KR20140147365A - Integrated heat Management system in Vehicle - Google Patents

Abstract

The present invention provides an integrated thermal management system for a vehicle, comprising: a first heat exchanger to carry out heat exchange between a first cooling water and the outside air using the first cooling water as a thermal medium; a second heat exchanger to carry out heat exchange between a second cooling water and the outside air using the second cooling water as a thermal medium; a first cooling water line on which the first heat exchanger and the engine part of a vehicle are arranged through which the first cooling water circulates; a second cooling water line on which the second heat exchanger and the electronic and heating parts of the vehicle are arranged through which the second cooling water circulates; a connection line to connect the first cooling water line and the second cooling water line; a conversion valve provided to a point on which the first cooling water line and the second cooling water line respectively meets the connection line, and converts the flows of the first cooling water and the second cooling water; and a control unit to control the conversion valve in accordance to a summer cooling mode and a winter heat-up mode to separate or integrate the first cooling water line and the second cooling water line with respect to each other, thereby managing the heat of the engine part, the electronic parts, and the heating parts. Therefore, the number of heat exchangers can be minimized by integrating each one of the individual systems which have previously been individually cooled into a single system, provide an advantage for the structural design to efficiently exhibit the vehicle package configuration, and efficiently find a maximum performance of the vehicle. In addition, the cooling of the vehicle as well as the efficient thermal management during wintertime can be performed.

Description

[0001] The present invention relates to an integrated heat management system for a vehicle,

The present invention relates to an integrated thermal management system for a vehicle, and more particularly, to an integrated thermal management system for a vehicle that integrates a cooling system of a vehicle and performs integrated thermal management to improve overall efficiency of the vehicle.

In general, interest in hybrid vehicles and fuel cell vehicles is increasing as a means of achieving fuel economy of automobiles and decreasing the use rate of engines, and development thereof has been actively promoted.

On the other hand, unlike an engine vehicle, such a hybrid vehicle or a fuel cell vehicle has an increased number of components to be cooled, such as a fuel cell or an engine cooling section, a PE component cooling section, a cooling section for A / C air conditioning, Accordingly, the cooling loop configuration is also complicated and correspondingly increased.

Unlike engine vehicles, which are mainly developed for cooling in the summer and for heating by direct heating using waste heat in the winter, the hybrid vehicle or the fuel cell vehicle are not only capable of cooling in summer, In order to improve the efficiency of the parts, the proper temperature of the cooling water should be maintained.

Therefore, in the hybrid vehicle or the fuel cell vehicle, it is difficult to perform initial warm-up in the existing cooling system. Therefore, it is necessary to configure the individual cooling loop to perform the heat management. In this case, Each of the loops must be arranged on the front of the vehicle after arranging a radiator or condenser.

However, in the conventional heat management system of the vehicle constituting the individual cooling and air conditioning system, since a large number of heat exchangers are required in the FEM (front end module) portion of the vehicle, the vehicle package configuration is restricted, There is a problem in that the configuration for outputting the data becomes difficult.

In addition, in the conventional heat management system of a vehicle, each heat exchanger influences the cooling of each other, resulting in deterioration of efficiency. In addition, the number of parts requiring heat management is increased as well as cooling. .

In addition, in the conventional heat management system, it is necessary to minimize the power consumption for heating the winter by utilizing the waste heat of the cooling water of the engine or the fuel cell as much as possible, but the waste heat is difficult to use due to the system structure.

The present invention minimizes the number of necessary heat exchangers by integrating each of the existing individual cooling systems into one system, thereby making it possible to advantageously provide a configuration for efficiently providing the vehicle package configuration and the maximum performance of the vehicle The present invention provides an integrated thermal management system for a vehicle.

It is also an object of the present invention to provide an integrated thermal management system for a vehicle capable of performing efficient thermal management of parts as well as cooling of the vehicle.

It is another object of the present invention to provide an integrated heat management system for a vehicle that can minimize power consumption for winter heating by using waste heat of an engine or fuel cell cooling water.

The present invention provides a heat exchanger comprising: a first heat exchanger which uses a first cooling water as a heating medium and exchanges heat with the first cooling water; A second heat exchanger for exchanging the second cooling water with the outside air by using the second cooling water as a heating medium; A first cooling water line in which the first heat exchanger and the engine section of the vehicle are arranged and in which the first cooling water circulates; A second cooling water line in which the second heat exchanger, the electric component and the heat generating component of the vehicle are arranged, and the second cooling water circulates; A connection line connecting the first cooling water line and the second cooling water line; A switching valve provided at a position where each of the first cooling water line and the second cooling water line meets the connection line and switches the flow of the first cooling water and the second cooling water; And controlling the switching valve in accordance with the summer cooling mode and the winter heat-up mode to separate or integrate the first cooling water line and the second cooling water line to manage the engine part and the heat- An integrated thermal management system for a vehicle including a control unit is provided.

Here, the first cooling water line may include a second bypass line for bypassing the first heat exchanger, and a second cooling line provided at a portion where the first cooling water line and the second bypass line meet, And a second bypass valve for selectively switching to the first cooling water line or the second bypass line.

On the other hand, the electric component and the heat generating component of the vehicle are arranged in series on the second cooling water line, the second cooling water line includes a first bypass line for bypassing the heat generating component, And a first bypass valve provided at a portion where the first bypass line meets the first bypass line and selectively switching the flow of the second cooling water to the second cooling water line or the second bypass line.

In addition, the electric component and the heat generating component of the vehicle may be arranged in parallel on the second cooling water line.

Furthermore, the vehicle includes a heat pump system having a water-cooling heat exchanger for performing cooling and heating of the vehicle using an air conditioning system, and for exchanging heat between the refrigerant and the cooling water, wherein the water-cooling heat exchanger is connected to the second cooling water line And the second cooling water and the refrigerant circulating through the heat pump system are exchanged with each other.

The switching valve may include a first valve provided at a portion where the first cooling water line and the connection line meet and switching the flow of the first cooling water to the first cooling water line or the connection line, And a second valve provided at a portion where the cooling water line and the connection line meet to switch the flow of the second cooling water to the second cooling water line or the connection line, wherein the first valve and the second valve , And a 3-way valve.

Further, the engine unit may be operated by using any one selected from a fuel cell, a motor, gasoline, and diesel as an energy source.

Meanwhile, in the cooling mode, the control unit may control the switching valve such that the connection line is closed so that the first cooling line and the second cooling line are separated from each other.

The control unit may control the switching valve to open the connection line in the heat-up mode so that the first cooling line and the second cooling line are integrally connected to each other, And can be supplied to the second cooling water line.

The integrated thermal management system for a vehicle according to the present invention provides the following effects.

First, by integrating each individual cooling system that is individually cooled, the number of heat exchangers required can be minimized, thereby making it possible to advantageously structure the vehicle package and structure design to efficiently achieve the maximum performance of the vehicle.

Second, effective thermal management can be performed for parts that require winter heat management as well as vehicle cooling.

Third, since the engine or the waste heat of the fuel cell cooling water is used, the power consumption for heating in winter can be minimized and the overall efficiency of the vehicle can be improved.

1 is a block diagram schematically showing a configuration of an integrated thermal management system for a vehicle according to an embodiment of the present invention.
2 is a block diagram showing a control flow of the control unit in the integrated thermal management system for the vehicle of FIG.
3 is a diagram illustrating cooling water flow in the summer cooling mode of the integrated thermal management system of FIG.
FIG. 4 is a view showing cooling water flow in the winter heat-up mode of the integrated heat-control system of FIG.
5 is a view showing cooling water flow in the winter cooling mode of the integrated heat management system of FIG.
6 is a diagram illustrating another embodiment of the integrated thermal management system of FIG.
FIG. 7 is a view showing another embodiment in which electric parts and heat generating parts of a vehicle are arranged in parallel in the integrated heat management system of FIG. 1. FIG.
Fig. 8 is a view showing a case where an auxiliary heater is added to the air conditioning system of the vehicle of Fig. 1. Fig.

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

1, a vehicle thermal management integrated system 510 according to a preferred embodiment of the present invention includes a first heat exchanger 110, a second heat exchanger 120, And includes a first cooling water line 210, a second cooling water line 220, a connection line 230, a switching valve 300, and a control unit 400.

The first heat exchanger 110 is disposed on the first cooling water line 210 and performs heat exchange between the first cooling water flowing along the first cooling water line 210 and the outside air.

The second heat exchanger 120 is disposed on the second cooling water line 220 and performs heat exchange between the second cooling water flowing along the second cooling water line 220 and the outside air.

Here, it is preferable that the first heat exchanger 110 and the second heat exchanger 120 are located in the FEM portion of the vehicle to facilitate heat exchange with the outside air. Although the first heat exchanger 110 and the second heat exchanger 120 are positioned adjacent to each other in the drawing, it is a preferred embodiment in consideration of the layout design of the vehicle engine room and the like. Of course it is.

The first cooling water line 210 has a closed loop structure in which the first cooling water circulates and the first heat exchanger 110 and the engine part 100 of the vehicle are arranged and the first cooling water circulates The first water pump 211 is provided.

Here, it is preferable that the engine unit 100 be an engine unit that is applied to a fuel cell vehicle or a hybrid vehicle, which is operated as an energy source to further heat-control the fuel cell or the motor. However, the gasoline or diesel may be used as an energy source An engine part adapted to a gasoline vehicle or a diesel vehicle or a biodiesel vehicle may be applied.

The second cooling water line 220 includes a second water pump 221 for circulating the second cooling water through the second heat exchanger 120, an electrical component 141 and a heat generating component 142 of the vehicle, Respectively.

Here, the electric component 141 and the heat generating component 142 of the vehicle are a known electric component including a battery of an electric vehicle that requires heat management, and a heat generating component including a PE component, and a detailed description thereof will be omitted .

Further, the vehicle may employ a heat pump system 140 that performs cooling and heating of the vehicle using an air conditioning system. The heat pump system 140 may include a heat and cold heat exchanger 130 for exchanging heat between the refrigerant and the cooling water ).

Here, the heat pump system 140 and the water-refrigerant heat exchanger 130 are substantially similar to the well-known heat pump system and the cooling water refrigerant heat exchanger provided in the heat pump system, As an example of the technique of the heat pump system 140, a heat pump type air conditioner for a car is disclosed in Korean Registered Utility Model No. 20-0263212.

When the heat pump system 140 is introduced, the heat management integration system 510 may include a water-cooling heat exchanger 130 disposed on the second cooling water line 220, The second cooling water and the refrigerant circulating through the heat pump system 140 can be exchanged with each other.

The second cooling water line 220 includes a first bypass line 241 and a first bypass valve 341. The first bypass line 241 is connected to the second cooling water line 220 at the inlet and outlet sides of the heat generating component 142 so that the second cooling water bypasses the heat generating component 142 do.

The first bypass valve 341 is provided at a portion where the second cooling water line 220 and the first bypass line 241 meet, Flows to the second cooling water line (220) or the first bypass line (241).

The connection line 230 connects the first cooling water line 210 and the second cooling water line 220 so that the waste heat of the engine 100 flows into the second cooling water line 220 . In the drawing, the connection lines 230 are formed as a pair, one end of each of which is connected to the inlet and the outlet of the first heat exchanger 110 of the first cooling water line 210, The cooling water line 220 is connected to the inlet and the outlet of the second heat exchanger 120 so that the cooling water bypasses the first heat exchanger 110 and the second heat exchanger 120 . However, this is a preferred embodiment, and the connection line 230 may be connected at various locations if the first and second cooling water lines 210 and 220 are combined to achieve the above- It goes without saying that the number may be variously applied.

The switching valve 300 is disposed at a position where the first cooling water line 210 and the second cooling water line 220 meet the connection line 230 and is connected to the connection line 230. In response to the signal from the controller 400, And serves to switch the flow of the first cooling water and the second cooling water.

In detail, the switching valve 300 includes a first valve 310 and a second valve 320. The first valve 310 may be provided at a portion where the first cooling water line 210 and the connection line 230 meet to allow the flow of the first cooling water to flow through the first cooling water line 210 or the connection line 230. [ (230).

The second valve 320 may be provided at a portion where the second cooling water line 220 and the connection line 230 meet to allow the flow of the second cooling water to flow through the second cooling water line 220 or the connection line 230. [ (230).

It is preferable that the first valve 310 and the second valve 320 are three-way valves. However, various configurations are applicable as long as the above objects can be achieved, A valve capable of controlling the flow rate can also be applied.

Reference numeral 1 denotes a vehicle air conditioner. Reference numeral 10 denotes an air conditioner case, and reference numerals 20 and 30 denote an evaporator and a heater provided in the air conditioner case 10, respectively.

2, the controller 400 may control the first valve 310 and the second valve 320 to control the first cooling water line 210 and the second cooling water line 210 according to a summer cooling mode and a winter heat- The first bypass valve 341 and the second bypass valve 342 are controlled to separate the first cooling water line 220 and the second cooling water line 220 from each other, And the heat of the heat generating component 142. The control unit 400 also controls the heat pump system 140, the first water pump 211 and the second water pump 221 in an integrated manner so that efficient heat management of the vehicle is performed .

Hereinafter, the flow of the cooling water in the cooling mode and the heat-up mode, and the control flow of the controller 400 according to the flow will be described with reference to FIG. 3 to FIG. First, in the first cooling water line 210, the first cooling water having the relatively higher temperature than the second cooling water flows through the engine 100, and the electric component 141 and the heat-generating component The second cooling water line 220 in which the second cooling water line 142 is disposed flows relatively cooler than the first cooling water and the first cooling water has a higher heat source than the second cooling water .

Referring to FIG. 3, the controller 400 controls the first valve 310 and the second valve 320 so as to close the connection line 230 in a summer cooling mode requiring much cooling performance So that the first cooling water line 210 and the second cooling water line 220 are configured as separate cooling loops.

That is, when the controller 400 is in a cooling mode requiring cooling in the summer, the engine 100 performs cooling with the first heat exchanger 110, and the heat generating components 142 including the remaining PE components, The electric component 141 including the battery allows the second heat exchanger 120 to perform cooling.

Therefore, in the summer cooling mode, the heat management integration system 510 causes the low-temperature second cooling water to circulate between the heat generating component 141 of the vehicle, the electric component 142, and the water-cooling heat exchanger 130, The cooling water is circulated through the engine unit 100, and optimum heat management is performed so that cooling of each component is efficiently performed. The heat-generating component 141 of the vehicle and the condensing for A / C cooling are cooled by the second heat exchanger 120.

4, in a winter heat-up mode in which cooling is not required, the controller 400 controls the first valve 310 and the second valve 320 to open the connection line 230 So that the first cooling water line 210 and the second cooling water line 220 are integrated.

The heat management integration system 510 integrates the first cooling water line 210 and the second cooling water line 220 during the winter heat up mode so that the engine cooling water line 210 100 can be supplied to the second cooling water line 220 to improve the warming efficiency of the electric component 141 and the heat generating component 142 and to improve the heating performance COP of the interior of the vehicle. Can be supplied.

5 is a view showing the flow of cooling water during a winter cooling mode. Referring to FIG. 5, the thermal management integration system 510 includes the first valve 310 opened in both directions and the waste heat of the engine 100 Not only the cooling water is supplied to the second cooling water line 220 but also the heat is exchanged in the first heat exchanger 110 so that the temperature of the cooling water can be kept constant while heating and cooling are performed at the same time.

As described above, in the cooling mode, the thermal management integration system 510 separates the first cooling water line 210 and the second cooling water line 220 into separate cooling loops, The first cooling water line 210 and the second cooling water line 220 are integrated with each other so as to efficiently perform cooling of the electric component 141 and the heat generating component 142. In the heat- 100 can be supplied to the second cooling water line 220 to be used for heat-up of the heat-generating component 142 and the electric component 141 and as an indoor heating heat source, thereby improving the overall efficiency of the vehicle.

FIG. 6 is a diagram illustrating another embodiment of the thermal management integration system 520. Hereinafter, portions that are the same as those of the above-described configuration will be mainly described.

Referring to the drawings, the thermal management integration system 520 includes a second bypass line 242 formed in the first cooling water line 210, a second bypass valve 242 connected to the second bypass line 242, 342).

The first bypass line 242 is connected to the inlet and the outlet of the engine unit 100 at one end and the other end thereof and the first cooling water bypasses the first heat exchanger 110, So that the first cooling water is circulated only to the engine unit 100.

That is, the second bypass line 242 is used when it is necessary to heat up the engine 100 in the summer or winter or when it is necessary to raise the temperature to a predetermined temperature. 2 bypass valve 342 so as to perform heat exchange in the first heat exchanger 110.

The second bypass valve 342 may be provided at a portion where the first cooling water line 210 and the second bypass line 242 meet, To the first cooling water line (210) or the second bypass line (242).

The heat conduction integration system 520 may include the second bypass line 242 and the second bypass valve 342 so as to enable the initial engine part 100 to be heated up So that the efficiency can be improved and optimum heat management can be performed.

The heat management integration systems 510, 520 and 530 may vary the arrangement of the vehicle electrical components 141, the heat generating components 142, and the water-cooling heat exchanger 130 on the second cooling water line 220 .

As shown in FIG. 1, the thermal management integrated system 510 and 520 includes an electric component 141 and a heat generating component 142 disposed in series on the second cooling water line 220, The exchanger 130 may be arranged in parallel with the electric component 141 of the vehicle.

7, the thermal management integration system 530 may be configured such that the electric component 141 and the heat generating component 142 of the vehicle are arranged in parallel on the second cooling water line 220, The water heat exchanger 130 may be arranged in parallel with the vehicle electrical component 141 so that both the electrical component 141 and the heat generating component 142 of the vehicle and the hydrogen- have.

In this case, the thermal management integration system 530 can uniformly perform cooling of the electric component 141, the heat generating component 142, and the cold / hot heat exchanger 130, It is possible to more effectively cool the component 142 and control the flow rate of the first cooling water sent to the electric component 141, the heat generating component 142 and the water-cooling heat exchanger 130, It can be done efficiently.

Referring to FIG. 8, the thermal management integration system 540 further includes an auxiliary heater 32 disposed behind the heater in the air conditioning case 10 in the vehicle air conditioning system. The auxiliary heater 32 may be an electric heater or a PTC heater using a PTC device, but is not limited thereto.

As described above, the integrated heat management system for vehicles 510, 520, 530, 540 individually manages or integrally manages the first cooling water line 210 and the second cooling water line 220 corresponding to the cooling mode and the heat- Therefore, it is possible to minimize the number of heat exchangers required, thereby making it possible to advantageously provide a structure of a vehicle package and a structural design for effectively achieving maximum performance of the vehicle, and to provide an efficient and optimum heat management, Thereby improving the overall efficiency and minimizing power consumption for winter heating.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1 ... vehicle air conditioner 10 ... air conditioner case
20 ... evaporator 30 ... heater
32 ... auxiliary heater 100 ... engine section
110 ... first heat exchanger 120 ... second heat exchanger
130 ... Can heat exchanger 140 ... Heat pump system
141 ... electric component 142 ... heat generating component
210 ... first cooling water lines 211, 221 ... first and second water pumps
220 ... second cooling water line 230 ... connection line
241, 242 ... first and second bypass lines 300 ... switching valve
310, 320 ... First and second valves 341, 342 ... First and second bypass valves
400 ... control unit
510,520,530,540 ... Integrated thermal management system for vehicles

Claims (10)

A first heat exchanger that uses the first cooling water as a heating medium to heat-exchange the first cooling water with the outside air;
A second heat exchanger for exchanging the second cooling water with the outside air by using the second cooling water as a heating medium;
A first cooling water line in which the first heat exchanger and the engine section of the vehicle are arranged and in which the first cooling water circulates;
A second cooling water line in which the second heat exchanger, the electric component and the heat generating component of the vehicle are arranged, and the second cooling water circulates;
A connection line connecting the first cooling water line and the second cooling water line;
A switching valve provided at a position where each of the first cooling water line and the second cooling water line meets the connection line and switches the flow of the first cooling water and the second cooling water; And
A controller for controlling the switching valve according to a summer cooling mode and a winter heat-up mode to separate or integrate the first cooling water line and the second cooling water line to manage the engine and the heat- And an integrated thermal management system for a vehicle. The method according to claim 1,
Wherein the first cooling water line comprises:
A second bypass line for bypassing the first heat exchanger,
And a second bypass valve provided at a portion where the first cooling water line and the second bypass line meet to selectively switch the flow of the first cooling water to the first cooling water line or the second bypass line Included integrated thermal management system for vehicles. The method according to claim 1,
Wherein the electric component and the heat generating component of the vehicle are arranged in series on the second cooling water line,
Wherein the second cooling water line
A first bypass line for bypassing the heat generating component,
And a first bypass valve provided at a portion where the second cooling water line and the first bypass line meet to selectively switch the flow of the second cooling water to the second cooling water line or the first bypass line Included integrated thermal management system for vehicles. The method according to claim 1,
Wherein the electric component and the heat generating component of the vehicle are arranged in parallel on the second cooling water line. The method according to claim 1,
The vehicle includes a heat pump system having a water-cooling heat exchanger for performing cooling and heating of the vehicle using an air conditioning system, and for exchanging heat between the refrigerant and the cooling water,
The water-
And the second cooling water line is connected to the second cooling water line so that the refrigerant circulating the second cooling water and the heat pump system exchanges heat with each other. The method according to claim 1,
The switching valve includes:
A first valve provided at a portion where the first cooling water line and the connection line meet, for switching the flow of the first cooling water to the first cooling water line or the connection line,
And a second valve provided at a portion where the second cooling water line and the connection line meet to switch the flow of the second cooling water to the second cooling water line or the connection line. The method of claim 6,
Wherein the first valve and the second valve,
An integrated heat management system for a vehicle comprising a three-way valve. The method according to claim 1,
The engine unit includes:
Fuel cell, motor, gasoline, and diesel as an energy source. The method according to claim 1,
Wherein,
In the cooling mode,
Wherein the control unit controls the switching valve so that the connection line is closed so that the first cooling water line and the second cooling water line are separated from each other. The method according to claim 1,
Wherein,
In the heat-up mode,
Wherein the control unit controls the switching valve so that the connection line is opened so that the first cooling water line and the second cooling water line are integrally connected to supply heat generated in the engine unit to the second cooling water line.

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