JP2002144849A - Vehicular air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular air conditioner capable of comfortable cabin inside air conditioning and seat air conditioning suited to a temperature feeling of an occupant regardless of a season. SOLUTION: This vehicular air conditioner has an air conditioning unit 21 for blowing off an air conditioning wind in a cabin, a seat air conditioning unit 4 for blowing off the air conditioning wind to a seat, and an ECU 37 for controlling the air conditioning unit 21. This control device 37 has an air conditioning control for controlling the air conditioning unit 21 by a controlled variable determined on the basis of a target blowoff temperature TAO by determining the target blowoff temperature TAO from detecting values Tr, Tam and Ts and a preset temperature Tset of a heat load and a seat air conditioning control for controlling the seat air conditioning unit 4. This seat air conditioning control is characterized by being arranged so as to have a first air conditioning control 154 for deciding the controlled variable when the cabin inside air conditioning is put in a stable state and a second air conditioning control 151 for deciding the controlled variable when the cabin inside air conditioning is put in a transitional state.

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 provided with a seat air conditioner, in addition to an air conditioner unit for blowing a temperature-controlled conditioned air into a vehicle cabin.

[0002]

2. Description of the Related Art Conventionally, as this type of vehicle air conditioner,
For example, there is one disclosed in Japanese Patent Application Laid-Open No. H10-297243. In the prior art described in this publication, a seat air conditioner and an air conditioner of a vehicle are provided, and a seat temperature or an operation state of the seat air conditioner or setting information is provided. A control unit that corrects the operating state or setting information of the air conditioner based on the set temperature of the seat air conditioner so that the air conditioner can be operated as the set temperature of the air conditioner.

Conversely, a control unit is provided for correcting the operating condition or setting information of the seat air conditioner based on the operating condition or setting information of the air conditioner. The air conditioner can be operated as the set temperature of the device. Specifically, one set information (for example, set temperature) of both devices
Based on the above, both devices perform air-conditioning operation in the same operation state, and when the other one of the setting information (for example, setting temperature) of both devices is changed, the previous setting information is changed and the air-conditioning operation is performed. It is.

[0004]

However, when the seat air conditioner is operated at a large capacity based on the set temperature of the air conditioner when the air conditioning load of the vehicle air conditioner is large and the vehicle air conditioning capacity is high, an excessive amount of air in a stable state occurs. Air-conditioning capacity is provided, and there is a problem that the seat is over-cooled in summer and over-heated in winter, deviating from the heat state of the seat desired by the occupant and giving a feeling of discomfort.

[0005] In particular, in the seat air-conditioning system in which warm air or cold air is blown to the seat by taking in the air-conditioned air of the air-conditioning system, the above-mentioned problem is remarkable. Levels can be too cold or too warm and can cause discomfort. As a result, the cooling operation in the summer may cause back pain and fatigue due to excessive cooling, and the heating operation in the winter may cause hot flashes on the face due to warm air. This is a problem that occurs because the seat air-conditioning system performs air-conditioning of the contact surface with the occupant seated in the seat.

In the prior art, when the setting information of the seat air conditioner is changed from the seat air conditioner side, the setting information on the air conditioner side can also be changed. This allows
Another occupant seated in a seat to which the seat air conditioner is not attached has a problem in that the air conditioner does not have a desired air conditioning state, and therefore, discomfort occurs.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention has been made in view of the above points, and provides a vehicle air conditioner capable of performing comfortable vehicle air conditioning and seat air conditioning suitable for a passenger's warmth regardless of the season. Is to do.

[0008]

In order to achieve the above object, the technical means described in claims 1 to 15 is adopted.

That is, according to the first aspect of the present invention, the air conditioning unit (21) for blowing the conditioned air having the temperature adjusted into the vehicle interior.
And a seat air-conditioning unit (4) for blowing air-conditioning air to a seat where an occupant sits, and a detection value (Tr, Ta) of a heat load of the vehicle.
m, Ts), and a control device (37) for controlling the air conditioning unit (21) and the seat air conditioning unit (4). The control device (37) controls the detected value (Tr, Tam) of the heat load of the vehicle. , Ts) and a target outlet temperature (TAO) into the vehicle cabin based on the set temperature (53) set by the occupant.
Air temperature control means for controlling the air conditioning unit (21) according to the first control amount obtained based on the target air temperature (TAO), and a target air temperature (TAO) Seat air-conditioning control means for controlling the seat air-conditioning unit (4) in accordance with the second control amount obtained based on the air conditioner. The first to determine the control amount of 2
And a second seat air-conditioning control means (151) for determining a second control amount when the vehicle interior air-conditioning is in a transient state.

According to the first aspect of the present invention, the control device (37) for controlling the air conditioning unit (21) and the seat air conditioning unit (4) controls the air conditioning unit (21) with the first control amount. Means and a seat air-conditioning control means for controlling the seat air-conditioning unit (4) with a second control amount, and the second control means is provided when the vehicle interior air-conditioning is in a stable state.
First seat air-conditioning control means (154) determined by the control amount
And the second seat air-conditioning control means (151) determined by the second control amount when the vehicle interior air-conditioning is in a transition state, thereby controlling the air-conditioning unit (21) of the vehicle interior air-conditioning, It is possible to control the seat air conditioning unit (4), which is a contact surface air conditioning.

For example, even when the vehicle interior air-conditioning reaches a stable state, when the sunshine is strong and the heat load of the vehicle is large, such as under the scorching sun, the air-conditioning control means of the air-conditioning unit (21) lowers the blow-out temperature of the conditioned air to reduce the air volume. However, in such a case, the seat air conditioning unit (4) gives the occupant an uncomfortable feeling due to overcooling.

Similarly, when the heat load of the vehicle during heating is large, the air-conditioning control means of the air-conditioning unit (21) performs the first control such as increasing the airflow by increasing the temperature of the conditioned air. In this case, the seat air-conditioning unit (4) gives an occupant an uncomfortable feeling due to overheating.

Therefore, the second temperature, which is obtained from the evaluation based on the sensation level of the occupant, is obtained from the temperature and amount of air blown out to the seat.
First air-conditioning control means using the control amount of (154)
By performing another control in the above, conventional supercooling and overheating can be prevented. As a result, the comfort of the vehicle interior air conditioning and the seat air conditioning can be improved.

Next, when the vehicle interior air conditioner is in a transitional state where the surface temperature of the seat is high and rapid cooling is required, such as when riding after parking for a while under the scorching sun, the blowing temperature and air volume are maximized. Rapid cooling can be achieved by controlling the second seat air-conditioning control means (151) using the second control amount of the maximum air flow by lowering the blow-out temperature by exerting the air-conditioning ability. This second seat air conditioning control means (15
In 1), the air-conditioning control means of the air-conditioning unit (21) performs the same control, so that the immediate effect of the vehicle interior air-conditioning and the seat air-conditioning can be improved.

Further, the control unit (37) determines the second control amount of the seat air-conditioning control means by detecting the detected heat load (Tr, Ta) of the vehicle shared with the air-conditioning unit (21).
m, Ts), the set temperature (53), the target outlet temperature calculating means (130), and the target outlet temperature (TAO), so that they can be shared with the components of the air conditioning unit (21) without providing separate components and the like. It is possible to control the seat air conditioning unit (4) with high accuracy. As a result, the product cost of the seat air conditioning unit (4) can be reduced.

According to the second aspect of the present invention, the second control amount of the first seat air-conditioning control means (154) is determined by the target blowing temperature (T
AO) is equal to or less than the first predetermined value and the target outlet temperature (TA)
O) is a control amount for decreasing the air flow with respect to the first control amount of the air conditioning control means, which is a control amount for increasing the air flow when the second predetermined value or more.

According to the second aspect of the present invention, the first control amount of the air conditioning unit (21) is, for example, the target outlet temperature (TA).
When O) is equal to or less than the first predetermined value, that is, in the cooling operation, if there is a gap from the set temperature (Tset), control is performed to increase the air volume as the blowout temperature is lower. The second control amount of the seat air-conditioning control means (154) is such that when the air volume is controlled at a low air temperature at a high air volume, it causes back pain and fatigue due to excessive cooling. The evaluation based on the warm feeling level is obtained by an experiment, and from the results, it is possible to improve the comfort by eliminating the discomfort of the occupant by controlling the control amount with a lower air flow at a lower blowing temperature.

When the target outlet temperature (TAO) is equal to or higher than the second predetermined value, that is, when there is a gap from the set temperature (Tset) in the heating operation, control is performed such that the air volume increases as the outlet temperature increases. However, the second control amount of the first seat air-conditioning control means (154) is such that when the air volume is controlled at a high air temperature at a high air temperature, the face is hot due to overheating and the knee at a low air volume at a low air temperature. It becomes a factor such as cold, and in order to eliminate this, the air volume corresponding to the blowout temperature was evaluated by an evaluation based on the warmth level and comfort, etc.
As a result, more specifically, the higher the blowout temperature, the lower the amount of airflow is controlled with the control amount to eliminate the discomfort of the occupant, thereby improving the comfort.

Therefore, these second control amounts perform control different from the first control amount of the air conditioning control means.

According to the third aspect of the present invention, the seat air-conditioning unit (4) takes in the conditioned air from the air-conditioning unit (21) and the air from the vehicle interior, and adjusts the mixing ratio of the two. And the first sheet air-conditioning control means (154) switches the switching control means (43) when the target sheet blowing temperature (TAOseat) obtained based on the target blowing temperature (TAO) is equal to or lower than a predetermined blowing temperature. Is controlled to shut off the conditioned air from the air conditioning unit (21) and to take in air from the vehicle interior.

According to the third aspect of the present invention, in the seat air conditioning, contact air conditioning is used, so that the seat air conditioning is affected by the skin temperature of the occupant. Therefore, the relationship between the sheet blowing temperature and the skin temperature is evaluated by a thermal sensation level by an experiment. From the result, the target sheet blowing temperature (TAOseat) obtained based on the target blowing temperature (TAO) is equal to or lower than a predetermined blowing temperature. By controlling the switching control means (43) to shut off the conditioned air at the time of, and taking in air from the vehicle interior, it is possible to prevent overcooling by taking in room air before reaching the uncomfortable skin temperature. Comfortable seat air conditioning can be obtained.

According to the fourth aspect of the present invention, the first seat air conditioning control means (154) controls the seat air conditioning when the inside air temperature (Tr) of the detected values (Tr, Tam, Ts) is lower than a predetermined inside air temperature. The control of the unit (4) is stopped.

According to the fourth aspect of the invention, for example, when the set temperature (53) of the vehicle interior air conditioning is set low and the interior of the vehicle interior has reached a slightly cool area, the room to be taken into the seat air conditioning unit (4). Low air can cause uncomfortable skin temperatures. Therefore, by stopping the control of the seat air conditioning unit (4) when the temperature is equal to or lower than the predetermined inside air temperature, it is possible to prevent overcooling.

According to the fifth aspect of the present invention, the air conditioning unit (21) for blowing the temperature-controlled air-conditioned air into the vehicle interior, the seat air-conditioning unit (4) for blowing the air-conditioned air to the seat where the occupant sits, and the heat load of the vehicle. Detection value (Tr, Tam, T
s) and a control device (37) for controlling the air conditioning unit (21) and the seat air conditioning unit (4) in accordance with the first control amount and the second control amount obtained based on the control amount. ) Are the detected values (Tr, Ta) of the heat load of the vehicle.
m, Ts), the target outlet temperature (TA
O), and a target outlet temperature calculating means (130) for determining a first control amount for controlling the air conditioning unit (21), and a target sheet outlet temperature (S) for the sheet based on the detected values (Tr, Tam, Ts). TAOseat) and a target seat calculating means (140) for determining a second control amount for controlling the seat air-conditioning unit (4). The first target sheet calculating means (15) for determining the second control amount when
4) and a second target seat calculating means (151) for determining a second control amount when the vehicle interior air conditioning is in a transient state.

According to the fifth aspect of the present invention, in the control device (37) according to the first aspect, the air conditioning control means of the air conditioning unit (21) controlled by the first control amount and the control by the second control amount. The seat air-conditioning control means of the seat air-conditioning unit (4) performs the target blowing temperature based on input information of the detected values (Tr, Tam, Ts) of the heat load and the set temperature (53), which are components of the air-conditioning unit (21). Although it was obtained based on the calculating means (130) and the target outlet temperature (TAO), it is not limited to this.
An air conditioning unit (21) controlled by the first control amount includes a target outlet temperature calculating means (130), which is the same as that of the first embodiment,
The seat air-conditioning unit (4) controlled by the control amount of (1) has target sheet calculating means for calculating a target sheet blowing temperature (TAOseat) to the sheet from input information of the detected value (Tr, Tam, Ts) of the heat load. In addition, by having the first target seat calculating means (154) when in a stable state and the second target seat calculating means (151) when in a transient state, the air conditioning unit for vehicle interior air conditioning ( 21)
And the seat air conditioning unit (4), which is a contact surface air conditioner, can be controlled.

According to the sixth aspect of the present invention, the second control amount of the first target sheet calculating means (154) is the target blow temperature (T
AO) is equal to or less than the first predetermined value and the target outlet temperature (TA)
O) is a control amount for decreasing the air flow with respect to the first control amount of the air conditioning control means, which is a control amount for increasing the air flow when the second predetermined value or more.

According to the sixth aspect of the present invention, the second control amount of the first seat air conditioning control means (154) is, as described in the second aspect, equal to the first control amount of the air conditioning control means. By performing different controls, discomfort can be eliminated. That is,
In cooling operation, control is performed with a lower airflow control amount for lower blowing temperatures, and in heating operation, control is performed with a lower airflow control amount for higher blowing temperatures, thereby eliminating discomfort to the occupants. Can be improved.

According to the seventh aspect of the present invention, the seat air conditioning unit (4) takes in the conditioned air from the air conditioning unit (21) and the air from the passenger compartment and controls the switching ratio of the two. And the first target sheet calculating means (154) controls the switching control means (43) based on the second control amount when the target sheet blowing temperature (TAOseat) is equal to or lower than a predetermined blowing temperature. Then, the conditioned air from the air conditioning unit (21) is shut off and air from the vehicle interior is taken in.

According to the seventh aspect of the present invention, the same effect as described in the third aspect can be obtained.

In the eighth aspect of the present invention, the first target sheet calculating means (154) controls the air conditioning of the seat when the inside temperature (Tr) of the detected values (Tr, Tam, Ts) is lower than a predetermined inside temperature. The control amount is a control amount for stopping the control of the unit (4).

According to the eighth aspect of the present invention, the same effect as described in the fourth aspect can be obtained.

According to the ninth aspect of the present invention, the seat air-conditioning unit (4) takes in the conditioned air from the air-conditioning unit (21) and the air from the passenger compartment, and adjusts the mixing ratio of the two. And a control device (37)
Means for controlling the switching control means (43) to mix the conditioned air with the air from the vehicle interior (155)
It is characterized by having.

According to the ninth aspect of the present invention, in the air conditioning control means of the air conditioning unit (21), when the heat load is large, the seat air conditioning unit (4) tends to be overcooled and overheated, and the occupant is uncomfortable. Easy to give. To prevent this, the first seat air-conditioning control means (154) responded, but when the blow-out temperature further decreases or rises, the switching control means (43) takes in the air in the vehicle cabin and adjusts the mixing. By preventing overcooling and overheating, comfort can be improved.

According to the tenth aspect of the present invention, the seat air conditioning unit (4) is connected to the air conditioning unit (21) through the side face opening (321) which is constantly ventilated in the blowing mode of the air conditioning unit (21). It is characterized by taking in the air conditioning style.

According to the tenth aspect of the present invention, the cool / hot air control door (42) and the duct for mixing the cool air and the hot air by taking in the conditioned air from the side face opening (321) which is constantly ventilated. Since parts such as (321a) become unnecessary, the number of parts can be reduced.

In the eleventh aspect, the control device (37)
Has an air-conditioning state determining means (150) for determining whether the vehicle interior air-conditioning is in a stable state or a transient state, and the air-conditioning state determining means (150) has a set temperature (Tset) for obtaining a target outlet temperature (TAO). ) And the vehicle interior temperature (Tr).

According to the eleventh aspect of the present invention, the first seat air conditioning control means (1) for preventing overcooling and overheating.
54) is determined by a stable state discriminant based on the set temperature (Tset) and the vehicle interior temperature (Tr). For example, in the present invention, the stable state discriminant is determined by the set temperature (Tset) and the vehicle temperature. Deviation from room temperature (Tr) (Σ = |
Tset−Tr | ≦ δ), the determination value δ is determined by an arbitrary value obtained through an experiment to determine whether the seat air-conditioning is overcooling or overheating when the vehicle interior temperature (Tr) is stable. By detecting the transition of the vehicle interior temperature (Tr), it is easy to determine whether the vehicle interior air conditioning is in a transient state or a stable state, and to detect and determine whether the vehicle interior temperature (Tr) is stable. As a result, it is possible to prevent over-cooling or over-heating in the seat air conditioning, and to achieve comfortable seat air conditioning.

According to the twelfth and fourteenth aspects,
The control device (37) is an air-conditioning state determination unit (150) that determines whether the vehicle interior air-conditioning is in a stable state or a transient state.
And the air-conditioning state determination means (150) includes a set temperature (Tset) for obtaining a target outlet temperature (TAO);
A seat setting temperature (Sset) and a vehicle interior temperature which are provided in the seat air conditioning operation means (54) for operating the seat air conditioning unit (4) and have a selection range from a warming area to a cooling area, and are set by an occupant. (Tr) and is determined by a stable state discriminant based on (Tr).

According to the twelfth and fourteenth aspects of the present invention, the seat air-conditioning operating means (5
By including the sheet set temperature (Sset) provided in 4), for example, in the present invention, the sheet set temperature (Sset) is added by setting the stable state discriminant to に よ り = | (Tset + Sset) −Tr | ≦ δ. Because of this, in seat air conditioning, since it is a contact surface air conditioning, the influence on the thermal sensation due to individual differences is large, so it is necessary to control the seat air conditioning with a variable width from warming to cooling corresponding to the variation of individual differences. it can.

According to a thirteenth aspect of the present invention, the air-conditioning state judging means (150) changes the judgment value of the stable state discriminant in accordance with a change in the setting of the seat set temperature (Sset).

According to the thirteenth aspect of the present invention, the determination value δ of the above-mentioned stable state discriminant is determined by making an arbitrary value obtained from an experiment constant. By setting the determination value δ to be changed in accordance with the setting change, the variation of the individual difference can be reflected in the stable state discriminant, and the seat air conditioning with a variable width from warm to cool can be controlled.

According to the fifteenth aspect, the control device (37)
The first air-conditioning switching control means (153) that gradually changes from a control amount according to the transient state to a control amount according to the stable state immediately after the vehicle interior air conditioning switches from the transient state to the stable state. It is characterized by having.

According to the fifteenth aspect, the first seat air conditioning control means (154) or the first target seat calculation means (154) and the second seat air conditioning control means (15)
1) or the second target sheet calculating means (151) performs different control with respect to the control amount different from the control amount of the blow-out temperature and the flow rate in the above-described manner. Immediately after the air conditioner is switched to the stable state, the first air conditioning switching control means (153) for controlling the air flow rate to a predetermined level in steps of one level in a certain cycle is used to control the first seat. By shifting to the air conditioning control means (154) or the first target seat calculation means (154), the control amount can be changed without a sense of discomfort, and the occupant is not discomforted.

Note that the reference numerals in parentheses of the above means indicate the correspondence with specific means described in the embodiment described later.

[0045]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 10 show an embodiment in which the present invention is applied to a vehicle air conditioner. First, FIG.
The configuration of the air conditioning unit 21 will be described based on FIG. On the upstream side of the air duct 22, there are provided outside air suction ports 23 a and 23 b for sucking air (outside air) outside the vehicle compartment and inside air suction ports 24 a and 24 b for sucking air (inside air) inside the vehicle compartment. The mixing ratio of the inside and outside air sucked from the ports 23a, 23b, 24a and 24b is switched by the inside and outside air doors 25a and 25b.

A blower 26 is provided in the blower duct 22, and an evaporator 28, an air mix door 29, and engine cooling water constituting a refrigeration cycle (not shown) circulate downstream of the blower 26. A heater core 30 is provided. By adjusting the opening of the air mix door 29, the mixing ratio of air passing through the heater core 30 and air not passing through the heater core 30 is adjusted to adjust the temperature of the conditioned air.

A defroster opening 31 connected through a duct to a defroster outlet (not shown) for blowing conditioned air toward the front glass of the vehicle is provided downstream of the air duct 22, and an upper body of the occupant. A face opening 32 connected through a duct to a face outlet (not shown) that blows conditioned air toward the vehicle and a foot outlet (not shown) that blows conditioned air toward the feet of the occupant through a duct. A foot opening 33 is provided on the upstream side of each of the openings 31, 32, 33.
4, 35 and 36 are provided.

The air conditioning unit 21 configured as described above
Is controlled by an electronic control unit (hereinafter referred to as an ECU) 37. The ECU 37 includes an inside air temperature sensor 38 and an outside air temperature sensor 3 for detecting the heat load of the vehicle.
9. Detection signals Tr, Tam and Ts detected from the solar radiation sensor 40 for detecting the amount of solar radiation are input. Furthermore, this E
An operation signal is input to the CU 37 from an air conditioner operation panel 44 provided at the center of the instrument panel.

As shown in FIG. 2, the air-conditioner operation panel 44 has an A / C switch 48 for turning on / off the air-conditioning operation, an auto switch 49 for switching the operation mode between automatic and manual, and a switch for the air outlet. Five blowout mode changeover switches 50 for manually switching any of face, bilevel, foot, foot defroster, and defroster
An intake mode changeover switch 51 for manually switching the intake mode between outside air suction / inside air circulation, a ventilation changeover switch 52 for manually switching the airflow, and a temperature setting switch 53 for manually setting a set temperature serving as a target value of air conditioning control. Are provided. The auto switch 49 is an operation switch for automatically controlling the operation mode switching of the blowout mode changeover switch 50, the intake mode changeover switch 51, and the blower changeover switch 52.

On the other hand, the seat 3 of the vehicle has a plurality of air outlets 3a in each of the seating portion 3b and the backrest portion 3c.
It has. Then, the seat air conditioning unit 4 supplies hot air, cold air, or air to the air outlet 3a. Each air outlet 3a is provided with a ventilation passage 3 formed inside the seat 3b.
d and a ventilation passage 3e formed inside the backrest 3c.
Are in communication with each other. Each of the ventilation passages 3 d and 3 e is connected to the discharge port 4 of the seat air conditioning unit 4 through an air supply duct 8.
a. In FIG. 1, the sheet 3
Although the structure in which the air supply duct 8 is drawn out from the lower portion of the seat 3 is shown, the air supply duct 8 may be drawn out from the side of the sheet 3. In addition, the seat air conditioning unit 4 is connected to the seat 3b.
May be arranged at the bottom.

The seat air-conditioning unit 4 has an inside air inlet 4b for sucking the air (inside air) inside the vehicle, a cool air inlet 4c, and a warm air inlet 4d upstream of the outlet 4a. . The cool air inlet 4c is communicated with a cool air duct 32a branched from the face opening 32, and is connected to the warm air inlet 4d.
Is a hot air duct 33a branched from the foot outlet 33.
And are communicated.

Further, a cool / hot air control door 42 for controlling cool air or hot air and air blow, an inside air intake port 4b communicating with the vehicle interior, and the inside air are taken in downstream of these intakes 4c and 4d. An adjustable indoor air control door 43;
A blower 41 for feeding to the sheet 3 is provided. Further, the temperature To of the air blown out to the sheet 3 near the discharge port 4a To
Is provided. The control doors 42 and 43 are driven by an actuator such as a servomotor (not shown).

The seat air conditioning unit 4 is buried on both left and right sides of the front left and right seats and the rear seat, so that the occupant of each seat can arbitrarily adjust the operation level of the seat air conditioning unit 4 of the own seat. In addition, for example, a total of four seat air-conditioning operation panels 54 are provided at the inside of the front door and at the center of the rear seat.

As shown in FIG. 3A, a seat temperature setting switch 55 for manually setting the set temperature of the seat air conditioning unit 4 is provided on the seat air conditioning operation panel 54 of each seat.
And a seat air-conditioning operation switch 57 for turning on / off the seat air-conditioning unit 4 and an indoor air switch 5 for driving the above-described indoor air control door 43 to open / close the inside air suction port 4b.
8 are provided.

The seat temperature setting switch 55 is constituted by a rotary dial switch, and
5a and the warming zone 55b, the sheet set temperature Sset
Is to be selected.

In particular, in the seat air conditioning, since the air conditioning is the contact surface air conditioning, there is a large variation in individual differences in the sense of warmth.
The selection range from the cooling zone 55a to the warming zone 55b is represented by an index indicating how much to cool or warm, for example, based on an average temperature of 25 ° C., as shown in FIG. The sensation levels felt by the occupants are ranked, for example, at 11 levels, and are provided in five cooling zones 55 ranging from slightly cool to very cold.
a and a five-stage warming zone 55b from slightly warm to very hot.

Therefore, for example, when the occupant feels "cold", the seat setting temperature Sset is changed to "2", and when the occupant feels "warm", the seat setting temperature Ss
Et can be changed to “−4” to perform detailed seat air-conditioning control.

In the present embodiment, the plurality of seat air conditioning operation panels 54 are connected to the ECU 37.
The operation of the air conditioning unit 21 is controlled in association with the operation of the seat air conditioning unit 4 by an input signal of the seat air conditioning operation panel 54 in which is turned on. Therefore, if the seat air-conditioning operation switch 57 is turned on, the seat air-conditioning unit 4 of the other seat performs the same operation as the seat air-conditioning unit 4 that is turned on first, and therefore accepts the setting change of the seat temperature setting switch 55. Not to be. The indoor air switch 58 is a switch that is activated when the vehicle air is taken into the seat air conditioning unit 4 and blown out to the seat 3. This room air switch 5
When the vehicle 8 is turned on (opened), the room air control door 43 is rotated so as to fully open the room air suction port 4b to take in the vehicle room air.

Next, the above-described ECU 37 is mainly constituted by a microcomputer, and a built-in ROM (not shown) stores a control program shown in FIG. The ECU 37 executes the control program of FIG. 4 to control the blow-out temperature of the air conditioning unit 21 of the vehicle and to set the seat set temperature Sse set by the occupant.
The controller controls the blow-out temperature and air volume of the seat air-conditioning unit 4 so as to conform to t.

Hereinafter, the details of the air conditioning control by the ECU 37 will be described with reference to the flowchart of FIG. First, when the A / C switch 48 of the air-conditioning operation panel 44 and the seat air-conditioning operation switch 57 of the seat air-conditioning operation panel 54 are operated, in step 100, an initialization process for initializing counters and flags used in the subsequent arithmetic processing. Then, the process proceeds to step 110, where the temperature setting switch 53 and the seat temperature setting switch 55 set by the occupant are set.
By reading the input set temperature T ₁ set and the seat set temperature Sset, the inside air temperature sensor 38, the outside air temperature sensor 39, the solar radiation sensor 40, and the seat air outlet temperature sensor 47 detect the inside air temperature T
r, the outside air temperature Tam, the amount of solar radiation Ts, and the sheet blowing temperature To are read.

Next, the routine proceeds to step 120, where the set temperature Tset is calculated from the following equation (1) from the set temperature T ₁ set, the outside air temperature Tam and the solar radiation Ts set by the occupant.

Tset = f (T ₁ set, Tam, Ts) = T ₁ set + ΔTam + ΔTs (1) where ΔTam = (10−Tam) / 20
See FIG. 5A .DELTA.Ts = -Ts / 1000... See FIG. 5B As described above, after calculating the set temperature Tset, the process proceeds to step 130 (target outlet temperature calculating means). Then, a target outlet temperature TAO required to maintain the vehicle interior at the set temperature Tset is calculated by the following equation (2).

TAO = K1 × Tset−K2 × Tr−
K3 × Tam−K4 × Ts + C (2) Here, K1, K2, K3, and K4 are coefficients, and C is a constant.

Thus, the air-conditioning control method such as the operation mode of the conditioned air blown from the air-conditioning unit 21 into the vehicle compartment, the blow-out temperature, the air volume, and the like is determined.

Thus, in step 131, the air conditioning of the air conditioning unit 21 is controlled. Air conditioning unit 2
In step 1, the control doors 34, 35 and 36 are switched based on the calculated target outlet temperature TAO to automatically set the outlet mode and the suction mode of the inside / outside air inlet, and obtain the target opening of the air mix door 29 to obtain the air conditioning. Wind temperature control is performed. In addition, the air conditioner controls the blower 26 so that the conditioned air blown into the vehicle compartment reaches the set temperature Tset by controlling the target blowing temperature TAO and the blowing amount (first control amount) as shown in FIG. It is. Immediately after the operation, when a large cooling and heating capacity is required, air is blown at a large air volume and air conditioning is controlled so as to be in a comfortable area as quickly as possible.
When r approaches the set temperature Tset and the ability is no longer required, the air volume is controlled so as to reduce the air flow, and the air conditioning in the vehicle compartment is performed.

Also, by gradually increasing the air flow from zero in response to the degree of warming of the engine cooling water at the start of winter or the like, warm-up control for eliminating discomfort due to blowing of cool air, and At the time of starting, etc., the delay control (cool down control) for eliminating the discomfort caused by the hot air blowing by starting the air blowing after the evaporator 28 is sufficiently cooled is performed, and then the above-described air conditioning control is performed. It is.

On the other hand, the seat air conditioning unit 4 side proceeds to step 140, and estimates the target seat blowing temperature TAOseat of the seat air conditioning unit 4 based on the target blowing temperature TAO calculated by the above equation (2). This is the sheet set temperature Ss read in step 110.
The target sheet blowing temperature TAOseat is calculated by calculating the heat load of the sheet 3 based on the et, the sheet blowing temperature To, the inside air temperature Tr, and the like, and allowing for a temperature rise or temperature drop. Thereby, the seat blowing temperature of the conditioned air blown from the seat 3 is estimated in association with the air conditioning operation of the air conditioning unit 21 for the vehicle interior (the target blowing temperature TAO).

Then, the process proceeds to step 150 (air condition determining means), and the following stable state determining formula is calculated to determine whether the vehicle interior air-conditioning at that time is in a stable state or a transient state. judge. That is, the difference between the set temperature Tset obtained by the ECU 37 and the inside air temperature Tr (Σ = | Tse
t-Tr |) is determined based on a deviation value of a predetermined time.

For example, the deviation between the set temperature Tset and the inside air temperature Tr is accumulated every four seconds in a four-second cycle to average the dispersion of the set temperature Tset and the detected inside air temperature Tr, and the deviation is accumulated for two minutes (n Is determined from the deviation values of the times and compared with a predetermined value δ. If 判断> δ, it is determined that the state is a transient state, and if Σ ≦ δ, it is determined that the state is a stable state.

The predetermined value δ is an arbitrary value obtained by an experiment to determine whether the seat air conditioner is under cooling or over heating when the inside air temperature Tr is stable.

Here, a specific example of the above-described stable state determination formula will be briefly described for cooling and heating operations. First, during the transient state of the cooling operation, the stable state determination formula is not satisfied because the inside air temperature Tr is high. For example, here, n = 4 times and δ = 20 in order to simplify the calculation, the set temperature Tset is set to 25, and the inside air temperature Tr is 3
In the case of 2, Σ = 28, and Σ> δ, it is determined to be in a transient state. Then, when the inside air temperature Tr decreases and becomes Tr = 30, Σ = 20, and Σ ≦ δ, so that it is determined to be in a stable state.

On the other hand, in the transient state of the heating operation, the stable state determination formula is not satisfied because the inside air temperature Tr is low. For example, when n = 4 and δ = 20, the set temperature Tset is set to 25 and the inside air temperature Tr is set to 17
In this case, Σ = 32, and Σ> δ, it is determined to be in a transient state. Then, when the inside air temperature Tr rises and becomes Tr = 20, Σ = 20, and Σ ≦ δ, so that a stable state is determined.

When it is determined that the air conditioning in the passenger compartment is in the transient state, the process proceeds to step 151 (second seat air conditioning control means).

Here, the second air conditioning control of the seat air conditioning unit 4 is performed. Specifically, as shown in FIG. 7, the air volume control (second control amount) of the blower 41 corresponding to the target sheet outlet temperature TAOseat calculated based on the target outlet temperature TAO, It controls air conditioning of temperature. This air-conditioning control is based on the air volume control A (second air-conditioning control) in the transient state and the air volume control B (first air-conditioning control) in the stable state depending on whether the vehicle interior air-conditioning is in a transient state or a stable state. It is set to perform different air volume control.

The control characteristic A (second air-conditioning control) indicated by the broken line indicates that the target sheet outlet temperature TAO in the transient state
It shows the relationship with the air flow corresponding to "seat", and controls air conditioning so that the conditioned air blown out to the seat 3 reaches the seat set temperature Sset. In this way, when the cooling and heating capacity immediately after the operation is required, the air conditioning control is performed so that the air can be blown at a large air volume to enter the comfortable area as quickly as possible, and when the seat blowing temperature To approaches the seat set temperature Sset and the capacity becomes unnecessary, the air blowing rate is increased. The air-conditioning control of the vehicle interior is performed by controlling the air flow so as to reduce the airflow. This is similar to the air volume control (first control amount) of the air conditioning unit 21 described above.

The control characteristic B (first air-conditioning control) indicated by one solid line is a characteristic indicating the air volume control of the blower 41 corresponding to the target sheet blowing temperature TAOseat in a stable state, which will be described later. Temperature TAOsea
The air volume control is performed such that the air volume is reduced as t becomes lower and vice versa.

When the inside air temperature Tr in the vehicle compartment approaches the set temperature Tset, the above-mentioned deviation value becomes equal to or less than a predetermined value, and when it is determined that the vehicle interior air conditioning is in a stable state, the routine proceeds to step 152. Here, it is determined whether or not the state has just been switched from the excessive state to the stable state.
3 (first air conditioning switching control means).

Step 153 (first air conditioning switching control means) controls the air volume of the blower 41 in the stable state control characteristic B (first air conditioning control) shown by the solid line in FIG. As described above, the air volume is switched to a different air volume from the control amount in the transient state as described above. Therefore, in this step 153, the first air volume is switched in a stepwise manner to switch to the predetermined air volume. Air conditioning switching control (first air conditioning switching control means).

More specifically, the air volume is changed every level every four seconds and gradually switched to a predetermined air flow rate. And if it switches to the predetermined air volume,
In step 154 (first sheet air-conditioning control means), the first air-conditioning control in the stable state control characteristic B shown by the solid line in FIG. 7 is continued so that the sheet blowing temperature To reaches the sheet set temperature Sset. It controls the seat air conditioner.

Here, the control characteristic B (first air-conditioning control) of the seat air-conditioning unit 4 in a stable state, which is a main part of the present invention, will be described in detail. The target sheet outlet temperature TAOsea of the control characteristic B (first air conditioning control) shown in FIG.
The air volume control of the air volume corresponding to t was obtained from the following experimental results, and will be described.

First, the experimental results shown in FIG. 8 show that the air-conditioning air temperature controlled by the target air temperature TAO of the air conditioning unit 21 is blown into the vehicle cabin during the cooling operation, and the target air temperature TAOsea is also supplied to the seat air conditioning unit 4.
Air conditioning control corresponding to the transient state shown in FIG. 7 (second air conditioning control) is performed by taking in the air conditioning air corresponding to t, and the skin temperature of the occupant is measured by the temperature To which is blown out to the seat 3. The relationship between the blood flow value and the warm feeling level Sseat is shown. In addition, the outlet temperature To to the seat 3 is changed by changing the target outlet temperature TAO of the air conditioning unit 21 by changing the heat load on the vehicle side.
o, the lower the skin temperature, the greater the heat load on the vehicle side, the lower the target outlet temperature TAO, and the lower the outlet temperature To.

According to this data, the data is obtained about 20 minutes after the cooling is continued. As the heat load of the vehicle is large and the temperature To blow out to the seat 3 is low, the skin temperature is lowered and the blood flow value is lowered. Come. For example, when the skin temperature is 33.4 ° C. or less and the warm feeling level Sseat is −1 (slightly cool) or less, problems such as fatigue and back pain due to too cold may occur. Since this is a contact surface air conditioning that directly blows air to the skin in the seat air conditioning, the larger the heat load of the vehicle and the lower the blow-out temperature, the more the seat 3 becomes too cold before the interior of the vehicle is temperature-controlled and the passengers become uncool. It turned out to be pleasant. From this result,
Set the sheet blowing temperature to about 2
The temperature was set to 4.5 ° C. or higher.

Next, FIG. 9 (a) shows the result of an experiment which evaluated the relationship between the blowing air speed corresponding to the sheet blowing temperature and the warm feeling level Sseat. According to this, assuming that the sheet blowing temperature is the same, it has been found that by lowering the blowing wind speed, the warm feeling level Sseat is improved.

FIG. 9B shows the relationship between the blowing amount and the blowing amount based on the blowing air speed at which the temperature level Sseat corresponding to the sheet blowing temperature is 0 (insensitive) or more. It is the characteristic of. Therefore, in the first air conditioning control in the stable state of the cooling operation, the air volume control based on this characteristic is performed, and the indoor air control door 43 is fully opened when the seat blowing temperature reaches 24.5 ° C. The opening / closing control is performed so that the intake of the conditioned air from the air conditioning unit 21 is blocked. Thereby, since the indoor side has an air temperature of about 25 ° C., the skin temperature does not become 34 ° C. or lower, and it is possible to prevent the skin temperature from being too cold.

Further, when the inside air temperature Tr becomes, for example, 23 ° C. or less to prevent overcooling, the inside air control door 43 is kept open and the inside air intake port 4b is kept fully open. The operation is stopped, and the blowing of the conditioned air from the sheet 3 is stopped. Thereby, if the set temperature T ₁ set of the vehicle interior air conditioning is set low and the interior of the vehicle interior has reached a slightly cooler area, the seat air conditioning is stopped.

In the control device 37, FIG.
A control amount converted to a target sheet blowing temperature TAOseat is calculated based on the sheet blowing temperature shown in FIG. 7B, and the blower 41 and the indoor air control door 43 are controlled by the control amounts shown in FIG. Incidentally, the above-mentioned sheet blowing temperature of 24.5 ° C. is the target sheet blowing temperature TAOsea.
When converted to t, it is equivalent to about 20 ° C.

The control amount of the first air-conditioning control is different from that of FIG. That is, in the air conditioning unit 21 side, the air volume is increased when the target blowing temperature TAO is equal to or lower than the predetermined value. On the seat air conditioning unit 4 side, on the contrary, the ventilation level is reduced to improve the thermal sensation level Sseat and improve the comfort. To ensure. The above is the air volume control in the cooling operation in the first air conditioning control.

Next, in the case of the heating operation, the air-conditioning air whose temperature is controlled by the target blowing temperature TAO of the air-conditioning unit 21 is blown into the vehicle interior, and the seat air-conditioning unit 4 controls the transient state shown in FIG. FIG. 1 shows the results of an experiment in which the relationship between the sheet blowing temperature and the blowing wind speed, the thermal sensation level Sseat, and the feeling of comfort was performed by performing the second air-conditioning control using a.
0 (a). According to this, when the sheet blowing temperature is low and the wind speed is low, the thermal sensation level Sseat becomes −
When it was 1 (somewhat cool), the feeling of comfort was slightly uncomfortable and caused the user to be stuck in the knees, and when the sheet blowing temperature was high and the wind speed was high, the face was hot and the feeling of discomfort was obtained.

FIG. 10 (b) shows the relationship between the air flow rate and the air flow rate obtained based on the air flow rate of the comfort level 1 (slightly comfortable) or higher corresponding to the sheet air temperature. In the stable state of the heating operation, the first air conditioning control based on this characteristic is performed.

In the control device 37, similarly to the cooling operation, a control amount converted to a target sheet blowing temperature TAOseat based on the sheet blowing temperature shown in FIG. 10B is calculated. To control the blower 41.

The control amount of the first air-conditioning control is the air-flow control of the air-conditioning unit 21 in the same manner as in the cooling operation.
Is different from That is, in the air conditioning unit 21 side, when the target blowing temperature TAO is equal to or higher than the predetermined value, the air volume is increased. On the seat air conditioning unit 4 side, the air volume is reduced to prevent overheating and secure comfort. Things. The above is the first air conditioning control in step 154, in which the control amount of the blown air amount is obtained based on the passenger's warm feeling level Sseat.

Next, step 155 (indoor air switching control means) will be described. Insolation is strong, such as under the scorching sun in summer,
When the outside air temperature is high, the air conditioning unit 21
The set temperature Tset calculated in 37 is set low, and the operation is performed at the target blowing temperature TAO having a large capacity. In such a case, the sheet air-conditioning unit 4 side tends to be undercooled, so the sheet blowing temperature To is set to the target sheet blowing temperature TAOsea.
When the air temperature is lower than t, the indoor air switching control is performed by mixing the room air from the indoor air suction port 4b and the cool air from the air conditioning unit 21 by adjusting the opening degree of the indoor air control door 43 to perform a predetermined blowout temperature control. Things.

In the heating operation in winter, when the air conditioning unit 21 is operated with a large capacity and the seat outlet temperature To is higher than the target seat outlet temperature TAOseat, the inside air suction is similarly performed by adjusting the opening degree of the room air control door 43. Mouth 4
This is to perform indoor air switching control in which the vehicle interior air from b and the warm air from the air conditioning unit 21 are mixed to perform predetermined blowout temperature control.

Other operations in the cooling mode, heating mode, and intermediate mode of the seat air conditioning unit 4 that performs the above air conditioning control will be described.

First, when the air-conditioning unit 21 is in the cooling mode, that is, when the target outlet temperature TAO is
Since the value is lower, the cooling mode is determined, the face opening 32 is opened, and cool air is blown out from the face outlet on the vehicle side, and the cool air is branched and sent to the cool air duct 32a. Here, on the seat air conditioning unit 4 side, the target sheet outlet temperature TA obtained from the sheet set temperature Sset, the sheet outlet temperature To, and the target outlet temperature TAO.
Operated in Ocean. Target sheet outlet temperature TAO
Since seat is a value lower than the sheet blowing temperature To, it is determined that the air conditioner is in the cooling mode, and the cool / hot air control door 42 is opened to the cool air side, and the room air control door 43 fully closes the inside air suction port 4b, and the above-described transition state is stopped. Second using control characteristics b
In the first air conditioning control using the air conditioning control or the stable condition control characteristic (b), the blower 41 is operated to blow out the cool air to the seat 3 and perform the air temperature control of the seat air conditioning.

When the occupant seated in the seat 3 operates the seat temperature setting switch 55 to change the setting of the seat setting temperature Sset, for example, one rank is changed from the seat setting temperature Sset “0” to the cold side. In this case, the target sheet outlet temperature TAOseat is reduced by one rank change value to correspond to the outlet temperature control and the air volume control. Conversely, the sheet set temperature Sset “0”
In the case where the target sheet blowing temperature TAOseat is changed by one rank from warm to the warm side, the target sheet blowing temperature TAOseat is increased by one rank and the blowing temperature control and the air volume control are made to correspond.

Next, since the air-conditioning unit 21 is in the heating mode, that is, the target outlet temperature TAO is higher than the inside air temperature Tr, it is determined that the air conditioner is in the heating mode, the foot opening 33 is opened, and the warm air flows from the foot outlet on the vehicle side. Is blown out, and the hot air is branched and sent into the hot air duct 33a. Here, on the seat air-conditioning unit 4 side, the sheet set temperature Sset, the sheet outlet temperature To, and the target outlet temperature T
The operation is performed at the target sheet blowing temperature TAOseat obtained from AO. Since the target sheet outlet temperature TAOseat is higher than the sheet outlet temperature To, it is determined that the heating mode is set, and the cool / hot air control door 42 is opened to the hot air side, and the room air control door 43 completely closes the inside air suction port 4b to blow the blower 4
1 is operated to blow hot air to the sheet 3 and the second
Or the first air conditioning control.

When the occupant in the seat 3 operates the seat temperature setting switch 55 to change the setting of the seat setting temperature Sset, for example, one rank is changed from the seat setting temperature Sset “0” to the cold side. In this case, the target sheet outlet temperature TAOseat is reduced by one rank change value to correspond to the outlet temperature control and the air volume control. Conversely, the sheet set temperature Sset “0”
In the case where the target sheet blowing temperature TAOseat is changed by one rank from warm to the warm side, the target sheet blowing temperature TAOseat is increased by one rank and the blowing temperature control and the air volume control are made to correspond.

Next, when the air-conditioning unit 21 is in the intermediate mode, the face opening 32 and the foot opening 33 are opened, so that cool air is blown out of the vehicle-side face outlet and warm air is blown out of the foot outlet. At the same time, the cold air is branched into the cold air duct 32a and the hot air is branched into the hot air duct 33a and sent. In this case, when the setting of the seat set temperature Sset of the seat air-conditioning unit 4 is set to the middle “0” or the cold side, the cool / hot air control door 42 is opened to the cold air side to feed the cool air and the sheet blowing temperature To. When the temperature decreases, the blowout temperature control for mixing the room air and the cool air is performed, and the blowout temperature control is performed by the above-described second air conditioning control or first air conditioning control.

Conversely, when the setting of the seat set temperature Sset is set to the warm side, the cold / hot air control door 42 is opened to the hot air side to feed hot air, and when the sheet blowing temperature To rises, the indoor air In addition to performing the blow-out temperature control for mixing the hot air and the hot air, the blow-out temperature control is performed by the second air conditioning control or the first air conditioning control described above. The temperature of the blown air may be controlled by adjusting the mixing ratio of the cool air and the warm air with the cool / hot air control door 42 for the mixture of the cool air and the warm air.

According to the embodiment having the above configuration, the controller 37 for controlling the air conditioning unit 21 controls the seat air conditioning of the seat air conditioning unit 4 to perform the first air conditioning control when the vehicle interior air conditioning is in a stable state. By having a different control in the second air conditioning control when the vehicle interior air conditioning is in a transient state,
While controlling the air conditioning unit 21 of the vehicle interior air conditioning,
It is possible to control the seat air-conditioning unit 4 that is a contact surface air-conditioner.

For example, when the vehicle interior air-conditioning reaches a stable state and the solar radiation is strong and the heat load of the vehicle is large such as under hot sun, the air-conditioning control of the air-conditioning unit 21 reduces the temperature of the conditioned air and increases the air volume. Controls such as
In such a case, the seat air-conditioning unit 4 rather gives the occupant a feeling of discomfort due to overcooling. Similarly, when the heat load of the vehicle during heating is large, the air conditioning control of the air conditioning unit 21 is performed by increasing the air-conditioned air blowing temperature and increasing the air volume. In addition, the seat air conditioning unit 4 gives an occupant a discomfort due to overheating.

Therefore, by performing another control in the first air-conditioning control obtained by the evaluation of the occupant's thermal sensation level Sseat based on the temperature and amount of the conditioned air blown out to the seat 3, the conventional undercooling and overheating can be prevented. it can. With this result,
The comfort of vehicle interior air conditioning and seat air conditioning can be improved.

Further, when the vehicle interior air conditioner is in a transient state in which the seat surface temperature is high and rapid cooling is required, such as when the vehicle is parked for a while under the scorching sun, and the passenger needs to be cooled rapidly, the blowout temperature and air volume are maximized. Rapid cooling is possible by controlling the second air-conditioning control in which the blowing temperature is lowered by exerting the capacity. The second air conditioning control performs the same control as the air conditioning control of the air conditioning unit 21, thereby improving the immediate effect of the vehicle interior air conditioning and the seat air conditioning.

The control device 37 for controlling the air conditioning unit 21 performs the second air conditioning control and the first air conditioning control described above on the basis of the heat load detection values Tr and Ta shared with the air conditioning unit 21.
By using m, Ts, the temperature setting switch 53, and the target outlet temperature TAO, it is possible to share the components of the air conditioning unit 21 and control the seat air conditioning unit 4 with good accuracy without providing separate components and the like. Become. As a result, the product cost of the seat air conditioning unit 4 can be reduced.

Further, the air conditioning of the air conditioning unit 21 is controlled as follows.
For example, when there is a gap from the set temperature Tset in the cooling operation, control is performed to increase the air flow as the blowout temperature is lower. However, the first air conditioning control described above performs airflow control with a higher blowout flow at a lower blowout temperature. Then, it becomes a cause of low back pain and feeling of fatigue due to too cold, and in order to eliminate this, the air volume corresponding to the blowout temperature was evaluated by an evaluation based on the warm feeling level Sseat.
As a result, more specifically, the lower the blowout temperature, the lower the airflow, the more the airflow is controlled, so that the occupant's discomfort can be eliminated and the comfort can be improved.

Similarly, in the heating operation, the set temperature T
When there is a gap from the set, control is performed to increase the air volume as the blow-out temperature is higher. However, in the first air conditioning control described above, if the air flow control at a high blow-out temperature is performed at a high blow-out temperature, the face may be overheated due to overheating. It becomes a factor such as knee cold due to low heat and low airflow at low air temperature, and in order to eliminate this, the air volume corresponding to the air temperature was evaluated by an evaluation based on the thermal sensation level Sseat and comfortable feeling. The higher the blowout temperature, the more the control amount is controlled with a lower airflow, so that the occupant's discomfort can be eliminated and the comfort can be improved.

In the first air-conditioning control, since the control is performed such that the blow-out temperature and the flow rate are different from the second air-conditioning control as described above, the flow rate corresponding to the blow-out temperature changes from the transient state in the vehicle interior air-conditioning. Immediately after switching to the stable state, there is no discomfort by shifting to the first air-conditioning control by using the first air-conditioning switching control in which the air volume is controlled to change to the predetermined level in steps of one level in a certain cycle. The control amount can be changed without giving the occupant any discomfort.

In the air conditioning control of the air conditioning unit 21,
When the heat load is large, the first air-conditioning control is performed to prevent this from easily causing overcooling and overheating. However, when the blowout temperature further decreases or increases, the interior air control door 43 controls the cabin. By performing the indoor air switching control for adjusting the mixing by taking in air, it is possible to prevent overcooling and overheating, thereby improving comfort.

In the first air conditioning control, the target sheet blowing temperature TAOseat is set to a predetermined temperature (for example, about 2 ° C).
(0 ° C.) or lower, the room air switching door 43 is switched to take in room air from the room side, thereby preventing overcooling. Furthermore, the vehicle interior temperature (Tr) is 2
By stopping the blower 41 when the temperature is equal to or lower than 3 ° C. and stopping the blowing of the conditioned air from the seat 3, when the set temperature T ₁ set of the vehicle interior air conditioning is set low and the vehicle interior is in a slightly cool region, the excessive It is preferable to stop the seat air-conditioning because it is easy to cause discomfort due to cooling.

Further, the air-conditioning state determining means (step 150) for switching to either the first air-conditioning control or the second air-conditioning control is provided with a deviation (Σ = の) between the set temperature (Tset) and the vehicle interior temperature (Tr). | Tset−Tr | ≦ δ) and the ゛ determination value δ is determined as the vehicle interior temperature (Tr)
If the seat air conditioning is under-cooling or over-heating when it is stable, it is determined by an arbitrary value obtained from an experiment, and the transition of the cabin temperature (Tr) is detected to detect the transition of the cabin air conditioning to the transient state. It is possible to easily determine whether the vehicle interior temperature (Tr) is stable or not and to prevent overcooling or overheating in the seat air-conditioning, and to provide comfortable seat air-conditioning. Can be.

(Another Example 1 of Air Conditioning State Determination Method Shown in Step 150) In the above-described embodiment, the difference between the set temperature Tset obtained by the ECU 37 and the inside air temperature Tr (Σ = | T
The air-conditioning state determination means (step 150) for determining whether the vehicle interior air-conditioning is in a stable state or in a transient state using a stable state discriminant using set-Tr | ≦ δ) has been described. Set temperature Ts obtained by ECU 37
The determination may be made by a stable state determination formula calculated from the following formula (3) using et, the inside air temperature Tr, and the seat setting temperature Sset set by the occupant.

Σ = | (Tset + Sset) −Tr | ≦ δ (3) Here, in order to average out the variation of the set temperature Tset, the seat set temperature Sset, and the inside air temperature Tr of the detected value, it is set in a 4-second cycle. The deviation between the temperature Tset and the inside air temperature Tr is accumulated every 4 seconds, obtained by a deviation value of 2 minutes (n times), compared with a predetermined value δ, and when Σ> δ, a transient state, Σ ≦ δ
Then, it is determined that the state is stable. The predetermined value δ
Is an arbitrary value obtained by an experiment to determine whether the seat air conditioning is under cooling or over heating when the inside air temperature Tr is stable.

Next, the stable state discriminant will be described. First, when the air conditioning unit 21 is in the transition state of the cooling mode, the stable state determination formula is not satisfied because the inside air temperature Tr is high. For example, here, in order to simplify the calculation, n = 4 times and the determination value δ = 20, and the set temperature is T
When the inside air temperature Tr is set to Tr 2 when set = 25 and Sset = 0, the left side of the equation (3) becomes 28 and exceeds the right side 20, which does not satisfy the stable state discriminant. That is, at this time, it is determined that the vehicle is in the transient state, and the seat air-conditioning unit 4 in step 151 is subjected to the second air conditioning control using the control characteristic A (shown in FIG. 7) in the transient state to cool the occupant.

Thereafter, when the inside air temperature Tr drops to 30, the left side of the equation (3) becomes 20, which satisfies the stable state discriminant. That is, at this time, it is determined to be in a stable state,
Via the steps 152 and 153, the seat air conditioning unit 4 of the step 154 is subjected to the first air conditioning control using the stable control characteristic B (shown in FIG. 7) and the indoor air switching control of the step 155 to perform supercooling. It is controlled to avoid it.

Then, the occupant sitting on the seat 3
When the seat temperature setting switch 55 is operated to change the seat setting temperature Sset to, for example, “2” in the warming zone 55b, if the inside air temperature Tr becomes lower than 32, it is determined to be in a stable state and the first state is determined. Perform air conditioning control. As a result, the first air conditioning control is switched to the stable state at the time when the seat blowing temperature is higher, so that seat air conditioning for occupants who prefer warmth can be performed.

Conversely, when the sheet set temperature Sset is changed to, for example, “−2” in the cooling zone 55a, if the inside air temperature Tr becomes lower than 28, it is determined to be in a stable state and the first state is determined. Perform air conditioning control. As a result, switching to the first air conditioning control is performed after the seat blow-out temperature is lowered, so that seat air conditioning for the occupant who likes to cool can be performed.

Next, in the transient state of the heating mode, the stable state discriminant is not satisfied because the inside air temperature Tr is low.
For example, when n = 4 and δ = 20, Tset = 25,
Sset = 0 is set and the inside air temperature Tr is Tr =
At 17, the left side of equation (3) becomes 32 and exceeds the right side 20, which does not satisfy the stable state discriminant. That is, at this time, it is determined that the vehicle is in the transient state, and the seat air conditioning unit 4 performs the second air conditioning control in step 151 to warm the occupant.

Thereafter, when the inside air temperature Tr rises to 20, the left side of the equation (3) becomes 20, satisfying the stable state discriminant. That is, at this time, it is determined to be in a stable state,
The first air conditioning control in step 154 and the indoor air switching control in step 155 are performed via steps 152 and 153 to control to avoid overheating.

Then, the occupant sitting on the seat 3
When the seat temperature setting switch 55 is operated to change the seat setting temperature Sset to, for example, “2” in the warming zone 55b, when the inside air temperature Tr becomes higher than 22, it is determined to be in a stable state and the first air conditioning is performed. Perform control. As a result, the first air conditioning control is switched to when the seat blowout temperature is higher, so that seat air conditioning for occupants who prefer warmth can be performed.

Conversely, when the set sheet temperature Sset is changed to, for example, "-2" in the cooling zone 55a, if the inside air temperature Tr becomes higher than 18, it is determined to be in a stable state and the first state is determined. Perform air conditioning control. As a result, the air conditioner is switched to the first air conditioning control at a time when the seat blowing temperature is slightly lower, so that the seat air conditioning can be performed for the occupant who prefers cooling.

According to the above air-conditioning state determination method, by using the stable state discriminant equation (3) based on the set temperature Tset, the inside air temperature Tr, and the seat set temperature Sset set by the occupant, contact air-conditioning is used in seat air-conditioning. Therefore, since the individual difference greatly affects the thermal sensation, it is possible to control the seat air-conditioning with a variable width from the warming preference to the cooling preference corresponding to the variation of the individual difference. as a result,
More comfortable air conditioning control is possible than when the stable state determination method described first is used.

(Another Example 2 of Air Conditioning State Determination Method Shown in Step 150) In the above-described embodiment, the stable state determination formula is set to Σ = | Tset−Tr | ≦ δ, and δ is fixed as a predetermined value. However, the present invention is not limited to this, and δ may be a variable corresponding to the sheet set temperature Sset.

First, in the cooling operation, the seat set temperature Sse
If the setting of t is changed to, for example, “2” in the warming zone 55b, the warming preference can be handled by changing the variable δ. For example, when n = 4, δ = 20, and Tset = 25, when the inside air temperature Tr becomes lower than 30, the stable state discriminant is satisfied, the state is determined to be stable, and the first air conditioning control is performed.
Here, by changing the variable δ to 28, when the inside air temperature Tr becomes lower than 32, it is determined to be in a stable state and the first air conditioning control is performed. As a result, it is possible to switch to the first air-conditioning control at a time point higher than the seat blowout temperature, and to obtain warmer-preferred seat air-conditioning.

Conversely, when the sheet set temperature Sset is changed to, for example, "-2" in the cooling zone 55a, the cooling liking can be handled by changing the variable δ. For example, by changing the variable δ to 12, when the inside air temperature Tr becomes lower than 28, it is determined to be in a stable state and the first state is determined.
Air conditioning control. As a result, it is possible to switch to the first air-conditioning control at a time point lower than the sheet blowing temperature, and to obtain the desired cooling air conditioner.

Next, in the heating operation, the seat set temperature Sse
Even when the setting of t is changed to “2” in the warming zone 55b, it is possible to respond to warming preference by changing the variable δ. For example, in the case of n = 4, δ = 20, Tset = 25, when the inside air temperature Tr becomes higher than 20, it is determined to be in a stable state and the first air conditioning control is performed. Here, by changing the variable δ to 12, when the inside air temperature Tr becomes higher than 22, it is determined to be in a stable state, and the first air conditioning control is performed. as a result,
Switching to the first air conditioning control can be performed at a time point higher than the seat blowout temperature, and the desired seat air conditioning can be obtained.

Conversely, when the sheet set temperature Sset is changed to “−2” in the cooling zone 55a, changing the variable δ can meet the cooling preference. For example, by changing the variable δ to 28, the inside air temperature Tr
Is higher than 18, a stable state is determined and the first air conditioning control is performed. As a result, it is possible to switch to the first air-conditioning control at a time point lower than the sheet blowing temperature, and to obtain the desired cooling air conditioner.

According to the above-described air-conditioning state determination method, by changing the variable δ in response to the change in the setting of the seat set temperature Sset, the warmth corresponding to the variation of the individual difference similar to the above-described other example 1 is obtained. It is possible to control seat air conditioning with a variable width from liking to cooling.

Also, the stable state discriminant (他 = | (Tset + Sset) −Tr | ≦ δ) described in the other example 1 described above.
, The predetermined value δ is changed to a variable and the sheet set temperature Ss
By changing the variable δ in response to the setting change of et, the variable range from the warmer preference to the cooler preference can be expanded, and more comfortable seat air conditioning can be obtained.

(Another Example 3 of Air Conditioning State Determination Method shown in Step 150) In addition, the above-mentioned stable state determination formula (判別 = |
In (Tset + Sset) -Tr | ≦ δ, where δ is a variable, it is not possible to distinguish between the setting change of the set temperature Tset and the setting change of the sheet set temperature Sset, and it is desired to blow the sheet blowing temperature below a certain temperature. When the set temperature Tset is lowered when there is no air, there is a case where a low-temperature blowout is generated from the sheet 3. Therefore, when only the set temperature Tset is changed, it is possible to prevent the air having the variable δ changed from being blown out of the sheet 3 at a temperature lower than a certain temperature.

For example, the standard for the cooling operation is n =
4, δ = 20, Tset = 25, Sset = 0, and if only the set temperature Tset is changed to Tset = 27, if the inside air temperature Tr is lower than 32, the seat air-conditioning
Judge as a stable state. However, the sheet set temperature Sset
Has not changed and is somewhat uncomfortable for occupants who like to cool down. Therefore, when only the set temperature Tset is changed, the variable δ is changed to 12 to change the inside air temperature Tset.
Until r becomes lower than 30, the stable state is not determined, so that the seat can be air-conditioned for cooling.

Conversely, only the set temperature Tset is set to T
When the setting is changed to set = 23, if the inside air temperature Tr is lower than 28, the seat air conditioning is determined to be in a stable state. But,
The seat set temperature Sset has not been changed, and it is uncomfortable for an occupant who prefers to warm up a little. Therefore, the set temperature T
When only the setting of the set is changed, the variable δ is changed to 28, so that the stable state is not determined until the inside air temperature Tr becomes lower than 30.

According to the above air-conditioning state determination method, when only the set temperature Tset is changed, the set temperature Ts
By changing the variable δ corresponding to et, the first air-conditioning control can be performed without changing the determination of the stable state on the seat air-conditioning side. You can air-condition your favorite seat from your favorite one.

(Other Embodiments) In the above embodiment, the air conditioning control is described by comparing the air temperature To blown out to the sheet 3 with the target sheet blowout temperature TAOseat using the sheet blowout temperature sensor 47. The temperature sensor 47 may not be provided, and the sheet blowing temperature To may be estimated based on temperature data of a detection sensor of the air conditioning unit 21 such as the inside air temperature Tr, and air conditioning control may be performed by comparing with the data. Thereby, it can be shared with the components of the air conditioning unit 21, and the air conditioning of the seat 3 can be controlled without providing a separate detection component or the like.

In the above embodiment, the air conditioning control of the sheet air conditioning in which the cool air or the hot air is guided from the air conditioning unit 21 to the seat air conditioning unit 4 and the cool air or the hot air is blown out from the air outlet 3a of the seat 3 has been described. However, the present invention is not limited to this, and can be applied to air conditioning control of seat air conditioning in which a heating and cooling device using a Peltier element is incorporated in the seat air conditioning unit 4. As shown in FIG. 11, a heating / cooling device 60 using a Peltier element is installed in the ventilation passages 3d and 3e of the seat 3b and the backrest 3c of the seat 3, and a blower 61 is installed upstream of these. It is connected to the discharge port 4a of the air conditioning unit 4. Thereby, the air conditioning unit 2
After heating or cooling the air that has led the cool air or hot air from 1 to the sheet air conditioning unit 4 with the heating / cooling device 60, the air is blown out from the air outlet 3 a of the sheet 3.

Also in this configuration, the ECU 37 determines the inside air temperature Tr, the outside air temperature Tam, and the amount of solar radiation T of the air conditioning unit 21.
s and the temperature setting switch T ₁ set, a target blowout temperature TAO is obtained, and the target blowout temperature TAOsea of the conditioned air blown out to the seat 3 is obtained from the target blowout temperature TAO.
t, and calculates the target sheet blowing temperature TAOseat.
Control of the blower 61 and the heating / cooling unit 60 corresponding to
The air conditioning control can be performed by dividing the output control into a transient state and a stable state. By adding the output control of the heating / cooling unit 60 to the ECU 37, the capacity of the heating / cooling unit 60 can be increased when the target blowing temperature TAO of the air conditioning unit 21 is operated with a small capacity. As a result, the comfort of the seat air conditioning can be further improved.

Further, the control device 37 of the above embodiment is
Air-conditioning control of the air-conditioning unit 21 controlled by the target air outlet temperature TAO and air volume control (first control amount), and a sheet controlled by the target sheet air temperature TAOseat and air volume control (second control amount). Air conditioning unit 4
The seat air-conditioning control is determined based on the detected values Tr, Tam, Ts of the thermal loads, which are the components of the air-conditioning unit 21, and the target outlet temperature TAO calculated from the input information of the temperature setting switch 53. The air conditioning control of the seat air conditioning unit 4 is not limited to the detection value Tr, Ta of the heat load.
The target sheet blowing temperature TAOs based on the target sheet blowing temperature TAOseat for the sheet from the input information of m and Ts.
The air-conditioning control of the seat air-conditioning unit 4 (target seat calculating means) is performed when the air-conditioning in the vehicle is in a stable state.
It may be possible to have the first air conditioning control (first target sheet calculation means) and the second air conditioning control (second target sheet calculation means) in a transition state.

As a result, the air conditioning unit 2 for vehicle interior air conditioning is provided.
1 and control of the seat air-conditioning unit 4 which is a contact surface air-conditioner.

Further, the set temperature Tset of the above embodiment is set.
Is calculated from the outside air temperature Tam and the amount of solar radiation Ts by equation (1) based on the set temperature T ₁ set input to the ECU 37 by operating the temperature setting switch 53 set by the occupant. However, it is needless to say that the set temperature T ₁ set set by the occupant may be directly used.

In the above-described embodiment, the conditioned air taken in from the air conditioning unit 21 is cooled by the cool air.
2. Hot air is blown from the foot opening 33 to the seat air conditioning unit 4.
However, it is not limited to this, and it is also possible to use the side face opening. As shown in FIGS. 12 (a) and 12 (b), the air conditioning unit 21 has left and right side face outlets for blowing air toward the occupant head side or the vehicle side window glass at the left and right ends of the vehicle cabin. Left and right side face openings 321 communicating therewith are provided. In the present embodiment, conditioned air is introduced into the seat air conditioning unit 4 from one of the left and right side face openings 321 via the duct 321a. The left and right side face openings 321 are controlled to open and close so that air is constantly ventilated even when the blowing mode is changed. By taking in through the side face opening 321, the number of parts can be reduced because only one cold / hot air control door 42 for mixing with cold air and hot air and the duct 321 a are required.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a configuration of a seat air conditioning unit according to an embodiment of the present invention.

FIG. 2 is a front view showing a configuration of an air conditioner operation panel of the air conditioning unit according to one embodiment of the present invention.

FIG. 3A is a front view illustrating a configuration of a seat air conditioning operation panel of a seat air conditioning unit, and FIG. 3B is a diagram illustrating a relationship between an occupant's feeling level and a set temperature.

FIG. 4 is a flowchart showing a flow of air conditioning control of a seat air conditioning unit according to one embodiment of the present invention.

5A is a diagram showing a relationship between the outside air temperature Tam and ΔTam, and FIG. 5B is a diagram showing a relationship between the solar radiation Ts and ΔTs.

FIG. 6 is a diagram showing a relationship between an air blowing amount of an air conditioning unit and a target blowing temperature.

FIG. 7 is a diagram showing the relationship between the amount of air blown by a sheet air conditioning unit and a target sheet blowing temperature.

FIG. 8 is a diagram showing the relationship between skin temperature, blood flow value, and warm feeling level.

FIG. 9A is a diagram illustrating a relationship between a warm feeling level and a sheet blowing temperature, and FIG. 9B is a diagram illustrating a relationship between a blowing amount and a sheet blowing temperature.

10A is a diagram illustrating a relationship between a warm feeling level and a feeling of comfort, and a blowing wind speed and a seat blowing temperature; FIG.
FIG. 4 is a diagram illustrating a relationship between a blowing amount and a sheet blowing temperature.

FIG. 11 is a schematic configuration diagram showing a seat air conditioner incorporating a heating / cooling device according to another embodiment.

FIG. 12A is a perspective view showing a seat air conditioner connected to a side face opening in another embodiment,
(B) is a schematic configuration diagram of a seat air conditioning unit.

[Explanation of symbols]

4: Seat air conditioning unit 21: Air conditioning unit 37: ECU (control device) 43: Indoor air control door (switching control means) 53: Temperature setting switch (set temperature) 54: Seat air conditioning operation panel (Seat air conditioning operation means) 130: Calculation of target air outlet temperature (target air outlet temperature calculating means) 140 ... Calculation of target air outlet temperature (target seat arithmetic means) 150 ... Air-conditioning state determining means 151 ... Second air-conditioning control (second seat air-conditioning control means,
153: first air conditioning switching control (first air conditioning switching control means) 154 ... first air conditioning control (first seat air conditioning control means,
155: Indoor air switching control (indoor air switching control means) 321: Side face opening Sset: Seat setting temperature Tr: Inside air temperature (detected value of heat load, vehicle interior temperature) Tam: Outside air Temperature (detected value of heat load) Ts: Insolation (detected value of heat load) TAO: Target outlet temperature TAOseat: Target seat outlet temperature Tset: Set temperature

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yuichi Kajino 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Inside Denso Corporation (72) Inventor Takeshi Sakai 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Denso Corporation F-term (for reference) 3L011 AF02 BV01

Claims (15)

[Claims] 1. An air conditioning unit (21) for blowing temperature-controlled conditioned air into a vehicle interior; a seat air conditioning unit (4) for blowing conditioned air to a seat where an occupant sits; Tam, Ts), and a control device (37) for controlling the air conditioning unit (21) and the seat air conditioning unit (4), wherein the control device (37) controls the detection value ( Tr, Tam, Ts) and the target outlet temperature (TAO) into the vehicle cabin based on the set temperature (53) set by the occupant.
Air temperature control means for controlling the air conditioning unit (21) according to a first control amount obtained based on the target air temperature (TAO); and the target air temperature. (TAO) based on the second
And a seat air-conditioning control means for controlling the seat air-conditioning unit (4) according to the control amount of the second air conditioner. The first seat air-conditioning control means (15
4) and a second seat air-conditioning control means (151) for determining the second control amount when the vehicle interior air-conditioning is in a transient state. 2. The first seat air-conditioning control means (15)
The second control amount of 4) is the target blowout temperature (TA
O) is equal to or less than a first predetermined value and the target outlet temperature (TA)
O) is a control amount for decreasing the air flow with respect to the first control amount of the air conditioning control means, which is a control amount for increasing the air flow when the second predetermined value is greater than or equal to a second predetermined value. 2. The vehicle air conditioner according to 1. 3. The seat air conditioning unit (4) has a switching control means (43) that takes in the conditioned air from the air conditioning unit (21) and the air from the vehicle interior and adjusts the mixing ratio of the two. And the first sheet air-conditioning control means (154) is configured to switch the switching control means (43) when a target sheet blowing temperature (TAOseat) obtained based on the target blowing temperature (TAO) is equal to or lower than a predetermined blowing temperature. The vehicle air conditioner according to claim 1, wherein the air conditioner is controlled to shut off conditioned air from the air conditioner unit (21) and to take in air from the vehicle interior. 4. The first seat air conditioning control means (15)
4) stopping the control of the seat air-conditioning unit (4) when the inside air temperature (Tr) of the detection values (Tr, Tam, Ts) is equal to or lower than a predetermined inside air temperature. 3. The vehicle air conditioner according to 3. 5. An air conditioning unit (21) for blowing air-conditioned air into the passenger compartment, a seat air-conditioning unit (4) for blowing air-conditioned air to a seat where an occupant sits, and a detection value (Tr, Tr) of a heat load of the vehicle. Tam, Ts) and a control device (37) for controlling the air conditioning unit (21) and the seat air conditioning unit (4), respectively, according to the first control amount and the second control amount obtained based on the first control amount and the second control amount. The controller (37) obtains a target outlet temperature (TAO) into a vehicle compartment based on the detected value (Tr, Tam, Ts) of the heat load of the vehicle, and controls the air conditioning unit (21). And a target sheet temperature (TAOsea) based on the detected values (Tr, Tam, Ts).
t), and the target seat calculation means (14) for determining the second control amount for controlling the seat air conditioning unit (4).
0), and the target sheet calculating means (14)
0) is a first target seat calculating means (154) for determining the second control amount when the vehicle interior air-conditioning is in a stable state.
And a second target seat calculating means (151) for determining the second control amount when the vehicle interior air conditioner is in a transient state. 6. The first target sheet calculating means (15)
The second control amount of 4) is the target blowout temperature (TA
O) is equal to or less than a first predetermined value and the target outlet temperature (TA)
O) is a control amount for decreasing the air flow with respect to the first control amount of the air conditioning control means, which is a control amount for increasing the air flow when the second predetermined value is greater than or equal to a second predetermined value. 6. The vehicle air conditioner according to 5. 7. The seat air conditioning unit (4) has switching control means (43) for taking in the conditioned air from the air conditioning unit (21) and the air from the vehicle interior and adjusting the mixing ratio of the two. And the first target sheet calculating means (154) controls the switching control means (43) when the target sheet blowing temperature (TAOseat) is equal to or lower than a predetermined blowing temperature based on the second control amount. The vehicle air conditioner according to claim 5, wherein the air conditioner is controlled to shut off conditioned air from the air conditioner unit (21) and to take in air from the vehicle interior. 8. The first target sheet calculating means (15)
4) A control amount for stopping the control of the seat air conditioning unit (4) when the inside air temperature (Tr) is equal to or lower than a predetermined inside air temperature among the detection values (Tr, Tam, Ts). The vehicle air conditioner according to claim 7, wherein 9. The seat air-conditioning unit (4) has a switching control means (43) that takes in the conditioned air from the air-conditioning unit (21) and the air from the vehicle interior and adjusts the mixing ratio of the two. And the control device (37) controls the switching control means (43) to control the air conditioning unit (2).
The vehicle air conditioner according to claim 1 or 5, further comprising an indoor air switching control means (155) for mixing the conditioned air from (1) and air from the vehicle interior. 10. The air conditioning unit (4) is connected to the air conditioning unit (21), and air-conditions through a side face opening (321) that is constantly ventilated in a blowing mode of the air conditioning unit (21). The vehicle air conditioner according to claim 1 or 5, wherein wind is taken in. 11. The control device (37) has an air-conditioning state determining means (150) for determining whether the air conditioning in the vehicle compartment is in a stable state or a transient state, and the air-conditioning state determining means (150) includes: Set temperature (Tset) for obtaining target outlet temperature (TAO) and vehicle interior temperature (Tr)
The vehicle air conditioner according to any one of claims 1 to 10, wherein the determination is performed by a stable state determination formula based on the following. 12. The control device (37) includes an air conditioning state determining means (150) for determining whether the air conditioning in the vehicle compartment is in a stable state or a transient state, and the air conditioning state determining means (150) includes: 2. A stable state determination formula based on a set temperature (Tset) for obtaining a target outlet temperature (TAO), a seat set temperature (Sset) set by an occupant, and a vehicle interior temperature (Tr). The vehicle air conditioner according to claim 10. 13. The air-conditioning state determining means (150),
The vehicle air conditioner according to claim 12, wherein a determination value of the stable state determination formula is changed according to a change in setting of the seat set temperature (Sset). 14. The sheet set temperature (Sset) is:
13. The set temperature set by the seat air-conditioning operation means (54) for operating the seat air-conditioning unit (4), and having a selection range from a warm region to a cool region. Or the air conditioner for vehicles according to claim 13. 15. The control device (37), when the vehicle interior air conditioner has just switched from the transient state to the stable state,
15. The air-conditioning switching control means (153) for gradually changing a control amount according to a transient state to a control amount according to a stable state. The vehicle air conditioner according to claim 1.