Vehicle Lighting Demonstration System

Abstract

Provided is a vehicle lighting demonstration system, comprising: a first control system configured to control in-vehicle lighting; a second control system configured to control a dimming unit in a predetermined part in an area around a vehicle passenger compartment, the dimming unit being capable of adjusting a light transmittance; and a coordinated control unit configured to coordinate operations of the first control system and the second control system with each other. According to the vehicle lighting demonstration system of the present disclosure, a comfortable private space can be formed and an efficient demonstration can be performed without any specific manual operation by a passenger.

Description

Technical Field

[0001] The present disclosure relates to a vehicle lighting demonstration system. Background Art

[0002] For example, the vehicle lighting device in JP2011-25870A relates to a technology that turns on the lights when the door is opened and when the user approaches the vehicle by a single lighting operation. That is, when the in-vehicle unit detects the approach of the user, the transistor switch is controlled to turn on or off with a duty ratio of 60%, and the dome lamp is turned on with an illuminance of 60% for welcome lighting.

[0003] In welcome lighting, when the door open / close detection unit detects that the door is opened, the transistor switch is continuously turned on (duty ratio: 100%), and the dome lamp is turned on by increasing the illuminance to 100%.

[0004] In addition, the dimming glass device in JP2010-120415A relates to a technology that stops applying voltage to the dimming glass when the dimming glass is broken. The dimming glass device includes an inverter that converts the DC voltage output from a battery mounted on the vehicle into an AC voltage, a dimming glass having a dimming film whose light transmittance changes when an AC voltage is applied, and a conductive unit that connects the battery and the inverter. A part of the conductive unit is a printed wiring portion integrally formed on the glass by printing.

[0005] In recent years, attempts have been made to practically apply autonomous driving to automobiles, and thus there is an increasing need to enhance the function of the vehicle passenger compartment as a living space. For example, even when the vehicle is being driven, when there is no need to see the scenery outside the vehicle from the vehicle passenger compartment, the vehicle passenger compartment can be isolated from the outside of the vehicle passenger compartment as a private space for the occupants. Specifically, it may be necessary to use curtains or the like to hide the occupants resting in the vehicle passenger compartment in a way that cannot be seen by others outside the vehicle.

[0006] In addition, when the environment is relatively dark while the occupants are resting in the vehicle passenger compartment, for example, it may be necessary to turn on the lights in the vehicle passenger compartment for reading or working. However, when the lights in the vehicle passenger compartment are turned on while the environment is relatively dark, the vehicle passenger compartment may be completely visible to others outside the vehicle through the vehicle's window glass. Therefore, unless he / she manually closes the curtains every time, the occupants cannot use the vehicle passenger compartment as a private space.

[0007] In a vehicle, dedicated devices such as dimming glass shown in JP2010-120415A are installed only as standard equipment in some luxury vehicles and high-class vehicles, or are very likely to be installed as optional equipment according to the requirements of users. Therefore, a system such as dimming glass is installed on the vehicle separately in a state completely independent of a general system such as an in-vehicle lighting device.

[0008] Therefore, even in the case of a vehicle equipped with a dimming glass control system, whenever the vehicle passenger compartment is isolated from the outside as a private space by blocking the dimming glass, the occupant must perform a specific switch operation.

[0009] In addition, in order to associate the operations of a plurality of subordinate systems on a vehicle, when a host system controls a plurality of subordinate systems that are independent of each other, the program for the host system must be rewritten. However, since the host system usually performs very complex control, various difficulties are encountered when modifying the program. SUMMARY OF THE INVENTION

[0010] The present disclosure provides a vehicle lighting demonstration system that can automate operations to form a comfortable private space or reduce the required operations in a vehicle passenger compartment.

[0011] According to an illustrative aspect of the present application, a vehicle lighting demonstration system includes: a first control system configured to control in-vehicle lighting; a second control system configured to control a dimming unit located in a predetermined portion of an area around a vehicle passenger compartment, the dimming unit being capable of adjusting a light transmittance; and a coordination control unit configured to coordinate the operations of the first control system and the second control system with each other.

[0012] The present disclosure has been briefly described above. Details of the present disclosure will be further clarified by reading the following description of the mode (hereinafter, referred to as "embodiment") of the present disclosure to be implemented with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a block diagram showing a configuration example 1 of a lighting demonstration system according to an embodiment of the present disclosure.

[0014] Figure 2 is shown in Figure 1 a flowchart of control logic of a noise filter in the shown lighting demonstration system.

[0015] Figure 3 is shown Figure 1 a timing chart of an operation example of the shown lighting demonstration system.

[0016] Figure 4It is a block diagram showing a configuration example 2 of an illumination demonstration system according to an embodiment of the present disclosure.

[0017] Figure 5 It is a flowchart showing the characteristic operations of the main control unit in the Figure 4 illustrated illumination demonstration system.

[0018] Figure 6 It is a schematic diagram showing an example of the correspondence between the inputs and outputs of multiple coordination systems. Detailed Description of the Invention

[0019] The detailed embodiments related to the present disclosure will be described below with reference to the accompanying drawings.

[0020] <First Embodiment>

[0021] <System Configuration 1>

[0022] Figure 1 It shows a configuration example of an illumination demonstration system 100 according to an embodiment of the present disclosure.

[0023] Figure 1 The illustrated illumination demonstration system 100 has a function of coordinating the illumination control system 10 and the dimming control system 20 installed on the vehicle. In addition, the main control unit 30 is provided as a control unit having a higher level than the illumination control system 10 and the dimming control system 20. The main control unit 30 has a function of managing the entire vehicle body system (body control module: BCM).

[0024] The power supply system of the illumination demonstration system 100 is connected to the vehicle-side power supply lines 41, 42, 43 and the ground (GND) 44. The power supply line 41 supplies the power output from the in-vehicle battery (+B), the power supply line 42 supplies the dome cut-off power that is turned off after a predetermined time through a timer or the like, and the power supply line 43 supplies the power connected to the ignition (IG) on / off.

[0025] Figure 1 The illustrated illumination control system 10 is a unit installed on the roof portion of the vehicle passenger compartment as an overhead console (OHC) and is provided with an in-vehicle illumination function. As Figure 1 The illustrated dimming control system 20 is a unit including dimming glass 24 installed on the vehicle left and right door windows.

[0026] As Figure 1 shown, the illumination control system 10 includes an illumination control unit 11, a switch unit 12, an illumination switch 13, and an illumination unit 14.

[0027] The lighting control unit 11 is connected to the main control unit 30 via a communication line 15 capable of multi-channel communication (e.g., clock extension peripheral interface: CXPI), and controls the lighting control system 10 as a slave device of the main control unit 30. In addition, a switch unit 12 and a lighting switch 13 are connected to the input side of the lighting control unit 11, and a lighting unit 14 and a coordination signal line 16 are connected to the output side of the lighting control unit 11.

[0028] The lighting control unit 11 controls the energization state of each unit of the lighting unit 14 according to the states of various signals input from the switch unit 12 and the lighting switch 13 and instructions from the main control unit 30.

[0029] The lighting control unit 11 notifies the main control unit 30 of the states of the switch unit 12 and the lighting switch 13 by using multi-channel communication of the communication line 15. The lighting control unit 11 outputs a signal representing the current control state in the lighting control system 10 to the coordination signal line 16.

[0030] The switch unit 12 includes a right upper position (RH) lighting switch, a left upper position (LH) lighting switch, a door open switch, a full lighting open switch, and a dimming glass open switch. The lighting switch 13 includes a plurality of switches assigned for lighting to corresponding units.

[0031] The lighting unit 14 includes three lighting lamps (LEDs) on the upper right side, three lighting lamps on the upper left side, a lighting lamp (LED) on the upper right side, and a lighting lamp on the upper left side.

[0032] The lighting control unit 11 can individually control the on / off of each of the six lighting lamps included in the lighting unit 14. In addition, the lighting control unit 11 can control the on / off, emission intensity, emission color, etc. of the lighting lamps at two positions.

[0033] The coordination signal line 16 connected to the output terminal of the lighting control unit 11 is used to output a signal having content reflecting one or more control states of the lighting lamps of the lighting unit 14.

[0034] The lighting control unit 11 can process an ignition signal, a door open / close (CTY) signal, a headlight (ILL or TAIL) signal, various operation switch signals, vehicle information signals, etc. In addition, the information of these signals can be shared between the lighting control unit 11 and the main control unit 30 by multi-channel communication via the communication line 15.

[0035] The dimming control system 20 includes a dimming unit 21. An inverter 22 and a noise filter 23 are provided inside the dimming unit 21. The noise filter 23 includes a slave device control unit 23a.

[0036] The inverter 22 can generate alternating current by switching the direct current power supply supplied from the power line 41. The noise filter 23 can remove the noise components from the alternating current supplied from the output terminal of the inverter 22 to generate an alternating voltage having a waveform suitable for driving the dimming films 25R and 25L.

[0037] The slave device control unit 23a in the noise filter 23 is a logic circuit having a function of operating as a slave device of the master control unit 30 via a communication line 26 by multi-drop communication (e.g., CXPI). The slave device control unit 23a can turn on / off the alternating voltage supplied to the dimming films 25R and 25L as the case may be, and adjust the supplied alternating voltage.

[0038] In Figure 1 In the configuration shown, based on the signal input from the output terminal of the lighting control unit 11 of the lighting control system 10 via the coordination signal line 16 and the instruction from the master control unit 30 input via the communication line 26, the slave device control unit 23a switches the alternating voltage supplied to the dimming films 25R and 25L.

[0039] Each of the dimming films 25R and 25L is composed of a film-like dimming film whose light transmittance or light reflectance in the thickness direction can be electrically adjusted. The dimming film has a plurality of transparent electrodes, and the light transmittance or light reflectance is changed by supplying a predetermined alternating voltage between the electrodes.

[0040] The dimming films 25R and 25L are disposed along the glass surface in a state inside the dimming glass 24 constituting the window glass of each door, or are mounted in a state of being mounted on the outer surface of the glass.

[0041] Therefore, by switching the alternating voltage supplied to the dimming films 25R and 25L by the dimming unit 21, the dimming glass 24 can be controlled as needed to be in a light-shielding state or a transparent state.

[0042] In Figure 1 In the lighting demonstration system 100 shown, as a characteristic function, it is possible to realize the coordinated operation of the lighting control system 10 and the dimming control system 20 that are independent of each other. That is, since the signal reflecting the control state of the lighting control unit 11 is input to the noise filter 23 via the coordination signal line 16, the slave device control unit 23a can perform control so as to coordinate the lighting state in the vehicle passenger compartment of the lighting control system 10 with the dimming states of the dimming films 25R and 25L.

[0043] <System operation 1>

[0044] Figure 2 Shown in Figure 1An outline of the control logic of the noise filter 23 in the illustrated lighting demonstration system 100. That is, the slave device control unit 23a in the noise filter 23 implements the operations as shown in Figure 2 as shown. Figure 2 The operations in Figure 2 will be described below.

[0045] In S11, the slave device control unit 23a grasps the state change of the lighting control on the lighting control system 10 side by monitoring the signal state of the coordination signal line 16. Then, when it is detected in S12 that the lighting in the lighting control system 10 has been switched from off to on, the process proceeds to S13.

[0046] For example, when the surrounding environment is dark and the lighting switch is turned on to turn on the in-vehicle lighting, since the lighting light is bright enough compared to the surrounding environment, it is very likely that the vehicle passenger compartment can be completely seen from the outside. To prevent this, the slave device control unit 23a performs the coordination control in S13 and subsequent processes. For example, when the welcome is set by the lighting accompanying the opening and closing of the door, the slave device control unit 23a performs the coordination control, so that the demonstration can be more effective.

[0047] In the present embodiment, it is possible to select whether to use the dimming synchronization mode as needed. When the dimming synchronization mode is not required, the slave device control unit 23a proceeds from S13 to S14, and automatically switches the dimming films 25R and 25L to the light-shielding state according to the switching of the in-vehicle lighting or the lighting to the on state.

[0048] For example, when the lighting is used to demonstrate the welcome of the occupant, the slave device control unit 23a selects the dimming synchronization mode. Then, when the dimming synchronization mode is required, the slave device control unit 23a proceeds from S13 to S15, and performs an automatic switch so that the light transmittance of each of the dimming films 25R and 25L gradually decreases synchronously (the light reflectance increases) as the luminous amount or illuminance of the in-vehicle lighting or the lighting increases.

[0049] In S16, the slave device control unit 23a grasps the state change of the lighting control on the lighting control system 10 side by monitoring the signal state of the coordination signal line 16. Then, when it is detected in S17 that the lighting in the lighting control system 10 has been switched from on to off, the process proceeds to S18.

[0050] When the dimming synchronization mode is not required, the slave device control unit 23a proceeds from S18 to S19, and automatically switches the dimming films 25R and 25L to the light-transmitting state according to the switching of the in-vehicle lighting or the lighting to the off state.

[0051] Then, when the dimming synchronization mode is required, the slave device control unit 23a enters S20 from S18 and performs automatic switching so that the light transmittance of each of the dimming films 25R and 25L gradually increases synchronously (the reflectance decreases) as the luminous amount or illuminance of the in-vehicle lighting or the lighting decreases.

[0052] The coordination between the dimming synchronization mode or the lighting control system 10 and the dimming control system 20 can be appropriately switched according to changes in the situation. For example, changes in the brightness of the surrounding environment that can be detected by an illuminance sensor, on / off changes of the headlights, opening and closing changes of the doors, etc. can all be reflected in the Figure 2 coordination control shown.

[0053] <Operation Example>

[0054] Figure 3 shows Figure 1 an operation example of the lighting demonstration system 100 shown. Figure 3 The operation shown corresponds to a situation where the above dimming synchronization mode is required.

[0055] For example, when the signal SG1 output by any switch of the switch unit 12 switches from off to on at the time point t1 as shown in Figure 3 shown, the lighting control unit 11 in the lighting control system 10 controls the emission intensity of the lighting of the lighting unit 14 according to the signal SG1, so as to gradually increase from the time point t1. Since a signal representing the same state as this lighting control appears in the coordination signal line 16, the slave device control unit 23a of the dimming control system 20 performs control to adjust the dimming of the dimming films 25R and 25L, so that the light transmittance of the dimming glass 24 gradually decreases synchronously at the time point t1 according to the signal in the coordination signal line 16.

[0056] Therefore, the occupants in the vehicle can recognize that the luminous amount in the in-vehicle lighting and the light transmittance of the window glass are coordinated with each other and change simultaneously. In the Figure 3 example, it is assumed that only the light transmittance of the window glass and the luminous amount in the lighting are adjusted. Alternatively, the lighting can be demonstrated by combining changes in the emission color and changes in the lighting position in the lighting.

[0057] <Second Embodiment>

[0058] <System Configuration 2>

[0059] Figure 4 shows a configuration example of a lighting demonstration system 100A according to an embodiment of the present disclosure. The lighting demonstration system 100A is a Figure 1 variant of the lighting demonstration system 100 in Figure 4 In Figure 1 the same components are denoted by the same reference numerals.

[0060] Figure 4 The lighting demonstration system 100A therein includes a lighting control system 10A, a dimming control system 20A, and a main control unit 30A. Except for the absence of Figure 1 the coordination signal line 16 shown in Figure 1 the lighting control system 10A has the same construction and operation as that of the lighting control system 10 in

[0061] In Figure 4 the lighting demonstration system 100A, the main control unit 30A has a function of coordinating the operations of the lighting control system 10A and the dimming control system 20A. In addition, the main control unit 30A provides, via the communication line 26, an instruction for coordinating the operations of the lighting control system 10A and the dimming control system 20A to the slave device control unit 23Aa of the noise filter 23A through multi-channel communication.

[0062] In Figure 4 the shown construction, an input device 34 including an illuminance sensor 31, a headlight switch 32, and a door switch 33 is connected to the input end of the main control unit 30A. The illuminance sensor 31 can detect the illuminance in the external environment of the vehicle passenger compartment. The headlight switch 32 outputs a signal indicating the on / off of the headlight illumination in the vehicle. The door switch 33 outputs a signal indicating the open / closed state of the door.

[0063] The slave device control unit 23Aa of the dimming control system 20A performs dimming control of the dimming films 25R and 25L according to an instruction from the main control unit 30A.

[0064] <System operation 2>

[0065] Figure 5 Shown is Figure 4 the characteristic operation of the main control unit 30A in the lighting demonstration system 100A shown in Figure 5 The operation in

[0066] In S21, the main control unit 30A monitors the state information of the switch unit 12 transmitted from the lighting control unit 11 and the states of various signals input from the input device 34, so as to grasp the change of the situation. Then, when it is recognized in S22 that the in-vehicle lighting or the lighting controlled by the lighting control system 10A has been switched from off to on, the process proceeds from S22 to S23.

[0067] For example, when the surrounding environment is dark and the lighting switch of the switch unit 12 is turned on to turn on the in-vehicle lighting, since the lighting light is sufficiently brighter than the surroundings, it is very likely that the vehicle passenger compartment can be completely seen from the outside. To prevent this, the main control unit 30A performs coordinated control in S23 and subsequent processes. For example, when setting a welcome for passengers by means of lighting that accompanies the opening and closing of the door, the main control unit 30A performs coordinated control in S23 and subsequent processes, enabling a more effective demonstration. In addition, for example, when the surrounding environment is bright, it is difficult to clearly see the lighting and other in-vehicle displays due to the influence of external light, and the occupants are easily affected by a disorderly environment such as fluctuations in the intensity of external light. In this case, a "private space demonstration mode" is set, and the main control unit 30A performs coordinated control in S23 and subsequent processes.

[0068] In this embodiment, it is possible to select whether to use the dimming synchronization mode as needed. When the dimming synchronization mode is not required, the main control unit 30A proceeds from S23 to S24 and automatically switches the dimming films 25R and 25L to the light-shielding state according to the switching that turns on the in-vehicle lighting or the lighting.

[0069] For example, when using lighting to demonstrate the welcome of the occupants, the main control unit 30A selects the dimming synchronization mode. Then, when the dimming synchronization mode is required, the main control unit 30A proceeds from S23 to S25 and performs an automatic switch such that as the luminous amount or illuminance of the in-vehicle lighting or the lighting increases, the transmittance of each of the dimming films 25R and 25L gradually decreases synchronously.

[0070] In S26, the main control unit 30A monitors the switch information transmitted from the lighting control unit 11 and the state of the signal input from the input device 34, thereby grasping the change in the situation. Then, when it is detected in S27 that the lighting of the lighting control system 10A has been switched from off to on, the process proceeds to S28.

[0071] When the dimming synchronization mode is not required, the main control unit 30A proceeds from S28 to S29 and automatically switches the dimming films 25R and 25L to the light-transmitting state according to the switching that turns off the in-vehicle lighting or the lighting.

[0072] When the dimming synchronization mode is required, the main control unit 30A proceeds from S28 to S30 and performs an automatic switch such that as the luminous amount or illuminance of the in-vehicle lighting or the lighting decreases, the transmittance of each of the dimming films 25R and 25L gradually increases synchronously.

[0073] The coordination between the dimming synchronization mode or the lighting control system 10A and the dimming control system 20A can be appropriately switched according to the change of the situation. For example, the brightness change of the surrounding environment that can be detected by the illuminance sensor 31, the on / off change of the headlight switch 32, the opening and closing changes detected by the door switch 33, etc. can be reflected in the Figure 5 coordination control shown.

[0074] <Specific examples of system coordination>

[0075] Figure 6 An example showing the correspondence between the combinations of various input conditions and the control output when multiple systems are coordinated with each other is shown.

[0076] It is expected that in the in-vehicle system including the lighting control system 10 and the dimming control system 20, as Figure 6 shown, the states of input items such as various lighting switches, door open / close signals (CYT), door unlocking signals, headlight on signals (TAIL), illuminance sensor detection states, intrusion / surveillance sensor detection states, and dimming control switches (RH, LH) are flexibly reflected in the control.

[0077] When the lighting control system 10 and the dimming control system 20 are coordinated with each other as in the Figure 1 and Figure 4 lighting demonstration systems 100 and 100A shown, multiple combinations or one of the input items shown in (1) to (7) below can be reflected in the coordinated control.

[0078] (1) (In a darker situation) The combination of the lighting switch and the illuminance sensor.

[0079] (2) The combination of the door open / close and the illuminance sensor.

[0080] (3) The combination of unlocking and intrusion / surveillance.

[0081] (4) The intrusion / surveillance state (when detected multiple times within a certain period: countermeasures to prevent false detection).

[0082] (5) (In a darker situation) The combination of the dimming control switch and the illuminance sensor.

[0083] (6) The combination of the lighting switch, the headlight on, and the illuminance sensor.

[0084] (7) The combination of the door open / close, the headlight on, and the illuminance sensor.

[0085] In addition, in the lighting demonstration system 100, a function for customizing the coordinated control conditions for each vehicle user according to his / her preferences is provided. This can flexibly respond to the needs of various users.

[0086] In the above embodiment, it is assumed that the lighting control system 10 is an overhead console. Alternatively, other in-vehicle lighting systems and dimming control systems 20 can be configured to coordinate with each other.

[0087] As described above, in the lighting demonstration systems 100 and 100A according to the embodiments of the present disclosure, since the lighting control system 10 and the dimming control system 20 automatically coordinate with each other, a specific switch operation for forming a private space in the vehicle passenger compartment is not necessary.

[0088] For example, when the surrounding environment is dark and the lighting control system 10 turns on the in-vehicle lighting, since the dimming control system 20 can coordinate to automatically reduce the light transmittance of the window glass simultaneously, it is possible to prevent the vehicle passenger compartment from being visible from the outside of the vehicle due to the influence of the in-vehicle lighting. In addition, since the light reflectance of the window glass increases simultaneously, the vehicle passenger compartment can be made brighter.

[0089] For example, when the lighting control system 10 demonstrates welcome to the occupants through the in-vehicle lighting, the dimming control system 20 can coordinate to automatically reduce the light transmittance of the window glass. This reduces the influence of the disturbing light entering from the outside of the vehicle passenger compartment and enables a more effective lighting demonstration.

[0090] In addition, since the lighting control system 10 and the dimming control system 20 automatically coordinate with each other, the operations of both can be synchronized. Therefore, the combination of the in-vehicle lighting or the change in the brightness of the lighting and the change in the light transmittance of the window glass can be precisely controlled, and the precision of the demonstration can be improved.

[0091] In Figure 1 the case of the lighting demonstration system 100 shown, since the coordination of the dimming control system 20 is controlled by using the signal in the coordination signal line 16 output by the lighting control system 10, when it is necessary to increase the coordination function, there is no need to change the operation or structure of the main control unit 30. Therefore, coordinated control can be achieved without making major changes to the structure and operation of the existing system.

[0092] The present disclosure is not limited to the above embodiments and can be appropriately modified, improved, etc. In addition, as long as the present invention can be implemented, the materials, shapes, dimensions, quantities, arrangement positions, etc. of the components in the above embodiments are optional and not limited.

[0093] According to a first aspect of the present disclosure, a vehicle lighting demonstration system includes: a first control system (lighting control system 10) configured to control in-vehicle lighting; a second control system (dimming control system 20) configured to control a dimming unit in a predetermined part in an area around a vehicle passenger compartment, the dimming unit being capable of adjusting a light transmittance; and a coordination control unit (slave device control unit 23a, or master control unit 30A) configured to coordinate operations of the first control system and the second control system with each other.

[0094] In the vehicle lighting demonstration system according to the first aspect, multiple systems automatically work in coordination with each other, so that a comfortable private space can be formed and an effective demonstration can be performed without any specific manual operation by a passenger.

[0095] According to a second aspect of the present disclosure, when the coordination control unit (master control unit 30A) detects a predetermined private space demonstration mode, the coordination control unit (master control unit 30A) is configured to switch to a state in which the dimming unit shields a visually disordered environment, and switch a state of the in-vehicle lighting (S22, S24, and S25).

[0096] In the vehicle lighting demonstration system according to the second aspect, when in-vehicle lighting is used, the dimming unit shields a visually disordered environment, so that the influence of disordered light entering the vehicle passenger compartment from outside the vehicle can be prevented. Therefore, fluctuations in brightness in the vehicle passenger compartment when using lighting can be prevented, and the lighting demonstration can be controlled to a state that is easy to view.

[0097] According to a third aspect of the present disclosure, when the illuminance in the vehicle passenger compartment increases through the in-vehicle lighting in response to a decrease in illuminance in the external environment, the coordination control unit (master control unit 30A) is configured to switch to a state in which the dimming unit shields a visually disordered environment (S22, S24, and S25).

[0098] In the vehicle lighting demonstration system according to the third aspect, when it is dark around and in-vehicle lighting is used, the vehicle passenger compartment can be automatically prevented from being visible from outside the vehicle passenger compartment due to the influence of lighting light in the vehicle passenger compartment. This can maintain a comfortable private space in the vehicle passenger compartment.

[0099] According to a fourth aspect of the present disclosure, when the coordination control unit coordinates the operation of the first control system and the operation of the second control system, the coordination control unit is configured to synchronize a change in a light emission amount in the in-vehicle lighting and a change in the light transmittance of the dimming unit, so as to control the in-vehicle lighting and the dimming unit simultaneously (S25, and S30).

[0100] In the vehicle lighting demonstration system according to the fourth aspect, the change in the luminous amount in the vehicle interior lighting occurs synchronously with the change in the light transmittance of the dimming unit, so that a more effective demonstration can be performed on the entire vehicle, and a demonstration with smooth change can be performed with high precision.

[0101] According to the fifth aspect of the present disclosure, the dimming unit (dimming films 25R and 25L) is at least mounted on the window glass portion (dimming glass 24) of the vehicle.

[0102] In the vehicle lighting demonstration system according to the fifth aspect, when the light transmittance at the window glass portion of the vehicle is adjusted, it is easy to provide a function of blocking other people outside the vehicle at night and isolating the space inside the vehicle from the outside of the vehicle, so that the brightness in the vehicle passenger compartment is less affected by disturbing light.

[0103] In the vehicle lighting demonstration system according to the present disclosure, automated operation can be achieved, so as to form a comfortable private space in the vehicle passenger compartment or reduce the required operations.

Claims

1. A vehicle lighting demonstration system, comprising: A first control system configured to control in-vehicle lighting; A second control system configured to control a dimming unit in a predetermined part in an area around a passenger compartment of the vehicle, the dimming unit being capable of adjusting a light transmittance; A coordination control unit configured to coordinate operations of the first control system and the second control system with each other; And A coordination signal line connected to an output side of a lighting control unit of the first control system, wherein: The lighting control unit outputs a signal representing a current control state in the first control system to the coordination signal line; A signal reflecting the control state of the lighting control unit is input to the second control system via the coordination signal line; and The coordination control unit is configured to coordinate the operation of the second control system based on a signal input from the output side of the lighting control unit and an instruction from a main control unit, the main control unit being a control unit hierarchically higher than the first control system and the second control system.

2. The vehicle lighting demonstration system according to claim 1, wherein The dimming unit is at least installed in a window glass part of the vehicle.

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