JP2017087769A - Lighting system and on-vehicle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system capable of lighting footing of an operator, and to provide an on-vehicle device.SOLUTION: A lighting system 1 lights the outside of a vehicle and includes: an on-vehicle communication part; a portable machine 4 which wirelessly communicates with the on-vehicle communication part and is portable at the outside of the vehicle; a calculation part which calculates an existence position of the portable machine 4 on the basis of a result of communication between the on-vehicle communication part and the portable machine 4; and a lighting control part which controls operation of floodlights so that the floodlights for lighting the outside of the vehicle light the existence position. A receiving part 23 and a transmission part 24 function as the on-vehicle communication part. The control part 21 functions as the calculation part and the lighting control part. Head lights 11, backup lights 12, and movable lights 13 function as the floodlights.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an illumination system that illuminates the outside of a vehicle and an in-vehicle device.

Conventionally, a vehicle illumination system that illuminates the outside of a vehicle when a driver is present around the vehicle has been proposed (see Patent Document 1).
The vehicle lighting system described in Patent Literature 1 assumes that the driver is approaching the vehicle when communication with the portable device carried by the driver changes from non-established to established. Lighting around the vehicle with headlamps and fog lamps. Next, when the door is opened, the vehicular lighting system assumes that the driver has reached the door, turns off the headlamp, the fog lamp, and the like, and illuminates the ground near the door with the door lamp.

JP 2011-105163 A

  However, the exterior lighting by the vehicle illumination system described in Patent Document 1 only illuminates the periphery of the vehicle regardless of the current location of the driver while the driver is approaching the vehicle.

  This invention is made | formed in view of such a situation, The main objective is to provide the illumination system and vehicle equipment which can illuminate a driver | operator's step.

  An illumination system according to an aspect of the present invention is an illumination system that illuminates the outside of a vehicle, and includes a vehicle-mounted communication unit, a portable device that wirelessly communicates with the vehicle-mounted communication unit, and is portable outside the vehicle, the vehicle-mounted communication unit, and the vehicle Based on the result of communication with the portable device, a calculation unit that calculates the presence position of the portable device, and based on the calculation result of the calculation unit, the illumination lamp that illuminates the outside of the vehicle illuminates the presence position. An illumination control unit for controlling the operation of

  An in-vehicle device according to an aspect of the present invention is an in-vehicle device for illuminating the outside of the vehicle, and the portable device is based on a communication result between the in-vehicle communication unit and an external portable device that performs wireless communication with the in-vehicle communication unit. A calculation unit that calculates the presence position of the machine, and an illumination control unit that controls the operation of the lamp so that an external illumination lamp that illuminates the outside of the vehicle illuminates the presence position based on the calculation result of the calculation unit Prepare.

  Note that the present application can be realized not only as an illumination system or an in-vehicle device including such a characteristic calculation unit and a lighting control unit, but also with such characteristic calculation processing and lighting control processing as a step. It can be realized as a method or a program for causing a computer to execute such steps. Further, part or all of the in-vehicle device can be realized as a semiconductor integrated circuit, or can be realized as an illumination system or other system including the in-vehicle device.

  According to the above, it is possible to provide an illumination system and an in-vehicle device that can illuminate the driver's feet.

It is a block diagram which shows the structure of the illumination system which concerns on Embodiment 1 of this invention. It is a mimetic diagram showing an example (front of vehicles) of hospitality lighting by a lighting system. It is a schematic diagram which shows an example (vehicle side) of hospitality illumination. It is a schematic diagram which shows an example (vehicle vicinity) of hospitality illumination. It is a flowchart which shows the procedure of the position calculation process performed with an illumination system. It is a flowchart which shows the procedure of the illumination execution process performed with an illumination system. It is a flowchart which shows the procedure of an illumination execution process. It is a schematic diagram which shows another example (obstacle) of hospitality illumination. It is a schematic diagram which shows an example of the hospitality illumination by the illumination system which concerns on Embodiment 2 of this invention.

[Description of Embodiment of the Present Invention]
First, embodiments of the present invention will be listed and described. Moreover, you may combine arbitrarily at least one part of embodiment described below.

(1) An illumination system according to an aspect of the present invention is an illumination system that illuminates the outside of a vehicle, and includes a vehicle-mounted communication unit, a portable device that communicates wirelessly with the vehicle-mounted communication unit, and is portable outside the vehicle, and the vehicle-mounted communication unit. And a calculation unit that calculates the presence position of the portable device based on a communication result between the portable device and the lighting unit that illuminates the outside of the vehicle based on the calculation result of the calculation unit illuminates the presence position. An illumination control unit that controls the operation of the illumination lamp.

  In this aspect, the illuminating lamp illuminates the location of the portable device. Usually, since the driver carries the portable device, the feet of the driver are illuminated.

(2) It is preferable that the illumination lamp can change the illumination direction, and the illumination control unit controls the illumination direction of the illumination lamp based on the calculation result of the calculation unit.

  In this aspect, by changing the illumination direction of the illuminating lamp, the driver's feet can be reliably illuminated following the movement of the driver.

(3) There are a plurality of the illuminating lamps, the illuminable ranges are different, and the illuminating control unit selects at least one of the illuminating lamps based on a calculation result of the calculating unit. And a lighting unit that turns on the illumination lamp selected by the selection unit is preferable.

  In this aspect, the illuminating lamp in which the presence position of the portable device is included in the illuminable range illuminates the presence position of the portable device. Therefore, if the illumination lamp is switched with the movement of the driver, the driver's feet can be reliably illuminated following the movement of the driver.

(4) The calculation unit further includes a contact / separation determination unit that further calculates a moving direction of the portable device and determines contact / separation of the portable device with respect to a vehicle based on a calculation result of the calculation unit. When the determination unit determines that the portable device is approaching, it is preferable that the illumination control unit controls the operation of the illumination lamp so as to illuminate the presence position.

In this aspect, the feet of the driver approaching the vehicle are illuminated. At this time, since the illumination light from the vehicle serves as a mark, the driver can easily recognize the position of the vehicle to be boarded.
On the other hand, the feet of the driver moving away from the vehicle are not illuminated. That is, useless illumination can be suppressed.

(5) The calculation unit further calculates a moving direction of the portable device, and the illumination control unit operates the illumination lamp so as to illuminate the presence position and the moving direction of the portable device ahead of the existing position. The structure which controls is preferable.

  In this aspect, it is possible to illuminate the driver's feet and the front of the driver's feet. This is because the presence position of the portable device and the ground in front of the portable device in the moving direction (that is, in front of the driver's traveling direction) than the existing position of the portable device are illuminated. In this case, safety is further improved.

(6) An illumination determination unit that determines whether or not to illuminate the existence position is provided, and when the illumination determination unit determines NO, the illumination control unit does not perform illumination with the illumination lamp, or It is preferable to control the operation of the illuminating lamp so that the illuminating lamp illuminates a predetermined position.

  In this aspect, it is possible to switch between the case of illuminating the driver's feet and the case of not illuminating (or illuminating a predetermined position other than the driver's feet), thereby suppressing unnecessary illumination. And convenience can be improved.

(7) The structure provided with the vehicle equipment which has the said vehicle-mounted communication part, a calculating part, and an illumination control part is preferable.

  In this aspect, a system can be easily constructed using an in-vehicle device such as an ECU (Electronic Control Unit) as a control center.

(8) The in-vehicle device according to one aspect of the present invention is an in-vehicle device for illuminating the outside of the vehicle, based on a communication result between the in-vehicle communication unit and an external portable device that performs wireless communication with the in-vehicle communication unit. A calculation unit that calculates the presence position of the portable device, and an illumination control unit that controls the operation of the illumination lamp so that an external illumination light that illuminates the outside of the vehicle illuminates the presence position based on the calculation result of the calculation unit With.

  In this aspect, an illumination system according to an aspect of the present invention can be configured.

[Details of the embodiment of the present invention]
Specific examples of the illumination system and the in-vehicle device according to the embodiment of the present invention will be described below with reference to the drawings. In addition, this invention is not limited to these illustrations, is shown by the claim, and intends that all the changes within the meaning and range equivalent to a claim are included.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a lighting system 1 according to Embodiment 1 of the present invention.
The illumination system 1 realizes illumination that continues to illuminate the feet of the driver approaching the vehicle 5 until the driver gets on (hereinafter referred to as hospitality illumination).
For this purpose, the lighting system 1 includes two headlamps 11, 11, reverse lamps 12, 12, movable lamps 13, 13, an open / close detection unit 14, an obstacle detection unit 15, and an input unit 16. And an ECU 2 (on-vehicle device), a receiving antenna 31, a plurality of transmitting antennas 32, 32,... Other than the portable device 4 is mounted on the vehicle 5.
The headlamps 11 and 11, the reverse lamps 12 and 12, and the movable lamps 13 and 13 (one each shown in FIG. 1) are illumination lamps that illuminate the outside of the vehicle. Hereinafter, when these are called without distinction, they are called exterior lights.

Each headlamp 11 is a headlight. The left (and right) headlamp 11 illuminates the front left side (front right side) of the vehicle 5.
Each reverse lamp 12 is a back lamp. The left (and right) reverse lamp 12 illuminates the rear left side (front right side) of the vehicle 5.

Each movable lamp 13 includes a light source main body 131 and a main body driving unit 132.
The light source body 131 is disposed on the door mirror.
The main body drive unit 132 includes, for example, first and second rotation shafts and a motor that rotates each rotation shaft. The first rotation axis is arranged in a direction orthogonal to the optical axis of the light source body 131 and rotates the light source body 131. The second rotation axis is arranged in a direction orthogonal to the optical axis of the light source body 131 and the first rotation axis, and rotates the light source body 131 and the first rotation axis. The main body driving unit 132 changes the direction of the light source main body 131. As a result, the illumination direction of the light source body 131 is changed.
The movable lamp 13 in which the light source body 131 is arranged on the left (and right) door mirror illuminates the left (and right) of the vehicle 5.

The arrangement position of the light source body 131 is not limited to the door mirror. Further, the main body drive unit 132 may include one or more rotation shafts.
The change in the illumination direction of the movable lamp 13 may be due to a change in the direction of the door mirror.

  The opening / closing detection unit 14 detects opening / closing of the door on the driver's seat side. The open / close detection unit 14 includes, for example, a courtesy switch. The open / close detection unit 14 gives the detection result to the ECU 2.

  The obstacle detection unit 15 detects an obstacle present around the vehicle 5. The obstacle detection unit 15 includes a sensor main body and a detection result calculation unit. The sensor body includes, for example, an ultrasonic sensor or a proximity sensor. The detection result calculation unit calculates the presence / absence of an obstacle around the vehicle 5 based on the detection result of the sensor body, and the position of the obstacle when there is an obstacle, and the calculation result (that is, the obstacle detection unit) 15 detection results) is given to the ECU 2. Here, the obstacle around the vehicle 5 is a parking lot fence, a building wall, or another vehicle.

The input unit 16 includes a touch panel or a hard key. The input unit 16 receives an illumination necessary command indicating that the hospitality illumination is executed or an illumination unnecessary command indicating that the hospitality illumination is not performed. The illumination required command or the illumination unnecessary command received by the input unit 16 is given to the ECU 2.
The driver inputs a lighting requirement command using the input unit 16 when hospitality lighting is necessary, and inputs a lighting unnecessary command when it is not necessary.
Note that it may be possible to input an illumination necessity command or an illumination unnecessary command using an input unit (not shown) of the portable device 4.

The ECU 2 includes a control unit 21, a storage unit 22, a reception unit 23, and a transmission unit 24.
The control unit 21 executes various processes according to the computer program. A storage unit 22 to a transmission unit 24 are connected to the control unit 21, respectively.
Detection results given to the ECU 2 by the open / close detection unit 14 and the obstacle detection unit 15 are input to the control unit 21. The illumination required command or the illumination unnecessary command given to the ECU 2 by the input unit 16 is input to the control unit 21.
The control unit 21 transmits control information for controlling the operations of the headlamps 11 and 11, the movable lamps 13 and 13, and the reverse lamps 12 and 12. In addition, the control unit 21 writes the input illumination necessary command or illumination unnecessary command in the storage unit 22.

The storage unit 22 uses a non-volatile storage device. The storage unit 22 stores a computer program that the control unit 21 should follow.
In addition, the storage unit 22 stores an illuminable range of each exterior light (that is, information indicating a position where each exterior light can be illuminated).
Furthermore, the storage unit 22 stores either one of the illumination necessary command and the illumination unnecessary command. The writing of the illumination necessary command or the illumination unnecessary command by the control unit 21 overwrites the illumination necessary command or the illumination unnecessary command already stored in the storage unit 22.
A part of the storage area of the storage unit 22 is a history unit 221. The history unit 221 stores at least the latest two history of the location of the portable device 4.

The receiving unit 23 is connected to the receiving antenna 31. The receiving unit 23 receives a response signal (described later) transmitted using radio waves in the RF band via the receiving antenna 31 and inputs the received response signal to the control unit 21.
The area that can be communicated by radio waves in the RF band is wider than that in the LF band. Therefore, the arrangement of the receiving antenna 31 in the vehicle 5 is not particularly limited.

The transmission unit 24 is connected to each of the transmission antennas 32, 32,... (Only one is shown in FIG. 1). The transmission unit 24 is controlled by the control unit 21 to transmit a detection signal (described later) using radio waves in the LF band via the transmission antennas 32, 32,. The intensity of the detection signal transmitted from each transmission antenna 32 is set so that the portable device 4 inside or outside the vehicle can receive detection signals from two or more transmission antennas 32, 32,.
Each of the transmission antennas 32, 32,... Is disposed, for example, at the front portion of the vehicle body, the rear portion of the vehicle body, the left portion of the vehicle body, the right portion of the vehicle body, and the central portion in the front / rear / left / right direction.

The portable device 4 is a portable wireless communication device (for example, smart key) carried by the driver.
The portable device 4 receives the detection signal transmitted from the transmission unit 24. When receiving the detection signal, the portable device 4 transmits a response signal indicating the intensity of the received detection signal using radio waves in the RF band.

The strength of the detection signal received by the portable device 4 becomes smaller than the strength at the time of transmission as the separation distance between the transmission antenna 32 and the portable device 4 is longer. Therefore, if the arrangement position of at least two transmission antennas 32 and 32 and the amount of decrease in the intensity of the detection signal transmitted through each transmission antenna 32 and 32 are known, the portable device 4 can be used when the detection signal is received. Can be calculated.
That is, the receiving unit 23 and the transmitting unit 24 function as an in-vehicle communication unit in the embodiment of the present invention. The detection signal is used to calculate the location of the portable device 4. The response signal is a communication result between the receiving unit 23 and the transmitting unit 24 and the portable device 4.
From the history of the location of the portable device 4, the moving direction of the portable device 4 can be calculated.

In the present embodiment, the transmission unit 24 repeatedly transmits a detection signal at an appropriate timing when the surroundings of the vehicle 5 are dark, such as at night or in an underground parking lot. For this purpose, the vehicle 5 is equipped with an optical sensor (not shown) that detects the brightness around the vehicle 5, for example. The detection result of the optical sensor is given to the control unit 21. The control unit 21 determines that the surroundings of the vehicle 5 are dark when the detection result of the optical sensor is equal to or lower than the predetermined brightness.
In addition, a detection signal is not limited to the structure transmitted automatically, when the circumference | surroundings of the vehicle 5 are dark. For example, a driver approaching the vehicle 5 inputs a communication start command using the input unit of the portable device 4. The control unit 21 transmits a detection signal when a communication start command is received.

2 to 4 are schematic diagrams illustrating an example of hospitality illumination by the illumination system 1.
Since the driver is carrying the portable device 4, if the location of the portable device 4 is illuminated, the feet of the driver are also illuminated.
FIG. 2 shows a case where the driver's feet in front of the vehicle 5 are illuminated by the headlamp 11.
FIG. 3 shows a case where the driver's feet on the side of the vehicle 5 are illuminated by the movable lamp 13.
FIG. 4 shows a case where the driver's feet near the door of the vehicle 5 are illuminated by the movable lamp 13. At this time, the ground near the door is illuminated.

FIG. 5 is a flowchart showing a procedure of position calculation processing executed in the illumination system 1.
When the transmission / reception of the detection signal and the response signal is established with the portable device 4, the control unit 21 starts executing the position calculation process at every predetermined timing.
The control unit 21 controls the reception unit 23 and the transmission unit 24 to communicate with the portable device 4 (S11). As a result of the processing of S <b> 11, a detection signal is transmitted to the portable device 4 via each transmission antenna 32, 32,..., And a response signal corresponding to the transmitted detection signal is received via the reception antenna 31.
Next, the control unit 21 calculates the presence position of the portable device 4 based on the received response signal (S12), and associates the calculation result with the time measurement result of a clock unit (not shown) and stores it in the history unit 221 ( S13), the position calculation process is terminated.

6 and 7 are flowcharts showing the procedure of the illumination execution process executed in the illumination system 1.
When the transmission / reception of the detection signal and the response signal is established with the portable device 4, the control unit 21 starts executing the position calculation process at every predetermined timing.
As illustrated in FIG. 6, the control unit 21 determines whether or not an illumination necessary command is stored in the storage unit 22 (S31).
When the illumination necessary instruction is stored in the storage unit 22 (YES in S31), the control unit 21 refers to the latest location of the portable device 4 stored in the history unit 221, and the latest information on the portable device 4 is stored. It is determined whether or not the location is outside the vehicle, that is, whether or not the portable device 4 is outside the vehicle (S32).

When the portable device 4 is outside the vehicle (YES in S32), the control unit 21 refers to the history of the location of the portable device 4 stored in the history unit 221 and calculates the moving direction of the portable device 4 (S33). ).
Next, the control unit 21 determines whether or not the portable device 4 approaches the vehicle 5 based on the calculation result of S33 (S34).

  When the illumination unnecessary command is stored in the storage unit 22 (NO in S31), the portable device 4 is in the vehicle (NO in S32), or the portable device 4 is separated from the vehicle 5 ( NO in S34), hospitality lighting is not required. Therefore, the control unit 21 turns off each exterior light (S35) and ends the illumination execution process. In S35, the control unit 21 turns off the outside light if the outside light is on, and keeps it off if the outside light is not on.

When the portable device 4 approaches the vehicle 5 (YES in S34), the control unit 21 stores the latest location of the portable device 4 stored in the history unit 221 and each stored in the storage unit 22. With reference to the illuminable range of the exterior light, the exterior light that illuminates the location of the portable device 4 is selected (S36).
In the process of S <b> 36, when there is no exterior light that can illuminate the location of the portable device 4, the control unit 21 may return the process to S <b> 32 and illuminate the position closest to the location of the portable device 4. Possible exterior lights may be selected. When there are a plurality of exterior lights that can illuminate the location of the portable device 4, the control unit 21 may select any one of them, or may select all of the plurality of exterior lights.

  After the process of S36 is completed, when the control unit 21 tries to illuminate the presence position of the portable device 4 with the exterior light selected in S36 based on the detection result of the obstacle detection unit 15, the light of the exterior light is transmitted to the vehicle. It is determined whether or not it is obstructed by an obstacle existing around 5 (S37).

Here, light shielding by an obstacle will be described.
FIG. 8 is a schematic diagram illustrating another example of hospitality illumination by the illumination system 1.
FIG. 8 illustrates a case where an obstacle A exists between the vehicle 5 and the position where the portable device 4 is present. When the obstacle A does not exist, the location of the portable device 4 can be illuminated by an exterior light (for example, the movable light 13 on the driver's seat side) (see a two-dot chain line in FIG. 8).

However, when the exterior light selected in S36 is blocked by the obstacle A (YES in S37), there is no point in trying to illuminate the location where the portable device 4 is present.
Therefore, the control unit 21 in the present embodiment controls the operation of the exterior light so that the predetermined exterior light illuminates a predetermined position (S38). Specifically, the control unit 21 controls the operation of the driver's seat side movable lamp 13 so that the driver's seat side movable lamp 13 illuminates the ground near the driver's seat side door (see FIG. 8).

The light that illuminates the ground near the door on the driver's seat side is diffusely reflected on the ground and can be visually recognized by the driver. In this case, the driver can easily recognize the position of the door on the driver's seat side.
In the case of YES in S37, the control unit 21 may end the illumination execution process.

If the vehicle exterior light is not shielded (NO in S37), as shown in FIG. 7, the control unit 21 determines whether or not the vehicle exterior light other than the vehicle exterior light selected in S36 is already lit (S51). If so (YES in S51), the vehicle exterior lights other than the vehicle exterior light selected in S36 are turned off (S52).
After the process of S52 is completed, or when an exterior light other than the exterior light selected in S36 is not lit (NO in S51), the control unit 21 determines whether the exterior light selected in S36 is the movable light 13 or not. Is determined (S53).

  When the exterior light selected in S36 is other than the movable light 13 (NO in S53), the control unit 21 controls the lighting of the exterior light selected in S36 (S54). That is, the control unit 21 turns on if the exterior light is not lit, and continues lighting if it is already lit. At this time, the headlamp 11 is preferably illuminated by a low beam.

  When the exterior lamp selected in S36 is the movable lamp 13 (YES in S53), the control unit 21 turns on the movable lamp 13 and the illumination direction so that the movable lamp 13 selected in S36 illuminates the position where the portable device 4 is present. Is controlled (S55). That is, the control unit 21 turns on the movable lamp 13 if it is not lit, and continues lighting if it is already lit. Further, the control unit 21 adjusts the illumination direction of the movable lamp 13.

  After the process of S38 shown in FIG. 6, or S54 or S55 shown in FIG. 7, the control unit 21 returns the process to S32 (see FIG. 6). Thereafter, when the driver gets on or when the driver turns back or passes, it is determined YES in S32 or S34, and the lit exterior light is turned off by the process of S35.

  Based on the detection result of the open / close detection unit 14, the control unit 21 executing the illumination execution process assumes that the driver has boarded when the driver's seat side door is opened and closed, and turns on the exterior light. The light is turned off and the illumination execution process is forcibly terminated. Thereafter, it is not necessary to execute the illumination execution process until the driver gets off.

  By the way, when the interior lamp is turned on when the door of the driver's seat is opened, the interior lamp illuminates the vicinity of the door. Therefore, the control unit 21 that is executing the illumination execution process may turn off the exterior lamp as the interior lamp is turned on and forcibly end the illumination execution process. Thereafter, it is not necessary to execute the illumination execution process until the driver gets off.

The control unit 21 that executes the processing of S12 or S33 functions as a calculation unit in the embodiment of the present invention.
The control part 21 which performs the process of S31, S32, or S37 functions as an illumination determination part in the embodiment of the present invention.
The control unit 21 that executes the process of S34 functions as a contact / separation determination unit in the embodiment of the present invention.
The control part 21 which performs the process of S35 or S52 functions as an illumination control part in the embodiment of the present invention.
The control unit 21 that executes the process of S36 functions as an illumination control unit (more specifically, a selection unit) in the embodiment of the present invention.
The control part 21 which performs the process of S54 or S55 functions as an illumination control part (especially lighting part) in the embodiment of the present invention.

The lighting system 1 as described above can realize hospitality lighting as shown in FIGS. 2 to 4 in this order, for example. Specifically, as shown in FIG. 2, the driver's feet approaching from the front of the vehicle 5 are illuminated by the headlamps 11, and then the driving reaches the side of the vehicle 5 as shown in FIG. 3. The driver's feet are illuminated by the movable lamp 13, and the driver's feet approaching the vicinity of the door of the vehicle 5 are illuminated by the movable lamp 13 as shown in FIG. 4.
When the driver approaches from the rear of the vehicle 5, the illumination system 1 illuminates the driver's feet with the reverse lamp 12, and then uses the movable lamp 13 to indicate the driver's feet that have reached the side of the vehicle 5. Further, as shown in FIG. 4, the driver's feet approaching the vicinity of the door of the vehicle 5 are illuminated with the movable lamp 13.
That is, the exterior light can illuminate the driver's feet reliably following the movement of the driver. Therefore, the safety at the time of boarding can be improved.

(Embodiment 2)
FIG. 9 is a schematic diagram illustrating an example of hospitality illumination by the illumination system 1 according to Embodiment 2 of the present invention.
The illumination system 1 according to the present embodiment has substantially the same configuration as the illumination system 1 according to the first embodiment. Hereinafter, differences from the first embodiment will be described, and other parts corresponding to the first embodiment will be denoted by the same reference numerals, and description thereof will be omitted.

FIG. 9 shows a case where the driver's feet on the side of the vehicle 5 and the front of the driver in the traveling direction are illuminated by the movable lamp 13.
When executing the process of S55, the control unit 21 appropriately adjusts the direction of the movable lamp 13 to illuminate not only the feet of the driver but also the front of the driver in the traveling direction.
The illumination system 1 as described above has improved safety compared to the first embodiment. This is because the driver can clearly see not only the state of the ground at the foot, but also the state of the ground ahead in the traveling direction.

Although the illumination system 1 of Embodiment 1 and 2 implement | achieves hospitality illumination (namely, step illumination which follows the approach to the vehicle 5 of the driver who gets on), it is not limited to this, From the vehicle 5 of the driver who got off You may implement | achieve the step lighting which follows the separation of.
Although the illumination system 1 of Embodiment 1 and 2 uses the vehicle-mounted illumination light as an exterior light, it is not limited to this, The illumination system 1 (for example, an entrance lamp) which is not vehicle-mounted is also used as an exterior light. Good.
Although the illumination system 1 of Embodiment 1 and 2 is provided with only one portable device 4, it is not limited to this and may be provided with two or more. In this case, for example, if the driver and the passenger carry the portable device 4 one by one, hospitality lighting is executed for the driver and the passenger.

  The lighting system 1 is not limited to a configuration in which the driver registers a lighting required command or a lighting unnecessary command in the ECU 2 in advance. For example, hospitality lighting is executed in principle, but when a driver approaching the vehicle 5 inputs a lighting unnecessary command using the input unit of the portable device 4, the hospitality lighting may be exceptionally stopped. .

1 Lighting system 11 Headlamp (illuminating lamp)
12 Backlight (illumination light)
13 Movable light (illumination light)
DESCRIPTION OF SYMBOLS 131 Light source main body 132 Main body drive part 14 Opening / closing detection part 15 Obstacle detection part 16 Input part 2 ECU (vehicle equipment)
21 Control unit (calculation unit, illumination control unit, selection unit, lighting unit, contact / separation determination unit, illumination determination unit)
22 storage unit 221 history unit 23 receiving unit (in-vehicle communication unit)
24 Transmitter (in-vehicle communication unit)
31 receiving antenna 32 transmitting antenna 4 portable device 5 vehicle A obstacle

Claims (8)

A lighting system for illuminating the outside of the vehicle,
An in-vehicle communication unit;
A portable device that communicates wirelessly with the in-vehicle communication unit and is portable outside the vehicle;
Based on a communication result between the in-vehicle communication unit and the portable device, a calculation unit that calculates the location of the portable device;
An illumination system comprising: an illumination control unit that controls an operation of the illumination lamp so that an illumination lamp that illuminates the outside of the vehicle illuminates the presence position based on a computation result of the computation unit. The illumination lamp can change the illumination direction,
The illumination system according to claim 1, wherein the illumination control unit controls an illumination direction of the illumination lamp based on a calculation result of the calculation unit. There are a plurality of the lamps, and the illuminable ranges are different.
The illumination control unit
A selection unit that selects at least one of the plurality of illumination lamps based on the calculation result of the calculation unit;
The lighting system according to claim 1, further comprising: a lighting unit that lights the illumination lamp selected by the selection unit. The calculation unit further calculates a moving direction of the portable device,
A contact / separation determination unit that determines contact / separation of the portable device with respect to a vehicle based on a calculation result of the calculation unit,
When the said contact / separation determination part determines that the said portable device approaches, the said illumination control part controls operation | movement of the said illumination light so that the said existing position may be illuminated. The lighting system according to any one of the above. The calculation unit further calculates a moving direction of the portable device,
The said illumination control part controls the operation | movement of the said illuminating lamp so that the moving direction front of the said portable device may be illuminated rather than the said existing position and this existing position. Lighting system. An illumination determination unit for determining whether to illuminate the presence position;
When the illumination determination unit determines NO, the illumination control unit does not perform illumination with the illumination lamp, or controls the operation of the illumination lamp so that the illumination lamp illuminates a predetermined position. The lighting system according to claim 5.   The illumination system according to any one of claims 1 to 6, further comprising an in-vehicle device having the in-vehicle communication unit, a calculation unit, and an illumination control unit. An in-vehicle device for illuminating the outside of the vehicle,
An in-vehicle communication unit;
Based on a communication result with an external portable device that wirelessly communicates with the in-vehicle communication unit, a calculation unit that calculates the presence position of the portable device;
An in-vehicle device comprising: an illumination control unit that controls an operation of the illumination lamp so that an external illumination lamp that illuminates the outside of the vehicle illuminates the presence position based on a computation result of the computation unit.

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