JPH0826698B2 - Automotive entry device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The function of automatically locking a door when it remains unlocked for a certain period of time can be prohibited by the length of button operation of a transmitter for keyless entry.

[Industrial applications]

The present invention relates to a keyless entry device for an automobile, which can control locking and unlocking of a door without using a door key.

[Conventional technology]

It is inconvenient to operate the lock / unlock with the door key each time in a car where door locking / unlocking is frequently performed like a courier or cash transport vehicle, or theft prevention measures are important. There is also a risk of forgetting to lock the door and leading to theft.

A keyless entry device for automobiles was developed in consideration of this type of situation. Generally, a receiver is installed on the automobile side, and a driver carries a transmitter that can transmit weak radio waves, infrared rays, ultrasonic waves, etc. The lock and unlock can be controlled remotely from the outside. Specifically, (1) a method in which a transmitter is provided with a dedicated button for door lock and unlock, and the driver can press the desired button to control the lock / unlock of the door without using the door key, or ( 2) The transmitter has only one button, and there is a system in which the door is locked and unlocked every time the driver pushes the button.

[Problems to be solved by the invention]

However, the method (1) requires two buttons, which increases the cost and may cause an erroneous operation.
In the method (2), since the state (locked or unlocked) of the door immediately before is reversed, if the state is forgotten or the remote operation is performed from a position that cannot be seen, the operation result remains uneasy. In particular, if left unlocked, there is a risk of theft. This also occurs due to an operation error in the method (1), and in the methods (1) and (2), if the operation itself is forgotten, there is a possibility that it remains in the unlocked state.

The present invention is based on the control that only the unlock instruction can be given from the transmitter, and that the receiver automatically locks the unlocked state when the unlocked state continues for a certain time or longer. Is to solve.

[Means for solving problems]

The present invention provides a single operation button (1
When the specific signal transmitted from the remote control transmitter (1) provided with 3) is received, the predetermined door is unlocked and the door is automatically locked after a predetermined time has elapsed. In a vehicle keyless entry device including means, a prohibition means for prohibiting the operation of the autolock means and holding the predetermined door in an unlocked state, and a duration of a unique signal transmitted from the transmitter. And a selecting means for selecting and operating either the auto-lock means or the prohibiting means according to the duration measured by the measuring means.

[Action]

Originally, the lock / unlock of the door of a car is performed by raising and lowering the locking knob with the fingertip from the inside of the car, and by inserting the door key into the key ring and rotating it from the outside of the car. When a lock mechanism is added, lock / unlock can be controlled by a switch operation. However, this switch operation is performed inside the vehicle, and the one brought out of the vehicle is called a keyless entry device. Therefore, the lock / unlock of the door can be controlled by various methods in the vehicle incorporating the keyless entry device.

This seems convenient at first glance, but if you give top priority to ensuring the door lock, it is convenient to treat the unlock exceptionally. Therefore, the receiver of the present invention has a function of automatically bringing the unlocked state into the locked state even if it does not receive the lock instruction when the unlocked state continues for a certain time (for example, 5 seconds) or more. This does not mean that they will not respond to lock and unlock instructions. It means not to leave the door unlocked for a long time.

The transmitter paired with the receiver having the above-mentioned function does not need the function of issuing the lock instruction. This is useful for unifying the operation button, and since the button only has the function of instructing unlocking, an operation error cannot occur. Considering the actual operation, when the driver unlocks the door from the inside of the car and goes out of the car, it will automatically be locked after a certain time, so there is no need to operate anything regarding the door lock. . When the vehicle enters the vehicle, it is unlocked by simply pressing the button on the transmitter (without checking the type of button), so the operability is good.

As an exception to the basic function described above, the present invention has a function of prohibiting the automatic lock control by pressing the operation button for a predetermined time T or more. The exception to this is that the door will remain unlocked. This is convenient when the door is frequently opened and closed. In such a case, a person is nearby, so there is no fear of theft, and since the operation of pressing the operation button for a long time is not generally performed, it is unlikely that a case where the unlocked state is left due to a mistaken operation.

The door thus unlocked can be locked by a mechanical operation using a door key or a locking knob. Further, if the automatic lock control can be prohibited by continuously pulling the locking knob toward the unlock side for a certain period of time T or more, the door can be left in the unlocked state without the transmitter.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of the present invention, in which 1 is a portable transmitter, 2 is a dedicated code from the transmitter 1,
A receiver having a function of controlling lock / unlock of a door in addition to a function of collating, 3 is an actuator of an electric door lock / unlock mechanism (for example, a door lock solenoid), 4 is a computer for controlling this actuator (Referred to as a door control relay), 5 is a lock / unlock switch (SW is an abbreviation for switch) in the vehicle that manually gives a lock / unlock instruction to the door control relay 4, 6 is a receiving antenna of the code receiver 2, and 7 Is a distributor when this antenna 6 is shared with the radio receiver 8, 9 is a battery,
10 is the main SW, 11 is the courtesy that detects the open / closed state of the door
SW (originally for controlling interior lights), 12 detects the locked / unlocked state of the door from the vertical position of the locking knob
W and 13 are the only operation buttons provided on the transmitter 1, and when this button is pressed, a unique signal (for example, code) is transmitted.

The code receiver 2 incorporates a microcomputer to perform the processing shown in FIG. Since this processing basically has no automatic lock prohibition and release portions within the broken line frame, the basic portion will be described first.

This process starts from waiting for a code from the transmitter 1, and when the received code matches the stored code (“reception present” = Y), an unlock output is issued. At the same time, the timer is started, and the lock output is output when 5 seconds have passed after unlocking. At this time, the open / closed state of the door is judged from the state of the door courtesy SW, and if the door is opened, the door open flag is set and a half door alarm is issued. This is because the door is locked but it is a half-door, and if the door is open, there is no anti-theft effect. When the door is closed in this alarm output state, the alarm is stopped and the lock output is output again. This is because many mechanisms are unlocked when the door is closed and remain unlocked unless locked again. If the door is closed at the time of the first lock output, the door open flag has not been set, so the process returns to the start.

On the other hand, when the code is not received from the transmitter 1 (“reception present” = N), and the unlock is detected by the SW 12, the timer is started from that point. Such a case occurs when the door key or the locking knob is manually operated, or when the lock / unlock SW5 is operated. In this state, if the door open is detected and the door open flag is set (the case where the door is opened after unlocking), or the door close is detected and there is no flag (the door is open even once after unlocking). In the case where it is not released), the lock output is output after 5 seconds have elapsed from the timer start. On the other hand, when the door closing is detected but the door opening flag is also present (the case where the door is once opened and then closed), the lock output is immediately output. It should be noted that a timer may be inserted between this portion and the lock output after the above-described alarm stop, and a certain time (1 second or less is sufficient) may be set. In this way, the order in which the doors are closed and then locked is ensured with a mechanical delay.

In the process of the basic processing described above, when the received signal continues for T seconds (T <5), the reception is stopped and the automatic lock prohibition loop is entered. The automatic lock prohibition is to leave the unlocked state. In this state, the door can be opened and closed freely.

External input is required to release this automatic lock prohibition state. For this, it is convenient to use a lock with a door key or a lock with a locking knob. Further, in order to prohibit the automatic lock without using the transmitter 1, for example, the locking knob may be set to the unlock side for a predetermined time T or more.

〔The invention's effect〕

As described above, according to the present invention, in the automobile keyless entry system, it is possible to reliably prevent forgetting to apply the door lock, and it is possible to simplify the configuration and operation of the transmitter side button. Moreover, since the automatic lock control can be prohibited exceptionally, there is no problem even when the door is frequently opened and closed.

[Brief description of drawings]

 FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a flow chart showing the operation of FIG.

Claims (1)

[Claims] 1. A single operation button (1 that can transmit a unique signal.
When the specific signal transmitted from the transmitter (1) for remote control equipped with 3) is received, the predetermined door is unlocked and the door is automatically locked after a predetermined time has elapsed. In a vehicle keyless entry device equipped with, a prohibition means for prohibiting the operation of the autolock means and holding the predetermined door in an unlocked state, and a duration of a unique signal transmitted from the transmitter. A keyless entry device for an automobile, comprising: a measuring means for measuring; and a selecting means for selecting and operating either the auto-lock means or the prohibiting means in accordance with the duration measured by the measuring means. .