JP2016002965A - Vehicle air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out air-conditioning in a cabin so as to satisfy user's intuitive demand.SOLUTION: An air-conditioning control device 50 fixes a blower voltage used to control a blower 12 to a received set value if receiving the set value of the blower voltage by user's operating an operation unit. If determining that the set value of the blower voltage by user's voice input is received, the air-conditioning control device 50 fixes a set value used to control an air-conditioning unit 10 to the set value received by the voice input. If determining that the set value by the user's voice input is received and determining that a condition for estimating that an air-conditioned environment in a cabin has a change is satisfied, the air-conditioning control device 50 cancels using the set value of the blower voltage received by the voice input at a time of controlling the blower 12.

Description

  The present invention relates to a vehicle air conditioner.

  2. Description of the Related Art Conventionally, in a vehicle air conditioner, there is a vehicle air conditioner that adjusts the temperature of air blown from a blower by an evaporator, a heater unit, an air mix door, or the like and blows the air into a vehicle compartment from an outlet (see, for example, Patent Document 1). ).

  In this device, when the user sets the air flow rate of the blower by a manual operation on the operation unit, the electronic control device fixes the actual air flow rate of the air blower to the set air flow rate.

  In other words, once the user sets the air flow rate of the blower to a predetermined amount by manual operation to the operation unit, the actual air flow rate of the blower is set unless the user changes the set value of the air flow rate of the blower by manual operation to the operation unit. Is maintained in the predetermined amount.

JP-A-4-38222

  In the vehicle air conditioner disclosed in Patent Document 1, as described above, once the user sets the air flow rate of the blower by a manual operation on the operation unit, the actual air flow rate of the blower is held at the set air flow rate. . For this reason, the air flow rate of the air blower set by the user's manual operation before getting off is maintained even when the user gets on after that. For this reason, when a user gets on, the air volume of this maintained air blower is not in the user's sense of temperature at all, and there is a high possibility that the user will feel uncomfortable. Therefore, the air conditioning of the vehicle interior that satisfies the user's request cannot be performed.

  An object of this invention is to provide the vehicle air conditioner which can implement the air conditioning of the vehicle interior which satisfy | fills a user's request in view of the said point.

  This invention pays attention to the setting value input with respect to a vehicle air conditioner with a user's voice showing the user's request at that time.

  Therefore, in the first aspect of the present invention, the control means (S13) for controlling the air conditioning unit using the set value for determining the control state of the air conditioning unit (10) for air conditioning the vehicle interior, and the user operation unit (60) ) Operation accepting means (S3) for accepting a set value input by an operation to the user, voice input determining means (S506, S606, S706) for determining whether or not the set value has been input by the user's voice, Operation determination means (S502, S602, S702) for determining whether or not an operation has been performed to set a setting value in the operation unit, and an operation determination that the user has operated to set the setting value in the operation unit When the means determines, the control means determines that the setting value used when controlling the air conditioning unit is the setting value input to the operation unit, and the voice input determination means determines that the setting value has been input. In this case, the control means uses the setting value used when controlling the air conditioning unit as the setting value input by the user's voice, and determines whether or not the condition for estimating that the air conditioning environment in the passenger compartment has changed is satisfied. An environment change determination unit (S504, S604, S704, S541) for determination is provided, and the voice input determination unit satisfies a condition for estimating that the air conditioning environment in the vehicle interior has changed when it is determined that a set value has been input. When the environmental change determination means determines, the control means cancels the use of the set value input by the user's voice when controlling the air conditioning unit.

  According to the first aspect of the present invention, when the user inputs a set value by voice, the control means controls the air conditioning unit using the set value input by the user's voice. Here, the setting value input by the user's voice is considered to indicate the user's intuitive desire at that time. For this reason, an air conditioning unit can be controlled using the setting value which shows a user's intuitive request. Therefore, the air conditioning of the vehicle interior that satisfies the user's needs can be implemented. In other words, the air conditioning of the vehicle interior that satisfies the user's impulsive needs can be implemented by the user's voice input.

  In addition, according to the first aspect of the present invention, when the environment change determining means determines that the condition that the air-conditioning environment in the passenger compartment is estimated to have changed is satisfied, the control means When the control is performed, the setting value input by the user's voice is cancelled. For this reason, when the air conditioning environment in the passenger compartment or the user's own feeling of temperature changes, the control means can return to using the set value input to the operation unit when controlling the air conditioning unit. Become. Accordingly, it is possible to eliminate the troublesomeness of the user operating the operation unit again, and to shorten the implementation time of the user's intuitive request that the fuel consumption / electricity cost is deteriorated.

  Electricity consumption is the travel distance per unit capacity of power energy sources (various power sources, batteries, etc.) in automobiles. The fuel consumption is a travel distance per unit capacity of fuel (gasoline, light oil, etc.) in an automobile.

  According to the second aspect of the present invention, when the environment change determination means determines that the condition estimated that the air conditioning environment in the passenger compartment has changed is satisfied, the control means operates as a setting value used when controlling the air conditioning unit. The setting value used when controlling the air conditioning unit is gradually changed so that the setting value input to the unit is gradually restored.

  According to invention of Claim 2, the control state of an air conditioning unit changes gradually by changing a setting value gradually. Thereby, it can suppress giving an uncomfortable feeling to a user by the change of the control state of an air-conditioning unit.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later. S in parentheses is a step omitted.

It is a figure which shows schematic structure of the vehicle air conditioner in 1st Embodiment of this invention. It is a block diagram which shows the structure of the electric control part of the vehicle air conditioner in the said 1st Embodiment. It is the flowchart which showed an example of the air-conditioning control process of the air-conditioning control apparatus in the said 1st Embodiment. 4 is a flowchart showing a TAO calculation process performed in step 4 of FIG. 3 in the first embodiment. 4 is a flowchart showing a part of blower voltage determination processing performed in step 5 of FIG. 3 in the first embodiment. 4 is a flowchart showing a part of blower voltage determination processing performed in step 5 of FIG. 3 in the first embodiment. 4 is a flowchart showing the remaining blower voltage determination processing performed in step 5 of FIG. 3 in the first embodiment. In the said 1st Embodiment, it is a flowchart which shows a part of suction port mode determination process performed at step 6 of FIG. In the said 1st Embodiment, it is a flowchart which shows the remainder of the suction inlet mode determination process performed by step 6 of FIG. In the said 1st Embodiment, it is a flowchart which shows a part of blower outlet mode determination process performed at step 7 of FIG. In the said 1st Embodiment, it is a flowchart which shows the remainder of the blower outlet mode determination process performed at step 7 of FIG. 4 is a flowchart showing compressor rotation speed determination processing performed in step 8 of FIG. 3 in the first embodiment. In the said 1st Embodiment, it is a flowchart which shows the electric water pump action | operation determination process performed at step 11 of FIG. 6 is a flowchart showing a target evaporator temperature TEO determination process performed in step 12 of FIG. 3 in the first embodiment. In 2nd Embodiment of this invention, it is a flowchart which shows a part of blower voltage determination process. In the said 2nd Embodiment, it is a flowchart which shows the remainder of a blower voltage determination process. 9 is a flowchart illustrating a TAO calculation process in the third embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, parts that are the same or equivalent to each other are given the same reference numerals in the drawings in order to simplify the description.

(First embodiment)
FIG. 1 shows an overall configuration of a vehicle air conditioner 1 according to the present embodiment, and FIG. 2 shows a configuration of an electric control unit of the vehicle air conditioner 1. In the present embodiment, the vehicle air conditioner 1 is applied to a hybrid vehicle that obtains driving force for vehicle travel from an internal combustion engine (engine) EG and a travel electric motor.

  First, the hybrid vehicle of this embodiment will be described. The hybrid vehicle of this embodiment is configured as a so-called plug-in hybrid vehicle that can charge the battery 81 in FIG. 1 with electric power supplied from an external power source (commercial power source) when the vehicle is stopped. In this plug-in hybrid vehicle, the battery 81 is charged from an external power source when the vehicle is stopped before the vehicle starts running. When this is the case, the vehicle travels mainly by the driving force of the traveling electric motor (hereinafter, this operation mode is referred to as an EV operation mode).

  On the other hand, when the remaining amount of power stored in the battery 81 is lower than the reference running remaining amount during vehicle travel, the vehicle travels mainly by the driving force of the engine EG (hereinafter, this operation mode is referred to as the HV operation mode). In this way, by switching between the EV operation mode and the HV operation mode, the fuel consumption of the engine EG is suppressed and the vehicle fuel consumption is improved with respect to a normal vehicle that obtains driving force for vehicle travel only from the engine EG. I am letting.

  Further, the driving force output from the engine EG is used not only for driving the vehicle but also for operating the generator 80 of FIG. And the electric power generated with the generator 80 and the electric power supplied from the external power supply can be stored in the battery 81, and the electric power stored in the battery 81 is not only a traveling electric motor but also a vehicle air conditioner. 1 can be supplied to various in-vehicle devices including an electric component device that constitutes 1.

  Next, the detailed structure of the vehicle air conditioner 1 of this embodiment is demonstrated. The vehicle air conditioner 1 includes an indoor air conditioning unit 10 shown in FIG. 1 and an air conditioning control device 50 shown in FIG.

  As shown in FIG. 1, the indoor air conditioning unit 10 includes an air conditioning case 11, a blower 12, an evaporator 13, a heater core 14, a PTC heater 15, and the like, and is located inside an instrument panel (instrument panel) at the forefront of the vehicle interior. Has been placed. And the indoor air conditioning unit 10 accommodates the air blower 12, the evaporator 13, the heater core 14, the PTC heater 15, etc. in the air conditioning case 11 which forms the outer shell.

  The air conditioning case 11 forms an air passage for blown air that is blown into the vehicle interior, and is formed of a resin (for example, polypropylene) having a certain degree of elasticity and excellent strength. An inside / outside air switching box 20 for switching between the inside air (vehicle compartment air) and the outside air (vehicle compartment outside air) is arranged on the most upstream side of the air flow in the air conditioning case 11.

  More specifically, the inside / outside air switching box 20 is formed with an inside air introduction port 21 for introducing inside air into the air conditioning case 11 and an outside air introduction port 22 for introducing outside air. Further, inside / outside air switching box 20 is an inside / outside air switching door that continuously adjusts the opening areas of inside air introduction port 21 and outside air introduction port 22 to change the air volume ratio between the air volume of the inside air and the air volume of the outside air. 23 is arranged.

  Therefore, the inside / outside air switching door 23 constitutes an air volume ratio changing means for switching the inlet mode for changing the air volume ratio between the air volume of the inside air introduced into the air conditioning case 11 and the air volume of the outside air. More specifically, the inside / outside air switching door 23 is driven by an electric actuator 62 for the inside / outside air switching door 23, and the operation of the electric actuator 62 is controlled by a control signal output from the air conditioning controller 50. The

  Further, the suction port mode determines the outside air introduction rate occupied by outside air from the amount of air introduced into the air conditioning case 11 from the inside air introduction port 21 and the outside air introduction port 22 by the inside / outside air switching door 23. Examples of the inlet mode include an inside air mode, an outside air mode, and a semi-inside air mode.

  The inside air mode is a mode in which the inside air introduction port 21 is fully opened and the outside air introduction port 22 is fully closed and the inside air is introduced into the air conditioning case 11 in order to set the outside air introduction rate to 0%. The outside air mode is a mode in which outside air is mainly introduced into the air conditioning case 11 from inside air and outside air in order to set the outside air introduction rate to 100%, for example. The semi-inside air mode is a mode in which the opening area of the inside air introduction port 21 and the opening area of the outside air introduction port 22 are made the same in order to set the outside air introduction rate to 50%.

  A blower 12 that blows air sucked through the inside / outside air switching box 20 toward the vehicle interior is disposed on the downstream side of the inside / outside air switching box 20. The blower 12 is an electric blower that includes a blower motor 121 and a centrifugal multiblade fan (sirocco fan) 122 and drives the centrifugal multiblade fan 122 by the blower motor 121. A DC motor is used as the blower motor 121 of the present embodiment. The blower 12 blows out temperature-conditioned air from the blowout openings 24 to 26 formed in the air conditioning case 11. The number of rotations (air flow rate) of the blower 12 is controlled by the control voltage output from the air conditioning control device 50.

  An evaporator 13 is disposed on the downstream side of the air flow of the blower 12. The evaporator 13 constitutes a vapor compression refrigeration cycle apparatus 30 together with a compressor (compressor) 31, a condenser 32, a gas-liquid separator 33, an expansion valve 34, and the like.

  The vehicle air conditioner 1 also includes a compressor 31, a condenser 32, a gas-liquid separator 33, an expansion valve 34, and the like.

  The compressor 31 is disposed in the engine room, sucks refrigerant in the refrigeration cycle apparatus 30, compresses it, and discharges it. A fixed capacity type compression mechanism 31a having a fixed discharge capacity is fixed by an electric motor 31b. It is configured as an electric compressor to be driven. The electric motor 31b is a three-phase AC synchronous motor whose operation (number of rotations) is controlled by an AC current output from the inverter 61 (see FIG. 2).

  2 outputs a control signal indicating the target rotational speed Nct of the compressor 31 to the inverter 61, and the inverter 61 supplies an AC voltage having a frequency corresponding to the control signal to the electric motor 31b. Output. Thereby, control of the rotation speed of the electric motor 31b is implemented. And the refrigerant | coolant amount discharged from the compressor 31 is changed by control of this rotation speed. On the other hand, the inverter 61 outputs a signal indicating the power consumption Wcp of the compressor 31 to the air conditioning control device 50.

  The condenser 32 in FIG. 1 is disposed in the engine room, and generates heat between the high-temperature and high-pressure refrigerant discharged from the compressor 31 and the air outside the vehicle (outside air) blown from the blower fan 35 as an outdoor blower. By exchanging, the high-pressure refrigerant is cooled and condensed. The blower fan 35 is an electric blower in which the operating rate, that is, the rotation speed (the amount of blown air) is controlled by the control voltage output from the air conditioning control device 50.

  The gas-liquid separator 33 separates the refrigerant cooled and condensed by the condenser 32 into a gas phase refrigerant and a liquid phase refrigerant, and supplies the liquid phase refrigerant to the expansion valve 34. The expansion valve 34 decompresses the liquid-phase refrigerant supplied from the gas-liquid separator 33.

  The evaporator 13 is a cooling heat exchanger that evaporates the refrigerant decompressed and expanded by the expansion valve 34 and cools the blown air by exchanging heat between the refrigerant and the blown air.

  Further, in the air conditioning case 11 of FIG. 1, on the downstream side of the air flow of the evaporator 13, the heating cold air passage 16 for flowing the air that has passed through the evaporator 13 and the heating cold air passage 16 are bypassed from the evaporator 13. An air passage such as a cold air bypass passage 17 through which the cold air flows, and a mixing space 18 for mixing the air flowing out from the heating cold air passage 16 and the cold air bypass passage 17 are formed.

  In the heating cool air passage 16, a heater core 14 and a PTC heater 15 as a heating device for heating the blown air that has passed through the evaporator 13, that is, the blown air cooled by the evaporator 13, are directed toward the flow direction of the blown air. Arranged in order.

  The heater core 14 heats the air that has passed through the evaporator 13 by exchanging heat between the cooling water (hot water) of the engine EG that outputs the driving force for driving the vehicle and the air (cold air) that has passed through the evaporator 13. It is a heat exchanger for heating.

  Specifically, a cooling water flow path 41 is provided between the heater core 14 and the engine EG, and a cooling water circuit 40 in which the cooling water circulates between the heater core 14 and the engine EG is configured. The cooling water circuit 40 is provided with an electric water pump 42 for circulating the cooling water. The electric water pump 42 is an electric water pump in which the rotation speed (that is, the cooling water circulation amount) is controlled by a control signal output from the air conditioning control device 50.

  Further, the PTC heater 15 has a PTC element (positive characteristic thermistor element), generates heat when electric power is supplied to the PTC element, and serves as an auxiliary heater that heats the air that has passed through the heater core 14. It is. The PTC heater 15 of this embodiment is composed of a plurality of PTC heaters. Specifically, it comprises a first PTC heater 15a, a second PTC heater 15b, and a third PTC heater 15c. The air conditioning control device 50 changes the number of PTC heaters 15 to be energized by switching or the like, thereby controlling the heating capacity of the plurality of PTC heaters 15 as a whole.

  As described above, the evaporator 13 cools the blown air flowing in the air conditioning case 11, while the heater core 14 and the PTC heater 15 heat the blown air. Therefore, the evaporator 13, the heater core 14, and the PTC heater 15 are entirely disposed. As described above, a temperature adjustment mechanism for adjusting the temperature of the air blown from the blowout openings 24 to 26 is configured. The conditioned air whose temperature is adjusted by the temperature adjusting mechanism is blown out from the blowing openings 24 to 26 into the vehicle interior.

  A cold air bypass passage 17 in FIG. 1 is an air passage for guiding the air that has passed through the evaporator 13 to the mixing space 18 without passing through the heater core 14 and the PTC heater 15. Accordingly, the temperature of the blown air mixed in the mixing space 18 varies depending on the air volume ratio of the air passing through the heating cool air passage 16 and the air passing through the cold air bypass passage 17.

  Therefore, in the present embodiment, the amount of cold air that flows into the heating cold air passage 16 and the cold air bypass passage 17 on the downstream side of the air flow of the evaporator 13 and on the inlet side of the heating cold air passage 16 and the cold air bypass passage 17. An air mix door 19 that continuously changes the ratio is disposed. The air mix door 19 is driven by an electric actuator for the air mix door, and the operation of this electric actuator is controlled by a control signal output from the air conditioning control device 50. The air mix door 19 constitutes a temperature adjustment mechanism that adjusts the air temperature in the mixing space 18 (the temperature of the blown air blown into the vehicle interior).

  Further, blowout openings 24 to 26 that blow out the blown air whose temperature is adjusted from the mixed space 18 to the vehicle interior that is the air-conditioning target space are arranged at the most downstream portion of the air flow of the air conditioning case 11. Specifically, as the blowout openings 24 to 26, a face blowout opening 24 that blows conditioned air toward the upper body of the passenger in the vehicle interior, a foot blowout opening 25 that blows conditioned air toward the feet of the occupant, And the defroster blowing opening part 26 which blows off conditioned air toward the inner surface 74a of the vehicle front window glass 74 is provided.

  Further, on the upstream side of the air flow of the face blowing opening 24, the foot blowing opening 25, and the defroster blowing opening 26, a face door 24a and a foot blowing opening 25 for adjusting the opening area of the face blowing opening 24, respectively. A foot door 25a for adjusting the opening area of the defroster door 26a and a defroster door 26a for adjusting the opening area of the defroster blowout opening 26 are disposed.

  The face door 24a, the foot door 25a, and the defroster door 26a are connected to an electric actuator 64 for driving the air outlet mode door via a link mechanism (not shown) and are operated to rotate in conjunction with each other. The operation of the electric actuator 64 is also controlled by a control signal output from the air conditioning controller 50. Thus, the face door 24a, the foot door 25a, the defroster door 26a, and the electric actuator 64 constitute an outlet adjustment device that adjusts the opening areas of the outlet openings 24, 25, and 26, respectively.

Further, the air outlet mode is information indicating which of the air outlets 24, 25, and 26 should be opened by the mode doors 24a, 25a, and 26a. Examples of the air outlet mode include a face mode, a bi-level mode, a foot mode, a foot defroster mode, and a defroster mode.
The face mode is a blowout port mode in which the face blowout opening 24 is fully opened and air is blown out from the face blowout opening 24 toward the upper body of the passenger in the passenger compartment.

  The bi-level mode is an air outlet mode in which both the face air outlet 24 and the foot air outlet 25 are opened and air is blown toward the upper body and the feet of the passengers in the passenger compartment. The foot mode is a blowout mode in which the foot blowout opening 25 is fully opened and the defroster blowout opening 26 is opened by a small opening, and air is mainly blown out from the foot blowout opening 25. The defroster mode is a blowout port mode in which the foot blowout opening 25 is opened by a small opening, the defroster blowout opening 26 is fully opened, and air is blown out from both the foot blowout opening 25 and the defroster blowout opening 26. . The foot defroster mode is an outlet mode in which the foot outlet opening 25 and the defroster outlet opening 26 are opened to the same extent, and air is blown out from both the foot outlet opening 25 and the defroster outlet opening 26.

  Next, the electric control unit of the present embodiment will be described with reference to FIG. The air conditioning control device 50 is an electronic control device including a known microcomputer including a CPU, a ROM, a RAM, and the like and peripheral circuits thereof. The air conditioning control device 50 performs various calculations and processes based on the air conditioning control program stored in the ROM, and controls the operation of various devices connected to the output side.

  On the output side of the air conditioning control device 50, the blower 12, the inverter 61 for the electric motor 31 b of the compressor 31, the blower fan 35 as an outdoor fan, the electric actuator 62 for the inside / outside air switching door (inside / outside air switching door damper) 23, An electric actuator 64 for the air outlet mode doors (air outlet dampers) 24a, 25a, and 26a, the PTC heaters 15a, 15b, and 15c, the electric water pump 42, and the like are connected.

  In addition, the vehicle air conditioner 1 is seated on a driver seat, a steering heater 66 that heats the steering with an electric heater, a seat blower 68 that blows air from a seat skin that contacts the buttocks and back of the occupant in the vehicle seat, and A knee radiant heater 70 that emits radiant heat toward the driver's knee, and a seat heating device 72 that heats the vehicle seat with an electric heater. These devices 66, 68, 70, 72 are provided as air conditioning auxiliary equipment (in other words, auxiliary cooling / heating devices) for supplementing the feeling of air conditioning that the passenger feels about the air conditioning in the passenger compartment. The operations of the air conditioning auxiliary devices 66, 68, 70 and 72 are controlled by a control signal output from the air conditioning control device 50.

  Further, on the input side of the air-conditioning control device 50, an inside air sensor (indoor air temperature sensor) 51 for detecting an inside air temperature (temperature in the vehicle interior) Tr, and an outside air sensor (for detecting outside air temperature (air temperature outside the vehicle interior) Tam) ( (Air temperature sensor outside the passenger compartment) 52, a solar radiation sensor 53 that detects the amount of solar radiation Ts in the passenger compartment, a discharge pressure sensor 55 (discharge pressure detection means) that is a refrigerant pressure sensor that detects the refrigerant discharge pressure Pc of the compressor 31, and the like Sensor groups are connected.

  Further, on the input side of the air conditioning control device 50, in addition to the sensor group shown in FIG. 2, a discharge temperature sensor (discharge temperature detecting means) that detects the discharge refrigerant temperature Tc of the compressor 31, An evaporator temperature sensor (evaporator temperature detection means) that detects the temperature of the blown air (evaporator temperature) Te, an intake temperature sensor that detects the temperature Tsi of the refrigerant sucked into the compressor 31, and a heater core from the engine EG A sensor group (not shown) such as a cooling water temperature sensor (cooling water temperature detecting means) for detecting the cooling water temperature TW of the engine cooling water that has flowed out to 14 is also connected.

  The evaporator temperature sensor specifically detects the heat exchange fin temperature of the evaporator 13. Of course, the evaporator temperature sensor may detect the temperature of other parts of the evaporator 13 or may directly detect the temperature of the refrigerant itself flowing through the evaporator 13.

  Further, operation signals from various air conditioning operation switches provided on the operation panel 60 disposed near the instrument panel in the front part of the vehicle interior are input to the input side of the air conditioning control device 50. The operation panel 60 includes various types of air conditioning operation switches such as an air conditioner switch, a compressor ON / OFF switch 60a, an auto mode switch 60b, a suction port mode switch, an operation mode switching switch, a blower outlet mode switching switch, and a blower. An air volume setting switch, a passenger compartment temperature setting switch, and the like are provided.

  The air conditioner switch is a switch for instructing to start and stop the operation of the vehicle air conditioner 1. The compressor ON / OFF switch 60a is a switch for instructing operation start and stop of the compressor 31.

The auto mode switch 60b is operated by a user's manual operation, in a manual mode, an auto mode of the blower 12, an auto mode of the inside / outside air switching door 23,
It is a switch for setting any mode among the auto mode of the mode doors 24a, 25a, 26a, the auto air conditioning mode, and the like.

  The suction port mode switch is a switch for switching the suction port mode by a user's manual operation. The operation mode switching switch is a switch for switching between a normal mode and an eco mode by a user's manual operation. A blower outlet mode changeover switch is a switch for changing blower outlet mode by a user's manual operation.

  The blower air volume setting switch is a switch for setting the air volume blown from the blower 12 by a user's manual operation. The vehicle interior temperature setting switch is a switch for setting the vehicle interior target temperature Tset by a user's manual operation. The target temperature Tset is a target temperature of the vehicle interior air temperature. The operation panel 60 is also provided with a display panel 60c for displaying information such as a set temperature to a user in the vehicle interior.

  Furthermore, a microphone 71 is connected to the air conditioning control device 50 of the present embodiment. Information such as the user's voice is input to the microphone 71. The air conditioning control device 50 performs voice recognition processing on the user's voice input through the microphone 71. For this reason, the air-conditioning control apparatus 50 repeatedly performs the process which receives setting values, such as preset temperature, blower outlet mode, suction inlet mode, the ventilation volume (blower voltage) of the air blower 12, by a user's audio | voice input for every step 3. It will be. The set value functions as a set value that determines the control state of the air conditioning unit 10.

  The air-conditioning control device 50 is electrically connected to an engine control device 90 that is an engine computer that controls the operation of the engine EG, and the air-conditioning control device 50 and the engine control device 90 are configured to be able to electrically communicate with each other. Has been. Thereby, based on the detection signal or operation signal input into one control apparatus, the other control apparatus can also control the operation | movement of the various apparatuses connected to the output side. For example, the engine EG can be operated by the air conditioning control device 50 outputting an operation request signal for the engine EG to the engine control device 90. Further, when the engine EG is operating for air conditioning, the engine EG can be stopped by the air conditioning control device 50 not outputting an operation request signal for the engine EG.

  The air-conditioning control device 50 and the engine control device 90 are configured such that control means for controlling various control target devices connected to the output side is integrally configured, but controls the operation of each control target device. The configuration (hardware and software) constitutes control means for controlling the operation of each control target device. For example, in the air-conditioning control device 50, the configuration that controls switching between the operation and stop of the PTC heater 15 constitutes the PTC heater control means.

  Next, the air conditioning control process by the air conditioning control device 50 will be described with reference to FIGS. FIG. 3 is a flowchart showing an example of the air conditioning control process of the air conditioning control device 50.

  First, when the ignition switch is turned on and DC power is supplied from the battery to the air conditioning control device 50 through the ignition switch, a control program stored in advance in the memory is executed. When the ignition switch is turned on, it is a time when the vehicle enters a travelable state from a parked state by a user operation.

  In step 1, the contents stored in the data processing memory built in the microcomputer in the air conditioning control device 50 are initialized (initialized), and the process proceeds to step 2. In step 2, the operation signal of the operation panel 60 is read. Specific operation signals include a setting temperature Tset indicating a target temperature of air in the vehicle interior set by the vehicle interior temperature setting switch, an operation signal for the auto mode 60b, an operation signal for the intake port mode switch 60c, and the like. is there.

  Next, in step 3, sensor signals input from various sensors are received. In steps 2 and S3, various data are read into the data processing memory. As sensor signals, for example, an inside air temperature (vehicle interior temperature) Tr detected by the inside air sensor 51, an outside air temperature Tam detected by the outside air sensor 52, an amount of solar radiation Ts detected by the solar radiation sensor 53, and a temperature sensor after the evaporator are detected. There are a post-evaporator temperature (Te) and an engine coolant temperature Tw detected by a coolant temperature sensor. In addition, in step 3, voice recognition processing is performed on the user's voice input through the microphone 71 to set temperature, air outlet mode, air inlet mode, air flow rate of the blower 12 (blower voltage), and the like. The process of accepting the set value is performed.

  Next, in step 4, the target blowing temperature TAO is calculated using the set temperature Tset. The target blowing temperature TAO is the temperature of the blown air from the blowing openings 24 to 26 required to maintain the air temperature in the passenger compartment at the set temperature Tset. Details of the calculation of the target outlet temperature TAO will be described later. In addition to this, a control value indicating the target rotational speed of the electric water pump 42 is calculated from the target blowing temperature TAO and signals from the various sensors.

  Next, in step 5, a blower voltage determination process for determining a blower voltage applied from the battery to the blower motor 121 is performed. The blower voltage plays a role of controlling the number of rotations of the blower motor 121, that is, the amount of air blown by the blower 12. Details of the blower voltage determination process will be described later.

  Next, in step 6, a suction port mode determination process is executed. Thereby, the suction port (namely, suction port mode) which takes in air in the inside / outside air switching box 20 of the indoor air-conditioning unit 10 is determined. The details of the suction port mode determination process will be described later.

  In the next step 7, an outlet mode determination process is performed. Thereby, the blowing opening part which blows air out of the blowing opening parts 24-26 of the air-conditioning case 11 into a vehicle interior is determined. Details of the air outlet mode determination process will be described later.

  In the next step 8, a compressor rotational speed determination process described later is performed. Details of the compressor rotation speed determination process will be described later.

  In the next step 9, processing for determining the number of operating PTC heaters 15 (also simply referred to as PTC) constituting the electric heater is performed. For example, the number of operation of the PTC heater 15 is determined according to a preset map, and is increased as the engine coolant temperature Tw is lower. In step 9, processing for determining whether to operate the air conditioning auxiliary devices 66, 68, 70, 72 such as the steering heater 66 is also performed.

  Next, in step 10, a required water temperature determination process is performed. The required water temperature determination process determines the required water temperature of the engine cooling water based on the target outlet temperature TAO or the like in order to use the engine cooling water as a heat source such as heating and anti-fogging. Then, based on the required coolant temperature of the engine cooling water, it is determined whether an engine-on request for requesting the engine control device 90 to start the engine EG is required.

  Next, in step 11, an electric water pump operation determination process is performed. The electric water pump operation determination process is a process for determining on / off of the electric water pump 42 (see FIG. 1) based on the engine coolant temperature Tw and the like. The details of the electric water pump operation determination process will be described later.

  Next, in step 12, the target evaporator temperature TEO (that is, the target evaporator temperature TEO) is determined. This target evaporator temperature TEO is a target temperature of the evaporator temperature Te. Details of the target evaporator temperature TEO determination process will be described later.

  Next, in step 13, various actuators 12, 61, 35, 62, 64, 15 a, 15 b, 15 c, and 42 are displayed so that the control states calculated or determined in steps 4 to S 12 are obtained. A control signal is output to the panel 60c, the engine control device 90, and the like. For example, the set temperature determined in step 410 of FIG. 4 described later is output to the display panel 60c.

  Next, in step 14, it is determined whether or not the time that has elapsed since the start of step 2 (hereinafter referred to as “elapsed time”) is longer than the control period T (that is, a certain time). The control period T is a predetermined time. For example, if the elapsed time is longer than the control period T, it is determined as YES in step 14 and the process proceeds to step 2.

  On the other hand, when the elapsed time is shorter than the control cycle T, it is determined as NO in Step 14 and Step 14 is repeated. This waits until the elapsed time is longer than the control period T. Thereafter, when the elapsed time becomes longer than the control period T, it is determined as YES in Step 14 and the process proceeds to Step 2. By such step 14, each process of step 2, S3, S4 ... S14 is repeatedly performed for every fixed period. In the present embodiment, the control cycle T is 250 ms.

  Next, the details of each step of the air conditioning control device 50 will be described in more detail.

  First, the TAO calculation process (step 4 in FIG. 3) will be described with reference to FIG.

  In step 400, the set temperature before the set temperature is corrected by a voice instruction in the present step 410 (that is, the set temperature obtained in the previous step 410) is set as a temporary set temperature. In the present embodiment, the target temperature Tset set in the vehicle interior temperature setting switch is used as the initial value of the provisional set temperature. For this reason, immediately after the start of the air conditioning control process, the target temperature Tset set in the vehicle interior temperature setting switch is displayed on the display panel 60c.

Next, when at least one of the following (1), (2), (3), and (4) is determined as YES in step 401, the process proceeds to step 402.
(1) It is determined whether or not the ignition switch is off. The ignition switch is a power switch for turning on / off the traveling engine. When the ignition switch is off, it is determined as YES. When the ignition switch is on, it is determined as NO.
(2) It is determined whether or not the target temperature Tset in the vehicle interior has been set by a user's manual operation on the vehicle interior temperature setting switch.

Specifically, the target temperature Tset (n) read from the vehicle interior temperature setting switch in the nth step 3 and the target temperature Tset (n) read from the vehicle interior temperature setting switch in the (n−1) th step 3. When -1) is different, it is determined that the target temperature Tset in the passenger compartment is set by the user's manual operation to the passenger compartment temperature setting switch, and YES is determined. When the target temperature Tset (n) and the target temperature Tset (n−1) are the same, it is determined that the target temperature Tset in the vehicle interior is not set by the user's manual operation to the vehicle interior temperature setting switch, and NO is determined. . Symbols in parentheses indicate the number of times the step is executed.
(3) It is determined whether or not the user has operated the auto mode switch 60b to instruct the auto air conditioning mode. The auto air conditioning mode is a mode in which the blower 12, the inside / outside air switching door 23, and the mode doors 24a, 25a, and 26a are automatically controlled. When the user operates the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as YES. When the user is not operating the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as NO.
(4) It is determined whether or not the user has operated the blower air volume setting switch to stop (turn off) the blower 12. When the user operates the blower air volume setting switch to stop (turn off) the blower 12, the determination is YES. When the user is not operating the blower air volume setting switch so as to stop (turn off) the blower 12, NO is determined.

  If YES is determined in at least one of the above (1), (2), (3), and (4), YES is determined in step 401.

  For example, when the target temperature Tset in the vehicle interior is set by a user's manual operation to the vehicle interior temperature setting switch, the target temperature Tset (n) and the target temperature Tset (n−1) are different. For this reason, it determines with YES in step 401. FIG. Accordingly, in step 402, the sound correction setting value (n) = 0 is set. Symbols in parentheses indicate the number of times step 4 is executed. The sound correction setting value (n) is the sound correction setting value calculated in step 410 last time.

  When all of the above determinations (1), (2), (3), and (4) determine NO, step 401 determines NO.

  Next, in step 403, based on the detected value of the inside air sensor 51, has the vehicle interior temperature Tr changed by a predetermined temperature (for example, 2 ° C.) or more since the last time an instruction for the set temperature Tset was received from the user by voice? Determine whether or not. Thereby, it is determined whether or not the air-conditioning environment in the passenger compartment has changed since the previous instruction of setting temperature was received from the user by voice.

  At this time, if the vehicle interior temperature Tr has changed by more than a predetermined temperature since the last time the instruction for the set temperature was received from the user, the air conditioning in the vehicle interior from the time when the instruction for the set temperature was received from the user last time by voice. If the environment has changed, YES is determined in step 403. Accordingly, in step 404, the sound correction setting value (n) = 0 is set, and the process proceeds to the next step 405.

  On the other hand, when the change in the passenger compartment temperature Tr from when the instruction for the set temperature is received by voice from the user last time is less than the predetermined temperature, the inside of the passenger compartment from the time when the instruction for the preset temperature is received by voice from the user last time. Assuming that the air-conditioning environment has not changed, NO is determined in step 403 and the process proceeds to the next step 405.

  Next, in step 405, it is determined whether or not an instruction for the set temperature Tset is received from the user through the microphone 71 by voice this time. If an instruction for the set temperature Tset is received from the user by voice, YES is determined.

  Here, the instruction of the set temperature Tset indicates an instruction to increase the set temperature Tset or an instruction to decrease the set temperature Tset.

  Therefore, in the next step 407, it is determined whether or not the instruction of the set temperature Tset received this time is an instruction to increase the set temperature Tset.

  Here, if NO is determined in step 401 and NO is determined in step 403, and if the instruction of the set temperature Tset accepted this time is an instruction to increase the set temperature Tset, the set temperature Tset is set to a predetermined temperature. Assuming that a correction value to be increased (for example, 1 ° C.) has been received, YES is determined in step 407.

  In this case, a value obtained by adding a predetermined temperature (for example, 1 ° C.) to the sound correction setting value (n−1) is set as a sound correction setting value (n) (= sound correction setting value (n−1) + 1 ° C.) (step 408). The sound correction setting value (n−1) is a sound correction setting value calculated in any one of the (n−1) th steps 402, 404, 408, and 409.

  On the other hand, if NO is determined in step 401 and NO is determined in step 403, and if the instruction of the set temperature Tset accepted this time is an instruction to lower the set temperature Tset, the set temperature Tset is set to a predetermined temperature ( For example, if a correction value to be lowered is received, NO is determined in step 407.

  In this case, a value obtained by subtracting a predetermined temperature (for example, 1 ° C.) from the audio correction setting value (n) is set as the audio correction setting value (n) (= audio correction setting value (n−1) −1 ° C.) (step 408). ).

  As described above, when the user has not set the target temperature Tset in the passenger compartment by manual operation, YES is determined in step 405 as an instruction to correct the set temperature Tset (that is, a correction value) is received from the user by voice input. Then, the sound correction setting value (n) is calculated based on the sound correction setting value (n−1) and the correction value. Then, the calculated sound correction set value (n) and the provisional set temperature are added to obtain a set temperature Tset (= sound correction set value (n) + temporary set temperature) (step 410).

  Thereafter, in step 403, when the vehicle interior temperature Tr changes by a predetermined temperature or more after the instruction of the set temperature is received from the user by voice, YES is set in step 404 and the voice correction set value (n) = 0. To do. In this case, in step 410, the set temperature Tset is set as a temporary set temperature.

  Further, if NO is determined in steps 401 and 403 and NO is determined in step 405 that the instruction of the set temperature Tset is not received from the user through the microphone 71 by voice, the voice correction setting value (n -1) and the provisional set temperature are added to obtain a set temperature Tset (= sound correction set value (n-1) + temporary set temperature) (step 410).

  Further, if the user sets the target temperature Tset in the passenger compartment by manual operation and determines YES in step 401, in step 406, the sound correction set value (n) = 0 is set and the set temperature Tset is set to the temporary set temperature ( = Set temperature Tset).

  In this way, the set temperature Tset is calculated by any one of steps 406 and 410. Therefore, every time the set temperature Tset is calculated in any one of steps 406 and 410, display information indicating the calculated set temperature Tset is output to the display panel 60c. The set temperature Tset displayed on the display panel 60c is updated every time the set temperature Tset is calculated.

  Next, in step 411, Tset, Tr, Tam, and Ts are substituted into the following mathematical formula F1 stored in advance to calculate the target blowing temperature TAO.

  The target blowing temperature TAO is the blowing air temperature of the blowing openings 24, 25, and 26 that is necessary for the detected temperature of the inside air sensor 51 to maintain the set temperature Tset regardless of fluctuations in the outside air temperature and the amount of solar radiation.

TAO = Kset * Tset-Kr * Tr-Kam * Tam-Ks * Ts + C (F1)
Here, Tset is a set temperature calculated in one of steps 406 and 410, Tr is the inside air temperature, Tam is the outside air temperature, and Ts is the amount of solar radiation. Kset, Kr, Kam, and Ks are gains, and C is a correction constant for the whole. Step 411 in FIG. 4 shows a specific example of Formula F1 in which Kset = 7, Kr = 3, Kam = 1.1, Ks = 1.5, and C = 45.

  In addition to this, the target blowing temperature TAO, the post-evaporator temperature Te, and the engine cooling water temperature Tw are substituted into Formula F2 to obtain the mixing ratio SW (%). The mixing ratio SW (%) is a percentage indicating the ratio of the cold air flowing through the cold air bypass passage 17 and the hot air blown out from the heating cold air passage 16.

SW = (TAO−Te) / (Tw−Te) × 100 (F2)
Here, the target position of the air mix door 19 is set in order to realize the mixing ratio SW (%). Therefore, in this embodiment, a control signal for the air mix door actuator indicating the target position of the air mix door 19 is calculated.

  Further, a control value indicating the target rotational speed of the electric water pump 42 is calculated based on the target blowing temperature TAO and signals from the various sensors.

  As described above, the target blowing temperature TAO, the position of the air mix door 19, and the target rotational speed of the electric water pump 42 are determined by the set temperature Tset calculated by either one of steps 406 and 410.

  Next, the blower voltage determination process (step 5 in FIG. 3) will be described with reference to FIGS.

  First, in step 500 of FIG. 5, it is determined whether or not the auto mode of the blower 12 is set for the auto mode switch 60b. The auto mode of the blower 12 is a mode for automatically controlling the blower 12. At this time, when the manual mode of the blower 12 is set for the auto mode switch 60b, NO is determined in step 500.

  Here, in step 501, a temporary blower voltage is determined by the blower voltage of the blower 12 read from the blower air volume setting switch in step 3.

  The blower air volume setting switch sets one of the blower voltages among Hi, M3, M2, M1, and Lo by a user's manual operation. The blower voltage is a voltage applied to the blower 12 in order to drive the blower 12.

  Hi, M3, M2, M1, and Lo each indicate a blower voltage, and correspond to target air flow rates of the different blowers 12 respectively. The blower voltage is set so as to satisfy the relationship of Hi> M3> M2> M1> Lo. As the blower voltage increases, the target air flow rate of the blower 12 increases. Thereby, the target air volume of the blower 12 can be set by a user's manual operation with respect to the blower air volume setting switch.

Next, when it is determined in step 502 that at least one of the following (1), (2), (3), and (4) is YES, the process proceeds to step 503.
(1) When the ignition switch is off, it is determined as YES. When the ignition switch is on, it is determined as NO.
(2) It is determined whether or not the user has set the target air volume (that is, the blower voltage) of the blower 12 by a manual operation on the blower air volume setting switch. Specifically, the blower voltage (n) read from the blower air volume setting switch in the nth step 3 and the blower voltage (n−1) read from the blower air volume setting switch in the (n−1) th step 3. Are different from each other, it is determined as YES because the target air volume (that is, the blower voltage) of the blower 12 is set by the user's manual operation to the blower air volume setting switch. On the other hand, when the blower voltage (n) and the blower voltage (n−1) are the same, it is determined as NO because the target air volume (that is, the blower voltage) of the blower 12 is not set.
(3) When the user operates the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as YES. When the user is not operating the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as NO.
(4) When the user operates the blower air volume setting switch to stop (turn off) the blower 12, the determination is YES. When the user is not operating the blower air volume setting switch so as to stop (turn off) the blower 12, NO is determined.

  If YES is determined in at least one of the above (1), (2), (3), and (4), YES is determined in step 401.

  For example, when the user changes the blower voltage from Lo to Hi by manual operation on the blower air volume setting switch between the timing of executing step 3 of the nth time and the timing of executing step 3 of the (n-1) th time The blower voltage (n) is different from the blower voltage (n−1).

  For this reason, it determines with YES in step 502. FIG. Accordingly, in step 503, the sound correction voltage (n) = 0 is set, and the process proceeds to the next step 504. The sound correction voltage (n) is a correction value for correcting the temporary blower voltage in steps 509 and 510 described later.

  If it is determined NO in all the determinations (1), (2), (3), and (4), NO is determined in step 502. Accordingly, in step 504, based on the detected value of the inside air sensor 51, whether or not the vehicle interior temperature Tr has changed by a predetermined temperature (for example, 2 ° C.) or more since the last time the voice instruction was received from the user. Determine whether. Thereby, it is determined whether or not the air-conditioning environment in the passenger compartment has changed since the last time the instruction of the air volume was received from the user by voice.

  At this time, if the vehicle interior temperature Tr has changed by more than a predetermined temperature since the previous instruction from the user for the blowing amount (ie, blower voltage), the previous instruction for the blowing amount was received from the user. Since the air conditioning environment in the passenger compartment has changed from time to time, YES is given in step 504. Accordingly, in step 505, the sound correction voltage (n) = 0 is set, and the process proceeds to the next step 506.

  On the other hand, when the fluctuation range of the vehicle interior temperature Tr from when the instruction for the blowing amount is received from the user last time by voice is less than the predetermined temperature, from when the instruction for the blowing amount is received from the user last time by voice. Assuming that the air-conditioning environment in the passenger compartment has not changed, NO is determined in step 504, and the process proceeds to the next step 506.

  Next, in step 506, it is determined whether or not an instruction for the air flow rate has been received from the user by voice input this time. That is, it is determined whether or not an instruction for the air flow rate is received from the user by voice input in the n-th step 3. If an instruction for the air flow rate is received from the user by voice input this time, YES is determined. Here, the instruction | indication of the ventilation volume has shown the instruction | indication which raises the ventilation volume of the air blower 12, or the instruction | indication which reduces the ventilation volume of the air blower 12. FIG.

  Therefore, in the next step 507, it is determined whether or not the instruction of the blown amount received this time is an instruction to increase the blown amount of the blower 12.

  Here, when NO is determined in step 502 and NO is determined in step 504, and the instruction of the air flow received this time is an instruction to increase the air flow of the blower 12, the target air flow (that is, Assuming that a correction value for increasing the blower voltage) by a predetermined air flow rate is received, YES is determined in step 508. Accordingly, a value obtained by adding a predetermined voltage (for example, 2V) to the sound correction voltage (n−1) is set as a sound correction voltage (n) (= sound correction voltage (n−1) + 2V) (step 509).

  On the other hand, if NO is determined in step 502 and NO is determined in step 504, and the instruction of the air flow received this time is an instruction to decrease the air flow of the blower 12, the target air flow is set to the predetermined air flow. If the correction value to be decreased is received, NO is determined in step 508. Accordingly, a value obtained by subtracting a predetermined voltage (for example, 2V) from the voice correction voltage (n-1) is set as the voice correction voltage (n) (= voice correction voltage (n-1) -2V) (step 510).

  Thus, when the user has not set the blower voltage by manual operation, when the instruction of the air flow indicating the correction value of the target air flow is received by the user's voice input, the voice of one of steps 509 and 510 is A correction voltage is calculated, and a temporary blower voltage is added to the calculated voice correction voltage to calculate a blower voltage (= temporary blower voltage + voice correction voltage) (step 511).

  Thereafter, assuming that the air conditioning environment in the passenger compartment has changed since the last time the voice instruction was received from the user, if YES in step 504, as described above, the voice correction voltage (n) = 0 in step 505. . In this case, in step 507, the blower voltage is set as a temporary blower voltage.

  If NO is determined in steps 502 and 504 and NO is determined in step 506 that an instruction for the air flow rate is not received from the user through the microphone 71 by voice input, the voice correction voltage (n−1) is obtained. The blower voltage (n) (= sound correction voltage (n−1) + temporary blower voltage) is obtained by adding the provisional blower voltage (step 505).

  Further, when the user sets the blower voltage by manual operation and determines YES in step 501, in step 507, the voice correction voltage (n) = 0 is set, and the blower voltage (n) is set to a temporary blower voltage (= blower voltage). (N)) (step 507).

Furthermore, when the auto mode of the blower 12 is set for the auto mode switch 60b in step 500, it is determined as YES. Then, in step 520 of FIG. 6, f (TAO) that is a base value of the target air flow rate of the blower 12 is determined according to the target blowing temperature TAO. f (TAO) corresponds to the target air flow rate of the blower calculated by the target air flow rate calculating means of the present invention.

  Specifically, a map in which f (TAO) and the target outlet temperature TAO are specified on a one-to-one basis is stored in advance in the memory. In the map, when the target blowing temperature TAO is in the intermediate temperature range, f (TAO) becomes the minimum air blowing amount. Become bigger. As the target blowing temperature TAO is lowered from the intermediate temperature range, f (TAO) gradually increases from the minimum blowing amount.

  In the present embodiment, different maps for the normal mode and the eco mode are stored in advance as maps for determining f (TAO) based on the target outlet temperature TAO. In the normal mode map, f (TAO) is larger than the eco mode map. Either the normal mode or the eco mode is set by the operation mode switch.

Next, when at least one of the following (5), (6), (7), and (8) is determined as YES in step 521, the process proceeds to step 522.
(5) When the ignition switch is off, it is determined as YES. When the ignition switch is on, it is determined as NO.
(6) It is determined whether or not the user has set a target air volume (that is, a blower voltage) of the blower 12 by a manual operation on the blower air volume setting switch. Specifically, the blower voltage (n) read from the blower air volume setting switch in the nth step 3 and the blower voltage (n−1) read from the blower air volume setting switch in the (n−1) th step 3. Are different from each other, it is determined as YES because the target air volume (that is, the blower voltage) of the blower 12 is set by the user's manual operation to the blower air volume setting switch. On the other hand, when the blower voltage (n) and the blower voltage (n−1) are the same, it is determined as NO because the target air volume (that is, the blower voltage) of the blower 12 is not set.
(7) When the user operates the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as YES. When the user is not operating the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as NO.
(8) When the user operates the blower air volume setting switch to stop (turn off) the blower 12, the determination is YES. When the user is not operating the blower air volume setting switch so as to stop (turn off) the blower 12, NO is determined.

  If YES is determined in at least one of the above (5), (6), (7), and (8), YES is determined in step 521. Accordingly, in step 522, the sound correction level (n) = 0 is set. The sound correction level (n) is a correction value of the air flow rate used in step 526 described later.

  When all of the above (5), (6), (7), and (8) are determined as NO, it is determined as NO at step 521. Accordingly, in step 523, whether the vehicle interior temperature Tr has changed by a predetermined temperature (for example, 2 ° C.) or more from the time when the instruction of the blowing amount was received from the user by voice based on the detected value of the inside air sensor 51 last time. Determine whether or not.

  At this time, when the fluctuation range of the passenger compartment temperature Tr from the previous time when the instruction for the air flow rate is received from the user is greater than or equal to the predetermined temperature, the time when the instruction for the air flow rate is received from the user last time. In step 523, it is determined that the air conditioning environment in the passenger compartment has changed. Accordingly, in step 524, the sound correction level (n) = 0 is set and the process proceeds to the next step 525.

  On the other hand, when the fluctuation range of the vehicle interior temperature Tr after receiving the instruction of the blowing amount by voice from the user last time is less than the predetermined temperature, the passenger compartment from the time of receiving the instruction of the blowing amount by voice from the user last time. In step 523, NO is determined that the air conditioning environment has not changed, and the process proceeds to the next step 525.

  Next, in step 525, it is determined whether or not an instruction for the amount of blown air is received from the user this time. That is, it is determined whether or not an instruction for the air flow rate is received from the user by voice input in the n-th step 3.

  At this time, if an instruction for the air flow rate is not received from the user this time by voice, NO is determined in step 525. At this time, the blower level obtained by adding f (TAO) to the sound correction level (n−1) calculated in one of the previous (ie, (n−1) th) steps 528 and 529 is set as a temporary blower level ( n) (step 526).

  On the other hand, in the above step 525, when an instruction of the blowing amount is received from the user by voice this time, it is determined as YES.

  Here, the instruction | indication of ventilation volume has shown the instruction | indication which raises ventilation volume, or the instruction | indication which reduces ventilation volume. Therefore, in the next step 527, it is determined whether or not the instruction of the blowing amount accepted this time is an instruction to increase the blowing amount.

  Here, it is determined as NO in step 521, and it is determined as NO in step 523, assuming that the fluctuation range of the vehicle interior temperature Tr after receiving the instruction of the blowing amount by voice from the user last time is less than the predetermined temperature. If the instruction of the air flow received this time is an instruction to increase the air flow, YES is determined in step 508. In this case, assuming that a correction value for increasing the target air flow rate (that is, the blower voltage) by a predetermined air flow rate is received, a value obtained by adding a predetermined air flow rate (for example, 5 levels) to the sound correction level (n-1) is sound corrected. Level (n) (= sound correction set value (n−1) +5 level) is set (step 528).

  On the other hand, it is determined as NO in step 521, and it is determined as NO in step 523, assuming that the fluctuation range of the vehicle interior temperature Tr after receiving the instruction of the blast amount by voice from the user last time is less than the predetermined temperature. When the instruction of the air flow received in step S5 is an instruction to reduce the air flow, NO is determined in step 527. In this case, assuming that a correction value for reducing the target air flow rate by a predetermined air flow rate is received, a value obtained by subtracting a predetermined air flow rate (for example, 5 levels) from the sound correction level (n−1) is set to the sound correction level (n) (= (Sound correction level (n-1) -5 level) (step 529).

  When the current sound correction level (n) is calculated in this way, the blower level obtained by adding the current sound correction level (n) and f (TAO) is set as a temporary blower level (n) (step 530).

  Thereafter, if the air conditioning environment in the passenger compartment has changed since the last time a voice instruction was received from the user, if YES in step 523, the voice correction level (n) = 0 is set in step 524 as described above. . In this case, in step 526, the blower voltage is set to f (TAO).

  If NO is determined in steps 521 and 523, and NO is determined in step 525 that the instruction for the air flow rate is not received from the user through the microphone 71 by voice input, the voice correction level (n-1) is obtained. The provisional blower level (n) (= sound correction level (n−1) + f (TAO)) is obtained by adding f (TAO) (step 526).

  Further, if the user sets the target air flow rate by manual operation and determines YES in step 521, in step 526, the sound correction level (n) = 0 is set, and f (TAO) is set to a temporary blower level (= f ( TAO)).

  Thus, the temporary blower level (n) can be determined in steps 526 and 530.

  Next, in step 531 of FIG. 7, the warm-up air volume f (Tw) is calculated according to the temperature detected by the cooling water temperature sensor (water temperature of the heater core 14).

  In the next step 532, it is determined whether or not the outlet mode is any one of the foot mode (FOOT), the bi-level mode (B / L), and the foot differential mode (F / D).

  When the air outlet mode is any one of the foot mode (FOOT), the bi-level mode (B / L), and the foot differential mode (F / D), the process proceeds to step 533. In this step 533, the smaller one of the temporary blower level calculated in steps 526 and 530 and the value of f (Tw) is selected as the blower level. In subsequent step 535, the blower level selected in step 533 is converted into a blower voltage using the map of FIG.

  If it is determined in step 532 that the air outlet mode is a face mode or a defroster mode other than the foot mode, the bi-level mode, and the foot differential mode, NO is determined, and the process proceeds to step 534 to set the temporary blower level as the blower level. To do. The set blower level is converted into a blower voltage on the map (step 536).

  Next, suction port mode determination processing (step 6 in FIG. 3) will be described with reference to FIGS.

  Specifically, step 6 in FIG. 3 is executed in accordance with FIGS. As shown in FIG. 8, in step 600, it is determined whether or not the auto mode of the inside / outside air switching door 23 is set for the auto mode switch 60b. The auto mode of the inside / outside air switching door 23 is a mode for automatically controlling the inside / outside air switching door 23. At this time, when the manual mode of the inside / outside air switching door 23 is set, NO is determined in step 600.

  Next, in step 601, a temporary suction port mode is determined according to the suction port mode set by the suction port mode switch.

  Specifically, when the outside air mode (FRS mode) is set by the suction port mode switch, the temporary suction port mode is set to the outside air mode. On the other hand, when the inside air mode (REC mode) is set by the inlet port mode switch, the temporary inlet mode is set to the inside air mode.

Next, when at least one of the following (1), (2), (3), and (4) is determined as YES in step 602, the process proceeds to step 603.
(1) When the ignition switch is off, it is determined as YES. When the ignition switch is on, it is determined as NO.
(2) It is determined whether or not the user has set the suction port mode by manual operation to the suction port mode switch. Specifically, the suction port mode (n) read from the suction port mode switch in the nth step 3 and the suction port mode (n−1) read from the suction port mode switch in the (n−1) th step 3. ) Is different from), it is determined that the suction port mode is set by the user's manual operation to the suction port mode switch, and YES is determined. On the other hand, when the suction port mode (n) and the suction port mode (n−1) are the same, it is determined as NO because the suction port mode is not set by the user with respect to the suction port mode switch.
(3) When the user operates the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as YES. When the user is not operating the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as NO.
(4) When the user operates the blower air volume setting switch to stop (turn off) the blower 12, the determination is YES. When the user is not operating the blower air volume setting switch so as to stop (turn off) the blower 12, NO is determined.

  If YES is determined in at least one of the above (1), (2), (3), and (4), YES is determined in step 602. Accordingly, in step 603, the temporary inlet mode is set to the outlet mode.

  If it is determined NO in the determinations (1), (2), (3), and (4) above, NO is determined in step 602. Accordingly, in step 604, based on the detected value of the inside air sensor 51, has the vehicle interior temperature Tr changed by a predetermined temperature (for example, 2 ° C.) or more since the time when the instruction for the suction port mode was received by voice from the previous user? Determine whether or not. Thereby, it is determined whether or not the air conditioning environment in the passenger compartment has changed since the instruction of the suction port mode was received from the user by voice.

  At this time, if the vehicle interior temperature Tr has changed by more than a predetermined temperature since the last time a voice command was received from the user, the air conditioning in the vehicle compartment is started after the voice command is received from the user. If the environment has changed, YES is determined in step 604. Accordingly, in step 605, the temporary inlet mode is set to the inlet mode.

  On the other hand, when the fluctuation range of the vehicle interior temperature Tr from when the user previously received a voice instruction from the user is less than the predetermined temperature, the user has previously received the voice inlet mode instruction from the user. Since the air-conditioning environment in the passenger compartment has not changed from time to time, NO is determined in the step 604 and the process proceeds to the next step 606.

  Next, in step 606, it is determined whether or not an instruction for the suction port mode has been received from the user this time by voice input. That is, it is determined whether or not an instruction for the suction port mode has been received by voice input from the user in the n-th step 3.

  If an instruction for the suction port mode is received from the user by voice input this time, YES is determined. Then, in the next step 607, it is determined whether or not the instruction of the suction port mode accepted this time is an instruction to execute the outside air mode (FRS mode).

  Here, if NO is determined in step 602, and NO is determined in step 604, and if the instruction of the suction port mode accepted this time is an instruction to execute the outside air mode, YES is determined in step 608. The suction port mode is set to the outside air mode (step 609).

  On the other hand, if NO is determined in step 602 and NO is determined in step 604, and if the instruction of the suction port mode accepted this time is an instruction to execute the inside air mode, the determination is NO in step 608 and suction is performed. The mouth mode is set to the inside air mode (step 609a).

  In this way, when the user does not set the suction port mode by manual operation, when the suction port mode is accepted by the user's voice input, one of the outside air mode and the inside air mode is selected in either one of steps 609 and 609a. Is determined as the inlet mode.

  Thereafter, if the air-conditioning environment in the passenger compartment has changed since the last time the user received a voice command for the suction port mode, the answer is YES in step 604. As described above, the temporary suction port mode is determined as the suction port mode. .

  Further, if it is determined NO in Steps 602 and 604 and NO is determined in Step 606 that the instruction of the suction port mode is not received by voice input from the user through the microphone 71, the temporary suction port mode is changed to the suction port. Determine as the mode. That is, the suction port mode determined in the (n-1) th steps 603, 605, 607, 609, and 609a is held (step 607).

  Further, when the user sets the suction port mode by manual operation and determines YES in step 601, the temporary suction port mode is determined as the suction port mode in step 603 (step 603).

  In this way, the inlet mode can be determined in steps 603, 605, 607, 609, and 609a.

Furthermore, when the auto mode of the inside / outside air switching door 23 is set for the auto mode switch 60b in step 600, it is determined YES. Then, in step 610 of FIG. 9, a temporary inlet mode is determined according to the target outlet temperature TAO.

  Specifically, when the target outlet temperature TAO is in the intermediate temperature range, the semi-inside air mode is determined as a temporary inlet mode. The semi-inside air mode is a control mode in which the opening area of the inside air introduction port 21 and the opening area of the outside air introduction port 22 are made the same by the inside / outside air switching door 23 and the outside air introduction rate is 50%. The outside air introduction rate (%) is a percentage indicating the ratio of outside air to the amount of air introduced into the air conditioning case 11 from the inside air introduction port 21 and the outside air introduction port 22.

  When the target outlet temperature TAO is higher than the intermediate temperature range, the outside air mode (outside air introduction mode) is determined as a temporary suction port mode. The outside air mode is a suction port mode in which the inside air introduction port 21 is fully closed by the inside / outside air switching door 23 and the outside air introduction port 22 is fully opened so that the outside air introduction rate is 100%.

  When the target outlet temperature TAO is lower than the intermediate temperature range, the inside air mode (the inside air circulation mode) is determined as a temporary suction port mode. The inside air mode is a suction port mode in which the inside air introduction port 21 is fully opened by the inside / outside air switching door 23, the outside air introduction port 22 is fully closed, and the outside air introduction rate is 0%.

  As described above, based on the target outlet temperature TAO, any one of the outside air mode, the inside air mode, and the semi-inside air mode is determined.

Next, when at least one of the following (5), (6), (7), and (8) is determined as YES in step 521, the process proceeds to step 522.
(5) When the ignition switch is off, it is determined as YES. When the ignition switch is on, it is determined as NO.
(6) It is determined whether or not the suction port mode is set by the user's manual operation to the blower air volume setting switch.

Specifically, the suction port mode (n) read from the suction port mode switch in the nth step 3 and the suction port mode (n−1) read from the suction port mode switch in the (n−1) th step 3. ) Is different from), it is determined that the suction port mode is set by the user's manual operation to the suction port mode switch, and YES is determined. When the suction port mode (n) and the suction port mode (n-1) are the same, it is determined as NO because the suction port mode is not set by the user's manual operation to the suction port mode switch.
(7) When the user operates the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as YES. When the user is not operating the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as NO.
(8) When the user operates the blower air volume setting switch to stop (turn off) the blower 12, the determination is YES. When the user is not operating the blower air volume setting switch so as to stop (turn off) the blower 12, NO is determined.

  If YES is determined in at least one of the above (5), (6), (7), and (8), YES is determined in step 611. Accordingly, in step 612, the temporary inlet mode is determined as the inlet mode.

  When all of the above (5), (6), (7), and (8) are determined as NO, it is determined as NO at step 611. Accordingly, in step 613, based on the detected value of the inside air sensor 51, the vehicle interior temperature Tr has changed by a predetermined temperature (for example, 2 ° C.) or more from the time when the instruction for the suction port mode was received from the user by voice last time. It is determined whether or not.

  At this time, when the fluctuation range of the passenger compartment temperature Tr from the time when the instruction for the suction port mode is received from the user last time by voice, the instruction for the suction mode is received from the user last time by voice. Since the air-conditioning environment in the passenger compartment has changed from time to time, YES is determined in step 613. Accordingly, in step 614, the temporary inlet mode is determined as the inlet mode.

  On the other hand, when the fluctuation range of the passenger compartment temperature Tr after receiving the voice instruction from the user last time is less than the predetermined temperature, from the time when the voice instruction from the user was accepted last time by voice. In step 613, it is determined that the air conditioning environment in the passenger compartment has not changed, and the process proceeds to the next step 615.

  Next, in step 615, it is determined whether or not an instruction for the suction port mode is received from the user by voice this time. That is, it is determined whether or not an instruction for the suction port mode has been received by voice input from the user in the n-th step 3.

  At this time, if an instruction for the suction port mode is not received from the user by voice this time, NO is determined in step 615. At this time, the suction port mode determined in any one of the previous (that is, (n-1) th) steps 612, 614, 616, 618, and 619 is determined as the suction port mode (step 616).

  On the other hand, in the above step 615, it is determined that the instruction for the suction port mode is received from the user this time by voice. Then, in the next step 617, it is determined whether or not the instruction of the suction port mode accepted this time is the outside air mode (FRS mode).

  Here, it is determined as NO in step 611, and it is determined as NO in step 613, assuming that the fluctuation range of the passenger compartment temperature Tr after receiving the instruction of the suction port mode by voice from the user last time is less than the predetermined temperature, Furthermore, when the instruction | indication of the suction inlet mode received this time is an instruction | indication which implements an external air mode, it determines with YES in step 617. FIG. In this case, assuming that a set value for implementing the suction port mode has been received, the outside air mode is determined as the suction port mode (step 618).

  On the other hand, it is determined as NO in step 611, and it is determined as NO in step 613, assuming that the fluctuation range of the vehicle interior temperature Tr after receiving the instruction of the suction port mode by voice from the user last time is less than the predetermined temperature. When the instruction of the suction port mode accepted this time is an instruction to execute the inside air mode, NO is determined in step 617. In this case, assuming that a set value for executing the inside air mode is received, the inside air mode is determined as the suction port mode (step 619).

  Thus, if the instruction | indication of the suction inlet mode by audio | voice input from a user is received, one of the outside air mode and inside air mode will be determined as a suction inlet mode.

  Then, if the air conditioning environment in the passenger compartment has changed since the last time the user received a voice command for the suction port mode, the answer is YES in step 613. As described above, in step 614, the temporary suction port mode is changed to the suction port mode. Decide as.

  If it is determined NO in steps 611 and 613 and NO is determined in step 615 that an instruction of the suction port mode is not received from the user through voice input through the microphone 71, the (n-1) th step. The suction port mode determined in any one of steps 612, 614, 616, 618, and 619 is determined as the suction port mode.

  Further, when the user sets the suction port mode by manual operation and determines YES in step 611, in step 612, the temporary suction port mode is set to the suction port mode.

  Thus, the inlet mode can be determined in steps 612, 614, 616, 618, 619.

  Next, the outlet mode determination process (step 7 in FIG. 3) will be described with reference to FIGS.

  Specifically, step 7 of FIG. 3 is executed according to FIGS. 10 and 11. As shown in FIG. 10, in step 700, it is determined whether or not the auto mode of the mode doors 24a, 25a, and 26a is set for the auto mode switch 60b. The auto mode of the mode doors 24a, 25a, 26a is a mode for automatically controlling the mode doors 24a, 25a, 26a. At this time, when the manual mode of the mode doors 24a, 25a, and 26a is set, NO is determined in step 700.

  Next, in step 701, a temporary air outlet mode is determined by setting the air outlet mode changeover switch.

  When the face mode is set by the air outlet mode changeover switch, the face mode is set to the temporary air outlet mode. When the bi-level mode is set by the air outlet mode changeover switch, the bi-level mode is set to the temporary air outlet mode. When the foot mode is set by the air outlet mode changeover switch, the foot mode is set to the temporary air outlet mode. When the foot differential mode is set by the air outlet mode changeover switch, the foot differential mode is set to the temporary air outlet mode.

Next, when at least one of the following (1), (2), (3), and (4) is determined as YES in step 702, the process proceeds to step 603.
(1) When the ignition switch is off, it is determined as YES. When the ignition switch is on, it is determined as NO.
(2) It is determined whether or not the air outlet mode is set by a user's manual operation to the air outlet mode switch.

Specifically, the outlet mode (n) read from the outlet mode switch in the nth step 3 and the outlet mode (n−1) read from the outlet mode switch in the (n−1) th step 3. ) Is different from), it is determined as YES because the air outlet mode is set by the user's manual operation to the air outlet mode switch. On the other hand, when the blower outlet mode (n) and the blower outlet mode (n-1) are the same, it determines with NO, since the blower outlet mode is not set.
(3) When the user operates the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as YES. When the user is not operating the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as NO.
(4) When the user operates the blower air volume setting switch to stop (turn off) the blower 12, the determination is YES. When the user is not operating the blower air volume setting switch so as to stop (turn off) the blower 12, NO is determined.

  If YES is determined in at least one of the above (1), (2), (3), and (4), YES is determined in step 602. Accordingly, in step 703, the temporary air outlet mode is set as the air outlet mode.

  When all of the above determinations (1), (2), (3), and (4) determine NO, step 702 determines NO. Accordingly, in step 704, whether or not the vehicle interior temperature Tr has changed by a predetermined temperature (for example, 2 ° C.) or more from the time when the instruction of the air outlet mode is received from the previous user by voice based on the detected value of the inside air sensor 51. Determine whether or not. Thereby, it is determined whether or not the air conditioning environment in the passenger compartment has changed since the instruction of the air outlet mode was received from the user by voice.

  At this time, if the vehicle interior temperature Tr has changed by more than a predetermined temperature since the last time a voice instruction was received from the user, the air conditioning in the passenger compartment is started from the time the voice instruction is received from the user. If the environment has changed, YES is determined in step 704. Accordingly, in step 705, the provisional outlet mode is set to the outlet mode.

  On the other hand, when the fluctuation range of the passenger compartment temperature Tr from when the instruction for the air outlet mode was received from the user last time by voice is less than the predetermined temperature, the instruction for the air outlet mode was received from the user last time. Assuming that the air conditioning environment in the passenger compartment has not changed from time to time, step 704 is NO and the process proceeds to the next step 706.

  Next, in step 706, it is determined whether or not an instruction for the air outlet mode has been received from the user this time by voice input. That is, it is determined whether or not an instruction for the air outlet mode has been received by voice input from the user in Step 3 of the nth time.

  If an instruction for the air outlet mode is received from the user by voice input this time, YES is determined in step 706.

  If NO is determined in steps 702 and 704 and YES is determined in step 706, the air outlet mode is determined in step 708 according to the instruction of the air outlet mode accepted this time.

For example, when it is determined in step 708 that the instruction of the outlet mode accepted this time is an instruction for performing the face mode, the face mode is determined as the outlet mode (step 709).
If it is determined in step 708 that the instruction of the outlet mode accepted this time is an instruction for performing the bi-level mode, the bi-level mode is determined as the outlet mode (step 710).

  In step 708, when it is determined that the instruction of the outlet mode accepted this time is an instruction for performing the foot mode, the foot mode is determined as the outlet mode (step 711).

  If it is determined in step 708 that the instruction of the outlet mode accepted this time is an instruction for implementing the foot differential mode, the foot differential mode is determined as the outlet mode (step 712).

  If it is determined in step 708 that the instruction for the outlet mode accepted this time is an instruction for performing the defroster mode, the defroster mode is determined as the outlet mode (step 712).

  As described above, when NO is determined in steps 702 and 704 and YES is determined in step 706, the air outlet mode is determined in step 708 according to the instruction of the air outlet mode accepted this time.

  Thereafter, if the air-conditioning environment in the passenger compartment has changed since the last time a voice instruction was received from the user, the answer is YES in step 704. As described above, the provisional outlet mode is determined as the outlet mode. (Step 705).

  If it is determined NO in steps 702 and 704 and NO is determined in step 706 that an instruction for the air outlet mode has not been received from the user through voice input through the microphone 71, the (n-1) th step. The air outlet mode determined in step 7 is determined as the current air outlet mode (step 707). That is, the air outlet mode determined in the (n-1) th step 7 is held as the current air outlet mode.

  Further, when the user sets the air outlet mode by manual operation and determines YES in step 702, in step 703, the temporary air outlet mode is determined as the air outlet mode.

  In this manner, the outlet mode can be determined in steps 703, 705, and 707 to 713.

  Furthermore, when the auto mode of the mode doors 24a, 25a, 26a is set for the auto mode switch 60b in step 700, it is determined YES. Then, in step 720 of FIG. 11, a temporary suction port mode is determined according to the target outlet temperature TAO.

  Specifically, when the target outlet temperature TAO is in the intermediate temperature range, the bi-level is determined as the temporary outlet mode. When the target blowout temperature TAO is higher than the intermediate temperature range, the foot mode is determined as the temporary blowout port mode. When the target blowout temperature TAO is lower than the intermediate temperature range, the face mode is determined as a temporary blowout mode.

  Thus, when the auto mode of the mode doors 24a, 25a, and 26a is set, any one of the foot mode, the bi-level mode, and the face mode is temporarily set based on the target blowing temperature TAO. The air outlet mode is determined.

Next, when at least one of the following (5), (6), (7), and (8) is determined as YES in step 721, the process proceeds to step 722.
(5) When the ignition switch is off, it is determined as YES. When the ignition switch is on, it is determined as NO.
(6) It is determined whether or not the air outlet mode has been set by the user's manual operation to the air outlet mode switch.

Specifically, the outlet mode (n) read from the outlet mode switch in the nth step 3 and the outlet mode (n−1) read from the outlet mode switch in the (n−1) th step 3. ) Is different from), it is determined as YES because the air outlet mode is set by the user's manual operation to the air outlet mode switch. When the air outlet mode (n) and the air outlet mode (n-1) are the same, it is determined as NO because the air outlet mode is not set by the user's manual operation to the air outlet mode switch.
(7) When the user operates the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as YES. When the user is not operating the auto mode switch 60b to instruct the auto air conditioning mode, it is determined as NO.
(8) When the user operates the blower air volume setting switch to stop (turn off) the blower 12, the determination is YES. When the user is not operating the blower air volume setting switch so as to stop (turn off) the blower 12, NO is determined.

  If YES is determined in at least one of the above (5), (6), (7), and (8), YES is determined in step 721. Accordingly, in step 722, the provisional outlet mode is determined as the outlet mode.

  When all of the above (5), (6), (7), and (8) are determined as NO, it is determined as NO at step 721. Accordingly, in step 723, based on the detection value of the inside air sensor 51, the vehicle interior temperature Tr has changed by a predetermined temperature (for example, 2 ° C.) or more from the time when the instruction for the air outlet mode was received from the user by voice last time. It is determined whether or not.

  At this time, when the fluctuation range of the passenger compartment temperature Tr from the time when the instruction for the air outlet mode is received from the user in the previous time is equal to or higher than the predetermined temperature, the instruction for the air outlet mode is received from the user last time. Since the air-conditioning environment in the passenger compartment has changed from time to time, it is determined as YES in Step 723. Accordingly, in step 724, the provisional outlet mode is determined as the outlet mode.

  On the other hand, when the fluctuation range of the vehicle interior temperature Tr after receiving the instruction of the outlet mode by voice from the user last time is less than the predetermined temperature, from the time of receiving the instruction of the outlet mode by voice from the user last time Assuming that the air-conditioning environment in the passenger compartment has not changed, NO is determined in step 723 and the process proceeds to the next step 725.

  Next, in step 725, it is determined whether or not an instruction for the air outlet mode has been received from the user by voice this time. That is, it is determined whether or not an instruction for the air outlet mode has been received by voice input from the user in Step 3 of the nth time.

  At this time, if an instruction for the air outlet mode is not received from the user by voice this time, NO is determined in step 725. At this time, the blower outlet mode determined in the previous (ie, (n-1) th) step 7 is determined as the current blower outlet mode (step 726). That is, the air outlet mode determined in the previous step 7 is held as the current air outlet mode.

  On the other hand, when the instruction of the air outlet mode is received from the user this time by voice in the above step 725, it is determined as YES.

  If NO is determined in steps 721 and 723 and YES is determined in step 725, the air outlet mode is determined in step 727 according to the instruction of the air outlet mode accepted this time.

For example, when it is determined in step 727 that the instruction for the air outlet mode accepted this time is an instruction for performing the face mode, the face mode is determined as the air outlet mode (step 728).
If it is determined in step 727 that the instruction for the outlet mode accepted this time is an instruction for performing the bi-level mode, the bi-level mode is determined as the outlet mode (step 729).

  When it is determined in step 727 that the instruction of the outlet mode accepted this time is an instruction for performing the foot mode, the foot mode is determined as the outlet mode (step 730).

  If it is determined in step 727 that the instruction for the outlet mode accepted this time is an instruction for implementing the foot differential mode, the foot differential mode is determined as the outlet mode (step 731).

  If it is determined in step 727 that the instruction for the outlet mode accepted this time is an instruction for performing the defroster mode, the defroster mode is determined as the outlet mode (step 732).

  As described above, when NO is determined in steps 721 and 723 and YES is determined in step 725, the air outlet mode is determined in step 727 according to the instruction of the air outlet mode accepted this time.

  Thereafter, if the air-conditioning environment in the passenger compartment has changed since the last time the instruction for the air outlet mode was received from the user by voice, the answer is YES in step 723. As described above, the temporary air outlet mode is determined as the air outlet mode. (Step 724).

  If it is determined NO in steps 721 and 723 and NO is determined in step 725 that an instruction for the air outlet mode is not received from the user through voice input through the microphone 71, the (n-1) th step. The air outlet mode determined at 7 is determined as the air outlet mode (step 726).

  Further, when the user sets the air outlet mode by manual operation and determines YES in step 721, in step 722, the temporary air outlet mode is determined as the air outlet mode.

  In this way, the outlet mode can be determined in steps 722, 724, 726, and 728 to 732.

  Next, the compressor rotation speed determination process (step 8) will be described. Step 8 is specifically executed according to FIG.

  As shown in FIG. 12, first, in step 800, when the compressor ON / OFF switch 60a is turned on, the compressor mode is set to the ON mode, and when the compressor ON / OFF switch 60a is turned off, Set the compressor mode to OFF mode.

  Next, in step 801, it is determined whether or not the compressor mode is the ON mode. When the compressor mode is the OFF mode, the rotational speed of the current compressor (compressor) 31 is set to 0 (zero) (step 802). When the compressor mode is the ON mode, in the next step 803, the rotational speed change amount Δf_c is obtained.

  The rotational speed change amount Δf_c is a value that is set so that the deviation (= TEO−Te) between the target evaporator temperature TEO and the evaporator temperature Te approaches zero while preventing the evaporator 13 from forming frost. The rotational speed change amount Δf_c indicates the difference between the compressor rotational speed N (n) calculated in the current step 808 and the compressor rotational speed N (n−1) calculated in the previous step 808. n and (n-1) are integers indicating the number of executions of steps 2-13. n indicates the number of executions of Steps 2 to 13 at this time, and (n−1) indicates the number of executions of Steps 2 to 13 at the previous time.

  Step 803 in FIG. 12 describes a fuzzy rule table used as a rule. In this rule table, the deviation En (En = TEO (n−1) −Te) between the target evaporator temperature TEO (n−1) determined in the previous step 12 (see FIG. 3) and the evaporator temperature Te (n). (N)) and a deviation change rate EDOT (EDOT = En− (En−1)) obtained by subtracting the previously calculated deviation En−1 from the currently calculated deviation En.

  The target evaporator temperature TEO (n−1) is the target evaporator temperature TEO calculated in the (n−1) th step 12. The evaporator temperature Te (n) is the evaporator temperature Te read from the evaporator temperature sensor in the n-th step 3. The deviation En-1 is a deviation (= TEO (n-2) -Te (n-1)) between the target evaporator temperature TEO (n-2) and the evaporator temperature Te (n-1). The target evaporator temperature TEO (n-2) is the target evaporator temperature TEO calculated in step 12 of the (n-2) th time. The evaporator temperature Te (n−1) is the evaporator temperature Te read from the evaporator temperature sensor in the (n−1) th step 3.

  In the following step 804, it is determined whether or not the operation mode of the vehicle air conditioner 1 is the eco mode. Specifically, when the economy switch provided on the operation panel 60 is turned on, it is determined that the operation mode is set to the eco mode. On the other hand, when the economy switch is turned off, it is determined that the operation mode is not set to the eco mode. The eco mode is an operation mode in which the vehicle air conditioner 1 performs an energy saving operation, and the eco mode is set and released by switching the economy switch of the operation panel 60.

  When it is determined that the operation mode of the vehicle air conditioner 1 is the eco mode, in step 806, the MAX rotational speed is determined to be 7000 rpm, and the process proceeds to step 807. On the other hand, when it is determined that the operation mode of the vehicle air conditioner 1 is not the eco mode, in step 804, the MAX rotational speed is determined to be 10000 rpm and the process proceeds to step 807. The MAX rotation speed is an upper limit value of the compressor rotation speed. As a result, in the eco mode, the upper limit value of the compressor rotation speed is set low to reduce the air conditioning power.

  In the subsequent step 807, based on the value obtained by subtracting the compressor power consumption (also referred to as electric compressor power consumption) from the air-conditioning use permission power, that is, the value of “air-conditioning use permission power-compressor power consumption”, the air-conditioning control device 50 in advance. Referring to the control map of FIG. 5 stored in FIG. 5, the upper limit value f of the rotational speed change amount (air-conditioning use permission power-compressor power consumption) is determined.

  The air-conditioning use permission power is “power that is permitted to be used for air-conditioning out of the power that can be used in the entire vehicle” and is output from the power control device (not shown) to the air-conditioning control device 50. The power control device is communicably connected to the air conditioning control device 50, and the power to be distributed to various electrical devices in the vehicle according to the power supplied from the power supply outside the vehicle or the power stored in the battery 81. Make a decision.

  In the present embodiment, the air-conditioning use permission power is calculated as follows. First, provisional air conditioning use permission power and air conditioning usable power are calculated, and the smaller value of the provisional air conditioning use permission power and the air conditioning use permission power is set as the air conditioning use permission power.

  Temporary air-conditioning use permission electric power is calculated as follows. When it is not in the eco mode and the remaining power SOC of the battery 81 is not less than 20%, the provisional air-conditioning use permission power is determined to be 8000 W. When it is in the eco mode, or when the remaining power SOC of the battery 81 is less than 20%, the provisional air-conditioning use permission power is determined to be 4000 W.

  The air conditioning usable power is calculated by the following formula F3.

Air conditioning usable power = Maximum supply power-Power consumption other than air conditioning (F3)
The maximum power supply is the maximum power that can be supplied by the battery 81, and the power consumption other than air conditioning is the power consumed in applications other than air conditioning.

  In step 807, specifically, the upper limit f (rotation air-conditioning permission power-compressor power consumption) of the rotation speed change amount is determined as follows. As shown in Step 807 of FIG. 12, in the minimum range of air conditioning use permission power-compressor power consumption (in this embodiment, -1000 W or less), the upper limit f of the rotational speed change amount (air conditioning use permission power-compressor). (Power consumption) is determined to be a negative value (-300 rpm in the present embodiment).

  Further, in the maximum region of air conditioning use permission power-compressor power consumption (1000 W or more in the present embodiment), the upper limit f of the amount of change in rotation speed (air conditioning use permission power-compressor power consumption) is a positive value (this In the embodiment, it is determined to be +300 rpm.

  Further, in the intermediate range of air conditioning use permission power-compressor power consumption (in this embodiment, -1000 W or more and 1000 W or less), the upper limit value of the rotation speed change amount according to the increase in air conditioning use permission power-compressor power consumption. f (Air-conditioning use permission power-compressor power consumption) is increased.

  In the subsequent step 808, the rotational speed change amount Δf of the compressor 31 is calculated by the following mathematical formula F4, and the process proceeds to step 809.

Δf = MIN (Δf_c, f (air-conditioning use permission power-compressor power consumption)) (F4)
MIN (Δf_c, f (air-conditioning use permission power-compressor power consumption)) in Formula F4 means a smaller value of Δf_c and f (air-conditioning use permission power-compressor power consumption).

  In the subsequent step 809, the current compressor speed (compressor speed) is calculated by the following equation F5.

Current compressor speed = MIN {(previous compressor speed + Δf), MAX speed}} (F5)
The previous compressor speed means the compressor speed calculated in the (n-1) th step 809. The current compressor speed means the compressor speed calculated in the n-th step 809. The MIN {(previous compressor rotation speed + Δf), MAX rotation speed} in the formula F5 means a smaller value of the previous compressor rotation speed + Δf and the MAX rotation speed.

  Thus, each time step 808 is executed, the smaller value of (previous compressor rotation speed + Δf) and MAX rotation speed is selected.

  Here, when Δf_c is selected as Δf, the current compressor rotation speed (ie, the deviation between the target evaporator temperature TEO and the evaporator temperature Te is made close to zero while preventing frosting of the evaporator 13, ie, The compressor rotation speed calculated in the n-th step 809 can be calculated.

  On the other hand, by selecting f (air-conditioning use permission power-compressor power consumption) as Δf, the refrigerant discharge capacity of the compressor 31 can be reduced to reduce the compressor power consumption, and consequently the air-conditioning power can be reduced. Can be made.

  Next, the electric water pump operation determination process (step 11 in FIG. 3) will be described. Step 11 is specifically performed according to FIG. As shown in FIG. 13, when this control is started, it is determined in step 1101 whether or not the engine coolant temperature (water temperature) Tw detected by the coolant temperature sensor is higher than the evaporator temperature Te. If it is determined that the engine coolant temperature Tw is equal to or lower than the evaporator temperature Te (NO) (Tw <Te), a request to turn off the electric water pump 42, that is, an electric water pump OFF request is determined in step 1102, and this control is performed. Exit.

  If it is determined in step 1101 that the coolant temperature Tw detected by the coolant temperature sensor is relatively low and the engine coolant temperature Tw is equal to or lower than the evaporator temperature Te, when the engine coolant is passed through the heater core 14, In order to lower the blowing temperature, the electric water pump 42 is turned off in step 1102.

  On the other hand, if it is determined as YES in step 1101 because the engine coolant temperature Tw is higher than the post-evaporator temperature Te, it is determined in step 1103 whether or not the blower 12 of FIG. 1 is on (operated). . If the blower 12 is in a stopped state (that is, the blower 12 is not turned on), it is determined as NO, the process proceeds to step 1102, an electric water pump OFF request is determined, and this control is finished. If the blower 12 is in an operating state (that is, the blower 12 is turned on), the process proceeds to step 1104, a request to turn on the electric water pump 42, that is, an electric water pump ON request is determined, and this control is terminated.

  That is, when the blower 12 is off (stopped) when the engine coolant temperature Tw is relatively high, the electric water pump 42 is turned off for fuel saving. On the other hand, when the blower 12 is operated, an electric water pump ON request is made. Thereby, even when the engine is off, the amount of heat that the engine coolant has can be used for air conditioning. Therefore, since the blowout temperature rises and the blowout temperature can be brought close to the target blowout temperature TAO, it is possible to mitigate the decrease in the room temperature even when the engine is off.

  Next, the target evaporator temperature TEO determination process (step 12 in FIG. 3) will be described.

  Step 12 is specifically executed according to FIG. As shown in FIG. 14, when this control is started, in step 1201, based on the target blowout temperature TAO determined in step 4 (see FIG. 3), referring to the control map shown in FIG. 14, f (TAO) Determine the value. The value of f (TAO) is used as the target evaporator temperature TEO as it is. The control map of FIG. 7 is stored in advance in the air conditioning control device 50.

  Specifically, as shown in the control map of FIG. 14, the target evaporator temperature TEO (TEO = f (TAO)) is set to a low temperature in the extremely low temperature range of the target blowing temperature TAO. In the extremely high temperature range of the target outlet temperature TAO, the target evaporator temperature TEO is increased. In the intermediate temperature range of the target blowing temperature TAO, the target evaporator temperature TEO is raised according to the increase of the target blowing temperature TAO. The control map in FIG. 9 is set so that the target evaporator temperature TEO is equal to or lower than the dew point temperature of the air flowing into the evaporator 13.

  Note that the processing in each step of FIGS. 4 to 14 described above constitutes means for realizing each function. The same applies to the flowcharts of FIGS.

  Next, an outline of the operation of the vehicle air conditioner 1 of the present embodiment will be described.

  First, as described above, the air conditioning control device 50 obtains the mixing ratio SW (%) based on the target outlet temperature TAO, the post-evaporator temperature Te, and the engine coolant temperature Tw. Further, the air conditioning control device 50 calculates a target position of the air mix door 19 for realizing the mixing ratio SW (%), and outputs a control signal indicating the calculated target position to the air mix door actuator. Thereby, the air mix door 19 is controlled by the air mix door actuator and is rotationally driven to the target position.

  The air conditioning control device 50 outputs an operation control signal for operating the electric water pump 42 to the electric water pump 42 when the electric water pump ON request is determined in step 11 in FIG. 3 described above. At this time, the air conditioning control device 50 controls the rotational speed of the electric water pump 42. For this reason, the electric water pump 42 is operated and the cooling water can be circulated through the cooling water passage 41 between the heater core 14 and the engine EG.

  The air-conditioning control device 50 outputs a stop control signal for stopping the electric water pump 42 to the electric water pump 42 when the electric water pump OFF request is determined in step 11 in FIG. 3 described above. For this reason, the electric water pump 42 can be stopped and the circulation of the cooling water can be stopped.

  The air conditioning control device 50 outputs a control signal indicating the blower voltage determined in step 5 in FIG. 3 described above to the blower motor 121. For this reason, the blower motor 121 is controlled by the air-conditioning control apparatus 50, and the rotation speed of the blower motor 121 approaches the target rotation speed. Thereby, the air blower 12 can generate the air volume according to the blower voltage.

  The air conditioning control device 50 outputs a control signal indicating the suction port mode determined in step 6 in FIG. For this reason, the electric actuator 62 is controlled by the air conditioning control device 50 to drive the inside / outside air switching door 23. Thereby, the suction port mode determined in step 6 is realized.

  The air conditioning control device 50 outputs a control signal indicating the air outlet mode determined in step 7 in FIG. 3 described above to the electric actuator 64. For this reason, the electric actuator 64 is controlled by the air-conditioning control apparatus 50, and drives the mode door required for the determined outlet mode among the face door 24a, the foot door 25a, and the defroster door 26a. Thereby, the blower outlet mode determined by step 7 in FIG. 3 mentioned above is implement | achieved.

  The air conditioning control device 50 outputs the control signal indicating the target rotational speed to the inverter 61 with the current compressor rotational speed calculated in step 8 in FIG. For this reason, inverter 61 is controlled by air-conditioning control device 50, and outputs an alternating current for realizing a target number of rotations to electric motor 31b. Therefore, the electric motor 31b can rotate the compression mechanism 31a at the target rotational speed. Thereby, the air-conditioning control apparatus 50 controls the refrigerant | coolant amount (namely, the cooling capacity of the evaporator 13) which flows into the evaporator 13 by controlling the rotation speed of the compressor 31. FIG.

  Here, the compressor 31 draws in the refrigerant from the refrigerant outlet side of the evaporator 13, compresses it, and discharges it. The condenser 32 cools and condenses the high temperature and high pressure refrigerant discharged from the compressor 31. Then, the gas-liquid separator 33 separates the refrigerant cooled and condensed by the condenser 32 into a gas phase refrigerant and a liquid phase refrigerant. The expansion valve 34 decompresses and expands the liquid-phase refrigerant supplied from the gas-liquid separator 33. The evaporator 13 evaporates the refrigerant decompressed and expanded by the expansion valve 34 and cools the blown air by exchanging heat between the refrigerant and the blown air.

  The air conditioning control device 50 outputs to the PTC heater 15 a control signal for driving the number of PTC heaters 15 determined in step 9 in FIG. For this reason, the PTC heater 15 generates heat.

  Thus, the air-conditioning control device 50 controls the air mix door actuator, the electric water pump 42, the electric actuators 62 and 64, the compressor 31, and the PTC heater 15.

  Then, the blower 12 sucks air into the inside / outside air switching box 20 from at least one of the inside / outside air switching box 20 and the outside air introduction port 22, and the sucked air is on the side of the blowing openings 24 to 26 (that is, the vehicle interior side). ). The blown air is cooled by the evaporator 13. At this time, the air conditioning control device 50 controls the number of refrigerant flowing in the evaporator 13 by controlling the rotational speed of the compressor 31. Thereby, the temperature of the air blown out from the evaporator 13 is controlled, and the air temperature blown out from the evaporator 13 (that is, the detected temperature of the evaporator temperature sensor) approaches the target evaporator temperature TEO.

  Along with this, cold air is blown out from the evaporator 13. A part of the cold air blown out from the evaporator 13 passes through the cold air bypass passage 17. The remaining cool air blown out from the evaporator 13 flows into the heating cool air passage 16. The cold air passing through the heating cold air passage 16 is heated by the heater core 14 and the PTC heater 15. Thereby, the warm air is blown out from the cold air passage 16 for heating.

  At this time, the ratio of the cool air passing through the cool air bypass passage 17 and the warm air blown out from the heating cool air passage 16 is controlled by the target position of the air mix door 19 (ie, the mixing ratio SW).

  As described above, the hot air blown out from the heating cold air passage 16 and the cold air blown out from the cold air bypass passage 17 are mixed in the mixing space 18 to be conditioned air, and the blowout openings opened in the blowout openings 24, 25, and 26. It is blown out from the section into the passenger compartment.

  Here, the rotational position of the air mix door 19 is set to realize the mixing ratio SW (%) calculated in step 4. For this reason, the air mix door 19 controls the temperature of the air blown into the vehicle compartment from the blowout openings 24, 25, and 26, depending on the rotational position thereof. Thereby, the temperature of the air blown into the vehicle compartment from the blowout openings 24, 25, and 26 can be brought close to the target blowout temperature TAO. As described above, the passenger compartment can be air-conditioned by the air blown from the blowout openings 24, 25, and 26.

  Hereinafter, the characteristic matter of the control processing of the air conditioning control device 50 will be described.

  First, step 4 (TAO calculation processing) will be described.

  For each step 4, the set temperature Tset is repeatedly calculated. Therefore, the set temperature Tset calculated in the previous step 4 is set as a temporary set temperature in the current step 4. As will be described later, the calculated set temperature Tset is displayed on the display panel 60c every time the set temperature Tset is calculated. For this reason, the set temperature Tset displayed on the display panel 60c before the sound input of the current set temperature Tset is the temporary set temperature in step 4 of this time. Immediately after the start of the air conditioning control process, the set temperature Tset input by the user's manual operation to the vehicle interior temperature setting switch is set as the initial value of the temporary set temperature Tset.

  For example, it is determined that the user has not manually operated to set the set temperature Tset to the vehicle interior temperature setting switch, and the correction value (+1, −1) of the set temperature Tset is input by voice through the microphone 71 from the user. If it is determined YES in step 405, the voice correction set temperature (n) is corrected with the correction value, and the corrected voice correction set temperature (n) and the provisional set temperature are added to each other. The set temperature Tset (n) is obtained. This set temperature Tset (n) is set as a set temperature Tset used for calculation of the target blowing temperature TAO (steps 410 and 411).

  Further, if YES is determined in step 405 every time step 4 is executed, the sound correction set temperature (n) is updated in either one of steps 408 and 409 for each YES determination, and the updated sound correction set temperature is updated. A set temperature Tset (n) obtained by adding (n) and the provisional set temperature is obtained. This set temperature Tset (n) is set as a set temperature Tset used for calculation of the target blowing temperature TAO (step 410).

  Thereafter, when the correction value of the set temperature Tset input by the user's voice is received, when the detected value of the inside air sensor 51 changes by a predetermined temperature or more, it is determined as YES in Step 403 because the air conditioning environment in the passenger compartment has changed. To do. Accordingly, the provisional set temperature Tset is set as the set temperature Tset used for calculating the target blowout temperature TAO (step 406).

  Further, when it is determined that the user has manually operated to set the set temperature Tset to the vehicle interior temperature setting switch, the set temperature Tset (that is, the provisional set temperature) set by the vehicle interior temperature setting switch is set to the target blowout. A set temperature Tset used for calculating the temperature TAO is set (steps 406 and 411).

  Thus, the set temperature Tset is calculated on one of steps 406 and 410. A target blowing temperature TAO is calculated based on the calculated set temperature Tset. The air mix door 19 is controlled based on the calculated target blowing temperature TAO. Along with this, the temperature of the air blown from the blowout openings 24 to 26 is controlled.

  Further, as described above, the set temperature Tset is calculated in one of steps 406 and 410. The set temperature Tset is updated every time Step 4 is executed. Each time this update is performed, display information indicating the set temperature Tset to be updated is output to the display panel 60c. Accordingly, the set temperature Tset calculated in one of steps 406 and 410 is displayed on the display panel 60c. For this reason, every time one of steps 406 and 410 is calculated, the set temperature Tset displayed on the display panel 60c is updated.

  Next, when the manual mode of the blower 12 is set, the blower voltage input by the user's manual operation to the vehicle interior temperature setting switch is received as a temporary blower voltage (steps 3 and 501).

  For example, it is determined that the user has not manually operated to set the blower voltage to the blower air volume setting switch, and the correction value (+ 2V, −2V) of the blower voltage is input from the user through the microphone 71 by voice. If YES in 506, the voice correction voltage (n) is corrected by the correction value, and a blower voltage obtained by adding the corrected voice correction voltage (n) and the temporary blower voltage is obtained. . This blower voltage is used for controlling the blower 12.

  Further, if YES is determined in step 506 every time step 5 is executed, the sound correction voltage (n) is updated in any one of steps 509 and 510, and the updated sound correction voltage (n ) And the temporary blower voltage. This blower voltage is used for controlling the blower 12.

  After that, when the correction value of the blower voltage input by the user's voice is received, when the detected value of the inside air sensor 51 changes by a predetermined temperature or more, it is determined as YES in Step 504 because the air conditioning environment in the passenger compartment has changed. . Accordingly, the blower voltage (that is, the temporary blower voltage) set by the blower air volume setting switch is used as the blower voltage used for controlling the blower 12.

  In addition, when it is determined that the user has manually operated the blower air volume setting switch to set the blower voltage, the blower voltage set by the blower air volume setting switch (that is, the temporary blower voltage) is used to control the blower 12. Use blower voltage.

  Further, when the auto mode of the blower 12 is set, f (TAO), which is a base value of the target air flow rate of the blower 12, is determined according to the target blowing temperature TAO (step 520).

  For example, it is determined that the user has not manually operated to set the blower voltage to the blower air volume setting switch, and the correction value (+5 level, −5 level) of the air flow rate is input from the user through the microphone 71 by voice. If it is determined as YES in step 525, the audio correction level (n) is corrected by the correction value, and the corrected audio correction level (n) and f (TAO) are added to the temporary blower. Ask for a level. This temporary blower level is used for controlling the blower 12.

  Further, if YES is determined in step 525 every time step 5 is executed, the sound correction level (n) is updated in any one of steps 528 and 529, and the updated sound correction level (n ) And f (TAO) are added to obtain a temporary blower level. This temporary blower level is used for controlling the blower 12.

  After that, when the correction value of the blower level input by the user's voice is received, when the detected value of the inside air sensor 51 changes by a predetermined temperature or more, it is determined as YES in Step 523 because the air conditioning environment in the vehicle interior has changed. . Accordingly, f (TAO) is set to a temporary blower level used for controlling the blower 12.

  Further, when it is determined that the user has manually operated the blower air volume setting switch to set the blower level, f (TAO) is set as a temporary blower level used for controlling the blower 12.

  Next, when the manual mode of the inside / outside air switching door 23 is set, the suction port mode input by the user's manual operation to the suction port mode switch is accepted as a temporary suction port mode (steps 3, 601).

  For example, if it is determined that the user has not manually operated to set the suction port mode to the suction port mode switch, and the instruction of the suction port mode is input from the user through the microphone 71, YES is determined in step 606. In this case, the inside / outside air switching door 23 is controlled so as to realize the suction port mode inputted by voice from the user.

  Thereafter, when the detected value of the inside air sensor 51 has changed by a predetermined temperature or more after the suction port mode input by the user's voice is received, it is determined as YES in Step 504 because the air conditioning environment in the passenger compartment has changed. Along with this, the inside / outside air switching door 23 is controlled so as to realize the suction port mode (that is, the temporary suction port mode) set by the suction port mode switch.

  In addition, when it is determined that the user manually operates to set the suction port mode to the suction port mode, the suction port mode set by the suction port mode switch (that is, the temporary suction port mode) is realized. The inside / outside air switching door 23 is controlled.

  Furthermore, when the auto mode of the inside / outside air switching door 23 is set, a temporary suction port mode is determined according to the target outlet temperature TAO (step 610).

  For example, if it is determined that the user has not manually operated to set the suction port mode to the suction port mode switch, and the instruction of the suction port mode is input from the user through the microphone 71, YES is determined in step 615. In this case, the inside / outside air switching door 23 is controlled so as to realize a suction port mode in which a voice is input from the user.

  Thereafter, when the detected value of the inside air sensor 51 changes by a predetermined temperature or more after the suction port mode input by the user's voice is received, it is determined as YES in Step 613 that the air conditioning environment in the passenger compartment has changed. Along with this, the inside / outside air switching door 23 is controlled so as to realize the temporary suction port mode.

  In addition, when it is determined that the user has manually operated the suction port mode switch to set the suction port mode, the inside / outside air switching door 23 is controlled so as to realize the temporary suction port mode.

  Next, when the manual mode of the mode doors 24a, 25a, and 26a is set, the air outlet mode input by the user's manual operation to the air outlet mode switch is accepted as a temporary air outlet mode (steps 3, 701). ). For example, it is determined that the user has not manually operated to set the air outlet mode to the air outlet mode switch, and YES is determined in step 706 on the assumption that an instruction of the air outlet mode is input from the user through the microphone 71. In such a case, the mode doors 24a, 25a, and 26a are controlled so as to realize the air outlet mode that is input by voice from the user.

  Thereafter, when the detected value of the inside air sensor 51 has changed by a predetermined temperature or more after receiving the air outlet mode input by the user's voice, it is determined as YES in Step 704 that the air conditioning environment in the vehicle interior has changed. Accordingly, the mode doors 24a, 25a, and 26a are controlled so as to realize the air outlet mode set by the air outlet mode switch (that is, the temporary air outlet mode).

  Further, when it is determined that the user has manually operated to set the air outlet mode to the air outlet mode, the air outlet mode set by the air outlet mode switch (that is, the temporary air outlet mode) is realized. The mode doors 24a, 25a, and 26a are controlled.

  Further, when the auto mode of the mode doors 24a, 25a, and 26a is set, a provisional outlet mode is determined according to the target outlet temperature TAO (step 720).

  For example, it is determined that the user has not manually operated to set the air outlet mode to the air outlet mode switch, and YES is determined in step 725 if an instruction of the air outlet mode is input from the user through the microphone 71 by voice. In such a case, the mode doors 24a, 25a, and 26a are controlled so as to realize the air outlet mode in which a voice is input from the user.

  Thereafter, when the detected value of the inside air sensor 51 has changed by a predetermined temperature or more from the time when the air outlet mode input by the user's voice is received, YES is determined in step 723 as the air conditioning environment in the passenger compartment has changed. Along with this, the mode doors 24a, 25a, and 26a are controlled so as to realize the provisional outlet mode.

  Further, when it is determined that the user has manually operated the outlet mode switch to set the outlet mode, the mode doors 24a, 25a, and 26a are controlled so as to realize the temporary outlet mode.

  According to the above, when the user inputs a set value (set temperature Tset, air volume (blower voltage), suction port mode, outlet mode) by voice, the air conditioning control device 50 is set by the voice of the user. The indoor air conditioning unit 10 is controlled using the value. For this reason, the indoor air-conditioning unit 10 can be controlled using the setting value which shows a user's intuitive request. Therefore, it is possible to carry out air conditioning in the vehicle interior that satisfies the intuitive request of the user. That is, it is possible to carry out air conditioning in the vehicle interior that satisfies the user's impulsive needs.

  In the present embodiment, the vehicle interior temperature Tr is set to a predetermined temperature (for example, 2 ° C.) after the user inputs a set value (set temperature Tset, air flow rate (blower voltage), air inlet mode, air outlet mode) by voice. When it is determined that the condition that the air conditioning environment in the vehicle interior has changed and the estimated condition has changed is satisfied, the use of the set value input by voice when the indoor air conditioning unit 10 is controlled is canceled, and the operation unit 60 is released. The indoor air conditioning unit 10 is controlled using the set value set in.

  Therefore, when the air conditioning environment in the passenger compartment or the user's own feeling of temperature changes, the indoor air conditioning unit 10 can be controlled using the set value set in the operation unit 60. Therefore, it is possible to eliminate the troublesomeness of the user operating the operation unit 60 again, and to shorten the implementation time of the user's intuitive request that the fuel consumption / electricity cost is deteriorated. Electricity consumption is the travel distance per unit capacity of power energy sources (various power sources, batteries, etc.) in automobiles. The fuel consumption is a travel distance per unit capacity of fuel (gasoline, light oil, etc.) in an automobile.

(Second Embodiment)
In the second embodiment, in the first embodiment, when a predetermined time elapses after receiving an input of an air flow rate instruction by voice input, the temporary blower voltage and the voice correction voltage are added to the temporary blower voltage. An example in which the blower voltage used for controlling the blower 12 is gradually changed so as to gradually return to the blower voltage will be described.

  15 and 16 show the blower voltage determination process of the present embodiment. FIG. 15 is employed instead of FIG. FIG. 16 is employed in place of FIG.

  FIG. 15 includes Step 511A in which Steps 540 and 541 are added in FIG. 15, the same reference numerals as those in FIG. 5 indicate the same steps, and the description thereof is omitted.

  Steps 540 and 541 are arranged between step 504 and step 508. In step 540, a coefficient f (T) used in the calculation in step 511A described later is obtained.

  The coefficient f (T) = 1 is set until the first time (for example, 3 minutes) has elapsed since the instruction of the air flow rate was received by voice input. When the time T that has elapsed since the instruction of the air flow rate is received by voice input is equal to or greater than the first time and less than the second time, the coefficient f (T) increases from 1 to 0 (zero) as time T elapses. ) Will gradually become smaller. When the time T that has elapsed since the instruction of the air flow rate was received by voice input becomes equal to or longer than the second time, the coefficient f (T) becomes 0 (zero).

  The first time is a time estimated to be required for the air-conditioning environment in the passenger compartment to change after receiving an instruction for the air flow rate by voice input.

  In this way, the coefficient f (T) is determined by the time T that has elapsed since the instruction of the air flow rate was received by voice input.

  In step 511A, the blower voltage is obtained by the following equation F5.

Blower voltage = temporary blower voltage + voice correction voltage (n) × coefficient f (T)... F5
For this reason, since the coefficient f (T) = 1 until the first time (for example, 3 minutes) has passed since the instruction of the air flow rate was received by voice input, the blower voltage is set to be the same as in the first embodiment. It can be calculated as (temporary blower voltage + voice correction voltage (n)).

  When the time T that has elapsed since the instruction of the air flow rate was received by voice input is equal to or greater than the first time and less than the second time, the coefficient f gradually increases from 1 to 0 as the time T elapses. Get smaller. For this reason, the blower voltage gradually decreases from (temporary blower voltage + sound correction voltage (n)) toward (temporary blower voltage) as time elapses. That is, as time T elapses, the blower voltage used for controlling the blower 12 is gradually changed so that the temporary blower voltage as the blower voltage used for controlling the blower 12 is gradually restored.

  After that, when the time T that has elapsed since the instruction of the air flow rate is received by voice input becomes equal to or longer than the second time, the coefficient f (T) = 0, so that the temporary blower voltage used for controlling the blower 12 is To do.

  FIG. 16 includes step 530A in which steps 550 and 551 are added in FIG. In FIG. 16, the same reference numerals as those in FIG. 6 denote the same steps, and the description thereof is omitted.

  Steps 550 and 551 are arranged between step 521 and step 525. In step 550, a coefficient f (T) used in the calculation in step 530A described later is obtained.

  The coefficient f (T) = 1 is set until the first time (for example, 3 minutes) elapses after the correction voltage is received by voice input. When the time T that has elapsed since the instruction of the air flow rate is received by voice input is equal to or greater than the first time and less than the second time, the coefficient f (T) increases from 1 to 0 (zero) as time T elapses. ) Will gradually become smaller. When the time T that has elapsed since the instruction of the air flow rate was received by voice input becomes equal to or longer than the second time, the coefficient f (T) becomes 0 (zero).

  The first time is a time estimated to be required for the air-conditioning environment in the passenger compartment to change after receiving an instruction for the air flow rate by voice input.

  In this way, the coefficient f (T) is determined by the time T that has elapsed since the instruction of the air flow rate was received by voice input.

  In step 530A, the blower voltage is obtained by the following equation F6.

Temporary blower level = f (TAO) + sound correction level (n) × coefficient f (T)... F6
For this reason, since the coefficient f (T) = 1 until the first time (for example, 3 minutes) has passed since the instruction of the air flow rate was received by voice input, the blower voltage is set to be the same as in the first embodiment. (F (TAO) + sound correction level (n)).

  Further, when the time T that has elapsed since the instruction of the air flow rate is received by voice input is equal to or longer than the first time and less than the second time, the coefficient f (T) is 1 to 0 as time elapses. Gradually getting smaller toward Accordingly, the temporary blower level gradually decreases from (f (TAO) + audio correction level (n)) to (f (TAO)) as time elapses. That is, as the temporary blower level used when controlling the blower 12 with the passage of time, the temporary blower level (target blower amount) used for controlling the blower 12 so as to gradually return f (TAO). It will change gradually.

  After that, when the time T that has passed since the instruction of the air flow amount by voice input becomes equal to or longer than the second time, the coefficient f (T) = 0 and f (TAO) is used as a temporary blower level for controlling the blower 12. To do.

  As described above, the blower voltage is obtained in steps 531, 532, 533, 534, 535, and 536 in FIG. 7 based on the temporary blower level obtained in step 530 A as in the first embodiment.

  According to the present embodiment described above, a blower used for controlling the blower 12 after a time estimated to be required to change the air conditioning environment in the vehicle interior has elapsed after receiving an instruction for the blowing amount by voice input. As the voltage (temporary blower level), the blower voltage (temporary blower level) used for controlling the blower 12 can be gradually changed so that the temporary blower voltage (f (TAO)) is gradually restored. Thereby, it can suppress giving a user discomfort by the change of the ventilation volume of the air blower 12. FIG.

(Third embodiment)
In the third embodiment, in the first and second embodiments described above, when a predetermined time has elapsed since the input of an instruction for the set temperature Tset by voice input, the set temperature Tset (= temporary set temperature + voice) An example of changing the set temperature Tset used for calculating the target blowout temperature TAO so as to gradually return from the corrected set temperature (n) to the provisional set temperature will be described.

  FIG. 17 shows the TAO calculation process of this embodiment. FIG. 17 corresponds to FIG.

  FIG. 17 includes steps 411A that add steps 420 and 421 in FIG. 4 and replace step 411. In FIG. 17, the same reference numerals as those in FIG. 4 denote the same steps, and the description thereof is omitted.

  Steps 420 and 421 are arranged between step 403 and step 407. In step 411, a coefficient f (T) used in the calculation in step 411A described later is obtained.

  The coefficient f (T) = 1 is set until the first time (for example, 3 minutes) elapses after the instruction of the set temperature Tset is received by voice input. When the time T elapsed after receiving the instruction of the set temperature Tset by voice input is equal to or longer than the first time and less than the second time, the coefficient f (T) is changed from 1 to 0 ( It will gradually become smaller by zero). In addition, when the time T that has passed since the instruction of the set temperature Tset was received by voice input becomes equal to or longer than the second time, the coefficient f (T) becomes 0 (zero).

  The first time is a time estimated to be required for the air conditioning environment in the passenger compartment to change after receiving an instruction for the set temperature Tset by voice input.

  Thus, the coefficient f (T) is determined by the time T that has elapsed since the instruction of the set temperature Tset was received by voice input.

In step 411A, the set temperature Tset is obtained by the following formula F7. Set temperature Tset = temporary set temperature + voice correction set temperature (n) × coefficient f (T)... F7
For this reason, since the coefficient f (T) = 1 until the first time (for example, 3 minutes) elapses after the instruction of the set temperature Tset is received by voice input, the set temperature is the same as in the first embodiment. Tset can be obtained as (temporary set temperature + sound correction set temperature (n)).

  In addition, when the time T that has elapsed since the instruction of the set temperature Tset was received by voice input is equal to or longer than the first time and less than the second time, the set temperature Tset increases with the passage of time. The temperature decreases from (temperature + sound correction set temperature (n)) toward (temporary set temperature).

  That is, with the passage of time T, the set temperature Tset used for calculating the target blowing temperature TAO is changed so as to gradually return the temporary set temperature as the set temperature Tset used for calculating the target blowing temperature TAO. Can do.

  Further, when the time T that has elapsed since the instruction of the set temperature Tset was received by voice input becomes equal to or longer than the second time, the set temperature Tset used for calculating the target blowing temperature TAO is set as a temporary set temperature.

  According to the present embodiment described above, when an estimated time required for the air conditioning environment in the vehicle interior to change has elapsed after receiving an instruction for the set temperature Tset by voice input, the target blowout temperature TAO is used for calculation. As the set temperature Tset, the set temperature Tset used for calculating the target blowing temperature TAO is gradually changed so as to gradually return the temporary set temperature. Thereby, it can suppress giving a user discomfort by the change of the air temperature which blows off from the blowing opening parts 24-26.

(Other embodiments)
(1) In the above-described first, second, and third embodiments, the indoor air conditioning unit 10 includes the PTC heater 15, but the PTC heater 15 may be omitted.

  (2) In the first, second, and third embodiments described above, the vehicle on which the vehicle air conditioner 1 is mounted is a hybrid vehicle, but it may be a simple engine vehicle that does not include a traveling electric motor. There is no problem. If the vehicle on which the vehicle air conditioner 1 is mounted is an engine vehicle, the compressor 31 does not have to be electrically driven and may be driven by the engine EG.

  (4) In the first, second, and third embodiments described above, the processing of each step shown in the flowcharts of FIGS. 3 to 17 is realized by a computer program, but is configured by hard logic. It doesn't matter.

  (5) In the first, second, and third embodiments described above, in the vehicle air conditioner 1 of the present invention, an example in which the indoor air conditioning unit 10 including the evaporator 13, the heater core 14, and the PTC heater 15 is used. Although demonstrated, it may replace with this and you may use the indoor air conditioning unit 10 only for cooling provided with the evaporator 13 among the evaporator 13, the heater core 14, and the PTC heater 15. FIG.

  (5) In the first, second, and third embodiments described above, an example in which it is determined in step 521 whether or not the air flow rate of the blower 12 has been set by the user's manual operation on the blower air flow rate setting switch. However, instead of this, it may be determined in step 521 whether or not the set temperature Tset has been set by a user's manual operation to the vehicle interior temperature setting switch. In this case, when the set temperature Tset is set by the user's manual operation to the vehicle interior temperature setting switch, it is determined as YES. When the set temperature Tset is not set by the user's manual operation to the vehicle interior temperature setting switch, it is determined as NO.

  (6) In the above-described first embodiment, the example in which it is determined in step 611 whether or not the suction port mode is set by the user's manual operation on the suction port mode switch has been described. In step 611, it may be determined whether or not the set temperature Tset has been set by a user's manual operation on the vehicle interior temperature setting switch. In this case, when the set temperature Tset is set by the user's manual operation to the vehicle interior temperature setting switch, it is determined as YES. When the set temperature Tset is not set by the user's manual operation to the vehicle interior temperature setting switch, it is determined as NO.

  (7) In the above-described first embodiment, the example in which it is determined in step 721 whether or not the air outlet mode has been set by the user's manual operation to the air outlet mode switch has been described. In step 711, it may be determined whether or not the set temperature Tset has been set by a user's manual operation on the vehicle interior temperature setting switch. In this case, when the set temperature Tset is set by the user's manual operation to the vehicle interior temperature setting switch, it is determined as YES. When the set temperature Tset is not set by the user's manual operation to the vehicle interior temperature setting switch, it is determined as NO.

  (8) In the first embodiment described above, in step 504 (523), it is determined whether or not the inside air temperature has changed by 2 ° C. or more after the blower voltage (air flow rate) instruction is input by the user's voice. Thus, the example in which it is determined whether or not the condition that the air-conditioning environment in the passenger compartment has been estimated is satisfied has been described. However, instead of this, the following may be performed.

  That is, by determining whether or not a predetermined period (for example, 3 minutes) has elapsed since the instruction of the blower voltage (the amount of air blown by the blower 12) is input by the user's voice, the blower voltage (the blower is blown by the user's voice). It may be determined whether or not a condition estimated that the air-conditioning environment in the passenger compartment has changed has been satisfied after the instruction of (12 air flow) is input.

  Similarly, in the first embodiment described above, in step 604 (613), it is determined whether or not a predetermined period (for example, 3 minutes) has elapsed since the instruction of the suction port mode was input by the user's voice. Thus, it may be determined whether or not a condition estimated that the air-conditioning environment in the passenger compartment has changed has been satisfied after the instruction of the blower voltage (the amount of air blown from the blower 12) is input by the user's voice.

  Similarly, in the first embodiment described above, in step 704 (723), it is determined whether or not a predetermined period (for example, 3 minutes) has elapsed since the instruction of the air outlet mode was input by the user's voice. Thus, it may be determined whether or not a condition estimated that the air-conditioning environment in the vehicle interior has changed is satisfied after an instruction for the air outlet mode is input by the user's voice.

  Similarly, in the above-described first embodiment, in step 403, the user is determined by determining whether or not a predetermined period (for example, 3 minutes) has elapsed since the instruction of the set temperature was input by the user's voice. It may be determined whether or not a condition estimated that the air-conditioning environment in the passenger compartment has changed has been satisfied after the instruction of the set temperature is input by voice.

  (9) In the first, second, and third embodiments, the example in which the operation panel 60 including various air conditioning operation switches is used as the operation unit of the present invention has been described. However, instead of this, the display panel includes the operation panel 60. The touch panel may be the operation unit of the present invention, and both the touch panel provided on the display and the operation panel 60 may be the operation unit of the present invention.

  (10) In the first, second, and third embodiments, in step 8 of FIG. 3, Δf_c based on the fuzzy rule table so that the deviation between the target evaporator temperature TEO and the evaporator temperature Te approaches zero. Has been described, and the compressor rotation speed is calculated using the determined Δf_c. However, the present invention is not limited to this, and the following may be employed.

  That is, in step 8 of FIG. 3, if the compressor rotational speed is determined so that the deviation between the target evaporator temperature TEO and the evaporator temperature Te is close to zero, the compressor rotational speed can be set by any method. You may decide.

  In addition, this invention is not limited to above-described embodiment, In the range described in the claim, it can change suitably. Further, the first and second embodiments are not irrelevant to each other, and can be appropriately combined unless the combination is clearly impossible.

  Next, the correspondence between the claims of the present invention and the components of the first and second embodiments will be described.

  That is, step 13 corresponds to the control means, operation accepting means corresponds to step 3, and steps 506, S606, and S706 correspond to the voice input determination means. Steps 502, S602, and S702 correspond to the operation determination unit, and steps 504, S604, S704, and S541 correspond to the environment change determination unit. Step 411 corresponds to the calculation means, step 500 corresponds to the first auto mode determination means, and step 520 corresponds to the target air volume calculation means. Step 700 corresponds to the second auto mode determination means, step 720 corresponds to the outlet mode calculation means, and step 600 corresponds to the third auto mode determination means. Step 610 corresponds to a suction port mode calculating means. The evaporator 13, the heater core 14, the PTC heater 15, and the air mix door 19 constitute a temperature adjustment mechanism.

DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner 10 Indoor air conditioning unit 50 Air conditioning control device 60 Operation panel

Claims (14)

Control means (S13) for controlling the air conditioning unit using a set value for determining the control state of the air conditioning unit (10) for air conditioning the vehicle interior;
Operation accepting means (S3) for accepting the set value input by an operation on the operation unit (60) by the user;
Voice input determination means (S506, S606, S706) for determining whether or not the set value is input by the voice of the user;
Operation determining means (S502, S602, S702) for determining whether or not the user has operated to set the set value on the operation unit;
When the operation determining unit determines that the user has operated to set the set value on the operation unit, the control unit uses the set value to be used when controlling the air conditioning unit. And the set value set to
When the voice input determining means determines that the set value has been input, the control means uses the set value used when controlling the air conditioning unit as the set value input by the user's voice,
Environment change determination means (S504, S604, S704, S541) for determining whether or not a condition estimated that the air-conditioning environment in the passenger compartment has changed is satisfied,
When the sound input determination means determines that the set value has been input, the control means determines that the environment change determination means determines that a condition presumed that the air conditioning environment in the vehicle interior has changed is satisfied. Uses the set value input by the voice of the user when controlling the air conditioning unit.   When the environment change determination unit determines that the condition estimated that the air-conditioning environment in the passenger compartment has changed is satisfied, the control unit sets the set value used when controlling the air-conditioning unit to the operation unit. 2. The vehicle air conditioner according to claim 1, wherein the set value used when controlling the air conditioning unit is gradually changed so that the input set value is gradually restored.   The environment change determination means (S541) determines whether or not a time estimated to have changed the air conditioning environment in the vehicle has elapsed since the setting value input by the user's voice was received. The vehicle air conditioner according to claim 1, wherein it is determined whether or not a condition that the air conditioning environment in the vehicle interior is estimated to have changed is satisfied.   The environmental change determination means (S504, S604, S704) receives a predetermined value input from the user's voice, and the detected value of the internal air sensor (51) for detecting the air temperature in the vehicle interior is predetermined. 2. The vehicle air conditioner according to claim 1, wherein it is determined whether or not a condition presumed that the air-conditioning environment in the vehicle interior has changed is satisfied by determining whether or not the temperature has changed more than a temperature. . The air conditioning unit includes a blower (12) that generates air flowing toward the vehicle interior, and air-conditions the vehicle interior by air blown into the vehicle interior by the blower.
The set value is input to the operation unit as a target air flow rate of the blower,
When the operation determining unit determines that the user has operated the operation unit to set the target air flow rate, the control unit is configured to bring the air flow rate of the air blower closer to the target air flow rate. Control
When the voice input determination unit determines that the correction value for the target air flow rate has been input as the set value, the control unit inputs the target air flow rate input to the operation unit by the user's voice. Correcting based on the correction value, controlling the blower to bring the blower amount of the blower closer to the corrected target blown amount,
When the sound input determination means determines that the correction value has been input, the control means when the environment change determination means determines that a condition presumed that the air conditioning environment in the vehicle interior has changed is satisfied. When controlling the air blower, the use of the corrected target air flow rate is canceled, and the air blower is controlled using the target air flow rate input to the operation unit. Item 5. The vehicle air conditioner according to any one of Items 1 to 4. A set temperature (Test), which is a target temperature of the air temperature in the passenger compartment, is input to the operation unit as the set value by an operation on the operation unit by the user.
A calculation means (S411) for obtaining a target air temperature (TAO) as a blown air temperature of the air conditioning unit necessary for maintaining the air temperature in the vehicle interior at the set temperature;
First auto mode determination means (S500) for determining whether or not an auto mode for automatically controlling the blower is set;
A target air volume calculating means (S520) for calculating a target air volume (f (TAO)) of the blower based on the target air temperature;
When the first auto mode determination means determines that the Aude mode is set, and the operation determination means determines that the user has operated to set the target air flow rate to the operation unit, Controlling the blower to bring the blower amount of the blower closer to the target blower amount calculated by the target blower amount calculating means;
The control means when the first auto mode determination means determines that the auto mode is set and the voice input determination means determines that the correction value of the target air flow rate is input as the set value Corrects the target air flow calculated by the target air flow calculating means with the correction value, and controls the air blower so as to bring the air flow of the air blower closer to the corrected target air flow,
When the auto mode is set, the first auto mode determination means determines that the voice input determination means determines that the correction value has been input, and it is estimated that the air conditioning environment in the vehicle interior has changed. When the environmental change determination unit determines that the condition is satisfied, the control unit cancels the use of the corrected target air flow rate when controlling the blower, and the target air flow rate The vehicle air conditioner according to claim 5, wherein the blower is controlled using a target air volume calculated by a calculation unit.   When the auto mode is set, the first auto mode determination means determines that the voice input determination means determines that the correction value has been input, and it is estimated that the air conditioning environment in the vehicle interior has changed. When the environmental change determination unit determines that the condition is satisfied, the control unit controls the air conditioning unit to control the blower as the target blown amount used as the target blown amount. The vehicle air conditioner according to claim 6, wherein the target air volume used when controlling the blower is gradually changed so that the target air volume calculated by the calculating unit is gradually returned. The air conditioning unit includes a plurality of blowing openings (24, 25, 26) for blowing air into the vehicle interior, and mode doors (24a, 25a, 26a) for opening and closing the plurality of blowing openings for each of the blowing openings. )
The operation unit is configured to input a blowout port mode indicating which blowout opening portion of the plurality of blowout opening portions should be opened by the mode door as the set value.
When the operation determining unit determines that the user has operated the operation unit to set the outlet mode, the control unit is configured to enable the outlet port to realize the set outlet mode. Control the mode door every time,
The voice input determination means determines whether or not the outlet mode as the set value has been received,
When it is determined that the voice input determination unit has received the outlet mode, the control unit is provided for each outlet opening so as to realize the outlet mode that is determined to be received by the voice input determination unit. Control the mode door,
When the sound input determination means determines that the air outlet mode has been input, the control is performed when the environment change determination means determines that a condition presumed that the air conditioning environment in the vehicle interior has changed is satisfied. The means controls the mode door for each of the outlet openings so as to realize the outlet mode input to the operation portion instead of the outlet mode determined to be received by the voice input determination means. The vehicle air conditioner according to any one of claims 1 to 7. In the operation unit, the outlet mode is input as the set value by an operation on the operation unit of the user,
A calculation means (S411) for obtaining a target air temperature (TAO) as a blown air temperature of the air conditioning unit necessary for maintaining the air temperature in the vehicle interior at the set temperature;
Second auto mode determination means (S700) for determining whether or not an auto mode for automatically controlling the mode door for each outlet opening is set;
Outlet mode calculating means (S720) for calculating the outlet mode based on the target air temperature;
When the second auto mode determination means determines that the Aether mode is set, and the operation determination means determines that the user has operated to set the outlet mode to the operation unit, Controlling the mode door for each outlet opening so as to realize the outlet mode calculated by the outlet mode calculating means;
When the second auto mode determination means determines that the Aether mode is set, and the voice input determination means determines that the air outlet mode is input as the set value, the control means Controlling the mode door to realize the input outlet mode,
When the auto mode is set, the second auto mode determination means determines that the voice input determination means determines that the air outlet mode has been input. When the environmental change determination means determines that the condition to be satisfied is satisfied, the control means replaces the outlet mode determined to be input by the voice input determination means with the outlet mode calculation means. The vehicle air conditioner according to claim 8, wherein the mode door for each of the outlet openings is controlled so as to realize the calculated outlet mode. The air conditioning unit includes an inside air introduction port (21) for introducing inside air, an outside air introduction port (22) for introducing outside air, and an inside / outside air switching door (23) for opening and closing the inside air introduction port and the outside air introduction port, The air sucked from at least one of the inside air introduction port and the outside air introduction port is blown into the vehicle interior to air-condition the vehicle interior,
The operation unit is configured to input, as the set value, a suction port mode that determines an outside air introduction rate occupied by outside air out of an amount of air introduced from the inside air introduction port and the outside air introduction port to the air conditioning unit,
When the operation determining means determines that the user has operated to set the suction port mode to the operation unit, the control means switches the inside / outside air switching to realize the set suction port mode. Control the door,
The voice input determination means determines whether the suction port mode as the set value has been received,
When it is determined that the voice input determination unit has received the suction port mode, the control unit sets the inside / outside air switching door to realize the suction port mode that is determined to be received by the voice input determination unit. Control
When the sound input determination means determines that the suction port mode has been input, the control is performed when the environment change determination means determines that a condition presumed that the air conditioning environment in the vehicle interior has changed is satisfied. The means controls the inside / outside air switching door so as to realize the suction port input to the operation unit instead of the suction port mode determined to be received by the voice input determination unit. Item 10. The vehicle air conditioner according to any one of Items 1 to 9. In the operation unit, the suction port mode is input as the set value by an operation to the operation unit of the user.
A calculation means (S411) for obtaining a target air temperature (TAO) as a blown air temperature of the air conditioning unit necessary for maintaining the air temperature in the vehicle interior at the set temperature;
Third auto mode determination means (S600) for determining whether or not an auto mode for automatically controlling the inside / outside air switching door is set;
Inlet mode calculation means (S610) for calculating the inlet mode based on the target air temperature;
When the third auto mode determination means determines that the Aode mode is set, and the operation determination means determines that the user has operated to set the suction port mode to the operation unit, Controlling the mode door to realize the inlet mode calculated by the inlet mode calculating means,
When the auto mode is set, the third auto mode determination means determines, and when the voice input determination means determines that the suction port mode is input as the set value, the control means, Control the mode door to realize the input inlet mode,
When the auto mode is set, the third auto mode determination means determines that the voice input determination means determines that the air inlet environment has been input. When the environmental change determination means determines that the condition to be satisfied is satisfied, the control means replaces the intake port mode determined to be input by the voice input determination means with the intake port mode calculation means. The vehicle air conditioner according to claim 10, wherein the inside / outside air switching door is controlled so as to realize the calculated suction port mode. The air conditioning unit includes a temperature adjustment mechanism (13, 14, 15, 19) for adjusting the temperature of air blown into the vehicle interior,
A set temperature (Test), which is a target temperature of the air temperature in the passenger compartment, is input to the operation unit as the set value by an operation on the operation unit by the user.
When the operation determination means determines that the user has operated the operation unit to set the set temperature, the control means is configured to bring the air temperature in the vehicle compartment closer to the input set temperature. Controlling the temperature adjustment mechanism;
The voice input determination means determines whether a correction value of the set temperature is accepted as the set value,
When the voice input determination unit determines that the correction value is received, the control unit corrects the set temperature input to the operation unit with the correction value, and sets the corrected set temperature to the set temperature after correction. Control the temperature adjustment mechanism to bring the air temperature in the passenger compartment closer,
When the sound input determination means determines that the correction value has been input, the control means when the environment change determination means determines that a condition presumed that the air conditioning environment in the vehicle interior has changed is satisfied. The vehicle air conditioner according to any one of claims 1 to 11, wherein when the temperature adjustment mechanism is controlled, the use of the corrected set temperature is canceled.   When the sound input determination means determines that the set value has been input, the control means determines that the environment change determination means determines that a condition presumed that the air conditioning environment in the vehicle interior has changed is satisfied. Gradually sets the set temperature used when controlling the temperature adjustment mechanism so that the set temperature input to the operation unit is gradually returned as the set temperature used when controlling the temperature adjustment mechanism. The vehicle air conditioner according to claim 12, wherein the vehicle air conditioner is changed. An air conditioning unit (10) for air conditioning the vehicle interior;
Control means (S13) for controlling the air conditioning unit using a set value for determining the control state of the air conditioning unit;
An operation unit (60) in which the set value is input by a user operation;
Operation accepting means (S3) for accepting the set value input by an operation of the user by the user;
Voice input determination means (S506, S606, S706) for determining whether or not the set value is input by the voice of the user;
Operation determining means (S502, S602, S702) for determining whether or not the user has operated to set the set value on the operation unit;
When the operation determining unit determines that the user has operated to set the set value on the operation unit, the control unit uses the set value to be used when controlling the air conditioning unit. The set value input to
When the voice input determining means determines that the set value has been input, the control means uses the set value used when controlling the air conditioning unit as the set value input by the user's voice,
Environment change determination means (S504, S604, S704, S541) for determining whether or not a condition estimated that the air-conditioning environment in the passenger compartment has changed is satisfied,
When the sound input determination means determines that the set value has been input, the control means determines that the environment change determination means determines that a condition presumed that the air conditioning environment in the vehicle interior has changed is satisfied. Uses the set value input by the voice of the user when controlling the air conditioning unit.

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