JPH06297931A - Control device for air conditioner - Google Patents

Abstract

PURPOSE:To learn the set temperature change performed by a user so as to provide the air-conditioned environment more agreeable to the body sensation of the user. CONSTITUTION:When the accumulated value M of set temperature change DELTATd exceeds the threshold value in the temperature rising direction (step 108), the specified value is added to tire initial set temperature to update the initial set temperature (step 109). When the accumulated value M exceeds the threshold value in the temperature falling direction (step 110), the specified value is subtracted from the initial set temperature to update the initial set temperature (step 111). The reset initial set temperature is used as the learning date of air-conditioning control (step 112). Display is initialized at the reference temperature 25 deg.C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for controlling an air conditioner on the basis of detected values such as a preset temperature and a vehicle interior temperature.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. 62-122813 discloses that air conditioning is automatically controlled based on a target outlet temperature. Here, the target outlet temperature is calculated based on the sum of the correction value and the value obtained by multiplying the vehicle interior set temperature, the vehicle interior temperature detected by the sensor, the outside air temperature, and the amount of solar radiation by the respective gains. If the user feels the temperature inside the car to be hot, the user may change the set temperature to a lower temperature, and if it feels to be cold, change the set temperature to a higher value. However, in the control device of the above publication, a person who is hot or a person who is cold has to correct the set temperature each time, which is troublesome. Japanese Utility Model Publication No. 60-10885 discloses adjusting a variable resistance in an auto amplifier that adjusts the opening degree of various doors. With this, it is possible to make a correction according to the user's feeling, but use it. It is impossible for a person to adjust the variable resistance in reality. Japanese Unexamined Patent Publication No. 62-258807 discloses that the blowing temperature and the blowing air amount are corrected in the feeling setting mode so as to be felt by the user, and the corrected values are stored.

[0003]

However, in JP-A-62-258807, since the subsequent air conditioning control is performed based on the user's one-time correction, the correction amount also depends on the physical condition of the user at that time. However, there is a drawback in that it is not possible to set the optimum settings for the user's experience. Also,
Since the correction is performed in the feeling setting mode different from the normal control mode, it is troublesome for the user.

[0004]

In order to solve the above problems, the gist of the present invention is, as shown in FIG. 1, a set temperature changing means 1 having an operating portion, a detecting means 2 for detecting at least an indoor temperature, An air conditioner control device comprising: a control means 3 for controlling an air conditioner based on set temperature data changeable by the set temperature changing means 1 and detection data from a detecting means 2; and further controlling the air conditioner. Based on the fact that the set temperature is raised or lowered by the set temperature changing means 1 during the operation, learning data for causing the control means 3 to perform control corresponding to the rise and fall of the set temperature is calculated, and the air conditioning afterwards is performed. The control device for an air conditioner is provided with a learning means 4 for supplying the learning data to the control means 3 when controlling the device. In one aspect, the learning means 4 calculates an initial set temperature as learning data. In this case, the control means 3 performs control based on the initial set temperature and the detection data from the start of control until the set temperature is changed by the set temperature changing means 1.
In another aspect, the control means 3 includes set temperature data,
Control is performed based on the detection data and an equation including a constant, and the learning unit 4 adjusts at least one of the constants to obtain learning data. In this aspect, a preset temperature initialization means for initializing the preset temperature to a reference value at the start of control is further provided.

[0005]

When the set temperature is changed, the learning data is created based on the change and the subsequent air conditioning control is performed based on the learning data, so that the air conditioning environment that is suitable for the user can be provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 2 shows a schematic configuration of a part of a vehicle air conditioner. The air conditioning duct 20 is provided with a blower (not shown), an evaporator 21, an air mix door 22, and a heater core 23 in order toward the downstream side.

The air mix door 22 adjusts the ratio of the air passing through the heater core 23 and the air not passing through the heater core 23 according to the opening degree. The air that has passed through the heater core 23 and the air that does not pass through the heater core 23 are
3 is mixed on the downstream side, the temperature is adjusted, and the mixture is blown out into the vehicle from the outlet.

A control device for controlling an air conditioner including the air mix door 22 includes a control unit 10. For example, a control signal from the control unit 10 is sent to the drive circuit 25, and the air mix door 22
The actuator 24 is driven and controlled. The control unit 10 includes a microcomputer and an A / D converter.

The control unit 10 includes an up switch 11a, a down switch 11b (set temperature changing means) for changing the set temperature Tdc in the vehicle, and an in-vehicle temperature Tr.
In-vehicle temperature sensor 12 (detection means) for detecting the temperature, outside air temperature sensor 13 (detection means) for detecting the outside air temperature Ta outside the vehicle, and solar radiation sensor 14 (detection means) for detecting the amount of solar radiation Q.
The data from is input. Up switch 11a is 1
Each time the switch is pressed, the set temperature is increased by 0.5 ° C, and each time the down switch 11b is pressed, the set temperature is decreased by 0.5 ° C. further,
A display 15 for displaying the set temperature is connected to the output side of the control unit 10.

The control unit 15 controls the actuator 24 and others based on the input data. A detailed description will be given below with reference to the flowcharts of FIGS. In this embodiment, four kinds of preset temperatures are used properly. That is, the set temperature for operation Td, the set temperature for display T
dd (apparent set temperature), control set temperature Tdc, and storage set temperature Tdc '. The preset temperature, the preset temperature Td for operation, the preset temperature Tdd for display, the preset temperature Tdc for control, and the preset temperature Tdc for storage are all set to 25 ° C. at the time of product shipment.

When the control routine of FIG. 3 is started, it is judged at step 101 whether or not the ignition key switch is on. If an affirmative decision is made in step 101, the signals from the sensors 12, 13, 14 and the switches 11a, 11b are read in step 102. In step 103, it is determined whether the ignition key switch is turned on and the routine is the first routine. When a negative determination is made in step 103, it is determined in step 104 whether the set temperature has been changed. The automatic control of FIG. 4 which is judged negative is executed.

The automatic control of FIG. 4 will be described below.
In step 501, the target blowout temperature Xm is calculated by the following formula. Xm = A * Tdc-B * Tr-C * Ta-D * Q + E Here, Tdc is set temperature for control, A is its gain, T
r is the interior temperature indicated by the interior temperature sensor, B is its gain,
Ta is the outside air temperature indicated by the outside air temperature sensor, C is its gain, Q is the amount of solar radiation detected by the solar radiation sensor, D is its gain, and E is a correction term. Next Step 502
Then, the opening degree of the mix door is calculated based on the target outlet temperature Xm, and a control signal is output to the drive circuit 25 of the actuator 24. In the next step 503, the intake door,
Other controls such as the blower and the blowing mode door are executed, and the process returns to step 101. In step 503, the display set temperature Tdd is displayed on the display unit 15.

If an affirmative decision is made in step 104, that is, the up switch 11a or the down switch 11b.
If it is determined that the operation set temperature Td has been changed by the operation of, the control set temperature Tdc is calculated by the equation T in step 105.
Set to the value of dc '+ (Td-25). Further, the set temperature for display Tdd is set to the set temperature for operation Td and displayed on the display unit 15. When the above is completed, the process proceeds to step 501. If a negative determination is made in step 101, the set temperature Td for operation, the set temperature Tdd for display, the set temperature Td for control are set in step 113.
c, the set temperature for storage Tdc ′ and other control variables are written in the memory, and this routine ends.

Next, a routine which is a characteristic part of the present invention will be described. If an affirmative decision is made in step 103,
In step 106, the difference ΔTd between the operation set temperature Td at the end of the previous control and 25 ° C. is calculated. Next step 107
Then, M + ΔTd is calculated and M is updated. The initial value of M is 0. M indicates a stack value of ΔTd. In step 108, it is determined whether the stacking value M is greater than or equal to the threshold value α.
This threshold value α is set to a level that cannot be easily exceeded by changing the set temperature in one air conditioning control. For example, it is set to 3 ° C. If an affirmative decision is made in step 108, step 1
At 09, a predetermined value β (for example, 0.5
C) is added to update the set temperature for storage Tdc 'and the stack value M is initialized to zero, and the process proceeds to the next step 112. If a negative decision is made in step 108, the operation proceeds to step 110. In step 110, it is determined whether M is less than or equal to the threshold value-α. If an affirmative decision is made in step 110, in the next step 111 the preset value β is subtracted from the preset storage temperature Tdc to update the preset storage temperature Tdc ′ and the stack value M is initialized to zero, and then step 112
Proceed to. In step 112, the control set temperature Tdc is made equal to the storage set temperature Tdc '. Further, the operation set temperature Td and the display set temperature Tdd are initialized to 25 ° C. Next, the control set temperature Tdc obtained based on the learning data described above.
Is used to execute the automatic control of steps 501 and 502. When a negative determination is made in steps 108 and 110, steps 109 and 111 are passed, and step 112
To execute. In this case, the set temperature for control Tdc is made equal to the set temperature for storage Tdc 'that is not updated.

As described above, when the set temperature is changed, it is judged at the beginning of the next air conditioning control whether or not the accumulated amount of change exceeds the threshold value, and if it exceeds, the control set temperature is adjusted. It is possible to gradually realize an air-conditioning environment that matches the experience of the user. In addition, the display of the set temperature is initialized to the reference value of 25 ° C each time the control is performed, so the user can change the set temperature from the same familiar reference display state, without making the user aware of the heat and cold. The set temperature can be set naturally according to the user's sensation during long-term use. In other words, it is possible to perform the display based on the individual feeling of the user.

Next, another embodiment will be described with reference to FIG. In this embodiment, step 107 of the routine of FIG.
~ 111 is replaced by step 201 shown in FIG. The detailed description of the steps overlapping with the routine of FIG. 4 will be omitted. When ΔTd is calculated in step 106 (FIG. 3), the set temperature for storage Tdc ′ = Tdc ′ in step 201.
+ KΔTd is calculated and the set temperature for storage Tdc ′ is updated. Here, K is selected to be larger than 0 and smaller than 1. Since K is smaller than 1, the set temperature for storage Tdc ′ is finely adjusted to a value smaller than the change ΔTd. In the next step 112 (FIG. 3), the control set temperature Td is set so as to be equal to the storage set temperature Tdc ', and is used for subsequent automatic control. The above routine is executed every time the set temperature is changed, and the set temperature for control is finely adjusted, so that an air-conditioning environment that gradually matches the user's sensation can be realized.

Further, another embodiment will be described with reference to FIG. When this routine starts, step 30
At 1, the set temperature Tdc is initialized to 25 ° C., and the change flag described later is reset. In this embodiment, the set temperature Tdc is directly changed by the switches 11a and 11b, and steps 501 to 50 are set based on the set temperature Tdc.
In step 3, automatic control is performed and the set temperature Tdc is displayed on the display unit 15. In the next step 302, the ignition key switch is turned on to determine whether or not this routine is the first routine. An affirmative decision is made in the first routine, and the routine proceeds to step 303. In step 303, it is determined whether or not a correction flag described later is set. If a negative decision is made in step 303, step 304
To determine if the blower is on. Step 30
When a negative determination is made in step 4, the process proceeds to step 501. If an affirmative decision is made in step 304, the set temperature T is set in step 305.
Determine if dc is 25 ° C. If an affirmative decision is made in step 305, the operation proceeds to step 501.

When a negative determination is made in step 305, it is determined in the next step 306 whether the set temperature has been changed. If an affirmative decision is made in step 306, a change flag is set in step 307. This is a flag indicating the fact that the set temperature is changed. In the next step 308, timer T
reset m. This corresponds to starting the measurement of the elapsed time from this reference time, with the time when the set temperature was changed as the reference time. Next, in step 501, automatic control is executed. A negative determination is made in step 306, and it is determined in step 309 whether the change flag is set. If a negative decision is made in step 309, the operation proceeds to step 501.

When an affirmative decision is made in step 309, the timer Tm is incremented in the next step 310. In the next step 311, it is determined whether or not the timer Tm is larger than To. While the negative determination is made in step 311, automatic control after step 501 is performed.

If an affirmative decision is made in step 311, a fine adjustment value γ of the correction term E is calculated by the following equation in step 312. γ = K ′ (Tdc−25) This calculated γ is written in the memory. Since K'is a constant larger than 0 and smaller than 1, the adjustment adjustment value γ is smaller than the change (Tdc-25) of the set temperature Tdc from the reference temperature 25 ° C. In the next step 313, the change flag is reset, and in step 314, the correction flag is set. This correction flag represents the fact that the fine adjustment value γ has been calculated. Then, the process proceeds to step 501.

When the fine adjustment value γ is calculated in the previous control as described above, an affirmative decision is made in step 303 in the first routine of the next control, and the routine proceeds to step 315. In step 315, the fine adjustment value γ is added to the correction term E to update the correction term E. The correction flag is reset in step 316, the timer Tm is reset in step 317, and the process proceeds to step 304. As described above, since the correction term E is finely adjusted according to the change in the set temperature and is used as the learning data for the next control, the air-conditioning environment that gradually matches the user's feeling can be realized.

Another embodiment will be described with reference to FIG. In this embodiment, step 312 of FIG.
It is obtained by replacing 01 to step 406 and replacing step 315 with step 407. 7, the same steps as those in FIG. 6 are designated by the same reference numerals and detailed description thereof will be omitted. If an affirmative decision is made in step 311, step 4
At 01, the difference ΔTdc between the set temperature Tdc and 25 ° C. is calculated.
In the next step 402, this difference ΔTd is added to the stack value M to update the stack value M. In step 403, it is determined whether the stacking value M is equal to or larger than the threshold value α. Step 4
If an affirmative decision is made in 03, in step 404 the storage correction term E ′ + β is updated as the storage correction term E ′ and written in the memory. If a negative decision is made in step 403, step 40
In step 5, it is determined whether the stacking value M is less than or equal to the threshold value-α. If a negative decision is made in step 405, the operation proceeds to step 501. If an affirmative decision is made in step 405, the correction term for storage E′−β will be updated to the correction term for storage E ′ and will be written in the memory, and the operation will proceed to the next step 313. When an affirmative decision is made in step 303, the correction term for storage E ′ is written in the correction term E in step 407. Then, it proceeds to step 316. As described above, the correction term is corrected when the accumulated value of the change in the set temperature exceeds the threshold value, so that the air-conditioning environment that is gradually felt by the user can be realized.

[0023]

When the set temperature is changed, the learning data is created based on the change and the subsequent air conditioning control is performed based on the learning data, so that the air conditioning environment in which the user's sensation is learned can be provided. .

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of the present invention.

FIG. 2 is a block diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 3 is a flowchart showing a part of a routine executed by a microcomputer.

FIG. 4 is a flowchart showing the remaining part of the routine executed by the microcomputer.

FIG. 5 is a part of a flowchart of a routine corresponding to another embodiment executed by a microcomputer.

FIG. 6 is a flowchart of a routine executed by a microcomputer according to yet another embodiment.

FIG. 7 is a part of a flowchart of a routine executed by a microcomputer according to still another embodiment.

[Explanation of symbols]

 1 set temperature changing means 2 detecting means 3 control means 4 learning means 10 control unit 11a up switch (set temperature changing means) 11b down switch (set temperature changing means) 12 in-vehicle temperature sensor (detecting means) 15 indicator

Claims (9)

[Claims] 1. A set temperature changing means having an operating portion, and a detecting means for detecting at least the room temperature.
(C) Based on the set temperature data that can be changed by the set temperature changing unit and the detection data from the detecting unit,
In a control device for an air conditioner provided with a control means for controlling the air conditioner, further, (d) based on the fact that the set temperature is raised or lowered by the set temperature changing means when controlling the air conditioner, A learning means for calculating learning data for causing the control means to execute control corresponding to rise and fall of the set temperature and supplying the learning data to the control means when the air conditioner is controlled later A controller for an air conditioner characterized by. 2. The learning means calculates an initial set temperature as learning data, and the control means detects the initial set temperature and the detected temperature from the start of control until the set temperature is changed by the set temperature changing means. The control device for an air conditioner according to claim 1, wherein the control is performed based on the data. 3. The learning means adds a predetermined value to the initial set temperature and adds the predetermined value to the initial set temperature when the accumulated value of the change of the set temperature by the set temperature changing means exceeds a threshold value in the temperature increasing direction. 3. The initial setting temperature is updated by updating the initial setting temperature by subtracting a predetermined value from the initial setting temperature when the accumulated value corresponding to the change in the setting temperature exceeds the threshold value in the temperature decreasing direction. Control device for air conditioner. 4. The air conditioner according to claim 2, wherein the learning means updates the initial set temperature by adding a value smaller than the change of the set temperature by the set temperature changing means to the initial set temperature. Control device. 5. An apparent set temperature display means for displaying an apparent set temperature and an apparent set temperature initialization means for initializing the apparent set temperature to a reference value at the start of control, wherein the apparent set temperature display is provided. The air conditioner control device according to claim 2, wherein when the set temperature is changed from the initial set temperature by the set temperature changing means, the means displays the apparent set temperature obtained by adding the changed amount to the reference value. 6. The control means performs control based on set temperature data, detection data, and an equation including constants, and the learning means adjusts at least one of the constants to obtain learning data. The controller for an air conditioner according to claim 1, further comprising a preset temperature initialization unit that initializes the preset temperature to a reference value at the start of control. 7. The air conditioner is a vehicle air conditioner, and the control means sets a target outlet temperature Xm as Xm = A.Tdc-B.Tr-C.Ta-DQ + E (where Tdc is a set temperature and A is The gain, Tr is the vehicle interior temperature indicated by the vehicle interior temperature sensor as the detection means, B is the gain thereof, Ta is the outside air temperature indicated by the outside air temperature sensor as the detection means, C is the gain thereof, and Q is the solar radiation sensor as the detection means. The detected insolation amount, D is the gain thereof, and E is a correction term.), And the vehicle air conditioner is controlled based on this target blowout temperature. The control device for an air conditioner according to claim 6, wherein the correction term E is corrected to obtain learning data. 8. The learning means adds a predetermined value to the correction term E and adds the correction value E to the correction term E when the stack value corresponding to the change in the set temperature by the set temperature changing means exceeds a threshold value in the temperature increasing direction. 8. The correction term E is updated by updating the correction term E by subtracting a predetermined value from the correction term E when the accumulated value corresponding to the change in the set temperature exceeds the threshold value in the temperature decreasing direction. Control device for air conditioner. 9. The air conditioner control according to claim 7, wherein the learning means supplies the correction term E, which has been changed by a small amount, as learning data each time the set temperature is changed by the set temperature changing means. apparatus.