DE102016012876A1 - Electric drive system for a vehicle - Google Patents
Electric drive system for a vehicle Download PDFInfo
- Publication number
- DE102016012876A1 DE102016012876A1 DE102016012876.3A DE102016012876A DE102016012876A1 DE 102016012876 A1 DE102016012876 A1 DE 102016012876A1 DE 102016012876 A DE102016012876 A DE 102016012876A DE 102016012876 A1 DE102016012876 A1 DE 102016012876A1
- Authority
- DE
- Germany
- Prior art keywords
- phase
- battery
- inverters
- drive system
- electric
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/007—Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
Die Erfindung betrifft ein elektrisches Antriebssystem (1) für ein Fahrzeug, umfassend eine elektrische Drehstrommaschine (2), eine Batterie (3) zur elektrischen Energieversorgung der elektrischen Drehstrommaschine (2) und zwei Inverter (4, 5). Erfindungsgemäß weist die elektrische Drehstrommaschine (2) zwei getrennte Drehstromsysteme (2.1, 2.2) auf, wobei die beiden Drehstromsysteme (2.1, 2.2) mit jeweils einem der Inverter (4, 5) elektrisch gekoppelt sind, die mit unterschiedlichen elektrochemischen Teilbereichen (3.1, 3.2) der Batterie (3) elektrisch gekoppelt sind.The invention relates to an electric drive system (1) for a vehicle, comprising a three-phase electrical machine (2), a battery (3) for supplying electrical power to the three-phase electrical machine (2) and two inverters (4, 5). According to the invention, the three-phase electrical machine (2) has two separate three-phase systems (2.1, 2.2), wherein the two three-phase systems (2.1, 2.2) are electrically coupled to one of the inverters (4, 5) which are connected to different electrochemical sections (3.1, 3.2 ) of the battery (3) are electrically coupled.
Description
Die Erfindung betrifft ein elektrisches Antriebssystem für ein Fahrzeug nach den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to an electric drive system for a vehicle according to the features of the preamble of claim 1.
Aus dem Stand der Technik sind elektrische Antriebssysteme für Fahrzeuge allgemein bekannt.Electric drive systems for vehicles are generally known from the prior art.
Des Weiteren wird in der
Der Erfindung liegt die Aufgabe zu Grunde, ein gegenüber dem Stand der Technik verbessertes elektrisches Antriebssystem für ein Fahrzeug anzugeben.The invention is based on the object to provide an improved over the prior art electrical drive system for a vehicle.
Die Aufgabe wird erfindungsgemäß gelöst durch ein elektrisches Antriebssystem für ein Fahrzeug mit den Merkmalen des Anspruchs 1.The object is achieved by an electric drive system for a vehicle having the features of claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Ein elektrisches Antriebssystem für ein Fahrzeug, beispielsweise für ein Elektrofahrzeug oder Hybridfahrzeug, umfasst eine elektrische Drehstrommaschine, eine Batterie zur elektrischen Energieversorgung der elektrischen Drehstrommaschine und zwei Inverter.An electric drive system for a vehicle such as an electric vehicle or a hybrid vehicle includes a three-phase electric machine, a battery for supplying electric power to the three-phase electric machine, and two inverters.
Erfindungsgemäß weist die elektrische Drehstrommaschine zwei getrennte Drehstromsysteme auf, wobei die beiden Drehstromsysteme mit jeweils einem der Inverter elektrisch gekoppelt sind, die mit unterschiedlichen elektrochemischen Teilbereichen der Batterie elektrisch gekoppelt sind, beispielsweise mit unterschiedlichen Einzelzellen und/oder unterschiedlichen Zellverbünden oder Zellpacks, die jeweils mehrere Einzelzellen aufweisen. Derartige Inverter werden auch als Wechselrichter bezeichnet.According to the invention, the three-phase electrical machine has two separate three-phase systems, wherein the two three-phase systems are electrically coupled to one of the inverters, which are electrically coupled to different electrochemical portions of the battery, for example with different single cells and / or different cell networks or cell packs, each of which comprises a plurality of single cells exhibit. Such inverters are also referred to as inverters.
Durch die erfindungsgemäße Lösung können Batterien mit einer höheren elektrischen Spannung verwendet werden, wobei auch derartige Batterien mit einer Ladeinfrastruktur, welche nur für Batterien mit einer geringeren elektrischen Spannung ausgelegt sind, geladen werden können. So ist es derzeit beispielsweise noch der Fall, dass die bestehende Gleichstromladeinfrastruktur für Elektrofahrzeuge üblicherweise nur Batterien bis zu einer elektrischen Spannung von 500 V unterstützt. Durch die erfindungsgemäße Lösung wird es ermöglicht, ohne Zusatzbauteile auch Batterien mit größerer elektrischer Spannung an dieser bestehenden Infrastruktur zu laden. Dazu können die beiden Inverter derart angesteuert werden, dass die elektrische Energie, welche während des Ladens in den mit dem einen Inverter elektrisch gekoppelten Teilbereich der Batterie eingespeist wird, über die beiden Inverter auch in den mit dem zweiten Inverter elektrisch gekoppelten anderen Teilbereich der Batterie eingespeist wird oder zumindest teilweise eingespeist wird. Dadurch kann das Fahrzeug sowohl an einer Ladeinfrastruktur, welche für Batterien mit kleineren elektrischen Spannungen ausgelegt ist, als auch an einer Ladeinfrastruktur, welche für die elektrische Spannung der hier verwendeten Batterie ausgelegt ist, jeweils ohne Zusatzkomponenten geladen werden.By the solution according to the invention batteries can be used with a higher electrical voltage, whereby such batteries can be charged with a charging infrastructure, which are designed only for batteries with a lower electrical voltage. For example, it is currently the case that the existing DC charging infrastructure for electric vehicles usually only supports batteries up to a voltage of 500 V. The inventive solution makes it possible to load without additional components and batteries with greater electrical voltage to this existing infrastructure. For this purpose, the two inverters can be controlled in such a way that the electrical energy which is fed during charging into the portion of the battery electrically coupled to one inverter is also fed via the two inverters into the other portion of the battery which is electrically coupled to the second inverter is or is at least partially fed. As a result, the vehicle can be charged both at a charging infrastructure, which is designed for batteries with lower electrical voltages, as well as at a charging infrastructure, which is designed for the electrical voltage of the battery used here, each without additional components.
Die elektrische Kopplung der beiden Inverter mit jeweils einem Teilbereich der Batterie ermöglicht zudem eine Verwendung von Halbleitern mit geringerer Sperrfähigkeit. Dies verringert Verluste im Vergleich zu einer Verwendung von Halbleitern, die die größere elektrische Gesamtspannung der Batterie sperren könnten.The electrical coupling of the two inverters, each with a portion of the battery also allows use of semiconductors with lower blocking capability. This reduces losses compared to using semiconductors that could block the greater total battery voltage.
Des Weiteren werden durch die erfindungsgemäße Lösung Wirkungsgradvorteile im Teillastbereich erzielt, da hier einer der beiden Inverter abgeschaltet werden kann, wodurch Grundverluste reduziert werden.Furthermore, efficiency advantages in the partial load range are achieved by the solution according to the invention, since one of the two inverters can be switched off here, as a result of which ground losses are reduced.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand einer Zeichnung näher erläutert.Embodiments of the invention will be explained in more detail below with reference to a drawing.
Dabei zeigt:Showing:
Diese elektrische Drehstrommaschine
Des Weiteren umfasst das elektrische Antriebssystem
Das elektrische Antriebssystem
Die beiden Drehstromsysteme
Eine Gleichspannungsversorgung der Inverter
Über einen Stator der elektrischen Drehstrommaschine
Alternativ zur oben beschriebenen gleichmäßigen Aufteilung der Gesamtnennspannung UG der Batterie
Insbesondere zum Laden der Batterie
Zusätzlich zu den Invertern
Die Verwendung der beiden Inverter
Des Weiteren ermöglicht es die beschriebene Lösung, in einem Teillastbereich der elektrischen Drehstrommaschine
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Antriebssystemdrive system
- 22
- DrehstrommaschinePhase machine
- 2.1, 2.22.1, 2.2
- DrehstromsystemThree-phase system
- 33
- Batteriebattery
- 3.1, 3.23.1, 3.2
- Teilbereichsubregion
- 4, 54, 5
- Inverterinverter
- SS
- Schalterswitch
- UG U G
- GesamtnennspannungTotal nominal voltage
- UT1, UT2 U T1 , U T2
- TeilbereichsnennspannungSubregion rated voltage
- W1, W2W1, W2
- Wicklungwinding
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10352508 A1 [0003] DE 10352508 A1 [0003]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016012876.3A DE102016012876A1 (en) | 2016-10-28 | 2016-10-28 | Electric drive system for a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016012876.3A DE102016012876A1 (en) | 2016-10-28 | 2016-10-28 | Electric drive system for a vehicle |
Publications (1)
Publication Number | Publication Date |
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DE102016012876A1 true DE102016012876A1 (en) | 2017-06-01 |
Family
ID=58693243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102016012876.3A Withdrawn DE102016012876A1 (en) | 2016-10-28 | 2016-10-28 | Electric drive system for a vehicle |
Country Status (1)
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DE (1) | DE102016012876A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018000465A1 (en) | 2018-01-22 | 2018-07-12 | Daimler Ag | Electric drive system for a vehicle and method of operation thereof |
DE102018000488A1 (en) | 2018-01-22 | 2018-07-12 | Daimler Ag | Electric drive system for a vehicle and method of operation thereof |
DE102018004623A1 (en) | 2018-06-11 | 2019-01-31 | Daimler Ag | Method for supplying power to an electrically powered vehicle and power supply device for an electrically powered vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10352508A1 (en) | 2003-11-11 | 2005-06-02 | Robert Bosch Gmbh | Method for powering a multi-stranded, pulse width modulation controlled electric motor |
-
2016
- 2016-10-28 DE DE102016012876.3A patent/DE102016012876A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10352508A1 (en) | 2003-11-11 | 2005-06-02 | Robert Bosch Gmbh | Method for powering a multi-stranded, pulse width modulation controlled electric motor |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018000465A1 (en) | 2018-01-22 | 2018-07-12 | Daimler Ag | Electric drive system for a vehicle and method of operation thereof |
DE102018000488A1 (en) | 2018-01-22 | 2018-07-12 | Daimler Ag | Electric drive system for a vehicle and method of operation thereof |
WO2019141492A1 (en) | 2018-01-22 | 2019-07-25 | Daimler Ag | Electrical drive system for a vehicle and method for the operation thereof |
WO2019141491A1 (en) | 2018-01-22 | 2019-07-25 | Daimler Ag | Electrical drive system for a vehicle and method for the operation thereof |
DE102018004623A1 (en) | 2018-06-11 | 2019-01-31 | Daimler Ag | Method for supplying power to an electrically powered vehicle and power supply device for an electrically powered vehicle |
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Legal Events
Date | Code | Title | Description |
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R230 | Request for early publication | ||
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: B60L0011180000 Ipc: B60L0050600000 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |