CN104943536A - Electric drive unit especially for hybrid electric vehicle - Google Patents

Electric drive unit especially for hybrid electric vehicle Download PDF

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Publication number
CN104943536A
CN104943536A CN201510142428.4A CN201510142428A CN104943536A CN 104943536 A CN104943536 A CN 104943536A CN 201510142428 A CN201510142428 A CN 201510142428A CN 104943536 A CN104943536 A CN 104943536A
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CN
China
Prior art keywords
electric drive
drive unit
disconnect
type clutch
electrical motor
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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.)
Pending
Application number
CN201510142428.4A
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Chinese (zh)
Inventor
迈克尔·基施纳
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Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of CN104943536A publication Critical patent/CN104943536A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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
    • 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
    • B60K6/40—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 assembly or relative disposition of components
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
    • 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
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • 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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

An electric drive unit especially for a hybrid electric vehicle includes a motor (4). The motor (4) includes a stator (6) and a rotor (8). Moreover, the electric drive unit has a disconnect type clutch (10). The disconnect type clutch (10) is used for connecting and disconnecting force transmission between the motor (4) of the electric drive unit and a drive driven device (24). The disconnect type clutch (10) is arranged inside the rotor (8) of the motor (4).

Description

Especially for the electric drive unit of hybrid electric vehicle
Technical field
The present invention relates to a kind of electric drive unit being used in particular for hybrid electric vehicle, it has electrical motor and disconnect-type clutch, wherein, electrical motor comprises stators and rotators, and disconnect-type clutch is for setting up and disconnecting the power transmission between the electrical motor and driving hunting gear of electric drive unit.
Background technology
According to common definition, hybrid electric vehicle (English: Hybrid Electric Vehcle, HEV) be following vehicle, it is driven by least one electrical motor and other energy converter, and obtains energy from power material box with in being arranged on vehicle electrical energy storage device.At present by combustion engine and electrical motor and Combined storage battery, but also can use such as fuel cell or double layer capacitor.This hereinafter referred in the drive scheme of combination drive, the characteristic curve of electrical motor utilizes its high moment of torsion in low engine speed range and the characteristic curve complementation of its high moment of torsion in high engine speed range of combustion engine.Compared with the common drive with combustion engine, utilize the power that combination drive can improve efficiency as drive scheme, reduce fossil fuel consumption or increase in low engine speed range.Additionally, a part for braking energy can be reclaimed by effective brake.
In principle, hybrid drive can be configured to hybrid drive that is that connect or parallel connection.In the hybrid drive of series connection, the second energy converter completely no longer has the mechanical connection of the driving axis to reality, and in the hybrid drive of parallel connection, these two driver modules drive driving axis.In addition, compound type combination drive is used.According to motoring condition during travelling, compound type combination drive also often alternatively combined serial with the hybrid drive of parallel connection.The special example of compound type hybrid drive is the hybrid drive of power dividing.At this, a part for the power of combustion engine is mechanically delivered on wheel, and another part is delivered on wheel via the dynamotor fabricate block worked as electric actuator (hybrid drive of series connection).
Parallel connection or power dividing hybrid drive in can realize like this design and determine size, namely combustion engine reaches the final velocity higher than electrical motor.Such as, electrical motor support combustion engine until 100km/h speed and now arrive its critical speed.In order to be not limited in final velocity by electrical motor, time when higher speed, according to previous examples higher than 100km/h, electrical motor and transmission system take off coupling, thus also can with higher speeds when electrical motor is static subsequently.
In order to make electrical motor and transmission system take off coupling, usually use disconnect-type clutch, it such as can be designed to gear clutch, dental clutch or disk clutch.To the manipulation of disconnect-type clutch can electricity ground, mechanically, hydraulically or electromagnetic ground realize.
Summary of the invention
The object of the invention is to, the electric drive unit as follows described in design beginning, only needs little structural volume to make it.
This object is realized by the electric drive unit with feature according to claim 1.According to the content that the favourable design plan of electromagnetic drive unit of the present invention is dependent claims 2 to 16.According to the present invention, electric drive unit comprises electrical motor and disconnect-type clutch, and wherein, electrical motor comprises stators and rotators, and disconnect-type clutch is for setting up and disconnecting the power transmission between the electrical motor and driving hunting gear of electric drive unit.In addition, disconnect-type clutch is arranged in the inside of the rotor of electrical motor.
Based on to the large quantity research of different electric drive units described in beginning, confirm unexpectedly, when disconnect-type clutch is arranged in the inside of the rotor of electrical motor, also can also meet to the machinery of electric drive unit and requirement on calorifics.
Owing to arranging in the rotor, for disconnect-type clutch, no longer need exclusive housing, and obtain the special joint space-efficient of electric drive unit and same stable structure, in addition, this structure can more lightly be implemented compared with the electric drive unit of routine.This is particularly advantageous being applied in vehicle, when being particularly applied in fuel oil electricity hybrid vehicle.
Disconnect-type clutch preferably includes circular gearshift sleeve, it can axially movably support between the first position and the second position, for foundation and breakout force transmission, wherein, gearshift sleeve is set up power transmission and is interrupted opening force transmission at the second axial location in the first axial location.This design plan of disconnect-type clutch achieves, and employs the structure space existed in rotor when only insignificantly expanding trochiterian scantling length.
Gearshift sleeve preferably has interior teeth portion, and it is designed for outer toothed portion that is that be engaged to the first ring gear or the second ring gear, and wherein, the first ring gear is connected with electrical motor, and the second ring gear is connected with driving hunting gear.In disconnect-type clutch, use the gear be in engagement to make it possible to transmit high moment of torsion.
Disconnect-type clutch is particularly advantageously designed to energy hydraulic control.Therefore, the disconnect-type clutch in electric drive unit can run with being especially not easily disturbed, because can construct disconnect-type clutch without electronic component.In addition, utilize hydraulic efficiency gear can realize high application force energy-conservationly.Therefore, it is possible to realize rapidly with failure-free clutch process.
Disconnect-type clutch is preferably connected with hydraulic channel, and wherein, for this reason required hydraulic pressure can obtain from the lubricant system originally for electric drive unit setting via hydraulic channel.Therefore, by synergy, the component in disconnect-type clutch is reduced.
In this design plan, be only a small amount of for manipulating the amount of energy of disconnect-type clutch.Therefore, it is possible to make the hydraulic working pressure in hydraulic channel be between (only) 2bar and 4bar.
Accompanying drawing explanation
In conjunction with the explanation to embodiment that following connection with figures elaborates, make above-mentioned characteristic of the present invention, feature and advantage and realize these mode and method clearer understandable.Illustrate with schematic diagram at this:
Fig. 1 show in section the electric drive unit with the disconnect-type clutch being arranged in internal rotor, and
Fig. 2 shows the details for being installed to the driving device diff disconnect-type clutch assembly in the rotor of electric drive unit with exploded drawings.
Detailed description of the invention
Be with the feature of the electric drive unit shown in generalized section in Fig. 1, all main parts are arranged in unique housing 2.At this, belonging to main parts should have electrical motor 4 and disconnect-type clutch 10, and this electrical motor has its stator 6 and rotor 8 thereof.The miscellaneous part of electrical motor 4, such as electrical interface, other required electronic units, cooling mechanism, enclosure interior can be arranged in equally for the temperature sensor and detector etc. detecting running state.But these are not shown at this for simple and clear reason.
In addition, driving device 12 economical space saving can be arranged in the inside of rotor 8, and this driving device is coupled to rotor place in the end of rotor 8.Driving device 12 such as can be designed to single-stage or multistage planetary wheel.According to Fig. 1, driving device 12 is connected with rotor 8 at the right part place of rotor 8.Therefore, the moment of torsion applied by rotor 8 is transmitted in driving device 12 in this end.
In addition according to Fig. 1, diff 14 can be arranged relative to driving device 12 in the axial direction in the inside of rotor 8 with staggering.Diff 14 is connected with driving device 12 via disconnect-type clutch 10.
Disconnect-type clutch 10 comprises circular gearshift sleeve 16, and this gearshift sleeve can axially movably support between the first position and the second position, for the power transmission of setting up and between put out of gear 12 and diff 14.Moving axially of sleeve 16 of gearshift realizes via range piston 18, and range piston is connected with hydraulic efficiency pressure system via hydraulic channel 20 on the one hand, and is effectively connected with spring lamination 22 on the other hand.
Power transmission is set up in the primary importance of gearshift sleeve 16.Opening force transmission is interrupted in the second place of gearshift sleeve 16.Realize that gearshift sleeve 16 axially to move to its second place from its primary importance, i.e. de-coupling by forming hydraulic pressure.At this, range piston 18 and hydraulic channel 20 so determine size, namely from 2bar until the spring force ground that the hydraulic working pressure of 4bar enough makes gearshift sleeve 16 resist spring lamination 22 reliably moves to the second place.Hydraulic working pressure can such as be in about 3bar.If hydraulic pressure reduces again, so gearshift sleeve 16 reliably moves back in its primary importance by the spring force of spring lamination 22, is that is again coupled.These coupled modes are called as in English " normal closedown (normally closed) ".That is, disconnect-type clutch 10 is closed in basic status.
Structure and other the function detail of disconnect-type clutch 10 is also understood below in detail according to Fig. 2.
In addition, diff 14 is connected with two driven shafts 24, and these driven shafts stretch out at opposite end face 26 place of housing 2.These two driven shafts 24 form the driving hunting gear of electric drive unit.Driven shaft 24, spatially the overlapping with the rotation axis of rotor 8 and at least some rotation axis of driving device 12 and form the main rotating shaft line 28 of electric drive unit of diff 14.
Fig. 2 shows the details of driving device diff disconnect-type clutch assembly with exploded drawings, and how it can be arranged in the rotor 8 of electric drive unit.Driving device diff disconnect-type clutch assembly (Getriebe-Differential-Trennkupplungs-Baugruppe) can referred to as GDT assembly below.
Mouthpiece 30 has inside face and outside face, and these surface design are rotational symmetric.In order to make disconnect-type clutch 10 torsionally be connected with housing 2, mouthpiece 30 is furnished with the Connection Element correspondingly constructed, and this Connection Element is connected with the first end 32 of mouthpiece 30.This connection such as can realize on form fit ground.At this, Connection Element does not illustrate further itself, and it can construct with different types.The other outer end of mouthpiece 30 has the piston guide device 34 of column, and it abuts against mouthpiece 30 place by the end face 36 of annular arrangement.Hydraulic channel 20 imports in end face 36.The end face 36 of annular arrangement continues extend and form supporting member 38 on the direction of first end 32 on the outside face of mouthpiece 30 cylindrical shell shape.Supporting member 38 supports the shell 40 of tubulose in confined state, and this shell is outwards closed GDT assembly.Shell 40 then abut in the axial direction be looped around mouthpiece 30 place around stopper section 42 place.The assembling process of mouthpiece and shell should 43 illustrate by a dotted line.
Range piston 18 can axially movably be arranged on piston guide device 34 in confined state, and wherein, range piston 18 has sealing 44 with outside within it respectively.Range piston 18 utilizes sealing 44 to be bearing in hydraulic annular chamber hermetically, and this hydraulic annular chamber is defined by the inside face of piston guide device 34, end face 36, shell 40 and movable range piston 18.
In addition, range piston 18 comprises change speed fork shifter fork (Gabel) 46, and for the reason of easy installation, this change speed fork shifter fork only can be designed to annulus section, in this case semicircular ring section.
Change speed fork shifter fork 46 be engaged in confined state the outer surface of gearshift sleeve 16 around groove 48 in.Via change speed fork shifter fork 46, the axial motion being used for decoupling of range piston 18 is transferred to gearshift sleeve 16.
Reset force for being coupled is applied by spring lamination 22, this spring lamination be stretched in gearshift sleeve 16 on around support protrusion 50 and driving device 12 drive disk assembly 54 place supporting walls between.
Gearshift sleeve 16 has interior teeth portion 56, in the position of this interior teeth portion not only in the position be coupled but also in decoupling in confined state be arranged on drive disk assembly 54 place outer toothed portion 59 form fit engage.
The ring gear 60 with outer toothed portion 59 is welded regularly on the fitting surface 62 of diff 14 in confined state.Ring gear 60 determines size in the axial direction as follows, and the interior teeth portion 56 of sleeve 16 of namely shifting gears only engages with the outer toothed portion 59 of ring gear 60 in coupling position.In order to simplify coupling or handoff procedure, ring gear 60 has the teeth portion of sharpening at its side place towards gearshift sleeve 16.
Diff 14 to be bearing on the one hand in mouthpiece 30 via bearing (not shown in fig. 2) and to be bearing in drive disk assembly 54 on the other hand.
Again study Fig. 1 below.Utilize the control that electric signal 66 realizes disconnect-type clutch 10.
Electric signal 66 hydraulic control valve 68, this hydraulic valve is connected with lubricant pressure pump 70 in input side.Lubricant pressure pump 70 is component parts of the lubricant supply device set by driving device 12.Replace a hydraulic valve 68, electric signal 66 also can control multiple hydraulic valve 68.Utilize these hydraulic valves 68, correspondingly produce via connected hydraulic channel 20 in hydraulic annular chamber or reduce for the necessary hydraulic pressure of manipulation disconnect-type clutch 10.
Due to the stable and compact design of electric drive unit according to the present invention, this electric drive unit parallel connection or power dividing hybrid drive in be particularly advantageous.At this, combustion engine and electrical motor are typically used as driver module.At this, design plan and determine that size can be carried out as follows, namely utilizes combustion engine to reach and utilizes vehicle final velocity higher compared with electrical motor.By using according to disconnect-type clutch of the present invention, electrical motor is separated with transmission system after reaching its critical speed.Then can travel with the higher final velocity of combustion engine when electrical motor is static.
Therefore, generally speaking, the present invention relates to a kind of electric drive unit, electric drive unit especially for hybrid electric vehicle, it has electrical motor 4, and wherein, electrical motor 4 comprises stator 6 and rotor 8.In addition, electric drive unit has disconnect-type clutch 10, and wherein, disconnect-type clutch 10 is for setting up and disconnecting the power transmission between the electrical motor 4 and driving hunting gear 24 of electric drive unit.Disconnect-type clutch 10 is arranged in the inside of the rotor 8 of electrical motor 4, and hydraulically utilize electric drive unit, particularly the lubrication pressure of driving device 12 manipulate.
Although set forth in detail in detail by preferred embodiment and describe the present invention, the present invention is not limited to disclosed example, and other variant can be derived by professional, and this does not depart from protection scope of the present invention.

Claims (16)

1. one kind is used in particular for the electric drive unit of hybrid electric vehicle, described electric drive unit has electrical motor (4) and disconnect-type clutch (10), wherein, described electrical motor (4) comprises stator (6) and rotor (8), described disconnect-type clutch (10) is for setting up and disconnecting the power transmission between the described electrical motor (4) and driving hunting gear (24) of described electric drive unit, it is characterized in that, described disconnect-type clutch (10) is arranged in the inside of the described rotor (8) of described electrical motor (4).
2. electric drive unit according to claim 1, it is characterized in that, described disconnect-type clutch (10) comprises circular gearshift sleeve (16), described gearshift sleeve can axially movably support between the first position and the second position, for foundation and breakout force transmission, wherein, described gearshift sleeve (16) is set up described power transmission and is broken described power transmission at the second axial location in the first axial location.
3. electric drive unit according to claim 2, it is characterized in that, described gearshift sleeve (16) has interior teeth portion (56), described interior teeth portion is designed for that be engaged to the first ring gear (58) with outer toothed portion (59) that is the second ring gear (60), and described first ring gear (58) is connected with described electrical motor (4), and described second ring gear (60) is connected with described driving hunting gear (24).
4. the electric drive unit according to Claims 2 or 3, it is characterized in that, described gearshift sleeve (16) is engaged with described first ring gear (58) in described primary importance and in the described second place, and described gearshift sleeve (16) engages with described second ring gear (60) and do not engage with described second ring gear in the second position in described primary importance.
5. the electric drive unit according to any one of claim 2 to 4, it is characterized in that, described gearshift sleeve (16) has the groove (48) of annular in the lateral surface of described gearshift sleeve, and the change speed fork shifter fork (46) of range piston (18) is engaged in described groove (48).
6. electric drive unit according to claim 5, it is characterized in that, described range piston (18) is designed to circular, and described change speed fork shifter fork (46) is designed to annulus section shape in the end of described range piston (28).
7. the electric drive unit according to any one of claim 2 to 6, it is characterized in that, spring assembly (22) is arranged between contact pin (48) and electrical motor hunting gear, the outside circumference of described contact pin at described gearshift sleeve (16) place around described gearshift sleeve.
8. according to electric drive unit in any one of the preceding claims wherein, it is characterized in that, described disconnect-type clutch (10) is designed to can hydraulic control.
9. according to electric drive unit in any one of the preceding claims wherein, it is characterized in that, described disconnect-type clutch (10) is connected with hydraulic channel (20).
10. electric drive unit according to claim 9, is characterized in that, the hydraulic working pressure in described hydraulic channel (20) is between 2bar and 4bar.
11., according to electric drive unit in any one of the preceding claims wherein, is characterized in that, are furnished with driving device (12) in the power bang path between described rotor (8) and described driving hunting gear (24).
12. electric drive units according to claim 11, is characterized in that, described driving device (12) is arranged in the inside of the described rotor (8) of described electrical motor (4).
13. electric drive units according to claim 11 or 12, it is characterized in that, described driving device (12) comprises lubricant supply device.
14. electric drive units according to claim 13, it is characterized in that, described lubricant supply device comprises lubricant pressure pump (70), and the pressure side of described lubricant pressure pump is connected with the described hydraulic channel (20) of described disconnect-type clutch (10).
15. electric drive units according to any one of claim 1 to 12, is characterized in that, be furnished with diff (14) in the power bang path between described rotor and described driving hunting gear (24).
16. electric drive units according to any one of claim 1 to 15, it is characterized in that, described diff (14) is arranged between described disconnect-type clutch (10) and described driving hunting gear (24), wherein, described diff (14) is arranged in the inside of the described rotor (8) of described electrical motor (4) equally.
CN201510142428.4A 2014-03-28 2015-03-27 Electric drive unit especially for hybrid electric vehicle Pending CN104943536A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014205886.4 2014-03-28
DE102014205886.4A DE102014205886A1 (en) 2014-03-28 2014-03-28 Electric drive unit, in particular for a hybrid electric motor vehicle

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CN104943536A true CN104943536A (en) 2015-09-30

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DE (1) DE102014205886A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19835575A1 (en) * 1998-08-06 2000-03-02 Mannesmann Sachs Ag Parallel hybrid drive for a motor vehicle with a clutch integrated in the electrical machine and associated electric motor assembly
DE102011087290A1 (en) * 2011-11-29 2013-05-29 Siemens Aktiengesellschaft Drive device with an electric drive machine

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Application publication date: 20150930