Drive assembly and control method thereof, program product, storage medium, equipment and vehicle

Abstract

The invention discloses a driving assembly and a control method thereof, a program product, a storage medium, equipment and a vehicle, and relates to the technical field of vehicles. The driving assembly comprises a first driving motor and a second driving motor, the first driving motor is in transmission connection with the first wheel and the second wheel, and the second driving motor is in transmission connection with the first wheel and the second wheel. Wherein an on-off mechanism is arranged between at least one of the first driving motor and the second driving motor and at least one of the first wheel and the second wheel, and the on-off mechanism is configured to execute on / off switching of a transmission path between the driving motor corresponding to the on-off mechanism and the wheel. The on-off mechanisms can disconnect transmission paths between the corresponding driving motors and the wheels, so that rotation of the wheels cannot drive the corresponding driving motors to rotate along with the wheels, reverse dragging force caused by rotation of the driving motors can be avoided, and reduction of energy loss is facilitated.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a drive assembly and a control method thereof, a program product, a storage medium, a device, and a vehicle. Background Art

[0002] In the multi-motor drive mode, the appropriate drive motor can be selected according to the working conditions to improve the control flexibility of the drive system. However, the reverse drag force caused by the rotation of the non-working drive motor will cause energy loss. Summary of the Invention

[0003] Embodiments of the present application provide a drive assembly and a control method thereof, a program product, a storage medium, a device, and a vehicle to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of the present application, a drive assembly is provided for transmitting power to a first wheel assembly, wherein the wheel assembly includes a first wheel and a second wheel disposed opposite to each other, and the drive assembly includes:

[0005] a first drive motor, drivingly connected to the first wheel and the second wheel respectively;

[0006] a second drive motor, drivingly connected to the first wheel and the second wheel respectively;

[0007] An on-off mechanism is provided between at least one of the first drive motor and the second drive motor and at least one of the first wheel and the second wheel, and the on-off mechanism is configured to perform on / off switching of the transmission path between the corresponding drive motor and the wheel.

[0008] In some embodiments, the drive assembly further comprises:

[0009] a first on-off mechanism, disposed between the first wheel and the first drive motor, the first on-off mechanism being configured to switch on / off a transmission path between the first wheel and the first drive motor;

[0010] The second on-off mechanism is provided between the second wheel and the first drive motor, and is configured to perform on / off switching of the transmission path between the second wheel and the first drive motor.

[0011] In some embodiments, the drive assembly further comprises:

[0012] a third on-off mechanism, disposed between the first wheel and the second drive motor, the third on-off mechanism being configured to switch on / off the transmission path between the first wheel and the second drive motor, the operating state of the third on-off mechanism being configured to be opposite to the operating state of the first on-off mechanism;

[0013] A fourth on-off mechanism is arranged between the second wheel and the second drive motor. The fourth on-off mechanism is configured to perform on / off switching of the transmission path between the second wheel and the second drive motor. The working state of the fourth on-off mechanism is configured to be opposite to the working state of the second on-off mechanism.

[0014] In some embodiments, the drive assembly further comprises:

[0015] a first reducer, wherein the first drive motor is connected to the first wheel through the first reducer, and the second drive motor is connected to the first wheel through the first reducer; and / or

[0016] A second reducer, the first drive motor is connected to the second wheel through the second reducer, and the second drive motor is connected to the second wheel through the second reducer.

[0017] In some embodiments, the first on-off mechanism is disposed between the first drive motor and the first reducer; and / or,

[0018] The second on-off mechanism is provided between the first drive motor and the second reducer; and / or,

[0019] The third on-off mechanism is provided between the second drive motor and the first reducer; and / or,

[0020] The fourth on-off mechanism is arranged between the second drive motor and the second reducer.

[0021] In some embodiments, the first reducer has a first input end and a second input end, the first input end is in transmission connection with the first drive motor, and the second input end is in transmission connection with the second drive motor;

[0022] The first drive motor outputs a first transmission ratio through the first reducer, and the second drive motor outputs a second transmission ratio through the first reducer, and the second transmission ratio is the same as the first transmission ratio.

[0023] In some embodiments, the second reducer has a third input end and a fourth input end, the third input end is in transmission connection with the first drive motor, and the fourth input end is in transmission connection with the second drive motor;

[0024] The first drive motor outputs a third transmission ratio through the second reducer, and the second drive motor outputs a fourth transmission ratio through the second reducer. The first transmission ratio, the second transmission ratio, the third transmission ratio and the fourth transmission ratio are the same.

[0025] In some embodiments, the second reducer has a third input end and a fourth input end;

[0026] The first drive motor outputs a third transmission ratio through the second reducer, and the second drive motor outputs a fourth transmission ratio through the second reducer. The fourth transmission ratio is the same as the second transmission ratio but different from the third transmission ratio.

[0027] In some embodiments, the first reducer includes a first input gear and a first output gear, the first input gear is in transmission connection with the first drive motor, the first output gear is in transmission connection with the first wheel, and the first on-off mechanism is disposed between the first input gear and the first output gear; and / or,

[0028] The first reducer includes a second input gear and a first output gear, the second input gear is in driving connection with the second drive motor, the first output gear is in driving connection with the first wheel, and the third on-off mechanism is arranged between the second input gear and the first output gear; and / or,

[0029] The second reducer includes a third input gear and a second output gear, the third input gear is in driving connection with the first drive motor, the second output gear is in driving connection with the second wheel, and the second on-off mechanism is arranged between the third input gear and the second output gear; and / or,

[0030] The second reducer includes a fourth input gear and a second output gear. The fourth input gear is in transmission connection with the second drive motor. The second output gear is in transmission connection with the second wheel. The fourth on-off mechanism is arranged between the fourth input gear and the second output gear.

[0031] In some embodiments, the second reducer includes a third input gear, a first transmission gear, a second transmission gear and a second output gear, the third input gear is transmission-connected to the first drive motor, the second output gear is transmission-connected to the second wheel, the first transmission gear is meshed with the third input gear, the second transmission gear is meshed with the second output gear, and the first transmission gear and the second transmission gear are coaxially arranged and transmission-connected.

[0032] In some embodiments, the second on-off mechanism is disposed between the first transmission tooth member and the second transmission tooth member, and is configured to perform on / off switching of the transmission path between the first transmission tooth member and the second transmission tooth member.

[0033] In some embodiments, the second reducer further includes a fourth input tooth member, a third transmission tooth member and a fourth transmission tooth member, the fourth input tooth member is in transmission connection with the second drive motor, the third transmission tooth member is engaged with the fourth input tooth member, the fourth transmission tooth member is engaged with the second output tooth member, and the third transmission tooth member is coaxially arranged with the fourth transmission tooth member and is in transmission connection with the second drive motor.

[0034] In some embodiments, the fourth on-off mechanism is disposed between the fourth input gear and the second drive motor, and is configured to perform on / off switching of the transmission path between the fourth input gear and the second drive motor.

[0035] In some embodiments, the first reducer includes a first input gear, a second input gear, a fifth transmission gear, a sixth transmission gear and a first output gear, the first input gear is transmission-connected to the first drive motor, the second input gear is transmission-connected to the second drive motor, the first output gear is transmission-connected to the first wheel, the first input gear and the second input gear are both engaged with the fifth transmission gear, and the fifth transmission gear is coaxially arranged and transmission-connected to the sixth transmission gear.

[0036] In some embodiments, the first on-off mechanism is disposed between the first input tooth member and the first drive motor, and is configured to perform on / off switching of the transmission path between the first input tooth member and the first drive motor; and / or,

[0037] The third on-off mechanism is provided between the second input gear and the second drive motor, and is configured to perform on / off switching of the transmission path between the second input gear and the second drive motor.

[0038] In some embodiments, the drive assembly is further configured to transmit power to a second wheel assembly, the second wheel assembly comprising a third wheel and a fourth wheel disposed opposite to each other, and the drive assembly further comprises:

[0039] The third drive motor is transmission-connected to the third wheel and the fourth wheel respectively.

[0040] In some embodiments, the first wheel assembly is a rear wheel and the second wheel assembly is a front wheel.

[0041] In some embodiments, the drive assembly further comprises:

[0042] The fifth on-off mechanism is provided between the third wheel and the third drive motor and is configured to perform on / off switching of the transmission path between the third wheel and the third drive motor.

[0043] In some embodiments, the fifth on-off mechanism is further provided between the fourth wheel and the third drive motor, and is further configured to perform on / off switching of the transmission path between the fourth wheel and the third drive motor.

[0044] In some embodiments, the drive assembly further comprises:

[0045] A third reducer, wherein the third drive motor is respectively connected to the third wheel and the fourth wheel through the third reducer.

[0046] In some embodiments, the fifth on-off mechanism is disposed between the third reducer and the third drive motor, and is configured to perform on / off switching of the transmission path between the third reducer and the third drive motor.

[0047] In some embodiments, the drive assembly further comprises:

[0048] A controller is signal-connected to at least one of the on-off mechanisms.

[0049] According to a second aspect of the present application, a drive assembly control method is provided, which is applied to the above-mentioned drive assembly, and the method includes:

[0050] determining current load information in response to a load condition of the vehicle;

[0051] determining a driving mode based on the current load information;

[0052] The drive system assembly is controlled to operate according to the drive mode to output power matching the load condition.

[0053] In some embodiments, controlling the drive system assembly to operate according to the drive mode to output power matching the load condition includes:

[0054] The driving mode is determined based on the load condition and a correspondence table, wherein the correspondence table includes correspondences between different load conditions and different driving modes.

[0055] According to a third aspect of the present application, a non-volatile storage medium is provided, storing computer-readable instructions, wherein the computer-readable instructions are called by a processor to implement the above-mentioned drive assembly control method.

[0056] According to a fourth aspect of the present application, a computer program product is provided, which comprises a computer program, when the computer program is run on an electronic device, causes the electronic device to execute the drive assembly control method described above.

[0057] According to a fifth aspect of the present application, an electronic device is provided, which comprises a memory and a processor, the memory stores computer readable instructions, and the processor is configured to invoke the computer readable instructions to implement the drive assembly control method described above.

[0058] According to a sixth aspect of the present application, a vehicle is provided, which executes the drive assembly control method described above, or comprises the drive assembly described above, or comprises the electronic device described above.

[0059] In the drive assembly of the embodiments of the present application, when the on-off mechanism connects the transmission path between the corresponding drive motor and the wheel, the drive motor can transmit power to the corresponding wheel to rotate the wheel, and when the corresponding wheel does not need the corresponding drive motor, the on-off mechanism can disconnect the transmission path between the corresponding drive motor and the wheel, so that the rotation of the wheel does not drive the corresponding drive motor to rotate, thereby avoiding the reverse drag force caused by the rotation of the drive motor, which helps to reduce energy loss. In addition, the first drive motor and the second drive motor can both drive the first wheel assembly, and when one of the first drive motor and the second drive motor fails, the other one can provide power, thereby ensuring the smooth operation of the vehicle.

[0060] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0061] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0062] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0063] Figure 1 The structural schematic diagram of the drive assembly provided for some embodiments of the present application is shown in the figure;

[0064] Figure 2 The structural schematic diagram of the first speed reducer provided for some embodiments of the present application is shown in the figure;

[0065] Figure 3A schematic structural diagram of a second reducer provided in some embodiments of the present application;

[0066] Figure 4 A schematic structural diagram of a third reducer provided in some embodiments of the present application;

[0067] Figure 5 A structural block diagram of the on / off mechanism, drive motor, and controller of the drive assembly provided in some embodiments of the present application;

[0068] Figure 6 A schematic flow chart of a drive assembly control method provided in some embodiments of the present application;

[0069] Figure 7 A structural block diagram of an electronic device provided for some embodiments of the present application;

[0070] Figure 8 A structural block diagram of a vehicle provided for some embodiments of the present application.

[0071] Description of reference numerals:

[0072] 1000-vehicles;

[0073] 100-drive assembly;

[0074] 11-first drive motor; 12-second drive motor; 13-third drive motor;

[0075] 21-first wheel; 22-second wheel; 23-third wheel; 24-fourth wheel;

[0076] 31-first on-off mechanism; 32-second on-off mechanism; 33-third on-off mechanism; 34-fourth on-off mechanism; 35-fifth on-off mechanism;

[0077] 41 - first reducer; 411 - first input gear; 412 - second input gear; 413 - first output gear; 414 - fifth transmission gear; 415 - sixth transmission gear; a - first input end; b - second input end;

[0078] 42 - second reducer; 421 - third input gear; 422 - first transmission gear; 423 - second transmission gear; 424 - second output gear; 425 - fourth input gear; 426 - third transmission gear; 427 - fourth transmission gear; c - third input terminal; d - fourth input terminal;

[0079] 43- third reducer; 431- fifth input gear; 432- third output gear;

[0080] 50-controller;

[0081] 60-differential;

[0082] 200-electronic equipment;

[0083] 210-Processor

[0084] 220-Memory. DETAILED DESCRIPTION

[0085] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0086] Figure 1 The schematic diagram of the structure of the drive assembly 100 provided in some embodiments of the present application is shown in FIG. Figure 1 According to the first aspect of the present application, a drive assembly 100 is provided for transmitting power to a first wheel 21 assembly, the wheel assembly comprising a first wheel 21 and a second wheel 22 arranged opposite to each other. It is understood that the first wheel 21 and the second wheel 22 are both in transmission connection with the drive assembly 100. The first wheel 21 assembly can be a front wheel or a rear wheel. For example, Figure 1 In the embodiment, the first wheel 21 assembly is the rear wheel.

[0087] In some embodiments, the drive assembly 100 includes a first drive motor 11 and a second drive motor 12. The first drive motor 11 is drivingly connected to the first wheel 21 and the second wheel 22, respectively, and the second drive motor 12 is drivingly connected to the first wheel 21 and the second wheel 22, respectively. An on-off mechanism is provided between at least one of the first drive motor 11 and the second drive motor 12 and at least one of the first wheel 21 and the second wheel 22. The on-off mechanism is configured to switch the transmission path between the corresponding drive motor and the wheel on and off.

[0088] It can be understood that the drive assembly 100 has a first output end for transmitting power to the first wheel 21 and a second output end for transmitting power to the second wheel 22. The first output end is connected to the first wheel 21 by transmission, and the second output end is connected to the second wheel 22 by transmission.

[0089] It is understood that an on / off mechanism is provided between at least one of the drive motors and the wheel. For example, an on / off mechanism may be provided between the first drive motor 11 and the first wheel 21 and the second wheel 22, respectively, while no on / off mechanism may be provided between the second drive motor 12 and the first wheel 21 and the second wheel 22; or an on / off mechanism may be provided between the first drive motor 11 and the first wheel 21 and the second wheel 22, respectively, while an on / off mechanism may be provided between the second drive motor 12 and one of the first wheel 21 and the second wheel 22; or an on / off mechanism may be provided between the first drive motor 11 and the first wheel 21 and the second wheel 22, respectively, while an on / off mechanism may be provided between the second drive motor 12 and the first wheel 21 and the second wheel 22. In other words, an on / off mechanism may be provided between the drive motors and their corresponding wheels as needed.

[0090] A position is provided with an on-off mechanism, which connects the transmission path between the corresponding drive motor and the wheel, so that the drive motor can drive the corresponding wheel to rotate. The on-off mechanism disconnects the transmission path between the corresponding drive motor and the wheel, so that the wheel cannot drive the corresponding drive motor to rotate.

[0091] The on-off mechanism can be an electromagnetic coupler, a friction coupler, a tooth coupler, etc.

[0092] In an embodiment of the present application, an on-off mechanism is provided. When the on-off mechanism connects the transmission path between the corresponding drive motor and the wheel, the drive motor can transmit power to the corresponding wheel to rotate the wheel. When the corresponding wheel does not need the corresponding drive motor, the on-off mechanism can disconnect the transmission path between the corresponding drive motor and the wheel. In this way, the rotation of the wheel will not drive the corresponding drive motor to rotate, thereby avoiding the reverse drag force caused by the rotation of the drive motor, which helps to reduce energy loss.

[0093] In addition, both the first drive motor 11 and the second drive motor 12 can drive the first wheel 21 assembly. When one of the first drive motor 11 and the second drive motor 12 fails, the other can provide power, thereby ensuring the smooth operation of the vehicle 1000.

[0094] In some embodiments, the first drive motor 11 and the second drive motor 12 are arranged side by side along the length direction of the vehicle 1000 to save space required in the width direction of the vehicle 1000 .

[0095] Exemplarily, the second drive motor 12 is coaxially arranged with the first wheel 21 assembly.

[0096] In some embodiments, the drive assembly 100 also includes a first on-off mechanism 31 and a second on-off mechanism 32. The first on-off mechanism 31 is arranged between the first wheel 21 and the first drive motor 11, and the first on-off mechanism 31 is configured to perform on / off switching of the transmission path between the first wheel 21 and the first drive motor 11; the second on-off mechanism 32 is arranged between the second wheel 22 and the first drive motor 11, and the second on-off mechanism 32 is configured to perform on / off switching of the transmission path between the second wheel 22 and the first drive motor 11.

[0097] It is understood that an on-off mechanism is provided between the first drive motor 11 and the first wheel 21, and an on-off mechanism is provided between the first drive motor 11 and the second wheel 22. When the first on-off mechanism 31 connects the transmission path between the first drive motor 11 and the first wheel 21, and the second on-off mechanism 32 connects the transmission path between the first drive motor 11 and the second wheel 22, the first drive motor 11 can drive the first wheel 21 assembly to rotate; when the first drive motor 11 is not needed to provide power, the first on-off mechanism 31 disconnects the transmission path between the first drive motor 11 and the first wheel 21, and the second on-off mechanism 32 disconnects the transmission path between the first drive motor 11 and the second wheel 22. The rotation of the first wheel 21 assembly will not drive the first drive motor 11 to rotate, thereby avoiding the resistance caused by the first drive motor 11 to the first wheel 21 assembly.

[0098] In some embodiments, the drive assembly 100 further includes a third on-off mechanism 33 and a fourth on-off mechanism 34 .

[0099] A third on-off mechanism 33 is provided between the first wheel 21 and the second drive motor 12. The third on-off mechanism 33 is configured to switch the transmission path between the first wheel 21 and the second drive motor 12 on and off. The operating state of the third on-off mechanism 33 is configured to be opposite to the operating state of the first on-off mechanism 31. A fourth on-off mechanism 34 is provided between the second wheel 22 and the second drive motor 12. The fourth on-off mechanism 34 is configured to switch the transmission path between the second wheel 22 and the second drive motor 12 on and off. The operating state of the fourth on-off mechanism 34 is configured to be opposite to the operating state of the second on-off mechanism 32.

[0100] It is understood that an on-off mechanism is provided between the second drive motor 12 and the first wheel 21, and an on-off mechanism is provided between the second drive motor 12 and the second wheel 22. When the third on-off mechanism 33 connects the transmission path between the second drive motor 12 and the first wheel 21, and the fourth on-off mechanism 34 connects the transmission path between the second drive motor 12 and the second wheel 22, the second drive motor 12 can drive the first wheel 21 assembly to rotate; when the first drive motor 11 is not needed to provide power, the third on-off mechanism 33 disconnects the transmission path between the second drive motor 12 and the first wheel 21, and the fourth on-off mechanism 34 disconnects the transmission path between the second drive motor 12 and the second wheel 22. The rotation of the first wheel 21 assembly will not drive the second drive motor 12 to rotate, thereby avoiding the resistance caused by the second drive motor 12 to the first wheel 21 assembly.

[0101] It can be understood that the execution of the third on-off mechanism 33 and the fourth on-off mechanism 34, in conjunction with the execution of the first on-off mechanism 31 and the second on-off mechanism 32, can respectively connect or disconnect the transmission path between the drive motor and the corresponding wheel, thereby flexibly allocating the output power according to different load conditions, while avoiding the reverse drag force caused by the rotation of the non-working drive motor.

[0102] Through the above configuration, the drive assembly 100 can have multiple working modes:

[0103] Working mode 1: the first drive motor 11 drives the first wheel 21 assembly to rotate, the second drive motor 12 stops working, and the third on-off mechanism 33 and the fourth on-off mechanism 34 disconnect the transmission path between the first wheel assembly and the second drive motor 12.

[0104] Working mode 2: the second drive motor 12 drives the first wheel 21 assembly to rotate, the first drive motor 11 stops working, and the first on-off mechanism 31 and the second on-off mechanism 32 disconnect the transmission path between the first wheel assembly and the first drive motor 11.

[0105] Operating Mode Three: Both the first drive motor 11 and the second drive motor 12 are in operation. The first drive motor 11 drives one of the first wheel 21 and the second wheel 22, while the second drive motor 12 drives the other of the first wheel 21 and the second wheel 22. For example, the first on-off mechanism 31 connects the transmission path between the first wheel 21 and the first drive motor 11, the fourth on-off mechanism 34 connects the transmission path between the second wheel 22 and the second drive motor 12, and the second on-off mechanism 32 disconnects the transmission path between the second wheel 22 and the first drive motor 11, connecting the transmission path between the first wheel 21 and the second drive motor 12. That is, the first drive motor 11 drives the first wheel 21, and the second drive motor 12 drives the second wheel 22.

[0106] Working mode four: When the first wheel 21 assembly serves as a driven wheel and does not require power, the first drive motor 11 and the second drive motor 12 both stop working, the first on-off mechanism 31 and the second on-off mechanism 32 disconnect the transmission path between the first wheel assembly and the first drive motor 11, and the third on-off mechanism 33 and the fourth on-off mechanism 34 disconnect the transmission path between the first wheel assembly and the second drive motor 12.

[0107] Reference Figure 1 In some embodiments, the drive assembly 100 further includes a first reducer 41 , the first drive motor 11 is connected to the first wheel 21 through the first reducer 41 , and the second drive motor 12 is connected to the first wheel 21 through the first reducer 41 .

[0108] It can be understood that both the first drive motor 11 and the second drive motor 12 are decelerated and torque-increased through the first reducer 41 , and the power is transmitted to the first wheel 21 .

[0109] In some embodiments, the drive assembly 100 further includes a second reducer 42 , the first drive motor 11 is connected to the second wheel 22 via the second reducer 42 , and the second drive motor 12 is connected to the second wheel 22 via the second reducer 42 .

[0110] It can be understood that both the first drive motor 11 and the second drive motor 12 are decelerated and torque-increased through the second reducer 42 and transmit the power to the second wheel 22 assembly.

[0111] Usually, the drive motor is connected to the reducer through a drive shaft. The area between the drive motor and the reducer has a simple structure and can provide ample installation space. Therefore, the space between the drive motor and the reducer can be used to install the on-off mechanism, and the on-off mechanism is not easy to interfere with other transmission components, which helps to reduce the difficulty of assembly and ensure the structural stability of the drive assembly 100.

[0112] Based on the above reasons, in some embodiments, the first on-off mechanism 31 may be disposed between the first drive motor 11 and the first reducer 41 .

[0113] In some embodiments, the second on-off mechanism 32 may be disposed between the first drive motor 11 and the second reducer 42 .

[0114] In some embodiments, the third on-off mechanism 33 may be disposed between the second drive motor 12 and the first reducer 41 .

[0115] In some embodiments, the fourth on-off mechanism 34 may be disposed between the second drive motor 12 and the second reducer 42 .

[0116] Figure 2 The schematic diagram of the structure of the first reducer 41 provided in some embodiments of the present application is shown in FIG. Figure 2 In some embodiments, the first reducer 41 has a first input terminal a and a second input terminal b. The first input terminal a is in driving connection with the first drive motor 11, and the second input terminal b is in driving connection with the second drive motor 12. The first drive motor 11 outputs a first transmission ratio through the first reducer 41, and the second drive motor 12 outputs a second transmission ratio through the first reducer 41. The second transmission ratio is the same as the first transmission ratio.

[0117] Because the first and second drive motors 11, 12 selectively drive the first wheel 21, the same first and second gear ratios ensure that the power outputs from the first and second drive motors 11, 12 to the first wheel 21 are consistent. This ensures that, regardless of which drive motor drives the first wheel 21, the wheel's rotational speed and torque are consistently matched to the output of the drive motor. For example, with the same accelerator pedal depth, regardless of which drive motor is activated, the wheel's acceleration response and power level are more consistent, minimizing differences in driving feel caused by different gear ratios.

[0118] Figure 3 The schematic diagram of the structure of the second reducer 42 provided in some embodiments of the present application is shown in FIG. Figure 3 In some embodiments, the second reducer 42 has a third input terminal c and a fourth input terminal d. The third input terminal c is in driving connection with the first drive motor 11, and the fourth input terminal d is in driving connection with the second drive motor 12. The first drive motor 11 outputs a third gear ratio through the second reducer 42, and the second drive motor 12 outputs a fourth gear ratio through the second reducer 42. The first gear ratio, the second gear ratio, the third gear ratio, and the fourth gear ratio are the same.

[0119] Because the first and second drive motors 11, 12 selectively drive the second wheel 22, the same third and fourth gear ratios ensure that the power outputs from the first and second drive motors 11, 12 to the second wheel 22 are consistent. This ensures that, regardless of which drive motor drives the first wheel 21, the wheel's speed and torque are consistently matched to the output of the drive motor. For example, with the same accelerator pedal depth, regardless of which drive motor is activated, the wheel's acceleration response and power level are more consistent, minimizing differences in driving feel caused by different gear ratios.

[0120] In other embodiments, the first transmission ratio and the second transmission ratio may be different, or the third transmission ratio and the fourth transmission ratio may be different.

[0121] Illustratively, the first gear ratio, the second gear ratio, and the fourth gear ratio are the same, and the fourth gear ratio is different from the third gear ratio.

[0122] In the embodiment of the present application, the second drive motor 12 can output the same transmission ratio through the first reducer 41 and the second reducer 42 when the first drive motor 11 is not working, so that the first wheel 21 assembly can run smoothly; when the output power needs to be increased, the first wheel 21 can be driven by the first drive motor 11, and the second drive motor 12 can drive the second wheel 22. At this time, the transmission ratio output by the first drive motor 11 through the first reducer 41 is consistent with the transmission ratio output by the second drive motor 12 through the second reducer 42, which helps the first wheel 21 assembly to run stably under high output power.

[0123] It can be understood that in order to make the first wheel 21 and the second wheel 22 have different rotation speeds and torques,

[0124] Under certain operating conditions, such as cornering, U-turns, and muddy conditions, the first wheel 21 and the second wheel 1000 may need to output different power. For example, the first drive motor 11 can output different gear ratios to the first and second wheels 21, 22 via the first and second reducers 41, 42, resulting in different speeds and torques for the first and second wheels 21, 22. For another example, the first drive motor 11 can output a third gear ratio via the second reducer 42, while the second drive motor 12 can output a second gear ratio via the first reducer 41. Because the second and third gear ratios differ, the first and second wheels 21, 22 can achieve different speeds and torques.

[0125] In other embodiments of the setting position of the on-off mechanism, the on-off mechanism can also be set between the input gear and the output gear of the reducer. In this way, the transmission path between the on-off mechanism and the corresponding wheel is shortened, the number of other transmission components between the on-off mechanism and the corresponding wheel is reduced, and the resistance caused by these transmission components as the wheel rotates is reduced.

[0126] In some embodiments, the first reducer 41 includes a first input gear 411 and a first output gear 413. The first input gear 411 is in driving connection with the first drive motor 11, and the first output gear 413 is in driving connection with the first wheel 21. The first on / off mechanism 31 is disposed between the first input gear 411 and the first output gear 413 (not shown). That is, the first on / off mechanism 31 switches the transmission path between the first input gear 411 and the first output gear 413 on and off.

[0127] In some embodiments, the first reducer 41 includes a second input gear 412 and a first output gear 413. The second input gear 412 is in driving connection with the second drive motor 12, and the first output gear 413 is in driving connection with the first wheel 21. The third on / off mechanism 33 is disposed between the second input gear 412 and the first output gear 413 (not shown). That is, the third on / off mechanism 33 switches the transmission path between the second input gear 412 and the first output gear 413 on and off.

[0128] In some embodiments, the second reducer 42 includes a third input gear 421 and a second output gear 424, the third input gear 421 is connected to the first drive motor 11, the second output gear 424 is connected to the second wheel 22, and the second on-off mechanism 32 is provided between the third input gear 421 and the second output gear 424 (e.g., Figure 3 That is, the second on-off mechanism 32 switches the transmission path between the third input tooth member 421 and the second output tooth member 424 on and off.

[0129] In some embodiments, the second reducer 42 includes a fourth input gear 425 and a second output gear 424. The fourth input gear 425 is in driving connection with the second drive motor 12, and the second output gear 424 is in driving connection with the second wheel 22. The fourth on-off mechanism 34 is disposed between the fourth input gear 425 and the second output gear 424 (not shown). That is, the fourth on-off mechanism 34 switches the transmission path between the fourth input gear 425 and the second output gear 424 on and off.

[0130] In some other embodiments, part of the on-off mechanism may be arranged between the drive motor and the reducer as needed, and part of the on-off mechanism may be arranged between the input end and the output end of the corresponding reducer.

[0131] For example, Figure 1 As shown, the first on-off mechanism 31 is arranged between the first reducer 41 and the first drive motor 11, the third on-off mechanism 33 is arranged between the first reducer 41 and the second drive motor 12, the fourth on-off mechanism 34 is arranged between the second reducer 42 and the second drive motor 12, and the second on-off mechanism 32 is arranged between the input end and the output end of the second reducer 42.

[0132] The specific structures of the first reducer 41 and the second reducer 42 are introduced below.

[0133] Reference Figure 3In some embodiments, the second reducer 42 includes a third input gear 421, a first transmission gear 422, a second transmission gear 423 and a second output gear 424. The third input gear 421 is transmission-connected to the first drive motor 11, the second output gear 424 is transmission-connected to the second wheel 22, the first transmission gear 422 is meshed with the third input gear 421, the second transmission gear 423 is meshed with the second output gear 424, and the first transmission gear 422 and the second transmission gear 423 are coaxially arranged and transmission-connected.

[0134] Exemplarily, the third input gear 421 is coaxially disposed with the first drive motor 11 , and the second output gear 424 is coaxially disposed with the second wheel 22 .

[0135] In some embodiments, the second on-off mechanism 32 is disposed between the first transmission gear 422 and the second transmission gear 423 and is configured to switch the transmission path between the first transmission gear 422 and the second transmission gear 423 on and off. It will be understood that in the embodiment of the present application, the second on-off mechanism 32 is disposed between the input end and the output end of the second reducer 42.

[0136] Continue to refer to Figure 3 In some embodiments, the second reducer 42 further includes a fourth input gear 425, a third transmission gear 426 and a fourth transmission gear 427. The fourth input gear 425 is transmission-connected to the second drive motor 12, the third transmission gear 426 is engaged with the fourth input gear 425, the fourth transmission gear 427 is engaged with the second output gear 424, and the third transmission gear 426 and the fourth transmission gear 427 are coaxially arranged and transmission-connected.

[0137] Illustratively, the second drive motor 12 , the fourth input gear 425 , the second output gear 424 and the second wheel 22 are coaxially arranged.

[0138] In some embodiments, the third input gear 421 and the first transmission gear 422 form a first gear pair, and the fourth input gear 425 and the third transmission gear 426 form a second gear pair. The second gear pair is offset from the first gear pair in the width direction of the vehicle 1000. This offset means that the first and second gear pairs are at different distances from the second wheel 22. This reduces the risk of interference between the two gear pairs.

[0139] In some embodiments, the fourth on / off mechanism 34 is disposed between the fourth input gear 425 and the second drive motor 12 and is configured to switch the transmission path between the fourth input gear 425 and the second drive motor 12 on / off.

[0140] Reference Figure 2In some embodiments, the first speed reducer 41 comprises a first input gear 411, a second input gear 412, a fifth transmission gear 414, a sixth transmission gear 415 and a first output gear 413, the first input gear 411 is in transmission connection with the first driving motor 11, the second input gear 412 is in transmission connection with the second driving motor 12, the first output gear 413 is in transmission connection with the first wheel 21, the first input gear 411 and the second input gear 412 are in meshing with the fifth transmission gear 414, and the fifth transmission gear 414 is coaxially arranged and in transmission connection with the sixth transmission gear 415.

[0141] It can be understood that the first input gear 411 and the second input gear 412 share the fifth transmission gear 414, thereby the integration of the first speed reducer 41 can be improved.

[0142] Exemplarily, the second input gear 412, the second driving motor 12, the first output gear 413 and the first wheel 21 are coaxially arranged.

[0143] In some embodiments, the first on-off mechanism 31 is arranged between the first input gear 411 and the first driving motor 11 and is configured to perform switching of the on / off of the transmission path between the first input gear 411 and the first driving motor 11.

[0144] In some embodiments, the third on-off mechanism 33 is arranged between the second input gear 412 and the second driving motor 12 and is configured to perform switching of the on / off of the transmission path between the second input gear 412 and the second driving motor 12.

[0145] Referring to Figure 1 In some embodiments, the driving assembly 100 is further used for transmitting power to a second wheel 22 assembly, and the second wheel 22 assembly comprises a third wheel 23 and a fourth wheel 24 arranged oppositely.

[0146] The driving assembly 100 further comprises a third driving motor 13, and the third driving motor 13 is in transmission connection with the third wheel 23 and the fourth wheel 24 respectively.

[0147] The third driving motor 13 drives the second wheel 22 assembly, and cooperates with the first driving motor 11 and the second driving motor 12 to drive the first wheel 21 assembly, so as to form a three-motor driving assembly. Exemplarily, the first wheel 21 assembly is a front wheel, and the second wheel 22 assembly is a rear wheel. The third driving motor 13 independently working can realize front drive, the first driving motor 11 and the second driving motor 12 working can realize rear drive, and at least one of the first driving motor 11 and the second driving motor 12 cooperating with the first driving motor 11 working can realize four-wheel drive.

[0148] In some embodiments, the drive assembly 100 further includes a fifth on-off mechanism 35 disposed between the third wheel 23 and the third drive motor 13 . The fifth on-off mechanism 35 is configured to switch the transmission path between the third wheel 23 and the third drive motor 13 on / off.

[0149] It can be understood that the fifth on-off mechanism 35 connects the transmission path between the third wheel 23 and the third drive motor 13, and the power of the third drive motor 13 can be transmitted to the third wheel 23. When the third drive motor 13 is not needed to provide power, the fifth on-off mechanism 35 disconnects the transmission path between the third wheel 23 and the third drive motor 13, which can prevent the third wheel 23 from driving the third drive motor 13 to rotate. Therefore, the reverse drag force caused by the rotation of the third drive motor 13 can be avoided, which helps to reduce energy loss.

[0150] In some embodiments, the fifth on / off mechanism 35 is further provided between the fourth wheel 24 and the third drive motor 13 , and is further configured to perform on / off switching of the transmission path between the fourth wheel 24 and the third drive motor 13 .

[0151] It is understood that in this embodiment of the present application, the fifth on / off mechanism 35 can also connect or disconnect the transmission path between the second wheel 22 assembly and the third drive motor 13, eliminating the need to provide separate on / off mechanisms for the third wheel 23 and the fourth wheel 24. This arrangement can reduce the number of on / off mechanisms required and improve the integration of the drive assembly 100.

[0152] In some embodiments, the drive assembly 100 further includes a third reducer 43, through which the third drive motor 13 is respectively connected to the third wheel 23 and the fourth wheel 24. It is understood that the third drive motor 13 reduces speed and increases torque through the third reducer 43, thereby transmitting power to the third wheel 23 and the fourth wheel 24, respectively.

[0153] In some embodiments, the fifth on / off mechanism 35 is disposed between the third reducer 43 and the third drive motor 13 and is configured to perform on / off switching of the transmission path between the third reducer 43 and the third drive motor 13 .

[0154] The area between the drive motor and the reducer has a simple structure and can provide ample installation space. Therefore, the space between the third drive motor 13 and the third reducer 43 can be used to install the fifth on-off mechanism 35, and the fifth on-off mechanism 35 is not easy to interfere with other transmission components, which helps to reduce the difficulty of assembly and ensure the structural stability of the drive assembly 100.

[0155] Figure 4 The schematic diagram of the structure of the third reducer 43 provided in some embodiments of the present application is shown in FIG. Figure 4In some embodiments, the third speed reducer 43 comprises a fifth input gear 431 and a third output gear 432 which are engaged with each other, the fifth input gear 431 is in transmission connection with the output shaft of the third driving motor 13, and the third wheel 23 and the fourth wheel 24 are both in transmission connection with the third output gear 432. The fifth on-off mechanism 35 is arranged between the fifth input gear 431 and the third driving motor 13, and the fifth on-off mechanism 35 is configured to perform switching of the transmission path between the fifth input gear 431 and the third driving motor 13.

[0156] With reference to Figure 1 In some embodiments, the driving assembly 100 further comprises a differential 60 which is in transmission connection with the third output gear 432, and the third wheel 23 and the fourth wheel 24 are both in transmission connection with the differential 60. The differential 60 allows the third wheel 23 and the fourth wheel 24 to rotate at different speeds to meet the smooth turning of the wheels.

[0157] With reference to Figure 5 , Figure 5 The structural diagram of the on-off mechanism, the driving motor and the controller 50 of the driving assembly 100 provided for some embodiments of the present application, in some embodiments, the driving assembly 100 further comprises a controller 50 which is in signal connection with at least one on-off mechanism. The controller 50 can control the on-off mechanism to perform switching of the corresponding transmission path.

[0158] In the embodiment in which the on-off mechanism is an electromagnetic coupler, the controller 50 can control the electromagnetic coupler to perform switching of the transmission path by controlling the current supply of the electromagnetic coupler.

[0159] In some embodiments, the first on-off mechanism 31, the second on-off mechanism 32, the third on-off mechanism 33, the fourth on-off mechanism 34 and the fifth on-off mechanism 35 are all in signal connection with the controller 50. In this way, the controller 50 can uniformly regulate the working states of the on-off mechanisms to improve the stability of the driving assembly 100.

[0160] The controller 50 can be a PLC module, an integrated control unit, etc.

[0161] According to a second aspect of the present application, a driving assembly 100 control method is provided, which is applied to the above-mentioned driving assembly 100.

[0162] In some embodiments, with reference to Figure 6 , Figure 6 The flowchart of the driving assembly 100 control method provided for some embodiments of the present application, the method comprises:

[0163] S10, in response to the load working condition of the vehicle 1000, determining the driving mode;

[0164] S20 , controlling the driving assembly 100 to operate according to the driving mode to output power matching the load condition.

[0165] The load condition may be confirmed based on at least one of vehicle speed, throttle opening, speed of the currently operating drive motor, load weight, starting state, climbing state, and lateral yaw torque required.

[0166] Load conditions include low-load conditions, high-load conditions, and severe-load conditions. Low-load conditions include starting from a standstill and moving at low speeds. High-load conditions include turning, U-turns, and high-speed driving. Severe-load conditions include desert off-roading and high-speed drifting.

[0167] Controlling the operation of the drive assembly 100 can be done by activating some or all of the motors based on power requirements, while disabling the remaining motors, thereby saving energy. To reduce energy loss, an on / off mechanism can be controlled to open and close the transmission paths between the drive motors and the corresponding wheels. Specifically, the transmission paths can be connected or disconnected as needed.

[0168] In some embodiments, controlling the operation of the drive assembly 100 according to the drive mode to output power matching the load condition includes:

[0169] S21. Determine a driving mode based on the load condition and a correspondence table, wherein the correspondence table includes correspondences between different load conditions and different driving modes.

[0170] In some embodiments, the drive assembly 100 is a three-motor drive assembly 100 , and an example of the correspondence table is as follows:

[0171] Load conditions Drive Mode Low load conditions Controlling a motor drive High load conditions Control two motor drives Severe load conditions Control three motor drives

[0172] In some embodiments, the first drive motor 11 and the second drive motor 12 are arranged corresponding to the rear wheels, and the third drive motor 13 is arranged corresponding to the front wheels. Under different load conditions, the driving modes can be as follows:

[0173] Exemplarily, the vehicle 1000 is in a low-load condition, such as starting from a standstill, and the driving mode is: controlling the first drive motor 11 to work, controlling the fifth on-off mechanism 35 to switch to a connected state, controlling the first drive motor 11 and the second drive motor 12 to not work, and controlling the first on-off mechanism 31, the second on-off mechanism 32, the third on-off mechanism 33 and the fourth on-off mechanism 34 to switch to a disconnected state.

[0174] Exemplarily, the vehicle 1000 is in a low-load operating condition, such as moving forward at a low speed, and the driving mode is: controlling the third drive motor 13 not to work, controlling the fifth on-off mechanism 35 to switch to the disconnected state, controlling one of the first drive motor 11 and the second drive motor 12 to work, for example, controlling the first drive motor 11 to work and the second drive motor 12 not to work, the first on-off mechanism 31 and the second on-off mechanism 32 to switch to the connected state, and the third on-off mechanism 33 and the fourth on-off mechanism 34 to switch to the disconnected state.

[0175] Exemplarily, the vehicle 1000 is in a high-load operating condition, such as turning or making a U-turn, and the driving mode is: controlling the third drive motor 13 not to work, controlling the fifth on-off mechanism 35 to switch to the disconnected state, controlling the first drive motor 11 and the second drive motor 12 to work, controlling the second on-off mechanism 32 and the third on-off mechanism 33 to switch to the connected state, and controlling the first on-off mechanism 31 and the fourth on-off mechanism 34 to switch to the disconnected state.

[0176] Exemplarily, the vehicle 1000 is in a high-load working condition, such as turning or making a U-turn, and the driving mode is: controlling the third drive motor 13 to work, controlling the fifth on-off mechanism 35 to switch to a connected state, controlling one of the first drive motor 11 and the second drive motor 12, for example, driving the second drive motor 12 to work and the first drive motor 11 not to work, controlling the first on-off mechanism 31 and the second on-off mechanism 32 to switch to a disconnected state, and controlling the third on-off mechanism 33 and the fourth on-off mechanism 34 to switch to a connected state.

[0177] For example, when vehicle 1000 is in a severe load condition, such as desert off-roading or high-speed drifting, the driving mode is as follows: the third drive motor 13 is activated, the fifth on / off mechanism 35 is switched to the connected state, the first and second drive motors 11 and 12 are both activated, the second and third on / off mechanisms 32 and 33 are switched to the connected state, and the first and fourth on / off mechanisms 31 and 34 are switched to the disconnected state. This mode is suitable for situations with high torque demands or high-speed acceleration.

[0178] According to a third aspect of the present application, a non-volatile storage medium is provided, which stores computer-readable instructions. The computer-readable instructions are called by the processor 210 to implement the above-mentioned control method of the drive assembly 100.

[0179] Since the storage medium can implement the above-mentioned control method of the drive assembly 100, it has all the beneficial effects of the control method of the drive assembly 100, which will not be described in detail here.

[0180] According to a fourth aspect of the present application, a computer program product is provided, which includes a computer program. When the computer program runs on the electronic device 200, the electronic device 200 executes the above-mentioned drive assembly 100 control method.

[0181] Since the computer program product can enable the electronic device 200 to execute the above-mentioned drive assembly 100 control method, it has all the beneficial effects of the drive assembly 100 control method, which will not be repeated here.

[0182] It can be understood that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. For purposes of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The processors involved in the various embodiments provided herein may be general-purpose processors, central processing units (CPUs), graphics processors (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), data processing logic devices based on quantum computing, and the like, without limitation thereto.

[0183] Figure 7 A structural block diagram of an electronic device 200 is provided for some embodiments of the present application. According to the fifth aspect of the present application, an electronic device 200 is provided, including a memory 220 and a processor 210, the memory 220 stores computer-readable instructions, and the processor 210 is used to call the computer-readable instructions to implement the above-mentioned drive assembly 100 control method.

[0184] Since the electronic device 200 can implement the above-mentioned control method of the drive assembly 100, it has all the beneficial effects of the control method of the drive assembly 100, which will not be described in detail here.

[0185] Reference Figure 8 , Figure 8 A structural block diagram of a vehicle 1000 is provided for some embodiments of the present application. According to the sixth aspect of the present application, a vehicle 1000 is provided, and the vehicle 1000 executes the above-mentioned drive assembly 100 control method, or includes the above-mentioned drive assembly 100, or includes the above-mentioned electronic device 200.

[0186] The vehicle 1000 may be a plug-in hybrid vehicle, a new energy vehicle, etc., and this disclosure does not specifically limit this.

[0187] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0188] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0189] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0190] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A drive assembly, characterized in that: For transmitting power to a first wheel assembly, the wheel assembly includes a first wheel and a second wheel arranged opposite to each other, and the drive assembly includes: a first drive motor, drivingly connected to the first wheel and the second wheel respectively; a second drive motor, drivingly connected to the first wheel and the second wheel respectively; An on-off mechanism is provided between at least one of the first drive motor and the second drive motor and at least one of the first wheel and the second wheel, and the on-off mechanism is configured to perform on / off switching of the transmission path between the corresponding drive motor and the wheel.

2. The drive assembly according to claim 1, characterized in that: The drive assembly further includes: a first on-off mechanism, disposed between the first wheel and the first drive motor, the first on-off mechanism being configured to switch on / off a transmission path between the first wheel and the first drive motor; The second on-off mechanism is provided between the second wheel and the first drive motor, and is configured to perform on / off switching of the transmission path between the second wheel and the first drive motor.

3. The drive assembly according to claim 2, characterized in that: The drive assembly further includes: a third on-off mechanism, disposed between the first wheel and the second drive motor, the third on-off mechanism being configured to switch on / off the transmission path between the first wheel and the second drive motor, the operating state of the third on-off mechanism being configured to be opposite to the operating state of the first on-off mechanism; A fourth on-off mechanism is arranged between the second wheel and the second drive motor. The fourth on-off mechanism is configured to perform on / off switching of the transmission path between the second wheel and the second drive motor. The working state of the fourth on-off mechanism is configured to be opposite to the working state of the second on-off mechanism.

4. The drive assembly according to claim 3, characterized in that: The drive assembly further includes: a first reducer, wherein the first drive motor is connected to the first wheel through the first reducer, and the second drive motor is connected to the first wheel through the first reducer; and / or A second reducer, the first drive motor is connected to the second wheel through the second reducer, and the second drive motor is connected to the second wheel through the second reducer.

5. The drive assembly according to claim 4, characterized in that: The first on-off mechanism is provided between the first drive motor and the first reducer; and / or, The second on-off mechanism is provided between the first drive motor and the second reducer; and / or, The third on-off mechanism is provided between the second drive motor and the first reducer; and / or, The fourth on-off mechanism is arranged between the second drive motor and the second reducer.

6. The drive assembly according to claim 4, characterized in that: The first reducer has a first input end and a second input end, the first input end is transmission-connected to the first drive motor, and the second input end is transmission-connected to the second drive motor; The first drive motor outputs a first transmission ratio through the first reducer, and the second drive motor outputs a second transmission ratio through the first reducer, and the second transmission ratio is the same as the first transmission ratio.

7. The drive assembly according to claim 6, characterized in that: The second reducer has a third input end and a fourth input end, the third input end is transmission-connected to the first drive motor, and the fourth input end is transmission-connected to the second drive motor; The first drive motor outputs a third transmission ratio through the second reducer, and the second drive motor outputs a fourth transmission ratio through the second reducer. The first transmission ratio, the second transmission ratio, the third transmission ratio and the fourth transmission ratio are the same.

8. The drive assembly according to claim 6, characterized in that: The second reducer has a third input end and a fourth input end; The first drive motor outputs a third transmission ratio through the second reducer, and the second drive motor outputs a fourth transmission ratio through the second reducer. The fourth transmission ratio is the same as the second transmission ratio but different from the third transmission ratio.

9. The drive assembly according to claim 4, characterized in that: The first reducer includes a first input gear and a first output gear, the first input gear is in driving connection with the first drive motor, the first output gear is in driving connection with the first wheel, and the first on-off mechanism is arranged between the first input gear and the first output gear; and / or, The first reducer includes a second input gear and a first output gear, the second input gear is in driving connection with the second drive motor, the first output gear is in driving connection with the first wheel, and the third on-off mechanism is arranged between the second input gear and the first output gear; and / or, The second reducer includes a third input gear and a second output gear, the third input gear is in driving connection with the first drive motor, the second output gear is in driving connection with the second wheel, and the second on-off mechanism is arranged between the third input gear and the second output gear; and / or, The second reducer includes a fourth input gear and a second output gear. The fourth input gear is in transmission connection with the second drive motor. The second output gear is in transmission connection with the second wheel. The fourth on-off mechanism is arranged between the fourth input gear and the second output gear.

10. The drive assembly according to claim 4, characterized in that: The second reducer includes a third input gear, a first transmission gear, a second transmission gear and a second output gear. The third input gear is in transmission connection with the first drive motor, the second output gear is in transmission connection with the second wheel, the first transmission gear is engaged with the third input gear, the second transmission gear is engaged with the second output gear, and the first transmission gear and the second transmission gear are coaxially arranged and in transmission connection.

11. The drive assembly according to claim 10, characterized in that: The second on-off mechanism is provided between the first transmission tooth member and the second transmission tooth member, and is configured to perform on / off switching of the transmission path between the first transmission tooth member and the second transmission tooth member.

12. The drive assembly according to claim 10, characterized in that: The second reducer also includes a fourth input tooth member, a third transmission tooth member and a fourth transmission tooth member. The fourth input tooth member is in transmission connection with the second drive motor, the third transmission tooth member is engaged with the fourth input tooth member, and the fourth transmission tooth member is engaged with the second output tooth member. The third transmission tooth member and the fourth transmission tooth member are coaxially arranged and in transmission connection.

13. The drive assembly according to claim 12, characterized in that: The fourth on-off mechanism is provided between the fourth input gear and the second drive motor, and is configured to perform on / off switching of the transmission path between the fourth input gear and the second drive motor.

14. The drive assembly according to claim 4, characterized in that: The first reducer includes a first input gear, a second input gear, a fifth transmission gear, a sixth transmission gear and a first output gear. The first input gear is transmission-connected to the first drive motor, the second input gear is transmission-connected to the second drive motor, the first output gear is transmission-connected to the first wheel, the first input gear and the second input gear are both engaged with the fifth transmission gear, and the fifth transmission gear is coaxially arranged and transmission-connected to the sixth transmission gear.

15. The drive assembly according to claim 14, characterized in that: The first on-off mechanism is provided between the first input gear and the first drive motor, and is configured to perform on / off switching of the transmission path between the first input gear and the first drive motor; and / or, The third on-off mechanism is provided between the second input gear and the second drive motor, and is configured to perform on / off switching of the transmission path between the second input gear and the second drive motor.

16. The drive assembly according to any one of claims 1 to 15, characterized in that: The drive assembly is further configured to transmit power to a second wheel assembly, wherein the second wheel assembly includes a third wheel and a fourth wheel disposed opposite to each other. The drive assembly further includes: The third drive motor is transmission-connected to the third wheel and the fourth wheel respectively.

17. The drive assembly according to claim 16, characterized in that: The first wheel assembly is a rear wheel, and the second wheel assembly is a front wheel.

18. The drive assembly according to claim 16, wherein: The drive assembly further includes: The fifth on-off mechanism is provided between the third wheel and the third drive motor and is configured to perform on / off switching of the transmission path between the third wheel and the third drive motor.

19. The drive assembly according to claim 18, characterized in that: The fifth on-off mechanism is further provided between the fourth wheel and the third drive motor, and is further configured to perform on / off switching of the transmission path between the fourth wheel and the third drive motor.

20. The drive assembly according to claim 19, wherein: The drive assembly further includes: A third reducer, wherein the third drive motor is respectively connected to the third wheel and the fourth wheel through the third reducer.

21. The drive assembly according to claim 20, characterized in that: The fifth on-off mechanism is provided between the third speed reducer and the third drive motor, and is configured to perform on / off switching of the transmission path between the third speed reducer and the third drive motor.

22. The drive assembly according to any one of claims 1 to 21, characterized in that: The drive assembly further includes: A controller is signal-connected to at least one of the on-off mechanisms.

23. A drive assembly control method, characterized in that: Applied to the drive assembly according to any one of claims 1 to 22, the method comprises: determining a driving mode in response to a load condition of the vehicle; The drive assembly is controlled to operate according to the drive mode to output power that matches the load condition.

24. The drive assembly control method according to claim 23, characterized in that: Controlling the drive assembly to operate according to the drive mode to output power matching the load condition includes: The driving mode is determined based on the load condition and a correspondence table, wherein the correspondence table includes correspondences between different load conditions and different driving modes.

25. A non-volatile storage medium, characterized in that: Computer-readable instructions are stored, and the computer-readable instructions are called by a processor to implement the drive assembly control method described in claim 23 or 24.

26. A computer program product, characterized in that The computer program product includes a computer program, and when the computer program is run on an electronic device, the electronic device executes the drive assembly control method according to claim 23 or 24.

27. An electronic device, characterized in that: It includes a memory and a processor, the memory stores computer-readable instructions, and the processor is used to call the computer-readable instructions to implement the drive assembly control method described in claim 23 or 24.

28. A vehicle, characterized in that: The vehicle executes the drive assembly control method described in claim 23 or 24, or includes the drive assembly described in any one of claims 1 to 22, or includes the electronic device described in claim 27.

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