JPH115440A - Vehicle air purifier - Google Patents

Abstract

(57) [Problem] To start and stop the air purifier in conjunction with the start and stop of the engine without stopping the air purifier during the operation of the engine. When an ignition switch is turned on and an engine is started, a battery is charged by an alternator. Then, when it is detected that the battery voltage has risen to the first set voltage (for example, 13.3 V) or more, the motor 16 of the electric blower 12 is energized to start the air cleaner 5. When the ignition switch 6 is turned off and the engine stops, the charging of the battery 2 ends. And when the battery voltage is the second
When it is detected that the voltage has dropped below the set voltage (for example, 13.0 V) and that the door switch 7 has opened the vehicle door, the motor 16 of the electric blower 12 is opened.
The power supply to the air purifier 5 is stopped to stop the air purifier 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifying apparatus for a vehicle in which the operation state of an air purifier for purifying air in a vehicle compartment is linked to the start and stop of an internal combustion engine mounted on a vehicle. Things.

[0002]

2. Description of the Related Art Conventionally, in Japanese Utility Model Laid-Open Publication No. Sho 60-68818, a key switch is closed to start an engine, and an alternator is turned to charge the battery, so that the battery voltage exceeds a predetermined voltage. When it rises, it activates the air purifier that purifies the cabin, opens the key switch, stops the engine, and stops the alternator when the battery voltage drops below a predetermined voltage. 2. Description of the Related Art There has been proposed an air purifying apparatus for automobiles (hereinafter referred to as a first prior art) which is stopped.

Further, conventionally, in Japanese Patent Application Laid-Open No. 3-10928, the rotation of an engine is detected by detecting a ripple generated in a power supply line of an automobile. 2. Description of the Related Art There has been proposed an air purifying apparatus for an automobile (hereinafter referred to as a second conventional technique) in which an electric blower is stopped when a predetermined time has elapsed after the operation was instructed.

[0004]

However, in the first prior art, when the electric load of the vehicle becomes overloaded during operation of the engine and the battery voltage drops below a predetermined voltage, or When the battery voltage rises or falls near the level (judgment value), there is a problem that the air purifier immediately stops or the air purifier causes hunting (repeatedly operates and stops).

Further, in the second prior art, the ripples generated in the power supply line of an automobile become smaller year by year due to the recent high performance of the alternator, the increase in the size of the battery, and the increase in the electric load. Detection has become difficult. For example, if the determination value of the ripple that determines that the engine has rotated is large, the ripple generated in the power supply line at the time of starting the engine cannot be detected, and even if the operation switch of the air purifier is closed while the engine is rotating, it will be long before However, there is a problem that the electric blower of the air purifier does not operate. Also, if the determination value of the ripple that determines that the engine has rotated is small, it is determined that the engine is rotating even if a ripple occurs in the power supply line due to other factors except the rotation of the engine, and the electric blower is operated. There is a problem that it.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide an air purifying apparatus for a vehicle in which the start and stop of the air purifier can be linked to the start and stop of the engine without the air purifier stopping during operation of the engine. To provide. Also,
It is an object of the present invention to provide a vehicle air purifying device capable of preventing overdischarge of a battery while an engine is stopped and suppressing a reduction in battery life.

[0007]

Means for Solving the Problems Claims 1 and 2
According to the invention described in the above, when the on-board power supply is charged by starting the engine and driving the alternator,
The voltage of the vehicle-mounted power supply detected by the voltage detection means rises above a set value. In this case, it can be determined that the engine is rotating. Therefore, when the voltage of the vehicle-mounted power supply rises above the set value, the air in the cabin of the vehicle can be purified by activating the air purifier.

When the charging of the vehicle-mounted power supply is stopped by stopping the engine, the voltage of the vehicle-mounted power supply detected by the voltage detecting means drops to a set value or less. If this state continues for a predetermined time, or if the door state detecting means detects that the door of the vehicle has been opened, the electric load of the vehicle becomes overloaded while the engine is rotating, and It can be determined that the engine has stopped instead of the voltage of the engine having dropped. Therefore, when the above condition is satisfied, the air purifier is stopped.

As described above, the start and stop of the air purifier can be substantially linked with the start and stop of the engine without stopping the air purifier during rotation of the engine. Thus, overdischarge of the battery while the engine is stopped can be prevented, and the durability of the battery can be improved.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION

[Configuration of First Embodiment] FIGS. 1 to 4 show a first embodiment of the present invention.
FIG. 1 is a view showing a control system of an air purifying apparatus for an automobile, and FIG. 2 is a view showing a state where an air purifier is mounted on a ceiling.

The air purifying apparatus 1 for a vehicle according to the present embodiment is
An automobile 3 in which an alternator (not shown) for charging the battery 2 and an engine (not shown) for rotating this alternator (alternating current generator) are installed in an engine room.
An air purifier 5 attached to a substantially central portion of a ceiling 4 of the vehicle, and a purifier control device (hereinafter referred to as an ECU) for controlling the air purifier 5.
10).

The air purifier 5 is an air purifier (A / P) for purifying dirty air in the cabin of the automobile 3. In this embodiment, a filtration type overhead type device is used. This air purifier 5 includes a housing 11 and
The electric blower 12 installed in the housing 11
An electret filter 13 for collecting floating dust,
And a honeycomb activated carbon filter 14 for deodorizing air. The electric blower 12 includes a fan 15 for generating a circulating flow of air in the vehicle interior in the housing 11 and a motor 16 as a driving unit for driving the fan 15 to rotate.

The ECU 10 corresponds to the purifier control means of the present invention, and is a microcomputer having a well-known configuration including a CPU, a ROM, and a RAM. The ECU 10 inputs an IG signal when the ignition switch 6 of the engine of the automobile 3 is closed (ON), and inputs an OFF signal when the ignition switch 6 is opened (OFF). In addition, the ECU 10 has a voltage detecting means (not shown) for always detecting the voltage of the battery (vehicle power supply) 2 mounted on the vehicle.

Further, the ECU 10 has a door switch (corresponding to a door state detecting means of the present invention) which closes (ON) and opens (OFF) by detecting opening and closing of a door (not shown) of the automobile 3. 7 and an operation switch 8 for instructing start and stop of the air purifier 5 are connected. In the present embodiment, the ECU 10 inputs a door open signal when the door switch 7 is turned on, and inputs a door close signal when the door switch 7 is turned off.

The ECU 10 has a 10-minute timer for counting a first predetermined time (for example, 10 minutes), a 5-hour timer for counting a second predetermined time (for example, 5 hours), and the like. The external timer 17 is connected. Then, the ECU 10 controls the air purifier 5
Is activated, the air purifier 5 is operated. Specifically, the motor 16 is energized (ON). Also, ECU
When the stop of the air purifier 5 is commanded, the air purifier 5 is stopped. Specifically, the power supply to the motor 16 is stopped (OFF).

[Operation of First Embodiment] Next, a method of operating the air purifier 5 of the present embodiment will be briefly described with reference to FIGS. Here, FIG. 3 and FIG.
Is a flowchart showing an operation method of the air purifier 5 according to the first embodiment.

First, when the ignition switch 6 is turned on and the operation switch 8 of the air purifier 5 is turned on, the routine shown in FIG. 3 is started. Then, it is determined whether or not a door open signal has been input from the door switch 7 (door state detecting means: step S1). If this determination is NO, the process returns. If the determination result of step S1 is YES, it is determined whether the battery voltage (VB) has risen to a first set voltage (V1: for example, 13.3 V) or more (step S2). This determination result is NO
In the case of, the sleep mode (standby state) is entered until the determination result of step S2 becomes YES.

If the result of the determination in step S2 is YES, the main power supply of the air purifier (A / P) 5 is turned on (step S3). Specifically, the motor 16 is energized (O
N). At this time, for example, in an automobile provided with a pollution degree detecting means such as a gas sensor for detecting the degree of pollution of the cabin air, an air purifier (A / P) according to the degree of pollution of the cabin air.
5 is turned on and off.

Next, it is determined whether or not the battery voltage (VB) has fallen below the second set voltage (V2: for example, 13.0 V) (step S4). If the result of this determination is NO, it is determined whether or not a door closing signal has been input from the door switch 7 (door state detecting means: step S
5). If this determination is NO, the flow proceeds to the determination processing of step S3. Also, the determination result of step S5 is YE
In the case of S, the timer is started for 10 minutes (step S6). Next, it is determined whether or not a door closing signal has been input from the door switch 7 (door state detecting means: step S7). If the result of this determination is YES, the operation proceeds to the determination process of step S6.

On the other hand, if the decision result in the step S7 is NO, it is determined whether or not the timer for 10 minutes has expired (step S8). If the result of this determination is NO, it is determined whether or not the battery voltage (VB) has fallen below the second set voltage (V2: for example, 13.0 V) (step S9). If this determination is NO, the flow proceeds to the determination processing of step S7. If the determination result of step S9 is YES, the main power supply of the air purifier 5 is turned off.
FF is performed (step S10). Specifically, the power supply to the motor 16 is stopped (OFF). After that, step S2
It returns to the determination processing of.

On the other hand, if the decision result in the step S8 is YES, the battery voltage (VB) is changed to the second set voltage (V
2: for example, 13.0 V) or less (step S11). If this determination is NO, the flow proceeds to the determination processing of step S3. If the determination result of step S11 is YES, step S10
It proceeds to the determination processing of.

If the decision result in the step S4 is YES, a timer for 10 minutes is started (step S4).
12). Next, it is determined whether or not the timer for 10 minutes has expired (step S13). The result of this determination is YE
In the case of S, the process proceeds to the determination process of step S11. If the result of the determination in step S13 is NO, it is determined whether or not a door open signal has been input from the door switch 7 (door state detecting means: step S14). If this determination is NO, the flow proceeds to the determination processing of step S13. When the result of the determination in step S14 is YES, the process proceeds to the determination process in step S10.

Next, in order to provide redundancy in the event that detection of a door open signal or battery voltage becomes impossible, FIG.
The control shown in the routine is performed. It is determined whether or not a door open signal is input from the door switch 7 (door state detecting means: step S15). This determination result is N
If O, return. If the result of the determination in step S15 is YES, a 5-hour timer is started (step S16). Next, it is determined whether or not a door open signal has been input from the door switch 7 (door state detecting means: step S17). If the result of this determination is YES, the process proceeds to the determination process of step S16.

On the other hand, if the decision result in the step S17 is NO, it is determined whether or not the 5-hour timer has expired (step S18). If this determination is NO, the flow proceeds to the determination processing of step S17. If the result of the determination in step S18 is YES, the main power supply of the air purifier (A / P) 5 is forcibly turned off (step S18).
19). Then, it enters a sleep mode (standby state).

[Effects of the First Embodiment] As described above, when the engine is started and the driver depresses the accelerator pedal, the engine rotation speed increases and the alternator Is rotated at a high speed, the alternator starts charging the battery 2, and the battery voltage becomes the first set voltage (for example, 13.3 V).
Rise above. Therefore, when such a condition is satisfied, it can be determined that the engine is rotating. For this reason, when the battery voltage rises above the first set voltage, the air purifier 5 is started.

When the operation of the alternator is completed by stopping the engine, the charging of the battery 2 is stopped.
The battery voltage drops below the second set voltage (for example, 13.0 V). Then, this state is maintained for a predetermined time (for example, 10
Minutes), or when the door switch 7 detects that the door of the automobile 3 has been opened, the electric load of the vehicle becomes overloaded during rotation of the engine, and the voltage of the battery 2 drops. Instead, it can be determined that the driver has actually turned off the ignition switch 6 and the engine has stopped. Therefore, when the above condition is satisfied, the air purifier 5 is stopped, so that the air purifier 5 is not stopped during rotation of the engine, and hunting of the air purifier 5 can be prevented.

Therefore, the air purifier 5 can be automatically started and stopped without performing a troublesome operation. Further, even if the start and stop of the engine are not directly detected, the start and stop of the engine and the air purifier 5 can be performed.
Start and stop can be substantially linked. Even if the operation switch 8 is forgotten to be turned off, the engine is stopped, and when the door of the car 3 is opened, the electric blower 12 of the air purifier 5 is also stopped, so that the electric blower 12 operates after the engine is stopped, that is, the electric blower is operated. Continuation of energization to the blower 12 can be prevented. For this reason, it is possible to prevent overdischarge of the battery 2 while the engine is stopped.
The durability of the battery 2 can be improved.

[Configuration of Second Embodiment] FIGS. 5 to 12
FIG. 5 shows a second embodiment of the present invention, and FIG. 5 is a diagram showing a control system of an air cleaning device for a vehicle.

In this embodiment, the mode changeover switch 9 is used as an operation switch of the air purifier 5 and has a gas sensor (contamination degree detecting means) 18 for detecting the degree of contamination of the vehicle interior air. Note that, as the mode switch 9 is pressed after the ignition switch 6 is turned on, the instruction is repeated in the order of AUTO → Hi → Lo → OFF. Further, at the time of AUTO, the motor 16 is rotated at a high speed (Hi) if the degree of contamination of the vehicle interior air detected by the gas sensor 18 is equal to or more than a set value, and the motor 16 is rotated at a low speed (Hi) if smaller than the set value. Lo).

[Operation of Second Embodiment] Next, an operation method of the air purifier 5 of the present embodiment will be briefly described with reference to FIGS. Here, FIG. 6 to FIG.
5 is a flowchart showing an operation method of the air purifier 5 according to the first embodiment. This flowchart is executed when the ignition switch 6 is turned on.

First, when the ignition switch 6 is turned on, the routine shown in FIG. 6 is started. Then, the battery voltage (VB) becomes equal to the first set voltage (V1: for example, 13.3).
V) or not (step S)
20). If the result of this determination is NO, step S2
The sleep mode (standby state) is entered until the determination result of 0 becomes YES.

If the result of the determination in step S20 is YES
, The timer W is reset (step S2).
1). Next, automatic control is performed (step S22). Specifically, the motor 16 of the electric blower 12 is energized (ON). At this time, when the degree of pollution of the cabin air detected by the gas sensor 18 is equal to or higher than the set value, the motor 16
Are rotated at high speed (Hi), and when the degree of contamination is smaller than the set value, the motor 16 is rotated at low speed (Lo).

Next, it is determined whether or not the battery voltage (VB) has dropped below the second set voltage (V2: for example, 13.0 V) (step S23). The result of this determination is YE
In the case of S, the process proceeds to the determination process of step S30 of the routine of FIG. If the result of the determination in step S23 is NO, it is determined whether or not a door open signal has been input from the door switch 7 (door state detecting means: step S2).
4). If the result of this determination is NO, it is determined whether or not the mode switch 9 has been pressed (push) (step S25). If the result of this determination is YES, FIG.
The routine proceeds to the determination processing of step S40 of the routine. Also,
If the decision result in the step S25 is NO, the process returns to the decision process in the step S22.

If the result of the determination in step S24 is YES
In the case of, the power supply to the motor 16 of the electric blower 12 is stopped (OFF) (step S26). Next, it is determined whether or not a door closing signal has been input from the door switch 7 (door state detecting means: step S27). If this determination is NO, the process returns to the determination process of step S26. If the determination result of step S27 is YES, it is determined whether the battery voltage (VB) has risen to the first set voltage (V1: for example, 13.3 V) or more (step S28). If the result of this determination is YES, the process returns to the determination process of step S21. On the other hand, if the determination result in step S28 is NO, the electric blower 12
The power supply to the motor 16 is stopped (OFF) (step S29). Thereafter, the process returns to the determination processing of step S20.

If the result of the determination in step S23 is YES
In this case, the routine of FIG. 7 is started, and the timer W is started (step S30). Next, the battery voltage (V
It is determined whether or not B) has dropped below the second set voltage (V2: for example, 13.0 V) (step S31). If this determination is NO, the process returns to the determination processing of step S21. If the determination result of step S31 is YES, it is determined whether a predetermined time (for example, 10 minutes) has elapsed since the timer W was started (step S32). If this determination is YES, the process returns to the determination process of step S29.

On the other hand, if the decision result in the step S32 is NO, it is determined whether or not a door open signal is inputted from the door switch 7 (door state detecting means: step S3).
3). If the result of this determination is YES, the power supply to the motor 16 of the electric blower 12 is stopped (OFF) (step S34). Next, it is determined whether or not a door closing signal has been input from the door switch 7 (door state detecting means: step S35). If this determination is NO, the process returns to the determination process of step S34.

If the result of the determination in step S35 is YES
In the case of, the battery voltage (VB) is changed to the first set voltage (V
1: for example, 13.3 V) or more is determined (step S36). If the result of the determination is NO, the process returns to the determination process of step S29, and if the result of the determination is YES, the process returns to the determination process of step S21. If the decision result in the step S33 is NO, it is determined whether or not the mode switch 9 is pushed (push) (step S37). If this determination is NO, the process returns to the determination process of step S31. If the determination result in the step S37 is YES, the timer W is replaced with the timer X (step S38). Next, the process proceeds to the determination processing in step S41 of the routine in FIG.

If the result of the determination in step S26 is YES
In this case, the routine of FIG. 8 is started, and the timer X is reset (step S40). Next, the electric blower 12
Motor 16 is rotated at high speed (Hi) (step S4).
1). Next, a timer for 20 minutes is started (step S42). Next, the mode changeover switch 9 is pressed (p
push) (step S43). If the result of this determination is YES, the operation proceeds to the determination processing of step S60 in the routine of FIG. On the other hand, if the decision result in the step S43 is NO, the battery voltage (VB) becomes the second voltage.
It is determined whether or not the voltage has dropped below the set voltage (V2: for example, 13.0 V) (step S44). If the result of this determination is YES, step S50 of the routine of FIG.
It proceeds to the determination processing of.

If the decision result in the step S44 is NO, it is decided whether or not a door open signal is inputted from the door switch 7 (door state detecting means: step S4).
5). If the determination result is NO, it is determined whether a predetermined time (for example, 20 minutes) has elapsed since the start of the 20-minute timer (step S46). If this determination is NO, the process returns to step S43, and if the determination is YES, the process returns to step S22.

If the result of the determination in step S45 is YES
, The motor 16 of the electric blower 12 is stopped (O
FF) (step S47). Next, door switch 7
It is determined whether or not a door closing signal has been input from (step S48). This determination result is NO
In the case of, the procedure returns to the determination processing of step S47. Also,
If the determination result in step S48 is YES, the battery voltage (VB) is changed to the first set voltage (V1: for example, 13.3).
V) or not (step S)
49). If the result of this determination is NO, step S29
The process returns to the determination process of step S40 if the determination result is YES.

If the result of the determination in step S44 is YES
In this case, the routine of FIG. 9 starts, and the timer X is started (step S50). Next, the battery voltage (V
B) is determined to be lower than the second set voltage (V2: for example, 13.0V) (step S51). If this determination is NO, the process returns to the determination processing of step S40. If the result of the determination in step S51 is YES, it is determined whether or not a predetermined time (for example, 10 minutes) has elapsed since the timer X was started (step S52). If this determination is YES, the process returns to the determination process of step S29.

On the other hand, if the decision result in the step S52 is NO, it is determined whether or not a door open signal is inputted from the door switch 7 (door state detecting means: step S5).
3). If the determination result is YES, the motor 16 of the electric blower 12 is stopped (OFF) (step S5).
4). Next, it is determined whether or not a door closing signal is input from the door switch 7 (door state detecting means: step S
55). If the result of this determination is NO, step S5
It returns to the determination processing of No. 4.

If the result of the determination in step S55 is YES
In the case of, the battery voltage (VB) is changed to the first set voltage (V
1: for example, 13.3 V) or more is determined (step S56). If this determination is NO, the process returns to step S29, and if the determination is YES, the process returns to step S40.

If the decision result in the step S53 is NO, the mode changeover switch 9 is pressed (push).
h) is determined (step S57). If this determination is NO, the process returns to the determination processing of step S51. If the determination result in the step S57 is YES, the timer X is replaced with the timer Y (step S5).
8). Next, the process proceeds to the determination processing in step S61 of the routine in FIG.

In addition, the decision result in the step S43 is YES.
In this case, the routine of FIG. 10 is started, and the timer Y is reset (step S60). Next, the electric blower 1
The second motor 16 is rotated at low speed (Lo) (step S6).
1). Next, a timer for 20 minutes is started (step S62). Next, the mode changeover switch 9 is pressed (p
ush) (step S63). If the result of this determination is YES, the operation proceeds to the determination processing of step S70 in the routine of FIG.

On the other hand, if the decision result in the step S63 is NO, the battery voltage (VB) is changed to the second set voltage (V
2: for example, 13.0 V) or less (step S64). If the result of this determination is YES, the flow proceeds to the determination process of step S80 in the routine of FIG.

On the other hand, if the decision result in the step S64 is NO, it is decided whether or not a door open signal is inputted from the door switch 7 (door state detecting means: step S6).
5). If the determination result is NO, it is determined whether a predetermined time (for example, 20 minutes) has elapsed since the start of the 20-minute timer (step S66). If this determination is NO, the process returns to step S63, and if the determination is YES, the process returns to step S22.

If the result of the determination in step S65 is YES
, The motor 16 of the electric blower 12 is stopped (O
FF) (step S67). Next, door switch 7
It is determined whether or not a door closing signal has been input from (step S68). This determination result is NO
In the case of, the procedure returns to the determination processing of step S67. Also,
If the determination result in step S68 is YES, the battery voltage (VB) is changed to the first set voltage (V1: for example, 13.3).
V) or not (step S)
69). If the result of this determination is NO, step S29
The process returns to the determination process of step S60. If the determination result is YES, the process returns to the determination process of step S60.

If the result of the determination in step S63 is YES
In this case, the routine of FIG. 11 starts, and the timer Z is reset (step S70). Next, the electric blower 1
The power supply to the second motor 16 is stopped (OFF) (step S71). Next, it is determined whether or not the mode switch 9 has been pressed (push) (step S72). If the result of this determination is YES, the process returns to the determination process of step S21.

On the other hand, if the decision result in the step S72 is NO, the battery voltage (VB) is changed to the second set voltage (V
2: for example, 13.0 V) or less (step S73). If this determination is NO, the process returns to the determination process of step S70.

If the result of the determination in step S73 is YES
, The timer Z is started (step S7).
4). Next, the battery voltage (VB) is changed to the second set voltage (V
2: for example, 13.0 V) or less (step S75). If this determination is NO, the process returns to the determination process of step S70. If the determination result of step S75 is YES, it is determined whether or not a predetermined time (for example, 10 minutes) has elapsed since the timer Z was started (step S76). If this determination is YES, the process returns to the determination process of step S29.

If the decision result in the step S76 is NO, the mode changeover switch 9 is pressed (push).
h) is determined (step S77). If this determination is NO, the process returns to the determination process of step S75. If the determination result in the step S77 is YES, the timer W is replaced with the timer X (step S7).
8). Next, the process proceeds to the determination processing of step S22.

If the result of the determination in step S64 is YES
In this case, the routine of FIG. 12 is started, and the timer Y is started (step S80). Next, it is determined whether or not the battery voltage (VB) has fallen below the second set voltage (V2: for example, 13.0 V) (step S8).
1). If the result of this determination is NO, step S60
It returns to the determination processing of. If the determination result of step S81 is YES, it is determined whether or not a predetermined time (for example, 10 minutes) has elapsed since the start of the timer Y (step S82). If this determination is YES, the process returns to the determination process of step S29.

If the decision result in the step S82 is NO, it is decided whether or not a door open signal is inputted from the door switch 7 (door state detecting means: step S8).
3). If the result of this determination is YES, the power supply to the motor 16 of the electric blower 12 is stopped (OFF) (step S84). Next, it is determined whether or not a door closing signal has been input from the door switch 7 (door state detecting means: step S85). If this determination is NO, the process returns to the determination process of step S84.

If the result of the determination in step S85 is YES
In the case of, the battery voltage (VB) is changed to the first set voltage (V
1: for example, 13.3 V) or more is determined (step S86). If this determination is NO, the process returns to the determination process of step S29, and if the determination is YES, the process returns to the determination process of step S60.

If the decision result in the step S83 is NO, the mode changeover switch 9 is pressed (push).
h) is determined (step S87). If this determination is NO, the process returns to the determination process of step S81. If the determination result in the step S87 is YES, the timer Y is replaced with the timer Z (step S8).
8). Next, the process returns to the determination processing of step S71.

[Other Embodiments] In this embodiment, a filtration-type overhead type air purifier 5 is used as an air purifier.
However, an electrostatic overhead type air purifier may be used. In addition, a stationary type, a built-in type in a rear cooler, or an air purifier suspended in a trunk room may be used.

In the present embodiment, the door switch 7 that closes (on) and opens (off) by detecting opening and closing of a door (not shown) of the automobile 3 is provided as door state detection means. Turn on the power of lighting devices (not shown) such as room lamps that turn on and off when the doors open and close.
Door state detecting means for detecting the off state may be provided. Further, as the door switch 7, either a contact type or a photoelectric type may be used. Note that the opening / closing of the door may be detected by detecting lock / unlock of the door lock as the door state detecting means.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a control system of a vehicle air cleaning device (first embodiment).

FIG. 2 is an explanatory view showing a state in which the air purifier is mounted on a ceiling (first embodiment).

FIG. 3 is a flowchart showing a method of operating the air purifier (first embodiment).

FIG. 4 is a flowchart showing a method of operating the air purifier (first embodiment).

FIG. 5 is a configuration diagram showing a control system of an air cleaning device for a vehicle (second embodiment).

FIG. 6 is a flowchart illustrating a method of operating the automotive air cleaning device (second embodiment).

FIG. 7 is a flowchart illustrating a method of operating the automotive air cleaning device (second embodiment).

FIG. 8 is a flowchart illustrating a method for operating the automotive air cleaning device (second embodiment).

FIG. 9 is a flowchart illustrating a method of operating the automotive air cleaning device (second embodiment).

FIG. 10 is a flowchart illustrating a method for operating the automotive air cleaning device (second embodiment).

FIG. 11 is a flowchart illustrating a method of operating the automotive air cleaning device (second embodiment).

FIG. 12 is a flowchart illustrating an operation method of the air purifier (second embodiment).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air purifier for vehicles (air purifier for vehicles) 2 Battery (in-vehicle power supply) 3 Automobile 5 Air purifier 6 Ignition switch 7 Door switch (door state detecting means) 8 Operation switch 9 Mode switch 10 ECU (Purifier control Means) 12 Electric blower 15 Fan 16 Motor 17 External timer

Claims (2)

[Claims] (A) an air purifier for purifying air in a vehicle cabin; (b) voltage detecting means for detecting a voltage of a vehicle-mounted power supply mounted on the vehicle; When the voltage of the vehicle-mounted power supply detected by the voltage detection unit is equal to or higher than a set value, the air purifier is started, and the state in which the voltage of the vehicle-mounted power supply detected by the voltage detection unit is equal to or lower than the set value has continued for a predetermined time. And a purifier control means for stopping the air purifier. (A) an air purifier for purifying air in a vehicle cabin; (b) voltage detecting means for detecting a voltage of a vehicle-mounted power supply mounted on the vehicle; and (c) a state of a vehicle door. (D) when the voltage of the vehicle-mounted power supply detected by the voltage detecting means is equal to or higher than a set value, activating the air purifier and detecting the voltage by the voltage detecting means. Purifier control means for stopping the air purifier when the voltage of the vehicle-mounted power supply is equal to or lower than a set value and the door state detecting means detects that the door is opened. apparatus.