WO2019044211A1 - Climatiseur de véhicule - Google Patents

Climatiseur de véhicule Download PDF

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Publication number
WO2019044211A1
WO2019044211A1 PCT/JP2018/026541 JP2018026541W WO2019044211A1 WO 2019044211 A1 WO2019044211 A1 WO 2019044211A1 JP 2018026541 W JP2018026541 W JP 2018026541W WO 2019044211 A1 WO2019044211 A1 WO 2019044211A1
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WIPO (PCT)
Prior art keywords
air
air conditioning
seat
blower
passage
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Application number
PCT/JP2018/026541
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English (en)
Japanese (ja)
Inventor
友喜 西森
圭 加治屋
Original Assignee
株式会社デンソー
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Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2019044211A1 publication Critical patent/WO2019044211A1/fr

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

Definitions

  • the present disclosure relates to a vehicle air conditioner that performs air conditioning in a vehicle cabin.
  • Patent Document 1 describes a vehicle air conditioner that prevents air volume fluctuation to another air conditioning area when the air conditioning condition of the air conditioning wind to a part of the air conditioning area changes.
  • the air conditioner for a vehicle controls the rotational speed of the blower to increase the air flow from the blower when the air volume of the conditioned air to the first air conditioning region is increased among the two air conditioning regions in the vehicle.
  • the turning angle of the air distribution door is controlled to reduce the air volume ratio of the conditioned air to the second air passage leading to the second air conditioning region.
  • the air distribution door is provided immediately after the evaporator in the air conditioning unit case in order to adjust the air volume ratio to be distributed to the first air blowing passage and the second air blowing passage leading to the first air conditioning area.
  • the rotation angle of the air distribution door is controlled to reduce the air volume ratio to the other second air conditioning area. Therefore, there is a possibility that the air volume to the second air conditioning region may be greatly increased at the initial stage of control. This is because an increase in the air flow rate by the blower is performed before the air flow rate to the second air conditioning area is narrowed by the rotation angle control of the air distribution door.
  • the air volume to the second air conditioning region which has once increased in this manner, decreases as the rotation angle control of the air distribution door approaches the completion stage, and approaches the air volume of the original state to be aimed.
  • An object of the present disclosure is to provide a vehicle air conditioner capable of suppressing a change in air volume in a zone other than a zone in which air volume control conditions have changed among a plurality of air conditioning zones.
  • a vehicle air conditioner is capable of individually air conditioning controlling a plurality of air conditioning zones set in a vehicle cabin, and includes a blower, a plurality of blowout doors, and a control device.
  • the blower is configured to be capable of blowing air to a plurality of blowing passages respectively provided to blow conditioned air to the plurality of air conditioning zones.
  • the control device is provided to control the flow passage cross-sectional area of each of the plurality of blowout passages. The control device controls the operation of the plurality of blowout doors and the operation of the blower, respectively.
  • the control device increases the air volume to the first air conditioning zone in which the air volume control condition has changed among the plurality of air conditioning zones, the plurality of blowoffs that blow the conditioned air to the plurality of air conditioning zones other than the first air conditioning zone
  • the plurality of blow-out doors are controlled to gradually reduce the flow passage cross-sectional area of the passage, and the blower is controlled to start increasing the air flow after the delay time has elapsed since the flow passage cross-sectional area starts to decrease gradually .
  • the delay time has elapsed since the channel cross-sectional area of the passage that blows the conditioned air from this zone has started to be reduced. After that, it starts to increase the air flow.
  • the vehicle air conditioner which can aim at suppression of the air volume change in zones other than a zone where air volume control conditions changed among a plurality of air-conditioning zones can be provided.
  • FIG. 2 is a view on arrow II-II in FIG. It is a figure which shows the some air conditioning zone in a vehicle interior.
  • It is a control block diagram regarding a vehicle air conditioner.
  • It is the time chart which showed the air volume change in the conventional comparative example.
  • It is the time chart which showed the air volume change in the air-conditioner for vehicles of a 1st embodiment.
  • It is the flowchart which showed an example of the control in the vehicle air conditioner of 1st Embodiment.
  • It is the flowchart which showed an example of the control in the vehicle air conditioner of 1st Embodiment.
  • It is the side view which showed the vehicle air conditioner of 2nd Embodiment.
  • FIG. 10 is an arrow view of the XX section in FIG. 9;
  • the first embodiment shows an example of a vehicle air conditioner that can achieve the object of the present disclosure. Therefore, the vehicle air conditioner that can achieve the object of the present disclosure is not limited to the vehicle air conditioner of the first embodiment, and for example, the left and right sides of the front seat side and the left and right sides of the rear seat side with a plurality of air conditioning units. It may be possible to individually control air conditioning.
  • the vehicle air conditioner independently performs air conditioning control on air conditioning zones 1a, 1b, 1c and 1d located in the vehicle interior 1 respectively on the left and right of the front seat and on the left and right of the rear seat. It is an apparatus.
  • the air conditioning zone 1 a is an area corresponding to the driver's seat 2 on the front seat side.
  • the air conditioning zone 1 b is an area corresponding to the front passenger seat 3.
  • the air conditioning zone 1c is an area corresponding to the driver's seat rear seat.
  • the air conditioning zone 1d is an area corresponding to the rear passenger seat side.
  • the vehicle air conditioning system includes an air conditioning unit 5 for independently air conditioning the air conditioning zone 1a, the air conditioning zone 1b, the air conditioning zone 1c and the air conditioning zone 1d.
  • the air conditioning unit 5 is installed on the back of the instrument panel.
  • the air conditioning unit 5 includes a unit case 51 for blowing air into the vehicle interior 1.
  • the unit case 51 is provided with an inside air inlet for introducing inside air from the vehicle interior 1 and an outside air inlet for introducing outside air from the outside of the vehicle compartment.
  • the unit case 51 is provided with an inside / outside air switching door that selectively opens / closes the outside air introduction port and the inside air introduction port.
  • a fan 52 for generating an air flow blown out toward the vehicle interior 1 is provided in the unit case 51 and on the air downstream side of the outside air introduction port and the inside air introduction port.
  • the blower 52 is a blower provided with an impeller and a blower motor for rotating the impeller.
  • an evaporator 53 is provided as an air cooling unit for cooling the air.
  • a heater core 54 as an air heating unit is provided on the air downstream side of the evaporator 53.
  • the evaporator 53 is a heat exchanger that constitutes a refrigeration cycle together with a compressor, a condenser, a liquid receiver, and a pressure reducer.
  • the evaporator 53 cools the air flowing in the unit case 51.
  • the heater core 54 is a heat exchanger that uses engine cooling water of a car as a heat source, and heats the cold air cooled by the evaporator 53.
  • a partition plate 57 a and a partition plate 57 b are provided in the unit case 51 and on the air downstream side of the evaporator 53. As shown in FIG. 2, the partition plate 57 a and the partition plate 57 b partition the inside of the unit case 51 into four passages on the air downstream side of the evaporator 53.
  • the four passages are the driver's seat side passage 51a, the driver's seat side rear seat passage 51c, the passenger seat side passage 51b, and the passenger seat side rear seat passage 51d.
  • the partition plate 57a divides the inside of the unit case 51 into a driver's seat side passage 51a and a driver's seat side rear seat passage 51c, and a passenger's seat side passage 51b and a passenger's seat side rear seat passage 51d.
  • the partition plate 57b divides the inside of the unit case 51 into the driver's seat side passage 51a and the passenger's seat side passage 51b, and the driver's seat side rear seat passage 51c and the passenger's seat side rear seat passage 51d.
  • the partition plate 57a is a flat plate extending in the direction in which the driver's seat side passage 51a and the driver's seat side rear seat passage 51c are aligned and in the air flow direction.
  • the partition plate 57 b is a flat plate extending in the direction in which the driver's seat side passage 51 a and the passenger's seat side passage 51 b are aligned and in the air flow direction.
  • the evaporator 53 is provided over the entire passage in the unit case 51.
  • the heater core 54 is provided to occupy a part of each of the driver's seat side passage 51a, the driver's seat side rear seat passage 51c, the passenger seat side passage 51b, and the passenger seat side rear seat passage 51d. ing.
  • the heater core 54 is provided across the entire passage in the unit case 51 in the direction in which the driver seat side passage 51a and the driver seat side rear seat passage 51c partitioned by the partition plate 57b are arranged, and is orthogonal to this row direction It is provided to occupy the aisle half near the center.
  • a bypass passage 51ab is provided on the side of the heater core 54 located outside of the driver's seat side passage 51a.
  • the bypass passage 51 ab is a passage that allows the cold air cooled by the evaporator 53 to bypass the heater core 54.
  • a bypass passage 51cb is provided on the side of the heater core 54 located outside the driver seat side rear seat passage 51c.
  • the bypass passage 51 cb is a passage for bypassing the cold air cooled by the evaporator 53 to the heater core 54.
  • the bypass passage 51ab and the bypass passage 51cb are passages separated by the partition plate 57b.
  • a bypass passage 51bb is provided on the side of the heater core 54 located on the outside of the passenger seat side passage 51b.
  • the bypass passage 51 bb is a passage for bypassing the cold air cooled by the evaporator 53 to the heater core 54.
  • a bypass passage 51db is provided on the side of the heater core 54 located outside the passenger seat side rear seat passage 51d.
  • the bypass passage 51 db is a passage for bypassing the cold air cooled by the evaporator 53 to the heater core 54.
  • the bypass passage 51bb and the bypass passage 51db are passages separated by the partition plate 57b.
  • the air mix door 55a adjusts the ratio of the amount of air passing through the heater core 54 to the amount of air passing through the bypass passage 51ab in the cold air flowing through the driver's seat side passage 51a according to the degree of opening thereof.
  • the air mix door 55c adjusts the ratio of the amount of air passing through the heater core 54 to the amount of air passing through the bypass passage 51cb in the cold air flowing through the rear seat passage 51c on the driver's seat side.
  • the air mix door 55b adjusts the ratio of the amount of air passing through the heater core 54 to the amount of air passing through the bypass passage 51bb in the cold air flowing through the passenger side passage 51b according to the degree of opening thereof.
  • the air mix door 55d adjusts the ratio of the amount of air passing through the heater core 54 to the amount of air passing through the bypass passage 51db in the cold air flowing through the rear passenger passage 51d on the front passenger seat side.
  • Servo motors as drive units are connected to the air mix doors 55a, 55b, 55c, 55d, respectively.
  • the opening degree of the air mix doors 55a, 55b, 55c, 55d is adjusted by a servomotor controlled by the air conditioner ECU 8.
  • a driver's seat face passage 58a1 and a driver's seat foot passage 58a2 are provided downstream of the heater core 54 on the air downstream side of the driver's seat side passage 51a.
  • the driver's seat face passage 58a1 is a blowout passage communicating with the driver's seat face outlet which opens into the vehicle interior 1.
  • the driver's seat foot passage 58a2 is a blowout passage communicating with the driver's seat foot outlet opening in the passenger compartment 1.
  • the air flowing through the driver's seat face passage 58a1 is blown out to the air conditioning zone 1a set at the position of the driver sitting on the driver's seat 2.
  • the air flowing through the driver's seat foot passage 58a2 is blown out to the air conditioning zone 1a set at the position of the driver sitting on the driver's seat 2.
  • a passenger seat face passage 58b1 and a passenger seat foot passage 58b2 are provided downstream of the heater core 54 on the air downstream side of the passenger passage 51b.
  • the passenger's seat face passage 58b1 is a blowout passage communicating with the passenger's seat face outlet which is open in the vehicle interior 1.
  • the passenger seat foot passage 58b2 is a blowing passage communicating with the passenger seat foot outlet opening in the passenger compartment 1.
  • the air flowing through the passenger's seat face passage 58b1 is blown out to the air conditioning zone 1b set at the position of the passenger sitting on the passenger's seat 3.
  • the air flowing through the passenger seat foot passage 58b2 is blown out to the air conditioning zone 1b set at the position of the passenger seated on the passenger seat 3.
  • a driver seat side rear seat face passage 58c1 is provided downstream of the heater core 54 on the air downstream side of the driver seat side rear seat passage 51c.
  • the driver seat side rear seat face passage 58c1 is a blowout passage communicating with the driver seat side rear seat face outlet which opens in the vehicle interior 1.
  • the driver seat side rear seat foot passage 58c2 is a blowout passage communicating with the driver seat side rear seat foot outlet opening in the vehicle interior 1.
  • the air circulating in the driver seat side rear seat face passage 58c1 is blown out to the air conditioning zone 1c set at the position of the occupant seated in the driver seat side rear seat.
  • the air flowing through the driver seat side rear seat foot passage 58c2 is blown out to the air conditioning zone 1c set at the position of the occupant seated in the driver seat side rear seat.
  • a passenger side rear seat face passage 58d1 is provided downstream of the heater core 54 on the air downstream side of the passenger side rear seat passage 51d.
  • the passenger seat side rear seat face passage 58d1 is a blowout passage communicating with the passenger seat side rear seat face outlet which opens in the passenger compartment 1.
  • the passenger seat side rear seat foot passage 58d2 is a blowout passage communicating with the passenger seat side rear seat foot outlet opening in the passenger compartment 1.
  • the air flowing through the passenger seat side rear seat face passage 58d1 is blown out to the air conditioning zone 1d set at the position of the passenger seated in the passenger seat side rear seat.
  • the air flowing through the passenger seat side rear seat foot passage 58d2 is blown out to the air conditioning zone 1d set at the position of the occupant seated in the passenger seat side rear seat.
  • the driver's seat face passage 58a1 is provided with a face blowing door 56a1 for opening and closing the driver's seat face passage 58a1.
  • the opening degree of the face blowing door 56a1 is adjusted by a servomotor as a drive unit controlled by the air conditioner ECU 8.
  • the driver's seat foot passage 58a2 is provided with a foot outlet door 56a2 for opening and closing the driver's seat foot passage 58a2.
  • the opening degree of the foot blowout door 56a2 is adjusted by a servomotor as a drive unit controlled by the air conditioner ECU 8.
  • the passenger seat face passage 58b1 is provided with a face blowing door 56b1 for opening and closing the passenger seat face passage 58b1.
  • the opening degree of the face blowing door 56b1 is adjusted by a servomotor as a drive unit controlled by the air conditioner ECU 8.
  • the passenger seat foot passage 58b2 is provided with a foot outlet door 56b2 for opening and closing the passenger seat foot passage 58b2.
  • the opening degree of the foot blowing door 56b2 is adjusted by a servomotor as a drive unit controlled by the air conditioner ECU 8.
  • a face blowing door 56c1 for opening and closing the driver seat side rear seat face passage 58c1.
  • the opening degree of the face blowing door 56c1 is adjusted by a servomotor as a drive unit controlled by the air conditioner ECU 8.
  • the driver seat side rear seat foot passage 58c2 is provided with a foot outlet door 56c2 for opening and closing the driver seat side rear seat foot passage 58c2.
  • the opening degree of the foot blowing door 56c2 is adjusted by a servomotor as a drive unit controlled by the air conditioner ECU 8.
  • the passenger seat side rear seat face passage 58d1 is provided with a face blowing door 56d1 for opening and closing the passenger seat side rear seat face passage 58d1.
  • the opening degree of the face blowing door 56d1 is adjusted by a servomotor as a drive unit controlled by the air conditioner ECU 8.
  • the passenger seat side rear seat foot passage 58d2 is provided with a foot outlet door 56d2 for opening and closing the passenger seat side rear seat foot passage 58d2.
  • the opening degree of the foot blowing door 56d2 is adjusted by a servomotor as a drive unit controlled by the air conditioner ECU 8.
  • the unit case 51 is provided with a driver's seat defroster blowout passage for blowing air to the driver's seat side region of the inner surface of the front windshield via the driver's seat side passage 51a.
  • a driver's seat defroster blowout passage for blowing air to the driver's seat side region of the inner surface of the front windshield via the driver's seat side passage 51a.
  • blowout doors for opening and closing the respective blowout passages are provided.
  • the blowout door is driven to open and close by a servomotor.
  • the unit case 51 is provided with a passenger side defroster blowout passage for blowing out air to the passenger side region of the inner surface of the front windshield via the passenger side passage 51b.
  • a blowout door for opening and closing the blowout passage is provided in the air upstream portion of the passenger side defroster blowout passage.
  • the blowout door is driven to open and close by a servomotor.
  • the vehicle air conditioner is provided with an air conditioner ECU 8 which is an air conditioning control device for controlling the air conditioning unit 5.
  • the air conditioner ECU 8 is configured to receive temperature information detected by various sensors 6 such as an outdoor air temperature sensor, a cooling water temperature sensor, a solar radiation sensor, an indoor air temperature sensor, an evaporator temperature sensor, solar radiation amount information, etc. .
  • the outside air temperature sensor detects the temperature outside the vehicle, and outputs an outside air temperature signal Tam corresponding to the detected temperature to the air conditioner ECU 8.
  • the coolant temperature sensor detects the temperature of the engine coolant and outputs a coolant temperature signal Tw corresponding to the detected temperature to the air conditioner ECU 8.
  • the solar radiation sensor provided in the front of the passenger compartment is a two-element type solar radiation sensor disposed at a substantially central portion in the left-right direction of the vehicle inside the front window.
  • the solar radiation sensor detects the amount of solar radiation incident on the air conditioning zone 1a at the driver's seat and the amount of solar radiation incident on the air conditioning zone 1b at the front passenger seat, and the solar radiation amount signals TsDr and TsPa according to the detected solar radiation amounts. Is output to the air conditioner ECU 8.
  • the solar radiation sensor provided at the rear of the passenger compartment is a single-element type solar radiation sensor.
  • the solar radiation sensor detects the amount of solar radiation incident on the vehicle interior 1 from the rear of the vehicle, and outputs a solar radiation amount signal TsRr corresponding to the detected solar radiation amount to the air conditioner ECU 8.
  • An internal air temperature sensor provided in front of the vehicle compartment detects air temperatures of the air conditioning zone 1a and the air conditioning zone 1b which are front seat side air conditioning areas, and outputs an internal air temperature signal TrFr corresponding to the detected temperature to the air conditioner ECU8.
  • An internal air temperature sensor provided at the rear of the vehicle compartment detects the air temperature of the air conditioning zone 1c and the air conditioning zone 1d, which are rear seat air conditioning areas, and outputs an internal air temperature signal TrRr according to the detected temperature to the air conditioner ECU8.
  • the evaporator temperature sensor 86 detects the temperature of the air blown out of the evaporator 53, and outputs an evaporator temperature signal TeFr corresponding to the detected temperature to the air conditioner ECU 8.
  • the air conditioner ECU 8 is an electronic control device integrally formed with a control unit that controls various air conditioning devices connected to the output side.
  • the hardware and software that control the operation of each air conditioning device constitute a control unit that controls the operation of each air conditioning device.
  • the air conditioner ECU 8 includes a device such as a microcomputer operating according to a program as a main hardware element.
  • the air conditioner ECU 8 at least includes an interface unit to which each air conditioning device and the various sensors 6 are connected, an arithmetic processing unit 81, and a storage unit.
  • the storage unit is a non-transitory tangible storage medium that non-temporarily stores a computer readable program.
  • the storage medium may be provided by semiconductor memory or a magnetic disk or the like.
  • the arithmetic processing unit 81 is an arithmetic processing unit, and performs determination processing and calculation according to a predetermined program using environment information acquired from various sensors 6 through the interface unit and the control characteristic map and data stored in the storage unit. Do the processing.
  • the arithmetic processing unit 81 is an arithmetic execution unit in the air conditioner ECU 8 and a determination processing execution unit.
  • the interface unit operates the respective air conditioning components described above based on the determination result by the calculation processing unit 81 and the calculation result. Therefore, the interface unit is the input unit 80 and the control output unit 82 in the control device.
  • the temperature setting switches 9a, 9b, 9c, and 9d are examples of operation units capable of setting the air conditioning output in each air conditioning zone.
  • the temperature setting switches 9a, 9b, 9c, and 9d are also setting operation units that can set air volume control conditions for each of a plurality of air conditioning zones.
  • the air conditioner ECU 8 receives setting temperature signals TsetFrDr, TsetFrPa, TsetRrDr, TsetRrPa of the air conditioning zones 1a, 1b, 1c, 1d set by the occupant operating the temperature setting switches 9a, 9b, 9c, 9d. Ru.
  • the front seat side is indicated by Fr
  • the rear seat side is indicated by Rr
  • the driver's seat side is indicated by Dr
  • the passenger seat side is indicated by Pa, and these are combined to represent each seat of the air conditioning zones 1a to 1d.
  • the temperature setting switch 9a is a setting operation unit capable of setting the set temperature of the air conditioning zone 1a.
  • the temperature setting switch 9b is a setting operation unit capable of setting the set temperature of the air conditioning zone 1b.
  • the temperature setting switch 9c is a setting operation unit capable of setting the set temperature of the air conditioning zone 1c.
  • the temperature setting switch 9d is a setting operation unit capable of setting the set temperature of the air conditioning zone 1d.
  • the air conditioner ECU 8 performs normal control using the target blowout temperature calculated as described below, as an example of air conditioning control.
  • the air conditioner ECU 8 calculates a shoulder cold correction amount using surface temperature information in a predetermined detection range detected by a non-contact temperature sensor 7 described later.
  • the cold shoulder correction amount is used to perform air conditioning correction for the occupant to feel cold on the shoulder due to, for example, the temperature of the side window shield.
  • the air conditioner ECU 8 calculates the amount of solar radiation correction using the surface temperature information of the front seat occupant and the rear seat occupant detected by the non-contact temperature sensor 7. This amount of solar radiation correction takes into consideration the effects of solar radiation from the front to the vehicle interior 1, from the side, and from the rear to the air conditioning control, and is reflected in the target air outlet temperature as a solar radiation correction amount.
  • the air conditioner ECU 8 calculates target blowout temperatures TAOFrDr, TAOFrPa, TAORrDr and TAORrPa for each of the air conditioning zones 1a to 1d using the shoulder cold correction amount and the solar radiation correction amount.
  • the target blowout temperatures TAOFrDr, TAOFrPa, TAORrDr, and TAORrPa are target blowout temperatures calculated as air conditioning corrections in consideration of the shoulder cold correction amount and the solar radiation correction amount.
  • the air conditioner ECU 8 controls each component of the air conditioner shown below based on the target blowout temperatures TAOFrDr, TAOFrPa, TAORrDr, and TAORrPa for each of the air conditioning zones 1a to 1d calculated in this manner. Execute control.
  • the voltage applied to the blower motor of the blower 52 is determined based on the average value of TAOFrDr and TAOFrPa and the average value of TAORrDr and TAORrPa. Then, based on TAOFrDr, TAOFrPa, TAORrDr, and TAORrPa, determination of the inside / outside air intake mode by opening / closing control of the inside / outside air switching door, determination of the outlet mode for each of the air conditioning zones 1a to 1d, and the air mix doors 55a, 55b, 55c , 55d to determine the target opening.
  • the air conditioner ECU 8 outputs a signal for controlling the determined voltage applied to the blower motor of the blower 52 to the blower motor to control the operation of the blower 52.
  • signals for controlling the target openings of the inside / outside air switching door, the blowing passage doors 56a, 56b, 56c, 56d, and the air mix doors 55a, 55b, 55c, 55d are output to the servomotor etc. Control the operation of the
  • the non-contact temperature sensor 7 is provided at a position located forward and above the seat backs 2a and 3a of the driver's seat and the front passenger seat in the vehicle interior 1.
  • the air conditioner ECU 8 is connected to a non-contact temperature sensor 7 that detects surface temperatures of a plurality of parts such as a side window shield and an occupant.
  • the non-contact temperature sensor 7 is a matrix type IR sensor using a thermopile type detection element for detecting a change in electromotive force corresponding to a change in the amount of infrared radiation inputted as a temperature change, and a predetermined number of matrix sensors are arranged
  • the temperature detection cell of The non-contact temperature sensor 7 is housed in one case and installed on the ceiling at the front of the passenger compartment.
  • the non-contact temperature sensor 7 is installed in one place in the vehicle compartment 1 in front of and above the head of the occupant seated in the front seat, and can be installed, for example, on the ceiling.
  • Each temperature detection cell has a function of absorbing infrared rays incident from a temperature detection target present in a preset detection range through a lens or the like to convert it into heat, and further converting the converted heat into a voltage value.
  • Each temperature detection cell outputs a signal of the obtained voltage value to the air conditioner ECU 8.
  • the air conditioner ECU 8 can detect the temperature information for each detection range by calculating the temperature using the voltage value input from each temperature detection cell.
  • the detection range which can be detected by the non-contact temperature sensor 7 is set to a position corresponding to each of the driver's seat 2, the passenger seat 3, the driver seat side of the rear seat 4 and the passenger seat side of the rear seat 4.
  • the detection range set at the position corresponding to each seat is one or more.
  • the non-contact temperature sensor 7 can detect the surface temperature information of the occupant seated in the seat where the detection range is set by detecting the surface temperature of the predetermined detection range.
  • the position is a range in which the surface temperature of the seat back of the seat can be detected.
  • the detection range set for the seat back of the seat is a range in which the upper body temperature or the abdominal temperature of the occupant can be detected.
  • the detection range set for the seating seat is a range in which the occupant's waist temperature or leg temperature can be detected.
  • the non-contact temperature sensor 7 can detect surface temperature information of a predetermined detection range set at a plurality of places in the vehicle interior 1. Therefore, the vehicle air conditioner can detect the surface temperature of the occupant present in each of the air conditioning zone 1a, the air conditioning zone 1b, the air conditioning zone 1c, and the air conditioning zone 1d.
  • the arithmetic processing unit 81 of the air conditioner ECU 8 can determine whether the surface temperature information regarding the detection range set for each seat of the vehicle interior 1 is included in a predetermined human-body-equivalent temperature range.
  • the predetermined human-body-corresponding temperature range is a temperature range assumed as human-body temperature, and is stored in advance in a predetermined program.
  • the arithmetic processing unit 81 When the surface temperature information of the detection range set for each seat is included in the human-body equivalent temperature range, the arithmetic processing unit 81 considers that an occupant who has not been present in the corresponding seat has boarded the seat, Increase the air conditioning output provided to the occupants. Further, the arithmetic processing unit 81 performs control to suppress the change of the air conditioning output in the air conditioning zone in which the passenger is not detected to be seated among the plurality of air conditioning zones.
  • the arithmetic processing unit 81 When the surface temperature information of the detection range set for each seat is included in the human-body equivalent temperature range, the arithmetic processing unit 81 performs automatic air conditioning according to the detected surface temperature information for the corresponding air conditioning zone. Carry out the operation. For example, when the detected surface temperature information is higher than the set temperature, the air conditioning system for vehicles increases the volume of cold air to the corresponding air conditioning zone, and the detected surface temperature information is lower than the set temperature. Increase the volume of warm air to the air conditioning zone.
  • the vehicle air conditioner when the vehicle air conditioner recognizes that a person gets into the seat from the outside of the vehicle, it performs air conditioning control suitable for the surface temperature information of the passenger who has got on the vehicle, and provides comfort as well It provides a control that is less likely to cause an unpleasant feeling by suppressing the change in air conditioning to the other occupants.
  • the arithmetic processing unit 81 establishes a human-body temperature condition, and an occupant is present in the seat where the corresponding detection range is set. It determines that it has become That is, when the surface temperature information detected by the non-contact temperature sensor 7 changes to a state satisfying the human body temperature condition assumed as the human body temperature, the arithmetic processing unit 81 allows the passenger to get into the corresponding seat and get on. It is determined that the condition is established.
  • the air conditioner ECU 8 determines that the air volume control condition has changed in the corresponding seat according to the determination result.
  • the human body equivalent temperature range is a predetermined upper and lower width (for example, within the range of 35 ° C. to 37 ° C.) which is the body temperature of the person at peace, taking into consideration that a person who was in contact with the open air in winter or summer gets on It is a temperature range set by giving an upper and lower width within 10 ° C.).
  • the surface temperature information in the detection range is not included in the temperature range equivalent to the human body, or if the temperature is high or low, for example, people or objects are present in the detection range. It is determined that the machine is not in the state or in the state in which the package or the non-human heating element is placed.
  • FIG. 5 is a comparative example with respect to the air-conditioning operation control of 1st Embodiment, and is the time chart which showed the air volume change by control of the conventional vehicle air conditioner.
  • the air volume of the air volume increasing zone is increased and the air volume of the air volume maintenance zone other than the air volume increasing zone is maintained.
  • Exercise control In this case, at time T1, an increase in the air flow rate by the blower is started, and at the same time, the door opening degree in the passage corresponding to the air flow rate maintenance zone is started to be narrowed.
  • the air volume of the air volume maintaining zone which is the air volume maintaining seat starts to increase from time T1.
  • the air volume in the air volume maintenance zone continues to increase until the air volume increase time by the blower, for example, the rotation speed increase time of the blower ends, and then continues to decrease until time T3 when the door opening degree throttling operation is completed. That is, the air volume in the air volume maintenance zone is rapidly increased after the air volume increase by the blower starts and continues to decrease until the time T3 when the door opening throttle operation is completed, and is maintained back to the air volume before the start of control. become.
  • the air volume in the air volume increasing zone continues to increase during the air volume increasing time by the blower, it is possible to provide the occupants of the air volume increasing zone with the comfort improvement by the increase of the air conditioning output.
  • the air volume in the air volume maintenance zone temporarily increases greatly, and therefore, the occupant in the air volume maintenance zone may feel discomfort due to the air volume increase.
  • the air volume in the air volume maintenance zone continues to increase simultaneously with the start of control, the occupants of the air volume maintenance zone receive as an uncomfortable feeling the increase in air volume relative to the proper air volume state before the start of control. The larger the size, the greater the discomfort.
  • the vehicle air conditioner according to the first embodiment implements the air conditioning operation control illustrated in the time chart of FIG.
  • FIG. 6 is a time chart showing a change in air volume due to the control of the vehicle air conditioner of the first embodiment.
  • the air volume of the air volume maintaining zone other than the air volume increasing zone is compared with the original air volume before control. Control is performed to make the air volume close to the original after increasing or decreasing it so as not to change significantly.
  • the delay time (TB-TA time) elapses after the door opening degree in the passage corresponding to the air volume maintenance zone is started at time TA, the increase of the air blowing amount by the fan 52 is started.
  • the air volume in the air volume increase zone continues to increase during the air volume increase time (T2-T1 time) by the blower 52, comfort for the occupant in the air volume increase zone is improved by the increase of the air conditioning output. it can.
  • the air volume in the air volume maintenance zone starts to decrease gradually from the door opening degree throttle start time TA, turns to increase near the air volume increase start time TB by the fan 52, and even after recovering to the original air volume before time TA at time TC.
  • the air volume increase completion time by the blower 52 continues to increase until time TD.
  • the air volume in the air volume maintenance zone continues to gradually decrease after time TD and recovers to the original air volume before time TA near the door opening degree squeeze completion time TE.
  • the air volume in the air volume maintenance zone temporarily decreases below the original air volume after the start of the door opening degree reduction. Then, the air volume in the air volume maintenance zone is reduced from the original air volume until it starts to increase from the minimum air volume with the start of the air volume increase by the blower 52 after the delay time elapses and returns to the original air volume. Further, the air volume in the air volume maintenance zone increases from the original air volume until the air volume increase by the blower 52 is completed and the door opening degree is completed after the air volume is restored to the original air volume.
  • the magnitudes of the air flow reduction relative to the original wind volume and the wind volume increase illustrated in FIG. 6 are smaller than the wind volume increase relative to the original wind volume illustrated in FIG. For this reason, the vehicle air conditioner according to the first embodiment can suppress the driver's discomfort in the air volume maintenance zone more than the conventional device.
  • the air volume increase start time TB by the blower 52 is delayed from the door opening throttling start time TA, and the air volume increase by the blower 52 is completed before the door opening throttling completion time TE.
  • the air volume in the air volume maintenance zone decreases temporarily (TC-TA time) and increases temporarily (TE-TC time) compared to the original air volume. Control to make the same degree.
  • the vehicle air conditioner according to the first embodiment has a time TC between the door opening degree throttle start time TA and the door opening degree throttle completion time TE, an air volume increase start time TB by the blower 52, and an air volume increase completion time TD.
  • Control is made to match the intermediate time TC. That is, the time TC is the timing of an intermediate time between the start and the completion of the reduction of the flow passage cross-sectional area of the blowout passage by the blowout door, and the start and the completion of the increase of the air flow by the blower 52 It is the timing of the intermediate time with the completion time.
  • the vehicle air conditioner executes the processing in each step of the flowchart shown in FIG. 7 in order while the air conditioner power switch is turned on, and repeatedly processes these steps, so that the figure is always displayed while the air conditioner power switch is on.
  • the program related to the control shown in FIG. 7 is stored in the storage unit of the air conditioner ECU 8.
  • the time chart shown in FIG. 6 shows the process of steps S100, S110, S120, and S130 of FIG.
  • the air conditioner ECU 8 determines in step S100 whether an air flow increase command has been input for at least one of the air conditioning zones 1a to 1d.
  • the air volume increase command is input to the air conditioner ECU 8 when the occupant operates the setting operation unit.
  • the air volume control condition is set for the air conditioning zone corresponding to the operated temperature setting switch.
  • the arithmetic processing unit 81 determines that there is an air volume increase instruction in step S100 when there is an air volume increase instruction to perform air conditioning to increase the air volume to the corresponding air conditioning zone.
  • step S100 When it is determined in step S100 that there is no air volume increase command in the step S100, the air conditioner ECU 8 carries out the normal control using the target blowout temperature calculated as described above in step S105. The air conditioner ECU 8 returns to step S100 again, and repeatedly executes the presence determination of the air volume increase command for each air conditioning zone.
  • step S100 If it is determined in step S100 that there is an air volume increase command, the air conditioner ECU 8 blows out to an air conditioning zone (air volume maintenance seat) other than the first air conditioning zone in which the air volume increase command has been issued according to the determination process of step S100. Execute processing to reduce the opening of the door.
  • the processing timing of step S110 corresponds to the door opening degree throttle start time TA illustrated in FIG.
  • the process of step S110 is continued until the door opening degree closing completion time TE shown in FIG. 6 is reached.
  • step S120 the arithmetic processing unit 81 determines whether or not a predetermined delay time has elapsed after the process of step S110 is started.
  • step S120 When it is determined in step S120 that the delay time has elapsed, the arithmetic processing unit 81 executes a process of controlling the blower 52 so as to increase the air volume of the conditioned air blown toward the vehicle interior 1 in step S130.
  • the timing of the process of step S130 corresponds to the air volume increase start time TB illustrated in FIG.
  • the air conditioner ECU 8 executes the process of step S130 until the air volume increase completion time TD shown in FIG. 6, returns to step S100 again, and repeatedly executes the presence / absence determination of the air volume increase command for each air conditioning zone.
  • step S100 the air conditioner ECU 8 determines whether the air flow control condition has changed for any of the air conditioning zones or the seats.
  • steps S110, S120, and S130 the air conditioner ECU 8 increases the air conditioning output of the first air conditioning zone in which the air volume control condition has changed when there is a change in the air volume control condition, and moves to a zone other than the first air conditioning zone. Conduct air conditioning operation to maintain air volume.
  • step S100A the arithmetic processing unit 81 determines whether there is a seat for which the boarding condition is satisfied as described above. The determination process of whether or not the riding condition is established is performed by determining whether or not the surface temperature information regarding the detection range set in each seat satisfies the human body temperature condition described above.
  • step S100A If it is determined in step S100A that the riding condition is not established, the air-conditioner ECU 8 returns to step S90 and reads all detected temperature signals detected by the non-contact temperature sensor 7. If it is determined in step S100A that the riding condition is satisfied, the air conditioner ECU 8 sequentially executes the processes of steps S110, S120, and S130.
  • the air conditioner ECU 8 determines in S100A whether or not the air flow control condition has changed for any of the air conditioning zones or the seats. In steps S110, S120, and S130, the air conditioner ECU 8 increases the air conditioning output of the first air conditioning zone, which has changed when there is a change in the air volume control condition, and changes the air volume to the zones other than the first air conditioning zone. Conduct air conditioning operation to maintain.
  • the vehicle air conditioning system includes a blower 52 capable of blowing air to a plurality of blowing passages respectively provided to blow conditioned air to the plurality of air conditioning zones 1a to 1d, and a plurality of blowing passages. And a plurality of blow-out doors provided to be able to control the flow passage cross-sectional area.
  • the air conditioner ECU 8 is a blowout passage that blows conditioned air to the air conditioning zones other than the first air conditioning zone when increasing the air volume to the first air conditioning zone in which the air volume control condition changes among the plurality of air conditioning zones 1a to 1d.
  • the blowout door is controlled so that the flow passage cross-sectional area gradually decreases.
  • the air conditioner ECU 8 controls the blower 52 to start increasing the air flow rate after the delay time has elapsed since the flow passage cross-sectional area of the blowout passage starts to gradually decrease.
  • this vehicle air conditioner when the air volume to at least one of the plurality of air conditioning zones 1a to 1d is increased, the reduction of the flow passage cross-sectional area of the passage for blowing the conditioned air to the air volume increasing zone is started. After the delay time has elapsed, the air flow rate starts to increase.
  • this control it is possible to suppress an abrupt increase in the air volume after the control start for the air volume maintaining zone in which the air volume is not increased. For this reason, it is possible to provide comfort by strengthening the air conditioning output to the occupant of the air volume increase zone while suppressing the discomfort of the occupant present in the air volume maintenance zone.
  • this vehicle air conditioner it is possible to suppress the change of the air volume in the zones other than the zone where the air volume control condition has changed among the plurality of air conditioning zones 1a to 1d.
  • the air conditioner ECU 8 controls the operation of the blowout door and the action of the blower 52 so as to complete the increase of the air flow rate by the blower 52 before the reduction of the flow passage cross-sectional area of the blowout passage by the blowout door is completed. According to this control, it is possible to complete the air volume adjustment in the air volume maintenance zone in accordance with the completion of the flow path throttling by the blowout door which requires the operation completion time more than the air flow volume increase time. With this air volume maintenance adjustment, it is possible to provide control in which the air volume change felt by the occupant in the air volume maintenance zone is suppressed.
  • the air volume of the air conditioning air blown out to the air conditioning zones other than the first air conditioning zone temporarily decreases compared to the air volume before the change of the air volume control condition.
  • the operation of the blowout door and the operation of the blower 52 are controlled so as to make the decrease time equal to the increase time temporarily increasing with the increase of the air flow. According to this control, since the air flow reduction time felt by the occupant in the air flow maintenance zone and the air flow increase time become equivalent to each other, it is possible to provide control in which the discomfort felt by the occupant due to the air flow change is suppressed.
  • the air conditioner ECU 8 uses an air blower 52 to start the reduction of the flow passage cross-sectional area of the discharge passage by the blowout door and the intermediate time between completion and completion.
  • the operation of the blowout door and the operation of the blower 52 are controlled so as to match the timing of the intermediate time between the start of the increase of the air flow and the completion of the completion. According to this control, the magnitude of the decrease in the air flow felt by the occupant in the air flow maintenance zone and the magnitude of the increase in the air flow become comparable to each other.
  • the air conditioner ECU 8 determines that the air volume control condition has changed when the air conditioning control condition is changed by the setting operation unit that can set the air conditioning control condition for each of the plurality of air conditioning zones. According to this control, it is possible to provide an increase in the air volume to the air volume increase zone based on the air conditioning control condition changed by the occupant's intention, and for the other zones, the vehicle air conditioning which suppresses the discomfort with the original air conditioning condition. It can provide the device.
  • the air conditioner ECU 8 detects the surface temperature information for each of the plurality of detection ranges set in each of the plurality of air conditioning zones, and the surface temperature information detected by the non-contact temperature sensor 7 satisfies the human body temperature condition assumed as the human body temperature.
  • the air volume control condition When changing to the state, it is determined that the air volume control condition has changed. According to this control, the air volume increase to the air volume increase zone can be provided based on the air conditioning control condition automatically changed according to the surface temperature of the occupant, and the sense of discomfort with the original air conditioning condition is suppressed for the other zones. It is possible to provide a vehicle air conditioner.
  • the plurality of air conditioning zones 1a to 1d are four zones respectively corresponding to the driver's seat 2, the passenger seat 3, the driver's seat side rear seat and the passenger side rear seat. According to this, with respect to each of the driver's seat 2, the passenger seat 3, the driver's seat side rear seat and the passenger side rear seat of the vehicle interior 1, the air volume increase seat and the air volume maintenance seat are distinguished according to the situation of each seat. A vehicle air conditioner that provides highly comfortable air conditioning is obtained.
  • the plurality of air conditioning zones 1a to 1d are three zones respectively corresponding to the driver's seat 2, the passenger seat 3, and the rear seat. According to this, for each of the driver's seat 2, the passenger seat 3, and the rear seat in the vehicle compartment 1, a vehicle providing highly comfortable air conditioning in which the air volume increase seat and the air volume maintenance seat are distinguished according to the situation of each seat. An air conditioner is obtained.
  • the air conditioning unit 105 of the second embodiment is different from the air conditioning unit 5 of the first embodiment in that six air mix doors are provided.
  • the air conditioning unit 105 is provided with an air mix door 155 a upstream of the air flow from the heater core 54.
  • the air mix door 155a is a temperature adjustment door that adjusts the temperature of air blown out from the driver's seat foot outlet to the air conditioning zone 1a.
  • the air mix door 155a adjusts the ratio of the amount of air passing through the heater core 54 to the amount of air not passing through the heater core 54 in the cold air flowing toward the driver's seat foot outlet according to the opening degree.
  • the air conditioning unit 105 is provided with an air mix door 155 b upstream of the air flow from the heater core 54.
  • the air mix door 155b is a temperature adjustment door that adjusts the temperature of air blown out from the passenger seat foot outlet to the air conditioning zone 1b.
  • the air mix door 155b adjusts the ratio of the amount of air passing through the heater core 54 to the amount of air not passing through the heater core 54 in the cold air flowing toward the passenger seat foot outlet according to the opening degree.
  • the air conditioning unit 105 of the second embodiment is provided with six air mix doors in order to individually air-control four air conditioning zones of the vehicle interior 1. As shown in FIG. 10, the air mix door 55c and the air mix door 55d are located between the air mix door 155a and the air mix door 155a, and the air mix doors 155a, 55c, 55d and 155b are the air mix doors 55a and 55b. Located below the
  • the present disclosure is not limited to the above embodiments.
  • the present disclosure includes the above embodiments and variations based on them by those skilled in the art.
  • the present disclosure is not limited to the combination of parts and elements shown in the above-described embodiments, and can be implemented with various modifications.
  • the present disclosure can be implemented in various combinations.
  • the present disclosure can have additional parts that can be added to the above embodiments.
  • the present disclosure includes those in which parts or elements of the above-described embodiments are omitted.
  • the present disclosure includes replacement of parts or elements, or a combination between the above-described embodiments.
  • the technical scope of the present disclosure is not limited to the technical scope of the above-described embodiment.
  • the technical scope of the present disclosure is to be understood to include all modifications within the technical scope and equivalent meaning and scope of the above-described embodiment.
  • the vehicle air conditioner separates the air conditioning zones 1a, 1b, 1c and 1d located in the driver's seat 2, the passenger seat 3, the driver's seat rear seat, and the passenger seat's rear seat, respectively.
  • the vehicle air conditioner achieving the purpose of the present disclosure may be a device for individually air conditioning controlling the air conditioning zones corresponding to the driver's seat 2, the passenger seat 3, and the rear seat, or equivalent to the front seat and the rear seat. It may be an apparatus for individually controlling the air conditioning zone to be controlled.
  • the temperature setting switches 9a, 9b, 9c, 9d are operation units that can set the set temperatures of the air conditioning zones, but the present invention is not limited to this configuration.
  • the temperature setting switches 9a, 9b, 9c, 9d are operation units capable of setting the air conditioning output in each air conditioning zone, and may be configured as an operation unit capable of setting the air flow rate for each air conditioning zone, for example.
  • the non-contact temperature sensor 7 detects the occupant as a zone in which the front seat zone and the rear seat zone are divided into two zones
  • the present invention is applied to a vehicle having three rows of seats. The occupant can be detected in each zone obtained by dividing the interior 1 into three in the front-rear direction.

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

Abstract

Un climatiseur de véhicule capable de commander la climatisation de chacune des nombreuses zones de climatisation configurées dans une cabine de véhicule comprend : une soufflante d'air (52) ; une pluralité de portes de sortie (56a1. 56a2. 56b1. 56b2. 56c1. 56c2. 56d1. 56d2) et un contrôleur (8). La soufflante d'air pousse l'air vers une pluralité de voies de sortie (58a1, 58a2, 58b1, 58b2, 58c1, 58c2, 58d1, 58d2) pour souffler un flux d'air conditionné dans chacune des nombreuses zones de climatisation. Lors de l'augmentation du volume d'écoulement d'air soufflé vers une première zone de climatisation dans laquelle la condition de régulation de flux d'air a changé, la première zone de climatisation figurant parmi les nombreuses zones de climatisation, le dispositif de commande contrôle les nombreuses portes de sortie de façon à diminuer progressivement les zones de section transversale des trajets d'écoulement dans les nombreux trajets de sortie pour souffler l'écoulement d'air conditionné vers les nombreuses zones de climatisation autres que la première zone de climatisation. De même, le dispositif de commande contrôle la soufflante d'air pour démarrer l'augmentation du volume d'écoulement d'air une fois le temps de retard écoulé depuis le début de la diminution progressive dans les zones de section transversale des trajets d'écoulement.
PCT/JP2018/026541 2017-08-29 2018-07-13 Climatiseur de véhicule WO2019044211A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017164685A JP6760230B2 (ja) 2017-08-29 2017-08-29 車両用空調装置
JP2017-164685 2017-08-29

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WO2019044211A1 true WO2019044211A1 (fr) 2019-03-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522112U (ja) * 1991-09-06 1993-03-23 三菱重工業株式会社 自動車用空調装置
JP2003136952A (ja) * 2001-10-30 2003-05-14 Denso Corp 車両用空調装置
JP2007238046A (ja) * 2006-03-13 2007-09-20 Nissan Motor Co Ltd 車両用空調装置
JP2017039464A (ja) * 2015-08-21 2017-02-23 株式会社デンソー 車両用空調装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522112U (ja) * 1991-09-06 1993-03-23 三菱重工業株式会社 自動車用空調装置
JP2003136952A (ja) * 2001-10-30 2003-05-14 Denso Corp 車両用空調装置
JP2007238046A (ja) * 2006-03-13 2007-09-20 Nissan Motor Co Ltd 車両用空調装置
JP2017039464A (ja) * 2015-08-21 2017-02-23 株式会社デンソー 車両用空調装置

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