DE102018103243A1 - Drive unit with separable, two freewheel units having coupling device - Google Patents
Drive unit with separable, two freewheel units having coupling device Download PDFInfo
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- DE102018103243A1 DE102018103243A1 DE102018103243.9A DE102018103243A DE102018103243A1 DE 102018103243 A1 DE102018103243 A1 DE 102018103243A1 DE 102018103243 A DE102018103243 A DE 102018103243A DE 102018103243 A1 DE102018103243 A1 DE 102018103243A1
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- 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
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- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/26—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, of type of freewheel device
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- 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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/383—One-way clutches or freewheel devices
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- 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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
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- 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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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- 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
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
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- 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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
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- 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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/42—Clutches or brakes
- B60Y2400/427—One-way clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/70—Gearings
- B60Y2400/73—Planetary gearings
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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
- Y02T10/62—Hybrid vehicles
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Abstract
Die Erfindung betrifft eine Antriebseinheit (1) für einen Kraftfahrzeugantriebsstrang, mit einer elektrischen Maschine (2) sowie einer Koppeleinrichtung (3), wobei die Koppeleinrichtung (3) zwischen einem ersten Triebwellenabschnitt (4) und einem zweiten Triebwellenabschnitt (5) derart eingesetzt ist, dass die beiden Triebwellenabschnitte (4, 5) in zumindest einem ersten Zustand der Koppeleinrichtung (3) drehfest miteinander verbunden und in zumindest einem zweiten Zustand der Koppeleinrichtung (3) frei relativ zueinander verdrehbar sind, wobei die Koppeleinrichtung (3) zwei in Parallelschaltung zueinander angeordnete Freilaufeinheiten (6, 7) aufweist, wobei zumindest eine erste Freilaufeinheit (6) als eine schaltbare Freilaufeinheit ausgebildet ist. Zudem betrifft die Erfindung eine elektrische Antriebsachse für ein Kraftfahrzeug, mit dieser Antriebseinheit (1). The invention relates to a drive unit (1) for a motor vehicle drive train, comprising an electric machine (2) and a coupling device (3), wherein the coupling device (3) is inserted between a first drive shaft section (4) and a second drive shaft section (5). in that the two drive shaft sections (4, 5) are rotatably connected to one another in at least one first state of the coupling device (3) and freely rotatable relative to one another in at least one second state of the coupling device (3), the coupling device (3) being arranged in parallel with one another Freewheel units (6, 7), wherein at least one first freewheel unit (6) is designed as a switchable freewheeling unit. In addition, the invention relates to an electric drive axle for a motor vehicle, with this drive unit (1).
Description
Die Erfindung betrifft eine Antriebseinheit für einen (rein elektrisch angetriebenen oder hybriden) Kraftfahrzeugantriebsstrang / Antriebsstrang eines Kraftfahrzeuges, wie ein Pkw, Lkw, Bus oder sonstiges Nutzfahrzeug, mit einer elektrischen Maschine sowie einer Koppeleinrichtung, wobei die Koppeleinrichtung zwischen einem ersten Triebwellenabschnitt und einem zweiten Triebwellenabschnitt derart eingesetzt ist, dass die beiden Triebwellenabschnitte in zumindest einem ersten Zustand der Koppeleinrichtung drehfest miteinander verbunden und in zumindest einem zweiten Zustand der Koppeleinrichtung frei relativ zueinander verdrehbar sind.The invention relates to a drive unit for a (purely electrically driven or hybrid) motor vehicle drive train / drive train of a motor vehicle, such as a car, truck, bus or other commercial vehicle, with an electric machine and a coupling device, wherein the coupling device between a first drive shaft section and a second drive shaft section is used such that the two drive shaft sections in at least a first state of the coupling device rotatably connected to each other and in at least a second state of the coupling device are freely rotatable relative to each other.
Gattungsgemäßer Stand der Technik ist bspw. aus der
Bei den aus dem Stand der Technik bekannten Ausführungen, mit denen sowohl E-Achsen / rein elektrisch angetriebene Antriebseinheiten, als auch hybride Antriebseinheiten, die sowohl elektrische Motoren als auch Verbrennungsmotoren aufweisen, bekannt sind, hat es sich jedoch als Nachteil herausgestellt, dass die eingesetzten Koppeleinrichtungen (auch als Kupplungseinrichtungen bezeichnet) oft relativ großbauend ausgeführt sind. Des Weiteren ist der Aufwand zur Betätigung dieser bekannten Koppeleinrichtungen relativ aufwändig, da hydraulische und/oder elektrische Systeme vorgesehen sind.In the known from the prior art designs, with which both E-axes / purely electrically driven drive units, as well as hybrid drive units, which have both electric motors and internal combustion engines are known, it has been found to be a disadvantage that the used Coupling devices (also referred to as coupling devices) are often designed relatively large construction. Furthermore, the effort to operate these known coupling devices is relatively complicated, since hydraulic and / or electrical systems are provided.
Es ist daher Aufgabe der vorliegenden Erfindung, die aus dem Stand der Technik bekannten Nachteile zu beheben und insbesondere eine kompakte Antriebseinheit für einen elektrischen oder hybriden Antriebsstranges zur Verfügung zu stellen, die hinsichtlich ihres Aufbaus weiter vereinfacht ist.It is therefore an object of the present invention to overcome the known from the prior art disadvantages and in particular to provide a compact drive unit for an electric or hybrid drive train available, which is further simplified in terms of their structure.
Dies wird erfindungsgemäß dadurch gelöst, dass die Koppeleinrichtung zwei in Parallelschaltung zueinander angeordnete Freilaufeinheiten aufweist, wobei zumindest eine erste Freilaufeinheit als eine (um-)schaltbare Freilaufeinheit (d.h. als eine mittels eines von außen einwirkenden Aktuators schaltbare Freilaufeinheit) ausgebildet ist.This is inventively achieved in that the coupling device comprises two freewheel units arranged in parallel to one another, wherein at least one first freewheel unit is designed as a (re-) switchable freewheel unit (that is, as a freewheel unit switchable by means of an externally acting actuator).
Dadurch wird eine die unterschiedlichen Betriebsmodi des Antriebsstranges, bspw. in Form einer Vorwärtsfahrt, einer Rückwärtsfahrt, einer Rekuperation, eines Motorstarts, etc., realisierende Koppeleinrichtung zur Verfügung gestellt, die einen besonders geringen Bauraum benötigt. Auch wird die Betätigung der Koppeleinrichtung deutlich vereinfacht, da zum Umschalten der Betriebsmodi lediglich die erste Freilaufeinheit zu betätigen ist.As a result, the different operating modes of the drive train, for example in the form of a forward drive, a reverse drive, a recuperation, an engine start, etc., realizing coupling device is provided which requires a particularly small space. Also, the operation of the coupling device is significantly simplified because only the first freewheel unit is to operate to switch the operating modes.
Weitere vorteilhafte Ausführungsformen sind mit den Unteransprüchen beansprucht und nachfolgend näher erläutert.Further advantageous embodiments are claimed with the subclaims and explained in more detail below.
Demnach ist es im Weiteren vorteilhaft, wenn die erste Freilaufeinheit zwischen einem ersten Betriebsmodus, in dem sie sowohl in einer ersten Relativdrehrichtung zweier Drehbestandteile als auch in einer, zu der ersten Relativdrehrichtung entgegengesetzten, zweiten Relativdrehrichtung der Drehbestandteile entsperrt ist (d.h., dass die Drehbestandteile frei verdrehbar / rotatorisch voneinander entkoppelt sind) und einem zweiten Betriebsmodus, in dem sie in der ersten Relativdrehrichtung der Drehbestandteile gesperrt ist / sperrt (d.h., dass die Drehbestandteile drehfest gekoppelt sind) und in der zweiten Relativdrehrichtung der Drehbestandteile entsperrt ist, umschaltbar ist. Dadurch lassen sich die unterschiedlichen Betriebsmodi der Antriebseinheit einfach umschalten und die Antriebseinheit ist besonders flexibel einsetzbar.Accordingly, it is furthermore advantageous if the first freewheel unit is unlocked between a first operating mode in which it is unlocked both in a first relative rotational direction of two rotary components and in a second relative rotational direction of the rotary components opposite to the first relative rotational direction (ie, that the rotary components are free rotatable / rotationally decoupled from each other) and a second operating mode in which it is locked in the first relative direction of rotation of the rotary components / locks (ie, that the rotary components are rotatably coupled) and is unlocked in the second direction of relative rotation of the rotary components, can be switched. As a result, the different operating modes of the drive unit can be easily switched over and the drive unit can be used particularly flexibly.
Des Weiteren ist es von Vorteil, wenn ein (vorzugsweise elektrischer, hydraulischer oder elektrohydraulischer) Aktuator vorhanden ist, der die erste Freilaufeinheit zwischen ihrem ersten Betriebsmodus und ihrem zweiten Betriebsmodus umschaltet. In einer besonders bevorzugten Ausführung ist der Aktuator ein Elektromotor von 12 V oder kleiner.Furthermore, it is advantageous if a (preferably electric, hydraulic or electro-hydraulic) actuator is present, which switches the first freewheel unit between its first operating mode and its second operating mode. In a particularly preferred embodiment, the actuator is an electric motor of 12 V or less.
Eine, in Parallelschaltung zu der ersten Freilaufeinheit angeordnete, zweite Freilaufeinheit ist zweckmäßigerweise als selbstbetätigte / selbstbetätigende Freilaufeinheit (d.h. als eine Freilaufeinheit mit fester Zuordnung der Relativdrehrichtung zwischen ihren beiden Drehbestandteilen zu ihrem entsperrten oder gesperrten Zustand) ausgebildet. Somit fällt eine separate Betätigungseinrichtung zum Betätigen der zweiten Freilaufeinheit vollständig weg. Der Aufbau der Koppeleinrichtung wird nochmals deutlich vereinfacht.A second freewheel unit disposed in parallel with the first freewheel unit is suitably configured as a self-operated freewheeling unit (i.e., a freewheel unit with fixed association of the relative rotational direction between its two rotating components to its unlocked or locked state). Thus, a separate actuator for actuating the second freewheel unit is completely eliminated. The structure of the coupling device is again significantly simplified.
In diesem Zusammenhang ist es weiterhin von Vorteil, wenn die zweite Freilaufeinheit derart auf die erste Freilaufeinheit abgestimmt ist, dass die zweite Freilaufeinheit bei einem Relativverdrehen zweier Drehbestandteile in der ersten Relativdrehrichtung (entspricht bevorzugt der ersten Relativdrehrichtung der ersten Freilaufeinheit) entsperrt ist (d.h., dass die Drehbestandteile frei verdrehbar / rotatorisch voneinander entkoppelt sind).In this context, it is furthermore advantageous if the second freewheel unit is tuned to the first freewheel unit such that the second freewheel unit is unlocked during relative rotation of two rotary components in the first relative rotational direction (corresponding to the first relative rotational direction of the first freewheel unit) the rotating components are freely rotatable / rotationally decoupled from each other).
Somit ist es ebenfalls von Vorteil, wenn die zweite Freilaufeinheit derart auf die erste Freilaufeinheit abgestimmt ist, dass die zweite Freilaufeinheit bei einem Relativverdrehen ihrer Drehbestandteile in der zweiten Relativdrehrichtung (entspricht bevorzugt der zweiten Relativdrehrichtung der ersten Freilaufeinheit) gesperrt ist (d.h., dass die Drehbestandteile drehfest gekoppelt sind).Thus, it is also advantageous if the second freewheel unit is tuned to the first freewheel unit, that the second freewheel unit is locked in a relative rotation of their rotary components in the second direction of relative rotation (preferably corresponds to the second direction of relative rotation of the first freewheel unit) (ie, that the rotational components rotatably coupled).
Des Weiteren ist es zweckmäßig, wenn die Koppeleinrichtung modulartig ausgeführt ist. Die beiden Freilaufeinheiten sind somit gemeinsam modulartig aufgebaut und besonders bevorzugt in einem einzigen Modulgehäuse integriert. Furthermore, it is expedient if the coupling device is designed like a module. The two freewheel units are thus constructed together in a modular manner and particularly preferably integrated in a single module housing.
Auch ist es von Vorteil, wenn ein Triebwellenabschnitt mit einer Kupplungs- und/oder Getriebeeinrichtung (vorzugsweise aufweisend ein Planetengetriebe und/oder ein Differential) weiter verbunden ist. Zweckmäßig ist es, wenn der erste Triebwellenabschnitt drehfest mit einem Rotor der elektrischen Maschine verbunden ist oder drehfest mit einer Abtriebswelle verbunden oder verbindbar ist. Der zweite Triebwellenabschnitt ist weiterhin bevorzugt mit der Kupplungs- und/oder Getriebeeinrichtung weiter verbunden und/oder drehfest mit dem Rotor der elektrischen Maschine verbunden, sofern der erste Triebwellenabschnitt nicht auch drehfest mit dem Rotor der elektrischen Maschine verbunden ist.It is also advantageous if a drive shaft section with a clutch and / or transmission device (preferably comprising a planetary gear and / or a differential) is further connected. It is expedient if the first drive shaft section is non-rotatably connected to a rotor of the electric machine or is connected or connectable to an output shaft in a torque-proof manner. The second drive shaft section is furthermore preferably connected to the clutch and / or transmission device and / or non-rotatably connected to the rotor of the electrical machine, provided that the first drive shaft section is not also connected in a rotationally fixed manner to the rotor of the electric machine.
Ist die Koppeleinrichtung Teil eines Hybridmoduls, ist die Antriebseinheit besonders geschickt in einem hybriden Antriebsstrang eines Kraftfahrzeuges einsetzbar.If the coupling device is part of a hybrid module, the drive unit can be used particularly cleverly in a hybrid drive train of a motor vehicle.
Alternativ ist die erfindungsgemäße Antriebseinheit nach einem der zuvor beschriebenen Ausführungen bevorzugt Bestandteil einer elektrischen Antriebsachse / E-Achse eines Kraftfahrzeuges.Alternatively, the drive unit according to the invention according to one of the embodiments described above is preferably part of an electrical drive axle / E-axis of a motor vehicle.
In anderen Worten ausgedrückt, wird somit erfindungsgemäß eine Trennfunktion unter der Verwendung einer Kombination aus einer konventionellen Einwegkupplung / Freilaufeinrichtung (zweite Freilaufeinrichtung) und einer umschaltbaren Einwegkupplung / Freilaufeinheit (erste Freilaufeinrichtung) für eine E-Achse und ein Hybridmodul zur Verfügung gestellt. Die umschaltbare Einwegkupplung ist zwischen einem Betriebsmodus eines Freilaufs in beiden Drehrichtungen (erste sowie zweite Relativdrehrichtung) und einem Betriebsmodus eines Sperrens in einer dieser beiden Drehrichtungen umschaltbar, wobei die konventionelle Einwegkupplung sich in einem Modus eines Freilaufs befindet.In other words, according to the present invention, there is provided a disconnecting function using a combination of a conventional one-way clutch / sprag (second sprag) and a one-way clutch / overrunning clutch (first sprag) for an E-axis and a hybrid module. The reversible one-way clutch is switchable between a freewheeling operation mode in both rotational directions (first and second relative rotational directions) and an operation mode of disabling in one of these two rotational directions, the conventional one-way clutch being in a freewheeling mode.
Die Erfindung wird nun nachfolgend anhand von Figuren näher erläutert, in welchem Zusammenhang auch verschiedene Ausführungsbeispiele dargestellt sind.The invention will now be explained in more detail with reference to figures, in which context also different embodiments are shown.
Es zeigen:
-
1 eine schematische Darstellung einer teilweise im Schnitt veranschaulichten erfindungsgemäßen Antriebseinheit nach einem ersten Ausführungsbeispiel, wobei ein Bereich einer eine elektrische Maschine mit einer Getriebeeinrichtung koppelnden Koppeleinrichtung veranschaulicht ist, -
2 eine detaillierte Längsschnittdarstellung der in1 eingesetzten Getriebeeinrichtung, die weiterhin in einer E-Achse eingesetzt ist, -
3 eine schematische Darstellung der teilweise im Schnitt veranschaulichten Antriebseinheit des ersten Ausführungsbeispiels, ähnlich zu1 , wobei die Getriebeeinrichtung nun vollständig und die Koppeleinrichtung vereinfacht abgebildet sind, -
4 eine schematische Darstellung einer teilweise im Schnitt veranschaulichten erfindungsgemäßen Antriebseinheit nach einem zweiten Ausführungsbeispiel, wobei die Getriebeeinrichtung, im Vergleich zu dem ersten Ausführungsbeispiel, auf andere Weise ausgebildet ist, -
5 eine schematische Darstellung einer teilweise im Schnitt veranschaulichten erfindungsgemäßen Antriebseinheit nach einem dritten Ausführungsbeispiel, wobei die Getriebeeinrichtung, im Vergleich zu dem ersten Ausführungsbeispiel, wiederum auf andere Weise ausgebildet ist, -
6 eine schematische Darstellung einer teilweise im Schnitt veranschaulichten erfindungsgemäßen Antriebseinheit nach einem vierten Ausführungsbeispiel, wobei die Koppeleinrichtung nun zwischen der elektrischen Maschine und einer als Abtriebswelle dienenden Triebwelle eingesetzt ist, -
7 eine perspektivische Darstellung einer in der Koppeleinrichtung nach einem der vorhergehenden Ausführungsbeispiele eingesetzten zweiten (selbstbetätigenden) Freilaufeinheit, -
8 eine perspektivische Darstellung einer in der Koppeleinrichtung nach einem der vorhergehenden Ausführungsbeispiele eingesetzten ersten (umschaltbaren) Freilaufeinheit, -
9 eine perspektivische Explosionsdarstellung der ersten Freilaufeinheit nach8 , -
10 eine perspektivische Darstellung der ersten Freilaufeinheit nach den8 und9 in einem zusammengebauten Zustand bei entferntem Betätigungselement, sodass ein Aufbau der ersten Freilaufeinheit gut erkennbar ist, -
11 eine perspektivische Ansicht der in Querrichtung geschnittenen ersten Freilaufeinheit nach10 , -
12 eine perspektivische Ansicht der in Längsrichtung geschnittenen ersten Freilaufeinheit nach10 , -
13 eine Vorderansicht einer ersten Freilaufeinheit, wie sie in einer Antriebseinheit nach einem fünften Ausführungsbeispiel eingesetzt ist, wobei die erste Freilaufeinheit als hydraulisch betätigte Freilaufeinheit ausgebildet ist, -
14 eine Rückansicht der in13 dargestellten ersten Freilaufeinheit, wobei die erste Freilaufeinheit, wie bereits in13 , in einem ersten Betriebsmodus geschaltet ist, in dem die erste Freilaufeinheit in beiden Relativdrehrichtungen zweier Drehbestandteile entsperrt ist, -
15 eine Vorderansicht der ersten Freilaufeinheit nach den13 und14 in einem zweiten Betriebsmodus, in dem die erste Freilaufeinheit in einer Relativdrehrichtung ihrer Drehbestandteile gesperrt ist, -
16 eine Rückansicht der ersten Freilaufeinheit nach15 , -
17 ein Diagramm, das unterschiedliche Modi der Koppeleinrichtung des ersten Ausführungsbeispiels veranschaulicht, in denen die jeweilige Freilaufeinheit auf spezielle Weise in den jeweiligen gesperrten oder entsperrten Zustand geschaltet ist, und -
18 ein Diagramm, das unterschiedliche Modi der Koppeleinrichtung des vierten Ausführungsbeispiels veranschaulicht, in denen die jeweilige Freilaufeinheit auf spezielle Weise in den jeweiligen gesperrten oder entsperrten Zustand geschaltet ist.
-
1 FIG. 2 a schematic representation of a drive unit according to the invention, shown partly in section, according to a first exemplary embodiment, wherein a region of a coupling device coupling an electric machine to a transmission device is illustrated, FIG. -
2 a detailed longitudinal section of the in1 used transmission device, which is further used in an E-axis, -
3 a schematic representation of partially in section illustrated drive unit of the first embodiment, similar to1 wherein the transmission device is now completely and the coupling device shown simplified, -
4 FIG. 2 a schematic representation of a drive unit according to the invention, shown partly in section, according to a second exemplary embodiment, wherein the transmission device is designed differently in comparison to the first exemplary embodiment, FIG. -
5 FIG. 2 a schematic representation of a drive unit according to the invention, which is partially illustrated in section, according to a third exemplary embodiment, wherein the transmission device, in contrast to the first exemplary embodiment, is designed in another way, -
6 a schematic representation of a partially sectioned in accordance with the invention drive unit according to a fourth embodiment, wherein the coupling device is now inserted between the electric machine and serving as an output shaft drive shaft, -
7 3 a perspective view of a second (self-actuating) freewheel unit used in the coupling device according to one of the preceding exemplary embodiments, -
8th 3 a perspective view of a first (reversible) freewheel unit used in the coupling device according to one of the preceding exemplary embodiments, -
9 an exploded perspective view of the first freewheel unit8th . -
10 a perspective view of the first freewheel unit after the8th and9 in an assembled state with the actuator removed, so that a structure of the first freewheel unit is easily recognizable, -
11 a perspective view of the cross-cut first freewheel unit after10 . -
12 a perspective view of the cut longitudinally first freewheel unit after10 . -
13 a front view of a first freewheel unit, as it is used in a drive unit according to a fifth embodiment, wherein the first freewheel unit is designed as a hydraulically operated freewheel unit, -
14 a rear view of the in13 illustrated first freewheel unit, wherein the first freewheel unit, as already in13 is switched in a first operating mode, in which the first freewheel unit is unlocked in both relative directions of rotation of two rotary components, -
15 a front view of the first freewheel unit after the13 and14 in a second mode of operation in which the first freewheel unit is locked in a relative direction of rotation of its rotary components, -
16 a rear view of the first freewheel unit after15 . -
17 a diagram illustrating different modes of the coupling device of the first embodiment, in which the respective one-way unit is connected in a special manner in the respective locked or unlocked state, and -
18 a diagram illustrating different modes of the coupling device of the fourth embodiment, in which the respective one-way unit is connected in a specific manner in the respective locked or unlocked state.
Die Figuren sind lediglich schematischer Natur und dienen ausschließlich dem Verständnis der Erfindung. Die gleichen Elemente sind mit denselben Bezugszeichen versehen. Auch sind die unterschiedlichen Ausführungsbeispiele prinzipiell frei miteinander kombinierbar.The figures are merely schematic in nature and are for the sole purpose of understanding the invention. The same elements are provided with the same reference numerals. The different embodiments are in principle freely combined with each other.
In den
Die Antriebseinheit
Der Rotor
Mit dem zweiten Ausführungsbeispiel nach
Zurückkommend auf das erste Ausführungsbeispiel nach
Die Freilaufeinheiten
Die erste Freilaufeinheit
Die zweite Freilaufeinheit
Dadurch ist es prinzipiell möglich die in
In Verbindung mit den
In den
Gemäß den
In Verbindung mit den
Gemäß
In anderen Worten ausgedrückt, ist somit erfindungsgemäß eine Trennfunktion unter der Verwendung einer Kombination aus einer konventionellen Einwegkupplung (zweite Freilaufeinheit
Gemäß einem weiteren (vierten) Ausführungsbeispiel sind auch folgende Modi des Antriebsstranges umsetzbar: Ein Antriebshilfsmodus durch den Elektromotor (elektrische Maschine
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Antriebseinheitdrive unit
- 22
- elektrische Maschineelectric machine
- 33
- Koppeleinrichtungcoupling device
- 44
- erster Triebwellenabschnittfirst drive shaft section
- 55
- zweiter Triebwellenabschnittsecond drive shaft section
- 66
- erste Freilaufeinheitfirst freewheel unit
- 77
- zweite Freilaufeinheitsecond freewheel unit
- 88th
- erster Drehbestandteil der ersten Freilaufeinheitfirst rotary component of the first freewheel unit
- 99
- zweiter Drehbestandteil der ersten Freilaufeinheitsecond rotary component of the first freewheel unit
- 1010
- erster Drehbestandteil der zweiten Freilaufeinheitfirst rotary component of the second freewheel unit
- 1111
- zweiter Drehbestandteil der zweiten Freilaufeinheitsecond rotary component of the second freewheel unit
- 1212
- Abtriebswelleoutput shaft
- 1313
- Getriebeeinrichtungtransmission device
- 1414
- Statorstator
- 1515
- Rotorrotor
- 1616
- Differentialdifferential
- 17a17a
- erste Verbindungswellefirst connecting shaft
- 17b17b
- zweite Verbindungswellesecond connecting shaft
- 18 18
- Sperrkörperblocking body
- 1919
- KäfigCage
- 2020
- Doppelpfeildouble arrow
- 2121
- Rollenelementroller element
- 2222
- Federelementspring element
- 2323
- Druckraumpressure chamber
- 2424
- Ramperamp
- 2525
- Planetengetriebeplanetary gear
- 2626
- Übersetzungsstufetranslation stage
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 102014218556 A1 [0002]DE 102014218556 A1 [0002]
Claims (10)
Priority Applications (1)
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DE102018103243.9A DE102018103243A1 (en) | 2018-02-14 | 2018-02-14 | Drive unit with separable, two freewheel units having coupling device |
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DE102018103243.9A DE102018103243A1 (en) | 2018-02-14 | 2018-02-14 | Drive unit with separable, two freewheel units having coupling device |
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Publication Number | Publication Date |
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DE102018103243A1 true DE102018103243A1 (en) | 2019-08-14 |
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DE102018103243.9A Pending DE102018103243A1 (en) | 2018-02-14 | 2018-02-14 | Drive unit with separable, two freewheel units having coupling device |
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DE (1) | DE102018103243A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023095822A1 (en) * | 2021-11-24 | 2023-06-01 | 株式会社アイシン | Drive device for vehicle |
WO2023135252A1 (en) * | 2022-01-17 | 2023-07-20 | Mercedes-Benz Group AG | Electric drive system for a motor vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014218556A1 (en) | 2014-09-16 | 2015-12-17 | Schaeffler Technologies AG & Co. KG | Vehicle with electric motor and automatic transmission |
-
2018
- 2018-02-14 DE DE102018103243.9A patent/DE102018103243A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014218556A1 (en) | 2014-09-16 | 2015-12-17 | Schaeffler Technologies AG & Co. KG | Vehicle with electric motor and automatic transmission |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023095822A1 (en) * | 2021-11-24 | 2023-06-01 | 株式会社アイシン | Drive device for vehicle |
WO2023135252A1 (en) * | 2022-01-17 | 2023-07-20 | Mercedes-Benz Group AG | Electric drive system for a motor vehicle |
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