JPH11208261A - Vehicle air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the pleasantness felt by the occupants from being deteriorated when spot cooling is in operation. SOLUTION: While spot cooling is in operation, after starting of a first discharge state wherein the cool air discharged from the driver's side and the passenger's side center and side grilles 41, 42 is concentrated locally around the neck of a passenger within each air conditioning area, when a passenger neck direction fixing time which had been calculated based on the temperature and volume of air discharged that are closely related to spot cooling feel had lapsed, the state is switched to a second discharge state wherein the cool air discharged from the driver's side and the passenger's side center and side grilles 41, 42 is concentrated locally around the shoulder of a passenger within each air conditioning area. When a passenger shoulder direction fixing time corresponding to the passenger neck direction fixing time has lapsed after the state has been changed to the second discharge state, the state of the cool air discharged from the driver's side and the passenger's side center and the side grilles 41, 42 is returned to the first discharged state wherein the cool air is concentrated locally around the neck of the passenger within each air conditioning area.

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 in which conditioned air blown out from an outlet is locally concentrated on a part of an occupant's body.

[0002]

2. Description of the Related Art Conventionally, an air conditioner for a vehicle has air outlets provided on both sides of an instrument panel, and a louver type air flow deflector including a plurality of deflection plates is provided at each of the air outlets. (For example, Japanese Patent Laid-Open No. 57-1500
No. 8 publication). The airflow deflecting device of this vehicle air conditioner has a first set position in which the conditioned air blown out from each outlet is mainly directed to an occupant seated in the front seat, and a first set position in which the conditioned air is diverted from the occupant. It is configured to be able to deflect between the two set positions.

[0003] In the above-described air flow deflector, when cooling down after parking under the scorching sun, that is, when the temperature in the cabin of the vehicle is much higher than the set temperature, the cool air blown out from the air outlet is forcibly forced. It is aimed at a part of the occupant's body. However, if the cold wind is applied for a long time to a part of the occupant's body, for example, the face, there is a hand that holds the steering wheel between the blow grill and the occupant's face.
There was a problem that the skin temperature of the occupant's hand was too low due to the cold air-conditioning air, which caused discomfort to the occupant.

Therefore, for the purpose of solving the above-mentioned problems,
Japanese Patent Application Laid-Open No. Sho 61-12220 discloses a blow mode in which air-conditioning air is blown toward a part of the body of an occupant at a predetermined time determined according to the vehicle interior temperature when the occupant selects the spot blowing mode. A vehicle air conditioner that eliminates the discomfort of the occupant receiving the conditioned air at the same position for a long time by alternately repeating the blowing mode in which the conditioned air is blown toward the body other than the vehicle (conventional technology) ) Has been proposed.

[0005]

However, in the above-mentioned conventional vehicle air conditioner, even if the conditioned air is locally concentrated on a part of the occupant's body until the predetermined time elapses, the predetermined time elapses. Then, since the air-conditioning wind is directed to a part other than the body of the occupant, it becomes extremely hot even during the cool down, which causes a problem that the occupant is uncomfortable.

[0006] Further, the duration of the blowing mode in which the air-conditioning air is blown toward a part of the occupant's body is changed based on the temperature in the passenger compartment, which has a very small effect on local cooling, so that the occupant may feel hot. When the occupant feels cold, the conditioned air may blow out to the occupant's face when the occupant feels cold.
There is a problem that the passenger's demand for cooling feeling cannot be reliably satisfied.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air conditioner for a vehicle which does not impair the occupant's comfort. It is another object of the present invention to provide a vehicle air conditioner that can reliably satisfy a passenger's demand for cooling feeling or heating feeling.

[0008]

According to the first aspect of the present invention, the direction of the conditioned air blown from the air outlet of the air conditioning duct into the passenger compartment is directed to a part of the occupant's body. After the fixed time, the direction of the air-conditioning air blown into the passenger compartment from the outlet of the air-conditioning duct is directed to other parts of the occupant's body. No wind is directed, i.e., the cooling sensation of the occupant during local cooling is not impaired and the occupant does not become very hot. Alternatively, the conditioned air is not directed to other than the occupant's body during the local heating, that is, the occupant's feeling of heating is not impaired during the local heating, and the occupant does not become extremely cold. Therefore, the comfort of the occupant can be prevented from being impaired, so that the occupant does not feel uncomfortable.

According to the second to fourth aspects of the present invention, a physical quantity closely related to a local cooling sensation or a local heating sensation, for example, one or more physical quantities of an outlet temperature, an outlet air volume, or a vehicle outside temperature is used. Correspondingly, the length of the occupant direction fixed time is determined. Alternatively, during the cooling operation, the lower the blow-out temperature, the larger the blow-off air amount, the lower the outside temperature of the vehicle compartment, and the heating operation, the higher the blow-out temperature, the larger the blow-out air amount, the higher the outside air temperature, By setting the length of the occupant direction fixed time short, when the occupant feels hot during local cooling or when the occupant feels cold during local heating, the length of the occupant direction fixed time Becomes longer. Also,
When the occupant feels cold during local cooling, or when the occupant feels hot during local heating, the length of time in the occupant direction is shortened, so the occupant's demand for cooling or heating sensation is ensured. Can be satisfied.

According to the fifth aspect of the present invention, the direction of the conditioned air blown from the outlet of the air conditioning duct into the one-side air-conditioning area is changed, and the direction of the conditioned air blown from the outlet into the other air-conditioning area. Can be made independently of each other. Accordingly, in the case of a vehicle air conditioner in which the temperature adjustment and the air volume adjustment of the one-side air-conditioning area and the other-side air-conditioning area can be performed independently of each other, when the air-conditioning air blowing direction is changed for each air-conditioning area. Can be shifted, so that local cooling or local heating corresponding to the cooling feeling or the heating feeling of each occupant in each air conditioning area can be performed.

According to the present invention, the state of the conditioned air blown out from the outlet of the air conditioning duct into the passenger compartment is locally concentrated on a part of the occupant's body. Then, after the occupant concentration time has elapsed, the state of air-conditioning
The first blowing state is changed to a second blowing state that is different from the first blowing state. Then, the length of the occupant concentration time is determined in accordance with a physical quantity closely related to the local cooling sensation or the local heating sensation, for example, at least one of the blowout temperature, the blown airflow, and the vehicle outside temperature. Alternatively, during the cooling operation, the lower the blow-out temperature, the larger the blow-out air volume, the lower the vehicle exterior temperature, and the higher the blow-out temperature during the heating operation,
By setting the length of the occupant concentration time shorter as the amount of blown air is higher and the temperature outside the vehicle is higher, when the occupant feels hot during local cooling, or when the occupant is cold during local heating, When feeling, the occupant concentration time is lengthened.
Also, when the occupant feels cold during local cooling, or when the occupant feels hot during local heating, the length of the occupant concentration time is shortened. Satisfaction can be surely satisfied.

According to the ninth and tenth aspects of the present invention, the state of the conditioned air blown from the air outlet of the air conditioning duct into the vehicle interior is determined by, for example, the blow direction, the blow position, the blow range, the blow air volume, or the blow temperature. Any one or more of the first
By changing until the blowing state change time elapses in a manner different from the blowing state, the occupant's discomfort during local cooling or local heating can be eliminated.

According to the eleventh aspect of the present invention, the state of the conditioned air blown out from the air outlet of the air conditioning duct into the one-side air-conditioning area is changed, for example, the blow direction, the blow position, the blow range, the blow air volume or the blow temperature. And the change of the blowout state of the conditioned air blown from the outlet into the other air conditioning area, for example, the change of the blowout direction, the blowout position, the blowout range, the blowout air amount or the blowout temperature can be performed independently of each other. Accordingly, in the case of a vehicle air conditioner in which the temperature adjustment and the air volume adjustment of the one-side air conditioning area and the other-side air conditioning area can be performed independently of each other, the timing of changing the air-conditioning air blowing state is different for each air conditioning area. Can be shifted, so that local cooling or local heating corresponding to the cooling feeling or the heating feeling of each occupant in each air conditioning area can be performed.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Configuration of First Embodiment] FIGS. 1 to 23 show a first embodiment of the present invention.
FIG. 2 is a diagram showing an overall configuration of a vehicle air conditioner, FIG. 2 is a diagram showing an instrument panel of the vehicle, and FIG. 3 is a diagram showing an air conditioner operation panel and Dr-side and Pa-side louver operation panels.

In the vehicle air conditioner of the present embodiment, each air conditioner (an actuator such as a servomotor) in an air conditioner unit 1 for air conditioning the interior of a vehicle such as an automobile equipped with an engine is connected to an air conditioner controller (hereinafter referred to as an air conditioner ECU). ), It is possible to perform the local cooling operation and the local heating operation in which the conditioned air blown out from the air outlet is locally concentrated on a part of the occupant's body. The air-conditioning unit 1 controls the temperature between the driver-side (driver's seat side: hereinafter referred to as Dr side) air-conditioning area and the passenger-side (passenger seat side: hereinafter referred to as Pa side) air conditioning area, performs auto louver control, manual louver control, and the like. It is an air conditioning unit that can be operated independently. The Dr-side air-conditioning area is a one-side air-conditioning area and a right front seat-side air-conditioning area in a vehicle cabin. The Pa-side air-conditioning area refers to the other-side air-conditioning area and the left front seat-side air-conditioning area in the cabin of the vehicle.

The air-conditioning unit 1 has an air-conditioning duct 2 disposed in front of the interior of the vehicle. On the upstream side of the air conditioning duct 2, an inside / outside air switching door 3 and a blower 4 are provided. The inside / outside air switching door 3 is a servo motor 5
This is a suction-port switching means for changing the opening degree of the inside-air suction port 6 that is driven by the inside and sucks the air (inside air) in the vehicle compartment, and the outside-air suction port 7 that suctions the air (outside air) outside the vehicle compartment. The blower 4 is a blower that is rotationally driven by a blower motor 9 controlled by a blower drive circuit 8 to generate an airflow toward the vehicle interior in the air conditioning duct 2.

At the center of the air conditioning duct 2, an air conditioning duct 2
An evaporator (air cooling means) 10 of a refrigeration cycle for cooling air passing through the inside is provided over the entire surface of the air conditioning duct 2. Further, a heater core (air heating means) 13 is provided downstream of the evaporator 10 using an engine cooling water for heating air passing through the first air passage 11 and the second air passage 12 as a heat source. Note that the first air passage 11 and the second air passage 12 are partitioned by a partition plate 14, and the heater core 13 is provided through the partition plate 14. A downstream side of the heater core 13 is provided with a D for controlling the temperature of the Dr-side air-conditioning area and the Pa-side air-conditioning area in the vehicle cabin independently of each other.
r-side and Pa-side air mix (A / M) doors 15 and 16 are provided.

Then, the Dr side, Pa side A / M door 15,
Numeral 16 adjusts the temperature of air blown toward the Dr side and the Pa side by adjusting the amount of air that is driven by the servomotors 17 and 18 and passes through the heater core 13 and the amount of air that bypasses the heater core 13. Here, the heater core 13, Dr-side A / M door 15, and Pa-side A / M door 16 constitute an outlet temperature variable means for adjusting the outlet temperature.

On the downstream side of the first air passage 11, a defroster (DEF) outlet 20 for blowing out conditioned air (mainly warm air) toward the inner surface of the front window glass (front window glass), and an occupant on the Dr side. Center side (FACE) outlet (center side outlet) 21 for blowing air-conditioned air (mainly cool air) toward the upper body (head and chest) of the passenger, upper body of Dr-side occupant or side window glass of Dr-side (FAC side) for blowing air-conditioned air (cold air or hot air) toward the inner surface of the (side window glass)
E) An outlet (side-side outlet) 22 and a Dr-side foot (FOOT) outlet 23 for blowing conditioned air (mainly warm air) toward the feet of the occupant on the Dr side are open. The DEF outlet 20 blows out conditioned air (mainly warm air) not only toward the inner surface of the front window glass in the Dr-side air-conditioning area but also toward the inner surface of the front window glass in the Pa-side air-conditioned area.

On the downstream side of the second air passage 12, P
Pa side center face (FAC) for blowing air-conditioned air (mainly cold air) toward the upper body (head and chest) of the a-side occupant
E) Air outlet (center side air outlet) 31, Pa side side face (FACE) blowing for blowing air-conditioned air (cold air or hot air) toward the upper body of the passenger on the Pa side or the inner surface of the side window glass on the Pa side. Exit (side outlet) 3
2, and a Pa side foot (FOOT) outlet 33 for blowing out conditioned air (mainly warm air) toward the feet of the occupant on the Pa side is open.

In the first and second air passages 11 and 12, the Dr-side and Pa-side outlet switching doors 2 for independently setting the Dr-side and Pa-side outlet modes in the passenger compartment are provided.
4 to 26, 35, and 36 are provided. And Dr
Side, Pa side outlet switching doors 24-26, 35, 36,
Driven by the servo motors 28, 29 and 39,
Mode switching door for switching between the outlet mode on the side and the side on the Pa side. Here, the face mode (FACE) mode, bi-level (B / L) mode, foot (FOOT) mode, foot differential (F / D) mode, defroster (DEF) mode, etc. There is.

Then, the Dr. Center FACE outlet 2
1. Dr side FACE outlet 22, Pa side center F
ACE outlet 31 and Pa side FACE outlet 3
2, a louver device is attached to the instrument panel 40. In addition, Dr side FAC
The E outlet 22 and the Pa side FACE outlet 32 may be attached to the front door or the inner panel of the side body of the vehicle.

Next, the FACE outlets 21, 22, 3
The louver devices installed in the first and second embodiments will be briefly described with reference to FIGS. Here, FIG. 4 shows each FA on the Dr side.
It is a figure showing the whole louver device composition installed in CE outlets 21 and 22, respectively. Each FAC on the Pa side
The louver devices installed at the E outlets 31 and 32 are not shown because they have the same configuration as the louver devices installed at the FACE outlets 21 and 22 on the Dr side.

Each louver device is provided in the Dr side, Pa side center grill 41, Dr side, and Pa side side grill 42, respectively. The air passages in the Dr side, the Pa side center, and the side grills 41 and 42 are provided with the above-mentioned D side.
r side center FACE outlet 21, Dr side side FACE
Outlet 22, Pa side center FACE outlet 31 and P
It is used as the a side FACE outlet 32. And the Dr side, the Pa side center, and the side grill 4
A louver left-right swing mechanism (see FIG. 5) is provided in the insides 1 and 42.
And a louver up / down swing mechanism (see FIG. 6).

The louver left / right swing mechanism is provided on the Dr side, Pa
A louver fin (hereinafter referred to as a center louver or a side louver) 43 forming variable louvers arranged in a plurality of rows in the side center and the side grills 41 and 42 in the left-right direction (the width direction of the vehicle) with respect to the traveling direction of the vehicle, and a plurality of louvers A link lever 44 for swinging (swinging) the center louver 43 in the right and left directions around a fulcrum in a predetermined swing range, and a louver for horizontally reciprocating the link lever 44 via an arm plate 45. And a louver motor (for example, a DC servomotor) 43a as a driving means.

The plurality of center louvers 43 and the plurality of side louvers 43 correspond to the blowing direction changing means and the blowing state changing means of the present invention. By stopping the louver motor 43a at a predetermined rotation angle, the Dr. It is directed to the vicinity of the occupant's neck or shoulder in the side air conditioning area.
Thereby, the horizontal direction of the conditioned air blown out (wind direction) from the Dr side center FACE outlet 21, the Dr side FACE outlet 22, the Pa side FACE outlet 31, and the Pa side FACE outlet 32 is shown. The position is fixed near the neck or shoulder of the occupant in the Dr-side and Pa-side air conditioning areas.

Here, between the output shaft of the louver motor 43a and the link lever 44 or the arm plate 45,
In order to prevent a large load from being applied to the louver motor 43a when the center and the side louvers 43 are manually operated by an occupant, slippage of a clutch or the like that interrupts the operating force transmitted from the link lever 44 or the arm plate 45 to the output shaft of the louver motor 43a. Means are provided.

The louver up-down swing mechanism is provided on the Dr side, Pa
Louver fins (hereinafter referred to as center louvers or side louvers) 46 forming variable louvers arranged in a plurality of rows in the side center and the side grills 41 and 42 in the vertical direction (vehicle height direction) with respect to the traveling direction of the vehicle; A link lever 47 for swinging (swinging) the center of the sheet and the side louver 46 in the vertical direction around a fulcrum in a predetermined swing range, and reciprocating the link lever 47 in the vertical direction via an arm plate 48. And a louver motor (for example, a DC servo motor) 46a as a louver driving means.

The plurality of center louvers 46 and the plurality of side louvers 46 correspond to the blowing direction changing means and the blowing state changing means of the present invention. By stopping the louver motor 46a at a predetermined rotation angle, the Dr. It is directed to the vicinity of the occupant's neck or shoulder in the side air conditioning area.
Thereby, the height direction of the blowing direction (wind direction) of the conditioned air blown out from the Dr-side center FACE outlet 21, the Dr-side FACE outlet 22, the Pa-side FACE outlet 31, and the Pa-side FACE outlet 32. Is fixed near the neck or shoulder of the occupant in the Dr-side and Pa-side air conditioning areas.

Here, between the output shaft of the louver motor 46a and the link lever 47 or the arm plate 48,
In order to prevent a large load from being applied to the louver motor 46a when the center and the side louvers 46 are manually operated by an occupant, slipping of a clutch or the like for interrupting the operating force transmitted from the link lever 47 or the arm plate 48 to the output shaft of the louver motor 46a. Means are provided.

The louver motors 43a and 46a correspond to actuators. Further, the Dr-side louver left-right swing mechanism and the Dr-side louver vertical swing mechanism correspond to one-side blowing direction variable means and one-side blowing state variable means of the present invention, and the Pa-side louver left / right swinging mechanism. Mechanism and Pa
The louver up / down swing mechanism on the side corresponds to the other side blowing direction variable means and the other side blowing state variable means of the present invention.

The air-conditioning ECU 50 corresponds to the air-conditioning control device and the concentration time determining means of the present invention.
A known microcomputer including a U, a ROM, a RAM, and the like is provided. As shown in FIGS. 1 and 3, the air conditioner ECU 50 includes an air conditioner operation panel 51 and a Dr-side louver operation (SWINGSW) panel 5.
2 and Pa side louver operation (SWINGSW) panel 5
3, switch signals are input.

The air conditioner operation panel 51 is installed integrally with the instrument panel 40 at the center in the vehicle width direction on the front side of the cabin. The air conditioner operation panel 51 includes an air conditioner (A / C) switch 54, an inlet mode changeover switch 55, a front defroster switch 56, a rear defroster switch 57, a dual switch 58, an outlet mode changeover switch 59, a blower air volume changeover switch 60,
An auto switch 61, an off switch 62, a liquid crystal display 63, a Dr-side temperature setting switch 64, a Pa-side temperature setting switch 65, and the like are provided.

The dual switch 58 among the above is
This is a left / right independent control command unit for issuing a left / right independent temperature control for independently controlling the temperature in the r-side air conditioning area and the temperature in the Pa-side air conditioning area. Further, the outlet mode changeover switch 59 is operated in the FACE mode, the B / L
An outlet switching means for fixing the outlet mode to any one of the mode, the FOOT mode, and the F / D mode.

The blower air volume changeover switch 60 is connected to the blower 4
Means for switching the blower air volume stepwise. Each time the blower air volume switch 60 is pressed,
The order is switched in the order of OFF, Lo, M1, M2, M3 and Hi. When the blower air volume changeover switch 60 is pressed and OFF is displayed on the liquid crystal display device 63, the power supply to the blower motor 9 is stopped. Also, Lo, M1, M2, M3
Are displayed, the blower control voltage VA applied to the blower motor 9 is reduced to the minimum value (minimum air volume), the first intermediate value (first intermediate air volume), the second intermediate value (second intermediate air volume), and the third
The intermediate value (third intermediate air volume) and the maximum value (maximum air volume) are fixed.

The Dr-side temperature setting switch 64 is
This is a Dr-side temperature setting means for setting the temperature in the Dr-side air conditioning area to a desired temperature. The Pa-side temperature setting switch 65 is a Pa-side temperature setting unit for setting the temperature in the Pa-side air conditioning area to a desired temperature. Dr side temperature setting switch 64 and Pa side temperature setting switch 65
Can set a Dr-side set temperature and a Pa-side set temperature between 20 ° C. and 30 ° C., for example, every 0.5 ° C.

The Dr-side louver operation panel 52 is installed at the center of the instrument panel 40 to the right of the air-conditioner operation panel 51, and has a MATCH switch 66 for swinging both the Dr-side center and the side grills 41, 42. CENTER switch 67 for allowing the Dr side center grill 41 to swing, Dr side side grill 42
, And a swing mode changeover switch 69 for enabling swinging.

Of the above, MATCH switch 66, CE
The NTER switch 67 and the SIDE switch 68 are push switches having a normal position (OFF) and a pressed position (ON). Swing mode switch 69
STOP (swing stop), AUTO (auto swing), Rr, U-DSWING (vertical swing),
It is a rotary switch having each switching position of R-LSWING (horizontal direction swing).

The swing mode switch 69
Is set to AUTO, the Dr-side center grill 41
Alternatively, it outputs a command to perform automatic louver control on the center of the Dr side grill 42 and the side louvers 43 and 46. Then, the swing mode switch 69
When it is set to r, the center and side louvers 43 and 46 are swung so that the air volume distribution is larger in the rear seat side air conditioning area than in the front seat side air conditioning area of the vehicle. For example, the center of the Dr side center grill 41 and the side louvers 4
The swing speed of 3, 46 is high in the zone where the conditioned air blows out so as to hit the occupant in the Dr-side air conditioning area.
Slow down in the zone where the conditioned air blows out so as not to hit the occupants in the side air conditioning area.

The swing mode changeover switch 69
When U-DSWING is set, the center of the Dr-side center grill 41 or the center of the Dr-side side grill 42 and the side louvers 46 are moved up and down (UD) in a predetermined swing range.
Direction is output to perform manual louver control for swinging in the direction (i.e., direction). Further, when the swing mode changeover switch 69 is set to R-LSWING, the center of the Dr-side center grill 41 or the center of the Dr-side side grill 42 and the side louvers 43 are swung in the left-right direction (RL direction) within a predetermined swing range. A command is issued to perform manual louver control to cause the louver control.

The Pa-side louver operation panel 53 is, like the Dr-side louver operation panel 52, a MAT capable of swinging both the Pa-side center and the side grills 41 and 42.
It comprises a CH switch 70, a CENTER switch 71 for allowing the Pa side center grill 41 to swing, a SIDE switch 72 for allowing the Pa side grille 42 to swing, and a swing mode changeover switch 73.

Of the above, MATCH switch 70, CE
The NTER switch 71 and the SIDE switch 72 are push switches having a normal position (OFF) and a pressed position (ON). The swing mode switch 73 is
STOP (swing stop), AUTO (auto swing), Rr, U-DSWING (vertical swing),
It is a rotary switch having each switching position of R-LSWING (horizontal direction swing).

The swing mode switch 73
Is the same as the swing mode changeover switch 69.
When set to UTO, the center of the Pa side center grille 41 or the Pa side side grille 42, the side louvers 43,
An instruction is issued to perform an automatic louver control at 46.
When the swing mode changeover switch 73 is set to Rr, the center and the side louvers 43 and 46 swing so that the air distribution is larger in the rear seat-side air-conditioning area than in the front seat-side air-conditioning area of the vehicle. . For example, the center of the Pa side center grill 41, the side louvers 43,
The swing speed of 46 is high in the zone where the conditioned air blows out so as to hit the occupant in the Pa-side air-conditioning area, and is reduced in the zone where the conditioned air blows out so as not to hit the occupant in the Pa-side air-conditioning area.

The swing mode switch 73
When U-DSWING is set, the center of the Pa-side center grill 41 or the center of the Pa-side side grill 42 and the side louvers 46 are moved up and down (UD) in a predetermined swing range.
Direction is output to perform manual louver control for swinging in the direction (i.e., direction). Further, when the swing mode changeover switch 73 is set to R-LSWING, the center of the Pa-side center grill 41 or the center of the Pa-side side grill 42 and the side louvers 43 are swung left and right (RL direction) within a predetermined swing range. A command is issued to perform manual louver control to cause the louver control.

Here, as shown in FIG.
Between the a-side center grille 41, the Dr-side, Pa-side center F
A door open / close switch 74 for manually operating a shutter (not shown) for opening and closing the ACE outlets 21 and 31 is provided. The Dr side and Pa side center grille 41 and the Dr side and Pa side side grille 42 have respective centers,
Knobs 75 and 76 are provided for moving the louver directions of the side louvers 43 and 46 in the left-right direction and the vertical direction by manual operation.

Further, the air conditioner ECU 50 converts the sensor signal from each sensor into an A / D signal by an input circuit (not shown).
After being converted, it is configured to be input to a microcomputer. That is, the air conditioner ECU 50 has an inside air temperature sensor 91 as an inside air temperature detecting means for detecting the air temperature in the vehicle compartment (hereinafter referred to as the inside air temperature), and the outside air temperature for detecting the air temperature outside the vehicle compartment (hereinafter the outside air temperature). An outside air temperature sensor 92 as a detecting means, and Dr
Sensor 93 as a Dr-side, Pa-side insolation amount detecting means for detecting the amount of insolation irradiated into the air-conditioning area on the Pa-side, Pa-side.
Is connected.

The Dr-side and Pa-side temperature sensors 94a and 94b for detecting the temperature of the conditioned air blown into the Dr-side and Pa-side air-conditioning areas, and the cooling degree detecting means for detecting the actual degree of air cooling by the evaporator 10. Post-evaporation temperature sensor 95 as a cooling water temperature sensor 96 as a cooling water temperature detecting means for detecting the temperature of the cooling water of the engine of the vehicle;
Potentiometers 97 and 98 for detecting the current positions 3 and 46 (the blowing direction of the conditioned air) are connected.

Here, two inside air temperature sensors 91 may be used and installed in the Dr side air conditioning area and the Pa side air conditioning area, respectively. The Dr-side and Pa-side outlet temperature sensors 94a and 94b are respectively installed in side face ducts that connect the Dr-side and Pa-side side grills 42 to the air conditioning duct 2. Post-evaporation temperature sensor 95
Is a post-evaporation temperature detecting means for detecting the air temperature immediately after passing through the evaporator 10 (hereinafter referred to as post-evaporation temperature).

Then, the solar radiation sensor 93 detects the Dr side, Pa
Solar radiation detecting means (for example, phototransistor, photodiode, solar cell) for detecting the amount of solar radiation (solar radiation intensity) radiated into the side air-conditioning area, and solar radiation for detecting the irradiation direction of sunlight (solar radiation direction, solar radiation azimuth) Direction detecting means (for example, a temperature-sensitive element such as a photodiode, a solar cell, and a thermistor), and solar irradiance detecting means (for example, a photodiode, a solar cell, and a thermistor) for detecting the altitude of sunlight (solar elevation angle, solar irradiance, solar elevation angle) Etc.).

As shown in FIG. 5, a plurality of (four in this example) potentiometers 97 are provided in the vicinity of the louver left / right swing mechanism, respectively, and reciprocate in the horizontal direction integrally with the link lever 44. A movable contact 97a and a resistance element 9 for changing a voltage dividing ratio by moving the movable contact 97a
7b and the like. As shown in FIG. 6, a plurality of (four in this example) potentiometers 98 are provided in the vicinity of the louver up / down swing mechanism, respectively, and are movable contacts 98a which reciprocate up and down integrally with the link lever 47. , And a resistance element 98b that changes the voltage division ratio by moving the movable contact 98a.

Here, the air conditioner ECU 50 of the present embodiment
In the local cooling operation and the local heating operation, each FA
A first blowing state in which the blowing state of the conditioned air blown out from the CE outlets 21, 22, 31, 32 is locally concentrated near the occupant's neck (corresponding to a part of the body) in each air conditioning area; The blow-out state of the conditioned air blown out from each of the FACE outlets 21, 22, 31, and 32 is locally concentrated near the occupant's shoulder in each air-conditioned area (corresponding to a blow-out state different from the first blow-out state). The louver control is performed so as to alternately perform the second blowing state at predetermined time intervals.

Specifically, during the local cooling operation and the local heating operation, each of the FACE outlets 21, 22, 31, 32 is operated.
The first blowing direction that fixes the blowing direction of the conditioned air blown from the vicinity of the occupant's neck (corresponding to a part of the body) in each air-conditioning area and the blowing direction of the conditioned air are defined as the occupant in each air-conditioning area. The louver control is performed such that the second blowing direction fixed near the shoulder (corresponding to the other part of the body) is alternately performed at predetermined time intervals (fixed time in the occupant's neck direction, fixed time in the occupant's shoulder direction).

[Control Method of First Embodiment] Next, a control method by the air conditioner ECU 50 of the present embodiment will be described with reference to FIGS. Here, FIG. 7 is a flowchart showing an example of a control program of the air conditioner ECU 50.

First, when the ignition switch is turned on and DC power is supplied to the air conditioner ECU 50, execution of the control program (routine in FIG. 7) is started. At this time, first, the storage contents and the like of the data processing memory (RAM) are initialized (step S1).

Next, various data are read into the data processing memory. That is, a switch signal from each switch and a sensor signal from each sensor are input (Step S).
2). Specifically, the Dr-side and Pa-side temperature setting switches 6
The Dr-side and Pa-side set temperatures set at 4, 65, and D
The operation states of the r-side and Pa-side swing mode changeover switches 69 and 73 are input and stored in the data processing memory. Also, the Dr-side and Pa-side blowing temperature sensors 94a and 94b detected by the Dr-side and Pa-side blowing temperature sensors 94b and the solar radiation amount, the solar radiation direction and the solar radiation elevation angle detected by the solar radiation sensor 93 are input to the data processing memory. To memorize. Further, the current position in the horizontal direction (blowing direction, wind direction) detected by the potentiometer 97 and the current position in the vertical direction (blowing direction, wind direction) detected by the potentiometer 98 are input and stored in the data processing memory.

Next, based on the above stored data and the following equations (1) and (2), the target blow temperature TAO (Dr) on the Dr side and the target blow temperature TAO on the Pa side are calculated.
(Pa) is calculated (target outlet temperature determining means: step S3).

## EQU1 ## TAO (Dr) = Kset.Tset (Dr)
−KR ・ TR−KAM ・ TAM−KS ・ TS + Kd (D
r) {CD (Dr) + Ka (Dr) (10-TAM)}
{Tset (Dr) -Tset (Pa)} + C

## EQU2 ## TAO (Pa) = Kset · Tset (Pa)
−KR ・ TR−KAM ・ TAM−KS ・ TS + Kd (P
a) {CD (Pa) + Ka (Pa) (10-TAM)}
{Tset (Pa) -Tset (Dr)} + C

However, Tset (Dr) and Tset
(Pa) is the set temperature in the Dr-side air conditioning area,
TS represents the set temperature in the Pa-side air-conditioning area, and TS represents the amount of solar radiation in the Dr-side and Pa-side air-conditioning areas, respectively. Also,
TR and TAM represent the inside air temperature and the outside air temperature, respectively.
Kset, KR, KAM, KS, Kd (Dr) and K
d (Pa) represents a temperature setting gain, an inside air temperature gain, an outside air temperature gain, a solar radiation gain, and a temperature difference correction gain of the first and second air conditioning areas, respectively.

Incidentally, Ka (Dr) and Ka (Pa) represent gains for correcting the degree of influence of the outside air temperature TAM on the respective air-conditioning temperatures of the Dr-side air-conditioning area and the Pa-side air-conditioning area, respectively, and CD (Dr), CD (Pa) is a constant corresponding to the degree of influence, and C is a correction constant. Where Ka
(Dr), Ka (Pa), CD (Dr), CD (Pa)
Varies depending on various parameters such as the shape and size of the vehicle, the direction of the blown air from the air conditioning unit 1, and the like.

Next, the blower control voltage VA (Dr) applied to the blower motor 9 based on the target blow temperature TAO (Dr) on the Dr side and the target blow temperature TAO (Pa) on the Pa side obtained in step S3, VA (Pa) is calculated (step S4). Specifically, the blower control voltage VA is set to the target blowing temperature TAO (Dr), TAO (P
a) blower control voltages VA (Dr) respectively adapted to
VA (Pa) is obtained based on the characteristic diagram of FIG.
The blower control voltages VA (Dr) and VA (Pa) are obtained by averaging.

Next, the target outlet temperature TAO (Dr) on the Dr side and the target outlet temperature TAO (Pa) on the Pa side obtained in step S3, and the outlet for the target outlet temperature shown in the characteristic diagram of FIG. Each outlet mode of the Dr-side air-conditioning area and the Pa-side air-conditioning area is determined based on the mode characteristics (step S5). Specifically, in determining the outlet mode, the target outlet temperature TAO (Dr), T
When AO (Pa) goes from low to high temperature, FAC
The mode is determined to be the E mode, the B / L mode, and the FOOT mode. By operating the outlet mode changeover switch 59 provided on the air conditioner operation panel 51, the air outlet mode is fixed to any one of the FACE mode, B / L mode, FOOT mode and F / D mode. .

The FACE mode is an outlet mode in which conditioned air is blown toward the upper body (head and chest) of the occupant in the Dr-side and Pa-side air-conditioning areas. Also, B /
The L mode is an outlet mode in which conditioned air is blown toward the upper body (head and chest) and feet of the occupant in the Dr-side and Pa-side air-conditioning areas. The FOOT mode is an outlet mode in which the conditioned air is blown toward the feet of the occupants in the Dr-side and Pa-side air-conditioning areas. Further, the F / D mode is an outlet mode in which conditioned air is blown toward the feet of the occupant and the inner surface of the windshield of the vehicle.

In this embodiment, the front defroster switch 56 provided on the air conditioner operation panel 51 is used.
Is operated, the DEF mode for blowing the conditioned air toward the inner surface of the front window glass of the vehicle is set. Further, even if the outlet mode is the FOOT mode, the F / D mode or the DEF mode, the Dr side FACE outlet 22 and the Pa side FACE outlet 32 are always open.

Next, the A / M opening degree SW (Dr) (%) of the A / M door 15 on the Dr side and the A / M
Calculate M opening SW (Pa) (%) (Step S)
6). The calculation of the A / M opening degree SW (Dr) and the A / M opening degree SW (Pa) is based on the target air temperature TAO (Dr) on the Dr side and the target air temperature TAO on the Pa side.
(Pa), the post-evaporation temperature (TE) detected by the post-evaporation temperature sensor 95, the cooling water temperature (TW) detected by the cooling water temperature sensor 96, and the following equations (3) and (4). It is performed based on.

## EQU3 ## SW (Dr) = {TAO (Dr) -TE} × 1
00 / (TW-TE)

## EQU4 ## SW (Pa) = {TAO (Pa) -TE} × 1
00 / (TW-TE)

Next, the routines shown in FIGS. 10 to 14 are started to perform louver control (auto louver control or manual louver control). That is, in the auto louver control, the blowout state (blowing direction, blowing range) of the conditioned air blown from the Dr side center and side FACE outlets 21 and 22 into the Dr side air conditioning area is determined, and the Pa side center and side FACE are controlled. The blowout state (blowing direction, blowing range) of the conditioned air blown out from the outlets 31 and 32 toward the Pa-side air-conditioning area is determined. Specifically, Dr side, Pa
The louver direction and swing range (swing angle) of the side center, the center of the louver device of the side grilles 41 and 42, and the side louvers 43 and 46 are determined (blowing state determining means: step S7).

Next, a control signal is output to the blower drive circuit 8 so as to have the blower control voltage VA determined in step S4 (step S8). Next, the A / M opening degree SW (Dr) and the A / M opening degree SW determined in step S6
A control signal is output to the servo motors 17 and 18 so as to be (Pa) (Step S9). Next, the servo motor 2 is set to the outlet mode determined in step S5.
Control signals are output to 8, 29, and 39 (step S1).
0). Next, the louver motors 43a and 46a are controlled so that the blowing direction and the swing range are determined in step S7.
A control signal is output (step S11).

Next, louver control by the air conditioner ECU 50 will be described with reference to FIGS. here,
10 to 14 are flowcharts showing louver control by the air conditioner ECU 50.

First, when the routine of FIG.
It is determined whether the swing mode changeover switches 69 and 73 provided on the r-side and Pa-side louver operation panels 52 and 53 are set to AUTO (step S12). If the determination result is NO, manual louver control is performed according to the set positions of the swing mode changeover switches 69 and 73 (step S13). Thereafter, the process exits the routine of FIG.

If the result of the determination in step S12 is YES
In this case, the following auto louver control is performed. First, it is determined whether the outlet mode is the FACE mode or the B / L mode (step S14). If the result of this determination is NO, it is determined whether the outlet mode is the FOOT mode or the F / D mode (step S1).
5). If the determination result is NO, the louver direction is determined so that the side louvers 43 and 46 on the Dr side and Pa side face the nearby side window glass (step S1).
6). Thereafter, the process exits the routine of FIG.

If the result of the determination in step S15 is YES
In the case of, the cooling water temperature (TW) detected by the cooling water temperature sensor 96 is a predetermined cooling water temperature (for example, 40 ° C.) TWS
(Step S1).
7). If the result of this determination is NO, step S16
To the control process of. If the determination result of step S17 is YES, it is determined whether or not the following equations (5) and (6) are satisfied (step S18). If the result of this determination is YES, that is, if it is during the normal heating operation, the flow proceeds to the control processing of step S16.

-5 (degrees) <{TR-Tset (Dr)}

-6 (degrees) <{TR-Tset (Pa)}

Here, TR represents the inside air temperature detected by the inside air temperature sensor 91, and Tset (Dr), Tset (P
a) represents the Dr-side and Pa-side set temperatures set by the Dr-side and Pa-side temperature setting switches 64 and 65.

If the determination result in step S18 is NO, that is, at the time of cooling down (local cooling operation) or at the time of warm-up (local heating operation), FIG.
Is started, and the Dr-side and Pa-side blowing temperatures detected by the Dr-side and Pa-side blowing temperature sensors 94a and 94b, and the occupant neck direction fixed time characteristics with respect to the blowing temperature shown in the characteristic diagram of FIG. Based on the above, the fixed time in the occupant neck direction (corresponding to the fixed time in the occupant direction and the occupant concentration time of the present invention) of the occupants on the Dr and Pa sides is determined (calculated) (concentration time determining means: step S19).

Here, in the local cooling operation, in the determination of the occupant neck fixed time, the occupant neck fixed time is determined to be longer as the above Dr-side and Pa-side blowout temperatures are higher. In the local heating operation, the occupant neck fixing time is determined such that the lower the Dr-side and Pa-side blowing temperatures are, the longer the occupant neck fixing time is. It should be noted that the length of the occupant neck fixed time may be corrected based on the occupant neck fixed time characteristic with respect to the blower control voltage shown in the characteristic diagram of FIG.

Next, the above-mentioned fixed time in the occupant neck direction and FIG.
Based on the occupant neck fixed time and the occupant shoulder fixed time characteristic shown in the characteristic diagram of FIG. 7, the occupant shoulder fixed time of the Dr-side and Pa-side occupants (corresponding to the blowing state change time of the present invention) is determined. (Calculation) (step S20). Specifically, in the determination of the occupant shoulder direction fixing time, the occupant shoulder direction fixing time is determined to be longer as the occupant neck direction fixing time becomes longer.

Next, the side louvers 4 on the Dr and Pa sides
3 and 46 are changed until the occupant neck fixed time elapses.
It is determined whether or not the vehicle has been directed to the vicinity of the occupant's neck in the air conditioning area on the side of Pa and Pa (Step S21). If the determination result is NO, the side louvers 43 and 46 on the Dr and Pa sides are used.
The louver direction is determined so as to face the vicinity of the occupant's neck in the Dr-side and Pa-side air-conditioning areas (step S22). Thereafter, the process exits the routine of FIG.

If the result of the determination in step S21 is YES
In the case of, the side louvers 43 and 46 on the Dr side and the Pa side
To the Dr side, Pa until the occupant shoulder fixed time elapses.
It is determined whether or not the vehicle is directed to the vicinity of the occupant's shoulder in the side air conditioning area (step S23). If the determination result is NO, the side louvers 43 and 46 on the Dr side and Pa side are
The louver direction is determined so as to face the vicinity of the occupant's shoulder in the side and Pa side air conditioning areas (step S24). Then,
The process exits the routine of FIG.

If the result of the determination in step S23 is YES
In the case of, the side louvers 43 and 46 on the Dr side and the Pa side
The louver direction is determined so that is directed to the vicinity of the occupant's neck in the Dr-side and Pa-side air-conditioning areas (step S25). Thereafter, the process exits the routine of FIG.

In the routine of FIG. 10, if the decision result in the step S14 is YES, it is decided whether or not the following equations (7) and (8) are satisfied (step S14).
26).

-7 (degrees) <{TR-Tset (Dr)} <
+10 (degree)

-8 (degrees) <{TR-Tset (Pa)} <
+10 (degree)

Here, TR indicates the inside air temperature detected by the inside air temperature sensor 91, and Tset (Dr), Tset (P
a) represents the Dr-side and Pa-side set temperatures set by the Dr-side and Pa-side temperature setting switches 64 and 65.

If the result of the determination in step S26 is YES, that is, if the vehicle is in a steady operation, FIG.
2 is started, and based on the blower control voltages VA (Dr) and VA (Pa) applied to the blower motor 9,
Center louvers 43 on the Dr side and Pa side, and
The swing height of the side louver 43 on the a side is determined (step S27). Specifically, as shown in FIG.
When the blower control voltage is 4 (V) to 5 (V), the swing height is set to (A), and the blower control voltage is 6 (V) to 8 (V).
In the case of (V), the swing height is set to (B), and when the blower control voltage is 9 (V) or more, the swing height is set to (C).

Next, based on the blower control voltages VA (Dr) and VA (Pa) applied to the blower motor 9,
The swing positions of the center louver 46 on the side and the Pa side and the side louvers 46 on the Dr side and the Pa side are determined (step S28). Specifically, as shown in FIG. 19, when the blower control voltage is 4 (V) to 5 (V), the swing position is set to (A), and the blower control voltage is 6 (V) to 8 (V).
In the case of (V), the swing position is set to (B), and when the blower control voltage is 9 (V) or more, the swing position is set to (C).

Next, it is determined whether or not a cooling operation is being performed (step S29). If the determination result is YES, that is, during the cooling operation, the Dr side and the Pa side based on the solar radiation direction and the solar radiation intensity in the Dr side and Pa side air-conditioning areas and the characteristic diagram of FIG. Center louvers 43, 4
6, and determine (calculate) the swing range (swing angle) of the side louvers 43 and 46 on the Dr and Pa sides (step S).
30). FIG. 20A shows the driver's seat side during the cooling operation,
FIG. 20B is a characteristic diagram illustrating a swing range characteristic of the louver with respect to the solar radiation direction and the solar radiation intensity on the passenger seat side, and FIG. 20B is a characteristic diagram illustrating a correction angle characteristic with respect to the inside air temperature during the cooling operation.

Next, the center determined in step S30,
The inside air temperature of the swing range of the side louvers 43 and 46 is corrected. Specifically, the swing range θ (D
r), θ (Pa), the characteristic diagram of FIG. 20 (b), and the following equations 9 and 10, the swing ranges θ (Dr), θ (Pa ) Is determined (calculated) (step S31). After that, the control process of step S34 is performed.

## EQU9 ## θ (Dr) = θ (Dr) + α (degree)

## EQU10 ## θ (Pa) = θ (Pa) + α (degree)

On the other hand, if the decision result in the step S29 is NO, that is, in the case of the heating operation, the Dr side, P
FIG. 21 shows the solar radiation direction and the solar radiation intensity in the a-side air conditioning area.
Based on the characteristic diagram of (a), the swing range (swing angle) of the center louvers 43 and 46 on the Dr side and Pa side and the side louvers 43 and 46 on the Dr side and Pa side is determined (calculated) (step). S32). FIG. 21A is a characteristic diagram showing the louver swing range characteristics with respect to the insolation direction and the insolation intensity on the driver's seat side and the passenger's seat side during the heating operation, and FIG.
FIG. 4 is a characteristic diagram showing a correction angle characteristic with respect to an inside air temperature during a heating operation.

Next, the center determined in step S30,
The inside air temperature of the swing range of the side louvers 43 and 46 is corrected. Specifically, the swing range θ (D
r), θ (Pa), the characteristic diagram of FIG. 21 (b), and the above equations (9) and (10), the swing ranges θ (Dr), θ (Pa ) Is determined (calculated) (step S33).

Next, as the swing range (swing width) becomes smaller,
The swing speed is calculated so that the swing speed becomes slow. That is, the swing speed is determined (calculated) so that the wider the swing range (swing width), the faster the swing speed (step S34). Thereafter, the process exits the routine of FIG.

When the result of the determination in step S26 is NO, that is, at the time of cool-down (local cooling operation) or warm-up (local heating operation), FIG.
Is started, and the Dr-side and Pa-side blowing temperatures detected by the Dr-side and Pa-side blowing temperature sensors 94a and 94b, and the occupant neck direction fixed time characteristics with respect to the blowing temperature shown in the characteristic diagram of FIG. Based on the above, the fixed time in the occupant neck direction of the occupants on the Dr side and the Pa side (corresponding to the fixed time in the occupant direction and the occupant concentration time of the present invention) is determined (calculated) (concentration time determining means: step S35). It should be noted that the length of the occupant neck fixed time may be corrected based on the occupant neck fixed time characteristic with respect to the blower control voltage shown in the characteristic diagram of FIG.

Next, the above-mentioned fixed time in the occupant neck direction and FIG.
Based on the occupant neck fixed time and the occupant shoulder fixed time characteristic shown in the characteristic diagram of FIG. 7, the occupant shoulder fixed time of the Dr-side and Pa-side occupants (corresponding to the blowing state change time of the present invention) is determined. (Calculation) (step S36). next,
It is determined whether the center louvers 43 and 46 on the Dr side and Pa side are directed toward the vicinity of the occupant's neck in the Dr side and Pa side air conditioning area until the occupant neck fixed time elapses (step S37). If the result of this determination is YES, the Dr side
It is determined whether the center louvers 43 and 46 on the Pa side are directed to the vicinity of the shoulders of the occupants in the Dr-side and Pa-side air-conditioning areas until the occupant shoulder direction fixing time elapses (step S3).
8).

If the decision result in the step S38 is NO, the center louvers 43 and 46 on the Dr side and Pa side are
The louver direction is determined so as to face the vicinity of the shoulder of the occupant in the Dr-side and Pa-side air-conditioning areas (step S39). Thereafter, the process exits the routine of FIG. Step S38
If the determination result is YES, the louver direction is determined so that the center louvers 43 and 46 on the Dr side and Pa side are directed to the vicinity of the neck of the occupant in the Dr side and Pa side air conditioning areas (step S40). Thereafter, the process exits the routine of FIG.

If the decision result in the step S37 is NO, the routine of FIG. 14 is started, and the Dr side, Pa
The louver direction is determined so that the center louvers 43 and 46 on the side are directed toward the vicinity of the occupant's neck in the Dr-side and Pa-side air-conditioning areas (step S41). Next, it is determined whether or not the Dr-side and Pa-side side louvers 43, 46 have been directed to the vicinity of the occupant's neck in the Dr-side, Pa-side air-conditioning area until the occupant neck direction fixing time has elapsed (step S42). . If this determination result is NO, the side louvers 4 on the Dr side and Pa side
The louver direction is determined such that the radiators 3 and 46 are directed to the vicinity of the occupant's neck in the Dr-side and Pa-side air-conditioning areas (step S4
3). Thereafter, the process exits the routine of FIG.

If the decision result in the step S42 is YES
In the case of, the center louvers 43 and 46 on the Dr and Pa sides
It is determined whether or not a predetermined time (for example, 5 seconds) has passed since the change from the direction toward the shoulder to the direction toward the neck (step S44). If this determination is NO, the flow proceeds to the control processing in step S43.

If the decision result in the step S44 is YES
In the case of, the side louvers 43 and 46 on the Dr side and the Pa side
To the Dr side, Pa until the occupant shoulder fixed time elapses.
It is determined whether or not the vehicle is directed to the vicinity of the occupant's shoulder in the side air conditioning area (step S45).

If the decision result in the step S45 is NO, the side louvers 43 and 46 on the Dr side and the Pa side are
The louver direction is determined so as to be directed to the vicinity of the shoulder of the occupant in the Dr-side and Pa-side air conditioning areas (step S46). Thereafter, the process exits the routine of FIG. Step S45
If the determination result is YES, the louver direction is determined so that the side louvers 43 and 46 on the Dr side and Pa side are directed to the vicinity of the neck of the occupant in the Dr side and Pa side air conditioning areas (step S47). Thereafter, the process exits the routine of FIG.

[Operation of First Embodiment] Next, the operation of the vehicle air conditioner of this embodiment will be described with reference to FIGS. Here, FIGS. 22A and 22B are diagrams showing a state in which the conditioned air blown out from the center and the side grills 41 and 42 is concentrated (fixed) near the neck of each occupant, and FIG.
FIG. 23A is a diagram showing a state in which the conditioned air blown out from the center and the side grills 41 and 42 is concentrated (fixed) near the shoulder of each occupant, and FIG.
FIG. 5 is a diagram showing a state in which one of the conditioned air blown out of the vehicle is concentrated (fixed) near the neck of each occupant and the other is concentrated (fixed) near the shoulder of each occupant.

B) Local cooling operation When the outside air temperature is higher than the set temperature on the Dr side and Pa side, for example, in summer, the outlet mode is generally set to FA.
The mode is set to the CE mode or the B / L mode. And
At the time of cooling down after parking under the hot weather, when the blower 4 blows at the maximum air flow (the blower control voltage applied to the blower motor 9 is the maximum value), or when the target blow-out temperature obtained by calculation is the maximum cooling operation mode (for example, MAX. COOL), or when the solar radiation is shining into the Dr-side and Pa-side air-conditioning areas, the louver device in the Dr-side and Pa-side center grille 41 and the louver device in the Dr-side and Pa-side side grille 42. By stopping the louver motors 43a and 46a at a predetermined rotation angle, the center and side louvers 4 are stopped.
3 and 46 are fixed in a state facing the occupant's neck in the Dr-side and Pa-side air-conditioning areas. When it is detected that only one of the occupants in the Dr-side and Pa-side air-conditioning areas is exposed to solar radiation, only the louver device in the grill that blows cool air to the occupants in one of the air-conditioning areas is operated. ,
Each center of the louver device and the side louvers 43 and 46 are fixed so as to face the occupant's neck.

Thus, the air is cooled by the evaporator 45 in the air-conditioning duct 2 and the Dr-side center FACE outlet 2
1. Dr side FACE outlet 22, Pa side center F
ACE outlet 31 and Pa side FACE outlet 3
The cold air blown out of the air conditioner 2 is locally concentrated near the occupant's neck in the Dr-side and Pa-side air-conditioning areas, as indicated by solid arrows in FIGS. When the outlet mode is set to the FOOT mode or the F / D mode and the local cooling operation is performed, the cool air flows from the Dr-side FACE outlet 22 and the Pa-side FACE outlet 32 only from the Dr-side and the Pa-side FACE outlet 32. It is blown out so as to concentrate locally near the occupant's neck in the side air conditioning area.

However, if a specific part (near the neck) of the occupant's body receives local (spot-like) cold air for a long time, the skin of the hand gripping the steering wheel located between the outlet and the neck. In order to prevent the temperature from dropping and the occupants becoming uncomfortable (feeling cold), the fixed time in the occupant neck direction is determined based on the actual blowing temperature and the actual blowing air volume (blower control voltage), which are closely related to the feeling of local cooling. By calculating the fixed time in the occupant shoulder direction from the fixed time in the occupant neck direction, the Dr side, Pa
The first blowing state (see solid arrows in FIGS. 22A and 22B) in which cold air is locally concentrated near the neck of the occupant in the side air-conditioning area, and the vicinity of the shoulder of the occupant in the Dr-side and Pa-side air-conditioning areas The second blowing state (see the dashed arrow in FIG. 22 (a) and the solid arrow in FIG. 23 (a)) where cold air is locally concentrated locally is alternately repeated. In the second blowing state, as shown by the solid arrow or the broken arrow in FIG. 23B, one of the conditioned air blown from the center and the side grills 41 and 42 is concentrated near the neck of each occupant. The other may be concentrated near the shoulder of each occupant. Therefore, during the local cooling operation, the conditioned air is not directed to the body other than the occupants in the Dr-side and Pa-side air-conditioning areas, that is, the cooling feeling of each occupant is not impaired. Since each occupant in the side air-conditioning area does not feel hot or too cold, it does not impair the comfort of each occupant, so that each occupant does not feel uncomfortable.

B) During local heating operation When the outside air temperature is lower than the set temperature on the Dr and Pa sides, for example, in winter, the outlet mode is generally set to FO.
The mode is set to the OT mode or the F / D mode. And
At the time of warm-up after parking for a long time in extreme cold, when the blower 4 blows at the maximum air flow (the blower control voltage applied to the blower motor 9 is the maximum value), or when the target blow-out temperature obtained by calculation is the maximum heating operation mode ( For example, MAX HO
At the time of T), or when the solar radiation is not shining into the Dr-side and Pa-side air-conditioning areas, the louver motors 43a and 46a of the louver devices in the Dr-side and Pa-side side grills 42, respectively.
By stopping at a predetermined rotation angle, the side louvers 4
3 and 46 are fixed in a state facing the occupant's neck in the Dr-side and Pa-side air-conditioning areas. If it is detected that only one of the occupants in the Dr-side and Pa-side air-conditioning areas is exposed to sunlight, only the louver device in the grill that blows warm air to the occupants in the other air-conditioning area is operated. And
Each center of the louver device and the side louvers 43 and 46 are fixed so as to face the occupant's neck.

As a result, the warm air heated by the heater core 13 in the air conditioning duct 2 and blown out from the Dr side FACE outlet 22 and the Pa side FACE outlet 32 is shown in FIGS. 22 (a) and 22 (b). As shown by the solid line arrows in FIG. 3, the concentration is locally concentrated near the occupant's neck in the Dr-side and Pa-side air-conditioning areas. When the outlet mode is set to the FACE mode or the B / L mode and the local heating operation is performed, warm air is also supplied from the Dr side center FACE outlet 21 and the Pa side center FACE outlet 31 to the Dr side, The air is blown out so as to be locally concentrated near the occupant's neck in the Pa side air conditioning area.

However, if a specific portion (near the neck) of the occupant's body receives hot air locally (spot-like) for a long time, the hand gripping the steering wheel located between the outlet and the neck. In order to prevent the skin temperature from rising and the occupant becoming uncomfortable (feeling hot), the occupant's neck fixed time based on the actual blowing temperature and the actual blowing air volume (blower control voltage) that is deeply related to the feeling of local heating By calculating the fixed time in the occupant's shoulder direction from the fixed time in the occupant's neck direction, the Dr side, Pa
The first blowing state (see solid arrows in FIGS. 22A and 22B) in which warm air is locally concentrated near the neck of the occupant in the side air conditioning area and the shoulder of the occupant in the Dr side and Pa side air conditioning areas The second blowing state (see the dashed arrow in FIG. 22A and the solid arrow in FIG. 23A) in which hot air is locally concentrated in the vicinity is alternately repeated. In the second blowing state, as shown by the solid arrow or the broken arrow in FIG. 23B, one of the conditioned air blown from the center and the side grills 41 and 42 is concentrated near the neck of each occupant. The other may be concentrated near the shoulder of each occupant. Therefore, during the local heating operation, the conditioned air is not directed to the body of each occupant in the Dr-side and Pa-side air-conditioning areas other than the body of each occupant, that is, the feeling of heating of each occupant is not impaired. You don't feel cold or too hot.
Since the comfort of each occupant in the r-side and Pa-side air-conditioning areas is not impaired, each occupant does not feel uncomfortable.

[Effects of the First Embodiment] As described above, in the vehicle air conditioner of the present embodiment, during the local cooling operation or the local heating operation, the blowout temperature or the temperature closely related to the local cooling feeling and the local heating feeling. The length of the fixed time in the occupant's neck direction and the length of the fixed time in the occupant's shoulder direction are changed based on the blown air amount (blower control voltage). Therefore, the target blowing temperatures on the Dr side and Pa side, at least
Side and Pa side are set so that the set temperatures are different,
And the duration of the first blowing state in which the cold air or the hot air is locally concentrated near the neck of the occupant in the Pa-side air-conditioning area, that is, the time of switching from the first blowing state to the second blowing state,
The duration of the second blowing state in which the cold air or the hot air is locally concentrated near the shoulders of the occupants in the Dr-side and Pa-side air conditioning areas;
That is, the timing of switching from the second blowing state to the first blowing state can be independently changed for each of the Dr-side and Pa-side air conditioning areas. Thereby, the local cooling operation or the local heating operation corresponding to the local cooling feeling or the local heating feeling for each occupant in each air conditioning area can be performed. further,
The demand for the local cooling feeling or the local heating feeling for each occupant in each air conditioning area can be surely satisfied.

[Second Embodiment] FIG. 24 shows a second embodiment of the present invention, and is a diagram showing a Dr side, Pa side center grill and an air conditioner operation panel.

In this embodiment, the air conditioner operation panel 51
Integrally with the FACE outlets 21, 22, 31, and 32 in the Dr-side air-conditioning area and the Pa-side air-conditioning area (the center, side louvers 4).
A louver operation (SWINGSW) panel 100 for operating the swing state (3, 46 swing states) is provided.

The louver operation panel 100 has a MATC
It comprises an H switch 101, a Dr switch 102, a Pa switch 103, and a swing mode changeover switch 104. The swing mode changeover switch 1
04 is the swing mode changeover switch 6 of the first embodiment.
STOP (swing stop), AUT
This is a rotary switch having switching positions of O (auto swing), Rr, U-DSWING (vertical swing), and R-LSWING (horizontal swing).

The MATCH switch 101, the Dr switch 102, and the Pa switch 103 are push switches having a normal position (OFF) and a depressed position (ON). When the MATCH switch 101 is turned on, the center on the Dr side and the Pa side, the side louvers 43 and 46
Is output so as to swing at least one of them. When the Dr switch 102 is turned on, Dr
The output is such that at least one of the center on the side and the side louvers 43 and 46 swings. Furthermore, Pa
When the switch 103 is turned on, an output is made to swing at least one of the center on the Pa side and the side louvers 43 and 46.

[Third Embodiment] FIGS. 25 to 27 show a third embodiment of the present invention, and FIG. 25 is a diagram showing a configuration of a louver left-right swing mechanism of a louver device.

The louver left-right swing mechanism 14 of the present embodiment.
Numeral 0 is installed in the centralized diffusion grills 120, 130 forming the center and side FACE outlets 121, 131. The louver left-right swing mechanism 140 includes a plurality of (three in this example) first to third swingably mounted left and right swingers in the centralized diffusion grills 120 and 130.
A louver 141 and a plurality of (three in this example) first to third link plates 143 for swinging the first to third louvers 141 in a predetermined swing range in the left-right direction about each fulcrum 142. A flat plate 145 for rotating the first to third link plates 143 about the fulcrum 144; and a louver driving means (for reciprocating the flat plate 145 in the front-rear direction with respect to the traveling direction of the vehicle). Louver motor 146 as an actuator)
It is composed of Plural first to third louvers 14
Reference numeral 1 corresponds to the blowing direction changing means and the blowing state changing means of the present invention.

The first to third link plates 143 are formed with elliptical engagement holes 148 to which cylindrical pins 147 provided on the upper end surfaces of the first to third louvers 141 engage. I have. The flat plate 145 has a cylindrical pin 1 provided on the upper end surface of each link plate 143.
The first to third engagement holes 151 to 153 with which the first and second holes 49 are engaged, and the rack 1 provided on the upper end surface on the louver motor 146 side.
54 are formed. The first to third engagement holes 151
The order of forming 153 is reversed between the centralized diffusion grill 120 and the centralized diffusion grill 130.

Further, the flat plate 145 is provided with guides 155 provided on the outer wall surfaces of the centralized diffusion grills 120 and 130.
And guided by rails 156 so as to be slidable on the outer wall surface in the front-rear direction of the vehicle. Louver motor 1
46 is installed on a mounting base 157 mounted on the outer wall surface of the centralized diffusion grills 120 and 130. Also,
A rack 1 is mounted on the outer periphery of the tip of the output shaft of the louver motor 146.
A pinion 159 meshing with the pinion 54 is assembled.

In the present embodiment, by operating the louver motor 146, as shown in FIG. 26, the flat plate 145 is positioned on the outer wall surface of the centralized diffusion grills 120 and 130 at the rearmost side of the vehicle (the side closer to the occupant). When it is located, the first to third louvers 141 turn leftward in the drawing (toward the occupant), so that the conditioned air blown out from the centralized diffusion grills 120 and 130 is applied to a part of the occupant's body (for example, the head and chest) in the conditioned area. The spot blowing mode (first blowing state) that blows out locally is set.

By operating the louver motor 146 in the reverse rotation direction to the above, as shown in FIG. 27, the flat plate 145 is located on the outer wall surface of the centralized diffusion grills 120 and 130 at the most front side of the vehicle (from the occupant). When the louver 141 is located on the side away from the vehicle, the first louver 141 faces right (in the direction of removing the occupant), the second louver 141 faces upward (in the center), and the third louver 141 faces left (in the occupant). As a result, the centralized diffusion grills 120, 1
The air-conditioning air blown from the air conditioner 30 is set to a wide air-blowing mode (second air-blowing state) in which the air-conditioning air is diffusely blown into the air-conditioning area.

[Fourth Embodiment] FIGS. 28 and 29 show a fourth embodiment of the present invention. FIG. 28 is a diagram showing an instrument panel of a vehicle, and FIG. 29 is a face duct of an air conditioning unit. FIG.

In this embodiment, the partition plate 14 in the air conditioning duct 2 of the first embodiment is omitted. As the front seat-side FACE outlet, a wide-flow FACE outlet 161 that opens at the most air downstream side of the face duct 160 connected to the air downstream end of the air conditioning duct 2 is provided. The wide flow FACE outlet 161 is provided on the Dr side opening at the center of the front of the instrument panel 40,
The Pa side center FACE outlets 162 and 163 and both sides of the instrument panel 40 in the vehicle width direction, that is, the Dr side, Pa which opens near the side window glass of the vehicle.
Side side FACE outlets 164, 165 and these F
Dr side, Pa side middle FA opening between ACE outlets
CE outlets 166 and 167 are provided. Each of the FACE outlets 162 to 167 is provided with a plurality of louvers for changing the blowing direction of the conditioned air by manual operation of the occupant.

The face duct 160 is provided with each F
FACE for opening and closing ACE outlets 162 to 167
A door 171 is rotatably mounted, and a Dr-side middle FACE door 172 for opening and closing the Dr side, middle FACE outlets 164, 166 is rotatably mounted, and a Pa side, middle FACE. Pa side middle FAC for opening and closing the outlets 165 and 167
An E door 173 is rotatably mounted. In addition,
The Dr side, Pa side middle FACE doors 172, 173 are
It corresponds to the blowing state changing means of the present invention, and the Dr, Pa side FACE outlets 164, 165 according to the opening degree.
And Dr, Pa side middle FACE outlets 166, 16
7 to change the air-conditioning air blowing state (for example, the wide blowing mode and the spot blowing mode) blown into each air-conditioning area.

In the present embodiment, the FACE door 171 is moved to the open side by an actuator such as a servomotor,
The Dr-side and Pa-side middle FACE doors 172 and 173 are moved to the closing side by an actuator such as a servomotor.
Thereby, Dr side, Pa side center FACE outlet 1
62, 163 and the Dr-side and Pa-side side FACE outlets 164 and 165 are opened, and the Dr-side and Pa-side middle FAs are opened.
By closing the CE outlets 166 and 167 to reduce the opening area of the wide flow FACE outlet 161, the blowout range of the conditioned air blown out from the wide flow FACE outlet 161 is reduced, and The conditioned air is locally blown to a part of the occupant's body (spot blowing mode: first blowing state).

Also, the FACE door 171 is moved to the open side, and the Dr-side and Pa-side middle FACE doors 172 and 173 are moved.
To the middle position. Thereby, Dr side, Pa side center FACE outlets 162, 163, Dr side, Pa side FACE outlets 164, 165 and Dr side, Pa side
By opening the side middle FACE outlets 166 and 167 to increase the opening area of the wide flow FACE outlet 161, the wide flow FACE outlet 16 is opened.
The air-conditioning air blown out from 1 is enlarged to blow out the air-conditioning air diffusely into the air-conditioning area (wide blowing mode: second blowing state).

It should be noted that FACE is placed in face duct 160.
A door may be added to perform more minute change control of the air distribution amount, or one or more partition plates may be inserted into the air-conditioning duct 2 and the face duct 160, and a blower may be provided for each air passage. May be arranged to vary the air flow rate of each blower, thereby changing the air flow rate for each occupant in the Dr-side and Pa-side air-conditioning areas.

[Fifth Embodiment] FIG. 30 shows a fifth embodiment of the present invention, and FIG. 30 shows a drum ventilator for a vehicle.

The vehicle drum ventilator according to the present embodiment has a cylindrical case 20 connected to a face duct of an air conditioning duct in an instrument panel 201 of an automobile.
2 are provided. This case 202 has an FA inside.
A CE outlet 203 is formed. A cylindrical air distribution drum (corresponding to the blowing direction changing means and the blowing state changing means of the present invention) 2 is provided in the air downstream end of the case 202.
04 is provided rotatably.

A vertical louver 205 is supported inside the air distribution drum 204 so as to be rotatable left and right.
A horizontal louver 206 is provided so as to form a lattice in combination with the above. A damper 207 that adjusts the amount of conditioned air blown out from the FACE outlet 203 is rotatably supported in the air upstream end of the case 202. The vertical louver 205 and the horizontal louver 206 are given a swinging motion by an actuator such as a louver motor via a link mechanism (not shown) in the same manner as in the first embodiment. Here, the air distribution drum 204 of the present embodiment
Is a cylindrical first drum 211 rotatably attached to the front end of the case 202;
1 and a cylindrical second drum 212 incorporated in the first drum 212.

In the present embodiment, when changing the blowing direction of the conditioned air, the direction of the front opening of the second drum 212 may be changed. For example, as shown in FIG. 30, the case 202, the first drum 211, and the second drum 21
When the center axes of the two are substantially coincident with each other, the blowing direction of the conditioned air is obliquely upward and the first blowing state in which the conditioned air blows locally near the occupant's head in the conditioned area. Further, by rotating the first drum 211 and the second drum 212 counterclockwise with respect to the center axis of the case 202, the blowing direction of the conditioned air becomes downward, and the vicinity of the occupant's chest in the conditioned area is reduced. In the second blowing state.

[Sixth Embodiment] FIGS. 31 and 32 show a sixth embodiment of the present invention.
2 is a view showing an air blowing louver.

The air blowing louver 220 of the present embodiment corresponds to the blowing direction changing means and the blowing state changing means of the present invention, and has, for example, an elongated cylindrical shape made of a resin material and has a D-shaped cross section at one end surface. An engagement hole 221 is provided, and a fitting hole 222 is provided on the other end surface. An air passage 223 is provided at a position eccentric to the rotation axis O of the air blowing louver 220, and extends in the axial direction of the air blowing louver 220.
At a position opposite to 3, a closing portion 224 is provided in the axial direction. That is, the closing portion 224 has a convex arc surface 225 passing through the rotation axis O about the center of curvature, and is formed solidly by the convex arc surface 225 and a part of the outer peripheral surface of the air blowing louver 220. A hollow portion 226 is formed at the center of the closing portion 224 in the axial direction.

The air blowing louver 220 has a concave arc surface 227 centered on the curvature center, and the fin 228 is formed by the concave arc surface 227 and a part of the outer peripheral surface of the air blowing louver 220. An air passage 223 is formed between the convex arc surface 225 and the concave arc surface 227 to form an arc having a constant width. Further, the air passage 223
An arc-shaped rectifying fin 229 is provided in the middle of the width direction.

The air blowout louver 220 as described above is housed in an elongated rectangular air blowout opening (not shown) opened at the most downstream side of the air blowout duct. The engaging hole 221 of the air blowout louver 220 has a D-shaped engaging shaft portion 23 formed on the rotating shaft 231 of the motor 230.
2 are engaged. A bearing pin 233 projecting from the side wall of the air blowing duct is rotatably fitted into the fitting hole 222. Therefore, the air blowing louver 220
Are supported at two points by a rotating shaft 231 and a bearing pin 233 of the motor 230, are rotatable about a rotating axis O, and are configured to be able to change the blowing direction of the conditioned air blown from the air outlet. ing.

That is, also in the present embodiment, by rotating the air blowing louver 220 about the rotation axis O, the blowing direction of the conditioned air blown out from the air blowing port is changed by the occupant's body in the conditioned area. The first blowing direction that is locally blown toward a part (for example, near the head or neck) and the blowing direction of the conditioned air blown from the air outlet are changed to other parts of the occupant's body in the air-conditioned area (for example, the chest or (The vicinity of the shoulder) can be switched to the second blowing direction that blows out locally.

[Structure of Seventh Embodiment] FIGS. 33 to 3
6 shows a seventh embodiment of the present invention, FIG. 33 is a view showing an instrument panel, and FIG. 34 is a view showing an air outlet duct, a support frame and a rotary valve.

In the present embodiment, an air conditioning unit 302 for air-conditioning the interior of the vehicle is installed at the lower part inside the instrument panel 301 of the automobile. Further, on the front surface of the instrument panel 301, an air outlet duct 304 which has a U-shaped cross section and forms a linear air outlet 303 elongated in the vehicle width direction is attached. Further, a wind guide duct 305 for guiding the conditioned air from the air conditioning unit 302 to the air outlet 303 is connected to the back of the blow duct 304.

[0128] A louver support frame 306 is attached to the front surface of the blow-out duct 304. The louver support frame 306 blows out the conditioned air blown from the air outlet 303 into the air-conditioning area of the passenger compartment. A vertical louver 307 and a horizontal louver 309 for changing the direction are provided in a lattice shape. On the air upstream side of the louver support frame 306, there is provided a rotary valve 310 that changes the degree of opening of the air outlet 303 and varies the amount of air distribution.

The rotary valve 310 corresponds to the blow direction changing means and the blow state changing means of the present invention, and its support shaft 311 is rotatably supported by the slit 312 of the blow duct 304. The rotary valve 310 has a substantially half-cylindrical shape having end walls 313 at both ends thereof, and a rear edge 314 that is one end of the surface shape of the rotary valve 310 on the air upstream side is formed in a substantially linear shape. A front edge 3 which is one end side of the surface shape of the rotary valve 310 on the downstream side of the air.
Reference numeral 15 denotes a central horizontal straight portion 316 and a substantially arc-shaped curved portion 31 formed on the left and right sides of the horizontal straight portion 316.
7 is comprised. That is, the rotary valve 310
Has a semi-circular shape in the horizontal linear portion 316 and a semi-circular shape in the curved portion 317 from the semi-circular shape toward the left and right ends.
The shape gradually changes to a semicircular shape.

Further, an adjustment dial 319 for rotating the rotary valve 310 to adjust the state of blowing the conditioned air is fixed to the outer end of the support shaft 311 of the rotary valve 310. The pivot 311 of the rotary valve 310 is rotated by an actuator such as a valve motor via a link mechanism (not shown) in the same manner as in the first embodiment.

[Operation of Seventh Embodiment] Next, the operation of the present embodiment will be briefly described with reference to FIGS. Here, FIGS. 35 (a) to 35 (c) are diagrams showing the rotating position of the rotary valve in the spot blowing mode.
FIGS. 6 (a) to 36 (c) are views showing the rotation position of the rotary valve in the wide blowing mode.

When the rotary valve 310 is driven to the rotation position in the spot blowing mode by the actuator, the center of the air outlet 303 is completely closed by the rotary valve 310 as shown in FIG. 35 (b) and (c) at the left and right ends of the air outlet 303.
As shown in (2), as the air outlet 303 approaches the left and right ends, the air outlet 303 is gradually widened. As a result, the conditioned air from the air conditioning unit 302 is not blown out at all from the center of the air outlet 303, but is blown out in large quantities gradually toward the left and right ends of the air outlet 303. As a result, in front of the left and right end portions of the air outlet 303, a spot blowing mode (first blowing state) in which a large amount of conditioned air is blown intensively to a part of the occupant's body (for example, the head and chest) in the air conditioning area. Is performed.

On the other hand, the rotary valve 3 is
When the air outlet 10 is driven to the rotation position in the wide air blowing mode, the air outlet 303 is substantially fully opened at both the center portion and the left and right end portions, as shown in FIGS. Thus, the conditioned air from the air conditioning unit 302 is supplied to the air outlet 3
The wide blowing mode (second blowing state) in which the air is blown uniformly into the air-conditioning area over the entire length of No. 03 is performed.

[Eighth Embodiment] FIG. 37 shows an eighth embodiment of the present invention, and FIGS. 37 (a) to 37 (e) show a modification of the rotary valve.

Each of the rear edges 314 of the rotary valve 310 shown in FIGS. 37 (a) to 37 (d) is formed linearly like the rear edge 314 of the seventh embodiment.
The shapes of 21 to 325 are different from each other. That is, the front end 321 of the rotary valve 310 in FIG.
A U-shaped concave portion 326 is formed in the center of the horizontal straight portion 316 at the front edge of the embodiment. In the spot blowing mode, the conditioned air flows not only from the curved portion 317 but also from the concave portion 326. It is blown out intensively.

The rotary valve 310 shown in FIG.
The front end edge 322 of the seventh embodiment is such that the left curved portion is eliminated except for the right curved portion 317 of the seventh embodiment, and the conditioned air is intensively blown out only from the curved portion 317. Also,
The front edge 323 of the rotary valve 310 in FIG. 37C is formed in an inverted V shape over the entire length of the rotary valve 310,
The amount of air blown from the conditioned air gradually increases from the center toward the left and right ends.

The rotary valve 310 shown in FIG.
37 (c) is formed in a V-shape, which is opposite to the rotary valve 310 in FIG. 37 (c), and the amount of blown air-conditioned air gradually increases from the left and right ends toward the center. The height of the front edge 325 of the rotary valve 310 in FIG. 37 (e) gradually decreases linearly from the left end to the right end, and the amount of conditioned air blowout gradually increases from the left end to the right end. It is increasing.

[Other Embodiments] In this embodiment, when the outlet mode is the FOOT mode or the F / D mode, the Dr
Side FACE outlet 22 and Pa side FAC
Although the conditioned air (mainly hot air) is blown out from the E outlet 32, the Dr side FACE outlets 22 and P only when the outlet mode is the FACE mode or the B / L mode.
The conditioned air may be blown out from the a side FACE outlet 32.

In this embodiment, the Dr side, the Pa side center grille 41, the Dr side, and the Pa side side grille 42 are fixed to the instrument panel 40. However, each center and the side grille are rotatably supported in the left and right direction. The center and side grills may be mounted on the storage member in a state where they are rotatably supported in the vertical direction. In this case, the grill main body may be swung as the blowing direction changing means or the blowing state changing means.

In the present embodiment, the blowing direction changing means such as a variable louver or a variable grill is used for each of the FACE outlets 21 and 2.
2, 31 and 32, but a blowing direction variable means such as a variable louver or a variable grill is provided at an air outlet provided in a vehicle side surface in a vehicle interior, a central portion (for example, near a console box) in the vehicle interior, or a ceiling portion of the vehicle. May be provided. In the present embodiment, as the louvers, both the center that swings horizontally and the side louvers 43 and both the center that swings vertically and the side louvers 46 are provided in each FACE outlet, but each FACE outlet is used as a louver. Only one of the center oscillating in the horizontal direction and the side louvers 43 or the center oscillating in the vertical direction and the side louvers 46 may be provided.

In this embodiment, by rotating one blower 4, each FACE outlet 21 of the air conditioning duct 2
The air-conditioning air was blown into the passenger compartment from 22, 31, and 32. However, the amount of air-conditioning air blown out from the Dr-side and Pa-side FACE outlets of the air-conditioning duct 2 into the passenger compartment by rotating two blowers. May be configured to be changeable, and it is possible to change the air distribution amount for blowing out the conditioned air into the passenger compartment from each FACE outlet of the air conditioning duct 2 by rotating the number of blowers corresponding to the number of the FACE outlets. It may be configured as follows. Further, the air volume may be adjusted independently for each FACE outlet, or for one side and the other side.

In this embodiment, the solar radiation sensor 93 having the solar radiation intensity detecting means, the solar radiation direction detecting means and the solar radiation altitude detecting means is provided as the air conditioning load detecting means. However, the solar radiation sensor having at least the solar radiation intensity detecting means may be provided. good.
In this case, the microcomputer inputs the solar radiation intensity signal from the solar radiation sensor to calculate the solar radiation direction and the solar radiation altitude (sun elevation angle). If the microcomputer of the car navigation system stores the solar altitude at that date and the solar radiation direction with respect to the current position of the vehicle as a solar radiation sensor, the output signal of the car navigation system is transmitted to the air conditioner ECU as a solar radiation sensor signal. You may make it read.

In the present embodiment, the present invention controls the right and left (left and right with respect to the traveling direction of the vehicle) temperature control of the Dr side air conditioning area (one side air conditioning area) and the Pa side air conditioning area (the other side air conditioning area). Although the present invention is applied to an air conditioner for a vehicle that can be operated independently, the present invention is applied to the front and rear air conditioning areas of the front seat side (one side air conditioning area) and the rear seat side (other air conditioning area) in the vehicle interior. The present invention may be applied to a vehicle air conditioner capable of performing temperature adjustment (before and after with respect to the traveling direction of the vehicle) independently of each other. Further, the present invention may be applied to an air conditioner for a vehicle in which the temperature inside the vehicle compartment is adjusted by one outlet temperature varying means.

In the present embodiment, as the physical quantities closely related to the local cooling feeling or the local heating feeling, the temperature of the air passing through the side face duct (actual blow temperature) and the blower control applied to the blower motor 9 of the blower 4 are described. Using the voltage (actual blowing air volume), the occupant neck fixed time (occupant direction fixed time, occupant concentration time) or the occupant shoulder fixed time (blowing state change time) was calculated (determined). Alternatively, the occupant direction fixed time, the occupant concentration time, or the blowing state change time may be calculated (determined) by using the vehicle outside temperature (outside air temperature) as a physical quantity closely related to the feeling of local heating.

In the present embodiment, the blow-out temperature of the air blown out of the vehicle interior is changed to the Dr-side and Pa-side blowout temperature sensors 94a, 94b.
Although detected at b, the blowout temperature of the air blown into the vehicle compartment may be calculated from the calculated target blowout temperature, the post-evaporation temperature, the A / M opening of the A / M door, the cooling water temperature, and the like.

In the present embodiment, as the first blowing direction and the first blowing state, a blowing direction variable means (such as a variable louver) such as a variable louver is used to locally concentrate the conditioned air near the occupant's neck in each air conditioning area. Variable means), but the first blowing direction,
As the first blowout state, the blowout direction changing means (blowing state changing means) is controlled so as to blow out conditioned air to other parts of the body such as the head, face, head and chest, or hands of the occupant in each air conditioning area. May be.

In the present embodiment, the blowing direction changing means such as a variable louver is directed as the second blowing direction so as to locally concentrate the conditioned air near the occupant's shoulder in each air conditioning area. As the direction, the blowing direction changing means may be controlled so as to blow the conditioned air to other parts of the body such as the head, face, head and chest, hands, waist or thigh of the occupant in each air conditioning area. .

In this embodiment, as the second blowing state, the blowing state changing means such as a variable louver is directed so as to locally concentrate the conditioned air near the occupant's shoulder in each air conditioning area. As the state, the blowing state changing means may be controlled so that the blowing direction is different from the first blowing state, and at least one of the blowing position, the blowing range, the blowing air volume, and the blowing temperature is changed to the first blowing state. You may change it so that it may differ from. Here, when changing the blowing range, the mode is changed from the spot blowing mode to the wide blowing mode, from the blowing state in which the variable louver is fixed to the blowing state in which the variable louver is swung, the center FACE outlet or the side FACE outlet. The direction of the conditioned air blown out from at least one of the FACE outlets may be directed to the direction in which the occupant is removed.

In the present embodiment, a DC servo motor is used as the actuator, but a stepping motor may be used. In this case, since the blowing direction (wind direction) can be detected by counting the number of pulses from the reference position, the potentiometers 97 and 98 need not be provided. It is desirable that the occupant can select ON or OFF for each function of the present embodiment by operating a multi-display or the like.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an overall configuration of a vehicle air conditioner (first embodiment).

FIG. 2 is a front view showing an instrument panel of the vehicle (first embodiment).

FIG. 3 is a front view showing an air conditioner operation panel and Dr-side and Pa-side louver operation panels (first embodiment).

FIG. 4 is a schematic view showing the entire configuration of the louver device (first embodiment).

FIG. 5 is a schematic diagram showing a configuration of a louver left-right swing mechanism (first embodiment).

FIG. 6 is a schematic view showing a configuration of a louver vertical swing mechanism (first embodiment).

FIG. 7 is a flowchart illustrating an example of a control program of the air conditioner ECU (first embodiment).

FIG. 8 is a characteristic diagram showing blower control voltage characteristics with respect to target blow temperatures on the Dr side and the Pa side (first embodiment).

FIG. 9 is a characteristic diagram showing outlet mode characteristics with respect to target outlet temperatures on the Dr side and Pa side (first embodiment).

FIG. 10 is a flowchart showing louver control by the air conditioner ECU (first embodiment).

FIG. 11 is a flowchart showing louver control by the air conditioner ECU (first embodiment).

FIG. 12 is a flowchart illustrating louver control by the air conditioner ECU (first embodiment).

FIG. 13 is a flowchart showing louver control by the air conditioner ECU (first embodiment).

FIG. 14 is a flowchart showing louver control by the air conditioner ECU (first embodiment).

FIG. 15 is a characteristic diagram showing the occupant neck fixed time characteristic with respect to the blowing temperature (first embodiment).

FIG. 16 is a characteristic diagram showing characteristics of the occupant's neck fixed time with respect to the blower control voltage (first embodiment).

FIG. 17 is a characteristic diagram showing an occupant shoulder fixed time characteristic with respect to an occupant neck fixed time (first embodiment).

FIG. 18 is a schematic diagram showing swing heights of a center and a side louver (first embodiment).

FIG. 19 is a schematic diagram showing swing positions of a center and side louvers (first embodiment).

20 (a) is a characteristic diagram showing a louver swing range characteristic with respect to a driver's seat side, a passenger seat side's solar radiation direction, and solar radiation intensity during cooling operation, and (b) is a graph showing inside air temperature during cooling operation. FIG. 4 is a characteristic diagram illustrating a correction angle characteristic (first embodiment).

21 (a) is a characteristic diagram showing the louver swing range characteristics with respect to the driver's seat side and the passenger's seat side solar radiation direction and the solar radiation intensity during the heating operation, and FIG. 21 (b) is a graph showing the inside air temperature during the heating operation. FIG. 4 is a characteristic diagram illustrating a correction angle characteristic (first embodiment).

FIGS. 22A and 22B are schematic diagrams showing a state in which conditioned air blown from a center and a side grill is concentrated near the neck of each occupant (first embodiment).

FIG. 23 (a) is a diagram showing a state in which conditioned air blown out from a center and a side grill is concentrated near the shoulders of each occupant;
(B) is a schematic diagram showing a state in which one of the conditioned air blown out from the center and the side grill is concentrated near the neck of each occupant, and the other is concentrated near the shoulders of each occupant (first embodiment). .

FIG. 24 is a front view showing a Dr side, Pa side center grill and an air conditioner operation panel (second embodiment).

FIG. 25 is a perspective view showing a configuration of a louver left-right swing mechanism (third embodiment).

FIG. 26 is an explanatory diagram showing a case where the state of blowing from a centralized diffusion grill is a spot blowing mode (third embodiment).

FIG. 27 is an explanatory diagram showing a case where the state of blowing from the centralized diffusion grill is in a wide blowing mode (third embodiment).

FIG. 28 is a front view showing an instrument panel of a vehicle (fourth embodiment).

FIG. 29 is a schematic view showing a face duct of an air conditioning unit (fourth embodiment).

FIG. 30 is a sectional view showing a vehicle drum ventilator (fifth embodiment).

FIG. 31 is a perspective view showing an air blowing louver (sixth embodiment);
Embodiment).

FIG. 32 is a sectional view showing an air blowing louver (sixth embodiment);
Embodiment).

FIG. 33 is a front view showing an instrument panel (seventh embodiment).

FIG. 34 is a view showing an air outlet duct, a support frame, and a rotary valve (seventh embodiment).

FIGS. 35 (a) to (c) are cross-sectional views showing the rotational position of the rotary valve in the spot blowing mode (seventh embodiment).

FIGS. 36 (a) to (c) are cross-sectional views showing a rotation position of a rotary valve in a wide blowing mode (seventh embodiment).

FIGS. 37 (a) to (e) are perspective views showing a modification of the rotary valve (eighth embodiment).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Air-conditioning unit 2 Air-conditioning duct 4 Blower (blower) 21 Dr side center FACE outlet 22 Dr side side FACE outlet 31 Pa side center FACE outlet 32 Pa side side FACE outlet 43 Center, side louver (blowing direction variable means, outlet) State variable means) 46 center, side louver (blowing direction variable means, blowing state variable means) 50 air conditioner ECU (air conditioning controller, concentration time determining means) 94a Dr side blowing temperature sensor 94b Pa side blowing temperature sensor

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuji Ito 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Inside DENSO Corporation

Claims (11)

[Claims] (A) an air conditioning duct having an air outlet for blowing air conditioning air toward a vehicle interior; and (b) a direction in which the air conditioning air blowing from the air outlet is blown into the interior of the vehicle. A blowing direction changing means that can be changed to a first blowing direction directed toward the vehicle and a second blowing direction directed to the other part of the body of the occupant; and (c) blowing of conditioned air blown into the passenger compartment from the outlet. After controlling the blowing direction changing means to direct the direction to the first blowing direction, after the occupant direction fixed time has elapsed, the blowing direction of the conditioned air blown into the vehicle interior from the blowing port is changed to the second blowing direction. An air conditioning system for a vehicle, comprising: an air conditioning control device that controls the blowing direction changing means so as to direct the air flow. 2. The vehicle air conditioner according to claim 1, wherein the air conditioning control device sets the length of the occupant direction fixed time to:
An air conditioner for a vehicle, characterized in that it is determined in accordance with a physical quantity closely related to a feeling of local cooling or a feeling of local heating. 3. The vehicle air conditioner according to claim 2, wherein the physical quantity deeply related to the local cooling sensation or the local heating sensation is the temperature of the conditioned air blown from the outlet, the amount of the blown air, or the temperature outside the vehicle compartment. A vehicle air conditioner, wherein the physical quantity is at least one of the following physical quantities. 4. The air conditioner for a vehicle according to claim 2, wherein the air conditioning control device is configured such that during a cooling operation, the lower the blow-out temperature, the larger the blow-out air amount, and the lower the vehicle exterior temperature, The length of the occupant direction fixed time is set to be short, and during the heating operation, the higher the blowing temperature, the larger the blowing air volume,
A vehicle air conditioner wherein the length of the occupant direction fixed time is set shorter as the vehicle outside temperature is higher. 5. The air conditioner for a vehicle according to claim 1, wherein the air outlet is a one-side air outlet for blowing conditioned air toward one side air-conditioning area in a vehicle cabin. And the other side air outlet for blowing out the conditioned air toward the inside of the other side air conditioning area of the vehicle interior different from the one side air conditioning area, and the blowing direction variable means is provided from the one side air outlet to the one side air outlet. One-side blowing direction changing means capable of changing the blowing direction of the conditioned air blown into the side air-conditioning area, and changing the blowing direction of the conditioned air blown out from the other side air outlet into the other side air-conditioning area. The air-conditioning control device is capable of changing the blowing direction of the conditioned air in the one-side air-conditioning area and changing the blowing direction of the conditioned air in the other-side air-conditioning area. Independence As carried out, the one air conditioning system and controls the lateral blow direction changing means and the other side blowing-direction changing unit. 6. An air-conditioning duct having an air outlet for blowing air-conditioned air toward a vehicle interior; and (b) a state of air-conditioned air being blown out from the air outlet into the vehicle interior, a part of an occupant's body. Blowout state changing means capable of changing between a first blowout state in which the air is locally concentrated and a second blowout state in which the blowout state is different from the first blowout state; and (c) a feeling of local cooling or a feeling of local heating. Concentration time determination means for determining the occupant concentration time of a length corresponding to the physical quantity deeply related to, the blowing state of the conditioned air blown into the vehicle compartment from the outlet,
After controlling the blowing state changing means so as to set the first blowing state, after the occupant concentration time determined by the concentration time determining means elapses, the blowing state of the conditioned air blown into the passenger compartment from the blowing port To
An air conditioner for a vehicle, comprising: an air conditioning control device that controls the blowing state changing means so as to change to the second blowing state. 7. The vehicle air conditioner according to claim 6, wherein the physical quantity deeply related to the local cooling sensation or the local heating sensation is the temperature of the conditioned air blown from the outlet, the amount of the blown air, or the temperature outside the vehicle compartment. A vehicle air conditioner, wherein the physical quantity is at least one of the following physical quantities. 8. The air conditioner for a vehicle according to claim 6, wherein the concentration time determining means is configured such that during cooling operation, the lower the blow-out temperature, the larger the blow-out air amount, and the lower the vehicle exterior temperature. , The length of the occupant direction fixed time is set short, during the heating operation, the higher the blowing temperature, the larger the blowing air volume,
A vehicle air conditioner wherein the length of the occupant direction fixed time is set shorter as the vehicle outside temperature is higher. 9. The air conditioner for a vehicle according to claim 6, wherein the blowing state different from the first blowing state is the blowing state of the conditioned air blown into the vehicle interior from the blowing port. A vehicle air conditioner characterized in that the air conditioner is changed until the blowing state change time elapses. 10. The air conditioner for a vehicle according to claim 9, wherein a state of air-conditioned air blown into the vehicle interior from the air outlet is:
To change to be different from the first blowing state means to change at least one of the blowing direction, the blowing position, the blowing range, the blowing air volume or the blowing temperature to be different from the first blowing state. Characteristic vehicle air conditioner. 11. The air conditioner for a vehicle according to claim 6, wherein said air outlet is a one-side air outlet for blowing conditioned air toward one side air-conditioning area in a vehicle cabin. And the other air outlet for blowing out the conditioned air toward the other air conditioning area in the vehicle interior different from the one air conditioning area, wherein the air outlet state changing means is configured to perform the one-way air discharging from the one air outlet. One-side blowout state variable means capable of changing the blowout state of the conditioned air blown into the side air-conditioning area, and changing the blowout state of the conditioned air blown into the other side air-conditioning area from the other side air outlet. The air-conditioning control device is capable of changing the air-conditioning air blowing state in the one-side air-conditioning area and the air-conditioning air blowing state in the other-side air-conditioning area. As performed by standing, the one air conditioning system and controls the side blow condition varying means and said other side blow condition changing means.