JP2021066242A - Vehicular air-conditioning system - Google Patents

Abstract

To provide a vehicular air-conditioning system which has a simpler configuration and is capable of providing occupants with more sufficient comfort.SOLUTION: The vehicular air-conditioning system comprises: an air-conditioning device 10 for blowing air-conditioned air of which temperature is adjusted from blowout ports 100, 120; and a ceiling blowing device 20 which is disposed on the ceiling of a vehicle. It also comprises: state collection parts (S102, S110, S202, S210) for collecting a temperature state of a rear seat space of the vehicle or a seat state of the vehicle; and an air conditioning control parts (S106, S114, S206, S214) which adjust at least one of the temperature or the air volume of the air-conditioned air that is blown from the blowout ports 100, 120 and reaches a suction port 200 of the ceiling blowing device 20 by controlling the air-conditioning device 10 according to the collected state.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle air conditioning system.

Conventionally, there is a ceiling circulator installed on the ceiling of a vehicle to blow air into the vehicle interior. This device is capable of adjusting the air volume and direction of the blown air. However, this device may not be able to provide sufficient comfort to the occupants because it cannot regulate the temperature of the air that blows into the passenger compartment.

Therefore, there is an apparatus described in Patent Document 1. This device includes a first air conditioner arranged in front of the vehicle and a second air conditioner arranged in the rear of the vehicle. Then, the conditioned air whose temperature is adjusted by the first air conditioner is blown from the air outlet arranged in front of the vehicle, and the conditioned air whose temperature is adjusted by the second air conditioner is blown from the air outlet arranged on the ceiling of the vehicle. It is configured to blow air.

Japanese Unexamined Patent Publication No. 2019-98770

However, since the device described in Patent Document 1 has a configuration including two air conditioners, a first air conditioner and a second air conditioner, there is a problem that the configuration is complicated and the cost is high.

The present invention has been made in view of the above points, and an object of the present invention is to provide a occupant with sufficient comfort with a simpler configuration.

In order to achieve the above object, the invention according to claim 1 is a vehicle air-conditioning system for air-conditioning a vehicle, from the air outlets (100, 120) arranged on the instrument panel (55) of the vehicle. An air conditioner (10) that blows temperature-controlled air-conditioning air into the passenger compartment having a front seat space (FS) and a rear seat space (RS), and a suction port arranged on the ceiling of the vehicle and arranged on the ceiling. A state collector that collects at least one of the temperature state of the rear seat space of the vehicle and the seat state of the vehicle, and the ceiling blower (20) that blows the air conditioning air sucked from (200) to at least the rear seat space in the vehicle interior. The temperature and volume of the air conditioner that is blown from the air outlet and reaches the suction port of the ceiling blower by controlling the air conditioner according to the units (S102, S110, S202, S210) and the state collected by the state collecting unit. It is provided with an air conditioner control unit (S106, S114, S206, S214) that adjusts at least one of the above.

According to such a configuration, the state collecting unit collects at least one state of the temperature state of the rear seat space of the vehicle and the seat state of the vehicle. Then, the air-conditioning control unit adjusts at least one of the temperature and the air volume of the air-conditioning air that is blown from the air outlet and reaches the suction port of the ceiling air-conditioning device by controlling the air-conditioning device according to the state collected by the state collecting unit. To do. Therefore, it is possible to provide the occupant with sufficient comfort with a simpler configuration without providing a plurality of air conditioners.

The reference reference numerals in parentheses attached to each component or the like indicate an example of the correspondence between the component or the like and the specific component or the like described in the embodiment described later.

It is a figure which showed the schematic cross section of the vehicle which mounted the vehicle air-conditioning system which concerns on 1st Embodiment. It is a front view of the instrument panel of the vehicle which mounts the air-conditioning system of 1st Embodiment. It is a figure which showed the structure of the ceiling blower when the vehicle which mounted the vehicle air-conditioning system of 1st Embodiment looked down from the upper side in the vertical direction. It is a figure which showed the flow of the air-conditioning wind of the air-conditioning system for a vehicle of 1st Embodiment. It is the schematic sectional drawing of the air conditioner of the vehicle air-conditioning system of 1st Embodiment. It is a block diagram of the vehicle air-conditioning system of 1st Embodiment. It is a flowchart of the control device of the vehicle air-conditioning system of 1st Embodiment. It is a figure which showed the flow of the air-conditioning wind at the time of heating of the vehicle air-conditioning system which concerns on 1st Embodiment. It is a flowchart of the control device of the vehicle air-conditioning system of 2nd Embodiment. It is a figure which showed the flow of the air-conditioning wind at the time of cooling of the air-conditioning system for a vehicle which concerns on 2nd Embodiment. It is a figure which showed the flow of the air-conditioning wind at the time of cooling of the air-conditioning system for a vehicle which concerns on 2nd Embodiment. It is a figure which showed the flow of the air-conditioning wind at the time of heating of the vehicle air-conditioning system which concerns on 2nd Embodiment. It is a figure which showed the flow of the air-conditioning wind at the time of heating of the vehicle air-conditioning system which concerns on 2nd Embodiment. It is a figure which showed the flow of the conditioned wind of the conditioned air system for a vehicle which concerns on 3rd Embodiment. It is a figure for demonstrating the wind direction adjustment plate provided in the air outlet. It is a figure which showed the flow of the conditioned wind of the conditioned air system for a vehicle which concerns on 3rd Embodiment. It is a figure which showed the flow of the air-conditioning system for a vehicle which concerns on 3rd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each of the following embodiments, the same or equal parts are designated by the same reference numerals, and the description thereof will be omitted.

(First Embodiment)
The vehicle air conditioning system according to the first embodiment will be described with reference to FIGS. 1 to 8. The vehicle air-conditioning system 1 of the present embodiment is mounted on a vehicle 5 capable of switching between an automatic driving mode in which the vehicle automatically travels and a manual driving mode in which the vehicle travels by the driving operation of the occupant 6.

As shown in FIG. 1, the vehicle 5 is provided with a front seat 51 and a rear seat 52. The front seats 51 are provided on the driver's seat side arranged on the right side and the passenger seat side arranged on the left side of the vehicle 5 in the vehicle width direction. Each of the front seats 51 can be in a reclining state. The front seats 51 are configured so that the direction in which the occupant 6 is seated can be changed to the front direction of the vehicle and the rear direction of the vehicle. The front seat 51 can be rotated so as to face the rear of the vehicle when the vehicle 5 is executing the automatic driving mode or when the vehicle is stopped.

The vehicle air-conditioning system 1 mounted on the vehicle 5 described above includes an air-conditioning device 10, a ceiling blower 20, a control device 30, and the like.

The air conditioner 10 is provided inside the instrument panel 55. The air-conditioning device 10 generates air-conditioned air whose temperature and humidity are adjusted according to a predetermined air-conditioning mode, and blows the air-conditioned air into the vehicle interior having the front seat space FS and the rear seat space RS of the vehicle 5. Perform indoor air conditioning.

As shown in FIG. 2, the instrument panel 55 is provided with an outlet 100 and an outlet 120. As shown by the arrow AF1 in FIG. 1, the air outlet 100 is a face air outlet that blows air-conditioning air toward the front surface of the backrest of the front seat 51 on the vehicle front side.

As shown by the arrow AF2 in FIG. 1, the air outlet 120 is an upper air outlet that blows air conditioning air toward the suction port 200 of the ceiling blower 20. The air outlet 120 is provided at the center of the vehicle 5 in the vehicle width direction. The air outlet 120 is arranged in front of the vehicle from the air outlet 100.

The air-conditioning air blown from the air outlet 120 faces upward in the vertical direction with respect to the air-conditioning air blown from the air outlet 100. The air outlet 120 is provided exclusively for guiding the air conditioning air to the suction port 200 of the ceiling blower 20. As the ceiling blower 20 operates, the air conditioning air blown out from the outlet 120 is mainly sucked into the suction port 200 of the ceiling blower 20.

The air outlet 100 is connected to the air conditioner 10 via a duct 114a. The air outlet 120 is connected to the air conditioner 10 via a duct 117a. The outlet 100 is provided with a louver (not shown) for adjusting the air volume of the air-conditioning air to be blown out. This louver can be controlled by the control device 30.

The conditioned air from the air conditioner 10 is blown out from the outlet 100 into the vehicle interior of the vehicle 5 through the duct 114a, and is blown out from the outlet 120 into the vehicle interior of the vehicle 5 through the duct 117a.

The ceiling blower 20 is provided on the ceiling of the vehicle 5. As shown in FIG. 3, the ceiling blower 20 is provided at the center of the rear seat space RS in the vehicle 5 in the vehicle width direction. The ceiling blower 20 has a centrifugal blower 200a, a suction port 200, an outlet 210, and an outlet 220. The ceiling blower 20 does not have a cooling function and a heating function.

The suction port 200 is provided on the ceiling of the vehicle 5. More specifically, the suction port 200 is provided on the front side of the vehicle in the ceiling blower 20. The suction port 200 is provided at the center of the vehicle 5 in the vehicle width direction.

A part of the air-conditioning air blown from the air outlet 120 provided at the center in the vehicle width direction of the vehicle 5 is sucked into the ceiling blower 20 from the suction port 200. Therefore, the air-conditioning air flows from the air outlet 120 to the suction port 200 of the ceiling blower 20 regardless of the postures of the occupants 6 of the front seat 51 and the rear seat 52.

The air outlet 210 and the air outlet 220 are provided at positions where air conditioning air can be blown into the front seat space FS and the rear seat space RS. The front seat space FS refers to the space around the front seat and the space around the occupant seated in the front seat. The rear seat space RS refers to the space around the rear seat 52 and the space around the occupant seated in the rear seat 52. The front seat space FS and the rear seat space RS are continuous spaces.

The air outlet 210 mainly blows air conditioning air into the front seat space FS of the vehicle 5, and the air outlet 220 mainly blows air conditioning air into the rear seat space RS of the vehicle 5. The outlet 210 is arranged in front of the vehicle with respect to the outlet 220.

The outlet 210 has an outlet 210a and an outlet 210b. The air outlet 210a is arranged at a portion on the right side of the vehicle 5 in the vehicle width direction, and the air outlet 210b is arranged at a portion on the left side of the vehicle 5 in the vehicle width direction.

The air-conditioning outlet 210a mainly blows air-conditioned air toward the front side of the vehicle on the driver's seat side of the rear seat space RS, and the air-conditioning outlet 210b mainly faces the front side of the vehicle on the passenger seat side of the rear seat space RS. And blow out the air conditioning wind.

The outlet 220 has an outlet 220a and an outlet 220b. The air outlet 220a mainly blows air-conditioned air toward the rear side of the vehicle on the driver's seat side of the rear seat space RS, and the air outlet 220b mainly blows air-conditioned air toward the rear side of the vehicle on the driver's seat side of the rear seat space RS. It blows air conditioning air toward the side.

The air outlet 210a and the air outlet 210b are provided with louvers (not shown) for adjusting the direction and air volume of the air-conditioning air blown toward the rear seat space RS. This louver is controlled by the control device 30.

Each of the centrifugal blowers 200a has a centrifugal fan and a motor (not shown). This motor rotates and drives the centrifugal fan according to the instruction from the control device 30.

FIG. 4 shows a state in which the front seat 51 on the passenger seat side faces the front of the vehicle and the front seat 51 on the driver's seat side faces the rear of the vehicle. In FIG. 4, the arrow AF1 from the outlet 100 is omitted.

As shown by the arrow AF2 in FIG. 4, the air conditioner air is blown into the vehicle interior from the air outlet 120 of the instrument panel 55, and a part of the air conditioner air is sucked into the ceiling air blower 20 from the suction port 200. Then, the air-conditioning air sucked into the ceiling blower 20 is blown into the vehicle interior of the vehicle 5 as shown by arrows AF4 and AF5 in FIG.

Next, the configuration of the air conditioner 10 will be described with reference to FIG. The air conditioner 10 has an inside / outside air switching door 12, a blower 13, an evaporator 14 as a cooling device, a heater core 15 as a heating device, an air mix door 16, and a mode switching door 171, 172, 173, 174 inside the air conditioning case 11. And so on.

A ventilation passage 111 through which air flows is formed inside the air conditioning case 11. Further, the air conditioning case 11 introduces the inside air introduction port 112 for introducing the inside air into the ventilation passage 111 from a predetermined position in the vehicle interior and the outside air from the outside of the vehicle into the ventilation passage 111 on the upstream side in the air flow direction of the ventilation passage 111. It has an outside air introduction port 113 for the purpose.

The inside / outside air switching door 12 continuously adjusts the opening area of the inside air introduction port 112 and the opening area of the outside air introduction port 113. The inside / outside air switching door 12 rotates so as to close the other opening of the inside air introduction port 112 and the outside air introduction port 113 so that one opening is opened. Thereby, the inside / outside air switching door 12 can adjust the ratio of the air volume of the inside air introduced into the ventilation passage 111 to the air volume of the outside air.

The blower 13 includes a centrifugal fan 131, a motor 132 that rotationally drives the centrifugal fan 131, and the like. When the centrifugal fan 131 rotates with the drive of the motor 132, the inside air or the outside air is introduced into the ventilation passage 111 from the inside air introduction port 112 or the outside air introduction port 113, and the air is blown to the ventilation passage 111. The temperature and humidity of the air blown by the blower 13 and flowing through the ventilation passage 111 are adjusted by the evaporator 14 and the heater core 15, and the air is communicated with the ventilation passage 111 via any of a plurality of outlet openings 114, 115, 116. It is blown into the passenger compartment.

The evaporator 14 as a cooling device is a heat exchanger for cooling the air flowing through the ventilation passage 111. The evaporator 14 constitutes a well-known refrigeration cycle together with a compressor, a condenser, an expansion valve and the like (not shown).

A refrigerant in a gas-liquid two-layer state flows through a tube (not shown) included in the evaporator 14. The evaporator 14 cools the air flowing through the ventilation passage 111 by the latent heat of vaporization of the refrigerant flowing inside the tube.

The heater core 15 as a heating device is a heat exchanger for heating the air flowing through the ventilation passage 111. Hot water or the like flows inside a tube of the heater core 15 (not shown). The heater core 15 heats the air flowing through the ventilation passage 111 by exchanging heat between the hot water or the like flowing inside the tube and the air flowing through the ventilation passage 111.

An air mix door 16 is provided between the evaporator 14 and the heater core 15. The air mix door 16 adjusts the ratio of the air volume that flows around the heater core 15 after passing through the evaporator 14 to the air volume that passes through the heater core 15 after passing through the evaporator 14.

The air conditioning case 11 has a plurality of outlet openings 114, 115, 116, 117 for blowing air from the ventilation passage 111 into the vehicle interior on the downstream side in the air flow direction of the ventilation passage 111. The plurality of outlet openings 114, 115, 116, 117 are composed of, for example, a face outlet opening 114, a foot outlet opening 115, a defroster outlet opening 116, an upper outlet opening 117, and the like.

The face blowing opening 114 blows air-conditioning air toward or around the upper body of the occupant 6 seated in the front seat 51. The foot blowing opening 115 blows air-conditioning air toward the feet of the occupant 6. The defroster blowout opening 116 blows air-conditioning air toward the windshield of the vehicle 5. The upper blowout opening 117 blows air-conditioning air toward the space above the vehicle.

The face outlet 114, the foot outlet 115, the defroster outlet 116, and the upper outlet 117 are provided with mode switching doors 171, 172, 173, and 174 for opening and closing the respective openings. ..

The mode switching doors 171, 172, 173, and 174 are composed of a face door 171, a foot door 172, a defroster door 173, and an upper blowout door 174. The face door 171 opens and closes the face outlet opening 114. The foot door 172 opens and closes the foot outlet opening 115. The defroster door 173 opens and closes the defroster outlet opening 116. The upper outlet door 174 opens and closes the upper outlet opening 117.

The inside / outside air switching door 12, the air mix door 16, the face door 171, the foot door 172, the defroster door 173, and the upper blowout door 174 are each driven by an actuator such as a servomotor (not shown).

A plurality of ducts 114a, 115a, 116a, 117a configured as separate members from the air conditioning case 11 are connected to the plurality of outlet openings 114, 115, 116, 117 of the air conditioning case 11, respectively.

The plurality of ducts 114a, 115a, 116a, 117a are composed of, for example, a face duct 114a, a foot duct 115a, a defroster duct 116a, an upper outlet duct 117a, and the like. The face duct 114a is connected to the face outlet opening 114. The foot duct 115a is connected to the foot outlet opening 115. The defroster duct 116a is connected to the defroster outlet opening 116. The upper outlet duct 117a is connected to the upper outlet opening 117. The air conditioning case 11 and the plurality of ducts 114a, 115a, 116a, 117a may be integrally configured.

FIG. 6 is a block diagram of the vehicle air conditioning system 1 of the present embodiment. As shown in this figure, the vehicle air conditioner system 1 includes an air conditioner 10, a ceiling blower 20, a control device 30, a front temperature sensor 31, a rear temperature sensor 32, a front seat detection unit 33, an occupant detection unit 34, and a control device. The front temperature sensor 31 including 30 is for determining the heat load of the front seat space FS of the vehicle 5. The front temperature sensor 31 is mounted inside the instrument panel 55. The front temperature sensor 31 detects the temperature of the air in the front seat space FS of the vehicle 5 and outputs a signal indicating the detected temperature to the control device 30.

The rear temperature sensor 32 is for determining the heat load of the rear seat space RS of the vehicle 5. The rear temperature sensor 32 is attached to the ceiling of the vehicle 5 near the ceiling blower 20. The rear temperature sensor 32 of the present embodiment detects the temperature of the air in the rear seat space RS of the vehicle 5 and outputs a signal indicating the detected temperature to the control device 30.

The front seat detection unit 33 has a front seat detection unit 33 that outputs signals indicating the position of the front seat 51 of the vehicle 5 in the front-rear direction, the angle of the backrest of the seat 51, and the orientation of the seat 51. The orientation of the front seat 51 is detected. The front seat detection unit 33 can employ a sensor that mechanically detects the rotation of the front seat 51 with or without contact. Information indicating the orientation of the front seat 51 detected by the front seat detection unit 33 is transmitted to the control device 30.

The occupant detection unit 34 detects the presence or absence of occupants in the front seats 51 and the rear seats 52, that is, whether or not the occupants are seated in the front seats 51 and the rear seats 52. The occupant detection unit 34 can employ a seating sensor or an infrared sensor provided on the seats of the front seat 51 and the rear seat 52. Information regarding the presence or absence of occupants in the front seats 51 and the rear seats 52 detected by the occupant detection unit 34 is transmitted to the control device 30.

The control device 30 is configured as a computer equipped with a CPU, ROM, RAM, I / O, etc., and performs various processes according to a program stored in the ROM. The control device 30 collects various information from various sensors 31 to 34 and executes a process of controlling the air conditioner 10 and the ceiling blower 20.

Next, the control process of the control device 30 of the vehicle air conditioner of the present embodiment will be described with reference to FIG. 7. FIG. 7 is a flowchart of the control process executed by the control device 30, which is executed as a subroutine of a main routine (not shown). This control process is repeatedly executed after the ignition switch of the vehicle 5 is turned on. Here, as shown in FIG. 1, it is assumed that the backrests of the front seats 51 and the rear seats 52 are raised, and the front seats 51 and the rear seats 52 are facing the front of the vehicle. To do.

First, the control device 30 determines in S100 whether or not the air conditioner 10 is cooling. Specifically, it is determined whether or not the air conditioner 10 is cooling based on whether or not the air conditioner switch is set to the ON state by the operation of the occupant on the operation panel provided on the vehicle.

Here, when the air conditioner switch is set to the ON state, the control device 30 collects the temperature state of the rear seat space RS of the vehicle 5 in S102. Specifically, the temperature of the air in the rear seat space RS of the vehicle 5 is collected from the rear temperature sensor 32.

Next, the control device 30 determines in S104 whether or not it is necessary to strengthen the cooling. Specifically, it is determined whether or not it is necessary to strengthen the cooling based on whether or not the temperature of the rear seat space RS of the vehicle 5 is equal to or higher than the first threshold value.

Here, when the temperature of the rear seat space RS of the vehicle 5 collected in S102 is equal to or higher than the first threshold value, the control device 30 determines that it is necessary to strengthen the cooling. Then, in S106, the control device 30 controls the air conditioner 10 so that the temperature of the air conditioning air reaching the suction port 200 of the ceiling blower 20 is lowered to a predetermined temperature lower than a predetermined temperature. Specifically, the air conditioner 10 is controlled so that the temperature of the air conditioning air blown from the air outlet 120 of the instrument panel 55 is lowered below a predetermined temperature.

As a result, the cooling capacity of the air conditioner 10 is increased, and the temperature of the air conditioning air blown from the air outlet 120 of the instrument panel 55 is further lowered. This air-conditioning air is blown from the air outlet 100 toward the upper body of the occupant of the front seat 51 as shown by the arrow AF1 in FIG. 1, and is blown from the air outlet 120 from the air outlet 120 as shown by the arrow AF2 in FIG. The air is blown toward the suction port 200 of 20.

A part of the air-conditioning air blown from the air outlet 120 toward the suction port 200 of the ceiling blower 20 is sucked into the ceiling blower 20 as shown by the arrow AF3 in FIG. Then, cold air-conditioned air is blown from the air outlet 210 and the air outlet 220 into the rear seat space RS. Specifically, as shown by arrow AF4 in FIG. 1, air conditioning air is blown from the outlet 210 toward the feet of the occupants in the rear seat 52, and as shown by arrow AF5 in FIG. 1, the outlet 220 is blown. An air-conditioning wind is blown from the upper body of the occupant in the rear seat 52.

Further, in the determination of S100, if the air conditioner switch is not set to the ON state by the operation of the occupant with respect to the operation panel provided on the vehicle, the control device 30 proceeds to S108, and the air conditioner 10 is heating. Judge whether or not.

Further, even when the temperature of the rear seat space RS of the vehicle 5 collected in S102 is less than the threshold value, the control device 30 proceeds to S108 without performing the process of S106.

In S108, the control device 30 determines whether or not the air conditioner 10 is heating. For example, when the outside air temperature is low and the set temperature is higher than the inside air temperature by a predetermined temperature or more due to the operation of the occupant on the operation panel provided in the vehicle, the control device 30 is set to S108, and the air conditioner 10 is used. It is determined that the heating is in progress, and the process proceeds to S110.

Here, when the control device 30 determines that the air conditioner 10 is heating, the control device 30 collects the temperature state of the rear seat space RS of the vehicle 5 in S110. Specifically, the temperature of the air in the rear seat space RS of the vehicle 5 is collected from the rear temperature sensor 32.

Next, the control device 30 determines in S112 whether or not it is necessary to increase the heating. Specifically, it is determined whether or not it is necessary to increase the heating based on whether or not the temperature of the rear seat space RS of the vehicle 5 is smaller than the first threshold value and less than the second threshold value.

Here, when the temperature of the rear seat space RS of the vehicle 5 is less than the second threshold value, the control device 30 determines that it is necessary to increase the heating, and in S114, the suction port 200 of the ceiling blower 20 The air conditioner 10 is controlled so as to raise the temperature of the air conditioning air that reaches. Specifically, the air conditioner 10 is controlled so as to raise the temperature of the air conditioning air blown from the air outlet 120 of the instrument panel 55, and the process returns to the main routine.

As a result, the cooling capacity of the air conditioner 10 is increased, and the temperature of the air conditioning air blown from the air outlet 120 of the instrument panel 55 is further increased.

This air-conditioning air is blown from the air outlet 100 toward the upper body of the occupant of the front seat 51 as shown by the arrow AF1 in FIG. 8, and is blown from the air outlet 120 to the ceiling as shown by the arrow AF2 in FIG. The air is blown toward the suction port 200 of the device 20. Further, as shown by the arrow AF6 in FIG. 8, the air is blown toward the feet of the occupants in the front seat 51.

A part of the air-conditioning air blown from the air outlet 120 toward the suction port 200 of the ceiling blower 20 is sucked into the ceiling blower 20 as shown by the arrow AF3 in FIG. Then, warm air-conditioning air is blown from the air outlet 210 and the air outlet 220 into the rear seat space RS.

Specifically, the air-conditioning air is blown from the outlet 210 toward the feet of the occupants in the rear seat 52 as shown by the arrow AF4 in FIG. 8, and the outlet 220 is as shown by the arrow AF5 in FIG. An air-conditioning wind is blown from the upper body of the occupant in the rear seat 52.

Further, the air-conditioned air blown from the air conditioner 10 toward the feet of the occupants in the front seats 51 flows toward the feet of the occupants in the rear seats 52 as shown by the arrow AF7 in FIG.

As described above, in the vehicle air-conditioning system of the present embodiment, the temperature in the vehicle interior having the front seat space FS and the rear seat space RS of the vehicle is set from the air outlets 100 and 120 arranged on the instrument panel 55 of the vehicle. The air conditioner 10 for blowing the adjusted air conditioning air is provided. Further, the ceiling blower 20 is provided on the ceiling of the vehicle and blows the air-conditioning air sucked from the suction port 200 arranged on the ceiling to at least the rear seat space in the vehicle interior. Further, a state collecting unit (S102, S110, S202, S210) for collecting at least one of the temperature state of the rear seat space of the vehicle and the seat state of the vehicle is provided. In addition, the air-conditioning control unit (which adjusts at least one of the temperature and the air volume of the air-conditioning air that is blown from the air outlet and reaches the suction port of the ceiling air-conditioning device by controlling the air-conditioning device according to the state collected by the state collecting unit ( S106, S114, S206, S214).

According to such a configuration, the state collecting unit collects at least one state of the temperature state of the rear seat space of the vehicle and the seat state of the vehicle. Then, the air-conditioning control unit adjusts at least one of the temperature and the air volume of the air-conditioning air that is blown from the air outlet and reaches the suction port of the ceiling air-conditioning device by controlling the air-conditioning device according to the state collected by the state collecting unit. To do. Therefore, it is possible to provide the occupant with sufficient comfort with a simpler configuration without providing a plurality of air conditioners.

Further, the state collecting unit collects the temperature of the air in the rear seat space as the temperature state of the rear seat space of the vehicle. In this way, the temperature of the air in the rear seat space can be collected as the temperature state of the rear seat space of the vehicle.

Further, the outlet 120 is arranged at the center of the vehicle in the vehicle width direction. Therefore, it is possible to prevent the flow of the air-conditioning air blown from the air outlet 120 from being changed by the body of the occupant in the driver's seat or the passenger seat.

Further, the air outlet 120 is provided exclusively for guiding the air conditioning air to the suction port 200 of the ceiling blower 20. In this way, by providing the air outlet 120 provided exclusively for guiding the air-conditioning air to the suction port 200 of the ceiling blower 20, it is possible to provide the occupants with stable comfort.

Further, the suction port 200 of the ceiling blower 20 is arranged at the center in the vehicle width direction of the vehicle. In this way, the suction port 200 of the ceiling blower 20 can be arranged at the center of the vehicle in the vehicle width direction.

In particular, the air outlet 120 is arranged in the center of the vehicle width direction, and the suction port 200 of the ceiling blower 20 is arranged in the center of the vehicle width direction, so that the driver's seat and the passenger's seat occupants can use the air outlet 120. It is possible to prevent the flow of the conditioned air blown from the outlet 120 by the body from being obstructed.

(Second Embodiment)
The vehicle air conditioning system according to the second embodiment will be described with reference to FIGS. 9 to 10. The configuration of the vehicle air conditioning system of this embodiment is the same as that of the first embodiment. The vehicle air-conditioning system of the present embodiment is different from the vehicle air-conditioning system of the first embodiment in the processing of the control device 30.

FIG. 9 shows a flowchart of the control device 30 of the present embodiment. The control device 30 of the first embodiment collects the temperature state of the rear seat space RS of the vehicle in S102, but the control device 30 of the present embodiment collects the seat state of the vehicle in S202. To do. Then, in S206, the air conditioner 10 is controlled according to the seat condition of the vehicle to further lower the temperature of the air conditioner air reaching the suction port 200 of the ceiling blower 20.

When the control device 30 determines in S100 that the air conditioner 10 is cooling, the control device 30 collects the seat state of the vehicle in S202. Specifically, the seat state of the vehicle is collected based on the signal output from the front seat detection unit 33. The seating state of the vehicle includes the position of the front seat 51 of the vehicle 5 in the front-rear direction, the angle of the backrest of the seat 51, and the orientation of the seat 51.

Next, in S104, the control device 30 determines whether or not it is necessary to strengthen the cooling, and if it is determined that it is necessary to strengthen the cooling, the control device 30 determines the seating condition of the vehicle and determines the seating condition of the vehicle in S206. The air conditioner 10 is controlled according to the seat condition to lower the temperature of the air conditioner air reaching the suction port 200 of the ceiling blower 20, and this process is completed.

If the air conditioner 10 is not cooling, or if it is determined in S104 that it is not necessary to increase the cooling, the process proceeds to S108, and the control device 30 indicates that the air conditioner 10 is heating. Judge whether or not it is.

Here, when the control device 30 determines that the air conditioner 10 is heating, the seat state of the vehicle is collected in S210. Specifically, the seat state of the vehicle is collected based on the signal output from the front seat detection unit 33.

Next, the control device 30 determines in S212 whether or not it is necessary to increase the heating, and if it determines that it is necessary to increase the heating, in S214, determines the seating condition of the vehicle and the vehicle. The air conditioner 10 is controlled according to the seat condition to further raise the temperature of the air conditioner air reaching the suction port 200 of the ceiling blower 20, and this process is completed.

If the air conditioner 10 is not heating, or if it is determined in S210 that it is not necessary to increase the heating, this process ends without proceeding to S214.

Hereinafter, the control processing of the control device 30 will be described separately for the cases (A) to (D).

(A) When the air conditioner 10 is cooling, the front seat 51 is located on the rear side of the vehicle based on the seat condition of the vehicle, and the backrest of the seat 51 is in the reclining state. In this case, the control device 30 is , S100 determines that the air conditioner 10 is cooling, and S202 collects the seat state of the vehicle. Then, when the control device 30 determines in S104 that it is necessary to strengthen the cooling, the process proceeds to S206.

Here, the control device 30 determines in S206 whether or not the seat state of the vehicle is the reclining state. Specifically, based on the collected state, the seat state of the vehicle is in the reclining state based on whether the front seat 51 is located on the rear side of the vehicle and the backrest of the seat 51 is tilted from a predetermined position. It is determined whether or not it is.

Then, when this determination is affirmative, the air conditioner 10 is controlled so as to further lower the temperature of the air conditioning air reaching the suction port 200 of the ceiling blower 20.

Further, as shown by the arrow AF1 in FIG. 10, the control device 30 reduces the air volume of the conditioned air blown from the air outlet 100 as compared with the case of the first embodiment, and the arrow AF2 in FIG. As shown, the air volume of the conditioned air blown from the outlet 120 is increased.

The control device 30 can reduce the amount of air-conditioning air blown from the air outlet 100 by controlling a louver (not shown) provided at the air outlet 100.

As a result, the air volume of the air conditioning air blown from the air outlet 100 decreases, so that the air volume of the air conditioning air reaching the upper body of the occupant of the front seat 51 decreases, but the air conditioning air reaches the suction port 200 of the ceiling blower 20. The air volume of the wind increases.

Further, as compared with the case of the first embodiment, the control device 30 does not change the direction of the conditioned air blown from the air outlet 220 of the ceiling blower 20, and the direction of the conditioned air blown from the air outlet 210. To the front side of the vehicle.

As a result, the air-conditioning air flows toward the head of the occupant of the seat 51 in the reclining state. That is, the amount of air-conditioned air blown from the air outlet 100 away from the upper body of the occupant of the seat 51 is reduced, but the conditioned air from the suction port 200 of the ceiling blower 20 near the head of the occupant of the seat 51 is occupant. Can be made to flow along the head of the air conditioner.

(B) When the air conditioner 10 is in the cooling state and the front seat 51 of the vehicle is in a state of being rotated so as to face the rear of the vehicle. In this case, the control device 30 is in S100 and the air conditioner 10 is in the cooling state. It is determined that there is, and the seat condition of the vehicle is collected in S202. Then, when the control device 30 determines in S104 that it is necessary to strengthen the cooling, the process proceeds to S206.

Here, the control device 30 determines in S206 whether or not the seat state of the vehicle is in the rearward facing state. Specifically, based on the collected state, it is determined whether or not the vehicle is in a state of being rotated so as to face the rear of the vehicle.

Then, when this determination is affirmative, the air conditioner 10 is controlled so as to further lower the temperature of the air conditioning air reaching the suction port 200 of the ceiling blower 20.

Further, the control device 30 controls the air conditioner 10 and the ceiling blower 20 so as to have the flow of the air conditioning air as shown in FIG.

Specifically, the control device 30 prevents the air-conditioning air from being blown from the air outlet 100, and increases the air volume of the air-conditioning air blown from the air outlet 120.

As a result, since the air conditioning air is not blown from the air outlet 100, it is possible to suppress a decrease in efficiency due to the air conditioning air hitting the backrest of the front seat 51. It is also possible to increase the air volume of the air conditioner air reaching the suction port 200 of the ceiling blower 20.

Further, the control device 30 changes the direction of the air conditioning air blown from the air outlet 210 of the ceiling blower 20 toward the front side of the vehicle as compared with the case of the first embodiment.

As a result, the air-conditioning air can be blown toward the upper body of the occupant who is wearing the seat 51 so as to face the rear of the vehicle.

(C) When the air conditioner 10 is heating, the front seat 51 is located on the rear side of the vehicle based on the seat condition of the vehicle, and the backrest of the seat 51 is in the reclining state. In this case, the control device 30 is , S108 determines that the air conditioner 10 is heating, and S202 collects the seat state of the vehicle. Then, when the control device 30 determines in S210 that it is necessary to increase the heating, the process proceeds to S214.

Here, the control device 30 determines in S214 whether or not the seat state of the vehicle is the reclining state. Specifically, based on the collected state, the seat state of the vehicle is in the reclining state based on whether the front seat 51 is located on the rear side of the vehicle and the backrest of the seat 51 is tilted from a predetermined position. It is determined whether or not it is.

Then, when this determination is affirmative, the air conditioner 10 is controlled so as to further raise the temperature of the air conditioning air reaching the suction port 200 of the ceiling blower 20.

Further, as shown by the arrow AF1 in FIG. 12, the control device 30 reduces the air volume of the conditioned air blown from the air outlet 100 as compared with the case of the first embodiment, and the arrow AF2 in FIG. As shown, the air volume of the conditioned air blown from the outlet 120 is increased.

The control device 30 can reduce the amount of air-conditioning air blown from the air outlet 100 by controlling a louver (not shown) provided at the air outlet 100.

As a result, the air volume of the air conditioning air blown from the air outlet 100 is reduced, so that the air volume of the air conditioning air reaching the upper body of the occupant of the front seat 51 is reduced, but the air conditioning air reaching the suction port 200 of the ceiling blower 20 is reduced. The air volume of the wind increases.

Further, the control device 30 does not change the direction of the conditioned air blown from the air outlet 220 of the ceiling blower 20, but changes the direction of the conditioned air blown from the air outlet 210 toward the front side of the vehicle.

As a result, the air-conditioning air flows toward the head of the occupant of the seat 51 in the reclining state. That is, the amount of air-conditioned air blown from the air outlet 100 away from the upper body of the occupant of the seat 51 is reduced, but the conditioned air from the suction port 200 of the ceiling blower 20 near the head of the occupant of the seat 51 is occupant. Can be made to flow along the head of the air conditioner.

Further, when the air conditioner 10 is heating, not only the heated air conditioning air is blown from the air outlet 100 and the air outlet 120 of the instrument panel 55, but also the feet of the occupants in the front seat 51 as shown by the arrow AF6. The air-conditioned air heated toward is blown.

(D) When the air conditioner 10 is heating and the front seat 51 of the vehicle is in a state of rotating so as to face the rear of the vehicle In this case, the control device 30 is in S108, and the air conditioner 10 is heating. It is determined that there is, and the seat condition of the vehicle is collected in S210. Then, when the control device 30 determines in S112 that it is necessary to increase the heating, the process proceeds to S214.

Here, the control device 30 determines in S206 whether or not the seat state of the vehicle is in the rearward facing state. Specifically, based on the collected state, it is determined whether or not the vehicle is in a state of being rotated so as to face the rear of the vehicle.

Then, when this determination is affirmative, the air conditioner 10 is controlled so as to further raise the temperature of the air conditioning air reaching the suction port 200 of the ceiling blower 20.

Further, the control device 30 controls the air conditioner 10 and the ceiling blower 20 so as to have the flow of the air conditioning air as shown in FIG.

Specifically, the control device 30 prevents the air-conditioning air from being blown from the air outlet 100, and increases the air volume of the air-conditioning air blown from the air outlet 120.

As a result, since the air conditioning air is not blown from the air outlet 100, it is possible to suppress a decrease in efficiency due to the air conditioning air hitting the backrest of the front seat 51. It is also possible to increase the air volume of the air conditioner air reaching the suction port 200 of the ceiling blower 20.

Further, the control device 30 adjusts the direction of the air conditioning air blown from the air outlet 210 of the ceiling blower 20 toward the front side of the vehicle as compared with the case of the first embodiment.

As a result, the air-conditioning air can be blown toward the upper body of the occupant who is wearing the seat 51 so as to face the rear of the vehicle.

Further, when the air conditioner 10 is heating, not only the heated air conditioning air is blown from the air outlet 100 and the air outlet 120 of the instrument panel 55, but also the feet of the occupants in the front seat 51 as shown by the arrow AF6. The air-conditioned air heated toward is blown.

In the present embodiment, the same effect obtained from the same configuration as that of the first embodiment can be obtained in the same manner as that of the first embodiment.

Further, the control device 30 collects at least one of the front-rear position of the vehicle seat, the angle of the backrest of the vehicle seat, the orientation of the vehicle seat, and the presence or absence of an occupant of the vehicle seat as the vehicle seat state. ..

In this way, at least one of the front-rear position of the vehicle seat, the angle of the backrest of the vehicle seat, the orientation of the vehicle seat, and the presence or absence of the occupant of the vehicle seat can be collected as the vehicle seat state.

Further, the control device 30 determines the direction of the air conditioning air blown from the ceiling blower according to at least one of the collected vehicle seat front-rear position, the vehicle seat backrest angle, and the vehicle seat orientation. To change.

In this way, the direction of the conditioned air blown from the ceiling blower 20 is changed according to at least one of the collected front-rear position of the vehicle seat, the angle of the backrest of the vehicle seat, and the orientation of the vehicle seat. Can be made to.

(Third Embodiment)
The vehicle air conditioning system according to the third embodiment will be described with reference to FIG. The instrument panel 55 of the present embodiment is not provided with the outlet 120 of each of the above-described embodiments. The vehicle air conditioning system 1 of the present embodiment is configured so that the air conditioning air blown from the air outlet 100 instead of the air outlet 120 reaches the suction port 200 of the ceiling blower 20.

As shown in FIG. 15, the plurality of air outlets 100 are provided with wind direction adjusting plates 110. The wind direction adjusting plate 110 adjusts the direction of the air-conditioning air blown into the vehicle interior from the air outlet 100. For example, the wind direction adjusting plate 110 includes a plurality of horizontal louvers 110a for changing the wind direction of the air-conditioned air blown into the vehicle interior from the air outlet 100 in the direction of gravity, and the wind direction of the air-conditioned air for changing the wind direction in the vehicle width direction. It is equipped with a plurality of vertical louvers 110b. The horizontal louver 110a and the vertical louver 110b included in the wind direction adjusting plate 110 of the present embodiment are driven by an actuator such as a servomotor (not shown).

The control device 30 controls the actuators that drive the vertical louvers 110b and the horizontal louvers 110a so that the conditioned air blown from the air outlet 100 reaches the suction port 200 of the ceiling blower 20.

By doing so, the conditioned air from the air outlet 100 can reach the suction port 200 of the ceiling blower 20 without providing the air outlet 120 of each of the above embodiments.

When the front seat 51 of the vehicle is in the reclining state, the air conditioner 10 and the ceiling blower 20 can be controlled so as to have the flow of the air conditioning air shown in FIG.

Further, when the front seat 51 of the vehicle is rotated so as to face the rear of the vehicle, the air conditioner 10 and the ceiling blower 20 can be controlled so as to have the flow of the air conditioning air shown in FIG.

In the present embodiment, the same effect obtained from the same configuration as that of the first embodiment can be obtained in the same manner as that of the first embodiment.

Further, the air outlet 100 is a face air outlet that blows air-conditioned air toward the front seat space of the vehicle, and the face air outlet is provided with a wind direction adjusting plate 110 that changes the air-conditioning air blowing direction. Then, the direction of the air-conditioning air blown out from the face outlet by the wind direction adjusting plate 110 is directed to the suction port 200 of the ceiling blower 20.

In this way, the air-conditioning air can be guided to the suction port 200 of the ceiling blower 20 by using the face outlet.

(Other embodiments)
(1) In each of the above embodiments, the temperature state of the rear seat space RS of the vehicle 5 is collected in S102, but in addition to the temperature of the rear seat space RS of the vehicle 5, the outside air temperature, the amount of solar radiation, and the like. It is also possible to collect at least one of the number of occupants in vehicle 5. Then, the heat load of the rear seat space RS of the vehicle 5 can be comprehensively determined based on various collected information, and the temperature of the conditioned air reaching the suction port 200 of the ceiling blower 20 can be adjusted.

(2) In the first embodiment, in order to determine the heat load of the rear seat space RS of the vehicle 5, the temperature of the air in the rear seat space RS of the vehicle 5 is detected, and a signal indicating the detected temperature is output as a control device. A rear temperature sensor 32 that outputs to 30 is provided.

On the other hand, in order to determine the heat load of the rear seat space RS of the vehicle 5, the surface temperature of the interior parts arranged in the rear seat space RS of the vehicle 5 and the body of the occupant seated in the seat of the vehicle 5 An infrared sensor that detects at least one surface temperature of the surface temperature can also be provided. The surface temperature of the occupant's body may be the surface temperature of the occupant's clothing or the surface temperature of the occupant's body skin.

(3) In the above embodiment, in S106, the temperature of the air-conditioning air reaching the suction port 200 of the ceiling blower 20 is lowered. On the other hand, the air conditioner 10 may be controlled so as to increase the air volume of the air conditioning air reaching the suction port 200 of the ceiling blower 20. Further, the air conditioner 10 may be controlled so as to lower the temperature of the air conditioning air reaching the suction port 200 of the ceiling blower 20 and increase the air volume of the air conditioning air.

(4) In the above embodiment, in S114, the temperature of the air-conditioning air reaching the suction port 200 of the ceiling blower 20 is increased. On the other hand, the air conditioner 10 may be controlled so as to increase the air volume of the air conditioning air reaching the suction port 200 of the ceiling blower 20. Further, the air conditioner 10 may be controlled so as to raise the temperature of the air conditioning air reaching the suction port 200 of the ceiling blower 20 and increase the air volume of the air conditioning air.

(5) In the first embodiment, the state collecting unit collects the temperature state of the rear seat space of the vehicle, and in the second embodiment, the seat state of the vehicle is collected. On the other hand, the state collecting unit may collect both the temperature state of the rear seat space of the vehicle and the seat state of the vehicle.

(6) The temperature and air volume of the conditioned air reaching the suction port 200 of the ceiling blower 20 are changed according to the presence or absence of occupants in the front seats 51 and the rear seats 52 detected by the occupant detection unit 34 of the above embodiment. It may be. Further, the direction of the air conditioning air blown from the ceiling blower 20 may be adjusted according to the presence or absence of passengers in the front seats 51 and the rear seats 52 detected by the occupant detection unit 34.

The present invention is not limited to the above-described embodiment, and can be appropriately modified within the scope of the claims. Further, the above-described embodiments are not unrelated to each other, and can be appropriately combined unless the combination is clearly impossible. Further, in each of the above embodiments, it goes without saying that the elements constituting the embodiment are not necessarily essential except when it is clearly stated that they are essential and when they are clearly considered to be essential in principle. No. Further, in each of the above embodiments, when numerical values such as the number, numerical values, amounts, and ranges of the constituent elements of the embodiment are mentioned, when it is clearly stated that they are particularly essential, and in principle, they are clearly limited to a specific number. It is not limited to the specific number except when it is done. Further, in each of the above embodiments, when referring to the material, shape, positional relationship, etc. of the constituent elements, etc., except when specifically specified or when the material, shape, positional relationship, etc. are limited in principle. , The material, shape, positional relationship, etc. are not limited.

(Summary)
According to the first aspect shown in part or all of the above embodiments, the vehicle air conditioner includes an air conditioner and a ceiling blower. The air conditioner blows temperature-controlled air conditioning air from an air outlet arranged on the instrument panel of the vehicle into the vehicle interior having the front seat space and the rear seat space of the vehicle. Further, the ceiling blower is arranged on the ceiling of the vehicle, and the air-conditioning air sucked from the suction port arranged on the ceiling is blown to at least the rear seat space in the vehicle interior. Further, the vehicle air conditioning system includes a state collecting unit that collects at least one of the temperature state of the rear seat space of the vehicle and the seat state of the vehicle. Further, an air conditioning control unit that adjusts at least one of the temperature and the air volume of the air conditioning air that is blown from the air outlet and reaches the suction port of the ceiling blower by controlling the air conditioning device according to the state collected by the state collecting unit. I have.

Further, according to the second aspect, the state collecting unit collects the temperature of the air in the rear seat space as the temperature state of the rear seat space of the vehicle. In this way, the temperature of the air in the rear seat space can be collected as the temperature state of the rear seat space of the vehicle.

Further, according to the third viewpoint, the state collecting unit determines the surface temperature of the interior parts arranged in the rear seat space as the temperature state of the rear seat space of the vehicle and the occupant seated in the seat of the vehicle. At least one surface temperature of the surface temperature of is collected.

As described above, as the temperature state of the rear seat space of the vehicle, the surface temperature of at least one of the surface temperature of the interior parts arranged in the rear seat space and the surface temperature of the occupant seated in the seat of the vehicle is set to the vehicle. It can also be collected as the temperature state of the rear seat space.

Further, according to the fourth viewpoint, the air outlet is arranged at the center of the vehicle in the vehicle width direction. Therefore, it is possible to prevent the flow of the air-conditioning air blown from the air outlet from being changed by the body of the occupant in the driver's seat or the passenger seat.

Further, according to the fifth aspect, the air outlet is provided exclusively for guiding the air-conditioning air to the suction port of the ceiling blower. In this way, by providing the air outlet provided exclusively for guiding the air-conditioning air to the suction port 200 of the ceiling blower 20, it is possible to provide the occupants with stable comfort.

Further, according to the sixth aspect, the air outlet is a face air outlet that blows the air-conditioned air toward the front seat space of the vehicle, and the face air outlet is provided with the air-conditioning air blowing direction. A wind direction adjustment plate to be changed is provided. Then, the blowing direction of the air-conditioning air blown out from the face outlet by the wind direction adjusting plate is directed to the suction port of the ceiling blower. In this way, the air-conditioning air can be guided to the suction port of the ceiling blower by using the face air outlet.

Further, according to the seventh aspect, the suction port of the ceiling blower is arranged at the center in the vehicle width direction of the vehicle. In this way, the suction port of the ceiling blower can be arranged at the center of the vehicle in the vehicle width direction.

Further, according to the eighth aspect, the state collecting unit determines the seat state of the vehicle as the position of the seat of the vehicle in the front-rear direction, the angle of the backrest of the seat of the vehicle, the orientation of the seat of the vehicle, and the vehicle. Collect at least one of the seats with or without occupants.

In this way, at least one of the front-rear position of the vehicle seat, the angle of the backrest of the vehicle seat, the orientation of the vehicle seat, and the presence or absence of the occupant of the vehicle seat can be collected as the vehicle seat state.

Further, according to the ninth aspect, the air conditioning control unit includes the position in the front-rear direction of the seat of the vehicle collected by the state collecting unit, the angle of the backrest of the seat of the vehicle, the orientation of the seat of the vehicle, and the above. The direction of the conditioned air blown from the ceiling blower is adjusted according to at least one of the presence or absence of a occupant in the seat of the vehicle.

Thus, the air blown from the ceiling blower 20 depending on at least one of the collected vehicle seat anterior-posterior position, vehicle seat backrest angle, vehicle seat orientation and vehicle seat occupant presence or absence. The direction of the air conditioning air to be installed can be adjusted.

Explaining the correspondence between the configuration in the above embodiment and the configuration of the claims, the processing of S102, S110, S202, and S210 corresponds to the state collecting unit, and the processing of S106, S114, S206, and S214 is air conditioning. Corresponds to the control unit.

1 Vehicle air conditioning system 5 Vehicle 10 Air conditioner 20 Ceiling blower 30 Control device 31 Front temperature sensor 32 Rear temperature sensor 33 Front seat detection unit 34 Rear seat occupant detection unit 51 Front seat 52 Rear seat 55 Instrument panel 100 Air outlet 120 Air conditioner 200 suction port

Claims (9)

A vehicle air conditioning system that air-conditions vehicles.
A temperature-controlled air-conditioned air is blown from the air outlets (100, 120) arranged on the instrument panel (55) of the vehicle into the vehicle interior having the front seat space (FS) and the rear seat space (RS) of the vehicle. Air conditioner (10) and
A ceiling blower (20) arranged on the ceiling of the vehicle and sucking the air-conditioning air from the suction port (200) arranged on the ceiling to at least the rear seat space in the vehicle interior.
A state collecting unit (S102, S110, S202, S210) that collects at least one of the temperature state of the rear seat space of the vehicle and the seat state of the vehicle.
By controlling the air conditioner according to the state collected by the state collecting unit, at least one of the temperature and the air volume of the air conditioner that is blown from the air outlet and reaches the suction port of the ceiling blower is adjusted. A vehicle air conditioning system including an air conditioning control unit (S106, S114, S206, S214). The vehicle air-conditioning system according to claim 1, wherein the state collecting unit collects the temperature of the air in the rear seat space as the temperature state of the rear seat space of the vehicle. The state collecting unit has at least one surface temperature of the surface temperature of the interior parts arranged in the rear seat space and the surface temperature of the occupant seated in the vehicle seat as the temperature state of the rear seat space of the vehicle. The vehicle air conditioning system according to claim 1 or 2. The vehicle air-conditioning system according to any one of claims 1 to 3, wherein the air outlet is located at the center of the vehicle in the vehicle width direction. The vehicle air-conditioning system according to claim 4, wherein the air outlet (120) is provided exclusively for guiding the air-conditioning air to the suction port of the ceiling blower. The air outlet is a face air outlet (100) that blows the air-conditioning air toward the front seat space of the vehicle.
The face outlet is provided with a wind direction adjusting plate (110) for changing the blowing direction of the air conditioning air.
The vehicle air-conditioning system according to claim 4, wherein the air-conditioning air blown out from the face air outlet by the wind direction adjusting plate is directed toward the suction port of the ceiling blower. The vehicle air-conditioning system according to any one of claims 1 to 6, wherein the suction port of the ceiling blower is arranged at the center in the vehicle width direction of the vehicle. The state collecting unit determines the seat state of the vehicle as at least one of the position of the seat of the vehicle in the front-rear direction, the angle of the backrest of the seat of the vehicle, the orientation of the seat of the vehicle, and the presence or absence of an occupant of the seat of the vehicle. The vehicle air conditioning system according to any one of claims 1 to 7. The air conditioning control unit is at least the position of the vehicle seat in the front-rear direction, the angle of the backrest of the vehicle seat, the orientation of the vehicle seat, and the presence or absence of an occupant of the vehicle seat, which are collected by the state collecting unit. The vehicle air conditioning system according to claim 8, wherein the direction of the air conditioning air blown from the ceiling blower is adjusted according to one.

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