WO2018096808A1

WO2018096808A1 - Vehicle door opening/closing device

Info

Publication number: WO2018096808A1
Application number: PCT/JP2017/036526
Authority: WO
Inventors: 哲夫徳留
Original assignee: 株式会社ユーシン
Priority date: 2016-11-25
Filing date: 2017-10-06
Publication date: 2018-05-31
Also published as: JPWO2018096808A1; JP6980690B2

Abstract

This vehicle door opening/closing device comprises: a driving means 20 for driving the opening/closing of a door 25 of a vehicle 1; a detection means 8 for detecting objects to be detected which are positioned within a detection range outside the vehicle; and a control means 21 which opens and closes the door 25 by controlling the driving of the driving means 20 on the basis of the detection results of the detection means 8. The detection means 8 is positioned behind a reflector 5 which reflects light from a light source 6 provided to the interior of an illuminating means positioned at the rear of a vehicle.

Description

Vehicle door opening and closing device

The present invention relates to a vehicle door opening / closing device.

Conventionally, as a vehicle door opening and closing device, when an obstacle is detected with a detection pattern that satisfies a plurality of predetermined conditions, a rear seat door opening / closing drive unit is known to open the rear seat door. Yes (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2014-221982

However, in the conventional vehicle door opening and closing device, since a sensor for detecting an obstacle is mounted on the bumper, it is necessary to make a hole in the bumper. Moreover, when attaching as another parts other than a bumper, an attachment position is restrict | limited and a process becomes complicated.

Therefore, an object of the present invention is to provide a vehicle door opening / closing device that can eliminate the need for complicated processing by incorporating detection means into illumination means arranged at the rear of the vehicle.

As a means for solving the above problems, the present invention provides:
Driving means for opening and closing the door of the vehicle;
Detecting means for detecting an object located in a detection range outside the vehicle;
Control means for opening and closing the door by controlling the drive means based on the detection result of the detection means;
With
The detecting means is provided behind a reflector that reflects and diffuses light from a light source provided in an illuminating means arranged at the rear of the vehicle.

With this configuration, it is possible to eliminate processing of a bumper or the like by incorporating the detection means into the illumination means arranged at the rear of the vehicle.

According to the present invention, since the detection means is incorporated in the illumination means arranged at the rear of the vehicle, no complicated processing is required, and the user can simply configure the detection means inside the illumination means. Motion can be detected.

The rear view of the vehicle which shows the tail lamp by which the detection means which concerns on this embodiment is employ | adopted. The front view of the tail lamp of FIG. FIG. 2B is a sectional view taken along line AA in FIG. 2A. The block diagram which shows the structure of a door opening / closing apparatus. The flowchart which shows the vehicle door opening / closing process which concerns on this embodiment. The flowchart which shows the infrared trigger process of FIG. The flowchart which shows the electrostatic trigger process of FIG. The front view of the tail lamp which concerns on 2nd Embodiment. FIG. 7B is a sectional view taken along line BB in FIG. 7A. The front view of the tail lamp which concerns on 3rd Embodiment. FIG. 8C is a cross-sectional view taken along line CC of FIG. 8A. The front view of the tail lamp which concerns on 4th Embodiment. FIG. 9B is a sectional view taken along line DD of FIG. 9A. The front view of the tail lamp which concerns on 5th Embodiment. FIG. 10B is a sectional view taken along line EE in FIG. 10A. The front view of the tail lamp which concerns on 6th Embodiment. FF sectional view of FIG. 11A

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. In the following description, terms indicating specific directions and positions (for example, terms including “up”, “down”, “side”, “end”) are used as necessary. Is for facilitating understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms. Further, the following description is merely illustrative in nature and is not intended to limit the present invention, its application, or its use. Furthermore, the drawings are schematic, and the ratio of each dimension is different from the actual one.

FIG. 1 is a rear view of a vehicle 1 that employs a vehicle door opening and closing device 2 according to the present embodiment. The vehicle door opening and closing device 2 is provided with tail lamps 3 as illumination means on both sides at the rear of the vehicle.

(First embodiment)
2A and 2B show the tail lamp 3 according to the first embodiment. The tail lamp 3 includes, in a case 4, a reflector 5, an LED 6 (light emitting diode) as a light source, a first substrate 7 on which the LED 6 is mounted, an optical sensor 8 and a capacitance sensor 9 as detection means. The second board 10 to be mounted is accommodated.

Case 4 is composed of a case body 11 and a lens 12. The case main body 11 is composed of a rectangular portion and a semicircular portion when viewed from the front. Further, the case body 11 has a vertical cross section composed of upper and lower arc portions and an intermediate straight portion. The lens 12 has a flat plate shape and is made of a resin material having translucency.

The reflector 5 is formed by molding a synthetic resin material into a recessed shape, and a first opening 13 is formed in an upper portion on the center line, and the first opening 13 is recessed in a spherical shape. The reflector 5 has a flat portion on the lower side, and a rectangular second opening 14 is formed at the center thereof. Further, the surface of the recessed portion of the reflector 5 is coated with a base, and after a thin film is formed on the surface by sputtering, coating is applied so that the surface becomes a mirror surface.

The first substrate 7 on which the LED 6 is mounted is disposed on the upper rear surface of the reflector 5 and is fixed to the case body 11. The LED 6 is exposed from the first opening 13 of the reflector 5 and can emit light to the outside of the vehicle via the lens 12.

The second substrate 10 is disposed on the lower back surface of the reflector 5 and is fixed to the case body 11. The optical sensor 8 and the electrostatic capacitance sensor 9 mounted on the second substrate 10 are disposed in the second opening 14, and the infrared rays emitted from the optical sensor 8 pass through the lens 12 and are emitted to the detection range outside the vehicle. It is like that.

The optical sensor 8 includes a light emitting element 15 (infrared LED) and a light receiving element 16 (photodiode). Infrared rays output from the light emitting element 15 are reflected by a detection object within the detection range and received by the light receiving element 16. Here, the detection range is set to a range (first trigger area) in which the distance from the light emitting element 15 and the light receiving element 16 is 5 cm to 30 cm.

The electrostatic capacitance sensor 9 includes a transmission electrode 17 disposed on the outer diameter side around the light emitting element 15 and a reception electrode 18 disposed on the inner diameter side. When the electric lines of force extending from the transmission electrode 17 to the reception electrode 18 are blocked by hand or the like, the charging current to the reception electrode 18 decreases and the detection voltage decreases. A detection circuit (not shown) formed on the second substrate 10 is connected to the transmission electrode 17 and the reception electrode 18. The transmission electrode 17, the reception electrode 18, and the detection circuit constitute detection means. In the detection circuit, an object to be detected is detected based on a change in the lines of electric force between the transmission electrode 17 and the reception electrode 18. Here, the detection range is set to a range where the distance from the transmission electrode 17 and the reception electrode 18 is less than 3 cm (second trigger area).

As described above, a configuration for detecting a user who is an object to be detected can be obtained only by adding the second substrate 10 on which the optical sensor 8 and the capacitance sensor 9 are mounted. In addition, the optical sensor 8 and the capacitance sensor 9 can be mounted on the second substrate 10 and accommodated in the tail lamp 3. Further, even if the optical sensor 8 is accommodated in the tail lamp 3, there is no problem because the front is constituted by the lens 12 having translucency. Therefore, it is possible to cope with the slight change in the design of the tail lamp 3, and no complicated processing is required.

As shown in FIG. 3, the optical sensor 8 and the capacitance sensor 9 constitute a vehicle door opening / closing device 2 together with a collating means 19, a door driving means 20, and a control means 21 as detection means.

The collation means 19 includes a transceiver including an LF (Low Frequency) antenna outside the vehicle that receives a signal from a key (mobile device). The transceiver performs communication using a key and an LF signal, and is activated in response to a command from a host ECU (Electronic Control Unit) inside the vehicle. Thereby, key authentication processing is performed in the host ECU.

Although not shown, the door driving means 20 is configured by a motor, a gear mechanism, a damper, and the like that can rotate the door 25 (here, the back door) in the opening direction and the closing direction. The door driving means 20 is connected to the control means 21 via a communication cable so as to be communicable. The door driving means 20 and the control means 21 may be wirelessly connected.

The control means 21 includes a controller that includes a storage unit 22, a measurement unit 23, and a determination unit 24. In the present embodiment, one microcomputer is used as the control means 21, but the measurement unit 23, the determination unit 24, and the setting unit may be configured by individual microcomputers.

The storage unit 22 stores a control program, setting data such as a threshold value and a determination value used in the control program, and a data table used when calculating a distance from the detection result of the detection sensor.

The measuring unit 23 calculates the distance to the object to be detected based on the detection signal from the optical sensor 8 or the capacitance sensor 9.

The determination unit 24 determines whether or not the user who is the detection object is located in the first trigger area or the second trigger area based on the calculation result of the measurement unit 23.

Next, the operation of the vehicle door opening and closing device 2 will be described with reference to the flowcharts of FIGS.

As shown in FIG. 4, after initializing each data used in the door opening / closing process (step S1), it waits until key authentication is performed (step S2). If the authentication number of the key matches the authentication number registered in the ECU, after waiting for a predetermined time (for example, 0.025 seconds) (step S3), infrared light is transmitted from the light emitting element 15 (step S4), and the light is received. The reflected light is received by the element 16 (step S5).

Based on the reception result, it is determined whether or not the distance to the detected object is in the range of 5 to 30 cm, that is, whether or not the detected object is located in the first trigger area (step S6). And if a to-be-detected object is located in a 1st trigger area, an infrared trigger process will be performed (step S7).

As shown in FIG. 5, in the infrared trigger process, it is determined whether or not the door 25 is opened (step S7-1). If the door is open, a door closing output is performed (step S7-2), and if the door is closed, a door opening output is performed (step S7-3). And based on the output signal of a door closing output or a door opening output, the door drive means 20 is drive-controlled and a door is opened and closed automatically.

When the lens 12 is dirty and the optical sensor 8 cannot react, the user may not be detected by the optical sensor 8. Therefore, when it is not possible to detect that the user is located in the trigger region, the electrostatic capacity sensor 9 determines whether or not an object to be detected is located in the second trigger area. Here, the distance from the capacitive sensor 9 is set to a range in which the second trigger area is less than 3 cm.

If the object to be detected is located in the second trigger area, the electrostatic trigger process of FIG. 6 is executed in the same manner as the infrared trigger process. This corresponds to the case where the electrostatic trigger process is started by bringing the hand close to the tail lamp 3 when there is no response even when the user moves to the first trigger region. That is, as in the infrared trigger process, it is determined whether or not the door 25 is opened (step S10-1). If the door 25 is opened, a door closing output is performed (step S10-2). If the door 25 is closed, door opening output is performed (step S10-3). Then, based on the output signal of the door closing output or the door opening output, the door driving means 20 is driven and controlled to automatically open and close the door 25.

Thus, according to the first embodiment, the optical sensor 8 and the capacitance sensor 9 can detect the user who is the detection object both in the distance and in the vicinity. Therefore, even if there is a problem such as dirt on the tail lamp 3, the user can be reliably detected. Further, even if the lens 12 becomes dirty, the detection means itself is not directly affected. Further, by providing the detection means, the illumination of the LED 6 is not adversely affected.

Subsequently, another embodiment will be described. In each of the following embodiments, the configuration related to the case 4, the reflector 5, and the LED 6 is the same as that in the first embodiment. Hereinafter, members similar to those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

(Second Embodiment)
7A and 7B show the tail lamp 3 according to the second embodiment. In the tail lamp 3, the substrate is only the first substrate 7 on which the LEDs 6 are mounted, and the second substrate 10 is not provided. Further, the first substrate 7 extends downward as compared with the first embodiment. A capacitive sensor 9 including a transmission electrode 17 and a reception electrode 18 is mounted on the lower portion of the first substrate 7, and the optical sensor 8 is not provided.

According to the second embodiment, the user is not detected only by approaching the tail lamp 3, but is detected only when the user touches the tail lamp 3 or holds his hand in the vicinity thereof. Therefore, there are no steps S4 to S7 in the flowchart of FIG. 4, and only the electrostatic trigger process is executed when the user is detected by the capacitance sensor 9 in step S9. And the additional process to the reflector 5 becomes unnecessary, and it can manufacture at low cost as a still simpler structure.

(Third embodiment)
8A and 8B show the tail lamp 3 according to the third embodiment. In the tail lamp 3, a transmission electrode 17 is provided on the back surface of the first substrate 7. In addition, the reflector 5 is composed of the reception electrode 18.

According to the third embodiment, the detection area of the capacitance sensor 9 can be set wider than that in the second embodiment. Therefore, the user can be detected in a wide range in the vicinity of the tail lamp, which is easy to use. In addition, the electrode and the reflector 5 can be shared, and the configuration can be simplified by suppressing the number of parts.

(Fourth embodiment)
9A and 9B show the tail lamp 3 according to the fourth embodiment. In the tail lamp 3, the transmission electrode 17 and the reception electrode 18 are respectively disposed on the right inner surface and the left inner surface of the case body 11 when the tail lamp 3 is viewed from the front.

According to the fourth embodiment, similarly to the third embodiment, it is easy to detect the user by setting a wide detection area in the capacitance sensor 9.

(Fifth embodiment)
10A and 10B show a tail lamp 3 according to a fifth embodiment. In the tail lamp 3, a transmission electrode 17 and a reception electrode 18 constituting the capacitance sensor 9 are respectively disposed on both sides of the back surface of the lens 12. Here, both the transmission electrode 17 and the reception electrode 18 are made of a light-transmitting material, and are devised so as not to block light emitted from the LED 6. By arranging the capacitance sensor 9 in the vicinity of the lens, it is possible to obtain a configuration with even higher sensitivity.

It should be noted that an operation performed on the touch screen can be read by forming the transmission electrode 17 and the reception electrode 18 in a matrix (the electrodes adjacent to the grid are the transmission electrode 17 and the reception electrode 18). For example, it is possible to open the back door for some operations and open the side door for other operations.

(Sixth embodiment)
11A and 11B show a tail lamp 3 according to a sixth embodiment. In the tail lamp 3, the electrostatic capacity sensor 9 uses another component in which the transmission electrode 17 and the reception electrode 18 are integrally formed in a resin case by insert molding or the like. For this reason, the capacitance sensor 9 can be attached to the outside of the case body 11 by adhesion or the like. Therefore, the capacitance sensor 9 can be attached to the tail lamp 3 regardless of the shape of the tail lamp 3.

In addition, this invention is not limited to the structure described in the said embodiment, A various change is possible.

In the above-described embodiment, the lighting state of the LED 6 is not particularly mentioned. However, by performing the key authentication, the LED 6 is displayed in a blinking manner, and when the user is detected by the detecting means, the lighting state is changed. It is also possible to inform the user of the operation status.

In the above embodiment, the light sensor 8 is provided separately from the LED 6, but it is also possible to use both. That is, the LED 6 may be used in place of the light emitting element 15 of the optical sensor 8, and the distance to the object to be detected may be measured by emitting light from the LED 6 and receiving light by the light receiving element 16.

In the above embodiment, the door driving means 20 is driven and controlled only by whether or not the user is located in the trigger area in the optical sensor 8, but in addition to the trigger area, a start area farther than this is provided. The door driving means 20 may be driven and controlled by setting and detecting that the user has moved from the trigger area to the start area.

In the above-described embodiment, the configuration in which the light sensor 8 and the capacitance sensor 9 are employed in the tail lamp 3 has been described. .

DESCRIPTION OF SYMBOLS 1 ... Vehicle 2 ... Vehicle door opening and closing device 3 ... Tail lamp (lighting means)
4 ... Case 5 ... Reflector 6 ... LED (light source)
DESCRIPTION OF SYMBOLS 7 ... 1st board | substrate 8 ... Optical sensor 9 ... Capacitance sensor 10 ... 2nd board | substrate 11 ... Case main body 12 ... Lens 13 ... 1st opening 14 ... 2nd opening 15 ... Light emitting element 16 ... Light receiving element 17 ... Transmitting electrode 18 ... Reception electrode 19 ... Verification means 20 ... Door drive means 21 ... Control means 22 ... Storage part 23 ... Measurement part 24 ... Determination part 25 ... Door

Claims

Driving means for opening and closing the door of the vehicle;
Detecting means for detecting an object located in a detection range outside the vehicle;
Control means for opening and closing the door by controlling the drive means based on the detection result of the detection means;
With
The vehicle door opening and closing device characterized in that the detection means is arranged inside an illumination means arranged behind the vehicle.
The vehicle door opening and closing device according to claim 1, wherein the detection means is arranged behind a reflector that reflects light from a light source provided in an illumination means arranged at the rear of the vehicle.
The vehicle door opening and closing device according to claim 1, wherein the detection means is arranged in an opening of a reflector that reflects light from a light source provided in an illumination means arranged at the rear of the vehicle.
The said detection means has a transmission part which transmits infrared rays, and a reception part which receives the reflected wave in the to-be-detected object of the transmitted infrared rays, The any one of Claim 1 to 3 characterized by the above-mentioned. The vehicle door opening and closing device as described.
A control board on which a control unit for controlling a voltage applied to the light source of the illumination unit is further mounted;
The vehicle door opening and closing device according to any one of claims 1 to 4, wherein the detection means is provided on the control board.
The vehicle door opening / closing device according to any one of claims 1 to 5, wherein the detection means is a capacitance sensor configured by a circuit board having an electrode and a detection circuit.
The electrode includes a transmission electrode electrically connected to the detection circuit, and a reception electrode that receives electric lines of force generated from the transmission electrode,
The vehicle door opening and closing device according to claim 6, wherein the reception electrode is a reflector provided inside the illumination means.
The illumination means includes a box-shaped case that houses a light source and a reflector, and a lens that is attached to the front surface of the case.
The vehicle door opening and closing device according to claim 6, wherein the electrode is disposed along an inner surface of the case.
The illumination means includes a box-shaped case that houses a light source and a reflector, and a lens that is attached to the front surface of the case.
The vehicle door opening and closing device according to claim 6, wherein the electrode is disposed on the lens as a transparent electrode.
Driving means for opening and closing the door of the vehicle;
Detecting means for detecting an object located in a detection range outside the vehicle;
Control means for opening and closing the door by controlling the drive means based on the detection result of the detection means;
With
The vehicle door opening and closing apparatus characterized in that the detection means is also used as a light source of an illumination means arranged at the rear of the vehicle.
The control means determines whether the driving means is an operation pattern for performing door opening / closing control from the distance change detected by the detecting means, and the driving means is determined to be a predetermined operation pattern. The vehicle door opening and closing device according to any one of claims 1 to 9, wherein the door is opened and closed by controlling driving.
Driving means for opening and closing the door of the vehicle;
In the case where the front surface facing the outside of the vehicle is composed of a lens, a lighting means that houses a light source and a reflector,
A detecting means disposed on the back surface of the case for detecting an object to be detected located in a detection range outside the vehicle;
Control means for opening and closing the door by controlling the drive means based on the detection result of the detection means;
A vehicle door opening and closing device comprising: