Hybrid gearbox and vehicle applying same

Abstract

The utility model discloses a hybrid power gearbox and a vehicle applying the hybrid power gearbox, the hybrid power gearbox comprises an input shaft, a first planet row, a generator, a clutch, a driving motor, a second planet row and an output shaft, a planet carrier of the first planet row is connected with the input shaft, a gear ring of the first planet row is fixed on a box body of the hybrid power gearbox, and the output shaft is connected with the generator. A sun gear of the first planet row is connected with the generator, the input end of the clutch is connected with the input shaft, the output end of the clutch is connected with the output shaft, a planet carrier of the second planet row is connected with the output shaft, a gear ring of the second planet row is fixed to a box body of the hybrid transmission, and a sun gear of the second planet row is connected with the driving motor. The input shaft and the output shaft are coaxially arranged. According to the hybrid gearbox and the vehicle applying the hybrid gearbox, the axial size and the radial size of the hybrid gearbox are shortened, the structure of the hybrid gearbox is more compact, the weight is lighter, fuel economy is improved, and meanwhile the space utilization rate of the whole vehicle is effectively improved.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of hybrid vehicle drive transmission, and in particular to a hybrid transmission and a vehicle using the same. Background Art

[0002] A hybrid vehicle is a power system that combines the electric energy of a power battery with a certain form of engine through a motor to achieve vehicle drive. The connection between the engine and the motor in a hybrid vehicle is often referred to as a hybrid configuration.

[0003] In order to improve fuel economy and achieve energy conservation and emission reduction, automatic transmissions and hybrid transmissions must be lightweight. However, the common hybrid transmissions currently use parallel shaft reduction gear designs, which make the axial dimensions of the transmission larger, and the volume and weight of the transmission are large, which is not conducive to improving fuel economy. Utility Model Content

[0004] The purpose of the present utility model is to provide a hybrid transmission and a vehicle using the same, which can solve one or more of the above-mentioned prior art problems.

[0005] According to a first aspect of the present utility model, a hybrid transmission is provided, comprising:

[0006] An input shaft, a first planetary row, a generator, a clutch, a drive motor, a second planetary row and an output shaft, the planet carrier of the first planetary row is connected to the input shaft, the ring gear of the first planetary row is fixed on the housing of the hybrid transmission, the sun gear of the first planetary row is connected to the generator, the input end of the clutch is connected to the input shaft, the output end of the clutch is connected to the output shaft, the planet carrier of the second planetary row is connected to the output shaft, the ring gear of the second planetary row is fixed on the housing of the hybrid transmission, the sun gear of the second planetary row is connected to the drive motor, and the input shaft and the output shaft are coaxially arranged.

[0007] In some embodiments, the input shaft is connected to the engine.

[0008] In some embodiments, a vibration damper is disposed between the input shaft and the engine.

[0009] In some embodiments, the first planetary gear is disposed on a side of the generator away from the drive motor.

[0010] In some embodiments, the first planetary gear is disposed on a side of the generator close to the drive motor.

[0011] In some embodiments, the second planetary gear is disposed on a side of the driving motor away from the generator.

[0012] In some embodiments, the second planetary gear is disposed on a side of the drive motor close to the generator.

[0013] According to a second aspect of the present invention, a vehicle is provided, using any one of the hybrid transmissions described above.

[0014] The hybrid transmission and the vehicle using the same provided by the utility model shorten the axial and radial dimensions of the hybrid transmission through the design of the first planetary gearbox and the second planetary gearbox, making the structure of the hybrid transmission more compact and lighter, thereby improving fuel economy and effectively improving the space utilization of the entire vehicle.

[0015] In addition, in the technical solution of the present utility model, unless otherwise specified, the technical solution can be implemented by adopting conventional means in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic structural diagram of a hybrid transmission provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The terms "including" and "having" and any variations thereof in the present utility model specification and claims are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or are inherent to these processes, methods, systems, products or apparatuses.

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Manual Attached Figure 1 The embodiment of the utility model provides a hybrid transmission, including: an input shaft 1, a first planetary gear 2, a generator 3, a clutch 4, a drive motor 5, a second planetary gear 6 and an output shaft 7, wherein the input shaft 1 and the output shaft 7 are coaxially arranged.

[0021] The input shaft 1 is connected to the engine 9, and a vibration damper 8 may be provided between the input shaft 1 and the engine 9. Thus, the vibration damper 8 can filter the torque fluctuation of the engine 9 or the generator 3.

[0022] The planet carrier of the first planetary gearbox 2 is connected to the input shaft 1, the ring gear of the first planetary gearbox 2 is fixed on the housing of the hybrid transmission, and the sun gear of the first planetary gearbox 2 is connected to the generator 3. Thus, the speed increase design of the engine 9 to the generator 3 is realized, and a wider range of speed increase ratios of the engine 9 to the generator 3 can be achieved, and the engine 9 and the generator 3 can achieve a more efficient power generation function, thereby improving the power generation efficiency.

[0023] The planet carrier of the second planetary gearbox 6 is connected to the output shaft 7, the ring gear of the second planetary gearbox 6 is fixed on the housing of the hybrid transmission, and the sun gear of the second planetary gearbox 6 is connected to the drive motor 5. Thus, the deceleration and torque increase output of the drive motor 5 is achieved.

[0024] The input end of the clutch 4 is connected to the input shaft 1, and the output end of the clutch 4 is connected to the output shaft 7. Thus, the clutch 4 can realize the power connection and disconnection between the input shaft 1 and the output shaft 7; at low vehicle speed, the clutch 4 is opened, the engine 9 drives the generator 3 to generate electricity through the first planetary gear 2, and the electric energy drives the drive motor 5 to realize power output. The drive motor 5 has a large torque at low speed, which can meet the acceleration and climbing requirements of the vehicle. When the vehicle decelerates, kinetic energy can be recovered through the drive motor 5. At medium and high vehicle speeds, the clutch 4 is closed, and the power of the engine 9 is directly driven to reduce energy consumption. When the vehicle decelerates, kinetic energy can also be recovered through the drive motor 5.

[0025] The hybrid transmission provided by the utility model can achieve shorter axial and radial dimensions of the hybrid transmission compared to the traditional structure, which is beneficial to the structural design of the hybrid transmission, making the structure of the hybrid transmission more compact and lighter, thereby improving fuel economy while effectively improving the space utilization of the entire vehicle. It is suitable for light commercial vehicles such as pickup trucks or light trucks, and can reduce energy consumption under high and low speed conditions.

[0026] In an optional embodiment, the first planetary gear 2 may be disposed on a side of the generator 3 away from the drive motor 5 ; the first planetary gear 2 may also be disposed on a side of the generator 3 close to the drive motor 5 .

[0027] In an optional embodiment, the second planetary gear 6 may be arranged on a side of the drive motor 5 away from the generator 3 ; the second planetary gear 6 may also be arranged on a side of the drive motor 5 close to the generator 3 .

[0028] When the first planetary row 2 is arranged on the side of the generator 3 away from the drive motor 5, and the second planetary row 6 can be arranged on the side of the drive motor 5 away from the generator 3, the order of the structures in the hybrid transmission can be: the first planetary row 2, the generator 3, the clutch 4, the drive motor 5, and the second planetary row 6. At this time, the clutch 4 is located between the generator 3 and the drive motor 5, the input end of the clutch 4 is connected to the input shaft 1, and the output end of the clutch 4 is connected to the output shaft 7.

[0029] This embodiment also shows a vehicle that uses any one of the above-mentioned hybrid transmissions.

[0030] The hybrid transmission and the vehicle using the same provided by the utility model realize coaxial arrangement of the input of the first planetary gear and the output of the sun gear in the two planetary gears, and the coaxial arrangement of the reduction planetary gear and the drive motor, thereby shortening the axial and radial dimensions of the hybrid transmission, making the structure of the hybrid transmission more compact and lighter, improving fuel economy and effectively improving the space utilization of the entire vehicle.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the components and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship, and the techniques, methods and devices known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be regarded as part of the authorization specification.

[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0034] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A hybrid transmission, characterized in that: include: An input shaft (1), a first planetary gear (2), a generator (3), a clutch (4), a drive motor (5), a second planetary gear (6) and an output shaft (7), The planet carrier of the first planetary gear (2) is connected to the input shaft (1), the ring gear of the first planetary gear (2) is fixed on the housing of the hybrid transmission, and the sun gear of the first planetary gear (2) is connected to the generator (3). The input end of the clutch (4) is connected to the input shaft (1), and the output end of the clutch (4) is connected to the output shaft (7). The planet carrier of the second planetary gear (6) is connected to the output shaft (7), the ring gear of the second planetary gear (6) is fixed on the housing of the hybrid transmission, and the sun gear of the second planetary gear (6) is connected to the drive motor (5). The input shaft (1) and the output shaft (7) are coaxially arranged.

2. The hybrid transmission according to claim 1, characterized in that: The input shaft (1) is connected to the engine (9).

3. The hybrid transmission according to claim 1, characterized in that: A vibration damper (8) is arranged between the input shaft (1) and the engine (9).

4. The hybrid transmission according to claim 1, characterized in that: The first planetary gear (2) is arranged on a side of the generator (3) away from the drive motor (5).

5. The hybrid transmission according to claim 1, characterized in that: The first planetary gear (2) is arranged on a side of the generator (3) close to the drive motor (5).

6. The hybrid transmission according to claim 1, characterized in that: The second planetary gear (6) is arranged on a side of the drive motor (5) away from the generator (3).

7. The hybrid transmission according to claim 1, characterized in that: The second planetary gear (6) is arranged on a side of the drive motor (5) close to the generator (3).

8. A vehicle, characterized in that: A hybrid transmission as claimed in any one of claims 1 to 7.

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