KR20230174788A - Battery thermal management system for hybrid vehicle - Google Patents

Abstract

The present invention relates to a battery thermal management system for a hybrid vehicle, comprising: a thermal management unit that circulates a first heat exchange medium and exchanges heat with the battery module; an exhaust heat recovery unit that recovers heat from exhaust gas through which a second heat exchange medium circulates; and an exhaust heat recovery unit. It branches off from an indoor heating unit and an exhaust heat recovery unit that receive the second heat exchange medium from the interior and heat the room, and includes a first heating unit that heat exchanges the second heat exchange medium with the first heat exchange medium to increase the temperature of the battery module. It is characterized by

Description

Battery thermal management system for hybrid vehicles {BATTERY THERMAL MANAGEMENT SYSTEM FOR HYBRID VEHICLE}

The present invention relates to a battery thermal management system for a hybrid vehicle, and more specifically, to a battery thermal management system for a hybrid vehicle that can improve the output efficiency and fuel efficiency of the battery module.

In general, a hybrid vehicle (Hybrid Electric Vehicle, HEV) is a vehicle that uses two or more different types of drive sources, typically an engine that generates driving force by burning fuel and a motor that generates driving force with electric energy from a battery. It refers to a vehicle that is driven.

The high-voltage battery module of these hybrid vehicles consists of a low-voltage battery of 12V and a high-voltage battery of 100V to 400V in one module.

However, conventional hybrid vehicles are only equipped with a low-capacity air-cooled cooling system to prevent deterioration due to overheating of the battery module, and there is no separate system to actively perform thermal management of the battery module. not.

In addition, a conventional hybrid vehicle operates the PTC heater through power supply from a low-voltage battery to raise the internal temperature of the passenger's interior space in a low-temperature environment section of about -7°C. However, if the low-voltage battery is continuously used in such initial starting conditions, the amount of charge from the high-voltage battery to the low-voltage battery increases, which ultimately causes a problem in that the efficiency of the high-voltage battery for driving the vehicle is reduced. Accordingly, in current hybrid vehicles, the amount of fuel injected inside the engine is increased from room temperature (about 25℃) in low-temperature environments to raise the engine coolant temperature to around 80℃ as quickly as possible, and then the increased coolant is circulated through the heater core to cool the interior. Increase the temperature. However, in this process, excessive fuel consumption causes additional problems such as increased carbon dioxide emissions and decreased fuel efficiency.

The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2013-0068893 (published on June 26, 2013, title of the invention: Electric device cooling system for hybrid vehicle).

The purpose of the present invention is to provide a battery thermal management system for a hybrid vehicle that can improve the output efficiency and fuel efficiency of the battery module.

In order to solve the above-described problem, a battery thermal management system for a hybrid vehicle according to the present invention includes: a thermal management unit in which a first heat exchange medium circulates and exchanges heat with the battery module; an exhaust heat recovery unit that circulates the second heat exchange medium and recovers heat from the exhaust gas; an indoor heating unit that receives the second heat exchange medium from the exhaust heat recovery unit and heats the room; and a first heating unit branched from the exhaust heat recovery unit and heat-exchanging the second heat exchange medium with the first heat exchange medium to increase the temperature of the battery module.

Additionally, the heat management unit may include a first circulation section through which the first heat exchange medium circulates; and a heat management member connected to the first circulation unit and heat-exchanging the first heat exchange medium with the battery module.

In addition, the exhaust heat recovery unit includes a second circulation section through which the second heat exchange medium circulates; and an exhaust heat recovery member connected to the second circulation unit and heat-exchanging the second heat exchange medium with the exhaust gas.

In addition, the indoor heating unit includes a first heater core part connected to the second circulation part and heating air through which the second heat exchange medium discharged from the exhaust heat recovery member flows; A heating member that heats air by receiving power from the battery module; and a blower unit supplying air heated by the first heater core unit and the heating member to the room.

In addition, the indoor heating unit further includes a second heater core unit in which a fourth heat exchange medium that exchanges heat with the engine flows and heats the air.

Additionally, an indoor temperature sensing unit that detects the indoor temperature of the vehicle; and an interior heating control unit that determines a heating mode based on the interior temperature of the vehicle detected by the interior temperature detection unit and controls the operation of the interior heating unit according to the determined heating mode.

In addition, the indoor heating control unit is configured to operate a heating promotion mode in which, when the indoor temperature of the vehicle detected by the indoor temperature detection unit is below the first set indoor temperature, the fuel injection amount of the engine is increased and the heating member is operated. Execute, and when the indoor temperature of the vehicle detected by the indoor temperature detection unit is higher than the second set indoor temperature, a normal heating mode is executed in which the fuel injection amount of the engine is reduced and the operation of the heating member is stopped.

In addition, the first heating unit includes a first heat transfer unit that is connected to the first circulation unit and the second circulation unit and transfers the second heat exchange medium discharged from the exhaust heat recovery member to the first circulation unit; ; a first heat recovery unit connected to the first circulation unit and the second circulation unit, and recovering the second heat exchange medium discharged from the heat management member to the second circulation unit; and a first heating opening/closing unit that selectively opens and closes the first heat transfer unit and the first heat recovery unit.

Additionally, a sensing unit that detects the temperature of the battery module; and a control unit that determines a thermal management mode based on the temperature change of the battery module measured by the sensing unit and controls the operation of the first heating unit according to the determined thermal management mode.

Additionally, the control unit executes a first heating mode in which the first heating unit is operated when the temperature of the battery module detected by the sensing unit is below the first set temperature.

In addition, the control unit executes a first buffering mode that stops the operation of the first heating unit when the temperature of the battery module detected by the sensing unit is greater than the first set temperature and less than the second set temperature. .

The battery thermal management system for a hybrid vehicle according to the present invention actively maintains the temperature of the battery module in the optimal efficiency range through a thermal management mode through the first heating unit, the second heating unit, and the cooling unit, thereby preventing the battery module from overheating or overcooling. Performance degradation can be prevented.

In addition, the battery thermal management system for a hybrid vehicle according to the present invention is configured to use the heat recovered from the exhaust gas as an additional heat source for indoor heating, so that the indoor temperature can be raised more quickly and in a low-temperature environment. By reducing initial fuel consumption and power consumption for quick warm-up of indoor temperature, it is possible to prevent deterioration in fuel efficiency and power efficiency of the battery module.

1 is a block diagram schematically showing the configuration of a battery thermal management system for a hybrid vehicle according to an embodiment of the present invention.
Figure 2 is a diagram schematically showing the configuration of a battery thermal management system for a hybrid vehicle according to an embodiment of the present invention.
Figure 3 is a diagram schematically showing the configuration of an indoor heating unit according to an embodiment of the present invention.
Figure 4 is a flowchart schematically showing the operation process of the heating mode by the indoor heating control unit according to an embodiment of the present invention.
Figure 5 is a flowchart schematically showing the operation process of the thermal management mode by the control unit according to an embodiment of the present invention.
Figure 6 is a diagram schematically showing the operating state of the first heating mode according to an embodiment of the present invention.
Figure 7 is a diagram schematically showing the operating state of the second heating mode according to an embodiment of the present invention.
Figure 8 is a diagram schematically showing the operating state of the cooling mode according to an embodiment of the present invention.

Hereinafter, an embodiment of a battery thermal management system for a hybrid vehicle according to the present invention will be described with reference to the attached drawings.

In this process, the thickness of lines or sizes of components shown in the drawing may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

In addition, in this specification, when a part is said to be "connected (or connected)" to another part, this does not only mean that it is "directly connected (or connected)" but also "connected (or connected)" with another member in between. Also includes cases where there is an “indirect connection (or connection).” In this specification, when a part is said to “include (or include)” a certain component, this does not exclude other components, unless specifically stated to the contrary, but rather “includes (or includes)” other components. It means you can do it.

Additionally, the same reference numerals may refer to the same components throughout this specification. Even if the same or similar reference signs are not mentioned or explained in a particular drawing, the numbers may be explained based on other drawings. Additionally, even if there are parts that are not indicated by reference signs in a specific drawing, those parts can be explained based on other drawings. In addition, the number, shape, size, and relative differences in size of detailed components included in the drawings of the present application are set for convenience of understanding, do not limit the embodiments, and may be implemented in various forms.

In addition, the hybrid vehicle described throughout this specification is a vehicle that can charge the battery module 10 using external power in addition to a general hybrid vehicle that runs by controlling the mechanical power of the engine and the electrical power of the motor. It may be a plug-in hybrid vehicle.

Additionally, the battery module 10 is a component that provides power for driving the motor of a hybrid vehicle, and may include a battery case (not shown) and a plurality of unit batteries (not shown) mounted within the battery case.

1 is a block diagram schematically showing the configuration of a battery thermal management system for a hybrid vehicle according to an embodiment of the present invention, and FIG. 2 is a diagram schematically showing the configuration of a battery thermal management system for a hybrid vehicle according to an embodiment of the present invention. .

1 and 2, the battery heat management system for a hybrid vehicle according to an embodiment of the present invention includes a heat management unit 100, an exhaust heat recovery unit 200, a cycle unit 300, an interior heating unit 400, and a heat management unit 100. It includes a first heating unit 500, a second heating unit 600, a cooling unit 700, a sensing unit 800, and a control unit 900.

The heat management unit 100 circulates the first heat exchange medium (A) and exchanges heat with the battery module 10. That is, the heat management unit 100 performs the function of controlling the temperature of the battery module 10 by heat exchange between the first heat exchange medium (A) and the battery module 10.

Here, the first heat exchange medium (A) may be exemplified by various types of coolant, liquid refrigerant, gas refrigerant, etc. that can transport heat energy through heat exchange.

The thermal management unit 100 according to an embodiment of the present invention includes a first circulation unit 110, a thermal management member 120, and a chiller unit 130.

The first circulation unit 110 guides the flow of the first heat exchange medium (A) circulating through the heat management unit 100. The first circulation unit 110 according to an embodiment of the present invention is formed to have the shape of a pipe through which the first heat exchange medium (A) can flow. The first circulation unit 110 forms a closed flow path together with the heat management member 120 and the chiller unit 130, which will be described later, so that the first heat exchange medium (A) can circulate and flow along the extension direction. The specific length and arrangement of the first circulation unit 110 can be changed in various ways depending on the structure of the vehicle, the installation location of the heat management member 120 and the chiller unit 130, etc.

The first circulation part 110 includes a first circulation pump 111 that provides flow force to the first heat exchange medium (A) so that the first heat exchange medium (A) can flow smoothly along the first circulation part 110. ) can be installed.

The heat management member 120 is connected to the first circulation unit 110 and exchanges heat with the first heat exchange medium (A) with the battery module 10. The thermal management member 120 according to an embodiment of the present invention may be exemplified by various types of cooling plates that are installed to face the battery module 10 and perform thermal management of the battery module 10. Inside the heat management member 120, the first heat exchange medium (A) introduced from the first circulation unit 110 circulates throughout the entire area of the heat management member 120 and induces a heat exchange action with the battery module 10. A flow path 121 is formed. Both sides of the heat exchange passage 121 are connected to the first circulation section 110, respectively. The heat exchange passage 121 receives the first heat exchange medium (A) discharged from the chiller unit 130, which will be described later, from the first circulation unit 110 to the inside through one side. The heat management passage 121 delivers the first heat exchange medium (A), which has completed heat exchange with the battery module 10, back to the first circulation unit 110 through the other side.

The chiller unit 130 is arranged to be spaced apart from the heat management member 120 and is connected to the first circulation unit 110. The chiller unit 130 includes a first heat exchange medium (A) delivered from the first circulation unit 110, and a third heat exchange medium (C) flowing along the second heating unit 600 or cooling unit 700, which will be described later. ) performs the function of heating or cooling the first heat exchange medium (A) delivered to the heat management member 120 by heat exchanging.

The chiller unit 130 according to an embodiment of the present invention may be exemplified by various types of heat exchangers having a first chiller passage 131 and a second chiller passage 132 that are independent of each other formed therein. The first chiller passage 131 is connected at both ends to the first circulation section 110 to allow the first heat exchange medium (A) flowing through the first circulation section 110 to flow into the chiller section 130, and The first heat exchange medium (A) discharged from the unit 130 is delivered back to the first circulation unit 110. The second chiller passage 132 is connected at both ends to the second heating unit 600 and the cooling unit 700, which will be described later, and contains a third heat exchange medium (C) flowing through the second heating unit 600 and the cooling unit 700. ) is introduced into the chiller unit 130, and the third heat exchange medium (C) discharged from the chiller unit 130 is delivered back to the second heating unit 600 and the cooling unit 700. The first chiller passage 131 and the second chiller passage 132 are arranged adjacent to each other and induce a heat exchange action between the first heat exchange medium (A) and the third heat exchange medium (C) flowing inside.

The exhaust heat recovery unit 200 recovers heat from the exhaust gas (G) of the vehicle as the second heat exchange medium (B) circulates. That is, the exhaust heat recovery unit 200 performs the function of collecting heat energy from the exhaust gas (G) discharged as the engine is driven through the second heat exchange medium (B).

Here, the second heat exchange medium (B) may be exemplified by various types of coolant, liquid refrigerant, gas refrigerant, etc. that can transport heat energy through heat exchange. Additionally, the second heat exchange medium (B) may be the same heat exchange medium as the first heat exchange medium (A).

The exhaust heat recovery unit 200 according to an embodiment of the present invention includes a second circulation unit 210 and an exhaust heat recovery member 220.

The second circulation unit 210 guides the flow of the second heat exchange medium (B) circulating through the exhaust heat recovery unit 200. The second circulation unit 210 according to an embodiment of the present invention is formed to have the shape of a pipe through which the second heat exchange medium (B) can flow. The second circulation unit 210 forms a waste passage with the exhaust heat recovery member 220, which will be described later, so that the second heat exchange medium (B) can circulate in the extending direction. The specific length and arrangement of the second circulation unit 210 can be changed in various ways depending on the structure of the vehicle, the installation location of the exhaust heat recovery member 220, etc.

The second circulation part 210 includes a second circulation pump 211 that provides flow force to the second heat exchange medium (B) so that the second heat exchange medium (B) can flow smoothly along the second circulation part 210. ) can be installed.

The exhaust heat recovery member 220 is connected to the second circulation unit 210, and receives the second heat exchange medium (B) from the second circulation unit 210 and the exhaust gas (not shown) received from the exhaust manifold (not shown). It performs the function of heating the second heat exchange medium (B) by heat exchanging G).

The exhaust heat recovery member 220 according to an embodiment of the present invention may be exemplified by various types of heat exchangers having a first exhaust flow path 221 and a second exhaust flow path 222 that are independent of each other formed therein. The first exhaust passage 221 is connected at both ends to the second circulation unit 210 to allow the second heat exchange medium (B) flowing through the second circulation unit 210 to flow into the exhaust heat recovery member 220, The second heat exchange medium (B) discharged from the exhaust heat recovery member 220 is delivered back to the second circulation unit 210. The second exhaust flow path 222 is connected at both ends to the exhaust manifold to allow the exhaust gas (G) flowing through the exhaust manifold to flow into the interior of the exhaust heat recovery member 220, and to allow the exhaust gas discharged from the exhaust heat recovery member 220. Delivers gas (G) back to the exhaust manifold. The first exhaust passage 221 and the second exhaust passage 222 are arranged adjacent to each other to induce heat exchange between the second heat exchange medium (B) and the exhaust gas (G) flowing inside.

The cycle unit 300 has a third circulation part 310 in which the third heat exchange medium (C) circulates and flows, and the third heat exchange medium (C) flowing in the third circulation part 310 in a high temperature and high pressure gaseous state. A compressor 320 that compresses, a condenser 330 that radiates heat to the outside and condenses the compressed third heat exchange medium (C) into a liquid state, and a low temperature condensed third heat exchange medium (C) in the condenser 330. , It is configured to include an expansion valve 340 that expands to a low-pressure liquid state and an evaporator 350 that absorbs heat from the outside and evaporates the third heat exchange medium (C) expanded in the expansion valve 340 into a gaseous state. . In addition, an accumulator 360 is installed between the compressor 320 and the evaporator 350 to transfer only the gaseous third heat exchange medium (C) to the compressor 320, and the condenser 330 and the expansion valve 340 A receiver dryer 370 that delivers only the third heat exchange medium (C) in a liquid state to the expansion valve 340 may be installed between the. The cycle unit 300 according to an embodiment of the present invention may be exemplified by an air conditioning device installed in a vehicle, a cooling device for electrical components, etc. Here, the third heat exchange medium (C) may be exemplified by various types of coolant, liquid refrigerant, gas refrigerant, etc. that can transport heat energy through heat exchange.

The indoor heating unit 400 receives the second heat exchange medium (B) from the exhaust heat recovery unit 200 and heats the indoor space. More specifically, the indoor heating unit 400 corresponds to a configuration that heats the room by utilizing the heat recovered from the exhaust heat recovery unit 200 as an additional heat source in an existing indoor heating device that uses heat generated from the engine 20. .

Figure 3 is a diagram schematically showing the configuration of an indoor heating unit according to an embodiment of the present invention.

The indoor heating unit 400 according to an embodiment of the present invention includes a first heater core unit 410, a second heater core unit 420, a heating member 430, a blower unit 440, and an indoor temperature sensing unit ( 450), including an indoor heating control unit 460.

The first heater core unit 410 is connected to the second circulation unit 210, and receives the second heat exchange medium (B) discharged from the exhaust heat recovery member 220 from the second circulation unit 210. First heater The core portion 410 has a second heat exchange medium (B) flowing therein and heats the air inside the indoor heating unit 400 through a heat exchange action. The first heater core unit 410 according to an embodiment of the present invention may be exemplified by various types of heat exchangers having a first heating passage 411 formed therein. The first heating passage 411 is connected at both ends to the second circulation unit 210 to introduce the second heat exchange medium (B) flowing through the second circulation unit 210 into the first heater core unit 410. and the second heat exchange medium (B) discharged from the first heater core unit 410 is delivered back to the second circulation unit 210. In this process, the first heating passage 411 heats the air by inducing heat exchange between the second heat exchange medium (B) flowing inside and the air inside the indoor heating unit 400.

The second heater core unit 420 is connected to the engine cooling line 21 through which the fourth heat exchange medium (D), which absorbs heat generated from the engine 20 through heat exchange with the engine 20, circulates. , the fourth heat exchange medium (D) is delivered from the engine cooling line (21). The fourth heat exchange medium (D) flows inside the second heater core unit 420 and heats the air inside the indoor heating unit 400 through a heat exchange action. Here, the fourth heat exchange medium (D) may be exemplified by various types of coolant, liquid refrigerant, gas refrigerant, etc. that can transport heat energy through heat exchange action. The second heater core unit 420 according to an embodiment of the present invention may be exemplified by various types of heat exchangers having a second heating passage 421 formed therein. The second heating passage 421 is connected at both ends to the engine cooling line 21 to allow the fourth heat exchange medium D flowing through the engine cooling line 21 to flow into the second heater core portion 420, The fourth heat exchange medium (D) discharged from the second heater core unit 420 is delivered back to the engine cooling line (21). The second heating passage 421 heats the air by inducing heat exchange between the fourth heat exchange medium D flowing inside and the air inside the indoor heating unit 400.

The heating member 430 receives power from the battery module 10 and heats the air inside the indoor heating unit 400. The heating member 430 according to an embodiment of the present invention is electrically connected to the battery module 10, and converts the electrical energy supplied from the battery module 10 into heat energy by generating heat and outputs positive temperature (PTC) energy. Coefficient) can be exemplified by a heater, etc.

The blower unit 440 supplies air heated by the first heater core unit 410, the second heater core unit 420, and the heating member 430 to the room. The blower unit 440 according to an embodiment of the present invention may be exemplified as various types of blowing devices that can flow the heated air inside the interior heating unit 400 into the interior space of the vehicle.

The indoor temperature sensing unit 450 detects the indoor temperature of the vehicle during the operation of the indoor heating unit 400. The indoor temperature sensing unit 450 according to an embodiment of the present invention may be exemplified by various types of temperature sensors that are installed inside the vehicle and can detect the indoor temperature of the vehicle.

The interior heating control unit 460 determines the heating mode of the interior heating unit 400 based on the interior temperature of the vehicle detected by the interior temperature detection unit 450, and operates the interior heating unit 400 according to the determined heating mode. Controls movement. The indoor heating control unit 460 according to an embodiment of the present invention includes a heating member 430, an electronic control unit (ECU) electrically connected to the fuel injection device of the engine 20, and a central processing unit ( CPU: It can be implemented as a Central Processing Unit, Processor, or SoC (System on Chip), and can control multiple hardware or software components by running an operating system or application, and perform various data processing and calculations. It can be done. Additionally, the indoor heating control unit 460 may be configured to execute at least one command stored in the memory and store the execution result data in the memory.

Hereinafter, the operation process of the heating mode by the indoor heating control unit 460 according to an embodiment of the present invention will be described in detail.

Figure 4 is a flowchart schematically showing the operation process of the heating mode by the indoor heating control unit according to an embodiment of the present invention.

First, the indoor temperature detection unit 450 detects the indoor temperature of the vehicle (S10).

The indoor heating control unit 460 determines whether the temperature detected by the indoor temperature detection unit 450 is below the first set indoor temperature (TA) (S20).

If the temperature detected by the indoor temperature detection unit 450 is below the first set indoor temperature (TA), the indoor heating control unit 460 executes the heating promotion mode (S30). Here, the first set room temperature (TA) may be exemplified to be about -7°C.

More specifically, in the heating promotion mode, the indoor heating control unit 460 increases the fuel injection amount of the engine 20 so that the temperature of the fourth heat exchange medium (D) delivered to the second heater core unit 420 is heated more quickly. encourage it as much as possible.

At the same time, the indoor heating control unit 460 operates the heating member 430 in the heating promotion mode.

The air inside the indoor heating unit 400 is composed of a second heat exchange medium (B) flowing through the first heater core unit 410, a fourth heat exchange medium (D) flowing through the second heater core unit 420, and a heating member. It is heated by thermal energy generated from (430).

Heated air is supplied into the interior by the blower unit 440 and increases the temperature of the interior space of the vehicle.

This heating promotion mode is maintained until the indoor temperature detected by the indoor temperature detection unit 450 reaches the second set indoor temperature (TB). Here, the first set room temperature (TA) may be exemplified to be about 25°C.

Thereafter, the indoor heating control unit 460 determines whether the temperature detected by the indoor temperature detection unit 450 is below the second set indoor temperature (TB) (S40).

If the temperature detected by the indoor temperature detection unit 450 is higher than the second set indoor temperature (TB), the indoor heating control unit 460 executes the normal heating mode (S50).

More specifically, in the normal heating mode, the indoor heating control unit 460 reduces the fuel injection amount of the engine 20, which was increased in the heating promotion mode, and stops the operation of the heating member 430.

The air inside the indoor heating unit 400 is heated by the second heat exchange medium (B) flowing through the first heater core portion 410 and the fourth heat exchange medium (D) flowing through the second heater core portion 420. do.

Heated air is supplied into the interior by the blower unit 440 and increases the temperature of the interior space of the vehicle.

In this process, the interior heating unit 400 uses the second heat exchange medium (B) recovered from the exhaust heat recovery unit 200 as an additional heat source compared to the existing heating system, so that the interior temperature of the vehicle in a low temperature environment is maintained within the second setting interior. The time to reach the temperature (TB), that is, the time to switch from the accelerated heating mode to the normal heating mode, can be shortened. As the time for which the heating promotion mode is maintained is shortened, the indoor heating unit 400 can improve fuel efficiency by reducing the amount of fuel consumed for rapid heating of the fourth heat exchange medium (D) during the execution of the heating promotion mode, The efficiency of the battery module 10 can be improved by reducing the power consumption of the battery module 10 for operating the heating member 430.

The first heating unit 500 is branched from the exhaust heat recovery unit 200 and primarily increases the temperature of the battery module 10 by heat exchanging the second heat exchange medium (B) with the first heat exchange medium (A). It functions as

The first heating unit 500 according to an embodiment of the present invention includes a first heat transfer unit 510, a first heat recovery unit 520, and a first heating opening/closing unit 530.

The first heat transfer unit 510 is connected to the first circulation unit 110 and the second circulation unit 210, and transfers the second heat exchange medium (B) discharged from the exhaust heat recovery member 220 to the first circulation unit ( 110). That is, the first heat transfer unit 510 diverts the flow of the second heat exchange medium (B) flowing through the second circulation unit 210 to the first circulation unit 110 to form the first heat exchange medium (A) and the second heat exchange medium (A). 2It functions as a configuration that induces the heat exchange action of the heat exchange medium (B).

Hereinafter, the first heat transfer unit 510 directly mixes the first heat exchange medium (A) and the second heat exchange medium (B) inside the first circulation unit 110 to form the first heat exchange medium (A) and the second heat exchange medium (B). 2. Inducing heat exchange in the heat exchange medium (B) will be explained using an example. However, the first heat transfer unit 510 is not limited to this, and independently flows the second heat exchange medium (B) and the first heat exchange medium (A) at positions adjacent to each other, thereby forming the first heat exchange medium (A) and the second heat exchange medium (A). It is also possible to induce heat exchange in the heat exchange medium (B).

The first heat transfer unit 510 according to an embodiment of the present invention has one end in communication with the first circulation unit 110 connected to the inlet side of the chiller unit 130, and the other end is connected to the outlet of the exhaust heat recovery member 220. It may be formed to have the shape of a pipe in communication with the second circulation unit 210 connected to the side. The other end of the first heat transfer unit 510 may be in communication with the second circulation unit 210 connected to the outlet side of the first heater core unit 410 of the indoor heating unit 400.

The first heat recovery unit 520 is connected to the first circulation unit 110 and the second circulation unit 210, and transfers the second heat exchange medium (B) discharged from the heat management member 120 to the second circulation unit 210. ) is recovered. That is, the first heat transfer unit 510 functions as a component for recovering the second heat exchange medium (B), in which the first heat exchange medium (A) and the second heat exchange medium (B) have been completed, to the exhaust heat recovery member 220.

The first heat recovery unit 520 according to an embodiment of the present invention has one end in communication with the first circulation unit 110 connected to the outlet side of the chiller unit 130, and the other end is the inlet of the exhaust heat recovery member 220. It may be formed to have the shape of a pipe in communication with the second circulation unit 210 connected to the side.

The first heating opening and closing unit 530 selectively opens and closes the first heat transfer unit 510 and the first heat recovery unit 520.

The first heating switch 530 according to an embodiment of the present invention includes a first heat transfer switch 531 and a first heat recovery switch 532.

The first heat transfer opening/closing unit 531 is connected to the first heat transfer unit 510 and adjusts the opening/closing state of the first heat transfer unit 510. The first heat transfer opening/closing unit 531 may be provided as a pair. One of the pair of first heat transfer openings and closing units 531 is connected between one end of the first heat transfer unit 510 and the first circulation unit 110 to connect the first heat transfer unit 510 and the first circulation unit. Controls the communication state of unit 110. In addition, the other one of the pair of first heat transfer openings and closing units 531 is connected between the other end of the first heat transfer unit 510 and the second circulation unit 210 to connect the first heat transfer unit 510 and the second circulation unit 210. Controls the communication state of the circulation unit 210. In this case, the pair of first heat transfer openings and closing units 531 may be exemplified as a 3-way valve capable of controlling the flow direction of fluid for three flow paths. The operation of the pair of first heat transfer openings and closing units 531 is controlled by a control unit 900, which will be described later, and can open or close the first heat transfer unit 510.

The first heat recovery opening/closing unit 532 is connected to the first heating recovery unit 520 and adjusts the opening/closing state of the first heating recovery unit 520. The first heat recovery opening/closing unit 532 may be provided as a pair. One of the pair of first heat recovery openings and closing units 532 is connected between one end of the first heat recovery unit 520 and the first circulation unit 110 to connect the first heat recovery unit 520 and the first circulation unit. Controls the communication state of unit 110. In addition, the other one of the pair of first heat recovery openings and closing units 532 is connected between the other end of the first heat recovery unit 520 and the second circulation unit 210 to connect the first heat recovery unit 520 and the second circulation unit 210. 2 Controls the communication state of the circulation unit 210. In this case, the pair of first heat recovery openings and closing units 532 may be exemplified as a 3-way valve capable of controlling the flow direction of fluid for three flow paths. The operation of the pair of first heat recovery openings and closing units 532 is controlled by a control unit 900, which will be described later, and can open or close the first heat transfer unit 510.

The second heating unit 600 is branched from the cycle unit 300, and after the operation of the first heating unit 500, the high-temperature, high-pressure third heat exchange medium C discharged from the compressor 320 is transferred to the first heating unit 500. It functions as a configuration that secondarily increases the temperature of the battery module 10 by exchanging heat with the heat exchange medium (A).

The second heating unit 600 according to an embodiment of the present invention includes a second heat transfer unit 610, a second heat recovery unit 620, and a second heating opening/closing unit 630.

The second heat transfer unit 610 is branched from the third circulation unit 310 connected between the compressor 320 and the condenser 330, and the high temperature and high pressure third heat exchange medium discharged from the compressor 320 ( C) is delivered to the chiller unit 130. That is, the second heat transfer unit 610 directs the flow of the third heat exchange medium (C), which is discharged from the compressor 320 and flows through the third circulation unit 310 at high temperature and high pressure, to the chiller unit 130. It functions as a detour configuration.

The second heat transfer unit 610 according to an embodiment of the present invention may be formed to have the shape of a pipe with one end in communication with the third circulation unit 310 connected between the compressor 320 and the condenser 330. there is. The second heat transfer unit 610 communicates with the third circulation unit 310, the other end of which is connected between the evaporator 350 and the accumulator 360, and one end of the cooling transfer unit 710, which will be described later. That is, the second heat transfer unit 610 is interconnected with the cooling transfer unit 710 and shares a portion of the path for transferring the third heat exchange medium (C) to the chiller unit 130 with the cooling transfer unit 710. do. Accordingly, the second heat transfer unit 610 can reduce the number of pipes for delivering the third heat exchange medium (C) to the chiller unit 130 and simplify the structure of the chiller unit 130.

The second heat recovery unit 620 branches off from the third circulation unit 310 connected between the compressor 320 and the evaporator 350, and collects the third heat exchange medium (C) discharged from the chiller unit 130. It is recovered to the 3rd circulation unit (310). That is, the second heat transfer unit 610 functions as a component for recovering the third heat exchange medium (C), which has completed heat exchange with the first heat exchange medium (A) in the chiller unit 130, to the third circulation unit 310. .

The second heat recovery unit 620 according to an embodiment of the present invention is formed to have the shape of a pipe with one end in communication with the third circulation unit 310 connected between the evaporator 350 and the accumulator 360. . Accordingly, the second heat recovery unit 620 delivers the third heat exchange medium (C) discharged from the chiller unit 130 back to the compressor 320, thereby increasing the temperature through heat exchange with the first heat exchange medium (A). The reduced third heat exchange medium (C) can be induced to return to a state of high temperature and high pressure. The other end of the second heat recovery unit 620 communicates with the outlet of the second chiller passage 132 provided in the chiller unit 130.

The second heating opening and closing unit 630 selectively opens and closes the second heat transfer unit 610 and the second heat recovery unit 620.

The second heating switch 630 according to an embodiment of the present invention includes a second heat transfer switch 631 and a second heat recovery switch 632.

The second heat transfer opening/closing unit 631 selectively opens and closes the second heat transfer unit 610. The second heat transfer opening/closing unit 631 is connected between one end of the second heat transfer unit 610 and the third circulation unit 310 to communicate with the second heat transfer unit 610 and the third circulation unit 310. Adjust the condition. In this case, the second heat transfer opening/closing unit 631 is exemplified as a 3-way valve capable of controlling the flow direction of the fluid for the three flow paths and controlling the flow direction of the third heat exchange medium (C) for the three flow paths. It can be. The operation of the second heat transfer opening/closing unit 631 is controlled by a control unit 900, which will be described later, and can open or close the second heat transfer unit 610.

The second heat recovery opening/closing unit 632 selectively opens and closes the second heating recovery unit 620. The second heat recovery opening/closing unit 632 is connected between one end of the second heating recovery unit 620 and the third circulation unit 310 to communicate with the second heating recovery unit 620 and the third circulation unit 310. Adjust the condition. In this case, the second heat recovery opening/closing unit 632 may be exemplified as a 3-way valve capable of controlling the flow direction of fluid for three flow paths. The operation of the second heat recovery opening/closing unit 632 is controlled by a control unit 900, which will be described later, and can open or close the second heating recovery unit 620.

The cooling unit 700 is branched from the cycle unit 300 and exchanges heat with the low-temperature, low-pressure third heat exchange medium (C) discharged from the evaporator 350 with the first heat exchange medium (A) to form the battery module (10). It functions as a component that lowers the temperature.

The cooling unit 700 according to an embodiment of the present invention includes a cooling transmission unit 710, a cooling recovery unit 720, and a cooling opening/closing unit 730.

The cooling transfer unit 710 branches off from the third circulation unit 310 connected between the compressor 320 and the evaporator 350, and transfers the third heat exchange medium (C) discharged from the evaporator 350 to the chiller unit 130. ) is transmitted. That is, the cooling transfer unit 710 diverts the flow of the third heat exchange medium (C), which is discharged from the evaporator 350 and flows through the third circulation unit 310 at low temperature and low pressure, to the chiller unit 130. It functions as a composition. The cooling transfer unit 710 according to an embodiment of the present invention has one end in communication with the third circulation unit 310 connected between the evaporator 350 and the accumulator 360, and the other end with the second chiller passage 132. It may be formed to have the shape of a pipe communicating with the inlet.

One end of the cooling transfer unit 710 also communicates with the other end of the second heat transfer unit 610. In this case, the cooling transfer unit 710 serves as a passage for transferring the third heat exchange medium (C) discharged from the evaporator 350 to the chiller unit 130 by the operation of the cooling transfer opening and closing unit 731, which will be described later. At the same time, it can also serve as a passage for delivering the third heat exchange medium (C) flowing along the second heat transfer unit 610 to the chiller unit 130. Accordingly, the cooling transfer unit 710 can reduce the number of pipes for delivering the third heat exchange medium (C) to the chiller unit 130 and simplify the structure of the chiller unit 130.

A transfer expansion valve 711 may be additionally installed in the cooling transfer unit 710 to expand the third heat exchange medium (C) flowing along the cooling transfer unit 710 and supply it to the chiller unit 130.

The cooling recovery unit 720 branches off from the third circulation unit 310 connected between the compressor 320 and the evaporator 350, and transfers the third heat exchange medium (C) discharged from the chiller unit 130 into the third circulation unit. Recover to unit 310. That is, the second heat transfer unit 610 functions as a component for recovering the third heat exchange medium (C), which has completed heat exchange with the first heat exchange medium (A) in the chiller unit 130, to the third circulation unit 310. . The cooling recovery unit 720 according to an embodiment of the present invention may have the same configuration as the second heating recovery unit 620. That is, the cooling recovery unit 720 and the second heating recovery unit 620 may be formed to share the flow path of the third heat exchange medium (C). Accordingly, the cooling recovery unit 720 and the second heating recovery unit 620 can reduce the number of pipes for recovering the third heat exchange medium (C) to the third circulation unit 310, and the chiller unit 130 ) can be simplified. Alternatively, the cooling recovery unit 720 may be formed separately from the second heating recovery unit 620.

The cooling opening/closing unit 730 selectively opens and closes the cooling transfer unit 710 and the cooling recovery unit 720.

The cooling opening and closing unit 730 according to an embodiment of the present invention includes a cooling transfer opening and closing unit 731 and a cooling recovery opening and closing unit 732.

The cooling transfer opening/closing unit 731 selectively opens and closes the cooling transfer unit 710. The cooling transfer opening/closing unit 731 is connected to the point where the third circulation unit 310, the other end of the second heat transfer unit 610, and one end of the cooling transfer unit 710 intersect, forming the third circulation unit 310, The communication state between the second heat transfer unit 610 and the cooling transfer unit 710 is adjusted. In this case, the cooling transfer opening/closing unit 731 may be exemplified as a 4-way valve capable of controlling the flow direction of fluid for four flow paths. The operation of the cooling transfer opening/closing unit 731 may be controlled by a control unit 900, which will be described later.

The cooling recovery opening/closing unit 732 selectively opens and closes the cooling recovery unit 720. The cooling recovery opening/closing unit 732 may have the same configuration as the second heating recovery opening/closing unit 632, as the cooling recovery unit 720 and the second heating recovery unit 620 are illustrated to have the same configuration.

The sensing unit 800 detects the temperature of the battery module 10. The sensing unit 800 according to an embodiment of the present invention may be installed on the battery module 10 side and may be exemplified by various types of temperature sensors capable of detecting the temperature of the battery module 10.

The control unit 900 determines a thermal management mode based on the temperature change of the battery module 10 measured by the sensing unit 800, and operates the first heating unit 500 and the second heating unit 600 according to the determined thermal management mode. ) and controls the operation of the cooling unit 700. The control unit 900 according to an embodiment of the present invention is an electronic control unit ( It can be implemented as an Electronic Control Unit (ECU), Central Processing Unit (CPU), processor, or System on Chip (SoC), and runs an operating system or application to connect multiple hardware or software components. It can be controlled and various data processing and calculations can be performed. Additionally, the control unit 900 may be configured to execute at least one command stored in the memory and store execution result data in the memory.

Hereinafter, the operation process of the thermal management mode by the control unit according to an embodiment of the present invention will be described in detail.

Figure 5 is a flowchart schematically showing the operation process of the thermal management mode by the control unit according to an embodiment of the present invention.

Referring to FIG. 5, first, the sensing unit 800 detects the temperature of the battery module 10 (S100).

When the temperature of the battery module 10 detected by the sensing unit 800 is less than the first set temperature T1 (S200), the control unit 900 executes the first heating mode (S210). Here, the first set temperature (T1) may be exemplified as 25°C.

Figure 6 is a diagram schematically showing the operating state of the first heating mode according to an embodiment of the present invention.

Referring to FIG. 6, in the first heating mode, the control unit 900 operates the first heating unit 500 and stops the second heating unit 600 and cooling unit 700 from operating.

More specifically, the control unit 900 operates the first heat transfer switch 531 and the first heat recovery switch 532 to close both ends of the first heat transfer unit 510 and the first heat recovery unit 520. It is opened, and the first heat transfer unit 510 and the first heat recovery unit 520 are communicated with the first circulation unit 110 and the second circulation unit 210.

Meanwhile, a first circulation unit 110 connected between one end of the first heat transfer unit 510 and the first heat recovery unit 520, the first heat transfer unit 510 and the first heat recovery unit 520 The second circulation section 210 connected between the other ends is closed.

Thereafter, the high-temperature second heat exchange medium (B), which absorbs the heat of the exhaust gas (G) and is discharged from the exhaust heat recovery member 220, is transferred to the outlet side of the heat management member 120 through the first heat transfer unit 510. It is delivered to the connected first circulation unit 110. In this case, the second heat exchange medium (B) delivered to the first circulation unit 110 may have a temperature of about 50°C to 60°C.

The high temperature second heat exchange medium (B) delivered to the first circulation unit (110) is mixed with the first heat exchange medium (A), and the first circulation unit (110) undergoes heat exchange with the first heat exchange medium (A). The temperature of the first heat exchange medium (A) flowing through is increased. In this case, the temperature of the first heat exchange medium (A) placed in a low temperature environment of approximately -7°C may be increased to about 25°C to 30°C by heat exchange with the second heat exchange medium (B).

The first heat exchange medium (A) with an increased temperature flows into the interior of the heat management member 120 through the inlet side of the heat management passage 121, exchanges heat with the battery module 10, and increases the temperature of the battery module 10. I order it.

Meanwhile, the control unit 900 operates the second heat transfer switch 631 and the second heat recovery switch 632 in the first heating mode to operate the second heat transfer unit 610 and the second heat recovery unit 620. By closing both ends of the cooling transfer opening and closing unit 731 and the cooling recovery opening and closing unit 732 to close both ends of the cooling transfer unit 710 and the cooling recovery unit 720, the third heat exchange medium (C) is connected to the chiller unit. Block the inflow into (130). Accordingly, in the first heating mode, the temperature of the first heat exchange medium (A) can be determined only by the second heat exchange medium (B) delivered through the first heating unit 500.

On the other hand, when the second heating recovery unit 620, the cooling recovery unit 720, the second heating recovery opening/closing unit 632, and the cooling recovery opening/closing unit 732 have the same configuration, the second heating recovery unit 620 and The cooling recovery unit 720 can be closed simultaneously by a single operation of the second heating recovery opening/closing unit 632 or the cooling recovery opening/closing unit 732.

Thereafter, when the temperature of the battery module 10 detected by the sensing unit 800 is above the first set temperature (T1) and below the second set temperature (T2) (S300), the control unit 900 operates in the first buffering mode. Execute (S310). Here, the second set temperature (T2) may be exemplified as 26°C.

In the first buffer mode, the control unit 900 stops the operation of the first heating unit 500.

More specifically, the control unit 900 operates the first heat transfer opening and closing unit 531 and the first heat recovery opening and closing unit 532 to close the first heat transfer unit 510 and the first heat recovery unit 520. .

In this case, the second heating unit 600 and the cooling unit 700 are maintained in a state in which their operation is stopped by the control unit 900 as in the first heating mode.

That is, the first buffer mode functions as a mode that provides a constant interval in temperature for the heat management mode by the control unit 900 to be switched between the first heating mode and the second heating mode, which will be described later.

Accordingly, the control unit 900 operates the first heating unit 500 and the second heating unit 600 simultaneously in the process of switching between the first heating mode and the second heating mode, and the temperature of the battery module 10 is increased. It is possible to prevent changes in unintended directions, and the first heating unit 500 and the second heating unit 600 are repeatedly operated or stopped based on a single temperature, resulting in reduced durability of parts or unnecessary energy. This can prevent unnecessary consumption.

Thereafter, when the temperature of the battery module 10 detected by the sensing unit 800 is above the second set temperature (T2) but below the third set temperature (T3) (S400), the control unit 900 operates in the second heating mode. Execute (S410). Here, the third set temperature (T3) may be exemplified as 35°C.

Figure 7 is a diagram schematically showing the operating state of the second heating mode according to an embodiment of the present invention.

Referring to FIG. 7, in the second heating mode, the control unit 900 operates the second heating unit 600 and stops the operation of the first heating unit 500 and cooling unit 700.

More specifically, in the second heating mode, the control unit 900 operates the second heat transfer switch 631 and the second heat recovery switch 632 to operate the second heat transfer unit 610 and the second heat recovery unit ( Both ends of 620 are opened, and one end of the second heat transfer unit 610 and the second heat recovery unit 620 are communicated with the third circulation unit 310.

Meanwhile, as the second heat transfer unit 610 and the cooling transfer unit 710 are connected to each other, the control unit 900 operates the cooling transfer opening and closing unit 731 to cool the other end of the second heat transfer unit 610. One end of the transmission unit 710 is communicated.

Thereafter, the high-temperature third heat exchange medium (C) discharged from the compressor 320 sequentially passes through the second heat transfer unit 610 and the cooling transfer unit 710 and passes through the inlet of the second chiller passage 132. It is transmitted to the inside of unit 130. In this case, the temperature of the third heat exchange medium (C) delivered to the chiller unit 130 may be about 60°C to 70°C.

The high-temperature third heat exchange medium (C) delivered to the chiller unit 130 exchanges heat with the first heat exchange medium (A) flowing along the first chiller passage 131 inside the chiller unit 130 and performs the first heat exchange. Raise the temperature of medium (A). In this case, the temperature of the first heat exchange medium (A) may be increased to approximately 30°C to 35°C by heat exchange with the third heat exchange medium (C).

The first heat exchange medium (A), whose temperature is raised and discharged from the chiller unit 130, flows into the interior of the heat management member 120 through the inlet side of the heat management passage 121, exchanges heat with the battery module 10, and exchanges heat with the battery module 10. Raise the temperature of the module 10.

Meanwhile, the control unit 900 operates the first heat transfer switch 531 and the first heat recovery switch 532 in the second heating mode to operate the first heat transfer unit 510 and the first heat recovery unit 520. By closing both ends, the second heat exchange medium (B) is blocked from flowing into the first circulation unit (110).

At the same time, the control unit 900 operates the cooling transfer opening/closing unit 731 to block communication between the third circulation unit 310 connected between the evaporator 350 and the accumulator 360 and the cooling transfer unit 710. The low-temperature third heat exchange medium (C) discharged from the evaporator 350 is blocked from flowing into the chiller unit 130. Accordingly, in the second heating mode, the temperature of the first heat exchange medium (A) can be determined only by the high temperature third heat exchange medium (C) delivered through the second heating unit 600.

On the other hand, when the second heating recovery unit 620, the cooling recovery unit 720, the second heating recovery opening/closing unit 632, and the cooling recovery opening/closing unit 732 have the same configuration, the cooling recovery unit 720 is open. can be maintained.

Thereafter, when the temperature of the battery module 10 detected by the sensing unit 800 is above the third set temperature (T3) but below the fourth set temperature (T4) (S500), the control unit 900 operates in the second buffering mode. Execute (S510). Here, the fourth set temperature (T4) may be exemplified as 36°C.

In the second buffer mode, the control unit 900 stops the operation of the second heating unit 600.

More specifically, the control unit 900 operates the second heat transfer opening/closing unit 631 and the second heat recovery opening/closing unit 632 to close the second heat transfer unit 610 and the second heat recovery unit 620. .

At the same time, the control unit 900 operates the cooling transfer opening/closing unit 731 to block communication between the second heat transfer unit 610 and the cooling transfer unit 710.

In this case, the first heating unit 500 and the cooling unit 700 are maintained in a state in which their operation is stopped by the control unit 900 as in the second heating mode.

That is, the second buffer mode functions as a mode that provides a certain interval to the temperature for the heat management mode by the control unit 900 to be switched between the second heating mode and the cooling mode described later.

Accordingly, the control unit 900 operates the second heating unit 600 and the cooling unit 700 simultaneously in the process of switching between the second heating mode and the cooling mode, and the temperature of the battery module 10 moves in an unintended direction. It is possible to prevent the second heating unit 600 and the cooling unit 700 from repeatedly operating or stopping based on a single temperature, thereby preventing the durability of the parts from deteriorating or unnecessary consumption of energy. You can.

Thereafter, when the temperature of the battery module 10 detected by the sensing unit 800 is higher than the fourth set temperature T4 (S600), the control unit 900 executes the cooling mode (S610).

Figure 8 is a diagram schematically showing the operating state of the cooling mode according to an embodiment of the present invention.

Referring to FIG. 8, in the cooling mode, the control unit 900 operates the cooling unit 700 and stops the operation of the first heating unit 500 and the second heating unit 600.

More specifically, in the cooling mode, the control unit 900 operates the cooling transfer opening and closing unit 731 and the cooling recovery opening and closing unit 732 to connect the cooling transfer unit 710 and the cooling recovery unit 720 to the third circulation unit 310. communicate with

Meanwhile, as the second heat transfer unit 610 and the cooling transfer unit 710 are connected to each other, the control unit 900 operates the cooling transfer opening and closing unit 731 to cool the other end of the second heat transfer unit 610. One end of communication of the transmission unit 710 is blocked.

Thereafter, the low-temperature third heat exchange medium (C) discharged from the evaporator 350 sequentially passes through the third circulation unit 310 and the cooling transfer unit 710 and passes through the inlet of the second chiller passage 132 to the chiller unit. It is delivered to the interior of (130). In this case, the temperature of the third heat exchange medium (C) delivered to the chiller unit 130 may be about 7°C to 10°C.

The low-temperature third heat exchange medium (C) delivered to the chiller unit 130 exchanges heat with the first heat exchange medium (A) flowing along the first chiller passage 131 inside the chiller unit 130 and performs the first heat exchange. The temperature of medium (A) is lowered. In this case, the temperature of the first heat exchange medium (A) may be lowered to approximately 36° C. or lower due to heat exchange with the third heat exchange medium (C).

The first heat exchange medium (A), whose temperature is lowered and discharged from the chiller unit 130, flows into the interior of the heat management member 120 through the inlet side of the heat management passage 121, exchanges heat with the battery module 10, and exchanges heat with the battery module 10. The temperature of the module 10 is lowered.

Meanwhile, the control unit 900 operates the first heat transfer switch 531 and the first heat recovery switch 532 in the cooling mode to connect both ends of the first heat transfer unit 510 and the first heat recovery unit 520. By closing, the second heat exchange medium (B) is blocked from flowing into the first circulation unit (110).

At the same time, the control unit 900 operates the cooling transfer opening and closing unit 731 to block communication between the third circulation unit 310 and the second heating transfer unit 610 connected between the evaporator 350 and the accumulator 360. do. Accordingly, in the cooling mode, the temperature of the first heat exchange medium (A) can be determined only by the low temperature third heat exchange medium (C) delivered through the cooling unit 700.

In addition, the control unit 900 operates the cooling transfer opening/closing unit 731 to close the third circulation unit 310 connected between the cooling transfer opening/closing unit 731 and the cooling recovery opening/closing unit 732 to discharge discharge from the evaporator 350. It is possible to prevent the low temperature third heat exchange medium (C) from flowing into the chiller unit 130 and being directly transferred to the compressor 320.

On the other hand, when the second heating recovery unit 620 and the cooling recovery unit 720, the second heating recovery opening and closing unit 632 and the cooling recovery opening and closing unit 732 have the same configuration, the second heating recovery unit 620 It can remain open.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand.

Therefore, the scope of technical protection of the present invention should be determined by the scope of the patent claims below.

10: Battery module 20: Engine
100: heat management unit 110: first circulation unit
111: first circulation pump 120: heat management member
121: Heat management passage 130: Chiller unit
131: 1st chiller flow path 132: 2nd chiller flow path
200: exhaust heat recovery unit 210: second circulation unit
211: second circulation pump 220: exhaust heat recovery member
221: 1st exhaust flow path 222: 2nd exhaust flow path
300: cycle unit 310: third circulation unit
320: Compressor 330: Condenser
340: expansion valve 350: evaporator
360: Accumulator 370: Receiver dryer
400: Indoor heating unit 410: First heater core unit
411: First heating passage 420: Second heater core section
421: Second heating passage 430: Heating member
440: Blower unit 450: Indoor temperature sensing unit
460: Indoor heating control unit 500: First heating unit
510: first heat transfer unit 520: first heat recovery unit
530: first heating switch 531: first heating transfer switch
532: First heating recovery opening/closing unit 600: Second heating unit
610: second heat transfer unit 620: second heat recovery unit
630: second heating switch 631: second heat transfer switch
632: Second heating recovery opening/closing unit 700: Cooling unit
710: Cooling transmission unit 720: Cooling recovery unit
730: Cooling opening/closing unit 731: Cooling transfer opening/closing unit
732: Cooling recovery opening/closing unit 800: Detection unit
900: Control unit

Claims (11)

A heat management unit in which the first heat exchange medium circulates and exchanges heat with the battery module;
an exhaust heat recovery unit in which the second heat exchange medium circulates and recovers heat from the exhaust gas;
an indoor heating unit that receives the second heat exchange medium from the exhaust heat recovery unit and heats the room;
A first heating unit branched from the exhaust heat recovery unit and heat-exchanging the second heat exchange medium with the first heat exchange medium to increase the temperature of the battery module.
According to clause 1,
The thermal management unit is,
a first circulation section through which the first heat exchange medium circulates; and
A thermal management system for a hybrid vehicle battery, comprising: a thermal management member connected to the first circulation unit and heat-exchanging the first heat exchange medium with the battery module.
According to clause 2,
The exhaust heat recovery unit,
a second circulation section through which the second heat exchange medium circulates; and
A battery heat management system for a hybrid vehicle, comprising: an exhaust heat recovery member connected to the second circulation unit and heat-exchanging the second heat exchange medium with the exhaust gas.
According to clause 3,
The indoor heating unit,
a first heater core unit connected to the second circulation unit and heating the air through which the second heat exchange medium discharged from the exhaust heat recovery member flows;
A heating member that heats air by receiving power from the battery module; and
A battery thermal management system for a hybrid vehicle, comprising: a blower unit that supplies air heated by the first heater core unit and the heating member to the interior.
According to clause 4,
The indoor heating unit is,
A battery thermal management system for a hybrid vehicle further comprising a second heater core unit that heats the air through which a fourth heat exchange medium that exchanges heat with the engine flows.
According to clause 5,
An indoor temperature sensing unit that detects the indoor temperature of the vehicle; and
For a hybrid vehicle, further comprising: an interior heating control unit that determines a heating mode based on the interior temperature of the vehicle detected by the interior temperature detection unit, and controls the operation of the interior heating unit according to the determined heating mode. Battery thermal management system.
According to clause 6,
The indoor heating control unit is,
When the indoor temperature of the vehicle detected by the indoor temperature detection unit is below the first set indoor temperature, a heating promotion mode is executed to increase the fuel injection amount of the engine and operate the heating member,
When the indoor temperature of the vehicle detected by the indoor temperature detection unit is higher than the second set indoor temperature, a normal heating mode is executed to reduce the fuel injection amount of the engine and stop the operation of the heating member. Automotive battery thermal management system.
According to clause 3,
The first heating unit,
a first heat transfer unit connected to the first circulation unit and the second circulation unit and transferring the second heat exchange medium discharged from the exhaust heat recovery member to the first circulation unit;
a first heat recovery unit connected to the first circulation unit and the second circulation unit, and recovering the second heat exchange medium discharged from the heat management member to the second circulation unit; and
A battery thermal management system for a hybrid vehicle, comprising: a first heating opening and closing unit that selectively opens and closes the first heat transfer unit and the first heat recovery unit.
According to clause 1,
A sensing unit that detects the temperature of the battery module; and
A control unit that determines a thermal management mode based on the temperature change of the battery module measured by the sensing unit and controls the operation of the first heating unit according to the determined thermal management mode. A hybrid vehicle battery further comprising a. Thermal management system.
According to clause 9,
The control unit is configured to execute a first heating mode that operates the first heating unit when the temperature of the battery module detected by the sensing unit is below a first set temperature.
According to clause 10,
The control unit is characterized in that it executes a first buffering mode that stops the operation of the first heating unit when the temperature of the battery module detected by the sensing unit is greater than the first set temperature and less than the second set temperature. A battery thermal management system for hybrid vehicles.