Air conditioner, air-conditioning control device, and air-conditioning control program

Abstract

To provide an air conditioner, air-conditioning control device, and an air-conditioning control program which can improve safety of a flight body.SOLUTION: An air-condition control part acquires cabin environment information, outside environment information, and flight information at steps S101 - S103 of an air-condition control process. The air-condition control part determines whether a window clouding condition is satisfied or not in a window clouding determination process of the step S104. The air-condition control part uses the cabin environment information, the outside environment information and the flight information for the determination whether the window clouding condition is satisfied or not. When the window clouding condition is not satisfied, the air-condition control part performs inside air mode processing at the step S107. An operation mode of an air-condition system is set to an inside air mode in the inside air mode processing. When the window clouding condition is satisfied, the air-condition control part performs outside air mode processing at the step S108. The operation mode of an air-condition system is set to an outside air mode in the outside air mode processing. The outside air mode sucks outer air into a machine chamber as outside air introduction.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The disclosure in this specification relates to an air conditioner, an air conditioner control device, and an air conditioner control program. [Background technology]

[0002] Patent Document 1 describes an aircraft equipped with an anti-fogging system. In this aircraft, the anti-fogging system prevents fogging of windows such as the windshield. The anti-fogging system prevents fogging of the windows by heating the windows and their surroundings. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-113148 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned Patent Document 1, a dedicated device is required to heat the window and the surrounding area. Therefore, in an aircraft or other flying object not equipped with a dedicated device, there is a concern that the pilot's visibility will be impaired due to the fogging of the window. In this case, the safety of the flying object will be reduced due to the fogging of the window.

[0005] One object of the present disclosure is to provide an air conditioning system, an air conditioning control device, and an air conditioning control program that can improve the safety of an aircraft. [Means for solving the problem]

[0006] The various aspects disclosed in this specification employ different technical means to achieve their respective objectives. The reference symbols in parentheses in the claims and in this section are merely examples showing the correspondence with the specific means described in the embodiments below as one aspect, and do not limit the technical scope.

[0007] In order to achieve the above object, the disclosed embodiment comprises: An air conditioning device (110) provided on an aircraft (10) that flies by an electric propulsion device (100), and that conditions the aircraft by using at least one of internal air and external air of the aircraft, a window fogging determination unit (S104, S302) that determines whether a window fogging condition for fogging the window (16) of the flying object is satisfied; an outside air increasing unit (S108, S602) that increases the amount of introduced outside air (Air2) introduced into the inside of the aircraft when the window fogging condition is met; It is an air conditioning device equipped with the above.

[0008] According to the above air conditioner, when the window fogging condition is met in the flying object, the amount of introduced outside air introduced into the inside of the flying object is increased. In this configuration, the introduction of outside air can prevent the windows of the flying object from fogging up. Furthermore, even if the windows of the flying object are fogging up, the introduction of outside air can reduce the fogging. Therefore, even if the flying object is not provided with a dedicated device for heating the windows, the outside air introduction function of the air conditioner can be used to prevent the pilot's visibility from being impaired by fogging on the windows. In this way, the air conditioner can increase the safety of the flying object.

[0009] The disclosed aspect comprises: An air conditioning control device (150) is provided in an aircraft (10) that flies by an electric propulsion device (100), and controls an air conditioning device (110) that conditions the aircraft by using at least one of the inside air and the outside air of the aircraft, a window fogging determination unit (S104, S302) that determines whether a window fogging condition for fogging the window (16) of the flying object is satisfied; an outside air increasing unit (S108, S602) that increases the amount of introduced outside air (Air2) introduced into the inside of the aircraft when the window fogging condition is met; This is an air conditioning control device equipped with the above.

[0010] According to the air conditioning control device, the safety of the flying object can be improved, similarly to the air conditioner.

[0011] The disclosed aspect comprises: An air conditioning control program (153) for controlling an air conditioning device (110) provided in an aircraft (10) that flies by an electric propulsion device (100) and that conditions the aircraft by using at least one of internal air and external air of the aircraft, At least one processing unit (151) A determination is made as to whether or not a window fogging condition for fogging the window (16) of the aircraft is satisfied (S104, S302); This is an air conditioning control program that increases the amount of outside air (Air2) introduced into the interior of the aircraft when the window fogging condition is met (S108, S602).

[0012] According to the air conditioning control program, the safety of the flying object can be improved, similarly to the air conditioning device. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a diagram showing the configuration of an eVTOL in a first embodiment. [Diagram 2] FIG. 2 is a block diagram showing the electrical configuration of the flight system and the air conditioning system. [Diagram 3] 4 is a flowchart showing the procedure of an air conditioning control process. [Figure 4] 5 is a flowchart showing a procedure for a window fogging determination process. [Diagram 5] 10 is a flowchart showing the procedure of an air conditioning control process in a second embodiment. [Figure 6] 11 is a flowchart showing the procedure of a judgment value correction process. [Figure 7] 5 is a flowchart showing a procedure for a window fogging determination process. [Figure 8] 10 is a flowchart showing the procedure of an air conditioning control process in a third embodiment. [Figure 9] 13 is a flowchart showing the procedure of a window fogging determination process in a fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, a number of embodiments for carrying out the present disclosure will be described with reference to the drawings. In each embodiment, the same reference numerals may be used to designate parts corresponding to matters described in the preceding embodiment, and duplicated descriptions may be omitted. In each embodiment, when only a part of the configuration is described, other embodiments described previously may be applied to other parts of the configuration. In addition to combinations of parts that are specifically indicated as being possible in each embodiment, it is also possible to partially combine embodiments even if not indicated, as long as there is no particular problem with the combination.

[0015] First Embodiment The flight system 30 shown in FIG. 1 is mounted on the eVTOL10. The eVTOL10 is an electric vertical take-off and landing aircraft. The electric vertical take-off and landing aircraft is an electric vertical take-off and landing aircraft, and is capable of vertical take-off and landing. eVTOL is an abbreviation for electric Vertical Take-Off and Landing aircraft. The eVTOL10 is an electric flying object that flies in the atmosphere, and may be referred to as an electric flying object. The eVTOL10 is also an electric aircraft, and may be referred to as an electric aircraft. The eVTOL10 may be either a manned flying object with a crew member on board, or an unmanned flying object without a crew member on board. The eVTOL10 is operated by a pilot as a pilot. The pilot may operate the eVTOL10 as a crew member, or may remotely operate the eVTOL10 without riding the eVTOL10. The flight system 30 is a system that drives the eVTOL10 to fly. The flight system 30 may be referred to as a propulsion system. Crew members are sometimes referred to as passengers.

[0016] The eVTOL 10 has an airframe 11 and a rotor 20. The airframe 11 has an airframe main body 12 and wings 13. The airframe main body 12 is the fuselage of the airframe 11 and has a shape that extends, for example, in the front-to-rear direction. The airframe main body 12 has a passenger compartment for passengers to ride in. The wings 13 extend from the airframe main body 12 and multiple wings 13 are provided on the airframe main body 12. The wings 13 are fixed wings. The multiple wings 13 include main wings, a tail, etc.

[0017] The eVTOL 10 has a cabin 15 and a window 16. The cabin 15 is provided inside the eVTOL 10. For example, the cabin 15 is an internal space of the aircraft body 12, and is formed by the aircraft body 12. The cabin 15 may be a crew cabin or a cargo bay. The crew cabin has a space in which the crew ride. The crew cabin may be a passenger cabin or a pilot cabin. The passenger cabin is a space in which passengers ride. The pilot cabin is a space in which the pilot rides.

[0018] The window 16 is provided in the cabin 15. A plurality of the windows 16 are arranged along the outer surface of the aircraft body 12. The window 16 has a window opening and a window panel. The window opening is an opening provided in the aircraft body 12. The window panel is provided in the window opening. The window panel is formed from a glass material, a resin material, or the like. The window panel is window glass, or the like. The window 16 may be a window that can be opened or closed, or may be a window that cannot be opened or closed.

[0019] A plurality of rotors 20 are provided on the airframe 11. The eVTOL 10 is a multicopter having at least three rotors 20. For example, at least four rotors 20 are provided on the airframe 11. The rotors 20 are provided on each of the airframe body 12 and the wings 13. The rotors 20 rotate about the rotor axis. The rotor axis is, for example, the center line of the rotor 20. The rotors 20 are rotating wings, and are capable of generating at least one of thrust and lift for the eVTOL 10. The rotors 20 are also sometimes referred to as propellers.

[0020] The rotor 20 has blades 21 and a rotor head 22. A plurality of blades 21 are arranged in the circumferential direction of the rotor axis. The rotor head 22 connects the plurality of blades 21. The rotor 20 has a rotor shaft (not shown). The rotor shaft is a rotating shaft of the rotor 20, and extends from the rotor head 22 along the rotor axis.

[0021] The flight modes of the eVTOL 10 include vertical takeoff, vertical landing, cruising, hovering, etc. The eVTOL 10 can take off from a takeoff point by ascending vertically without running, for example, as a vertical takeoff. The eVTOL 10 can land at a landing point by descending vertically, for example, as a vertical landing, without running.

[0022] The flight behavior of the eVTOL 10 also includes lift. In lift, the eVTOL 10 moves in the up and down directions. For example, lift includes the eVTOL 10 ascending in the vertical direction and the eVTOL 10 descending in the vertical direction. The eVTOL 10 lifts upward when taking off vertically. The eVTOL 10 lifts downward when landing vertically.

[0023] The eVTOL10 is a tilt rotor aircraft. In the eVTOL10, the rotor 20 can be tilted. That is, the tilt angle of the rotor 20 can be adjusted. For example, when the eVTOL10 ascends, the orientation of the rotor 20 is set so that the rotor axis extends in the vertical direction. In this case, the rotor 20 functions as a lift rotor for lifting the eVTOL10. The rotor 20 also functions as a hovering rotor for hovering the eVTOL10. The hovering rotor is sometimes called a hover rotor.

[0024] The eVTOL 10 has a tilt mechanism (not shown). The tilt mechanism includes a motor and is driven to adjust the tilt angle of the rotor 20. The tilt mechanism is sometimes referred to as a tilt drive unit. For example, in the eVTOL 10, the wing 13 can be tilted relative to the aircraft body 12. That is, the rotor 20 can be tilted together with the wing 13. In the eVTOL 10, the tilt angle of the rotor 20 is adjusted by adjusting the tilt angle of the wing 13 relative to the aircraft body 12. In the eVTOL 10, the mechanism for adjusting the tilt angle of the wing 13 is the tilt mechanism.

[0025] Note that in the eVTOL 10, the rotor 20 may be able to tilt relative to the airframe 11. For example, the tilt angle of the rotor 20 may be adjusted by adjusting the inclination angle of the rotor 20 relative to the wing 13.

[0026] 1 and 2, the flight system 30 has a battery 31, a distributor 32, a flight control unit 40, and an EPU 50. The flight control unit 40 has a processor 41, a memory 42, and a program 43. In Fig. 2, the battery 31 is illustrated as BT, the distributor 32 as DTB, the flight control unit 40 as FCD, the processor 41 as PRO, the memory 42 as MEM, and the program 43 as PG.

[0027] The EPU 50 is a device that drives the rotor 20 to rotate, and corresponds to a drive device. EPU is an abbreviation for Electric Propulsion Unit. The EPU 50 is sometimes referred to as an electric drive device. An EPU 50 is provided individually for each of the multiple rotors 20. The EPUs 50 are arranged on the rotors 20 along the rotor axis. The EPU 50 is fixed to the airframe 11. The EPU 50 supports the rotor 20 so that it can rotate. The EPU 50 is connected to the rotor 20.

[0028] The rotor 20 is fixed to the airframe 11 via the EPU 50. The EPU 50 is configured to not tilt relative to the rotor 20. The EPU 50 is capable of tilting together with the rotor 20. When the tilt angle of the rotor 20 is adjusted, the orientation of the EPU 50 is set together with the rotor 20.

[0029] As shown in FIG. 1, the EPU 50 has a motor device 60 and an inverter device 80. The motor device 60 has a motor 61. In the motor device 60, the motor 61 is accommodated in a motor housing. The motor 61 is a multi-phase AC motor, for example, a three-phase or six-phase AC rotating electric machine. The motor 61 is a flight drive source for the eVTOL 10, and functions as an electric motor. The motor 61 can fly the eVTOL 10 by driving and rotating the rotor 20. The motor 61 is a flight motor for flying the eVTOL 10. The motor 61 is driven by the power of the battery 31. The EPU 50 drives and rotates the rotor 20 by driving the motor 61. For example, a brushless motor is used as the motor 61.

[0030] The motor 61 has a motor stator, a motor rotor, and a motor shaft. The motor shaft is driven to rotate relative to the motor stator together with the motor rotor. The motor shaft is connected to the rotor shaft and rotates together with the rotor shaft. The motor device 60 is capable of driving the rotor 20 to rotate in accordance with the driving rotation of the motor 61. The motor rotor rotates about the motor axis. The motor axis is the center line of the motor 61. In the EPU 50, the motor device 60 and the inverter device 80 are arranged along the motor axis.

[0031] The inverter device 80 has an inverter circuit 81. In the inverter device 80, the inverter circuit 81 is accommodated in an inverter housing. The inverter circuit 81 drives the motor 61 by converting the power supplied to the motor 61. The inverter circuit 81 is sometimes referred to as a drive unit. The inverter circuit 81 converts the power supplied to the motor 61 from direct current to alternating current. The inverter circuit 81 is a power conversion unit that converts power. The inverter circuit 81 is a multi-phase power conversion unit that performs power conversion for each of the multiple phases. The inverter circuit 81 is, for example, a three-phase inverter, and is sometimes simply referred to as an inverter. The motor 61 is driven according to the voltage and current supplied from the inverter circuit 81.

[0032] The inverter device 80 has an inverter control unit. The inverter control unit performs motor control via the inverter circuit 81. The inverter control unit controls the motor 61 by controlling the inverter circuit 81. The inverter control unit is electrically connected to the flight control unit 40, and performs motor control in response to a signal from the flight control unit 40.

[0033] The battery 31 is connected to the EPU 50 so that it can be electrically connected thereto. The battery 31 is a power supply unit that supplies power to the EPU 50, and corresponds to a power supply unit. The battery 31 is a DC voltage source that applies a DC voltage to the EPU 50. The battery 31 has a secondary battery that can be charged and discharged. Examples of this secondary battery include a lithium ion battery and a nickel-metal hydride battery. Note that a fuel cell, a generator, or the like may be used as the power supply unit in addition to or instead of the battery 31. The battery 31 is capable of storing power, and corresponds to a power storage device.

[0034] The distributor 32 is electrically connected to the battery 31 and the multiple EPUs 50. The distributor 32 distributes power from the battery 31 to the multiple EPUs 50. The battery 31 is electrically connected to the multiple EPUs 50 via the distributor 32. The battery 31 supplies power to the EPU 50 via the distributor 32.

[0035] The eVTOL 10 has a propulsion device 100. The propulsion device 100 has a rotor 20 and an EPU 50. The propulsion device 100 is capable of propelling the eVTOL 10 by the EPU 50 driving and rotating the rotor 20. The propulsion device 100 is capable of flying the eVTOL 10 by being driven by power from a battery 31. The propulsion device 100 is an electrically powered device. The propulsion device 100 is a device in which the rotor 20 and the EPU 50 are integrated.

[0036] The flight control unit 40 shown in FIG. 2 is, for example, an ECU, and performs flight control for flying the eVTOL 10. The flight control unit 40 is a control device that controls the flight system 30. For example, the flight control unit 40 controls the EPU 50 and the propulsion unit 100. ECU is an abbreviation for Electronic Control Unit. The flight control unit 40 is mainly configured with a computer. This computer has a processor 41, a memory 42, an input / output interface, a bus connecting these, etc. A program 43 is stored in the memory 42. The program 43 is a flight control program for performing flight control.

[0037] The processor 41 is hardware for arithmetic processing coupled to the memory 42. The processor 41 executes various processes such as flight control processing by accessing the memory 42. The memory 42 is a storage medium that stores programs and the like. For example, the memory 42 is a non-transitory tangible storage medium that non-temporarily stores computer-readable programs and data. The non-transitory tangible storage medium is a non-transitory tangible storage medium, and is realized by a semiconductor memory, a magnetic disk, or the like. The program 43 includes computer-readable instructions that cause the processor 41 to execute various functions. The processor 41 is a processing unit that executes predetermined processing by executing instructions included in the program in the memory 42.

[0038] The flight control unit 40 is electrically connected to the EPU 50. The flight control unit 40 performs flight control in accordance with the detection results of various sensors. This flight control includes propulsion control for driving the propulsion device 100. The propulsion control includes EPU control and motor control for driving the EPU 50 and the motor 61.

[0039] The eVTOL 10 shown in FIG. 2 has an air conditioning system 110. The air conditioning system 110 conditions the eVTOL 10. The air conditioning system 110 generates conditioned air using at least one of inside air and outside air, and conditions the eVTOL 10 with the conditioned air. For example, the air conditioning system 110 conditions the cabin 15 by supplying the conditioned air to the cabin 15. The air conditioning system 110 is capable of cooling and heating the cabin 15. The conditioned air may be air whose temperature is adjusted for inside air or outside air, or air whose temperature is not adjusted for inside air or outside air. The air conditioning system 110 corresponds to an air conditioner.

[0040] The indoor air is air inside the aircraft 11. For example, the indoor air is air in the cabin 15. The outdoor air is air outside the aircraft 11. The conditioned air is air for conditioning the eVTOL 10. The air conditioning system 110 takes in at least one of the indoor air and the outdoor air, and generates conditioned air by adjusting the temperature, etc., of at least one of the indoor air and the outdoor air.

[0041] The air conditioning system 110 has an inside air inlet 135, an outside air inlet 136, and an air conditioning outlet 137. The inside air inlet 135 is an opening for drawing in inside air. The inside air inlet 135 is provided in the cabin 15 and draws in inside air from the cabin 15. The outside air inlet 136 is an opening for drawing in outside air. The outside air inlet 136 is provided on the outside of the aircraft body 11 and draws in outside air from outside the aircraft body 11. The air conditioning outlet 137 is an opening for blowing out conditioned air. The air conditioning outlet 137 is provided in the cabin 15 and blows out conditioned air into the cabin 15.

[0042] In the air conditioning system 110, conditioned air Air3 is generated using at least one of the intake indoor air Air1 and the intake outdoor air Air2. The intake indoor air Air1 is indoor air sucked in from the indoor air inlet 135. The intake indoor air Air1 is indoor air taken into the air conditioning system 110. The air conditioning system 110 is capable of performing indoor air circulation. In the indoor air circulation, indoor air including the intake indoor air Air1 circulates between the cabin 15 and the air conditioning system 110. When the indoor air circulation is being performed, the air conditioning system 110 generates conditioned air Air3 using the intake indoor air Air1.

[0043] The intake outside air Air2 is outside air drawn in from the outside air inlet 136. The intake outside air Air2 is outside air introduced into the air conditioning system 110. The air conditioning system 110 is capable of introducing outside air. In the introduction of outside air, the outside air taken into the air conditioning system 110 is introduced into the cabin 15 as the intake outside air Air2. That is, the outside air is introduced into the cabin 15 via the air conditioning system 110. The intake outside air Air2 corresponds to introduced outside air. When the introduction of outside air is being performed, the air conditioning system 110 generates conditioned air Air3 using the intake outside air Air2.

[0044] In this embodiment, only one of the inside air circulation and the outside air introduction is performed. For example, when the inside air circulation is performed, the outside air introduction is stopped. On the other hand, when the outside air introduction is performed, the inside air circulation is stopped. Note that the air conditioning system 110 may perform both the inside air circulation and the outside air introduction.

[0045] The air conditioning system 110 is electrically connected to the battery 31. The air conditioning system 110 is driven by power supplied from the battery 31. The battery 31 supplies power to the air conditioning system 110 in addition to the multiple EPUs 50. The air conditioning system 110 has a compression cycle device 111. The compression cycle device 111 generates conditioned air from at least one of the inside air and the outside air through a compression cycle. In the air conditioning system 110, the conditioned air may be generated through a refrigeration cycle or a heat pump cycle.

[0046] The compression cycle device 111 has a refrigerant flow path 120, a compressor 121, an outdoor heat exchanger 122, an outdoor fan 123, an indoor heat exchanger 125, and a blower 126. In Fig. 2, the compressor 121 is illustrated as COMP, the outdoor heat exchanger 122 as CON, the outdoor fan 123 as FAN, the indoor heat exchanger 125 as EVA, and the blower 126 as BLOW.

[0047] The refrigerant flow path 120 is a flow path through which the refrigerant flows so as to circulate. The compressor 121 is an electrically-driven compressor. The compressor 121 compresses the refrigerant flowing through the refrigerant flow path 120, and causes the compressed refrigerant to flow through the refrigerant flow path 120. The compressor 121 is driven by electric power supplied from the battery 31.

[0048] The outdoor heat exchanger 122 is provided outside the cabin 15. The outdoor heat exchanger 122 exchanges heat between the refrigerant and the outside of the cabin 15. For example, the outdoor heat exchanger 122 exchanges heat between the refrigerant and outside air. The outdoor fan 123 is a blower fan capable of blowing air. The outdoor fan 123 blows air so as to promote heat exchange of the refrigerant by the outdoor heat exchanger 122. The outdoor heat exchanger 122 functions as a condenser during cooling operation of the air conditioning system 110. A condenser is sometimes called a condenser.

[0049] The indoor heat exchanger 125 is provided inside the cabin 15. The indoor heat exchanger 125 exchanges heat between the refrigerant and the conditioned air. For example, the indoor heat exchanger 125 exchanges heat between the refrigerant and at least one of the intake indoor air Air1, the intake outdoor air Air2, and the conditioned air Air3. The indoor heat exchanger 125 can change the temperature of the conditioned air Air3 by using the heat of the refrigerant. The blower 126 is a sending fan capable of blowing air. The blower 126 supplies the conditioned air Air3 to the cabin 15. The conditioned air Air3 is blown out of the cabin 15 from the air conditioning outlet 137 by the blowing of the blower 126. The indoor heat exchanger 125 functions as an evaporator during cooling operation of the air conditioning system 110. An evaporator is sometimes called an evaporator.

[0050] The air conditioning system 110 has an intake switching unit 127. The intake switching unit 127 can adjust the amount of each of the indoor air and outdoor air taken into the air conditioning system 110. The intake switching unit 127 can be switched between an indoor air state, an outdoor air state, and a mixed state. When the intake switching unit 127 is in the indoor air state, only the intake indoor air Air1 of the intake indoor air Air1 and the intake outdoor air Air2 is taken into the air conditioning system 110. When the intake switching unit 127 is in the outdoor air state, only the intake outdoor air Air2 of the intake indoor air Air1 and the intake outdoor air Air2 is taken into the air conditioning system 110. When the intake switching unit 127 is in the mixed state, both the intake indoor air Air1 and the intake outdoor air Air2 are taken into the air conditioning system 110.

[0051] The air conditioning system 110 includes an energy storage device 130. The energy storage device 130 stores thermal energy for air conditioning the cabin 15. The thermal energy stored in the energy storage device 130 can heat or cool the conditioned air. The air conditioning system 110 can heat or cool the cabin 15 using the thermal energy stored in the energy storage device 130 without driving the compression cycle device 111.

[0052] The energy storage device 130 has a heat storage section 131 and a cold storage section 132. The heat storage section 131 is capable of storing heat. The heat storage section 131 stores thermal energy for heating the cabin 15. The heat storage section 131 has, for example, a high temperature section and a heat insulating section. In the heat storage section 131, the high temperature section is kept warm by the heat insulating section. The cold storage section 132 is capable of storing cold. The cold storage section 132 stores thermal energy for cooling the cabin 15. The cold storage section 132 has, for example, a low temperature section and a heat insulating section. In the cold storage section 132, the low temperature section is kept cold by the heat insulating section. The energy storage device 130 may have a section capable of storing both heat and cold.

[0053] The air conditioning system 110 has an air conditioning unit 140. The air conditioning unit 140 has a unit case 141. The unit case 141 houses a plurality of devices and equipment that constitute the air conditioning system 110. The air conditioning unit 140 unitizes the plurality of devices and equipment by the unit case 141. The air conditioning unit 140 is, for example, an HVAC (Heating, Ventilation, and Air Conditioning) unit. For example, the air conditioning unit 140 is provided with at least a portion of the air conditioning unit 140 embedded in the inner wall surface of the cabin 15.

[0054] The air conditioning unit 140 includes an indoor heat exchanger 125, a blower 126, an intake switching section 127, an energy storage device 130, an indoor air intake port 135, an outdoor air intake port 136, and an air conditioning outlet port 137. The indoor heat exchanger 125, the blower 126, the intake switching section 127, and the energy storage device 130 are housed in a unit case 141. The indoor air intake port 135, the outdoor air intake port 136, and the air conditioning outlet port 137 are provided in the unit case 141. In the air conditioning system 110, intake indoor air Air1 and intake outdoor air Air2 are introduced into the unit case 141. The conditioned air Air3 is generated in the air conditioning unit 140.

[0055] The air conditioning system 110 has an air conditioning control unit 150. The air conditioning control unit 150 controls the air conditioning system 110. The air conditioning control unit 150 corresponds to an air conditioning control device. The air conditioning control unit 150 has a processor 151, a memory 152, and a program 153. In FIG. 2, the suction switching unit 127 is illustrated as an ISP, the heat storage unit 131 as an HSD, and the cold storage unit 132 as a CSD. In addition, the air conditioning control unit 150 is illustrated as an ACD, the processor 151 as a PRO, the memory 152 as a MEM, and the program 153 as a PG.

[0056] The air conditioning control unit 150 is, for example, an ECU, and performs air conditioning control to perform air conditioning for the eVTOL 10. The air conditioning control unit 150 is a control device that controls the air conditioning system 110. For example, the air conditioning control unit 150 controls the compression cycle device 111 and the suction switching unit 127. The air conditioning control unit 150 is mainly configured with a computer. This computer has a processor 151, a memory 152, an input / output interface, a bus connecting these, etc. A program 153 is stored in the memory 152. The program 153 is an air conditioning control program for performing air conditioning control.

[0057] The processor 151 is hardware for arithmetic processing coupled to the memory 152. The processor 151 executes various processes such as air conditioning control processing by accessing the memory 152. The memory 152 is a storage medium that stores programs and the like. For example, the memory 152 is a non-transient tangible storage medium that non-temporarily stores computer-readable programs and data. The program 153 includes computer-readable instructions that cause the processor 151 to execute various functions. The processor 151 is a processing unit that executes predetermined processing by executing instructions included in the program in the memory 152.

[0058] The air conditioning control unit 150 is communicatively connected to the flight control unit 40, the compression cycle device 111, and the suction switching unit 127. The air conditioning control unit 150 performs air conditioning control according to information from the flight control unit 40 and detection results of various sensors. The air conditioning control includes control of the compression cycle device 111 and control of the suction switching unit 127. The control of the suction switching unit 127 includes control to switch between inside air circulation and outside air introduction.

[0059] The eVTOL 10 has various sensors, including an inside air sensor 161, an outside air sensor 165, and an air pressure sensor 166. The sensors 161, 165, and 166 are communicatively connected to the air conditioning control unit 150. The sensors 161, 165, and 166 output detection signals to the air conditioning control unit 150. The air conditioning control unit 150 acquires detection values ​​of the sensors 161, 165, and 166 using the detection signals of the sensors 161, 165, and 166.

[0060] The inside air sensor 161 is a sensor that detects the state of the inside air. The inside air sensor 161 outputs a detection signal according to the state of the inside air. For example, the inside air sensor 161 detects the state of air in the cabin 15 as the state of the inside air. The inside air sensor 161 is provided in the cabin 15. The inside air sensor 161 is at least one sensor. The inside air sensor 161 may be an inside air temperature sensor, an inside air humidity sensor, a CO2 sensor, or the like.

[0061] The inside air temperature sensor is a sensor that detects the inside air temperature. The inside air temperature sensor outputs a detection signal corresponding to the inside air temperature. The inside air temperature is the temperature of the inside air, for example, the temperature of the cabin 15. The inside air humidity sensor is a sensor that detects the inside air humidity. The inside air humidity is the humidity of the inside air, for example, the humidity of the cabin 15. The CO2 sensor is a sensor that detects the CO2 concentration. The CO2 sensor outputs a detection signal corresponding to the CO2 concentration in the cabin 15. The CO2 concentration is the concentration of carbon dioxide.

[0062] The air pressure sensor 166 is a sensor that detects air pressure. The air pressure sensor 166 outputs a detection signal according to the air pressure. The outside air sensor 165 is a sensor that detects the state of the outside air. The outside air sensor 165 outputs a detection signal according to the state of the outside air. For example, the outside air sensor 165 detects the state of the atmosphere around the aircraft body 11 as the state of the outside air. The outside air sensor 165 is provided outside the cabin 15. The outside air sensor 165 is at least one sensor. The outside air sensor 165 includes an outside air temperature sensor and an air quality sensor.

[0063] The outside air temperature sensor is a sensor that detects the outside air temperature. The outside air temperature sensor outputs a detection signal according to the outside air temperature. The outside air temperature is the temperature of the outside air, for example, the outside temperature of the eVTOL 10. The air quality sensor is a sensor that detects the air quality. The air quality sensor outputs a detection signal according to the air quality. The air quality sensor detects the air quality around the aircraft 11 as the outside air quality. The air quality sensor can detect air pollution conditions such as smog. For example, the air quality sensor can detect the concentration of pollutants such as particulate matter in the atmosphere. For example, the higher the concentration of pollutants, the worse the outside air quality and the more polluted the outside air is. In addition, the air quality sensor can detect the odor of the outside air. For example, the stronger the odor, the worse the outside air quality and the more polluted the outside air is.

[0064] The air conditioning control process in the eVTOL 10 will be described with reference to the flowchart in Fig. 3. The air conditioning control unit 150 repeatedly executes the air conditioning control process at a predetermined control period. The air conditioning control unit 150 has a function of executing the processing of each step of the air conditioning control process.

[0065] The air conditioning control unit 150 acquires cabin environment information in step S101 shown in FIG. 3. The cabin environment information is information indicating the internal environment of the eVTOL 10. The internal environment of the eVTOL 10 is sometimes referred to as the cabin environment. The cabin environment information corresponds to the internal environment information. The cabin environment information includes information indicating the environment of the cabin 15. The cabin environment information includes the inside air temperature, inside air humidity, CO2 concentration, and the presence or absence of a passenger in the cabin 15. The air conditioning control unit 150 acquires the inside air temperature, inside air humidity, and CO2 concentration using a detection signal from the inside air sensor 161. The air conditioning control unit 150 acquires information including the presence or absence of a passenger and the number of passengers from the flight control unit 40, etc. The air conditioning control unit 150 may also acquire the inside air temperature, inside air humidity, and CO2 concentration from the flight control unit 40.

[0066] In step S102, the air conditioning control unit 150 acquires outside-aircraft environment information. The outside-aircraft environment information is information indicating the external environment of the eVTOL 10. The external environment of the eVTOL 10 is sometimes referred to as the outside-aircraft environment. The outside-aircraft environment information corresponds to external environment information. Examples of the outside-aircraft environment information include outside air temperature and air pressure. The air conditioning control unit 150 acquires the outside air temperature, outside air quality, outside air odor, air pressure, and the like, using detection signals from the outside air sensor 165 and the air pressure sensor 166. The air conditioning control unit 150 may acquire the outside-aircraft environment information from the flight control unit 40, etc.

[0067] In step S103, the air conditioning control unit 150 acquires flight information. The flight information is information that indicates the flight status of the eVTOL 10. The flight information includes information on the vertical takeoff and vertical landing, lift, altitude, ascent, descent, and flight schedule of the eVTOL 10. The air conditioning control unit 150 acquires the flight information from the flight control unit 40, etc.

[0068] In step S104, the air conditioning control unit 150 performs a window fogging determination process. In the window fogging determination process, it is determined whether or not fogging occurs on the window 16. Fogging of the window 16 occurs due to condensation adhering to the window panel. In the window 16, the window panel becomes foggy due to condensation adhering to the window panel. At least one of internal fogging and external fogging may occur on the window 16. In internal fogging, fogging occurs on the inner surface of the window 16. For example, in internal fogging, fogging occurs due to condensation adhering to the surface of the window panel facing the cabin 15. In external fogging, fogging occurs on the outer surface of the window 16. For example, in external fogging, fogging occurs due to condensation adhering to the surface of the window panel facing the exterior. Fogging of the window 16 is sometimes referred to as window fogging.

[0069] In the window fogging determination process, the air conditioning control unit 150 determines whether or not fogging will occur on the window 16 by determining whether or not a window fogging condition is established. The window fogging condition is a condition for fogging to occur on the window 16. In the window fogging determination process, a determination is made individually for each of a plurality of window fogging conditions. When at least one window fogging condition is established, the air conditioning control unit 150 determines that fogging is likely to occur on the window 16. The air conditioning control unit 150 determines the likelihood of window fogging by determining whether or not a window fogging condition is established. The function of the air conditioning control unit 150 that executes the process of step S104 corresponds to the window fogging determination unit.

[0070] The window fogging determination process will be described with reference to the flowchart in Fig. 4. In steps S201 to S204 of the window fogging determination process, the air conditioning control unit 150 uses flight information to determine whether or not the window fogging condition is met. The function of the air conditioning control unit 150 to execute the processes of steps S201 to S204 corresponds to a flight determination unit.

[0071] In step S201, the air conditioning control unit 150 uses the flight information to determine whether the eVTOL 10 will take off vertically. If the eVTOL 10 will take off vertically, the air conditioning control unit 150 determines that the window fogging condition is met. The vertical takeoff of the eVTOL 10 corresponds to the window fogging condition. The eVTOL 10 may take off vertically when the eVTOL 10 is preparing for vertical takeoff or when the eVTOL 10 is taking off vertically. The function of the air conditioning control unit 150 that executes the process of step S201 corresponds to the takeoff determination unit.

[0072] In step S202, the air conditioning control unit 150 uses the flight information to determine whether the eVTOL 10 will make a vertical landing. If the eVTOL 10 will make a vertical landing, the air conditioning control unit 150 determines that the window fogging condition is met. The vertical landing of the eVTOL 10 corresponds to the window fogging condition. The eVTOL 10 may make a vertical landing when the eVTOL 10 is preparing for a vertical landing, when the eVTOL 10 is in the middle of a vertical landing, and the like. The function of the air conditioning control unit 150 that executes the processing of step S202 corresponds to the landing determination unit.

[0073] In step S203, the air conditioning control unit 150 determines whether the flight altitude P1 is higher than a first judgment value J1. The flight altitude P1 is the altitude at which the eVTOL 10 is flying. The air conditioning control unit 150 acquires the flight altitude P1 from the flight information. The flight altitude P1 is included in the flight information. The first judgment value J1 is set to a value indicating that the flight altitude P1 is high enough to cause fogging on the windows 16. The first judgment value J1 is set to, for example, several tens of meters to several hundreds of meters. The first judgment value J1 is a value determined in advance by testing or the like, and is stored in the memory 152 or the like.

[0074] If the flight altitude P1 is higher than the first judgment value J1, the air conditioning control unit 150 proceeds to step S204. In step S204, the air conditioning control unit 150 judges whether the lift speed P2 is faster than the second judgment value J2. The air conditioning control unit 150 acquires the lift speed P2 from flight information such as lift information. The lift speed P2 is included in the flight information. The lift speed P2 is the speed at which the eVTOL 10 lifts. The lift speed P2 is the distance that the eVTOL 10 moves in the vertical direction per unit time. The lift speed P2 includes an ascent speed and a descent speed. The ascent speed is the speed at which the eVTOL 10 ascends. The descent speed is the speed at which the eVTOL 10 descends. The second judgment value J2 is set to a value indicating that the lift speed P2 is fast enough to cause fogging on the window 16. The second judgment value J2 is a value determined in advance by testing or the like, and is stored in the memory 152 or the like.

[0075] When the flight altitude P1 is higher than the first judgment value J1 and the lift speed P2 is faster than the second judgment value J2, the air conditioning control unit 150 judges that the window fogging condition is established. The flight altitude P1 is higher than the first judgment value J1 and the lift speed P2 is faster than the second judgment value J2 corresponds to the window fogging condition. The flight altitude P1 and the lift speed P2 are parameters related to the window fogging condition and correspond to the window fogging parameters. The first judgment value J1 and the second judgment value J2 are judgment values ​​for judging whether the window fogging condition is established or not and correspond to the window fogging judgment values.

[0076] The air conditioning control unit 150 compares the flight altitude P1 with the first judgment value J1. The judgment result of whether or not the flight altitude P1 is higher than the first judgment value J1 corresponds to the comparison result of the window fogging parameter with the window fogging judgment value. The air conditioning control unit 150 compares the lift speed P2 with the second judgment value J2. The judgment result of whether or not the lift speed P2 is faster than the second judgment value J2 corresponds to the comparison result of the window fogging parameter with the window fogging judgment value. The function of executing the processes of steps S203 and S204 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0077] If the window fogging condition is met in steps S201 to S204, the air conditioning control unit 150 proceeds to step S214 and performs a condition satisfaction process. In the condition satisfaction process, the fact that the window fogging condition is met is stored in the memory 152, etc. For example, the air conditioning control unit 150 sets a condition satisfaction flag indicating that the window fogging condition is met in the memory 152, etc. In addition, the air conditioning control unit 150 clears a condition non-satisfaction flag, which will be described later.

[0078] The air conditioning control unit 150 may determine whether the window fogging condition is satisfied for each of steps S203 and S204 individually. For example, when the flight altitude P1 is higher than the first judgment value J1 in step S203, the air conditioning control unit 150 determines that the window fogging condition is satisfied, and performs the condition satisfaction process in step S214. Also, when the lift speed P2 is faster than the second judgment value J2 in step S204, the air conditioning control unit 150 determines that the window fogging condition is satisfied, and performs the condition satisfaction process in step S214.

[0079] In step S201, if the eVTOL 10 takes off vertically, the air conditioning control unit 150 performs a condition satisfaction process in step S214. In step S202, if the eVTOL 10 lands vertically, the air conditioning control unit 150 performs a condition satisfaction process in step S214. In steps S203 and S204, if the flight altitude P1 is higher than the first determination value J1 and the lift speed P2 is faster than the second determination value J2, the air conditioning control unit 150 performs a condition satisfaction process in step S214.

[0080] If the window fogging condition is not met in steps S201 to S204, the air conditioning control unit 150 uses the outside environment information to determine whether or not the window fogging condition is met in steps S205 and S206. The function of the air conditioning control unit 150 that executes the processes in steps S205 and S206 corresponds to an external determination unit.

[0081] In step S205, the air conditioning control unit 150 determines whether the air pressure change rate P3 is faster than the third determination value J3. When the eVTOL 10 is flying and moving, the air pressure outside the eVTOL 10 may change as the eVTOL 10 moves. The air pressure change rate P3 is the rate at which the air pressure outside the eVTOL 10 changes. For example, the air pressure change rate P3 is the amount of change in the air pressure outside the eVTOL 10 per unit time. The air conditioning control unit 150 acquires the air pressure from the external environment information and calculates the air pressure change rate P3 using this air pressure. The air pressure change rate P3 is included in the external environment information. The third determination value J3 is set to a value indicating that the air pressure changes in a short time so that the window 16 becomes cloudy. In other words, the third determination value J3 is set to a value indicating that the air pressure change rate P3 indicates that the flight altitude P1 changes in a short time so that the window 16 becomes cloudy. The third judgment value J3 is a value that is determined in advance through testing or the like, and is stored in the memory 152 or the like.

[0082] If the air pressure change rate P3 is faster than the third judgment value J3, the air conditioning control unit 150 determines that the window fogging condition is established. The air pressure change rate P3 being faster than the third judgment value J3 corresponds to the window fogging condition. The air pressure change rate P3 is a parameter related to the window fogging condition, and corresponds to the window fogging parameter. The third judgment value J3 is a judgment value for judging whether the window fogging condition is established, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the air pressure change rate P3 with the third judgment value J3. The judgment result of whether the air pressure change rate P3 is faster than the third judgment value J3 corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the process of step S205 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0083] In step S206, the air conditioning control unit 150 determines whether the outside air temperature change rate P4 is faster than the fourth judgment value J4. When the eVTOL 10 is flying and moving, the outside air temperature may change as the eVTOL 10 moves. The outside air temperature change rate P4 is the rate at which the outside air temperature outside the eVTOL 10 changes. For example, the outside air temperature change rate P4 is the amount of change per unit time of the outside air temperature outside the eVTOL 10. The air conditioning control unit 150 acquires the outside air temperature from the outside air environment information, and calculates the outside air temperature change rate P4 using this outside air temperature. The outside air temperature change rate P4 is included in the outside air environment information. The fourth judgment value J4 is set to a value indicating that the outside air temperature changes in a short time so that the window 16 becomes cloudy. In other words, the fourth judgment value J4 is set to a value indicating that the outside air temperature change rate P4 indicates that the flight altitude P1 changes in a short time so that the window 16 becomes cloudy. The fourth judgment value J4 is a value that is determined in advance through testing or the like, and is stored in the memory 152 or the like.

[0084] When the outside air temperature change rate P4 is faster than the fourth judgment value J4, the air conditioning control unit 150 judges that the window fogging condition is established. The outside air temperature change rate P4 being faster than the fourth judgment value J4 corresponds to the window fogging condition. The outside air temperature change rate P4 is a parameter related to the window fogging condition, and corresponds to the window fogging parameter. The fourth judgment value J4 is a judgment value for judging whether the window fogging condition is established, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the outside air temperature change rate P4 with the fourth judgment value J4. The judgment result of whether the outside air temperature change rate P4 is faster than the fourth judgment value J4 corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the process of step S206 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0085] If the window fogging condition is met in steps S205 and S206, the air conditioning control unit 150 performs a condition satisfaction process in step S214. For example, if the air pressure change rate P3 is faster than the third determination value J3 in step S205, the air conditioning control unit 150 performs a condition satisfaction process in step S214. If the outside air temperature change rate P4 is faster than the fourth determination value J4 in step S206, the air conditioning control unit 150 performs a condition satisfaction process in step S214.

[0086] If the window fogging condition is not met in steps S201 to S206, the air conditioning control unit 150 uses the in-aircraft environment information to determine whether the window fogging condition is met or not in steps S207 to S210. The function of the air conditioning control unit 150 that executes the processes in steps S207 to S210 corresponds to an internal determination unit.

[0087] In step S207, the air conditioning control unit 150 determines whether the inside air humidity P5 is higher than a fifth judgment value J5. The air conditioning control unit 150 acquires the inside air humidity P5 from the inside air environment information. The inside air humidity P5 is included in the inside air environment information. The fifth judgment value J5 is set to a value indicating that the inside air humidity P5 is high enough to cause fogging on the window 16. The fifth judgment value J5 is a value determined in advance by testing or the like, and is stored in the memory 152 or the like.

[0088] When the inside air humidity P5 is higher than the fifth judgment value J5, the air conditioning control unit 150 judges that the window fogging condition is established. The inside air humidity P5 being higher than the fifth judgment value J5 corresponds to the window fogging condition. The inside air humidity P5 is a parameter related to the window fogging condition, and corresponds to the window fogging parameter. The fifth judgment value J5 is a judgment value for judging whether the window fogging condition is established or not, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the inside air humidity P5 with the fifth judgment value J5. The judgment result of whether the inside air humidity P5 is higher than the fifth judgment value J5 or not corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the process of step S207 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0089] In step S208, the air conditioning control unit 150 determines whether the CO2 concentration P6 is higher than the sixth judgment value J6. The air conditioning control unit 150 acquires the CO2 concentration P6 from the cabin environment information. The CO2 concentration P6 is included in the cabin environment information. In the eVTOL 10, if the introduction of outside air into the cabin 15 is insufficient, the CO2 concentration P6 is likely to become high. Also, if the introduction into the cabin 15 is insufficient, the window 16 is likely to become cloudy. Therefore, it can be said that the higher the CO2 concentration P6, the more likely the window 16 is to become cloudy. The sixth judgment value J6 is set to a value indicating that the CO2 concentration P6 is high enough to cause clouding of the window 16. The sixth judgment value J6 is also a value indicating that the introduction of outside air into the cabin 15 is insufficient enough to cause clouding of the window. The sixth judgment value J6 is a value determined in advance by testing or the like, and is stored in the memory 152 or the like.

[0090] When the CO2 concentration P6 is higher than the sixth judgment value J6, the air conditioning control unit 150 judges that the window fogging condition is established. The CO2 concentration P6 being higher than the sixth judgment value J6 corresponds to the window fogging condition. The CO2 concentration P6 is a parameter related to the window fogging condition, and corresponds to the window fogging parameter. The sixth judgment value J6 is a judgment value for judging whether the window fogging condition is established or not, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the CO2 concentration P6 with the sixth judgment value J6. The judgment result of whether the CO2 concentration P6 is higher than the sixth judgment value J6 or not corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the process of step S208 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0091] In step S209, the air conditioning control unit 150 determines whether or not an occupant is on board the eVTOL 10. If an occupant is on board the eVTOL 10, the air conditioning control unit 150 proceeds to step S210. In step S210, the air conditioning control unit 150 determines whether or not the inside air duration P7 is longer than a seventh determination value J7. The inside air duration P7 is the time during which the air conditioning system 110 continues to perform inside air circulation. The inside air duration P7 is the duration during which the suction switching unit 127 is in the inside air state. In the eVTOL 10, if the time during which inside air circulation is performed without introducing outside air is long, fogging of the window 16 is likely to occur due to the exhalation of the occupant, etc. The seventh determination value J7 is set to a value indicating that the inside air duration P7 is long enough to cause fogging of the window 16. The seventh determination value J7 is a value determined in advance by testing or the like, and is stored in the memory 152 or the like.

[0092] When an occupant is on board the eVTOL 10 and the inside air duration P7 is longer than the seventh judgment value J7, the air conditioning control unit 150 determines that the window fogging condition is established. The fact that an occupant is on board the eVTOL 10 and the inside air duration P7 is longer than the seventh judgment value J7 corresponds to the window fogging condition. The inside air duration P7 is a parameter related to the window fogging condition and corresponds to the window fogging parameter. The seventh judgment value J7 is a judgment value for judging whether or not the window fogging condition is established and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the inside air duration P7 with the seventh judgment value J7. The judgment result of whether or not the inside air duration P7 is longer than the seventh judgment value J7 corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the processing of steps S209 and S210 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0093] If the window fogging condition is met for steps S207 to S210, the air conditioning control unit 150 performs a condition satisfaction process in step S214. For example, if the inside air humidity P5 is higher than the fifth judgment value J5 for step S207, the air conditioning control unit 150 performs a condition satisfaction process in step S214. If the CO2 concentration P6 is higher than the sixth judgment value J6 for step S208, the air conditioning control unit 150 performs a condition satisfaction process in step S214. For steps S209 and S210, if an occupant is on board the eVTOL 10 and the inside air duration P7 is longer than the seventh judgment value J7, the air conditioning control unit 150 performs a condition satisfaction process in step S214.

[0094] The air conditioning control unit 150 may determine whether the window fogging condition is satisfied for each of steps S209 and S210 individually. For example, the air conditioning control unit 150 determines that the window fogging condition is satisfied in step S209 when an occupant is on board the eVTOL 10, and performs a condition satisfaction process in step S214. The air conditioning control unit 150 may determine whether the number of occupants is greater than a predetermined number, and determine that the window fogging condition is satisfied in the case where the number of occupants is greater than the predetermined number. The number of occupants is sometimes referred to as the number of passengers. Furthermore, the air conditioning control unit 150 determines that the window fogging condition is satisfied in step S210 when the inside air duration P7 is longer than the seventh judgment value J7, and performs a condition satisfaction process in step S214.

[0095] If the window fogging condition is not satisfied in steps S201 to S210, the air conditioning control unit 150 proceeds to step S211 and acquires an inside / outside difference P8a. The inside / outside difference P8a is the difference between the inside air temperature and the outside air temperature. The air conditioning control unit 150 acquires the inside air temperature and the outside air temperature from the inside air environment information and the outside air temperature, and calculates the inside / outside difference P8a using the inside air temperature and the outside air temperature.

[0096] In step S212, the air conditioning control unit 150 determines whether the inside / outside difference change speed P8 is faster than the eighth determination value J8. When the eVTOL 10 is flying and moving, the inside / outside difference P8a may change with the movement of the eVTOL 10 due to the change in the outside air temperature with the movement of the eVTOL 10. The inside / outside difference change speed P8 is the speed at which the inside / outside difference P8a changes. For example, the inside / outside difference change speed P8 is the amount of change in the inside / outside difference P8a per unit time. The air conditioning control unit 150 calculates the inside / outside difference change speed P8 using the inside / outside difference P8a. In the eVTOL 10, if the inside / outside difference P8a increases or decreases in a short period of time, fogging of the window 16 is likely to occur. For example, if the outside air temperature drops relatively to the inside air temperature in a short period of time due to the eVTOL 10 rising in a short period of time, fogging of the window 16 is likely to occur. The eighth judgment value J8 is set to a value indicating that the inside / outside difference change rate P8 is fast enough to cause fogging on the window 16. The eighth judgment value J8 is a value determined in advance by testing or the like, and is stored in the memory 152 or the like.

[0097] When the inside / outside difference change speed P8 is higher than the eighth judgment value J8, the air conditioning control unit 150 judges that the window fogging condition is established. The inside / outside difference change speed P8 being higher than the eighth judgment value J8 corresponds to the window fogging condition. The inside / outside difference change speed P8 is a parameter related to the window fogging condition, and corresponds to the window fogging parameter. The eighth judgment value J8 is a judgment value for judging whether the window fogging condition is established or not, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the inside / outside difference change speed P8 with the eighth judgment value J8. The judgment result of whether the inside / outside difference change speed P8 is faster than the eighth judgment value J8 or not corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the process of step S212 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0098] The inside / outside difference change rate P8 is included in inside / outside difference information that indicates the change mode of the inside / outside difference P8a. The air conditioning control unit 150 uses inside / outside difference information such as the inside / outside difference change rate P8 to determine whether or not the window fogging condition is met. The inside / outside difference information includes the inside / outside difference change rate P8 as well as the amount of change in the inside / outside difference P8a over a predetermined time. The function of the air conditioning control unit 150 that executes the process of step S212 corresponds to the inside / outside determination unit.

[0099] When the window fogging condition is satisfied in step S212, the air conditioning control unit 150 performs a condition satisfaction process in step S214. For example, when the inside / outside difference change speed P8 is greater than the eighth determination value J8 in step S212, the air conditioning control unit 150 performs a condition satisfaction process in step S214.

[0100] If the window fogging condition is not met in steps S201 to S212, the air conditioning control unit 150 proceeds to step S213. In step S213, the air conditioning control unit 150 performs a condition not met process. In the condition not met process, the fact that the window fogging condition is not met is stored in the memory 152, etc. For example, the air conditioning control unit 150 sets a condition not met flag indicating that the window fogging condition is not met in the memory 152, etc. In addition, the air conditioning control unit 150 clears the condition met flag.

[0101] Returning to FIG. 3, after the window fogging determination process in step S104, the air conditioning control unit 150 proceeds to step S105. In step S105, the air conditioning control unit 150 determines whether or not fogging will occur on the window 16. That is, the air conditioning control unit 150 determines whether or not the window fogging condition is met in the window fogging determination process. For example, the air conditioning control unit 150 determines whether or not a condition met flag or a condition not met flag is set. If the condition not met flag is set, the air conditioning control unit 150 determines that the window fogging condition is not met. If the window fogging condition is not met, the air conditioning control unit 150 determines that fogging is unlikely to occur on the window 16, and proceeds to step S107.

[0102] The air conditioning control unit 150 performs an inside air mode process in step S107. In the inside air mode process, the operation mode of the air conditioning system 110 is set to the inside air mode. The operation mode is an operation method of the air conditioning system 110. The inside air mode is an operation mode in which the air conditioning system 110 performs inside air circulation. The inside air mode is sometimes referred to as an in-cabin circulation mode. The inside air mode is one of the inside air circulation functions in which the air conditioning system 110 circulates the inside air inside the eVTOL 10. In the inside air mode, the inside air including the suction inside air Air1 circulates between the cabin 15 and the air conditioning system 110. That is, in the inside air mode, the inside air circulates inside the eVTOL 10. In the inside air mode, the suction switching unit 127 is set to the inside air state. In the inside air mode, the introduction of outside air is stopped.

[0103] After step S107, the air conditioning control unit 150 proceeds to step S109 and performs a notification process. In the notification process, the operation mode of the air conditioning system 110 is notified. In the notification process, the operation mode is notified to the pilot or passengers by an image, sound, or the like. For example, if the operation mode is set to the inside air mode in step S107, the air conditioning control unit 150 notifies that the operation mode is the inside air mode by the notification process.

[0104] In step S105, if the condition establishment flag is set, the air conditioning control unit 150 determines that the window fogging condition is established. If the window fogging condition is established, the air conditioning control unit 150 determines that the window 16 is likely to fogging up, and proceeds to step S106. In step S106, the air conditioning control unit 150 determines whether the outside air is normal or not. For example, the air conditioning control unit 150 determines whether the outside air quality and the smell of the outside air are within the normal range. The air conditioning control unit 150 determines that the outside air is normal when the outside air quality and the smell of the outside air are within the normal range. For example, when the concentration of pollutants is sufficiently low, the air conditioning control unit 150 determines that the outside air is not polluted air and that the outside air quality is within the normal range.

[0105] If the window 16 is prone to fogging and the outside air is normal, the air conditioning control unit 150 proceeds to step S108 and performs outside air mode processing. In the outside air mode processing, the operation mode of the air conditioning system 110 is set to the outside air mode. The outside air mode is an operation mode in which the air conditioning system 110 introduces outside air. The outside air mode is sometimes referred to as the outside air introduction mode. The outside air mode is one of the outside air introduction functions in which the air conditioning system 110 introduces outside air into the inside of the eVTOL 10. In the outside air mode, the intake outside air Air2 is introduced into the cabin 15. That is, in the outside air mode, outside air is introduced into the inside of the eVTOL 10. In the outside air mode, the suction switching unit 127 is set to the outside air state. In the outside air mode, the inside air circulation is stopped.

[0106] For example, when the operation mode is switched from the indoor air mode to the outdoor air mode, the air conditioning control unit 150 switches the intake switching unit 127 from the indoor air state to the outdoor air state. In this case, the intake outdoor air Air2 introduced into the cabin 15 increases. The function of the air conditioning control unit 150 to execute the process of step S108 corresponds to the outdoor air increase unit and the outdoor air mode unit.

[0107] When the window 16 is prone to fogging, the introduction of outside air makes the window 16 less likely to fogging. Also, when the window 16 is fogging, the introduction of outside air makes the window 16 less likely to fogging. For example, when the inside air humidity P5 is higher than the fifth judgment value J5, the introduction of outside air makes the inside air humidity P5 lower than the fifth judgment value J5, thereby suppressing window fogging. Also, when the CO2 concentration P6 is higher than the sixth judgment value J6, the introduction of outside air reduces the CO2 concentration P6 and reduces the inside air humidity P5, thereby suppressing window fogging. Furthermore, when the inside air duration P7 is longer than the seventh judgment value J7 with an occupant aboard the eVTOL 10, the introduction of outside air reduces the inside air humidity P5, thereby suppressing window fogging.

[0108] In the eVTOL 10, the temperature difference between the inside and outside of the aircraft is considered to be the biggest factor in the occurrence of window fogging. In this embodiment, flight altitude P1, lift speed P2, air pressure change rate P3, outside air temperature change rate P4, inside / outside difference P8a, inside / outside difference change rate P8, etc. are used as parameters related to the temperature difference between the inside and outside of the aircraft. Even if window fogging occurs due to the temperature difference between the inside and outside of the aircraft, window fogging is suppressed by introducing outside air.

[0109] For example, when the inside / outside difference change speed P8 is faster than the eighth judgment value J8, the introduction of outside air makes the inside / outside difference change speed P8 slower than the eighth judgment value J8, thereby suppressing window fogging. Also, when the eVTOL10 performs vertical takeoff or vertical landing, the introduction of outside air reduces the inside / outside difference change speed P8, thereby suppressing window fogging. When the flight altitude P1 is higher than the first judgment value J1 and the lift speed P2 is faster than the second judgment value J2, the introduction of outside air also reduces the inside / outside difference change speed P8, thereby suppressing window fogging. When the air pressure change speed P3 is faster than the third judgment value J3 and when the outside air temperature change speed P4 is faster than the fourth judgment value J4, the introduction of outside air also reduces the inside / outside difference change speed P8, thereby suppressing window fogging.

[0110] When the eVTOL10 takes off vertically, it is considered that the inside / outside difference change speed P8 becomes faster as the eVTOL10 rises in a short time, and window fogging is likely to occur. In contrast, when the eVTOL10 takes off vertically, even if the flight altitude P1 increases suddenly, the inside / outside difference change speed P8 is slowed down by introducing outside air, and window fogging is suppressed. In addition, when the eVTOL10 lands vertically, it is considered that the inside / outside difference change speed P8 becomes faster as the eVTOL10 descends in a short time, and window fogging is likely to occur. In contrast, when the eVTOL10 lands vertically, even if the flight altitude P1 decreases suddenly, the inside / outside difference change speed P8 is slowed down by introducing outside air, and window fogging is suppressed.

[0111] After step S108, the air conditioning control unit 150 proceeds to step S109 and performs a notification process. For example, when the operation mode is set to the outside air mode, the air conditioning control unit 150 performs the notification process to notify that the operation mode is the outside air mode.

[0112] In steps S105 and S106, if the windows 16 are prone to fogging but the outside air is not normal, the air conditioning control unit 150 proceeds to step S107 and performs inside air mode processing. In this case, regulating the introduction of contaminated air into the cabin 15 is prioritized over suppressing window fogging. The air conditioning control unit 150 regulates contaminants from being introduced into the cabin 15 along with the outside air. Thereafter, the air conditioning control unit 150 proceeds to step S107 and performs inside air mode processing. In this inside air mode processing, it is notified that the windows 16 are prone to fogging, that outside air is not being introduced, that the outside air is not normal, etc.

[0113] According to the present embodiment described so far, when the window fogging condition in the eVTOL10 is satisfied, the intake outside air Air2 introduced into the inside of the eVTOL10 is increased. In this configuration, the intake outside air Air2 can suppress the occurrence of fogging on the windows 16 of the eVTOL10. In addition, even if fogging occurs on the windows 16 of the eVTOL10, the intake outside air Air2 can reduce the fogging. Therefore, even if a dedicated device for heating the windows 16 or the like is not provided in the eVTOL10, the outside air intake function of the air conditioning system 110 can be used to suppress the pilot's visibility from being impaired due to fogging on the windows 16. In this way, the safety of the eVTOL10 can be improved in the air conditioning system 110, the air conditioning control unit 150, and the program 153.

[0114] According to this embodiment, the operation mode of the air conditioning system 110 is switched from the inside air mode to the outside air mode, thereby increasing the amount of intake outside air Air2 introduced into the eVTOL 10. In this configuration, by using the outside air mode, which is one of the outside air introduction functions, fogging of the windows 16 can be suppressed. Moreover, in the outside air mode, a sufficient amount of intake outside air Air2 introduced into the cabin 15 is ensured, so that even if fogging of the windows occurs, the fogging can be quickly eliminated.

[0115] According to this embodiment, flight information such as flight altitude P1, in-flight environment information such as inside air humidity P5, and outside air temperature change rate P4 are used to determine whether the window fogging condition is satisfied. Therefore, when the flight state of the eVTOL10 affects the likelihood of window fogging, the estimation accuracy of window fogging can be improved by the flight information. Also, when the in-flight environment of the eVTOL10 affects the likelihood of window fogging, the estimation accuracy of window fogging can be improved by the in-flight environment information. Furthermore, when the outside environment of the eVTOL10 affects the likelihood of window fogging, the estimation accuracy of window fogging can be improved by the outside environment information. Therefore, the flight information, the in-flight environment information, and the outside environment information can suppress the situation where outside air is not introduced even though window fogging is likely to occur.

[0116] According to this embodiment, the inside / outside difference information such as the inside / outside difference change rate P8 is used to determine whether the window fogging condition is satisfied. Therefore, when the change in the inside / outside difference P8a is likely to affect the likelihood of window fogging, the inside / outside difference information can improve the estimation accuracy of the window fogging occurrence. Therefore, the inside / outside difference information can prevent the introduction of outside air from being performed even though the window fogging is likely to occur.

[0117] According to this embodiment, the air conditioning control unit 150 determines that the window fogging condition is established when the eVTOL 10 takes off vertically. In this configuration, outside air is introduced when the eVTOL 10 takes off vertically. For this reason, the introduction of outside air prevents the window fogging from occurring due to the inside / outside difference change speed P8 increasing with the vertical takeoff of the eVTOL 10. Therefore, it is possible to reliably prevent the pilot's visibility from being impaired due to window fogging during the vertical takeoff of the eVTOL 10.

[0118] According to this embodiment, the air conditioning control unit 150 determines that the window fogging condition is established when the eVTOL 10 makes a vertical landing. In this configuration, outside air is introduced when the eVTOL 10 makes a vertical landing. Therefore, the introduction of outside air prevents the window fogging from occurring due to the inside / outside difference change speed P8 increasing with the vertical landing of the eVTOL 10. Therefore, it is possible to reliably prevent the pilot's visibility from being impaired due to window fogging when the eVTOL 10 makes a vertical landing.

[0119] According to this embodiment, the air conditioning control unit 150 judges whether or not the window fogging condition is satisfied by using a comparison result between a window fogging parameter such as the outside air temperature change rate P4 and a window fogging judgment value such as the fourth judgment value J4. In this configuration, the window fogging judgment value is set to a highly accurate value through testing or the like, thereby improving the accuracy of the comparison result between the window fogging parameter and the window fogging judgment value. Therefore, the accuracy of the judgment as to whether or not the window fogging condition is satisfied can be improved by the window fogging judgment value. Therefore, the window fogging parameter and the window fogging judgment value can prevent the outside air from being introduced even though the window fogging is likely to occur.

[0120] <Second embodiment> In the first embodiment, the predetermined first judgment value J1, etc., are used as parameter judgment values ​​to judge the window fogging condition. In contrast, in the second embodiment, a corrected value obtained by correcting the first judgment value J1, etc., is used as a parameter judgment value to judge the window fogging condition. The configurations, actions, and effects not specifically described in the second embodiment are the same as those in the first embodiment. The second embodiment will be described mainly with respect to the points different from the first embodiment.

[0121] The air conditioning control unit 150 performs air conditioning control processing in the same manner as in the first embodiment. In this embodiment, the air conditioning control processing will be described with reference to the flowchart of Fig. 5. The air conditioning control unit 150 acquires in-cabin environment information, external environment information, and flight information in steps S101 to S103, in the same manner as in the first embodiment.

[0122] The air conditioning control unit 150 performs a judgment value correction process in step S301 shown in FIG. 5. The air conditioning control unit 150 corrects a reference judgment value as the judgment value correction process. The reference judgment value is a value related to a window fogging condition. The reference judgment value is a value determined in advance by a test or the like, and is stored in the memory 152 or the like. For example, the reference judgment value is a first judgment value J1 to an eighth judgment value J8. The air conditioning control unit 150 corrects the reference judgment value using a correction parameter. The correction parameter includes inside / outside difference information, the number of occupants, and outside environment information. The air conditioning control unit 150 corrects the first correction value J1c to an eighth correction value J8c by correcting the first judgment value J1 to the eighth judgment value J8. In this embodiment, the correction values ​​J1c to J8c are window fogging judgment values. The function of the air conditioning control unit 150 to execute the process of step S301 corresponds to the judgment value correction unit.

[0123] The judgment value correction process will be described with reference to the flowchart shown in Fig. 6. The air conditioning control unit 150 acquires the inside / outside difference P8b before takeoff in step S401. The inside / outside difference P8b before takeoff is the temperature difference between the inside air and the outside air before the eVTOL 10 takes off. In other words, the inside / outside difference P8b before takeoff is the inside / outside difference P8a before takeoff. For example, the inside / outside difference P8b before takeoff is the inside / outside difference P8a just before takeoff or the inside / outside difference P8a during takeoff preparation. The inside / outside difference P8b before takeoff corresponds to the temperature difference, and the inside / outside difference P8b before takeoff corresponds to the correction parameter.

[0124] In step S402, the air conditioning control unit 150 corrects the judgment values ​​J1 to J8 using the inside / outside difference P8b before takeoff. The air conditioning control unit 150 corrects the judgment values ​​J1 to J8 so that the smaller the inside / outside difference P8b before takeoff, the more likely it is that outside air introduction will be selected. In the eVTOL 10, the smaller the inside / outside difference P8b before takeoff, the more likely it is that the inside / outside difference change speed P8 after takeoff will be. For example, before the eVTOL 10 takes off, if the inside air temperature is higher than the outside air temperature and the inside / outside difference P8b before takeoff is small, the outside air temperature decreases as the eVTOL 10 takes off, and the inside / outside difference change speed P8 becomes large. In this way, if the inside / outside difference P8b before takeoff is small, the inside / outside difference change speed P8 becomes large, and window fogging is likely to occur. Therefore, the air conditioning control unit 150 corrects the judgment values ​​J1 to J8 so that the correction values ​​J1c to J8c become smaller as the inside / outside difference P8b before takeoff becomes smaller. The function of the air conditioning control unit 150 that executes the process of step S402 corresponds to a temperature correction unit.

[0125] The air conditioning control unit 150 may correct the determination values ​​J1 to J8 so that the larger the inside / outside difference P8b before takeoff, the more likely it is that the outside air introduction will be selected. For example, the air conditioning control unit 150 corrects the determination values ​​J1 to J8 so that the larger the inside / outside difference P8b before takeoff, the smaller the correction values ​​J1c to J8c.

[0126] The air conditioning control unit 150 acquires the number of occupants in step S403. The number of occupants corresponds to a correction parameter. The air conditioning control unit 150 corrects the determination values ​​J1 to J8 using the number of occupants in step S404. The air conditioning control unit 150 corrects the determination values ​​J1 to J8 so that the greater the number of occupants, the more likely it is that outside air introduction will be selected. In the eVTOL 10, the greater the number of occupants, the more likely window fogging will occur due to exhaled breath, etc. The air conditioning control unit 150 corrects the determination values ​​J1 to J8 so that the greater the number of occupants, the smaller the correction values ​​J1c to J8c. The function of the air conditioning control unit 150 that executes the process of step S404 corresponds to an occupant correction unit.

[0127] The air conditioning control unit 150 acquires outside environment information in step S405. The outside environment information includes outside air quality information indicating the outside air quality. The air conditioning control unit 150 acquires at least the outside air quality information included in the outside environment information.

[0128] In step S406, the air conditioning control unit 150 corrects the judgment values ​​J1 to J8 using the outside environment information. The air conditioning control unit 150 corrects the judgment values ​​J1 to J8 so that the worse the outside air quality is, the less likely it is that the outside air introduction is selected. When outside air with poor outside air quality is introduced into the cabin 15, window fogging is less likely to occur, but there is a concern that other inconveniences other than window fogging may occur due to the poor outside air quality. Other inconveniences include passengers feeling uncomfortable due to dirty outside air and passengers feeling unwell due to dirty outside air. Therefore, the air conditioning control unit 150 corrects the judgment values ​​J1 to J8 so that the correction values ​​J1c to J8c become larger as the air quality becomes worse. The function of the air conditioning control unit 150 that executes the process of S406 corresponds to the outside air correction unit.

[0129] Returning to FIG. 5, the air conditioning control unit 150 proceeds to step S302 after the judgment value correction process in step S301. The air conditioning control unit 150 performs a window fogging judgment process in step S302. The window fogging judgment process of this embodiment differs from the window fogging judgment process of the first embodiment in that the correction values ​​J1c to J8c are used as the window fogging judgment values. Except for using the correction values ​​J1c to J8c as the window fogging judgment values, the window fogging judgment process of this embodiment basically performs the same process as the window fogging judgment process of the first embodiment. The function of the air conditioning control unit 150 that executes the process of step S302 corresponds to the window fogging judgment unit. After the window fogging judgment process in step S302, the air conditioning control unit 150 performs the processes of steps S105 to S109.

[0130] The window fogging determination process will be described with reference to the flowchart in Fig. 7. The air conditioning control unit 150 performs steps S501 to S514 in the window fogging determination process. Steps S501 to S514 are basically the same as steps S201 to S214 in the first embodiment.

[0131] In steps S501 to S504, the air conditioning control unit 150 uses the flight information to determine whether or not a window fogging condition is established. The function of the air conditioning control unit 150 that executes the processes of steps S501 to S504 corresponds to a flight determination unit. The air conditioning control unit 150 performs a vertical takeoff determination in step S501, and performs a vertical landing determination in step S502. The function of the air conditioning control unit 150 that executes the process of step S501 corresponds to a takeoff determination unit. The function of the air conditioning control unit 150 that executes the process of step S502 corresponds to a landing determination unit.

[0132] In step S503, the air conditioning control unit 150 judges whether the flight altitude P1 is higher than the first correction value J1c. In step S504, the air conditioning control unit 150 judges whether the lift speed P2 is faster than the second correction value J2c. If the flight altitude P1 is higher than the first correction value J1c and the lift speed P2 is faster than the second correction value J2c, the air conditioning control unit 150 judges that the window fogging condition is established. The flight altitude P1 being higher than the first correction value J1c and the lift speed P2 being faster than the second correction value J2c corresponds to the window fogging condition. The first correction value J1c and the second correction value J2c are judgment values ​​for judging whether the window fogging condition is established and correspond to the window fogging judgment values.

[0133] The air conditioning control unit 150 compares the flight altitude P1 with the first correction value J1c. The determination result of whether the flight altitude P1 is higher than the first correction value J1c corresponds to the comparison result of the window fogging parameter with the window fogging determination value. The air conditioning control unit 150 compares the lift speed P2 with the second correction value J2c. The determination result of whether the lift speed P2 is faster than the second correction value J2c corresponds to the comparison result of the window fogging parameter with the window fogging determination value. The function of executing the processes of steps S503 and S504 in the air conditioning control unit 150 corresponds to the parameter determination unit.

[0134] The air conditioning control unit 150 uses the outside environment information to determine whether or not the window fogging condition is met in steps S505 and S506. The function of the air conditioning control unit 150 that executes the processes in steps S505 and S506 corresponds to an external determination unit.

[0135] In step S505, the air conditioning control unit 150 judges whether the air pressure change rate P3 is faster than the third correction value J3c. If the air pressure change rate P3 is faster than the third correction value J3c, the air conditioning control unit 150 judges that the window fogging condition is established. The air pressure change rate P3 being faster than the third correction value J3c corresponds to the window fogging condition. The third correction value J3c is a judgment value for judging whether the window fogging condition is established, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the air pressure change rate P3 with the third correction value J3c. The judgment result of whether the air pressure change rate P3 is faster than the third correction value J3c corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of the air conditioning control unit 150 that executes the process of step S505 corresponds to the parameter judgment unit.

[0136] In step S506, the air conditioning control unit 150 judges whether the outside air temperature change rate P4 is faster than the fourth correction value J4c. If the outside air temperature change rate P4 is faster than the fourth correction value J4c, the air conditioning control unit 150 judges that the window fogging condition is established. The outside air temperature change rate P4 being faster than the fourth correction value J4c corresponds to the window fogging condition. The fourth correction value J4c is a judgment value for judging whether the window fogging condition is established, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the outside air temperature change rate P4 with the fourth correction value J4c. The judgment result of whether the outside air temperature change rate P4 is faster than the fourth correction value J4c corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of the air conditioning control unit 150 that executes the process of step S506 corresponds to the parameter judgment unit.

[0137] In steps S507 to S510, the air conditioning control unit 150 uses the in-flight environment information to determine whether or not the window fogging condition is met. The function of the air conditioning control unit 150 that executes the processes in steps S507 to S510 corresponds to an internal determination unit.

[0138] In step S507, the air conditioning control unit 150 judges whether the inside air humidity P5 is higher than the fifth correction value J5c. If the inside air humidity P5 is higher than the fifth correction value J5c, the air conditioning control unit 150 judges that the window fogging condition is established. The inside air humidity P5 being higher than the fifth correction value J5c corresponds to the window fogging condition. The fifth correction value J5c is a judgment value for judging whether the window fogging condition is established or not, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the inside air humidity P5 with the fifth correction value J5c. The judgment result of whether the inside air humidity P5 is higher than the fifth correction value J5c corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the process of step S507 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0139] In step S508, the air conditioning control unit 150 judges whether the CO2 concentration P6 is higher than the sixth correction value J6c. If the CO2 concentration P6 is higher than the sixth correction value J6c, the air conditioning control unit 150 judges that the window fogging condition is established. The CO2 concentration P6 being higher than the sixth correction value J6c corresponds to the window fogging condition. The sixth correction value J6c is a judgment value for judging whether the window fogging condition is established or not, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the CO2 concentration P6 with the sixth correction value J6c. The judgment result of whether the CO2 concentration P6 is higher than the sixth correction value J6c or not corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the process of step S508 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0140] In step S510, the air conditioning control unit 150 determines whether the inside air duration P7 is longer than the seventh correction value J7c. When an occupant is on board the eVTOL 10 and the inside air duration P7 is longer than the seventh correction value J7c, the air conditioning control unit 150 determines that the window fogging condition is established. The fact that an occupant is on board the eVTOL 10 and the inside air duration P7 is longer than the seventh correction value J7c corresponds to the window fogging condition. The seventh correction value J7c is a judgment value for judging whether the window fogging condition is established and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the inside air duration P7 with the seventh correction value J7c. The judgment result of whether the inside air duration P7 is longer than the seventh correction value J7c corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the processing of steps S509 and S510 in the air conditioning control unit 150 corresponds to the parameter judgment unit.

[0141] In step S512, the air conditioning control unit 150 judges whether the inside / outside difference change speed P8 is faster than the eighth correction value J8c. When the inside / outside difference change speed P8 is higher than the eighth correction value J8c, the air conditioning control unit 150 judges that the window fogging condition is established. The inside / outside difference change speed P8 being higher than the eighth correction value J8c corresponds to the window fogging condition. The eighth correction value J8c is a judgment value for judging whether the window fogging condition is established or not, and corresponds to the window fogging judgment value. The air conditioning control unit 150 compares the inside / outside difference change speed P8 with the eighth correction value J8c. The judgment result of whether the inside / outside difference change speed P8 is faster than the eighth correction value J8c corresponds to the comparison result between the window fogging parameter and the window fogging judgment value. The function of executing the process of step S512 in the air conditioning control unit 150 corresponds to the parameter judgment unit and the inside / outside judgment unit.

[0142] According to this embodiment, the air conditioning control unit 150 obtains a window fogging determination value such as the fourth correction value J4c used to determine whether or not the window fogging condition is satisfied by correcting a determination reference value such as the fourth determination value J4. In this configuration, the determination reference value is corrected according to the interior environment information, the exterior environment information, and the like, so that the window fogging determination value can be set to a value suitable for the interior environment or the exterior environment. This can improve the accuracy of the comparison result between the window fogging parameter such as the outside air temperature change rate P4 and the window fogging determination value. Therefore, the corrected window fogging determination value can further improve the accuracy of the determination whether or not the window fogging condition is satisfied.

[0143] According to this embodiment, the inside / outside difference P8b before takeoff, the number of occupants, and the outside air quality information are used to correct the reference judgment value that is performed to obtain the window fogging judgment value. Therefore, when the inside / outside difference P8b before takeoff affects the likelihood of window fogging, the window fogging judgment value is set to a value corresponding to the inside / outside difference P8b before takeoff, so that the estimation accuracy of the window fogging occurrence can be improved. Also, when the number of occupants affects the likelihood of window fogging occurrence, the window fogging judgment value is set to a value corresponding to the number of occupants, so that the estimation accuracy of the window fogging occurrence can be improved. Therefore, the inside / outside difference P8b before takeoff and the number of occupants can prevent the situation where outside air is not introduced even though window fogging is likely to occur.

[0144] Furthermore, since the window fogging determination value is a value according to the outside air quality information, it is possible to make it difficult for outside air to be introduced when the outside air quality is poor. For example, when the airspace in which the eVTOL 10 is flying is an airspace in which the air is not normal, it is possible to make it difficult for outside air introduction to be selected. Therefore, while window fogging is unlikely to occur due to the introduction of outside air, it is possible to suppress other inconveniences other than window fogging that occur due to the outside air being introduced into the cabin 15 being dirty. An example of an airspace in which the air is not normal is an airspace in which air pollution such as smog is severe.

[0145] <Third embodiment> In the first embodiment, the outside air is introduced when the window fogging condition is satisfied, and the outside air introduction is stopped when the window fogging condition is not satisfied. In contrast, in the third embodiment, the outside air may be introduced both when the window fogging condition is satisfied and when it is not satisfied. The configurations, actions, and effects not specifically described in the third embodiment are the same as those in the first embodiment. In the third embodiment, the differences from the first embodiment will be mainly described.

[0146] The operation modes of the air conditioning system 110 include a mixed mode. The mixed mode is an operation mode in which the air conditioning system 110 performs both inside air circulation and outside air introduction. The mixed mode is one of the inside air circulation functions and one of the outside air introduction functions. In the mixed mode, both the inside air circulates between the cabin 15 and the air conditioning system 110 and the intake outside air Air2 is introduced into the cabin 15. In the mixed mode, the intake switch unit 127 is set to a mixed state. In the mixed mode, the air conditioning control unit 150 is able to adjust the amount of intake outside air. The amount of intake outside air is the amount of intake outside air Air2 introduced into the cabin 15.

[0147] For example, in the mixed mode, the amount of introduced outdoor air is changed in multiple stages. The mixed mode includes a first mixed mode and a second mixed mode. The air conditioning control unit 150 can switch the operation mode between the first mixed mode and the second mixed mode. The amount of introduced outdoor air in the second mixed mode is set to be greater than the amount of introduced outdoor air in the first mixed mode. On the other hand, the amount of introduced outdoor air in the second mixed mode is set to be less than the amount of introduced outdoor air in the outdoor air mode.

[0148] The air conditioning control process of this embodiment will be described with reference to the flowchart in FIG. 8. The air conditioning control unit 150 performs the processes of steps S101 to S106 in the same manner as in the first embodiment. If the window fogging condition is not met in step S104, the air conditioning control unit 150 proceeds to step S601. The air conditioning control unit 150 performs outside air maintenance process in step S601. In the outside air maintenance process, the amount of outside air introduced into the cabin 15 is maintained. If the current operation mode is the mixed mode, the outside air maintenance process maintains the operation mode in the mixed mode. When the air conditioning control unit 150 proceeds to step S109 after step S601, it performs notification process, for example, notifying that the operation mode is maintained in the mixed mode.

[0149] In steps S105 and S106, if the window fogging condition is met but the outside air is not normal, the air conditioning control unit 150 proceeds to step S601 and performs outside air maintenance processing, as in the case where the window fogging condition is not met. When the air conditioning control unit 150 proceeds from step S106 to step S109 via step S601, it notifies, as a notification process, for example, that the window fogging condition is met, that the outside air is not normal, that the amount of outside air introduced is being maintained, and so on.

[0150] In steps S105 and S106, if the window fogging condition is met and the outside air is normal, the air conditioning control unit 150 proceeds to step S602. The air conditioning control unit 150 performs an outside air increase process in step S602. In the outside air increase process, the amount of outside air introduced into the cabin 15 is increased. The air conditioning control unit 150 switches the operation mode of the air conditioning system 110 so as to increase the amount of outside air introduced. For example, when the current operation mode is the first mixed mode, the air conditioning control unit 150 increases the amount of outside air introduced by switching the operation mode from the first mixed mode to the second mixed mode. Also, when the current operation mode is the second mixed mode, the air conditioning control unit 150 increases the amount of outside air introduced by switching the operation mode from the second mixed mode to the outside air mode.

[0151] When the process proceeds to step S109 after step S602, the air conditioning control unit 150 performs a notification process to notify the user that the operation mode has been switched so that the amount of outside air introduced is increased. The function of the air conditioning control unit 150 that executes the process of step S602 corresponds to the outside air increasing unit.

[0152] <Fourth embodiment> In the above-described first embodiment, when the eVTOL 10 performs vertical takeoff or vertical landing, outside air is introduced into the cabin 15 regardless of the flight altitude P1 or the lift speed P2. In contrast, in the fourth embodiment, when the eVTOL 10 performs vertical takeoff or vertical landing, outside air is introduced into the cabin 15 according to the flight altitude P1 or the lift speed P2. Configurations, actions, and effects that are not specifically described in the fourth embodiment are similar to those in the first embodiment. The fourth embodiment will be described mainly with respect to the points that are different from the first embodiment.

[0153] The air conditioning control unit 150 performs the window fogging determination process in the same manner as in the first embodiment. In the window fogging determination process of this embodiment, a determination regarding vertical takeoff and vertical landing is performed. In the window fogging determination process of this embodiment, a determination regarding the inside air humidity P5 and the like may be performed in the same manner as in the first embodiment.

[0154] The window fogging determination process will be described with reference to the flowchart in Fig. 9. In steps S701 to S706 of the window fogging determination process, the air conditioning control unit 150 uses flight information to determine whether or not the window fogging condition is met. The function of the air conditioning control unit 150 that executes the processes of steps S701 to S706 corresponds to a flight determination unit.

[0155] In step S701, the air conditioning control unit 150 performs a vertical takeoff determination, similar to step S201 in the first embodiment. When the eVTOL 10 takes off vertically, the air conditioning control unit 150 proceeds to step S702. In step S702, the air conditioning control unit 150 determines whether the flight altitude P1 is higher than the first determination value J1, similar to step S203 in the first embodiment. When the flight altitude P1 is higher than the first determination value J1, the air conditioning control unit 150 proceeds to step S703. In step S703, the air conditioning control unit 150 determines whether the lift speed P2 is faster than the second determination value J2, similar to step S204 in the first embodiment. In step S703, the lift speed P2 is set as the ascent speed when the eVTOL 10 takes off vertically.

[0156] When the eVTOL 10 takes off vertically, if the flight altitude P1 is higher than the first judgment value J1 and the lift speed P2 is faster than the second judgment value J2, the air conditioning control unit 150 determines that the window fogging condition is met. In addition to the eVTOL 10 taking off vertically, the flight altitude P1 being higher than the first judgment value J1 and the lift speed P2 being faster than the second judgment value J2 correspond to the window fogging condition. The function of the air conditioning control unit 150 that executes the processing of steps S702 and S703 corresponds to the parameter determination unit.

[0157] If the window fogging condition is met in steps S701 to S703, the air conditioning control unit 150 proceeds to step S708. In step S708, the air conditioning control unit 150 performs a condition satisfaction process similar to step S214 in the first embodiment.

[0158] If the window fogging condition is not satisfied in steps S701 to S703, the air conditioning control unit 150 proceeds to step S704. In step S704, the air conditioning control unit 150 performs a vertical landing determination, similar to step S202 in the first embodiment. If the eVTOL 10 lands vertically, the air conditioning control unit 150 proceeds to step S705. In step S705, the air conditioning control unit 150 determines whether the flight altitude P1 is higher than the first determination value J1, similar to step S203 in the first embodiment. If the flight altitude P1 is higher than the first determination value J1, the air conditioning control unit 150 proceeds to step S706. In step S706, the air conditioning control unit 150 determines whether the lift speed P2 is faster than the second determination value J2, similar to step S204 in the first embodiment. In step S706, the descent speed when the eVTOL 10 lands vertically is set to the lift speed P2.

[0159] When the eVTOL 10 makes a vertical landing, if the flight altitude P1 is higher than the first judgment value J1 and the lift speed P2 is faster than the second judgment value J2, the air conditioning control unit 150 determines that the window fogging condition is met. In addition to the eVTOL 10 making a vertical landing, the flight altitude P1 being higher than the first judgment value J1 and the lift speed P2 being faster than the second judgment value J2 correspond to the window fogging condition. The function of the air conditioning control unit 150 that executes the processing of steps S705 and S706 corresponds to the parameter determination unit.

[0160] If the window fogging condition is met in steps S704 to S706, the air conditioning control unit 150 proceeds to step S708 and performs a condition satisfaction process. If the window fogging condition is not met in steps S701 to S706, the air conditioning control unit 150 proceeds to step S707. In step S707, the air conditioning control unit 150 performs a condition non-satisfaction process, similar to step S213 in the first embodiment.

[0161] <Other embodiments> The disclosure of this specification is not limited to the exemplified embodiments. The disclosure includes the exemplified embodiments and modifications by those skilled in the art based thereon. For example, the disclosure is not limited to the combination of parts and elements shown in the embodiments, and can be implemented in various modifications. The disclosure can be implemented by various combinations. The disclosure can have additional parts that can be added to the embodiments. The disclosure includes those in which parts and elements of the embodiments are omitted. The disclosure includes the replacement or combination of parts and elements between one embodiment and another embodiment. The disclosed technical scope is not limited to the description of the embodiments. The disclosed technical scope is indicated by the description of the claims, and should be interpreted as including all modifications within the meaning and scope equivalent to the description of the claims.

[0162] In each of the above embodiments, if the window fogging condition is satisfied, and the outside air is introduced so as to suppress the fogging of the windows, the amount of introduced outside air does not necessarily need to be increased. For example, the position where the outside air is introduced may be changed so as to suppress the fogging of the windows when the window fogging condition is satisfied. In a configuration in which a plurality of air conditioning outlets 137 are provided in the cabin 15, the air conditioning outlet 137 that blows out the intake outside air Air2 as the conditioned air Air3 may be changed when the window fogging condition is satisfied.

[0163] For example, in a configuration in which the cabin 15 has air conditioning outlets 137 in both the passenger cabin and the pilot cabin, when a window fogging condition is met, outside air may be introduced into the pilot cabin by blowing out the intake outside air Air2 from the air conditioning outlet 137 in the pilot cabin. In this case, it is preferable that the introduction of outside air for defogging is limited to the pilot cabin out of the passenger cabin and the pilot cabin. This makes it possible to prevent fogging of the window 16 in the pilot cabin without affecting the air in the cabin.

[0164] In addition, in a configuration in which the multiple air conditioning outlets 137 in the cabin 15 include window-facing air conditioning outlets and other-facing air conditioning outlets, when a window fogging condition is established, the sucked outside air Air2 may be blown out from the window-facing air conditioning outlets toward the window 16. The window-facing air conditioning outlets are air conditioning outlets 137 that blow out the sucked outside air Air2 toward the window 16. The other-facing air conditioning outlets are air conditioning outlets 137 that blow out the sucked outside air Air2 in a direction different from the window 16.

[0165] Furthermore, in a configuration in which the multiple windows 16 include pilot windows and passenger windows, when the window fogging condition is met, outside air may be introduced so that fogging of at least the pilot window is suppressed. For example, when the window fogging condition is met, outside air is introduced so that the suctioned outside air Air2 hits at least the pilot window. The pilot window is a window through which the pilot visually checks the outside of the aircraft, etc. The passenger window is a window through which the passenger visually checks the outside of the aircraft, etc. It is particularly important to prevent fogging of the pilot window 16, and anti-fogging of passenger windows that are not used in flight is a low priority.

[0166] In the eVTOL 10, a camera for capturing an image for remote operation may be provided in the cabin 15. In this configuration, when a window fogging condition is met, outside air may be introduced so as to suppress fogging of the window in the portion captured by the camera.

[0167] In each of the above embodiments, the air conditioning control unit 150 may use at least one of flight information, in-flight environment information, and external environment information to determine whether the window fogging condition is satisfied. That is, the air conditioning control unit 150 may have at least one of a flight determination unit, an interior determination unit, and an exterior determination unit. The air conditioning control unit 150 may introduce outside air when at least one of the flight determination unit, the interior determination unit, and the exterior determination unit determines that the window fogging condition is satisfied. For example, the air conditioning control unit 150 may introduce outside air when all of the flight determination unit, the interior determination unit, and the exterior determination unit determine that the window fogging condition is satisfied.

[0168] In each of the above embodiments, the air conditioning control unit 150 may use at least one window fogging parameter to determine whether or not the window fogging condition is satisfied. That is, the air conditioning control unit 150 may have at least one parameter determination unit. The air conditioning control unit 150 may introduce outside air when at least one parameter determination unit determines that the window fogging condition is satisfied. For example, the air conditioning control unit 150 may introduce outside air when all of the multiple parameter determination units determine that the window fogging condition is satisfied.

[0169] In each of the above embodiments, the air conditioning control unit 150 may use at least one of the flight information, the cabin environment information, and the external environment information to correct the reference judgment value. The air conditioning control unit 150 may also use all of the flight information, the cabin environment information, and the external environment information to correct the reference judgment value.

[0170] In each of the above embodiments, a fogging sensor that detects fogging on the windows 16 may be provided in the eVTOL 10. For example, when the fogging sensor detects fogging on the windows 16, the air conditioning control unit 150 determines that the window fogging condition is met.

[0171] In each of the above embodiments, the number of occupants may be used as the window fogging parameter. In a configuration in which the number of occupants is used as the window fogging parameter, a window fogging determination value is set for the number of occupants. For example, in the above second embodiment, a reference determination value may be set for the number of occupants, and this reference determination value may be corrected by a correction parameter.

[0172] In each of the above embodiments, the flight control unit 40 may be included in the air conditioning system 110. That is, at least one of the air conditioning control unit 150 and the flight control unit 40 may be included in the air conditioning system 110. In this configuration, the air conditioning system 110 is controlled by at least one of the air conditioning control unit 150 and the flight control unit 40. In this case, at least one of the air conditioning control unit 150 and the flight control unit 40 corresponds to an air conditioning control device. Also, in this configuration, at least one of the processors 41, 151 corresponds to a processing unit, and at least one of the programs 43, 153 corresponds to an air conditioning control program.

[0173] In each of the above embodiments, the eVTOL 10 does not have to be a tilt rotor aircraft. That is, it does not have to be configured such that one rotor 20 serves as both a lift rotor and a cruise rotor. For example, one rotor 20 may function as only one of a lift rotor and a cruise rotor. In this configuration, the multiple rotors 20 in the eVTOL 10 include a lift rotor and a cruise rotor.

[0174] In each of the above embodiments, the vertical take-off and landing aircraft on which the air conditioning control unit 150 is mounted may be an electrically-driven vertical take-off and landing aircraft in which at least one rotor 20 is driven by at least one EPU 50. For example, a configuration in which one rotor 20 is driven by multiple EPUs 50, or a configuration in which one EPU 50 drives multiple rotors 20 may be used.

[0175] In each of the above embodiments, the aircraft on which the air conditioning control unit 150 is mounted does not have to be a vertical take-off and landing aircraft as long as it is an electric aircraft. For example, the aircraft may be an electric aircraft capable of take-off and landing with a runway. Furthermore, the aircraft may be a rotary wing aircraft or a fixed wing aircraft.

[0176] In each of the above embodiments, the air conditioning control unit 150 is provided by a control system including at least one computer. The control system includes at least one processor that is hardware. If this processor is called a hardware processor, the hardware processor can be provided by the following (i), (ii), or (iii).

[0177] (i) The hardware processor may be a hardware logic circuit. In this case, the computer is provided by a digital circuit including a number of programmed logic units. The logic units are, for example, gate circuits. The digital circuit may include a memory that stores at least one of a program and data. The computer may be provided by an analog circuit. The computer may be provided by a combination of a digital circuit and an analog circuit.

[0178] (ii) The hardware processor may be at least one processor core that executes a program stored in at least one memory. In this case, the computer is provided with at least one memory and at least one processor core. The processor core is referred to as a CPU, for example. The memory is also referred to as a storage medium. The memory is a non-transitive and tangible storage medium that non-transiently stores "at least one of a program and data" that can be read by the processor.

[0179] (iii) A hardware processor may be a combination of (i) above and (ii) above, where (i) and (ii) are located on different chips or on a common chip.

[0180] That is, at least one of the means and functions provided by the air conditioning control unit 150 can be provided by hardware alone, software alone, or a combination of both.

[0181] (Disclosure of technical ideas) This specification discloses multiple technical ideas described in the following multiple dependent claims. Some of the claims may be described in a multiple dependent form, where the subsequent claim alternatively refers to the preceding claim. Furthermore, some of the claims may be described in a multiple dependent form, where the subsequent claim alternatively refers to the preceding claim. The claims described in these multiple dependent forms define multiple technical ideas.

[0182] (Technical thought 1) An air conditioning device (110) provided in an aircraft (10) that flies by an electric propulsion device (100), and that conditions the aircraft by using at least one of internal air and external air of the aircraft, a window fogging determination unit (S104, S302) that determines whether a window fogging condition for fogging the window (16) of the flying object is satisfied; an outside air increasing unit (S108, S602) that increases the amount of introduced outside air (Air2) introduced into the inside of the aircraft when the window fogging condition is satisfied; An air conditioning device comprising:

[0183] (Technical thought 2) As the outside air increasing part, An air conditioning device as described in technical idea 1, comprising an outside air mode unit (S108) that switches the operating mode of the propulsion device from an inside air mode for circulating the inside air inside the aircraft to an outside air mode for introducing the outside air into the interior of the aircraft.

[0184] (Technical Thought 3) The window fogging determination unit is A flight determination unit (S201 to S204, S501 to S504, S701 to S706) that determines whether the window fogging condition is satisfied using flight information indicating the flight state of the aircraft; An internal determination unit (S207 to S210, S507 to S510) that determines whether the window fogging condition is satisfied using internal environment information indicating the internal environment of the aircraft; An external determination unit (S205, S206, S505, S506) that determines whether the window fogging condition is satisfied using external environment information indicating the external environment of the aircraft; 3. The air conditioner according to Technical Idea 1 or 2, having at least one of the above.

[0185] (Technical Thought 4) The window fogging determination unit is An inside / outside determination unit (S212, S512) that determines whether the window fogging condition is satisfied using inside / outside difference information indicating a change in an inside / outside difference (P8a) that is a difference between the inside air temperature and the outside air temperature of the flying object; 4. An air conditioner according to any one of Technical Concepts 1 to 3, comprising:

[0186] (Technical Thought 5) The window fogging determination unit is The air conditioner according to any one of Technical Ideas 1 to 4, further comprising a takeoff determination unit (S201, S501) that determines that the window fogging condition is met when the flying object takes off vertically.

[0187] (Technical Thought 6) The window fogging determination unit is The air conditioner according to any one of Technical Ideas 1 to 5, further comprising a landing determination unit (S202, S502) that determines that the window fogging condition is met when the flying object makes a vertical landing.

[0188] (Technical Thought 7) The window fogging determination unit is The air conditioner according to any one of Technical Ideas 1 to 6, further comprising a parameter determination unit (S203 to S208, S210, S212, S503 to S508, S510, S512, S702, S703, S705, S706) that determines whether or not the window fogging condition is satisfied by using a comparison result between window fogging parameters (P1 to P8) related to the window fogging condition and predetermined window fogging determination values ​​(J1 to J8, J1c to J8c).

[0189] (Technical Thought 8) The air conditioner according to Technical Idea 7, further comprising a judgment value correction unit (S301) that corrects predetermined reference judgment values ​​(J1 to J8) related to the window fogging conditions to obtain the window fogging judgment values ​​(J1c to J8c).

[0190] (Technical Thought 9) The judgment value correction unit is a temperature correction unit (S402) that corrects the reference judgment value using a temperature difference (P8b) between the inside air and the outside air before the aircraft takes off; an occupant correction unit (S404) that corrects the reference judgment value using the number of occupants on the aircraft; an outdoor air correction unit (S406) that corrects the reference judgment value using outdoor air quality information indicating the quality of the outdoor air; The air conditioner according to Technical Idea 8, having at least one of the above. [Explanation of symbols]

[0191] 10... eVTOL as an aircraft, 16... window, 100... propulsion device, 110... air conditioning system as an air conditioning device, 150... air conditioning control unit as an air conditioning control device, 151... processor as a processing unit, 153... program as an air conditioning control program, Air2... intake outside air as introduced outside air, J1 to J8... first judgment value to eighth judgment value as window fogging judgment value and reference judgment value, J1c to J8c... first correction value to eighth correction value as window fogging judgment value, P1... Flight altitude as a window fogging parameter, P2...lift speed as a window fogging parameter, P3...rate of change of air pressure as a window fogging parameter, P4...rate of change of outside air temperature as a window fogging parameter, P5...inside air humidity as a window fogging parameter, P6...CO2 concentration as a window fogging parameter, P7...inside air duration as a window fogging parameter, P8...rate of change of inside / outside difference as a window fogging parameter, P8a...inside / outside difference, P8b...inside / outside difference before takeoff as temperature difference, S104...Window fogging determination unit, S108...Outside air increase unit and outside air mode unit, S201 to S204...Flight determination unit, S201...Takeoff determination unit, S202...Landing determination unit, S203 to S208...Parameter determination unit, S205, S206...External determination unit, S207 to S210...Internal determination unit, S210...Parameter determination unit, S212...Inside / outside determination unit and parameter determination unit, S301...Decision value correction unit, S302...Window fogging determination unit, S402...Temperature correction unit, S404...Multiplication air correction unit, S406...outside air correction unit, S501 to S504...flight determination unit, S501...takeoff determination unit, S502...landing determination unit, S503 to S508...parameter determination unit, S505, S506...external determination unit, S507 to S510...internal determination unit, S510...parameter determination unit, S512...inside / outside determination unit and parameter determination unit, S602...outside air increase unit, S701 to S706...flight determination unit, S702, S703, S705, S706...parameter determination unit.

Claims

1. An air conditioning device (110) provided in an aircraft (10) flying by an electric propulsion device (100), for conditioning the aircraft using at least one of internal air and external air of the aircraft, A window fogging determination unit (S104, S302) that determines whether a window fogging condition for fogging the window (16) of the flying object is satisfied; an outside air increasing unit (S108, S602) that increases the amount of introduced outside air (Air2) introduced into the inside of the aircraft when the window fogging condition is satisfied; Equipped with The window fogging determination unit is The air conditioning device has a flight determination unit (S201 to S204, S501 to S504, S701 to S706) that determines whether the window fogging condition is met using flight information including at least one of the flight altitude (P1) of the aircraft and the lift speed (P2), which is the speed at which the aircraft moves in the vertical direction.

2. As the outside air increasing part, 2. The air conditioning device according to claim 1, further comprising an outside air mode unit (S108) that switches the operating mode of the propulsion device from an inside air mode for circulating the inside air inside the flying body to an outside air mode for introducing the outside air into the flying body.

3. The window fogging determination unit is An internal determination unit (S207 to S210, S507 to S510) that determines whether the window fogging condition is satisfied using internal environment information indicating the internal environment of the aircraft; an external determination unit (S205, S206, S505, S506) that determines whether the window fogging condition is satisfied using external environment information indicating the external environment of the aircraft; 3. The air conditioner according to claim 1, further comprising at least one of the following:

4. The window fogging determination unit is an inside / outside determination unit (S212, S512) that determines whether the window fogging condition is satisfied using inside / outside difference information indicating a change in an inside / outside difference (P8a) that is a difference between an inside air temperature and an outside air temperature of the flying object; 3. An air conditioner according to claim 1, further comprising:

5. The window fogging determination unit is 3. The air conditioning system according to claim 1, further comprising a takeoff determination unit (S201, S501) that determines that the window fogging condition is met when the flying object takes off vertically.

6. The window fogging determination unit is 3. The air conditioning system according to claim 1, further comprising a landing determination unit (S202, S502) that determines that the window fogging condition is met when the flying object makes a vertical landing.

7. The window fogging determination unit is 3. The air conditioning device according to claim 1, further comprising a parameter determination unit (S203 to S208, S210, S212, S503 to S508, S510, S512, S702, S703, S705, S706) that determines whether or not the window fogging condition is established using a comparison result between window fogging parameters (P1 to P8) related to the window fogging condition and predetermined window fogging determination values ​​(J1 to J8, J1c to J8c).

8. The air conditioning device according to claim 7, further comprising a judgment value correction unit (S301) that corrects a predetermined reference judgment value (J1 to J8) related to the window fogging condition to obtain the window fogging judgment value (J1c to J8c).

9. The judgment value correction unit is a temperature correction unit (S402) that corrects the reference determination value using a temperature difference (P8b) between the inside air and the outside air before the aircraft takes off; an occupant correction unit (S404) that corrects the reference determination value using the number of occupants on the aircraft; an outdoor air correction unit (S406) that corrects the reference determination value using outdoor air quality information indicating the quality of the outdoor air; 9. The air conditioner of claim 8, further comprising at least one of:

10. An air conditioning control device (150) is provided in an aircraft (10) that flies by an electric propulsion device (100), and controls an air conditioning device (110) that conditions the aircraft using at least one of the inside air and the outside air of the aircraft, A window fogging determination unit (S104, S302) that determines whether a window fogging condition for fogging the window (16) of the flying object is satisfied; an outside air increasing unit (S108, S602) that increases the amount of introduced outside air (Air2) introduced into the inside of the aircraft when the window fogging condition is satisfied; Equipped with The window fogging determination unit is An air conditioning control device having a flight determination unit (S201 to S204, S501 to S504, S701 to S706) that determines whether the window fogging condition is met using flight information including at least one of the flight altitude (P1) of the aircraft and the lift speed (P2), which is the speed at which the aircraft moves in the vertical direction.

11. An air conditioning control program (153) for causing at least one processor (82a) to execute control of an air conditioning device (110) that is provided in an aircraft (10) that flies by an electric propulsion device (100) and that conditions the aircraft by using at least one of the inside air and the outside air of the aircraft, A process of determining whether a window fogging condition for fogging a window (16) of the flying object is satisfied (S104, S302); When the window fogging condition is satisfied, a process of increasing the amount of introduced outside air (Air2) introduced into the inside of the aircraft (S108, S602); A process (S201 to S204, S501 to S504, S701 to S706) for determining whether the window fogging condition is satisfied using flight information including at least one of the flight altitude (P1) of the aircraft and the lift speed (P2) which is the speed at which the aircraft moves in the vertical direction; An air conditioning control program for causing at least one of the processors to execute the above.