CN114148152B - Double-motor mechanical coupling electric drive bridge and vehicle - Google Patents
Double-motor mechanical coupling electric drive bridge and vehicle Download PDFInfo
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- CN114148152B CN114148152B CN202111208128.3A CN202111208128A CN114148152B CN 114148152 B CN114148152 B CN 114148152B CN 202111208128 A CN202111208128 A CN 202111208128A CN 114148152 B CN114148152 B CN 114148152B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
The invention discloses a double-motor mechanical coupling electric drive axle and a vehicle, and relates to the technical field of axles. The double-motor mechanical coupling electric drive bridge comprises a first motor, a first planetary reducer, a second motor, a second planetary reducer and a reverse transmission mechanism. The first motor is connected with a first sun gear of the first planetary reducer, the second motor is connected with a second sun gear of the second planetary reducer, and a first planet carrier of the first planetary reducer and a second planet carrier of the second planetary reducer are coaxially arranged and are respectively used for outputting torque input by the first motor and torque input by the second motor. And a first gear ring of the first planetary reducer is in reverse transmission connection with the second planetary reducer through a reverse transmission mechanism. The double-motor mechanical coupling electric drive bridge and the vehicle have the advantages of being low in cost and high in reliability.
Description
Technical Field
The invention relates to the technical field of axles, in particular to a double-motor mechanical coupling electric drive axle and a vehicle.
Background
The axle is used as a mechanism for bearing the load of the automobile and maintaining the normal running of the automobile on a road, and the power stable output of the axle is important. The existing electric drive axle generally adopts an electronic control mode to control the power output of two motors when the two motors are matched with the conditions of automobile steering and the like, and has higher cost and poorer stability.
In view of the above, it is important to develop a dual-electromechanical-coupling electrically driven bridge and a vehicle that can solve the above technical problems.
Disclosure of Invention
The invention aims to provide a double-motor mechanical coupling electric drive axle and a vehicle, which have the characteristics of lower cost and higher reliability.
The invention provides a technical scheme that:
in a first aspect, an embodiment of the present invention provides a dual-motor mechanical coupling electric drive bridge, which includes a first motor, a first planetary reducer, a second motor, a second planetary reducer, and a reverse transmission mechanism;
the first motor is connected with a first sun gear of the first planetary reducer, the second motor is connected with a second sun gear of the second planetary reducer, and a first planet carrier of the first planetary reducer and a second planet carrier of the second planetary reducer are coaxially arranged and are respectively used for outputting torque input by the first motor and torque input by the second motor;
and the first gear ring of the first planetary speed reducer is in reverse transmission connection with the second planetary speed reducer through the reverse transmission mechanism.
With reference to the first aspect, in another implementation manner of the first aspect, the first ring gear is in reverse transmission connection with the second ring gear of the second planetary reducer through the reverse transmission mechanism.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first motor is disposed on a side of the first planetary reducer, which is far away from the second planetary reducer, and the second motor is disposed on a side of the second planetary reducer, which is far away from the first planetary reducer.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first motor, the first planetary reducer, the second planetary reducer, and the second motor are coaxially disposed.
With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the dual-motor mechanically-coupled electrically-driven bridge further includes a transmission shaft, and the transmission shaft is located between the first planet carrier and the second planet carrier and is respectively connected with the first planet carrier and the second planet carrier to output torque through the transmission shaft.
With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the two-motor mechanically-coupled electrically-driven axle further comprises a differential, a first half shaft and a second half shaft, wherein the differential is connected with the transmission shaft and is in transmission with the first half shaft and the second half shaft so as to transmit the torque input by the first planet carrier and the second planet carrier to the first half shaft and/or the second half shaft.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the differential and the reverse transmission mechanism are arranged at an interval, and the first planet carrier is located between the differential and the reverse transmission mechanism.
With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the dual-motor mechanically-coupled electrically-driven axle further comprises a shift mechanism, and the shift mechanism is in transmission connection with the transmission shaft and the differential to be in transmission connection with the differential and the transmission shaft.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the shift mechanism includes a first driving gear, a second driving gear, a first driven gear, a second driven gear, and a shift sleeve;
the first driving gear and the second driving gear are arranged on the transmission shaft; the first driven gear and the second driven gear are in transmission connection with the first driving gear and the second driving gear respectively;
the gear shifting meshing sleeve is movably arranged, is in transmission connection with the differential mechanism, can slide along the axial direction of the gear shifting meshing sleeve, and is meshed with the first driven gear or the second driven gear, so that the differential mechanism is in transmission connection with the first driven gear, or the differential mechanism is in transmission connection with the second driven gear.
In a second aspect, embodiments of the present invention further provide a vehicle, which includes the dual electromechanical coupling electric drive bridge. The double-motor mechanical coupling electric drive bridge comprises a first motor, a first planetary reducer, a second motor, a second planetary reducer and a reverse transmission mechanism; the first motor is connected with a first sun gear of the first planetary reducer, the second motor is connected with a second sun gear of the second planetary reducer, and a first planet carrier of the first planetary reducer and a second planet carrier of the second planetary reducer are coaxially arranged and are respectively used for outputting torque input by the first motor and torque input by the second motor; and the first gear ring of the first planetary reducer is in reverse transmission connection with the second planetary reducer through the reverse transmission mechanism.
Compared with the prior art, the double-motor mechanical coupling electric drive bridge provided by the embodiment of the invention has the beneficial effects that:
the double-motor mechanical coupling electric drive bridge comprises a first motor, a first planetary reducer, a second motor, a second planetary reducer and a reverse transmission mechanism, wherein the first motor is connected with a first sun gear of the first planetary reducer, the second motor is connected with a second sun gear of the second planetary reducer, a first planet carrier of the first planetary reducer and a second planet carrier of the second planetary reducer are coaxially arranged, the first planet carrier and the second planet carrier are respectively used for outputting torque input by the first motor and torque input by the second motor, in other words, in the first planetary reducer, power is input through the first sun gear and is output through the first planet carrier, a first gear ring of the first planetary reducer is in a floating state, the first gear ring of the first planetary reducer is in reverse transmission connection with the second planetary reducer through the reverse transmission mechanism, and therefore when the torque output by the first motor is larger than the torque output by the second motor, the first motor drives the first gear ring to reversely rotate, the first gear ring is in reverse transmission connection with the second planetary reducer through the reverse transmission mechanism, and the first motor is enabled to be in reverse transmission, and the purpose of mechanical coupling of the first motor and the second planetary reducer is achieved.
The beneficial effects of the vehicle provided by the embodiment of the invention compared with the prior art are the same as the beneficial effects of the double-motor mechanical coupling electric drive bridge compared with the prior art, and are not described again.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of a dual-electromechanical mechanically coupled electrically driven bridge according to an embodiment of the present invention.
An icon: 80-a wheel; 10-a double-motor mechanical coupling electric drive bridge; 11-first planetary reducer; 111-a first sun gear; 112-a first planet carrier; 113-a first ring gear; 12-a second planetary reducer; 121-a second sun gear; 122-a second planet carrier; 123-a second gear ring; 13-a reverse drive mechanism; 14-a drive shaft; 15-a differential; 151-first half shaft; 152-a second half shaft; 16-a first motor; 17-a second electric machine; 18-a gear shift mechanism; 181-a first drive gear; 182-a second drive gear; 186-a first driven gear; 187-a second driven gear; 188-a gear shifting sleeve; 19-hub reduction gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like, refer to an orientation or positional relationship as shown in the drawings, or as would be conventionally found in use of the inventive product, or as would be conventionally understood by one skilled in the art, and are used merely to facilitate the description and simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a dual electromechanical coupling electric bridge 10 according to an embodiment of the present invention.
The embodiment of the invention provides a dual-motor mechanical coupling electric-driven bridge 10, and the dual-motor mechanical coupling electric-driven bridge 10 has the characteristics of low cost and high reliability. The dual-motor mechanical coupling electric drive bridge 10 can be applied to vehicles such as automobiles and trucks. When the dual-electromechanical coupling electric drive axle 10 is applied to a vehicle, the wheel 80 of the vehicle is connected to the dual-electromechanical coupling electric drive axle 10, so that the wheel 80 is driven to rotate by the dual-electromechanical coupling electric drive axle 10, thereby maintaining the driving state of the vehicle. Because the vehicle adopts the double-motor mechanical coupling electric drive bridge 10 provided by the embodiment of the invention, the vehicle also has the characteristics of lower cost and higher reliability.
The structural composition, the operation principle and the advantageous effects of the dual-electromechanical mechanically coupled electrically driven bridge 10 according to the embodiment of the present invention will be described in detail below.
With continued reference to fig. 1, the dual-motor mechanically-coupled electric drive bridge 10 includes a first motor 16, a first planetary reducer 11, a second motor 17, a second planetary reducer 12 and a reverse transmission mechanism 13, wherein the first motor 16 is connected to a first sun gear 111 of the first planetary reducer 11, the second motor 17 is connected to a second sun gear 121 of the second planetary reducer 12, and a first carrier 112 of the first planetary reducer 11 is coaxially disposed with a second carrier 122 of the second planetary reducer 12, and the first carrier 112 and the second carrier 122 are respectively used for outputting torque input by the first motor 16 and torque input by the second motor 17, in other words, in the first planetary reducer 11, power is input through the first sun gear 111 and output through the first carrier 112, the first ring gear 113 of the first planetary reducer 11 is in a floating state, and the first ring gear 113 of the first planetary reducer 11 is in a reverse transmission connection with the second planetary reducer 12 through the reverse transmission mechanism 13, and when the torque output by the first motor 16 is greater than the torque output by the first motor 17, the first planetary reducer 16 is reversely coupled to the first ring gear 113, so that the first motor 16 and the reverse transmission mechanism 13 is connected, and the reverse transmission mechanism 13 is implemented, and the reverse transmission mechanism is implemented, so that the reverse transmission mechanism is implemented.
Further, the first ring gear 113 is in reverse drive connection with the second ring gear 123 of the second planetary reducer 12 through the reverse drive mechanism 13. In the second planetary gear set 12, power is input through the second sun gear 121 and output through the second carrier 122, the second ring gear 123 of the second planetary gear set 12 is also in a floating state, and the first ring gear 113 of the first planetary gear set 11 is in reverse drive connection with the second ring gear 123 of the second planetary gear set 12 through the reverse drive mechanism 13, so that when the torque output by the first motor 16 differs from the torque output by the second motor 17, the first ring gear 113, the reverse drive mechanism 13, and the second ring gear 123 can transmit and output part of the power output by the first motor 16 to the second planetary gear set 12, and the second ring gear 123, the reverse drive mechanism 13, and the first ring gear 113 can also transmit and output part of the power output by the second motor 17 to the first planetary gear set 11, thereby realizing the power coupling of the double motors.
For example, when the torque output by the first electric machine 16 is different from the torque output by the second electric machine 17, if the torque output by the first electric machine 16 is greater than the torque output by the second electric machine 17, the first electric machine 16 will drive the first ring gear 113 to rotate in the reverse direction, and the first ring gear 113 is in reverse transmission connection with the second ring gear 123 through the reverse transmission mechanism 13, so that the second ring gear 123 rotates in the forward direction, and thus part of the power transmitted by the first electric machine 16 is output through the second planetary reducer 12; if the torque output by the second motor 17 is greater than the torque output by the first motor 16, the second motor 17 drives the second gear ring 123 to rotate reversely, and the second gear ring 123 is in reverse transmission connection with the first gear ring 113 through the reverse transmission mechanism 13, so that the first gear ring 113 rotates normally, and part of the power transmitted by the second motor 17 is output through the first planetary reducer 11; and when the torque output by the first motor 16 is the same as the torque output by the second motor 17, the first gear 113 and the second gear 123 are kept stationary due to the reverse drive connection of the first gear 113 and the second gear 123 through the reverse drive mechanism 13. The power output of the first motor 16 through the first planetary reducer 11 and the power output of the second motor 17 through the second planetary reducer 12 are not influenced.
It should be noted that the reverse transmission mechanism 13 may be a transmission mechanism such as a gear box, for example, the reverse transmission mechanism 13 may include a first transmission rod and a second transmission rod (not shown), wherein one end of the first transmission rod is externally engaged with the first gear ring 113, the other end of the first transmission rod is externally engaged with one end of the second transmission rod, and the other end of the second transmission rod is externally engaged with the second gear ring 123, so as to achieve the purpose of connecting the first gear ring 113 and the second gear ring 123 in a reverse transmission manner. The structure is simple, and the design and assembly are convenient.
With continued reference to fig. 1, the first electric machine 16 is disposed on a side of the first planetary gear reducer 11 away from the second planetary gear reducer 12, and the second electric machine 17 is disposed on a side of the second planetary gear reducer 12 away from the first planetary gear reducer 11. In other words, the first planetary reducer 11 and the second planetary reducer 12 are disposed between the first motor 16 and the second motor 17, or the first motor 16, the first planetary reducer 11, the second planetary reducer 12 and the second motor 17 are sequentially disposed, which has a simple structure, and the appearance of the dual electromechanical coupling electric drive bridge 10 is not obviously raised, thereby facilitating the design.
In the present embodiment, the arrangement of the first motor 16 and the first planetary reduction gear 11 is symmetrical to the arrangement of the second motor 17 and the second planetary reduction gear 12.
Further, the first electric machine 16, the first planetary reducer 11, the second planetary reducer 12 and the second electric machine 17 are coaxially arranged to improve the compactness of the dual-electromechanical coupling electric drive bridge 10.
With continued reference to fig. 1, the two-motor-mechanical-coupling electric drive bridge 10 may further include a transmission shaft 14, wherein the transmission shaft 14 is located between the first planet carrier 112 and the second planet carrier 122 and is respectively connected to the first planet carrier 112 and the second planet carrier 122 to output torque through the transmission shaft 14, in other words, the transmission shaft 14 connects the first planet carrier 112 and the second planet carrier 122 together, so that the power output by the first electric motor 16 and the power output by the second electric motor 17 are both output through the transmission shaft 14 to output torque more stably.
Further, the two-electromechanical coupling electrically-driven axle 10 may further include a differential 15, a first half shaft 151 and a second half shaft 152, wherein the differential 15 is connected to the transmission shaft 14 and is in transmission with the first half shaft 151 and the second half shaft 152 to transmit the torque input by the first planet carrier 112 and the second planet carrier 122 to the first half shaft 151 and/or the second half shaft 152, so as to drive the corresponding wheel 80 to rotate through the first half shaft 151 and the second half shaft 152, thereby achieving the purpose of differential speed and improving the versatility of the two-electromechanical coupling electrically-driven axle 10.
It should be noted that, in the present embodiment, the first half shaft 151 and the second half shaft 152 are arranged in parallel with the first ring gear 113, in other words, the first half shaft 151 and the second half shaft 152 are arranged in parallel with the first electric machine 16, the first planetary gear reducer 11, the second planetary gear reducer 12 and the second electric machine 17, so as to design an axle housing of the two-motor mechanically-coupled electric drive axle 10.
Moreover, the differential 15 and the reverse transmission mechanism 13 may be disposed at an interval, and the first planet carrier 112 is located between the differential 15 and the reverse transmission mechanism 13, in other words, the differential 15 and the reverse transmission mechanism 13 are respectively disposed at the front and rear sides of the first planetary reducer 11 and the second planetary reducer 12, so as to reduce the thickness of the dual electromechanical coupling electric drive axle 10 and improve the adaptability thereof.
Further, the two-motor mechanically coupled electric drive axle 10 may further include a shift mechanism 18, and the shift mechanism 18 is in driving connection with the drive shaft 14 and the differential 15 to drive the differential 15 and the drive shaft 14, so as to improve the versatility of the two-motor mechanically coupled electric drive axle 10.
In the present embodiment, the shift mechanism 18 includes a first driving gear 181, a second driving gear 182, a first driven gear 186, a second driven gear 187, and a shift sleeve 188. The first driving gear 181 and the second driving gear 182 are disposed on the transmission shaft 14, and the first driven gear 186 and the second driven gear 187 are respectively connected to the first driving gear 181 and the second driving gear 182 in a transmission manner. And a shift sleeve 188 is movably disposed, and the shift sleeve 188 is drivingly connected to the differential 15 and is capable of sliding in its own axial direction so as to mesh with the first driven gear 186 to drivingly connect the differential 15 and the first driven gear 186, and the shift sleeve 188 is also slidable in its own axial direction so as to be switched into meshing with the second driven gear 187 to drivingly connect the differential 15 and the second driven gear 187. The gear shifting device is simple in structure and low in cost. Of course, in other embodiments, the shift mechanism 18 can have other shifting configurations.
In addition, in the present embodiment, the two electromechanical coupling electric drive axle 10 may further include two wheel reduction gears 19, and the two wheel reduction gears 19 are respectively disposed at the end of the first half shaft 151 and the end of the second half shaft 152 to be connected to the wheels 80 through the wheel reduction gears 19. Of course, in other embodiments, a speed reducer or the like may be provided at a position such as between the differential 15 and the propeller shaft 14.
The working principle of the double-motor mechanical coupling electric drive bridge 10 provided by the embodiment of the invention is as follows:
the dual electromechanical coupling electric drive bridge 10 comprises a first electric motor 16, a first planetary reducer 11, a second electric motor 17, a second planetary reducer 12 and a reverse transmission mechanism 13, wherein the first electric motor 16 is connected with a first sun gear 111 of the first planetary reducer 11, the second electric motor 17 is connected with a second sun gear 121 of the second planetary reducer 12, a first planet carrier 112 of the first planetary reducer 11 and a second planet carrier 122 of the second planetary reducer 12 are coaxially arranged, the first planet carrier 112 and the second planet carrier 122 are respectively used for outputting torque input by the first electric motor 16 and torque input by the second electric motor 17, in other words, in the first planetary reducer 11, power is input through the first sun gear 111 and output through the first planet carrier 112, the first ring gear 113 of the first planetary reducer 11 is in a floating state, the first ring gear 113 of the first planetary reducer 11 is in reverse transmission connection with the second planetary reducer 12 through the reverse transmission mechanism 13, and when the torque output by the first electric motor 16 is greater than the torque output by the second electric motor 17, the first ring gear 113 is in reverse transmission mechanism 13, so that the first electric motor 16 and the reverse transmission mechanism 13 are mechanically coupled with the first electric motor 16, thereby realizing the reverse transmission, and the reverse transmission mechanism 13, and realizing the reverse transmission, and realizing the purpose of the reverse transmission, and realizing the reverse transmission mechanism 13.
In summary, the embodiment of the present invention provides a dual-motor mechanically-coupled electrically-driven bridge 10, which has the characteristics of low cost and high reliability.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that the features in the above embodiments may be combined with each other and the present invention may be variously modified and changed without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A double-motor mechanical coupling electric drive bridge is characterized by comprising a first motor (16), a first planetary reducer (11), a second motor (17), a second planetary reducer (12), a reverse transmission mechanism (13) and a transmission shaft (14);
the first motor (16) is connected with a first sun gear (111) of the first planetary reducer (11), the second motor (17) is connected with a second sun gear (121) of the second planetary reducer (12), a first planet carrier (112) of the first planetary reducer (11) is coaxially arranged with a second planet carrier (122) of the second planetary reducer (12), and the transmission shaft (14) is located between the first planet carrier (112) and the second planet carrier (122) and is respectively connected with the first planet carrier (112) and the second planet carrier (122) to output the torque input by the first motor (16) and the torque input by the second motor (17);
the first gear ring (113) of the first planetary reducer (11) is in reverse transmission connection with the second planetary reducer (12) through the reverse transmission mechanism (13).
2. The dual electromechanical mechanically coupled electrical transaxle of claim 1 wherein the first ring gear (113) is in back-driving connection with the second ring gear (123) of the second planetary gear set (12) via the back-drive mechanism (13).
3. Double electromechanical coupling electric drive bridge according to claim 1, characterized in that the first electric machine (16) is arranged on the side of the first planetary reduction gear (11) remote from the second planetary reduction gear (12), and the second electric machine (17) is arranged on the side of the second planetary reduction gear (12) remote from the first planetary reduction gear (11).
4. The dual-electromechanical-mechanically-coupled electrically-driven bridge according to claim 3, characterized in that the first electric machine (16), the first planetary reducer (11), the second planetary reducer (12) and the second electric machine (17) are coaxially arranged.
5. The dual electromechanical mechanically coupled electrically driven axle according to claim 1, further comprising a differential (15), a first half-axle (151) and a second half-axle (152), said differential (15) being connected with said drive shaft (14) and being in transmission with said first half-axle (151) and said second half-axle (152) for transferring the torque input by said first planet carrier (112) and said second planet carrier (122) to said first half-axle (151) and/or second half-axle (152).
6. Double electromechanical mechanically coupled electric drive axle according to claim 5, characterized in that the differential (15) and the counter drive (13) are spaced apart, the first planet carrier (112) being located between the differential (15) and the counter drive (13).
7. The dual electromechanical coupling electric drive axle according to claim 5, characterized in that it further comprises a gear shift mechanism (18), said gear shift mechanism (18) being in driving connection with said drive shaft (14) and said differential (15) for driving connection of said differential (15) and said drive shaft (14).
8. The dual electromechanical coupling electric drive axle according to claim 7, characterized in that the gear shift mechanism (18) comprises a first driving gear (181), a second driving gear (182), a first driven gear (186), a second driven gear (187) and a gear shift sleeve (188);
the first driving gear (181) and the second driving gear (182) are arranged on the transmission shaft (14); the first driven gear (186) and the second driven gear (187) are in transmission connection with the first driving gear (181) and the second driving gear (182), respectively;
the gear shifting engaging sleeve (188) is movably arranged, is connected with the differential mechanism (15) in a transmission mode, can slide along the axial direction of the gear shifting engaging sleeve to be engaged with the first driven gear (186) or the second driven gear (187), and accordingly is connected with the differential mechanism (15) and the first driven gear (186) in a transmission mode or is connected with the differential mechanism (15) and the second driven gear (187) in a transmission mode.
9. A vehicle comprising a two-motor mechanically coupled electric drive bridge according to any one of claims 1 to 8.
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| CN202111208128.3A CN114148152B (en) | 2021-10-18 | 2021-10-18 | Double-motor mechanical coupling electric drive bridge and vehicle |
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| CN202111208128.3A CN114148152B (en) | 2021-10-18 | 2021-10-18 | Double-motor mechanical coupling electric drive bridge and vehicle |
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| CN114148152B true CN114148152B (en) | 2022-10-04 |
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|---|---|---|---|---|
| IT1023073B (en) * | 1974-01-23 | 1978-05-10 | Hurth Masch Zahnrad Carl | MOTOR AXIS FOR MOTOR VEHICLES, IN PARTICULAR VEHICLES FOR INTERNAL TRANSPORT |
| WO1986007324A1 (en) * | 1985-06-15 | 1986-12-18 | Zahnradfabrik Friedrichshafen Ag | Overlapping steering gear system for track-laying vehicles |
| US7703353B2 (en) * | 2006-11-28 | 2010-04-27 | Ford Global Technologies, Llc | Drive unit connected to a transmission output for producing forward and reverse device |
| CN101519035A (en) * | 2008-12-31 | 2009-09-02 | 南京汽车集团有限公司 | Mixed power electromechanical coupling power transmission device |
| CN106915245B (en) * | 2015-12-25 | 2020-08-07 | 比亚迪股份有限公司 | Power driving system and vehicle with same |
| US20180172124A1 (en) * | 2016-12-20 | 2018-06-21 | American Axle & Manufacturing, Inc. | Electric drive axle with traction and vectoring capabilities |
| US10507718B2 (en) * | 2017-02-15 | 2019-12-17 | Ford Global Technologies, Llc | Hybrid transaxle |
-
2021
- 2021-10-18 CN CN202111208128.3A patent/CN114148152B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114148152A (en) | 2022-03-08 |
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