Transmission system and vehicle

Abstract

The embodiment of the utility model provides a transmission system and a vehicle. The transmission system comprises a first motor, a second motor, a first disconnecting mechanism, a first transmission mechanism, a second transmission mechanism and an output end. The first transmission mechanism is in transmission connection with the first motor; the second transmission mechanism is in transmission connection with the second motor; the first disconnecting mechanism is arranged between the first transmission mechanism and the second transmission mechanism, is in transmission connection with the first transmission mechanism and the second transmission mechanism, and is used for realizing transmission connection and separation of the first transmission mechanism and the second transmission mechanism; the first transmission mechanism and the second transmission mechanism are in transmission connection with the output end. The first motor and the second motor can achieve independent driving modes respectively, the driving force of the first motor can be transmitted to the second transmission mechanism through the first transmission mechanism, and the driving force of the second motor can be transmitted to the first transmission mechanism through the second transmission mechanism. And different driving modes such as double-motor superposition driving or double-motor parallel driving are realized.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of transmission systems, and particularly relate to a transmission system and a vehicle. BACKGROUND

[0002] Electric vehicles have the advantages of low carbon and environmental protection, and developing new energy vehicles is an important means to solve the current energy crisis and urban air pollution.

[0003] Under special working conditions such as climbing and heavy load, the requirement of electric vehicles for driving force is greatly improved. However, the driving mode of the electric vehicle in the related art is single, and the working mode of the driving system cannot be adjusted according to the requirements of these special working conditions, so as to meet the different driving force requirements of the vehicle under the special working conditions such as climbing and heavy load, thereby causing the vehicle to be insufficient in power under these working conditions, and even unable to normally drive. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide a transmission system and a vehicle, aiming at improving the problem that the driving mode of the electric vehicle in the related art is single and cannot adapt to the power performance requirements under different working conditions.

[0005] In order to solve the above technical problems, the present application is implemented as follows:

[0006] The present application provides a transmission system, comprising: a first motor, a second motor, a first disconnecting mechanism, a first transmission mechanism, a second transmission mechanism and an output end; the first transmission mechanism is in transmission connection with the first motor, and the second transmission mechanism is in transmission connection with the second motor; the first disconnecting mechanism is arranged between the first transmission mechanism and the second transmission mechanism, and is in transmission connection with the first transmission mechanism and the second transmission mechanism respectively, and is used for realizing the transmission connection and separation of the first transmission mechanism and the second transmission mechanism; the first transmission mechanism and the second transmission mechanism are in transmission connection with the output end respectively.

[0007] By setting the first motor, the second motor, the first disconnecting mechanism, the first transmission mechanism, the second transmission mechanism and the output end in the transmission system, and connecting the first motor with the first transmission mechanism, the second motor with the second transmission mechanism, the first transmission mechanism and the second transmission mechanism with the output end in transmission connection respectively, and setting the first disconnecting mechanism between the first transmission mechanism and the second transmission mechanism. Further, when the first disconnecting mechanism is disconnected, the first transmission mechanism and the second transmission mechanism are separated, at this time, independent driving modes can be realized by the first motor and the second motor respectively; and when the first disconnecting mechanism is engaged, the first transmission mechanism and the second transmission mechanism are in transmission connection, at this time, the driving force of the first motor can be transmitted to the second transmission mechanism via the first transmission mechanism, and the driving force of the second motor can be transmitted to the first transmission mechanism via the second transmission mechanism, so that different driving modes such as double-motor superimposed driving or double-motor parallel driving can be realized. Therefore, by using the transmission system of the application, different driving modes can be realized by the cooperation of the double motors and the first disconnecting mechanism, so as to meet the different driving needs of the vehicle, thereby improving the performance of the vehicle.

[0008] Optionally, the first transmission mechanism comprises a first transmission assembly, a second transmission assembly and a second disconnecting mechanism, the second disconnecting mechanism is a bidirectional disconnecting mechanism; the second disconnecting mechanism is in transmission connection with the first transmission assembly, the second transmission assembly and the first motor respectively, and is used to realize the transmission connection and separation of the first motor and the first transmission assembly, or the transmission connection and separation of the first motor and the second transmission assembly; at least one of the first transmission assembly and the second transmission assembly is in transmission connection with the first disconnecting mechanism; the output end comprises a first output shaft, the first transmission assembly and the second transmission assembly are in transmission connection with the first output shaft respectively, and the transmission ratios of the first transmission assembly and the second transmission assembly are not equal.

[0009] By setting the first transmission mechanism to comprise the first transmission assembly and the second transmission assembly, and making the first transmission assembly and the second transmission assembly have different transmission ratios, so that the driving force of the first motor is transmitted to the output end through the first transmission assembly or the second transmission assembly respectively, thereby controlling different rotating speeds of the vehicle. And, the second disconnecting mechanism is set between the first transmission assembly and the second transmission assembly, the transmission connection and separation between the first motor and the first transmission assembly or the second transmission assembly can be realized through the second disconnecting mechanism, so as to switch different power transmission paths according to needs, that is, to realize gear shifting in the process of vehicle driving, thereby adjusting the driving speed of the vehicle.

[0010] Optionally, the second disconnecting mechanism comprises a first connecting unit, a second connecting unit and a third connecting unit; the first connecting unit is connected with the output end of the first motor, the second connecting unit is connected with the first transmission assembly, and the third connecting unit is connected with the second transmission assembly; the first connecting unit is movably arranged between the second connecting unit and the third connecting unit, and is used for realizing engagement and disengagement of the first connecting unit with the second connecting unit, or engagement and disengagement of the first connecting unit with the third connecting unit.

[0011] By arranging the second disconnecting mechanism to comprise the first connecting unit, the second connecting unit and the third connecting unit, the first connecting unit is movably arranged between the second connecting unit and the third connecting unit, so that the first connecting unit is engaged with the second connecting unit or the first connecting unit is engaged with the third connecting unit. Thus, in the case that the first connecting unit is engaged with the second connecting unit, the power of the first motor is transmitted to the output end through the first connecting unit, the second connecting unit and the first transmission assembly to drive the vehicle to run; in the case that the first connecting unit is engaged with the third connecting unit, the power of the first motor is transmitted to the output end through the first connecting unit, the third connecting unit and the second transmission assembly to drive the vehicle to run, so that the vehicle can flexibly switch the power transmission path according to the driving demand, the structure is simple, and the power transmission is efficient and stable.

[0012] Optionally, the first transmission mechanism further comprises a first input shaft; the first transmission assembly comprises a first gear and a second gear, the first input shaft is connected to the output shaft of the first motor, the first gear is loosely sleeved on the first input shaft and connected with the second connecting unit; the second gear is in transmission connection with the first output shaft, and the first gear is in meshing engagement with the second gear.

[0013] And / or, the second transmission assembly comprises a third gear and a fourth gear, the third gear is loosely sleeved on the first input shaft and connected with the third connecting unit; the fourth gear is in transmission connection with the first output shaft, and the third gear is in meshing engagement with the fourth gear.

[0014] By arranging the first gear and the third gear to be loosely sleeved on the first input shaft 14, and the second gear and the fourth gear to be in transmission connection with the first output shaft, the first gear and the second gear are in meshing engagement, and the third gear and the fourth gear are in meshing engagement, so that the power output by the first motor can be transmitted to the first output shaft through the gear transmission structure to drive the vehicle to run. In this way, not only the power output by the first motor can be efficiently transmitted to the first output shaft to improve the stability and reliability of the power output, but also the overall structure of the transmission system is more compact by adopting the gear transmission structure, and the space occupancy rate is reduced.

[0015] Optionally, the first transmission mechanism further comprises a first intermediate shaft, a fifth gear and a sixth gear, the second gear and / or the fourth gear is connected with the first intermediate shaft, the fifth gear is connected with the first intermediate shaft, the sixth gear is connected with the first output shaft, and the fifth gear is engaged with the sixth gear.

[0016] By arranging the first intermediate shaft, the fifth gear and the sixth gear in the first transmission mechanism, the first intermediate shaft is connected with the second gear and the fourth gear respectively, the fifth gear is connected with the first intermediate shaft, the sixth gear is connected with the first output shaft, and the fifth gear is engaged with the sixth gear, so that the power of the first motor is transmitted to the first intermediate shaft through the first gear and the second gear, and then transmitted to the first output shaft through the fifth gear and the sixth gear, thereby arranging a multi-stage transmission structure between the first motor and the first output shaft to increase the output torque, meet the demand for high torque in vehicle starting, climbing and the like, and optimize the power performance of the vehicle.

[0017] Optionally, the second transmission mechanism comprises a third transmission assembly, a fourth transmission assembly and a third disconnecting mechanism, the third disconnecting mechanism is a bidirectional disconnecting mechanism, the third disconnecting mechanism is in driving connection with the third transmission assembly, the fourth transmission assembly and the second motor respectively, and is used for realizing the driving connection and separation between the second motor and the third transmission assembly, or the driving connection and separation between the second motor and the fourth transmission assembly; at least one of the third transmission assembly and the fourth transmission assembly is in driving connection with the first disconnecting mechanism; the output end further comprises a second output shaft, the third transmission assembly and the fourth transmission assembly are in driving connection with the second output shaft respectively, and the transmission ratios of the third transmission assembly and the fourth transmission assembly are not equal.

[0018] By arranging the second transmission mechanism to comprise the third disconnecting mechanism and the fourth transmission assembly, and arranging the third transmission assembly and the fourth transmission assembly to have different transmission ratios, the driving force of the second motor is transmitted to the output end through the third transmission assembly or the fourth transmission assembly respectively, so as to control different rotating speeds of the vehicle. Moreover, the third disconnecting mechanism is arranged between the third transmission assembly and the fourth transmission assembly, the driving connection and separation between the second motor and the third transmission assembly or the fourth transmission assembly can be realized through the third disconnecting mechanism, so as to switch different power transmission paths according to the demand, that is, to realize gear shifting in the process of vehicle driving, so as to adjust the driving speed of the vehicle.

[0019] Optionally, the third disconnecting mechanism comprises a fourth connecting unit, a fifth connecting unit and a sixth connecting unit; the fourth connecting unit is connected with the second motor, the fifth connecting unit is connected with the third transmission assembly, and the sixth connecting unit is connected with the fourth transmission assembly; the fourth connecting unit is movably arranged between the fifth connecting unit and the sixth connecting unit, and is used for achieving engagement and disengagement between the fourth connecting unit and the fifth connecting unit, or engagement and disengagement between the fourth connecting unit and the sixth connecting unit.

[0020] By arranging the third disconnecting mechanism to comprise the fourth connecting unit, the fifth connecting unit and the sixth connecting unit, the fourth connecting unit is movably arranged between the fifth connecting unit and the sixth connecting unit, so that the fourth connecting unit is engaged with the fifth connecting unit or the fourth connecting unit is engaged with the sixth connecting unit. Thus, in the case that the fourth connecting unit is engaged with the fifth connecting unit, the power of the second motor is transmitted to the output end through the fourth connecting unit, the fifth connecting unit and the third transmission assembly to drive the vehicle to run; in the case that the fourth connecting unit is engaged with the sixth connecting unit, the power of the second motor is transmitted to the output end through the fourth connecting unit, the sixth connecting unit and the fourth transmission assembly to drive the vehicle to run, so that the vehicle can flexibly switch the power transmission path according to the driving requirement, the structure is simple, and the power transmission is efficient and stable.

[0021] Optionally, the second transmission mechanism further comprises a second input shaft; the third transmission assembly comprises a seventh gear and an eighth gear, the second input shaft is connected to the output shaft of the second motor, the seventh gear is loosely sleeved on the second input shaft and connected with the fifth connecting unit; the eighth gear is in transmission connection with the second output shaft, and the seventh gear is in meshing connection with the eighth gear.

[0022] And / or, the fourth transmission assembly comprises a ninth gear and a tenth gear, the ninth gear is loosely sleeved on the second input shaft and connected with the sixth connecting unit; the tenth gear is in transmission connection with the second output shaft, and the ninth gear is in meshing connection with the tenth gear.

[0023] By arranging the seventh gear and the ninth gear which are loosely sleeved on the second input shaft, and the eighth gear and the tenth gear which are in transmission connection with the second output shaft, the seventh gear and the eighth gear are in meshing connection, and the eighth gear and the tenth gear are in meshing connection, so that the power output by the second motor can be transmitted to the second output shaft through the gear transmission structure to drive the vehicle to run. In this way, not only the power output by the second motor can be efficiently transmitted to the second output shaft to improve the stability and reliability of the power output, but also the overall structure of the transmission system is more compact by adopting the gear transmission structure, and the space occupancy rate is reduced.

[0024] Optionally, the second transmission mechanism further comprises a second intermediate shaft, an eleventh gear and a twelfth gear, the eighth gear and / or the tenth gear is connected with the second intermediate shaft, the eleventh gear is connected with the second intermediate shaft, the twelfth gear is connected with the second output shaft, and the eleventh gear is engaged with the twelfth gear.

[0025] By arranging the second intermediate shaft, the eleventh gear and the twelfth gear in the second transmission mechanism, the second intermediate shaft is connected with the eighth gear and the tenth gear respectively, the eleventh gear is connected with the second intermediate shaft, the twelfth gear is connected with the second output shaft, and the eleventh gear is engaged with the twelfth gear, so that the power of the second motor is transmitted to the second intermediate shaft via the seventh gear and the eighth gear, and then transmitted to the second output shaft via the engagement of the eleventh gear and the twelfth gear, thereby arranging a multi-stage transmission structure between the second motor and the second output shaft to increase the output torque, meet the demand for high torque in vehicle starting, climbing and the like, and thus optimize the power performance of the vehicle.

[0026] Optionally, the first transmission mechanism comprises a first input transmission group and a first output transmission group, the first input transmission group is in driving connection with the first motor, and the first output transmission group is connected with the output end; the second transmission mechanism comprises a second input transmission group and a second output transmission group, the second input transmission group is connected with the second motor, and the second output transmission group is connected with the output end; the first disconnecting mechanism comprises a seventh connecting unit and an eighth connecting unit, the seventh connecting unit is connected with the first input transmission group, and the eighth connecting unit is connected with the second input transmission group, so as to realize the driving connection and separation of the first input transmission group and the second input transmission group.

[0027] Alternatively, the seventh connecting unit is connected with the first output transmission group, and the eighth connecting unit is connected with the second output transmission group, so as to realize the driving connection and separation of the first output transmission group and the second output transmission group.

[0028] By arranging the first disconnecting mechanism to comprise the seventh connecting unit and the eighth connecting unit, the seventh connecting unit is connected with the first input transmission group, and the eighth connecting unit is connected with the second input transmission group, so that the power of the first motor can be transmitted to the output end not only through the first input transmission group and the first output transmission group, but also through the first input transmission group to the second input transmission group and then through the second output transmission group to the output end. Similarly, the second motor can drive not only the second input transmission group, but also the first input transmission group. In this way, through the cooperation of the first motor, the second motor and the first disconnecting mechanism, various different driving modes can be realized to meet the different power performance requirements of the vehicle.

[0029] Optionally, the first transmission mechanism comprises a first input shaft, and the second transmission mechanism comprises a second input shaft; the first input shaft is connected to an output end of the first motor, the first input transmission set is in transmission connection with the first input shaft, the second input shaft is connected to an output end of the second motor, the second input transmission set is in transmission connection with the second input shaft, the seventh connecting unit is connected with the first input shaft, and the eighth connecting unit is connected with the second input shaft.

[0030] Alternatively, the output end comprises a first output shaft and a second output shaft; the first output shaft is connected to the first output transmission set, the second output shaft is connected to the second output transmission set, the seventh connecting unit is connected with the first output shaft, and the eighth connecting unit is connected with the second output shaft.

[0031] By arranging the first input shaft, the second input shaft, the first output shaft and the second output shaft, the connection between the first motor and the first input transmission set and the connection between the second motor and the second input transmission set are more flexible, which facilitates installation and maintenance and optimizes the internal space layout of the vehicle.

[0032] Optionally, the output end comprises a first output end and a second output end; the first output end comprises a first intermediate shaft, a first gear set and a first output shaft, the first intermediate shaft is connected to the first output transmission set, and the first gear set is connected with the first intermediate shaft and the first output shaft respectively; the second output end comprises a second intermediate shaft, a second gear set and a second output shaft, the second intermediate shaft is connected to the second output transmission set, and the second gear set is connected with the second intermediate shaft and the second output shaft respectively; the first disconnecting mechanism is arranged between the first intermediate shaft and the second intermediate shaft, and the first disconnecting mechanism is in transmission connection with the first intermediate shaft and the second intermediate shaft respectively, so as to realize the transmission connection and separation between the first output transmission set and the second output transmission set.

[0033] Alternatively, the first disconnecting mechanism is arranged between the first output shaft and the second output shaft, and the first disconnecting mechanism is in transmission connection with the first output shaft and the second output shaft respectively, so as to realize the transmission connection and separation between the first output transmission set and the second output transmission set.

[0034] In the embodiments of the present application, by arranging the first output shaft and the second output shaft, the first disconnecting mechanism is in transmission connection with the first output shaft and the second output shaft respectively, so as to realize the transmission connection and separation between the first output transmission set and the second output transmission set, and the connection between the first output transmission set, the second output transmission set and the output end is more flexible, and the internal space layout of the vehicle is optimized.

[0035] The embodiment of the present application also provides a vehicle comprising the transmission system.

[0036] The vehicle has the same advantages as the transmission system described above relative to the prior art, which will not be repeated here.

[0037] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic diagram of a transmission system provided by an embodiment of the present application;

[0039] Figure 2 is a schematic diagram of a transmission system provided by an embodiment of the present application;

[0040] Figure 3 is a schematic diagram of a transmission system provided by an embodiment of the present application;

[0041] Figure 4 is a first structural schematic diagram of a transmission system provided by an embodiment of the present application;

[0042] Figure 5 is a second structural schematic diagram of a transmission system provided by an embodiment of the present application;

[0043] Figure 6 is a third structural schematic diagram of a transmission system provided by an embodiment of the present application;

[0044] Figure 7 is a fourth structural schematic diagram of a transmission system provided by an embodiment of the present application;

[0045] Figure 8 is a fifth structural schematic diagram of a transmission system provided by an embodiment of the present application.

[0046] BRIEF DESCRIPTION OF DRAWINGS

[0047] 10: first transmission mechanism; 11: first transmission assembly; 111: first gear; 112: second gear; 12: second transmission assembly; 121: third gear; 122: fourth gear; 13: second disconnect mechanism; 131: first connecting unit; 132: second connecting unit; 133: third connecting unit; 14: first input shaft; 15: first intermediate shaft; 16: fifth gear; 17: sixth gear; 101: first input transmission group; 102: first output transmission group; 20: second transmission mechanism; 21: third transmission assembly; 211: seventh gear; 212: eighth gear; 22: fourth transmission assembly; 221: ninth gear; 222: tenth gear; 23: third disconnect mechanism; 231: fourth connecting unit; 232: fifth connecting unit; 233: sixth connecting unit; 24: second input shaft; 25: second intermediate shaft; 26: eleventh gear; 27: twelfth gear; 201: second input transmission group; 202: second output transmission group; 30: first disconnect mechanism; 31: seventh connecting unit; 32: eighth connecting unit; 40: first motor; 50: second motor; 60: output end; 61: first output shaft; 62: second output shaft. DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and beneficial effects solved in the present application clearer, the present application will be further described in detail below with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0049] As shown in Figure 1 A transmission system provided by an embodiment of the present application includes a first motor 40, a second motor 50, a first disconnect mechanism 30, a first transmission mechanism 10, a second transmission mechanism 20 and an output end 60. The first transmission mechanism 10 is in transmission connection with the first motor 40, and the second transmission mechanism 20 is in transmission connection with the second motor 50. The first disconnect mechanism 30 is arranged between the first transmission mechanism 10 and the second transmission mechanism 20, and is in transmission connection with the first transmission mechanism 10 and the second transmission mechanism 20 respectively, and is used for realizing transmission connection and separation of the first transmission mechanism 10 and the second transmission mechanism 20. The first transmission mechanism 10 and the second transmission mechanism 20 are in transmission connection with the output end 60 respectively.

[0050] In the embodiment of the present application, the first motor 40, the second motor 50, the first disconnect mechanism 30, the first transmission mechanism 10, the second transmission mechanism 20 and the output end 60 are arranged in the transmission system, the first motor 40 is connected with the first transmission mechanism 10, the second motor 50 is connected with the second transmission mechanism 20, the first transmission mechanism 10 and the second transmission mechanism 20 are respectively in transmission connection with the output end 60, and the first disconnect mechanism 30 is arranged between the first transmission mechanism 10 and the second transmission mechanism 20. Further, when the first disconnect mechanism 30 is disconnected, the first transmission mechanism 10 and the second transmission mechanism 20 are separated, at this time, independent driving modes can be respectively realized by the first motor 40 and the second motor 50; when the first disconnect mechanism 30 is engaged, the first transmission mechanism 10 and the second transmission mechanism 20 are in transmission connection, at this time, the driving force of the first motor 40 can be conducted to the second transmission mechanism 20 via the first transmission mechanism 10, and the driving force of the second motor 50 can be conducted to the first transmission mechanism 10 via the second transmission mechanism 20, so that different driving modes such as double-motor superposition driving or double-motor parallel driving can be realized. Therefore, by using the transmission system of the present application, different driving modes can be realized by cooperation of the double motors and the first disconnect mechanism 30, so as to meet different driving requirements of the vehicle, thereby improving the performance of the vehicle.

[0051] In addition, by arranging the first motor 40 and the second motor 50, in the process of vehicle driving, when one of the motors fails, the other motor can still normally output power, so that interruption of the power source of the vehicle can be prevented, thereby ensuring the vehicle to continue normal driving, and improving the safety and reliability of the vehicle. At the same time, the first motor 40 and the second motor 50 respectively drive the left and right wheels of the vehicle, so that the first motor 40 and the second motor 50 can independently control the torque and speed of each other, thereby facilitating flexible adjustment of the output of the two motors according to the driving state of the vehicle, such as the steering angle, the vehicle speed, the road condition and other information, so as to meet different control requirements of the vehicle. For example, when the vehicle turns, the motor controlling the outer wheel can increase the speed and torque, and the motor controlling the inner wheel can reduce the speed and torque, so as to realize the function similar to the differential, and ensure the smooth turning of the vehicle. In this way, the differential can be cancelled, and the manufacturing cost of the vehicle is reduced.

[0052] Optionally, as Figure 2As shown, the first transmission mechanism 10 comprises a first transmission assembly 11, a second transmission assembly 12, and a second disconnect mechanism 13 which is a bidirectional disconnect mechanism; the second disconnect mechanism 13 is in transmission connection with the first transmission assembly 11, the second transmission assembly 12, and the first motor 40 respectively, and is used to realize the transmission connection and separation between the first motor 40 and the first transmission assembly 11, or the transmission connection and separation between the first motor 40 and the second transmission assembly 12; at least one of the first transmission assembly 11 and the second transmission assembly 12 is in transmission connection with the first disconnect mechanism 30; the output end 60 comprises a first output shaft 61, and the first transmission assembly 11 and the second transmission assembly 12 are in transmission connection with the first output shaft 61 respectively, and the transmission ratios of the first transmission assembly 11 and the second transmission assembly 12 are not equal.

[0053] In the embodiment of the present application, the first transmission mechanism 10 comprises the first transmission assembly 11 and the second transmission assembly 12, and the first transmission assembly 11 and the second transmission assembly 12 have different transmission ratios, so that the driving force of the first motor 40 is transmitted to the output end 60 through the first transmission assembly 11 or the second transmission assembly 12 respectively, thereby controlling different rotating speeds of the vehicle. Moreover, the second disconnect mechanism 13 is arranged between the first transmission assembly 11 and the second transmission assembly 12, and the transmission connection and separation between the first motor 40 and the first transmission assembly 11 or the second transmission assembly 12 can be realized through the second disconnect mechanism 13, so as to switch different power transmission paths according to requirements, that is, to realize gear shifting in the process of vehicle driving, thereby adjusting the driving speed of the vehicle.

[0054] Specifically, when the first disconnect mechanism 30 is in the disconnected state and the second disconnect mechanism 13 realizes the transmission connection between the first motor 40 and the first transmission assembly 11, the power of the first motor 40 is transmitted to the first output shaft 61 through the first transmission assembly 11, and the first independent driving mode of the first motor 40 can be realized.

[0055] Correspondingly, when the first disconnect mechanism 30 is in the disconnected state and the second disconnect mechanism 13 realizes the transmission connection between the first motor 40 and the second transmission assembly 12, the power of the first motor 40 is transmitted to the second output shaft 62 through the second transmission assembly 12, and the second independent driving mode of the first motor 40 can be realized.

[0056] It can be understood that the second disconnect mechanism 13 can be one of a bidirectional wet clutch, a bidirectional electromagnetic clutch, a synchronizer, etc., and a person skilled in the art can select according to requirements, and the present application does not make any limitation.

[0057] Optionally, the second disconnecting mechanism 13 comprises a first connecting unit 131, a second connecting unit 132 and a third connecting unit 133; the first connecting unit 131 is connected with the output end 60 of the first motor 40, the second connecting unit 132 is connected with the first transmission assembly 11, and the third connecting unit 133 is connected with the second transmission assembly 12; the first connecting unit 131 is movably arranged between the second connecting unit 132 and the third connecting unit 133, and is used for realizing the engagement and disengagement between the first connecting unit 131 and the second connecting unit 132, or the engagement and disengagement between the first connecting unit 131 and the third connecting unit 133.

[0058] In the embodiment of the present application, by arranging the second disconnecting mechanism 13 to comprise the first connecting unit 131, the second connecting unit 132 and the third connecting unit 133, the first connecting unit 131 is movably arranged between the second connecting unit 132 and the third connecting unit 133, so as to engage the first connecting unit 131 with the second connecting unit 132 or engage the first connecting unit 131 with the third connecting unit 133. Thus, in the case of engaging the first connecting unit 131 with the second connecting unit 132, the power of the first motor 40 is transmitted to the output end 60 through the first connecting unit 131, the second connecting unit 132 and the first transmission assembly 11, so as to drive the vehicle to run; in the case of engaging the first connecting unit 131 with the third connecting unit 133, the power of the first motor 40 is transmitted to the output end 60 through the first connecting unit 131, the third connecting unit 133 and the second transmission assembly 12, so as to drive the vehicle to run, thereby enabling the vehicle to flexibly switch the power transmission path according to the driving demand, and the structure is simple and the power transmission is efficient and stable.

[0059] Optionally, as shown in Figure 2 the first transmission mechanism 10 further comprises a first input shaft 14; the first transmission assembly 11 comprises a first gear 111 and a second gear 112, the first input shaft 14 is connected with the output shaft of the first motor 40, the first gear 111 is sleeved on the first input shaft 14 and connected with the second connecting unit 132; the second gear 112 is in transmission connection with the first output shaft 61, and the first gear 111 is in meshing connection with the second gear 112.

[0060] In the embodiment of the present application, the first input shaft 14 is connected with the output shaft of the first motor 40, the first gear 111 is arranged on the first input shaft 14 in a sleeving mode, the second gear 112 is in transmission connection with the first output shaft 61, the first gear 111 and the second gear 112 are engaged, and thus the power output by the first motor 40 can be transmitted to the first output shaft 61 through the gear transmission structure to drive the vehicle to run. In this way, the power output by the first motor 40 can be efficiently transmitted to the first output shaft 61, the stability and reliability of the power output are improved, the gear transmission structure is adopted, the overall structure of the transmission system is more compact, and the space occupancy rate is reduced.

[0061] Optionally, as shown in Figure 2 the second transmission assembly 12 includes a third gear 121 and a fourth gear 122, the third gear 121 is arranged on the first input shaft 14 in a sleeving mode and is connected with the third connecting unit 133, the fourth gear 122 is in transmission connection with the first output shaft 61, and the third gear 121 is engaged with the fourth gear 122.

[0062] In the embodiment of the present application, the third gear 121 is arranged on the first input shaft 14 in a sleeving mode, the fourth gear 122 is in transmission connection with the first output shaft 61, the third gear 121 and the fourth gear 122 are engaged, and thus the power output by the first motor 40 can be transmitted to the first output shaft 61 through the gear transmission structure to drive the vehicle to run. In this way, the power output by the first motor 40 can be efficiently transmitted to the first output shaft 61, the stability and reliability of the power output are improved, the gear transmission structure is adopted, the overall structure of the transmission system is more compact, and the space occupancy rate is reduced.

[0063] Optionally, as shown in Figure 3 the first transmission mechanism 10 further includes a first intermediate shaft 15, a fifth gear 16 and a sixth gear 17, the second gear 112 and / or the fourth gear 122 is connected with the first intermediate shaft 15, the fifth gear 16 is connected with the first intermediate shaft 15, the sixth gear 17 is connected with the first output shaft 61, and the fifth gear 16 is engaged with the sixth gear 17.

[0064] In the embodiment of the present application, the first intermediate shaft 15 is connected with the second gear 112 and the fourth gear 122 respectively, the fifth gear 16 is connected with the first intermediate shaft 15, the sixth gear 17 is connected with the first output shaft 61, the fifth gear 16 is engaged with the sixth gear 17, the power of the first motor 40 is transmitted to the first intermediate shaft 15 through the first gear 111 and the second gear 112, and then transmitted to the first output shaft 61 through the fifth gear 16 and the sixth gear 17, so that the multi-stage transmission structure is arranged between the first motor 40 and the first output shaft 61, so as to increase the output torque, meet the demand for high torque in vehicle starting, climbing and the like, and thus optimize the power performance of the vehicle.

[0065] Optionally, as shown in Figure 2 The second transmission mechanism 20 includes a third transmission assembly 21, a fourth transmission assembly 22 and a third disconnecting mechanism 23, the third disconnecting mechanism 23 is a bidirectional disconnecting mechanism; the third disconnecting mechanism 23 is in driving connection with the third transmission assembly 21, the fourth transmission assembly 22 and the second motor 50 respectively, and is used for realizing the driving connection and separation between the second motor 50 and the third transmission assembly 21, or the driving connection and separation between the second motor 50 and the fourth transmission assembly 22; at least one of the third transmission assembly 21 and the fourth transmission assembly 22 is in driving connection with the first disconnecting mechanism 30; the output end 60 further includes a second output shaft 62, the third transmission assembly 21 and the fourth transmission assembly 22 are in driving connection with the second output shaft 62 respectively, and the transmission ratios of the third transmission assembly 21 and the fourth transmission assembly 22 are not equal.

[0066] In the embodiment of the present application, the second transmission mechanism 20 includes the third disconnecting mechanism 23 and the fourth transmission assembly 22, and the third transmission assembly 21 and the fourth transmission assembly 22 have different transmission ratios, so that the driving force of the second motor 50 is transmitted to the output end 60 through the third transmission assembly 21 or the fourth transmission assembly 22 respectively, thereby controlling different rotating speeds of the vehicle. Moreover, the third disconnecting mechanism 23 is arranged between the third transmission assembly 21 and the fourth transmission assembly 22, and the driving connection and separation between the second motor 50 and the third transmission assembly 21 or the fourth transmission assembly 22 can be realized through the third disconnecting mechanism 23, so as to switch different power transmission paths according to the demand, that is, to realize gear shifting in the process of vehicle driving, thereby adjusting the driving speed of the vehicle.

[0067] Specifically, when the first disconnecting mechanism 30 is in the disconnected state, and the third disconnecting mechanism 23 realizes the driving connection between the second motor 50 and the third transmission assembly 21, the power of the second motor 50 is transmitted to the second output shaft 62 through the third transmission assembly 21, and the first independent driving mode of the second motor 50 can be realized.

[0068] Correspondingly, when the first disconnecting mechanism 30 is in the disconnected state, and the third disconnecting mechanism 23 realizes the transmission connection between the second motor 50 and the fourth transmission assembly 22, the power of the second motor 50 is transmitted to the second output shaft 62 through the fourth transmission assembly 22, and the second independent driving mode of the second motor 50 can be realized.

[0069] It can be understood that the third disconnecting mechanism 23 can be one of a bidirectional wet clutch, a bidirectional electromagnetic clutch, a synchronizer, etc., which can be selected by those skilled in the art according to requirements, and the present application does not limit this.

[0070] Optionally, as shown in Figure 2 The third disconnecting mechanism 23 includes a fourth connecting unit 231, a fifth connecting unit 232, and a sixth connecting unit 233; the fourth connecting unit 231 is connected with the second motor 50, the fifth connecting unit 232 is connected with the third transmission assembly 21, and the sixth connecting unit 233 is connected with the fourth transmission assembly 22; the fourth connecting unit 231 is movably arranged between the fifth connecting unit 232 and the sixth connecting unit 233, and is used to realize the engagement and separation between the fourth connecting unit 231 and the fifth connecting unit 232, or the engagement and separation between the fourth connecting unit 231 and the sixth connecting unit 233.

[0071] In the embodiment of the present application, the third disconnecting mechanism 23 includes the fourth connecting unit 231, the fifth connecting unit 232, and the sixth connecting unit 233, and the fourth connecting unit 231 is movably arranged between the fifth connecting unit 232 and the sixth connecting unit 233, so that the fourth connecting unit 231 is engaged with the fifth connecting unit 232 or the fourth connecting unit 231 is engaged with the sixth connecting unit 233. Therefore, in the case that the fourth connecting unit 231 is engaged with the fifth connecting unit 232, the power of the second motor 50 is conducted to the output end 60 through the fourth connecting unit 231, the fifth connecting unit 232, and the third transmission assembly 21 to drive the vehicle to run; in the case that the fourth connecting unit 231 is engaged with the sixth connecting unit 233, the power of the second motor 50 is conducted to the output end 60 through the fourth connecting unit 231, the sixth connecting unit 233, and the fourth transmission assembly 22 to drive the vehicle to run, so that the vehicle can flexibly switch the power transmission path according to the driving requirement, the structure is simple, and the power transmission is efficient and stable.

[0072] Optionally, as shown in Figure 2As shown, the second transmission mechanism 20 further comprises a second input shaft 24; the third transmission assembly 21 comprises a seventh gear 211 and an eighth gear 212, the second input shaft 24 is connected to the output shaft of the second motor 50, the seventh gear 211 is sleeved on the second input shaft 24 and connected with the fifth connecting unit 232; the eighth gear 212 is in transmission connection with the second output shaft 62, and the seventh gear 211 is in meshing with the eighth gear 212.

[0073] In the embodiment of the present application, the second input shaft 24 is connected with the output shaft of the second motor 50, and the seventh gear 211 sleeved on the second input shaft 24 and the eighth gear 212 in transmission connection with the second output shaft 62 are arranged, so that the seventh gear 211 and the eighth gear 212 are in meshing, thereby the power output by the second motor 50 can be transmitted to the second output shaft 62 through the gear transmission structure to drive the vehicle to run, so that not only the power of the second motor 50 can be efficiently transmitted to the second output shaft 62, the stability and reliability of power output are improved, but also the overall structure of the transmission system is more compact by using the gear transmission structure, and the space occupancy rate is reduced.

[0074] Optionally, as shown in Figure 2 As shown, the fourth transmission assembly 22 comprises a ninth gear 221 and a tenth gear 222, the ninth gear 221 is sleeved on the second input shaft 24 and connected with the sixth connecting unit 233; the tenth gear 222 is in transmission connection with the second output shaft 62, and the ninth gear 221 is in meshing with the tenth gear 222.

[0075] In the embodiment of the present application, the ninth gear 221 sleeved on the second input shaft 24 and the tenth gear 222 in transmission connection with the second output shaft 62 are arranged, so that the ninth gear 221 and the tenth gear 222 are in meshing, thereby the power output by the second motor 50 can be transmitted to the second output shaft 62 through the gear transmission structure to drive the vehicle to run, so that not only the power of the second motor 50 can be efficiently transmitted to the second output shaft 62, the stability and reliability of power output are improved, but also the overall structure of the transmission system is more compact by using the gear transmission structure, and the space occupancy rate is reduced.

[0076] Optionally, as shown in Figure 3 As shown, the second transmission mechanism 20 further comprises a second intermediate shaft 25, an eleventh gear 26 and a twelfth gear 27, the eighth gear 212 and / or the tenth gear 222 are connected with the second intermediate shaft 25, the eleventh gear 26 is connected to the second intermediate shaft 25, the twelfth gear 27 is connected to the second output shaft 62, and the eleventh gear 26 is in meshing with the twelfth gear 27.

[0077] In the embodiment of the present application, the second intermediate shaft 25 is connected with the eighth gear 212 and the tenth gear 222, the eleventh gear 26 is connected with the second intermediate shaft 25, the twelfth gear 27 is connected with the second output shaft 62, the eleventh gear 26 is engaged with the twelfth gear 27, the power of the second motor 50 is transmitted to the second intermediate shaft 25 through the seventh gear 211 and the eighth gear 212, and then transmitted to the second output shaft 62 through the engagement of the eleventh gear 26 and the twelfth gear 27, so that the multi-stage transmission structure is arranged between the second motor 50 and the second output shaft 62, so as to increase the output torque, meet the demand for high torque of vehicle starting, climbing and the like, and thus optimize the power performance of the vehicle.

[0078] In some embodiments, the transmission system provided by the present application can realize at least sixteen driving modes of the vehicle, and Table 1 shows the working conditions of the first motor 40, the second motor 50, and the first disconnecting mechanism 30, the second disconnecting mechanism 13 and the third disconnecting mechanism 23 in the sixteen driving modes:

[0079] Table 1

[0080]

[0081]

[0082] It should be noted that in Table 1, the black dot indicates that the corresponding component in the transmission system is in working state, and the blank indicates that the corresponding component in the transmission system is in non-working state.

[0083] According to Table 1 and Figure 2 , it can be seen that the transmission system of the embodiment can realize at least four independent driving modes, four superimposed driving modes, four parallel driving modes and brake energy recovery mode.

[0084] Specifically, in the independent driving mode, the first disconnecting mechanism 30 is in the disconnected state, and the first motor 40 and the second motor 50 independently drive the corresponding transmission assemblies, respectively.

[0085] In the first independent driving mode, the power transmission path of the transmission system is: the first motor 40-first connecting unit 131-second connecting unit 132-first gear 111-second gear 112-first output shaft 61; the second motor 50-fourth connecting unit 231-fifth connecting unit 232-seventh gear 211-eighth gear 212-second output shaft 62.

[0086] In the first independent driving mode, the power transmission path of the transmission system is: the first motor 40-the first connecting unit 131-the second connecting unit 132-the first gear 111-the second gear 112-the first output shaft 61; the second motor 50-the fourth connecting unit 231-the sixth connecting unit 233-the ninth gear 221-the tenth gear 222-the second output shaft 62.

[0087] In the third independent driving mode, the power transmission path of the transmission system is: the first motor 40-the first connecting unit 131-the third connecting unit 133-the third gear 121-the fourth gear 122-the first output shaft 61; the second motor 50-the fourth connecting unit 231-the fifth connecting unit 232-the seventh gear 211-the eighth gear 212-the second output shaft 62.

[0088] In the fourth independent driving mode, the power transmission path of the transmission system is: the first motor 40-the first connecting unit 131-the third connecting unit 133-the third gear 121-the fourth gear 122-the first output shaft 61; the second motor 50-the fourth connecting unit 231-the sixth connecting unit 233-the ninth gear 221-the tenth gear 222-the second output shaft 62.

[0089] Specifically, in the superposition driving mode, the first disconnecting mechanism 30 is engaged, and the first transmission assembly 11 is driven by the first motor 40 and the second motor 50 simultaneously, or the second transmission assembly 12 is driven by the first motor 40 and the second motor 50 simultaneously, or the third transmission assembly 21 is driven by the first motor 40 and the second motor 50 simultaneously, or the fourth transmission assembly 22 is driven by the first motor 40 and the second motor 50 simultaneously:

[0090] In the first superposition driving mode, the power transmission path of the transmission system is: the first motor 40-the first connecting unit 131-the second connecting unit 132-the first gear 111-the second gear 112-the first output shaft 61; the second motor 50-the fourth connecting unit 231-the second input shaft 24-the first disconnecting mechanism 30-the first input shaft 14-the first connecting unit 131-the second connecting unit 132-the first gear 111-the second gear 112-the first output shaft 61.

[0091] In the second superposition driving mode, the power transmission path of the transmission system is: the first motor 40-the first connecting unit 131-the third connecting unit 133-the third gear 121-the fourth gear 122-the first output shaft 61; the second motor 50-the fourth connecting unit 231-the second input shaft 24-the first disconnecting mechanism 30-the first input shaft 14-the first connecting unit 131-the third connecting unit 133-the third gear 121-the fourth gear 122-the first output shaft 61.

[0092] In the third superimposed driving mode, the power transmission path of the transmission system is: the first motor 40-first connecting unit 131-first input shaft 14-first disengaging mechanism 30-second input shaft 24-fourth connecting unit 231-fifth connecting unit 232-seventh gear 211-eighth gear 212-second output shaft 62; the second motor 50-fourth connecting unit 231-fifth connecting unit 232-seventh gear 211-eighth gear 212-second output shaft 62.

[0093] In the fourth superimposed driving mode, the power transmission path of the transmission system is: the first motor 40-first connecting unit 131-first input shaft 14-first disengaging mechanism 30-second input shaft 24-fourth connecting unit 231-sixth connecting unit 233-ninth gear 221-tenth gear 222-second output shaft 62; the second motor 50-fourth connecting unit 231-sixth connecting unit 233-ninth gear 221-tenth gear 222-second output shaft 62.

[0094] Specifically, in the parallel driving mode, the first disengaging mechanism 30 is engaged, and the first motor 40 and the second motor 50 can respectively drive the corresponding transmission assemblies alone, and at the same time, can also superimpose drive other transmission assemblies through the first disengaging mechanism 30:

[0095] In the first parallel driving mode, the power transmission path of the transmission system is: the first motor 40-first connecting unit 131-second connecting unit 132-first gear 111-second gear 112-first output shaft 61; the second motor 50-fourth connecting unit 231-fifth connecting unit 232-seventh gear 211-eighth gear 212-second output shaft 62; partial superimposition: the second motor 50-fourth connecting unit 231-second input shaft 24-first disengaging mechanism 30-first input shaft 14-first connecting unit 131-second connecting unit 132-first gear 111-second gear 112-first output shaft 61; or partial superimposition: the first motor 40-first connecting unit 131-first input shaft 14-first disengaging mechanism 30-second input shaft 24-fourth connecting unit 231-fifth connecting unit 232-seventh gear 211-eighth gear 212-second output shaft 62.

[0096] In the second parallel driving mode, the power transmission path of the transmission system is: the first motor 40-the first connecting unit 131-the second connecting unit 132-the first gear 111-the second gear 112-the first output shaft 61; the second motor 50-the fourth connecting unit 231-the sixth connecting unit 233-the ninth gear 221-the tenth gear 222-the second output shaft 62; partially superimposed: the second motor 50-the fourth connecting unit 231-the second input shaft 24-the first disconnecting mechanism 30-the first input shaft 14-the first connecting unit 131-the second connecting unit 132-the first gear 111-the second gear 112-the first output shaft 61; or partially superimposed: the first motor 40-the first connecting unit 131-the first input shaft 14-the first disconnecting mechanism 30-the second input shaft 24-the fourth connecting unit 231-the sixth connecting unit 233-the ninth gear 221-the tenth gear 222-the second output shaft 62.

[0097] In the third parallel driving mode, the power transmission path of the transmission system is: the first motor 40-the first connecting unit 131-the third connecting unit 133-the third gear 121-the fourth gear 122-the first output shaft 61; the second motor 50-the fourth connecting unit 231-the fifth connecting unit 232-the seventh gear 211-the eighth gear 212-the second output shaft 62; partially superimposed: the first motor 40-the first connecting unit 131-the first input shaft 14-the first disconnecting mechanism 30-the second input shaft 24-the fourth connecting unit 231-the fifth connecting unit 232-the seventh gear 211-the eighth gear 212-the second output shaft 62; or partially superimposed: the second motor 50-the fourth connecting unit 231-the second input shaft 24-the first disconnecting mechanism 30-the first input shaft 14-the first connecting unit 131-the third connecting unit 133-the third gear 121-the fourth gear 122-the first output shaft 61.

[0098] In the fourth parallel driving mode, the power transmission path of the transmission system is: the first motor 40-the first connecting unit 131-the third connecting unit 133-the third gear 121-the fourth gear 122-the first output shaft 61; the second motor 50-the fourth connecting unit 231-the sixth connecting unit 233-the ninth gear 221-the tenth gear 222-the second output shaft 62; partially superimposed: the second motor 50-the fourth connecting unit 231-the second input shaft 24-the first disconnecting mechanism 30-the first input shaft 14-the first connecting unit 131-the third connecting unit 133-the third gear 121-the fourth gear 122-the first output shaft 61; or partially superimposed: the first motor 40-the first connecting unit 131-the first input shaft 14-the first disconnecting mechanism 30-the second input shaft 24-the fourth connecting unit 231-the sixth connecting unit 233-the ninth gear 221-the tenth gear 222-the second output shaft 62.

[0099] It should be noted that the transmission system in the present application can be flexibly switched between the independent driving mode, the parallel driving mode and the superimposed driving mode to realize different operation modes of the vehicle. For example, when the vehicle is trapped and needs to be rescued, or the vehicle needs to be accelerated urgently or climbs a long distance, the power of the first motor 40 and the second motor 50 can be superimposed and output through the superimposed driving mode to provide greater power for the vehicle. For another example, when the vehicle performs a stunt show, or drives on an icy or wet road surface, the stability and optimization of the power output can be realized through the parallel driving mode.

[0100] In some embodiments, the first motor 40 or the second motor 50 includes a driving motor and a generating motor, that is, the first motor 40 and the second motor 50 can not only convert electrical energy into mechanical energy to provide power for the driving of the vehicle. At the same time, during the braking or deceleration of the vehicle, the first motor 40 and the second motor 50 can also be switched to the generating mode to convert the kinetic energy of the vehicle into electrical energy and store it in the energy storage device (such as a battery pack), so as to realize the function of recovering the braking energy. The braking energy recovery mode can convert the kinetic energy of the vehicle into electrical energy and store it in the battery pack, so that the energy of the transmission system is effectively recovered and reused, which not only improves the overall energy utilization efficiency, but also provides additional cruising range for the vehicle.

[0101] It should be noted that in the braking energy recovery mode, the power transmission path of the transmission system is opposite to the power transmission path in the power transmission mode in the above-mentioned embodiments, which can be understood with reference to, and will not be described here again.

[0102] It should be noted that the first disconnecting mechanism 30 is arranged between the first transmission mechanism 10 and the second transmission mechanism 20, and the first disconnecting mechanism 30 is in driving connection with the first transmission mechanism 10 and the second transmission mechanism 20 respectively, for realizing the driving connection and separation of the first transmission mechanism 10 and the second transmission mechanism 20, and the setting position can be flexibly adjusted according to the specific structure of the first transmission mechanism 10 and the second transmission mechanism 20. Among them, when the first disconnecting mechanism 30 is arranged at different positions between the first transmission mechanism 10 and the second transmission mechanism 20, the corresponding power transmission path can be understood with reference to the foregoing embodiments, and will not be described here again.

[0103] In some embodiments, as Figure 4 and Figure 8As shown, the first transmission mechanism 10 comprises a first input transmission set 101 and a first output transmission set 102, the first input transmission set 101 is in transmission connection with the first motor 40, and the first output transmission set 102 is connected with the output end 60; the second transmission mechanism 20 comprises a second input transmission set 201 and a second output transmission set 202, the second input transmission set 201 is connected with the second motor 50, and the second output transmission set 202 is connected with the output end 60; the first disconnecting mechanism 30 comprises a seventh connecting unit 31 and an eighth connecting unit 32, the seventh connecting unit 31 is connected with the first input transmission set 101, and the eighth connecting unit 32 is connected with the second input transmission set 201, for realizing the transmission connection and separation of the first input transmission set 101 and the second input transmission set 201.

[0104] In the embodiment of the present application, by setting the first disconnecting mechanism 30 to comprise the seventh connecting unit 31 and the eighth connecting unit 32, the seventh connecting unit 31 is connected with the first input transmission set 101, and the eighth connecting unit 32 is connected with the second input transmission set 201, so that the power of the first motor 40 can not only be transmitted to the output end through the first input transmission set 101 and the first output transmission set 102, but also be transmitted to the second input transmission set 201 through the first input transmission set 101, and then be transmitted to the output end 60 by the second output transmission set 202. Similarly, the second motor 50 can not only drive the second input transmission set 201, but also drive the first input transmission set 101. In this way, by cooperation of the first motor 40, the second motor 50 and the first disconnecting mechanism 30, various different driving modes can be realized to meet different power performance requirements of the vehicle.

[0105] Specifically, as shown in the figure, Figure 4 The first transmission mechanism 10 comprises a first input shaft 14, and the second transmission mechanism 20 comprises a second input shaft 24; the first input shaft 14 is connected with the output end 60 of the first motor 40, the first input transmission set 101 is in transmission connection with the first input shaft 14, the second input shaft 24 is connected with the output end 60 of the second motor 50, the second input transmission set 201 is in transmission connection with the second input shaft 24, the seventh connecting unit 31 is connected with the first input shaft 14, and the eighth connecting unit 32 is connected with the second input shaft 24.

[0106] Further, when the seventh connecting unit 31 and the eighth connecting unit 32 are engaged, the two input shafts are in transmission connection, and the power of the first motor 40 can be transmitted to the second input shaft 24 via the first input shaft 14, so that not only various driving modes can be realized, but also the transmission path is short and the structure is simple.

[0107] In some embodiments, as shown in the figure, Figure 5As shown, the seventh connecting unit 31 is connected with the first output transmission group 102, and the eighth connecting unit 32 is connected with the second output transmission group 202, so as to realize the transmission connection and separation of the first output transmission group 102 and the second output transmission group 202.

[0108] Further, as shown in the drawings, Figure 5 The output end 60 includes a first output shaft 61 and a second output shaft 62; the first output shaft 61 is connected with the first output transmission group 102, and the second output shaft 62 is connected with the second output transmission group 202; the seventh connecting unit 31 is connected with the first output shaft 61, and the eighth connecting unit 32 is connected with the second output shaft 62.

[0109] In the embodiments of the present application, by arranging the first input shaft 14, the second input shaft 24, the first output shaft 61 and the second output shaft 62, the connection between the first motor 40 and the first input transmission group 101 and the connection between the second motor 50 and the second input transmission group can be more flexible, which not only facilitates installation and maintenance, but also optimizes the internal space layout of the vehicle.

[0110] In some embodiments, as shown in the drawings, Figure 6 The output end 60 includes a first output end 60 and a second output end 60; the first output end 60 includes a first intermediate shaft 15, a first gear set and a first output shaft 61, the first intermediate shaft 15 is connected with the first output transmission group 102, and the first gear set is connected with the first intermediate shaft 15 and the first output shaft 61 respectively; the second output end 60 includes a second intermediate shaft 25, a second gear set and a second output shaft 62, the second intermediate shaft 25 is connected with the second output transmission group 202, and the second gear set is connected with the second intermediate shaft 25 and the second output shaft 62 respectively; the first disconnecting mechanism 30 is arranged between the first intermediate shaft 15 and the second intermediate shaft 25, and the first disconnecting mechanism 30 is in transmission connection with the first intermediate shaft 15 and the second intermediate shaft 25 respectively, so as to realize the transmission connection and separation between the first output transmission group 102 and the second output transmission group 202. Specifically, the first gear set includes a fifth gear 16 and a sixth gear 17, and the second gear set includes an eleventh gear 26 and a twelfth gear 27.

[0111] In some embodiments, as shown in the drawings, Figure 7 The first disconnecting mechanism 30 is arranged between the first output shaft 61 and the second output shaft 62, and the first disconnecting mechanism 30 is in transmission connection with the first output shaft 61 and the second output shaft 62 respectively, so as to realize the transmission connection and separation between the first output transmission group 102 and the second output transmission group 202.

[0112] In the embodiments of the present application, by arranging the first output shaft 61 and the second output shaft 62, and arranging the first disconnect mechanism 30 to be in driving connection with the first output shaft 61 and the second output shaft 62 respectively, not only the driving connection and disconnection between the first output transmission group 102 and the second output transmission group 202 can be achieved, but also the connection between the first output transmission group 102, the second output transmission group 202 and the output end can be more flexible, and the internal space layout of the vehicle can be optimized.

[0113] In some embodiments, as shown in Figure 8 The first disconnect mechanism 30 is arranged between the first input shaft 14 and the second input shaft 24, and is in driving connection with the first input shaft 14 and the second input shaft 24 respectively, so as to realize the driving connection and disconnection between the first input transmission group 101 and the second input transmission group 201.

[0114] In the embodiments of the present application, by arranging the first disconnect mechanism 30 between the first input shaft 14 and the second input shaft 24, the power of the first motor 40 can be transmitted to the second output shaft 62 through the first input transmission group 101, the first disconnect mechanism 30 and the second output transmission group 202, and the power of the second motor 50 can be transmitted to the first output shaft 61 through the second input transmission group 201, the first disconnect mechanism 30 and the first output transmission group 102, so as to realize various driving modes of the vehicle.

[0115] The specific transmission paths in the above embodiments can refer to the foregoing embodiments, and will not be described again. It can be understood that the above five embodiments are different structural diagrams of the transmission system provided by the present application, and all of them can realize 16 driving modes of the vehicle to meet the power performance requirements under different road conditions.

[0116] Optionally, the present application also provides a vehicle comprising the transmission system described in the above embodiments.

[0117] In the embodiment of the present application, the first motor 40, the second motor 50, the first disconnecting mechanism 30, the first transmission mechanism 10, the second transmission mechanism 20 and the output end 60 are arranged in the transmission system, the first motor 40 is connected with the first transmission mechanism 10, the second motor 50 is connected with the second transmission mechanism 20, the first transmission mechanism 10 and the second transmission mechanism 20 are respectively in transmission connection with the output end 60, and the first disconnecting mechanism 30 is arranged between the first transmission mechanism 10 and the second transmission mechanism 20. Further, when the first disconnecting mechanism 30 is disconnected, the first transmission mechanism 10 and the second transmission mechanism 20 are separated, at this time, independent driving modes can be respectively realized by the first motor 40 and the second motor 50; when the first disconnecting mechanism 30 is connected, the first transmission mechanism 10 and the second transmission mechanism 20 are in transmission connection, at this time, the driving force of the first motor 40 can be conducted to the second transmission mechanism 20 via the first transmission mechanism 10, and the driving force of the second motor 50 can be conducted to the first transmission mechanism 10 via the second transmission mechanism 20, so that different driving modes such as double-motor superposition driving or double-motor parallel driving can be realized. Therefore, by using the transmission system of the present application, different driving modes can be realized by cooperation of the double motors and the first disconnecting mechanism, so as to meet different driving requirements of the vehicle, thereby improving the performance of the vehicle.

[0118] In the present application, multiple refers to two or more than two.

[0119] In the present application, unless otherwise explicitly limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0120] The terms "first", "second", "third", "fourth" and the like (if any) in the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0121] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0122] If not otherwise specified, all steps of the application can be performed in any order. For example, the method comprises steps A and B, meaning that the method can comprise steps A and B performed in sequence, or steps B and A performed in sequence. For example, the method can further comprise step C, meaning that step C can be added to the method in any order, for example, the method can comprise steps A, B and C, or steps A, C and B, or steps C, A and B, etc.

[0123] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transmission system characterized by, The utility model relates to a kind of transmission mechanism, including: First motor (40), second motor (50), first disconnecting mechanism (30), first transmission mechanism (10), second transmission mechanism (20) and output end (60); The first transmission mechanism (10) is in driving connection with the first motor (40), and the second transmission mechanism (20) is in driving connection with the second motor (50);The first disconnecting mechanism (30) is arranged between the first transmission mechanism (10) and the second transmission mechanism (20), and the first disconnecting mechanism (30) is in driving connection with the first transmission mechanism (10), the second transmission mechanism (20) respectively, for realizing the driving connection and separation of the first transmission mechanism (10) and the second transmission mechanism (20); The first transmission mechanism (10) and the second transmission mechanism (20) are in driving connection with the output end (60) respectively.

2. The transmission system of claim 1, wherein, The first transmission mechanism (10) includes first transmission assembly (11), second transmission assembly (12) and second disconnecting mechanism (13), and the second disconnecting mechanism (13) is a bidirectional disconnecting mechanism; The second disconnecting mechanism (13) is in driving connection with the first transmission assembly (11), the second transmission assembly (12) and the first motor (40) respectively, and the second disconnecting mechanism (13) is used for realizing the driving connection and separation of the first motor (40) and the first transmission assembly (11), or the driving connection and separation of the first motor (40) and the second transmission assembly (12); At least one of the first transmission assembly (11) and the second transmission assembly (12) is in driving connection with the first disconnecting mechanism (30);The output end (60) includes first output shaft (61), and the first transmission assembly (11) and the second transmission assembly (12) are in driving connection with the first output shaft (61) respectively, and the transmission ratio of the first transmission assembly (11) and the second transmission assembly (12) is not equal.

3. The transmission system of claim 2, wherein, The second disconnecting mechanism (13) includes first connecting unit (131), second connecting unit (132) and third connecting unit (133); The first connecting unit (131) is connected with the output end of the first motor (40), the second connecting unit (132) is connected with the first transmission assembly (11), and the third connecting unit (133) is connected with the second transmission assembly (12);The first connecting unit (131) is movably arranged between the second connecting unit (132) and the third connecting unit (133), for realizing the engagement and separation of the first connecting unit (131) and the second connecting unit (132), or the engagement and separation of the first connecting unit (131) and the third connecting unit (133).

4. The transmission system of claim 3, wherein, The first transmission mechanism (10) further includes first input shaft (14); The first transmission assembly (11) comprises a first gear (111) and a second gear (112), the first input shaft (14) is connected to the output shaft of the first motor (40), the first gear (111) is sleeved on the first input shaft (14) and connected with the second connecting unit (132); the second gear (112) is in transmission connection with the first output shaft (61), and the first gear (111) is in meshing connection with the second gear (112). And / or, the second transmission assembly (12) comprises a third gear (121) and a fourth gear (122), the third gear (121) is sleeved on the first input shaft (14) and connected with the third connecting unit (133); the fourth gear (122) is in transmission connection with the first output shaft (61), and the third gear (121) is in meshing connection with the fourth gear (122).

5. The transmission system of claim 4, wherein, The first transmission mechanism (10) further comprises a first intermediate shaft (15), a fifth gear (16) and a sixth gear (17), the second gear (112) and / or the fourth gear (122) are connected with the first intermediate shaft (15), the fifth gear (16) is connected with the first intermediate shaft (15), the sixth gear (17) is connected with the first output shaft (61), and the fifth gear (16) is in meshing connection with the sixth gear (17).

6. The transmission system of claim 1, wherein, The second transmission mechanism (20) comprises a third transmission assembly (21), a fourth transmission assembly (22) and a third disconnecting mechanism (23), the third disconnecting mechanism (23) is a bidirectional disconnecting mechanism; The third disconnecting mechanism (23) is in transmission connection with the third transmission assembly (21), the fourth transmission assembly (22) and the second motor (50) respectively, and is used for realizing transmission connection and separation of the second motor (50) and the third transmission assembly (21), or transmission connection and separation of the second motor (50) and the fourth transmission assembly (22); At least one of the third transmission assembly (21) and the fourth transmission assembly (22) is in transmission connection with the first disconnecting mechanism (30); the output end (60) further comprises a second output shaft (62), the third transmission assembly (21) and the fourth transmission assembly (22) are respectively in transmission connection with the second output shaft (62), and transmission ratios of the third transmission assembly (21) and the fourth transmission assembly (22) are not equal.

7. The transmission system of claim 6, wherein, The third disconnecting mechanism (23) comprises a fourth connecting unit (231), a fifth connecting unit (232) and a sixth connecting unit (233); The fourth connecting unit (231) is connected with the second motor (50), the fifth connecting unit (232) is connected with the third transmission assembly (21), and the sixth connecting unit (233) is connected with the fourth transmission assembly (22); the fourth connecting unit (231) is movably arranged between the fifth connecting unit (232) and the sixth connecting unit (233), and is used for realizing the engagement and separation of the fourth connecting unit (231) and the fifth connecting unit (232), or the engagement and separation of the fourth connecting unit (231) and the sixth connecting unit (233).

8. The transmission system of claim 7, wherein, The second transmission mechanism (20) further comprises a second input shaft (24); The third transmission assembly (21) comprises a seventh gear (211) and an eighth gear (212), the second input shaft (24) is connected to the output shaft of the second motor (50), the seventh gear (211) is sleeved on the second input shaft (24) and connected with the fifth connecting unit (232); the eighth gear (212) is in transmission connection with the second output shaft (62), and the seventh gear (211) is in meshing connection with the eighth gear (212). And / or, the fourth transmission assembly (22) comprises a ninth gear (221) and a tenth gear (222), the ninth gear (221) is sleeved on the second input shaft (24) and connected with the sixth connecting unit (233); the tenth gear (222) is in transmission connection with the second output shaft (62), and the ninth gear (221) is in meshing connection with the tenth gear (222).

9. The transmission system of claim 8, wherein, The second transmission mechanism (20) further comprises a second intermediate shaft (25), an eleventh gear (26) and a twelfth gear (27), the eighth gear (212) and / or the tenth gear (222) is connected with the second intermediate shaft (25), the eleventh gear (26) is connected to the second intermediate shaft (25), the twelfth gear (27) is connected to the second output shaft (62), and the eleventh gear (26) is in meshing connection with the twelfth gear (27).

10. A transmission system according to any one of claims 1 to 9, characterised in that, The first transmission mechanism (10) comprises a first input transmission group (101) and a first output transmission group (102), the first input transmission group (101) is in transmission connection with the first motor (40), and the first output transmission group (102) is connected with the output end (60); The second transmission mechanism (20) comprises a second input transmission group (201) and a second output transmission group (202), the second input transmission group (201) is connected with the second motor (50), and the second output transmission group (202) is connected with the output end (60); The second transmission mechanism (20) comprises a second input transmission group (201) and a second output transmission group (202), the second input transmission group (201) is connected with the second motor (50), and the second output transmission group (202) is connected with the output end (60); The first disconnecting mechanism (30) comprises a seventh connecting unit (31) and an eighth connecting unit (32), the seventh connecting unit (31) is connected with the first input transmission group (101), the eighth connecting unit (32) is connected with the second input transmission group (201), for realizing the transmission connection and separation of the first input transmission group (101) and the second input transmission group (201); Or, the seventh connecting unit (31) is connected with the first output transmission group (102), the eighth connecting unit (32) is connected with the second output transmission group (202), for realizing the transmission connection and separation of the first output transmission group (102) and the second output transmission group (202).

11. The transmission system of claim 10, wherein, The first transmission mechanism (10) comprises a first input shaft (14), the second transmission mechanism (20) comprises a second input shaft (24); the first input shaft (14) is connected to the output end of the first motor (40), the first input transmission group (101) is in transmission connection with the first input shaft (14), the second input shaft (24) is connected to the output end of the second motor (50), the second input transmission group (201) is in transmission connection with the second input shaft (24), the seventh connecting unit (31) is connected with the first input shaft (14), and the eighth connecting unit (32) is connected with the second input shaft (24); Or, the output end comprises a first output shaft (61) and a second output shaft (62); the first output shaft (61) is connected to the first output transmission group (102), the second output shaft (62) is connected to the second output transmission group (202), the seventh connecting unit (31) is connected with the first output shaft (61), and the eighth connecting unit (32) is connected with the second output shaft (62).

12. The transmission system of claim 10, wherein, The output end (60) comprises a first output end and a second output end; The first output end comprises a first intermediate shaft (15), a first gear set and a first output shaft (61), the first intermediate shaft (15) is connected to the first output transmission group (102), the first gear set is connected with the first intermediate shaft (15) and the first output shaft (61) respectively; The second output end comprises a second intermediate shaft (25), a second gear set and a second output shaft (62), the second intermediate shaft (25) is connected to the second output transmission group (202), the second gear set is connected with the second intermediate shaft (25) and the second output shaft (62) respectively; The first disconnecting mechanism (30) is arranged between the first intermediate shaft (15) and the second intermediate shaft (25), and the first disconnecting mechanism (30) is in transmission connection with the first intermediate shaft (15) and the second intermediate shaft (25) respectively, for realizing the transmission connection and separation between the first output transmission group (102) and the second output transmission group (202); Or, the first disconnect mechanism (30) is arranged between the first output shaft (61) and the second output shaft (62), and the first disconnect mechanism (30) is in driving connection with the first output shaft (61) and the second output shaft (62) respectively, for realizing the driving connection and separation between the first output transmission group (102) and the second output transmission group (202).

13. A vehicle characterized by comprising: A transmission system comprising a transmission system according to any one of claims 1-12. A transmission system comprising a transmission system according to any one of claims 1-12.

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