JPH06293209A - Air-conditioner for vehicle - Google Patents

Abstract

PURPOSE:To balance right and left heat quantity given to crew in view of the comfortableness and intend the energy saving by detecting the presence of the crew at a position where radiation heat is given from radiation panels, and increasing the air conditioning capacity of the radiation panel at a position where the crew do not sit than that of the radiation panel at a position where the person sits. CONSTITUTION:An inner panel of right and left doors 60 and 61 at a front seat side is formed of a heating and cooling source 64 and radiation panels 62 and 63 on the surface of which radiation surface temperature sensors 41 and 42 are provided. Also crew sensor 66 such as a pressure switch, for detecting the presence of crew is installed at a front passenger seat 65, and the presence or absence of crew is judged by the on/off signal of an ignition switch at a driver's seat 67. When it is detected that any person does not sit on the front passenger seat 65, the air-conditioning capacity of the radiation panel 62 is increased than that of the radiation panel 63. Thus the heat quantity given to the crew can be always balanced on right and left sides for comfortable energy saved air conditioning.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner having a radiation panel provided on the inner surface of a door, for example, in addition to an air conditioning unit which blows out temperature-controlled air into the passenger compartment.

[0002]

2. Description of the Related Art In recent automobiles, for example, as described in Japanese Patent Application Laid-Open No. 3-224818, air-conditioning units (air conditioners) are used for cooling and heating, for example, a radiation panel (thermoelectric conversion device) provided on the inner surface of a door. ) Has been designed to help. As a result, there is an advantage that efficient cooling and heating becomes possible, and energy saving and fuel efficiency improvement can be realized.

[0003]

By the way, there are many cases where a driver rides alone without a passenger in the passenger seat. Even in such a case, in the above-mentioned conventional configuration, the temperature of the left and right radiation panels is adjusted in the same manner, but the distance between the driver and the left and right radiation panels is left (passenger side) and far right. Since it will be closer on the (driver's seat side), in the case of a single passenger with only the driver, if the left and right radiation panels are adjusted to the same temperature,
The amount of heat that the driver receives is smaller on the left side than on the right side, and the driver may feel that the left side is cold on heating. In other words, if there are people in the passenger seat,
When heating, the body temperature of the passenger in the passenger seat becomes a heat source of about 36 ° C, so the amount of heat received by the driver becomes balanced on the left and right, but when no passenger is on the passenger seat, the passenger seat Since the heat source (person) of about 36 ° C. disappears, the driver feels that the passenger side is cold. Such a situation is the same during cooling.

The present invention has been made in consideration of such circumstances, and an object thereof is to balance the amount of heat received by an occupant between right and left even when a person is not sitting in a side seat, and to radiate the heat. An object of the present invention is to provide a vehicle air conditioner that can realize comfortable energy-saving air conditioning using a panel.

[0005]

In order to achieve the above object, an air conditioner for a vehicle according to the present invention comprises an air conditioner unit for blowing temperature-controlled air into a passenger compartment and radiation panels arranged on both sides of the vehicle. In a system for heating or cooling the interior of a vehicle by controlling the air blown from the air conditioning unit and the surface temperature of the radiation panel, whether a person is sitting in a seat at a position where the panel receives radiation heat from the radiation panel. When the passenger detection means for detecting whether or not a seat not occupied by a person is detected by this passenger detection means, the air conditioning capacity of the radiation panel on the side on which the person is not sitting is determined by the radiation panel on the side on which the person is sitting. It is configured to include a correction unit that performs correction so as to increase the air conditioning capacity.

[0006]

According to the above construction, the occupant detecting means detects whether or not a person is sitting on the seat at the position where the radiant heat is received from the radiant panel, and if the seat not occupied by the person is detected, the correction is made. By the means, the air conditioning capacity of the radiation panel on the side where the person is not seated is corrected to be higher than the air conditioning capacity of the radiation panel on the side where the person is seated. This allows
The surface temperature of the radiant panel on the side where no person is sitting is adjusted to be higher than the surface temperature of the radiant panel on the side where a person is sitting during heating (or lower during cooling), and the occupant receives the radiation panel. Balance the heat on the left and right.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
It will be described based on. First, the configuration of the air conditioning unit 21 will be described with reference to FIG. At the upstream side of the blower duct 22, an outside air intake port 23 for taking in air (outside air) outside the vehicle compartment.
a and 23b, and inside air suction ports 24a and 24b for sucking air (inside air) in the passenger compartment are provided.
The mixing ratio of the inside / outside air sucked from a, 23b, 24a, 24b is switched by the inside / outside air dampers 25a, 25b. A blower 26 is provided in the blower duct 22, and an evaporator 28, an air mix damper 29, and a heater core 30 that circulates engine cooling water, which constitutes a refrigeration cycle (not shown), are provided downstream of the blower 26. Has been. The heater core 30 is adjusted by adjusting the opening of the air mix damper 29.
By adjusting the mixing ratio of the air passing through and the air not passing through, the temperature of the blowing air is adjusted. Then, on the downstream side of the blower duct 22, a DEF outlet 31 that blows wind toward the windshield of the automobile, a FACE outlet 32 that blows wind toward the upper body of the occupant, and a wind toward the feet of the occupant. A FOOT outlet 33 is provided to blow out, and dampers 34 to 36 are provided at these outlets 31 to 33, respectively.

The air conditioning unit 21 constructed as described above
Are controlled by an electronic control unit (hereinafter referred to as “ECU”) 37. The ECU 37 includes an inside air temperature sensor 38 and an outside air temperature sensor 3 for detecting environmental conditions.
9. A detection signal T from a solar radiation sensor 40 that detects the amount of solar radiation and left and right radiation surface temperature sensors 41 and 42 described below, respectively.
While r, Tam, Ts, Tw1 ', Tw2' are input,
The vehicle speed signal V is input from the vehicle speed sensor 57. Further, the ECU 37 includes an instrument panel 43 (see FIG.
An operation signal is input from the air conditioner operation panel 44 provided in the central portion of (see).

As shown in FIG. 4, the air conditioner operation panel 44 has an A / C switch 48 for turning on / off the air conditioning operation, and an AUTO for switching the operation mode between automatic and manual.
Switch 49 and blowout mode to "FACE", "B /
L ”,“ FOOT ”, and“ DEF ”, the four blowout mode changeover switches 50 to 53, and the intake mode changeover switch 5 that changes the intake mode to the outside air intake / inside air circulation.
4, a thermal sensation level setting switch 55 for manually setting the thermal sensation level S that is the target value of the air conditioning control, and a thermal sensation level display section 56 for displaying the thermal sensation level S that has been set.

The temperature sensation level S set by the temperature sensation level setting switch 55 is, for example, as shown in FIG.
For example, if the occupant feels "cold", the warmth level S
Is set to "2", and the warm feeling level S is set to "-4" when "warm" is felt. In the present embodiment, the thermal sensation level setting switch 55 is configured by a seesaw-type push switch, and the thermal sensation level S is decreased by one step each time the left "cold" portion is pushed, and the right sensation "S" is set. Each time the "warm" portion is pushed, the warmth sensation level S is increased by one step. In the initial state before operating the temperature sensation level setting switch 55, the temperature sensation level S is automatically set to "0". In addition, the warmth level display section 56 displays 11 levels of warmth level S.
Corresponding to, the light emitting elements 56a are arranged in a horizontal row, and the setting state of the temperature sensation level S is displayed depending on the position of the light emitting element 56a that is turned on.

On the other hand, as shown in FIG. 2 and FIG. 3, the inner panels of the left and right doors 60, 61 on the front seat side are constructed as radiation panels 62, 63 for radiating radiant heat, respectively, and the back surface thereof has thermoelectric power. A heat / cooling source 64 composed of a conversion device or the like is provided. Each radiation panel 62,
Radiation surface temperature Tw1 ′, 63 on the radiation surface (surface) of 63, respectively.
Radiation surface temperature sensors 41 and 42 for detecting Tw2 'are provided. Further, in the passenger seat 65, an occupant sensor 66 which is an occupant detecting means for detecting whether or not a person is sitting in the seat.
Is provided. The occupant sensor 66 is composed of, for example, a pressure switch. On the other hand, the ECU 37 determines whether or not a person is sitting in the driver's seat 67 based on an ON / OFF signal of an ignition switch (hereinafter referred to as “IG switch”) 68 (see FIG. 6).
This is because the driver is sitting in the driver's seat 67 when the ignition switch 68 is turned on.

The above-mentioned ECU 37 is mainly composed of a microcomputer and has a built-in ROM (not shown).
1 stores the control program shown in FIG. The ECU 37 executes the control program shown in FIG. 1 so that when the occupant sensor 66 detects that no person is sitting in the passenger seat 65, the radiation panel on the passenger seat 65 side (the side on which no person is sitting) is radiated. 62 air conditioning capacity
It functions as a correction unit that performs correction so as to increase the air conditioning capacity of the radiation panel 63 on the side (the side where the person is sitting).

The control contents of the ECU 37 will be described below with reference to the flowchart of FIG. First, in step 101, the temperature sensation level S set by the temperature sensation level setting switch 55 is read, and the inside air temperature sensor 44 is read.
The temperature Tr of the air inside the vehicle (inside air) detected by the air and the air outside the vehicle detected by the outside air temperature sensor 45 (outside air)
Temperature Tam and the amount of solar radiation T detected by the solar radiation sensor 46
s, the output signal of the occupant sensor 66, the vehicle speed signal V from the vehicle speed sensor 57, and the radiation surface temperatures Tw of the left and right radiation panels 62 and 63 detected by the radiation surface temperature sensors 41 and 42.
Read 1 ', Tw2'.

Next, in step 102, the radiation panel 6
2, 63, the set temperature Tset 'in the vehicle interior when off is obtained from the relationship in FIG. For example, in FIG. 7, the warmness level S =
When it is 0, Tset '= T0, and the temperature level S =
When it is +2, Tset '= T + 2, and the temperature sensation level S
= -2, Tset '= T-2.

Thereafter, in step 103, the radiation panel 6
The target outlet air temperature Tao 'of the air conditioning unit 21 when the air conditioners 2, 63 are off is calculated by the following equation (1). Tao = Kset.Tset'-Kr.Tr-Kam.Tam-Ks.Ts-C (1) Here, Tr is the inside air temperature detected by the inside air temperature sensor 38, and Tam is detected by the outside air temperature sensor 39. Outside temperature, Ts is the amount of solar radiation detected by the solar radiation sensor 40, Kse
t, Kr, Kam, Ks are coefficients, and C is a constant.

Next, in step 104, the radiation panel 6
When 2, 63 are turned off, the required heat quantity Qao for setting the inside air temperature Tr in the vehicle compartment to the vehicle interior set temperature Tset 'is given by the following (2).
Calculate by formula. Qao = Cp * [gamma] * Va * (Tao'-Tr) (2) where Cp is the specific heat of air at constant pressure, γ is the specific weight of air, and V is
a is the blowing air volume. Thereafter, in step 105, it is determined whether or not the required heat quantity Qao ≧ 0, and if “YES”, that is, Qao ≧ 0, the heating mode is set, and the routine proceeds to step 106.

In this step 106, the target radiation surface temperature Twi (the surface temperature of the radiation panels 62, 63) is determined so that the energy can be saved most (the energy saving degree ε is maximized). Here, the energy saving degree ε is obtained by the following equation (3). [epsilon] = (Qr-Qp) / Qao (3) Here, Qr is the saving of the air conditioning unit 21 obtained by the decrease ΔT (see FIG. 10) in the vehicle interior preset temperature due to the heating effect of the radiation panels 62, 63. Energy quantity, Qp
Is the input power of the radiation panels 62, 63 required to bring the surface temperature of the radiation panels 62, 63 to the target radiation surface temperature Twi. Qao is a heat quantity required to bring the inside air temperature Tr in the passenger compartment to the passenger compartment set temperature Tset 'when the radiation panels 62 and 63 are off, and is calculated by the above-mentioned equation (2).

By the way, the energy saving amount Qr of the air conditioning unit 21 is influenced by the outside air temperature Tam and the vehicle speed V, and the input power Qp of the radiation panels 62, 63 is influenced by the inside air temperature Tr, the outside air temperature Tam and the vehicle speed V. Since the required heat quantity Qao is affected by the outside air temperature Tam and the vehicle speed V, the energy saving degree ε changes depending on the vehicle structure, but it is as shown in FIG. 8 as an example. In FIG. 8, the outside air temperature Tam =-
The energy saving degree ε at 10 ° C is expressed as the vehicle speed V = 0 km /
h, 20 km / h, 40 km / h, 60 km / h, 80
The km / h is indicated by a solid line, and the input electric energy Qp of the radiation panels 62 and 63 is represented by the outside air temperature Tam = -10 ° C, -8 ° C,
The dotted line indicates −5 ° C., −3 ° C., and 0 ° C.
As described above, the target radiation surface temperature Twi is determined as the temperature at which the energy saving degree ε is maximized.
When 80 km / h, Twi = T1 is determined and 60 k
When m / h, Twi = T2 is determined and 40 km / h
In case of, Twi = T3 is determined, in case of 20 km / h, Twi = T4 is determined, and in case of 0 km / h, Twi = T3
= T5 is determined.

After the target radiation surface temperature Twi is determined as described above, it is necessary in step 107 to achieve the target radiation surface temperature Twi from the characteristic data of FIG. 9 according to the outside air temperature Tam and the vehicle speed V. The input power Qp of the radiation panels 62 and 63 is calculated.

On the other hand, if "NO" in the step 105, the cooling mode is set, the process proceeds to the step 108, and the target radiation surface temperature Twi is set so that the energy saving degree ε is maximized as in the heating described above. Decide (step 108),
Input power Qp of the radiation panels 62, 63 required to achieve the target radiation surface temperature Twi is obtained (step 10).
9).

As described above, in both heating and cooling, the target radiation surface temperature Twi and the input power Qp of the radiation panels 62 and 63 are set.
After determining, the process proceeds to step 110 and the occupant sensor 6
Based on the output signal of 6, it is determined whether or not the occupant is sitting beside the driver. Since it is not possible for a driver to drive a vehicle without a person sitting in the driver's seat 67, when the ignition switch 68 is turned on, the driver does not drive the driver's seat 6
Considered to be sitting at 7. Step 110 above
If "YES", that is, if the occupant is sitting beside the driver, the left and right radiating panels 6 are balanced because the heat received by the occupants on the other side receives heat from each other to balance the heat received on the left and right of the occupants.
It is not necessary to correct the target radiation surface temperatures Tw1 and Tw2 of 2,63. Therefore, in this case, in step 111, Tw1
= Tw2 (= Twi) is set.

On the other hand, in step 110, "NO",
That is, when the occupant is not sitting beside the driver, for example, the driver feels that the left side (passenger seat 65 side) is cold during heating. The surface temperature of the radiation panel 62 on the passenger seat 65 side is the radiation panel 6 on the side on which a person is sitting (driver's seat 67 side).
Correction is made by the following equation (4) so that the temperature becomes higher than the surface temperature of No. 3.

Tw1 = Ts + ψ2 / ψ1 · (Tw2-Ts) (4) Tw1; target radiation surface temperature of the radiation panel 62 on the passenger seat 65 side Tw2; target radiation surface temperature of the radiation panel 63 on the driver's seat 67 side Ts; body surface temperature of the occupant ψ1; angular relationship between the radiation panel 62 on the passenger seat 65 side and the driver (view factor) ψ2; angular relationship between the radiant panel 63 on the driver seat 67 side and the driver ( Form factor) In general, the difference in the amount of radiant heat received by the occupant from the left and right is determined by the form factors ψ1 and ψ2, so the form factors ψ1 and ψ
By correcting the target radiation surface temperature Tw1 according to the ratio of 2, the amount of heat received by the occupant is balanced on the left and right.

For reference, the above equation (4) is derived as follows. Generally, the total radiant heat quantity QRT received by each occupant is obtained by the following equation.

[0025]

[Equation 1] Qi; radiant heat quantity from radiant surface i (radiant panels 62, 63) αri; radiant heat transfer coefficient of radiant surface i Twi: surface temperature of radiant surface i (target radiant surface temperature) Si; area of radiant surface i ψi; radiant surface In this case, the radiant heat transfer coefficient αri of the left and right radiating surfaces i (radiation panels 62, 63), the body surface temperature Ts of the occupant, and the areas Si of the left and right radiating surfaces i are Since it can be regarded as equal on the left and right,
Radiant heat quantity Q1, Q given to the occupant from the left and right radiating surfaces i
The relationship between the left and right target radiation surface temperatures Tw1 and Tw2 that make 2 equal is derived by solving the following equations (7), (8) and (9), and the aforementioned equation (4) is obtained.

Αr1ψ1 (Ts-Tw1) S1 = αr2ψ2 (Ts-Tw2) S2 (7) αr1 = αr2 (8) S1 = S2 (9) Therefore, the occupant sits beside the driver. If not, the target radiation surface temperature Tw1 on the passenger seat 65 side is corrected to be higher than the target radiation surface temperature Tw2 on the driver's seat 67 side by the equation (4), and Tw1 is Tw2 during cooling. After the correction is made to be lower than that, the process proceeds to step 113, and the target outlet temperature Tao of the air conditioning unit 21 when the radiation panels 62 and 63 are turned on is calculated by the following equation (10). Tao = Kset-Tset-Kr-Tr-Kam-Tam-Ks-Ts-C (10) Here, Tset is the vehicle interior set temperature when the radiation panels 62 and 63 are on, and from the relationship of FIG. Desired. For example, when the temperature level S = 0 is set,
The temperature Tso at the intersection of the straight line of S = 0 and the target radiation surface temperature Twi obtained in step 106 or 108 becomes the vehicle interior set temperature Tset, and similarly, when the temperature sensation level S = + 2, Tset = Ts + 2. When the temperature level S = -2, Tset = Ts-2.

After the target outlet temperature Tao is calculated by the above equation (10), the process proceeds to step 114 and the air conditioning unit 2
The blowout air temperature of No. 1 is controlled to be the target blowout temperature Tao, and the surface temperatures of the left and right radiation panels 62 and 63 are controlled to be the target radiation surface temperatures Tw1 and Tw2, respectively. Thereafter, by returning to step 101 and repeating the above-described processing, the temperature sensation felt by the occupant is adjusted by the temperature sensation level setting switch 55 while appropriately correcting the air conditioning effect of the radiation panels 62, 63 depending on the presence or absence of the occupant in the passenger seat 65. The air conditioning unit 21 and the radiation panel 8 are set so that the set temperature sensation level S is obtained and the energy consumption is minimized.
The operation of 1 is comprehensively controlled.

According to the first embodiment described above, when the occupant is not sitting beside the driver, the target radiation surface temperature Tw1 on the passenger seat 65 side is set to the target radiation surface temperature on the driver seat 67 side during heating. Since the temperature is corrected to be higher than the temperature Tw2 (and lower than the temperature Tw2 during cooling), the amount of heat received by the occupant can always be balanced on the left and right regardless of the presence or absence of the occupant in the passenger seat 65, and the radiation panel It is possible to realize a comfortable energy-saving air conditioning using the.

Moreover, since the target radiation surface temperature Twi (surface temperature of the radiation panels 62 and 63) is determined so as to maximize the energy saving degree ε defined by the equation (3), the energy consumption should be minimized. It is possible to realize maximum energy saving and fuel efficiency improvement. However, in the present invention, the energy saving degree ε
However, the target radiation surface temperature Twi may be set to the most comfortable temperature for the occupant within the range where the energy saving degree ε> 0 in FIG. If the energy saving degree ε> 0, the energy saving effect can be obtained.

If the target radiation surface temperature Twi is set too high, the occupant's face will be hot and will feel discomfort. Therefore, the upper limit temperature of the target radiation surface temperature Twi is set to 40 to 50 ° C., for example. The target radiation surface temperature Twi may be set within the range below the upper limit temperature.

In the first embodiment, the radiation panels 62, 6 are
Although a thermoelectric conversion device was used as the heat generation / cooling source 64 of FIG.
It may be guided to within 0,61.

In the first embodiment, the radiation panel 62,
I tried to turn on 63 when cooling, but the radiation panel 6
It is also possible to turn on the switches 2, 63 only during heating and turn them off during cooling. This is embodied in the second embodiment of the present invention shown in FIG. In this second embodiment,
In step 105, “NO”, that is, the cooling mode (Qao <
If it is determined to be 0), the process proceeds to step 115 to turn off the radiation panels 62 and 63. After this, the previous step 1
The target outlet temperature Tao 'when the radiation panels 62 and 63 are turned off determined in 03 is set to the actual target outlet temperature Tao (step 116), the air conditioning unit 21 is controlled (step 117), and then the process returns to step 101. The same processing as in the first embodiment is repeated.

In the second embodiment, the radiation panel 6 is used.
Since 2, 63 are not used during cooling, the radiation panel 62,
As a heat source on the back surface of 63, a sheet heater, a heat pipe,
A hot water pipe or the like may be provided.

In the first and second embodiments described above, the inner panels of the left and right doors 60 and 61 on the front seat side are the radiation panels 6.
However, the inner panels of the left and right doors on the rear seat side may be radiation panels. In this case, occupant sensors (occupant detection means) are provided on the left and right sides of the rear seat, and the surface temperature of the radiant panel (radiant surface temperature) depends on the presence or absence of the occupant in the rear seat.
Should be corrected. Alternatively, a transparent heater may be joined to the window glass of the door to use the window glass as a radiation panel. Further, the ceiling surface of the passenger compartment or the windshield may be used as a radiation panel. In this case, the radiation surface temperature may be corrected by dividing the ceiling panel or the radiation panel of the windshield into left and right. However, when the ceiling surface of the passenger compartment or the window glass of the door is used as the radiation panel, the position of the radiation panel is close to the occupant's face, so the upper limit value of the target radiation surface temperature is set to, for example, 3
It is preferable to set the temperature to 0 ° C. and set the target radiation surface temperature within the range of 30 ° C. or less. For reference, FIG. 12 shows the relationship between the positions of various radiation surfaces and the vehicle interior preset temperature Tset.

In the first and second embodiments, the occupant sets the temperature sensation level S by the temperature sensation level setting switch 55, but instead of this, the occupant sets the vehicle interior temperature T.
The set may be manually set by the temperature setting switch. Further, in the first and second embodiments, when the occupant is not sitting beside the driver, the target radiation surface temperatures Tw1 and Tw2 are automatically corrected by the ECU 37 using the equation (4). A switch for adjusting the correction amount is provided so that the occupant can change the correction amount according to his / her preference, and the target radiation surface temperatures Tw1, Tw are adjusted by the correction amount set by this switch.
You may correct w2.

Further, in the above embodiment, the temperature control of the radiation panels 62 and 63 and the blowout air control from the air conditioning unit 21 are automatically controlled in association with each other according to the set value of the temperature sensation level setting switch 55. However, each of them may be independently controlled for the purpose of matching the temperature feeling of the occupant.

For example, while the AUTO switch 49 is turned on, the radiation panel and the blown air are controlled in association with each other. Then, when the AUTO switch 49 is turned off, the temperatures of the radiation panels 62 and 63 are set to a constant temperature (the temperature immediately before the AUTO switch 49 is turned off), and the blowout air control is determined by the set value of the temperature sensation level setting switch 55. Control at the target outlet temperature. Then, set the IG switch 68 to OF
Then, when the IG switch 68 is turned on again, the radiation panels 62 and 63 and the blowing air are controlled in association with each other.
By doing so, when the filling panels do not meet one's preference when the radiation panels 62 and 63 and the blowout air are controlled in association with each other, the AUTO switch 49 is turned off and the thermal sensation level setting switch 55 is operated. Depending on the feeling, the air conditioning is performed.

In addition, the present invention is not limited to the above embodiments, and for example, as the occupant detecting means, a switch for detecting the wearing of the seat belt may be used instead of the occupant sensor such as the pressure switch. It goes without saying that various modifications can be made without departing from the spirit of the invention, such as the configuration of the air conditioning unit 21 may be changed as appropriate.

[0039]

As is apparent from the above description, according to the present invention, when a seat not occupied by a person is detected,
Since the air conditioning capacity of the radiation panel on the side where the person is not seated is corrected to be higher than the air conditioning capacity of the radiation panel on the side where the person is seated, regardless of whether or not other occupants are sitting sideways, The amount of heat received by the occupant can be balanced on the left and right, and comfortable energy-saving air conditioning using a radiation panel can be realized.

[Brief description of drawings]

FIG. 1 is a flowchart showing a control flow of a first embodiment of the present invention.

FIG. 2 is a plan view showing a front seat side in a vehicle interior.

FIG. 3 is a view of the front door of the car as seen from the inside.

FIG. 4 is a front view of an air conditioner operation panel.

FIG. 5 is a diagram showing a relationship between a warmth level S and a warmth of a passenger.

FIG. 6 is a schematic configuration diagram of an air conditioner.

FIG. 7: Target radiation surface temperature T when S = −2, 0, +2
The figure which shows the relationship between wi and vehicle interior preset temperature Tset

FIG. 8 is a diagram showing a relationship between a target radiation surface temperature Twi and an energy saving degree ε.

FIG. 9 is a diagram showing the relationship between the outside air temperature Tam and the input power Qp of the radiation panel.

FIG. 10 is a diagram illustrating a decrease ΔT in the vehicle interior set temperature Tset due to the use of a radiation panel during heating.

FIG. 11 is a flowchart showing a control flow of the second embodiment of the present invention.

FIG. 12: Positions of various radiation surfaces and vehicle interior set temperature Tset
Diagram showing the relationship with

[Explanation of symbols]

21 ... Air conditioning unit, 22 ... Air duct, 26 ... Blower, 28 ... Evaporator, 29 ... Air mix damper,
30 ... Heater core, 37 ... ECU (correction means), 38 ...
Inside air temperature sensor, 39 ... Outside air temperature sensor, 40 ... Solar radiation sensor, 41 ... Left radiation surface temperature sensor, 42 ... Right radiation surface temperature sensor, 55 ... Warmness level setting switch, 56 ... Warmness level display section, 57 ... Vehicle speed Sensors, 60, 61 ... Doors, 6
2 ... Left radiation panel, 63 ... Right radiation panel, 64 ... Heat generation
Cooling source, 65 ... Passenger seat, 66 ... Occupant sensor (occupant detection means), 67 ... Driver's seat.

Claims (1)

[Claims] 1. An air conditioning unit for blowing temperature-controlled air into a passenger compartment, and radiation panels respectively arranged on both sides of the vehicle. The wind blowing from the air conditioning unit and the surface temperature of the radiation panel are controlled. In a vehicle air conditioner that heats or cools the interior of the vehicle, an occupant detection unit that detects whether or not a person is seated at a position where the radiant heat is received from the radiant panel, and a person is seated by the occupant detection unit. When a non-seat is detected, a correction means is provided to correct the air conditioning capacity of the radiation panel on the side where no person is sitting so as to be higher than the air conditioning capacity of the radiation panel on the side where a person is sitting. A vehicle air conditioner.