JP2001010340A - Detecting method for opening/closing of vehicle door and structure therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discriminatingly detect an opened state and a closed state of a door and a half-door state by arranging a light emitting element provided on one side of a vehicle main body and a door for vehicle so as to successively face first and second light receiving elements provided on the other side and pass each other by opening and closing the door. SOLUTION: When a door 10 is closed, a light emitting element 48 provided on the door 10 side faces a first light receiving element 38 provided on a vehicle main body 20 side. Because the light emitting element 48 periodically outputs a signal for detecting opening and closing of the door 10, the signal is received by the first light receiving element 38 when the door 10 is closed and the signal is taken into an opening and closing detection circuit 24, a door closed state is detected. Because the signal is not received by both of the first and second light receiving elements 38, 39 when the door is opened, a door opened state is detected. In a half-door state, the light emitting element 48 becomes a state that the element 48 faces the second light receiving element 39 and the half-door state is detected from an output signal of the second light receiving element 39.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method and a structure for detecting the opening and closing of a vehicle door.

[0002]

2. Description of the Related Art A vehicle door opening / closing detection structure includes:
For example, a momentary type push button switch is provided at the edge of the boarding gate of the vehicle body, and this switch is always pressed off by a closed door, but turns on when the door is opened and warns when it is opened It is known that a light is turned on.

[0003]

By the way, the driver
Since the state in which the door is open can be seen at a glance, even if the warning light is not noticed, the vehicle will not travel in that state. However, at first glance, the half-door state cannot be distinguished from the closed state of the door, and if the warning light is not noticed, the vehicle may travel as it is. However, in the above-described door open / close detection structure, the closed state and the non-closed state of the door are only determined by the on / off of the switch. However, it was not possible to make the warning contents different between the half-door state and the open state.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a method and structure for detecting the open / close state of a vehicle door that can detect the open state, closed state, and half-door state of the door separately. Aim.

[0005]

According to a first aspect of the present invention, there is provided a vehicle door open / close detection method, comprising a light emitting element provided on one side of a vehicle body and a vehicle door for transmitting information as an optical signal. The first light receiving element and the second light receiving element provided on the other side are arranged so as to face each other sequentially by opening and closing the door, and when the door is closed, an optical signal from the light emitting element is received by the first light receiving element. When the light is received by the element and the door is in the half-door state held by the locking means provided between the vehicle body, an optical signal from the light emitting element is received by the second light receiving element, and the door is opened. The feature is that the closed state, the half-door state, and the open state of the door are distinguished based on the fact that the optical signal from the light emitting element is not received by any of the first and second light receiving elements.

According to a second aspect of the present invention, there is provided a vehicle door open / close detection structure, wherein a light emitting element capable of transmitting information as an optical signal is provided on one side of the vehicle body and the vehicle door, and the other side. The first and second light receiving elements are provided side by side along the movement trajectory of the light emitting element accompanying opening and closing of the door, and the light emitting element faces the first light receiving element when the door is closed, and the door is closed. When the door is in the half-door state held by the locking means provided between the vehicle and the vehicle body, the door faces the second light receiving element, and when the door is opened, it does not face any of the first and second light receiving elements. And a discriminating means for discriminating between the closed state, the half-door state, and the open state of the door based on whether one or both of the first and second light receiving elements receive an optical signal. It has features in other places.

According to a third aspect of the present invention, there is provided the vehicle door open / close detection structure according to the second aspect, further comprising a holder attached to the vehicle body or the door, integrally holding the first and second light receiving elements. It has features in other places.

[0008]

According to the first and second aspects of the present invention, when the door is closed, the light-emitting element and the first light-receiving element face each other, and the power window, for example, of the power window is disposed between the vehicle body and the door. It becomes possible to transmit and receive information relating to operations and the like as an optical signal. At this time, the reception of the optical signal by the first light receiving element detects that the door is in the closed state. In the half-door state, the light-emitting element and the second light-receiving element face each other, and the second light-receiving element receives an optical signal, which detects the half-door state. Further, when the door is opened, the light emitting element does not face any of the first and second light receiving elements, and therefore, no optical signal is received by any of the first and second light receiving elements. With this, the open state of the door is detected. In this way,
According to the first and second aspects of the present invention, it is possible to detect the three states of closing and opening of the door and the half-door separately. Thus, for example, the contents of the warning between the open state and the half-door state can be changed, and it is possible to reliably prevent the vehicle from traveling in the half-door state. In addition, since the detection is performed using the optical communication means for transmitting and receiving information between the vehicle body and the door, the space can be saved as compared with the case where the detection means is separately provided.

According to the third aspect of the present invention, the first and the second
Are integrally held by the holder, so that these two light receiving elements can be attached to the vehicle body or the door at one time.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the automobile of this embodiment is provided with four doors 10, and each door 10 has a motor 11 for raising and lowering a window glass and each door 10 as shown in FIG. And a motor 13 for locking and unlocking the rearview mirror, and a motor 13 for changing the attitude of the front door 10 between a state in which the rearview mirror is folded toward the door 10 and an expanded state. Provided.

The door 1 is located between the edge of the door 10 on the rotating shaft side and the edge of the boarding opening 20A of the vehicle body 20.
A harness 14 (shown only in FIG. 1) formed by bundling the power lines of the motor No. 0 is inserted. This harness 14
Is connected to a power supply circuit 22 via a drive circuit 21 on the vehicle body 20 side. The vehicle-side operation unit 23 provided in the vehicle body 20 or the driver-side door 1
By operating any one of the door-side operation units 15 provided for the motor 0, the drive circuit 21 is operated, and each motor is operated or stopped.

Information on the operation of the door side operation unit 15 is given to the drive circuit 21 through a signal line 16 provided on the door 10 and a signal line 26 provided on the vehicle body 20. An optical communication connector 30 capable of transmitting and receiving information as an optical signal is provided at a terminal of each of the signal lines 16 and 26.

The above-mentioned optical communication connector 30 comprises a vehicle-side connector 31 and a door-side connector 41. The vehicle-side connector 31 has a cross-sectional shape shown in FIG. 3 and includes a back wall 32A inside a synthetic resin holder 32 having a flat cylindrical shape as a whole, and a first light receiving element 38 is provided on the back wall 33A. The second light receiving element 39 is provided side by side.

On the other hand, the door-side connector 41 has a back wall 42A inside a holder 42 also having a flat cylindrical shape as a whole, and a light emitting element 48 is provided in a position near one end of the back wall 42A.

As shown in FIG. 2, the vehicle-side connector 31 is a striker 2 for locking the door 10 and the vehicle body 20 at the edge of the boarding opening 20A of the vehicle body 20.
0B, and as shown in FIG.
The flange 37, which is inserted from the rear end into the hole 20C formed at 0 and provided on the outer surface, abuts against the edge of the hole 20C (see FIG. 3) and is fixed with, for example, a bolt. On the other hand, the door-side connector 41 is disposed at a position facing the vehicle-side connector 31 when the door 10 is closed in the edge portion of the door 10, and is fixed in the same manner as the vehicle-side connector 31. The first and second connectors 31 and 41 move along the locus of movement of the light emitting element 48 accompanying opening and closing of the door 10.
The light receiving elements 38 and 39 are arranged side by side, and are set in detail as follows.

That is, when the door 10 is in the closed state, the light emitting element 48 on the door 10 faces the first light receiving element 38 on the vehicle body 20, as shown in FIG. Door 1
When the door 0 is in a half-door state shifted from the closed state and lightly engaged with the striker 20B, as shown in FIG.
The light emitting element 48 on the 0 side is the second light receiving element 3 on the vehicle body 20 side.
Facing 9 Further, when the door 10 is opened, as shown in FIGS.
Are directed in alternate directions, and the light emitting element 48 is set so as not to face any of the light receiving elements 38 and 39.

The vehicle body 20 is provided with an open / close detection circuit 24 as shown in FIG. The open / close detection circuit 24 is connected to a signal line connected to the first and second light receiving elements 38 and 39 of the vehicle-side connector 31, and the first and second
Based on which of the light receiving elements 38 and 39 is receiving the optical signal, and furthermore, neither of them is receiving the optical signal, the three states of the closed state of the door 10, the half door and the open state are determined. Then, based on the above determination result, the warning lamp 24A is turned on, or a warning sound is generated from the speaker 24B, as described below.

Next, the operation of this embodiment having the above configuration will be described. When the door 10 is in a closed state, as shown in FIG.
It faces the first light receiving element 38 provided on the 0 side. In this state, when the door-side operation unit 15 (see FIGS. 1 and 2) provided on the door 10 is operated, this operation information is transmitted to the light emitting element 4.
8 and transmitted as an optical signal. Here, the optical signal is a signal for so-called multiplex communication, and when a plurality of switches of the door-side operation unit 15 are simultaneously operated, the plurality of switches are operated in the same manner as when one switch is operated. Is transmitted at the same time.

The transmitted optical signal is received by the first light receiving element 38 on the vehicle body 20 side, and is taken into the drive circuit 21. Then, based on the plurality of operation information included in the received signal, for example, the motors of the plurality of doors 10 are simultaneously driven to move each window glass up and down at the same time, or only one window glass is moved. Or

The light emitting element 48 on the door 10 side is
For example, a signal for door opening / closing detection is periodically output. When the door 10 is closed, the signal for detecting the opening and closing of the door is:
The light is received by the first light receiving element 38 on the vehicle body 20 side and is taken into the open / close detection circuit 24. The open / close detection circuit 24 detects the first light receiving element 3 of the two light receiving elements 38 and 39.
8 has taken in the signal for door open / close detection,
It detects that the door 10 is in the closed state.

When the driver gets in and out of the automobile, the door 10 on the driver's seat side is opened until it is not locked by the striker 20B provided on the vehicle body 20, as shown in FIG. Then, the vehicle-side connector 31 is in a state in which the vehicle-side connector 31 is completely turned in the alternate direction.
Accordingly, in this state, the optical signal for door open / close detection transmitted from the light emitting element 48 on the door 10 side is not received by any of the first and second light receiving elements 38 and 39 on the vehicle body 20 side. Then, the opening / closing detection circuit 24 detects that the door 10 is in an open state by not receiving the signal for door opening / closing detection that should be received periodically, and turns on the warning light 24A, for example.

Although the door 10 is operated so as to be closed, the door 10 may be slightly lifted from the closed position to the boarding gate 20A and may be in a half-door state in which the door 10 is slightly engaged with the striker 20B. Then, as shown in FIG. 4, the light emitting element 48 on the door 10 faces the second light receiving element 39 on the vehicle body 20 side, and receives the optical signal for door open / close detection transmitted from the door 10 side. Then, the open / close detection circuit 24
When the second light receiving element 39 of the two light receiving elements 38 and 39 receives the optical signal for door opening / closing detection, it detects that the door is in the half-door state. Then, a warning sound is emitted from the speaker 24B to alert the driver.

As described above, according to the door open / close detection structure of the present embodiment, the closed state and the open state of the door 10 and the state of the half door can be distinguished and detected. It is possible to change the content of the warning with the state, and thereby it is possible to reliably prevent the vehicle from traveling in the half-door state. Moreover, an optical communication element (light receiving element 3) for transmitting and receiving information between the vehicle body 20 and the door 10.
8, 39 and the light emitting element 48), so that space saving and cost reduction can be achieved as compared with the case where the detecting means is separately provided. Furthermore, since the first and second light receiving elements 38 and 39 are integrally held by the holder 32, the work of attaching these two light receiving elements 38 and 39 to the vehicle body 20 can be performed at one time.

<Other Embodiments> The present invention is not limited to the above embodiments. For example, the following embodiments are also included in the technical scope of the present invention.
In addition to the following, various changes can be made without departing from the scope of the invention.

(1) In the above-described embodiment, an example in which an optical communication element is provided between the driver's seat side door 10 and the vehicle body 20 has been described. Open / close detection of a door provided with an optical communication element in between may be performed.

(2) In the above embodiment, the warning in the half-door state is performed by a warning sound. For example, a warning light different from the open state is turned on without generating a warning sound. You may.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an electric configuration of an automobile according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a door on a driver's seat side is opened.

FIG. 3 is a partial sectional view showing a state where a door on a driver's seat side is closed.

FIG. 4 is a partial sectional view of a half-door state.

FIG. 5 is a partial sectional view showing a state where a door is opened.

[Explanation of symbols]

 Reference Signs List 10 door 20 vehicle body 20B striker (locking means) 24 opening / closing detection circuit (determining means) 32 holder 38 first light receiving element 39 second light receiving element 48 light emitting element

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Heiji Kuki 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in Harness Research Institute, Inc. (reference) 2E052 AA09 BA02 CA06 EA03 EA14 EB01 EC01 EC03 GA06 GB12 GB13 GD00 KA13 KA27 LA02 5G055 AA03 AB01 AC01 AD01 AD04 AD08 AD12 AE32 AG24

Claims (3)

[Claims] A light emitting element provided on one side of a vehicle body and a vehicle door for transmitting information as an optical signal is provided on a first light receiving element and a second light receiving element provided on the other side. When the door is closed, the light signal from the light emitting element is received by the first light receiving element, and the door is located between the door and the vehicle body. The light signal from the light emitting element is received by the second light receiving element when the half door state is held by the provided locking means, and when the door is opened, the light signal from the light emitting element is Detecting whether the door is in the closed state, the half-door state, and the open state based on the fact that the light is not received by any of the first and second light receiving elements. . 2. A light emitting element capable of transmitting information as an optical signal is provided on one side of a vehicle body and a door for a vehicle, and the other side is moved by the opening and closing of the door. First and second light receiving elements are provided side by side along a trajectory, and the light emitting element faces the first light receiving element when the door is in a closed state, and the door is provided between the vehicle body and the first light receiving element. When the door is in the half-door state held by the locking means, it faces the second light receiving element, and when the door is in the open state, it is arranged so as not to face any of the first and second light receiving elements. Determining means for distinguishing between the closed state, the half-door state, and the open state of the door based on whether or not one or both of the first and second light receiving elements receive the optical signal; Vehicle door characterized by comprising: Opening and closing detection structure. 3. A vehicle door opening / closing detection device according to claim 2, further comprising a holder attached to said vehicle body or said door, integrally holding said first and second light receiving elements. Construction.