DE102022109111A1 - Temperature control device for a motor vehicle and motor vehicle - Google Patents

Abstract

The invention relates to a temperature control device (1) for a motor vehicle, with a valve device (2) which has eight connections (A1-8), and with a temperature control circuit (3) through which a temperature control fluid can flow, which is fluidly connected to a first of the connections ( A1-8) and fluidly connected to a second of the connections (A1-8), first strand (6). The first branch (6) comprises at least one first branch (ZW1), in which at least one drive machine (7) can be tempered by means of the temperature control fluid flowing through the first branch (ZW1) is arranged, and at least one connected in parallel to the first branch (ZW1), second branch (ZW2), in which a first heat exchanger (which can be flowed through by the temperature control fluid flowing through the second branch (ZW2), also in a refrigerant circuit which is provided in addition to the temperature control circuit (3) and through which a refrigerant can flow, and which can therefore also be flowed through by the refrigerant ( 8) is arranged, via which heat can be exchanged between the temperature control fluid and the refrigerant.

Description

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, with such a temperature control device.

The DE 10 2017 220 376 A1 A cooling system for a motor vehicle can be seen as known, with an electrical energy storage device for driving the motor vehicle. Furthermore, the reveals DE 10 2019 132 688 A1 a heat management system for a motor vehicle, with an engine chiller circuit in which a chiller, an electrical energy storage and an electric motor are arranged. In addition, from the US 3,336,319 B2 a thermal management system for a vehicle is known.

The object of the present invention is to create a temperature control device for a motor vehicle and a motor vehicle so that a particularly advantageous temperature control can be realized.

This object is achieved according to the invention by a temperature control device with the features of patent claim 1 and by a motor vehicle with the features of patent 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 designed as a passenger car. This means that the motor vehicle, which is preferably designed as a motor vehicle, in particular as a passenger car, has the temperature control device in its completely manufactured state. In particular, for example, by means of the temperature control device, a particularly advantageous temperature control, that is, cooling and/or heating, of the interior of the motor vehicle, also referred to as the passenger cell or passenger compartment, can be realized, in the interior of which people, such as the driver of the motor vehicle, can stay while the motor vehicle is driving . For this purpose, the temperature control device has a valve device which, in particular, has eight connections. In addition, the temperature control device has a temperature control circuit through which a preferably liquid temperature control fluid can flow. The temperature control fluid is preferably a liquid and therefore liquid. For example, the temperature control fluid can comprise at least water. The temperature control circuit has a first strand which is fluidly connected to a first of the connections and fluidly to a second of the connections. This means that the first strand is connected to the first connection and to the second connection and is therefore fluidly connected to the valve device via the first connection and the second connection.

The valve device has, for example, a valve device housing and a valve device element, which can be moved relative to the valve device housing, for example, into several positions, in particular rotationally and/or translationally. For example, the valve device element can be arranged at least partially in the valve device housing. In this case, for example, the first strand is fluidly connected to the valve device housing via the first connection and the second connection.

The first strand has at least a first branch, which is therefore a first part of the first strand. In the first branch, at least or exactly one drive machine that can be tempered, that is to be cooled and/or heated, by means of the temperature control fluid flowing through the first branch is arranged, by means of which the motor vehicle can be driven. For example, the temperature control fluid flowing through the first strand or the first branch can flow through at least part of the drive machine, whereby the drive machine can be tempered, that is, cooled and / or heated, in particular by a heat exchange between the temperature control 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 a motor mode and thus as an electric motor, by means of which the motor vehicle can be driven, in particular purely electrically. Very preferably, the drive machine, in particular the electrical machine, is a high-voltage component whose electrical voltage, in particular electrical operating or nominal voltage, is preferably greater than 50 volts, in particular greater than 60 volts, and most preferably is several 100 volts. This makes it possible to achieve particularly high electrical power for, in particular electrical, driving of the motor vehicle.

The first strand also has at least one second branch, which is therefore a second part of the first strand. The second branch is fluidically connected in parallel to the first branch. A first heat exchanger is arranged in the second branch, so that the temperature control fluid flowing through the second branch can flow through the first heat exchanger. The first heat exchanger is also provided in addition to the temperature control circuit and of one Refrigerant circuit through which refrigerant can flow is arranged, so that the refrigerant can also flow through the first heat exchanger. Via the first heat exchanger, heat can be exchanged or transferred between the temperature control fluid flowing through the first heat exchanger and the refrigerant flowing through the first heat exchanger. Preferably, the refrigerant is provided in addition to the temperature control fluid and is a different fluid from the temperature control fluid. Furthermore, it is preferably provided that the refrigerant circuit is fluidly separated from the temperature control circuit. Preferably, the refrigerant circuit and the refrigerant are components of an air conditioning system of the motor vehicle, also known as an air conditioning system, wherein the air conditioning system can be part of the temperature control device. Since the first heat exchanger is arranged both in the second branch and in the refrigerant circuit, the first heat exchanger is also part of the air conditioning device. The air conditioning device is designed to control the temperature of air to be supplied to the interior of the motor vehicle and also referred to as interior air. By tempering, in particular cooling and/or heating, the air to be supplied to the interior, the interior can be tempered, that is, 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, wherein the refrigerant can be cooled by means of the cooling device, in particular in that heat can be transferred from the refrigerant to or to the temperature control fluid flowing through the first heat exchanger via the first heat exchanger or is transferred. In particular, the first heat exchanger can be a capacitor or can be operated as a capacitor, wherein the refrigerant can be condensed by means of the condenser, in particular by cooling the refrigerant, that is in particular by transferring heat from the refrigerant to or onto the condenser Temperature control fluid flowing through the second branch can be transferred or is transferred.

The air conditioning device can have a refrigerant compressor arranged in the refrigerant circuit and simply referred to as a compressor or compressor, by means of which the refrigerant can be conveyed through the refrigerant circuit and compressed.

The temperature control circuit has a second strand, which is fluidly connected to a third of the connections and fluidly to a fourth of the connections. This means that the second strand is connected to the third connection and to the fourth connection and is therefore fluidly connected to the valve device, in particular to the valve device housing, via the third connection and the fourth connection. Arranged in the second strand is an electrical energy storage device to be tempered, that is to say cooled and/or heated, by means of the temperature control fluid flowing through the second strand, for the, in particular electrochemical, storage of electrical energy. Preferably, the electrical energy storage is a high-voltage component whose electrical voltage, in particular electrical operating or nominal voltage, is preferably greater than 50 volts, in particular greater than 60 volts, and most preferably is several 100 volts. In particular, it is conceivable that the drive machine, in particular the electrical machine, can be supplied with the electrical energy stored in the energy storage, whereby the electrical machine can be operated in motor mode.

The temperature control circuit also has a third strand, which is fluidly connected to a fifth of the connections and to a sixth of the connections. This means that the third strand is connected to the fifth connection and the sixth connection and is therefore fluidly connected to the valve device, in particular to the valve device housing, via the fifth connection and the sixth connection. A second heat exchanger through which the temperature control fluid flowing through the third strand can flow is arranged in the third strand 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 flowed through by the refrigerant. Via the second heat exchanger, heat can be transferred or exchanged between the temperature control fluid flowing through the second heat exchanger and the refrigerant flowing through the second heat exchanger. For example, the second heat exchanger is a chiller or the second heat exchanger is also referred to as a chiller, so that, for example, heat can be transferred from the temperature control fluid to the refrigerant via the second heat exchanger, whereby the temperature control fluid can be cooled.

For example, the air conditioning device has an evaporator provided in addition to the first heat exchanger and in addition to the second heat exchanger for evaporating the refrigerant, the evaporator being arranged in the refrigerant circuit. For example, air, in particular the air to be supplied to the interior, can flow around the evaporator. Via the evaporator, heat can flow from the evaporator and, for example, from the inside Air to be supplied to the room is transferred to the refrigerant, whereby the air flowing around the evaporator, which, for example, can be supplied to the interior or is introduced into the interior, is to be cooled or is cooled. It can be seen that, for example, heat can be transferred to or to the refrigerant via the second heat exchanger and optionally via the evaporator, in particular in that heat can be transferred from the temperature control fluid to or on the refrigerant via the second heat exchanger and, if necessary, in that from The air flowing around the evaporator can transfer heat via the evaporator to or onto the refrigerant. In particular, heat can be transferred from the energy storage to the temperature control fluid and subsequently from the temperature control fluid via the second heat exchanger to the refrigerant, so that, for example, by means of the temperature control device, the heat transferred or transferred from the temperature control fluid, in particular via the second heat exchanger, to the refrigerant and, for example, optionally from Air flowing around the evaporator via the evaporator or transferred to the refrigerant can be used, for example, to heat the interior. This allows the interior to be heated particularly energy-efficiently.

For example, the air conditioning device can be operated in a heat pump mode and thus as a heat pump. In particular in the heat pump operation and thus by means of the heat pump, the air to be supplied to the interior can be heated by means of heat which is contained in the refrigerant and is or has been transferred to or on the refrigerant, in particular via the second heat exchanger and/or the evaporator. Very preferably, the air conditioning device can, in particular, be operated in a compression refrigeration machine operation and thus as a compression refrigeration machine, by means of which the air to be supplied to the interior can be cooled, in particular in the manner described via the evaporator. Furthermore, heat can be transferred to or to the temperature control fluid in that heat is transferred from the drive machine to the temperature control fluid and, for example, subsequently from the temperature control fluid, in particular via the second heat exchanger, to the refrigerant, so that, for example, also from the drive machine and / or the Also referred to as a high-voltage storage device or designed as a high-voltage storage device, heat provided or available can be used to heat the interior, in particular in heat pump operation. For example, heat that is transferred from the refrigerant to the temperature control fluid via the first heat exchanger can be used to heat the energy storage and/or the drive machine, in particular as needed, which is particularly advantageous at low ambient or outside temperatures.

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

The temperature control circuit also has a fourth strand, which is a fourth part of the temperature control circuit. The fourth strand is fluidly connected to a seventh of the connections and fluidly to an eighth of the connections. This means that the fourth strand is connected to the seventh connection and to the eighth connection and is therefore fluidly connected to the valve device, in particular fluidly to the valve device housing, via the seventh connection and the eighth connection. An ambient air cooler, also referred to as a radiator, is arranged in the fourth strand, via which the temperature control fluid flowing through the ambient air cooler can be cooled by means of ambient air that flows around the ambient air cooler. In particular, when the motor vehicle is moving forward, the ambient air mentioned, that is to say the airstream formed by the ambient air, can flow around the ambient air cooler, whereby the temperature control fluid can be advantageously cooled via the ambient air cooler. In particular, ambient air is to be understood as meaning air which is arranged overall in an environment of the motor vehicle. By means of the ambient air cooler, which is also referred to as a high-temperature cooler or is designed as a high-temperature cooler (HT cooler), the temperature control fluid and thus, for example, via the temperature control fluid, the electrical energy storage and/or the drive machine can be effectively cooled, so that a particularly advantageous and, in particular, needs-based temperature control can be achieved is. By using the valve device designed, for example, as a switching valve, which can be switched into different switching states, for example, in particular using electrical energy, the temperature control fluid can be guided or directed particularly as required, whereby the number of actuators can be kept low. As a result, a particularly advantageous temperature control can be achieved in a particularly weight-, cost- and space-efficient manner. For example, by switching the valve device between the switching states, the valve device element can be moved between the respective positions. In other words, for example, the valve device element can be moved into the respective positions by the Valve device is switched to the respective switching states.

In order to be able to realize a particularly advantageous temperature control in a particularly needs-based manner, it is provided in one embodiment of the invention that a proportional valve, which is provided in addition to the valve device and is external to the valve device, is arranged in the second branch upstream or downstream of the first heat exchanger, whereby the Valve device is external to the proportional valve, that is, an additional component external to the proportional valve.

The proportional valve can 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 or further than in the first valve state, so that, for example, the proportional valve has a flow cross section through which the temperature control fluid flowing through the second branch can flow, which is larger 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, that is fluidically blocked, by means of the proportional valve, and therefore 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, a supply to the first Heat exchanger with the temperature control fluid via the proportional valve or a flow of the temperature control fluid through the first heat exchanger does not occur. The second valve state is, for example, an open state in which the proportional valve releases the second branch, in particular releases it 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. Thus, in the second valve state, the heat exchanger can be supplied with the temperature control fluid via the proportional valve or in the second valve state, the proportional valve allows a flow of the temperature control fluid through the first heat exchanger or the proportional valve enables a flow of the temperature control fluid through the first heat exchanger. The proportional valve can be switched between the valve states, i.e. into the valve states, and can also be brought into several 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 causes the first valve state and into a second switching position which causes the second valve state. Furthermore, the proportional valve element can be moved relative to the proportional valve housing into a plurality of intermediate positions which bring about the respective intermediate states, in particular at least substantially continuously and/or continuously, the respective intermediate position being 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 thereby releases it more strongly or further than in the first valve state. Thus, for example, in the respective intermediate state, the flow cross section is larger than in the first valve state and smaller than in the second valve state, the flow cross section in the respective intermediate state having a respective value, and the respective values being different from one another and in particular greater than zero. In particular, for example, the proportional valve element can be moved at least substantially continuously into the switching positions and into the intermediate positions. The proportional valve thus enables an adjustment of different volume and/or mass flows of the temperature control fluid flowing through the second branch and thus the first heat exchanger and in particular larger than zero, in particular in that the proportional valve or the proportional valve element is in the intermediate states or the intermediate positions and the second valve state or the second switching position can be switched or moved, and in particular the proportional valve enables a fluidic blocking of the second branch, in particular in that the proportional valve or the proportional valve element can be switched or moved into the first valve state or into the first switching position. It is therefore particularly conceivable that in the respective intermediate position or in the respective intermediate state the flow cross section is larger than zero and larger than in the first valve state or the first switching position and smaller than 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 switching positions and into the intermediate positions, the flow cross section can be at least substantially continuously and / or continuously varied, that is, changeable, in particular between a minimum value that is, for example, zero, in particular in the first valve state, and a opposite one the minimum value and greater than zero Maximum value, especially in the second valve state. The proportional valve is therefore a throttle valve or can be operated as a throttle valve, since in the respective intermediate state the heat exchanger can or is flowed through by the temperature control fluid flowing through the second branch, but is throttled compared to the second valve state. In other words, in the respective intermediate state, the temperature control fluid can or will flow through the heat exchanger in a throttled manner compared to the second valve state, whereby a particularly needs-based supply of the first heat exchanger with the temperature control fluid via the proportional valve (throttle valve) or a particularly needs-based flow through the first heat exchanger can be realized is. In particular, for example, the proportional valve is designed as a 2/2 throttle valve. In other words, a needs-based supply or flow through the first heat exchanger with or from the temperature control fluid can be realized, in particular adjustable, by the proportional valve, in particular an advantageous throttling of the first heat exchanger, that is, a flow of the temperature control fluid through the first heat exchanger, can be adjusted as required.

A further embodiment is characterized in that a second ambient air cooler is arranged in the second branch, provided in addition to the ambient air cooler and in addition to the heat exchangers, via which the temperature control fluid flowing through the second branch and thereby the second ambient air cooler and the first heat exchanger by means of the second The ambient air flowing around the ambient air cooler is to be cooled. For example, the second ambient air cooler is arranged upstream of the first heat exchanger and in particular downstream of the first connection. In particular, it can be provided that the proportional valve is arranged downstream of the first heat exchanger and in particular upstream of the second connection. The second ambient air cooler is, for example, a low-temperature cooler or is also referred to as a low-temperature cooler (NTK). By using the optionally provided second ambient air cooler, a particularly advantageous temperature control, in particular cooling, of the temperature control fluid can be achieved. In particular, by using the proportional valve, a particularly advantageous throttling of the second ambient air cooler or of the temperature control fluid flowing through the second ambient air cooler can also be achieved.

A further embodiment provides that an electrical heating element, that is to say an electrically operable heating element, is arranged in the first strand for heating the temperature control fluid flowing through the first strand. This means that the temperature control fluid can be heated effectively and efficiently by means of the electrical heating element using electrical energy, so that, particularly in heat pump operation, an advantageous temperature control, in particular heating, of the interior can be achieved.

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

In a further, particularly advantageous embodiment of the invention, an electrical heating element is arranged in the third strand for heating the temperature control fluid flowing through the third strand, whereby a particularly effective and efficient heating of the temperature control fluid and, for example, as a result, a particularly effective and efficient temperature control, in particular heating , of the interior can be displayed.

In order to be able to provide a particularly needs-based flow of the temperature control fluid and thus a particularly needs-based temperature control, in particular of the interior, it is provided in a further embodiment of the invention that a pump is arranged in the first line, by means of which the temperature control fluid can be conveyed.

It has also proven to be particularly advantageous if a pump for conveying the tempering fluid is arranged in the third line, whereby the tempering fluid can be conveyed particularly in line with requirements. This allows a particularly advantageous temperature control to be achieved.

In order to be able to convey the temperature control fluid in a particularly needs-based and energy-efficient manner, it is provided in a further embodiment of the invention that 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. is trained. When we talk about pumps below, this refers to the first pump and the second pump, unless otherwise stated.

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

In the first switching state, the first strand and the fourth strand are fluidly connected to one another via the valve device, that is to say within the valve device, and are therefore connected in series to one another, whereby the first strand and the fourth strand form a first overall strand. For this purpose, the first connection and the seventh connection are fluidly connected to one another within the valve device, and the eighth connection and the second connection are fluidly connected to one another within the valve device.

In the first switching state, the third strand and the second strand are fluidly connected to one another via the valve device, that is to say within the valve device, and are therefore connected in series to one another, whereby the third strand and the second strand form a second overall strand. In the first switching state, there is no fluidic connection between the first overall strand and the second overall strand via the valve device, so that the first overall strand and the second overall strand are not fluidly connected to one another via the valve device. As a result, the pumps are, so to speak, connected in parallel to one another, that is, the pumps can work in parallel or independently of one another, so that, for example, the first pump supplies the temperature control fluid in relation to the total strands only through the first overall strand and the second pump pumps the temperature control fluid in relation to the total strands only through the second The entire strand is conveyed through.

For example, it is thus provided that in the first switching state the first connection within the valve device, in particular in relation to the connections exclusively, with the seventh connection, the second connection within the valve device, in particular in relation to the connections exclusively with the eighth connection, the third connection within the valve device, in particular in relation to the connections exclusively, with the fifth connection, the fourth connection within the valve device, in particular in relation to the connections exclusively, with the sixth connection, the fifth connection within the valve device, in particular in relation to the connections exclusively , with the third connection, the sixth connection within the valve device, in particular in relation to the connections exclusively, with the fourth connection, the seventh connection within the valve device, in particular in relation to the connections exclusively, with the first connection, and the eighth connection within the Valve device, in particular with respect to the connections exclusively, is fluidly connected to the second connection.

In the second switching state, the first strand, the third strand and the second strand are fluidly connected to one another via the valve device, that is to say within the valve device, in particular within the valve device housing, and are therefore fluidically connected in series to one another, whereby the first strand, the third strand and the second strand form a third overall strand, with a fluidic connection of the third overall strand to the fourth strand via the valve device being omitted. This means that the third overall strand is not fluidly connected to the fourth strand via the valve device. Thus, for example, in the second switching state, the pumps are connected in series to one another in terms of fluid flow. In particular, it is provided that in the first switching state the temperature control fluid flows through the first overall strand and the second overall strand. In particular, it can be provided that in the first switching state the pumps are activated, in particular simultaneously, and thus run, so that, for example, in the first switching state the temperature control fluid is conveyed, in particular simultaneously, by means of both pumps.

For example, it is provided that in the second switching state the temperature control fluid flows through the third overall line. In particular, it is conceivable that in the second switching state the pumps are activated, in particular simultaneously, and thus run, so that, for example, in the second switching state the temperature control fluid is conveyed, in particular simultaneously, by means of both 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 there is no flow of the temperature control fluid through the fourth line. In particular, it is conceivable that in the second switching state there is no active delivery of the temperature control fluid through the fourth line.

In particular, it can be provided that in the second switching state the first connection within the valve device, in particular within the valve device housing, in particular in relation to the or all connections exclusively, with the sixth connection, the second connection within the valve device, in particular in relation to the or all connections exclusively, with the fourth connection, the third connection within the valve device, in particular in relation to the Connections exclusively, with the fifth connection, the fourth connection within the valve device, in particular in relation to the connections exclusively, with the second connection, the fifth connection within the valve device, in particular in relation to the connections exclusively, with the third connection, and the sixth connection within the valve device, in particular in relation to the connections exclusively, is fluidly connected to the first connection, wherein the seventh connection within the valve device, in particular in relation to the connections exclusively, is connected to the eighth connection, and the eighth connection within the valve device, in particular in relation to the connections are exclusively fluidly connected to the seventh connection, or the seventh connection is fluidically separated from the or all other connections within the valve device and the eighth connection is fluidly separated from the or all other connections within the valve device. In this way, a particularly needs-based guidance or line of the temperature control fluid through the strands can be set, so that a particularly advantageous temperature control can be achieved.

In order to be able to implement a particularly advantageous and needs-based temperature control, it is provided in a further embodiment of the invention that the valve device can be switched, in particular discretely, between the first switching state, the second switching state and a third switching state. In the third switching state, the second strand and the first strand are fluidly connected to one another via the valve device and are therefore fluidically connected in series to one another, whereby the second strand and the first strand form a fourth overall strand. In the third switching state, the third strand and the fourth strand are fluidly connected to one another via the valve device, that is to say within the valve device or the valve device housing, and are therefore fluidically connected in series to one another, whereby the third strand and the fourth strand form a fifth overall strand. In the third switching state, there is no fluidic connection between the fourth overall line and the fifth overall line via the valve device, so that the fourth overall line is not fluidly connected to the fifth overall line via the valve device. In particular, it can be provided that the fourth overall strand and the fifth overall strand are fluidically separated from one another. As a result, for example, the pumps are connected in parallel to one another, which means that the pumps can work in parallel, in particular in such a way that the temperature control fluid is conveyed simultaneously by means of both pumps. For example, both pumps are active at the same time, meaning both pumps run at the same time. Thus, for example, the first pump delivers the temperature control fluid based on the fifth overall line and the sixth overall line exclusively through the fifth overall line, and the second pump, for example, delivers the temperature control fluid based on the fifth overall line and the sixth overall line exclusively through the sixth overall line.

In the present disclosure, ordinal words such as "first", "second", "third", etc. do not necessarily indicate an order or a necessarily intended set of elements to which the ordinal words refer, such as when of a fourth element What we are talking about is that a first element, a second element and a third element do not necessarily have to be provided, but the ordinal number words are used in particular to be able to conceptually distinguish terms to which the ordinal number words refer from one another, in order to be able to refer to them To be able to clearly refer to terms.

For example, the following can be provided in the third switching state: The first connection is fluidly connected to the third connection within the valve device, in particular exclusively in relation to the or all connections, and the second connection is within the valve device, in particular exclusively in relation to the connections the fourth connection is fluidly connected to the first connection within the valve device, in particular exclusively in relation to the connections, the fourth connection is fluidly connected to the second connection within the valve device, in particular exclusively in relation to the connections, the fifth port is fluidly connected to the seventh port within the valve device, in particular exclusively in relation to the ports, the sixth port is fluidly connected to the eighth port within the valve device, in particular exclusively in relation to the ports, the seventh port is within the Valve device, in particular in relation to the connections exclusively, is fluidly connected to the fifth connection, and the eighth connection is fluidly connected within the valve device, in particular in relation to the connections exclusively, to the sixth connection.

In order to be able to realize a particularly advantageous guidance of the temperature control fluid and thus a particularly advantageous temperature control, it is provided in a further embodiment of the invention that the valve device, in particular discreetly, between can be switched between the first switching state, the second switching state and a fourth switching state. In the fourth switching state, the second strand, the third strand, the fourth strand and the first strand are fluidly connected to one another via the valve device and are therefore connected in series to one another. As a result, the pumps in particular are connected in series to one another. For example, the pumps are active in the fourth switching state, in particular simultaneously, so that, for example, in the fourth switching state the temperature control fluid is conveyed by means of both pumps, in particular simultaneously. In particular, the following can be provided in the fourth switching state: The first connection is fluidically connected within the valve device, in particular within the valve device housing, in particular in relation to the connections exclusively, to the third connection, the second connection is within the valve device, in particular in relation to the Connections exclusively, fluidly connected to the eighth connection, the third connection is fluidically connected within the valve device, in particular in relation to the connections exclusively, to the first connection, the fourth connection is within the valve device, in particular in relation to the connections exclusively, to the sixth Connection is fluidly connected, the fifth connection is fluidically connected within the valve device, in particular with respect to the connections exclusively, to the seventh connection, the sixth connection is fluidically connected within the valve device, in particular with respect to the connections exclusively, to the fourth connection, the seventh The connection is fluidly connected to the fifth connection within the valve device, in particular exclusively in relation to the connections, and the eighth connection is fluidly connected to the second connection within the valve device, in particular exclusively in relation to the connections,

For example, it is provided that in the third switching state the pumps are activated, in particular simultaneously, and thus run, so that preferably in the third switching state the temperature control fluid is conveyed, in particular simultaneously, by means of both pumps. Furthermore, it is provided, for example, that in the fourth switching state relative to the pumps, only one of the pumps is activated and thus running, so that, for example, the temperature control fluid is conveyed relative to the pumps by means of only one of the pumps, or, for example, the pumps are in the fourth switching state activated at the same time, so that, for example, in the fourth switching state, the temperature control fluid is conveyed simultaneously using both pumps.

In order to be able to realize a particularly needs-based temperature control, it is provided in a further embodiment of the invention that in the fourth switching state the third strand is arranged downstream of the second strand, the fourth strand is arranged downstream of the third strand and the first strand is arranged downstream of the fourth strand. In other words, since in the fourth switching state the second strand, the third strand, the fourth strand and the first strand are fluidically connected in series to one another, in the fourth switching state the temperature control fluid circulates through or over the four strands, in particular during or when the temperature control fluid is conveyed simultaneously by at least one of the pumps or by both pumps. On its way through the four strands, the temperature control fluid flows, for example, first through the second strand, then through the third strand, then through the fourth strand and then through the first strand and then again through the second strand, whereby a particularly advantageous temperature control can be achieved.

A further embodiment is characterized in that the valve device can be switched, in particular discretely, between the first switching state, the second switching state and a fifth switching state. In the fifth switching state, the third strand, the fourth strand and the first strand are fluidly connected to one another via the valve device and are therefore fluidically connected in series to one another, whereby the third strand, the fourth strand and the first strand form a sixth overall strand. In the fifth switching state, there is no fluidic connection between the second strand and the sixth overall strand via the valve device, so that the second strand is fluidically separated from the sixth overall strand at least within the valve device or within the valve device housing.

In particular, in the fourth switching state, the pumps are fluidically connected in series with one another. Furthermore, it is conceivable that in the fifth switching state the pumps are connected in series to one another. In particular, it is conceivable that in the fifth switching state in relation to the pumps only one of the pumps is activated and is therefore running, so that, for example, in the fifth switching state the temperature control fluid is conveyed in relation to the pumps by means of only one of the pumps, or is in the fifth switching state Both pumps are activated at the same time, so that, for example, in the fifth switching state, the temperature control fluid is conveyed simultaneously by means of both pumps. In particular, it is provided that in the fifth switching state the temperature control fluid does not flow through the second line and/or in the fifth switching state there is no flow by means of a pump active conveying of the temperature control fluid through the second line,

In particular, the following can be provided in the fifth switching state: the first connection is fluidly connected within the valve device, in particular exclusively with respect to the connections, to the sixth connection, the second connection is within the valve device, in particular exclusively with respect to the connections, with the eighth Connection is fluidly connected, the fifth connection is fluidically connected to the seventh connection within the valve device, in particular exclusively in relation to the connections, the sixth connection is fluidly connected to the first connection within the valve device, in particular exclusively in relation to the connections, the seventh The connection is fluidly connected to the fifth connection within the valve device, in particular exclusively in relation to the connections, and the eighth connection is fluidly connected to the second connection within the valve device, in particular exclusively in relation to the connections, while, for example, the third connection is inside the valve device and in particular within the valve device housing, is fluidically separated from the or all other connections, and while, for example, the fourth connection within the valve device or within the valve device housing is fluidly separated from the or all other connections. In other words, it is provided, for example, that in the fifth switching state the valve device element fluidly separates the third connection and the fourth connection within the valve device housing from each other and fluidly from the other, remaining connections, so that the second strand within the valve device is fluidically separated from the other strands is. This allows an advantageous and needs-based temperature control to be achieved.

In a further, particularly advantageous embodiment of the invention, the valve device can be switched, in particular discretely, between the first switching state, the second switching state and a sixth switching state. In the sixth switching state, the second strand, the first strand, the fourth strand and the third strand are fluidly connected to one another via the valve device and are therefore connected in series to one another. It is also provided that in the sixth switching state the first strand is arranged downstream of the second strand, the fourth strand is arranged downstream of the first strand and the third strand is arranged downstream of the fourth strand. Thus, for example, it is provided that in the sixth switching state the temperature control fluid circulates over or through the four strands, in particular during or when the temperature control fluid is conveyed by at least one of the pumps or by means of both pumps at the same time. It is therefore conceivable that in the sixth switching state in relation to the pumps only one of the pumps is activated and is therefore running, so that for example in the sixth switching state the temperature control fluid is conveyed in relation to the pumps by means of only one of the pumps, or is in the sixth switching state Both pumps are activated at the same time, so that in the sixth switching state the temperature control fluid is conveyed simultaneously by means of both pumps, for example. Thus, in the sixth switching state, the temperature control fluid flows, for example, first through the second strand, then through the first strand, then through the fourth strand, then through the third strand and then again through the second strand, whereby a particularly advantageous temperature control can be achieved.

In particular, the following can be provided in the sixth switching state: the first connection is fluidly connected within the valve device, in particular exclusively in relation to the connections, to the seventh connection, the second connection is within the valve device, in particular exclusively in relation to the connections, to the fourth Connection fluidly connected, the third connection is fluidically connected within the valve device, in particular exclusively with respect to the connections, to the fifth connection, the fourth connection is fluidly connected within the valve device, in particular exclusively with respect to the connections, to the second connection, the fifth The connection is fluidly connected to the third connection within the valve device, in particular exclusively in relation to the connections, the sixth connection is fluidly connected to the eighth connection within the valve device, in particular exclusively in relation to the connections, the seventh connection is within the valve device, in particular in relation to the connections exclusively, fluidly connected to the first connection, and the eighth connection is fluidly connected within the valve device, in particular in relation to the connections exclusively, to the sixth connection. In particular, in the sixth switching state, the pumps are fluidically connected in series with one another. In particular, in the fifth switching state, the pumps are connected in series to one another.

Finally, it has proven to be particularly advantageous if the valve device can be switched, in particular discretely, between the first switching state, the second switching state and a seventh switching state. In the seventh Switching state, the first connection within the valve device is fluidly connected at least or exclusively to the seventh connection in relation to the connections in such a way that the temperature control fluid flowing through the first connection can be fed exclusively to the seventh connection in relation to the or all other connections, the second connection within the valve device at least or in relation to the connections, fluidly connected to the eighth connection in such a way that the temperature control fluid flowing through the second connection comes exclusively from or from the eighth connection in relation to the or all other connections, and therefore the temperature control fluid in relation to the second connection or all others Connections can be supplied exclusively from the eighth connection, the third connection within the valve device is at least or fluidly connected to the fifth connection in relation to the connections in such a way that the temperature control fluid flowing through the third connection in relation to the or all other connections exclusively from or from the fifth Connection comes from, therefore the temperature control fluid can be supplied to the third connection exclusively from the fifth connection in relation to the or all other connections, the fourth connection within the valve device is fluidly connected at least or in relation to the connections exclusively to the sixth connection in such a way that the fourth connection The temperature control fluid flowing through can be supplied exclusively to the sixth connection in relation to the or all other connections, the fifth connection within the valve device is at least fluidly connected to the third connection and to the seventh connection in such a way that the temperature control fluid flowing through the fifth connection is related to which or all other connections can be fed exclusively partly to the seventh connection and partly to the third connection, the sixth connection within the valve device is fluidly connected in relation to the connections exclusively to the fourth connection and to the eighth connection in such a way that the temperature control fluid flowing through the sixth connection in relation to the or all other connections comes exclusively from or from the eighth connection and from or from the fourth connection, and therefore the temperature control fluid can be supplied to the sixth connection in relation to the or all other connections exclusively from the eighth connection and from the fourth connection, which The seventh connection within the valve device is fluidly connected in relation to the connections exclusively to the fifth connection and to the first connection in such a way that the temperature control fluid flowing through the seventh connection in relation to the or all other connections exclusively from or from the fifth connection and from or from the first Connection comes from, therefore the temperature control fluid can be supplied to the seventh connection in relation to the or all other connections exclusively from the fifth connection and from the first connection, and the eighth connection within the valve device in such a way at least or in relation to the connections exclusively with the sixth connection and with fluidly connected to the second connection, so that the temperature control fluid flowing through the eighth connection can only be fed partly to the sixth connection and partly to the second connection, based on the or all other connections. This allows a particularly advantageous temperature control to be achieved.

For example, in the seventh switching state, the pumps are connected in parallel to one another. For example, in the seventh switching state, the temperature control fluid is conveyed, in particular simultaneously, by means of both pumps, so that, for example, in the seventh switching state, both pumps are activated, in particular simultaneously, and thus run. For example, in the seventh switching state, the temperature control fluid is conveyed, in particular simultaneously, by means of both pumps.

A second aspect of the invention relates to a motor vehicle, preferably designed as a motor vehicle, in particular as a passenger car, which has a temperature control device according to the first aspect of the invention. Advantages and advantageous refinements of the temperature control device according to the invention are to be viewed as advantages and advantageous refinements of the motor vehicle according to the invention and vice versa.

Furthermore, a method for operating the valve device according to the invention is disclosed, whereby advantages and advantageous embodiments of the temperature control device according to the invention are to be viewed as advantages and advantageous embodiments of the method according to the invention.

Overall, it can be seen that, for example, the valve device is designed as an 8/5-way valve or as an 8/5-switching valve, since the valve device, for example, has, in particular precisely, the eight connections and, for example, precisely, between the first switching state, the second switching state, the third switching state, the fourth switching state and the fifth switching state can be switched. Furthermore, it is conceivable, for example, that the valve device is designed as an 8/6 switching valve, since the valve device has, for example, in particular precisely, the eight connections and can, for example, be switched between the first, second, third, fourth, fifth and sixth switching state or between the first, second, third, fourth, fifth and seventh switching states. Furthermore, it is conceivable that the valve device is designed as an 8/7 switching valve, since the valve device has, for example, in particular precisely, the eight connections and can be switched between the first, second, third, fourth, fifth, sixth and seventh switching states. A particularly advantageous temperature control can thus be presented in a manner that is particularly needs-based and is cost-, weight- and space-efficient.

• 1 eine schematische Darstellung einer ersten Ausführungsform einer Temperiereinrichtung für ein Kraftfahrzeug, wobei in 1 ein erster Schaltzustand einer Ventileinrichtung der Temperiereinrichtung gezeigt ist;
• 2 eine schematische Darstellung der Temperiereinrichtung mit der Ventileinrichtung in einem zweiten Schaltzustand;
• 3 eine schematische Darstellung der Temperiereinrichtung mit der Ventileinrichtung in einem dritten Schaltzustand;
• 4 eine schematische Darstellung der Temperiereinrichtung, wobei in 4 ein vierter Schaltzustand und ein fünfter Schaltzustand der Ventileinrichtung veranschaulicht sind;
• 5 eine schematische Darstellung der Temperiereinrichtung mit der Ventileinrichtung in einem sechsten Schaltzustand;
• 6 eine schematische Darstellung der Temperiereinrichtung mit der Ventileinrichtung in einem siebten Schaltzustand; und
• 7 eine schematische Darstellung einer zweiten Ausführungsform der Temperiereinrichtung.

Further details of the invention result from the following description of preferred exemplary embodiments with the associated drawings. This shows:

• 1 a schematic representation of a first embodiment of a temperature control device for a motor vehicle, wherein in 1 a first switching state of a valve device of the temperature control device is shown;
• 2 a schematic representation of the temperature control device with the valve device in a second switching state;
• 3 a schematic representation of the temperature control device with the valve device in a third switching state;
• 4 a schematic representation of the temperature control device, where in 4 a fourth switching state and a fifth switching state of the valve device are illustrated;
• 5 a schematic representation of the temperature control device with the valve device in a sixth switching state;
• 6 a schematic representation of the temperature control device with the valve device in a seventh switching state; and
• 7 a schematic representation of a second embodiment of the temperature control device.

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

1 shows a schematic representation of a first embodiment of a temperature control device 1 for a motor vehicle, preferably designed as a motor vehicle, in particular as a passenger car. The motor vehicle has an interior, also referred to as a passenger cell or passenger compartment, in which people, such as the driver of the motor vehicle, can stay while the motor vehicle is driving. The temperature control device 1 has a valve device 2, also referred to as a switching valve or designed as a switching valve, which will be explained in more detail below. Furthermore, the temperature control device 1 has a temperature control circuit 3 through which a temperature control fluid can flow. The temperature control fluid is preferably liquid, i.e. a liquid. For example, the temperature control fluid can comprise at least water. In the exemplary embodiment shown in the figures, the valve device 2 has exactly eight connections 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 at least partially accommodated in the valve device housing 4. In particular, the valve device element 5 can be moved relative to the valve device housing 4, in particular translationally and/or rotationally. As will be explained in more detail below, the valve device 2 can be switched, in particular discretely, between at least or exactly five switching states, in particular between at least or exactly six switching states and most particularly between at least or exactly seven switching states. In this regard, it is particularly conceivable that the valve device element 5 can be moved relative to the valve device housing 4, in particular translationally and/or rotationally, between respective switching positions which cause the respective switching states, also referred to as positions, in particular discretely. In particular, the valve device 2 can be switched discretely between the switching states, so that the valve device element 5 can be moved discretely between the switching positions that cause the switching states relative to the valve device housing 4. It is therefore conceivable, for example, that the valve device element 5 can be moved discretely relative to the valve device housing 4 between at least or exactly five, in particular between at least or exactly six and very in particular between at least or exactly seven, switching positions, namely between a first one of the switching states , first switching position, a second switching position causing a second of the switching states, a third switching position causing a third of the switching states, a fourth switching position causing a fourth of the switching states and a fifth switching position causing a fifth of the switching states and, for example, a sixth switching position and a seventh switching position, whereby, for example, the sixth switching position causes a sixth of the switching states and the seventh switching position causes a seventh of the switching states. In the respective switching state and thus in the respective switching position, a respective one of the connections A1-8 can be fluidly connected to a respective other one of the connections A1-8 within the valve device 2 and thereby within the valve device housing 4. This is to be verified stand that if, in the respective switching state, one connection is fluidly connected to the other connection within the valve device 2, in particular within the valve device housing 4, the valve device element 5 within the valve device housing 4 has a fluidic connection between the one connection and the other connection releases, therefore the valve device element 5 is in such a position in which the fluidic connection between one connection and the other connection is established, that is present, within the valve device housing 4. Furthermore, it is conceivable, for example, that in at least one other of the switching positions one connection is fluidically separated from the other connection by means of or within the valve device 2. This is to be understood as meaning that one connection is then fluidically separated from the other connection by means of the valve device element 5 within the valve device housing 4. Expressed again in other words, the valve device element 5 then fluidly separates one connection from the other connection within the valve device housing 4, so that within the valve device housing 4 the fluidic connection between the one connection and the other connection is interrupted or canceled by means of the valve device element 5.

The temperature control circuit 3 has a first strand 6, which is fluidly connected to the connections A1 and A2, therefore connected to the connections A1 and A2 and is thereby fluidly connected to the valve device housing 4 via the connections A1 and A2, in particular outside the valve device housing 4 The first strand 6 has a first branch ZW1 and a second branch ZW2, through which the temperature control fluid can flow. Out of 1 It can be seen that the branches ZW1 and ZW2 are connected in parallel to one another in terms of fluid flow. At least or exactly one drive machine 7 is arranged in the first branch ZW1, by means of which the motor vehicle can be driven. In particular, the drive machine 7 is designed as an electrical machine, by means of which the motor vehicle can be driven, in particular purely electrically. The drive machine 7 can be tempered, that is, cooled and/or heated, by means of the temperature control fluid flowing through branch ZW1. A first heat exchanger 8 is arranged in the second branch ZW2, which is designed, for example, as a water-cooled condenser (WCC).

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

In the exemplary embodiment shown in the figures, a device 9 is optionally arranged in the branch ZW1, which is provided in addition to the drive machine 7 and, for example, external to the drive machine 7, which is to be tempered, that is to be cooled and/or, by means of the temperature control fluid flowing through the branch ZW1 needs to be heated. The device 9 can have at least one electrical or electronic computing device or can be designed as an electrical or electronic computing device, wherein the electrical or electronic computing device can be, for example, a battery management system (BMS). Alternatively or additionally, the device 9 can be or include power electronics, via which, for example, the drive machine 7 can be supplied with electrical energy. At the in 1 In the exemplary embodiment shown, the device 9 is arranged, for example, upstream of the drive machine 7 in the flow direction of the temperature control fluid flowing through the branch ZW1, wherein the device 9 could alternatively be arranged downstream of the drive machine 7.

The temperature control device 1 can have an air conditioning device, not shown in the figures, by means of which air that is to be supplied or is supplied to the interior of the motor vehicle can be tempered, that is, cooled and/or heated. For example, the air conditioning device can be operated in a compression refrigeration machine operation and thus as a compression refrigeration machine, by means of which the air to be supplied to the interior can be cooled or is cooled. Alternatively or additionally, it is conceivable that the air conditioning device can be operated in a heat pump mode and thus as a heat pump, by means of which the air to be supplied to the interior can be heated. By cooling the air to be supplied to the interior space, the interior space can be cooled, and by heating the air to be supplied to the interior space, the interior space can be warmed, that is heated. The air conditioning device has a refrigerant circuit provided in addition to the temperature control circuit 3, which is also referred to as a refrigeration circuit or refrigeration circuit and can be flowed through by a refrigerant which is provided in particular in addition to the temperature control fluid and is different from the temperature control fluid. Out of 1 It can be seen that the temperature control device 1 can have a first pump 10 for conveying the temperature control fluid and a second pump 11 for conveying the temperature control fluid, the pumps 10 and 11 being arranged in the temperature control circuit 3. The pump 11 is provided in addition to the pump 10 and vice versa. The air conditioning device has, for example, a refrigerant compressor provided in addition to the pumps 10 and 11 and arranged in the refrigerant circuit, which is also simply referred to as a compressor or compressor and is designed, for example, as an electric refrigerant compressor. Using the refrigerant compressor, the refrigerant can be conveyed through the refrigerant circuit and compressed. A second heat exchanger 12, also referred to as a chiller, is arranged in the refrigerant circuit and is provided in addition to the heat exchanger 8 and, as will be explained in more detail below, is also arranged in the temperature control circuit 3. The chiller is thus arranged both in the refrigerant circuit and in the temperature control circuit 3, so that both the temperature control fluid and the refrigerant can flow through the chiller (heat exchanger 12). Heat can be exchanged or transferred between the coolant and the temperature control fluid via the chiller, in particular in such a way that heat can be transferred from the temperature control fluid to or to the coolant via the chiller, whereby the temperature control fluid is cooled.

In particular in heat pump operation, the heat transferred to or onto the refrigerant via the chiller can be used to heat the air to be supplied to the interior, and therefore to heat the interior. For example, the air conditioning device has an evaporator provided in addition to the chiller and also in addition to the heat exchanger 8 for evaporating the refrigerant, the evaporator being arranged in the refrigerant circuit. In particular, the heat exchanger 8 is a condenser for condensing the refrigerant. In other words, it is provided that the first heat exchanger 8, which is arranged in the second branch ZW2 and can therefore flow through the second branch ZW2, is also arranged in the refrigerant circuit through which the refrigerant can flow and can therefore also be flowed through by the refrigerant, so that via the first Heat exchanger 8 Heat can be exchanged or transferred between the temperature control fluid and the refrigerant. In particular, the first heat exchanger 8 is or functions 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 control fluid via the first heat exchanger 8. Furthermore, for example, heat from the drive machine 7 and from the device 9 can be transferred to the temperature control fluid. The heat transferred to the temperature control fluid can be used, in particular in heat pump operation, to heat the interior, in particular in that the heat transferred to the temperature control fluid is transferred to the refrigerant in particular via the chiller (second heat exchanger 12) and is thus transferred to the refrigerant. The heat transferred into the refrigerant can then be used to heat the air to be supplied to the interior and thus the interior.

Out of 1 It can be seen that the pump 10 is arranged in the first strand 6, so that the temperature control fluid can be conveyed through the first strand 6 by means of the pump 10. The pump 10 is connected in series to both the branch ZW1 and the branch ZW2, with the pump 10 in the present case being arranged upstream of the branches ZW1 and ZW2 and downstream of the connection A2.

Furthermore, with the in 1 In the exemplary embodiment shown, an electrical heating element 13 is arranged in the strand 6, by means of which the temperature control fluid flowing through the strand 6 can be heated using electrical energy. Out of 1 It can be seen that the electrical heating element 13 is connected in series to both the branch ZW1 and the branch ZW2, with the in 1 In the exemplary embodiment shown, the heating element 13 is arranged downstream of the branches ZW1 and ZW2 and upstream of the connection A1. For example, the heating element 13 is an electric instantaneous water heater (EDH). The heating element 13 is, for example, optionally provided and can therefore, for example, be omitted.

The temperature control circuit 3 also has a second strand 14, which is fluidly connected to the connections A3 and A4, therefore connected to the connections A3 and A4 and thus fluidly connected to the valve device 2, in particular to the valve device housing 4, via the connections A3 and A4. connected is. An electrical energy storage 15 is arranged in the second strand 14, which can also be used simply as an energy storage device cher is called. The electrical energy storage device 15 is therefore to be tempered, that is to say heated and/or cooled, by means of the temperature control fluid flowing through the strand 14. Electrical energy, in particular electrochemically, can be stored by means of the energy storage 15, that is to say in the energy storage 15. For example, the drive machine 7 can be supplied with the electrical energy stored in the energy storage 15, whereby the drive machine 7 can be operated in motor mode and thus as an electric motor, by means of which the motor vehicle can be driven, in particular purely electrically.

The temperature control circuit 3 further has a third strand 16, in which the temperature control fluid flowing through the third strand 16 can flow through, is also arranged in the refrigerant circuit and can therefore also be flowed through by the refrigerant, and is provided in addition to the first heat exchanger 8 ( Chiller) is arranged, via which heat can be exchanged or transferred between the temperature control fluid and the refrigerant. In addition, the pump 11 is arranged in the strand 16, in particular in such a way that in 1 In the exemplary embodiment shown, the pump 11 is arranged upstream of the heat exchanger 12 in the flow direction of the temperature control fluid flowing through the strand 16. The temperature control fluid can thus be conveyed through the strand 16 by means of the pump 11. The pump 10 is a pump provided in addition to the pump 11 and external to the pump 11, and the pump 11 is a pump provided in addition to the pump 10 and external to the pump 10. Accordingly, the heat exchanger 12 is a heat exchanger provided in addition to the heat exchanger 8 and external to the heat exchanger 8, and the heat exchanger 8 is a heat exchanger provided in addition to the heat exchanger 12 and external to the heat exchanger 12. The pumps 10 and 11 are preferably designed as electrical pumps, i.e. as electrically operated pumps.

Furthermore, the temperature control circuit 3 has a fourth strand 17. In the exemplary embodiment shown in the figures, the temperature control circuit 3 has exactly four strands, namely the strands 6, 14, 16 and 17. It can be seen that the strand 16 is fluidly connected to the connections A5 and A6, i.e. to the connections A5 and A6 connected and thus fluidly connected to the valve device 2, in particular to the valve device housing 4, via the connections A5 and A6. The fourth strand 17 is fluidly connected to the connections A7 and A8, therefore connected to the connections A7 and A8 and thus fluidly connected to the valve device 2, in particular to the valve device housing 4, via the connections A7 and A8. In the fourth strand 17, an ambient air cooler 18, also referred to as a radiator, is arranged, which is also referred to as a high-temperature cooler (HT cooler) or is designed as a high-temperature cooler (HT cooler). The ambient air cooler 18, also simply referred to as a cooler, can be flowed through by the temperature control fluid flowing through the strand 17 and by ambient air, i.e. by air arranged overall in an environment of the motor vehicle, so that the temperature control fluid flowing through the radiator can be cooled via the radiator by means of the ambient air flowing around the radiator can, in particular in such a way that heat can be transferred or transferred from the temperature control fluid flowing through the radiator to the ambient air flowing around the radiator via the radiator.

In order to be able to adjust a flow of the temperature control fluid through the first heat exchanger 8 in a particularly needs-based manner, a proportional valve 19, which is provided in addition to the valve device 2, is arranged in the second branch ZW2, which is an external valve with respect to the valve device 2 and is provided in addition to the valve device 2. As a result, for example, the valve device 2 is a valve that is external to the proportional valve 19 and is provided in addition to the proportional valve 19.

In 1 The first switching state is now illustrated. It can therefore be provided that in a method for operating the temperature control device 1, the temperature control device 1 is operated while 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, the pumps 10 and 11 are in operation at the same time, so that the temperature control fluid is conveyed simultaneously, in particular actively, by means of the pumps 10 and 11. In the first switching state, the first strand 6 and the fourth strand 17 are fluidly connected to one another via the valve device 2 and within the valve device 2, that is to say within the valve device housing 4, and are fluidically connected in series to one another, whereby the first strand 6 and the fourth Strand 17 form a first overall strand. In the first switching state, the third strand 16 and the second strand 14 are fluidly connected to one another via the valve device 2, that is to say within the valve device 2 and thereby within the valve device housing 4, and are therefore fluidically connected in series to one another, whereby the third strand 16 and the second strand 14 form a second overall strand. In the first In the th switching state, there is no fluidic connection of the first overall strand to the second overall strand via the valve device 2, so that in the first switching state the first overall strand is not fluidly connected to the second overall strand via the valve device 2.

In 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 the first switching state of the valve device 2 and, in particular after or before, in the second switching state of the valve device 2. In other words, for example, in the method, the temperature control device 1 is operated in such a way 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, with the second period of time, for example, being at the same time first period of time follows or precedes the first period of time. In the second switching state, the first strand 6, the third strand 16 and the second strand 14 are fluidly connected to one another via the valve device 2, that is to say within the valve device 2, and are therefore connected in series to one another, whereby the first strand 6, the third strand 16 and the second strand 14 form a third overall strand. There is no fluidic connection between the third overall strand and the fourth strand 17 via the valve device 2, so that the fourth strand 17 is not fluidly connected to the third overall strand via the valve device 2. Thus, in the second switching state, the pumps 10 and 11 are connected in series to one another in terms of fluid flow. For example, in the second switching state, the pumps 10 and 11 are activated simultaneously, so that, for example, in the second switching state, the temperature control fluid is conveyed simultaneously by means of both pumps 10 and 11. It is conceivable that in the second switching state there is no flow of the temperature control fluid through the fourth strand 17 and/or in the second switching state there is no active delivery of the temperature control fluid through the fourth strand 17 by means of a pump.

In the first switching state, for example, the temperature control fluid initially flows through the first strand 6, via the connections A1 and A7 from the strand 6 into the strand 17, through the strand 17, via the connections A8 and A2 from the strand 17 back into the Strand 6 and then again through the strand 6, and the temperature control fluid flows, for example, first through the strand 14, via the connections A4 and A6 from the strand 14 to and into the strand 16 and via the connections A5 and A3 from the strand 16 to and again into the strand 14 and then through the strand 14 again.

In the second switching state, the temperature control fluid flows, for example, first through the strand 6 and then via the connections A1 and A6 from the strand 6 to and into the strand 6 and then through the strand 16 and then from that via the connections A5 and A3 Strand 16 to and into strand 14 and then through strand 14 and then via connections A4 and A2 from strand 14 to and into strand 6 and then through strand 6 again. To the extent that the temperature control fluid flows through the strand 17 into the second switching state, the temperature control fluid circulates, for example, in the second switching state through the strand 17 and thereby via the connections A7 and A8.

3 shows the third switching state of the valve device 2. In the third switching state, the second strand 14 and the first strand 6 are fluidly connected to one another via the valve device 2, that is to say within the valve device 2 or within the valve device housing 4, and are therefore fluidically connected in series to one another, whereby the second strand 14 and the first strand 6 form a fourth overall strand. In the third switching state, the third strand 16 and the fourth strand 17 are fluidly connected to one another via the valve device 2 and are therefore fluidically connected in series to one another, whereby the third strand 16 and the fourth strand 17 form a fifth overall strand. In the third switching state, there is no fluidic connection between the fourth overall line and the fifth overall line via the valve device 2. In particular, it is conceivable that in the first switching state, the temperature control fluid is conveyed simultaneously by means of both pumps 10 and 11. Furthermore, it is conceivable that in the second switching state the temperature control fluid is conveyed simultaneously by means of both pumps 10 and 11 and thus actively. Furthermore, it is conceivable that in the third switching state the temperature control fluid is conveyed simultaneously by means of both pumps 10 and 11 and thus actively. In the third switching state, for example, the temperature control fluid first flows through the first strand 6 and then via the connections A1 and A3 from the first strand 6 to and into the second strand 14 and then through the second strand 14 and then via the connections A4 and A2 from the second strand 14 back to and into the first strand 6 and then through the first strand 6 again. In addition, for example, in the third switching state, the temperature control fluid first flows through the third strand 16 and then via the connections A5 and A7 from the third strand 16 to and into the fourth strand 17 and then through the fourth strand 17 and then via the connections A8 and A6 from the fourth strand 17 to and into the third strand 16 and again through the third strand 16 through. In 1 the first switching state is designated Z1, in 2 the second switching state is designated Z2, and in 3 the third switching state is designated Z3.

4 shows both the fourth switching state Z4 and the fifth switching state Z5. In the fourth switching state Z4, the second strand 14, the third strand 16, the fourth strand 17 and the first strand 6 are fluidly connected to one another via the valve device 2, that is to say within the valve device 2, and are therefore fluidically connected in series to one another, so that the pumps 10 and 11 are connected in series to each other. In particular, it is provided that in the fourth switching state Z4 the pumps 10 and 11 run simultaneously, that is to say are activated, so that in the fourth switching state Z4 the temperature control fluid is conveyed simultaneously by means of both pumps 10 and 11. In the fourth switching state Z4, the strands 6, 14, 16 and 17 are fluidly connected to one another by means of the valve device 2 in such a way that the third strand 16 is downstream of the second strand 14, the fourth strand 17 is downstream of the third strand 16 and the first strand 6 is downstream the fourth strand 17 is arranged. Thus, for example, the temperature control fluid first flows through the first strand 6 and then via the connections A1 and A3 from the strand 6 to and into the strand 14, then through the strand 14 and then from the strand 14 via the connections A4 and A6 the and into the strand 16 and then through the strand 16 and then via the connections A5 and A7 from the strand 16 to and into the strand 17 and then through the strand 17 and then through the connections A8 and A2 from the strand 17 again to and into strand 6 and then through strand 6 again.

In the fifth switching state Z5, the third strand 16, the fourth strand 17 and the first strand 6 are fluidly connected to one another via the valve device 2 and are therefore fluidically connected in series to one another, whereby the third strand 16, the fourth strand 17 and the first strand 6 are one form the sixth overall strand. There is no fluidic connection between the second strand 14 and the sixth overall rank via the valve device 2. In particular, in the fifth switching state Z5, the pumps 10 and 11 are fluidically connected in series to one another. In the fourth switching state Z4, the pumps 10 and 11 are connected in series to one another in terms of fluid flow. In the fourth switching state Z4, the 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 temperature control fluid is conveyed simultaneously by means of both pumps 10 and 11. In particular, it is conceivable that in the fifth switching state Z5, the temperature control fluid does not flow through the strand 14 and/or the temperature control fluid is actively conveyed through the strand 14 by means of a pump. In particular, it is provided, for example, in the fifth switching state that the temperature control fluid first flows through the first strand 6 and then flows from the strand 6 to and into the strand 16 via the connections A1 and A6 and then flows through the strand 16 and then via the connections A5 and A7 flow from the strand 16 to and into the strand 17 and then flow through the strand 17 and then flow from the strand 17 back to and into the first strand 6 via the connections A8 and A2 and then flow through the strand 6 again .

5 shows the sixth switching state Z6. In the sixth switching state, the second strand 14, the first strand 6, the fourth strand 17 and the third strand 16 are fluidly connected to one another via the valve device 2 and are therefore fluidically connected in series to one another, such that the first strand 6 is downstream of the second strand 14 , the fourth strand 17 is arranged downstream of the first strand 6 and the third strand 16 is arranged downstream of the fourth strand 17. In particular, it is provided, for example, that in the sixth switching state Z6 the temperature control fluid is conveyed simultaneously by means of both pumps 10 and 11. In the sixth switching state Z6, the pumps 10 and 11 are connected in series to one another in terms of fluid flow. Out of 5 It can be seen that, for example in the sixth switching state Z6, the temperature control fluid first flows through the first strand 6 and then flows from the strand 6 to and into the strand 17 via the connections A1 and A7 and then flows through the strand 17 and then via the connections A8 and A6 flows from the strand 17 into the strand 16 and then flows through the strand 16 and then flows from the strand 16 to and into the strand 14 via the connections A5 and A3 and then flows through the strand 14 and then via the connections A4 and A2 flows from the strand 14 to and into the strand 6 and then flows through the strand 6 again.

Finally shows 6 the seventh switching state Z7. In the seventh switching state Z7, the first strand 6 and the fourth strand 17 are fluidly connected to one another via the valve device 2 and are therefore connected in series to one another, whereby the first strand 6 and the fourth strand 17 form the first overall strand. In particular, it is provided that in the seventh switching state, the first connection A1 within the valve device 2 is at least or exclusively fluidly connected to the seventh connection A7 in relation to the connections A1-8, such that the temperature control fluid flowing through the first connection A1 is in relation to the or all other connections can be supplied exclusively to the seventh connection A7, the second connection A2 within the valve device 2 is fluidly connected at least or exclusively with the eighth connection A8 in relation to the connections A1-8, that the temperature control fluid flowing through the second connection A2 in relation to the or all other connections originate exclusively from or from the eighth connection A8, thus the second connection A2 the temperature control fluid can be or is supplied exclusively from the eighth connection A8 in relation to the or all other connections, the third connection A3 within the valve device 2 at least in this way or in relation to the connections, it is fluidly connected exclusively to the fifth connection A5, that the temperature control fluid flowing through the third connection A3 in relation to the or all other connections comes exclusively from or from the fifth connection A5, and therefore the temperature control fluid in relation to the third connection A3 or all other connections can be supplied or are supplied exclusively from the fifth connection A5, the fourth connection A4 within the valve device 2 is fluidly connected at least or exclusively with the sixth connection A6 in relation to the connections in such a way that the temperature control fluid flowing through the fourth connection is related to the or all other connections can be supplied exclusively to the sixth connection A6, the fifth connection A5 within the valve device 2 is fluidly connected at least or in relation to the connections exclusively to the third connection A3 and to the seventh connection A7, that the fifth connection A5 The temperature control fluid flowing through can only be fed partially to the seventh port A7 and partially to the third port A3 in relation to the or all other ports, and the sixth port A6 within the valve device 2 is fluidic in relation to the ports exclusively with the fourth port A4 and with the eighth port A8 is connected that the temperature control fluid flowing through the sixth connection A6 in relation to the or all other connections comes exclusively from or from the eighth connection A8 and from or from the fourth connection A4, and therefore the temperature control fluid in relation to the sixth connection A6 in relation to the or all other connections can only be supplied from the eighth port A8 and from the fourth port A4, the seventh port A7 within the valve device 2 is fluidly connected in relation to the ports exclusively to the fifth port A5 and to the first port A1, that this is the seventh port A7 The temperature control fluid flowing through in relation to the or all other connections comes exclusively from or from the fifth connection A5 and from or from the first connection A1, and therefore the temperature control fluid in relation to the or all other connections comes exclusively from the fifth connection A5 and from the seventh connection A7 first port A1 can be supplied, and the eighth port A8 within the valve device 2 is at least or fluidly connected in relation to the ports exclusively to the sixth port A6 and to the second port A2, that the temperature control fluid flowing through the eighth port A8 is fluidly connected to the or all other connections can be supplied or are supplied exclusively partly to the sixth connection A6 and partly to the second connection A2.

In the seventh switching state, for example, the temperature control fluid first flows through the first strand 6 and then via the connections A1 and A7 to and into the fourth strand 17 and through the fourth strand 17 and then from the strand 17 via the connections A8 and A6 to and into the strand 16 and via the connections A8 and A2 from the strand 17 back to and into the strand 6. In addition, the temperature control fluid flows through the strand 16 and then via the connections A5 and A3 to and into the strand 14 and via the connections A5 and A7 to and into the strand 17. The temperature control fluid flowing through the strand 14 flows via the connections A4 and A6 from the strand 14 to and into the strand 16 and then through the strand 16. It can be seen that the temperature control fluid flowing through the connection A5 and flowing out of the strand 16 via the connection A5 flows from the connection A5 within the valve device housing 4 in relation to the connections A1-8 exclusively to the connections A3 and A7 and thus these connections A3 and A7 is supplied with the temperature control fluid. Furthermore, it can be seen that in the seventh switching state Z7, the connection 3 receives the temperature control fluid flowing through the connection 3 in relation to the connections A1-8 exclusively from the connection A5, and therefore the temperature control fluid flowing through the connection A3 in the seventh switching state Z7 in relation to the connections A1 -8 comes exclusively from the connection A5, so that within the valve device housing 4, the connection A3 is supplied with the temperature control fluid in relation to the connections A1-8 exclusively via the or from connection A5. In the switching state Z7, the connection A7 receives the temperature control fluid flowing through the connection A7 in relation to the connections A1-8 exclusively from the connections A5 and A1, so that, for example, in the seventh switching state Z7 the temperature control fluid flowing through the seventh connection A7 in relation to the connections A1-8 comes exclusively from connections A5 and A1. Expressed again in other words, in the seventh switching state Z7, the connection A7 within the valve device housing 4 is supplied with the temperature control fluid in relation to the connections A1-8 exclusively via or from the connections A5 and A1. Furthermore is over 6 It can be seen that in the seventh switching state Z7, the first connection A1 transfers the temperature control fluid flowing through the first connection A1, based on the connections A1-8, exclusively to the connection A7. Expressed again in other words, within the valve device housing 4, the temperature control fluid flowing through the connection A1 in the seventh switching state Z7 is guided exclusively to the connection A7 in relation to the connections A1-8. In the seventh switching state Z7, the temperature control fluid flowing through the eighth connection A8 within the valve device housing 4 is guided exclusively to the connections A6 and A2 in relation to the connections A1-8, and is therefore fed to the connections A6 and A2, in particular within the valve device housing 4. In the seventh Switching state Z7, the sixth connection A6 within the valve device housing 4 is supplied with the temperature control fluid in relation to the connections A1-8 exclusively from or via the connections A8 and A4, so that in the seventh switching state Z7 the temperature control fluid flowing through the connection A6 in relation to the connections A1 -8 comes exclusively from the connections A8 and A4, and is therefore routed within the valve device housing 4 exclusively from the connections A8 and A4 to the connection A6. In the seventh switching state Z7, the connection A2 receives the temperature control fluid flowing through the connection A2 in relation to the connections A1-8 exclusively from the connection A8, so that in the seventh switching state Z7 within the valve device housing 4 the second connection A2 in relation to the connections A1-8 exclusively from which or via connection A8 is supplied with the temperature control fluid. Expressed again in other words, in the seventh switching state Z7, the temperature control fluid flowing through the second connection A2 comes exclusively from the connection A8 in relation to the connections A1-8. Finally it's over 6 It can be seen that in the seventh switching state Z7, the fourth connection A4 transfers the temperature control fluid flowing through the fourth connection A4 within the valve device housing 4, based on the connections A1-8, exclusively to the sixth connection A6. Expressed again in other words, in the seventh switching state Z7 within the valve device housing 4, the temperature control fluid flowing through the connection A4, based on the connections A1-8, is led exclusively to the connection A6, and is therefore transferred to the connection A6 or fed to the connection A6.

In an embodiment not shown in the figures, it can be provided that in the second branch ZW2 a second ambient air cooler is arranged in addition to the heat exchangers 8 and 12 and in addition to the ambient air cooler 18, which is external to the ambient air cooler and can therefore be flowed around by the ambient air and the temperature control fluid flowing through the second branch ZW2 can flow through. Thus, by means of the second ambient air cooler, the temperature control fluid flowing through the second branch ZW2 can be cooled, in particular by a heat transfer, in which heat is transferred via the second ambient air cooler from the temperature control fluid flowing through the second ambient air cooler to the ambient air flowing around the second ambient air cooler.

7 shows a second embodiment of the temperature control 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 electrical machine, with the additional, further drive machine being assigned to the front axle, for example , so that the front wheels can be driven by means of the additional drive machine, in particular by means of the additional electric machine, in particular purely electrically.

At the in 7 In the second embodiment shown, the first strand 6 has a third branch ZW3, which is fluidically connected parallel to the first branch ZW1 and fluidically parallel to the second branch ZW2, so that the branches ZW1, ZW2 and ZW3 are connected parallel to one another. The pump 10 is connected in series to the branches ZW1, ZW2 and ZW3, and the optionally provided electrical heating element 13 is connected in series to the branches ZW1, ZW2 and ZW3. In the second embodiment, a second drive machine 20, which is provided in addition to the drive machine 7, is arranged in the third branch ZW3 and is to be tempered, that is to be cooled and/or heated, by means of the temperature control fluid flowing through the third branch Z3. 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, in particular purely, electrically. Preferably, the drive machine 20 is a machine provided in addition to the drive machine 7 and external to the drive machine 7, it being accordingly preferably provided that the drive machine 7 is a machine external to the drive machine 20 and provided in addition to the drive machine 20. In particular, the drive machines 7 and 19 can be designed as high-voltage components. The energy storage 15 is preferably designed as a high-voltage component, so that the energy storage 15 is also referred to as a high-voltage storage (HVS).

Out of 7 It can be seen that, in particular if or when the heating element 13 is omitted, an electrical heating element 21 can be arranged in the third strand 16, by means of which the temperature control fluid flowing through the strand 16 can be heated using electrical energy. In particular, the heating element 21 can 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 temperature control fluid flowing through the strand 16.

Reference symbol list

1

Temperature control device

2

Valve device

3

Temperature control circuit

4

Valve device housing

5

Valve device element

6

first strand

7

prime mover

8th

first heat exchanger

9

Furnishings

10

pump

11

pump

12

second heat exchanger

13

electric heating element

14

second strand

15

electrical energy storage

16

third strand

17

fourth strand

18

Ambient air cooler

19

Proportional valve

20

prime mover

21

electric heating element

22

second ambient air cooler

A1

first connection

A2

second connection

A3

third connection

A4

fourth connection

A5

fifth connection

A6

sixth connection

A7

seventh connection

A8

eighth connection

Z1

first switching state

Z2

second switching state

Z3

third switching state

Z4

four switching states

Z5

fifth switching state

Z6

sixth switching state

Z7

seventh switching state

ZW1

first branch

ZW2

second branch

ZW3

third branch

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102017220376 A1 [0002]
• DE 102019132688 A1 [0002]
• US 3336319 B2 [0002]

Claims (15)

Temperature control device (1) for a motor vehicle, with a valve device (2), which has eight connections (A1-8), and with a temperature control circuit (3) through which a temperature control fluid can flow, which has: - a first strand (6) fluidly connected to a first of the connections (A1-8) and fluidly to a second of the connections (A1-8), which has: ◯ at least one first branch (ZW1), in which at least one drive machine (7) which can be tempered by means of the temperature control fluid flowing through the first branch (ZW1) is arranged, ◯ at least one second branch (ZW2) connected in parallel to the first branch (ZW1), in which a coolant can flow through the temperature control fluid flowing through the second branch (ZW2), also in a cooling medium provided in addition to the temperature control circuit (3). A first heat exchanger (8) is arranged in a refrigerant circuit and can therefore also be flowed through by the refrigerant, via which heat can be exchanged between the temperature control fluid and the refrigerant, - a second strand (14) fluidly connected to a third of the connections (A1-8) and fluidly to a fourth of the connections (A1-8), in which an electrical temperature control fluid to be tempered by means of the temperature control fluid flowing through the second strand (14). Energy storage (15) is arranged for storing electrical energy, - a third strand (16) fluidly connected to a fifth of the connections (A1-8) and fluidly to a sixth of the connections (A1-8), in which a temperature control fluid flowing through the third strand (16) can flow through, also in a second heat exchanger (12) is arranged in the refrigerant circuit and can therefore also be flowed through by the refrigerant and is provided in addition to the first heat exchanger (8), via which heat can be exchanged between the temperature control fluid and the refrigerant, and - a fourth strand (17) fluidly connected to a seventh of the connections (A1-8) and fluidly to an eighth of the connections (A1-8), in which an ambient air cooler (18) is arranged, via which the ambient air cooler (18 ) temperature control fluid flowing through is to be cooled by means of ambient air flowing around the ambient air cooler (18). Temperature control device (1). Claim 1 , characterized in that in the second branch (ZW2) upstream or downstream of the first heat exchanger (8) a proportional valve (19) is arranged in addition to the valve device (2) and external to the valve device (2). Temperature control device (1). Claim 1 or 2 , characterized in that in the second branch (ZW2) a second ambient air cooler (22) is arranged in addition to the ambient air cooler (18) and in addition to the heat exchangers (8, 12), via which the second branch (ZW2) and thereby the temperature control fluid flowing through the second ambient air cooler (22) and the first heat exchanger (8) is to be cooled by means of ambient air flowing around the second ambient air cooler (22). Temperature control device (1) according to one of the preceding claims, characterized in that an electrical heating element (13) is arranged in the first strand (6) for heating the temperature control fluid flowing through the first strand (6). Temperature control device (1) according to one of the preceding claims, characterized in that an electrical heating element (21) is arranged in the third strand (16) for heating the temperature control fluid flowing through the third strand (16). Temperature control device (1) according to one of the preceding claims, characterized in that a pump (10) for conveying the temperature control fluid is arranged in the first line (6). Temperature control device (1) according to one of the preceding claims, characterized in that a pump (11) for conveying the temperature control fluid is arranged in the third strand (16). Temperature control device (1). Claim 6 or 7 , characterized in that the pump (10, 11) is designed as an electric pump. Temperature control device (1) according to one of the preceding claims, characterized in that the valve device (2), in particular discretely, can be switched between: - a first switching state (Z1), in which: ◯ the first strand (6) and the fourth strand ( 17) are fluidly connected to one another via the valve device (2) and are therefore connected in series to one another and form a first overall strand, ◯ the third strand (16) and the second strand (14) are fluidly connected to one another via the valve device (2) and are therefore connected in series to one another are connected and form a second overall strand, and ◯ a fluidic connection of the first overall strand with the second overall strand via the valve device (2) is omitted, and - a second switching state (Z2), in which the first strand (6), the third strand (16) and the second strand (14) via the valve device (2) are fluidly connected to one another and are therefore connected in series to one another and form a third overall strand, with a fluidic connection of the third overall strand to the fourth strand (17) via the valve device (2) being omitted. Temperature control device (1). Claim 9 , characterized in that the valve device (2), in particular discretely, can be switched between the first switching state (Z1), the second switching state (Z2) and a third switching state (Z3), in which: - the second strand (14) and the first strand (6) are fluidly connected to one another via the valve device (2) and are therefore connected in series to one another and form a fourth overall strand, - the third strand (16) and the fourth strand (17) are fluidly connected to one another via the valve device (2) and are thereby connected in series to one another and form a fifth overall strand, and - there is no fluidic connection of the fourth overall strand to the fifth overall strand via the valve device (2). Temperature control device (1). Claim 9 or 10 , characterized in that the valve device (2), in particular discretely, can be switched between the first switching state (Z1), the second switching state (Z2) and a fourth switching state (Z4), in which the second strand (14), the third strand (16), the fourth strand (17) and the first strand (6) are fluidly connected to one another via the valve device (2) and are therefore connected in series to one another. Temperature control device (1). Claim 11 , characterized in that in the fourth switching state (Z4) the third strand (16) is downstream of the second strand (14), the fourth strand (17) is downstream of the third strand (16) and the first strand (6) is downstream of the fourth strand (17) is arranged. Temperature control device (1) according to one of the Claims 9 until 12 , characterized in that the valve device (2), in particular discretely, can be switched between the first switching state (Z1), the second switching state (Z2) and a fifth switching state (Z5), in which: - the third strand (16), the fourth strand (17) and the first strand (6) are fluidly connected to one another via the valve device (2) and are therefore connected in series to one another and form a sixth overall strand, and - a fluidic connection of the second strand (14) to the sixth overall rank via the Valve device (2) is omitted. Temperature control device (1) according to one of the Claims 9 until 13 , characterized in that the valve device (2), in particular discretely, can be switched between the first switching state (Z1), the second switching state (Z2) and a sixth switching state (Z6), in which: - the second strand (14), the the first strand (6), the fourth strand (17) and the third strand (16) are fluidly connected to one another via the valve device (2) and are therefore connected in series to one another, and - the first strand (6) downstream of the second strand (14) , the fourth strand (17) is arranged downstream of the first strand (6) and the third strand (16) is arranged downstream of the fourth strand (17). Motor vehicle, with a temperature control device (1) according to one of the preceding claims.

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