Hybrid vehicle

Abstract

The invention discloses a hybrid electric vehicle which comprises a vehicle body, a wheel assembly and a driving mechanism, the wheel assembly is movably connected with the vehicle body, and the driving mechanism comprises a battery, a range extender assembly, a motor assembly, a first-stage gear assembly, a second-stage gear assembly, a transmission assembly, a differential mechanism assembly and a coupling and disconnecting assembly. The battery is electrically connected with the range extender assembly and the motor assembly, the motor assembly is in transmission connection with the first-stage gear assembly, the first-stage gear assembly is in transmission connection with the input part of the coupling and disconnecting assembly, the output part of the coupling and disconnecting assembly is in transmission connection with the second-stage gear assembly, and the output end of the coupling and disconnecting assembly is in transmission connection with the transmission assembly. The transmission assembly is in transmission connection with the differential assembly, and the secondary gear assembly and the differential assembly are in transmission connection with the wheel assembly. According to the invention, the functions of extended-range distributed electric driving and extended-range centralized electric driving can be realized, so that sufficient safety redundancy can be realized while various driving modes are selected.

Description

Technical Field

[0001] The present application relates to the technical field of the automotive industry, and in particular to a hybrid vehicle. Background Art

[0002] New energy vehicles have experienced rapid and substantial development amidst increasing demands for energy conservation and environmental protection. Their powertrains have also flourished, with the emergence of various types, including battery electric vehicles (BEVs), hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), extended-range electric vehicles (EREVs), and fuel cell electric vehicles (FCEVs). Currently, most extended-range electric vehicles (EREVs) utilize a range-extending system to replenish battery power for extended driving, enabling the drive motor to achieve centralized vehicle propulsion via a reduction mechanism. Few systems offer distributed drive capabilities, and those that do have limitations in terms of battery life and range. Furthermore, existing distributed drive systems lack safety redundancy. Summary of the Invention

[0003] In order to effectively overcome the problems existing in the above-mentioned prior art, the main purpose of this application is to provide a hybrid electric vehicle that can realize extended-range distributed electric drive and extended-range centralized electric drive functions and has more safety redundancy.

[0004] In order to achieve the above objectives, this application specifically adopts the following technical solutions: The present application provides a hybrid electric vehicle, comprising: body; a wheel assembly, the wheel assembly being movably connected to the vehicle body; and A drive mechanism, the drive mechanism includes a battery, a range extender assembly, a motor assembly, a primary gear assembly, a secondary gear assembly, a transmission assembly, a differential assembly and a coupling and disconnection assembly, the range extender assembly is electrically connected to the battery, the battery is electrically connected to the motor assembly, the motor assembly is transmission-connected to the primary gear assembly, the primary gear assembly is transmission-connected to the input part of the coupling and disconnection assembly, the output part of the coupling and disconnection assembly is transmission-connected to the secondary gear assembly, the secondary gear assembly is transmission-connected to the wheel assembly, the output end of the coupling and disconnection assembly is transmission-connected to the transmission assembly, the transmission assembly is transmission-connected to the differential assembly, and the differential assembly is transmission-connected to the wheel assembly.

[0005] In some embodiments, the wheel assembly includes a first wheel and a second wheel, the motor assembly includes a first motor and a second motor, the primary gear assembly includes a first primary gear set and a second primary gear set, the secondary gear assembly includes a first secondary gear set and a second secondary gear set, the transmission assembly includes a first transmission set, the coupling-disconnection assembly includes a first coupling-disconnection element and a second coupling-disconnection element, and the differential assembly includes a first differential set; The battery is electrically connected to the first motor, the first motor is drivingly connected to the first primary gear set, the first primary gear set is drivingly connected to the first input portion of the first coupling / disconnecting element, the first output portion of the first coupling / disconnecting element is drivingly connected to the first secondary gear set, and the first secondary gear set is drivingly connected to the first wheel; The battery is electrically connected to the second motor, the second motor is drivingly connected to the second primary gear set, the second primary gear set is drivingly connected to the second input portion of the second coupling / disconnection element, the second output portion of the second coupling / disconnection element is drivingly connected to the second secondary gear set, and the second secondary gear set is drivingly connected to the second wheel; The first output end of the first coupling disconnect element and the second output end of the second coupling disconnect element are both drivingly connected to the first transmission group, the first transmission group is drivingly connected to the first differential group, and the first differential group is drivingly connected to the first wheel and the second wheel.

[0006] In some embodiments, the wheel assembly includes a third wheel and a fourth wheel, the motor assembly includes a third motor and a fourth motor, the primary gear assembly includes a third primary gear set and a fourth primary gear set, the secondary gear assembly includes a third secondary gear set and a fourth secondary gear set, the transmission assembly includes a second transmission set, the coupling-disconnection assembly includes a third coupling-disconnection element and a fourth coupling-disconnection element, and the differential assembly includes a second differential set; The battery is electrically connected to the third motor, the third motor is drivingly connected to the third primary gear set, the third primary gear set is drivingly connected to the third input portion of the third coupling / disconnection element, the third output portion of the third coupling / disconnection element is drivingly connected to the third secondary gear set, and the third secondary gear set is drivingly connected to the third wheel; The battery is electrically connected to the fourth motor, the fourth motor is drivingly connected to the fourth primary gear set, the fourth primary gear set is drivingly connected to the fourth input portion of the fourth coupling / disconnecting element, the fourth output portion of the fourth coupling / disconnecting element is drivingly connected to the fourth secondary gear set, and the fourth secondary gear set is drivingly connected to the fourth wheel; The third output end of the third coupling-disconnecting element and the fourth output end of the fourth coupling-disconnecting element are both drivingly connected to the second transmission group, the second transmission group is drivingly connected to the second differential group, and the second differential group is drivingly connected to the third wheel and the fourth wheel.

[0007] In some embodiments, the first differential group includes a first differential and a first differential lock, the first differential is drivingly connected to the first transmission group, and the first differential is also drivingly connected to the first wheel and the second wheel, and the first differential lock is drivingly connected to the first differential.

[0008] In some embodiments, the second differential group includes a second differential and a second differential lock, the second differential is drivingly connected to the second transmission group, and the second differential is drivingly connected to the third wheel and the fourth wheel, and the second differential lock is drivingly connected to the second differential.

[0009] In some embodiments, the first coupling-disconnecting element includes a first sliding portion. When the first sliding portion moves to a first position, the first primary gear set is transmission-connected with the first secondary gear set. When the first sliding portion moves to a second position, the first primary gear set is transmission-connected with the first transmission set.

[0010] In some embodiments, the second coupling-disconnection element includes a second sliding portion. When the second sliding portion is in a first position, the second primary gear set is transmission-connected to the second secondary gear set. When the second sliding portion moves to a second position, the second primary gear set is transmission-connected to the first transmission set.

[0011] In some embodiments, the third coupling and disconnecting element includes a third sliding part. When the third sliding part is in the first position, the third primary gear set is transmission-connected with the third secondary gear set. When the third sliding part moves to the second position, the third primary gear set is transmission-connected with the second transmission group.

[0012] In some embodiments, the fourth coupling-disconnection element includes a fourth sliding part. When the fourth sliding part is in the first position, the fourth primary gear set is transmission-connected with the fourth secondary gear set. When the fourth sliding part moves to the second position, the fourth primary gear set is transmission-connected with the second transmission group.

[0013] In some embodiments, the range extender assembly includes an engine, a torque damper, and a fifth motor, wherein the engine is transmission-connected to the torque damper, the torque damper is transmission-connected to the fifth motor, and the fifth motor is electrically connected to the battery.

[0014] The hybrid electric vehicle of the present application includes a body, a wheel assembly, and a drive mechanism. The wheel assembly is movably connected to the body. The drive mechanism includes a battery, a range extender assembly, a motor assembly, a primary gear assembly, a secondary gear assembly, a transmission assembly, a differential assembly, and a coupling / disconnection assembly. The range extender assembly is electrically connected to the battery, the battery is electrically connected to the motor assembly, the motor assembly is transmission-connected to the primary gear assembly, the primary gear assembly is transmission-connected to the input portion of the coupling / disconnection assembly, the output portion of the coupling / disconnection assembly is transmission-connected to the secondary gear assembly, the secondary gear assembly is transmission-connected to the wheel assembly, the output end of the coupling / disconnection assembly is transmission-connected to the transmission assembly, the transmission assembly is transmission-connected to the differential assembly, and the differential assembly is transmission-connected to the wheel assembly. Compared to the prior art, the present application can implement both extended-range distributed electric drive and extended-range centralized electric drive functions, thereby providing a variety of drive mode options while having sufficient safety redundancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the drive mechanism of the hybrid vehicle provided in an embodiment of the present application.

[0016] Figure 2 for Figure 1 A partial diagram of the drive mechanism.

[0017] Figure 3 for Figure 1 Another partial view of the drive mechanism in .

[0018] Figure 4 This is a structural schematic diagram of the first sliding portion of the first coupling / disconnection element provided in an embodiment of the present application when it is in the third position.

[0019] Figure 5 This is a structural schematic diagram of the first sliding portion of the first coupling / disconnection element provided in an embodiment of the present application when it is in the first position.

[0020] Figure 6 This is a structural schematic diagram of the first sliding portion of the first coupling / disconnection element provided in an embodiment of the present application when it is in the second position.

[0021] Figure 7 This is a structural schematic diagram of the second sliding portion of the second coupling / disconnection element provided in an embodiment of the present application when it is in the third position.

[0022] Figure 8 This is a structural schematic diagram of the second sliding portion of the second coupling / disconnection element provided in an embodiment of the present application when it is in the second position.

[0023] Figure 9 This is a structural schematic diagram of the second sliding portion of the second coupling / disconnection element provided in an embodiment of the present application when it is in the first position.

[0024] Figure 10 This is a structural schematic diagram of the first differential lock of the first differential group provided in an embodiment of the present application in a disconnected state.

[0025] Figure 11 This is a structural schematic diagram of the first differential lock of the first differential group provided in an embodiment of the present application in a coupled state.

[0026] Figure ID: 1. Battery; 2. Range extender assembly; 21. Engine; 22. Torque damper; 23. Fifth motor; 3. Motor assembly; 31. First motor; 32. Second motor; 33. Third motor; 34. Fourth motor; 4. Primary gear assembly; 41. First primary gear set; 42. Second primary gear set; 43. Third primary gear set; 44. Fourth primary gear set; 5. Secondary gear assembly; 51. First secondary gear set; 52. Second secondary gear set; 53. Secondary gear set 3; 54, secondary gear set 4; 6, transmission assembly; 61, first transmission group; 62, second transmission group; 7, differential assembly; 71, first differential group; 711, first differential; 712, first differential lock; 72, second differential group; 721, second differential; 722, second differential lock; 8, coupling / discoupling assembly; 100, wheel assembly; 101, first wheel; 102, second wheel; 103, third wheel; 104, fourth wheel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] In the description of this application, unless otherwise specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described from the perspectives shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also indirectly connected to the other element "on" or "under" through an intermediate element.

[0030] In the related art, due to the design of the drive system architecture, for example, the pure electric drive architecture that realizes the vehicle's distributed drive function is more complex than the ordinary pure electric drive system architecture and there are few designs. Therefore, most existing extended-range electric drive systems (EREVs) cannot realize the vehicle's distributed drive function. At the same time, most existing distributed drive systems are based on the design of pure electric endurance vehicles, and the design of electric drive systems for extended-range distributed drive is more complex. Therefore, the drive systems that can realize distributed drive are mostly pure electric drive systems, which have certain energy replenishment and endurance defects. In addition, the few electric drive systems for extended-range distributed drive have insufficient design considerations or overly complex designs in terms of functional diversity and safety redundancy. Therefore, the few extended-range electric drive systems (EREVs) that can realize distributed drive still have certain deficiencies in functional diversity and safety redundancy. Based on this, the inventors of this application propose a hybrid vehicle that aims to realize extended-range distributed electric drive and extended-range centralized electric drive functions on the basis of pure electric distributed drive, so as to realize a variety of drive mode options for the drive system while having more safety redundancy. The symmetrical design of the reduction gear mechanism with identical parameters and the differentiated selection of front and rear axle motors ensure excellent drive system dynamics while optimizing DHT costs. This also makes the drive system more adaptable and scalable across multiple vehicle platforms.

[0031] An embodiment of the present application discloses a hybrid vehicle, which includes a body, a wheel assembly and a drive mechanism. The wheel assembly is movably connected to the body, the drive mechanism is arranged on the body, and the drive mechanism is connected to the wheel assembly for driving the wheel assembly to rotate to drive the vehicle to run.

[0032] Reference Figure 1As shown, the drive mechanism includes a battery 1, a range extender assembly 2, a motor assembly 3, a primary gear assembly 4, a secondary gear assembly 5, a transmission assembly 6, a differential assembly 7, and a coupling / disconnection assembly 8. The range extender assembly 2 is electrically connected to the battery 1 for generating electricity and storing electrical energy in the battery 1. The motor assembly 3 is electrically connected to the battery 1 and is also transmission-connected to the primary gear assembly 4 so that the motor assembly 3 can drive the primary gear assembly 4 to move. The primary gear assembly 4 is transmission-connected to the input portion of the coupling / disconnection assembly 8, and the output portion of the coupling / disconnection assembly 8 is transmission-connected to the secondary gear assembly 5, which is transmission-connected to the wheel assembly 100. The output end of the coupling / disconnection assembly 8 is transmission-connected to the transmission assembly 6, which is transmission-connected to the differential assembly 7, which is transmission-connected to the wheel assembly 100. The dotted lines in the figure represent wiring harnesses.

[0033] When driving the vehicle, the transmission connection state of the primary gear assembly 4, the secondary gear assembly 5, and the transmission assembly 6 can be controlled by the coupling disconnection assembly 8. When the primary gear assembly 4 and the secondary gear assembly 5 are in a transmission connection state, the primary gear assembly 4 can be driven by the motor assembly 3 to operate, which in turn drives the secondary gear assembly 5 to operate, thereby driving the wheel assembly 100 to operate. When the primary gear assembly 4 and the transmission assembly 6 are in a transmission connection state, the primary gear assembly 4 can be driven by the motor assembly 3 to operate, which in turn drives the transmission assembly 6 to operate, which in turn drives the differential assembly 7 to operate, thereby driving the wheel assembly 100 to operate. The differential assembly 7 can be used to enable each wheel in the wheel assembly 100 to rotate at a different speed.

[0034] In some embodiments, the range extender assembly 2 includes an engine 21, a torque damper 22 and a fifth motor 23. The engine 21 is transmission-connected to the torque damper 22, the torque damper 22 is transmission-connected to the fifth motor 23, and the fifth motor 23 is electrically connected to the battery 1.

[0035] Continue to refer to Figure 1As shown, the wheel assembly 100 includes a first wheel 101, a second wheel 102, a third wheel 103 and a fourth wheel 104; the motor assembly 3 includes a first motor 31, a second motor 32, a third motor 33 and a fourth motor 34; the first-stage gear assembly 4 includes a first first-stage gear set 41, a second first-stage gear set 42, a third first-stage gear set 43 and a fourth first-stage gear set 44; the second-stage gear assembly 5 includes a first second-stage gear set 51, a second second-stage gear set 52, a third second-stage gear set 53 and a fourth second-stage gear set 54; the transmission assembly 6 includes a first transmission group 61 and a second transmission group 62; the coupling-disconnection assembly includes a first coupling-disconnection element K1, a second coupling-disconnection element K2, a third coupling-disconnection element K3 and a fourth coupling-disconnection element K4; the differential assembly 7 includes a first differential group 71 and a second differential group 72.

[0036] Reference Figure 2 As shown, the first motor 31 and the second motor 32 are each electrically connected to the battery 1. The first motor 31 is in driving connection with the first primary gear set 41, which is in driving connection with the first input portion K12 of the first coupling / disconnecting element K1. The first output portion K11 of the first coupling / disconnecting element K1 is in driving connection with the first secondary gear set 51, which is in driving connection with the first wheel 101. The second motor 32 is in driving connection with the second primary gear set 42, which is in driving connection with the second input portion K22 of the second coupling / disconnecting element K2. The second output portion K21 of the second coupling / disconnecting element K2 is in driving connection with the second secondary gear set 52, which is in driving connection with the second wheel 102. The first output end K14 of the first coupling / disconnecting element K1 and the second output end K24 of the second coupling / disconnecting element K2 are both in driving connection with the first transmission set 61, which is in driving connection with the first differential set 71, which is in driving connection with the first wheel 101 and the second wheel 102, forming a front axle distributed drive system.

[0037] Reference Figure 3As shown, the third motor 33 and the fourth motor 34 are respectively electrically connected to the battery 1, and the third motor 33 is drivingly connected to the third primary gear set 43, which is drivingly connected to the third input portion K32 of the third coupling / disconnection element K3. The third output portion K31 of the third coupling / disconnection element K3 is drivingly connected to the third secondary gear set 53, which is drivingly connected to the third wheel 103. The fourth motor 34 is drivingly connected to the fourth primary gear set 44, which is drivingly connected to the fourth input portion K42 of the fourth coupling / disconnection element K4. The fourth output portion K41 of the fourth coupling / disconnection element K4 is drivingly connected to the fourth secondary gear set 54, which is drivingly connected to the fourth wheel 104. The third output end K34 of the third coupling-disconnection element K3 and the fourth output end K44 of the fourth coupling-disconnection element K4 are both connected to the second transmission group 62, the second transmission group 62 is connected to the second differential group 72, and the second differential group 72 is connected to the third wheel 103 and the fourth wheel 104, forming a rear axle distributed drive system.

[0038] In this embodiment, the first primary gear assembly 41 may include multiple gears, each of which is meshed with each other, and the diameters of the gears may be different. Similarly, the second primary gear assembly 42, the third primary gear assembly 43, the fourth primary gear assembly 44, the first secondary gear assembly 51, the second secondary gear assembly 52, the third secondary gear assembly 53, the fourth secondary gear assembly 54, the first transmission group 61, and the second transmission group 62 may also include multiple gears, each of which is meshed with each other, and the diameters of the gears may be different. For example, the first primary gear assembly 41 may include gear Z11 and gear Z12, gear Z11 and gear Z12 are meshed with each other, and the diameter of gear Z12 is larger than the diameter of gear Z11.

[0039] It should be noted that the front-axle distributed drive system and the rear-axle distributed drive system are distinguished solely by their placement. Their actual structures, designs, and component selections can be identical, completely different, partially identical, or partially different, depending on the space and performance requirements of the vehicle. For example, the first and second motors 31 and 32 can be arranged in parallel and coaxially (e.g., in a "line") or in parallel and off-axis (e.g., in a "two"). The first and second motors 31 and 32 can output from the same side or from different sides. The first and second primary gear sets 41 and 42 can be identical or different. The first and second secondary gear sets 51, 52, and first transmission set 61 can be identical or different. In some embodiments, the first and second secondary gear sets 51 and 52 are identical but different from the first transmission set 61. In this case, the first transmission set 61 constitutes one of the two selectable speed ratios for the first and second motors 31 and 32, achieving a two-speed reduction and torque-increasing function.

[0040] Continue to refer to Figure 2 and Figure 3 As shown, the first differential group 71 includes a first differential 711 and a first differential lock 712. The first differential 711 is drivingly connected to the first transmission group 61 and is also drivingly connected to the first wheel 101 and the second wheel 102. The first differential lock 712 is drivingly connected to the first differential 711. Similarly, the second differential group 72 includes a second differential 721 and a second differential lock 722. The second differential 721 is drivingly connected to the second transmission group 62 and is also drivingly connected to the third wheel 103 and the fourth wheel 104. The second differential lock 722 is drivingly connected to the second differential 721.

[0041] Continue to refer to Figure 2 and Figure 3As shown, the first decoupling element K1 further includes a first sliding portion K13, which is transmission-connected to the first input portion K12 of the first decoupling element K1 and is movable between a first position, a second position, and a third position. When the first sliding portion K13 moves to the first position, the first primary gear set 41 is transmission-connected to the first secondary gear set 51. When the first sliding portion K13 moves to the second position, the first primary gear set 41 is transmission-connected to the first transmission set 61. When the first sliding portion K13 moves to the third position, the first primary gear set 41 is de-transmission-connected to either the first secondary gear set 51 or the first transmission set 61. Similarly, the second decoupling element K2 further includes a second sliding portion K23, which is transmission-connected to the second input portion K22 of the second decoupling element K2 and is movable between a first position, a second position, and a third position. When the second slider K23 is in the first position, the second primary gear set 42 is in transmission connection with the second secondary gear set 52. When the second slider K23 moves to the second position, the second primary gear set 42 is in transmission connection with the first transmission set 61. The third coupling / disconnecting element K3 also includes a third slider K33, which is in transmission connection with the third input portion K32 of the third coupling / disconnecting element K3 and is movable between a first position, a second position, and a third position. When the third slider K33 is in the first position, the third primary gear set 43 is in transmission connection with the third secondary gear set 53. When the third slider K33 moves to the second position, the third primary gear set 43 is in transmission connection with the second transmission set 62. The fourth coupling / disconnecting element K4 also includes a fourth slider K43, which is in transmission connection with the fourth input portion K42 of the fourth coupling / disconnecting element K4 and is movable between a first position, a second position, and a third position. When the fourth sliding portion K43 is located at the first position, the fourth primary gear set 44 is transmission-connected to the fourth secondary gear set 54 ; when the fourth sliding portion K43 moves to the second position, the fourth primary gear set 44 is transmission-connected to the second transmission set 62 .

[0042] The following describes in detail the working modes of the first and second coupling disconnect elements K1 and K2 as an example. The working modes of the third and fourth coupling disconnect elements K3 and K4 are similar to those of the first and second coupling disconnect elements K1 and K2 and are not described in detail here.

[0043] Reference Figure 4 As shown, when the first sliding portion K13 of the first coupling disconnection element K1 is located at the third position ( Figure 4The control mode at this time is K12-K13, that is, the first input part K12 of the first coupling disconnection element K1 is only transmission-connected with the first sliding part K13 of the first coupling disconnection element K1.

[0044] Reference Figure 5 As shown, when the first sliding portion K13 of the first coupling disconnection element K1 is located at the first position ( Figure 5 ), the control mode at this time is K12-K13-K11, that is, the first input part K12 of the first coupling-off element K1 is transmission-connected with the first sliding part K13 of the first coupling-off element K1, and the first sliding part K13 is also transmission-connected with the first output part K11 of the first coupling-off element K1.

[0045] Reference Figure 6 As shown, when the first sliding portion K13 of the first coupling disconnection element K1 is located at the second position ( Figure 6 ), the control mode at this time is K12-K13-K14, that is, the first input part K12 of the first coupling-off element K1 is transmission-connected to the first sliding part K13 of the first coupling-off element K1, and the first sliding part K13 is also transmission-connected to the first output end of the first coupling-off element K1.

[0046] Reference Figure 7 As shown, when the second sliding portion K23 of the second coupling disconnection element K2 is located at the third position ( Figure 7 The middle position in the middle), the control mode at this time is K22-K23, that is, the second input part K22 of the second coupling disconnection element K2 is only transmission-connected with the second sliding part K23 of the second coupling disconnection element K2.

[0047] Reference Figure 8 As shown, when the second sliding portion K23 of the second coupling disconnection element K2 is located at the second position ( Figure 8 The left position in the figure), the control mode at this time is K22-K23-K24, that is, the second input part K22 of the second coupling-off element K2 is transmission-connected with the second sliding part K23 of the second coupling-off element K2, and the second sliding part K23 is also transmission-connected with the second output end K24 of the second coupling-off element K2.

[0048] Reference Figure 9 As shown, when the second sliding portion K23 of the second coupling disconnection element K2 is located at the first position ( Figure 9The control mode at this time is K22-K23-K21, that is, the second input part K22 of the second coupling-off element K22 is transmission-connected with the second sliding part K23 of the second coupling-off element K2, and the second sliding part K23 is also transmission-connected with the second output part K21 of the second coupling-off element K2.

[0049] A differential typically includes a differential case and half-shaft gears. The differential lock is used to control the coupling and disengagement of the differential case and the half-shaft gears. The working mode of the first differential group 71 is described in detail below. The working mode of the second differential group 72 is similar to that of the first differential group 71 and will not be repeated here.

[0050] Reference Figure 10 As shown, the differential case of the first differential 711 can be in driving connection with the first transmission group 61, the left side gear of the first differential 711 is in driving connection with the first wheel 101, and the right side gear of the first differential 711 is in driving connection with the second wheel 102. When the first differential lock 712 is in the disengaged state, the sliding end of the first differential lock 712 fixed to the differential case of the first differential 711 is in the first position ( Figure 10 At this time, the left side gear of the first differential 711 is disconnected from the differential case, but the right side gear of the first differential 711 is not restricted by the differential case and the first differential lock 712 and can rotate freely, so the first wheel 101 and the second wheel 102 rotate at different speeds.

[0051] Reference Figure 11 As shown, when the first differential lock 712 is in the coupled state, the sliding end of the first differential lock 712 fixedly connected to the differential housing of the first differential 711 is located at the second position ( Figure 11 At this time, the left side gear of the first differential 711 is coupled to the differential case, and the right side gear of the first differential 711 is restricted by the differential case and the first differential lock 712 and cannot rotate arbitrarily. It rotates with the rotation of the differential case, and the first wheel 101 and the second wheel 102 rotate at the same speed.

[0052] The following is a detailed description of the functions of each component: The function of the engine 21 is to convert the chemical energy of the fuel into mechanical energy, and as one of the power sources, provide torque and speed for the driving mechanism.

[0053] The function of the torque damper 22 is to reduce the torsional vibration of the crankshaft of the engine 21, transmit and attenuate the torque fluctuation of the power of the engine 21, and reduce the vibration and noise of the entire vehicle.

[0054] The first motor 31 , the second motor 32 , the third motor 33 and the fourth motor 34 all function to convert electrical energy into mechanical energy or convert mechanical energy into electrical energy.

[0055] The function of the first differential lock 712 and the second differential lock 722 is to mechanically couple or disconnect the left and right wheels. When coupled, they ensure that the power output of the wheels on both sides is synchronized to prevent power loss, thereby improving the ability of the wheel end to escape from trouble.

[0056] The first differential 711 and the second differential 721 function to transmit power to two output ends in opposite directions, while achieving differential speed between the two input ends.

[0057] The function of the first coupling and disconnecting element K1 is to realize the deceleration path selection of the power transmission of the first motor 31 while realizing the transmission of the power of the first motor 31 to the next level, that is, the power of the first motor 31 is transmitted to the first secondary gear set 51 or the power of the first motor 31 is transmitted to the first transmission group 61.

[0058] The function of the second coupling and disconnecting element K2 is to realize the deceleration path selection of the power transmission of the second motor 32 while realizing the transmission of the power of the second motor 32 to the next level, that is, the power of the second motor 32 is transmitted to the second secondary gear set 52 or the power of the second motor 32 is transmitted to the first transmission group 61.

[0059] The function of the third coupling and disconnecting element K3 is to realize the deceleration path selection of the power transmission of the third motor 33 while realizing the transmission of the power of the third motor 33 to the next level, that is, the power of the third motor 33 is transmitted to the third secondary gear set 53 or the power of the third motor 33 is transmitted to the second transmission group 62.

[0060] The function of the fourth coupling and disconnecting element K4 is to realize the deceleration path selection of the power transmission of the fourth motor 34 while realizing the transmission of the power of the fourth motor 34 to the next level, that is, the power of the fourth motor 34 is transmitted to the fourth secondary gear set 54 or the power of the fourth motor 34 is transmitted to the second transmission group 62.

[0061] The functions of the first wheel 101 , the second wheel 102 , the third wheel 103 and the fourth wheel 104 are to achieve effective transmission of power between the power system and the ground.

[0062] It should be noted that the symbols XXXX-YY-MN can be used to represent each drive mode, wherein X refers to the motor name, the first Y is 1, indicating a front axle distributed drive, the first Y is 0, indicating a front axle centralized drive, the second Y is 1, indicating a rear axle distributed drive, the second Y is 0, indicating a rear axle centralized drive, M is 1, indicating that the first differential lock is in a coupled state, M is 0, indicating that the first differential lock is in a disconnected state, N is 1, indicating that the second differential lock is in a coupled state, and N is 0, indicating that the second differential lock is in a disconnected state. In the following, D0 is used to represent the first differential lock; D01 represents the second differential lock. The following describes the various drive modes of the drive mechanism in detail: (1) Pure electric four-motor distributed four-wheel drive mode 1234-11-0-0 The first motor, the second motor, the third motor, and the fourth motor are all driven by current, and the fifth motor does not work; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0063] (2) Pure electric four-motor distributed four-wheel drive mode 1234-11-0-1 The first motor, the second motor, the third motor, and the fourth motor are all driven by current, and the fifth motor does not work; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-coupled.

[0064] (3) Pure electric four-motor distributed four-wheel drive mode 1234-11-1-0 The first motor, the second motor, the third motor, and the fourth motor are all driven by current, and the fifth motor does not work; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-coupling, D01-disconnecting.

[0065] (4) Pure electric four-motor distributed four-wheel drive mode 1234-11-1-1 The first motor, the second motor, the third motor, and the fourth motor are all driven by current, and the fifth motor does not work; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-coupling, D01-coupling.

[0066] (5) Pure electric four-motor centralized four-wheel drive mode 1234-00-0-0 The first motor, the second motor, the third motor, and the fourth motor are all driven by current, and the fifth motor does not work; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-disconnect.

[0067] (6) Pure electric four-motor centralized four-wheel drive mode 1234-00-0-1 The first motor, the second motor, the third motor, and the fourth motor are all driven by current, and the fifth motor does not work; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-coupled.

[0068] (7) Pure electric four-motor centralized four-wheel drive mode 1234-00-1-0 The first motor, the second motor, the third motor, and the fourth motor are all driven by current, and the fifth motor does not work; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-coupling, D01-disconnecting.

[0069] (8) Pure electric four-motor centralized four-wheel drive mode 1234-00-1-1 The first motor, the second motor, the third motor, and the fourth motor are all driven by current; the fifth motor does not work; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-coupling, D01-coupling.

[0070] (9) Pure electric three-motor front centralized rear distributed four-wheel drive mode 134-01-0-0 The first motor, the third motor, and the fourth motor are all driven by current; the second motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0071] (10) Pure electric three-motor front centralized rear distributed four-wheel drive mode 134-01-0-1 The first motor, the third motor, and the fourth motor are all driven by current; the second motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-coupled.

[0072] (11) Pure electric three-motor front centralized rear distributed four-wheel drive mode 134-01-1-0 The first motor, the third motor, and the fourth motor are all driven by current; the second motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-coupling, D01-disconnecting.

[0073] (12) Pure electric three-motor front centralized rear distributed four-wheel drive mode 134-01-1-1 The first motor, the third motor, and the fourth motor are all driven by current; the second motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-coupling, D01-coupling.

[0074] (13) Pure electric three-motor front centralized rear distributed four-wheel drive mode 234-01-0-0 The second motor, the third motor, and the fourth motor are all driven by current; the first motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0075] (14) Pure electric three-motor front centralized rear distributed four-wheel drive mode 234-01-0-1 The second motor, the third motor, and the fourth motor are all driven by current; the first motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-coupled.

[0076] (15) Pure electric three-motor front centralized rear distributed four-wheel drive mode 234-01-1-0 The second motor, the third motor, and the fourth motor are all driven by current; the first motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-coupling, D01-disconnecting.

[0077] (16) Pure electric three-motor front centralized rear distributed four-wheel drive mode 234-01-1-1 The second motor, the third motor, and the fourth motor are all driven by current; the first motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-coupling, D01-coupling.

[0078] (17) Pure electric three-motor front distributed rear centralized four-wheel drive mode 123-10-0-0 The first motor, the second motor, and the third motor are all driven by current; the fourth motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0079] (18) Pure electric three-motor front distributed rear centralized four-wheel drive mode 123-10-0-1 The first motor, the second motor, and the third motor are all driven by current; the fourth motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-disconnect, D01-couple.

[0080] (19) Pure electric three-motor front distributed rear centralized four-wheel drive mode 123-10-1-0 The first motor, the second motor, and the third motor are all driven by current; the fourth motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-coupling, D01-disconnecting.

[0081] (20) Pure electric three-motor front distributed rear centralized four-wheel drive mode 123-10-1-1 The first motor, the second motor, and the third motor are all driven by current to work; the fourth motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-coupling, D01-coupling.

[0082] (21) Pure electric three-motor front distributed rear centralized four-wheel drive mode 124-10-0-0: The first motor, the second motor, and the fourth motor are all driven by current to work; the third motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0083] (22) Pure electric three-motor front distributed rear centralized four-wheel drive mode 124-10-0-1 The first motor, the second motor, and the fourth motor are all driven by current; the third motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-disconnect, D01-coupled.

[0084] (23) Pure electric three-motor front distributed rear centralized four-wheel drive mode 124-10-1-0 The first motor, the second motor, and the fourth motor are all driven by current; the third motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-coupling, D01-disconnecting.

[0085] (24) Pure electric three-motor front distributed rear centralized four-wheel drive mode 124-10-1-1 The first motor, the second motor, and the fourth motor are all driven by current; the third motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-coupling, D01-coupling.

[0086] (25) Pure electric three-motor fully centralized four-wheel drive mode 134-00-0-0: The first motor, the third motor, and the fourth motor are all driven by current; the second motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-disconnect.

[0087] (26) Pure electric three-motor fully centralized four-wheel drive mode 134-00-0-1 The first motor, the third motor, and the fourth motor are all driven by current; the second motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-D0-coupled.

[0088] (27) Pure electric three-motor fully centralized four-wheel drive mode 134-00-1-0 The first motor, the third motor, and the fourth motor are all driven by current; the second motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-coupling, D01-disconnecting.

[0089] (28) Pure electric three-motor fully centralized four-wheel drive mode 134-00-1-1 The first motor, the third motor, and the fourth motor are all driven by current; the second motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-coupling, D01-coupling.

[0090] (29) Pure electric dual-motor centralized four-wheel drive mode 13-00-0-0 The first motor and the third motor are both driven by current; the second motor, the fourth motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0091] (30) Pure electric dual-motor centralized four-wheel drive mode 13-00-0-1 The first motor and the third motor are both driven by current; the second motor, the fourth motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-disconnect, D01-couple.

[0092] (31) Pure electric dual-motor centralized four-wheel drive mode 13-00-1-0 The first motor and the third motor are both driven by current; the second motor, the fourth motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-coupling, D01-disconnecting.

[0093] (32) Pure electric dual-motor centralized four-wheel drive mode 13-00-1-1 The first motor and the third motor are both driven by current; the second motor, the fourth motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-coupling, D01-coupling.

[0094] (33) Pure electric dual-motor centralized four-wheel drive mode 14-00-0-0 The first motor and the fourth motor are both driven by current; the second motor, the third motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0095] (34) Pure electric dual-motor centralized four-wheel drive mode 14-00-0-1 The first motor and the fourth motor are both driven by current; the second motor, the third motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-disconnect, D01-couple.

[0096] (35) Pure electric dual-motor centralized four-wheel drive mode 14-00-1-0 The first motor and the fourth motor are both driven by current; the second motor, the third motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-coupling, D01-disconnecting.

[0097] (36) Pure electric dual-motor centralized four-wheel drive mode 14-00-1-1: The first motor and the fourth motor are both driven by current; the second motor, the third motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-coupling, D01-coupling.

[0098] (37) Pure electric dual-motor centralized four-wheel drive mode 23-00-0-0: The second motor and the third motor are both driven by current; the first motor, the fourth motor and the fifth motor are not working; Control mode of coupling and disconnection mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect; (38) Pure electric dual-motor centralized four-wheel drive mode 23-00-0-1: The second motor and the third motor are both driven by current to work; the first motor, the fourth motor and the fifth motor are all not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-disconnect, D01-couple; (39) Pure electric dual-motor centralized four-wheel drive mode 23-00-1-0 The second motor and the third motor are both driven by current; the first motor, the fourth motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-coupling, D01-disconnecting.

[0099] (40) Pure electric dual-motor centralized four-wheel drive mode 23-00-1-1 The second motor and the third motor are both driven by current; the first motor, the fourth motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-coupling, D01-coupling.

[0100] (41) Pure electric dual-motor centralized four-wheel drive mode 24-00-0-0 The second motor and the fourth motor are both current driven; the first motor, the third motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0101] (42) Pure electric dual-motor centralized four-wheel drive mode 24-00-0-1 The second motor and the fourth motor are both current driven; the first motor, the third motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-disconnect, D01-coupled.

[0102] (43) Pure electric dual-motor centralized four-wheel drive mode 24-00-1-0 The second motor and the fourth motor are both current driven; the first motor, the third motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-coupling, D01-disconnecting.

[0103] (44) Pure electric dual-motor centralized four-wheel drive mode 24-00-1-1 The second motor and the fourth motor are both current driven; the first motor, the third motor and the fifth motor are not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-coupling, D01-coupling.

[0104] (45) Pure electric single motor front-wheel drive centralized drive mode 1-00-0-0 The first motor is driven by current; the second motor, the third motor, the fourth motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43, D0-disconnect, D01-disconnect.

[0105] (46) Pure electric single motor front-wheel drive centralized drive mode 1-00-1-0 The first motor is driven by current; the second motor, the third motor, the fourth motor and the fifth motor are not in operation; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43, D0-coupling, D01-disconnecting.

[0106] (47) Pure electric single motor front-wheel drive centralized drive mode 2-00-0-0 The second motor is driven by current; the first motor, the third motor, the fourth motor and the fifth motor are all not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43, D0-disconnect, D01-disconnect.

[0107] (48) Pure electric single motor front-wheel drive centralized drive mode 2-00-1-0 The second motor is driven by current; the first motor, the third motor, the fourth motor and the fifth motor are all not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43, D0-coupling, D01-disconnecting.

[0108] (49) Pure electric single motor rear-wheel drive centralized drive mode 3-00-0-0 The third motor is driven by current; the first motor, the second motor, the fourth motor and the fifth motor are all not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0109] (50) Pure electric single motor rear-wheel drive centralized drive mode 3-00-1-0 The third motor is driven by current; the first motor, the second motor, the fourth motor and the fifth motor are all not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33-K34, K42-K43, D0-coupling, D01-disconnecting.

[0110] (51) Pure electric single motor rear-wheel drive centralized drive mode 4-00-0-0 The fourth motor is driven by current; the first motor, the second motor, the third motor and the fifth motor are all not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0111] (52) Pure electric single motor rear-wheel drive centralized drive mode 4-00-1-0 The fourth motor is driven by current; the first motor, the second motor, the third motor and the fifth motor are all not working; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33, K42-K43-K44, D0-coupling, D01-disconnecting.

[0112] (53) Extended range four-motor distributed four-wheel drive mode 1234-11-0-0 The first motor, the second motor, the third motor, and the fourth motor are all current driven, and the fifth motor is torque driven. Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0113] (54) Extended range four-motor distributed four-wheel drive mode 1234-11-0-1 The first motor, the second motor, the third motor, and the fourth motor are all current driven, and the fifth motor is torque driven. Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-coupled.

[0114] (55) Extended range four-motor distributed four-wheel drive mode 1234-11-1-0 The first motor, the second motor, the third motor, and the fourth motor are all driven by current, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-coupling, D01-disconnecting.

[0115] (56) Extended range four-motor distributed four-wheel drive mode 1234-11-1-1 The first motor, the second motor, the third motor, and the fourth motor are all current driven, and the fifth motor is torque driven. Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-coupling, D01-coupling.

[0116] (57) Extended range four-motor centralized four-wheel drive mode 1234-00-0-0 The first motor, the second motor, the third motor, and the fourth motor are all current driven, and the fifth motor is torque driven. Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-disconnect.

[0117] (58) Extended range four-motor centralized four-wheel drive mode 1234-00-0-1 The first motor, the second motor, the third motor, and the fourth motor are all current driven, and the fifth motor is torque driven. Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-coupled.

[0118] (59) Extended range four-motor centralized four-wheel drive mode 1234-00-1-0 The first motor, the second motor, the third motor, and the fourth motor are all current driven, and the fifth motor is torque driven. Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-coupling, D01-disconnecting.

[0119] (60) Extended range four-motor centralized four-wheel drive mode 1234-00-1-1 The first motor, the second motor, the third motor, and the fourth motor are all driven by current; the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-coupling, D01-coupling.

[0120] (61) Extended range three-motor front centralized rear distributed four-wheel drive mode 134-01-0-0 The first motor, the third motor, and the fourth motor are all driven by current; the second motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0121] (62) Extended range three-motor front centralized rear distributed four-wheel drive mode 134-01-0-1 The first motor, the third motor, and the fourth motor are all driven by current; the second motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-coupled.

[0122] (63) Extended range three-motor front centralized rear distributed four-wheel drive mode 134-01-1-0 The first motor, the third motor, and the fourth motor are all driven by current; the second motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-coupling, D01-disconnecting.

[0123] (64) Extended range three-motor front centralized rear distributed four-wheel drive mode 134-01-1-1 The first motor, the third motor, and the fourth motor are all driven by current; the second motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-coupling, D01-coupling.

[0124] (65) Extended range three-motor front centralized rear distributed four-wheel drive mode 234-01-0-0 The second motor, the third motor, and the fourth motor are all driven by current; the first motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0125] (66) Extended range three-motor front centralized rear distributed four-wheel drive mode 234-01-0-1 The second motor, the third motor, and the fourth motor are all driven by current; the first motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-coupled.

[0126] (67) Extended range three-motor front centralized rear distributed four-wheel drive mode 234-01-1-0 The second motor, the third motor, and the fourth motor are all driven by current; the first motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-coupling, D01-disconnecting.

[0127] (68) Extended range three-motor front centralized rear distributed four-wheel drive mode 234-01-1-1 The second motor, the third motor, and the fourth motor are all driven by current; the first motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-coupling, D01-coupling.

[0128] (69) Extended range three-motor front distributed rear centralized four-wheel drive mode 123-10-0-0 The first motor, the second motor, and the third motor are all driven by current; the fourth motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0129] (70) Extended range three-motor front distributed rear centralized four-wheel drive mode 123-10-0-1 The first motor, the second motor, and the third motor are all driven by current; the fourth motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-disconnect, D01-couple.

[0130] (71) Extended range three-motor front distributed rear centralized four-wheel drive mode 123-10-1-0 The first motor, the second motor, and the third motor are all driven by current; the fourth motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-coupling, D01-disconnecting.

[0131] (72) Extended range three-motor front distributed rear centralized four-wheel drive mode 123-10-1-1 The first motor, the second motor, and the third motor are all driven by current; the fourth motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-coupling, D01-coupling.

[0132] (73) Extended range three-motor front distributed rear centralized four-wheel drive mode 124-10-0-0 The first motor, the second motor, and the fourth motor are all driven by current; the third motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0133] (74) Extended range three-motor front distributed rear centralized four-wheel drive mode 124-10-0-1 The first motor, the second motor, and the fourth motor are all driven by current; the third motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-disconnect, D01-coupled.

[0134] (75) Extended range three-motor front distributed rear centralized four-wheel drive mode 124-10-1-0 The first motor, the second motor, and the fourth motor are all driven by current; the third motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-coupling, D01-disconnecting.

[0135] (76) Extended range three-motor front distributed rear centralized four-wheel drive mode 124-10-1-1 The first motor, the second motor, and the fourth motor are all driven by current; the third motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-coupling, D01-coupling.

[0136] (77) Extended range three-motor fully centralized four-wheel drive mode 134-00-0-0 The first motor, the third motor, and the fourth motor are all driven by current; the second motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-disconnect.

[0137] (78) Extended range three-motor fully centralized four-wheel drive mode 134-00-0-1 The first motor, the third motor, and the fourth motor are all driven by current; the second motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-D0-coupled.

[0138] (79) Extended range three-motor fully centralized four-wheel drive mode 134-00-1-0 The first motor, the third motor, and the fourth motor are all driven by current; the second motor is not working, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-coupling, D01-disconnecting.

[0139] (80) Extended range three-motor fully centralized four-wheel drive mode 134-00-1-1 The first motor, the third motor, and the fourth motor are all driven by current to work; the second motor is not working, and the fifth motor is driven by torque to work; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-coupling, D01-coupling.

[0140] (81) Extended range dual motor centralized four-wheel drive mode 13-00-0-0 The first motor and the third motor are both current driven; the second motor and the fourth motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0141] (82) Extended range dual motor centralized four-wheel drive mode 13-00-0-1 The first motor and the third motor are both current driven; the second motor and the fourth motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-disconnect, D01-couple.

[0142] (83) Extended range dual motor centralized four-wheel drive mode 13-00-1-0 The first motor and the third motor are both current driven; the second motor and the fourth motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-coupling, D01-disconnecting.

[0143] (84) Extended range dual motor centralized four-wheel drive mode 13-00-1-1 The first motor and the third motor are both current driven; the second motor and the fourth motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-coupling, D01-coupling.

[0144] (85) Extended range dual motor centralized four-wheel drive mode 14-00-0-0 The first motor and the fourth motor are both current driven; the second motor and the third motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0145] (86) Extended range dual motor centralized four-wheel drive mode 14-00-0-1 The first motor and the fourth motor are both current driven; the second motor and the third motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-disconnect, D01-couple.

[0146] (87) Extended range dual motor centralized four-wheel drive mode 14-00-1-0 The first motor and the fourth motor are both current driven; the second motor and the third motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-coupling, D01-disconnecting.

[0147] (88) Extended range dual motor centralized four-wheel drive mode 14-00-1-1 The first motor and the fourth motor are both current driven; the second motor and the third motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-coupling, D01-coupling.

[0148] (89) Extended range dual motor centralized four-wheel drive mode 23-00-0-0 The second motor and the third motor are both current driven; the first motor and the fourth motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0149] (90) Extended range dual motor centralized four-wheel drive mode 23-00-0-1 The second motor and the third motor are both current driven; the first motor and the fourth motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-disconnect, D01-couple.

[0150] (91) Extended range dual motor centralized four-wheel drive mode 23-00-1-0 The second motor and the third motor are both current driven; the first motor and the fourth motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-coupling, D01-disconnecting.

[0151] (92) Extended range dual motor centralized four-wheel drive mode 23-00-1-1 The second motor and the third motor are both current driven; the first motor and the fourth motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-coupling, D01-coupling.

[0152] (93) Extended range dual motor centralized four-wheel drive mode 24-00-0-0 The second motor and the fourth motor are both current driven; the first motor and the third motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0153] (94) Extended range dual motor centralized four-wheel drive mode 24-00-0-1 The second motor and the fourth motor are both current driven; the first motor and the third motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-disconnect, D01-coupled.

[0154] (95) Extended range dual motor centralized four-wheel drive mode 24-00-1-0 The second motor and the fourth motor are both current driven; the first motor and the third motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-coupling, D01-disconnecting.

[0155] (96) Extended range dual motor centralized four-wheel drive mode 24-00-1-1 The second motor and the fourth motor are both current driven; the first motor and the third motor are both inoperative, and the fifth motor is torque driven; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-coupling, D01-coupling.

[0156] (97) Extended range single motor front-wheel drive centralized drive mode 1-00-0-0 The first motor is driven by current; the second motor, the third motor, and the fourth motor are all inoperative, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43, D0-disconnect, D01-disconnect.

[0157] (98) Extended range single motor front-wheel drive centralized drive mode 1-00-1-0 The first motor is driven by current; the second motor, the third motor, and the fourth motor are all inoperative, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43, D0-coupling, D01-disconnecting.

[0158] (99) Extended range single motor front-wheel drive centralized drive mode 2-00-0-0 The second motor is driven by current; the first motor, the third motor, and the fourth motor are all inoperative, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43, D0-disconnect, D01-disconnect.

[0159] (100) Extended range single motor front-wheel drive centralized drive mode 2-00-1-0 The second motor is driven by current; the first motor, the third motor, and the fourth motor are all inoperative, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43, D0-coupling, D01-disconnecting.

[0160] (101) Extended range single motor rear-wheel drive centralized drive mode 3-00-0-0 The third motor is driven by current; the first motor, the second motor, and the fourth motor are all inoperative, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0161] (102) Extended range single motor rear-wheel drive centralized drive mode 3-00-1-0 The third motor is driven by current; the first motor, the second motor, and the fourth motor are all inoperative, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33-K34, K42-K43, D0-coupling, D01-disconnecting.

[0162] (103) Extended range single motor rear-wheel drive centralized drive mode 4-00-0-0 The fourth motor is driven by current; the first motor, the second motor, and the third motor are all inoperative, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0163] (104) Extended range single motor rear-wheel drive centralized drive mode 4-00-1-0 The fourth motor is driven by current; the first motor, the second motor, and the third motor are all inoperative, and the fifth motor is driven by torque; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33, K42-K43-K44, D0-coupling, D01-disconnecting.

[0164] (105) Four-motor distributed four-wheel drive mode 1234-11-0-0 (energy recovery condition 1): Regardless of the working state of the fifth motor, the first motor, the second motor, the third motor, and the fourth motor are all in the torque drive working state; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0165] (106) Four-motor centralized four-wheel drive mode 1234-00-0-0 (energy recovery condition 2): Regardless of the working state of the fifth motor, the first motor, the second motor, the third motor, and the fourth motor are all in the torque drive working state; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23-K24, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-disconnect.

[0166] (107) Three-motor front centralized rear distributed four-wheel drive mode 134-01-0-0 (energy recovery condition 3): Regardless of the working state of the fifth motor, the second motor is in a non-working state, and the first motor, the third motor, and the fourth motor are all in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0167] (108) Three-motor front centralized rear distributed four-wheel drive mode 234-01-0-0 (energy recovery condition 4): Regardless of the working state of the fifth motor, the first motor is in a non-working state, and the second motor, the third motor, and the fourth motor are all in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K31, K42-K43-K41, D0-disconnect, D01-disconnect.

[0168] (109) Three-motor front-distributed rear-centralized four-wheel drive mode 123-10-0-0 (energy recovery condition 5): Regardless of the working state of the fifth motor, the fourth motor is in a non-working state, and the first motor, the second motor, and the third motor are all in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0169] (110) Three-motor front distributed rear centralized four-wheel drive mode 124-10-0-0 (energy recovery condition 6): Regardless of the working state of the fifth motor, the third motor is in a non-working state, and the first motor, the second motor, and the fourth motor are all in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13-K11, K22-K23-K21, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0170] (111) Three-motor fully centralized four-wheel drive mode 134-00-0-0 (energy recovery condition 7): Regardless of the working state of the fifth motor, the second motor is in a non-working state, and the first motor, the third motor, and the fourth motor are all in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43-K44, D0-disconnect, D01-disconnect.

[0171] (112) Dual-motor centralized four-wheel drive mode 13-00-0-0 (energy recovery condition 8): Regardless of the working state of the fifth motor, the second motor and the fourth motor are in a non-working state, and the first motor and the third motor are in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0172] (113) Dual-motor centralized four-wheel drive mode 14-00-0-0 (energy recovery condition 9): Regardless of the working state of the fifth motor, the second motor and the third motor are in a non-working state, and the first motor and the fourth motor are in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0173] (114) Dual-motor centralized four-wheel drive mode 23-00-0-0 (energy recovery condition 10): Regardless of the working state of the fifth motor, the first motor and the fourth motor are in a non-working state, and the second motor and the third motor are in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect.

[0174] (115) Dual-motor centralized four-wheel drive mode 24-00-0-0 (energy recovery condition 11): Regardless of the working state of the fifth motor, the first motor and the third motor are in a non-working state, and the second motor and the fourth motor are in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0175] (116) Single motor front-wheel drive centralized drive mode 1-00-0-0 (energy recovery condition 12): Regardless of the working state of the fifth motor, the second motor, the third motor, and the fourth motor are in a non-working state, and the first motor is in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13-K14, K22-K23, K32-K33, K42-K43, D0-disconnect, D01-disconnect.

[0176] (117) Single motor front-wheel drive centralized drive mode 2-00-0-0 (energy recovery condition 13): Regardless of the working state of the fifth motor, the first motor, the third motor, and the fourth motor are in a non-working state, and the second motor is in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23-K24, K32-K33, K42-K43, D0-disconnect, D01-disconnect.

[0177] (118) Single motor front-wheel drive centralized drive mode 3-00-0-0 (energy recovery condition 14): Regardless of the working state of the fifth motor, the first motor, the second motor, and the fourth motor are in a non-working state, and the third motor is in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33-K34, K42-K43, D0-disconnect, D01-disconnect; (119) Single motor front-wheel drive centralized drive mode 4-00-0-0 (energy recovery condition 15): Regardless of the working state of the fifth motor, the first motor, the second motor, and the third motor are in a non-working state, and the fourth motor is in a torque-driven working state; Control mode of coupling and disconnecting mechanism: K12-K13, K22-K23, K32-K33, K42-K43-K44, D0-disconnect, D01-disconnect.

[0178] Compared with the existing technology, this application has the following technical effects: (1) The five-motor four-wheel drive system can achieve extended-range electric drive and solve the system endurance problem.

[0179] (2) The five-motor four-wheel drive system has the functions of four-wheel drive, two-wheel drive front drive, and two-wheel drive rear drive, realizing the selection and combination of distributed drive and centralized drive to form a variety of drive modes.

[0180] (3) The five-motor four-wheel drive system also has a wheel-end differential locking function to meet the need to escape when the vehicle's wheel ends slip.

[0181] (4) The five-motor four-drive power system has a platform layout and a spatially symmetrical design. The symmetrical design of the same parameters of the reduction mechanism in some instances can greatly improve the reuse rate of parts and reduce system costs.

[0182] (5) The five-motor four-wheel drive system can differentiate the selection of front and rear axle motors according to the vehicle performance positioning, while ensuring good power of the drive system and optimizing system costs.

[0183] (6) The five-motor four-drive power drive system has an optional two-stage reduction mechanism, which can adjust the transmission ratio, realize two-speed reduction and torque increase of the motor, and improve system efficiency.

[0184] (7) The coupling and disconnection mechanism of the five-motor four-wheel drive system can reduce power loss with the simplest system layout.

[0185] (8) The five-motor, four-drive power system can switch between multiple drive modes and has sufficient safety redundancy. For example, when some motors or transmission systems fail, the multi-stage coupling and disconnection mechanism can achieve fault isolation and power output selection, ensuring the reliability and stability of the drive system.

[0186] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A hybrid electric vehicle, characterized in that: include: body; a wheel assembly, the wheel assembly being movably connected to the vehicle body; and A drive mechanism, the drive mechanism includes a battery, a range extender assembly, a motor assembly, a primary gear assembly, a secondary gear assembly, a transmission assembly, a differential assembly and a coupling and disconnection assembly, the range extender assembly is electrically connected to the battery, the battery is electrically connected to the motor assembly, the motor assembly is transmission-connected to the primary gear assembly, the primary gear assembly is transmission-connected to the input part of the coupling and disconnection assembly, the output part of the coupling and disconnection assembly is transmission-connected to the secondary gear assembly, the secondary gear assembly is transmission-connected to the wheel assembly, the output end of the coupling and disconnection assembly is transmission-connected to the transmission assembly, the transmission assembly is transmission-connected to the differential assembly, and the differential assembly is transmission-connected to the wheel assembly.

2. The hybrid vehicle according to claim 1, characterized in that: The wheel assembly includes a first wheel and a second wheel, the motor assembly includes a first motor and a second motor, the primary gear assembly includes a first primary gear set and a second primary gear set, the secondary gear assembly includes a first secondary gear set and a second secondary gear set, the transmission assembly includes a first transmission set, the coupling and disconnection assembly includes a first coupling and disconnection element and a second coupling and disconnection element, and the differential assembly includes a first differential set; The battery is electrically connected to the first motor, the first motor is drivingly connected to the first primary gear set, the first primary gear set is drivingly connected to the first input portion of the first coupling / disconnecting element, the first output portion of the first coupling / disconnecting element is drivingly connected to the first secondary gear set, and the first secondary gear set is drivingly connected to the first wheel; The battery is electrically connected to the second motor, the second motor is drivingly connected to the second primary gear set, the second primary gear set is drivingly connected to the second input portion of the second coupling / disconnection element, the second output portion of the second coupling / disconnection element is drivingly connected to the second secondary gear set, and the second secondary gear set is drivingly connected to the second wheel; The first output end of the first coupling disconnect element and the second output end of the second coupling disconnect element are both drivingly connected to the first transmission group, the first transmission group is drivingly connected to the first differential group, and the first differential group is drivingly connected to the first wheel and the second wheel.

3. The hybrid vehicle according to claim 2, characterized in that: The wheel assembly includes a third wheel and a fourth wheel, the motor assembly includes a third motor and a fourth motor, the primary gear assembly includes a third primary gear set and a fourth primary gear set, the secondary gear assembly includes a third secondary gear set and a fourth secondary gear set, the transmission assembly includes a second transmission group, the coupling and disconnection assembly includes a third coupling and disconnection element and a fourth coupling and disconnection element, and the differential assembly includes a second differential group; The battery is electrically connected to the third motor, the third motor is drivingly connected to the third primary gear set, the third primary gear set is drivingly connected to the third input portion of the third coupling / disconnection element, the third output portion of the third coupling / disconnection element is drivingly connected to the third secondary gear set, and the third secondary gear set is drivingly connected to the third wheel; The battery is electrically connected to the fourth motor, the fourth motor is drivingly connected to the fourth primary gear set, the fourth primary gear set is drivingly connected to the fourth input portion of the fourth coupling / disconnecting element, the fourth output portion of the fourth coupling / disconnecting element is drivingly connected to the fourth secondary gear set, and the fourth secondary gear set is drivingly connected to the fourth wheel; The third output end of the third coupling-disconnecting element and the fourth output end of the fourth coupling-disconnecting element are both drivingly connected to the second transmission group, the second transmission group is drivingly connected to the second differential group, and the second differential group is drivingly connected to the third wheel and the fourth wheel.

4. The hybrid vehicle according to claim 3, characterized in that: The first differential group includes a first differential and a first differential lock. The first differential is drivingly connected to the first transmission group, and the first differential is also drivingly connected to the first wheel and the second wheel. The first differential lock is drivingly connected to the first differential.

5. The hybrid vehicle according to claim 3, characterized in that: The second differential group includes a second differential and a second differential lock. The second differential is drivingly connected to the second transmission group, and the second differential is drivingly connected to the third wheel and the fourth wheel. The second differential lock is drivingly connected to the second differential.

6. The hybrid vehicle according to claim 3, characterized in that: The first coupling and disconnecting element includes a first sliding part. When the first sliding part moves to a first position, the first primary gear set is transmission-connected with the first secondary gear set. When the first sliding part moves to a second position, the first primary gear set is transmission-connected with the first transmission set.

7. The hybrid vehicle according to claim 3, characterized in that: The second coupling and disconnecting element includes a second sliding part. When the second sliding part is in the first position, the second primary gear set is transmission-connected with the second secondary gear set. When the second sliding part moves to the second position, the second primary gear set is transmission-connected with the first transmission set.

8. The hybrid vehicle according to claim 3, characterized in that: The third coupling and disconnecting element includes a third sliding part. When the third sliding part is in the first position, the third primary gear set is transmission-connected with the third secondary gear set. When the third sliding part moves to the second position, the third primary gear set is transmission-connected with the second transmission set.

9. The hybrid vehicle according to claim 3, characterized in that: The fourth coupling and disconnecting element includes a fourth sliding part. When the fourth sliding part is in the first position, the fourth primary gear set is transmission-connected with the fourth secondary gear set. When the fourth sliding part moves to the second position, the fourth primary gear set is transmission-connected with the second transmission set.

10. The hybrid vehicle according to any one of claims 1 to 9, characterized in that: The range extender assembly includes an engine, a torque damper and a fifth motor. The engine is transmission-connected to the torque damper, the torque damper is transmission-connected to the fifth motor, and the fifth motor is electrically connected to the battery.

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