Eamt structure integrated with rear power take-off accessory drive and vehicle

Abstract

The application relates to an EAMT structure integrated with a rear power take-off accessory drive and a vehicle, which comprises an engine connected with a gearbox through a transmission shaft, a motor set connected with a planetary gear mechanism, the planetary gear mechanism being sleeved on the outer wall of the transmission shaft, a coupling and decoupling mechanism I installed on the transmission shaft and located between the planetary gear mechanism and the gearbox, and a rear power take-off mechanism connected with the planetary gear mechanism. The motor set, the rear power take-off mechanism and the driving of the whole vehicle can be integrated together, the driving of the rear power take-off mechanism of the hybrid commercial vehicle is realized without additionally increasing the motor and the motor control, the driving and arrangement requirements of the rear power take-off mechanism of the vehicle can be met to the maximum extent, and the cost and economy of the hybrid commercial vehicle are improved.

Description

Technical Field

[0001] This invention relates to the field of hybrid EAMT (Electronic Energy Take-Off Vehicle), specifically to an EAMT structure and vehicle with integrated rear power take-off accessory drive. Background Technology

[0002] Currently, the main potential application scenarios for hybrid commercial vehicles, such as engineering vehicles, cement mixer trucks, and urban garbage collection vehicles, have a demand for rear-take-off drive accessories.

[0003] In related technologies, the main drive solutions for rear take-off (PTO) accessories include: a mechanical drive solution that takes power from the engine flywheel, a mechanical drive solution that takes power from the gearbox, and an electric drive solution that draws power directly from the battery and then uses a separate motor to drive the PTO accessory. Different PTO accessory drive solutions are selected based on different usage scenarios.

[0004] However, mechanical drive schemes that take power from the engine flywheel end are commonly used in traditional internal combustion engine vehicles. Since the engine operating conditions and the power take-off requirements are independent of each other, hybrid commercial vehicles using this structure cannot stop the engine according to economic needs, which affects the economic improvement effect of hybrid vehicles.

[0005] Mechanical drive schemes that take power from the gearbox: The power take-off position needs to be moved significantly back relative to the engine flywheel. This problem is further aggravated by the addition of a motor coupling mechanism, making it difficult or impossible to install the rear power take-off accessory.

[0006] An electric drive scheme that draws power directly from the battery and drives the rear power take-off accessory with a separate motor: This scheme is completely decoupled from the vehicle's drive system, and its layout and use are not limited by the vehicle's drive system. However, this method requires an additional motor and a motor drive control system, which is more expensive. Summary of the Invention

[0007] This application provides an EAMT structure and vehicle with integrated rear power take-off accessory drive, which can integrate the motor set to drive the rear power take-off mechanism and the whole vehicle together. It realizes the drive of the rear power take-off mechanism of the hybrid commercial vehicle without adding an extra motor and motor control, which can maximize the driving and layout requirements of the vehicle's rear power take-off mechanism, while improving the cost and economy of the hybrid commercial vehicle.

[0008] In a first aspect, embodiments of this application provide an EAMT structure with integrated rear power take-off (PTO) drive, comprising: an engine connected to a gearbox via a drive shaft; a motor assembly connected to a planetary gear mechanism, the planetary gear mechanism being sleeved on the outer wall of the drive shaft; a coupling and decoupling mechanism one mounted on the drive shaft and connected to the planetary gear mechanism, the coupling and decoupling mechanism one being located between the planetary gear mechanism and the gearbox; and a rear PTO mechanism connected to the planetary gear mechanism; when the coupling and decoupling mechanism one is coupled to the planetary gear mechanism, the planetary gear mechanism can drive the rear PTO mechanism; when the coupling and decoupling mechanism one is decoupled from the planetary gear mechanism, the planetary gear mechanism is disconnected from the rear PTO mechanism.

[0009] In conjunction with the first aspect, in one embodiment, the planetary gear mechanism includes:

[0010] A planetary carrier is fitted onto the outer wall of the drive shaft, and an external gear ring is fitted onto the outer wall of the planetary carrier. The external gear ring meshes with the input end of the rear power take-off mechanism.

[0011] One end of the planetary carrier is connected to the motor assembly, and the other end of the planetary carrier is connected to the coupling and decoupling mechanism.

[0012] In conjunction with the first aspect, in one embodiment, the rear power take-off mechanism includes:

[0013] A first gear, which meshes with the external gear ring;

[0014] A rear power take-off shaft, one end of which is connected to the first gear, and the other end of which is connected to a rear power take-off output component;

[0015] Coupling and decoupling mechanism two, wherein the coupling and decoupling mechanism two is installed between the rear power take-off shaft and the rear power take-off output component;

[0016] The second coupling and decoupling mechanism can drive the rear power take-off component to couple with the rear power take-off shaft, or drive the rear power take-off component to decouple from the rear power take-off shaft.

[0017] In conjunction with the first aspect, in one embodiment, a first coupling disk is fitted onto the outer wall of the other end of the planetary carrier;

[0018] The coupling and decoupling mechanism includes:

[0019] The second coupling disk is keyed to the drive shaft;

[0020] A cylinder, wherein the telescopic end of the cylinder is connected to the second coupling disc;

[0021] The telescopic end of the cylinder can push the second coupling disk to couple or decouple from the first coupling disk.

[0022] In conjunction with the first aspect, in one embodiment, the planetary gear mechanism includes:

[0023] Multiple planetary gear bodies are sleeved on one end of the planet carrier. The multiple planetary gear bodies are spaced apart along the circumferential direction of the planet carrier, and the outer walls of the multiple planetary gear bodies are meshed with internal gear rings.

[0024] A sun gear, which is disposed between and meshes with the planetary gear bodies;

[0025] The motor unit meshes with the sun gear.

[0026] In conjunction with the first aspect, in one embodiment, the motor unit includes:

[0027] Multiple electric motors are distributed at intervals along the circumference of the sun gear and all of them mesh with the sun gear.

[0028] In conjunction with the first aspect, in one embodiment, the power of each of the plurality of motors is different.

[0029] In conjunction with the first aspect, in one embodiment, the number of the plurality of motors is three, the first and second motors have the same power, and the third motor has a power greater than or less than the power of the first and second motors.

[0030] In conjunction with the first aspect, in one embodiment, the motor unit further includes:

[0031] A battery pack, which is electrically connected to a plurality of motors, and an electronically controlled driver is installed between the battery pack and the plurality of motors.

[0032] Secondly, embodiments of this application provide a vehicle that includes an EAMT structure with integrated rear power take-off accessory drive as described in some of the above embodiments.

[0033] The beneficial effects of the technical solutions provided in this application include at least the following:

[0034] By adding a coupling and decoupling mechanism between the planetary gear mechanism and the transmission, and connecting the planetary gear mechanism to the rear power take-off (PTO), it is possible to selectively distribute power to the PTO in engine-only mode, or in pure electric mode without adding an additional motor and motor control, or in hybrid mode, both can provide power output to the PTO. This solves the problems of related technologies, such as engine flywheel-end PTO solutions, which prevent the engine from stopping according to economic needs in hybrid commercial vehicles; transmission-based rear PTO solutions, which make rear PTO attachment placement difficult or impossible, or force an increase in vehicle length; and separate motor-driven rear PTO solutions, which are costly due to the additional motor and motor drive control system. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the EAMT structure for integrated power take-off attachment drive;

[0037] Figure 2 This is a schematic diagram of the coupling and decoupling structure.

[0038] In the diagram: 1. Engine; 2. Driveshaft; 3. Gearbox; 4. Motor assembly; 41. Electric motor; 42. Battery pack; 43. Electronically controlled driver; 5. Planetary gear mechanism; 51. Planetary carrier; 52. First coupling plate; 53. Planetary gear body; 54. Internal gear ring; 55. Sun gear; 6. Coupling and decoupling mechanism one; 61. Second coupling plate; 62. Cylinder; 63. Connecting rod; 7. Rear power take-off mechanism; 71. First gear; 72. Rear power take-off shaft; 73. Rear power take-off output component; 74. Coupling and decoupling mechanism two; 8. Clutch; 9. Rear axle assembly. Detailed Implementation

[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0040] It's important to note that EAMT stands for Electric-Electric-Mechanical Automatic Transmission. It combines an electric drive system and an electronically controlled mechanical automatic transmission into a single product, representing a significant evolution of AMT. EAMT is mounted on the rear axle. Because this transmission has its own electric drive unit, it is unaffected by interruptions in engine traction, allowing for continuous power output and improving the vehicle's acceleration.

[0041] This application provides an EAMT structure and vehicle with integrated rear power take-off accessory drive, which can integrate the motor set to drive the rear power take-off mechanism and the whole vehicle together. It realizes the drive of the rear power take-off mechanism of the hybrid commercial vehicle without adding an extra motor and motor control, which can maximize the driving and layout requirements of the vehicle's rear power take-off mechanism, while improving the cost and economy of the hybrid commercial vehicle.

[0042] like Figure 1 As shown in the figure, this application embodiment provides an EAMT structure with integrated rear power take-off (PTO) drive, which may include: an engine 1, the engine 1 being connected to a gearbox 3 via a drive shaft 2; a motor assembly 4, the motor assembly 4 being connected to a planetary gear mechanism 5, the planetary gear mechanism 5 being sleeved on the outer wall of the drive shaft 2; a coupling and decoupling mechanism 6, the coupling and decoupling mechanism 6 being mounted on the drive shaft 2 and connected to the planetary gear mechanism 5, the coupling and decoupling mechanism 6 being located between the planetary gear mechanism 5 and the gearbox 3; and a rear power take-off mechanism 7, the rear power take-off mechanism 7 being connected to the planetary gear mechanism 5; when the coupling and decoupling mechanism 6 is coupled to the planetary gear mechanism 5, the planetary gear mechanism 5 can drive the rear power take-off mechanism 7; when the coupling and decoupling mechanism 6 is decoupled from the planetary gear mechanism 5, the planetary gear mechanism 5 is disconnected from the rear power take-off mechanism 7.

[0043] Specifically, by adding a coupling and decoupling mechanism 6 between the planetary gear mechanism 5 and the gearbox 3, and connecting the planetary gear mechanism 5 to the rear power take-off mechanism 7, it is possible to selectively distribute power to the rear power take-off mechanism 7 in engine 1 drive-only mode, or in pure electric mode without adding an additional motor and motor control, or in hybrid mode, both can provide power output to the rear power take-off mechanism 7. This solves the problems of related technologies, such as the flywheel-end power take-off solution of engine 1, which prevents engine 1 from being shut down according to economic needs in hybrid commercial vehicles; the rear power take-off solution of gearbox 3, which makes the rear power take-off mechanism 7 difficult to arrange or impossible to arrange, or forces an increase in the length of the vehicle body; and the separate electric motor drive of the rear power take-off mechanism 7, which has high costs due to the additional motor and electric motor drive control system.

[0044] In some embodiments, such as Figure 1As shown, the planetary gear mechanism 5 may include: a planet carrier 51, which is sleeved on the outer wall of the transmission shaft 2; an external gear ring is sleeved on the outer wall of the planet carrier 51, and the external gear ring meshes with the input end of the rear power take-off mechanism 7; one end of the planet carrier 51 is connected to the motor assembly 4, and the other end of the planet carrier 51 is connected to the coupling and decoupling mechanism 6. The external gear ring is not... Figure 1 As shown in the figure, the specific structure of its outer gear ring is that the outer wall of the ring has a gear groove.

[0045] Specifically, in pure oil mode, when coupling and decoupling mechanism 6 is selected to couple with planetary carrier 51, the power of engine 1 can be distributed to rear power take-off mechanism 7, which can then perform corresponding power operations. Alternatively, when coupling and decoupling mechanism 6 is selected to decouple from planetary carrier 51, the power of engine 1 is directly and entirely distributed to transmission 3 for vehicle operation. In pure electric mode, the power of motor 4 can be directly transmitted to rear power take-off mechanism 7, which can then perform corresponding power operations. If rear power take-off mechanism 7 does not need to operate, the power transmission can be disconnected through its internal structure. If vehicle operation is required, by controlling coupling and decoupling mechanism 6 to couple with planetary carrier 51, the power of motor 4 can be distributed to transmission 3 for vehicle operation.

[0046] In some embodiments, such as Figure 1 As shown, the rear power take-off mechanism 7 may include: a first gear 71, which meshes with the external gear ring; a rear power take-off shaft 72, one end of which is connected to the first gear 71 (one end of the rear power take-off shaft 72 may be coaxially fixed with the first gear 71), and the other end of which is connected to a rear power take-off output component 73; a coupling and decoupling mechanism 74, which is installed between the rear power take-off shaft 72 and the rear power take-off output component 73; the coupling and decoupling mechanism 74 may drive the rear power take-off output component 73 to couple with the rear power take-off shaft 72, or drive the rear power take-off output component 73 to decouple from the rear power take-off shaft 72.

[0047] The rear power take-off mechanism 7 meshes with the external gear ring through the first gear 71, driving the rear power take-off shaft 72 to rotate. Then, the coupling and decoupling mechanism 74 can determine whether the power of the planetary gear mechanism 5 is transmitted to the rear power take-off output component 73, thereby selecting whether the rear power take-off output component 73 works according to the actual situation.

[0048] Furthermore, a second gear can be fitted onto the left end of the rear power take-off shaft 72. The second gear meshes with the first gear 71 to transmit power from the planetary gear mechanism 5 to the rear power take-off shaft 72.

[0049] In some embodiments, such as Figure 2As shown, a first coupling disk 52 is fitted onto the outer wall of the other end of the planetary carrier 51. The coupling and decoupling mechanism 6 may include: a second coupling disk 61, which is keyed to the drive shaft 2; and a cylinder 62, the extension end of which is connected to the second coupling disk 61. The extension end of the cylinder 62 can drive the second coupling disk 61 to couple or decouple from the first coupling disk 52. Specifically, when the extension end of the cylinder 62 extends to the left, the cylinder 62 can push the second coupling disk 61 to move to the left and couple with the first coupling disk 52 fitted onto the outer wall of the other end of the planetary carrier 51, thus transmitting power from the drive shaft 2 to the planetary carrier 51, thereby transmitting power to the rear power take-off mechanism 7. When the extension end of the cylinder 62 retracts to the right, the cylinder 62 can pull the second coupling disk 61 to move to the right and decouple from the first coupling disk 52 fitted onto the outer wall of the other end of the planetary carrier 51, thus disconnecting the power transmission from the drive shaft 2 to the planetary carrier 51, thereby eliminating power input to the rear power take-off mechanism 7.

[0050] In some embodiments, such as Figure 1 As shown, the planetary gear mechanism 5 may include: a plurality of planetary gear bodies 53, which are sleeved on one end of the planet carrier 51 and are spaced apart along the circumferential direction of the planet carrier 51, and the outer walls of the plurality of planetary gear bodies 53 are meshed with internal gear rings 54; a sun gear 55, which is disposed between the plurality of planetary gear bodies 53 and meshes with the planetary gear bodies 53; and the motor assembly 4 meshes with the sun gear 55.

[0051] When the motor unit 4 is working, it can drive the sun gear 55 to rotate. The sun gear 55 can drive the multiple planetary gear bodies 53 that are spaced apart in the circumferential direction to rotate and perform circumferential motion in the internal gear ring 54, thereby realizing the rotation of the planet carrier 51. Thus, in pure electric mode, the input of the rear power take-off mechanism 7 or the selection of whether the power is input to the gearbox 3 via the coupling and decoupling mechanism 6 can be realized.

[0052] Specifically, the left end of the planet carrier 51 may have three branch ends along its own circumference, and each planet gear body 53 is fitted outside one branch end, and its outer gear ring may be fitted on the outer wall of the left end.

[0053] In some embodiments, such as Figure 1 As shown, the motor assembly 4 may include a plurality of motors 41, which are spaced apart along the circumferential direction of the sun gear 55 and all mesh with the sun gear 55.

[0054] Specifically, the output end sleeve of the motor 41 may be provided with a third gear, which is distributed at intervals along the circumference of the sun gear 55 and meshes with the sun gear 55 to realize the output of power.

[0055] In some embodiments, the power of the multiple motors 41 is different. By having different power levels for the multiple motors 41, power differentiation is achieved, allowing the selection of a motor 41 with appropriate power based on the power required for actual operating conditions, thereby reducing energy consumption and achieving the goal of saving electricity.

[0056] In some embodiments, the power of the plurality of motors 41 may be gradually increased.

[0057] In some embodiments, the number of the plurality of motors 41 is three, with the first and second motors 41 having the same power, and the third motor 41 having a power greater than or less than the power of the first and second motors. Alternatively, the power of the third motor 41 may be equal to the sum of the power of the first and second motors 41.

[0058] In some embodiments, the motor assembly 4 may further include a battery pack 42, which is electrically connected to a plurality of motors 41, and an electronic control driver 43 is installed between the battery pack 42 and the plurality of motors 41. The electronic control driver 43 can control the operating state of the plurality of motors 41.

[0059] In some embodiments, this application provides a vehicle including an EAMT (Electronic Energy Take-Off) structure with integrated rear power take-off (ETO). The EAMT structure may include: an engine 1 connected to a gearbox 3 via a driveshaft 2; an electric motor 4 connected to a planetary gear mechanism 5, the planetary gear mechanism 5 being fitted onto the outer wall of the driveshaft 2; a coupling and decoupling mechanism 6 mounted on the driveshaft 2 and located between the planetary gear mechanism 5 and the gearbox 3; a rear power take-off mechanism 7 connected to the planetary gear mechanism 5; a clutch 8 mounted between the engine 1 and the driveshaft 2; and a rear axle assembly 9 mounted at the output end of the gearbox 3. When the coupling and decoupling mechanism 6 is coupled to the planetary gear mechanism 5, the planetary gear mechanism 5 can drive the rear power take-off mechanism 7; when the coupling and decoupling mechanism 6 is decoupled from the planetary gear mechanism 5, the planetary gear mechanism 5 is disconnected from the rear power take-off mechanism 7.

[0060] Specifically, by adding a coupling and decoupling mechanism 6 between the planetary gear mechanism 5 and the gearbox 3, and connecting the planetary gear mechanism 5 to the rear power take-off mechanism 7, it is possible to selectively distribute power to the rear power take-off mechanism 7 in engine 1 drive-only mode, or in pure electric mode without adding an additional motor and motor control, or in hybrid mode, both can provide power output to the rear power take-off mechanism 7. This solves the problems of related technologies, such as the flywheel-end power take-off solution of engine 1, which prevents engine 1 from being shut down according to economic needs in hybrid commercial vehicles; the rear power take-off solution of gearbox 3, which makes the rear power take-off mechanism 7 difficult to arrange or impossible to arrange, or forces an increase in the length of the vehicle body; and the separate electric motor drive of the rear power take-off mechanism 7, which has high costs due to the additional motor and electric motor drive control system.

[0061] In some embodiments, such as Figure 1 As shown, the planetary gear mechanism 5 may include: a planet carrier 51, which is sleeved on the outer wall of the transmission shaft 2; an external gear ring is sleeved on the outer wall of the planet carrier 51, and the external gear ring meshes with the input end of the rear power take-off mechanism 7; one end of the planet carrier 51 is connected to the motor assembly 4, and the other end of the planet carrier 51 is connected to the coupling and decoupling mechanism 6. The external gear ring is not... Figure 1 As shown in the figure, the specific structure of its outer gear ring is that the outer wall of the ring has a gear groove.

[0062] Specifically, in pure oil mode, when coupling and decoupling mechanism 6 is selected to couple with planetary carrier 51, the power of engine 1 can be distributed to rear power take-off mechanism 7, which can then perform corresponding power operations. Alternatively, when coupling and decoupling mechanism 6 is selected to decouple from planetary carrier 51, the power of engine 1 is directly and entirely distributed to transmission 3 for vehicle operation. In pure electric mode, the power of motor 4 can be directly transmitted to rear power take-off mechanism 7, which can then perform corresponding power operations. If rear power take-off mechanism 7 does not need to operate, the power transmission can be disconnected through its internal structure. If vehicle operation is required, by controlling coupling and decoupling mechanism 6 to couple with planetary carrier 51, the power of motor 4 can be distributed to transmission 3 for vehicle operation.

[0063] In some embodiments, such as Figure 1As shown, the rear power take-off mechanism 7 may include: a first gear 71, which meshes with the external gear ring; a rear power take-off shaft 72, one end of which is connected to the first gear 71 (one end of the rear power take-off shaft 72 may be coaxially fixed with the first gear 71), and the other end of which is connected to a rear power take-off output component 73; a coupling and decoupling mechanism 74, which is installed between the rear power take-off shaft 72 and the rear power take-off output component 73; the coupling and decoupling mechanism 74 may drive the rear power take-off output component 73 to couple with the rear power take-off shaft 72, or drive the rear power take-off output component 73 to decouple from the rear power take-off shaft 72.

[0064] In summary, when the vehicle is in pure electric drive mode:

[0065] 1) When starting, reversing, or when the vehicle's power demand is low (i.e., the engine efficiency is low) or when the power battery's remaining SOC (state of charge) cannot fully store the regenerative braking energy from the road ahead, the system is in pure electric drive mode.

[0066] 2) In pure electric drive mode, coupling and decoupling mechanism 6 engages, clutch 8 (clutch 8 is installed between engine 1 and drive shaft 2) disengages, and engine 1 stops.

[0067] 3) In pure electric drive mode, in addition to driving the whole vehicle, the power output by the motor set 4 can also drive the rear power take-off mechanism 7 through the planetary carrier 51.

[0068] 4) In pure electric drive mode, based on the total demand for the vehicle drive and the principle of optimal power consumption efficiency, the response of each motor in motor group 4 with power difference configuration is allocated to determine the response of the motor to intervene in the drive.

[0069] 5) In pure electric drive mode, clutch 8 disengages and engine 1 stops;

[0070] 6) In pure electric drive mode, the gearbox 3 determines the gear based on factors such as vehicle speed, overall vehicle drive requirements, rear power take-off drive requirements, and component efficiency.

[0071] When the vehicle is in engine-only drive mode:

[0072] 1) When the vehicle's power demand is within the high-efficiency range of engine 1, the system uses engine 1-only drive mode to drive the entire vehicle;

[0073] 2) When the battery is fully charged, the coupling and decoupling mechanism 6 is disengaged, and the electric control driver 43 drives the low-power motor in the motor group 4 to drive the rear power take-off accessory.

[0074] 3) When the battery power is insufficient, the coupling and decoupling mechanism 6 engages, the engine 1 drives the planetary carrier 51, and the planetary carrier 51 then drives the rear power take-off mechanism 7.

[0075] 4) In engine 1 drive-only mode, clutch 8 is engaged, and engine 1 is in the drive chain;

[0076] 5) In engine 1 drive-only mode, transmission 3 determines the gear based on factors such as vehicle speed, overall vehicle drive requirements, rear power take-off drive requirements, and component efficiency.

[0077] 6) In the engine 1 drive mode, determine whether the motor 4 drives the rear power take-off mechanism 7 based on the status of the battery pack 42.

[0078] When the vehicle is in hybrid drive mode:

[0079] 1) When the vehicle's power demand exceeds the engine's maximum power during tasks such as climbing hills and acceleration, or when there is a large amount of regenerative braking energy ahead and the power battery's remaining SOC cannot fully store the regenerative braking energy ahead, the system adopts a hybrid drive mode to drive the vehicle.

[0080] 2) In hybrid mode, the coupling and decoupling mechanism 6 is engaged, the driving force of the motor 4 drives the power take-off mechanism 7 through the planetary carrier 51, and the remaining power drives the whole vehicle together with the engine 1 on the gearbox 3.

[0081] 3) In hybrid drive mode, clutch 8 engages, and engine 1 provides driving force;

[0082] 4) In hybrid drive mode, the driving power of each electric motor 41 and engine 1 is determined according to the principle of optimal efficiency of the entire system;

[0083] 5) In hybrid drive mode, the gearbox 3 determines the gear based on factors such as vehicle speed, overall vehicle drive requirements, rear power take-off mechanism 7 drive requirements, and component efficiency.

[0084] When the vehicle is in regenerative braking mode:

[0085] 1) When the driver presses the brake pedal or performs energy recovery according to the hybrid control strategy, the system enters the regenerative braking mode;

[0086] 2) In the regenerative braking mode, the coupling and decoupling mechanism 6 engages, the gearbox 3 drives the planetary carrier 51 to rotate and drives the rear power take-off mechanism 7, and the remaining driving force drives the electric motor 41 to generate electricity through braking and stores the electrical energy in the battery pack 42.

[0087] 3) In regenerative braking mode, clutch 8 is disengaged and engine 1 is in idle or stopped state.

[0088] In regenerative braking mode, the gearbox 3 determines the gear based on the principle of minimizing shift interruptions and maximizing regenerative braking of the electric motor 41.

[0089] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0090] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0091] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An integrated take-off accessory drive (EAMT) architecture, characterized by, It includes: Engine (1), the engine (1) is connected with gearbox (3) through transmission shaft (2); Motor group (4), the motor group (4) is connected with planetary gear mechanism (5), the planetary gear mechanism (5) is set on the outer wall of transmission shaft (2); Coupling and decoupling mechanism one (6), the coupling and decoupling mechanism one (6) is installed on the transmission shaft (2), and the coupling and decoupling mechanism one (6) is located between the planetary gear mechanism (5) and the gearbox (3); The rear power take-off mechanism (7) is connected with the planetary gear mechanism (5); The planetary gear mechanism (5) includes: Planet carrier (51), the planet carrier (51) is set on the outer wall of transmission shaft (2), the outer wall of planet carrier (51) is set with outer ring gear, and the outer ring gear is engaged with the input end of rear power take-off mechanism (7); One end of the planet carrier (51) is connected with the motor group (4), and the other end of the planet carrier (51) is connected with the coupling and decoupling mechanism one (6); The outer wall of the other end of the planet carrier (51) is set with the first coupling disc (52); The coupling and decoupling mechanism one (6) includes: Second coupling disc (61), the second coupling disc (61) is connected with the transmission shaft (2) by key; Cylinder (62), the telescopic end of the cylinder (62) is connected with the second coupling disc (61); The telescopic end of the cylinder (62) can push the second coupling disc (61) to be coupled or decoupled with the first coupling disc (52); The planetary gear mechanism (5) includes: A plurality of planet gear bodies (53), a plurality of planet gear bodies (53) are set on one end of the planet carrier (51), a plurality of planet gear bodies (53) are distributed along the circumferential direction of the planet carrier (51), and the outer wall of a plurality of planet gear bodies (53) is engaged with the inner ring gear (54); Sun gear (55), the sun gear (55) is arranged between a plurality of planet gear bodies (53) and engaged with the planet gear bodies (53); The motor group (4) is engaged with the sun gear (55).

2. The integrated rear power take-off accessory drive EAMT structure of claim 1, wherein The rear power take-off mechanism (7) includes: First gear (71), the first gear (71) is engaged with the outer ring gear; Rear power take-off shaft (72), one end of the rear power take-off shaft (72) is connected with the first gear (71), and the other end of the rear power take-off shaft (72) is connected with rear power take-off output (73); Coupling and decoupling mechanism two (74), the coupling and decoupling mechanism two (74) is installed between the rear power take-off shaft (72) and the rear power take-off output (73); The coupling and decoupling mechanism two (74) can drive the rear power take-off output (73) to be coupled with the rear power take-off shaft (72), or drive the rear power take-off output (73) to be decoupled with the rear power take-off shaft (72).

3. The integrated rear power take-off accessory drive EAMT structure of claim 1, wherein The motor group (4) includes: A plurality of electric motors (41) are arranged along the circumferential direction of the sun gear (55) and are engaged with the sun gear (55).

4. The integrated take-off accessory driven EAMT structure of claim 3, wherein, The power of the plurality of electric motors (41) is not the same.

5. The integrated take-off accessory driven EAMT structure of claim 3, wherein, The number of the plurality of electric motors (41) is three, the power of the first and second electric motors (41) is the same, and the power of the third electric motor (41) is greater than or less than the power of the first and second electric motors.

6. The integrated take-off accessory driven EAMT structure of claim 3, wherein, The electric motor group (4) further comprises: A battery group (42) is electrically connected with the plurality of electric motors (41), and an electric control driver (43) is installed between the battery group (42) and the plurality of electric motors (41).

7. A vehicle characterized by comprising: It comprises the integrated take-off accessory driven EAMT structure of any one of claims 1-6.

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