, the anti-theft device of the automatic transmission vehicle to be used with a remote control device for performing functions such as automatic door opening and closing, remote start, etc. And a method.

1 is a block diagram showing the anti-theft of a vehicle using a conventional anti-theft device,

Figure 2 is a block diagram showing the anti-theft of the vehicle using a conventional remote control device,

Figure 3 is a block diagram showing an example of the anti-theft device of the present invention,

4 is a block diagram showing another example of the present invention;

5A to 5C are flowcharts illustrating a flow of an encryption input using car audio according to the present invention.

Explanation of symbols on the main parts of the drawings

100: battery 110: car key switch unit

120: car audio 130: automatic shift control

140: automatic transmission 150: alarm sound generating unit

160: engine control unit 170: engine

200: remote control control unit 210: remote control unit

In order to achieve the above object, the present invention compares a car audio in which a user sets and inputs a password through an encryption key, and a driver in which the driver inputs the car audio to a password and controls the automatic transmission according to the comparison value. And a shifting control unit, an automatic transmission driven by the control of the automatic shifting control unit, and an alarm sound generating unit for generating an alarm sound when the password inputted by the driver through the car audio is different from the set password.

In addition, the present invention determines whether the driver to set a password, pressing the encryption key provided in the car audio, pressing the encryption key once to enter the password and pressing the encryption key twice to change the password It is another feature to include.

Hereinafter, with reference to the accompanying drawings will be described in detail the anti-theft device and method of the automatic transmission vehicle of the present invention.

Figure 3 is a block diagram showing an example of the anti-theft device of the present invention.

As shown, the anti-theft device of the present invention is inserted into a car key (not shown) and rotates to operate the car key switch unit 110 to operate the engine 170 by the power of the battery 100, An encryption key (not shown) is provided so that the user inputs and sets a password using the encryption key, and compares the password entered by the driver with the car audio 120 and the set password. Is an automatic transmission control unit 130 for controlling the automatic transmission 140 according to whether or not the set password, the automatic transmission 140 is driven under the control of the automatic transmission control unit 130, car audio 120 It consists of an alarm sound generating unit 150 for generating an alarm sound when the password entered by the driver and the set password is different.

Reference numeral 160 in the reference numerals of FIG. 3 is an engine control unit.

Figure 4 is a block diagram showing another example of the anti-theft device of the present invention, the engine 170 and the door (shown in accordance with the remote control signal input by the user through the remote controller 210 in the configuration of FIG. Not included) is a configuration that includes a remote control control unit 200 for controlling the operation.

Next, an anti-theft device and method for an automatic transmission vehicle according to the present invention configured as described above will be described in detail with reference to FIG. 5.

5A to 5C are flowcharts illustrating a flow of an encryption input using car audio according to the present invention.

First, the driver determines whether to set a password (S1), and if the password is not set, the vehicle is driven according to the driver's driving operation (S2).

When setting a password, press the encryption key formed at a certain position of the car audio to enter the password (S3).

The number of times the encryption key is pressed is counted (S4), and it is determined whether the number of times the encryption key has been pressed once or twice (S5).

Herein, when the encryption key is pressed once, the step of inputting the password is performed. When the encryption key is pressed twice, the step of changing the password is performed.

Therefore, when the encryption key is pressed once, the password is entered. Therefore, if the password is initialized to 0 at first (S6) and the password is input (S7), the password is compared with the set password (S8).

In operation S9, the automatic transmission is controlled according to the driver's driving operation.

However, if the input password and the set password is not the same, the number of times the password input is increased by one (S11).

Next, it is determined whether the password input frequency is larger or smaller than the input frequency set in the car audio (S12). When the password input frequency is smaller than the input frequency set in the car audio, the process returns to the above-described password input step (S7) and re-enters the password. Allow input.

However, if the password input frequency is larger than the input frequency set for the car audio, the automatic shift control is stopped (S13) and an alarm sound is generated (S14).

On the other hand, if the encryption key is pressed twice in the step (S5) of determining the number of times of the encryption key described above, the password is changed, so the input frequency is initially initialized to 0 (S15) and then the password is input (S16). ) Is compared with the set password (S17).

If it is determined that the input password and the set password are the same (S18), and if the same password is displayed on the display unit (not shown) of the car audio (S19), and enters the change password according to the driver's operation (S20) The password is changed (S21).

However, if the input password and the set password is not the same, the number of times the password input is increased by one (S22).

Next, it is determined whether the password input frequency is larger or smaller than the input frequency set in the car audio (S23). When the password input frequency is smaller than the input frequency set in the car audio, the process returns to the above-described password input step (S16) and resets the password again. Allow input.

However, if the password input frequency is greater than the input frequency set for the car audio, the automatic shift control is stopped (S24) and an alarm sound is generated (S25).

Here, the present invention has been described as controlling the drive of the automatic transmission by setting a password through the car audio, but is not limited to this, and any device other than the car audio to control the drive of the automatic transmission is the present invention. Of course it belongs to the category of.

As described above, according to the anti-theft device and method of the automatic transmission vehicle according to the present invention, if a password is set through car audio and a password is input during operation, the automatic transmission control device checks it and controls the operation of the automatic transmission. If the password entered through the car audio is different from the set password, the automatic transmission is prevented, thereby preventing theft of the vehicle and the audio.

In addition, there is an advantage of using a remote control device that performs the function of automatic door opening and closing, remote start by controlling the operation of the automatic transmission.

Claims (5)

A car audio provided with an encryption key for setting and inputting a password through the encryption key; An automatic transmission control unit for comparing the password inputted to the car audio with the set password and controlling the automatic transmission according to whether the input password matches the set password or not; An automatic transmission operated under the control of the automatic transmission control unit; And Anti-theft device for an automatic transmission vehicle characterized in that it comprises an alarm sound generating unit for generating an alarm sound if the password entered by the driver is different from the set password. The method of claim 1, wherein the anti-theft device; The anti-theft device of an automatic transmission vehicle, characterized in that the configuration further comprises a remote control control unit for controlling the operation of the engine and the door according to the remote control signal input by the user. Determining whether the driver sets a password, and pressing an encryption key provided in the car audio; Pressing the encryption key once to enter a password; And The anti-theft method of an automatic transmission vehicle comprising the step of changing the password by pressing the encryption key twice. The method of claim 3, wherein the step of entering a password; Determining whether the input password and the set password are the same by comparing a set password after inputting a password; Controlling the automatic transmission according to a driving operation of a driver when the input password and the set password are the same; Determining whether the password input frequency is greater than the input frequency set for the car audio when the input password and the set password are not the same; If the password input frequency is smaller than the input frequency set for the car audio, returning to the password input step and re-entering the password; And And stopping the automatic transmission control and generating an alarm sound when the password input frequency is greater than the input frequency set in the car audio. 4. The method of claim 3, wherein changing the password comprises: Determining whether the input password and the set password are the same by comparing a set password after inputting a password; Changing a password by inputting a change password when the input password and the set password are the same; Determining whether the password input frequency is greater than the input frequency set for the car audio when the input password and the set password are not the same; If the password input frequency is smaller than the input frequency set for the car audio, returning to the password input step and re-entering the password; And And stopping the automatic transmission control and generating an alarm sound when the password input frequency is greater than the input frequency set in the car audio.