CN215971088U - Single-motor planetary power distribution hybrid power driving module - Google Patents
Single-motor planetary power distribution hybrid power driving module Download PDFInfo
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- CN215971088U CN215971088U CN202122210310.4U CN202122210310U CN215971088U CN 215971088 U CN215971088 U CN 215971088U CN 202122210310 U CN202122210310 U CN 202122210310U CN 215971088 U CN215971088 U CN 215971088U
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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 single-motor planet row power split hybrid power driving module 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 adjust the power output of the engine. The driving module has few components and small occupied 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 higher flexibility.
Description
Technical Field
The utility model relates to the technical field of vehicle driving and control, in particular to a single-motor planet row power split hybrid power driving module.
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 single-motor planetary row power-division hybrid power driving module, multiple working modes such as direct drive of an engine, independent drive of a fixed speed ratio of the motor and hybrid power drive after the engine and the motor are power-coupled and stepless speed regulation can be realized by matching a gear shifting device with a power-division planetary row, and the energy-saving and emission-reduction effects of a double-motor planetary row power-division technology are realized at lower cost.
The above purpose is realized by the following technical scheme:
a single-motor planet row power split hybrid power driving module 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 the power split device and a planet carrier assembly; 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 adjust the power output of the engine.
Further, the power dividing device comprises a sun gear, a planet gear and a gear ring output shaft, and the motor is fixedly connected with the sun gear; the gear ring output shaft is connected with the gear shifting device.
Furthermore, the gear shifting device comprises a gear shifting executing mechanism, a shifting fork, a gear sleeve, a gear hub, a machine body combination gear and an output end combination gear; the gear hub is fixedly connected with the planet carrier assembly, the machine body combination teeth are fixedly connected with the machine body of the driving module and cannot rotate, and the output end combination teeth are fixedly connected with the gear ring output shaft; 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;
when the gear sleeve is in a left position, the gear sleeve is simultaneously meshed with the gear hub and the machine body combined gear;
when in neutral position, the gear sleeve is only meshed with the gear hub;
and when the gear sleeve is positioned at the right position, the gear sleeve is simultaneously meshed with the gear hub and the output end combined gear.
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, the other end of the gear shifting device is respectively connected with the engine body and the output end, and the engine can be braked and the engine can be fixedly connected with the output end 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 single-motor planetary row power-division hybrid power driving module provided by the utility model, the modes of direct driving of an engine, independent driving of a fixed speed ratio of the motor, hybrid power driving after stepless speed regulation of the power coupling of the engine and the motor are realized by matching the gear shifting device with the power-division planetary row, and the like, so that the energy-saving and emission-reduction effects of a double-motor planetary row power-division technology are achieved at lower cost. The idle loss of the motor and the transmission system thereof under the condition of single driving 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 single motor planetary row power split hybrid power drive module according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a preferred embodiment of a shifting apparatus of a single motor planetary row power split hybrid drive module according to the present invention;
FIG. 3 is a schematic structural diagram of a power splitting device of a single motor planetary power splitting hybrid driving module according to a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a power transmission path of a hybrid power driving mode 1 of a single motor planetary row power split hybrid power driving module according to the present invention;
FIG. 5 is a schematic diagram of a power transmission path of a single motor planetary row power split hybrid drive module hybrid drive mode 2 according to the present invention;
FIG. 6 is a schematic diagram of a power transmission path in a direct drive mode of an engine of a single motor planetary power split hybrid power drive module according to the present invention;
FIG. 7 is a schematic diagram of a power transmission path of a single motor planetary row power split hybrid power driving module in a motor single driving mode according to the utility model.
Graphic notation:
1-engine, 2-torsional vibration damper, 3-motor, 4-gear shifting device, 401-gear shifting actuating mechanism, 402-shifting fork, 403-engine combined tooth, 404-gear sleeve, 405-gear hub, 406-output end combined tooth, 5-power split 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 single-motor planetary-row power-split hybrid drive module includes an engine 1, a torsional vibration damper 2, a motor 3, a power split device 5 and a gear shifting device 4, 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 3 is connected with the engine 1 through the power dividing device 5 to output power outwards, and the gear shifting device 4 is connected with the power dividing device 5 to adjust the power output of the engine.
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 3 is fixedly connected to the sun gear 502; the ring gear output shaft 503 is connected to the shifting device 4.
As shown in fig. 2, as an optimization of the gear shifting device 4, the gear shifting device 4 comprises a gear shifting actuator 401, a shifting fork 402, a body coupling tooth 403, a gear sleeve 404, a gear hub 405 and an output end coupling tooth 406; the gear hub 405 is fixedly connected with the planet carrier assembly 501, the machine body combination tooth 403 is fixedly connected with the machine body of the driving module and cannot rotate, and the output end combination tooth 406 is fixedly connected with the gear ring output shaft 503; the gear sleeve 404 can be meshed with the gear hub 405 through a sliding spline to transmit torque, and can slide axially under the pushing of the shifting fork 402; the shifting fork 402 is driven by the gear shifting executing mechanism 401 to slide axially.
The gear sleeve 404 includes three stations of left position, middle position and right position, including:
in the left position, the gear sleeve 404 is simultaneously meshed with the gear hub 405 and the body combining teeth 403;
in the neutral position, the gear sleeve 404 is only meshed with the gear hub 405;
in the right position, the gear sleeve 404 simultaneously engages the gear hub 405 and the output coupling teeth 406.
The three station positions of the gear sleeve 404 can realize the switching of the driving modes of the driving module, including a motor fixed speed ratio single driving mode, an engine direct driving mode and a hybrid driving mode.
The gear shifting device 4 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, and the other end is connected to the engine body and the output end, respectively, and the engine is braked and the engine is fixedly connected to the output end by the gear shifting device 4.
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, an engine, etc., 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 driving modes, including a motor fixed speed ratio single driving mode, an engine direct driving mode and a hybrid driving mode, and the explanation of the adjustment and corresponding modes of the specific structure is as follows:
(1) in the hybrid drive mode 1, the drive force transmission path is as follows:
as shown in fig. 4, the gear sleeve 404 of the gear shifting device 4 is in the neutral position, and when the vehicle torque demand is large and the battery pack is sufficiently charged, the electric motor 3 is in the driving state, and the power output by the engine 1 is transmitted to the planet carrier assembly 501 of the power split device 5 through the torsional damper 2. The power output by the motor 3 is transmitted to the planet carrier assembly member 501 through the sun gear 502 in the power split device 5, the planet carrier assembly member 501 couples the power output by the engine 1 and the motor 3 and then outputs the power through the output shaft 503 of the ring gear to drive the vehicle to run, and at the moment, the engine and the motor drive together. If the torque demand of the vehicle is small and the battery pack is in a power-deficient state, the motor 3 is in a power generation state, the power output by the engine 1 is transmitted to the planet carrier assembly 501 in the power splitting device 5 through the torsional damper 2, a part of the power is output through the gear ring output shaft 503 meshed with the planet carrier assembly 501 to drive the vehicle to run, the other part of the power is transmitted to the motor 3 through the sun gear 502 meshed with the planet carrier assembly 501 to drive the motor 3 to generate power, and at the moment, the engine is driven and the motor generates power.
(2) Hybrid drive mode 2 the drive force transmission path is as follows:
as shown in fig. 5, the gear sleeve 404 of the gear shifting device 4 is in the right position, the planet carrier assembly 501 of the power split device 5 is fixedly connected with the ring gear output shaft 503, and due to the inherent characteristics of the planet row, the planet carrier assembly 501, the ring gear output shaft 503 and the sun gear 502 of the power split device 5 are integrated to operate at the same rotation speed. The power output by the engine 1 and the motor 3 is directly output through the power splitting device 5 to drive the vehicle to run, and at the moment, the motor 3 and the engine 1 are both in a direct gear. Further, if the battery pack is low in electric quantity and the torque demand of the whole vehicle is low, the motor 3 can be switched from the driving mode to the power generation mode, part of the power output by the engine 1 is divided by the power dividing device 5 to drive the vehicle to run, and the other part of the power is used for driving the motor 3 to generate power.
(3) The driving force transmission path of the direct drive mode of the engine is as follows:
as shown in fig. 6, the gear sleeve 404 of the gear shifting device 4 is in the right position, the planet carrier assembly 501 of the power split device 5 is fixedly connected with the ring gear output shaft 503, and due to the inherent characteristics of the planet row, the planet carrier assembly 501, the ring gear output shaft 503 and the sun gear 502 of the power split device 5 are integrated to operate at the same rotation speed. The power output by the engine 1 is output through the torsional damper 2 and the power split device 5 and drives the vehicle to run.
(4) The motor-individual drive mode drive force transmission path is as follows:
as shown in fig. 7, the gear sleeve 404 of the gear shifting device 4 is in the left position, and the engine 1 and the planet carrier assembly 501 connected with the engine are fixedly connected with the machine body through the gear hub 405, the gear sleeve 404 and the machine body combining teeth 403, and cannot rotate. The power output by the motor 3 is transmitted to the ring gear output shaft 503 via the sun gear 502 and the planet carrier assembly member 501, and is output to drive the vehicle to run. At the moment, the power dividing device reduces the speed and increases the torque of the motor 3 according to a fixed speed ratio.
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 (6)
1. The single-motor planet row power splitting hybrid power driving module is characterized by comprising an engine, a torsional vibration damper, a motor, a power splitting 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 the power splitting device and a planet carrier assembly; 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 adjust the power output of the engine.
2. The single-motor planet-row power-split hybrid drive module according to claim 1, wherein the power-splitting device comprises a sun gear, a planet gear and a ring gear output shaft, and the motor is fixedly connected with the sun gear; the gear ring output shaft is connected with the gear shifting device.
3. The single-motor planetary row power-split hybrid drive module as claimed in claim 2, wherein the gear-shifting device comprises a gear-shifting actuator, a shift fork, a gear sleeve, a gear hub, body engaging teeth and output end engaging teeth; the gear hub is fixedly connected with the planet carrier assembly, the machine body combination teeth are fixedly connected with the machine body of the driving module and cannot rotate, and the output end combination teeth are fixedly connected with the gear ring output shaft; 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. The single-motor planetary row power-split hybrid drive module as claimed in claim 3, wherein the gear sleeve comprises three stations of a left position, a middle position and a right position;
when the gear sleeve is in a left position, the gear sleeve is simultaneously meshed with the gear hub and the machine body combined gear;
when in neutral position, the gear sleeve is only meshed with the gear hub;
and when the gear sleeve is positioned at the right position, the gear sleeve is simultaneously meshed with the gear hub and the output end combined gear.
5. The single-motor planetary power splitting hybrid driving module according to claim 2, wherein 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 power take-off gear is connected with a cooling and lubricating device, and the cooling and lubricating device takes the gear ring output shaft as a power source to drive an oil pump/water pump to operate so as to deliver a cooling medium to a part of the module which needs heat dissipation and lubrication.
6. The single motor planetary gear train power-split hybrid drive module of claim 2, wherein the ring gear output shaft can directly transmit power to the entire vehicle reduction transaxle.
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CN202122210310.4U CN215971088U (en) | 2021-09-13 | 2021-09-13 | Single-motor planetary power distribution hybrid power driving module |
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CN202122210310.4U CN215971088U (en) | 2021-09-13 | 2021-09-13 | Single-motor planetary power distribution hybrid power driving module |
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