CN209454544U - Compact dual-motor drive system - Google Patents
Compact dual-motor drive system Download PDFInfo
- Publication number
- CN209454544U CN209454544U CN201822002184.1U CN201822002184U CN209454544U CN 209454544 U CN209454544 U CN 209454544U CN 201822002184 U CN201822002184 U CN 201822002184U CN 209454544 U CN209454544 U CN 209454544U
- Authority
- CN
- China
- Prior art keywords
- gear
- drive system
- motor drive
- dual
- driving motor
- Prior art date
- 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.)
- Active
Links
Classifications
-
- 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
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model discloses a kind of compact dual-motor drive system, dual-motor drive system includes the first power plant module, the second power plant module and one-way clutch；First power plant module includes the first driving motor, the first input shaft and planetary gear train；Second power plant module includes the second driving motor, the second input shaft, main deceleration input gear and main deceleration output gear；Dual-motor drive system further includes differential mechanism；Including a kind of driving method applied in dual-motor drive system.The utility model can take into account the requirement such as power performance, max. speed, be simutaneously arranged that space is smaller, and space utilization rate is higher, car body weight is lighter, and dynamical system transmission efficiency is higher, and market application prospect is wide.
Description
Technical field
The utility model relates to motor driven systems design fields, and in particular to a kind of compact dual-motor drive system.
Background technique
Existing pure electric vehicle uses single motor power drive system substantially, small part using dual-motor drive system,
But existing dual-motor drive system function and structure are also relatively simple, dual-motor drive system uses single grade to subtract substantially
Fast case.
Since dual-motor drive system is using single grade of reduction gearbox, gear ratio is fixed.If necessary to improve dynamic property,
It then needs to increase speed ratio；If necessary to improve max. speed, then need to reduce speed ratio.Therefore single grade of reduction gearbox be difficult to take into account it is dynamic
The requirement such as power, efficiency, max. speed.Two grades of gearbox higher costs simultaneously, structure is complicated, and arrangement space is larger, occupies sky
Between.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of compact dual-motor drive system, uses
After the dual-motor drive system and driving method, the requirement such as power performance, max. speed can be taken into account, is simutaneously arranged space more
Small, space utilization rate is higher, and car body weight is lighter, and dynamical system transmission efficiency is higher.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of compact dual-motor drive system, including drive shell, the dual-motor drive system include the first power
Module, the second power plant module and one-way clutch；
First power plant module includes the first driving motor, the first input shaft and planetary gear train, the first driving electricity
Machine is connect with the first input shaft spline, and the planetary gear train includes gear ring, planetary gear, sun gear and planet carrier, the tooth
Circle is fixedly connected with the drive shell, and the sun gear is set on first input shaft；
Second power plant module includes that the second driving motor, the second input shaft, main deceleration input gear and main deceleration are defeated
Gear out, second driving motor are connect with the second input shaft spline, and the main deceleration input gear is set to described
On second input shaft, the main deceleration output gear is engaged with the main deceleration input gear；
The one-way clutch is equipped with outer ring and inner ring, and the outer ring of the one-way clutch and the planet carrier spline connect
It connects, the inner ring of the one-way clutch is connect with the second input shaft spline.
In order to solve its technical problem, used further technical solution is the utility model:
It further says, the dual-motor drive system further includes differential mechanism, the main deceleration output gear and the difference
Fast device is bolted to connection.
It further says, in the planetary gear train, the sun gear is input gear, and the planet carrier is output gear
The reduction ratio of wheel, the sun gear and the planet carrier is a:1.
It further says, the reduction ratio of the main deceleration input gear and the main deceleration output gear is b:1.
The beneficial effects of the utility model are:
One, the utility model has planetary gear train and one-way clutch, by cleverly configuration at compact Layout
Dual-motor drive system can greatly improve vehicle body space utilization rate, and car body weight is slimmer and more graceful, single when high vehicle speeds
It is opened naturally to clutch, without additional control system, structure is simple, and it is easy to manufacture, save development cost；
Two, first driving motor of the utility model and the second driving motor can by the reduction ratio of respective train and
The transformation output of torque is carried out according to the different operating status of vehicle, vehicle torque transmitting is flexible and efficient, improves vehicle driving effect
Rate；
Three, the utility model can take into account the requirement such as power performance, max. speed, the torque of the first driving motor and the
The torque of two driving motors is overlapped by the second input shaft and is transmitted to the differential commonly through main deceleration input gear
Device, vehicle peak torque can reach N1*a*b+N2*b, and then wheel of vehicle maximum power is driven to roll, and this torque is folded
Add mode can greatly promote power performance and max. speed, powerful.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of compact dual-motor drive system described in the utility model；
Fig. 2 is a kind of flow chart of Dual-motors Driving method described in the utility model；
Fig. 3 is a kind of one of torque transmitting schematic diagram of compact dual-motor drive system described in the utility model；
Fig. 4 is the two of the torque transmitting schematic diagram of a kind of compact dual-motor drive system described in the utility model；
Each section label is as follows in attached drawing:
Drive shell 1, the first driving motor 2, the first input shaft 21, planetary gear train 3, gear ring 31, planetary gear 32, sun gear
33, planet carrier 34, the second driving motor 4, the second input shaft 41, main deceleration input gear 5, main deceleration output gear 6, unidirectionally from
Clutch 7 and differential mechanism 8.
Specific embodiment
Illustrate specific embodiment of the present utility model below by way of particular specific embodiment, those skilled in the art can
The advantages of the utility model is understood by content disclosed in the present specification easily and effect.The utility model can also it is other not
Same mode is practiced, that is, under the scope of revealed without departing substantially from the utility model, can give different modification and change.
A kind of compact dual-motor drive system, as shown in Figure 1, including drive shell 1, the dual-motor drive system packet
Include the first power plant module, the second power plant module and one-way clutch 7；
First power plant module includes the first driving motor 2, the first input shaft 21 and planetary gear train 3, and described first drives
Dynamic motor is connect with the first input shaft spline, and the planetary gear train includes gear ring 31, planetary gear 32, sun gear 33 and planet
Frame 34, the gear ring are fixedly connected with the drive shell, and the sun gear is set on first input shaft；
Second power plant module includes that the second driving motor 4, the second input shaft 41, main deceleration input gear 5 and master subtract
Fast output gear 6, second driving motor are connect with the second input shaft spline, and the main deceleration input gear is set to
On second input shaft, the main deceleration output gear is engaged with the main deceleration input gear；
The one-way clutch is equipped with outer ring and inner ring, and the outer ring of the one-way clutch and the planet carrier spline connect
It connects, the inner ring of the one-way clutch is connect with the second input shaft spline.
The dual-motor drive system further includes differential mechanism 8, and the main deceleration output gear and the differential mechanism pass through spiral shell
Bolt is fixedly connected.
In the planetary gear train, the sun gear is input gear, and the planet carrier is output gear, the sun gear
Reduction ratio with the planet carrier is a:1.
The reduction ratio of the main deceleration input gear and the main deceleration output gear is b:1.
In the specific implementation, as shown in figs 2-4, comprising the following steps:
S1, vehicle start stage, first driving motor and second driving motor output torque simultaneously, described the
One driving motor transfers torque to the one-way clutch by the planetary gear train, and then the torque is transmitted to described
Second input shaft, torque transmitting signal is as shown in figure 3, arrow is directions of torque transfer in Fig. 3；
S2, vehicle maximum power sexual stage, the torque of the torque of first driving motor and second driving motor
It is overlapped by second input shaft and is transmitted to the differential mechanism commonly through the main deceleration input gear, and then driven
Dynamic wheel of vehicle maximum power rolls；
S3, vehicle high-speed stage, the actual speed of vehicle are greater than the restriction revolving speed of first driving motor, and described first
Output torque, the one-way clutch do not disconnect driving motor, the second driving motor output torque；
S4, vehicle falling-rate period, second driving motor carry out high revolving speed speed-raising, until second driving motor
When revolving speed reaches a times of first driving motor, the one-way clutch is smoothly combined, and repeatedly step S1 is transported at this time
Make.
In step s 2, the torque of first driving motor is N1, and the torque of second driving motor is N2, at this time
The peak torque that vehicle obtains is N3；
The peak torque N3 that vehicle obtains is calculated using following formula C,
N3=N1*a*b+N2*b formula C
In formula,
The peak torque that N3 --- vehicle obtains, unit are ox rice；
N1 --- the torque of the first driving motor, unit are ox rice；
The reduction ratio of a --- planetary gear train；
B --- the reduction ratio of main deceleration input gear and main deceleration output gear；
N2 --- the torque of the second driving motor, unit are ox rice.
In step s3, when the one-way clutch disconnects, the revolving speed and torque of first driving motor are all 0, institute
State the second driving motor output torque.
The course of work and working principle of the utility model are as follows:
In the utility model, planetary gear train is sun gear input, and gear ring is fixed, planet carrier output；If planetary gear train slows down
Than being b:1 for a:1, main deceleration input gear and main deceleration output gear reduction ratio；
In the vehicle start stage, two motors go out to turn round simultaneously, and the torque of the first driving motor is transmitted to by planetary gear train
One-way clutch, and then the second input shaft is transferred torque to, it is inputted with the torque of the second driving motor commonly through main deceleration
Gear is transmitted to differential mechanism, and then jack shaft, and road wheel end torque is b times of the first driving motor output torque at this time, then plus
A*b times of the output torque of upper second driving motor, vehicle obtain maximum dynamic property, and under the state, one-way clutch is combined
And transmit torque, the output revolving speed of the second driving motor be the first driving motor b times (set the torque of the first driving motor as
N1, the second torque for driving eastern motor is N2, and the peak torque that vehicle obtains is N3, then N3=N1*a*b+N2*b), torque output
Schematic diagram is as shown in Figure 3；
The case where running at a low speed in normal, the first driving motor and the second driving motor cooperate, and are maintained at higher
The operation of efficiency section achievees the effect that whole efficiency is promoted；
In the case that speed is promoted to a certain extent, when being greater than the higher speeds such as 100km/h, due to the first driving electricity
Machine revolving speed is limited, and the first driving motor is difficult to reach and maintain the revolving speed of 100km/h speed, at this point, only the second driving motor is defeated
Torque out, reduction ratio b, since one-way clutch disconnects at this time, the revolving speed and torque of the first driving motor are all 0, torque
Output signal is as shown in Figure 4；
If speed declines, the second driving motor carries out high revolving speed and draws high, and exports smaller torque, once revolving speed reaches first
At a times of driving motor, one-way clutch is smoothly combined, at this time the operating status of dual-motor drive system and starting stage one
It causes.
The above description is only the embodiments of the present invention, and not thereby the foregoing is merely the implementations of the utility model
Example, therefore it does not limit the scope of the patent of the utility model, made by using the description of the utility model and the drawings
Equivalent structure, be applied directly or indirectly in other relevant technical fields, similarly include the utility model patent protect
Protect range.
Claims (4)
1. a kind of compact dual-motor drive system, including drive shell (1), it is characterised in that: the dual-motor drive system
Including the first power plant module, the second power plant module and one-way clutch (7)；
First power plant module includes the first driving motor (2), the first input shaft (21) and planetary gear train (3), and described first
Driving motor is connect with the first input shaft spline, and the planetary gear train includes gear ring (31), planetary gear (32), sun gear
(33) it is fixedly connected with planet carrier (34), the gear ring with the drive shell, the sun gear is set to first input
On axis；
Second power plant module includes the second driving motor (4), the second input shaft (41), main deceleration input gear (5) and master
Deceleration output gear (6), second driving motor are connect with the second input shaft spline, and the main deceleration input gear is set
It is placed on second input shaft, the main deceleration output gear is engaged with the main deceleration input gear；
The one-way clutch is equipped with outer ring and inner ring, and the outer ring of the one-way clutch is connect with the planet carrier spline, institute
The inner ring for stating one-way clutch is connect with the second input shaft spline.
2. compact dual-motor drive system according to claim 1, it is characterised in that: the dual-motor drive system is also
Including differential mechanism (8), the main deceleration output gear is bolted to connection with the differential mechanism.
3. compact dual-motor drive system according to claim 1, it is characterised in that: in the planetary gear train, institute
Stating sun gear is input gear, and the planet carrier is output gear, and the reduction ratio of the sun gear and the planet carrier is a:1.
4. compact dual-motor drive system according to claim 1, it is characterised in that: the main deceleration input gear with
The reduction ratio of the main deceleration output gear is b:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822002184.1U CN209454544U (en) | 2018-11-30 | 2018-11-30 | Compact dual-motor drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822002184.1U CN209454544U (en) | 2018-11-30 | 2018-11-30 | Compact dual-motor drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209454544U true CN209454544U (en) | 2019-10-01 |
Family
ID=68039556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822002184.1U Active CN209454544U (en) | 2018-11-30 | 2018-11-30 | Compact dual-motor drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209454544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466298A (en) * | 2018-11-30 | 2019-03-15 | 浙江伊控动力系统有限公司 | Compact dual-motor drive system and driving method |
| CN112693306A (en) * | 2021-01-25 | 2021-04-23 | 重庆胜特佳机械有限公司 | Dual-motor driven multimode stepless speed change coupling output system and electric drive assembly |
| CN114435127A (en) * | 2022-03-09 | 2022-05-06 | 一汽解放汽车有限公司 | Two speed reduction system and new energy automobile that keep off of bi-motor |
-
2018
- 2018-11-30 CN CN201822002184.1U patent/CN209454544U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466298A (en) * | 2018-11-30 | 2019-03-15 | 浙江伊控动力系统有限公司 | Compact dual-motor drive system and driving method |
| CN112693306A (en) * | 2021-01-25 | 2021-04-23 | 重庆胜特佳机械有限公司 | Dual-motor driven multimode stepless speed change coupling output system and electric drive assembly |
| CN114435127A (en) * | 2022-03-09 | 2022-05-06 | 一汽解放汽车有限公司 | Two speed reduction system and new energy automobile that keep off of bi-motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208118929U (en) | A kind of hybrid power assembly with limp-home module | |
| CN109466298A (en) | Compact dual-motor drive system and driving method | |
| CN209454544U (en) | Compact dual-motor drive system | |
| CN107379957B (en) | Hybrid power system and control method thereof | |
| CN203093717U (en) | Hybrid power driving device | |
| CN106114191A (en) | A kind of automobile multimodal fusion dynamic coupling device | |
| CN107082014A (en) | A kind of automobile multimodal fusion dynamic coupling device | |
| CN103786564A (en) | Driving device of hybrid electric vehicle | |
| CN206690865U (en) | Hybrid power system and the vehicle using the dynamical system | |
| CN110001376A (en) | Realize the Vehicular hybrid power system of multi power source coupling | |
| CN109130831B (en) | Automobile multi-mode hybrid power coupling device | |
| CN109442014A (en) | Two speed transmission and method for changing speed for pure electric vehicle | |
| CN104442346B (en) | Double-rotor machine compound planetary row's formula hybrid power system | |
| CN107020943A (en) | A kind of variable speed hybrid power automobile power system | |
| CN110949111B (en) | Double-rotor motor and Ravigneaux planetary gear train serial-connection type automobile hybrid power system | |
| CN107020944A (en) | A kind of variable speed hybrid power automobile power assembly | |
| CN209444770U (en) | Two-gear transmission for pure electric vehicle | |
| CN204296444U (en) | Double-rotor machine compound planetary row formula hybrid power system | |
| CN109455075A (en) | A kind of dual-motor drive system and its application method | |
| CN208881575U (en) | A kind of vehicle and its planet row mixed power plant | |
| CN110525196A (en) | Series-Parallel HEV transmission system | |
| CN216684062U (en) | Shunting type hybrid power device for automobile | |
| CN109466294A (en) | Two gear coaxial power shift power drive systems and process for gear | |
| CN106740048B (en) | Power system of hybrid electric vehicle | |
| CN214564582U (en) | Hybrid power transmission device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220310 Address after: 201804 Room 201, unit 3, building 5, Lane 56, Antuo Road, Anting Town, Jiading District, Shanghai Patentee after: SHANGHAI YIKONG POWER SYSTEM Co.,Ltd. Address before: No. 1088, Xinxing Third Road, Pinghu Economic Development Zone, Jiaxing City, Zhejiang Province, 314201 Patentee before: ZHEJIANG YIKONG POWER SYSTEM Co.,Ltd. |
|
| TR01 | Transfer of patent right |