CN207433246U - Pure electric automobile dual-motor drive system - Google Patents
Pure electric automobile dual-motor drive system Download PDFInfo
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- CN207433246U CN207433246U CN201721345995.0U CN201721345995U CN207433246U CN 207433246 U CN207433246 U CN 207433246U CN 201721345995 U CN201721345995 U CN 201721345995U CN 207433246 U CN207433246 U CN 207433246U
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- gear
- motor drive
- motor
- output shaft
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Abstract
A kind of pure electric automobile dual-motor drive system, including：Two with master,The motor of driven gear,Two lazy-tongs for carrying combination gear,Two output shafts,Two gear driven gears,Jackshaft and differential mechanism with transmission gear,The tooth hub of two lazy-tongs is fixedly connected with the driven gear of the first motor and the second motor and is placed on the first output shaft and the second output shaft respectively,One end of two lazy-tongs is the combination gear being fixedly connected with output shaft,The other end is the combination gear as EV grades of driving gears,Distinguish EV mono- of the empty set on the first output shaft and the second output shaft and keep off driving gear and EV two gear driving gears,Second level gear driven gear is fixedly installed on the first output shaft and is meshed with the transmission gear of jackshaft,First order gear driven gear is fixedly installed on jackshaft,Differential mechanism is meshed by main deceleration driving gear with two lazy-tongs respectively.The utility model is worked using dual-motor combination, simple in structure, multiple-working mode only can be realized by tooth shaft and new lazy-tongs, cost is relatively low, it is easy to accomplish and smooth gear shifting, power failure-free.
Description
Technical field
The utility model relates to a kind of technologies in pure electric automobile field, are specifically a kind of double electricity of pure electric automobile
There are two the drive systems of above pure electric gear for machine, bi-motor.
Background technology
Currently, most of pure electric automobile drive systems can be divided into two kinds：First, using single-stage speed reducing case, single-stage is only relied on
Reduction gearing, which is realized, slows down, and when the vehicle runs at a high speed, motor keeps higher rotating speed, to noise control and course continuation mileage side
Face is all unfavorable, and automobile running working condition, from low speed to high speed stage, motor is difficult to always work at high-efficiency operation area, causes energy
Loss；Second is that using multi-shifting speed variator, the drive system increase ratio coverage and according to different operating modes into scanning frequency than change,
Improve motor working efficiency, but executing agencies' cost such as planetary gear mechanism is complicated, clutch brake is higher.
Utility model content
The utility model is asked for prior art operating mode is few, complicated, the cumbersome, shifting power of manipulation interrupts
Topic, is proposed a kind of pure electric automobile dual-motor drive system, is worked using dual-motor combination, simple in structure, only by tooth shaft and
Multiple-working mode can be realized in new lazy-tongs, and cost is relatively low, it is easy to accomplish and smooth gear shifting, power failure-free.
The utility model is achieved through the following technical solutions：
The utility model includes：Two with driving and driven gear motors, two with combination gear lazy-tongs,
Two output shafts, two gear driven gears, jackshaft and differential mechanism with transmission gear, wherein：Two lazy-tongs
Tooth hub be fixedly connected respectively with the driven gear of the first motor and the second motor and be placed in the first output shaft and second output
On axis, one end of two lazy-tongs is the combination gear being fixedly connected with output shaft, and the other end is to keep off driving tooth as EV
The combination gear of wheel, i.e., EV mono- of the empty set on the first output shaft and the second output shaft respectively keep off driving gear and the gears of EV bis- actively
Gear, second level gear driven gear are fixedly installed on the first output shaft and are meshed with the transmission gear of jackshaft, and first
Grade gear driven gear be fixedly installed on jackshaft, differential mechanism by main deceleration driving gear respectively with two lazy-tongs phases
Engagement.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the schematic diagram of three electronic gears in embodiment；
Fig. 3 is the concrete structure of first and second lazy-tongs A, B in embodiment
In figure：First motor 1, the first motor driving gear 2, driven gear 3, the first conjunction gear 4, second level gear are driven
Gear 5, EV mono- keep off driving gear 6, the first output shaft 7, second level shift gear 8, gear driven gear 9, jackshaft 10, EV
Two gear driving gear 11, the second combination gear 12, driven gear 13, the second output shaft 14, the second motor 15, the second motor are actively
Gear 16, differential mechanism 17, jackshaft fore bearing 18, main deceleration driving gear 19, EV gears combination gear 20, motor drive passive tooth
Bearing 23, synchronizer gear sleeve 24, first and second lazy-tongs A, B, first transfer gear after wheel 21, shift gear 22, jackshaft
I, second gear II, the first electric-machine directly-driven gear A1, the second electric-machine directly-driven gear B1 are transferred.
Specific embodiment
As depicted in figs. 1 and 2, the present embodiment includes：First motor 1, the second motor 15,2 and of the first motor driving gear
Driven gear 3, the second motor driving gear 16 and driven gear 13, the first and second lazy-tongs A and B, EV mono- keep off driving tooth
Wheel 6, EV two gear driving gears 11, gear driven gear 9, the first output shaft 7, the second output shaft 14, jackshaft 10, differential mechanism
17。
As shown in figure 3, the first lazy-tongs A and the second lazy-tongs B structure is identical, include：Main master of slowing down
Bearing 23 and synchronizer after moving gear 19, EV gears combination gear 20, motor drive driven gear 21, shift gear 22, jackshaft
Tooth set 24, wherein：The main reduction driven tooth of differential mechanism 17 is engaged with main deceleration driving gear 19, shift gear 22, motor drive
Driven gear 21, EV gear combination gears 20 are set in turn on the output shaft 7 at main 19 place of deceleration driving gear；Shift gear
22nd, synchronizer gear sleeve 24 and motor drive driven gear 21 are placed on output shaft 7, and synchronizer gear sleeve 24 and motor drive are passive
21 gap spline connection of gear, and synchronizer gear sleeve 24 can partially pass through the hollow lightening hole of motor drive driven gear 21, two
It can realize and slide axially between person.
The motor drive driven gear 21 is equipped with the synchromesh gear hub of integral type, synchromesh gear hub and motor drive
Driven gear 21 is fixedly connected.
The shift gear 22 is equipped with the conjunction gear of integral type, and conjunction gear is fixedly connected with EV shift gears 22.
The EV gear combination gears 20 are connected with 7 spline of output shaft.
There are axially extended part, synchronizer gear sleeve 24 combines when being stirred to one side with EV gears the synchronizer gear sleeve 24
Gear 20 engages and is linked into EV gears, and realization is connected with differential mechanism 17；It engages, hangs with gear combination gear when being stirred to opposite side
Enter gear and transfer gear, realization is connected with jackshaft 10；During positioned at middle position, disconnected with jackshaft 10 and differential mechanism 17.
The tooth hub of the lazy-tongs A and B is driven with 3 and second motor 15 of the driven gear of the first motor 1 respectively
Gear 13 is fixedly connected, and is passed through needle bearing and be placed on the first output shaft 7 and the second output shaft 14, lazy-tongs A and B
One end be respectively the first and second conjunction gears 4 and 12 for being fixedly connected with the first output shaft 7, the second output shaft 14, the other end
Respectively EV mono- keeps off the conjunction gear of driving gear 6 and EV two gear driving gears 11.
24 both sides of synchronizer gear sleeve are equipped with synchro converter ring.
The pure electric automobile dual-motor drive system of the utility model can realize multiple-working mode：
Single motor operating mode：
First motor 1 works, and lazy-tongs A is moved to left, and power is through EV first gears 6, gear driven gear 9, jackshaft
10th, second level gear driven gear 5, the first output shaft 7 are transferred to differential mechanism 17, drive vehicle；Lazy-tongs A is moved to right, and first
1 power of motor is directly transferred to differential mechanism 17 through the first output shaft 7, drives vehicle.It can equally realize Brake energy recovery, electricity
Machine inverts, and realizes single motor reversing mode.
Second motor 15 works, and lazy-tongs B is moved to left, and power is through EV second gears 11, gear driven gear 9, jackshaft
10th, second level gear driven gear 5, the first output shaft 7 are transferred to differential mechanism 17, drive vehicle；Lazy-tongs B is moved to right, and second
15 power of motor is directly transferred to differential mechanism 17 through the second output shaft 14, drives vehicle.It can equally realize Brake energy recovery,
Motor reversal realizes single motor reversing mode.
Bi-motor operating mode：
When power demand is larger, the first motor 1 and the second motor 15 work at the same time.Lazy-tongs A is moved to left, lazy-tongs
B is moved to left, 1 power of the first motor through EV first gears 6, gear driven gear 9, jackshaft 10, second level gear driven gear 5,
First output shaft 7 is transferred to differential mechanism 17；Second motor power through EV second gears 11, gear driven gear 9, jackshaft 10,
Second level gear driven gear 5, the first output shaft 7 are transferred to differential mechanism 17, and two motor powers are common to drive coupled to differential mechanism
Motor-car.It can equally realize Brake energy recovery, motor reversal realizes bi-motor reversing mode.
Lazy-tongs A is moved to left, and lazy-tongs B is moved to right, and 1 power of the first motor is through EV first gears 6, gear driven gear
9th, jackshaft 10, second level gear driven gear 5, the first output shaft 7 are transferred to differential mechanism 17；Second motor, 15 power directly passes through
Second output shaft 14 is transferred to differential mechanism 17, and two motor powers drive vehicle jointly coupled to differential mechanism.It can equally realize
Brake energy recovery, motor reversal realize bi-motor reversing mode.
Lazy-tongs A is moved to right, and lazy-tongs B is moved to left, and 1 power of the first motor is directly transferred to differential through the first output shaft 7
Device 17；Second motor, 15 power through EV second gears 11, gear driven gear 9, jackshaft 10, second level gear driven gear 5,
First output shaft 7 is transferred to differential mechanism 17, and two motor powers drive vehicle jointly coupled to differential mechanism.It can equally realize
Brake energy recovery, motor reversal realize bi-motor reversing mode.
Lazy-tongs A is moved to right, and lazy-tongs B is moved to right, and 1 power of the first motor is directly transferred to differential through the first output shaft 7
Device 17,15 power of the second motor are directly transferred to differential mechanism 17 through the second output shaft 14, and two motor powers are coupled to differential mechanism,
Common driving vehicle.It can equally realize Brake energy recovery, motor reversal realizes bi-motor reversing mode.
Specific operating mode see the table below：
Note：Zero-work, ×-does not work, and L- lazy-tongs move to left, and R- lazy-tongs move to right, 0- lazy-tongs middle positions
When synchronizer gear sleeve 24, which is stirred to the right, to be engaged with EV gear combination gears 20, the power of the second motor 15 passes through successively
Motor drive driving gear 16, motor drive driven gear 21, synchronizer gear sleeve 24, EV gears combination gear 20, jackshaft 10, master
Deceleration driving gear 19, the differential mechanism 17 with main deceleration passive tooth are transferred to the wheel of automobile, realize that the pure electricity of one kind of vehicle drives
Dynamic or power reverse is transmitted to realize vehicle Brake energy recovery.
When synchronizer gear sleeve 24 is stirred and the combination tooth engagement of shift gear 22 to the left, the power of motor 15 is successively by electricity
Machine transmission gear 16, motor drive driven gear 21, synchronizer gear sleeve 24, shift gear 22, gear driven gear 9, are transferred
To jackshaft.
When synchronizer gear sleeve 24 is located at middle position, motor 15 is disconnected with jackshaft, differential mechanism 17, is ensured in another motor
The transmission efficiency of speed changer during driving.
Above-mentioned specific implementation can by those skilled in the art on the premise of without departing substantially from the utility model principle and objective with
Different modes carries out it local directed complete set, and the scope of protection of the utility model is subject to claims and not by above-mentioned specific
Implementation is limited, and each implementation within its scope is by the constraint of the utility model.
Claims (7)
1. a kind of pure electric automobile dual-motor drive system, which is characterized in that including：Two motors with driving and driven gear,
Two with the lazy-tongs of combination gear, two output shafts, two gear driven gears, the jackshaft with transmission gear with
And differential mechanism, wherein：Driven gear of the tooth hub of two lazy-tongs respectively with the first motor and the second motor is fixedly connected simultaneously
It is placed on the first output shaft and the second output shaft, one end of two lazy-tongs is the conjunction gear being fixedly connected with output shaft
Wheel, the other end be as EV keep off driving gear combination gear, i.e., respectively empty set on the first output shaft and the second output shaft
EV mono- keeps off driving gear and EV two gear driving gears, second level gear driven gear are fixedly installed on the first output shaft and in
The transmission gear of countershaft is meshed, and first order gear driven gear is fixedly installed on jackshaft, and differential mechanism is led by main slow down
Moving gear is meshed respectively with two lazy-tongs.
2. pure electric automobile dual-motor drive system according to claim 1, it is characterized in that, described two lazy-tongs
Structure is identical, includes：Main deceleration driving gear, EV gears combination gear, motor drive driven gear, shift gear, jackshaft
Bearing and synchronizer gear sleeve afterwards, wherein：The main reduction driven tooth of differential mechanism is engaged with main deceleration driving gear, shift gear, electricity
Machine transmission driven gear, EV gear combination gears and main deceleration driving gear are set in turn on jackshaft；Shift gear, synchronizer
Tooth covers and motor drive driven gear is placed on jackshaft, and synchronizer gear sleeve connects with motor drive driven gear gap spline
It connects, and synchronizer gear sleeve can partially pass through the hollow lightening hole of motor drive driven gear, can realize slide axially between the two.
3. pure electric automobile dual-motor drive system according to claim 2, it is characterized in that, the motor drive is passive
Gear is equipped with the synchromesh gear hub of integral type, which is fixedly connected with motor drive driven gear.
4. pure electric automobile dual-motor drive system according to claim 2, it is characterized in that, it is set on the shift gear
There is integral gear combination gear, gear combination gear is fixedly connected with shift gear.
5. pure electric automobile dual-motor drive system according to claim 2, it is characterized in that, EV gear combination gears
It is connected with jackshaft spline.
6. pure electric automobile dual-motor drive system according to claim 2, it is characterized in that, the synchronizer gear sleeve two
Side is equipped with synchro converter ring.
7. pure electric automobile dual-motor drive system according to claim 2, it is characterized in that, the synchronizer gear sleeve is deposited
In axially extended part, synchronizer gear sleeve engages with EV gear combination gears when being stirred to one side and is linked into EV gears, realization and differential
Device connects；It engages, realizes and intermediate axis connection with gear combination gear when being stirred to opposite side；During positioned at middle position, with centre
Axis and differential mechanism disconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345995.0U CN207433246U (en) | 2017-10-19 | 2017-10-19 | Pure electric automobile dual-motor drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345995.0U CN207433246U (en) | 2017-10-19 | 2017-10-19 | Pure electric automobile dual-motor drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207433246U true CN207433246U (en) | 2018-06-01 |
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ID=62292278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721345995.0U Active CN207433246U (en) | 2017-10-19 | 2017-10-19 | Pure electric automobile dual-motor drive system |
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| CN (1) | CN207433246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571728A (en) * | 2017-10-19 | 2018-01-12 | 上海汽车变速器有限公司 | Pure electric automobile dual-motor drive system |
| CN111251875A (en) * | 2018-11-30 | 2020-06-09 | 比亚迪股份有限公司 | Power driving system and vehicle with same |
-
2017
- 2017-10-19 CN CN201721345995.0U patent/CN207433246U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571728A (en) * | 2017-10-19 | 2018-01-12 | 上海汽车变速器有限公司 | Pure electric automobile dual-motor drive system |
| CN107571728B (en) * | 2017-10-19 | 2023-09-26 | 上海汽车变速器有限公司 | Double-motor driving system of pure electric vehicle |
| CN111251875A (en) * | 2018-11-30 | 2020-06-09 | 比亚迪股份有限公司 | Power driving system and vehicle with same |
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