JP2613817B2 - Vehicle anti-theft device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle anti-theft device which can be set / reset by remote control, and more particularly to a vehicle anti-theft device for notifying the completion of the set / reset using a horn and a lamp.

[0002]

2. Description of the Related Art If a door or the like of a parked vehicle is unlocked without using a key, the vehicle body or vehicle equipment may be stolen. Anti-theft devices for vehicles have been put into practical use that take protective measures such as giving a burglar alarm by flashing a headlight or cutting off a power supply system so that an engine cannot be started.

[0003] This type of anti-theft device is set when the door, trunk and hood are all closed and the door is locked during parking. In general, door locks include a key lock using a key and a keyless lock without using a key. Recently, remote control methods are increasing. This is a combination of a remote control device and a lock control mechanism for inverting lock / unlock every time a transmission button is pressed by a remote control transmitter.

Since the remote control function often operates the transmitter at a position distant from the vehicle, the horn and the lamp may notify whether or not the anti-theft function has been set / reset as desired. .

[0005]

The above-described vehicle antitheft device having a remote control function includes a door, a trunk,
Cannot set if part of the hood is open. In this case, the user needs to close the open part again and then operate the button of the transmitter again.

[0006] However, if the user has a door, a trunk,
It takes time to find out which part of the hood is not closed, and it is difficult to find a part that is slightly open in an unlocked state, such as a hood.

In addition, even if an operation of closing each part by pushing by hand is performed, it is determined whether or not the part is in a closed state in which the part can be set.
This is inconvenient since the information is not known unless the transmission button is operated again thereafter.

According to the present invention, the open portion can be distinguished into a door and a trunk / hood, and when the open portion is closed, the set portion can be set without operating the transmission button again. Is intended to be immediately discriminated from the operation of the horn and the lamp.

[0009]

SUMMARY OF THE INVENTION The present invention provides a vehicle door,
Means for individually detecting the opening and closing of the trunk and hood, means for remotely controlling the locking / unlocking of the door, and prevention of theft when the door, trunk and hood are all closed during the remote lock control. Means for setting functions and driving the horn and lamp of the vehicle in the first mode; resetting the anti-theft function during the remote unlock control; and driving the horn and lamp in the second mode. Means for driving the horn and lamp in a third manner when the door is closed but the trunk or hood is open during the remote lock control; and When the trunk and the hood are all closed after being driven in the manner described above, the anti-theft function is set, Said the serial horn and lamp first
Means for driving in the above-mentioned mode.

[0010]

The anti-theft device for a vehicle according to the present invention is set if all doors, trunks and hoods are closed during remote lock control, but is not set if any part of the door is open. In the present invention, this difference is distinguished by the driving mode of the horn and the lamp. In particular, it is possible to easily determine whether the cause of the defective setting is opening the door / trunk / hood.

[0011] Further, the setting failure due to the opening of the trunk / hood is automatically corrected when the trunk / hood is closed,
And this can be immediately discriminated from the driving mode of the horn and the lamp. Therefore, the transmission button can be set without operating the transmission button again.

[0012]

FIG. 1 is a block diagram showing an example of a vehicle anti-theft device according to the present invention. Reference numeral 1 denotes a microcomputer having a theft prevention function, a door lock / unlock control function, a remote control function, and the like. Abbreviated).

The microcomputer 1 operates on a backup power supply + B directly connected to a battery 2 and has an accessory power supply ACC.
Switch signals indicating ON / OFF of the door, a door courtesy switch 4 indicating opening / closing of the door, a trunk courtesy switch 5 indicating opening / closing of the trunk, and a hood courtesy switch 6 indicating opening / closing of the hood are input. .

The remote control device is configured to receive a radio wave with an identification code transmitted when the transmission button 8 of the transmitter 7 is pressed by the receiving circuit 9 and to input a detection signal to the microcomputer 1.

The door lock / unlock control device is configured to drive the door control relay 10 to the lock side or the unlock side by the output L / U of the microcomputer 1.

The anti-theft device is configured so that the microcomputer 10 monitors the input state and turns on the horn relay 11 and the parking lamp relay 12 when the vehicle theft is detected. Reference numeral 13 denotes a horn driven by the relay 11, and 14 denotes a parking lamp driven by the relay 12.

The anti-theft device described above uses the horn 13 and the lamp 14 even when the transmission button 8 is operated. FIG. 2 is a flowchart of the microcomputer 1 that performs this processing.

The first step S1 in FIG. 2 is an initialization process for initializing each unit, in which the anti-theft mode identification flag is set to 1. This flag is reset by 0,
1 indicates a set and 2 indicates a set failure mode. However,
This set failure is caused by the opening of the trunk / hood, and that caused by the opening of the door is treated as a part of reset (= 0) (N in step S5 described later).

At the next step S2, it is determined whether the flag = 2, and when N (No), that is, when the flag = 0, 1, a radio wave from the transmitter 7 is waited for at step S3. If a radio wave is received here, it is determined in step S4 whether the flag = 0, and Y (yes)
That is, when the flag is 0 (reset), it is determined in step S5 whether the door courtesy is closed. Here the door courtesy closed,
That is, if it is determined that all doors are closed, a lock output is issued in step S6, and all doors are locked.

Next, at step S7, it is determined whether the trunk and the hood are closed, and if both are closed, steps S8 to S11 are executed. In step S8, the horn is blown once, and in the following step S9, the parking lamp is turned on once. Then, the anti-theft function is set in step S10, the flag is set to 1 (set) in step S11, and the process returns to step S2. By the flow of the above steps S2 to S11, the door lock and the anti-theft set can be automatically performed only by the remote control.

On the other hand, if it is determined in step S7 that either the trunk or the hood is open, steps S12 to S12 are executed.
Execute S14. In step S12, the horn is blown three times, and in the following step S13, the parking lamp is turned on three times. Then, in step S14, the flag is set to 2 (set failure), and the process returns to step S2. This flow is when the door lock is automatically performed, but the anti-theft set is omitted.

In this case, since the flag is determined to be 2 in step S2, it is waited in step S15 that both the trunk and the hood are closed. This corresponds to steps S12 and S1.
This is because the user who has received the notification of step 3 manually closes the trunk and the hood. If the result is that both of them are closed, the process proceeds to step S8, so that the horn blows in step S8 and the next step S9. You can tell that the door, trunk, and hood are all completely closed from the parking lamp lighting. In addition, since the anti-theft function is automatically set in step S10, the user does not need to press the transmission button again.

On the other hand, when it is determined in step S5 that the door courtesy is open, a part of the door is open. At this time, the process returns to step S2 to wait for the door to be closed. Therefore,
Since the horn and the lamp do not operate at all even if the user operates the transmission button, this can be determined.

When the flag is set to 1 (set) in step S11, N is determined in step S4 when a radio wave is received next time. In this case, an unlock output is issued in step S16, and all doors are unlocked. At the same time, the horn is blown twice in step S17, and the parking lamp is turned on twice in step S18.
Further, the anti-theft function is reset in step S19, the flag is set to 0 (reset) in the next step S20, and the process returns to step S2.

[0025]

As described above, according to the present invention, in a vehicle anti-theft device which can be set / reset by remote control, the difference between the setting failure due to the opening of the door and the setting failure due to the opening of the trunk / hood is determined by the horn and the lamp. There is an advantage that when the trunk / hood is closed, the set state is automatically set without operating the transmission button again, and this is notified by the horn and the lamp.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating an example of a vehicle anti-theft device according to the present invention.

FIG. 2 is a flowchart showing the operation of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microcomputer 4 Door courtesy switch 5 Trunk courtesy switch 6 Food courtesy switch 7 Transmitter 8 Send button 13 Horn 14 Lamp

Claims (1)

(57) [Claims] 1. A means for individually detecting opening and closing of a door, a trunk, and a hood of a vehicle, a means for remotely controlling lock / unlock of the door, and the door, the trunk, and the hood when the remote lock control is performed. When all are in the closed state, the anti-theft function is set, the means for driving the horn and the lamp of the vehicle in the first mode, and the anti-theft function is reset at the time of the unlock control of the remote. Means for driving the lamp in the second mode; and means for driving the horn and the lamp in the third mode when the door is closed but the trunk or hood is open during the remote lock control. When the trunk and the hood are all closed after the horn and the lamp are driven in the third mode, the theft prevention Means for setting functions and driving the horn and the lamp in the first mode.