CN215398143U - Low-cost planet row power split hybrid power driving device - Google Patents
Low-cost planet row power split hybrid power driving device Download PDFInfo
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- CN215398143U CN215398143U CN202122217042.9U CN202122217042U CN215398143U CN 215398143 U CN215398143 U CN 215398143U CN 202122217042 U CN202122217042 U CN 202122217042U CN 215398143 U CN215398143 U CN 215398143U
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model relates to the technical field of vehicle driving, in particular to a low-cost planet row power split hybrid power driving device which comprises an engine, a torsional vibration damper, a motor, a power split device and a gear shifting device, wherein the engine is fixedly connected with the input end of the torsional vibration damper, and the output end of the torsional vibration damper is fixedly connected with a planet carrier assembly of the power split device; the motor and the engine are connected through the power dividing device to output power outwards, and the gear shifting device is connected with the power dividing device and can respectively adjust the power output of the engine and the power output of the motor. The device has few components and does not occupy space, can easily realize an engine driving and motor generating mode and an engine and motor combined driving mode, can achieve the energy-saving and emission-reducing effects of a double-motor planetary power distribution technology at lower cost, not only eliminates idle loss of a working condition engine and a transmission system thereof driven by the motor alone, but also has high flexibility.
Description
Technical Field
The utility model relates to the technical field of vehicle driving and control, in particular to a low-cost planet row power split hybrid power driving device.
Background
The double-motor planetary gear row power splitting technology couples the power of the engine and the power of the generator through the power splitting planetary gear row, and can realize continuous adjustment of output rotating speed, namely stepless speed change. And the motor is matched with a driving motor, so that the motor can be driven by pure electricity when the vehicle runs at a low speed, the exhaust emission of the engine running at the low speed is reduced, and the engine is prevented from working at a low efficiency point. And when the vehicle speed is medium, the working rotating speed interval of the engine is optimized by using the generator, the output torque of the engine is compensated or partially recovered by using the generator and the driving motor, and the high-efficiency working interval of the engine is fully utilized. Therefore, the double-motor planet row power splitting technology can effectively reduce the oil consumption of the whole vehicle and the exhaust emission.
However, the double-motor planetary power distribution scheme has high cost due to the two sets of motors and power supply and control modules thereof, and has high development technology difficulty, long period and high risk, so that industrial resources of the existing transmission and driving technology cannot be effectively utilized, and the market competitiveness is weak.
Therefore, a technology with low cost and good resource inheritance for the existing transmission and drive technology industries is urgently needed to promote the marketization of the planetary power splitting technology.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art and provides a low-cost planetary row power-division hybrid power driving device, and the fixed speed ratio independent driving of an engine, the fixed speed ratio independent driving of a motor and the power coupling stepless speed regulation rear hybrid power driving of the engine and the motor are realized by matching a gear shifting device with a power-division planetary row, so that the energy-saving and emission-reduction effects of the dual-motor planetary row power-division technology are realized at lower cost.
The above purpose is realized by the following technical scheme:
a low-cost planet row power split hybrid power driving device comprises an engine, a torsional vibration damper, a motor, a power split device and a gear shifting device, wherein the engine is fixedly connected with the input end of the torsional vibration damper, and the output end of the torsional vibration damper is fixedly connected with a planet carrier assembly of the power split device; the motor and the engine are connected through the power dividing device to output power outwards, and the gear shifting device is connected with the power dividing device and can respectively adjust the power output of the engine and the power output of the motor.
Further, the power split device comprises a sun gear, a planet gear and a gear ring output shaft, and the motor is fixedly connected with the sun gear.
Further, the gear shifting device comprises a gear shifting executing mechanism, a shifting fork, a gear sleeve, a gear hub, engine combination teeth and motor combination teeth; the gear hub is fixedly connected with the machine body of the driving device, the engine combination gear is fixedly connected with the planet carrier assembly, and the motor combination gear is fixedly connected with the motor; the gear sleeve is meshed with the gear hub through a sliding spline to transmit torque, and can axially slide under the pushing of the shifting fork; the shifting fork is driven by the gear shifting executing mechanism to slide axially.
Further, the gear sleeve comprises a left position, a middle position and a right position;
in the left position, the gear sleeve is simultaneously meshed with the gear hub and the engine combining gear;
when in neutral position, the gear sleeve is only meshed with the gear hub;
in the right position, the gear sleeve is simultaneously engaged with the gear hub and the motor engagement teeth.
Furthermore, the gear shifting device can be a multi-plate friction clutch/brake or an electromagnetic clutch and the like, and is characterized in that the common end of the gear shifting device is fixedly connected with the engine body, the other end of the gear shifting device is respectively connected with the engine and the motor, and the engine brake and the motor brake can be respectively realized through the gear shifting device.
Furthermore, the power splitting device further comprises a cooling and lubricating device power take-off gear integrated with the gear ring output shaft, the cooling and lubricating device is connected with the cooling and lubricating device on the cooling and lubricating device power take-off gear, and the cooling and lubricating device drives an oil pump/water pump to operate by taking the gear ring output shaft as a power source so as to transmit a cooling medium to a part of the module, which needs heat dissipation and lubrication.
Furthermore, the gear ring output shaft can directly transmit power to the whole vehicle speed reduction drive axle.
Furthermore, the transmission device also comprises an interface used for connecting a transmission or other driving modules, and the gear ring output shaft can be coupled with the transmission or other driving modules and then transmits power to the whole vehicle speed reduction drive axle.
Advantageous effects
According to the low-cost planetary row power distribution driving device provided by the utility model, the fixed speed ratio independent driving of the engine, the fixed speed ratio independent driving of the motor and the power coupling stepless speed regulation rear hybrid driving of the engine and the motor are realized by matching the gear shifting device with the power distribution planetary row, so that the energy-saving and emission-reducing effects of the double-motor planetary row power distribution technology are realized at lower cost. The idle loss of the motor and the transmission system thereof under the condition of independent driving of the engine is eliminated. Because the driving device has few components, low cost and small occupied space, a transmission or other driving modules can be selected and matched by a client at the output end of the driving device, the whole vehicle factory can utilize the resources and technical reserves of the transmission or the driving modules, and the flexibility of system matching is improved.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a low-cost planetary row power-splitting driving device according to the present invention;
FIG. 2 is a schematic structural view of a preferred embodiment of a shifting apparatus of a low cost planetary row power split drive according to the present invention;
fig. 3 is a schematic structural diagram of a power splitting device of a low-cost planetary power splitting driving device according to a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a power transmission path of a motor in a single driving mode of the low-cost planetary power split driving device according to the present invention;
FIG. 5 is a schematic diagram of a power transmission path of a low-cost planetary power split drive according to the present invention in an engine-only driving mode;
FIG. 6 is a schematic diagram of a power transmission path of an engine and motor combined driving mode of the low-cost planetary power split driving device according to the present invention;
fig. 7 is a schematic diagram of the power transmission path of the engine-driven and motor-generating modes of the low-cost planetary power split driving device according to the utility model.
Graphic notation:
1-engine, 2-torsional vibration damper, 3-gear shifting device, 301-gear shifting actuating mechanism, 302-gear hub, 303-engine combined tooth, 304-gear sleeve, 305-motor combined tooth, 306-shifting fork, 4-motor, 5-power dividing device, 501-planet carrier component, 502-sun gear, 503-gear ring output shaft, 504-cooling lubricating device power take-off gear, 505-planet gear and 6-cooling lubricating device.
Detailed Description
The utility model is explained in further detail below with reference to the figures and preferred embodiments. The described embodiments are only some embodiments of the utility model, not all embodiments. In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "fixedly attached", "connected", "coupled", and "integrated" are to be understood in a broad sense, for example, "fixedly attached" may be a welded connection, or may be connected by an intermediate medium such as a spline. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations. Reference throughout this specification to apparatus or components, in embodiments or applications, means or components must be constructed and operated in a particular orientation and therefore should not be construed as limiting the present embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a low-cost planetary row power split hybrid drive device includes an engine 1, a torsional vibration damper 2, an electric motor 4, a power split device 5 and a gear shifting device 3, where the engine 1 is fixedly connected to an input end of the torsional vibration damper 2, and an output end of the torsional vibration damper 2 is fixedly connected to the power split device 5 and a planet carrier assembly 501; the motor 4 is connected with the engine 1 through the power dividing device 5 to output power outwards, and the gear shifting device 3 is connected with the power dividing device 5 to adjust the power output of the engine 1 and the power output of the motor 4 respectively.
As shown in fig. 3, as an optimization of the power split device 5 in the present embodiment, the power split device 5 includes a sun gear 502, a planet gear 505, and a ring gear output shaft 503, and the motor 4 is fixedly connected to the sun gear 502.
As shown in fig. 2, as an optimization of the shifting device 3, the shifting device 3 includes a shift actuator 301, a shift fork 306, a gear sleeve 304, a gear hub 302, an engine engaging tooth 303, and a motor engaging tooth 305; the gear hub 302 is fixedly connected with the body of the driving device, the engine combining gear 303 is fixedly connected with the planet carrier assembly 501, and the motor combining gear 305 is fixedly connected with the motor 4; the gear sleeve 304 is meshed with the gear hub 302 through a sliding spline to transmit torque, and can slide axially under the pushing of the shifting fork 306; the shifting fork 306 is driven by the gear shifting executing mechanism 301 to slide axially.
The gear sleeve 304 comprises three stations of a left position, a middle position and a right position, and the three stations comprise the following steps:
in the left position, the gear sleeve 304 is simultaneously engaged with the gear hub 302 and the engine engaging teeth 303;
in the neutral position, the gear sleeve 304 only meshes with the gear hub 302;
in the right position, the toothed sleeve 304 engages both the toothed hub 302 and the motor 4 coupling teeth.
The three station positions of the gear sleeve 404 can realize the switching of the driving mode of the driving module, including a motor fixed speed ratio single driving mode, an engine fixed speed ratio single driving mode and a hybrid driving mode, and the adjustment and the corresponding modes of the specific structure.
The gear shifting device 3 in this embodiment may be a multi-plate friction clutch/brake or an electromagnetic clutch, and is characterized in that a common end is fixedly connected to the engine body, and the other end is connected to the engine 1 and the motor 4, respectively, so that the engine brake and the motor brake can be realized by the gear shifting device 3, respectively.
As shown in fig. 1 and 3, as an optimization of the present embodiment, the present invention further includes a cooling and lubricating device 6, where the cooling and lubricating device 6 is connected to the cooling and lubricating device power take-off gear 504 of the power split device 5, the cooling and lubricating device power take-off gear 504 is integrated with the gear ring output shaft 503, and the cooling and lubricating device 6 drives its own oil pump/water pump to operate by using the gear ring output shaft 503 as a power source, so as to transmit the stored cooling medium to a part of the module, including an electric motor and the like, which needs heat dissipation and lubrication.
As a further optimization of the embodiment, the gear ring output shaft 503 can directly transmit power to the whole vehicle speed reduction drive axle; or an interface used for connecting a transmission or other driving modules is arranged on the driving module, and after connection, the gear ring output shaft 503 can be coupled with the transmission or other driving modules and then transmits power to the finished automobile speed reduction drive axle.
As an explanation of the driving mode of the driving module, there are three main driving modes, including a motor fixed speed ratio single driving mode, an engine fixed speed ratio single driving mode and a hybrid driving mode, and the adjustment of the specific structure and the explanation of the corresponding mode are as follows:
(1) the engine fixed-speed-ratio single drive mode drive force transmission path is as follows:
as shown in fig. 5, the gear sleeve 304 of the gear shifting device 3 is in the right position, and the sun gear 502 and the motor 4 fixedly connected thereto of the power split device 5 are fixedly connected to the machine body through the gear hub 302 and the motor coupling gear 305 of the gear shifting device 3, and cannot rotate. The power output by the engine 1 is transmitted to a planet carrier assembly 501 in the power split device 5 through the torsional damper 2, and the power is output through a ring gear output shaft 503 to drive the vehicle to run.
(2) The motor fixed-speed-ratio single drive mode drive force transmission path is as follows:
as shown in fig. 4, the gear sleeve 304 of the gear shifting device 3 is in the left position, and the carrier assembly 501 of the power split device 5, the engine 1 fixedly connected therewith, and the torsional vibration damper 2 are fixedly connected with the machine body through the gear hub 302 and the engine combining teeth 303 of the gear shifting device 3, and cannot rotate. The power output by the motor 4 is transmitted to the planet gears 505 in the planet carrier assembly 501 through the sun gear 502 in the power split device 5, and the planet gears 505 drive the ring gear output shaft 503 to output power to drive the vehicle to run.
(3) The drive force transmission path in hybrid drive mode 1 is as follows:
as shown in fig. 6, the sleeve gear 304 of the shifting device 3 is in the neutral position, and all the components of the power split device 5 can rotate. The power output by the engine 1 is transmitted to a planet carrier assembly member 501 in the power dividing device 5 through the torsional vibration damper 2, the power output by the motor 4 is transmitted to the planet carrier assembly member 501 through a sun gear 502 in the power dividing device 5, the planet carrier assembly member couples the power output by the engine 1 and the power output by the motor 4 and outputs the power through a gear ring output shaft 503 to drive the vehicle to run, and the engine and the motor are driven together in the mode.
(4) Hybrid drive mode 2 the drive force transmission path is as follows:
as shown in fig. 7, the sleeve gear 304 of the shifting device 3 is in the neutral position, and all the components of the power split device 5 can rotate. The power output by the engine 1 is transmitted to a planetary carrier assembly 501 in the power split device 5 through the torsional damper 2, a part of the power is output through a gear ring output shaft 503 engaged with the planetary carrier assembly 501 to drive the vehicle to run, and the other part of the power is transmitted to the motor 4 through a sun gear 502 engaged with the planetary carrier assembly 501 to drive the motor 4 to generate electricity. In this mode, the engine is driven and the motor generates power.
The above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. A low-cost planet row power split hybrid power driving device is characterized by comprising an engine, a torsional vibration damper, a motor, a power split device and a gear shifting device, wherein the engine is fixedly connected with the input end of the torsional vibration damper, and the output end of the torsional vibration damper is fixedly connected with a planet carrier assembly of the power split device; the motor and the engine are connected through the power dividing device to output power outwards, and the gear shifting device is connected with the power dividing device and can respectively adjust the power output of the engine and the power output of the motor.
2. The low-cost planetary power split hybrid drive of claim 1, wherein the power split device comprises a sun gear, a planet gear and a ring gear output shaft, and the motor is fixedly connected with the sun gear.
3. A low cost planetary row power split hybrid drive as claimed in claim 2, wherein said shifting means comprises a shift actuator, a shift fork, a sleeve gear, a hub gear, engine engaging teeth and motor engaging teeth; the gear hub is fixedly connected with the machine body of the driving device, the engine combination gear is fixedly connected with the planet carrier assembly, and the motor combination gear is fixedly connected with the motor; the gear sleeve is meshed with the gear hub through a sliding spline to transmit torque, and can axially slide under the pushing of the shifting fork; the shifting fork is driven by the gear shifting executing mechanism to slide axially.
4. A low cost planetary row power split hybrid drive as claimed in claim 3 wherein said gear sleeve comprises three stations, left, center and right;
in the left position, the gear sleeve is simultaneously meshed with the gear hub and the engine combining gear;
when in neutral position, the gear sleeve is only meshed with the gear hub;
in the right position, the gear sleeve is simultaneously engaged with the gear hub and the motor engagement teeth.
5. The low-cost planet row power splitting hybrid driving device according to claim 2, wherein the power splitting device further comprises a cooling and lubricating device power take-off gear, the cooling and lubricating device power take-off gear is integrated with the gear ring output shaft, a cooling and lubricating device is connected to the cooling and lubricating device power take-off gear, and the cooling and lubricating device takes the gear ring output shaft as a power source and drives an oil pump/water pump to operate so as to transmit a cooling medium to a part of the module which needs heat dissipation and lubrication.
6. A low cost planetary power split hybrid drive as in claim 2 wherein the ring gear output shaft can directly transfer power to the entire vehicle reduction transaxle.
7. The low-cost planetary power split hybrid drive unit according to claim 6, further comprising an interface for connecting a transmission or other drive modules, wherein the ring gear output shaft can be coupled with the transmission or other drive modules to transmit power to the entire vehicle reduction transaxle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122217042.9U CN215398143U (en) | 2021-09-13 | 2021-09-13 | Low-cost planet row power split hybrid power driving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122217042.9U CN215398143U (en) | 2021-09-13 | 2021-09-13 | Low-cost planet row power split hybrid power driving device |
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| CN215398143U true CN215398143U (en) | 2022-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076320A (en) * | 2022-05-23 | 2022-09-20 | 一汽解放汽车有限公司 | Power system and vehicle |
| CN115214337A (en) * | 2022-06-09 | 2022-10-21 | 一汽解放汽车有限公司 | Hybrid power system |
-
2021
- 2021-09-13 CN CN202122217042.9U patent/CN215398143U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076320A (en) * | 2022-05-23 | 2022-09-20 | 一汽解放汽车有限公司 | Power system and vehicle |
| CN115214337A (en) * | 2022-06-09 | 2022-10-21 | 一汽解放汽车有限公司 | Hybrid power system |
| CN115214337B (en) * | 2022-06-09 | 2024-06-04 | 一汽解放汽车有限公司 | Hybrid power system |
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