JP2002307936A - Air-conditioning control device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an occupant's comfort in a bilevel mode and a differential foot mode. SOLUTION: A bilevel switch 26 and a differential foot switch 28 out of mode selecting switches 25-29 provided at an air-conditioning control panel 20, are constituted as seesaw type switches having contacts at the upper and lower parts, and up-signals are outputted by the upper operation of the switches 26, 28, while down signals are outputted by the lower operation. A controller 30 reads the up signal and down signal and outputs control signals to actuators 31-33. Doors 11-13 of blowoff ports 11a-13a are thereby rotated according to the number of operation of the switches 26, 28, and the air quantity ratio can be adjusted to the occupant's liking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning control system for a vehicle which can change the distribution of air flow from each outlet in a bi-level mode or a differential foot mode in which air is simultaneously blown from two or more outlets.

[0002]

2. Description of the Related Art Conventionally, in a vehicle air conditioner,
The air outlet can be arbitrarily selected by operating a mode switch or the like, whereby the air conditioning mode is changed to, for example, a vent mode, a bi-level mode, a foot mode, a differential foot mode, or the like. Here, the bi-level mode is a mode in which relatively low-temperature air is blown from the vent outlet toward the occupant, and relatively warm air is blown from the foot outlet. The differential foot mode is a mode in which air is blown from the foot outlet and hot air is blown from the differential outlet toward the inside of the window glass. The distribution of the air volume from each outlet in the bi-level mode and the differential foot mode is determined in advance for each vehicle type, and cannot be arbitrarily changed by the occupant.

[0003]

However, the air flow from each air outlet that the passenger feels comfortable differs between cooling and heating during cooling and heating. Therefore, it is difficult to sufficiently satisfy the occupant's comfort while the air volume distribution is fixed. In particular, in the differential foot mode, the warm air is blown upward, so that the occupant's head is easily heated and the comfort is further impaired.

[0004] It is an object of the present invention to provide an air conditioning control device for a vehicle which can improve the comfort of the occupant in a bi-level mode or a differential foot mode.

[0005]

An embodiment will be described with reference to the accompanying drawings. (1) The invention of claim 1 has a selection means 25 to 29, 42, 45, 47 for selecting a predetermined air conditioning mode, and the air conditioning mode selected by the selection means 25 to 29, 42, 45, 47 The present invention is applied to a vehicle air-conditioning control device that blows temperature-controlled air from predetermined outlets 11a to 13a corresponding to the air conditioner. Then, operating means 26, 28, 46, 55 for instructing the distribution of air volume from the plurality of outlets 11a to 13a, and selecting means 26, 2
8, 42, 45, two or more outlets 11a-1 at the same time
When the air-conditioning mode in which the temperature-controlled air is blown from 3a is selected, the airflow distribution control means 30, which controls the airflow distribution from each of the air outlets 11a to 13a in accordance with a command from the operation means 26, 28, 46, 55, The above-mentioned object is achieved by providing 31 to 33, 60. (2) The invention according to claim 2 is the vehicle air conditioning control device according to claim 1, wherein the air flow distribution control means 30, 31 to 33,
When the differential foot mode is selected by the selecting means 28, 42, 45, the differential air outlet 13a and the foot air outlet 12a are operated in response to a command from the operating means 28, 46, 55.
To control the distribution of airflow from the (3) The invention according to claim 3 is the vehicle air-conditioning control device according to claim 1, wherein the air volume distribution control means 30, 31 to 33,
When the bi-level mode is selected by the selecting means 28, 42, 45, the vent outlet 11a and the foot outlet 12
This is for controlling the distribution of the air flow from a. (4) The invention of claim 4 is the vehicle air conditioning control device according to any one of claims 1 to 3, wherein each of the air outlets 11a is provided.
13a, and reset means 46, 55, and 60 for resetting the distribution of the air flow from 13a to 13a to a preset initial state. (5) The invention of claim 5 is the vehicle air conditioning control device according to any one of claims 1 to 4, wherein each of the air outlets 11a is provided.
13a to 13a.

[0006] In the section of the means for solving the above-mentioned problems, which explains the configuration of the present invention, the drawings of the embodiments are used to make the present invention easier to understand. However, the present invention is not limited to this.

[0007]

According to the present invention, the following effects can be obtained. (1) According to the first aspect of the present invention, when the air conditioning mode in which the temperature-controlled air is blown from two or more outlets at the same time is selected, the air volume distribution from each outlet is made in response to a command from the operating means. , The distribution of the air volume from the air outlet can be changed according to the occupant's preference, and the occupant's comfort in the bi-level mode or the differential foot mode can be improved. (2) According to the second aspect of the invention, when the differential foot mode is selected, the air volume distribution from the differential air outlet and the foot air outlet is controlled in accordance with a command from the operating means. The amount of air blown from the exit can be arbitrarily reduced, and the feeling of hot flashes of the occupant's head can be suppressed. (3) According to the third aspect of the present invention, when the bi-level mode is selected, the air volume distribution from the vent outlet and the foot outlet is controlled according to a command from the operating means. The amount of air blown from the outlet can be arbitrarily adjusted, and the comfort is further improved. (4) According to the invention of claim 4, since the reset means for resetting the distribution of the air volume from each outlet to the initial state is provided, the air volume ratio can be easily reset. (5) According to the fifth aspect of the present invention, the air volume distribution from each air outlet is displayed by the display means, so that the operation of changing the air volume distribution can be performed while recognizing the current air volume distribution of the occupant. .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment A first embodiment of the present invention will be described with reference to FIGS. The vehicle air conditioner control device according to the first embodiment is applied to a manual air conditioner. FIG. 1 is a diagram showing a configuration of an air conditioning unit 1 having a vehicle air conditioning control device according to a first embodiment of the present invention. In FIG.
When the blower fan 2 rotates, outside air or inside air is selectively taken into the air conditioning unit 1 from the outside air introduction port 3a or the inside air introduction port 3b according to the opening degree of the intake door 3. The taken-in air is heat-exchanged by the evaporator 4 to be cooled. An air mixing door 5 is provided on the downstream side of the evaporator 4. Part of the air that has passed through the evaporator 4 passes through the heater core 6 according to the opening degree of the air mixing door 5, and the rest passes through the bypass passage 7. I do. The air that has passed through the heater core 6 is heated by the heater core 6 to become hot air, and the hot air and the cold air that has passed through the bypass passage 7 are mixed in the air mix chamber 8. The air whose temperature has been adjusted in this way is blown out from the outlets 11a to 13a in accordance with the opening degrees of the vent door 11, foot door 12, and differential door 13 provided in the vent outlet 11a, the foot outlet 12a, and the differential outlet 13a, respectively. Is done. The vent outlet 11a is provided in the vicinity of the outlet of the bypass passage 7, so that the vent outlet 11 is in the bi-level mode.
The cold air is easily blown from a.

FIG. 2 is an external view of an air-conditioning control panel 20 provided on an instrument panel or the like at a front portion in the vehicle. The control panel 20 has a fan dial 2 for instructing the starting and driving speed of the blower fan 2.
1, an air conditioning switch 23 for instructing start / stop of a compressor (not shown), an intake switch 24 for selecting introduction of inside air or outside air into the air conditioning unit 1, A vent switch 25 for selecting a vent mode, a bi-level switch 26 for selecting a bi-level mode, a foot switch 27 for selecting a foot mode, a differential foot switch 28 for selecting a differential foot mode, and a differential switch for selecting a differential mode 29 are arranged respectively. The bi-level switch 26 and the differential switch 27 are seesaw switches having contacts at the upper and lower portions, respectively. When the upper portions 26u and 28u of the switches are operated, an up signal is output, and when the lower portions 26d and 28d are operated, a down signal is output. Is output. Based on the up signal and the down signal, the air volume ratio (air volume distribution) from the air outlets 11a to 13a is changed as described later.

The air mixing door 5 has a temperature adjusting lever 22.
Is rotated in accordance with the operation amount of. That is, when the temperature adjustment lever 22 is operated in the direction A in FIG.
Is rotated in the direction A of FIG.
The proportion of air passing through increases, and the air temperature rises. Conversely, when the temperature adjustment lever 22 is operated in the B direction, the air mix door 5 is rotated in the B direction, and the proportion of air passing through the heater core 6 decreases, and the air temperature decreases.

The control panel 20 includes a switch 2
Lamps 23a to 29 that are turned on and off in response to operations of 3 to 29
a is provided. The lamp 23a alternately turns on and off in response to the operation of the air conditioner switch 23, whereby an ON or OFF signal is output to the compressor, and the compressor operates or stops. The lamp 24a alternately turns on and off in response to the operation of the intake switch 24, whereby the intake door 3 is rotated to open the outside air inlet 3a or the inside air inlet 3b. When the switches 25 to 29 are operated, the corresponding lamps 25a to 29
a lights up, and the remaining lamps 25a to 29a go out.
A signal corresponding to the operation of the switches 25 to 29 is input to the controller 30 shown in FIG.

FIG. 3 is a block diagram showing the configuration of the air outlet control section of the vehicle air conditioning control device according to the first embodiment. A vent switch 25, a bi-level switch 26, a foot switch 27, a differential foot switch 28, and a differential switch 29 are connected to the controller 30. The controller 30 outputs control signals to the vent door driving actuator 31, the foot door driving actuator 32, and the differential door driving actuator 33 based on the input signals from these. As a result, the doors 11 to 13 are rotated as follows.

When the vent switch 25 is operated, the vent door 11 is opened by the control signal from the controller 30, and the foot door 12 and the differential door 13 are closed. Thereby, the air in the air conditioning unit 1 is blown from the vent outlet 11a toward the occupant. When the foot switch 27 is operated, the foot door 12 is opened, and the vent door 11 and the differential door 13 are closed. Thus, the air in the air conditioning unit 1 is blown from the foot outlet 12a toward the feet of the occupant. When the differential switch 29 is operated, the differential door 13 is opened, and the vent door 11 and the foot door 12 are closed. As a result, the air in the air conditioning unit 1 is
Air is blown from 3a toward the inside of the window glass.

When the bi-level switch 26 is operated,
While the differential door 13 is closed, the vent door 11 and the foot door 12 are rotated according to the number of times the switch 26 is operated. When the differential foot switch 28 is operated, the vent door 11 is closed and the switch 2
8, the foot door 12 and the differential door 13 are rotated. Hereinafter, this point will be described.

FIG. 4 is a diagram showing the relationship between a signal (operation signal) corresponding to the number of times the switches 26 and 28 are operated and the air volume ratio from the outlets 11a and 12a or the outlets 12a and 13a. The controller 30 stores in advance the relationship of the control signals to the actuators 31 to 33 according to the operation signal, and based on this relationship, the actuators 31 to 33
Is controlled. As a result, the outlets 11a to 13a
Is changed as shown in the figure. When an up signal is output by operating the upper portions 26u and 28u of the switches 26 and 28, the operating signal increases in accordance with the number of operations, and when a down signal is output by operating the lower portions 26d and 28d, the number of operations is increased. The operation signal decreases according to.

As shown in FIG. 4, the bi-level switch 2
6 is operated for the first time (initial state), the doors 11 and 12 are rotated by a predetermined amount according to a control signal from the controller 30, and the ratio of the air volume from the vent outlet 11a to the foot air outlet 12a is controlled to 60:40. You. Then switch 2
When the upper part 26u of 6 is operated, an up signal is output and the operation signal is increased (once), the door opening is changed, and the air volume ratio is controlled to 30:70. When the switch 26u is further operated, an up signal is output in accordance with the operation, and the operation signal increases (two times,..., Six times), and the air volume ratio becomes 40: 6.
0, 50:50, 60:40, 70:30, 80:20. That is, as the number of times the switch 26u is operated increases, the distribution of the air volume from the vent outlet 11a increases. Even if the switch 26u is operated with the operation signal being the maximum (six times), the operation signal does not change, and the air volume ratio is 8
It remains at 0:20. The operation signal is maximum (6 times)
When the switch 26u is operated in this state, the operation signal may be reset to the initial state.

On the other hand, if the lower portion 26d of the switch 26 is operated in a state where the operation signal is maximum (six times), a down signal is output in accordance with the operation, and the operation signal decreases (5).
Times, ..., once), and the air volume ratio is 70:30, 60: 40,5
0:50, 40:60, 30:70 are sequentially changed. That is, as the number of times the switch 26d is operated increases, the distribution of the air volume from the vent outlet 11a decreases. When the switch 26d is operated with one operation signal, the air volume ratio returns to the initial state 60:40. In the initial state, the operation signal does not change even if the switch 26d is operated, and the air volume ratio is 6
It remains at 0:40.

When the differential foot switch 28 is operated for the first time (initial state), the doors 12 and 13 are rotated by a predetermined amount in response to a control signal from the controller 30, and the differential air outlet 13a and the foot air outlet 12a are opened. Air volume ratio is 5
0:50 is controlled. Then, the upper part 2 of the switch 28
When 8u is operated, an up signal is output and the operation signal is increased (once), and the air volume ratio is controlled to 5:95. When the switch 28u is further operated, the operation signal increases with the operation (2 times... 6 times), and the air volume ratio becomes 10:90,
20:80, 30:70, 40:60, 50:50. That is, as the number of times the switch 28u is operated increases, the distribution of the air volume from the differential air outlet 13a increases. Switch 2 with the operation signal set to the maximum (6 times)
Operating the 8u does not change the operation signal.

When the lower part 28d of the switch 28 is operated in a state where the operation signal is set to the maximum (six times), a down signal is outputted with the operation and the operation signal decreases (five times,...).
・, Once), air volume ratio is 40:60, 30:70, 20: 8
0, 10: 90, and 5: 95 are sequentially changed. That is,
As the number of operations of the switch 28d increases, the differential outlet 1
The air volume distribution from 3a is reduced. When the switch 28d is operated with one operation signal, the air volume ratio is changed to the initial state 5
It returns to 0:50. In the initial state, the operation signal does not change even if the switch 28d is operated. FIG. 5 shows the characteristics of the air volume distribution from the outlets 11a to 13a in each of the air conditioning modes described above.

As described above, according to the first embodiment, the switches 26 and 28 for selecting the bi-level mode and the differential foot mode are configured as seesaw switches, and an up signal is output by operating the switches 26u and 28u. The distribution of the air volume from the air outlets 11a and 12a increases according to the number of operations, and when a down signal is output by operating the switches 26d and 28d, the air volume from the air outlets 11a and 12a according to the number of operations. Allocation was reduced. Thereby, the air volume distribution from the air outlets 11a to 13a can be changed according to the operator's preference, and the occupant comfort in the vehicle is improved. Particularly, in the differential foot mode, the amount of air blown from the differential air outlet 13a can be reduced, so that it is possible to suppress the feeling of hotness of the occupant's head.

The upper outlet (vent outlet 11)
a, the upper portion 26u, 28u of the switch is operated to increase the air volume distribution from the differential air outlet 13a), and the lower portion of the switch is operated to increase the air volume distribution from the lower air outlet (foot air outlet 12a). Since the air outlets 26d and 28d are operated, the positions of the outlets 11a to 13a correspond to the positions of the switches 26u, 26d, 28u and 28d.

-Second Embodiment- A second embodiment of the present invention will be described with reference to FIGS. The vehicle air conditioning control device according to the second embodiment is applied to an automatic air conditioner. Note that the configuration of an air conditioning unit 1 according to the second embodiment is the same as that of FIG. 1, and a description thereof will be omitted. FIG. 6 is an external view of a control panel 40 of the vehicle air conditioning control device according to the second embodiment. The control panel 40 has a temperature adjustment dial 41 for instructing the blow-out air temperature, an auto switch 42 for instructing automatic operation of the air conditioner, an off switch 43 for instructing stop of the air conditioner, and starting / stopping of the compressor. An air conditioner switch 44 for commanding, a mode switch 45 for selecting an air conditioning mode,
13a, an air volume distribution change switch 46 for instructing a change in air volume distribution, a fan switch 47 for instructing the drive speed of the blower fan 2, a differential switch 48 for selecting a differential mode, introduction of inside air into the air conditioning unit 1, Intake switches 49 and 50 for instructing introduction are arranged. Further, the control panel 40 is provided with a display unit 51 for displaying various types of air conditioning information.

When the fan switch 47 is operated, the fan speed is changed from 1st speed → 2nd speed → 3rd speed → 4th speed → 1 according to the operation amount.
It is changed in order of speed. When the mode switch 45 is operated, the air conditioning mode is changed in the order of vent mode → bi-level mode → foot mode → diff foot mode → vent mode according to the amount of operation. When the differential switch 48 is operated, the air conditioning mode is changed to the differential mode prior to the operation of the mode switch 45, and the compressor is operated. The air volume distribution change switch 46 is a seesaw type switch having contacts on the left and right portions, respectively. When the right portion 46u of the switch is operated, an up signal is output, and when the left portion 46d is operated, a down signal is output. . Based on the up signal and the down signal, the distribution of the air volume from the outlets 11a to 13a is changed as described later.

In the air-conditioning mode display area 52 of the display unit 51, an arrow 52a indicating an upward blowing state, an arrow 52b indicating a downward blowing state, and a defrost symbol 52c are displayed.
Displays the current air conditioning mode. That is, the arrow 52a is displayed in the vent mode, the arrow 52b is displayed in the foot mode, and the arrow 52a is displayed in the bilevel mode.
a, 52b are displayed. In the differential mode, the symbol 5
2c is displayed, and symbols 52c and arrows 52a and 52b are displayed in the differential foot mode. Arrows 52a and 52b are 3
The length (display area) of the arrows 52a and 52b can be changed by turning on and off the lamps. As a result, in the bi-level mode and the differential foot mode, the larger the airflow distribution from the air outlets 11a and 13a, the larger the arrow 52b is displayed, and the larger the air outlet 12a.
The arrow 52c is displayed larger as the airflow distribution from a becomes larger. In the figure, the air volume distribution is displayed in three stages by turning on and off the three segment lamps, but the air volume distribution may be displayed by turning on and off the number (for example, six) of segment lamps according to the operation signal. In the fan speed display area 53, the current fan speed (full in FIG. 6) is displayed by the number of blades, and in the temperature display area 54, a temperature command value from the temperature adjustment dial 41 is digitally displayed.
When the compressor is operating, “A /
The letter "C" is displayed, and the letter "AUTO" is displayed during automatic operation.

FIG. 7 is a block diagram showing a configuration of an air outlet control unit of a vehicle air conditioner according to a second embodiment of the present invention. The controller 60 includes a temperature adjustment dial 4
1, an auto switch 42, an off switch 43, a mode switch 45, an air volume distribution switch 46, a differential switch 47, and an inside air sensor 61 for detecting the temperature inside the vehicle.
And an outside air sensor 62 for detecting the temperature outside the vehicle, and a solar radiation sensor 63 for detecting the amount of solar radiation. The controller 60 executes a process described later based on the input signals from these, and outputs a predetermined control signal to the actuators 31 to 33.

FIGS. 8 to 11 are flowcharts showing an example of the processing executed by the controller 60. As shown in FIG. 8, first, in step S1, it is determined whether the compressor is operating, that is, whether the auto switch 42 or the differential switch 47 is operated. Step S1
If affirmative, the process proceeds to step S19, and if negative, the process proceeds to step S2. In step S19, a control signal is output to the actuators 31 to 33 to set the air conditioning mode to the foot mode, that is, the foot door 12 is opened, the vent door 11 and the differential door 13 are closed, and the process returns. In step S2, it is determined whether the air-conditioning mode is manually selected, that is, whether the mode switch 45 or the differential switch 47 has been operated. If the air conditioning mode is in the automatic control operation, step S2 is denied and the process proceeds to step S3, where the temperature detection value Ti by the inside air sensor 61 is obtained from the temperature set value Tptc by the temperature adjustment dial 41.
nc is subtracted, and the state A or the state B is set as shown in the figure according to the subtraction value (Tptc-Tinc).

In step S4, it is determined whether the state is A or B. If the state is B, the process proceeds to step S5. Step S5
Then, the air mix door opening X is calculated by a well-known arithmetic expression according to the temperature set value Tptc and the detection values from the sensors 61 to 63.
Calculate M and set this as the target air mix door opening XD. On the other hand, when the state is determined to be the state A in step S4, the process proceeds to step S6, and the correction amount hQ'sun corresponding to the detection value Q'sun from the solar radiation sensor 63 is calculated based on the illustrated characteristics. Next, in step S7, the correction amount hQ'sun is subtracted from the air mix opening XM, and this is set as the target air mix opening XD. Next, the process proceeds to step S8, and the air conditioning mode corresponding to the target air mix door opening XD is selected based on the illustrated characteristics. Next, in step S9, it is determined whether or not the vent mode has been selected.
Proceed to. In step S10, the actuators 31 to 31
3 to output a control signal to the vent mode, that is, open the vent door 11, close the foot door 12 and the differential door 13, and return.

If step S9 is denied, step S1 is reached.
Proceed to 1 to determine whether the bi-level mode has been selected. If step S11 is affirmed, the process proceeds to step S12, in which a bi-level air volume distribution control described later is executed, and the process returns. If step S11 is denied, step S1 is reached.
Proceeding to 3, the state 1 or the state 2 is set based on the calculated value of the air mix door opening XM based on the predetermined characteristic shown in the drawing. Next, in step S14, it is determined whether the state is 1 or 2, and if it is determined that the state is 1, the process proceeds to step S15,
If it is determined that the state is 2, the process proceeds to step S16. In step S15, a control signal is output to the actuator to set the air conditioning mode to the foot mode, and the process returns. In step S16, state 1 or state 2 is set in accordance with the detection value Tamb of the outside air sensor 62 based on predetermined characteristics shown in the drawing. Next, in step S17, it is determined whether the state is 1 or 2, and if it is determined that the state is 1, the process proceeds to step S15,
If it is determined that the state is 2, the process proceeds to step S18. In step S18, a differential foot air volume distribution control described later is executed,
To return.

On the other hand, if step S2 is affirmative, that is, if it is determined that the air conditioning mode is manually set, step S2 in FIG.
The process proceeds to 0, and it is determined whether the vent mode has been selected. When step S20 is affirmed, the process proceeds to step S21, in which a control signal is output to the actuators 31 to 33 to fix the air conditioning mode to the vent mode, and the process returns. If step S20 is denied, the process proceeds to step S22, and it is determined whether the bi-level mode has been selected. If step S22 is affirmed, the process proceeds to step S23, in which a bi-level air volume distribution control described later is executed, and the process returns. If step S22 is denied, the process proceeds to step S24, and it is determined whether the foot mode has been selected.

If step S24 is affirmative, step S
In step 25, a control signal is output to the actuators 31 to 33 to fix the air conditioning mode to the foot mode, and the process returns. If step S24 is denied, the process proceeds to step S26 to determine whether the differential foot mode has been selected.
If step S26 is affirmed, the process proceeds to step S27,
A differential foot air volume distribution control described later is executed, and the process returns. If all of steps S20, S22, S24, and S26 are denied, that is, if it is determined that the differential switch 47 is on, the process proceeds to step S28. In step S28, a control signal is output to the actuators 31 to 33, and the differential door 13
And vent door 11 and foot door 12
Is closed, the air conditioning mode is fixed to the differential mode, and the routine returns.

Here, step S12, step S23
Will be described. In the second embodiment, the air flow distribution switch 4
The operation signal increases when the up signal is output by the operation of the right part 46u of 6, and decreases when the down signal is output by the operation of the left part 46d. FIG. 10 is a flowchart illustrating an example of the bi-level air volume distribution control. When the bi-level mode is selected, the process proceeds to step S51,
It is determined whether the operation signal is in the initial state. Step S51
If affirmative, the process proceeds to step S52, and it is determined whether or not the right portion 46u of the air volume distribution switch has been operated. If step S52 is denied, the process proceeds to step S54, in which a control signal is output to the actuators 31 to 33 so that the air volume ratio becomes an initial state, and the process returns. In this case, the relationship of the air flow rate ratio to the operation signal is the same as that shown in FIG. 4, so that the air flow ratio from the outlets 11a and 12a is 60: 4.
Controlled to 0.

If step S51 is negative or step S52 is affirmative, the process proceeds to step S53. In step S53, a control signal is output to the actuators 31 to 33 so that the air volume ratio becomes a value corresponding to the operation signal. Thereby, the distribution of the air volume from the air outlets 11a and 12a is changed according to the number of times the air volume distribution switch 46 is operated. Next, in step S55, it is determined whether or not the operation signal is maximum (six times). If affirmative, the process proceeds to step S56, and if negative, the process returns. In step S56, it is determined whether or not the right portion 46u of the air volume distribution switch has been operated. If the result is affirmative, the process proceeds to step S54, and if the result is negative, the process returns. Thereby, the air volume ratio is reset to the initial state 60:40.

Subsequently, steps S18 and S27
Will be described. FIG. 11 is a flowchart showing an example of the differential foot air volume distribution control. When the differential foot mode is selected, it is determined in step S61 whether or not the operation signal is in an initial state.
If step S61 is affirmed, the process proceeds to step S62,
It is determined whether the right part 46u of the air volume distribution switch has been operated. If step S62 is denied, step S64 is reached.
The control signal is output to the actuators 31 to 33 so that the air volume ratio becomes the initial state, and the process returns. As a result, the air volume ratio from the outlets 12a and 13a is controlled to 50:50.

If step S61 is negative or step S62 is affirmative, the process proceeds to step S63. In step S63, a control signal is output to the actuators 31 to 33 so that the air volume ratio becomes a value corresponding to the operation signal. Thereby, the distribution of the air volume from the outlets 12a and 13a is changed according to the number of times the air volume distribution switch 46 is operated. Next, in step S65, it is determined whether or not the operation signal is maximum (six times). If affirmative, the process proceeds to step S66, and if negative, the process returns. In step S66, it is determined whether or not the right portion 46u of the air volume distribution switch has been operated. If the result is affirmative, the process proceeds to step S54, and if the result is negative, the process returns. Thereby, the air volume ratio is reset to the initial state 50:50.

Next, the characteristic operation of the second embodiment will be described. When the auto switch 42 is turned on, the air-conditioning mode is a vent mode (step S10), a bi-level mode (step S12), according to the target air mix door opening XD, the air mix door opening XM, and the outside air temperature Tamb.
While being controlled to one of the foot mode (step S15) and the differential foot mode (step S18),
The current air conditioning mode is displayed on the display unit 51. Immediately after being controlled to the bi-level mode, the air volume ratio from the outlets 11a and 12a is controlled to the initial state of 60:40 (step S54). In the bi-level mode, when the right part 46u of the air volume distribution switch is operated, the operation signal increases according to the number of operations, and when the left part 46d is operated, the operation signal decreases according to the number of operations (step S53). . As a result, the air volume distribution from the air outlets 11a and 12a is changed, and the air volume distribution at that time is indicated by an arrow 5 on the display unit 51.
2a and 52b are displayed. Thereby, the air volume ratio from the vent outlet 11a can be adjusted according to the occupant's preference, and the comfort is improved. Maximum operation signal (6 times)
At this time, when the air volume distribution switch 46u is operated, the air volume ratio is reset to the initial state 60:40 (step S5).
6 → Step S54). Thereby, the air volume ratio can be easily controlled to the initial state.

Immediately after the air-conditioning mode is controlled to the differential foot mode, the air volume ratio from the air outlets 12a and 13a is controlled to the initial state of 50:50 (step S64). When the right part 46u or the left part 46d of the air volume distribution switch is operated in this state, the operation signal increases or decreases according to the number of times the switch is operated (step S63). Thereby, the amount of air blown from the differential air outlet 13a can be arbitrarily adjusted, and the feeling of hot flashes of the occupant's head can be suppressed. When the operation signal is at the maximum and the air volume distribution switch 46u is operated, the air volume ratio is reset to the initial state (Step S).
66 → step s64).

On the other hand, when the mode switch 45 is operated,
Vent mode (step S21), bi-level mode (step S23), foot mode (step S25), differential foot mode (step S27) according to the operation
Is selected, and when the differential switch 47 is operated, the differential mode (step S28) is selected. Here, when the air volume distribution switch 46 is operated in a state where the bi-level mode or the differential foot mode is selected, the air volume distribution is changed in the same manner as described above according to the number of times of operation.

As described above, in the second embodiment, the air flow distribution switch 46 is provided on the control panel 40 of the automatic air conditioner, and the air outlet 11a in the bi-level mode and the differential foot mode is operated in accordance with the operation of the switch 46.
Since the distribution of the air flow from 13 to 13a is changed, the comfort is improved. Further, when the operation signal is maximum (six times), the air volume ratio is returned to the initial state by operating the air volume distribution switch 46u. Therefore, the air volume ratio can be easily reset, and the air volume ratio can be adjusted again. It will be easier. In this case, there is no need to separately provide a reset switch, so that the number of components and space are saved. Furthermore, since the air volume distribution is displayed on the display unit 51 of the control panel 40, the occupant can change the air volume distribution while recognizing the current air volume distribution.

In the above-described embodiment, the air volume distribution switch is reset by operating the air volume distribution switch 46. However, a reset switch may be provided separately, and when the switch 46 is pressed for a predetermined time, the reset is performed. A signal may be output. Further, in the above embodiment,
Although the air volume distribution switch 46 is configured as a push type switch, the air volume distribution switch may be configured as a dial type switch as shown in FIG. In this case, if the dial 55 is rotated at a stroke, the air volume distribution can be changed immediately from the initial state to the maximum (six times). In addition, the dial 55 may be configured as a push-type switch, and the air volume distribution may be reset by turning on the push-type switch. Thereby, even if the operation signal does not reach the maximum (six times), the air volume distribution can be reset.

Further, the air volume ratio when the air conditioning mode is changed from the bi-level mode and the differential foot mode to another air-conditioning mode is stored. The air volume ratio may be controlled to the stored value. Further, in the above-described embodiment, the air volume distribution from the air outlets 11a to 13a is changed in the bi-level mode and the differential foot mode. However, if the air-conditioning mode is the air blowing from two or more air outlets at the same time, The air volume distribution may be changed in another air conditioning mode.

In the above embodiment and the claims, the vent switch 25, the bi-level switch 26, the foot switch 27, the differential foot switch 28, the differential switch 29, the auto switch 42, the mode switch 45, and the differential switch 47 The selection means is a bi-level switch 2
6, the differential foot switch 28, the air volume distribution switch 46, and the air volume distribution dial 55 serve as operating means.
0, 60 and the door driving actuators 31 to 33 constitute air volume distribution control means, the air volume distribution switch 46, the air volume distribution dial 55, and the controller 60 constitute reset means, and the display unit 51 constitutes display means.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an air conditioning unit having a vehicle air conditioning control device according to a first embodiment of the present invention.

FIG. 2 is an external view of a control panel of the vehicle air-conditioning control device according to the first embodiment.

FIG. 3 is a block diagram showing a configuration of an air outlet control unit of the vehicle air conditioning control device according to the first embodiment.

FIG. 4 is a diagram showing a relationship between a signal (operation signal) corresponding to the number of times of operation of an air volume ratio changing switch and an air volume ratio.

FIG. 5 is a diagram showing characteristics of air volume distribution of the vehicle air-conditioning control device according to the first embodiment.

FIG. 6 is an external view of a control panel of a vehicle air-conditioning control device according to a second embodiment.

FIG. 7 is a block diagram showing a configuration of an air outlet control unit of a vehicle air conditioning control device according to a second embodiment.

FIG. 8 is a flowchart (part 1) illustrating an example of a process in an air outlet control unit of the vehicle air conditioning control device according to the second embodiment.

FIG. 9 is a flowchart (part 2) illustrating an example of a process in an air outlet control unit of the vehicle air-conditioning control device according to the second embodiment.

FIG. 10 is a flowchart illustrating bi-level air volume distribution control in an air outlet control unit of a vehicle air-conditioning control device according to a second embodiment.

FIG. 11 is a flowchart illustrating a differential foot air volume distribution control in an air outlet control unit of a vehicle air conditioning control device according to a second embodiment.

FIG. 12 is a diagram showing a modification of the control panel of the vehicle air conditioning control device of the present invention.

[Explanation of symbols]

11a vent outlet 12a foot outlet 13a differential outlet 25 vent switch 26 bilevel switch 27 foot switch 28 differential foot switch 29 differential switch 30 controller 31-33 door drive actuator 42 auto switch 45 mode switch 46 air volume distribution switch 51 display Part 55 Air volume distribution dial 60 Controller

 ──────────────────────────────────────────────────続 き The continuation of the front page F term (reference) 3L011 AF02 CP03

Claims (5)

[Claims] 1. A vehicle air-conditioning control device having a selection means for selecting a predetermined air-conditioning mode, and blowing temperature-regulated air from a predetermined outlet according to the air-conditioning mode selected by the selection means. Operating means for instructing the distribution of the air volume from the outlet, and when the air conditioner mode in which the temperature-controlled air is blown from two or more outlets simultaneously by the selecting means is selected, each air blower is operated in accordance with the instruction from the operating means. An air-conditioning control device for a vehicle, comprising: an airflow distribution control unit that controls airflow distribution from an outlet. 2. The air conditioning control device for a vehicle according to claim 1, wherein the air flow distribution control means is configured to output a differential air outlet according to a command from the operation means when a differential foot mode is selected by the selection means. And an air conditioning control device for a vehicle, which controls distribution of air flow from a foot outlet. 3. The air-conditioning control device for a vehicle according to claim 1, wherein the air flow distribution control means is configured to, when the bi-level mode is selected by the selection means, respond to a command from the operation means. And an air conditioning control device for a vehicle, which controls distribution of air flow from a foot outlet. 4. The vehicle air-conditioning control device according to claim 1, further comprising a reset unit that resets a distribution of air flow from each of the air outlets to a preset initial state. Vehicle air conditioning control device. 5. The air-conditioning control device for a vehicle according to claim 1, further comprising a display unit that displays a distribution of air flow from each of the air outlets. .