CN205890525U - Bi -motor power device and electric automobile are arranged to single file star - Google Patents
Bi -motor power device and electric automobile are arranged to single file star Download PDFInfo
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- CN205890525U CN205890525U CN201620328228.8U CN201620328228U CN205890525U CN 205890525 U CN205890525 U CN 205890525U CN 201620328228 U CN201620328228 U CN 201620328228U CN 205890525 U CN205890525 U CN 205890525U
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- motor
- power
- output shaft
- single planetary
- planetary row
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Abstract
The utility model relates to a bi -motor power device and electric automobile are arranged to single file star, power device arranges power system including the single file star that has two inputs, an output, and the stream input end is first input end and second input, and the first input end is connected with the output shaft transmission of first motor, and the second input is connected with the output shaft transmission of second motor, its characterized in that: be equipped with on the output shaft of at least one motor in first motor and the second motor and be used for carrying out the locking in order to avoid it at another one motor output power with the drive to it pivoted locking means is followed to the output during operation, still provide and has used above -mentioned bi -motor power device's electric automobile is arranged to the single file star. The utility model discloses can be when first motor or second motor work independently, a motor in addition is by the locking means locking to can effectually avoid improving energy utilization because of follow -up or energy consumption stifled then that produce.
Description
Technical field
This utility model is related to new forms of energy and field of energy-saving technology, more particularly, to a kind of double electricity being applied to pure electric automobile
Machine-single planetary row power set.
Background technology
The power consumption standard more and more higher of pure electric vehicle at present, in order to gradually reduce power consumption, different manufacturers are using different
Type of drive.
Current pure electric automobile type of drive has two kinds of forms: one kind is motor direct-drive, and one kind is that motor passes through
Gear drives.Former divides two kinds of structures again: one kind is single motor direct-drive, requires to meet car load dynamic property,
Motor is made volume and weight than larger it is impossible to meet car load lightweight and arrangement requirement, and the vehicle of different weight in working order,
Need the different money motor of exploitation, cost does not have advantage it is impossible to take into account the economy under car load difference speed and loading condition；A kind of
It is that bi-motor passes through middle plus clutch and realizes direct drive, the size of bi-motor coaxial configuration is than larger it is impossible to meet car load
Hardware and software platform demand, and when single Motor drive, one of motor is servo-actuated, and the reluctance torque of follow-up motor virtually increases
Open circuit loss, increases car load power consumption；Latter has two kinds of structures: a kind of is the gear that single motor adds constant velocity-ratio, this
Plant the size that structure reduces motor, cost has some superiority, but cannot take into account under car load difference speed and loading condition
Economy, different automobile types still need the different motors of exploitation or change speed gear box；One kind is that single motor adds multi-gear gear-case, this
Structure has gearshift, self shifter to be realized, and the control of gearshift is more complicated.
Bi-motor single planetary row power is disclosed in the Chinese utility model patent of Application No. 201510088739.7
Drive system, the first motor of this system is connected with sun gear, and the second motor is connected with planet carrier, is exported to car load by gear ring
Power, but when the first motor or the second motor work independently, need one of motor rotation blockage, controller is virtually
Increase and control loss, when two motors simultaneously drive, the power of the second motor can not export on car load completely, by the first electricity
A part offset by machine, produces energy loss, and the ability of the second motor can not be fully used.
Technical scheme disclosed above can effectively reduce device volume, improves space availability ratio and electric efficiency, so
And when the first motor or the second motor work independently, needing one of motor rotation blockage, controller virtually increases control
System loss, because planet carrier is as mediation member, when carrying out locking to mediation member, root in above-mentioned drive system
Originally cannot be carried out externally exporting, meanwhile, when two motors simultaneously drive, because planet carrier is as due to mediation member,
The power of two motors can not export on car load completely, is offset a part by the first motor, produces energy loss, and the second electricity
The ability of machine can not be fully used.
Utility model content
The purpose of this utility model is to provide a kind of bi-motor-single planetary row power set and its driving method, in order to solve
Certainly in prior art, the motor of bi-motor single planetary row device is servo-actuated or stall during produce the technical problem of energy loss.
For achieving the above object, scheme of the present utility model includes:
A kind of bi-motor-single planetary row power set, including the first motor, the second motor and single planetary row dynamical system, should
Single planetary row dynamical system includes the output of sun gear and described second motor being in transmission connection with the output shaft of described first motor
Gear ring and the planet carrier as outfan that through-drive connects, the described output shaft of the first motor and described second motor
The locking system that output shaft to corresponding motor carries out independent locking is respectively provided with output shaft.
Further, the first motor, single planetary row dynamical system, the second motor are sequentially arranged, on planet carrier along the longitudinal direction
Coaxial transmission is connected with power transmission shaft, and power transmission shaft prolongs towards the side of the first motor or the second motor along the longitudinal direction
Stretch, the first motor of side corresponding with power transmission shaft bearing of trend or the output shaft of the second motor are hollow axle, this hollow axle
Concentric gap suit corresponding with described power transmission shaft.
Further, bi-motor-single planetary row power set include Double Motor Control device and electrical source of power, and electrical source of power is even
Connect Double Motor Control device, Double Motor Control device connects the first motor and the second motor.
Further, two locking systems are lock-up clutch.
Preferably, the range of speeds of the first motor is 0～3500rpm, and torque range is 0-1200nm；Described second motor
The range of speeds be 0～7000rpm, torque range be 0-800nm.
Additionally provide a kind of electric automobile, the bi-motor-single planetary row including drive axle with for driving described drive axle
Power set, this bi-motor-single planetary row power set include the first motor, the second motor and single planetary row dynamical system, and this is single
Planet row dynamical system includes the output shaft of sun gear and described second motor being in transmission connection with the output shaft of described first motor
The gear ring being in transmission connection and the planet carrier as outfan, planet carrier is in transmission connection with described drive axle by power transmission shaft,
It is respectively provided with the output shaft to corresponding motor on the output shaft of the described output shaft of the first motor and described second motor
Carry out the locking system of independent locking.
Further, the first described motor, single planetary row dynamical system, the second motor are sequentially arranged, OK along the longitudinal direction
In carrier, coaxial transmission is connected with power output shaft, and power output shaft is connected with intermediate propeller shaft, and intermediate propeller shaft drives even
Connect the drive axle of electric automobile, described power output shaft and intermediate propeller shaft constitute described power transmission shaft, and the second motor is even
It is connected to hollow axle, power output shaft is set in described hollow axle, and the first motor is provided with the first locking system, with the second motor
Connected hollow axle is provided with the second locking system.
Further, bi-motor-single planetary row power set include Double Motor Control device and electrical source of power, and electrical source of power is even
Connect Double Motor Control device, Double Motor Control device connects the first motor and the second motor.
Further, two locking systems are lock-up clutch.
Preferably, the range of speeds of the first motor is 0～3500rpm, and torque range is 0-1200nm；Described second motor
The range of speeds be 0～7000rpm, torque range be 0-800nm.
A kind of bi-motor-single planetary row power set that this utility model provides, are capable of the first motor and the second electricity
Machine is operated alone, when the first motor or the second motor work independently, a motor in addition by locking system locking, thus
The energy expenditure producing because of servo-actuated or stall can effectively be avoided, improve capacity usage ratio.
Meanwhile, using the low-speed big high-efficient characteristic of the first motor, realize car load low pressure economy and dynamic property, utilize
The little moment of torsion high-efficient characteristic of second motor high speed, realizes car load high speed economy and dynamic property；
Simultaneously drive the big climbable gradient realizing car load by the first motor and the second motor, pass through to adjust planet row simultaneously
K value, can meet the demand of different automobile types, realize hardware and software platform and the generalization of dynamical system.
Brief description
Fig. 1 is bi-motor-single planetary row powerplant configuration schematic diagram.
Specific embodiment
The utility model is described in more detail below in conjunction with the accompanying drawings.
As shown in figure 1, being a kind of bi-motor-single planetary row power set being applied to pure electric automobile of this utility model
Structural representation, as can be seen from Figure 1 include the first motor 1, the second motor 2, the first lock-up clutch 3, the second locking from
Clutch 4, sun gear 5, planetary gear 6, gear ring 7, planet carrier 8, power output shaft 9, intermediate propeller shaft 10, drive axle 11, wheel 12,
Double Motor Control device 13 and electrical source of power 14.The solid shafting of the first motor 1 is provided with the first lock that can carry out locking and release
Only clutch 3, the solid shafting of the first motor 1 is connected with gear ring 7 coaxial transmission, and the hollow axle of the second motor 2 is provided with and can carry out
Locking and the second lock-up clutch 4 of release, the hollow axle of the second motor 2 is connected with sun gear 5 coaxial transmission, and planet carrier is made
It is in transmission connection for outfan is corresponding with power output shaft 9, sun gear 5, planetary gear 6 and gear ring 7 are entered by corresponding engaging tooth
Row engagement.
Bi-motor-single planetary row dynamical system is arranged between the first motor 1 and the second motor 2, is connected with planet carrier 8
Power output shaft 9 passes through the hollow axle of the second motor 2, and power output shaft 9 is connected with intermediate propeller shaft 10 coaxial transmission, finally leads to
Bridge 11 of overdriving transfers power on wheel 12.Double Motor Control device 13 control the electronic of the first motor 1 and the second motor 2 and
Generate electricity.Electrical source of power provides driving energy to Double Motor Control device: when car load feedback energy, Double Motor Control device phase power
Power source charges.
As other embodiment, it would however also be possible to employ two independent electric machine controllers are respectively to the first motor 1 and second
Motor 2 is controlled.
Wherein, the range of speeds of the first motor is: 0-3500rpm, torque range: 0-1200nm.The rotating speed of the second motor
Scope is: 0-7000rpm, torque range: 0-800nm.
In above-described embodiment, locking system adopts lock-up clutch, and in other embodiments, locking system may also be employed Shen
Please number for 201510088739.7 Chinese utility model patent provided in brake.
It should be noted that the effect of locking system is in the application, in bi-motor-single planetary row power set,
Individually during the work of some motor, an other motor of locking, thus avoid not work drive motor retinue work drive motor to rotate and
Produce energy loss, to improve capacity usage ratio.Rather than, only merely to realize to bi-motor-single planetary row power
The braking of the device that device is driven.
The structure of above-mentioned bi-motor-single planetary row power set a kind of to this utility model is made that detailed description, below
Its working method is described in detail.Bi-motor of the present utility model-single planetary row power set are applying to pure electronic vapour
When on car, three kinds of mode of operations are had according to needing in actual motion, be respectively suitable for the different speeds of service: be applied to whole
First motor of car low-speed motion works independently pattern, the Working mould that simultaneously works of bi-motor being applied to the motion of car load middling speed
Formula, the second motor being applied to car load high-speed motion work independently pattern.
1. the first motor works independently pattern:
Under this mode of operation, the first lock-up clutch 3 discharges so that the first motor 1 can be freely-movable；And the second lock
Only clutch 4 then locking, is allowed to move, now car load is driven by the first motor 1, then power output shaft 9 is planet carrier 8
Rotating speed be:
Output shaft, that is, the moment of torsion of planet carrier be:
In formula, tcFor the torque on planet carrier, i.e. torque on power transmission shaft；trFor the torque on gear ring, i.e. the first motor
Torque on solid shafting.
Now, the second motor does not work, and car load, by the first Motor drive, drives car load to carry out low-speed motion: when car load is low
When (less than 25 kilometers) of speed is advanced, the first motor forward drive；Enable the first car load low-speed forward；When needing feedback energy
When, then the first motor is positive generates electricity, and is charged to electrical source of power by Double Motor Control device；And when car load needs reversing, then the
One motor reverse drive is so that car load can travel backward.
2. the second motor works independently pattern:
Under this mode of operation, the first lock-up clutch locking, so that the first motor is not worked；And the second lock-up clutch is released
Put so that the second motor can be freely-movable, start working, car load by the second Motor drive, now output shaft, i.e. planet carrier
Rotating speed is:
Output shaft, that is, the moment of torsion of planet carrier be:
In formula, tcFor the torque on planet carrier, i.e. torque on power transmission shaft；tsFor the torque on sun gear, i.e. the second electricity
Torque on machine hollow axle.
The mode of operation of the second motor is used for driving car load to carry out high-speed motion: when car load needs at a high speed (50-70 kilometer)
During advance, the second motor forward drive is so that the first car load being capable of low-speed forward；When car load needs high speed feedback energy, the
Two motors are positive to generate electricity, and is charged to electrical source of power by Double Motor Control device, especially when vehicle carries out slope climbing movement, second
Motor forward drive.
3. the mode of operation that bi-motor works simultaneously:
First lock-up clutch release, the second lock-up clutch discharges, output shaft, and that is, the rotating speed of planet carrier is:
Output shaft, that is, the moment of torsion of planet carrier be: tc=tr+ts
In formula, tcFor the torque on planet carrier, i.e. torque on power transmission shaft；trFor the torque on gear ring, i.e. the first motor
Torque on axle；tsFor the torque on sun gear, i.e. torque on the second motor-hollow axle.
Under the mode of operation that bi-motor works simultaneously, when car load needs middling speed (25-50 kilometer) to advance, the first motor is just
To driving, the second motor forward drive, thus drive car load to advance.When car load needs middling speed feedback energy, the first motor is just
To generating, the second motor is positive to generate electricity, and the first motor and the second motor pass through Double Motor Control device and charge to electrical source of power.
It is presented above this utility model specific embodiment, but this utility model is not limited to described embodiment party
Formula.Under the thinking that this utility model is given, to above-mentioned enforcement by the way of being readily apparent that to those skilled in the art
Technological means in example are entered line translation, replacement, are changed, and the relevant art means base in the effect played and this utility model
This utility model purpose that is identical, realizing is also essentially identical, and the technical scheme so being formed is that above-described embodiment is finely adjusted
Formed, this technical scheme still falls within protection domain of the present utility model.
Claims (10)
1. a kind of bi-motor-single planetary row power set, including the first motor, the second motor and single planetary row dynamical system, this is single
Planet row dynamical system includes the output shaft of sun gear and described second motor being in transmission connection with the output shaft of described first motor
The gear ring that is in transmission connection and as outfan planet carrier it is characterised in that the output shaft and described of described the first motor
The locking system that output shaft to corresponding motor carries out independent locking is respectively provided with the output shaft of two motors.
2. bi-motor according to claim 1-single planetary row power set are it is characterised in that described the first motor, list
Planet row dynamical system, the second motor are sequentially arranged along the longitudinal direction, and on planet carrier, coaxial transmission is connected with power transmission shaft, power
Power transmission shaft extends towards the side of the first motor or the second motor along the longitudinal direction, side corresponding with power transmission shaft bearing of trend
The first motor or the second motor output shaft be hollow axle, this hollow axle concentric gap set corresponding with described power transmission shaft
Dress.
3. bi-motor according to claim 1 and 2-single planetary row power set are it is characterised in that bi-motor-single file star
Row's power set include Double Motor Control device and electrical source of power, and electrical source of power connects Double Motor Control device, and Double Motor Control device is even
Connect the first motor and the second motor.
4. bi-motor according to claim 1 and 2-single planetary row power set are it is characterised in that two locking systems are
Lock-up clutch.
5. the power set of bi-motor-single planetary row according to claim 1 and 2 are it is characterised in that described first motor
The range of speeds be 0～3500rpm, torque range be 0-1200nm；The range of speeds of described second motor be 0～
7000rpm, torque range is 0-800nm.
6. a kind of electric automobile, the bi-motor-single planetary row power set including drive axle with for driving described drive axle, should
Bi-motor-single planetary row power set include the first motor, the second motor and single planetary row dynamical system, this single planetary row dynamical system
The tooth that the sun gear being in transmission connection including the output shaft with described first motor and the output shaft of described second motor are in transmission connection
Circle and the planet carrier as outfan, planet carrier passes through power transmission shaft and described drive axle and is in transmission connection it is characterised in that institute
It is respectively provided with the output shaft to corresponding motor on the output shaft of the first motor stated and the output shaft of described second motor to enter
The locking system of the independent locking of row.
7. electric automobile according to claim 6 it is characterised in that described the first motor, single planetary row dynamical system,
Two motors are sequentially arranged along the longitudinal direction, and on planet carrier, coaxial transmission is connected with power output shaft, and power output shaft is passed with middle
Moving axis is connected, the drive axle of intermediate propeller shaft drive connection electric automobile, and described power output shaft and intermediate propeller shaft are constituted
Described power transmission shaft, the second motor connection has hollow axle, and power output shaft is set in described hollow axle, on the first motor
It is provided with the first locking system, the hollow axle being connected with the second motor is provided with the second locking system.
8. the electric automobile according to claim 6 or 7 it is characterised in that bi-motor-single planetary row power set include double
Electric machine controller and electrical source of power, electrical source of power connects Double Motor Control device, and Double Motor Control device connects the first motor and second
Motor.
9. the electric automobile according to claim 6 or 7 is it is characterised in that two locking systems are lock-up clutch.
10. the electric automobile according to claim 6 or 7 it is characterised in that described first motor the range of speeds be 0～
3500rpm, torque range is 0-1200nm；The range of speeds of described second motor is 0～7000rpm, and torque range is 0-
800nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620328228.8U CN205890525U (en) | 2016-04-18 | 2016-04-18 | Bi -motor power device and electric automobile are arranged to single file star |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620328228.8U CN205890525U (en) | 2016-04-18 | 2016-04-18 | Bi -motor power device and electric automobile are arranged to single file star |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205890525U true CN205890525U (en) | 2017-01-18 |
Family
ID=57765936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620328228.8U Expired - Fee Related CN205890525U (en) | 2016-04-18 | 2016-04-18 | Bi -motor power device and electric automobile are arranged to single file star |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205890525U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857044A (en) * | 2016-04-18 | 2016-08-17 | 郑州宇通客车股份有限公司 | Dual motor-single planet gear set power device and electric car |
| CN108638849A (en) * | 2018-06-29 | 2018-10-12 | 北汽福田汽车股份有限公司 | The drive system of vehicle and vehicle with it |
| CN108790774A (en) * | 2018-07-12 | 2018-11-13 | 杭州休伦科技有限公司 | Multimode hybrid power system based on single planetary row and its control method |
| CN111216534A (en) * | 2018-11-23 | 2020-06-02 | 郑州宇通客车股份有限公司 | Pure electric double-motor driving system and vehicle |
-
2016
- 2016-04-18 CN CN201620328228.8U patent/CN205890525U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857044A (en) * | 2016-04-18 | 2016-08-17 | 郑州宇通客车股份有限公司 | Dual motor-single planet gear set power device and electric car |
| CN108638849A (en) * | 2018-06-29 | 2018-10-12 | 北汽福田汽车股份有限公司 | The drive system of vehicle and vehicle with it |
| CN108790774A (en) * | 2018-07-12 | 2018-11-13 | 杭州休伦科技有限公司 | Multimode hybrid power system based on single planetary row and its control method |
| CN108790774B (en) * | 2018-07-12 | 2024-06-04 | 杭州休伦科技有限公司 | Multi-mode hybrid power system based on single planetary gear set and control method thereof |
| CN111216534A (en) * | 2018-11-23 | 2020-06-02 | 郑州宇通客车股份有限公司 | Pure electric double-motor driving system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20210418 |