Hybrid drive device and vehicle

Abstract

The utility model relates to a hybrid power driving device and a vehicle, the hybrid power driving device comprises a differential mechanism, a first driving mechanism and a second driving mechanism, and the differential mechanism comprises a differential mechanism and a first transmission assembly in transmission connection with the differential mechanism. The second transmission assembly and the third transmission assembly are in transmission connection to the output end of the motor, and the transmission ratios of the second transmission assembly and the third transmission assembly are different. The second driving mechanism comprises an engine and a fourth transmission assembly in transmission connection with the output end of the engine, and the fourth transmission assembly is in separable transmission connection with the first transmission assembly. The hybrid power driving device is configured in the mode that the second transmission assembly and the third transmission assembly are separately connected to the first transmission assembly in a transmission mode. In the embodiment of the invention, the hybrid power driving device can have multiple modes and is suitable for multiple conditions, and it is guaranteed that sufficient driving force is output under the multiple conditions.

Description

Technical Field

[0001] The present application relates to the technical field of drive devices, and in particular to a hybrid power drive device and a vehicle. Background Art

[0002] As environmental problems become increasingly severe, new energy vehicles have entered a stage of rapid development. Purely electric-powered vehicles are currently unable to meet people's needs for long-distance driving and off-roading due to problems with range and charging. Therefore, hybrid-powered vehicles have become the best solution at this stage. On the one hand, hybrid-powered vehicles have the driving experience of pure electric-powered vehicles, and on the other hand, they can also solve people's anxiety about mileage.

[0003] However, in existing hybrid-powered vehicles, there is only one gear in the case of pure electric drive, which has low efficiency in utilizing the vehicle power and cannot well meet the driving needs of the vehicle. Utility Model Content

[0004] The hybrid drive device and vehicle provided in the embodiments of the present application can have multiple modes and are suitable for a variety of situations, ensuring sufficient driving force output in a variety of situations.

[0005] In a first aspect, an embodiment of the present application provides a hybrid driving device, comprising:

[0006] A differential mechanism, the differential mechanism comprising a differential and a first transmission assembly drivingly connected to the differential;

[0007] A first driving mechanism, the first driving mechanism comprising a motor and a second transmission assembly and a third transmission assembly transmission-connected to an output end of the motor, wherein the second transmission assembly has a different transmission ratio from the third transmission assembly;

[0008] A second driving mechanism, the second driving mechanism comprising an engine and a fourth transmission assembly drivingly connected to an output end of the engine, the fourth transmission assembly being detachably drivingly connected to the first transmission assembly;

[0009] Wherein, the hybrid power driving device is configured such that the second transmission assembly and the third transmission assembly can be detachably connected to the first transmission assembly.

[0010] In some embodiments, the first transmission assembly includes a first transmission shaft;

[0011] The second transmission assembly comprises a second active member and a second driven member in transmission connection, the second active member moves synchronously with the output end of the motor, and the second driven member is sleeved on the first transmission shaft at intervals;

[0012] The third transmission assembly comprises a third active member and a third driven member in transmission connection, the third active member moves synchronously with the output end of the motor, and the third driven member is sleeved on the first transmission shaft at intervals;

[0013] The first driving mechanism further comprises a switching member anti-rotatably connected to the first transmission shaft, wherein the switching member is movably arranged relative to the first transmission shaft along the axial direction of the first transmission shaft so as to be fixed to or separated from the second driven member or the third driven member.

[0014] In some embodiments, the first driving mechanism further comprises a second transmission shaft fixed to the output end of the motor, and the second active member and the third active member are fixed to the second transmission shaft;

[0015] Among them, the second transmission shaft and the first transmission shaft are both extended along the first direction, the second transmission shaft and the first transmission shaft are spaced apart along the second direction, the first direction intersects with the second direction, and the electric motor is located on the side of the second transmission assembly and the third transmission assembly close to the differential.

[0016] In some embodiments, the fourth transmission assembly includes a fourth active member and a fourth driven member;

[0017] The first transmission assembly includes a first transmission shaft, and the second drive mechanism includes a third transmission shaft fixed to the output end of the engine;

[0018] The fourth active member is fixed to the third transmission shaft, and the fourth driven member is fixed to the first transmission shaft;

[0019] The fourth transmission assembly further includes a power transmission assembly, and the power transmission assembly includes:

[0020] A first transmission member, the first transmission member is transmission-connected to the fourth active member;

[0021] a second transmission member, the second transmission member being drivingly connected to the fourth driven member;

[0022] A fourth transmission shaft, the first transmission member and the second transmission member are fixedly connected to two axial ends of the fourth transmission shaft respectively;

[0023] A clutch is arranged on the fourth transmission shaft to transmit or interrupt power between the first transmission member and the second transmission member.

[0024] In some embodiments, the third transmission shaft, the fourth transmission shaft and the first transmission shaft are all extended along the first direction, the third transmission shaft, the fourth transmission shaft and the first transmission shaft are spaced apart in the second direction, and the first direction intersects with the second direction;

[0025] Along the second direction, the first transmission shaft and the third transmission shaft are located on both sides of the fourth transmission shaft.

[0026] In some embodiments, the first driving mechanism includes a second transmission shaft fixed to the output end of the motor, and the second transmission shaft is coaxially arranged with the fourth transmission shaft;

[0027] Along the first direction, the engine, the third transmission shaft, the electric motor and the second transmission shaft are arranged in sequence.

[0028] In some embodiments, a power generation component is also included, and the power generation component includes a generator and a fifth transmission component that is transmission-connected between the generator and the engine, and the fifth transmission component is a speed-increasing transmission.

[0029] In some embodiments, the output end of the engine is connected to a third transmission shaft, and the generator is connected to a fifth transmission shaft;

[0030] The fifth transmission assembly comprises a fifth active member and a fifth driven member in transmission connection, the fifth active member is fixed to the third transmission shaft, and the fifth driven member is fixed to the fifth transmission shaft;

[0031] The third transmission shaft and the fifth transmission shaft are both extended along the first direction, and the third transmission shaft and the fifth transmission shaft are spaced apart in the second direction.

[0032] In some embodiments, along the first direction, the engine, the generator and the motor are arranged in sequence;

[0033] Along the second direction, the differential, the motor, the engine and the generator are arranged in sequence.

[0034] In a second aspect, an embodiment of the present application provides a vehicle comprising the hybrid power drive device.

[0035] The hybrid power drive device provided in the embodiment of the present application can be applied to a variety of situations, ensuring that there is sufficient driving force output in a variety of situations. Taking the hybrid power device installed in a vehicle as an example, first, when the battery power of the vehicle is sufficient and no additional power drive is required, the motor can be used to drive alone, and the low-speed high-torque transmission can be completed through the second transmission assembly, which is suitable for the starting stage of the vehicle. The third transmission assembly can also complete the high-speed small-torque transmission, which is suitable for the high-speed driving stage of the vehicle. In the above two cases, due to the different transmission ratios of the second transmission assembly and the third transmission assembly, when the motor outputs at a speed within the speed range of efficient operation, different transmission ratios can be used to meet the different situations of vehicle driving to improve the power utilization efficiency of the motor. When the vehicle needs to supplement the power drive, the motor and the engine can be used to drive at the same time to achieve the effect of superposition of the driving force of the motor and the engine to meet the driving force of the vehicle. When the battery power of the vehicle is insufficient, the engine can be used to drive, and the engine can also drive the generator to generate electricity through the speed increase transmission of the power generation assembly to replenish the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0037] Figure 1 A schematic diagram of the principle structure of a hybrid power drive device provided in some embodiments of the present application;

[0038] Figure 2 A schematic diagram of the principle structure of the connection between a differential mechanism and a first drive mechanism in a hybrid drive device provided in some embodiments of the present application;

[0039] Figure 3 A schematic diagram of the principle structure of the connection between a differential mechanism and a second drive mechanism in a hybrid drive device provided in some embodiments of the present application;

[0040] Figure 4 A schematic diagram of the principle structure of the connection between a second drive mechanism and a power generation assembly in a hybrid drive device provided in some embodiments of the present application.

[0041] Marking Description:

[0042] 10. differential mechanism; 11. differential; 12. first transmission assembly; 121. first transmission shaft; 122. first active member; 123. first passive member;

[0043] 20. First driving mechanism; 21. Motor; 22. Second transmission assembly; 221. Second active member; 222. Second driven member; 23. Third transmission assembly; 231. Third active member; 232. Third driven member; 24. Switching member; 25. Second transmission shaft;

[0044] 30. Second drive mechanism; 31. Engine; 32. Fourth transmission assembly; 321. Fourth active member; 322. Fourth driven member; 33. Third transmission shaft; 34. Power transmission assembly; 341. First transmission member; 342. Second transmission member; 343. Fourth transmission shaft; 344. Clutch;

[0045] 40. Power generation assembly; 41. Generator; 42. Fifth transmission assembly; 421. Fifth driving member; 422. Fifth driven member; 43. Fifth transmission shaft;

[0046] X, first direction; Y, second direction.

[0047] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0048] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0049] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0050] As environmental problems become increasingly severe, new energy vehicles have entered a stage of rapid development. Purely electric-powered vehicles are currently unable to meet people's needs for long-distance driving and off-roading due to problems with range and charging. Therefore, hybrid-powered vehicles have become the best solution at this stage. On the one hand, hybrid-powered vehicles have the driving experience of pure electric-powered vehicles, and on the other hand, they can also solve people's anxiety about mileage.

[0051] However, in existing hybrid-powered vehicles, there is only one gear in the case of pure electric drive, that is, there is only one transmission ratio when the electric motor is driven alone. It is obviously impossible to maintain efficient use of the vehicle's power under conditions requiring low speed and high torque and conditions requiring high speed and low torque, and cannot meet the driving needs of the vehicle's actual driving conditions.

[0052] In view of this, first of all, please refer to Figures 1 to 4 The embodiment of the present application provides a hybrid power drive device, which includes a differential mechanism 10, a first drive mechanism 20 and a second drive mechanism 30. The differential mechanism 10 includes a differential 11 and a first transmission assembly 12 that is transmission-connected to the differential 11. The first drive mechanism 20 includes a motor 21 and a second transmission assembly 22 and a third transmission assembly 23 that are transmission-connected to the output end of the motor 21, and the transmission ratios of the second transmission assembly 22 and the third transmission assembly 23 are different. The second drive mechanism 30 includes an engine 31 and a fourth transmission assembly 32 that is transmission-connected to the output end of the engine 31, and the fourth transmission assembly 32 is detachably transmission-connected to the first transmission assembly 12. The hybrid power drive device is configured such that both the second transmission assembly 22 and the third transmission assembly 23 are detachably transmission-connected to the first transmission assembly 12.

[0053] The hybrid drive device provided by the embodiment of the present application includes a differential mechanism 10, a first drive mechanism 20 and a second drive mechanism 30. It should be understood that the first drive mechanism 20 and the second drive mechanism 30 are the power supply ends in the entire hybrid drive device, and the differential mechanism 10 is the power output end of the entire hybrid drive device. The output end of the differential mechanism 10 can be connected to the drive axle of the wheels on both sides of the vehicle to drive the wheels to rotate and realize the movement of the vehicle. The first drive mechanism 20 and the second drive mechanism 30 are driven by the motor 21 and the engine 31 respectively. In the hybrid drive device, the first drive mechanism 20 can be driven alone, that is, the motor 21 is driven alone, and the second drive mechanism 30 can be driven alone, that is, the engine 31 is driven alone. It can also be that the first drive mechanism 20 and the second drive mechanism 30 are driven simultaneously, that is, the motor 21 and the engine 31 are driven simultaneously, which is suitable for the situation of rapid acceleration and large torque.

[0054] Specifically, the differential mechanism 10 includes a differential 11 and a first transmission assembly 12 that is transmission-connected to the differential 11. The first transmission assembly 12 should be a specific transmission structure in which the driving force of the first drive mechanism 20 or the second drive mechanism 30 is transmitted, and the transmission structure transmits power to the differential 11, then the transmission structure is called the first transmission assembly 12; the transmission connection should refer to a connection method in which power can be transmitted. Exemplarily, a first driven member 123 is fixedly provided on the input shaft of the differential 11, and a first active member 122 is transmission-connected to the first driven member 123, and the first active member 122 is fixed on the first transmission shaft 121, then the first active member 122 and the first driven member 123 can be transmission-connected to realize power transmission, then the first transmission assembly 12 includes the first active member 122, the first passive member 123 and the first transmission shaft 121. Specifically, the first passive component 123 is set as the first gear, the first gear is fixedly set on the input shaft of the differential 11, the first active component 122 is set as the second gear, the second gear is meshed with the first gear, and the second gear is fixed on the first transmission shaft 121. When the first gear and the second gear are meshed, power transmission can be achieved, and the first gear and the second gear are called a transmission connection, and the first transmission assembly 12 includes the first transmission shaft 121, the first gear and the second gear.

[0055] In other embodiments, the transmission connection can be in various ways. The meshing transmission between the two gears mentioned above is one transmission connection mode; it can also be a belt transmission connection between two pulleys; it can also be a chain transmission connection between two sprockets; or it can be a transmission connection between worm gears, etc. The transmission connection mentioned in the embodiments of the present application can be in various ways, which are not limited here.

[0056] The first driving mechanism 20 includes a motor 21 and a second transmission assembly 22 and a third transmission assembly 23 which are transmission-connected to the output end of the motor 21. The second transmission assembly 22 and the third transmission assembly 23 have different transmission ratios. Both the second transmission assembly 22 and the third transmission assembly 23 can be detachably transmission-connected to the first transmission assembly 12. It can be understood that there are three situations of power transmission between the motor 21 and the differential 11. The first situation is that the first transmission component 12 is not connected to the second transmission component 22 and the third transmission component 23, and the driving force of the motor 21 cannot reach the differential 11. At this time, the motor 21 does not drive the differential 11; the second situation is that the first transmission component 12 is connected to the second transmission component 22, and the driving force of the motor 21 is transmitted to the differential 11 through the second transmission component 22 and the first transmission component 12. During the power transmission process, the transmission is carried out at the transmission ratio of the second transmission component 22; the third situation is that the first transmission component 12 is connected to the third transmission component 23, and the driving force of the motor 21 is transmitted to the differential 11 through the third transmission component 23 and the first transmission component 12. During the power transmission process, the transmission is carried out at the transmission ratio of the third transmission component 23.

[0057] In the embodiment of the present application, taking the transmission ratio of the second transmission component 22 as a large speed ratio for speed reduction and the transmission ratio of the third transmission component 23 as a small speed ratio for speed reduction as an example, when the driving force of the motor 21 is transmitted through the second transmission component 22, a large speed ratio for speed reduction is used. During the power transmission process, the speed transmitted to the first transmission component 12 is small, but the torque is large, which is suitable for the case of low speed and high torque; when the driving force of the motor 21 is transmitted through the third transmission component 23, a small speed ratio for speed reduction is used. During the power transmission process, the torque transmitted to the first transmission component 12 is small, but the speed is large, which is suitable for the case of high speed and low torque. Among them, the large speed ratio of the second transmission component 22 is between 3.5-4, preferably 3.8; the small speed ratio of the third transmission component 23 is between 2-3, preferably 2.5.

[0058] By setting two second transmission components 22 and third transmission components 23 with different transmission ratios in the driving force transmission path of the motor 21, the motor 21 can output the same speed in the high-efficiency output range regardless of whether it is a low-speed and high-torque situation or a high-speed and low-torque situation. By selecting different transmission ratios of the transmission components, it can be adapted to different situations, so that the motor 21 can always be in the high-efficiency working range, thereby improving the efficiency of the use of the driving force of the motor 21.

[0059] The second driving mechanism 30 includes an engine 31 and a fourth transmission assembly 32 which is transmission-connected to the output end of the engine 31, and the fourth transmission assembly 32 is detachably transmission-connected to the first transmission assembly 12. It can be understood that there are two situations for the power transmission between the engine 31 and the differential 11. The first situation is that the fourth transmission assembly 32 and the first transmission assembly 12 are in a state of power transmission connection, and the driving force of the engine 31 is transmitted to the differential 11 through the fourth transmission assembly 32 and the first transmission assembly 12; the second situation is that the fourth transmission assembly 32 and the first transmission assembly 12 are in a state of power transmission interruption, and the driving force of the engine 31 cannot be transmitted to the differential 11. Optionally, a torsional damper is also provided at the output end of the engine 31 to reduce the vibration of the output end of the engine 31.

[0060] In summary, the hybrid power drive device provided in the embodiment of the present application can be applied to a variety of situations, ensuring that there is sufficient driving force output in a variety of situations. Taking the hybrid power device installed in a vehicle as an example, first, when the battery power of the vehicle is sufficient and no additional power drive is required, the motor 21 is used to drive alone, and the low-speed high-torque transmission can be completed through the second transmission assembly 22, which is suitable for the starting stage of the vehicle, and the high-speed small-torque transmission can be completed through the third transmission assembly 23, which is suitable for the high-speed driving stage of the vehicle. In the above two cases, due to the different transmission ratios of the second transmission assembly 22 and the third transmission assembly 23, when the motor 21 outputs at a speed within the speed range of efficient operation, different transmission ratios can be used to meet the different driving situations of the vehicle, so as to improve the power utilization efficiency of the motor 21. When the vehicle needs to supplement the power drive, the motor 21 and the engine 31 can be used to drive at the same time, so as to achieve the effect of superposition of the driving force of the motor 21 and the engine 31, so as to meet the driving force of the vehicle. When the battery power of the vehicle is insufficient, the engine 31 can be used to drive to ensure the mileage of the vehicle.

[0061] In some embodiments, see Figure 1 and Figure 2, the first transmission assembly 12 includes a first transmission shaft 121. The second transmission assembly 22 includes a second active member 221 and a second driven member 222 that are transmission-connected, the second active member 221 moves synchronously with the output end of the motor 21, and the second driven member 222 is sleeved on the first transmission shaft 121 at intervals. The third transmission assembly 23 includes a third active member 231 and a third driven member 232 that are transmission-connected, the third active member 231 moves synchronously with the output end of the motor 21, and the third driven member 232 is sleeved on the first transmission shaft 121 at intervals. The first driving mechanism 20 also includes a switching member 24 that is rotationally anti-connected to the first transmission shaft 121, and the switching member 24 is movably arranged relative to the first transmission shaft 121 along the axial direction of the first transmission shaft 121, so as to be fixed or separated from the second driven member 222 or the third driven member 232.

[0062] It can be understood that the first transmission shaft 121 is transmission-connected to the differential 11 , and when the driving force is transmitted to the first transmission shaft 121 , it can be transmitted to the differential 11 along the first transmission shaft 121 .

[0063] The second active member 221 in the second transmission assembly 22 moves synchronously with the output end of the motor 21. When the output end of the motor 21 starts to rotate, the second active member 221 rotates together with the output end of the motor 21. When the output end of the motor 21 stops rotating, the second active member 221 stops rotating along with the output end of the motor 21. The second driven member 222 is sleeved on the first transmission shaft 121 at intervals. The second driven member 222 and the first transmission shaft 121 can rotate relatively independently. The rotation of the second driven member 222 will not cause the rotation of the first transmission shaft 121, and the rotation of the first transmission will not cause the rotation of the second driven member 222. The second active member 221 is in transmission connection with the second driven member 222, that is, when the second active member 221 rotates, the second driven member 222 also rotates. In the transmission path of the second transmission component 22, the driving force of the motor 21 is output from the output end of the motor 21 and then transmitted to the second driven member 222 along the second active member 221. Since the second driven member 222 is spaced apart on the first transmission shaft 121, in this case, the driving force of the motor 21 is interrupted when it is transmitted to the second driven member 222 and will not be transmitted to the first transmission shaft 121.

[0064] The third active member 231 in the third transmission assembly 23 moves synchronously with the output end of the motor 21. When the output end of the motor 21 starts to rotate, the third active member 231 rotates together with the output end of the motor 21. When the output end of the motor 21 stops rotating, the third active member 231 stops rotating with the output end of the motor 21. The third follower 232 is sleeved on the first transmission shaft 121 at intervals. The third follower 232 and the first transmission shaft 121 can rotate relatively independently. The rotation of the third follower 232 will not cause the rotation of the first transmission shaft 121, and the rotation of the first transmission will not cause the rotation of the third follower 232. The third active member 231 and the third follower 232 are in transmission connection, that is, when the third active member 231 rotates, the third follower 232 will also rotate. In the transmission path of the third transmission component 23, the driving force of the motor 21 is output from the output end of the motor 21 and then transmitted to the third driven member 232 along the third active member 231. Since the third driven member 232 is spaced apart on the first transmission shaft 121, in this case, the driving force of the motor 21 is interrupted when it is transmitted to the third driven member 232 and will not be transmitted to the first transmission shaft 121.

[0065] The switching member 24 is connected to the first transmission shaft 121 in a rotationally-resistant manner, and the switching member 24 is movably arranged along the axial direction of the first transmission shaft 121. When the switching member 24 and the second driven member 222 are fixed, the second driven member 222 and the switching member 24 rotate synchronously. Under the driving force of the motor 21, the second driven member 222 drives the switching member 24 to rotate. Since the switching member 24 and the first transmission shaft 121 are connected in a rotationally-resistant manner, the switching member 24 will drive the first transmission shaft 121 to rotate synchronously. In this case, the motor 21 and the differential 11 are connected through the second transmission assembly 22 and the first transmission assembly 12, and the transmission ratio is the transmission ratio of the second transmission assembly 22. When the switching member 24 and the third driven member 232 are fixed, the third driven member 232 rotates synchronously with the switching member 24. Under the driving force of the motor 21, the third driven member 232 drives the switching member 24 to rotate. Since the switching member 24 and the first transmission shaft 121 are anti-rotationally connected, the switching member 24 will drive the first transmission shaft 121 to rotate synchronously. In this case, the motor 21 and the differential 11 are connected through the third transmission assembly 23 and the first transmission assembly 12, and the transmission ratio is the transmission ratio of the third transmission assembly 23.

[0066] To sum up, the second active member 221 and the third active member 231 are arranged to rotate synchronously with the output end of the motor 21, the second driven member 222 and the third driven member 232 are both spaced apart and sleeved on the first transmission shaft 121, and a switching member 24 is connected to the first transmission shaft 121 for anti-rotation. The switching member 24 is selectively connected to the second driven member 222 or the third driven member 232, so that the two-speed switching transmission can be realized conveniently and reliably, and the preset two-speed switching transmission effect can be achieved with a smaller number of related parts, and a certain production and maintenance cost can also be reduced.

[0067] In some embodiments, for the specific structural settings of the second transmission assembly 22 and the third transmission assembly 23, the second active member 221 and the second driven member 222 are both provided with cylindrical spur gears, and the third active member 231 and the third driven member 232 are also both provided with cylindrical spur gears, and the switching member 24 can be provided with a synchronizer or a two-way clutch 344. For production cost considerations, the switching member 24 is preferably a synchronizer. In other embodiments, the second active member 221, the second driven member 222, the third active member 231 and the third driven member 232 can also be provided with sprockets or pulleys or other transmission structures, and the same applies to the active members and driven members described below, which will not be repeated.

[0068] In some embodiments, see Figure 1 and Figure 2 The first driving mechanism 20 further includes a second transmission shaft 25 fixed to the output end of the motor 21, and the second active member 221 and the third active member 231 are both fixed to the second transmission shaft 25. The second transmission shaft 25 and the first transmission shaft 121 are extended along the first direction X, and the second transmission shaft 25 and the first transmission shaft 121 are spaced apart along the second direction Y. The first direction X intersects with the second direction Y, and the motor 21 is located on the side of the second transmission assembly 22 and the third transmission assembly 23 close to the differential 11.

[0069] In order to ensure the synchronous rotation of the second active member 221 and the third active member 231 and the output end of the motor 21, a second transmission shaft 25 is fixedly arranged at the output end of the motor 21, and the second active member 221 and the third active member 231 are both fixed to the second transmission shaft 25. At the same time, in order to reduce the overall external dimensions of the entire hybrid drive power device, the first transmission shaft 121 and the second transmission shaft 25 are both extended along the first direction X, and the first transmission shaft 121 and the second transmission shaft 25 are arranged in parallel, so as to reduce the overall external dimensions of the entire hybrid drive power device in the second direction Y. The first transmission shaft 121 and the second transmission shaft 25 are arranged at intervals in the second direction Y, so that the first transmission shaft 121 can overlap with the second transmission shaft 25 in the second direction Y, so as to reduce the overall external dimensions of the entire hybrid drive power device in the first direction X.

[0070] In some embodiments, see Figure 1 and Figure 3 , the fourth transmission assembly 32 includes a fourth active member 321 and a fourth driven member 322. The first transmission assembly 12 includes a first transmission shaft 121, the second drive mechanism 30 includes a third transmission shaft 33 fixed to the output end of the engine 31, the fourth active member 321 is fixed to the third transmission shaft 33, and the fourth driven member 322 is fixed to the first transmission shaft 121. The fourth transmission assembly 32 also includes a power transmission assembly 34, the power transmission assembly 34 includes a first transmission member 341, a second transmission member 342, a fourth transmission shaft 343 and a clutch 344, wherein the first transmission member 341 is transmission-connected with the fourth active member 321, the second transmission member 342 is transmission-connected with the fourth driven member 322, the first transmission member 341 and the second transmission member 342 are respectively fixedly connected to the axial ends of the fourth transmission shaft 343, and the clutch 344 is arranged on the fourth transmission shaft 343 to transmit or interrupt the power between the first transmission member 341 and the second transmission member 342.

[0071] Regarding the transmission connection between the engine 31 and the differential 11, the first transmission assembly 12 includes a first transmission shaft 121 that is transmission-connected to the differential 11, the second drive mechanism 30 includes a third transmission shaft 33 that is fixed to the output end of the engine 31, and the fourth transmission assembly 32 includes a fourth active member 321 and a fourth driven member 322, the fourth active member 321 is fixed to the third transmission shaft 33, and the fourth driven member 322 is fixed to the first transmission shaft 121. In other words, the fourth active member 321, the third transmission shaft 33 and the output end of the engine 31 rotate synchronously, and the fourth driven member 322 rotates synchronously with the first transmission shaft 121. When the fourth active member 321 and the fourth driven member 322 are connected in power transmission, the driving force of the engine 31 can be transmitted to the first transmission shaft 121, and when the power transmission between the fourth active member 321 and the fourth driven member 322 is interrupted, the driving force of the engine 31 cannot be transmitted to the first transmission shaft 121.

[0072] The fourth transmission assembly 32 further includes a power transmission assembly 34, which can be connected or disconnected through a clutch 344 to a fourth transmission shaft 343 and a first transmission member 341 and a second transmission member 342 located at both ends of the fourth transmission shaft 343, respectively. The first transmission member 341 is in transmission connection with the fourth active member 321, and the second transmission member 342 is in transmission connection with the fourth driven member 322. When the clutch 344 is in a connected state, the driving force of the engine 31 can be sequentially transmitted to the differential 11 through the third transmission shaft 33, the fourth active member 321, the first transmission member 341, the fourth transmission shaft 343, the second transmission member 342, the fourth driven member 322 and the first transmission shaft 121; when the clutch 344 is in a disconnected state, the driving force of the engine 31 cannot be transmitted through the fourth transmission shaft 343, and thus cannot be transmitted to the differential 11.

[0073] In the above transmission structure, through the setting of the power transmission component 34, on the one hand, the on-off of the transmission power in the fourth transmission component 32 can be conveniently controlled; on the other hand, the fourth active member 321 and the fourth driven member 322 can be made to turn in the same direction, and the third transmission shaft 33 and the first transmission shaft 121 can be made to turn in the same direction, which is convenient for controlling the turning direction of the output end of the engine 31 and the turning direction of the input end of the differential 11. At the same time, when the hybrid drive device is installed on the vehicle for front drive, it is convenient to keep the turning direction of the engine 31 consistent with the forward direction of the vehicle. When the vehicle needs to move backward, the reverse rotation of the motor 21 and the low-speed and high-torque transmission of the second transmission component 22 can be used to achieve the backward movement of the vehicle.

[0074] In some embodiments, see Figure 1 and Figure 3 The third transmission shaft 33, the fourth transmission shaft 343 and the first transmission shaft 121 are all extended along the first direction X, and the third transmission shaft 33, the fourth transmission shaft 343 and the first transmission shaft 121 are spaced apart in the second direction Y, and the first direction X intersects the second direction Y. Along the second direction Y, the first transmission shaft 121 and the third transmission shaft 33 are located on both sides of the fourth transmission shaft 343.

[0075] The third transmission shaft 33, the fourth transmission shaft 343 and the first transmission shaft 121 are all arranged in parallel along the first direction X. When the overall size of the hybrid drive device is set, it is not necessary to consider the axial length of the transmission shaft of the third transmission shaft 33, the fourth transmission shaft 343 or the first transmission shaft 121 in the second direction Y. It is only necessary to consider the size of the transmission structure, such as the gear, so that the overall size of the hybrid drive device in the second direction Y can be reduced. At the same time, the third transmission shaft 33 is connected to the output end of the motor 21, the first transmission shaft 121 is connected to the input end of the differential 11, and the fourth transmission shaft 343 is used as the transmission shaft of the intermediate power. The first transmission shaft 121 and the third transmission shaft 33 are arranged on both sides of the fourth transmission shaft 343 in the second direction Y, so that the size of the transmission structure, such as the gear, can be reduced, and the production material cost can be reduced.

[0076] In some embodiments, see Figures 1 to 4 The first driving mechanism 20 includes a second transmission shaft 25 fixedly connected to the output end of the motor 21, and the second transmission shaft 25 is coaxially arranged with the fourth transmission shaft 343. Along the first direction X, the engine 31, the third transmission shaft 33, the motor 21 and the second transmission shaft 25 are arranged in sequence.

[0077] When setting the overall size of the hybrid drive device, the second transmission shaft 25 is connected to the first transmission shaft 121 through the second transmission assembly 22 or the third transmission assembly 23, and the fourth transmission shaft 343 is connected to the first transmission shaft 121 through the second transmission member 342 and the fourth driven member 322, which is equivalent to single-stage transmission between the second transmission shaft 25 and the first transmission shaft 121, and between the fourth transmission shaft 343 and the first transmission shaft 121. Therefore, considering the overall size of the entire hybrid drive device and the internal rotational inertia of the entire hybrid drive device, the second transmission shaft 25 and the fourth transmission shaft 343 are set to be coaxial, which can facilitate the control of the overall size of the entire hybrid drive device in the second direction Y. At the same time, along the first direction X, the engine 31, the third transmission shaft 33, the motor 21 and the second transmission shaft 25 are arranged in sequence, which can reasonably arrange the weight distribution and space size of the entire hybrid drive device as a whole, and make full use of the size of the entire hybrid drive device in the first direction X.

[0078] In some embodiments, see Figure 1 and Figure 4 The hybrid drive device further includes a power generation assembly 40, which includes a generator 41 and a fifth transmission assembly 42 which is transmission-connected between the generator 41 and the engine 31, and the fifth transmission assembly 42 is a speed-increasing transmission.

[0079] The power generation component 40 is used to convert the kinetic energy of the engine 31 into electrical energy. The power generation component 40 includes a generator 41 and a fifth transmission component 42 that is transmission-connected between the generator 41 and the engine 31. Through the fifth transmission component 42, the power of the engine 31 can be transmitted to the inside of the generator 41 and then converted into electrical energy inside the generator 41.

[0080] Furthermore, the fifth transmission assembly 42 is configured as a speed-increasing transmission, that is, under the transmission of the fifth transmission assembly 42, the engine 31 rotating at a relatively low speed can drive the generator 41 to rotate at a relatively high speed, thereby ensuring that both the engine 31 and the generator 41 are in a high-efficiency speed range, thereby improving the power utilization efficiency of the engine 31.

[0081] In some embodiments, see Figure 1 and Figure 4 The output end of the engine 31 is connected to the third transmission shaft 33, and the generator 41 is connected to the fifth transmission shaft 43. The fifth transmission assembly 42 includes a fifth driving member 421 and a fifth driven member 422 that are in transmission connection. The fifth driving member 421 is fixed to the third transmission shaft 33, and the fifth driven member 422 is fixed to the fifth transmission shaft 43. The third transmission shaft 33 and the fifth transmission shaft 43 are extended along the first direction X, and the third transmission shaft 33 and the fifth transmission shaft 43 are spaced apart in the second direction Y.

[0082] The third transmission shaft 33 rotates synchronously with the output end of the engine 31, and the fifth transmission shaft 43 rotates synchronously with the input end of the generator 41. The fifth driving member 421 is fixed to the third transmission shaft 33 and rotates synchronously with the third transmission shaft 33, and the fifth driven member 422 is fixed to the fifth transmission shaft 43 and rotates synchronously with the fifth transmission shaft 43. The third transmission shaft 33 and the fifth transmission shaft 43 are arranged in parallel and spaced apart. In the second direction Y, it is not necessary to consider the axial length of the third transmission shaft 33 and the fifth transmission shaft 43, and only the size of the transmission structure such as the gear needs to be considered, which can reduce the overall size of the hybrid drive device in the second direction Y.

[0083] In some embodiments, see Figures 1 to 4 In order to make the overall weight of the entire hybrid drive device balanced and facilitate the setting of the transmission structure, the engine 31, the generator 41 and the motor 21 are arranged in sequence along the first direction X, and the differential 11, the motor 21, the engine 31 and the generator 41 are arranged in sequence along the second direction Y. In the actual setting process, the output end of the engine 31 and the output end of the motor 21 face the same side along the first direction X, and the output end of the engine 31 and the input end of the generator 41 are arranged opposite to each other in the first direction X. In the second direction Y, the differential 11 and the first transmission shaft 121 are used as references. Since the motor 21 is connected to the first transmission shaft 121 by primary transmission, on one side of the second direction Y, the motor 21 is closer to the first transmission shaft 121, and the engine 31 is connected to the first transmission shaft 121 by secondary transmission through the fourth transmission assembly 32. Compared with the motor 21, the engine 31 is arranged away from the first transmission shaft 121, and the generator 41 is not connected to the driving structure and is located on the side of the engine 31 away from the first transmission shaft 121.

[0084] In a second aspect, an embodiment of the present application provides a vehicle, the vehicle comprising the hybrid power drive device provided in the first aspect of the present application, wherein the first direction X of the hybrid power drive device is the length direction of the vehicle, and the second direction Y of the hybrid power drive device is the width direction of the vehicle. The vehicle has all the beneficial effects of the hybrid power drive device described above, which will not be described in detail herein.

[0085] Specifically, the first transmission assembly 12 in the hybrid drive device reverses the power through two bevel gears and stably transmits it to the differential 11, and the differential 11 is connected to the driving half shafts of the wheels on both sides of the vehicle through splines. The engine 31 in the hybrid drive device is longitudinally arranged, the first direction X of the hybrid drive device is the length direction of the vehicle, and the second direction Y of the hybrid drive device is the width direction of the vehicle, so as to avoid the problem of insufficient dimensions in the width direction of the front cabin of the vehicle and effectively utilize the dimensions in the length direction of the front cabin of the vehicle.

[0086] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A hybrid power drive device, characterized in that: include: A differential mechanism, the differential mechanism comprising a differential and a first transmission assembly drivingly connected to the differential; A first driving mechanism, the first driving mechanism comprising a motor and a second transmission assembly and a third transmission assembly transmission-connected to an output end of the motor, wherein the second transmission assembly has a different transmission ratio from the third transmission assembly; A second driving mechanism, the second driving mechanism comprising an engine and a fourth transmission assembly drivingly connected to an output end of the engine, the fourth transmission assembly being detachably drivingly connected to the first transmission assembly; Wherein, the hybrid power driving device is configured such that the second transmission assembly and the third transmission assembly can be detachably connected to the first transmission assembly.

2. The hybrid drive device according to claim 1, characterized in that: The first transmission assembly includes a first transmission shaft; The second transmission assembly comprises a second active member and a second driven member in transmission connection, the second active member moves synchronously with the output end of the motor, and the second driven member is sleeved on the first transmission shaft at intervals; The third transmission assembly comprises a third active member and a third driven member in transmission connection, the third active member moves synchronously with the output end of the motor, and the third driven member is sleeved on the first transmission shaft at intervals; The first driving mechanism further comprises a switching member anti-rotatably connected to the first transmission shaft, wherein the switching member is movably arranged relative to the first transmission shaft along the axial direction of the first transmission shaft so as to be fixed to or separated from the second driven member or the third driven member.

3. The hybrid drive device according to claim 2, characterized in that: The first driving mechanism further comprises a second transmission shaft fixed to the output end of the motor, and the second active member and the third active member are fixed to the second transmission shaft; Among them, the second transmission shaft and the first transmission shaft are both extended along the first direction, the second transmission shaft and the first transmission shaft are spaced apart along the second direction, the first direction intersects with the second direction, and the electric motor is located on the side of the second transmission assembly and the third transmission assembly close to the differential.

4. The hybrid drive device according to claim 1, characterized in that: The fourth transmission assembly includes a fourth driving member and a fourth driven member; The first transmission assembly includes a first transmission shaft, and the second drive mechanism includes a third transmission shaft fixed to the output end of the engine; The fourth active member is fixed to the third transmission shaft, and the fourth driven member is fixed to the first transmission shaft; The fourth transmission assembly further includes a power transmission assembly, and the power transmission assembly includes: A first transmission member, the first transmission member is transmission-connected to the fourth active member; a second transmission member, the second transmission member being drivingly connected to the fourth driven member; A fourth transmission shaft, the first transmission member and the second transmission member are fixedly connected to two axial ends of the fourth transmission shaft respectively; A clutch is arranged on the fourth transmission shaft to transmit or interrupt power between the first transmission member and the second transmission member.

5. The hybrid drive device according to claim 4, characterized in that: The third transmission shaft, the fourth transmission shaft and the first transmission shaft are all extended along the first direction, the third transmission shaft, the fourth transmission shaft and the first transmission shaft are spaced apart in the second direction, and the first direction intersects with the second direction; Along the second direction, the first transmission shaft and the third transmission shaft are located on both sides of the fourth transmission shaft.

6. The hybrid drive device according to claim 5, characterized in that: The first driving mechanism comprises a second transmission shaft fixed to the output end of the motor, and the second transmission shaft is coaxially arranged with the fourth transmission shaft; Along the first direction, the engine, the third transmission shaft, the electric motor and the second transmission shaft are arranged in sequence.

7. The hybrid drive device according to claim 1, characterized in that: It also includes a power generation component, which includes a generator and a fifth transmission component that is transmission-connected between the generator and the engine, and the fifth transmission component is a speed-increasing transmission.

8. The hybrid drive device according to claim 7, characterized in that: The output end of the engine is connected to a third transmission shaft, and the generator is connected to a fifth transmission shaft; The fifth transmission assembly comprises a fifth active member and a fifth driven member in transmission connection, the fifth active member is fixed to the third transmission shaft, and the fifth driven member is fixed to the fifth transmission shaft; The third transmission shaft and the fifth transmission shaft are both extended along the first direction, and the third transmission shaft and the fifth transmission shaft are spaced apart in the second direction.

9. The hybrid drive device according to claim 8, characterized in that: Along the first direction, the engine, the generator and the motor are arranged in sequence; Along the second direction, the differential, the motor, the engine and the generator are arranged in sequence.

10. A vehicle, characterized in that: A hybrid power drive device comprising any one of claims 1 to 9.

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