Temperature-control device for a utility vehicle, and utility vehicle

Abstract

The invention relates to a temperature-control device (3) for controlling the temperature of an energy storage device (5) of a utility vehicle (1), comprising: - a temperature-control fluid line (9) which is designed in such a way that a temperature-control fluid for the energy storage device (5) can be conducted through it, wherein the temperature-control fluid line (9) branches at a first branch (17.1) into a first partial fluid line (19.1) and into a second partial fluid line (19.2), wherein the first partial fluid line (19.1) and the second partial fluid line (19.2) rejoin one another in the temperature-control fluid line (9) at a second branch (17.2) downstream of the first branch (17.1); - a heating device (11) which is thermally coupled to the first partial fluid line (19.1) in such a way that the heating device (11) can heat a heating fluid flow portion (20.1) of an active fluid flow portion (18.1) of the temperature-control fluid flowing through the first partial fluid line (19.1); - a cooling device (13) which is thermally coupled to the second partial fluid line (19.2) in such a way that the cooling device (13) can cool a cooling fluid flow portion (20.2) of the active fluid flow portion (18.1) flowing through the second partial fluid line (19.2), and - a first valve (15.1) which is designed to adjust the heating fluid flow portion (20.1) and the cooling fluid flow portion (20.2). The invention also relates to a utility vehicle (1) having such a temperature-control device (3).

Description

[0001] Temperature control device for a commercial vehicle and commercial vehicle

[0002] The invention relates to a temperature control device for temperature control of an energy storage device of a commercial vehicle and a commercial vehicle with such a temperature control device.

[0003] Commercial vehicles can be equipped with an electric drive. In a fully electric commercial vehicle, the electric drive is the vehicle's sole source of power. A hybrid commercial vehicle, on the other hand, has both an electric drive and an internal combustion engine. The energy for the electric drive is typically stored in an energy storage device. It is also possible for the energy required for the electric drive to be generated by a fuel cell within the vehicle. The energy storage cells of the device need to be cooled at relatively warm ambient temperatures and heated at relatively cold ambient temperatures. For this purpose, a temperature control fluid can be circulated through the energy storage device, thereby heating or cooling it.The temperature control fluid typically flows first through a heating device and then through a cooling device, or vice versa. Depending on whether the temperature control fluid is to be heated or cooled, either the heating device or the cooling device is activated. The heating device can be an electric heating element. However, this requires a comparatively large amount of energy to heat the energy storage device, via the temperature control fluid, to a predetermined temperature. The cooling device can incorporate a thermodynamic cycle that cools the temperature control fluid, particularly by recooling it. One or more temperature control fluid lines connect the energy storage device, the heating device, and the cooling device, and these lines may include various valves and pipe components. Due to their number, such a temperature control device requires a relatively large amount of installation space.Furthermore, heating the energy storage device by the electric heating device using the temperature control fluid is comparatively energy-intensive. The invention therefore aims to provide a temperature control device for regulating the temperature of an energy storage device in a commercial vehicle, and a commercial vehicle with such a temperature control device, whereby the aforementioned disadvantages are reduced, or preferably eliminated.

[0004] The problem is solved by providing the present technical teaching, in particular the teaching of the independent claims and of the preferred embodiments disclosed in the dependent claims and the description.

[0005] The problem is solved, in particular, by providing a temperature control device for controlling the temperature of an energy storage device in a commercial vehicle. The temperature control device comprises a temperature control fluid line, a heating device, a cooling device, and a first valve. The temperature control fluid line is designed such that a temperature control fluid can flow through it to the energy storage device. The temperature control fluid line is branched, particularly in the direction of flow, at a first junction into a first sub-fluid line and a second sub-fluid line. The first sub-fluid line and the second sub-fluid line merge again downstream of the first junction at a second junction to form the temperature control fluid line.The heating device is thermally coupled to the first partial fluid line in such a way that it can heat a portion of the heating fluid flow within the active fluid flow of the temperature control fluid. The cooling device is thermally coupled to the second partial fluid line in such a way that it can cool a portion of the cooling fluid flow within the active fluid flow. The first valve is designed to adjust the heating fluid flow and the cooling fluid flow.

[0006] Advantageously, the temperature control fluid can only be routed through the heating device if the energy storage device is to be heated via the temperature control fluid, whereby no heat losses can occur within the cooling device, since it is not subject to any flow. Likewise, the temperature control fluid can only be routed through the cooling device if the energy storage device is to be cooled via the temperature control fluid, whereby no cooling losses can occur within the heating device, since it is not subject to any flow. In one embodiment, the first valve is configured to open the first partial fluid line and / or the second partial fluid line, each independently of the other, in an open position and to close them in a closed position.

[0007] In particular, the open switching position is a valve position in which a fluid flow component, selected from the heating fluid flow component and the cooling fluid flow component, can flow through the partial fluid line assigned to the respective fluid flow component, selected from the first partial fluid line and the second partial fluid line.

[0008] In particular, the blocking switching position is a valve position in which a fluid flow component, selected from the heating fluid flow component and the cooling fluid flow component, cannot flow through the partial fluid line assigned to the respective fluid flow component, selected from the first partial fluid line and the second partial fluid line.

[0009] In particular, the first valve is designed as a 3-way valve with three ports, one of which is a heating device inlet, one a cooling device inlet, and one an energy storage device outlet. Specifically, the heating fluid flow component flows through the heating device inlet to the energy storage device outlet. Specifically, the cooling fluid flow component flows through the cooling device inlet to the energy storage device outlet. Specifically, the heating fluid flow component and the cooling fluid flow component combine in the first valve to form the active fluid flow component, which flows out of the first valve via the energy storage device outlet.

[0010] In one embodiment, the first valve is configured to adjust the ratio between the heating fluid flow fraction and the cooling fluid flow fraction, particularly stepwise, particularly continuously, from a heating fluid flow fraction of 100% to a cooling fluid flow fraction of 100%, particularly of the active fluid flow in each case. In particular, when the heating fluid flow fraction is 100%, the entire active fluid flow fraction flows through the first partial fluid line. In particular, no active fluid flow fraction then flows as a cooling fluid flow fraction through the second partial fluid line. In particular, when the cooling fluid flow fraction is 100%, the entire active fluid flow fraction flows through the second partial fluid line. In particular, no active fluid flow fraction then flows as a heating fluid flow fraction through the first partial fluid line.In particular, if the heating fluid flow rate is 50%, 50% of the active fluid flow rate – as the heating fluid flow rate – flows through the first partial fluid line, while the other 50% of the active fluid flow rate – as the cooling fluid flow rate – flows through the second partial fluid line. These and subsequent percentage values ​​refer specifically to a mass flow rate or volume flow rate of a respective fluid flow, selected from the temperature control fluid flow and the active fluid flow.

[0011] In particular, a partial fluid line, selected from the first partial fluid line and the second partial fluid line, or in particular both partial fluid lines, are arranged, especially in the direction of flow, between the first branch and the second branch. In particular, both partial fluid lines are arranged parallel to each other in the direction of flow.

[0012] According to a further development of the invention, the first valve is designed as the second branch. This represents a particularly simple embodiment of the second branch. In particular, such an embodiment is comparatively compact and requires relatively little installation space.

[0013] In particular, the first partial fluid line and the second partial fluid line merge in the first valve to form the temperature control fluid line.

[0014] According to a further development of the invention, the heating device is designed as a first heat exchanger or includes a first heat exchanger. Alternatively or additionally, the cooling device is designed as a second heat exchanger or includes a second heat exchanger. Advantageously, an electric heating device is not required to heat the temperature control fluid. The first heat exchanger makes it possible to transfer heat generated in the commercial vehicle to the temperature control fluid, thus heating the energy storage device energy-efficiently using this waste heat. The second heat exchanger makes it possible to integrate the temperature control device into an existing thermodynamic cycle in the commercial vehicle.Advantageously, no additional cycle is necessary; instead, the existing cycle can simply be adapted, in particular, the cooling capacity can simply be increased.

[0015] In one embodiment, the heating device is configured to transfer heat from a heat transfer medium to the heating fluid component of the active fluid component. In another embodiment, the cooling device is configured to transfer heat from the cooling fluid component of the active fluid component to a circulating process medium.

[0016] According to a further development of the invention, the heating device comprises a heat transfer medium line, in particular for the heat transfer medium, and a first section of the first partial fluid line. Alternatively or additionally, the cooling device comprises a second section of the second partial fluid line and a circulating process medium line, in particular for the circulating process medium. In particular, a partial fluid line consisting of separate pipes, selected from the first partial fluid line and the second partial fluid line, can be omitted, since the respective partial fluid line is formed by a device associated with the partial fluid line, selected from the heating device and the cooling device, which advantageously results in a particularly compact design.

[0017] In particular, the heat transfer fluid line and the first section are fluid-separated from each other. Specifically, the heat transfer fluid line and the first section are thermally coupled in such a way that heat can be transferred from the heat transfer fluid to the heating fluid flow component.

[0018] In particular, the second section and the circulating process medium line are fluid-separated from each other. Specifically, the second section and the circulating process medium line are thermally coupled in such a way that heat can be transferred from the cooling fluid component to the circulating process medium.

[0019] According to a further development of the invention, the temperature control device comprises a base body. The heating device is connected to a first side of the base body, in particular by screws. The cooling device is connected to a second side of the base body, in particular opposite the first side, also in particular by screws. This design enables a particularly compact construction of the temperature control device. In particular, the heating device and the cooling device can be removed from the base body very easily, for example for maintenance.

[0020] In one embodiment, a thermal insulation element is arranged between a device, selected from the heating device and the cooling device, and a side associated with the device, selected from the first side and the second side, respectively. This insulation element thermally decouples the device from the base body, and in particular, thermally insulates it. The insulation element is specifically designed to prevent unwanted heat transfer—particularly in addition to the respective partial fluid flow component, selected from the heating fluid flow component and the cooling fluid flow component—between the respective device and the side associated with the device. This includes preventing unwanted heat transfer across a contact surface, selected from a first contact surface between the heating device and the base body, and a second contact surface between the cooling device and the base body.

[0021] According to a further development of the invention, it is provided that the base body and the heating device, in particular each together, have a first partial fluid line interface and a second partial fluid line interface, in particular different from the first, which are arranged and designed in such a way that the heating fluid current component can flow from the base body via the first partial fluid line interface into the heating device and from the heating device via the second partial fluid line interface, in particular back into the base body.Alternatively or additionally, it is provided that the base body and the cooling device, particularly in combination, have a third partial fluid line interface and a fourth partial fluid line interface, which is distinct from the third, arranged and configured such that the cooling fluid flow can flow from the base body via the third partial fluid line interface into the cooling device and from the cooling device via the fourth partial fluid line interface, particularly back into the base body. Advantageously, such a design requires very little installation space, since no additional lines are necessary between the base body and the heating device or between the base body and the cooling device.

[0022] In this context, "together" is to be understood as meaning that the base body and the respective device, selected from the heating device and the cooling device, together form the respective partial fluid line interface, selected from the first, second, third, and fourth partial fluid line interfaces, in particular such that a partial fluid line opening of the base body is connected to a partial fluid line opening of the respective device, in particular abutting it, and in particular being fluidly connected. In particular, a sealing element is arranged between them, which seals the respective partial fluid line against its environment.

[0023] In one embodiment, the first partial fluid line interface and the second partial fluid line interface are arranged on the first side of the base body. In particular, the third partial fluid line interface and the fourth partial fluid line interface are arranged on the second side of the base body.

[0024] In particular, the first partial fluid line runs - especially in this sequence - from the base body via the first partial fluid line interface into the heating device, from there via the second partial fluid line interface back into the base body.

[0025] In particular, the second partial fluid line runs - especially in this sequence - from the base body via the third partial fluid line interface into the cooling device, from there via the fourth partial fluid line interface back into the base body.

[0026] According to a further development of the invention, the base body is provided to form the first branch and / or the second branch. In particular, the first valve is arranged in the second branch. Thus, separate piping components forming the first and second branches are advantageously not required.

[0027] According to a further development of the invention, the temperature control device comprises a second valve, which is distinct from the first valve. The second valve is arranged upstream of the first branch and is fluid-connected to the temperature control fluid line. The second valve is configured to be fluid-connected to a passive cooling device and to divide the temperature control fluid flow passing through the second valve into an active fluid flow component and a passive fluid flow component, particularly for the passive cooling device. Advantageously, this increases the energy efficiency of the temperature control device. Thus, at comparatively moderate temperatures, where the energy storage device requires only minimal cooling, the temperature control fluid can be routed through the passive cooling device.It is also possible, at comparatively high temperatures, when the energy storage device needs to be cooled more, to pass the temperature control fluid through the cooling device, whereby the temperature control fluid is cooled back, in particular by means of the thermodynamic cycle.

[0028] In particular, the base body includes the first valve and / or the second valve. Specifically, the first valve and / or the second valve are inserted into the base body, particularly by screwing them in. Specifically, the second valve is designed as a 3-way valve with three ports, one of which serves as an energy storage device inlet, a temperature control fluid line outlet, and a passive cooling device outlet. Specifically, the temperature control fluid flows through the energy storage device inlet into the second valve. Specifically, the temperature control fluid flow splits in the second valve into an active fluid flow component and a passive fluid flow component. Specifically, the active fluid flow component exits the second valve through the temperature control fluid line outlet. Specifically, the passive fluid flow component exits the second valve through the passive cooling device outlet.

[0029] In one embodiment, the second valve is configured to adjust the ratio between the active fluid flow fraction and the passive fluid flow fraction, particularly stepwise, and especially continuously, from an active fluid flow fraction of 100% to a passive fluid flow fraction of 100%, particularly in each case of the temperature control fluid flow. In particular, when the active fluid flow fraction is 100%, the entire temperature control fluid flow passes through the temperature control fluid line. In particular, no temperature control fluid then flows as a passive fluid flow fraction through the passive cooling device, especially if the latter is fluid-connected to the second valve. In particular, when the passive fluid flow fraction is 100%, the entire temperature control fluid flow passes through the passive cooling device, especially if the latter is fluid-connected to the second valve.In particular, no temperature control fluid flows through the temperature control fluid line as an active fluid flow component. Specifically, if the active fluid flow component is 50%, 50% of the temperature control fluid flow – as an active fluid flow component – ​​flows through the temperature control fluid line, while the other 50% of the temperature control fluid flow – as a passive fluid flow component – ​​flows through the passive cooling device, especially if this is fluid-connected to the second valve.

[0030] According to a further development of the invention, the temperature control device comprises a thermodynamic cycle and / or a passive cooling device. Advantageously, a high cooling capacity can be achieved with a comparatively high energy input using the thermodynamic cycle. Conversely, if only a low cooling capacity is required, cooling can be achieved solely by means of the passive cooling device.

[0031] In one embodiment, the thermodynamic cycle comprises a compressor, a cooler, an expansion valve, and an evaporator. Specifically, the thermodynamic cycle is configured to cool the cycle medium, particularly to cool it down after it has been heated by the cooling fluid component. In another embodiment, the passive cooling device is designed as a passive cooling device and therefore does not have a thermodynamic cycle, and specifically, no cycle medium. Specifically, the passive cooling device is configured to cool the temperature control fluid by means of convection, particularly by means of an air conveying device, and especially by means of a fan.

[0032] In particular, the passive cooling device is fluidly connected to the energy storage device, especially in such a way as to direct the passive fluid flow component to the energy storage device.

[0033] The problem is also solved by creating a commercial vehicle with a temperature control device according to the invention or a temperature control device according to one or more of the embodiments described above. In connection with the commercial vehicle, the advantages that arise are particularly those already explained in connection with the temperature control device.

[0034] According to a further development of the invention, the commercial vehicle is provided to have an energy storage device. The energy storage device is fluidly connected to an energy storage device output of the first valve and / or to an energy storage device input of the second valve and / or to the passive cooling device.

[0035] In particular, the energy storage device is an electrical energy storage device, especially a traction battery of the commercial vehicle, which stores electrical energy for an electric motor of the commercial vehicle.

[0036] In one embodiment, the commercial vehicle is a fully electric vehicle with an electric motor as its sole drive system. In another embodiment, the commercial vehicle is equipped with a hybrid drive system and thus has both an internal combustion engine and an electric motor.

[0037] The fact that the energy storage device is fluidly connected to an element selected from the first valve – in particular the energy storage device outlet – the second valve – in particular the energy storage device inlet – and the passive cooling device, means in the context of the present technical teaching, in particular, that temperature control channels of the energy storage device are fluidly connected to the respective element. Specifically, energy storage cells of the energy storage device can be temperature controlled, and in particular selectively heated and cooled, by means of the temperature control fluid flowing through the temperature control channels.

[0038] In one embodiment, the temperature control fluid flows from the energy storage device—particularly via the energy storage device inlet—into the second valve, specifically into the base body. In particular, the temperature control fluid flow is split in the second valve into the active fluid flow component and the passive fluid flow component. The passive fluid flow component flows, in particular, from the second valve—particularly via the passive cooling device outlet—into the passive cooling device and from there, in particular, back to the energy storage device. The active fluid flow component flows—in particular via the temperature control fluid line outlet—to the first branch and is split there into the heating fluid flow component and the cooling fluid flow component.The heating fluid flow component flows, in particular, from the first branch, especially from the base body – specifically via the first partial fluid line interface – into the heating device and from there – specifically via the second partial fluid line interface – into the first valve, specifically back into the base body. The cooling fluid flow component flows, in particular, from the first branch, especially from the base body – specifically via the third partial fluid line interface – into the cooling device and from there – specifically via the fourth partial fluid line interface – into the first valve, specifically back into the base body. In the first valve, the heating fluid flow component and the cooling fluid flow component combine to form the active fluid flow component, which flows from the first valve – exiting the base body – to the energy storage device.

[0039] According to a further development of the invention, the commercial vehicle is provided to have a heat generation device. The heat generation device is fluidly connected to the temperature control device, in particular to the heating device, such that a heat medium heated by the heat generation device can flow through the heating device, and in particular that heat can be transferred from the heat medium to the heating fluid flow component of the temperature control fluid, especially to heat the energy storage device.

[0040] In one embodiment, the heat generation device is selected from a group consisting of: a fuel cell of the commercial vehicle, an electric drive of the commercial vehicle, an internal combustion engine of the commercial vehicle, and an electrical or electronic component of the commercial vehicle. Advantageously, the energy storage device can thus be heated by waste heat generated in the commercial vehicle. In particular, this eliminates the need for additional energy to heat the energy storage device.

[0041] The invention will be explained in more detail below with reference to the drawing. The drawing shows:

[0042] Fig. 1 shows a schematic piping diagram of a first embodiment of a commercial vehicle with an embodiment of a temperature control device, and

[0043] Fig. 2 is a schematic representation of the temperature control device of Figure 1.

[0044] Since Figure 1 and Figure 2 show the same embodiment of a commercial vehicle 1 and a temperature control device 3, only in different representations, the following description refers to both figures.

[0045] The commercial vehicle 1 has a temperature control device 3, an energy storage device 5 (only in Figure 1) and a heat generation device 7 (only in Figure 1). The energy storage device 5 is, in this case, an electrical energy storage device 5, in particular a traction battery of the commercial vehicle 1, which stores electrical energy, in particular for an electric motor of the commercial vehicle 1 (not shown).

[0046] The temperature control device 3 comprises a temperature control fluid line 9, a heating device 11, a cooling device 13, and a first valve 15.1. The temperature control fluid line 9 is designed such that a temperature control fluid can be passed through it for the energy storage device 5. The temperature control fluid line 9 is branched, particularly in the direction of flow, at a first junction 17.1 into a first partial fluid line 19.1 and a second partial fluid line 19.2. The first partial fluid line 19.1 and the second partial fluid line 19.2 merge downstream of the first branch 17.1 at a second branch 17.2 to form the temperature control fluid line 9. The heating device 11 is thermally coupled to the first partial fluid line 19.1 in such a way that the heating device 11 can heat a heating fluid flow component 20.1 of an active fluid flow component 18.1 of the temperature control fluid flowing through the first partial fluid line 19.1.The cooling device 13 is thermally coupled to the second partial fluid line 19.2 such that the cooling device 13 can cool a cooling fluid flow component 20.2 of the active fluid flow component flowing through the second partial fluid line 19.2. The first valve 15.1 is configured to adjust the heating fluid flow component 20.1 and the cooling fluid flow component 20.2.

[0047] The first valve 15.1 is designed as a 3-way valve with three ports, one of which is a heating device inlet 21, one a cooling device inlet 23, and one an energy storage device outlet 25. Specifically, the heating fluid flow component 20.1 flows through the heating device inlet 21 to the energy storage device outlet 25. Specifically, the cooling fluid flow component 20.2 flows through the cooling device inlet 23 to the energy storage device outlet 25.

[0048] In particular, the heating fluid flow component 20.1 and the cooling fluid flow component 20.2 combine in the first valve 15.1 to form the active fluid flow component 18.1, which flows out of the first valve 15.1 via the energy storage device output 25.

[0049] Both partial fluid lines 19 are arranged, particularly in the direction of flow, between the first branch 17.1 and the second branch 17.2. Specifically, both partial fluid lines 19 are arranged parallel to each other in the direction of flow. The first valve 15.1 is configured as the second branch 17.2. The heating device 11 is configured as the first heat exchanger 27.1. Additionally, the cooling device 13 is configured as the second heat exchanger 27.2.

[0050] The heating device 11 has a heat medium line 29, in particular for the heat medium 10, and a first section 31.1 of the first partial fluid line 19.1. Additionally, the cooling device 13 is provided to have a second section 31.2 of the second partial fluid line 19.2 and a circulating process medium line 33, in particular for a circulating process medium.

[0051] The heat medium line 29 and the first section 31.1 are fluid-separated from each other, but thermally coupled in such a way that heat can be transferred from the heat medium 10 to the heating fluid flow component 20.1.

[0052] The second section 31.2 and the cycle medium line 33 are fluid-separated from each other, but thermally coupled in such a way that heat can be transferred from the cooling fluid flow component 20.2 to the cycle medium.

[0053] The temperature control device 3 has a base body 35. The base body 35 is shown in Figure 1 with a dashed first rectangle 37.1 and a dashed second rectangle 37.2. These are the same base body 35, but different conductor layers 39, which are shown unfolded in Figure 1 for clarity. In fact, the base body 35, as seen in Figure 2, has two conductor layers 39 oriented parallel to the plane of the image. The elements arranged in the dashed first rectangle 37.1 are located in a rear conductor layer 39.1 in Figure 2. The elements arranged in the dashed second rectangle 37.2 are located in a front conductor layer 39.2 in Figure 2, which lies in front of the rear conductor layer 39.1. The elements of the dashed second rectangle 37.2 are therefore to be conceptually placed around the heating device 11 as the axis of rotation onto the elements of the dashed first rectangle 37.1.

[0054] The heating device 11 is connected to a first side 41.1 of the base body 35, in particular by screws. The cooling device 13 is connected to a, in particular the first, side

[0055] 41.1 opposite, second side 41.2 of the base body 35 connected, in particular screwed.

[0056] The base body 35 and the heating device 11 each have, in particular jointly, a first partial fluid line interface 43.1 and a second partial fluid line interface 43.2, which is in particular different from the first, arranged and designed such that the heating fluid current component 20.1 is supplied from the base body 35 via the first partial fluid line interface

[0057] 43.1 into the heating device 11 and from the heating device 11 via the second partial fluid line interface 43.2, in particular back again, into the base body 35. Additionally, it is provided that the base body 35 and the cooling device 13, in particular each together, have a third partial fluid line interface 43.3 and a fourth partial fluid line interface 43.4, which is in particular different from the third, arranged and configured such that the cooling fluid flow component 20.2 can flow from the base body 35 via the third partial fluid line interface 43.3 into the cooling device 13 and from the cooling device 13 via the fourth partial fluid line interface 43.4, in particular back again, into the base body 35.

[0058] In this document, the first partial fluid line interface 43.1 and the second partial fluid line interface 43.2 are arranged on the first side 41.1 of the base body 35. Specifically, the third partial fluid line interface 43.3 and the fourth partial fluid line interface 43.4 are arranged on the second side 41.2 of the base body 35. The base body 35 also forms the first branch 17.1 and the second branch 17.2. Specifically, the first valve 15.1 is arranged in the second branch 17.2. Specifically, the first, second, third, and fourth partial fluid line interfaces 43.1, 43.2, 43.3, and 43.4 are arranged in the rear line layer 39.1. Specifically, the heat transfer fluid line 29 is arranged in the front line layer 39.2.

[0059] The temperature control device 3 further comprises a second valve 15.2, which is distinct from the first valve 15.1, and a passive cooling device 14. The second valve 15.2 is arranged upstream of the first branch 17.1 and is fluid-connected to the temperature control fluid line 9. The second valve 15.2 is configured to be fluid-connected to the passive cooling device 14 and to divide the temperature control fluid flow passing through the second valve 15.2 into an active fluid flow component 18.1 and a passive fluid flow component 18.2, in particular for the passive cooling device 14.

[0060] The second valve 15.2 is designed as a 3-way valve with three ports, one of which serves as the energy storage device inlet 45, the temperature control fluid line outlet 47, and the passive cooling device outlet 49. Specifically, the temperature control fluid flows through the energy storage device inlet 45 into the second valve 15.2. In the second valve 15.2, the temperature control fluid flow splits into the active fluid flow component 18.1 and the passive fluid flow component 18.2. Specifically, the active fluid flow component 18.1 exits the second valve 15.2 through the temperature control fluid line outlet 47. Specifically, the passive fluid flow component 18.2 exits the second valve 15.2 through the passive cooling device outlet 49.

[0061] The temperature control device 3 further comprises a thermodynamic cycle 51 (Figure 1 only). The thermodynamic cycle 51 includes a compressor, a cooler, an expansion valve, and an evaporator. In particular, the thermodynamic cycle 51 is configured to cool the cycle medium, especially to cool it down after it has been heated by the cooling fluid component 20.2.

[0062] The passive cooling device 14 is fluidly connected to the energy storage device 5, in particular in order to direct the passive fluid flow component 18.2 to the energy storage device 5.

[0063] The commercial vehicle 1 is equipped with a hybrid drive system (not shown) and thus has both an internal combustion engine and an electric motor. The energy storage device 5 is fluidly connected to an energy storage device output 25 of the first valve 15.1, to an energy storage device input 45 of the second valve 15.2, and to the passive cooling device 14.

[0064] The heat generation device 7 is fluidly connected to the temperature control device 3, in particular to the heating device 11, such that a heat medium 10 heated by the heat generation device 7 can flow through the heating device 11, and in particular that heat can be transferred from the heat medium 10 to the heating fluid component 20.1 of the temperature control fluid, especially to heat the energy storage device 5. The heat generation device 7 is designed as a fuel cell.

[0065] Reference symbol list

[0066] commercial vehicle

[0067] Temperature control device, energy storage device, heat generation device, temperature fluid line, heat medium

[0068] Heating device Cooling device Passive cooling device First valve Second valve First branch Second branch Active fluid flow component Passive fluid flow component

[0069] Partial fluid line, first partial fluid line, second partial fluid line, heating fluid flow component, cooling fluid flow component, heating device input

[0070] Cooling device input Energy storage device output First heat exchanger Second heat exchanger

[0071] Heat transfer fluid line, first section, second section, cycle process fluid line, base body, first rectangle, second rectangle, first line layer, second line layer, first side, second side, first partial fluid line interface, second partial fluid line interface, third partial fluid line interface, fourth partial fluid line interface, energy storage device input, temperature control fluid line output, passive cooling device output, cycle process

Claims

Patent claims 1. Temperature control device (3) for temperature control of an energy storage device (5) of a commercial vehicle (1), comprising: - a temperature control fluid line (9) which is designed such that a temperature control fluid for the energy storage device (5) can be passed through it, wherein the temperature control fluid line (9) branches at a first branch (17.1) into a first partial fluid line (19.1) and into a second partial fluid line (19.2), wherein the first partial fluid line (19.1) and the second partial fluid line (19.2) merge again into the temperature control fluid line (9) downstream of the first branch (17.1) at a second branch (17.2); - a heating device (11) which is thermally coupled to the first partial fluid line (19.1) in such a way that the heating device (11) can heat a heating fluid current component (20.1) of an active fluid current component (18.1) of the temperature control fluid flowing through the first partial fluid line (19.1); - a cooling device (13) which is thermally coupled to the second partial fluid line (19.2) in such a way that the cooling device (13) can cool a cooling fluid flow component (20.2) of the active fluid flow component (18.1) flowing through the second partial fluid line (19.2), and - a first valve (15.1) that is set up to adjust the heating fluid flow fraction (20.1) and the cooling fluid flow fraction (20.2).

2. Temperature control device (3) according to claim 1, wherein - the first valve (15.1) is designed as the second branch (17.2).

3. Temperature control device (3) according to one of the preceding claims, wherein - the heating device (11) is designed as a first heat exchanger (27.1) or has a first heat exchanger (27.1), and / or - the cooling device (13) is designed as a second heat exchanger (27.2) or has a second heat exchanger (27.2).

4. Temperature control device (3) according to one of the preceding claims, wherein - the heating device (11) a heat medium line (29) and a first section (31.1) of the first partial fluid line (19.1), and / or - the cooling device (13) a second section (31.2) of the second partial fluid line (19.2) and a circulating process medium line (33).

5. Temperature control device (3) according to one of the preceding claims, comprising a base body (35), wherein - the heating device (11) is connected to a first side (41.1) of the base body (35), wherein - the cooling device (13) is connected to a second side (41.2) of the base body (35).

6. Temperature control device (3) according to claim 5, wherein - the base body (35) and the heating device (11) have a first partial fluid line interface (43.1) and a second partial fluid line interface (43.2) which are arranged and designed such that the heating fluid current component (20.1) from the base body (35) via the first partial fluid line interface (43.1) into the heating device (11) and from the heating device (11) via the second partial fluid line interface (43.2) into the base body (35), and / or - the base body (35) and the cooling device (13) have a third partial fluid line interface (43.3) and a fourth partial fluid line interface (43.4) which are arranged and designed such that the cooling fluid flow fraction (20.2) can flow from the base body (35) via the third partial fluid line interface (43.3) into the cooling device (13) and from the cooling device (13) via the fourth partial fluid line interface (43.4) into the base body (35).

7. Temperature control device (3) according to claim 5 or 6, wherein - the basic body (35) the first branch (17.1) and / or the second branch (17.2) trains.

8. Temperature control device (3) according to one of the preceding claims, comprising a second valve (15.2), wherein - the second valve (15.2) is arranged upstream of the first branch (17.1) and is fluid-connected to the temperature control fluid line (9), wherein - the second valve (15.2) is set up to be fluid-connected to a passive cooling device (14), and to - to divide the temperature control fluid flow through the second valve (15.2) into the active fluid flow component (18.1) and a passive fluid flow component (18.2).

9. Temperature control device (3) according to one of the preceding claims, comprising: - a thermodynamic cycle (51), and / or - the passive cooling device (14).

10. Commercial vehicle (1) comprising a temperature control device (3) according to any of the preceding claims.

11. Commercial vehicle (1) according to claim 10, comprising an energy storage device (5), wherein - the energy storage device (5) is fluidly connected to an energy storage device output (25) of the first valve (15.1) and / or to an energy storage device input (45) of the second valve (15.2) and / or to the passive cooling device (14).

12. Commercial vehicle (1) according to claim 10 or 11, comprising a heat generating device (7), wherein - the heat generating device (7) is fluidly connected to the temperature control device (3) in such a way that a heat medium (10) heated by the heat generating device (7) can flow through the heating device (11).

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