CN209666838U - A kind of electric drive transmission device - Google Patents
A kind of electric drive transmission device Download PDFInfo
- Publication number
- CN209666838U CN209666838U CN201822072187.2U CN201822072187U CN209666838U CN 209666838 U CN209666838 U CN 209666838U CN 201822072187 U CN201822072187 U CN 201822072187U CN 209666838 U CN209666838 U CN 209666838U
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- gear
- planetary gear
- sun gear
- reduction gearing
- planet carrier
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000009467 reduction Effects 0.000 claims description 39
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005183 dynamical system Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 239000002243 precursor Substances 0.000 description 1
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Abstract
The utility model discloses a kind of electric drive transmission devices, it includes planetary gear mechanism, be characterized in that: the planetary gear mechanism includes the first sun gear (3), first planetary gear (5), second planetary gear (6), second sun gear (4) and planet carrier (7), first sun gear (3) is engaged with first planetary gear (5), second planetary gear (6) is engaged with the second sun gear (4), the first planetary gear (5) and second planetary gear (6), which link together, constitutes step planetary gear set and being capable of the rotation and around first sun gear (3) and second sun gear (4) revolution on the planet carrier (7).The transmission device uses two sun gears and staged planetary gear set, reduces difficulty of processing.Pure electric vehicle drive mode, series connection and the parallel hybrid power drive mode that two gears are realized by control shifting element, can be used in forerunner and rear-guard vehicle, and covering pure electric automobile, plug-in mix electrical automobile and stroke-increasing electric automobile.
Description
Technical field
The utility model relates to vehicle drive-train technical field, especially as pure electric vehicle and stroke-increasing electric automobile
A kind of electric drive transmission device.
Background technique
Energy problem and environmental protection pressure make automobile dynamic system motorized become a kind of development trend, and the electricity of more gears drives
Dynamic transmission device can be improved vehicle performance and optimize the operation interval of driving motor, reduces battery consumption, becomes feasible and mention
Rise the technology path of power drive system performance.
Pure electric vehicle and extended-range scheme more at present all uses fixed speed ratio mode in pure motor driving, although speed change
Box structure is simple, but will lead to electric machine operation state and depend entirely on traveling road conditions, and system effectiveness cannot optimize, engine
It participates in also available without enough speed ratios when work.Therefore two gear of exploitation or more gear electric drive transmission devices can preferably meet
The use of power drive system.
Utility model content
The utility model patent purpose is to provide a kind of electric drive transmission device, not only can satisfy under electric-only mode
Speed and dynamic property demand, are also used as the drive part of extended-range dynamical system, rely on and start in battery capacity deficiency
The problems such as machine completes course continuation mileage, solves the mileage anxiety of pure electric vehicle, charging difficulty at this stage.
To realize above-mentioned purpose of utility model, the following technical solutions are proposed:
A kind of electric drive transmission device includes the first sun gear, first planetary gear, second using planetary gear mechanism
Planetary gear, the second sun gear and planet carrier, first sun gear are engaged with first planetary gear, the second planetary gear and
The engagement of two sun gears, the first planetary gear and second planetary gear link together and constitute step planetary gear set
And rotation and can revolve around first sun gear and second sun gear on the planet carrier, the planet carrier circle
Several step planetary gear sets are arranged on week, first sun gear is mounted in first axle, the planet carrier and transmission
Arrange the first brake between device housing, planet carrier will be locked up as zero speed when the first arrester close, and described second too
Sun wheel is mounted on the second axis, and the first axle is connect with the rotor of driving motor simultaneously, and second axis is as power output
Axis.
For longitudinal rear-guard vehicle, the second axis directly can fix speed with vehicle main reducing gear flanged joint or with having
Ratio deceleration mechanism connection after again with vehicle main reducing gear flanged joint.
For horizontal precursor vehicle, reduction gearing is installed on the second axis, power is transferred to differential mechanism by reduction gearing,
Vehicle driving is driven through semiaxis again.Reduction gearing is using small reduction gearing and the gear that double reduction includes on second axis
Big retarding gear engagement on shaft coupling, forms the first order and slows down；The main deceleration of small reduction gearing and differential mechanism on gear shaft coupling is big
Gear engagement forms the second level and slows down.
First clutch is set between the first axle and planet carrier, and first clutch uses friction plate clutch machine
Structure, planetary gear mechanism unitary rotation is run when first clutch is closed.First clutch can also be arranged in the second sun gear
Between planet carrier or it is arranged between the first sun gear and the second sun gear.
First brake can be friction disk type brake or the mechanical mechanism with rotation latch functions.Described
One brake can also be arranged between the first sun gear and gear mechanism housing, while will increase gear speed ratio.
In pure electric vehicle driving, the first arrester close, first clutch is opened, and design gear speed ratio obtains big drive at this time
Dynamic torque, for accelerating starting and climbing operating condition, which is first gear electric-only mode.Turn as speed increases driving motor
Speed increases, and opens the first brake, is closed first clutch, at this time planetary gear mechanism unitary rotation, does not have between each element
There is gear motion, is defined as second gear electric-only mode.
Reduction gearing one is fixedly mounted in the first axle, reduction gearing three, reduction gearing three are placed on transmission shaft
It can be freely rotated on transmission shaft, reduction gearing two, reduction gearing two are placed between reduction gearing one and reduction gearing three
It is engaged simultaneously with reduction gearing one and reduction gearing three；Second clutch is arranged between transmission shaft and reduction gearing three.Transmission
Input shaft of the axis as engine power is fixed gear one on the transmission shaft and is engaged with the gear two on generator shaft, generates electricity
The connection of the rotor of arbor and generator.When second clutch is closed, engine and driving motor can drive vehicle jointly.
Beneficial effect
A kind of electric drive transmission device provided by the utility model, using the planetary mechanism being made of cylindrical external gear,
Manufacture easy to process reduces product development difficulty.The program can be expanded applied to pure electric vehicle, plug-in hybrid dynamic system and increasing
Formula power driven system is a hardware and software platform technical solution.Driving motor can combine low-speed big using two gear speed ratios
With high speed driving requirements, the performance requirement to motor is reduced, while being conducive to improve dynamical system efficiency, is extended in traveling
Journey.
Detailed description of the invention
Two gear pure electric vehicle system schema schematic diagram in 1 the utility model embodiment of attached drawing
Series-parallel hybrid dynamic system scheme schematic diagram in 2 the utility model embodiment of attached drawing
Two gear bridge-drive scheme schematic diagram in 3 the utility model embodiment of attached drawing
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figure 1, a kind of electric drive transmission device, including driving motor TM, planetary gear mechanism, reduction gearing,
Differential mechanism, clutch and brake component.
The planetary gear mechanism include the first sun gear 3, first planetary gear 5, the second planetary gear 6, second too
Sun wheel 4 and planet carrier 7, first sun gear 3 are engaged with first planetary gear 5, the second planetary gear 6 and the second sun gear 4
Engagement, the first planetary gear 5 links together with second planetary gear 6 constitutes step planetary gear set and can
It rotation and revolves around first sun gear 3 and second sun gear 4 on the planet carrier 7,7 circumference of planet carrier
Upper several step planetary gear sets of arrangement, first sun gear 3 are mounted in first axle 1, the planet carrier 7 and transmission
The first brake B1 is arranged between device housing, planet carrier 7 will be locked up as zero speed when the first brake B1 is closed, and described the
Two sun gears 4 are mounted on the second axis 2, and the first axle 1 is connect with the rotor 14 of driving motor TM simultaneously, second axis 2
As power output shaft.The stator 15 of driving motor TM is fixed on gear mechanism housing.Small reducing gear is installed on the second axis 2
Wheel 8 is engaged with the big retarding gear 9 on gear shaft coupling 11, is formed the first order and is slowed down；Small reduction gearing 10 on gear shaft coupling 11
It is engaged with the main deceleration gear wheel 12 of differential mechanism, forms the second level and slow down.Power reaches differential mechanism 25 by double reduction gearing, then
Vehicle is driven through semiaxis 13.
Between the first axle 1 and planet carrier 7 be arranged first clutch C1, first clutch C1 using friction disk type from
Clutch mechanism, planetary gear mechanism is by unitary rotation when first clutch C1 is closed.Between each operating mode and shifting element
Control logic relationship is as shown in the table.
| Operating mode | B1 | C1 |
| EV-1 | ● | 〇 |
| EV-2 | 〇 | ● |
Note: 〇-opening state；●-closed state.
In low speed, the first brake B1 is individually closed, and planet carrier 7 is locked up as zero speed, as first gear pure electric vehicle
Mode EV-1.At this time driving motor TM to the second sun gear 4 speed ratio i1stFor,
i1st=(Z5/Z3)*(Z4/Z6)
Wherein, Z3For the first sun gear number of teeth, Z4For the second sun gear number of teeth, Z5For the first planetary gear number of teeth, Z6It is
The two planetary gear numbers of teeth.
When speed increases, driving motor TM revolving speed increases therewith, opens the first brake B1 and is closed at the first clutch
Device C1, each element unitary rotation of planetary gear mechanism at this time, without opposite engagement operation between each element.The gear is direct gear
For state for small load condition and operating condition of running at high speed, planet arrangement mechanism unitary rotation does not have gear engagement loss and noise wind
Danger, as second gear electric-only mode EV-2.
Embodiment 2
Increase engine-driven tooth shaft element and second clutch C2 on the basis of embodiment 1, constitutes a string simultaneously
Join hybrid dynamic system.Hybrid dynamic system includes engine ICE, generator ISG and transmission mechanism, and engine ICE passes through flywheel vibration absorber
FW is connect with transmission shaft 21, and deceleration gear 1 is installed on transmission shaft 21, gear 1 and is mounted on generator shaft 22
Gear 2 20 engage, generator shaft 22 connect with the rotor 23 of generator ISG, and the stator 24 of generator ISG is fixed on transmission
In device housing.Gear 1 and gear 2 20 are to improve the working efficiency of generator ISG to improve generator ISG revolving speed.
Reduction gearing 1 is fixedly mounted in first axle 1, reduction gearing 3 18 is placed on transmission shaft 21, reduction gearing 3 18 can be with
It is freely rotated on transmission shaft 21, reduction gearing 2 17, reducing gear is placed between reduction gearing 1 and reduction gearing 38
It takes turns 2 17 while being engaged with reduction gearing 1 and reduction gearing 3 18.It is arranged between transmission shaft 21 and reduction gearing 3 18
Second clutch C2.
In battery capacity abundance, driving motor TM drives vehicle with two gear electric-only modes, at this time engine ICE and hair
Motor ISG is not involved in work.When battery capacity is low, engine start drives generator ISG power generation, is battery or driving electricity
Machine TM provides electric energy, is equivalent to concatenated operating mode at this time, engine does not participate in driving directly, therefore engine can work
In stable state, only driven generator ISG generates electricity.
Transmission device is other than it may be implemented two gear pure electric vehicles and tandem working mode, the engine when speed is relatively high
ICE itself can work in low oil consumption region, be closed second clutch C2, engine power is by reduction gearing 3 18, deceleration
Power is transferred to first axle 1 by gear 2 17, reduction gearing 1, drives vehicle driving according to two gear speed ratios.Each operating mode
Control logic relationship between shifting element is as shown in the table.
| Operating mode | B1 | C1 | C2 |
| EV-1 | ● | 〇 | 〇 |
| EV-2 | 〇 | ● | 〇 |
| Series connection -1 | ● | 〇 | 〇 |
| Series connection -2 | 〇 | ● | 〇 |
| Parallel connection -1 | ● | 〇 | ● |
| Parallel connection -2 | 〇 | ● | ● |
Note: 〇-opening state ●-closed state
Embodiment 3
As shown in figure 3, a kind of two for rear-guard vehicle keep off electric drive transmission devices, including driving motor TM, planetary
Gear mechanism, clutch and brake component.The planetary gear mechanism include the first sun gear 3, first planetary gear 5,
Second planetary gear 6, the second sun gear 4 and planet carrier 7, first sun gear 3 are engaged with first planetary gear 5, the second row
Star gear 6 is engaged with the second sun gear 4, and the first planetary gear 5 links together with second planetary gear 6 constitutes platform
Stepwise planetary gear set simultaneously being capable of the rotation and around first sun gear 3 and second sun gear 4 on the planet carrier 7
It revolves, arranges several step planetary gear sets on 7 circumference of planet carrier.First sun gear 3 is mounted on first axle 1
On, the first brake B1 is arranged between the first axle 1 and gear mechanism housing, first axle 1 will when the first brake B1 is closed
It is locked up as zero speed.The planet carrier 7 is connect with the rotor 14 of driving motor TM simultaneously.Second sun gear 4 is mounted on
On second axis 2, second axis 2 is used as power output shaft simultaneously, directly with vehicle main reducing gear flanged joint or with have
Fixed speed ratio deceleration mechanism connection after again with vehicle main reducing gear flanged joint.
Between the first axle 1 and planet carrier 7 be arranged first clutch C1, first clutch C1 using friction disk type from
Clutch mechanism, planetary gear mechanism is by unitary rotation when first clutch C1 is closed.
One gear driving when driving motor TM to the second sun gear 4 speed ratio i1stFor,
i1st=(Z5/Z3)/(Z5/Z3-Z6/Z4)
Wherein, Z3For the first sun gear number of teeth, Z4For the second sun gear number of teeth, Z5For the first planetary gear number of teeth, Z6It is
The two planetary gear numbers of teeth.
The connection relationship of driving motor TM and power output shaft and planet arrangement mechanism is easy to get a biggish speed ratio of gear, full
Sufficient low speed acceleration request, second gear speed ratio are that direct gear is used for high speed power-assisted, are suitable for P4 hybrid dynamic system.
Claims (5)
1. a kind of electric drive transmission device, it includes planetary gear mechanism, it is characterised in that: planetary gear mechanism packet
The first sun gear (3), first planetary gear (5), the second planetary gear (6), the second sun gear (4) and planet carrier (7) are included, it is described
First sun gear (3) is engaged with first planetary gear (5), and the second planetary gear (6) is engaged with the second sun gear (4), and described
One planetary gear (5) links together with second planetary gear (6) constitutes step planetary gear set and can be described
It rotation and revolves around first sun gear (3) and second sun gear (4) on planet carrier (7), planet carrier (7) circle
Several step planetary gear sets are arranged on week, first sun gear (3) is mounted on first axle (1), the planet carrier
(7) it is arranged between gear mechanism housing the first brake (B1), planet carrier (7) will be locked up when the first brake (B1) is closed
For zero speed, second sun gear (4) is mounted on the second axis (2), the first axle (1) while turn with driving motor TM
Sub (14) connection, second axis (2) are used as power output shaft.
2. a kind of electric drive transmission device according to claim 1, it is characterised in that: the first axle (1) and planet carrier
(7) arrange that first clutch (C1) or first clutch (C1) are arranged between the second sun gear (4) and planet carrier (7) between
Or first clutch (C1) is arranged between the first sun gear (3) and the second sun gear (4).
3. a kind of electric drive transmission device according to claim 1, it is characterised in that: first brake (B1) is to rub
Scraping-piece type brake is the one-way clutch with revolving speed latch functions.
4. a kind of electric drive transmission device according to claim 1, it is characterised in that: the first brake (B1) arrangement
Between the first sun gear (3) and gear mechanism housing, while even by the rotor of driving motor (TM) (14) and planet carrier (7)
It connects.
5. a kind of electric drive transmission device according to claim 1 or 2, it is characterised in that: fixed on the first axle (1)
It installs reduction gearing one (16), places reduction gearing three (18) on transmission shaft (21), the reduction gearing three (18) is in transmission shaft
(21) it can be freely rotated on, place reduction gearing two (17) between the reduction gearing one (16) and reduction gearing three (18),
The reduction gearing two (17) is engaged with reduction gearing one (16) and reduction gearing three (18), the transmission shaft (21) and reducing gear
It takes turns and arranges second clutch (C2) between three (18), input shaft of the transmission shaft (21) as engine power, the transmission shaft
(21) it fixes gear one (19) on to engage with the gear two (20) on generator shaft (22), generator shaft (22) and generator ISG
Rotor (23) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822072187.2U CN209666838U (en) | 2018-12-11 | 2018-12-11 | A kind of electric drive transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822072187.2U CN209666838U (en) | 2018-12-11 | 2018-12-11 | A kind of electric drive transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209666838U true CN209666838U (en) | 2019-11-22 |
Family
ID=68562248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822072187.2U Withdrawn - After Issue CN209666838U (en) | 2018-12-11 | 2018-12-11 | A kind of electric drive transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209666838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318704A (en) * | 2018-12-11 | 2019-02-12 | 上海汉老汽车科技有限公司 | A kind of electric drive transmission device |
| CN113928101A (en) * | 2021-11-11 | 2022-01-14 | 江苏华永复合材料有限公司 | Single-motor coaxial two-gear electric drive axle |
-
2018
- 2018-12-11 CN CN201822072187.2U patent/CN209666838U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318704A (en) * | 2018-12-11 | 2019-02-12 | 上海汉老汽车科技有限公司 | A kind of electric drive transmission device |
| CN109318704B (en) * | 2018-12-11 | 2024-02-27 | 王延芸 | Electric drive transmission device |
| CN113928101A (en) * | 2021-11-11 | 2022-01-14 | 江苏华永复合材料有限公司 | Single-motor coaxial two-gear electric drive axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191122 Effective date of abandoning: 20240227 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191122 Effective date of abandoning: 20240227 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |