JP6526435B2 - Vehicle lighting control device - Google Patents

Description

  The present invention relates to a lighting control device for a vehicle, for example, to a technology that can be used to control lighting such as a room lamp for lighting a vehicle interior.

  In the vehicle, various situations occur and various switch operations of the user are performed as needed. Therefore, for example, when controlling the lighting etc. in the vehicle interior, switching between on / off is automatically performed in various operation modes, and switching between on / off is performed according to the switch operation of the user.

  In the vehicle body equipment control device of Patent Document 1, there is shown a technique for integrally controlling a plurality of vehicle body equipments in accordance with a situation where a vehicle is currently in contact.

  On the other hand, Patent Document 2 shows a technique for realizing appropriate lighting for each seat in a vehicle. Specifically, when the drive priority mode or the relaxation mode is selected, the driver's seat or the passenger's seat is illuminated with light having a white or cold color, and the seat in the second or third row is relaxed. It can be illuminated with warm colored light. Then, in the drive priority mode, the luminance of the illumination light is made higher toward the front (driver's seat or passenger's seat), and in the relaxation mode, the luminance of the illumination light is made lower toward the rear (seat near the third row).

JP, 2006-264472, A JP, 2014-73761, A

  In Patent Document 1, as described in paragraphs 0086 to 0088, detection of rainfall and approach to the toll booth occur simultaneously, and a request for “close the window” control occurs for detection of rainfall, For access to the toll booth, it is assumed that there is a control conflict in the case where a request for control to "open a window" occurs. Of course, it is considered that such a technique can also be applied to control of lighting and the like in a vehicle interior.

  However, when multiple control conflicts occur, which one should be prioritized must be determined appropriately each time, for example, as the number of types of in-vehicle equipment to be controlled increases, or as a control mode is added. In each case, it is necessary to review the arbitration algorithm and correct the computer program. For example, the algorithm of the arbitration control in the case of controlling the opening and closing of the window is applicable only to the window and can not be applied to the interior lighting of the vehicle. In addition, even if control is performed in a situation where the developer of the mediation control algorithm thinks appropriate, there is also the possibility that improper control that is actually undesirable for the user such as the driver may be performed. is there.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is when a plurality of controls compete even in a situation where there may be a change in control due to addition of a control mode or a user's request. It is an object of the present invention to provide a lighting control device for a vehicle, which is easy to appropriately perform the arbitration control.

In order to achieve the object mentioned above, the lighting control device for vehicles concerning the present invention is characterized by following (1)-( 5 ).
(1) A vehicle lighting control device that controls at least one lighting to realize a plurality of types of functions in a vehicle interior, comprising:
A priority information holding unit that holds information of a predetermined priority for each of the plurality of types of functions;
A priority control unit that preferentially controls the execution of a function having a high priority according to the information on the priority when conditions for executing each of a plurality of types of functions for one illumination are satisfied at the same time;
A function restriction information holding unit that holds detailed condition information related to preferential control;
Equipped with
In the priority information holding unit, as a second function having a lower priority than the first function, a plurality of types of functions having the same priority and performing different operations are assigned.
The priority control unit operates as the second function according to the information of the function restriction information holding unit when a condition for executing the second function is satisfied while the first function is operating. Performing the operation of a part of the plurality of types of functions, and not performing the operation of the remaining functions other than the part of the plurality of types of functions as the second function,
A lighting control device for a vehicle, characterized in that
(2) A lighting control device for a vehicle according to the above (1),
As the second function, a plurality of types of functions are assigned according to the manual operation of a plurality of operation switches,
When the condition for executing the second function is satisfied while the first function is operating, the priority control unit is configured to manually operate some of the plurality of operation switches. Execute the operation of the corresponding function, and do not execute the operation of the function corresponding to the manual operation of the remaining operation switches other than the part of the plurality of operation switches.
A lighting control device for a vehicle, characterized in that
( 3 ) A lighting control apparatus for a vehicle according to the above (1) or (2) , wherein
The priority control unit is configured to, when the execution of a second function having a higher priority than the first function is instructed when the first function having a lower priority is operating, at least the first. The operation state of the first function is stopped after the operation state of the function is stored, and when the execution of the second function is cancelled, the second function information is stored based on the stored information of the second function. Automatically return to the state before executing the function,
A lighting control device for a vehicle, characterized in that
( 4 ) A lighting control apparatus for a vehicle according to any one of the above (1) to ( 3 ),
The priority information storage unit is a non-volatile storage unit capable of updating the stored data;
The priority control unit updates the priority information held by the priority information holding unit according to the input instruction when a predetermined instruction is input from the user.
A lighting control device for a vehicle, characterized in that
( 5 ) A lighting control device for a vehicle according to any one of the above (1) to ( 4 ),
The priority information holding unit holds information of three or more types of priorities for each of a plurality of types of functions of lighting.
A lighting control device for a vehicle, characterized in that

According to the lighting control device for a vehicle having the above-described configurations (1) and (2) , when a situation occurs in which each of a plurality of types of functions is simultaneously executed, the priority information storage unit competes with the plurality of types of functions. Arbitration control is performed according to the information of each priority held in. Therefore, appropriate arbitration control can be realized by appropriately setting the priority information held in the priority information holding unit. That is, even if there is a control mode addition or a change in control due to the user's request etc., it is not necessary to change the control algorithm, and an appropriate response can be easily performed.
Furthermore, according to the vehicle lighting control device configured as described in ( 1 ) and (2) above, even when execution start instructions of a plurality of functions having different priorities are generated at mutually different timings, It is possible to limit low priority functions from being performed when high functions are being performed.
Furthermore, according to the vehicle lighting control device configured as described in the above (1) and (2) , when a high priority function is being executed, execution of a low priority function is instructed at a delayed timing. For lower priority functions, it is possible to limit execution to only a part of operations.
According to the lighting control apparatus for a vehicle having the configuration of ( 3 ), when the operation of the first function is stopped by the execution instruction of the second function having the high priority, the execution of the second function is performed. After the release of the first function, the operation of the first function can be automatically resumed.
According to the lighting control device for a vehicle having the configuration of ( 4 ), when the user etc. desires to change the priority of each function, the data in the non-volatile storage unit is updated by a simple operation Control can be changed to be in the order of priority.
According to the vehicle lighting control device of the above configuration ( 5 ), since different priorities can be assigned to each of three or more types of functions, even when functions are additionally added. It is possible to implement appropriate arbitration control.

  According to the lighting control apparatus for a vehicle of the present invention, it is possible to appropriately perform the arbitration control in the case where a plurality of controls compete, even in a situation where the control may be changed or the control may be changed by the user etc. Is easy. That is, by appropriately setting the priority information held in the priority information holding unit, it is possible to realize appropriate arbitration control as needed.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the modes for carrying out the invention described below (hereinafter referred to as "embodiments") with reference to the attached drawings. .

FIG. 1 is a block diagram showing a configuration example of a vehicle lighting control device according to an embodiment of the present invention. FIG. 2 is a schematic view showing a configuration example of the priority order table TBL1 which can be used by the vehicle lighting control device of FIG. FIG. 3 is a schematic view showing a configuration example of a function operation condition table TBL2 that can be used by the vehicle lighting control device of FIG. FIG. 4 is a schematic view showing a configuration example of the function restriction table TBL3 that can be used by the vehicle lighting control device of FIG. FIG. 5 is a flowchart showing a processing procedure of the illumination arbitration control (1) applicable to the vehicle lighting control device of FIG. FIG. 6 is a flowchart showing a processing procedure of the illumination arbitration control (2) applicable to the vehicle lighting control device of FIG. FIG. 7 is a flowchart showing the processing procedure of the illumination arbitration control (3) applicable to the vehicle lighting control device of FIG. FIG. 8 is a time chart showing an operation example of the vehicle lighting control device of FIG.

  Specific embodiments of the vehicle lighting control device of the present invention will be described below with reference to the drawings.

First Embodiment
<Overview of configuration>
The structural example of the lighting control apparatus 100 for vehicles of embodiment of this invention is shown in FIG. The vehicle lighting control apparatus 100 shown in FIG. 1 is mounted on a vehicle and used to control lighting in a vehicle interior. Of course, it is also conceivable to apply the vehicle lighting control device of the present invention to an application for controlling various lamps for illuminating the outside of a vehicle.

  The vehicle lighting control device 100 shown in FIG. 1 includes a vehicle interior lighting control unit 11, a light control circuit 12, a vehicle interior lighting lamp 13, a non-volatile memory 14, a vehicle travel state detection unit 21, a door open / close state detection switch 22, An operation unit 23 and a door locking / unlocking control unit 24 are provided.

  Further, on the non-volatile memory 14, a priority order table TBL1, a function operation condition table TBL2, and a function restriction table TBL3 are provided. Further, the operation unit 23 is provided with an illumination light ON / OFF operation switch 23a, an illumination light amount increase operation switch 23b, and an illumination light amount reduction operation switch 23c.

  As a representative example of the vehicle interior illumination lamp 13, a room lamp which is disposed on a ceiling portion or the like of the vehicle interior and illuminates the vehicle interior can be assumed. In addition, since a plurality of room lamps are often arranged in different places in an actual vehicle, a plurality of independent vehicle interior illumination lamps 13 may be connected as control targets of the vehicle lighting control apparatus 100. is assumed.

  The light control circuit 12 has a function of switching on / off the vehicle interior illumination lamp 13 or adjusting the light emission amount of the vehicle interior illumination lamp 13 according to the presence or absence of energization from the power supply on the vehicle to the vehicle interior illumination lamp 13. Have. Specifically, by switching on and off switching elements (not shown) such as transistors incorporated in the light control circuit 12, on / off control of energization of the vehicle interior illumination lamp 13 is controlled. In addition, it is possible to adjust the light emission amount of the vehicle interior illumination lamp 13 by repeating on and off in a pulse shape and changing the on and off duty by pulse width modulation (PWM) control to switch the average current value.

  The interior lighting control unit 11 is formed of, for example, a logic circuit mainly composed of a microcomputer, and executes a program incorporated in advance to turn on / off the interior lighting lamp 13 and emit light according to the situation. It can be adjusted properly.

  The program for controlling the interior lighting control unit 11 shown in FIG. 1 is held in each of the priority table TBL1, the function operation condition table TBL2, and the function restriction table TBL3 disposed on the non-volatile memory 14 Appropriate control can be easily realized by using various data.

  The vehicle travel state detection unit 21 detects the current vehicle speed by monitoring, for example, a signal output from a vehicle speed sensor mounted on the host vehicle, and identifies the result as to whether or not the vehicle travels at a predetermined speed or more. It can be output as SG1. When the host electronic control unit (ECU) incorporates a function equivalent to that of the vehicle travel state detection unit 21, the ECU supplies information equivalent to the signal SG 1 to the interior lighting control unit 11 through communication. In this case, the vehicle travel state detection unit 21 can be omitted.

  The door open / close state detection switch 22 can output a signal SG2 indicating the open / close state of each door of the vehicle. Since a plurality of doors are provided in an actual general vehicle, a plurality of signals SG2 indicating the open / close state of each of the plurality of doors are outputted from the door open / close state detection switch 22.

  The illumination on / off operation switch 23a is a switch that can be manually operated by a user such as a driver, and is a signal for instructing switching of the interior lighting lamp 13 from off to on and switching from on to off. Output SG3. The illumination light amount increase operation switch 23b is a switch that can be manually operated by a user such as a driver, and outputs a signal SG4 for increasing the amount of light when the vehicle interior illumination lamp 13 is lit. The illumination light amount reduction operation switch 23c is a switch that can be manually operated by a user such as a driver, and outputs a signal SG5 for reducing the amount of light when the vehicle interior illumination lamp 13 is lit.

  The door locking / unlocking control unit 24 controls the locking / unlocking of the locking mechanism (not shown) of each door according to the operation of the vehicle key, the operation of the remote control device, or the like. Further, the door locking / unlocking control unit 24 outputs a signal SG7 indicating the state of locking / unlocking.

  A special operation terminal (not shown) can be connected to the vehicle lighting control device 100 shown in FIG. 1 when the vehicle is maintained or the like. The signal SG8 of the data update instruction can be input from the operation terminal to the interior lighting control unit 11 of the vehicle lighting control device 100. The nonvolatile memory 14 is capable of rewriting each data held therein, and the interior lighting control unit 11 updates data of each table on the nonvolatile memory 14 in accordance with the signal SG8 from the operation terminal. Can.

<Description of Function>
The vehicle lighting control apparatus 100 shown in FIG. 1 has the following six functions F01 to F06 as functions related to control of the interior lamp 13. The number and types of such functions can be increased or reduced as necessary.

F01: Door opening interlock automatic room lighting function This is a function for automatically turning on the room lighting according to the signal SG2 when the door of the vehicle is opened. For example, while the door is open, the illumination is maintained in the on state, and when the door is closed, the function is terminated and the illumination is turned off after a predetermined time passes.

F02: Running room illumination light amount automatic reduction function This works in conjunction with the signal SG1 to automatically turn on the indoor lighting of the own vehicle in order to prevent the indoor lighting from obstructing the driver's visibility of other vehicles when the vehicle travels at night etc. It is a function to perform an operation to turn off the light or to reduce the light quantity.

F03: Door Unlocking Interior Lighting Lighting Function This is a function to automatically turn on the indoor lighting when the door of the vehicle is unlocked by the operation of the vehicle key or the remote control.

F04: Door Locking Room Lighting Off Function This is a function for automatically turning off the room lighting when the door of the vehicle is locked by the operation of the vehicle key or the remote control.

F05: Automatic Interior Lighting Function According to Other Situations This is assigned for the function of performing automatic control according to the conditions other than the above-mentioned F01 to F04 regarding the vehicle interior lighting.

F06: Individual operation function according to operation switch This is a function for individually switching the state of the interior lighting of the vehicle according to the manual operation of each operation switch 23a, 23b, 23c of the operation unit 23.

<Specific configuration example of each table used for control>
<Priority table TBL1>
A configuration example of the priority order table TBL1 that can be used by the vehicle lighting control device 100 of FIG. 1 is shown in FIG. The contents of the priority table TBL1 hold data of the priorities of the six types of functions F01 to F06 described above in the control of the interior lighting.

  In the priority table TBL1 shown in FIG. 1, the highest priority P1 is assigned to the door opening interlock automatic room lighting function F01. In addition, the function for automatically reducing the quantity of indoor illumination light F02 when running, the function F03 for illuminating indoor light when the door is unlocked, the function F04 for locking indoor light when the door is locked, and the function F05 for automatic indoor lighting according to other situations are more than P1. Lower priorities P2, P3, P4 and P5 are assigned. In addition, the lowest priority P6 is assigned to the individual operation function F06 according to the operation switch.

  Although it is assumed that constant data, for example, as shown in FIG. 2 is registered on the priority order table TBL1 in the initial state, data in the non-volatile memory 14 is updated as necessary to give priority. It is possible to change the order.

<Function operating condition table TBL2>
A configuration example of the function operation condition table TBL2 that can be used by the vehicle lighting control device 100 of FIG. 1 is shown in FIG. The contents of the function operating condition table TBL2 hold data representing conditions for starting operations of the above-described six types of functions F01 to F06 in control of interior lighting, and conditions for ending the operations.

  For example, with regard to the start condition C011 of the door opening interlocking automatic indoor lighting function F01 in the function operating condition table TBL2 of FIG. 3, as a specific example, "one or more doors are opened" from the state of all doors closed. It is assumed that data corresponding to “changed state” is held. In addition, for the ending condition C012 of F01, data corresponding to "a state where a predetermined time has elapsed after all the doors have been changed from the state of" opened one or more doors "to" closed "is held. Is assumed.

  As a specific example, it is assumed that data corresponding to “the vehicle speed changes from a predetermined vehicle speed or less to a predetermined vehicle speed exceeding the predetermined vehicle speed” is held for the start condition C021 of the function of automatically reducing the amount of room illumination light when traveling. Be done. In addition, for the ending condition C022 of F02, for example, it is assumed that data corresponding to "a state where a predetermined time has elapsed after the vehicle speed changes from a predetermined vehicle speed or more and less than the predetermined vehicle speed" is held.

<Function restriction table TBL3>
A configuration example of the function restriction table TBL3 which can be used by the vehicle lighting control device 100 of FIG. 1 is shown in FIG. The content of this function restriction table TBL3 is the permission and restriction of each operation of the function having lower priority than the function when executing each of the above-mentioned six types of functions F01 to F06 in the control of the interior lighting of the vehicle. It holds data representing conditions.

  For example, when executing the door opening interlock automatic room lighting function F01, it is desirable that the interior lighting lamp 13 be always on when the door is "open", so at this time, the operation switch 23a is operated to F06 It is necessary to limit the operation of turning off the interior lamp 13 of the vehicle interior. However, the operation of adjusting the brightness of the vehicle interior illumination lamp 13 may be performed in F06 by operating the operation switches 23b and 23c. In such a situation, in the operation belonging to the individual operation function F06 according to the operation switch, information representing the turn-off operation to be restricted is registered in TBL3 as D11, and information representing the light control operation to be permitted is D12. It is assumed that TBL3 is registered as

  By performing control using such a function restriction table TBL3, for example, when executing the function F01, the operation of a part of the functions of the lower priority F06 is restricted, and the other part of the operation is performed. It will only be possible to allow.

<Description of lighting arbitration control>
A processing procedure of the illumination arbitration control (1) applicable to the vehicle lighting control device 100 of FIG. 1 is shown in FIG. That is, when the interior lighting control unit 11 controls the interior lighting lamp 13 shown in FIG. 1, the functions F01 to F06 shown in FIG. 2 etc. can be executed according to the situation based on the processing procedure of FIG. It is possible to perform appropriate arbitration when there is a race condition in which a plurality of functions F01 to F06 are simultaneously executed.

  In step S11, the interior lighting control unit 11 receives the latest state of each of the signals SG1 to SG7, and grasps these states. In the next step S12, it is determined whether or not the latest state of each of the functions F01 to F06 is in operation. For example, it is possible to grasp for each function whether it is in operation or not by referring to on / off of a flag (not shown) associated with each of the functions F01 to F06.

  In step S13, the interior lighting control unit 11 identifies, among the functions F01 to F06, whether or not the function being stopped has satisfied the condition for starting the operation. For example, when the function F01 is stopped, it is determined whether the state corresponding to the start condition C011 of the function operating condition table TBL2, that is, the state changed to "door open" based on the signal SG2. If the condition for starting the operation is satisfied, the process proceeds to the next S14.

  In step S14, the interior lighting control unit 11 determines whether competition of a plurality of functions has occurred. For example, when there are a plurality of functions F01 to F06 that satisfy the condition to start the operation at the same timing, or another function satisfies the operation start condition during operation of any of the functions F01 to F06. If it is determined that a conflict has occurred in S14, the process proceeds from S14 to S16. If there is no conflict, the process proceeds to S15.

  In step S15, the interior lighting control unit 11 starts the execution of the function satisfying the start condition in step S13. For example, when the door is changed to "door open" based on the signal SG2, the interior lighting control unit 11 controls the signal SG6 in S15, and the interior lighting lamp 13 is turned off using the light adjustment circuit 12. Switch to the lit state.

  Although not illustrated, after each operation of the functions F01 to F06 is started in S15, whether or not the corresponding termination condition (any of C012 to C062) is satisfied is repeatedly identified, and the termination condition is satisfied. Stop execution of the corresponding function.

  In step S16, the interior lighting control unit 11 acquires, from the priority table TBL1, information on the priority of each of the plurality of functions whose competition has been detected in S14.

  In step S17, the interior lighting control unit 11 determines whether a function with a high priority is already being executed among the plurality of functions in which the competition is detected. If the high priority function is already being executed, the process proceeds to S18, and if not, the process proceeds to S19. That is, in a state where a function with a high priority is being executed, when a function with a priority lower than that is in a state where the execution start condition is satisfied, the process proceeds to S18. In addition, when a function with a lower priority gets to a condition that meets the execution start condition while a function with a lower priority is being executed, or multiple functions meet the execution start condition at the same time and enter a conflict state. When it becomes, it progresses to S19.

  In step S18, the interior lighting control unit 11 ignores the execution instruction for the function with low priority. That is, even if it is detected in S13 that the start condition of the low priority function is satisfied, nothing is performed for the corresponding function, and the execution state of the high priority function is continued. This avoids multiple function conflicts.

  In step S19, the interior lighting control unit 11 identifies whether or not a function with low priority is already being executed among the plurality of functions in which the competition is detected. If the low priority function is already being executed, the process proceeds to S20, and if not, the process proceeds to S21. That is, in a state where a function with a lower priority is being executed, when a function with a higher priority than that is in a state where an execution start condition is satisfied, the process proceeds to S20.

  In step S20, the interior lighting control unit 11 forcibly stops the execution of the currently executed low priority function. This can avoid a race condition in which multiple functions are executed simultaneously.

  In step S21, the interior lighting control unit 11 starts execution of the function of high priority that satisfies the start condition in step S13.

<Description of characteristic operation>
That is, by performing the "light arbitration control" shown in FIG. 5, the following arbitration is performed.

(1) In the state where a function with a high priority is being executed, when a function with a priority lower than that becomes a state to meet the execution start condition, the process proceeds from S17 to S18 and an instruction for a function with low priority is given. It will be ignored and the execution of high priority functions will continue.
(2) In a state where a function with a lower priority is being executed, when a function with a higher priority becomes a state that meets the execution start condition, the process proceeds to S17, S19, S20 and After the execution is forcibly stopped, the execution of the high priority function is started in S21.
(3) If a plurality of functions with different priorities are simultaneously changed to a state satisfying the execution start condition at the same timing, the process proceeds to S17, S19, and S21, and only the function with high priority among the corresponding plurality Execution is started.

Second Embodiment
<Description of Summary>
The second embodiment is a modification of the first embodiment described above. Also in the second embodiment, the configuration of the vehicle lighting control device 100 is the same as that shown in FIG.

  In the vehicle lighting control apparatus 100 of the second embodiment, the processing procedure of the illumination arbitration control (2) shown in FIG. 6 is applied instead of the control of FIG. Further, it is assumed that the function restriction table TBL3 configured as shown in FIG. 4 is used.

  This makes it possible to distinguish between the operation to be restricted and the operation to be permitted with respect to the operation of the function with low priority among the plurality of competing functions when there is a conflict of a plurality of functions, and a plurality of functions with different priorities. It is possible to partially co-exist.

<Description of processing procedure>
The processing procedure of the illumination arbitration control (2) shown in FIG. 6 will be described below. In FIG. 6, the steps corresponding to FIG. 5 are shown with the same reference numerals. The description of the same steps as the process of FIG. 5 is omitted.

  In step S31 in FIG. 6, the interior lighting control unit 11 performs, based on the contents registered in the function restriction table TBL3, an operation to be restricted (prohibited) among the functions with lower priority than the function. Identify the permitted actions.

  For example, in the state where the function of F01 is already executed, the operation to be restricted is specified by the data D12 on the TBL3, and the operation permitted by the data D11 is specified. As a specific example, it is considered that the manual turn-off operation included in the function F06 with low priority is assigned to the data D12, and the manual light amount adjustment operation included in the function F06 with low priority is assigned to the data D11 Be

  In step S32, the interior lighting control unit 11 ignores the execution instruction for the prohibited operation (for example, the manual light-off operation) among the operations included in the function with low priority based on the condition specified in S31. .

  In step S33, the interior lighting control unit 11 executes a permitted operation (for example, a manual light amount adjustment operation) among the operations included in the functions with low priority based on the conditions specified in S31 in accordance with the instruction.

  That is, when it is detected in S13 that the start condition of the corresponding low priority function (for example, F06) is satisfied, the prohibited operation is ignored among the plurality of operations of the corresponding function and permitted. Execute only the action. In this way, when multiple functions compete, optimal arbitration can be performed.

Third Embodiment
<Description of Summary>
The third embodiment is a modification of the first embodiment described above. Also in the third embodiment, the configuration of the vehicle lighting control device 100 is the same as that shown in FIG.

  In the vehicle lighting control device 100 of the third embodiment, the processing procedure of the illumination arbitration control (3) shown in FIG. 7 is applied instead of the control of FIG. As a result, when multiple functions conflict, when execution of the high priority function ends, it is possible to automatically return to the state of executing the low priority function.

<Description of processing procedure>
The processing procedure of the illumination arbitration control (3) shown in FIG. 7 will be described below. In FIG. 7, steps corresponding to FIG. 5 are shown with the same reference numerals. The description of the same steps as the process of FIG. 5 is omitted.

  In step S41 in FIG. 7, the interior lighting control unit 11 stores information representing the state of the currently executed low priority function as a history on a predetermined memory. Further, in the next step S42, the interior lighting control unit 11 forcibly suspends the execution of the currently executed low priority function.

  In step S43, the interior lighting control unit 11 monitors the execution state of the high-priority functions whose execution has been started in step S21, and waits until the execution is ended. When the execution of this high priority function is ended, the process proceeds from S43 to S44.

  In step S44, the interior lighting control unit 11 reads the information of the history stored in the memory in step S41, and grasps the state before the start of the execution of the function with high priority. Then, if it has been recorded as a history that a function with a lower priority has been executed, the original state is restored according to the contents of this history. That is, the execution of the low priority function, which was forcibly interrupted in S42, is resumed.

<Description of operation example>
An operation example of the vehicle lighting control device 100 of FIG. 1 is shown in FIG. An operation example shown in FIG. 8 will be described below.

  In the section from time t1 to t3 shown in FIG. 8, for example, it is assumed that the individual operation function F06 corresponding to the above-described operation switch is executed. That is, when the user operates the illumination on / off operation switch 23a while the illumination (A) of the vehicle interior illumination lamp 13 is off (off), the illumination (A) is on (light control) by execution of the function F06. It switches to (1) or light control (2). Incidentally, due to the inherent characteristics of the vehicle interior illumination lamp 13 and the like, the actual light amount changes with the lapse of time according to the specific inclination.

  In addition, when the user operates the illumination light quantity reduction operation switch 23c at time t2, the conduction duty in the light adjustment circuit 12 is adjusted by the function F06, and the illumination (A) remains lit and the light adjustment (1) Transition to the light level of).

  Further, in the section from time t3 to t5, it is assumed that a function having a higher priority than the individual operation function in the section from t1 to t3 is activated. Therefore, the individual operation of the section from t2 to t3 is interrupted at t3, and the priority function is started from t3. In this priority function, the illumination (A) is switched to the lighting state of the light control (1).

  In addition, while the priority function is being executed in a section from t3 to t5, there is a possibility that an individual operation with a low priority (for example, a switch operation) is performed at t4. However, even if the start condition of the low-priority individual operation function is satisfied during execution of the high-priority function, this is ignored at, for example, step S18 of FIG. There is no change.

  In the operation example of FIG. 8, it is assumed that the start condition of the upper priority function (for example, F02) having higher priority than the priority function of the section of t3 to t5 is satisfied at time t5. Therefore, the upper priority function is executed in a section from t5 to t6, whereby the illumination (A) is switched to the extinguished state.

  When the execution of the upper priority function is finished at time t6, step S44 is executed when the control of FIG. 7 is adopted. Therefore, the states of the functions of the individual operations t2 to t3 interrupted at time t3 in FIG. 8 are read out and restored. Thereby, the control is switched to the same state as the light control (2) of the light amount level of the illumination (A) at time t3 under control of time t6.

  The contents of the arbitration operation as shown in FIG. 8 can be appropriately dealt with according to the situation by using the above-mentioned priority order table TBL1, function operation condition table TBL2, function restriction table TBL3 and the like. Further, since data held in these tables can be updated as needed, it can be easily coped with when changing user's wishes or adding functions.

Here, the features of the embodiment of the lighting control device for a vehicle according to the present invention described above will be briefly summarized and listed in the following [1] to [6].
[1] A vehicle lighting control device (100) for controlling at least one lighting (13) to realize a plurality of types of functions (F01 to F06) in a vehicle compartment,
A priority information holding unit (TBL1) that holds information of a predetermined priority for each of the plurality of types of functions;
When conditions for executing each of a plurality of types of functions for one illumination are satisfied at the same time, the priority control unit (11 , S14 to S21),
A lighting control device for a vehicle comprising:
[2] The vehicle lighting control device according to the above [1], which
The priority control unit is configured to execute the second function when a first function having a high priority is operating and a condition for performing a second function having a priority lower than the first function is satisfied. Ignore or limit the execution instruction of the function (S17, S18),
A lighting control device for a vehicle, characterized in that
[3] A lighting control device for a vehicle according to [2] above,
The function restriction information holding unit for holding detailed condition information related to preferential control;
The priority control unit is restricted with respect to a second function whose priority is lower than the first function according to the information of the function restriction information holding unit when the first function having a higher priority is operating. Permit only partial operations other than the above (S31 to S33),
A lighting control device for a vehicle, characterized in that
[4] The vehicle lighting control device according to any one of the above [1] to [3],
The priority control unit is configured to, when the execution of a second function having a higher priority than the first function is instructed when the first function having a lower priority is operating, at least the first. After storing the operation state of the function (S41) and then stopping the operation of the first function (S42) and canceling the execution of the second function, the information of the second function stored is stored. Based on the state of the second function (S44).
A lighting control device for a vehicle, characterized in that
[5] A vehicle lighting control device according to any one of the above [1] to [4],
The priority information storage unit is a non-volatile storage unit (non-volatile memory 14) capable of updating stored data.
The priority control unit updates the priority information held by the priority information holding unit according to the input instruction when a predetermined instruction (signal SG8) is input from the user.
A lighting control device for a vehicle, characterized in that
[6] A vehicle lighting control device according to any one of [1] to [5] above,
The priority information holding unit holds information of three or more types of priorities for each of a plurality of types of functions of illumination (see FIG. 2).
A lighting control device for a vehicle, characterized in that

11 car interior lighting control unit 12 dimmer circuit 13 car interior lighting lamp 14 non-volatile memory 21 vehicle travel state detection unit 22 door open / close state detection switch 23 operation unit 23a illumination on / off operation switch 23b illumination light increase operation switch 23c illumination light amount Reduction operation switch 24 Door locking / unlocking control unit 100 Vehicle lighting control device F01 Door opening interlock automatic room lighting function F02 Running room lighting light amount automatic reduction function F03 Door unlocking room lighting lighting function F04 Door locking room lighting off Function F05 Automatic room lighting function according to other conditions F06 Individual operation function according to operation switch TBL1 priority order table TBL2 function operation condition table TBL3 function restriction table SG1, SG2, SG3, SG4, SG5, SG6, SG7, SG8 Signal

Claims (5)

A vehicle lighting control device that controls at least one lighting to realize a plurality of types of functions in a vehicle interior, comprising:
A priority information holding unit that holds information of a predetermined priority for each of the plurality of types of functions;
A priority control unit that preferentially controls the execution of a function having a high priority according to the information on the priority when conditions for executing each of a plurality of types of functions for one illumination are satisfied at the same time;
A function restriction information holding unit that holds detailed condition information related to preferential control;
Equipped with
In the priority information holding unit, as a second function having a lower priority than the first function, a plurality of types of functions having the same priority and performing different operations are assigned.
The priority control unit operates as the second function according to the information of the function restriction information holding unit when a condition for executing the second function is satisfied while the first function is operating. Performing the operation of a part of the plurality of types of functions, and not performing the operation of the remaining functions other than the part of the plurality of types of functions as the second function,
A lighting control device for a vehicle, characterized in that The vehicle lighting control device according to claim 1, wherein
As the second function, a plurality of types of functions are assigned according to the manual operation of a plurality of operation switches,
When the condition for executing the second function is satisfied while the first function is operating, the priority control unit is configured to manually operate some of the plurality of operation switches. Execute the operation of the corresponding function, and do not execute the operation of the function corresponding to the manual operation of the remaining operation switches other than the part of the plurality of operation switches.
A lighting control device for a vehicle, characterized in that A vehicle lighting control device according to claim 1 or 2 , wherein
The priority control unit, when the lower priority the second function is activated, when said second function execution priority is higher the first function than is instructed, at least the The operation state of the second function is stored after the operation state of the second function is stored, and when the execution of the first function is canceled, the second function information is stored based on the stored information of the second function. Automatically return to the state before executing function 1
A lighting control device for a vehicle, characterized in that The vehicle lighting control device according to any one of claims 1 to 3 , wherein
The priority information storage unit is a non-volatile storage unit capable of updating the stored data;
The priority control unit updates the priority information held by the priority information holding unit according to the input instruction when a predetermined instruction is input from the user.
A lighting control device for a vehicle, characterized in that It is a lighting control device for vehicles according to any one of claims 1 to 4 ,
The priority information holding unit holds information of three or more types of priorities for each of a plurality of types of functions of lighting.
A lighting control device for a vehicle, characterized in that