JP4120613B2 - VEHICLE TEMPERATURE DETECTING DEVICE AND VEHICLE AIR CONDITIONER - Google Patents

Description

  The present invention relates to a vehicle temperature detection device that detects a surface temperature of a predetermined region in a vehicle compartment, and a vehicle air conditioner that includes a non-contact temperature sensor.

Conventionally, in an air conditioner for a vehicle, an air conditioning unit that controls the air conditioning of the passenger compartment, and a non-contact temperature sensor that is installed on the ceiling of the passenger compartment and detects the surface temperature of an occupant in a non-contact manner (specifically, an infrared temperature sensor) ) And an electronic control device that controls the air conditioning unit based on the detected temperature of the non-contact temperature sensor (for example, see Patent Document 1).
JP 2001-322416 A

  By the way, when this inventor examined about obtaining the wide detection angle in the non-contact temperature sensor of the above-mentioned vehicle air conditioner, the following thing was understood.

  That is, when a non-contact temperature sensor is installed in the vehicle interior and a wide viewing angle (that is, a wide temperature detection range) of the non-contact temperature sensor is obtained, the non-contact temperature sensor is disposed below the ceiling surface. Is required.

  For example, if only the non-contact temperature sensor is arranged so as to protrude downward from the ceiling surface, the presence of the non-contact temperature sensor becomes very conspicuous and the design of the vehicle interior is impaired.

  An object of the present invention is to provide a vehicle temperature detecting device and a vehicle air conditioner that can prevent a loss of design by disposing a non-contact temperature sensor while securing a wide visual field range. To do.

  The present invention is made by paying attention to the fact that a rear seat monitor unit (for example, a rear seat television unit) installed in a vehicle interior is arranged so as to protrude downward from the ceiling surface. It is.

Specifically, in the first aspect of the invention, the display panel (120) for displaying toward the rear seat side of the vehicle interior and the display panel provided so as to protrude below the ceiling in the vehicle interior are provided. A vehicle having a rear seat monitor unit (100) provided with a pedestal (10) that is provided with an inclined surface (111a) formed toward the rear seat side in a support and corner portion. Applies to
A vehicle temperature detection device including a non-contact temperature sensor (70a, 70b) for detecting a surface temperature of a predetermined region of a rear seat side in a vehicle interior in a non-contact manner,
The non-contact temperature sensor is installed on the inclined surface of the pedestal,
The rear seat monitor unit has a monitor circuit board (74a, 74b) provided with an electronic circuit for displaying an image on the display panel,
The non-contact temperature sensors (70a, 70b) include a sensor main body (74a, 74b) for detecting the surface temperature of the predetermined area on the rear seat side, and a sensor circuit for signal processing a detection signal output from the sensor main body. Is provided,
The sensor circuit is mounted on the monitor circuit board (74a, 74b).

  According to the first aspect of the present invention, the non-contact temperature sensor is installed on the rear seat monitor unit, so that only the non-contact temperature sensor is not conspicuous, and the non-contact temperature sensor is disposed below the ceiling. Therefore, it is possible to prevent the designability from being impaired by the arrangement of the non-contact temperature sensor while ensuring a wide visual field range.

  Here, since the rear seat monitor unit is originally installed to show the passenger seated in the rear seat, the rear seat monitor unit is a passenger seat seated in the rear seat (hereinafter referred to as the rear seat). It is installed so that it does not get in the way between passengers.

Therefore, as in the first aspect of the invention, when a rear seat sensor that detects the surface temperature of the predetermined area on the rear seat side in a non-contact manner is used as the non-contact temperature sensor, the rear seat sensor is By installing it in the rear seat monitor unit, it is possible to prevent an obstacle from entering between the rear seat sensor and the temperature to be detected. Therefore, the surface temperature of the object to be measured can be appropriately detected by the non-contact temperature sensor.

For example, according to the first aspect of the present invention , in the vehicle temperature detection device, the rear seat monitor unit protrudes below the ceiling from the display panel (120) that displays toward the rear seat side. A pedestal (10) that is provided and supports the display panel,
The corner portion of the pedestal is provided with an inclined surface (111a) formed toward the rear seat side,
The non-contact temperature sensor is installed on an inclined surface of the pedestal.

  Here, when the surface temperature of the rear seat side is detected by the non-contact temperature sensor, it is necessary to point the non-contact temperature sensor toward the rear seat occupant side. For this reason, although it is possible to arrange the non-contact temperature sensor so as to protrude from the pedestal and to direct the non-contact temperature sensor toward the rear seat occupant side, only the non-contact temperature sensor becomes conspicuous from the pedestal.

Therefore, as in the first aspect of the present invention, by installing the non-contact temperature sensor on the inclined surface of the pedestal, it is not necessary to arrange only the non-contact temperature sensor so as to protrude from the pedestal, thereby impairing the design. Without contact, the non-contact temperature sensor can be directed to the rear seat side.

Further, according to the invention described in claim 1, in a vehicle dual temperature sensing device, the rear seat monitor unit, the display monitor circuit board for an electronic circuit is provided for displaying an image on the panel (74a, 74b )
The non-contact temperature sensor (70a, 70b) is provided with a sensor main body (74a, 74b) for detecting the surface temperature of the predetermined region, and a sensor circuit for signal processing of a detection signal output from the sensor main body. And
The sensor circuit is mounted on the monitor circuit board (74a, 74b).

According to the first aspect of the present invention, since the sensor circuit is mounted on the monitor circuit board, it is not necessary to provide the sensor circuit independently from the monitor circuit board, so that the cost can be reduced.

  By the way, according to the study by the present inventors, when only the non-contact temperature sensor is arranged toward the rear seat occupant, the rear seat occupant is “seen by the non-contact temperature sensor” or “non-contact temperature sensor”. It has been found that there is a possibility of giving a sense of incongruity, such as “monitored by”.

Therefore, as in the invention according to claim 2, in the vehicle An assembly as claimed in claim 1, the rear seat monitor unit includes a light receiving portion (140 for receiving the light emitted from the remote control terminal )
The non-contact temperature sensor is provided in the light receiving section in the rear seat monitor unit.

  Here, the light receiving portion is originally arranged toward the rear seat occupant, and for a rear seat occupant accustomed to such a light receiving portion, if a non-contact temperature sensor is attached to the light receiving portion, An uncomfortable feeling such as “seen by a non-contact temperature sensor” can be suppressed for a seat occupant.

According to a third aspect of the present invention, in the vehicle temperature detection device according to the first or second aspect, the non-contact temperature sensor is non-contact if the direction of the temperature detection surface is variable. Even if the distance between the contact temperature sensor and the detection target (specifically, the rear seat occupant) changes, the surface temperature of the detection target can be detected well by adjusting the direction of the temperature detection surface. it can.

Incidentally, according to the invention described in claim 4, the rear seat monitor unit, characterized in that it is a TV unit.

According to the above, as described above, since only the non-contact temperature sensor can be disposed without conspicuously in the vehicle interior, the non-contact temperature sensor according to any one of claims 1 to 4 can be used to maintain the design of the vehicle interior. The invention is preferably applied to a vehicle air conditioner as in the invention described in claim 5 .

Specifically, in the invention described in claim 5, the display panel (120) for displaying toward the rear seat side of the vehicle interior, and the display panel provided so as to protrude below the ceiling in the vehicle interior are provided. A vehicle having a rear seat monitor unit (100) provided with a pedestal (10) that is provided with an inclined surface (111a) formed toward the rear seat side in a support and corner portion. Applies to
Air conditioning means (6) for air conditioning the vehicle interior;
Non-contact temperature sensors (70a, 70b) for detecting the surface temperature of the predetermined area on the rear seat side in the vehicle compartment in a non-contact manner;
A vehicle air conditioner comprising: control means (8) for controlling the air conditioning means based on a temperature detected by the non-contact temperature sensor;
The non-contact temperature sensor is installed on the inclined surface of the pedestal,
The rear seat monitor unit has a monitor circuit board (74a, 74b) provided with an electronic circuit for displaying an image on the display panel,
The non-contact temperature sensors (70a, 70b) include a sensor main body (74a, 74b) for detecting the surface temperature of the predetermined area on the rear seat side, and a sensor circuit for signal processing a detection signal output from the sensor main body. Is provided,
The sensor circuit is mounted on the monitor circuit board (74a, 74b).

  Therefore, as in the first aspect of the present invention, the non-contact temperature sensor can be disposed on the lower side from the ceiling without making the non-contact temperature sensor conspicuous. It can suppress that design nature is impaired by arrangement of a sensor.

Further, as in the invention described in claim 5 , when the non-contact temperature sensor is a rear seat sensor that detects the surface temperature of the predetermined region on the rear seat side in a non-contact manner, Since the obstacle can be prevented from entering between the temperature detection objects, the surface temperature of the object to be detected can be appropriately detected by the rear seat sensor as in the first aspect of the invention.

Further, in the invention according to claim 5 , the rear seat monitor unit includes a display panel (120) for displaying toward the rear seat side, and a projection panel provided so as to protrude below the ceiling. A pedestal (10) that supports
The corner portion of the pedestal is provided with an inclined surface (111a) formed toward the rear seat side,
The non-contact temperature sensor is installed on an inclined surface of the pedestal.

Therefore, similarly to the first aspect of the invention, by installing the non-contact temperature sensor on the inclined surface of the pedestal, it is not necessary to arrange only the non-contact temperature sensor so as to protrude from the pedestal, thereby impairing the design. In addition, the non-contact temperature sensor can be directed to the rear seat side.

Furthermore, in the invention according to claim 5 , the rear seat monitor unit has a monitor circuit board (74a, 74b) provided with an electronic circuit for displaying an image on the display panel,
The non-contact temperature sensor (70a, 70b) is provided with a sensor main body (74a, 74b) for detecting the surface temperature of the predetermined region, and a sensor circuit for signal processing of a detection signal output from the sensor main body. And
The sensor circuit is mounted on the monitor circuit board (74a, 74b).

Therefore, similarly to the first aspect of the invention, mounting the sensor circuit on the monitor circuit board eliminates the need to provide the sensor circuit independently from the monitor circuit board, thereby reducing the cost. .

Further, in the invention according to claim 6 , the rear seat monitor unit is provided with a light receiving portion (140) for receiving light emitted from the remote control terminal,
The non-contact temperature sensor is provided in the light receiving unit in the rear seat monitor unit.

Therefore, similarly to the second aspect of the present invention, if the non-contact temperature sensor is provided in the light receiving portion, it is possible to prevent the rear seat occupant from being given a sense of discomfort such as “seen by the non-contact temperature sensor”. be able to.

According to a seventh aspect of the present invention, the non-contact temperature sensor is configured so that, even if the distance between the non-contact temperature sensor and the detection target is changed, as long as the direction of the temperature detection surface is variable. As in the invention described in (1), the surface temperature of the detection target can be favorably detected by adjusting the direction of the temperature detection surface.

In the invention according to claim 8 , a television unit may be used as the rear seat monitor unit.

  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)
A first 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 a control block.

  In the first embodiment, a total of four air-conditioning zones 1a, 1b, 1c, and 1d on the front, rear, left, and right sides of the vehicle interior 1 are independently air-conditioned. 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 air conditioning zone 1a is located on the right side of the front seat air conditioning zone, that is, on the driver's seat side. To do. The air conditioning zone 1b is located on the left side of the front seat air conditioning zone, that is, on the passenger seat side.

  The air conditioning zone 1c is located near the right window in the rear seat air conditioning zone, and the air conditioning zone 1d is located near the left window in the rear seat air conditioning zone. 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 is composed of a front seat air conditioning unit 5 and a rear seat air conditioning unit 6 as air conditioning means. The front seat air conditioning unit 5 is for independently adjusting the air conditioning state (for example, air temperature) of the left and right air conditioning zones 1a and 1b of the front seat. This is for independently adjusting the air conditioning states of the left and right air conditioning zones 1c, 1d.

  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 has a servo motor 510a as a driving means. It is connected.

  A centrifugal blower 52 that generates an air flow blown toward the vehicle interior 1 is provided in the duct 50 on the air downstream side of the outside air inlet 50b and the inside air inlet 50a. The centrifugal blower 52 includes a centrifugal impeller and a blower motor 52a that rotates the impeller. In FIG. 2, this impeller is an axial-flow impeller for simplification of the drawing, but a centrifugal impeller is actually used.

  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, an air heating means is provided on the downstream side of the evaporator 53. The heater core 54 is provided.

  A partition plate 57 is provided in the duct 50 on the air downstream side of the evaporator 53. By this partition plate 57, the air passage in the duct 50 is divided into two passages on the left and right sides of the vehicle, that is, on the driver's seat side. It is partitioned into a passage 50c and a passenger seat side passage 50d.

  A bypass passage 51a is formed on the side of the heater core 54 in the driver seat side passage 50c, and the bypass passage 51a bypasses the cool air cooled by the evaporator 53 with respect to the heater core 54.

  Further, a bypass passage 51b is formed on the side of the heater core 54 in the passenger seat side passage 50d, and the bypass passage 51b causes the heater core 54 to bypass the cold air cooled by the evaporator 53.

  In the driver seat side passage 50c and the passenger seat side passage 50d, air mix doors 55a and 55b are respectively provided on the air upstream side of the heater core 54 so as to be independently operable. The air mix door 55a on the driver's seat has a ratio between the amount of cool air flowing through the driver's seat side passage 50c passing through the heater core 54 (warm air amount) and the amount passing through the bypass passage 51a (cool air amount) depending on the opening. It adjusts and the blowing air temperature to the air-conditioning zone 1a at the front seat driver's seat side is adjusted.

  Further, the air mix door 55b on the passenger seat side has an opening degree between the amount of cold air flowing through the passenger seat side passage 50d (warm air amount) passing through the heater core 54 and the amount passing through the bypass passage 51b (cold air amount). The ratio is adjusted to adjust the temperature of air blown to the air conditioning zone 1b on the front passenger seat side.

  In addition, servo motors 550a and 550b as driving means are connected to the left and right air mix doors 55a and 55b, respectively. The opening degree of the air mix doors 55a and 55b is determined by the servo motors 550a and 550b, respectively. Adjusted independently.

  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 liquid receiver, and a pressure reducer (not shown). The evaporator 53 cools the air in the duct 50 as the low-pressure refrigerant absorbs latent heat of vaporization and evaporates from the air flowing in the duct 50. Note that the compressor of the refrigeration cycle is connected to the vehicle engine via an electromagnetic clutch (not shown), and is driven and stopped 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.

  Of the driver seat side passage 50c and the passenger seat side passage 50d, a driver seat side face outlet 2a and a passenger seat side face outlet 2b are provided on the air downstream side (most downstream portion) of the heater core 54.

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

  Furthermore, the driver's seat side face outlet 2a is opened and closed at the upstream side of each of the driver's seat side face outlet 2a and the passenger's side face outlet 2b in the driver seat side passage 50c and the passenger seat side passage 50d. An outlet switching door 56b that opens and closes the outlet switching door 56a and the passenger side face outlet 2b is provided. The air outlet switching doors 56a and 56b are driven to open and close by a servo motor 560a on the driver's seat and a servo motor 560b on the passenger's seat as driving means, respectively.

  The driver's seat-side face outlet 2a and the passenger's-side face outlet 2b are, as shown in FIG. 1, specifically a center face outlet located at a position near the center in the left-right direction of the instrument panel 7, respectively. 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 2a, 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 portion of the passenger seat side passage 50d, in addition to the passenger seat face outlet 2b, 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 50d to the lower half of the passenger seat occupant. 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. Each of the driver seat side face, foot, and defroster air outlet switching doors is driven to open and close in conjunction with the driver seat side servo motor 560a.

  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 front door side face, foot, and defroster air outlet switching doors are driven to open and close in conjunction with the above-described front passenger side servo motor 560b.

  The rear seat air conditioning unit 6 includes a duct 60 for blowing air into the passenger compartment 1. Connected to the most upstream portion in the duct 60 is an inside air introduction duct 60b that introduces only the inside air from the vehicle interior 1 through the inside air introduction port 60a.

  A centrifugal blower 62 that generates an air flow blown toward the vehicle interior 1 is provided on the 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, this impeller also shows an axial-flow impeller for the sake of simplification, as in the case described above, but a centrifugal impeller is actually used.

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

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

  A bypass passage 61a is formed on the side of the heater core 64 in the rear seat right passage 60c, and the bypass passage 61a bypasses the cool air cooled by the evaporator 63 with respect to the heater core 64.

  Further, a bypass passage 61b is formed on the side of the heater core 64 in the rear left seat passage 60d, and the bypass passage 61b causes the heater core 64 to bypass the cold air cooled by the evaporator 63.

  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 air mix door 65a on the right side of the rear seat is a ratio of the amount passing through the heater core 64 (warm air amount) and the amount passing through the bypass passage 61a (cold air amount) out of the cold air flowing through the rear seat right passage 60c. Is adjusted to adjust the temperature of the air blown to the air conditioning zone 1c on the right side of the rear seat.

  Further, the air mix door 65b on the left side of the rear seat has a degree of opening between the amount of cold air passing through the rear seat left passage 60d (warm air amount) passing through the heater core 64 and the amount passing through the bypass passage 61b (cold air amount). The ratio is adjusted to adjust the temperature of the blown air to the air conditioning zone 1d on the left side of the rear seat.

  Servo motors 650a and 650b as drive means are connected to the right and left rear air mix doors 65a and 65b, respectively, and the right and rear left air mix doors 65a and 65b are connected to the air motor. The opening is independently adjusted by the servo motors 650a and 650b.

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

  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 the evaporator. The air after passing 63 is heated.

  A rear seat right face outlet 2c is provided on the air downstream side (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 2c blows air from the rear seat right passage 60c toward the upper half of the passenger seated on the right side of the rear seat (that is, the rear seat driver seat side) (hereinafter referred to as the rear seat right passenger).

  In addition, a rear seat left face outlet 2d is provided on the downstream side (the most downstream portion) of the heater core 64 in the rear seat left passage 60d in the duct 60. The rear seat left face outlet 2d blows air from the rear seat left passage 60d toward the upper half of the passenger seated on the left side of the rear seat (that is, the rear passenger seat side) (hereinafter referred to as the rear seat left passenger).

  Here, air outlet switching doors 66a and 66b are respectively provided in the air upstream portions of the left and right face outlets 2c and 2d in the rear seat, and open and close the respective right and left face outlets 2c and 2d in the rear seat. ing. The rear seat left and right outlet switching doors 66a and 66b are opened and closed by servomotors 660a and 660b as driving means.

  Although not shown in FIGS. 1 and 2, a rear seat right foot outlet is provided in the most downstream portion of the rear seat right passage 60 c in addition to the rear seat right face outlet 2 c. 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 2d. The rear seat left foot outlet blows air from the rear seat left passage 60d toward the lower half of the rear left passenger.

  Air outlet switching doors (not shown) are provided in the air upstream portions of the left and right foot outlets of the rear seat, and the servo motors 660c and 660d are provided at the outlet right and left rear door switching doors. Are driven to open and close respectively.

  An outside air temperature sensor 81, a cooling water temperature sensor 82, a solar radiation sensor 83, an inside air temperature sensor 84, and evaporator temperature sensors 86 and 87 are connected to the input side of the air conditioner ECU 8 as a control means (air conditioning control device).

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

  The solar radiation sensor 83 is a well-known two-element (2D) type solar radiation sensor that is disposed inside the front window at a substantially central portion in the left-right direction of the vehicle. The solar radiation sensor 83 is incident on the driver's seat side air conditioning zone 1a in the passenger compartment. The amount of solar radiation and the amount of solar radiation incident on the passenger side air conditioning zone 1b are detected, and solar radiation signals TsDr and TsPa corresponding to the detected solar radiation amounts are output to the air conditioner ECU 8.

  The inside air temperature sensor 84 detects a typical air temperature in the air conditioning zones 1a and 1b (front seat side air conditioning regions) in the passenger compartment, and outputs an inside air temperature signal TrFr corresponding to the detected temperature to the air conditioner ECU 8. The evaporator temperature sensor 86 detects the blown air temperature of the evaporator 53 and outputs an evaporator blown temperature signal TeFr corresponding to the detected temperature to the air conditioner ECU 8. The evaporator temperature sensor 87 is the blown air temperature of the evaporator 63. And outputs an evaporator outlet temperature signal TeRr corresponding to the detected temperature to the air conditioner ECU 8.

  Further, the air conditioner ECU 8 is connected with temperature setting switches 9, 10, 11, and 12 in which desired temperatures FrTsetDr, FrTsetPa, RrTsetDr, and RrTsetPa in the air conditioning zones 1a, 1b, 1c, and 1d are set by the passenger. In the vicinity of each of the temperature setting switches 9, 10, 11, and 12, there are provided displays 9a, 10a, 11a, and 12a as notification means (display means) for displaying the set contents such as the desired temperature. The displays 9a, 10a, 11a, 12a are arranged for the passengers on the front side of the vehicle for each seat.

  Further, the air conditioner ECU 8 includes a matrix infrared temperature sensor for the right side and the left side as a non-contact temperature sensor (hereinafter referred to as a non-contact temperature sensor) for detecting the surface temperature of the air conditioning zone 1c on the right rear seat and the air conditioning zone 1d on the left rear seat. IR sensors 70a and 70b).

  Here, as the IR sensors 70a and 70b for the right side and the left side, thermopile detection elements that detect changes in electromotive force corresponding to changes in the amount of input infrared rays as temperature changes are used.

  Next, the arrangement and configuration of the IR sensors 70a and 70b will be described with reference to FIGS.

  That is, the IR sensors 70a and 70b are installed in the base 110 of the rear seat television unit 100 provided in the vehicle interior, as shown in FIG.

  Here, the rear-seat TV unit 100 will be described. As shown in FIG. 3, the rear-seat TV unit 100 is provided toward an occupant seated in the rear seat at the center of the ceiling in the vehicle interior. The display panel 120 is configured to display an image and the like, and a pedestal 110 that supports the display panel 120 so as to be swingable. Here, the display panel 120 is swung in the clockwise direction and arranged toward the rear seat (see FIG. 3), and is swung in the counterclockwise direction and closed (see FIG. 4).

  On the other hand, the pedestal 110 includes a case 111 formed in a flat shape. The upper portion of the case 111 is embedded above the ceiling material 130, and the lower portion of the case 111 is located below the ceiling material 130. It protrudes. Accordingly, the pedestal 110 is provided so as to protrude downward from the ceiling surface. An inclined surface 111a is provided on the rear side of the case 111, and the inclined surface 111a faces the rear seat side.

  Here, a TV circuit board 150 and an infrared light receiving unit 140 (see FIG. 3) are provided in the case 111. The TV circuit board 150 controls the display panel 120 to display a TV image or the like. The electronic circuit is installed.

  The infrared light receiving unit 140 is arranged to face the rear seat through the opening of the inclined surface 111a, receives a communication signal output from the remote control terminal using infrared as a medium, and transmits the communication signal to the TV electronic circuit. Output. The remote control terminal is a terminal for remotely operating the rear seat television unit 100.

  Further, the IR sensors 70a and 70b are juxtaposed in the left-right direction in the infrared light receiving unit 140 in the case 111, and the sensor body 76a of the IR sensor 70a is inclined from the inside of the case 111 as shown in FIG. It arrange | positions so that the rear seat side may be faced through the opening part of the surface 111a. The sensor main body 76b of the IR sensor 70b is disposed so as to face the rear seat side from the inside of the case 111 through the opening of the inclined surface 111a.

  In addition, sensor circuit boards 74a and 74b of IR sensors 70a and 70b are arranged in the case 111. As shown in FIGS. 3 and 4, the sensor circuit boards 74a and 74b of the sensor circuit boards 74a and 74b are arranged on the respective surfaces. Main bodies 76a and 76b are respectively mounted. Each of the sensor circuit boards 74a and 74b is equipped with a sensor processing circuit. Each sensor processing circuit subjects the detection signals output from the sensor bodies 76a and 76b to signal processing such as waveform shaping and voltage amplification, and the air conditioner ECU 8 Output to.

  Here, the right and left sensor bodies 76a and 76b have the same configuration. Hereinafter, the right sensor body 76a will be described, and the left sensor body 76b will be briefly described.

  As shown in FIG. 6, the right-side sensor body 76a includes a detection unit 71. The detection unit 71 includes a substrate 71a, a sensor chip 72 installed on the substrate 71a, and the sensor chip 72. An infrared absorption film 73 is provided so as to cover the surface. The detector 71 is disposed on the pedestal 71c and is covered with a cup-shaped case 71b. A rectangular window 71d is opened at the bottom of the case 71b, and a lens 71e is fitted in the window 71d. Further, the infrared absorption film 73 plays a role of absorbing infrared rays incident from the respective temperature detection objects in the air conditioning zones 1c and 1d through the lens 71e and converting them into heat.

  On the sensor chip 72, twelve thermocouple portions Dir1 to Dr12 are arranged, and these thermocouple portions Dir1 to Dir12 are respectively configured to convert heat generated from the infrared absorption film 73 into voltage (electric energy). Each is a temperature detecting element to be converted.

  FIG. 7 is a diagram showing the arrangement position of the IR sensor 76a (70b) and the test temperature ranges of the thermocouple parts Dir1 to Dir12. In addition, the code | symbol Dir1-Dir12 in FIG. 7 shows the to-be-tested temperature range of thermocouple part Dir1-Dir12.

  First, in the sensor body 76a for the right side, the test temperature range of the thermocouple parts Dir1 and Dir2 is set to the rear right side window, and the test temperature range of the thermocouple parts Dir3 and Dir4 is set to the interior part of the rear right door. Is done. The test temperature range of the thermocouple portions Dir5 to Dir12 is set on the occupant surface such as knees, thighs, chests, and shoulders of the occupant in the right seat of the rear seat.

  Here, the surface temperature of the side window is regarded as the outside air temperature, and the surface temperature of the interior portion and the passenger surface is regarded as the vehicle interior temperature.

  On the other hand, the temperature range to be detected in the air conditioning zone 1d on the left side of the rear seat by the left IR sensor 70b is symmetrical with the temperature range to be detected by the right IR sensor 70a with respect to the center line on the left and right sides of the vehicle. Omitted.

  That is, in the sensor body 76b for the left side, the test temperature range of the thermocouple parts Dir1 and Dir2 is set to the rear right side window, and the test temperature range of the thermocouple parts Dir3 and Dir4 is set to the interior part of the rear left side. The The test temperature range of the thermocouple portions Dir5 to Dir12 is set on the occupant surface such as the knee, thigh, chest, and shoulder of the occupant in the left seat of the rear seat.

  On the other hand, the air conditioner ECU 8 is a well-known one that includes an analog / digital converter, a microcomputer, and the like. The right and left IR sensors 70a and 70b, the solar radiation sensor 83, the temperature sensors 81 and 82, 84, 86, 87 and the output signals output from the temperature setting switches 9, 10, 11, 12 are configured to be analog / digital converted by an analog / digital converter and input to the microcomputer, respectively. .

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

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

  When the power is turned on, the air conditioner ECU 8 starts a control program (computer program) stored in the memory, and executes an air conditioning control process according to the flowchart shown in FIG. Hereinafter, the front seat air conditioning process and the rear seat air conditioning process will be described separately with reference to FIG. FIG. 8 shows the contents of each air conditioning process.

(Front seat air conditioning)
First, the set temperature signals FrTsetDr and FrTsetPa are read from the temperature setting switches 9 and 10 (step S121), and the outside air temperature signal Tamdisp and the solar radiation amount signals TsDr and TsPa are read from the outside air temperature sensor 81 and the solar radiation sensor 83, and the inside air temperature sensor. The inside air temperature TrFr is read from 84 (step S122).

  Then, the set temperature signal FrTsetDr, the outside air temperature signal Tam, the solar radiation amount signal TsDr, and the inside air temperature signal TrFr are substituted into Equation 1 to calculate the target blowing temperature TAOFrDr of the air blown into the vehicle interior (step S123). This target blowing temperature TAOFrDr is a target temperature required to maintain the temperature of the front seat right side (driver's seat) air conditioning zone 1a at the set temperature FrTsetDr, regardless of changes in the vehicle environmental conditions (air conditioning thermal load conditions).

FrTAODr = KsetFrDr.FrTsetDr-KrFr.TrFr-Kam.Tam-KsDr.TsDr + CFrDr (Formula 1)
KsetFrDr is a front seat right temperature setting gain, KrFr is a front seat inner temperature gain, Kam is an outside air temperature gain, KsDr is a solar radiation gain, and CFrDr is a front seat right correction constant.

  Next, the outside air temperature signal Tam, the set temperature signal FrTsetPa, the solar radiation amount signal TsPa, and the inside air temperature TrFr are substituted into Equation 2 to calculate the target blowing temperature TAOFrPa of the air blown into the vehicle interior (step S123). This target blowing temperature TAOFrPa is a target temperature required to maintain the temperature of the front seat left (passenger seat) air conditioning zone 1b at the set temperature FrTsetPa.

FrTAOPa = KsetFrPa · FrTsetPa−KrFr · TrFr−Kam · Tam−KsPa · TsPa + CFrPa (Formula 2)
KsetFrPa is a front seat left side temperature setting gain, KrFr is a front seat inside air temperature gain, Kam is an outside air temperature gain, KsPa is a solar radiation gain, and CFrPa is a front seat left side correction constant.

  Next, based on the average value of FrTAOPa and FrTAODr (hereinafter referred to as the front seat target average value), either the inside air circulation mode or the outside air introduction mode is determined as the inside / outside air switching mode according to the control map of FIG. (Step S124). In the inside air circulation mode, vehicle interior air (inside air) is introduced from the inside air introduction port 50a, and in the outside air introduction mode, vehicle compartment outside air (outside air) is introduced from the outside air introduction port 50b.

  Specifically, as shown in FIG. 9, in the area where the average value of FrTAOPa and FrTAODr (corresponding to TAO in FIG. 9) is a predetermined temperature or less (maximum cooling area), the inside / outside air switching door 51 introduces the inside air. When the inside air circulation mode in which the opening 50a is fully opened and the outside air introduction port 50b is fully closed is selected and the average value of FrTAOPa and FrTAODr becomes higher than a predetermined temperature, the outside air introduction door 50b is fully opened by the inside / outside air switching door 51, and the inside air introduction is performed. The outside air introduction mode for fully closing the mouth 50a is selected.

  Next, the outlet mode is individually determined for the front seat air conditioning zones 1a and 1b with reference to FIG. 10 (step S125). FIG. 10 is a control map for determining the outlet mode stored in advance in the ROM. In this example, as FrTAODr (corresponding to TAO in FIG. 10) rises, the outlet mode of the air conditioning zone 1a is changed. A face (FACE) mode → bi-level (B / L) mode → foot (FOOT) mode is automatically switched in order. Further, as FrTAOPa (corresponding to TAO in FIG. 10) rises, the air outlet mode of the air-conditioning zone 1b is automatically automatically changed from the face (FACE) mode to the bi-level (B / L) mode to the foot (FOOT) mode. It is supposed to switch to.

  Here, the face mode is a mode in which conditioned air is blown out only from the face outlet, and the foot mode is a mode in which conditioned air is blown out only from the foot outlet. The bi-level mode is a mode in which conditioned air is blown out from the face air outlet and the foot air outlet.

  For example, in the face mode, the face outlet 2a (2b) is opened at the outlet switching door 56a (56b), and the conditioned air is blown out only from the face outlet 2a (2b) toward the passenger's upper body side in the passenger compartment. In the bi-level mode, the blower outlet switching door 56a (56b) opens the face blower outlet 2a (2b) and the foot blower outlet (not shown), and the conditioned air flows from the face blower outlet 2a (2b) and the foot blower outlet. Blows out simultaneously to the passenger's upper body and passenger's lower body in the passenger compartment. In the foot mode, the foot outlet is fully opened at the outlet switching door (not shown), and the conditioned air is mainly blown out from the foot outlet toward the passenger's lower body side.

  As described above, when the air outlet zone is determined for each air conditioning zone, each servo motor of each air outlet switching door is controlled for each air conditioning zone so that the air outlet mode determined for each air conditioning zone is set. Open and close the air outlet switching doors.

  Next, the blower voltage to be applied to the blower motor 52a is determined based on the average values of the target blow temperatures FrTAOPa and FrTAODr (step S126). This blower voltage is for controlling the air volume of the blower 52, and is determined according to the control map of FIG. 11 stored in advance in the ROM based on the average value of FrTAOPa and FrTAODr.

  In the control map of FIG. 11, TAO in FIG. 11 corresponds to the average value of FrTAOPa and FrTAODr, and when this average value (= TAO) is in the intermediate region, the blower voltage (that is, the air volume of the blower 52) is a constant value. When the TAO is larger than the intermediate region, the blower voltage (that is, the air volume of the blower 52) increases as the TAO increases. Further, when TAO is smaller than the intermediate region, the blower voltage (that is, the air volume of the blower 52) decreases as TAO decreases. In this way, the blower voltage is determined.

  Next, target opening degrees θ1 and θ2 of the air mix doors 55a and 55b are calculated by the following mathematical formulas 3 and 4 (step S127).

θ1 = {(FrTAODr−TeFr) / (Tw−TeFr)} × 100 (%) (Formula 3)
θ2 = {(FrTAOPa−TeFr) / (Tw−TeFr)} × 100 (%) (Formula 4)
In Equations 3 and 4, TeFr is an evaporator outlet temperature signal of the evaporator temperature sensor 86, and Tw is a cooling water (hot water) temperature signal of the cooling water temperature sensor 82. θ1 = 0% and θ2 = 0% are maximum cooling positions, and in the driver seat side passage 50c and the passenger seat side passage 50d, the entire amount of air (cold air) after passing through the evaporator 53 on the front seat side is the bypass passage 51a, It flows through 51b. Further, θ1 = 100% and θ2 = 100% are maximum heating positions. In the driver seat side passage 50c and the passenger seat side passage 50d, the entire amount of air (cold air) after passing through the evaporator 53 on the front seat side is the core heater 54. It flows into and is heated.

  Control signals indicating the blower voltage, the target opening θ1, θ2, the inside / outside air switching mode, and the outlet mode determined as described above are output to the servo motors 510a, 550a, 550b, 560a, 560b, the blower motor 52a, and the like. Then, each operation of the inside / outside air switching door 51, the air mix doors 55a and 55b, the outlet switching doors 56a and 56b, and the blower 52 is controlled (step S128).

  Thereafter, the process proceeds to step S129, and when a certain period of time 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.

(Rear seat air conditioning)
In this case, the set temperature signals RrTsetDr and RrTsetPa are read from the temperature setting switches 11 and 12 (step S121). Further, the outside air temperature signal Tamdisp and the solar radiation amount signals TsDr and TsPa are read from the outside air temperature sensor 81 and the solar radiation sensor 83, and the detected temperatures Tir1 to Tir12 are read from the thermocouple parts Dir1 to Dir12 of the IR sensor 70a. Further, the detected temperature signals Tir1 to Tir12 are read from the thermocouple parts Dir1 to Dir12 of the IR sensor 70b (step S122).

Based on the detected temperature signals Tir1 to Tir12 from the IR sensor 70a, <window temperature> = (Tir1 + Tir2) / 2,
<Interior temperature> = (Tir3 + Tir4) / 2,
<Occupant temperature> = (Tir5 + Tir6 + Tir7 + Tir8 + Tir9
+ Tir10 + Tir11 + Tir12) / 8,
<Average of interior temperature and occupant temperature> = {<interior temperature> + <occupant temperature>} / 2
Etc. are calculated.

  Then, <average of interior temperature and occupant temperature>, <window temperature>, set temperature signal RrTsetDr, and solar radiation signal TsDr are substituted into Equation 5 to calculate a target blowout temperature RrTAODr of the air blown into the vehicle interior (step S123). ).

  This target outlet temperature RrTAODr is a target temperature required to maintain the temperature of the rear seat right air-conditioning zone 1c at the set temperature RrTsetDr regardless of changes in vehicle environmental conditions (air-conditioning heat load conditions).

RrTAODr = RrKset × RrTsetDr
-Kir x <average of interior temperature and passenger temperature>
−RrKam × <window temperature>
−RrKs × TsDr−RrCDr (Formula 5)
Here, RrKsetDr (= 7.0) is the rear seat right side temperature setting gain, RrKamDr (= 1.1) is the outside air temperature gain, Kir (= 3.0) is the rear seat right side IR gain, and RrKs. (= 0.42) is a solar radiation gain. RrCDr is a rear seat right side correction constant, and is determined by the control map shown in FIG.

  The control map of FIG. 12 is a characteristic diagram in which the vertical axis is RrCDr and the horizontal axis is the outside air temperature. In this embodiment, <window temperature> is adopted as the outside air temperature, and RrCDr is determined by this <window temperature>. Will be decided.

  Next, calculation of the target blowing temperature RrTAOPa of the air blown out to the rear seat right air conditioning zone 1d in the vehicle interior will be described. Note that the calculation of the target blowing temperature RrTAOPa is substantially the same as the calculation of the target blowing temperature RrTAODr except that the target air-conditioning zone is different. Therefore, the calculation of the target blowing temperature RrTAOPa is simplified.

  This target blowing temperature RrTAOPa is a target temperature necessary for maintaining the temperature of the rear seat right air-conditioning zone 1d at the set temperature RrTsetPa regardless of changes in the vehicle environmental conditions (air conditioning heat load conditions).

RrTAOPa = RrKset × RrTsetPa
-Kir x <average of interior temperature and passenger temperature>
−RrKam × <window temperature>
−RrKs × TsPa−RrCPa (Formula 6)
Here, RrKsetPa (= 7.0) is the temperature setting gain for the left rear seat, RrKamPa (= 1.1) is the outside air temperature gain, Kir (= 3.0) is the IR gain for the left rear seat, RrKs (= 0.42) is a solar radiation gain. RrCPa is a rear seat left-side correction constant, and is determined by the outside air temperature (<window temperature>), similar to RrCDr.

  Next, without determining the inside / outside air mode determination processing (step S124) (this is because the outside air mode is not set in the rear seat air conditioning), the air outlet mode determination processing (step S125) is executed. In this process for determining the air outlet mode, the air outlet mode is individually determined for the rear seat air conditioning zones 1c and 1d based on RrTAODr and TAORrPa, as shown in FIG.

  Specifically, as the air outlet mode of the air-conditioning zone 1c, TAO in FIG. 10 is set to RrTAODr, and the outlet mode is changed from the face (FACE) mode to the bi-level (B / L) mode to the foot as the RrTAODr increases. The mode is automatically and sequentially switched to the (FOOT) mode. In addition, as the air outlet mode of the air conditioning zone 1d, TAO in FIG. 7 is set to TAORrPa, and the air outlet mode is automatically and sequentially switched from face mode to bi-level mode to foot mode as TAORrPa increases.

  Here, in the face mode, the face air outlet 2c (2d) is opened at the air outlet switching door 66a (66b), and the conditioned air blows out only from the face air outlet 2c (2d) toward the occupant upper body side in the passenger compartment. In the bi-level mode, the blower outlet switching door 66a (66b) opens the face blower outlet 2c (2d) and the foot blower outlet (not shown), and the conditioned air flows from the face blower outlet 2c (2d) and the foot blower outlet. Blows out simultaneously to the passenger's upper body and passenger's lower body in the passenger compartment. In the foot mode, the foot air outlet is fully opened at the air outlet switching door (not shown), and the conditioned air is mainly blown out from the foot air outlet to the passenger's lower body side.

  Next, an average value of the above-described target blowing temperatures RrTAODr and TAORrPa (hereinafter referred to as a rear seat target average value) is obtained, and based on the rear seat target average value, according to the control map of FIG. As in the case, the blower voltage to be applied to the blower motor 62a is determined (step S126).

  Next, target opening degrees θ3 and θ4 of the air mix doors 65a and 65b are calculated by the following formulas 7 and 8. TeRr is an evaporator temperature signal of the evaporator temperature sensor 87, and Tw is a cooling water temperature signal of the cooling water temperature sensor 82.

θ3 = {(RrTAODr−TeRr) / (Tw−TeRr)} × 100 (%) (Formula 7)
θ4 = {(TAORrPa−TeRr) / (Tw−TeRr)} × 100 (%) (Equation 8)
In Equations 7 and 8, TeRr is an evaporator temperature signal of the evaporator temperature sensor 87, and Tw is a cooling water (hot water) temperature signal of the cooling water temperature sensor 82. θ3 = 0% and θ4 = 0% are maximum cooling positions, and in the rear seat right passage 60c and the rear seat left passage 60d, the total amount of air (cold air) after passing through the evaporator 63 on the rear seat side is the bypass passage 61a. It flows through 61b. Further, θ3 = 100% and θ4 = 100% are maximum heating positions. In the rear seat right passage 60c and the rear seat left passage 60d, the total amount of air (cold air) after passing through the evaporator 63 on the rear seat side is the core heater 64. It flows into and is heated.

  Control signals indicating the blower voltage, target opening degrees θ3, θ4, the inside / outside air switching mode, and the blowing mode determined as described above are output to the blower motor 62a and the servomotors 650a, 650b, 660a, 660b, etc. 62, the operation of the air mix doors 65a and 65b and the outlet switching doors 66a and 66b is controlled (step S128).

  Thereafter, the air conditioning control content of the air conditioning zone 1c by the rear seat air conditioning unit 6 is applied. Then, when a certain period of time elapses in step S129, the process returns to step S121, and the above air conditioning control process (steps S121, S122, S123, S125) is performed. S129) is repeated. By repeating such 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.

  The IR sensors 70a and 70b of the present embodiment are sensors for detecting the surface temperatures of the right air-conditioning zone 1c on the right rear seat and the air-conditioning zone 1d on the left rear seat, and these sensors 70a and 70b It is installed in the rear seat TV unit 100 provided on the ceiling.

  Therefore, since the IR sensors 70a and 70b can be arranged below the ceiling without only the IR sensors 70a and 70b being conspicuous, the design is impaired by the arrangement of the IR sensors 70a and 70b while ensuring a wide field of view. Can be suppressed.

  Here, since the rear seat TV unit 100 is originally installed to be shown to the passenger seated in the rear seat, the rear seat TV unit 100 has an obstacle between the rear seat passenger and the rear seat passenger. It is installed not to enter.

  For this reason, when the surface temperature of the predetermined area of the rear seat occupant is detected by the IR sensors 70a and 70b in a non-contact manner as in the present embodiment, the IR sensors 70a and 70b are connected to the rear seat TV unit 100. By installing, it is possible to prevent an obstacle from entering between the IR sensors 70a and 70b and the rear seat occupant. Therefore, the surface temperature of the predetermined area of the rear seat occupant can be accurately detected by the IR sensors 70a and 70b.

  By the way, when detecting the surface temperature of the rear seat occupant by the IR sensors 70a and 70b, it is necessary to point the IR sensors 70a and 70b toward the rear seat occupant. For this reason, although it is possible to arrange the IR sensors 70a and 70b so as to protrude from the pedestal 110 and direct the IR sensors 70a and 70b toward the rear seat occupant side, only the IR sensors 70a and 70b are conspicuous from the pedestal. .

  Here, according to the present embodiment, since the inclined surface 111a of the pedestal 110 is arranged toward the rear seat occupant side, the IR sensors 70a and 70b are connected to the inclined surface 111a of the pedestal 110 (this inclined surface as described above). By installing the surface 111a on the rear seat side), the IR sensors 70a and 70b can be directed toward the rear seat occupant side without arranging the IR sensors 70a and 70b so as to protrude from the pedestal 110. .

  Furthermore, according to this embodiment, each sensor circuit which performs signal processing on the detection signals of the sensor bodies 76a and 76b of the IR sensors 70a and 70b is provided, and these sensor circuits are mounted on the TV circuit board 150. Since it is not necessary to provide each sensor circuit independently from the TV circuit board 150, the cost can be reduced.

  By the way, when only the IR sensors 70a and 70b are directed toward the rear seat occupant, there is a possibility that the rear seat occupant may give a sense of discomfort to the rear seat occupant such as “seen by the IR sensors 70a and 70b”. .

  Here, the infrared light receiving unit 140 is originally arranged toward the rear seat occupant. For the rear seat occupant accustomed to the infrared light receiving unit 140, the IR sensors 70a and 70b are used as the infrared light receiving unit. If it is added to 140, it is possible to prevent the rear-seat occupant from being given an uncomfortable feeling such as “seen by the IR sensors 70a and 70b”.

(Second Embodiment)
In the above-described embodiment, the example in which the TV circuit board 150 and the sensor circuit boards 74a and 74b are provided independently in the case 111 of the rear seat TV unit 100 has been described. As shown in FIG. 13, the sensor circuit boards 74a and 74b are mounted on a part of the TV circuit board 150 so that the TV circuit board 150 and the sensor circuit boards 74a and 74b are integrated. Also good.

  Here, the TV circuit board 150 and the sensor bodies 76a and 76b are connected by a flexible board. In FIG. 13, reference numeral 151 denotes a portion on the TV circuit board 150 where the sensor processing circuit is mounted.

(Other embodiments)
In each of the above-described embodiments, the example in which the air conditioning control of the front seat air conditioning zones 1a and 1b is performed without using the surface temperature of the front seat occupant, that is, the driver and the passenger seat occupant has been described. Similarly to the seat side, in the left and right rows of the front seats, the surface temperatures of the right and left front seat passengers, that is, the driver and passenger seat passengers, are detected by the right and left IR sensors 70a and 70b. Depending on the surface temperature of the front seat occupant, the air conditioning zones 1a and 1b on the right and left sides of the front seat may be controlled independently.

  In each of the above-described embodiments, as the IR sensors 70a and 70b, an example in which a thermopile detection element that detects an electromotive force change corresponding to a change in the amount of input infrared rays as a temperature change has been described, but instead, Quantum detection element that converts infrared energy directly into an electrical signal, pyroelectric detection element that uses self-polarization due to temperature changes corresponding to changes in the amount of infrared light, or temperature changes corresponding to changes in the amount of infrared light A bolometer-type detection element that utilizes a change in resistance value due to the above may be used.

  In each of the above-described embodiments, the example in which the rear-seat television unit 100 is used as the rear-seat monitor unit has been described. However, instead of this, a dedicated monitor for displaying a DVD, a video, or the like may be used. .

  Furthermore, in carrying out the present invention, a support structure that supports the orientation of the sensor bodies 76a and 76b in the IR sensors 70a and 70b in a variable manner may be employed.

  According to this, the orientation of the temperature detection surface of the IR sensors 70a and 70b becomes variable, and the orientation of the temperature detection surface is adjusted even if the distance between the IR sensors 70a and 70b and the rear seat occupant (the detection target) changes. By doing so, the surface temperature of the rear seat occupant can be detected well.

It is a plane outline figure showing the blower outlet arrangement state of the air-conditioner for vehicles by one embodiment of the air-conditioner for vehicles concerning the present invention. It is a typical lineblock diagram of the whole vehicle air-conditioner by one embodiment of the present invention. It is a figure which shows arrangement | positioning of IR sensor of FIG. It is a figure which shows arrangement | positioning of IR sensor of FIG. It is a figure which shows the IR sensor of FIG. It is a figure which shows the specific structure of IR sensor of FIG. It is a figure which shows the detection range of IR sensor of FIG. It is a flowchart which shows the air-conditioning control process by the air-conditioner ECU of FIG. It is a figure which shows the control map for determining inside / outside air mode in the air-conditioning control processing of FIG. It is a figure which shows the control map for determining a blower outlet mode in the air-conditioning control process of FIG. It is a figure which shows the control map for determining a blower voltage in the air-conditioning control process of FIG. 8 is a diagram showing a control map used for calculation of the target blowing temperature in the control process. It is a schematic diagram which shows the television unit for backseats concerning 2nd Embodiment of this invention.

Explanation of symbols

1c: rear seat right air conditioning zone, 1d rear seat left air conditioning zone,
6 ... Rear seat air conditioning system, 8 ... Air conditioner ECU, 70a, 70b ... IR sensor,
11a, 12a ... display. 100: TV unit for rear seats.

Claims (8)

A display panel (120) that displays toward the rear seat side of the vehicle interior, and is provided so as to protrude below the ceiling in the vehicle interior to support the display panel, and the corner portion faces the rear seat side. Applied to a vehicle provided with a rear seat monitor unit (100) provided with a pedestal (10) provided with an inclined surface (111a) formed by
A vehicle temperature detection device including a non-contact temperature sensor (70a, 70b) for detecting a surface temperature of a predetermined region of a rear seat side in a vehicle interior in a non-contact manner,
The non-contact temperature sensor is installed on the inclined surface of the pedestal,
The rear seat monitor unit has a monitor circuit board (74a, 74b) provided with an electronic circuit for displaying an image on the display panel,
The non-contact temperature sensors (70a, 70b) include a sensor main body (74a, 74b) for detecting the surface temperature of the predetermined area on the rear seat side, and a sensor circuit for signal processing a detection signal output from the sensor main body. Is provided,
The vehicle temperature detecting device , wherein the sensor circuit is mounted on the monitor circuit boards (74a, 74b) . The rear seat monitor unit is provided with a light receiving portion (140) for receiving light emitted from a remote control terminal,
The vehicle temperature detection device according to claim 1 , wherein the non-contact temperature sensor is provided in the light receiving unit in the rear seat monitor unit. The non-contact temperature sensor for a vehicle An assembly as claimed in claim 1 or 2, characterized in that the orientation of the temperature detection surface becomes variable. The vehicle temperature detection device according to any one of claims 1 to 3 , wherein the rear seat monitor unit is a television unit. A display panel (120) that displays toward the rear seat side of the vehicle interior, and is provided so as to protrude below the ceiling in the vehicle interior to support the display panel, and the corner portion faces the rear seat side. Applied to a vehicle provided with a rear seat monitor unit (100) provided with a pedestal (10) provided with an inclined surface (111a) formed by
Air conditioning means (6) for air conditioning the vehicle interior;
Non-contact temperature sensors (70a, 70b) for detecting the surface temperature of the predetermined area on the rear seat side in the vehicle compartment in a non-contact manner;
A vehicle air conditioner comprising: control means (8) for controlling the air conditioning means based on a temperature detected by the non-contact temperature sensor;
The non-contact temperature sensor is installed on the inclined surface of the pedestal,
The rear seat monitor unit has a monitor circuit board (74a, 74b) provided with an electronic circuit for displaying an image on the display panel,
The non-contact temperature sensors (70a, 70b) include a sensor main body (74a, 74b) for detecting the surface temperature of the predetermined area on the rear seat side, and a sensor circuit for signal processing a detection signal output from the sensor main body. Is provided,
The vehicle air conditioner , wherein the sensor circuit is mounted on the monitor circuit board (74a, 74b) . The rear seat monitor unit is provided with a light receiving portion (140) for receiving light emitted from a remote control terminal,
6. The vehicle air conditioner according to claim 5 , wherein the non-contact temperature sensor is provided in the light receiving unit in the rear seat monitor unit. The vehicular air conditioner according to claim 5 or 6 , wherein the non-contact temperature sensor has a variable temperature detection surface. The vehicular air conditioning apparatus according to any one of claims 5 to 7 , wherein the rear seat monitor unit is a television unit.

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