JP4269905B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner that controls air conditioning in a passenger compartment using a non-contact temperature sensor that detects the surface temperature of an occupant in a non-contact manner.

  Conventionally, the surface temperature of an occupant in the passenger compartment is detected in a non-contact manner using an infrared temperature sensor that forms a non-contact temperature sensor, and the air conditioning state in the passenger compartment is controlled using the detected surface temperature. An air conditioner for vehicles that realizes comfortable air conditioning has been proposed (for example, see Patent Document 1).

  It also calculates the target air temperature for the air blown out to the driver side air conditioning zone in the passenger compartment and the target air temperature for the air blown out to the passenger side air conditioning zone. A vehicle air conditioner that independently controls the temperature of the blown air blown to the driver's seat side air conditioning zone and the temperature of the blown air blown to the passenger seat side air conditioning zone based on the blowout temperature has been proposed (for example, Patent Document 2).

In this vehicle air conditioner, one blower that blows air toward the driver seat side air conditioning zone and the passenger seat side air conditioning zone is provided. Then, the air flow rate of the blower (hereinafter referred to as the driver seat side air flow rate) is determined based on the driver seat side target blowing temperature, and the air flow rate of the blower (hereinafter referred to as the passenger seat side sending) is determined based on the passenger seat side target blowing temperature. The air volume). Along with this, the average value of the driver seat side air flow rate and the passenger seat side air flow rate is determined as the actual air flow rate of the blower.
Japanese Patent Laid-Open No. 2001-191779 JP 2000-153710 A

  By the way, the inventors detect the surface temperature of the driver side occupant and the surface temperature of the passenger side occupant with an infrared temperature sensor in combination with the vehicle air conditioners disclosed in Patent Documents 1 and 2 described above. Based on the surface temperature of the passenger, we examined in detail the independent control of the temperature of the air blown out to the driver's side air conditioning zone and the temperature of the air blown out to the passenger side air conditioning zone. I found out.

  That is, when an occupant enters the passenger seat side air conditioning zone from the outside of the passenger compartment, the surface temperature of the occupant who enters the passenger seat is detected by an infrared temperature sensor, and based on the detected surface temperature, the passenger seat side air conditioning zone is detected. Control the temperature of the blown air blown out. Along with this, for example, in winter, warm air corresponding to the passenger's surface temperature is blown out to the passenger who has entered the passenger seat side air conditioning zone, and a comfortable feeling can be given.

  However, when a passenger is already in the driver's seat side air conditioning zone, the temperature of the air blown out to the driver's seat side air conditioning zone is controlled based on the surface temperature of the driver's seat side passenger, but the passenger side Immediately after the occupant enters the air-conditioning zone, the surface temperature of the passenger on the passenger side is greatly affected by the environment outside the passenger compartment, and thus differs greatly from the surface temperature of the occupant on the driver's seat.

  Therefore, as in Patent Document 2 described above, if the airflow rate of the blower is controlled using the average value of the airflow rate on the driver's seat side and the airflow rate on the passenger seat as it is, even if the surface temperature of the driver's seat side occupant is constant The amount of air sent to the driver seat side air conditioning zone increases.

  For example, in winter, when the amount of warm air blown to the driver's seat side air conditioning zone increases, it becomes uncomfortable for the driver's seat passenger and the warm air feels uncomfortable. Further, in summer, the amount of cool air blown to the driver's seat side air conditioning zone increases, so that the driver's seat side passenger is too cold and the cold air feels uncomfortable.

  In view of the above points, the present invention provides a vehicle air conditioner that, when an occupant gets in from outside the passenger compartment, gives comfort to the occupant who rides in, and suppresses discomfort to an occupant seated in advance. The purpose is to provide.

In order to achieve the above object, according to the first aspect of the present invention, the first and second air-conditioning zones (1c, corresponding to the first and second seats (4c, 4d) arranged on the left and right in the passenger compartment are provided. A blower (62) for blowing air toward 1d);
First and second temperature adjusting means (65a, 65b) for independently adjusting the temperature of the air blown toward the first and second air conditioning zones,
First and second non-contact temperature detectors (71, 72) for independently detecting non-contact surface temperatures of left and right occupants seated in the first and second seats;
First and second temperatures for independently controlling the first and second temperature adjusting means based on the surface temperatures of the left and right occupants detected by the first and second non-contact temperature detecting units. Control means (S126, S128);
Boarding determination means (S100,...) For determining whether or not an occupant has boarded at least one of the first and second seats;
Seat determination means for determining whether an occupant is seated in advance in the other of the first and second seats when the occupant determination means determines that an occupant has entered the one seat side. (S102),
When the seating determination means determines that an occupant has been seated in advance in the other seat, the surface temperature of the occupant who has entered the one seat side and the surface temperature of the occupant who has previously seated in the other seat And air blowing control means (S103,...) For controlling the air blowing amount of the blower based only on the surface temperature of the passenger previously seated in the other seat.

  According to the first aspect of the present invention, when an occupant gets into one of the seats, the temperature of the air blown into one of the air-conditioning zones is adjusted based on the surface temperature of the occupant who has entered the seat. , Can give a comfortable feeling to the occupants who boarded.

  On the other hand, when an occupant is seated in advance in the other seat, the air flow rate of the blower is controlled based on the surface temperature of the occupant seated in advance in the other seat. The amount of blown air is controlled based on the surface temperature of the occupant previously seated in the other seat. Therefore, the amount of air blown to the other air-conditioning zone is not affected by the occupant getting into one of the seats, and it is possible to suppress discomfort to the occupant who was previously seated in the other seat.

  In the first aspect of the present invention, the boarding determination means is not limited to the case where it is determined whether or not an occupant has boarded only one of the first and second seats. Whether or not an occupant has entered the second seat may be determined independently for each seat.

  According to the invention described in claim 2, in the invention described in claim 1, when the seating determination means determines that no occupant is seated in advance in the other seat, the air blowing control means is: The amount of air blown from the blower is controlled based on the surface temperature of an occupant riding on the one seat side.

  Therefore, the amount of air blown out to one air conditioning zone is controlled based on the surface temperature of the occupant riding in one of the seats, so that a stronger comfort can be given to the occupant riding in. .

  By the way, immediately after an occupant gets into one of the seats, the surface temperature of the occupant who has entered the vehicle is affected by the environment outside the passenger compartment. When the period elapses, the surface temperature of an occupant who has entered one seat and the surface temperature of an occupant seated in the other seat are approximated and stabilized by the air conditioning operation of the vehicle air conditioner.

  For this reason, as in the invention described in claim 3, when the seating determination means determines that an occupant has been seated in the other seat in advance, the boarding determination means determines that the occupant has entered the one seat side. When a predetermined period has elapsed since the determination, the air blow control means (S107) sends the blower based on the surface temperatures of the left and right occupants detected by the first and second non-contact temperature detectors. The air volume may be controlled.

Specifically, in the invention according to any one of claims 1 to 3, the first and second non-contact temperature detectors detected by the first and second non-contact temperature detectors as in the invention according to claim 4. First and second target temperatures for calculating the first and second target temperatures (TAORrDr and TAORrPa) of the air blown toward the first and second air conditioning zones based on the surface temperatures of the left and right occupants, respectively. It has a calculation means (S101 ...),
The first and second temperature control means are configured to cause the temperature of air blown toward the first and second air conditioning zones to approach the first and second target temperatures, respectively. When the two temperature adjusting means are controlled independently,
When the seating determination means determines that an occupant has been seated in advance on the other seat, the air blowing control means (S103) corresponds to the other seat among the first and second target temperatures. It is necessary to control the blower volume of the blower based on the target temperature.

Further, in the invention according to any one of claims 1 to 4, according to the invention according to claim 5, the air blown by the blower is directed toward the first and second air conditioning zones, respectively. First and second outlets (66a, 66b) to be blown out;
First and second wind direction adjusting means (661a, 661b) for independently adjusting the direction of air flow blown from the first and second outlets (66a, 66b);
First and second wind direction control means (662a, 662b) for independently controlling the first and second wind direction adjusting means,
When the seating determination means determines that no passenger is seated in advance in the other seat, the wind direction control means corresponding to the other seat of the first and second wind direction control means is the first seat. 1. Control the airflow direction adjusting means on the other seat side out of the second airflow direction adjusting means, and the air flow blown out from the air outlet outlet on the other seat side out of the first and second airflow outlets. It is directed to the one seat (4c) side.

  Therefore, of the first and second air conditioning zones, the air conditioning zone on the one seat (4a) side is also air-conditioned by the air blown out from the air outlet on the other seat side. Therefore, it is possible to give a stronger comfort to the occupant who gets into one of the seats.

  Further, the boarding determination means (S100...) Has a temperature detected by the non-contact temperature detecting unit on the one seat side of the first and second non-contact temperature detecting units as in the sixth aspect of the invention. If the temperature changes by more than a predetermined temperature, it may be determined that an occupant has entered the one seat side.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.

(First embodiment)
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic plan view showing an air outlet arrangement state of an indoor air conditioning unit of the vehicle air conditioner according to this embodiment, and FIG. 2 is an overall configuration diagram including the indoor air conditioning unit and an electric control block.

  In the present embodiment, the air conditioning control is independently performed on a total of four air conditioning zones 1a, 1b, 1c, and 1d in the front, rear, left, and right sides of the vehicle interior 1. 1 and 2 show the case of a right-hand drive vehicle. The air conditioning zones 1a to 1d will be described more specifically. The front seat right air conditioning zone 1a is the right side of the front seat air conditioning zone, that is, the driver's seat. Located on the 2nd side. The front seat left air conditioning zone 1b is located on the left side of the front seat air conditioning zone, that is, on the passenger seat 3 side.

  The rear seat right air conditioning zone 1c is located on the right side of the rear seat air conditioning zone, that is, the rear right seat 4a side, and the rear seat left air conditioning zone 1d is the left side of the rear seat air conditioning zone, ie, the rear right seat. Located on the 4b side. Note that the front, rear, left, and right arrows in FIG. 1 indicate the front, rear, left, and right directions when the vehicle is mounted.

  The indoor air conditioning unit of the vehicle air conditioner includes a front seat air conditioning unit 5 and a rear seat air conditioning unit 6. The front seat air conditioning unit 5 is for independently adjusting the air conditioning state of the left and right air conditioning zones 1a and 1b of the front seat, and the rear seat air conditioning unit 6 is the rear seat left and right air conditioning zone 1c, It is for adjusting each air-conditioning state of 1d independently. In the present embodiment, the air conditioning state indicates, for example, the temperature of the blown air, the air volume, switching of the blowout port (that is, a blowout mode described later) and the like.

  The front seat air conditioning unit 5 is disposed inside the front instrument panel 7 of the vehicle interior 1, and the rear seat air conditioning unit 6 is disposed at the rearmost of the vehicle interior 1. The front seat air conditioning unit 5 includes a duct 50 for blowing air to the front seat side of the vehicle interior 1. In the most upstream portion of the duct 50, an inside air introduction port 50a for introducing inside air from the vehicle interior 1 and an outside air introduction port 50b for introducing outside air from the outside of the vehicle interior are provided.

  Further, the duct 50 is provided with an inside / outside air switching door 51 that selectively opens and closes the outside air introduction port 50b and the inside air introduction port 50a. The inside / outside air switching door 51 is provided with a servo motor 51a as a driving means. It is connected.

  Further, a centrifugal blower 52 that generates an air flow blown toward the air conditioning zones 1a and 1b is provided in the duct 50 on the air downstream side of the outside air introduction port 50b and the inside air introduction port 50a. The blower 52 includes a centrifugal impeller and a front seat side blower motor 52a that rotates the impeller.

  Further, an evaporator 53 as an air cooling means for cooling the air is provided on the downstream side of the centrifugal blower 52 in the duct 50, and further, on the downstream side of the evaporator 53, the air A heater core 54 is provided as a heating means.

  A partition plate 57 is provided in the duct 50 on the air downstream side of the evaporator 53, and the partition plate 57 allows the air passage in the duct 50 to pass through two passages on the left and right sides of the vehicle, that is, the driver's seat side passage 50c. And the passenger seat side passage 50d.

  A bypass passage 50e is formed on the side of the heater core 54 in the driver seat side passage 50c, and a bypass passage 50f is formed on the side of the heater core 54 in the passenger seat side passage 50d. These bypass passages 50 e and 50 f bypass the cool air cooled by the evaporator 53 with respect to the heater core 54.

  In the driver seat side passage 50c and the passenger seat side passage 50d, air mix doors 55a and 55b are provided on the air upstream side of the heater core 54 so as to be independently operable. The driver seat side air mix door 55a adjusts the ratio of the amount of cool air flowing through the driver seat side passage 50c passing through the heater core 54 (warm air amount) and the amount passing through the bypass passage 50e (cold air amount) depending on the opening degree. Then, the temperature of the air blown to the front driver's seat side is adjusted.

  Further, the passenger seat side air mix door 55b has a ratio between the amount of cold air flowing through the passenger seat side passage 50d passing through the heater core 54 (warm air amount) and the amount passing through the bypass passage 50f (cold air amount) depending on the opening degree. To adjust the temperature of air blown to the front passenger seat.

  The left and right air mix doors 55a and 55b are connected to servo motors 550a and 550b as driving means, and the opening degrees of the air mix doors 55a and 55b are independently adjusted by the servo motors 550a and 550b. Is done.

  The evaporator 53 is a low-pressure side cooling heat exchanger that constitutes a well-known refrigeration cycle together with a compressor, a condenser, a receiver, and a decompressor (not shown). The evaporator 53 cools the air in the duct 50 as the low-pressure refrigerant absorbs the latent heat of vaporization and evaporates from the air flowing in the duct 50. The compressor of the refrigeration cycle is connected to the vehicle engine via an electromagnetic clutch (not shown), and is controlled to stop driving by intermittently controlling the electromagnetic clutch.

  The heater core 54 is a heating heat exchanger that uses hot water (engine cooling water) from the vehicle engine as a heat source. The heater core 54 heats the air that has passed through the evaporator 53.

  Further, a driver seat side face outlet 56a and a passenger seat side face outlet 56b are provided on the air downstream side (most downstream portion) of the heater core 54 in the driver seat side passage 50c and the passenger seat side passage 50d.

  The driver-seat-side face outlet 56a blows air toward the upper body of the driver who sits on the driver's seat 2 from the driver-seat-side passage 50c. Further, the passenger-seat-side face outlet 56b blows air from the passenger-seat-side passage 50d toward the upper body of the passenger seat occupant seated on the passenger seat 3.

  Furthermore, the driver's seat side face outlet 56a is opened and closed at the upstream side of each of the driver's seat side face outlet 56a and the passenger's side face outlet 56b in the driver seat side passage 50c and the passenger seat side passage 50d. An air outlet switching door 56d for opening and closing the air outlet switching door 56c and the passenger seat face air outlet 56b is provided. The air outlet switching doors 56c and 56d are opened and closed by a driver-side servomotor 56e and a passenger-side servomotor 56f as driving means, respectively.

  The driver's seat-side face outlet 56a and the passenger's seat-side face outlet 56b are specifically a center face outlet and a center face outlet located at a position near the center of the instrument panel 7, as shown in FIG. It is divided into side face outlets located near both ends of the instrument panel 7 in the left-right direction.

  Although not shown in FIGS. 1 and 2, in addition to the driver-seat-side face outlet 56a, the driver-seat-side foot outlet and the driver-seat-side defroster are provided at the most downstream portion of the driver-seat-side passage 50c. There is an air outlet. The driver-seat-side foot outlet blows air from the driver-seat-side passage 50c to the lower body of the driver. The driver-seat-side defroster outlet blows air from the driver-seat-side passage 50c to the driver-seat-side region on the inner surface of the windshield.

  In the most downstream part of the passenger seat side passage 50d, in addition to the passenger seat face outlet 56b, a passenger seat foot outlet and a passenger seat defroster outlet are provided. The passenger-side foot outlet blows air from the passenger-seat-side passage 50c to the lower half of the passenger seat passenger. The passenger seat side defroster outlet blows air from the passenger seat side passage 50d to the passenger seat side region of the inner surface of the windshield.

  In the driver seat side passage 50c, air outlet switching doors (not shown) for opening and closing the respective air outlets are provided in the air upstream portions of the driver seat side foot outlet and the driver seat side defroster outlet. The air outlet switching doors on the driver's seat side are driven to open and close in conjunction with the above-described servo motor 56e on the driver's seat side.

  Further, in the passenger seat side passage 50d, air outlet switching doors (not shown) for opening / closing the respective air outlets are provided in the air upstream portions of the passenger seat side foot outlet and the passenger seat side defroster outlet. The air outlet switching doors on the passenger seat side are driven to open and close in conjunction with the above-described servo motor 56f on the passenger seat side.

  The rear seat air conditioning unit 6 includes a duct 60 for blowing air to the rear seat side of the vehicle interior 1. Connected to the most upstream portion in the duct 60 is an inside air introduction duct 60b through which only inside air is introduced from the vehicle interior 1 through the inside air introduction port 60a.

  A centrifugal blower 62 that generates an air flow blown toward the air conditioning zones 1c and 1d in the vehicle interior 1 is provided on the air downstream side of the inside air introduction duct 60b. The centrifugal blower 62 includes a centrifugal impeller and a blower motor 62a that rotates the impeller. In FIG. 2, for simplification of illustration, an axial-flow impeller is illustrated as a centrifugal impeller of the front-seat-side centrifugal blower 52 and the rear-seat-side centrifugal blower 62. Of course, a centrifugal impeller is used as an impeller of both the blowers 52 and 62.

  Further, an evaporator 63 as an air cooling means for cooling the air is provided on the downstream side of the centrifugal blower 62 in the duct 60. A heater core 64 as an air heating means for heating air is provided on the air downstream side of the evaporator 63.

  A partition plate 67 is provided in the duct 60 at a downstream portion of the evaporator 63, and the partition plate 67 allows the air passage in the duct 60 to be divided into two passages on the left and right sides of the vehicle, that is, the rear right passage (rear seat). It is partitioned into a seat driver side passage 60c and a rear left seat passage (rear passenger seat side passage) 60d.

  A bypass passage 60e is formed on the side of the heater core 64 in the rear seat right passage 60c, and a bypass passage 60f is formed on the side of the heater core 64 in the rear seat left passage 60d. The bypass passages 60e and 60f bypass the cool air cooled by the evaporator 63 with respect to the heater core 64, respectively.

  In the rear seat right passage 60c and the rear seat left passage 60d, air mix doors 65a and 65b are provided on the air upstream side of the heater core 64 so as to be independently operable. The ratio of the amount of air passing through the heater core 64 (warm air amount) and the amount passing through the bypass passage 60e (cold air amount) of the cold air flowing through the rear seat right passage 60c, depending on the opening degree of the air mix door 65a on the right rear seat. To adjust the temperature of the air blown to the right side of the rear seat.

  Further, the air mix door 65b on the left side of the rear seat has, depending on the opening degree, an amount passing through the heater core 64 (warm air amount) and an amount passing through the bypass passage 60f (cold air amount) among the cold air passing through the rear seat left passage 60d. To adjust the temperature of the air blown to the left side of the rear seat.

  Servo motors 650a and 650b as driving means are connected to the right and left air mix doors 65a and 65b, respectively. The opening degree of the left and right air mix doors 65a and 65b is determined by the servo motor 650a, By 650b, each is adjusted independently.

  The evaporator 63 is a cooling heat exchanger that is pipe-coupled in parallel to the front seat side evaporator 53 in the well-known refrigeration cycle described above.

  The heater core 64 is a heat exchanger for heating that uses hot water (engine cooling water) from the vehicle engine as a heat source. The heater core 64 is connected in parallel to the heater core 54 on the front seat side in the hot water circuit, and evaporates. The air after passing through the vessel 63 is heated.

  A rear seat right face outlet 66a is provided on the air downstream side (the most downstream portion) of the heater core 64 in the rear seat right passage 60c in the duct 60. The rear seat right face outlet 66a blows air from the rear seat right passage 60c toward the upper body of the passenger (hereinafter referred to as the rear seat right passenger) seated on the right side of the rear seat (that is, the rear seat driver seat side region). .

  In addition, a rear seat left face outlet 66b is provided at the most downstream portion on the downstream side of the heater core 64 in the rear seat left passage 60d in the duct 60. The rear seat left face outlet 66b blows air from the rear seat left passage 60d toward the upper body of the occupant (hereinafter referred to as the rear seat left occupant) seated on the left side of the rear seat (that is, the rear passenger front seat side region). .

  Here, face doors 66c and 66d are respectively provided in the air upstream portions of the left and right rear face outlets 66a and 66b to open and close the left and right rear face outlets 66a and 66b. . The rear door left and right face doors 66c and 66d are opened and closed by servomotors 660c and 660d as driving means.

  Although not shown in FIG. 2, a rear seat right foot outlet is provided in addition to the rear seat right face outlet 66a at the most downstream portion of the rear seat right passage 60c. This rear seat right foot outlet blows air from the rear seat right passage 60c toward the lower half of the rear seat right passenger.

  Similarly, a rear seat left foot outlet is provided in the most downstream portion of the rear seat left passage 60d in addition to the rear seat left face outlet 66b. The rear seat left foot outlet blows air from the rear seat left passage 60d toward the lower half of the rear left passenger.

  Foot doors are respectively provided in the air upstream portions of the left and right foot outlets of the rear seat. The left and right foot doors of the rear seat are driven to open and close by the servo motors 660c and 660d.

  On the input side of the air conditioner ECU 8 that is an air conditioning control means (air conditioning control device), there are an outside air temperature sensor 81, a vehicle engine coolant temperature sensor 82, solar radiation sensors 83a and 83b, and front and rear seat side evaporator temperatures. Sensors 86 and 87 are connected.

  The outside air temperature sensor 81 detects the outside air temperature outside the passenger compartment, and outputs an outside air temperature signal Tam corresponding to the detected temperature to the air conditioner ECU 8. The cooling water temperature sensor 82 detects the temperature of the cooling water (that is, hot water) of the vehicle engine, and outputs a cooling water temperature signal Tw corresponding to the detected temperature to the air conditioner ECU 8.

  As shown in FIG. 1, the solar radiation sensors 83 a and 83 b are disposed at a substantially central portion in the vehicle left-right direction on the upper surface portion of the instrument panel 7 (inside portion of the vehicle front window). The solar radiation sensor 83a is inclined to the right of the vehicle, detects the solar radiation amount incident on the driver's seat side region, and outputs a solar radiation amount signal TsDr corresponding to the detected solar radiation amount to the air conditioner ECU 8. . On the other hand, the solar radiation sensor 83b is inclined toward the left side of the vehicle, detects the solar radiation amount incident on the passenger seat side region, and outputs a solar radiation amount signal TsPa corresponding to the detected solar radiation amount to the air conditioner ECU 8. To do.

  The front seat side inside air temperature sensor 84 detects the air temperature in the air conditioning zones 1a, 1b (front seat side air conditioning region) in the passenger compartment, and outputs an inside air temperature signal TrFr corresponding to the detected temperature to the air conditioner ECU 8. The rear seat side inside air temperature sensor 85 detects the air temperature in the air conditioning zones 1c and 1d (rear seat side air conditioning regions) in the passenger compartment, and outputs an inside air temperature signal TrRr corresponding to the detected temperature to the air conditioner ECU 8.

  Here, as the inside air temperature sensors 84 and 85, thermistors that detect the air temperature by contacting the air are used.

  The front seat evaporator temperature sensor 86 detects the temperature of the air blown from the front seat evaporator 53 and outputs an evaporator blow temperature signal TeFr corresponding to the detected temperature to the air conditioner ECU 8. The temperature sensor 87 detects the blown air temperature of the rear seat side evaporator 63 and outputs an evaporator blown temperature signal TeRr corresponding to the detected temperature to the air conditioner ECU 8.

  Further, four temperature setting switches 9, 10, 11, 12 that can be operated by a passenger are connected to the input side of the air conditioner ECU 8. The set temperature signals TsetFrDr, TsetFrPa, TsetRrDr, and TsetRrPa set by the occupant corresponding to each of the four air conditioning zones 1a, 1b, 1c, and 1d in the passenger compartment from the four temperature setting switches 9 to 12 are sent to the air conditioner ECU 8. Is output. In the vicinity of each of the temperature setting switches 9 to 12, there are provided displays 9a, 10a, 11a, and 12a as setting temperature display means for displaying setting contents such as a setting temperature.

  Further, an infrared temperature (IR) sensor 70 as a non-contact temperature sensor is connected to the input side of the air conditioner ECU 8. In the present embodiment, the infrared temperature (IR) sensor 70 is disposed in the vicinity of the center of the vehicle in the left-right direction (the upper portion of the solar radiation sensor 83) at the front portion of the ceiling in the vehicle interior.

  A seating sensor 88a and a seating sensor 88b are connected to the input side of the air conditioner ECU 8. The seating sensors 88a and 88b are well-known sensors for individually determining whether or not an occupant is seated in the rear seat right seats 4a and 4b. For example, the seating sensor 88a is a normally open type switch that is embedded in a seat cushion (seat portion) constituting the rear seat right seat 4a and closes (ie, turns on) when a load is applied to the seat cushion from above. Is used. The seat cushion is a member that supports the waist when an occupant is seated. Similarly, as the seating sensor 88b, a normally open type that is embedded in a seat cushion (sitting portion) constituting the rear seat right seat 4b and closes (that is, turns on) when a load is applied to the seat cushion from above. A switch is used.

  The air conditioner ECU 8 is a well-known unit having an analog / digital converter, a microcomputer, etc., and includes a solar radiation sensor 83, temperature sensors 81, 82, 84, 85, 86, 87, and a seating sensor 88a. , 88b, and the temperature setting switches 9, 10, 11, and 12 are respectively configured to be analog / digital converted by an analog / digital converter and input to a microcomputer.

  The microcomputer is a well-known computer composed of a memory such as a ROM and a RAM, a CPU (Central Computing Unit), and the like, and is supplied with power from a battery (not shown) when an ignition switch is turned on.

  The infrared temperature sensor 70 is configured using a thermopile detection element (hereinafter, abbreviated as “detection element”) in which the electromotive force increases or decreases in response to an increase or decrease in the amount of infrared rays incident from the temperature detection object. That is, the infrared temperature sensor 70 electrically detects the temperature change of the temperature detection object as the electromotive force change of the detection element.

  The infrared temperature sensor 70 includes a driver seat side detection unit 71 and a passenger seat side detection unit 72. Each of the detection units 71 and 72 includes a plurality of the detection elements, and the plurality of detection elements are arranged in a predetermined shape.

  FIG. 3 exemplifies a specific configuration of the infrared temperature sensor 70. The driver seat side detection unit 71 emits the temperature detection objects in the air conditioning zones 1a and 1c before and after the driver seat side (the vehicle right side). Infrared light is incident through the driver seat side lens 73. In addition, infrared rays emitted from the temperature detection objects in the front and rear air conditioning zones 1 b and 1 d on the passenger seat side are incident on the passenger seat side detection unit 72 through the passenger seat side lens 74.

  Here, since the infrared temperature sensor 70 is disposed near the center of the vehicle interior ceiling in the vehicle left-right direction as described above, the driver seat side detection unit 71, the driver seat side lens 73, and the passenger seat side detection are performed. The part 72 and the passenger seat side lens 74 are respectively disposed so as to be inclined obliquely outward and to the left and right by a predetermined angle θ1 with respect to the vehicle longitudinal direction line A in the center of the vehicle.

  Accordingly, in the illustrated example of FIG. 3, the infrared rays from the rear of the vehicle with respect to the driver seat side detection unit 71 and the passenger seat side detection unit 72 are at a predetermined angle θ2 (θ2 = 2 × θ1), for example, about 85 °. It is incident over a range.

  Each of the lenses 73 and 74 is a single lens made of a material having a high infrared transmittance.

  Each of the predetermined number of detection elements constituting the driver seat side detection unit 71 and the passenger seat side detection unit 72 absorbs infrared rays incident through the lenses 73 and 74 and converts them into heat as is well known, and A thermocouple unit that generates an electromotive force according to the amount of heat generated by the infrared absorption film.

  In FIG. 3, an electronic circuit 75 is a circuit unit to which the electromotive force of each detection element of the driver seat side detection unit 71 and the passenger seat side detection unit 72 is input, and is connected to the input side of the air conditioner ECU 8 by a connector 76.

  Next, a specific arrangement form of the detection elements of both detection units 71 and 72 in the infrared temperature sensor 70, in other words, a specific shape of the infrared light reception unit of both detection units 71 and 72 will be described.

  In the lower left side indicated by reference symbol A in FIG. 4, the driver's seat 2 side in the vehicle compartment is shown from the front window glass side of the vehicle, and among the detectors 71 in the infrared temperature sensor 70, the infrared receiver on the driver's seat 2 side. The specific example of the shape of 70a is expanded and illustrated.

  The infrared light receiving unit 70a includes detection elements 700 to 703, and the temperature detection object of the detection elements 700 and 701 is the side window glass SG on the side of the driver seat 2, and therefore the detection elements 700 and 701 are moved in the vertical direction. By the side-by-side combination shape, the driver seat 2 side window glass SG (temperature detection object) is formed into a shape corresponding to the shape.

  Here, the infrared light receiving portion is a generic term for the thermocouple portion of the detection elements 700 and 701 and the infrared absorption film disposed on the thermocouple portion. The same applies to detection elements other than the reference numerals “700, 701” described below.

  The temperature detection object of the detection element 702 is the skin of the driver's face, and the detection element 702 is in an area where only the skin is exposed in the driver's face (that is, an area excluding glasses, eyelids, hair, etc.). It has a corresponding shape. In FIG. 4, the specific shape of the detection element 702 is omitted to make it square. Moreover, the temperature detection object of the detection element 703 is a clothing part of the driver's upper body, and the detection element 703 has a shape corresponding to the driver's clothing part.

  On the other hand, the upper right side indicated by reference sign B in FIG. 4 shows the right side of the rear seat 4 in the vehicle compartment from the front window glass side of the vehicle, and the right side of the rear seat 4 in the detection unit 71 in the infrared temperature sensor 70. An example of the shape of the infrared light receiving part 70b is enlarged. The infrared light receiving unit 70b includes detection elements 711 to 716. The temperature detection objects of the detection elements 711 and 712 are interior members on the right side of the rear seat 4, and the detection elements 711 and 712 are arranged on the left and right, respectively, and the interior members on the right side of the rear seat 4 (specifically, the rear window) The shape according to the interior member of the ceiling above the glass 701).

  Further, the temperature detection object of the detection elements 713 to 716 is a clothing part of the upper right body of the right occupant of the rear seat 4, and the detection elements 713 to 716 are arranged on the clothing part of the right occupant of the rear seat 4 by arranging them in the front, rear, left and right. It has a shape that matches. And the temperature detection object of the detection element 716 is the skin of the face part of the right occupant of the rear seat 4, and the detection element 716 corresponds to the area where only the skin is exposed in the face part of the right occupant of the rear seat 4. It has a shape. In FIG. 4, the specific shape of the detection element 716 is omitted to make it quadrangular.

  Similarly to the driver seat side detection unit 71, the passenger seat side detection unit 72 includes detection elements 700 to 703 and 711 to 716 (not shown), and the detection elements 700 to 703 of the passenger seat side detection unit 72. , 711 to 716 are arranged symmetrically with respect to the detection elements 700 to 703 and 711 to 716 of the driver seat side detection unit 71.

  That is, in the passenger seat side detection unit 72, the detection elements 700 and 701 are arranged one above the other so as to have a shape corresponding to the shape of the passenger seat side side window glass (temperature detection object). The detection element 702 has a shape corresponding to an area where only the skin is exposed in the face part of the passenger (passenger on the left side of the front seat). The detection element 703 has a shape corresponding to the clothing part of the passenger.

  The detection elements 711 and 712 are arranged side by side and have a shape corresponding to the left interior member of the rear seat 4. The detection elements 713 to 716 are arranged side by side in the front-rear and left-right directions so as to correspond to the clothing part of the left occupant of the rear seat 4. The detection element 716 has a shape corresponding to an area where only the skin is exposed in the face part of the left occupant of the rear seat 4.

  Next, the operation of the first embodiment in the above configuration will be described with reference to FIGS.

  When the vehicle ignition switch is turned on and power is supplied, the air conditioner ECU 8 starts a control program (computer program) stored in the memory, and executes air conditioning control processing according to the flowchart shown in FIG. In the following description, the air conditioning control process is divided into a front seat air conditioning control process and a rear seat air conditioning control process with reference to FIG. FIG. 5 shows an overview of each air conditioning control process.

  First, the front seat air conditioning control process will be described. First, in step S121, the driver seat side set temperature signal TsetFrDr and the passenger seat side set temperature signal TsetFrPa are read from the temperature setting switches 9 and 10 on the left and right of the front seat.

  Next, various sensor detection signals are read in step S122. That is, the outside air temperature signal Tam, the solar radiation amount signals TsDr and TsPa, and the front seat side inside air temperature signal TrFr are read from the outside air temperature sensor 81, the right side solar radiation sensor 83a, the left side solar radiation sensor 83b, and the front seat side inside air temperature sensor 84, respectively. Further, detection signals (details will be described later) of the driver seat side detection unit 71 and the passenger seat side detection unit 72 of the infrared temperature sensor 70 are read.

  Next, in step S123, the target blowing temperature TAOFrDr of the front seat driver seat side air conditioning zone 1a and the target blowing temperature TAOFrPa of the front seat passenger seat side air conditioning zone 1b are calculated. Here, the target blowing temperatures TAOFrDr and TAOFrPa are necessary for maintaining the temperatures of the air-conditioning zones 1a and 1b at the set temperatures TsetFrDr and TAOFrPa, respectively, regardless of changes in the vehicle environmental conditions (air-conditioning heat load conditions). The target temperature.

  First, the front driver's seat side target blowing temperature TAOFrDr is calculated based on the following mathematical formula (1) stored in advance in the memory.

TAOFrDr = KsetFrDr × TsetFrDr
-Kir * FrDrTir-KrFr * TrFr
−KsFr × TsDr−Kam × Tam + CFrDr (Formula 1)
In Equation 1, TsetFrDr is the driver seat side set temperature set by the driver seat side temperature setting switch 10.

  FrDrTir is the surface temperature of the driver on the right side of the front seat, and this FrDrTir is determined by the detection temperature of the infrared light receiving unit 70b in the driver seat side detection unit 71 of the infrared temperature sensor 70. Specifically, multiplication values Ta2 × k1 and Ta3 × k2 are calculated by multiplying the detection temperatures Ta2 and Ta3 of the detection elements 702 and 703 by coefficients k1 and k2, respectively, and these multiplication values Ta2 × k1 and Ta3 are calculated. The average value of xk2 is calculated as the surface temperature FrDrTir {FrDrTir = (Ta2 * k1 + Ta3 * k2) / 2}.

  Next, TrFr is the front seat side inside air temperature detected by the front seat side inside air temperature sensor 84. TsDr is the amount of solar radiation to the front driver's seat area. Tam is the outside air temperature detected by the outside air temperature sensor 81.

  In Equation 1, KsetFrDr, Kir, KrFr, KsFr, and Kam are control gains (coefficients), and CFrDr is a constant.

  In step S1233, the front passenger's seat side target blowing temperature TAOFrPa is calculated based on the following mathematical formula (2).

TAOFrPa = KsetFrPa × TsetFrPa
−Kir × FrPaTir−KrFr × TrFr
−KsFr × TsPa−Kam × Tam + CFrPa (Formula 2)
In Formula 2, TsetFrPa is the passenger seat side set temperature set by the passenger seat side temperature setting switch 9.

  FrPaTir is the surface temperature of the passenger on the left side of the front seat, and this FrPaTir is determined by the detection temperature of the detection element 70 a in the passenger seat side detection unit 72 of the infrared temperature sensor 70. Specifically, multiplication values Ta02 × k1 and Ta03 × k2 obtained by multiplying the detection temperatures Ta02 and Ta03 of the detection elements 702 and 703 by coefficients k1 and k2, respectively, are calculated, and the average of the multiplication values Ta02 × k1 and Ta03 × k2 is calculated. The value is calculated as the surface temperature FrPaTir {FrDrTir = (Ta02 × k1 + Ta03 × k2) / 2}.

  Next, TrFr is the same air temperature at the front seat as in Equation 1. Further, TsPa is the amount of solar radiation to the front seat passenger side area. Tam is the same outside air temperature as Formula 1.

  In Equation 2, KsetFrPa, Kir, KrFr, KsFr, and Kam are control gains (coefficients), and CFrPa is a constant.

  Accordingly, the blower voltage to be applied to the front seat side blower motor 52a is determined based on the average value of TAOFrPa and TAOFrDr (hereinafter referred to as the front seat target blowing temperature average value TAOflav). The rotational speed of the front seat side blower motor 52a is changed by this blower voltage, and thereby the air volume of the front seat side blower 52 can be controlled.

  That is, as shown in FIG. 6, when the front target air blowing temperature average value TAOfrav is in the predetermined low temperature region and high temperature region, the blower voltage is increased to increase the air volume, and the front air blowing target temperature When the average value TAOflav is in the intermediate temperature region between the low temperature region and the high temperature region, the blower voltage is determined so as to lower the blower voltage.

  Next, in step S124 of FIG. 5, the inside / outside air mode is determined based on the above-described front target air outlet temperature average value TAOflav. Specifically, as shown in FIG. 6, when the front seat target blowing temperature average value TAOfrav is in a predetermined low temperature region, the inside / outside air mode is set to the inside air circulation mode of 100% inside air, and the front seat target blowing temperature average is set. When the value TAOflav is in the predetermined high temperature side region, the inside / outside air mode is set to the outside air introduction mode with 100% outside air. When the front target air outlet temperature average value TAOfrav is in an intermediate temperature region between the low temperature side region and the high temperature side region, the inside / outside air mode is a mode in which both the inside air and the outside air are introduced simultaneously. To do.

  Next, in step S125, the blowing mode on the front seat driver seat side is determined based on TAOFrDr, and the blowing mode on the front seat passenger seat side is determined based on TAOFrPa. Specifically, as shown in FIG. 8, as TAOFrDr rises from the low temperature side, the blowing mode of the air-conditioning zone 1a on the front seat driver's seat side is changed from the face (FACE) mode to the bi-level (B / L) mode to the foot ( FOOT) mode is automatically switched sequentially.

  Similarly, as TAOFrPa rises from the low temperature side, the blowing mode of the air-conditioning zone 1b on the front passenger's seat is automatically sequentially changed from the face (FACE) mode to the bi-level (B / L) mode to the foot (FOOT) mode. Switch.

  The face mode is a mode in which conditioned air is blown from the face air outlet to the occupant upper body, and the foot mode is a mode in which conditioned air is blown from the foot air outlet to the occupant lower body. The bi-level mode is a mode in which conditioned air is blown from the face air outlet and the foot air outlet to the occupant upper body and the occupant lower body, respectively.

  Next, in Step S126, the target opening degree SWFrDr of the air mixing door 55a on the front seat driver's seat side is calculated by the following formula 3, and the target opening degree SWFrPa of the air mixing door 55b on the front seat passenger seat side is calculated as follows. Calculated using Equation 4.

SWFrDr = {(TAOFrDr−TeFr) / (Tw−TeFr)} × 100 (%) (Formula 3)
SWFrPa = {(TAOFrPa−TeFr) / (Tw−TeFr)} × 100 (%) (Formula 4)
In Formulas 3 and 4, TeFr is the front-seat evaporator outlet temperature detected by the front-seat evaporator temperature sensor 86, and Tw is the cooling water (hot water) temperature detected by the cooling water temperature sensor 82. SWFrDr and SWFrPa = 0% are maximum cooling positions, and the entire amount of air (cold air) after passing through the evaporator 53 flows through the bypass passages 50e and 50f in the driver seat side passage 50c and the passenger seat side passage 50d. SWFrDr and SWFrPa = 100% are maximum heating positions, and the entire amount of air (cold air) after passing through the evaporator 53 flows into the heater core 54 and is heated in the driver seat side passage 50c and the passenger seat side passage 50d.

  In step S128, the control signals indicating the inside / outside air switching mode, the blowing mode, the blower voltage, the target opening degree SWFrDr and the SWFrPa determined as described above are set at the servo motors 51a, 550a, 550b, 56e, 56f, and the front seat side. It outputs to the blower motor 52a etc., and controls operation | movement of the air blower 52, the inside / outside air switching door 51, the blower outlet switching doors 56c and 56d, the air mix doors 55a and 55b, etc.

  Thereafter, in step S128, when the predetermined time t has elapsed, the process returns to step S121, and the above-described air conditioning control process (steps S121 to S129) is repeated. By repeating such calculation and processing, air conditioning in the front seat air conditioning zones 1a and 1b is automatically controlled.

  Next, the rear seat air conditioning control process will be described. In the air conditioning control process on the rear seat side, the description of the common part with the front seat side is simplified. First, in step 121, set temperature signals TsetRrDr and TsetRrPa are read from the temperature setting switches 11 and 12 on the left and right sides of the rear seat.

  Next, in step S122, various sensor signals are read as in the case of the front seat side. Next, in step S123, the target blowing temperature TAORrDr of the rear right seat (driver's seat) air conditioning zone 1c and the target blowing temperature TAORrPa of the rear seat left (passenger seat) air conditioning zone 1d are calculated. Here, the target blowing temperatures TAORrDr and TAORrPa are necessary for maintaining the temperatures of the air-conditioning zones 1c and 1d at the set temperatures TsetRrDr and TsetRrPa, respectively, regardless of changes in the vehicle environmental conditions (air-conditioning heat load conditions). The target temperature.

  FIG. 9 and FIG. 10 show specific control processing for calculating the target blowing temperatures TAORrDr and TAORrPa on the rear seat side and calculating the blower voltage (air flow rate). First, in step S100, Based on the average value of the detection temperatures Ta13 to Ta17 (detected surface temperature on the rear seat Dr occupant side) of the detection elements 713 to 717 in the driver seat side detection unit 71 of the infrared temperature sensor 70, has the passenger entered the rear right seat 4c? Determine whether or not.

  Specifically, the [average value of the current detection temperatures Ta13 to Ta17] is a predetermined temperature (for example, 3 ° C.) as compared to the [average value of the detection temperatures Ta13 to Ta17 before a predetermined time (for example, one second)]. ) Determine whether or not it has changed.

That is,
[Average value of current detection temperatures Ta13 to Ta17] <
[Average value of detected temperatures Ta13 to Ta17 before a predetermined time (for example, one second)]-[predetermined temperature]
Alternatively, [average value of current detection temperatures Ta13 to Ta17]>
[Average value of detected temperatures Ta13 to Ta17 before a predetermined time (for example, one second)] + [predetermined temperature]
When the relationship is established, it is determined YES in S100 that an occupant has entered the rear right seat 4c.

  Accordingly, the surface temperature TirRrDr on the right side of the rear seat (rear seat Dr side) is calculated based on Expression (5).

TirRrDr = interior temperature × 0.3 + glass temperature × 0.2
+ Occupant clothing temperature x 0.14 + Occupant skin temperature x 0.36 (Formula 5)
In Equation 5, the interior temperature indicates the surface temperature of the interior member on the right side of the rear seat, and is an average value of the detection temperatures Ta11 and Ta12 of the detection elements 711 and 712 of the infrared light receiving unit 70b of the driver seat side detection unit 71. There is {interior temperature = (Ta11 + Ta12) / 2}. The glass temperature indicates the surface temperature of the glass on the driver's seat side, and is a temperature that changes under the influence of the outside air and the inside air. The glass temperature includes the detection elements 700 and 701 of the driver's seat side detection unit 71. The average value of the detected temperatures Ta00 and Ta01 is used {glass temperature = (Ta00 + Ta01) / 2}.

  The occupant clothing temperature indicates the surface temperature of the clothing part of the occupant on the right side of the rear seat, and is a temperature that changes due to the effects of solar radiation and the inside air. As the occupant clothing temperature, an average value of the detected temperatures Ta13 to Ta16 of the detection elements 713 to 716 of the driver seat side detection unit 71 is used {occupant clothing temperature = (Ta13 +... Ta16) / 4}.

  The occupant skin temperature indicates the surface temperature of the skin temperature of the occupant on the right side of the rear seat, and is used to detect the sensation of the occupant. The detected temperature Ta17 of the detection element 717 of the driver seat side detection unit 71 is used as the occupant skin temperature.

  Accordingly, the rear right seat surface temperature (driver seat side) target outlet temperature TAORrDr is calculated based on Formula 6 stored in the memory using the rear seat right surface temperature TirRrDr.

TAORrDr = 7 × TestRrDr-5 × TirRrDr-40
... (Formula 6)
In Equation 6, TsetRrDr is the rear seat right side set temperature set by the rear seat right side temperature setting switch 11. In Equation 6, “7” and “5” are control gains (coefficients), and “−40” is a constant.

  Next, the surface temperature TirRrPa on the left side of the rear seat (passenger seat side) is calculated based on Expression (7).

TirRrPa = interior temperature × 0.3 + glass temperature × 0.2
+ Occupant clothing temperature x 0.14 + Occupant skin temperature x 0.36 (Expression 7)
In Equation 7, the interior temperature is an average value of the detection temperatures Ta12 and Ta13 of the detection elements 711 and 712 of the infrared light receiving unit 70b of the passenger seat side detection unit 72. The glass temperature is an average value of the detection temperatures Ta00 and Ta01 of the detection elements 700 and 701 of the passenger seat side detection unit 72. The passenger clothing temperature is an average value of the detection temperatures Ta13 to Ta16 of the detection elements 713 to 716 of the passenger seat side detection unit 71. The occupant skin temperature is a detection temperature Ta17 of the detection element 717 of the passenger seat side detection unit 71.

  Next, using the rear seat left surface temperature TirRrPa, the rear seat left side (passenger seat side) target blowing temperature TAORrPa is calculated based on Formula 8 stored in the memory.

TAORrPa = 7 × TestRrPa-5 × TirPa-40
... (Formula 8)
In Equation 8, TsetRrPa is the rear seat left side set temperature set by the rear seat left side temperature setting switch 12. In Equation 8, “7” and “5” are control gains (coefficients), and “−40” is a constant.

  In the next step S102, it is determined whether or not an occupant is seated in advance in the rear seat left side (passenger seat side) seat 4d based on the output signal Zb of the rear seat left side seating sensor 88b. Here, if the normally open switch constituting the rear seat left side seating sensor 88b is turned on, it is determined that the passenger is seated in the rear seat left side seat 4d, YES.

Accordingly, the process proceeds to step S 103, based on TAORrPa, determines the blower voltage applied to the rear seat blower motor 62a. The rear seat blower voltage is determined in the same manner as the front seat blower voltage.

On the other hand, if the normally open switch constituting the rear seat left seat sensor 88b is turned off in step S102, it is determined that the occupant is not seated in the rear seat left seat 4d. Accordingly, the process proceeds to step S 104, based on TAORrDr, determines the blower voltage applied to the rear seat blower motor 62a. The rear seat side blower voltage is determined in the same manner as the front seat side blower voltage.

  In the next step S100a (see FIG. 10), the average value of the detected temperatures Ta13 to Ta17 (detected surface temperature on the rear seat Pa occupant side) of the detection elements 713 to 717 in the passenger seat side detection unit 72 of the infrared temperature sensor 70. Based on the above, it is determined whether or not an occupant has entered the rear left seat 4d side. The determination as to whether or not an occupant has boarded the rear left seat 4d is performed in the same manner as the above-described boarding determination process (step S100).

  If it is determined YES in S100a that an occupant has entered the rear left seat 4d side, the process proceeds to step 101 in FIG. 10, and the rear seat right side (rear seat Dr side) based on Equation (5). And the rear seat right side (driver's seat side) target blowing temperature TAORrDr is calculated based on the above-described equation 6 stored in the memory using the calculated rear seat right surface temperature TirRrDr. To do.

  In addition to this, the rear seat left side (passenger side) surface temperature TirRrPa is calculated based on the above-described equation (7), and the rear seat left target temperature is calculated using the calculated rear seat left surface temperature TirRrPa. TAORrPa is calculated based on Equation 8 described above stored in the memory.

  In the next step S102a, based on the output signal Za of the rear seat right seating sensor 88a, it is determined whether or not an occupant is seated in advance in the rear seat right side (driver seat side) seat 4c. Here, if the normally open switch constituting the rear seat right seating sensor 88a is turned on, it is determined that the passenger is seated in the rear seat right seat 4c, YES.

Accordingly, the process proceeds to step S 103a, based on TAORrDr, determines the blower voltage applied to the rear seat blower motor 62a. The rear seat blower voltage is determined in the same manner as the front seat blower voltage.

On the other hand, in step S102a, the normally open switches constituting the rear right side seating sensor 88 a is turned off, as an occupant in the rear seat right-side seat 4 c is not seated, and NO. Accordingly, the process proceeds to step S 104, based on TAORrPa, determines the blower voltage applied to the rear seat blower motor 62a. The rear seat side blower voltage is determined in the same manner as the front seat side blower voltage.

  Next, the process proceeds to step S125 in FIG. 5, and the right and left blowing modes for the rear seat are determined based on the rear seat right target blowing temperature TAORrDr and the rear seat left target blowing temperature TAORrPa, respectively. The rear seat blowing mode determination may be performed in the same manner as the front seat blowing mode determination. Note that the determination of the inside / outside air mode in step S124 in FIG. 5 is a control process only on the front seat side, and thus is not performed in the control process on the rear seat side.

  Next, in step S125, the blower voltage to be applied to the rear seat side blower motor 62a is determined based on the average value of the target air outlet temperatures TAORrDr and TAORrPa on the left and right sides of the rear seat, that is, the target air outlet temperature average value TAOrrav for the rear seat. To do. The rear seat side blower voltage is determined in the same manner as the front seat side blower voltage.

  Next, in step S126, the target opening degree SWRrDr of the right air mixing door 65a on the right rear seat is calculated by the following equation 9, and the target opening degree SWRrPa of the left air mixing door 65b is calculated by the following equation 10. To do.

SWRrDr = {(TAORrDr−TeRr) / (Tw−TeRr)} × 100 (%) (Equation 9)
SWRrPa = {(TAORrPa−TeRr) / (Tw−TeRr)} × 100 (%) (Equation 10)
In Equations 9 and 10, TeRr is the rear-seat evaporator outlet temperature detected by the rear-seat evaporator temperature sensor 87, and Tw is the cooling water (hot water) temperature detected by the cooling water temperature sensor 82.

  SWRrDr and SWRrPa = 0% are maximum cooling positions, and the entire amount of air (cold air) after passing through the rear seat side evaporator 63 flows through the bypass passages 60e and 60f in the rear seat right passage 60c and the rear seat left passage 60d. SWRrDr and SWRrPa = 100% are maximum heating positions, and the entire amount of air (cold air) after passing through the rear seat side evaporator 53 flows into the heater core 64 in the rear seat right passage 60c and the rear seat left passage 60d and heats it. Is done.

  In step S128, the servo motors 650a, 650b, 660c, the control signals indicating the rear seat side blowing mode, the rear seat side blower voltage, and the rear seat side air mix door target opening SWRrDr and SWRrPa determined as described above are set. It outputs to 660d, blower motor 62a, etc., and controls operation of rear seat side blower 62, rear seat side outlet switching doors 66c and 66d, rear seat side air mix doors 65a and 65b, etc.

Thereafter, in step S128, when the predetermined time t has elapsed, the process returns to step S121, and the above-described air conditioning control process (steps S121 to S129) is repeated. By repeating such calculation and processing, the air conditioning of the rear seat air conditioning zones 1c and 1d is automatically controlled.
Next, the effect of this embodiment is demonstrated.

  That is, in the rear seat air conditioning unit 6 of the present embodiment, the blower 62 that blows air toward the air conditioning zones 1c and 1d corresponding to the rear right seat 4c and the rear left seat 4d arranged on the left and right in the vehicle interior; Air mix doors 65a and 65b that independently adjust the temperature of air blown toward the air conditioning zones 1c and 1d, and the surface temperatures of the left and right passengers seated in the rear right seat 4c and the rear left seat 4d are independent. And a non-contact temperature sensor 70 having detection units 71 and 72 for non-contact detection, and an air conditioner EUC8.

  Here, the air conditioner EUC8 controls the opening degree of the air mix doors 65a and 65b independently based on the surface temperatures of the left and right occupants seated in the seats 4c and 4d. Further, when it is determined that the occupant has entered at least one of the seats 4c and 4d, and the air conditioner EUC8 determines that the occupant has been previously seated in the other seat, the air conditioner EUC8 is previously seated in the other seat. Based on the occupant's surface temperature, the air volume of the blower 62 is controlled.

  Therefore, when an occupant gets into one of the seats, the temperature of the air blown into one of the air conditioning zones is adjusted based on the surface temperature of the occupant who has entered the seat, giving the passenger a comfortable feeling be able to.

  On the other hand, when an occupant is seated in the other seat in advance, the air volume of the blower 62 is controlled based on the surface temperature of the occupant seated in the other seat in advance. The amount of air to be blown is controlled based on the surface temperature of an occupant seated in advance on the other seat. Therefore, the amount of air blown to the other air-conditioning zone is not affected by the occupant getting into one of the seats, and it is possible to suppress discomfort to the occupant who was previously seated in the other seat.

  In the above-described first embodiment, as the seating sensors 88a and 88b, the example using the normally open type switch that closes based on the load applied from the occupant when seated on the seat cushion is shown, but instead, an infrared temperature sensor You may determine using the detection temperature Ta13-Ta17 of the detection elements 713-717 among 70 detection parts 71 (detection part 72). For example, when the average value of the detected temperatures Ta13 to Ta17 changes, it is determined that an occupant is seated on the seat cushion.

  In the first embodiment described above, in step S100 of FIG. 9, an example of determining whether or not an occupant has entered the rear right seat 4c based on the temperature detected by the detection unit 71 of the infrared temperature sensor 70 is determined. However, instead of this, when the rear right door is closed as in step 100a of FIG. 10, it may be determined that the occupant has entered the rear right seat 4c.

  Specifically, a switch that is turned on and off in accordance with the opening and closing of the rear right door is employed, and when the output signal of this switch changes from a signal indicating the door open state to a signal indicating the door closed state, the air conditioner ECU 8 Determines that the rear right door (rear Dr side door) has been closed by the passenger, that is, the passenger has entered the rear right seat 4c.

  Further, the determination as to whether or not an occupant has entered the rear left seat 4d is not limited to the case where the detection temperature of the detection unit 71 of the infrared temperature sensor 70 is used, but as shown in step 100b of FIG. When the side door) is closed, it may be determined that an occupant has entered the rear right seat 4c.

  FIGS. 11 and 12 are control flowcharts used in place of FIGS. 9 and 10. In FIGS. 11 and 12, steps having the same reference numerals as those in FIGS. 9 and 10 indicate the same processing. .

  Further, with regard to the determination of whether or not an occupant has entered the rear right seat 4c, a sensor that detects whether or not the seat belt of the rear right seat 4c has been set is used, and the seat belt is determined based on the output of this sensor. When it is determined that the occupant has been set, it may be determined that an occupant has entered the rear right seat 4c. The determination as to whether or not an occupant has entered the rear left seat 4d may also be made based on whether or not the seat belt is set.

  Further, when the occupant carries the wireless communication terminal, an in-vehicle wireless device that detects the reception intensity of the radio wave transmitted from the wireless communication terminal is installed on the rear right seat 4c side, and is detected by this in-vehicle wireless device. If the received reception intensity becomes a certain value or more, it may be determined that the occupant carrying the wireless communication terminal has entered the rear right seat 4c. Similarly, when an in-vehicle wireless device that detects the reception intensity of a radio wave transmitted from a wireless communication terminal is installed on the rear left seat 4d side and the reception intensity detected by the in-vehicle wireless device exceeds a certain value, wireless communication It may be determined that the passenger carrying the terminal has entered the rear left seat 4d side.

(Second Embodiment)
In the first embodiment described above, when an occupant has entered the rear right seat 4c side (the rear left seat 4d side), immediately after that, the surface temperature of the occupant is influenced by the environment outside the passenger compartment. However, the air flow rate of the centrifugal blower 62 is controlled based on the rear left target blowing temperature TAORrPa. When time elapses, the surface temperature of the occupant who has entered and the surface temperature of the occupant who has been seated in advance are approximated and stabilized by the air conditioning operation of the vehicle air conditioner.

  For this reason, in this 2nd Embodiment, when predetermined time passes, the ventilation volume of the centrifugal air blower 62 is controlled using TAORrPa and TAORrDr. In this embodiment, the control flowcharts of FIGS. 13 and 14 are employed instead of the control flowcharts of FIGS. 9 and 10. Accordingly, the air conditioner ECU 8 performs TAORrPa and TAORrDr calculation processing and blower voltage calculation processing in accordance with the control flowcharts of FIGS. 13 and 14.

  13 and 14, the same reference numerals as those in FIGS. 9 and 10 indicate the same processing or substantially the same processing.

Further, in the present embodiment, as shown in FIG. 15, the rear seat right face outlet 66a.
Are provided with two wind direction plates 661a installed so as to be swingable by an angle θ in the left-right direction, and the two wind direction plates 661a adjust the direction of the air flow blown out from the face outlet 66a. The two wind direction plates 661a are connected to a servo motor 662a as a driving means.

  On the other hand, the rear seat left face outlet 66b is provided with two wind direction plates 661b installed so as to be swingable by an angle θ in the left-right direction, and the two wind direction plates 661b are blown out from the face outlet 66b. Adjust the direction of air flow. And the servo motor 662b as a drive means is connected with the two wind direction plates 661b. The servo motors 662a and 662b are controlled by the air conditioner ECU 8.

  Next, the operation of this embodiment will be described with reference to FIGS. In the present embodiment, the air conditioner ECU 8 executes the computer program according to the control flowcharts shown in FIGS. 13 and 14.

  First, in step S100, when the average value of the detection temperatures Ta13 to Ta17 of the detection elements 713 to 717 of the driver seat side detection unit 71 changes by a predetermined temperature (for example, 3 ° C.) or more, an occupant gets into the rear right seat 4c. As YES.

  Then, it transfers to step S101 and performs the calculation process of target blowing temperature TAORrDr, TAORrPa. In connection with this, it transfers to step S105 and it is determined whether more than predetermined time (for example, 5 minutes) passed since it determined as YES at step S100.

And before determining that more than a predetermined time has elapsed since the determination of YES in step S100, the determination of NO is made in step S105. Accordingly, the process proceeds to step S102, if the passenger in the rear seat left seat 4d is judged YES as seated in advance, the process proceeds to step S 103, based on TAORrPa, rear seat blower motor The blower voltage applied to 62a is determined. The rear seat side blower voltage is determined in the same manner as the front seat side blower voltage as in the first embodiment.

  In this case, the servo motors 662a and 662b are controlled to direct the two wind direction plates 661a to the rear seat right air conditioning zone 4c and to direct the two wind direction plates 661b to the rear seat right air conditioning zone 4d. Along with this, air is blown out from the rear seat right face air outlet 66a toward the rear seat right air conditioning zone 4c, and air is blown out from the rear seat left face air outlet 66d toward the rear seat left air conditioning zone 4d.

If it is determined in step S102 that the occupant is not seated in the rear seat left seat 4d in advance, the process proceeds to step S104 , and the blower voltage applied to the rear seat side blower motor 62a based on TAORrDr. To decide.

  In this case, the servo motors 662a and 662b are respectively controlled so that the two wind direction plates 661a and the two wind direction plates 661b are directed to the rear seat right air conditioning zone 4c. Accordingly, air is blown out from both the rear seat right face outlet 66a and the rear seat left face outlet 66d toward the rear seat right air conditioning zone 4c.

  On the other hand, in step S105, if a predetermined time or more has elapsed since the determination in step S100 is YES, the determination is NO. In connection with this, it transfers to step S107 and determines the blower voltage applied to the rear seat side blower motor 62a based on TAORrDr and TAORrPa. The rear seat side blower voltage is determined in the same manner as the front seat side blower voltage as in the first embodiment.

  Next, the process proceeds to step S100a in FIG. 14, and when the average value of the detection temperatures Ta13 to Ta17 of the detection elements 713 to 717 of the passenger seat side detection unit 72 changes by a predetermined temperature (for example, 3 ° C.) or more, the rear left It is determined YES that an occupant has entered the seat 4d.

  Then, it transfers to step S101 and performs the calculation process of target blowing temperature TAORrDr, TAORrPa. In connection with this, it transfers to step S105 and it is determined whether more than predetermined time (for example, 5 minutes) passed since it determined as YES at step S100.

And before determining that more than a predetermined time has elapsed since the determination of YES in step S100a, the determination of NO is made in step S105. Accordingly, as in the first embodiment described above, in step S102a, when the occupant in the rear seat right seat 4c is judged YES as seated in advance, the process proceeds to step S 103a, the TAORrDr Based on this, the blower voltage to be applied to the rear seat side blower motor 62a is determined. In this case, the servo motors 662a and 662b are controlled to direct the two wind direction plates 661a to the rear seat right air conditioning zone 4c and to direct the two wind direction plates 661b to the rear seat right air conditioning zone 4d.

  If NO is determined in step S102a that no passenger is seated in the right rear seat 4c in advance, the process proceeds to step 104a and the blower voltage applied to the rear seat side blower motor 62a based on TAORrPa. To decide.

  In this case, the servo motors 662a and 662b are controlled to direct the two wind direction plates 661a and the two wind direction plates 661b toward the rear seat left air-conditioning zone 4d. Accordingly, air is blown out from both the rear seat right face outlet 66a and the rear seat left face outlet 66d toward the rear seat left air conditioning zone 4d.

  On the other hand, in step S105, it is determined as NO when a predetermined time or more elapses after it is determined as YES in step S100a. In connection with this, it transfers to step S107 and determines the blower voltage applied to the rear seat side blower motor 62a based on TAORrDr and TAORrPa.

  As described above, according to the present embodiment, for example, when an occupant has entered the rear seat right air conditioning zone 4c and the occupant is not seated in the rear seat left air conditioning zone 4d in advance, the servo motors 662a and 662b are used. Are controlled so that the two wind direction plates 661a and the two wind direction plates 661b are directed to the rear right seat air conditioning zone 4c.

  Accordingly, air is blown out from both the rear seat right face outlet 66a and the rear seat left face outlet 66d toward the rear seat right air conditioning zone 4c. Therefore, the rear seat right air-conditioning zone 4c is air-conditioned by air blown from both the rear seat right face outlet 66a and the rear seat left face outlet 66d. On the other hand, a stronger feeling of comfort can be given.

(Other embodiments)
In the first embodiment described above, the example in which the rear seat side centrifugal blower 62 that blows air to the air-conditioning zones 1c and 1d has been described as the air-conditioning means described in claim 7, but not limited thereto, the following ( You may make it like a) and (b).

  (A) In the case where the outlet switching doors 66b and 66c corresponding to the air conditioning zones 1c and 1d are configured to be interlocked, the servo motor 660c (actuator) that drives the outlet switching doors 66b and 66c is seated in advance. You may control based on the surface temperature of the passenger | crew who was doing.

  That is, the infrared temperature sensor 70 includes a non-contact temperature detection unit 71 (72) that detects the surface temperature of an occupant seated on one of the seats 4a and 4b in a non-contact manner, and drives the outlet switching doors 66b and 66c. When the air conditioner ECU 8 determines that the occupant has entered the other seat side of the seats 4a and 4b, and determines that the occupant has been seated in advance in one of the seats. The servo motor 660c is controlled based only on the surface temperature of the occupant previously seated in one of the seats.

  In other words, the outlet mode is determined based on the target outlet temperature corresponding to one of the target outlet temperatures TAORrDr and TAORrPa.

  (B) In the case where only one air mix door for adjusting the blowing temperature to be blown out to each of the air conditioning zones 1c and 1d is provided and the control of the blowing temperature to be blown to each of the air conditioning zones 1c and 1d is interlocked, the air conditioner ECU 8 4a and 4b, when it is determined that an occupant has entered the other seat side, and it is determined that the occupant has been seated in advance in one of the seats, the surface temperature of the occupant previously seated in the one seat Only based on controlling the servo motor that drives the air mix door.

  Further, not only the above (a) and (b) but also the following (c) and (d) may be used.

  (C) That is, in the vehicle air conditioner, toward the first and second air conditioning zones (1c, 1d) corresponding to the first and second seats (4c, 4d) arranged on the left and right in the passenger compartment. The first and second temperature adjusting means (65a, 65b) for independently adjusting the temperature of the air to be blown, and the air conditioning states of the first and second air conditioning zones are the first and second temperatures. An air conditioning unit that adjusts by the adjusting unit and the first and second non-contact temperature detecting units (71, 71) that independently detect the surface temperatures of the left and right occupants seated on the first and second seats in a non-contact manner; 72) and first and second temperature adjusting means independently controlled based on the surface temperatures of the left and right occupants detected by the first and second non-contact temperature detectors, Of the second temperature control means (S126, S128) and the first and second seats, at least When the boarding determination means (S100,...) For determining whether or not an occupant has entered one of the seats, and when the boarding determination means determines that an occupant has boarded the one seat, the first, When the seating determining means (S102) for determining whether or not an occupant has been seated in advance on the other seat of the second seats and the seating determining means for determining that the occupant has been seated in advance on the other seat Includes air blowing control means (S103,...) For controlling the air conditioning means based on the surface temperature of an occupant previously seated in the other seat.

  (D) In the vehicle air conditioner, the air conditioning state of the first and second air conditioning zones (1c, 1d) corresponding to the first and second seats (4c, 4d) arranged on the left and right sides in the vehicle interior is adjusted. Air-conditioning means (62), and first and second non-contact temperature detectors (71, 72) for independently detecting non-contact surface temperatures of left and right occupants seated in the first and second seats, The boarding determination means (S100,...) For determining whether or not an occupant has entered one of the first and second seats, and the boarding determination means when the occupant has entered the one seat side. When the determination is made, seat determination means (S102) for determining whether or not an occupant has been previously seated in the other seat of the first and second seats, and an occupant seated in the other seat in advance. If the seating determination means determines that the other seat has been Air-conditioning control means (S103, ...) for controlling the air-conditioning means based on the surface temperature of the occupant seated in advance, and predetermined after determining that the occupant has entered the one seat side When time elapses, the air conditioning control means controls the air conditioning means based on the surface temperatures of the left and right occupants detected by the first and second non-contact temperature detecting units.

  In the first embodiment described above, when an occupant has entered the rear seat right air-conditioning zone 4c (rear seat left air-conditioning zone 4d), and when a predetermined time has elapsed since the occupant entered the rear seat right air-conditioning zone 4c. In the above example, the rotation speed of the blower motor 62a (that is, the air flow rate of the blower 62) is controlled using the same target blowout temperature TAORrDr (TAORrPa). The target blowout temperature TAORrDr used for controlling the rotational speed of the blower motor 62a may be changed between when the occupant has entered and when a predetermined time or more has elapsed since the occupant entered the rear seat right air conditioning zone 4c. .

  In the first and second embodiments described above, an example in which it is determined for each seat whether or not an occupant has boarded the rear left and right seats 1c and 1d has been described. It may be determined whether or not an occupant has entered only one of the two seats 1c and 1d.

  In the first embodiment described above, an infrared sensor using a thermopile detection element is exemplified as the non-contact temperature sensor 70, but an infrared sensor using a bolometer-type detection element configured with a resistor having a large temperature coefficient, Other types of infrared sensors can also be used. Furthermore, not only the infrared sensor but also other types of surface temperature sensors that detect the surface temperature of the test object in a non-contact manner can be used.

  In the first embodiment described above, the solar radiation sensor 83a that detects the amount of solar radiation incident on the driver's seat side region and the solar radiation sensor 83b that detects the amount of solar radiation incident on the passenger seat side region are employed to achieve solar radiation. Although the example which calculates TAOFrDr and TAOFrPa using the solar radiation amounts TsDr and TsPa detected by the sensors 83a and 83b has been shown, the following may be used instead.

  That is, a solar radiation sensor that detects the amount of solar radiation incident from both the driver seat side area and the passenger seat side area is employed, and the right solar radiation correction coefficient fRrDr and the left solar radiation correction described later are added to the detected solar radiation amount Ts of this solar radiation sensor. Multiply the coefficient fRrPa to make Ts × fRrDr as the detected solar radiation amount TsDr and Ts × fRrPa as the detected solar radiation amount TsPa.

  Here, the coefficients fRrDr and fRrPa are calculated based on the temperature difference between the left and right window glass windows.

  That is, the window glass temperature on the right side of the front seat is an average value of temperatures detected by the detection elements 700 and 701 (FIG. 4) in the driver side detection unit 71 of the infrared temperature sensor 70, and the window on the left side of the front seat. The glass temperature is an average value of temperatures detected by the detection elements 700 and 701 in the passenger seat side detection unit 72 of the infrared temperature sensor 70.

  The control characteristics shown in FIG. 15 that define the relationship between the difference between the front and left window glass temperature differences and the coefficients fRrDr and fRrPa are preset and stored in the memory of the microcomputer. Both coefficients fRrDr and fRrPa can be determined based on the glass temperature difference.

  Specifically, the solar radiation correction coefficient fRrDr indicated by the solid line is determined so as to increase as the temperature difference increases. Also, the solar radiation correction coefficient fRrPa is determined so as to decrease conversely as the temperature difference increases.

  In the first embodiment described above, an example in which the average value of the detection temperatures Ta12 and Ta13 of the detection elements 711 and 712 of the infrared light receiving unit 70b of the driver seat side detection unit 71 (passenger seat side detection unit 72) is used as the interior temperature. As described above, instead of this, Ta12 × Ta1 is multiplied by coefficients k1 and k2 to obtain Ta12 × k1 and Ta13 × k2, and the average value of Ta12 × k1 and Ta13 × k2 {= (Ta12 × k1 + Ta13 × k2). ) / 2} may be the interior temperature.

  Further, the glass temperature is not limited to the case where the average values of the detection temperatures Ta00 and Ta01 of the detection elements 700 and 701 of the driver seat side detection unit 71 (passenger seat side detection unit 72) are used, but the detection temperatures Ta00 and Ta01 respectively. Is multiplied by coefficients k1 and k2 to obtain Ta00 × k1 and Ta01 × k2, and the average value of Ta00 × k1 and Ta01 × k2 may be used as the glass temperature.

  Furthermore, the occupant clothing temperature is not limited to the case where the average value of the detection temperatures Ta13 to Ta16 of the detection elements 713 to 716 of the driver seat side detection unit 71 (passenger seat side detection unit 72) is used. Ta13 × k1, Ta14 × k2, Ta15 × k3, and Ta16 × k4 are obtained by multiplying the coefficients k1, k2, k3, and k4, respectively. The average value of Ta13 × k1, Ta14 × k2, Ta15 × k3, and Ta16 × k4 = {(Ta13 × k1 + Ta14 × k2 + Ta15 × k3 + Ta16 × k4) / 4} may be set as the occupant clothing temperature.

  Hereinafter, the correspondence relationship between the above embodiment and the configuration of the scope of the claims of the present invention will be described. The rear right seat 4c corresponds to the first seat, and the rear left seat 4d corresponds to the second seat. The rear seat right air conditioning zone 1c corresponds to the first air conditioning zone, the rear seat left air conditioning zone 1d corresponds to the second air conditioning zone, the air mix door 65a corresponds to the first temperature adjusting means, and the air The mix door 65b corresponds to the second temperature adjusting means, the driver seat side detection unit 71 corresponds to the first non-contact temperature detection unit, and the passenger seat side detection unit 72 corresponds to the second non-contact temperature detection unit. To do. Then, “the process of calculating the target opening degree SWRrDr of the air mix door 55a in step S126 and outputting the target opening degree SWRrDr to the servo motor 650a in step S128” corresponds to the first temperature control means. “The process of calculating the target opening degree SWRrPa of the air mix door 55a in step S126 and outputting the target opening degree SWRrPa to the servo motor 650b in step S128” corresponds to the second temperature control means.

Steps S100, 100a, 100b, and 100c correspond to boarding determination means,
Steps S102 and S102a correspond to seating determination means, Steps S103, S104, S103a, S104a and S107 correspond to air blowing control means, TAORrDr and TAORrPa correspond to the first and second target temperatures, and “Step S101 "Process for calculating TAORrDr" corresponds to the first calculation means, "Process for calculating TAORrPa in step S101" corresponds to the second calculation means, and the rear seat right face outlet 66a is the first outlet. The rear seat left face outlet 66b corresponds to the second outlet, the wind direction plate 661a corresponds to the first wind direction adjusting means, the wind direction plate 661b corresponds to the second wind direction adjusting means, “Servo motor 662a and step S106a” correspond to the first wind direction control means. “Servo motor 662b and step S106” correspond to the second wind direction control means. When the occupant enters the rear right seat 4c side, the rear right seat 4c corresponds to “one seat” and the rear left seat 4d corresponds to “the other seat”. In this case, the wind direction plate 661b corresponds to “wind direction adjusting means on the other seat side of the first and second wind direction adjusting means”, and “servo motor 662b and step S106” are “first and second wind directions”. Of the control means, it corresponds to “wind direction control means corresponding to the other seat”, and the rear seat left face outlet 66b corresponds to “the outlet on the other seat side of the first and second outlets”. .

On the other hand, when an occupant has entered the rear left seat 4d side, the rear left seat 4d corresponds to "one seat" and the rear right seat 4c corresponds to "the other seat".
In this case, the wind direction plate 661a corresponds to “the wind direction adjusting means on the other seat side of the first and second wind direction adjusting means”, and “servo motor 662a and step S106a” are “first and second wind directions”. It corresponds to “wind direction control means corresponding to the other seat” of the control means. The rear seat right face outlet 66a corresponds to “the outlet on the other seat side of the first and second outlets”.

It is a plane schematic diagram which shows the blower outlet arrangement | positioning state of the vehicle air conditioner by 1st Embodiment of this invention. It is a typical block diagram of the whole vehicle air conditioner by 1st Embodiment. It is a schematic block diagram of the infrared temperature sensor by 1st Embodiment. It is explanatory drawing which illustrates the enlarged shape of a driver's seat side detection part among the infrared temperature sensors by 1st Embodiment. It is a flowchart which shows the outline | summary of the control processing of air-conditioner ECU by 1st Embodiment. It is a characteristic view for determining the air volume in the first embodiment. It is a characteristic view for determining inside and outside air mode in a 1st embodiment. It is a characteristic view for determining the blowing mode in the first embodiment. It is a flowchart which shows a part of control process for calculating a target blowing temperature and air volume in 1st Embodiment. It is a flowchart which shows the remainder of the control processing for calculating a target blowing temperature and air volume in 1st Embodiment. It is a flowchart which shows a part of control process for calculating target blowing temperature and air volume in the modification of 1st Embodiment. It is a flowchart which shows the remainder of the control processing for calculating a target blowing temperature and air volume in the modification of 1st Embodiment. It is a flowchart which shows a part of control process for calculating target blowing temperature and air volume in 2nd Embodiment of this invention. It is a flowchart which shows the remainder of the control processing for calculating target blowing temperature and air volume in 2nd Embodiment of this invention. It is a schematic block diagram in 2nd Embodiment. It is a characteristic view for determining the solar radiation correction coefficient of other embodiment.

Explanation of symbols

1c, 1d ... air conditioning zone, 4c, 4d ... seat, 6 ... rear seat air conditioning unit,
8 ... Air-conditioner ECU, 62 ... Blower, 65a, 65b ... Air mix door,
70: Infrared temperature sensor.

Claims (6)

A blower (62) for blowing air toward the first and second air-conditioning zones (1c, 1d) corresponding to the first and second seats (4c, 4d) arranged on the left and right in the vehicle interior;
First and second temperature adjusting means (65a, 65b) for independently adjusting the temperature of the air blown toward the first and second air conditioning zones,
First and second non-contact temperature detectors (71, 72) for independently detecting non-contact surface temperatures of left and right occupants seated in the first and second seats;
First and second temperatures for independently controlling the first and second temperature adjusting means based on the surface temperatures of the left and right occupants detected by the first and second non-contact temperature detecting units. Control means (S126, S128);
Boarding determination means (S100,...) For determining whether or not an occupant has boarded at least one of the first and second seats;
Seat determination means for determining whether an occupant is seated in advance in the other of the first and second seats when the occupant determination means determines that an occupant has entered the one seat side. (S102),
When the seating determination means determines that an occupant has been seated in advance in the other seat, the surface temperature of the occupant who has entered the one seat side and the surface temperature of the occupant who has previously seated in the other seat And a ventilation control means (S103,...) For controlling the air flow rate of the blower based only on the surface temperature of the passenger previously seated in the other seat. Air conditioner.   When the seating determination means determines that no passenger is seated in advance on the other seat, the air blow control means is configured to send the blower on the basis of the surface temperature of the passenger boarded on the one seat side. The vehicle air conditioner according to claim 1, wherein the air volume is controlled. In the case where the seating determination means determines that an occupant has been seated in advance in the other seat,
When a predetermined period has elapsed after the boarding determination means determines that an occupant has entered the one seat side, the air blowing control means (S107) is detected by the first and second non-contact temperature detection units. The vehicle air conditioner according to claim 1, wherein the air flow rate of the blower is controlled based on the surface temperatures of the left and right occupants. Based on the surface temperatures of the left and right occupants detected by the first and second non-contact temperature detectors, the first and second air blown toward the first and second air conditioning zones First and second calculation means (S101) for calculating target temperatures (TAORrDr, TAORrPa), respectively,
The first and second temperature control means are configured to cause the temperature of air blown toward the first and second air conditioning zones to approach the first and second target temperatures, respectively. 2 temperature control means are controlled independently,
When the seating determination means determines that an occupant has been seated in advance on the other seat, the air blowing control means (S103) corresponds to the other seat among the first and second target temperatures. The vehicle air conditioner according to any one of claims 1 to 3, wherein an air volume of the blower is controlled based on a target temperature. First and second outlets (66a, 66b) for blowing air blown by the blower toward the first and second air conditioning zones, respectively;
First and second wind direction adjusting means (661a, 661b) for independently adjusting the direction of air flow blown from the first and second outlets (66a, 66b);
First and second wind direction control means (662a, 662b) for independently controlling the first and second wind direction adjusting means,
When the seating determination means determines that no passenger is seated in advance in the other seat, the wind direction control means corresponding to the other seat of the first and second wind direction control means is the first seat. 1. Control the airflow direction adjusting means on the other seat side out of the second airflow direction adjusting means, and the air flow blown out from the air outlet outlet on the other seat side out of the first and second airflow outlets. The vehicle air conditioner according to any one of claims 1 to 4, wherein the vehicle air conditioner is directed toward the one seat (4c).   When the detected temperature of the non-contact temperature detecting unit on the one seat side of the first and second non-contact temperature detecting units changes by a predetermined temperature or more, the boarding determination means (S100...) The vehicle air conditioner according to any one of claims 1 to 5, wherein it is determined that an occupant has entered the vehicle.

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