Temperature control device for motor vehicle, in particular for motor vehicle, and motor vehicle comprising such temperature control device

Abstract

The invention relates to a temperature control device (1) for a motor vehicle, comprising a temperature control circuit (2) through which a temperature control medium can flow, comprising: a first branch (S1) in which at least one ambient air cooler (3) is arranged; a second branch line (S2) in which at least one drive machine (4) for driving the motor vehicle is arranged; and a third branch (S3) having a first branch (Z1), in which an electrical energy store (7) is arranged, as a bypass branch, and a second branch (Z2), via which the first branch (Z1) can be bypassed by the temperature control medium. According to the invention, a fourth branch (S4) is provided, in which a first heat exchanger (8) also arranged in a refrigerant circuit through which a refrigerant can flow is arranged, via which heat can be exchanged between the refrigerant and the temperature control medium. A fifth branch (S5) is also provided, in which a second heat exchanger (9) is also arranged in the refrigerant circuit, via which heat can be exchanged between the refrigerant and the temperature control medium.

Description

Background Technology

[0001] A cooling system for a motor vehicle is known from DE102017220376A1, the motor vehicle including an electric energy storage device for driving the motor vehicle. Furthermore, DE102019132688A1 discloses a thermal management system for a motor vehicle. Summary of the Invention

[0002] The objective of this invention is to provide a temperature control device for a motor vehicle and a motor vehicle including such a temperature control device, enabling particularly advantageous temperature control, i.e., cooling and / or heating.

[0003] This task is accomplished according to the invention by means of a temperature regulating device having the features of claim 1 and a motor vehicle having the features of claim 10. The advantageous embodiments of the invention are those described in the dependent claims.

[0004] The first aspect of the invention relates to a temperature regulating device, also referred to as or constructed as a temperature system or temperature regulating apparatus. Motor vehicles are also called vehicles and are preferably constructed as automobiles, especially as passenger cars, the interior space of which is also referred to as a passenger compartment or passenger space, formed by a body of the motor vehicle, preferably constructed as a self-supporting body. Preferably, the motor vehicle is constructed as an electric vehicle, especially as a battery electric vehicle (BEV), such that the motor vehicle can be electrically driven, especially purely electrically driven. Furthermore, it is conceivable that the motor vehicle is a hybrid vehicle. With the aid of the temperature regulating device, at least one sub-area of ​​the motor vehicle, especially at least one sub-area of ​​the interior space of the motor vehicle, can be temperature regulated, i.e., cooled and / or heated. In order to enable, for example, at least the sub-area of ​​the motor vehicle, i.e., at least the sub-area of ​​the interior space, to be temperature regulated, especially heated, the temperature regulating device can, for example, operate in heat pump operation and thus operate as a heat pump also referred to as a WP. When referring to heating the interior space above and below, unless otherwise stated, it should be understood that the heating of at least the sub-area of ​​the interior space described above is sufficient, thus it is conceivable that the interior space can be heated overall. Heating the interior space is also known as beheizen or heating the interior space.

[0005] The temperature control device has a temperature control loop (Temperierkreislauf) through which a preferred liquid temperature control medium flows. This temperature control loop is also simply referred to as a temperature control circuit (Temperierkreis), circuit (Kreis), or loop (Kreislauf). Preferably, the temperature control medium is a liquid temperature control medium, and therefore a liquid. The temperature control medium may, for example, include at least water.

[0006] An ambient air cooler is arranged in the temperature control circuit. The ambient air cooler should be understood as a heat exchanger, also called a heat exchanger, which, for example, during the movement of a motor vehicle, and more particularly during its forward movement, is circulated by ambient air, and thus by the air in the vehicle's surrounding environment. In other words, the ambient air cooler is circulated by or can be circulated by the driving air during the movement of the motor vehicle, especially during its forward movement, which is formed by the air in the vehicle's surrounding environment. The ambient air cooler is permeable by a temperature-regulating medium, allowing heat to be exchanged between the temperature-regulating medium flowing through the ambient air cooler and the air circulating within it, also called ambient air, particularly allowing heat to be transferred from the temperature-regulating medium to the ambient air via the ambient air cooler. This cools the temperature-regulating medium.

[0007] A drive motor for driving the motor vehicle is also arranged in the temperature control circuit. Therefore, the at least one drive motor can be circulated by a temperature control medium, allowing it to be temperature-controlled, i.e., cooled or, in some cases, heated, by means of the medium. The at least one drive motor is also referred to as the first drive motor. When the drive motor or the at least one drive motor is mentioned above and below, unless otherwise stated, it should be understood as the first drive motor. The drive motor can be constructed, for example, as an internal combustion engine, also referred to as an internal combustion engine (Verbrennungsmotor) or a thermal engine (Brennkraftmaschine). Furthermore, it is conceivable that the drive mechanism is constructed as an electric motor, by means of which the motor vehicle can be electrically driven, especially purely electrically driven. Preferably, the electric motor is a high-voltage component, the voltage of which, especially the operating voltage or rated voltage, is preferably greater than 50 volts, especially greater than 60 volts, and particularly preferably several hundred volts. Heat can be exchanged, for example, between the drive motor and the temperature-regulating medium of the cross-flow drive motor, particularly allowing heat to be selectively transferred from the temperature-regulating medium to the drive motor or vice versa, thus selectively heating or cooling the drive motor. For example, when the temperature-regulating medium has a higher temperature than the drive motor in its path through the drive motor, the temperature-regulating medium is a heating medium or is used as a heating medium, and the drive motor can be heated by means of the heating medium. If, for example, the temperature-regulating medium has a lower temperature than the drive motor in its path through the drive motor, heat can be transferred from the drive motor to the temperature-regulating medium, thereby cooling the drive motor. Preferably, the temperature-regulating medium can be a component of a temperature-regulating device.

[0008] An energy storage device is also arranged in the temperature control circuit, in which or by means of the energy storage device, (especially electrochemically) electrical energy is stored or can be stored. Particularly preferably, the energy storage device is a high-voltage component, the voltage of which, especially the operating voltage and rated voltage, is preferably greater than 50 volts, especially greater than 60 volts, and particularly preferably several hundred volts. The previously mentioned motor can, for example, be supplied with the electrical energy stored in the energy storage device, thereby allowing the motor to operate in motor operation and thus as an electric motor. With the aid of the electric motor, the motor vehicle can, for example, be electrically driven, especially purely electrically driven. For example, the energy storage device has multiple memory cells, also simply called individual cells, which are, for example, electrically connected to each other. The aforementioned electrical energy can be stored (especially electrochemically) in these memory cells. The energy storage device is also called a battery, and especially when the energy storage device is a high-voltage component, it is a high-voltage battery.

[0009] A first heat exchanger, particularly attached to the ambient air cooler, is also arranged in the temperature control circuit. This first heat exchanger is also arranged in a cooling medium circuit through which the cooling medium flows, allowing heat to be exchanged between the cooling medium and the temperature control medium via the first heat exchanger. The first heat exchanger is, for example, a chiller, or simply a refrigeration unit.

[0010] In particular, the refrigerant circuit is arranged in conjunction with the temperature control circuit, and especially in particular, the refrigerant circuit and the temperature control circuit are fluidly separated. Heat can be exchanged between the refrigerant and the temperature control medium via a first heat exchanger. Specifically, the first heat exchanger may be, for example, a cooler for the temperature control medium or function as a cooler, or the first heat exchanger may operate as a cooler for the temperature control medium, such that heat can be transferred from the temperature control medium to the refrigerant medium, for example, via the first heat exchanger. This allows the temperature control medium to be cooled and the refrigerant medium to be heated. It is conceivable that the refrigerant circuit, and therefore the first heat exchanger, is a component of the air conditioning system of a motor vehicle, which is also referred to as an air conditioning unit. The air conditioning unit is, for example, a compressor refrigeration unit or can at least operate as a compressor refrigeration unit. Furthermore, it is conceivable that, alternatively or additionally, the air conditioning unit can operate as a heat pump. In particular, it is conceivable that the first heat exchanger is a first evaporator for the refrigerant medium or can operate as a first evaporator, wherein the refrigerant medium can be evaporated by means of the first evaporator. By means of the evaporation of the refrigeration medium, the refrigeration medium can particularly advantageously receive heat from or from the temperature-regulating medium, especially via a first heat exchanger, thereby advantageously cooling the temperature-regulating medium, also known as a temperature regulator or temperature-regulating fluid.

[0011] For example, a refrigerant heat exchanger may be arranged in the refrigerant circuit, which is attached to the first heat exchanger, and more particularly, the refrigerant heat exchanger may be arranged downstream of the first heat exchanger in the coolant circuit.

[0012] In the first variant, for example, the refrigerant heat exchanger can be circulated and / or flowed through, the air being introduced into the interior space, that is, at least into a sub-region of the interior space, and therefore also referred to as interior space air, cabin air, or passenger cabin air. Heat can be exchanged between the refrigerant and the cabin air via the refrigerant heat exchanger, for example, allowing heat to be transferred from or from the refrigerant to the cabin air. This cools the refrigerant and heats the cabin air, wherein, by introducing the cabin air into the interior space, the interior space, that is, at least its components, can be heated and further warmed.

[0013] In a second variation, the refrigerant heat exchanger can be arranged in an internal space loop, also referred to as an internal circuit, internal loop, or internal space loop. The internal space loop can be traversed by a preferably liquid fluid, such as a temperature-regulating medium or a fluid different from a temperature-regulating medium. In the second variation, heat can be exchanged between the fluid and the refrigerant medium via the refrigerant heat exchanger, specifically allowing heat to be transferred from or from the refrigerant medium to the fluid via the refrigerant heat exchanger. This cools the refrigerant medium and heats the fluid. It is conceivable that an internal space heat exchanger, particularly attached to the first heat exchanger and the refrigerant heat exchanger, is arranged in the internal space loop; this internal space heat exchanger is also referred to as a heating heat exchanger or can operate as a heating heat exchanger. The internal space heat exchanger can be traversed by the fluid. Furthermore, for example, an interior space heat exchanger can be used to circulate and / or allow flow of cabin air introduced into the interior space, as mentioned earlier. Heat can be exchanged between the fluid and the cabin air flowing through and / or circulating within the interior space heat exchanger, particularly allowing heat to be transferred from the fluid to the cabin air via the interior space heat exchanger. This cools the fluid and heats the cabin air. Because the cabin air is introduced or can be introduced into the interior space, the interior space can be heated, i.e., warmed. In particular, a refrigerant heat exchanger can be a condenser or can operate as a condenser, where the refrigerant can be cooled and condensed, particularly by means of the refrigerant heat exchanger, through which heat is transferred from or can be transferred from the refrigerant to the cabin air or fluid. It can be seen that in the first and second variations, especially in the heat pump operation mentioned above, the cabin air and thus the interior space can be heated via the first heat exchanger and especially via the refrigerant heat exchanger, wherein, in particular, the heat pump operation is constructed or configured for heating the interior space.

[0014] Furthermore, a second heat exchanger, attached to the first heat exchanger and also arranged in the refrigerant circuit, is provided in the temperature control circuit. Heat can be exchanged between the refrigerant and the temperature control medium via this second heat exchanger. In particular, when the previously mentioned internal space heat exchanger is provided, the second heat exchanger is also attached to it. The second heat exchanger can be the previously mentioned refrigerant heat exchanger or another heat exchanger additionally provided thereto. Heat can be exchanged between the refrigerant and the temperature control medium via the second heat exchanger, specifically allowing heat to be transferred from the refrigerant to the temperature control medium. This allows cooling of the refrigerant, enabling the second heat exchanger to be configured as a cooler or to operate as a cooler for the refrigerant. In particular, the refrigerant can be cooled and condensed by means of the second heat exchanger, enabling the second heat exchanger to be configured as a condenser or to operate as a condenser.

[0015] The temperature control device includes a temperature detection device configured to detect, i.e., measure, a first temperature of the temperature control medium upstream of the ambient air cooler, a second temperature of the temperature control medium upstream of the drive unit, a third temperature of the temperature control medium upstream of the energy storage unit, a fourth temperature of the ambient environment of the vehicle, and a fifth temperature of the energy storage unit, wherein the fourth temperature is also referred to as the ambient temperature or external temperature. For example, the fifth temperature may be the temperature of at least one or exactly one of the storage cells. Furthermore, it is conceivable that the fifth temperature represents the temperature of the storage cells of the energy storage unit, and especially all of the storage cells. For example, for detection purposes, the corresponding temperature detection device has a corresponding temperature sensor.

[0016] Furthermore, the temperature control device includes an electronic computing device configured to selectively operate the temperature control device in a first heat pump operating mode or a second heat pump operating mode. As explained in more detail below, the electronic computing device is preferably configured to selectively operate the temperature control device in a first heat pump operating mode, a second heat pump operating mode, a third heat pump operating mode, a fourth heat pump operating mode, a fifth heat pump operating mode, or a sixth heat pump operating mode. Each heat pump operating mode is a different operating mode of the heat pump operation, also simply referred to as a mode, such that in the corresponding heat pump operating mode, the temperature control device operates as a heat pump as previously mentioned, or can operate as a heat pump as previously mentioned, so as to heat, and thus provide heating, at least in a sub-area of ​​the vehicle, especially at least in a sub-area of ​​the interior space of the vehicle. As explained more precisely below, the corresponding heat pump operating mode is also used for temperature control, i.e., cooling and / or heating of the electric energy storage device, thereby maintaining the electric energy storage device within a particularly advantageous temperature range and / or at a particularly advantageous temperature, so that the electric energy storage device and therefore the vehicle can achieve particularly efficient and effective operation overall. Temperature regulation can be particularly effective and efficient for at least sub-regions of the vehicle and especially for electric energy storage devices attached to sub-regions of the vehicle, by means of the following: the valve device can be switched to different switching states, thereby enabling the setting, i.e., activation of different heat pump operating modes. A specific heat pump operating mode (especially exactly one) and a specific switching state associated with the valve device (especially exactly one) allow the setting, i.e., activation of the corresponding heat pump operating mode associated with the corresponding switching state by switching the valve device to the corresponding switching state, thus enabling the temperature regulating device to operate in the activated heat pump operating mode or to operate within the activated heat pump operating mode.

[0017] A method for operating a temperature-controlled device is also disclosed. In this method, the temperature-controlled device selectively operates in a first heat pump operating mode, a second heat pump operating mode, a third heat pump operating mode, a fourth heat pump operating mode, a fifth heat pump operating mode, or a sixth heat pump operating mode. This is explained in more detail below.

[0018] The electronic computing device is configured to operate the temperature control device in a first heat pump operating mode when a first temperature is greater than a predetermined first threshold and a second temperature is greater than a predetermined second threshold. In other words, in the method, the temperature control device operates in the first heat pump operating mode when the first temperature is greater than the first threshold and the second temperature is greater than the second threshold. In the first heat pump operating mode, the ambient air cooler, the drive motor, and the first heat exchanger are connected in series with each other in terms of flow technology, without the temperature control medium flowing through the accumulator and the second heat exchanger. This means that in the method, in the first heat pump operating mode, the temperature control medium flows through the ambient air cooler, the drive motor, and the first heat exchanger in series, that is, sequentially, while the temperature control medium does not flow through the accumulator and does not flow through the second heat exchanger.

[0019] The electronic computing device is also configured to operate in a second heat pump operating mode when a second temperature is greater than a first threshold and less than a third threshold that is greater than the first threshold, and greater than the ambient temperature. This means that the third threshold is greater than the first threshold. In other words, in the method, the temperature-regulating device operates in the second heat pump operating mode when the second temperature is greater than the first threshold and less than the third threshold, and greater than the ambient temperature. In the second heat pump operating mode, the drive unit and the first heat exchanger are connected in series with each other in terms of flow technology, and no temperature-regulating medium flows through the ambient air cooler, the accumulator, and the second heat exchanger. This means that in the method, in the second heat pump operating mode, the temperature-regulating medium flows in series, that is, sequentially through the drive unit and the first heat exchanger, while the temperature-regulating medium does not flow through the ambient air cooler, the accumulator, or the second heat exchanger. For example, a temperature control device has a valve device arranged in the temperature control loop. By means of this valve device, an ambient air cooler, a drive motor, an electric accumulator, a first heat exchanger, and a second heat exchanger can be interconnected technically, that is, with respect to the flow of the temperature-controlling medium through the ambient air cooler, drive motor, electric accumulator, first heat exchanger, and second heat exchanger, so that the temperature control device can selectively operate in a first heat pump operating mode or a second heat pump operating mode. For this purpose, for example, an electronic computing device can control the valve device. The ambient air cooler, drive motor, electric accumulator, first heat exchanger, and second heat exchanger are also referred to as components. Therefore, by means of the valve device, by controlling the valve device, these components can be interconnected with respect to the corresponding flow of the temperature-controlling medium through the components, so that the temperature control device can selectively operate in a first heat pump operating mode or a second heat pump operating mode. Therefore, the valve device can selectively set the first heat pump operating mode or the second heat pump operating mode through the interconnection of these components. This also applies correspondingly to a third heat pump operating mode, a fourth heat pump operating mode, a fifth heat pump operating mode, and a sixth heat pump operating mode.

[0020] To achieve particularly advantageous temperature control, one embodiment specifies that the electronic computing device is configured to operate in a third heat pump operating mode when a third temperature is greater than a fifth temperature and greater than the ambient temperature, and the fifth temperature is less than a predetermined fourth threshold. In other words, in this method, the temperature control device operates in a third heat pump operating mode when the third temperature is greater than the fifth temperature and greater than the ambient temperature, and when the fifth temperature is less than the fourth threshold. In the third heat pump operating mode, the drive unit, accumulator, and first heat exchanger (especially by means of valve devices) are connected in series with each other in terms of flow technology, and no temperature-regulating medium flows through the ambient air cooler in the third heat pump operating mode. This means that in this method, in the third heat pump operating mode, the temperature-regulating medium flows in series through the drive unit, accumulator, and first heat exchanger, while the temperature-regulating medium does not flow through the ambient air cooler.

[0021] To achieve particularly advantageous temperature control, one embodiment specifies that the electronic computing device is configured to operate in a fourth heat pump operating mode when a fifth temperature is greater than a fourth threshold, a third temperature is greater than a first temperature, less than a third threshold, and greater than a first threshold, and a second temperature is greater than a second threshold. In other words, in this method, the temperature control device operates in a fourth heat pump operating mode when the fifth temperature is greater than the fourth threshold, the third temperature is greater than the first temperature, less than a third threshold, and greater than a first threshold, and the second temperature is greater than a second threshold.

[0022] In the fourth heat pump operating mode, the ambient air cooler and the drive unit (especially with the aid of valve devices) are connected in series with each other in terms of flow technology and are thus arranged in a first loop branch through which the temperature-regulating medium flows. In the fourth heat pump operating mode, the accumulator and the first heat exchanger (especially with the aid of valve devices) are connected in series with each other in terms of flow technology and are thus arranged in a second loop branch through which the temperature-regulating medium flows, fluidly separated from the first loop branch, without the temperature-regulating medium flowing through the second heat exchanger. This means that, in the method, in the fourth heat pump operating mode, the temperature-regulating medium flows in series through the first loop branch and thus in series through the ambient air cooler and the drive unit, and the temperature-regulating medium flows in series through the second loop branch and thus in series through the accumulator and the first heat exchanger, wherein the first loop branch and the second loop branch are fluidly separated from each other, and the temperature-regulating medium does not flow through the second heat exchanger.

[0023] To achieve particularly advantageous temperature control, in one embodiment, the electronic computing device is configured to operate in a fifth heat pump operating mode when a fifth temperature is greater than a fourth threshold, a third temperature is greater than a first temperature, less than a third threshold, and greater than a first threshold, and a second temperature is less than a second threshold. In other words, in this method, the temperature control device operates in a fifth heat pump operating mode when the fifth temperature is greater than the fourth threshold, the third temperature is greater than the first temperature, less than a third threshold, and greater than a first threshold, and the second temperature is less than a second threshold.

[0024] In the fifth heat pump operating mode, the drive motor is arranged in a drive motor branch through which the temperature-regulating medium flows, and the accumulator and the first heat exchanger (especially by means of valve devices) are connected in series with each other in terms of flow technology and are thus arranged in an accumulator branch through which the temperature-regulating medium flows, fluidly separated from the drive motor branch, and no flow of the temperature-regulating medium occurs through the ambient air cooler and the second heat exchanger. This means that, in the method, in the fifth heat pump operating mode, the temperature-regulating medium flows through the drive motor branch and thus through the drive motor, and flows through the accumulator branch and thus in series through the accumulator and the first heat exchanger, wherein the drive motor branch and the accumulator branch are fluidly separated from each other. In the fifth heat pump operating mode, the temperature-regulating medium does not flow through the ambient air cooler and does not flow through the second heat exchanger.

[0025] To achieve particularly advantageous temperature control, one embodiment specifies that the electronic computing device is configured to operate in a sixth heat pump operating mode when a second temperature is less than a second threshold and a third temperature is less than a third threshold and greater than a first threshold. In other words, in the method, the temperature control device operates in a sixth heat pump operating mode when the second temperature is less than the second threshold and the third temperature is less than the third threshold and greater than the first threshold.

[0026] In the sixth heat pump operating mode, the drive motor is arranged in a drive motor branch line through which the temperature-regulating medium flows, while the second heat exchanger is arranged in a first heat exchanger branch line through which the temperature-regulating medium flows, and no temperature-regulating medium flows through the ambient air cooler. In the sixth heat pump operating mode, the accumulator and the first heat exchanger are arranged in the second heat exchanger branch line through which the temperature-regulating medium flows and are connected in series, wherein the second heat exchanger branch line is fluidly separated from the drive motor branch line and the first heat exchanger branch line. This means that, in the method described above, in the sixth heat pump operating mode, the temperature-regulating medium flows through the drive motor branch line and thus through the drive motor, while the temperature-regulating medium (especially in parallel) flows through the first heat exchanger branch line and thus through the second heat exchanger, and the temperature-regulating medium (especially in series) flows through the second heat exchanger branch line and thus through the first heat exchanger and through the accumulator, while the temperature-regulating medium does not flow through the ambient air cooler.

[0027] The second aspect of the invention relates to a motor vehicle, also simply referred to as a vehicle and preferably constructed as an automobile, especially a passenger car, having a temperature control device according to the first aspect of the invention. The advantages and advantageous designs of the first aspect of the invention can be considered as advantages and advantageous designs of the second aspect of the invention, and vice versa.

[0028] For example, a temperature-regulating circuit has a first branch through which a temperature-regulating medium can flow, and an ambient air cooler is arranged in the first branch. The first branch and therefore the ambient air cooler are through which the temperature-regulating medium flows, allowing heat exchange between the temperature-regulating medium flowing through the ambient air cooler and the air circulating around the ambient air cooler, also known as ambient air. Specifically, heat can be transferred from the temperature-regulating medium to the ambient air via the ambient air cooler. This cools the temperature-regulating medium.

[0029] Furthermore, the temperature-regulating circuit, for example, has a second branch line in which a drive motor is arranged, by means of which the motor vehicle can be driven. Therefore, the second branch line and thus the at least one drive motor can be circulated by a temperature-regulating medium, allowing the at least one drive motor to be temperature-regulated, i.e., cooled, or in some cases heated, by means of the temperature-regulating medium. For example, heat can be exchanged between the drive motor and the temperature-regulating medium flowing through the second branch line and thus through the drive motor, particularly allowing heat to selectively transfer from the temperature-regulating medium to the drive motor or from the drive motor to the temperature-regulating medium, allowing the drive motor to be selectively heated or cooled. For example, when the temperature-regulating medium has a higher temperature than the drive motor along its path through the second branch line, the temperature-regulating medium is a heating medium or functions as a heating medium, by means of which the drive motor can be heated. If, for example, the temperature-regulating medium has a lower temperature than the drive motor along its path through the second branch line, heat can transfer from the drive motor to the temperature-regulating medium, thereby cooling the drive motor. Preferably, the temperature-regulating medium is a component of the temperature-regulating device.

[0030] Furthermore, the temperature-regulating circuit, for example, has a third branch through which the temperature-regulating medium can flow, said third branch having a first branch and a second branch. An electric accumulator is arranged in the first branch. The second branch of the third branch is a bypass branch, also referred to as a bypass, bypass line, or bypass conduit. Through this bypass branch, the first branch and therefore the electric accumulator can be bypassed by the temperature-regulating medium. This means that the temperature-regulating medium flowing through the second branch bypasses the first branch and thus bypasses the electric accumulator, and therefore does not flow through the first branch and therefore does not flow through the electric accumulator.

[0031] Furthermore, the temperature control circuit, for example, has a fourth branch through which a temperature control medium can flow, in which a first heat exchanger, particularly attached to an ambient air cooler, is arranged. The first heat exchanger is arranged in the fourth branch and thus in the temperature control circuit, and furthermore, the first heat exchanger is arranged in a cooling medium circuit through which a cooling medium can flow.

[0032] The temperature control circuit, for example, also has a fifth branch through which the temperature control medium can flow, in which a second heat exchanger, additional to the first heat exchanger, is arranged. The second heat exchanger is arranged in the fifth branch and therefore in the temperature control circuit and also in the cooling medium circuit.

[0033] Each branch of the temperature control loop is, for example, a corresponding length region of the temperature control loop through which the temperature control medium can flow, particularly the previously mentioned internal space loop, which is attached to the branch of the temperature control loop. In particular, in the second variation mentioned, the refrigerant heat exchanger can be arranged in an internal space loop, which is attached to the branch of the temperature control loop, and is also referred to as an internal loop, internal circuit, or internal space circuit.

[0034] The temperature control equipment includes a temperature detection device, for example configured to detect, i.e., measure, a first temperature of the temperature control medium in the first branch upstream of the ambient air cooler. For example, a conveying device is arranged in the temperature control circuit, by means of which the temperature control medium can be conveyed, particularly along the flow direction, through the temperature control circuit. With respect to the flow direction, i.e., to the temperature control medium flowing away from the conveying device and towards the ambient air cooler, the first temperature of the temperature control medium is the temperature of the temperature control medium in the first branch downstream of the conveying device and upstream of the ambient air cooler. The temperature detection device is also, for example, configured to detect, i.e., measure, a second temperature of the temperature control medium in the second branch upstream of the drive motor and particularly downstream of the conveying device. The temperature detection device is also, for example, configured to detect, i.e., measure, a third temperature of the temperature control medium in the third branch upstream of the first branch and upstream of the second branch and particularly downstream of the conveying device. This means that the second temperature of the temperature-regulating medium exists, for example, upstream of the drive motor in the fifth branch and especially downstream of the conveying equipment, and the third temperature of the temperature-regulating medium exists, for example, upstream of the first branch, upstream of the second branch, and downstream of the conveying equipment in the third branch. In particular, the previously mentioned terms "upstream" and "downstream" refer to the flow direction mentioned above, that is, to the temperature-regulating medium flowing away from the conveying equipment and flowing towards the ambient air cooler or the drive motor, or the temperature-regulating medium flowing through the third branch.

[0035] Temperature detection equipment is also configured, for example, to detect, that is, to measure, the fourth temperature of the ambient environment of the motor vehicle mentioned earlier. Furthermore, temperature detection equipment is configured, for example, to detect the fifth temperature of the electric storage device. Therefore, for example, a first temperature sensor is arranged to detect the first temperature upstream of the ambient air cooler in the first branch line and, more particularly, downstream of the conveyor. For example, a second temperature sensor is arranged to detect the second temperature upstream of the drive unit in the fifth branch line and, more particularly, downstream of the conveyor. Furthermore, for example, a third temperature sensor is arranged to detect, that is, to measure the third temperature upstream of the first branch line and upstream of the second branch line in the third branch line and, more particularly, downstream of the conveyor. The fourth temperature sensor is, for example, an ambient temperature sensor, by which the fourth temperature can be detected, and thus the ambient temperature can be detected. The fifth temperature sensor for detecting the fifth temperature is, for example, arranged in the electric storage device.

[0036] Furthermore, the temperature control device includes valve devices, by means of which the branches of the temperature control circuit can be interconnected. For this purpose, the valve devices (especially by means of control valve devices) can be switched to different switching states, in which the branches are interconnected via the valve devices. Here, the switching states differ from one another, for example, in the interconnection of their branches. For example, the valve devices can be electrically or electronically controlled. For example, the valve devices have an electronic computing device, also called a controller, which can provide, for example, control signals, especially electrical ones. The valve devices can receive such a control signal, thereby controlling or being able to control the valve devices. Therefore, the electronic computing device can control and thus switch between switching states, and thus switch the valve devices back and forth. In particular, the valve devices can be electrically operated, so that, for example, the valve devices can switch between various switching states, that is, switch back and forth, by supplying electrical power to the valve devices.

[0037] An electronic computing device is configured to operate a temperature-regulating device in a first heat pump operating mode when a first temperature is greater than a predetermined first threshold and a second temperature is greater than a predetermined second threshold. In other words, in this method, the temperature-regulating device operates in the first heat pump operating mode when the first temperature is greater than the first threshold and the second temperature is greater than the second threshold. In the first heat pump operating mode, the branches of the temperature-regulating circuit are interconnected by means of valve devices such that the first, second, and fourth branches are connected in series in terms of flow technology, thereby forming a first main branch through which the temperature-regulating medium flows. This means that in the first heat pump operating mode, the temperature-regulating medium flows through the first main branch, particularly by means of a conveying device. In the first heat pump operating mode, the branches of the temperature-regulating circuit are interconnected by means of temperature-regulating devices such that no flow of the temperature-regulating medium occurs through the third and fifth branches. In other words, although the temperature-regulating medium is conveyed through the first main branch line by means of a conveying device, such that the temperature-regulating medium flows through the first main branch line, the temperature-regulating medium does not flow through the third branch line nor through the fifth branch line, because this is blocked, for example, by means of a valve device.

[0038] An electronic computing device is configured to operate a temperature-regulating device in a second heat pump operating mode when a second temperature is greater than a first threshold and less than a third threshold, which is larger than the first threshold, and greater than the ambient temperature. In other words, in this method, the temperature-regulating device operates in a second heat pump operating mode when the second temperature is greater than the first threshold, less than the third threshold, and greater than the ambient temperature, wherein the third threshold is greater than the first threshold. In the second heat pump operating mode, the branches of the temperature-regulating circuit are interconnected by means of valve devices such that the second and fourth branches are connected in series in terms of flow technology, thereby forming a second main branch through which the temperature-regulating medium flows. This means that in the second heat pump operating mode, the temperature-regulating medium flows through the second main branch, for example, by means of a conveying device, in this method. In the second heat pump operating mode, no flow of the temperature-regulating medium occurs through the first, third, and fifth branches. In other words, although the temperature-regulating medium flows through the second main branch in the second heat pump operating mode, especially in the manner in which the conveying device delivers the temperature-regulating medium through the second main branch in the method and in the second heat pump operating mode, the temperature-regulating medium does not flow through the first branch, does not flow through the third branch and does not flow through the fifth branch, because this is blocked, for example, by means of a valve device.

[0039] The electronic computing device is configured to operate the temperature-regulating device in a third heat pump operating mode when a third temperature is greater than a fifth temperature and greater than the ambient temperature, and the fifth temperature is less than a predetermined fourth threshold. In this third heat pump operating mode, the branches are interconnected via valve devices such that the second, third, and fourth branches are connected in series, thereby forming a third main branch through which the temperature-regulating medium flows. Furthermore, in the third heat pump operating mode, no flow of the temperature-regulating medium occurs through the first and fifth branches. This means that although the temperature-regulating medium flows through the third main branch, for example, by a conveying device transporting the temperature-regulating medium through the third main branch, the temperature-regulating medium does not flow through the first branch nor through the fifth branch, because this is prevented, for example, by means of valve devices.

[0040] An electronic computing device is configured to enable a temperature-regulating device to operate in a fourth heat pump operating mode when a fifth temperature is greater than a fourth threshold, a third temperature is greater than a first temperature, less than a third threshold, and greater than a first threshold, and a second temperature is greater than a second threshold. In other words, the temperature-regulating device operates in the fourth heat pump operating mode in the method described above, and particularly by means of an electronic computing device, when the fifth temperature is greater than the fourth threshold, when the third temperature is greater than the first temperature, less than a third threshold, and greater than a first threshold, and when the second temperature is greater than the second threshold. In the fourth heat pump operating mode, the branches of the temperature-regulating loop are interconnected by means of valve devices such that the first and second branches are connected in series in terms of flow technology, thereby forming a fourth main branch through which the temperature-regulating medium flows. This means that in the method described above, in the fourth heat pump operating mode, the temperature-regulating medium flows through the fourth main branch, particularly by means of conveying the temperature-regulating medium through the fourth main branch in the fourth heat pump operating mode. Specifically, the fourth main branch is the previously mentioned first loop branch.

[0041] In the fourth heat pump operating mode, the third and fourth branches form a fifth main branch through which the temperature-regulating medium flows, and the fifth main branch is fluidly separated from the fourth main branch. This means that in the method, in the fourth heat pump operating mode, the temperature-regulating medium also flows through the fifth main branch, for example, by means of a conveying device in the fourth heat pump operating mode to transport the temperature-regulating medium through the fifth main branch. However, here, the fifth and fourth main branches are fluidly separated from each other by means of a valve device, such that the temperature-regulating medium flowing through the fourth main branch does not flow through the fifth main branch, and vice versa. In particular, the fifth main branch is the previously mentioned second loop branch.

[0042] Furthermore, in the fourth heat pump operating mode, the branches of the temperature control circuit are interconnected by means of valve devices to prevent the flow of the temperature control medium through the fifth branch. This means that although the temperature control medium flows through the fourth main branch and the fifth main branch in the fourth heat pump operating mode, for example by conveying the temperature control medium through the fourth and fifth main branches by means of a conveying device, the temperature control medium does not flow through the fifth branch in the fourth heat pump operating mode because this is prevented, for example, by means of valve devices.

[0043] Furthermore, the electronic computing device is configured to enable the temperature control device to operate in a fifth heat pump operating mode when the fifth temperature is greater than the fourth threshold, the third temperature is greater than the first temperature, less than the third threshold, and greater than the first threshold, and the second temperature is less than the second threshold. In other words, when the fifth temperature is greater than the fourth threshold, when the third temperature is greater than the first temperature, less than the third threshold, and greater than the first threshold, and when the second temperature is less than the second threshold, the temperature control device operates in the fifth heat pump operating mode, for example, in the method described above, particularly by means of the electronic computing device. In the fifth heat pump operating mode, the branches of the temperature control circuit are interconnected by means of valve devices such that the second branch forms a sixth main branch through which the temperature control medium flows. This means that in the method described above, in the fifth heat pump operating mode, the temperature control medium flows through the sixth main branch and thus through the second branch, for example, by means of a conveying device conveying the temperature control medium through the sixth main branch in the method described above and in the fifth heat pump operating mode. In particular, in the fifth heat pump operating mode, the sixth main branch is the previously mentioned drive motor branch.

[0044] In the fifth heat pump operating mode, the branches of the temperature control circuit are interconnected by valve devices such that the third and fourth branches form a seventh main branch through which the temperature control medium flows, and this seventh main branch is fluidly separated from the sixth main branch. This means that in the method described above, in the fifth heat pump operating mode, the temperature control medium flows through the seventh main branch, for example, by means of a conveying device. However, here, the sixth and seventh main branches are fluidly separated from each other, such that the temperature control medium flowing through the sixth main branch does not flow through the seventh main branch, and vice versa. Furthermore, in the fifth heat pump operating mode, the branches of the temperature control circuit are interconnected by valve devices such that the temperature control medium does not flow through the first and fifth branches. This means that although in the fifth heat pump operating mode, the temperature-regulating medium flows through the sixth and seventh main branches, particularly by means of a conveying device, the temperature-regulating medium does not flow through the first branch or the fifth branch, because this is prevented, for example, by means of a valve device. Specifically, in the fifth heat pump operating mode, the seventh main branch is the previously mentioned accumulator branch.

[0045] By switching the valve device between states as needed and thereby activating the corresponding heat pump operating mode, the temperature of both the vehicle's interior and the electric accumulator can be regulated as needed, and thus particularly advantageously, maintained within the previously mentioned temperature range. This ensures particularly efficient operation of the vehicle. In particular, the invention avoids both excessively high and excessively low temperatures in the accumulator, while simultaneously preventing unfavorable temperatures in the interior space, such as both excessively high and excessively low temperatures. This ensures effective and efficient operation of the accumulator while providing or maintaining particularly comfortable conditions for occupants within the interior space.

[0046] In the first heat pump operating mode, or in the first heat pump operating mode, heat provided by the drive motor and heat from the surrounding environment can be utilized to heat the cabin air and thus the interior space, particularly via the first heat exchanger and the refrigerant heat exchanger. Heat from the electric storage device is therefore not utilized or is unavailable. In the second heat pump operating mode, or in the second heat pump operating mode, only heat provided by the motor, i.e., waste heat, can be utilized with respect to the surrounding environment, drive motor, and electric storage device, particularly as previously explained and here particularly via the refrigerant heat exchanger, to heat the cabin air and thus the interior space. In the third heat pump operating mode, or in the third heat pump operating mode, only heat provided by the drive motor, i.e., waste heat, can be utilized with respect to the surrounding environment and drive motor, particularly via the first heat exchanger and here particularly via the refrigerant heat exchanger, to heat the cabin air and thus the interior space, and the remaining heat provided by the drive motor can be utilized to heat the electric storage device, i.e., to provide heating. In or through the fourth heat pump operating mode, for example, only the heat provided by the electric energy storage unit, i.e., waste heat, is utilized with respect to the surrounding environment, the drive unit, and the electric energy storage unit, in order to heat, i.e., provide heating, particularly via the first heat exchanger (refrigeration unit) and, for example, also via a refrigerant heat exchanger. The heat that may be provided or available by the drive unit, i.e., waste heat, can be discharged to the surrounding environment, for example, via an ambient air cooler, thereby cooling the drive unit. In or through the fifth heat pump operating mode, for example, only the heat provided by the electric energy storage unit, i.e., waste heat, can be utilized with respect to the surrounding environment, the electric energy storage unit, and the drive unit, in order to heat, i.e., provide heating, particularly via the first heat exchanger and, more particularly, also via a refrigerant heat exchanger. Here, the temperature-regulating medium flowing through the second branch line and thus through the drive motor does not flow through it, but bypasses the ambient air cooler, specifically via an ambient air line bypassing the ambient air cooler, also known as a bypass line. This also ensures favorable temperature regulation of the drive motor. The invention provides an advantageous operating strategy according to which the temperature of the electric accumulator can be efficiently regulated, thereby placing the accumulator, for example, within the previously mentioned temperature range or at a favorable temperature, and then maintaining it within or at that temperature range, while simultaneously ensuring favorable temperature regulation of the internal space.

[0047] To achieve particularly advantageous temperature control, one embodiment of the invention specifies that, in the third heat pump operating mode, the first branch flows through the temperature-regulating medium and the second branch is fluidly closed by means of a valve device. This means that, in the method, in the third heat pump operating mode, the temperature-regulating medium flows through the first branch and therefore through the accumulator but not through the second branch, that is, it does not bypass the electric accumulator.

[0048] Another implementation is characterized in that, in the fourth heat pump operating mode, the first branch flows through the temperature-regulating medium and the second branch is fluidly closed by means of a valve device, thereby enabling particularly advantageous temperature regulation.

[0049] In another particularly advantageous embodiment of the invention, it is specified that in the fifth heat pump operating mode, the first branch flows through the temperature-regulating medium and the second branch is fluidly closed by means of a valve device, thereby ensuring particularly advantageous temperature regulation (especially for electric energy storage devices).

[0050] In another particularly advantageous embodiment of the invention, the electronic computing device is also configured to operate the temperature control device in a sixth heat pump operating mode when the second temperature is less than the second threshold and the third temperature is less than the third threshold and greater than the first threshold. Therefore, for example, in the method described above, it is specified that when the second temperature is less than the second threshold and when the third temperature is less than the third threshold and greater than the first threshold, the temperature control device operates, in particular, in the sixth heat pump operating mode by means of the electronic computing device. In the sixth heat pump operating mode, the branches of the temperature control circuit are interconnected by means of valve devices such that the second branch forms an eighth main branch through which the temperature control medium flows. Therefore, for example, in the method described above, it is specified that in the sixth heat pump operating mode, the temperature control medium flows through the eighth main branch and thus through the second branch, for example, by means of a conveying device conveying the temperature control medium through the eighth main branch. In particular, in the sixth heat pump operating mode, the eighth main branch is the previously mentioned drive motor branch.

[0051] In the sixth heat pump operating mode, the branches of the temperature control circuit are interconnected by means of temperature control equipment so that the temperature control medium flows through the fifth end side. In this method, in the sixth heat pump operating mode, the temperature control medium flows through the fifth end side, for example, by means of a conveying device. In the sixth heat pump operating mode, the fifth branch branches off from the eighth main branch at a branch point, wherein the branch point is arranged upstream of the drive motor and downstream of a measuring point along the flow direction of the temperature control medium flowing through the eighth main branch, at which a second temperature is detected or can be detected. For example, at the aforementioned measuring point, a second temperature sensor is arranged, particularly in the eighth main branch and therefore in the temperature control circuit. In particular, in the sixth heat pump operating mode, the fifth branch is the previously mentioned first heat exchanger branch.

[0052] In the sixth heat pump operating mode, the fifth branch line enters the eighth main branch line at an inlet, which is located downstream of the drive unit and upstream of the measuring unit along the flow direction of the temperature-regulating medium flowing through the eighth main branch line. The temperature-regulating medium flowing through the fifth branch line thus flows from the branch section to the inlet, such that the inlet is located downstream of the branch section along the flow direction of the temperature-regulating medium flowing through the fifth branch line. In the sixth heat pump operating mode, the branches of the temperature-regulating circuit are interconnected by valve devices such that no temperature-regulating medium flows through the first branch line in the sixth heat pump operating mode. This means, particularly in the method described, that the temperature-regulating medium flows through the fifth branch line and through the eighth main branch line in the sixth heat pump operating mode, especially by means of a conveying device, while the temperature-regulating medium does not flow through the first branch line in the sixth heat pump operating mode because this is prevented, for example, by means of a valve device. Furthermore, in the sixth heat pump operating mode, the branches of the temperature control circuit are interconnected by means of valve devices, forming a ninth main branch through which the temperature control medium flows, separated from the fluid of the eighth and fifth main branches. This means that, in the method described above, in the sixth heat pump operating mode, the temperature control medium flows through the ninth main branch, for example, by means of a conveying device. Specifically, in the sixth heat pump operating mode, the ninth main branch is the previously mentioned second heat exchanger branch. However, the ninth main branch (especially by means of valve devices) is fluid-separated from the eighth and fifth main branches, such that the temperature control medium flowing through the eighth main branch does not flow through the ninth main branch, the temperature control medium flowing through the fifth branch does not flow through the ninth main branch, the temperature control medium flowing through the ninth main branch does not flow through the eighth main branch, and the temperature control medium flowing through the ninth main branch does not flow through the fifth branch. This ensures particularly advantageous and desirable temperature control. For example, in or through the sixth heat pump operating mode, heat provided solely by or originating solely from the ambient environment can be utilized to heat the cabin, particularly the interior space, with respect to the electric energy storage unit, drive unit, and surrounding environment. For this purpose, for example, a second ambient air cooler is provided attached to the ambient air cooler, also known as the first ambient air cooler. This second ambient air cooler, for example, is arranged in the fourth branch line in the sixth heat pump operating mode, or preferably connected in series with the fourth branch line in terms of flow technology, and is therefore part of the ninth main branch line. The description of the first ambient air cooler above and below can also be applied without problem to the second ambient air cooler and vice versa. Therefore, the second ambient air cooler can be circulated by air from or originating from the ambient environment. For example, through the second ambient air cooler, heat from the air or ambient air can be transferred to the temperature-regulating medium flowing through the ninth main branch line.Heat can be transferred from the temperature-regulating medium to the cooling medium via the first heat exchanger, such that heat can be transferred from the cooling medium to the cabin air, for example, particularly via the cooling medium heat exchanger and, if necessary, via the previously mentioned interior space heat exchanger. It is conceivable that, in the sixth heat pump operating mode, the temperature-regulating medium flowing through the second branch line or the eighth main branch line and thus through the drive motor surrounds, and therefore bypasses, the first ambient air cooler and thus bypasses, the second ambient air cooler, and it can also ensure favorable temperature regulation for the drive motor.

[0053] To achieve particularly advantageous temperature control, another embodiment of the invention specifies that, in the sixth heat pump operating mode, the second branch flows through the temperature-regulating medium while the first branch is fluidly closed by means of a valve device. This ensures that, particularly in the method described, in the sixth heat pump operating mode, the temperature-regulating medium flows through the second branch and thus bypasses the electric accumulator via the second branch and therefore does not flow through the electric accumulator. This also advantageously allows for temperature control of the electric accumulator.

[0054] In another particularly advantageous embodiment of the invention, the second branch line has a third branch, in which the drive motor is arranged as a first drive motor. The second branch line has a fourth branch that is technically connected in parallel with the third branch, in which a second drive motor for driving the motor vehicle, attached to the first drive motor, is arranged. The description of the first drive motor above and below can be readily applied to the second drive motor and vice versa. This enables particularly efficient operation of the motor vehicle.

[0055] To achieve particularly effective, efficient, and demand-compliant temperature control, another design embodiment of the invention specifies that an electric heating element for heating the temperature-regulating medium is arranged in the fourth branch. This means that, with the aid of the electric heating element, the temperature-regulating medium flowing through the fourth branch can be heated using electrical energy supplied to the heating element, thereby achieving demand-compliant heating of the temperature-regulating medium in the fourth branch. Preferably, with respect to the temperature-regulating medium flowing through the fourth branch and exiting the conveying equipment and flowing towards the first heat exchanger, the electric heating element is arranged downstream of the conveying equipment and upstream of the first heat exchanger (refrigeration unit). This ensures particularly effective and efficient temperature control.

[0056] Finally, it proved particularly advantageous that the conveying equipment has a first pump arranged in the second branch line for conveying the temperature-regulating medium and a second pump arranged in the third branch line for conveying the temperature-regulating medium. This enables demand-compliant, effective, and efficient temperature regulation, and preferably the corresponding pumps are electric pumps, thus capable of electrical operation.

[0057] In particular, the present invention can achieve at least the following advantages:

[0058] - Reduces heat loss compared to conventional solutions

[0059] - Receives heat from the surrounding environment

[0060] - Increase memory or unit temperature by redirecting heat flow according to demand.

[0061] -Increase the temperature of the drive unit by diverting heat flow.

[0062] - Especially when it potentially increases memory or unit temperature during restart.

[0063] -High availability of recycled and drive power

[0064] -High efficiency of energy provided by electric energy storage devices

[0065] - Avoid heating the memory device by utilizing the waste heat of the drive motor.

[0066] - By utilizing the waste heat from electric energy storage devices, drive motors, and the surrounding environment for heat pumps

[0067] - Temperature tracking of the electric energy storage device via a heat pump operation mode, also known as heat pump operation, aims to efficiently reach and maintain the temperature of the electric energy storage device, or its temperature, within the target range.

[0068] -Heating is achieved by operating a heat pump or utilizing heat through a drive motor and an electric energy storage device.

[0069] - The heat pump operates via an electric energy storage device, thus utilizing and dissipating heat.

[0070] - An advantageous strategy for the efficient diversion of existing heat flow

[0071] -For example, there is no active adjustment cost during auxiliary heating. Attached Figure Description

[0072] Further details of the invention will emerge from the following description of preferred embodiments, together with the accompanying drawings. Herein:

[0073] Figure 1 A schematic diagram of a temperature control device for a motor vehicle is shown, wherein, in Figure 1 The image vividly illustrates the first heat pump operating mode of the temperature control equipment;

[0074] Figure 2 A schematic diagram of a temperature control device is shown, which vividly illustrates the second heat pump operation mode of the temperature control device;

[0075] Figure 3A schematic diagram of a temperature control device is shown, which vividly illustrates the third heat pump operating mode of the temperature control device;

[0076] Figure 4 A schematic diagram of a temperature control device is shown, which vividly illustrates the fourth heat pump operation mode of the temperature control device;

[0077] Figure 5 A schematic diagram of a temperature control device is shown, which vividly illustrates the fifth heat pump operating mode of the temperature control device;

[0078] Figure 6 A schematic diagram of a temperature control device is shown, which vividly illustrates the sixth heat pump operating mode of the temperature control device; and

[0079] Figure 7 A schematic diagram of a temperature control device is shown, which vividly illustrates the seventh operating mode of the temperature control device. Detailed Implementation

[0080] In the figures, identical or functionally identical elements are given the same reference numerals.

[0081] Figure 1 A temperature control device 1, also simply referred to as a vehicle and preferably constructed as an automobile, especially a passenger car, is shown schematically. The temperature control device 1 has a temperature control circuit 2 through which a preferably liquid temperature control medium flows, which is preferably a component of the temperature control device 1. This temperature control circuit is also simply referred to as a temperature control loop, circuit, or loop. The temperature control circuit 2 has a first branch S1 through which the temperature control medium flows, in which a first ambient air cooler 3 is arranged. The ambient air cooler 3 is circulated by ambient air, and thus by air in the environment surrounding the vehicle, so that heat can be transferred from the temperature control medium to the ambient air via the ambient air cooler 3. The temperature control medium can thus be cooled via the ambient air cooler 3. Furthermore, the temperature control circuit 2 has a second branch S2 through which the temperature control medium flows, in which two drives 4 and 5 are arranged, as will be explained in more detail below. In the embodiment shown in the figure, the corresponding drive units 4 and 5 are constructed as corresponding motors, by means of which the motor vehicle can be electrically driven, especially purely electrically driven. For example, at least one electrical or electronic first component 6 is also arranged in the branch line S2, the first component being, for example, a power electronic device specifically configured for the drive unit 4.

[0082] Furthermore, the temperature control circuit 2 has a third branch S3 through which the temperature control medium can flow, the third branch having a first branch Z1 and a second branch Z2 as bypass branches. An electric energy storage device 7 is arranged in the first branch Z1, which is preferably a high-voltage component and is therefore also referred to as an HVS or high-voltage memory. The temperature control medium can bypass the first branch via the second branch Z2, such that the temperature control medium flowing through the second branch Z2 does not flow through the first branch Z1 and therefore does not flow through the electric energy storage device 1, which is also simply referred to as a memory or energy storage device. Figure 1 It can be seen that the second branch S2 has a third branch Z3, a drive motor 4, and currently the aforementioned component 6 is arranged in the third branch. Furthermore, the second branch S2 has a fourth branch Z4, in which the drive motor 5 is arranged. Specifically, at least when the temperature-regulating medium flows through the second branch S2 and through branches Z3 and Z4, branches Z3 and Z4 are technically connected in parallel with each other.

[0083] Furthermore, the temperature control circuit 2 has a fourth branch S4 in which a first heat exchanger 8 is arranged. The first heat exchanger 8 is also referred to as a refrigerator. The first heat exchanger 8 is also arranged in a cooling medium circuit (not shown) through which the cooling medium can flow, which is preferably arranged in conjunction with the temperature control circuit 2 and more preferably fluidly separated from the temperature control circuit 2. Heat can be exchanged between the cooling medium and the temperature control medium via the heat exchanger 8, in particular making the heat exchanger 8 function as a cooler for the temperature control medium, constructed as a cooler, or capable of operating as a cooler. Thus, heat can be transferred from the temperature control medium to the cooling medium, for example, via the heat exchanger 8, thereby cooling the temperature control medium and heating the cooling medium.

[0084] Furthermore, the temperature control circuit 2 has a fifth branch S5, in which a second heat exchanger 9 is arranged. The heat exchanger 9 is also arranged in a cooling medium circuit through which the cooling medium can flow. In particular, for the cooling medium, the second heat exchanger 9 can be configured as a cooler, function as a cooler, or be able to operate as a cooler, so that the cooling medium can be cooled, for example, by means of the heat exchanger 9. In particular, for example, the heat exchanger 9 can be a condenser or be able to operate as a condenser, so that the cooling medium can be cooled and thereby condensed by means of the heat exchanger 9. Heat can be exchanged between the temperature control medium and the cooling medium, especially in the through-branch S5, via the heat exchanger 9, in particular, so that heat can be transferred from the cooling medium to the temperature control medium, especially in the through-branch S5, via the heat exchanger 9. Since the temperature control medium is, in particular, a liquid, the heat exchanger 9 is configured, for example, as a liquid-cooled, especially water-cooled condenser, also referred to as a WCC.

[0085] The temperature control device 1 has a conveying device 10 arranged in the temperature control loop 2, by means of which the temperature control medium (especially along the flow direction) can be conveyed through the temperature control loop. Preferably, the conveying device 10 is electrically operable. The conveying device 10 will be explained in more detail below. In addition, the temperature control device 1 has a temperature detection device 11, especially arranged in the temperature control loop 2, by means of which a first temperature, also expressed as T3, of the temperature control medium in the first branch S1 upstream of the ambient air cooler 3 and downstream of the conveying device 10 can be detected, that is, measured. For this purpose, for example, the temperature detection device 11 has a first temperature sensor 12, which is arranged at a first measuring point in the temperature control loop 2, wherein the first measuring point is arranged in the branch S1 upstream of the ambient air cooler 3 and especially downstream of the conveying device 10. At the first measuring point, the first temperature sensor 12 can measure the first temperature (T3), such that the first temperature exists at the first measuring point and is the first temperature of the temperature control medium in the temperature control loop 2 at the measuring point. The temperature sensing device 11 can detect, that is, measure, the second temperature of the temperature-regulating medium in the second branch upstream of the drives 4 and 5. For this purpose, the temperature sensing device 11, for example, has a second temperature sensor 13, which is arranged at the second measuring point in the temperature-regulating loop 2, particularly in branch S2. At the second measuring point, the second temperature sensor 13 can detect, that is, measure, the second temperature, also denoted as T5, wherein the current second measuring point and therefore the second temperature sensor 13 is arranged upstream of the drives 4 and 5, and particularly downstream of the conveying device 10. In the embodiment shown in the figures, the second measuring point and therefore the second temperature sensor 13 are arranged, for example, upstream of the branch S5, particularly upstream of the branching point, along the flow direction of the temperature-regulating medium flowing through the second branch S2 and here away from the conveying device 10 and flowing towards the respective drives 4 and 5, where the branch S5 branches off from the branch S2, for example.

[0086] Temperature detection device 11 can detect, that is, measure, a third temperature of the temperature-regulating medium in the third branch S3 upstream of the first branch Z1 and upstream of the second branch Z2, and preferably downstream of the conveying device 10. For this purpose, temperature detection device 11, for example, has a third temperature sensor 14, which is arranged in the temperature-regulating loop 2 at a third measuring location. Therefore, temperature sensor 14 can detect the third temperature of the temperature-regulating medium at the third measuring location, such that the third temperature is the temperature at which the temperature-regulating medium exists at the third measuring location. Therefore, the second temperature is the second temperature of the temperature-regulating medium existing at the second measuring location. Here, the second temperature, the third temperature, and the first temperature exist in the temperature-regulating loop 2. The third measuring location is arranged upstream of branches Z1 and Z2 and downstream of the conveying device 10, along the flow direction of the temperature-regulating medium flowing from the conveying device 10 and towards branches Z1 and Z2. The third temperature is also denoted as T6. Furthermore, temperature detection device 11 can detect the ambient temperature as a fourth temperature. The fourth temperature is therefore the temperature of the ambient environment of the motor vehicle mentioned earlier. For this purpose, the temperature detection device 11, for example, has a fourth temperature sensor 15, which is also called an ambient temperature sensor. The ambient temperature sensor can detect, that is, measure, the ambient temperature. Finally, the temperature detection device 11 can detect, that is, measure, the temperature of the electric energy storage device 7, also expressed as Tz. For this purpose, the temperature detection device 11 has a fifth temperature sensor 16, which is, for example, arranged in the electric energy storage device 7. For example, the fifth temperature is, or represents, the temperature of at least one memory cell of the electric energy storage device 7.

[0087] The temperature control device 1 has a valve device 17, which currently has two valves 18 and 19. For example, valve 18 is a component external to and therefore arranged outside of valve 19, such that valve 19 is a component external to and therefore arranged outside of valve 18. Therefore, preferably, valve 18 is attached to valve 19, and preferably, valve 19 is attached to valve 18. In particular, valves 18 and 19 are constructed (especially completely) separately from each other and are therefore separate components. The corresponding valves 18, 19 and therefore valve device 17 can be switched between corresponding different switching states, especially by preferably electrically controlling the corresponding valves 18, 19 and therefore preferably electrically controlling valve device 17. For this purpose, for example, the temperature control device 1 has an electronic computing device 20, also known as a controller, which is particularly schematically shown, by means of which the corresponding valves 18, 19 and therefore valve device 17 can be controlled (especially electrically or electronically). For this purpose, for example, electronic computing device 20 can provide, in particular, electrical control signals, wherein valves 18 and 19 can receive corresponding control signals, thereby controlling the respective valves 18 and 19 and therefore valve device 17. Thus, the respective valves 18 and 19 and therefore valve device 17 can switch between different switching states, and thus switch back and forth. The corresponding switching state of valve device 17, for example, causes (especially exactly one) a corresponding heat pump operating mode, making it possible to set, that is, activate, multiple different heat pump operating modes of the temperature control device 1 in such a way that valve device 17 can switch to different switching states. Therefore, temperature control device 1 can operate in different heat pump operating modes by means of electronic computing device 20 and by means of valve device 17. Temperature control device 1 can operate in heat pump operation and thus operate as a heat pump, wherein the heat pump operating modes are different operating modes or operating conditions of the heat pump.

[0088] In particular, the temperature control device 1 can advantageously regulate the temperature of the motor vehicle, that is, cool and / or heat it, especially so that the interior space and the electric energy storage unit 7, and for example, the corresponding drive motors 4, 5, can be particularly advantageously regulated by means of a heat pump and in the corresponding heat pump operating mode. The interior space of the motor vehicle, also known as the passenger compartment or passenger space, is formed by the vehicle body, for example, constructed as a self-supporting body. In particular, the interior space can be regulated to the point that it can be heated, that is, warmed. In particular, the electric energy storage unit 7 can be advantageously regulated, that is, cooled and / or heated, so that the energy storage unit 7 can, for example, be placed within an advantageous temperature range and / or maintained within said temperature range. Unfavorable temperatures of the corresponding drive motors 4, 5 can also be avoided.

[0089] When, for example, a first temperature is greater than a predetermined first threshold and a second temperature is greater than a predetermined second threshold, the temperature control device 1, for example, switches from another heat pump operating mode to a first heat pump operating mode via the electronic computing device 20, and remains in the first heat pump operating mode as long as the first temperature is greater than the first threshold and the second temperature is greater than the second threshold. The second threshold is, for example, a target value for the second temperature, and the first threshold is, for example, the theoretical minimum value of the first temperature, which is, for example, the outlet temperature of the refrigerator (first heat exchanger 8). In the first heat pump operating mode, branches S1-5 of the temperature control loop 2 are interconnected via valve device 17, that is, via valves 18 and 19, such that the first branch S1, the second branch S2, and the fourth branch S4 are connected in series in terms of flow technology and thus form a first main branch G1. The temperature control medium flows through the first main branch in the first heat pump operating mode, while the temperature control medium does not flow through the third branch S3 and does not flow through the fifth branch S5. Figure 1 In the text, 21 represents the compensation container, which can compensate for fluctuations in the volume and amount of the temperature control medium in the temperature control circuit 2.

[0090] With the aid of electronic computing device 20, when the second temperature is greater than a first threshold and less than a third threshold (which is larger than the first threshold) and greater than the ambient temperature, the temperature regulating device 1 switches from one heat pump operating mode to a second heat pump operating mode of the heat pump operating mode. Specifically, the temperature regulating device 1 operates and remains in the second heat pump operating mode, for example, with the aid of electronic computing device 20, if and only if the second temperature is greater than the first threshold, less than the third threshold, and greater than the ambient temperature. The ambient temperature is also denoted by T0. The third threshold is, for example, the theoretical maximum value of the refrigerator's outlet temperature.

[0091] exist Figure 2 In the second heat pump operating mode shown, branches S1-5 of the temperature control loop 2 are interconnected via valve device 17 (especially in terms of flow technology), such that the second branch S2 and the fourth branch S4 are connected in series in terms of flow technology, thereby forming a second main branch G2. The temperature control medium flows through the second main branch, especially by means of conveying the temperature control medium through the second main branch G2 via conveying device 10. In the second heat pump operating mode, the temperature control medium does not flow through the first branch S1, does not flow through the third branch S3, and does not flow through the fifth branch S5. Figure 2It can be seen that in the second heat pump operation mode, the second main branch line G2 has a bypass pipe UL, also known as a bypass or bypass line, through which the ambient air cooler 3 is bypassed by or can be bypassed by the temperature regulating medium. This means that in the second heat pump operation mode, the temperature regulating medium flowing through the second main branch line G2 and therefore through the bypass pipe UL bypasses the ambient air cooler 3 via the bypass pipe UL, and therefore does not flow through the ambient air cooler 3. Currently, along the flow direction of the temperature regulating medium flowing through the main branch line G2, the bypass pipe UL is arranged downstream of the fourth branch line S4 and upstream of the second branch line S2.

[0092] exist Figure 3 The diagram illustrates a third heat pump operating mode. When the third temperature is greater than the fifth temperature and greater than the ambient temperature, and the fifth temperature is less than a predetermined fourth threshold, the temperature control device 1, for example, by means of an electronic computing device 20, switches from another heat pump operating mode, i.e., to the third heat pump operating mode, where the fourth threshold is, for example, a threshold different from the first, second, and third thresholds. The temperature control device 1, for example, by means of the electronic computing device 20, maintains and operates in the third heat pump operating mode when, for example, the third temperature is less than the third threshold and greater than the first threshold, and for example, greater than the following difference, where the difference is obtained by subtracting a value, particularly dependent on the fifth temperature, from the fifth temperature, such that, for example, the difference is a value different from the first, second, third, and fourth thresholds. In the third heat pump operating mode, branches S1-5 of the temperature control loop 2 are interconnected via valve device 17 and therefore via valves 18 and 19, such that the second branch S2, the third branch S3, and the fourth branch S4 are connected in series in terms of flow technology, thereby forming a third main branch G3 through which the temperature control medium flows. The temperature control medium flows through the third main branch, for example, by means of conveying the temperature control medium through the third main branch G3 via conveying device 10. In the third heat pump operating mode, the temperature control medium does not flow through the first branch S1, nor through the fifth branch S5, and for example, does not flow through the bypass line UL.

[0093] Figure 4 The fourth heat pump operation mode of the temperature control device 1 is illustrated figuratively. When the fifth temperature is greater than the fourth threshold, the third temperature is greater than the first temperature, less than the third threshold, and greater than the first threshold, and the second temperature is greater than the second threshold, the temperature control device 1 operates in the fourth heat pump operation mode, for example, with the aid of an electronic computing device 20. Figure 5The diagram illustrates a fifth heat pump operating mode within the aforementioned heat pump operating modes. In this mode, when the fifth temperature is greater than a fourth threshold, the third temperature is greater than the first temperature, less than the third threshold, and greater than the first threshold, and the second temperature is less than the second threshold, the electronic computing device 20 operates the temperature regulating device 1 in the fifth heat pump operating mode. If, for example, the fifth temperature is greater than the fourth threshold, then, especially when the third temperature is greater than the first temperature, less than the third threshold, and greater than the first threshold, and the second temperature is greater than the second threshold, the temperature regulating device 1, for example, uses the electronic computing device 20 to switch from another heat pump operating mode within the heat pump operating modes, that is, to the fourth heat pump operating mode. If the fifth temperature is greater than the fourth threshold, then, especially when the third temperature is greater than the first temperature, less than the third threshold, and greater than the first threshold, and the second temperature is less than the second threshold, the temperature regulating device 1, for example, uses the electronic computing device 20 to switch from another heat pump operating mode within the heat pump operating modes, that is, to the fifth heat pump operating mode. When the third temperature is greater than the fifth temperature and greater than the ambient temperature, and the fifth temperature is less than the fourth threshold, the temperature control device 1, for example by means of the electronic computing device 20, switches from another heat pump operating mode in the heat pump operating mode, that is, switches to the third heat pump operating mode, and the temperature control device 1, for example by means of the electronic computing device 20, maintains and operates in the third heat pump operating mode as long as the third temperature is greater than the difference, less than the third threshold and greater than the first threshold.

[0094] Temperature control device 1 operates and remains in a fourth heat pump operating mode, for example, using electronic computing device 20, if the third temperature is greater than the first temperature, less than the third threshold, and greater than the first threshold, and the second temperature is greater than the second threshold. This condition is also referred to as a compliance condition or acceptance condition. If, for example, the fifth temperature is greater than the fourth threshold, and however, at least one of the previously mentioned acceptance conditions is no longer met, then when the fifth temperature is greater than the fourth threshold, temperature control device 1 switches from the fourth heat pump operating mode to the fifth heat pump operating mode, for example, using electronic computing device 20. This fifth heat pump operating mode occurs if and only if the third temperature is greater than the first temperature, less than the third threshold, and greater than the first threshold, and the second temperature is less than the second threshold. The latter condition is also referred to as a second acceptance condition or second compliance condition. If, for example, the fifth temperature is greater than the fourth threshold, and however, at least one of the second receiving conditions is no longer met, then the temperature control device 1 switches from the fifth heat pump operating mode to the fourth heat pump operating mode, for example by means of the electronic computing device 20, and the temperature control device 1 operates and remains in the fourth heat pump operating mode for such a long time and preferably only such a long time, for example, if the third temperature is greater than the first temperature, less than the third threshold and greater than the first threshold and the second temperature is greater than the second threshold.

[0095] Figure 6 The sixth heat pump operation mode is illustrated in the above heat pump operation mode, wherein when the second temperature is less than the second threshold and the third temperature is less than the third threshold and greater than the first threshold, the temperature control device 1 operates in the sixth heat pump operation mode with the aid of the electronic computing device 20.

[0096] Depend on Figures 4 to 6As can be seen, in the fourth heat pump operation mode, branches S1-5 of the temperature control loop 2 are interconnected by means of valve device 17, such that the first branch S1 and the second branch S2 are connected in series in terms of flow technology, thereby forming a fourth main branch G4 through which the temperature control medium flows. The temperature control medium flows through the fourth main branch, especially by means of conveying the temperature control medium through the fourth main branch G4 by means of conveying device 10. In the fourth heat pump operation mode, the third branch S3 and the fourth branch S4 are connected in series in terms of flow technology, thereby forming a fifth main branch G5 through which the temperature control medium flows. The temperature control medium flows through the fifth main branch, especially by means of conveying the temperature control medium through the fifth main branch G5 by means of conveying device 10. Here, the main branches G4 and G5 are fluidly separated from each other, especially by means of valve device 17. In the fourth heat pump operation mode, the temperature regulating medium does not flow through the fifth branch S5, so that the temperature regulating medium does not flow through the fifth branch S5.

[0097] exist Figure 5 In the fifth heat pump operating mode illustrated in the diagram, branches S1-5 of the temperature control loop 2 are interconnected via valve device 17, such that the second branch S2 forms the sixth main branch G6. The temperature control medium flows through this sixth main branch, particularly by means of a conveying device 10. In the fifth heat pump operating mode, the third branch S3 and the fourth branch S4 are connected in series in terms of flow technology, thereby forming the seventh main branch G7. The temperature control medium flows through this seventh main branch, particularly by means of a conveying device 10. In the fifth heat pump operating mode, main branches G6 and G7 are fluidly separated, particularly by means of valve device 17. Furthermore, in the fifth heat pump operating mode, the temperature control medium does not flow through the first branch S1 nor through the fifth branch S5. Figure 5 It can be seen that in the fifth heat pump operation mode, the bypass line UL is a component of the sixth main branch line G6, such that the bypass line UL is arranged or extended upstream of the conveying equipment 10 along the flow direction of the temperature regulating medium flowing through the main branch line G6 and is arranged or extended downstream of the branch line S2, especially downstream of the corresponding drives 4 and 5.

[0098] exist Figure 6In the optional sixth heat pump operating mode illustrated in the diagram, branches S1-5 are interconnected via valve device 17, such that the second branch S2 forms the eighth main branch G8. The temperature-regulating medium flows through this eighth main branch, particularly by means of a conveying device 10. In the sixth heat pump operating mode, the temperature-regulating medium flows through the fifth branch S5 and thus through the heat exchanger 9, for example, by means of a conveying device 10. In the sixth heat pump operating mode, the fifth branch S5 branches off from the eighth main branch G8 at a branch point A1, wherein, along the flow direction of the temperature-regulating medium flowing through the main branch G8, the branch point A1 is located upstream of the drives 4 and 5 and downstream of the second measuring point, where a second temperature is measured and, for example, a temperature sensor 13 is arranged. In the sixth heat pump operating mode, branch line S5 enters the eighth main branch line G8 at inlet M, wherein inlet M is arranged downstream of the drive units 4 and 5 and upstream of the second measuring unit along the flow direction of the temperature-regulating medium flowing through the main branch line G8. In the sixth heat pump operating mode, no temperature-regulating medium flows through the first branch line S1, because, for example, the temperature-regulating medium bypasses the first branch line S1 via branch line S5 and / or bypass line UL, which is part of the main branch line G8 in the sixth heat pump operating mode. In the sixth heat pump operating mode, the third branch line S3 and the fourth branch line S4 are connected in series with each other in terms of flow technology, thereby forming the ninth main branch line G9. The temperature-regulating medium flows through the ninth main branch line, particularly by means of a conveying device 10, such that the temperature-regulating medium is conveyed through the main branch line. Here, the main branches G8 and G9 are fluidly separated from each other, particularly by means of valve device 17.

[0099] according to Figure 6The temperature control device 1 has an ambient air heat exchanger 22, which is particularly attached to the ambient air cooler 3 and is also attached to heat exchangers 8 and 9 and is circulated by the aforementioned ambient air. For example, the ambient air heat exchanger 22 is arranged in an additional branch line SZ, wherein, for example in the sixth heat pump operation mode, the additional branch line SZ and therefore the ambient air heat exchanger 22 are part of the main branch line G9, such that the additional branch line SZ is arranged downstream of the third branch line S3 and upstream of the fourth branch line S4 along the flow direction of the temperature-regulating medium flowing through the main branch line G9. Through the ambient air heat exchanger 22, heat can be exchanged between the ambient air circulating and / or flowing through the ambient air heat exchanger 22 and the temperature-regulating medium flowing through the ambient air heat exchanger 22 in the sixth heat pump operation mode, particularly such that heat can be transferred from the ambient air to the temperature-regulating medium via the ambient air heat exchanger 22. The heat transferred to the temperature-regulating medium via the ambient air heat exchanger 22 and originating from the surrounding environment or ambient air can, for example, be supplied to the refrigeration unit (heat exchanger 8) and thus utilized, for example, by the refrigeration unit (heat exchanger 8) to regulate the temperature of the air to be supplied to the interior space or the air in the interior space, also known as cabin air. Furthermore, the heat transferred to the temperature-regulating medium via the ambient air heat exchanger 22 and originating from the surrounding environment or ambient air can, for example, be supplied to the interior space and / or the heat exchanger 9 via a refrigerant circuit, in which both the refrigeration unit (heat exchanger 8) and the heat exchanger 9 are arranged. It can be seen that an electric heating element 23 is arranged in the branch line S4, particularly upstream of the heat exchanger 8; this electric heating element is, for example, constructed as an electric direct-flow heater. With the aid of the electric heating element 23, the temperature-regulating medium flowing through the electric heating element 23 or the branch line S4 can be heated using electrical energy. Therefore, electric auxiliary heating can be achieved, for example, in the sixth heat pump operating mode by means of the electric heating element 23, so that the interior space can be particularly advantageously conditioned. The sixth heat pump operating mode is particularly meaningful when neither the electric accumulator 7 nor the drives 4 and 5 provide waste heat that can be used for conditioning the interior space. To achieve the heat pump operating mode, for example, the valve device 17 has a third valve 24 as an additional valve, wherein the valves 18, 19 and 24 are constructed separately from each other and are particularly arranged outside each other.

[0100] With the aid of the fifth heat pump operating mode, heat can be received from the electric storage unit 7, for example, and supplied to the refrigerator, and then, via the refrigerator, to the cabin air or interior space. This is particularly advantageous when there is excess heat at the storage unit 7, so the electric storage unit 7 can provide heat that can be used for temperature regulation, especially heating, of the interior space, particularly waste heat. The fourth heat pump operating mode enables the receipt of heat from or from the storage unit 7 and the supply of heat to the refrigerator, and then, via the refrigerator, to the cabin air and thus to the interior space. This is particularly advantageous when there is excess heat at the storage unit 7. In the third heat pump operating mode, heat can be received from or from the drives 4, 5, for example, and supplied to the refrigerator and thus to the cabin air or interior space, and / or the storage unit 7 can be reheated (especially via the refrigerator). The third heat pump operating mode is particularly advantageous when the accumulator 7 is cold and therefore has a low temperature, and there is excess heat at the drives 4 and 5, so that the drives 4 and 5 provide heat, especially waste heat, which can be used to heat the internal space and / or the accumulator 7.

[0101] The second heat pump operation mode enables the absorption of heat from the drives 4 and 5 and the supply of that heat to the refrigerator, and thus, for example, to the interior space or cabin air. This is particularly advantageous when the first temperature is higher than the ambient temperature. The first heat pump operation mode enables the extraction or reception of heat from the surrounding environment and, for example, the reheating of the drives 4 and 5, and, for example, the supply of the remainder of the heat from the surrounding environment to the refrigerator, and thus, the supply of that heat to the cabin air or interior space via the refrigerator, which is particularly advantageous when the first temperature is lower than the ambient temperature.

[0102] For example, it can be seen that additional electrical or electronic components 25 can be arranged in the fifth branch S5, such as power electronic devices, particularly those configured for the drive motor 5. Here, for example, a heat exchanger 9 is arranged in the fifth branch of branch S5 and the component 25 is arranged in the sixth branch of branch S5, wherein the fifth and sixth branches can be connected in parallel with each other in terms of flow technology. For example, it can also be seen that an ambient air cooler 3 and, for example, an ambient air heat exchanger 22, can be equipped with a fan 26, particularly electrically operable, by means of which ambient air can be supplied to the ambient air cooler 3 and the ambient air heat exchanger 22.

[0103] The conveying device 10 includes a first pump 27 arranged in branch line S2. Furthermore, the conveying device 10 includes an additional second pump 28 arranged in branch line S3. With the aid of, for example, electrically operated pumps 27 and 28, the temperature-regulating medium can be advantageously conveyed through the temperature-regulating loop 2 in a corresponding heat pump operating mode.

[0104] In each figure, the flow path not traversed by the temperature regulating medium is shown as a dashed line, and the flow path traversed by the temperature regulating medium is shown as a solid line.

[0105] Figure 7 The seventh operating mode of the temperature control device 1 is shown, wherein the seventh operating mode is preferably the seventh heat pump operating mode. Figure 7 The seventh operating mode, as vividly illustrated in the image, basically corresponds to... Figure 5 The fifth heat pump operating mode shown in the figure includes the following differences:

[0106] Temperature control circuit 2 has a connecting guide 29. In the seventh operating state, a portion of the temperature control medium flowing through the seventh main branch G7 branches off from the main branch G7 at a first connection point V1 and is introduced into the connecting guide 29. The first connection point is located between branches S3 and S4 along the flow direction of the temperature control medium flowing through the main branch G7, and is located downstream of the heat exchanger 8 (refrigeration unit) and upstream of branches Z1 and Z2. The temperature control medium branching from the main branch G7 and introduced into the connecting guide 29 flows through the connecting guide 29 and is guided by the connecting guide 29 to the second connection point V2. At the second connection point, the temperature control medium flowing through the connecting guide 29 flows out of the connecting guide 29 and into the bypass pipe UL, and from the bypass pipe into branch S2, and thereby into the sixth main branch G6. Therefore, for example, connecting guide 29 belongs to the sixth main branch G6, which is thus connected, for example, in series with S4 and in parallel with branch S3 in terms of flow technology. In other words, branch S4 branches into branch S3 and the main branch G6, which includes bypass line UL and branch S2, and is connected to branch S4, which is also connected to branch S3, via valve device 17, especially via valve 18. In contrast, for example, in the fifth heat pump operation mode, the sixth main branch G6 and the seventh main branch G7 are connected in parallel with each other in terms of flow technology.

[0107] List of reference numerals

[0108] 1. Temperature control equipment

[0109] 2 Temperature control circuit

[0110] 3. Ambient air cooler

[0111] 4 drive units

[0112] 5 drive units

[0113] 6 parts

[0114] 7-Electric Storage

[0115] 8 First heat exchanger

[0116] 9 Second heat exchanger

[0117] 10 Conveying Equipment

[0118] 11 Temperature Detection Equipment

[0119] 12 First Temperature Sensor

[0120] 13 Second Temperature Sensor

[0121] 14 Third Temperature Sensor

[0122] 15. Fourth temperature sensor

[0123] 16 Fifth Temperature Sensor

[0124] 17 Valve Equipment

[0125] 18 valves

[0126] 19 valves

[0127] 20 electronic computing devices

[0128] 21 Compensation Container

[0129] 22 Ambient air heat exchanger

[0130] 23 Electric heating elements

[0131] 24 valves

[0132] 25 parts

[0133] 26 ventilation fans

[0134] 27 pumps

[0135] 28 pumps

[0136] 29 Connecting guide

[0137] Branch A

[0138] G1 First Branch Line

[0139] G2 Second Branch Line

[0140] G3 Third Branch Line

[0141] G4 Fourth Branch Line

[0142] G5 Fifth Branch Line

[0143] G6 Sixth Branch Line

[0144] G7 Seventh Branch Line

[0145] G8 Eighth Branch Line

[0146] G9 Ninth Branch Line

[0147] M inlet site

[0148] S1 First Branch

[0149] S2 Second Branch

[0150] S3 Third Branch

[0151] S4 Fourth Branch

[0152] S5 Fifth Branch

[0153] SZ Additional Branch Line

[0154] UL bypass piping

[0155] V1 First Connection Part

[0156] V2 Second Connection Part

[0157] Z1 First Branch Road

[0158] Z2 Second Branch Road

[0159] Z3 Third Branch Road

[0160] Z4 Fourth Branch Road

Claims

1. A temperature control device (1) for motor vehicles, the temperature control device comprising: - A temperature regulating circuit (2) through which a temperature regulating medium can flow, wherein an ambient air cooler (3), a drive motor (4) for driving the motor vehicle, an electric energy storage device (7), a first heat exchanger (8) also arranged in a cooling medium circuit through which a cooling medium can flow, and a second heat exchanger (9) also arranged in the cooling medium circuit, wherein heat can be exchanged between the cooling medium and the temperature regulating medium via the first heat exchanger, and heat can be exchanged between the cooling medium and the temperature regulating medium via the second heat exchanger; - Temperature detection device (11), the temperature detection device being configured to detect a first temperature of the temperature regulating medium upstream of the ambient air cooler (3), a second temperature of the temperature regulating medium upstream of the drive unit (4), a third temperature of the temperature regulating medium upstream of the energy storage unit (7), an ambient temperature as a fourth temperature of the ambient environment of the motor vehicle, and a fifth temperature of the energy storage unit (7); and - Electronic computing device (20), said electronic computing device being configured to enable the temperature regulating device (1): --When the first temperature is greater than a predetermined first threshold and the second temperature is greater than a predetermined second threshold, the system operates in a first heat pump operating mode. In the first heat pump operating mode, the ambient air cooler (3), the drive unit (4), and the first heat exchanger (8) are connected in series and no temperature regulating medium flows through the accumulator (7) and the second heat exchanger (9). --When the second temperature is greater than the first threshold and less than the third threshold which is greater than the first threshold and greater than the ambient temperature, the second heat pump operates in the second heat pump operating mode, in which the drive motor (4) and the first heat exchanger (8) are connected in series and no temperature regulating medium flows through the ambient air cooler (3), the accumulator (7) and the second heat exchanger (9).

2. The temperature control device (1) according to claim 1, characterized in that, The electronic computing device (20) is configured to allow the temperature control device (1) to operate in a third heat pump operating mode when the third temperature is greater than the fifth temperature and greater than the ambient temperature and the fifth temperature is less than a predetermined fourth threshold. In the third heat pump operating mode, the drive unit (4), the accumulator (7) and the first heat exchanger (8) are connected in series with each other and no temperature control medium flows through the ambient air cooler (3).

3. The temperature control device (1) according to claim 2, characterized in that, The electronic computing device (20) is configured such that the temperature regulating device (1) operates in a fourth heat pump operating mode when the fifth temperature is greater than the fourth threshold, the third temperature is greater than the first temperature, less than the third threshold and greater than the first threshold, and the second temperature is greater than the second threshold. In the fourth heat pump operating mode, the ambient air cooler (3) and the drive unit (4) are connected in series with each other and thus arranged in a first loop branch through which the temperature regulating medium flows, the accumulator (7) and the first heat exchanger (8) are connected in series with each other and thus arranged in a second loop branch through which the temperature regulating medium flows, which is fluidly separated from the first loop branch, and no flow of the temperature regulating medium occurs through the second heat exchanger (9).

4. The temperature control device (1) according to claim 3, characterized in that, The electronic computing device (20) is configured such that the temperature regulating device (1) operates in a fifth heat pump operating mode when the fifth temperature is greater than the fourth threshold, the third temperature is greater than the first temperature, less than the third threshold and greater than the first threshold, and the second temperature is less than the second threshold. In the fifth heat pump operating mode, the drive motor (4) is arranged in a drive motor branch through which the temperature regulating medium flows, the accumulator (7) and the first heat exchanger are connected in series with each other and are thus arranged in an accumulator branch through which the temperature regulating medium flows, which is fluidly separated from the drive motor branch, and no flow of the temperature regulating medium occurs through the ambient air cooler (3) and the second heat exchanger (8).

5. The temperature control device (1) according to claim 4, characterized in that, The electronic computing device (20) is configured such that the temperature regulating device (1) operates in a sixth heat pump operating mode when the second temperature is less than the second threshold and the third temperature is less than the third threshold and greater than the first threshold. In the sixth heat pump operating mode, the drive motor (4) is arranged in the drive motor branch through which the temperature regulating medium flows, the second heat exchanger (9) is arranged in the first heat exchanger branch through which the temperature regulating medium flows, no temperature regulating medium flows through the ambient air cooler (3), the accumulator (7) and the first heat exchanger (8) are arranged in the second heat exchanger branch through which the temperature regulating medium flows and are connected in series with each other, and the second heat exchanger branch is fluidly separated from the drive motor branch and the first heat exchanger branch.

6. A motor vehicle, said motor vehicle including the temperature control device (1) according to any one of the preceding claims.

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