Driving system of vehicle and vehicle

Abstract

The utility model discloses a driving system of a vehicle and the vehicle, and relates to the field of vehicles. The first motor is in transmission connection with the first transmission shaft; the first transmission shaft is in transmission connection with one of the sun gear, the planet carrier and the gear ring, and the locking device is in transmission connection with the first transmission shaft and can be locked with one of the other two of the sun gear, the planet carrier and the gear ring; the multiple change gears are all in transmission connection with the first transmission shaft, and the second transmission shaft is selectively in transmission connection with any change gear through the combination device. Therefore, the locking device is in transmission connection with the first transmission shaft and can be locked with one of the other two of the sun gear, the planet carrier and the gear ring, and the second transmission shaft is selectively in transmission connection with any change gear through the combination device, so that the driving system is reasonable in design and has multiple driving modes; and engine direct drive can be achieved, and the driving experience can be improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, and in particular to a drive system of a vehicle and a vehicle. Background Art

[0002] In the related art, the drive system of a vehicle plays a crucial role in the operation and performance of the entire vehicle, and its performance directly affects the driving experience and power performance of the vehicle. However, the current drive system of the vehicle is not reasonably designed. The drive system with an E-CVT mode has a single drive mode and cannot achieve direct drive of the engine, thus failing to meet the driving needs of users. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a drive system, which is reasonably designed in structure, has multiple drive modes, and can achieve direct drive of the engine, thus being beneficial to improving the driving experience.

[0004] The utility model further provides a vehicle.

[0005] The drive system of the vehicle according to the utility model includes: an engine and a planetary gear train, the engine is in transmission connection with the planetary gear train; a first motor and a first transmission shaft, the first motor is in transmission connection with the first transmission shaft; a locking device, the planetary gear train includes: a sun gear, a planet carrier, and a ring gear, the first transmission shaft is in transmission connection with one of the sun gear, the planet carrier, and the ring gear, the locking device is in transmission connection with the first transmission shaft and can lock with one of the other two of the sun gear, the planet carrier, and the ring gear; a coupling device, a second transmission shaft, and a plurality of speed-changing gears, the plurality of speed-changing gears are all sleeved on the second transmission shaft and are all in transmission connection with the first transmission shaft, and the second transmission shaft is selectively in transmission connection with any one of the speed-changing gears through the coupling device.

[0006] According to the drive system of the vehicle of the utility model, by making the locking device be in transmission connection with the first transmission shaft and can lock with one of the other two of the sun gear, the planet carrier, and the ring gear, and making the second transmission shaft be selectively in transmission connection with any one of the speed-changing gears through the coupling device, the drive system can be reasonably designed, the drive system can have multiple drive modes, and can achieve direct drive of the engine, thus being beneficial to improving the driving experience.

[0007] In some examples of the utility model, the engine is in transmission connection with the planet carrier, the sun gear is in transmission connection with the first transmission shaft, and the locking device is in transmission connection with the first transmission shaft and can lock with the ring gear.

[0008] In some examples of the present utility model, the engine is in transmission connection with the ring gear, the sun gear is in transmission connection with the first transmission shaft, and the locking device is in transmission connection with the first transmission shaft and can lock with the planet carrier.

[0009] In some examples of the present utility model, the engine is in transmission connection with the sun gear, the ring gear is in transmission connection with the first transmission shaft, and the locking device is in transmission connection with the first transmission shaft and can lock with the planet carrier.

[0010] In some examples of the present utility model, the engine and the first transmission shaft are both in transmission connection with the sun gear or the ring gear, and the locking device is in transmission connection with the first transmission shaft and can lock with the planet carrier.

[0011] In some examples of the present utility model, the engine and the first transmission shaft are both in transmission connection with the planet carrier, and the locking device is in transmission connection with the first transmission shaft and can lock with the ring gear.

[0012] In some examples of the present utility model, the locking device includes a first locking member and a second locking member. The first locking member is in transmission connection with the first transmission shaft, the second locking member is fixedly connected to one of the other two of the sun gear, the planet carrier, and the ring gear, and the first locking member can be locked and combined with the second locking member.

[0013] In some examples of the present utility model, along the extension direction of the first transmission shaft, the first locking member is located between the planetary gear train and the first motor, or the first locking member is located between the planetary gear train and the engine.

[0014] In some examples of the present utility model, the engine, the planetary gear train, and the first transmission shaft are coaxially arranged.

[0015] The vehicle according to the present utility model includes: a drive system and a motor group. The drive system includes the drive system of the above-mentioned vehicle, and the motor group includes at least one second motor; one of the drive system and the motor group is used to drive the front wheel system of the vehicle, and the other of the drive system and the motor group is used to drive the rear wheel system of the vehicle.

[0016] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0018] Figure 1 is a schematic diagram of the architecture of the drive system according to an embodiment of the present invention (the locking device is provided between the planetary gear train and the first motor, and the engine is drivingly connected to the planet carrier);

[0019] Figure 2 is another schematic diagram of the architecture of the drive system according to an embodiment of the present invention (the locking device is provided between the planetary gear train and the first motor, and the engine is drivingly connected to the ring gear);

[0020] Figure 3 is another schematic diagram of the architecture of the drive system according to an embodiment of the present invention (the locking device is provided between the planetary gear train and the first motor, and the engine is drivingly connected to the sun gear);

[0021] Figure 4 is another schematic diagram of the architecture of the drive system according to an embodiment of the present invention (the locking device is provided between the planetary gear train and the engine, and the engine is drivingly connected to the planet carrier);

[0022] Figure 5 is another schematic diagram of the architecture of the drive system according to an embodiment of the present invention (the locking device is provided between the planetary gear train and the engine, and the engine is drivingly connected to the sun gear);

[0023] Figure 6 is another schematic diagram of the architecture of the drive system according to an embodiment of the present invention (the locking device is provided between the planetary gear train and the engine, and the engine is drivingly connected to the ring gear);

[0024] Figure 7 is a schematic diagram of the second motor, the reducer, and the second differential according to an embodiment of the present invention;

[0025] Figure 8 is a schematic diagram of the multi-stage planetary gear train according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] Drive system 100; First transmission shaft 99; Second transmission shaft 98;

[0028] First motor 10; Engine 20;

[0029] Planetary gear train 30; Sun gear 31; Planet carrier 32; Ring gear 33; Planetary gear 34; First-stage planetary gear 341; Second-stage planetary gear 342; Multi-stage planetary gear train 35;

[0030] Locking device 40; First locking member 41; Second locking member 42;

[0031] Combining device 50; First combining member 51; Second combining member 52; Third combining member 53;

[0032] Variable speed gear 60; First variable speed gear 61; Second variable speed gear 62; Third variable speed gear 63;

[0033] First gear 64; Second gear 65; Third gear 66;

[0034] Reducer 70; Second motor 80; First differential 91; Second differential 92. Detailed implementation mode

[0035] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0036] Refer to below Figures 1-8 Describe the drive system 100 of a vehicle according to an embodiment of the present utility model.

[0037] As Figures 1-8 As shown, the drive system 100 according to an embodiment of the present utility model includes: an engine 20, a planetary gear train 30, a first motor 10, a first transmission shaft 99, a locking device 40, a combining device 50, a second transmission shaft 98, and a variable speed gear 60.

[0038] The engine 20 is in transmission connection with the planetary gear train 30; the first motor 10 is in transmission connection with the first transmission shaft 99; the planetary gear train 30 includes: a sun gear 31, a planet carrier 32, and a ring gear 33. The first transmission shaft 99 is in transmission connection with one of the sun gear 31, the planet carrier 32, and the ring gear 33. The locking device 40 is in transmission connection with the first transmission shaft 99 and can be locked with one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33. A plurality of variable speed gears 60 are all sleeved on the second transmission shaft 98 and are all in transmission connection with the first transmission shaft 99. The second transmission shaft 98 is selectively in transmission connection with any one of the variable speed gears 60 through the combining device 50.

[0039] Among them, the way of the engine 20 being in transmission connection with the planetary gear train 30 can be but is not limited to gear pair connection, spline connection, coupling connection, etc. As some embodiments of the present application, the engine 20 is in transmission connection with the planetary gear train 30 by spline connection.

[0040] The first motor 10 is drivingly connected to the first transmission shaft 99. The manner of driving connection between the first motor 10 and the first transmission shaft 99 may be, but is not limited to, gear pair connection, spline connection, coupling connection, etc. As some embodiments of the present application, the first motor 10 and the first transmission shaft 99 are drivingly connected by means of a gear pair connection.

[0041] The first transmission shaft 99 is drivingly connected to one of the sun gear 31, the planet carrier 32, and the ring gear 33. That is to say, the first transmission shaft 99 is drivingly connected to the sun gear 31, or the first transmission shaft 99 is drivingly connected to the planet carrier 32, or the first transmission shaft 99 is drivingly connected to the ring gear 33. As some embodiments of the present application, the first transmission shaft 99 and the sun gear 31 are drivingly connected by means of a spline connection. As some embodiments of the present application, the first transmission shaft 99 and the planet carrier 32 are drivingly connected by means of a coupling connection. As some embodiments of the present application, the first transmission shaft 99 and the ring gear 33 are drivingly connected by means of a gear pair connection.

[0042] As some embodiments of the present application, the planetary gear train 30 further includes: planetary gears 34. The planetary carrier 32 may be provided with the planetary gears 34. The planetary gears 34 may be configured as multiple. The multiple planetary gears 34 can be arranged on the outer periphery of the sun gear 31 and mesh with it. The planetary gears 34 can move on the outer periphery of the sun gear 31 to achieve power transmission. The ring gear 33 is arranged on the outer periphery of the multiple planetary gears 34, and the ring gear 33 can mesh with the multiple planetary gears 34 to achieve power transmission. The planetary gears 34 can be meshed between the sun gear 31 and the ring gear 33.

[0043] In addition, in order to increase the speed ratio, the planetary gear train 30 can be set as a multi-stage planetary gear train 35, such as Figure 8 shown, including a sun gear 31, a first-stage planetary gear 341, a second-stage planetary gear 342, a planetary carrier 32, and a ring gear 33. The planetary carrier 32 is provided with the first-stage planetary gear 341 and the second-stage planetary gear 342. The first-stage planetary gear 341 can move on the outer periphery of the sun gear 31. The second-stage planetary gear 342 meshes with the first-stage planetary gear 341 and the ring gear 33 at the same time to achieve power transmission.

[0044] The locking device 40 is in driving connection with the first transmission shaft 99. Moreover, when the first transmission shaft 99 is in driving connection with one of the sun gear 31, the planet carrier 32, and the ring gear 33, the locking device 40 can lock with one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33, so that the transmission ratio of the planetary gear train 30 is 1. As some embodiments of the present application, the first transmission shaft 99 is in driving connection with the sun gear 31, and the locking device 40 can lock with the ring gear 33. As some embodiments of the present application, the first transmission shaft 99 is in driving connection with the sun gear 31, and the locking device 40 can lock with the planet carrier 32. As some embodiments of the present application, the first transmission shaft 99 is in driving connection with the ring gear 33, and the locking device 40 can lock with the planet carrier 32.

[0045] It can be understood that when the first transmission shaft 99 is in driving connection with one of the sun gear 31, the planet carrier 32, and the ring gear 33, the locking device 40 may not lock with one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33.

[0046] The number of the transmission gears 60 is multiple. The number of the transmission gears 60 can be, but is not limited to, two, three, four, etc. As some embodiments of the present application, the number of the transmission gears 60 is two, and both of the two transmission gears 60 are sleeved on the second transmission shaft 98.

[0047] Multiple transmission gears 60 are all in driving connection with the first transmission shaft 99. As some embodiments of the present application, multiple transmission gears 60 are all in driving connection with the first transmission shaft 99 through gear pairs. The second transmission shaft 98 is selectively in driving connection with any one of the transmission gears 60 through the engaging device 50. As some embodiments of the present application, as Figures 1-6 shown, the drive system 100 includes a first transmission gear 61 and a second transmission gear 62. The engaging device 50 includes a first engaging member 51, a second engaging member 52, and a third engaging member 53. The first engaging member 51 is in driving connection with the second transmission shaft 98. The second engaging member 52 is arranged on the first transmission gear 61. The third engaging member 53 is arranged on the second transmission gear 62. The first transmission gear 61 and the second transmission gear 62 are both sleeved on the second transmission shaft 98. The combination of the first engaging member 51 and the second engaging member 52 can make the second transmission shaft 98 in driving connection with the first transmission gear 61. Or, the combination of the first engaging member 51 and the third engaging member 53 can make the second transmission shaft 98 in driving connection with the second transmission gear 62. Or, the engaging device 50 is neither in driving connection with the first transmission gear 61 nor in driving connection with the second transmission gear 62.

[0048] In some embodiments of the present application, the drive system 100 further includes a first gear 64 and a second gear 65. Both the first gear 64 and the second gear 65 are in transmission connection with the first transmission shaft 99 (directly in transmission connection with the first transmission shaft 99 or indirectly in transmission connection with the first transmission shaft 99 through the planetary gear train 30). When the first transmission shaft 99 rotates, it can drive the first gear 64 and the second gear 65 to rotate. Moreover, the first gear 64 is in transmission connection with the first speed-changing gear 61, and the second gear 65 is in transmission connection with the second speed-changing gear 62. The power of the engine 20 can be transmitted to the second transmission shaft 98 along the first gear 64 and the first speed-changing gear 61, or the power of the engine 20 can be transmitted to the second transmission shaft 98 through the second gear 65 and the second speed-changing gear 62.

[0049] In some embodiments of the present application, the drive system 100 further includes a third gear 66. The third gear 66 is in transmission connection with the first motor 10, and the third gear 66 is in transmission connection with the first gear 64, so that the power of the first motor 10 can be transmitted to the first output shaft 99.

[0050] In some embodiments of the present application, the second transmission shaft 98 is in transmission connection with the first speed-changing gear 61 through the engaging device 50. The power of the engine 20 can be transmitted to the second transmission shaft 98 along the first transmission shaft 99 through the first gear 64 and the first speed-changing gear 61. In some embodiments of the present application, the second transmission shaft 98 is in transmission connection with the second speed-changing gear 62 through the engaging device 50. The power of the engine 20 can be transmitted to the second transmission shaft 98 through the second gear 65 and the second speed-changing gear 62.

[0051] In some embodiments of the present application, the drive system 100 further includes a third speed-changing gear 63 and a first differential 91. The third speed-changing gear 63 is in transmission connection with the second transmission shaft 98, and the third speed-changing gear 63 is in transmission connection with the first differential 91. The power of the engine 20 and the power of the first motor 10 can both be transmitted to the wheel system of the vehicle along the first transmission shaft 99, the second transmission shaft 98, the third speed-changing gear 63, and the first differential 91. The wheel system may include a front-wheel system and a rear-wheel system. Specifically, the power of the engine 20 and the power of the first motor 10 can both be transmitted to the front-wheel system or the rear-wheel system of the vehicle along the first transmission shaft 99, the second transmission shaft 98, the third speed-changing gear 63, and the first differential 91.

[0052] The drive system 100 proposed in the present application can have multiple working modes, and the multiple working modes include but are not limited to the engine 20 direct drive first gear mode, the engine 20 direct drive second gear mode, the E-CVT mode, the EV mode, the range extender mode, etc. The specific working states of the drive system 100 in multiple working modes are described in detail below.

[0053] The engine 20 is in the direct drive first gear mode. In the direct drive first gear mode of the engine 20, the locking device 40 can lock the locked planetary gear train 30 so that the transmission ratio of the planetary gear train 30 is 1. Moreover, the engaging device 50 can be in transmission connection with the first transmission gear 61. The power of the engine 20 is sequentially transmitted to the wheel train of the vehicle through the planetary gear train 30, the first transmission shaft 99, the second transmission shaft 98, the third transmission gear 63, and the first differential 91.

[0054] The engine 20 is in the direct drive second gear mode. In the direct drive second gear mode of the engine 20, the locking device 40 can lock the planetary gear train 30 so that the transmission ratio of the planetary gear train 30 is 1. Moreover, the engaging device 50 can be in transmission connection with the second transmission gear 62. The power of the engine 20 is sequentially transmitted to the wheel train of the vehicle through the planetary gear train 30, the first transmission shaft 99, the second transmission shaft 98, the third transmission gear 63, and the first differential 91.

[0055] In the E-CVT mode, in the E-CVT mode, the locking device 40 does not lock the planetary gear train 30. Moreover, the engaging device 50 can be in transmission connection with the second transmission gear 62. The power of the engine 20 can be split by the planetary gear train 30. Part of the power drives the first motor 10 to generate electricity, and the other part of the power is transmitted to the second transmission shaft 98 to be output to the wheel train of the vehicle.

[0056] In the EV mode, in the EV mode, the locking device 40 does not lock the planetary gear train 30. Moreover, the engaging device 50 is in transmission connection with the first transmission gear 61. The engine 20 stops working. The power of the first motor 10 is transmitted to the first transmission gear 61 through the first gear 64 to be transmitted to the second transmission shaft 98 to be output to the wheel train of the vehicle.

[0057] In the range extender mode, in the range extender mode, the locking device 40 can lock the planetary gear train 30 so that the transmission ratio of the planetary gear train 30 is 1. The engaging device 50 is neither in transmission connection with the first transmission gear 61 nor in transmission connection with the second transmission gear 62. The power of the engine 20 is transmitted to the first gear 64 through the planetary gear train 30 to be transmitted to the first motor 10 to make the first motor 10 generate electricity.

[0058] It should be noted that the descriptions of the above various working modes are only exemplary descriptions, and do not mean that the drive system 100 proposed by this application is limited to the above working modes, nor does it mean that the drive system 100 proposed by this application is limited by the above working modes.

[0059] Thus, by drivingly connecting the locking device 40 to the first transmission shaft 99 and enabling it to lock with one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33, and by enabling the second transmission shaft 98 to be selectively drivingly connected to any one of the transmission gears 60 through the coupling device 50, the drive system 100 can be reasonably designed, the drive system 100 can have multiple drive modes, and direct drive of the engine 20 can be achieved, which is beneficial to improving the driving experience.

[0060] In some embodiments of the present utility model, as Figure 1 shown, the engine 20 is drivingly connected to the planet carrier 32, the sun gear 31 is drivingly connected to the first transmission shaft 99, and the locking device 40 is drivingly connected to the first transmission shaft 99 and can lock with the ring gear 33.

[0061] As some embodiments of the present application, the manner in which the engine 20 is drivingly connected to the planet carrier 32 may be, but is not limited to, gear pair connection, spline connection, coupling connection, etc. As some embodiments of the present application, the engine 20 is drivingly connected to the planet carrier 32 by means of spline connection.

[0062] As some embodiments of the present application, the manner in which the sun gear 31 is drivingly connected to the first transmission shaft 99 may be, but is not limited to, gear pair connection, spline connection, coupling connection, etc. As some embodiments of the present application, the sun gear 31 is drivingly connected to the first transmission shaft 99 by means of spline connection.

[0063] The locking device 40 is drivingly connected to the first transmission shaft 99, and moreover, the locking device 40 can lock with the ring gear 33. The locking of the locking device 40 with the ring gear 33 can lock the sun gear 31 with the ring gear 33, so that the transmission ratio of the planetary gear train 30 is 1.

[0064] As some embodiments of the present application, as Figure 1 shown, the output shaft of the engine 20, the planetary gear train 30, and the first transmission shaft 99 are coaxially arranged. The sun gear 31 is drivingly connected to and coaxial with the first transmission shaft 99. The output shaft of the engine 20 is drivingly connected to the planet carrier 32. The planet gears 34 on the planet carrier 32 are all arranged around the sun gear 31. The ring gear 33 is arranged on the outer periphery of the planet gears 34, and moreover, the ring gear 33 is drivingly connected (such as fixedly connected) to the second gear 65. Both the ring gear 33 and the second gear 65 are sleeved on the first transmission shaft 99.

[0065] By drivingly connecting the engine 20 to the planet carrier 32, and drivingly connecting the locking device 40 to the first transmission shaft 99 and enabling it to lock with the ring gear 33, the transmission ratio of the planetary gear train 30 can be made 1, which can achieve direct drive transmission of the power of the engine 20 to the wheel train of the vehicle. Moreover, adopting the above arrangement can make the drive system 100 compact in structure and reliable in operation, which is beneficial to improving the service reliability of the drive system 100, reducing the layout difficulty, and improving the space utilization rate.

[0066] In some embodiments of the present utility model, as Figure 2 shown, the engine 20 is drivingly connected to the ring gear 33, the sun gear 31 is drivingly connected to the first transmission shaft 99, and the locking device 40 is drivingly connected to the first transmission shaft 99 and can lock with the planet carrier 32.

[0067] As some embodiments of the present application, the way of drivingly connecting the engine 20 to the ring gear 33 can be but is not limited to gear pair connection, spline connection, coupling connection, etc. As some embodiments of the present application, the engine 20 is drivingly connected to the ring gear 33 by means of spline connection.

[0068] As some embodiments of the present application, the way of drivingly connecting the sun gear 31 to the first transmission shaft 99 can be but is not limited to gear pair connection, spline connection, coupling connection, etc. As some embodiments of the present application, the sun gear 31 is drivingly connected to the first transmission shaft 99 by means of spline connection.

[0069] The locking device 40 is drivingly connected to the first transmission shaft 99, and moreover, the locking device 40 can lock with the planet carrier 32. The locking of the locking device 40 with the planet carrier 32 can make the transmission ratio of the planetary gear train 30 be 1.

[0070] As some embodiments of the present application, the output shaft of the engine 20, the planetary gear train 30 and the first transmission shaft 99 are coaxially arranged. The sun gear 31 is drivingly connected to the first transmission shaft 99 and is coaxial. The output shaft of the engine 20 is drivingly connected to the ring gear 33. The planet gear 34 is arranged between the sun gear 31 and the ring gear 33. The planet carrier 32 is drivingly connected (such as fixedly connected) to the second gear 65. Both the planet carrier 32 and the second gear 65 are sleeved on the first transmission shaft 99.

[0071] By drivingly connecting the engine 20 to the ring gear 33, and drivingly connecting the locking device 40 to the first transmission shaft 99 and enabling it to lock with the planet carrier 32, the transmission ratio of the planetary gear train 30 can be made 1, which can achieve direct drive transmission of the power of the engine 20 to the wheel train of the vehicle. Moreover, adopting the above arrangement can make the drive system 100 compact in structure and reliable in operation, which is beneficial to improving the service reliability of the drive system 100, reducing the layout difficulty, and improving the space utilization rate.

[0072] In some embodiments of the present utility model, as Figure 3 shown, the engine 20 is drivingly connected to the sun gear 31, the ring gear 33 is drivingly connected to the first transmission shaft 99, and the locking device 40 is drivingly connected to the first transmission shaft 99 and can lock with the planet carrier 32.

[0073] As some embodiments of the present application, the manner in which the engine 20 is drivingly connected to the sun gear 31 may be, but is not limited to, gear pair connection, spline connection, coupling connection, etc. As some embodiments of the present application, the engine 20 is drivingly connected to the sun gear 31 by means of spline connection.

[0074] As some embodiments of the present application, the manner in which the ring gear 33 is drivingly connected to the first transmission shaft 99 may be, but is not limited to, gear pair connection, spline connection, coupling connection, etc. As some embodiments of the present application, the ring gear 33 is drivingly connected to the first transmission shaft 99 by means of spline connection.

[0075] The locking device 40 is drivingly connected to the first transmission shaft 99, and moreover, the locking device 40 can lock with the planet carrier 32. The locking of the locking device 40 with the planet carrier 32 can make the transmission ratio of the planetary gear train 30 equal to 1.

[0076] As some embodiments of the present application, the output shaft of the engine 20, the planetary gear train 30 and the first transmission shaft 99 are coaxially arranged. The ring gear 33 is drivingly connected to and coaxial with the first transmission shaft 99. The output shaft of the engine 20 is drivingly connected to the sun gear 31. The planet gear 34 is disposed between the sun gear 31 and the ring gear 33. The planet carrier 32 is drivingly connected (such as fixedly connected) to the second gear 65. Both the planet carrier 32 and the second gear 65 are sleeved on the first transmission shaft 99.

[0077] By drivingly connecting the engine 20 to the sun gear 31, and making the locking device 40 drivingly connected to the first transmission shaft 99 and capable of locking with the planet carrier 32, the transmission ratio of the planetary gear train 30 can be made equal to 1, and the power of the engine 20 can be directly driven and transmitted to the wheel train of the vehicle. Moreover, by adopting the above arrangement, the drive system 100 can have a compact structure and reliable operation, which is beneficial to improving the reliability of use of the drive system 100, and is beneficial to reducing the layout difficulty and improving the space utilization rate.

[0078] In some embodiments of the present utility model, as Figure 5 and Figure 6 shown, the engine 20 and the first transmission shaft 99 are both drivingly connected to the sun gear 31 or the ring gear 33, and the locking device 40 is drivingly connected to the first transmission shaft 99 and can lock with the planet carrier 32.

[0079] As some embodiments of the present application, as Figure 5As shown, the engine 20 and the first transmission shaft 99 are both drivingly connected to the sun gear 31. The output shaft of the engine 20 and the first transmission shaft 99 are both coaxially arranged with the sun gear 31. The planet carrier 32 is drivingly connected to the second gear 65 (e.g., fixedly connected). The ring gear 33 is drivingly connected to the first gear 64 (e.g., fixedly connected). The planet gears 34 are arranged between the sun gear 31 and the ring gear 33. The planet carrier 32, the second gear 65, the ring gear 33, and the first gear 64 are all sleeved on the first transmission shaft 99. The locking device 40 is drivingly connected to the first transmission shaft 99 and can lock with the planet carrier 32 so that the transmission ratio of the planetary gear train 30 is 1.

[0080] As some embodiments of the present application, as Figure 6 shown, the engine 20 and the first transmission shaft 99 are both drivingly connected to the ring gear 33. The output shaft of the engine 20 and the first transmission shaft 99 are both coaxially arranged with the ring gear 33. The planet carrier 32 is drivingly connected to the second gear 65 (e.g., fixedly connected). The sun gear 31 is drivingly connected to the first gear 64 (e.g., fixedly connected). The planet gears 34 are arranged between the sun gear 31 and the ring gear 33. The planet carrier 32, the second gear 65, the sun gear 31, and the first gear 64 are all sleeved on the first transmission shaft 99.

[0081] Such an arrangement can make the transmission ratio of the planetary gear train 30 be 1, and can realize directly driving and transmitting the power of the engine 20 to the wheel train of the vehicle. Moreover, adopting the above arrangement method can make the drive system 100 have a compact structure and reliable operation, which is beneficial to improving the use reliability of the drive system 100, and is beneficial to reducing the layout difficulty and improving the space utilization rate.

[0082] In some embodiments of the present invention, as Figure 4 shown, the engine 20 and the first transmission shaft 99 are both drivingly connected to the planet carrier 32. The locking device 40 is drivingly connected to the first transmission shaft 99 and can lock with the ring gear 33.

[0083] As some embodiments of the present application, the engine 20 and the first transmission shaft 99 are both drivingly connected to the planet carrier 32. The output shaft of the engine 20 and the first transmission shaft 99 are both coaxially arranged with the planet carrier 32. The ring gear 33 is drivingly connected to the second gear 65 (e.g., fixedly connected). The sun gear 31 is drivingly connected to the first gear 64 (e.g., fixedly connected). The planet gears 34 are arranged between the sun gear 31 and the ring gear 33. The sun gear 31, the second gear 65, the ring gear 33, and the first gear 64 are all sleeved on the first transmission shaft 99. The locking device 40 is drivingly connected to the first transmission shaft 99 and can lock with the ring gear 33 so that the transmission ratio of the planetary gear train 30 is 1.

[0084] Such a setting can make the transmission ratio of the planetary gear train 30 be 1, enabling the power of the engine 20 to be directly driven and transmitted to the vehicle's gear train. Moreover, adopting the above layout can make the drive system 100 compact and reliable in operation, which is beneficial to improving the reliability of use of the drive system 100, reducing the layout difficulty, and increasing the space utilization rate.

[0085] In some embodiments of the present utility model, as Figures 1-6 shown, the locking device 40 includes a first locking member 41 and a second locking member 42. The first locking member 41 is in transmission connection with the first transmission shaft 99, and the second locking member 42 is fixedly connected to one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33. The first locking member 41 can be locked and combined with the second locking member 42.

[0086] Among them, the first locking member 41 is in transmission connection with the first transmission shaft 99, the first transmission shaft 99 is in transmission connection with one of the sun gear 31, the planet carrier 32, and the ring gear 33, the second locking member 42 is fixedly connected to one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33, and the first locking member 41 can be locked and combined with the second locking member 42 to make the transmission ratio of the planetary gear train be 1.

[0087] As some embodiments of the present application, as Figure 1 shown, the first locking member 41 is in transmission connection with the first transmission shaft 99 in a spline connection manner, the first transmission shaft 99 is in transmission connection with the sun gear 31, the second locking member 42 is fixedly connected to the second gear 65, and the second gear 65 is fixedly connected to the ring gear 33, so that the second locking member 42 is fixedly connected to the ring gear 33. The first locking member 41 can be locked and combined with the second locking member 42 to lock the planetary gear train 30 and make the transmission ratio of the planetary gear train 30 be 1.

[0088] As some embodiments of the present application, as Figure 2 shown, the first locking member 41 is in transmission connection with the first transmission shaft 99 in a spline connection manner, the first transmission shaft 99 is in transmission connection with the sun gear 31, the second locking member 42 is fixedly connected to the second gear 65, and the second gear 65 is fixedly connected to the planet carrier 32, so that the second locking member 42 is fixedly connected to the planet carrier 32. The first locking member 41 can be locked and combined with the second locking member 42 to lock the planetary gear train 30 and make the transmission ratio of the planetary gear train 30 be 1.

[0089] By drivingly connecting the first locking member 41 to the first transmission shaft 99 and fixedly connecting the second locking member 42 to one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33, the installation position and structural form of the locking device 40 can be made reasonable, and the locking device 40 can lock the planetary gear train 30 so that the power of the engine 20 can be transmitted to the first transmission shaft 99 at a ratio of 1:1, enabling direct drive of the engine 20.

[0090] In some embodiments of the present utility model, as Figures 1-6 shown, along the extension direction of the first transmission shaft 99, the first locking member 41 is located between the planetary gear train 30 and the first motor 10, or the first locking member 41 is located between the planetary gear train 30 and the engine 20.

[0091] As some embodiments of the present application, as Figures 1-3 shown, the first locking member 41 is disposed between the planetary gear train 30 and the first motor 10. That is to say, the planetary gear train 30 is disposed between the first locking member 41 and the engine 20, and the first locking member 41 can be locked and engaged with the second locking member 42 fixed to one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33, so that the engine 20 directly transmits power to the first transmission shaft 99.

[0092] As some embodiments of the present application, as Figures 4-6 shown, the first locking member 41 is disposed between the planetary gear train 30 and the engine 20. That is to say, the planetary gear train 30 is disposed between the first locking member 41 and the first motor 10, and the first locking member 41 can be locked and engaged with the second locking member 42 fixed to one of the other two of the sun gear 31, the planet carrier 32, and the ring gear 33, so that the engine 20 directly transmits power to the first transmission shaft 99.

[0093] Such an arrangement can make the structure of the drive system 100 reasonable, enable the drive system 100 to have multiple architectures, the first locking member 41 can be arranged according to the actual space position, and moreover, it is convenient to arrange the hub system, hydraulic system, etc. for driving the first locking member 41, so that the drive system 100 can be adapted to different vehicle models, which is beneficial to improving the versatility of the drive system 100.

[0094] In some embodiments of the present utility model, as Figures 1-6 shown, the engine 20, the planetary gear train 30, and the first transmission shaft 99 are coaxially arranged. That is to say, the axes of the engine 20, the planetary gear train 30, and the first transmission shaft 99 are collinear. By coaxially arranging the engine 20, the planetary gear train 30, and the first transmission shaft 99, the structure of the drive system 100 can be made compact, the space in the X direction (length direction) of the vehicle can be saved, and thus it is convenient to arrange other components of the vehicle, which is beneficial to reducing the overall assembly difficulty of the vehicle.

[0095] According to an embodiment of the utility model, the vehicle comprises: a drive system 100 and a motor group, wherein the drive system 100 comprises the drive system 100 of the vehicle of the above-mentioned embodiment, and the motor group comprises at least one second motor 80; one of the drive system 100 and the motor group is used to drive the front wheel train of the vehicle, and the other of the drive system 100 and the motor group is used to drive the rear wheel train of the vehicle.

[0096] As some embodiments of the present application, the drive system 100 is used to drive the front wheel train of the vehicle, and the motor group is used to drive the rear wheel train of the vehicle.

[0097] As some embodiments of the present application, the drive system 100 is used to drive the rear wheel train of the vehicle, and the motor group is used to drive the front wheel train of the vehicle.

[0098] As some embodiments of the present application, the motor group may include a second motor 80, the vehicle may include a second differential 92 and a reducer 70, and the power of the second motor 80 may pass through the reducer 70 and the second differential 92 to drive the front wheel train or the rear wheel train.

[0099] As some embodiments of the present application, the motor group may include one or two second motors 80, both of which may be constructed as wheel-side motors, and the two second motors 80 may be used to drive the two wheel ends of the front wheel train or the rear wheel train respectively.

[0100] As some embodiments of the present application, when the battery power of the entire vehicle is low, the drive system 100 can adopt the E-cvt mode, and the motor group outputs power to realize the four-wheel drive function of the vehicle and meet the driving needs of muddy roads, climbing slopes, and power-feeding four-wheel drive escape.

[0101] Therefore, according to the vehicle of the embodiment of the utility model, by making the locking device 40 transmission connected with the first transmission shaft 99 and being able to lock with one of the other two of the sun gear 31, the planetary carrier 32, and the ring gear 33, and making the second transmission shaft 98 selectively transmission connected with any one of the speed gears 60 through the coupling device 50, the drive system 100 can be reasonably designed, the drive system 100 can have multiple drive modes, and the engine 20 can be directly driven, which is beneficial to improving the driving experience.

[0102] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0103] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0104] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0105] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0106] In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0107] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0108] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A vehicle drive system (100), characterized in that: include: An engine (20) and a planetary gear train (30), wherein the engine (20) is drivingly connected to the planetary gear train (30); A first motor (10) and a first transmission shaft (99), wherein the first motor (10) is transmission-connected to the first transmission shaft (99); A locking device (40), the planetary gear train (30) comprising: a sun gear (31), a planet carrier (32), and a ring gear (33), the first transmission shaft (99) being transmission-connected to one of the sun gear (31), the planet carrier (32), and the ring gear (33), the locking device (40) being transmission-connected to the first transmission shaft (99) and being capable of locking with one of the other two of the sun gear (31), the planet carrier (32), and the ring gear (33); A coupling device (50), a second transmission shaft (98), and a plurality of speed gears (60), wherein the plurality of speed gears (60) are loosely sleeved on the second transmission shaft (98) and are all transmission-connected to the first transmission shaft (99); and the second transmission shaft (98) is selectively transmission-connected to any one of the speed gears (60) through the coupling device (50).

2. The vehicle drive system (100) according to claim 1, characterized in that: The engine (20) is transmission-connected to the planetary carrier (32), the sun gear (31) is transmission-connected to the first transmission shaft (99), and the locking device (40) is transmission-connected to the first transmission shaft (99) and can be locked with the ring gear (33).

3. The vehicle drive system (100) according to claim 1, characterized in that: The engine (20) is transmission-connected to the ring gear (33), the sun gear (31) is transmission-connected to the first transmission shaft (99), and the locking device (40) is transmission-connected to the first transmission shaft (99) and can be locked with the planet carrier (32).

4. The vehicle drive system (100) according to claim 1, characterized in that: The engine (20) is drivingly connected to the sun gear (31), the ring gear (33) is drivingly connected to the first transmission shaft (99), and the locking device (40) is drivingly connected to the first transmission shaft (99) and can be locked with the planet carrier (32).

5. The vehicle drive system (100) according to claim 1, characterized in that: The engine (20) and the first transmission shaft (99) are both transmission-connected to the sun gear (31) or the ring gear (33); the locking device (40) is transmission-connected to the first transmission shaft (99) and can be locked with the planet carrier (32).

6. The vehicle drive system (100) according to claim 1, characterized in that: The engine (20) and the first transmission shaft (99) are both transmission-connected to the planet carrier (32), and the locking device (40) is transmission-connected to the first transmission shaft (99) and can be locked with the ring gear (33).

7. The vehicle driving system (100) according to any one of claims 1 to 6, characterized in that: The locking device (40) comprises a first locking member (41) and a second locking member (42), wherein the first locking member (41) is transmission-connected to the first transmission shaft (99), and the second locking member (42) is fixedly connected to one of the other two of the sun gear (31), the planetary carrier (32), and the ring gear (33), and the first locking member (41) can be locked and combined with the second locking member (42).

8. The vehicle driving system (100) according to claim 7, characterized in that: Along the extension direction of the first transmission shaft (99), the first locking member (41) is located between the planetary gear train (30) and the first motor (10), or the first locking member (41) is located between the planetary gear train (30) and the engine (20).

9. The vehicle driving system (100) according to any one of claims 1 to 6, characterized in that: The engine (20), the planetary gear train (30), and the first transmission shaft (99) are coaxially arranged.

10. A vehicle, characterized in that: include: A drive system (100) and a motor group, wherein the drive system (100) comprises a drive system (100) of a vehicle according to any one of claims 1 to 9, and the motor group comprises at least one second motor (80); One of the drive system (100) and the motor group is used to drive the front wheel train of the vehicle, and the other of the drive system (100) and the motor group is used to drive the rear wheel train of the vehicle.

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