JP2501901B2 - Automotive air conditioner - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a vehicle, which operates a plurality of air conditioners with electric power from a vehicle-mounted power supply.

2. Description of the Related Art Japanese Patent Application Laid-Open No. 58-1162 discloses a vehicle air conditioner of this type.
The ones disclosed in the PR No. 16 and JP-A-58-194612 have been proposed. That is, in the former case, the temperature of the seat is detected, and if the temperature is extremely low, the set temperature of the heating device arranged on the seat is set to a high temperature, and if it becomes a stable state, the set temperature of the heating device is originally set. By lowering the temperature to the set temperature, passenger comfort is improved. Also, in the latter case, when the engine cooling water temperature is low and heating by the air conditioner is difficult, when the outside temperature is low, the seat heating device is activated according to the seating position of the occupant, and thereby the immediate effect is achieved. To heat the room.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention When a plurality of heating devices are selectively operated depending on the seating condition such as which seat an occupant is seated on and the temperature condition of the heating device, depending on the seating condition and the temperature condition, all the heating devices may be operated. May operate simultaneously, and the total amount of power consumption may exceed the allowable power amount of the vehicle-mounted power source, making it difficult to properly operate a plurality of heating devices.

Although the heating device has been described as an example here, the same problem occurs even if the device is a cooling device that is operated by electric power.

Means for Solving the Problems In the vehicle air conditioner provided with a plurality of heating and cooling devices for performing at least one of heating operation and cooling operation by the power of the vehicle-mounted power source, the use priority of the cooling and heating devices is set in advance, A combination is calculated in which the sum of the power consumptions added from the set priority of use is the closest value to the permissible power within the permissible power of the on-vehicle power supply, and a plurality of cooling and heating devices are calculated based on the calculation result. A control device for selectively operating is provided.

Action A combination of air-conditioning equipment that calculates the sum of power consumption from the set priority of use of multiple air-conditioning equipment and the sum of the power consumption is the value that is the closest to the permissible power within the permissible power of the vehicle power supply. Then, electric power is supplied to the cooling and heating equipment to be the combination to drive the equipment.

Embodiment (See FIGS. 1 to 4 and Table 1) In this first embodiment, a plurality of cooling / heating devices B are provided with a heating steering 1, a heating seat 2, a heating knee, a heating door 4, a heating carpet 5, and a heating panel 6. The heating instrument panel 7, the heating ceiling 8, the heating sheet 9 and the like. Each of these cooling and heating devices 1 to 9 is connected to an in-vehicle power supply 11 via a control device 10.

The heating steering 1 is arranged on a steering wheel that is held by an occupant.

The heating seat 2 is divided into seat cushions so as to warm the thighs of an occupant seated in the front and rear seats.

The heating rug 3 is divided and placed above the rear seat so that an occupant seated in the rear seat can hang it on the fold.

The heating door 4 is divided into the vehicle body side including the door corresponding to the left and right seats of the front and rear seats in the vehicle width direction side so as to prevent cold radiant heat from the outside of the vehicle from entering the vehicle interior. Has been done.

The heating carpet 5 has a front floor divided into left and right sides and a rear floor left and right so as to warm the feet of passengers.

The heating panel 6 is divided into left and right lower parts of the instrument panel so as to warm the knees of the front seat occupant.

The heating instrument panel 7 is divided into left and right parts above the instrument panel so as to prevent cold radiant heat from the outside of the vehicle from entering the vehicle interior.

The heating ceiling 8 is divided into front, rear, left and right of the vehicle body roof so as to prevent cold radiant heat from the outside of the vehicle from entering the vehicle interior.

The cooling seat 9 is divided and arranged under the seat cushions on the left and right of the front seat so as to prevent sweating of the thighs of the occupant.

Here, in each of the divided air-conditioning equipments 2 to 9, as shown in FIG. 3, the one corresponding to the right front seat (driver's seat) is, for example, the heating seat 2-1. An arithmetic number "1" with a hyphen is added after the arithmetic number. The number corresponding to the left of the front seat is, for example, like the heating sheet 2-2, an arithmetic number "2" with a hyphen added after the arithmetic number representing the air conditioning equipment. For example, the heating seat 2-
As shown in Fig. 3, the arithmetic number "3" with a hyphen is added after the arithmetic number representing the air conditioning equipment. For the one corresponding to the left rear seat, for example, like the heating sheet 2-4, an arithmetic numeral "4" with a hyphen after the arithmetic numeral representing the air conditioning equipment is attached.

The control device 10 is configured in a microcomputer, and the use priority order 12 is set in advance by being stored in the memory of the microcomputer as a system base. By turning on the main switch 16, the use priority order 12 is set to the set use priority order 12. temperature sensor 17 _1, 17 _2-1, ..., 17 the temperature of the heating and cooling devices each 1-9 detected by the _n T _1, T _2-1, ..., T _n
(Hereinafter, simply the detected temperature T ₁ , T _2-1 , ...
The temperature information indicating whether T _n has reached the set temperature T _s1 , T _s2-1 , ..., T _sn , the seat switch 18 ₁ on the front seat right side (driver's side), the front seat left side The seat switch 18 _{2 of} the rear seat, the seat switch 18 ₃ on the right side of the rear seat, and the seat switch 18 ₄ on the left side of the rear seat take into account the passenger seating position information, etc., which has detected where in the seat the passenger is seated. Is a system that is preset as another system base, and calculates a combination in which the sum A _{M of the} power consumptions of the cooling and heating devices 1 to 9 to be used is the closest value within the allowable power amount of the vehicle-mounted power supply 11, Based on the calculation result, the cooling and heating devices 1 to 9 are selectively operated by the power of the vehicle-mounted power supply 11.

The on-vehicle power supply 11 is configured as a battery that charges electricity generated by a generator (not shown) by rotating the engine (not shown).

The operation of the first embodiment described above will be described in detail with reference to the flow chart shown in FIG.

First, step 101 is a preparatory work. Specifically, the use priority order 12 as shown in Table 1 below is stored in the memory of the microcomputer as a system base. The use priority 12 is "correspondence between each cooling / heating equipment 1 to 9 and part number", "correlation between each part number and power consumption", and "correlation between passenger seating position and part number". ing.

Here, in the "correspondence between each air conditioner 1 to 9 and part number", the heating steering 1 is a part 1, the heating seat 2-1 is a part 2-1, the heating seat 2-2 is a part 2-2, and heating. The parts attached to the cooling / heating devices 1 to 9 are the parts 3-3 for the lap 3-3, the parts 3-4 for the heating lap 3-4, and the part 4-1 for the heating door 4-1. Therefore, it is assumed that the cooling and heating devices 1 to 9 are associated with the components 1 to 9. Further, the use priority order 12 of each of the components 1 to 9 set in the microcomputer is, for example, the component 1 as the first
Position, part 2-1 is second, part 2-2 is third, part 2
-3 is the fourth place, and it is determined from an empirical rule which part of the passenger compartment is warm and comfortable when the passenger gets on the board.

In the "correlation between each part number and power consumption", the power consumption of the component 1, the component 2-1, the component 2-2, ... Is stored. In the following explanation, it is usually expressed by current, not electric power, when the battery 11 is 12V in a passenger car.
When the power is expressed, the value obtained by multiplying the voltage of 12V by the current becomes the power, and thus is expressed by the current for the sake of easy understanding. For example, heating steering 1
If the consumption current amount A ₁ of A is 8 A, the component 1 = 8, and if the consumption current amount A _2-1 of the heating sheet _2-1 is 5 A, the equipment 2-1 = 5 is stored.

In the "correspondence between occupant seating and part number", each of the parts 1 to 9 to be operated is determined according to the seated position of the occupant. For example, when the occupant is seated in the driver's seat based on the occupant seating position information from the seat switches 18 ₁ , 18 ₂ , 18 ₃ , 18 ₄ , parts 1 (heating steering) and parts 2-1 (around the driver's seat) Heating sheet), part 4-1 (heating door), part 5-1 (heating carpet), part 6-1 (heating panel), part 7-1 (heating instrument panel), part 8-1 (heating ceiling) Is selected.

In the next step 102, it is determined whether the main switch 16 for operating the vehicle air conditioner is set to ON, OFF, or AUTO. main switch
If 16 is on, go to step 104. If the main switch 16 is set to auto, the operation proceeds to step 103, and the operation mode of the air conditioner (not shown) that feeds the conditioned air is determined, and the operation mode is the ventilator mode VENT or the bilevel. If the mode is B / L, the process returns to step 102 without proceeding to the subsequent steps, and only if the mode is heat mode HEAT, step 104
Proceed to.

In step 104, the usage priority 12 is read from the system base of the microcomputer into the sub memory for temporary storage of the microcomputer.

In step 105, the terminal voltage of the battery 11 is 1 from the low voltage side.
When the voltage rises to 1.8V or more, it is defined as ON, and 1 from the high voltage side.
When the voltage drops below 1.6V, it is defined as off, and battery 11
The on / off state of is determined. Only when the battery 11 is on, proceed to the next step 106.

In step 106, the battery 1 that can be used in parts 1 to 9
Read the allowable current amount A ₀ (allowable power amount) of 1. The allowable current amount A ₀ is a value obtained by subtracting the current consumption amount A _a currently used by the air conditioner, the lamp, the engine, etc. from the maximum allowable current amount A _MAX (rated current amount) of the battery 11 (A ₀ =
A _MAX −A _a ). For example, assuming that the blower fan of the air conditioner is driven by the battery 11, first the maximum allowable current amount A _MAX of the battery 11 is calculated, and then the blower fan current consumption amount A applied to the blower fan A
_FAN (A _a ) is calculated, and the allowable current amount A ₀ of the battery 11 is calculated as A ₀ = A _MAX −A _FAN , and the allowable current amount A ₀ is stored in the sub memory of the microcomputer.

In step 107, the occupant seating position information is read from the detected states of the seat switches 18 ₁ , 18 ₂ , 18 ₃ and 18 ₄ . That is, the seat switch 18 ₁ , 18 ₂ , 183 ₃
Each of 18 _{4 is} set to = 1 and the seat switches 18 ₁ , 18 ₂ , 18 ₃ and 18 ₄ which are turned off when the occupant is absent (not seated) are set to = 0 and stored in the sub memory of the microcomputer.

In step 108, the temperature information of each of the cooling and heating devices 1-9 is read. That is, each detected temperature _{T 1, T 2-1, ......,} T n is the set temperature T _s1, T _S2-1, ......, respectively, which has reached the T _sn = 1, respectively has not reached = 0, and stored in the sub memory of the microcomputer.

In step 109, the use priority order 12 is corrected based on the on / off states of the seat switches 18 ₁ , 18 ₂ , 18 ₃ and 18 ₄ read in step 107, that is, the passenger seating position information “1” or “0”. I do. For example, the occupant is seated in the driver's seat and the right rear seat, and the seat switches 18 ₁ and 18 ₃ are turned on.
If the seat switches 18 ₂ and 18 ₄ are turned off, from the original use priority order 12 shown in Table 1, the parts 2-2 and 2-4 marked with “x” in the remark 1 column of Table 1 …… is excluded and parts 2-3 and 3-3 are marked with “○” in the remark 1 column of Table 1.
.. is moved forward to correct the original use priority 12 shown in Table 1 (The corrected use priority 12 is remark 1
Only the ones marked with a "○" in the column will be moved up.

In step 110, the usage priority order 12 is corrected based on the temperature information read in step 108. For example, the detected temperatures T ₁ , T _4-1 and T _{4-2 of} parts ₁ , _4-1 , _4-2 are the set temperature T
_{If s1} , T _s4-1 and T _s4-2 have been reached and the temperature information of the components 1, 4-1, 4-2 is “0”, the usage priority after correction in step 109 From 12, the parts 1,4-1 marked with "x" in the remark 2 column of Table 1 are removed, and the parts marked with "○" in the remark 2 column of table 1 2-3,3-3 ... The use priority order 12 is corrected again by moving up the ... (The use priority order 12 after this re-correction is the order in which only those marked with "○" in the remark 2 column have been moved up).

In step 111, the total sum A _M of the current consumption amounts A _{1 to} A ₉ of the respective parts 1 to 9 for which use is decided is calculated from the use priority order 12 recorrected in step 110, and this total sum A _M is calculated. Step
The combination having the closest value within the allowable current amount A ₀ of the battery 11 obtained in 106 is calculated.

For example, in detail based on the remark 2 column of Table 1, each of the first to seventh parts of the re-corrected use priority 12 is 2-
3,3-3,4-3,5-1,5-3,6-1,6-3 Current consumption A _2-3 , A
_3-3 , A _4-3 , A _5-1 , A _5-3 , A _6-1 , A _6-3 are sequentially read out from the sub memory by the function of the CPU of the microcomputer and added together, and the added sum Whether or not A _M is within the allowable current amount A ₀ is determined, and use / non-use of each of the components 1 to 9 is determined. Specifically, the current consumption amounts A _2-3 and A _{3-3 of} the first-order component 2-3 and the second-order component 3-3 are added.

A _2-3 + A _3-3 = A _M-1 …… Determines whether the sum A _M-1 of this formula is within the allowable current amount A ₀ , and the sum A _{M-1 of the} formula is the allowable current amount. If it is within A ₀ , the calculation proceeds, and if the sum A _M-1 of the expressions exceeds the allowable current amount A ₀ , the calculation is stopped and the first-ranked component 2-3
Only decide to use.

In order for the above-mentioned total sum A _M-1 to proceed within the allowable current A ₀ , the current consumption amount A _4-3 of the third-ranked component _4-3 is added to the total sum A _M-1 of the equation.

A _M-1 + A _4-3 = A _M-2 …… Determines whether the sum A _M-2 of this formula is within the allowable current amount A ₀ , and the sum A _{M-2 of the} formula is the allowable current amount If it is within A ₀ , the calculation proceeds, and if the sum A _M-2 of the formula exceeds the allowable current amount A ₀ , the calculation is stopped and the first and second parts 2-3 , 3-3 only.

, In order for the above-mentioned total sum A _M-2 to proceed within the allowable current amount A ₀ , the current consumption amount A _5-1 of the fourth-ranked component _5-1 is added to the total sum A _M-2 of the formula. .

A _M-2 + A _5-1 = A _M-3 …… Determines whether the sum A _M-3 of this formula is within the allowable current amount A ₀ , and the sum A _{M-3 of the} formula is the allowable current amount If it is within A ₀ , the calculation proceeds, and if the sum A _M-3 of the equation exceeds the allowable current amount A ₀ , the calculation is stopped and the first to third parts 2-3, Decide to use only 3-3 and 4-3.

, In order for the above-mentioned total sum A _M-3 to proceed within the allowable current amount A ₀ , the current consumption amount A _5-3 of the fifth-ranked component _5-3 is added to the total sum A _M-3 of the formula. .

A _M-3 + A _5-3 = A _M-4 …… Determines whether the sum A _M-4 of this formula is within the allowable current amount A ₀ , and the sum A _{M-4 of the} formula is the allowable current amount If it is within A ₀ , the calculation proceeds, and if the sum A _M-4 of the equation exceeds the allowable current amount A ₀ , the calculation is stopped and the first to fourth parts 2-3, Decide to use only 3-3, 4-3, 5-1.

, In order for the above-mentioned total sum A _M-4 to proceed within the allowable current amount A ₀ , the current consumption amount A _6-1 of the sixth-ranked component _6-1 is added to the total sum A _M-4 of the formula. .

A _M-4 + A _6-1 = A _M-5 …… Determines whether the sum A _M-5 of this formula is within the allowable current amount A ₀ , and the sum A _{M-5 of the} formula is the allowable current amount A If it is within A ₀ , the calculation proceeds, and if the sum A _M-5 of the formula exceeds the allowable current amount A ₀ , the calculation is stopped and the first to fifth parts 2-3, Decide to use only 3-3, 4-3, 5-1, 5-3.

, In order to allow the above-mentioned total sum A _M-5 to proceed within the allowable current amount A ₀ , add the current consumption amount A _6-3 of the seventh-ranked component 6-3 to the total sum A _M-5 of the formula. .

A _M-5 + A _6-3 = A _M-6 …… Determines whether the sum A _M-6 of this formula is within the allowable current amount A ₀ , and the sum A _{M-6 of the} formula is the allowable current amount If it is within A ₀ , the first to seventh parts 2-3,3-3,4-3,5-1,5-3,6
-1,6-3 decides to use all, and when the sum A _M-6 of the formula exceeds the allowable current amount A ₀ , the first to sixth parts 2-3,
Decide to use only 3-3, 4-3, 5-1, 5-3, 6-1.

In step 112, equal seat processing is performed. For example, from the calculation in step 111, the heating carpet 5-
In the case where the heating carpet 5-3 on the right side of the rear seat is not selected even though 1 is selected and the occupant is seated on both the driver's seat and the right rear seat, Only the occupant in the driver's seat can get the feeling of heating by the heating carpet 5-1 and it becomes unfair.

Therefore, if only one of the same parts corresponding to each seat is selected in step 111 by the seat equalization process and the occupant is seated on both seats, Both the same parts corresponding to the battery
The time is divided so as to be within the permissible current amount A _{0 of} 11, and the power is alternately turned on / off so that each occupant can evenly get a feeling of heating.

In step 113, the control device 10 controls each of the cooling and heating devices 1 corresponding to the components 1 to 9 selected in the processing of steps 101 to 112.
A current (electric power) is supplied from the battery 11 to 9 to 9 to selectively operate the cooling and heating devices 1 to 9 in the seated portion of the occupant.

Second Embodiment (See FIGS. 5 and 6 and Table 1) In this second embodiment, the use priority order of each of the components 1 to 12 is 12
In addition, the heating / cooling degree 13 of each component 1 to 9 is set in advance by being stored in the memory of the microcomputer constituting the control device 10 as a system base, and is set by turning on the main switch 16. Priority
12 and heating / cooling degree 13, temperature sensors 17 ₁ , 17 _2-1 , ...
Detected temperature T ₁ , T for each cooling and heating equipment 1-9 detected at 17 _n
2-1, ......, T _n becomes the temperature information, the seat switch 18 _1, 18 _2, 1
Each of the heating and cooling systems to be used is controlled by a program preset as a system base other than the microcomputer's above, which takes into account information such as the occupant's seating position information that detects where the occupant is seated in 8 ₃ and 18 _4. A combination is calculated in which the sum A _{M of the} power consumption of the devices 1 to 9 is the closest value within the allowable power amount of the vehicle-mounted power source 11, and based on the calculation result, the cooling and heating devices 1 to 9 are selectively mounted on the vehicle-mounted power source. It is characterized in that it is operated with 11 electric power.

Specifically, the use priority order 12 is the same as that in Table 1 shown in the first embodiment.

The heating / cooling degree 13 of each of the components 1 to 9 is the step 208 in FIG.
It is knowledge that defines the relationship between the set temperature and the current consumption as shown in.

The operation of the second embodiment will be described based on the flowchart of FIG.

Specifically, in step 201, the use priority 12 and the heating / cooling degree 13 (for example, three levels such as strong, medium, and weak are set in advance) are preset in the control device, and in step 204, the use priority is set. 12 and heating / cooling degree 13 are stored in the sub memory of the microcomputer, and in step 208, the temperature sensor 1
The current detection temperatures T ₁ , T ₂ , T _3, ... T _n of the components 1 to 9 detected by 7 ₁ , 17 ₂ , 17 ₃ ... 17 _n are read, and the detection temperatures T ₁ , T ₂ ,
T _2, T ₃ ...... T current consumption A ₁ of each part 1-9 from _n to become heated cooling degree on the basis of knowledge 13, A _2-1, ......, seek A _n, current consumption thus determined the amount a _1, a _2-1, ......, stores the a _n in the sub-memory of the microcomputer. On the other hand, steps 202, 203,
205,206,207,209,211,212,213 are steps 102, 103, 105, 106, 107, 109, 111, 112, 113 of FIG. 4 in the first embodiment.
Is the same as

Therefore, according to the second embodiment, the use priority order is determined on the basis of each of the parts 1 to 9. In other words, by the heating / cooling degree 13, the consumption current amount A ₁ , A _2-1 , obtained in step 208,
......, A _n , from the battery 11 in step 213
It is possible to improve the comfort of the occupant by supplying the cooling and heating devices 1 to 9 corresponding to 9 and finely driving and controlling the cooling and heating devices 1 to 9 within the allowable current amount A ₀ of the battery 11.

Third Embodiment (See FIG. 7 and Tables 2 and 3) In this third embodiment, as shown in Table 2 below, the use priority order 12A is set, and at least one of the cooling and heating devices 1 to 9 is used. In the above, the current consumption amount is multi-staged, for example, "state where the set temperature is on to a low set temperature; referred to as state 1" and "state where the set temperature is turned on to a high set temperature; referred to as state 2". It is characterized by switching to.

However, A _{2 (1)} > A _{2 (2)} , A _{3 (1)} = A _{3 (2)} , A _{4 (1)} <A _4(2), T _2(1)> T _{2 (2)} , _{T 3 (1)> T 3} (2), are assumed to _{T 4 (1)> T 4} (2). In addition, in the parts 2 to 4, for simplification of description, arithmetic numerals added below the hyphen are omitted.

The operation of the third embodiment will be described based on the flowchart of FIG.

Specifically, in step 301, the use priority order 12A is preset in the control device, and in step 308, the temperature sensors 17 ₁ , 17
_2-1 , 17 ₃ ...... 17 _n Current detected temperature of parts 1-9 detected by _n
T ₁ , T ₂ , T ₃ ... T _n are stored in the sub memory of the microcomputer as temperature information. On the other hand, steps 302, 303, 30
4,305,306,307,309,311,312,313 are steps 102,103,104,105,106,107,109,111,11 of FIG. 4 in the first embodiment.
Same as 2,113.

Therefore, according to the third embodiment, the consumption currents A ₁ , A
_{2 (1)} , ..., A _{n (j)} are used as a reference to determine the priority of use. That is, the detected temperature T _1, T ₂ ...... T consumed current amount A ₁ responding to _n, A _2, ......, A _n, for example detected in the component 2, as shown in Table 3 the temperature T ₂ is lower the set temperature T _{When the} temperature is between _{s2 (2)} and the high set temperature T _{s2 (1)} , the current consumption of the component 2 A ₂
Is A ₂ = A _{2 (1)} + A _{2 (2)} . The current consumption amounts A ₁ , A ₂ , ... A _n of the components 1 to 9 are supplied from the battery 11 to the cooling and heating devices 1 to 9 corresponding to the components 1 to 9 in step 213, and the cooling and heating devices 1 It is possible to more finely drive and control 9 to 9 within the allowable current amount A ₀ of the battery 11 to further improve the comfort of the occupant.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and although illustration is omitted, for example, the structure or control function shown in the following (a) to (d) may be added to further improve the comfort of the occupant. it can.

(A) As the cooling and heating device A, a device that only performs cooling operation,
Alternatively, the device is configured to perform both heating operation and cooling operation.

(B) The heat load state in the vehicle compartment is detected from the temperature difference between the room temperature and the set temperature, and the use priority order 12 is changed during the control accordingly.

(C) It is also possible to use an air conditioning device capable of analog control. That is, the cooling / heating equipment is selectively operated within the allowable current amount A ₀ while automatically correcting the use priority order 12 according to the temperature difference between the detected temperature of each cooling / heating equipment and the set temperature. This control becomes very complicated, so depending on the temperature difference, "good", "somewhat good", "somewhat bad",
A method is used in which a rough evaluation value for comfort such as "bad" is given, and the use priority 12 is corrected by this evaluation value. With this method, it is possible to obtain a sufficiently practical control law without presetting a very complicated use priority order 12.

(D) The satisfaction or dissatisfaction degree of the occupant is input to the preset use priority order 12, and the use priority order 12 is corrected according to the satisfaction / dissatisfaction degree. This is the so-called "learning control". By using this control, it is possible to make the control that sufficiently reflects the individual difference even if the temperature is perceived as being difficult to optimally control due to individual difference. Become. For example, if a hand switch is provided in the heating knee 3 and the heating knee 3 is turned off by the control device 10, if the passenger turns on the hand switch, the heating knee 3
Correct the set temperature of lower than before. As a result, it becomes possible to control the temperature according to the individual difference due to the frequency with which the heating lounger 3 is turned on.

EFFECTS OF THE INVENTION As described above, according to the present invention, it is possible to perform control so that the total sum of the power consumption amounts added from the use priority order becomes the value closest to the permissible power amount within the permissible power amount of the vehicle-mounted power source. , Even if the allowable power value of the on-vehicle power supply fluctuates due to the power operation of parts other than the heating and cooling equipment, within the range of the allowable power amount of the on-vehicle power supply at that time, a plurality of cooling and heating equipment are selectively and properly operated. Therefore, the cooling and heating capacities of a plurality of cooling and heating devices can be effectively utilized to the maximum extent, and the comfort of the occupant can be improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a first embodiment of the present invention, FIG. 2 is a side view showing an arrangement example of the cooling / heating equipment of the first embodiment, and FIG. 3 is a cooling / heating equipment of the first embodiment. FIG. 4 is a plan view showing an arrangement example, FIG. 4 is a flow chart of the first embodiment, FIG. 5 is a schematic configuration diagram showing a second embodiment of the present invention, and FIG.
FIG. 7 is a flowchart showing the third embodiment of the present invention. B ... Air-conditioning equipment, 10 ... Control device, 11 ... In-vehicle power supply, 12, 12A
… Priority of use, 13… Degree of heating / cooling.

Claims (3)

(57) [Claims] 1. In a cooling and heating apparatus for an automobile provided with a plurality of heating and cooling apparatuses for performing at least one of heating operation and cooling operation by electric power from an on-vehicle power supply, a priority of use of the cooling and heating apparatuses is preset and set. A combination is calculated in which the sum of the power consumptions added from the specified usage priority is the closest value to the permissible power within the permissible power of the on-vehicle power supply, and a plurality of cooling / heating equipments are selectively selected based on the calculation result. An air conditioner for a vehicle, which is provided with a control device for operating the vehicle. 2. The control device corrects a preset use priority by a heating / cooling degree that defines a relationship between a set temperature and a power consumption amount of the plurality of cooling / heating equipments, and uses the corrected use priority. The combination wherein the total of the added power consumption amounts is the closest value within the allowable power amount of the vehicle-mounted power source is calculated, and a plurality of cooling and heating devices are selectively operated based on the calculation result. The vehicle air conditioner according to item (1). 3. The control device corrects a preset use priority order in accordance with temperature information and occupant seating information of each heating / cooling device, and a total amount of power consumption added from the corrected use priority order is calculated. The vehicle according to claim (1), characterized in that a combination having the closest value within the permissible electric energy of the vehicle-mounted power supply is calculated, and a plurality of cooling and heating devices are selectively operated based on the calculation result. Air conditioning system.