JP2000247139A - Independent temperature control method and air conditioning control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an air conditioning state considering the comfortableness of an occupant on the basis of limited sensor information. SOLUTION: This device has a vertical louver 12 for changing the vertical direction of blowing air and a lateral louver 13 for changing the lateral direction of blowing air, and these louvers 12, 13 are controlled so as to have deflection angles determined by fuzzy operation in a CPU 1 using a fuzzy rule set on the basis of a measured data. A blower motor 14 is also controlled so as to have a rotating speed determined by a fuzzy operation using the same fuzzy rule, whereby the temperatures near the head and leg of an occupant can be set to desired temperatures with a prescribed temperature difference.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to temperature control by an air-conditioning control device, and more particularly to temperature control by a vehicle air-conditioning control device, which realizes independent temperature control so as to ensure passenger comfort. About things.

[0002]

2. Description of the Related Art Various types of air conditioning systems for vehicles have been proposed from various viewpoints (for example, see JP-A-6-191257). In recent years, the comfort of occupants has become more important, and as a result, air conditioning that takes into account the comfort of individual occupants has been required rather than air conditioning that uniformly cools and heats the cabin as before. is there. Considering the current situation, independent air conditioning control is required for each location in order to obtain an air condition that sufficiently satisfies the comfort of the occupants, and the temperature and wind speed of the air blown from the air conditioning control system must meet such requirements. There is a need to control to match.

[0003]

However, in consideration of cost, installation space restrictions, and the like, it is not practical to install temperature sensors, wind speed sensors, and the like throughout the vehicle compartment for independent temperature control. It is necessary to perform appropriate air conditioning control based on limited sensor information. The present invention has been made in view of the above situation, and provides an independent temperature control method and an air conditioning control device that can realize an air conditioning state in consideration of occupant comfort based on limited sensor information.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an independent temperature control method according to the present invention is provided for independently controlling the temperature near the head and the temperature near the legs of an occupant in a vehicle cabin. An independent temperature control method for controlling the temperature and air velocity near the head or legs of an occupant in the vehicle cabin by adjusting the vertical wind direction and the horizontal wind direction at the air outlet of the air blown into the cabin by the cooling and heating device. Deflects in the respective directions determined based on predetermined data with respect to the actual measurement value and the desired temperature, and adjusts the blowing temperature of the cooling device and the flow rate of the blowing air near the head or legs of the occupant in the vehicle interior. The temperature near the head and the temperature near the leg of the occupant are predetermined as the temperature and the flow rate determined based on the predetermined data with respect to the actual measured values of the nearby temperature and the air flow velocity and the desired temperature. In which the temperature is controlled to a desired temperature at the temperature difference.

[0005] In such a configuration, in particular, by changing the wind direction of the outlet vertically and horizontally and separately, and adjusting the outlet temperature of the cooling and heating device, the temperature near the head and the leg near the occupant can be reduced. A desired temperature can be achieved, whereby an air-conditioned state that sufficiently satisfies passenger comfort is realized.

Further, in order to solve the above-mentioned problems, an independent temperature control method according to the present invention provides an independent temperature control for independently controlling the temperature near the head and the temperature near the legs of an occupant in a vehicle interior. A method, wherein the airflow in the vertical direction and the horizontal direction at the air outlet of the air blown into the vehicle interior by the air conditioner and the flow velocity of the air blown out from the air conditioner are measured near the head or legs of the occupant in the vehicle interior. Temperature and air flow velocity, and the vertical and horizontal wind directions and the flow velocity of the blown air at the air outlet determined by fuzzy calculation with respect to the desired temperature.

[0007] In such a configuration, in particular, by changing the wind direction of the air outlet vertically and horizontally and separately, and fuzzy controlling the air outlet temperature of the air conditioner, the temperature near the head and legs of the occupant can be reduced. Each of them can be set to a desired temperature, thereby realizing an air-conditioned state that sufficiently satisfies the comfort of the occupant.

Further, in order to solve the above-mentioned problems of the present invention,
The air-conditioning control device according to the present invention is an air-conditioning control device for independently controlling the temperature near the head and the temperature near the legs of the occupant in the passenger compartment. An up / down louver provided at the outlet, for deflecting a vertical wind direction of the blown air; an up / down louver control means for controlling a deflection angle of the up / down louver according to a control signal from the outside; A louver for left and right, which is provided at an outlet of the cooling and heating device that opens, and deflects a left-right wind direction of the blown air, and a louver control unit for left and right that controls a deflection angle of the left and right louvers according to a control signal from the outside. Rotation control means for controlling the rotation speed of the blower motor of the air conditioner in response to an external control signal, and controlling the air mix door opening of the air conditioner in response to an external control signal. Based on the temperature near the head or legs of the occupant and the airflow velocity and the desired temperature input from the outside, the deflection angles of the vertical louvers and the left and right louvers, Fuzzy calculation means for calculating the rotation speed of the blower motor by fuzzy calculation, and to the up / down louver control means, the left / right louver control means and the rotation control means in accordance with each value calculated by the fuzzy calculation means. A central control means for outputting a control signal, and a temperature near the head or legs of the occupant and an air flow velocity and a desired temperature inputted from outside, and the air mixing door opening degree based on predetermined data. And a predetermined control signal is output to the mixed door driving means in accordance with the determined air mix door opening. Those formed by comprising: a stage, a.

The air-conditioning control device having such a configuration is particularly suitable for executing the independent temperature control described above. In particular, the fuzzy calculation means, the central control means, and the door opening degree determination means can be realized by executing software by a microcomputer, for example.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. First, a configuration example of an air-conditioning control device in which the independent temperature control method according to the present invention is executed will be described with reference to FIG. The independent temperature control method according to the present invention enables independent temperature control according to a part of an occupant so as to satisfy occupant comfort by an air conditioning control device for a vehicle (details will be described later). In this embodiment, the temperature of the upper part (head) and the lower part (legs) of the seat on the front driver's side can be controlled independently. For this reason, the following configuration is assumed. First, 4
It is assumed that there are two seats, and an air conditioner (Airconditioner) is installed in front of the vehicle as shown in FIG. This cooling and heating device has a conventionally known and well-known configuration except that a vertical louver 12 and a left and right louver 13 as described later are provided. Here, a detailed description of the configuration of the conventional cooling and heating device is omitted, but in general, as a basic configuration, a blower motor, an air mixing door, and an evaporator are provided from the upstream side of the air conditioning duct, and the air conditioning duct is provided. At the downstream end of the vehicle so as to open into the vehicle interior. The air conditioner is configured such that the temperature of the blown air is controlled by controlling the opening degree of the air mix door by the air conditioning controller S in accordance with the heat load in the vehicle compartment. is there.

The so-called hardware configuration of the air-conditioning control device S according to the embodiment of the present invention
It has a PU (Central Processing Unit) 1 and this CPU 1
In FIG. 1, the respective sensor signals from the temperature sensor 2 and the flow rate sensor 3 are combined with a multiplexer (in FIG. 1, “MP
X) and the first interface circuit (FIG. 1)
In this case, the data is input through an “I / F (1)” 5). Here, the temperature sensor 2 is provided at an appropriate position, for example, near the head of the driver's seat, and detects the temperature Ta at that portion. The flow velocity sensor 3 is provided at an appropriate position on the head of the driver's seat, for example, and detects the air velocity Vair at that position. Here, an example of the first independent temperature control described below is an example in which the temperature in the vicinity of the head and the temperature in the vicinity of the legs on the front seat driver side are independently controlled, and in the temperature control, Since the temperature near the head and the temperature near the legs are set to a predetermined temperature difference as described later in detail, it is only necessary that the temperature sensor 2 detects the temperature of either the head or the legs. As described above, the temperature near the head is not necessarily required, and the temperature near the legs may be detected. Also,
Similarly, the flow sensor 3 does not necessarily have to be near the head, and when the temperature sensor 2 is provided on the leg, it may be provided on the leg.

The CPU 1 includes, for example, a so-called microcomputer made into an IC or a DSP (D
digitalSignalProcessor), and controls independent air temperature control by controlling the amount and direction of the blown air as described later. This CPU 1 has a first
And a second actuator drive circuit 6, 7, a blower drive circuit 8, and a third actuator drive circuit 9. Then, the first actuator drive circuit 6
Is a first stepping motor 10 for driving the upper and lower louvers 12 according to a control signal from the CPU 1, and a second actuator driving circuit 7 is a second stepping motor for driving the left and right louvers 13 according to the control signal from the CPU 1. 11 are respectively driven. Also,
The blower drive circuit 8 controls the blower motor 14 of the cooling and heating device according to the control signal from the CPU 1, and the third actuator drive circuit 9 controls the air mix door 16 of the cooling and heating device according to the control signal from the CPU 1. The motor actuators 15 are respectively driven.

In a cooling and heating apparatus, an air outlet (not shown) has an up / down louver 12 for deflecting the direction of the blown air stepwise in a vertical direction, and a stepwise changing the direction of the blown air in the left / right direction. Left and right louvers 1 for deflecting
3 is provided. The upper and lower louvers 12 and the left and right louvers 13 are configured so that the blowing direction of the blowing air can be changed stepwise independently of each other under the control of the CPU 1.

Next, independent temperature control in such a configuration will be described. First, in the independent temperature control according to the embodiment of the present invention, as will be described below with reference to the flowchart shown in FIG. 2, the actual measurement data for the independent temperature control includes the temperature sensor 2 and the flow rate sensor 3. Are used only for the respective detection signals, and the data necessary for the other temperature control are those set based on experimental data acquired in advance.

Here, the acquisition of the setting data will be described. First, generally, the comfort of the occupant in the vehicle compartment is determined by the temperature Ta, the radiation temperature Tr, the air flow velocity Vair, and the humidity R.
It is known that six thermal environmental factors such as H, metabolism Met, and clothing Icl influence. Among them, the temperature Ta, the radiation temperature Tr, the air flow velocity Vair, and the humidity RH are environmental factors in the vehicle compartment, and the metabolic rate Met and the clothing amount Icl are factors depending on the condition of the occupant. In the independent temperature control according to the embodiment of the present invention, the measured values of the temperature Ta and the air flow velocity Vair having a relatively large influence on the comfort of the occupant are used, and other thermal environmental factors are selected in advance. A predetermined value is used. It is preferable that predetermined values for other thermal environment factors are set in advance in, for example, a predetermined storage area in the CPU 1 and used for control.

First, there are differences in thermal sensation in each part of a human, and it is necessary to perform control taking this into consideration. In order to clarify the relationship between the wind speed and the comfortable temperature in the vicinity of the head and legs, the inventor of the present application has described the relationship between the temperature and the wind speed at which the occupant feels comfortable when the wind speed and the temperature are variously changed. Data obtained. As shown in FIG. 6, this data acquisition is performed at an appropriate position on the head and an appropriate position under the feet on each of the two seats, the driver's side and the passenger's side in the front seat and the rear seat. A temperature sensor and a flow rate sensor are provided, and a temperature sensor and a flow rate sensor are further provided on each of the ceiling, the outlet, and the floor of the vehicle (see the shaded circle in FIG. 6). . FIG.
Shows an example of acquired data in winter.
According to this, in winter, the wind speed in the passenger compartment has little effect on comfort, and although there is a range of sensations due to individual differences, it is more comfortable to be about 2 ° C higher at the legs than at the head. It can be said.

On the other hand, FIG. 8A, FIG. 9B and FIG. 9 show examples of the results of measuring the temperature change when the deflection angles of the upper and lower louvers 12 and the left and right louvers 13 are variously changed.
(A) and (B) are shown. That is, FIG.
8 (B) shows the measurement results of the temperature change in the front driver's seat, FIG. 8 (A) shows the temperature change near the head, and FIG. 8 (B) shows the leg portions. The temperature changes in the vicinity are shown respectively. 9 (A) and 9 (B) show the measurement results of the temperature change in the front passenger seat, and FIG. 9 (A) shows the temperature change near the head. (B) represents a temperature change near the leg, respectively. In these figures, Louveran
"gle" means the louver deflection angle, "Upper" and "Lowe
The axis indicated by "r" indicates the deflection angle of the vertical louver 12, and the axis indicated by "Right" and "Left" indicates the deflection angle of the left and right louvers 13, respectively. . In these figures, the vertical axis represents the temperature change per minute with respect to the deflection angle of the louver.

According to this measurement result, the temperature of the seat (driver's seat) located in front of the air outlet is larger than that of other places, whereas the position of the front passenger seat is larger. In the above, it can be confirmed that a temperature change hardly occurs. Based on these measurement results, the angles and wind speeds of the upper and lower louvers 12 and the left and right louvers 13 are controlled by fuzzy calculation using the actually measured temperature Ta and flow velocity Vair as antecedent variables (details will be described later). The required fuzzy rules are set.

Next, the independent temperature control by the above-described air conditioning control device will be described with reference to FIG. When the control by the CPU 1 is started, first, data is input by various sensors. Specifically, the detection signals from the temperature sensor 2 and the flow velocity sensor 3 are
(See step 100 in FIG. 2). Further, in this data input, it is preferable to input a desired head or leg temperature. That is, in the case of this example, independent temperature control is performed so that the temperature of the head and the temperature of the legs are set in advance as described later, but are not necessarily stored in a predetermined storage area of the CPU 1, for example. It is not necessary for the temperature to be the predetermined temperature, and when starting the independent temperature control, the desired temperature of the head or the leg is input to the CPU 1 from the outside, and the independent temperature control is performed according to the control procedure described below so as to reach the temperature. May be performed.

After the data has been input as described above, the deflection angles of the upper and lower louvers 12 and the left and right louvers 13 and the rotation speed of the blower motor 14 are obtained by fuzzy calculation (see step 200 in FIG. 2). ). That is, in this fuzzy operation, first,
The temperature Ta near the head (or the temperature near the legs) in the front driver's side seat based on the detection signal of the temperature sensor 2 previously input based on the detection signal, and based on the detection signal of the flow velocity sensor 3 also input data. Airflow near the head (or airflow near the legs) Vair in the front driver's seat
Further, the temperature in the vicinity of the desired head (or the temperature in the vicinity of the legs) is a so-called antecedent variable, and the deflection angles of the vertical louvers 12 and the left and right louvers 13 and the blower motor 14
Is calculated as a consequent variable.

In this fuzzy calculation, as described above, the temperature Ta and the air flow velocity Vair are based on the experimental data.
A fuzzy rule is set for the relationship between the desired temperature, the deflection angles of the vertical louvers 12 and the horizontal louvers 13 and the rotation speed of the blower motor 14. Based on the fuzzy rules, for example, a known and well-known centroid method is used. The inferred values of the deflection angles of the upper and lower louvers 12 and the left and right louvers 13 and the rotation speed of the blower motor 14 are calculated using the calculated values.

Next, the opening of the air mix door 16 is controlled based on preset data (see step 300 in FIG. 2). That is, in the embodiment of the present invention, the temperature near the head and the temperature near the legs are set to desired temperatures at the front seat driver's seat position by an experiment in advance, as described above. The required air mix door opening is measured for various values of the temperature Ta, the air flow velocity Vair, and other environmental conditions (outside temperature, solar radiation, etc.),
For example, a conversion table created based on the actual measurement data is stored in the storage area of the CPU 1 in advance. The conversion table calculates the temperature near the desired head and the temperature near the leg based on the temperature Ta, the air flow velocity Vair, the temperature near the desired head and the temperature near the leg input in the previous step 100. The air mix opening required to obtain the air mix is determined. When the air mixing door opening is not determined by this conversion table, that is, for a numerical value that is not in the conversion table,
For example, the air mix opening may be determined by a known or well-known interpolation method.

The air mix door opening is determined as described above, and C
A control signal is output from the PU 1 and the third actuator drive circuit 9 drives the mixed door motor actuator 15 so that the air mix door opening is set to a desired opening. Next, a control signal is output from the CPU 1 so that the deflection angle of the upper and lower louvers 12 and the left and right louvers 13 calculated by the fuzzy operation is obtained,
The first stepping motor 10 is connected to the second actuator driving circuit 7 via the first actuator driving circuit 6.
, The second stepping motors 11 are respectively driven (see step 400 in FIG. 2). Next, a control signal is output from the CPU 1 so that the rotational speed of the blower motor 14 is similarly calculated by the previous fuzzy operation, and the blower motor 14 is driven via the blower driving circuit 8. Returning to step 100, the above-described processing is repeated (see step 500 in FIG. 2).

FIG. 4 shows an example of the test result of the independent temperature control as described above. The test result will be described below. First, this test example assumes comfortable heating in winter. The initial cabin temperature is set to about 20 ° C., the desired temperature near the head is set to 25 ° C., and the temperature near the legs is set at the front driver's seat. The desired temperature was set to 27 ° C., and the independent temperature control was performed as described above. The characteristic curve shown in FIG. 4 shows the time change of the temperature near the head and the temperature near the legs at that time. It is a thing. According to the test results, by controlling the deflection angles of the upper and lower louvers 12 and the left and right louvers 13 and the rotation speed of the blower motor 14, the temperature near the head and the temperature near the legs are each almost desired. It can be confirmed that it can be controlled independently.

In the above configuration, the first actuator driving circuit 6 and the first stepping motor 1
0, the up / down louver control means is controlled by the second actuator drive circuit 7 and the second stepping motor 11, the left and right louver control means is controlled by the blower drive circuit 8, the rotation control means is controlled by the third actuator drive circuit 9
And by the mixed door motor actuator 15
The mixed door control means are realized respectively. Further, execution of step 200 (see FIG. 2) by the CPU 1 causes the fuzzy arithmetic
Execution of steps 400 and 500 (see FIG. 2), the central control means causes the CPU 1 to execute step 300
Execution of (see FIG. 2) realizes the door opening degree determining means.

Next, an example of the second independent temperature control will be described.
This will be described with reference to FIGS. 1, 3 and 5. The so-called hardware configuration of the air-conditioning control device S in the second independent temperature control is the same as that shown in FIG. 1 above, and therefore, FIG. 1 will be referred to in the following description as appropriate. In the second independent temperature control, the procedure of the independent temperature control by software executed in the CPU 1 is different from that of the first independent temperature control as described below. In FIG. 3, steps that are the same as the processing contents shown in FIG. 2 are given the same step numbers, and detailed descriptions thereof are omitted.

When the control by the CPU 1 is started, first, data is input by various sensors. Specifically, detection signals from the temperature sensor 2 and the flow rate sensor 3 are read into the CPU 1 via the multiplexer 4 and the first interface circuit 5 (see step 100 in FIG. 3). Further, in this data input, it is preferable to input a desired head or leg temperature. That is, in the case of this example, independent temperature control is performed so that the temperature of the head and the temperature of the legs are set in advance as described later, but are not necessarily stored in a predetermined storage area of the CPU 1, for example. It is not necessary for the temperature to be the predetermined temperature, and at the start of the independent temperature control, a desired head or leg temperature is input to the CPU 1 from outside,
Independent temperature control may be performed according to a control procedure described below so that the temperature is attained.

Next, the opening degree control of the air mix door 16 is performed based on the preset data (see step 300 in FIG. 3). That is, in the embodiment of the present invention, the temperature near the head and the temperature near the legs are set to desired temperatures at the front seat driver's seat position by an experiment in advance, as described above. The required air mix door opening is measured for various values of the temperature Ta, the air flow velocity Vair, and other environmental conditions (outside temperature, solar radiation, etc.),
For example, a conversion table created based on the actual measurement data is stored in the storage area of the CPU 1 in advance. Based on the temperature Ta, the air flow velocity Vair, and the temperature near the desired head (or the temperature near the leg) input in the previous step 100, the conversion table stores the temperature near the desired head and the temperature near the leg. The air mix opening required for obtaining the temperature is determined. When the air mixing door opening is not determined by the conversion table, that is, for a numerical value not included in the conversion table, the air mixing opening may be determined by, for example, a known or well-known interpolation method.

Next, so-called on / off control of the vertical louvers 12 and the horizontal louvers 13 is performed (see step 600 in FIG. 3). That is, first, the desired temperature inputted by the previous data input and the temperature Ta which is the actually measured data are obtained.
Up and down louvers 12 and left and right louvers 13 required to achieve a desired temperature based on the air flow velocity Vair.
Are read from a predetermined storage area of the CPU 1. Then, the CPU 1 outputs predetermined control signals corresponding to the read deflection angles to the first actuator driving circuit 6 and the second actuator driving circuit 7, respectively. The respective deflection angles of the upper limit louver and the left and right louvers 13 are controlled by driving the second stepping motors 11 respectively.

The driving of the first and second stepping motors 10 and 11 by the CPU 1 via the first and second actuator driving circuits 6 and 7 is so-called on / off control. That is, until the first and second stepping motors 10 and 11 are at the respective driving positions corresponding to the control signal from the CPU 1, in other words, the upper and lower louvers 12 and the left and right louvers 13 correspond to the control signal from the CPU 1. The first and second actuator drive circuits 6 and 7 perform driving until the respective deflection positions are reached, and the so-called on / off control in which the driving is stopped when the target deflection angle is reached. . The input desired temperature and the temperature Ta which is actually measured data
Up and down louvers 12 and left and right louvers 1 read from a predetermined storage area of the CPU 1 based on the airflow velocity Vair
Each deflection angle of No. 3 is determined by experimental data as described above in the description of the first independent temperature control.

Next, on / off control of the blower motor 14 is performed, and thereafter, the process returns to the previous step 100 and the above-described processing is repeated (step 700 in FIG. 3).
reference). That is, similarly to the louver on / off control (see step 600 in FIG. 3), the desired temperature is realized based on the desired temperature input by the data input, the temperature Ta which is the actually measured data, and the air flow velocity Vair. The required rotation speed of the blower motor 14 is read from a predetermined storage area of the CPU 1. Then, a control signal corresponding to the read rotation speed of the blower motor 14 is output from the CPU 1 to the blower drive circuit 8, and the blower motor 14 reads the rotation speed previously read in the CPU 1 by the blower drive circuit 8. That is, so-called on / off control is performed. That is, the blower motor 14
Is driven by the blower driving circuit 8 at a rotation speed determined by a control signal from the CPU 1, while the driving is stopped when it is determined by the CPu 1 that a desired temperature has been realized. Here, the determination by the CPU 1 as to whether or not the desired temperature has been achieved is made by detecting the desired temperature (or a predetermined temperature preset in the CPU 1) input in the data input and the first temperature sensor 2. This is performed by comparing with the set temperature Ta.

FIG. 5 shows an example of the test result of the independent temperature control described above. The test result will be described below. First, this test example is based on the assumption of comfortable heating in winter, in which the initial cabin temperature is set to about 20 ° C., and the desired temperature near the head in the front driver's side is set at 25 ° C.
In this case, the independent temperature control as described above was performed with the desired temperature in the vicinity of the leg and the temperature in the vicinity of the leg set at 27 ° C. The characteristic curve shown in FIG. It shows the time change of the temperature. According to this test result, the temperature near the head and the temperature near the legs slightly fluctuate before and after the desired temperature because of the independent temperature control using the on / off control as described above. However, the upper and lower louvers 1
2 and the deflection angles of the left and right louvers 13 and the blower motor 1
By controlling the rotation speed of No. 4, it can be confirmed that the temperature in the vicinity of the head and the temperature in the vicinity of the legs can be independently controlled to almost desired temperatures.

In the embodiment of the invention described above, a case has been described in which the temperature near the head and the temperature near the legs of the occupant are independently controlled at the seat position on the driver's side of the front seat. However, the control is not necessarily limited to the seat position on the front driver side, and it is needless to say that the same control may be applied to the front passenger seat, the rear driver seat, and the like.

The specific structure of the upper and lower louvers 12 and the left and right louvers 13 in the above-described structure can be variously varied. One example of such a structure is shown in FIGS. 10 to 12. A configuration example will be described with reference to FIG. In this configuration example, the left and right louvers 13 and the upper and lower louvers 12 are arranged in front and rear along the direction in which the blown air flows. That is, the left and right louvers 13 are disposed on the front side, that is, at positions where the air outlets are provided.
(See FIG. 1).
0 and FIG. 11).

Upper and lower louvers 12 and left and right louvers 13
Have the same basic configuration, and the vertical louver 12 includes a plurality of vertical fins 20 and a horizontal louver 13.
Has a plurality of left and right fins 21, respectively.
Since the mounting structure of the plurality of upper and lower fins 20 and the mounting structure of the plurality of left and right fins 21 are basically the same, the mounting structure of the upper and lower fins 20 will be described as an example. Are rotatably attached to the connection plate 22 at appropriate intervals (see FIG. 12), and the fin rotation shaft 20a of any one of the vertical fins 20 is rotated by the vertical motor 23. Thus, the plurality of upper and lower fins 20 are configured to rotate simultaneously. The left and right fins 21 are driven by a left and right motor 23 in the same manner.

[0036]

As described above, according to the present invention,
By adopting a configuration capable of realizing an air-conditioning state according to the occupant's part, especially, the vicinity of the occupant's head and the vicinity of the leg, which affect the occupant's comfort, can be set to different temperature states. Thus, an air-conditioning state that can satisfy the comfort of the occupant can be obtained. Further, the deflection angle of the louver and the velocity of the blowing air are determined based on predetermined data from the actually measured values of the temperature and flow velocity near the head or the leg and the desired temperature near the head or the leg. As a result, there is an effect that it is possible to perform temperature control that can satisfy occupant comfort based on limited sensor information.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating a configuration example of an air conditioning control device according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining a control procedure in a first independent temperature control by the air conditioning control device shown in FIG. 1;

FIG. 3 is a flowchart for explaining a control procedure in a second independent temperature control by the air conditioning control device shown in FIG. 1;

FIG. 4 is a characteristic diagram showing a temporal change of a temperature near a head and a temperature near a leg in a test example of the first independent temperature control.

FIG. 5 is a characteristic diagram showing a temporal change of a temperature near a head and a temperature near a leg in a test example of a second independent temperature control.

FIG. 6 is a characteristic diagram showing a temperature change in the vicinity of the head and the vicinity of the leg with respect to the airflow velocity in a test example showing a comfortable temperature difference between the vicinity of the head and the vicinity of the leg.

FIG. 7 is a schematic diagram schematically showing an arrangement of a cooling / heating device and a sensor in an experiment of data acquisition for setting a predetermined value stored in advance in a CPU used in first and second independent temperature controls.

8A and 8B show measurement results of a temperature change in the front driver's seat when the deflection angles of the upper and lower louvers and the left and right louvers are variously changed. FIG. 8A shows the temperature near the head. FIG. 8B is a characteristic diagram showing a change in temperature near the leg.

9A and 9B show measurement results of a temperature change in the front passenger seat when the deflection angles of the upper and lower louvers and the left and right louvers are variously changed. FIG. 9A shows the temperature near the head. FIG. 9B is a characteristic diagram showing a change in temperature near the leg.

FIG. 10 is a front view showing a specific configuration example of a vertical louver and a left and right louver.

11 is a plan view of the upper and lower louvers and the left and right louvers in the configuration shown in FIG.

12 is an overall perspective view showing a mounting structure of fins used for the vertical louvers and the left and right louvers in the configuration shown in FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... CPU 6 ... 1st actuator drive circuit 7 ... 2nd actuator drive circuit 10 ... 1st stepping motor 11 ... 2nd stepping motor 12 ... Vertical louver 13 ... Left and right louver

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideyuki Otaki 514-12 Ho, Yoshikawa-shi, Saitama Prefecture (72) Inventor Kazuyasu Kojima 3-13-26 Yayumicho, Higashimatsuyama-shi, Saitama Pref. 72) Inventor Hidenobu Ito 3-13-26 Yaumicho, Higashimatsuyama-shi, Saitama Pref. Zexel Higashimatsuyama Plant (72) Inventor Yuko Suzuki 127 Fukasaku Omiya-shi, Saitama F-term (reference) 5H004 GA26 GB12 HA01 HA07 HB01 HB02 JA01 KC02 KD17

Claims (7)

[Claims] An independent temperature control method for independently controlling the temperature in the vicinity of the head and the temperature in the vicinity of the legs of an occupant in a vehicle compartment, comprising: The wind direction in the direction and the wind direction in the left and right direction are deflected to the respective directions determined based on the measured values of the temperature near the head or the leg of the occupant in the passenger compartment and the airflow velocity and predetermined data with respect to the desired temperature. Along with the blowing temperature of the cooling device and the flow rate of the blowing air, the temperature near the head or legs of the occupant in the passenger compartment and the measured value of the air flow rate and the desired temperature based on the predetermined data based on the desired temperature An independent temperature control method, wherein the temperature and the flow velocity determined are controlled such that the temperature near the head of the occupant and the temperature near the legs become a desired temperature with a predetermined temperature difference. . 2. The predetermined data changes variously the vertical wind direction and the horizontal wind direction at the outlet of the air blown into the vehicle compartment by the air conditioner,
This is conversion data created based on the actual measured values of the temperature and air velocity near the occupant's head and legs when the blowing temperature of the cooling device and the flow rate of the blowing air are variously changed. The conversion data indicates that a temperature difference between the vicinity of the head of the occupant and the vicinity of the leg of the occupant is predetermined with respect to the measured temperature of the vicinity of the head or the leg of the occupant and the airflow velocity and the desired temperature. The vertical and horizontal wind directions at the air outlet of the air blown into the cabin by the cooling and heating device when the temperature difference becomes the air temperature, and the blowout temperature of the cooling device and the flow rate of the blown air are determined. The independent temperature control method according to claim 1. 3. An independent temperature control method for independently controlling the temperature in the vicinity of the head and the temperature in the vicinity of the legs of an occupant in a vehicle compartment, the method comprising: The wind direction in the direction, the wind direction in the left and right direction, and the flow velocity of the air blown out of the cooling device are determined by fuzzy calculation with respect to the actual measured values of the temperature near the head or legs of the occupant in the passenger compartment and the air flow rate and the desired temperature An independent temperature control method, characterized in that the vertical direction and the horizontal direction of the air outlet are the respective wind directions and the flow velocity of the blown air. 4. In the fuzzy calculation, the airflow in the vertical direction and the airflow in the horizontal direction at the air outlet of the air blown into the vehicle compartment by the air conditioner are changed variously, and the temperature of the air blown from the cooling device and the flow rate of the air blown out. Fuzzy rules created based on the actual measured values of the temperature and air velocity near the head and legs of the occupant when various changes were made to the occupant's head and legs. It is characterized by using a measured value of a temperature and an air flow velocity and a relation between a vertical wind direction and a horizontal wind direction at the air outlet for a desired temperature, and a relationship between a blow temperature of the cooling device and a flow rate of the blown air. The independent temperature control method according to claim 3, wherein 5. An air-conditioning control device for independently controlling the temperature in the vicinity of the head and the temperature in the vicinity of the legs of an occupant in a vehicle interior, wherein the air-conditioning control device is provided at an outlet of a cooling / heating device opening into the vehicle interior. A vertical louver for deflecting a vertical wind direction of the blown air, a vertical louver control means for controlling a deflection angle of the vertical louver in response to an external control signal, and a cooling / heating device opening into the vehicle interior. Left and right louvers provided at the outlet of the louver, and deflecting the wind direction of the blown air in the left and right direction; left and right louver control means for controlling the deflection angle of the left and right louvers in response to an external control signal; Rotation control means for controlling the rotation speed of the blower motor according to an external control signal, and controlling the air mix door opening of the air conditioner according to an external control signal. Mixed door control means, based on the temperature and air flow near the head or legs of the occupant input from the outside and the desired temperature, the deflection angles of the upper and lower louvers and the left and right louvers and the blower motor. Fuzzy calculation means for calculating the rotation speed by fuzzy calculation; and control signals to the up / down louver control means, the left / right louver control means and the rotation control means in accordance with the respective values calculated by the fuzzy calculation means. Central control means for outputting the air mixing door opening degree based on predetermined data from the temperature near the head or the leg near the occupant and the airflow velocity and the desired temperature inputted from outside. A door opening determining means for outputting a predetermined control signal to the mixed door driving means in accordance with the determined air mixing door opening; An air conditioning control device characterized by comprising in Bei. 6. In the fuzzy operation in the fuzzy operation means, the airflow in the up-down direction and the airflow direction in the left-right direction at the air outlet of the air blown into the vehicle compartment by the air conditioner are variously changed, and the air temperature of the air conditioner is changed. This is a fuzzy rule created based on the measured values of the temperature and air flow near the head and legs of the occupant when the flow velocity of the blown air is changed variously. The measured values of the temperature and the air flow velocity near the legs and the relations between the vertical direction and the horizontal direction of the air at the air outlet for the desired temperature, and the relationship between the blowing temperature of the cooling device and the flow rate of the blowing air are determined. The air conditioning control device according to claim 5, wherein the air conditioning control device is used. 7. The predetermined data in the mixed door opening degree determining means changes variously the up-down direction and the left-right direction at the air outlet of the air blown into the vehicle compartment by the cooling and heating device, respectively. Conversion data created based on the actual measured values of the temperature and air velocity near the head and legs of the occupant when the blowing temperature and the flow rate of the blowing air are variously changed. For the data for the vehicle, the temperature difference between the vicinity of the head and the leg of the occupant and the measured temperature of the air velocity near the head or the leg of the occupant and the desired temperature and the desired temperature are different from the predetermined temperature difference. The air-conditioning control device according to claim 5 or 6, wherein an opening degree of an air mix door of the cooling device is determined in a case where the air-conditioning control device is provided.