JP2005112036A - Swing louver control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply set a swing pattern which is an operation pattern of a swing louver. <P>SOLUTION: A swing pattern is a time diagram of a change of a louver opening which determines the blow-out direction of air in every two or more swing louvers mounted in an instrument board in a cabin. The swing pattern for one swing period is easily set only by setting a reference count target value nk depending on the passage of time determining the point of inflection of operation and the louver opening target value θk at the time at every point of inflection of operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a swing louver control device that swing-controls a louver that adjusts an air blowing direction at an air outlet of a vehicle air conditioner.

In swing louver control of a vehicle air conditioner in recent years, there is one that improves passenger comfort by switching not only an operation that repeats only a certain swing pattern but also a plurality of swing patterns. In particular, in the conventional technique disclosed in Patent Document 1, a swing pattern that is specified by the passenger's preference such as a feeling of warmth is generated in the microcomputer. Here, the swing pattern refers to a temporal change characteristic of the louver opening degree (louver direction) as an operation pattern of the swing louver.
JP 2002-362142 A

  In this prior art, the swing pattern is changed, for example, down control in which the direction of the louver is changed from the direction in which the occupant is located to the direction in which no occupant is present, the upward control in which the direction from the direction in which no occupant is present to the direction in which the occupant is located The control signal of the motor that drives the louver in each direction is created in each control process, divided into stop control in which no change occurs. When the louver is swung in a series of swing patterns, for example, descending control at a predetermined swing speed to a target position in the non-occupant direction, stop control at a predetermined position for a predetermined time, and predetermined swing speed to the target position in the occupant direction Therefore, it was necessary to set the uplink control and so on.

  Thus, in the prior art, in order to change the swing pattern appropriately in the microcomputer that performs air conditioning control during the operation of the air conditioner, the control is switched for each operation direction of the louver, and the target parameter at the time of switching is changed. Therefore, when switching between a plurality of different swing patterns according to the passenger's preference or according to changes in the operating condition of the air conditioner, there is a problem that the control becomes complicated.

  An object of this invention is to provide the swing louver control apparatus which can set easily the swing pattern which is an operation pattern of a swing louver in view of the said point.

  In order to achieve the above object, according to a first aspect of the present invention, there is provided a swing louver control device for swing-controlling a louver (10) for adjusting an air blowing direction at an air outlet of a vehicle air conditioner, wherein the louver is opened. Louver driving means (13, 14, 15) for changing the degree, and control means (31) for giving a driving signal for setting the louver opening to a desired value to the louver driving means (13, 14, 15). The control means (31) includes a reference count means (31) for counting a reference count value representing the passage of time, a reference count target value and a louver opening target value that represent inflection points of changes in the louver opening in advance. The operation inflection point information storage means (31) storing the operation inflection point information, and the drive signal output means (31) for outputting the drive signal based on the counted reference count value and the operation inflection point information. , Characterized in that it comprises a.

  According to the present invention, since the swing pattern is set based on the operation inflection point information determined by the reference count target value representing the passage of time and the louver opening target value at the reference count target value, the swing pattern can be easily set and changed. Can do.

  In addition, as described in claim 2, the drive signal output means (31) drives the drive signal so that the current value of the louver opening approaches the louver opening target value until the reference count value reaches the reference count target value. Can be output.

  Further, as described in claim 3, the control means (31) includes louver opening detection means (16) for detecting the current opening of the louver, and the operation inflection point information storage means (31) includes: The inflection point information for one cycle including a plurality of inflection points including a start point and an end point is provided, and the reference count target value that is temporally next to the reference count value in accordance with the counted reference count value And the driving signal output means (31) compares the detected louver opening with the louver opening target value of the next operating inflection point information based on the comparison result. The driving direction of the louver of the louver driving means can be determined and a driving signal corresponding to the driving direction can be output.

  Further, as described in claim 4, the reference counting means (31) sequentially increases the reference count value from the minimum reference count value as time passes, and when the reference count value reaches the maximum reference count, The one-cycle operation for resetting the reference count value to the minimum reference count value is repeated, and the operation inflection point information storage means (31) stores the operation inflection point information as being synchronized with the repetition operation cycle of the reference count means. be able to.

  As described in claim 5, the operation inflection point information storage means (31) changes at least one of the reference count target value and the louver opening target value of the stored operation inflection point information. If the pattern table changing means (31, 38) is provided, the louver swing pattern can be changed as appropriate.

  The pattern table changing means (31, 38) sets the reference count target value of at least one of the adjacent operation inflection points of the adjacent operation inflection points having the same louver opening target value as described in claim 6. If changed, the swing stop time during which the louver opening does not change can be changed.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating an overall configuration of a vehicle air conditioner according to the present embodiment. Although a plurality of swing louvers 10 are provided in the present embodiment, FIG. 1 shows one swing louver 10 and its drive mechanism, and the other swing louvers 10 show only the drive mechanism.

  An inside / outside air switching damper 22 a is rotatably installed on the most upstream side of the air flow of the air conditioning unit 20. The inside / outside air switching damper 22a is disposed in a portion where the outside air introduction port and the inside air introduction port are separated, and is driven by an actuator (not shown) to switch between the inside air and the outside air of the air introduced into the air conditioning unit 20, or between the inside air and the outside air. Adjust the mixing ratio.

  The blower motor 24 and the fan 23 fixed thereto constitute a blower, which sucks air into the air conditioning unit 20 and blows it to the downstream side of the unit 20, and an evaporator 25 and a heater core 26 are provided downstream of the fan 23. It has been.

  The evaporator 25 as a cooling heat exchanger is combined with a compressor or the like (not shown) to constitute a refrigeration cycle, and cools the air passing therethrough. The heater core 26 as a heat exchanger for heating circulates inside the engine coolant (not shown) and heats air passing through the heater core 26.

  On the upstream side of the heater core 26, an air mix damper 22b as a blown air temperature adjusting means is rotatably provided, and the opening degree of the air mix damper 22b is adjusted by being driven by an actuator (not shown). The ratio of the air passing through and the ratio of the air bypassing the heater core 26 is adjusted, and the temperature of the conditioned air blown into the passenger compartment is controlled.

  At the most downstream side of the air conditioning unit 20, a defroster damper 22c for opening and closing a defroster (DEF) outlet for blowing conditioned air toward a front window glass (not shown), a face for blowing conditioned air toward the upper body of the occupant ( FACE) A face damper 22d for opening and closing the air outlet and a foot damper 22e for opening and closing a foot (FOOT) air outlet for blowing air-conditioned air toward the feet of the occupant are provided. The blow mode is set by operating these dampers 22c, 22d, and 22e as the blow mode switching means by an actuator (not shown). And the temperature-controlled conditioned air is blown out from the blower opening opened according to each blowing mode.

  The amount of blown air is controlled by a drive circuit 30 that drives the blower motor 24 based on an output signal from a microcomputer 31 as an air conditioning control device in the air conditioner. Each actuator (not shown) is also controlled by the drive circuit 30 based on an output signal from the microcomputer 31.

  The microcomputer 31 has a central processing unit (CPU), a ROM, a RAM, a standby RAM, an I / O port, an A / D conversion function, and the like (not shown) and is well known per se. The standby RAM is a RAM for storing (backing up) the learned values of passengers even when the ignition switch (hereinafter referred to as IG) is off. Even if the IG is off, the standby RAM does not go through the IG. Direct power is supplied. Further, even if the power is removed from the battery, the microcomputer 31 is constituted by a backup power source (not shown) that supplies power to the microcomputer 31 in a short time.

  Further, the microcomputer 31 as the air conditioning control device receives signals from sensors that detect environmental conditions that affect the air conditioning state in the passenger compartment. Specifically, the inside air temperature sensor 33 that detects the air temperature (inside air temperature) in the vehicle interior, the outside air temperature sensor 34 that detects the air temperature outside the vehicle interior (outside air temperature), and the amount of solar radiation that enters the vehicle interior. Each signal from the solar radiation sensor 35 is input to the microcomputer 31 via the respective level conversion circuit 32, and these signals are A / D converted and read by the microcomputer 31. The signal of the temperature setting switch 36 for setting the passenger's favorite temperature is level-converted by the level conversion circuit 32 and input to the microcomputer 31.

  The microcomputer 31 receives an output signal from the operation unit 37 installed in the vehicle interior instrument panel DB. The operation unit 37 includes an AUTO switch (not shown) for setting an automatic control state of the air conditioner, a manual internal / external air changeover switch (not shown) for manually setting the inside / outside air mode, and a blowing mode (DEF, FACE, FOOT, bi-level). (B / L), manual blow mode changeover switch (not shown) for manually setting the foot differential (F / D)), manual airflow changeover switch (airflow setting means) for manually setting the airflow of the fan 23, etc. Is provided.

  Specifically, the manual air volume switching switch includes an air volume up switch 371 and an air volume down switch 372. The air volume up switch 371 outputs a signal for raising the blower voltage by one level each time the air volume up switch 371 is pressed, and the air volume down switch 372. Outputs a signal to lower the blower voltage by one level each time it is pressed once.

  The microcomputer 31 as the control means of the present invention includes a reference count means for coefficient of a reference count value representing the passage of time, and an inflection point of a temporal change in the louver opening that is the opening of each swing louver 10 in advance. An operation inflection point information storage means for storing a reference count target value and a louver opening target value to be expressed as operation inflection point information; and a counted reference count value, that is, a current time and stored operation inflection point information. And a drive signal output means for outputting a drive signal for setting the louver opening to the target value to the louver drive means. Further, the microcomputer 31 includes pattern table changing means for changing at least one of the reference count target value and the louver opening target value among the stored operation inflection point information.

  Further, the microcomputer 31 receives an output signal from the swing instruction unit 38 installed in the vehicle interior instrument panel DB. The swing instructing unit 38 is provided with a swing control ON switch for the swing louver 10 described later and a switch for instructing to change the swing pattern of the swing louver 10, so that the occupant can appropriately set the swing pattern to a preset swing pattern. Based on this, the swing operation of the swing louver 10 can be activated, or the swing pattern can be changed to suit one's preference.

  As shown in FIG. 3 when the vehicle interior is viewed from above the vehicle, the above-described face air outlet has a total of four locations on the vehicle interior instrument panel DB: the right window side P1, the central portions P2, P3, and the left window side P4 in the vehicle left-right direction. At each face outlet, a swing louver 10 is provided as a wind direction adjusting means capable of adjusting the blowing direction of the conditioned air.

  The swing louver 10 will be described with reference to FIG. 2 is a schematic cross-sectional view of the swing louver 10 of FIG. 1 viewed from the Z direction. The swing louver 10 includes a plurality of vertical louvers 11 that adjust the blowing direction in the vehicle left-right direction of the conditioned air blowing direction, and a plurality of horizontal louvers that adjust the blowing direction in the vehicle vertical direction of the conditioned air blowing direction. 12.

  Of these louvers 11 and 12, the vertical louver 11 is driven by a step motor 13 as louver driving means. Specifically, an arm 14 is attached to the rotation shaft of the step motor 13, and the arm 14 and the vertical louver 11 are connected by a link lever 15. When the step motor 13 is driven based on the drive signal output from the microcomputer 31, the arm 14 swings, and the link lever 15 is displaced in the left-right direction of the vehicle by the swing of the arm 14. The vehicle left-right direction, that is, the louver opening is adjusted. In the present embodiment, the direction of the lateral louver 12 can be manually changed by a passenger.

  Further, the swing louver 10 is provided with a potentiometer 16 as a louver opening detection means for detecting the blowing direction of the air-conditioned wind in the vehicle left-right direction. The potentiometer 16 detects the rotation position (rotation angle) of the rotation shaft of the step motor 13, and the signal is input to the microcomputer 31. The microcomputer 31 calculates the current louver opening degree of the vertical louver 11 based on the signal from the potentiometer 16.

  Hereinafter, the vertical louver 11 is simply referred to as a louver 11, and the left and right blowing direction of the vertical louver 11 is simply referred to as a swing louver 10 or a louver opening degree of the louver 11. The louver opening = 0% or 100% represents the movable range of the louver 11, that is, the maximum leftward angle (minimum rightward angle) or the maximum rightward angle (minimum leftward angle). Is defined as 0% for the louver opening, and 100% for the other direction.

  For example, as shown in FIG. 3, in the swing louver 10 (P1) at the right window side position P1, when the blowing direction is directed to the driver DR, the louver opening is 0% and the direction parallel to the right window is used. The louver opening is 100%. Further, in the swing louver 10 (P2) at the driver seat side position P2 in the center, the louver opening is 0% when the blowing direction is directed to the driver DR, and the louver opening is 100% when the vehicle is directed rearward. To do. Similarly, in the swing louver 10 (P3) at the passenger seat position P3 in the center, the louver opening is 0% when the blowing direction is directed toward the passenger occupant PS, and the louver opening is 100 when the vehicle is directed rearward. %. In the swing louver 10 (P4) at the left window side position P4, the louver opening is 0% when the blowing direction is directed to the passenger seat occupant PS, and the louver opening is 100% when the direction is parallel to the left window. To do.

  Next, a swing pattern and a swing pattern setting method in the present embodiment will be described. The swing pattern means an operation of one swing cycle of the swing louver 10, that is, a time change of the louver opening. FIG. 4 shows an example of the swing pattern. In FIG. 4A, the swing louver 10 starts to operate from a louver opening of 0%, and after 100% is stopped and stopped for a while, the louver 11 is driven toward 0%. After reaching 0%, it is stopped for a while and one swing cycle is completed. The other swing patterns are as follows: FIG. 4B shows 0% → 100% → 0% → stop, FIG. 4C shows 0% stop → 100% → stop → 0%, FIG. 100% → 0% → Stop → 100%, FIG. 4 (e) shows 0% → 100% → 0% → 100% → 0%, FIG. 4 (f) shows 0% → 50% (intermediate) → Stop The operation of → 100% → 0% → stop is shown respectively. The swing louver 10 realizes a swing operation by repeatedly executing this swing pattern.

  The operation of such a swing pattern is performed as follows. FIG. 5 is a time diagram showing the outline. All swing louvers (only two are shown in FIG. 5) arranged at positions P1, P2, P3, and P4 in the vehicle interior instrument panel DB are all made constant, and this swing cycle is managed. Reference counting means is provided in the microcomputer 31. As shown in FIG. 5 (c), the reference counting means counts the reference count value from 0 (minimum value) to MAX (maximum value) as time elapses, and repeats this. Each swing louver 10 (P1, P2,...) Operates to aim at an operation target point calculated based on the swing pattern and the reference count value so as to realize a swing pattern given individually. . For example, in FIGS. 5A to 5C, the louver openings of the swing louvers 10 (P1) and 10 (P2) at the time of the reference count value N are θ1 and θ2, respectively.

  FIG. 6 is a diagram illustrating a swing pattern setting method. The swing pattern is set by expressing an operation inflection point by an inflection point count value k, and a reference count target value nk that is a reference count value at the operation inflection point k and a louver opening target value θk are expressed as (k, nk, θk). For example, as shown in the swing pattern table of FIG. 6B, the swing pattern as shown in FIG. 6A has an operation inflection point (reference count target value) with respect to the reference count value 0 to 500 in one swing cycle. , Louver opening target value) from point A (0, 0, 0%) as the starting point, point B (1, 100, 100%), point C (2, 250, 100%), point D (3 , 350,0%) and setting the E point (4,500 = 0,0%) as the end point. In the example of FIG. 6, the swing speed, which is the time change amount of the louver opening, is 1% / count. That is, in this embodiment, while the reference count means counts the reference count value by 1, the movement amount of the swing louver 10 (P1, P2,...), That is, the louver opening is the maximum movement amount (opening). The rotation amount of each step motor 13 is set in advance so as to be 1%.

  In this way, the pattern table representing the swing pattern in one swing cycle is stored in advance in the operating inflection point information storage means provided in the microcomputer 31. Furthermore, as this pattern table, for example, as shown in FIGS. 4A to 4F, a plurality of different pattern tables can be set, and these can be provided in the operating inflection point information storage means. Therefore, various swing patterns can be easily designed by determining discrete operation inflection points only by setting the reference count target value and the louver opening target value.

  Next, a swing control routine executed by the microcomputer 31 as the control means will be described based on the flowchart of FIG. This swing control routine is started based on a swing control start instruction output from the swing instruction unit 38. The swing control start instruction is performed, for example, by a switch operation by an occupant. The swing control routine shown in FIG. 7 is executed for each swing louver 10 (P1, P2,...).

  In step 100, it is determined whether or not there has been an activation instruction by operating the swing instruction unit 38. If there is an activation instruction, the process proceeds to step 102, and the process proceeds to step 122 in which there is no activation instruction. In step 122, if the swing control unit 38 is instructed to turn off the swing control or the like, this routine is terminated if the current swing control is not being operated, and if the current swing is being operated, the routine proceeds to step 108.

  In step 102, the pattern table (k, nk, θk) is read from the operating inflection point information storage means. The data of this pattern table is expressed as a number k (inflection point count value) representing a plurality of operation inflection points, a reference count target value nk and a louver opening target value θk at each operation inflection point. is there. In the next step 104, the reference count value n and the inflection point count value k are each cleared to zero. In the next step 106, the reference count target value (n0) and the louver opening target value (θ0) of the first operation inflection point (k = 0) are determined from the read operation inflection point information. As described above, the swing pattern control start process is performed.

  Below, the swing control process in one swing period is performed. In step 108, the operating direction of the swing louver 10 is determined. This operating direction is compared with the current value θ of the louver opening detected by the potentiometer 16 serving as a louver opening detecting means and the louver opening target value θk at the next operation inflection point. The driving direction of the step motor 13 is determined according to the relationship. Specifically, if θk−θ> 0, the direction in which the louver opening θ is increased, that is, the driving direction of the step motor 13 is determined so that the louver 11 approaches the maximum angle on the side opposite to the maximum angle on the passenger side. The If θk−θ <0, the driving direction of the step motor 13 is determined so as to be in the reverse direction, that is, the direction of the maximum angle on the passenger side. If θk−θ = 0, the rotation amount of the step motor 13 is set to 0, that is, the step motor 13 is stopped. In step 110, the step motor 13 is driven by the amount of rotation corresponding to the period of the reference count value n = 1.

  In step 112, the reference count value n is incremented, and in step 114, it is determined whether or not the reference count value n has reached the maximum value MAX (n = 500) of the reference count value in one swing cycle.

  If the maximum value has been reached, one swing cycle has been completed, so the routine proceeds to step 124 where the reference count value n and the inflection point count value k are cleared to 0, respectively, and the procedure returns to step 100 to start the next swing cycle. Is done.

  If the maximum value has not been reached, it is determined in step 116 whether or not the current reference count value n has reached the reference count target value nk. If n has not reached nk, the routine returns to step 108, and the change of the louver opening by the drive of the swing louver 10 is continued. When n reaches nk, the inflection point count value k is incremented at step 118, and the reference count target value nk and the louver opening target value θk of the next operation inflection point are read from the pattern table being read. Are selected and determined as the next target values. Thereafter, the process returns to step 108, and the swing louver 10 is driven.

  By executing the swing control routine as described above, the louver opening of the vertical louver 11 of the swing louver 10 is changed in the swing pattern as shown in FIGS. 4A to 4F, and this pattern is repeated. It is.

  Next, a method for changing the pattern table will be described. In the present embodiment, the shape of the swing pattern is changed by changing at least one of the reference count target value nk and the louver opening target value θk, which is the inflection point information of the swing pattern stored in advance. Can be changed.

  FIG. 8 shows an example of changing the pattern shown in FIG. That is, as in the pattern table shown in FIG. 8A, the reference count target value at point C that defines the stop time of the swing louver 10 is changed to x. Accordingly, in order not to change the swing speed of the louver, the reference count target value of the adjacent D point where the C point and the louver opening target value θk are equal is also changed to x + 100. Thereby, the stop time between BC in which the louver opening is 100% can be changed.

  Since the reference count target value at point D is changed, the stop time between D and E at which the louver opening is 0% also changes. However, by changing the reference count target value MAX at point E, which is the end point of the adjacent one swing cycle where point D and louver opening target value θk are equal, D is independent of the change in stop time between B and C. The stop time between -E can be changed.

  FIG. 9 shows another example of pattern change. In the pattern table of FIG. 9A, both the reference count target value nk and the louver opening target value θk at point B are changed to x and y (%), respectively. In response to this, the louver opening target value of the adjacent C point where the B point and the louver opening target value are equal is also changed to y (%) so as to coincide with the B point. At this time, by appropriately setting x and y, the swing speed y / x between AB and the swing speed (100-y) / 100 between CD can be changed. Thereby, the swing louver 10 can be swing-stopped at an arbitrary position y (%). The swing speed can be changed by changing the louver opening per count of the reference count value, that is, the rotation amount of the step motor 13.

  The swing pattern is changed in the swing instructing unit 38 by using the reference count target value nk at the desired operation inflection point (inflection point count value k) and the louver among the operation inflection point information stored in advance. This can be done by changing the target opening value θk with a switch. When changing the operation inflection point information, for example, a swing pattern is displayed on a display unit (not shown) provided in the swing instructing unit 38, and the occupant looks at the desired pattern line diagram. It can be modified to be a shape.

  The changed swing pattern is stored again in the operating inflection point information storage means in the microcomputer 31 and used as a swing pattern during swing control.

  In the above embodiment, the current value θ of the louver opening is detected by the potentiometer 16, and the drive direction (air blowing direction) of the swing louver 10 is determined by comparing this detected value with the louver opening target value θk. However, it is not always necessary to detect the current value θ of the louver opening. That is, if the rotation direction or stop state of the step motor 13 between the operating inflection points is determined in advance according to the inflection point count value k, the target louver opening is determined by the exact amount of rotation generated by the step motor 13. Can be obtained.

  In the above embodiment, the example in which the vertical louver 11 of the swing louver 10 is swing-controlled has been shown. However, the horizontal louver 12 is also provided with louver driving means, and similarly, the horizontal louver 12 is swing-controlled to move the swing louver 10 in the vertical direction. You may make it swing the blowing direction. By simultaneously swing-controlling the vertical louver 11 and the horizontal louver 12, the blowing direction can be changed two-dimensionally.

It is a figure which shows the whole structure of the vehicle air conditioner of this embodiment. It is typical sectional drawing which looked at the swing louver 10 of FIG. 1 from the Z direction. It is the figure which looked at vehicle interior instrument panel DB vicinity from the vehicle upper direction. (A)-(f) is a time diagram which shows the example of a swing pattern, respectively. It is a figure which shows the action | operation outline of a swing pattern, (a) And (b) shows the example of the swing pattern each set to the swing louver arrange | positioned in a different position, (c) is with respect to the elapsed time of a reference | standard count value. It is a diagram which shows the change of a count value. It is a figure which shows the setting method of a swing pattern, (a) is a time diagram of a swing pattern, (b) is a figure showing the pattern table which sets the pattern of (a). It is a flowchart which shows a swing control routine. It is a figure which shows the example of a change of a swing pattern, (a) is a pattern table, (b) is a time diagram of the louver opening degree by the pattern table of (a). It is a figure which shows the example of a change of a swing pattern, (a) is a pattern table, (b) is a time diagram of the louver opening degree by the pattern table of (a).

Explanation of symbols

10 ... Swing louver, 11 ... Vertical louver (louver), 12 ... Horizontal louver,
13 ... Step motor, 15 ... Link lever, 16 ... Potentiometer,
31... Microcomputer (control means, reference count means, operation inflection point information storage means, drive signal output means),
32... Level conversion circuit, 38.

Claims (6)

A swing louver control device that swing-controls a louver (10) that adjusts an air blowing direction at an air outlet of a vehicle air conditioner,
Louver driving means (13, 14, 15) for changing the opening of the louver;
Control means (31) for providing a driving signal for setting the opening degree of the louver to a desired value to the louver driving means (13, 14, 15),
The control means (31)
Reference counting means (31) for counting a reference count value representing the passage of time;
An operation inflection point information storage means (31) for storing in advance the reference count target value representing the inflection point of the change in the louver opening and the louver opening target value as the operation inflection point information;
Drive signal output means (31) for outputting the drive signal based on the counted reference count value and the operation inflection point information;
A swing louver control device comprising: The drive signal output means (31) outputs the drive signal so that the current value of the louver opening approaches the louver opening target value until the reference count value reaches the reference count target value. The swing louver control device according to claim 1, wherein The control means (31) includes louver opening detection means (16) for detecting the current opening of the louver,
The operation inflection point information storage means (31) includes operation inflection point information for one cycle including a plurality of operation inflection points including a start point and an end point, and according to the counted reference count value, The operation inflection point information corresponding to the reference count target value temporally subsequent to the reference count value is output,
The drive signal output means (31) compares the detected louver opening with the louver opening target value of the next operation inflection point information, and based on the comparison result, the louver opening of the louver driving means. The swing louver control device according to claim 1, wherein a drive direction is determined and the drive signal corresponding to the drive direction is output. The reference count means (31) sequentially increases the reference count value from the minimum reference count value with the lapse of time, and when the reference count value reaches the maximum reference count, the reference count value is reduced to the minimum reference count value. Repeat one cycle operation to reset to value,
The swing according to claim 3, wherein the operation inflection point information storage means (31) stores the operation inflection point information as being synchronized with a cycle of the repetitive operation of the reference count means. Louver control device. The operation inflection point information storage means (31) is a pattern table change means (31) for changing at least one of the reference count target value and the louver opening target value of the stored operation inflection point information. , 38). The swing louver control device according to any one of claims 1 to 4, further comprising: The pattern table changing means (31, 38) changes the reference count target value of at least one of the adjacent inflection points of the adjacent inflection points having the same louver opening target value. The swing louver control device according to claim 5.

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