JPH01172008A - Automatic air conditioner - Google Patents

Abstract

PURPOSE:To arrange so that the most suitable air conditioning state may be obtained at all times, by making a constitution in such a way that the amount of ventilation and the temperature of regulation are automatically changed in response to the number of persons existing in a space where air conditioning air is discharged from a discharge opening, or a position where a person exists. CONSTITUTION:Being seated detection electrodes 61a-64a consisting of, for example, woven cloth plated with nickel, are furnished at the being seated portion positions of respective seats of an automobile, and an electrostatic capacity among these electrodes 61a-64a and body earth is watched by means of sub units 61-64 and a person's being seated or not on each seat is detected. The output signals of respective sub units 61-64 possess temperature regulating means regulating the temperature of air ventilated by means of a ventilating means and are inputted into the CPU of an air conditioner whose discharge opening discharges air whose temperature has been regulated. And a ventilation parameter indicating the standard amount of ventilation of the ventilating means is corrected by means of this CPU in response to the being seated state of persons at respective seats, and the ventilating means is made to be controlled on the basis of the ventilating parameter which has been corrected.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to automatic control of air conditioners.

(Prior Art) Spatial devices have become widespread in recent years, and are now installed not only in theaters, halls, and ordinary homes, but also in most automobiles.

For example, an air conditioner installed in an automobile adjusts the temperature inside the vehicle by sucking in/outside air, cooling or heating it, and then discharging it back into the vehicle. Some of this type of in-vehicle air conditioners are equipped with a temperature sensor to maintain the temperature inside the vehicle at a set temperature.

(Problems to be Solved by the Invention) By the way, in conventional vehicle-mounted air conditioners, no consideration is given to the number of passengers on board or the seating positions of the passengers. For example, if the number of passengers differs, the effect of air conditioning (the apparent effect expressed as the temperature inside the vehicle) will differ.

Furthermore, the amount of air blown to deliver sufficient air to the person will vary depending on the position of the person seated in the vehicle. For example, when cooling the vehicle when there are many passengers on board, the adjusted temperature is set to a low value, and when there are passengers in the rear seats, the amount of air blown is increased.

In conventional vehicle air conditioners, all these adjustments had to be made manually.

An object of the present invention is to provide an automatic air conditioner that requires almost no manual operation.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a blowing means, a temperature adjusting means for adjusting the temperature of the air blown by the blowing means, and a temperature adjusting means for adjusting the temperature of the air blown by the blowing means. An air conditioner equipped with a discharge port that discharges adjusted air, comprising a person detection means for detecting a person present in a space from which air is discharged from the discharge port, and based on detection information of the person detection means. The ventilation means or temperature adjustment means shall be controlled.

(Function) According to this, the amount of air blown and the adjusted temperature can be automatically changed according to the number of people present in the space from which air is discharged, or according to the position where the people are present. In other words,
For example, if the present invention is applied to an air conditioner installed in a car, when there are many passengers, the temperature is adjusted to a lower temperature than the set temperature in consideration of heat generation from the human body, and the temperature is adjusted to a lower temperature than the set temperature when there are many passengers seated in the rear. By blowing air at a higher air volume than the set air volume when the system is in use, optimal air conditioning can be achieved at all times without the need for human intervention.

Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

(Example) FIG. 1 shows a near-conditioning device for an automobile in which the present invention is implemented as an example.

This device is a microcomputer (hereinafter referred to as CPU)
It consists of a control system centered around 1 and a mechanical system centered around near conditioning unit 10.

The near conditioning unit 10 includes an air duct 1
1 and a blower 12 installed in the air duct 11
．． It consists of an evaporator 13 and a radiator 14.

The air duct 11 includes an intake duct 111. An air mix chamber 112 and an exhaust duct 113 are formed.

The intake duct 111 communicates with an outside air intake port 111a and an inside air intake port 111b, and is provided with an intake switching damper 15 for selecting the intake port.

A blower 12 installed in the air intake duct 111 sucks air from the outside air intake port 111a or the inside air intake port 111b and sends it forward.

-12= Air sent by the blower 12 is cooled and dehumidified by the evaporator 3, and heated by the radiator 14. An air mix damper 16 is provided on the back of the radiator 14 to adjust the amount of air heating. In the air mix chamber 112, air cooled and dehumidified by the evaporator 13 and air heated by the radiator 14 are mixed to generate air at a temperature corresponding to the opening degree of the air mix damper 16. That is, when the air mix damper 16 closes the back surface of the radiator 14, low temperature air is generated, and when it is open, high temperature air is generated.

The air mixed in the air mix chamber 112 is sent to the exhaust duct 113.

The exhaust duct 113 is a first exhaust duct 113a.

Second exhaust duct 113b and third exhaust duct 113c
The first exhaust duct 113a communicates with the instrument panel outlet 113d, the second exhaust duct 113b communicates with the defroster outlet 113e, and the third exhaust duct 113c communicates with the floor outlet 113f. . Also,
At the boundary between each exhaust duct and the air mix chamber 112, there are dampers 17, 18, 19 for selecting an air outlet.
It has.

The switching damper 15 is driven by a diaphragm 21a. The diaphragm 21a drives the damper 15 in a direction to close the inside air intake port 111b when atmospheric pressure is applied, and drives the damper 15 in a direction to close the outside air intake port 111a when negative pressure is applied.

Application switching between atmospheric pressure and negative pressure to the diaphragm 21a is effected by a two-boat solenoid valve 21. That is, the solenoid valve 21 applies atmospheric pressure when deenergized and negative pressure when energized to the diaphragm 21a.
to be applied.

Similarly, the damper 17 is driven by a diaphragm 22a, the damper 18 is driven by a diaphragm 23a, and the damper 19 is driven by a diaphragm 24a.

The diaphragm 22a connects to the exhaust duct 113 when atmospheric pressure is applied.
damper 17 in the direction in which a is opened, and in the opposite direction when negative pressure is applied.
The diaphragm 23a drives the damper 18 in the direction to open the exhaust duct 113b when atmospheric pressure is applied, and in the opposite direction when negative pressure is applied, and the diaphragm 24a drives the damper 18 in the direction to open the exhaust duct 113c when atmospheric pressure is applied. When the voltage is applied, the damper 19 is driven in the opposite direction.

The application of atmospheric pressure and negative pressure to the diaphragm 22a is switched by a two-port solenoid valve 22, and the application of atmospheric pressure and negative pressure to the diaphragm 23a is switched by a two-port solenoid valve 23, which applies atmospheric pressure and negative pressure to the diaphragm 24a. Switching is effected by two-port solenoid valves 24, respectively. Each solenoid valve applies atmospheric pressure to the corresponding diaphragm when deenergized.

Applying negative pressure during energization 6 In this embodiment, the negative pressure generated in the intake manifold (denoted as I/M) of the engine is used as the negative pressure applied to each diaphragm.

Solenoid valves 21, 22, 23, and 24-15 are connected to a solenoid driver 2, which selectively energizes and deenergizes these solenoid valves in response to instructions from the CPUI.

The motor 31 that rotates the blower 12 is a motor driver 3b.
The control input terminal of the motor driver 3b is connected to the output terminal of a pulse width modulator (hereinafter referred to as PWM) 3a.

The PWM 3a alternately outputs an H level corresponding to a built-in clock pulse and an L level corresponding to (100-D) pulses according to duty data D (%) given from the CPUI.

The motor driver 3b energizes the motor 31 while the H level is applied from the PWM 3a, and deenergizes it while the L level is applied.

The air mix damper 16 is rotated by a motor 51.

The motor 51 is energized in forward and reverse directions/W4 by the motor driver 5 under instructions from the CPU 1.

The opening degree of the air mix damper 16 is detected by a potentiometer 52.

In this embodiment, the air mix damper 16 is driven in the direction of closing the back surface of the radiator 14 by the forward rotation of the motor 51, and in the opposite direction by the reverse rotation of the motor 51. Damper 1
When the air mix damper 16 fully opens the back side of the radiator 14, the lowest voltage Vmin is output, and when the air mix damper 16 completely closes the back side of the radiator 14, the highest voltage Vmax is output.

The output of potentiometer 52 is given to A/D converter 4. In addition to this, the A/D converter 4 has an outside air intake port 11.
an outside temperature sensor 41 provided in 1a, an inside temperature sensor 42 attached to a room lamp in the center of the ceiling inside the car, and
A solar radiation sensor 43 provided at the top of the instrument panel is connected. The A/D converter 4 converts these outputs into digital data and provides it to the CPUI.

6 is a seating detection unit. This seating detection unit 6
This will be explained with reference to FIG.

The automobile in which the present embodiment is installed has a four-seater capacity, and two people can be seated in each of the front and rear. Occupation detection electrodes 61a and 62a made of nickel-plated woven fabric are provided at the seating area of each seat.

63a or 64a is attached. Since these seating detection electrodes are each insulated from the body ground, the capacitance between each seating detection electrode and the body ground increases when a person is seated at each attachment site.

Subunits 61, 62, 63, and 64 are circuits that monitor the capacitance between each seating detection electrode and body ground to detect whether or not a person is sitting on each seat. Since these subunits have the same configuration, the subunit 64
I will explain about it.

The subunit 64 includes a pulse oscillator 64b2, a frequency-voltage converter 64c, an integrator 64d, and a comparator 64.
Consists of e.

The pulse oscillator 64b is an astable multivibrator using an operational amplifier ○P, and by appropriately selecting the resistance value of each resistor, the capacitance applied to the negative input terminal of the operational amplifier OP, that is, the seating Detection electrode 61a
It oscillates at a frequency proportional to the reciprocal of the product of the capacitance between the body ground and the resistance value of the resistor r. In other words,
The oscillation frequency of the pulse oscillator 64b is the same as that of the seating detection electrode 64.
As the capacitance between a and body ground increases, it decreases. That is, when a person sits on the rear left seat, the capacitance between the seating detection electrode 64a and the body ground increases, so the pulse oscillator 64b oscillates at a low frequency.

The output of the pulse oscillator 64b is sent to a frequency-voltage converter 64c.
given to. The frequency-voltage converter 64c outputs a voltage proportional to the frequency of the output signal of the pulse oscillator 64b and supplies it to the integrator 64d.

The integrator 64d removes minute fluctuations contained in the output signal of the frequency-voltage converter 64c and supplies it to the negative input terminal of the comparator 64d.

The comparator 64d compares this input voltage with the set voltage of the variable resistor VR applied to the positive input terminal, and gives a signal R4 to the CPUI that becomes H level when the former is low and becomes L level when the former is high. .

The set voltage of the variable resistor VR is set to an appropriate value between the output voltage of the integrator 64d when a person is seated on the rear left seat and the output voltage of the integrator 64d when no person is seated. Since this is set, the output signal R4 of the conhaler taro 4e indicates that a person is seated at the H level, and indicates that no person is seated at the L level.

Note that the comparator 64e is provided with hysteresis characteristics in order to prevent chattering when switching between H and L levels.

Based on the same principle as above, the subunit 61 outputs a signal R1 which becomes H level when a person is seated on the front right seat, and becomes L level when there is no seat, and the subunit 62 outputs a signal R1 that becomes L level when a person is seated on the front left seat. The subunit 63 outputs a signal R2 which becomes H level when there is a person seated, and becomes L level when there is no occupant, and the subunit 63 outputs a signal R3 which becomes H level when someone is seated on the rear right seat and becomes L level when no one is seated.
Output.

Referring again to FIG.

The operation unit 7 is provided in the center of the instrument panel, and the operation surface includes air outlet changeover switches 71, 72,
73. Inside/outside air selection switch 74° Temperature setting switch 75
and a mode changeover switch 76.

The changeover switches 71, 72, 73, and 74 are alternate switches that are switched between on and off states each time they are operated, and when in the on state, lamps attached to each switch are lit. In this case, the ON state of the air outlet changeover switch 71 corresponds to the damper 17 being opened, the OFF state corresponds to the damper 17 being closed, the ON state of the air outlet changeover switch 72 corresponds to the damper 18 being open, and the OFF state corresponds to the damper 18 being closed. The ON state of the outlet changeover switch 73 corresponds to the damper 19 being open, the OFF state corresponds to the damper 19 being closed, the ON state of the inside/outside air changeover switch 74 corresponds to internal air suction, and the OFF state corresponds to outside air suction.

The on/off states of these changeover switches are switched by a built-in hard logic circuit, and this hard logic circuit is controlled by the air outlet changeover switches 71, 72 and 7.
3 are all off, that is, dampers 17,
18 and 19 are all prohibited from being closed.

Here, for convenience of explanation, if the data Q indicating the on state (0)/off state (x) of each outlet changeover switch is defined as shown in Table 1, the state due to the operation of each outlet changeover switch is defined as shown in Table 1. The trends are shown in Table 2.

Chapter 1 Table Table 2 The above Tables 1 and 2 should be understood as follows.

For example, the state indicated by Q=3, i.e. switch 7
Even if the switch 73 is operated when only Q.3 is on (Table 1), its state does not change (Q=3
(Table 2), the state shown by Q=5, that is,
Switch 72 and switch 73 are on (
When the switch 73 is operated in the case (Table 1), the state changes to the state shown by Q=2, that is, the state in which only the switch 72 is turned on (Table 2). Furthermore, when the switch 73 is operated in the state shown by Q=4, that is, the state in which the switches 71 and 72 are on (Table 1), the state shown by Q=7, that is, the switch 7
1. Switch 72 and switch 73 transition to an on state (Table 2).

This is because these switches basically operate as alternate switches, but when a single switch that is turned on is operated, turning that switch off closes all dampers, so this is done by hard work. Prohibited by logic circuit.

The temperature setting switch generates data indicating the temperature from 19° C. to 31° C. at 1° C. pitch, and the mode changeover switch 76 generates data indicating OFF, auto mode, or three-step manual mode.

These, data Q indicating the on/off state of each outlet changeover switch 71, 72, and 73, and the inside/outside air changeover switch 7.
Data indicating the on/off state of No. 4, data indicating the set temperature, and data indicating the setting mode are provided to the CPUI.

The CPU controls opening and closing of the dampers 17, 18, and 19 based on data Q that indicates the on/off states of the air outlet changeover switches 71, 72, and 73 given by the operation unit 7, and controls the on/off state of the inside/outside air changeover switch 74. The damper 15 is switched and controlled based on the data shown, and the opening degree of the damper 16 and the speed of the blower 12 are adjusted based on the data showing the set temperature and the data showing the setting mode.

In this case, if data indicating the manual mode is given, the damper 16 is set to the opening degree corresponding to the set temperature, and the blower 12 is operated at the speed corresponding to the manual mode stage.
However, if data indicating auto mode is given, the opening degree of the damper 16 and the rotation speed of the blower 12 corresponding to the set temperature are corrected based on the number of passengers, the difference in air temperature inside and outside, the amount of solar radiation, etc. control.

The flowchart shown in Figures 3a and 3b is based on C
A subroutine for auto mode processing that is executed when PU 1 receives data indicating auto mode from operation unit 7 is shown. Auto mode processing will be explained with reference to these flowcharts.

The CPU reads the signals R1 to R4 given from the seating detection unit 6 in S1 to S6 (S-" has the same meaning as 2 or less corresponding to the number attached to the flowchart) and sets the seating data P1 to P4. That is, signal R1
When it is at H level, the value of data P1 indicating the state of the front right seat is set to "1: Seated", and when it is at L level, the value of data P1 is reset to "0: Not seated". However, when the signal R2 is at H level, the value of data P2 indicating the state of the front left seat is set to "1: Seated".
When the signal R3 is at the L level, the value of the data P2 is reset to "0: Not occupied", and when the signal R3 is at the H level, the value of the data P3 indicating the state of the rear right seat is reset to "1: Occupied". When the signal R4 is at the L level, the value of the data P3 is reset to "0: Not occupied", and when the signal R4 is at the H level, the value of the data P4 indicating the state of the rear left seat is set to "1". :Setting is present'', and when it is at L level, the value of the data P4 is set to ``0:
Reset to ``Not Seated''.

S7 and S8 are steps for setting correction data according to the total number of passengers.

Here, in S7, the total number of occupants j is determined from the sum of the seating data P1 to P4, and in S8, the total number of occupants j is determined from the first duty correction table D1 stored in the internal ROM.
The first duty correction data d1 is set by reading data D I (j) corresponding to Set correction data v1.

The duty correction data is data for correcting the duty data given to the PWM 3a, and the duty data corresponds to the rotational speed of the motor 31.

In other words, in order to speed up air circulation when there are many passengers, the first duty correction table D1 contains the total number of passengers j.
Correction data is written to correct the duty data to a larger value as the value increases.

Further, the opening degree correction data is data for correcting the opening degree data of the air mix damper 16, and the opening degree data corresponds to the amount by which the air mix damper 16 closes the back surface of the radiator. That is, in consideration of heat generation from the human body, correction data is written in the first opening degree correction table v1 that corrects the amount of closing by increasing as the total number of occupants j increases.

S9 and SIO are steps for setting correction data according to the amount of solar radiation.

That is, data D 2 (k) corresponding to the solar radiation amount data k given by the solar radiation sensor 43 is read from the second duty correction table D2 stored in the internal ROM, and the second duty correction data d2 is set. 2 Data V corresponding to the solar radiation amount data k from the opening degree correction table v2
2 (k) and set the second opening degree correction data v2.

The amount of solar radiation acts as a means to heat the air inside the vehicle, similar to the heat generated from the human body described above. Therefore, in order to speed up the circulation of air when the amount of solar radiation is large, the second duty correction table D2 is written with correction data that increases as the amount of solar radiation data k increases. In the correction table v2, in order to suppress a temperature rise when the amount of solar radiation is large, correction data that increases in value as the amount of solar radiation data k increases is written.

These second duty correction table D2 and second opening degree correction table v2 were created based on experiments.

Steps 811 and 812 are steps in which correction data corresponding to the difference in inside and outside air temperature is sent.

28- In other words, in Sll, the difference W between the outside air temperature data Tout given by the outside air temperature sensor 41 and the inside air temperature data Tin given by the inside air temperature sensor 42 is determined, and in S12, the third duty cycle stored in the internal ROM is calculated. Read data D3 (1wl) corresponding to the absolute value of the inside and outside air temperature difference W from the correction table D3 to set third duty correction data d3, and read data corresponding to the inside and outside air temperature difference W from the third opening degree correction table v3. Read V3(w) and enter the third
Set the opening correction data v3.

The correction data written in the third duty correction table D3 corrects the air flow rate to a greater extent as the difference (absolute value) between the inside air temperature and the outside air temperature increases, thereby speeding up the air circulation.

That is, this correction data becomes larger as the absolute value of the difference between the inside air temperature and the outside air temperature, 1%ll, becomes larger.

In addition, the correction data written in the third opening correction table 3 corrects the discharge air temperature higher when the inside air temperature is lower than the outside air temperature, and lowers the discharge air temperature when the inside air temperature is higher than the outside air temperature. to correct. That is, this correction data, both positive and negative, becomes smaller as the value W obtained by subtracting the inside air temperature from the outside air temperature increases.

These third duty correction table D3 and third opening degree correction table v3 were created based on experiments.

S13 and S14 are steps for setting correction data according to the difference between the set temperature and the inside air temperature.

That is, in S13, the difference X between the inside air temperature data Tin given by the inside temperature sensor 42 and the set temperature data T set given by the temperature setting switch 75 of the operation unit 7 is determined, and is stored in the internal ROM in S14. The data D4 (IXI) corresponding to the absolute value of the temperature difference X is read from the fourth duty correction table D4 to set the fourth duty correction data d4, and the data V4 corresponding to the temperature difference X is read from the fourth opening degree correction table v4. (x) is read and the fourth opening degree correction data v4 is set.

The correction data written in the fourth duty correction table D4 corrects the air flow rate to a greater extent as the difference (absolute value) between the inside air temperature and the set temperature increases, thereby speeding up the air circulation.

In other words, this correction data is.

The absolute value IXI of the difference between the inside air temperature and the set temperature increases as the absolute value IXI increases.

In addition, the correction data written in the fourth opening correction table 4 corrects the discharge air temperature higher when the inside air temperature is lower than the set temperature, and lowers the discharge air temperature when the inside air temperature is higher than the set temperature. to correct. That is, the value of this correction data, both positive and negative, decreases as the value X obtained by subtracting the set temperature from the inside air temperature increases.

Steps 815 to S17 are steps for setting correction data according to the number of passengers seated in the rear seats, and when there are passengers in the rear seats, the amount of air delivered is increased to widen the range to which the air is delivered. It also compensates for the influence of the temperature inside the car before the air reaches the rear seats.

First, in S15, when the seating data P3 and P4 are summed to determine the number y of passengers seated in the rear seats, 31
6, the set temperature data T set given from the temperature setting switch 75 of the operation unit 7 and the inside temperature sensor 4
2 is compared with the internal air temperature data Tin given from 2.

At this time, if the set temperature data Tset is lower, cooling operation is performed, so in S17, from the fifth duty correction table D5 and the fifth opening degree correction table v5 for cooling, which are stored in the internal ROM, The data D s (y) or the data V 5 (y) corresponding to the number of seated occupants y is read, the fifth duty correction data d5 or the fifth opening degree correction data v5 is set, and the inside air temperature data Tin is read. If the value is low, the heating operation is started, so in 818, the fifth duty correction table D5 and the fifth opening degree correction table for heating, which are stored in the internal ROM, are calculated from 5°, each corresponding to the number y of passengers seated at the rear. data D 5 (y) or data V
5' (y) and sets the fifth duty correction data d5 or the fifth opening degree correction data v5.

The fifth duty correction table D5 contains correction data that increases as the value of the number y of passengers seated at the rear increases, and the fifth duty correction table V5 for air conditioning contains correction data for the number y of passengers seated at the rear. Correction data that increases as the value of is larger is the fifth opening correction table V5 for heating.
' is written with correction data that decreases as the value of the number y of passengers seated at the rear increases.

In other words, by the time the conditioned air reaches the rear seats, the temperature of the conditioned air is affected by the inside temperature of the car, and the temperature rises during cooling and decreases during heating. Adjust the temperature slightly lower in
In the latter case, the temperature is adjusted slightly higher to improve the "soundness" of air conditioning.

Note that the fifth duty correction table D5. 5th for cooling
The opening correction table v5 and the fifth opening correction table V5' for heating are created based on experiments.

819 to S24 are the sixth switches according to the state of the outlet switching tamper.
This is a step of setting duty correction data.

The state of the outlet switching damper is indicated by the data Q mentioned above, and referring to Table 1 above, if this value is 1 to 3, only one of the switching dampers 17, 18 and 19 is open. and if it is 4 to 6, the switching damper 17,
Any two of 18 and 19 are open,
7, switching dampers 17, 18 and 19 are all open. Therefore, when the data Q is 3 or less, the number of air outlets 2 is set to 1 in S21, when it is 4 or more and less than 6, the number of air outlets 2 is set to 2 in S22 &::, and when it is 7, the number of air outlets 2 is set to 1. In step 323, the number of air outlets Z is set to 3.

In S24, data D 6 (z) corresponding to the number of air outlets Z is read from the sixth duty correction table D6 stored in the internal ROM, and sixth duty correction data d6 is set. The sixth duty correction data d6 is
This is data that increases the amount of air blown as the number Z of air outlets increases, and is the smallest when the number Z of air outlets is 1, and the largest when the number Z of air outlets is 3.

In S25, data f1 (Tset,) corresponding to the set temperature data Tset is read from the standard duty data table f1 stored in the internal ROM to set the standard duty data Do, and the standard opening degree data table f is read.
2, the data f corresponding to the set temperature data T set,
2 Read (Tset) and obtain the standard opening data V. Set.

326, standard duty data D; .

The updated duty data D is calculated from the sum of the first duty correction data dl + the second duty correction data d2 + the third duty correction data d3y, the fourth duty correction data d4, the fifth duty correction data d5, and the sixth duty correction data d6. Opening data■. , the updated opening data V is obtained from the sum of the first opening correction data V1+second opening correction data V2+third opening correction data V3+fourth opening correction data v4 and fifth opening correction data v5.

Note that II IT 1g used in the flowchart is a product symbol.

In steps 327 to S31, the difference between data M indicating the currently set duty and updated duty data D is determined and compared with a predetermined value Ld. When the difference is less than the predetermined value Ld, it is considered that it is within the error range and the process proceeds to 832 or less, but when it exceeds the predetermined value Ld, the data M
is updated to the updated duty data D, and S31
The updated duty data D is output to the PWM 3a to instruct updating of the energizing duty of the motor 31 that drives the blower 12.

In 832 to S35, when the updated opening data V exceeds the maximum value Vmax of the potentiometer 52, it is corrected to that value, and when it falls below the minimum value Vmin, it is corrected to that value.

At 836, data Vin indicating the current opening degree of the air mix damper 16 given by the potentiometer 52 is provided.
and the updated opening data V, and in S37, the difference is compared with a predetermined value Lv. In this comparison, when the error is less than or equal to the predetermined value Lv, it is assumed that it is within the error range and the process returns to the main routine (not shown); however, if it is not, the opening degree of the air mix damper 16 is changed in steps 838 to 343. change.

That is, in 538, the opening degree data Vin of the air mix damper 16 at that time is compared with the updated opening degree data V, and if the former is smaller, the motor driver 5 is instructed to energize the motor 51 in the normal rotation in S39, and the air The mix damper 16 is driven in a direction approaching the back of the radiator 14, and when the former is large, the motor driver 5 is instructed to reversely energize the motor 51 in S41, and the air mix damper 16 is
is driven in a direction away from the back of the radiator 14.

After that, in S40 or S42, the potentiometer 52
The opening degree data Vin of the air mix damper 16 given sequentially is monitored, and when it becomes approximately equal to the updated opening degree data V, the motor driver 5 is instructed to de-energize the motor 51 at 843, and the process returns to the main routine (not shown). Return.

In the embodiments described above, air mixers are used.

Although the temperature of the output air is adjusted by the opening degree of the pump 16, a modification may be considered in which the temperature of the discharged air is adjusted by the cooling temperature of the evaporator 13 and/or the heating temperature of the radiator 14. In that case, for example, the compressor that compresses the cooling medium may be controlled on/off to control the evaporator 1.
The heating temperature of the radiator 14 may be adjusted by adjusting the cooling temperature of No. 3 and controlling the supply of engine cooling water to the radiator 14 on/off.

〔Effect of the invention〕

As explained above, according to the present invention, the amount of air is adjusted according to the number of people or the position of the people by providing a person detection means for detecting people present in the space where adjusted air is discharged. Temperature can be changed automatically. In other words, if the present invention is applied to an air conditioner installed in a car, for example, when there are many passengers, the temperature will be adjusted to a lower temperature than the set temperature in consideration of heat generation from the human body, and if there are people in the back. By blowing air at a higher air volume than the set air volume when the user is seated, optimal air conditioning can be achieved at all times without the need for human intervention.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a near conditioning device for an automobile that embodies the present invention as an example. FIG. 2 is a block diagram showing a detailed configuration of the seating detection unit 6 shown in FIG. 1. 3a and 3b are flowcharts showing part of the operation of the microcomputer 1 shown in FIG. 1. Microcomputer 2: Solenoid driver 3a: Pulse width modulator 3b, 5: Motor driver 1
．． 3a, 3b, 5: (control means) 4: A/D converter 6: seating detection unit (person detection means) 7: operation unit (input means) 1.7: (first and second parameter setting means) 10 : Air conditioning unit 11 : Air duct 111 : Intake duct 11La : Outside air intake port 111b : Inside air intake port 11
2: Air mix chamber 113.113a, 113b, 113c: Exhaust duct 113d, 113e, 113f: Air outlet (discharge port) 1
2 Ni blower 13: Evaporator 14: Radiator 15, 16, 17.1g, 19: Damper 21.22, 23, 24: Solenoid valve 21a
, 22a, 23a, 24a: diaphragm 31.51
: Motor 12, 31 : (Blower means) 1
3.14, 16, 51: (Temperature adjustment means) 41.4
2, 43: Sensor 52: Potentiometer 61
．． 62, 63, 64: subunits 61a, 62a,
63a, 64a: Seating detection electrode (first electrode) 64b:
Pulse oscillator 64d: Integrator 64c: Frequency-voltage converter 64b, 64c, 64d: (Capacitance detection means) 6
4e: Comparator (determination means)

Claims (1)

[Scope of Claims] (1) An air conditioner comprising: a blowing means; a temperature adjusting means for adjusting the temperature of the air blown by the blowing means; and a discharge port for discharging the air adjusted by the temperature adjusting means; ; Parameter setting means for setting a blowing parameter indicating a standard air blowing amount of the blowing means; Personnel detecting means for detecting persons present in a space from which air is discharged from the discharge port; An automatic air conditioner comprising: a control means that corrects based on detection information of a person detection means and controls the air blowing means based on the corrected air blowing parameters. (2) The automatic air conditioner according to claim 1, wherein the control means corrects the air blowing parameter to a value that increases the air blowing amount when the number of people detected by the person detection means is large. (3) The space is an interior of an automobile, and the person detection means is a seating detection means that corresponds to each seat of the automobile and detects whether or not a person is seated on the seat. ) automatic air conditioner described in section 2. (4) When the number of seated persons detected by the seating detection means is large, or when the seating detection means detects whether a person is seated on a rear seat;
correcting the air blowing parameter to a value that increases the air blowing amount;
An automatic air conditioner according to claim (3). (5) The control means corrects the air blowing parameter to a value that increases the amount of air blowing when the number of seated persons detected by the seating detection means is large.
Automatic air conditioner as described in section. (6) The control means corrects the air blowing parameter to a value that increases the air blowing amount when the seating detection means detects whether a person is seated on a rear seat. Automatic air conditioner as described in section. (7) The occupancy detection means includes, for each seat of the automobile, a first electrode and a second electrode that form an electric field passing through at least a portion of the person seated on the corresponding seat; Capacitance detection means for detecting the capacitance between two electrodes; and determination means for monitoring the capacitance detected by the capacitance detection means and determining whether or not the seat is seated based on a change in the capacitance. , an automatic air conditioner according to claim (3). (8) The determination means determines that a person is seated on the seat when the capacitance detected by the capacitance detection means increases, and determines that a person is not seated when the capacitance decreases. ) automatic air conditioner described in section 2. (9) The automatic air conditioner according to claim 1, wherein the parameter setting means includes an input means for instructing an air flow rate, and sets the air blow parameter in accordance with an input from the input means. (10) In an air conditioner comprising: a blowing means; a temperature adjusting means for adjusting the temperature of the air blown by the blowing means; and a discharge port for discharging the air adjusted by the temperature adjusting means; Parameter setting means for setting a temperature parameter indicating a standard adjustment temperature; Personnel detection means for detecting a person present in a space from which air is discharged from the discharge port; and Detection by the person detection means of detecting the temperature parameter. An automatic air conditioner comprising: a control unit that corrects the temperature parameter based on the information and controls the temperature adjustment unit based on the corrected temperature parameter. (11) The control means corrects the temperature parameter to a value that lowers the adjusted temperature when the number of people detected by the person detection means is large.
Automatic air conditioner as described in section. (12) The space is the interior of an automobile, and the person detection means is a seating detection means that corresponds to each seat of the automobile and detects whether or not a person is seated on the seat.
An automatic air conditioner according to claim (10). (13) The control means corrects the temperature parameter to a value that lowers the adjusted temperature when the number of seated persons detected by the seating detection means is large.
12) The automatic air conditioner described in item 12). (14) The control means corrects the temperature parameter to a value that increases the degree of adjustment when the seating detection means detects whether a person is seated on a rear seat.
Automatic air conditioner described in section 2). (15) The control means corrects the temperature parameter to a value that lowers the adjustment temperature when the number of seated persons detected by the occupancy detection means is large, and the occupancy detection means detects whether a person is seated on a rear seat. The automatic air conditioner according to claim 12, wherein when the temperature parameter is being detected, the temperature parameter is corrected to a value that increases the degree of adjustment. (16) The occupancy detection means includes, for each seat of the automobile, a first electrode and a second electrode that form an electric field passing through at least a portion of the person seated on the corresponding seat.
Electrode; Capacitance detection means for detecting the capacitance between the first electrode and the second electrode; and Monitoring the capacitance detected by the capacitance detection means, and detecting whether or not the seat is seated based on a change in the capacitance. The automatic air conditioner according to claim 12, further comprising: determining means for determining. (17) The determination means determines that a person is seated on the seat when the capacitance detected by the capacitance detection means increases, and determines that a person is not seated on the seat when it decreases. ) automatic air conditioner described in section 2. (18) The parameter setting means includes an input means for instructing an adjustment temperature, and sets the temperature parameter in accordance with an input from the input means.
Automatic air conditioner as described in section. (19) In an air conditioner comprising: a blowing means; a temperature adjusting means for adjusting the temperature of the air blown by the blowing means; and a discharge port for discharging the air adjusted by the temperature adjusting means; a standard for the blowing means; a first parameter setting means for setting a blowing parameter indicating a standard air blowing amount; a second parameter setting means for setting a temperature parameter indicating a standard adjustment temperature of the temperature adjusting means;
Parameter setting means; Personnel detection means for detecting persons present in a space from which air is discharged from the discharge port; and correcting the air blowing parameters based on the detection information of the person detection means, and adjusting the air blowing parameters to the corrected air blowing parameters. controlling the air blowing means based on the
An automatic air conditioner comprising: a control means for correcting the temperature parameter based on information detected by the person detection means and controlling the temperature adjustment means based on the corrected temperature parameter. (20) When the number of people detected by the person detection means is large, the control means corrects the air blowing parameter to a value that increases the amount of air blowing, and corrects the temperature parameter to a value that reduces the adjusted temperature. Claim No. 1
Automatic air conditioner described in section 9). (21) The space is the interior of an automobile, and the person detection means is a seating detection means that corresponds to each seat of the automobile and detects whether the occupant is seated on the seat. 1
Automatic air conditioner described in section 9). (22) When the number of seated persons detected by the seating detection means is large, the control means corrects the air blowing parameter to a value that increases the amount of air blowing, and corrects the temperature parameter to a value that lowers the adjusted temperature. An automatic air conditioner according to claim (21). (23) When the occupancy detection means detects whether a person is seated on a rear seat, the control means sets the air blowing parameter to a value that increases the amount of air blowing, and sets the temperature parameter to a value that increases the degree of adjustment. The automatic air conditioner according to claim (21), wherein: (24) When the number of seated persons detected by the seating detection means is large, the control means corrects the air blowing parameter to a value that increases the amount of air blowing, and corrects the temperature parameter to a value that lowers the adjustment temperature. , when the seating detection means detects whether a person is seated on a rear seat, the air blowing parameter is corrected to a value that increases the amount of air blowing, and the temperature parameter is corrected to a value that increases the degree of adjustment. An automatic air conditioner according to claim (21). (25) The occupancy detection means includes, for each seat of the automobile, a first electrode and a second electrode that form an electric field passing through at least a portion of the person seated on the corresponding seat.
Electrode; Capacitance detecting means for detecting capacitance between the first electrode and the second electrode; Monitoring the capacitance detected by the capacitance detecting means, and detecting whether or not the seat is seated based on a change in the capacitance. The automatic air conditioner according to claim 21, further comprising: determining means for determining. (26) The determination means determines that a person is seated on the seat when the capacitance detected by the capacitance detection means increases, and determines that a person is not seated when the capacitance decreases. ) automatic air conditioner described in section 2. (27) The first parameter setting means includes an input means for instructing an air blowing amount, and sets the air blowing parameter according to an input from the input means.
) automatic air conditioner described in section 2. (28) The second parameter setting means includes an input means for instructing the adjustment temperature, and sets the temperature parameter according to the input from the input means.
An automatic air conditioner according to claim (19).