JP2001206055A - Seat air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat air conditioner for a vehicle maintaining a seat face heat sensation of seat air-conditioning even when air-conditioning capacity of a vehicle air conditioner 1 is changed. SOLUTION: On the basis of a vehicle air-conditioning TAO(target air outlet temperature), an air-conditioning air blowout temperature of the vehicle air conditioner 1 is estimated, and from the estimated vehicle air-conditioning blowout temperature, a seat air-conditioning blowout temperature is estimated in consideration of a temperature rise/drop due to an air-conditioning thermal load from the air conditioner 1 to a front seat 3. On the basis of the estimated seat air-conditioning blowout temperature, a seat air-conditioning air blower level and an opening ratio between an air-conditioning air suction port 45 and an interior air suction port 46 are adjusted for regulating a seat air-conditioning air quantity and a mixing ratio between vehicle air-conditioning air and interior air, so that the seat air-conditioning air quantity and the seat air-conditioning blowout temperature are selected so that the seat face heat sensation set by a front seat side occupant is achieved. In this way, no uncomfortable feeling of overcooling/overheating is given to the front seat side occupant, and the seat face for the front seat side occupant can be air-conditioned comfortably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conditioned air flow toward a seat surface or an conditioned air blown from a seat surface so that an occupant sitting on a seat with a seat air conditioner has a desired seat surface warm feeling. For example, the present invention relates to a seat air conditioner for a vehicle such as an automobile capable of controlling the air temperature of the seat air conditioner.

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Patent Application Publication No. 10-297243 discloses a heating and cooling device for seat air conditioning for blowing hot air, cold air, or air from a plurality of air outlets provided in a vehicle seat. 2. Description of the Related Art There has been proposed a vehicle seat air conditioner (prior art) that is linked to a vehicle air conditioner that air-conditions a room.

In this vehicle seat air conditioner, the air conditioning capacity of the heating / cooling device for seat air conditioning is increased or decreased in accordance with the increase or decrease of the air conditioning capacity of the vehicle air conditioner or the rise or fall of the set temperature in accordance with the air conditioning capacity of the vehicle air conditioner. Things. And
When the air conditioning heat load on the air conditioning of the vehicle air conditioner is large and the air conditioning capability of the vehicle air conditioner is high, the air conditioning capability of the heating / cooling device for seat air conditioning is also set high. When the air conditioning heat load for air conditioning of the vehicle air conditioner is small and the air conditioning capability of the vehicle air conditioner is low, the air conditioning capability of the heating / cooling device for seat air conditioning is also set low.

[0004]

However, in the conventional vehicle seat air-conditioning system, when the air-conditioning capability of the vehicle air-conditioning system is high, the excess air-conditioning capability is sent to the air outlet of the seat. The vehicle is overcooled and overheated in winter, which greatly deviates from the sensation of heat on the seat surface desired by the occupant, and causes a problem that the occupant is uncomfortable. In addition, in the vehicle seat air conditioner in which the conditioned air that has been conditioned in the vehicle air conditioner is sent to the air outlet of the seat to air-condition the seat surface, the above-described problem becomes more prominent.

Japanese Patent Laid-Open Publication No. Hei 10-297243 discloses that the air conditioning state of a vehicle interior by a vehicle air conditioner is changed in accordance with a change in a set value of a seat blowing temperature on a heating and cooling device side for a seat air conditioner. However, since the air-conditioning state of the passenger compartment by the vehicle air-conditioning device does not become a desired air-conditioning state, there is a problem that other passengers sitting on a seat having no seat air-conditioning feel uncomfortable.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle seat air conditioner capable of maintaining a desired seat surface warmth desired by an occupant seated in a seat having a seat air conditioner even when the air condition in a vehicle compartment is changed. Is to provide. Also,
Even if an occupant seated in a seat having seat air conditioning changes a desired seat surface thermal sensation, a vehicle seat air conditioner capable of maintaining a desired air conditioning state in a passenger compartment by another occupant not having seat air conditioning is provided. To provide.

[0007]

According to the first aspect of the present invention, even if the air conditioning capacity of the vehicle air conditioner is high, or if the air conditioning state in the passenger compartment is changed from the initial state,
The blow-out temperature varying means and the seat air-conditioning blower are controlled so that the desired seat surface heat feeling set by the seat air-conditioning temperature adjustment setting means is obtained. That is, since the seat air-conditioning blow-out temperature of the air-conditioning air blown from the seat surface of the vehicle and the airflow of the air-conditioning air are controlled to have a desired seat surface warm feeling, an occupant seated in the seat having the seat air-conditioning is desired. The seat surface can be kept warm. Thereby, the occupant sitting on the seat having the seat air conditioning does not feel uncomfortable.

Further, even when an occupant seated in a seat having a seat air conditioner changes a desired seat surface thermal sensation, the air conditioning capacity of the vehicle air conditioner does not change accordingly, so the seat air conditioner is not provided. It is possible to maintain the air condition in the passenger compartment desired by other occupants. This allows
It does not cause discomfort to other occupants who do not have seat air conditioning.

According to the second aspect of the present invention, the cooling / heating mode of the vehicle air conditioner is determined from the air conditioning state of the vehicle interior detected by the air conditioning state detecting means. The temperature of the air-conditioned air blown out of the air-conditioned air blown from the seat surface of the vehicle and the amount of the air-conditioned air are controlled so as to give a sense of comfort.

According to the third aspect of the present invention, the seat air-conditioning blow-out temperature is estimated from the air-conditioning state in the passenger compartment detected by the air-conditioning state detecting means. The temperature of the air-conditioned air blown out of the air-conditioned air blown from the seat surface of the vehicle and the amount of the air-conditioned air are controlled so as to provide a feeling of surface temperature.

According to the fourth aspect of the present invention, the vehicle air-conditioning blow-out temperature is estimated from the air-conditioning state in the vehicle compartment detected by the air-conditioning state detecting means, and the seat air-conditioning blow-out temperature is estimated from the estimated vehicle air-conditioning blow-out temperature. Then, with respect to the estimated seat air-conditioning blow-out temperature, a desired seat surface thermal sensation is obtained.
The temperature of the air-conditioned air blown from the seat surface of the vehicle and the amount of the air-conditioned air are controlled.

According to the fifth aspect of the present invention, the desired temperature is obtained by using the relationship between at least one of the temperature of the air-conditioned air blown from the surface of the seat, the amount or speed of the air-conditioned air flowing toward the surface of the seat, and the temperature control feeling. The seat air-conditioning blow-out temperature of the air-conditioning air blown from the seat surface of the vehicle and the amount of the air-conditioning air are controlled so that the seat surface warm feeling is obtained.

According to the sixth aspect of the present invention, as the blow-out temperature variable means, an air-conditioning air suction port for sucking the air-conditioning air blown from the vehicle air conditioner, and an indoor air suction for sucking the indoor air from the vehicle interior. A room and an indoor air switching door for changing the degree of opening between the air-conditioned air intake and the indoor air intake are provided. Thereby, for example, by changing the opening degree of the indoor air switching door so as to obtain a desired seat surface warm feeling,
By changing the mixing ratio between the conditioned air blown from the vehicle air conditioner and the indoor air sucked from the vehicle interior, the temperature of the air-conditioned air blown from the seat surface of the vehicle becomes a comfortable blow-out temperature.

According to the seventh aspect of the present invention, the auxiliary heating / cooling means is disposed in the ventilation path for air conditioning of the seat, so that the air fed to the surface of the seat can be heated, for example, so as to have a desired thermal feeling on the surface of the seat. Alternatively, by cooling, the seat air-conditioning blow-out temperature of the conditioned air blown out from the seat surface of the vehicle becomes a comfortable blow-out temperature.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Configuration of First Embodiment] FIGS. 1 to 10 show a first embodiment of the present invention.
FIG. 2 shows a schematic structure of a vehicle seat air conditioner.
FIG. 2 is a diagram showing a vehicle air conditioning control device and a seat air conditioning control device.

The vehicle air conditioner according to the present embodiment is provided with a vehicle air conditioner (hereinafter, referred to as a vehicle air conditioner) for air conditioning the interior of a vehicle such as an automobile equipped with a traveling engine or a traveling motor. The vehicle is controlled by the vehicle air-conditioning ECU 2 so that the temperature in the vehicle compartment is automatically controlled to always maintain the set temperature.

Further, in the vehicle seat air conditioner of the present embodiment, air-conditioned air is guided from the vehicle air conditioner 1 and each air conditioner of a seat air conditioner unit 4 disposed below, for example, a front seat (front seat) 3. Is controlled by a seat air-conditioning control device (hereinafter referred to as a seat air-conditioning ECU) 5 so that the thermal sensation on the seat surface of the front seat 3 (seat thermal sensation) is always maintained at the seat sensation desired by the front passenger. It is configured to control automatically.

The vehicle air conditioner 1 is equivalent to a vehicle air conditioner for cooling and heating (air conditioning) the interior of the vehicle. ) An air conditioner case 13 having a hot air passage 12 communicating with the outlet side is formed.

In the air conditioner case 13, a vehicle air conditioner blower 14, which generates an airflow toward the vehicle interior,
A cooling heat exchanger (not shown) for cooling the air blown by the vehicle air-conditioning blower 14 and a heating heat exchanger (figure) for heating the air blown by the vehicle air-conditioning blower 14 (Not shown). As the cooling heat exchanger, for example, an evaporator that cools the interior of the vehicle using the rotational power of a traveling engine is used. Further, as the heating heat exchanger, a heater core for heating the interior of the vehicle cabin by using the cooling water of the traveling engine is used.

As shown in FIG. 2, the blower 14 for air-conditioning the vehicle has a centrifugal fan 15 for generating an airflow toward the passenger compartment in the air-conditioner case 13, and the centrifugal fan 15 is rotationally driven. Blower motor 1
6, etc., for forcibly blowing the air sucked from the outside air suction port or the inside air suction port (neither is shown) into the vehicle interior.

The blower motor 16 controls the amount of air to be blown (the rotation speed of the centrifugal fan 15) based on a blower control voltage (hereinafter referred to as a blower level) applied through, for example, a blower drive circuit (not shown). Is done. Here, the air volume of the vehicle air-conditioning air (air-conditioning air) is, for example, 560 m ³ / h when the blower level is the Hi level, and the blower level is the L level.
For example, it is 250 m ³ / h at the o level.

Furthermore, a defroster (DEF) outlet for blowing out conditioned air into the vehicle interior and a face (FACE) are provided downstream of the air conditioner case 13 of the vehicle air conditioner 1.
A mode switching door 17 that switches an outlet mode by opening and closing an outlet and a foot (FOOT) outlet (both not shown) is provided. The mode switching door 17 is driven by an actuator 18 such as a servomotor as shown in FIG.

Here, the outlet mode is such that the DEF outlet, the FACE outlet and the FOOT outlet are selectively opened by the mode switching door 17.
FACE mode that opens only the FACE outlet, FA
B / L mode to open CE outlet and FOOT outlet, FOOT mode to open only FOOT outlet,
A D / F mode in which the DEF outlet and the FOOT outlet are opened and a DEF mode in which only the DEF outlet is opened are generally used.

The front seat 3 is disposed on the front side in the traveling direction of the vehicle, and is a driver-side seat on which a driver (driver) who is a front seat occupant sits, and an assistant (passenger) which is a front seat occupant. Is a passenger side seat to be seated, and is constituted by a seat cushion 6 and a seat back 7, respectively. The seat cushion 6 and the seat back 7 are covered with seat surface materials 8 and 9 having air permeability, respectively.

Then, inside the seat cushion 6,
In-seat ventilation path 21 connected to the air downstream side of seat air conditioning unit 4, and a plurality of air outlets 2 branching off from in-seat ventilation path 21 and extending to the surface of seat cushion 6.
2 are provided. Further, inside the seat back 7, a plurality of air passages 23 connected to the air downstream side of the air passages 21 in the seat and a plurality of air branched from the air passages 23 extending to the surface of the seat back 7. Outlet 24
Is provided.

Thus, the conditioned air supplied from the seat air-conditioning unit 4 is distributed to the air outlets 22 and 24 through the air passages 21 and 23 in the seat, and the air-conditioned holes 2 and 24 are supplied to the air outlets 2 and 24.
It is sprayed from the seats 2 and 24 to the buttocks and the back of the front-seat occupant sitting on the front seat 3 after passing through the seat surface members 8 and 9.

A communication passage 25 communicating with the air downstream of the seat air conditioning unit 4 is provided upstream of the air passage 21 in the seat. In addition, the ventilation path 23 in the seat
A communication path 26 communicating with the air downstream side of the in-sheet ventilation path 21 is provided on the upstream side of the air. In the vehicle seat air conditioner of the present embodiment, a seat air conditioning unit is not provided on a rear seat (not shown) disposed on the rear side in the traveling direction of the vehicle.

The seat air-conditioning unit 4 is a vehicle air conditioner 1
A sheet air duct 31 connected to the air downstream side of the air conditioner case 13, a sheet air conditioner case 32 connected to the air downstream side of the sheet air duct 31, and a sheet air conditioner accommodated in the sheet air case 32 Blower 34
And

The seat air duct 31 is disposed, for example, along the floor of the vehicle, and the cold air passage 1 of the vehicle air conditioner 1 is provided.
1, a cool air passage 42 communicating with the warm air passage 12, a cool air passage 41 and a warm air passage 42.
And a cold / hot air switching door 43 for adjusting the ratio of the opening. The cold / hot air switching door 43 is driven by an actuator 44 such as a servomotor.

The seat air-conditioning case 32 is used for the vehicle air-conditioning system 1.
Air-conditioning air inlet 45 for sucking air-conditioning air from the vehicle, indoor air suction port 46 for sucking vehicle interior air, and a room for adjusting the opening ratio between the air-conditioning air suction port 45 and the indoor air suction port 46 And a wind switching door 47. The indoor air switching door 47 is provided with an actuator 48 such as a servomotor.
Driven by 49 is a seat air-conditioning case 32
It is a ventilation path for seat air conditioning formed inside. The air passages 21, 23, the communication passages 25, 26, the cool air passage 41, the warm air passage 42, and the air conditioning passage 49 are provided in the seat.
Thereby, the ventilation path for seat air conditioning of the present invention is configured.

The seat air-conditioning blower 34 comprises a centrifugal fan 35 for generating an airflow toward the front seat 3 in the seat air-conditioning case 32, a blower motor 36 for rotating the centrifugal fan 35, and the like. The air sucked from the port 45 or the indoor air suction port 46 is forcibly blown to the front seat 3.

The blower motor 36 controls the amount of air to be blown (the rotation speed of the centrifugal fan 35) based on a blower control voltage (hereinafter referred to as a blower level) applied through, for example, a blower drive circuit (not shown). Is done. Here, the air flow rate of the sheet air-conditioning air is, for example, 50 m ³ / h when the blower level is at the Hi level, and is, for example, 10 m ³ / h when the blower level is at the Lo level.

The seat air-conditioning ECU 5 corresponds to the seat air-conditioning control means of the present invention, and has a microcomputer including a CPU, a ROM, a RAM, and the like, like the vehicle air-conditioning ECU 2, and receives sensor signals from various sensors. A / D conversion is performed by a circuit (not shown) and then input to the microcomputer.

The vehicle air conditioning ECU 2 includes a temperature setting switch 5
1. Switch signals from various switches such as an auto (AUTO) switch 52, an inside air temperature sensor 53 for detecting a vehicle interior air temperature (indoor temperature), an outside air temperature sensor 54 for detecting an outside air temperature (outdoor temperature), The target air temperature (vehicle air conditioning TAO) of the conditioned air blown into the vehicle interior is calculated based on sensor signals from various sensors (air conditioning state detecting means) such as the solar radiation sensor 55 that detects the amount of solar radiation entering the vehicle interior. Then, based on the calculation result of the vehicle air conditioner TAO, the blower level applied to the blower motor 16 of the vehicle air conditioner blower 14 and the actuator 18 of the mode switching door 17 are controlled.

The temperature setting switch 51 is a temperature setting means for setting the temperature in the passenger compartment to a desired temperature. The AUTO switch 52 is a switch for instructing automatic control of the temperature in the passenger compartment and the airflow of the air conditioner. The inside air temperature sensor (inside air temperature detecting means) 53 and the solar radiation sensor (solar radiation amount detecting means) 55
This is a heat load detecting means for detecting an air conditioning heat load of the internal environment. The outside air temperature sensor (outside air temperature detecting means) 54
This is a heat load detecting means for detecting an air conditioning heat load of an external environment.

The seat air-conditioning ECU 5 includes a vehicle air-conditioning ECU 2
A determination result of the outlet mode of the vehicle air conditioner 1 or an outlet mode signal, a target outlet temperature (vehicle air conditioning TAO) signal, an air volume signal of a vehicle air conditioner blower 14 (air conditioner wind),
Seat warmth setting dial 56, seat air-conditioning operation ON
Based on switch signals from various switches such as an OFF switch 57, the blower level applied to the blower motor 36 of the air conditioner blower 34, the actuator 44 of the cold / hot air switching door 43, and the actuator 48 of the indoor air switching door 47 are controlled. I do.

Among them, the dial for setting the thermal sensation on the sheet surface 56
Is a seat temperature control setting means for setting a seat surface thermal sensation of the front seat 3, which is provided on the driver's seat side and the passenger's seat side, respectively. . The seat air-conditioning operation ON-OFF switch 57 is a seat air-conditioning main switch that issues an operation command or a stop command for each air-conditioning unit of the seat air-conditioning unit 4.

[Control Method of First Embodiment] Next, a control method of the vehicle seat air conditioner of the present embodiment will be briefly described with reference to FIGS. Here, FIG. 3 is a flowchart showing an example of a basic control program of the seat air-conditioning ECU 5.

First, in the vehicle air-conditioning ECU 2, a temperature setting switch 51, an inside air temperature sensor 53, and an outside air temperature sensor 54
Based on the solar radiation sensor 55, the target blow-out temperature of the conditioned air blown into the vehicle compartment (vehicle air-conditioning TAO) is calculated.
The calculated vehicle air conditioning TAO is read into the seat air conditioning ECU 5 (step S1).

Next, the vehicle heat load data is read. Specifically, via the vehicle air conditioning ECU 2, a vehicle air conditioning set temperature signal from the temperature setting switch 51, an internal air temperature (vehicle interior temperature) signal from the internal air temperature sensor 53, and a solar radiation sensor 55
Is read (step S2).

Next, the vehicle air conditioning cooling / heating mode is determined.
Specifically, the vehicle air conditioning ECU 2 determines the air conditioning mode based on the determination result of the air outlet mode based on the vehicle air conditioning TAO (step S3). For example, in the FACE mode, the cooling mode, and in the B / L mode, the cooling mode
Heating mode (intermediate mode), FOOT, F / D, DEF
If it is the mode, it is determined to be the heating mode.

Next, the seat air conditioning temperature control setting data is read. More specifically, the controller reads the seat warmth level of the front seat 3 set by the seat warmth setting dial 56 (step S4). For example, as shown in the graph of FIG.
~ "Cool" ~ "Neutral (insensitive)" ~ "Warm" ~ "Hot".

Next, a target thermal feeling on the seat surface is set based on the seat air conditioning temperature control setting data (step S5).
Next, the cooling / heating mode of the seat air conditioning is determined. Specifically, the sheet surface is set to “neutral” by using the warmth setting dial 56.
It is determined whether the state is the cooling side or the heating side from the state (step S6).

Next, the air conditioning air flow rate Hi (50 m ³ /
The target air-conditioning blow-out temperature (THi) at the time of h) is set (step S7). Next, the sheet air-conditioning air volume Lo (10 m
The target sheet air-conditioning blow-out temperature (TLo) at ³ / h) is set (step S8). Next, an actual outlet temperature of the vehicle air conditioner is estimated from the vehicle air conditioner TAO read in step S1 (step S9). For example, the actual outlet temperature of the vehicle air-conditioner at the time of MAX · COOL is about 7 ° C.
The actual blowing temperature of the vehicle air conditioner at the time of OT is about 55 ° C.

Next, taking into account the temperature increase due to the cooling heat load to the front seat 3 or the temperature decrease due to the heating heat load from the actual air-conditioning temperature of the vehicle air-conditioning estimated at step S9, the seat air-conditioning air-conditioning temperature (To ) Is estimated (step S10). Next, a seat air-conditioning blower level is set based on the seat air-conditioning blowout temperature (To) estimated in step S10 (step S11). Next, by adjusting the mixing ratio of the vehicle air-conditioned air and the seat air-conditioned indoor air,
The seat air-conditioning blowing temperature is changed (step S12).

Next, a brief description will be given of seat air-conditioning blow-out temperature control by the seat air-conditioning ECU 5 in the cooling mode. Here, FIG. 5 is a flowchart showing a seat air conditioning blow-out temperature control program in the cooling mode.

If the result of the determination in step S3 is the vehicle air-conditioning cooling mode and the result of the determination in step S6 is the seat air-conditioning cooling mode, the cold / hot air switching door 4
3 is driven so as to fully open the cold air passage 41 of the sheet air duct 31 and completely close the warm air passage 42. First, the seat air-conditioning blow-out temperature (T
It is determined whether or not o) is higher than the target seat air-conditioning blowout temperature (THi) at the time of the seat air-conditioning air flow Hi (step S21).

If the decision result in the step S21 is YES, the seat blower air volume of the seat air blower 34 is fixed to "Hi". That is, the blower level applied to the blower motor 36 of the sheet air-conditioning blower 34 is set to “H”.
i "(step S22).

Next, by controlling the actuator 48, the indoor air switching door 47 is set to the vehicle air-conditioning air side, and the seat air-conditioning blow-out temperature is controlled. That is, the air-conditioning air suction port 45 is fully opened, and the indoor air suction port 46 is fully closed (step S).
23).

On the other hand, if the decision result in the step S21 is NO, the seat air-conditioning outlet temperature (To) estimated in the step S10 is higher than the target seat air-conditioning outlet temperature (TLo) at the time of the seat air-conditioning air volume Lo, and It is determined whether or not the seat air-conditioning blowout temperature (To) is lower than or equal to the target seat air-conditioning blowout temperature (THi) at the time of the seat air-conditioning airflow Hi (step S24).

If the decision result in the step S24 is YES, the seat blower air volume of the seat air blower 34 is continuously or stepwise reduced from "Hi" to "Lo". That is, the blower level applied to the blower motor 36 of the sheet air-conditioning blower 34 is changed from “Hi” to “Lo”.
(Step S2)
5). Next, the process proceeds to a control process in step S23.

If the result of the determination in step S24 is NO, the seat blower air volume of the seat air blower 34 is fixed at "Lo". That is, the blower level applied to the blower motor 36 of the sheet air-conditioning blower 34 is set to “L”.
o "(step S26).

Next, the actuator 48 is controlled to set the indoor air switching door 47 to the indoor air side. That is, the air-conditioning air inlet 45 and the indoor air inlet 46 are opened (Step S27). Next, the mixture ratio of the indoor air and the vehicle air-conditioning air is controlled to control the seat air-conditioning blowout temperature (step S).
28).

Next, a brief description will be given of the seat air-conditioning blow-out temperature control in the heating mode by the seat air-conditioning ECU 5. Here, FIG. 6 is a flowchart showing a seat air-conditioning blow-out temperature control program in the heating mode.

If the result of the determination in step S3 is the vehicle air-conditioning / heating mode, and the result of the determination in step S6 is the seat air-conditioning / heating mode, the cold / hot air switching door 4
3 is driven so that the warm air passage 42 of the sheet air duct 31 is fully opened and the cold air passage 41 is fully closed. First, the seat air-conditioning blow-out temperature (T
It is determined whether or not o) is lower than the target seat air-conditioning blowing temperature (THi) at the time of the seat air-conditioning air flow Hi (step S31).

If the decision result in the step S31 is YES, the seat blower air volume of the seat air-conditioning blower 34 is fixed to "Hi". That is, the blower level applied to the blower motor 36 of the sheet air-conditioning blower 34 is set to “H”.
i "(step S32).

Next, by controlling the actuator 48, the indoor air switching door 47 is set to the vehicle air-conditioning air side, and the seat air-conditioning blow-out temperature is controlled. That is, the air-conditioning air suction port 45 is fully opened, and the indoor air suction port 46 is fully closed (step S).
33).

If the determination result in step S31 is NO, the seat air-conditioning blow-out temperature (To) estimated in step S10 is higher than the target seat air-conditioner blow-out temperature (THi) at the time of the seat air-conditioning air flow Hi, and It is determined whether the seat air-conditioning blowout temperature (To) is lower than the target seat air-conditioning blowout temperature (TLo) at the time of the seat air-conditioning air volume Lo (Step S34).

If the decision result in the step S34 is YES, the seat blower air volume of the seat air-conditioning blower 34 is continuously or stepwise reduced from "Hi" to "Lo". That is, the blower level applied to the blower motor 36 of the sheet air-conditioning blower 34 is changed from “Hi” to “Lo”.
(Step S3)
5). Next, the process proceeds to a control process of step S33.

If the decision result in the step S34 is NO, the seat blower air volume of the seat air blower 34 is fixed to "Lo". That is, the blower level applied to the blower motor 36 of the sheet air-conditioning blower 34 is set to “L”.
o "(step S36).

Next, the actuator 48 is controlled to set the indoor air switching door 47 to the indoor air side. That is, the air-conditioning air inlet 45 and the indoor air inlet 46 are opened (Step S37). Next, the mixture ratio of the indoor air and the vehicle air-conditioning air is controlled to control the seat air-conditioning blowout temperature (step S).
38).

[Operation of First Embodiment] Next, the operation of the vehicle seat air conditioner of this embodiment will be briefly described with reference to FIGS.

A) In the case of the vehicle air-conditioning cooling mode The case of the cool-down control of the vehicle air-conditioning system 1 will be described below. At this time, if the seat air conditioning operation is ON by the seat surface warm feeling setting dial 56 or the seat air conditioning operation ON-OFF switch 57, the cooling / heating mode of the front seat 3 is determined. Here, for example, when the initial vehicle air conditioning TAO of the vehicle air conditioner 1 is a low value, the air conditioning state in the vehicle interior is determined to be the vehicle air conditioning cooling mode, and the seat air conditioning unit 4 operates as follows.

Therefore, the cold air passage 1 of the vehicle air conditioner 1
Part of the cool air is distributed from 1 and flows through the cool air ventilation path 41 to the in-seat ventilation paths 21 and 23 of the front seat 3. At this time, the actuator 44 is
The cold / hot air switching door 43 is driven to a position where the hot air vent 1 is opened (a position where the hot air passage 42 is closed). The actuator 48 is provided on the side that opens the air-conditioning air suction port 45 (the indoor air suction port 46).
(The side that closes the air conditioner), the indoor air switching door 47 is driven, and the cool air from the vehicle air conditioner 1 reaches the centrifugal fan 35 of the air conditioning blower 34 in the seat air conditioning case 32.

As a result, the cool air that has reached the centrifugal fan 35 of the sheet air-conditioning blower 34 is
5, 26 and the air passages 21 and 23 in the seat,
The cool air is distributed to the respective air outlets 22 and 24, blows out from the respective air outlets 22 and 24 through the seat surface members 8 and 9, and the front seat occupant sitting on the front seat 3 is cooled.

Here, the temperature of the vehicle air-conditioned air blown out from the FACE air outlet of the vehicle air conditioner 1 shows a high temperature at the beginning of the cool-down control, but decreases with time to reduce the vehicle interior temperature (internal air temperature). ) Also decreases. At the same time, the blower motor 16 of the vehicle air conditioner blower 14 of the vehicle air conditioner 1
Blower level also decreases, and the air volume decreases. But,
If the air-conditioning heat load (cooling heat load) in the cabin of the vehicle is high, the blowout temperature of the vehicle air-conditioning air becomes MAX · COOL, and the temperature of the front seat 3 to be sent to the air passages 21 and 23 in the seat remains low. . If this continues, the seat surface of the front seat 3 will be too cold, and the occupant on the front seat side will be uncomfortable due to the coldness.

In the present embodiment, the air conditioning air flow rate of the seat,
An experimental result has been obtained in which the air conditioning blow-out temperature and the thermal sensation on the seat surface become as shown in the graph of FIG. 4 when the air conditioning is stable.

At this time, the actual air-conditioning temperature of the vehicle air conditioner 1 is estimated from the vehicle air-conditioning TAO signal, and the seat air-conditioning air-conditioning temperature taking into account the temperature rise due to the air-conditioning heat load up to the front seat 3 from the estimated air temperature signal. (To) is estimated. Based on the estimated seat air-conditioning blow-out temperature (To), the blower level applied to the blower motor 36 of the seat air-conditioning blower 34, the actuator 44 of the cold / hot air switching door 43, and the actuator 48 of the indoor air switching door 47
Control.

If the estimated air-conditioning blow-out temperature is still higher than a certain value, the blower level of the blower motor 36 of the air-conditioning blower 34, that is, the air volume is increased to quickly reduce the heat of the front seat 3. Then, when the vehicle interior temperature decreases and the actual blow temperature of the vehicle air-conditioning air blown out of, for example, the FACE air outlet of the vehicle air-conditioning device 1 decreases, the seat air-conditioning blowing temperature sent from the cold air passage 11 of the vehicle air-conditioning device 1 accordingly. Also declines.

Then, the point A at which the temperature of the seat air-conditioning blow-off is reduced and the thermal sensation becomes “cool” when the blower level of the blower motor 36 of the seat air-conditioning blower 34 is high is determined from the graph of FIG. If it is lower than this, the seat air conditioning blower level is lowered to maintain the warm feeling (point B in the graph of FIG. 7).

In the graph of FIG. 7 and the time chart of FIG. 8, the relationship between the two points of the sheet air-conditioning blowout temperature and the seat air-conditioning blower level is shown. May be used.

Further, if the temperature of the seat air-conditioning blow-off decreases and the blower level is lowered to a "low" state even when the blower level is reduced to a minimum level, the indoor air switching door 47 for the seat air-conditioning is driven to drive the vehicle air-conditioning system 1. Part of the indoor air having a higher temperature than the vehicle air-conditioning air is sucked and mixed with the vehicle air-conditioning air to maintain the seat air-conditioning blow-out temperature at point B in the graph of FIG.

Furthermore, if the ratio of the indoor air is increased and only the indoor air is finally used, the wind becomes about 25 ° C., so that the front passenger does not feel uncomfortable. Further, when the seat surface warm feeling of the front seat 3 is stably controlled by the cool air or the cool air and the indoor air, and when the blowout temperature of the vehicle air conditioning further decreases due to an increase in the heat load of the external environment or the like. In the same manner as above, the air-conditioning blow-out temperature is kept constant by reducing the air volume and increasing the air volume ratio of the indoor air, and the seat surface warm feeling is maintained.

When the front seat occupant manually operates the seat surface warm feeling setting dial 56 to change from the neutral state to the cooling side, the setting value of the seat surface warm feeling is changed according to the change of the set value of the seat surface warm feeling. The target value of the sheet surface thermal sensation level in the graph is shifted to the “cold” side. Accordingly, as described above, the seat air conditioning blower level is reduced, and the cool air from the vehicle air conditioner 1 and the indoor air are mixed to control the seat air conditioning blow-out temperature.

Conversely, when the front seat occupant manually operates the seat surface thermal sensation setting dial 56 to change from the neutral state to the heating side, the setting value of the seat surface thermal sensation is changed according to the change of the set value of the seat surface thermal sensation. Shifts the target value of the sheet surface thermal sensation level in the graph of FIG. Accordingly,
Controls the air conditioning blower level and the air conditioning blowout temperature.

Since the "warm" side requires a high seat air-conditioning blow-out temperature, switching from only vehicle air-conditioning air to indoor air mixing is performed early after the start of the cool-down control to control the seat air-conditioning blow-out temperature. I do. Further, since the temperature in the passenger compartment is reduced, the level of the seat air-conditioning blower is lowered to maintain the warmth of the seat surface.

Thereafter, even when the seat air-conditioning blower level is at the minimum level, if the temperature in the cabin decreases, the front passenger feels cool. Therefore, the blower motor 36 of the seat air-conditioning blower 34 is turned off to rotate the centrifugal fan 35. Is stopped, the blowing of the front seat 3 to the air passages 21 and 23 in the seat is stopped, so that the front seat 3 is not excessively cooled. Alternatively, an air heating unit such as a PTC heater may be provided in the ventilation path, and the amount of heat of the air heating unit and the amount of air blown by the sheet air-conditioning blower 34 may be controlled so as to reach the target blowing temperature.

(B) In the case of the vehicle air-conditioning / heating mode The case of the warm-up control of the vehicle air-conditioning system 1 will be described below. At this time, if the seat air conditioning operation is ON by the seat surface warm feeling setting dial 56 or the seat air conditioning operation ON-OFF switch 57, the cooling / heating mode of the front seat 3 is determined. Here, for example, when the initial vehicle air conditioning TAO of the vehicle air conditioner 1 is a high value, it is determined that the vehicle is in the air conditioning heating mode, and the seat air conditioning unit 4 operates as follows.

A part of the warm air is distributed from the warm air passage 12 of the vehicle air conditioner 1 and flows through the warm air passage 42 to the in-seat air passages 21 and 23 of the front seat 3. The actuator 44 moves the cold / hot air switching door 4 to a position where the hot air passage 42 is opened (a position where the cold air passage 41 is closed).
3 is driving. Further, the actuator 48 is on the side that opens the air-conditioning air suction port 45 (the side that closes the indoor air suction port 46).
The indoor air switching door 47 is driven in the vehicle air conditioner 1
From the air-conditioner reaches the centrifugal fan 35 of the seat air-conditioning blower 34 in the seat air-conditioning case 32.

As a result, the hot air that has reached the centrifugal fan 35 of the sheet air-conditioning blower 34 is
5, 26 and the air passages 21 and 23 in the seat,
The warm air is distributed to the respective air outlets 22 and 24 and blows out from the respective air outlets 22 and 24 through the seat surface members 8 and 9, so that the front seat occupant sitting on the front seat 3 is warmed.

Here, the outlet temperature of the vehicle conditioned air blown out from the FACE outlet of the vehicle air conditioner 1 shows a low temperature at the beginning of the warm-up control, but rises with time to increase the vehicle interior temperature (internal air temperature). ) Also rises. At the same time, the blower level of the blower motor 16 of the vehicle air-conditioning blower 14 decreases, and the air volume decreases.

However, when the air-conditioning heat load in the cabin of the vehicle (heating heat load, environmental temperature is low, etc.) is high, the blowing temperature of the vehicle air-conditioning air is MAX HOT, and the temperature of air blown to the front seat 3 is Will remain high. If this continues, the seat surface of the front seat 3 becomes too warm, and the occupant on the front seat side becomes uncomfortable due to the heat.

At this time, the actual air-conditioning temperature of the vehicle air conditioner 1 is estimated from the vehicle air-conditioning TAO signal, and the air-conditioning air temperature of the seat air-conditioning system is calculated by taking into account the temperature decrease due to the air-conditioning heat load up to the front seat 3 from the estimated air temperature signal. Is estimated. Based on the estimated seat air-conditioning blow-out temperature (To), the blower level applied to the blower motor 36 of the seat air-conditioning blower 34 and the actuator 4 of the cold / hot air switching door 43
4. The actuator 48 of the indoor air switching door 47 is controlled.

If the estimated air-conditioning blow-out temperature is still lower than a certain value, the blower level of the blower motor 36 of the air-conditioning blower 34, that is, the air volume is increased to reduce the cooling of the front seat 3 quickly. Then, when the vehicle interior temperature rises and the actual blowout temperature of the vehicle air-conditioning air blown from, for example, the FOOT outlet of the vehicle air-conditioning system 1 rises, the seat air-conditioning air blown out from the hot air passage 12 of the vehicle air-conditioning system 1 accordingly. The temperature rises.

Then, a point C at which the seat surface thermal sensation becomes a “warm” level in a state where the blower level of the blower motor 36 of the blower for seat air conditioning 34 is high is determined from FIG. If it rises higher, the seat air-conditioning blower level is lowered to maintain the seat surface warm feeling (point D in the graph of FIG. 9).

Note that the graph of FIG. 9 and the time chart of FIG. 10 show the relationship between two points of the air conditioning blow-out temperature and the seat air-conditioning blower level. May be used.

Further, when the seat air-conditioning blow-out temperature rises and the seat air-conditioning blower level is lowered and becomes the "hot" state even at the minimum level, the indoor air switching door 47 is driven to drive the vehicle air-conditioning system 1. Part of the indoor air having a lower temperature than the vehicle air-conditioning air is sucked and mixed with the vehicle air-conditioning air to maintain the seat air-conditioning blowing temperature at point D in the graph of FIG.

Furthermore, if the ratio of the indoor air is increased and only the indoor air is finally used, the wind will be at a temperature of about 30 ° C., so that the front passenger will not feel uncomfortable. Further, when the seat surface thermal sensation of the front seat 3 is stably controlled by the warm air or the warm air and the indoor air, and the blowing temperature of the vehicle air conditioner further increases due to an increase in the heat load of the external environment or the like. In the same manner as above, the air flow is decreased and the air flow rate of the indoor air is increased to keep the air-conditioning blow-out temperature constant and maintain the warmth of the seat surface.

When the front seat occupant manually operates the seat surface warm feeling setting dial 56 to change from the neutral state to the heating side, the setting value of the seat surface warm feeling is changed according to the change of the set value of the seat surface warm feeling. The target value of the thermal sensation level in the graph is shifted to the “hot” side. Accordingly, as described above, the seat air conditioning blower level is lowered, and the hot air from the vehicle air conditioner 1 and the indoor air are mixed to control the seat air conditioning blowout temperature.

Conversely, when the front seat occupant manually operates the seat surface warm feeling setting dial 56 to change from the neutral state to the cooling side, the setting change is made in accordance with the change in the set value of the seat surface warm feeling. The target value of the thermal sensation level in the graph of FIG. 9 is shifted from “neutral” to “cool” according to the value. The seat air conditioning blower level and the seat air conditioning blowout temperature are controlled accordingly.

Since the "cool" side requires a low seat air-conditioning blowout temperature, switching from only vehicle air-conditioning air to indoor air mixing is performed early after the warm-up control is started to control the seat air-conditioning blowout temperature. I do. Further, since the temperature in the vehicle interior increases, the level of the seat air-conditioning blower is lowered to maintain the seat surface warm feeling.

Thereafter, even when the seat air-conditioning blower level is at the minimum level, if the passenger compartment temperature rises, the front passenger feels warmth. Therefore, the blower motor 36 of the seat air-conditioning blower 34 is turned off to rotate the centrifugal fan 35. By stopping, the blowing of the front seat 3 to the air passages 21 and 23 in the seat is stopped, so that the front seat 3 is not excessively heated. Alternatively, an air cooling means such as a Peltier element may be provided in the ventilation path, and the amount of heat of the air cooling means and the amount of air blown by the sheet air-conditioning blower 34 may be controlled so as to reach the target blowing temperature.

C) In the case of the vehicle air-conditioning intermediate mode The vehicle air-conditioning system 1 sends the cold air passage 1 on the FACE outlet side.
Part of the hot air flowing through the hot air passage 12 on the FOOT outlet side and part of the hot air flowing through the hot air passage 12 on the side of the FOOT outlet are distributed to the in-sheet air passages 21 and 23 of the front seat 3, and the cool air air passage 41 and the warm air air The air reaches the upstream side of the cold / hot air switching door 43 via the path 42.

When the vehicle air conditioner TAO of the vehicle air conditioner 1 is in the intermediate level (bi-level) mode at the start of operation and the seat surface warm feeling setting of the seat air conditioner is at the cooling side or the neutral position, the cold / hot air switching door 43 is set. Is driven to open the cool air passage 41, and the cool air passage 11 and the cool air passage 41 are
The cold air that has passed through the
1, 23 are sent.

Then, as in the summer cooling mode, when the estimated seat air-conditioning blow-out temperature (To) decreases, the seat air-conditioner blower level decreases, and the indoor air switching door 4
7 is controlled to adjust the mixing ratio of the cool air, which is the vehicle air-conditioning air, and the indoor air, so that the target air-conditioning air outlet temperature is attained.

In this case, the target seat air-conditioning blow-out temperature may be created by adjusting the opening ratio between the cool-air passage 41 and the hot-air passage 42 by the cool / hot air switching door 43.
Alternatively, the indoor air switching door 47 may be driven to open only the indoor air suction port 46 so that only the indoor air is supplied to the front seat 3 as the conditioned air.

When the vehicle air conditioner TAO of the vehicle air conditioner 1 is in the intermediate level mode at the start of operation and the seat surface warm feeling setting of the seat air conditioning is on the heating side, the cold / hot air switching door 4
3 is driven to open the warm air passage 42 and the warm air passage 1 is opened.
The cold air that has passed through the hot air passage 2 and the warm air passage 42 is sent to the in-sheet air passages 21 and 23 of the front seat 3.

Then, as the air-conditioning air outlet temperature rises, the indoor air switching door 47 is driven to adjust the mixing ratio of the cold air and the indoor air, which is the vehicle air-conditioning air, to achieve the target seat air-conditioning air outlet temperature. Control.

In this case, the target air conditioning blow-out temperature may be created by adjusting the opening ratio between the cold air passage 41 and the hot air passage 42 by the cold / hot air switching door 43.
Alternatively, the indoor air switching door 47 may be driven to open only the indoor air suction port 46 so that only the indoor air is supplied to the front seat 3 as the conditioned air.

[Effects of the First Embodiment] As described above, in the present embodiment, the actual outlet temperature of the conditioned air blown out of the vehicle air conditioner 1 is estimated based on the vehicle air conditioner TAO, and the estimated vehicle air conditioner outlet is estimated. The seat air-conditioning blow-out temperature (T) taking into account (considering) the temperature rise or temperature fall due to the air-conditioning heat load from the vehicle air conditioner 1 to the front seat 3 from the temperature.
o) is estimated.

By adjusting the seat air-conditioning blower level (seat air-conditioning air volume) and the mixing ratio of vehicle air-conditioning air and indoor air based on the estimated seat air-conditioning blow-out temperature (To), the front seat occupant can adjust the airflow. Seat air-conditioning blower level (seat air-conditioning air volume) so that the set seat surface thermal sensation is achieved
And the seat air-conditioning blowing temperature can be selected. Thereby, the seat surface of the front seat occupant can be comfortably air-conditioned without giving the front seat occupant seated on the front seat 3 capable of seat air conditioning a feeling of overcooling or overheating.

Further, even if the front passenger changes the set value of the seat thermal sensation, it is possible to respond to the desired seat thermal sensation of the front occupant without changing the vehicle air-conditioning capacity of the vehicle air conditioner 1. The selected seat air conditioning blower level and the seat air conditioning blowout temperature can be selected. As a result, in another occupant (for example, a rear occupant) sitting on a seat (for example, a rear seat) on which the seat air conditioning unit 4 is not provided, the front occupant changes the set value of the seat surface thermal sensation. Even in such a case, since the air conditioning capacity of the vehicle air conditioner 1 does not change, a comfortable air conditioning state can be maintained.

[Second Embodiment] FIGS. 11 and 12 show a second embodiment of the present invention. FIG. 11 shows a schematic structure of a vehicle seat air conditioner, and FIG. 12 shows a seat air conditioner. It is a figure showing a control device.

In the first embodiment, the seat air-conditioning blow-out temperature is estimated from the vehicle air-conditioning TAO. However, a seat air-conditioning blow-out temperature sensor 59 is provided in the in-seat ventilation passages 21 and 23 of the front seat 3, and the seat air-conditioning blow-out temperature is set. The same control as in the first embodiment can be performed by detecting the actual seat air-conditioning blowout temperature by the temperature sensor (seat air-conditioning blowout temperature detecting means) 59, and the detection accuracy of the seat air-conditioning blowout temperature is improved. be able to.

[Other Embodiments] In this embodiment, the vehicle seat air conditioner has a structure in which the vehicle air-conditioned air from the vehicle air conditioner 1 is blown to the air passages 21 and 23 in the front seat 3. However, a vehicle seat air-conditioning system having a structure in which indoor air is sucked in and air-conditioned by the air cooling and heating device is sent to the air passages 21 and 23 in the seat of the front seat 3 may be used. Even in this case,
The same control as in the first embodiment can be performed by estimating the indoor air temperature (for example, from the detected value of the internal air temperature sensor) or detecting the indoor air temperature and estimating the seat air-conditioning blowout temperature of the front seat. .

In this embodiment, the vehicle air-conditioning cooling / heating mode is determined based on the determination result of the air-conditioning mode based on the vehicle air-conditioning TAO, but is set by an air outlet mode switching means (not shown) such as an air outlet mode changeover switch. The vehicle air conditioning cooling / heating mode may be determined based on the outlet mode signal itself. Alternatively, the vehicle air-conditioning cooling / heating mode may be determined from the cool-down determination result, the warm-up determination result, or the output signal of the vehicle air conditioner 1.

In this embodiment, a vehicle air-conditioning ECU 2 that calculates vehicle air-conditioning TAO from various sensors as air-conditioning state detecting means for detecting the air-conditioning state of the vehicle interior by the vehicle air-conditioning apparatus 1.
However, the air-conditioning state (for example, the actual vehicle air-conditioning outlet temperature) of the vehicle cabin by the vehicle air conditioner 1 may be detected only by the internal air temperature sensor 53, or the outlet temperature provided at the FACE outlet or the FOOT outlet. The sensor may detect the air-conditioning state of the vehicle interior by the vehicle air-conditioning apparatus 1 (for example, the actual vehicle air-conditioning blow-out temperature).

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a schematic structure of a vehicle seat air conditioner (first embodiment).

FIG. 2 is a block diagram showing a vehicle air conditioning ECU and a seat air conditioning ECU (first embodiment).

FIG. 3 is a flowchart illustrating an example of a control program of a seat air-conditioning ECU (first embodiment).

FIG. 4 is a graph showing a relationship between a seat air-conditioning blowing temperature and a seat surface thermal sensation (first embodiment).

FIG. 5 is a flowchart illustrating a seat air conditioning blow-out temperature control program in a cooling mode (first embodiment).

FIG. 6 is a flowchart showing a seat air-conditioning blow-out temperature control program in a heating mode (first embodiment).

FIG. 7 is a graph showing a relationship between a seat air-conditioning blowing temperature and a seat surface thermal sensation (first embodiment).

FIG. 8 is a time chart showing changes in a seat air conditioning blow-out temperature and a seat air conditioning blower level (first embodiment).

FIG. 9 is a graph showing a relationship between a seat air-conditioning blowing temperature and a seat surface thermal sensation (first embodiment).

FIG. 10 is a time chart showing changes in a seat air conditioning blow-out temperature and a seat air conditioning blower level (first embodiment).

FIG. 11 is a schematic diagram showing a schematic structure of a vehicle seat air conditioner (second embodiment).

FIG. 12 is a block diagram showing a vehicle air conditioning ECU and a seat air conditioning ECU (second embodiment).

[Explanation of symbols]

REFERENCE SIGNS LIST 1 vehicle air-conditioning device 2 vehicle air-conditioning ECU 3 front seat 4 seat air-conditioning unit 5 seat air-conditioning ECU (seat air-conditioning control means) 21 air flow path in seat (air flow path for seat air conditioning) 23 air flow path in seat (air flow path for seat air conditioning) 25 Communication passage (seat air conditioning ventilation passage) 26 Communication passage (seat air conditioning ventilation passage) 34 Seat air conditioning blower 41 Cold air ventilation passage (seat air conditioning ventilation passage) 42 Hot air ventilation passage (seat air conditioning ventilation passage) 45 Air conditioning air Suction port 46 Indoor air suction port 47 Indoor air switching door 49 Ventilation path for seat air conditioning 51 Temperature setting switch (Air conditioning state detecting means) 53 Internal temperature sensor (Air conditioning state detecting means) 54 Outside air temperature sensor (Air conditioning state detecting means) 55 Solar radiation Sensor (air conditioner detection means) 56 Seat surface thermal sensation setting dial (seat air conditioning temperature control setting means)

Continuing from the front page (72) Inventor Yuichi Kajino 1-1-1, Showa-cho, Kariya-shi, Aichi Pref.

Claims (7)

[Claims] (1) a seat air-conditioning ventilation passage for sending air-conditioned air to a vehicle seat surface; and (b) a seat air-conditioning blowing temperature of air-conditioned air blown from the seat air-conditioning ventilation passage to the seat surface. (C) a seat air-conditioning blower for generating air-conditioned air toward the seat surface in the seat air-conditioning ventilation path; and (d) detecting an air-conditioning state of the vehicle interior by the vehicle air-conditioning device. Air conditioning state detecting means; (e) a seat air conditioning temperature control setting means for setting a vehicle seat surface thermal sensation to a desired seat surface thermal sensation; and (f) air conditioning in the vehicle cabin detected by the air conditioning state detecting means. In this state, the air-conditioning control means controls the blow-out temperature varying means and the air-conditioning blower so that the desired seat-surface thermal sensation set by the seat air-conditioning temperature adjustment setting means is obtained. Vehicular seat air-conditioning device provided with a. 2. The vehicle seat air conditioner according to claim 1, wherein the seat air conditioner controller determines a cooling / heating mode of the vehicle air conditioner based on an air condition in the vehicle cabin detected by the air conditioner detector. In the determined cooling / heating mode, the blow-out temperature varying means and the seat air-conditioning blower are controlled so that a desired seat-surface thermal sensation set by the seat air-conditioning temperature adjustment setting means is obtained. Vehicle seat air conditioner. 3. The vehicle seat air conditioner according to claim 1, wherein said seat air conditioning control means estimates a seat air conditioning blow-out temperature from an air conditioning state in the vehicle cabin detected by said air conditioning state detecting means. Then, the blow-out temperature changing means and the seat air-conditioning blower are controlled so that the seat air-conditioning blow-out temperature thus estimated has a desired seat surface thermal sensation set by the seat air-conditioning temperature adjustment setting means. A seat air conditioner for a vehicle, comprising: 4. The vehicle seat air conditioner according to claim 1, wherein said seat air conditioning control means estimates a vehicle air conditioning blow-out temperature from a vehicle interior air conditioning state detected by said air conditioning state detection means. Then, a seat air-conditioning blow-out temperature is estimated from the estimated vehicle air-conditioning blow-out temperature, and the desired seat surface thermal sensation set by the seat air-conditioning temperature adjustment setting means is set to the estimated seat air-conditioning blow-out temperature. A vehicle air conditioning system for controlling the air outlet temperature varying means and the air blower for seat air conditioning. 5. The vehicle seat air conditioner according to claim 1, wherein said seat air conditioning control means includes a seat air conditioning blow-off temperature of the conditioned air blown from said seat surface, and a conditioned air flow toward said seat surface. Using the relationship between at least one of the air volume or the wind speed and the temperature control feeling, the blow-out temperature variable means and the seat air-conditioning means so as to achieve the desired seat surface heat feeling set by the seat air-conditioning temperature control setting means. A vehicle seat air-conditioning system for controlling a blower. 6. A vehicle seat air conditioner according to claim 1, wherein said blow-out temperature varying means is configured to suck air-conditioned air blown from said vehicle air-conditioner. A vehicle seat comprising: a suction port, an indoor air suction port for sucking indoor air from a vehicle interior, and an indoor air switching door for changing an opening degree between the air-conditioned air suction port and the indoor air suction port. Air conditioner. 7. The vehicle seat air conditioner according to any one of claims 1 to 5, wherein the outlet temperature varying means is disposed in the seat air conditioning ventilation passage, and the seat surface is arranged in the air passage. A vehicle air conditioner having auxiliary heating and cooling means for heating or cooling the air sent to the vehicle.