WO2015025841A1

WO2015025841A1 - Vehicle door-open warning illumination device

Info

Publication number: WO2015025841A1
Application number: PCT/JP2014/071643
Authority: WO
Inventors: 崇若杉
Original assignee: 矢崎総業株式会社
Priority date: 2013-08-22
Filing date: 2014-08-19
Publication date: 2015-02-26
Also published as: JP6411014B2; JP2015039979A

Abstract

A vehicle door-open warning illumination device (10) is provided with: a bar-like or band-like light guide member (11) extending from a cabin-side inner surface of an outer-opening door (2) of a vehicle to a side surface of a door rear portion, with an LED unit (13) optically connected to one end of the light guide member (11); and a sub-ECU (16) that causes the light guide member (11) to emit light. The sub-ECU (16) causes the light guide member (11) to emit red light when one of a door-open detection signal detecting the opening of the outer-opening door (2) or a detection signal detecting the approach of a vehicle or a pedestrian rearward of the subject vehicle is input. When both of the detection signals are input, the sub-ECU (16) causes the light guide member (11) to emit blinking red light.

Description

Vehicle door open notification lighting device

The present invention relates to a lighting device for vehicle door opening notification, and in particular, alerts passengers when opening an exterior door of a vehicle such as an automobile, and also includes a vehicle including a light vehicle such as a rear bicycle and a pedestrian. The present invention relates to a vehicle door open notification illumination device suitable for alerting a third party.

In order to improve the safety of a vehicle such as an automobile, an illumination device for the interior of the vehicle of the own vehicle is detected by detecting, for example, a laser sensor or the like when a vehicle such as another automobile behind is approaching or approaching a vehicle when the route is changed. An approach notification device has been proposed that lights or blinks to notify the driver or the like (see Patent Document 1). Room lamps, reading lamps, front door courtesy lamps, front foot lamps, and the like have been proposed as lighting devices in the vehicle interior used for the approach notification device. According to this, safety can be improved by alerting the driver or the like of the own vehicle. However, in the approach notification device of Patent Document 1, it is not considered to notify a third party such as a vehicle or a pedestrian including a light vehicle such as a rear bicycle when the outside door is opened.

On the other hand, in order to notify the vehicle behind the door that the door is opened, a plurality of light emitting elements are arranged side by side in the height direction of the rear side of the door, that is, the thickness portion of the door, and the plurality of light emitting elements are controlled to blink. In addition, there has been proposed an illuminating device that displays a light such as an arrow indicating a door opening direction by using an afterimage effect (see Patent Document 2). According to this illuminating device, it is possible to alert the rear vehicle and call attention. Patent Document 3 proposes that an LED lamp is embedded in the rear side surface of a door and the LED lamp is turned on when the door is opened in order to notify the rear vehicle and call attention.

JP 2008-29979A (JP 2008-299779 A) JP 2010-167984 A (JP 2010-167984 A) JP 2005-82127 A (JP２００2005-082127 A)

However, all of the lighting devices of Patent Documents 1 to 3 call attention to the passenger who opens the opening door, that is, pay attention to the vehicle or pedestrian behind the passenger when opening the opening door. It is not taken into consideration to notify the opening.

The problem to be solved by the present invention is to provide a vehicle door open notification illumination device suitable for alerting a vehicle or a pedestrian behind when a passenger opens an exterior door of a vehicle. .

In order to solve the above-described problems, a vehicle door open notification illumination device according to an aspect of the present invention is a bar-shaped or belt-shaped light emitting device that is provided over the inner surface of the exterior door of the vehicle and the side surface of the rear portion of the door. And a control unit for controlling light emission of the light emitting unit. The control unit detects either one of a door open detection signal for detecting that the outer door is opened and an approach detection signal for a rear vehicle or the like that senses that a vehicle or a pedestrian has approached behind the host vehicle. Is input, the light emitting unit is caused to emit light in the first light emission mode, and when both the door open detection signal and the approach detection signal such as the rear vehicle are input, the light emitting unit is set in the second light emission mode. Make it emit light. Here, the second light emission mode is a light emission mode having a higher alerting power than the first light emission mode.

With such a configuration, when at least one of the door open detection signal and the rear vehicle approach detection signal is used as a trigger signal, when the occupant attempts to open the door or starts to open, Since the light emitting portion provided on the inner surface of the hinged door on the passenger compartment side emits light, it is possible to alert the passenger in the passenger compartment. As a result, when the passenger opens the door, he / she remembers that he / she should pay attention to the vehicle or pedestrian behind him, so he / she can adjust how the door is opened, and the safety of the vehicle / pedestrian Can be improved.

The control unit may cause the light emitting unit to emit light in the third light emission mode when a door knob contact detection signal that detects that a vehicle occupant has touched the door knob of the outward opening door is input. According to this, since the light emitting portion provided on the inner surface of the passenger compartment side emits light just by touching the door knob before the passenger opens the door, the passenger has more room for the rear vehicle or pedestrian. This makes it possible to improve the safety of vehicles such as automobiles and pedestrians. Note that the third light emission mode is a light emission mode in which the alerting is the same as or lower than the first light emission mode.

The light-emitting portion may be formed by a rod-shaped or strip-shaped light guide having one end connected to the light-emitting element, or may be formed by arranging a plurality of light-emitting elements in a straight line. According to this, since the bar-shaped or belt-shaped or straight light-emitting portion provided to extend on the inner surface of the door on the passenger compartment side emits light, the alerting effect can be further improved.

The operation of the first light emission mode, the second light emission mode, and the third light emission mode may be different depending on the color of the light emitting unit, blinking, blinking speed, and combinations thereof. For example, “red light” indicates “warning”, “blue or white light” indicates “light alert”, and “red flash” indicates “heavy attention”. Can do. Furthermore, by increasing the flashing speed of “red flashing” in accordance with the approaching speed or distance of the rear vehicle, it is possible to prompt the passenger to further “heavy attention”.

It should be noted that only the light emitting portion of the outer opening door on the side on which the passenger is riding can be made to emit light in conjunction with the seat belt.

According to the aspect of the present invention, it is possible to provide a vehicle door open notification illumination device that is suitable for alerting the vehicle or pedestrian behind when the passenger opens the door.

Drawing 1 (a) and 1 (b) are appearance lineblock diagrams of a vehicle door open notification lighting device concerning an embodiment. FIG. 2 is a system configuration diagram of a control unit of the vehicle door open notification illumination device according to the embodiment. FIG. 3 is a flowchart illustrating Example 1 of the light emission mode of the control unit. FIG. 4 is a flowchart illustrating Example 2 of the light emission mode of the control unit. FIG. 5 is a flowchart showing Example 3 of the light emission mode of the control unit. FIG. 6 is a flowchart illustrating Example 4 of the light emission mode of the control unit. FIG. 7 is a flowchart illustrating Example 5 of the light emission mode of the control unit. FIG. 8 is a flowchart showing Example 6 of the light emission mode of the control unit.

Hereinafter, the vehicle door open notification illumination device according to the embodiment will be described with reference to the drawings.

The vehicle door opening notification illumination device 10 according to the embodiment is provided on the left and right front doors of the automobile 1. However, in order to simplify the illustration and description, as shown in FIG. The vehicle door opening notification illumination device 10 attached to the outer opening door 2 will be described as an example. In FIG. 1A, an outwardly opening door (hereinafter, abbreviated as a door as appropriate) 2 is shown in an opened state. As shown in FIG. 1B, the vehicle door open notification illumination device 10 includes a light guide 11 that is a rod-like or strip-like light emitting part, and an optical connection part 12 connected to one end on the front side of the light guide 11. And an LED unit 13 which is a light emitting element optically coupled to the optical connecting portion 12.

The light guide 11 is formed so as to efficiently guide the light emitted from the LED unit 13 from one end to the other end. In addition, the light guide 11 includes an other end portion 11 a that extends from the front side to the rear side on the inner surface of the door 2 on the vehicle interior side and is bent at a thickness portion 3 that is a rear side surface of the door 2. Yes. As shown in FIG. 2, the LED unit 13 includes red (RED), green (GREEN), and blue (BLUE)

LEDs

13a, 13b, and 13c, and Zener diodes connected in parallel to the

LEDs

13a, 13b, and 13c. 14a, 14b, 14c and resistors 15a, 15b, 15c connected in series to the

LEDs

13a, 13b, 13c. The LED unit 13 is formed so that the emission color, lighting, extinguishing, and blinking can be controlled by a sub ECU (electronic control unit) 16 that is a control unit. That is, the anodes of the

LEDs

13a, 13b, and 13c are connected to the power source + B of the sub ECU 16. Lighting signals are supplied to the cathodes of the

LEDs

13a, 13b, and 13c through the resistors 15a, 15b, and 15c, respectively. The sub ECU 16 includes an arithmetic processing unit such as a microcomputer, a power source, a memory, and the like. Various information (for example, a trigger signal described later) is input to the sub ECU 16 from the upper main ECU 17.

The trigger signal is a signal that triggers the LED unit 13 to light up. In the vehicle door open notification illumination device 10 according to the embodiment, the trigger signal includes a door open detection signal output from a door open / close detection device (not shown) that detects that the outer door 2 has been opened, A rear vehicle approach detection signal output from a rear sensing device (not shown) that senses that a vehicle or a pedestrian has approached behind, and a door knob contact that detects that a passenger has touched the door knob of the outer door 2 A door knob contact detection signal output from a detection device (not shown) and an ignition detection signal for detecting that the ignition key is in the ON state are included. The sub ECU 16 is configured to turn on, blink, and turn off the LED unit 13 in a preset light emission mode and to control the light emission color in accordance with a combination of trigger signals input from the main ECU 17.

Next, a specific control example of the sub ECU 16 that controls the LED unit 13 will be described by dividing it into Example 1-6. Example 1-3 is an example of controlling the LED unit 13 in a preset light emission mode based on a combination of trigger signals in the vehicle door open notification illumination device 10 including the multi-color LED unit 13.

Example 1
A flowchart of the light emission mode control of Example 1 is shown in FIG. When the light emission mode control of the sub ECU 16 is started, it is determined whether or not the input ignition signal IG is on (S1). If it is on, it is determined whether or not the doorknob contact detection signal is on (S2). If the doorknob contact detection signal is off, the LED unit 13 is caused to emit light by normal illumination set in advance (S3). For example, light emission by normal electric decoration is a mode in which the LED unit 13 emits light for the purpose of electric decoration, and is a light emission mode different from alerting. When the doorknob contact detection signal is on, it is determined whether the approach detection signal for the rear vehicle etc. is on (S4). If the approach detection signal such as the rear vehicle is off, it is relatively safe, and the LED unit 13 is caused to emit light in, for example, “blue” or “white” light alert mode (S5). Thereby, although a passenger needs to fully confirm the safety of the back, even if the door 2 is opened, it is safe.

On the other hand, if the approach detection signal such as the rear vehicle is on, it is determined whether or not the door open detection signal is on (S6). If the door open detection signal is off, the LED unit 13 is caused to emit light in, for example, a “red” alerting mode in order to call attention when the passenger opens the door (S7). At this time, if the door open detection signal is ON, that is, if the passenger starts to open the door, the LED unit 13 blinks, for example, in “red” in order to draw sufficient attention. Light is emitted in the awakening mode (S8).

(Example 2)
As shown in the flowchart of FIG. 4, the light emission mode control of the second embodiment is different from the light emission mode control of the first embodiment in that S4 and S6 of the first embodiment are replaced. S4 is set to S16. Since the other steps are the same as those in the first embodiment, the same reference numerals are given and description thereof is omitted.

Example 3
The light emission mode control of the third embodiment is different from the flow chart of FIG. 5 in that step S2 in the light emission mode control of the second embodiment is omitted. Then, it is determined whether or not the door open detection signal is on (S14). When the door open detection signal is off, the LED unit 13 is caused to emit light by normal lighting (S3). Since the other points are the same as those of the second embodiment, the same reference numerals are given and description thereof is omitted.

As described above, in the vehicle door open notification illumination device 10 according to the embodiment, in any of Examples 1-3, the detection signal of at least one of the door open detection signal and the approach detection signal such as the rear vehicle is used as a trigger signal. When the passenger tries to open or starts to open the door 2, the light guide 11 provided on the inner surface of the door 2 on the passenger compartment side emits light, which may alert the passenger. it can. As a result, according to the vehicle door opening notification illumination device 10 according to the embodiment, when the passenger opens the door 2, the passenger 2 must be careful of the vehicle or pedestrian behind, and the door 2 is opened. Therefore, the safety of vehicles such as automobiles and pedestrians can be improved.

Further, according to the first and second embodiments, when the detection signal that detects that the vehicle occupant has touched the door knob of the door 2 is input to the sub ECU 16, the light guide 11 is set to “blue” or “white”. The light guide 11 emits light only when the passenger touches the door knob. As a result, the passenger notices that he / she must pay more attention to the vehicle or pedestrian behind, and the safety of vehicles such as automobiles and pedestrians can be improved.

In the vehicle door open notification illumination device 10 according to the embodiment, an example in which the light emitting part is formed by a rod-like or belt-like light guide 11 having one end connected to the light emitting element is shown, but the present invention is not limited thereto. For example, a plurality of light emitting elements such as LEDs can be arranged in series. In any case, since the bar-shaped, belt-shaped or serial light-emitting portion provided on the inner surface of the door 2 on the passenger compartment side emits light, the alerting effect can be further improved.

Further, in the first and second embodiments, the light emission mode of the light guide 11 optically coupled to the LED unit 13 is changed depending on the color, light emission, blinking, and combinations thereof. Can be used properly. For example, the color of the light emitting part is divided, “red light emission” is classified as “warning”, “blue or white light emission” is “light warning”, “red flashing” is classified as “heavy warning”, etc. be able to. Furthermore, if the blinking speed of “red blinking” is increased according to the approaching speed or distance of the rear vehicle, it is possible to urge the passenger to further “heavy attention”.

Next, a specific light emission mode control example of the sub ECU 16 when the LED unit 13 of the vehicle door open notification illumination device 10 according to the embodiment is changed to a single color (red) LED is changed to the light emission mode of Example 4-6. Separately described. Example 4-6 is an example in which the red LED is controlled by a light emission mode corresponding to a preset combination of trigger signals based on the same combination of trigger signals as in Example 1-3.

Example 4
As shown in the flowchart of FIG. 6, the fourth embodiment is different from the first embodiment in that the light emission mode of the first embodiment is “red light emission” and “flashing red”. Since it is the same as Example 1, description is abbreviate | omitted.

(Example 5)
As shown in the flowchart of FIG. 7, the fifth embodiment is different from the second embodiment in that the light emission mode of the second embodiment is “red light emission” and “flashing red”. Since it is the same as Example 2, description is abbreviate | omitted.

(Example 6)
As shown in the flowchart of FIG. 8, the sixth embodiment is different from the third embodiment in that the light emission mode of the third embodiment is “red light emission” and “red blinking”. Unlike the other embodiments 1 to 5, light is emitted in the normal illumination mode even when the IG detection signal is off. Since the other points are the same as those of the third embodiment, description thereof is omitted.

As mentioned above, although this invention was demonstrated based on one Embodiment and an Example, this invention is not limited to these, It is possible to implement in the form changed or changed in the range of the main point of this invention. Such modifications or variations are within the scope of the claims of this application. For example, in conjunction with the seat belt, only the light guide 11 of the outer opening door 2 on the side on which the passenger is on can be caused to emit light.

According to the present invention, it is possible to provide a vehicle door open notification illuminating device suitable for alerting a vehicle or a pedestrian behind when a passenger opens an outwardly opening door.

Claims

A vehicle door open notification lighting device,
A light-emitting section that can emit light in the form of a rod or strip provided over the inner surface of the vehicle exterior side of the exterior door of the vehicle and the side surface of the rear of the door;
A control unit for controlling the light emission of the light emitting unit,
The control unit is either one of a door open detection signal for detecting that the outer opening door is opened and an approach detection signal for a rear vehicle that senses that a vehicle or a pedestrian has approached behind the host vehicle. When a detection signal is input, the light emitting unit is caused to emit light in the first light emission mode, and when both the door open detection signal and the rear vehicle approach detection signal are input, the light emitting unit is turned on. A vehicle door open notification illuminating device that emits light in a second light emission mode.
The vehicle door open notification illumination device according to claim 1,
The control unit causes the light-emitting unit to emit light in a third light-emitting mode when a door knob contact detection signal that detects that a vehicle occupant has contacted the door knob of the exterior door is input. A vehicle door open notification illumination device.
The vehicle door open notification illumination device according to claim 1,
The light emitting portion is formed of a rod-shaped or belt-shaped light guide body, one end of which is connected to a light emitting element.
The vehicle door open notification illumination device according to claim 2,
The vehicle door characterized in that the first light-emitting mode, the second light-emitting mode, and the third light-emitting mode have different operations depending on the color of the light-emitting portion, blinking, blinking speed, and combinations thereof. Open notification lighting device.