Hybrid powertrain and vehicle

Abstract

The application discloses a hybrid power system and a vehicle, and belongs to the field of new energy vehicles. The disclosed vehicle comprises a hybrid power system, which comprises: a motor assembly comprising a generator and a motor, the generator comprising a first rotor, and the motor comprising a second rotor, the second rotor being sleeved outside the first rotor and being independently rotatable with the first rotor; an engine, a planetary gear mechanism and a transmission mechanism, the engine being in transmission connection with a planet carrier of the planetary gear mechanism, a sun gear of the planetary gear mechanism being in transmission connection with the first rotor, a ring gear of the planetary gear mechanism being in transmission connection with the transmission mechanism, and the transmission mechanism being used for being in transmission connection with a wheel assembly of the vehicle; and a first transmission member, which is located between the motor assembly and the planetary gear mechanism, and the second rotor being in transmission connection with the transmission mechanism through the first transmission member. The layout of the first rotor and the second rotor of the hybrid power system provided in the embodiment of the application is relatively compact, so that the compactness of the hybrid power system is better.

Description

Technical Field

[0001] This application belongs to the field of new energy vehicle technology, specifically relating to a hybrid power system and vehicle. Background Technology

[0002] The hybrid power system is a core component of a vehicle, responsible for providing power to the vehicle's wheel assemblies, and the rationality of its layout directly affects the overall vehicle size.

[0003] Hybrid systems typically include components such as electric motors, engines, and generators. During vehicle operation, hybrid systems optimize driving performance by coordinating the working states of each component.

[0004] However, the poor layout of the electric motor and generator in traditional hybrid systems results in poor compactness of the hybrid system, which in turn leads to a larger vehicle size. Utility Model Content

[0005] The purpose of this application is to provide a hybrid power system and vehicle that can solve the problem of poor compactness of hybrid power systems in related technologies.

[0006] In a first aspect, embodiments of this application provide a hybrid power system, including: An electric motor assembly includes a generator and an electric motor, wherein the generator includes a first rotor and the electric motor includes a second rotor, the second rotor being sleeved outside the first rotor and the two being rotatable independently; An engine, a planetary gear mechanism, and a transmission mechanism are provided. The engine is driven to the planet carrier of the planetary gear mechanism, the sun gear of the planetary gear mechanism is driven to the first rotor, the ring gear of the planetary gear mechanism is driven to the transmission mechanism, and the transmission mechanism is used to drive to the wheel assembly of the vehicle. A first transmission component is located between the motor assembly and the planetary gear mechanism, and the second rotor is connected to the transmission mechanism via the first transmission component.

[0007] In this embodiment, the second rotor of the electric motor is sleeved outside the first rotor of the generator. This makes the layout of the first and second rotors more compact, thereby improving the compactness of the hybrid power system.

[0008] Furthermore, the first transmission component is located between the motor assembly and the planetary gear mechanism. This arrangement reduces the space occupied outside the space between the motor assembly and the planetary gear mechanism, which also makes the hybrid power system more compact.

[0009] Optionally, a stator mechanism is provided between the first rotor and the second rotor. This stator mechanism cooperates with both the first and second rotors, forming the stator of the generator and the stator of the motor. This arrangement reduces the space occupied by the second rotor, thereby further improving the compactness of the hybrid power system. Furthermore, in this configuration, the generator stator and the motor stator are centrally located in the same space, facilitating unified maintenance.

[0010] Optionally, the stator mechanism includes a stator core, a first winding, and a second winding. Both the first winding and the second winding are located on the stator core. The stator core and the first winding together form the stator of the generator, and the stator core and the second winding together form the stator of the electric motor. In this configuration, the generator stator and the electric motor stator share the same stator core, which reduces the number of components involved in the stator mechanism, thus simplifying the assembly and manufacturing process. Furthermore, the shared stator core configuration helps reduce material usage, thereby contributing to vehicle lightweighting and improved energy efficiency, and ultimately reducing overall vehicle costs.

[0011] Optionally, the first transmission member is fixedly disposed relative to the second rotor to rotate with the second rotor. The transmission mechanism includes a coaxially disposed transmission shaft and a second transmission member. The transmission shaft is drivenly connected to the gear ring. The second transmission member is fixedly disposed on the transmission shaft and drivenly connected to the first transmission member. The second transmission member and the first transmission member are arranged sequentially along a first direction, which is perpendicular to the direction of the rotation axis of the first transmission member. This layout reduces the space occupied in the direction of the rotation axis of the first transmission member, helping to reduce the size of the hybrid power system in the direction of the rotation axis of the first transmission member.

[0012] Optionally, the transmission mechanism further includes a third transmission component, which is coaxially arranged with the transmission shaft and fixedly mounted on the transmission shaft. The third transmission component is connected to the gear ring, and the rotation axis of the gear ring is the same as the rotation axis of the first transmission component. The third transmission component and the gear ring are arranged sequentially along the first direction. This arrangement also reduces the space occupied in the direction of the rotation axis of the first transmission component, thereby making the hybrid power system smaller in the direction of the rotation axis of the first transmission component.

[0013] Optionally, the transmission mechanism further includes a fourth transmission member, which is coaxially arranged with and fixedly mounted on the transmission shaft. The fourth transmission member is located between the second and third transmission members and is used for transmission connection with the wheel assembly. With this arrangement, the fourth transmission member primarily occupies the space between the second and third transmission members, improving the utilization rate of that space and making the overall hybrid power system more compact.

[0014] Optionally, the rotation axis of the first transmission member is parallel to the rotation axis of the transmission shaft, and both are parallel to the rotation axis of the wheel of the wheel assembly. This layout is more reasonable, helps to simplify the structure of the hybrid power system, and helps to reduce energy loss.

[0015] Optionally, the first, second, third, and fourth transmission components are all gears, with the first and second transmission components meshing with each other, the third transmission component meshing with the outer wall of the gear ring, and the fourth transmission component meshing with the wheel assembly. With this configuration, the transmission between the first and second transmission components, the transmission between the third transmission component and the gear ring, and the transmission between the fourth transmission component and the wheel assembly all require virtually no additional components, thus simplifying the structure of the hybrid power system.

[0016] Optionally, the first rotor is connected to the sun gear via a connecting shaft. The hybrid power system also includes a brake located between the first transmission member and the planetary gear mechanism, which can selectively lock or unlock the connecting shaft. When the connecting shaft is in the locked or unlocked state, different power transmissions can be achieved, thereby meeting different power distribution requirements. Furthermore, this configuration directly utilizes the space between the first transmission member and the planetary gear mechanism to house the brake, reducing the occupation of other spaces and further improving the compactness of the hybrid power system.

[0017] Secondly, this application also provides a vehicle, including a wheel assembly and the aforementioned hybrid power system, wherein the transmission mechanism of the hybrid power system is tractively connected to the wheel assembly. This vehicle includes the aforementioned hybrid power system and has the same beneficial effects as the aforementioned hybrid power system, which will not be repeated here. Attached Figure Description

[0018] Figure 1 This is a partial structural schematic diagram of the vehicle disclosed in the embodiments of this application; Figure 2 This is a schematic diagram of the stator core structure disclosed in the embodiments of this application; Figure 3 This is a schematic diagram of the first operating mode of the hybrid power system disclosed in the embodiments of this application; Figure 4 This is a schematic diagram of the second operating mode of the hybrid power system disclosed in the embodiments of this application; Figure 5 This is a schematic diagram of the third operating mode of the hybrid power system disclosed in the embodiments of this application; Figure 6 This is a schematic diagram of the fourth operating mode of the hybrid power system disclosed in the embodiments of this application.

[0019] Explanation of reference numerals in the attached figures: 100-Motor assembly, 110-Generator, 111-First rotor, 1111-Connecting shaft, 120-Motor, 121-Second rotor, 1211-First transmission component, 130-Stator mechanism, 131-Stator core, 1311-First mounting slot, 1312-Second mounting slot; 200-engine; 300 - Planetary gear mechanism, 310 - Planet carrier, 320 - Sun gear, 330 - Ring gear; 400 - Transmission mechanism, 410 - Transmission shaft, 420 - Second transmission component, 430 - Third transmission component, 440 - Fourth transmission component; 500 - Wheel assembly, 510 - Wheel, 520 - Differential, 521 - Fifth transmission component, 530 - Mounting shaft; 600-Brake. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] The hybrid power system and vehicle provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0023] Please refer to Figures 1 to 6 As shown in the embodiment of this application, a hybrid power system is provided, including: a motor assembly 100, an engine 200, a planetary gear mechanism 300, a transmission mechanism 400, and a first transmission component 1211.

[0024] Specifically, the motor assembly 100 includes a generator 110 and a motor 120. The generator 110 includes a first rotor 111, and the motor 120 includes a second rotor 121. The second rotor 121 is sleeved outside the first rotor 111, and the two can rotate independently. In other words, the rotation of the first rotor 111 and the second rotor 121 does not interfere with each other. Optionally, the first rotor 111 and the second rotor 121 are coaxially arranged, and their rotation axes are the same.

[0025] The engine 200 is driven by the planet carrier 310 of the planetary gear mechanism 300, the sun gear 320 of the planetary gear mechanism 300 is driven by the first rotor 111, the gear ring 330 of the planetary gear mechanism 300 is driven by the transmission mechanism 400, and the transmission mechanism 400 is driven by the wheel assembly 500 of the vehicle.

[0026] Engine 200 is, for example, an internal combustion engine. The output shaft of engine 200 is, for example, coaxially arranged with planetary carrier 310 and fixedly connected to achieve the transmission connection between the two.

[0027] Any one of the planet carrier 310, sun gear 320 and ring gear 330 in the planetary gear mechanism 300 can rotate. In actual operation, the operating state of the planet carrier 310, sun gear 320 and ring gear 330 depends on the actual situation, which will not be described in detail here.

[0028] The first transmission component 1211 is located between the motor assembly 100 and the planetary gear mechanism 300, and the second rotor 121 is connected to the transmission mechanism 400 through the first transmission component 1211.

[0029] In actual use, the transmission mechanism 400 acts as an intermediate transmission medium, transmitting the power output from at least one of the second rotor 121 and the gear ring 330 to the vehicle's wheel assembly 500, thereby driving the vehicle.

[0030] In this embodiment, the second rotor 121 of the electric motor 120 is sleeved outside the first rotor 111 of the generator 110. In this way, the layout of the first rotor 111 and the second rotor 121 is more compact, which makes the hybrid power system more compact and helps to reduce the size of the hybrid power system.

[0031] Furthermore, the first transmission component 1211 is located between the motor assembly 100 and the planetary gear mechanism 300. This arrangement reduces the space occupied outside the space between the motor assembly 100 and the planetary gear mechanism 300, which also makes the hybrid power system more compact.

[0032] In another embodiment, reference Figure 6 As shown, a stator mechanism 130 is provided between the first rotor 111 and the second rotor 121. The stator mechanism 130 cooperates with both the first rotor 111 and the second rotor 121. The stator mechanism 130 is constructed to form the stator of the generator 110 and the stator of the motor 120. That is, the stator of the generator 110 and the stator of the motor 120 are both formed by the stator mechanism 130.

[0033] In this embodiment, the stator mechanism 130 is located between the first rotor 111 and the second rotor 121. The arrangement of the stator mechanism 130 mainly occupies the space within the second rotor 121, thus reducing the space occupied outside the second rotor 121 and further improving the compactness of the hybrid power system. Furthermore, in this configuration, the stator of the generator 110 and the stator of the motor 120 are centrally arranged in the same space, facilitating unified maintenance.

[0034] In other embodiments, a portion of the stator mechanism 130 may also be located outside the second rotor 121. Specifically, the stator mechanism 130 may include, for example, a first sub-part and a second sub-part, the first sub-part being located between the first rotor 111 and the second rotor 121 and configured to form the stator of the generator 110, and the second sub-part being coaxially sleeved outside the second rotor 121 and configured to form the stator of the motor 120.

[0035] In another embodiment, reference Figure 2 As shown, the stator mechanism 130 includes a stator core 131, a first winding, and a second winding. Both the first winding and the second winding are located on the stator core 131. The stator core 131 and the first winding together form the stator of the generator 110, and the stator core 131 and the second winding together form the stator of the motor 120.

[0036] In this embodiment, the stator of the generator 110 and the stator of the motor 120 share the same stator core 131. This reduces the number of components involved in the stator mechanism 130, thereby simplifying the assembly and manufacturing process of the stator mechanism 130. Furthermore, the shared stator core 131 helps reduce material usage, which is beneficial for vehicle weight reduction and energy efficiency improvement, and also helps reduce overall vehicle cost.

[0037] Optionally, refer to Figure 2As shown, the inner wall of the stator core 131 is provided with a first mounting groove 1311 for mounting a first winding. There are at least two first mounting grooves 1311, and they are arranged sequentially along the circumference of the stator core 131. The outer wall of the stator core 131 is provided with a second mounting groove 1312 for mounting a second winding. There are at least two second mounting grooves 1312, and they are arranged sequentially along the circumference of the stator core 131.

[0038] Optionally, the stator core 131 is formed by one-time stamping.

[0039] In other embodiments, the stator mechanism 130 may also include at least two independent core structures, such as a first core structure and a second core structure, wherein the first core structure and the first winding together form the stator of the generator 110, and the second core structure and the second winding together form the stator of the motor 120.

[0040] In another embodiment, the first transmission member 1211 is fixedly disposed relative to the second rotor 121 so as to rotate with the second rotor 121. Optionally, the rotation axis of the second rotor 121 is, for example, the axis of the second rotor 121, and the first transmission member 1211 is coaxially disposed with the second rotor 121, and their rotation axes are the same.

[0041] The transmission mechanism 400 includes a coaxially arranged transmission shaft 410 and a second transmission member 420. The transmission shaft 410 is connected to the gear ring 330. The second transmission member 420 is fixedly mounted on the transmission shaft 410 and is connected to the first transmission member 1211. The second transmission member 420 and the first transmission member 1211 are arranged sequentially along a first direction, which is perpendicular to the direction of the rotation axis of the first transmission member 1211. That is, the first transmission member 1211 and the second transmission member 420 are arranged sequentially along a direction perpendicular to the rotation axis of the first transmission member 1211. Specifically, the first direction is, for example, Figure 1 The direction indicated by arrow A in the diagram.

[0042] In this embodiment, the second transmission member 420 and the first transmission member 1211 are arranged sequentially along a direction perpendicular to the rotation axis of the first transmission member 1211. This arrangement reduces the space occupied in the direction of the rotation axis of the first transmission member 1211, which helps to reduce the size of the hybrid power system in the direction of the rotation axis of the first transmission member 1211. Furthermore, this arrangement is suitable for scenarios where the space of the hybrid power system in the direction of the rotation axis of the first transmission member 1211 is limited.

[0043] In other embodiments, the first transmission member 1211 and the second transmission member 420 may also be arranged sequentially along a second direction, which is the same as the direction of the rotation axis of the first transmission member 1211, or inclined relative to the direction of the rotation axis of the first transmission member 1211.

[0044] In another embodiment, reference Figure 1 As shown, the transmission mechanism 400 further includes a third transmission member 430, which is coaxially arranged with and fixed to the transmission shaft 410. The third transmission member 430 is connected to the gear ring 330, and the rotation axis of the gear ring 330 is the same as the rotation axis of the first transmission member 1211. The third transmission member 430 and the gear ring 330 are arranged sequentially along a first direction. In other words, the arrangement direction of the third transmission member 430 and the gear ring 330 is perpendicular to the direction of the rotation axis of the gear ring 330, and this direction is the same as the arrangement direction of the first transmission member 1211 and the second transmission member 420.

[0045] In this embodiment, the third transmission member 430 and the gear ring 330 are arranged sequentially along the first direction. This arrangement also reduces the space occupied in the direction of the rotation axis of the first transmission member 1211, thereby making the hybrid power system smaller in the direction of the rotation axis of the first transmission member 1211.

[0046] In other embodiments, the third transmission member 430 and the gear ring 330 can also be arranged sequentially along the second direction mentioned above.

[0047] In another embodiment, reference Figure 1 As shown, the transmission mechanism 400 also includes a fourth transmission member 440, which is coaxially arranged with the transmission shaft 410 and fixedly disposed on the transmission shaft 410. The fourth transmission member 440 is located between the second transmission member 420 and the third transmission member 430 and is used for transmission connection with the wheel assembly 500.

[0048] In this embodiment, the fourth transmission member 440 is located between the second transmission member 420 and the third transmission member 430. That is, the fourth transmission member 440 is arranged using the empty space between the second transmission member 420 and the third transmission member 430, which improves the space utilization and makes the overall hybrid power system more compact.

[0049] In other embodiments, the fourth transmission member 440 may also be located in a space other than the space between the second transmission member 420 and the third transmission member 430. Specifically, the fourth transmission member 440 is located on the side of the second transmission member 420 away from the third transmission member 430, or the third transmission member 430 is located on the side of the second transmission member 420 away from the second transmission member 420.

[0050] In another embodiment, the rotation axis of the first transmission member 1211 is parallel to the rotation axis of the transmission shaft 410, and both are parallel to the rotation axis of the wheel assembly 500.

[0051] In this embodiment, the rotation axis of the first transmission member 1211 is parallel to the rotation axis of the transmission shaft 410, while the second transmission member 420 is coaxially arranged with and fixedly connected to the transmission shaft 410. This means that the rotation axis of the first transmission member 1211 is parallel to the rotation axis of the second transmission member 420. This parallel layout eliminates the need for additional components to reverse the power of the first transmission member 1211, thus simplifying the structure of the hybrid power system. Furthermore, this layout helps to shorten the power transmission path between the first transmission member 1211 and the second transmission member 420, thereby reducing energy loss.

[0052] Furthermore, the fourth transmission member 440 is coaxially arranged with the transmission shaft 410 and fixedly mounted on the transmission shaft 410. That is, the fourth transmission member 440 rotates with the transmission shaft 410 around the rotation axis of the transmission shaft 410. In addition, the fourth transmission member 440 is used for transmission connection with the wheel assembly 500. The rotation axis of the transmission shaft 410 is parallel to the rotation axis of the wheel assembly 500. This means that the rotation axis of the fourth transmission member 440 is parallel to the rotation axis of the wheel assembly 500. In this way, there is no need to rely on other components to realize the reversal of the power of the fourth transmission member 440, thereby simplifying the structure of the hybrid power system. Moreover, this arrangement helps to shorten the power transmission path between the fourth transmission member 440 and the wheel assembly 500, thereby reducing energy loss.

[0053] In other embodiments, the rotation axis of the first transmission member 1211 may intersect with the rotation axis of the transmission shaft 410. Similarly, the rotation axis of the transmission shaft 410 may intersect with the rotation axis of the wheel assembly 500.

[0054] In another embodiment, the first transmission member 1211, the second transmission member 420, the third transmission member 430, and the fourth transmission member 440 are all gears. The first transmission member 1211 and the second transmission member 420 mesh with each other, the third transmission member 430 meshes with the outer wall of the gear ring 330, and the fourth transmission member 440 meshes with the wheel assembly 500. With this configuration, the transmission between the first transmission member 1211 and the second transmission member 420, the transmission between the third transmission member 430 and the gear ring 330, and the transmission between the fourth transmission member 440 and the wheel assembly 500 all require virtually no additional components, thus simplifying the structure of the hybrid power system.

[0055] Optionally, refer to Figure 1As shown, the wheel assembly 500 includes a differential 520, which includes a fifth transmission member 521. The fifth transmission member 521 is, for example, a gear. The rotation axis of the fifth transmission member 521 is the same as the rotation axis of the wheel 510 of the wheel assembly 500. The axis of the fifth transmission member 521 is the rotation axis of the wheel assembly 500 mentioned above. The fourth transmission member 440 meshes with the fifth transmission member 521. More specifically, the wheel 510 is mounted on a mounting shaft 530, and the axis of the mounting shaft 530 is the rotation axis of the wheel 510.

[0056] In other embodiments, the first transmission member 1211 and the second transmission member 420 can also be connected via a first gear transmission mechanism. Similarly, the third transmission member 430 and the gear ring 330 can be connected via a second gear transmission mechanism, and the fourth transmission member 440 and the wheel assembly 500 can be connected via a third gear transmission mechanism. The specific structures of the first, second, and third gear transmission mechanisms are not limited in this embodiment; they can be designed according to actual needs.

[0057] In another embodiment, reference Figures 4 to 6 As shown, the first rotor 111 is connected to the sun gear 320 via the connecting shaft 1111. The hybrid power system also includes a brake 600, which is located between the first transmission member 1211 and the planetary gear mechanism 300, and can selectively lock or unlock the connecting shaft 1111.

[0058] In this embodiment, the brake 600 can selectively lock or unlock the connecting shaft 1111. When the connecting shaft 1111 is in the locked state or the unlocked state, different power transmissions can be achieved respectively, thereby meeting different power transmission requirements.

[0059] Furthermore, the brake 600 is located between the first transmission member 1211 and the planetary gear mechanism 300. In this arrangement, the spare space between the first transmission member 1211 and the planetary gear mechanism 300 is directly utilized to arrange the brake 600, thereby reducing the occupation of other spaces and further improving the compactness of the hybrid power system.

[0060] Optionally, the connecting shaft 1111 is coaxially arranged with the sun gear 320 and the first rotor 111, and the connecting shaft 1111 is fixedly connected with the sun gear 320 and the first rotor 111.

[0061] In other embodiments, the hybrid power system may also exclude the brake 600, or the hybrid power system may include the brake 600, but the brake 600 is located in a space other than the space between the first transmission member 1211 and the planetary gear mechanism 300, specifically, for example, on the side of the first transmission member 1211 opposite to the planetary gear mechanism 300.

[0062] In one optional embodiment, the output shaft of the engine 200 is coaxially arranged with the connecting shaft 1111 mentioned above. The axis of the connecting shaft 1111 is defined as the first axis, and the output shaft of the engine 200, the connecting shaft 1111, the first rotor 111, the sun gear 320, the planet carrier 310, and the ring gear 330 all rotate around the first axis. The axis of the drive shaft 410 mentioned above is defined as the second axis, and the drive shaft 410, the second drive member 420, the third drive member 430, and the fourth drive member 440 all rotate around the second axis. The rotation axis of the wheel assembly 500 is defined as the third axis. The first axis, the second axis, and the third axis are parallel to each other, and the second axis is located between the first axis and the third axis, and in a direction perpendicular to the first axis, such as the first direction mentioned above. The hybrid power system, for example, only includes the first axis, the second axis, and the third axis, that is, the hybrid power system is a three-axis architecture, thereby simplifying the structure of the hybrid power system, thereby reducing the cost and weight of the hybrid power system.

[0063] Specifically, the directions of the first axis, the second axis, and the third axis are, for example, all... Figure 1 The direction indicated by arrow B in the diagram.

[0064] refer to Figures 3 to 6 As shown, the hybrid power system provided in this application embodiment includes, for example, the following operating modes: The first operating mode is idle power generation. (See reference...) Figure 3 As shown, the wheel assembly 500 does not rotate, the engine 200 drives the sun gear 320 of the planetary gear mechanism 300 to rotate, and the sun gear 320 drives the first rotor 111 of the generator 110 to rotate, thereby realizing the power generation of the generator 110. The second operating mode is pure electric mode, see reference. Figure 4 As shown, when the motor 120 is working, the second rotor 121 of the motor 120 rotates. While the second rotor 121 is rotating, it drives the wheel assembly 500 to rotate in sequence through the first transmission member 1211, the second transmission member 420, the transmission shaft 410 and the fourth transmission member 440. In this working mode, the power for the rotation of the wheel assembly 500 comes entirely from the motor 120. The third working mode is direct drive mode, see reference. Figure 5 As shown, when the engine 200 is working, the engine 200 drives the planet carrier 310 to rotate. While the planet carrier 310 is rotating, it drives the wheel assembly 500 to rotate in sequence through the gear ring 330, the third transmission component 430, the transmission shaft 410 and the fourth transmission component 440. In this working mode, the power for the rotation of the wheel assembly 500 comes entirely from the engine 200. The fourth working mode is the hybrid mode, see reference. Figure 6As shown, both the engine 200 and the electric motor 120 are working. The operating conditions of the engine 200 and the electric motor 120 together determine the operating conditions of the wheel assembly 500. In this mode, the engine 200 is used to generate driving force, and the electric motor 120 can generate either resistance or driving force. Whether the electric motor 120 generates driving force or resistance depends on the actual operating requirements of the wheel assembly 500. In this working mode, part of the driving force generated by the engine 200 is transmitted to the first rotor 111 through the sun gear 320, thereby driving the generator 110 to generate electricity.

[0065] It should be noted that when the hybrid system is in the first, second, or fourth operating mode, the brake 600 unlocks the connecting shaft 1111, allowing it to rotate freely. When the hybrid system is in the third operating mode, the brake 600 locks the connecting shaft 1111, preventing it from rotating. Additionally, Figures 3 to 6 The arrows in the diagram all indicate the power transmission path. In addition, both the generator 110 and the motor 120 are electric motors, and their structures are essentially the same. During vehicle operation, the motor 120 can switch between electric motor mode and generator mode according to the actual working conditions, that is, it can also generate electricity using the motor 120.

[0066] Specifically, the generator 110 and the motor 120 are both electrically connected to the vehicle's battery, for example, to achieve energy recovery.

[0067] This application also provides a vehicle, including a wheel assembly 500 and the aforementioned hybrid power system, wherein the transmission mechanism 400 of the hybrid power system is hygienically connected to the wheel assembly 500. The vehicle includes the aforementioned hybrid power system, which has good compactness, thus resulting in a better overall vehicle compactness.

[0068] In one specific implementation, the motor assembly 100, the transmission mechanism 400, and the wheel assembly 500 are arranged sequentially along the first direction mentioned above.

[0069] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A hybrid power system, characterized in that, include: The motor assembly (100) includes a generator (110) and a motor (120), wherein the generator (110) includes a first rotor (111) and the motor (120) includes a second rotor (121), the second rotor (121) being sleeved outside the first rotor (111) and the two being able to rotate independently; An engine (200), a planetary gear mechanism (300), and a transmission mechanism (400) are provided. The engine (200) is driven to the planet carrier (310) of the planetary gear mechanism (300), the sun gear (320) of the planetary gear mechanism (300) is driven to the first rotor (111), the ring gear (330) of the planetary gear mechanism (300) is driven to the transmission mechanism (400), and the transmission mechanism (400) is used to drive to the wheel assembly (500) of the vehicle. The first transmission component (1211) is located between the motor assembly (100) and the planetary gear mechanism (300), and the second rotor (121) is connected to the transmission mechanism (400) through the first transmission component (1211).

2. The hybrid power system according to claim 1, characterized in that, A stator mechanism (130) is provided between the first rotor (111) and the second rotor (121). The stator mechanism (130) cooperates with both the first rotor (111) and the second rotor (121). The stator mechanism (130) is constructed to form the stator of the generator (110) and the stator of the motor (120).

3. The hybrid power system according to claim 2, characterized in that, The stator mechanism (130) includes a stator core (131), a first winding, and a second winding. The first winding and the second winding are both located on the stator core (131). The stator core (131) and the first winding together form the stator of the generator (110). The stator core (131) and the second winding together form the stator of the motor (120).

4. The hybrid power system according to claim 1, characterized in that, The first transmission member (1211) is fixedly disposed relative to the second rotor (121) so as to rotate with the second rotor (121). The transmission mechanism (400) includes a transmission shaft (410) and a second transmission member (420) coaxially disposed. The transmission shaft (410) is connected to the gear ring (330) in a transmission connection. The second transmission member (420) is fixedly disposed on the transmission shaft (410) and is connected to the first transmission member (1211) in a transmission connection. The second transmission member (420) and the first transmission member (1211) are arranged sequentially along a first direction. The first direction is perpendicular to the direction of the rotation axis of the first transmission member (1211).

5. The hybrid power system according to claim 4, characterized in that, The transmission mechanism (400) further includes a third transmission component (430), which is coaxially arranged with the transmission shaft (410) and fixedly mounted on the transmission shaft (410). The third transmission component (430) is connected to the gear ring (330) in a transmission connection. The rotation axis of the gear ring (330) is the same as the rotation axis of the first transmission component (1211). The third transmission component (430) and the gear ring (330) are arranged sequentially along the first direction.

6. The hybrid power system according to claim 5, characterized in that, The transmission mechanism (400) further includes a fourth transmission member (440), which is coaxially arranged with the transmission shaft (410) and fixedly disposed on the transmission shaft (410). The fourth transmission member (440) is located between the second transmission member (420) and the third transmission member (430) and is used for transmission connection with the wheel assembly (500).

7. The hybrid power system according to claim 6, characterized in that, The rotation axis of the first transmission member (1211) is parallel to the rotation axis of the transmission shaft (410), and both are parallel to the rotation axis of the wheel assembly (500).

8. The hybrid power system according to claim 6, characterized in that, The first transmission member (1211), the second transmission member (420), the third transmission member (430) and the fourth transmission member (440) are all gears. The first transmission member (1211) and the second transmission member (420) mesh with each other. The third transmission member (430) meshes with the outer wall of the gear ring (330). The fourth transmission member (440) is used to mesh with the wheel assembly (500).

9. The hybrid power system according to claim 1, characterized in that, The first rotor (111) is connected to the sun gear (320) via a connecting shaft (1111). The hybrid power system also includes a brake (600) located between the first transmission member (1211) and the planetary gear mechanism (300), which can selectively lock or unlock the connecting shaft (1111).

10. A vehicle, characterized in that, The system includes a wheel assembly (500) and a hybrid power system according to any one of claims 1-9, wherein the transmission mechanism (400) of the hybrid power system is drive-connected to the wheel assembly (500).

Images