CN105966235B - Electric drive axle assembly and the vehicle with the electric drive axle assembly - Google Patents
Electric drive axle assembly and the vehicle with the electric drive axle assembly Download PDFInfo
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- CN105966235B CN105966235B CN201511030700.6A CN201511030700A CN105966235B CN 105966235 B CN105966235 B CN 105966235B CN 201511030700 A CN201511030700 A CN 201511030700A CN 105966235 B CN105966235 B CN 105966235B
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- Prior art keywords
- parking
- gear
- axle
- differential mechanism
- electric drive
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Classifications
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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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/067—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing drum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Retarders (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of electric drive axle assembly and with the electric drive axle assembly vehicle, the electric drive axle assembly includes electric power assembly, the electric power assembly includes power motor, speed changer and differential mechanism, the differential mechanism has differential mechanism input unit and two differential mechanism output sections, and the power motor is connected by the speed changer with the differential mechanism input unit；Axle case assy, the axle case assy includes axle housing component and two semiaxis, described two semiaxis and the differential mechanism are respectively positioned in the axle housing component, and two semiaxis are connected with two differential mechanism output sections respectively, wherein the electric power assembly is arranged on the axle housing component；Central parking module, the central parking module are arranged on the axle housing component and for directly braking the differential mechanism input unit.Electric drive axle assembly according to embodiments of the present invention, it is compact-sized, it is easy to arrange, parking reliability is high.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of electric drive axle assembly and has the electric drive
The vehicle of axle assembly.
Background technology
In correlation technique, EPB is wanted to be arranged on electric drive axle, difficult arrangement be present, and in electric drive axle
When power assembly has multiple gears, it may appear that the problem of hanging shelves failure, security performance is low, room for improvement be present.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention carries
Go out a kind of arrangement reliably and securely high electric drive axle assembly of property.
The present invention also proposes a kind of vehicle with the electric drive axle assembly.
Electric drive axle assembly according to embodiments of the present invention, including：Electric power assembly, the electric power assembly include power
Motor, speed changer and differential mechanism, the differential mechanism have differential mechanism input unit and two differential mechanism output sections, the power motor
It is connected by the speed changer with the differential mechanism input unit；Axle case assy, the axle case assy include axle housing component and two
Semiaxis, described two semiaxis and the differential mechanism are respectively positioned in the axle housing component, two semiaxis respectively with described in two
Differential mechanism output section is connected, wherein the electric power assembly is arranged on the axle housing component；Central parking module, the center
Parking module is arranged on the axle housing component and for directly braking the differential mechanism input unit.
Electric drive axle assembly according to embodiments of the present invention, electric power assembly, central parking module and axle case assy integrate
Together, compact-sized, small volume, it is easy to arrange, and by the direct brake differential device input unit of central parking module, can avoids
The risk for the parking failure being likely to occur during shift of transmission, so that electric drive axle assembly is more safe and reliable.
According to one embodiment of present invention, the central parking module and the electric power assembly are separately mounted to described
The front and rear sides of axle housing component.
According to one embodiment of present invention, the central parking module includes parking casing and EPB, described
Parking casing is arranged on the axle housing component, and the EPB is fixed on the parking casing, the parking braking
Device is used to directly brake the differential mechanism input unit.
According to one embodiment of present invention, the differential mechanism input unit includes differential mechanism input gear；The center is stayed
Car module also includes：Parking axle and the parking gear being fixed on the parking axle, the parking gear and the differential mechanism are defeated
Enter gear engagement, the parking axle is connected with the EPB.
According to one embodiment of present invention, the parking axle is supported on the parking casing by parking bearing.
According to one embodiment of present invention, the parking axle is integrally formed as park tooth wheel shaft with the parking gear.
According to one embodiment of present invention, the EPB includes brake drum and brake structure, the brake drum
It is connected with the parking axle, the brake structure is selectively engageable the brake drum to brake the brake drum.
According to one embodiment of present invention, the central parking module also includes connection casing, the EPB
Connected with the parking casing by the connecting box body phase.
According to one embodiment of present invention, the central parking module also includes adpting flange, and the adpting flange is consolidated
It is scheduled on the parking axle and in the connecting box body, the brake drum passes through the adpting flange and the parking axle phase
Even.
According to one embodiment of present invention, the speed changer has case of transmission, and the power motor is fixed on institute
State on case of transmission, the case of transmission is fixed on the side of the axle housing component, and the central parking module is arranged on
The opposite side of the axle housing component, the differential mount is on the case of transmission and the parking casing.
According to one embodiment of present invention, the axle housing component includes axle housing and cap, wherein the case of transmission
The side of the axle housing is fixed on, the cap is detachably arranged in the opposite side of the axle housing, and the cap is configured to both ends
Unlimited tubular structure, the parking casing is through the cap and is supported on the cap.
According to one embodiment of present invention, the speed changer includes input shaft, jackshaft and output shaft, the input shaft
It is connected with the motor output shaft of the power motor, input gear is fixed with the input shaft, is fixed with the jackshaft
The idler gear engaged with the input gear, and multiple gear driving gears, the output shaft are fixed with the jackshaft
On be fixed with the output gear engaged with the differential mechanism input gear of the differential mechanism, and be set with output shaft with it is multiple described
Gear driving gear corresponds multiple gear driven gears of engagement.
According to one embodiment of present invention, multiple gear driving gears include a gear driving gear and two gears actively
Gear, multiple gear driven gears include the gear driven gear engaged with described one gear driving gear and kept off with described two
Two gear driven gears of driving gear engagement；The speed changer also includes synchronizer, and the synchronizer is arranged to optionally
One in described one gear driven gear and the two gears driven gear is engaged with the output shaft.
The vehicle of embodiment according to the second aspect of the invention, including the electric drive axle assembly described in first aspect, so as to
With the advantages that compact-sized, arrangement is convenient, and parking safety is reliable.
Brief description of the drawings
Fig. 1 is the drive mechanism schematic diagram of vehicle according to embodiments of the present invention；
Fig. 2 is the structural representation of the central parking module of electric drive axle assembly according to embodiments of the present invention；
Fig. 3 is the arrangement schematic diagram of electric drive axle assembly according to embodiments of the present invention.
Reference：
Vehicle 1000,
Electric drive axle assembly 100,
Electric power assembly 101,
Power motor 11, motor output shaft VI,
Speed changer 12, case of transmission 121, input shaft I, jackshaft II, output shaft III, input gear q, idler gear
Q ', a gear driving gear 1, one keeps off driven gear 1 ', two gear driving gear 2, two keeps off driven gear 2 ', output gear z, synchronizer
S、
Differential mechanism 13, differential mechanism input gear z ',
Axle case assy 102,
Axle housing component 21, axle housing 210, cap 211, semiaxis 22,
Central parking module 103,
Parking casing 31,
EPB 32, brake drum 321, brake structure 322,
Parking axle V,
Parking gear z ",
Connection casing 33,
Adpting flange 34,
End cap 35,
Differential bearing B1, parking bearing B2, bolt 401, bolt 402.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Electric drive axle assembly 100 according to embodiments of the present invention is described referring to Fig. 1-Fig. 3.As shown in Figure 1-Figure 3, root
Include electric power assembly 101, axle case assy 102 and central parking module according to the electric drive axle assembly 100 of the embodiment of the present invention
103。
As shown in Figure 1-Figure 3, electric power assembly 101 includes power motor 11, speed changer 12 and differential mechanism 13.Such as Fig. 3 institutes
Show, axle case assy 102 includes axle housing component 21 and two semiaxis 22, and two semiaxis 22 and differential mechanism 13 are respectively positioned on axle housing component 21
It is interior.
Differential mechanism 13 has differential mechanism input unit and two differential mechanism output sections, and two differential mechanism output sections are suitable to come from
The power output of differential mechanism input unit input, power motor 11 are connected by speed changer 12 with differential mechanism input unit, two semiaxis
22 are connected to export power with two differential mechanism output sections respectively.
As shown in figure 3, electric power assembly 101 is arranged on axle housing component 21, central parking module 103 is arranged on axle housing group
On part 21, that is to say, that electric power assembly 101, central parking module 103 become one with axle case assy 102, so as to structure
It is compact, assembling is simple, alleviates quality, small volume, occupies little space, being easy to arrange on vehicle 1000, and shorten transmission
Chain, transmission loss are small, transmission efficiency.Particularly, by central 103 independent integrated installation of parking module in axle housing component 21
On, reliability is high, and cost is low.
As depicted in figs. 1 and 2, central parking module 103 is used for direct brake differential device input unit, that is to say, that in car
1000 when needing parking, central parking module 103 can direct brake differential device input unit, without passing through speed changer 12
Can realizes parking, can so shorten driving chain, and can reduce volume, is easy to the arrangement of central parking module 103.
When vehicle 1000 needs traveling, power is input to speed changer 12 by power motor 11, and power can be by different speed
Than being delivered to differential mechanism input unit, that is to say, that the power that power motor 11 exports is turned round by the change velocity modulation of speed changer 12 and transmitted
Differential mechanism input unit is given, then is delivered to by two differential mechanism output sections by two semiaxis 22 on the wheel of both sides, so as to realize
Vehicle 1000 travels.
When vehicle 1000 needs parking, manually or the mode such as electro-hydraulic gas pulls central parking module 103, moves simultaneously
Force motor 11 unloads, and at this moment power no longer passes to both sides wheel by power motor 11, but vehicle 1000 is due to inertia or on slope
Under the component effect of self gravitation on road, differential mechanism input unit is transmitted torque to by wheel, now power motor 11 unloads, and becomes
Fast device 12 is likely located at neutral gear, i.e. power motor 11 can not provide corresponding moment of torsion to ensure parking, at this moment central parking module 103
Direct brake differential device input unit, and vehicle wheel rotation is prevented by differential mechanism output section and semiaxis 22, realize parking.
Electric drive axle assembly 100 according to embodiments of the present invention, electric power assembly 101, central parking module 103 and axle housing
Assembly 102 integrates, and compact-sized, small volume, is easy to arrange, and passes through central 103 direct brake differential of parking module
Device input unit, the risk that the parking being likely to occur in the shift process of speed changer 12 can be avoided to fail, so that electric drive axle assembly
100 is more safe and reliable.
Electric drive axle assembly 100 according to embodiments of the present invention is described in detail referring to Fig. 1-Fig. 3.Such as Fig. 1-Fig. 3 institutes
Show, electric drive axle assembly 100 according to embodiments of the present invention includes electric power assembly 101, axle case assy 102 and central parking mould
Block 103.
Electric power assembly 101 includes power motor 11, speed changer 12 and differential mechanism 13.Axle case assy 102 includes axle housing group
Part 21 and two semiaxis 22, differential mechanism 13 and two semiaxis 22 are respectively positioned in axle housing component 21.
Differential mechanism 13 has differential mechanism input unit and two differential mechanism output sections, and two differential mechanism output sections are suitable to come from
The power output of differential mechanism input unit input, power motor 11 are connected by speed changer 12 with differential mechanism input unit, two semiaxis
22 are connected with two differential mechanism output sections respectively.
That is, the power that power motor 11 exports is exported after the change velocity modulation of speed changer 12 is turned round and inputted to differential mechanism
Power from differential mechanism input unit is delivered separately to two semiaxis 22 by portion, two differential mechanism output sections, and two semiaxis 22 divide
Two vehicle wheel rotations being attached thereto are not driven, so as to realize the traveling of vehicle 1000.
Electric power assembly 101 and central parking module 103 are installed on axle housing component 21, so that electric drive axle assembly
100 degree of integration is high, and function is more and is easy to arrangement.
Preferably, central parking module 103 and electric power assembly 101 are separately mounted to the front and rear sides of axle housing component 21,
That is, central parking module 103 and electric power assembly 101 are located at the different sides of axle housing component 21.
In the specific example of of the invention one as shown in Figure 3, central parking module 103 is arranged on axle housing component 21
Rear side, electric power assembly 101 are arranged on the front side of axle housing component 21, certainly in some other embodiments, central parking mould
Block 103 can also be arranged on the front side of axle housing component 21, and electric power assembly 101 is arranged on the rear side of axle housing component 21.
So, by the way that electric power assembly 101 and central parking module 103 to be arranged in the not ipsilateral of axle housing component 21,
So as to reduce the space of the side of electric power assembly 101, it is easy to arrangement.Such arrangement, be particularly suitable for use in volume
Greatly, the high-power electric power assembly 101 of power motor 11 so that electric drive axle assembly 100 is meeting high-power traveling demand
Meanwhile it is characteristics of compact layout, rational in infrastructure, vehicle space is made full use of, reduces assembly difficulty.
Specifically, as shown in figure 3, speed changer 12 has case of transmission 121, power motor 11 is fixed on case of transmission
On 121, case of transmission 121 is fixed on the side (such as front side in Fig. 3) of axle housing component 21, and central parking module 103 is pacified
Mounted in the opposite side (such as rear side in Fig. 3) of axle housing component 21.
So, case of transmission 121 can be as the installation carrier of power motor 11, and case of transmission 121 is electronic
The connection member of power assembly 101 and axle case assy 102, and central parking module 103 is also secured on axle housing component 21, so that will
Power motor 11, speed changer 12, differential mechanism 13, central parking module 103 and axle case assy 102 integrate, while in
Centre parking module 103 and power motor 11 are arranged in the both sides of axle housing component 21, so as to the structure of electric drive axle assembly 100
It is compact, connection and reasonable arrangement.
In some optional embodiments of the present invention, power motor 11 can be connected through a screw thread part and be fixed on speed changer
On housing 121, case of transmission 121 can be connected through a screw thread part and be fixed on axle housing component 21.
As shown in Fig. 2 central parking module 103 includes parking casing 31 and EPB 32, parking casing 31 is installed
On axle housing component 21, EPB 32 is fixed on parking casing 31, and EPB 32 is used for direct brake differential device
Input unit.That is, parking casing 31 is the connection member of EPB 32 and axle housing component 21, so can be easily
Central parking module 103 is arranged on axle housing component 21, simple in construction and assembling is easy.
As shown in Fig. 2 axle housing component 21 includes axle housing 210 and cap 211, case of transmission 121 is fixed on axle housing 210
Side, the cap 211 are detachably arranged in the opposite side of axle housing 210, that is to say, that cap 211 and central parking module 103
Positioned at the same side.
More specifically, the middle part of axle housing 210 has the unlimited differential mechanism receiving space in both sides end face, and cap 211 can
Releasably the middle part of axle housing 210 is fixed on installed in a unlimited side end face at the middle part of axle housing 210, case of transmission 121
On unlimited another side end face.
Alternatively, cap 211 can be connected through a screw thread part and be removably mounted on axle housing 210, specifically, such as Fig. 2
Shown, threaded connector is bolt 401, and cap 211 can be by along the circumferentially spaced multiple bolts 401 of the cap 211
It is threaded on a unlimited side end face at the middle part of axle housing 210.So, by the way that cap 211 is removably mounted on into bridge
It on shell 210, can be more convenient the installation of electric power assembly 101, and fixed structure is simple, it is easy to operate.Specifically, axle housing
The cap 211 of one side end face (taking turns the side end face at bag) at 210 middle part makes assembled, can efficiently reduce electric power
The assembly difficulty of assembly 101 and two semiaxis 22, it is more beneficial for the maintenance of differential mechanism 13.
Further, as shown in Fig. 2 cap 211 is configured to the tubular structure of both ends open, parking casing 31 passes through cap
211 and it is supported on cap 211, so as to which parking casing 31 is arranged on into transmission case by the fixation of cap 211 and axle housing 210
On body 121.Specifically, the cross-sectional area of the tubular structure, from one end away from axle housing 210 to close to one end of axle housing 210
Increase, consequently facilitating parking casing 31 passes through, is more convenient the installation of central parking module 103.
Differential mechanism 13 is supported on case of transmission 121 and parking casing 31, that is to say, that parking casing 31 passes through cap
211, and pass through the fixation of cap 211 and axle housing 210 so that parking casing 31 is arranged on case of transmission 121, so as to speed change
Device housing 121 and parking casing 31 together constitute the supporting structure of differential mechanism 13, common to support differential mechanism 13, such differential mechanism
13 supporting is more stable, and the structure of electric drive axle assembly 100 can be made compacter, further saves receiving space.It is optional
Ground, differential mechanism 13 are supported on case of transmission 121 and parking casing 31 by differential bearing B1, and differential bearing B1 includes
Two taper roll bearings, i.e. two taper roll bearings are clamped between case of transmission 121 and parking casing 31.
Specifically, parking casing 31 can be fixed on case of transmission 121 by threaded fastener.
Further, as depicted in figs. 1 and 2, differential mechanism input unit includes differential mechanism input gear z '.Central parking module
The 103 parking gear z ", parking gear z " for also including parking axle V and being fixed on parking axle V nibble with differential mechanism input gear z '
Close, parking axle V is connected with EPB 32.
That is, EPB 32 optionally brakes parking axle V, because parking gear z " is fixed on parking axle
On V, and parking gear z " engages with differential mechanism input gear z ', so as to which EPB 32 can optionally brake differential
Device input gear z '.
Alternatively, parking axle V is held by parking axle V and is supported on parking casing 31, and thus parking axle V can more preferable twelve Earthly Branches
Hold on parking casing 31.In a specific example as shown in Figure 2, parking axle V, which is held, to be included along between parking axle V axial direction
Two deep groove ball bearings being spaced apart, parking gear z " is between two deep groove ball bearings.
Preferably, parking axle V and parking gear z " is integrally formed as park tooth wheel shaft, so as to simple in construction, saving assembling
Step, structural strength are high and easy for installation.It is further preferred that park tooth wheel shaft can be provided with Lightened structure, alternatively, this subtracts
Weight structure is lightening hole, in the intensity for ensureing park tooth wheel shaft simultaneously, mitigates the weight of park tooth wheel shaft, so that central parking
The more lightweight of module 103, it is easy to the installation of central parking module 103 and axle housing component 21 and integrates.
Further, as shown in Fig. 2 EPB 32 includes brake drum 321 and brake structure 322, brake drum 321 with
Parking axle V is connected, so as to be selectively engageable brake drum 321 with parking axle V synchronous axial systems, brake structure 322 to brake
Dynamic drum 321.Alternatively, brake structure 322 includes friction plate, and brake structure 322 can by the friction of friction plate with brake drum 321
It is selectively engaged.
For the ease of the installation of EPB 32, parking axle V and parking gear z ", central parking module 103 is also wrapped
Connection casing 33 is included, EPB 32 is connected with parking casing 31 by connecting casing 33.Thus, it is total in assembling electric drive axle
During into 100, first parking casing 31 can be worn and on case of transmission 121, then parking axle V and park tooth are installed
Z " is taken turns, is subsequently mounted connection casing 33 and EPB 32.That is, by setting parking casing 31 and connection casing
33 this split type body structures, can facilitate central parking module 103 and electric power assembly 101 and axle case assy 102
Integrated installation, make the installation of central parking module 103 more convenient.
As shown in Fig. 2 central parking module 103 can also include adpting flange 34, adpting flange 34 is fixed on parking axle V
Above and in connection casing 33, brake drum 321 is connected by adpting flange 34 with parking axle V, thus parking axle V and brake drum
321 connection is simpler, and the assembling of central parking module 103 is more convenient.Alternatively, adpting flange 34 and parking axle V can be with
It is connected through a screw thread part to fix, threaded connector can be bolt 402.
Specifically, as shown in Fig. 2 parking axle V is supported on parking casing 31, the open at both ends of parking casing 31, stay
Prolong through one end of parking casing 31 towards EPB 32 axletree V one end (such as right-hand member of the parking axle V in Fig. 2)
Stretch, and fixed through connection casing 33 and by adpting flange 34 and brake drum 321, the other end of parking casing 31 passes through end cap
35 sealings.Wherein, adpting flange 34 is provided with via, and the end face of parking axle V one end is provided with screwed hole, and bolt 402 passes through
Via connects with screwed hole screw thread.
Referring to Fig. 1-Fig. 3, the parking process of electric drive axle assembly 100 according to embodiments of the present invention is described in detail：
When vehicle needs parking, manually or the mode such as electro-hydraulic gas pulls the brake structure 322 of EPB 32,
Power motor 11 unloads simultaneously, and at this moment power no longer passes to both sides wheel by power motor 11, but vehicle 1000 is due to inertia
Or under the component effect of the self gravitation on ramp, differential mechanism input unit is transmitted torque to by wheel, due to power motor 11
Unloading, speed changer 12 are likely located at neutral gear, i.e. power motor 11 can not provide corresponding moment of torsion to ensure parking, at this moment parking braking
The brake structure 322 (such as friction plate) of device 32 engages in the presence of pulling force with brake drum 321, so as to prevent system by rubbing
Dynamic drum 321 rotates, and because brake drum 321 is connected with parking axle V, parking gear z " engages with differential mechanism input gear z ', so that
Prevent differential mechanism input gear z ' from rotating, and vehicle wheel rotation is prevented by differential mechanism output section and semiaxis 22, realize parking.
Electric drive axle assembly according to embodiments of the present invention, the speed changer of different gear numbers can be used, it is applied widely.
As shown in figure 1, speed changer 12 can include input shaft I, jackshaft II and output shaft III.Input shaft I, jackshaft II and output shaft
III is supported on case of transmission 121 by bearing.Specifically, as shown in figure 1, input shaft I, jackshaft II and output shaft III
Extend along the width of vehicle 1000, the width of vehicle 1000 is the left and right directions of vehicle 1000.
Input shaft I is connected with the motor output shaft VI of power motor 11, such as input shaft I and power motor output shaft VI can
To be connected by spline structure, specifically, input shaft I has internal spline, and motor output shaft VI has what is coordinated with the internal spline
External splines.Certain input shaft I can also be connected with power motor output shaft VI by shaft coupling.Electricity according to embodiments of the present invention
Power assembly 101, by the way that the motor output shaft VI of power motor 11 and speed changer 12 input shaft I are joined directly together, driving-chain
It is short and simple in construction.
As shown in figure 1, be fixed with input gear q on input shaft I, i.e. input gear q can with the synchronous axial system of input shaft I,
Be fixed with idler gear q ' on jackshaft II, i.e. idler gear q ' can with the synchronous axial system of jackshaft II, idler gear q ' with it is defeated
Enter gear q engagements, be fixed with multiple gear driving gears on jackshaft II, i.e., multiple gear driving gears can be with jackshaft II
Synchronous axial system, multiple gear driven gears is set with output shaft III, i.e., each gear driven gear can with respect to output shaft III
Rotate, multiple gear driven gears engage correspondingly with multiple gear driving gears.Alternatively, jackshaft II and output shaft
III length and structure has a variety of, and on jackshaft II and output shaft III, meshed gears also has different logarithms, so as to speed change
Device 12 has more gears to export.
Further, output gear z is further fixed on output shaft III, i.e. output gear z can turn with output shaft III is synchronous
Dynamic, output gear z can engage with the differential mechanism input gear z ' of differential mechanism 13, so that the power that power motor 11 is exported,
Differential mechanism input gear z ' is delivered to by speed changer 12, and semiaxis 22 and wheel are driven by differential mechanism output section, realizes car
1000 travelings.
In the specific example of the present invention, multiple gear driving gears include a gear gear master of driving gear 1 and two
Moving gear 2, a gear driving gear 1 and two gear driving gear 2 are fixed on jackshaft II along the axially spaced of jackshaft II.
Multiple gear driven gears include a gear driven gear 1 ' and two gear driven gears 2 ', and a gear driving gear 1 and one keeps off driven tooth
The engagement of wheel 1 ', two gear driving gear 2 and two are kept off driven gear 2 ' and engaged, and a gear driven gear 1 ' and two keeps off driven gears 2 ' along defeated
On output shaft III, synchronizer S is arranged to optionally keep off driven gear 1 ' by one the axially spaced empty set of shaft III
Engaged with one in two gear driven gears 2 ' with output shaft III, i.e. synchronizer S can be by a gear driven gear 1 ' and output shaft
III engagement makes a gear driven gear 1 ' and the synchronous axial system of output shaft III, and synchronizer S can also be by two gear driven gears 2 ' and output
The engagement of axle III makes two gear driven gears 2 ' and the synchronous axial system of output shaft III, synchronizer S may be located on a gear driven gear 1 ' with
Output shaft III does not engage and two gear driven gears 2 ' and III asynthetic centre position of output shaft, i.e. neutral gear position.Output gear z
It is fixed on output shaft III.
That is, speed changer 12 is two shift transmissions in the embodiment, simple in construction, light weight, speed are than big, moment of torsion
Greatly, and there is stronger power performance, preferable maneuvering performance, the requirement of general vehicle can be met.
In short, electric drive axle assembly 100 according to embodiments of the present invention, central parking module 103 is assemblied in axle housing group
On part 21, and with electric power assembly 101 respectively positioned at the both sides of axle case assy 102, parking gear z " and differential mechanism input gear
Z ' is directly engaged, and on the one hand reduces the space of motor side, is easy to arrangement, does not on the other hand have to worry the gear shift of speed changer 12
During occur parking failure risk, more securely and reliably, compared to traditional running brake and EPB 32 1
Body structure, the reliability of central parking module 103 of the invention is higher, and cost is also lower.
Vehicle according to the invention 1000, vehicle 1000 according to embodiments of the present invention, bag is briefly described referring to Fig. 1
Include any of above-described embodiment electric drive axle assembly 100.Vehicle 1000 according to embodiments of the present invention, including above-mentioned implementation
Any of example electric drive axle assembly 1000, by the way that central parking module 103 is integrated on axle case assy 102, so as to have
Have the advantages that it is simple in construction, be easy to arrangement, parking it is reliable and safe.Further, since employ above-mentioned electric drive axle assembly
1000, so as to which driving-chain is short, occupies little space, be easy to the arrangement of vehicle 1000, be especially easy for the electricity of pure electric automobile
The installation of cell system, space is saved for the installation of battery system, be advantageous to be lifted the endurance of battery.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (13)
1. a kind of electric drive axle assembly, including：Electric power assembly and axle case assy, the electric power assembly include power motor,
Speed changer and differential mechanism, the differential mechanism have differential mechanism input unit and two differential mechanism output sections, and the power motor passes through
The speed changer is connected with the differential mechanism input unit, and the axle case assy includes axle housing component and two semiaxis, described two
Semiaxis and the differential mechanism are respectively positioned in the axle housing component, two semiaxis respectively with two differential mechanism output section phases
Even, wherein the electric power assembly is arranged on the axle housing component, it is characterised in that
Central parking module, the central parking module are arranged on the axle housing component and for directly braking the differential mechanism
Input unit, the central parking module include parking casing and EPB, and the parking casing is arranged on the axle housing group
On part, the EPB is fixed on the parking casing, and the EPB is used to directly brake the differential mechanism
Input unit.
2. electric drive axle assembly according to claim 1, it is characterised in that the central parking module and the electric power
Assembly is separately mounted to the front and rear sides of the axle housing component.
3. electric drive axle assembly according to claim 1, it is characterised in that
The differential mechanism input unit includes differential mechanism input gear；
The central parking module also includes：Parking axle and the parking gear being fixed on the parking axle, the parking gear
Engaged with the differential mechanism input gear, the parking axle is connected with the EPB.
4. electric drive axle assembly according to claim 3, it is characterised in that the parking axle is supported on by parking bearing
On the parking casing.
5. electric drive axle assembly according to claim 3, it is characterised in that the parking axle and parking gear one
Be formed as park tooth wheel shaft.
6. electric drive axle assembly according to claim 3, it is characterised in that the EPB includes brake drum and system
Dynamic structure, the brake drum are connected with the parking axle, and the brake structure is selectively engageable the brake drum to brake
The brake drum.
7. electric drive axle assembly according to claim 6, it is characterised in that the central parking module also includes connecting box
Body, the EPB and the parking casing are connected by the connecting box body phase.
8. electric drive axle assembly according to claim 7, it is characterised in that the central parking module also includes connection method
Orchid, the adpting flange is fixed on the parking axle and in the connecting box body, the brake drum passes through the connection
Flange is connected with the parking axle.
9. the electric drive axle assembly according to any one of claim 1-8, it is characterised in that the speed changer has speed change
Device housing, the power motor are fixed on the case of transmission, and the case of transmission is fixed on the axle housing component
Side, the central parking module are arranged on the opposite side of the axle housing component, and the differential mount is in the transmission case
On body and the parking casing.
10. electric drive axle assembly according to claim 9, it is characterised in that the axle housing component includes axle housing and cap,
Wherein described case of transmission is fixed on the side of the axle housing, and the cap is detachably arranged in the opposite side of the axle housing,
The cap is configured to the tubular structure of both ends open, and the parking casing is through the cap and is supported on the cap.
11. electric drive axle assembly according to claim 3, it is characterised in that the speed changer includes input shaft, jackshaft
And output shaft, the input shaft are connected with the motor output shaft of the power motor, be fixed with the input shaft input gear,
The idler gear engaged with the input gear is fixed with the jackshaft, and multiple gear masters are fixed with the jackshaft
Moving gear, the output gear engaged with the differential mechanism input gear of the differential mechanism, and output shaft are fixed with the output shaft
On be set with and correspond the multiple gear driven gears engaged with multiple gear driving gears.
12. electric drive axle assembly according to claim 11, it is characterised in that multiple gear driving gears include one
Driving gear and two gear driving gear are kept off, multiple gear driven gears include the gear engaged with described one gear driving gear
Driven gear and the two gear driven gears engaged with the two gear driving gear；
The speed changer also includes synchronizer, and the synchronizer is arranged to described one gear driven gear and described optionally
One in two gear driven gears engages with the output shaft.
13. a kind of vehicle, it is characterised in that including the electric drive axle assembly according to any one of claim 1-12.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030700.6A CN105966235B (en) | 2015-12-31 | 2015-12-31 | Electric drive axle assembly and the vehicle with the electric drive axle assembly |
| KR1020187017160A KR102103322B1 (en) | 2015-12-31 | 2016-12-28 | Electric drive shaft assembly and vehicle having the same |
| PCT/CN2016/112658 WO2017114421A1 (en) | 2015-12-31 | 2016-12-28 | Electric drive axle assembly and vehicle having the same |
| US16/015,353 US10655717B2 (en) | 2015-12-31 | 2018-06-22 | Electric drive axle assembly and vehicle having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030700.6A CN105966235B (en) | 2015-12-31 | 2015-12-31 | Electric drive axle assembly and the vehicle with the electric drive axle assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105966235A CN105966235A (en) | 2016-09-28 |
| CN105966235B true CN105966235B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511030700.6A Active CN105966235B (en) | 2015-12-31 | 2015-12-31 | Electric drive axle assembly and the vehicle with the electric drive axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105966235B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102103322B1 (en) * | 2015-12-31 | 2020-04-23 | 비와이디 컴퍼니 리미티드 | Electric drive shaft assembly and vehicle having the same |
| CN108674162A (en) * | 2018-05-31 | 2018-10-19 | 汽解放汽车有限公司 | A kind of axle assembly of Dual-motors Driving |
| CN109094298A (en) * | 2018-08-20 | 2018-12-28 | 北汽福田汽车股份有限公司 | Electric axle assembly and electric car |
| FR3129695A1 (en) * | 2021-11-29 | 2023-06-02 | Renault S.A.S | MODULAR ELECTRIC TRAIN FOR MOTOR VEHICLE |
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| Publication number | Publication date |
|---|---|
| CN105966235A (en) | 2016-09-28 |
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