Longitudinal front-drive hybrid transmission

Abstract

The utility model discloses a longitudinal front -drive hybrid transmission, include: input shaft, generator, drive motor, first gear mechanism, shift mechanism, first shift gear group, second shift gear group and power output mechanism, and the rotor of generator is connected with the rotor of input shaft through engine, and the clutch is set up in the rotor of generator, and the rotor of drive motor is connected to one end of clutch, and the rotor of drive motor is connected to the other end of clutch, the coaxial setting of generator and drive motor is connected with shift mechanism through the motor shaft of drive motor with first gear mechanism, and first shift gear group and second shift gear group are connected with power output mechanism. The utility model provides longitudinal front -drive hybrid transmission, sets up the clutch in the rotor of generator, does not occupy transmission axial dimension, further reduces transmission volume, can satisfy longitudinal car type four -drive in the front axle power generation and drive function, has realized higher power integration design and small -size design.

Description

Technical Field

[0001] This utility model relates to the field of hybrid vehicle drive transmission technology, and in particular to a longitudinally mounted front-wheel drive hybrid transmission. Background Technology

[0002] Existing hybrid systems are generally arranged transversely or longitudinally with a four-wheel drive shaft, which cannot meet the space requirements for battery placement in longitudinally mounted hybrid four-wheel drive models. Utility Model Content

[0003] The purpose of this invention is to provide a longitudinally mounted front-wheel-drive hybrid transmission that can solve one or more of the aforementioned problems in the prior art.

[0004] The longitudinally mounted front-wheel-drive hybrid transmission provided by this utility model includes: an input shaft, a generator, a drive motor, a first gear mechanism, a shifting mechanism, a first shifting gear set, a second shifting gear set, and a power output mechanism. The engine is connected to the rotor of the generator via the input shaft. A clutch is installed inside the rotor of the generator. One end of the clutch is connected to the rotor of the generator, and the other end of the clutch is connected to the rotor of the drive motor. The generator and the drive motor are coaxially arranged. The motor shaft of the drive motor is connected to the shifting mechanism via the first gear mechanism. The first shifting gear set and the second shifting gear set are connected to the power output mechanism. The shifting mechanism can achieve gear switching by cooperating with the first shifting gear set and the second shifting gear set.

[0005] In some implementations, a shock absorber is provided between the engine and the generator.

[0006] In some embodiments, the first gear mechanism includes a first driving gear and a first driven gear, the first driving gear and the first driven gear meshing, the first driving gear being disposed on the motor shaft of the drive motor, and the gear shaft of the first driven gear being parallel to the motor shaft of the drive motor.

[0007] In some embodiments, the first shift gear set includes a second driving gear and a second driven gear, the second driving gear and the second driven gear meshing, the second driving gear and the first driven gear being coaxially arranged, and the second driven gear being connected to a power output mechanism.

[0008] In some embodiments, the second shift gear set includes a third driving gear and a third driven gear, the third driving gear and the third driven gear meshing, the third driving gear being coaxially arranged with the first driven gear, and the third driven gear being connected to the power output mechanism.

[0009] In some embodiments, the power output mechanism includes a first bevel gear, a second bevel gear, and a differential. The first bevel gear is connected to a first shift gear set and a second shift gear set. The first bevel gear meshes with the second bevel gear. The second bevel gear is connected to the differential. The output shaft of the differential is perpendicular to the motor shaft of the drive motor.

[0010] The longitudinally mounted front-wheel-drive hybrid transmission provided by this utility model reduces the overall size and cost of the transmission by directly connecting the engine and generator. The clutch is located within the generator rotor, eliminating axial space requirements and further reducing the transmission's size. The power output mechanism integrates a differential, improving the integration of the front axle hybrid system and reducing the overall size and cost of the transmission. The generator and drive motor are coaxially arranged, with the first gear mechanism positioned at the rear of the drive motor, effectively shortening the hybrid gearbox length and providing more space for battery design. The output shaft is perpendicular to the engine crankshaft, enabling direct power output from the front axle to the wheels in longitudinally mounted vehicles. This allows for both range extension and power generation for the entire vehicle, as well as front axle drive and kinetic energy recovery. The shift mechanism is located at the rear of the drive motor, enabling both two-speed output from the engine and two-speed output from the drive motor in parallel mode, reducing torque requirements for both the engine and drive motor and lowering costs. When the front axle drive is not required, the power can be disconnected from the front wheels via the neutral position of the shift mechanism, resulting in even lower energy consumption.

[0011] In addition, unless otherwise specified, all aspects of this utility model technical solution can be implemented by conventional means in the field. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the longitudinally mounted front-wheel-drive hybrid transmission provided in an embodiment of the present invention. Detailed Implementation

[0014] The terms “comprising” and “having”, and any variations thereof, in this specification and claims are intended to cover non-exclusive inclusion, such that a process, method, system, product, or device 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 not explicitly listed or inherent to such process, method, system, product, or device.

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Example: Reference manual attached Figure 1 This utility model embodiment provides a longitudinally mounted front-wheel drive hybrid transmission, including: an input shaft 1, a generator 2, a drive motor 3, a first gear mechanism, a shifting mechanism 5, a first shifting gear set, a second shifting gear set, and a power output mechanism.

[0017] The engine 9 is connected to the rotor of the generator 2 via the input shaft 1, and a shock absorber 10 can be installed between the engine 9 and the input shaft 1. The shock absorber 10 can filter torque fluctuations of the engine 9 or the generator 2. The engine 9 drives the generator 2 to generate electricity through the shock absorber 10.

[0018] Input shaft 1 is connected to the rotor of generator 2. Thus, engine 9 and generator 2 are directly connected. No speed-increasing gear mechanism or speed-increasing planetary gear mechanism is set between engine 9 and generator 2, which reduces the overall size of the gearbox and reduces costs.

[0019] A clutch 21 is installed inside the rotor of the generator 2. One end of the clutch 21 is connected to the rotor of the generator 2, and the other end of the clutch 21 is connected to the rotor of the drive motor 3. Thus, the clutch 21 can transmit or disconnect the power from the engine 9 to the power output mechanism. At the same time, by placing the clutch inside the generator rotor, it does not occupy the axial dimension of the gearbox, further reducing the size of the gearbox.

[0020] The generator 2 and the drive motor 3 are coaxially arranged. The motor shaft of the drive motor 3 is connected to the shifting mechanism 5 through a first gear mechanism. The first shifting gear set and the second shifting gear set are connected to the power output mechanism. The shifting mechanism 5 can switch gears by cooperating with the first shifting gear set and the second shifting gear set. The shifting mechanism 5 is located at the rear end of the drive motor 3, which can realize two-speed output of the engine 9 and two-speed output of the drive motor 3, reducing the torque requirements of the engine 9 and the drive motor 3, and reducing costs.

[0021] The first gear mechanism may include a first driving gear 41 and a first driven gear 42, which mesh with each other. The first driving gear 41 is mounted on the motor shaft of the drive motor 3, and the gear shaft of the first driven gear 42 is parallel to the motor shaft of the drive motor 3. The first gear mechanism is located on the side of the drive motor 3 away from the generator 2, that is, at the rear end of the drive motor 3, which can effectively shorten the length of the hybrid gearbox and reserve more space for battery design in the vehicle.

[0022] In an optional embodiment, the first shift gear set may include a second driving gear 61 and a second driven gear 62, the second driving gear 61 and the second driven gear 62 meshing, the second driving gear 61 being coaxially arranged with the first driven gear 62, and the second driven gear 62 being connected to the power output mechanism. The second shift gear set may include a third driving gear 71 and a third driven gear 72, the third driving gear 71 and the third driven gear 72 meshing, the third driving gear 71 being coaxially arranged with the first driven gear 42, and the third driven gear 72 being connected to the power output mechanism. The power output mechanism may include a first bevel gear 81, a second bevel gear 82, and a differential 83, the first bevel gear 81 being connected to the first shift gear set and the second shift gear set, the first bevel gear 81 meshing with the second bevel gear 82, the second bevel gear 82 being connected to the differential 83, and the output shaft of the differential 83 being perpendicular to the motor shaft of the drive motor 3.

[0023] Therefore, the first driven gear 42, the second driving gear 61, and the third driving gear 71 are arranged coaxially, as are the second driven gear 62, the third driven gear 72, and the first bevel gear 81. The gear shafts of the first driven gear 42 and the second driving gear 61 are arranged parallel to the motor shaft. A shifting mechanism 5 is located between the second driving gear 61 and the third driving gear 71, enabling switching between first gear, second gear, and neutral. When the shifting mechanism 5 is neither connected to the second driving gear 61 nor the third driving gear 71, neutral is engaged.

[0024] The longitudinally mounted front-wheel-drive hybrid transmission provided by this utility model can achieve the following operating modes: In pure electric mode, engine 9 stops, clutch 21 is disengaged, and drive motor 3 outputs power through first drive gear 41, first driven gear 42, second drive gear 61, second driven gear 62, first bevel gear 81 and second bevel gear 82, or through first drive gear 41, first driven gear 42, third drive gear 71, third driven gear 72, first bevel gear 81 and second bevel gear 82, thus realizing the forward and reverse functions of the vehicle; In hybrid low-speed mode, clutch 21 is open and the front axle is in series mode. At this time, generator 2 starts engine 9 through shock absorber 10. After engine 9 starts, it drives generator 2 to generate electricity through shock absorber 10. The electric energy drives drive motor 3 to achieve power output through first drive gear 41, first driven gear 42, third drive gear 71, third driven gear 72, first bevel gear 81 and second bevel gear 82. The whole vehicle has good power performance. In hybrid high-speed mode, clutch 21 is engaged, and the front axle is in parallel mode. At this time, engine 9 outputs power through clutch 21, first drive gear 41, first driven gear 42, second drive gear 61, second driven gear 62, first bevel gear 81 and second bevel gear 82. Drive motor 3 also outputs power or recovers power through first drive gear 41, first driven gear 42, second drive gear 61, second driven gear 62, first bevel gear 81 and second bevel gear 82, resulting in better fuel economy for the whole vehicle. When the vehicle does not require four-wheel drive mode, the shift mechanism 5 is set to neutral, the power of the longitudinal front-wheel drive hybrid transmission is disconnected from the front wheels, and the vehicle can drive by the rear wheels, reducing energy consumption; When the vehicle decelerates, the drive motor 3 recovers kinetic energy through the first driving gear 41, the first driven gear 42, the second driving gear 61, the second driven gear 62, the first bevel gear 81 and the second bevel gear 82, or through the first driving gear 41, the first driven gear 42, the third driving gear 71, the third driven gear 72, the first bevel gear 81 and the second bevel gear 82.

[0025] In range-extending mode, clutch 21 is disengaged, and engine 9 drives generator 2 to generate electricity.

[0026] This utility model provides a longitudinally mounted front-wheel-drive hybrid transmission. By directly connecting the engine and generator, the overall size of the transmission is reduced, lowering costs. The clutch is located within the generator rotor, not occupying the axial dimension of the transmission, further reducing its size. The power output mechanism integrates a differential, improving the integration of the front axle hybrid system and reducing the overall size and cost of the transmission. The generator and drive motor are coaxially arranged, with the first gear mechanism located at the rear of the drive motor, effectively shortening the length of the hybrid gearbox and reserving more space for battery design in the vehicle. The output shaft is perpendicular to the engine crankshaft, enabling direct power output from the front axle to the wheels in longitudinally mounted vehicles. This longitudinally mounted front-wheel-drive hybrid transmission can... This invention enables the vehicle to achieve range extension and power generation, as well as front axle drive and kinetic energy recovery. The shift mechanism is located at the rear of the drive motor, allowing for both two-speed output from the engine and two-speed output from the drive motor in parallel mode, reducing torque requirements for both the engine and drive motor and lowering costs. When the vehicle does not require front axle drive, the shift mechanism can be in neutral to disconnect power from the front wheels, achieving even lower energy consumption. The longitudinally mounted front-wheel-drive hybrid gearbox provided by this invention is suitable for the front axle power layout of pickup trucks or SUV four-wheel-drive vehicles, enabling integrated, miniaturized, and low-cost design of the vehicle's powertrain system, while also providing more space for battery placement.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale, and techniques, methods, and devices known to those skilled in the art may not be discussed in detail; however, where appropriate, such techniques, methods, and devices should be considered part of the specification.

[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0030] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A longitudinally mounted front-wheel-drive hybrid transmission, characterized in that, include: Input shaft (1), generator (2), drive motor (3), first gear mechanism, shifting mechanism (5), first shifting gear set, second shifting gear set and power output mechanism, The engine (9) is connected to the rotor of the generator (2) via the input shaft (1). The generator (2) is equipped with a clutch (21) inside its rotor. One end of the clutch (21) is connected to the rotor of the generator (2), and the other end of the clutch (21) is connected to the rotor of the drive motor (3); The generator (2) and the drive motor (3) are coaxially arranged. The motor shaft of the drive motor (3) is connected to the shifting mechanism (5) through the first gear mechanism. The first shifting gear set and the second shifting gear set are connected to the power output mechanism. The shifting mechanism (5) can switch gears by cooperating with the first shifting gear set and the second shifting gear set.

2. The longitudinally mounted front-wheel-drive hybrid transmission according to claim 1, characterized in that, A shock absorber (10) is provided between the engine and the generator (2).

3. The longitudinally mounted front-wheel-drive hybrid transmission according to claim 1, characterized in that, The first gear mechanism includes a first driving gear (41) and a first driven gear (42). The first driving gear (41) and the first driven gear (42) mesh with each other. The first driving gear (41) is disposed on the motor shaft of the drive motor (3). The gear shaft of the first driven gear (42) is parallel to the motor shaft of the drive motor (3).

4. The longitudinally mounted front-wheel-drive hybrid transmission according to claim 3, characterized in that, The first shift gear set includes a second driving gear (61) and a second driven gear (62). The second driving gear (61) and the second driven gear (62) mesh with each other. The second driving gear (61) is coaxially arranged with the first driven gear (42). The second driven gear (62) is connected to the power output mechanism.

5. The longitudinally mounted front-wheel-drive hybrid transmission according to claim 3, characterized in that, The second shift gear set includes a third driving gear (71) and a third driven gear (72). The third driving gear (71) and the third driven gear (72) mesh with each other. The third driving gear (71) is coaxially arranged with the first driven gear (42). The third driven gear (72) is connected to the power output mechanism.

6. The longitudinally mounted front-wheel-drive hybrid transmission according to claim 1, characterized in that, The power output mechanism includes a first bevel gear (81), a second bevel gear (82), and a differential (83). The first bevel gear (81) is connected to the first shift gear set and the second shift gear set. The first bevel gear (81) meshes with the second bevel gear (82). The second bevel gear (82) is connected to the differential (83). The output shaft of the differential (83) is perpendicular to the motor shaft of the drive motor (3).

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