Driving system and vehicle

Abstract

The utility model relates to a driving system and a vehicle. The driving system comprises a first output device, a second output device and a first transmission mechanism. The first output device has a first output shaft. The first output device comprises a power generation mechanism and a driving mechanism which are integrally arranged. The driving mechanism is configured to drive the first output shaft to rotate. The power generation mechanism is configured to transmit electric energy to the power battery. The second output device has a second output shaft. The second output shaft and the first output shaft are oppositely arranged. The first transmission mechanism is connected between the first output shaft and the second output shaft. The first transmission mechanism is configured to transmit torque of the first output shaft to the first wheel. Alternatively, the first transmission mechanism is configured to transmit the torque of the second output shaft to the first output shaft. Therefore, motors in the driving system can be reduced, so that the weight is reduced, the cost is saved, a transmission structure is optimized, the occupied space of the driving system is reduced, and a larger arrangement space is reserved for a power battery.

Description

Technical Field

[0001] This application relates to the field of drive technology, and in particular, to a drive system and a vehicle. Background Art

[0002] In the field of new energy vehicles, it generally includes pure electric vehicles, range-extended electric vehicles, and plug-in hybrid vehicles. For range-extended electric vehicles and plug-in hybrid vehicles, there are two motors and one engine in the front drive system, which causes the front drive system to occupy a large space, affects the layout of the power battery, and makes the design of the transmission structure more complex. Summary of the Utility Model

[0003] An embodiment of this application provides a drive system and a vehicle, enabling the first output device to integrate power generation and drive functions, which can reduce weight, save costs, reduce space occupancy, and reserve a larger layout space for the power battery to at least partially solve the above technical problems.

[0004] To achieve the above object, according to the first aspect of this application, a drive system is provided, including:

[0005] A first output device having a first output shaft, the first output device includes an integrally arranged power generation mechanism and a drive mechanism, the drive mechanism is configured to drive the first output shaft to rotate, and the power generation mechanism is configured to deliver electric energy to the power battery;

[0006] A second output device having a second output shaft, the second output shaft is disposed opposite to the first output shaft;

[0007] A first transmission mechanism connected between the first output shaft and the second output shaft, the first transmission mechanism is configured to transmit the torque of the first output shaft to the first wheel, or transmit the torque of the second output shaft to the first output shaft.

[0008] Optionally, the first transmission mechanism has a first state and a second state. In the first state, the first transmission mechanism is used to transmissionally connect the first output shaft and the first wheel to transmit the torque of the first output shaft to the first wheel. In the second state, the first transmission mechanism is used to transmissionally connect the first output shaft and the second output shaft to transmit the torque of the second output shaft to the first output shaft.

[0009] Optionally, the first transmission mechanism includes:

[0010] A first shifter coaxially connected to the first output shaft;

[0011] A first transmission member rotatably sleeved on the first output shaft;

[0012] A second transmission member, drivingly connected to the first transmission member, the second transmission member being configured to drive the first wheel to rotate;

[0013] Wherein, in the first state, the first shifter is drivingly connected to the first transmission member, and in the second state, the first shifter is drivingly connected to the second output shaft.

[0014] Optionally, the first transmission mechanism includes:

[0015] A clutch, installed on the second output shaft, the clutch dividing the second output shaft into a first section and a second section, the second section being connected to the second output device;

[0016] A first shifter, one end coaxially connected to the first output shaft and the other end coaxially connected to the first section;

[0017] A first transmission member, rotatably sleeved on the first section;

[0018] A second transmission member, drivingly connected to the first transmission member, the second transmission member being configured to drive the first wheel to rotate;

[0019] Wherein, in the first state, the first shifter is drivingly connected to the first transmission member, and the clutch is disengaged so that the first section is separated from the second section, and in the second state, the first shifter is drivingly connected to the second output shaft, and the clutch is engaged so that the first section and the second section are coaxially driven.

[0020] Optionally, the first transmission member includes a first transmission gear and a second transmission gear connected coaxially, the first transmission gear being drivingly connected to the second transmission member, both the first transmission gear and the second transmission gear being rotatably sleeved on the first output shaft, or both the first transmission gear and the second transmission gear being rotatably sleeved on the first section.

[0021] Optionally, the drive system further includes:

[0022] A differential, one end connected to the first wheel through a first drive shaft and the other end connected to a second wheel through a second drive shaft;

[0023] Wherein, the second transmission member is disposed on the first drive shaft, the differential has a first mode and a second mode, in the first mode, the differential is used to independently rotate the first wheel and / or the second wheel, and in the second mode, the differential is used to drive the first wheel and the second wheel to rotate.

[0024] Optionally, the first transmission mechanism is drivingly connected to the differential, and / or the first transmission mechanism is drivingly connected to the first drive shaft.

[0025] Optionally, the first transmission mechanism further includes:

[0026] A third transmission member rotatably sleeved on the first output shaft, and the third transmission member is drivingly connected to the differential;

[0027] Wherein, the first transmission mechanism further has a third state, in which the first shifter of the first transmission mechanism is drivingly connected to the third transmission member.

[0028] Optionally, the drive system further includes:

[0029] A third output device having a third output shaft;

[0030] A second transmission mechanism drivingly connected to the third output shaft and the differential.

[0031] Optionally, the second transmission mechanism has a fourth state and a fifth state. In the fourth state, the second transmission mechanism is drivingly connected to the second drive shaft to drive the second wheel to rotate. In the fifth state, the second transmission mechanism is drivingly connected to the differential to drive the first wheel and the second wheel to rotate synchronously.

[0032] Optionally, the second transmission mechanism includes:

[0033] A second shifter coaxially connected to the third output shaft;

[0034] Wherein, in the fourth state, the second shifter is drivingly connected to the second drive shaft, and in the fifth state, the second shifter is drivingly connected to the differential.

[0035] Optionally, the second transmission mechanism further includes:

[0036] A fourth transmission member rotatably sleeved on the third output shaft, and the fourth transmission member is drivingly connected to the second drive shaft;

[0037] A fifth transmission member rotatably sleeved on the third output shaft, and the fifth transmission member is drivingly connected to the differential;

[0038] Wherein, the fourth transmission member and the fifth transmission member are respectively located on opposite sides of the second shifter. In the fourth state, the second shifter is drivingly connected to the fourth transmission member, and in the fifth state, the second shifter is drivingly connected to the fifth transmission member.

[0039] According to a second aspect of the present application, there is provided a vehicle including the drive system as described above.

[0040] For the drive system and the vehicle according to the embodiments of the present application, by integrating the power generation function and the drive function in the first output device, when the first output device is used as a drive mechanism, the first output shaft drives the first wheel to rotate through the first transmission mechanism, thereby realizing the drive of the vehicle; when the first output device is used as a power generation mechanism, the second output shaft of the second output device transmits torque to the first output shaft through the first transmission mechanism, and based on the rotation of the first output shaft, the power generation function of the first output device is realized, and electric energy is supplied to the power battery. Thus, the motors in the drive system can be reduced, thereby reducing the weight, saving costs, optimizing the transmission structure, reducing the occupation of the drive system space, and reserving a larger layout space for the power battery.

[0041] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0043] In order to more fully understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, where the same reference numerals in the following description represent the same parts.

[0044] Figure 1 is a schematic structural diagram of a vehicle drive system in the prior art;

[0045] Figure 2 is one of the schematic structural diagrams of the drive system provided in the exemplary embodiment of the present disclosure;

[0046] Figure 3 is Figure 2 the schematic structural diagram when the drive system in

[0047] Figure 4 is another schematic structural diagram of the drive system provided in the exemplary embodiment of the present disclosure;

[0048] Figure 5 is Figure 4 the schematic structural diagram when the drive system in

[0049] DESCRIPTION OF REFERENCE NUMERALS:

[0050] 1. First output device; 11. First output shaft;

[0051] 2. Second output device; 21. Second output shaft; 211. First section; 212. Second section;

[0052] 3. First transmission mechanism; 31. First shifter; 32. First transmission component; 321. First transmission gear; 322. Second transmission gear; 33. Second transmission component; 34. Clutch; 35. Shock absorber; 36. Third transmission component;

[0053] 4. Differential; 41. First drive shaft; 42. Second drive shaft;

[0054] 5. Third output device; 51. Third output shaft;

[0055] 6. Second transmission mechanism; 61. Second shifter; 62. Fourth transmission component; 63. Fifth transmission component;

[0056] 71. Power battery; 72. First wheel; 73. Second wheel;

[0057] 8. Rear-wheel drive system;

[0058] 91. Motor; 92. Engine. Detailed implementation manners

[0059] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0060] As Figure 1 shown, in related technologies, in range-extended electric vehicles and plug-in hybrid vehicles, there are two motors 91 and one engine 92 in the front-wheel drive system. As a result, the front-wheel drive system occupies a relatively large space, affecting the layout of the power battery and making the design of the transmission structure relatively complex.

[0061] Please refer to Figures 2 to 5, To solve the above technical problems, the present application provides a drive system. The drive system includes a first output device 1, a second output device 2, and a first transmission mechanism 3. Among them, the first output device 1 has a first output shaft 11. The first output device 1 includes an integrated power generation mechanism and a drive mechanism. The drive mechanism is configured to drive the first output shaft 11 to rotate. The power generation mechanism is configured to deliver electric energy to the power battery 71. The second output device 2 has a second output shaft 21. The second output shaft 21 is disposed opposite to the first output shaft 11. The first transmission mechanism 3 is connected between the first output shaft 11 and the second output shaft 21. The first transmission mechanism 3 is configured to transmit the torque of the first output shaft 11 to the first wheel 72 to drive the first wheel 72 to rotate. Alternatively, the first transmission mechanism 3 is configured to transmit the torque of the second output shaft 21 to the first output shaft 11, thereby delivering electric energy to the power battery 71.

[0062] In the embodiment of the present application, by integrating the power generation function and the drive function in the first output device 1, when the first output device 1 is used as a drive mechanism, the first output shaft 11 drives the first wheel 72 to rotate through the first transmission mechanism 3, thereby realizing the drive of the vehicle; when the first output device 1 is used as a power generation mechanism, the second output shaft 21 of the second output device 2 transmits the torque to the first output shaft 11 through the first transmission mechanism 3, and based on the rotation of the first output shaft 11, the power generation function of the first output device 1 is realized, and electric energy is delivered to the power battery 71. Thus, the motors in the drive system can be reduced, thereby reducing the weight, saving costs, optimizing the transmission structure, reducing the occupancy of the drive system space, and reserving a larger layout space for the power battery 71.

[0063] It can be understood that based on the fact that the first output device 1 includes an integrated power generation mechanism and a drive mechanism. When it is necessary to drive the first output shaft 11 to rotate to make the first wheel 72 rotate, the first output device 1 can be switched to the drive mode. At this time, the first output device 1 drives the first output shaft 11 to rotate, and the torque of the first output shaft 11 can be transmitted to the first wheel 72 through the first transmission mechanism 3, thereby realizing the rotation of the first wheel 72. When it is necessary to deliver electric energy to the power battery 71, the first output device 1 can be switched to the charging mode. At this time, the second output shaft 21 of the second output device 2 drives the first output shaft 11 to rotate through the first transmission mechanism 3, and the rotation of the first output shaft 11 can cause the power generation mechanism to generate electric energy, thereby charging the power battery 71.

[0064] The drive system in the embodiment of the present application is applicable to range-extended electric vehicles and plug-in hybrid electric vehicles. The second output device 2 is an engine.

[0065] The drive system in the embodiment of the present application can be used as a front-wheel drive system or a rear-wheel drive system 8. In the embodiment of the present application, it is preferably used as a front-wheel drive system.

[0066] Among them, the first output shaft 11 can be coaxially connected to the first output device 1. Alternatively, the first output shaft 11 can be drivingly connected to the first output device 1 through a transmission mechanism such as a gear. The second output shaft 21 can be coaxially connected to the second output device 2. Alternatively, the second output shaft 21 can be drivingly connected to the second output device 2 through a transmission mechanism such as a gear.

[0067] In some embodiments, the first transmission mechanism 3 has a first state and a second state. In the first state, the first transmission mechanism 3 is used to drivingly connect the first output shaft 11 and the first wheel 72 to transmit the torque of the first output shaft 11 to the first wheel 72. In the second state, the first transmission mechanism 3 is used to drivingly connect the first output shaft 11 and the second output shaft 21 to transmit the torque of the second output shaft 21 to the first output shaft 11.

[0068] It can be understood that when the first transmission mechanism 3 is in the first state, the first transmission mechanism 3 can drivingly connect the first output shaft 11 and the first wheel 72, so as to transmit the torque of the first output shaft 11 to the first wheel 72. Specifically, the first transmission mechanism 3 can transmit the torque of the first output shaft 11 to the first drive shaft 41, so as to drive the first wheel 72 to rotate by using the first drive shaft 41. When the first transmission mechanism 3 is in the second state, the second transmission mechanism 6 can drivingly connect the first output shaft 11 and the second output shaft 21, so as to transmit the torque of the second output shaft 21 to the first output shaft 11. At this time, the first output shaft 11 rotates with the second output shaft 21, so that the first output device 1 outputs electric energy to the power battery 71. For example, when the first transmission mechanism 3 is in the second state, the first transmission mechanism 3 can coaxially connect the first output shaft 11 and the second output shaft 21, so as to drive the first output shaft 11 and the second output shaft 21 to rotate coaxially and synchronously.

[0069] In some embodiments, the first transmission mechanism 3 includes a first shifter 31, a first transmission member 32 and a second transmission member 33. The first shifter 31 is coaxially connected to the first output shaft 11. The first transmission member 32 is rotatably sleeved on the first output shaft 11. The second transmission member 33 is drivingly connected to the first transmission member 32. The second transmission member 33 is configured to drive the first wheel 72 to rotate. Among them, in the first state, the first shifter 31 is drivingly connected to the first transmission member 32. In the second state, the first shifter 31 is drivingly connected to the second output shaft 21.

[0070] It can be understood that the first shift device 31 can be adjusted based on its own shifting to enable it to be in transmission connection with the first transmission member 32 or in transmission connection with the second output shaft 21. When the first shift device 31 is in transmission connection with the first transmission member 32, the first transmission mechanism 3 is in the first state. At this time, the rotation of the first output shaft 11 of the first output device 1 can drive the first shift device 31 to rotate, thereby driving the first transmission member 32 to rotate. Since the first transmission member 32 is in transmission connection with the second transmission member 33, the first transmission member 32 can transmit torque to the second transmission member 33, thereby driving the first wheel 72 to rotate. When the first shift device 31 is in transmission connection with the second output shaft 21, the first transmission mechanism 3 is in the second state. At this time, the rotation of the second output shaft 21 of the second output device 2 can drive the first shift device 31 to rotate, thereby driving the first output shaft 11 to rotate. Thus, the first output device 1 can output electric energy to the power battery 71.

[0071] As Figure 2 and Figure 3 shown, the first shift device 31 can have shiftable gears. When the gear moves to the left, the gear meshes with the first transmission member 32. At this time, the first shift device 31 is in transmission connection with the first transmission member 32. When the gear moves to the right, the first shift device 31 meshes with the transmission gear on the second output shaft 21. At this time, the first shift device 31 is in transmission connection with the second output shaft 21.

[0072] In some embodiments, the first transmission member 32 includes a first transmission gear 321 and a second transmission gear 322 that are coaxially connected. The first transmission gear 321 is in transmission connection with the second transmission member 33. Both the first transmission gear 321 and the second transmission gear 322 are rotatably sleeved on the first output shaft 11.

[0073] It can be understood that the first transmission gear 321 and the second transmission gear 322 are rotatably sleeved on the first output shaft 11. When in the first state, the first transmission gear 321 meshes with the first shift device 31, then the first transmission gear 321 and the second transmission gear 322 can rotate with the first output shaft 11 under the action of the first shift device 31 and drive the first drive shaft 41 and the first wheel 72 to rotate. When in the second state, the first shift device 31 is away from the first transmission gear 321, then the first transmission gear 321 and the second transmission gear 322 will not rotate with the first output shaft 11.

[0074] In some embodiments, the first transmission gear 321 and the second transmission gear 322 are integrally formed. The diameter of the first transmission gear 321 is larger than the diameter of the second transmission gear 322.

[0075] In some embodiments, the first transmission mechanism 3 includes a clutch 34, a first shifter 31, a first transmission member 32, and a second transmission member 33. The clutch 34 is mounted on the second output shaft 21. The clutch 34 divides the second output shaft 21 into a first section 211 and a second section 212. The second section 212 is connected to the second output device 2. One end of the first shifter 31 is coaxially connected to the first output shaft 11, and the other end is coaxially connected to the first section 211. The first transmission member 32 is rotatably sleeved on the first section 211. The second transmission member 33 is drivingly connected to the first transmission member 32, and the second transmission member 33 is configured to drive the first wheel 72 to rotate. Wherein, in the first state, the first shifter 31 is drivingly connected to the first transmission member 32, and the clutch 34 is disengaged, so that the first section 211 is separated from the second section 212. In the second state, the first shifter 31 is drivingly connected to the second output shaft 21, and the clutch 34 is engaged, so that the first section 211 and the second section 212 are coaxially driven.

[0076] It can be understood that the first shifter 31 can be adjusted based on its own shifting to enable it to be drivingly connected to the first transmission member 32 or the second output shaft 21. When the first transmission mechanism 3 is in the first state, the first shifter 31 is drivingly connected to the first transmission member 32, and the clutch 34 is disengaged. At this time, the rotation of the first output shaft 11 of the first output device 1 can drive the first shifter 31 to rotate, thereby driving the first transmission member 32 to rotate. Since the first transmission member 32 is drivingly connected to the second transmission member 33, the first transmission member 32 can transmit torque to the second transmission member 33, thereby driving the first wheel 72 to rotate. During this process, the first section 211 can rotate with the first shifter 31. Since the clutch 34 is disengaged, the second section 212 will remain stationary and will not interfere with the second output device 2. When the first transmission mechanism 3 is in the second state, the first shifter 31 is drivingly connected to the second output shaft 21, and the clutch 34 is engaged. At this time, the second section 212 of the second output device 2 can drive the first section 211 to rotate coaxially through the clutch 34, and the rotation of the first section 211 can drive the first shifter 31 to rotate, thereby driving the first output shaft 11 to rotate. Thus, the first output device 1 can output electrical energy to the power battery 71.

[0077] Such as Figure 4 and Figure 5As shown, the first shift lever 31 may have shiftable gears. When the gear is in the middle position, the gear does not mesh with the transmission gears at both ends. At this time, one end of the first shift lever 31 is coaxially connected to the first output shaft 11, and the other end is coaxially connected to the first section 211. Thus, when the clutch 34 is in the conducting state, the first output shaft 11 and the second output shaft 21 can be drivingly connected. When the gear moves to the right, the first shift lever 31 meshes with the first transmission member 32. At this time, the first shift lever 31 is drivingly connected to the first transmission member 32 through the first section 211, thereby driving the first wheel 72 to rotate. When the gear moves to the left, the first shift lever 31 meshes with the third transmission member 36. At this time, the first shift lever 31 is drivingly connected to the differential 4, thereby using the differential 4 to drive the first wheel 72 and the second wheel 73 to rotate synchronously.

[0078] In some embodiments, the first transmission member 32 includes a first transmission gear 321 and a second transmission gear 322 that are coaxially connected. The first transmission gear 321 is drivingly connected to the second transmission member 33. Both the first transmission gear 321 and the second transmission gear 322 are rotatably sleeved on the first section 211.

[0079] It can be understood that the first transmission gear 321 and the second transmission gear 322 are rotatably sleeved on the first section 211. When in the first state, the first transmission gear 321 meshes with the first shift lever 31, then the first transmission gear 321 and the second transmission gear 322 can rotate with the first section 211 under the action of the first shift lever 31, and drive the first drive shaft 41 and the first wheel 72 to rotate. When in the second state, the first shift lever 31 is away from the first transmission gear 321, then the first transmission gear 321 and the second transmission gear 322 will not rotate with the first section 211.

[0080] In some embodiments, the first transmission gear 321 and the second transmission gear 322 are integrally formed. The diameter of the first transmission gear 321 is larger than the diameter of the second transmission gear 322.

[0081] Wherein, a shock absorber 35 may be provided on the second output shaft 21. The shock absorber 35 can achieve the effects of shock absorption, vibration isolation and torque limitation, thereby protecting the first output device 1 and the second output device 2. Specifically, the shock absorber 35 can be installed on the second section 212.

[0082] In some embodiments, the drive system further includes a differential 4. One end of the differential 4 is connected to the first wheel 72 through the first drive shaft 41, and the other end is connected to the second wheel 73 through the second drive shaft 42. Wherein, the second transmission member 33 is disposed on the first drive shaft 41. The differential 4 has a first mode and a second mode. In the first mode, the differential 4 is used to make the first wheel 72 and / or the second wheel 73 rotate independently. In the second mode, the differential 4 is used to drive the first wheel 72 and the second wheel 73 to rotate.

[0083] It can be understood that the first wheel 72 and the second wheel 73 can be the right wheel and the left wheel in the front-wheel drive system respectively. On the one hand, the differential 4 can allow the first wheel 72 and the second wheel 73 to rotate at different speeds, thereby reducing the sliding and friction between the wheels and the ground. On the other hand, the differential 4 can also drive the first wheel 72 and the second wheel 73 to rotate, so that the drive system has different drive modes. Among them, the first wheel 72 and the second wheel 73 can rotate synchronously under the drive of the differential 4. For example, the rotational speeds of the first wheel 72 and the second wheel 73 are the same. Or, the first wheel 72 and the second wheel 73 can also rotate asynchronously under the drive of the differential 4. For example, the rotational speeds of the first wheel 72 and the second wheel 73 are different.

[0084] When the differential 4 is in the first mode, the first wheel 72 can be driven to rotate by the first output device 1, and the second wheel 73 can be driven to rotate by the third output device 5. At this time, the first wheel 72 and the second wheel 73 rotate independently. When the differential 4 is in the second mode, under the action of at least one of the first output device 1, the second output device 2 and the third output device 5, the differential 4 can drive the first drive shaft 41 and the second drive shaft 42 at both ends to rotate respectively, thereby enabling the first wheel 72 and the second wheel 73 to rotate synchronously.

[0085] In some embodiments, the first transmission mechanism 3 is in transmission connection with the differential 4. And / or, the first transmission mechanism 3 is in transmission connection with the first drive shaft 41.

[0086] It can be understood that when the first transmission mechanism 3 is in transmission connection with the differential 4, the first output device 1 and / or the second output device 2 can transmit torque to the differential 4 through the first transmission mechanism 3. Thus, the differential 4 can be used to drive the first drive shaft 41 and the second drive shaft 42 at both ends to rotate, enabling the first wheel 72 and the second wheel 73 to rotate synchronously. When the first transmission mechanism 3 is in transmission connection with the first drive shaft 41, the first output device 1 and / or the second output device 2 can transmit torque to the first drive shaft 41 through the first transmission mechanism 3. Thus, the first wheel 72 can be driven to rotate independently.

[0087] In some embodiments, the first transmission mechanism 3 further includes a third transmission member 36. The third transmission member 36 is rotatably sleeved on the first output shaft 11. The third transmission member 36 is in transmission connection with the differential 4. Among them, the first transmission mechanism 3 further has a third state. In the third state, the first shifter 31 of the first transmission mechanism 3 is in transmission connection with the third transmission member 36.

[0088] As Figure 4As shown, when the gear of the first shift device 31 moves to the left, the first shift device 31 meshes with the third transmission member 36. At this time, the first shift device 31 is in transmission connection with the differential 4, so as to drive the first wheel 72 and the second wheel 73 to rotate synchronously by using the differential 4. Thus, the first wheel 72 and the second wheel 73 can be driven to rotate synchronously by driving the first transmission mechanism 3 through the first output device 1 and / or the second output device 2, thereby enriching the driving modes of the drive system.

[0089] Based on the third rotating member being rotationally sleeved on the first output shaft 11, when the first transmission member 32 is not in the third state, the third rotating member does not rotate with the first output shaft 11.

[0090] For the case with the third state, it is applicable to the first transmission mechanism 3 having a clutch 34. And when the first transmission mechanism 3 is in the third state, the clutch 34 is in a conducting state.

[0091] In some embodiments, the drive system further includes a third output device 5 and a second transmission mechanism 6. The third output device 5 has a third output shaft 51. The second transmission mechanism 6 is in transmission connection with the third output shaft 51, and the second transmission mechanism 6 is also in transmission connection with the differential 4 and / or the second drive shaft 42.

[0092] It can be understood that the third output device 5 can transmit the torque of the third output shaft 51 to the differential 4 or the second drive shaft 42 through the second transmission mechanism 6. When the third output device 5 transmits the torque of the third output shaft 51 to the differential 4 through the second transmission mechanism 6, the first drive shaft 41 and the second drive shaft 42 located at both ends of the differential 4 can be driven to rotate by the differential 4, so as to drive the first wheel 72 and the second wheel 73 to rotate synchronously. When the third output device 5 transmits the torque of the third output shaft 51 to the second drive shaft 42 through the second transmission mechanism 6, the second wheel 73 can rotate independently.

[0093] Wherein, the third output shaft 51 can be coaxially connected to the third output device 5. Or, the third output shaft 51 can be in transmission connection with the third output device 5 through a transmission mechanism such as a gear.

[0094] In some embodiments, the second transmission mechanism 6 has a fourth state and a fifth state. In the fourth state, the second transmission mechanism 6 is in transmission connection with the second drive shaft 42 and is used to drive the second wheel 73 to rotate. In the fifth state, the second transmission mechanism 6 is in transmission connection with the differential 4 and is used to drive the first wheel 72 and the second wheel 73 to rotate synchronously.

[0095] It can be understood that when the second transmission mechanism 6 is in the fourth state, the second transmission mechanism 6 can transmit the torque of the third output shaft 51 to the second drive shaft 42, so as to drive the second wheel 73 to rotate independently. When the second transmission mechanism 6 is in the fifth state, the second transmission mechanism 6 can transmit the torque of the third output shaft 51 to the differential 4, so as to drive the first wheel 72 and the second wheel 73 to rotate synchronously.

[0096] In some embodiments, the second transmission mechanism 6 includes a second shifter 61. The second shifter 61 is coaxially connected to the third output shaft 51. Among them, in the fourth state, the second shifter 61 is in transmission connection with the second drive shaft 42. In the fifth state, the second shifter 61 is in transmission connection with the differential 4.

[0097] It can be understood that the second shifter 61 can be in transmission connection with the second drive shaft 42 or the differential 4 based on its own shifting adjustment. When the second transmission mechanism 6 is in the fourth state, the second shifter 61 is in transmission connection with the second drive shaft 42, so as to transmit the torque of the third output shaft 51 to the second drive shaft 42 to drive the second wheel 73 to rotate independently. When the second transmission mechanism 6 is in the fifth state, the second shifter 61 is in transmission connection with the differential 4, so as to transmit the torque of the third output shaft 51 to the differential 4 to drive the first wheel 72 and the second wheel 73 to rotate synchronously.

[0098] In some embodiments, the second transmission mechanism 6 further includes a fourth transmission member 62 and a fifth transmission member 63. The fourth transmission member 62 is rotatably sleeved on the third output shaft 51. The fourth transmission member 62 is in transmission connection with the second drive shaft 42. The fifth transmission member 63 is rotatably sleeved on the third output shaft 51. The fifth transmission member 63 is in transmission connection with the differential 4. Among them, the fourth transmission member 62 and the fifth transmission member 63 are respectively located on opposite sides of the second shifter 61. In the fourth state, the second shifter 61 is in transmission connection with the fourth transmission member 62. In the fifth state, the second shifter 61 is in transmission connection with the fifth transmission member 63.

[0099] Such as Figure 2 and Figure 4As shown, the fourth transmission member 62 and the fifth transmission member 63 can be respectively located on the left and right sides of the second shifter 61. The second shifter 61 has shiftable gears. When the gear moves to the left, the gear meshes with the fourth transmission member 62. At this time, the second shifter 61 is in transmission connection with the fourth transmission member 62, and the fourth transmission member 62 can rotate with the third output shaft 51, while the fifth transmission member 63 does not rotate with the third output shaft 51. Thus, the fourth transmission member 62 can be used to drive the second drive shaft 42 to rotate, so that the second wheel 73 rotates independently. When the gear moves to the right, the gear meshes with the fifth transmission member 63. At this time, the second shifter 61 is in transmission connection with the fifth transmission member 63, and the fifth transmission member 63 can rotate with the third output shaft 51, while the fourth transmission member 62 does not rotate with the third output shaft 51. Thus, the fifth transmission member 63 can be used to drive the differential 4 to rotate, so that the first wheel 72 and the second wheel 73 rotate synchronously.

[0100] The drive system in the embodiment of the present application at least has the following working modes:

[0101] I. Pure electric independent drive mode:

[0102] In this mode, the first transmission mechanism 3 is in the first state, and the second transmission mechanism 6 is in the fourth state. The first output device 1 is used to drive the first wheel 72 to rotate independently, and the third output device 5 is used to drive the second wheel 73 to rotate independently. Among them, this mode is applicable when the remaining power of the power battery 71 is sufficient and / or the driver selects to turn on the assisted driving mode.

[0103] II. Series drive mode:

[0104] In this mode, the first transmission mechanism 3 is in the second state, and the second transmission mechanism 6 is in the fifth state. The second output device 2 is used to drive the first output device 1 to charge the power battery 71, and the third output device 5 is used to drive the first wheel 72 and the second wheel 73 to rotate synchronously. Among them, this mode is applicable when the remaining power of the power battery 71 is insufficient.

[0105] III. Engine drive mode:

[0106] In this mode, the first transmission mechanism 3 is in the third state, and the third output device 5 does not start. At this time, the second output device 2 is used to drive the differential 4 to rotate, so that the first wheel 72 and the second wheel 73 rotate synchronously. Among them, this mode is applicable when the remaining power of the power battery 71 is insufficient and / or the vehicle speed requirement is high.

[0107] IV. Parallel drive mode:

[0108] In this mode, the first transmission mechanism 3 is in the third state and the second transmission mechanism 6 is in the fifth state. At this time, the differential 4 is driven to rotate by using the second output device 2 and the third output device 5 simultaneously, so that the first wheel 72 and the second wheel 73 rotate synchronously. Among them, this mode is applicable when a higher vehicle speed or a large power demand is required.

[0109] The embodiment of the present application further provides a vehicle, which includes the drive system as described above. The vehicle has all the beneficial effects of the above drive system, and the present disclosure will not elaborate herein.

[0110] The vehicle may be a plug-in hybrid vehicle or an extended-range electric vehicle, etc., and the present disclosure does not make specific limitations thereto.

[0111] Among them, the above drive system serves as the front drive system of the vehicle. The vehicle may further include a rear drive system 8. Generally speaking, the rear drive system 8 includes two independently arranged motors, and both motors are electrically connected to the power battery 71.

[0112] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0113] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0114] Among the embodiments, embodiments, and related technical features of the present application, they can be combined and replaced with each other without conflict.

[0115] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A drive system, characterized in that: include: a first output device having a first output shaft, the first output device comprising an integrated power generation mechanism and a driving mechanism, the driving mechanism being configured to drive the first output shaft to rotate, and the power generation mechanism being configured to deliver electric energy to the power battery; A second output device, comprising a second output shaft, wherein the second output shaft is arranged opposite to the first output shaft; The first transmission mechanism is connected between the first output shaft and the second output shaft, and the first transmission mechanism is configured to transmit the torque of the first output shaft to the first wheel, or to transmit the torque of the second output shaft to the first output shaft.

2. The drive system according to claim 1, characterized in that: The first transmission mechanism has a first state and a second state. In the first state, the first transmission mechanism is used to transmission-connect the first output shaft and the first wheel to transmit the torque of the first output shaft to the first wheel. In the second state, the first transmission mechanism is used to transmission-connect the first output shaft and the second output shaft to transmit the torque of the second output shaft to the first output shaft.

3. The drive system according to claim 2, characterized in that: The first transmission mechanism comprises: a first shifter, coaxially connected to the first output shaft; A first transmission member, rotatably sleeved on the first output shaft; a second transmission member, drivingly connected to the first transmission member, the second transmission member being configured to drive the first wheel to rotate; Wherein, in the first state, the first shifter is drivingly connected to the first transmission member, and in the second state, the first shifter is drivingly connected to the second output shaft.

4. The drive system according to claim 2, characterized in that: The first transmission mechanism comprises: a clutch mounted on the second output shaft, the clutch dividing the second output shaft into a first section and a second section, the second section being connected to the second output device; a first shifter, one end of which is coaxially connected to the first output shaft and the other end of which is coaxially connected to the first section; A first transmission member, rotatably sleeved on the first section; a second transmission member, drivingly connected to the first transmission member, the second transmission member being configured to drive the first wheel to rotate; Among them, in the first state, the first shifter is transmission-connected to the first transmission member, and the clutch is disconnected to separate the first section from the second section. In the second state, the first shifter is transmission-connected to the second output shaft, and the clutch is turned on to make the first section and the second section coaxially driven.

5. The drive system according to claim 4, characterized in that: The first transmission member includes a first transmission tooth and a second transmission tooth that are coaxially connected. The first transmission tooth is in transmission connection with the second transmission member. The first transmission tooth and the second transmission tooth are both rotatably sleeved on the first output shaft, or the first transmission tooth and the second transmission tooth are both rotatably sleeved on the first section.

6. The drive system according to claim 3 or 4, characterized in that: The drive system further comprises: a differential, one end of which is connected to the first wheel via a first drive shaft, and the other end of which is connected to the second wheel via a second drive shaft; Wherein, the second transmission member is arranged on the first drive shaft, and the differential has a first mode and a second mode. In the first mode, the differential is used to make the first wheel and / or the second wheel rotate independently, and in the second mode, the differential is used to drive the first wheel and the second wheel to rotate.

7. The drive system according to claim 6, characterized in that: The first transmission mechanism is drivingly connected to the differential, and / or the first transmission mechanism is drivingly connected to the first drive shaft.

8. The drive system according to claim 6, characterized in that: The first transmission mechanism further comprises: A third transmission member is rotatably sleeved on the first output shaft, and the third transmission member is drivingly connected to the differential; The first transmission mechanism further has a third state, in which the first shifter of the first transmission mechanism is in transmission connection with the third transmission member.

9. The drive system according to claim 6, characterized in that: The drive system further comprises: a third output device having a third output shaft; The second transmission mechanism is drivingly connected to the third output shaft, and the second transmission mechanism is also drivingly connected to the differential and / or the second drive shaft.

10. The drive system according to claim 9, characterized in that: The second transmission mechanism has a fourth state and a fifth state. In the fourth state, the second transmission mechanism is drivingly connected to the second drive shaft to drive the second wheel to rotate. In the fifth state, the second transmission mechanism is drivingly connected to the differential to drive the first wheel and the second wheel to rotate synchronously.

11. The drive system according to claim 10, characterized in that: The second transmission mechanism comprises: a second shifter, coaxially connected to the third output shaft; Wherein, in the fourth state, the second shifter is drivingly connected to the second drive shaft, and in the fifth state, the second shifter is drivingly connected to the differential.

12. The drive system according to claim 11, characterized in that: The second transmission mechanism further comprises: A fourth transmission member is rotatably sleeved on the third output shaft, and the fourth transmission member is transmission-connected to the second drive shaft; A fifth transmission member, rotatably sleeved on the third output shaft, the fifth transmission member being drivingly connected to the differential; Among them, the fourth transmission member and the fifth transmission member are respectively located on opposite sides of the second shifter. In the fourth state, the second shifter is transmission-connected to the fourth transmission member. In the fifth state, the second shifter is transmission-connected to the fifth transmission member.

13. A vehicle, characterized in that: Comprising a drive system as claimed in any one of claims 1 to 12.

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