WO2023033138A1

WO2023033138A1 - Vehicular lamp and control device and control method for vehicular lamp

Info

Publication number: WO2023033138A1
Application number: PCT/JP2022/033079
Authority: WO
Inventors: 勇一中澤; 裕一綿野; 雄太丸山; 貴丈戸塚
Original assignee: 株式会社小糸製作所
Priority date: 2021-09-06
Filing date: 2022-09-02
Publication date: 2023-03-09

Abstract

This vehicular lamp (100) comprises: a plurality of lamps (120a-120d) which respectively provide lamp functions different from each other; and a lamp electronic control unit (ECU) (200) which detects whether the plurality of lamps (120a-120d) operate correctly, selects a substitute lamp from among the correctly operating lamps when an incorrectly operating lamp has been detected, and controls the substitute lamp so that the substitute lamp is lighted in a substitute lighting mode that simulates the incorrectly operating lamp.

Description

VEHICLE LAMP, VEHICLE LAMP CONTROL DEVICE AND CONTROL METHOD

The present invention relates to a vehicle lamp, a vehicle lamp control device, and a control method.

Conventionally, in a vehicle lighting device that combines a display and a marker light, it is known to switch at least a part of the display to the marker light when a malfunction of the marker light is detected, and to continue the function of the marker light by the display (for example, , see Patent Document 1).

In addition, in order to provide a visual effect using vehicle lighting, the vehicle lighting may be made to light up in a characteristic manner that is not performed while the vehicle is running. As an example of such lighting effects, when welcoming a driver into a parked vehicle, various vehicular lighting fixtures, such as headlights and various marker lights, are linked to create a unique way of using these fixtures that is different from the original usage. A so-called “hospitality lighting” that lights up is known (see, for example, Patent Document 2).

Japanese Patent Application Laid-Open No. 2019-34640 JP 2019-202588 A

For example, due to performance degradation over time due to long-term use or accidental failure, vehicle lighting may not be able to perform its functions properly. Substitution of a marker lamp by a display as described above is useful in coping with such a situation and increasing the reliability of vehicle lamps. However, a vehicle lamp with a built-in display tends to be more expensive than a type without a display, and may be difficult to adopt in situations where cost reduction is desired. Naturally, the above countermeasures cannot be applied to a vehicle lamp designed without a display.

The present invention has been made in view of such circumstances, and one exemplary purpose of certain aspects thereof is to provide a vehicle lamp with a fail-safe function.

Vehicle lamps usually have a pair of lamps with the same function, and these lamps are installed in different places on the vehicle, for example, on the left and right sides of the vehicle, and in many situations both lamps light in the same way. Replacing marker lights with displays as described above is useful from the standpoint of fail-safety. However, if one of the pair of lighting fixtures replaces the indicator lamp with the display and the other lighting fixture maintains normal lighting of the corresponding indicator lamp with the same function, then both lamps should be lit in the same way. The lighting fixtures will take different lighting states, resulting in a lack of balance. Such lighting discrepancies may confuse or confuse the viewer.

The present invention has been made in view of this situation, and one of the exemplary purposes of certain aspects thereof is to achieve both fail-safety and reduction of discomfort for the viewer.

As a result of studying the above vehicle lamp, the inventors came to recognize the following problems. Dramatic lighting using vehicular lamps should be possible not only in scenes where the driver is outside the vehicle as described above, but also in scenes where the driver is in the vehicle. Directed lighting can also be used for greetings from the driver to people outside the vehicle, such as people about to enter the vehicle or people who have just exited the vehicle, and for making a visual impression. Since vehicle lamps must fulfill their original role as stipulated by law while the vehicle is in motion, lighting of effects is permitted only while the vehicle is stopped. Therefore, if the driver in the vehicle starts running the vehicle during the effect lighting, the vehicular lamp should immediately stop the effect lighting and return to its original lighting. However, the appearance from the outside of the vehicle is not very good if the effect lighting ends suddenly.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and one of the exemplary objects of certain aspects thereof is to provide a vehicle lamp that can make it difficult for viewers to have an unnatural impression when the lighting for lighting is finished. to provide.

A vehicular lamp according to one aspect of the present invention detects a plurality of lamps that provide lamp functions different from each other, detects whether or not each of the plurality of lamps operates normally, and detects a lamp that does not operate normally. and a control device that selects a substitute lamp from normally operating lamps and controls the substitute lamp so that it is lit in a substitute lighting mode that simulates a malfunctioning lamp.

According to this aspect, when a certain lamp does not operate normally, another lamp that originally provides a different lamp function can be used as a substitute for this lamp. In this manner, redundancy can be provided between different types of lighting fixtures to provide a fail-safe function for vehicle lighting fixtures.

The substitute lighting mode may be determined so as to light the substitute lamp with a brightness different from the normal lighting mode determined for the original function of the substitute lamp.

In this way, it is possible to mutually substitute between two types of lamps with different brightness in normal use. In other words, when one of the lamps malfunctions, the malfunctioning lamp can be simulated by dimming and lighting the other normal lamp. Taking a stop lamp and a tail lamp as an example, the tail lamp can be brightened as a substitute for the stop lamp, and the stop lamp can be dimmed as a substitute for the tail lamp.

The control device lights in the normal lighting mode and blinks in the substitute lighting mode determined for the original function of the substitute lighting fixture, or blinks in the normal lighting mode and lights in the substitute lighting mode. You can control the lights.

In this way, it is possible to mutually substitute the lighting fixture that blinks in normal use and the lighting fixture that simply turns on instead. That is, when one of the lamps malfunctions, the malfunctioning lamp can be simulated by switching the normal lamp from lighting to blinking (or from blinking to lighting). For example, as a substitute for the turn signal lamp, a stop lamp, tail lamp, or other lighting equipment with other functions can be used. In addition, the turn signal lamp can be substituted by a lamp with other functions.

The substitute lighting mode may be determined to light the substitute lamp in a color different from the normal lighting mode determined for the original function of the substitute lamp.

By doing so, it is possible to mutually substitute between two kinds of lamps that light in different colors in normal use. When one of the lamps has an abnormality, the malfunctioning lamp can be simulated by changing the color of light emitted by the other normal lamp. For example, as a substitute for the backup lamp, a stop lamp, tail lamp, or other lighting equipment with other functions can be used. In addition, a backup lamp can be substituted by a lamp having other functions.

The control device may be configured to control the plurality of lamps so that each lamp is lit in its normal lighting mode based on vehicle information received from the vehicle. When the substitute lamp should be lit in the normal lighting mode based on the vehicle information during the control of the substitute lamp in the substitute lighting mode, the control device controls the substitute lamp so as to switch from the substitute lighting mode to the normal lighting mode. good too.

In this way, in response to a lighting instruction based on the driver's driving operation or a lighting instruction from the automatic driving or driving support system, which is included in the vehicle information, the substitute lamp is returned to normal lighting, and this lamp is returned to normal lighting. can be used in its original role.

Each of the plurality of lamps may have a first lamp and a second lamp that form a pair. The control device detects whether or not each of the first lamps operates normally, and if a first lamp not operating normally is detected, selects a substitute lamp from the first lamps operating normally and operates normally. A substitute lamp is controlled so as to be lit in a substitute lighting mode simulating a first lamp that does not operate normally, and a second lamp that is paired with the first lamp that does not operate normally is checked whether the second lamp operates normally. However, it may be controlled to turn off the lamp and turn on the second lamp paired with the substitute lamp in the substitute lighting mode.

In this way, when one of a pair of lamps (for example, a pair of left and right lamps for the same function) is used for substitute lighting, the other of the pair of lamps is also interlocked. to switch to substitute lighting. It is possible to match the lighting states of the paired lamps, thereby eliminating or alleviating discomfort caused by a mismatch between the two.

Another aspect of the present invention is a control device for a vehicle lamp. A vehicle lamp includes a plurality of lamps that provide different lamp functions. The control device detects whether or not each of the plurality of lamps operates normally, and when a lamp not operating normally is detected, selects a substitute lamp from the lamps that operate normally, and replaces the lamp that does not operate normally. The substitute lamp is controlled so as to be lit in a simulated substitute lighting mode.

Yet another aspect of the present invention is a control method for a vehicle lamp. A vehicle lamp includes a plurality of lamps that provide different lamp functions. This method includes the steps of detecting whether or not each of a plurality of lighting fixtures operates normally, selecting a substitute lighting fixture from the lighting fixtures that operate normally when a lighting fixture that does not operate normally is detected, and performing normal operation. and controlling the substitute lighting fixture to light in a substitute lighting mode simulating a non-operating lighting fixture.

A vehicle lamp according to a second aspect of the present invention comprises: a first lamp unit providing a plurality of lamp functions different from each other; a second lamp unit paired with the first lamp unit and providing a plurality of lamp functions; It is detected whether or not each lamp function of the first lamp unit operates normally, and if a lamp function that does not operate normally is detected, the normal function of the first lamp unit is simulated so as to simulate the lamp function that does not operate normally. and a control device for controlling a portion that operates to The control device controls the second lamp so as to imitate the first lamp unit regardless of whether the lamp function of the second lamp unit paired with the malfunctioning lamp function of the first lamp unit operates normally. control the unit.

According to this aspect, the malfunctioning lamp function in the first lamp unit is replaced by the part that operates normally. A fail-safe function can be provided for the vehicle lamp. When the first lamp unit is switched to the alternative lighting state, the second lamp unit paired with the first lamp unit is also interlocked and switched to lighting that imitates the first lamp unit. It is possible to match the lighting states of the paired lamp units, thereby eliminating or alleviating discomfort caused by a mismatch between the two.

The first lamp unit may comprise a plurality of first lamps each providing a corresponding lamp function among the plurality of lamp functions. The second lamp unit may include a plurality of second lamps each providing a corresponding lamp function among the plurality of lamp functions and paired with the plurality of first lamps. The control device detects whether or not each of the first lamps operates normally, and if a first lamp not operating normally is detected, selects a substitute lamp from the first lamps operating normally and operates normally. Alternatively, the substitute lamp may be controlled so as to be lit in a substitute lighting mode that simulates the first lamp that does not turn on. At the same time, the control device turns off the second lamp paired with the malfunctioning first lamp regardless of whether the second lamp is operating normally, and the second lamp paired with the substitute lamp is turned off. may be controlled to be lit in a substitute lighting mode.

The first lamp unit may include a first display that provides multiple lamp functions. The second lamp unit may comprise a second display that provides multiple lamp functions. The control device detects whether or not the first display operates normally, and if an area that does not operate normally is detected on the first display, a plurality of other areas that operate normally on the first display are detected. may be controlled to provide the lamp function of At the same time, the control device turns off the area on the second display that is paired with the area on the first display that does not operate normally regardless of whether the area operates normally, and Regions on the second display paired with other regions that operate normally may be controlled to provide multiple lighting functions.

Another aspect of the present invention is a control device for a vehicle lamp. A vehicle lamp includes a first lamp unit providing a plurality of lamp functions different from each other, and a second lamp unit paired with the first lamp unit and providing a plurality of lamp functions. The control device detects whether or not each lamp function of the first lamp unit operates normally. Controls the working parts of the lighting unit. At the same time, the control device imitates the first lighting unit regardless of whether the lighting function of the second lighting unit, which is paired with the malfunctioning lighting function of the first lighting unit, operates normally. Controls the second lighting unit.

Yet another aspect of the present invention is a control method for a vehicle lamp. A vehicle lamp includes a first lamp unit providing a plurality of lamp functions different from each other, and a second lamp unit paired with the first lamp unit and providing a plurality of lamp functions. This method comprises the steps of detecting whether or not each lighting function of the first lighting unit operates normally; the step of controlling the normally operating portion of the first lighting unit, regardless of whether the lighting function of the second lighting unit paired with the malfunctioning lighting function of the first lighting unit operates normally; and controlling a second lighting unit to mimic the first lighting unit.

A vehicular lamp according to a third aspect of the present invention is configured to shift from a first presentation mode to a second presentation mode on condition that a predetermined operation is performed on the vehicle while the first presentation mode is being executed with the lighting unit. and a controller. The first effect mode is set in advance so that the lighting unit is lit in a manner different from the normal lighting of the lighting unit used while the vehicle is running. The second performance mode is set in advance so that the lighting unit is lit in a manner different from the normal lighting of the lighting unit used while the vehicle is running and the first performance mode, and is completed shorter than the first performance mode. .

According to this aspect, the first effect mode can provide so-called full-fledged normal effect lighting, while the second effect mode provides so-called simple effect lighting that ends shorter than the first effect mode. do. If the first presentation mode were simply canceled at the same time as the vehicle started to run, it would appear to have been cut off in the middle unlike the expected ending, and it would be difficult for the viewer to wipe out the unnatural impression. On the other hand, a first presentation is performed in response to a predetermined operation of the vehicle by the driver, for example, an operation performed by the driver inside the vehicle (such an operation may lead to the vehicle starting to run). If the mode is shifted to the simple second effect mode, the possibility that the effect lighting can be completed before the vehicle starts running increases. Therefore, it is expected that the transition from the first effect mode to the second effect mode can make it difficult for the viewer to feel uncomfortable, compared to the case where the first effect mode is simply interrupted.

The predetermined operation may be operation of the foot brake. Since the driver generally depresses the foot brake once before starting to run the vehicle while the vehicle is stopped, the operation of the foot brake indicates the probability that the driver will start running the vehicle. The operation of the foot brake can be said to be a typical example of operation based on the driver's intention to start driving. Therefore, by shifting from the first performance mode to the second performance mode in response to the operation of the foot brake, the performance lighting is completed before the vehicle starts running, compared to the case where the first performance mode is continued as it is. more likely to be made.

The control device may execute the first effect mode according to the effect instruction when the shift position is in the parking range. If the shift position is in the parking range, it is assumed that there is a higher possibility that the vehicle will continue to stop compared to other ranges. Therefore, by starting the effect lighting in the first effect mode on the condition that the vehicle is in the parking range, it can be expected that the possibility of the vehicle starting to run during execution of the first effect mode is reduced.

A lamp unit may be configured to provide a plurality of different lamp functions. Prior to the first presentation mode or during execution of the first presentation mode, the control device detects whether or not each lighting function of the lighting unit operates normally. , the third effect mode may be executed instead of the first effect mode. The third effect mode may be set in advance so that the lighting unit is lit in a manner different from the normal lighting of the lighting unit used while the vehicle is running, and the lighting function that does not operate normally is not used. . In this way, when a lamp function that does not operate normally is detected, the third effect mode that does not use this lamp function can be used. A fail-safe function can be provided for the vehicle lamp.

Another aspect of the present invention is a control device for a vehicle lamp. A vehicle lamp includes a lamp unit. The control device is configured to shift from the first effect mode to the second effect mode on condition that a predetermined operation to the vehicle is performed while the first effect mode is being executed. The first effect mode is set in advance so that the lighting unit is lit in a manner different from the normal lighting of the lighting unit used while the vehicle is running. The second performance mode is set in advance so that the lighting unit is lit in a manner different from the normal lighting of the lighting unit used while the vehicle is running and the first performance mode, and is completed shorter than the first performance mode. .

Yet another aspect of the present invention is a control method for a vehicle lamp. A vehicle lamp includes a lamp unit. This method includes shifting from the first presentation mode to the second presentation mode on condition that a predetermined operation is performed on the vehicle during execution of the first presentation mode. The first effect mode is set in advance so that the lighting unit is lit in a manner different from the normal lighting of the lighting unit used while the vehicle is running. The second performance mode is set in advance so that the lighting unit is lit in a manner different from the normal lighting of the lighting unit used while the vehicle is running and the first performance mode, and is completed shorter than the first performance mode. .

Arbitrary combinations of the above components, or conversions of the expressions of the present disclosure between methods, devices, systems, computer programs, etc. are also effective as aspects of the present invention.

According to the present invention, it is possible to provide the vehicle lamp with a fail-safe function. According to the present invention, it is possible to achieve both fail-safety and reduction of uncomfortable feeling for the viewer. According to the present invention, it is possible to provide a vehicular lamp capable of making it difficult for a viewer to have an unnatural impression when lighting for effect is finished.

1 is a block diagram of a vehicle lamp according to an embodiment; FIG. FIG. 5 is a diagram showing an example of a substitute lamp table according to the embodiment; FIG. 3(a) shows normal lighting of the lamp for comparison, FIG. 3(b) shows alternative lighting of the tail lamp using a stop lamp, and FIG. 3(c) shows a turn signal lamp. It is a figure which shows substitute lighting of a tail lamp. It is a figure which shows substitute lighting of a stop lamp. FIG. 5(a) shows alternative lighting of a turn signal lamp using a tail lamp, and FIG. 5(b) shows alternative lighting of a turn signal lamp using a stop lamp. 4 is a flowchart for explaining a control method for a vehicle lamp according to the embodiment; FIGS. 7A and 7B are diagrams showing an example of substitute lighting for a pair of lamps. FIG. 9 is a diagram showing another example of a substitute lamp table according to the embodiment; FIG. 9 is a diagram showing another example of a substitute lamp table according to the embodiment; FIG. 11 is a block diagram of a vehicle lamp according to a modified example; FIG. 7 is a block diagram of a vehicle lamp according to a second embodiment; FIGS. 12(a) and 12(b) relate to the second embodiment, and are diagrams showing examples of lamp area settings for the normal lighting mode and the substitute lighting mode, respectively. FIG. 10 is a diagram showing an example of substitute lighting in each display of a pair of lamp units according to the second embodiment; FIG. 11 is a block diagram of a vehicle lamp according to a third embodiment; 10 is a flowchart for explaining a method of controlling a vehicle lamp according to a third embodiment; 10 is a flowchart for explaining a method of controlling a vehicle lamp according to a third embodiment;

Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings. The embodiments are illustrative rather than limiting the invention, and not all features and combinations thereof described in the embodiments are necessarily essential to the invention. The same or equivalent constituent elements, members, and processes shown in each drawing are denoted by the same reference numerals, and duplication of description will be omitted as appropriate. In addition, the scale and shape of each part shown in each drawing are set for convenience in order to facilitate the explanation, and should not be construed as limiting unless otherwise mentioned. In addition, terms such as "first" and "second" used in this specification or claims do not represent any order or degree of importance, but are used to distinguish one configuration from another. is. Also, in each drawing, some of the members that are not important for explaining the embodiments are omitted.

(First embodiment)
FIG. 1 is a block diagram of a vehicle lamp 100 according to an embodiment. The vehicle lamp 100 is suitable as a marker lamp for vehicles such as automobiles. In this embodiment, a case where the vehicle lamp 100 is a rear combination lamp installed in the rear portion of the vehicle will be described as an example.

The vehicle lamp 100 includes a pair of a first lamp unit 110R and a second lamp unit 110L, and a lamp ECU (Electronic Control Unit) 200 that controls these lamp units 110. In addition, the vehicle is provided with a vehicle ECU 300 as a controller that centrally controls the entire vehicle or a part thereof. Vehicle ECU 300 may be a controller also called a BCM (Body Control Module). The ECU can be implemented by combining a processor (hardware) such as a CPU (Central Processing Unit) or a microcomputer and a software program executed by the processor (hardware).

In Figure 1, for convenience, communication lines are indicated by dashed arrows connecting functional blocks. The lamp ECU 200 can communicate with the vehicle ECU 300 through an in-vehicle network conforming to a network protocol such as CAN (Controller Area Network) or LIN (Local Interconnect Network), or other suitable communication network. The lamp ECU 200 can communicate with the lamp unit 110 through an appropriate communication network. Communication between the lighting ECU 200 and the vehicle ECU 300 and communication between the lighting ECU 200 and the lighting unit 110 may conform to different protocols, or may conform to the same protocol.

Also, in FIG. 1, for convenience, the power supply line is shown as a solid line connecting the functional blocks. The lamp ECU 200 and the vehicle ECU 300 are supplied with power from a power source 310 such as an onboard battery. The lamp ECU 200 supplies electric power to the lamp unit 110 . The lamp ECU 200 can also be regarded as a power source for the lamp unit 110 .

The first lamp unit 110R includes a plurality of first lamps providing different lamp functions, in this example, a tail lamp 120a, a stop lamp 120b, a turn signal lamp 120c, and a backup lamp 120d. Similarly, the second lamp unit 110L includes a plurality of second lamps 120a-120d that provide different lamp functions. The vehicle lamp 100 has first lamps and second lamps that provide the same lamp function and are paired with each other. arranged in clusters. The first lamp unit 110R may be a right rear combination lamp, and the second lamp unit 110L may be a left rear combination lamp.

Each of the first lamp unit 110R and the second lamp unit 110L includes a lighting circuit 130 for individually lighting the lamps 120a to 120d belonging thereto under the control of the lamp ECU 200. The lighting circuit 130 includes a lighting control IC (Integrated Circuit) (LED driver) capable of individually controlling the brightness and turning on/off of the light emitting elements (eg, LEDs) of the lamps 120a to 120d.

In this embodiment, the lighting circuit 130 is a lighting circuit common to the plurality of types of lamps 120a to 120d belonging to the lamp unit 110. This has the advantage that by using a common communication line and power supply line that connects the lighting circuit 130 to the lamp ECU 200, the communication lines and power supply lines for a plurality of types of lamps can be consolidated and the number of wires can be reduced. In addition, it becomes easy to light a plurality of types of lamps in cooperation with each other, and there is also the advantage of facilitating the realization of various lighting modes such as colorful lighting effects.

It should be noted that it is not essential that the lighting circuit 130 is a common lighting circuit. In one embodiment, the lamp unit 110 has an individual lighting circuit for each individual lamp, and each lighting circuit is connected to the lamp ECU 200 via an individual communication line and power supply line, and the corresponding lamp is controlled by the lamp ECU 200. may have a typical configuration, such as operating separately in the .

The lamp ECU 200 has a processor 210 and a memory 220 . The processor 210 includes a detection section 212 that detects an abnormality in the lighting unit 110 and a control section 214 that controls the lighting unit 110 . Detection unit 212 and control unit 214 are implemented in processor 210 by processor 210 executing a software program stored in memory 220 . Memory 220 may include non-volatile memory and/or volatile memory. In addition to the software programs, the memory 220 stores data necessary for the operation of the lamp ECU 200 and execution of the software programs (for example, a substitute lamp table 230, which will be described later), and data generated by executing the software programs.

It should be noted that the lamp ECU 200 may be configured to be able to update the software program and/or the data required for its execution, for example, by OTA (Over The Air) or wired communication.

The detection unit 212 is configured to detect whether the lamps 120a to 120d of each lamp unit 110 operate normally. The detection unit 212 may be configured to perform existing anomaly detection methods.

For example, the lamp unit 110 itself may have an abnormality detection function. The lighting control IC of the lighting circuit 130 has various anomaly detection functions such as a function of detecting an open fault or a short circuit of the light-emitting elements of the lamps 120a to 120d and a function of detecting anomalies of various circuit elements in the lighting circuit 130. May be implemented. The lamp ECU 200 may be configured to receive an abnormality detection signal from an abnormality detection function implemented in the lighting control IC of the lighting circuit 130 . The detection unit 212 may detect whether or not the lamps 120a to 120d of each lamp unit 110 operate normally based on the abnormality detection signal. For example, the detection unit 212 detects that each of the lamps 120a to 120d is operating normally when it does not receive an abnormality detection signal, and detects that the lamp is operating normally when it receives an abnormality detection signal indicating an abnormality in a specific lamp. It may be detected that it does not operate normally.

Alternatively, the lamp ECU 200 may directly detect an abnormality in the lamp. For example, the lamp ECU 200 may be configured to receive an output signal of an optical sensor that detects light from each of the lamps 120a-120d. The optical sensors are provided in the lamp units 110 corresponding to the respective lamps 120a to 120d, and are arranged inside or near the corresponding lamps so as to receive light from the lamps. The detection unit 212 may detect whether the lamps 120a to 120d of each lamp unit 110 operate normally based on the output signal of the optical sensor. As another example, the detection unit 212 may be configured to monitor the communication state of the communication line between the lamp unit 110 and the lamp ECU 200, and detect communication interruption of the communication line as an abnormality of the lamp.

The lamp ECU 200 is configured to receive vehicle information from the vehicle ECU 300, and control the plurality of lamps so that the lamps 120a to 120d of the lamp unit 110 are lit in the normal lighting mode based on the received vehicle information. be done. More specifically, the control unit 214 controls the lamp unit 110 according to the lighting instruction included in the received vehicle information. The control unit 214 determines whether or not the lighting fixtures 120a to 120d of the lighting fixture unit 110 can be lit, selects the lighting fixtures to be lit, and performs dimming control of the lighting fixtures to be lit (for example, the duty ratio of PWM (Pulse Width Modulation) dimming). calculation, calculation of the magnitude of the current value to be supplied to the light emitting element, etc.), and transmission of a command value for executing dimming control (for example, a duty ratio or a command value of the current value) to the lighting circuit 130. bear.

The vehicle information includes, for example, an instruction to turn on the tail lamp 120a generated according to the driver's light switch operation, an instruction to turn on the stop lamp 120b generated according to the driver's braking operation, and an instruction to turn on the stop lamp 120b according to the driver's turn switch operation. The generated information includes an instruction to turn on the turn signal lamp 120c, shift information indicating the shift position (for example, whether the shift position is reverse (R) or not), and the like.

The normal lighting mode of a certain lamp is the way of lighting determined for the original function of the lamp. For example, in the case of the tail lamp 120a, lighting with a predetermined brightness when the light switch is on corresponds to the normal lighting mode. In the case of the stop lamp 120b, lighting more brightly than the tail lamp 120a when the brake is operated corresponds to the normal lighting mode. In the case of the turn signal lamp 120c, blinking when the direction indicator switch is on corresponds to the normal lighting mode. In the case of the backup lamp 120d, lighting when the shift position is R corresponds to the normal lighting mode.

In this embodiment, when the detection unit 212 detects a lamp that does not operate normally, the control unit 214 selects a substitute lamp from among the lamps that operate normally and lights it in a substitute lighting mode, which will be described later in detail. to control the substitute lamps.

A substitute lighting mode is a lighting method that simulates a lighting fixture that does not operate normally. For example, the substitute lighting mode is determined such that the substitute lamp is lit with a brightness different from that of the normal lighting mode. For lamps that are lit in the normal lighting mode, the alternative lighting mode may be flashing. For lamps that blink in the normal lighting mode, the alternative lighting mode may be lighting.

FIG. 2 is a diagram showing an example of the substitute lamp table 230 according to the embodiment. In FIG. 2, options of lamps that can be used as substitutes for lamps 120a to 120d that do not operate normally are represented in a matrix format. Non-working fixtures are listed in the matrix rows and replacement fixtures are listed in the matrix columns. The light color of each lamp is added in parentheses.

The first row of the illustrated substitute lamp table 230 indicates that the stop lamp 120b or the turn signal lamp 120c is a candidate for the substitute lamp when the tail lamp 120a does not operate normally.

FIG. 3(a) shows normal lighting of the lamps 120a to 120d for comparison, FIG. 3(b) shows alternative lighting of the tail lamp 120a using the stop lamp 120b, and FIG. FIG. 12 is a diagram showing alternative lighting of the tail lamp 120a using the signal lamp 120c;

As shown in FIG. 3(a), when the lamps 120a to 120d operate normally, each lamp naturally operates to perform its own lamp function.

As shown in FIG. 3(b), when the tail lamp 120a does not operate normally, the tail lamp 120a is turned off and is not used. A stop lamp 120b is used as a substitute for the tail lamp 120a. That is, the stop lamp 120b also serves as the tail lamp 120a. Since the stop lamp 120b is normally lit brighter than the tail lamp 120a, when the tail lamp 120a is substituted with the stop lamp 120b, the light of the stop lamp 120b is dimmed. When the brightness of the stop lamp 120b is controlled by PWM dimming, the duty ratio of the stop lamp 120b is reduced in the substitute lighting mode compared to the normal lighting mode. When the brightness of the stop lamp 120b is controlled by the magnitude of the supplied current value, the current value is reduced in the substitute lighting mode compared to the normal lighting mode.

As shown in FIG. 3(c), instead of the stop lamp 120b, a turn signal lamp 120c may be used as a substitute for the tail lamp 120a. Since the blinking of the turn signal lamp 120c in normal use is brighter than the tail lamp 120a, when substituting the turn signal lamp 120c for the tail lamp 120a, the turn signal lamp 120c is dimmed and lit (not blinking). be done.

The second row of the substitute lamp table 230 in FIG. 2 indicates that the tail lamp 120a is used as a substitute lamp when the stop lamp 120b does not operate normally. FIG. 4 is a diagram showing alternative lighting of the stop lamp 120b. As shown, when stop lamp 120b is not operating properly, stop lamp 120b is extinguished and not used. In this case, contrary to FIG. 3(b), the stop lamp 120b is substituted by the increased brightness of the tail lamp 120a. When the brightness of the stop lamp 120b is controlled by PWM dimming, the duty ratio of the stop lamp 120b is increased in the substitute lighting mode compared to the normal lighting mode. When the brightness of the stop lamp 120b is controlled by the magnitude of the supplied current value, the current value is increased in the substitute lighting mode compared to the normal lighting mode.

The third row of the substitute lamp table 230 in FIG. 2 indicates that the tail lamp 120a or the stop lamp 120b is a candidate for the substitute lamp when the turn signal lamp 120c does not operate normally. However, when the tail lamp 120a and the stop lamp 120b are already lit normally, it may be avoided to use them as substitute lamps for the turn signal lamp 120c.

FIG. 5(a) is a diagram showing substitute lighting for the turn signal lamp 120c using the tail lamp 120a. When the turn signal lamp 120c does not operate normally, the turn signal lamp 120c is extinguished and not used. Tail lamps 120a will flash to simulate turn signal lamps 120c. The tail lamp 120a may be brightened and blinked. FIG. 5(b) is a diagram showing alternative lighting of the turn signal lamp 120c using the stop lamp 120b. The stop lamp 120b will flash to simulate the turn signal lamp 120c.

The fourth row of the substitute lamp table 230 in FIG. 2 indicates that the tail lamp 120a or the stop lamp 120b is a candidate for the substitute lamp when the backup lamp 120d does not operate normally. When the backup lamp 120d does not operate normally, the backup lamp 120d is turned off, and the tail lamp 120a or the stop lamp 120b is turned on instead. Similar to the substitution of the turn signal lamp 120c in the third row, when the tail lamp 120a and the stop lamp 120b are already lit normally, it may be avoided to substitute them for the backup lamp 120d.

In the substitute lamp table 230 of FIG. 2, the backup lamp 120d is not used as a substitute for other lamps. This is because the white lighting of the backup lamp 120d may cause surrounding other vehicles to misunderstand that the vehicle is moving backward or that an oncoming vehicle is approaching.

FIG. 6 is a flow chart explaining a control method for the vehicle lamp 100 according to the embodiment. This method is repeatedly executed by lamp ECU 200 at a predetermined cycle (for example, a cycle of several milliseconds to several tens of milliseconds).

First, the detection unit 212 detects whether each of the plurality of lamps 120a to 120d operates normally (S10). When all the lamps 120a to 120d operate normally (N of S10), the lamp ECU 200 operates in the normal lighting mode (S12). That is, based on the vehicle information received from vehicle ECU 300, control unit 214 controls the plurality of lamps so that each of lamps 120a to 120d of lamp unit 110 is lit in its normal lighting mode.

On the other hand, when a lamp that does not operate normally is detected (Y in S10), the lamp ECU 200 operates in the substitute lighting mode. If the lamp that has received the lighting instruction is a lamp that operates normally, the control unit 214 may light the lamp in the normal lighting mode in the substitute lighting mode as in the normal lighting mode.

However, when a lighting instruction is received for the detected lamp that does not operate normally, the control unit 214 selects a substitute lamp from the lamps that operate normally (S14). The control unit 214 selects a substitute lamp according to a substitute lamp table 230 as shown in FIG. 2, for example.

In this selection, the control unit 214 determines whether or not the candidate lighting fixture for the substitute lighting fixture is currently lighting normally. This may be selected as a substitute lamp. If the candidate lamp is normally lit, the control unit 214 does not have to select it as the substitute lamp. If there is another candidate lamp, the control unit 214 may similarly determine whether or not this candidate lamp is currently lighting normally, and determine whether or not it can be used as a substitute lamp. If there is no selectable substitute lighting fixture, the control unit 214 does not substitute lighting for the detected malfunctioning lighting fixture.

Subsequently, the control unit 214 performs control so that the selected substitute lamp is lit in the substitute lighting mode (S16). Various examples of alternative lighting aspects are described above.

In this way, when a certain lighting fixture does not operate normally, another lighting fixture that originally provides a different lighting fixture function can be used as a substitute for this lighting fixture. In this manner, different types of lamps can be mutually redundant, and the vehicle lamp 100 can be provided with a fail-safe function.

In this embodiment, when a lighting instruction for the substitute lamp is received based on the vehicle information while the substitute lamp is being lit in the substitute lighting mode, the control unit 214 switches from the substitute lighting mode to the normal lighting mode. Alternatively, the substitute lamp may be controlled. In this way, the substitute lamp can be returned to normal lighting in response to the lighting instruction, and the lamp can be used in its original role. For example, assuming that the brake operation is performed while the stop lamp 120b is used as a substitute for the tail lamp 120a, in response to this braking operation, the stop lamp 120b substitutes for the tail lamp 120a (that is, the tail lamp 120a is simulated). The dimming of the stop lamp 120b to be performed) can be terminated, and the stop lamp 120b can be lit at its original brightness.

By the way, in general, paired lamps (for example, a pair of left and right lamps for the same function) both light in the same way in many situations. Assuming a case where one of these pair of lamps performs substitute lighting while the other lamp continues normal lighting, both lamps take different lighting states, resulting in a lack of balance.

FIGS. 7(a) and 7(b) are diagrams showing an example of substitute lighting for a pair of lamps. These figures schematically show the tail lamps 120a and the stop lamps 120b of the first lamp unit 110R and the second lamp unit 110L, respectively.

Originally, both tail lamps 120a should be turned on by the lighting instruction of the tail lamp 120a, but in FIG. 7A, the tail lamp 120a of the first lamp unit 110R does not operate normally and is turned off, and the stop lamp 120b is turned on instead. are doing. The tail lamp 120a of the second lamp unit 110L is turned on for normal operation, and the stop lamp 120b is turned off. Such discrepancies in lighting in a pair of fixtures may confuse or confuse a viewer. It is desirable to avoid such a situation.

Therefore, in the embodiment, the lamp ECU 200 detects whether or not each of the first lamps of the first lamp unit 110R operates normally. A substitute lamp is selected from one lamp, and the substitute lamp is controlled so as to be lit in a substitute lighting mode simulating the first lamp which does not operate normally. At the same time, the lamp ECU 200 turns off the second lamp of the second lamp unit 110L, which is paired with the malfunctioning first lamp, regardless of whether the second lamp operates normally or not, and uses it as a substitute lamp. Control is performed so that the paired second lamps are lit in the substitute lighting mode.

Similarly, the lamp ECU 200 detects whether or not each of the second lamps of the second lamp unit 110L operates normally. A substitute lamp is selected from the above, and the substitute lamp is controlled so as to be lit in a substitute lighting mode simulating the second lamp which does not operate normally. At the same time, the lamp ECU 200 turns off the first lamp of the first lamp unit 110R, which is paired with the malfunctioning second lamp, regardless of whether the first lamp operates normally or not, and the lamp is used as a substitute lamp. Control is performed so that the paired first lamps are lit in the substitute lighting mode.

FIG. 7(b) shows this applied to the example shown in FIG. 7(a). As illustrated, the tail lamp 120a of the first lamp unit 110R does not operate normally and is turned off, and the stop lamp 120b is turned on instead. The tail lamp 120a of the second lamp unit 110L is turned off even though it operates normally, and the stop lamp 120b of the second lamp unit 110L is turned on as a substitute for the tail lamp 120a.

In this way, when one of the paired lamps is used for substitute lighting, the other of the paired lamps is also interlocked and switched to substitute lighting. It is possible to match the lighting states of the paired lamps, thereby eliminating or alleviating discomfort caused by a mismatch between the two.

FIG. 8 is a diagram showing another example of the substitute lamp table 230 according to the embodiment. The first lighting unit 110R and the second lighting unit 110L may each include a rear fog lamp 120e, and the substitute lighting table 230 shown has been expanded to include the rear fog lamp 120e. The light color of the rear fog lamp 120e is red, which is the same color as the tail lamp 120a and the stop lamp 120b, so the rear fog lamp 120e is suitable as a substitute for these lamps.

Looking at the rightmost column of the substitute lamp table 230, the rear fog lamp 120e can be used as a substitute lamp for the tail lamp 120a, the stop lamp 120b, the turn signal lamp 120c, and the backup lamp 120d. When the tail lamp 120a does not operate normally, the rear fog lamp 120e is dimmed and lit as a substitute for the tail lamp 120a. When the stop lamp 120b does not operate normally, the rear fog lamp 120e is turned on as a substitute for the stop lamp 120b at a lower intensity than usual. When the turn signal lamp 120c does not operate normally, the rear fog lamp 120e blinks as a substitute for the turn signal lamp 120c. When the backup lamp 120d does not operate normally, the rear fog lamp 120e is turned on as a substitute for the backup lamp 120d. When the rear fog lamp 120e is already lit normally, it may be avoided to use it as a substitute lamp for the turn signal lamp 120c and the backup lamp 120d.

Also, the bottom row of the substitute lamp table 230 indicates that the tail lamp 120a is used as a substitute lamp when the rear fog lamp 120e does not operate normally. When the tail lamp 120a is already lit normally, it may be avoided to use it as a substitute lamp for the rear fog lamp 120e.

FIG. 9 is a diagram showing another example of the substitute lamp table 230 according to the embodiment. The substitute luminaire table 230 may be adapted based on national or local regulatory requirements. For example, there are regions (for example, North America) where the red turn signal lamp 120c is allowed, and the illustrated substitute lamp table 230 uses the red turn signal lamp 120c. In this case, since the turn signal lamp 120c has the same color as the tail lamp 120a and the stop lamp 120b, it is advantageous in that the turn signal lamp 120c can be easily substituted for these lamps.

Looking at the row of turn signal lamps 120c in the substitute lamp table 230, the turn signal lamp 120c can be used as a substitute lamp for the tail lamp 120a, the stop lamp 120b, and the backup lamp 120d. When the tail lamp 120a does not operate normally, the turn signal lamp 120c is dimmed and lit as a substitute for the tail lamp 120a. When the stop lamp 120b does not operate normally, the turn signal lamp 120c is turned on as a substitute for the stop lamp 120b. When the backup lamp 120d does not operate normally, the turn signal lamp 120c is turned on as a substitute for the backup lamp 120d. When the turn signal lamp 120c is already normally lit (that is, flashing), it may be avoided to use it as a substitute lamp for the backup lamp 120d.

The substitute lamp table 230 shown in FIG. 9, like the substitute lamp table 230 of FIG. 8, may be expanded to include a rear fog lamp 120e, and the rear fog lamp 120e is used as a substitute lamp for the turn signal lamp 120c. good too.

Also, in some embodiments, the replacement lighting table 230 may be expanded to include a high mounted stop lamp. Since the high-mounted stop lamp also lights in the same red color as the tail lamp 120a and the stop lamp 120b, it can be easily used as a substitute for these lamps. For example, when the end of a high mount stop lamp is arranged close to the lamp unit 110, this high mount stop lamp end is used to substitute for the other lamp instead of the stop lamp 120b. may

FIG. 10 is a block diagram of a vehicle lamp 100 according to a modification. Each of the first lamp unit 110R and the second lamp unit 110L may have a composite configuration comprising a display 140 in addition to the lamps 120a-120d. Display 140 can display various images such as characters and graphics under the control of lamp ECU 200 or vehicle ECU 300 . Therefore, the display 140 may be used as a substitute lamp when one of the lamps 120a to 120d of each lamp unit 110 malfunctions.

Therefore, when the detection unit 212 detects that any lamp of one of the lamp units 110 does not operate normally, the control unit 214 may control the display 140 of the lamp unit 110 as a substitute lamp. The control unit 214 controls the display 140 so that the display 140 displays an image representing the malfunctioning lamp function when receiving a lighting instruction for the detected lamp that does not operate normally, thereby providing the lamp function. may In this manner, the display 140 can be used to provide the vehicle lamp 100 with a fail-safe function.

In this case, as described above with reference to FIGS. 7A and 7B, when one of the lamp units 110 switches to the substitute lighting mode, the lamp ECU 200 also interlocks the other lamp unit 110 with the substitute lighting mode. You may switch to lighting mode. That is, the lamp ECU 200 detects whether or not each of the first lamps 120a to 120d of the first lamp unit 110R operates normally. The display 140 of the first lighting unit 110R may be controlled to simulate the function. At the same time, the lamp ECU 200 turns off the second lamp of the second lamp unit 110L paired with the malfunctioning lamp of the first lamp unit 110R regardless of whether the second lamp works normally. , the display 140 of the second lamp unit 110L may be controlled to simulate the lamp function of the second lamp. In this way, the lighting states of the paired

lamp units

110R and 110L can be matched, and discomfort due to mismatch between the two can be eliminated or alleviated.

The display 140 may not only be used as a substitute lamp when one of the lamps 120a to 120d of each lamp unit 110 malfunctions, but may also provide at least one lamp function during normal use.

The display 140 of the first lamp unit 110R and the display 140 of the second lamp unit 110L may be separate displays. Alternatively, the display 140 of each lighting unit 110 may be part of one common large display, eg, part of that common display proximate each lighting unit 110 . Similarly, a first display 140R and a second display 140L, which will be described later, may be individual displays, or may be part of one common large display.

(Second embodiment)
FIG. 11 is a block diagram of the vehicle lamp 100 according to the second embodiment. The vehicle lamp 100 includes a first display 140R as a first lamp unit 110R and a second display 140L as a second lamp unit 110L.

Each display 140 includes a display drive circuit (display driver IC) 142 and a display panel 144, and has a plurality of lamp functions, in this example, lamps corresponding to a tail lamp 120a, a stop lamp 120b, a turn signal lamp 120c, and a backup lamp 120d. configured to provide functionality. A plurality of areas separated from each other are defined on the display panel 144, and each lamp function is assigned to a corresponding area (hereinafter also referred to as a lamp area). Such lamp region settings can be pre-stored in the memory 220 of the lamp ECU 200, or can be changed as needed. According to these lamp region settings under the control of the lamp ECU 200, the display drive circuit 142 controls the display 140 such that an image representing each lamp function is displayed on the display panel 144. FIG.

The lamp ECU 200 includes a processor 210 and a memory 220, as in the first embodiment. Processor 210 includes a detection unit 212 that detects an abnormality in display 140 and a control unit 214 that controls display 140 .

The detection unit 212 is configured to detect whether each lamp region on the display 140 operates normally. The detection unit 212 may be configured to perform existing anomaly detection methods. For example, the display drive circuit 142 may have an abnormality detection function, and a function for detecting an abnormality such as malfunction of each pixel on the display panel 144 may be implemented. The lamp ECU 200 may be configured to receive an anomaly detection signal from an anomaly detection function implemented in the display drive circuit 142 . The abnormality detection signal may include information indicating the position of the malfunctioning pixel. The detection unit 212 may detect whether or not each lamp area on the display panel 144 operates normally based on the lamp area setting and the abnormality detection signal. The detection unit 212 may detect that the lamp region does not operate normally when a malfunctioning pixel is included in the lamp region.

As in the first embodiment, when it is detected that all lamp areas on the display 140 operate normally, the lamp ECU 200 operates in the normal lighting mode. That is, based on the vehicle information received from vehicle ECU 300, control unit 214 controls display 140 so that an image representing each lamp function is displayed on display panel 144 in accordance with the lamp area setting for the normal lighting mode.

When a lamp region that does not operate normally is detected on the display 140, the control unit 214 operates in a substitute lighting mode. In this case, the controller 214 controls the other working lighting areas on the display 140 such that all lighting functions, including the lighting function assigned to the detected malfunctioning lighting area, are provided. do. For this reason, the lamp ECU 200 has a lamp area setting for the alternative lighting mode as well as a lamp area setting for the normal lighting mode. Based on the vehicle information received from vehicle ECU 300, control unit 214 controls display 140 so that an image representing each lamp function is displayed on display panel 144 in accordance with the lamp area setting for the substitute lighting mode.

FIGS. 12(a) and 12(b) relate to the second embodiment, and are diagrams showing examples of lamp region settings for each of the normal lighting mode and the substitute lighting mode. FIG. 12(a) illustrates the lamp area setting for the normal lighting mode, and FIG. 12(b) illustrates the lamp area setting for the alternative lighting mode.

In the lamp region setting for the normal lighting mode, a plurality of lamp functions, in this example, a tail lamp 120a, a stop lamp 120b, a turn signal lamp 120c, and a backup lamp 120d, are divided and set on the display panel 144.

As an example of setting the lamp area for the substitute lighting mode, a case where the lamp area of the tail lamp 120a does not operate normally is shown here. The lamp area used as the tail lamp 120a in the lamp area setting for the normal lighting mode is not used in the lamp area setting for the substitute lighting mode. In the rest of the display panel 144 that operates normally, a plurality of lamp functions, namely tail lamp 120a, stop lamp 120b, turn signal lamp 120c, and backup lamp 120d, are reset.

Similarly, it is possible to preset the lamp area setting for the substitute lighting mode used when the lamp areas of the stop lamp 120b, turn signal lamp 120c, and backup lamp 120d do not operate normally.

Thus, in the second embodiment, similarly to the first embodiment, the lamp ECU 200 detects whether or not each lamp function of the lamp unit 110 operates normally, If detected, the normally operating portion of the lighting unit 110 is controlled to simulate the malfunctioning lighting function. Thus, the malfunctioning lamp function in the lamp unit 110 is replaced by the rest of the parts that operate normally. A fail-safe function can be provided for the vehicle lamp 100 .

Also in the second embodiment, as described above with reference to FIGS. 7A and 7B, when one of the lamp units 110 switches to the substitute lighting mode, the lamp ECU 200 controls the other lamp unit 110 as well. You may switch to substitute lighting mode in conjunction. That is, the lamp ECU 200 ensures that the lamp functions of the second lamp unit 110L (or the first lamp unit 110R) paired with the lamp functions that do not operate normally of the first lamp unit 110R (or the second lamp unit 110L) operate normally. The second lighting unit 110L (or the first lighting unit 110R) may be controlled to mimic the first lighting unit 110R (or the second lighting unit 110L), whether or not to do so.

FIG. 13 is a diagram showing an example of substitute lighting in each display 140 of a pair of lamp units 110 according to the second embodiment. As in the example of FIG. 12, the first display 140R is switched to the lamp area setting for the substitute lighting mode because the lamp area of the tail lamp 120a does not operate normally. In this case, the lamp ECU 200 also interlocks the second display 140L with the first display 140R and switches to the lamp area setting for the substitute lighting mode. The lamp region of the tail lamp 120a of the second display 140L is turned off regardless of whether it operates normally, and each lamp function is reset to the remaining region of the second display 140L according to the lamp region setting for the substitute lighting mode. ing.

In this way, the lighting states of the

displays

140R and 140L of the paired

lamp units

110R and 110L can be matched, and the discomfort caused by the mismatch between the two can be eliminated or alleviated.

(Third embodiment)
FIG. 14 is a block diagram of the vehicle lamp 100 according to the third embodiment. The vehicle lamp 100 is suitable as a marker lamp for vehicles such as automobiles. In this embodiment, a case where the vehicle lamp 100 is a rear combination lamp installed in the rear portion of the vehicle will be described as an example.

In FIG. 14, communication lines are indicated by dashed arrows connecting functional blocks for convenience. The lamp ECU 200 can communicate with the vehicle ECU 300 through an in-vehicle network conforming to a network protocol such as CAN (Controller Area Network) or LIN (Local Interconnect Network), or other suitable communication network. The lamp ECU 200 can communicate with the lamp unit 110 through an appropriate communication network. Communication between the lighting ECU 200 and the vehicle ECU 300 and communication between the lighting ECU 200 and the lighting unit 110 may conform to different protocols, or may conform to the same protocol.

In addition, in FIG. 14, the power supply line is indicated by a solid line connecting the functional blocks for convenience. The lamp ECU 200 and the vehicle ECU 300 are supplied with power from a power source 310 such as an onboard battery. The lamp ECU 200 supplies electric power to the lamp unit 110 . The lamp ECU 200 can also be regarded as a power source for the lamp unit 110 .

The lamp ECU 200 has a processor 210 and a memory 220 . The processor 210 includes a detection section 212 that detects an abnormality in the lighting unit 110 and a control section 214 that controls the lighting unit 110 . Detection unit 212 and control unit 214 are implemented in processor 210 by processor 210 executing a software program stored in memory 220 . Memory 220 may include non-volatile memory and/or volatile memory. In addition to the software programs, the memory 220 stores data necessary for the operation of the lamp ECU 200 and execution of the software programs (for example, first to third performance modes to be described later), and data generated by the execution of the software programs. Stored.

It should be noted that the lamp ECU 200 may be configured to be able to update the software program and/or the data required for its execution, for example, by OTA (Over The Air) or wired communication. For example, the lighting mode of the lighting unit 110 in each of the first to third production modes can be updated.

The lamp ECU 200 is configured to receive vehicle information from the vehicle ECU 300 and control the lamps 120a to 120d of the lamp unit 110 based on the received vehicle information. More specifically, the control unit 214 selects one of the plurality of lamps 120a to 120d according to the lighting instruction included in the received vehicle information, and outputs a control signal for controlling the selected lamp. It is generated and supplied to the lighting circuit 130 of the lamp unit 110 .

The vehicle information includes, for example, an instruction to turn on the tail lamp 120a generated according to the driver's operation of the light switch, an instruction to turn on the stop lamp 120b generated according to the driver's operation of the foot brake, and an instruction to turn on the stop lamp 120b according to the driver's operation of the direction indicator switch. and shift information indicating the shift position (for example, whether the shift position is reverse (R) or not). The vehicle information includes information necessary for effect lighting of the vehicle lamp 100, for example, effect instructions to the vehicle lamp 100, vehicle speed, and a brake operation signal indicating operation of the foot brake (a stop lamp lighting instruction is a brake operation signal). may be regarded as a signal).

The control unit 214 determines whether or not the lighting fixtures 120a to 120d of the lighting fixture unit 110 can be lit, selects the lighting fixtures to be lit, and performs dimming control of the lighting fixtures to be lit (for example, the duty ratio of PWM (Pulse Width Modulation) dimming). calculation, calculation of the magnitude of the current value to be supplied to the light emitting element, etc.), and transmission of a command value for executing dimming control (for example, a duty ratio or a command value of the current value) to the lighting circuit 130. bear.

Therefore, when the vehicle information includes an instruction to turn on the tail lamp 120a, the control unit 214 turns on the tail lamp 120a with a predetermined brightness. When the vehicle information includes an instruction to turn on the stop lamp 120b, the control unit 214 lights the stop lamp 120b brighter than the tail lamp 120a. When the vehicle information includes an instruction to turn on the turn signal lamp 120c, the control unit 214 blinks the turn signal lamp 120c. When the vehicle information includes shift information indicating that the shift position is reverse (R), control unit 214 lights backup lamp 120d.

In addition, the vehicle lamp 100 is configured so as to be able to perform lighting effects different from normal lighting as described above while the vehicle is stopped. Dramatic lighting refers to a characteristic lighting mode (hereinafter also referred to as “directive mode”) for providing a visual effect to one or more of the various lighting fixtures mounted on the vehicle, such as headlights and various indicator lights. ) to light up. Typically, a plurality of types of lamps providing different functions are lit while the vehicle is stopped (preferably parked) in a presentation mode that is not performed while the vehicle is running. For example, some or all of the lamps may be lit or blinked at the same time, or may be lit or blinked in order. A presentation such as an animation may be executed using a plurality of types of lighting fixtures, such as sequential lighting over a plurality of types of lighting fixtures. In this embodiment, the effect lighting using the rear combination lamps will be described as an example.

The lamp ECU 200 is configured to receive vehicle information from the vehicle ECU 300 and to perform effect lighting of the lamp unit 110 based on the received vehicle information. More specifically, the control unit 214 generates a control signal for controlling each of the lamps 120a to 120d of the lamp unit 110 according to the effect instruction included in the received vehicle information, and sends the control signal to the lighting circuit 130 of the lamp unit 110. give.

The effect instruction may be generated by the vehicle ECU 300 in response to the driver (or other occupant) unlocking or locking the door locks of the vehicle. A scene in which the driver is outside the vehicle and is about to get into the vehicle or a scene in which the driver has just gotten off the vehicle is assumed for the generation of such an effect instruction. Alternatively, an effect start switch may be installed in the vehicle so that the driver can operate it in the vehicle, and the effect instruction may be generated by the vehicle ECU 300 in response to the driver's operation of the effect start switch. Scenes in which the driver will greet people outside the vehicle and use the effect lighting to make a visual impression are envisioned. The production start switch may be a physical operation tool such as an operation button, or may be a virtual operation button set on an operation panel such as a touch panel display. Alternatively, the effect instruction may be generated by the driver operating a portable terminal carried by the driver, and vehicle ECU 300 may receive the effect instruction from the portable terminal.

It should be noted that a plurality of production modes may be set in advance in order to provide different production lighting according to different scenes. The lighting ECU 200 may select one performance mode from a plurality of performance modes based on the vehicle information received from the vehicle ECU 300, and control the lighting unit 110 to execute the selected performance mode. The vehicle information may include information for selecting an effect mode according to the scene (for example, information indicating what kind of driver's operation the effect instruction was generated in response to).

Although the details will be described later, the lamp ECU 200 is configured to shift from the first effect mode to the second effect mode on condition that a predetermined operation to the vehicle is performed while the first effect mode is being executed. The first effect mode is set in advance so that the lighting unit 110 is lit in a manner different from the normal lighting of the lighting unit 110 used while the vehicle is running. The second effect mode is set in advance so that the lamp unit 110 is lit in a manner different from the normal lighting of the lamp unit 110 used while the vehicle is running and the first effect mode, and is completed shorter than the first effect mode. be done. The first effect mode can provide so-called full-fledged normal effect lighting, while the second effect mode provides so-called simple effect lighting that ends shorter than the first effect mode.

FIG. 15 is a flowchart for explaining a control method for the vehicle lamp 100 according to the third embodiment. This method is executed by the lamp ECU 200 when the lamp ECU 200 receives an effect instruction from the vehicle ECU 300 .

First, it is determined by the control unit 214 whether or not the condition for starting lighting of the effect is satisfied (S20). Based on the vehicle information received from vehicle ECU 300, control unit 214 determines whether or not the start condition is satisfied. The start condition may include that the shift position is in the parking range in addition to receiving the effect instruction. If the shift position is in the parking range, it is assumed that there is a higher possibility that the vehicle will continue to stop compared to other ranges. Therefore, by starting the effect lighting in the first effect mode on the condition that the vehicle is in the parking range, it can be expected that the possibility of the vehicle starting to run during execution of the first effect mode is reduced. Furthermore, the starting condition may include that the vehicle is stopped (that is, the vehicle speed is zero). This ensures that the effect lighting is performed only when the vehicle is stopped.

If the conditions for starting the effect lighting are not satisfied (No in S20), the control unit 214 terminates this process without executing the effect lighting. In this case, the vehicle is running or there is a high probability that the vehicle will start running soon, so the effect instruction is ignored and the effect lighting is not performed.

If the condition for starting the effect lighting is satisfied (Yes in S20), the control unit 214 controls the lamp unit 110 to execute the first effect mode (S22). In this case, for example, the lighting unit 110 is lit according to the preset first effect mode such that the tail lamp 120a and the turn signal lamp 120c are sequentially lit.

During the execution of the first effect mode, the control unit 214 determines whether or not the transition condition for the effect mode is satisfied based on the vehicle information (S24). The transition condition includes performing a predetermined operation on the vehicle. In this embodiment, the predetermined operation is operation of the footbrake. Also, the transition condition may include that the shift position remains in the parking range.

When the transition condition is not satisfied (No in S24), that is, when the foot brake is not operated, the control section 214 continues the first effect mode. In this case, the control unit 214 repeatedly re-determines the transition condition at a predetermined cycle (for example, a cycle of several milliseconds to several tens of milliseconds) (S24). On the other hand, if the transition condition is satisfied (Yes in S24), that is, if the foot brake is operated, the control section 214 controls the lighting unit 110 to transition from the first effect mode to the second effect mode. (S26). The second effect mode is executed, and this process ends.

The vehicle lamp 100 returns to normal lighting after the second effect mode ends. Therefore, when the foot brake is operated, the stop lamp 120b does not turn on by immediately interrupting the effect lighting. If the foot brake operation is continued when the second effect mode ends, the stop lamp 120b is lit at this point.

As long as the second effect mode ends shorter than the first effect mode, various lighting modes can be adopted. For example, the second effect mode may be a unique lighting mode different from the first effect mode, and may be set so as to be evaluated as unnatural and difficult to see for viewers.

Alternatively, the second effect mode may be set in a manner different from the first effect mode based on the first effect mode. For example, in the second effect mode, after the transition from the first effect mode to the second effect mode, the remaining part of the first effect mode is faded out, that is, by gradually darkening the brightness and extinguishing the light. It may be finished in a shorter time than one production mode. Alternatively, the second effect mode ends shorter than the first effect mode by executing the remaining part of the first effect mode after the mode transition time at a higher speed than when the first effect mode is executed. There may be.

As yet another example, in the first production mode, one or a plurality of interruption points may be set in advance that are evaluated as unlikely to appear unnatural to the viewer even if the mode is interrupted. The second effect mode may end shorter than the first effect mode by interrupting the first effect mode at an interruption point that comes immediately after the mode transition point. For example, the lighting unit 110 has a large number of light-emitting elements aligned left and right, and in the first presentation mode, these light-emitting elements are first sequentially lit from the left end to the right end, and then sequentially lit in the opposite direction from the right end to the left end. If so, a break point may be set between the first left-to-right sequential lighting and the next right-to-left sequential lighting.

According to this embodiment, as described above, during execution of the first effect mode, the first effect mode shifts to the second effect mode on condition that a predetermined operation to the vehicle, for example, the operation of the foot brake, is performed. Since the first effect mode is shifted to the simple second effect mode in response to an operation that may cause the vehicle to start running, such as the operation of the foot brake, the effect lighting is completed before the vehicle starts running. more likely to be made. Compared to the case where the first effect mode is interrupted immediately, it is expected that the viewer will be less likely to feel discomfort.

A predetermined operation that is a condition for transitioning to the production mode may be release of the parking brake. Like the operation of the foot brake, the release of the parking brake is also an operation based on the driver's intention to start driving, and it can be said that it represents the probability that the driver will start driving the vehicle. Therefore, by shifting from the first performance mode to the second performance mode in response to the release of the parking brake, the lighting of the performance is completed before the vehicle starts running, compared to the case where the first performance mode is continued as it is. more likely to be made.

In the method shown in FIG. 15, the condition for starting the effect lighting may include that the foot brake is not operated (that is, the brake operation signal is not received). When the start condition is satisfied, that is, when an effect instruction is received, the shift position is in the parking range, and the foot brake is not operated, the control unit 214 executes the first effect mode. When the start condition is not satisfied because the foot brake is operated, the control unit 214 may execute the second effect mode instead of the first effect mode.

Also, in parallel with the method shown in FIG. 15, the control unit 214 may repeatedly determine whether or not an interruption condition for immediately interrupting lighting of the effect is satisfied. The suspension condition may include, for example, that the shift position has been switched from parking range to drive range (or reverse range). Interruption conditions may include the occurrence of vehicle speed (that is, the vehicle speed becomes non-zero). When the interruption condition is not satisfied, the control unit 214 may continue the effect mode being executed (for example, the first effect mode or the second effect mode). When the interruption condition is satisfied, the control unit 214 may interrupt the effect mode being executed. In this way, the continuation of the presentation while the vehicle is running is legally unacceptable, but this can be avoided.

By the way, if any of the lamps involved in the lighting of the effect does not operate normally, the lighting of the lighting cannot be performed as set, and the appearance is not good. Therefore, in this embodiment, the lamp ECU 200 detects whether or not each lamp function of the lamp unit 110 operates normally prior to the first effect mode or during execution of the first effect mode. When a lamp function not to be used is detected, the third effect mode may be executed instead of the first effect mode. The third effect mode may be set in advance so that the lighting unit 110 is lit in a manner different from the normal lighting of the lighting unit 110 used while the vehicle is running, and the lighting function that does not operate normally is not used. good. In this way, when a lamp function that does not operate normally is detected, the third effect mode that does not use this lamp function can be used. A fail-safe function can be provided for the vehicle lamp 100 .

FIG. 16 is a flowchart for explaining a control method for the vehicle lamp 100 according to the third embodiment. This method is repeatedly executed by lamp ECU 200 at a predetermined cycle (for example, a cycle of several milliseconds to several tens of milliseconds).

As shown in FIG. 16, first, the detection unit 212 detects whether each of the plurality of lamps 120a to 120d operates normally (S30). When all the lamps 120a to 120d operate normally (No in S30), the lamp ECU 200 selects the first effect mode (S32). In this case, when the lamp ECU 200 receives an effect instruction thereafter, the selected first effect mode is executed according to the method shown in FIG.

On the other hand, when a lamp that does not operate normally is detected (Yes in S30), the lamp ECU 200 selects the third effect mode (S34). In this case, when the lamp ECU 200 subsequently receives the effect instruction and executes the method shown in FIG. 15, the lamp ECU 200 executes the selected third effect mode instead of the first effect mode. Alternatively, if the first effect mode is being executed, the lamp ECU 200 may switch from the first effect mode to the third effect mode. The lamp ECU 200 may shift the third effect mode to the second effect mode on condition that a predetermined operation to the vehicle, for example, a foot brake operation, is performed while the third effect mode is being executed.

Since a plurality of types of lamps are used in the first production mode, a third production mode is set in advance for each lamp in which the lamp is not used. That is, a plurality of third effect modes are prepared. As an example, when the tail lamp 120a and the turn signal lamp 120c are used in the first production mode, there are two third production modes, that is, in preparation for the failure of the tail lamp 120a, the tail lamp 120a is not used and other lamps (for example, backup A third production mode in which the lamp 120d) is substituted, and another third production mode in which the turn signal lamp 120c is not used in preparation for failure of the turn signal lamp 120c and is substituted with another lamp (for example, the backup lamp 120d) are prepared. may be

The present invention is not limited to the above-described embodiments and modifications, but may be combined with the embodiments and modifications, or added with further modifications such as various design changes based on the knowledge of those skilled in the art. Embodiments and modifications in which such combinations or further modifications are added are also included in the scope of the present invention. The above-described embodiments and modifications, and new embodiments resulting from combinations of the above-described embodiments and modifications with the following modifications, combine the effects of the combined embodiments, modifications, and further modifications. Have.

The substitute lighting mode may be determined to light the substitute lamp in a color different from the normal lighting mode determined for the original function of the substitute lamp. To achieve this, the lamp may be configured to allow multi-color light emission, for example, a plurality of light-emitting elements that emit light in different colors (e.g., each of the three primary colors red, green, and blue). three types of light-emitting elements that emit light) may be provided. In this way, two types of lamps that are lit in different colors in normal use can be used as substitute lamps for each other. For example, the backup lamp 120d may be configured to normally light in white and light in red as a substitute lighting fixture, and the tail lamp 120a may normally light in red and light in white as a substitute lighting fixture. good.

In the above-described embodiment, the case where the vehicle lamp 100 is a rear lamp is described as an example, but the installation location of the vehicle lamp 100 with the fail-safe function according to the present invention does not matter. Therefore, the vehicle lamp 100 may be a vehicle lamp installed in the front part of the vehicle or other parts. The vehicle lamp 100 is not limited to the lamps 120a to 120e exemplified in the above-described embodiments, and may be various vehicle indicator lamps such as clearance lamps, daytime running lamps, cornering lamps, front fog lamps, or other vehicle lamps. It may be a lamp.

Regarding the third embodiment, for example, the lighting unit 110 may include not only the above-described tail lamp 120a, stop lamp 120b, turn signal lamp 120c, and backup lamp 120d, but also other indicator lamps such as rear fog lamps. may be performed using these lamps.

The vehicle lamp 100 may include a third lamp unit different from the first lamp unit 110R and the second lamp unit 110L, and may control these lamp units for dramatic lighting. The third lighting unit may be, for example, a high mounted stop lamp or other lighting unit provided at the rear of the vehicle.

In the above-described embodiment, the case where the vehicle lamp 100 is a rear lamp is described as an example, but the installation location of the vehicle lamp according to the embodiment does not matter. Therefore, the vehicle lamp 100 may be a vehicle lamp installed in the front part of the vehicle or other parts. The vehicle lamp 100 is not limited to the lamps 120a to 120d exemplified in the above-described embodiments, and may be various vehicle indicator lamps such as clearance lamps, daytime running lamps, cornering lamps, front fog lamps, or other vehicle lamps. It may be a lamp.

In the above-described embodiment, the lamp unit 110 takes the form of including a plurality of individual lamps (for example, a plurality of indicator lamps) each providing a different lamp function, but this is not the only option. For example, the lighting unit 110 may comprise a display that provides a plurality of different lighting functions, and a plurality of distinct regions may be defined on the display, each lighting function being assigned to a corresponding region. . For example, four areas may be defined on the display and assigned to each of the tail lamps 120a, the stop lamps 120b, the turn signal lamps 120c, and the backup lamps 120d. Alternatively, the lighting unit 110 may be a composite type combining at least one individual lighting and a display assigned at least one lighting function.

In the above-described embodiment, the case where the control device that controls the vehicle lamp 100 is the lamp ECU 200 has been described as an example, but the present invention is not limited to this. The control device may be configured to control not only the lamps 120a-120e but also other electrical components mounted on the vehicle. The control device may be a control device, also called a zone ECU, that controls all or part of various electrical components arranged in a specific zone when the vehicle is divided into a plurality of zones. . In addition to lighting fixtures, electrical equipment includes wipers, back door openers, seat heaters, glass hatches, rear window defoggers, back cameras, back camera sensor cleaners, snow melting heaters, fuel lid motors, rear door lock motors, power windows, and millimeter wave radars. can include sensors such as

Although the present invention has been described using specific terms based on the embodiment, the embodiment only shows one aspect of the principle and application of the present invention, and the embodiment does not include the claims. Many variations and rearrangements are permissible without departing from the spirit of the invention as defined in its scope.

The present invention can be used in the fields of vehicle lamps, vehicle lamp control devices, and control methods.

100 vehicle lighting, 110R first lighting unit, 110L second lighting unit, 120a tail lamp, 120b stop lamp, 120c turn signal lamp, 120d backup lamp, 120e rear fog lamp, 200 lighting ECU, 300 vehicle ECU.

Claims

a plurality of lamps providing different lamp functions;
It is detected whether or not each of the plurality of lamps operates normally, and when a lamp which does not operate normally is detected, a substitute lamp is selected from the lamps which operate normally, and the lamp which does not operate normally is simulated. and a control device for controlling the substitute lamp so that it is lit in a substitute lighting mode.
2. The substitute lighting mode is determined so as to light the substitute lamp with brightness different from a normal lighting mode determined for the original function of the substitute lamp. Vehicle lighting fixtures as described.
The control device controls lighting in a normal lighting mode and blinking in the substitute lighting mode determined for the original function of the substitute lighting fixture, or blinking in the normal lighting mode and lighting in the substitute lighting mode. 3. The vehicular lamp according to claim 1, wherein the substitute lamp is controlled so as to cause the lamp to turn on.
3. The substitute lighting mode is determined to light the substitute lamp in a color different from the normal lighting mode determined for the original function of the substitute lamp. The vehicle lamp according to any one of .
The control device is configured to control the plurality of lamps so as to light each lamp in its normal lighting mode based on vehicle information received from the vehicle,
The control device switches from the substitute lighting mode to the normal lighting mode when the substitute lighting fixture should be lit in the normal lighting mode based on the vehicle information during control of the substitute lighting fixture in the substitute lighting mode. 5. The vehicular lamp according to claim 1, further controlling the substitute lamp.
each of the plurality of lamps has a first lamp and a second lamp that form a pair;
The control device is
It is detected whether or not each of the first lamps operates normally, and when a malfunctioning first lamp is detected, a substitute lamp is selected from the normally operating first lamps, and the malfunctioning first lamp is selected. controlling the substitute lamp so that it is lit in a substitute lighting mode simulating the lamp;
The second lamp paired with the first lamp that does not operate normally is turned off regardless of whether the second lamp operates normally, and the second lamp paired with the substitute lamp is turned off in the substitute lighting mode. 6. The vehicle lamp according to any one of claims 1 to 5, wherein control is performed so that the lamp is turned on at .
A control device for a vehicle lamp, the vehicle lamp comprising a plurality of lamps providing different lamp functions, the control device comprising:
It is detected whether or not each of the plurality of lamps operates normally, and when a lamp which does not operate normally is detected, a substitute lamp is selected from the lamps which operate normally, and the lamp which does not operate normally is simulated. A control device for a vehicle lamp, characterized by controlling the substitute lamp so that it is lit in a substitute lighting mode.
A method of controlling a vehicle lamp, the vehicle lamp comprising a plurality of lamps providing different lamp functions, the method comprising:
detecting whether each of the plurality of lamps operates normally;
selecting a substitute lamp from the normally operating lamps when a malfunctioning lamp is detected;
A control method for a vehicle lamp, comprising: controlling the substitute lamp to light in a substitute lighting mode simulating the malfunctioning lamp.
a first lamp unit providing a plurality of different lamp functions;
a second lamp unit paired with the first lamp unit and providing the plurality of lamp functions;
It is detected whether or not each lamp function of the first lamp unit operates normally, and when a lamp function that does not operate normally is detected, the first lamp function is simulated to simulate the lamp function that does not operate normally. a controller for controlling the normally operating parts of the unit;
The control device imitates the first lighting unit regardless of whether the lighting function of the second lighting unit paired with the malfunctioning lighting function of the first lighting unit operates normally. A vehicle lamp, wherein the second lamp unit is controlled as follows.
the first lamp unit includes a plurality of first lamps each providing a corresponding lamp function among the plurality of lamp functions;
the second lamp unit includes a plurality of second lamps each providing a corresponding lamp function among the plurality of lamp functions and paired with the plurality of first lamps;
The control device is
It is detected whether or not each of the first lamps operates normally, and when a malfunctioning first lamp is detected, a substitute lamp is selected from the normally operating first lamps, and the malfunctioning first lamp is selected. controlling the substitute lamp so that it is lit in a substitute lighting mode simulating the lamp;
The second lamp paired with the first lamp that does not operate normally is turned off regardless of whether the second lamp operates normally, and the second lamp paired with the substitute lamp is turned off in the substitute lighting mode. 10. The vehicular lamp according to claim 9, wherein the lighting is controlled by
the first lighting unit includes a first display that provides the plurality of lighting functions;
the second lighting unit includes a second display that provides the plurality of lighting functions;
The control device is
It is detected whether or not the first display operates normally, and when an area that does not operate normally is detected on the first display, another area on the first display that operates normally is detected as one of the plurality of In addition to controlling to provide the lighting fixture function,
An area on the second display that is paired with the area on the first display that does not operate normally is turned off regardless of whether the area operates normally, and the area on the first display that operates normally is turned off. 10. The vehicular lamp according to claim 9, wherein an area on the second display paired with another operating area is controlled to provide the plurality of lamp functions.
In the vehicle lamp control device, the vehicle lamp includes a first lamp unit providing a plurality of lamp functions different from each other, and a first lamp unit paired with the first lamp unit and providing the plurality of lamp functions. 2 lamp units, and the control device includes:
It is detected whether or not each lamp function of the first lamp unit operates normally, and when a lamp function that does not operate normally is detected, the first lamp function is simulated to simulate the lamp function that does not operate normally. control the functioning parts of the unit,
Regardless of whether the lighting function of the second lighting unit paired with the malfunctioning lighting function of the first lighting unit operates normally, the second lighting unit is configured to imitate the first lighting unit. A control device for a vehicle lamp, characterized by controlling a lamp unit.
In the method for controlling a vehicle lamp, the vehicle lamp includes a first lamp unit providing a plurality of lamp functions different from each other, and a second lamp unit paired with the first lamp unit and providing the plurality of lamp functions. 2 luminaire units, the method comprising:
a step of detecting whether each lamp function of the first lamp unit operates normally;
if a malfunctioning lighting function is detected, controlling the functioning portion of the first lighting unit to simulate the malfunctioning lighting function;
Regardless of whether the lighting function of the second lighting unit paired with the malfunctioning lighting function of the first lighting unit operates normally, the second lighting unit is configured to imitate the first lighting unit. and a step of controlling a lighting unit.
a lighting unit,
A control device configured to shift from the first presentation mode to the second presentation mode under the condition of a predetermined operation to the vehicle during execution of the first presentation mode,
The first effect mode is set in advance so as to light the lighting unit in a manner different from normal lighting of the lighting unit used while the vehicle is running,
The second effect mode lights the lamp unit in a manner different from the normal lighting of the lamp unit used while the vehicle is running and the first effect mode, and ends shorter than the first effect mode. A vehicle lamp characterized by being preset to .
The vehicle lamp according to claim 14, wherein the predetermined operation is operation of the foot brake.
The vehicular lamp according to claim 14 or 15, wherein the control device executes the first effect mode in response to an effect instruction when the shift position is in the parking range.
the lighting unit is configured to provide a plurality of different lighting functions;
The control device detects whether or not each lamp function of the lamp unit operates normally prior to the first presentation mode or during execution of the first presentation mode, and determines whether or not the lamp function that does not operate normally is detected. When detected, the third production mode is executed instead of the first production mode,
The third effect mode is set in advance so that the lighting unit is lit in a manner different from the normal lighting of the lighting unit used while the vehicle is running, and the lighting function that does not operate normally is not used. 17. The vehicle lamp according to any one of claims 14 to 16, wherein:
A control device for a vehicle lamp, wherein the vehicle lamp includes a lamp unit,
The control device is configured to shift from the first presentation mode to the second presentation mode on condition that a predetermined operation to the vehicle is performed during execution of the first presentation mode,
The first effect mode is set in advance so as to light the lighting unit in a manner different from normal lighting of the lighting unit used while the vehicle is running,
The second effect mode lights the lamp unit in a manner different from the normal lighting of the lamp unit used while the vehicle is running and the first effect mode, and ends shorter than the first effect mode. A control device for a vehicle lamp, characterized in that it is preset to .
A control method for a vehicle lamp, wherein the vehicle lamp includes a lamp unit,
The method includes shifting from the first effect mode to the second effect mode on condition that a predetermined operation to the vehicle is performed during execution of the first effect mode,
The first effect mode is set in advance so as to light the lighting unit in a manner different from normal lighting of the lighting unit used while the vehicle is running,
The second effect mode lights the lamp unit in a manner different from the normal lighting of the lamp unit used while the vehicle is running and the first effect mode, and ends shorter than the first effect mode. A control method for a vehicle lamp, characterized in that the vehicle lamp is preset to .