JPH0154205B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a car in which a vehicle interior is treated as two air-conditioning zones, each air-conditioning zone is provided with a temperature control means, and each air-conditioning zone is provided with an operation panel. The present invention relates to an air conditioner control device.

[Conventional technology]

2. Description of the Related Art Conventionally, a car air conditioner control device as disclosed in Japanese Patent Application Laid-Open No. 142751/1983 has been known. The vehicle disclosed in this publication includes a heater unit and a cooler unit on the front side of the vehicle interior, and an air mixer unit on the rear side. By operating the front heater and cooler according to the opening degree of the air mix damper in the rear air mix unit, the air conditioner, heater, and cooler can be operated according to the set temperature of one temperature setting device. The system operates to control the temperature inside the vehicle at a constant level.

Furthermore, the device disclosed in Japanese Patent Application Laid-Open No. 56-2213 has a plurality of air mix units, and allows temperature setting for each air mix unit.
The temperature of multiple air conditioning zones inside the vehicle is adjusted independently.

[Problem that the invention seeks to solve]

Conventional technologies such as those described above operate either a batch control mode in which multiple air conditioners are operated according to one set temperature, or an independent control mode in which multiple air conditioners are operated according to each set temperature. I am doing it.

However, when actually using a conventional device, it is often convenient to be able to selectively use either the collective control mode or the independent control mode. For example, if there is a person in one air conditioning zone who is accustomed to operating the vehicle, if it is possible to switch from independent control mode to collective control mode, the occupants in the other air conditioning zone will not have to make cumbersome settings. You can also enjoy comfortable air conditioning.

In addition, if the occupants of the other air conditioning zone are not satisfied with the integrated control mode, if it is possible to switch from the integrated control mode to the independent control mode, the occupants of the other air conditioning zone can make settings according to their own preferences and feel comfortable. You can get good air conditioning.

Furthermore, in the conventional technology described above, it is assumed that there are always occupants in the other air conditioning zone, so multiple air conditioners are always activated, whether in batch control mode or independent control mode. It was difficult to say that it was efficient from the viewpoint of power saving.

For example, if the vehicle interior is divided into a front zone and a rear zone, there will often be no occupants in the rear zone, and in such cases, if the air conditioner in the rear zone is operating,
Air conditioning power is wasted.

The present invention was made to solve these problems, and in addition to the above-mentioned collective control mode and independent control mode, it is possible to execute an independent control mode in which only one air conditioner is operated, and moreover, each air conditioner can be operated in an independent control mode. To provide a car air conditioner control device that is easy to use and can perform comfortable air conditioning by automatically selecting various control modes according to the operation of an occupant from an air conditioning zone.

[Means for solving problems]

In order to achieve the above objectives, the present invention treats the vehicle interior as two air conditioning zones, and
A car air conditioner control device comprising a first air conditioner and a first temperature setting means in an air conditioning zone, and a second air conditioner and a second temperature setting means in a second air conditioning zone, a first air conditioning requesting means for requesting operation of the first air conditioner in one air conditioning zone; and a collective control requesting means for requesting operation of both the first air conditioner and the second air conditioner. and a second air-conditioning requesting means for requesting operation of the second air-conditioning device in the second air-conditioning zone, and from both the first air-conditioning requesting means and the second air-conditioning requesting means. When there is an air conditioning request, the first
The first air conditioner is controlled according to the temperature setting of the temperature setting means, and the second air conditioner is controlled according to the temperature setting of the second temperature setting means, so that each air conditioning zone is adjusted to each setting. a first control means that executes an independent control mode for controlling the temperature; and when there is an air conditioning request from the collective control request means, the first air conditioner and the a second control means that controls a second air conditioner in conjunction with the second air conditioner and executes a collective control mode in which each air conditioning zone is controlled to the set temperature of the first temperature setting means; and the first air conditioning requesting means. When there is an air conditioning request from the source, the first air conditioner is controlled according to the set temperature of the first temperature setting means, and the first air conditioning zone is controlled to the set temperature of the first temperature setting means. A technical means is adopted in which the third control means executes the independent control mode.

[Effect]

According to the configuration of the present invention as described above, the independent control mode is executed by the first control means, and the first control means executes the independent control mode.
The air conditioner and the second air conditioner are controlled according to their respective set temperatures.

Further, the collective control mode is executed by the second control means, and the first air conditioner and the second air conditioner are controlled according to the set temperature of the first temperature setting means.

Furthermore, the independent control mode is executed by the third control means, and only the first air conditioner is controlled according to the set temperature of the first temperature setting means.

As described above, according to the present invention, three types of control are performed. Moreover, these three control modes
and is automatically selected according to the second air conditioning requesting means and the collective control requesting means provided in the first air conditioning zone.

Therefore, if there is no occupant in the second air conditioning zone, the second air conditioning requesting means will not be operated.
The occupant in the air conditioning zone operates only the first air conditioner by simply operating the first air conditioning requesting means, and
The first air conditioning zone can be air conditioned to a set temperature.

In addition, even if there is an occupant in the second air conditioning zone, if the occupant is not accustomed to operating the air conditioner, the occupant in the first air conditioning zone can control both air conditioners by simply operating the collective control requesting means. It can be actuated to condition both air conditioning zones to the set temperature of the first temperature setting means.

Furthermore, if the occupants in the second air conditioning zone are accustomed to operating the air conditioner or wish to perform their own air conditioning, the occupants in the second air conditioning zone may operate the second air conditioning requesting means. In this way, the first and second air conditioning zones can be air conditioned to their respective set temperatures.

〔Effect of the invention〕

As described above, according to the present invention, there is an independent control mode in which two air conditioning zones are independently controlled to each set temperature, and a collective control mode in which two air conditioning zones are linked and controlled to one set temperature. It is possible to provide air conditioning according to the preferences of the occupant in the second air conditioning zone and air conditioning that does not require the occupant in the second air conditioning zone to operate, depending on the case.

Furthermore, you can also select an independent control mode that controls only the first air conditioning zone to the set temperature, so when there are no occupants in the second air conditioning zone, it can be controlled according to the preferences of the occupants in the first air conditioning zone while saving power. air conditioning can be provided.

According to the present invention, not only can three control modes be provided, but they can also be automatically selected according to the requests from the two air conditioning zones, providing easy-to-use and comfortable air conditioning. can do.

〔Example〕

The present invention will be explained below with reference to embodiments shown in the drawings. Fig. 1 is a layout diagram of an air conditioner showing an example of this. 1 is an air conditioner installed in the front part of the passenger compartment that can cool and heat the air conditioner, and 2 is an air conditioner installed in the rear part of the passenger compartment. Dedicated air conditioner 3 is a heating-only air conditioner installed at the rear. As shown in FIG. 2, inside the air conditioner 1, there are a blower 4 for blowing air, an evaporator 5 for cooling the blown air, a heater core 6 for heating, and an air mix damper 7 for adjusting the ratio of cooling and heating air. We are prepared. The air conditioner 2 also includes a blower 8 for blowing air and a rear evaporator 9 for cooling the air. The heating-only air conditioner 3 includes a blower 10 for blowing air and a rear heater core 11 for heating the blown air. In FIG. 2, reference numeral 12 denotes high-pressure piping of the refrigeration cycle (not shown), which includes a front refrigerant valve (electromagnetic valve) 13 and an expansion valve 14 that control the flow of refrigerant to the evaporator 5, and a rear refrigerant valve that controls the flow of refrigerant to the rear evaporator 9. It has a refrigerant valve (electromagnetic valve) 15 and an expansion valve 16. Reference numeral 17 denotes a piping for engine cooling water sent by a water pump (not shown), and has water valves (electromagnetic valves) 18 and 17 for controlling the flow of hot water to the heater core 6 and rear heater core 11. 20 is a clutch of the refrigeration cycle compressor.

21 and 22 are temperatures TrF and TrR at multiple points in the vehicle interior.
21 with a room temperature sensor that detects and generates a room temperature signal.
22 is installed at a position where the front is not exposed to sunlight, and 22 is installed at a position where the rear is not exposed to sunlight. 23 is an outside air sensor that detects the outside temperature Tam, and 24 and 25 are solar radiation sensors that detect the amount of solar radiation S _F and S _R at the front and rear of the cabin. 25 position is shown.

26 is the air temperature blown from the front evaporator 5
T _EF , 27 is the temperature of the air blown from the rear evaporator 9
T _ER , 28 is the temperature of the air blown from the rear heater core 11
This is a temperature sensor that detects T _HR and generates a signal.

43, is the curtain 433 that partitions the front and rear seats shown in Figure 1 closed, making the front and rear seats each an independent space, or is the curtain open, and the front and rear seats form one space? This is a sensor that detects when the curtain is opened or closed, such as a limit switch. In other words, the heat load of the space to be air-conditioned is different when the curtains are open and when they are closed, so in order to maintain the room temperature at the set room temperature, it is necessary to switch the capacity of each air conditioner according to the condition, and sensors 43 is used as a sensor to detect the state. As will be explained later in this example, when the front and rear air conditioners are operated simultaneously, the effect on the vehicle heat load due to opening and closing of the curtains is considered to be less than when the front and rear air conditioners are operated independently. Therefore, we decided not to change the air conditioner capacity by opening and closing the curtains. However, if more precise room temperature control is required, the air conditioning capacity may be changed as necessary. The curtain 433 may be of a left-right sliding type or may be of a vertically movable type.

29 is a front control panel, the details of which are shown in FIG. 3a. 291 is a room temperature setting section consisting of a digital display and a switch for raising and lowering the set temperature; 292 is a blower switch section for stopping the operation of the front air conditioner and selecting the mode of the front blower; 293 is for controlling the rear air conditioners 2 and 3. This is a switch that allows you to select whether or not to perform all-in-one control at the front desk.

44 is a rear control panel, as shown in FIG. 3b, a rear seat room temperature setting section 441, a rear blower mode selection switch 442, and a switch for canceling when the rear air conditioner is collectively controlled by the front control panel. It consists of 443.

In addition, each switch in each of the above-mentioned control panels is a self-reset type push switch.
Further, the blower switch sections 292 and 442 select four modes: stop (OFF), automatic adjustment (AUTO), low speed (LO), and high speed (Hi). Although not described in detail, the front seat control panel 29 can be configured integrally with an operation lever (not shown) for switching the blowout mode of the front air conditioner 1.

Reference numeral 30 denotes an input circuit section including an A/D converter that changes and holds the above-mentioned sensor and control panel signals so that they can be digitally processed, and sends data to the computer 31.

The digital computer 31 is a single-chip microcomputer that performs arithmetic processing according to a predetermined control program, and is connected to a crystal resonator 32 of several megahertz (MHz), and receives power from the on-board battery to generate a constant stabilized voltage. It is activated by the generated voltage from a stabilized power source (not shown).

The microcomputer 31 includes a ROM that stores control programs, a CPU that performs arithmetic processing according to the contents of this ROM, and temporarily stores various data.
It is a one-chip LSI whose main parts include RAM, an I/O circuit section that adjusts the input/output of various signals, and a clock generation section that generates reference pulses for each process. And this microcomputer 31
The control program performs calculations, judgments, and other processing on signals from various sensors, control panels, etc., and sends command signals to each drive circuit section, which will be described next.

33, 34, and 35 are circuit units that supply power to the blower motors 4, 8, and 10 according to command signals from the computer 31. For example, they convert digital code signals output from the computer 31 into analog voltages, and adjust the base bias of the power transistors. By changing the rotation speed of the blower motor as the collector load, the rotation speed of the blower motor as the collector load is changed steplessly. 36-3
9 operates the refrigerant valve 1 according to the command from the computer 31.
3, 15, and water valves 18, 19, which are normally closed electromagnetic valves. The computer 31 calculates the temperature of the air blown out from the air conditioner 1 to a damper drive unit 40 , which is composed of a motor and a link mechanism that change the opening of the air mix damper 7, or a solenoid valve and a diaphragm that switch between engine negative pressure and atmospheric air. This circuit sends a signal in response to the output of the computer 31 so that the blowout temperature reaches the specified temperature.The circuit converts the digital signal from the computer 31 into an analog voltage, compares it with the signal from the potentiometer 7a of the damper 7, and controls the drive unit 41. Control. 42 is the electromagnetic clutch 2 of the compressor 20 according to the command signal.
This is a circuit that controls connection and disconnection of 0.

The above is the main configuration of the present invention.Although not shown, the front air conditioner 1 includes a suction/outlet switching mechanism, etc., for example, as a manual operation mechanism, but this itself is not the main point of the present invention, and well-known technology is adopted. It is possible.

Next, the operation of the above structure will be explained with reference to the flowcharts shown in FIGS. 4 to 6. This FIG. 4 is a diagram showing the flow of the air conditioner control program of the present invention among the calculation processing of the microcomputer 31. If you activate this air conditioner from the front and rear control panels now,
Execute the arithmetic processing of the control program. That is, the arithmetic processing of the microcomputer 31 performs initial setting, etc., and processes are sequentially performed at a cycle of several hundred milliseconds from the signal input step 100 in FIG.

In the signal input step 100, signals from each sensor and control panel are sequentially inputted via the input circuit 30 and stored in the RAM. Here, when the collective control switch 293 is turned on, the collective control flag is set, and when the release switch 443 is turned on, the collective control flag is reset. This flag is used to determine the state in steps 102 and 105, which will be described later.

Next, in the set temperature calculation routine 100A, according to the rise and fall switch data input from the control panels 43 and 44 and stored in step 100, preset set temperatures TsetFO, TsetRO are calculated each time the switch is pushed.
Add or subtract unit amount, e.g. 0.5℃,
Store as front set temperature TsetF and rear set temperature TsetR. Furthermore, when the switch is pressed,
Addition and subtraction are performed for each of the stored set temperatures TsetF and TsetR to advance the set temperature value. Furthermore, in this step, the set temperature values TsetF and TsetR are
Setting section 291, 441 of each control panel
This includes processing to display the temperature in degrees Celsius as a decimal number.

Next, in step 101, it is determined whether the blower switch on the front control panel is in the OFF mode, that is, whether a command to operate the air conditioner has been issued from the front panel 29. if,
If YES, proceed to step 102; if NO, proceed to step 103. In step 103, it is determined whether a command to operate the air conditioner has been issued on the rear control panel. If YES, proceed to step 104; if NO, proceed to step 105. This step 105 is executed when the blower switch is manually operated on either the front or rear control panel to a mode other than the OFF mode, and when the front and rear air conditioners are operated at the same time.

Step 105 determines whether the front collective control switch 294 of the front panel 29 has been pressed, that is, the rear air conditioner 23 has been switched to the rear control panel 4.
Determine whether to control using the front control panel instead of using 4. If the front batch control mode is selected, the process proceeds to step 106; if NO, the process proceeds to the front required heat amount calculation subroutine of step 107.

As described above, steps 101, 102, 10
At 3,105, a control mode is determined, and as a result, three loops shown from each of symbols 1000, 2000, and 3000 to 4000 are processed to execute the following three control modes.

Loop 1 (1000-4000) - Front air conditioner control. Only the front air conditioner 1 operates to adjust the temperature.

Loop 2 (2000-4000) - Front and rear air conditioner control. The front and rear air conditioners 1, 2, and 3 are operated to adjust the temperature. In this case, whether the rear air conditioners 2 and 3 are placed under subordinate control of the front air conditioner 1 or under independent control is determined by operating the front collective control switch 294 and the rear collective control release switch 443. .

Under subordinate control, in step 106, the air volume control mode of the blowers 8, 10 of the rear air conditioners 2, 3 is selected as "AUTO" and this is stored. Furthermore, the value of the front set temperature TsetF is stored as the stored value of the rear set temperature TsetR.
Therefore, in loop 2, each air conditioner is controlled so that the temperature inside the vehicle reaches the temperature set on the front control panel 29.

Under independent control, step 106 is passed, and the front air conditioning zone, which is assigned to the front air conditioner 1, and the rear air conditioning zone, which is assigned to the rear air conditioners 2 and 3, are maintained at set temperatures TsetF and TsetR, respectively. The temperature is adjusted accordingly.

Loop 3 (3000-4000) - Rear air conditioner control, only rear air conditioners 2 and 3 are operated to adjust the temperature.

When controlling the temperature of only one of the air conditioning zone or the rear air conditioning zone, the amount of heat supplied from the air conditioner 1 or the air conditioners 2 and 3 to the other air conditioning zone is adjusted. In this embodiment, the front air-conditioning zone and the rear air-conditioning zone can be separated by a transparent or translucent curtain 433 having relatively wind-blocking properties. curtain 4
33 is designed to reduce the ventilation between the front and rear air conditioning zones in the upper space of the front seat backrest. Therefore, when the curtain 433 is open compared to when it is closed, only a small amount of heat is required to compensate for the amount of heat escaping to other air conditioning zones.

The details of loops 1 to 3 will be explained below.

First, in step 107, the amount of heat _QF required to bring the front seat to the set room temperature is calculated using equation (1).
In the next step 108, the amount of heat Q _R required to bring the rear seat to the set room temperature is calculated using equation (2).

Q _F = Kq・W _OF (KsetF, TsetF−KrF・TrF −KsF・S _F −KamF・Tam＋C _F −TrF)
...(1) Q _R = Kq・W _OR (KsetR・TsetR−KrR・TrR −KsR・SR−KamR・Tam＋C _R −TrR)
...(2) In equations (1) and (2), Kq, W _OF , W _OR ,
KsetF, KsetR, KrF, KrR, KsF, KsR,
KamF and KamRGFGR are constants determined by the physical properties of the air, the body structure of the target vehicle, etc., and are specifically determined based on actual vehicle test results in order to adjust the temperature of each air conditioning zone partitioned by the curtain 433.

The next step 109 is the front required heat amount Q _F
This is a subroutine for determining command signals to be sent to each drive circuit to operate the front air conditioner 1 in order to obtain the following.The details are shown in FIG. When the process moves to this subroutine, the process starts from step 198. In step 198, it is determined whether the front blower switch 292 is in the AUTO mode. If the result is YES, proceed to step 200; if NO, it is the manual blower fixing mode, so proceed to step 199, fix the value of the front blower air volume command signal W _F to the air volume selected by the switch, and proceed to step 200. Jump to 201. In AUTO mode, step 200 sets the front room temperature.
The air volume W _F is automatically determined based on the difference between TsetF and the front room temperature TrF, and the air volume is calculated using a preset function formula such that the larger the temperature difference, the larger the air volume. Next, in step 201, the determined air volume is
Blowout temperature required to obtain the required heat amount Q _F at W _F
TaoF has been calculated, and in the next step 202, the opening degree _SW of the air mix damper 7 necessary to obtain the required outlet temperature TaoF is determined. Next step 2
03 to 205 are related to front water valve control, and the value of damper opening _SW is the same as that of heater core 6.
When the value _SW = 0% (MAxCOOL), the water valve 18 is closed, and when the value is 0% or more, the water valve 18 is closed.
The content of the front water valve command signal is determined to open the front water valve.

After the above processing, the subroutine is extracted and the process proceeds to the next processing, that is, the rear air conditioner control subroutine (step 110). Details of this subroutine are shown in FIG. The subroutine process starts from step 300, and first the amount of heat required to air condition the rear is calculated.
Determine whether Q _R is positive or negative, that is, whether cooling or heating is required. If cooling is required, step 320; if heating is required, step 32
Proceed to 1. In the cooling mode, step 32
0 determines whether the rear blower mode is AUTO or manual. And when AUTO, step 301
If it is manual, proceed to step 322. In step 322, the rear cooler blower air volume command signal is applied to the air volume specified on the rear control panel 44.
At the same time as fixing the value of W _RC , set W _RH = 0 to stop the heater blower. And step 3
Proceed to 02. Step 301 for AUTO
Then, the air volume command signal _WRO is automatically determined based on the difference between the set room temperature TsetR and the rear room temperature TrR, and the process proceeds to the next step 302. In this step 302,
Calculate the outlet air temperature TaoR required to obtain the required heat amount Q _R at the determined air volume W _RC . In the next steps 304 to 307, steps are taken to obtain the desired outlet temperature TaoR without frosting the rear evaporator 9.
A command signal for controlling the rear refrigerant valve 15 is determined. In other words, the blowout air temperature _TER of the rear evaporator 9 is the required blowout air temperature determined by calculation.
When the temperature is lower than TaoR, the rear refrigerant valve 15 is closed, and in the opposite case, it is determined whether the rear evaporator 9 is frosted, that is, whether the T _ER is below 0°C, and when the temperature is below 0°C, the valve 15 is closed. The content of the command signal is determined so that the valve 15 is closed, and if not, the valve 15 is opened. After this process, step 30
At step 8, a command signal is determined to close the rear water valve 19 in order to stop supplying hot water that is not needed for cooling. Then exit from this subroutine.

On the other hand, in step 300, it is determined that heating is necessary.
If steps 321 and below are executed, step 32
1,323,309, rear blower mode
It is determined whether it is AUTO or manual, and depending on the result, the rear heater blower command signal _WRH is determined using the same method as explained in steps 322 and 301, and at the same time, in order to stop the cooler side blower that is not used for heating.
Set W _RC = 0 and proceed to the next step 310. Here, the temperature TaoR of the air blown out from the air conditioner 3 is calculated, and in the next steps 311 to 313, the rear water valve 19 is controlled to obtain the air temperature TaoR. In other words, when T _HR < TaoR, valve 19 is opened,
In the opposite case, a command signal is determined to control the valve to close.
After the processing, a command signal is determined to close the rear refrigerant valve 15 in order to avoid unnecessary cooling in step 314, and this subroutine is exited.

After the above subroutine processing at step 110, the process proceeds to the clutch control routine at steps 111, 119, and 120 in FIG. Here, the front
When both rear refrigerant valves 13 and 15 are closed,
Since there is no need to operate the compressor, a command signal is determined to shut off the clutch 20, and to turn on the clutch 20 when either valve 13 or 15 is open. Next step 121
Then, command signals such as the A/M damper opening degree, each blower air volume, and valve ON/OFF determined in each process up to this point are output to each drive circuit 33 to 40 and 42.

The above explains how to adjust the front air conditioner 1 and the rear air conditioners 2 and 3 simultaneously and independently, and rationally adjust each air conditioner to the set room temperature and air volume mode instructed by the front control panel 29 and rear control panel 44. It operates.

Next, the operation when the front collective control switch 294 of the front panel 29 is activated will be explained. When the switch 294 sends the batch control signal to the computer 31, a determination is made in step 105 in FIG. 4, and the process in step 106 is executed. Here, the rear room temperature settings
At the same time as replacing TsetR with the front setting TsetF, the rear air volume control is set to AUTO mode, and the process proceeds to step 107, where the above-described process is executed. Therefore, in the batch control mode, the rear seats are also controlled to the room temperature set on the front control panel. At this time,
The set temperature display on the rear control panel 43 is the same value as the front, the blower mode is also set to AUTO, and switch operations of the blower setting section 441 and blower selection section 442 are no longer accepted. To cancel collective control, the switch 443 can be pressed.
Note that, if necessary, instead of using this switch 443, the switch may be released when any switch on the rear control panel 44 is operated.

Next, start the air conditioner using the front control panel 29 (the blower mode on the rear panel is OFF).
).

This is the case when going from step 101 to step 102 in FIG. Step 102
Then, it is determined whether batch control is to be performed or not. If YES, the process proceeds to step 106, where the front and rear seat air conditioners are controlled by the front panel 29, as described above. If it is not batch control, the process proceeds to step 112, where it is determined whether the front and rear seats are separated by a curtain 433. This determination is made using the signal from the sensor 43, and when the curtain is closed, the front required heat amount calculation subroutine in _step 107
Then, in the next front air conditioner control subroutine step 114, the air mix damper opening degree and each valve are controlled, and the next rear air conditioner stop routine 115 is executed, and the process proceeds to step 111. Specifically, in step 115, a command signal is set to stop the rear blowers 8 and 10 and close the valves 15 and 19.

When the curtains are opened in step 112, the space to be covered by the front air conditioner 1 includes the rear seats or a part of the rear seats.
When calculating the required amount of heat, change the calculation formula to increase the amount of heat. In other words, when opening the curtain, step 11
Using the calorific value calculation formula modified in 3, the required calorific value Q _F
The process proceeds to step 114. Here, the calculation formula in step 113 is basically the same as formula (1), but
The values of constants such as KsetF and C _F are set to different values in advance.

As you can see from the above explanation, front panel 2
When the air conditioners are started (rear OFF) at step 9, it is also possible to control the rear air conditioners from the front using the collective control switch 294.Also, even when only the front air conditioners are operating, the front Since the air conditioning capacity is automatically controlled depending on the state of the curtains that separate the seats and the rear seats, the room temperature in the front seats can always be controlled to the set room temperature.

Next, the processing of loop 3 when only the rear air conditioner (front OFF) is operated, that is, when the rear air conditioners 2 and 3 are operated on the rear panel 44, will be described. In this case, the process goes from step 103 to step 104. Step 1
At steps 04, 108, and 116, the required amount of heat Q _R is determined according to the state of the curtain, as in loop 1, and at step 117, the air conditioners 2 and 3 are activated to release the amount of heat Q _R.
At step 118, the front air conditioner 1 is stopped, and the process proceeds to step 111. The calorific value calculation formula in step 116 is _as follows: (2)
It is the same as the expression. The specific processing contents of step 118 include stopping the front blower 4 and stopping the valve 1.
3, 18 to close the command signal. Therefore, the rear air conditioner 23 is controlled by the rear panel 44.

Note that after the output step 114 processing, processing related to other air conditioner control such as switching between intake and blowout of the front air conditioner 1 (not shown) can also be executed.

The present invention can be implemented by the embodiments described below.

Judgment of each control, for example, steps 203 and 20
6, 300, 304, 305, and 311, it is natural to provide appropriate hysteresis to prevent hunting and stabilize control.

If all blowers are automatically controlled, values such as the required blowing temperature (TaoF, TaoR) of each air conditioner may be used instead of determining each air volume based on the difference between the set room temperature and the room temperature.

Instead of controlling the outlet air temperature of the cooling air conditioner by opening and closing the refrigerant valve 15, an EPR or the like that can change the set pressure may be used. In addition, the hot water valve 19 adjusts the air temperature of the air conditioner dedicated to heating.
Of course, instead of controlling by opening and closing, a variable flow rate valve may be used for control.

In the rear seat control panel 44, for example, a rear blower mode selection switch 44 can be used, even if the collective control release switch 443 is not specially provided.
In step 2, by operating any mode switch other than the OFF position, the computer 31 may determine the operation in steps 102 and 105, thereby canceling the collective control.

[Brief explanation of drawings]

The attached drawings show one embodiment of the present invention, in which Fig. 1 is a schematic cross-sectional view of a vehicle showing the arrangement of air conditioners 1, 2, and 3, Fig. 2 is an overall configuration diagram, and Fig. 3 a and b are respective controls. FIG. 4 is a flowchart showing a computer control program, FIGS. 5 and 6 are flowcharts of main parts of FIG. 4, and FIG. 7 is a block diagram of the present invention. 1, 2, 3... Air conditioner, 21, 22... Temperature sensor, 29, 44... Control panel including a temperature setting device and operating device, 31... Digital computer.

Claims (1)

[Claims] 1. The vehicle interior is treated as two air-conditioning zones, and the first air-conditioning zone is equipped with a first air-conditioning device and a first temperature setting means, and the second air-conditioning zone is equipped with a second air-conditioning device. and a second temperature setting means, the first air conditioning requesting means requesting operation of the first air conditioner in the first air conditioning zone; and the first air conditioner. and collective control requesting means for requesting operation of both the air conditioner and the second air conditioner, and comprising a second air conditioning request means for requesting operation of the second air conditioner in the second air conditioning zone, When there is an air conditioning request from both the first air conditioning requesting means and the second air conditioning requesting means, the first
The first air conditioner is controlled according to the temperature setting of the temperature setting means, and the second air conditioner is controlled according to the temperature setting of the second temperature setting means, so that each air conditioning zone is adjusted to each setting. a first control means that executes an independent control mode for controlling the temperature; and when there is an air conditioning request from the collective control request means, the first air conditioner and the a second control means that controls a second air conditioner in conjunction with the second air conditioner and executes a collective control mode in which each air conditioning zone is controlled to the set temperature of the first temperature setting means; and the first air conditioning requesting means. When there is an air conditioning request from the source, the first air conditioner is controlled according to the set temperature of the first temperature setting means, and the first air conditioning zone is controlled to the set temperature of the first temperature setting means. and third control means for executing an independent control mode.