Magnetic transmission system and working method thereof

Abstract

The invention discloses a magnetic transmission system and a working method thereof.The magnetic transmission system comprises a power input shaft, a magnetic induction disc, a power transmission sleeve, a rotor assembly, a stator assembly, a power battery and a power output shaft, the power input shaft is rotationally connected with the magnetic induction disc, and a first power clutch is arranged between the magnetic induction disc and the power input shaft; a permanent magnet is arranged on the magnetic induction disc; a winding disc is arranged on the power transmission sleeve, a second power clutch is arranged between the winding disc and the magnetic induction disc, and a winding is arranged on the winding disc; the power output shaft is in running fit with the power transmission sleeve, and a third power clutch is arranged between the power output shaft and the power transmission sleeve. Various functions of the hybrid electric vehicle can be achieved, the switching process of various working modes of the hybrid electric vehicle is completed, the working modes of the hybrid electric vehicle are switched smoothly, the real-time control effect is good, and the hybrid electric vehicle has the advantages of being simple in structure, convenient to maintain, good in controllability, high in working efficiency, long in service life and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicles, and in particular relates to a magnetic transmission system and a working method thereof. Background Art

[0002] When a traditional internal combustion engine drives the wheels to rotate, its efficient fuel speed range is small. In order to solve the above problems, a hybrid engine can solve the above problems, making the efficient speed range of the internal combustion engine larger and the fuel economy of the internal combustion engine greater.

[0003] In plug-in hybrid or extended-range hybrid, the combination of oil and electricity can bring advantages that cannot be achieved by a single internal combustion engine, such as ultra-high torque burst and ultra-low fuel consumption control. However, more and more complex mechanisms are required to achieve the switch between pure electric, pure oil, and oil-electric hybrid, and the working efficiency is low. Therefore, a magnetic transmission system that can solve the above technical problems is currently needed. Summary of the invention

[0004] The object of the present invention is to provide a magnetic transmission system and a working method thereof, so as to solve the above-mentioned problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, on the one hand, the present invention adopts the following technical scheme: a magnetic transmission system, including a power input shaft, a magnetic induction disk, a power transmission sleeve, a rotor assembly, a stator assembly, a power battery and a power output shaft, one end of the power input shaft is connected to a power input device, and the other end of the power input shaft is rotatably connected to the magnetic induction disk, a first power clutch is arranged between the magnetic induction disk and the power input shaft, and a plurality of permanent magnets distributed in an annular shape are arranged on the magnetic induction disk; a winding disk is arranged on the power transmission sleeve, a second power clutch is arranged between the winding disk and the magnetic induction disk, and a plurality of windings distributed in an annular shape are arranged on the winding disk, the windings and the permanent magnets cooperate with each other, and the windings are electrically connected to the power battery; the power output shaft is rotatably matched with the power transmission sleeve, and a third power clutch is arranged between the power output shaft and the power transmission sleeve; the rotor assembly is installed on the power output shaft, the stator assembly and the rotor assembly match each other, and the stator assembly is electrically connected to the power battery.

[0006] As an optional implementation of the above technical solution, the power battery includes a battery, a motor control unit, an output control unit and a rectifier unit, the battery, the motor control unit and the stator assembly are electrically connected in sequence, and the winding, the rectifier unit, the motor control unit and the battery are electrically connected in sequence.

[0007] As an optional implementation of the above technical solution, a slip ring is provided on the power transmission sleeve, the slip ring is electrically connected to the winding, the slip ring is equipped with a carbon brush, and the carbon brush is electrically connected to the rectifier unit.

[0008] As an optional implementation of the above technical solution, it also includes a transmission housing, and the power input shaft, power transmission sleeve and power output shaft are all arranged inside the transmission housing, one end of the power input shaft extends out of the transmission housing and is connected to the power input device, and one end of the power output shaft extends out of the transmission housing and is connected to the vehicle transmission of the vehicle.

[0009] As an optional implementation of the above technical solution, a first bearing is connected between the power input shaft and the magnetic induction disk.

[0010] As an optional implementation of the above technical solution, a groove is provided at one end of the power input shaft, a boss is provided at one end of the power transmission sleeve, and a second bearing is provided between the boss and the groove.

[0011] As an optional implementation of the above technical solution, the power transmission sleeve is arranged on the outside of the power output shaft, and a third bearing and a fourth bearing are provided between the power transmission sleeve and the power output shaft.

[0012] As an optional implementation of the above technical solution, a fifth bearing is provided between the stator assembly and the power output shaft.

[0013] As an optional implementation of the above technical solution, the magnetic induction disk is equipped with a first braking mechanism.

[0014] As an optional implementation of the above technical solution, the first brake mechanism includes a first brake caliper, the first brake caliper is equipped with a first brake friction pad and a first brake assembly, and the first brake assembly brakes the magnetic induction disk through the first brake friction pad.

[0015] As an optional implementation of the above technical solution, the power transmission sleeve is equipped with a second braking mechanism.

[0016] As an optional implementation of the above technical solution, the second braking mechanism includes a second brake caliper, the second brake caliper is equipped with a second brake friction pad and a second brake assembly, the power transmission sleeve is provided with a brake disc, and the second brake assembly brakes the brake disc through the second brake friction pad.

[0017] On the other hand, the present invention adopts the following technical solutions: a working method of a magnetic transmission system, including a range-extending mode, a torque-increasing mode, a single-motor pure electric mode, and a dual-motor pure electric mode;

[0018] The extended-range mode includes: the first power clutch combines the power input shaft with the magnetic induction disk, the second power clutch separates the winding disk and the magnetic induction disk, the third power clutch separates the power transmission sleeve and the power output shaft, the second brake mechanism locks the power transmission sleeve, the power input device drives the magnetic induction disk to rotate, the winding and the permanent magnet generate electromagnetic induction, the current generated by the winding is transmitted to the power battery, the power battery provides power to the rotor assembly, and the power output shaft rotates with the rotor assembly;

[0019] The torque-increasing mode includes: when the speed of the power output shaft is lower than the set speed, the first power clutch combines the power input shaft with the magnetic induction disk, the second power clutch separates the winding disk and the magnetic induction disk, the third power clutch combines the power transmission sleeve and the power output shaft, the third power clutch combines the power transmission sleeve and the power output shaft, the first brake mechanism releases the magnetic induction disk, the power input device drives the magnetic induction disk to rotate, the current generated by the winding is transmitted to the power battery, the power battery provides power to the rotor assembly, and the power output shaft rotates with the rotor assembly; when the speed of the power output shaft reaches the set speed, the second power clutch combines the winding disk and the magnetic induction disk, the third power clutch combines the power transmission sleeve and the power output shaft, and the power of the power input device is directly transmitted to the power output shaft;

[0020] The single-motor pure electric mode includes: the first power clutch separates the power input shaft from the magnetic induction disk, the second power clutch separates the winding disk from the magnetic induction disk, the third power clutch separates the power transmission sleeve from the power output shaft, the second brake mechanism locks the power transmission sleeve, and the power battery provides power to the rotor assembly, so that the power output shaft rotates with the rotor assembly;

[0021] The dual-motor pure electric mode includes: the third power clutch combines the power transmission sleeve and the power output shaft, the second power clutch separates the winding disk and the magnetic induction disk, the first brake mechanism locks the magnetic induction disk, and the power battery provides power to the winding and rotor assemblies respectively. Under the action of the permanent magnet and the stator assembly, the power transmission sleeve and the power output shaft rotate synchronously.

[0022] The beneficial effects of the present invention are:

[0023] The present invention utilizes a first power clutch to control the power on-off between the magnetic induction disk and the power input shaft, utilizes a second power clutch to control the power on-off between the power transmission sleeve and the magnetic induction disk, and utilizes a third power clutch to control the power on-off between the power output shaft and the power transmission sleeve. The present invention can realize multiple functions of a hybrid vehicle and complete the switching process of various working modes of the hybrid vehicle. The working mode switching is smooth, the real-time control effect is good, and the present invention has the characteristics of simple structure, convenient maintenance, good controllability, high working efficiency, long service life, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of a magnetic transmission system in one embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the transmission housing in one embodiment of the present invention.

[0026] In the figure: 1-power input shaft; 2-magnetic induction disk; 3-power transmission sleeve; 4-rotor assembly; 5-stator assembly; 6-power battery; 7-power output shaft; 8-power input device; 9-first power clutch; 10-permanent magnet; 11-winding disk; 12-second power clutch; 13-winding; 14-third power clutch; 15-battery; 16-motor control unit; 17-output control unit; 18-rectifier unit; 19-slip ring; 20-carbon brush; 21-transmission housing; 22-first bearing; 23-second bearing; 24-third bearing; 25-fourth bearing; 26-fifth bearing; 27-first braking mechanism; 28-second braking mechanism; 29-universal joint; 30-wheel. DETAILED DESCRIPTION

[0027] Example

[0028] like Figure 1 and Figure 2 As shown, this embodiment provides a magnetic transmission system, including a transmission housing 21, a power input shaft 1, a magnetic induction disc 2, a power transmission sleeve 3, a rotor assembly 4, a stator assembly 5, a power battery 6 and a power output shaft 7. One end of the power input shaft 1 is connected to a power input device 8, and the power input device 8 is an engine, which provides rotational power for the power input shaft 1. The other end of the power input shaft 1 is rotatably connected to the magnetic induction disc 2, and the magnetic induction disc 2 is sleeved on the power input shaft 1. A first bearing 22 is connected between the power input shaft 1 and the magnetic induction disc 2, so that the magnetic induction disc 2 can rotate relative to the power input shaft 1. The power input shaft 1, the power transmission sleeve 3 and the power output shaft 7 are all arranged inside the transmission housing 21, one end of the power input shaft 1 extends out of the transmission housing 21 and is connected to the power input device 8, and one end of the power output shaft 7 extends out of the transmission housing 21 and is connected to the vehicle transmission of the vehicle. The stator assembly 5 is arranged inside the transmission housing 21, and a fifth bearing 26 is arranged between the stator assembly 5 and the power output shaft 7.

[0029] A first power clutch 9 is provided between the magnetic induction disc 2 and the power input shaft 1, and a plurality of permanent magnets 10 distributed in an annular shape are provided on the magnetic induction disc 2. The first power clutch 9 can combine the power input shaft 1 with the magnetic induction disc 2, so that the magnetic induction disc 2 rotates with the power input shaft 1; the first power clutch 9 can separate the power input shaft 1 from the magnetic induction disc 2, so that the magnetic induction disc 2 and the power input shaft 1 rotate independently.

[0030] like Figure 2 As shown, a groove is provided at one end of the power input shaft 1, and a boss is provided at one end of the power transmission sleeve 3. A second bearing 23 is provided between the boss and the groove to ensure the concentricity of the power input shaft 1 and the power transmission sleeve 3. A winding disk 11 is fixedly provided on the power transmission sleeve 3, and the winding disk 11 can rotate with the power transmission sleeve 3. A plurality of windings 13 distributed in an annular shape are provided on the winding disk 11, and the windings 13 cooperate with the permanent magnet 10, and the windings 13 are electrically connected to the power battery 6. A second power clutch 12 is provided between the winding disk 11 and the magnetic induction disk 2, and the second power clutch 12 can combine the winding disk 11 with the magnetic induction disk 2, so that the magnetic induction disk 2 rotates with the power transmission sleeve 3; the second power clutch 12 can separate the winding disk 11 from the magnetic induction disk 2, so that the magnetic induction disk 2 and the power transmission sleeve 3 rotate independently. When the magnetic induction disk 2 rotates relative to the winding disk 11, the winding 13 and the permanent magnet 10 generate electromagnetic induction, and the current generated by the winding 13 is transmitted to the power battery 6 for storage; when the winding 13 rotates, the power transmission sleeve 3 can transmit the torque to the power output shaft 7 through the engagement of the third power clutch 14.

[0031] The power output shaft 7 is rotatably matched with the power transmission sleeve 3, the power transmission sleeve 3 is arranged on the outside of the power output shaft 7, and a third bearing 24 and a fourth bearing 25 are arranged between the power output shaft 3 and the power output shaft 7, so that the power transmission sleeve 3 and the power output shaft 7 can rotate relative to each other. The rotor assembly 4 is installed on the power output shaft 7, the stator assembly 5 and the rotor assembly 4 match each other, and the stator assembly 5 is electrically connected to the power battery 6. A third power clutch 14 is arranged between the power output shaft 7 and the power transmission sleeve 3, and the third power clutch 14 can combine the power transmission sleeve 3 and the power output shaft 7, so that the power transmission sleeve 3 and the power output shaft 7 rotate together; the third power clutch 14 can separate the power transmission sleeve 3 and the power output shaft 7, so that the power transmission sleeve 3 and the power output shaft 7 rotate independently.

[0032] like Figure 2 As shown, in this embodiment, the power battery 6 includes a storage battery 15, a motor control unit 16, an output control unit 17 and a rectifier unit 18, the storage battery 15, the motor control unit 16 and the stator assembly 5 are electrically connected in sequence, and the winding 13, the rectifier unit 18, the motor control unit 16 and the storage battery 15 are electrically connected in sequence. The power transmission sleeve 3 is provided with a slip ring 19, the slip ring 19 is electrically connected to the winding 13, the slip ring 19 is equipped with a carbon brush 20, and the carbon brush 20 is electrically connected to the rectifier unit 18.

[0033] like Figure 2As shown, the magnetic induction disc 2 is provided with a first brake mechanism 27. Specifically, the first brake mechanism 27 includes a first brake caliper, the first brake caliper is provided with a first brake friction pad and a first brake assembly, and the first brake assembly brakes the magnetic induction disc 2 through the first brake friction pad.

[0034] The power transmission sleeve 3 is equipped with a second brake mechanism 28. Specifically, the second brake mechanism 28 includes a second brake caliper, the second brake caliper is equipped with a second brake friction pad and a second brake assembly. A brake disc is provided on the power transmission sleeve 3, and the second brake assembly brakes the brake disc through the second brake friction pad.

[0035] The working methods of the magnetic transmission system include extended-range mode, increased-torque mode, single-motor pure electric mode and dual-motor pure electric mode. The details of the extended-range mode, increased-torque mode, single-motor pure electric mode and dual-motor pure electric mode are as follows.

[0036] The extended-range mode includes: the first power clutch 9 combines the power input shaft 1 with the magnetic induction disk 2, the second power clutch 12 separates the winding disk 11 and the magnetic induction disk 2, the third power clutch 14 separates the power transmission sleeve 3 and the power output shaft 7, the second brake mechanism 28 locks the power transmission sleeve 3, the power input device 8 drives the magnetic induction disk 2 to rotate, the winding 13 and the permanent magnet 10 generate electromagnetic induction, the current generated by the winding 13 is transmitted to the power battery 6, the power battery 6 provides power to the rotor assembly 4, so that the power output shaft 7 rotates with the rotor assembly 4, and the power output shaft 7 is connected to the wheel 30 through the universal joint 29, thereby providing power to the vehicle.

[0037] The torque increasing mode includes: when the speed of the power output shaft 7 is lower than the set speed, the first power clutch 9 combines the power input shaft 1 with the magnetic induction disk 2, the second power clutch 12 separates the winding disk 11 and the magnetic induction disk 2, the third power clutch 14 combines the power transmission sleeve 3 with the power output shaft 7, the first brake mechanism 27 releases the magnetic induction disk 2, the power input device 8 drives the magnetic induction disk 2 to rotate, the current generated by the winding 13 is transmitted to the power battery 6, the power battery 6 provides power to the rotor assembly 4, and the power output shaft 7 rotates with the rotor assembly 4. Because the speed of the power output shaft 7 is lower than the speed of the power input shaft 1, due to the magnetic induction effect between the permanent magnet 10 and the winding 13, the winding 13 generates a torque while generating current, and the torque of the winding disk 11 is transmitted to the power output shaft 7 through the third power clutch 14, thereby increasing the torque of the power output shaft 7.

[0038] When the speed of the power output shaft 7 reaches the set speed, the second power clutch 12 combines the winding disk 11 and the magnetic induction disk 2, and the third power clutch 14 combines the power transmission sleeve 3 and the power output shaft 7. The power of the power input device 8 is directly transmitted to the power output shaft 7, and the power output shaft 7 is connected to the wheel 30 through the universal joint 29, thereby providing power to the vehicle.

[0039] The single-motor pure electric mode includes: the first power clutch 9 separates the power input shaft 1 from the magnetic induction disk 2, the second power clutch 12 separates the winding disk 11 and the magnetic induction disk 2, the third power clutch 14 separates the power transmission sleeve 3 and the power output shaft 7, the second braking mechanism 28 locks the power transmission sleeve 3, the power battery 6 provides power to the rotor assembly 4, so that the power output shaft 7 rotates with the rotor assembly 4, and the power output shaft 7 is connected to the wheel 30 through the universal joint 29, thereby providing power to the vehicle.

[0040] The dual-motor pure electric mode includes: the third power clutch 14 combines the power transmission sleeve 3 and the power output shaft 7, the second power clutch 12 separates the winding disk 11 and the magnetic induction disk 2, the first brake mechanism 27 locks the magnetic induction disk 2, and the power battery 6 provides power to the winding 13 and the rotor assembly 4 respectively. Under the action of the permanent magnet 10 and the stator assembly 5, the power transmission sleeve 3 and the power output shaft 7 rotate synchronously, and the power output shaft 7 is connected to the wheel 30 through the universal joint 29, thereby providing power to the vehicle.

[0041] The present invention utilizes the first power clutch 9 to control the power on-off between the magnetic induction disk 2 and the power input shaft 1, utilizes the second power clutch 12 to control the power on-off between the power transmission sleeve 3 and the magnetic induction disk 2, utilizes the third power clutch 14 to control the power on-off between the power output shaft 7 and the power transmission sleeve 3, utilizes the first brake mechanism 27 to lock and release the magnetic induction disk 2, utilizes the second brake mechanism 28 to lock and release the power transmission sleeve 3, can realize multiple functions of the hybrid vehicle, complete the switching process of various working modes of the hybrid vehicle, its working mode switching is smooth, the real-time control effect is good, and it has the characteristics of simple structure, convenient maintenance, good controllability, high working efficiency, long service life, etc.

[0042] In the description of the present invention, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. Under the condition that there is no contradiction, those skilled in the art may combine the features of different embodiments. The protection scope of the present invention is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present invention, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the protection scope of the present invention.

Claims

1. A magnetic transmission system, characterized in that: The invention comprises a power input shaft (1), a magnetic induction disc (2), a power transmission sleeve (3), a rotor assembly (4), a stator assembly (5), a power battery (6) and a power output shaft (7), wherein one end of the power input shaft (1) is connected to a power input device (8), and the other end of the power input shaft (1) is rotatably connected to the magnetic induction disc (2); a first power clutch (9) is arranged between the magnetic induction disc (2) and the power input shaft (1); a plurality of permanent magnets (10) distributed in an annular shape are arranged on the magnetic induction disc (2); a winding disc (11) is arranged on the power transmission sleeve (3), and the winding disc (11) and the magnetic induction disc are connected to each other. (2), a second power clutch (12) is provided between the power output shaft (7) and the power transmission sleeve (3), a plurality of windings (13) distributed in an annular shape are provided on the winding disk (11), the windings (13) and the permanent magnets (10) cooperate with each other, and the windings (13) and the power battery (6) are electrically connected; the power output shaft (7) and the power transmission sleeve (3) are rotationally matched, and a third power clutch (14) is provided between the power output shaft (7) and the power transmission sleeve (3); the rotor assembly (4) is installed on the power output shaft (7), the stator assembly (5) and the rotor assembly (4) match each other, and the stator assembly (5) and the power battery (6) are electrically connected.

2. The magnetic transmission system according to claim 1, characterized in that: The power battery (6) comprises a storage battery (15), a motor control unit (16), an output control unit (17) and a rectifier unit (18); the storage battery (15), the motor control unit (16) and the stator assembly (5) are electrically connected in sequence; and the winding (13), the rectifier unit (18), the motor control unit (16) and the storage battery (15) are electrically connected in sequence.

3. The magnetic transmission system according to claim 2, characterized in that: The power transmission sleeve (3) is provided with a slip ring (19), the slip ring (19) is electrically connected to the winding (13), the slip ring (19) is equipped with a carbon brush (20), and the carbon brush (20) is electrically connected to the rectifier unit (18).

4. The magnetic transmission system according to claim 1, characterized in that: It also comprises a transmission housing (21), wherein the power input shaft (1), the power transmission sleeve (3) and the power output shaft (7) are all arranged inside the transmission housing (21), one end of the power input shaft (1) extends out of the transmission housing (21) and is connected to a power input device (8), and one end of the power output shaft (7) extends out of the transmission housing (21) and is connected to the vehicle transmission of the vehicle.

5. The magnetic transmission system according to claim 4, characterized in that: A first bearing (22) is connected between the power input shaft (1) and the magnetic induction disk (2).

6. The magnetic transmission system according to claim 5, characterized in that: One end of the power input shaft (1) is provided with a groove, one end of the power transmission sleeve (3) is provided with a boss, and a second bearing (23) is provided between the boss and the groove.

7. The magnetic transmission system according to claim 6, characterized in that: The power transmission sleeve (3) is arranged on the outside of the power output shaft (7), and a third bearing (24) and a fourth bearing (25) are arranged between the power transmission sleeve (3) and the power output shaft (7); and a fifth bearing (26) is arranged between the stator assembly (5) and the power output shaft (7).

8. The magnetic transmission system according to claim 1, characterized in that: The magnetic induction disc (2) is provided with a first brake mechanism (27); the first brake mechanism (27) comprises a first brake caliper, the first brake caliper is provided with a first brake friction pad and a first brake assembly, and the first brake assembly brakes the magnetic induction disc (2) via the first brake friction pad.

9. The magnetic transmission system according to claim 1, characterized in that: The power transmission sleeve (3) is provided with a second brake mechanism (28); the second brake mechanism (28) comprises a second brake caliper, the second brake caliper is provided with a second brake friction pad and a second brake assembly, a brake disc is provided on the power transmission sleeve (3), and the second brake assembly brakes the brake disc via the second brake friction pad.

10. A working method of a magnetic transmission system according to any one of claims 1 to 9, characterized in that: Including extended range mode, increased torque mode, single-motor pure electric mode and dual-motor pure electric mode; The extended-range mode includes: a first power clutch (9) combines the power input shaft (1) with the magnetic induction disk (2), a second power clutch (12) separates the winding disk (11) and the magnetic induction disk (2), a third power clutch (14) separates the power transmission sleeve (3) and the power output shaft (7), a second brake mechanism (28) locks the power transmission sleeve (3), a power input device (8) drives the magnetic induction disk (2) to rotate, the winding (13) and the permanent magnet (10) generate electromagnetic induction, the current generated by the winding (13) is transmitted to the power battery (6), the power battery (6) provides power to the rotor assembly (4), and the power output shaft (7) rotates along with the rotor assembly (4); The torque increasing mode comprises: when the rotation speed of the power output shaft (7) is lower than the set rotation speed, the first power clutch (9) combines the power input shaft (1) with the magnetic induction disk (2), the second power clutch (12) separates the winding disk (11) and the magnetic induction disk (2), the third power clutch (14) combines the power transmission sleeve (3) and the power output shaft (7), the first brake mechanism (27) releases the magnetic induction disk (2), the power input device (8) drives the magnetic induction disk (2) to rotate, the current generated by the winding (13) is transmitted to the power battery (6), the power battery (6) provides power to the rotor assembly (4), so that the power output shaft (7) rotates with the rotor assembly (4); when the rotation speed of the power output shaft (7) reaches the set rotation speed, the second power clutch (12) combines the winding disk (11) and the magnetic induction disk (2), the third power clutch (14) combines the power transmission sleeve (3) and the power output shaft (7), and the power of the power input device (8) is directly transmitted to the power output shaft (7); The single-motor pure electric mode includes: the first power clutch (9) separates the power input shaft (1) from the magnetic induction disk (2), the second power clutch (12) separates the winding disk (11) from the magnetic induction disk (2), the third power clutch (14) separates the power transmission sleeve (3) from the power output shaft (7), the second brake mechanism (28) locks the power transmission sleeve (3), and the power battery (6) provides power to the rotor assembly (4), so that the power output shaft (7) rotates with the rotor assembly (4); The dual-motor pure electric mode includes: the third power clutch (14) combines the power transmission sleeve (3) and the power output shaft (7), the second power clutch (12) separates the winding disk (11) and the magnetic induction disk (2), the first brake mechanism (27) locks the magnetic induction disk (2), the power battery (6) provides power to the winding (13) and the rotor assembly (4), and under the action of the permanent magnet (10) and the stator assembly (5), the power transmission sleeve (3) and the power output shaft (7) rotate synchronously.

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