JP2022063489A - Vehicular air conditioner - Google Patents

Abstract

To effectively inhibit exhaust gas from being introduced into a vehicle cabin based on external information.SOLUTION: A vehicular air conditioner includes: an outside air introduction port for introducing air outside a vehicle; an inside air introduction port for introducing air inside the vehicle; an inside/outside air switching door device which turns one of the outside air introduction port and the inside air introduction port into an open state and turns the other in a shielded state; and a controller which acquires traffic light state information indicating a state of a traffic light at the vehicle travel direction side to control the inside/outside air switching door device based on the acquired traffic light state information.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle air conditioner.

A technique for preventing the exhaust gas discharged from the preceding vehicle from being introduced into the vehicle interior is known. For example, Patent Document 1 discloses an indoor pollution prevention device for a vehicle that suppresses the introduction of exhaust gas from a preceding vehicle into the interior of the vehicle when the vehicle starts in a congested vehicle. This vehicle interior pollution prevention device detects the driving state of the vehicle and limits the introduction of outside air based on the detected driving state.

Japanese Unexamined Patent Publication No. 8-192616

The technique described in Patent Document 1 determines the limitation of outside air introduction based on the driving state of the vehicle detected inside without acquiring information from the outside.

The present invention has been made in consideration of such circumstances, and provides a vehicle air conditioner capable of effectively suppressing the introduction of exhaust gas into a vehicle interior based on external information. That is one of the purposes.

The vehicle air conditioner according to the present invention has the following configuration.
(1): The vehicle air conditioner according to one aspect of the present invention includes an outside air introduction port for introducing air outside the vehicle, an inside air introduction port for introducing air inside the vehicle, the outside air introduction port, and the above. The inside / outside air switching door device that opens one of the inside air introduction ports and shields the other, and the traffic light status information indicating the status of the traffic light on the traveling direction side of the vehicle are acquired, and the acquired traffic light is obtained. It includes a control device that controls the inside / outside air switching door device based on the state information.

(2): In the embodiment of (1) above, the control device acquires peripheral situation information indicating the peripheral situation of the vehicle, including at least the presence or absence of a peripheral vehicle, and further based on the peripheral situation information, said. It controls the inside / outside air switching door device.

(3): In the embodiment (1) or (2), the control device acquires position information indicating the position of the vehicle, and further controls the inside / outside air switching door device based on the position information. It is a thing.

(4): In any one of the above (1) to (3), the control device acquires vehicle information indicating the state of the vehicle, and further based on the vehicle information, the inside / outside air switching door. It controls the device.

(5): In the aspect of (4) above, the control device indicates that the traffic light state information can proceed, and the position information indicates that the vehicle is in the vicinity of the traffic light, and the periphery thereof. When the situation information indicates the existence of the peripheral vehicle and the vehicle information indicates the start of the vehicle, the inside / outside air switching door is set so that the outside air introduction port is shielded and the inside air introduction port is opened. It controls the device.

(6): In the aspect of the above (2), when the signal state information indicates a stop instruction and the peripheral situation information indicates the presence of the peripheral vehicle, the control device puts the outside air introduction port in a shielded state. At the same time, the inside / outside air switching door device is controlled so as to open the inside air introduction port.

(7): In the aspect of the above (3), when the position information indicates that the vehicle is separated from the traffic light by a predetermined distance, the control device opens the outside air introduction port and opens the outside air introduction port. The inside / outside air switching door device is controlled so as to shield the inside air introduction port.

According to the aspects (1) to (7), it is possible to effectively suppress the introduction of exhaust gas into the interior of the vehicle based on external information.

According to the aspect (5), when the vehicle starts from the standby state in front of the traffic light, it is possible to prevent the exhaust gas of the peripheral vehicle from being introduced into the interior of the vehicle.

According to the aspect (6), it is possible to prevent the exhaust gas of the peripheral vehicle from being introduced into the interior of the vehicle in front of the traffic light where the vehicle tends to stay.

According to the aspect (7), clean air can be taken into the interior of the vehicle by opening the outside air introduction port after the vehicle leaves the traffic light.

It is a block diagram which shows the example of the structure of the vehicle air conditioner 10 and the vehicle 1 equipped with the vehicle air conditioner 10. It is a flowchart which shows an example of the flow of the process performed by the control device 50 which concerns on 1st Embodiment. It is a figure which shows the example of the scene where the air conditioner 10 for a vehicle is used. It is a flowchart which shows an example of the flow of the process performed by the control device 50 which concerns on 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 is a block diagram showing an example of a configuration of a vehicle air conditioner 10 and a vehicle 1 equipped with the vehicle air conditioner 10. The vehicle 1 is provided with a windshield glass 2 and an engine hood 3. The windshield glass 2 is provided in the front part of the front seat of the vehicle 1, and the engine hood 3 covers the upper part of the engine room in the front part of the vehicle 1. The cowl top panel 4 is arranged below the front side of the windshield glass 2, and the dash upper panel 5 is arranged below the cowl top panel 4. An introduction passage 6 is formed between the cowl top panel 4 and the dash upper panel 5. The introduction passage 6 communicates with the outside air introduction port 11 of the vehicle air conditioner 10 via the connection duct 8. The dash upper panel 5 is formed with a through hole 7 facing the introduction passage 6.

Further, the cowl top panel 4 is formed with a communication hole 9 for introducing outside air and discharging water droplets such as rainwater. The air outside the vehicle 1 that has flowed into the introduction passage 6 from the communication hole 9 is introduced into the outside air introduction port 11 through the through hole 7 and the connection duct 8.

The vehicle air conditioner 10 includes an air conditioner unit 17 having an air filter 12, a blower 13, an evaporator 14, a heater core 15, an air mix door 16, and the like. The blower 13, the evaporator 14, and the heater core 15 are arranged in this order in the casing 17a of the air conditioning unit 17 from the upstream side to the downstream side in the air flow direction. At the upstream end of the casing 17a in the air flow direction, an outside air introduction port 11 for introducing the air outside the vehicle 1 and an inside air introduction port 18 for introducing the air inside the vehicle interior are formed. The outside air introduction port 11 and the inside air introduction port 18 are selectively opened or shielded by the inside / outside air switching door 19.

The air filter 12 is arranged between the outside air introduction port 11 and the inside air introduction port 18 and the blower 13. The evaporator 14 cools the introduced air by the heat of vaporization of the refrigerant. The heater core 15 heats the introduced air by the heat of the engine cooling water or the heat generated by the heat pump system. Further, the air mix door 16 can be rotated by an actuator (not shown), and the ratio of air passing through the heater core 15 is adjusted according to the rotation position.

When the outside air introduction port 11 is not shielded by the inside / outside air switching door 19, the outside air is taken into the casing 17a through the introduction passage 6 and the connection duct 8 described above. When the inside air introduction port 18 is not shielded by the inside / outside air switching door 19, the air inside the vehicle interior is taken into the casing 17a through the inside air introduction passage 20. In the case of the present embodiment, the outside air introduction port 11 and the inside air introduction port 18 are arranged adjacent to the upstream end of the casing 17a so that the introduction directions of the introduced air are mutually tolerated.

The inside / outside air switching door 19 has a first position in which the inside air introduction port 18 is fully closed and the outside air introduction port 11 is fully opened, and a second position in which the inside air introduction port 18 is fully opened and the outside air introduction port 11 is fully closed. It can be slid and displaced from the position. In the case of the present embodiment, the inside / outside air switching door 19 is slidably displaced in an arc shape by being driven by a door operation actuator 21 such as a motor. A combination of the inside / outside air switching door 19 and the door operation actuator 21 is an example of the “inside / outside air switching door device”. The inner / outer air switching door 19 has an inner side surface 19a formed of an arcuate curved surface. The curved shape of the inner side surface 19a is formed to be substantially along the arcuate slide trajectory of the inside / outside air switching door 19. Therefore, when one of the outside air introduction port 11 and the inside air introduction port 18 is closed, the inside / outside air switching door 19 causes the air introduced from the other introduction port to flow along the arcuate inner side surface 19a to form an air filter. It is possible to guide in the direction of 12 (blower 13).

The vehicle air conditioner 10 includes a drive control device 40 and a control device 50 in addition to the air conditioner unit 17.

The drive control device 40 controls the drive of the door operation actuator 21. Therefore, the opening / closing operation of the outside air introduction port 11 and the inside air introduction port 18 by the inside / outside air switching door 19 is controlled by the drive control device 40. The drive control device 40 further controls the drive of the drive motor 13a that operates the blower 13. The blower 13 sucks in air from at least one of the outside air introduction port 11 and the inside air introduction port 18 and sends it out to the downstream side (evaporator 14 side).

The control device 50 receives information from each of the camera 60, the vehicle sensor 70, the communication device 80, and the electronic horizon provider 90, which will be described later, and drives the control device 50 to indicate whether or not to drive the door operation actuator 21 based on the received information. The command is transmitted to the drive control device 40.

The camera 60 is, for example, a digital camera using a solid-state image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). The camera 60 is mounted at least in front of the vehicle 1. When photographing the front, the camera 60 is attached to the upper part of the front windshield, the back surface of the rear-view mirror, and the like. For example, the camera 60 periodically and repeatedly images the surroundings including the front of the vehicle 1, and transmits the image information regarding the obtained captured image to the control device 50. The camera 60 may be able to acquire peripheral situation information indicating the peripheral situation of the vehicle 1, including at least the presence or absence of a peripheral vehicle, and may use, for example, a radar or lidar instead of the camera 60. The image information is an example of "peripheral situation information".

The vehicle sensor 70 includes a part or all of a vehicle speed sensor that detects the speed of the vehicle 1, an acceleration sensor that detects the acceleration, a yaw rate sensor that detects the angular velocity around the vertical axis, an orientation sensor that detects the direction of the vehicle 1, and the like. include. The vehicle sensor 70 transmits a detected value or a processed value of the detected value (hereinafter referred to as vehicle information) to the control device 50.

The communication device 80 can communicate with an external device via various wireless communication network systems, and transmits / receives various signals. The communication device 80 receives satellite radio waves in a GNSS (Global Navigation Satellite System) such as a positioning system (for example, GPS (Global Positioning System)) for measuring the position of the vehicle 1 using an artificial satellite, and receives the satellite radio waves of the vehicle. Positioning is performed. The communication device 80 further communicates with the signal device 100 on the traveling direction side of the vehicle 1 using, for example, a C2X or V2X-related protocol, and the signal device 100 gives an instruction to proceed, pay attention, or stop. The state information shown may be acquired by analyzing the image information from the camera 60 as shown by the dotted line in FIG. 1. In this case, the signal 100 is acquired in Japan. The display of blue indicates progress, the display of yellow indicates caution, and the display of red indicates stop. However, since the display mode of the signal 100 is not limited to this, it depends on the display mode of the signal in the area where the vehicle 1 is used. Image processing may be prepared. The state information of the signal 100 is an example of "signal state information".

The electronic horizon provider (map matching device) 90 combines the positioning signal obtained by the communication device 80 with the map data stored in a storage device (not shown), and the vehicle 1 travels now or in the near future. Acquires electronic horizon information including at least the attributes of the road to be used. The attributes of roads are, for example, public roads (national roads, prefectural roads, municipal roads), private roads, intersections, railroad crossings, confluences, expressways, and the like. Further, the map data does not have to be stored in the storage device by the electronic horizon provider 90, and a map centered on the position of the vehicle 1 may be acquired from the map distribution server using the communication device 80. Electronic horizon information is an example of "location information".

Next, with reference to FIG. 2, the processing of the control device 50 of the vehicle air conditioner 10 according to the present embodiment will be described. FIG. 2 is a flowchart showing an example of the flow of processing performed by the control device 50 according to the embodiment. The processing of this flowchart is started at a desired timing such as the timing when the power of the vehicle 1 is turned on.

First, the control device 50 sets the flag HasStopped, which indicates whether or not the vehicle 1 has stopped, to false, which indicates that the vehicle 1 is negative (step S1). Next, the control device 50 determines whether or not the vehicle 1 is moving based on the detection value of the vehicle sensor 70, and if not, returns the process to step S1. The control device 50 determines that the vehicle 1 is not moving when the detection value of the vehicle speed sensor included in the vehicle sensor 70 is less than a predetermined value near zero, and the vehicle 1 is moving when the value is equal to or more than the predetermined value. Is determined to be. That is, for example, the vehicle 1 stopped immediately after the power is turned on loops between step S1 and step S2 after the start of processing.

When it is determined in step S2 that the vehicle 1 is moving, the control device 50 again determines whether or not the vehicle 1 is moving by using the vehicle sensor 70 (step S3). If it is determined that the vehicle 1 is not moving, the control device 50 sets the flag HasStopped to a true indicating that it is positive (step S4). By the processing of steps S1 to S4, it can be specified that the vehicle 1 has moved at least once and then stopped.

When it is determined in step S3 that the vehicle 1 is moving, the control device 50 determines whether or not the flag HasStopped is true and the vehicle 1 has started (step S5). Whether or not the vehicle 1 has started is determined by using the vehicle sensor 70, for example, "whether the accelerator pedal is depressed while the gears are engaged" or "the speed of the vehicle 1 is in a low speed state (for example, described above). As described above, when the detected value of the vehicle speed sensor included in the vehicle sensor 70 is less than a predetermined value near zero), the determination is made based on whether the vehicle has increased by a predetermined acceleration or more.

If it is determined in step S5 that the flag HasStopped is true and the vehicle 1 has not started, the control device 50 returns the process to step S3. On the other hand, when the flag HasStopped is true and it is determined that the vehicle 1 has started, the control device 50 sets the flag HasStopped to false (step S6).

Next, the control device 50 uses the camera 60 to determine whether or not a peripheral vehicle exists (step S7). In the present embodiment, the peripheral vehicle is a preceding vehicle existing within a predetermined distance (for example, 5 m), but is not limited to the preceding vehicle, and may be a side vehicle or a following vehicle. The preceding vehicle means a vehicle that exists immediately before the vehicle 1 on the same lane as the vehicle 1. Further, the side vehicle means a vehicle existing within a predetermined distance (for example, 5 m) of the vehicle 1 on a lane adjacent to the traveling lane of the vehicle 1. Further, the following vehicle means a vehicle that exists immediately after the vehicle 1 on the same lane as the vehicle 1. If it is determined in step S7 that there are no peripheral vehicles, the control device 50 returns the process to step S3. On the other hand, when it is determined that a peripheral vehicle exists, the control device 50 determines whether or not the vehicle 1 is at an intersection (step S8).

Whether or not the vehicle 1 is at an intersection can be determined by using the electronic horizon information provided by the electronic horizon provider 90. Further, when the intersection has a traffic light, it can be determined by communication with the traffic light 100 by the communication device 80. Alternatively, it is possible to determine whether or not the vehicle 1 is at an intersection based on the result of analyzing the image information obtained by the camera 60.

When it is determined in step S8 that the vehicle 1 is at an intersection, the control device 50 uses the communication device 80 to acquire the state information of the traffic light 100 on the traveling direction side of the vehicle 1, and the state information is the vehicle. It is determined whether or not the progress of 1 is possible (step S9). If it is not determined that the state information of the traffic light 100 indicates the progress of the vehicle 1, the control device 50 returns the process to step S3. On the other hand, when it is determined that the state information of the traffic light 100 indicates the progress of the vehicle 1, the control device 50 shields the outside air introduction port 11 and sets the door operation actuator 21 so as to open the inside air introduction port 18. The drive command to be driven is transmitted to the drive control device 40. Upon receiving the drive command, the drive control device 40 drives the door operation actuator 21 to shield the outside air introduction port 11 and open the inside air introduction port 18 (step S11). If it is determined in step S8 that the vehicle 1 is at an intersection, the control device 50 may proceed to step S11 as it is, regardless of the state of the traffic light 100. Further, the process of step S9 may be executed when the presence of the traffic light 100 is detected in front of the vehicle 1 by using the communication device 80 or the camera 60, and may be omitted if not. .. Further, in the process of step S9, it is determined whether or not the state information of the traffic light 100 indicates the progress of the vehicle 1, but instead, it may be determined whether or not the progress of the vehicle 1 indicates the progress. good.

On the other hand, if it is not determined in step S8 that the vehicle 1 is at the intersection, the control device 50 determines whether or not the vehicle 1 is on a public road by using the electronic horizon provider 90 (step S10). If it is determined that the vehicle 1 is on a public road, the control device 50 advances the process to step S11, while if the vehicle 1 is not determined to be on a public road, the control device 50 returns the process to step S3. In step S10, it is determined whether or not the vehicle 1 is on a public road. Alternatively, the control device 50 determines whether or not the vehicle 1 is on a road of another attribute that is expected to be congested, such as a highway. You may judge.

Next, the control device 50 monitors the speed of the vehicle 1 using the vehicle sensor 70, and waits until the speed of the vehicle 1 reaches a threshold value (for example, 20 km / h) or more (step S12). When the speed of the vehicle 1 exceeds the threshold value, the control device 50 opens the outside air introduction port 11 and transmits a drive command for driving the door operation actuator 21 so as to shield the inside air introduction port 18 to the drive control device 40. .. Upon receiving the drive command, the drive control device 40 drives the door operation actuator 21 to open the outside air introduction port 11 and shield the inside air introduction port 18 (step S13). After that, the control device 50 returns the process to step S3.

In step S12, the control device 50 waits until the speed of the vehicle 1 becomes equal to or higher than the threshold value. Alternatively, the control device 50 may shield the outside air introduction port 11 and wait for a predetermined time (for example, 10 seconds) after opening the inside air introduction port 18, and then proceed to the process in step S13. The predetermined time may be any time as long as it is assumed that the distance from the preceding vehicle is sufficiently widened after the vehicle 1 starts. Further, as an alternative, the control device 50 calculates the mileage of the vehicle 1 using the vehicle sensor 70, shields the outside air introduction port 11, and opens the inside air introduction port 18 for a predetermined distance. When traveling, the process may proceed to step S13.

FIG. 3 is a diagram showing an example of a scene in which the vehicle air conditioner 10 is used. As shown in FIG. 3, the vehicle 1 stopped in front of the traffic light 100 receives a large amount of exhaust gas from the preceding vehicle when starting. However, according to the present embodiment, the control device 50 detects the start of the vehicle based on the speed information obtained from the vehicle sensor 70, and detects the existence of the preceding vehicle based on the image information obtained from the camera 60. Then, it is detected that the vehicle 1 is at the intersection based on the communication information obtained from the traffic light 100 or the image information obtained from the camera 60. Based on these detections, the control device 50 shields the outside air introduction port 11 and transmits a drive command for driving the door operation actuator 21 so as to open the inside air introduction port 18 to the drive control device 40. That is, it is possible to effectively suppress the introduction of the exhaust gas discharged from the preceding vehicle into the interior of the vehicle based on the external information.

According to the first embodiment described as described above, due to the processing of the control device 50, when the vehicle 1 stops once after starting and then starts again, a peripheral vehicle exists and the vehicle 1 is at an intersection or a public road. If so, the outside air introduction port 11 is shielded and the inside air introduction port 18 is opened. As a result, it is possible to effectively prevent the exhaust gas discharged from the peripheral vehicle from being introduced into the interior of the vehicle based on the external information.

<Second Embodiment>
Next, the vehicle air conditioner 10 according to the second embodiment of the present invention will be described. The vehicle air conditioner 10 according to the present embodiment has the same hardware configuration as the vehicle air conditioner 10 according to the first embodiment. On the other hand, unlike the vehicle air conditioner 10 according to the first embodiment, the vehicle air conditioner 10 according to the present embodiment does not execute a process for detecting the start of the vehicle, and at an intersection where the vehicle tends to stay. , Suppresses the introduction of exhaust gas discharged from surrounding vehicles into the vehicle interior more quickly.

FIG. 4 is a flowchart showing an example of the flow of processing performed by the control device 50 according to the second embodiment. The processing of this flowchart is started at a desired timing such as the timing when the power of the vehicle 1 is turned on.

First, the control device 50 acquires the state information of the traffic light 100 on the traveling direction side of the vehicle 1 based on the communication with the traffic light 100 using the communication device 80 or the image information obtained from the camera 60 (step S21). ). Next, the control device 50 determines whether or not the acquired state information of the traffic light 100 indicates a stop instruction (step S22). Alternatively, the control device 50 may determine whether the state information of the traffic light 100 indicates caution or stop instruction.

If the state information of the traffic light 100 does not indicate a stop instruction, the control device 50 returns the process to step S21, while if the state information of the traffic light 100 indicates a stop instruction, the control device 50 uses the camera 60 to image the surroundings of the vehicle. Acquire information (step S23).

Next, the control device 50 determines whether or not there is a peripheral vehicle based on the acquired image information (step S24). When it is determined that the peripheral vehicle does not exist, the control device 50 returns the process to step S21, while when it is determined that the peripheral vehicle exists, the control device 50 shields the outside air introduction port 11 and introduces the inside air. A drive command for driving the door operation actuator 21 so as to open the mouth 18 is transmitted to the drive control device 40. Upon receiving the drive command, the drive control device 40 drives the door operation actuator 21 to shield the outside air introduction port 11 and open the inside air introduction port 18 (step S25).

Next, the control device 50 monitors the speed of the vehicle 1 using the vehicle sensor 70, and waits until the speed of the vehicle 1 reaches a threshold value (for example, 20 km / h) or more (step S26). When the speed of the vehicle 1 exceeds the threshold value, the control device 50 opens the outside air introduction port 11 and transmits a drive command for driving the door operation actuator 21 so as to shield the inside air introduction port 18 to the drive control device 40. .. Upon receiving the drive command, the drive control device 40 drives the door operation actuator 21 to open the outside air introduction port 11 and shield the inside air introduction port 18 (step S27). This ends the process.

When the traffic light 100 indicates a stop instruction and there is a peripheral vehicle by the process of the control device 50 according to the second embodiment described as described above, the outside air introduction port 11 is shielded and the inside air introduction port 18 is opened. Thereby, it is possible to effectively suppress the exhaust gas discharged from the peripheral vehicle from being introduced into the interior of the vehicle based on the external information. Further, the processing load of the control device 50 can be reduced by shielding the outside air introduction port 11 not only when the vehicle 1 starts, but by executing the shielding at the stage when the presence of a peripheral vehicle is detected at an intersection where the vehicle tends to stay. can.

In the second embodiment, the control device 50 executes the drive control of the door operation actuator 21 based on the state information of the traffic light 100 and the image information from the camera 60. However, as an alternative, the control device 50 may execute the drive control of the door operation actuator 21 based only on the state information of the traffic light 100. Also in this case, it is possible to effectively suppress the introduction of the exhaust gas discharged from the peripheral vehicle into the interior of the vehicle based on the external information. Further, the processing load of the control device 50 can be further reduced as compared with the first embodiment and the second embodiment.

Further, in the first embodiment and the second embodiment, the drive control of the door operation actuator 21 is executed when the vehicle travels at an intersection or a public road. However, the present invention is not limited to this configuration, and can be similarly applied to situations where a vehicle is expected to stay, such as at a railroad crossing, a confluence, or near the entrance of a building or a parking lot.

Although the embodiments for carrying out the present invention have been described above using the embodiments, the present invention is not limited to these embodiments, and various modifications and substitutions are made without departing from the gist of the present invention. Can be added.

1 Vehicle 10 Vehicle air conditioner 11 Outside air introduction port 18 Inside air introduction port 19 Inside / outside air switching door 40 Drive control device 50 Control device 60 Camera 70 Vehicle sensor 80 Communication device 90 Electronic horizon provider 100 Signal

Claims (7)

The outside air inlet that introduces the air outside the vehicle,
The inside air introduction port that introduces the air inside the vehicle and
An inside / outside air switching door device that opens one of the outside air introduction port and the inside air introduction port and keeps the other in a shielded state.
A control device that acquires traffic light status information indicating the status of the traffic light on the traveling direction side of the vehicle and controls the inside / outside air switching door device based on the acquired traffic light status information.
A vehicle air conditioner equipped with. The control device acquires peripheral situation information indicating the peripheral situation of the vehicle, including at least the presence or absence of a peripheral vehicle, and controls the inside / outside air switching door device based on the peripheral situation information.
The vehicle air conditioner according to claim 1. The control device acquires position information indicating the position of the vehicle, and further controls the inside / outside air switching door device based on the position information.
The vehicle air conditioner according to claim 1 or 2. The control device acquires vehicle information indicating the state of the vehicle, and further controls the inside / outside air switching door device based on the vehicle information.
The vehicle air conditioner according to any one of claims 1 to 3. The control device indicates that the traffic light status information can be advanced, the position information indicates that the vehicle is in the vicinity of the traffic light, the peripheral situation information indicates the presence of the peripheral vehicle, and the peripheral vehicle is present. When the vehicle information indicates the start of the vehicle, the inside / outside air switching door device is controlled so that the outside air introduction port is shielded and the inside air introduction port is opened.
The vehicle air conditioner according to claim 4. When the traffic light state information indicates a stop instruction and the peripheral situation information indicates the presence of the peripheral vehicle, the control device closes the outside air introduction port and opens the inside air introduction port. Controlling the inside / outside air switching door device,
The vehicle air conditioner according to claim 2. When the position information indicates that the vehicle is separated from the traffic light by a predetermined distance, the control device opens the outside air introduction port and shields the inside / outside air introduction port. Control the air switching door device,
The vehicle air conditioner according to claim 3.

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