JPH11151936A - Air conditioning device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arbitrarily control a louver fin of an intermediate/rear seat side FACE grille, without providing an exclusive use switch, by detecting a detection angle of an existing right/left direction position sensor and an operating condition of a louver motor. SOLUTION: During an auto stop stopping a louver fin 31 toward an occupant in an intermediate seat, when one time swing of the louver fin 31 by a finger of the occupant in the intermediate seat is detected by an air conditioning ECU, the louver fin 31 is transferred to a manual swing swinging it in a prescribed swing range with the occupant in the intermediate seat serving as the center. During an auto swing swinging the louver fin 31 in a prescribed swing range with the occupant in the intermediate seat serving as the center, when stopping of a swing of the louver fin 31 with a finger by the occupant in the intermediate seat is detected by the air conditioning ECU, the louver fin 31 is transferred to a manual stop stopping it in a position toward the occupant in the intermediate seat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner having a swing louver device capable of controlling the start and stop of a louver fin swing by an occupant operating the louver fin.

[0002]

2. Description of the Related Art Conventionally, in Japanese Patent Application Laid-Open No. Hei 9-52518, a plurality of louver fins for changing the blowing direction of conditioned air blown from a face outlet of an air conditioning unit are automatically swung by being driven by an actuator. A vehicle air conditioner (first conventional example) including such a swing louver device is known.

[0003] In Japanese Patent Application Laid-Open No. 7-237434, a swing louver device is operated by pressing an ON / OFF switch dedicated to the swing louver device to start or stop the operation of the louver fin. 2. Description of the Related Art A vehicle air conditioner equipped with a louver device (second conventional example) is known. Further, a swing louver device capable of performing advanced control such as changing a swing range according to a cooling heat load is provided with a potentiometer for detecting the positions of a plurality of louver fins.

[0004]

However, a 1-BOX car or the like having at least four front face face outlets, two middle face face outlets, and two rear face face outlets is provided. In the vehicle, to individually control the swing louver device of each face outlet,
To swing each swing louver device or to stop the swing, ON for each swing louver device,
An OFF switch is required, and there is a problem that cost and design are extremely difficult.

In the control as in the first conventional example, even if the louver fin is pointed at a place where the occupant wants to turn while controlling the direction of air-conditioning air blown out from the air outlet into the passenger compartment, the louver fin is immediately turned on. In this case, the louver fins move according to a predetermined control pattern, and there is a problem that the air-conditioning air blowing direction cannot be set to a passenger's favorite blowing direction. In the second conventional example, when the occupant wants to turn the louver fin in a certain direction, first, an O dedicated to the swing louver device is used.
N, it was necessary to turn off the OFF switch and then to turn the louver fin in a desired direction, which was difficult and inconvenient.

[0006]

An object of the present invention is to use an existing blow-out state detecting means without providing a dedicated switch.
It is an object of the present invention to provide an air conditioner for a vehicle that can control the start of the operation of the blow state changing means and the stop of the operation of the blow state change means. In addition, the occupant can easily understand the operation for changing the blowing state by the occupant, and fix the conditioned air to the blowing state such as the conditioned air blowing direction, the blowing air volume, or the blowing position which the occupant prefers with one simple operation. It is an object of the present invention to provide an air conditioner for a vehicle that can perform the operation.

[0007]

According to the first aspect of the present invention, when the position of the outlet state changing means is changed by continuing the operation of the actuator, the vehicle is moved from the air outlet of the air conditioning duct. The blowing direction of the conditioned air blown into the room is changed, and the position of the blowing state changing means detected by the blowing state detecting means continuously changes. In such a case, if the position of the blowing state variable means detected by the blowing state detecting means does not change, if the occupant operates the blowing state variable means and stops moving the blowing state variable means, the blowing state is changed. The operation of the actuator is stopped according to the determination by the control means. As a result, it is possible not only to stop the movement of the blowing state changing means in the reciprocating direction without providing a dedicated switch, but also to realize the intention of the occupant to stop the operation of the blowing state changing means, thereby reducing costs. It can be satisfied in terms of surface, design and operation.

According to the second aspect of the present invention, when the changing speed of the position of the blowing state variable means detected by the blowing state detecting means decreases below the set speed, the occupant operates the blowing state variable means. Then, the operation of the actuator is stopped when the blow state control means determines that the movement of the blow state variable means is stopped. Thereby, the same effect as the first aspect of the invention can be achieved.

According to the third aspect of the present invention, when the position of the blowing state changing means is not changed due to the stop of the operation of the actuator, the air conditioning blown into the vehicle compartment from the air outlet of the air conditioning duct. The blowing direction of the wind is directed in a fixed direction, and the position of the blowing state changing means detected by the blowing state detecting means does not change. In such a case, when the position of the blowing state variable means detected by the blowing state detecting means changes, if the occupant operates the blowing state variable means to move the position of the blowing state variable means, the blowing state is changed. The operation of the actuator is started based on the determination by the control means. As a result, it is possible not only to start the movement of the blowing state changing means in the reciprocating direction without providing a dedicated switch, but also to realize the intention of the occupant to stop the operation of the blowing state changing means, so that cost can be realized. It can be satisfied in terms of surface, design and operation.

According to the fourth aspect of the present invention, when the position of the blow state changing means detected by the blow state detecting means changes by one reciprocation, the occupant operates the blow state changing means to blow the air. The operation of the actuator is started when the blowing state control means determines that the position of the state changing means is moving. Thereby, the invention described in claim 3 can be realized with high accuracy, and the same effect can be achieved.
According to the fifth aspect of the present invention, when the position of the blow state changing means detected by the blow state detecting means changes within the set range in the reciprocating direction within the set time, the occupant can change the blow state changing means. Is operated to move the position of the blowing state changing means, and the blowing state control means determines that the operation of the actuator is started. Thereby, the invention described in claim 3 can be realized with high accuracy, and the same effect can be achieved.

According to the seventh aspect of the present invention, when the position of the blow state changing means is changed by continuing the operation of the actuator, the air conditioner blown into the vehicle compartment from the air outlet of the air conditioning duct. The blowing state such as the blowing direction, the amount of blowing air, or the blowing position is changed, and the position of the blowing state changing means detected by the blowing state detecting means continuously changes. In such a case, when the occupant directly operates the blowing state changing means in order to change the blowing state of the conditioned air, the occupant operation determining means determines that the occupant has operated the blowing state changing means. As described above, when it is determined that the occupant has operated the blowing state changing means, the operation of the actuator is stopped, whereby the conditioned air blowing state preferred by the occupant can be fixed. As described above, the occupant can fix the air-conditioning air blowing state preferred by the occupant with a single simple operation of only operating the blowing state changing means, so that the operation of changing the blowing state is very difficult for the occupant. It is easy to understand.

According to the invention described in claim 8, while the operation of the actuator is continued, when the speed of change of the position of the blow state variable means detected by the blow state detection means is different from the target change speed, It is determined that the occupant has directly operated the blowing state changing means. Thereby, an effect similar to that of the invention described in claim 7 can be achieved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Structure of First Embodiment] FIGS. 1 to 14 show a first embodiment of the present invention.
FIG. 2 is a diagram showing an overall configuration of a vehicle air conditioner, and FIG. 2 is a diagram showing a cabin of a vehicle equipped with the vehicle air conditioner.

In the vehicle air conditioner of the present embodiment, the first air conditioning zone for air conditioning mainly the occupants on the front seat side of the vehicle 100 (the occupants in the driver's seat and the occupant in the front passenger seat: the first occupant) has a temperature. The first air-conditioning unit 1 to be adjusted and an occupant mainly on the rear side of the vehicle 100 and on the intermediate seat side (occupant of the intermediate seat:
A second occupant and a rear seat occupant: a third occupant), a second air conditioning unit 2 for controlling the temperature of a second air conditioning zone for air conditioning, and air conditioning functional parts of the first and second air conditioning units 1 and 2. An air-conditioning control device (hereinafter, referred to as an air-conditioning ECU) 6 for controlling. In addition, the vehicle 100 of this embodiment is:
The 1-box car includes a front seat (front seat: hereinafter, abbreviated as front seat) 101, an intermediate seat (second seat: abbreviated as middle seat) 102, and a rear seat (third seat: abbreviated as rear seat) 103. .

The first air-conditioning unit 1 is disposed at the forefront in the cabin of the vehicle 100 and has a first air-conditioning duct 10 for guiding air into the cabin. At the most upstream side of the air of the first air conditioning duct 10, an inside air inlet 10a opened into the vehicle interior, an outside air inlet 10b communicating with the outside of the vehicle interior, and an opening between the inside air inlet 10a and the outside air inlet 10b. Inside / outside air switching door 1 for switching a state (so-called inside / outside air mode)
1 is provided. And this inside / outside air switching door 11
Is driven by a servomotor 11a as a driving means. Thus, the first air conditioning unit 1 can switch between an inside air circulation mode in which the air taken into the first air conditioning duct 10 is 100% inside air and an outside air introduction mode in which the outside air is 100%.

The second air conditioning unit 2 is arranged at the rearmost position in the cabin of the vehicle 100 and has a second air conditioning duct 20 for guiding air into the cabin. At the most upstream side of the air of the second air conditioning duct 20, an inside air inlet 20a opened into the vehicle interior is provided.
Unlike this, the air taken into the second air conditioning duct 20 is only the inside air, and the air is always in the inside air circulation mode. here,
When the first air-conditioning unit 1 is in the outside air introduction mode, as shown in FIG. 2, when air-conditioned air is blown out of the first air-conditioning duct 10, the air-conditioning air is blown out, for example, by the vehicle. The air in the vehicle interior is discharged from the discharge hole 20b opened by the rear package tray (not shown) located at the rearmost position in the vehicle and communicating with the outside of the vehicle.

The first and second air conditioning ducts 10, 20
The temperature of the air passing therethrough is adjusted inside the device, but since the internal configuration is almost the same, they will be described together. Inside air inlet 10 of first and second air conditioning ducts 10 and 20
The first and second blowers 12 and 22 which are air flow generating means for generating an air flow in each of the first and second air conditioning ducts 10 and 20 are disposed at the downstream side of the air flow passages a and 20a. .
These first and second blowers 12, 22 are driven by electric motors 12a, 22a as driving means, respectively.

The first and second air conditioning ducts 10, 20
Inside, on the air downstream side of the first and second blowers 12 and 22,
First and second evaporators (refrigerant evaporators) 13 and 23 as air cooling means for cooling the passing air are disposed so as to block the entire air passages. These first and second
The evaporators 13 and 23 are components of a refrigeration cycle (not shown) mounted on the vehicle 100.

In this refrigeration cycle, a compressor (refrigerant compressor) which receives the rotational power of an engine mounted on the vehicle 100 and converts the refrigerant into a high-temperature and high-pressure gas refrigerant, and condenses and liquefies the gas refrigerant discharged from the compressor. A condenser (refrigerant condenser), first and second expansion valves (decompression means) for decompressing and expanding the liquid refrigerant flowing from the condenser,
This is a known configuration including the above-described first and second evaporators 13 and 23 for evaporating and evaporating the refrigerant flowing from the expansion valve.

In the refrigerating cycle of the present embodiment, the first and second evaporators 13 and 23 are connected in parallel between the condenser and the expansion valve, and each of the first and second evaporators 13 and 23 is connected. On the upstream side of the refrigerant, first and second solenoid valves (not shown) for interrupting the flow of each refrigerant are provided, and the first and second solenoid valves are opened and closed depending on the open / close state of these first and second solenoid valves. It is determined whether or not the refrigerant is supplied to the evaporators 13 and 23. First and second evaporators 13, 2
The above-mentioned first and second expansion valves are connected between 3 and the first and second solenoid valves.

The first and second air conditioning ducts 10, 20
First and second temperature adjusting means for adjusting the temperature of the air blown into the vehicle interior are disposed downstream of the first and second evaporators 13 and 23 in the air. 1st, 2nd
The temperature control means includes first and second heater cores 14 and 24 as air heating means, an amount of air passing through the first and second heater cores 14 and 24, and an amount of air bypassing the first and second heater cores 14 and 24. First and second by adjusting the air flow ratio
First and second air mixes (A) serving as heating amount adjusting means for adjusting the heating amount of the air passing through the evaporators 13 and 23.
/ M) doors 15 and 25. The first and second heater cores 14 and 24 use the cooling water of the engine as a heat source, and can obtain a heating capacity according to the cooling water temperature.
Further, the first and second A / M doors 15, 25 are driven by servo motors 15a, 25a as driving means, respectively.

Next, on the most downstream side of the first and second air conditioning ducts 10 and 20, there is provided an air outlet for blowing out the air-conditioned air whose temperature has been adjusted by the above-mentioned air-conditioning function parts into the vehicle interior. . This outlet is connected to the first air conditioning unit 1 and the second air conditioning unit.
Since the formation position is different between the air conditioning unit 2 and the air conditioning unit 2, the description will be made in two parts.

First, the foremost instrument panel 104 in the passenger compartment is located at the most downstream side of the air in the first air conditioning duct 10.
Inside, a first air outlet (front air outlet) for blowing out the conditioned air toward different positions in the vehicle interior is provided.
More specifically, the air-conditioning air (mainly cold air) 4 is blown out toward the upper body (head and chest) of the occupant on the front seat side of the vehicle 100.
A front face side (FACE) outlet 16 (see FIG. 3) and a defroster (DEF) outlet 17 (for blowing out conditioned air (mainly hot air) toward the inner surface of the front window glass of the vehicle 100. 3) and two front seat-side feet (FOO) for blowing out conditioned air (mainly hot air) toward the lower body (foot portion) of the occupant on the front seat side of the vehicle 100.
T) The outlet 18 is an example of a first outlet.

The four front seat FACE outlets 16
Are the driver's seat side and the passenger side center FACE outlet opening at the center portion of the instrument panel 104 in the vehicle width direction, and the driver's seat side and the passenger side side FACE blowing located at the most end sides in the vehicle width direction. Consisting of an exit. Of these, four front seat FACE outlets 16 and two front seat Fs
The OOT outlet 18 is a first outlet opening / closing means.
The opening state (so-called outlet mode) is adjusted by the outlet switching door 19. The first outlet switching door 19 is driven by a servomotor 19a as a driving unit.

As a result, the first air conditioning unit 1
(FACE) mode in which only the front seat side FACE outlets 16 are opened, and two front seat FOOT outlets 1
8 opening only (FOOT) mode, 4 front FACE outlets 16 and 2 front FOO outlets
Bi-level (B / L) that opens both T outlets 18
An outlet mode such as a mode can be switched.

On the other hand, at the most downstream side of the air of the second air conditioning duct 20, as a second air outlet, the air-conditioned air (mainly the head and chest) is directed toward the upper body (head and chest) of the occupant in the middle and rear seats of the vehicle 100. FACE outlets 26 and 27 for blowing out the middle air and the rear seat (FACE) outlets for blowing out cold air, and air-conditioning wind toward the lower body (foot) of the occupant on the middle and rear seats of the vehicle 100. Four middle seat and rear seat foot (FOOT) outlets 28 for blowing out (mainly hot air) are provided.

Four middle seat and rear seat FACE outlets 2
6, 27 are, for example, the middle seat side corresponding to the middle seat 102 and the rear seat 103 of the vehicle 100, the middle seat side of the ceiling portion of the rear seat side,
The rear seats are provided on both sides in the vehicle width direction. Also, 4
The middle seat side and rear seat side FOOT outlets 28 are provided, for example, below the middle seat 102 of the vehicle 100 and open near the floor of the vehicle 100. Like the FACE outlets 26 and 27, they are provided on both sides in the vehicle width direction. Alternatively, it is provided below the middle seat 102.

The FACE outlet 2 for the middle and rear seats
6, 27 and the middle and rear FOOT outlets 28
The opening state (so-called outlet mode) is adjusted by the second outlet switching door 29 as the second outlet opening / closing means. The second outlet switching door 29 is driven by a servomotor 29a as a driving unit. As a result, the second air conditioning unit 2 has a face (FACE) mode in which only the four middle seat and rear seat FACE outlets 26 and 27 are opened, and four middle seat and rear seat FOOT outlets 28. Foot opening mode (FOOT),
And four middle and rear FACE outlets 26 and 27
And the four outlet modes such as the bi-level (B / L) mode in which both the middle seat and the rear seat FOOT outlets 28 are opened.

Next, a description will be given, with reference to FIGS. 1, 4 to 6, of the blowout state variable devices installed at the four FACE air outlets 26, 27 on the middle and rear seat sides. Here, FIG. 4 is a diagram showing the entire configuration of the blowing state changing device.

The blow state changing devices are provided in four middle seat and rear seat side face (FACE) grills 30, respectively. The air passages formed in the four middle seat and rear seat FACE grills 30 are used as the four middle seat and rear seat FACE outlets 26 and 27, respectively. Four FACE grills 3 on the middle and rear seats
Inside 0, a horizontal swing mechanism (see FIG. 5) and a vertical swing mechanism (see FIG. 6) are provided.

Each of the right-and-left swing mechanisms includes a louver fin 31 as a blowing direction changing means provided in a plurality of rows in the left-right direction in four middle- and rear-seat FACE grills 30.
The louver fin 31 is attached to the vehicle 100 around the fulcrum.
A link lever 32 that swings (swings) in a predetermined swing range (swing range, louver angle: for example, 0 ° to 120 °) in the front-rear direction and the left-right direction (horizontal direction) with respect to the front-rear direction; A louver motor 31a as an actuator for reciprocating the link lever 32 in the front-rear direction and the left-right direction via the plate 33 is configured. The plurality of louver fins 31 correspond to the blowing state changing means of the present invention, and the direction of air-conditioning air blown from the four middle seat and rear seat FACE outlets 26 and 27 is set in the front-rear direction. And change to left and right.

Each of the vertical swinging mechanisms includes a louver fin 34 as a blowing direction changing means which is provided in a plurality of rows in the vertical direction in the four FACE grilles 30 on the middle seat side and the rear seat side;
The louver fin 34 is attached to the vehicle 100 around the fulcrum.
A link lever 35 that swings (swings) in a predetermined swing range (swing range, louver angle: for example, 0 ° to 120 °) in the vertical direction with respect to the front-rear direction of the vehicle, and a link lever via an arm plate 36. Louver motor 34a as an actuator for reciprocating the cylinder 35 in the vertical direction
It is composed of The plurality of louver fins 34
Is equivalent to the blowing state changing means of the present invention, and changes the blowing direction of the conditioned air blown from the four middle- and rear-seat FACE outlets 26 and 27 in the vertical direction.

Next, the air conditioner ECU 6 will be described with reference to FIGS. The air conditioner ECU 6 corresponds to a blow state control means of the present invention, and has a CP inside.
A known microcomputer including a U, a ROM, a RAM, and the like is provided. The air conditioner ECU 6 receives a sensor signal from each sensor through an input circuit (not shown) to output
After the / D conversion, it is configured to be input to the microcomputer. And the air conditioner ECU 6
Is an ignition switch (not shown) of the vehicle 100
Alternatively, when an accessory switch (not shown) is turned on, power is supplied from a battery mounted on the vehicle 100, and arithmetic processing can be performed.

An input terminal of the air conditioner ECU 6 is provided with an air conditioning environment factor necessary for air conditioning control of the first air conditioning unit 1 and the second air conditioning unit 2 and affecting the air conditioning state of the first air conditioning zone and the second air conditioning zone. Various sensors to be detected are electrically connected. Specifically, an outside air temperature sensor 61 for detecting an air temperature outside the vehicle compartment (hereinafter, referred to as outside air temperature), a cooling water temperature sensor 62 for detecting a temperature of engine cooling water (hereinafter, referred to as cooling water temperature), Mainly first
Solar radiation sensor 6 for detecting the amount of solar radiation entering the air conditioning zone
3 and the air temperature in the first and second air conditioning zones (hereinafter referred to as first and second air conditioning zones).
First and second inside air temperature sensors 64 and 65 for detecting the second inside air temperature) are electrically connected.

Further, the first and second evaporators 13 and 2
First and second post-evaporation temperature sensors 6 for detecting the air temperature (hereinafter referred to as first and second post-evaporation temperatures) immediately after passing through
6, 67 and 4 FACE outlets on the middle and rear seats
Four horizontal position sensors 68 and four vertical position sensors 69 for detecting the blowing direction of the conditioned air blown from the air conditioners 6 and 27, and the air temperature in the first and second air conditioning zones to a desired temperature ( The first and second temperature setting devices 71 and 72 which are set to the first and second set temperatures are electrically connected.

The four left-right position sensors 68 correspond to the blowout state detecting means of the present invention, and
1 is a louver angle detecting means for detecting the louver angle (detection angle) of the louver fin 31 in the left-right direction by detecting the current position in the left-right direction.
This is a wind direction detecting means for detecting the left-right direction of the conditioned air blown out from the outlet 16 and is provided near the left-right swing mechanism. Specifically, as shown in FIG. 5, the four left-right position sensors 68 are movable contacts 68 that reciprocate in the left-right direction integrally with the link lever 32.
a, and a potentiometer including a resistance element 68b for changing the voltage division ratio by moving the movable contact 68a.

The four vertical position sensors 69 correspond to the blowing state detecting means of the present invention, and
4 is a louver angle detecting means for detecting the louver angle (detection angle) of the louver fin 34 in the vertical direction by detecting the current position of the louver fin 34 in the vertical direction. This is a wind direction detecting means for detecting the vertical direction of the conditioned air to be blown, and is provided in the vicinity of the vertical swing mechanism. In particular,
As shown in FIG. 6, the four vertical position sensors 69 are a movable contact 69a that reciprocates vertically with the link lever 35, and a resistance element 69b that changes the voltage division ratio by moving the movable contact 69a. And the like.

The first temperature setting device 71 is installed on the above-mentioned instrument panel 104. On the instrument panel 104, an air conditioner for instructing to automatically control the temperature of the first air conditioning zone is provided. AUTO
A button 73, an outlet switch (not shown) for switching the outlet mode, an inside / outside air switch (not shown) for switching the inside / outside air mode, an OFF switch for stopping the operation of the first air conditioning unit 1, and the like are provided. ing.

The second temperature setting device 72 corresponds to a temperature setting device, and is a controller (not shown) or a remote controller (not shown) provided on the rear seat side of the vehicle 100, for example, on a ceiling portion. The air conditioner AUTO is instructed to automatically control the temperature of the second air conditioning zone on the operation panel.
A button 74, an outlet switch (not shown) for switching the outlet mode, and an OFF switch (not shown) for stopping the operation of the second air conditioning unit 2 are provided.

On the other hand, the output terminal of the air conditioner ECU 6
The above-described servo motor 11a, electric motors 12a, 22
a, an electromagnetic clutch of a compressor (not shown), first and second electromagnetic valves of a refrigeration cycle, servo motors 15a, 19
a, 25a, 29a, four louver motors 31a, and four louver motors 34a are electrically connected.
That is, the air conditioner ECU 6 performs arithmetic processing based on the air conditioning information taken in from the input terminal described above, outputs a control signal from the output terminal so as to achieve a desired air conditioning state, and controls the air conditioning functional components. . As a result, the vehicle air conditioner automatically changes the temperature in the passenger compartment, switching between the inside and outside air modes, switching between the outlet modes, changing the blowing direction of the conditioned air, changing the swing range of the blowing direction of the conditioned air, and sending the air. Automatically controls the air volume.

[Air Conditioning Control Method of First Embodiment] Next, an air conditioning control method by the air conditioner ECU 6 of this embodiment will be briefly described with reference to FIGS. FIG. 7 is a flowchart showing an example of a control program of the air conditioner ECU 6.

First, initialization (reset) of data, flags, and the like is performed (step S1). Next, the first set temperature Tset (Fr) of the first air conditioning zone and the second set temperature Tset (Rr) of the second air conditioning zone are read as air conditioning information from the first and second temperature setting devices 71 and 72, respectively. (First and second temperature setting means: step S2).

From the sensors described above, the outside air temperature TAM and the first inside air temperature TR (F
r), the amount of solar radiation TS, the first post-evaporation temperature TE (Fr) and the cooling water temperature TW, and the second inside air temperature TR (Rr) and the second post-evaporation temperature TE required for the air conditioning in the second air conditioning zone.
(Rr) and temporarily store it in the RAM (step S3). Note that the outside air temperature TAM, the amount of solar radiation TS, and the cooling water temperature TW are also required for air conditioning in the second air conditioning zone.

Next, the current position of the louver fin 31 detected by the left-right position sensor 68 attached to the four middle- and rear-seat FACE grilles 30 and the vertical position sensor 69 detect the same. The current position of the louver fin 34 is read (blowing state detecting means: step S4).
Next, a first target outlet temperature TAO (Fr) of the conditioned air blown out from the outlet of the first air conditioning unit 1 is calculated based on the following equation (first target outlet temperature determining means: Step S5).

[0045]

## EQU1 ## TAO (Fr) = Kset (Fr) .Tset
(Fr) -KR (Fr) .TR (Fr) -KAM (F
r) TAM-KS (Fr) TS + C (Fr) where Kset (Fr), KR (Fr), KAM (F
r) and KS (Fr) are the first set temperatures Tset, respectively.
(Fr), first inside air temperature TR (Fr), outside air temperature TAM
And a correction gain for the solar radiation TS, and C (Fr) is a correction constant.

Next, the inside / outside air mode of the first air conditioning unit 1 is determined from the characteristic diagram of FIG. 8 based on the TAO (Fr) calculated in step S5 (step S6).
In FIG. 8, SWI is a target opening degree of the inside / outside air switching door 11, and in the present embodiment, the target opening degree SWI is a case where the inside air inlet 10a is fully opened and the outside air inlet 10b is fully closed.
= 0%, the inside air inlet 10a is fully closed, and the outside air inlet 1
The case where the valve 0b is fully opened is set as the target opening SWI = 100%.

Next, the outlet mode of the first air conditioning unit 1 is determined from the characteristic diagram of FIG. 9 based on the TAO (Fr) calculated in step S5 (step S7).
Next, the amount of air blown by the first blower 12 of the first air conditioning unit 1 is determined. Actually, the blower voltage (V) applied to the electric motor 12a is determined from the characteristic diagram of FIG. 10 based on the TAO (Fr) calculated in step S5 (step S8).

Next, the second target blow-off temperature TAO (Rr) of the conditioned air blown out from the outlet of the second air-conditioning unit 2 is calculated based on the following equation (2) (second target blow-off temperature). Determining means: Step S9).

[0049]

## EQU2 ## TAO (Rr) = Kset (Rr) .Tset
(Rr) -KR (Rr) .TR (Rr) -KAM (R
r) TAM-KS (Rr) TS + C (Rr) where Kset (Rr), KR (Rr), KAM (R
r) and KS (Rr) are the second set temperatures Tset, respectively.
(Rr), second inside air temperature TR (Rr), outside air temperature TAM
And a correction gain for the solar radiation TS, and C (Rr) is a correction constant.

Next, the outlet mode of the second air conditioning unit 2 is determined from the characteristic diagram of FIG. 11 based on the TAO (Rr) calculated in step S9 (step S1).
0). Next, the routine of FIG. 13 is started to perform swing louver control. Specifically, 4 of the second air conditioning unit 2
The control state of the blowout state variable devices of the middle and rear FACE grilles 30 of the middle and rear FACE grills 30 is determined (step S11). Next, the amount of air blown by the second blower 22 of the second air conditioning unit 2 is determined. In practice, the blower voltage (V) applied to the electric motor 22a is determined from the characteristic diagram of FIG. 12 based on the TAO (Rr) calculated in step S9 (step S12).

Next, based on TAO (Fr) and TAO (Rr) calculated in steps S5 and S9, each target opening θ (Fr) of the first and second A / M doors 15 and 25 is determined. , Θ (Rr) are calculated from the following equations (3) and (4) (step S13).

[0052]

[Equation 3] θ (Fr) = [｛TAO (Fr) −TE (F
r)｝ / {TW-TE (Fr)}] × 100%

[Equation 4] θ (Rr) = [｛TAO (Rr) −TE (R
r)｝ / {TW-TE (Rr)}] × 100%

Next, the above-mentioned steps S4 to S1
A control signal is output to the various air conditioning functional components so as to be in the air conditioning control state determined or calculated in 3 (step S14). Next, it is determined whether a predetermined control cycle time (τ) has elapsed (step S15). If the result of the determination is YES, the process returns to step S2, and if the result of the determination is NO, the control waits until the control cycle time (τ) has elapsed.

Next, swing louver control by the air conditioner ECU 6 will be described with reference to FIG. Here, FIG.
5 is a flowchart showing swing louver control by the air conditioner ECU 6. This flowchart is performed for each louver fin 31 of the blowout state variable device of the FACE grill 30 on the middle and rear seats. The louver fin 34
Is similar to the flowchart of FIG.

First, it is determined whether or not the auto flag F is set (step S21). If the result of this determination is NO, it is determined whether or not the louver motor 31a is operating (ON) (step S22). If the result of this determination is YES, a manual swing is performed. Specifically, the operation of the louver motor 31a is started (ON) so as to give the louver fin 31 a swinging motion within a predetermined swing range (for example, 120 ° reciprocation) (step S23).

If the result of the determination in step S22 is NO, a manual stop is executed. Specifically, the louver fins 3 are located at the positions where the occupants on the middle and rear seats are located.
1 with the louver motor 31a stopped (O
FF) (step S24). Next, AUT
It is determined whether or not the O button 74 has been pressed (step S
25). If the result of this determination is NO, the automatic flag F is turned down (step S26). Thereafter, the process exits the routine of FIG. Further, the determination result of step S25 is YE
In the case of S, the automatic flag F is set (step S2
7). Thereafter, the process exits the routine of FIG.

If the result of the determination in step S21 is YES
In the case of, the second inside air temperature TR (Rr) becomes the predetermined temperature α
It is determined whether the temperature is higher than (for example, 30 ° C.) (step S28). If this determination is NO,
It is determined whether or not the solar radiation amount TS entering the vehicle interior is a high solar radiation amount equal to or larger than a predetermined solar radiation amount β (for example, 500 W / m ² ) (step S29). If the result of this determination is NO, an automatic swing is executed. Specifically, the middle seat side,
The louver motor 31a is operated (ON) so as to give a swinging motion to the louver fin 31 within a predetermined swing range (for example, 120 ° reciprocation) around the position where the occupant on the rear seat side is located (step S30).

Next, within a set time (for example, 1 second),
It is determined whether the detection angle θ of the left / right direction position sensor 68 is equal to or smaller than a predetermined angle A (for example, 7 °) (step S3).
1). If the result of this determination is NO, the routine exits from the routine of FIG. Also, the determination result of step S31 is YES
In the case of, the process proceeds to step S24. Step S
If the determination result in step 28 is YES, or step S2
If the result of the determination in Step 9 is YES, an automatic stop is executed. More specifically, the louver motor 31a is placed in a state where the louver fins 31 are directed to the positions where the occupants of the middle and rear seats are located.
Is stopped (OFF) (step S32).

Next, within a set time (for example, 3 seconds),
And the detection angle θ of the left / right direction position sensor 68 is a predetermined angle B
(For example, 15 °) or more (step S33). If the result of this determination is NO, the routine exits from the routine of FIG. If the determination result of step S33 is YES, the process proceeds to step S23.

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

For example, when the outlet mode of the first air conditioning unit 1 is the FACE mode (B / L mode), the air is sucked into the first air conditioning duct 10 from the inside air inlet 10 a by the action of the first blower 12. After the inside air is cooled to, for example, about 4 ° C. by the first evaporator 13, the amount of air passing through the first heater core 14 is adjusted according to the opening degree of the first A / M door 15, and the occupant on the front seat side The conditioned air has an optimum temperature according to the set first set temperature Tset (Fr). After that, the conditioned air (cool air) is supplied to the four front seat FACEs opened at the most downstream end of the first air conditioning duct 10.
The air is blown out from the air outlet 16 into the first air-conditioning zone on the front seat side in the passenger compartment of the vehicle 100. In particular, the cool air is blown toward the upper body (head and chest) of the occupant on the front seat side in the first air conditioning zone.

On the other hand, when the outlet mode of the second air conditioning unit 2 is the FACE mode (B / L mode may be used), the second blower 22 is operated in the same manner as the first air conditioning unit 1.
Of the second air conditioning duct 2 from the inside air inlet 20a by the action of
After the inside air sucked into the inside 0 is cooled to, for example, about 4 ° C. by the second evaporator 23, the amount of air passing through the second heater core 24 is adjusted according to the opening degree of the second A / M door 25, and The conditioned air has an optimum temperature according to the second set temperature Tset (Rr) set by the occupants on the seat side and the rear seat side. Thereafter, the conditioned air (cool air) is supplied to the second air conditioning duct 20.
FACE open at the most downstream end of the middle and rear seats FACE
The air is blown out from the air outlets 26 and 27 into the second air conditioning zone on the rear seat side of the vehicle 100. In particular, the cool air is the upper body (head and chest) of the occupants in the middle and rear seats in the second air conditioning zone.
It is blown out toward.

Here, the louver control of the louver fins 31 of the blow-out state changing device of the FACE grill 30 on the middle and rear seats will be described with reference to the operation explanatory view of FIG. First, in the auto mode, when the second inside air temperature TR (Rr) is higher than a predetermined temperature α (for example, 30 ° C.) or the solar radiation amount TS
Is higher than a predetermined amount of solar radiation β (for example, 500 W / m ² ), the louver fin 31 is stopped in a state where the louver fin 31 is directed to the position where the occupant on the middle seat side and the rear seat side is present. Under the conditions, a predetermined swing range (for example, 30
Is controlled to swing the louver fin 31 in (°). At this time, when the swing of the louver fin 31 is stopped in the former state, the louver fin 31 is automatically stopped.
The angle when swinging in °) is defined as auto swing.

Now, when the louver fin 31 is in the automatic stop mode, the louver motor 31a does not normally drive the louver fin 31, so that the left-right position sensor 68
Does not change. However, here the middle seat,
The rear occupant wants the louver fin 31 to swing, and moves any louver fin 31 left and right with a finger.
It is assumed that the swing operation has been performed once. The air conditioner ECU 6
Sets the detection angle θ of the left / right direction position sensor 68 to 5 per second.
It is assumed that it can be detected once.

Specifically, for example, the occupant on the middle seat side
02, right side middle seat FACE
Assuming that the louver fin 31 of the outlet 26 is stopped at a right angle of 50 ° toward the occupant on the middle seat side, the air conditioner ECU 6 sets the louver fin 31 at the right angle of 50 ° before the occupant on the middle seat side swings once with a finger. I remember that it was stopped. The middle occupant takes, for example, 0.4 seconds and turns 30
° Move the louver fin 31 and take 0.6 seconds
Assuming that the 5 ° louver fin 31 is manually operated, the air conditioner ECU 6 obtains 50 °, 65 °, 8 ° from the left / right position sensor 68 even though the louver motor 31a is stopped.
The detection angles θ of 0 °, 65 °, 50 °, and 35 ° are detected.

The air conditioner ECU 6 detects when a change of the detection angle θ of the left / right direction position sensor 68 by a predetermined angle A (for example, 15 °) or more has occurred within a preset time (for example, 3 seconds). Assuming that it was a judgment value,
By detecting the change, it is determined that the occupant on the middle seat side wants to swing the louver fin 31 (swing operation has been performed). As a result, the louver fin 31 starts a manual swing in the same swing range (for example, 30 °) as in the automatic swing. The same applies to the vertical swing of the louver fin 34. The same applies to a manual stop.

Next, when the louver fin 31 is in the auto-swing mode, the louver fin 31 swings 120 °, for example, and makes a single swing in 12 seconds because the swing speed of the louver fin 31 is substantially constant. In this case, the air conditioner ECU 6 detects a change twice each time the position of the louver fin 31 is detected once.
One second should detect a 10 ° change. Since the total louver angle is calculated, it is considered that the louver fin 31 has changed by 10 ° even if the same position is obtained after one second at the swing end of the louver fin 31.

Specifically, for example, the occupant on the middle seat side
02, right side middle seat FACE
When it is desired to stop the louver fin 31 swinging at the outlet 26 and press the louver fin 31 with a finger, that is, when the swing is stopped with a finger, the louver fin 31 is moved in spite of the movement of the louver motor 31a. , The detection angle θ of the left / right direction position sensor 68 does not change. At this time, when the change in the detection angle θ within a preset time (for example, one second) is equal to or less than a predetermined angle B (for example, 7 °), the air-conditioner ECU 6 determines that the occupant on the middle seat side has the louver fin 31.
Is determined to be stopped (swing stop operation is performed).
Thereby, the swing of the louver fin 31 is stopped.
The same applies to the vertical swing of the louver fin 34. The same applies to a manual swing.

When the air conditioner ECU 6 determines that the occupants on the middle and rear seats have stopped the swing of the louver fin 31 with their fingers during the manual swing as shown in the operation explanatory diagram of FIG. Shifts to manual stop. When the air conditioner ECU 6 determines that the occupants on the middle seat side and the rear seat side have swung the louver fin 31 once with a finger during manual stop, as shown in the operation explanatory diagram of FIG. Move to swing.

[Effects of the First Embodiment] As described above, in the blowing state variable device of the present embodiment, the operating state (ON / O) of the louver motors 31a and 34a is controlled by the air conditioner ECU 6.
FF state), the detection angle of the left / right position sensor 68 and the detection angle of the vertical position sensor 69 are detected, so that the louver fins 31 and 34 of each blowout state changing device shift from automatic stop to manual swing, and each blowout state variable. Transition of the louver fins 31 and 34 of the device from auto swing to manual stop, transition of the louver fins 31 and 34 of each blowout state variable device from manual swing to manual stop, and manual stop of the louver fins 31 and 34 of each blow state variable device The transition from to the manual swing can be performed arbitrarily.

Therefore, the blow-out state variable device of this embodiment uses the existing left-right position sensor 68 and up-down position sensor 69 for controlling the louver fins 31 and 34 at a high level. , OFF
Since the control of the louver fins 31 and 34 can be performed without providing a switch, the number of parts is reduced, so that the product cost can be reduced and the design and operation can be made very satisfactory. In addition, the variable air outlet state device is connected to the FACE air outlets 26 and 27 on the middle and rear seat sides.
Not only that, it is installed at the front seat side FACE outlet 16, etc.
The above-mentioned effect is further improved as the number of attachment points of the blowout state variable device increases.

[Configuration of Second Embodiment] FIGS. 15 and 2
0 shows a second embodiment of the present invention, FIG. 15 shows an instrument panel of a vehicle, and FIG. 16 shows an air conditioner operation panel.

In this embodiment, the driver's seat side (driver side: hereinafter referred to as Dr side) and the passenger seat side (passenger side: hereinafter referred to as Pa side) which are opened at the center of the instrument panel 104 in the vehicle width direction. FACE outlet 16
a, 16b, and D arranged at both ends in the vehicle width direction.
It comprises r-side and Pa-side side FACE outlets 16a, 16b. And the blowing state variable device has four Dr sides,
It is provided in each of the Pa-side FACE grills 30a and 30b.

In the four Dr-side and Pa-side FACE grills 30a and 30b, a left-right swing mechanism (see FIG. 5) including a louver fin 31 and a louver motor 31a, and a louver fin 34 and a louver motor 34a are provided. , A vertical swing mechanism (see FIG. 6). The first air-conditioning unit 1 of the present embodiment can perform temperature control of the Dr-side air-conditioning zone on one side of the vehicle compartment and the Pa-side air-conditioning zone on the other side of the vehicle compartment independently of each other. A possible air conditioning unit.

The air conditioner operation panel 70 of this embodiment has first and second temperature setting devices 71 and 72, an AUTO switch 73a for instructing automatic control, and an OF switch for instructing control stop.
F switch 74a, blower switch 75 for setting the air flow level of first and second blowers 12, 22; dual switch 76 for independently controlling the temperature on the Dr side and Pa side; MODE switch 77 for switching the outlet mode; A / C switch 78 for instructing operation and stop of the cycle, R / F switch 79 for switching the suction port mode,
FrDEF switch 80 for preventing front window fogging, Rr for preventing rear window fogging
A DEF switch 81, a louver operation panel 82 for operating the blowing state variable device, and the like are provided.
These various switches may be installed in a remote controller that performs remote control.

Of the above, the louver operation panel 82 has an operation mode changeover switch 83 for the blowout state variable device, and five LCDs that light up in accordance with the changed operation mode.
Both the Dr-side push button 84 for operating only the Dr-side blowing state variable device, the Pa-side push button 85 for operating only the Pa-side blowing state variable device, and both the Dr-side and Pa-side blowing state variable device And a MATCH push button 86 for activating the button.

The operation mode changeover switch 83 is turned to stop the operation of the blowout state variable device.
"TOP", "AUTO" for automatically controlling the operation of the blowout state variable device (auto louver control), "Rr" for increasing the air distribution to the rear seat side air conditioning zone, "RL for operating only the louver left / right swing mechanism" / SWING ”,“ UD / SWING ”that operates only the louver vertical swing mechanism
And the like. here,
87 is each Dr side, Pa side center FACE outlet 16a,
An operation lever for manually operating a shutter mechanism (not shown) for opening and closing 16b, and a knob 88 for the occupant to manually change the direction of the louver fins 31, 34 by manual operation.

[Air Conditioning Control Method of Second Embodiment] Next, an air conditioning control method by the air conditioner ECU 6 of the present embodiment will be described with reference to FIGS. Here, FIG.
5 is a flowchart showing an example of a control program of the air conditioner ECU 6.

First, initialization (reset) of data, flags, and the like is performed (step S31). Next, the data is read. That is, a switch signal from each switch and a sensor signal from each sensor are input (step S32).
Next, the stored data as described above and the following equation (5):
Based on the equation of Equation 6, the target outlet temperature TAO (D
r) and the target outlet temperature TAO (Pa) on the Pa side are calculated (step S33).

## EQU5 ## 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

[Formula 6] 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 of the Dr-side air conditioning zone, P
Indicates the set temperature of the a-side air conditioning zone, TR, TAM, TS
Represents the inside air temperature, the outside air temperature, and the amount of solar radiation into the vehicle interior, respectively. Kset, KR, KAM, KS, Kd (Dr) and Kd (Pa) are temperature setting gain, inside air temperature gain, outside air temperature gain, solar radiation gain, Dr side, P
Indicates the temperature difference correction gain of the a-side air conditioning zone. In addition, 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 zone and the Pa-side air conditioning zone, respectively, and CD (D
r) and CD (Pa) are constants according to the degree of influence, and C is a correction constant. Here, Ka (Dr) and Ka (P
Values such as a), CD (Dr), and CD (Pa) change with various parameters such as the shape and size of the vehicle, the blowing direction of the first air conditioning unit 1, and the like.

Next, the value of Dr obtained in step S33 is determined.
The first and second blowers 1 based on the target outlet temperature TAO (Dr) on the side and the target outlet temperature TAO (Pa) on the Pa side.
The blower control voltage VA to be applied to 2, 22 is calculated (step S34). Specifically, the blower control voltage V
A is a blower control voltage VA (Dr), VA adapted to the target outlet temperature TAO (Dr), TAO (Pa), respectively.
(Pa) is obtained based on the characteristic diagram of FIG. 18 and obtained by averaging the blower control voltages VA (Dr) and VA (Pa). Next, the target blowing temperature TAO (Dr) on the Dr side obtained in the above step S33.
19 and the target outlet temperature TAO (Pa) on the Pa side and FIG.
The respective outlet modes of the Dr-side air conditioning zone and the Pa-side air conditioning zone are determined based on the outlet mode characteristics with respect to the target outlet temperature shown in the characteristic diagram (step S35). Specifically, in the determination of the outlet mode, the target outlet temperatures TAO (Dr) and TAO (Pa) are changed from a low temperature to a high temperature in the FACE mode, the B / L mode,
The FOOT mode and the F / D mode are determined.

Next, the opening degree SW (D
r) (%) and the opening SW (Pa) of the A / M door on the Pa side
(%) Is calculated (step S36). The calculation of the opening degree SW (Dr) and the opening degree SW (Pa) is as follows.
The target outlet temperature TAO (Dr) on the Dr side and the target outlet temperature TAO (Pa) on the Pa side, the post-evaporation temperature (TE) detected by the first and second post-evaporation temperature sensors 66 and 67, and the cooling water temperature Cooling water temperature (TW) detected by sensor 62
And the following equation (7) and equation (8).

## EQU7 ## SW (Dr) = {TAO (Dr) -TE} × 1
00 / (TW-TE)

## EQU8 ## SW (Pa) = {TAO (Pa) -TE} × 1
00 / (TW-TE)

Next, the target swing range (the target swing range) of the louver fins 31 and 34 of each FACE grill is determined based on the solar radiation intensity, the solar radiation direction, the temperature deviation between the inside air temperature and the set temperature, and the air conditioning heat load such as the outside air temperature. ) (Target swing range determining means: step S37). Next, the target swing speed (target swing speed) of the louver fins 31 and 34 of each FACE grill is determined based on the solar radiation intensity, the solar radiation direction, the temperature deviation between the inside air temperature and the set temperature, and the air conditioning heat load such as the outside air temperature. (Target swing speed determining means: step S38). Next, the routine of FIG. 20 is started to control the wind direction of each FACE grill (blowing direction control means: step S3).
9).

Next, an output signal is sent to the first and second blowers 12 and 22 so that the blower control voltage VA is determined. In addition, the power supply of the servo motors 19a and 29a is controlled so as to be in the determined outlet mode. Further, the power supply to the servo motors 15a and 25a is controlled so that the determined opening degree SW (Dr) and the opening degree SW (Pa) are obtained. Then, control signals are sent to the louver motors 31a and 34a so as to achieve the determined target swing range and target swing speed (blowing state control means: step S40). next,
After a predetermined control cycle time (τ) has elapsed in step S41, the process returns to step S32.

Next, the swing louver wind direction control by the air conditioner ECU 6 will be described with reference to FIG. Here, FIG. 20 is a flowchart showing the swing louver wind direction control by the air conditioner ECU 6.

First, when the routine shown in FIG. 20 is started, the operation position of the operation mode changeover switch 83 for issuing a control command to the blowing state changing device is set to the "AUTO" position or the "U" position.
It is determined whether or not the vehicle has been stopped at the "-D / SWING" position for, for example, one second or more (step S51). If this determination is NO, the flow proceeds to step S53.

If the result of the determination in step S51 is YES
In the case of, the up / down swing possible flag is set to 1 and the up / down wind direction control is permitted (step S52). Specifically, the louver fin 34 is swung up and down to
A signal is sent to the louver motor 34a so as to change the vertical wind direction (blow-out direction) of the conditioned air blown into the vehicle interior from the side center FACE outlet 16a. Next, it is determined whether or not the up / down swing possible flag is 1 (step S).
53). If the determination result in step S53 is NO, the vertical wind direction control is prohibited. Specifically, Dr
The operation of the louver motor 34a is stopped so as to stop the movement of the louver fin 34 of the side center FACE outlet 16a (step S54). Thereafter, the process exits the routine of FIG.

In addition, the decision result in the step S53 is YES.
In the case of, the louver fin 34 is determined from the current position of the louver fin 34 detected by the vertical position sensor (potentiometer) 69 and the previous position of the louver fin 34 in the vertical direction of the conditioned air.
Of the position of the louver fin 34, that is, the speed of change of the position of the louver fin 34 (blowing state detecting means: step S5)
5). Next, it is determined whether or not the occupant has performed a vertical wind direction change operation (occupant operation determining means: step S
56). Specifically, when the wind direction of the conditioned air is swinging within a predetermined swing range, the amount of change in the detection value of the vertical position sensor 69 is too small or too large, considering the operating speed of the louver fin 34a. At this time, it is determined that the occupant has performed a vertical wind direction changing operation. That is, when the change speed of the position of the louver fin 34 is different from the target change speed (the target swing speed determined in S38 of the flowchart of FIG. 17) by a predetermined value or more, it is determined that the occupant has performed the vertical wind direction changing operation. .

If the decision result in the step S56 is YES, the vertical swing possible flag is set to 0, and the vertical wind direction control is prohibited (step S57). Thereafter, the process proceeds to step S54. If the result of the determination in step S56 is NO, automatic louver control or vertical louver control for automatically controlling the movement of the louver fins 34 is performed (step S58). Thereafter, the process exits the routine of FIG.

[Effects of the Second Embodiment] As described above, in the present embodiment, during the swing operation of the louver fins 31, 34, the occupant directly operates the louver fins 31, 34 in order to change the blowing direction of the conditioned air. Then, it is determined that the occupant has performed the wind direction changing operation. As described above, when the occupant determines that the wind direction changing operation has been performed, the operation of the louver motors 31a, 34a is stopped, so that the louver fins 31, 34 are set to the conditioned air blowing direction desired by the occupant.
Can be fixed with the. As mentioned above,
The louver fins 31 and 34 can be fixed in a state in which the louver fins 31 and 34 are oriented so that the occupants can operate the louver fins 31 and 34 in a single simple operation only by directly operating the louver fins 31 and 34. This allows the occupant to understand the operation of changing (wind direction changing operation) very easily.

In the present embodiment, the Dr-side center FA
The vertical direction of the louver fins 34 of the CE outlet 16a has been described as an example, but the louver fins 34 of the Dr side FACE outlet 16a, the louver fins 34 of the Pa side center FACE outlet 16b and the Pa side FA
The same effect can be achieved by controlling the wind direction of the louver fins 34 of the CE outlet 16b in the vertical direction in the same manner. In addition, Dr side center FACE outlet 1
6a, louver fin 31 at Dr side FACE outlet 16a, louver fin 31 at Pa side center FACE outlet 16b, and Pa side FAC
A similar effect can be achieved by similarly controlling the wind direction control of the louver fin 31 in the E outlet 16b in the left-right direction.

[Third Embodiment] FIG. 21 shows a third embodiment of the present invention and is a diagram showing an air conditioner operation panel.

In this embodiment, a stepping motor is used as an actuator (louver motor), and
Switches 89a, 89b, 90a, 90b are provided around the FACE grills 30a, 30b on the side and the Pa side, and the swing switches 89a, 89b, 90a, 9 are provided.
0b A signal is sent to the stepping motor in accordance with an upward instruction or a downward instruction and a left or right instruction, and the Dr side, the Pa side center, and the side FACE are vertically moved.
If the direction of the conditioned air blown from the outlets 16a and 16b is changed, the swing switch 89
The determination is made based on whether a, 89b, 90a, and 90b have been input.

[Fourth Embodiment] FIG. 22 shows a fourth embodiment of the present invention and is a diagram showing an air conditioner operation panel.

In this embodiment, louver operation panels 82 are provided on the Dr side and the Pa side, respectively. And Dr
Side, Pa side louver operation panel 82, Dr side, Pa side
Side center FACE outlets 16a, 16b, and the variable side blowout device and the Dr side, Pa side FACE outlets 16a, 16b.
A center louver switch 91 and a side louver switch 92 are provided so as to be able to independently control the blowing state variable device 6b.

[Fifth Embodiment] FIGS. 23 and 24 show a fifth embodiment of the present invention, and FIG. 23 is a view showing a blowing state changing device.

The blowing condition changing device of this embodiment comprises a plurality of louvers 201, a louver motor 202, a link plate 2
03 and a link lever 204.
The louver 201 is a FA that forms the FACE outlet 205.
Rotating shaft 207 rotatably supported by CE grill 206
And a pin 208 protruding upward in the figure at the upper end opposite to the rotating shaft 207. The louver motor 202 has a gear 209 fixed to the outer periphery of the distal end of an output shaft (not shown). The link plate 203 is disposed above the FACE grill 206, and has a rack 210 at one end thereof that meshes with the gear 209 of the louver motor 202.
It is slidably provided before and after the grill 206.
The link plate 203 has a plurality of louvers (louvers 20).
(Same as the number 1).
The link levers 204 transmit the movement of the link plate 203 to the louver 201, and are provided in the same number as the louvers 201.
1 and a guide groove 213 into which the pin 208 provided in the louver 201 is fitted.

In this embodiment, when the output shaft of the louver motor 202 rotates and the link plate 203 moves forward on the FACE grill 206, as shown in FIG. The louvers 201 are driven to positions where the louvers 201 face the occupant. Thus, the center FACE grill 206 and the side FAC
The conditioned air is intensively blown out from the E grill 206 toward the occupant (central mode). On the other hand, when the output shaft of the louver motor 202 rotates in the reverse direction and the link plate 203 moves backward on the FACE grill 206, as shown in FIG.
Is driven so that the direction of the extends outward. This allows
Center FACE Grill 206 and Side FACE Grill 2
The air-conditioning air blown out from 06 is diffused (diffusion mode). According to this blowing state changing device, the conditioned air can be intensively directed to the occupant by selecting the concentrated mode. In addition, if the diffusion mode is selected, the air-conditioned air can be widely applied to the air-conditioning zone, and the amount of the air-conditioned air distributed to the occupants can be reduced.

[Sixth Embodiment] FIG. 25 shows a sixth embodiment of the present invention, and is a view showing a blowing state changing device. The blowout state changing device of the present embodiment includes a case 221.
And a drum 222 rotatably mounted on the case 221 and a louver 223 mounted on the drum 222. This blowout state variable device can change the blowout direction of the conditioned air by rotating the drum 222 with respect to the case 221 to change the direction of the louver 223 integrally with the drum 222.

[Seventh Embodiment] FIGS. 26 to 30 show a seventh embodiment of the present invention.
FIG. 7 (a) is a view showing a blowing state changing device. The blowing state variable device according to the present embodiment includes a louver body 301 provided in an elongated cylindrical state, and a louver motor 302 for driving the louver body 301 to rotate. As shown in FIG. 27B, the louver main body 301 has an air passage 301 having a circular arc shape having a constant width at a position eccentric from the rotation center.
a is formed. As shown in FIG. 28, for example, this blowing state variable device can be used by being attached to an air outlet 304 (see FIG. 27A) of a vehicle 303 such as a 1BOX car.

The louver body 301 includes a louver motor 302.
, The blowout direction of the conditioned air blown out from the air blowout port 304 can be selected in an arbitrary vertical direction. For example, at the position shown in FIG. 29A, conditioned air can be blown mainly toward the upper body of the occupant.
At the position shown in FIG. 29 (b), the conditioned air can be blown mainly toward the lower body of the occupant. And FIG.
At the position shown in FIG. 9C, the conditioned air can be blown toward the ceiling of the vehicle 303. Further, FIG.
In the position shown in (d), the air outlet 304 can be closed.

When the louver main body 301 is swung, as shown in FIGS. 30 (a) to 30 (c), the air outlet 304 depends on the swing width of the louver main body 301.
More conditioned air can be blown out in a predetermined swing range. Therefore, also in this embodiment,
When the occupant directly operates the louver main body 301, the operation of the louver motor 302 is started or the louver motor 3 is operated.
02 can be stopped. Thereby, the blowing direction of the conditioned air can be fixed to the blowing direction desired by the occupant.

[Eighth Embodiment] FIGS. 31 to 34 show an eighth embodiment of the present invention, and FIG. 31 is a view showing a blowing state changing device. The blowout state variable device of the present embodiment is capable of changing the blowout area of the conditioned air in the vehicle width direction, and includes a rotary valve 309 rotatably attached to a case 308 forming a FACE outlet 307. Air-conditioned air is supplied to the case 308 from two air ducts 310 connected to the back surface. A lattice-like FACE grill 311 is attached to the front surface of case 308. The rotation position of the rotation valve 309 can be adjusted by an adjustment dial 312 attached to both ends and a valve motor (not shown).
(A) to FIG. 32 (c) and FIG. 33 (a) to FIG.
As shown in (c), by changing the opening state of the FACE outlet 307 according to the rotational position of the rotary valve 309, the blowout area of the conditioned air can be changed in the vehicle width direction.

Therefore, also in the present embodiment, the operation of the valve motor can be started or the operation of the valve motor can be stopped by the occupant directly operating the adjustment dial 312 of the rotary valve 309. As a result, the blowout area of the conditioned air can be fixed to the blowout area desired by the occupant. Also, FIGS. 34 (a) to 34
As shown in (e), various blowing states can be obtained by changing the shape of the rotary valve 309. Note that this rotary valve 309 can be used as the louver main body 301 of the seventh embodiment.

[Other Embodiments] In this embodiment, as the blowing state changing means for changing the blowing state of the conditioned air blown from the outlet, the blowing for changing the blowing direction of the conditioned air or the air distribution amount (blowing air amount). The example in which the direction changing means or the blowing air amount changing means is used has been described. However, as the blowing state changing means, a blowing position changing means for changing the blowing position (blowing height, blowing width) of the conditioned air may be used.

Further, when a stepping motor is used as the louver drive means, and a pulse is sent to the stepping motor by an occupant operating a switch to change the direction of the louver, the position of the louver cannot be detected directly. Since the louver movement amount can be calculated by counting the number of pulses, the louver movement amount can be used as blowout state detection means instead of a potentiometer. In this case, it is desirable that the occupant cannot operate the louver except for the switch.

In the present embodiment, the common solar radiation sensor 63 is used for controlling the air conditioning of the first air conditioning unit 1 and the second air conditioning unit 2, but each of the first air conditioning zone and the second air conditioning zone is used. A solar radiation sensor may be provided, and the air conditioning of each of the first air conditioning unit 1 and the second air conditioning unit 2 may be controlled based on the amount of solar radiation detected by these solar radiation sensors.

In this embodiment, an example in which the present invention is applied to a vehicle air conditioner mounted on a vehicle 100 such as a 1-box car has been described. However, the present invention is mounted on a large vehicle such as a bus vehicle or a railway vehicle. It may be used for a vehicle air conditioner. In the present embodiment, the automatic louver control is performed so that the swing range of the louver fins 31 and 34 becomes a fixed swing range. However, the smaller the cooling heat load in the air conditioning zone is,
Centering on the target position (the center position of the auto swing)
The swing range (swing range) of the louver fins 31 and 34 may be set wide.

In the present embodiment, four middle seats and rear seats F
The ACE grill 30 is fixed to both sides of the ceiling portion of the vehicle 100 in the width direction of the vehicle at the middle seat side and the rear seat side. However, each grill may be attached to the storage member while being supported rotatably in the left-right direction. Alternatively, each grill may be attached to the storage member while being supported so as to be vertically rotatable. In this case, the grill body may be swung as the blowing state changing means. In the present embodiment, the louver fin 31 swings in a single character in the left-right direction and the louver fin 34 swings in a single character in the vertical direction.
Either one may be used. Also, as a blowing state variable means,
A louver fin that swings in the shape of an eight, a ∞ or a X may be provided.

In this embodiment, the occupant on the middle seat side is
When the user wants to swing the louver fin 31 of the FACE air outlet 26 on the right side of the middle seat on the right side (one side) and wants to stop the swing, the user touches the louver fin 31 to perform a swing operation or stop. As a result, the swinging state of only the louver fin 31 of the FACE air outlet 26 on the right side of the middle seat is changed. However, when the louver fin 31 of the middle FACE air outlet 26 on the one side is swing-operated or stopped, not only one side but also the louver fin 31 of the FACE air outlet 26 on the other side (left side) swings or stops. May be linked to the swinging state of the louver fin 31 on one side. The rear seat FACE outlet 27
In this case, the louver fins 31 on the left and right sides may be interlocked in the same manner as described above, and the same applies to the case where a variable air outlet state device is provided in the front seat FACE air outlet 16. The same applies to the louver fins 34. Further, the same applies to a case where there are three or more air outlets that can blow out the conditioned air toward the occupant on the front seat side, the middle seat side, or the rear seat side.

[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 schematic diagram showing a vehicle cabin of a vehicle equipped with a vehicle air conditioner (first embodiment).

FIG. 3 is a front view showing an instrument panel of the vehicle (first embodiment).

FIG. 4 is a schematic diagram showing the entire configuration of the blowout state changing device (first embodiment).

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

FIG. 6 is a schematic diagram showing a configuration of a 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 illustrating a relationship between TAO (Fr) and an inside / outside air mode (first embodiment).

FIG. 9 is a characteristic diagram illustrating a relationship between TAO (Fr) and an outlet mode (first embodiment).

FIG. 10 is a characteristic diagram illustrating a relationship between TAO (Fr) and a blower voltage (first embodiment).

FIG. 11 is a characteristic diagram illustrating a relationship between TAO (Rr) and an outlet mode (first embodiment).

FIG. 12 is a characteristic diagram illustrating a relationship between TAO (Rr) and a blower voltage (first embodiment).

FIG. 13 is a flowchart illustrating swing louver control (first embodiment).

FIG. 14 is an explanatory view of the operation of the blowing state changing device (first example).
Embodiment).

FIG. 15 is a front view showing an instrument panel of a vehicle (second embodiment).

FIG. 16 is a front view showing an air conditioner operation panel (second embodiment).

FIG. 17 is a flowchart illustrating an example of a control program of the air conditioner ECU (second embodiment).

FIG. 18 is a characteristic diagram showing a blower control voltage characteristic with respect to a target blowout temperature (second embodiment).

FIG. 19 is a characteristic diagram showing an outlet mode characteristic with respect to a target outlet temperature (second embodiment).

FIG. 20 is a flowchart illustrating swing louver wind direction control by an air conditioner ECU (second embodiment).

FIG. 21 is a front view showing an air conditioner operation panel (third embodiment).

FIG. 22 is a front view showing an air conditioner operation panel (fourth embodiment).

FIG. 23 is a perspective view showing a blowing state changing device (fifth embodiment).

FIGS. 24 (a) and (b) are explanatory views of the operation of the blowing state changing device (fifth embodiment).

FIG. 25 is a cross-sectional view showing a blowing state changing device (sixth embodiment).

FIG. 26 is a perspective view showing a blowing state changing device (seventh embodiment).

FIG. 27A is a cross-sectional view illustrating a blowing state variable device, and FIG. 27B is a cross-sectional view illustrating a louver main body (seventh embodiment).

FIG. 28 is a schematic diagram of a vehicle showing a mounting position of a blowing condition changing device (seventh embodiment).

29 (a) to (d) are explanatory views of the operation of the blow-out state changing device (seventh embodiment).

FIGS. 30A to 30C are schematic diagrams showing a swing range of conditioned air (seventh embodiment).

FIG. 31 is an exploded perspective view showing a blowing state changing device (eighth embodiment).

FIGS. 32 (a) to (c) are explanatory views of the operation of the blow-out state changing device (eighth embodiment).

FIGS. 33 (a) to (c) are explanatory views of the operation of the blowing state changing device (eighth embodiment).

FIGS. 34A to 34E are perspective views showing modified examples of the rotary valve (eighth embodiment).

[Description of Signs] 2 Second air-conditioning unit (air-conditioning unit) 6 Air-conditioning ECU (outlet state control means) 20 Second air-conditioning duct (air-conditioning duct) 26 Middle seat FACE outlet (outlet) 27 Rear seat FACE outlet (Blow-out port) 30 FACE grille on middle seat side, rear seat side 31 Louver fin (Blow-off state variable means) 34 Louver fin (Blow-off state variable means) 68 Left-right direction position sensor (Blow-off state detection means) 69 Vertical position sensor (Blow-off state detection) Means) 31a Louver motor (actuator) 34a Louver motor (actuator)

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Katsuhiko Samukawa, Inventor: 1-1-1, Showa-cho, Kariya, Aichi Prefecture (72) Inventor: Yuichi Kajino 1-1-1, Showa-cho, Kariya, Aichi, Japan (72) Inventor Hirokazu Imai 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Inside DENSO Corporation

Claims (8)

[Claims] (A) an air conditioning duct having an air outlet for blowing air-conditioned air into a vehicle interior; (C) an actuator for oscillating the blowing state variable means, and (d) detecting the position of the blowing state variable means to detect a conditioned air blowing state. (E) while the operation of the actuator is continued, when the position of the blowing state variable means detected by the blowing state detecting means does not change, the operation of the actuator is changed. An air conditioner for a vehicle, comprising: a blowing state control unit for stopping the air conditioner. 2. The air conditioner for a vehicle according to claim 1, wherein the blowing state control means reduces a speed of change of a position of the blowing state changing means detected by the blowing state detecting means to a set speed or less. In this case, the operation of the actuator is stopped. (A) an air-conditioning duct having an air outlet for blowing air-conditioned air into the vehicle interior; (C) an actuator for driving the blowing state variable means in a reciprocating direction; and (d) detecting the position of the blowing state variable means to detect the air conditioning wind. (E) when the operation of the actuator is stopped, and when the position of the blowing state variable means detected by the blowing state detecting means changes, the blowing state detecting means detects the blowing state. An air conditioner for a vehicle, comprising: a blowing state control means for starting operation. 4. The vehicle air conditioner according to claim 3, wherein said blow state control means changes the position of said blow state variable means detected by said blow state detecting means by one reciprocation. An air conditioner for a vehicle, wherein the operation of the actuator is started. 5. The air conditioner for a vehicle according to claim 3, wherein the blow state control means sets the position of the blow state variable means detected by the blow state detection means in a reciprocating direction within a set time. An air conditioner for a vehicle, wherein the operation of the actuator is started when it changes by more than a set range. 6. The air conditioner for a vehicle according to claim 1, wherein the air outlet state changing means is movably mounted in a grill forming the air outlet. A louver fin, wherein the actuator is a louver motor that swings the plurality of louver fins at least in a left-right direction or a vertical direction of the vehicle. 7. An air-conditioning duct having an air outlet for blowing air-conditioned air into the vehicle interior; (C) an actuator for oscillating the blowing state variable means, and (d) detecting the position of the blowing state variable means to detect a conditioned air blowing state. (E) judging whether or not an occupant has operated the blowing state variable means based on a change in the position of the blowing state variable means detected by the blowing state detecting means. When the occupant operation determining means determines that the occupant has operated the blowout state changing means, the operation of the actuator is stopped when the operation of the actuator is continued. Air conditioning system and a blowout state control means for causing. 8. The air conditioner for a vehicle according to claim 7, wherein said occupant operation determining means detects said blowing state detecting means when said actuator continues to operate. An air conditioner for a vehicle, characterized in that when the change speed of the position is different from the target change speed, it is determined that the occupant has directly operated the blowing state changing means.