EP4415998A1 - Kühlmitteltank, kühlmittelführungssystem und kraftfahrzeug - Google Patents
Kühlmitteltank, kühlmittelführungssystem und kraftfahrzeugInfo
- Publication number
- EP4415998A1 EP4415998A1 EP22768364.6A EP22768364A EP4415998A1 EP 4415998 A1 EP4415998 A1 EP 4415998A1 EP 22768364 A EP22768364 A EP 22768364A EP 4415998 A1 EP4415998 A1 EP 4415998A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tank
- coolant
- electronics
- housing
- designed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/029—Expansion reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2025/00—Measuring
- F01P2025/70—Level
Definitions
- Coolant tank coolant management system and motor vehicle
- the present invention relates to a coolant tank for a coolant supply system of the type specified in the preamble of claim 1, a coolant supply system of the type specified in the preamble of claim 5 and a motor vehicle with a coolant supply system.
- the known coolant supply systems for motor vehicles include a number of coolant circuits, having a coolant tank with an interior space which is designed to store a coolant, a number of coolant channels which are designed to introduce the coolant from the coolant tank into at least one coolant circuit, and tank electronics which is set up to control the respective coolant supply system, the tank electronics being sealed against environmental influences by means of a first electronics housing part and by means of a second electronics housing part of an electronics housing designed as an electronics housing cover.
- the coolant tanks known from this correspondingly have a tank housing with an outer wall and an interior space arranged in the tank housing for storing a coolant for the coolant supply system.
- the vehicle battery must also be heated, for example in the case of low ambient temperatures, if no excess engine heat has to be dissipated or if the vehicle has been put into operation but an engine of the vehicle does not produce any or at least no significant waste heat.
- a heating device is therefore generally also required, which increases the coolant temperature if necessary.
- the battery temperature and the interior temperature of a motor vehicle efficiently, in contrast to vehicles with internal combustion engines, several separate coolant circuits are usually required. These coolant circuits must be fed and regulated by coolant management systems for multiple coolant circuits.
- the document shows a coolant tank, for example for an electric vehicle, which has a number of components arranged inside it for producing multiple coolant circuits.
- the positioning of the components, for example the lines for the individual coolant circuits, inside the tank itself is space-efficient, but in the event of damage or necessary maintenance of these components, there is a considerable additional effort to make them accessible.
- a multiple thermal bridge is created between all components of the multiple coolant circuits, so that they all interact with one another and the control effort for the coolant circuits is increased.
- the capacity is reduced by each device component relocated inside the tank, so that the tank to must be increased to maintain a certain coolant capacity.
- a tank with internal device components is considerably more difficult to manufacture than a tank that is only set up to hold and store coolant.
- the object of the present invention is to improve a coolant tank, a coolant supply system and a motor vehicle with a coolant supply system.
- a coolant tank with the features of claim 1, which is characterized in that the outer wall is designed as a first electronics housing part for tank electronics, the outer wall being designed in such a way that the outer wall, in conjunction with a second Electronics housing part for the tank electronics, this tank electronics, directly or indirectly using a seal, sealingly encloses against environmental influences. Furthermore, this object is achieved by a coolant supply system with the features of claim 5 and a motor vehicle with the features of claim 10.
- the dependent claims relate to advantageous developments of the invention.
- An essential advantage of the invention lies in the fact that a coolant tank, a coolant supply system and a motor vehicle with a coolant supply system are improved. Due to the inventive design of the coolant tank, the coolant supply system and the motor vehicle, the space, material, manufacturing and arrangement efficiency of the coolant supply system can be maximized. For example, it is possible by means of the coolant tank according to the invention to significantly reduce the number of components, the assembly and disassembly effort, the space required for the coolant supply system according to the invention and finally also the costs and the total weight of the coolant supply system according to the invention. In principle, the coolant tank can be freely selected in terms of type, function, material and dimensioning within wide, suitable limits.
- the tank housing is designed in multiple parts and has a tank cover, the outer wall designed as the first electronics housing part being designed as the tank cover of the tank housing.
- the arrangement of the second electronics housing part, which interacts with the outer wall designed as the first electronics housing part and is designed as an electronics housing cover, is optimized.
- the accessibility of the electronics housing cover is significantly simplified as a result.
- a further advantageous development of the coolant tank according to the invention provides that the outer wall designed as the first electronics housing part is designed obliquely, at least in a receiving area for the tank electronics, so that liquid dripping onto the tank housing from above can run off from the aforementioned receiving area due to the force of gravity.
- the protection of the tank electronics arranged in the electronics housing against damage or destruction is additionally improved in a manner that is particularly simple in terms of design and production technology.
- the coolant tank according to the invention provides that the tank housing or, in the case of a multi-part tank housing, all parts of the tank housing is/are each designed as a one-piece plastic part. In this way, the production of the tank housing is significantly simplified.
- the coolant supply system according to the invention can also be freely selected in terms of type, function, material and dimensioning within wide, suitable limits. See, for example, the relevant statements in the introduction to the description.
- An advantageous development of the coolant supply system according to the invention provides that the electronics housing cover is designed in such a way that the tank electronics arranged in the electronics housing can be connected for signal transmission by means of at least one plug to a control unit of the motor vehicle that is superordinate to the tank electronics and/or to at least one control valve of the coolant supply system, preferably that the electronics housing cover has at least one connector basket for the at least one connector.
- the electrical and/or electronic interface can be implemented in a constructive and robust manner with a control unit of the motor vehicle equipped with the inventive coolant supply system that is superior to the tank electronics and/or with a remainder of the inventive coolant supply system. This applies in particular to the preferred embodiment of this development.
- a further advantageous development of the coolant supply system according to the invention provides that the tank electronics arranged in the electronics housing have at least one signal transmission connection sealed from the interior of the tank housing into the interior of the tank housing, this signal transmission connection connecting the tank electronics to at least one tank sensor of the coolant supply system in a signal-transmitting manner, preferably that the tank sensor is connected directly to the tank electronics for signal transmission.
- the aforementioned tank electronics can also be used for processing and/or forwarding output signals from at least one tank sensor, so that further components for fulfilling this purpose can be dispensed with.
- the design of the present development according to the preferred embodiment is particularly advantageous. This is because in this case additional components for transmitting the output signal of the respective tank sensor to the tank electronics are unnecessary.
- the respective tank sensor is connected directly, ie without additional components, to the tank electronics, for example a printed circuit board of the tank electronics, in a signal-transmitting manner.
- the at least one tank sensor can for example, be designed as a level sensor for detecting a level of the coolant in the interior of the coolant tank.
- a particularly advantageous development of the coolant management system according to the invention provides that the aforementioned tank electronics are designed and set up in such a way that all control tasks of the coolant management system can be carried out using only these tank electronics as the only tank electronics.
- the control of the coolant supply system according to the invention is centralized in the aforementioned tank electronics, so that the number of components and electrical interfaces can be reduced to a minimum.
- the space required for the coolant supply system according to the invention and the weight of the coolant supply system according to the invention are thus also minimized.
- the tank electronics are designed and set up in such a way that the tank electronics can be used to process or preprocess signals present at the tank electronics.
- the functionality of the aforementioned tank electronics is further increased so that, for example, initially analog output signals from a tank sensor are digitized directly in the aforementioned tank electronics and can be forwarded as digital signals to a higher-level control unit of the motor vehicle.
- 1 shows an exemplary embodiment of a coolant supply system according to the invention of a motor vehicle according to the invention in a partial perspective view in the area of the coolant tank
- 2 shows the exemplary embodiment in a further partial, perspective view in the area of the coolant tank
- FIG. 3 shows the exemplary embodiment according to FIG. 2, with the electronics housing in an exploded view
- FIG. 4 shows the exemplary embodiment according to FIG. 2 in a lateral sectional view
- FIG. 5 shows the exemplary embodiment according to FIG. 4 in an enlarged view in the area of the electronics housing
- FIG. 6 shows the exemplary embodiment according to FIG. 4, with coolant located in the interior of the tank housing.
- the coolant routing system 2 comprises a plurality of coolant circuits, not shown, and has a coolant tank 4 with an interior space 6, which is designed to store a coolant 8, a plurality of coolant ducts, not shown, which are designed to channel the coolant 8 from the coolant tank 4 into at least two Initiate coolant circuits, and a tank electronics 10, which is adapted to control the coolant management system 2 on.
- the tank electronics 10 are sealed against environmental influences by means of a first electronics housing part 12 and by means of a second electronics housing part 14 of an electronics housing 16 designed as an electronics housing cover.
- the coolant tank 4 comprises a tank housing 18 with an outer wall and the interior space 6 arranged in the tank housing 18 for storing the coolant 8 for the coolant supply system 2.
- the outer wall is embodied as the first electronics housing part 12 for the tank electronics 10, with the outer wall 12 being embodied in such a way that the outer wall 12 in connection with the second electronics housing part 14 for the tank electronics 10, which is embodied as an electronics housing cover, this tank electronics 10 indirectly using a seal 20, sealingly encloses against environmental influences.
- the first electronics housing part 12 and the second electronics housing part 14 are connected in a manner known per se to those skilled in the art, with the aforementioned seal 20 being inserted.
- the two electronics housing parts 12, 14 can be screwed, riveted, glued or welded together, for example.
- the tank housing 18 is designed here in several parts and has a tank cover, the outer wall designed as the first electronics housing part 12 being designed as the tank cover of the tank housing 18 .
- the outer wall designed as the first electronics housing part 12 is designed obliquely in a receiving area 22 for the tank electronics 10 such that liquid (not shown) dripping onto the tank housing 18 from above can drain from the aforementioned receiving area 22 due to the force of gravity.
- the tank housing 18, namely all parts of the multi-part tank housing 18, are each designed as a one-piece plastic part.
- the tank housing 18 also has a tank body 24 designed as a plastic part, the tank cover 12 and the tank body 24 being constructed in a manner known per se to the person skilled in the art, for example by means of plastic welding, are connected to one another.
- the electronics housing cover 14 is designed here such that in the
- Electronics housing 16 arranged tank electronics 10 by means of two connectors 26, 28 can be connected for signal transmission to a motor vehicle control unit (not shown) that is higher-level than tank electronics 10 and to at least one control valve (not shown) of coolant supply system 2, with electronics housing cover 14 having two connector baskets 30, 32 for each of connectors 26, 28.
- the tank electronics 10 arranged in the electronics housing 16 has a signal transmission connection that is sealed relative to the interior 6 of the tank housing 18 and leads into the interior 6 of the tank housing 18, with this signal transmission connection connecting the tank electronics 10 to a tank sensor 34 designed as a filling level sensor in a signal-transmitting manner, the Tank sensor 34 is directly connected to the tank electronics 10 in a signal-transmitting manner. See in particular FIGS. 4 to 6.
- the filling level sensor 34 is designed to detect a filling level of the coolant 8 in the interior 6 and is directly connected to a printed circuit board 36 of the tank electronics 10 in a signal-transmitting manner.
- the tank electronics 10 are designed and set up in such a way that all the control tasks of the coolant supply system 2 can be carried out solely by means of this tank electronics 10 as the only tank electronics 10 . Furthermore, the tank electronics 10 are designed and set up in such a way that the tank electronics 10 can be used to preprocess signals present at the tank electronics 10 . For example, analog output signals of tank sensor 34 present at tank electronics 10 are digitized by means of tank electronics 10 in order to then be forwarded as digital signals from tank electronics 10 to the aforementioned control unit of the motor vehicle that is superordinate to tank electronics 10 .
- the coolant tank 4 Due to the inventive design of the coolant tank 4, the coolant supply system 2 and the motor vehicle, not shown in detail, the space, material, manufacturing and arrangement efficiency of the coolant supply system 2 is maximized.
- the overall weight of the motor vehicle designed as an electric vehicle of the present exemplary embodiment is also reduced accordingly.
- the total weight is a very important variable, especially for electric vehicles, in particular purely electric vehicles.
- the number of components and the number of electrical interfaces are significantly reduced, so that the design and manufacture of the entire coolant supply system 2 is greatly simplified. This is because, for example, additional tank electronics, such as control units or the like, and their line groups for signal transmission can be omitted.
- various electrical interfaces are combined on and in the electronic tank system 10, for example the interface with the control unit of the motor vehicle that is superordinate to the electronic tank system 10 and the interface with the tank sensor 34.
- the tank electronics 10 is the only tank electronics 10 functionally responsible for the signal pre-processing, for example the digitization of analog output signals of the tank sensor 34, and for the signal transmission to the compared to the tank electronics 10 superordinate control unit of the motor vehicle. Additional separate tank electronics are not required.
- the invention is not limited to the present embodiment.
- First electronics housing part designed as an outer wall and as a tank cover
- Second electronics housing part designed as an electronics housing cover
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021126827 | 2021-10-15 | ||
| PCT/EP2022/073197 WO2023061644A1 (de) | 2021-10-15 | 2022-08-19 | Kühlmitteltank, kühlmittelführungssystem und kraftfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4415998A1 true EP4415998A1 (de) | 2024-08-21 |
Family
ID=83271176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22768364.6A Pending EP4415998A1 (de) | 2021-10-15 | 2022-08-19 | Kühlmitteltank, kühlmittelführungssystem und kraftfahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240253451A1 (de) |
| EP (1) | EP4415998A1 (de) |
| CN (1) | CN118103239A (de) |
| WO (1) | WO2023061644A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023123057A1 (de) * | 2023-08-28 | 2025-03-06 | HELLA GmbH & Co. KGaA | Kühlmittelführungssystem und Verfahren |
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-
2022
- 2022-08-19 CN CN202280068308.2A patent/CN118103239A/zh active Pending
- 2022-08-19 EP EP22768364.6A patent/EP4415998A1/de active Pending
- 2022-08-19 WO PCT/EP2022/073197 patent/WO2023061644A1/de not_active Ceased
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2024
- 2024-04-15 US US18/635,675 patent/US20240253451A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN118103239A (zh) | 2024-05-28 |
| WO2023061644A1 (de) | 2023-04-20 |
| US20240253451A1 (en) | 2024-08-01 |
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