CN114274758B - Hybrid gearbox, hybrid driving system and vehicle - Google Patents
Hybrid gearbox, hybrid driving system and vehicle Download PDFInfo
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- CN114274758B CN114274758B CN202111682509.5A CN202111682509A CN114274758B CN 114274758 B CN114274758 B CN 114274758B CN 202111682509 A CN202111682509 A CN 202111682509A CN 114274758 B CN114274758 B CN 114274758B
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Abstract
The invention discloses a hybrid power gearbox, a hybrid power driving system and a vehicle, wherein the hybrid power gearbox comprises a box body, a single planet row, a middle shaft, a parallel gear set, an output transmission mechanism and seven execution mechanisms, and the first execution mechanism is selectively connected with a first parallel gear or a second parallel gear; the second actuating mechanism is selectively connected with the planet carrier or the box body; the third actuating mechanism is selectively connected with the third parallel gear or the fourth parallel gear; the fourth actuating mechanism is used for connecting or disconnecting the seventh parallel gear and the intermediate shaft; a fifth actuator selectively connects or disconnects the fifth parallel gear with the output gear; a sixth actuator selectively connects or disconnects the sixth parallel gear to or from the output gear; the invention distributes and guides the power output by the engine and the motor through a plurality of executing mechanisms and a plurality of parallel gears, and realizes multi-gear output and constant speed ratio output of the planetary gear under the premise of double power of the engine.
Description
Technical Field
The application relates to the technical field of hybrid vehicles, in particular to a hybrid gearbox, a hybrid driving system and a vehicle.
Background
Hybrid vehicles are vehicles equipped with more than two power sources, such as a storage battery, a fuel cell, a solar cell, an internal combustion engine, a motor, etc., and currently, hybrid vehicles generally refer to hybrid driving modes in which the power sources are an internal combustion engine and a motor.
At present, the power structure of a hybrid electric vehicle is mainly 3. One is in a series structure, one is in a parallel structure, and the other is in a series-parallel structure. The parallel structure mainly uses the engine to drive and run, and utilizes the characteristic of the motor that the motor generates strong power when starting, and reduces the oil consumption of the engine in a motor auxiliary driving mode when the fuel consumption of the engine such as starting and accelerating of the automobile is large. The series-parallel connection structure is characterized in that the motor is driven by the electric motor to run at low speed, and the motor are driven in a matched mode when the speed is increased. When the speed is increased, the engine and the motor share the power with high efficiency. The series structure is an electric automobile driven by a motor, the engine is used as a power source to enable the generator to generate power, the automobile is driven by the motor to run, and the driving system is the motor.
However, in any of the hybrid electric vehicles, the structure of the original power transmission device is complicated due to the addition of the motor, the system becomes huge, the axial size of the power transmission device is increased, the selection of corresponding gears is small, the transmission efficiency is low, and in the working condition of long-time creeping, the electric quantity is insufficient to support the driving motor to work, the intervention of an engine end is required, and the energy of the engine running at a low speed can be wasted.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides a hybrid gearbox, a hybrid driving system and a vehicle, so as to solve the problems of complex structure and low transmission efficiency of the hybrid driving system in the prior art.
The above object of the present invention is mainly achieved by the following technical solutions:
a hybrid transmission comprising:
a case;
the intermediate shaft is used for connecting the motor;
a parallel gear set including a first parallel gear, a second parallel gear, a third parallel gear, a fourth parallel gear, a fifth parallel gear, a sixth parallel gear, a seventh parallel gear, and an eighth parallel gear connected to a sun gear shaft of a single row, the first parallel gear being meshed with both the third parallel gear and the fifth parallel gear, the second parallel gear being meshed with both the fourth parallel gear and the sixth parallel gear, the seventh parallel gear being meshed with the eighth parallel gear;
the gear ring of the single planet row is used for being connected with an engine, and a seventh executing mechanism for connecting or disconnecting the first parallel gear is arranged on the gear ring;
the output transmission mechanism comprises an output gear and an empty sleeve shaft, and the output gear is sleeved on the empty sleeve shaft in an empty mode;
a first actuator coupled to the planet carrier of the single planetary row and selectively coupled to either the first parallel gear or the second parallel gear;
the second actuating mechanism is connected with the sun gear shaft of the single planet row and is optionally connected with the planet carrier or the box body;
the third actuating mechanism is connected with the intermediate shaft and is selectively connected with the third parallel gear or the fourth parallel gear;
a fourth actuator connected to the intermediate shaft and selectively connecting or disconnecting the seventh parallel gear to or from the intermediate shaft;
the fifth actuating mechanism is sleeved on the hollow sleeve shaft and can selectively connect or disconnect the fifth parallel gear with the output gear;
and the sixth executing mechanism is sleeved on the hollow sleeve shaft and can selectively connect or disconnect the sixth parallel gear with or from the output gear.
Further, the single row of stars is embedded in the first parallel gear; the first parallel gear and the second parallel gear are both sleeved on the planet carrier in an empty mode.
Further, the gearbox further comprises a differential mechanism for connecting the wheel assemblies, and the differential mechanism is meshed with the output gear; the differential mechanism is arranged in the box body.
Further, the third parallel gear, the fourth parallel gear and the seventh parallel gear are all sleeved on the intermediate shaft in an empty mode; the fifth parallel gear and the sixth parallel gear are all sleeved on the hollow sleeve shaft in a hollow mode, and the fifth parallel gear and the sixth parallel gear are distributed on two sides of the output gear.
Further, the first actuator, the second actuator, the third actuator, the fourth actuator, the fifth actuator, the sixth actuator and the seventh actuator are synchronizers or clutches.
Further, the intermediate shaft, the sun gear shaft and the hollow sleeve shaft are parallel to each other.
Further, the intermediate shaft and the hollow sleeve shaft are distributed on two sides of the sun gear shaft.
Based on the same inventive concept, the present invention also provides a hybrid drive system including:
the above hybrid transmission;
the engine is connected with a gear ring of the hybrid power gearbox;
and the motor is connected with the intermediate shaft of the hybrid power gearbox.
Further, a torsion limiting shock absorber is further arranged between the gear ring and the engine.
Based on the same inventive concept, the invention also provides a vehicle comprising the hybrid power drive system.
Compared with the prior art, the invention has the advantages that:
the hybrid power driving system of the invention provides power through the engine and the motor together, is connected with an intermediate shaft and is provided with a parallel gear set, wherein a first parallel gear is meshed with a third parallel gear and a fifth parallel gear, a second parallel gear is meshed with a fourth parallel gear and a sixth parallel gear, a seventh parallel gear is meshed with an eighth parallel gear connected with a single planetary row, the engine is connected with a gear ring through the single planetary row, a seventh executing mechanism is arranged on the gear ring, and an output transmission mechanism comprises an output gear and a hollow sleeve shaft; a first actuating mechanism is arranged on a planet carrier of a single planet row and is selectively connected with a first parallel gear or a second parallel gear; the second actuating mechanism is arranged on a sun gear shaft of a single planet row and is optionally connected with a planet carrier or a box body; a third actuating mechanism is arranged on the intermediate shaft and is selectively connected with a third parallel gear or a fourth parallel gear; setting a fourth actuating mechanism on the intermediate shaft and selectively connecting or disconnecting the seventh parallel gear with the intermediate shaft; the fifth actuating mechanism is sleeved on the hollow sleeve shaft in a hollow mode, and the fifth parallel gear is selectively connected with or disconnected from the output gear; the sixth actuating mechanism is sleeved on the hollow sleeve shaft, and the sixth parallel gear is selectively connected or disconnected with the output gear so as to distribute and guide the power output by the engine and the motor and realize multi-gear output under the premise of double power of the engine.
According to the hybrid power gearbox, a pair of gears is added through a motor shaft to achieve a fixed speed ratio relationship of a planetary row through any two elements, so that the constant speed ratio of the planetary row is output; the E-CVT mode of the engine can be realized in a low-speed interval under the condition of a single motor, and the starting function is realized under the condition of not adding a friction element; the parallel shaft gear transmission is realized at medium and high speed, and the transmission efficiency is improved; the single motor can adjust the speed of the vehicle, and simultaneously adjust the rotation speed of the sun wheel through the intermediate shaft to realize uniform rotation speed, so that the gear shifting speed is improved, and meanwhile, the gear shifting smoothness is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly explain the drawings needed in the description of the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a hybrid driving system according to an embodiment of the present application.
In the figure: 1. a first parallel gear; 2. a second parallel gear; 3. a third parallel gear; 4. a fourth parallel gear; 5. a fifth parallel gear; 6. a sixth parallel gear; 7. a seventh parallel gear; 8. an eighth parallel gear; 9. a first actuator; 10. a second actuator; 11. a third actuator; 12. a fourth actuator; 13. a fifth actuator; 14. a sixth actuator; 15. a seventh actuator; 16. a case; 17. an engine; 18. a motor; 19. a differential; 20. a torsion limiting shock absorber; 21. an intermediate shaft; 22. an output gear; 23. a planet carrier; 24. a gear ring; 25. a sun gear shaft; 26. and a hollow sleeve shaft.
Detailed Description
The invention is further described with reference to the drawings and specific examples. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention. Specific structural and functional details disclosed herein are merely representative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
In the related art, a unidirectional locking mechanism is arranged in a hybrid power system, the unidirectional locking mechanism comprises a unidirectional clutch and a brake, an inner ring of the unidirectional clutch is connected with a sun gear shaft of a planet row, and an outer ring of the unidirectional clutch is connected with the brake. When the engine is started to participate in working, the one-way locking mechanism realizes the planetary gear ratio switching of the clutch structure. The unidirectional locking mechanism and the clutch have higher cost, and the axial dimension of the clutch is larger, which is not beneficial to carrying.
Therefore, the embodiment of the application provides a hybrid power driving system and a vehicle, which can solve the technical problems existing in the related art to a certain extent. The following detailed description of the present application refers to the accompanying drawings and specific embodiments:
example 1
As shown in fig. 1, a hybrid drive system generally includes three main components, a hybrid transmission engine 17 and an electric motor 18. Wherein:
the engine 17 is connected with a ring gear 24 of the hybrid transmission.
The electric machine 18 is connected to an intermediate shaft 21 of the hybrid gearbox.
Further, on the basis of the above embodiment, a torsion limiting damper 20 is further arranged between the gear ring 24 and the engine 17, the torsion limiting damper transmits the torque of the engine 17 by using disc springs, friction plates, spline hubs and the like, when the torque is overloaded, the transmission system is prevented from being overloaded and damaged by slipping between friction surfaces, meanwhile, the arc spring torsion damper is internally installed, so that the larger torsional vibration angular acceleration of the flywheel end of the engine 17 can be attenuated to be smaller angular acceleration of the input shaft of the gearbox, the internal shaft teeth of the gearbox are prevented from being damaged during torsional impact, and the transmission system NVH problems such as tooth knocking sound and the like caused by the internal idler gear of the gearbox are prevented.
The hybrid gearbox is a core component of a hybrid drive system, and the present embodiment provides a new architecture of the hybrid gearbox, referring to fig. 1, and specifically includes:
a case 16.
The parallel gear set comprises a first parallel gear 1, a second parallel gear 2, a third parallel gear 3, a fourth parallel gear 4, a fifth parallel gear 5, a sixth parallel gear 6, a seventh parallel gear 7 sleeved on an intermediate shaft 21 and an eighth parallel gear 8 connected with a sun gear shaft 25, wherein the first parallel gear 1 is meshed with the third parallel gear 3 and the fifth parallel gear 5, the second parallel gear 2 is meshed with the fourth parallel gear 4 and the sixth parallel gear 6, and the seventh parallel gear 7 is meshed with the eighth parallel gear 8.
The single planet row comprises a sun gear, a sun gear shaft 25, planet gears, a planet carrier 23 and a gear ring 24, wherein the sun gear is fixedly connected with the sun gear shaft 25, the gear ring 24 of the single planet row is used for being connected with an engine 17 to transmit torque of the engine 17, and a seventh actuating mechanism 15 for connecting or disconnecting the first parallel gear 1 is arranged on the gear ring 24.
The output transmission mechanism comprises an output gear 22 and a hollow sleeve shaft 26, wherein the output gear 22 is hollow and sleeved on the hollow sleeve shaft 26.
The first actuator 9 is arranged on the planet carrier 23 of the row of planets and is selectively connected to the first parallel gear 1 or the second parallel gear 2.
The second actuator 10 is arranged on the sun gear shaft 25 of the row of planets and is optionally connected to the planet carrier 23 or the housing 16.
The third actuator 11 is connected to the intermediate shaft 21 and is optionally connected to the third parallel gear 3 or the fourth parallel gear 4.
The fourth actuator 12 is provided on the intermediate shaft 21 and is used for connecting or disconnecting the seventh parallel gear 7 with the intermediate shaft 21.
A fifth actuator 13 is provided on the hollow shaft 26 and is selectively connected to the fifth parallel gear 5 and the output gear 22.
The sixth actuator 14 is arranged on the hollow shaft 26 and is optionally connected to the sixth parallel gear 6 and the output gear 22.
It is understood that in other embodiments, the housing 16 may be equivalently other fixed, different structures of the vehicle body, such as a body frame of an engine compartment, etc.
The sun, planet and ring gears 24 effect transmission and power splitting in the conventional meshing form disclosed in the prior art.
The hybrid transmission of the embodiment can realize multi-gear drive with flexible combination of the engine 17 and the motor 18.
The following details the respective gear positions:
gear one:
the third actuating mechanism 11, the fourth actuating mechanism 12 are disconnected, the seventh actuating mechanism 15 is disconnected, the second actuating mechanism 10 is connected with the box 16, the first actuating mechanism 9 is connected with the first parallel gear 1, the fifth actuating mechanism 13 is connected with the fifth parallel gear 5 and the output gear 22, and the power transmission path is as follows: the power output by the engine 17 is transmitted to the wheels through the differential mechanism 19 through the gear ring 24, the planet carrier 23, the first actuator 9, the first parallel gear 1, the fifth parallel gear 5, the fifth actuator 13 and the output gear 22 in sequence.
Gear two:
the third actuator 11, the fourth actuator 12 and the seventh actuator 15 are disconnected, the second actuator 10 is connected with the box 16, the first actuator 9 is connected with the second parallel gear 2, the sixth actuator 14 is connected with the sixth parallel gear 6 and the output gear 22, and the power transmission path is as follows: the power output by the engine 17 is transmitted to the wheels through the differential gear 19 via the ring gear 24, the planet carrier 23, the first actuator 9, the second parallel gear 2, the sixth parallel gear 6, the sixth actuator 14, and the output gear 22 in this order.
Gear three:
the third actuator 11, the fourth actuator 12 and the seventh actuator 15 are disconnected, the second actuator 10 is connected with the planet carrier 23, the first actuator 9 is connected with the first parallel gear 1, the fifth actuator 13 is connected with the fifth parallel gear 5 and the output gear 22, and the power transmission path is as follows: the power output by the engine 17 is transmitted to the wheels through the differential mechanism 19 through the gear ring 24, the planet carrier 23, the first actuator 9, the first parallel gear 1, the fifth parallel gear 5, the fifth actuator 13 and the output gear 22 in sequence.
Gear IV:
the third actuator 11, the fourth actuator 12 and the seventh actuator 15 are disconnected, the second actuator 10 is connected with the planet carrier 23, the first actuator 9 is connected with the second parallel gear 2, the sixth actuator 14 is connected with the sixth parallel gear 6 and the output gear 22, and the power transmission path is as follows: the power output by the engine 17 is transmitted to the wheels through the differential gear 19 via the ring gear 24, the planet carrier 23, the first actuator 9, the second parallel gear 2, the sixth parallel gear 6, the sixth actuator 14, and the output gear 22 in this order.
Gear five:
the third actuating mechanism 11 is connected with the intermediate shaft 21 and the third parallel gear 3, the fourth actuating mechanism 12 is connected with the seventh parallel gear 7 and the intermediate shaft 21, the seventh actuating mechanism 15 is connected with the gear ring 24 and the first parallel gear 1, the second actuating mechanism 10 is disconnected with the planet carrier 23 and the box 16, the first actuating mechanism 9 is connected with the first parallel gear 1, the fifth actuating mechanism 13 is connected with the fifth parallel gear 5 and the output gear 22, and the power transmission path is as follows: the power output by the engine 17 passes through the gear ring 24, the seventh executing mechanism 15, the first parallel gear 1, the third parallel gear 3, the third executing mechanism 11, the intermediate shaft 21, the seventh parallel gear 7, the eighth parallel gear 8, the sun gear shaft 25, the planet gears, the planet carrier 23, the first executing mechanism 9, the first parallel gear 1, the fifth parallel gear 5, the fifth executing mechanism 13 and the output gear 22 in sequence, and is transmitted to the wheel assembly through the differential mechanism 19.
In the fifth gear state, a fixed speed ratio is provided between the ring gear 24 and the sun gear.
On the basis of gear five, the output shaft of the motor 18 can be connected to the intermediate shaft 21, so that double power sources of the engine 17 and the motor 18 are achieved, and output power is improved.
Gear six:
the third actuating mechanism 11 is connected with the intermediate shaft 21 and the third parallel gear 3, the fourth actuating mechanism 12 is connected with the seventh parallel gear 7 and the intermediate shaft 21, the seventh actuating mechanism 15 is connected with the gear ring 24 and the first parallel gear 1, the second actuating mechanism 10 is disconnected with the planet carrier 23 and the box 16, the first actuating mechanism 9 is connected with the second parallel gear 2, the sixth actuating mechanism 14 is connected with the sixth parallel gear 6 and the output gear 22, and the power transmission path is as follows: the power output by the engine 17 passes through the gear ring 24, the seventh actuator 15, the first parallel gear 1, the third parallel gear 3, the third actuator 11, the intermediate shaft 21, the seventh parallel gear 7, the eighth parallel gear 8, the sun gear shaft 25, the planet gears, the planet carrier 23, the first actuator 9, the second parallel gear 2, the sixth parallel gear 6, the sixth actuator 14 and the output gear 22 in sequence, and is transmitted to the wheel assembly through the differential 19.
And in the sixth gear state, a fixed speed ratio is provided between the ring gear 24 and the sun gear.
On the basis of gear six, the output shaft of the motor 18 can be connected to the intermediate shaft 21, so that the double power sources of the engine 17 and the motor 18 are achieved.
Gear seven:
the third actuating mechanism 11 is connected with the intermediate shaft 21 and the fourth parallel gear 4, the fourth actuating mechanism 12 is connected with the seventh parallel gear 7 and the intermediate shaft 21, the seventh actuating mechanism 15 is connected with the gear ring 24 and the first parallel gear 1, the second actuating mechanism 10 is disconnected with the planet carrier 23 and the box 16, the first actuating mechanism 9 is connected with the second parallel gear 2, the fifth actuating mechanism 13 is connected with the fifth parallel gear 5 and the output gear 22, the sixth actuating mechanism 14 is disconnected with the sixth parallel gear 6 and the output gear 22, and the power transmission path is as follows: the power output by the engine 17 is transmitted to the wheels through the differential mechanism 19 in sequence through the gear ring 24, the seventh executing mechanism 15, the first parallel gear 1, the fifth parallel gear 5, the fifth executing mechanism 13 and the output gear 22, and meanwhile, a fixed speed ratio is formed between the sun gear and the planet carrier 23 through the sun gear shaft 25, the eighth parallel gear 8, the seventh parallel gear 7, the intermediate shaft 21, the third executing mechanism 11, the fourth parallel gear 4, the second parallel gear 2 and the first executing mechanism 9.
On the basis of the seventh gear, the output shaft of the motor 18 can be connected to the intermediate shaft 21, so that the double power sources of the engine 17 and the motor 18 are achieved.
Gear eight:
the third actuating mechanism 11 is connected with the intermediate shaft 21 and the fourth parallel gear 4, the fourth actuating mechanism 12 is connected with the seventh parallel gear 7 and the intermediate shaft 21, the seventh actuating mechanism 15 is disconnected with the gear ring 24 and the first parallel gear 1, the second actuating mechanism 10 is disconnected with the planet carrier 23 and the box 16, the first actuating mechanism 9 is connected with the second parallel gear 2, the fifth actuating mechanism 13 is disconnected with the fifth parallel gear 5 and the output gear 22, the sixth actuating mechanism 14 is connected with the sixth parallel gear 6 and the output gear 22, and the power transmission path is as follows: the power output by the engine 17 sequentially passes through the gear ring 24, the planet carrier 23, the first actuating mechanism 9, the second parallel gear 2, the sixth parallel gear 6, the sixth actuating mechanism 14 and the output gear 22, and is transmitted to wheels through the differential gear 19, meanwhile, a fixed speed ratio is formed between the sun gear and the planet carrier 23 through the sun gear shaft 25, the eighth parallel gear 8, the seventh parallel gear 7, the intermediate shaft 21, the third actuating mechanism 11, the fourth parallel gear 4, the second parallel gear 2 and the first actuating mechanism 9.
On the basis of the gear eight, the output shaft of the motor 18 can be connected to the intermediate shaft 21, so that the double power sources of the engine 17 and the motor 18 are achieved.
Gear nine:
the third actuating mechanism 11 disconnects the intermediate shaft 21 from the fourth parallel gear 4, the fourth actuating mechanism 12 disconnects the seventh parallel gear 7 from the intermediate shaft 21, the seventh actuating mechanism 15 connects the gear ring 24 with the first parallel gear 1, the second actuating mechanism 10 connects with the box 16, the first actuating mechanism 9 connects with the second parallel gear 2, the fifth actuating mechanism 13 connects with the fifth parallel gear 5 and the output gear 22, the sixth actuating mechanism 14 connects with the sixth parallel gear 6 and the output gear 22, the power transmission path is: the power output by the engine 17 is sequentially transmitted to the wheels through the gear ring 24, the seventh executing mechanism 15, the first parallel gear 1, the fifth parallel gear 5, the fifth executing mechanism 13 and the output gear 22, and meanwhile, the output gear 22 is connected with the sixth parallel gear 6, the second parallel gear 2, the first executing mechanism 9 and the planet carrier 23 through the sixth executing mechanism 14, so that the gear ring 24 and the sun gear form a fixed speed ratio.
The working principle of the embodiment is as follows: the engine 17 and the motor 18 jointly provide power, a parallel gear set is arranged, wherein the first parallel gear 1 is meshed with the third parallel gear 3 and the fifth parallel gear 5, the second parallel gear 2 is meshed with the fourth parallel gear 4 and the sixth parallel gear 6, the seventh parallel gear 7 is meshed with the eighth parallel gear 8, the engine 17 is connected through a gear ring 24 of a single planetary row, a seventh executing mechanism 15 is arranged on the gear ring 24, and the output transmission mechanism comprises an output gear 22 and a hollow sleeve shaft 26; the first actuator 9 is arranged on the planet carrier 23 of the single row of planets and is optionally connected to the first parallel gear 1 or the second parallel gear 2; by providing a second actuator 10 on the sun gear shaft 25 of the row of planets and optionally connected to the planet carrier 23 or the box 16; a third actuator 11 is arranged and connected with an intermediate shaft 21 and optionally with a third parallel gear 3 or a fourth parallel gear 4; the fourth actuator 12 is arranged on the intermediate shaft 21 and is used for connecting or disconnecting the seventh parallel gear 7 with the intermediate shaft 21; a fifth actuator 13 is arranged on the hollow shaft 26 and is optionally connected to the fifth parallel gear 5 and the output gear 22; the sixth actuating mechanism 14 is arranged on the hollow sleeve shaft 26 and is optionally connected with the sixth parallel gear 6 and the output gear 22 to distribute and guide the power output by the engine 17 and the motor 18, so as to realize multi-gear output under the premise of double power of the engine 17.
A pair of gears is added through the shaft of the motor 18 to realize the fixed speed ratio relation of the planetary row through any two elements, so that the fixed speed ratio of the planetary row is output; the E-CVT mode of the engine 17 can be realized in a low-speed interval under the condition of a single motor 18, and the starting function is solved under the condition of not adding friction elements; the parallel shaft gear transmission is realized at medium and high speed, and the transmission efficiency is improved; the single motor 18 can adjust the speed of the vehicle, and simultaneously adjust the rotation speed of the sun wheel through the intermediate shaft to realize uniform rotation speed, so that the gear shifting speed is improved, and meanwhile, the gear shifting smoothness is improved.
According to the hybrid power driving system, the engine power flow is input by the gear ring, the planet carrier/sun gear shaft outputs, compared with the power modes of input by the planet carrier and output by the gear ring in the prior art, the hybrid power driving system has the advantages that larger torque can be obtained at the output end of the planet row, the power performance is good, only one planet row is needed to be configured, and the structure of the hybrid power driving system is simplified.
Further, in order to optimize the internal structure of the hybrid transmission, the first parallel gear 1 and the second parallel gear 2 are both sleeved on the planet carrier 23, and a single row of planets is embedded in the first parallel gear 1, so that the axial dimension of the hybrid transmission is shortened.
Further, on the basis of the above embodiment, the third parallel gear 3, the fourth parallel gear 4 and the seventh parallel gear 7 are all sleeved on the intermediate shaft 21, and the third parallel gear 3 and the fourth parallel gear 4 are located at one side of the motor 18, and the seventh parallel gear 7 is located at one side of the motor 18, so that installation and arrangement of the third parallel gear 3, the fourth parallel gear 4 and the seventh parallel gear 7 are facilitated.
Further, on the basis of the above embodiment, the output gear 22, the fifth parallel gear 5 and the sixth parallel gear 6 are all sleeved on the hollow sleeve shaft 26, and the fifth parallel gear 5 and the sixth parallel gear 6 are located at two sides of the output gear 22, so that installation and arrangement of the output gear 22, the fifth parallel gear 5 and the sixth parallel gear 6 are facilitated.
Further, the first actuator 9, the second actuator 10, the third actuator 11, the fourth actuator 12, the fifth actuator 13, the sixth actuator 14 and the seventh actuator 15 are synchronizers or clutches.
Further, on the basis of the above embodiment, the intermediate shaft 21, the sun gear shaft 25 and the hollow sleeve shaft 26 are parallel to each other, thereby shortening the axial dimension of the hybrid transmission.
Further, on the basis of the above embodiment, the intermediate shaft 21 and the output shaft are distributed on both sides of the sun gear shaft 25, so that the motor and the differential are distributed on both sides of the single planetary gear row, thereby facilitating the arrangement of the internal parts of the hybrid gearbox.
Example 2
Based on the same inventive concept, the present invention further provides a vehicle, including the hybrid driving system according to any one of embodiment 1, specifically, in the hybrid vehicle, except for the structure of the hybrid transmission adopting the hybrid transmission in the foregoing embodiment, the structure, connection relationship, installation position, etc. of other devices may refer to related disclosures in the prior art, and will not be described herein.
It should be appreciated that the terms first, second, etc. are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.
It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: the terms "/and" herein describe another associative object relationship, indicating that there may be two relationships, e.g., a/and B, may indicate that: the character "/" herein generally indicates that the associated object is an "or" relationship.
It should be understood that in the description of the present invention, the terms "upper", "vertical", "inner", "outer", etc. indicate an orientation or a positional relationship in which the disclosed product is conventionally put in use, or an orientation or a positional relationship that is conventionally understood by those skilled in the art, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It will be further understood that the terms "comprises," "comprising," "includes," "including" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.
In the following description, specific details are provided to provide a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail in order to avoid obscuring the example embodiments.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A hybrid transmission, comprising:
a case;
the intermediate shaft is used for connecting the motor;
a parallel gear set including a first parallel gear, a second parallel gear, a third parallel gear, a fourth parallel gear, a fifth parallel gear, a sixth parallel gear, a seventh parallel gear, and an eighth parallel gear connected to a sun gear shaft of a single row, the first parallel gear being meshed with both the third parallel gear and the fifth parallel gear, the second parallel gear being meshed with both the fourth parallel gear and the sixth parallel gear, the seventh parallel gear being meshed with the eighth parallel gear;
the gear ring of the single planet row is used for being connected with an engine, and a seventh executing mechanism for connecting or disconnecting the first parallel gear is arranged on the gear ring;
the output transmission mechanism comprises an output gear and an empty sleeve shaft, and the output gear is sleeved on the empty sleeve shaft in an empty mode;
a first actuator coupled to the planet carrier of the single planetary row and selectively coupled to either the first parallel gear or the second parallel gear;
the second actuating mechanism is connected with the sun gear shaft of the single planet row and is optionally connected with the planet carrier or the box body;
the third actuating mechanism is connected with the intermediate shaft and is selectively connected with the third parallel gear or the fourth parallel gear;
a fourth actuator connected to the intermediate shaft and selectively connecting or disconnecting the seventh parallel gear to or from the intermediate shaft;
the fifth actuating mechanism is sleeved on the hollow sleeve shaft and can selectively connect or disconnect the fifth parallel gear with the output gear;
and the sixth executing mechanism is sleeved on the hollow sleeve shaft and can selectively connect or disconnect the sixth parallel gear with or from the output gear.
2. The hybrid transmission as set forth in claim 1, wherein: the single planet row is embedded in the first parallel gear; the first parallel gear and the second parallel gear are both sleeved on the planet carrier in an empty mode.
3. The hybrid transmission as set forth in claim 1, wherein: the gearbox further comprises a differential mechanism which is used for connecting the wheels, and the differential mechanism is meshed with the output gear; the differential mechanism is arranged in the box body.
4. The hybrid transmission as set forth in claim 1, wherein: the third parallel gear, the fourth parallel gear and the seventh parallel gear are all sleeved on the intermediate shaft in an empty mode; the fifth parallel gear and the sixth parallel gear are all sleeved on the hollow sleeve shaft in a hollow mode, and the fifth parallel gear and the sixth parallel gear are distributed on two sides of the output gear.
5. The hybrid transmission as set forth in claim 1, wherein: the first executing mechanism, the second executing mechanism, the third executing mechanism, the fourth executing mechanism, the fifth executing mechanism, the sixth executing mechanism and the seventh executing mechanism are synchronizers or clutches.
6. The hybrid transmission as set forth in claim 1, wherein: the intermediate shaft, the sun gear shaft and the hollow sleeve shaft are mutually parallel.
7. The hybrid transmission as set forth in claim 6, wherein: the intermediate shaft and the hollow sleeve shaft are distributed on two sides of the sun gear shaft.
8. A hybrid drive system, characterized by comprising:
the hybrid transmission of any one of claims 1-7;
the engine is connected with a gear ring of the hybrid power gearbox;
and the motor is connected with the intermediate shaft of the hybrid power gearbox.
9. The hybrid drive system as set forth in claim 8, wherein: and a torsion limiting shock absorber is further arranged between the gear ring and the engine.
10. A vehicle comprising the hybrid drive system of any one of claims 8-9.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020411A (en) * | 2007-03-15 | 2007-08-22 | 重庆大学 | Transmission system of mixed power automobile |
| CN101342866A (en) * | 2008-08-14 | 2009-01-14 | 东风电动车辆股份有限公司 | Electric coupling apparatus of hybrid power machine with dual-coupling mode |
| JP2011011736A (en) * | 2009-06-03 | 2011-01-20 | Toyota Central R&D Labs Inc | Power transmission device |
| DE102011089709A1 (en) * | 2011-12-23 | 2013-06-27 | Zf Friedrichshafen Ag | Hybrid drive for motor vehicle, has internal combustion engine with drive shaft, electric machine with rotor and multi-stage manual gearbox with two input shafts and common output shaft that is arranged axial parallel to input shafts |
| CN107650664A (en) * | 2017-09-08 | 2018-02-02 | 东风汽车公司 | A kind of multi-mode hybrid transmission device with double clutch |
| CN110962569A (en) * | 2018-09-29 | 2020-04-07 | 比亚迪股份有限公司 | Hybrid power driving system and vehicle |
| CN110978989A (en) * | 2019-11-25 | 2020-04-10 | 苏州格特钠汽车技术有限公司 | Novel hybrid power transmission |
| CN111497589A (en) * | 2020-04-10 | 2020-08-07 | 东风汽车集团有限公司 | Power transmission system of hybrid electric vehicle and power transmission method thereof |
| CN111976463A (en) * | 2020-08-31 | 2020-11-24 | 东风汽车集团有限公司 | Hybrid power vehicle driving system capable of realizing single-motor two-gear driving |
| CN111976464A (en) * | 2020-08-31 | 2020-11-24 | 东风汽车集团有限公司 | Hybrid vehicle driving system for regulating speed by using motor during gear shifting |
| CN112224007A (en) * | 2020-10-26 | 2021-01-15 | 东风汽车集团有限公司 | Special multi-mode hybrid transmission |
| CN112677751A (en) * | 2021-01-22 | 2021-04-20 | 东风汽车集团股份有限公司 | Single-motor multi-gear hybrid electric drive system based on single planetary gear mechanism |
| CN112959881A (en) * | 2021-03-24 | 2021-06-15 | 广西玉柴机器股份有限公司 | Three-gear parallel shaft type lameable double-motor single-row planet row hybrid power system with power take-off module |
| CN113459790A (en) * | 2021-08-11 | 2021-10-01 | 上海汽车变速器有限公司 | Transverse hybrid power transmission and automobile |
| CN113561757A (en) * | 2021-06-30 | 2021-10-29 | 东风汽车集团股份有限公司 | Single-motor single-planetary-row multi-gear hybrid power gearbox and hybrid power vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006059591A1 (en) * | 2006-12-16 | 2008-06-19 | Zf Friedrichshafen Ag | Hybrid powertrain of a motor vehicle |
| DE102013211975B4 (en) * | 2013-02-06 | 2024-03-28 | Bayerische Motoren Werke Aktiengesellschaft | Torque superposition device for hybrid drives and method for operating such a hybrid drive |
-
2021
- 2021-12-31 CN CN202111682509.5A patent/CN114274758B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020411A (en) * | 2007-03-15 | 2007-08-22 | 重庆大学 | Transmission system of mixed power automobile |
| CN101342866A (en) * | 2008-08-14 | 2009-01-14 | 东风电动车辆股份有限公司 | Electric coupling apparatus of hybrid power machine with dual-coupling mode |
| JP2011011736A (en) * | 2009-06-03 | 2011-01-20 | Toyota Central R&D Labs Inc | Power transmission device |
| DE102011089709A1 (en) * | 2011-12-23 | 2013-06-27 | Zf Friedrichshafen Ag | Hybrid drive for motor vehicle, has internal combustion engine with drive shaft, electric machine with rotor and multi-stage manual gearbox with two input shafts and common output shaft that is arranged axial parallel to input shafts |
| CN107650664A (en) * | 2017-09-08 | 2018-02-02 | 东风汽车公司 | A kind of multi-mode hybrid transmission device with double clutch |
| CN110962569A (en) * | 2018-09-29 | 2020-04-07 | 比亚迪股份有限公司 | Hybrid power driving system and vehicle |
| CN110978989A (en) * | 2019-11-25 | 2020-04-10 | 苏州格特钠汽车技术有限公司 | Novel hybrid power transmission |
| CN111497589A (en) * | 2020-04-10 | 2020-08-07 | 东风汽车集团有限公司 | Power transmission system of hybrid electric vehicle and power transmission method thereof |
| CN111976463A (en) * | 2020-08-31 | 2020-11-24 | 东风汽车集团有限公司 | Hybrid power vehicle driving system capable of realizing single-motor two-gear driving |
| CN111976464A (en) * | 2020-08-31 | 2020-11-24 | 东风汽车集团有限公司 | Hybrid vehicle driving system for regulating speed by using motor during gear shifting |
| CN112224007A (en) * | 2020-10-26 | 2021-01-15 | 东风汽车集团有限公司 | Special multi-mode hybrid transmission |
| CN112677751A (en) * | 2021-01-22 | 2021-04-20 | 东风汽车集团股份有限公司 | Single-motor multi-gear hybrid electric drive system based on single planetary gear mechanism |
| CN112959881A (en) * | 2021-03-24 | 2021-06-15 | 广西玉柴机器股份有限公司 | Three-gear parallel shaft type lameable double-motor single-row planet row hybrid power system with power take-off module |
| CN113561757A (en) * | 2021-06-30 | 2021-10-29 | 东风汽车集团股份有限公司 | Single-motor single-planetary-row multi-gear hybrid power gearbox and hybrid power vehicle |
| CN113459790A (en) * | 2021-08-11 | 2021-10-01 | 上海汽车变速器有限公司 | Transverse hybrid power transmission and automobile |
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