CN109466299B - Light-weight double-motor double-speed reducer electric drive axle assembly - Google Patents
Light-weight double-motor double-speed reducer electric drive axle assembly Download PDFInfo
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- CN109466299B CN109466299B CN201811462070.3A CN201811462070A CN109466299B CN 109466299 B CN109466299 B CN 109466299B CN 201811462070 A CN201811462070 A CN 201811462070A CN 109466299 B CN109466299 B CN 109466299B
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- speed reducer
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 204
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 2
- 230000009194 climbing Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
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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
-
- 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
Abstract
The invention provides a light-weight double-motor double-reducer electric drive axle assembly, wherein both drive motors can adopt high-speed motors, so that the torque is reduced on the premise of the same power, and the weight and cost of the motors are reduced; in order to meet the requirement of the maximum climbing gradient of the whole vehicle, the two small-torque high-rotation-speed motors can be respectively matched with a large-speed-ratio speed reducer, and enough driving force is provided for the whole vehicle; according to the condition of the whole vehicle, reasonably selecting parameters such as power, torque, efficiency distribution and the like of the two motors, reasonably matching the speed ratio of a speed reducer connected with the parameters, and providing an optimal driving mode for the whole vehicle; the two driving motors and the speed reducer can select the same parameters to reduce the generation cost, and can also select different parameters to avoid resonance points of the two systems, so that the NVH (noise vibration and harshness) characteristic of the assembly is ensured; the electronic differential technology for independently driving the left and right wheels is adopted, a traditional bevel gear type differential mechanism assembly is omitted, the weight of the assembly can be effectively reduced, meanwhile, the driving force of the wheels can be effectively ensured, and the running stability and safety of the whole vehicle are improved.
Description
Technical Field
The invention belongs to the technical field of electric drive axle assemblies, and particularly relates to a light-weight double-motor double-reducer electric drive axle assembly.
Background
Currently, there are two main structural forms of dual-motor dual-reducer electric drive axles, one is a wheel-side electric drive axle, and the other is a central integrated electric drive axle. The motors and the reducers of the wheel-side electric drive axle are distributed at two ends of the axle, and an electronic differential technology of independently driving left and right wheels is adopted, but the wheel-side electric drive axle is mainly applied to new energy buses due to small ground clearance; the motor and the decelerator of the central integrated electric drive axle are distributed at the front side and the rear side of the center of the axle housing, wherein the two decelerator share the traditional bevel gear type differential mechanism assembly, the power of the two motors is respectively transmitted to the differential mechanism through the decelerator, and then is transmitted to the wheels through the differential mechanism, the left half axle and the right half axle, so that the electric drive axle assembly has large weight and high cost.
Disclosure of Invention
The invention provides a light-weight double-motor double-reducer electric drive axle assembly, which aims to overcome the limitations of the existing electric drive axles.
The invention is realized by the following technical scheme:
the utility model provides a two reduction gear electric drive axle assemblies of lightweight bi-motor, includes the axle housing, is provided with left semi-axis and right semi-axis in the axle housing, and left wheel is connected with the one end of left semi-axis, and right wheel is connected with the one end of right semi-axis, its characterized in that, first driving motor is connected with first reduction gear assembly, and second driving motor is connected with second reduction gear assembly, and the other end of left semi-axis is connected with first reduction gear assembly, and the other end of right semi-axis is connected with second reduction gear assembly;
the first speed reducer assembly comprises a first speed reducer first shaft, a first speed reducer first-stage speed reduction driving cylindrical gear, a first speed reducer first-stage speed reduction driven cylindrical gear, a first speed reducer second-stage speed reduction driving cylindrical gear, a first speed reducer second shaft, a first speed reducer triaxial, a first speed reducer second-stage speed reduction driven cylindrical gear, a first speed reducer third-stage speed reduction driving cylindrical gear and a first speed reducer third-stage speed reduction driven cylindrical gear; the first-stage reduction driving cylindrical gear of the first speed reducer is fixedly connected with a first shaft of the first speed reducer, the first-stage reduction driving cylindrical gear of the first speed reducer is meshed with a first-stage reduction driven cylindrical gear of the first speed reducer, the first-stage reduction driven cylindrical gear of the first speed reducer is fixedly connected with a second shaft of the first speed reducer, the first-stage reduction driving cylindrical gear of the second speed reducer is meshed with a second-stage reduction driven cylindrical gear of the first speed reducer, the first-stage reduction driven cylindrical gear of the second speed reducer and the third-stage reduction driving cylindrical gear of the first speed reducer are fixedly connected with a third shaft of the first speed reducer, the third-stage reduction driving cylindrical gear of the first speed reducer is meshed with a third-stage reduction driven cylindrical gear of the first speed reducer, and the left half shaft is fixedly connected with the third-stage reduction driven cylindrical gear of the first speed reducer through a spline;
the second speed reducer assembly comprises a first speed reducer shaft, a first speed reducer primary speed reduction driving cylindrical gear, a second speed reducer primary speed reduction driven cylindrical gear, a second speed reducer secondary speed reduction driving cylindrical gear, a second speed reducer shaft, a second speed reducer triaxial, a second speed reducer secondary speed reduction driven cylindrical gear, a second speed reducer tertiary speed reduction driving cylindrical gear and a second speed reducer tertiary speed reduction driven cylindrical gear; the first-stage reduction driving cylindrical gear of the second speed reducer is fixedly connected with a first shaft of the second speed reducer, the first-stage reduction driving cylindrical gear of the second speed reducer is meshed with a first-stage reduction driven cylindrical gear of the second speed reducer, the second-stage reduction driving cylindrical gear of the second speed reducer is fixedly connected with a second shaft of the second speed reducer, the second-stage reduction driving cylindrical gear of the second speed reducer is meshed with a second-stage reduction driven cylindrical gear of the second speed reducer, the second-stage reduction driven cylindrical gear of the second speed reducer and the third-stage reduction driving cylindrical gear of the second speed reducer are fixedly connected with a third shaft of the second speed reducer, the third-stage reduction driving cylindrical gear of the second speed reducer is meshed with a third-stage reduction driven cylindrical gear of the second speed reducer, and the right half shaft is fixedly connected with the third-stage reduction driven cylindrical gear of the second speed reducer through a spline;
the further technical scheme is as follows:
the first speed reducer assembly and the second speed reducer assembly are respectively arranged on two sides outside the axle housing.
Compared with the prior art, the invention has the beneficial effects that:
according to the light-weight double-motor double-reducer electric drive axle assembly, both drive motors can adopt high-speed motors, and the torque is reduced on the premise of the same power, so that the weight and cost of the motors are reduced; in order to meet the requirement of the maximum climbing gradient of the whole vehicle, the two small-torque high-rotation-speed motors can be respectively matched with a large-speed-ratio speed reducer, and enough driving force is provided for the whole vehicle; meanwhile, according to the condition of the whole vehicle, parameters such as power, torque, efficiency distribution and the like of the two motors are reasonably selected, and the speed ratio of a speed reducer connected with the two motors is reasonably matched, so that an optimal driving mode is provided for the whole vehicle; the two driving motors and the speed reducer can select the same parameters to reduce the generation cost, and can also select different parameters to avoid resonance points of the two systems, so that the NVH (noise vibration and harshness) characteristic of the assembly is ensured; the electronic differential technology for independently driving the left and right wheels is adopted, a traditional bevel gear type differential mechanism assembly is omitted, the weight of the assembly can be effectively reduced, meanwhile, the driving force of the wheels can be effectively ensured, and the running stability and safety of the whole vehicle are improved.
Drawings
The invention is further described below with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a light-weight dual-motor dual-reducer electric drive axle assembly according to the present invention.
Fig. 2 is a schematic structural view of a first decelerator assembly according to the present invention.
Fig. 3 is a schematic diagram of a second speed reducer assembly according to the present invention.
In the figure: 1. the first drive motor, 2, first reducer assembly, 3, second drive motor, 4, second reducer assembly, 5, left half shaft, 6, left wheel, 7, right half shaft, 8, right wheel, 2-1, first reducer one-shaft, 2-2, first reducer one-stage reduction drive cylindrical gear, 2-3, first reducer one-stage reduction driven cylindrical gear, 2-4, first reducer two-stage reduction drive cylindrical gear, 2-5, first reducer two-shaft, 2-6, first reducer three-shaft, 2-7, first reducer two-stage reduction driven cylindrical gear, 2-8, first reducer three-stage reduction drive cylindrical gear, 2-9, first reducer three-stage reduction driven cylindrical gear, 4-1, second reducer one-shaft, 4-2, second reducer one-stage reduction drive cylindrical gear, 4-3, second reducer one-stage reduction cylindrical gear, 4-4, second reducer two-stage reduction drive cylindrical gear, 4-5, second reducer two-shaft, 4-6, second reducer two-stage reduction cylindrical gear, 4-7, third reducer two-stage reduction cylindrical gear, and third-stage reduction cylindrical gear.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
as shown in fig. 1 to 3: the invention provides a light-weight double-motor double-speed reducer electric drive axle assembly, which comprises an axle housing, a first drive motor 1, a first speed reducer assembly 2, a second drive motor 3, a second speed reducer assembly 4, a left half axle 5, a left wheel 6, a right half axle 7 and a right wheel 8; a left half shaft 5 and a right half shaft 7 are arranged in the axle housing, a left wheel 6 is connected with one end of the left half shaft 5, a right wheel 8 is connected with one end of the right half shaft 7, a first driving motor 1 is connected with the first speed reducer assembly 2, a second driving motor 3 is connected with the second speed reducer assembly 4, the other end 5 of the left half shaft is connected with the first speed reducer assembly 2, and the other end 7 of the right half shaft is connected with the second speed reducer assembly 4; the first speed reducer assembly 2 comprises a first speed reducer first shaft 2-1, a first speed reducer first-stage speed reduction driving cylindrical gear 2-2, a first speed reducer first-stage speed reduction driven cylindrical gear 2-3, a first speed reducer second-stage speed reduction driving cylindrical gear 2-4, a first speed reducer second shaft 2-5, a first speed reducer triaxial 2-6, a first speed reducer second-stage speed reduction driven cylindrical gear 2-7, a first speed reducer third-stage speed reduction driving cylindrical gear 2-8 and a first speed reducer third-stage speed reduction driven cylindrical gear 2-9; the second reducer assembly 4 comprises a second reducer first shaft 4-1, a second reducer first-stage reduction driving cylindrical gear 4-2, a second reducer first-stage reduction driven cylindrical gear 4-3, a second reducer second-stage reduction driving cylindrical gear 4-4, a second reducer second shaft 4-5, a second reducer triaxial 4-6, a second reducer second-stage reduction driven cylindrical gear 4-7, a second reducer third-stage reduction driving cylindrical gear 4-8 and a second reducer third-stage reduction driven cylindrical gear 4-9.
As shown in FIG. 2, a first-stage reduction driving cylindrical gear 2-2 of the first speed reducer is fixedly connected with a first-stage reduction driving cylindrical gear 2-1 of the first speed reducer, the first-stage reduction driving cylindrical gear 2-2 of the first speed reducer is meshed with a first-stage reduction driven cylindrical gear 2-3 of the first speed reducer, the first-stage reduction driven cylindrical gear 2-3 of the first speed reducer, a second-stage reduction driving cylindrical gear 2-4 of the first speed reducer is fixedly connected with a second-stage reduction driving cylindrical gear 2-5 of the first speed reducer, the first-stage reduction driving cylindrical gear 2-4 of the first speed reducer is meshed with a second-stage reduction driven cylindrical gear 2-7 of the first speed reducer, the third-stage reduction driving cylindrical gear 2-8 of the first speed reducer is fixedly connected with a third-stage reduction driven cylindrical gear 2-6 of the first speed reducer, and the third-stage reduction driving cylindrical gear 2-8 of the first speed reducer is meshed with a third-stage reduction driven cylindrical gear 2-9 of the first speed reducer.
The first driving motor 1 transmits power to the first-stage reduction driven cylindrical gear 2-3 of the first speed reducer through the first speed reducer first shaft 2-1 and the first-stage reduction driving cylindrical gear 2-2 of the first speed reducer, then transmits power to the first-stage reduction driven cylindrical gear 2-7 of the first speed reducer through the first speed reducer second shaft 2-5 and the first-stage reduction driving cylindrical gear 2-4 of the first speed reducer, and then transmits power to the third-stage reduction driven cylindrical gear 2-9 of the first speed reducer through the first speed reducer triaxial 2-6 and the third-stage reduction driving cylindrical gear 2-8 of the first speed reducer.
As shown in fig. 3, the first-stage reduction driving cylindrical gear 4-2 of the second reducer is fixedly connected with the first shaft 4-1 of the second reducer, the first-stage reduction driving cylindrical gear 4-2 of the second reducer is meshed with the first-stage reduction driven cylindrical gear 4-3 of the second reducer, the second-stage reduction driving cylindrical gear 4-4 of the second reducer is fixedly connected with the second shaft 4-5 of the second reducer, the second-stage reduction driving cylindrical gear 4-4 of the second reducer is meshed with the second-stage reduction driven cylindrical gear 4-7 of the second reducer, the second-stage reduction driven cylindrical gear 4-7 of the second reducer and the third-stage reduction driving cylindrical gear 4-8 of the second reducer are fixedly connected with the third shaft 4-6 of the second reducer, the third-stage reduction driving cylindrical gear 4-8 of the second reducer is meshed with the third-stage reduction driven cylindrical gear 4-9 of the second reducer, and the right half shaft 7 is fixedly connected with the third-stage reduction driven cylindrical gear 4-9 of the second reducer through a spline;
the second driving motor 3 can transmit power to the second reducer three-stage reduction driven cylindrical gear 4-9 through the second reducer one-stage reduction driving cylindrical gear 4-2, the second reducer one-stage reduction driven cylindrical gear 4-3, the second reducer two-stage reduction driving cylindrical gear 4-4, the second reducer two-stage reduction driven cylindrical gear 4-7, the second reducer three-shaft 4-6 and the second reducer three-stage reduction driving cylindrical gear 4-8.
In summary, the first driving motor 1 and the second driving motor 3 can respectively transmit power to the left half shaft 5 and the right half shaft 7 through the first speed reducer assembly 2 and the second speed reducer assembly 4, and finally respectively transmit power to the left wheel 6 and the right wheel 8 through the left half shaft 5 and the right half shaft 7 to drive the whole vehicle to run.
Claims (2)
1. The utility model provides a two reduction gear electric drive axle assemblies of lightweight bi-motor, including the axle housing, be provided with left semi-axis (5) and right semi-axis (7) in the axle housing, left wheel (6) are connected with the one end of left semi-axis (5), right wheel (8) are connected with the one end of right semi-axis (7), a serial communication port, first driving motor (1) are connected with first reduction gear assembly (2), second driving motor (3) are connected with second reduction gear assembly (4), the other end of left semi-axis (5) is connected with first reduction gear assembly (2), the other end of right semi-axis (7) is connected with second reduction gear assembly (4); the power of the first driving motor (1) is the same as that of the second driving motor (3);
the first speed reducer assembly (2) comprises a first speed reducer first shaft (2-1), a first speed reducer first-stage speed reduction driving cylindrical gear (2-2), a first speed reducer first-stage speed reduction driven cylindrical gear (2-3), a first speed reducer second-stage speed reduction driving cylindrical gear (2-4), a first speed reducer second shaft (2-5), a first speed reducer three shaft (2-6), a first speed reducer second-stage speed reduction driven cylindrical gear (2-7), a first speed reducer third-stage speed reduction driving cylindrical gear (2-8) and a first speed reducer third-stage speed reduction driven cylindrical gear (2-9); the first-speed reducer primary speed reduction driving cylindrical gear (2-2) is fixedly connected with a first-speed reducer primary shaft (2-1), the first-speed reducer primary speed reduction driving cylindrical gear (2-2) is meshed with a first-speed reducer primary speed reduction driven cylindrical gear (2-3), the first-speed reducer secondary speed reduction driving cylindrical gear (2-4) is fixedly connected with a first-speed reducer secondary shaft (2-5), the first-speed reducer secondary speed reduction driving cylindrical gear (2-4) is meshed with a first-speed reducer secondary speed reduction driven cylindrical gear (2-7), the first-speed reducer secondary speed reduction driven cylindrical gear (2-7) and the first-speed reducer tertiary speed reduction driving cylindrical gear (2-8) are fixedly connected with a first-speed reducer triaxial shaft (2-6), the first-speed reducer tertiary speed reduction driving cylindrical gear (2-8) is meshed with the first-speed reducer tertiary speed reduction driven cylindrical gear (2-9), and the left half shaft (5) is fixedly connected with the first-speed reducer tertiary speed reduction driven cylindrical gear (2-9) through splines;
the second speed reducer assembly (4) comprises a second speed reducer first shaft (4-1), a second speed reducer first-stage speed reduction driving cylindrical gear (4-2), a second speed reducer first-stage speed reduction driven cylindrical gear (4-3), a second speed reducer second-stage speed reduction driving cylindrical gear (4-4), a second speed reducer second shaft (4-5), a second speed reducer triaxial (4-6), a second speed reducer second-stage speed reduction driven cylindrical gear (4-7), a second speed reducer third-stage speed reduction driving cylindrical gear (4-8) and a second speed reducer third-stage speed reduction driven cylindrical gear (4-9); the first-stage reduction driving cylindrical gear (4-2) of the second speed reducer is fixedly connected with a first shaft (4-1) of the second speed reducer, the first-stage reduction driving cylindrical gear (4-2) of the second speed reducer is meshed with the first-stage reduction driven cylindrical gear (4-3) of the second speed reducer, the second-stage reduction driving cylindrical gear (4-4) of the second speed reducer is fixedly connected with a second shaft (4-5) of the second speed reducer, the second-stage reduction driving cylindrical gear (4-4) of the second speed reducer is meshed with the second-stage reduction driven cylindrical gear (4-7), the second-stage reduction driven cylindrical gear (4-7) of the second speed reducer and the third-stage reduction driving cylindrical gear (4-8) of the second speed reducer are fixedly connected with the third shaft (4-6) of the second speed reducer, and the right half shaft (7) is fixedly connected with the third-stage reduction driven cylindrical gear (4-9) of the second speed reducer through splines.
2. A lightweight dual motor dual speed reducer electric drive axle assembly as claimed in claim 1, characterized in that the first speed reducer assembly (2) and the second speed reducer assembly (4) are respectively arranged on both sides of the outer portion of the axle housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462070.3A CN109466299B (en) | 2018-11-30 | 2018-11-30 | Light-weight double-motor double-speed reducer electric drive axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462070.3A CN109466299B (en) | 2018-11-30 | 2018-11-30 | Light-weight double-motor double-speed reducer electric drive axle assembly |
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| Publication Number | Publication Date |
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| CN109466299A CN109466299A (en) | 2019-03-15 |
| CN109466299B true CN109466299B (en) | 2023-11-21 |
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| CN201811462070.3A Active CN109466299B (en) | 2018-11-30 | 2018-11-30 | Light-weight double-motor double-speed reducer electric drive axle assembly |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239326A (en) * | 2019-06-05 | 2019-09-17 | 同济大学 | A kind of symmetrical motor distribution drive system of new-energy automobile |
| CN110217049A (en) * | 2019-06-05 | 2019-09-10 | 同济大学 | A kind of electric car distribution driving axis |
| CN116964354A (en) * | 2021-03-30 | 2023-10-27 | 三菱自动车工业株式会社 | Driving force adjustment device and method for designing driving force adjustment device |
| WO2023272582A1 (en) * | 2021-06-30 | 2023-01-05 | 华为数字能源技术有限公司 | Power assembly system and electric vehicle |
| CN114771228A (en) * | 2022-03-22 | 2022-07-22 | 陕西法士特齿轮有限责任公司 | Commercial car bi-motor tertiary transmission electric drive axle assembly |
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| WO2015165302A1 (en) * | 2014-04-29 | 2015-11-05 | 浙江吉利控股集团有限公司 | Integrated steering drive axle for vehicle and electric vehicle |
| CN108501696A (en) * | 2018-04-03 | 2018-09-07 | 浙江吉利控股集团有限公司 | A kind of electric drive rear axle assy for light medium sized vehicle |
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| CN108819709A (en) * | 2018-07-02 | 2018-11-16 | 汽解放汽车有限公司 | Two gear AMT motor integrated form driving axis |
| CN209505415U (en) * | 2018-11-30 | 2019-10-18 | 一汽解放汽车有限公司 | A kind of lightweight bi-motor dual reducer electric drive axle assembly |
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2018
- 2018-11-30 CN CN201811462070.3A patent/CN109466299B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015165302A1 (en) * | 2014-04-29 | 2015-11-05 | 浙江吉利控股集团有限公司 | Integrated steering drive axle for vehicle and electric vehicle |
| CN207875366U (en) * | 2017-12-27 | 2018-09-18 | 中国第一汽车股份有限公司 | Two gear AMT motor integrated form driving axis |
| CN108501696A (en) * | 2018-04-03 | 2018-09-07 | 浙江吉利控股集团有限公司 | A kind of electric drive rear axle assy for light medium sized vehicle |
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