CN208277829U - Dual-motors Driving bridge for electric vehicle - Google Patents
Dual-motors Driving bridge for electric vehicle Download PDFInfo
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- CN208277829U CN208277829U CN201820617683.9U CN201820617683U CN208277829U CN 208277829 U CN208277829 U CN 208277829U CN 201820617683 U CN201820617683 U CN 201820617683U CN 208277829 U CN208277829 U CN 208277829U
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Abstract
The utility model discloses Dual-motors Driving bridges for electric vehicle, including high-speed driving motor, driven at low speed motor, high-speed driving lock device, driven at low speed lock device, single-stage planetary row, differential mechanism, left half axle, right axle shaft；The high-speed driving lock device, high-speed driving motor, single-stage planetary row, driven at low speed motor and driven at low speed lock device are sequentially coaxially installed；The single-stage planetary row connect with differential mechanism；The differential mechanism is connect with left half axle, right axle shaft respectively；The high-speed driving lock device, driven at low speed lock device are by closure or release, so that drive axle realizes speed driving modes, low speed driving mode, joint drive mode, reverse mode, neutral mode, any mode of park mode.It shifts gears response quickly, structure, control are simple, and high reliablity, low energy consumption for switching, assembly transmission efficiency height and at low cost, have higher cost performance, stronger potential market competitiveness.
Description
Technical field
The utility model relates to electric car field, in particular to Dual-motors Driving bridge for electric vehicle.
Background technique
With the continuous development of society and Vehicle Engineering technology, car ownership is more and more big, causes to environment and the energy
Very big pressure.To solve the above-mentioned problems, urgent need Vehicle Engineering actuation techniques carry out biggish innovation, first is that mixing is dynamic
Power technology, second is that pure electric vehicle technology.Above two technology relates generally to the innovation of vehicle drive system, first is that introducing accumulation of energy dress
It sets, second is that introducing electric driver, such as motor.
In current pure electric vehicle actuation techniques, most of vehicles drive vehicle row using motor and fixed speed ratio gearbox
It sails, can satisfy the low-speed electronic automotive needs in some regions to a certain extent, however, domain full-time for high speed is electronic
For automobile, it has been difficult to take into account the transmission demand of low speed high torque and high speed, high efficiency high reliability, just there is an urgent need to use for this
The automatic transmission of two speed or more carrys out stand-by motor driving vehicle, gives full play to electric drive power and height in full velocity shooting
Efficiency area drive characteristic.
To solve the above-mentioned problems, there are following several solutions at present: first is that being aided with wet friction using planetary gear
Piece utilizes two grades for electric vehicle or multidrive of hydraulic gear-shifting；Second is that using two grades of motor driven shifting-fork gear-shifting
Or multidrive；Third is that being aided with two grades or multidrive of shifting-fork gear-shifting gear set using the double clutches of wet type.
However, the main problems faced of automatic gearbox for electric automobile technical research has: one, input speed is relative to conventional fuel oil vapour
Vehicle improves nearly 3 times, and (conventional fuel oil car input speed focuses mostly within 3000rpm, and motor in electric automobile revolving speed generally exists
8000rpm or more), cause gearbox efficiency, shift mode, lubricating system that qualitative change has occurred, conventional gearbox technology is difficult
To adapt to；Two, there is idling work state in conventional fuel oil automobile, thus, shift hydraulic pump can provide minimum shift pressure,
However, motor in electric automobile is that gradually raising speed to specified speed, shift gears by the conventional hydraulic formed since nearly 100 years from 0 revolving speed
Technology is no longer applicable in.Three, motor overload torque high acceleration is big, and gearbox input torque is much larger than conventional fuel oil automobile, causes
Shift clutching member is difficult to match.Four, orthodox car uses mechanical braking, and noenergy recycles this requirement；However, electric car
It needs maximumlly to recycle braking energy as far as possible, causes gearbox brake shift control difficulty big.Five, with respect to orthodox car and
Speech, electric car are high to the requirement of automatic gear-box transmission efficiency, cause automatic gear-box structure-design technique difficulty big.Six,
A series of problems, such as high-frequency vibration, self-excited vibration, noise, impact, fatigue damage, fretting wear caused by the high revolving speed of motor, is handled
Difficulty is big.Seven, equivalent axial width is small, that is, need automatic gear-box design it is thinner, so as to for motor axial dimension leave compared with
Good space, causes facewidth equivalent load very big, design difficulty is big.Eight, require automatic transmission gear shift rapid, unpowered
It is disconnected.Nine, as vehicle super-high technology low cost direction is developed, it is desirable that automatic gear-box low cost.
In summary, although above-mentioned three kinds of solutions respectively solve asking for a part of automatic gearbox for electric automobile
Topic, however it is difficult really meet the needs of electric car.At present there is shift low-response in electric car, and structure, control are complicated, can
Low by property, switching energy consumption is high, and assembly transmission efficiency is low, the technical problems such as at high cost.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of shift response quickly, structure, control are simple, reliability
Height, low energy consumption for switching, assembly transmission efficiency height and Dual-motors Driving bridge for electric vehicle at low cost.
In order to solve the above-mentioned technical problem, the technical solution of the utility model are as follows:
Dual-motors Driving bridge for electric vehicle, including high-speed driving motor, driven at low speed motor, high-speed driving lock device,
Driven at low speed lock device, single-stage planetary row, differential mechanism, left half axle, right axle shaft；
The high-speed driving lock device, high-speed driving motor, single-stage planetary row, driven at low speed motor and driven at low speed locking
Device is sequentially coaxially installed；The single-stage planetary row connect with differential mechanism；The differential mechanism is connect with left half axle, right axle shaft respectively；
The high-speed driving lock device, driven at low speed lock device are by closure or release, so that drive axle realizes that high speed is driven
Dynamic model formula, low speed driving mode, joint drive mode, reverse mode, neutral mode, any mode of park mode.
Preferably, the high-speed driving lock device includes unidirectional locking device, high speed driving link, high speed brake component；The list
It include inner ring, outer ring to lock device；
The high speed driving link is connect with the left end of high-speed driving motor shaft, and the high speed brake component and drive axle cabinet connect
It connects, the connection of the inner ring of high speed driving link and unidirectional locking device is extended in high-speed driving motor shaft left end；The one-way lock
Only the outer ring of device is connect with drive axle cabinet.
Preferably, the single-stage planetary row includes sun gear, planetary gear, ring gear, pivoted arm, and the planetary gear and pivoted arm are logical
Spline pair connection is crossed, the sun gear is connect with planetary gear external toothing；The planetary gear is connect with ring gear internal messing；The height
The right end of fast drive motor shaft is connect with ring gear, and the sun gear is connect with the left end of driven at low speed motor shaft；The internal tooth
Circle is connect with high-speed driving motor shaft right end.
Preferably, the driven at low speed lock device includes low speed driving link, low speed brake component；The low speed driving link with it is low
The right end of fast drive motor shaft connects, and the low speed brake component is connect with drive axle cabinet.
Preferably, setting external tooth forms driving gear on the outside of the pivoted arm；Further include driven gear, the driven gear with
The shell of differential mechanism is fixedly connected, and the driving gear is connect with driven gear external toothing.
By adopting the above technical scheme, due to used high-speed driving motor, driven at low speed motor, high-speed driving lock device,
The technical characteristics such as driven at low speed lock device, single-stage planetary row, differential mechanism, left half axle, right axle shaft.By high-speed driving lock device,
The closure or release of driven at low speed lock device so that drive axle realize speed driving modes, low speed driving mode, reverse mode,
Any mode of neutral mode, park mode.The utility model shift response quickly, structure, control are simple, high reliablity,
Low energy consumption for switching, assembly transmission efficiency height and at low cost, has higher cost performance.
Detailed description of the invention
Fig. 1 is the utility model principle structural schematic diagram.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that
The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This
Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
As shown in Fig. 1, Dual-motors Driving bridge for electric vehicle, including high-speed driving motor 5, driven at low speed motor 13,
High-speed driving lock device 1, driven at low speed lock device 16, single-stage planetary arrange 22, differential mechanism 18, left half axle 19, right axle shaft 20.It will be high
Speed driving lock device 1, high-speed driving motor 5, single-stage planetary row 22, driven at low speed motor 13 and driven at low speed lock device 16 are successively
It is co-axially mounted；Single-stage planetary row 22 is connect with differential mechanism 18；Differential mechanism 18 is connect with left half axle 19, right axle shaft 20 respectively.
By high-speed driving lock device 1, driven at low speed lock device 16 by closure or release in specific implementation, so that drive axle realization is high
Any mode of fast drive mode, low speed driving mode, reverse mode, neutral mode, park mode.
In specific implementation, high-speed driving lock device 1 includes unidirectional locking device 2, high speed driving link 3, high speed brake component 4；It is single
It include inner ring, outer ring to lock device 2.High speed driving link 3 is connect with the left end of high-speed driving motor shaft 6, by high speed brake component 4
It is connect with drive axle cabinet, 6 left end of high-speed driving motor shaft is extended to the company of the inner ring of high speed driving link and unidirectional locking device 2
It connects；The outer ring of unidirectional locking device 2 is connect with drive axle cabinet.
Single-stage planetary row 22 includes sun gear 8, planetary gear 9, ring gear 7, pivoted arm 10, and planetary gear 9 and pivoted arm 10 are passed through
Spline pair connection, sun gear 8 is connect with 9 external toothing of planetary gear；Planetary gear 9 is connect with 7 internal messing of ring gear；High speed is driven
The right end of dynamic motor shaft 6 is connect with ring gear 7, and sun gear is connect with the left end of 8 driven at low speed motor shafts 12；By ring gear 7
It is connect with 6 right end of high-speed driving motor shaft.Driven at low speed lock device 16 includes low speed driving link 14, low speed brake component 15；It will be low
Fast driving link 14 is connect with the right end of driven at low speed motor shaft 12, and low speed brake component 15 is connect with drive axle cabinet.In pivoted arm
10 outside setting external tooths form driving gear 11；It further include driven gear 17 in specific implementation, by driven gear 17 and differential mechanism
18 shell is fixedly connected, and driving gear 11 is connect with 17 external toothing of driven gear.
The utility model main control strategies and operating mode are as follows:
Low speed driving mode:
When vehicle start and in run at a low speed when, high-speed driving motor 5 close, driven at low speed motor 13 rotate forward (with
Vehicle forward direction is consistent), driven at low speed lock device 16 discharges, the brake lock part release of high-speed driving lock device 1, unidirectionally
Lock device 2 works；Driven at low speed motor 13 passes through driven at low speed motor shaft 12 and imparts power to sun gear 8, and sun gear 8 will
Power passes to planetary gear 9, at this point, ring gear 7 has counter motion trend, ring gear 7 passes through high-speed driving motor shaft 6 and list
It being fixedly connected to the inner ring of lock device 2, the outer ring of unidirectional locking device 2 plays locking effect to the inner ring with counter motion trend,
In turn, ring gear 7 is in lockup state, and ring gear 7 is that single-stage planetary row 22 provides reaction force, and planetary gear 9 transmits power
To pivoted arm 10, power is passed to driven gear 17 by driving gear 11 by pivoted arm 10, and driven gear 17 imparts power to differential
Device assembly 18, differential assembly 18 imparts power to left half axle 19 and right axle shaft 20 drives vehicle driving.
Under low speed driving mode, the driven at low speed motor shaft 12 and differential assembly 18 of Dual-motors Driving bridge for electric vehicle
Rotation speed relation:
Wherein: Z1 indicates the number of teeth of sun gear 4, and Z2 indicates the ring gear number of teeth, and Z3 indicates the number of teeth of driving gear, and Z4 is indicated
The number of teeth of driven gear, n1 indicate that the revolving speed of driven at low speed motor shaft, n2 indicate that the revolving speed of high-speed driving motor shaft, n3 indicate poor
The revolving speed of fast device assembly 18.
Speed driving modes:
When vehicle high speed when driving, driven at low speed motor 13 is closed, and high-speed driving motor 5 rotates forward (before vehicle
It is consistent into direction), driven at low speed lock device 16 is closed, and high-speed driving lock device 1 discharges；High-speed driving motor 5 is driven by high speed
Dynamic motor shaft 6 imparts power to ring gear 7, and ring gear 7 imparts power to planetary gear 9, at this point, driven at low speed lock device 16
Low speed brake component 15 low speed driving link 14 is braked, in turn, driven at low speed motor shaft 12 and sun gear 8 are in lockup state,
Sun gear 8 provides reaction force for single-stage planetary row, and planetary gear 9 imparts power to pivoted arm 10, and pivoted arm 10 is by power by actively
Gear 11 passes to driven gear 17, and driven gear 17 imparts power to differential assembly 18, and differential assembly 18 is by power
It passes to left half axle 19 and right axle shaft 20 drives vehicle driving.
Under speed driving modes, the high-speed driving motor shaft 6 and differential assembly 18 of Dual-motors Driving bridge for electric vehicle
Rotation speed relation:
Joint drive mode:
When the high-power acceleration driving of vehicle, driven at low speed motor 13 is rotated forward (consistent with vehicle forward direction), high
Fast driving motor 5 rotates forward (consistent with vehicle forward direction), and driven at low speed lock device 16 discharges, high-speed driving lock device 1
Release；High-speed driving motor 5 imparts power to ring gear 7 by high-speed driving motor shaft 6, and ring gear 7 imparts power to
Planetary gear 9；Driven at low speed motor 13 imparts power to sun gear 8 by slowspeed machine axis 12, and sun gear 8 imparts power to
Planetary gear 9；At this point, planetary gear 9 will pass to pivoted arm after the superposition of the power of high-speed driving motor 5 and driven at low speed motor 13
10, power is passed to driven gear 17 by driving gear 11 by pivoted arm 10, and driven gear 17 imparts power to differential assembly
18, differential assembly 18 imparts power to left half axle 19 and right axle shaft 20 drives vehicle driving.
Reverse mode:
When vehicle demand reverse travel, high-speed driving motor 5 is closed, and the high speed brake component 4 of high-speed driving lock device 1 will
High speed driving link 3 is braked, and in turn, high-speed driving motor shaft 6 and ring gear 7 are in lockup state；Low speed lock device 16 is in and releases
State is put, reversed (opposite with vehicle forward direction) power is passed to sun gear 8 by driven at low speed motor 13, and sun gear 8 will move
Power passes to planetary gear 9, at this point, ring gear 7 has counter motion trend, ring gear 7 is by high-speed driving motor shaft 6 and unidirectionally
The inner ring of lock device 2 is fixedly connected, and the outer ring of unidirectional locking device 2 plays locking effect to the inner ring with counter motion trend, into
And ring gear 7 is in lockup state, ring gear 7 provides reaction force for single-stage planetary row, and planetary gear 9, which imparts power to, to be turned
Power is passed to driven gear 17 by driving gear 11 by arm 10, pivoted arm 10, and it is total that driven gear 17 imparts power to differential mechanism
At 18, differential assembly 18 imparts power to left half axle 19 and right axle shaft 20 drives vehicle backing traveling.
Neutral gear and park mode:
When driven at low speed lock device 16 and high-speed driving lock device 1 are in release conditions, 12 He of driven at low speed motor shaft
High-speed driving motor shaft 6 is in release conditions, and in turn, ring gear 7 and sun gear 8 are also at release conditions, pivoted arm 10 and poor
Fast device assembly 18 is in power interruption state, and vehicle realizes neutral mode.When driven at low speed lock device 16 is in closure and unidirectional
When lock device 2 works, i.e., low speed brake component 15 brakes low speed driving link 14, driven at low speed motor shaft 12 and high-speed driving motor
Axis 6 is in lockup state, and in turn, ring gear 7 and sun gear 8 are also at lockup state, and single-stage planetary row is in lockup state,
Vehicle realizes park mode.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.
Claims (5)
1. Dual-motors Driving bridge for electric vehicle, which is characterized in that driven including high-speed driving motor, driven at low speed motor, high speed
Dynamic lock device, driven at low speed lock device, single-stage planetary row, differential mechanism, left half axle, right axle shaft；
The high-speed driving lock device, high-speed driving motor, single-stage planetary row, driven at low speed motor and driven at low speed lock device according to
It is secondary to be co-axially mounted；The single-stage planetary row connect with differential mechanism；The differential mechanism is connect with left half axle, right axle shaft respectively；
The high-speed driving lock device, driven at low speed lock device are by closure or release, so that drive axle realizes high-speed driving mould
Formula, low speed driving mode, joint drive mode, reverse mode, neutral mode, any mode of park mode.
2. Dual-motors Driving bridge for electric vehicle according to claim 1, which is characterized in that the high-speed driving lock device
Including unidirectional locking device, high speed driving link, high speed brake component；The unidirectional locking device includes inner ring, outer ring；
The high speed driving link is connect with the left end of high-speed driving motor shaft, and the high speed brake component is connect with drive axle cabinet,
Extend the connection of the inner ring of high speed driving link and unidirectional locking device in high-speed driving motor shaft left end；The unidirectional locking device
Outer ring connect with drive axle cabinet.
3. Dual-motors Driving bridge for electric vehicle according to claim 2, which is characterized in that the single-stage planetary, which is arranged, includes
Sun gear, planetary gear, ring gear, pivoted arm, the planetary gear are connect with pivoted arm by spline pair, outside the sun gear and planetary gear
Engagement connection；The planetary gear is connect with ring gear internal messing；The right end of the high-speed driving motor shaft is connect with ring gear, institute
Sun gear is stated to connect with the left end of driven at low speed motor shaft；The ring gear is connect with high-speed driving motor shaft right end.
4. Dual-motors Driving bridge for electric vehicle according to claim 3, which is characterized in that the driven at low speed lock device
Including low speed driving link, low speed brake component；The low speed driving link is connect with the right end of driven at low speed motor shaft, the low speed system
Moving part is connect with drive axle cabinet.
5. Dual-motors Driving bridge for electric vehicle according to claim 4, which is characterized in that setting is outer on the outside of the pivoted arm
Tooth forms driving gear；It further include driven gear, the driven gear is fixedly connected with the shell of differential mechanism, the driving gear
It is connect with driven gear external toothing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820617683.9U CN208277829U (en) | 2018-04-26 | 2018-04-26 | Dual-motors Driving bridge for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820617683.9U CN208277829U (en) | 2018-04-26 | 2018-04-26 | Dual-motors Driving bridge for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208277829U true CN208277829U (en) | 2018-12-25 |
Family
ID=64752345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820617683.9U Active CN208277829U (en) | 2018-04-26 | 2018-04-26 | Dual-motors Driving bridge for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208277829U (en) |
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2018
- 2018-04-26 CN CN201820617683.9U patent/CN208277829U/en active Active
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