HEATING SYSTEM OF A VEHICLE

Abstract

Heating system of a vehicle, comprising: an interior heat line (10) arranged to pass through a coolant heater (12) and through a radiator (14) for interior air conditioning, and provided with a first pump (16) so that coolant flows therein, and a battery heat line (20) branching off from a downstream point of the radiator (14) and connecting to an upstream point of the coolant heater (12) after passing through a battery heat exchanger (22) for raising the temperature of a high-voltage battery, wherein the battery heat line (20) further comprises: a first heat exchanger flow channel (24) connecting a downstream point of the radiator (14) to a first side of the battery heat exchanger (22), and a second heat exchanger flow channel (26) which a second side of the battery heat exchanger (22) and a current upstream point of the coolant heater (12),wherein the first heat exchange flow channel (24) and the second heat exchange flow channel (26) are each configured to exchange heat with each other; wherein the interior heat exchanger (10) further comprises: a first branch flow channel (30) connecting the point where the first heat exchanger flow channel (24) is connected and the point where the second heat exchanger flow channel (26) is connected, without passing through the battery heat exchanger section (22), and a first valve (32) provided on the first branch flow channel (30) or the battery heat exchanger (20) for controlling the coolant flow, wherein: sections in the first heat exchanger flow channel (24) and the second heat exchanger flow channel (26) are thermally connected to each other to form a heat exchanger section for heat exchange, a third branch flow channel (50),which is connected in parallel to the first heat exchange flow channel (24) or the second heat exchange flow channel (26), is provided at the first heat exchange flow channel (24) or the second heat exchange flow channel (26) to bypass the heat exchange section, characterized in that: the first valve (32) is a 4-way valve installed at a branch point where the first heat exchange flow channel (24) and respective end sections of the third bypass flow channel (50) and the first bypass flow channel (30) branch off to adjust the coolant flow.

Description

BACKGROUND OF THE INVENTIONField of the invention

[0001] The present invention relates to a heating system (e.g., a heating system) of a vehicle (e.g., a motor vehicle), and more particularly to the heating system (e.g., a heating system) capable of efficiently managing (e.g., efficiently controlling) energy required for interior air conditioning and heating / cooling a battery, to prevent damage (e.g., damage to) the battery, and to reduce the load on a heating element (e.g., a heater). Description of related technology

[0002] In recent years, electric vehicles have been developed to address issues such as the implementation of environmentally friendly technologies and energy consumption. An electric vehicle uses a motor that receives electrical energy from a battery and outputs kinetic energy. Therefore, electric vehicles have been and remain very popular as an environmentally friendly vehicle (e.g., motor vehicle) because they emit no carbon dioxide, generate minimal noise, and have a highly energy-efficient engine (each) compared to a conventional internal combustion engine.

[0003] A battery module is an important technology for electric vehicles, and recently, active research has been conducted to develop a lightweight, downsized battery with other useful features such as short charging time / duration, etc. The battery module should be used under optimal temperature conditions to maintain optimal performance and a long service life. However, it is difficult to use the battery module under optimal temperature conditions due to the heat generated during driving and external temperature changes.

[0004] Furthermore, since the electric vehicle does not have a waste heat source generated or burned in a separate combustion engine such as an internal combustion engine, the electric vehicle performs interior warming (e.g., warming / heating the interior thereof) in winter using an electric heater. Additionally, since the electric vehicle requires warming to improve battery charging and discharging performance during cold weather, the electric vehicle uses an electric heater of a separate coolant heating system type. That is, to maintain an optimal temperature environment of a battery module, the electric vehicle employs the technology of separately operating a cooling and heating system for controlling the battery module temperature, different from a cooling and heating system for conditioning the interior air of the electric vehicle.In other words, an electric vehicle includes two independent cooling and heating systems, using one for interior cooling and interior heating and the other for battery module temperature control.

[0005] However, when operating as described above, energy cannot be managed efficiently, making it impossible to travel long distances due to the potential for short driving distances. The driving distance of an electric vehicle can be reduced by more than 30% for cooling in summer and more than 40% for heating in winter, exacerbating the winter heating problem, which is not a problem for an internal combustion engine. If a high-capacity positive temperature coefficient (high-capacity PTC) heater is installed to solve the winter heating problem, the driving distance is reduced, and the cost and weight associated with using a heat pump become excessive.

[0006] As a result, the cooling and heating system for indoor air conditioning and the battery cooling and heating system are provided to share a coolant with each other, and therefore, technologies for improving heating efficiency and battery temperature-raising efficiency have attracted attention. However, since the main operating temperature (80°C or higher) of the heater and the temperature-raising temperature (50°C) of the battery are different from each other, there is a problem that high-temperature coolant will flow into the battery, causing damage to the battery if sophisticated cooperative control of the heating logic and the battery temperature-raising logic is not implemented.

[0007] The foregoing is merely intended to assist in understanding the background of the present invention and is not intended to imply that the present invention falls within the scope of the related art already known to those skilled in the art. EXPLANATION OF THE INVENTION

[0008] Accordingly, the present invention provides a heating system (e.g., a heating system) of a vehicle (e.g., a motor vehicle) that efficiently manages (e.g., controls) the energy required for interior air conditioning and battery cooling and battery heating, thereby preventing battery damage and reducing the load on a heating element (e.g., a heater).

[0009] To achieve the above object, the heating system of the vehicle according to the present invention may comprise: an interior heat pipe arranged to be passed through a coolant heater and a radiator for interior air conditioning, and provided with a first pump so that coolant flows therein, and a battery heat pipe branching from a downstream point of the radiator and connected to an upstream point of the coolant heater after being passed through a battery heat exchange part for temperature increasing of a high-voltage battery (e.g.run), wherein the battery heat line further comprises: a first heat exchange flow channel connecting a downstream point of the heater core to a first side of the battery heat exchange part, and a second heat exchange flow channel connecting a second side of the battery heat exchange part to an upstream point of the coolant heater, wherein the first heat exchange flow channel and the second heat exchange flow channel are each configured to mutually (e.g., reciprocally) exchange heat (e.g., with each other).

[0010] The interior heat pipe may include: a first bypass flow channel (e.g., a first detour flow channel) connecting the point where the first heat exchange flow channel is connected and the point where the second heat exchange flow channel is connected without passing through the battery heat exchange part; and a first valve provided on the first bypass flow channel or the battery heat pipe for controlling the coolant flow.

[0011] The first valve may be installed at a branching point where the first heat exchange flow channel and one end portion of the first bypass flow channel branch off (e.g., from each other) or where the second heat exchange flow channel and another end portion of the first bypass flow channel branch off (e.g., from each other).

[0012] The first valve may be installed on the first heat exchange flow channel or the second heat exchange flow channel.

[0013] A battery cooling line may be provided to connect the first side and the second side of the battery heat exchange part, and may be equipped with a second pump so that the coolant can be circulated, and wherein the first valve may be installed at a branch point where the first heat exchange flow channel and the battery cooling line branch off (e.g., from each other) or where the second heat exchange flow channel and the battery cooling line branch off (e.g., from each other).

[0014] A control device for controlling the opening of the first valve (e.g., for controlling the opening and closing of the first valve) may be further included, and in the case of an interior and battery warming mode, the control device controls the first valve so that the coolant can circulate through the interior heat pipe, the first heat exchange flow channel, the battery heat exchange part, and the second heat exchange flow channel.

[0015] A control device for controlling the opening of the first valve (e.g., for controlling the opening and closing of the first valve) may be further included, and in the case of an interior heating mode, the control device controls the first valve so that the coolant can circulate through the interior heating line and the first mist line flow channel.

[0016] Some sections in the first heat exchange flow channel and the second heat exchange flow channel may be thermally connected to each other to form a heat exchange section for heat exchange, and may further include: a second bypass flow channel (e.g., a second detour flow channel) connecting the heat exchange section of the first heat exchange flow channel and the heat exchange section of the second heat exchange flow channel without passing through the battery heat exchange part, and a second valve installed on the second bypass flow channel to adjust the coolant flow.

[0017] A control device for controlling the opening of the second valve (e.g., for controlling the opening and closing of the second valve) may be further included, and in the case of an interior and battery warming mode, the control device controls the second valve so that the coolant can circulate through the interior heat pipe, the first heat exchange flow channel, the battery heat exchange part, and the second heat exchange flow channel.

[0018] A control device for controlling the opening of the second valve (e.g., for controlling the opening and closing of the second valve) may be further included, and in the case of an indoor heating mode, the control device controls the second valve so that the coolant can circulate through the indoor heating pipe, the first heat exchange flow channel, the second bypass flow channel, and the second heat exchange flow channel.

[0019] Some sections in the first heat exchange flow channel and the second heat exchange flow channel may be thermally connected to each other to form (e.g., respectively associated) a heat exchange section for heat exchange, and a third bypass flow channel (e.g., a third detour flow channel) connected in parallel with the first heat exchange flow channel or the second heat exchange flow channel may be provided at the first heat exchange flow channel or the second heat exchange flow channel to bypass (e.g., bypass, e.g., pass by) the heat exchange section.

[0020] A third valve for adjusting the coolant flow may be provided at the third bypass flow channel or the (eg first or eg second) heat exchange flow channel at (eg on) which the third bypass flow channel is installed.

[0021] The third valve may be operated such that the coolant flows through the (eg first or eg second) heat exchange flow channel when the coolant temperature is equal to or lower than a (eg the) (eg set temperature), and such that the coolant flows through the third bypass flow channel when the coolant temperature is higher than the set temperature.

[0022] The first valve may be a 4-way valve installed at a branch point where the first heat exchange flow channel and respective end portions of the third bypass flow channel and the first bypass flow channel branch off to adjust the refrigerant flow.

[0023] A control device for controlling the opening of the first valve (e.g., for controlling the opening and closing of the first valve) may be further included, and in the case of an interior and battery warming mode and when the coolant temperature is higher than a (e.g., set) temperature, the control device controls the first valve so that the coolant can circulate through the interior heat pipe, the first heat exchange flow channel, the battery heat exchange part, and the second heat exchange flow channel.

[0024] A control device for controlling the opening of the first valve (e.g., for controlling the opening and closing of the first valve) may be further included, and in the case of an interior and battery warming mode and when the coolant temperature is equal to or lower than a (e.g., set) temperature, the control device controls the first valve so that the coolant can circulate through the interior warming line, the third bypass flow channel, the battery heat exchange part, and the second heat exchange flow channel.

[0025] A control device for controlling the opening of the first valve (e.g., for controlling the opening and closing of the first valve) may be further included, and in the case of an interior heating mode, the control device controls the first valve so that the coolant can circulate through the interior heating line and the first mist line flow channel.

[0026] According to the heating system of the vehicle configured according to the above-described structure, the coolant of the interior heat conduction, which is temperature-elevated by means of the heater (eg, the coolant heater), is arranged (eg, arranged) to be guided (eg, to pass) through the battery, thereby the battery is quickly temperature-elevated (eg, thereby the temperature of the battery is quickly increased).

[0027] In particular, by exchanging heat between the coolant flowing into the battery and the coolant flowing out of the battery by means of the heat exchanger, it is possible to prevent the overheated coolant (e.g., the coolant with an excessive temperature) from flowing into the battery to prevent damage (e.g., damage to) the battery, and the medium-warm coolant (e.g., the coolant with a medium temperature) can be supplied to the heater to reduce the operation load of the coolant heater. Character list

[0028] The above and other objects, features and other advantages of the present invention will be better understood from the following detailed description when taken in conjunction with the accompanying drawings. Fig. 1 and Fig. 2 are drawings each showing the operation of a heating system (e.g., a heating system) of a vehicle (e.g., a motor vehicle) according to a first exemplary embodiment of the present invention. Fig. 3 to Fig. 7 are drawings each differently showing application positions of the first valve of the heating system of the vehicle according to the first exemplary embodiment of the present invention. Fig. 8 is a drawing showing a heating system (e.g., a heating system) of a vehicle (e.g., an automobile) according to a second exemplary embodiment of the present invention. Fig. 9 and Fig. 10 are drawings each showing a heating system (e.g., a heating system) of a vehicle (e.g., an automobile) according to a third exemplary embodiment of the present invention. Fig. 11 is a drawing showing a heating system (e.g., a heating system) of a vehicle (e.g., an automobile) according to a fourth exemplary embodiment of the present invention. Fig. 12 is a graph showing changes in a coolant temperature according to a heating system (e.g., a heating system) of a vehicle (e.g., an automobile) of the present invention. DETAILED DESCRIPTION

[0029] It is to be understood that the terms "vehicle" or "vehicle-..." or other similar term used herein includes motor vehicles in general, such as passenger vehicles, including sport utility vehicles (SUVs), buses, trucks, numerous commercial vehicles, and e.g., watercraft, including a variety of boats and ships, as well as e.g., aircraft and the like, and further includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels produced from resources other than petroleum). A hybrid vehicle, as referred to herein, is a vehicle that has two or more power sources, e.g., vehicles that run on both gasoline and electricity.

[0030] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms "a," "an," and "the," as used herein, are intended to include the plural forms, unless the context clearly indicates otherwise. Further, it is to be understood that the terms "comprising" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, acts, elements, and / or components, but do not preclude the presence or addition of one or more additional features, integers, steps, acts, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated enumerated items.Throughout the description, unless otherwise stated, the word "comprise" and variations thereof, such as "comprises" or "having," shall be understood to imply the inclusion of the recited elements but not the exclusion of any other elements. Additionally, the terms "unit," "unit," "units," "units," and "modules" described in the description mean units for performing and / or processing at least one function and / or operation, and may be implemented using hardware components or software components and / or combinations thereof.

[0031] Furthermore, the control device (e.g., the control logic) of the present disclosure may be embodied as non-transitory, computer-readable means / data on a computer-readable medium, comprising executable program instructions executed by a processor, the control device, and the like. Examples of the computer-readable media include, but are not limited to, ROMs, RAMs, compact discs (CD-ROMs), magnetic tapes, floppy disks, storage drives, smart cards, and optical storage devices. The computer-readable recording medium may also be distributed in network-coupled computer systems such that the computer-readable means / data are stored and executed in a distributed manner, e.g., through a telematics server or a CAN bus.

[0032] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Like reference numerals designate like elements throughout the drawings.

[0033] Fig. 1 and Fig. 2 are drawings each showing the operation of a heating system (e.g., a heating system) of a vehicle (e.g., a motor vehicle) according to a first exemplary embodiment of the present invention, and Fig. 3 to Fig. 7 are drawings each differently showing application positions of the first valve of the heating system of the vehicle according to the first exemplary embodiment of the present invention.

[0034] Referring to the Fig. 1 and Fig. 2, the heating system of the vehicle according to the first exemplary embodiment of the present invention may include: an interior heat pipe 10which is arranged to be heated by a coolant heater 12 and through a radiator 14 for indoor air treatment (e.g. to run), and with a first pump 16 provided so that coolant flows therein, and a battery heat line 20 , which from a downstream point of the radiator 14 (out) and connected to an upstream point of the coolant heater 12 after being heated by a battery heat exchanger 22 to increase the temperature of a high-voltage battery (e.g., run). The battery heat conduction 20 may comprise: a first heat exchange flow channel 24 , which is the downstream point of the radiator 14 with a first side of the battery heat exchanger part 22 and a second heat exchange flow channel 26 , which forms a second side of the battery heat exchanger22 with the upstream point of the coolant heater 12 connects, and the first heat exchange flow channel 24 and the second heat exchange flow channel 26 can each be configured to exchange heat (e.g. with each other).

[0035] Since an electric vehicle cannot perform interior heating by using combustion engine waste heat, a separate temperature-increasing device is required.

[0036] The interior heat conduction 10 of the present invention may be configured to be heated by the coolant heater 12 and the radiator 14 to be guided (e.g., to run) for interior air conditioning so that the coolant is temperature-increased (e.g., so that the temperature of the coolant is increased) while passing (e.g., being guided through, e.g., flowing) through the coolant heater12 , and the temperature-increased coolant is fed to the radiator 14 supplied, thereby delivering the heated air to the vehicle interior.

[0037] Furthermore, an electric vehicle requires a system for increasing the temperature or cooling of a high-voltage battery, since optimal efficiency can only be achieved by maintaining the high-voltage battery at a suitable temperature.

[0038] In particular, the battery heat conduction 20 which temperature-elevates the high-voltage battery (e.g., increases the temperature of the high-voltage battery) by receiving and supplying a high-temperature coolant supplied from the heater core 14 is / is output to the (e.g. from the radiator 14 flows to the battery heat exchanger part 22 , be arranged according to the present invention.

[0039] This means that the interior heat conduction 10and the battery heat conduction 20 are connected to each other, the coolant, which is heated by means of the coolant heater 12 , through the radiator 14 and the battery heat exchanger part 22 through to achieve warming (e.g. heating) and battery temperature increase, thereby an (e.g. interior) warming (e.g. heating) and battery temperature increase system is easily implemented.

[0040] However, if the coolant supplied by the radiator 14 is / is output is excessively high (e.g. excessively hot), it may be necessary to cool the coolant appropriately to the battery heat exchanger part 22 to be delivered, since the high voltage battery may fail (e.g., break down) if the (e.g., excessively hot) coolant flows into the high voltage battery.

[0041] In the present invention, the first heat exchange flow channel 24, which is the downstream point of the radiator 14 with the first side of the battery heat exchanger part 22 connects, and the second heat exchange flow channel 26 , which is the second side of the battery heat exchanger 22 with the upstream point of the coolant heater 12 connects, arranged to the battery heat conduction 20 to configure, and the first heat exchange flow channel 24 and the second heat exchange flow channel 26 are each configured to exchange heat (e.g. with each other).

[0042] Therefore, the coolant which is cooled while passing (e.g. being passed through, e.g. flowing) through the battery heat exchange part 22 , the coolant passing through the downstream point of the radiator 14happens (e.g. is guided, e.g. flows) to prevent the high-temperature coolant from being delivered to the high-voltage battery, thereby preventing battery damage.

[0043] Here, the first heat exchange flow channel 24 and the second heat exchange flow channel 26 be configured (e.g., arranged) to exchange heat with each other by means of a separate heat exchanger, and / or are simply installed adjacent (e.g., to each other) to exchange heat with each other. This may vary depending on the specific design or the specific vehicle.

[0044] In particular, the interior heat conduction 10 in the heating system of the vehicle according to the present invention, comprising: a first bypass flow channel 30 (e.g. a first diversion flow channel) which defines the point where the first heat exchange flow channel 24connected to the point where the second heat exchange flow channel 26 without passing through the battery heat exchanger 22 to be guided (e.g. to run), and a first valve 32 , which is connected to the first branch line flow channel 30 or the battery heat conduction 20 provided to control the coolant flow.

[0045] In a situation where the interior heat conduction 10 and the battery heat conduction 20 sharing coolant with each other as in the present invention, it is necessary to stop the temperature raising of the high voltage battery when the temperature raising of the high voltage battery becomes excessive (eg too much, eg excessive).

[0046] At this time it is not necessary to supply the coolant through the radiator 14 (e.g. through) to the battery heat exchanger part 22which may cause damage to the high-voltage battery. Therefore, the present invention provides the first bypass flow channel 30 and the first valve 32 ready to prevent damage to the high voltage battery.

[0047] That is, the first branch line flow channel 30 is arranged around the point where the first heat exchange flow channel 24 and the point where the second heat exchange flow channel 26 with the interior heat conduction 10 and is arranged to direct the coolant through the radiator 14 (e.g. through) optionally to receive by means of the first valve 32 , so that the coolant only flows through the interior heat conduction 10 can flow through for warming or heating. A detailed description is provided below.

[0048] In a first embodiment of the heating system of the vehicle, the first valve 32 be arranged in different places.

[0049] That is, the first valve 32 can be installed at a branch point where the first heat exchange flow channel 24 and an end portion of the first bypass flow channel 30 (e.g. from each other) or where the second heat exchange flow channel 26 and another end portion of the first bypass flow channel 30 (e.g. from each other).

[0050] Fig. 1 and Fig. 2 each show that the first valve 32 is installed at a branch point where the second heat exchange flow channel 26 and the other end of the first bypass flow channel 30 On the other hand, Fig. 3, that the first valve 32is installed at a branch point where the first heat exchange flow channel 24 and one end of the first bypass flow channel 30 branched off.

[0051] The first valve can 32 be a 3-way valve so that the coolant supplied by the first pump 16 is / is pumped out, to the battery heat exchanger 22 can be delivered optionally.

[0052] Furthermore, with reference to Fig. 4 and Fig. 5, the first valve 32 at the first heat exchange flow channel 24 or the second heat exchange flow channel 26 be installed.

[0053] That is, as in Fig. 4, the first valve 32 at the first heat exchange flow channel 24 or, as in Fig. 5, at the second heat exchange flow channel 26 installed.

[0054] Therefore, the first valve 32 arranged so that the high-temperature coolant supplied from the radiator 14 is / is output to the battery heat exchanger 22 can be optionally transmitted (e.g. supplied). In particular, the first valve 32 a 2-way open-and-close valve (e.g. a 2-way open-and-close valve). Likewise, if the first valve 32 as an open-and-close valve (e.g., an open-and-close valve) that is turned on and off, the invention can be manufactured at a lower cost than when a 3-way valve is used.

[0055] Alternatively, with reference to Fig. 6 and Fig. 7, the vehicle's heating system may also include a battery cooling line 70 provided to define a first side and a second side of the battery heat exchange part 22to connect, and which is connected to a second pump 72 to circulate the coolant. The first valve 32 can be installed at a branch point where the first heat exchange flow channel 24 and the battery cooling line 70 (e.g. from each other) or where the second heat exchange flow channel 26 and the battery cooling line 70 (e.g. from each other).

[0056] The battery heat exchanger 22 can optionally be cooled using a coolant. Therefore, the present invention can further provide the battery cooling line 70 which form the first side and the second side of the battery heat exchanger part 22 connects.

[0057] As in Fig. 6 and Fig. 7, the first valve 32 on the battery cooling line 70 be set up (e.g. arranged).

[0058] Fig. 6 shows that the first valve 32 is installed at a branch point where the first heat exchange flow channel 24 and the battery cooling line 70 (e.g. from each other) branch off, and Fig. 7 shows that the first valve 32 is installed at a branch point where the second heat exchange flow channel 26 and the battery cooling line 70 (e.g. from each other).

[0059] In particular, the first valve 32 installed at a branch point where the (e.g. first or e.g. second) heat exchange flow channel from the battery cooling line 70 branches off, and can be a 3-way valve to allow or block the coolant flow.

[0060] In the first exemplary embodiment, the heating system of the vehicle may further include a control device 60 to control the opening of the first valve32 (e.g. to control the opening and closing of the first valve 32 ). In the case of an interior and battery warming mode, the control device controls 60 the first valve 32 so that the coolant flows through the interior heat conduction 10 , the first heat exchange flow channel 24 , the battery heat exchanger part 22 and the second heat exchange flow channel 26 can circulate through.

[0061] That is, in the case that interior warming (e.g. interior heating) and battery temperature increase are required, as indicated by the arrow in Fig. 1 is shown, the first valve is / will be 32 controlled so that the coolant flows through the interior heat conduction 10 , the first heat exchange flow channel 24 , the battery heat exchanger part 22 and the second heat exchange flow channel 26through it, thereby warming (e.g. heating) and increasing the battery temperature with the coolant, which is heated by the coolant heater 12 is / is heated.

[0062] Also, in the interior heating mode, the control device 60 the first valve 32 control to ensure that the coolant flows through the interior heat line 10 and the first branch line flow channel 30 circulates through.

[0063] If the electric vehicle only requires interior heating, as indicated by an arrow in Fig. 2 is shown, the first valve is / will be 32 controlled so that the coolant flows through the interior heat conduction 10 and the first fog line flow channel 30can circulate through, thereby preventing the high-voltage battery from burning out by means of the high-temperature coolant that is transmitted (e.g. supplied) to the high-voltage battery.

[0064] On the other hand, Fig. 8 is a drawing showing a heating system (e.g., a heating system) of a vehicle (e.g., a motor vehicle) according to a second exemplary embodiment of the present invention.

[0065] Referring to Fig. 8, in the heating system of the vehicle according to the second exemplary embodiment, some portions in the first heat exchange flow channel 24 and the second heat exchange flow channel 26 be thermally connected to each other to form (e.g. each associated) a heat exchange section for heat exchange, and there is provided: a second bypass flow channel 40(e.g. a second bypass flow channel) which connects the heat exchange section of the first heat exchange flow channel 24 and the heat exchange section of the second heat exchange flow channel 26 connects without passing through the battery heat exchanger 22 to be guided (e.g. to run), and a second valve 42 , which is connected to the second bypass flow channel 40 is installed to adjust the coolant flow.

[0066] That is, the second exemplary embodiment removes the first bypass flow channel 30 , which is used in the interior heat conduction 10 is used, and represents the second bypass flow channel 40 between the first and second heat exchange flow channels 24 and 26ready where the heat exchange takes place, thereby ensuring a bypass flow channel length that has a relatively short flow channel length.

[0067] In this case, it is preferred that the second valve 42 as a 3-way valve is provided when this is installed at a point where the two mist line flow channel 40 from the (eg first or eg second) heat exchange flow channel, and is provided as a 2-way opening and closing valve (eg a 2-way opening and closing valve) when connected to the second branch line flow channel 40 is installed which is not guided (e.g. runs) through the (e.g. first or e.g. second) heat exchange flow channel.

[0068] The heating system of the vehicle according to the second exemplary embodiment may further include a control device 60 to control the opening of the second valve 42(e.g. to control the opening and closing of the second valve 42 ). In the case of an interior and battery warming mode, the control device controls 60 the second valve 42 so that the coolant flows through the interior heat conduction 10 , the first heat exchange flow channel 24 , the battery heat exchanger part 22 and the second heat exchange flow channel 26 can circulate through.

[0069] This means that in the case that both interior heating (e.g. interior heating) and battery temperature increase are required, the second valve is / will be 42 controlled to direct the coolant flow toward the second bypass flow channel 40 to block so that the coolant along the interior heat line 10 , the first heat exchange flow channel 24 , the battery heat exchanger part 22and the second heat exchange flow channel 26 flows, thereby increasing the battery temperature.

[0070] On the other hand, in the indoor heating mode, the control device 60 the second valve 42 control to cause the coolant to flow through the interior heat pipe 10 , the first heat exchange flow channel 24 , the second branch line flow channel 40 and the second heat exchange flow channel 26 circulates through.

[0071] This means that if the electric vehicle only needs to heat the interior, the second valve is / will be 42 controlled to allow the coolant to flow towards the second bypass flow channel 40 to flow, thereby preventing the coolant from unnecessarily flowing to the battery heat exchanger part 22 transmitted (e.g. supplied).

[0072] Fig. 9 and Fig. 10 are drawings each showing a heating system (e.g., a heating system) of a vehicle (e.g., an automobile) according to a third exemplary embodiment of the present invention.

[0073] Referring to Fig. 9 and Fig. 10, in a heating system (e.g., a heating system) of a vehicle (e.g., a motor vehicle) according to the third exemplary embodiment, some portions in the first heat exchange flow channel 24 and the second heat exchange flow channel 26 thermally connected to each other to form (e.g. each associated) a heat exchange section for heat exchange, and a third bypass flow channel 50 (e.g. a third bypass flow channel) which is parallel to the first heat exchange flow channel 24 or the second heat exchange flow channel 26 connected to the first heat exchange flow channel24 or the second heat exchange flow channel 26 be provided to bypass (e.g., bypass, e.g., run past) the heat exchange section.

[0074] A third valve can 52 for adjusting the coolant flow at the third bypass flow channel 50 or the (eg first or eg second) heat exchange flow channel in (eg on) which the third bypass flow channel 50 It is preferred that the third valve 52 , which is connected to the third branch line flow channel 50 or the (e.g. first or e.g. second) heat exchange flow channel is installed, a 2-way opening and closing valve (e.g. a 2-way opening and closing valve).

[0075] That is, the third exemplary embodiment adds the third bypass flow channel 50 and the third valve 52to the configuration of the first exemplary embodiment. Fig. 9 and Fig. 10 show in each case in the configuration that the third valve 52 on the third branch line flow channel 50 However, there is a difference that the third branch line flow channel 50 in Fig. 9 at the first heat exchange flow channel 24 is installed and in Fig. 10 on the second heat exchange flow channel 24 is installed.

[0076] The third branch line flow channel 50 may be arranged (eg arranged) to increase the battery temperature increasing efficiency by transmitting (eg supplying) the coolant heater 12 heated coolant to the battery heat exchanger 22 without heat exchange between the first and second heat exchange flow channels 24 and 26 .

[0077] Therefore, the third valve 52 be operated so that the coolant flows through the (eg first or eg second) heat exchange flow channel when the coolant temperature is equal to or lower than a (eg set) temperature, and so that the coolant flows through the third bypass flow channel 50 flows (through) when the coolant temperature is higher than the set temperature.

[0078] This means the third valve 52 may be provided as a thermostat (e.g., a temperature controller) and may be opened or closed according to the coolant temperature without any additional control to control whether the coolant flows through the third bypass flow channel 50 flows.

[0079] In the third exemplary embodiment, the first valve 32be operated in the same way as in the first exemplary embodiment, but the third valve 52 be operated depending on the coolant temperature. The third valve 52 is / will be closed when the coolant temperature is below the set temperature, so that the coolant does not flow through the third bypass flow channel 50 happens (e.g. is guided, e.g. flows), but is / will be opened when the coolant temperature is higher than the set temperature, so that the coolant is supplied to the battery heat exchanger part 22 can be transmitted (e.g. supplied) through the third branch line flow channel 50 without exchanging heat and without deteriorating the thermal efficiency of the coolant.

[0080] Therefore, it is possible to rapidly temperature-elevate the high-voltage battery (e.g., rapidly increase the temperature of the high-voltage battery) even under coolant temperature deterioration conditions.

[0081] Fig. 11 is a drawing showing a heating system (e.g., a heating system) of a vehicle (e.g., a motor vehicle) according to a fourth exemplary embodiment of the present invention. Referring to Fig. 11, in the heating system of the vehicle according to the fourth exemplary embodiment, the first valve 32 a 4-way valve installed at a branch point where the first heat exchange flow channel 24 and respective end sections of the third bypass flow channel 50 and the first bypass flow channel 30 branch off to adjust the coolant flow.

[0082] That is, the fourth exemplary embodiment is similar to the third exemplary embodiment, but proposes to reduce the number of applications of the valve so that the manufacturing cost can be reduced.

[0083] A control device 60 to control the opening of the first valve 32 (e.g. to control the opening and closing of the first valve 32 ) may be further included. In the case of an interior and battery warming mode and when the coolant temperature is higher than a (e.g., set) temperature, the control device 60 the first valve 32 so that the coolant flows through the interior heat conduction 10 , the first heat exchange flow channel 24 , the battery heat exchanger part 22 and the second heat exchange flow channel 26 can circulate through.

[0084] This means that if the coolant temperature is higher than the set temperature, the first valve 32 provided so that the coolant coming from the coolant heater 12 is / is being output, is / is being cooled to be fed to the battery heat exchanger 22 transmitted (e.g. supplied), thereby preventing the high-voltage battery from being damaged.

[0085] Furthermore, in the case of an interior and battery warming mode and when the coolant temperature is equal to or lower than the set temperature, the control device controls 60 the first valve 32 so that the coolant flows through the interior heat conduction 10 , the third branch line flow channel 50 , the battery heat exchanger part 22 and the second heat exchange flow channel 26 can circulate through.

[0086] Therefore, when the coolant temperature is equal to or lower than the set temperature, by transmitting (e.g., supplying) the coolant to the battery heat exchange part 22 without any heat loss, it is possible to ensure the battery temperature increase efficiency to the maximum.

[0087] In the case of an interior warming mode (e.g. an interior heating mode), the control device controls 60 the first valve 32 so that the coolant flows through the interior heat conduction 10 and the first branch line flow channel 30 can circulate through.

[0088] Fig. 12 is a graph showing the change of a coolant temperature according to a heating system (e.g., a heating system) of a vehicle (e.g., a motor vehicle) of the present invention. As shown in Fig.12, when the first and second heat exchange flow channels exchange heat with each other, the temperature of the coolant supplied to the battery heat exchange part is reduced to prevent the high-voltage battery from burning out, and the coolant temperature of the coolant supplied to the coolant heater is increased to minimize the load on the coolant heater.

[0089] In addition, a battery cooling device for heat exchange with a radiator and a refrigerant line may be provided on (eg in) the battery cooling line 70 . Likewise, a waste heat exchanger for exchanging heat with an electrical component cooling line may be provided in (e.g., on) the flow channel that passes the radiator.

[0090] According to the heating system of the vehicle having the structure described above, the coolant of the interior heat pipe, whose temperature is increased by the heater, passes (e.g., flows) through the battery, so that the battery can be quickly increased in temperature (e.g., heated).

[0091] In particular, by exchanging heat between the coolant flowing into the battery and the coolant flowing out of the battery by means of the heat exchanger, it is possible that the superheated coolant (e.g., the coolant with an excessive temperature) flows into the battery, thereby preventing damage (e.g., damage to) the battery, and the medium-warm coolant (e.g., the coolant with a medium temperature) is supplied to the coolant heater, so that it is possible to reduce the operation load of the coolant heater.

[0092] Although specific embodiments of the present invention have been described and illustrated, it will be understood by those skilled in the art that various changes and modifications are possible without departing from the scope of the present invention as disclosed and defined in the appended claims.

Claims

[1] Heating system of a vehicle, comprising: an interior heat pipe (10) arranged to pass through a coolant heater (12) and through a radiator (14) for interior air conditioning, and provided with a first pump (16) so that coolant flows therein, and a battery heat line (20) branching from a downstream point of the radiator (14) and connected to an upstream point of the coolant heater (12) after passing through a battery heat exchange part (22) for increasing the temperature of a high-voltage battery, wherein the battery heat pipe (20) further comprises: a first heat exchange flow channel (24) connecting a downstream point of the heater body (14) to a first side of the battery heat exchange part (22), and a second heat exchange flow channel (26) connecting a second side of the battery heat exchange part (22) and an upstream point of the coolant heater (12), wherein the first heat exchange flow channel (24) and the second heat exchange flow channel (26) are each configured to exchange heat with each other. [2] The vehicle heating system according to claim 1, wherein the interior heat pipe (10) further comprises: a first bypass flow channel (30) connecting the point where the first heat exchange flow channel (24) is connected and the point where the second heat exchange flow channel (26) is connected without passing through the battery heat exchange part (22), and a first valve (32) provided on the first bypass flow channel (30) or the battery heat line (20) for controlling the coolant flow. [3] The heating system of the vehicle according to claim 2, wherein the first valve (32) is installed at a branching point where the first heat exchange flow channel (24) and one end portion of the first bypass flow channel (30) branch from each other or where the second heat exchange flow channel (26) and another end portion of the first bypass flow channel (30) branch from each other. [4] The heating system of the vehicle according to claim 2 or 3, wherein the first valve (32) is installed on the first heat exchange flow channel (24) or the second heat exchange flow channel (26). [5] The heating system of the vehicle according to claim 2, further comprising: a battery cooling line (70) provided to connect the first side and the second side of the battery heat exchange part (22) and equipped with a second pump (72) so that the coolant can be circulated, and wherein the first valve (32) is installed at a branch point where the first heat exchange flow channel (24) and the battery cooling line (70) branch from each other or where the second heat exchange flow channel (26) and the battery cooling line (70) branch from each other. [6] Heating system of the vehicle according to any one of claims 2-5, further comprising: a control device (60) for controlling the opening of the first valve (32), and in the case of an interior and battery heating mode, the control device (60) controls the first valve (32) so that the coolant can circulate through the interior heating line (10), the first heat exchange flow channel (24), the battery heat exchange part (22) and the second heat exchange flow channel (26). [7] Heating system of the vehicle according to any one of claims 2-5, further comprising: a control device (60) for controlling the opening of the first valve (32), and in the case of an interior heating mode, the control device (60) controls the first valve (32) so that the coolant can circulate through the interior heating line (10) and the first mist line flow channel (30). [8] A vehicle heating system according to claim 1, wherein: some sections in the first heat exchange flow channel (24) and the second heat exchange flow channel (26) are thermally connected to each other to form a heat exchange section for heat exchange, and further comprising: a second bypass flow channel (40) connecting the heat exchange portion of the first heat exchange flow channel (24) and the heat exchange portion of the second heat exchange flow channel (26) without passing through the battery heat exchange member (22), and a second valve (42) installed on the second bypass flow channel (40) for adjusting the coolant flow. [9] The vehicle heating system according to claim 8, further comprising: a control device (60) for controlling the opening of the second valve (42), and in the case of an interior and battery heating mode, the control device (60) controls the second valve (42) so that the coolant can circulate through the interior heating line (10), the first heat exchange flow channel (24), the battery heat exchange part (22) and the second heat exchange flow channel (26). [10] The vehicle heating system according to claim 8, further comprising: a control device (60) for controlling the opening of the second valve (42), and in the case of an interior heating mode, the control device (60) controls the second valve (42) so that the coolant can circulate through the interior heating line (10), the first heat exchange flow channel (24), the second bypass flow channel (40) and the second heat exchange flow channel (26). [11] A vehicle heating system according to claim 2, wherein: some sections in the first heat exchange flow channel (24) and the second heat exchange flow channel (26) are thermally connected to each other to form a heat exchange section for heat exchange, and a third bypass flow channel (50) connected in parallel to the first heat exchange flow channel (24) or the second heat exchange flow channel (26) is provided on the first heat exchange flow channel (24) or the second heat exchange flow channel (26) to bypass the heat exchange section. [12] The heating system of the vehicle according to claim 11, wherein a third valve (52) for adjusting the coolant flow is provided at the third bypass flow channel (50) or the heat exchange flow channel (24, 26) on which the third bypass flow channel (50) is installed. [13] The vehicle heating system according to claim 12, wherein the third valve (52) is operated so that the coolant flows through the heat exchange flow channel (24, 26) when the coolant temperature is equal to or lower than a set temperature, and so that the coolant flows through the third bypass flow channel (50) when the coolant temperature is higher than the set temperature. [14] The vehicle heating system according to any one of claims 11-13, wherein the first valve (32) is a 4-way valve installed at a branching point where the first heat exchange flow channel (24) and respective end portions of the third bypass flow channel (50) and the first bypass flow channel (30) branch off to adjust the coolant flow. [15] The vehicle heating system according to claim 14, further comprising: a control device (60) for controlling the opening of the first valve (32), and in the case of an interior and battery warming mode and when the coolant temperature is higher than a set temperature, the control device (60) controls the first valve (32) so that the coolant can circulate through the interior heat line (10), the first heat exchange flow channel (24), the battery heat exchange part (22) and the second heat exchange flow channel (26). [16] The vehicle heating system according to claim 14, further comprising: a control device (60) for controlling the opening of the first valve (32), and in the case of an interior and battery warming mode and when the coolant temperature is equal to or lower than a set temperature, the control device (60) controls the first valve (32) so that the coolant can circulate through the interior warming line (10), the third bypass flow channel (50), the battery heat exchange part (22) and the second heat exchange flow channel (26). [17] The vehicle heating system according to claim 14, further comprising: a control device (60) for controlling the opening of the first valve (32), and in the case of an interior heating mode, the control device (60) controls the first valve (32) so that the coolant can circulate through the interior heating line (10) and the first mist line flow channel (30).

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