WO2021075258A1 - Automotive air conditioning system - Google Patents

Abstract

An automotive air conditioning system according to the present invention comprises an air conditioning device (10), a roof blower device (20), a state gathering unit (S102, S110, S202, S210), and an air conditioning control unit (S106, S114, S206, S214). The air conditioning device blows temperature-adjusted air conditioning air from vents (100, 120) disposed in a dashboard of a vehicle and into a vehicle interior comprising a front seat space (FS) and a back seat space (FR) of the vehicle. The roof blower device is disposed in the roof of the vehicle, and blows air conditioning air, taken in through an intake port (200) disposed in the roof, into at least the back seat space of the vehicle interior. The state gathering unit gathers the temperature state of the back seat space of the vehicle and/or a vehicle seat state. The air conditioning control unit controls the air conditioning device in accordance with the state, gathered by the state gathering unit, so as to adjust the temperature and/or volume of air conditioning air that is blown from the vents and reaches the intake port of the roof blower device.

Description

Vehicle air conditioning system Cross-reference to related applications

This application is based on Japanese Patent Application No. 2019-191108 filed on October 18, 2019, the contents of which are incorporated herein by reference.

This disclosure relates to an air conditioning system for vehicles.

Conventionally, there is a ceiling circulator installed on the ceiling of a vehicle to blow air into the vehicle interior. This device can adjust the air volume and direction of the air to be blown. 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 purpose of this disclosure is to enable the occupants to be provided with sufficient comfort with a simpler configuration.

According to one aspect of the present disclosure, a vehicle air-conditioning system for air-conditioning a vehicle is temperature-controlled from an air outlet arranged on the instrument panel of the vehicle into a vehicle interior having a front seat space and a rear seat space of the vehicle. An air conditioner that blows air from the air conditioner, a ceiling air conditioner that is placed on the ceiling of the vehicle and sucks air from the suction port arranged on the ceiling to at least the rear seat space in the vehicle interior, and a rear seat of the vehicle. Air is blown from the air outlet by controlling the air conditioner according to the state collecting unit that collects at least one of the temperature state of the space and the seating state of the vehicle and the state collected by the state collecting unit, and the suction of the ceiling blower. It is provided with an air conditioner control unit that adjusts at least one of the temperature and the air volume of the air conditioner air reaching the mouth.

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, the vehicle air-conditioning system can provide sufficient comfort to the occupants with a simpler configuration without providing a plurality of air-conditioning devices.

Note that the reference symbols 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 air-conditioning system for a vehicle of 1st Embodiment. It is a flowchart of the control process 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 process 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 air-conditioning wind of the air-conditioning 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 air-conditioning wind of the air-conditioning 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 disclosure 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 front seats 51 and rear seats 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 conditioner 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 a first outlet 100 and a second outlet 120 as outlets. As shown by the arrow AF1 in FIG. 1, the first 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 second air outlet 120 is an upper air outlet that blows air conditioning air toward the suction port 200 of the ceiling blower 20. The second outlet 120 is provided at the center of the vehicle 5 in the vehicle width direction. The second outlet 120 is arranged in front of the vehicle from the first outlet 100.

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

The first outlet 100 is connected to the air conditioner 10 via the face duct 114a. The second outlet 120 is connected to the air conditioner 10 via the upper outlet duct 117a. The first air outlet 100 is provided with a louver as a wind direction adjusting plate 110 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 first outlet 100 into the vehicle interior of the vehicle 5 through the face duct 114a, and also through the upper outlet duct 117a from the second outlet 120 into the vehicle interior of the vehicle 5. Blow out.

The ceiling blower 20 is provided on the ceiling of the vehicle 5. As shown in FIGS. 1 and 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 includes a centrifugal blower 200a, a suction port 200, a ceiling first air outlet 210, and a ceiling second air 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 second air outlet 120 provided in the center of the vehicle 5 in the vehicle width direction is sucked into the ceiling blower 20 from the suction port 200. Therefore, the conditioned air flows from the second outlet 120 to the suction port 200 of the ceiling blower 20 regardless of the postures of the occupants 6 of the front seats 51 and the rear seats 52.

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

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

The ceiling first right air 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 ceiling first left air outlet 210b is mainly an assistant in the rear seat space RS. Air-conditioning air is blown toward the front side of the vehicle on the seat side.

The ceiling second outlet 220 has a ceiling second right outlet 220a and a ceiling second left outlet 220b. The ceiling second right air outlet 220a mainly blows air conditioning air toward the rear side of the vehicle on the driver's seat side of the rear seat space RS, and the ceiling second left air outlet 220b mainly blows the rear seat space RS. Of these, the air-conditioning wind is blown toward the rear side of the vehicle on the passenger seat side.

The ceiling first right air outlet 210a and the ceiling first left 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.

The centrifugal blower 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 first outlet 100 is omitted.

As shown by the arrow AF2 in FIG. 4, the air-conditioning air is blown into the vehicle interior from the second outlet 120 of the instrument panel 55, and a part of the air-conditioning air is sucked into the ceiling 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.

Inside the air conditioning case 11, a ventilation passage 111 through which air flows is formed. 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 is composed of 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 passes through any of a plurality of outlet openings 114, 115, 116, 117 communicating with the ventilation passage 111. And it is blown out 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).

The 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 blowout 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 opening 114, the foot outlet opening 115, the defroster outlet opening 116, and the upper outlet opening 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 above-mentioned inside / outside air switching door 12, air mix door 16, face door 171, foot door 172, defroster door 173, and 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. It has 30.
The front temperature sensor 31 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 outputs a signal indicating the position of the front seat 51 of the vehicle 5 in the front-rear direction, a signal indicating the angle of the backrest of the front seat 51, and a signal indicating the direction of the front seat 51. 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. A memory such as a ROM or RAM is a non-transitional substantive storage medium. 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. Steps are referred to as "S" in the following description and drawings.

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 second 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 second outlet 120 of the instrument panel 55 is further lowered. This air-conditioning air is blown from the first outlet 100 toward the upper body of the occupant of the front seat 51 as shown by the arrow AF1 in FIG. 1, and the second outlet 120 as shown by the arrow AF2 in FIG. Is blown toward the suction port 200 of the ceiling blower 20.

A part of the air conditioning air blown from the second 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-conditioning air is blown into the rear seat space RS from the ceiling first air outlet 210 and the ceiling second air outlet 220. Specifically, as shown by the arrow AF4 in FIG. 1, the air-conditioning air is blown from the ceiling first outlet 210 toward the feet of the occupants in the rear seat 52, and as shown by the arrow AF5 in FIG. Air-conditioning air is blown from the second ceiling outlet 220 toward 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 on the operation panel provided on the vehicle, the control device 30 proceeds to S108 and whether 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 temperature state of the rear seat space RS of the vehicle 5 is collected 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 second 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 conditioner air blown from the second outlet 120 of the instrument panel 55 is further increased.

This air-conditioning air is blown from the first 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 also blown from the second outlet as shown by the arrow AF2 in FIG. Air is blown from 120 toward the suction port 200 of the ceiling blower 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 second 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 into the rear seat space RS from the ceiling first air outlet 210 and the ceiling second air outlet 220.

Specifically, as shown by the arrow AF4 in FIG. 8, the air-conditioning air is blown from the ceiling first outlet 210 toward the feet of the occupants in the rear seat 52, and as shown by the arrow AF5 in FIG. Air-conditioning air is blown from the second ceiling outlet 220 toward 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 seat 51 flows toward the feet of the occupants in the rear seat 52 as shown by the arrow AF7 in FIG.

As described above, the vehicle air-conditioning system of the present embodiment has a front seat space FS and a rear seat space RS from the first air outlet 100 and the second air outlet 120 arranged on the instrument panel 55 of the vehicle. An air conditioner 10 for blowing air-conditioned air whose temperature is adjusted is provided in the vehicle interior. Further, the vehicle air conditioning system includes a ceiling blower 20 that is arranged on the ceiling of the vehicle and blows 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, the vehicle air-conditioning system includes a state collecting unit (S102, S110, S202, S210) that collects at least one state of the temperature state of the rear seat space RS of the vehicle and the seat state of the vehicle. Further, in the vehicle air-conditioning system, the temperature of the air-conditioning air that is blown from the second outlet 120 and reaches the suction port 200 of the ceiling air-conditioning device 20 by controlling the air-conditioning device 10 according to the state collected by the state collecting unit. And an air conditioning control unit (S106, S114, S206, S214) that adjusts at least one of the air volumes.

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 controls the air conditioning device 10 according to the state collected by the state collecting unit, so that the temperature of the air conditioning air that is blown from the second outlet 120 and reaches the suction port 200 of the ceiling blower 20 and the temperature of the air conditioning air. Adjust at least one of the air volumes. Therefore, the vehicle air-conditioning system can provide sufficient comfort to the occupants with a simpler configuration without providing a plurality of air-conditioning devices.

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

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

Further, the second 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 second air outlet 120 provided exclusively for guiding the air-conditioning air to the suction port 200 of the ceiling air 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, in the vehicle air-conditioning system of the present embodiment, the second air outlet 120 is arranged at the center of the vehicle width direction, and the suction port 200 of the ceiling blower 20 is arranged at the center of the vehicle width direction. It is a composition. As a result, the flow of the air-conditioning air blown from the second outlet 120 can be sucked into the suction port 200 of the ceiling blower 20 without being obstructed by the bodies of the occupants in the driver's seat and the passenger seat. is there.

(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 front seat 51, and the orientation of the front seat 51.

Next, the control device 30 determines in S104 whether or not it is necessary to strengthen the cooling. When the control device 30 determines in S104 that it is necessary to strengthen the cooling, the control device 30 determines the seating condition of the vehicle in S206 and controls the air conditioner 10 according to the seating condition of the vehicle to blow the ceiling blower 20. The temperature of the air-conditioning air reaching the suction port 200 of the above is lowered, and this process is completed.

If the air conditioner 10 is not being cooled in S100, 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 is set by the air conditioner 10. Determine if heating is in progress.

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. When the control device 30 determines that it is necessary to increase the heating in S212, the control device 30 determines the seating condition of the vehicle in S214 and controls the air conditioning device 10 according to the seating condition of the vehicle to suck the ceiling blower 20. The temperature of the conditioned air reaching the mouth 200 is further raised, and this process is completed.

If the air conditioner 10 is not being heated in S108, or if it is determined in S210 that it is not necessary to increase the heating, the control device 30 performs this process without proceeding to S214. finish.

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 front seat 51 is in the reclining state. In this case, the control device 30 Determines that the air conditioner 10 is cooling in S100, and collects the seat state of the vehicle 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 the reclining state. Specifically, based on the collected state, the seat state of the vehicle reclines based on whether the front seat 51 is located on the rear side of the vehicle and the backrest of the front seat 51 is tilted from a predetermined position. Determine if it is in a state.

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 first outlet 100 as compared with the case of the first embodiment, and the arrow in FIG. As shown in AF2, the air volume of the conditioned air blown from the second outlet 120 is increased.

The control device 30 can reduce the air volume of the conditioned air blown out from the first outlet 100 by controlling the louver as the wind direction adjusting plate 110 provided in the first outlet 100.

As a result, the air volume of the air conditioning air blown from the first 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 reaches the suction port 200 of the ceiling blower 20. The air volume of the air-conditioning air is increased.

Further, the control device 30 does not change the direction of the conditioned air blown from the ceiling second outlet 220 of the ceiling blower 20 as compared with the case of the first embodiment, and blows out from the ceiling first outlet 210. The direction of the air-conditioning wind is changed to the front side of the vehicle.

As a result, the air conditioning air will flow toward the head of the occupant in the front seat 51 who is in the reclining state. That is, the amount of air-conditioned air blown from the first air outlet 100 away from the upper body of the occupant in the front seat 51 is reduced, but the first air outlet in the ceiling of the ceiling blower 20 near the head of the occupant in the front seat 51. The air conditioning air from 210 can be made to flow along the occupant's head.

(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 that the flow of the air conditioning air is as shown in FIG.

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

As a result, since the air conditioning air is not blown from the first 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 ceiling first 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 front 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 front seat 51 is in the reclining state. In this case, the control device 30 Determines that the air conditioner 10 is heating in S108, and collects the seat state of the vehicle 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 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 reclines based on whether the front seat 51 is located on the rear side of the vehicle and the backrest of the front seat 51 is tilted from a predetermined position. Determine if it is in a state.

Then, when this determination is affirmative, the control device 30 controls the air conditioner 10 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 first outlet 100 as compared with the case of the first embodiment, and the arrow in FIG. As shown in AF2, the air volume of the conditioned air blown from the second outlet 120 is increased.

The control device 30 can reduce the air volume of the conditioned air blown out from the first outlet 100 by controlling the louver as the wind direction adjusting plate 110 provided in the first outlet 100.

As a result, the air volume of the air conditioning air blown from the first 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 reaches the suction port 200 of the ceiling blower 20. The air volume of the air-conditioning air is increased.

Further, the control device 30 does not change the direction of the air conditioning air blown from the ceiling second air outlet 220 of the ceiling blower 20, and directs the air conditioning air blown from the ceiling first air outlet 210 to the front side of the vehicle. Change.

As a result, the air conditioning air will flow toward the head of the occupant in the front seat 51 who is in the reclining state. That is, the amount of air-conditioned air blown from the first air outlet 100 away from the upper body of the occupant in the front seat 51 is reduced, but the first air outlet in the ceiling of the ceiling blower 20 near the head of the occupant in the front seat 51. The air conditioning air from 210 can be made to flow along the occupant's head.

When the air conditioner 10 is heating, not only the heated air conditioning air is blown from the first air outlet 100 and the second air outlet 120 of the instrument panel 55, but also the front seat 51 is shown by the arrow AF6. Heated air-conditioning air is blown toward the feet of the occupants.

(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 S214 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 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 that the flow of the air conditioning air is as shown in FIG.

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

As a result, since the air conditioning air is not blown from the first 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 ceiling first 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 front seat 51 so as to face the rear of the vehicle.

When the air conditioner 10 is heating, not only the heated air conditioning air is blown from the first air outlet 100 and the second air outlet 120 of the instrument panel 55, but also the front seat 51 is shown by the arrow AF6. Heated air-conditioning air is blown toward the feet of the occupants.

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

Further, the control device 30 determines the vehicle seat state, such as the position of the front seat 51 of the vehicle in the front-rear direction, the angle of the backrest of the front seat 51 of the vehicle, the direction of the front seat 51 of the vehicle, and the seat of the vehicle (that is, the front seat 51). Or at least one of the presence or absence of a occupant in at least one of the rear seats 52) is collected.

Thus, the position of the front seat 51 of the vehicle in the front-rear direction, the angle of the backrest of the front seat 51 of the vehicle, the orientation of the front seat 51 of the vehicle and the seat of the vehicle (that is, at least one of the front seat 51 or the rear seat 52). At least one with or without occupants can also be collected as the seating condition of the vehicle.

Further, the control device 30 determines the position of the collected front seat 51 of the vehicle in the front-rear direction, the angle of the backrest of the front seat 51 of the vehicle, the orientation of the front seat 51 of the vehicle, and the seat of the vehicle (that is, the front seat 51 or the rear seat). The direction of the air conditioning air blown from the ceiling blower 20 is changed according to at least one of the presence or absence of an occupant (at least one of 52).

Thus, the front-rear position of the front seat 51 of the vehicle collected, the angle of the backrest of the front seat 51 of the vehicle, the orientation of the front seat 51 of the vehicle and the seat of the vehicle (ie at least the front seat 51 or the rear seat 52). On the other hand, the direction of the air conditioning air blown from the ceiling blower 20 can be changed according to at least one of the presence or absence of an occupant.

(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 second outlet 120 of each of the above-described embodiments. The vehicle air-conditioning system 1 of the present embodiment is configured such that the air-conditioning air blown from the first air outlet 100 instead of the second air outlet 120 reaches the suction port 200 of the ceiling blower 20.

As shown in FIG. 15, the plurality of first 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 first air outlet 100. For example, the wind direction adjusting plate 110 changes the wind direction of the air-conditioned air blown into the vehicle interior from the first air outlet 100 in the vehicle width direction with a plurality of horizontal louvers 110a for changing the wind direction of the air-conditioned air in the direction of gravity. It is provided with a plurality of vertical louvers 110b for the purpose. 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 air-conditioning air blown from the first outlet 100 reaches the suction port 200 of the ceiling blower 20.

By doing so, the conditioned air from the first outlet 100 can reach the suction port 200 of the ceiling blower 20 without providing the second 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 configuration common to the first embodiment can be obtained in the same manner as in the first embodiment.

Further, the first 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. There is. 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 conditioner air can be guided to the suction port 200 of the ceiling blower 20 by using the face air 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 seat of the vehicle 5 (specifically, the rear seat 52). It may also be equipped with an infrared sensor that detects at least one surface temperature of the body of the occupant seated in the seat. 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 and S206, 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, the temperature of the air-conditioning air reaching the suction port 200 of the ceiling blower 20 is increased in S114 and S214. 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.

Note that the present disclosure is not limited to the above-described embodiment, and can be changed as appropriate. 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, the number is 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 to a specific material, shape, positional relationship, etc. 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, the vehicle air-conditioning system controls 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. It is equipped with an air conditioning control unit that adjusts.

Further, according to the second viewpoint, 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 temperature state of the rear seat space of the vehicle as the surface temperature of the interior parts arranged in the rear seat space and the surface temperature of the occupant seated in the rear seat of the vehicle. Collect at least one surface temperature of.

In this way, as the temperature state of the rear seat space of the vehicle, 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 rear seat of the vehicle is set as the surface temperature of the rear seat of the vehicle. It can also be collected as the temperature state of the space.

Further, according to the fourth viewpoint, the air outlet is arranged in 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 viewpoint, the air outlet is provided exclusively for guiding the air conditioning air to the suction port of the ceiling blower. As described above, 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 viewpoint, the air outlet is a face air outlet that blows air-conditioned air toward the front seat space of the vehicle, and the face air outlet is a wind direction adjusting plate that changes the air-conditioning air blowing direction. Is provided. Then, the direction of the air-conditioning air blown out from the face air outlet can be directed to the suction port of the ceiling blower by the wind direction adjusting plate. 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 viewpoint, the suction port of the ceiling blower is arranged at the center in the vehicle width direction. 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 viewpoint, the state collecting unit determines the position of the front seat of the vehicle in the front-rear direction, the angle of the backrest of the front seat of the vehicle, the orientation of the front seat of the vehicle, and the seat of the vehicle as the seat state of the vehicle. Collect at least one of the presence or absence of a occupant.

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

Further, according to the ninth viewpoint, the air conditioning control unit is the position of the front seat of the vehicle in the front-rear direction, the angle of the backrest of the front seat of the vehicle, the orientation of the front seat of the vehicle, and the orientation of the front seat of the vehicle collected by the state collecting unit. 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 seat occupant.

Thus, the ceiling blower depends on at least one of the collected front-rear positions of the front seats of the vehicle, the angle of the backrest of the front seats of the vehicle, the orientation of the front seats of the vehicle and the presence or absence of occupants of the vehicle seats. The direction of the air conditioning air blown from 20 can be adjusted.

The processing of S102, S110, S202, and S210 corresponds to the state collecting unit, and the processing of S106, S114, S206, and S214 corresponds to the air conditioning control unit.

Claims (9)

1. 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).
2. 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.
3. The state collecting unit is 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 rear seat of the vehicle as the temperature state of the rear seat space of the vehicle. The vehicle air conditioning system according to claim 1 or 2, wherein the temperature is collected.
4. 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.
5. 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.
6. 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 can be directed to the suction port of the ceiling blower.
7. 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.
8. The state collecting unit determines the seating state of the vehicle, such as the position of the front seat of the vehicle in the front-rear direction, the angle of the backrest of the front seat of the vehicle, the orientation of the front 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, wherein at least one of the above is collected.
9. The air conditioning control unit is the position of the front seat of the vehicle in the front-rear direction, the angle of the backrest of the front seat of the vehicle, the orientation of the front seat of the vehicle, and the occupant of the seat of the vehicle, 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 at least one of the presence or absence.

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