JPH0281749A - Device for avoiding key for automobile from confinement - Google Patents

Abstract

PURPOSE:To avoid almost completely a key for an automobile from a confining accident with saved time and labor by a main control section for operating if necessary an acoustic alarming means and opening a cab window with a power window driving means to close it after the passage of a predetermined time. CONSTITUTION:A main control section 4 judges by a first sensor 1 whether or not an ignition key is inserted into a key switch section and by a second sensor 2 whether or not a cab side door is closed when said key is inserted and said door is opened. Next, when the cab side door is closed, the main control section judges whether or not said door is locked by a third sensor 3. When it is locked, the main control section 4 judges that the key is confined in a compartment, to buzz an alarming buzzer 6 and give a warning to a driver while the cab window is opened by a power window driving means 5. Next, the main control section 4 judges by the sensor 1 that the key is withdrawn from the switch section and stops the buzz of the buzzer 6 when the key is withdrawn to close the cab window with said driving means 5 after the passage of a predetermined time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a key trapping avoidance device for an automobile, and more particularly to a key trapping avoiding device for a car suitable for a passenger car equipped with a power window.

[Conventional technology]

In passenger cars, the same key is used as the ignition key (engine key) and the door lock key, and the door can be locked without using a key, so the door can be locked with the key attached. Accidents often occur.

In order to prevent such key-locking accidents, if a door is opened with the key attached, a warning sound is emitted to alert the driver, or the door cannot be locked with the key attached. Relatively many proposals have been made in the past to try to prevent key lock-in accidents.

It is put into practical use. (For example, Utility Model Publication No. 57-5371
There is one described in Publication No. 0. → [Problem to be solved by the invention] However, with the conventional method of emitting a warning sound to call attention, the warning sound does not sound just by opening the door when the door is not locked. This may cause discomfort to the driver, and if the door cannot be locked with the conventional key attached, the door must be re-locked after the key is removed. However, there was an inconvenience in that it was troublesome and time-consuming.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to improve the inconveniences of the conventional example and, in particular, to provide an automobile key trapping avoidance device that can almost reliably prevent key trapping accidents with as little effort as possible. .

[Means to try to solve the problem]

The present invention includes a key detecting means for detecting an evening key, a door opening/closing detecting means for detecting the open/closed state of the driver's side door, and a door lock detecting means for detecting the locked state of the door.

Each of the detection means is provided with a main control section that determines the presence or absence of an abnormal state based on the detection signal output from each of the detection means, and this main control section is equipped with a power window drive means for the driver's seat window and an audio control section. Equipped with warning means. The main control unit has a control function for activating the audio warning means as necessary, and a control function for operating the power window to open the driver's seat window and closing the driver's seat window after a predetermined period of time has elapsed. The aim is to achieve the above-mentioned objectives.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

The embodiment shown in FIG.
a second sensor 2 as a door opening/closing detection means for detecting the open/closed state of the driver's side door, and a third sensor 3 as a door lock detecting means for detecting the locked state of the driver's side door. We are prepared.

These sensors I, 2.3 are also provided with a main control section 4 that determines the presence or absence of an abnormal state based on the detection signals output from these three sensors. Furthermore, this main control section 4 includes a power window drive means 5 for the driver's seat window.
An alarm buzzer 6 as an audio alarm means is also provided.

The first sensor 1 is actually a motor vehicle 1 shown in FIG.
An ignition key (not shown) is installed in front of the steering wheel 11 of the vehicle.

Further, the second sensor 2 is attached to the main body frame of the driver's side door 12 of the automobile IO, and the third sensor 3 is attached to a door lock part (not shown) inside the driver's side door 12. There is.

Further, the power window driving means 5 is connected to the driver's seat side door-1.
It is built into a power window 15 which is housed in the lower part of the interior of the driver's seat door 12, and opens and closes the window installed in the driver's seat side door 12 in the same way as usual. The alarm buzzer 6 is mounted on the main frame of the driver's seat side door 12 above the driver's seat.

A main control section 4 for controlling the power window driving means 5 and warning buzzer 6 as necessary is installed at the lower part of the instrument panel 13 on the passenger seat side.

Next, the operation of the above embodiment when avoiding key lockup will be explained based on the flowchart of FIG.

First, the main control section 4 determines whether or not the ignition key is inserted into the key switch section using the first sensor 1 (step 5IOI).

If the ignition key is not inserted, there is no need to avoid key entrapment, so the key entrapment avoidance operation ends. On the other hand, if the ignition key is inserted, it is determined whether the flag is 1 or not (5102). If the flag is not 1, that is, if the flag is 0, the second sensor 2 It is determined whether or not it is open (S103). If the door of the driver's seat example is not open, the process returns to step 5lot; on the other hand, if the door of the driver's seat example is open, a flag is set, that is, the flag is set to 1 (S104). After, 510
Return to 1.

If the flag is 1 in step 5102, the second sensor determines whether the driver's side door is still open, that is, whether it is closed (S105).
. If the door of the driver's seat is closed, the third sensor 3 determines whether the door of the driver's seat is locked (S106). If it is not locked, there is no need to avoid key entrapment, so the key entrapment avoidance operation ends.

On the other hand, if the driver's side door is locked, the main control unit 4 determines that the ignition key is locked inside the vehicle and sounds the warning buzzer 6 (3).
107), the driver is alerted to ventilation, and the power window drive means 5 is activated to open the driver's seat window (310).
B).

Next, in the main control unit 4, the first sensor 1 determines whether the ignition key has been removed from the key switch unit (S109). If the ignition key is removed, the alarm buzzer 6 stops sounding (S
ilo). Thereafter, this state is maintained, and after a certain period of time has elapsed, the main control section 4 operates the power window drive means 5 to close the driver's seat window (S112).

As explained above, according to this embodiment, even if the ignition key is accidentally locked inside the vehicle, it becomes possible to easily take out the ignition key, and the warning buzzer 6 sounds to prevent the driver from locking the key. It is possible to avoid the inconvenience of not noticing, and since the driver's seat window opens automatically, there is an advantage that the ignition key can be taken out very easily without opening the door.

〔Effect of the invention〕

As explained above, according to the present invention, the main control section has a control function for activating the audio warning means as necessary, and operates the power window drive means to open the driver's seat window.
Since it has a function to close the driver's seat window after a predetermined period of time has elapsed, even if the ignition key is accidentally locked inside the vehicle, it can be easily retrieved, and the audible alarm system will alert you. The operation avoids the inconvenience of the driver not noticing that the key is locked in, and since the driver's window opens automatically, the ignition key can be taken out very easily without opening the door. As a result, it is possible to almost completely avoid key lock-in accidents without any hassle, and it is an unprecedented and excellent key lock-in method for automobiles that can be easily realized using sensors etc. installed in current passenger cars. Avoidance devices can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention;
FIG. 2 is an explanatory diagram showing the entire automobile equipped with the apparatus according to the embodiment of FIG. 1, and FIG. 3 is a flowchart for explaining the operation of FIG. 1.

Claims (1)

[Claims] (1), comprising a key detection means for detecting an ignition key, a door open/close detection means for detecting an open/closed state of the driver's side door, and a door lock detection means for detecting a locked state of the door, and each of the above-mentioned detection means A main control section is provided for determining the presence or absence of an abnormal state based on the detection signals output from each of the detection means, and the main control section is equipped with a power window driving means for the driver's seat window and an audio warning means. At the same time, the main control section has a control function for activating the audio warning means as necessary, and operates the power window drive means to open the driver's seat window, and after a predetermined time has elapsed, opens the driver's seat window. 1. A key trapping avoidance device for an automobile, characterized in that it has a closing control function.