CN114508582A

CN114508582A - Transmission and automobile

Info

Publication number: CN114508582A
Application number: CN202210160005.5A
Authority: CN
Inventors: 杨宝岩; 周雄宽; 孙国晖; 王巍巍; 李凯鹏
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-05-17

Abstract

The invention relates to the technical field of transmissions, in particular to a transmission and an automobile, which comprise a clutch assembly, a clutch assembly and a clutch assembly, wherein the clutch assembly comprises a C odd clutch and a C even clutch which are coaxially arranged, and the C odd clutch and the C even clutch can be connected with or disconnected from a power input shaft; the main gearbox comprises a main box body, and an odd number gear shaft, an even number gear shaft, a first intermediate shaft, a second intermediate shaft and a primary power output assembly which are rotatably arranged in the main box body; the auxiliary gear box comprises an auxiliary box body, and a power input assembly, a secondary power output assembly and a power output shaft which are rotatably arranged in the auxiliary box body, wherein the power input assembly is in transmission connection with the primary power output assembly, and the secondary power output assembly can be in transmission connection with the power input assembly and realizes power output through the power output shaft. The invention can realize non-power interruption gear shifting, thereby improving the driving control performance of the vehicle.

Description

Transmission and automobile

Technical Field

The invention relates to the technical field of transmissions, in particular to a transmission and an automobile.

Background

With the development of the automobile industry, more and more automobiles enter the production and living field. The automobile provides great convenience for people's trips and logistics transportation. On an automobile, an engine applies work through electric energy or fuel oil, an output shaft of the engine is in transmission connection with a transmission, and power is output through the transmission, so that tires of the automobile are driven to rotate, and the automobile is driven to run on the ground. The transmission is an important power component, and the performance of the transmission determines the performance of the motor vehicle. A transmission is a mechanism for changing the speed and torque from an engine that can change the ratio of the output shaft to the input shaft, either fixed or stepped, to achieve different speed and torque outputs. In the existing commercial vehicle, a multi-gear output mode is adopted for controlling the lifting rotating speed and the torque. However, the conventional multi-gear transmission cannot realize non-power interruption gear shifting, so that the gear shifting process cannot be stably carried out, and the gear shifting performance of a vehicle is affected.

Therefore, a transmission and a vehicle are required to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a transmission and an automobile, which can realize non-power-interruption gear shifting, so that the driving control performance of the automobile is improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a transmission, comprising:

the clutch assembly comprises a C odd clutch and a C even clutch which are coaxially arranged, and the C odd clutch and the C even clutch can be connected with or disconnected from the power input shaft;

the main gear box comprises a main box body, and an odd number gear shaft, an even number gear shaft, a first intermediate shaft, a second intermediate shaft and a primary power output assembly which are rotatably arranged in the main box body, one end of the odd gear shaft is connected with the C odd clutch, one end of the even gear shaft is connected with the C even clutch, the even gear shaft is arranged on the odd gear shaft in a penetrating way, and extends out relative to the odd number gear shafts, the first intermediate shaft and the second intermediate shaft are arranged in parallel with the odd number gear shafts at intervals, odd-numbered gears transmission components are arranged among the odd-numbered gears, the first intermediate shaft and the second intermediate shaft, even-numbered gear transmission components are arranged among the even-numbered gear shafts, the first intermediate shaft and the second intermediate shaft, the primary power output assembly can be in transmission connection with the odd-numbered gear transmission assembly or the even-numbered gear transmission assembly;

the auxiliary gear box comprises an auxiliary box body, and a power input assembly, a secondary power output assembly and a power output shaft which are rotatably arranged in the auxiliary box body, wherein the power input assembly is in transmission connection with the primary power output assembly, the secondary power output assembly can be in transmission connection with the power input assembly, power output is achieved through the power output shaft, and when the secondary power output assembly is disconnected from the power input assembly, the power input assembly can be in transmission connection with the power output shaft to achieve power output.

Optionally, the odd-gear transmission assembly comprises a first-stage gear, an R-gear power gear and an SR synchronizer, the first-stage gear is arranged on the odd-gear shaft, the SR synchronizer is arranged on the first intermediate shaft, the R-gear power gear is sleeved on the first intermediate shaft, and the R-gear power gear is meshed with the first-stage gear through an idler.

Optionally, the odd-numbered stage transmission assembly includes a first-stage gear, a first-stage power gear and a S1 synchronizer, the first-stage gear is disposed on the odd-numbered stage shaft, the first-stage power gear is sleeved on the second intermediate shaft, the S1 synchronizer is disposed on the second intermediate shaft, and the first-stage power gear is engaged with the first-stage gear.

Optionally, the odd-numbered stage transmission assembly includes a secondary gear, a third-numbered stage power gear and a S3 synchronizer, the secondary gear is disposed on the odd-numbered stage shaft, the third-numbered stage power gear is sleeved on the second intermediate shaft, the S3 synchronizer is disposed on the second intermediate shaft, and the third-numbered stage power gear is engaged with the secondary gear.

Optionally, the odd-numbered stage transmission assembly includes a secondary gear, a fifth-numbered stage power gear, and an S5 synchronizer, the secondary gear is disposed on the odd-numbered stage shaft, the fifth-numbered stage power gear is sleeved on the first countershaft, the S5 synchronizer is disposed on the first countershaft, and the fifth-numbered stage power gear is engaged with the secondary gear.

Optionally, the even-numbered stage transmission assembly includes a third-stage gear, a second-stage power gear and an S2 synchronizer, the third-stage gear is disposed on the even-numbered stage shaft, the second-stage power gear is sleeved on the second intermediate shaft, the S2 synchronizer is disposed on the second intermediate shaft, and the second-stage power gear is engaged with the third-stage gear.

Optionally, the even-numbered stage transmission assembly includes a third stage gear, a fourth stage power gear, and an S4 synchronizer, the third stage gear is disposed on the even-numbered stage shaft, the fourth stage power gear is sleeved on the first intermediate shaft, the S4 synchronizer is disposed on the first intermediate shaft, and the fourth stage power gear is engaged with the third stage gear.

Optionally, the even-numbered stage transmission assembly comprises an S6 synchronizer, the S6 synchronizer is provided on the primary power output assembly, and the S6 synchronizer enables the primary power output assembly to engage with the even-numbered stage shaft.

Optionally, the primary power output assembly includes a first output gear, a second output gear and a primary output gear, the first output gear is fixedly disposed on the first intermediate shaft, the second output gear is fixedly disposed on the second intermediate shaft, the primary output gear is fixedly disposed on a primary output shaft, and the primary output gear is meshed with both the first output gear and the second output gear.

Optionally, the power input assembly includes a power input gear fixedly disposed on the primary output shaft and an SL synchronizer disposed on the power output shaft, and the SL synchronizer can be combined with the power input gear to realize power output.

Optionally, the secondary power output assembly includes a secondary output gear and an SH synchronizer, the secondary output gear is rotatably disposed on the power output shaft and is in transmission connection with the power input gear, the SH synchronizer is disposed on the power output shaft, and the SH synchronizer can be combined with the secondary output gear to realize power output.

Optionally, a third intermediate shaft and a fourth intermediate shaft are rotatably arranged in the auxiliary box body, the third intermediate shaft and the fourth intermediate shaft are both arranged in parallel with the power output shaft at intervals, a first gear and a second gear are arranged on the third intermediate shaft, the first gear is meshed with the power input gear, the second gear is meshed with the secondary output gear, a third gear and a fourth gear are arranged on the fourth intermediate shaft, the third gear is meshed with the power input gear, and the fourth gear is meshed with the secondary output gear.

An automobile comprising a transmission as described above.

The invention has the beneficial effects that:

the invention provides a transmission which comprises a clutch assembly, a main gear box and a secondary gear box. The clutch assembly comprises a C odd clutch and a C even clutch, when gear shifting is carried out, the control oil pressure of the corresponding C odd clutch or the C even clutch is gradually reduced according to the gear shifting, meanwhile, the control oil pressure of the other clutch is gradually increased until the control oil pressure of the corresponding clutch is reduced to zero, the control oil pressure of the other clutch reaches a set target pressure, and the gear shifting is completed. In the process, the power transmission from the power input shaft is not interrupted all the time, so that the driving control performance of the vehicle is improved; and adopt the transmission structure that master gear case and pinion box combine, can reduce the length of transmission shaft, guarantee that derailleur simple structure, arrange compactly, master gear case and pinion box mutually cooperate simultaneously can realize the output of many grades.

The automobile provided by the invention comprises the transmission, and non-power-interruption gear shifting can be realized, so that the driving control performance of the automobile 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 diagram of a transmission of the present invention;

FIG. 2 is a shift indicator diagram for a transmission of the present invention.

In the figure:

1. a power input shaft; 2. a C-couple clutch; 3. even number of gear shafts; 4. c odd clutch; 5. odd number gear shafts; 6. a first intermediate shaft; 7. an idler shaft; 8. an R-gear power gear; 9. an idler pulley; 10. an SR synchronizer; 11. s5 synchronizer; 12. a fifth gear power gear; 13. a fourth-gear power gear; 14. s4 synchronizer; 15. a third-stage gear; 16. a first output gear; 17. a first gear; 18. a second gear; 19. a third intermediate shaft; 20. a secondary output gear; 21. a power input gear; 22. a power take-off shaft; 23. an SL synchronizer; 24. an SH synchronizer; 25. a fourth intermediate shaft; 26. a fourth gear; 27. a third gear; 28. a primary output shaft; 29. a primary output gear; 30. a second output gear; 31. s2 synchronizer; 32. a second gear power gear; 33. a third gear power gear; 34. a first-gear power gear; 35. s3 synchronizer; 36. s1 synchronizer; 37. a second intermediate shaft; 38. a secondary gear; 39. a primary gear; 40. s6 synchronizer; 100. a clutch assembly; 200. a main box body; 300. and an auxiliary box body.

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 automobiles, the transmission is an important component, and the performance of the transmission determines the performance of the automobile. A transmission is a mechanism for changing the speed and torque from an engine that can change the ratio of the output shaft to the input shaft, either fixed or stepped, to achieve different speed and torque outputs. On the existing commercial vehicle, in order to promote the control of the rotating speed and the torque, the multi-gear output is realized. However, the conventional multi-gear transmission cannot realize non-power interruption gear shifting, so that the gear shifting process cannot be stably carried out, and the gear shifting performance of a vehicle is affected.

In order to solve the above problems, the present invention provides a transmission as shown in fig. 1 to 2. The transmission includes a clutch assembly 100, a primary gearbox and a secondary gearbox. The clutch assembly 100 comprises a C-odd clutch 4 and a C-even clutch 2 which are coaxially arranged, and both the C-odd clutch 4 and the C-even clutch 2 can be connected with or disconnected from the power input shaft 1.

The main gear box comprises a main box body 200 and an odd-numbered gear shaft 5 rotatably arranged in the main box body 200, an even-numbered gear shaft 3, a first intermediate shaft 6, a second intermediate shaft 37 and a first-level power output assembly, one end of the odd-numbered gear shaft 5 is connected with a C-numbered clutch 4, one end of the even-numbered gear shaft 3 is connected with a C-numbered clutch 2, the even-numbered gear shaft 3 penetrates through the odd-numbered gear shaft 5 and extends out relative to the odd-numbered gear shaft 5, the first intermediate shaft 6 and the second intermediate shaft 37 are arranged in parallel at intervals with the odd-numbered gear shaft 5, an odd-numbered gear transmission assembly is arranged between the odd-numbered gear shaft 5 and the first intermediate shaft 6 as well as between the odd-numbered gear shaft 5 and the second intermediate shaft 37, an even-numbered gear transmission assembly is arranged between the even-numbered gear shaft 3 and the first intermediate shaft 6 as well as between the even-numbered gear shaft 37, and the first-level power output assembly can be in transmission connection with the odd-numbered gear transmission assembly or the even-numbered gear transmission assembly.

The auxiliary gearbox comprises an auxiliary box body 300, and a power input assembly, a secondary power output assembly and a power output shaft 22 which are rotatably arranged in the auxiliary box body 300, wherein the power input assembly is in transmission connection with the primary power output assembly, the secondary power output assembly can be in transmission connection with the power input assembly and realizes power output through the power output shaft 22, and when the secondary power output assembly is disconnected with the power input assembly, the power input assembly can be in transmission connection with the power output shaft 22 to realize power output.

In the gear shifting process, the power transmission from the power input shaft 1 is not interrupted all the time, so that the driving control performance of the vehicle is improved; and adopt the transmission structure that master gear case and pinion box combine, can reduce the length of transmission shaft, guarantee that derailleur simple structure, arrange compactly, master gear case and pinion box mutually cooperate simultaneously can realize the output of many grades.

Optionally, the odd-numbered gear transmission assembly comprises a primary gear 39, an R-numbered gear power gear 8 and an SR synchronizer 10, the primary gear 39 is arranged on the odd-numbered gear shaft 5 through interference press fitting or spline fitting, the SR synchronizer 10 is arranged on the first intermediate shaft 6 through a spline, the R-numbered gear power gear 8 is sleeved on the first intermediate shaft 6, and the R-numbered gear power gear 8 is meshed with the primary gear 39 through an idler gear 9. Specifically, an idler shaft 7 is provided in the main housing 200 in parallel with the first intermediate shaft 6, and an idler 9 is rotatably provided on the idler shaft 7. When the SR synchronizer 10 is engaged with the R-range power gear 8, R-range power output is achieved.

Optionally, the odd-numbered stage transmission assembly comprises a primary gear 39, a first-stage power gear 34 and an S1 synchronizer 36, the primary gear 39 is arranged on the odd-numbered stage shaft 5 through interference press fitting or spline fitting, the first-stage power gear 34 is sleeved on the second intermediate shaft 37, the S1 synchronizer 36 is arranged on the second intermediate shaft 37 through splines, and the first-stage power gear 34 is meshed with the primary gear 39. When the synchronizer 36 is engaged with the first-gear power gear 34 at S1, the first-gear power output is achieved.

Optionally, the odd-numbered stage transmission assembly comprises a second-stage gear 38, a third-stage power gear 33 and an S3 synchronizer 35, the second-stage gear 38 is arranged on the odd-numbered stage shaft 5 through interference press fitting or spline fitting, the third-stage power gear 33 is sleeved on the second intermediate shaft 37, the S3 synchronizer 35 is arranged on the second intermediate shaft 37 through splines, and the third-stage power gear 33 is meshed with the second-stage gear 38. When the synchronizer 35 is engaged with the third power gear 33 at S3, the third power output is realized.

Optionally, the odd-numbered stage transmission assembly comprises a secondary gear 38, a fifth-numbered stage power gear 12 and an S5 synchronizer 11, the secondary gear 38 is arranged on the odd-numbered stage shaft 5 through interference press fitting or spline fitting, the fifth-numbered stage power gear 12 is sleeved on the first intermediate shaft 6, the S5 synchronizer 11 is arranged on the first intermediate shaft 6 through splines, and the fifth-numbered stage power gear 12 is meshed with the secondary gear 38. When the synchronizer 11 is engaged with the power gear 12 of the fifth gear at S5, power output of the fifth gear is realized.

Optionally, the even-numbered stage transmission assembly includes a third stage gear 15, a second stage power gear 32 and an S2 synchronizer 31, the third stage gear 15 is disposed on the even-numbered stage shaft 3 by interference press fitting or spline fitting, the second stage power gear 32 is sleeved on the second intermediate shaft 37, the S2 synchronizer 31 is disposed on the second intermediate shaft 37 by spline, and the second stage power gear 32 is meshed with the third stage gear 15. When the synchronizer 31 is engaged with the second gear power gear 32 at S2, the second gear power output is realized.

Optionally, the even-numbered gear transmission assembly comprises a third-gear 15, a fourth-gear power gear 13 and an S4 synchronizer 14, the third-gear 15 is arranged on the even-numbered gear shaft 3 through interference press fitting or spline fitting, the fourth-gear power gear 13 is sleeved on the first intermediate shaft 6, the S4 synchronizer 14 is arranged on the first intermediate shaft 6 through splines, and the fourth-gear power gear 13 is meshed with the third-gear 15. When the synchronizer 14 is engaged with the fourth-gear power gear 13 at S4, the fourth-gear power output is realized.

Alternatively, the even-numbered stage transmission assembly includes the synchronizer 40 of S6, the synchronizer 40 of S6 is provided on the primary output shaft 28 of the primary power output assembly, and the synchronizer 40 of S6 enables the primary power output assembly to engage with the even-numbered stage shaft 3, achieving the power output of the sixth stage.

Alternatively, the primary power output assembly includes a first output gear 16, a second output gear 30, and a primary output gear 29, the first output gear 16 being fixedly disposed on the first countershaft 6, the second output gear 30 being fixedly disposed on the second countershaft 37, the primary output gear 29 being fixedly disposed on the primary output shaft 28, the primary output gear 29 meshing with both the first output gear 16 and the second output gear 30. By providing a primary power output assembly, power output can be achieved from the power of the first intermediate shaft 6 or the second intermediate shaft 37.

Alternatively, the power input assembly includes a power input gear 21 and an SL synchronizer 23, the power input gear 21 is fixedly disposed on the primary output shaft 28, the SL synchronizer 23 is disposed on the power output shaft 22, and the SL synchronizer 23 can be combined with the power input gear 21 to achieve power output. Specifically, the SL synchronizer 23 is connected with the power output shaft 22 by spline fitting, and the SL synchronizer 23 can realize power output in combination with the power input gear 21.

Alternatively, the secondary power output assembly comprises a secondary output gear 20 and an SH synchronizer 24, the secondary output gear 20 is rotatably arranged on the power output shaft 22 and is in transmission connection with the power input gear 21, the SH synchronizer 24 is arranged on the power output shaft 22, and the SH synchronizer 24 can be combined with the secondary output gear 20 to realize power output.

Optionally, a third intermediate shaft 19 and a fourth intermediate shaft 25 are rotatably arranged in the auxiliary box 300, the third intermediate shaft 19 and the fourth intermediate shaft 25 are both arranged in parallel with the power output shaft 22 at intervals, a first gear 17 and a second gear 18 are arranged on the third intermediate shaft 19, the first gear 17 is meshed with the power input gear 21, the second gear 18 is meshed with the secondary output gear 20, a third gear 27 and a fourth gear 26 are arranged on the fourth intermediate shaft 25, the third gear 27 is meshed with the power input gear 21, and the fourth gear 26 is meshed with the secondary output gear 20. By arranging the third intermediate shaft 19 and the fourth intermediate shaft 25, power split can be realized in the process of power output, and then power is output by converging through the power output shaft 22. In the process, the third intermediate shaft 19 and the fourth intermediate shaft 25 bear loads together with the power output shaft 22, so that the load borne by each shaft is reduced, the strength of the power output shaft 22 is ensured, and the service life of the power output shaft 22 is prolonged.

Taking the first gear as an example, the power transmission process is described. The odd clutch 4, the synchronizer 36 of S1 and the synchronizer 23 of SL are all engaged, and the power from the power input shaft 1 passes through the odd clutch 4, the odd gear shaft 5, the first gear 39, the first gear power gear 34, the synchronizer 36 of S1, the second intermediate shaft 37, the second output gear 30, the first output gear 29, the first output shaft 28, the power input gear 21, the first gear 17 and the third gear 27, the third intermediate shaft 19 and the fourth intermediate shaft 25, the second gear 18 and the fourth gear 26, the secondary output gear 20, the synchronizer 23 of SL and the power output shaft 22, so that the first gear output is realized.

The non-power-off shift process will be described with the first gear up and the second gear up as an example. The C-odd clutch 4, the S1 synchronizer 36, and the SL gear synchronizer are all kept engaged, while the transmission is in first gear. The synchronizer of the S2 gear is engaged, and the control oil pressure of the odd C clutch 4 is gradually decreased and the control oil pressure of the even C clutch 2 is gradually increased until the control oil pressure of the odd C clutch 4 drops to zero and the control oil pressure of the even C clutch 2 reaches the set target pressure. At this time, the transmission is switched to the second gear, and during this process, the power transmission from the power input shaft 1 is not interrupted at all times.

The transmission provided by the invention adopts a main box structure and an auxiliary box structure, and can realize non-power-interruption gear shifting. The transmission main box and the transmission auxiliary box are cylindrical gears, the double clutches are coaxial and parallel, the synchronizers are respectively arranged on two intermediate shafts, a first-level output shaft and a power output shaft, and the two intermediate shafts have different center distances, so that the double-clutch transmission with a simple structure and compact arrangement can be realized.

The transmission provided by the embodiment has the first intermediate shaft 6 and the second intermediate shaft 37 arranged in parallel and spaced with the odd-numbered gear shafts 5, thereby forming a transmission with a parallel double clutch. The transmission has the following advantages:

1. the odd clutch 4 and the even clutch 2 have the same torque transmission capacity, so that lubrication is improved, and starting is strengthened.

2. The gears on the main gear box and the auxiliary gear box are cylindrical gears, so that the gear box is low in cost, simple in structure and convenient to produce, and the processing cost is reduced.

3. The auxiliary gear box is of a double-intermediate-shaft structure comprising a third intermediate shaft 19 and a fourth intermediate shaft 25, the output power of an output shaft 28 is split by the third intermediate shaft 19 and the fourth intermediate shaft 25, and the third intermediate shaft 19 and the fourth intermediate shaft 25 are small in load and long in service life.

4. Each gear of the odd-numbered gear shaft 5 and the even-numbered gear shaft 3 is meshed with the idle gears on the first intermediate shaft 6 and the second intermediate shaft 37 respectively, and power is transmitted to the first intermediate shaft 6 and the second intermediate shaft 37, so that the odd-numbered gear shaft 5, the even-numbered gear shaft 3, the first intermediate shaft 6 and the second intermediate shaft 37 are short in axial length, good in rigidity and light in weight.

The embodiment also provides an automobile which comprises the transmission, and the non-power-interruption gear shifting can be realized, so that the driving control performance of the automobile is improved. When shifting is carried out, the control oil pressure of the corresponding odd clutch or the C even clutch is gradually reduced and the control oil pressure of the other clutch is gradually increased according to the shifting until the control oil pressure drop of the corresponding clutch is zero and the control oil pressure of the other clutch reaches the set target pressure, and the shifting is finished. In the process, the power transmission from the power input shaft is not interrupted all the time, so that the driving control performance of the vehicle is improved; and adopt the transmission structure that master gear case and pinion box combine, can reduce the length of transmission shaft, guarantee that derailleur simple structure, arrange compactly, master gear case and pinion box mutually cooperate simultaneously can realize the output of many grades.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A transmission, comprising:

the clutch assembly (100) comprises a C odd clutch (4) and a C even clutch (2) which are coaxially arranged, and the C odd clutch (4) and the C even clutch (2) can be connected with or disconnected from the power input shaft (1);

the main gear box comprises a main box body (200) and an odd-numbered gear shaft (5), an even-numbered gear shaft (3), a first intermediate shaft (6), a second intermediate shaft (37) and a primary power output assembly which are rotatably arranged in the main box body (200), one end of the odd-numbered gear shaft (5) is connected with a C-odd clutch (4), one end of the even-numbered gear shaft (3) is connected with a C-even clutch (2), the even-numbered gear shaft (3) penetrates through the odd-numbered gear shaft (5) and is opposite to the odd-numbered gear shaft (5), the first intermediate shaft (6) and the second intermediate shaft (37) are arranged in parallel at intervals with the odd-numbered gear shaft (5), the odd-numbered gear shaft (5) is arranged between the first intermediate shaft (6) and the second intermediate shaft (37), and an even-numbered gear transmission assembly is arranged between the even-numbered gear shaft (3) and the first intermediate shaft (6) and the second intermediate shaft (37) The primary power output assembly can be in transmission connection with the odd-numbered gear transmission assembly or the even-numbered gear transmission assembly;

the auxiliary gear box comprises an auxiliary box body (300), and a power input assembly, a secondary power output assembly and a power output shaft (22) which are rotatably arranged in the auxiliary box body (300), wherein the power input assembly is in transmission connection with the primary power output assembly, the secondary power output assembly can be in transmission connection with the power input assembly and realizes power output through the power output shaft (22), and when the secondary power output assembly is disconnected from the power input assembly, the power input assembly can be in transmission connection with the power output shaft (22) to realize power output.

2. A transmission according to claim 1, characterized in that the odd-numbered stage transmission assembly comprises a primary gear (39), an R-stage power gear (8) and an SR synchronizer (10), the primary gear (39) being arranged on the odd-numbered stage shaft (5), the SR synchronizer (10) being arranged on the first countershaft (6), the R-stage power gear (8) being in mesh with the primary gear (39) via an idler gear (9).

3. A transmission according to claim 1, characterized in that the odd-numbered stage transmission assembly comprises a primary gear wheel (39), a primary power gear wheel (34) and a synchronizer (36) of S1, the primary gear wheel (39) being arranged on the odd-numbered stage shaft (5), the primary power gear wheel (34) being arranged on the second countershaft (37), the synchronizer (36) of S1 being arranged on the second countershaft (37), the primary power gear wheel (34) being in mesh with the primary gear wheel (39).

4. A transmission according to claim 1, characterized in that the odd-numbered stage transmission assembly comprises a secondary gear (38), a third-numbered stage power gear (33) and a synchronizer (35) of S3, the secondary gear (38) being arranged on the odd-numbered stage shaft (5), the third-numbered stage power gear (33) being arranged on the second countershaft (37), the synchronizer (35) of S3 being arranged on the second countershaft (37), the third-numbered stage power gear (33) being in mesh with the secondary gear (38).

5. A transmission according to claim 1, characterized in that the odd-numbered stage transmission assembly comprises a secondary gear (38), a fifth-numbered stage power gear (12) and a synchronizer (11) of S5, the secondary gear (38) being arranged on the odd-numbered stage shaft (5), the fifth-numbered stage power gear (12) being arranged on the first countershaft (6), the synchronizer (11) of S5 being arranged on the first countershaft (6), the fifth-numbered stage power gear (12) being in mesh with the secondary gear (38).

6. A transmission as claimed in claim 1, characterized in that said even-numbered stage transmission assembly comprises a tertiary gear (15), a secondary power gear (32) and a S2 synchronizer (31), said tertiary gear (15) being arranged on said even-numbered stage shaft (3), said secondary power gear (32) being arranged on said second countershaft (37), said S2 synchronizer (31) being arranged on said second countershaft (37), said secondary power gear (32) being in mesh with said tertiary gear (15).

7. A transmission as claimed in claim 1, characterized in that said even-numbered stage transmission assembly comprises a tertiary gear (15), a quaternary power gear (13) and a S4 synchronizer (14), said tertiary gear (15) being arranged on said even-numbered stage shaft (3), said quaternary power gear (13) being fitted over said first countershaft (6), said S4 synchronizer (14) being arranged on said first countershaft (6), said quaternary power gear (13) being in mesh with said tertiary gear (15).

8. A transmission as claimed in claim 1, characterised in that the even-numbered stage transmission assembly comprises a S6 synchronizer (40), the S6 synchronizer (40) being provided on the primary power take-off assembly, the S6 synchronizer (40) being capable of engaging the primary power take-off assembly with the even-numbered stage shaft (3).

9. A transmission as claimed in claim 1, characterised in that the primary power take-off assembly comprises a first output gear (16), a second output gear (30) and a primary output gear (29), the first output gear (16) being fixedly arranged on the first intermediate shaft (6), the second output gear (30) being fixedly arranged on the second intermediate shaft (37), the primary output gear (29) being fixedly arranged on a primary output shaft (28), the primary output gear (29) being in mesh with both the first output gear (16) and the second output gear (30).

10. A transmission according to claim 9, characterised in that the power input assembly comprises a power input gear (21) and an SL synchronizer (23), the power input gear (21) being fixedly arranged on the primary output shaft (28), the SL synchronizer (23) being arranged on the power output shaft (22), the SL synchronizer (23) being capable of achieving a power output in combination with the power input gear (21).

11. A transmission as claimed in claim 10, characterized in that the secondary power take-off assembly comprises a secondary output gear (20) and an SH synchronizer (24), the secondary output gear (20) being rotatably arranged on the power take-off shaft (22) and being in driving connection with the power input gear (21), the SH synchronizer (24) being arranged on the power take-off shaft (22), the SH synchronizer (24) being capable of effecting a power take-off in conjunction with the secondary output gear (20).

12. A transmission as claimed in claim 11, characterized in that a third intermediate shaft (19) and a fourth intermediate shaft (25) are rotatably arranged in the auxiliary casing (300), the third intermediate shaft (19) and the fourth intermediate shaft (25) are both arranged in parallel with the power output shaft (22) and spaced apart from each other, a first gear (17) and a second gear (18) are arranged on the third intermediate shaft (19), the first gear (17) is engaged with the power input gear (21), the second gear (18) is engaged with the secondary output gear (20), a third gear (27) and a fourth gear (26) are arranged on the fourth intermediate shaft (25), the third gear (27) is engaged with the power input gear (21), and the fourth gear (26) is engaged with the secondary output gear (20).

13. A motor vehicle comprising a transmission according to any one of claims 1 to 12.