CN109849639A - A kind of electric drive transmission device for automotive power - Google Patents
A kind of electric drive transmission device for automotive power Download PDFInfo
- Publication number
- CN109849639A CN109849639A CN201910261475.9A CN201910261475A CN109849639A CN 109849639 A CN109849639 A CN 109849639A CN 201910261475 A CN201910261475 A CN 201910261475A CN 109849639 A CN109849639 A CN 109849639A
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- CN
- China
- Prior art keywords
- planetary gear
- gear
- transmission device
- electric drive
- sun gear
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- 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.)
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Abstract
The invention discloses a kind of electric drive transmission devices for automotive power, including two motors, planetary gear mechanism, reduction gearing, differential mechanism.Planetary gear mechanism uses two sun gears and staged planetary gear set, can reduce parts machining difficulty.Dynamical system realizes power dividing drive mode, realizes vehicle stepless shift function by the control of bi-motor, engine can be made not influenced by driving cycle utmostly, worked in low oil consumption section.The program can be used in forerunner and rear-guard vehicle, overburden depth hybrid power and plug-in hybrid-power automobile.
Description
Technical field
The invention belongs to vehicle drive-train technical fields, are specifically exactly to be related to a kind of use of deep hybrid power automobile
In the electric drive transmission device of automotive power.
Background technique
In order to cope with energy problem and environmental protection pressure, automobile dynamic system motorized has become development trend, bi-motor
Power dividing hybrid power system can be realized engine operation range optimization, reduce complete-vehicle oil consumption, do not need extraneous power grid
Charging, it is easy to use.Such technology path is using the mixed movable property product of Toyota Motor Corporation as representative, using typical single planetary row machine
Structure has been carried out mass production as power coupling mechanism, but processing of the existing transmission device to planet arrangement mechanism
Capability Requirement is higher, improves production cost.
Summary of the invention
The invention patent purpose is to provide a kind of electric drive transmission device for automotive power, mixes for depth
Dynamical system reduces complete-vehicle oil consumption to optimize engine as the main purpose.
For achieving the above object, the following technical solutions are proposed:
A kind of electric drive transmission device for automotive power, it includes planetary gear power coupling mechanism, special
Sign is: the planetary gear power coupling mechanism includes the first sun gear, first planetary gear, the second planetary gear, the
Two sun gears and planet carrier, first sun gear are engaged with first planetary gear, and the second planetary gear is nibbled with the second sun gear
It closes, the first planetary gear and second planetary gear link together and constitute step planetary gear set, the step
Formula planetary gear set rotation and can revolve on the planet carrier around first sun gear and second sun gear, institute
It states and arranges several step planetary gear sets on planet carrier circumference, first sun gear and the first axis connection, described second
Sun gear and the second axis connection are driven between the planet carrier and generator rotor shaft using mechanical transmission mechanism, are generated electricity
Machine rotor axis is connect with the rotor of generator ISG, is carried out between driving motor armature spindle and the second axis using mechanical transmission mechanism
Transmission, driving motor armature spindle are connect with the rotor of driving motor TM, and input shaft of the first axle as transmission device is described
Output shaft of second axis as planetary gear power coupling mechanism.
Further, between the planet carrier and generator rotor shaft using be directly connected to or the gear mechanism of fixed speed ratio pass
Dynamic or chain drive.
Further, between the driving motor armature spindle and the second axis using being directly connected to or the gear mechanism of fixed speed ratio
Transmission or chain drive.
Further, the first axle is connect directly or by first clutch with engine ICE.
Further, the first brake is arranged between the generator rotor shaft and gear mechanism housing.
Further, second brake or the one-way clutch with revolving speed limitation function are arranged in the first axle.
Beneficial effect
The present invention uses a kind of electric drive transmission device for automotive power, realizes power dividing operating mode.
The transmission device uses planetary power coupling mechanism, which avoids making using being made of cylindrical external gear
With ring gear, there is structure novel, it is easy to manufacture, reduce product cost.Two can be used when program pure motor driving
A motor drives simultaneously, realizes electric machine operation state optimization, improves electric-only mode system effectiveness, meet plug-in mixed motor-car type
Using.
Detailed description of the invention
Attached drawing 1 is the mixed power plant structural schematic diagram that precursor vehicle is used in the embodiment of the present invention 1.
Attached drawing 2 is the mixed power plant structural schematic diagram that rear-guard vehicle is used in the embodiment of the present invention 1.
Specific embodiment
With reference to the accompanying drawings and examples, invention is further described in detail.
Embodiment 1
As shown in Fig. 1, a kind of electric drive transmission device for automotive power, it is suitable for precursor vehicle, packets
It is first to include planetary power coupling mechanism, generator ISG, driving motor TM, reduction gearing, differential mechanism, clutch and brake etc.
Part.
The planetary gear power coupling mechanism includes the first sun gear 3, first planetary gear 5, the 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 planetary gear 6 and second
Sun gear 4 engages, and the first planetary gear 5 links together with second planetary gear 6 constitutes step planetary gear
Group, the step planetary gear set being capable of the rotations and around first sun gear 3 and described second on the planet carrier 7
Sun gear 4 revolves, and arranges several step planetary gear sets on 7 circumference of planet carrier.The planet carrier 7 turns with generator
Sub- axis 8 is directly connected to, and generator rotor shaft 8 is directly connect with the rotor 16 of generator ISG.In generator rotor shaft 8 and transmission
The first brake B1 is arranged between 0 body of device shell, generator ISG will be locked up as zero speed when the first brake B1 is closed.Institute
State the first sun gear 3 to connect with first axle 1, input shaft of the first axle 1 as transmission device, by first clutch C1 with start
Machine ICE connection.Second sun gear 4 is connect with the second axis 2, and the second axis 2 is as the defeated of planetary gear power coupling mechanism
Shaft.Reduction gearing 9 is installed to engage with the reduction gearing 10 on gear shaft coupling 13 on the second axis 2, the first order is formed and slows down；Tooth
Small reduction gearing 11 on wheel shaft coupling 13 is engaged with differential mechanism final gear 12, is formed the second level and is slowed down.Power passes through two-stage
Reduction gearing reaches differential mechanism 20, then drives vehicle through semiaxis 15.The rotor 18 of driving motor armature spindle 22 and driving motor TM
It connects, reduction gearing 14 is installed on driving motor armature spindle 22, reduction gearing 14 is engaged with reduction gearing 10.Driving motor TM is defeated
Torque out will pass sequentially through reduction gearing 14, reduction gearing 10, reduction gearing 11, reduction gearing 12 and be transferred to differential mechanism 20.
Multi-mode one-way clutch MOWC (Multi-mode One Way Clutch) is arranged on input shaft 1, it can be according to driving mould
Formula make the revolving speed clockwise of input shaft 1 rotate counterclockwise or it is two-way be freely rotated, three kinds of rotary states.The stator of generator ISG
The stator 19 of 17 and driving motor TM is fixed on gear mechanism housing.
When pure electric vehicle forward travel, first clutch C1 is opened, and control multi-mode one-way clutch MOWC limits input shaft 1
It rotates counterclockwise and (defines the rotation direction of engine as clockwise), can be operated alone using driving motor TM, it can also
To drive vehicle jointly with generator ISG.When pure electric vehicle is moved backward, control multi-mode one-way clutch MOWC limitation input shaft 1 is suitable
Hour hands rotation, generator ISG and driving motor TM drive simultaneously.
When entering hybrid mode by pure motor driving, engine is dragged to igniting and turned by closure first clutch C1
Speed completes engine starting process.Power system operational is in power dividing drive mode.Input shaft 1, generator rotor shaft 8,
Two axis 2 constitute three shaft transmission systems, and planetary gear power coupling mechanism realizes engine ICE, generator ISG and power
Power coupling between output.Generator ISG work obtains power from the end engine ICE and turns in positive revolving speed negative torque state
It changes electric energy into and uses or be stored in battery for driving motor TM.Generator ISG makes engine ICE work exist by itself rotational speed regulation
Low oil consumption section, so that engine ICE be avoided to be influenced by driving cycle.With the increase of speed, the revolving speed of output shaft 2 is gradually
Increase, generator ISG revolving speed will drop near zero speed, be closed the first brake B1 at this time, generator ISG be locked, and realize
Pure engine ICE driving, can be improved the operational efficiency of entire dynamical system.
Embodiment 2
As shown in Fig. 2, a kind of electric drive transmission device for automotive power, it is suitable for rear-guard vehicles, especially
It is city public transportation vehicle, since speed low energy enough simplifies transmission configuration.Input shaft 1 directly with engine flywheel damper
FW connection, generator ISG and driving motor TM are connect by reduction gearing with power coupling mechanism element, are realized and are used small machine
Purpose with torquey engine, advantageously reduces product cost.
Reduction gearing 23 is installed to engage with the reduction gearing 24 on generator rotor shaft 8 on planet carrier 7.Driving motor turns
Reduction gearing 26 is installed to engage with the reduction gearing 25 on output shaft 2 on sub- axis 22.Output shaft 2 is defeated as the power of transmission device
Shaft and vehicle main reducing gear flanged joint.Generator ISG and driving motor TM not directly with planetary gear power coupling
Mechanism connection first passes through reduction gearing and carries out torque increase square, realizes the power matching with torquey engine, reduces Motor torque and wants
It asks.
It is operated alone when pure motor driving using driving motor TM, due to being not provided with brake or unidirectional on input shaft
Clutch, generator ISG cannot participate in pure electric vehicle driving, otherwise can drag engine rotation.
Engine ICE starting is directly dragged using generator ISG, with power dividing mode operation when hybrid mode,
Realize E-CVT stepless shift function.
Claims (6)
1. a kind of electric drive transmission device for automotive power, it includes planetary gear power coupling mechanism, feature
Be: the planetary gear power coupling mechanism includes the first sun gear (3), first planetary gear (5), the 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 planet
Gear (6) is engaged with the second sun gear (4), and the first planetary gear (5) links together with second planetary gear (6)
Step planetary gear set is constituted, the step planetary gear set being capable of the rotation and around described on the planet carrier (7)
First sun gear (3) and second sun gear (4) revolve, and arrange several step planets on planet carrier (7) circumference
Gear set, first sun gear (3) connect with first axle (1), and second sun gear (4) connect with the second axis (2), described
It is directly connected to or is driven using mechanical transmission mechanism, generator rotor shaft between planet carrier (7) and generator rotor shaft (8)
(8) it is connect with the rotor (16) of generator (ISG), is directly connected to or adopts between driving motor armature spindle (22) and the second axis (2)
It being driven with mechanical transmission mechanism, driving motor armature spindle (22) is connect with the rotor (18) of driving motor (TM), and described
Input shaft of one axis (1) as transmission device, output shaft of second axis (2) as planetary gear power coupling mechanism.
2. a kind of electric drive transmission device for automotive power according to claim 1, it is characterised in that: described
Using being directly connected to or the gear mechanism transmission of fixed speed ratio or chain drive between planet carrier (7) and generator rotor shaft (8).
3. a kind of electric drive transmission device for automotive power according to claim 1, it is characterised in that: described
Using being directly connected to or the gear mechanism transmission of fixed speed ratio or chain pass between driving motor armature spindle (22) and the second axis (2)
It is dynamic.
4. a kind of electric drive transmission device for automotive power according to claim 1, it is characterised in that: described
First axle (1) is connect directly or by first clutch (C1) with engine (ICE).
5. a kind of electric drive transmission device for automotive power according to claim 1, it is characterised in that: described
The first brake (B1) is arranged between generator rotor shaft (8) and gear mechanism housing (0).
6. a kind of electric drive transmission device for automotive power according to claim 1, it is characterised in that: described
Second brake (B2) or the one-way clutch with revolving speed limitation function are arranged in first axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261475.9A CN109849639A (en) | 2019-04-02 | 2019-04-02 | A kind of electric drive transmission device for automotive power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261475.9A CN109849639A (en) | 2019-04-02 | 2019-04-02 | A kind of electric drive transmission device for automotive power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109849639A true CN109849639A (en) | 2019-06-07 |
Family
ID=66903119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910261475.9A Withdrawn CN109849639A (en) | 2019-04-02 | 2019-04-02 | A kind of electric drive transmission device for automotive power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109849639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320374A (en) * | 2021-07-16 | 2021-08-31 | 席忠 | Double-motor power converging hybrid power system |
| CN114076180A (en) * | 2020-08-21 | 2022-02-22 | 比亚迪股份有限公司 | Planetary gear transmission device, power driving system and vehicle |
-
2019
- 2019-04-02 CN CN201910261475.9A patent/CN109849639A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076180A (en) * | 2020-08-21 | 2022-02-22 | 比亚迪股份有限公司 | Planetary gear transmission device, power driving system and vehicle |
| CN113320374A (en) * | 2021-07-16 | 2021-08-31 | 席忠 | Double-motor power converging hybrid power system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190607 |