CN105387156A - Electrically-driven automatic two-gear transmission - Google Patents
Electrically-driven automatic two-gear transmission Download PDFInfo
- Publication number
- CN105387156A CN105387156A CN201510908517.5A CN201510908517A CN105387156A CN 105387156 A CN105387156 A CN 105387156A CN 201510908517 A CN201510908517 A CN 201510908517A CN 105387156 A CN105387156 A CN 105387156A
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- Prior art keywords
- planet row
- row
- dirivig member
- gear
- transmission
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/10—Braking arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/02047—Automatic transmissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02091—Measures for reducing weight of gearbox
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention relates to the field of machine design and discloses an electrically-driven automatic two-gear transmission. The transmission is composed of two simple planetary gear rows and a double planetary gear row and provided with two controlling pieces and six basic components. The first simple planetary gear row is composed of a first row of gear rings R1, a first row of planetary carriers CA1 and a first row of sun wheels S1. The second simple planetary gear row is composed of a second row of gear rings R2, a second row of planetary carriers CA2 and a second row of sun wheels S2. The third double planetary gear row is composed of a third row of gear rings R3, a third row of planetary carriers CA3 and a third row of sun wheels S3. The electrically-driven automatic two-gear transmission has the advantages that a transmission diagram is optimized, the dimensions of an automatic gearbox are decreased, the weight of the gearbox is reduced, and the manufacturing cost is reduced; two gears are shifted according to different driving conditions, power convergence is achieved at the second gear, and a large reduction ratio is provided; the order ratio selection of the automatic transmission is reasonable, and automatic gear shifting of the automatic transmission is facilitated.
Description
Technical field
The invention belongs to mechanical design field, relate to the transmission design scheme of automatic transmission case, be specially the two-shift automatic speed variator that a kind of electric drive uses
Background technique
In recent years, environment and energy problem become one of major reason of restriction China National development and national development, and the cry along with mankind's energy-saving and emission-reduction raises the continuous awakening with environmental consciousness gradually, the arena of history has been got back to again in the research and development of electric vehicle, no matter be mixed power electric car, fuel cell car or pure electric drive automobile, its electric drive system is all one of key technology of electric motor car research.And be subject to the restriction of vehicle space size, driving cycle etc., require that electric drive system volume is little, specific power is high, adapt to various driving cycle, one of domestic and international research emphasis for electric drive system is exactly improve constantly motor speed for this reason, reduces system bulk, hoisting power density.So the big retarding that electric drive uses becomes the key factor of restriction electric drive system development than the research and development of speed changer.
In various speed changer, planetary automatic transmission has the advantages such as compact structure, volume are little, and reasonably design can obtain larger reduction speed ratio, is called the first-selected parts that electric drive system designs.When determining velocity ratio series, the Gear Planet Transmission sketch chosen is a very important also very complicated job, why important is because the efficiency of speed changer, size and reliability depend on transmission sketch to a great extent, why complexity is then because of the planetary transmission with multiple planetary mechanism composition requirement gear, possible amount of projects is huge, how from the vast and numerous possible scheme of quantity, finding the scheme met the demands, is a difficult problem for many years.
Summary of the invention
(1) goal of the invention
The object of the invention is: the two-shift automatic speed variator providing a kind of electric drive to use, the compact structure, the volume that realize electric vehicle electric drive system be little, big retarding ratio, high power density.
(2) technological scheme
In order to solve the problems of the technologies described above, the invention provides the two-shift automatic speed variator that a kind of electric drive uses, it comprises: three planet rows, first planet row PGS1, the second planet row PGS2, third planet row PGS3, wherein each planet row arranges in order, dirivig member is utilized to connect between each planet row, 1. transmission input shaft is connected with input link, import the power that the motor of electric drive system exports into this automatic transmission, 2. transmission output shaft is connected with output link, by transfer case or differential mechanism, power is reached forward and backward bridge or left and right driving wheel; Described first planet row PGS1 respectively with input link 1., 4. the first dirivig member 3. with the second dirivig member be connected; Described planet row PGS2 respectively with dirivig member 4., 5. output link the 2. with three dirivig member be connected; Described second planet row PGS3 respectively with the first dirivig member 3., 6. output link the 2. with four dirivig member be connected; 3. described first break B1 for braking the first dirivig member; 6. described second brake B2 for braking the 4th dirivig member; When first break B1 engages, 3. the first dirivig member is braked, and third planet row PSG3 is in idling conditions, only by first planet row PSG1 and the second planet row PSG2 transmission, realizes the first gear; When second brake B2 engages, 6. the 4th dirivig member is braked, and first planet row PSG1, the second planet row PSG2, third planet row PSG3 all participate in transmission, realize the second gear.
Wherein, described first planet row PGS1 and the second planet row PGS2 is simple planet row, and third planet row PGS3 is double star planet row; Each planet row includes sun gear, planet carrier and gear ring.
Wherein, 1. described input link connects row's sun gear S1 of first planet row PGS1; 2. output link connects the two-row planetary frame CA2 of the second planet row PGS2, the three seniority among brothers and sisters carrier CA3 of third planet row PGS3; 3. first dirivig member connects a seniority among brothers and sisters carrier CA1 of first planet row PGS1, three of third planet row PGS3 arrange hub in sun gear S3, the first break B1; 4. second dirivig member connects a toothrow circle R1 of first planet row PGS1, two row's sun gear S2 of the second planet row PGS2; 5. 3rd dirivig member connects two toothrow circle R2, the case of transmission of the second planet row PGS2; 4th dirivig member 6. connect third planet row PGS3 three toothrow circle R3, second brake B2 in hub.
Wherein, the special parameter of described first planet row PGS1, the second planet row PGS2, third planet row PGS3 is respectively: k
1=2.56, k
2=1.85 and k
3=-3.56.
(3) beneficial effect
The two-shift automatic speed variator that the electric drive that technique scheme provides uses, the optimization of transmission sketch, decreases the size of automatic transmission case, alleviates the weight of gearbox, and the specific power under equal-wattage improves further, and reduces manufacturing expense; There are two gears switch according to different driving cycle; And realize power flow concentration at two gears, larger reduction speed ratio is provided; The rank of this automatic transmission are more reasonable than selecting, and are convenient to the self shifter of automatic transmission.
Accompanying drawing explanation
Fig. 1 is two-shift automatic speed variator each parts annexation schematic diagram that electric drive of the present invention uses.
Wherein, PGS1-first planet is arranged, PGS2-second planet row, PGS3-third planet is arranged, 1.-input link, 2.-output link, 3. the-the first dirivig member, 4. the-the second dirivig member, 5.-three dirivig member, 6.-four dirivig member, B1-first break, 1. B2-second brake is driving link, 2. be Passive part
R1 is a toothrow circle, CA1 is a seniority among brothers and sisters carrier, S1 is row's sun gear; R2 is two toothrow circles, CA2 is two-row planetary frame, S2 is two row's sun gears; R3 is three toothrow circles, CA3 is three seniority among brothers and sisters carrier, S3 is three row's sun gears.
Embodiment
For making object of the present invention, content and advantage clearly, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the two-shift automatic speed variator that the present embodiment electric drive uses is applicable to electric vehicle electric drive system, it comprises three planet rows, first planet row PGS1, second planet row PGS2, third planet row PGS3, wherein each planet row arranges in order, dirivig member is utilized to connect between each planet row, 1. transmission input shaft is connected with input link, import the power that the motor of electric drive system exports into this automatic transmission, 2. transmission output shaft is connected with output link, before power being reached by transfer case or differential mechanism, back axle or a left side, right driving wheel, for electric wheel hub electric drive system then the direct power that this automatic transmission is transmitted reach vehicle.This speed changer is almost symmetry relative to rotating center, eliminates lower half portion of rotating center, no longer explain when below describing in Fig. 1.
Described first planet row PGS1 respectively with input link 1., 4. the first dirivig member 3. with the second dirivig member be connected; Described planet row PGS2 respectively with dirivig member 4., 5. output link the 2. with three dirivig member be connected; Described second planet row PGS3 respectively with the first dirivig member 3., 6. output link the 2. with four dirivig member be connected; 3. described first break B1 for braking the first dirivig member; 6. described second brake B2 for braking the 4th dirivig member.
Wherein, first planet row PGS1 and the second planet row PGS2 is simple planet row, and third planet row PGS3 is double star planet row.Each planet row includes sun gear, planet carrier and gear ring.
1. input link connects row's sun gear S1 of first planet row PGS1; 2. output link connects the two-row planetary frame CA2 of the second planet row PGS2, the three seniority among brothers and sisters carrier CA3 of third planet row PGS3; 3. first dirivig member connects a seniority among brothers and sisters carrier CA1 of first planet row PGS1, three of third planet row PGS3 arrange hub in sun gear S3, the first break B1; 4. second dirivig member connects a toothrow circle R1 of first planet row PGS1, two row's sun gear S2 of the second planet row PGS2; 5. 3rd dirivig member connects two toothrow circle R2, the case of transmission of the second planet row PGS2; 4th dirivig member 6. connect third planet row PGS3 three toothrow circle R3, second brake B2 in hub.
Describe based on said structure, the realization of two gears of the present embodiment automatic transmission is as follows:
1, when the first break B1 engages, 3. the first dirivig member is braked, and third planet row PSG3 is in idling conditions, only by first planet row PSG1 and the second planet row PSG2 transmission, realizes the first gear;
2, when second brake B2 engages, 6. the 4th dirivig member is braked, and first planet row PSG1, the second planet row PSG2, third planet row PSG3 all participate in transmission, realize the second gear.
The preferred instantiation of the present invention is described below:
The interior velocity ratio of each planet row, namely the special parameter of this planet row is respectively: k
1=2.56, k
2=1.85 and k
3=-3.56, speed changer PGS1-PGS3 planet row rotation speed relation are as follows:
Speed changer PGS1-PGS3 planet row torque relation is as follows:
Table 1 is planetary transmission gear and velocity ratio, describes and realizes the required operator combined of each gear.Table 2 is planetary transmission relative rotation speed, describes the relative rotation speed of component when each gear.Table 3 is planetary transmission relative moment, describes the relative moment of component when each gear.
Table 1 realizes operator binding sequence and the velocity ratio of each gear
| Gear | Gearshift logic | Velocity ratio |
| 1 | B1 | -7.296 |
| 2 | B2 | -16.410 |
The each component relative rotation speed of table 2
N in upper table represents the relative rotation speed of each planet row basic building block respectively.
The each gear relative moment of table 3
Wherein, T
s, T
r, T
carepresent the moment of each planet row sun gear, gear ring and framework respectively.
Advantage of the present invention is the optimization of transmission sketch, decreases the size of automatic transmission case, alleviates the weight of gearbox, reduces manufacturing expense; There are two gears switch according to different driving cycle; And realize power flow concentration at two gears, larger reduction speed ratio is provided; The rank of this automatic transmission are more reasonable than selecting, and are convenient to the self shifter of automatic transmission.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. the two-shift automatic speed variator of an electric drive use, it is characterized in that, comprise: three planet rows, first planet row (PGS1), second planet row (PGS2), third planet row (PGS3), wherein each planet row arranges in order, dirivig member is utilized to connect between each planet row, transmission input shaft is connected with input link (1.), import the power that the motor of electric drive system exports into this automatic transmission, transmission output shaft is connected with output link (2.), before power being reached by transfer case or differential mechanism, back axle or a left side, right driving wheel, described first planet row (PGS1) is connected with input link (1.), the first dirivig member (3.) and the second dirivig member (4.) respectively, described planet row (PGS2) is connected with dirivig member (4.), output link (2.) and the 3rd dirivig member (5.) respectively, described second planet row (PGS3) is connected with the first dirivig member (3.), output link (2.) and the 4th dirivig member (6.) respectively, described first break (B1) is for braking the first dirivig member (3.), described second brake (B2) is for braking the 4th dirivig member (6.), when first break (B1) engages, first dirivig member (3.) is braked, third planet row (PSG3) is in idling conditions, only by first planet row (PSG1) and the second planet row (PSG2) transmission, realizes the first gear, when second brake (B2) engages, 4th dirivig member (6.) braking, first planet row (PSG1), the second planet row (PSG2), third planet row (PSG3) all participate in transmission, realize the second gear.
2. the two-shift automatic speed variator of electric drive use as claimed in claim 1, it is characterized in that, described first planet row (PGS1) and the second planet row (PGS2) are simple planet row, and third planet row (PGS3) is double star planet row; Each planet row includes sun gear, planet carrier and gear ring.
3. the two-shift automatic speed variator of electric drive use as claimed in claim 2, is characterized in that, described input link (1.) connects row's sun gear (S1) of first planet row (PGS1); Output link (2.) connects the two-row planetary frame (CA2) of the second planet row (PGS2), three seniority among brothers and sisters carrier (CA3) of third planet row (PGS3); First dirivig member (3.) connects seniority among brothers and sisters carrier (CA1) of first planet row (PGS1), three of third planet row (PGS3) arrange sun gear (S3), the first break (B1) interior hub; Second dirivig member (4.) connects a toothrow circle (R1) of first planet row (PGS1), two rows' sun gear (S2) of the second planet row (PGS2); 3rd dirivig member (5.) connects two toothrow circles (R2), the case of transmission of the second planet row (PGS2); 4th dirivig member (6.) connects three toothrow circles (R3), second brake (B2) the interior hub of third planet row (PGS3).
4. the two-shift automatic speed variator that the electric drive as described in any one of claim 1-3 uses, it is characterized in that, the special parameter of described first planet row (PGS1), the second planet row (PGS2), third planet row (PGS3) is respectively: k
1=2.56, k
2=1.85 and k
3=-3.56.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908517.5A CN105387156B (en) | 2015-12-09 | 2015-12-09 | The two-shift automatic speed variator that a kind of electric drive is used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908517.5A CN105387156B (en) | 2015-12-09 | 2015-12-09 | The two-shift automatic speed variator that a kind of electric drive is used |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105387156A true CN105387156A (en) | 2016-03-09 |
| CN105387156B CN105387156B (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510908517.5A Active CN105387156B (en) | 2015-12-09 | 2015-12-09 | The two-shift automatic speed variator that a kind of electric drive is used |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606080A (en) * | 2017-10-13 | 2018-01-19 | 中南林业科技大学 | A kind of seven grades of electric-controlled mechanical planetary automatic transmissions for automatic gear-box |
| CN108050222A (en) * | 2017-12-08 | 2018-05-18 | 合肥工业大学 | One kind two keeps off electric vehicle power-driven system |
| CN108177512A (en) * | 2017-03-29 | 2018-06-19 | 上海迪鲲机电科技有限公司 | Two grades of speed change electricity of integrated form drive assembly system and application process |
| CN109469714A (en) * | 2017-09-08 | 2019-03-15 | 广州市新域动力技术有限公司 | Two-shift automatic variable speed electric driving wheel assembly |
| CN110657206A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657208A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
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| US20070111837A1 (en) * | 2005-11-15 | 2007-05-17 | Madhusudan Raghavan | Electrically variable transmissions with three interconnected gearsets |
| CN202914645U (en) * | 2012-11-07 | 2013-05-01 | 中国汽车技术研究中心 | Double-planet-row two-gear speed change device |
| CN103953698A (en) * | 2014-04-30 | 2014-07-30 | 北京航空航天大学 | Electrically driven planetary gear transmission |
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| CN1463339A (en) * | 2001-05-30 | 2003-12-24 | 佳特克株式会社 | Gear shifter for automatic transmission |
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| US20070111837A1 (en) * | 2005-11-15 | 2007-05-17 | Madhusudan Raghavan | Electrically variable transmissions with three interconnected gearsets |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177512A (en) * | 2017-03-29 | 2018-06-19 | 上海迪鲲机电科技有限公司 | Two grades of speed change electricity of integrated form drive assembly system and application process |
| CN108177512B (en) * | 2017-03-29 | 2019-11-01 | 张建龙 | Two grades of speed change electricity of integrated form drive assembly system and application method |
| CN109469714A (en) * | 2017-09-08 | 2019-03-15 | 广州市新域动力技术有限公司 | Two-shift automatic variable speed electric driving wheel assembly |
| CN109469714B (en) * | 2017-09-08 | 2023-11-14 | 广州市新域动力技术有限公司 | Two-gear automatic speed-changing electric driving wheel assembly |
| CN107606080A (en) * | 2017-10-13 | 2018-01-19 | 中南林业科技大学 | A kind of seven grades of electric-controlled mechanical planetary automatic transmissions for automatic gear-box |
| CN107606080B (en) * | 2017-10-13 | 2023-11-14 | 中南林业科技大学 | Seven-gear electric control mechanical planetary automatic transmission for automatic gearbox |
| CN108050222A (en) * | 2017-12-08 | 2018-05-18 | 合肥工业大学 | One kind two keeps off electric vehicle power-driven system |
| CN108050222B (en) * | 2017-12-08 | 2021-04-02 | 合肥工业大学 | Two keep off electric automobile electric drive system |
| CN110657206A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657208A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657208B (en) * | 2018-06-29 | 2021-10-22 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657206B (en) * | 2018-06-29 | 2021-10-22 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
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| Publication number | Publication date |
|---|---|
| CN105387156B (en) | 2017-09-26 |
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