JP7518388B2 - Vehicle interior lighting system - Google Patents

Description

The present invention relates to an interior vehicle lighting system.

Conventionally, lighting systems are known that can change the color of illumination light depending on the deviation between the actual temperature inside the vehicle cabin and a target temperature set by the vehicle occupant (see, for example, Patent Document 1). In the lighting system described in Patent Document 1, for example, when it is confirmed that the air conditioner or heater is in heating operation or that the temperature inside the vehicle cabin detected by the temperature sensor has fallen below the target temperature, a color that is perceived as warm is set as the color of the illumination light.

Special Publication No. 2003-525799

However, in the lighting system described in Patent Document 1, the color of the illumination light is changed depending on the deviation between the actual temperature inside the vehicle cabin and the set target temperature, so there is room for further improvement in the relationship between temperature adjustment and lighting according to the individual conditions of multiple occupants.

The vehicle interior lighting system according to the present invention includes a plurality of lighting units provided corresponding to each of a plurality of seats in the vehicle interior, and a lighting control unit that individually controls the lighting color of the lighting units corresponding to each seat based on the temperature information of the occupants seated in each of the plurality of seats.

According to the present invention, lighting control can be performed individually for each occupant who has a different perception of room temperature, so appropriate lighting can be provided for each of multiple occupants.

FIG. 1 is a perspective view showing a schematic configuration of a vehicle interior. FIG. 2 is a diagram showing a first lighting mode of the lighting unit provided on the door trim. FIG. 3 is a diagram showing a second lighting mode of the lighting unit provided on the door trim. FIG. 4 is a diagram showing a first illumination mode of the illumination unit provided on the pillar. FIG. 5 is a block diagram showing a schematic configuration of the vehicle interior lighting system according to the first embodiment. FIG. 6 is a flowchart showing an example of lighting control in the first embodiment. FIG. 7 is a block diagram showing a schematic configuration of a vehicle interior lighting system when a body temperature sensor is used in the second embodiment. FIG. 8 is a block diagram showing a schematic configuration of a vehicle interior lighting system when an odor sensor is used in the second embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
--First embodiment--
1 is a diagram for explaining an embodiment of the vehicle interior lighting system of the present invention, and is a perspective view showing a schematic configuration of a vehicle interior 1. A total of four seats 2a to 2d are provided in the vehicle interior 1, including front seats 2a and 2b and rear seats 2c and 2d. Each of the seats 2a to 2d has a seat cushion 20 that supports the buttocks of the occupant, a seat back 21 that supports the waist and back of the occupant, and a headrest 22 that supports the head of the occupant.

The seat cushion 20 is provided with a seat heater 30. For example, the seat heater 30 is made of a nonwoven fabric sheet with an electric heating wire embedded in it. The seat heater 30 is turned on and off and the temperature is set by operating an operation unit 31 provided on the door trim. The operation unit 31 of the seat heater 30 for each seat 2a to 2d is provided on the door trim of the door 4a to 4d that corresponds to the seat 2a to 2d.

The door trim of the door 4a provided for the seat 2a is provided with an illumination unit 5a. The door trim of the door 4c provided for the seat 2c is provided with an illumination unit 5c. Although not shown in the figure, the door trims of the doors 4b and 4d provided for the seats 2b and 2d are also provided with illumination units 5b and 5c similar to the illumination units 5a and 5c.

In the example shown in FIG. 1, lighting units 5a to 5d are provided on the door trim of each door 4a to 4d, but this is not limiting and it is preferable that they are placed in a position that is visible to the occupants seated in each seat 2a to 2d. For example, in the case of lighting unit 5c corresponding to seat 2c, it may be provided on pillar 6, the lower area of the door trim near the feet, the back of seat 2a, etc.

Air-conditioning air outlets 8a, 8b (outlet 8b not shown) are provided on both sides of the instrument panel 7, and a defroster outlet 8e is provided in the center. An illumination unit 10a is provided on the trim of the pillar 9 provided near the outlet 8a on the left side. Although not shown, an illumination unit 10b (not shown) is also provided on the pillar trim provided near the outlet 8b (not shown) on the right side of the instrument panel 7. In addition, outlets 8c, 8d that blow air-conditioning air in the direction of the seats 2c, 2d are provided on the left and right pillars 6. However, in FIG. 1, the right pillar 6 and outlet 8d are not shown. The illumination units 5a to 5d, 10a, and 10b are equipped with, for example, LEDs that emit red light, LEDs that emit green light, and LEDs that emit blue light, and are configured to be illuminated in various colors.

Figures 2 and 3 show the illumination forms of the illumination units 5a to 5d, with Figure 2 showing the first illumination form and Figure 3 showing the second illumination form. Note that Figures 2 and 3 show the illumination unit 5c as an example, but the illumination units 5a, 5b, and 5d have the same configuration. In Figure 2, the upper side shows the illumination form when the illumination is off, and the lower side shows the form when the illumination is on (i.e., the first illumination form). The illumination unit 5c has multiple light-emitting units 51 to 56. Each of the light-emitting units 51 to 56 has a red LED, a green LED, and a blue LED, and can emit light in various colors. When the illumination is off, all the light-emitting units 51 to 56 are turned off, and when the illumination is on, all the light-emitting units 51 to 56 emit light. In Figure 2, the light-emitting units 51 to 56 that are emitting light are hatched. In other words, the hatching indicates that they are emitting light, and the same applies to the second illumination form shown in Figure 3.

In the second lighting mode shown in FIG. 3, the light is emitted in a manner that the light-emitting area flows from the front to the rear of the vehicle interior. FIG. 3 shows the lighting mode when the light is on, and six light-emitting patterns are repeated at a predetermined time interval Δt. In the following, the patterns will be referred to as the first light-emitting pattern, the second light-emitting pattern, the third light-emitting pattern, the fourth light-emitting pattern, the fifth light-emitting pattern, and the sixth light-emitting pattern, from the top of FIG. 3.

In the first light emission pattern, only light emitting unit 51 emits light, in the second light emission pattern, only light emitting unit 52 emits light, in the third light emission pattern, only light emitting unit 53 emits light, in the fourth light emission pattern, only light emitting unit 54 emits light, in the fifth light emission pattern, only light emitting unit 55 emits light, and in the sixth light emission pattern, only light emitting unit 56 emits light. By repeating these first to sixth light emission patterns in order at a time interval Δt, a visual effect is obtained in which the light emitting area of illumination unit 5c appears to flow from front to rear.

In the second lighting mode, the light-emitting area is controlled to flow from the front to the rear, thereby making it possible to visualize the flow of the conditioned air blown out from the air outlet 8c. In addition, by setting the time interval Δt of the conditioned air to be small when the air volume is large and large when the air volume is small, the air volume can be visualized by the speed of the flow in the lighting area. Furthermore, by setting the illumination light to a cool color (e.g. blue) during cooling and a warm color (e.g. red) during heating, the cooling setting and heating setting can be visualized. Examples of warm colors include red, orange, and yellow, while examples of cool colors include navy blue, blue, and light blue.

Figure 4 is a diagram showing the lighting form of lighting unit 10a. The lighting form of lighting unit 10b (not shown) is also similar to the form shown in Figure 4. Lighting unit 10a also has a first lighting form as shown in Figure 2 and a second lighting form as shown in Figure 3. As shown in Figure 4, lighting unit 10b has multiple light-emitting units 101-106 arranged in the extension direction of pillar 9, i.e., in the up and down arrow directions. The temperature-controlled air blown out from outlet 8e is blown in an upward direction substantially along pillar 9.

Figure 4 shows the first lighting form similar to that of Figure 2, in which all the light-emitting units 101 to 106 are turned off when the lighting is off, and all the light-emitting units 101 to 106 are turned on when the lighting is on (i.e., the first lighting form). The second lighting form is not shown, but in the first lighting pattern, only the light-emitting unit 101 emits light, in the second lighting pattern, only the light-emitting unit 102 emits light, in the third lighting pattern, only the light-emitting unit 103 emits light, in the fourth lighting pattern, only the light-emitting unit 104 emits light, in the fifth lighting pattern, only the light-emitting unit 105 emits light, and in the sixth lighting pattern, only the light-emitting unit 106 emits light. As in the case of Figure 3, by repeating the first to sixth lighting patterns in order at a time interval Δt, a visual effect is obtained in which the lighting area of the lighting unit 10a appears to flow from the bottom to the top (i.e., in the direction of the flow of the temperature-controlled air).

(Lighting control explanation)
Next, the lighting control related to the lighting units 5a to 5d, 10a and 10b will be described. Fig. 5 is a block diagram showing a schematic configuration of a vehicle interior lighting system 200. The vehicle interior lighting system 200 includes the lighting units 5a to 5d, 10a and 10b, and a lighting control device 201 that controls the lighting by the lighting units 5a to 5d, 10a and 10b. The lighting control device 201 includes a CPU (Central Processing Unit) that performs various arithmetic processing, as well as memories such as a ROM that stores a control program and a RAM that temporarily stores data such as the detection signals.

Air conditioning information such as the air conditioning set temperature T1, the indoor temperature Tr measured by the indoor temperature sensor 230, and air volume is input to the lighting control device 201 from the air conditioning control device 210. The lighting control device 201 also receives temperature control set temperatures T2a to T2d from the seat temperature control device 220. The seat temperature control device 220 includes the operation unit 31 shown in FIG. 1, and controls the temperature of the seat heater 30 by controlling the current supplied to the seat heater 30 of each seat 2a to 2d based on the temperature control set temperatures T2a to T2d from each operation unit 31.

Figure 6 is a flowchart showing an example of lighting control in the first embodiment. As shown in Figure 1, the vehicle is provided with five seats 2a to 2d, and the lighting control shown in Figure 6 is executed independently for each of the lighting units 5a to 5d provided corresponding to each of the seats 2a to 2d. Here, the lighting unit 5c provided corresponding to seat 2c will be explained as an example. This lighting control is executed by the lighting control device 201, and the lighting control process starts when the vehicle power is turned on.

In step S10 in FIG. 6, it is determined whether or not the air conditioning control by the air conditioning control device 210 is on. If it is determined to be on (yes) in step S10, the process proceeds to step S20, where the air conditioning flag F is set to ON. On the other hand, if it is determined to be off (no) in step S10, the process proceeds to step S12, where the air conditioning flag F is set to OFF. In step S30, it is determined whether or not the seat temperature control for the seat 2c is on, that is, whether or not the occupant seated in the seat 2c has turned on the seat temperature control using the operation unit 31. If it is determined to be off in step S30, the process proceeds to step S70, where the illumination by the illumination unit 5c is turned off, and the process proceeds to step S80. In other words, if the seat temperature control is off regardless of whether the air conditioning control is on or off, the illumination by the illumination unit 5c is turned off.

On the other hand, if it is determined in step S30 that the seat temperature control is on (yes), the process proceeds to step S40 to determine whether the air conditioning flag F is on or not. If it is determined in step S40 that F=OFF, that is, if the air conditioning control is off and the seat temperature control is on, the process proceeds to step S72. In step S72, the lighting by the lighting unit 5c is controlled to a warm color (e.g., red) and in the first lighting mode (lighting on) of FIG. 2.

If it is determined in step S40 that F=ON and the process proceeds to step S50, it is determined in step S50 whether or not |T1-T2c|≧ΔTth. |T1-T2c| on the left side is the magnitude of the difference between the air conditioning set temperature T1 and the temperature control set temperature T2c, and ΔTth on the right side is a threshold value for determining whether or not this difference in set temperatures is a temperature difference that cannot be sensed by the occupant. In other words, if |T1-T2c|<ΔTth, it is determined that the temperature difference is not sensed. If it is determined in step S50 that |T1-T2c|<ΔTth, the process proceeds to step S70 and the illumination unit 5c is turned off.

On the other hand, if it is determined in step S50 that |T1-T2c|≧ΔTth, the process proceeds to step S60 to determine whether the air conditioning set temperature T1 is greater than the temperature control set temperature T2c. If it is determined in step S60 that the air conditioning set temperature T1 is greater than the temperature control set temperature T2c (T1>T2c), the process proceeds to step S70 to turn off the lighting unit 5c. Conversely, if it is determined in step S60 that T1>T2c is not true, that is, that T1<T2c is true, the process proceeds to step S72 to control the lighting by the lighting unit 5c to a warm color (e.g., red) and in the first lighting mode (lighting on) of FIG. 2.

In step S80, it is determined whether the vehicle power supply is turned off. If it is determined that the vehicle power supply is turned on, the process returns to step S10. If it is determined that the vehicle power supply is turned off, the lighting control sequence ends.

The effects of the lighting control in FIG. 6 described above can be summarized as follows.
(a) When both the air conditioning control and the seat temperature control are in the OFF state, the illumination unit 5c is turned off.
(b) Even if the air conditioning control and the seat temperature control are on, if the air conditioning set temperature T1 and the temperature control set temperature T2a satisfy the condition "|T1-T2c|<ΔTth", the illumination unit 5c is turned off.
(c) Even if the air conditioning control and the seat temperature control are on, if the air conditioning set temperature T1 and the temperature control set temperature T2c satisfy the condition "T1>T2c", the illumination unit 5c is turned off.
In any of the above cases (a) to (c), the lighting control device 201 determines that "the occupant sitting in seat 2c is not feeling cold, and there is no need for the lighting unit 5c to commit to the occupant's thermal sensation," and turns off the lighting unit 5c.

(d) When the seat temperature control is on and the air conditioning control is off, the illumination is a warm color (for example, red) and in the first illumination mode (illumination on) of FIG. 2 .
(e) When the air conditioning control and the seat temperature control are on and the air conditioning set temperature T1 and the temperature control set temperature T2c satisfy the condition "T1 <T2c", the illumination is a warm color (e.g., red) and in the first illumination mode (illumination on) of Figure 2.
In either case (d) or (e) above, the lighting control device 201 determines that "the occupant sitting in seat 2c is feeling cold," and illuminates the lighting unit 5c with a warm color so that the lighting color makes the occupant feel visually warm.

However, the way in which each occupant feels warm and cold is unique to each occupant, and even if the air conditioning set temperature T1 is the same, the way each occupant feels warm and cold varies depending on the seat arrangement in the vehicle cabin. The vehicle interior lighting system 200 of the first embodiment described above includes a plurality of lighting units 5a to 5d provided corresponding to each of a plurality of seats 2a to 2d in the vehicle cabin, and a lighting control device 201 that individually controls the lighting color of the lighting units 5a to 5d corresponding to each seat 2a to 2d based on the temperature difference between the air conditioning set temperature, which is the temperature sensation information of the occupant seated in each of the plurality of seats 2a to 2d, and the temperature control set temperature of the seat.

In other words, the lighting provided by the lighting units 5a to 5d can be appropriately controlled according to the temperature sensation felt by each occupant. As a result, the discomfort felt by the occupants due to the air conditioning temperature setting can be alleviated by the visual effect of the lighting.

(Variation 1)
In the lighting control shown in Fig. 6, the lighting unit 5c is controlled in the first lighting mode (lighting on) shown in Fig. 2, but the second lighting mode in which the lighting area flows in the wind direction as shown in Fig. 3 may be adopted. However, the second lighting mode is adopted only when the air-conditioned air is blown out from the air outlet. For example, when the process proceeds from step S40 to step S72 in Fig. 6, warm color lighting is performed in the first lighting mode. Note that the indoor temperature Tr measured by the indoor temperature sensor may be used instead of the air-conditioning set temperature T1.

Furthermore, the color tone of the lighting may be changed according to the magnitude of the difference between the air conditioning set temperature T1 and the room temperature Tr. For example, the lighting color or color intensity may be changed from red to orange to yellow in descending order of temperature difference. By performing lighting control in this manner, the difference between the air conditioning set temperature T1 and the room temperature Tr can be easily visually recognized.

(Variation 2)
Regarding the illumination colors of the illumination units 5a to 5d, during cooling, the illumination colors of the illumination units are set to cool colors, and the illumination colors of the illumination units corresponding to the seats in which the occupant who is determined to be feeling cold is seated are set to warm colors. For example, when the occupant seated in the seat 2a is feeling cold, the illumination color of the illumination unit 5a is set to warm colors, and the illumination colors of the other illumination units 5b to 5d are set to cool colors.

(Variation 3)
The third modification relates to the lighting units 10a and 10b provided on the pillar 9. In the lighting control shown in FIG. 6, the lighting color of the lighting units 5a to 5d is used to reduce the cold feeling of the occupants. In the third modification, the lighting units 10a and 10b are used to notify the occupants that they are feeling cold. For example, if the lighting colors of the lighting units 5a to 5d are set to warm colors in step S72 of FIG. 6, that is, if it is determined that the occupants are feeling cold, the lighting units 10a and 10b provided on the pillar 6 are set to the lighting-on state shown in FIG. 4. Alternatively, the lighting may be turned on and off alternately. By performing the lighting control as described above using the lighting units 10a and 10b, a notification can be made to encourage a change in the air conditioning temperature setting.

The state in which conditioned air is being blown out from the defroster outlet 8e may be visualized using the lighting units 10a and 10b. That is, when the defroster is activated, the lighting units 10a and 10b are controlled in the second lighting mode, and the lighting areas of the lighting units 10a and 10b are illuminated in a flowing manner from bottom to top. In this case, if the lighting colors of the lighting units 5a to 5d are set to warm colors in step S72 of FIG. 6, the lighting control of the lighting units 10a and 10b is changed to a mode in which the lighting is alternately turned on and off.

As with the lighting units 5a to 5d, the color tone of the illumination light from the lighting units 10a and 10b may be changed according to the temperature difference between the air conditioning set temperature and the room temperature. Also, the flow speed of the illumination area may be changed according to the volume of the air conditioning air.

--Second embodiment--
In the second embodiment, a case will be described in which biological information of the occupant himself is used as the temperature sensing information of the occupant. The biological information includes the body temperature, biological gas, facial expression, etc. of the occupant. The case in which the body temperature is used and the case in which the biological gas is used will be described below.

(When body temperature is used as vital information)
Fig. 7 is a block diagram showing a schematic configuration of a vehicle interior lighting system 200 when body temperature is used. In the block diagram shown in Fig. 7, a body temperature sensor 240 for measuring the body temperature of an occupant is provided instead of the seat temperature adjustment control device 220 in the block diagram shown in Fig. 5. The configuration other than the body temperature sensor 240 is the same as the configuration in the block diagram of Fig. 5. The body temperature sensor 240 is, for example, an infrared thermometer, and is provided in correspondence with each of the seats 2a to 2d.

For example, a body temperature sensor 240 is provided on the seat back 21 or the rear side of the headrest 22 of each of the seats 2a and 2b, and the body temperatures (e.g., face temperatures) of the occupants seated in the rear seats 2c and 2d facing the body temperature sensor 240 are individually measured. In addition, body temperature sensors 240 are provided on the instrument panel 7 at positions facing each of the seats 2a and 2b, and the body temperatures of the occupants seated in the seats 2a and 2b are measured by each body temperature sensor 240.

The body temperature Tc measured by each body temperature sensor 240 is input to the lighting control device 201. The lighting control device 201 changes the lighting color of the lighting units 5a to 5d according to the temperature difference between the air conditioning set temperature T1 and the body temperature Tc. For example, if T1>Tc, it is determined that the occupant feels cold, and the lighting color is controlled to a warm color. Conversely, if T1<Tc, it is determined that the occupant feels hot, and the lighting color is controlled to a cool color. Furthermore, if the air conditioning set temperature T1 and the body temperature Tc are approximately the same, it is determined that the occupant does not feel cold or hot, and the lighting units 5a to 5d are turned off.

In the vehicle interior lighting system 200 of the second embodiment described above, the temperature difference between the air conditioning set temperature T1 of the vehicle interior air conditioner and the body temperature Tc of the occupant seated in the seat 2a to 2d is used as the occupant's temperature sensation information. By using the occupant's body temperature Tc as the temperature to be compared with the air conditioning set temperature T1, the occupant's temperature sensation information can be determined more accurately.

(When biological gas is used as biological information)
8, an odor sensor 250 may be provided instead of the body temperature sensor 240, and the odor sensor may detect the biological gas of the occupant as biological information of the occupant seated in the seat. The odor sensor 250 is provided in each of the seats 2a to 2d, for example, in the headrest 22 or the seat back 21, and the odor sensor 250 detects the biological gas of each of the seated occupants individually.

There are two types of sweating: thermal sweating and psychogenic sweating. Thermal sweating occurs when body temperature rises when it is hot or when exercising (for example, an internal temperature rise of about 0.25 to 0.5°C), and is caused by the eccrine sweat glands. Psychogenic sweating occurs when you are nervous in front of people or are surprised, or when you are mentally stimulated, and is caused by the eccrine and apocrine sweat glands.

The odor sensor 250 includes a sensor 250a that detects gas components released from the secretions of the apocrine sweat glands, and a sensor 250b that detects gas components released from the secretions of the eccrine sweat glands. When the sensor 250a detects gas components caused by sweating of the apocrine sweat glands, a detection signal Sa is input to the lighting control device 201. When the sensor 250b detects gas components caused by sweating of the eccrine sweat glands, a detection signal Sb is input to the lighting control device 201.

When only the detection signal Sb is input, the lighting control device 201 determines that the sweating is psychological, and controls the lighting color of the lighting units 5a to 5d to a color tone that relieves the occupant's sense of tension and makes the occupant feel calm. When both detection signals Sa and Sb are input, the lighting control device 201 determines that the sweating is thermal, and controls the lighting color of the lighting units 5a to 5d to a cool color. Alternatively, the lighting color of the lighting units 5a to 5d may be controlled to a cool color, and lighting control may be performed using the lighting units 10a and 10b to encourage the air conditioning temperature setting to be lowered, as in the case of the third modification. In this case, the lighting color may be a cool color to indicate that the temperature setting is lowered, or a warm color to indicate that the temperature setting is too high.

In the example shown in FIG. 8, the odor sensor 250 detects the occupant's biogas as temperature sensing information for the occupant sitting in the seats 2a to 2d, and the occupant's sensation of the temperature inside the vehicle cabin is determined from changes in the components of the biogas. Therefore, lighting control can be performed appropriately not only in response to heat but also to the occupant's sense of tension.

The above-mentioned embodiments and variations may be applied individually or in combination. For example, by combining the first embodiment with the example shown in FIG. 8, lighting control can be performed for both hot and cold sensations. If the occupant feels hot, the lighting colors of the lighting units 5a to 5d are set to warm colors, and if the occupant feels cold, the lighting colors are set to cool colors.

When using the facial expression of the occupant as biometric information, a digital camera is provided instead of the body temperature sensor 240 in FIG. 7. Then, based on the facial expression of the occupant captured by the digital camera, it is determined whether the occupant is feeling cold or hot.

Although various embodiments and modifications have been described above, the present invention is not limited to these. Other embodiments that are conceivable within the scope of the technical concept of the present invention are also included within the scope of the present invention.

1...vehicle interior, 2a-2d...seats, 4a-4d...doors, 5a-5d, 10a, 10b...lighting units, 6, 9...pillars, 7...instrument panel, 8a-8e...air outlets, 20...seat cushions, 21...seat backs, 22...headrests, 30...seat heaters, 200...vehicle interior lighting system, 201...lighting control device, 210...air conditioning control device, 220...seat temperature control device, 230...interior temperature sensor, 240...body temperature sensor, 250...odor sensor

Claims (7)

A plurality of lighting units provided corresponding to a plurality of seats in the vehicle interior,
and a lighting control unit that individually controls the lighting color of the lighting unit corresponding to each seat based on temperature sensing information of an occupant seated in each of the plurality of seats. 2. The vehicle interior lighting system according to claim 1,
The vehicle interior lighting system according to the present invention, wherein the temperature sensed information is a temperature difference between the vehicle interior temperature or an air conditioning temperature setting of a vehicle interior air conditioning device and a temperature control temperature setting of a seat temperature control device that heats the seat. 2. The vehicle interior lighting system according to claim 1,
The temperature sensing information is the temperature inside the vehicle interior or the air conditioning setting temperature of an air conditioning device in the vehicle interior, and biological information of an occupant. 4. The vehicle interior lighting system according to claim 3,
the biological information is a body temperature of an occupant sitting in the seat,
The vehicle interior lighting system is characterized in that the lighting control unit individually controls the lighting color of the lighting unit based on a temperature difference between the vehicle interior temperature or an air conditioning setting temperature of a vehicle interior air conditioning system and the body temperature. 4. The vehicle interior lighting system according to claim 3,
The vehicle interior lighting system according to the present invention, characterized in that the biological information is biological gas of an occupant seated in the seat, detected by an odor sensor. The vehicle interior lighting system according to any one of claims 1 to 5,
The lighting units are arranged near air conditioning air outlets provided corresponding to the corresponding seats,
The vehicle interior lighting system is characterized in that the lighting control unit changes the color tone of the lighting color in accordance with a temperature difference between an air conditioning setting temperature and a vehicle interior temperature. 7. The vehicle interior lighting system according to claim 1,
The lighting units are arranged near air conditioning air outlets provided corresponding to the corresponding seats,
The vehicle interior lighting system is characterized in that the lighting control unit controls the lighting unit to have a lighting form that represents a wind direction and/or a wind volume of the conditioned air blown out from the air conditioning air outlet.

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