EP3320197B1 - Kühlmittelkreislauf für flüssigkeitsgekühlte getriebe - Google Patents

Kühlmittelkreislauf für flüssigkeitsgekühlte getriebe Download PDF

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Publication number
EP3320197B1
EP3320197B1 EP16728292.0A EP16728292A EP3320197B1 EP 3320197 B1 EP3320197 B1 EP 3320197B1 EP 16728292 A EP16728292 A EP 16728292A EP 3320197 B1 EP3320197 B1 EP 3320197B1
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EP
European Patent Office
Prior art keywords
cooling circuit
crankcase
transmission
circuit
engine
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.)
Active
Application number
EP16728292.0A
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German (de)
English (en)
French (fr)
Other versions
EP3320197A1 (de
Inventor
Norbert Amann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP3320197A1 publication Critical patent/EP3320197A1/de
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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
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/06—Arrangements for cooling pistons
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/027—Cooling cylinders and cylinder heads in parallel
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • 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
    • F01P2025/60—Operating parameters
    • F01P2025/62—Load
    • 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
    • F01P2025/60—Operating parameters
    • F01P2025/64—Number of revolutions
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F01P2060/045—Lubricant cooler for transmissions

Definitions

  • the invention relates to a coolant circuit with an engine cooling circuit and a branched from the engine cooling circuit transmission cooling circuit.
  • a coolant circuit is known in which an engine cooling circuit is circulatable in the coolant for cooling an internal combustion engine, branches into a cylinder head cooling circuit and separated from a crankcase cooling circuit.
  • Modern high-performance transmissions in particular dual-clutch transmissions, are also cooled with water in addition to oil cooling.
  • coolant is diverted from the engine cooling circuit and used to cool the transmission.
  • the relatively warm coolant in the coolant circuit leads to the fact that in these operating ranges, the transmission is heated rather than cooled. Only in high power ranges, this effect is reversed, so that the transmission is cooled.
  • a coolant circuit for cooling a transmission having improved cooling characteristics. This object is achieved with a coolant circuit according to claim 1 and a motor vehicle according to claim 10.
  • Advantageous developments of the invention are the subject of the dependent claims.
  • a coolant circuit is provided, with an engine cooling circuit in the coolant for cooling an internal combustion engine is circulated; a transmission cooling circuit for cooling a transmission, which branches off from the engine cooling circuit; a valve disposed at least in the transmission cooling circuit and a controller adapted to open and close the valve depending on an operating condition of the internal combustion engine and / or the transmission.
  • the operating state of the internal combustion engine may be determined, for example, by a throttle position, an engine speed and / or an engine torque.
  • the controller may be adapted to control (open and close) the valve depending on at least one of the following parameters: a coolant temperature, a crankcase temperature.
  • a coolant temperature As described above, it has been found that conventional engine coolant circuits heat the transmission rather than cool at low engine power. Furthermore, this also adversely affects the heating speed of the internal combustion engine in the warm-up phase, which can have an influence on emissions and consumption. This is prevented by providing a switch-off option in the transmission cooling circuit, depending on the engine power. Since the engine can be cooled very effectively by the coolant at a high engine output, a flow of coolant through the transmission cooling circuit is permitted at a certain engine output as of which the cooling effect occurs.
  • the engine cooling circuit comprises a cylinder head cooling circuit and, separately, a crankcase cooling circuit, wherein the transmission cooling circuit branches off from the crankcase cooling circuit, ie, branches off at a portion along which the crankcase cooling circuit is separated from the cylinder head cooling loop.
  • the transmission cooling circuit branches off from the crankcase cooling circuit, ie, branches off at a portion along which the crankcase cooling circuit is separated from the cylinder head cooling loop.
  • the inventor of this invention found that by coupling the transmission cooling circuit to the crankcase cooling circuit, an additional, separate valve for the transmission cooling circuit can be saved because the crankcase and transmission show similar cooling conditions and thus a common valve can be used for the transmission cooling circuit and the crankcase cooling circuit.
  • the valve (same valve) is thus arranged in the transmission cooling circuit and in the crankcase cooling circuit, that is, the transmission cooling circuit and the crankcase cooling circuit are identical at least at the entrance or at the outlet of the valve.
  • a coolant circuit is provided, wherein the crankcase cooling circuit has a crankcase water jacket, which is guided around cylinder bores, and the transmission cooling circuit downstream of a device for absorbing heat from the transmission, in particular a water jacket in the transmission housing or a heat exchanger for heat transfer with the transmission oil, flows into the crankcase water jacket.
  • the valve is located downstream of the crankcase water jacket.
  • the cylinder head cooling circuit and the crankcase cooling circuit are brought together again downstream of the valve.
  • the engine cooling circuit branches at a branch into the cylinder head cooling circuit and the crankcase cooling circuit, wherein the transmission cooling circuit branches off from the crankcase cooling circuit downstream of the branch.
  • the transmission cooling circuit branches off the crankcase cooling circuit downstream of the branch and upstream of a crankcase water jacket of the crankcase cooling circuit.
  • a coolant circuit is provided wherein the crankcase cooling circuit branches downstream of the manifold into a crankcase water jacket and engine oil cooling circuit adapted to cool engine oil via a heat exchanger, and wherein the transmission cooling circuit branches from the engine oil cooling circuit.
  • a check valve is provided in the transmission cooling circuit.
  • This check valve is intended to prevent flow through the transmission cooling circuit, in particular in the case of the split cooling system, with the transmission cooling cycle valve closed, and the crankcase water jacket in the reverse direction.
  • the branch is formed by a coolant pump.
  • the controller is adapted to open and close the valve in response to engine speed and / or engine torque. Further, the controller may be adapted to control (open and close) the valve depending on at least one of the following parameters: a coolant temperature, a crankcase temperature.
  • the controller is adapted to open the valve only above a certain threshold of engine speed and / or engine torque. That is, the controller is adjusted to open the valve above the threshold and close below the threshold (including the threshold itself). In particular, the controller is adapted to fully open the valve above the threshold and fully close below the threshold (including the threshold itself). Engine speed and engine torque determine engine performance. In this case, the controller may be adapted to open the valve only above a threshold value of the engine power of 70% of the maximum engine power, the so-called nominal engine power. In particular, the threshold is 80%.
  • the invention relates to a vehicle with a coolant circuit according to one of the preceding claims.
  • the coolant circuit 1 comprises an engine cooling circuit and a transmission cooling circuit which extend together through a radiator 2, which is known to be cooled by a fan 3 in addition to the airstream, and cools a guided in the coolant circuit coolant in a known manner. From a radiator outlet 4, the coolant circuit continues to extend to a coolant pump 5, which may be a mechanical, an internal combustion engine, or electrically driven coolant pump.
  • the internal combustion engine comprises a crankcase 6 with a plurality of cylinder bores 7 and a cylinder head housing 8 with the cylinder heads 9 belonging to the cylinder bores 7.
  • the coolant circuit 1 is introduced into a cylinder head cooling circuit 10 and a crankcase cooling circuit at a branch formed by the coolant pump 5 in this embodiment 11 divided. However, the branch may also be formed further downstream of the coolant pump 5 through a coolant line branch.
  • each cooling channels are formed in the housing material, which are guided around each cylinder bore 7 and each cylinder head 9 in the form of a water jacket.
  • This crankcase water jacket 13 or cylinder head water jacket 12 is formed by cavities which extend over a certain height of the cylinder bores 7 and cylinder heads 9 and surround the cylinder bores or cylinder heads annular. These annular cavities are connected in series. In addition, these interconnected cavities are connected to an inlet and a drain, for example, are connected by the two outer cavities, one with an inlet and the other with a drain.
  • the crankcase cooling circuit 11 leads to a valve 14, which in the closed state stops the flow of coolant in the crankcase water jacket 13 and in the open state allows the flow of coolant through the crankcase water jacket 13.
  • the valve 14 preferably has a single input and a maximum of two outputs.
  • the valve 14 may be actuated, for example, electromagnetically, for example with an electromotive worm drive.
  • the output of the valve 14 leads into a thermal management module 15, which is responsible for the control of the cooling circuit 1, and from there back into the radiator second
  • an engine oil cooling circuit 16 which is formed as a channel separately from the crankcase water jacket 13 in the crankcase 6.
  • the engine oil cooling circuit 16 passes through an engine oil water heat exchanger 17 in which the coolant cools an engine oil which lubricates and cools moving parts of the engine.
  • the engine oil cooling circuit 16 Downstream of the engine oil heat exchanger 17, the engine oil cooling circuit 16 is merged at a point 18 with the cylinder head cooling circuit 10 coming from the outlet of the cylinder head cooling circuit 12 and forwarded to the thermal management module 15, after which it is led back to the cooler 2.
  • the Transmission cooling circuit 19 branches off in the region of the engine oil heat exchanger 17. However, the transmission cooling circuit 19 may branch off somewhere between the coolant pump 5 (or the branch) and the point 18 of the engine oil cooling circuit 16. The transmission cooling circuit 19 may also branch off from the crankcase water jacket 13. Likewise, the transmission cooling circuit 19 directly (indirectly is in Fig. 1 shown) from the crankcase cooling circuit 11 between the coolant pump 5 (or the branch) and the input to the crankcase water jacket 13 branch off.
  • the transmission cooling circuit 19 branches off from the crankcase cooling circuit 11, in particular at a point which is suitable in practice for such a connection.
  • the transmission cooling circuit 19 leads to a device 21 for absorbing heat from the transmission 20, in particular a dual-clutch transmission.
  • This device 21 is in this embodiment, a trained in the transmission housing water jacket, which is guided around hot components of the transmission 20 similar to the above-described water jackets.
  • the device 21 could also be a heat exchanger that cools a transmission oil.
  • the transmission cooling circuit 19 opens into the crankcase water jacket 13, preferably in the region of the outlet and preferably on the hotter side of the water jacket.
  • the valve 14, which is arranged at the outlet of the crankcase water jacket 13, is thus arranged in the transmission cooling circuit 19 by the introduction of the transmission cooling circuit 19 into the crankcase water jacket 13. If the valve 14 is closed, then a coolant flow in the transmission cooling circuit 19 is prevented and the valve 14 is opened, this also allows a coolant flow in the transmission cooling circuit 19. To avoid a flow in the crankcase water jacket 13 and a return flow in the transmission cooling circuit 19, with the valve 14 closed , a check valve 22 is provided in the transmission cooling circuit 19, which only a flow from the engine oil cooling circuit 16 for Crankcase water jacket 13 allows. This valve 14 is opened and closed in this embodiment depending on an operating state of the internal combustion engine and / or the transmission.
  • the control of the valve 14 is effected by a controller 26, which may be implemented in the form of an electrical circuit or by a computing unit (eg programmable or preprogrammed). In FIG. 1
  • the controller 26 may also be a standalone controller, part of a motor controller, the motor controller itself, or any other suitable controller.
  • the controller 26 may control the valve 14 to open or close, thereby controlling a flow rate through the valve 14.
  • the controller 26 may also control the valve 14 clocked so that it opens and closes at a certain rate, thus achieving a desired flow rate.
  • the controller 26 may also control the valve 14 to narrow or expand a flow area such that a certain flow rate of refrigerant is achieved.
  • the controller 26 is adapted to open and close the valve 14 depending on engine speed and / or engine torque, wherein one or more of the above-mentioned parameters may be additionally included in the controller.
  • the valve 14 could be controlled depending on engine speed, engine torque, coolant temperature, and crankcase temperature. By a certain engine speed and a certain engine torque results in an engine power.
  • the valve 14 is opened above a certain engine power and closed below this engine power. More preferably, the valve 14 opens from an engine output of 60%, more preferably opens the valve 14 from an engine power of 70%, even more preferably opens the valve 14 from an engine power of 80%.
  • the control of the valve 14 can also be realized in such a way that specific switching states of the valve 14 are assigned in the control 26 control characteristics or control table assignments to specific values of the above-mentioned parameters.
  • FIG. 2 schematically shows a second embodiment of the refrigerant circuit according to the present invention.
  • like reference numerals indicate the same or similar components, and reference is made to the description of the first embodiment to avoid repetition. Only differences to the first embodiment will be described here.
  • an output of the crankcase water jacket 13 and the cylinder head water jacket 12 is not located at the outer end of the respective water jacket, but in the area of the penultimate cylinder bore or cylinder head, whereby the flow conditions in the respective water jacket change something, as represented by corresponding flow arrows.
  • the preferred embodiment of the device 21 is a transmission oil heat exchanger, but may also be the water jacket, which has already been described in the first embodiment.
  • a bypass line 29 is additionally provided, via which the thermal management module 15 can bypass the radiator 2 if necessary. For example, to achieve a faster heating of the coolant.
  • a heating heat exchanger 23 is connected to the heat management module 15 and is supplied from the heat management module 15 with coolant, if necessary, which is guided back into the heat management module 15 downstream of the heating heat exchanger 23.
  • a cooling circuit for cooling a cylinder head integrated manifold 24 is connected.
  • a cooling circuit for an exhaust gas turbocharger 25 is connected.
  • the engine oil cooling circuit 16 corresponds to the transmission cooling circuit 19, because as in Fig. 2 1, the engine oil heat exchanger 17 is arranged upstream and in series with the device 21.
  • This engine oil cooling circuit 16 or transmission cooling circuit 19 branches downstream the coolant pump 5 (or the branch) and upstream of the input of the crankcase water jacket 13 from.
  • the invention is not limited thereto, so that the engine oil cooling circuit 16 and the transmission cooling circuit 19 may both be parallel to each other, both branches downstream of the coolant pump 5 (or the branch) and upstream of the inlet of the crankcase water jacket 13 and both again into the crankcase water jacket 13th lead.
  • FIG. 3 schematically shows a third embodiment of the refrigerant circuit 1 according to the present invention.
  • like reference numbers represent the same or similar parts, and reference is made to the description of the foregoing embodiments unless otherwise described below.
  • the cooling circuit 1 comprises, as in the preceding embodiments, an engine cooling circuit having a cylinder head cooling circuit 10 and a crankcase cooling circuit 11.
  • the cylinder head cooling circuit 10 and the crankcase cooling circuit 11 preferably extend together as an engine cooling circuit through the radiator 2. Downstream of the radiator 2, the engine cooling circuit on the coolant pump 5 and the branch into the separated sections of the cylinder head cooling circuit 10 and the crankcase cooling circuit 11 splits. After flowing through the respective water jackets 12 and 13 of the cylinder head cooling circuit 10 and the crankcase cooling circuit 11 are again brought together, for example in the thermal management module 15, and lead back to the radiator. 2
  • the branch is provided in the cylinder head cooling circuit 10 and the crankcase cooling circuit 11 on the coolant pump 5 or downstream thereof.
  • the cylinder head cooling circuit 10 leads from the branching through the cylinder head water jacket 12 and from there via an outlet line 27 into the thermal management module 15.
  • the engine oil cooling circuit 16 is coupled to the cylinder head cooling circuit 10 in this exemplary embodiment. Specifically, the engine oil cooling circuit 16 branches off from the cylinder head water jacket 12 and is returned to the cylinder head water jacket 12 at a downstream location of the cylinder head water jacket 12. After the branching off from the cylinder head water jacket 12, the engine oil cooling circuit 16 thus flows through the engine oil water heat exchanger 17 and returns to the cylinder head water jacket 12. Reference is made to the description of the preceding exemplary embodiments for the engine oil water heat exchanger 17.
  • the transmission cooling circuit 19 branches off.
  • the inlet of the crankcase water jacket 13 is defined as the point where the crankcase circuit 13 opens into a cavity surrounding a cylinder for the first time after entering the crankcase.
  • the valve 14 is provided at the point where the transmission cooling circuit 19 branches off from the crankcase cooling circuit 11, the valve 14 is provided.
  • the valve 14 is preferably an electric valve, but may also correspond to one of the aforementioned embodiments. In particular, the valve 14 forms the branch of the transmission cooling circuit 19 from the crankcase cooling circuit 11.
  • the valve 14 may allow or prevent a flow of coolant in both the crankcase cooling circuit 11 and in the transmission cooling circuit 19 depending on a current flow. Intermediate positions are also possible.
  • the valve 14 in in Fig. 3 illustrated embodiment upstream of the point at which the transmission cooling circuit 19 branches off from the crankcase cooling circuit 11 and downstream of the junction in the cylinder head cooling circuit 10 on the one hand and the crankcase cooling circuit 11 on the other.
  • the transmission cooling circuit 19 leads, branching from the crankcase cooling circuit 11, to the device 21 for absorbing heat from the transmission 20. This device 21 and the transmission 20 have been explained in the preceding embodiments.
  • the transmission cooling circuit 19 Downstream of the device 21, the transmission cooling circuit 19, as shown, opens into a connecting line 28, which connects an output of the thermal management module 15 with the engine cooling circuit upstream of the branch in the cylinder head cooling circuit 10 and crankcase cooling circuit 11.
  • a connecting line 28 which connects an output of the thermal management module 15 with the engine cooling circuit upstream of the branch in the cylinder head cooling circuit 10 and crankcase cooling circuit 11.
  • the transmission cooling circuit 19 downstream of the device 21 in the thermal management module 15 or directly into the engine cooling circuit downstream of the thermal management module 15 opens.
  • the in Fig. 3 illustrated embodiment are modified such that the valve 14 in the crankcase cooling circuit 11 (on the portion which is separate from the cylinder head cooling circuit 10) is disposed downstream of the crankcase water jacket 13 and the transmission cooling circuit 19 downstream of the device 21 into the crankcase water jacket 13 opens.
  • the same effect would be as discussed above Fig. 3 or in connection with the preceding embodiments explained, namely, that switching off the crankcase cooling circuit 11 by means of the valve 14 automatically shuts off the transmission cooling circuit 19 and switching on the crankcase cooling circuit 11 by means of the valve 14th automatically turns on the transmission cooling circuit 19.
  • the transmission cooling circuit 19 is only flowed through by coolant (ie, is active) when the crankcase cooling circuit 11 is flowed through (ie, is active) and regardless of whether the cylinder head cooling circuit 10 is flowed through (ie is active).
  • the transmission cooling circuit 19 can also branch off from the cylinder head cooling circuit 10 between the coolant pump 5 (or the branching) and the cylinder head water jacket 12.
  • the effect of activating the transmission cooling circuit 19 depending on the crankcase cooling circuit 11 can also be realized in this arrangement by opening the transmission cooling circuit 19 into the crankcase cooling circuit 11 and switching downstream of this connection from the valve 14, as described above.
  • the coolant pump 5 may be arranged so that a branch in the cylinder head cooling circuit 10 and cylinder housing cooling circuit 11 is provided downstream of the coolant pump 5. It would then also be possible to branch off the transmission cooling circuit downstream of the coolant pump 5 and upstream of the branch.
  • the transmission cooling circuit 19 would not necessarily be introduced into the cylinder housing water jacket 13.
  • the transmission cooling circuit 19 could also be introduced directly into the thermal management module 15 or into the outlet of the cylinder head water jacket 12. In this case, however, would have the valve 14 with the above be described function provided in the transmission cooling circuit, so that the flow in the transmission cooling circuit 14, ie only the flow in the transmission cooling circuit, as described above can be switched.
  • the engine cooling circuit comprises a cylinder head cooling circuit 10 and a crankcase cooling circuit 11, wherein over a certain portion of the cylinder head cooling circuit 10 and the crankcase cooling circuit 11 run together, then split, run over a respective section separated from each other and then recombined.
  • the invention is not limited thereto and the two cooling circuits 10 and 11 could also be completely separate.
  • the engine oil cooling circuit 16 branches off from the crankcase cooling circuit 11 to the point 18 in the crankcase, ie in a formed in the crankcase material channel.
  • the transmission cooling circuit 19 branches off from the crankcase cooling circuit 11 to the engine oil heat exchanger 17 in the crankcase.
  • this embodiment is not limited thereto, and said portions extending in the crankcase can also run outside of the crankcase, as shown for example in FIG Fig. 3 the case is.
  • the engine oil cooling circuit 16 and the transmission cooling circuit 19 extends together from the crankcase cooling circuit 11 branching to a point downstream of the engine oil heat exchanger 17 and upstream of the check valve 22 in the crankcase, ie in a formed in the crankcase material channel.
  • this embodiment is not limited thereto, and said portions extending in the crankcase can also run outside of the crankcase, as shown for example in FIG Fig. 3 the case is.
  • the transmission cooling circuit 19 extends from the valve 14 and the crankcase cooling circuit 11 branches off to the device 21 outside the crankcase, ie outside the crankcase material.
  • this embodiment is not limited to this and the said section of the transmission cooling circuit 19 can also extend at least in sections in the crankcase, ie in a channel formed in the crankcase material.
  • the invention discloses a control method for a coolant circuit 1 with an engine cooling circuit 10, 11 in the coolant for cooling an internal combustion engine 6, 8 is circulated; a transmission cooling circuit 19 for cooling a transmission 20, which branches off from the engine cooling circuit 10, 11; a valve 14, which is arranged in the transmission cooling circuit 19, wherein the valve 14 is opened and closed depending on an operating condition of the engine and / or the transmission.
  • valve 14 is opened and closed depending on engine speed and / or engine torque.
  • valve 14 is opened only above a certain threshold of engine speed and / or engine torque.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Details Of Gearings (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP16728292.0A 2015-07-08 2016-06-08 Kühlmittelkreislauf für flüssigkeitsgekühlte getriebe Active EP3320197B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015212733.8A DE102015212733A1 (de) 2015-07-08 2015-07-08 Kühlmittelkreislauf für flüssigkeitsgekühlte Getriebe
PCT/EP2016/062934 WO2017005438A1 (de) 2015-07-08 2016-06-08 Kühlmittelkreislauf für flüssigkeitsgekühlte getriebe

Publications (2)

Publication Number Publication Date
EP3320197A1 EP3320197A1 (de) 2018-05-16
EP3320197B1 true EP3320197B1 (de) 2019-04-17

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US (1) US10480389B2 (zh)
EP (1) EP3320197B1 (zh)
CN (1) CN107532500B (zh)
DE (1) DE102015212733A1 (zh)
WO (1) WO2017005438A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015014514B4 (de) * 2015-11-11 2023-10-26 Deutz Aktiengesellschaft "Common-Rail" Wassermantel
CN110454269A (zh) * 2019-07-18 2019-11-15 中国第一汽车股份有限公司 一种发动机冷却***
CN113062793B (zh) * 2021-03-31 2022-06-03 贵州电子科技职业学院 一种汽车散热器回水管路结构
CN115217939B (zh) * 2022-01-04 2024-01-23 广州汽车集团股份有限公司 变速器的温控***及控制方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007128123A1 (en) * 2006-05-08 2007-11-15 Magna Powertrain Inc. Vehicle cooling system with directed flows

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512783A1 (de) * 1995-04-05 1996-10-10 Bayerische Motoren Werke Ag Vorrichtung zur Beeinflussung der Getriebeöltemperatur in Kraftfahrzeugen
US6427640B1 (en) * 2000-10-11 2002-08-06 Ford Global Tech., Inc. System and method for heating vehicle fluids
US6904752B2 (en) * 2001-11-30 2005-06-14 Delphi Technologies, Inc. Engine cylinder deactivation to improve the performance of exhaust emission control systems
JP4196802B2 (ja) * 2003-10-07 2008-12-17 株式会社デンソー 冷却水回路
JP4497082B2 (ja) * 2005-11-17 2010-07-07 トヨタ自動車株式会社 エンジンの冷却媒体循環装置
DE102009001129B4 (de) * 2009-02-25 2014-07-10 Ford Global Technologies, Llc Kühlstrategie für Verbrennungsmotoren
DE102010010594B4 (de) * 2010-03-08 2014-10-09 Audi Ag Kühlkreislauf für eine Brennkraftmaschine
JP2013538994A (ja) * 2010-08-25 2013-10-17 ダイムラー・アクチェンゲゼルシャフト 自動車のオートマチックトランスミッションのための油圧制御装置
DE102012200746A1 (de) * 2012-01-19 2013-07-25 Ford Global Technologies, Llc Brennkraftmaschine mit im Kühlmittelkreislauf angeordneter Pumpe und Verfahren zum Betreiben einer derartigen Brennkraftmaschine
JP5552507B2 (ja) * 2012-07-20 2014-07-16 本田技研工業株式会社 内燃機関
JP6094231B2 (ja) * 2013-01-22 2017-03-15 株式会社デンソー 内燃機関の冷却システム
JP2014145326A (ja) * 2013-01-30 2014-08-14 Daihatsu Motor Co Ltd 内燃機関
US8944017B2 (en) * 2013-05-30 2015-02-03 GM Global Technology Operations LLC Powertrain cooling system with cooling and heating modes for heat exchangers
DE102013217154A1 (de) * 2013-08-28 2015-03-05 Ford Global Technologies, Llc Temperieranordnung für Getriebeöl eines Kraftfahrzeugs sowie Verfahren zum Temperieren von Getriebeöl eines Kraftfahrzeugs
US9222571B2 (en) 2013-09-13 2015-12-29 Gm Global Technology Operations, Llc Temperature management system for transmission using split engine cooling
DE102013019687B3 (de) * 2013-11-26 2015-03-26 Audi Ag Kühlsystem für ein Hybridfahrzeug aufweisend zumindest eine elektrische Antriebsmaschine und zumindest eine Verbrennungskraftmaschine und Verfahren zu dessen Regelung
US20170241324A1 (en) * 2014-08-21 2017-08-24 Borgwarner Inc. Thermal management system with heat recovery and method of making and using the same
CN106852163A (zh) * 2014-10-28 2017-06-13 博格华纳公司 流体***以及制造和使用所述流体***的方法
DE202015101010U1 (de) * 2015-03-02 2015-03-20 Ford Global Technologies, Llc Wärmetauscheranordnung für ein Kraftfahrzeug

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007128123A1 (en) * 2006-05-08 2007-11-15 Magna Powertrain Inc. Vehicle cooling system with directed flows

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US10480389B2 (en) 2019-11-19
DE102015212733A1 (de) 2017-01-12
US20180066566A1 (en) 2018-03-08
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CN107532500B (zh) 2019-12-10
WO2017005438A1 (de) 2017-01-12
EP3320197A1 (de) 2018-05-16

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