CN209738811U - Single-motor pure electric power system and vehicle - Google Patents
Single-motor pure electric power system and vehicle Download PDFInfo
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- CN209738811U CN209738811U CN201822212843.4U CN201822212843U CN209738811U CN 209738811 U CN209738811 U CN 209738811U CN 201822212843 U CN201822212843 U CN 201822212843U CN 209738811 U CN209738811 U CN 209738811U
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- planet row
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Abstract
The utility model relates to an electric vehicle technical field, especially single motor pure electric power system and vehicle. The system comprises a driving motor, a planet row, a system output shaft, a first locking clutch, a second locking clutch and a first clutch, wherein the driving motor is connected with one end of the first locking clutch, the other end of the first locking clutch is connected with a sun gear of the planet row, one end of the first locking clutch, which is used for connecting the driving motor, is connected with the system output shaft through the first clutch, a planet carrier of the planet row is connected with one end of the second locking clutch, the other end of the second locking clutch is connected with one end of the first clutch, which is used for connecting the system output shaft, a gear ring of the planet row is locked on a shell, when the first locking clutch and the second locking clutch are loosened, the first clutch is combined to form a direct-drive mode, the first locking clutch and the second locking clutch are loosened, and the sun gear and the planet carrier do not synchronously rotate along with the first locking clutch and the second locking clutch, so that energy loss is reduced, and the electric energy utilization rate is improved.
Description
Technical Field
The utility model relates to an electric vehicle technical field, especially single motor pure electric power system and vehicle.
Background
The current pure electric power system mainly has motor direct drive system, and this direct drive motor system includes: the driving motor is directly connected with a vehicle drive axle to drive a vehicle, and in order to ensure the dynamic property of the vehicle, the driving motor usually adopts a low-rotating-speed and large-torque motor without a speed change device such as a gearbox or a reduction gearbox, so that the structure is simple, the energy transfer efficiency is higher, the endurance mileage is improved, but the direct drive system of the motor has larger requirements on the torque and the power of the motor, the weight of the motor is larger, and the cost is higher. Because the vehicle operating mode is various, direct drive system can't compromise high speed of a motor and big moment of torsion, leads to the motor can't work in high-efficient interval for a long time, and the motor is whole efficient not high, influences economic nature.
The Chinese invention patent application with the application publication number of CN108099594A discloses a dual-motor dual-mode pure electric system, wherein a first motor is connected with one end of a first clutch through a front planet row, the other end of the first clutch is connected with a planet carrier of a rear planet row, a second motor is connected with a sun gear of the rear planet row, a second clutch is arranged between the planet carrier and the sun gear of the rear planet row, a gear ring of the rear planet row is also provided with a locking clutch for locking the gear ring, and the output of the planet carrier of the rear planet row is directly connected to an output shaft. When the first clutch is disengaged, the electric-only system becomes a single motor drive system having two electric-only drive modes. When the second clutch is separated and the locking clutch is locked, the gear ring is locked, the sun gear and the planet carrier form a fixed speed ratio, the effects of speed reduction and torque increase are realized, the dynamic property of the whole vehicle is improved, and the mode is used for the working condition of vehicle starting acceleration or climbing; when the second clutch is combined and the locking clutch is separated, the gear ring idles, the planet carrier and the sun gear are locked at the moment, the planetary gear train rotates synchronously, power is directly output to the rear axle through the sun gear and the planet carrier to drive the whole vehicle, and the mode is suitable for high-speed road conditions. Although the single motor driving system can realize the motor direct drive mode, the sun gear and the planet carrier also synchronously rotate under the motor direct drive mode, the energy loss is increased, and the electric energy utilization rate is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a single motor pure electric power system and vehicle for solve the motor and directly drive also synchronous rotation of sun gear and planet carrier under the mode, increased energy loss, lead to the lower problem of electric energy utilization.
In order to realize that a single motor drives a vehicle to run, the problem that the energy loss is increased and the electric energy utilization rate is low due to the fact that a sun gear and a planet carrier synchronously rotate in a motor direct-drive mode is solved. The utility model provides a single-motor pure electric power system, including driving motor, planet row and system output shaft, still include first locking clutch, second locking clutch and first clutch, driving motor connects the one end of first locking clutch, the other end of first locking clutch is connected the sun gear that the planet was arranged, being used for of first locking clutch connects driving motor's one end is passed through first clutch connects system output shaft, the planet carrier that the planet was arranged is connected the one end of second locking clutch, the other end of second locking clutch is connected the one end that is used for connecting system output shaft of first clutch, the ring gear locking that the planet was arranged is on the casing.
The power system has the advantages that when the first locking clutch is locked, the second locking clutch is locked, and the first clutch is released, a first driving mode is formed; when the first locking clutch is released, the second locking clutch is released, and the first clutch is combined to form a second driving mode, the motor output in the second driving mode directly reaches the system output shaft, so that the second driving mode is a motor direct-drive mode, at the moment, the first locking clutch and the second locking clutch are released, and the sun gear and the planet carrier do not synchronously rotate along with the first locking clutch and the second locking clutch, so that the energy loss is reduced, and the electric energy utilization rate is improved; in addition, the cost is reduced by selecting a smaller torque driving motor through the speed reduction and torque increase effects of the planet row, the driving motor is in a high-efficiency area to work through different selections, the efficiency of the system is improved, the system can be divided into two braking recovery modes during braking, the braking recovery efficiency is higher, the economy is improved, and the driving range can be effectively increased.
Further, for simple implementation of power supply and control of the driving motor, the single-motor pure electric power system comprises a power battery and a motor controller, wherein the power battery is electrically connected with the driving motor through the motor controller.
Further, in order to facilitate the arrangement of a power system, the space utilization rate is improved, and meanwhile, the energy loss caused by non-coaxial arrangement is avoided, and the driving motor, the first locking clutch, the planet row, the second locking clutch and the first clutch are coaxially arranged.
The utility model provides a vehicle, which comprises a vehicle body and a single-motor pure electric power system, the single-motor pure electric power system comprises a driving motor, a planet row and a system output shaft, and also comprises a first locking clutch, a second locking clutch and a first clutch, the driving motor is connected with one end of the first locking clutch, the other end of the first locking clutch is connected with the sun gear of the planet row, one end of the first locking clutch used for connecting the driving motor is connected with the system output shaft through the first clutch, the planet carrier of the planet row is connected with one end of the second locking clutch, the other end of the second locking clutch is connected with one end, used for connecting a system output shaft, of the first clutch, and the gear ring of the planet row is locked on the shell; when the first lock-up clutch is locked, the second lock-up clutch is locked, and the first clutch is released during the use of the vehicle, a first driving mode is formed; when the first locking clutch is released, the second locking clutch is released, and the first clutch is combined to form a second driving mode, the motor output directly reaches the system output shaft in the second driving mode, so that the second driving mode is a motor direct-drive mode, at the moment, the first locking clutch and the second locking clutch are released, the sun gear and the planet carrier do not synchronously rotate along with the first locking clutch and the second locking clutch, the energy loss is reduced, and the electric energy utilization rate is improved.
Further, in order to simply realize the power supply and control of the driving motor, the single-motor pure electric system in the vehicle comprises a power battery and a motor controller, wherein the power battery is electrically connected with the driving motor through the motor controller.
Further, in order to facilitate the layout of the power system, the space utilization rate is improved while avoiding the energy loss of the non-coaxial arrangement, and the driving motor, the first lock-up clutch, the planetary row, the second lock-up clutch and the first clutch in the vehicle are coaxially arranged.
Drawings
Fig. 1 is a configuration diagram of a single motor pure electric power system of the present invention;
Wherein, 1, driving a motor; 2. a first lock-up clutch; 3. a second lock-up clutch; 4. a sun gear; 5. a planet carrier; 6. a ring gear; 7. a power battery; 8. a motor controller; 9. a first clutch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the vehicle is as follows:
The utility model provides a vehicle, vehicle body and a single motor pure electric power system, wherein, this single motor pure electric power system, as shown in fig. 1, includes driving motor 1, planet row, system output shaft, first lock-up clutch 2, second lock-up clutch 3 and first clutch 9; a sun gear 4, a planet carrier 5 and a gear ring 6 are arranged in the planet row, the driving motor 1 is connected with one end of a first locking clutch 2, the other end of the first locking clutch 2 is connected with the sun gear 4 in the planet row, and one end of the first locking clutch 2, which is used for connecting the driving motor 1, is connected with a system output shaft through a first clutch 9; the planet carrier 5 in the planet row is connected with one end of the second locking clutch 3, and the other end of the second locking clutch 3 is connected with one end of the first clutch 9 used for connecting the system output shaft; the ring gear 6 in the planet row is locked to the housing.
The ring gear 6 is locked to a housing, which may be a vehicle housing, a planetary gear set housing or a drive train housing.
As shown in fig. 1, the single-motor pure electric power system further comprises a power battery 7 and a motor controller 8, wherein the power battery 7 is electrically connected with the driving motor 1 through the motor controller 8.
As shown in fig. 1, the drive motor 1, the first lock clutch 2, the planetary gear set, the second lock clutch 3, and the first clutch 9 are coaxially disposed.
During the use process of the vehicle, the power system can realize two driving working modes and two braking working modes:
1. a first drive mode:
when the first locking clutch 2 is locked, the second locking clutch 3 is locked, and the first clutch 9 is released, a first driving mode is formed; the gear ring 6 is always in a locked state, the sun gear 4 and the planet carrier 5 form a fixed speed ratio, the effects of speed reduction and torque increase are achieved, the dynamic property of the whole vehicle is improved, and the first driving mode is used for vehicle starting acceleration or climbing working conditions.
2. The second driving mode:
When the first locking clutch 2 is released, the second locking clutch 3 is released, and the first clutch 9 is combined, a second driving mode is formed, and the motor output directly reaches the system output shaft in the second driving mode, so that the second driving mode is a motor direct driving mode; at the moment, the output shaft of the motor is directly connected with the output shaft of the system, the planet row does not rotate along with the system, the speed ratio is 1, power is directly output to the rear axle by the motor to drive the whole vehicle, and the second driving mode is suitable for high-speed road conditions.
3. First brake recovery mode:
when the first locking clutch 2 is released, the second locking clutch 3 is released, the first clutch 9 is combined, the planet row does not participate in power transmission at the moment, the speed ratio is 1, the driving motor 1 provides braking torque in the first braking recovery mode, the braking recovery mode is similar to braking feedback under two gears, and the braking recovery mode is suitable for braking recovery under the working condition when the vehicle speed is high.
4. The second brake recovery mode:
The first locking clutch 2 is locked, the second locking clutch 3 is locked, the first clutch 9 is separated, the gear ring 6 is always in a locked state, the sun gear 4 and the planet carrier 5 form a fixed speed ratio, and at the moment, the brake feedback similar to that of the first gear is realized, so that the brake device is suitable for the condition of large brake torque demand.
when the vehicle starts to brake at a high speed and brakes to a lower speed, the speed ratio of the first brake recovery mode is 1, so that the brake gear shifting can be realized through the friction-sliding switching working modes of the two locking clutches when the output torque of the transmission cannot meet the braking requirement of the vehicle, and the low-speed and high-torque braking requirement is ensured.
Single motor pure electric power system embodiments:
The utility model provides a single motor pure electric power system, this single motor pure electric power system have carried out specific description in above-mentioned vehicle embodiment, and this single motor pure electric power system embodiment is no longer repeated.
The present invention has been described with reference to specific embodiments, but the present invention is not limited to the described embodiments. The technical means in the above embodiments are changed, replaced, modified in a manner that is easily imaginable to those skilled in the art, and the functions of the technical means are basically the same as those of the present invention, and the purpose of the present invention is also basically the same, so that the technical solution formed by fine tuning the above embodiments still falls into the protection scope of the present invention.
Claims (6)
1. The single-motor pure electric power system comprises a driving motor, a planet row and a system output shaft, and is characterized by further comprising a first locking clutch, a second locking clutch and a first clutch, wherein the driving motor is connected with one end of the first locking clutch, the other end of the first locking clutch is connected with a sun gear of the planet row, one end of the first locking clutch, which is used for connecting the driving motor, is connected with the system output shaft through the first clutch, a planet carrier of the planet row is connected with one end of the second locking clutch, the other end of the second locking clutch is connected with one end, which is used for connecting the system output shaft, of the first clutch, and a gear ring of the planet row is locked on a shell.
2. the single-motor electric-only power system of claim 1, comprising a power battery and a motor controller, the power battery being electrically connected to the drive motor through the motor controller.
3. The single-motor pure electric powertrain of claim 1 or 2, wherein the drive motor, the first lockup clutch, the planetary row, the second lockup clutch, and the first clutch are coaxially disposed.
4. A vehicle comprises a vehicle body and a single-motor pure electric power system, wherein the single-motor pure electric power system comprises a driving motor, a planet row and a system output shaft, characterized in that said single-motor electric pure-power system further comprises a first lock-up clutch, a second lock-up clutch, and a first clutch, the driving motor is connected with one end of the first locking clutch, the other end of the first locking clutch is connected with the sun gear of the planet row, one end of the first locking clutch used for connecting the driving motor is connected with the system output shaft through the first clutch, the planet carrier of the planet row is connected with one end of the second locking clutch, the other end of the second locking clutch is connected with one end, used for being connected with a system output shaft, of the first clutch, and the gear ring of the planet row is locked on the shell.
5. the vehicle of claim 4, characterized in that the single-motor electric powertrain includes a power battery and a motor controller, the power battery being electrically connected to the drive motor through the motor controller.
6. the vehicle according to claim 4 or 5, characterized in that the drive motor, the first lock-up clutch, the planetary row, the second lock-up clutch, and the first clutch are coaxially disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212843.4U CN209738811U (en) | 2018-12-26 | 2018-12-26 | Single-motor pure electric power system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212843.4U CN209738811U (en) | 2018-12-26 | 2018-12-26 | Single-motor pure electric power system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209738811U true CN209738811U (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822212843.4U Active CN209738811U (en) | 2018-12-26 | 2018-12-26 | Single-motor pure electric power system and vehicle |
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| CN (1) | CN209738811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361412A (en) * | 2018-12-26 | 2020-07-03 | 郑州宇通客车股份有限公司 | Single-motor pure electric power system and vehicle |
-
2018
- 2018-12-26 CN CN201822212843.4U patent/CN209738811U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361412A (en) * | 2018-12-26 | 2020-07-03 | 郑州宇通客车股份有限公司 | Single-motor pure electric power system and vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |