JP4311480B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner capable of correcting a center position of a target swing range of a louver fin that changes a blowing direction of conditioned air blown from an air outlet of an air conditioning duct.

[Conventional technology]
Conventionally, the blowing direction of the conditioned air blown from the face air outlet of the air conditioning unit is changed according to the temperature difference between the inside air temperature detected by the inside air temperature sensor and the set temperature set by the temperature setting device. There is known a vehicle air conditioner (first conventional example: see, for example, Japanese Patent Laid-Open No. 57-107912).

  Also, conventionally, even when the direction of the conditioned air blown from the air outlet of the air conditioning unit is in the direction avoiding the occupant, the amount of solar radiation detected by the solar radiation sensor exceeds the predetermined amount of solar radiation and hits the occupant In addition, a vehicle air conditioner (second conventional example: see, for example, Patent Document 2 (Japanese Patent Laid-Open No. 59-160617)) in which the blowing direction of the conditioned air is directed toward the passenger is also known.

[Deficiencies of conventional technology]
However, in recent years, the layout of the passenger compartment has been liberalized (so-called seat arrangement). For example, a seat slide for moving a third seat greatly in the longitudinal direction of the vehicle, for example, a rotating facing seat for rotating a second seat by 180 °, an all flat seat for fully reclining all seats, and the like have appeared.

In the case of a vehicle (one-box car) equipped with a seat that allows multiple seat arrangements such as this, even if there is sunshine or cool-down, the conditioned air may be blown out so that the blowing direction is as initially set, or the occupant Even if the control is performed so that the air-conditioning air blowing direction swings around the target position, the position of the occupant may be significantly deviated from the initial position. In this case, since the direction in which the air-conditioning air is blown out removes the position where the occupant is present, there is a problem that the air-conditioning feeling of the occupant, particularly the cooling feeling, is lowered. The front seat is not as good as the middle seat or the rear seat, but is unsatisfactory as initially set depending on the physique, posture, seat position, etc. of the passenger.
Here, it is conceivable that a dedicated sensor for detecting the position of the occupant is installed in the vehicle and the conditioned air is blown out toward the position of the occupant detected by the sensor. Due to the necessity of adding a dedicated sensor, there are problems that the number of parts increases and the price of the entire vehicle becomes expensive.

  On the other hand, when the temperature difference between the vehicle interior set temperature and the vehicle interior temperature is equal to or greater than the predetermined value, the swing of the wind direction deflecting blade (louver) is stopped, and when the temperature difference between the vehicle interior set temperature and the vehicle interior temperature is less than the predetermined value, 2. Description of the Related Art A vehicle air conditioner that swings a wind direction deflecting blade (third conventional example: see, for example, Patent Document 3 (Japanese Patent Publication No. Sho 62-48621)) is known. However, when the predetermined value is still hot for the occupant, even if the occupant pulls back the louver that is about to swing, the louver swings in a direction that avoids the occupant's direction again as long as it is below the predetermined value. As a result, the air conditioning state desired by the passenger cannot be reflected in the control. Conversely, when the occupant feels cold, trying to remove the swinging louver from the direction of the occupant will cause the louver to swing again as long as the swing conditions are met. There is a problem that it cannot be reflected in the control.

Here, regardless of the original louver swing control, it may be possible to reflect the air conditioning state desired by the occupant in the control by stopping the louver swing for a predetermined time or longer. When the wind blowing temperature is very cold, the location where the air conditioned wind has been applied for a long time becomes local cooling, and the passenger feels cold and uncomfortable. In addition, when the solar radiation hitting the occupant's body is very strong, if the air-conditioning wind is not applied for a long time, it feels hot and uncomfortable.
JP-A-57-107912 JP 59-160617 A Japanese Examined Patent Publication No. 62-48621

  In view of the above problems, the present invention can correct the center position of the target swing range of the blowing state variable means to the position where the occupant is present without adding a dedicated sensor for detecting the position where the occupant is present. The purpose is to do. Another object of the present invention is to allow the air conditioning state desired by the occupant to be reflected in the control.

  According to the first aspect of the present invention, when the blowing state variable means is swinging, the blowing state of the conditioned air blown from the outlet of the air conditioning duct (for example, the blowing direction of the conditioned air, the air distribution amount (blowing) If the air volume) or the blowing position (blowing height, blowing width, etc.) is different from the position where the occupant is present, the occupant must be positioned so that the conditioned air blown out from the outlet is directed toward the position where the occupant is present. Directly move the blowing state variable means. As a result, the current position of the blowing state varying means differs from the target position predicted from the operating speed of the actuator determined by the target position determining means. In such a case, the center position command means outputs the center position of the target swing range of the blowing state variable means to the current position changed by the occupant operation or its vicinity. Thus, from the next time, the blowing state varying means swings within the target swing range centered on the corrected center position.

  Therefore, the target blowing state of the conditioned air according to the position where the occupant is present can be corrected without adding a dedicated sensor for detecting the position where the occupant is present. For this reason, even if the position of the occupant is greatly deviated from the initial position, the state of the conditioned air blown from the air outlet of the air conditioning duct will remove the occupant by changing the state of the vehicle seat. Absent. Thereby, the air-conditioning wind blown out from the air outlet of the air-conditioning duct is directed toward the occupant so that the air-conditioning feeling of the occupant can be improved.

According to the second aspect of the present invention, when the blowing state variable means is commanded to swing around the initial setting position stored in advance from the center position storage means, the initial setting position is the center. The operating state of the actuator is controlled so that the blowing state varying means swings within the target swing range. When a correction command is input from the center position correction means, the center position storage means rewrites the center position of the target swing range of the blowing state variable means with the current position detected by the blowing state detection means.
According to the third aspect of the invention, when the manual setting means commands the oscillating movement of the blowing state varying means about the manual operation position determined by the manual operation of the occupant, The operating state of the actuator is controlled so that the blowing state varying means swings within a target swing range centered on the position.

  According to the fourth aspect of the present invention, when the air-conditioning state detected by the air-conditioning state detection unit and the target air-conditioning state set by the air-conditioning state setting unit are greatly different, the swinging motion of the blowing state variable unit is By controlling the operating state of the actuator so as to stop at the center position of the target swing range of the blowing state varying means, the conditioned air blown from the air outlet of the air conditioning duct locally hits the occupant. Thereby, a passenger | crew's air-conditioning feeling can be improved.

  According to the fifth aspect of the present invention, when the amount of solar radiation detected by the solar radiation amount detecting means is equal to or greater than the predetermined amount of solar radiation, the swinging motion of the blowing state variable means is the target swing of the blowing state variable means. By controlling the operation state of the actuator so as to stop at the center position of the moving range, the conditioned air blown from the air outlet of the air conditioning duct locally hits the occupant. Thereby, a passenger | crew's air-conditioning feeling can be improved.

  According to the sixth aspect of the present invention, when the inside air temperature detected by the inside air temperature detecting means and the set temperature set by the temperature setting means are greatly different, the swinging motion of the blowing state varying means is By controlling the operating state of the actuator so as to stop at the center position of the target swing range of the blowing state varying means, the conditioned air blown from the air outlet of the air conditioning duct locally hits the occupant. Thereby, a passenger | crew's air-conditioning feeling can be improved.

  According to the seventh aspect of the present invention, when the occupant operation determining means determines that the occupant has operated the blowing state variable means, the current position of the blowing state variable means detected by the blowing state detecting means or its position By stopping the swinging motion of the blowing state varying means in the vicinity until a predetermined time has elapsed, the air conditioning state desired by the passenger can be reflected in the control.

  According to the eighth aspect of the present invention, when it is detected that the blowing state variable means has moved beyond the movement amount expected from the operating speed of the actuator, it is determined that the occupant has operated the blowing state variable means. I have to. According to the ninth aspect of the present invention, when it is detected that the blowing state varying means has moved out of the predetermined swing range, it is determined that the occupant has operated the blowing state varying means. . Thus, it can be determined that the occupant has operated the blowing state variable means more easily than the invention of claim 8.

  The best mode for carrying out the invention will be described based on Examples 1 to 9 with reference to the drawings.

[Configuration of First Embodiment]
FIGS. 1 to 17 show a first embodiment of the present invention. FIG. 1 is a diagram showing the overall configuration of a vehicle air conditioner. FIG. 2 is a view showing the interior of a vehicle equipped with the vehicle air conditioner. FIG.

  The vehicle air conditioner of the present embodiment mainly adjusts the temperature of the first air conditioning zone for air conditioning the passengers on the front seat side of the vehicle 400 (passengers in the driver's seat and passengers in the passenger seat: the first passenger). 1 air-conditioning unit 1a and the temperature of the second air-conditioning zone for air-conditioning the passengers mainly on the intermediate and rear seats of the vehicle 400 (intermediate seat occupant: second occupant and rear seat occupant: third occupant) A second air conditioning unit 1b to be adjusted and an air conditioning control device (hereinafter referred to as an air conditioner ECU) 50 for controlling the air conditioning functional components of the first and second air conditioning units 1a and 1b are provided.

  The vehicle 400 of this embodiment includes a front seat (front seat: hereinafter abbreviated as front seat) 401, an intermediate seat (second seat: hereinafter abbreviated as middle seat) 402, and a rear seat (third seat: hereinafter abbreviated as rear seat). 403. The vehicle 400 is a one-box car capable of a plurality of seat arrangements, for example, a seat slide that moves the rear seat 403 largely in the front-rear direction, and the middle seat 402 is rotated 180 ° to occupy the rear seat and the rear seat side. It is possible to arrange seats such as a rotating face-to-face seat that faces the passenger and an all flat seat that fully reclines all seats.

  The first air conditioning unit 1a is disposed in the forefront of the vehicle interior of the vehicle 400, and has a first air conditioning duct 2a for guiding air into the vehicle interior. On the most upstream side of the first air conditioning duct 2a, there is provided an inside / outside air switching door 3a for switching the opening state between the inside air introduction port 6a and the outside air introduction port 7a (so-called inside / outside air mode). The inside / outside air switching door 3a is driven by a servo motor 5a. As a result, the first air conditioning unit 1a can be switched between an inside air circulation mode in which the air taken into the first air conditioning duct 2a is 100% inside air and an outside air introduction mode in which the outside air is 100%.

  The second air conditioning unit 1b is disposed at the rear end of the vehicle interior of the vehicle 400, and has a second air conditioning duct 2b for guiding air into the vehicle interior. An inside air inlet 6b is provided on the most upstream side of the air of the second air conditioning duct 2b. Unlike the first air conditioning duct 2a described above, the air taken into the second air conditioning duct 2b is only inside air, and is always It becomes inside air circulation mode. Here, when the above-mentioned first air conditioning unit 1a is in the outside air introduction mode, as shown in FIG. 2, when the conditioned air is blown out from the first air conditioning duct 2a, the conditioned air is blown out. For example, air in the vehicle interior is discharged from a discharge hole 7b that opens at a rear package tray (not shown) located at the rearmost position in the vehicle interior and communicates with the outside of the vehicle interior.

  And the 1st, 2nd blower 4a, 4b is arrange | positioned in the air downstream side site | part of the inside air inlet 6a, 6b of 1st, 2nd air conditioning duct 2a, 2b. These first and second blowers 4a and 4b are rotationally driven by blower motors 9a and 9b controlled by blower drive circuits 8a and 8b, and are placed in the vehicle interior in the first and second air conditioning ducts 2a and 2b. It is a blower that generates an air flow toward it.

  And in the 1st, 2nd air-conditioning duct 2a, 2b, the 1st, 2nd evaporator as a heat exchanger for cooling which cools the air to pass to the air downstream side of the 1st, 2nd blower 4a, 4b. 10a and 10b are arranged so as to block the entire air passages. The first and second evaporators 10 a and 10 b are one component part of a refrigeration cycle (not shown) mounted on the vehicle 400. In the refrigeration cycle of the present embodiment, the first and second evaporators 10a and 10b are connected in parallel between the condenser and the expansion valve, and the refrigerant upstream side of each of the first and second evaporators 10a and 10b. Are provided with first and second electromagnetic valves (not shown) for interrupting the flow of the respective refrigerants, and the first and second evaporators 10a, It is determined whether or not the refrigerant is supplied to 10b.

  And the 1st, 2nd temperature adjustment which adjusts the blowing temperature of the air blown into a vehicle interior in the 1st, 2nd evaporator 10a, 10b in the 1st, 2nd air conditioning duct 2a, 2b in the air downstream side. Means are provided. The first and second temperature adjusting means adjust the heating amount for adjusting the heating amount of the air that has passed through the first and second heater cores 13a and 13b and the first and second evaporators 10a and 10b as heat exchangers for heating. It is comprised from the 1st, 2nd air mix door (A / M door) 15a, 15b which is a means. The first and second A / M doors 15a and 15b are driven by servo motors 17a and 17b, respectively.

  Next, on the most downstream side of the air in the first and second air conditioning ducts 2a and 2b, an air outlet is provided for blowing out the conditioned air whose temperature is adjusted by the above-described air conditioning functional components. Since the formation position of this blower outlet differs between the first air conditioning unit 1a and the second air conditioning unit 1b, it will be described in two parts.

  First, on the most downstream side of the air in the first air conditioning duct 2a, a first outlet (front seat side) for blowing conditioned air toward different positions in the vehicle interior in the foremost instrument panel 40 in the vehicle interior. An air outlet) is provided. Specifically, a defroster (DEF) outlet 20 (see FIG. 3) for blowing conditioned air toward the inner surface of the front window of the vehicle 400 and the upper body (head and chest) of the front seat side passenger of the vehicle 400 To blow the conditioned air toward the four front seat face (FACE) outlets 21a (see FIG. 3) for blowing air conditioned air toward the lower body (foot part) of the passenger on the front seat side of the vehicle 400 The two front seat foot (FOOT) outlets 23a are examples of the first outlet.

  The four front seat side FACE outlets 21a are arranged at the driver seat side and the passenger seat side center FACE outlet opened at the center of the instrument panel 40 in the vehicle width direction, and at the most end sides in the vehicle width direction. Driver side and passenger side FACE outlet. Among these, four front seat side FACE outlets 21a and two front seat side FOOT outlets 23a are provided by a first outlet switching door 36a as a first outlet opening / closing means driven by a servo motor 29a. The opening state (so-called outlet mode) is adjusted. Accordingly, the first air conditioning unit 1a has a face (FACE) mode in which only the four front seat side FACE outlets 21a are opened, a foot (FOOT) mode in which only the two front seat side FOOT outlets 23a are opened, Further, the outlet mode such as the bi-level (B / L) mode that opens both the four front seat side FACE outlets 21a and the two front seat side FOOT outlets 23a can be switched.

  On the other hand, on the most downstream side of the air of the second air conditioning duct 2b, a plurality of air outlets for blowing out the conditioned air toward the upper body (head chest) of the passenger on the middle seat side and the rear seat side of the vehicle 400 as the second outlet. The middle seat side face (FACE) outlet 31b, the two rear seat side faces (FACE) outlet 32b (see FIG. 16), and the lower body of the occupant on the middle seat side and rear seat side of the vehicle 400 (foot part) A plurality of middle-seat side and rear-seat-side foot (FOOT) outlets 33b for blowing air-conditioning air toward the rear are provided.

  The four middle seat side and rear seat side FACE outlets 31b and 32b are, for example, the middle seat side corresponding to the middle seat 402 and the rear seat 403 of the vehicle 400, the middle seat side, and the rear seat on the rear seat side ceiling. It is provided on both sides in the vehicle width direction on the side. The remaining four middle seat side FACE outlets 31b are provided, for example, on the front side in the vehicle traveling direction of the ceiling portion on the middle seat side corresponding to the middle seat 402 of the vehicle 400. Further, the plurality of middle seat and rear seat FOOT outlets 33b are provided, for example, at the lower part of the middle seat 402 of the vehicle 400 so as to open near the floor of the vehicle 400. Similar to the rear seat side FACE outlets 31b and 32b, the rear seat side FACE outlets 31b and 32b are provided on both sides in the vehicle width direction.

  These middle seat and rear seat FACE outlets 31b and 32b and the middle seat and rear seat FOOT outlet 33b are second outlet switching doors as second outlet opening / closing means driven by a servo motor 39b. The opening state (so-called outlet mode) is adjusted by 36b. As a result, the second air conditioning unit 1b has a face (FACE) mode in which only a plurality of middle seat and rear seat FACE outlets 31b and 32b are opened, and six middle seat and rear seat FOOT outlets 33b. A foot (FOOT) mode that opens only the door, and a bi-level that opens both the plurality of middle seat and rear seat FACE outlets 31b and 32b and the plurality of middle and rear seat FOOT outlets 33b ( B / L) modes and the like can be switched.

  Next, the blowing state variable devices installed at the plurality of middle seat and rear seat FACE outlets 31b and 32b will be described with reference to FIGS. 1 and 4 to 6. FIG. Here, FIG. 4 is a diagram showing the overall configuration of the blowing state variable device.

  Each blowing state variable device includes a driver side (driver's seat side: hereinafter referred to as Dr side), a passenger side (passenger seat side: hereinafter referred to as Pa side) center grille 41, Dr side, Pa side side grille 42, a plurality of It is provided in the middle seat side and rear seat side face (RrFACE) grille 49, respectively. Of these, the air passages formed in the plurality of RrFACE grills 49 are used as the plurality of middle seat and rear seat FACE outlets 31b and 32b, respectively. In the plurality of RrFACE grills 49, a louver horizontal swing mechanism (see FIG. 5) and a louver vertical swing mechanism (see FIG. 6) are provided.

  The louver horizontal direction swing mechanism of each blowing state variable device has louver fins (hereinafter referred to as louvers) 43 arranged in a plurality of horizontal directions in the RrFACE grille 49 in the horizontal direction such as the horizontal direction or the front-rear direction with respect to the traveling direction of the vehicle 400. A link lever 44 that swings the louver 43 in a predetermined swing range in the left-right direction or the front-rear direction (horizontal direction) around the fulcrum, and the link lever 44 via the arm plate 45. And a louver motor (for example, a DC servo motor) 43a that reciprocates in the left-right direction. The plurality of louvers 43 correspond to the blowing state varying means of the present invention, and the air-conditioning air blowing directions blown out from the plurality of middle seat side and rear seat side FACE outlets 31b and 32b are respectively left and right. Or the blowing direction variable means which changes to the front-back direction is comprised.

  The louver vertical swing mechanism of each blowing state variable device includes a plurality of louver fins (hereinafter referred to as louvers) 46 arranged in a vertical direction with respect to the traveling direction of the vehicle 400 in the RrFACE grille 49, and the louvers 46. A link lever 47 that swings in a predetermined swing range in the vertical direction around the fulcrum, and a louver motor that reciprocates the link lever 47 in the vertical direction via the arm plate 48 (for example, a DC servo motor). 46a. The plurality of louvers 46 correspond to the blowing state varying means of the present invention, and the air-conditioning air blowing direction blown out from the plurality of middle-seat side and rear-seat side FACE outlets 31b, 32b is set in the vertical direction. The blowing direction variable means to change is comprised.

  Next, the air conditioner ECU 50 will be described with reference to FIGS. 1 and 4 to 6. The air conditioner ECU 50 corresponds to the blowing state control means, the center position command means, the target position determination means, the target swing range determination means, and the target position correction means of the present invention. The air conditioner ECU 50 includes a CPU, ROM, RAM, etc. The microcomputer is provided. The air conditioner ECU 50 is configured such that sensor signals from the sensors are A / D converted by an input circuit (not shown) and then input to the microcomputer. The air conditioner ECU 50 is powered by a battery mounted on the vehicle 400 when an ignition switch (not shown) or an accessory switch (not shown) of the vehicle 400 is turned on, and can perform arithmetic processing. .

  Various sensors for detecting air-conditioning environmental factors necessary for air-conditioning control of the first and second air-conditioning units 1a and 1b and affecting the air-conditioning state of the first and second air-conditioning zones are electrically connected to the input terminal of the air-conditioner ECU 50. Connected. Specifically, first and second inside air temperature sensors 91a and 91b for detecting the air temperature in the first and second air conditioning zones (hereinafter referred to as first and second inside air temperatures), and the outside air temperature ( An outside air temperature sensor 92 for detecting the outside air temperature) and an insolation sensor 93 for detecting the amount of solar radiation mainly entering the first air conditioning zone are electrically connected.

  Further, first and second post-evaporation temperature sensors 95a and 95b for detecting the air temperature immediately after passing through the first and second evaporators 10a and 10b (hereinafter referred to as first and second post-evaporation temperatures), A cooling water temperature sensor 96 that detects the temperature of the cooling water (hereinafter referred to as the cooling water temperature) and a direction of blowing the conditioned air blown from the plurality of middle seat and rear seat FACE outlets 31b and 32b. A plurality of potentiometers 97 and a plurality of potentiometers 98, and first and second temperature settings for setting the air temperature in the first and second air conditioning zones to desired temperatures (hereinafter referred to as first and second set temperatures). The switches 64a and 64b are electrically connected.

  Of these, the second room temperature sensor 91b corresponds to the room temperature detection means of the present invention. And the solar radiation sensor 93 is corresponded to the solar radiation amount detection means of this invention, and the solar radiation intensity detection means (for example, phototransistor, etc.) which detects the solar radiation amount (solar radiation intensity) irradiated in the 1st, 2nd air conditioning area. (Photodiode, solar cell), solar radiation direction detection means (for example, a temperature sensing element such as a photodiode, solar cell, thermistor, etc.) for detecting the direction of sunlight irradiation (sunlight direction, solar azimuth) It has solar radiation height detecting means (for example, a temperature sensitive element such as a photodiode, a solar cell, a thermistor) for detecting an elevation angle, solar radiation height, solar elevation angle).

  The plurality of potentiometers 97 correspond to the blowing state detecting means of the present invention. By detecting the stop position and the current position (detection angle) of the louver 43 in the left-right direction, the louver angle in the left-right direction of the louver 43 is determined. It is a louver angle detecting means for detecting, a blow direction detecting means for detecting the right and left direction of the conditioned air blown out from the middle seat side and rear seat side FACE outlets 31b, 32b, and a louver horizontal swing mechanism. Each is provided in the vicinity. The plurality of potentiometers 98 correspond to the blowing state detection means of the present invention, and the louver angle in the vertical direction of the louver 46 is determined by detecting the vertical stop position and the current position (detection angle) of the louver 46. In addition to detecting louver angles, the louver angle detecting means detects the vertical direction of the conditioned air blown out from the middle-seat side and rear-seat-side FACE outlets 31b and 32b, and near the louver vertical swing mechanism. Are provided respectively. Specifically, as shown in FIGS. 5 and 6, the plurality of potentiometers 97 and 98 are movable contacts 97 a that reciprocate in the left-right direction, the front-rear direction, and the up-down direction integrally with the link levers 44 and 47. 98a, and resistance elements 97b and 98b that change the voltage dividing ratio by moving the movable contacts 97a and 98a.

  The 1st temperature setting switch 64a is installed on the above-mentioned instrument panel 40. On this instrument panel 40, the blower outlet changeover switch (not shown) which switches a blower outlet mode to others, the inside and outside air mode are set. An inside / outside air switching switch (not shown) for switching, an AUTO switch for instructing to automatically adjust the temperature of the first air conditioning zone, an OFF switch for stopping the operation of the first air conditioning unit 1a, and the like are installed. The second temperature setting switch 64b corresponds to the temperature setting means of the present invention. For example, a controller (not shown) or a remote controller (not shown) disposed on the ceiling of the rear seat side of the vehicle 400. In addition to this, on this operation panel, an outlet switch (not shown) for switching the outlet mode, and an AUTO switch for instructing to automatically adjust the temperature of the second air conditioning zone (Not shown) and an OFF switch (not shown) for stopping the operation of the second air conditioning unit 1b are installed.

  On the other hand, the output terminal of the air conditioner ECU 50 includes the above-described servo motor 5a, blower motors 9a, 9b, an electromagnetic clutch of a compressor (not shown), first and second electromagnetic valves of a refrigeration cycle, servo motors 17a, 17b, 29a, 39b, a plurality of One louver motor 43a and a plurality of louver motors 46a are electrically connected. That is, the air conditioner ECU 50 performs arithmetic processing based on the air conditioning information taken in from the above input terminal, outputs a control signal from the output terminal so as to be in a desired air conditioning state, and controls each air conditioning functional component. . As a result, this vehicle air conditioner automatically switches the temperature in the passenger compartment, the inside / outside air mode, the air outlet mode, the automatic stop position of the louvers 43 and 46, the center position of the automatic swing of the louvers 43 and 46, and the transmission. The air volume is automatically controlled.

[Air conditioning control method of the first embodiment]
Next, an air conditioning control method by the air conditioner ECU 50 according to the present embodiment will be briefly 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, initialization (reset) of data, flags, etc. is performed (initial setting means: step S1). Specifically, initial setting (reset) is performed so that the louvers 43 and 46 of the respective FACE outlets are stopped at a predetermined initial setting position. And RAM etc. memorize | store the said initial setting position as an auto stop position (stop position) of the louvers 43 and 46 (stop position memory | storage means).
In addition, initial setting (reset) is performed so that the louvers 43 and 46 of the FACE outlets swing in a swing range centered on a predetermined initial setting position. Then, the RAM or the like stores the initial set position as the center position of the automatic swing (target swing range) of the louvers 43 and 46 (center position storage means).

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 switches 64a and 64b, respectively. Are stored in the RAM (first and second temperature setting means: step S2).
From each of the sensors described above, the outside air temperature TAM, the first inside air temperature TR (Fr), the solar radiation amount TS, the first post-evaporation temperature TE (Fr), and the cooling water temperature TW necessary for the air conditioning processing in the first air conditioning zone, The second inside air temperature TR (Rr) and the second post-evaporation temperature TE (Rr) necessary for the air conditioning processing in the two air conditioning zones are read and temporarily stored in the RAM (first and second inside air temperature detecting means: 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 processing in the second air conditioning zone.

Next, the detection angle (current position) θs of the louver 43 detected by the potentiometer 97 assembled to the plurality of RrFACE grills 49 and the detection angle (current position) θs of the louver 46 detected by the potentiometer 98 are calculated. Read (blowing state detection means: step S4).
Next, based on the formula 1 shown below, a first target blowing temperature TAO (Fr) of the conditioned air blown from the blowout port of the first air conditioning unit 1a is calculated (first target blowing temperature determining means: Step S5).

ここで、Ｋｓｅｔ（Ｆｒ）、ＫＲ（Ｆｒ）、ＫＡＭ（Ｆｒ）、ＫＳ（Ｆｒ）はそれぞれ第１設定温度Ｔｓｅｔ（Ｆｒ）、第１内気温度ＴＲ（Ｆｒ）、外気温度ＴＡＭおよび日射量ＴＳの補正ゲインであり、Ｃ（Ｆｒ）は補正定数である。

Here, Kset (Fr), KR (Fr), KAM (Fr), and KS (Fr) are respectively the first set temperature Tset (Fr), the first inside air temperature TR (Fr), the outside air temperature TAM, and the solar radiation amount TS. It is a correction gain, and C (Fr) is a correction constant.

  Next, the inside / outside air mode of the first air conditioning unit 1a is determined from the characteristic diagram of FIG. 8 based on the TAO (Fr) calculated in step S5 (step S6). In FIG. 8, SW1 is a target opening degree of the inside / outside air switching door 3a. In this embodiment, when the inside air introduction port 6a is fully opened and the outside air introduction port 7a is fully closed, the target opening degree SW1 = 0%. And the inside opening 6a is fully closed and the outside opening 7a is fully opened, the target opening degree SW1 = 100%.

Next, based on the TAO (Fr) calculated in step S5 described above, the air outlet mode of the first air conditioning unit 1a is determined from the characteristic diagram of FIG. 9 (step S7).
Next, the air flow rate of the first blower 4a of the first air conditioning unit 1a is determined. Actually, the blower control voltage (V) applied to the blower motor 9a is determined from the characteristic diagram of FIG. 10 based on the TAO (Fr) calculated in step S5 (step S8).

  Next, a second target blowing temperature TAO (Rr) of the conditioned air blown out from the blowout port of the second air conditioning unit 1b is calculated based on the following equation (2) (second target blowing temperature determining means: Step S9).

ここで、Ｋｓｅｔ（Ｒｒ）、ＫＲ（Ｒｒ）、ＫＡＭ（Ｒｒ）、ＫＳ（Ｒｒ）はそれぞれ第２設定温度Ｔｓｅｔ（Ｒｒ）、第２内気温度ＴＲ（Ｒｒ）、外気温度ＴＡＭおよび日射量ＴＳの補正ゲインであり、Ｃ（Ｒｒ）は補正定数である。

Here, Kset (Rr), KR (Rr), KAM (Rr), and KS (Rr) are respectively the second set temperature Tset (Rr), the second inside air temperature TR (Rr), the outside air temperature TAM, and the solar radiation amount TS. It is a correction gain, and C (Rr) is a correction constant.

Next, the air outlet mode of the second air conditioning unit 1b is determined from the characteristic diagram of FIG. 11 based on the TAO (Rr) calculated in step S9 (step S10).
Next, the routines of FIGS. 13 to 15 are activated to determine the control state of each blowing state variable device. Specifically, the air-conditioning air blowing direction from the plurality of middle seat and rear seat FACE outlets 31b and 32b of the second air conditioning unit 1b, that is, the plurality of RrFACE grills 49 is determined (blowing direction determining means). : Step S11). Next, the air flow rate of the second blower 4b of the second air conditioning unit 1b is determined. Actually, the blower control voltage (V) applied to the blower motor 9b is determined from the characteristic diagram of FIG. 12 based on the TAO (Rr) calculated in step S9 (step S12). Next, based on the TAO (Fr) and TAO (Rr) calculated in Steps S5 and S9 described above, the target opening degrees θ (Fr), θ ( Rr) is calculated from the following formula 3 and formula 4 (step S13).

  Next, a control signal is output to the various air conditioning functional components so that the air conditioning control state determined or calculated in steps S4 to S13 described above is obtained (step S14). Next, it is determined whether or not a predetermined control cycle time (τ) has elapsed (step S15). If the determination result is YES, the process returns to step S2. If the determination result is NO, the control cycle time (τ) is awaited.

  Next, the determination of swing louver control by the air conditioner ECU 50 will be described with reference to FIGS. Here, FIG. 13 to FIG. 15 are flowcharts showing the swing louver control determination by the air conditioner ECU 50. This flowchart is performed for each blowing state variable device of each RrFACE grill 49.

First, it is determined whether or not the air outlet mode of the second air conditioning unit 1b determined in step S10 is the FACE mode or the B / L mode (step S21). If this determination is NO, the routine of FIG. 13 is exited.
Moreover, when the determination result of step S21 is YES, it is determined whether it is at the time of cool-down. Specifically, the outside air temperature TAM is 30 ° C. or more and within a predetermined time (for example, 10 minutes) from the start (engine start) of the second air conditioning unit 1b, or the second set temperature Tset (Rr). 2. It is determined whether or not the inside air temperature TR (Rr) is higher than, for example, 5 ° C. (step S22). When the determination result is YES, the routine of FIG. 14 is started and the louvers 43 and 46 are stopped (automatic stop) (step S23). Thereafter, the routine of FIG. 13 is exited.

If the determination result in step S22 is NO, it is determined whether or not the second inside air temperature TR (Rr) is equal to or higher than a predetermined temperature α (for example, 30 ° C.) (step S24). If this determination is YES, the process proceeds to step S23.
Moreover, when the determination result of step S24 is NO, it is determined whether the solar radiation amount TS is more than a fixed amount β (for example, 500 W / m ² ) (step S25). If this determination is YES, the process proceeds to step S23.
Moreover, when the determination result of step S25 is NO, it is determined whether the solar radiation right-and-left angle is more than a fixed angle (gamma) (for example, 60 degrees) (step S26). If this determination is YES, the process proceeds to step S23.
If the determination result in step S26 is NO, the routine in FIG. 15 is activated to automatically swing the louvers 43 and 46 (step S27). Thereafter, the routine of FIG. 13 is exited.

Next, when the routine of FIG. 14 is activated, the automatic stop position θc of the louvers 43 and 46 as in the previous (for example, initial setting) is read from the RAM or the like (stop position command means: step S31).
Next, the louver motors 43a and 46a are controlled so that the louvers 43 and 46 stop at the auto stop position θc read in step S31, that is, the position where the air-conditioning air blowing direction is at the occupant on the middle seat side and the rear seat side ( Step S32).

  Next, during auto stop, that is, when the operation of the louver motors 43a, 46a is stopped, the detected angle (current position) θs of the louver 43 detected by each potentiometer 97 is read in step S31. It is determined whether it is different from θc. Further, it is determined whether or not the detected angle (current position) θs in the vertical direction of the louver 46 detected by each potentiometer 98 is different from the auto stop position (stop position) θc read in step S31 (step S33). If this determination is NO, the routine of FIG. 14 is exited.

When the determination result in step S33 is YES, the auto stop position θc of the louvers 43 and 46 is corrected. Specifically, the detected angle θs of the louvers 43 and 46 detected by the potentiometers 97 and 98 is stored as the auto stop position θc. That is, the auto stop position θc is rewritten (stop position correction means, stop position storage means: step S34).
Next, the automatic swing center position θc of the louvers 43 and 46 is corrected. Specifically, the detected angle θs of the louvers 43 and 46 detected by the potentiometers 97 and 98 is stored as the center position of the auto swing. That is, the center position θc of the auto swing is rewritten (center position correction means, center position storage means: step S35). Thereafter, the routine of FIG. 14 is exited.

On the other hand, when the routine of FIG. 15 is activated, the center position θc of the auto swing as in the previous time (for example, initial setting) is read (center position command means: step S41).
Next, an auto swing range (target swing range) centered on the center position θc read in step S41 is determined (target swing range determining means: step S42).
Next, the louvers 43 and 46 are in the auto-swing range centering on the center position θc as in the previous time (for example, the initial setting), that is, the position where the air-conditioning air blowing direction is on the middle seat side and the rear seat side. The louver motors 43a and 46a are controlled so as to swing at a reciprocal motion (for example, 120 [deg.] Reciprocation) (step S43).
Next, the target louver angle (target position) θn of the louvers 43 and 46 predicted from the operating speed of the louver motors 43a and 46a is calculated (target position determination means: step S44). Specifically, when the swing speed of the louvers 43 and 46 is a constant speed (for example, 10 ° / sec), if the control cycle time of the routine of FIG. Therefore, the target louver angle θn after 1 second is {previous target position (θn) + 10 °}.

  Next, during auto swing, that is, when the louver motors 43a, 46a are operating, the detected angle (current position) θs of the louver 43 detected by each potentiometer 97 is the target louver angle determined in step S44. It is determined whether it is different from θn. Further, it is determined whether or not the detected angle (current position) θs in the vertical direction of the louver 46 detected by each potentiometer 98 is different from the target louver angle θn determined in step S44 (step S45). If this determination is NO, the routine of FIG. 15 is exited.

When the determination result in step S45 is YES, the automatic stop position θc of the louvers 43 and 46 is corrected. Specifically, the detected angle θs of the louvers 43 and 46 detected by the potentiometers 97 and 98 is stored as the auto stop position θc. That is, the auto stop position θc is rewritten (stop position correction means, stop position storage means: step S46).
Next, the automatic swing center position θc of the louvers 43 and 46 is corrected. Specifically, the detected angle θs of the louvers 43 and 46 detected by the potentiometers 97 and 98 is stored as the center position θc of the auto swing. That is, the center position θc of the auto swing is rewritten (center position correction means, center position storage means: step S47). Thereafter, the routine of FIG. 15 is exited.

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

For example, when the air outlet mode of the first air conditioning unit 1a is the FACE mode (B / L mode may be used), the inside air sucked into the first air conditioning duct 2a from the inside air inlet 6a by the action of the first blower 4a After the first evaporator 10a is cooled down to about 4 ° C., for example, the amount of air passing through the first heater core 13a is adjusted according to the opening degree of the first A / M door 15a, and the front seat occupant sets 1 It becomes the conditioned air of the optimal temperature according to preset temperature Tset (Fr).
Thereafter, the conditioned air (cold air) is supplied from the plurality of front seat side FACE outlets 21a opened at the most downstream end of the first air conditioning duct 2a to the inside of the first air conditioning zone on the front seat side in the vehicle interior of the vehicle 400. Is blown out. In particular, the cold air is blown out toward the head and chest of the passenger on the front seat side in the first air conditioning zone.

On the other hand, when the air outlet mode of the second air conditioning unit 1b is the FACE mode (or B / L mode may be used), the second air blower 4b acts as the second air blower 4b through the inside air inlet 6b in the same manner as the first air conditioning unit 1a. (2) After the inside air sucked into the air conditioning duct 2b is cooled to about 4 ° C. by the second evaporator 10b, the amount of air passing through the second heater core 13b is adjusted according to the opening degree of the second A / M door 15b. Thus, the conditioned air at the optimum temperature according to the second set temperature Tset (Rr) set by the passengers on the middle seat side and the rear seat side is obtained.
Thereafter, the conditioned air (cold air) flows from the plurality of middle seat and rear seat side FACE outlets 31b and 32b opened at the most downstream end of the second air conditioning duct 2b to the rear seat side of the vehicle 400 in the vehicle 400. In the second air conditioning zone. In particular, the cold air is blown out toward the passenger's head and chest on the middle seat side and the rear seat side in the second air conditioning zone.

Here, when the air-conditioning state in the second air-conditioning zone on the middle seat side and the rear seat side of the vehicle 400 is cool-down or when there is solar radiation, as shown in FIGS. 16 and 17A. In addition, the auto-stop position that is initially set to direct the conditioned air blown from the middle-seat side and rear-seat-side FACE outlets 31b and 32b locally (spot-like) to the middle-seat side and rear-seat passengers After the louvers 43 and 46 are driven to the (initial setting position), the louvers 43 and 46 stop. The blowing direction of the conditioned air at this time is indicated by an arrow at the initial setting in FIG. 16 and by an arrow in FIG.
However, as shown in FIG. 16, the occupant on the middle seat side turns the middle seat 402 by 180 ° to turn to face-to-face, or the occupant on the rear seat side slides the rear seat 403 to the rear side of the vehicle 400. For example, the direction in which the louvers 43 and 46 are directed after the above-described operation, that is, the direction in which the conditioned air is blown, which is determined by the initial setting, may deviate from the positions where the occupants are located on the middle seat side and the rear seat side.

  In this case, the passenger on the side of the middle seat directly touches the louvers 43 and 46 and directs the louvers 43 and 46 toward him so that the direction of the conditioned air blown from the middle seat side FACE outlet 31b is determined by himself / herself. The direction is directed in the direction of the arrow after the movement of the sheet in FIG. Further, the passenger on the rear seat side directly touches the louvers 43, 46 and directs the louvers 43, 46 toward him / herself, as shown in FIG. The blowing direction of the conditioned air blown out from 31b and 32b is directed toward the user (the direction of the arrow with black dots in FIG. 16).

  As described above, when the occupants on the middle seat side and the rear seat side operate the louvers 43 and 46, and when the louvers 43 and 46 are in automatic stop, the operation of the louver motors 43a and 46a is stopped. Nevertheless, the air conditioner ECU 50 detects that the detection angles of the potentiometers 97 and 98, that is, the current positions of the louvers 43 and 46 (potentiometer output signals) are changing. At this time, the air conditioner ECU 50 determines that the positions of the passengers on the middle seat side and the rear seat side are the positions after the seat movement, and stores the automatic stop position of the louvers 43 and 46 and the center position of the automatic swing stored in advance. Is corrected and stored in the detected angle detected this time.

Therefore, when the second air conditioning unit 1b is in a steady operation (for example, when the second inside air temperature is approaching the second set temperature) or without solar radiation from the above-described cool-down state or when there is solar radiation. Even when the air-conditioning state changes to the state of the hour and switches to the swing mode in which the louvers 43 and 46 are swung at a predetermined louver angle, the positions of the louvers 43 and 46 that the passengers on the middle seat side and the rear seat side face As shown in FIG. 17B, the louvers 43 and 46 are centered on the rewritten center position (broken line position in FIG. 17) as shown in FIG. 17B. ) Will swing.
The corrected auto stop position and auto swing center position of the louvers 43 and 46 are updated in both the vertical direction and the horizontal direction. After that, when the louvers 43 and 46 are automatically stopped so as to be directed locally (spot-like) to the occupants on the middle seat side and the rear seat side, such as during cool-down or when there is solar radiation, this corrected auto-stop position is targeted. Be controlled.

On the other hand, when the occupants on the middle seat side and the rear seat side operate the louvers 43 and 46, and the louvers 43 and 46 are in the automatic swing, they are shown in FIGS. 16 and 17A and 17B. In this way, the initially set swing range means that it is outside the ideal swing range, so correction is applied. Also in this case, the automatic stop position of the louvers 43 and 46 and the center position of the automatic swing are updated in both the vertical direction and the horizontal direction.
Here, when the occupants of the middle seat side and the rear seat side operate the louvers 43 and 46 and the swing range of the louvers 43 and 46 deviates significantly from the initially set swing range, A louver angle that should not be detected is detected. For this reason, it can be easily detected that the air conditioner ECU 50 operates the louvers 43 and 46 by directly touching the louvers 43 and 46 by the occupants on the middle seat side and the rear seat side.
At this time, the air conditioner ECU 50 stores the detected angle θs detected this time as the center position of the auto swing, assuming that there are passengers on the middle seat side and the rear seat side outside the auto swing range, and the center position is stored. Correct to swing to the center. After that, the air-conditioning state in the second air-conditioning zone changes and the louvered air is directed locally (spot-like) to the passengers on the middle and rear seats, as in cool-down and solar radiation. When control is desired, the corrected center position is controlled as an auto stop position.

On the other hand, it becomes complicated when the passengers on the middle seat side and the rear seat side operate within the swing range of the auto swing. The reason is that the swing speed of the louvers 43 and 46 (operating speed of the louver motors 43a and 46a) is a constant speed, so that the louvers 43 and 46 swinging in a reciprocating 120 ° swing range, for example, once every 12 seconds. Assuming that the air conditioner is swinging, the air conditioner ECU 50 detects a two-potential change every time the position of the louvers 43 and 46 is detected.
Accordingly, when it is detected that the louver 43, 46 has deviated from the predicted target position θn from the swing speed of the louvers 43, 46, that is, the operating speed of the louver motors 43a, 46a, that is, from the detected angle θs previously detected by the potentiometers 97, 98. When a large change of 10 ° or more is detected, it can be clearly determined that there is an operation by the passenger on the middle seat side and the rear seat side (in the case of the air conditioner ECU 50 that detects five times per second).
Therefore, it is determined that the detected angle θs detected this time is the position where the passengers on the middle seat side and the rear seat side are present, and the detected angle θs is rewritten as the center position of the auto swing, and the center position thus rewritten is the center. Thus, control is performed so as to swing within a predetermined swing range. After that, the air-conditioning state in the second air-conditioning zone changes, and the louver is directed locally (spot-like) to the passengers on the middle and rear seats, as in cool-down and solar radiation. When control is desired, the center position of the corrected auto swing (= auto stop position) is controlled as a target.

[Effects of First Embodiment]
As described above, multiple seat arrangements are possible, such as a seat slide that greatly moves the rear seat 403 in the front-rear direction, a rotating facing seat that rotates the middle seat 402 by 180 degrees, and an all flat seat that fully reclines all seats. Even in the case of the vehicle 400, the air conditioner ECU 50 detects that the passengers on the middle seat side and the rear seat side touch the louvers 43 and 46 and operate the louvers 43 and 46, so that the middle seat side and the rear seat side Correction of the target blowing direction of the conditioned air according to the position where the occupant is present can be easily performed.
As a result, by changing the seat arrangement of the middle seat 402 and the rear seat 403, even if the positions of the occupants on the middle seat side and the rear seat side greatly deviate from the initial setting positions, the stored auto stop position and Since the center position of the auto swing is rewritten to the one after the seat movement, after the seat movement, the blowing direction of the conditioned air blown from the middle seat side, rear seat side FACE outlet 31b, 32b is the middle seat side, The passenger on the rear seat side will not be removed.
Therefore, even if the positions of the occupants on the middle seat side and the rear seat side are significantly deviated from the initial setting positions, the direction of the conditioned air blown out from the middle seat side and rear seat side FACE outlets 31b and 32b is The occupant's cooling feeling can be dramatically improved by heading to. In addition, since it is not necessary to add a dedicated sensor for detecting the positions of the passengers on the middle seat side and the rear seat side, the number of parts can be reduced, and the product price of the entire vehicle 400 can be reduced.

[Configuration of Second Embodiment]
18 to 30 show a second embodiment of the present invention. FIG. 18 is a diagram showing the overall configuration of a vehicle air conditioner. FIG. 19 is an air conditioner operation panel and a Dr side, Pa side louver operation panel. FIG.

The air conditioning unit 1 of the vehicle air conditioner according to the present embodiment is an air conditioner unit capable of performing temperature adjustment, auto louver control, manual louver control, and the like independently of the Dr side air conditioning zone and the Pa side air conditioning zone. The air conditioning unit 1 includes an air conditioning duct 2. On the upstream side of the air conditioning duct 2, an internal / external air switching door 3 that is driven by a servo motor 5 to open and close the internal air intake port 6 and the external air intake port 7, and is driven to rotate by a blower motor 9 controlled by a blower drive circuit 8. Blower 4 is provided.
An evaporator 10 is provided in the air conditioning duct 2. A heater core 13 is provided on the downstream side of the evaporator 10. 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. Further, on the upstream side of the heater core 13, there are provided Dr-side and Pa-side A / M doors 15 and 16 for independently adjusting the temperatures of the Dr-side air conditioning zone and the Pa-side air conditioning zone in the passenger compartment. Yes. The Dr side and Pa side A / M doors 15 and 16 are driven by servo motors 17 and 18.

  On the downstream side of the first air passage 11, a DEF outlet 20, a Dr-side center FACE outlet 21, a Dr-side FACE outlet 22 and a Dr-side FOOT outlet 23 are opened. Further, on the downstream side of the second air passage 12, a Pa-side center FACE outlet 31, a Pa-side FACE outlet 32, and a Pa-side FOOT outlet 33 are opened. And in the 1st, 2nd air passages 11 and 12, Dr side and Pa side outlet switching doors 24-26 which perform the setup of the air outlet mode of Dr side and Pa side of a vehicle interior mutually independently, 35 and 36 are provided. The Dr-side and Pa-side outlet switching doors 24 to 26, 35, and 36 are driven by servo motors 28, 29, and 39, respectively. Here, there are a FACE mode, a B / L mode, a FOOT mode, an F / D mode, a DEF mode, and the like as the outlet side on the Dr side and the Pa side.

  And the blowing state variable apparatus is attached to Dr side center FACE blower outlet 21, Dr side side FACE blower outlet 22, Pa side center FACE blower outlet 31, and Pa side side FACE blower outlet 32, respectively. Each blowing state variable device is provided in the Dr side, Pa side center grille 41, Dr side, and Pa side side grille 42, respectively. The air passages in the Dr side, Pa side center, and side grills 41 and 42 are the above-described Dr side center FACE outlet 21, Dr side FACE outlet 22, Pa side center FACE outlet 31, and Pa side. Used as the side FACE outlet 32. A louver horizontal swing mechanism (see FIG. 5) and a louver vertical swing mechanism (see FIG. 6) are provided in the Dr side, Pa center, and side grills 41 and 42, respectively. Here, the louver fins 43 and 46 of the present embodiment are referred to as center louvers or side louvers.

  As shown in FIGS. 18 and 19, switch signals are input from the air conditioner operation panel 51, the Dr-side louver operation (SWINGSW) panel 52, and the Pa-side louver operation (SWINGSW) panel 53 to the air conditioner ECU 50 of the present embodiment. Is done. The air conditioner operation panel 51 is integrally installed in the center of the vehicle front surface in the vehicle width direction, that is, the instrument panel 40. The air conditioner operation panel 51 includes an air conditioner (A / C) switch 54, a suction port 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 device 63, a Dr side temperature setting switch 64, a Pa side temperature setting switch 65, and the like are provided.

Of the above, the dual switch 58 is a left / right independent control command means for commanding left / right independent temperature control in which temperature adjustment in the Dr-side air conditioning zone and temperature adjustment in the Pa-side air conditioning zone are performed independently of each other. Moreover, the blower outlet mode changeover switch 59 is a blower outlet switching means fixed to any one of the FACE mode, the B / L mode, the FOOT mode, or the F / D mode.
The blower air volume switching switch 60 is an air volume switching means that switches the blower air volume of the blower 4 in stages. Each time the blower air volume changeover switch 60 is pressed once, the blower air quantity changeover switch 60 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 energization to the blower motor 9 is stopped. When Lo, M1, M2, M3, and Hi are displayed, the blower control voltage VA applied to the blower motor 9 is set to a minimum value (minimum air volume), a first intermediate value (first intermediate air volume), and a second intermediate value ( The second intermediate air volume), the third intermediate value (third intermediate air volume), and the maximum value (maximum air volume) are fixed.

The Dr-side temperature setting switch 64 is Dr-side temperature setting means for setting the temperature in the Dr-side air conditioning zone to a desired temperature. The Pa side temperature setting switch 65 is Pa side temperature setting means for setting the temperature in the Pa side air conditioning zone to a desired temperature. The Dr-side temperature setting switch 64 and the Pa-side temperature setting switch 65 can set the Dr-side set temperature and the 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 on the right side of the air-conditioner operation panel 51 at the center of the instrument panel 40, and allows the Dr-side center and the side grilles 41 and 42 to swing both. A CENTER switch 67 that allows the grille 41 to swing, a SIDE switch 68 that enables the Dr-side side grille 42 to swing, and a swing mode changeover switch 69 are configured.

Among the above, the MATCH switch 66, the CENTER switch 67, and the SIDE switch 68 are push type switches having a normal position (OFF) and a pushing position (ON). The swing mode changeover switch 69 is a rotary switch having respective changeover positions of STOP (swing stop), AUTO (auto swing), Rr, U-DSWING (vertical swing), and R-LSSWING (horizontal swing).
When the swing mode changeover switch 69 is set to AUTO, the swing mode changeover switch 69 outputs a command to perform auto louver control on the center of the Dr-side center grill 41 or the Dr-side side grill 42 and the side louvers 43 and 46. When the swing mode changeover switch 69 is set to Rr, the center and side louvers 43 and 46 are swung so that the air volume distribution is larger in the rear seat air conditioning zone than in the front seat air conditioning zone of the vehicle. . For example, the swing speed of the center of the Dr side center grille 41 and the side louvers 43 and 46 is fast in the zone where the conditioned air blows out so as to hit the occupant in the Dr side air conditioning zone, and the conditioned air so as not to hit the occupant in the Dr side air conditioning zone. Slow down in the zone that blows out.

When the swing mode changeover switch 69 is set to U-DSWING, the center of the Dr-side center grill 41 or the Dr-side side grill 42 and the side louver 46 are swung in the vertical direction (UD direction) within a predetermined swing range. A command is output to perform manual louver control. Further, when the swing mode changeover switch 69 is set to R-LSWING, the center of the Dr-side center grill 41 or the Dr-side side grill 42 and the side louver 43 swing left and right (RL direction) within a predetermined swing range. A command is output to perform manual louver control.
The Pa-side louver operation panel 53 is similar to the Dr-side louver operation panel 52. The MATCH switch 70 that enables both the Pa-side center and the side grilles 41 and 42 to swing, and the CENTER that enables the Pa-side center grille 41 to swing. The switch 71 includes a SIDE switch 72 and a swing mode changeover switch 73 that allow the Pa-side side grill 42 to swing.

Among the above, the MATCH switch 70, the CENTER switch 71, and the SIDE switch 72 are push type switches having a normal position (OFF) and a pushing position (ON). The swing mode changeover switch 73 is a rotary switch having respective changeover positions of STOP (swing stop), AUTO (auto swing), Rr, U-DSWING (vertical swing), and R-LSSWING (left / right swing).
In the same way as the swing mode changeover switch 69, the swing mode changeover switch 73, when set to AUTO, automatically controls the center of the Pa side center grill 41 or the Pa side side grille 42 and the side louvers 43, 46. The command is output so that When the swing mode changeover switch 73 is set to Rr, the center and side louvers 43 and 46 are swung so that the air volume distribution is larger in the rear seat air conditioning zone than in the front seat air conditioning zone of the vehicle. . For example, the swing speed of the center of the Pa-side center grille 41 and the side louvers 43, 46 is fast in the zone where the conditioned air blows so as to hit the occupant in the Pa-side air-conditioning zone, and the conditioned air so as not to hit the occupant in the Pa-side air-conditioning zone Slow down in the zone that blows out.

When the swing mode changeover switch 73 is set to U-DSWING, the center and side louver 46 of the Pa-side center grill 41 or Pa-side side grill 42 is swung in the vertical direction (UD direction) within a predetermined swing range. A command is output to perform manual louver control. Further, when the swing mode changeover switch 73 is set to R-LSWING, the center of the Pa-side center grill 41 or the Pa-side side grill 42 and the side louver 43 are swung in the left-right direction (RL direction) within a predetermined swing range. A command is output to perform manual louver control.
Here, as shown in FIG. 19, between the Dr-side and Pa-side center grille 41, a shutter (not shown) for opening and closing the Dr-side and Pa-side center FACE outlets 21 and 31 is manually operated. A door opening / closing switch 74 is provided. Further, the Dr side, Pa side center grille 41 and the Dr side, Pa side side grille 42 have knobs 75, 76 for moving the louver directions of the centers and side louvers 43, 46 in the horizontal direction and the vertical direction by manual operation. Is provided.

Further, the air conditioner ECU 50 includes an inside air temperature sensor 91 for detecting the inside air temperature, an outside air temperature sensor 92 for detecting the outside air temperature, and the Dr side and Pa side for detecting the amount of solar radiation irradiated in the Dr side and Pa side air conditioning zones. A solar radiation sensor 93 is connected as a solar radiation amount detecting means. In addition, Dr side, Pa side blowing temperature sensors 94a, 94b for detecting the blowing temperature of the conditioned air blown into the Dr side, Pa side air conditioning zone, a post-evaporation temperature sensor 95 for detecting the actual air cooling degree by the evaporator 10, and the vehicle A cooling water temperature sensor 96 for detecting the temperature of the engine cooling water, and potentiometers 97, 98 for detecting the current positions of the center and side louvers 43, 46 of each blowing state variable device (air blowing direction) are connected. Yes.
In addition, the solar radiation sensor 93 is a solar radiation intensity detection means (for example, a phototransistor, a photodiode, a solar cell) for detecting the amount of solar radiation (solar radiation intensity) irradiated in the Dr side and Pa side air conditioning zones, and the direction of sunlight irradiation ( Solar radiation direction detecting means for detecting the solar radiation direction and solar radiation azimuth (for example, a temperature sensing element such as a photodiode, solar cell, thermistor, etc.) and solar radiation altitude for detecting the altitude of sunlight (solar radiation elevation angle, solar radiation altitude, solar elevation angle). It has a detecting means (for example, a temperature sensitive element such as a photodiode, a solar cell, or a thermistor).

[Control Method of Second Embodiment]
Next, a control method by the air conditioner ECU 50 according to the present embodiment will be described with reference to FIGS. Here, FIG. 20 is a flowchart showing an example of a control program of the air conditioner ECU 50.

First, the contents stored in the data processing memory (RAM) are initialized (step 100). Next, various data are read into the data processing memory (step 110). Next, based on the stored data as described above and the following equations (5) and (6), the Dr-side target outlet temperature TAO (Dr) and the Pa-side target outlet temperature TAO (Pa) are calculated. (Step 120).

However, Tset (Dr) and Tset (Pa) represent the set temperature in the Dr side air conditioning zone and the set temperature in the Pa side air conditioning zone, respectively, and TS represents the solar radiation amount in the Dr side and Pa side air conditioning zone, respectively. To express. TR and TAM represent the inside air temperature and the outside air temperature, respectively. Kset, KR, KAM, KS, Kd (Dr), and Kd (Pa) represent the temperature setting gain, the inside air temperature gain, the outside air temperature gain, the solar radiation amount gain, and the temperature difference correction gain of the first and second air conditioning zones, respectively. .
Ka (Dr) and Ka (Pa) represent gains for correcting the degree of influence of the outside air temperature TAM on the air conditioning temperatures of the Dr side air conditioning zone and the Pa side air conditioning zone, respectively, and CD (Dr), CD (Pa ) Represents a constant corresponding to the degree of influence, and C represents a correction constant. Here, values such as Ka (Dr), Ka (Pa), CD (Dr), and CD (Pa) vary depending on various parameters such as the shape and size of the vehicle and the air blowing direction of the air conditioning unit 1.

Next, the Dr-side target blowing temperature TAO (Dr) and Pa-side target blowing temperature TAO (Pa) obtained in step 120 above, and the blower control voltage characteristics with respect to the target blowing temperature shown in the characteristic diagram of FIG. Based on the above, the blower control voltages VA (Dr) and VA (Pa) to be applied to the blower motor 9 are calculated (step 130). Next, the target air temperature TAO (Dr) on the Dr side and the target air temperature TAO (Pa) on the Pa side obtained in step 120, and the air outlet mode characteristics with respect to the target air temperature shown in the characteristic diagram of FIG. Based on the above, each outlet mode of the Dr side air conditioning zone and the Pa side air conditioning zone is determined (step 140).
In addition, by operating the air outlet mode changeover switch 59 provided on the air conditioner operation panel 51, the air outlet operation mode is fixed to any one of the FACE mode, the B / L mode, the FOOT mode, and the F / D mode. . Here, in this embodiment, when the front defroster switch 56 is operated, the DEF mode is set. Even if the outlet mode is the FOOT mode, the F / D mode, or the DEF mode, the Dr side side FACE outlet 22 and the Pa side FACE outlet 32 are always open.

Next, the operation pattern in the case of operating the blowing state variable device of each center and the side grilles 41 and 42 is determined (step 150). The control process in step 150 will be described later.
Next, the calculation of the A / M opening SW (Dr) (%) of the Dr-side A / M door 15 and the A / M opening SW (Pa) (%) of the Pa-side A / M door 16 is calculated as Dr side Target blowing temperature TAO (Dr) and Pa target blowing temperature TAO (Pa), post-evaporation temperature sensor (TE) detected by post-evaporation temperature sensor 95, and cooling water temperature detected by cooling water temperature sensor 96 (TW) and the following formula 7 and formula 8 are performed (step 160).

Next, a control signal is output to the blower driving circuit 8 so as to be the blower control voltage VA determined in step 130 (step 170). Next, a control signal is output to the servomotors 17 and 18 so that the A / M opening degree SW (Dr) and the A / M opening degree SW (Pa) determined in step 160 are obtained (step 180). Next, a control signal is output to the servomotors 28, 29, and 39 so that the air outlet mode determined in step 140 is set (step 190). Next, a control signal is output to the louver motors 43a, 46a so that the blowing direction, blowing position, and swing range determined in step 150 are obtained (step 200).
Next, the control process of step 150 will be described based on the flowchart of FIG. First, it is determined whether or not the outlet mode is the FACE mode or the B / L mode (step 301). When the determination result is NO, the direction of the louver is such that the side louvers 43 and 46 are directed toward the neighboring side windows for the purpose of defogging the side windows and cutting cold radiation by blowing air-conditioned air to the side windows. Is determined (step 302). Thereafter, the control process of step 150 is exited.

但し、ＴＲは内気温度センサ９１にて検知した内気温度を表し、Ｔｓｅｔ（Ｄｒ）、Ｔｓｅｔ（Ｐａ）はＤｒ側、Ｐａ側温度設定スイッチ６４、６５にて設定されたＤｒ側、Ｐａ側設定温度を表す。 If the decision result in the step 301 is YES, it is judged whether or not the timer is being counted (step 303). If this determination result is YES, the control process proceeds to step 314.
Further, if the determination result in step 303 is NO, it is determined whether or not the cool-down is being performed during cooling. That is, it is determined whether or not the following expressions 9 and 10 are satisfied (step 304).

However, TR represents the inside air temperature detected by the inside air temperature sensor 91, and Tset (Dr) and Tset (Pa) are the Dr side and Pa side set temperatures set by the Dr side and Pa side temperature setting switches 64 and 65, respectively. Represents.

If the determination result in step 304 is YES, that is, if the engine is being cooled down, the center louvers 43 and 46 are directed toward the occupant's neck A (see FIG. 24) in the Dr side and Pa side air conditioning zones (fixed). The louver direction is determined as follows, and the louver direction is determined so that the side louvers 43 and 46 are directed (fixed) near the occupant's neck B (see FIG. 24) in the Dr side and Pa side air conditioning zones (step) 305). As a result, the conditioned air is concentrated and blown out to the passengers in the Dr side and Pa side air conditioning zones (local cooling).
Next, it is determined whether or not the occupant has moved the center louvers 43 and 46 to C, for example (step 306). If the determination result is NO, the reference position (target position) of the swing range of the center louvers 43 and 46 is set to the previous position (A) (step 307). If the determination result in step 306 is YES, the reference position (target position) of the swing range of the center louvers 43 and 46 is changed (corrected) to the current position (C) (blowing state correcting means: step 308). .
Next, it is determined whether or not the occupant has moved the side louvers 43 and 46 to D, for example (step 309). If the determination result is NO, the reference position (target position) of the swing range of the side louvers 43 and 46 is set to the previous position (B) (step 310). When the determination result in step 309 is YES, the reference position (target position) of the swing range of the side louvers 43 and 46 is changed (corrected) to the current position (D) (blowing state correcting means: step 311). .

Next, it is determined whether or not the louver has been operated by the occupant (step 312). If this determination is NO, the control process of step 150 is exited.
If the determination result in step 312 is YES, the timer starts counting, and the swing of the operated center louvers 43 and 46 or side louvers 43 and 46 is shown in FIGS. 25 (a) to 25 (c). Until the predetermined time elapses (blowing state correction means: step 313). Here, the blowing temperature on the horizontal axis of the graph of FIG. 25 (a) is the target blowing temperature, the cooling water temperature, the A / M opening degree, or the detected values of the Dr side and Pa side blowing temperature sensors 94a and 94b. Calculated from the post-evaporation temperature. By adding a correction time corresponding to the inside air temperature and the amount of solar radiation to the reference stop time obtained in FIG. 25 (a), a predetermined time more suitable for the occupant's temperature sensation can be calculated.
The corrected stop time is 30 minutes at the maximum and 30 seconds at the minimum. The predetermined time is set longer when the air-conditioning air blowing direction is toward the occupant and the air-conditioning heat load (for example, solar radiation intensity) is larger, and the air-conditioning air blowing direction is the direction to remove the occupant. The shorter the heat load (for example, solar radiation intensity), the shorter the setting.

Next, it is determined whether or not the timer has been counted. That is, it is determined whether or not a predetermined time has elapsed (step 314). If this determination is NO, the control process of step 150 is exited.
If the decision result in the step 314 is YES, the timer count is ended and the restriction in the step 313 is released (step 315). Thereafter, the control process of step 150 is exited.
Further, when the determination result in step 304 is NO, that is, when not being cooled down during cooling or during heating, the center and side louvers 43 and 46 are moved to the air conditioning heat centering on the reference position of the swing range. Decide to swing in the swing range corresponding to the load. Here, in the initial setting, the reference position of the center louver is near the occupant's neck A (see FIG. 24) in the Dr side and Pa side air conditioning zones, and the reference position of the side louver is the occupant in the Dr side and Pa side air conditioning zones. It is near the neck B (see FIG. 24).

Then, based on the solar radiation direction, solar radiation amount (solar radiation intensity) in the Dr side and Pa side air conditioning zones, and the characteristic diagram of FIG. 26A, the swing range (swing range) θ of the center and side louvers 43 and 46 is obtained. (Dr) and θ (Pa) are determined. Then, based on the swing range of the center and side louvers 43 and 46, the characteristic diagram of FIG. 26 (b), and the following equations (12) and (13), the target swing range (target swing range) shown in FIG. ) Θ (Dr) and θ (Pa) are determined (step 316).

Next, based on the target swing ranges θ (Dr) and θ (Pa) of the center and side louvers 43 and 46 obtained in the above step 316 and the characteristic diagrams of FIGS. 28 and 29, each center, side louver 43, 46 is calculated (step 317). For example, as the swing range of the center and side louvers 43 and 46 is wider, the swing speed of the center and side louvers 43 and 46 is increased to make the swing cycle constant.
Next, it is determined whether or not an occupant has operated during the swing of the center louvers 43 and 46 (step 318). Here, as shown in FIGS. 30A and 30B, the presence / absence of the occupant operation is determined based on the operating speed of the louver motors 43a and 46a (louver swing speed) and the moving speed of the potentiometers 97 and 98. It may be obtained from the difference between them, or it may be determined that the detection values of the potentiometers 97 and 98 have moved outside the current swing range. When there is a switch for moving the louver, the input of the switch may be detected.

If the determination result in step 318 is NO, the reference position of the swing range of the center louvers 43 and 46 is set to the previous position (step 319). If the determination result in step 318 is YES, the reference position of the swing range of the center louvers 43 and 46 is changed (corrected) to the current position (blowing state correcting means: step 320).
Next, it is determined whether or not an occupant has operated during the swing of the side louvers 43 and 46 (step 321). If the determination result is NO, the reference position of the swing range of the side louvers 43 and 46 is set to the previous position (step 322). If the determination result in step 321 is YES, the reference position of the swing range of the side louvers 43 and 46 is changed (corrected) to the current position (blowing state correcting means: step 323). Thereafter, the control process proceeds to step 312.

[Effects of Second Embodiment]
As described above, in the vehicle air conditioner according to the present embodiment, the cool-down is finished, the air-conditioning state in the passenger compartment approaches the steady state, and the center and the side louvers 43 and 46 are fixed in a state in which they face the occupant direction. When the center and side louvers 43 and 46 are swung in a predetermined swing range from the local cooling, if the occupant pulls back the center and side louvers 43 and 46 that are going to swing in their own direction, the predetermined changes depending on the air conditioning heat load. Until the time elapses, the center and side louvers 43 and 46 are fixed in a state in which they face the occupant direction.

  On the contrary, when the occupant feels cold, if the direction of the swinging center and the side louvers 43 and 46 is removed from his / her direction, the center is similarly changed until a predetermined time changing according to the air-conditioning heat load elapses. The direction of the side louvers 43 and 46 is directed to the direction of removing the occupant. Alternatively, if the direction of the swinging center and side louvers 43 and 46 are directed toward the occupant of the rear seat in consideration of the occupant of the rear seat, the center is similarly changed until a predetermined time that varies depending on the air conditioning heat load elapses. The directions of the side louvers 43 and 46 are directed toward the occupant direction of the rear seat (the direction of removing the occupant of the front seat). Then, by storing the passenger's request as described above and performing automatic swing control so as to swing around the position moved by the passenger next time, the blowing state desired by the passenger can be reflected in the control. .

[Third Embodiment]
FIGS. 31 and 32 show a third embodiment of the present invention. FIGS. 31 (a) and 31 (b) show a case where the occupant operates the louver during a swing, and FIG. 32 shows a louver control. It is the flowchart which showed a part of calculation.

  Here, as in step 320 of the second embodiment, when the reference position of the swing range of the center louvers 43 and 46 is changed (corrected) to the current position, the same swing range (for example, before the occupant moves the louver) (for example, If 70 degrees: 1 round trip 10 seconds), it is conceivable that the conditioned air is blown out to the adjacent air-conditioning zone even during the left and right independent control (step 324). When this determination result is YES, as shown in FIG. 31 (b), it enters the adjacent air-conditioning zone beyond the restriction point that restricts the blowing direction of the conditioned air to the adjacent air-conditioning zone, and again enters the restriction point. Until the time required for returning to (e.g., 4.3 seconds) has elapsed (step 325). As a result, the swing range is narrower than before the occupant moves the louver (for example, 40 °: 10 seconds for one round trip), and the occupant request in the Dr-side air conditioning zone that does not want to hit the conditioned air is desired to maintain the left and right independent control. The passenger's request in the side air conditioning zone can be satisfied at the same time.

[Fourth Embodiment]
FIG. 33 shows the fourth embodiment of the present invention, and is a view showing the Dr side, Pa side center grille, and air conditioner operation panel.

In the present embodiment, the air-conditioning air blowing state (center, side louver 43) blown out from each FACE outlet 21, 22, 31, 32 in the Dr-side air conditioning zone and the Pa-side air conditioning zone is integrated with the air-conditioner operation panel 51. , 46 swing state), a louver operation (SWINGSW) panel 100 is provided.
The louver operation panel 100 includes a MATCH switch 101, a Dr switch 102, a Pa switch 103, and a swing mode changeover switch 104. The swing mode changeover switch 104 is STOP (swing stop), AUTO (auto swing), Rr, U-DSWING (vertical swing), R- like the swing mode changeover switches 69 and 73 of the second embodiment. This is a rotary switch having each switching position of LSSWING (left and right direction swing).

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

[Fifth Embodiment]
34 and 35 show a fifth embodiment of the present invention. FIG. 34 is a front view showing an instrument panel of a vehicle, and FIG. 35 is a cross-sectional view showing a face duct of an air conditioning unit.

In this embodiment, the partition plate 14 in the air conditioning duct 2 of the second embodiment is eliminated. A wide flow FACE outlet 161 that opens on the most downstream side of the face duct 160 connected to the air downstream end of the air conditioning duct 2 is provided as a front seat side FACE outlet. The wide-flow FACE outlet 161 has a Dr-side and Pa-side center FACE outlet 162, 163 opened at the front center of the instrument panel 40, and both sides of the instrument panel 40 in the vehicle width direction, that is, in the vicinity of the side window of the vehicle. It consists of Dr-side and Pa-side side FACE outlets 164 and 165 that open, and Dr-side and Pa-side middle FACE outlets 166 and 167 that open between these FACE outlets. 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.
A FACE door 171 for opening and closing each of the FACE outlets 162 to 167 is rotatably attached to the face duct 160, and Dr for opening and closing the Dr side, middle FACE outlets 164 and 166. A side middle FACE door 172 is rotatably attached, and a Pa side middle FACE door 173 for opening and closing the Pa side side and the middle FACE outlets 165 and 167 is rotatably attached. The Dr-side and Pa-side middle FACE doors 172 and 173 correspond to the blowing state variable means of the present invention, and according to the opening degree, the Dr and Pa-side side FACE outlets 164 and 165 and the Dr and Pa-side middle The blowing state of the conditioned air blown out from the FACE outlets 166 and 167 into each air-conditioned area (for example, the wide blowing mode and the spot blowing mode) is changed.

In this embodiment, the FACE door 171 is moved to the open side by an actuator such as a servo motor, and the Dr side and Pa side middle FACE doors 172 and 173 are moved to the closed side by an actuator such as a servo motor. Thereby, by opening the Dr side, Pa side center FACE outlets 162, 163 and Dr side, Pa side side FACE outlets 164, 165, and closing the Dr side, Pa side middle FACE outlets 166, 167, By reducing the opening area of the wide flow FACE outlet 161, the blowout range of the conditioned air blown from the wide flow FACE outlet 161 is reduced, and the conditioned air is locally applied to a part of the occupant's body in the air conditioning area. Blow out (spot blowing mode).
Further, 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 intermediate positions. By opening the Dr side, Pa side center FACE outlets 162, 163, Dr side, Pa side side FACE outlets 164, 165 and the Dr side, Pa side middle FACE outlets 166, 167, the wide flow FACE is thereby opened. By increasing the opening area of the blower outlet 161, the blowout range of the conditioned air blown out from the wide flow FACE blower outlet 161 is increased, and the conditioned air is blown out diffusely into the conditioned area (wide blowout mode).
In addition, a FACE door may be added in the face duct 160 to perform finer control of the air distribution amount, or one or more partition plates may be placed in the air conditioning duct 2 and the face duct 160. The air distribution amount for each occupant in the Dr-side and Pa-side air-conditioning areas may be changed by disposing a blower for each air passage and varying the amount of air blown by each blower.

[Sixth Embodiment]
FIG. 36 and FIG. 37 show a sixth embodiment of the present invention, and FIG. 36 is a view showing a blowing state variable device.

The blowing state varying device according to the present embodiment includes a plurality of louvers 201, a louver motor 202, a link plate 203, a link lever 204, and the like. The louver 201 is provided so as to be rotatable about a rotating shaft 207 that is rotatably supported by a FACE grill 206 that forms the FACE outlet 205, and protrudes upward in the figure at the upper end on the opposite side of the rotating shaft 207. 208.
The louver motor 202 has a gear 209 fixed to the outer periphery of the tip of an output shaft (not shown). The link plate 203 is disposed on an upper portion of the FACE grill 206 and includes a rack 210 that meshes with the gear 209 of the louver motor 202 at one end thereof, and is provided to be slidable forward and backward of the FACE grill 206 as the output shaft rotates. ing. In addition, a plurality of link grooves 211 (the same as the number of louvers 201) are formed in the link plate 203.
The link lever 204 transmits the movement of the link plate 203 to the louver 201. The link lever 204 is provided in the same number as the louver 201. The pin 212 fitted in the link groove 211 of the link plate 203 and the pin provided in the louver 201. A guide groove 213 into which 208 is fitted is formed.

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, the louver 201 of each louver 201 is connected via the link lever 204 as shown in FIG. Each is driven to a position in which the direction faces the occupant direction. Accordingly, the conditioned air is intensively blown out toward the passenger from the center FACE grill 206 and the side FACE grill 206 (concentration mode).
On the other hand, when the output shaft of the louver motor 202 reversely rotates and the link plate 203 moves rearward on the FACE grill 206, the direction of each louver 201 is changed via each link lever 204 as shown in FIG. It is driven to spread outward. As a result, the conditioned air blown from the center FACE grill 206 and the side FACE grill 206 is diffused (diffusion mode).
According to this blowing state variable device, the conditioned air can be directed to the occupant intensively by selecting the concentration mode. In addition, if the diffusion mode is selected, it is possible to apply the conditioned air widely in the air-conditioning zone and to reduce the air distribution amount of the conditioned air to the occupant.

[Seventh Embodiment]
FIG. 38 shows a seventh embodiment of the present invention, and is a view showing a blowing state variable device. The blowing state varying device according to the present embodiment includes a case 221, a drum 222 rotatably attached to the case 221, a louver 223 attached to the drum 222, and the like. In this blowing state varying device, the direction of the louver 223 is changed integrally with the drum 222 by rotating the drum 222 with respect to the case 221, and the blowing direction of the conditioned air can be changed.

[Eighth Embodiment]
39 to 43 show an eighth embodiment of the present invention, and FIG. 39 and FIG. 40 (a) are views showing a blowing state variable device.
The blowing state varying device of the present embodiment includes a louver body 301 provided in an elongated cylindrical state, and a louver motor 302 that rotationally drives the louver body 301. In the louver main body 301, as shown in FIG. 40 (b), an air passage 301a having an arc shape with a constant width is formed at a position eccentric from the center of rotation.
For example, as shown in FIG. 41, this blowing state variable device can be used by being attached to an air outlet 304 (see FIG. 40A) of a vehicle 303 such as a one-box car.

The louver main body 301 is rotationally driven by the louver motor 302, so that the blowing direction of the conditioned air blown from the air blower outlet 304 can be selected in an arbitrary vertical direction. For example, at the position shown in FIG. 42A, the conditioned air can be blown mainly toward the upper body of the passenger. In the position shown in FIG. 42 (b), the conditioned air can be blown mainly toward the lower half of the occupant. And in the position shown in FIG.42 (c), an air conditioned wind can be blown out toward the ceiling direction of the vehicle 303. FIG. Further, the air outlet 304 can be closed at the position shown in FIG.
When the louver body 301 is swung, as shown in FIGS. 43 (a) to 43 (c), the conditioned air blown from the air outlet 304 according to the swing width of the louver body 301 is changed to a predetermined value. Can blow out in the swing range.

[Ninth Embodiment]
44 to 47 show a ninth embodiment of the present invention, and FIG. 44 is a view showing a blowing state varying device.
The blowing state variable device of this embodiment can change the blowing area of the conditioned air in the vehicle width direction, and includes a rotary valve 309 that is rotatably attached to a case 308 that forms a FACE outlet 307. The case 308 is supplied with conditioned air from the two air ducts 310 connected to the back surface. A lattice-shaped FACE grill 311 is attached to the front surface of the case 308.
The rotational position of the rotary valve 309 can be adjusted by an adjustment dial 312 attached to both ends and a valve motor (not shown). For example, FIG. 45 (a) to FIG. 45 (c) and FIG. 46 (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. Further, as shown in FIGS. 47A to 47E, it is possible to obtain various blowing states by changing the shape of the rotary valve 309. In addition, this rotary valve 309 can also be used as the louver body 301 of the eighth embodiment.

[Other Embodiments]
In the present embodiment, an example in which the present invention is applied to a vehicle air conditioner mounted on a vehicle 303 or 400 such as a one-box car has been described. However, the present invention is mounted on a large vehicle such as a bus vehicle or a railway vehicle. You may use for the air conditioner for large vehicles.
In the present embodiment, as the blowing state variable means for changing the blowing state of the conditioned air blown from the outlet, the blowing direction varying means or the blowing air volume varying means for changing the blowing direction or the air distribution amount (blowing air amount) of the conditioned air is provided. Although the used example was demonstrated, you may use the blowing position variable means which changes the blowing position (blowing height, blowing width) of an air-conditioning wind as a blowing state varying means.
In the present embodiment, the configuration is such that the conditioned air is blown out from the respective FACE outlets 21, 22, 31, 32 of the air conditioning duct 2 by rotating one blower 4, but the two blowers are rotated. It is possible to change the air distribution amount for blowing the conditioned air from the Dr-side and Pa-side FACE outlet of the air-conditioning duct 2 into the vehicle interior, and rotate the number of blowers corresponding to the number of FACE outlets. By doing so, you may comprise so that the air distribution amount (blowing air amount) which blows off air-conditioning air from each FACE blower outlet of the air-conditioning duct 2 into a vehicle interior can be changed. Further, the air volume may be adjusted independently for each FACE outlet, or for each one side or the other side outlet.

In the present embodiment, the conditioned air (mainly hot air) is blown out from the Dr side side FACE outlet 22 and the Pa side FACE outlet 32 even when the outlet mode is the FOOT mode or the F / D mode. Only when the outlet mode is the FACE mode or the B / L mode, the conditioned air may be blown from the Dr side side FACE outlet 22 and the Pa side FACE outlet 32.
In the present embodiment, the Dr side, Pa side center grille 41, Dr side, and Pa side grille 42 are fixed to the instrument panel 40, but each center and side grille are supported so as to be rotatable in the left-right direction. You may attach to a storage member, and you may attach to a storage member in the state where each center and the side grille were supported so that rotation up and down was possible. In this case, the grill main body may be swung as the blowing direction changing means or the blowing state changing means.

In this embodiment, each FACE outlet is provided with both a center that swings in the left-right direction, a side louver 43, a center that swings in the vertical direction, and a side louver 46 as the louver. Alternatively, only one of the center that swings in the horizontal direction, the side louver 43, the center that swings in the vertical direction, and the side louver 46 may be provided.
In the present embodiment, the solar radiation sensor 93 having the solar radiation intensity detecting means, the solar radiation direction detecting means, and the solar radiation height detecting means is provided as the air conditioning load detecting means. However, a solar radiation sensor having at least a solar radiation intensity detecting means may be provided. In this case, the solar radiation intensity signal from the solar radiation sensor is input by the microcomputer to calculate the solar radiation direction and the solar radiation altitude (sun elevation angle). In addition, when the solar navigation microcomputer stores the solar altitude at that date and the solar radiation direction relative to the current position of the vehicle, the output signal of the car navigation system is used as the solar sensor signal to the air conditioner ECU. You may make it read.

In this embodiment, a DC servo motor is used as an actuator for driving the louvers 43 and 46. However, a stepping motor may be used as an actuator for driving the louvers 43 and 46. In this case, since the amount of movement of the louvers 43 and 46 can be calculated by counting the number of pulses from the reference position, it can be used as louver position detecting means (blowing state detecting means), and the potentiometers 97 and 98 can be used. It is not necessary to provide it. In this case, it is desirable that the occupant cannot move the louvers 43 and 46 other than the switch.
It is desirable that each function of the present embodiment allows the occupant to select ON or OFF by operating a multi-display or the like.

  In this embodiment, the auto louver control is performed so that the swing range of the louvers 43 and 46 becomes a constant swing range. However, the smaller the cooling heat load in the air conditioning zone, the smaller the louver centered on the center position of the auto swing. The target swing ranges (swing ranges) 43 and 46 may be set wide. Further, the larger the cooling heat load in the air-conditioning zone, the narrower the target swing range (swing range) of the louvers 43 and 46 around the center position of the auto swing may be set.

In this embodiment, a plurality of RrFACE grills 49 are fixed to both sides of the vehicle 400 in the vehicle width direction on the middle seat side and the rear seat side of the ceiling of the vehicle 400, but each grille is supported so as to be rotatable in the left-right direction. You may attach to a storage member in the state, and you may attach to a storage member in the state where each grille was supported so that rotation up and down was possible. In this case, the grill body may be swung as the blowing state variable means.
In the present embodiment, the louver 43 that swings in a single character shape in the left-right direction and the louver 46 that swings in a single character shape in the vertical direction are provided, but either one may be used. Moreover, you may provide the louver fin which swings in an 8-character type, an infinity character shape, or x character shape as a blowing state variable means.

In the present embodiment, the stop position command means instructs the louvers 43 and 46 to stop at the pre-stored initial setting position (auto stop position), and when the correction command is input from the stop position correction means, the auto stop position However, manual setting means such as a manual switch for instructing the louvers 43 and 46 to stop at the manual operation position (auto stop position) determined by the manual operation of the occupant is used. May be used. As the manual setting means, an on / off switch that instructs the louvers 43 and 46 to stop swinging may be used, or the louvers 43 and 46 may directly touch the louvers 43 and 46 to stop the swing.
In the present embodiment, as the center position command means, the louvers 43 and 46 are instructed to swing around the pre-stored initial setting position (auto swing center position), and a correction command is issued from the center position correction means. Center position storage means (for example, RAM) for rewriting the center position of the auto swing when input is used, but the louvers 43 and 46 are centered on the manual operation position (auto swing center position) determined by the manual operation of the occupant. Manual setting means such as a manual switch for instructing to swing can be used. Note that as the manual setting means, an on / off switch for instructing the swing of the louvers 43 and 46 may be used, or the louvers 43 and 46 may be swung by directly touching the louvers 43 and 46.

1 is a configuration diagram illustrating an overall configuration of a vehicle air conditioner (first embodiment). FIG. It is the schematic which showed the vehicle interior of the vehicle carrying a vehicle air conditioner (1st Embodiment). It is the front view which showed the instrument panel of the vehicle (1st Embodiment). It is the schematic which showed the whole structure of the blowing state variable apparatus (1st Embodiment). It is the schematic which showed the structure of the louver horizontal direction rocking | fluctuation mechanism (1st Embodiment). It is the schematic which showed the structure of the louver vertical direction rocking | fluctuation mechanism (1st Embodiment). It is the flowchart which showed an example of the control program of air-conditioner ECU (1st Embodiment). It is a characteristic view showing the relationship between TAO (Fr) and inside / outside air mode (1st Embodiment). It is a characteristic view showing the relationship between TAO (Fr) and a blower outlet mode (1st Embodiment). It is a characteristic view showing the relationship between TAO (Fr) and a blower control voltage (1st Embodiment). It is a characteristic view showing the relationship between TAO (Rr) and a blower outlet mode (1st Embodiment). It is a characteristic view showing the relationship between TAO (Rr) and a blower control voltage (1st Embodiment). It is the flowchart which showed swing louver control determination (1st Embodiment). It is the flowchart which showed swing louver control determination (1st Embodiment). It is the flowchart which showed swing louver control determination (1st Embodiment). It is explanatory drawing which showed the use condition of the blowing state variable apparatus of a middle seat side and a rear seat side (1st Embodiment). (A) is explanatory drawing which showed the blowing direction of the conditioned air at the time of initialization, and the swing range of conditioned air, (b) is explanatory drawing which showed the blowing direction of the conditioned air after seat movement, and the swing range of conditioned air (First embodiment). It is a block diagram which showed the whole structure of the vehicle air conditioner (2nd Embodiment). It is the front view which showed the air-conditioner operation panel (2nd Embodiment). It is the flowchart which showed an example of the control program of air-conditioner ECU (2nd Embodiment). It is a characteristic view showing the relationship between TAO (Dr), TAO (Pa), and a blower control voltage (2nd Embodiment). It is a characteristic view showing the relationship between TAO (Dr), TAO (Pa), and a blower outlet mode (2nd Embodiment). It is the flowchart which showed the louver control calculation (2nd Embodiment). It is explanatory drawing which showed the state which the passenger | crew operated the louver (2nd Embodiment). (A) is a graph showing the relationship between the blowing temperature and the reference stop time, (b) is a graph showing the relationship between the inside air temperature and the correction time, and (c) is a graph showing the relationship between the amount of solar radiation and the correction time. (Second embodiment). (A) is a characteristic diagram showing the relationship between the solar radiation direction, solar radiation intensity, and a swing range, (b) is a graph showing the relationship between inside air temperature and a swing range (2nd Embodiment). It is explanatory drawing which showed the target swing range (2nd Embodiment). It is a graph showing the relationship between the swing range on the Dr side and the swing cycle (second embodiment). It is a graph showing the relationship between the rocking | swiveling range by Pa side, and a rocking | fluctuation period (2nd Embodiment). (A), (b) is explanatory drawing which showed the state which the passenger | crew operated the louver during the swing (2nd Embodiment). (A), (b) is explanatory drawing which showed the state which the passenger | crew operated the louver during the swing (3rd Embodiment). It is the flowchart which showed a part of louver control calculation (3rd Embodiment). It is the front view which showed the air-conditioner operation panel (4th Embodiment). It is the front view which showed the instrument panel of the vehicle (5th Embodiment). It is sectional drawing which showed the face duct of the air conditioning unit (5th Embodiment). It is the perspective view which showed the blowing state variable apparatus (6th Embodiment). (A), (b) is the operation | movement explanatory drawing which showed the blowing state variable apparatus (6th Embodiment). It is sectional drawing which showed the blowing state variable apparatus (7th Embodiment). It is the perspective view which showed the blowing state variable apparatus (8th Embodiment). (A) is sectional drawing which showed the blowing state variable apparatus, (b) is sectional drawing which showed the louver main body (8th Embodiment). It is a schematic diagram of the vehicle which showed the attachment position of the blowing state variable apparatus (8th Embodiment). (A)-(d) is operation | movement explanatory drawing of a blowing state variable apparatus (8th Embodiment). (A)-(c) is the schematic diagram which showed the swing range of the conditioned air (8th Embodiment). It is a disassembled perspective view which showed the blowing state variable apparatus (9th Embodiment). (A)-(c) is operation | movement explanatory drawing of a blowing state variable apparatus (9th Embodiment). (A)-(c) is operation | movement explanatory drawing of a blowing state variable apparatus (9th Embodiment). (A)-(e) is the perspective view which showed the modification of the rotary valve (9th Embodiment).

Explanation of symbols

43 louver, center louver, side louver
46 louvers, center louvers, side louvers (outflow state variable means)
50 Air conditioner ECU (Blowing state control means)
93 Insolation sensor (Insolation detection means)
97 Potentiometer (Blowout state detection means)
98 Potentiometer (Blowout state detection means)
31b Middle seat FACE outlet (air outlet)
32b Rear seat side FACE outlet (air outlet)
43a Louver motor (actuator)
46a Louver motor (actuator)
64b Second temperature setting switch (temperature setting means)
91b Second inside air temperature sensor (inside air temperature detecting means)

Claims (9)

(A) an air-conditioning duct having an air outlet for blowing air-conditioned air toward the air-conditioning zone in the vehicle interior;
(B) a blowing state variable means capable of changing a blowing state of the conditioned air blown from the blowing port;
(C) an actuator for driving the blowing state variable means;
(D) a blowing state detecting means for detecting a current position of the blowing state variable means and detecting a blowing state of the conditioned air;
(E) center position command means for commanding the blowing state variable means to swing around a predetermined position;
(F) target swing range determining means for determining a target swing range of the blowing state variable means centered on the center position commanded by the center position command means;
(G) blowout state control means for controlling the operating state of the actuator so that the blowout state variable means swings within the target swing range determined by the target swing range determination means;
(H) target position determining means for determining a target position of the blowing state variable means predicted from the operating speed of the actuator;
(I) When the blowing state varying means is swinging, the current position of the blowing state varying means detected by the blowing state detecting means is different from the target position determined by the target position determining means. In case,
A center position that is output to the center position command means so as to correct the center position of the target swing range of the blowing state variable means to or near the current position of the blowing state variable means detected by the blowing state detection means An air conditioner for a vehicle comprising correction means. In the vehicle air conditioner according to claim 1,
The center position command means instructs the blowing state varying means to swing around the preset initial position stored in advance, and when the correction command is input from the center position correction means, A vehicle air conditioner, characterized by being a center position storage means for rewriting the center position of the target swing range of the state variable means. In the vehicle air conditioner according to claim 1,
The vehicle center air conditioner is characterized in that the center position command means is a manual setting means for commanding the blowing state varying means to swing around a manual operation position determined by a manual operation of an occupant. . In the vehicle air conditioner according to any one of claims 1 to 3,
Air-conditioning state detection means for detecting the air-conditioning state in the passenger compartment;
Air conditioning state setting means for setting the air conditioning state of the passenger compartment to a desired air conditioning state,
When the air-conditioning state detected by the air-conditioning state detection unit and the target air-conditioning state set by the air-conditioning state setting unit are greatly different, the blow-out state control means An air conditioner for a vehicle that controls an operating state of the actuator so as to stop at a center position of a swing range. The vehicle air conditioner according to claim 4,
The air conditioning state detecting means is a solar radiation amount detecting means for detecting an amount of solar radiation entering the vehicle interior, and the blowing state control means is configured to detect when the solar radiation amount detected by the solar radiation amount detecting means is equal to or greater than a predetermined solar radiation amount. In addition, the operating state of the actuator is controlled so that the swinging motion of the blowing state varying means stops at the center position of the target swinging range. In the vehicle air conditioner according to claim 4 or 5,
The air-conditioning state detecting means is an inside air temperature detecting means for detecting the air temperature in the passenger compartment,
The air conditioning state setting means is a temperature setting means for setting the temperature in the vehicle interior to a desired temperature, and the blowing state control means is set by the inside air temperature detected by the inside air temperature detecting means and the temperature setting means. An air conditioner for a vehicle that controls the operating state of the actuator so that the swinging motion of the blowing state varying means stops at the center position of the target swinging range when the set temperature differs greatly. . (A) an air-conditioning duct having an air outlet for blowing air-conditioned air toward the air-conditioning zone in the vehicle interior;
(B) a blowing state variable means capable of changing a blowing state of the conditioned air blown from the blowing port;
(C) an actuator for driving the blowing state variable means;
(D) blowout state control means for controlling the operating state of the actuator so that the blowout state varying means swings within a predetermined swing range;
(E) an occupant operation determination unit that determines whether or not an occupant has operated the blowing state variable unit; and (f) a blowing state that detects the current state of the blowing state variable unit and detects the blowing state of the conditioned air. Detection means;
(G) When it is determined by the occupant operation determination means that the occupant has operated the blowing state variable means,
A vehicle air conditioner comprising: a blowing state correcting unit that stops the swinging motion of the blowing state varying unit at or near the current position of the blowing state varying unit detected by the blowing state detecting unit until a predetermined time elapses. apparatus. The vehicle air conditioner according to claim 7,
The occupant operation determination means determines that the occupant has operated the blowing state variable means when detecting that the blowing state variable means has moved beyond the movement amount expected from the operating speed of the actuator. A vehicle air conditioner. The vehicle air conditioner according to claim 7,
The occupant operation determining means determines that the occupant has operated the blowing state varying means when detecting that the blowing state varying means has moved out of the predetermined swing range. Air conditioner.

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