DE102017216388B4 - Traction network of a motor vehicle - Google Patents
Traction network of a motor vehicle Download PDFInfo
- Publication number
- DE102017216388B4 DE102017216388B4 DE102017216388.7A DE102017216388A DE102017216388B4 DE 102017216388 B4 DE102017216388 B4 DE 102017216388B4 DE 102017216388 A DE102017216388 A DE 102017216388A DE 102017216388 B4 DE102017216388 B4 DE 102017216388B4
- Authority
- DE
- Germany
- Prior art keywords
- inductance
- switching elements
- switching element
- inductances
- connection
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53875—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output
-
- 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
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
- B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
- B60L53/24—Using the vehicle's propulsion converter for charging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- 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
- B60L2210/10—DC to DC converters
-
- 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
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
Traktionsnetz (1) eines Kraftfahrzeugs, umfassend mindestens ein Steuergerät (6), eine Hochvoltbatterie (2), mindestens einen Zwischenkreiskondensator (3), eine dreiphasige Elektromaschine (5), einen Wechselrichter (4) mit drei Halbbrücken (7.1-7.3), wobei in den Halbbrücken (7.1-7.3) jeweils mindestens zwei Halbleiterschaltelemente (8.1-8.3; 9.1-9.3) angeordnet sind, zu denen jeweils eine Diode (D1-D6) antiparallel geschaltet ist, wobei mindestens ein Anschluss (A) zum Anschließen einer externen Gleichspannungsquelle vorgesehen ist, wobei das Steuergerät (6) derart ausgebildet ist, den Wechselrichter (4) derart anzusteuern, dass dieser unter Einschluss der Induktivitäten (L1-L3) der Elektromaschine (5) als DC/DC-Wandler betrieben wird, wobeimindestens der Induktivität (L3) einer Phase Schaltelemente zugeordnet sind, wobei das Steuergerät (6) derart ausgebildet ist, die Schaltelemente derart anzusteuern, dass der Stromfluss durch die Induktivität (L3) gegensinnig zum Stromfluss durch die Induktivitäten (L1, L2) der beiden anderen Phasen ist,dadurch gekennzeichnet, dassder Anschluss (A) mit einem Sternpunkt (SP) der Elektromaschine (5) verbunden ist, wobei der Induktivität (L3) drei Schaltelemente (S10-S12) zugeordnet sind, wobei ein erstes Schaltelement (S11) zwischen dem Sternpunkt (SP) und einem ersten Anschluss der Induktivität (L3), ein zweites Schaltelement (S10) zwischen Sternpunkt (SP) und einem zweiten Anschluss der Induktivität (L3) und das dritte Schaltelement (S12) zwischen dem ersten Anschluss der Induktivität (L3) und einem Mittelabgriff (M3) der zugeordneten Halbbrücke (7.3) angeordnet ist.Traction network (1) of a motor vehicle, comprising at least one control unit (6), a high-voltage battery (2), at least one intermediate circuit capacitor (3), a three-phase electric machine (5), an inverter (4) with three half bridges (7.1-7.3), wherein In the half bridges (7.1-7.3) at least two semiconductor switching elements (8.1-8.3; 9.1-9.3) are arranged, to each of which a diode (D1-D6) is connected in anti-parallel, with at least one connection (A) for connecting an external direct voltage source is provided, the control device (6) being designed to control the inverter (4) in such a way that it is operated as a DC / DC converter including the inductances (L1-L3) of the electric machine (5), with at least the inductance ( L3) switching elements are assigned to a phase, the control device (6) being designed to control the switching elements in such a way that the current flow through the inductance (L3) is opposite to the current flow through the d The inductances (L1, L2) of the other two phases are characterized in that the connection (A) is connected to a star point (SP) of the electric machine (5), with three switching elements (S10-S12) being assigned to the inductance (L3) , wherein a first switching element (S11) between the star point (SP) and a first connection of the inductance (L3), a second switching element (S10) between the star point (SP) and a second connection of the inductance (L3) and the third switching element (S12 ) is arranged between the first connection of the inductance (L3) and a center tap (M3) of the associated half-bridge (7.3).
Description
Die Erfindung betrifft ein Traktionsnetz eines Kraftfahrzeuges.The invention relates to a traction network of a motor vehicle.
Ein Traktionsnetz eines Kraftfahrzeuges umfasst üblicherweise mindestens ein Steuergerät, eine Hochvoltbatterie, mindestens einen Zwischenkreiskondensator, eine dreiphasige Elektromaschine und einen Wechselrichter mit drei Halbbrücken. In den Halbbrücken sind Halbleiterschaltelemente angeordnet, die vorzugsweise als Transistoren ausgebildet sind, wobei jede Halbbrücke ein Low-Side und ein High-Side-Schaltelement aufweist, zwischen denen der Mittelabgriff der Halbbrücke liegt. Antiparallel zu den Halbleiterschaltelementen sind Dioden angeordnet, die die Funktion von Freilaufdioden aufweisen. Dabei ist es weiter bekannt, dass das Traktionsnetz einen Anschluss zum Anschließen einer externen Gleichspannungsquelle vorgesehen ist, wobei das Steuergerät derart ausgebildet ist, den Wechselrichter derart auszusteuern, dass dieser unter Einschluss der Induktivitäten der Elektromaschine als DC/DC-Wandler arbeitet.A traction network of a motor vehicle usually comprises at least one control device, a high-voltage battery, at least one intermediate circuit capacitor, a three-phase electric machine and an inverter with three half bridges. In the half bridges, semiconductor switching elements are arranged, which are preferably designed as transistors, each half bridge having a low-side and a high-side switching element, between which the center tap of the half-bridge is located. Diodes which function as free-wheeling diodes are arranged anti-parallel to the semiconductor switching elements. It is also known that the traction network is provided with a connection for connecting an external DC voltage source, the control device being designed to control the inverter in such a way that it works as a DC / DC converter including the inductances of the electric machine.
Ein solches Traktionsnetz wird beispielsweise in der
Aus der
Der Erfindung liegt das technische Problem zugrunde, ein Traktionsnetz für ein Kraftfahrzeug zu schaffen, wobei die Funktionalität des Wechselrichters, genutzt als DC/DC-Wandler, insbesondere als Hochsetzsteller verbessert ist.The invention is based on the technical problem of creating a traction network for a motor vehicle, the functionality of the inverter, used as a DC / DC converter, in particular as a step-up converter, being improved.
Die Lösung des technischen Problems ergibt sich durch ein Traktionsnetz mit den Merkmalen des Anspruchs 1, 2 oder 5. Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.The solution to the technical problem results from a traction network with the features of
Hierzu umfasst das Traktionsnetz mindestens ein Steuergerät, eine Hochvoltbatterie, mindestens einen Zwischenkreiskondensator, eine dreiphasige Elektromaschine und einen Wechselrichter mit drei Halbbrücken, wobei in den Halbbrücken jeweils mindestens zwei Halbleiterschaltelemente angeordnet sind, zu denen jeweils eine Diode antiparallel geschaltet ist. Weiter ist mindestens ein Anschluss zum Anschließen einer externen Gleichspannungsquelle vorgesehen. Das Steuergerät ist derart ausgebildet, den Wechselrichter derart anzusteuern, dass dieser unter Einschluss der Induktivitäten der Elektromaschine als DC/DC-Wandler betrieben wird. Dabei sind mindestens der Induktivität einer Phase Schaltelemente zugeordnet, wobei das Steuergerät derart ausgebildet ist, die Schaltelemente derart anzusteuern, dass der Stromfluss durch die Induktivität gegensinnig zum Stromfluss durch die Induktivitäten der beiden anderen Phasen ist. Hierdurch heben sich die erzeugten magnetischen Felder teilweise nicht auf, sodass die wirksame Induktivität erhöht wird.For this purpose, the traction network comprises at least one control unit, a high-voltage battery, at least one intermediate circuit capacitor, a three-phase electric machine and an inverter with three half-bridges, with at least two semiconductor switching elements being arranged in each of the half-bridges, with a diode being connected in antiparallel to each. At least one connection is also provided for connecting an external DC voltage source. The control device is designed to control the inverter in such a way that it is operated as a DC / DC converter, including the inductances of the electric machine. Switching elements are assigned to at least the inductance of one phase, the control device being designed to control the switching elements in such a way that the current flow through the inductance is in the opposite direction to the current flow through the inductances of the other two phases. As a result, the generated magnetic fields do not cancel each other out, so that the effective inductance is increased.
Dabei ist dabei der Anschluss der externen Gleichspannungsquelle mit einem Sternpunkt der Elektromaschine verbunden. Weiter sind der Induktivität drei Schaltelemente zugeordnet, wobei ein erstes Schaltelement zwischen dem Sternpunkt und einem ersten Anschluss der Induktivität, ein zweites Schaltelement zwischen Sternpunkt und einem zweiten Anschluss der Induktivität und das dritte Schaltelement zwischen dem ersten Anschluss der Induktivität und einem Mittelabgriff der zugeordneten Halbbrücke angeordnet ist.The connection of the external direct voltage source is connected to a star point of the electric machine. Furthermore, three switching elements are assigned to the inductance, a first switching element being arranged between the star point and a first connection of the inductance, a second switching element between the star point and a second connection of the inductance and the third switching element between the first connection of the inductance and a center tap of the assigned half bridge is.
In einer alternativen Ausführungsform ist der Anschluss über mindestens ein Schaltelement an ein Low-Side Halbleiterschaltelement geführt, wobei mindestens ein weiteres Schaltelement zwischen dem Low-Side Halbleiterschaltelement und den benachbarten Low-Side Halbleiterschaltelementen angeordnet ist. Der Vorteil dieser Ausführungsform ist, dass der Sternpunkt nicht mehr herausgeführt werden muss, wobei sich zusätzlich teilweise die Induktivitäten addieren, da die Induktivität der Phasen, über die der Strom eingespeist wird, in Reihe zu den beiden Induktivitäten geschaltet ist.In an alternative embodiment, the connection is routed to a low-side semiconductor switching element via at least one switching element, at least one further switching element being arranged between the low-side semiconductor switching element and the adjacent low-side semiconductor switching elements. The advantage of this embodiment is that the star point no longer has to be brought out, with the inductances also partially adding up since the inductance of the phases through which the current is fed is connected in series with the two inductances.
In einer weiteren Ausführungsform ist jedem Low-Side-Halbleiterschaltelement ein Schaltelement zugeordnet, wobei zwischen den drei Low-Side-Halbleiterschaltelementen jeweils ein weiteres Schaltelement zugeordnet ist, wobei das Steuergerät derart ausgebildet ist, dass jeweils nur ein Low-Side-Halbleiterschaltelement mit dem Anschluss verbunden ist. Somit kann die thermische und elektrische Belastung der Bauelemente verteilt werden, indem jeweils die Phase, über die der Strom eingespeist wird, gewechselt werden kann.In a further embodiment, a switching element is assigned to each low-side semiconductor switching element, a further switching element being assigned between the three low-side semiconductor switching elements, the control device being designed such that only one low-side semiconductor switching element is connected to the terminal connected is. Thus, the thermal and electrical load on the components can be distributed by each Phase through which the electricity is fed in can be changed.
In einer weiteren Ausführungsform ist das mindestens eine Schaltelement und/oder das mindestens eine weitere Schaltelement als Relais oder als Halbleiterschalter ausgebildet. Der Vorteil des Relais ist die galvanische Trennung der Phasen am Anschluss.In a further embodiment, the at least one switching element and / or the at least one further switching element is designed as a relay or as a semiconductor switch. The advantage of the relay is the galvanic separation of the phases at the connection.
In einer alternativen Ausführungsform weist die Elektromaschine eine Polpaarzahl größer 1 auf, wobei die Induktivität der Polpaare einer Phase parallel geschaltet sind, wobei mindestens einer Induktivität Schaltelemente zugeordnet sind, wobei das Steuergerät derart ausgebildet ist, die Schaltelemente derart anzusteuern, dass im Traktionsbetrieb die Induktivitäten parallel geschaltet sind und der Stromfluss durch die Induktivitäten gleichsinnig ist und im Ladebetrieb die Induktivitäten parallel geschaltet sind und der Stromfluss durch die mindestens eine Induktivität mit den Schaltelementen gegensinnig zu dem Stromfluss mit den Induktivitäten ohne Schaltelemente ist. Diese Ausführungsform kann bei allen zuvor beschriebenen Ausführungsformen zur Anwendung kommen, wobei sich dabei die erzeugten Motormomente im Ladebetrieb reduzieren bzw. bei Symmetrie sogar aufheben, sodass die Motormomente nicht mehr (z.B. durch eine Parkbremse) abgestützt werden müssen.In an alternative embodiment, the electric machine has a number of pole pairs greater than 1, the inductance of the pole pairs of one phase being connected in parallel, with switching elements being assigned to at least one inductance, the control device being designed to control the switching elements in such a way that the inductances are parallel in traction mode are connected and the current flow through the inductances is in the same direction and in the charging mode the inductances are connected in parallel and the current flow through the at least one inductance with the switching elements is in the opposite direction to the current flow with the inductances without switching elements. This embodiment can be used in all of the embodiments described above, whereby the engine torques generated in the charging operation are reduced or even cancel out in the case of symmetry, so that the engine torques no longer have to be supported (e.g. by a parking brake).
Die Erfindung wird nachfolgend anhand bevorzugter Ausführungsformen näher erläutert. Die Figuren zeigen:
-
1 eine Teildarstellung eines Traktionsnetzes im Ladebetrieb in einer ersten Ausführungsform, -
2 eine Teildarstellung eines Traktionsnetzes im Ladebetrieb in einer zweiten Ausführungsform, -
3 eine Teildarstellung eines Traktionsnetzes in einer dritten Ausführungsform, -
4 eine schematische Darstellung einer Verschaltung der Induktivitäten einer mehrpoligen Elektromaschine, -
5 eine schematische Darstellung eines Traktionsnetzes (Stand der Technik), -
6 eine schematische Darstellung eines Hochsetztellers (Stand der Technik), -
7 eine schematische Darstellung einer Verschaltung der Induktivitäten einer mehrpoligen Elektromaschine in einer ersten Ausführungsform (Stand der Technik) und -
8 eine schematische Darstellung einer Verschaltung der Induktivitäten einer mehrpoligen Elektromaschine in einer zweiten Ausführungsform (Stand der Technik).
-
1 a partial representation of a traction network in charging mode in a first embodiment, -
2 a partial representation of a traction network in charging mode in a second embodiment, -
3 a partial representation of a traction network in a third embodiment, -
4th a schematic representation of an interconnection of the inductances of a multi-pole electric machine, -
5 a schematic representation of a traction network (state of the art), -
6th a schematic representation of a raised plate (state of the art), -
7th a schematic representation of an interconnection of the inductances of a multi-pole electric machine in a first embodiment (prior art) and -
8th a schematic representation of an interconnection of the inductances of a multi-pole electric machine in a second embodiment (prior art).
Bevor die verschiedenen Ausführungsformen der Erfindung erläutert werden, soll zunächst anhand der
Im Ladebetrieb durch die externe Gleichspannungsquelle kann nun das Steuergerät
In der
In der
Erfindungsgemäß fließt nun der Strom in einer Phase gegensinnig durch die zugeordnete Induktivität im Vergleich zu den beiden anderen Phasen. Hierzu sind der dritten Induktivität
In der
Eine solche Ausführungsform ist in
Bevor nun eine weitere Ausführungsform näher erläutert werden soll, soll zunächst eine Verschaltung einer 4-poligen Elektromaschine
Dies kann nun erfindungsgemäß ausgenutzt werden, indem durch geeignete Verschaltung der Strom gegensinnig durch eine zweite Teil-Induktivität im Vergleich zur ersten Teilinduktivität geführt wird, was in
Dabei sind jeder zweiten Teil-Induktivität
Die Ausführungsform gemäß
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017216388.7A DE102017216388B4 (en) | 2017-09-15 | 2017-09-15 | Traction network of a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017216388.7A DE102017216388B4 (en) | 2017-09-15 | 2017-09-15 | Traction network of a motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102017216388A1 DE102017216388A1 (en) | 2019-03-21 |
DE102017216388B4 true DE102017216388B4 (en) | 2020-12-31 |
Family
ID=65526970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017216388.7A Active DE102017216388B4 (en) | 2017-09-15 | 2017-09-15 | Traction network of a motor vehicle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102017216388B4 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150231978A1 (en) * | 2014-02-14 | 2015-08-20 | Jabil Circuit, Inc. | Charge transfer system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012014178A1 (en) | 2012-01-31 | 2013-08-01 | Volkswagen Aktiengesellschaft | Device and method for charging at least one traction battery of an electric vehicle |
-
2017
- 2017-09-15 DE DE102017216388.7A patent/DE102017216388B4/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150231978A1 (en) * | 2014-02-14 | 2015-08-20 | Jabil Circuit, Inc. | Charge transfer system |
Also Published As
Publication number | Publication date |
---|---|
DE102017216388A1 (en) | 2019-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102016218304B3 (en) | Device for voltage conversion, traction network and method for charging a battery | |
DE102018207290B4 (en) | Configurable charging device and method of configuring the charging device | |
DE102017206809A1 (en) | DC-DC converter, vehicle electrical system with a DC-DC converter | |
EP2608397A1 (en) | Modular high frequency converter for drive systems | |
DE102010060508B4 (en) | Voltage converter with a storage choke with a winding and a storage choke with two windings | |
DE102018216236B4 (en) | Charging circuit for an electrical energy store on the vehicle | |
DE102012205725A1 (en) | Power electronics module, method of manufacture | |
WO2020064429A1 (en) | Charging circuit for a vehicle-side electrical energy store | |
EP2928060A1 (en) | Modular frequency converter circuit with submodules having different switching capacities | |
DE102016201283A1 (en) | Inverter, electric drive arrangement with an inverter | |
WO2015128101A1 (en) | Electric drive system | |
DE102018221519B4 (en) | Vehicle-side loading device | |
DE102017216468A1 (en) | Charging an electrical energy storage of a motor vehicle | |
DE102017216386B4 (en) | Traction network of a motor vehicle | |
DE102017216388B4 (en) | Traction network of a motor vehicle | |
DE102016207288A1 (en) | Electric machine with two connected inverters | |
DE102015105889A1 (en) | Switching module and converter with at least one switching module | |
WO2013092043A2 (en) | Power converter circuit | |
DE102017212844A1 (en) | Bidirectional inverter loader | |
DE102006039792A1 (en) | Multi-system traction converter | |
WO2013092039A1 (en) | Power converter circuit | |
WO2021174279A1 (en) | Machine converter and method for operating a machine converter | |
EP3571758B1 (en) | Modular inverter | |
DE19742429C1 (en) | Circuit arrangement e.g. for supplying electrical traction motor in multi-stage vehicle traction devices | |
CH698725B1 (en) | Device for three-phase drive system of hybrid motor vehicle, has star-point of stator phase of polyphase machine taken to input face first end of HF-isolated circuit part |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R082 | Change of representative |
Representative=s name: PATENTANWAELTE BRESSEL UND PARTNER MBB, DE |
|
R163 | Identified publications notified | ||
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: B60L0011180000 Ipc: B60L0050600000 |
|
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R082 | Change of representative |