CN109334422A - A kind of double-motor power driving system - Google Patents
A kind of double-motor power driving system Download PDFInfo
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- CN109334422A CN109334422A CN201811155736.0A CN201811155736A CN109334422A CN 109334422 A CN109334422 A CN 109334422A CN 201811155736 A CN201811155736 A CN 201811155736A CN 109334422 A CN109334422 A CN 109334422A
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- Prior art keywords
- input
- gear
- motor
- jackshaft
- shaft
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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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- 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
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a kind of double-motor power driving systems, including first motor, the second motor, gear and electric machine controller；Gear includes shell, and the first input shaft, the second input shaft, jackshaft, the first input gear group, the second input gear group, train of reduction gears and the output precision of setting in the housing；First input shaft and the second input shaft are coaxial arrangement；Jackshaft is parallel to the first input shaft and the second input shaft；First input shaft is driven by the first input gear group and jackshaft；Second input shaft is driven by the second input gear group and jackshaft；Jackshaft is driven by train of reduction gears and output precision；Electric machine controller for controlling the revolving speed of first motor and the second motor respectively.Structure of the invention is ingenious, and bi-motor drives cooperation dual input shaft design, makes that different single motors may be selected in drive system or bi-motor is driven, can switch over to drive mode, realizes the optimization of drive system operational efficiency.
Description
Technical field
The present invention relates to new-energy automobile field, specifically a kind of double-motor power driving system.
Background technique
New-energy automobile especially pure electric automobile is grown rapidly in recent years.Pure electric automobile drive system configuration now
Substantially single motor combination individual gears speed ratio driving method is all used, this drive system configuration uses single reduction ratio, single
Driving motor, driving motor revolving speed and speed at a fixed proportion relationship, by the way of control motor speed variation come
Drive vehicle to change speed, disadvantage is obvious: for the power performance for guaranteeing vehicle, driving motor surplus power amount is big, is only climbing
The problem of big slope accelerates or can just use in short-term when suddenly accelerating the peak power handling of motor, brings at this time is the normal row of vehicle
When sailing, driving motor revolving speed is low compared with maximum speed, and torque is much smaller compared with maximum torque value under current rotating speed, thus when vehicle operation
It is chronically at the inefficient area of motor, is unable to fully utilize motor high efficient district；Due to its drive system configuration single motor and
Fixed single reduction ratio, also can not be efficient to meet drive system operation by adjusting modes such as power of motor, speed ratio sizes
It is required that.Therefore, it is necessary to design, a kind of transmission efficiency is high, can meet drive system by motor and the Optimized Matching of reduction ratio
The power configuration of efficient operation, the bi-motor for making motor high efficient district be fully used while meeting vehicle performance demand
Power-driven system.
Summary of the invention
The object of the present invention is to provide a kind of transmission efficiency height, drive can be met by motor and the Optimized Matching of reduction ratio
The power configuration of dynamic system high efficiency operation, so that motor high efficient district is fully used while meeting vehicle performance demand
Double-motor power driving system.
Realizing the technical solution of the object of the invention is: a kind of double-motor power driving system, including first motor, the second electricity
Machine, gear and electric machine controller；The gear includes shell, and setting the first input shaft in the housing, the
Two input shafts, jackshaft, the first input gear group, the second input gear group, train of reduction gears and output precision；Described first is defeated
Enter axis and the second input shaft for coaxial arrangement；The jackshaft is parallel to the first input shaft and the second input shaft；Described first is defeated
Enter axis to be driven by the first input gear group and jackshaft；Second input shaft is passed by the second input gear group and jackshaft
It is dynamic；The jackshaft is driven by train of reduction gears and output precision；The electric machine controller for controlling first motor respectively
With the revolving speed of the second motor.
The first motor and the second motor coaxle are arranged；The shaft of the first motor passes through the first spline and variable-speed motor
First input axis connection of structure；The shaft of second motor inputs axis connection by the second spline second.
First input gear group of the gear includes the first input driving gear and the first input driven gear；Institute
It states the first input driving gear and the first input driven gear is separately fixed on the first input shaft and jackshaft, and first is defeated
Enter driving gear to engage with the first input driven gear.
Second input gear group of the gear includes the second input driving gear and the second input driven gear；Institute
It states the second input driving gear and the second input driven gear is separately fixed on the second input shaft and jackshaft, and second is defeated
Enter driving gear to engage with the second input driven gear.
The speed ratio of first input gear group of the gear is identical as the speed ratio of the second input gear group.
The speed ratio of first input gear group of the gear is not identical as the speed ratio of the second input gear group.
The train of reduction gears of the gear includes active reduction gearing and involuntary speed reduction gear；The active reducing gear
Wheel is fixed on jackshaft；The involuntary speed reduction gear is engaged with active reduction gearing, and involuntary speed reduction gear drive exports
Component.
The output precision of the gear includes differential mechanism, left output shaft and right output shaft；The input of the differential mechanism
It holds and is fixed with the involuntary speed reduction gear of train of reduction gears；The left output shaft and right output shaft are connected to two of differential mechanism
On output end.
The gear further includes bearing assembly；The bearing assembly includes the first left bearing, the first right bearing, second
Left bearing, the second right bearing, third left bearing, third right bearing, the 4th left bearing and the 4th right bearing；First input shaft
In the housing by the first left bearing and the rotation connection of the first right bearing；Second input shaft passes through the second left bearing and second
Right bearing is rotatablely connected in the housing；The jackshaft is rotatablely connected in the housing by third left bearing and third right bearing；
The left output shaft and right output shaft pass through the 4th left bearing and the rotation connection of the 4th right bearing in the housing respectively.
Using above-mentioned technical proposal, the present invention has the following beneficial effects: (1) structure of the invention is ingenious, bi-motor
Cooperation dual input shaft design is driven, makes that different single motors may be selected in drive system or bi-motor is driven, was run in vehicle
Drive mode can be switched in journey, realize the optimization of drive system operational efficiency, meet vehicle performance demand, make electricity
Machine high efficient district is fully used, and is realized the optimization of drive system operational efficiency, can be integrally used as pre-driver or postposition
Driving, better adaptability.
(2) first motor of the invention and the second motor coaxle are arranged, and the shaft of first motor by the first spline and becomes
First input axis connection of fast mechanism, the shaft of the second motor input axis connection, easy to connect, kinetic energy by the second spline second
It transmits more stable.
(3) gear the first input gear group clever structure of the invention, by matching with the first input shaft and jackshaft
It closes, realizes the kinetic energy input of the folk prescription of first motor.
(4) the second input gear group of gear of the invention is realized by cooperating with the second input shaft and jackshaft
The kinetic energy of the folk prescription of second motor inputs.
Detailed description of the invention
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail, wherein
Fig. 1 is the structural diagram of the present invention.
The schematic diagram of kinetic energy transmitting when Fig. 2 is first motor driving of the invention.
The schematic diagram of kinetic energy transmitting when Fig. 3 is the second motor driven of the invention.
Fig. 4 is the schematic diagram of kinetic energy transmitting when first motor of the invention and the second motor drive simultaneously.
Label in attached drawing are as follows:
First motor 1, the second motor 2, gear 3, the first input shaft 3-1, the second input shaft 3-2, jackshaft 3-3,
First input driving gear 3-4, the first input driven gear 3-5, the second input driving gear 3-6, the second input driven gear
3-7, active reduction gearing 3-8, involuntary speed reduction gear 3-9, differential mechanism 3-10, left output shaft 3-11, right output shaft 3-12, first
Spline 4, the second spline 5.
Specific embodiment
(embodiment 1)
See Fig. 1 to Fig. 4, the double-motor power driving system of the present embodiment, including first motor 1, the second motor 2, speed change
Mechanism 3 and electric machine controller (not shown).Gear 3 includes shell, and the first input shaft of setting in the housing
3-1, the second input shaft 3-2, jackshaft 3-3, the first input gear group, the second input gear group, train of reduction gears, output precision
And bearing assembly.First input shaft 3-1 and the second input shaft 3-2 is coaxial arrangement.Jackshaft 3-3 is parallel to the first input shaft 3-
The 1 and second input shaft 3-2.First input shaft 3-1 is driven by the first input gear group and jackshaft 3-3.Second input shaft 3-2
It is driven by the second input gear group and jackshaft 3-3.Jackshaft 3-3 is driven by train of reduction gears and output precision.Motor
Controller for controlling the revolving speed of first motor 1 and the second motor 2 respectively.The speed ratio of first input gear group of gear 3
It is not identical as the speed ratio of the second input gear group.
First motor 1 and the second motor 2 are coaxially disposed.The shaft of first motor 1 passes through the first spline 4 and gear 3
The first input shaft 3-1 connection.The shaft of second motor 2 passes through the 5 second input shaft 3-2 connection of the second spline.
First input gear group of gear 3 includes the first input driving gear 3-4 and the first input driven gear 3-
5.First input driving gear 3-4 and the first input driven gear 3-5 are separately fixed at the first input shaft 3-1 and jackshaft 3-3
On, and the first input driving gear 3-4 is engaged with the first input driven gear 3-5.
Second input gear group of gear 3 includes the second input driving gear 3-6 and the second input driven gear 3-
7.Second input driving gear 3-6 and the second input driven gear 3-7 are separately fixed at the second input shaft 3-2 and jackshaft 3-3
On, and the second input driving gear 3-6 is engaged with the second input driven gear 3-7.
The train of reduction gears of gear 3 includes active reduction gearing 3-8 and involuntary speed reduction gear 3-9.Active reducing gear
Wheel 3-8 is fixed on jackshaft 3-3.Involuntary speed reduction gear 3-9 is engaged with active reduction gearing 3-8, and involuntary speed reduction gear
3-9 is driven output precision.
The output precision of gear 3 includes differential mechanism 3-10, left output shaft 3-11 and right output shaft 3-12.Differential mechanism 3-
10 input terminal and the involuntary speed reduction gear 3-9 of train of reduction gears are fixed.Left output shaft 3-11 and right output shaft 3-12 connect respectively
It connects on two output ends of differential mechanism 3-10.
Bearing assembly includes the first left bearing, the first right bearing, the second left bearing, the second right bearing, third left bearing, the
Three right bearings, the 4th left bearing and the 4th right bearing.First input shaft 3-1 is connected by the first left bearing and the rotation of the first right bearing
It connects in the housing.Second input shaft 3-2 is rotatablely connected in the housing by the second left bearing and the second right bearing.Jackshaft 3-3
In the housing by third left bearing and the rotation connection of third right bearing.Left output shaft 3-11 and right output shaft 3-12 pass through respectively
4th left bearing and the rotation connection of the 4th right bearing are in the housing.
See Fig. 2, under single motor drive mode when the single driving of first motor 1, the second motor 2 does not work, as spare, first
Motor 1 drives the first input shaft 3-1 rotation, and the first input shaft 3-1 is passive by the first input driving gear 3-4 and the first input
Gear 3-5 jack shaft 3-3 rotation, jackshaft 3-3 Drive differential 3-10, differential mechanism 3-10 by left output shaft 3-11 and
Kinetic energy is transferred on two wheels by right output shaft 3-12 respectively.
See Fig. 3, under single motor drive mode when the single driving of the second motor 2, first motor 1 does not work, as spare, second
Motor 2 drives the second input shaft 3-2 rotation, and the second input shaft 3-2 is passive by the second input driving gear 3-6 and the second input
Gear 3-7 jack shaft 3-3 rotation, jackshaft 3-3 Drive differential 3-10, differential mechanism 3-10 by left output shaft 3-11 and
Kinetic energy is transferred on two wheels by right output shaft 3-12 respectively.
See that Fig. 4, Dual-motors Driving mode, first motor 1 and the second motor 2 are worked at the same time, first motor 1 and the second motor
2 respectively drive the first input shaft 3-1 and the second input shaft 3-2 rotation, and the first input shaft 3-1 passes through the first input driving gear 3-
4 and first input driven gear 3-5 jack shaft 3-3 rotation, and the second input shaft 3-2 passes through the second input driving gear 3-6
With the second input driven gear 3-7 jack shaft 3-3 rotation, jackshaft 3-3 Drive differential 3-10, differential mechanism 3-10 pass through
Kinetic energy is transferred on two wheels by left output shaft 3-11 and right output shaft 3-12 respectively.
(embodiment 2)
The present embodiment is substantially the same manner as Example 1, the difference is that:
The speed ratio of first input gear group of gear 3 is identical as the speed ratio of the second input gear group.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (9)
1. a kind of double-motor power driving system, it is characterised in that: including first motor (1), the second motor (2), gear
(3) and electric machine controller；The gear (3) includes shell, and setting the first input shaft (3-1) in the housing, the
Two input shafts (3-2), jackshaft (3-3), the first input gear group, the second input gear group, train of reduction gears and output precision；
First input shaft (3-1) and the second input shaft (3-2) are coaxial arrangement；The jackshaft (3-3) is parallel to the first input
Axis (3-1) and the second input shaft (3-2)；First input shaft (3-1) is passed by the first input gear group and jackshaft (3-3)
It is dynamic；Second input shaft (3-2) is driven by the second input gear group and jackshaft (3-3)；The jackshaft (3-3) passes through
Train of reduction gears and output precision are driven；The electric machine controller for controlling first motor (1) and the second motor (2) respectively
Revolving speed.
2. a kind of double-motor power driving system according to claim 1, it is characterised in that: the first motor (1) with
Second motor (2) coaxial arrangement；The shaft of the first motor (1) is first defeated by the first spline (4) and gear (3)
Enter axis (3-1) connection；The shaft of second motor (2) is connected by (5) second input shaft (3-2) of the second spline.
3. a kind of double-motor power driving system according to claim 1, it is characterised in that: the gear (3)
First input gear group includes the first input driving gear (3-4) and the first input driven gear (3-5)；The first input master
Moving gear (3-4) and the first input driven gear (3-5) are separately fixed on the first input shaft (3-1) and jackshaft (3-3), and
And first input driving gear (3-4) with first input driven gear (3-5) engage.
4. a kind of double-motor power driving system according to claim 1, it is characterised in that: the gear (3)
Second input gear group includes the second input driving gear (3-6) and the second input driven gear (3-7)；The second input master
Moving gear (3-6) and the second input driven gear (3-7) are separately fixed on the second input shaft (3-2) and jackshaft (3-3), and
And second input driving gear (3-6) with second input driven gear (3-7) engage.
5. a kind of double-motor power driving system according to claim 1, it is characterised in that: the gear (3)
The speed ratio of first input gear group is identical as the speed ratio of the second input gear group.
6. a kind of double-motor power driving system according to claim 1, it is characterised in that: the gear (3)
The speed ratio of first input gear group is not identical as the speed ratio of the second input gear group.
7. a kind of double-motor power driving system according to claim 1, it is characterised in that: the gear (3)
Train of reduction gears includes active reduction gearing (3-8) and involuntary speed reduction gear (3-9)；The active reduction gearing (3-8) is fixed
On jackshaft (3-3)；The involuntary speed reduction gear (3-9) is engaged with active reduction gearing (3-8), and involuntary speed reduction gear
(3-9) is driven output precision.
8. a kind of double-motor power driving system according to claim 7, it is characterised in that: the gear (3)
Output precision includes differential mechanism (3-10), left output shaft (3-11) and right output shaft (3-12)；The differential mechanism (3-10) it is defeated
The involuntary speed reduction gear (3-9) for entering end and train of reduction gears is fixed；The left output shaft (3-11) and right output shaft (3-12) point
It is not connected on two output ends of differential mechanism (3-10).
9. a kind of double-motor power driving system according to claim 7, it is characterised in that: the gear (3) is also
Including bearing assembly；The bearing assembly includes the first left bearing, the first right bearing, the second left bearing, the second right bearing, third
Left bearing, third right bearing, the 4th left bearing and the 4th right bearing；First input shaft (3-1) by the first left bearing and
First right bearing is rotatablely connected in the housing；Second input shaft (3-2) is rotated by the second left bearing and the second right bearing
Connection is in the housing；The jackshaft (3-3) is rotatablely connected in the housing by third left bearing and third right bearing；The left side
Output shaft (3-11) and right output shaft (3-12) are rotatablely connected in the housing by the 4th left bearing and the 4th right bearing respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811155736.0A CN109334422A (en) | 2018-09-30 | 2018-09-30 | A kind of double-motor power driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811155736.0A CN109334422A (en) | 2018-09-30 | 2018-09-30 | A kind of double-motor power driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109334422A true CN109334422A (en) | 2019-02-15 |
Family
ID=65308333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811155736.0A Pending CN109334422A (en) | 2018-09-30 | 2018-09-30 | A kind of double-motor power driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109334422A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664740A (en) * | 2019-03-01 | 2019-04-23 | 弘允新能源（上海）有限公司 | A kind of dual-motor drive system |
| CN109798343A (en) * | 2019-03-19 | 2019-05-24 | 赣州经纬科技股份有限公司 | A kind of bi-motor pure electric vehicle speed reducer assembly |
| WO2023284667A1 (en) * | 2021-07-13 | 2023-01-19 | 中国第一汽车股份有限公司 | Electric drive assembly and electric vehicle |
-
2018
- 2018-09-30 CN CN201811155736.0A patent/CN109334422A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664740A (en) * | 2019-03-01 | 2019-04-23 | 弘允新能源（上海）有限公司 | A kind of dual-motor drive system |
| CN109798343A (en) * | 2019-03-19 | 2019-05-24 | 赣州经纬科技股份有限公司 | A kind of bi-motor pure electric vehicle speed reducer assembly |
| WO2023284667A1 (en) * | 2021-07-13 | 2023-01-19 | 中国第一汽车股份有限公司 | Electric drive assembly and electric vehicle |
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