WO2011083976A2

WO2011083976A2 - Automobile

Info

Publication number: WO2011083976A2
Application number: PCT/KR2011/000067
Authority: WO
Inventors: 하정주; 염승훈
Original assignee: (주)브이이엔에스
Priority date: 2010-01-08
Filing date: 2011-01-06
Publication date: 2011-07-14
Also published as: WO2011083976A3; KR20110081613A

Abstract

The automobile according to the present invention has the advantageous effects that coolant water circulating through a battery can be adequately cooled to a temperature appropriate for cooling the battery and the battery can be effectively cooled by means of heat exchange between the coolant water and a coolant circulating through an air conditioning device. Consequently, overheating of the battery can be prevented and the life of the battery can be extended.

Description

car

The present invention relates to an automobile, and more particularly, to an automobile capable of improving the cooling efficiency of a battery of an automobile by using an air conditioning system.

In general, automobiles are driven by generating power from an engine and transmitting them to wheels, and are vehicles for transporting passengers or cargo on the road. An automobile includes a body that largely forms an exterior and a chassis in which various devices are organically connected. The chassis includes the main engines such as power transmission, steering, suspension and braking, as well as the automobile engine that drives driving.

The engine is the driving force for running the automobile. Most automotive engines are four-stroke internal combustion engines. A four-stroke internal combustion engine is an internal combustion engine that finishes one cycle by four strokes of intake, compression, explosion, and exhaust, and is the most common example of a reciprocating engine. Internal combustion engines, which mainly use volatile fuels, compress the fuel in a well-mixed state to achieve complete combustion with oxygen in the air, and then directly obtain the kinetic energy by using the thermal energy generated by the combustion.

Internal combustion engines using these volatile fuels have caused environmental pollution and exhaustion of petroleum resources due to exhaust gas, and as an alternative, electric vehicles (EVs) powered by electricity have emerged. Electric vehicles are pollution-free cars with no emissions or noise. However, high production costs, low running speeds and short running distances have not been practical.

In recent years, high oil prices and tighter exhaust gas regulations have speeded up the development of electric vehicles, and the market is growing rapidly.

On the other hand, in the case of electric vehicles, when the heat generated from the battery can not be effectively discharged when driving, there is a problem that the durability is reduced.

An object of the present invention is to provide an automobile which can cool a battery more efficiently.

An automobile according to the present invention for solving the above problems is a battery used as an energy source; A battery cooler for cooling the battery; An air conditioner for air conditioning the vehicle compartment with a refrigerant; And a heat exchanger configured to heat-exchange the cooling water circulating the battery cooling device and the refrigerant circulating the air conditioner, thereby cooling the cooling water circulating the battery.

In addition, the vehicle according to another aspect of the present invention, the battery cooling device for cooling the battery by the cooling water; An air conditioner for air conditioning the vehicle compartment with a refrigerant; A heat exchanger disposed between the battery cooler and the air conditioner to exchange heat between the coolant circulating the battery and the refrigerant circulating the air conditioner; And an air conditioner controlling the cooling and cooling of the battery by controlling the cooling and heating of the vehicle compartment by operating the air conditioner and controlling the amount of refrigerant flowing into the heat exchanger according to the temperature of the battery.

The automobile according to the present invention, by heat-exchanging the coolant circulating the battery and the refrigerant circulating the air conditioner, it is possible to sufficiently cool the cooling water to a temperature suitable for cooling the battery, the cooling effect of the battery can be effectively made There is. Therefore, overheating of the battery can be prevented, thereby extending the life of the battery.

In addition, the vehicle according to the present invention includes an air conditioning control unit connected to the vehicle control unit and the battery control unit, which not only cools and cools the cabin but also appropriately adjusts the amount of refrigerant flowing into the heat exchanger according to the state of the battery to cool the battery. Can be controlled.

In addition, since the air conditioning control unit is provided separately from the switch of the air conditioning apparatus, the heat exchanger and the air conditioning control unit for cooling the battery when the heat load and the characteristic value of the air conditioning apparatus are input even if the air conditioning apparatus varies according to the vehicle type. There is an advantage that can be used in other vehicles.

In addition, since the valve is provided on the flow path through which the refrigerant of the air conditioner circulates, the refrigerant can be supplied to the heat exchanger only when the battery needs to be cooled, thereby ensuring both the cooling performance and the air conditioning performance of the battery. .

1 is a perspective view schematically showing a vehicle body of a vehicle according to an embodiment of the present invention.

2 is an exploded perspective view showing a part of a vehicle according to an embodiment of the present invention.

3 is a perspective view showing a battery cooling apparatus of a vehicle according to an embodiment of the present invention.

4 is a perspective view showing a battery module according to an embodiment of the present invention.

FIG. 5 is a view illustrating a battery cooling device and an air conditioner of a vehicle according to an embodiment of the present invention, and showing a refrigerant and a coolant flow.

FIG. 6 is a view illustrating a coolant and coolant flow in a case where the coolant is not bypassed in FIG. 5.

7 is a block diagram schematically illustrating a configuration of a control unit of a vehicle according to an embodiment of the present invention.

8 is a block diagram showing a battery cooling device and an air conditioner of a vehicle according to another embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view schematically showing a vehicle body of a vehicle according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a part of a vehicle according to an embodiment of the present invention.

Referring to FIG. 1, a vehicle body according to an embodiment of the present invention includes a front vehicle body 100 in which parts of a motor and a power transmission system are mounted, and a central vehicle body 200 in which a passenger can ride and sit, and a spare. It is configured to include a rear vehicle 300 that can store tires and other things.

The vehicle bodies 100 to 300 form a closed space to arrange various devices therein and accommodate occupants or cargo. It is also necessary to have a structure that can open and close a part to facilitate occupants, cargo access, and maintenance of various devices. It is also important to protect occupants, cargo, and various devices from rain, wind, and dust from the outside. In addition, the shape of the vehicle bodies 100 to 300 is the appearance of the vehicle as it is.

The front vehicle body 100 forms a well well and is provided with a motor and a transmission. The front vehicle body 100 is provided with a steering device 110 for adjusting the direction of rotation of the front wheel to change the direction of travel of the vehicle, and a front wheel suspension device 120 so that the vibration of the road surface does not directly contact the vehicle body.

The front vehicle body 100 needs to support the front wheels of the front wheel suspension device 120, including a heavy load such as a motor, a transmission, and various auxiliary devices. In the front wheel drive car, the front vehicle body 100 is also responsible for the driving force.

The front vehicle body 100 is broken when a dog is impacted due to an accident, so as to absorb the shock so that a strong force is not transmitted to the cabin. Each part of the front vehicle body 100 is fixed or welded to the front vehicle body with bolts or nuts, and is capable of separating only the outer plate parts such as the front fender and the hood.

The steering device 110 is a device for adjusting the direction of the rotation axis of the front wheel to drive the vehicle in the direction intended by the driver.

The front wheel suspension apparatus 120 supports the front wheels with respect to the vehicle body by appropriate rigidity in directions other than up and down, and supports the up and down directions by springs and damping mechanisms.

The center body 200 includes a front floor 210 forming a front bottom, a tunnel 230 provided in the front floor and a battery 500 mounted thereon, and being provided at both edges of the front floor to provide a lower side surface. The side seal panel 229 to form is included.

Since the central body 200 is mostly a vehicle, that is, a place where a passenger or the like boards, the interior space increases as much as possible.

The front floor 210 is a panel having a high strength and a large area as a floor in a vehicle compartment. Side seal panels 229 serving as bases of the pillars are connected to the left and right of the front floor 210 from front to back. The tunnel 230 is provided in the center of the front floor 210.

The tunnel 230 is formed to be led upward so that the battery 500 is mounted. Both sides of the tunnel 230 are coupled to the front floor 210. The tunnel 230 and the front floor 210 is preferably coupled by welding.

Battery carriers 410 supporting the battery 500 are coupled to both side edges of the tunnel 230. The battery carrier 410 is coupled to the tunnel 230 with a bolt or nut.

The side seal panel 229 has a rectangular cross-sectional structure, and may be coupled to a front pillar (not shown), a center pillar (not shown), or a rear wheel house (not shown). The side seal panel 229 is coupled to both edges of the front floor 210.

The rear vehicle 300 includes a rear floor 310 forming a rear bottom. The rear vehicle 300 is provided with a rear wheel suspension 330 to prevent the vibration of the road surface directly touching the vehicle body.

The rear vehicle 300 needs to support the rear wheel of the rear wheel suspension 330. In addition, the rear vehicle 300 is responsible for the driving force in the rear wheel drive vehicle.

The rear wheel suspension 330 supports the rear wheel with respect to the vehicle body by appropriate rigidity in directions other than up and down, and supports the up and down direction by a spring and a damping mechanism.

The battery 500 supplies a current. The battery 500 is formed in a T-shape, and is preferably mounted on the tunnel 230 of the central vehicle body 200 and the rear floor 310 of the rear vehicle body 300.

The battery 500 is composed of a set of a plurality of battery modules 400. The battery module 400 will be described later with reference to FIG. 4.

The battery carrier 410 supports the battery 500. The battery carrier 600 is preferably coupled to the central vehicle body 200 and the rear vehicle body 300 by bolts or nuts.

3 is a perspective view showing a battery cooling apparatus of a vehicle according to an embodiment of the present invention. 4 is a perspective view showing a battery module according to an embodiment of the present invention. FIG. 5 is a view illustrating a battery cooling device and an air conditioner of a vehicle according to an embodiment of the present invention, and showing a refrigerant and a coolant flow. FIG. 6 is a view illustrating a coolant and coolant flow in a case where the coolant is not bypassed in FIG. 5.

5 and 6, a vehicle according to the present invention, a battery cooling device for cooling the battery 500 by the coolant, and an air conditioner (HVAC system, Heating Ventilation Air) for air conditioning the vehicle compartment with a refrigerant -Conditiong system), and a heat exchanger 600 for heat-exchanging the coolant circulating the battery cooler and the refrigerant circulating the air conditioner.

Referring to FIG. 3, the battery 500 includes a plurality of battery modules 400 provided inside the battery case 501, and the battery module 400 includes a cartridge 440 forming an appearance thereof. A plurality of cell modules 410 stacked on the cartridge 440 and generating a current; and a plurality of cell modules 410 provided on the cartridge 440 and provided on side surfaces of the plurality of cell modules 410. And a battery cooling plate 420 that absorbs heat of 410. The battery cooling plate 420 will be described in more detail in the battery cooling apparatus described below.

The cartridge 440 includes a cell module case 441 in which the cell module 410 is accommodated, and a cartridge panel 443 supporting the cell module case 441. The cell module case 441 may be stacked in a vertical direction.

Not limited to this embodiment, an additional cartridge panel 443 may be further provided on the stacked cell module case 441.

The cell module 410 generates a current. The current generated by the cell module 410 operates as a current for driving the vehicle. As the current is generated in the cell module 410, heat may be generated. The cell module 410 is formed by stacking a plurality of cells and is accommodated in each cell module case 441, and is stacked in the cartridge panel 443 together with the cell module case 441.

The plurality of cell module cases 441 and the cartridge panel 443 are coupled to each other through a fastening member such as a bolt 450.

3 to 6, the battery cooling apparatus includes a battery cooling plate 420 mounted on the battery 500, and a cooling water hose 511 for circulating the cooling water entering and exiting the battery cooling plate 420. 512 and the

coolant hoses

511 and 512 may include a battery radiator for radiating heat of the coolant to external air.

The battery radiator may include a battery radiator 510 that radiates heat of the cooling water through heat exchange with external air.

Cooling water flows inside the battery cooling plate 420 to absorb heat generated from the plurality of stacked cell modules 410. Thus, the cell module 410 may be cooled.

The battery cooling plate 420 may be disposed on at least one side of upper, lower, left, and right sides of the stacked cell modules 410.

The battery cooling plate 420 may be formed in a plate shape, and may be formed in an empty space to allow the cooling water to pass therethrough, and of course, a passage through which the cooling water passes may be formed.

One side of the battery cooling plate 420 may be provided with an inlet and an outlet connected to the cooling

water hoses

511 and 512.

The

coolant hoses

511 and 512 connect the first coolant hose 511 to connect the battery 500 and the battery radiator 510, and connect the battery radiator 510 and the heat exchanger 600. And a second coolant hose 512.

The first coolant hose 511 may be provided with a check valve 513 to prevent the high temperature coolant flowing from the battery 500 side back to the battery 500 side.

5 and 6, the air conditioner is a device for cooling or heating the vehicle compartment, a compressor (10) for compressing the refrigerant, a condenser (12) for condensing the refrigerant from the compressor (10), First expansion valve 14 for expanding the refrigerant from the condenser, the evaporator 16 for evaporating the refrigerant from the first expansion valve 14, the compressor 10, the condenser 12, the first The expansion valve 14 and the evaporator 16 includes a refrigerant circulation hose (20, 21, 22) for circulating the refrigerant.

The

refrigerant circulation hoses

20, 21, and 22 may include a first refrigerant circulation hose 20 connecting the compressor 10 and the condenser 12, the condenser 12, and the evaporator 16. A second refrigerant circulation hose 21 to be connected and a refrigerant bypass hose 22 branched from the second refrigerant circulation hose 21 to guide the refrigerant to the heat exchanger 600 are included.

A side surface of the condenser 12 is disposed with a cooling fan 40 for blowing outside air and a radiator 13 for radiating heat of the condenser 12 by the outside air blown by the cooling fan 40. Can be.

The battery radiator 510 may be disposed in parallel with the condenser 12 and the radiator 13.

In addition, the vehicle according to the embodiment of the present invention further includes an auxiliary heater (PTC Heater, Possitive temperature coefficient Heater) (18) for heating the vehicle by receiving power from the battery 500.

The auxiliary heater 18 is an electric heating heater that generates heat by electric power. The auxiliary heater 18 is a heater for assisting heating performance.

5 and 6, the heat exchanger 600 is arranged to exchange heat between the refrigerant from the condenser 12 and the cooling water from the battery radiator 510. The heat exchanger 600 may be formed to pass through the second coolant hose 512 and the refrigerant bypass hose 22.

The refrigerant bypass hose 22 is branched from the second refrigerant circulation hose 21 so as to bypass at least a portion of the refrigerant from the condenser 12 toward the heat exchanger 600.

First and second

refrigerant valves

30 and 32 may be installed in the second refrigerant circulation hose 21 and the refrigerant bypass hose 22 to control the flow of the refrigerant, respectively.

The second refrigerant circulation hose 21 is provided with a first refrigerant valve 30 to control the flow of the refrigerant flowing into the evaporator 16 side or to adjust the flow rate of the refrigerant. The refrigerant bypass hose 22 is provided with a second refrigerant valve 32 for controlling the flow of the refrigerant flowing into the heat exchanger 600 or for controlling the flow rate of the refrigerant.

A second expansion valve 15 may be disposed in the refrigerant bypass hose 22 to expand the refrigerant before being bypassed by the second refrigerant circulation hose 21 and introduced into the heat exchanger 600.

Referring to FIG. 7, a vehicle according to an embodiment of the present invention may include a vehicle control module (VCM) 70 controlling a driving state of the vehicle, and a battery controller controlling the battery 500. A battery control module (BCM) 60 and an air conditioning control unit (HVAC controller, Heating Ventilation Air-Conditiong Controller) 50 for controlling the air conditioner.

The vehicle controller 70 controls the operation of the overall vehicle, for example, may control the operation of the brake, suspension or cooling fan 40.

In addition, the vehicle controller 70 may receive a signal for the pressure of the refrigerant sensed by the refrigerant pressure sensor 55 and control the rotation speed of the cooling fan 40 according to the detected pressure of the refrigerant. .

The battery controller 60 may control the state of charge of the battery 500. For example, the charging state of the battery 500 may be determined and the charging time may be controlled.

In addition, the battery controller 60 may determine the temperature of the battery 550. The battery controller 60 senses the temperature of the coolant for cooling the battery 55 to determine the temperature of the battery 550. The sensed temperature of the coolant may be transmitted to the air conditioning controller 50. According to the sensed temperature of the cooling water, the air conditioning controller 50 may control the flow rate of the refrigerant to be bypassed toward the heat exchanger 600.

The air conditioning control unit 50 is installed separately from the air conditioning apparatus. That is, the air conditioner control unit according to the present invention is conventionally disposed separately from the air conditioner unlike the control unit mounted inside the switch of the air conditioner.

Even if the air conditioner is changed according to the vehicle type, if the heat load and the characteristic value of the air conditioner are input, the heat exchanger 600 and the air conditioner 50 for cooling the battery may be used for other vehicle types. That is, the heat exchanger 600 and the air conditioner 50 may be shared.

In addition, the air conditioning control unit 50 is configured to transmit and receive information with the vehicle control unit 70 and the battery control unit 60, it can be controlled according to the state of the vehicle and the surrounding environment.

The air conditioning control unit 50 controls the first and second

refrigerant valves

30 and 32 according to the signal transmitted from the battery control unit 60 to flow the refrigerant to be bypassed toward the heat exchanger 600. Can be controlled.

At this time, the battery control unit 60 transmits a signal for the temperature of the coolant entering and exiting the battery 550 to the air conditioner control unit 50. When it is determined that the temperature of the cooling water is excessively high, the air conditioning control unit 50 may increase the amount of opening of the second refrigerant valve 32 to increase the refrigerant flow rate bypassed to the heat exchanger 600. . On the other hand, if it is determined that the temperature of the cooling water is enough to cool the battery 550, the opening amount of the second refrigerant valve 32 is reduced or the second refrigerant valve 32 is closed. The refrigerant flow rate bypassed to the heat exchanger 600 may be reduced.

In addition, the air conditioning control unit 50 calculates power required for air conditioning in consideration of environmental conditions and user requirements. Then, appropriate power is distributed to the compressor 10 and the auxiliary heater 18 according to the calculated power.

The vehicle includes an outdoor air temperature sensor 52 for sensing a temperature of the outside air, an input unit 51 for inputting a desired operation by the user, an evaporator temperature sensor 54 for measuring the temperature of the evaporator 16, and the air. It may further include a refrigerant temperature sensor 53 for measuring the temperature of the refrigerant circulating the conditioner.

The air conditioning control unit 50 may determine the outdoor temperature condition from the signal transmitted from the outside air temperature sensor 52, and may determine the user's requirements from the signal input from the input unit 51.

When the outside air temperature is high, the heat exchange performance of the battery radiator 510 for exchanging the outside air and the cooling water may be deteriorated. Therefore, the air conditioning control unit 50 controls the opening amount of the second refrigerant valve 32 according to the ambient temperature value transmitted from the outside air temperature sensor 52, and the amount of refrigerant flowing into the heat exchanger 600. Can be controlled.

In addition, the air conditioning control unit 50 may determine the state of the vehicle from the signal transmitted from the vehicle control unit 70. At this time, the vehicle controller 70 may transmit a permission signal for the use of the compressor 10 and the auxiliary heater 18 to the air conditioner controller 50.

Accordingly, the air conditioner control unit 50 calculates the required power in consideration of both the state of the vehicle, the surrounding environment, and the user's request situation, and appropriately distributes the power to the compressor 10 and the auxiliary heater 18. have.

Referring to Figures 5 and 6, the operation according to an embodiment of the present invention configured as described above is as follows.

First, referring to FIG. 5, the high temperature and high pressure refrigerant compressed by the compressor 10 is introduced into the condenser 12 through the first refrigerant circulation hose 20.

The refrigerant introduced into the condenser 12 is condensed through heat exchange with external air in the condenser 12, and then flows through the second refrigerant circulation hose 21, and at least a part of the refrigerant flows into the heat exchanger 600. Inflow and the remainder in the evaporator 16.

At this time, the air conditioning control unit 50 controls the opening degree of the first and second refrigerant valves 31 and 32, so that the refrigerant from the condenser 12 is transferred to the heat exchanger 600 and the evaporator ( 16) to the side.

That is, the air conditioning control unit 50 controls the first and second

refrigerant valves

30 and 32 according to the signal transmitted from the battery control unit 60, and the refrigerant to be bypassed toward the heat exchanger 600. The flow rate of can be controlled.

The battery control unit 60 transmits a signal according to the temperature of the coolant cooling the battery 500 to the air conditioning control unit 50.

When the temperature of the coolant that cools the battery 500 is excessively high, since only the battery radiator 510 has a limitation in lowering the temperature of the coolant, the second refrigerant valve 32 is opened to open the heat exchanger. Heat exchange between the refrigerant and the cooling water is performed inside the 600.

The refrigerant bypassed toward the heat exchanger 600 exchanges heat with the cooling water flowing through the heat exchanger 600. Since the temperature of the refrigerant introduced into the heat exchanger 600 is relatively lower than the temperature of the cooling water, the cooling water may be sufficiently cooled by the refrigerant.

The refrigerant introduced into the evaporator 16 is circulated back to the compressor 10 after being evaporated inside the evaporator 16.

Meanwhile, the coolant cooled by the refrigerant in the heat exchanger 600 flows into the cooling plate 420 of the battery 500 and absorbs heat in the battery module 400 to allow the battery module 400 to flow. Can be cooled.

The high temperature coolant that cools the battery 500 and passes through the battery radiator 510 may be radiated by outside air.

The coolant passing through the battery radiator 510 may be circulated to the heat exchanger 600 through the second coolant hose 512.

As described above, since the coolant may be cooled to a temperature sufficient for cooling in the heat exchanger 600, the battery 500 may be effectively cooled. Therefore, the life of the battery 500 can be extended.

In addition, the present embodiment includes an air conditioning control unit 50 connected to the vehicle control unit 70 and the battery control unit 60, and according to the state of the vehicle, the surrounding environment, and the cooling state of the battery 500. And the flow of the refrigerant can be controlled appropriately.

Meanwhile, referring to FIG. 6, when the temperature of the coolant that cools the battery 500 is within a preset temperature range, and the temperature is low enough, only the battery radiator 510 may determine that heat of the coolant is sufficiently radiated. have.

Therefore, the second refrigerant valve 32 may be closed to prevent the refrigerant from flowing into the heat exchanger 600. The refrigerant is not bypassed to the heat exchanger 600, but all flows into the evaporator 16 to circulate.

Referring to FIG. 8, in an automobile according to another embodiment of the present invention, a flow path switching valve 33 for changing a flow path of a refrigerant where a branch of the refrigerant bypass hose 22 is branched from a second refrigerant circulation hose 21 is provided. The configuration and operation other than those provided with the above may be implemented in the same manner as in the above-described embodiment of the present invention, and thus descriptions of the overlapping with the above-described embodiment of the present invention may be omitted.

The flow path switching valve 33 may be a three-way valve, the air conditioning control unit 50 may control the opening degree of the flow path switching valve 33 in consideration of the temperature of the cooling water.

Those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is shown by the claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention. Should be interpreted.

Claims

A battery used as an energy source;

A battery cooler for cooling the battery;

An air conditioner for air conditioning the vehicle compartment with a refrigerant;

And a heat exchanger configured to heat-exchange the coolant circulating the battery cooler and the refrigerant circulating the air conditioner, thereby cooling the coolant circulating the battery.
The method according to claim 1,

The battery cooling device,

A battery cooling plate disposed in the battery and passing through the cooling water;

And a battery coolant hose for guiding entry and exit of coolant to the battery cooling plate.
The method according to claim 2,

The battery cooling device,

And a battery radiator connected to the battery coolant hose and configured to discharge heat of the coolant to the outside.
The method according to claim 3,

The battery radiator includes a radiator for heat exchange between the outside air and the coolant.
The method according to claim 3,

And a check valve disposed in a flow path between the battery and the battery radiator to prevent the high temperature coolant from the battery from flowing back to the battery side.
The method according to claim 3,

The battery coolant hose,

A vehicle configured to guide the coolant from the battery radiator to the heat exchanger.
The method according to claim 1,

The air conditioner,

With compressor,

A condenser for condensing the refrigerant from the compressor,

An evaporator for evaporating the refrigerant from the expansion valve,

And a refrigerant circulation hose configured to connect the compressor, the condenser, the expansion valve, and the evaporator to circulate the refrigerant.
The method according to claim 7,

The heat exchanger,

A vehicle disposed between the condenser and the battery to heat-exchange the low temperature refrigerant from the condenser and the refrigerant before entering the battery.
The method according to claim 7,

And a refrigerant bypass hose for bypassing at least a portion of the refrigerant from the condenser to the heat exchanger side.
The method according to claim 9,

And a refrigerant valve disposed at the refrigerant bypass hose to control the introduction of refrigerant into the heat exchanger.
The method according to claim 9,

And a flow path switching valve disposed at a point at which the refrigerant bypass hose branches from the refrigerant circulation hose to change the flow path of the refrigerant.
The method according to claim 1,

And an auxiliary heater receiving electric power from the battery and generating heat by the electric power to heat the vehicle compartment.
The method according to claim 1,

A vehicle controller which controls driving of the vehicle;

A battery controller for controlling the battery;

And an air conditioning control unit configured to transmit and receive information in association with the vehicle control unit and the battery control unit and to control the air conditioner.
The method according to claim 13,

The air conditioning control unit,

A vehicle disposed separately from the air conditioner.
The method according to claim 13,

And an auxiliary heater receiving electric power from the battery and generating heat by the electric power to heat the vehicle compartment.
The method according to claim 15,

The air conditioning control unit,

And distribute electric power from the battery to the compressor and the auxiliary heater of the air conditioner.
The method according to claim 13,

The battery control unit transmits the temperature value of the coolant circulating the battery to the air conditioning control unit,

The air conditioning control unit controls the amount of refrigerant flowing into the heat exchanger accordingly.
The method according to claim 13,

Refrigerant bypass hose for bypassing a portion of the refrigerant circulating the air conditioner to the heat exchanger, and a refrigerant valve for controlling the amount of refrigerant flowing into the heat exchanger,

The air conditioning control unit controls the refrigerant valve in accordance with a signal input from the battery control unit.
The method according to claim 13,

A sensor to sense the temperature of the outside air,

Further comprising an input unit for the user to request the operation,

The air conditioner control unit controls the air conditioner according to the signal received from the sensor and the input unit.
A battery cooler for cooling the battery with coolant;

An air conditioner for air conditioning the vehicle compartment with a refrigerant;

A heat exchanger disposed between the battery cooler and the air conditioner to exchange heat between the coolant circulating the battery and the refrigerant circulating the air conditioner;

And an air conditioner controlling the cooling and cooling of the battery by controlling the cooling and heating of the vehicle compartment by operating the air conditioner and controlling the amount of refrigerant flowing into the heat exchanger according to the temperature of the battery.