CN116901647A

CN116901647A - Temperature control device for a motor vehicle and motor vehicle

Info

Publication number: CN116901647A
Application number: CN202310375938.0A
Authority: CN
Inventors: S·霍夫曼宁格; A·苏卡
Original assignee: Bayerische Motoren Werke AG
Current assignee: Bayerische Motoren Werke AG
Priority date: 2022-04-13
Filing date: 2023-04-10
Publication date: 2023-10-20
Also published as: DE102022109111A1

Abstract

The invention relates to a temperature control device for a motor vehicle, comprising a valve device having eight ports and a temperature control circuit through which a temperature control fluid can flow, the temperature control circuit comprising a first line which is in fluid connection with a first port and in fluid connection with a second port. The first circuit comprises at least one first branch in which at least one drive machine which can be tempered by means of a tempering fluid flowing through the first branch is arranged, and a second branch which is connected in parallel to the first branch and in which a first heat exchanger which can be traversed by the tempering fluid flowing through the second branch is arranged, which is also arranged in a refrigerant circuit which is arranged in addition to the tempering circuit and can be traversed by a refrigerant and through which heat can be exchanged between the tempering fluid and the refrigerant.

Description

Temperature control device for a motor vehicle and motor vehicle

Technical Field

The invention relates to a temperature control device for a motor vehicle, in particular for a motor vehicle. The invention also relates to a motor vehicle, in particular a motor vehicle, having such a temperature control device.

Background

A cooling system for a motor vehicle is known from DE102017220376A1, which has an electrical energy store for driving the motor vehicle. Furthermore, DE102019132688A1 discloses a thermal management system for a motor vehicle, which has a motor-cooler circuit in which a cooler, an electrical energy store and an electric motor are arranged. Furthermore, a thermal management system for a vehicle is known from US3336319B 2.

Disclosure of Invention

The object of the present invention is to provide a temperature control device for a motor vehicle and a motor vehicle, such that particularly advantageous temperature control can be achieved.

According to the invention, this object is achieved by a temperature control device having the features of claim 1 and by a motor vehicle having the features of claim 15. Advantageous embodiments of the invention are the subject of the dependent claims.

A first aspect of the invention relates to a temperature control device for a motor vehicle, in particular for a motor vehicle, preferably in the form of a passenger car. This means that a motor vehicle, preferably designed as a motor vehicle, in particular a passenger car, has a temperature control device in its fully manufactured state. In particular, a particularly advantageous temperature control, i.e. cooling and/or heating, of the interior of the motor vehicle, also referred to as the passenger compartment or passenger compartment, in which a person, such as a driver of the motor vehicle, can rest during driving of the motor vehicle, can be achieved, for example, by means of a temperature control device. For this purpose, the temperature control device has a valve device with eight connections, in particular exactly eight connections. Furthermore, the temperature control device has a temperature control circuit through which a temperature control fluid, which may preferably be in a liquid state, flows. Preferably the tempering fluid is a liquid and thus is liquid. For example, the temperature-regulating fluid may comprise at least water. The tempering circuit has a first line in fluid connection with a first one of the interfaces and in fluid connection with a second one of the interfaces. This means that the first line is connected to the first port and the second port and is thus in fluid connection with the valve device via the first port and via the second port.

The valve device has, for example, a valve device housing and a valve device element which can be moved, for example, into a plurality of positions relative to the valve device housing, in particular rotationally and/or translationally. For example, the valve device element may be arranged at least partially in the valve device housing. The first line is in this case, for example, in fluid connection with the valve device housing via a first connection and a second connection.

The first line has at least one first branch, which is thus a first part of the first line. At least one or precisely one drive machine, which can be tempered by means of a tempering fluid flowing through the first branch, i.e. is to be cooled and/or heated, is arranged in the first branch, by means of which drive machine the motor vehicle can be driven. For example, the temperature-regulating fluid flowing through the first line or the first branch can flow through at least a part of the drive machine, whereby the drive machine can be temperature-regulated, i.e. cooled and/or heated, in particular by heat exchange between the temperature-regulating fluid flowing through the first branch and the drive machine. The drive machine is preferably designed as an electric machine, which can be operated, for example, in motor operation and thus as an electric motor, by means of which the motor vehicle can be driven, in particular, purely electrically. It is very much preferred that the drive machine, in particular the electric machine, is a high-voltage component whose voltage, in particular the electric operating voltage or the nominal voltage, is preferably greater than 50 volts, in particular greater than 60 volts and very preferably several hundred volts. In this way, particularly high electrical power can be achieved for driving, in particular electrically driven motor vehicles.

The first line further comprises at least one second branch, which is thus a second part of the first line. The second branch is connected in flow parallel with the first branch. A first heat exchanger is arranged in the second branch, so that the first heat exchanger can be flown through by the temperature-regulating fluid flowing through the second branch. The first heat exchanger is also arranged in a refrigerant circuit which is arranged in addition to the tempering circuit and through which the refrigerant can flow, so that the first heat exchanger can also be through-flowed by the refrigerant. Heat may be exchanged or transferred between the temperature-regulating fluid flowing through the first heat exchanger and the refrigerant flowing through the first heat exchanger by the first heat exchanger. Preferably, the refrigerant is provided in addition to the temperature-adjusting fluid and is a fluid different from the temperature-adjusting fluid. It is furthermore preferably provided that the refrigerant circuit is fluidically separated from the tempering circuit. The refrigerant circuit and the refrigerant are preferably part of an air conditioning system, also referred to as an air conditioning system, of the motor vehicle, wherein the air conditioning system may be part of a temperature control device. Since the first heat exchanger is arranged not only in the second branch but also in the refrigerant circuit, the first heat exchanger is also a component of the air conditioning system. The air conditioning system is designed to condition air to be supplied to the interior of the motor vehicle, which is also referred to as interior air. By tempering, in particular cooling and/or heating, the air to be supplied to the interior space, the interior space can be tempered, i.e. cooled and/or heated.

For example, the first heat exchanger is a cooling device or the first heat exchanger can be operated as a cooling device, by means of which the refrigerant can be cooled, in particular by: heat may be transferred from the refrigerant through the first heat exchanger to/from the temperature regulating fluid flowing through the first heat exchanger. In particular, the first heat exchanger can be a condenser or can be operated as a condenser, wherein the refrigerant can be condensed by means of the condenser, in particular by cooling the refrigerant, in particular by: heat may be transferred from the refrigerant to/from the temperature regulating fluid flowing through the second branch by means of the condenser.

An air conditioning system may have a refrigerant compressor which is arranged in a refrigerant circuit and is also referred to simply as a compressor or compressor, by means of which a refrigerant can be conveyed through the refrigerant circuit and compressed.

The tempering circuit has a second line in fluid connection with a third one of the interfaces and in fluid connection with a fourth one of the interfaces. This means that the second line is connected to the third port and to the fourth port and is thus in fluid connection with the valve device, in particular with the valve device housing, via the third port and via the fourth port. An electrical energy store for storing electrical energy, in particular electrochemically, is arranged in the second circuit, which is to be warmed, i.e. cooled and/or heated, by means of a tempering liquid flowing through the second circuit. Preferably, the electrical energy store is a high-voltage component whose voltage, in particular the electrical operating voltage or the nominal voltage, is preferably greater than 50 volts, in particular greater than 60 volts and very preferably several hundred volts. In particular, it is conceivable that the drive machine, in particular the electric machine, can be supplied with electrical energy stored in the energy store, whereby the electric machine can be operated during motor operation.

Furthermore, the tempering circuit has a third line which is in fluid connection with a fifth of the connections and with a sixth of the connections. This means that the third line is connected to the fifth port and the sixth port and is thus in fluid connection with the valve device, in particular with the valve device housing, via the fifth port and via the sixth port. A second heat exchanger is provided in the third line, which can be flown through by the temperature control fluid flowing through the third line, and is provided in addition to the first heat exchanger. The second heat exchanger is also arranged in the refrigerant circuit and can therefore also be flown through by the refrigerant. Heat may be transferred or exchanged between the temperature-regulating fluid flowing through the second heat exchanger and the refrigerant flowing through the second heat exchanger by the second heat exchanger. The second heat exchanger is, for example, a cooler or the second heat exchanger is also referred to as a cooler, so that, for example, heat can be transferred from the temperature-regulating fluid to the refrigerant via the second heat exchanger, whereby the temperature-regulating fluid can be cooled.

For example, an air conditioning system has a vaporizer/evaporator for vaporizing/evaporating a refrigerant, which is provided in a refrigerant circuit, in addition to a first heat exchanger and in addition to a second heat exchanger. For example, the carburettor may be circulated by air, in particular air to be fed into the interior space. The evaporator can transfer heat from the circulation evaporator and, for example, air to be supplied to the interior space to the refrigerant, so that, for example, the air of the circulation evaporator can be cooled or cooled, which air can be supplied to the interior space or introduced into the interior space, for example. It can be seen that heat can be transferred to/from the refrigerant, for example, by means of the second heat exchanger and, if applicable, by means of the evaporator, in particular by: heat may be transferred from the temperature-regulating fluid to/from the refrigerant by the second heat exchanger and, if possible, from the air of the loop vaporizer to/from the refrigerant by the vaporizer. In particular, heat can be transferred from the energy store to the tempering fluid and subsequently from the tempering fluid to the refrigerant via the second heat exchanger, so that, for example, the interior space can be heated by means of the tempering device, for example, using the heat transferred or already transferred from the tempering fluid, in particular via the second heat exchanger, and, if appropriate, from the air of the circulation vaporizer via the vaporizer or already transferred to the refrigerant. The interior space can thereby be heated in a particularly energy-saving manner.

For example, the air conditioning system can be operated in a heat pump mode and thus as a heat pump. In particular in the operation of the heat pump and thus by means of the heat pump, the heat contained in the refrigerant and transferred or already transferred to the refrigerant, in particular by means of the second heat exchanger and/or the evaporator, can be used to heat the air to be supplied to the interior space. It is highly preferred that the air conditioning device can in particular also be operated in and therefore also as a compression cooler, by means of which in particular the air to be supplied to the interior space can be cooled by the evaporator in the manner described. Furthermore, heat can be transferred to the temperature-regulating fluid by transferring heat from the drive machine to the temperature-regulating fluid and subsequently, for example, from the temperature-regulating fluid, in particular via the second heat exchanger, to the refrigerant, so that, for example, the heat provided or available by the drive machine and/or an energy store, also referred to as a high-pressure store or a high-pressure store, can also be used for heating the interior, in particular in the heat pump operation. The heat transferred from the refrigerant to the temperature-regulating fluid, for example by means of the first heat exchanger, can be used to heat the accumulator and/or the drive machine, in particular in a satisfactory manner, which is particularly advantageous at low ambient or external temperatures.

Since the temperature-regulating fluid is preferably liquid, i.e. liquid, the first heat exchanger is designed, for example, or can be operated as a liquid-cooled, in particular water-cooled condenser (WCC). It can also be seen that the third line is the third part of the tempering circuit.

The tempering circuit also has a fourth line, which is a fourth part of the tempering circuit. A fourth line is fluidly connected to a seventh one of the interfaces and to an eighth one of the interfaces. This means that the fourth line is connected to the seventh interface and the eighth interface and is thus in fluid connection with the valve device, in particular with the valve device housing, via the seventh interface and the eighth interface. In the fourth line, an ambient air cooler, also called radiator, is provided, by means of which the temperature-regulating fluid flowing through the ambient air cooler can be cooled by means of the ambient air circulating through the ambient air cooler. In particular, when the motor vehicle is traveling forward, the ambient air, i.e. the traffic wind formed by the ambient air, can circulate around the ambient air cooler, whereby the temperature control fluid can be cooled advantageously by the ambient air cooler. In particular, ambient air is understood to be air which is generally located in the environment of the motor vehicle. The temperature control fluid can be cooled effectively by means of an ambient air cooler, also referred to as a high temperature cooler or as a high temperature cooler (HT cooler), and thus the electric energy store and/or the drive machine can be cooled, for example, by the temperature control fluid, so that particularly advantageous and in particular desirable temperature control can be achieved. By using a valve device, for example, in the form of a switching valve/distribution valve, which can be switched into different switching states, for example, in particular when using electrical energy, a temperature control fluid can be guided in a particularly satisfactory manner, wherein a low number of actuators can be maintained. In this way, particularly advantageous temperature regulation can be achieved in a particularly light, cost-effective and space-saving manner. The valve device element can be moved between the respective positions, for example by switching the valve device between the switching states. In other words, the valve device element can be moved into the respective position, for example, by switching the valve device into the respective switching state.

In order to be able to achieve a particularly advantageous temperature regulation in a particularly satisfactory manner, it is provided in one embodiment of the invention that a proportional valve which is arranged in addition to the valve device and is located externally with respect to the valve device is arranged in the second branch upstream or downstream of the first heat exchanger, wherein the valve device is located externally with respect to the proportional valve, i.e. with respect to the additionally arranged component of the proportional valve.

The proportional valve may be switched, for example, between a first valve state and a second valve state. In the second valve state, the proportional valve releases the second branch more strongly or further than in the first valve state, so that the proportional valve has, for example, a flow cross section through which the temperature control fluid can flow through the second branch, which flow cross section is greater in the second valve state than in the first valve state. In particular, the first valve state is a closed state in which the second branch is closed, i.e. blocked, by the proportional valve, so that the flow cross section, also referred to as the flow cross section, is zero, so that, for example, in the first valve state, in particular in the closed state, no tempering fluid is supplied to the first heat exchanger via the proportional valve or does not flow through the first heat exchanger. The second valve state is, for example, an open state in which the proportional valve releases the second branch, in particular more strongly than in the first valve state, so that in the second valve state, in particular in the open state, the flow cross section is greater than zero. In the second valve state, the heat exchanger can therefore be supplied with a temperature control fluid via the proportional valve, or in the second valve state the proportional valve allows a temperature control fluid to flow through the first heat exchanger, or the proportional valve enables a temperature control fluid to flow through the first heat exchanger. The proportional valve can be switched between the valve states, i.e. can be switched into the valve states and can also be brought into a plurality of intermediate states. In particular, for example, the proportional valve has a proportional valve housing and a proportional valve element which can be moved relative to the proportional valve housing into a first switching position, which brings about a first valve state, and into a second switching position, which brings about a second valve state. Furthermore, the proportional valve element can be moved relative to the proportional valve housing, in particular at least substantially continuously and/or continuously, into a plurality of intermediate positions, which bring about a respective intermediate state, between the switching positions. In the respective intermediate state or in the respective intermediate position, the proportional valve or the proportional valve element blocks the second branch more strongly than in the second valve state, and in the respective intermediate state, in particular in the respective intermediate position, the proportional valve releases the second branch and in this case releases the second branch more strongly or further than in the first valve state. Thus, for example, in the respective intermediate state the flow cross section is greater than in the first valve state and smaller than in the second valve state, the flow cross sections in the respective intermediate state have respective values, and the respective values are different from each other and in particular greater than zero. In particular, for example, the proportional valve element can be moved at least substantially continuously into the respective switching position and into the respective intermediate position. The proportional valve can thus in particular regulate the different, through-flow second branches of the temperature-regulating fluid and thus the volume flow and/or the mass flow through the first heat exchanger, in particular greater than zero, in that the proportional valve or the proportional valve element can be switched or moved into the respective intermediate states or intermediate positions and the second valve state or second switching position, and in particular the proportional valve can in particular achieve a fluid blocking of the second branches in that the proportional valve or the proportional valve element can be switched or moved into the first valve state or the first switching position. In particular, it is thus conceivable that in the respective intermediate position or in the respective intermediate state the flow cross section is greater than zero and greater than the flow cross section in the first valve state or in the first switching position and less than the flow cross section in the second valve state or in the second switching position. In particular, it is conceivable that by moving the proportional valve element into the respective switching positions and into the respective intermediate positions, the flow cross section can be changed, i.e. can be changed, at least substantially continuously and/or continuously, in particular between a minimum value, for example zero, in particular in the first valve state and a maximum value, which is greater than the minimum value and zero, in particular in the second valve state. The proportional valve is thus a throttle valve or can be operated as a throttle valve, since in the respective intermediate state the heat exchanger can be flown through by the temperature control fluid flowing through the second branch or through it, but is throttled with respect to the second valve state. In other words, the heat exchanger can be throttled or throttled by the temperature control fluid in the respective intermediate state relative to the second valve state, whereby the temperature control fluid can be supplied to the first heat exchanger in a particularly satisfactory manner via the proportional valve (throttle valve) or a particularly satisfactory flow through of the first heat exchanger can be achieved. In particular, the proportional valve is designed, for example, as a two-position two-way throttle valve or a 2/2 throttle valve. In other words, the temperature-regulating fluid can be supplied or flowed through the first heat exchanger in a desired manner by means of the proportional valve, in particular the adjustment can be carried out, in particular the advantageous throttling of the first heat exchanger, i.e. the flow of the temperature-regulating fluid through the first heat exchanger, can be adjusted in a desired manner.

A further embodiment is characterized in that a second ambient air cooler is provided in the second branch, which is provided in addition to the ambient air cooler and in addition to the heat exchanger, by means of which the temperature-regulating fluid flowing through the second branch and thus through the second ambient air cooler and the first heat exchanger can be cooled by means of ambient air circulating the second ambient air cooler. For example, the second ambient air cooler is arranged upstream of the first heat exchanger and in particular downstream of the first interface. In particular, it can be provided that the proportional valve is arranged downstream of the first heat exchanger and in this case in particular upstream of the second connection. The second ambient air cooler is for example a cryocooler or also called a cryocooler (NTK). By using an optionally provided second ambient air cooler, particularly advantageous tempering, in particular cooling, of the tempering fluid can be achieved. In particular, a particularly advantageous throttling of the second ambient air cooler or a particularly advantageous throttling of the temperature control fluid flowing through the second ambient air cooler can also be achieved by using a proportional valve.

In a further embodiment, provision is made for an electrical heating element, i.e. an electrically operable heating element, to be arranged in the first circuit for heating the temperature-regulating fluid flowing through the first circuit, which means that the temperature-regulating fluid can be heated effectively and efficiently by means of the electrical heating element, so that an advantageous temperature regulation, in particular heating, of the interior space can be achieved, in particular in the operation of the heat pump.

It has proven to be particularly advantageous if the heating element is connected in series with the branches in a first line, in particular, for example, in such a way that the heating element is arranged downstream of the line.

In a further particularly advantageous embodiment of the invention, an electrical heating element for heating the temperature-regulating fluid flowing through the third line is provided in the third line, as a result of which particularly effective and efficient heating of the temperature-regulating fluid and, for example, thus particularly effective and efficient temperature regulation, in particular heating, of the interior space can be achieved.

In order to be able to achieve a particularly satisfactory flow of the tempering fluid and thus a particularly satisfactory tempering of the interior, it is provided in a further embodiment of the invention that a pump is provided in the first line, by means of which the tempering fluid can be fed.

Furthermore, it has proven to be particularly advantageous if a pump for delivering the temperature control fluid is provided in the third line, as a result of which the temperature control fluid can be delivered in a particularly satisfactory manner. Particularly advantageous temperature regulation can thus be achieved.

In order to be able to supply the temperature-regulating fluid in a particularly satisfactory manner and in an energy-saving manner, in a further embodiment of the invention, the pump arranged in the first line and/or the pump arranged in the third line is designed as an electric pump, i.e. as an electrically operable pump. If reference is made to a pump below, this is understood to be a first pump and a second pump, unless otherwise indicated.

In a further particularly advantageous embodiment of the invention, it is provided that the valve device can be switched, in particular discontinuously, at least between a first switching state and a second switching state. For this purpose, the valve device element can be moved discontinuously, in particular translationally and/or rotationally, relative to the valve device housing between a first position, which brings about a first switching state, and a second position, which brings about a second switching state.

In the first switching state, the first line and the fourth line are fluidically connected to each other by the valve device, i.e. within the valve device, and are thereby connected in series with each other, whereby the first line and the fourth line form a first total line. For this purpose, the first port and the seventh port are fluidically connected to one another within the valve device, and the eighth port and the second port are fluidically connected to one another within the valve device.

In the first switching state, the third line and the second line are fluidically connected to each other by the valve device, i.e. within the valve device, and are thereby connected in series with each other, whereby the third line and the second line form a second total line. In the first switching state, no fluid connection of the first main line to the second main line via the valve device takes place, so that the first main line and the second main line are not fluidly connected to each other via the valve device. It can be said that the pumps are connected in parallel to one another, i.e. the pumps can be operated in parallel to one another or independently of one another, so that, for example, a first pump conveys the tempering fluid exclusively through the first main line with respect to the main line and a second pump conveys the tempering fluid exclusively through the second main line with respect to the main line.

For example, it is thereby provided that in the first switching state, the first port is in fluidic connection with the seventh port within the valve device, in particular with respect to the port only, the second port is in fluidic connection with the eighth port within the valve device, in particular with respect to the port only, the third port is in fluidic connection with the fifth port within the valve device, in particular with respect to the port only, the fifth port is in fluidic connection with the sixth port within the valve device, in particular with respect to the port only, the sixth port is in fluidic connection with the third port within the valve device, in particular with respect to the port only, the seventh port is in fluidic connection with the valve device, in particular with respect to the port only, the first port and the eighth port is in fluidic connection with the valve device, in particular with respect to the port only, the second port.

In the second switching state, the first line, the third line and the second line are fluidically connected to one another through the valve device, i.e. within the valve device, in particular within the valve device housing, and are thus fluidically connected to one another in series, whereby the first line, the third line and the second line form a third total line, wherein no fluidic connection of the third total line to the fourth line through the valve device takes place. This means that the third main line is not fluidly connected to the fourth line via the valve means. Thus, for example, in the second switching state, the pumps are connected to one another in series in terms of flow technology. In particular, provision is made for the temperature-regulating fluid to flow through the first and the second main line in the first switching state. In particular, it can be provided that in the first switching state the pumps are activated, in particular simultaneously, and thus operated, so that in the first switching state, for example, the temperature control fluid is fed, in particular simultaneously, by means of two pumps.

For example, it is provided that in the second switching state the temperature control fluid flows through the third main line. In particular, it is conceivable that in the second switching state the pumps are activated, in particular simultaneously, and thus operate, so that in the second switching state, for example, the temperature control fluid is delivered, in particular simultaneously, by means of two pumps. For example, it is provided that in the second switching state the temperature control fluid flows through the fourth line, or in the second switching state the temperature control fluid does not flow through the fourth line. In particular, it is conceivable that in the second switching state no tempering fluid is actively conveyed through the fourth line. In particular, it may be provided that in the second switching state, the first interface is in fluidic connection with the sixth interface within the valve device, in particular within the valve device housing, in particular with respect to the or all interfaces, the second interface is in fluidic connection with the fourth interface within the valve device, in particular with respect to the or all interfaces, the third interface is in fluidic connection with the fifth interface within the valve device, in particular with respect to the interfaces, the fifth interface is in fluidic connection with the third interface within the valve device, in particular with respect to the interfaces, and the sixth interface is in fluidic connection with the first interface, in particular with respect to the interfaces, the seventh interface is in fluidic connection with the eighth interface within the valve device, in particular with respect to the interfaces, or the seventh interface is in fluidic connection with the seventh interface, in particular with respect to the interfaces, or the seventh interface is in fluidic separation with the or all other interfaces within the valve device and the eighth interface is in fluidic separation with the or all other interfaces within the valve device. The temperature control fluid can thus be conducted or guided through the line in a particularly satisfactory manner, so that particularly advantageous temperature control can be achieved.

In order to be able to achieve a particularly advantageous and desired temperature regulation, it is provided in a further embodiment of the invention that the valve device can be switched, in particular discontinuously, between a first switching state, a second switching state and a third switching state. In the third switching state, the second line and the first line are fluidically connected to one another by the valve device and are thus fluidically connected to one another in series, whereby the second line and the first line form a fourth overall line. In the third switching state, the third line and the fourth line are fluidically connected to one another by the valve device, i.e. within the valve device or the valve device housing, and are thus fluidically connected to one another in series, whereby the third line and the fourth line form a fifth overall line. In the third switching state, no fluid connection of the fourth main line to the fifth main line via the valve device takes place, so that the fourth main line is not in fluid connection with the fifth main line via the valve device. In particular, it can be provided that the fourth and the fifth line are fluidically separated from one another. The pumps are thus connected in parallel to one another, for example, which means that the pumps can be operated in parallel, in particular in such a way that the tempering fluid is fed simultaneously by means of two pumps. Thus, for example, both pumps are activated simultaneously, so that both pumps are operated simultaneously. Thus, for example, the first pump conveys the temperature-regulating fluid exclusively via the fifth main line and the sixth main line, and the second pump conveys the temperature-regulating fluid exclusively via the sixth main line, for example, via the fifth main line and the sixth main line.

In the present disclosure, ordinal terms such as "first," "second," "third," etc., do not necessarily denote the order of the elements or the collection of necessarily provided by the ordinal terms, for example, when referring to the fourth element, the first element, the second element, and the third element are not necessarily provided, but the ordinal terms are particularly used to distinguish between the terms so as to be able to individually reference the terms.

For example, in a third switching state, provision can be made for: the first interface is in fluidic connection with the third interface, in particular with respect to the or all interfaces, the second interface is in fluidic connection with the fourth interface, in particular with respect to the interfaces, in the valve device, the third interface is in fluidic connection with the first interface, in particular with respect to the interfaces, the fourth interface is in the valve device, in particular with respect to the interfaces, in fluidic connection with the second interface, the fifth interface is in the valve device, in particular with respect to the interfaces, in fluidic connection with the seventh interface, the sixth interface is in the valve device, in particular with respect to the interfaces, in fluidic connection with the eighth interface, in particular with respect to the interfaces, in fluidic connection with the fifth interface, and the eighth interface is in the valve device, in particular with respect to the interfaces, in fluidic connection with the sixth interface.

In order to be able to guide the tempering liquid particularly advantageously and thus to achieve particularly advantageous tempering, it is provided in a further embodiment of the invention that the valve device can be switched, in particular discontinuously, between the first switching state, the second switching state and the fourth switching state. In the fourth switching state, the second line, the third line, the fourth line and the first line are fluidly connected to each other by the valve device and are thereby connected in series with each other. In particular, the pumps are thereby connected to one another in series. For example, the pumps are activated, in particular simultaneously, in a fourth switching state, so that, for example, in the fourth switching state, the temperature control fluid is fed by means of two pumps, in particular simultaneously. In particular, in the fourth switching state it can be provided that: the first connection is in fluid connection with only the third connection, in particular with respect to the connection, within the valve device, in particular within the valve device housing, the second connection is in fluid connection with only the eighth connection, in particular with respect to the connection, within the valve device, in particular with respect to the connection, only the first connection, the fourth connection is in fluid connection with only the sixth connection, in particular with respect to the connection, within the valve device, in particular with respect to the connection, only the seventh connection, in particular with respect to the connection, within the valve device, in particular with respect to the connection, only the fifth connection, in particular with respect to the connection, and the eighth connection is in fluid connection with only the second connection, in particular with respect to the connection, within the valve device.

For example, it is provided that in the third switching state the pumps are activated, in particular simultaneously, and thus are operated, so that in the third switching state the temperature control fluid is preferably fed, in particular simultaneously, by means of two pumps. Furthermore, it is provided, for example, that in the fourth switching state, only one of the pumps is activated and therefore operated, so that, for example, in the case of a pump, the temperature control fluid is fed only by means of one of the pumps, or in the fourth switching state, for example, the pumps are simultaneously activated, so that, for example, in the fourth switching state, the temperature control fluid is fed simultaneously by means of two pumps.

In order to be able to achieve a particularly satisfactory temperature regulation, it is provided in a further embodiment of the invention that in the fourth switching state, the third line is arranged downstream of the second line, the fourth line is arranged downstream of the third line and the first line is arranged downstream of the fourth line. In other words, since in the fourth switching state the second line, the third line, the fourth line and the first line are connected to each other in flow connection, in the fourth switching state the tempering fluid circulates through or past these four lines, in particular when or when the tempering fluid is conveyed simultaneously by means of at least one pump or by means of two pumps. On the way of the temperature-regulating fluid through these four lines, the temperature-regulating fluid flows, for example, first through the second line, then through the third line, then through the fourth line and then through the first line and then through the second line again, whereby particularly advantageous temperature regulation can be achieved.

A further embodiment is characterized in that the valve device can be switched, in particular discontinuously, between a first switching state, a second switching state and a fifth switching state. In the fifth switching state, the third line, the fourth line and the first line are fluidically connected to one another by the valve device and are thus fluidically connected to one another in series, whereby the third line, the fourth line and the first line form a sixth overall line. In the fifth switching state, no fluid connection of the second line to the sixth bus line through the valve device takes place, so that the second line is fluidly decoupled from the sixth bus line at least within the valve device or within the valve device housing.

In particular in the fourth switching state, the pumps are connected to one another in series in terms of flow technology. Furthermore, it is conceivable that in the fifth switching state the pumps are connected in series with each other. In particular, it is conceivable that in the fifth switching state only one of the pumps is activated and therefore operated, so that in the fifth switching state, for example, the tempering fluid is fed in the pump by means of only one of the pumps, or that in the fifth switching state both pumps are activated at the same time, so that in the fifth switching state, for example, the tempering fluid is fed by means of both pumps at the same time. In particular, provision is made that in the fifth switching state the temperature-regulating fluid does not flow through the second line and/or that in the fifth switching state the temperature-regulating fluid is actively conveyed through the second line without the aid of a pump device.

In particular, in a fifth switching state, provision can be made for: the first interface is in fluidic connection with the sixth interface, in particular with respect to the interface, the second interface is in fluidic connection with the eighth interface, in particular with respect to the interface, the fifth interface is in fluidic connection with the seventh interface, in particular with respect to the interface, the sixth interface is in fluidic connection with the first interface, in particular with respect to the interface, the seventh interface is in fluidic connection with the fifth interface, in particular with respect to the interface, and the eighth interface is in fluidic connection with the second interface, in particular with respect to the interface, whereas for example the third interface is in fluidic separation with the or all other interfaces, in the valve device and in particular within the valve device housing, and for example the fourth interface is in fluidic separation with the or all other interfaces within the valve device or within the valve device housing. In other words, for example, it is provided that in the fifth switching state, the valve device element fluidically separates the third port and the fourth port from one another and from the other remaining ports within the valve device housing, so that the second line is fluidically separated from the other lines within the valve device. This allows an advantageous and desired temperature control.

In a further particularly advantageous embodiment of the invention, the valve device can be switched, in particular discontinuously, between a first switching state, a second switching state and a sixth switching state. In a sixth switching state, the second line, the first line, the fourth line and the third line are fluidly connected to each other by the valve arrangement and thereby connected in series with each other. Further, it is provided that in the sixth switching state, the first line is disposed downstream of the second line, the fourth line is disposed downstream of the first line and the third line is disposed downstream of the fourth line. For example, it is thus provided that in the sixth switching state the temperature-regulating fluid circulates through or past four lines, in particular when the temperature-regulating fluid is simultaneously fed by means of at least one pump or by means of two pumps. It is thus conceivable that in the sixth switching state only one of the pumps is activated and therefore operated, so that in the sixth switching state, for example, the tempering fluid is delivered in the pump by means of only one of the pumps, or in the sixth switching state both pumps are activated at the same time, so that in the sixth switching state the tempering fluid is delivered at the same time, for example by means of both pumps. In the sixth switching state, the temperature control fluid thus flows, for example, first through the second line, then through the first line, then through the fourth line, then through the third line and then through the second line again, whereby particularly advantageous temperature control can be achieved.

In particular, in the sixth switching state, provision can be made for: the first interface is in the valve device, in particular with respect to the interface being in fluid connection with the seventh interface only, the second interface is in the valve device, in particular with respect to the interface being in fluid connection with the fourth interface only, the third interface is in the valve device, in particular with respect to the interface being in fluid connection with the fifth interface only, the fourth interface is in the valve device, in particular with respect to the interface being in fluid connection with the second interface only, the fifth interface is in the valve device, in particular with respect to the interface being in fluid connection with the eighth interface only, the seventh interface is in the valve device, in particular with respect to the interface being in fluid connection with the first interface only, and the eighth interface is in the valve device, in particular with respect to the interface being in fluid connection with the sixth interface only. In particular in the sixth switching state, the pumps are connected to one another in series in terms of flow technology. In particular in the fifth switching state the pumps are connected in series with each other.

Finally, it has proven to be particularly advantageous if the valve device can be switched, in particular discontinuously, between the first switching state, the second switching state and the seventh switching state. In a seventh switching state, the first port is fluidically connected within the valve device at least or with respect to the port only to the seventh port, such that the temperature-regulating fluid flowing through the first port can be fed to the seventh port only with respect to the or all other ports, the second port is fluidically connected within the valve device at least or with respect to the port only to the eighth port, such that the temperature-regulating fluid flowing through the second port can be fed to the second port with respect to the or all other ports only from the eighth port, the third port is fluidically connected within the valve device at least or with respect to the port only to the fifth port, such that the temperature-regulating fluid flowing through the third port is fed to the or all other ports only from the fifth port, that is to say that the temperature-regulating fluid flowing through the fourth port is only able to be supplied to the sixth port with respect to the or all other ports, and that the fourth port is at least or with respect to the ports is only fluidically connected to the sixth port within the valve device such that the temperature-regulating fluid flowing through the fourth port is only able to be supplied to the sixth port with respect to the or all other ports, and that the fifth port is at least or with respect to the ports is only fluidically connected to the third port and the seventh port such that the temperature-regulating fluid flowing through the fifth port is only partly able to be supplied to the seventh port with respect to the or all other ports and partly to the third port, and that the sixth port is only fluidically connected within the valve device with respect to the ports with respect to the fourth port and the eighth port such that the temperature-regulating fluid flowing through the sixth port is only from the eighth port and the fourth port with respect to the or all other ports, that is, the temperature control fluid from the eighth port and the fourth port only can be supplied to the sixth port with respect to the or all other ports, the seventh port being in fluid connection with the fifth port and the first port only with respect to the ports within the valve device, such that the temperature control fluid flowing through the seventh port can be supplied to the seventh port with respect to the or all other ports only from the fifth port and the first port, and the eighth port being in fluid connection with at least or with respect to the ports only with respect to the sixth port and the second port within the valve device, such that the temperature control fluid flowing through the eighth port can be supplied only partially to the sixth port with respect to the or all other ports and partially to the second port. Particularly advantageous temperature regulation can be achieved thereby.

For example, in a seventh switching state, the pumps are connected in parallel with each other. For example, in the seventh switching state, the temperature-regulating fluid is supplied, in particular simultaneously, by means of two pumps, so that, for example, in the seventh switching state, the two pumps are activated, in particular simultaneously, and thus operate. For example, in a seventh switching state, the temperature-regulating fluid is supplied, in particular simultaneously, by means of two pumps.

A second aspect of the invention relates to a motor vehicle, preferably configured as a motor vehicle, in particular as a passenger car, having a temperature control device according to the first aspect of the invention. Advantages and advantageous embodiments of the temperature control device according to the invention can be regarded as advantages and advantageous embodiments of the motor vehicle according to the invention and vice versa.

Furthermore, a method for operating a valve device according to the invention is disclosed, the advantages and advantageous embodiments of a temperature control device according to the invention being regarded as advantages and advantageous embodiments of a method according to the invention.

It can be seen in general that the valve device is embodied, for example, as a five-position eight-way reversing valve/directional valve (8/5-Wegeventil) or as a five-position eight-way distributor valve (8/5-Schaltventil), since the valve device has eight ports, for example, in particular, and can be switched, for example, between a first switching state, a second switching state, a third switching state, a fourth switching state and a fifth switching state. Furthermore, it is conceivable, for example, for the valve device to be embodied as a six-position eight-way dispensing valve, since, for example, in particular, the valve device has eight ports and can be switched, for example, between a first, a second, a third, a fourth, a fifth and a sixth switching state or between a first, a second, a third, a fourth, a fifth and a seventh switching state. It is also conceivable for the valve device to be configured as a seven-position eight-way dispensing valve, since the valve device has, for example, in particular exactly eight ports and can be switched between a first, a second, a third, a fourth, a fifth, a sixth and a seventh switching state. In this way, particularly advantageous temperature regulation can be achieved in a particularly satisfactory manner and in a cost, weight and installation space-friendly manner.

Drawings

Further details of the invention are set forth in the following description of the preferred embodiments, taken in conjunction with the accompanying drawings. The drawings are as follows:

fig. 1 shows a schematic illustration of a first embodiment of a thermostat device for a motor vehicle, wherein fig. 1 shows a first switching state of a valve device of the thermostat device;

fig. 2 shows a schematic view of the temperature regulating device, wherein the valve device is in a second switching state;

fig. 3 shows a schematic view of the thermostat device, wherein the valve device is in a third switching state;

fig. 4 shows a schematic view of the temperature control device, wherein a fourth switching state and a fifth switching state of the valve device are shown in fig. 4;

fig. 5 shows a schematic view of a thermostat device, wherein the valve device is in a sixth switching state;

fig. 6 shows a schematic view of the temperature regulating device, wherein the valve device is in a seventh switching state; and

fig. 7 shows a schematic view of a second embodiment of a temperature regulating device.

Detailed Description

In the drawings, identical or functionally identical elements are provided with the same reference numerals.

Fig. 1 shows a schematic illustration of a first embodiment of a temperature control device 1 for a motor vehicle, preferably in the form of a motor vehicle, in particular a passenger car. The motor vehicle has an interior, also referred to as a passenger compartment or passenger compartment, in which a person, such as a driver of the motor vehicle, can rest during driving of the motor vehicle. The temperature control device 1 has a valve device 2, which is also referred to as a switching valve/distribution valve or is designed as a switching valve/distribution valve, which is explained in more detail below. The temperature control device 1 furthermore has a temperature control circuit 3 through which a temperature control fluid can flow. Preferably the temperature-regulating fluid is liquid and therefore liquid. For example, the temperature-regulating fluid may comprise at least water. In the embodiment shown in the figures, the valve device 2 has exactly eight ports A1, A2, A3, A4, A5, A6, A7 and A8. The valve device 2 has a valve device housing 4 and a valve device element 5, which can be accommodated at least partially in the valve device housing 4. In particular, the valve device element 5 can be moved in particular translationally and/or rotationally relative to the valve device housing 4. As will be explained in more detail below, the valve device 2 can be switched, in particular discontinuously, between at least or exactly five switching states, in particular between at least or exactly six switching states and in particular between at least or exactly seven switching states. In this connection, it is conceivable in particular for the valve device element 5 to be movable, in particular discontinuously, relative to the valve device housing 4, in particular translationally and/or rotationally, between respective switching positions, also referred to as positions, which give rise to respective switching states. In particular, the valve device 2 can be discontinuously switched between the switching states, so that the valve device element 5 can be discontinuously moved between the switching positions, which bring about the switching states, relative to the valve device housing 4. Thus, for example, it is conceivable that the valve device element 5 can be moved discontinuously relative to the valve device housing 4 between at least or exactly five, in particular at least or exactly six and in particular at least or exactly seven switching positions, i.e. between a first switching position which brings about a first switching state, a second switching position which brings about a second switching state, a third switching position which brings about a third switching state, a fourth switching position which brings about a fourth switching state and a fifth switching position which brings about a fifth switching state, and for example between a sixth switching position and a seventh switching position, wherein for example the sixth switching position brings about a sixth switching state and the seventh switching position brings about a seventh switching state. In the respective switching state and thus in the respective switching position, a respective one of the ports A1 to 8 can be in fluid connection with a respective other one of the ports A1 to 8 within the valve device 2 and here within the valve device housing 4. This is to be understood as meaning that, when in the respective switching state one connection is in fluid connection with the other connection within the valve device 2, in particular within the valve device housing 4, the valve device element 5 releases/opens the fluid connection between the one connection and the other connection within the valve device housing 4, so that the valve device element 5 is located in a position in which a fluid connection is established, i.e. between the one connection and the other connection, within the valve device housing 4. Furthermore, it is conceivable, for example, that in at least one further switching position the one connection is fluidically separated from the other connection by means of the valve device 2 or within the valve device 2. This is to be understood as meaning that the one connection is fluidically separated from the other connection within the valve device housing 4 by means of the valve device element 5. In other words, the valve device element 5 fluidly separates the one interface from the other interface within the valve device housing 4, such that a fluid connection between the one interface and the other interface within the valve device housing 4 is interrupted or canceled by the valve device element 5.

The tempering circuit 3 has a first line 6 which is in fluid connection with the connections A1 and A2, i.e. to the connections A1 and A2 and thus via the connections A1 and A2, in particular outside the valve device housing 4, with the valve device housing 4. The first circuit 6 has a first branch ZW1 and a second branch ZW2, which can be flown through by a temperature-regulating fluid. As can be seen from fig. 1, branches ZW1 and ZW2 are connected in parallel to each other in terms of flow technology. At least or exactly one drive machine 7 is provided in the first branch ZW1, by means of which the motor vehicle can be driven. The drive machine 7 is in particular designed as an electric motor, by means of which the motor vehicle can be driven electrically, in particular purely electrically. The drive machine 7 can be tempered, i.e. cooled and/or heated, by means of a tempering fluid flowing through the branch ZW 1. In the second branch ZW2, a first heat exchanger 8 is provided, which is configured, for example, as a water-cooled condenser (WCC).

For example, in its fully manufactured state, the motor vehicle has at least two or exactly two axles which are arranged one after the other in the longitudinal direction of the vehicle and thus in succession. The respective axles comprise, for example, at least two or exactly two wheels, also referred to as vehicle wheels, which are arranged on opposite sides of the motor vehicle in the transverse direction of the vehicle. The respective wheel is a respective ground contact element by means of which the motor vehicle can be supported downwards in the vertical direction of the vehicle or on a roadway. The first axle is a front axle, the wheels of which are also referred to as front wheels. The second axle is a rear axle that is disposed behind the front axle in the vehicle longitudinal direction. The wheels of the rear axle are also referred to as rear wheels. For example, the drive machine 7 is assigned to the rear axle, so that the rear wheels can be driven electrically, in particular purely electrically, by means of the drive machine 7, whereby the motor vehicle can be driven electrically, in particular purely electrically.

In the embodiment shown in the figures, a device 9 which is arranged in addition to the drive machine 7 and which is located, for example, outside with respect to the drive machine 7 and which can be tempered, i.e. cooled and/or heated, by means of a tempering fluid flowing through the branch ZW1 is optionally arranged in the branch ZW 1. The device 9 may have at least one electrical or electronic computing device or be configured as an electrical or electronic computing device, which may be, for example, a Battery Management System (BMS). Alternatively or additionally, the device 9 may be or comprise power electronics, by means of which, for example, the drive machine 7 can be supplied with electrical energy. In the embodiment shown in fig. 1, the device 9 is arranged, for example, upstream of the drive machine 7 in the flow direction of the tempering fluid of the through-flow branch ZW1, alternatively the device 9 may be arranged downstream of the drive machine 7.

The temperature control device 1 may have an air conditioning device, not shown in the figures, by means of which the air to be supplied or to be supplied to the interior of the motor vehicle can be controlled in temperature, i.e. cooled and/or heated. For example, the air conditioning system can be operated in and therefore as a compression cooler, by means of which the air to be supplied to the interior space can be cooled or cooled. Alternatively or additionally, it is conceivable that the air conditioning device can be operated in a heat pump mode and therefore as a heat pump, by means of which the air to be supplied to the interior space can be heated. The interior space can be cooled by cooling the air to be delivered to the interior space and heated by heating the air to be delivered to the interior space, thereby heating the interior space. The air conditioning system has a refrigerant circuit, which is also referred to as a refrigeration circuit or refrigeration circuit, which is provided in addition to the tempering circuit 3 and through which a refrigerant, which is provided in particular in addition to the tempering fluid and is different from the tempering fluid, flows. As can be seen from fig. 1, the temperature control device 1 can have a first pump 10 for delivering a temperature control fluid and a second pump 11 for delivering a temperature control fluid, the pumps 10 and 11 being arranged in the temperature control circuit 3. Pump 11 is provided in addition to pump 10 and vice versa. The air conditioning system has a refrigerant compressor, which is also referred to simply as a compressor or compressor and is configured, for example, as an electric refrigerant compressor, which is provided in addition to the pumps 10 and 11 and is arranged in the refrigerant circuit. With the aid of which refrigerant can be conveyed through a refrigerant circuit and compressed. A second heat exchanger 12, also called a cooler, is arranged in the refrigerant circuit in addition to the heat exchanger 8, which second heat exchanger is also arranged in the tempering circuit 3 as will be explained in more detail below. The cooler is thus arranged both in the refrigerant circuit and also in the tempering circuit 3, so that the cooler (heat exchanger 12) can be flown through by the tempering fluid as well as by the refrigerant. Heat can be exchanged or transferred between the refrigerant and the temperature-regulating fluid by means of the cooler, in particular such that heat can be transferred from the temperature-regulating fluid to/from the refrigerant by means of the cooler, thereby cooling the temperature-regulating fluid. In particular in heat pump operation, the heat transferred through the cooler, i.e. transferred to or at the refrigerant, can be used to heat the air to be delivered to the interior space, thus heating the interior space. For example, the air conditioning system has a vaporizer/evaporator for vaporizing/evaporating the refrigerant, which is provided in the refrigerant circuit, in addition to the cooler and also in addition to the heat exchanger 8. In particular, the heat exchanger 8 is a condenser for condensing the refrigerant. In other words, provision is made for: the first heat exchanger 8, which is arranged in the second branch ZW2 and can thus be traversed by the temperature-regulating fluid flowing through the second branch ZW2, is also arranged in the refrigerant circuit, which can be traversed by the refrigerant and can thus also be traversed by the refrigerant, so that heat can be exchanged or transferred between the temperature-regulating fluid and the refrigerant by means of the first heat exchanger 8. The first heat exchanger 8 serves in particular or as a cooling device for cooling the refrigerant, in particular as a condenser for condensing the refrigerant. Thus, for example, heat can be transferred from the refrigerant to the temperature-regulating fluid via the first heat exchanger 8. Furthermore, heat can be transferred from the drive machine 7 and from the device 9 to the temperature-regulating fluid, for example. The heat transferred to the temperature-regulating fluid can be used, in particular, in the operation of the heat pump to heat the interior, in particular by transferring the heat transferred to the temperature-regulating fluid, in particular via the cooler (second heat exchanger 12), to the refrigerant and thus to the refrigerant. The heat transferred into the refrigerant can then be used to heat the air to be delivered to the interior space and thus heat the interior space.

As can be seen from fig. 1, a pump 10 is arranged in the first line 6, so that a temperature-regulating fluid can be conveyed through the first line 6 by means of the pump 10. In this case, the pump 10 is connected not only in series with the branch ZW1 but also in series with the branch ZW2, the pump 10 being arranged upstream of the branches ZW1 and ZW2 and downstream of the interface A2.

Furthermore, in the exemplary embodiment shown in fig. 1, an electrical heating element 13 is provided in the line 6, by means of which the temperature-regulating fluid flowing through the line 6 can be heated using electrical energy. As can be seen from fig. 1, the electric heating element 13 is connected not only in series with the branch ZW1 but also in series with the branch ZW2, the heating element 13 being arranged downstream of the branches ZW1 and ZW2 and upstream of the interface A1 in the embodiment shown in fig. 1. For example, the heating element 13 is an electric continuous heater (EDH). The heating element 13 is optionally provided, for example, and can therefore be dispensed with, for example.

Furthermore, the temperature control circuit 3 has a second line 14 which is in fluid connection with the connections A3 and A4, i.e. to the connections A3 and A4 and thus via the connections A3 and A4 with the valve device 2, in particular with the valve device housing 4. An electrical energy store 15, which is also referred to simply as an energy store, is arranged in the second line 14. The electric energy store 15 can thus be conditioned, i.e. heated and/or cooled, by means of the temperature-regulating fluid of the flow-through line 14. The electrical energy can be stored by means of the energy store 15, i.e. in particular electrochemically in the energy store 15. For example, the drive machine 7 can be supplied with electrical energy stored in the energy store 15, so that the drive machine 7 can be operated in motor operation and thus as an electric motor, by means of which the motor vehicle can be driven electrically, in particular purely electrically.

The temperature control circuit 3 furthermore has a third line 16 in which a second heat exchanger 12 (cooler) which is also arranged in the refrigerant circuit and is thus also permeable to the refrigerant and is arranged in addition to the first heat exchanger 8, is arranged, through which heat can be exchanged or transferred between the temperature control fluid and the refrigerant, and which can be flowed through by the temperature control fluid flowing through the third line 16. Furthermore, the pump 11 is arranged in the line 16, in particular in such a way that, in the embodiment shown in fig. 1, the pump 11 is arranged upstream of the heat exchanger 12 in the flow direction of the tempering fluid through the line 16. Thus, a temperature-regulating fluid can be conveyed through the line 16 by means of the pump 11. The pump 10 is a pump that is provided in addition to the pump 11 and is located outside with respect to the pump 11, and the pump 11 is a pump that is provided in addition to the pump 10 and is located outside with respect to the pump 10. Accordingly, the heat exchanger 12 is a heat exchanger that is provided in addition to the heat exchanger 8 and is located outside with respect to the heat exchanger 8, and the heat exchanger 8 is a heat exchanger that is provided in addition to the heat exchanger 12 and is located outside with respect to the heat exchanger 12. Pumps 10 and 11 are preferably designed as electric pumps, i.e. as electrically operable pumps.

In addition, the temperature control circuit 3 has a fourth line 17. In the embodiment shown in the figures, the tempering circuit 3 has exactly four lines, i.e. lines 6, 14, 16 and 17. It can be seen that the line 16 is in fluid connection with the connections A5 and A6, i.e. to the connections A5 and A6 and thus with the valve device 2, in particular with the valve device housing 4, via the connections A5 and A6. The fourth line 17 is in fluid connection with the connections A7 and A8, i.e. to the connections A7 and A8 and thus via the connections A7 and A8 with the valve device 2, in particular with the valve device housing 4. An ambient air cooler 18, also referred to as a radiator, which is also referred to as a high-temperature cooler (HT cooler) or is configured as a high-temperature cooler (HT cooler), is arranged in the fourth line 17. The ambient air cooler 18, which is also referred to simply as a cooler, can be flown through by the temperature-regulating fluid of the flow-through line 17 and can be circulated by ambient air, i.e. air which is generally located in the environment of the motor vehicle, so that the temperature-regulating fluid of the flow-through radiator can be cooled by the radiator by means of the ambient air of the flow-through radiator, in particular in such a way that heat can be transferred or transferred from the temperature-regulating fluid of the flow-through radiator to the ambient air of the flow-through radiator by means of the radiator.

In order to be able to regulate the flow of the temperature-regulating fluid through the first heat exchanger 8 in a particularly satisfactory manner, a proportional valve 19, which is provided in addition to the valve device 2, is provided in the second branch ZW2, the proportional valve 19 being a valve, which is provided externally with respect to the valve device 2, in addition to the valve device 2. Thus, the valve device 2 is, for example, a valve which is located externally with respect to the proportional valve 19 and is provided in addition to the proportional valve 19.

A first switching state is now shown in fig. 1. It can thus be provided that, in the method for operating the temperature control device 1, the temperature control device 1 is operated when the valve device 2 is in the first switching state and thus, for example, the valve device element 5 is in the first switching position. For example, in the first switching state, pumps 10 and 11 are simultaneously in operation, so that the tempering fluid is simultaneously fed, in particular actively fed, by means of pumps 10 and 11. In the first switching state, the first line 6 and the fourth line 17 pass through the valve device 2 and are here fluidically connected to one another within the valve device 2, i.e. within the valve device housing 4, and are here fluidically connected in series to one another, whereby the first line 6 and the fourth line 17 form a first total line. In the first switching state, the third line 16 and the second line 14 are fluidically connected to one another by the valve device 2, i.e. within the valve device 2 and here within the valve device housing 4, and thus are fluidically connected to one another in series, whereby the third line 16 and the second line 14 form a second overall line. In the first switching state, no fluid connection of the first bus line to the second bus line via the valve device 2 takes place, so that in the first switching state the first bus line is not in fluid connection with the second bus line via the valve device 2.

In fig. 2, the valve device 2 is in the second switching state, so that, for example, the valve device element 5 is in the second switching position. Thus, for example, in the method, the temperature control device 1 is operated in a first switching state of the valve device 2 and in particular is operated in a second switching state of the valve device 2 after or before this time. In other words, for example, in the method, the temperature control device 1 is operated such that the valve device 2 is in the first switching state during a first period of time and the valve device 2 is in the second switching state during a second period of time, wherein, for example, the second period of time is adjacent to or preceding the first period of time in time. In the second switching state, the first line 6, the third line 16 and the second line 14 are fluidly connected to each other by the valve device 2, i.e. within the valve device 2, and are thereby connected in series with each other, whereby the first line 6, the third line 16 and the second line 14 form a third total line. In this case, no fluid connection of the third main line to the fourth line 17 via the valve device 2 takes place, so that the fourth line 17 is not in fluid connection with the third main line via the valve device 2. In the second switching state, the pumps 10 and 11 are therefore connected to one another in flow technology. In the second switching state, for example, the pumps 10 and 11 are activated simultaneously, so that in the second switching state, for example, the tempering fluid is fed simultaneously by means of the two pumps 10 and 11. It is conceivable that in the second switching state the tempering fluid does not flow through the fourth line 17 and/or that in the second switching state the tempering fluid is actively transported through the fourth line 17 without the aid of a pump.

Thus, in the first switching state, for example, the tempering fluid flows first through the first line 6, flows from the line 6 into the line 17 via the interfaces A1 and A7, passes through the line 17, flows from the line 17 into the line 6 again via the interfaces A8 and A2 and then passes through the line 6 again, and the tempering fluid flows, for example, first through the line 14, flows from the line 14 via the interfaces A4 and A6 and into the line 16 and flows from the line 16 via the interfaces A5 and A3 and flows again into the line 14 and then passes through the line 14 again.

In the second switching state, the temperature-regulating fluid flows, for example, first through line 6 and then flows from line 6 via interfaces A1 and A6 and into line 16 and then through line 16 and then flows from line 16 via interfaces A5 and A3 and into line 14 and then through line 14 and then flows from line 14 via interfaces A4 and A2 and into line 6 and then through line 6 again. If in the second switching state a temperature-regulating fluid flows through the line 17, for example in the second switching state the temperature-regulating fluid circulates through the line 17 and here via the interfaces A7 and A8.

Fig. 3 shows a third switching state of the valve device 2. In the third switching state, the second line 14 and the first line 6 are fluidically connected to one another by the valve device 2, i.e. within the valve device 2 or within the valve device housing 4, and are thus fluidically connected to one another in series, whereby the second line 14 and the first line 6 form a fourth overall line. In the third switching state, the third line 16 and the fourth line 17 are fluidically connected to one another by the valve device 2 and are thus fluidically connected to one another in series, whereby the third line 16 and the fourth line 17 form a fifth overall line. In the third switching state, no fluid connection of the fourth and fifth main lines through the valve device 2 takes place. In particular, it is conceivable that in the first switching state the tempering fluid is fed simultaneously by means of the two pumps 10 and 11. It is also conceivable that in the second switching state the tempering fluid is simultaneously fed by means of the two pumps 10 and 11 and thus actively. It is also conceivable that in the third switching state, the tempering fluid is simultaneously fed by means of the two pumps 10 and 11 and thus actively. In the third switching state, for example, the temperature-regulating fluid flows first through the first line 6 and then flows from the first line 6 via the interfaces A1 and A3 and into the second line 14 and then through the second line 14 and then flows again from the second line 14 via the interfaces A4 and A2 into the first line 6 and then through the first line 6 again. Furthermore, for example, in the third switching state, the tempering fluid flows first through the third line 16 and then flows from the third line 16 via the interfaces A5 and A7 into the fourth line 17 and then through the fourth line 17 and then flows from the fourth line 17 into the third line 16 via the interfaces A8 and A6 and again through the third line 16. The first switching state is denoted by Z1 in fig. 1, the second switching state by Z2 in fig. 2, and the third switching state by Z3 in fig. 3.

Fig. 4 shows not only the fourth switching state Z4 but also the fifth switching state Z5. In the fourth switching state Z4, the second line 14, the third line 16, the fourth line 17 and the first line 6 are fluidically connected to one another by the valve device 2, i.e. within the valve device 2, and are thus fluidically connected to one another in series, so that the pumps 10 and 11 are coupled to one another in series. In particular, it is provided that in the fourth switching state Z4 the pumps 10 and 11 are operated simultaneously, i.e. activated, so that in the fourth switching state Z4 the tempering fluid is fed simultaneously by means of the two pumps 10 and 11. In the fourth switching state Z4, the lines 6, 14, 16 and 17 are connected to one another in a flow-wise manner by means of the valve device 2 in such a way that the third line 16 is arranged downstream of the second line 14, the fourth line 17 is arranged downstream of the third line 16 and the first line 6 is arranged downstream of the fourth line 17. Thus, for example, the tempering fluid flows firstly through the first line 6 and then flows from the line 6 via the interfaces A1 and A3 and into the line 14, then through the line 14 and then flows from the line 14 via the interfaces A4 and A6 and into the line 16 and then through the line 16 and then flows from the line 16 via the interfaces A5 and A7 and into the line 17 and then through the line 17 and then from the line 17 again into the line 6 and then through the line 6 again via the interfaces A8 and A2.

In the fifth switching state Z5, the third line 16, the fourth line 17 and the first line 6 are fluidically connected to one another by the valve device 2 and are thus fluidically connected to one another in series, whereby the third line 16, the fourth line 17 and the first line 6 form a sixth overall line. In this case, no fluid connection of the second line 14 to the sixth line via the valve device 2 takes place. In particular, in the fifth switching state Z5, the pumps 10 and 11 are connected to one another in series in terms of flow technology. In the fourth switching state Z4, the pumps 10 and 11 are coupled to one another in flow connection. In the fourth switching state Z4, pumps 10 and 11 are preferably activated simultaneously. In the fifth switching state Z5, it can be provided that the pumps 10 and 11 are activated simultaneously, so that it is preferably provided that in the fifth switching state Z5 the tempering fluid is fed simultaneously by means of the two pumps 10 and 11. In particular, it is conceivable that in the fifth switching state Z5 the tempering fluid does not flow through the line 14 and/or that the tempering fluid is actively conveyed through the line 14 without the aid of a pump. In particular, for example, in the fifth switching state, it is provided that the temperature-regulating fluid flows first through the first line 6 and then flows from the line 6 via the interfaces A1 and A6 into the line 16 and then flows through the line 16 and then flows from the line 16 into the line 17 and then flows through the line 17 and then flows again from the line 17 via the interfaces A8 and A2 into the first line 6 and then flows through the line 6 again.

Fig. 5 shows a sixth switching state Z6. In the sixth switching state, the second line 14, the first line 6, the fourth line 17 and the third line 16 are fluidically connected to one another by the valve device 2 and are thus fluidically connected to one another in series, so that the first line 6 is arranged downstream of the second line 14, the fourth line 17 is arranged downstream of the first line 6 and the third line 16 is arranged downstream of the fourth line 17. In particular, for example, provision is made for the temperature-regulating fluid to be fed simultaneously by means of the two pumps 10 and 11 in the sixth switching state Z6. In the sixth switching state Z6, the pumps 10 and 11 are connected to each other in flow connection. As can be seen from fig. 5, in the sixth switching state Z6, for example, the temperature control fluid flows first through the first line 6 and then flows from the line 6 via the interfaces A1 and A7 into the line 17 and then through the line 17 and then from the line 17 into the line 16 via the interfaces A8 and A6 and then through the line 16 and then from the line 16 via the interfaces A5 and A3 into the line 14 and then through the line 14 and then from the line 14 via the interfaces A4 and A2 into the line 6 and then through the line 6 again.

Finally, fig. 6 shows a seventh switching state Z7. In the seventh switching state Z7, the first line 6 and the fourth line 17 are fluidly connected to each other by the valve device 2 and thereby connected in series with each other, whereby the first line 6 and the fourth line 17 form a first total line. In particular, provision is made that, in the seventh switching state, the first interface A1 is fluidically connected to the seventh interface A7 only with respect to at least or with respect to the interfaces A1-8 within the valve device 2, such that the temperature control fluid flowing through the first interface A1 is fluidically connected to the seventh interface A7 only with respect to the or all other interfaces A1-8 within the valve device 2, such that the temperature control fluid flowing through the second interface A2 is fluidically connected to the or all other interfaces only with respect to the eighth interface A8, such that the temperature control fluid flowing through the or all other interfaces A2 is supplied to the or only from the eighth interface A8, such that the temperature control fluid flowing through the third interface A3 is fluidically connected to the or only with respect to the fifth interface A5 within the valve device 2, such that the temperature control fluid flowing through the or all other interfaces A3 is supplied to the fifth interface A5 only is fluidically connected to the valve device at least partially to the or with respect to the seventh interface A2 via the fourth interface A3, such that the temperature control fluid flowing through the or all other interfaces A3 is supplied to the fourth interface A5 within the valve device 5 via the at least or with respect to the fourth interface A4 within the valve device 2, such that the temperature control fluid flowing through the or through the fourth interface A3 is supplied to the at least partially connected to the or with respect to the fourth interface A5 via the at least one interface A5 and the fourth interface A3 is fluidically connected to the at least partially controllable to the seventh interface A5 via the at least one interface A5 via the or with respect to the fourth interface A5 via the interface A5, so that the temperature-regulating fluid flowing through the sixth interface A6 is supplied to the sixth interface A6 with respect to the or all other interfaces only from the eighth interface A8 and the fourth interface A4, i.e. with respect to the or all other interfaces only from the eighth interface A8 and the fourth interface A4, the seventh interface A7 is in fluid connection with respect to the interface only with the fifth interface A5 and the first interface A1 within the valve device, so that the temperature-regulating fluid flowing through the seventh interface A7 is supplied to the seventh interface A7 with respect to the or all other interfaces only from the fifth interface A5 and the first interface A1, i.e. with respect to the or all other interfaces only from the fifth interface A5 and the first interface A1, and the eighth interface A8 is at least or with respect to the interface only in fluid connection with the sixth interface A6 and the second interface A2 within the valve device 2, so that the temperature-regulating fluid flowing through the eighth interface A8 is supplied to the sixth interface A6 with respect to the or all other interfaces only in part and is supplied to the second interface A2.

In the seventh switching state, for example, the temperature-regulating fluid flows first through the first line 6 and then via the interfaces A1 and A7 into the fourth line 17 and through the fourth line 17, and then flows from the line 17 via the interfaces A8 and A6 into the line 16 and from the line 17 again via the interfaces A8 and A2 into the line 6. In addition, the tempering fluid flows through line 16 and then flows via interfaces A5 and A3 into line 14 and via interfaces A5 and A7 into line 17. The temperature-regulating fluid flowing through line 14 flows from line 14 via interfaces A4 and A6 and into line 16 and then through line 16. It can be seen that the temperature control fluid flowing through the connection A5 and flowing out of the line 16 via the connection A5 flows from the connection A5 within the valve device housing 4 with respect to the connections A1 to 8 only to the connections A3 and A7 and thus supplies the connections A3 and A7 with temperature control fluid. It can also be seen that in the seventh switching state Z7, the interface A3 receives the temperature control fluid flowing through the interface A3 from the interface A5 only with respect to the interfaces A1 to 8, so that in the seventh switching state Z7 the temperature control fluid flowing through the interface A3 comes from the interface A5 only with respect to the interfaces A1 to 8, so that within the valve device housing 4 the temperature control fluid is supplied to the interface A3 only via the interface A5 or from the interface A5 with respect to the interfaces A1 to 8. In the switching state Z7, the interface A7 receives the temperature-regulating fluid flowing through the interface A7 from the interfaces A5 and A1 only in relation to the interfaces A1 to 8, so that, for example, in the seventh switching state Z7 the temperature-regulating fluid flowing through the seventh interface A7 comes from the interfaces A5 and A1 only in relation to the interfaces A1 to 8. In other words, in the seventh switching state Z7, the connection A7 is supplied with the temperature-regulating fluid within the valve device housing 4 with respect to the connections A1 to 8 only via the connections A5 and A1 or from the connections A5 and A1. Furthermore, it can be seen from fig. 6 that in the seventh switching state Z7, the first interface A1 transfers the temperature-regulating fluid flowing through the first interface A1 to only the interface A7 with respect to the interfaces A1 to 8. In other words, within the valve device housing 4, the temperature-regulating fluid flowing through the connection A1 is guided in the seventh switching state Z7 only to the connection A7 with respect to the connections A1 to 8. In the seventh switching state Z7, the temperature-regulating fluid flowing through the eighth connection A8 is guided within the valve device housing 4 with respect to the connections A1 to 8 only to the connections A6 and A2, i.e. is supplied to the connections A6 and A2, in particular within the valve device housing 4. In the seventh switching state Z7, the sixth connection A6 is supplied with a temperature-regulating fluid within the valve device housing 4 with respect to the connections A1 to 8 only by or via the connections A8 and A4, so that in the seventh switching state Z7 the temperature-regulating fluid flowing through the connection A6 is guided with respect to the connections A1 to 8 only from the connections A8 and A4, i.e. within the valve device housing 4 only from the connections A8 and A4 to the connection A6. In the seventh switching state Z7, the connection A2 receives the temperature-regulating fluid flowing through the connection A2 only from the connection A8 with respect to the connections A1 to 8, so that in the seventh switching state Z7, the second connection A2 is supplied with the temperature-regulating fluid only from or through the connection A8 within the valve device housing 4 with respect to the connections A1 to 8. In other words, in the seventh switching state Z7, the temperature-regulating fluid flowing through the second interface A2 comes only from the interface A8 with respect to the interfaces A1 to 8. Finally, it can be seen from fig. 6 that in the seventh switching state Z7, the fourth port A4 transfers the temperature-regulating fluid flowing through the fourth port A4 within the valve device housing 4 to only the sixth port A6 with respect to the ports A1 to 8. In other words, in the seventh switching state Z7, the temperature-regulating fluid flowing through the interface A4 within the valve device housing 4 is guided with respect to the interfaces A1 to 8 only to the interface A6, i.e. is transferred to the interface A6 or is supplied to the interface A6.

In an embodiment not shown in the figures, it can be provided that a second ambient air cooler, which is arranged outside with respect to the ambient air cooler and is arranged in addition to the heat exchangers 8 and 12 and to the ambient air cooler 18, is arranged in the second branch ZW2, which second ambient air cooler can thus be circulated by ambient air and can be flown through by a temperature control fluid flowing through the second branch ZW 2. The temperature-regulating fluid flowing through the second branch ZW2 can thus be cooled by means of the second ambient air cooler, in particular by means of a heat transfer in which heat is transferred by the second ambient air cooler from the temperature-regulating fluid flowing through the second ambient air cooler to the ambient air circulating the second ambient air cooler.

Fig. 7 shows a second embodiment of the temperature regulating device 1. In principle, it is conceivable that the device 9 present in the first embodiment is an additional drive machine, in particular an additional electric motor, which is associated with the front axle, for example, so that the front wheels can be driven electrically, in particular purely electrically, by means of the additional drive machine, in particular by means of the additional electric motor.

In the second embodiment shown in fig. 7, the first line 6 has a third branch ZW3 which is connected in parallel to the first branch ZW1 in terms of flow and to the second branch ZW2 in terms of flow, so that the branches ZW1, ZW2 and ZW3 are connected in parallel to one another. In this case, pump 10 is connected in series with branches ZW1, ZW2 and ZW3, and an optionally provided electrical heating element 13 is connected in series with branches ZW1, ZW2 and ZW 3. In the second embodiment, a second drive machine 20, which is arranged in addition to the drive machine 7 and can be tempered, i.e. cooled and/or heated, by means of a tempering fluid flowing through the third branch Z3, is arranged in the third branch ZW 3. For example, the second drive machine 20 is assigned to the front axle, so that the front wheels can be driven by means of the second drive machine 20. In particular, the drive machine 20 can be designed as a second electric machine, by means of which the front wheels can be driven electrically, in particular purely electrically. The drive machine 20 is preferably a machine that is arranged externally to the drive machine 7 and is located externally to the drive machine 7, and accordingly it is preferably provided that the drive machine 7 is a machine that is located externally to the drive machine 20 and is arranged externally to the drive machine 20. In particular, the drives 7 and 19 can be constructed as high-pressure components. Preferably, the energy store 15 is constructed as a high-pressure component, so that the energy store 15 is also referred to as a high-pressure store (HVS).

As can be seen from fig. 7, in particular in the case of the omission of the heating element 13, an electrical heating element 21 can be provided in the third line 16, by means of which the temperature-regulating fluid of the flow-through line 16 can be heated using electrical energy. In particular, the heating element 21 may be arranged upstream or downstream of the second heat exchanger 12 and upstream or downstream of the pump 11 in the flow direction of the tempering fluid of the flow-through line 16.

List of reference numerals

1. Temperature regulating fluid

2. Valve device

3. Temperature regulating circuit

4. Valve device housing

5. Valve device element

6. First circuit

7. Driving machine

8. First heat exchanger

9. Device and method for controlling the same

10 pump

11 pump

12 second heat exchanger

13 electric heating element

14 second line

15 electric accumulator

16 third line

17 fourth line

18 ambient air cooler

19 proportion valve

20 driving machine

21 electric heating element

22 second ambient air cooler

A1 first interface

A2 second interface

A3 third interface

A4 fourth interface

A5 fifth interface

A6 sixth interface

A7 seventh interface

A8 eighth interface

Z1 first switching state

Z2 second switching state

Z3 third switching State

Z4 fourth switching State

Z5 fifth switching State

Z6 sixth switching State

Z7 seventh switching State

ZW1 first branch

ZW2 second branch

ZW3 third branch

Claims

1. A thermostat device (1) for a motor vehicle, comprising a valve device (2) with eight interfaces (A1-8) and a thermostat circuit (3) through which a thermostat fluid can flow, the thermostat circuit comprising:

-a first line (6) fluidly connected with a first one of the interfaces (A1-8) and fluidly connected with a second one of the interfaces (A1-8), the first line (6) comprising:

at least one first branch (ZW 1) in which at least one drive (7) which can be tempered by means of a tempering fluid flowing through the first branch (ZW 1) is arranged, at least one second branch (ZW 2) which is connected in parallel to the first branch (ZW 1) and in which a first heat exchanger (8) which can be traversed by a tempering fluid flowing through the second branch (ZW 2) is arranged, which is also arranged in a refrigerant circuit which is arranged in addition to the tempering circuit (3) and can be traversed by a refrigerant and through which heat can be exchanged between the tempering fluid and the refrigerant,

a second line (14) which is in fluid connection with a third one of the interfaces (A1-8) and with a fourth one of the interfaces (A1-8), in which second line an electrical energy store (15) is arranged which is to be tempered by means of a tempering fluid flowing through the second line (14), the electrical energy store (15) being used for storing electrical energy,

A third line (16) which is in fluid connection with a fifth one of the connections (A1-8) and with a sixth one of the connections (A1-8), in which a second heat exchanger (12) which can be flowed through by a temperature-regulating fluid flowing through the third line (16) is arranged, which is also arranged in the refrigerant circuit and thus also can be flowed through by a refrigerant and which is arranged in addition to the first heat exchanger (8) and by means of which heat can be exchanged between the temperature-regulating fluid and the refrigerant,

-a fourth line (17) in fluid connection with a seventh one of the interfaces (A1-8) and with an eighth one of the interfaces (A1-8), in which line an ambient air cooler (18) is arranged, by means of which ambient air cooler ambient air flowing through the ambient air cooler (18) can be cooled by means of ambient air circulating the ambient air cooler (18).

2. Temperature regulating device (1) according to claim 1, characterized in that a proportional valve (19) which is arranged in addition to the valve device (2) and is located externally with respect to the valve device (2) is arranged in the second branch (ZW 2) upstream or downstream of the first heat exchanger (8).

3. Temperature regulating device (1) according to claim 1 or 2, characterized in that in the second branch (ZW 2) a second ambient air cooler (22) is provided in addition to the ambient air cooler (18) and in addition to the heat exchanger (8, 12), by means of which the temperature regulating fluid flowing through the second branch (ZW 2) and thus through the second ambient air cooler (22) and the first heat exchanger (8) can be cooled by means of the ambient air circulating the second ambient air cooler (22).

4. Temperature regulating device (1) according to any one of the preceding claims, characterized in that an electrical heating element (13) for heating the temperature regulating fluid flowing through the first circuit (6) is provided in the first circuit (6).

5. Temperature regulating device (1) according to any one of the preceding claims, characterized in that an electrical heating element (21) for heating the temperature regulating fluid flowing through the third line (16) is provided in the third line (16).

6. Temperature regulating device (1) according to any one of the preceding claims, characterized in that a pump (10) for conveying a temperature regulating fluid is provided in the first line (6).

7. Temperature regulating device (1) according to any one of the preceding claims, characterized in that a pump (11) for conveying a temperature regulating fluid is provided in the third line (16).

8. A thermostat device (1) according to claim 6 or 7, characterized in that the pump (10, 11) is configured as an electric pump.

9. The temperature regulating device (1) according to any one of the preceding claims, wherein the valve device (2) is switchable, in particular discontinuously, between:

-a first switching state (Z1) in which:

the first line (6) and the fourth line (17) are fluidically connected to each other by means of the valve device (2) and are thus connected to each other in series and form a first total line,

the third line (16) and the second line (14) are fluidically connected to each other by means of the valve device (2) and are thus connected to each other in series and form a second overall line, and

no fluid connection of the first bus line to the second bus line via the valve device (2) takes place, and

-a second switching state (Z2) in which the first line (6), the third line (16) and the second line (14) are fluidly connected to each other by the valve device (2) and thereby are connected in series with each other and form a third total line, wherein no fluid connection of the third total line to the fourth line (17) by the valve device (2) takes place.

10. Temperature regulating device (1) according to claim 9, characterized in that the valve device (2) is switchable, in particular discontinuously, between a first switching state (Z1), a second switching state (Z2) and a third switching state (Z3), in which:

The second line (14) and the first line (6) are fluidly connected to each other by means of the valve device (2) and thereby connected in series with each other and form a fourth total line,

the third line (16) and the fourth line (17) are fluidically connected to each other by means of the valve device (2) and are thus connected to each other in series and form a fifth overall line, and

no fluid connection of the fourth and fifth main lines through the valve device (2) takes place.

11. Temperature regulating device (1) according to claim 9 or 10, characterized in that the valve device (2) is switchable, in particular discontinuously, between a first switching state (Z1), a second switching state (Z2) and a fourth switching state (Z4), in which the second line (14), the third line (16), the fourth line (17) and the first line (6) are fluidly connected to one another by the valve device (2) and are thereby connected in series with one another.

12. Temperature regulating device (1) according to claim 11, characterized in that in the fourth switching state (Z4) a third line (16) is arranged downstream of the second line (14), a fourth line (17) is arranged downstream of the third line (16) and the first line (6) is arranged downstream of the fourth line (17).

13. The thermostat device (1) according to any one of claims 9 to 12, characterized in that the valve device (2) is switchable, in particular discontinuously, between a first switching state (Z1), a second switching state (Z2) and a fifth switching state (Z5), in which: the third line (16), the fourth line (17) and the first line (6) are fluidically connected to each other via the valve device (2) and thus are connected to each other in series and form a sixth total line, and no fluidic connection of the second line (14) to the sixth total line via the valve device (2) takes place.

14. The thermostat device (1) according to any one of claims 9 to 13, characterized in that the valve device (2) is switchable, in particular discontinuously, between a first switching state (Z1), a second switching state (Z2) and a sixth switching state (Z6), in which: the second line (14), the first line (6), the fourth line (17) and the third line (16) are fluidly connected to each other and thus to each other in series by means of the valve device (2), and the first line (6) is arranged downstream of the second line (14), the fourth line (17) is arranged downstream of the first line (6) and the third line (16) is arranged downstream of the fourth line (17).

15. Motor vehicle with a temperature regulating device (1) according to any of the preceding claims.