CN109899467A - Two grades of electricity of double rank planetary gear sets drive speed changer - Google Patents
Two grades of electricity of double rank planetary gear sets drive speed changer Download PDFInfo
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- CN109899467A CN109899467A CN201910221232.2A CN201910221232A CN109899467A CN 109899467 A CN109899467 A CN 109899467A CN 201910221232 A CN201910221232 A CN 201910221232A CN 109899467 A CN109899467 A CN 109899467A
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- China
- Prior art keywords
- planetary gear
- driving motor
- gear
- sun gear
- double rank
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Abstract
A kind of two grades of electricity drive speed changers of double rank planetary gear sets, are related to technical field of transmission machinery, the solution is to the big technical problems of existing shifting of transmission irregularity and kinetic energy rejection.The speed changer includes gearbox body, driving motor, train of reduction gears, double rank planetary gear sets, and double rank planetary gear sets include planet carrier, ring gear and the different sun gear of two diameters；The planet carrier is equipped with two groups of planetary gears, and the ring gear is fixed on gearbox body, and ring gear is engaged with one group of planetary gear therein；Two sun gears engage respectively with two groups of planetary gears；There are two the driving motors, and the output shaft of one of driving motor couples the first sun gear, and the output shaft of another driving motor couples the second sun gear；Planet carrier in double rank planetary gear sets couples train of reduction gears, passes through train of reduction gears output power.Speed changer provided by the invention is suitable for electronic or mixed electrical automobile.
Description
Technical field
The present invention relates to gearing technologies, and the skill of speed changer is driven more particularly to a kind of two grades of electricity of double rank planetary gear sets
Art.
Background technique
It is both provided with clutch in existing mixed dynamic or pure electric vehicle speed changer, realizes that gear shift is grasped by manipulation clutch
Make.It is this clutch come by way of realizing gear-change operation, it is less smooth in gear shift, be easy because between gear rotational speed difference due to
Pause and transition in rhythm or melody sense is generated, and shift control strategy is also relatively complicated, gear shift cost of implementation is high, and kinetic energy rejection is also more.
Summary of the invention
For above-mentioned defect existing in the prior art, it is flat that technical problem to be solved by the invention is to provide a kind of gear shift
It is suitable, and gear shift cost of implementation is low, the few two grades of electricity of double rank planetary gear sets of kinetic energy rejection drive speed changer.
In order to solve the above-mentioned technical problem, two grades of electricity of a kind of double rank planetary gear sets provided by the present invention drive speed changer, packet
Include gearbox body, driving motor, it is characterised in that:
The gearbox body is equipped with double rank planetary gear sets, and double rank planetary gear sets include planet carrier, ring gear and two
A sun gear；The planet carrier is equipped with two groups and coaxially lays and the different planetary gear of the number of teeth, the ring gear are fixed on speed change
On cabinet, and ring gear is engaged with one group of planetary gear therein；The number of teeth or diameter of two sun gears are different, one of those
Sun gear is the first sun gear, another sun gear is the second sun gear, and the first sun gear is engaged with one group of planetary gear therein,
Second sun gear is engaged with another group of planetary gear；
There are two the driving motors, and one of driving motor is the first driving motor, another driving motor is second
Driving motor；
The output shaft of first driving motor couples the first sun gear, for driving the rotation of the first sun gear, the second driving electricity
The output shaft of machine couples the second sun gear, for driving the rotation of the second sun gear；
The gearbox body is equipped with train of reduction gears, and the planet carrier in double rank planetary gear sets couples train of reduction gears, passes through
Train of reduction gears output power.
It further, further include differential mechanism, train of reduction gears is connected to differential mechanism by transmission parts, defeated by differential mechanism
Power out.
Further, rated output torque of the rated output torque of the first driving motor less than the second driving motor.
Two grades of electricity of double rank planetary gear sets provided by the invention drive speed changer, and two driving motors can work in different shelves
Position only needs to control that two driving motors are in due course opens, stops since two groups of planet gear transmissions are than different, without any
Traditional clutch shift mechanism, can be realized gear-change operation.This gear changing mode manipulation is convenient, fast, and does not have clutch
Pause and transition in rhythm or melody sense of the device in shift, gear shift is very smooth, and shift mechanism and shift control strategy are also than traditional clutch gear-shift side
Formula is simple, therefore gear shift cost of implementation is also corresponding lower, and kinetic energy rejection is also relatively fewer.
Detailed description of the invention
Fig. 1 is that two grades of electricity of double rank planetary gear sets of the embodiment of the present invention drive the structural schematic diagram of speed changer.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with Detailed description of the invention, but the present embodiment is not used to limit
The system present invention, all that protection scope of the present invention should all be included in using similar structure and its similar variation of the invention, present invention
In pause mark indicate the relationship of sum, the English alphabet in the present invention is case sensitive.
As shown in Figure 1, a kind of two grades of electricity drive speed changers of double rank planetary gear sets provided by the embodiment of the present invention, including speed change
Cabinet x1, driving motor, it is characterised in that:
The gearbox body x1 is equipped with double rank planetary gear sets, and double rank planetary gear sets include planet carrier j1, ring gear
R1 and two sun gear s1, s2；The planet carrier j1 is equipped with two groups and coaxially lays and different planetary gear p1, the p2 of the number of teeth, institute
It states ring gear r1 to be fixed on gearbox body x1, and ring gear r1 is engaged with one group of planetary gear p1 therein；Two sun gears
The diameter of s1, s2 are different, and one of sun gear is the first sun gear s1, another sun gear is the second sun gear s2, the
One sun gear s1 is engaged with one group of planetary gear p1 therein, and the second sun gear s2 is engaged with another group of planetary gear p2；
There are two the driving motors, and one of driving motor is the first driving motor t1, another driving motor is the
Two driving motor t2；
The output shaft of the first driving motor t1 couples the first sun gear s1, and for driving the rotation of the first sun gear, second is driven
The output shaft of dynamic motor t2 couples the second sun gear s2, for driving the rotation of the second sun gear；
The gearbox body x1 is equipped with train of reduction gears d1, and the planet carrier j1 in double rank planetary gear sets couples train of reduction gears
D1 can satisfy the requirement of output torque using train of reduction gears by train of reduction gears output power.
The embodiment of the invention also includes differential mechanism d2, train of reduction gears d1 is connected to differential mechanism d2 by transmission parts, leads to
Cross differential mechanism output power.
In the embodiment of the present invention, diameter of the diameter less than the second sun gear s2 of the first sun gear s1, the other realities of the present invention
Apply in example, two sun gears can also and the number of teeth identical with diameter it is different.
In the embodiment of the present invention, the rated output torque of the first driving motor t1 is specified defeated less than the second driving motor t2
Torque out.
The embodiment of the present invention, suitable for electronic or mixed electrical automobile, it can be achieved that two grades export, its working principles are as follows:
First grade of suitable high torque (HT) ratio, at first grade by the second driving motor t2 output power, the first driving motor under this operating condition
T1 is out of service, and the second driving motor t2 starts, and the second driving motor t2 drives the second sun gear s2 rotation at this time, due to interior
Gear ring r1 is fixed；Therefore the output power of the second driving motor t2 is through the second sun gear s2, second group of planetary gear p2, first group of row
Star-wheel p1, planet carrier j1, train of reduction gears d1 are transferred to differential mechanism d2, pass through differential mechanism d2 output power.
Second gear is suitble to low torque ratio, in second gear by the first driving motor t1 output power, the first driving under this operating condition
Motor t1 starting, and the second driving motor t2 is out of service, the first driving motor t1 drives the first sun gear s1 rotation at this time, by
It is fixed in ring gear r1, therefore the output power of the first driving motor t1 is through the first sun gear s1, first group of planetary gear p1, planet
Frame j1, train of reduction gears d1 are transferred to differential mechanism d2, pass through differential mechanism d2 output power.
When vehicle driving needs high torque (for example upward slope), control strategy can be used to start simultaneously with different revolving speeds
First driving motor t1, the second driving motor t2, two driving motors respectively drive two sun gears rotations under this operating condition, and two
The output power of driving motor is coupled on planet carrier j1, then is transferred to differential mechanism d2 through train of reduction gears d1, passes through differential mechanism
D2 output power.
Claims (3)
1. a kind of two grades of electricity of double rank planetary gear sets drive speed changer, including gearbox body, driving motor, it is characterised in that:
The gearbox body is equipped with double rank planetary gear sets, and double rank planetary gear sets include planet carrier, ring gear and two
A sun gear；The planet carrier is equipped with two groups and coaxially lays and the different planetary gear of the number of teeth, the ring gear are fixed on speed change
On cabinet, and ring gear is engaged with one group of planetary gear therein；The number of teeth or diameter of two sun gears are different, one of those
Sun gear is the first sun gear, another sun gear is the second sun gear, and the first sun gear is engaged with one group of planetary gear therein,
Second sun gear is engaged with another group of planetary gear；
There are two the driving motors, and one of driving motor is the first driving motor, another driving motor is second
Driving motor；
The output shaft of first driving motor couples the first sun gear, for driving the rotation of the first sun gear, the second driving electricity
The output shaft of machine couples the second sun gear, for driving the rotation of the second sun gear；
The gearbox body is equipped with train of reduction gears, and the planet carrier in double rank planetary gear sets couples train of reduction gears, passes through
Train of reduction gears output power.
2. two grades of electricity of double rank planetary gear sets according to claim 1 drive speed changer, it is characterised in that: it further include differential mechanism,
Train of reduction gears is connected to differential mechanism by transmission parts, passes through differential mechanism output power.
3. two grades of electricity of double rank planetary gear sets according to claim 1 drive speed changer, it is characterised in that: the first driving motor
Rated output torque of the rated output torque less than the second driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221232.2A CN109899467A (en) | 2019-03-22 | 2019-03-22 | Two grades of electricity of double rank planetary gear sets drive speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221232.2A CN109899467A (en) | 2019-03-22 | 2019-03-22 | Two grades of electricity of double rank planetary gear sets drive speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109899467A true CN109899467A (en) | 2019-06-18 |
Family
ID=66952952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910221232.2A Pending CN109899467A (en) | 2019-03-22 | 2019-03-22 | Two grades of electricity of double rank planetary gear sets drive speed changer |
Country Status (1)
| Country | Link |
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| CN (1) | CN109899467A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070249456A1 (en) * | 2004-05-14 | 2007-10-25 | Audi Ag | Drive Device for Motor Vehicles |
| CN203995679U (en) * | 2014-07-14 | 2014-12-10 | 天津天海同步科技股份有限公司 | Double-motor planet row change-speed box and there is its dynamic assembly |
| JP2018048686A (en) * | 2016-09-21 | 2018-03-29 | Ntn株式会社 | Vehicle driving device |
| CN108278337A (en) * | 2018-03-01 | 2018-07-13 | 陈扬珑 | Double infinitely continuous shift transmissions of rank planetary gear |
| CN109131307A (en) * | 2018-08-08 | 2019-01-04 | 同济大学 | The H ∞ robust control method of hybrid power shunting hybrid power system pattern switching |
| CN209892698U (en) * | 2019-03-22 | 2020-01-03 | 陈扬珑 | Two-gear electrically-driven transmission with double-step planetary wheel set |
-
2019
- 2019-03-22 CN CN201910221232.2A patent/CN109899467A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070249456A1 (en) * | 2004-05-14 | 2007-10-25 | Audi Ag | Drive Device for Motor Vehicles |
| CN203995679U (en) * | 2014-07-14 | 2014-12-10 | 天津天海同步科技股份有限公司 | Double-motor planet row change-speed box and there is its dynamic assembly |
| JP2018048686A (en) * | 2016-09-21 | 2018-03-29 | Ntn株式会社 | Vehicle driving device |
| CN108278337A (en) * | 2018-03-01 | 2018-07-13 | 陈扬珑 | Double infinitely continuous shift transmissions of rank planetary gear |
| CN109131307A (en) * | 2018-08-08 | 2019-01-04 | 同济大学 | The H ∞ robust control method of hybrid power shunting hybrid power system pattern switching |
| CN209892698U (en) * | 2019-03-22 | 2020-01-03 | 陈扬珑 | Two-gear electrically-driven transmission with double-step planetary wheel set |
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