WO2017101935A1 - Thermomanagementsystem für ein elektrisches antriebssystem, vorzugsweise für ein fahrzeug - Google Patents
Thermomanagementsystem für ein elektrisches antriebssystem, vorzugsweise für ein fahrzeug Download PDFInfo
- Publication number
- WO2017101935A1 WO2017101935A1 PCT/DE2016/200565 DE2016200565W WO2017101935A1 WO 2017101935 A1 WO2017101935 A1 WO 2017101935A1 DE 2016200565 W DE2016200565 W DE 2016200565W WO 2017101935 A1 WO2017101935 A1 WO 2017101935A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power electronics
- electric motor
- coolant
- management system
- thermal management
- 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.)
- Ceased
Links
Classifications
-
- 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
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20936—Liquid coolant with phase change
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/05—Cooling
Definitions
- Thermal management system for an electric drive vstem, preferably for a vehicle
- the invention relates to a thermal management system for an electric drive system, preferably for a vehicle, in which the electric drive comprises an electric motor and power electronics, wherein the electric motor and the power electronics are integrated in a cooling circuit and are cooled by a coolant circulating in the cooling circuit, wherein the coolant is circulated by a coolant pump.
- DE 10 2004 006 730 A1 and DE 10 201 1085750 A1 disclose methods for detecting a damage to a clutch, in which, in particular, the temperature development in the clutch is considered in order to take protective measures in the event of temperature excesses. This includes the clutch
- Actuator system which includes an electric motor and a, the electric motor driving power electronics, has a coolant circuit, which in particular cools the power electronics.
- the coolant circuit is integrated in a cooling cover of the power output stage, wherein the coolant circuit is constructed so that it cools independently more power amplifiers of the power electronics. This is done by the division into several parallel paths of the cooling circuit.
- the proposed cooling system is firmly installed in the cooling cover, so that cooling of the power modules or other components of the actuator system can not be changed and varied.
- the invention has for its object to provide a thermal management system for an electric drive system in which the coolant allows variable cooling of individual components.
- the object is achieved in that the electric motor and the power electronics are each in spatial contact with a cooling unit, the cooling units of the electric motor and the power electronics are arranged parallel to each other and between the coolant pump and the cooling units, an electrically controlled coolant distributor is positioned which has two outputs, each one an output leads to the cooling unit of the electric motor or to the cooling unit of the power electronics and the outputs of the cooling units in a channel summarized on the coolant pump are returned.
- This has the advantage that a continuous output of the electric drive system is increased by the cooling means split in parallel branches by the selective cooling of the power electronics and the electric motor. Due to the thermal operating point adaptation of the components power electronics and electric motor, a better overall efficiency of the electric drive system is achieved in partial load points.
- an increased short-term performance of the electric drive system is possible by a thermal preconditioning of the components power electronics and electric motor to create a higher temperature difference.
- the demand-based cooling of the power electronics and the electric motor increases the service life of the components.
- This thermal management system also offers advantages in the integration of the thus equipped electric drive system, since it preferably has only one coolant inlet and one coolant outlet from and to the coolant pump. This reduces the integration effort at the vehicle manufacturer. By utilizing the heat loss in the interior of the vehicle, affyinnenraumkondi- tion is possible, resulting in comfort advantages in the vehicle.
- the outputs in the coolant distributor upstream of an electrically actuated valve for controlling a volume flow of the coolant to the cooling unit of the electric motor and / or the cooling unit of the power electronics.
- the electrically actuable valve is designed as a continuously variable mechanical diaphragm. Since this mechanical aperture is continuously adjustable, the volume flow can be varied as desired at each outlet.
- a control range of the valve is between 0 to 100% of the volume flow of the coolant per outlet. This can ensure that the entire volume flow flows through only one output to the cooling unit of the electric motor or the cooling unit of the power electronics and the other output is free from the coolant.
- a control strategy of the volume flow is stored in a computing unit of the power electronics as software, wherein an electric power amplifier is arranged to control the valve of the coolant distributor in the power electronics.
- This is used in the power electronics itself existing computing technology to control the valve. This represents a very cost effective solution because it can be dispensed with further electronic units.
- a switching valve is positioned at an outlet of the coolant unit of the power electronics or at an output of the cooling unit of the electric motor, which is connected on the one hand with a coolant pump and on the other hand is guided to an input of the cooling unit of the electric motor or the input of the cooling unit of the power electronics.
- the changeover valve can be controlled electromechanically.
- the control of the changeover valve also takes place in this case via the power electronics, which represents a particularly cost-effective implementation.
- a multi-way valve is arranged in the merged outputs of the cooling units of the power electronics and the electric motor, which releases or closes a coolant bypass to a further cooling unit of a vehicle unit.
- the proposed thermal management system is thus easily expandable, so that other components of the vehicle, such as a high-voltage battery, are involved, with the result that they are brought faster to an optimum operating temperature.
- the coolant pump is pressure-controlled. This is necessary in order to compensate for pressure losses at different system states of the thermal management system. Such different pressure losses occur when switching from serial to parallel operation of the cooling circuit or vice versa. To reduce the total system losses, the pump power of the coolant pump can be reduced in different system states.
- a development of the invention relates to a hybrid module with a power electronics and an electric motor, in which a thermal management system is integrated.
- the thermal management system is designed according to at least one of the features described in this patent application.
- the invention allows numerous embodiments. Some of these will be explained in more detail with reference to the figures shown in the drawing.
- FIG. 1 shows a first embodiment of the Thermonnana- management system according to the invention
- FIG. 3 shows a third exemplary embodiment of the thermal management system according to the invention
- FIG. 4 shows a torque / speed diagram of the electric drive system
- Fig. 5 shows an embodiment of a hybrid module according to the invention.
- FIG. 1 shows a first exemplary embodiment of the thermal management system according to the invention, as used in electrical drive systems or electric actuators.
- Fig. 1 shows a coolant circuit with a controllable coolant pump 1, which leads to a designed as a volume flow divider 2 coolant distributor.
- the volume flow divider 2 has an input A and two outputs B1 and B2.
- the output B1 leads to a cooling unit 3 of an electric motor, while the output B2 leads to a cooling unit 4 of power electronics.
- the outputs C1, C2 of the cooling units 3, 4 of the electric motor or the power electronics are brought together, so that only one channel 5 is returned to the coolant pump 1 via a vehicle cooler 16.
- the cooling units 3, 4 take the output from the power electronics and the electric motor Wäre, while the vehicle radiator 16 outputs heat loss to the environment.
- a multi-way valve 6 is arranged, which regulates the volume flow of the coolant as needed between the cooling unit 4 of the power electronics and the cooling unit 3 of the electric motor.
- the multi-way valve 6 is designed as an electromechanical valve which is infinitely variable.
- the volume flow is adjusted in the multi-way valve 6 by means of mechanical diaphragms, wherein the control range of 0 to 100% volume flow per output B1, B2 of the volume flow distributor 2 ranges. This allows a blocking of an output B1, B2, so that the entire volume flow of the coolant through only one of the outputs B1, B2 is passed and so only the power electronics or only the electric motor can be cooled.
- the electrical control of the volume flow divider 2 takes place via the power electronics 7, in which in the software of a computing unit 8, the control strategy for the thermal management system is stored. Only one electric output stage 9 is additionally necessary in the power electronics 7 in order to control the multi-way valve 2 (FIG. 5).
- the regulation of the volume flow takes place in dependence on a current load point of the electric drive train. In this case, certain prediction algorithms, ie a future behavior of the thermal management system, and adjustment parameters, such as, for example, an operating mode of a vehicle normal, eco or sport, are taken into account.
- FIG. 2 shows a second exemplary embodiment of the thermal management system according to the invention, in which, in addition to the variant shown in FIG. 1, a changeover valve 10 is arranged in the cooling circuit.
- the switching valve 10 is connected to the output C2 of the cooling unit 4 of the power electronics and configured as a 3: 2 valve, wherein three terminals are present and two switching states can be realized. The switching states are also realized on an electromechanical basis.
- the output T of the switching valve 10 leads to an input D1 of the cooling unit 3 of the electric motor.
- the output P of the switching valve 10 is in turn connected to the output C1 of the cooling unit 3 of the electric motor to the channel 5 and returned to the coolant pump 1. Due to this configuration can be from the parallel connection of the cooling units 3, 4 create a serial circuit. But it is also conceivable that the additional switching valve 10 alternatively on
- Output C1 of the cooling unit 3 of the electric motor is arranged, wherein the terminal T is led to the input D2 of the cooling unit 4 of the power electronics.
- FIG. 3 shows a further exemplary embodiment of the thermal management system according to the invention with which thermal conditioning of further vehicle units is possible.
- a further switching valve 1 1 is arranged, with its output T to a cooling unit 12 for a Vehicle unit, such as a high-voltage battery leads, the output G of the cooling unit 12 of the vehicle unit is merged with the output P of the switching valve 1 1 and in turn leads to the coolant pump 1.
- the thermal management system can be expanded with a heat exchange unit for heating the interior of the vehicle.
- FIG. 4 shows a basic profile of torque and rotational speed of the electric drive unit in a diagram which is operated with the described thermal management system.
- the diagram shows how the available total volume flow of the coolant can be variably divided so that it is optimal for the entire system.
- area I a large thermal load on the inverter in the power electronics, so that in this area, ie at low speeds of the electric drive unit, a strong cooling of the power electronics makes sense.
- a large thermal load on the electric motor is given, so that at this point a strong cooling of the electric motor is necessary (area II).
- thermal management system To set such a thermal management system is also a dynamic switching between the described parallel and series connection between cooling elements 3, 4 of the power electronics and the electric motor of the drive system possible.
- the distribution of the total volume flow of the coolant thus depends on the particular operating point of the drive system, such as torque and speed, which can draw conclusions about the performance of the drive system.
- a hybrid module 13 is shown, in which the power electronics 7 is arranged in a housing 14, wherein the electric motor 15 is positioned on this housing 14.
- the thermal management system is shown only by the volume flow divider 2 and the switching valve 10.
- the cooling circuits of the power electronics 7 and the electric motor 15 are spatially very close.
- a direct connection of the cooling circuits in the hybrid module 13 saves a complex external connection, for example, with hoses.
- the proposed solution is provided for all electric drive systems and actuators, which include a power electronics and an electric motor. List of references for coolant pump
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Motor Or Generator Cooling System (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/063,093 US11186164B2 (en) | 2015-12-17 | 2016-11-30 | Thermal management system for an electric drive system, preferably for a vehicle |
| KR1020187019647A KR20180095572A (ko) | 2015-12-17 | 2016-11-30 | 바람직하게는 차량용의, 전기 구동 시스템용의 열관리 시스템 |
| DE112016005791.1T DE112016005791A5 (de) | 2015-12-17 | 2016-11-30 | Thermomanagementsystem für ein elektrisches Antriebssystem, vorzugsweise für ein Fahrzeug |
| CN201680071385.8A CN108367669A (zh) | 2015-12-17 | 2016-11-30 | 用于电驱动系统,优选用于车辆的电驱动系统的热管理系统 |
| JP2018531663A JP6882300B2 (ja) | 2015-12-17 | 2016-11-30 | 電動式の駆動システム、好ましくは車両用の電動式の駆動システム用の熱管理システム |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015225644.8 | 2015-12-17 | ||
| DE102015225644.8A DE102015225644A1 (de) | 2015-12-17 | 2015-12-17 | Thermomanagementsystem für ein elektrisches Antriebssystem, vorzugsweise für ein Fahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017101935A1 true WO2017101935A1 (de) | 2017-06-22 |
Family
ID=57609645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2016/200565 Ceased WO2017101935A1 (de) | 2015-12-17 | 2016-11-30 | Thermomanagementsystem für ein elektrisches antriebssystem, vorzugsweise für ein fahrzeug |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11186164B2 (de) |
| JP (1) | JP6882300B2 (de) |
| KR (1) | KR20180095572A (de) |
| CN (1) | CN108367669A (de) |
| DE (2) | DE102015225644A1 (de) |
| WO (1) | WO2017101935A1 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017211561A1 (de) * | 2017-07-06 | 2019-01-10 | Siemens Aktiengesellschaft | Flugzeug mit einem Leistungselektronikbauteil |
| JP7190350B2 (ja) * | 2018-12-28 | 2022-12-15 | マーレジャパン株式会社 | 車両用の熱交換システム |
| DE102019102154B4 (de) * | 2019-01-29 | 2024-02-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kühlsystem und Verfahren zum Kühlen eines Ladesäulensystems zum Aufladen elektrisch antreibbarer Kraftfahrzeuge |
| DE102019109313B4 (de) * | 2019-04-09 | 2021-09-30 | Schaeffler Technologies AG & Co. KG | Elektrischer Antrieb mit Wärmetauscherabschnitt |
| DE102020128728B4 (de) * | 2020-11-02 | 2022-09-08 | Audi Aktiengesellschaft | Kraftfahrzeug und Verfahren zum Betrieb einer Kühleinrichtung |
| DE102021106599A1 (de) * | 2021-03-18 | 2022-09-22 | Man Truck & Bus Se | Flüssigkeitsgekühlter Wechselrichter zur Ansteuerung eines elektrischen Antriebsmotors eines Fahrzeugs |
| JP7529615B2 (ja) * | 2021-05-24 | 2024-08-06 | トヨタ自動車株式会社 | 電気自動車用の熱管理システム |
| DE102021214729A1 (de) * | 2021-12-20 | 2023-06-22 | Mahle International Gmbh | Kühlsystem |
| FR3132414A1 (fr) * | 2022-01-28 | 2023-08-04 | Psa Automobiles Sa | Circuit de refroidissement reconfigurable |
| CN116039367B (zh) * | 2023-02-03 | 2025-06-06 | 赛力斯汽车有限公司 | 一种新能源汽车的热管理系统及新能源汽车 |
| JP2025001250A (ja) * | 2023-06-20 | 2025-01-08 | トヨタ自動車株式会社 | 駆動装置 |
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-
2015
- 2015-12-17 DE DE102015225644.8A patent/DE102015225644A1/de not_active Withdrawn
-
2016
- 2016-11-30 KR KR1020187019647A patent/KR20180095572A/ko not_active Ceased
- 2016-11-30 US US16/063,093 patent/US11186164B2/en active Active
- 2016-11-30 WO PCT/DE2016/200565 patent/WO2017101935A1/de not_active Ceased
- 2016-11-30 JP JP2018531663A patent/JP6882300B2/ja active Active
- 2016-11-30 CN CN201680071385.8A patent/CN108367669A/zh active Pending
- 2016-11-30 DE DE112016005791.1T patent/DE112016005791A5/de active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004006730A1 (de) | 2003-02-12 | 2004-08-26 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Verfahren zum Durchführen von zumindest einer Schutzstrategie für die Kupplung eines automatisierten Schaltgetriebes eines Fahrzeuges |
| KR20080054405A (ko) * | 2005-10-25 | 2008-06-17 | 도요다 지도샤 가부시끼가이샤 | 냉각 시스템, 냉각 시스템의 제어 방법, 및 냉각 시스템탑재 차량 |
| US20080217080A1 (en) * | 2007-03-09 | 2008-09-11 | Oliver Maier | Noise-comfort function for cooling systems with proportional variable speed fans |
| DE102011085750A1 (de) | 2010-11-11 | 2012-05-16 | Schaeffler Technologies Gmbh & Co. Kg | Verfahren zur Steuerung einer automatisierten Kupplung oder eines automatisierten Getriebes oder einer Antriebseinheit in einem Fahrzeug |
| AT512123A1 (de) * | 2011-10-27 | 2013-05-15 | Avl List Gmbh | Elektrische maschine mit einer leistungselektronik |
| US20130151051A1 (en) * | 2011-12-07 | 2013-06-13 | Denso Corporation | Control apparatus for electric rotating machine |
| CN104057779A (zh) * | 2013-03-19 | 2014-09-24 | 罗伯特·博世有限公司 | 电动的机动车轴装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019502347A (ja) | 2019-01-24 |
| JP6882300B2 (ja) | 2021-06-02 |
| KR20180095572A (ko) | 2018-08-27 |
| CN108367669A (zh) | 2018-08-03 |
| US20200276899A1 (en) | 2020-09-03 |
| DE102015225644A1 (de) | 2017-06-22 |
| DE112016005791A5 (de) | 2018-09-06 |
| US11186164B2 (en) | 2021-11-30 |
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