Vehicle illumination system

Abstract

To control light of a light color and illuminance emitted by a luminaire using electric wires, the number of which is small.SOLUTION: A vehicle illumination system comprises a luminaire provided at a vehicle and a vehicle controller provided at the vehicle. The vehicle controller includes: a first table storage unit that stores a first table in which colors or illuminances differing from each other are associated with a plurality of patterns in pulse width modulation, respectively; and a control unit for transmitting, to the luminaire, a control signal on which pulse width modulation of a pattern corresponding to a color or an illuminance designated by operation is performed. The luminaire includes: a light-emitting unit capable of emitting light of different colors and illuminances; a second table storage unit that stores a second table in which the same colors or illuminances as those in the first table are associated with the plurality of patterns, respectively; and a drive unit for performing updating to the color or the illuminance corresponding to a pattern of the received control signal.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a vehicle lighting system.

Background Art

[0002] An ambient lighting device may be used as a lighting device for the center console, steering wheel, dashboard, and foot space in the vehicle interior of a vehicle. The ambient lighting device includes a red light-emitting diode (red LED), a green light-emitting diode (green LED), and a blue light-emitting diode (blue LED), and can emit light of various colors and illuminances. Such an ambient lighting device can set the atmosphere in the vehicle interior according to the user's preference.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventionally, an ECU (Electronic Control Unit) in a vehicle has transmitted a pulse width control signal (PWM signal) individually to each of a red LED, a green LED, and a blue LED to control the color and illuminance of an ambient lighting device. For this reason, when the ambient lighting device is provided at a position separated from the control device, the vehicle has to be equipped with three electric wires for transmitting the PWM signal from the control device to the ambient lighting device. Further, each of the ECU and the ambient lighting device has to be provided with three contacts (for example, joints) for connecting the three electric wires and three transmission / reception circuits. For this reason, conventionally, when controlling the color and illuminance of the ambient lighting device from an ECU or the like, the cost has been high.

[0005] The present invention has been made in view of the above, and an object thereof is to provide a vehicle lighting system capable of controlling the color and illuminance of light emitted by a lighting device with a small number of electric wires from a vehicle control device.

Means for Solving the Problems

[0006] In order to solve the above-described problems and achieve the object, a vehicle lighting system according to the present invention includes a lighting device provided in a vehicle and a vehicle control device provided in the vehicle. The vehicle control device includes a first table storage unit that stores a first table in which different colors or illuminances are associated with each of a plurality of patterns in pulse width modulation, and receives an operation for designating the color or the illuminance from a user. A control unit that transmits a control signal subjected to pulse width modulation of a pattern corresponding to the color or the illuminance designated by the operation to the lighting device among the plurality of patterns included in the first table. The lighting device includes a light emitting unit capable of emitting light of different colors and illuminances, a second table storage unit that stores a second table in which the same color or illuminance as the first table is associated with each of the plurality of patterns, and receives the control signal. And a drive unit that updates the color or the illuminance of the light emitted from the light emitting unit to the color or the illuminance corresponding to the pattern of the received control signal among the plurality of patterns included in the second table.

Effects of the Invention

[0007] According to the present invention, the color and illuminance of the light emitted by the lighting device can be controlled with a small number of electric wires from the vehicle control device.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described with reference to the drawings.

[0010] FIG. 1 is a diagram showing the configuration of a vehicle lighting system 10 in the vehicle interior of a vehicle.

[0011] The vehicle lighting system 10 includes a lighting device 20, a vehicle control device 22, and a signal line 24.

[0012] The lighting device 20 is provided in the center console, steering wheel, dashboard, foot space, etc. in the vehicle. The lighting device 20 can emit light of different colors and illuminances. The lighting device 20 can provide indirect lighting of various colors or illuminances to the user in the vehicle and can change the atmosphere in the vehicle interior.

[0013] The vehicle control device 22 is provided in the vehicle and includes an ECU or the like. The vehicle control device 22 controls each device in the vehicle. The vehicle control device 22 may be a navigation device. In the present embodiment, the vehicle control device 22 controls the color and illuminance of the light emitted from the lighting device 20.

[0014] The signal line 24 is an electric wire that connects the vehicle control device 22 and the lighting device 20. The signal line 24 propagates a control signal, which is an electrical signal output from the vehicle control device 22, to the lighting device 20.

[0015] The vehicle control device 22 includes a first table storage unit 32, a color information storage unit 34, an illuminance information storage unit 36, and a control unit 38.

[0016] The first table storage unit 32 stores a first table in which different colors or illuminances are associated with respective ones of a plurality of patterns in pulse width modulation. Each of the plurality of patterns in pulse width modulation included in the first table is, for example, a duty ratio in pulse width modulation. Also, the colors included in the first table are colors of light that can be emitted from the lighting device 20. The illuminances included in the first table are illuminances of light that can be emitted from the lighting device 20. The first table is preset, for example, at the time of factory shipment or the like.

[0017] The color information storage unit 34 stores color information indicating a color specified by the user as the light to be emitted from the lighting device 20. The lighting device 20 emits light of the color indicated by the color information stored in the color information storage unit 34 under the control of the vehicle control device 22.

[0018] The illuminance information storage unit 36 stores illuminance information indicating an illuminance specified by the user as the illuminance of the light to be emitted from the lighting device 20. The lighting device 20 emits light of the illuminance indicated by the illuminance information stored in the illuminance information storage unit 36 under the control of the vehicle control device 22.

[0019] The control unit 38 receives an operation for specifying the color or illuminance of the light to be emitted from the lighting device 20 from the user. The control unit 38 receives the color specification and the illuminance specification separately. When the control unit 38 receives an operation for specifying a color, it updates the color information stored in the color information storage unit 34 to the color information indicating the specified color. Also, when the control unit 38 receives an operation for specifying an illuminance, it updates the illuminance information stored in the illuminance information storage unit 36 to the illuminance information indicating the specified illuminance.

[0020] When the control unit 38 receives an operation for specifying a color or illuminance, it refers to the first table and acquires a pattern corresponding to the specified color or illuminance from among a plurality of patterns (for example, a plurality of duty ratios) included in the first table. Then, the control unit 38 transmits a control signal subjected to pulse width modulation of the acquired pattern (for example, duty ratio), that is, a PWM signal, to the lighting device 20 via the signal line 24. Further, the control unit 38 may continuously transmit a control signal subjected to pulse width modulation of a pattern corresponding to the specified color or illuminance a predetermined number of times.

[0021] The lighting device 20 includes a light emitting unit 42, a second table storage unit 44, and a drive unit 46.

[0022] The light emitting unit 42 includes a red LED 52, a green LED 54, and a blue LED 56. The light emitting unit 42 controls the light emission amount of each of the red LED 52, the green LED 54, and the blue LED 56, and can emit light of different colors and illuminances. Each of the red LED 52, the green LED 54, and the blue LED 56 is independently controlled in terms of light emission amount by PWM control by the drive unit 46.

[0023] The second table storage unit 44 stores a second table in which the same color or illuminance as the first table is associated with each of a plurality of patterns in pulse width modulation. Each of the plurality of patterns in pulse width modulation included in the second table is, for example, a duty ratio in pulse width modulation. The second table is preset, for example, at the time of factory shipment.

[0024] The drive unit 46 receives a control signal from the vehicle control device 22 via the signal line 24. When the drive unit 46 receives the control signal, it detects the pattern of pulse width modulation in the control signal. For example, the drive unit 46 detects the duty ratio in the received control signal. Further, when the drive unit 46 receives the control signal, it refers to the second table and specifies a color or illuminance corresponding to the pattern of the received control signal from among a plurality of patterns (for example, a plurality of duty ratios) included in the second table.

[0025] Then, the driving unit 46 updates the color or illuminance of the light emitted from the light emitting unit 42 to the color or illuminance corresponding to the pattern of the received control signal. More specifically, when the driving unit 46 receives a control signal of a pattern corresponding to a color, the driving unit 46 changes the color of the light emitted from the light emitting unit 42 to the color corresponding to the pattern of the received control signal, and does not change the illuminance of the light emitted from the light emitting unit 42. Further, when the driving unit 46 receives a control signal of a pattern corresponding to illuminance, the driving unit 46 changes the illuminance of the light emitted from the light emitting unit 42 to the illuminance corresponding to the pattern of the received control signal, and does not change the color of the light emitted from the light emitting unit 42.

[0026] Then, the driving unit 46 causes the light emitting unit 42 to emit light with the updated color or illuminance. Specifically, the driving unit 46 performs PWM control on each of the red LED 52, the green LED 54, and the blue LED 56 with the magnitude and balance of the light emission amount such that the light emitting unit 42 emits light with the updated color or illuminance.

[0027] Note that when the driving unit 46 does not receive a control signal, the driving unit 46 does not change the color and illuminance of the light emitted from the light emitting unit 42. However, when the driving unit 46 does not receive a control signal for a predetermined period or more, the driving unit 46 may stop the light emission of the light emitting unit 42.

[0028] FIG. 2 is a diagram showing an example of the first table.

[0029] The first table associates the pattern (for example, duty ratio) in pulse width modulation with each type of color and each illuminance of the light emitted from the lighting device 20. For example, in the example of FIG. 2, the first table associates each of the duty ratios of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, and 90% with any one of five types of colors (color (1) to color (5)) and four types of illuminances (illuminance (1) to illuminance (4)) without duplication.

[0030] Note that the duty ratio shown in FIG. 2 is an example. The duty ratio assigned to the first table varies depending on the resolution of the pulse width modulation of the control signal transmitted from the vehicle control device 22 to the lighting device 20. And the second table stores the same information as the first table.

[0031] FIG. 3 is a timing chart showing the timing of the process according to the first example in the vehicle lighting system 10.

[0032] The vehicle lighting system 10 executes the process at the timing shown in FIG. 3 as an example.

[0033] First, at time t1, the light emitting unit 42 emits light with the color of color (5) and the illuminance of illuminance (1).

[0034] Subsequently, at time t2, the control unit 38 receives an operation from the user to change the color of the light emitted from the lighting device 20 to color (1).

[0035] Subsequently, the control unit 38 refers to the first table shown in FIG. 2, for example, and specifies 10% as the pulse width modulation pattern corresponding to the color (1) specified by the operation. Then, at time t3, the control unit 38 transmits a control signal with a duty ratio of 10% to the lighting device 20 via the signal line 24. Note that the control unit 38 may continuously transmit a control signal with a duty ratio of 10% a predetermined number of times, or may continue to transmit until the next operation is received.

[0036] Subsequently, at time t4, the drive unit 46 receives the control signal and detects the duty ratio of the received control signal. In this example, the drive unit 46 detects a duty ratio of 10%. Then, the drive unit 46 refers to the second table and specifies color (1) as the color or illuminance corresponding to a duty ratio of 10%.

[0037] Subsequently, at time t5, the drive unit 46 updates the color of the light emitted from the light emitting unit 42 to color (1). That is, the drive unit 46 changes the light emitted from the light emitting unit 42 from color (5) to color (1) and maintains the illuminance at illuminance (1). As a result, after time t5, the light emitting unit 42 emits light of color (1) and illuminance (1).

[0038] Subsequently, at time t6, the control unit 38 receives an operation from the user to change the illuminance of the light emitted from the lighting device 20 to illuminance (4).

[0039] Subsequently, the control unit 38 refers to the first table shown in FIG. 2, for example, and specifies 90% as the pulse width modulation pattern corresponding to the illuminance (4) specified by the operation. Then, at time t7, the control unit 38 transmits a control signal with a duty ratio of 90% to the lighting device 20 via the signal line 24. Note that the control unit 38 may continuously transmit a control signal with a duty ratio of 90% a predetermined number of times, or may continue to transmit until the next operation is received.

[0040] Subsequently, at time t8, the drive unit 46 receives the control signal and detects the duty ratio of the received control signal. In the case of this example, the drive unit 46 detects a duty ratio of 90%. Then, the drive unit 46 refers to the second table and specifies illuminance (4) as the color or illuminance corresponding to a duty ratio of 90%.

[0041] Subsequently, at time t5, the drive unit 46 updates the illuminance of the light emitted from the light emitting unit 42 to illuminance (4). That is, the drive unit 46 changes the light emitted from the light emitting unit 42 from illuminance (1) to illuminance (4) and maintains the color at color (1). As a result, after time t9, the light emitting unit 42 emits light of color (1) and illuminance (4).

[0042] FIG. 4 is a timing chart showing the timing of the process according to the second example in the vehicle lighting system 10.

[0043] Even when the control unit 38 does not receive an operation for specifying color or illuminance, the control unit 38 may transmit one or more predetermined control signals with pulse width modulation of a pattern corresponding to the color indicated by the color information stored in the color information storage unit 34 among the plurality of patterns included in the first table periodically or for each predetermined event to the lighting device 20. Further, even when the control unit 38 does not receive an operation, the control unit 38 may transmit one or more predetermined control signals with pulse width modulation of a pattern corresponding to the illuminance indicated by the illuminance information stored in the illuminance information storage unit 36 among the plurality of patterns included in the first table periodically or for each predetermined event to the lighting device 20.

[0044] For example, the control unit 38 may alternately repeat the color transmission process and the illuminance transmission process. In the color transmission process, the control unit 38 continuously transmits the control signal of the pattern corresponding to the color information stored in the color information storage unit 34 a predetermined number of times. Further, in the illuminance transmission process, the control unit 38 continuously transmits the control signal of the pattern corresponding to the illuminance information stored in the illuminance information storage unit 36 a predetermined number of times. In this case, the predetermined number of times is one or more times.

[0045] When the pattern of the control signal is updated every predetermined period, that is, when the control signal of the same pattern is repeatedly transmitted during the predetermined period, the drive unit 46 updates the color or illuminance of the light emitted from the light emitting unit 42 every predetermined period.

[0046] For example, in the example shown in FIG. 4, the control unit 38 alternately repeats the color transmission process of continuously transmitting the control signal of the pattern corresponding to the color information four times and the illuminance transmission process of continuously transmitting the control signal of the pattern corresponding to the illuminance information four times.

[0047] When the control unit 38 receives an operation for specifying a color from the user, it starts the process of transmitting a control signal of a pattern corresponding to the specified color from the first color transmission process after the timing when the operation is received. Also, when the control unit 38 receives an operation for specifying illuminance from the user, it starts the process of transmitting a control signal of a pattern corresponding to the specified illuminance from the first illuminance transmission process after the timing when the operation is received.

[0048] For example, in the example shown in FIG. 4, the control unit 38 11 receives an operation to change the color of the light emitted from the lighting device 20 to color (4) at time t. Then, in the cycle of the color transmission process immediately after time t 11 , the control unit 38 continuously transmits a control signal with a duty ratio of 40%, which corresponds to color (4), four times. And thereafter, the control unit 38 continuously transmits a control signal of 40% four times for each cycle of the color transmission process.

[0049] Such a control unit 38 can transmit a control signal that is robust against errors to the lighting device 20.

[0050] Also, the drive unit 46 determines whether the same pattern of control signal has been detected a predetermined number of times in succession from the vehicle control device 22. For example, in the example shown in FIG. 4, the vehicle control device 22 continuously transmits the same pattern of control signal corresponding to the color information four times in the color transmission process, and continuously transmits the same pattern of control signal corresponding to the illuminance information four times in the illuminance transmission process. In such a case, the drive unit 46 determines whether the same pattern of control signal has been detected, for example, two times in succession. And when it is determined that the same pattern of control signal has been detected two times in succession, the drive unit 46 updates the color or illuminance of the light emitted from the light emitting unit 42 according to the detected pattern.

[0051] Thereby, the drive unit 46 can reduce the determination error due to noise or the like and can surely update the color and illuminance of the light emitted from the light emitting unit 42.

[0052] Furthermore, the drive unit 46 may determine whether or not the same pattern of control signals has been continuously detected a predetermined number of times, excluding the first control signal in the period in which the same pattern of control signals is continuously transmitted. For example, in the example of FIG. 4, the drive unit 46 acquires three control signals out of the four control signals transmitted in one color transmission process or illuminance transmission process, excluding the first one, and determines whether or not the same pattern of control signals is included in the three acquired control signals two times in a row.

[0053] Thereby, the drive unit 46 can detect the pattern of the control signals, excluding the control signal immediately after the pattern has changed, so that the determination error can be reduced and the color and illuminance of the light emitted from the light emitting unit 42 can be surely updated more reliably.

[0054] Also, the drive unit 46 may determine whether or not a predetermined number of control signals of the same pattern are included within the period in which the same pattern of control signals is continuously transmitted. For example, in the example shown in FIG. 4, the vehicle control device 22 transmits the same pattern of control signals corresponding to the color information four times in a row in the color transmission process, and transmits the same pattern of control signals corresponding to the illuminance information four times in a row in the illuminance transmission process. In such a case, the drive unit 46 determines whether or not, for example, a predetermined number of three or more control signals of the same pattern are included in the four control signals transmitted in one color transmission process or illuminance transmission process. When it is determined that three or more control signals of the same pattern are included, the drive unit 46 updates the color or illuminance of the light emitted from the light emitting unit 42 according to the detected pattern.

[0055] Even in this way, the drive unit 46 can reduce the determination error due to noise or the like and surely update the color and illuminance of the light emitted from the light emitting unit 42.

[0056] Further, the drive unit 46 may determine whether a predetermined number of control signals of the same pattern are included within a cycle, excluding the first control signal in the cycle in which control signals of the same pattern are continuously transmitted. For example, in the example of FIG. 4, the drive unit 46 acquires three control signals out of the four control signals transmitted in one color transmission process or illuminance transmission process, excluding the first one of the four control signals, and determines whether two or more control signals of the same pattern are included in the three acquired control signals.

[0057] Even in this case, since the drive unit 46 can detect the pattern of the control signals, excluding the control signal immediately after the pattern changes, it can reduce the determination error and more reliably update the color and illuminance of the light emitted from the light emitting unit 42.

[0058] FIG. 5 is a diagram showing a second example of the first table.

[0059] When the number of pulse width modulation patterns that can be transmitted by the control signal is larger than the total number of color types and illuminance types, the first table may have a pattern range associated with one color or one illuminance. For example, when the resolution of the duty ratio transmitted by the control signal is larger than the total number of color types and illuminance types, the first table may have a duty ratio range associated with one color or one illuminance.

[0060] For example, in the example of FIG. 5, the first table associates a range of duty ratios of 11% or more and 15% or less with color (2). Also, for example, in the example of FIG. 5, the first table associates a range of duty ratios of 18% or more and 22% or less with color (3). In such a case, it is preferable that the control unit 38 transmits a control signal having a duty ratio at the center within the range of the duty ratio corresponding to the color or illuminance specified by the user. Thereby, even if the duty ratio fluctuates somewhat due to noise or the like, the drive unit 46 can surely update the color or illuminance.

[0061] In addition, the first table may include a pattern to which neither color nor illuminance is assigned, for example, a duty ratio to which neither color nor illuminance is assigned. For example, in the example of FIG. 5, the duty ratios of 16%, 17%, 23%, and 24% are not associated with either color or illuminance. For example, the first table includes blank patterns to which neither color nor illuminance is associated, at the boundaries between two different colors, at the boundaries between two different illuminances, and at the boundaries between color and illuminance. Thereby, even if the duty ratio fluctuates somewhat due to noise or the like, the drive unit 46 can be less likely to update to an incorrect color or illuminance.

[0062] FIG. 6 is a timing chart showing the timing of the initialization process of the vehicle lighting system 10.

[0063] The vehicle control device 22 may execute an initialization process according to a user operation. In this case, the control unit 38 stores in advance initial color information indicating the color to be emitted by the light emitting unit 42 after initialization, and initial illuminance information indicating the illuminance to be emitted by the light emitting unit 42 after initialization.

[0064] When the control unit 38 receives an operation instructing initialization, the control unit 38 executes a process of initializing the vehicle control device 22. Then, after initialization, the control unit 38 transmits a control signal of a pattern based on the initial color information and the initial illuminance information to the lighting device 20.

[0065] The vehicle lighting system 10 executes an initialization process at the timing shown in FIG. 6 as an example.

[0066] First, at time t 21In this case, the light emitting unit 42 emits light of color (1) and illuminance (4). In this case, the color information stored in the color information storage unit 34 indicates color (1). In this case, the illuminance information stored in the illuminance information storage unit 36 indicates illuminance (4). Further, the control unit 38 continuously transmits a control signal with a duty ratio of 10% four times in a cycle of executing the color transmission process. Further, the control unit 38 continuously transmits a control signal with a duty ratio of 90% four times in a cycle of executing the illuminance transmission process.

[0067] Subsequently, at time t 22 the control unit 38 receives an operation instructing initialization from the user.

[0068] Subsequently, at time t 23 the control unit 38 starts initializing the vehicle control device 22 in response to receiving the operation instructing initialization. During the initialization process, the control unit 38 stops transmitting the control signal. However, even when the drive unit 46 does not receive the control signal, the control unit 38 does not change the color and illuminance of the light emitted from the light emitting unit 42. Therefore, during the initialization process, the light emitting unit 42 emits light of color (1) and illuminance (4).

[0069] After the initialization process is completed, at time t 24 the control unit 38 stores the initial color information in the color information storage unit 34 and stores the initial illuminance information in the illuminance information storage unit 36.

[0070] Subsequently, in the color transmission process after initialization, the control unit 38 transmits a control signal of a pattern corresponding to the initial color information stored in the color information storage unit 34 to the lighting device 20. In the example of FIG. 6, the color information storage unit 34 stores color (4) as the initial color information. Then, in the example of FIG. 6, the control unit 38 starts the first color transmission process at time t 25 and continuously transmits a control signal with a duty ratio of 40% corresponding to color (4) four times. And at time t 26In this case, when the drive unit 46 receives a control signal with a duty ratio of 40% continuously for a predetermined number of times, the color of the light emitted from the light emitting unit 42 is updated from color (1) to color (4).

[0071] Further, in the illuminance transmission process after initialization, the control unit 38 transmits a control signal of a pattern corresponding to the initial illuminance information stored in the illuminance information storage unit 36 to the lighting device 20. In the example of FIG. 6, the illuminance information storage unit 36 stores illuminance (2) as the initial illuminance information. And in the example of FIG. 6, the control unit 38 starts the first illuminance transmission process from time t 26 and continuously transmits a control signal with a duty ratio of 70% corresponding to illuminance (2) four times. And at time t 27 when the drive unit 46 receives a control signal with a duty ratio of 70% continuously for a predetermined number of times, the illuminance of the light emitted from the light emitting unit 42 is updated from illuminance (4) to illuminance (2).

[0072] By executing the above-described processing, after initializing the vehicle control device 22, the control unit 38 can cause the lighting device 20 to emit light of the initial state color and illuminance.

[0073] As described above, the vehicle lighting system 10 according to the present embodiment updates the color and illuminance of the light emitted by the lighting device 20 by transmitting one pulse-width modulated control signal from the vehicle control device 22 to the lighting device 20. Thereby, according to the vehicle lighting system 10, the color and illuminance of the light emitted by the lighting device 20 can be controlled with a small number of electric wires from the vehicle control device 22.

[0074] Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. The embodiments can be variously modified.

Description of Reference Numerals

[0075] 10 Vehicle lighting system, 20 Lighting device, 22 Vehicle control device, 24 Signal line, 32 First table storage unit, 34 Color information storage unit, 36 Illuminance information storage unit, 38 Control unit, 42 Light emitting unit, 44 Second table storage unit, 46 Driving unit, 52 Red LED, 54 Green LED, 56 Blue LED

Claims

1. A lighting device provided on a vehicle, A vehicle control device provided on the vehicle, Comprising, The vehicle control device, A first table storage unit that stores a first table in which different colors or illuminance levels are associated with each of a plurality of patterns in pulse width modulation; Receives an operation for designating the color or the illuminance level from a user, and transmits a control signal in which pulse width modulation of a pattern corresponding to the color or the illuminance level designated by the operation is performed to the lighting device among the plurality of patterns included in the first table. A control unit, Having, The lighting device, A light emitting unit capable of emitting light of different colors and illuminance levels, A second table storage unit that stores a second table in which the same color or illuminance level as the first table is associated with each of the plurality of patterns, Receives the control signal, and updates the color or the illuminance level of the light emitted from the light emitting unit to the color or the illuminance level corresponding to the pattern of the received control signal among the plurality of patterns included in the second table. A drive unit, A vehicle lighting system having.

2. The lighting device, A color information storage unit that stores color information indicating the designated color, An illuminance information storage unit that stores illuminance information indicating the designated illuminance level, Further having, The control unit alternately repeats a color transmission process of continuously transmitting the control signal of the pattern corresponding to the color information a predetermined number of times and an illuminance transmission process of continuously transmitting the control signal of the pattern corresponding to the illuminance information a predetermined number of times. The vehicle lighting system according to claim 1.

3. The drive unit updates the color or the illuminance level of the light emitted from the light emitting unit in response to receiving the control signal of the same pattern continuously a predetermined number of times. The vehicle lighting system according to claim 2.

4. The control unit, Pre-stores initial color information indicating the color to be emitted from the light emitting unit after initialization and initial illuminance information indicating the illuminance level to be emitted from the light emitting unit after initialization, When receiving the operation for instructing initialization, executes a process of initializing the vehicle control device, and after the initialization, transmits the control signal of the pattern based on the initial color information and the initial illuminance information to the lighting device. The vehicle lighting system according to claim 1.

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