WO2023021939A1 - Système de réglage de la sensation de chaleur - Google Patents

Système de réglage de la sensation de chaleur Download PDF

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Publication number
WO2023021939A1
WO2023021939A1 PCT/JP2022/028607 JP2022028607W WO2023021939A1 WO 2023021939 A1 WO2023021939 A1 WO 2023021939A1 JP 2022028607 W JP2022028607 W JP 2022028607W WO 2023021939 A1 WO2023021939 A1 WO 2023021939A1
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WIPO (PCT)
Prior art keywords
air
thermal sensation
rear seat
air conditioner
space
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Application number
PCT/JP2022/028607
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English (en)
Japanese (ja)
Inventor
康彦 新美
貴央 藤井
Original Assignee
株式会社デンソー
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Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to CN202280033220.7A priority Critical patent/CN117320903A/zh
Publication of WO2023021939A1 publication Critical patent/WO2023021939A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/34—Nozzles; Air-diffusers

Definitions

  • the present disclosure relates to a thermal sensation adjustment system.
  • a vehicle air-conditioning system including a front-seat air-conditioning unit for air-conditioning the front-seat side of the vehicle interior and a rear-seat-side air-conditioning unit for air-conditioning the rear-seat side of the vehicle interior (see, for example, Patent Document 1).
  • the front seat air conditioning unit mainly adjusts the temperature of the space on the front seat side in the passenger compartment
  • the rear seat side air conditioning unit mainly adjusts the temperature of the space on the rear seat side in the passenger compartment. This adjusts the thermal sensation of passengers seated in the front and rear seats.
  • a person has a thermal sensation distribution indicating a thermal sensation that is felt comfortable for each of a plurality of body parts.
  • thermal sensations that are comfortable for each of a plurality of body parts are different from each other.
  • the vehicle air conditioner described in Patent Document 1 adjusts the temperature of the space on the front seat side and the temperature of the space on the rear seat side without considering the heat sensation distribution, so as to adjust the passenger's feeling of heat. It is difficult to adjust the occupant's thermal sensation by giving different thermal sensations to different parts of the body. In this case, the occupant may feel discomfort in some parts of the body.
  • a temperature control device such as a radiant heater or an air scarf is added for each part whose heat sensation is desired to adjust the heat sensation of each of the plurality of body parts of the occupant.
  • the method of adding a temperature control device for each part whose thermal sensation is to be adjusted causes the need for an installation location and an increase in cost. This was found out after the inventors' intensive studies.
  • An object of the present disclosure is to provide a thermal sensation adjustment system capable of adjusting the thermal sensation of each part of the occupant's body while suppressing the number of installed temperature control devices.
  • a thermal sensation adjustment system that adjusts the thermal sensation of vehicle occupants a first air conditioner that blows air-conditioned air toward a first space that is a space to be air-conditioned; a second air conditioner that blows air-conditioned air toward a second space that is an air-conditioned space that is different from the first space; a thermal sensation detection unit that detects information about thermal sensation for each of a plurality of body parts of the occupant; A thermal sensation deviation that calculates the difference between the thermal sensation of each of the plurality of body parts of the occupant calculated based on the information about the thermal sensation detected by the thermal sensation detection unit and the target thermal sensation of each of the plurality of body parts of the occupant.
  • the first air conditioner controls the thermal sensation of the thermal sensation deviation part.
  • the conditioned air is blown toward the thermal sensation deviated part so that the temperature approaches the target thermal sensation.
  • the first air conditioner blows the conditioned air toward the thermal sensation different regions, thereby reducing the occupant's thermal sensation. can be adjusted. Therefore, it is not necessary to add a temperature control device for each part whose thermal sensation is desired to be adjusted. Therefore, it is possible to adjust the thermal sensation for each body part of the occupant while suppressing the number of installed temperature control devices.
  • FIG. 1 is a schematic diagram showing a vehicle equipped with a thermal sensation adjustment system according to the present embodiment
  • FIG. 1 is a schematic configuration diagram of a refrigeration cycle device and an air conditioning unit in this embodiment
  • FIG. It is a block diagram showing an electrical configuration of a thermal sensation adjustment system in the present embodiment.
  • FIG. 5 is a diagram showing the distribution of thermal sensation reference values in the summer default mode in this embodiment.
  • FIG. 5 is a diagram showing a distribution of thermal sensation reference values in the winter default mode according to the embodiment;
  • FIG. 4 is a diagram showing the distribution of thermal sensation reference values in a relax mode in this embodiment.
  • FIG. 5 is a diagram showing the distribution of thermal sensation reference values in focus mode in the present embodiment.
  • FIG. 5 is a diagram showing the distribution of thermal sensation reference values in focus mode in the present embodiment.
  • FIG. 2 is a block diagram showing an outline of the operation of the thermal sensation adjustment system according to the embodiment;
  • FIG. 5 is a diagram showing a provisional operation for explaining the operation of the thermal sensation adjustment system of this embodiment;
  • FIG. 4 is a diagram showing the target thermal sensation distribution and the direction of the conditioned air in each operation mode in the present embodiment. 5 is a flow chart showing control processing executed by a diverging portion temperature control unit in the present embodiment.
  • FIG. 4 is a diagram for explaining the operation of the thermal sensation adjustment system of this embodiment;
  • FIG. 4 is a diagram for explaining how the thermal sensation adjustment system according to the present embodiment adjusts the thermal sensation for each of a plurality of body parts of the occupant;
  • FIG. 11 is a schematic diagram showing a vehicle equipped with a thermal sensation adjustment system according to another embodiment;
  • FIG. 1 The thermal sensation adjustment system of this embodiment adjusts the thermal sensation of a front seat occupant 3 seated in the front seat 2 and a rear seat occupant 5 seated in the rear seat 4 in the vehicle interior of the vehicle 1 shown in FIG.
  • the thermal sensation adjustment system mainly adjusts the temperature of the space in which the front seat occupant 3 and the rear seat occupant 5 are present in the vehicle 1, and adjusts the temperature of the front seat occupant 3 and the rear seat occupant 5.
  • An air conditioning unit 10 is provided for adjusting the thermal sensation of the room.
  • the thermal sensation adjustment system controls the seat air conditioner 40 that adjusts the thermal sensation of the rear seat occupant 5, the IR sensor 70 that detects the thermal sensation of the rear seat occupant 5, and various components of the thermal sensation adjustment system. It is provided with an air conditioner ECU 80 which will be described later.
  • the space inside the vehicle is partitioned into a first space S1 and a second space S2 by a space partition wall 6 .
  • the first space S1 is a space to be air-conditioned in the passenger compartment, and is a space in which the front seats 2 are provided.
  • the second space S2 is a space to be air-conditioned in the passenger compartment, and is a space in which the rear seat 4 is provided.
  • a driver's seat and an assistant which are the front seats 2 are arranged side by side in the vehicle width direction.
  • two rear seats 4 are provided side by side in the vehicle width direction in the second space S2.
  • the front seat 2 is the driver's seat
  • the front seat 2 is replaced with a front passenger's seat
  • two rear seats 4 are provided and one rear seat 4 is provided will be described, but an example in which the rear seat 4 is replaced with the other rear seat 4 may also be used.
  • up, down, left, and right refer to up, down, left, and right in the vehicle 1 .
  • the air-conditioning unit 10 adjusts the temperature in the passenger compartment by blowing temperature-controlled air-conditioned air into the passenger compartment, and blows the air-conditioned air toward the front seat occupant 3 and the rear seat passenger 5 to cool the front seats. It has a function of adjusting the thermal sensation of each of the passenger 3 and the rear seat passenger 5 .
  • the air conditioning unit 10 includes a refrigeration cycle device 110, a first air conditioner 120, a second air conditioner 140, and the like, as shown in FIG.
  • the refrigeration cycle device 110 includes a compressor 111 that compresses refrigerant, a radiator 112 that dissipates heat from the high-temperature and high-pressure refrigerant discharged from the compressor 111, a first expansion valve 113 that decompresses the refrigerant discharged from the radiator 112, and It has a second expansion valve 114 .
  • Refrigerating cycle device 110 also has a first evaporator 115 that evaporates the refrigerant flowing out of first expansion valve 113 and a second evaporator 116 that evaporates the refrigerant flowing out of second expansion valve 114 .
  • the compressor 111 takes in the refrigerant in the refrigeration cycle device 110, compresses it, and discharges it.
  • the compressor 111 includes an electric motor that rotates a fixed displacement type compression mechanism having a fixed discharge displacement.
  • the compressor 111 has its rotation speed (that is, refrigerant discharge capacity) controlled by a control signal output from an air conditioner ECU 80, which will be described later.
  • a radiator 112 is connected to a discharge port of the compressor 111 .
  • the radiator 112 is a heat exchanger that exchanges heat between the high-pressure refrigerant discharged from the compressor 111 and the outside air to cool the refrigerant.
  • a first expansion valve 113 and a second expansion valve 114 are connected to the refrigerant outlet side of the radiator 112 .
  • the first expansion valve 113 and the second expansion valve 114 are decompressors that decompress and expand the refrigerant flowing out of the radiator 112 .
  • the operations of the first expansion valve 113 and the second expansion valve 114 are controlled by control signals output from the air conditioner ECU 80 .
  • a first evaporator 115 is connected to the refrigerant outlet side of the first expansion valve 113 .
  • a second evaporator 116 is connected to the refrigerant outlet side of the second expansion valve 114 .
  • the first evaporator 115 and the second evaporator 116 exchange heat between the refrigerant decompressed and expanded by the first expansion valve 113 and the second expansion valve 114 and the air flowing through the air conditioning unit 10, thereby evaporating the refrigerant and absorbing heat. It is a heat exchanger for heat absorption that exerts its action.
  • a refrigerant suction side of the compressor 111 is connected to the refrigerant outlet side of the first evaporator 115 and the refrigerant outlet side of the second evaporator 116 .
  • the first air conditioner 120 is an air conditioner that mainly air-conditions the first space S1 by blowing conditioned air toward the first space S1.
  • the first air conditioner 120 has a function of adjusting the thermal sensation of the rear seat occupant 5 present in the second space S2 when the second air conditioner 140 air-conditions the second space S2. have.
  • the first air conditioner 120 is arranged inside a dashboard (not shown).
  • the second air conditioner 140 is an air conditioner that air-conditions the second space S2 by blowing conditioned air toward the second space S2.
  • the second air conditioner 140 is arranged under the floor of the vehicle 1 behind the rear seat 4 .
  • the first air conditioner 120 for air-conditioning the first space S1 in which the front seats 2 are provided is configured to exhibit a larger air-conditioning capacity than the second air conditioner 140 for air-conditioning the second space S2 in which the rear seats 4 are provided.
  • the first air conditioner 120 is configured to blow out more conditioned air than the second air conditioner 140 blows out the conditioned air. This is because the first space S1 in which the front seats 2 are provided is easily affected by radiant heat from the windshield and is easily deprived of heat in the passenger compartment through the windshield. This is because an air conditioner that does this is required to have a relatively large air conditioning capacity.
  • the first air conditioner 120 includes a first air conditioning case 121, a first inside/outside air switching door 122, a first centrifugal fan 123, a first front seat heater core 124, a first front seat air mix door 125, and a first front seat face door 126. , a first front seat foot door 127 and a defroster door 128 .
  • the first air conditioner 120 also includes a first rear seat heater core 129 , a first rear seat air mix door 130 , a first rear seat face door 131 , and a first rear seat foot door 132 .
  • the first air conditioner 120 includes a first front seat face duct 133, a first front seat foot duct 134, a defroster duct 135, a first rear seat face duct 136, a first rear seat foot duct 137, and an air direction adjustment plate 138. I have.
  • the first air conditioner 120 also includes a first inside/outside air actuator 122a, a first fan actuator 123a, a first front seat air mix actuator 125a, and a first front seat mode actuator 126a.
  • the first air conditioner 120 includes a first rear seat air mix actuator 130a, a first rear seat mode actuator 131a, a wind direction actuator 138a, and the like.
  • the first air conditioning case 121 surrounds the first ventilation passage 121a through which the temperature-controlled air blown into the vehicle interior passes.
  • the first inside/outside air switching door 122 is a member that adjusts the opening area of the first inside air introduction port 121b and the opening area of the first outside air introduction port 121c.
  • the first inside/outside air switching door 122 rotates to close one of the first inside air introduction port 121b and the first outside air introduction port 121c as the other opening is opened.
  • the first inside/outside air switching door 122 can adjust the ratio of the inside air volume to the outside air volume introduced into the first ventilation passage 121a (that is, the inside/outside air ratio).
  • the inside air is the vehicle interior air
  • the outside air is the vehicle exterior air.
  • the first inside/outside air actuator 122a is an actuator that drives the first inside/outside air switching door 122, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the first centrifugal fan 123 rotates to introduce the inside air from the first inside air introduction port 121b into the first ventilation passage 121a, The air is sent to the downstream side of the first centrifugal fan 123 in the first air passage 121a. Further, when the first outside air introduction port 121c is open, the first centrifugal fan 123 rotates to introduce the outside air from the first outside air introduction port 121c into the first ventilation passage 121a, and the introduced air is , to the downstream side of the air flow of the first centrifugal fan 123 in the first ventilation passage 121a.
  • the first fan actuator 123a is an actuator that drives the first centrifugal fan 123, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the air flow downstream side of the first centrifugal fan 123 in the first ventilation passage 121a is partitioned into a front seat first ventilation passage 121aa and a rear seat first ventilation passage 121ab by a ventilation passage partition wall 121d.
  • a first evaporator 115 is arranged in the first air passage 121a downstream of the first centrifugal fan 123 in the air flow, straddling the front first air passage 121aa and the rear first air passage 121ab.
  • the first evaporator 115 cools the air sent from the first centrifugal fan 123.
  • the first evaporator 115 constitutes a refrigeration cycle together with the compressor 111, the radiator 112, the first expansion valve 113, and the like.
  • first evaporator 115 When the refrigerant flowing through the refrigeration cycle passes through first evaporator 115, the refrigerant and air exchange heat. This heat exchange evaporates the refrigerant and cools the air.
  • a first front seat heater core 124 is arranged downstream of the first evaporator 115 in the air flow in the front seat first air passage 121aa.
  • a first rear seat heater core 129 is arranged downstream of the first evaporator 115 in the air flow in the first rear ventilation passage 121ab.
  • the first front seat heater core 124 is arranged downstream of the first evaporator 115 in the air flow inside the front seat first air passage 121aa. Engine cooling water flows through the first front seat heater core 124 .
  • the first front seat heater core 124 heats the air by exchanging heat between the air that has passed through the first evaporator 115 and the engine cooling water.
  • First front seat heater core 124 may be replaced with an electric heater that heats the air that has passed through first evaporator 115 .
  • a first front seat air mix door 125 is provided upstream of the first front seat heater core 124 in the air flow.
  • the first front seat air mix door 125 is provided between the first evaporator 115 and the first front seat heater core 124 .
  • the first front seat air mix door 125 determines the amount of cold air that flows bypassing the first front heater core 124 after passing through the first evaporator 115, It is a door that adjusts the ratio with the air volume of warm air. That is, the first front seat air mix door 125 adjusts the air mix ratio.
  • the first front seat air mix actuator 125a is an actuator that drives the first front seat air mix door 125, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the first rear seat heater core 129 has the same basic structure as the first front seat heater core 124, so the description thereof will be omitted. Also, since the first rear seat air mix door 130 has the same basic structure as the first front seat air mix door 125, the description thereof will be omitted.
  • the first air-conditioning case 121 is provided on the downstream side of the front-seat first ventilation passage 121aa in the air flow direction for blowing conditioned air from the front-seat first ventilation passage 121aa to the first space S1.
  • a plurality of openings are formed.
  • the first air conditioning case 121 has a first front seat face opening portion 121e, a first front seat foot opening portion 121f, and a defroster opening portion 121g on the downstream side of the front seat first ventilation passage 121aa in the air flow direction. formed.
  • a first rear seat face for blowing conditioned air from the rear seat first ventilation passage 121ab to the second space S2 is provided on the downstream side of the rear seat first ventilation passage 121ab in the air flow direction.
  • An opening 121h and a first rear seat foot opening 121k are formed. From the air mix space where the air bypassing the first rear heater core 129 and the air passing through the first rear heater core 129 are mixed in the first rear air passage 121ab, the first rear seat face opening 121h And the conditioned air flows through the first rear seat foot opening 121k.
  • a front seat mode switching door for opening and closing each opening is provided in the first front seat face opening 121e, the first front seat foot opening 121f, and the defroster opening 121g.
  • the front seat mode switching door is composed of a first front seat face door 126 , a first front seat foot door 127 and a defroster door 128 .
  • the first front seat face door 126 opens and closes the first front seat face opening 121e.
  • the first front seat foot door 127 opens and closes the first front seat foot opening 121f.
  • the defroster door 128 opens and closes the defroster opening 121g.
  • the first front seat mode actuator 126a is an actuator that drives the first front seat face door 126, the first front seat foot door 127, and the defroster door 128, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the first front air blowing mode of the first air conditioner 120 is controlled by the first front seat mode actuator 126a.
  • the first front seat blow-out mode includes, for example, a first front seat face mode, a first front seat foot mode, and a defroster mode.
  • the first front seat face mode is a blowout mode in which the first front seat face door 126 is opened and the first front seat foot door 127 and the defroster door 128 are closed.
  • the first front seat foot mode is a blowing mode in which the first front seat foot door 127 is opened and the first front seat face door 126 and the defroster door 128 are closed.
  • the defroster mode is a blowout mode in which the defroster door 128 is opened and the first front seat face door 126 and the first front seat foot door 127 are closed.
  • One end of the first front seat face duct 133 is connected to the first front seat face opening 121e, and the other end of the first front seat face outlet 133a is located in front seat 2 on the dashboard as shown in FIG. It is open at a position facing the seat back.
  • the air After passing through the first front seat face opening 121e from the front seat first air passage 121aa, the air passes through the first front seat face duct 133 and then blows out from the first front seat face outlet 133a into the first space S1. be done.
  • the air blown out from the first front seat face air outlet 133a flows mainly toward the upper body of the front seat occupant 3 seated in the front seat 2 or around it.
  • first front seat foot duct 134 is connected to the first front seat foot opening 121f, and the other end of the first front seat foot outlet 134a is connected to the front seat 2 on the dashboard as shown in FIG.
  • the opening is opposite to the foot space in front of the seat cushion.
  • the air passes through the first front seat foot opening 121f from the front seat first air passage 121aa, the air passes through the first front seat foot duct 134 and then blows out from the first front seat foot outlet 134a into the first space S1. be done.
  • the air blown out from the first front seat foot outlet 134a flows toward the left and right lower legs of the front seat occupant 3 seated in the front seat 2 and the periphery thereof.
  • One end of the defroster duct 135 is connected to the defroster opening 121g, and the other end of the defroster outlet 135a is open facing the windshield on the dashboard as shown in FIG.
  • the air passes through the defroster opening 121g from the front seat first air passage 121aa, the air passes through the defroster duct 135 and is then blown out from the defroster outlet 135a into the first space S1.
  • the air blown out from the defroster outlet 135a flows toward the windshield or its surroundings.
  • the first rear seat face opening 121h and the first rear seat foot opening 121k are provided with rear seat mode switching doors for opening and closing the respective openings.
  • the rear seat mode switching door is composed of a first rear seat face door 131 and a first rear seat foot door 132 .
  • the first rear seat face door 131 opens and closes the first rear seat face opening 121h.
  • the first rear seat foot door 132 opens and closes the first rear seat foot opening 121k.
  • the first rear seat mode actuator 131a is an actuator that drives the first rear seat face door 131 and the first rear seat foot door 132, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the first rear air blowing mode of the first air conditioner 120 is controlled by the first rear seat mode actuator 131a.
  • the first rear seat blow-out mode includes, for example, a first rear seat face mode and a first rear seat foot mode.
  • the first rear seat face mode is a blowout mode in which the first rear seat face door 131 opens and the first rear seat foot door 132 closes.
  • the first rear seat foot mode is a blowing mode in which the first rear seat foot door 132 is opened and the first rear seat face door 131 is closed.
  • the first rear seat blowout mode can be switched independently from the first front seat blowout mode. That is, the first air conditioner 120 operates in a mode in which any one of the three first front seat blow-out modes and one of the two first rear seat blow-out modes are freely combined. can be done.
  • first rear seat face duct 136 is connected to the first rear seat face opening 121h, and the other end of the first rear seat face outlet 136a is connected to the space partition wall 6 as shown in FIG. It is opened at a position facing the seat back of the seat 4. - ⁇ After passing through the first rear seat face opening 121h from the first rear seat air passage 121ab, the air passes through the first rear seat face duct 136 and is then blown out from the first rear seat face outlet 136a into the second space S2. be done. The air blown out from the first rear seat face outlet 136a flows mainly toward the upper half of the body and thighs of the rear seat occupant 5 seated in the rear seat 4, or around them.
  • first rear seat foot duct 137 is connected to the first rear seat foot opening 121k, and the other end of the first rear seat foot outlet 137a is connected to the rear seat at the space partition wall 6 as shown in FIG. It is open facing the foot space in front of the seat cushion of the seat 4. - ⁇ After passing through the first rear seat foot opening 121k from the rear first air passage 121ab, the air passes through the first rear seat foot duct 137 and is then blown out from the first rear seat foot outlet 137a into the second space S2. be done. The air blown out from the first rear seat foot outlet 137a flows toward the left and right feet of the rear seat occupant 5 seated in the rear seat 4 and the periphery thereof.
  • the first front seat face outlet 133a, the first front seat foot outlet 134a, the defroster outlet 135a, the first rear seat face outlet 136a, and the first rear seat foot outlet 137a are arranged in different locations in the passenger compartment. open in position.
  • the first air conditioner 120 air-conditions the interior of the vehicle with conditioned air blown out from air outlets that open at different positions, and affects the thermal sensation of body parts of the front seat occupant 3 and the rear seat occupant 5. be able to. Specifically, the first air conditioner 120 air-conditions the first space S1 by using the air-conditioned air blown out from the first front seat face air outlet 133a. can have the greatest impact on the thermal sensation of In addition, the first air conditioner 120 air-conditions the first space S1 by the air-conditioned air blown out from the first front seat foot outlet 134a, and heats the left and right lower legs among the body parts of the front seat occupant 3. It can have the greatest impact on your senses.
  • the first air conditioner 120 air-conditions the second space S2 with the conditioned air blown out from the first rear seat face outlet 136a, and heats the upper body and thighs of the body parts of the rear seat occupant 5. It can have the greatest impact on your senses.
  • the first air conditioner 120 air-conditions the second space S2 with the air-conditioned air blown out from the first rear seat foot outlet 137a, and also heats the left and right feet of the rear seat occupant 5. can have the greatest impact on
  • the first air conditioner 120 has a greater air conditioning capacity for air conditioning the first space S1 than for air conditioning the second space S2.
  • the first air conditioner 120 is configured such that the amount of conditioned air blown into the first space S1 is greater than the amount of conditioned air blown into the second space S2. Therefore, the first air conditioner 120 mainly air-conditions the first space S1 in the vehicle interior. Then, the first air conditioner 120 assists the air conditioning of the second air conditioner 140 when the second air conditioner 140 air-conditions the second space S2.
  • a wind direction adjusting plate 138 is attached to the first rear seat face outlet 136a.
  • the air direction adjusting plate 138 is an air direction adjusting portion that adjusts the direction of the conditioned air blown out from the first rear seat face outlet 136a into the second space S2.
  • the airflow direction adjusting plate 138 adjusts the direction of the flow of the conditioned air blown out from the first rear seat face air outlet 136a in the left-right direction of the vehicle 1 (that is, in the vehicle width direction) and in the vertical direction of the vehicle 1. change direction.
  • the wind direction adjusting plate 138 can change the part of the body of the rear seat occupant 5 that is affected by the conditioned air blown out by the first air conditioner 120 .
  • the wind direction adjusting plate 138 of this embodiment functions as a wind direction adjusting mechanism.
  • the wind direction actuator 138a is an actuator that drives the wind direction adjusting plate 138, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the second air conditioner 140 includes a second air conditioning case 141, a second inside/outside air switching door 142, a second centrifugal fan 143, a second heater core 144, a second air mix door 145, a second rear face door 146, a second rear A seat foot door 147 is provided.
  • the second air conditioner 140 also includes a second rear seat face duct 148 and a second rear seat foot duct 149 .
  • the second air conditioner 140 also includes a second inside/outside air actuator 142a, a second fan actuator 143a, a second rear seat air mix actuator 145a, a second rear seat mode actuator 146a, and the like.
  • the second air conditioning case 141 surrounds the second ventilation passage 141a through which the temperature-controlled air blown into the vehicle interior passes.
  • the second air conditioning case 141 has almost the same basic structure as the first air conditioning case 121 .
  • the second air conditioning case 141 differs from the first air conditioning case 121 in that it does not have a member corresponding to the ventilation path partition wall 121d in the first air conditioning case 121, and the opening for blowing the conditioned air into the vehicle compartment is the first air conditioning case. It is less than the air conditioning case 121 .
  • the second air conditioning case 141 has a second inside air introduction port 141b and a second outside air introduction port 141c on the upstream side in the air flow direction.
  • the second air-conditioning case 141 includes a second rear seat face opening 141h and a second rear face opening 141h for blowing air-conditioned air from the second air passage 141a to the second space S2 on the downstream side of the second air passage 141a in the air flow direction.
  • 2 has a rear seat foot opening 141k.
  • the second inside/outside air switching door 142 adjusts the ratio between the inside air volume and the outside air volume introduced into the second ventilation passage 141a.
  • the second inside/outside air actuator 142a is an actuator that drives the second inside/outside air switching door 142, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the second rear seat face opening 141h and the second rear seat foot opening 141k are provided with rear seat mode switching doors for opening and closing the respective openings.
  • the rear seat mode switching door is composed of a second rear seat face door 146 and a second rear seat foot door 147 .
  • the second rear seat face door 146 opens and closes the second rear seat face opening 141h.
  • the second rear seat foot door 147 opens and closes the second rear seat foot opening 141k.
  • the second rear seat mode actuator 146a is an actuator that drives the second rear seat face door 146 and the second rear seat foot door 147, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the second rear air blowing mode of the second air conditioner 140 is controlled by the second rear seat mode actuator 146a.
  • the second rear seat blow-out mode includes, for example, a second rear seat face mode and a second rear seat foot mode.
  • the second rear seat face mode is a blowout mode in which the second rear seat face door 146 opens and the second rear seat foot door 147 closes.
  • the second rear seat foot mode is a blowing mode in which the second rear seat foot door 147 is opened and the second rear seat face door 146 is closed.
  • the second rear seat blowout mode can switch the blowout mode independently of the first front seat blowout mode and the first rear seat blowout mode.
  • the second air conditioning case 141 accommodates a second centrifugal fan 143 , a second heater core 144 and a second air mix door 145 .
  • the second centrifugal fan 143 has the same basic structure as the first centrifugal fan 123 .
  • the second heater core 144 has the same basic structure as the first front seat heater core 124 .
  • the second air mix door 145 has the same basic structure as the first front seat air mix door 125 . Therefore, detailed description of each of the second centrifugal fan 143, the second heater core 144, and the second air mix door 145 is omitted.
  • the second fan actuator 143a is an actuator that drives the second centrifugal fan 143, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the second rear seat air mix actuator 145a is an actuator that drives the second air mix door 145, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the second ventilation passage 141a passes through the second rear seat face opening 141h and the second rear seat foot opening from the air mix space where the air bypassing the second heater core 144 and the air passing through the second heater core 144 are mixed.
  • the air conditioning wind flows at 141k.
  • One end of the second rear seat face duct 148 is connected to the second rear seat face opening 141h, and the second rear seat face outlet 148a at the other end forms a second space S2 as shown in FIG.
  • Two openings are provided in the ceiling facing the rear seat 4 .
  • the air passing through the second rear seat face opening 141h from the second ventilation passage 141a passes through the second rear seat face duct 148 and is then blown out from the second rear seat face outlet 148a into the second space S2. .
  • the air blown out from the second rear seat face air outlet 148a flows mainly toward the upper half of the body of the rear seat occupant 5 seated in the rear seat 4 or around it.
  • One end of the second rear seat foot duct 149 is connected to the second rear seat foot opening 141k, and the other end of the second rear seat foot outlet 149a forms a second space S2 as shown in FIG. It is opened on the floor facing the foot space below the seat cushion of the rear seat 4 .
  • the air passing through the second rear seat foot opening 141k from the second ventilation path 141a passes through the second rear seat foot duct 149, and then is blown out from the second rear seat foot outlet 149a into the second space S2. .
  • the air blown out from the second rear seat foot outlet 149a flows toward the left and right feet of the rear seat occupant 5 seated in the rear seat 4 and the surroundings thereof.
  • the seat air conditioner 40 is attached to the rear seat 4 and is a temperature control device that cools and heats a plurality of body parts of the rear seat occupant 5 seated in the rear seat 4 to adjust the thermal sensation of the rear seat occupant 5. be.
  • the seat air conditioner 40 includes a back ventilation path 41, a back ventilation opening 41a, a back fan 42, a back fan actuator 42a, a seat ventilation path 43, a seat ventilation opening 43a, a seat fan 44, It has a seat fan actuator 44 a , a neck heater 45 , a back heater 46 and a thigh heater 47 .
  • the back ventilation passage 41 is an air passage provided inside the seat back of the rear seat 4 .
  • One side of the back ventilation passage 41 is connected to the back ventilation port 41 a , and the other side communicates with the space on the back side of the seat back of the rear seat 4 .
  • a back fan 42 is accommodated in the back ventilation passage 41 .
  • the rear air vent 41a is provided on the front side of the seat back of the rear seat 4 at substantially the center in the vertical direction of the seat back. In other words, the rear air vent 41a is provided at a position on the seatback that is assumed to face the back of the rear seat occupant 5 when the rear seat occupant 5 is seated on the rear seat 4 .
  • the back fan 42 is an electric fan for generating an airflow in the back ventilation path 41 and blowing out the air sucked from the back ventilation port 41a to the space on the back side of the seat back of the rear seat 4.
  • the back fan actuator 42a is an actuator that drives the back fan 42, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the seat ventilation path 43 is an air flow path provided inside the seat cushion of the rear seat 4 .
  • One side of the seat ventilation path 43 is connected to the seat surface ventilation port 43 a , and the other side thereof communicates with the space on the lower surface side of the seat cushion of the rear seat 4 .
  • a seat fan 44 is accommodated in the seat ventilation path 43 .
  • the seat surface ventilation opening 43a is provided on the upper surface side of the seat cushion at approximately the center of the seat cushion of the rear seat 4 in the front-rear direction. In other words, the seat surface ventilation opening 43a is located at a position assumed to face the peripheries of the rear seat occupant 5's buttocks and left and right thighs on the seat cushion when the rear seat occupant 5 is seated in the rear seat 4. be provided.
  • the seat fan 44 is an electric fan for generating an air current in the seat ventilation path 43 and for blowing out the air sucked from the seat surface ventilation opening 43a to the space on the lower surface side of the seat cushion of the rear seat 4.
  • the seat fan actuator 44a is an actuator that drives the seat fan 44, and is controlled by the air conditioner ECU 80 as shown in FIG.
  • the neck heater 45 is an electric heater provided on the front side of the seat back at the top in the vertical direction of the seat back of the rear seat 4 .
  • the back heater 46 is an electric heater provided on the front side of the seat back in the approximate center of the seat back of the rear seat 4 in the vertical direction.
  • the back heater 46 is provided around the back ventilation port 41a.
  • the thigh heater 47 is an electric heater provided on the upper surface side of the seat cushion of the rear seat 4 .
  • the thigh heater 47 is provided around the seat vent 43a.
  • the amount of heat generated by each of the neck heater 45, the back heater 46, and the thigh heater 47 is controlled by a control signal output from the air conditioner ECU80.
  • the seat air conditioner 40 sucks air around the back of the rear seat occupant 5 seated in the rear seat 4 through the rear air vent 41a. As a result, among the plurality of body parts of the rear seat occupant 5, the back is mainly cooled.
  • the seat air conditioner 40 draws in air around the buttocks and thighs of the rear seat occupant 5 sitting in the rear seat 4 through the seat ventilation opening 43a.
  • the seat air conditioner 40 draws in air around the buttocks and thighs of the rear seat occupant 5 sitting in the rear seat 4 through the seat ventilation opening 43a.
  • the seat air conditioner 40 can change the thermal effect on the rear seat occupant 5 according to the number of rotations of the back fan 42 and the seat fan 44 . Specifically, the seat air conditioner 40 can cool the back of the rear seat occupant 5 more as the number of rotations of the back fan 42 is increased. In addition, the seat air conditioner 40 can cool the buttocks and thighs of the rear seat occupant 5 more as the number of rotations of the seat fan 44 is increased.
  • the neck heater 45 when the neck heater 45 starts operating, the neck heater 45 generates heat. As a result, among the plurality of body parts of the rear seat occupant 5, mainly the neck is warmed. Further, in the seat air conditioner 40, when the back heater 46 starts operating, the back heater 46 generates heat. As a result, among the plurality of body parts of the rear seat occupant 5, mainly the back is warmed. Further, in the seat air conditioner 40, when the thigh heater 47 starts operating, the thigh heater 47 generates heat. As a result, among the plurality of body parts of the rear seat occupant 5, mainly the buttocks and thighs are heated.
  • the seat air conditioner 40 can change the effect of thermal sensation on the rear seat occupant 5 according to the amount of heat generated by each of the neck heater 45 , back heater 46 and thigh heater 47 . Specifically, the seat air conditioner 40 can provide more warmth to the neck of the rear seat occupant 5 as the amount of heat generated by the neck heater 45 is increased. In addition, the seat air conditioner 40 can warm the back of the rear seat occupant 5 more as the amount of heat generated by the back heater 46 is increased. The seat air conditioner 40 can provide more warmth to the buttocks and thighs of the rear seat occupant 5 as the amount of heat generated by the thigh heaters 47 increases.
  • the seat air conditioner 40 includes a back ventilation path 41 , a back fan 42 , a seat ventilation path 43 , a seat fan 44 , a neck heater 45 , a back heater 46 , and a thigh heater 47 .
  • the IR sensor 70 acquires infrared rays emitted from within a predetermined imaging range, and based on the acquired infrared rays, generates and outputs an image representing the surface temperature of each position within the imaging range as a pixel value. sensor.
  • the IR sensor 70 is composed of an optical sensor that emits and receives infrared rays, a microcomputer that includes a storage unit such as a CPU, a ROM, and a RAM, and peripheral circuits thereof.
  • the imaging range of the IR sensor 70 includes the rear seat occupant 5 and the surroundings of the rear seat occupant 5 in the vehicle interior.
  • the IR sensor 70 detects information about the thermal sensation of the rear seat occupant 5 based on the image data generated by photographing the rear seat occupant 5 and the surroundings of the rear seat occupant 5 .
  • the ROM and RAM of the IR sensor 70 are composed of non-transitional material storage media.
  • the IR sensor 70 is connected to the air conditioner ECU 80 and is configured to be able to acquire information regarding the operation of the air conditioning unit 10 from the air conditioner ECU 80 .
  • the information about the operation of the air conditioning unit 10 includes, for example, the rotation speed of the compressor 111, the rotation speed of the first centrifugal fan 123, the rotation speed of the second centrifugal fan 143, the target blowout temperature of the conditioned air blown out by the air conditioning unit 10, and the like. is included.
  • the IR sensor 70 performs various calculations and processes based on the temperature information contained in the generated image and the control map stored in the storage unit, thereby estimating the thermal sensation of each of a plurality of body parts of the rear seat occupant 5.
  • the control map is determined in advance based on the predicted value of the thermal sensation for each body part of the rear seat occupant 5, the temperature information included in the image to be generated, and the information on the operation of the air conditioning unit 10. Experiments are performed in advance. It can be obtained from the results, etc.
  • the IR sensor 70 detects the ambient temperature of the rear seat occupant 5 and detects the thermal sensation of each of the plurality of body parts of the rear seat occupant 5 estimated using the detected ambient temperature. It is output to the air conditioner ECU 80 as information on the current thermal sensation.
  • the IR sensor 70 of this embodiment functions as a thermal sensation detection unit.
  • the air conditioner ECU 80 is composed of a microcomputer including a CPU, ROM, RAM, etc. and its peripheral circuits. The air conditioner ECU 80 performs various calculations and processes based on the air conditioning control program stored in the ROM, and controls the operation of various controlled devices connected to its output side. Note that the ROM and RAM of the air conditioner ECU 80 are composed of non-transitional material storage media.
  • the thermal sensation adjustment system includes a first inside air temperature sensor 71, a second inside air temperature sensor 72, an outside air temperature sensor 73, a solar radiation sensor 74, a first setting section 75, and a second setting section 76.
  • the first inside air temperature sensor 71 outputs a detection signal to the air conditioner ECU 80 according to the temperature of the air in the first space S1 of the vehicle interior (hereinafter referred to as first inside air temperature FrTr).
  • the second inside air temperature sensor 72 outputs a detection signal to the air conditioner ECU 80 according to the temperature of the air in the second space S2 of the vehicle interior (hereinafter referred to as second inside air temperature RrTr).
  • the outside air temperature sensor 73 outputs a detection signal to the air conditioner ECU 80 according to the temperature of the air outside the vehicle compartment (hereinafter referred to as outside air temperature Tam).
  • the solar radiation sensor 74 outputs a detection signal to the air conditioner ECU 80 according to the amount of solar radiation Ts into the vehicle interior.
  • the first setting unit 75 is a device that receives input operations from the front seat occupant 3 .
  • the first setting unit 75 is arranged near the instrument panel (not shown) in the first space S1 and has various operation switches that can be individually operated by the front seat occupants 3 .
  • the first setting unit 75 outputs information input by the operation of the front seat occupant 3 to the air conditioner ECU 80 .
  • Various operation switches provided in the first setting section 75 include, for example, an air conditioning power switch for setting the operation start or operation stop of the air conditioning unit 10, and an auto switch for setting or canceling the automatic control operation of the air conditioning unit 10. Further, as various operation switches, a temperature setting switch for individually setting the first target temperature FrTset of the first space S1 and the second target temperature RrTset of the second space S2 in the passenger compartment, and the operation mode of the air conditioning unit 10 are selected. There is a mode selection switch, etc.
  • the second setting unit 76 is a device that receives input operations from the rear seat occupant 5 .
  • the second setting unit 76 is arranged on a center console (not shown) provided between the two rear seats 4 in the second space S2, and various types of controls that can be individually operated by the rear seat occupants 5 are provided. It has an operation switch.
  • the second setting unit 76 outputs information input by the rear seat occupant 5 to the air conditioner ECU 80 .
  • Various operation switches provided in the second setting section 76 include, for example, an air conditioning power switch for setting the operation start or operation stop of the air conditioning unit 10 and an auto switch for setting or canceling the automatic control operation of the air conditioning unit 10 . Further, the various operation switches include a temperature setting switch for setting the second target temperature RrTset of the second space S2 in the vehicle interior, and a mode selection switch for selecting the operation mode of the air conditioning unit 10 .
  • various operation switches include a correction switch for setting the target thermal sensation of the rear seat occupant 5 and a seat air conditioning power switch for setting the operation start or stop of the seat air conditioner 40 .
  • the various operation switches include an auto switch for setting or canceling the automatic control operation of the seat air conditioner 40, a temperature setting switch for setting the seat target temperature STset of the rear seat 4, and the like.
  • the operations for starting or stopping the operation of the air conditioning unit 10, setting or canceling the automatic control operation, selecting the operation mode, and setting the second target temperature RrTset can be performed by either the first setting section 75 or the second setting section 76. is possible.
  • the setting operation of the first target temperature FrTset of the first space S1 cannot be performed by the second setting section 76, and can be performed only by the first setting section 75.
  • FIG. The first setting unit 75 is used to set the target thermal sensation of the rear seat occupant 5, start or stop the operation of the seat air conditioner 40, set or cancel the automatic control operation, and set the seat target temperature STset. can be performed only by the second setting unit 76 .
  • the air conditioner ECU 80 can switch the operation of the thermal sensation adjustment system to different operation modes based on the operation of the mode selection switch of the first setting section 75 and the operation of the mode selection switch of the second setting section 76 . Specifically, the air conditioner ECU 80 can switch the operation mode to any one of the default mode, the relax mode, and the focus mode based on the operation of the first setting unit 75 and the second setting unit 76 . Further, when the default mode is set based on the operation of the first setting unit 75 and the second setting unit 76, the air conditioner ECU 80 sets the operation mode to either the summer default mode or the winter default mode based on the external environment. set.
  • the summer default mode is a mode that is mainly used in summer when the temperature is high, and is a mode that cools the vehicle interior.
  • the thermal sensation adjustment system cools the entire second space S2 and cools the body part of the rear seat occupant 5 so that the thermal sensation of the rear seat occupant 5 approaches the target thermal sensation. Cooling.
  • the winter default mode is a mode that is mainly used in winter when the temperature is low, and it is a mode that heats the vehicle interior.
  • the thermal sensation adjustment system heats the entire second space S2 and adjusts the body parts of the rear seat occupant 5 so that the thermal sensation of the rear seat occupant 5 approaches the target thermal sensation. heat up.
  • the relax mode is a mode that calms the mind of the rear seat occupant 5.
  • the thermal sensation adjustment system adjusts the air conditioning of the entire second space S2 so that the thermal sensation of the rear seat occupant 5 approaches the target thermal sensation in order to bring the rear seat occupant 5 into a relaxed state. and adjust the temperature of the rear seat occupant 5's body part.
  • the focus mode is a mode that activates the spirit of the rear seat occupant 5.
  • the thermal sensation adjustment system controls the air conditioning of the entire second space S2 so that the thermal sensation of the rear seat occupant 5 approaches the target thermal sensation. and adjust the temperature of the rear seat occupant 5's body part.
  • the air conditioner ECU 80 adjusts the thermal sensation adjustment system so that the thermal sensation of the rear seat occupant 5 approaches the target thermal sensation when the operation mode is set to one of the summer default mode, winter default mode, relax mode, and focus mode. Controls various components.
  • the target thermal sensation is data representing target values of a plurality of thermal sensations for a plurality of body parts of the rear seat occupant 5 .
  • Each operation mode has a different reference temperature distribution for each operation mode shown in FIGS.
  • the reference temperature distribution is obtained when the rear seat occupant 5 is vertically divided into a head area A1, a chest area A2, a thigh area A3, and a leg area A4 as shown in FIG. It is set in the air conditioner ECU 80 in advance for each area.
  • the head area A1 is a part including the head and neck among the plurality of body parts of the rear seat occupant 5 .
  • the chest area A2 is a part including the chest and torso among the plurality of body parts of the rear seat occupant 5 .
  • the thigh area A3 is a part including the thighs among the plurality of body parts of the rear seat occupant 5 .
  • the foot area A4 is a part including the lower leg and the tip of the foot among the plurality of body parts of the rear seat occupant 5 .
  • the value of thermal sensation that feels very cold is “-5", the thermal sensation that feels cold is “-4”, and the thermal sensation that feels slightly cold is “-3”.
  • the value of thermal sensation that feels cool is “-2”, and the value of thermal sensation that feels slightly cool is “-1”.
  • the value of thermal sensation that feels very hot is "+5"
  • the value of thermal sensation that feels hot is "+4"
  • the value of thermal sensation that feels hot is "+3”
  • the value of thermal sensation that feels warm is "+3”.
  • the value of the thermal sensation that feels warm is "+2”
  • the value of the thermal sensation that feels slightly warm is “+1”.
  • a thermal sensation value at which a person does not feel a warm thermal sensation or a cool thermal sensation is assumed to be "0".
  • the thermal sensation distribution which is the reference for each driving mode, is a thermal sensation value that the rear seat occupant 5 is likely to feel comfortable in each of the head area A1, chest area A2, thigh area A3, and leg area A4. It is set to a value within the range of "+2".
  • the thermal sensation reference value at which the rear seat occupant 5 generally feels comfortable is also referred to as the thermal sensation reference value.
  • the range indicating the thermal sensation reference value in each area is hatched with a dot pattern.
  • the distribution of thermal sensation reference values for each driving mode is created as a thermal sensation distribution that is assumed to be comfortable for the rear seat occupant 5 in that driving mode.
  • the distribution of these thermal sensation reference values is experimentally determined in advance so as to satisfy an unspecified number of occupants on average. If the distribution of the thermal sensation reference value for a certain mode is realized by creating in this way, each body part corresponding to each area of the rear seat occupant 5 can easily feel comfortable.
  • the thermal sensation reference value of the summer default mode is such that the rear seat occupant 5 can obtain a cool thermal sensation in all of the head area A1, chest area A2, thigh area A3, and leg area A4. is set to Also, the thermal sensation reference value for the summer default mode is set to a range of "-2 to -1" where the head area A1 is cooler than the other areas, and the other areas are the chest area A2, thigh area A3, and foot area A4. is set in a range of "-1 to 0" larger than the value of the head area A1.
  • the reason why the distribution of the thermal sensation reference values is set in this way is to improve the comfort of the rear seat occupant 5 by performing so-called head-cold-foot-heat, i.e., keeping the head cool and the feet warm. be.
  • head-cold-foot-heat i.e., keeping the head cool and the feet warm. be.
  • relatively cool heat is applied to the relatively upper side of the plurality of body parts of the rear seat occupant 5. It is also because it is necessary to give a feeling.
  • the thermal sensation reference value for the summer default mode set in this way is generally a thermal sensation distribution that people feel comfortable when cooling the vehicle interior.
  • the thermal sensation reference value for the winter default mode is set so that the rear seat occupant 5 can feel a warm thermal sensation in all of the head area A1, chest area A2, thigh area A3, and leg area A4. be.
  • the thermal sensation reference value in the winter default mode is set within the range of "0 to +1" for the head area A1, the chest area A2, and the thigh area A3.
  • the thermal sensation reference value for the winter default mode is set within the range of "+1 to +2" for the foot area A4.
  • the thermal sensation reference value for the winter default mode is set so that the foot area A4 can provide a warmer thermal sensation than other parts.
  • the reason why the distribution of the thermal sensation reference value is set in this way is that, as in the summer default mode, the head is cooled and the feet are warmed, that is, the so-called head-cold-feet-heat effect is performed, thereby making the rear seat occupant 5 comfortable. This is to improve the properties. Also, even when the temperature around the head of the rear seat occupant 5 rises because the temperature of the air on the relatively upper side in the passenger compartment rises due to heating, the head of the rear seat occupant 5 is prevented from feeling uncomfortable. It's also for.
  • the winter default mode thermal sensation reference value set in this way is generally a thermal sensation distribution that people feel comfortable when heating the vehicle interior.
  • the thermal sensation reference value in the relax mode is set so that the rear seat occupant 5 can obtain a warm thermal sensation in all of the head area A1, chest area A2, thigh area A3, and leg area A4. . Also, the thermal sensation reference value in the relax mode is the same for all of the head area A1, chest area A2, thigh area A3, and foot area A4, and is set within the range of "+1 to +2.”
  • the thermal sensation reference value in the focus mode is such that the rear seat occupant 5 can obtain a cool thermal sensation in the head area A1 and the chest area A2, and the rear seat occupant 5 can obtain a cool thermal sensation in the thigh area A3 and the leg area A4. is set to give a warm feeling of heat. Also, the thermal sensation reference value in the focus mode is set so that the thermal sensation value increases in the order of the head area A1, the chest area A2, the thigh area A3, and the foot area A4.
  • the thermal sensation reference value in the focus mode is set to a range of "-2 to -1" for the head area A1, set to a range of "-1 to 0" for the chest area A2, and set to a range of "-1 to 0" for the thigh area A3. It is set in the range of "0 to +1", and the foot area A4 is set in the range of "+1 to +2".
  • the thermal sensation reference value for each driving mode is individually set to a value that makes it easy to feel comfortable in the areas corresponding to the head area A1, chest area A2, thigh area A3, and leg area A4.
  • the thermal sensation that the rear seat occupant 5 is likely to feel comfortable in each of the head area A1, the chest area A2, the thigh area A3, and the leg area A4 changes according to the external environment and the state of mind that the rear seat occupant 5 desires.
  • the thermal sensation reference value for each driving mode in this embodiment corresponds to the head area A1, chest area A2, thigh area A3, and foot area A4, which change according to the external environment and the state of mind desired by the rear seat occupant 5. It is individually set to the value of the thermal sensation that the part to be treated feels comfortable.
  • the target thermal sensation value in each operation mode can be corrected from the thermal sensation reference value to a desired value by input operation of the correction switch.
  • the target thermal sensation value of one or more areas selected from the head area A1, chest area A2, thigh area A3, and foot area A4 in each driving mode is It is individually corrected to the minus side or the plus side from the thermal sensation reference value.
  • the air conditioning unit 10 and the seat air conditioner 40 are configured to be able to change the thermal sensation for each body part of the rear seat occupant 5 in each operation mode.
  • the outputs of the first air conditioner 120 , the second air conditioner 140 and the seat air conditioner 40 of the air conditioning unit 10 can be independently adjusted by the air conditioner ECU 80 .
  • the air conditioning unit 10 can adjust the temperature and air volume of the conditioned air that the first air conditioner 120 and the second air conditioner 140 each send into the vehicle interior independently of the operation of the seat air conditioner 40 by the air conditioner ECU 80.
  • the air conditioner ECU 80 can switch the outlets for blowing the conditioned air by changing the blowing modes of the first air conditioner 120 and the second air conditioner 140 .
  • the air conditioner ECU 80 can adjust the direction of the air blown out from the first rear seat face outlet 136a by controlling the direction of the wind direction adjusting plate 138. Further, the seat air conditioner 40 can adjust the amount of heat generated by each of the neck heater 45, the back heater 46, and the thigh heater 47 by the air conditioner ECU 80 independently of the operation of the first air conditioner 120 and the second air conditioner 140. be. The seat air conditioner 40 can adjust the rotational speeds of the back fan 42 and the seat fan 44 independently of the operation of the first air conditioner 120 and the second air conditioner 140 by the air conditioner ECU 80 .
  • the thermal sensation of the rear seat occupant 5 can be adjusted for each body part so that the thermal sensation of a plurality of body parts of the rear seat occupant 5 approaches the target thermal sensation.
  • the air conditioner ECU 80 has a first air conditioning control section 81 , a second air conditioning control section 82 , a target setting section 83 and a deviation portion temperature control section 84 .
  • the air conditioner ECU 80 executes the air conditioning control program to control the first air conditioning control section 81, the second air conditioning control section 82, the target setting section 83, It functions as a deviation part temperature control part 84 .
  • the air conditioner ECU 80 may include a plurality of circuit modules corresponding to the first air conditioning control section 81, the second air conditioning control section 82, the target setting section 83, and the deviation portion temperature control section 84 one-to-one.
  • the functions of the first air conditioning control unit 81, the second air conditioning control unit 82, the target setting unit 83, and the deviation part temperature control unit 84 will be individually described below. First, the first air conditioning control section 81 will be described.
  • the first air-conditioning control unit 81 adjusts the conditioned air blown by the first air conditioner 120 toward the first space S1 when the thermal sensation adjustment system adjusts the thermal sensation of the front seat occupant 3 present in the first space S1. It calculates the target temperature.
  • the first air-conditioning control unit 81 calculates the first target temperature FrTAO of the conditioned air that the first air conditioner 120 blows into the first space S1 based on the detection signals of various sensors input to the air-conditioner ECU 80 as follows. Calculated by
  • FrTAO Kset ⁇ FrTset ⁇ Kr ⁇ FrTr ⁇ Kam ⁇ Tam ⁇ Ks ⁇ Ts+C
  • FrTset is the target temperature of the first space S1 set by the temperature setting switch.
  • FrTr is the temperature of the first space S1 detected by the first inside air temperature sensor 71; Tam is the temperature outside the passenger compartment detected by the outside air temperature sensor 73 .
  • Ts is the amount of solar radiation detected by the solar radiation sensor 74 .
  • Kset, Kr, Kam, and Ks are control gains, and C is a correction constant.
  • the air conditioner ECU 80 determines the first target outlet temperature FrTAO based on the first target temperature FrTset and information on the environment inside and outside the vehicle such as the first inside temperature FrTr, the outside temperature Tam, and the amount of solar radiation Ts. Then, as shown in FIG. 9, the air conditioner ECU 80 controls the operation of various components of the first air conditioner 120 based on the first target outlet temperature FrTAO.
  • the second air-conditioning control unit 82 adjusts the air-conditioning air blown by the second air conditioner 140 toward the second space S2 when the thermal sensation adjustment system adjusts the thermal sensation of the rear seat occupant 5 present in the second space S2. It calculates the target temperature.
  • the thermal sensation adjustment system of the present embodiment is configured to be able to adjust the thermal sensation of the rear seat occupant 5 so that the thermal sensation of a plurality of body parts of the rear seat occupant 5 approaches the target thermal sensation. ing.
  • the thermal sensation adjustment system of the present embodiment adjusts the thermal sensation of the rear seat occupant 5 in consideration of the thermal sensation distribution of the rear seat occupant 5 when adjusting the thermal sensation of the rear seat occupant 5. can be done.
  • the thermal sensation adjustment system adjusts the thermal sensation distribution of the rear seat occupant 5 without considering the thermal sensation distribution of the rear seat occupant 5.
  • the second air conditioning control unit 82 sets the second target temperature RrTAO of the conditioned air that the thermal sensation adjustment system blows into the second space S2 as follows, based on the detection signals of various sensors input to the air conditioner ECU 80. Suppose that it is calculated by Equation 2.
  • the second target blowout temperature RrTAO calculated here is the target temperature of the conditioned air blown into the second space S2 by the first air conditioner 120 and the second air conditioner 140 .
  • RrTAO Kset ⁇ RrTset ⁇ Kr ⁇ RrTr ⁇ Kam ⁇ Tam ⁇ Ks ⁇ Ts+C
  • RrTset is the target temperature of the second space S2 set by the temperature setting switch.
  • RrTr is the temperature of the second space S2 detected by the second inside air temperature sensor 72; Tam is the temperature outside the passenger compartment detected by the outside air temperature sensor 73 .
  • Ts is the amount of solar radiation detected by the solar radiation sensor 74 .
  • Kset, Kr, Kam, and Ks are control gains, and C is a correction constant.
  • the air conditioner ECU 80 determines the second target outlet temperature RrTAO based on the second target temperature RrTset and information on the environment inside and outside the vehicle such as the second inside temperature RrTr, the outside temperature Tam, and the amount of solar radiation Ts. Then, it is assumed that the air conditioner ECU 80 controls the operation of various components of the first air conditioner 120 and the second air conditioner 140 based on the second target outlet temperature RrTAO, as shown in FIG.
  • the air conditioner ECU 80 determines the first front blowout mode of the first air conditioner 120 based on the first target blowout temperature FrTAO calculated by the first air conditioning control unit 81 . Then, the air conditioner ECU 80 controls the operation of the first front seat mode actuator 126a so that the conditioned air is blown from the outlet corresponding to the determined first front seat blow mode.
  • the air conditioner ECU 80 determines the first rear seat blowout mode of the first air conditioner 120 based on the second target blowout temperature RrTAO calculated by the second air conditioning control unit 82 . Then, the air conditioner ECU 80 controls the operation of the first rear seat mode actuator 131a so that the conditioned air is blown from the outlet corresponding to the determined first rear seat blow mode.
  • the air conditioner ECU 80 determines the second rear air outlet mode of the second air conditioner 140 based on the second target outlet temperature RrTAO calculated by the second air conditioner control unit 82 . Then, the air conditioner ECU 80 controls the operation of the second rear seat mode actuator 146a so that the conditioned air is blown out from the outlet corresponding to the determined second rear seat air outlet mode.
  • the air conditioner ECU 80 controls the operation of the compressor 111 and the first inside/outside air actuator 122a so that the temperature of the conditioned air blown out from the outlet corresponding to the determined first front seat blowing mode approaches the first target blowing temperature FrTAO. control the actuation. Further, the air conditioner ECU 80 controls the operation of the first fan actuator 123a and the first front air mix actuator 125a so that the temperature of the conditioned air approaches the first target blowout temperature FrTAO.
  • the air conditioner ECU 80 causes the temperature of the conditioned air blown from the outlet corresponding to the determined first rear seat outlet mode and the outlet corresponding to the determined second rear seat outlet mode to approach the second target outlet temperature RrTAO. As such, it controls the operation of the compressor 111 . Further, the air conditioner ECU 80 controls the operation of the first inside/outside air actuator 122a, the first fan actuator 123a, and the first rear air mix actuator 130a so that the temperature of the conditioned air approaches the second target blowout temperature RrTAO. The air conditioner ECU 80 also controls the operation of the second inside/outside air actuator 142a, the second fan actuator 143a, and the second rear air mix actuator 145a so that the temperature of the conditioned air approaches the second target blowout temperature RrTAO.
  • the air conditioner ECU 80 controls the air conditioning so that the conditioned air blown into the first space S1 approaches the first target air temperature FrTAO and the air conditioned air blown into the second space S2 approaches the second target air temperature RrTAO. It controls various components of the unit 10 .
  • the first air conditioner 120 adjusts the thermal sensation of the front seat occupant 3 while air-conditioning the first space S1 by blowing conditioned air from the air outlet corresponding to the determined first front seat air outlet mode.
  • the first air conditioner 120 adjusts the thermal sensation of the rear seat occupant 5 while air-conditioning the second space S2 by blowing air-conditioned air from the air outlet corresponding to the determined first rear seat air blowing mode.
  • the second air conditioner 140 adjusts the heat sensation of the rear seat occupant 5 while air-conditioning the second space S2 by blowing conditioned air from the air outlet corresponding to the determined second rear seat air outlet mode.
  • the seat air conditioner 40 starts operating based on the second inside air temperature RrTr and the seat target temperature STset. For example, when the second inside air temperature RrTr is equal to or higher than the seat target temperature STset, the air conditioner ECU 80 operates the back fan actuator 42a and the seat fan actuator 44a. Further, when the second inside air temperature RrTr is lower than the seat target temperature STset, the air conditioner ECU 80 activates the neck heater 45 , the back heater 46 and the thigh heater 47 .
  • FIG. 10 shows the thermal sensation given to the rear seat occupant 5 when the air conditioning of the second space S2 and the thermal sensation of the rear seat occupant 5 are adjusted without considering the thermal sensation distribution of the rear seat occupant 5.
  • the thermal sensation adjustment system adjusts the thermal sensation of the rear seat occupant 5 without considering the thermal sensation in summer will be explained.
  • the first air conditioner 120 blows out the conditioned air whose temperature is adjusted to approach the second target air temperature RrTAO from the first rear seat face outlet 136a into the second space S2.
  • the second air conditioner 140 blows out the conditioned air whose temperature is adjusted to approach the second target air temperature RrTAO from the second rear seat face outlet 148a into the second space S2.
  • the seat air conditioner 40 draws in air from the rear air vent 41a and the seat air vent 43a.
  • the seat air conditioner 40 operates the back fan 42 and the seat fan 44 as necessary to cool the back, buttocks and thighs of the rear seat occupant 5 .
  • the thermal sensation adjustment system tends to give the same thermal sensation as the thermal sensation reference value to many of the plurality of body parts of the rear seat occupant 5, but some body parts have the same thermal sensation reference value. It is difficult to give the same feeling of warmth. Specifically, the thermal sensation adjustment system tends to give a comfortable thermal sensation to the chest area A2, the thigh area A3, and the foot area A4, but tends to give a higher thermal sensation to the head area A1 than the comfortable thermal sensation. Therefore, it is difficult to give the head area A1 the same thermal sensation as the thermal sensation reference value.
  • the thermal sensation adjustment system adjusts the thermal sensation of the rear seat occupant 5 without considering the thermal sensation in winter.
  • the first air conditioner 120 blows out the conditioned air whose temperature is adjusted to approach the second target air temperature RrTAO from the first rear seat foot outlet 137a into the second space S2.
  • the second air conditioner 140 also blows out the conditioned air whose temperature is adjusted to approach the second target air temperature RrTAO from the second rear seat foot outlet 149a into the second space S2.
  • the seat air conditioner 40 operates a neck heater 45, a back heater 46 and a thigh heater 47 as necessary.
  • the temperature of the entire second space S2 rises to the second target temperature RrTset as shown in FIG. adjusted to approach
  • the seat air conditioner 40 warms the neck, back, buttocks and thighs of the rear seat occupant 5 .
  • the thermal sensation adjustment system tends to give a thermal sensation that feels comfortable to the head area A1 and the chest area A2, but the thermal sensation that feels comfortable to the thigh area A3 and the leg area A4. It is easy to give a feeling of warmth that is lower than the feeling. Therefore, it is difficult to give the same thermal sensation as the thermal sensation reference value to the thigh area A3 and the leg area A4.
  • the predetermined temperature is a temperature that is set so as to give the head area A1 and the chest area A2 a comfortable thermal sensation.
  • the second target air temperature RrTAO is set to a predetermined temperature so as to obtain the target thermal sensation in the head area A1 and the chest area A2, relatively high-temperature air tends to be trapped in the vehicle interior. This is because air having a low temperature tends to be trapped on the lower side of the target. In this case, the rear seat occupant 5 may feel discomfort in the lower half of the body among the plurality of body parts.
  • the thermal sensation adjustment system adjusts the thermal sensation adjustment system to the thigh area A3 and the leg area A4. It is easy to give a comfortable thermal sensation. However, in this case, the thermal sensation adjustment system tends to give a thermal sensation higher than the comfortable thermal sensation in the head area A1 and the chest area A2. It is difficult to give a sense of warmth.
  • the thermal sensation adjustment system of the present embodiment adjusts the thermal sensation of the rear seat occupant 5 in consideration of the thermal sensation distribution of the rear seat occupant 5 when adjusting the thermal sensation of the rear seat occupant 5.
  • the thermal sensation adjustment system adjusts the thermal sensation of the rear seat occupant 5 in consideration of the thermal sensation distribution of the rear seat occupant 5.
  • the target setting unit 83 performs the following processing. First, the target setting section 83 selects an operation mode based on the operation content of the mode selection switch of the first setting section 75 or the second setting section 76 .
  • the goal setting unit 83 selects one of the default mode, the relax mode, and the focus mode based on the operation content of the mode selection switch of the first setting unit 75 or the second setting unit 76. Then, when the default mode is set, the target setting unit 83 refers to a predetermined control map based on the outside air temperature Tam and the amount of solar radiation Ts, and operates in either the summer default mode or the winter default mode. Select mode.
  • the target setting unit 83 refers to the thermal sensation reference value corresponding to the selected driving mode, and sets the provisional target thermal values of the head area A1, the chest area A2, the thigh area A3, and the leg area A4 in the driving mode. Determines the value of feeling.
  • the provisional target thermal sensation is also referred to as provisional target SET*.
  • the target setting unit 83 determines a correction value for the provisional target SET*.
  • the target setting unit 83 selects the area based on the operation. A correction value for correcting the provisional target SET* is determined. Further, when a plurality of areas among the head area A1, the chest area A2, the thigh area A3, and the foot area A4 are operated to correct by the correction switch, the target setting unit 83 selects the corresponding area selected based on the operation. A correction value for correcting the provisional target SET* for each of the plurality of areas is determined.
  • the target setting unit 83 determines the target thermal sensation of the head area A1, chest area A2, thigh area A3, and foot area A4 as the target SET*. Specifically, the target setting unit 83 adds or subtracts the correction value for each area to or from the provisional target SET* for all of the head area A1, chest area A2, thigh area A3, and foot area A4, thereby obtaining the target SET*. to decide.
  • the target setting unit 83 determines the value of the provisional target SET* as the target SET* for each of the head area A1, chest area A2, thigh area A3, and leg area A4.
  • SET* is a temperature index called standard new effective temperature.
  • SET* is calculated by taking into account the six elements of the environment: temperature, humidity, radiation, air current, metabolic rate of the human body, and the amount of clothing.
  • SET* defines a standard environment for ASHRAE.
  • SET* in the real environment is the temperature of the standard environment when a person who was in the real environment moves to the standard environment and feels that it is physically the same as the real environment.
  • the details of SET* are well-known technology, so the explanation is omitted.
  • SET* has a one-to-one correspondence with the thermal sensation shown in the distribution of the thermal sensation reference value. Therefore, SET* is also an index representing thermal sensation.
  • the thermal sensation adjustment system of the present embodiment can change the thermal sensation reference value for each operation mode to set the target thermal sensation distribution to a desired value.
  • the second air conditioning control unit 82 calculates the second target outlet temperature RrTAO by executing the processing described below.
  • the second air conditioning control unit 82 uses the same method as the method described in the operation of the target setting unit 83, based on the operation content of the mode selection switch of the first setting unit 75 or the second setting unit 76, Select a driving mode.
  • the second air conditioning control unit 82 reads the second target temperature RrTset set by operating the temperature setting switch.
  • the second air conditioning control unit 82 also reads the second inside temperature RrTr, the outside temperature Tam, and the amount of solar radiation Ts detected by the second inside temperature sensor 72, the outside temperature sensor 73, and the solar radiation sensor 74.
  • the second air conditioning control unit 82 reads the thermal sensation deviation amount Dt for each area of the head area A1, chest area A2, thigh area A3, and foot area A4 calculated by the thermal sensation deviation calculation unit 84a, which will be described later.
  • the thermal sensation deviation amount Dt is the deviation amount of the current thermal sensation of the rear seat occupant 5 from the target SET*.
  • the second air conditioning control unit 82 calculates a provisional second target outlet temperature VRrTAO based on the second target temperature RrTset, the second inside temperature RrTr, the outside temperature Tam, and the amount of solar radiation Ts. Specifically, the second air-conditioning control unit 82 first calculates a provisional second target outlet temperature VRrTAO using Equation 3 below.
  • VRrTAO Kset ⁇ RrTset ⁇ Kr ⁇ RrTr ⁇ Kam ⁇ Tam ⁇ Ks ⁇ Ts+C
  • RrTset is the target temperature of the second space S2 set by the temperature setting switch.
  • RrTr is the temperature of the second space S2 detected by the second inside air temperature sensor 72; Tam is the temperature outside the passenger compartment detected by the outside air temperature sensor 73 .
  • Ts is the amount of solar radiation detected by the solar radiation sensor 74 .
  • Kset, Kr, Kam, and Ks are control gains, and C is a correction constant.
  • the second air conditioning control unit 82 sets the second target outlet temperature RrTAO based on the provisional second target outlet temperature VRrTAO and the thermal sensation deviation amount Dt.
  • the second target blowout temperature RrTAO is set so that the thermal sensation of the part corresponding to the area with the largest thermal sensation deviation amount Dt among the head area A1, chest area A2, thigh area A3, and foot area A4 approaches the target SET*. set.
  • the second target air temperature RrTAO is set to the provisional second target air temperature VRrTAO so as to increase the value of the thermal sensation. set to a higher temperature than Further, if the thermal sensation deviation amount Dt of the area where the thermal sensation deviation amount Dt is the largest is a negative value, the second target air temperature RrTAO is set to the provisional second target air temperature VRrTAO so as to decrease the value of the thermal sensation. set to a lower temperature than
  • the deviation part temperature control section 84 has a thermal sensation deviation calculation section 84a, a wind direction determination section 84b, and an FrRrTAO calculation section 84c.
  • the deviation part temperature control section 84 functions as a thermal sensation deviation calculation section 84a, a wind direction determination section 84b, and an FrRrTAO calculation section 84c.
  • the deviation portion temperature control section 84 may include a plurality of circuit modules corresponding to the thermal sensation deviation calculation section 84a, the wind direction determination section 84b, and the FrRrTAO calculation section 84c one-to-one.
  • the deviation part temperature control unit 84 executes the processing shown in FIG. 11 to calculate the direction and volume of the conditioned air blown into the second space S2 by the first air conditioner 120 and the third target blowout temperature FrRrTAO.
  • the third target blowout temperature FrRrTAO is the target temperature of the conditioned air that the first air conditioner 120 blows into the second space S2.
  • step S10 based on the detection signal of the IR sensor 70, the thermal sensation deviation calculation unit 84a calculates the SET* (that is, the current thermal sensation) of the rear seat occupant 5 and the target value determined by the target setting unit 83. Calculate the difference from SET*.
  • the thermal sensation difference calculator 84a calculates by subtracting the current SET* from the target SET* in the same areas of the head area A1, chest area A2, thigh area A3, and foot area A4.
  • a thermal sensation deviation amount Dt which is the amount of deviation between the target SET* and the current SET*.
  • step S12 the thermal sensation deviation calculation unit 84a calculates the absolute value of the thermal sensation deviation amount Dt based on the thermal sensation deviation amount Dt of each of the head area A1, chest area A2, thigh area A3, and foot area A4.
  • a deviation maximum value Dmax which is the maximum value, is calculated.
  • the thermal sensation deviation calculation unit 84a selects an area in which the thermal sensation deviation amount Dt is the maximum deviation value Dmax among the head area A1, the chest area A2, the thigh area A3, and the foot area A4.
  • the thermal sensation deviation calculator 84a outputs information on the calculated thermal sensation deviation amount Dt to the second air conditioning controller 82 and the FrRrTAO calculator 84c. Thereby, as described above, the second air conditioning control unit 82 sets the second target outlet temperature RrTAO based on the provisional second target outlet temperature VRrTAO and the thermal sensation deviation amount Dt.
  • the thermal sensation difference calculation unit 84a outputs information on the calculated maximum difference value Dmax to the wind direction determination unit 84b and the FrRrTAO calculation unit 84c. Further, the thermal sensation deviation calculation unit 84a outputs information on the area where the thermal sensation deviation amount Dt is the maximum deviation value Dmax to the wind direction determination unit 84b.
  • step S14 the wind direction determining unit 84b determines the direction of the conditioned air when the first air conditioner 120 blows the conditioned air into the second space S2.
  • the wind direction determination unit 84b determines the body direction of the rear seat occupant 5 corresponding to the area where the thermal sensation deviation amount Dt is the maximum deviation value Dmax among the head area A1, the chest area A2, the thigh area A3, and the foot area A4. A part is determined as a thermal sensation adjustment part. Then, when the area corresponding to any one of the head area A1, the chest area A2, and the thigh area A3 is determined as the thermal sensation adjustment area, the airflow direction determination unit 84b causes the conditioned air to blow out from the first rear seat face air outlet 136a. Therefore, the first rear seat blow-out mode is determined to be the first rear seat face mode. Furthermore, the airflow direction determining unit 84b determines the posture of the airflow direction adjusting plate 138 so that the conditioned air blown out from the first rear seat face air outlet 136a hits the thermal sensation adjusting portion.
  • the wind direction determination unit 84b directs the first rear seat so that the conditioned air is blown out from the first rear seat foot outlet 137a.
  • the blowing mode is determined to be the first rear seat foot mode.
  • step S16 the FrRrTAO calculator 84c reads the second target outlet temperature RrTAO calculated by the second air conditioning controller 82.
  • the FrRrTAO calculator 84c calculates the third target blowout temperature FrRrTAO of the conditioned air blown out from the first rear seat face blower 136a and the first rear seat foot blower 137a.
  • the third target air temperature FrRrTAO is set with reference to a control map that is predetermined based on the thermal sensation deviation amount Dt and the second target air temperature RrTAO.
  • the third target blowout temperature FrRrTAO is set so that the thermal sensation of the thermal sensation adjustment portion approaches the target SET*. For example, if the thermal sensation deviation amount Dt of the thermal sensation adjustment portion is a positive value, the third target blowout temperature FrRrTAO is set higher than the second target blowout temperature RrTAO so as to increase the thermal sensation value of the thermal sensation adjustment portion. Set to high temperature. Further, if the thermal sensation deviation amount Dt of the thermal sensation adjustment portion is a negative value, the third target blowout temperature FrRrTAO is set higher than the second target blowout temperature RrTAO so as to decrease the thermal sensation value of the thermal sensation adjustment portion. Set to low temperature.
  • step S20 the FrRrTAO calculation unit 84c determines the rotation speed of the first centrifugal fan 123 so that a sufficient amount of air is blown toward the thermal sensation adjustment portion.
  • the rotation speed of first centrifugal fan 123 is set by referring to a predetermined control map based on second target air temperature RrTAO and third target air temperature FrRrTAO.
  • the second target blowout temperature RrTAO is determined based on the thermal sensation deviation amount Dt. Further, the air conditioner ECU 80 determines the third target blowout temperature FrRrTAO and the direction and Determine the air volume.
  • the air conditioner ECU 80 controls the operation of various components of the first air conditioner 120 based on the first target air temperature FrTAO and the third target air temperature FrRrTAO. Also, the air conditioner ECU 80 controls the operation of various components of the second air conditioner 140 based on the second target outlet temperature RrTAO.
  • the air conditioner ECU 80 determines the first front air outlet mode based on the calculated first target air outlet temperature FrTAO. Then, the air conditioner ECU 80 controls the operation of the first front seat mode actuator 126a so that the conditioned air is blown from the outlet corresponding to the determined first front seat blow mode.
  • the air conditioner ECU 80 determines the first rear seat blowout mode based on the direction of the conditioned air determined in step S14. Then, the air conditioner ECU 80 controls the operation of the first rear seat mode actuator 131a so that the conditioned air is blown from the outlet corresponding to the determined first rear seat blow mode.
  • the air conditioner ECU 80 controls the operation of the wind direction actuator 138a so that the wind direction adjusting plate 138 is positioned in the attitude determined in step S14. do.
  • Posture data indicating how the wind direction adjusting plate 138 should be positioned when any one of the head area A1, chest area A2, and thigh area A3 is the thermal sensation adjustment portion is recorded in the air conditioner ECU 80 in advance.
  • the air conditioner ECU 80 uses the attitude data to determine the attitude of the wind direction adjusting plate 138 .
  • the value of the posture data may be corrected by the setting operation of the rear seat occupant 5 .
  • the posture data values may be modified based on the position of the body part imaged by the IR sensor 70 .
  • the air conditioner ECU 80 determines the second rear seat blowout mode based on the second target blowout temperature RrTAO calculated by the second air conditioning control unit 82 . Then, the air conditioner ECU 80 controls the operation of the second rear seat mode actuator 146a so that the conditioned air is blown out from the outlet corresponding to the determined second rear seat air outlet mode.
  • the air conditioner ECU 80 also controls the first fan actuator 123a so that the first centrifugal fan 123 rotates at the number of revolutions determined in step S20.
  • the air conditioner ECU 80 determines the rotational speed of the compressor 111, the rotational position of the first inside/outside air switching door 122, the first The opening degree of the front seat air mix door 125 is determined.
  • the air conditioner ECU 80 also determines the opening degree of the first rear air mixing door 130, the rotational position of the second inside/outside air switching door 142, the rotational speed of the second centrifugal fan 143, and the opening degree of the second air mixing door 145. .
  • the air conditioner ECU 80 sets individually set targets for the temperature of the air-conditioned air blown from the air outlet corresponding to each of the determined first front seat air outlet mode, first rear seat air outlet mode, and second rear seat air outlet mode. Control these devices to approach the temperature of
  • the air conditioner ECU 80 controls the rotation speed of the compressor 111 and the first The rotational position of the inside/outside air switching door 122 is determined. In addition, the air conditioner ECU 80 controls the opening degree of the first front air mix door 125, the first rear air mix The degree of opening of door 130 is determined.
  • the air conditioning ECU 80 may control the various components so that the rear seat occupant 5 has a better thermal sensation than the front seat occupant 3 has.
  • the air conditioner ECU 80 controls various components so that the temperature of the conditioned air blown out from the air conditioning unit 10 approaches the second target blowout temperature RrTAO and the third target blowout temperature FrRrTAO rather than the first target blowout temperature FrTAO. good.
  • the air conditioner ECU 80 may control various components so that the temperature of the conditioned air blown out by the air conditioning unit 10 approaches the third target blowout temperature FrRrTAO rather than the second target blowout temperature RrTAO.
  • the air conditioner ECU 80 may control various components so that the temperature of the blown conditioned air approaches the second target blowout temperature RrTAO rather than the third target blowout temperature FrRrTAO.
  • the first air conditioner 120 blows out conditioned air from the first front seat face outlet 133a when operating in the first front seat face mode, thereby filling the first space S1. While performing air conditioning, mainly the feeling of warmth of the front seat occupant 3 in the upper half of the body is adjusted. Further, when operating in the first front seat foot mode, the first air conditioner 120 air-conditions the first space S1 by blowing air-conditioned air from the first front seat foot outlet 134a, while mainly air-conditioning the front seat occupants. Adjust the heat sensation of the lower body of 3. When operating in the defroster mode, the first air conditioner 120 air-conditions the first space S1 by blowing conditioned air from the defroster outlet 135a, and blows the conditioned air to the front to prevent fogging of the windshield. put it on the glass.
  • the first air conditioner 120 When the first air conditioner 120 operates in the first rear seat face mode, the first air conditioner 120 air-conditions the second space S2 by blowing air from the first rear seat face air outlet 136a. Adjust the thermal sensation of the thermal sensation adjustment part.
  • the first air conditioner 120 air-conditions the second space S2 by blowing out conditioned air from the first rear seat foot outlet 137a, while the rear seat occupant 5 is Adjust the thermal sensation of the thermal sensation adjustment part.
  • the first air conditioner 120 adjusts the state of the conditioned air so that the higher the third target blowout temperature FrRrTAO, the warmer the thermal sensation adjustment portion can give. bring the thermal sensation closer to the target thermal sensation.
  • the first air conditioner 120 adjusts the state of the conditioned air so that the lower the third target blowout temperature FrRrTAO, the cooler the thermal sensation can be given to the thermal sensation adjustment portion. Bring the feeling closer to the target thermal sensation.
  • the first air conditioner 120 blows conditioned air toward individual body parts with the largest thermal sensation deviation amount at each time point, thereby reducing the absolute value of the thermal sensation deviation amount Dt of that part.
  • the body part with the largest absolute value of the amount of thermal sensation divergence Dt changes from moment to moment. Therefore, the absolute value of the thermal sensation divergence amount Dt is reduced individually in the parts corresponding to the head area A1, the chest area A2, the thigh area A3, and the foot area A4.
  • the absolute value of the thermal sensation divergence amount Dt approaches the target thermal sensation for any body part. That is, the degree of similarity between the current SET* distribution by body part and the target SET* distribution by body part increases. As a result, the thermal sensation of each of the plurality of body parts of the rear seat occupant 5 is guided to the target SET* determined in step S18.
  • the second air conditioner 140 air-conditions the second space S2 by blowing out conditioned air from the second rear seat face air outlet 148a, while mainly air-conditioning the rear seat occupants. Adjust the heat sensation of the upper body of 5. Further, when operating in the second rear seat foot mode, the second air conditioner 140 air-conditions the second space S2 by blowing air-conditioning air from the second rear seat foot outlet 149a, while mainly air-conditioning the rear seat occupants. Adjust the heat sensation of the lower body of 5.
  • the air conditioner ECU 80 determines to start and stop the operation of the back fan 42 and the seat fan 44 based on the second internal air temperature RrTr and the seat target temperature STset. Then, when operating the seat fan 44 , the air conditioner ECU 80 determines the number of rotations of the back fan 42 and the number of rotations of the seat fan 44 .
  • the air conditioner ECU 80 determines to start and stop the operation of the neck heater 45, the back heater 46, and the thigh heater 47 based on the second inside air temperature RrTr and the seat target temperature STset. do. Then, when the neck heater 45, the back heater 46, and the thigh heater 47 are operated, the air conditioner ECU 80 determines the amount of heat generated by each of the neck heater 45, the back heater 46, and the thigh heater 47.
  • the air conditioner ECU 80 controls the rotation speed of the back fan 42 and the rotation speed of the seat fan 44 based on the difference between the second inside air temperature RrTr and the seat target temperature STset. to decide. Specifically, when the difference between the second inside air temperature RrTr and the seat target temperature STset is equal to or greater than a predetermined cooling threshold, the air conditioner ECU 80 controls the rotation of the back fan 42 as compared to when the difference is smaller than the predetermined cooling threshold. Increase the number and rotation speed of the seat fan 44.
  • the predetermined cooling threshold value is a value for determining whether or not to relatively increase the amount of air sucked from the rear air vent 41a and the seat air vent 43a, and is set in the air conditioner ECU 80 in advance.
  • the seat air conditioner 40 cools mainly the back of the rear seat occupant 5 among a plurality of body parts by sucking air from the rear air vent 41a.
  • the seat air conditioner 40 cools mainly the buttocks and thighs among the plurality of body parts of the rear seat occupant 5 by sucking air from the seat surface ventilation openings 43a.
  • the air conditioner ECU 80 controls the neck heater 45, the back heater 46, and the thigh heater 47 based on the difference between the second inside air temperature RrTr and the seat target temperature STset. Determine the calorific value of each. Specifically, when the difference between the second inside air temperature RrTr and the seat target temperature STset is equal to or greater than a predetermined heating threshold, the air conditioner ECU 80 controls the neck heater 45, the back heater 45, and the back heater 45 as compared to when the difference is smaller than the predetermined heating threshold. The amount of heat generated by each of the heater 46 and thigh heater 47 is increased.
  • the predetermined heating threshold is a value for determining whether or not to relatively increase the amount of heat generated by each of the neck heater 45, the back heater 46, and the thigh heater 47, and is determined in the air conditioner ECU 80 in advance.
  • the seat air conditioner 40 heats the neck heater 45 to mainly warm the neck of the rear seat occupant 5 among a plurality of body parts.
  • the seat air conditioner 40 mainly warms the back of the rear seat occupant 5 among a plurality of body parts by the heat generated by the back heater 46 .
  • the seat air conditioner 40 mainly warms the buttocks and thighs among the plurality of body parts of the rear seat occupant 5 by generating heat from the thigh heaters 47 .
  • the thermal sensation adjustment system does not adjust the temperature of the entire second space S2, but rather adjusts the thermal sensation of each of a plurality of body parts of the rear seat occupant 5 as shown in FIG. can do. Thereby, the thermal sensation adjustment system can adjust the thermal sensation of the rear seat occupant 5 so that the target thermal sensation distribution for each driving mode set by the target setting unit 83 is realized.
  • the second air conditioner 140 blows air-conditioned air toward the second space S2, thereby air-conditioning the entire second space S2 and making the rear seat occupant 5 feel cool. It can give you a feeling of warmth.
  • the seat air conditioner 40 can cool the rear seat occupant 5 by sucking air from the rear air vent 41a and the seat air vent 43a.
  • the head area A1 of the rear seat occupant 5 is supported by blowing the conditioned air toward the head area A1 where the first air conditioner 120 is likely to need to provide a relatively cool thermal sensation compared to other parts. It can give a warm feeling that feels cool to the part to be treated.
  • the part corresponding to the head area A1 can be made comfortable without adding a temperature control device for adjusting the thermal sensation of the part corresponding to the head area A1.
  • the second target blowout temperature RrTAO is set to a temperature that can give a comfortable thermal sensation to the parts corresponding to the head area A1 and the chest area A2.
  • the second air conditioner 140 blows air-conditioned air toward the second space S2, thereby air-conditioning the entire second space S2 and giving the rear seat occupant 5 a warm feeling.
  • the seat air conditioner 40 can warm the rear seat occupant 5 by generating heat from the neck heater 45 , the back heater 46 , and the thigh heater 47 .
  • the first air conditioner 120 blows the conditioned air toward the lower side of the second space S2 where relatively low-temperature air tends to be trapped, the area corresponding to the thigh area A3 of the rear seat occupant 5 feels warm. It can give you a feeling of warmth.
  • the thermal sensation adjustment system changes the thermal sensation that each of the plurality of body parts of the rear seat occupant 5 is likely to feel comfortable in accordance with the external environment and the state of mind desired by the rear seat occupant 5. Also, each body part can give a warm feeling that is comfortable and easy to feel. In addition, even if the value of thermal sensation that the rear seat occupant 5 feels comfortable is different for each of a plurality of body parts of the rear seat occupant 5, it is possible to give the thermal sensation that each body part feels comfortable. .
  • the thermal sensation adjustment system adjusts the thermal sensation for each of a plurality of body parts of the rear seat occupant 5 to make the rear seat occupant 5 comfortable. can be made Furthermore, the thermal sensation adjustment system adjusts the thermal sensation for each of a plurality of body parts of the rear seat occupant 5, thereby calming the spirit of the rear seat occupant 5 and activating the spirit of the rear seat occupant 5. It can give you a feeling of warmth.
  • the first air conditioner 120 blows the conditioned air toward the parts, thereby The warm feeling of the rear seat occupant 5 can be adjusted. Therefore, it is not necessary to add a temperature control device for each part of the rear seat occupant 5 whose thermal sensation is to be adjusted. Therefore, it is possible to adjust the thermal sensation for each body part of the rear seat occupant 5 while suppressing the number of installed temperature control devices.
  • the front seats 2 are provided in the first space S1, and the rear seats 4 are provided in the second space S2.
  • the first air conditioner 120 blows air-conditioned air toward a portion of the rear seat occupant 5 seated in the rear seat 4 where the thermal sensation is different.
  • the first air conditioner 120 has a larger air conditioning capacity than the second air conditioner 140 . For this reason, the first air conditioner 120 with the larger air conditioning capacity is used to heat the rear seat occupant 5 in the second space S2 air-conditioned by the second air conditioner 140 with the lower air conditioning capacity. Feelings can be adjusted.
  • the front seat occupant 3 existing in the first space S1 air-conditioned by the second air conditioner 140 with the lower air conditioning capacity and the first air conditioner 120 with the higher air conditioning capacity is used to warm the front seat occupant 3. It is easier to adjust the thermal sensation of the rear seat occupant 5 as compared with the case of adjusting the thermal sensation.
  • the first air conditioner 120 has the wind direction adjusting plate 138 that adjusts the direction of the conditioned air.
  • the airflow direction adjusting plate 138 changes the direction of the air-conditioned air so that the air-conditioned air is blown toward the body parts of the rear seat occupant 5 where the thermal sensation is different, and heats the parts where the thermal sensation is different. Bring the feeling closer to the target thermal sensation.
  • the heat sensation deviation can be achieved with a simple configuration. Air-conditioned air can be blown out toward the part.
  • the IR sensor 70 detects the ambient temperature of the rear seat occupant 5, and the detected ambient temperature is used to estimate the thermal sensation of each of a plurality of body parts of the rear seat occupant 5. According to this, the thermal sensation of the rear seat occupant 5 can be detected with a simple configuration compared to the configuration in which a thermal sensor for detecting the thermal sensation is provided for each of a plurality of body parts of the rear seat occupant 5 .
  • the space partition wall 6 is provided with the first rear seat face outlet 136a through which the first air conditioner 120 blows the conditioned air toward the second space S2 has been described, but the present invention is limited to this. not.
  • the first rear seat face outlet 136a may be provided in the center pillar 7 in addition to the space partition wall 6, as shown in FIG.
  • second air conditioner 140 can cool and heat the second space S2
  • second air conditioner 140 may be configured to perform either one of cooling and heating.
  • the first air conditioner 120 that air-conditions the first space S1 in which the front seat 2 is provided heats the rear seat occupant 5 in the second space S2 in which the rear seat 4 is provided.
  • the second air conditioner 140 has an air outlet for blowing air-conditioned air toward the front seat occupant 3, and the second air conditioner 140 adjusts the thermal sensation of the front seat occupant 3 at a portion where the thermal sensation is different. may be adjusted.
  • the thermal sensation adjustment system includes the seat air conditioner 40, and in addition to the first air conditioner 120, the seat air conditioner 40 is configured to be able to adjust the thermal sensation of a plurality of body parts of the rear seat occupant 5.
  • the thermal sensation adjustment system may be configured without the seat air conditioner 40 and may be configured to adjust the thermal sensation for each of a plurality of body parts of the rear seat occupant 5 only with the first air conditioner 120 .
  • the first air conditioning device 120 may be configured without the first rear seat foot outlet 137a, and may be configured to adjust the direction of the conditioned air blown out by the first air conditioning device 120 only by the air direction adjusting plate 138. .
  • the wind direction adjusting plate 138 adjusts the direction of the conditioned air blown out from the first rear seat face outlet 136a to adjust the thermal sensation of a plurality of body parts of the rear seat occupant 5. It is not limited to this.
  • the first air conditioner 120 does not have the airflow direction adjusting plate 138, and has a plurality of outlets corresponding to a plurality of body parts of the rear seat occupant 5. By switching the outlets for blowing out the conditioned air, the rear seat occupant can You may adjust the thermal sensation of a plurality of body parts of 5.
  • the thermal sensation detection unit is configured by the IR sensor 70, the IR sensor 70 detects the ambient temperature of the rear seat occupant 5, and the detected ambient temperature is used to detect the body temperature of the rear seat occupant 5.
  • the thermal sensation adjustment system the IR sensor 70 detects the surface temperature of each of a plurality of body parts of the rear seat occupant 5 , and based on the temperature information detected by the IR sensor 70 , the air conditioner ECU 80 controls the temperature of the rear seat occupant 5 . may be configured to calculate the surface temperature for each body part.
  • the thermal sensation detection unit is composed of a plurality of temperature sensors respectively corresponding to a plurality of body parts of the rear seat occupant 5, and the plurality of temperature sensors detect the temperature of each of the plurality of body parts of the rear seat occupant 5. may be configured to detect.
  • the distribution of the thermal sensation reference value in each operation mode is shown in FIGS. 4 to 7, but the distribution of the thermal sensation reference value is not limited to this.
  • the distribution of the thermal sensation reference value in each operation mode shown in FIGS. 4 to 7 is an example, and can be changed as appropriate.
  • the first air conditioner 120 blows conditioned air toward the body part having the largest absolute value of the thermal sensation divergence amount Dt among the plurality of body parts of the rear seat occupant 5 has been described. It is not limited to this.
  • the first air conditioner 120 controls the thermal sensation of the plurality of body parts according to a predetermined fixed order. may be adjusted. Further, when the thermal sensation of a plurality of body parts of the rear seat occupant 5 deviates from the target thermal sensation, the first air conditioner 120 controls the first rear seat face outlet 136a and the first rear seat foot outlet 137a. It is also possible to simultaneously adjust the thermal sensation of a plurality of body parts by, for example, simultaneously blowing air-conditioned air from the air conditioner.
  • SET* As an index representing thermal sensation
  • PMV Predicted Mean Vote
  • the air conditioner ECU 80 may identify the posture of the rear seat occupant 5 by image recognition technology from the image obtained from the IR sensor 70, and select the driving mode according to the identified behavior. For example, when the posture of the seatback of the rear seat 4 has changed from a predetermined posture, the air conditioner ECU 80 may select the relax mode.
  • the thermal sensation adjustment system may include a processing device provided separately from the air conditioner ECU 80, and the processing device may perform the processing of FIG. In that case, the processing device corresponds to the thermal sensation deviation calculator 84a by executing step S12.
  • the first air conditioner 120 adjusts the thermal sensation of the front seat occupant 3 seated in the driver's seat, which is the front seat 2, but the present invention is not limited to this.
  • the first air conditioner 120 may adjust the thermal sensation of the front seat occupant 3 sitting in the front passenger seat in addition to the front seat passenger 3 sitting in the driver's seat.
  • the front-seat first ventilation passage 121aa and the rear-seat first ventilation passage 121ab may be divided into ventilation passages corresponding to the driver's seat and the passenger's seat, respectively, by a partition plate.
  • the thermal sensation adjustment system may be configured to independently adjust the thermal sensations of the front seat occupant 3 sitting in the driver's seat and the front seat occupant 3 sitting in the front passenger seat.
  • the second ventilation passage 141a is a single passage
  • the second air passage 141a in the second air conditioner 140 may be divided into two air passages corresponding to the rear seats 4 by a partition plate.
  • the thermal sensation adjustment system may be configured to independently adjust the thermal sensation of each of the rear seat occupants 5 seated in the two rear seats 4 .
  • the thermal sensation adjustment system may be configured without the outside air temperature sensor 73 and the solar radiation sensor 74, and may be configured to receive the outside air temperature Tam and the amount of solar radiation Ts from a server or cloud outside the vehicle 1. .
  • the thermal sensation adjustment system has a configuration in which the outside air temperature sensor 73 and the solar radiation sensor 74 are eliminated, and acquires related information related to the outside air temperature Tam and the amount of solar radiation Ts from a server or cloud outside the vehicle 1. good too. Then, the thermal sensation adjustment system may be configured to estimate the outside air temperature Tam and the amount of solar radiation Ts from the acquired relevant information.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne un système de réglage de la sensation de chaleur permettant de régler la sensation de chaleur d'un occupant d'un véhicule comprenant : un premier dispositif de climatisation (120) qui souffle de l'air conditionné vers un premier espace (S1) ; un second dispositif de climatisation (140) qui souffle de l'air conditionné vers un second espace (S2), qui est un espace à climatiser qui est différent du premier espace ; une unité de détection de sensation de chaleur (70) qui détecte des informations se rapportant à la sensation de chaleur au niveau de chaque partie d'une pluralité de parties de corps d'un occupant ; et une unité de calcul d'écart de sensation de chaleur (84a) qui calcule la différence entre une sensation de chaleur cible de chacune de la pluralité de parties de corps de l'occupant et la sensation de chaleur de chacune de la pluralité de parties de corps de l'occupant calculée sur la base des informations concernant la sensation de chaleur détectée par l'unité de détection de sensation de chaleur. Si une partie déviée de sensation de chaleur, au niveau de laquelle un écart existe entre la sensation de chaleur calculée et la sensation de chaleur cible, est présente parmi la pluralité de parties de corps de l'occupant présentes dans le second espace, le premier dispositif de climatisation souffle de l'air climatisé vers la partie déviée de sensation de chaleur de telle sorte que la sensation de chaleur au niveau de la partie déviée de sensation de chaleur se rapproche de la sensation de chaleur cible.
PCT/JP2022/028607 2021-08-18 2022-07-25 Système de réglage de la sensation de chaleur WO2023021939A1 (fr)

Priority Applications (1)

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CN202280033220.7A CN117320903A (zh) 2021-08-18 2022-07-25 温热感调整系统

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JP2021-133617 2021-08-18
JP2021133617A JP2023028118A (ja) 2021-08-18 2021-08-18 温熱感調整システム

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63312217A (ja) * 1987-06-15 1988-12-20 Nissan Motor Co Ltd 車両用空調装置
JPH07117455A (ja) * 1993-10-27 1995-05-09 Nippondenso Co Ltd 自動車用空調装置
JP2006240403A (ja) * 2005-03-01 2006-09-14 Denso Corp 車両用空調装置
JP2020069967A (ja) * 2018-11-01 2020-05-07 株式会社デンソー 車両用空調装置
JP2020128166A (ja) * 2019-02-08 2020-08-27 株式会社デンソー 空調装置
JP2020189619A (ja) * 2019-05-14 2020-11-26 株式会社デンソー 温熱感調整装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63312217A (ja) * 1987-06-15 1988-12-20 Nissan Motor Co Ltd 車両用空調装置
JPH07117455A (ja) * 1993-10-27 1995-05-09 Nippondenso Co Ltd 自動車用空調装置
JP2006240403A (ja) * 2005-03-01 2006-09-14 Denso Corp 車両用空調装置
JP2020069967A (ja) * 2018-11-01 2020-05-07 株式会社デンソー 車両用空調装置
JP2020128166A (ja) * 2019-02-08 2020-08-27 株式会社デンソー 空調装置
JP2020189619A (ja) * 2019-05-14 2020-11-26 株式会社デンソー 温熱感調整装置

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JP2023028118A (ja) 2023-03-03

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