CN113942384A - Power assembly system and vehicle - Google Patents

Power assembly system and vehicle Download PDF

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Publication number
CN113942384A
CN113942384A CN202111402273.5A CN202111402273A CN113942384A CN 113942384 A CN113942384 A CN 113942384A CN 202111402273 A CN202111402273 A CN 202111402273A CN 113942384 A CN113942384 A CN 113942384A
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CN
China
Prior art keywords
gear
transmission
drive
planet
motor driving
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Pending
Application number
CN202111402273.5A
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Chinese (zh)
Inventor
冯涛
李佳新
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FAW Jiefang Automotive Co Ltd
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FAW Jiefang Automotive Co Ltd
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Publication date
Application filed by FAW Jiefang Automotive Co Ltd filed Critical FAW Jiefang Automotive Co Ltd
Priority to CN202111402273.5A priority Critical patent/CN113942384A/en
Publication of CN113942384A publication Critical patent/CN113942384A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention discloses a power assembly system and a vehicle, and belongs to the technical field of automobile axles. The power assembly system comprises a first driving module, a power output shaft, a transmission gear and a second driving module, and the engine is in transmission connection with the driving axle module through the power output shaft, so that the traditional simple and reliable driving axle structure is kept; the transmission gear is additionally arranged on the power output shaft, the two motor driving units can selectively drive the transmission gear through the planet row respectively so as to drive the drive axle module to operate, and the engine and the two motor driving units are simultaneously arranged, so that the two modes of engine and motor driving are provided, the driving mode is increased, and the large-torque driving is ensured; according to the use working condition, the two motor driving units can selectively operate, and the energy-saving and emission-reducing performance of the power assembly system is improved.

Description

Power assembly system and vehicle
Technical Field
The invention relates to the technical field of automobile axles, in particular to a power assembly system and a vehicle.
Background
In domestic electric drive automobile, the motor is mostly integrated on a drive axle, and the drive axle has a complex structure and lower transmission torque efficiency and is not suitable for heavy-load commercial vehicles.
Accordingly, it is desirable to provide a powertrain system and a vehicle to solve the above problems.
Disclosure of Invention
The invention aims to provide a power assembly system and a vehicle, which can ensure large-torque driving, increase driving modes and improve the performance of energy conservation and emission reduction.
In order to realize the purpose, the following technical scheme is provided:
a powertrain system comprising:
a first drive module comprising an engine;
the transmission gear is arranged on the power output shaft, the first end of the power output shaft is in transmission connection with the engine, and the second end of the power output shaft is in transmission connection with the drive axle module;
the second driving module comprises a first motor driving unit and a second motor driving unit, the first motor driving unit is in transmission connection with the transmission gear through a first planet row, and the second motor driving unit is in transmission connection with the transmission gear through a second planet row;
the first motor driving unit and the second motor driving unit are configured to selectively drive the transmission gear.
As the alternative of drive train, first planet row includes first sun gear, first planet wheel, first planet carrier and first ring gear, first motor drive unit with first sun gear transmission is connected, first planet wheel rotate set up in first planet carrier, first planet wheel simultaneously with first sun gear with first ring gear meshing, first ring gear is fixed to be set up, first planet carrier through first drive assembly with drive gear meshing.
As an alternative to the drive train, the first planetary row further comprises a first needle bearing, and the first planet gear is rotatably disposed on the first planet carrier through the first needle bearing.
As an alternative of the powertrain system, the first transmission assembly includes a first rotating shaft and a first output gear, the first planet carrier is connected with one end of the first rotating shaft, the other end of the first rotating shaft is provided with the first output gear, and the first output gear is engaged with the transmission gear.
As an alternative to the drive train, the second planetary gear set comprises a second sun gear, a second planet carrier and a second gear ring, the second motor drive unit is in transmission connection with the second sun gear, the second planet gear is rotatably arranged in the second planet carrier, the second planet gear is simultaneously meshed with the second sun gear and the second gear ring, the second gear ring is fixedly arranged, and the second planet carrier is meshed with the transmission gear through a second transmission component.
As an alternative to the powertrain system, the second planetary gear set further includes a second needle bearing, and the second planetary gear is rotatably disposed on the second planetary carrier through the second needle bearing.
As an alternative of the power assembly system, the second transmission component comprises a second rotating shaft and a second output gear, the second planet carrier is connected with one end of the second rotating shaft, the second output gear is arranged at the other end of the second rotating shaft, and the second output gear is meshed with the transmission gear.
As an alternative of the powertrain system, the first drive module further comprises a clutch and a gearbox, the clutch is arranged between the gearbox and the engine, the clutch can fixedly connect or disconnect the gearbox with the engine, and the gearbox is in transmission connection with the first end of the power take-off shaft.
As an alternative of the power assembly system, the drive axle module comprises a middle axle and a rear axle which are connected in series, and the second end of the power output shaft is in transmission connection with the middle axle.
A vehicle comprises wheels and a powertrain system as described above, the wheels being provided at both ends of a middle axle and a rear axle.
Compared with the prior art, the invention has the beneficial effects that:
the power assembly system provided by the invention is provided with the first driving module and the second driving module, the engine is in transmission connection with the drive axle module through the power output shaft, and the traditional simple and reliable drive axle structure is kept; the transmission gear is additionally arranged on the power output shaft, the two motor driving units can selectively drive the transmission gear through the planet row respectively so as to drive the drive axle module to operate, and the engine and the two motor driving units are simultaneously arranged, so that the two modes of engine and motor driving are provided, the driving mode is increased, and the large-torque driving is ensured; according to the use working condition, the two motor driving units can selectively operate, and the energy-saving and emission-reducing performance of the power assembly system is improved.
The vehicle provided by the invention is simultaneously provided with the engine and the two motor driving units, has two modes of driving the engine and the motor, increases the driving mode and ensures large-torque driving; according to the use working condition, the motor driving unit can selectively operate, and the energy-saving and emission-reducing performance of the power assembly system is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic illustration of a powertrain system in an embodiment of the present invention;
fig. 2 is a schematic diagram of a first motor drive unit and a second motor drive unit in an embodiment of the present invention.
Reference numerals:
1. a first driving module; 2. a power take-off shaft; 3. a transmission gear; 4. a drive axle module; 5. a second driving module; 6. a wheel;
11. an engine; 12. a clutch; 13. a gearbox;
41. a middle bridge; 42. a rear axle;
51. a first motor drive unit; 52. a second motor drive unit; 53. a first planet row; 531. a first sun gear; 532. a first planet gear; 533. a first carrier; 534. a first ring gear; 54. a second planet row; 541. a second sun gear; 542. a second planet wheel; 543. a second planet carrier; 544. a second ring gear; 55. a first transmission assembly; 551. a first rotating shaft; 552. a first output gear; 56. a second transmission assembly; 561. a second rotating shaft; 562. a second output gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In order to increase a driving mode, improve the performance of energy saving and emission reduction and reduce the cost while ensuring large torque driving, the embodiment provides a powertrain system and a vehicle, which are applied to a hybrid vehicle, that is, an electric speed reduction unit is added between a gearbox and a drive axle, so that simultaneous driving or independent driving of an engine and a motor is realized, and the performance of energy saving and environmental protection is improved while ensuring large torque driving. Details of the present embodiment are described below with reference to fig. 1 to 2.
As shown in fig. 1, the powertrain system includes a first drive module 1, a power output shaft 2, a transmission gear 3, and a second drive module 5, and the first drive module 1 includes an engine 11. The transmission gear 3 is arranged on the power output shaft 2, the first end of the power output shaft 2 is in transmission connection with the engine 11, the second end of the power output shaft 2 is in transmission connection with the drive axle module 4, and power of the engine 11 is reliably transmitted to the drive axle module 4. The second driving module 5 comprises a first motor driving unit 51 and a second motor driving unit 52, wherein the first motor driving unit 51 is in transmission connection with the transmission gear 3 through a first planetary row 53, and the second motor driving unit 52 is in transmission connection with the transmission gear 3 through a second planetary row 54. The first motor driving unit 52 and the second motor driving unit 52 are configured to selectively drive the transmission gear 3.
In short, the power assembly system provided by the invention is provided with the first driving module 1 and the second driving module 5, and the engine 11 is in transmission connection with the drive axle module 4 through the power output shaft 2, so that the traditional simple and reliable drive axle structure is kept; the transmission gear 3 is additionally arranged on the power output shaft 2, the two motor driving units can selectively drive the transmission gear 3 through the planet row respectively so as to drive the drive axle module 4 to operate, and the engine 11 and the two motor driving units are simultaneously arranged, so that the two modes of the engine 11 and the motor driving are combined, the driving mode is increased, and the large-torque driving is ensured; according to the use working condition, the two motor driving units can selectively operate, and the energy-saving and emission-reducing performance of the power assembly system is improved.
Exemplary, the first mode of operation: when the vehicle requires a large torque, the engine 11 and the two motor drive units are driven simultaneously. The second operation mode is as follows: when the vehicle requires a medium torque, the engine 11 is driven alone or both motor drive units are driven simultaneously. The third operation mode is as follows: when the vehicle requires high speed and low torque, two motor drive units are driven simultaneously or a single motor drive unit is driven. The engine 11 and the motor driving unit may adopt various matching modes according to actual working conditions, and are not limited too much here.
Further, the first planet row 53 includes a first sun gear 531, a first planet gear 532, a first planet carrier 533 and a first ring gear 534, the first motor driving unit 51 is in transmission connection with the first sun gear 531, the first planet gear 532 is rotatably disposed on the first planet carrier 533, the first planet gear 532 is simultaneously meshed with the first sun gear 531 and the first ring gear 534, the first ring gear 534 is fixedly disposed, and the first planet carrier 533 is meshed with the transmission gear 3 through the first transmission assembly 55. Specifically, the first planet row 53 further includes a first needle bearing, and the first planet gear 532 is rotatably disposed on the first planet carrier 533 through the first needle bearing.
Further, the first transmission assembly 55 includes a first rotation shaft 551 and a first output gear 552, the first planet carrier 533 is connected to one end of the first rotation shaft 551, the other end of the first rotation shaft 551 is provided with the first output gear 552, and the first output gear 552 is engaged with the transmission gear 3. The form of gear drive is adopted, so that on one hand, the transmission torque can be ensured, and on the other hand, the transmission accuracy is ensured.
In some application scenarios, the second planetary row 54 includes a second sun gear 541, a second planetary gear 542, a second planetary carrier 543, and a second ring gear 544, the second motor driving unit 51 is in transmission connection with the second sun gear 541, the second planetary gear 542 is rotatably disposed on the second planetary carrier 543, the second planetary gear 542 is simultaneously engaged with the second sun gear 541 and the second ring gear 544, the second ring gear 544 is fixedly disposed, and the second planetary carrier 543 is engaged with the transmission gear 3 through the second transmission assembly 56. Specifically, the second planet row 54 further includes a second needle bearing, and the second planet wheel 542 is rotatably disposed on the second planet carrier 543 through the second needle bearing.
Further, the second transmission assembly 56 includes a second rotating shaft 561 and a second output gear 562, the second planet carrier 543 is connected with one end of the second rotating shaft 561, the other end of the second rotating shaft 561 is provided with the second output gear 562, and the second output gear 562 is meshed with the transmission gear 3. Adopt gear drive's form, guarantee sufficient mechanical drive's moment on the one hand for engineering machine tool can satisfy the use of comparatively abominable work occasion, and on the other hand guarantees driven accuracy.
In summary, the two motor driving units of the second driving module 5 are in a single assembly structure, and include two sets of motors, two sets of planetary reduction mechanisms, and two sets of first output gears 552. The purpose of increasing or reducing the speed of the power output shaft 2 is achieved by designing the number of teeth between the first output gear 552 and the second output gear 562 and the transmission gear 3, which is not limited herein.
Further, the first driving module further comprises a clutch 12 and a gearbox 13, the clutch 12 is arranged between the gearbox 13 and the engine 11, the clutch 12 can enable the gearbox 13 and the engine 11 to be fixedly connected or disconnected, and the gearbox 13 is in transmission connection with the first end of the power output shaft 2. Specifically, a coupling is arranged between the gearbox 13 and the first end of the power output shaft 2, so that power transmission is realized.
Further, the drive axle module 4 includes a middle axle 41 and a rear axle 42 connected in series, and the second end of the power output shaft 2 is in transmission connection with the middle axle 41.
The embodiment also provides a vehicle including wheels 6 and the powertrain system described above, and the wheels 6 are provided at both ends of the intermediate axle 41 and the rear axle 42. The motor and the motor are driven in two modes, the driving mode is increased, and large-torque driving is guaranteed; according to the use working condition, the two motor driving units can selectively operate, and the energy-saving and emission-reducing performance of the vehicle is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A powertrain system, comprising:
a first drive module (1) comprising an engine (11);
the power output shaft (2) and the transmission gear (3), the transmission gear (3) is arranged on the power output shaft (2), the first end of the power output shaft (2) is in transmission connection with the engine (11), and the second end of the power output shaft (2) is in transmission connection with the drive axle module (4);
the second driving module (5) comprises a first motor driving unit (51) and a second motor driving unit (52), the first motor driving unit (51) is in transmission connection with the transmission gear (3) through a first planet row (53), and the second motor driving unit (52) is in transmission connection with the transmission gear (3) through a second planet row (54);
the first motor driving unit (51) and the second motor driving unit (52) are configured to selectively drive the transmission gear (3).
2. The powertrain system according to claim 1, wherein the first planetary row (53) comprises a first sun gear (531), a first planet gear (532), a first planet carrier (533) and a first ring gear (534), the first motor drive unit (51) is in transmission connection with the first sun gear (531), the first planet gear (532) is rotatably disposed on the first planet carrier (533), the first planet gear (532) is simultaneously engaged with the first sun gear (531) and the first ring gear (534), the first ring gear (534) is fixedly disposed, and the first planet carrier (533) is engaged with the transmission gear (3) through a first transmission assembly (55).
3. The powertrain system of claim 2, wherein the first planetary row (53) further includes a first needle bearing by which the first planet (532) is rotatably disposed on the first carrier (533).
4. A powertrain system according to claim 2, characterized in that the first transmission assembly (55) comprises a first rotation shaft (551) and a first output gear (552), the first planet carrier (533) is connected with one end of the first rotation shaft (551), the other end of the first rotation shaft (551) is provided with the first output gear (552), and the first output gear (552) is engaged with the transmission gear (3).
5. A powertrain system according to claim 1, characterized in that the second planetary gear set (54) comprises a second sun gear (541), a second planetary gear (542), a second planet carrier (543) and a second ring gear (544), the second motor drive unit (52) is in transmission connection with the second sun gear (541), the second planetary gear (542) is rotatably arranged on the second planet carrier (543), the second planetary gear (542) is simultaneously engaged with the second sun gear (541) and the second ring gear (544), the second ring gear (544) is fixedly arranged, and the second planet carrier (543) is engaged with the transmission gear (3) through a second transmission component (56).
6. The powertrain system of claim 5, wherein the second planetary row (54) further includes a second needle bearing, the second planetary gear (542) being rotatably disposed on the second planet carrier (543) via the second needle bearing.
7. The powertrain system of claim 5, wherein the second transmission assembly (56) comprises a second rotating shaft (561) and a second output gear (562), the second planet carrier (543) is connected with one end of the second rotating shaft (561), the other end of the second rotating shaft (561) is provided with the second output gear (562), and the second output gear (562) is meshed with the transmission gear (3).
8. A powertrain system according to any of claims 1-7, characterized in that the first drive module (1) further comprises a clutch (12) and a gearbox (13), said clutch (12) being arranged between the gearbox (13) and the engine (11), said clutch (12) enabling a fixed connection or disconnection of the gearbox (13) to the engine (11), said gearbox (13) being in driving connection with the first end of the power take-off shaft (2).
9. A powertrain system according to claim 8, characterized in that the drive axle module (4) comprises a middle axle (41) and a rear axle (42) connected in series with each other, the second end of the power take-off shaft (2) being in driving connection with the middle axle (41).
10. A vehicle comprising a wheel (6) and a drive train according to any of claims 1-9, characterized in that the wheel (6) is arranged at both ends of the intermediate axle (41) and the rear axle (42).
CN202111402273.5A 2021-11-23 2021-11-23 Power assembly system and vehicle Pending CN113942384A (en)

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US20190299992A1 (en) * 2016-10-31 2019-10-03 Byd Company Limited Power transmission system and vehicle having same
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CN112706597A (en) * 2021-01-12 2021-04-27 中国重汽集团济南动力有限公司 Double-motor electric drive axle
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