Heating, ventilation and air conditioning system for a vehicle

Abstract

Heating, ventilation and air conditioning system for a vehicle, comprising: a first coolant line (10) which passes through a radiator (100) and of which a first end section is connected to a first valve (310) and a second end section is connected to a second valve (330), a second coolant line (30), of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a first coolant exchange line (50) which passes through a first heat exchanger (610) and of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a second coolant exchange line (70) which passes through a second heat exchanger (630) and of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), and a refrigerant line (90) comprising the first heat exchanger (610), the second heat exchanger (630) and a compressor (800) in which a refrigerant circulates, wherein the first heat exchanger (610) is a hot heat exchanger and the second heat exchanger (630) is a cold heat exchanger, characterized in that the second coolant line (30) passes through an interior air conditioning core (400) and a high-voltage battery core (500), The heating, ventilation and air conditioning system further comprises a control device (900) configured to control the first valve (310) and the second valve (330) to selectively connect the first coolant line (10) or the second coolant line (30) to the first coolant exchange line (50) or the second coolant exchange line (70), the first coolant line (10) further comprises an electrical component core (200), wherein the coolant, which has heat-exchanged through the radiator (100), cools the first heat exchanger (610) or the second heat exchanger, the electrical component core (200), and In a cooling mode, the control device (900) is set up not to operate the compressor (800), and the control device (900) controls the first valve (310) and the second valve (330) to connect the first coolant line (10) to the first coolant exchange line (50) and to connect the second coolant line (30) to the second coolant exchange line (70), so that the electrical component core (300) is cooled, an interior volume is air-conditioned, and the high-voltage battery core (500) is selectively cooled.

Description

Background of the invention; Field of the invention

[0001] The present invention relates to a heating, ventilation and air conditioning (HVAC) system for a vehicle (e.g. a motor vehicle) and in particular an HVAC system for a vehicle which is configured to extend / increase a driving distance by efficiently managing the energy required for interior air conditioning and cooling and heating of the battery. Description of related technology

[0002] More recently, electric vehicles have become a societal issue, particularly regarding the implementation of environmentally friendly technology and the solution to the problem of energy waste. An electric vehicle is powered by an electric motor, which draws electricity from a battery to deliver power. Therefore, electric vehicles have gained prominence due to their advantages: they emit no carbon dioxide, operate at very low noise levels, and have an electric motor that is more energy-efficient than a combustion engine.

[0003] A key technology for realizing such an electric vehicle is the battery module. Recently, research has been actively pursued in the areas of weight reduction, miniaturization, and short charging times for batteries. The battery module can be used in an optimal temperature environment to maintain optimal performance and ensure a long service life. However, operating a battery module in an optimal temperature environment is challenging due to heat generated during operation and fluctuations in the ambient temperature.

[0004] Furthermore, unlike an internal combustion engine, an electric vehicle does not have a waste heat source such as that produced by combustion in a separate combustion engine. Therefore, the electric vehicle uses an electric heating device for interior heating in winter, which can be warmed up. Consequently, it employs a separate electric coolant-type heating system to improve battery charging / discharging performance in cold weather. In other words, to maintain an optimal temperature environment for the battery module, an electric vehicle operates a separate cooling and heating system for controlling (e.g., regulating) the battery module temperature, distinct from the vehicle's climate control system.In other words, an electric vehicle uses two independent cooling and heating systems, the first of which is used for cooling and heating the interior, and the second of which is used to control the temperature of a battery module.

[0005] However, an electric vehicle operating according to the above method is unable to manage energy efficiently, resulting in a short driving range and therefore inability to travel long distances. The electric vehicle's driving range is reduced by 30% or more during cooling in the summer and by 40% or more during heating in the winter. Therefore, an electric vehicle has a significant interior heating problem in winter, which does not occur with an internal combustion engine. An electric vehicle using a high-capacity PCT (positive temperature coefficient) heater to address the interior heating problem in winter is problematic in that it has a reduced driving range, excessive production costs, and excessive weight due to the use of a heat pump.

[0006] From DE 601 02 185 T2, a heating, ventilation, and air conditioning system for a vehicle is known according to the preambles of claims 1, 2, and 3. From US 5,289,698 A, a heating, ventilation, and air conditioning system for a vehicle is known in which a coolant line passes through an interior air conditioning core, a high-voltage battery core, and an electrical component core. From DE 11 2015 000 552 T5, a heating, ventilation, and air conditioning system for a vehicle is known in which an interior air conditioning core is connected in parallel to a high-voltage battery core via a coolant line. From DE 10 2009 060 860 A1 it is known to provide a bypass line and a bypass valve arranged in parallel to the battery in a cooling circuit in order to control the cooling of the battery.

[0007] The information disclosed in this background-of-invention section is provided only to facilitate understanding of the general background of the invention and should not be construed as an admission or any form of suggestion that this information constitutes prior art already known to the person skilled in the art. Explanation of the invention

[0008] The object of the present invention is to solve the problems described above, and various aspects of the present invention are aimed at creating a heating, ventilation and air conditioning (HVAC) system for a vehicle that can avoid a reduction in driving range, even when the electric vehicle uses a high-capacity PTC heating device, and that can avoid excessive cost and excessive weight.

[0009] This problem is solved by a heating, ventilation and air conditioning system for a vehicle according to claim 1, 2 or 3. Advantageous embodiments are the subject of the dependent claims.

[0010] To achieve the above aspects, an HVAC system for a vehicle according to the present invention comprises a first coolant line passing through a radiator (e.g., a cooler) and of which a first end section is connected to a first valve and a second end section is connected to a second valve; a second coolant line of which a first end section is connected to the first valve and a second end section is connected to the second valve; a first coolant exchange line passing through a first heat exchanger and of which a first end section is connected to the first valve and a second end section is connected to the second valve; and a second coolant exchange line passing through a second heat exchanger and of which a first end section is connected to the first valve and a second end section is connected to the second valve.a refrigerant line with the first heat exchanger, the second heat exchanger and a compressor, in which the refrigerant circulates, and a control device configured to control the first valve and the second valve to selectively connect the first refrigerant line or the second refrigerant line to the first refrigerant exchange line or the second refrigerant exchange line.

[0011] According to the invention, the second coolant line either passes through an interior air conditioning core and a high-voltage battery core (e.g., high-voltage battery core) or the interior air conditioning core is connected in parallel to the high-voltage battery core on the second coolant line.

[0012] The first valve and the second valve are preferably, for example, four-way valves and can preferably be controlled to open and close by the control device.

[0013] In embodiments where the second coolant line passes through the interior air conditioning core and the high-voltage battery core, the interior air conditioning core can be located at a point upstream of the high-voltage battery core.

[0014] In embodiments where the second coolant line passes through the interior air conditioning core and the high-voltage battery core, the interior air conditioning core is preferably arranged, for example, at a point upstream of the high-voltage battery core. A bypass line is preferably arranged, for example, between the high-voltage battery core and the interior air conditioning core, allowing coolant to bypass the high-voltage battery core. The bypass line preferably includes, for example, a bypass valve, allowing coolant to be selectively supplied to the high-voltage battery core side.

[0015] The first coolant line preferably has, for example, a first pump, and the second coolant line preferably has a second pump, wherein the first pump and the second pump can preferably be driven or stopped under the control of the control device.

[0016] The compressor is preferably located, for example, upstream of the first heat exchanger.

[0017] The first heat exchanger is a hot heat exchanger, and the second heat exchanger is a cold heat exchanger.

[0018] The first coolant line further points to an electrical component core, and the coolant, which has exchanged heat through the radiator, the first heat exchanger, or the second heat exchanger, cools the electrical component core.

[0019] According to the invention, in some embodiments, in a cooling mode (e.g., with respect to a), the control device is set up to not operate the compressor, and the control device controls the first valve and the second valve to connect the first coolant line to the first coolant exchange line and to connect the second coolant line to the second coolant exchange line, whereby the electrical component core can be cooled, an interior volume can be air-conditioned, and the high-voltage battery core can be selectively cooled.

[0020] According to the invention, in further embodiments, in a (e.g. with respect to a) warm mode, the control device is set up to not operate the compressor, and the control device controls the first valve and the second valve to connect the first coolant line to the second coolant exchange line and to connect the second coolant line to the first coolant exchange line, whereby the electrical component core can be cooled, an interior volume can be heated and the high-voltage battery core can be selectively cooled.

[0021] According to an HVAC system for a vehicle, configured as described above, the system features an independently configured circuit for an integrated thermal management module (e.g., an integrated heating management module). Therefore, it is possible to retain the existing source technology, eliminate a water-heating PTC heater and an air-heating PTC heater, eliminate a heat pump system, improve driving range, and reduce costs and weight. Additionally, the integrated thermal management module has a single-unit module structure, and when the compact integrated thermal management module is housed within a radiator, the module has an advantageous design and enables a compact HVAC system.

[0022] The devices of the present invention have other features and advantages, which will become apparent in further detail from the accompanying drawings included herein and the following detailed description, which together serve to explain certain principles of the present invention. Brief description of the drawing Fig. Figure 1 illustrates an HVAC system for a vehicle according to an exemplary embodiment of the invention. Fig. 2 illustrates the system of Fig. 1 in a cold mode. Fig. 3 illustrates the system of Fig. 1 in a hot mode. Fig. 4 illustrates the system of Fig. 1 in a cooling mode. Fig. 5 illustrates the system of Fig. 1 in a warm mode. Fig. Figure 6 is a view showing an interior air conditioning core and a high-voltage battery core of the HVAC system. Fig. 1 are connected in parallel, and Fig. Figure 7 illustrates a vehicle design according to Fig. 1.

[0023] It should be understood that the attached drawings are not necessarily to scale and represent a somewhat simplified depiction of the various features that illustrate the basic principles of the invention. The specific design features of the present invention as disclosed herein, including specific dimensions, orientations, positions, and shapes, are partly determined by the intended application and the environment of use.

[0024] In the figures, identical reference symbols denote the same or essentially identical components across all figures. Detailed description

[0025] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. Although the invention is described in connection with exemplary embodiments, it should be understood that the present description is not intended to limit the invention to these exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, variations, and other embodiments that fall within the scope of the appended claims.

[0026] As in Fig. As shown in Figure 1, an HVAC system for a vehicle according to an exemplary embodiment of the invention can comprise a first coolant line 10 passing through a radiator 100 and having a first end section connected to a first valve 310 and a second end section connected to a second valve 330; a second coolant line 30 passing through a cabin air conditioning core 400 and a high-voltage battery core 500 and having a first end section connected to the first valve 310 and a second end section connected to the second valve 330; a first coolant exchange line 50 passing through a first heat exchanger 610 and having a first end section connected to the first valve 310 and a second end section connected to the second valve 330; and a second coolant exchange line 70.which passes through a second heat exchanger 630 and which has a first end section connected to the first valve 310 and a second end section connected to the second valve 330, a refrigerant line 90 which includes the first heat exchanger 610, the second heat exchanger 630 and a compressor 800 and in which the refrigerant circulates, and a control device 900 which is configured to control the first valve 310 and the second valve 330 in order to selectively connect the first refrigerant line 10 or the second refrigerant line 30 to the first refrigerant exchange line 50 or the second refrigerant exchange line 70.

[0027] The first coolant line 10 further includes an electrical component core 200. Therefore, the first coolant line 10 includes the electrical component core 200 and the radiator 100, and the electrical component core 200 may include an electrical power control unit (EPCU), an electric motor, an on-board charger (OBC), etc., which are configured to be cooled. Since the radiator 100 is required to cool the electrical component core 200, the radiator 100 may be located at a point upstream of the electrical component core 200. Additionally, the first coolant line 10 includes a first pump 710, and the control device 900 controls the first pump 710 to be driven or stopped. When the first pump 710 is driven, a coolant from the first coolant line 10 circulates. The electrical component core 200 can be connected in parallel to the first coolant line 10.In such a case, the flow resistance of the first coolant line 10 is reduced.

[0028] The second coolant line 30 points to the cabin air conditioning core 400 and the high-voltage battery core 500, and the cabin air conditioning core 400 is located upstream of the high-voltage battery core 500. However, as in Fig. As illustrated in Figure 6, the interior climate control core 400 and the high-voltage battery core 500 can be connected in parallel. Additionally, a bypass line 80 is arranged between the high-voltage battery core 500 and the interior climate control core 400, allowing coolant to bypass the high-voltage battery core 500. The bypass line 80 includes a bypass valve 350, which is configured to selectively supply coolant to the high-voltage battery core 500 side. The bypass valve 350 can be controlled by the control device 900, or it can be a valve that opens or closes automatically according to the coolant temperature without intervention from the control device 900. However, regardless of the type of valve used, all valves can be used, provided they have a flow rate control function to output the flow rate to the high-voltage battery core 500 side.The second coolant line 30 has a second pump 730, and the control device 900 is configured to control the second pump 730, either starting or stopping it. Therefore, when the second pump 730 is activated, the coolant in the second coolant line 30 circulates.

[0029] The first coolant exchange line 50 is configured with both end sections of the first heat exchanger 610 connected to the first valve 310 and the second valve 330, respectively. The second coolant exchange line 70 is configured with both end sections of the second heat exchanger 630 connected to the first valve 310 and the second valve 330, respectively. The first valve 310 and the second valve 330 are four-way valves and are controlled by the control device 900 to open or close, with the first coolant line 10 or the second coolant line 30 being selectively connectable to the first coolant exchange line 50 or the second coolant exchange line 70.

[0030] Refrigerant line 90 leads to the first heat exchanger 610, the second heat exchanger 630, and the compressor 800, and is configured to circulate a refrigerant. The first heat exchanger 610 is a hot heat exchanger, and the second heat exchanger 630 is a cold heat exchanger. Therefore, for refrigerant circulation and efficient heat transfer, the compressor 800 can be located upstream of the first heat exchanger 610, which is a hot heat exchanger.

[0031] The flow of refrigerant and coolant in each mode is described below with reference to the Fig. 2, Fig. 3, Fig. 4 and Fig. 5 described. In general, the HVAC system for a vehicle of the present invention can have four modes, with a cold mode for summer cooling, a hot mode for winter heating, a cooling mode for warm spring / autumn weather and a warm mode for cold spring / autumn weather.

[0032] First, a case of a cold mode in summer is described with reference to Fig. 2. In cold mode, the control device 900 operates the compressor 800 to circulate the refrigerant in the refrigerant line 90. The refrigerant passes through the compressor 800 to enter a gaseous state at a high temperature and pressure. As it passes through the first heat exchanger 610, the refrigerant heats the coolant and radiates (e.g., releases) heat. The temperature of the refrigerant decreases, causing it to liquefy. In its liquefied state, the refrigerant is temporarily stored in a receiver dryer 830. As it passes through the second heat exchanger 630, the refrigerant cools the coolant and absorbs heat. The refrigerant flow, as described above, is indicated by a dashed line in Fig. 2.

[0033] The control device 900 is configured to control the first valve 310 and the second valve 330 to connect the first coolant line 10 to the first coolant exchange line 50 and to connect the second coolant line 30 to the second coolant exchange line 70. That is, the first coolant line 10 and the first coolant exchange line 50 are connected by the first valve 310 and the second valve 330 to form a coolant flow path that includes the first pump 710, the first valve 310, the first heat exchanger 610, the second valve 330, the radiator 100, the electrical component core 200, and the first pump 710, through which the coolant circulates. Therefore, the coolant is heated in the first heat exchanger 610 after passing through the first valve 310, and supplied to the radiator 100 through the second valve 330.The coolant, cooled by the outside air in the radiator 100, cools the electrical component core 200 and then circulates again through the first pump 710 and the first valve 310. The flow of the coolant as described above is in . Fig. 2 is indicated by a dashed line.

[0034] Additionally, the second coolant line 30 and the second coolant exchange line 70 are connected by the first valve 310 and the second valve 330 to form a coolant flow path (or coolant circulation path) that includes the second pump 730, the second valve 330, the second heat exchanger 630, the first valve 310, the cabin air conditioning core 400, the high-voltage battery core 500, and the second pump 730, through which the coolant circulates. Accordingly, the coolant is cooled in the second heat exchanger 630 after passing through the second pump 730 and the second valve 330, and is then supplied to the cabin air conditioning core 400 via the first valve 310. Therefore, the cabin volume is cooled. In the present case, if the high-voltage battery core 500 needs to be cooled, the bypass valve 350 on the high-voltage battery core 500 side is opened to cool the high-voltage battery core 500.If the high-voltage battery core 500 does not require cooling, then the bypass valve 350 on the bypass line 80 side is opened, and the coolant is therefore diverted without passing through the high-voltage battery core 500. The coolant flow, as described above, is shown by a dotted line and a solid line in the diagram. Fig. 2 shown. In the drawing, the bypass valve 350 is partially open towards the high-voltage battery core 500, and the coolant flows to both the bypass line 80 side and the high-voltage battery core 500 side.

[0035] A case of a hot mode in winter is referred to in relation to the Fig. 3 described. In (or with regard to) the hot mode, the control device 900 is configured to operate the compressor 800 to circulate the refrigerant in the refrigerant line 90. The refrigerant passes through the compressor 800 to be in a gaseous state at a high temperature and high pressure. The refrigerant heats the coolant as it passes through the first heat exchanger 610 and radiates heat (e.g., releases heat), the temperature of the refrigerant decreases (as a result), and the refrigerant liquefies. In the liquefied state, the refrigerant is temporarily stored in the receiver dryer 830, and the refrigerant cools the coolant as it passes through the second heat exchanger 630 and absorbs heat (e.g., takes in heat). The flow of the refrigerant as described above is shown by a dashed line in Fig. 3 displayed.

[0036] The control device 900 is configured to control the first valve 310 and the second valve 330 to connect the first coolant line 10 and the second coolant exchange line 70 to each other, and to connect the second coolant line 30 to the first coolant exchange line 50. That is, the first coolant line 10 and the second coolant exchange line 70 are connected by the first valve 310 and the second valve 330 to form a coolant path that includes the first pump 710, the first valve 310, the second heat exchanger 630, the second valve 330, the radiator 100, the electrical component core 200, and the first pump 710, through which the coolant circulates. Therefore, the coolant is cooled in the second heat exchanger 630 after passing through the first valve 310 and is supplied to the radiator 100 through the second valve 330.The coolant, heated by outside air in radiator 100, cools the electrical component core 200 and then circulates again through the first pump 710 and the first valve 310. The flow of the coolant as described above is shown by a dashed line in . Fig. 3 displayed.

[0037] Additionally, the second coolant line 30 and the first coolant exchange line 50 are connected by the first valve 310 and the second valve 330 to form a coolant path that includes the second pump 730, the second valve 330, the first heat exchanger 610, the first valve 310, the interior climate control core 400, the high-voltage battery core 500, and the second pump 730, through which the coolant circulates. Accordingly, the coolant is cooled in the first heat exchanger 610 after passing through the second pump 730 and the second valve 330 and is then supplied to the interior climate control core 400 via the first valve 310. Therefore, the interior volume is heated. If the high-voltage battery core 500 needs to be heated, then the bypass valve 350 on the high-voltage battery core 500 side is opened to heat the high-voltage battery core 500.If the high-voltage battery core 500 does not need to be heated, then the bypass valve 350 on the bypass line 80 side is opened, and the coolant is therefore diverted without passing through the high-voltage battery core 500. The coolant flow as described above is indicated by a solid line in [diagram / figure number]. Fig. 3. In the drawing, the bypass valve 350 is partially open towards the high-voltage battery core 500 and the coolant flows to both the bypass line 80 side and the high-voltage battery core 500 side.

[0038] Thirdly, a case of a cooling mode for spring / autumn is described with reference to Fig. 4. In cooling mode (e.g., with regard to the), the control device 900 is configured not to operate the compressor 800. The control device 900 controls the first valve 310 and the second valve 330 to connect the first coolant line 10 to the first coolant exchange line 50 and to connect the second coolant line 30 to the second coolant exchange line 70. That is, the first coolant line 10 and the second coolant exchange line 50 are connected by the first valve 310 and the second valve 330 to form a coolant flow path that includes the first pump 710, the first valve 310, the first heat exchanger 610, the second valve 330, the radiator 100, the electrical component core 200, and the first pump 710, through which the coolant circulates.Therefore, the coolant in the first heat exchanger 610 is heated after passing through the first valve 310 and is supplied to the radiator 100 via the second valve 330. Cooled by the outside air of the radiator 100, the coolant cools the electrical component core 200 and then circulates again through the first pump 710 and the first valve 310. The flow of the coolant as described above is indicated by a solid line in the figure. Fig. 4.

[0039] Additionally, the second coolant line 30 and the second coolant exchange line 70 are connected by the first valve 310 and the second valve 330 to form a coolant flow path (e.g., coolant flow path) that includes the second pump 730, the second valve 330, the second heat exchanger 630, the first valve 310, the interior climate control core 400, the high-voltage battery core 500, and the second pump 730, through which the coolant circulates. However, in cooling mode, the second pump 730 is not driven when the interior temperature is adjusted to the outside temperature. This means that the second pump 730 is only operated when the interior temperature rises during interior air conditioning, and the coolant flows through the second valve 330 and the second heat exchanger 630 and is supplied to the interior air conditioning core 400 through the first valve 310. At this time, since the coolant absorbs a small amount of heat (e.g.,(receives) while passing through the first valve 310, the second valve 330, and the high-voltage battery core 500, and flowing into the interior climate control core 400, the interior volume is in a mixed mode. In this case, if the high-voltage battery core 500 needs to be cooled, then the bypass valve 350 on the high-voltage battery core 500 side is opened to cool the high-voltage battery core 500. If the high-voltage battery core 500 does not need to be cooled, then the bypass valve 350 on the bypass line 80 side is opened, and the coolant is thereby diverted without passing through the high-voltage battery core 500. The flow of the coolant as described above is shown by a dotted line in . Fig. 4 is shown. In the drawing, the bypass valve 350 is partially open towards the high-voltage battery core 500 and the coolant flows to both the bypass line 80 side and the high-voltage battery core 500 side.

[0040] Finally, a case of a warm mode for spring / autumn is described with reference to Fig. 5. In warm mode, the control device 900 is configured not to operate the compressor 800. The control device 900 controls the first valve 310 and the second valve 330 to connect the first coolant line 10 to the second coolant exchange line 70 and to connect the second coolant line 30 to the first coolant exchange line 50. That is, the first coolant line 10 and the second coolant exchange line 70 are connected by the first valve 310 and the second valve 330 to form a coolant flow path that includes the first pump 710, the first valve 310, the second heat exchanger 630, the second valve 330, the radiator 100, the electrical component core 200, and the first pump 710, through which the coolant circulates. However, in warm mode, the first pump 710 is only driven if the electrical component core 200 does not need to be cooled.When the first pump 710 is driven, the coolant is cooled in the second heat exchanger 630 after passing through the first valve 310 and is supplied to the radiator 100 through the second valve 330. The coolant, cooled by the outside air in the radiator 100, cools the electrical component core 200 and then circulates again through the first pump 710 and the first valve 310. The flow of the coolant as described above is shown by a dotted line in . Fig. 5.

[0041] Additionally, the second coolant line 30 and the first coolant exchange line 50 are connected by the first valve 310 and the second valve 330 to form a coolant flow path that includes (e.g., comprises) the second pump 730, the second valve 330, the first heat exchanger 610, the first valve 310, the interior climate control core 400, the high-voltage battery core 500, and the second pump 730, through which the coolant circulates. At this time, the interior volume is in heating mode.In this case, if the high-voltage battery core 500 needs to be cooled, the bypass valve 350 on the high-voltage battery core 500 side is opened to cool the high-voltage battery core 500. If the high-voltage battery core 500 does not need to be cooled, then the bypass valve 350 on the bypass line 80 side is partially opened, relatively less than when the high-voltage battery core 500 needs to be cooled. The coolant then flows through the high-voltage battery core 500 and absorbs its exothermic energy. This exothermic energy is then used to heat the interior air conditioning core 400. The coolant flow, as described above, is in [location missing]. Fig. 5 is indicated by a solid line.

[0042] The HVAC system for a vehicle according to an exemplary embodiment of the present invention, as described above, features an independently configured circuit for an integrated thermal management module 1. Therefore, it is possible to retain a single source technology, eliminate a water-heating PTC heater and an air-heating PTC heater, and eliminate a heat pump system, thereby improving driving range and reducing costs and weight. Additionally, the integrated thermal management module 1 has an integrated, single-unit module structure, and when the compact integrated thermal management module 1 is arranged within the radiator 100, the module has an advantageous layout and can achieve a compact HVAC system.

[0043] To facilitate explanation and accurate definition in the attached claims, the terms "upper", "lower", "up", "down", "upwards", "downwards", "inside", "outside", "inner", "outside", "inwards", "outwards", "inside", "outside", "front", "backwards", "backwards", "forwards", "backwards" are used to describe features of the exemplary embodiments with reference to the positions of such features as shown in the figures.

[0044] The preceding descriptions of specific exemplary embodiments have been made for illustrative and descriptive purposes. They are not intended to be exhaustive or to limit the invention, as defined by the following claims, to exactly these disclosed forms, and it is evident that many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen to explain certain principles of the invention and their practical application, and to enable the person skilled in the art to carry out the invention.

Claims

[1] Heating, ventilation and air conditioning system for a vehicle, comprising: a first coolant line (10) which passes through a radiator (100) and of which a first end section is connected to a first valve (310) and a second end section is connected to a second valve (330), a second coolant line (30), of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a first coolant exchange line (50) which passes through a first heat exchanger (610) and of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a second coolant exchange line (70) which passes through a second heat exchanger (630) and of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), and a refrigerant line (90) comprising the first heat exchanger (610), the second heat exchanger (630) and a compressor (800) in which a refrigerant circulates, wherein the first heat exchanger (610) is a hot heat exchanger and the second heat exchanger (630) is a cold heat exchanger, characterized by , that the second coolant line (30) passes through an interior air conditioning core (400) and a high-voltage battery core (500), The heating, ventilation and air conditioning system further comprises a control device (900) configured to control the first valve (310) and the second valve (330) to selectively connect the first coolant line (10) or the second coolant line (30) to the first coolant exchange line (50) or the second coolant exchange line (70), the first coolant line (10) further comprises an electrical component core (200), wherein the coolant, which has heat-exchanged through the radiator (100), cools the first heat exchanger (610) or the second heat exchanger, the electrical component core (200), and In a cooling mode, the control device (900) is set up not to operate the compressor (800), and the control device (900) controls the first valve (310) and the second valve (330) to connect the first coolant line (10) to the first coolant exchange line (50) and to connect the second coolant line (30) to the second coolant exchange line (70), so that the electrical component core (300) is cooled, an interior volume is air-conditioned, and the high-voltage battery core (500) is selectively cooled. [2] Heating, ventilation and air conditioning system for a vehicle, comprising: a first coolant line (10) passing through a radiator (100) and of which a first end section is connected to a first valve (310) and a second end section is connected to a second valve (330), a second coolant line (30) of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a first coolant exchange line (50) which passes through a first heat exchanger (610) and of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a second coolant exchange line (70) which passes through a second heat exchanger (630) and of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), and a refrigerant line (90) comprising the first heat exchanger (610), the second heat exchanger (630) and a compressor (800) in which a refrigerant circulates, wherein the first heat exchanger (610) is a hot heat exchanger and the second heat exchanger (630) is a cold heat exchanger, characterized by , that an interior air conditioning core (400) is connected in parallel to a high-voltage battery core (500) on the second coolant line (30), The heating, ventilation and air conditioning system further comprises a control device (900) configured to control the first valve (310) and the second valve (330) to selectively connect the first coolant line (10) or the second coolant line (30) to the first coolant exchange line (50) or the second coolant exchange line (70), the first coolant line (10) further comprises an electrical component core (200), wherein the coolant, which has heat-exchanged through the radiator (100), cools the first heat exchanger (610) or the second heat exchanger, the electrical component core (200), and In a cooling mode, the control device (900) is set up not to operate the compressor (800), and the control device (900) controls the first valve (310) and the second valve (330) to connect the first coolant line (10) to the first coolant exchange line (50) and to connect the second coolant line (30) to the second coolant exchange line (70), so that the electrical component core (300) is cooled, an interior volume is air-conditioned, and the high-voltage battery core (500) is selectively cooled. [3] Heating, ventilation and air conditioning system for a vehicle, comprising: a first coolant line (10) which passes through a radiator (100) and of which a first end section is connected to a first valve (310) and a second end section is connected to a second valve (330), a second coolant line (30), of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a first coolant exchange line (50) which passes through a first heat exchanger (610) and of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a second coolant exchange line (70) which passes through a second heat exchanger (630) and of which a first end section is connected to the first valve (310) and a second end section is connected to the second valve (330), a refrigerant line (90) comprising the first heat exchanger (610), the second heat exchanger (630) and a compressor (800) in which a refrigerant circulates, wherein the first heat exchanger (610) is a hot heat exchanger and the second heat exchanger (630) is a cold heat exchanger, characterized by , that the second coolant line (30) passes through an interior air conditioning core (400) and a high-voltage battery core (500), The heating, ventilation and air conditioning system further comprises a control device (900) configured to control the first valve (310) and the second valve (330) to selectively connect the first coolant line (10) or the second coolant line (30) to the first coolant exchange line (50) or the second coolant exchange line (70), the first coolant line (10) further comprises an electrical component core (200), wherein the coolant, which has heat-exchanged through the radiator (100), cools the first heat exchanger (610) or the second heat exchanger, the electrical component core (200), and In a warm mode, the control device (900) is set up not to operate the compressor (800), and the control device (900) controls the first valve (310) and the second valve (330) to connect the first coolant line (10) to the second coolant exchange line (70) and to connect the second coolant line (30) to the first coolant exchange line (50), so that the electrical component core (200) is cooled, an interior volume is heated, and the high-voltage battery core is selectively cooled. [4] System according to any one of claims 1 to 3, wherein the first valve (310) and the second valve (330) are four-way valves and are controlled by the control device to be open or closed. [5] System according to claim 1 or 3 or according to claim 4 in its reference to claim 1 or 3, wherein the interior air conditioning core (400) is arranged at a location upstream of the high-voltage battery core (500). [6] System according to claim 1 or 3 or according to claim 4 in its reference to claim 1 or 3, wherein the interior air conditioning core (400) is arranged at a location upstream of the high-voltage battery core (500), a bypass line (80) is arranged between the high-voltage battery core (500) and the interior air conditioning core (400), wherein coolant can bypass the high-voltage battery core (500), and the bypass line (80) has a bypass valve (350) wherein the coolant is selectively supplied to the high-voltage battery core (500) side. [7] System according to any one of claims 1 to 6, wherein the first coolant line (10) has a first pump (710) and the second coolant line (30) has a second pump (730), wherein the first pump (710) and the second pump (730) are driven or stopped under the control of the control device (900). [8] System according to any one of claims 1 to 7, wherein the compressor (800) is arranged at a location upstream of the first heat exchanger (610) and the first heat exchanger (610) is a hot heat exchanger.

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