JPH07285378A - Illumination control device for vehicle - Google Patents

Abstract

PURPOSE:To facilitate the storage of baggages and the insertion of a key into a key cylinder by lighting a room lamp for a prescribed period regardless of a door lock action at the time of riding into a vehicle. CONSTITUTION:This illumination control device for a vehicle is provided with a CPU 7, an IGN-ON switch 1, and a door lock switch 2. The CPU 7 measures the number of door lock actions after an ignition key is operated to the off position with a variable N. If the value of the variable N is '1' when a door lock action is taken after an opened door is closed, the CPU 7 judges the action as alighting and turns off a room lamp 6. If the value is a numeral other than '1', the room lamp 6 is not turned off by the door lock action. The room lamp 6 is not turned off by the door lock action at the time of riding, and the storage of baggages is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle lighting control device for controlling lighting / extinguishing of an interior light inside a vehicle according to opening / closing of a door and a state of a door lock switch.

[0002]

2. Description of the Related Art There is known a vehicle lighting control device for controlling lighting / extinguishing of an interior light according to opening / closing of a door (for example, Japanese Utility Model Laid-Open No. 55-95941). In this type of conventional vehicle lighting control device, the CPU provided inside the vehicle lighting control device controls the turning on / off of the interior light. FIG. 5 shows a main process performed by a CPU inside the vehicle lighting control device of this type, and FIG. 3 shows an interrupt process performed by the CPU. The operation of the conventional vehicle lighting control device will be described with reference to these flowcharts. The CPU performs the processing of FIGS. 3 and 5 regardless of whether the ignition key is on or off. In addition, the CPU performs the main processing of FIG.
For example, the interrupt process of FIG. 3 is performed at intervals of 200 ms, while the interrupt process of FIG.
Perform at s intervals.

In step S1 of FIG. 5, it is determined whether the door is currently open. If the determination is positive, the process proceeds to step S2, and the flag is set to "0". This flag is a flag for determining whether or not to prohibit the processing after step S52 of the interrupt processing in FIG. 3 described later, and when this flag is “0”, the flag in step S52 in FIG.
Indicates that the subsequent processing is prohibited. In step S3,
It is determined whether the door was closed when the main processing was performed immediately before. If the determination is positive, the process proceeds to step S4 and the timer is reset. Both when the determination in step S3 is negative and when the processing in step S4 is completed, the process proceeds to step S5, and the interior light is turned on. On the other hand, if the determination in step S1 is negative, the process proceeds to step S6,
Set the flag to "1". In step S7, it is determined whether or not the door was opened when the main processing was performed immediately before. If the determination is affirmative, the process proceeds to step S8, and timer measurement is started.

Both when the determination in step S7 is negative and when the processing in step S8 is completed, step S9 is performed.
Then, it is determined whether or not the door has been unlocked (hereinafter referred to as unlock) when the main processing was performed immediately before, and the door is currently locked (hereinafter referred to as door lock). If the determination is positive, the process proceeds to step S10, the timer measurement is stopped, and the timer is reset. Step S5
When the process of step S9 is finished, the determination of step S9 is negative, and the process of step S10 is finished, the process proceeds to step S11, and the current unlocked state of the door and the open / closed state of the door are stored. Ends the process.

On the other hand, step S5 of the interrupt processing shown in FIG.
At 1, it is determined whether the flag is "1". If the determination is negative, the process returns, and if the determination is affirmative, the process proceeds to step S52, and it is determined whether or not the timer measurement is in progress. If the determination is affirmative, the process proceeds to step S53, and it is determined whether or not a predetermined time has elapsed since the timer measurement was started. If the determination is positive, the process proceeds to step S54, the timer measurement is stopped, and the timer is reset. Both when the process of step S54 ends and when the determination of step S52 is negative, the process proceeds to step S55, the interior light is turned off, and the process returns. On the other hand, if the determination in step S53 is negative, the process proceeds to step S56, the interior light is turned on, and the process returns.

As described above, the conventional vehicle lighting control device unconditionally lights the interior light when the door is opened, and starts the timer measurement when the opened door is closed, and is limited to during the timer measurement. Turn on the interior light. However, if the door is locked during the timer measurement, the timer measurement is stopped and the interior light is turned off.

[0007]

In the conventional vehicle lighting control device, the interior light is turned on when the door is opened in order to facilitate the entry / exit preparation, that is, the loading and unloading of luggage. On the other hand, The reason why the interior light is turned on when the opened door is closed is mainly for storing luggage and making the inside of the car brighter so that the key insertion port can be easily confirmed, and also for prompting the user to lock the door. . Also, while the interior light is being lit by the change from door opening to closing,
The reason why the interior light is turned off by the door lock operation is that the door lock is normally performed when the passenger is ready to board, and therefore it can be determined that the passenger is ready to board the vehicle by the door lock operation.

However, the occupant does not always lock the door after the passenger is ready to board, and in some cases, the door may be locked immediately after the door is closed, and then the luggage may be stored or the key may be inserted into the key cylinder. is there. For this reason,
If the interior light is turned off at the same time as the door lock, there is a problem that it becomes difficult to store luggage.

It is an object of the present invention to get into a vehicle
An object of the present invention is to provide a vehicle lighting control device that lights an interior light for a predetermined time regardless of a door lock operation and facilitates storage of luggage, insertion of a key into a key cylinder, and the like.

[0010]

The present invention will be described with reference to FIG. 1 showing an embodiment. According to the present invention, the door opening / closing detecting means 3 and 7 for detecting the opening / closing of the door and the opened door are A door closing determination unit 7 that determines whether the door is closed, and a lock that determines whether the door is locked while the door is closed after the door closing determination unit 7 determines that the door is closed. The determination means 7 and, if the lock determination means 7 does not determine that the door is locked, the interior light is turned on for a predetermined time after the door is closed, and if it is determined that the door is locked, the interior light is turned off. It is applied to a vehicle lighting control device including control means 5 and 7, and includes a boarding / alighting judging means 7 for judging whether a door is opened for getting on or off and a door is opened for getting off. To the boarding and alighting judgment means 7 The door for a ride is determined to have been opened me, regardless of the determination result of the lock determining unit 7, and constitutes the interior light control means 5 and 7 to the interior light for a predetermined time lighting. According to a second aspect of the present invention, in the vehicle lighting control device according to the first aspect, there is provided a lock number measuring means 7 for measuring the number of times the door is locked while the ignition key is in the off position.
The boarding / alighting judging means 7 is configured to judge whether the door is opened to get on or get off the door based on the number of times measured by the lock number measuring means 7. . The invention described in claim 3 is the invention according to claim 2.
In the vehicle lighting control device described in (1), when the ignition key is operated from the ON position to the OFF position, the lock frequency measuring means 7 is configured to initialize the measured frequency once. According to a fourth aspect of the invention, in the vehicle lighting control device according to the second or third aspect, if the number of times measured by the lock number measuring means 7 is not one, the determination result of the lock determining means 7 is Regardless, the interior light control means 5 and 7 are configured so that the interior lights are turned on for a predetermined time after the door is closed. According to the invention of claim 5, in the vehicle lighting control device according to claim 2 or 3, the determination result of the lock determining means 7 is set only when the number of times measured by the lock number measuring means 7 is two. Regardless, the interior light control means 5 and 7 are configured so that the interior lights are turned on for a predetermined time after the door is closed.

[0011]

According to the first aspect of the invention, the boarding / alighting judging means 7 judges whether the door is opened for boarding or the door is opened for boarding, and the door is opened for boarding. When the determination is made, the interior light control means 5 and 7 turn on the interior light for a predetermined time regardless of the determination result of the lock determination means 7. According to the second aspect of the present invention, the number of times the door is locked while the ignition key is in the off position is measured by the lock number measuring means 7, and based on this number, the boarding / alighting judging means 7 detects that the door is locked for boarding. Determine if it was opened or the door was opened to get off. When the ignition key is operated from the on position to the off position, the lock number measuring means 7 of the invention according to claim 3 initializes the number of times being measured once. Therefore, in the lock number measuring means 7, the ignition key is The number of times after being operated to the off position is measured. If the number of times measured by the lock number measuring means 7 is not one, the interior light control means 5, 7 of the invention according to claim 4 keeps the interior light for a predetermined time regardless of the determination result of the lock determining means 7. Since the lights are turned on, the interior lights are not turned off even if the door is locked when the passenger gets on after the ignition is turned off. The interior light control means 5 and 7 according to the fifth aspect of the invention determine the lock determining means 7 only when the number of times measured by the lock number measuring means 7 is two.
Since the interior light is turned on for a predetermined time regardless of the determination result of 1., the interior light is not turned off even if the door is locked at the time of boarding after the ignition is turned off.

Incidentally, in the section of means and action for solving the above problems for explaining the constitution of the present invention, the drawings of the embodiments are used for making the invention easy to understand. It is not limited.

[0013]

【Example】

First Embodiment FIG. 1 is a block diagram of a first embodiment of a vehicle lighting control device according to the present invention. In FIG. 1, reference numeral 1 denotes an IG that turns on when an ignition key (not shown) is operated to an on position.
N-ON switch, 2 is a door lock switch for switching between door lock and unlock, and 3 is a door switch for detecting opening / closing of the door, and these are all connected to the input circuit 4. Reference numeral 5 is a lighting / extinguishing circuit for turning on / off the interior light 6, and 7 is C for carrying out the processing of FIGS.
PU and 8 are RAs for storing processing results by the CPU 7.
M and 9 are timers for measuring the lighting time of the interior light 6.
The CPU 7 takes in each state of the IGN-ON switch 1, the door lock switch 2, and the door switch 3 via the input circuit 4.

2 and 3 are flowcharts showing the processing of the CPU 7, FIG. 2 being the main processing of the CPU 7, and FIG.
The interrupt processing of PU7 is shown. Step S101 in FIG.
Then, it is determined whether or not the ignition key is at the on position when the main process is performed immediately before, and is currently at the off position. This judgment is made based on the state of the IGN-ON switch 1. If the determination is positive, step S102
Then, the variable N is initialized to "0". With this variable N, the number of times the door is locked is measured. Step S10
When the determination of 1 is denied or when the process of step S102 is completed, the process proceeds to step S103, and it is determined whether the door is open or not by the state of the door switch 3. If the determination in step S103 is affirmative, the process proceeds to step S104, and the same processes as steps S2 to S5 of FIG. 5 are performed until step S107. Step S
If the determination at 103 is negative, the process proceeds to step S108,
Hereinafter, steps S6 to S8 in FIG. 5 are performed up to step S110.
Perform the same processing as.

In step S111, it is determined whether or not the door was unlocked when the main processing was performed immediately before and the door is currently locked. If the determination in step S111 is affirmative, the process proceeds to step S112, and the variable N is incremented by "1". In step S113, it is determined whether the variable N is "1". If the determination is negative, the procedure returns to step S101, and if the determination is affirmative, the step S101 is performed.
After proceeding to step 114 and resetting the timer 9, step S
Return to 101. The CPU 7 performs the main process described above every predetermined time and also performs the interrupt process at a time interval shorter than the time interval. The CPU 7
Since the interrupt processing performed by is common to the interrupt processing of FIG. 3 described above, description thereof will be omitted.

The processing of the flowchart of FIG. 2 described above can be summarized. First, in step S101, it is determined whether or not the ignition key has been operated from the on position to the off position. And if the determination is positive,
Initialize the variable N. Next, in step S103, it is determined whether or not the door is open. If the door is open, the interior light is unconditionally turned on by the processing of steps S104 to S107. At this time, since the flag is set to "0" by the process of step S104, the processes after step 52 of the interrupt process shown in FIG. 3 are not performed.
On the other hand, when the door is closed, it is determined whether or not the door was opened during the main processing performed immediately before (step S109), and if the determination is affirmative, the timer measurement is started, and as shown in FIG. The interior light is turned on by interrupt processing.
Next, in steps S111 and S112, unlocking →
Measure the number of times the door lock has changed. Then, in steps S113 and S114, the timer 9 is reset and the interior light is turned off only when the variable N is "1".

As described above, in the first embodiment, it is predicted whether an occupant will get in or out of the vehicle by measuring the number of times unlocking and door locking after the ignition key is once turned off. To do. That is, it is considered that the door lock operation is first performed after the ignition key is turned off when the vehicle is getting off. Therefore, if the number of detected times is 1, it is determined that the vehicle is getting off, and only in this case, the door lock operation is performed. The interior light is turned off by the operation, and the timer 9 is not reset in other cases. Therefore, even if you lock the door immediately after closing the door when getting on,
The interior light never goes out, which makes it easier to store luggage and insert keys into the key cylinder.

-Second Embodiment- In the second embodiment described below, it is determined that the vehicle is in the case of being unlocked after the ignition key is once turned off and the number of times the door is locked is two, Only in this case,
The interior light cannot be turned off by the door lock operation. Since the second embodiment has the same structure as the first embodiment shown in FIG. 1, the description of the structure will be omitted. Further, the CPU 7 performs the main process and the interrupt process as in the first embodiment.
Since it is common to the interrupt processing of FIG. 3, its description is omitted.

FIG. 4 is a flow chart showing the main processing performed by the CPU 7 of the second embodiment, and the operation of the second embodiment will be described based on this flow chart. Note that the processes of steps S201 to S212 of FIG. 4 are common to steps S101 to S112 of FIG. In step S213 of FIG. 4, it is determined whether the variable N is “2”. If the determination is positive, the process returns to step S201, and if the determination is negative, the process is step S201.
Proceed to 214. In step S214, the timer is reset and the process returns to step S201.

As described above, in the second embodiment, it is considered that the door is first locked after the ignition key is turned off, and the second door is locked when the passenger gets on again. Therefore, if the variable N is “2”, the interior light is not turned off even if the door is locked after the door is closed. On the other hand, the variable N
When is other than "2", the interior light is immediately turned off by the door lock operation. As a result, the interior light is not turned off even if the door is locked when the passenger gets on after the ignition is turned off.

Comparing the first embodiment with the second embodiment, the first embodiment turns off the interior light by the door lock operation only when the variable N is "1", while the second embodiment In the embodiment, when the variable N is other than "2", the interior light is turned off by the door lock operation. That is, the first embodiment exceptionally turns off the interior light by the door lock operation,
In the second embodiment, it is exceptionally impossible to turn off the interior light by the door lock operation.

In each of the above embodiments, the number of times the door lock is operated after the ignition key is operated to the off position is measured to determine whether the occupant is getting on or off the vehicle. ,
In another method, for example, when the door is opened, it may be determined that the outside handle is operated to get on and the inside handle is operated to get off. In the first embodiment, the variable N
Is reset only when the variable N is "1", and the second embodiment resets the timer only when the variable N is other than "2". However, even if the variable N is an odd number, the timer is reset. Good. In the above embodiment, the example in which the CPU executes the main process and the interrupt process at different timings has been described, but both processes may be combined into one flowchart and executed at the same timing. In each of the above embodiments, the timer measurement is performed only when the door changes from open to closed.
The timer may be measured even when the door lock is changed to the unlocked state or when the ignition key is changed from the on state to the off state. A switch may be provided to switch between the first embodiment and the second embodiment.

In the embodiment thus constructed, the door switch 3 and step S103 of FIG. 2 serve as door opening / closing detecting means, steps S103 and S109 of FIG. 2 serve as door closing determining means, and step S111 of FIG. Is the lock determination means, and the lighting / extinguishing circuit 5 and the CPU 7 are the interior light control means.
Step S113 corresponds to the boarding / alighting determination means, and step S112 in FIG. 2 corresponds to the lock number measuring means.

[0024]

As described above in detail, according to the present invention, it is detected whether the door is opened to get on or off to get off, and the door is opened to get on. In the case where the door is stolen, the interior light is not turned off even if the door is locked immediately after the door is closed, which makes it easy to put in and take out luggage and insert a key into the key cylinder. According to the second aspect of the present invention, the number of times the door is locked while the ignition key is in the off position is measured. Therefore, whether the door is opened for getting on or off for opening. You can easily and surely judge whether you are happy. According to the third aspect of the present invention, the number of times the door lock is being measured is reset when the ignition key is operated from the on position to the off position, so whether the door is opened for getting on or off Can accurately determine if the door was opened for. According to the invention of claim 4, it is considered that the door is first locked after the ignition key is operated to the off position when the passenger gets off the vehicle. ing. Therefore, the interior light is not turned off by the door lock operation when getting on. According to the invention of claim 5, it is considered that the door is locked for the second time after the ignition key is operated to the off position when the passenger is in the vehicle. Therefore, only at this time, the interior light cannot be turned off by the door lock operation. There is. Therefore, the interior light is not turned off by the door lock operation when getting on.

[Brief description of drawings]

FIG. 1 is a block diagram of a first embodiment of a vehicle lighting control device according to the present invention.

FIG. 2 is a flowchart showing main processing by a CPU of the first embodiment.

FIG. 3 is a flowchart showing interrupt processing by a CPU.

FIG. 4 is a flowchart showing main processing by a CPU of the second embodiment.

FIG. 5 is a flowchart showing main processing by a CPU of a conventional vehicle lighting control device.

[Explanation of symbols]

 1 IGN-ON switch 2 Door lock switch 3 Door switch 4 Input circuit 5 Turn-off circuit 6 Interior light 7 CPU 8 RAM 9 Timer

Claims (5)

[Claims] 1. A door opening / closing detecting means for detecting opening / closing of a door, a door closing judging means for judging whether an opened door is closed, and a door closing judgment means for judging that the door is closed. After that, the lock determination means determines whether the door is locked while the door is closed, and if the lock determination means does not determine that the door is locked, the interior light is kept for a predetermined time after the door is closed. In the vehicle lighting control device, which includes an interior light control means for turning off the interior light when it is determined that the door is locked, and whether the door is opened to get on or the door is opened to get off. Equipped with a boarding / alighting judging means for judging whether the door is opened, and when the boarding / alighting judging means judges that the door is opened for boarding, the interior light control means judges the lock judging means. Regardless of the outcome, the vehicle lighting control device, characterized in that the interior light for a predetermined time lighting. 2. The vehicle lighting control device according to claim 1, further comprising: a lock count measuring unit that measures the number of times the door is locked while the ignition key is in the off position. An illumination control device for a vehicle, comprising: determining whether a door is opened for getting on or off for opening based on the number of times measured by a lock number measuring means. 3. The vehicle lighting control device according to claim 2, wherein when the ignition key is operated from the on position to the off position, the lock count measuring means initially resets the measured count. An illumination control device for a vehicle, which is characterized by: 4. The vehicle lighting control device according to claim 2 or 3, wherein the interior light control means is configured to detect the lock determination means if the number of times measured by the lock number measuring means is not one. An illumination control device for a vehicle, which lights the interior light for a predetermined time after the door is closed regardless of the determination result. 5. The vehicle lighting control device according to claim 2 or 3, wherein the interior light control means controls the lock determination means only when the number of times measured by the lock number measuring means is two. An illumination control device for a vehicle, which lights the interior light for a predetermined time after the door is closed regardless of the determination result.