JP2009035173A - Air-conditioning system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently clean contamination of air in a cabin of a motor vehicle. <P>SOLUTION: The air-conditioning system for the vehicle is provided with an air passage 11 provided with a damper for opening/closing an external air suction port and extending into a roof 2; a suction port 12 of in-cabin air opened to an indoor side surface of the roof while communicated with the air passage and auxiliarily provided with a filter 13 for cleaning air; an air blowing port 9 communicated with the air passage and blowing the cleaned air passing through the filter into the cabin; a fan 17 for blowing the cleaned air from the air blowing port into the cabin; a contaminated air detection sensor 16 auxiliarily provided in the cabin; and control means 20, 21 for driving/controlling the fan and the damper when receiving the detection signal from the contaminated air detection sensor. When the control means receives the contamination detection signal from the contaminated air detection sensor, the damper is subjected to closing operation and the fan is driven to blow the cleaned air from the air blowing port into the cabin. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle air conditioning system, and more particularly to purifying air contaminated by smoking or the like in a passenger compartment and then circulating it as clean air in the passenger compartment.

  2. Description of the Related Art Conventionally, a vehicle air conditioner that purifies air in a passenger compartment when smoked in a car has been proposed. For example, in the vehicle air conditioner disclosed in Japanese Patent Laid-Open No. 5-278458 (Patent Document 1), It is configured to operate with the opening and closing of the ashtray as a trigger. Specifically, a cigarette suction port provided in the upper part of an ashtray having an air purifying filter, a damper for switching between a state of introducing outside air outside the automobile and a state of circulating air in the passenger compartment, and via the damper A fan that blows air into the passenger compartment, ashtray state determining means for determining the open / closed state of the ashtray, and control means for controlling the fan and the damper are provided. In the air conditioner, when an automobile occupant opens the ashtray during smoking, the ashtray state determination means determines that the ashtray has been opened and sends a determination signal to the control means, and the control means closes the damper and circulates the air. The fan is automatically operated at the same time. Dirty air in the passenger compartment is sucked into the cigarette inlet, cleaned with an air purifying filter, and discharged into the passenger compartment through the air outlet.

However, in Patent Document 1, since the opening and closing of the ashtray is a trigger for starting the operation of the vehicle air conditioner, there is a problem that the air conditioner does not operate until the ashtray is opened after starting to smoke.
In addition, because the cigarette suction port is provided in the upper part of the ashtray of the console panel, for example, when an occupant seated in the rear seat smokes cigarettes, the cigarette smoke is sucked through the occupant in the driver seat or the passenger seat. There is a problem in that it is sucked into the mouth, causing discomfort to the driver or passenger in the passenger seat.

In addition, when the occupant smokes the cigarette smoke, the cigarette smoke flows upward, but the cigarette suction port is located at the top of the ashtray and is lower than the smoking position of the occupant. Can not be sucked into the cigarette inlet.
Furthermore, since the vehicle air conditioner of Patent Document 1 operates by opening and closing the ashtray, for example, when exhaust gas is filled in the passenger compartment, in the case of air pollution that does not require opening and closing the ashtray other than cigarette smoke. There is a problem that the vehicle air conditioner does not operate.

JP-A-5-278458

  This invention is made | formed in view of the said problem, and makes it the subject to purify efficiently the air pollution in the vehicle interior of a motor vehicle.

In order to solve the above-mentioned problems, the present invention includes an air passage that includes a damper that opens and closes an outside air suction port and that extends into the roof.
A suction port for vehicle interior air that communicates with the air passage and opens on the indoor side surface of the roof, and is provided with a filter for air purification;
A blower opening that communicates with the air passage and blows clean air that has passed through the filter into the vehicle interior; and a fan that blows clean air from the blower opening into the vehicle interior;
A contaminated air detection sensor installed in the passenger compartment;
A control means for receiving a detection signal from the contaminated air detection sensor and drivingly controlling the fan and the damper;
The control means closes the damper based on the above from the contaminated air detection sensor, and drives the fan to blow clean air from the air outlet into the vehicle interior. providing.

As the contaminated air detection sensor provided in the vehicle interior, an odor sensor and a smoke sensor are mainly used. However, the sensor is not limited to air pollution during smoking, and transmits a detection signal when the content of the specified air component exceeds a set value. But you can.
The contaminated air detection sensor is configured to continuously transmit the measured detection value as a detection signal to the control means, and to operate the fan and the damper when a threshold value preset by the control means is reached. In addition, it is good also as a structure which gives a threshold value to sensor itself and transmits a detection signal to a control means when it becomes more than a threshold value. An electronic control unit (ECU) is preferably used as the control means.

  In the air conditioning system of the present invention, a suction port for indoor air is provided on the indoor side surface of the roof in communication with the air passage in the roof, so that when smoke rises during smoking, it is sucked into the suction port and Since a filter for air purification is attached, the smoke that has risen can be purified by the filter and sucked into the air passage in the roof. That is, before the air conditioning system is activated at the start of smoking, smoke rising in the passenger compartment can be sucked from the suction port and passed through the filter and stored as clean air in the air passage in the roof.

In the prior art of Patent Document 1, the open / closed state of the ashtray was used as a trigger for starting the operation of the vehicle air conditioner. However, the vehicle air conditioning system of the present invention uses the detection signal of the contaminated air detection sensor provided in the vehicle interior. It is a trigger. That is, when the air in the passenger compartment of the automobile gets dirty, the damper is closed by the control of the control means and the operation of the fan starts, and the purified air is blown into the passenger compartment in the air passage purified through the filter. A negative pressure is generated in the air passage, and the contaminated air in the passenger compartment can be efficiently sucked into the suction port. In other words, it is possible to form a circulation path for purifying contaminated air in the passenger compartment at the air inlet and sucking it into the air passage and blowing this clean air into the passenger compartment, thereby replacing the contaminated air in the passenger compartment with clean air. .
As described above, even when the ashtray is opened after the start of smoking, if the air in the passenger compartment is contaminated, the air conditioning system can be operated to clean the air in the passenger compartment.
The air passage that sucks the contaminated air of the present invention and blows it out as clean air may also be used as an air passage for air conditioning ventilation that is already piped in the automobile.

In the present invention, it further comprises a window and / or door opening and closing sensor, the opening and closing sensor is connected to the control means,
When the control means receives the contamination detection signal from the contamination air detection sensor and also receives the opening signal from the opening / closing sensor, the control means issues a closing instruction display of the opened window and / or door, and the vehicle interior and the air It is preferable to circulate air between the passages.

In other words, when circulating air that purifies polluted air in the passenger compartment at the inlet and sucks it into the air passage and blows this clean air into the passenger compartment without introducing outside air that may be contaminated, Air can be purified quickly. Therefore, an instruction to close the open window and / or door is displayed.
Although the window may be controlled to be automatically closed, it is preferable that the occupant closes the window or the like by displaying a closing instruction display because the occupant may cause unexpected damage if the window is automatically closed.

Alternatively, it includes a window and / or door opening / closing sensor and an outside-contaminated air detection sensor for detecting outside air pollution, and these sensors are connected to the control means,
When the control means receives the contamination detection signal from the contaminated air detection sensor, the closing signal from the open / close sensor, and the non-contamination signal from the outside contamination air detection sensor, the control means instructs the opening of the closed window and / or door. A display may be given, and the air in the passenger compartment may be released to the outside through the opened window and / or door.

  As described above, when the external air detection sensor is provided to detect the dirt of the outside air, when the outside air is not dirty and the interior of the vehicle is dirty, the window and / or the door is opened and the vehicle is opened. Combining the operation of releasing the indoor contaminated air to the outside, the air in the passenger compartment can be quickly cleaned.

Further, in the air conditioning system of the present invention, the suction port and the air blowing port communicating with the air passage are opened on the indoor side surface of the upper roof for each seat, the fan of each air blowing port is attached, and the contaminated air detection is performed. Install a sensor for each seat,
The control means drives the fans above the seat other than the fan above the seat where the contaminated air detection sensor from which the contamination detection signal is output is driven, and sucks at the suction port from the seat side that generates the contaminated air. A configuration may be adopted in which clean air is blown out from an air blowing port above another seat.

With this configuration, for example, when the occupant in the rear seat smokes cigarettes, the smoke of cigarettes can be sucked into the upper suction port, and the smoke can be prevented from flowing to other occupants who do not smoke, The passengers will not be uncomfortable.
In addition, if a contaminated air detection sensor is also provided for each seat, the seating position of the smoking occupant can be detected, and by operating the fan of the air outlet provided above the detected seat, the suction port above the smoking seat is operated. A large negative pressure can be generated to efficiently inhale smoke.
Thus, by providing a suction port with a filter, a contaminated air detection sensor, and a fan for each seat, the air around each seat can be controlled, and in other words, the same effect as smoke separation can be achieved.

As described above, according to the vehicle air-conditioning system of the present invention, the detection of the contaminated air detection sensor is activated as a trigger. Therefore, when the air in the passenger compartment of the automobile becomes dirty, the cigarette starts to be sucked and then the ashtray is opened. Even so, the air conditioning system can be automatically operated.
In addition, since the contaminated air detection sensor is used, not only air pollution in the passenger compartment due to tobacco but also air pollution due to exhaust gas or the like can be detected.
Furthermore, since the suction port with the air cleaning filter is provided in the roof, even before the contamination detection by the contaminated air detection sensor, the rising smoke during smoking is sucked by the suction port, and the suction port is provided. It can be cleaned with a filter.

Hereinafter, an embodiment of an air conditioning system provided in an automobile of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of the present invention.

  As shown in FIGS. 1 and 2, the air conditioning system 10 includes an air passage forming duct (hereinafter referred to as an air duct) 11A of an air suction unit 7 of an air conditioner A mounted in an engine room (X) at the front of the automobile 1. The air duct 11B communicated with the pipe is routed along the left and right sides of the floor 8 of the passenger compartment, and the air duct 11B is piped to the roof 2 through the air duct 11C provided inside the center pillars 3 on the left and right sides. 2, the air duct 11D extends so as to be positioned above the seats 4A to 4D.

As shown in FIG. 3B, an opening / closing damper 15 is attached to the tip of the air duct 11A of the air suction unit 7 of the air conditioner A. When the damper 15 is closed, the introduction of outside air is blocked.
As shown in FIG. 3 (A), in the air duct 11D piped inside the roof 2, a vehicle interior air suction port 12 is opened to the indoor side above each seat 4, and each suction port 12 is connected to the air. It communicates with the duct 11D. In this embodiment, since four seats 4A to 4D are provided on the front, rear, left and right, the roof 2 is provided with suction ports 12 at four locations. Each suction port 12 is provided with a filter 13 for air purification.

Moreover, the ventilation port 9 opened in the indoor side surface of the roof is provided adjacent to the suction port 12, and the ventilation port 9 communicates with the air duct 11D, and the suction port 12 and the ventilation port 9 are connected via the air duct 11D. Is communicated. A fan 17 is attached to the inner side of each air outlet 9 so that clean air is blown out from above each seat 4.
Furthermore, the odor sensors 16A to 16D constituting the contaminated air detection sensor are provided on the vehicle interior surface of the roof adjacent to the suction port 12 provided for each seat 4. Instead of the odor sensor 16, a smoke sensor or a sensor that detects air contamination from the air component may be used.

  Further, a body ECU 20 connected to the odor sensor 16, the door opening / closing sensor 5 and the window opening / closing sensor 6, and an air conditioner ECU 21 connected to the fan 17 and the damper 15 are arranged in the instrument panel of the automobile 1. Body ECU20 and air-conditioner ECU21 comprise a control means, and are connected by LAN.

As shown in FIG. 4, the body ECU 20 includes an air state detection unit 22, a door control unit 23, and a window control unit 24.
The air condition detection unit 22 is connected to the odor sensor 16 provided in each seat 4 and compares the measured value from each odor sensor 16 with a predetermined threshold value to determine the condition of the air in the passenger compartment. It also has a memory (not shown) and stores the previous judgment result of the air condition in the passenger compartment. When the air is clean, the flag is “0”, and when air pollution is detected, the flag Is stored as “1”.

The door control unit 23 and the window control unit 24 are connected to the air condition detection unit 22. The door control unit 23 includes a memory 23 a that is connected to each door opening / closing sensor 5 and the interior light 18 (map light) of the automobile 1 and stores an opening / closing state of the door from an opening signal or a closing signal from the door opening / closing sensor 5. Yes. The door control unit 23 detects opening / closing of the door and stores it in the memory 23a. When the door is opened, the interior light 18 as a closing warning is turned on to display a warning to the passenger that the door is open. Yes.
The window control unit 24 is connected to each window opening / closing sensor 6 of the automobile 1, and includes a memory 24 a that stores the opening / closing state of the window opening / closing sensor 6. The window control unit 24 detects an open / close state based on an open signal or a close signal from the window open / close sensor 6, stores the open / close state in the memory 24a, and automatically opens / closes the window. Note that a warning display for opening and closing the window may be issued to cause the passenger to open and close.

The air conditioner ECU 21 includes a fan control unit 25 and a damper control unit 26.
The fan control unit 25 is connected to the air condition detection unit 22 of the body ECU 20 and to the fan 17 provided on the roof 2 of each seat 4, and controls the operation and stop of the fan 17. Further, a memory 25a for detecting and storing the operating state of the fan 17 is provided.
The damper control unit 26 is connected to the air state detection unit 22 of the body ECU 20 and is connected to the damper 15 provided in the air duct 11 </ b> A to open and close the damper 15. In addition, a memory 26a for detecting the opening / closing state of the damper 15 and storing it is provided.

Next, the operation of the air conditioning system 10 of the present invention will be described.
First, operation | movement of the air conditioning system 10 when the air in a vehicle interior becomes dirty is demonstrated.
When the air conditioning system 10 is activated, the flag indicating the state of air in the vehicle compartment stored in the air state detection unit 22 is “0”.
As shown in FIG. 5A, in step S10, the air condition detection unit 22 of the body ECU 20 acquires the measurement values of the four odor sensors 16 provided on the roof 2.
In step S11, the measured value of the odor sensor 16 is compared with a threshold value stored in advance to determine the air condition in the passenger compartment. If even one of the four odor sensors 16 is determined to be dirty, the process proceeds to step S12.
In step S12, it is determined whether or not the flag is “0”. In the case of “0”, the process proceeds to step S13. If “1”, the process returns to step S10.
In step S <b> 13, the air condition detection unit 22 transmits operation signals to the fan control unit 25, the damper control unit 26 of the air conditioner ECU 21, the door control unit 23 of the body ECU 20, and the window control unit 24.
In step S14, the flag is set to “1” and stored in the memory of the air condition detection unit 22.

Thereafter, the fan control unit 25, the damper control unit 26, the door control unit 23, and the window control unit 24 perform the following operations in parallel.
FIG. 5B shows the operation of the fan control unit 25. In step S20, the fan control unit 25 detects whether the current state of each fan 17 is operating or stopped, and a memory 25a in the fan control unit 25 is displayed. To remember. That is, the state of the fan 17 stored in the memory 25a is the same as the state of the fan 17 immediately before the air conditioning system 10 operates.
In step S21, the fan 17 provided in the seat 4 where air pollution is detected by the odor sensor 16 is stopped, and the fan 17 provided in the seat 4 where air pollution is not detected is operated. For example, when the odor sensor 16A detects air contamination of the seat 4A, the fan 17A provided in the seat 4A is stopped and the fans 17B to 17D are operated.
That is, the fan 17 is stopped when the fan 17 provided in the seat 4 where air contamination is detected is operating, and the stop is continued when the fan 17 is stopped. Further, the operation is continued when the fan 17 provided in the seat 4 where air contamination is not detected is operating, and the operation is performed when the fan 17 is stopped.

FIG. 6A shows the operation of the damper control unit 26. In step S30, the damper control unit 26 detects whether the current state of the damper 15 is open or closed, and stores it in the memory 26a in the damper control unit 26. Remember.
In step S31, it is determined whether or not the damper 15 is opened. If it is open, the process proceeds to step S32. If closed, return to start.
In step S32, the damper 15 is closed.

FIG. 6B shows the operation of the door control unit 23. In step S40, the door control unit 23 detects whether the current state of the door opening / closing sensor 5 is open or closed, and the memory in the door control unit 23 is displayed. 23a is stored.
In step S41, the door opening / closing sensor 5 determines whether the door is open or closed. If it is open, the process proceeds to step S42. If closed, return to start.
In step S42, the interior light 18 is turned on to warn the passenger that the door is open. The passenger manually closes the door by the warning.
Further, not only the interior light 18 but also a warning means composed of sound and display may be provided to warn that the door is open.

FIG. 6C shows the operation of the window control unit 24. In step S50, the window control unit 24 detects whether the current state of the window is open or closed, and stores it in the memory 24a in the window control unit 24. To do.
In step S51, it is determined whether to open or close based on a signal from the window opening / closing sensor 6. If the window is open, the process proceeds to step S52. If closed, return to start.
In step S52, the window control unit 24 automatically closes the window by the power window.
Note that a warning means including voice and display may be provided, and a warning sound may be sounded when the window is closed to inform the occupant that the window is closed. The window may not be closed automatically, but a warning may be given to the occupant by voice or display that the window is open, and the occupant may close the window manually or by operating a power window button.

The air conditioning system 10 performs the operations of the flowcharts shown in FIGS. 5 and 6 at predetermined intervals, for example, once per minute.
In addition, a switch may be provided in the air conditioning system 10, and when the air conditioning system 10 is operated only when a passenger turns on the switch, the operation of the flowchart may be performed at a cycle of, for example, 10 msec.
Furthermore, when the odor or smoke detected by the odor sensor 16 reaches a preset threshold value, if the contamination detection signal is transmitted to the air condition detection unit 22, the contamination detection signal is sent to the air condition detection unit 22. When transmitted, the air condition detection unit 22 may be operated to perform the operation of the flowchart.

Thus, the damper 15 is closed to circulate the air in the vehicle interior, and when the window and door are open, the window and door are closed to seal the vehicle interior. Further, in this state, the fan 17 provided in the seat 4 where air pollution is detected by the odor sensor 16 is stopped, and the fan 17 provided in the seat 4 where air pollution is not detected is operated.
At this time, a downward wind is emitted to the seat 4 from the fan 17 of the seat 4 where no air contamination is detected, so that the air in the seat 4 where air contamination is detected rises and is sucked into the suction port 12. The dirty air is purified by the air purifying filter 13 of the suction port 12 to become clean air, and is sent again from the fan 17 operating through the air duct 11 into the vehicle interior.

When the air conditioning system 10 is operated to purify the air in the vehicle interior, and it is determined from the measured value of the odor sensor 16 in step S11 of FIG. At 60, the air condition detection unit 22 issues a stop signal to the fan control unit 25, the damper control unit 26, the door control unit 23, and the window control unit 24.
In step S61, the memory flag of the air condition detection unit 22 is set to “0”.

Steps S62 and S63 show the operation of the fan control unit 25. In step S62, the fan control unit 25 reads the state of the fan 17 stored in the memory 25a in step S13.
In step S63, the fan control unit 25 returns the fan 17 to the read state. That is, what is stored in the memory 25a is the state of the fan 17 immediately before the operation of the air conditioning system 10, and if it is stored that the fan 17 has been stopped, the fan 17 is stopped and the fan 17 is operated. If it is stored that it was in the state, the operation of the fan 17 is continued.

  In the damper control unit 26, the door control unit 23, and the window control unit 24, similarly to the operation of the fan control unit 25 shown in steps S31 and S32, the damper 15 stored in the memories 26a, 23a, and 24a, the door opening / closing sensor 5, The state immediately before the operation of the air-conditioning system 10 of the window opening / closing sensor 6 is read out and returned to the read out state.

According to the above configuration, since the fan and the damper are operated with the detection value detected by the contaminated air detection sensor reaching the threshold value, if the air in the vehicle interior of the automobile 1 becomes dirty, Thus, the operation of the air conditioning system can be started automatically without the passenger performing an operation such as opening the ashtray. In addition, the interior air of the vehicle interior can be purified not only by opening and closing of the ashtray, but also by the contamination of the interior air of the vehicle interior due to other factors as well as the air contamination of the interior of the vehicle interior due to smoking.
Furthermore, since the suction port 12 with the air purifying filter 13 is provided in the roof 2, upward smoke generated by smoking can be sucked from the suction port 12 even before the pollution degree of the air in the passenger compartment reaches the threshold value.
Also, when the door or window is opened when the fan is driven and the damper is closed, the polluted air in the vehicle interior is sucked from the suction port 12 and blown into the vehicle interior as clean air for air circulation. Since the warning sign for closing is issued, the occupant can manually close the door or window and circulate in a sealed state in the passenger compartment to quickly clean the air in the passenger compartment.

The window control unit 24 does not detect only the opening or closing of the window from the opening signal and closing signal of the window opening / closing sensor 6, but detects the opening degree of the window and stores it in the memory 24a so that the air conditioning system 10 operates. When the air in the passenger compartment is purified, the closed window may be returned to the state stored in the memory 24a.
In the present invention, the air conditioning system is started to operate with the measurement value of the contaminated air detection sensor as a trigger. The measured value may be used as a trigger.

  Further, each suction port 12 may be provided with an open / close lid, and is normally closed, and may be closed when the air state detection unit 22 detects air contamination with the odor sensor 16. In this case, only the open / close lid of the suction port 12 above the seat where air contamination is detected is opened, and the open / close lids of the other suction ports 12 of the seat 4 are kept closed. Since only the suction port 12 of the seat 4 where air dirt is detected is opened, dirty air can be sucked in quickly and reliably.

  The fan control unit 25 may have a function of controlling the air volume of the fan 17. The fan control unit 25 changes the air volume of the fan 17 according to the degree of air contamination detected by the odor sensor 16 by the air state detection unit 22. When the degree of air contamination is large, the air volume of the fan 17 is increased, and the dirty air is quickly sucked into the suction port 12.

FIG. 8 shows a modification of the first embodiment.
The air blowing port 9 and the fan 17 are not provided above each seat 4 of the roof 2, but are provided at one place in the center of the air duct 11D of the roof 2.
When the fan control unit 25 receives the operation signal from the air state detection unit 22, the fan control unit 25 detects whether the current state of the fan 17 is operating or stopped, and stores it in the memory 25 a in the fan control unit 25. When the fan 17 is stopped, the fan 17 is operated, and the air in the vehicle compartment is sucked from the suction port 12 of each seat 4.
According to this configuration, since only one fan 17 is provided, the configuration of the air conditioning system 10 can be simplified as compared to the case where a fan is provided in each seat.

The fan 17 may not be provided on the roof 2 but may also be used as an air conditioner fan provided in a console panel that operates in conjunction with the operation of the air conditioner. In this case, the air duct 11 extends to the console panel, and the air in the air duct 11 sucked from the suction port 12 is returned from the air conditioner fan to the vehicle interior. At this time, the direction of the air conditioner fan may be changed so that the air direction is directed toward the suction port 12 of the seat 4 where air contamination is detected, and the dirty air may be sucked into the suction port 12 quickly.
Moreover, you may provide both the fan 17 provided for every seat 4 of the roof 2, and the air-conditioner fan.
In addition, since another structure and an effect are the same as that of 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

FIG. 9 shows a second modification of the first embodiment of the present invention.
The left and right air ducts 11B piped to the floor 8 are provided with clean air blowing ports 9 at the side portions corresponding to the front, rear, left and right seats 4, and fans 17 are attached to the inner side of the blowing ports 9, respectively. Clean air is blown off to the feet of the seat 4.
In addition, since another structure and an effect are the same as that of 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

FIG. 10 shows a second embodiment.
In addition to the configuration of the first embodiment, an external odor sensor 19, which is an outside-contaminated air detection sensor, is provided outside the passenger compartment and in the rain-preventing portion of the door window glass on the driver's seat side of the vehicle. Detected.
The air condition detection unit 22 is connected to the external odor sensor 19, compares the measured value of the external odor sensor 19 with a threshold value to determine that there is no air contamination, and measures the measured value and threshold value of the odor sensor 16 in the passenger compartment. Are compared, the operation signal B is output to the fan control unit 25, the damper control unit 26, the door control unit 23, and the window control unit 24.
The damper control unit 26 that has received the operation signal B opens the damper 15, the window control unit 24 opens the window to open the vehicle compartment, and the fan control unit 25 operates the fan 17. Further, the door control unit 23 issues a warning by voice or display so as to open the door to the occupant.
For this reason, dirty air in the passenger compartment can be discharged from the door or window and replaced with clean air outside.

  When the fan 17 attached to the roof 2 of each seat 4 can change the wind direction, the air direction of each fan 17 is adjusted and operated toward the window so that the air in the passenger compartment is released to the outside earlier. May be.

Further, when the measured values of the external odor sensor 19 and the odor sensor 16 are compared with threshold values and it is determined that the interior of the vehicle interior and the exterior of the vehicle are contaminated with air, the operation signal A is sent to the fan control unit 25 and the damper control unit 26. To the door control unit 23 and the window control unit 24.
As in the first embodiment, the door or / and the window are closed, the damper 15 is closed, the vehicle interior is sealed, and air is circulated to purify the air.
In addition, since another structure and an effect are the same as that of 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

It is a figure which shows piping of the air duct of 1st Embodiment of the air conditioning system which is this invention, (A) is piping explanatory drawing of the air duct in the side surface of a motor vehicle, (B) is piping explanatory drawing of the air duct in a floor. is there. FIG. 3 is a layout diagram of a roof air duct, an odor sensor, a suction port, and a fan. (A) is sectional drawing of the air duct of a roof, (B) is sectional drawing of the air duct provided with the damper. It is a block diagram of an air conditioning system. It is a flowchart which shows operation | movement of an air conditioning system, (A) is operation | movement of an air condition detection part, (B) is operation | movement of a fan control part. It is a flowchart which shows operation | movement of an air conditioning system, (A) is operation | movement of a damper control part, (B) is operation | movement of a door control part, (C) is operation | movement of a window control part. It is a flowchart which shows operation | movement when not detecting the air pollution of an air conditioning system. It is explanatory drawing of the modification of 1st Embodiment. It is explanatory drawing of the 2nd modification of 1st Embodiment. It is a block diagram which shows 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Roof 3 Pillar 4 (4A-4D) Seat 5 Door open / close sensor 6 Window open / close sensor 9 Blower 10 Air conditioning system 11 Air duct 12 Suction 13 Air purifying filter 15 Damper 16 (16A-16D) Odor sensor 17 (17A -17D) Fan 18 Interior light 20 Body ECU
21 Air conditioner ECU
22 Air Condition Detection Unit 23 Door Control Unit 24 Window Control Unit 25 Fan Control Unit 26 Damper Control Unit

Claims (5)

An air passage provided with a damper for opening and closing the outside air suction port and extending into the roof;
A vehicle interior air suction port that communicates with the air passage and opens on the indoor side surface of the roof;
A blower opening that communicates with the air passage and blows clean air that has passed through the filter into the vehicle interior;
A fan for blowing clean air into the vehicle compartment from the air outlet;
A contaminated air detection sensor installed in the passenger compartment;
A control means for receiving a detection signal from the contaminated air detection sensor and drivingly controlling the fan and the damper;
The control means closes the damper based on the detection signal from the contaminated air detection sensor, and drives the fan to blow clean air from the air outlet into the vehicle interior. system.   The vehicle air conditioning system according to claim 1, wherein the polluted air detection sensor provided in the vehicle interior includes an odor sensor and / or a smoke sensor. A window and / or door opening / closing sensor, and connecting the opening / closing sensor to the control means;
When the control means receives the contamination detection signal from the contamination air detection sensor and also receives the opening signal from the opening / closing sensor, the control means issues a closing instruction display of the opened window and / or door, and the vehicle interior and the air The air conditioning system for vehicles according to claim 1 or 2 which circulates air between passages. A window and / or door opening / closing sensor and an outside-contaminated air detection sensor for detecting outside air pollution, and connecting these sensors to the control means;
When the control means receives the contamination detection signal from the contaminated air detection sensor, the closing signal from the open / close sensor, and the non-contamination signal from the outside contamination air detection sensor, the control means instructs the opening of the closed window and / or door. The vehicle air-conditioning system according to claim 1 or 2, wherein the vehicle air-conditioning system outputs a display and releases the air in the vehicle compartment to the outside through the opened window and / or door. The suction port and the air blowing port communicating with the air passage are opened on the indoor side surface of the upper roof for each seat, the fan of each air blowing port is attached, and the contaminated air detection sensor is attached to each seat,
The control means drives the fans above the seat other than the fan above the seat where the contaminated air detection sensor from which the pollution detection signal is output is driven, and sucks in the suction port from the seat side that generates the contaminated air. The vehicle air conditioning system according to any one of claims 1 to 4, wherein clean air is blown out from an air blowing port above another seat.

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