CN203906680U - Two-gear automatic transmission for electric vehicle - Google Patents
Two-gear automatic transmission for electric vehicle Download PDFInfo
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- CN203906680U CN203906680U CN201420170493.9U CN201420170493U CN203906680U CN 203906680 U CN203906680 U CN 203906680U CN 201420170493 U CN201420170493 U CN 201420170493U CN 203906680 U CN203906680 U CN 203906680U
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- output shaft
- clutch part
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- planet carrier
- input shaft
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- 230000005540 biological transmission Effects 0.000 title abstract description 10
- 238000000926 separation method Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model provides a two-gear automatic transmission for an electric vehicle. The two-gear automatic transmission for the electric vehicle comprises an input shaft, an output shaft, a ring gear, and a planet row comprising a planet carrier, a sun gear, and a plurality of planetary gears, wherein a normally open first clutch part (8) is respectively and fixedly connected with the planet carrier (7) and the output shaft (10), and is opened and closed to control the separation and connection between the planet carrier (7) and the output shaft (10), and a normally open second clutch part (9) is respectively and fixedly connected with the input shaft (3) and the output shaft (10), and is opened and closed to control the separation and connection between the input shaft (3) and the output shaft (10). In the scheme, few parts are used, and a set of planet rows and two clutches are used, so that the complexity of a control system is reduced, the transmission efficiency is improved, the spatial dimension and the center distance of the transmission are shortened, and the cost is saved.
Description
Technical field
The invention belongs to pure electric automobile speed changer structure field, especially relates to the two-shift automatic speed variator structure that is applicable to pure electric vehicle.
Background technique
In Vehicle Driving Cycle, motor is the manufacture link of power, and clutch is the transmission hinge of power, and speed changer is the link that realizes the distributed power of vehicle under different running condition.Speed changer is divided into manual transmission and automatic transmission.
Along with Chinese haze pollute day by day serious, country has put into effect some limits to the sale of the automobile of traditional combustion engine and has purchased policy, new-energy automobile has been put into effect to some encouragement policies, this makes domestic car load factory for example, at the automobile of some new energy of exploitation, hybrid vehicle, pure electric automobile simultaneously.
What pure electric automobile adopted both at home and abroad is the speed changer of primary speed-down structure, needs a kind of speed changer of new structure to carry out transferring power, to adapt to the power output of new-energy automobile, brings into play to greatest extent the characteristic of motor, thereby improves the power performance of car load.
Summary of the invention
For solving the problems of the technologies described above, the technological scheme that the invention adopts is: electric vehicle two-shift automatic speed variator, comprising:
One input shaft 3 and an output shaft 10, the axis coinciding of diaxon;
One fixed gear ring 5, is set on the shaft axis of input shaft 3 and output shaft 10;
One planet row, it comprises a planet carrier 7, a sun gear 6 and a plurality of planet wheel 4, sun gear 6 is fixedly installed on input shaft 3, planet carrier 7 and output shaft fixed connection, and a plurality of planet wheels are installed on planet carrier and often mesh with the internal tooth of sun gear 6 and gear ring 5 respectively;
The first clutch part 8 open in usual, it is fixedly connected with output shaft 10 with planet carrier 7 respectively, and can opening from separated between, Closed control planet carrier 7 and output shaft 10 and connecting by it;
The second clutch part 9 open in usual, it is fixedly connected with output shaft 10 with input shaft 3 respectively, and can opening from separated between, Closed control input shaft 3 and output shaft 10 and connecting by it.
Advantage and good effect that the invention has are:
1, this programme number of spare parts is few, adopts 1 cover planet row and two clutches, has reduced the complexity of control system.
2, the quantity due to engaging gear reduces, thereby has increased substantially transmission efficiency.
3, because motor can directly be exported and reverse gear, this programme directly output reverses gear, and has cancelled reverse gear mechanism, and common speed changer adopts reverse gear synchronizer and the idle pulley that reverses gear.
4, this scheme is owing to having adopted 1 cover planet row, and compact structure, has shortened the bulk of speed changer.
5, because planet row is interior engaging mechanism, compares and shortened centre distance with outer gearing, thereby shortened the centre distance of whole speed changer.
6, owing to having reduced the quantity of part, so manufacture cost has approximately reduced 60%-70%.
Accompanying drawing explanation
Fig. 1 is a kind of enforcement structural representation of the invention
Fig. 2 is that the another kind of the invention is implemented structural representation
In figure, 1 motor stator; 2 rotors; 3 input shafts; 4, planet wheel; 5 gear rings; 6 sun gears; 7 planet carriers; 8 first clutch part; 9 second clutch part; 10 output shafts;
Embodiment
Below in conjunction with Fig. 1 and Fig. 2, the specific embodiment of the invention is elaborated.
The function of speed changer is that the driving moment of motor is passed to back axle or differential mechanism, and in figure, the effect of each parts is as follows respectively:
Motor stator 1, it receives the electric power that car load battery is carried, 2 motions of drive motor rotor.
Rotor 2, it receives the driving moment of stator, driving moment is passed to the input shaft 3 of speed changer.
Input shaft 3 and the rotor 2 of speed changer are linked together, thereby make the moment of torsion of rotor output pass to speed changer.
Planet wheel 4, gear ring 5, sun gear 6, planet carrier 7, these four kinds of elements form planet row, carry-over moment.
Output shaft 10 is exported to differential mechanism or back axle by moment.
The first clutch part 8 open in usual, it is fixedly connected with output shaft 10 with planet carrier 7 respectively, and can opening from separated between, Closed control planet carrier 7 and output shaft 10 and connecting by it;
The second clutch part 9 open in usual, it is fixedly connected with output shaft 10 with input shaft 3 respectively, and can opening from separated between, Closed control input shaft 3 and output shaft 10 and connecting by it.
The first above-mentioned clutch part 8 and the second clutch part 9, can as shown in Figure 1, adopt the concrete form of clutch; Also can be as shown in Figure 2, with a set of, comprise that a tooth hub 11, a tooth cover 12, apportion tooth hub both sides two form in conjunction with the synchronizer of tooth (13,14) realizes, the combination tooth 14 that is tooth hub 11 and tooth cover 12 and one side forms the first clutch part 8 open in usual, tooth hub and tooth cover form the second clutch part 9 open in usual with the combination tooth 13 of opposite side, tooth hub 11 is fixedly connected with output shaft 10, the combination tooth 14 of the first clutch part is fixedly connected with planet carrier 7, and the combination tooth 13 of the second clutch part is fixedly connected with input shaft 3.
With reference to shown in table 1, this speed changer is how to realize two forward gears, two gears that fall back:
Table 1
One gear D1
During one gear, element 8 (the first clutch part) Operating In Persistent Current Mode, element 7 (planet carrier) and element 10 (output shaft) connect.
Power passes to element 6 (sun gear) by element 3 (motor input shaft), by element 4 (planet wheel), pass to element 7 (planet carrier), element 5 (gear ring) is to be fixed on case of transmission simultaneously, rotating speed is zero, element 7 (planet carrier) outputs power power to element 10 (output shaft) by element 8 (the first clutch part) like this, completes power output.
Power=> element 3=> element 6=> element 4=> element 7=> element 8=> element 10.
Two gear D2
During two gears, element 9 (the second clutch part) Operating In Persistent Current Mode, element 3 (input shaft) and element 10 (output shaft) connect.
Power passes to element 9 (the second clutch part) by element 3 (input shaft), thereby is directly passed to element 10 (output shaft)
Power=> element 9=> element 10.
Neutral P
Element 8 (the first clutch part), element 9 (the second clutch part) is not worked, and power is not exported.
R1 reverses gear
Motor reversal, power output stream is identical with D1 gear.
R2 reverses gear
Motor reversal, power output stream is identical with D2 gear.
Above the embodiment of the invention is had been described in detail, but described content is only the preferred embodiment of the invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the invention scope and improvement etc., within all should still belonging to this patent covering scope.
Claims (4)
1. electric vehicle two-shift automatic speed variator, comprising:
One input shaft (3) and an output shaft (10), the axis coinciding of diaxon;
One fixed gear ring (5), is set on the shaft axis of input shaft (3) and output shaft (10);
One planet row, it comprises a planet carrier (7), a sun gear (6) and a plurality of planet wheel (4), sun gear (6) is fixedly installed on input shaft (3), planet carrier (7) and output shaft fixed connection, a plurality of planet wheels are installed on planet carrier and often mesh with the internal tooth of sun gear (6) and gear ring (5) respectively;
The first clutch part (8) open in usual, it is fixedly connected with output shaft (10) with planet carrier (7) respectively, and can opening from separated between, Closed control planet carrier (7) and output shaft (10) and connecting by it;
The second clutch part (9) open in usual, it is fixedly connected with output shaft (10) with input shaft (3) respectively, and can opening from separated between, Closed control input shaft (3) and output shaft (10) and connecting by it.
2. speed changer according to claim 1, is characterized in that: also comprise housing, described gear ring is fixed in housing.
3. speed changer according to claim 1, is characterized in that: described the first clutch part (8) and the second clutch part (9) are normally open clutch.
4. speed changer according to claim 1, it is characterized in that: described the first clutch part (8) and the second clutch part (9) are by a set of tooth hub (11) that comprises, one tooth cover (12), two of apportion tooth hub both sides in conjunction with tooth (13, 14) form of synchronizer realizes, tooth hub (11) and tooth cover (12) form the first clutch part (8) open in usual with the combination tooth (14) of a side, tooth hub and tooth cover form the second clutch part (9) open in usual with the combination tooth (13) of opposite side, tooth hub (11) is fixedly connected with output shaft (10), the combination tooth (14) of the first clutch part is fixedly connected with planet carrier (7), the combination tooth (13) of the second clutch part is fixedly connected with input shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170493.9U CN203906680U (en) | 2014-04-09 | 2014-04-09 | Two-gear automatic transmission for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170493.9U CN203906680U (en) | 2014-04-09 | 2014-04-09 | Two-gear automatic transmission for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906680U true CN203906680U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420170493.9U Expired - Lifetime CN203906680U (en) | 2014-04-09 | 2014-04-09 | Two-gear automatic transmission for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906680U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912640A (en) * | 2014-04-09 | 2014-07-09 | 天津天海同步科技股份有限公司 | Automatic two-gear transmission for electric vehicles |
| CN110657207A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657202A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657200A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| WO2023060980A1 (en) * | 2021-10-13 | 2023-04-20 | 山东科技大学 | Two-gear transmission electric wheel |
| WO2024087534A1 (en) * | 2022-10-24 | 2024-05-02 | 浙江吉利控股集团有限公司 | Vehicle speed changing device and method, driving device, and vehicle |
-
2014
- 2014-04-09 CN CN201420170493.9U patent/CN203906680U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912640A (en) * | 2014-04-09 | 2014-07-09 | 天津天海同步科技股份有限公司 | Automatic two-gear transmission for electric vehicles |
| CN110657207A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657202A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657200A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657200B (en) * | 2018-06-29 | 2021-12-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657202B (en) * | 2018-06-29 | 2022-03-15 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| WO2023060980A1 (en) * | 2021-10-13 | 2023-04-20 | 山东科技大学 | Two-gear transmission electric wheel |
| WO2024087534A1 (en) * | 2022-10-24 | 2024-05-02 | 浙江吉利控股集团有限公司 | Vehicle speed changing device and method, driving device, and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 301600 Jinhai Road, Jinghai Development Zone, Jinghai County, Tianjin 5 Patentee after: TIANJIN TANHAS TECHNOLOGY Co.,Ltd. Address before: 301600 Jinhai Road, Jinghai Development Zone, Jinghai County, Tianjin 5 Patentee before: TIANJIN TANHAS TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |