CN104553712A - Power-adjustable dual-motor driven electric vehicle rear axle - Google Patents
Power-adjustable dual-motor driven electric vehicle rear axle Download PDFInfo
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- CN104553712A CN104553712A CN201310519011.6A CN201310519011A CN104553712A CN 104553712 A CN104553712 A CN 104553712A CN 201310519011 A CN201310519011 A CN 201310519011A CN 104553712 A CN104553712 A CN 104553712A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The invention discloses a power-adjustable dual-motor driven electric vehicle rear axle, and belongs to the technical field of electric vehicle rear axles. The rear axle comprises a differential mechanism, and is provided with two driving motors, wherein power output shafts of the two driving motors are directly or indirectly connected and used for driving two driving gears; both the two driving gears are meshed with a driven gear of the differential mechanism; the power output shaft of one motor is connected with the driving gears through a starter drive. The power-adjustable dual-motor driven electric vehicle rear axle is simple in structure, and is easy to implement; by adopting the power-adjustable dual-motor driven electric vehicle rear axle, the output performance of an electric vehicle can be improved and optimized, the application space of the electric vehicle is enlarged, and the development and upgrade of the electric vehicle manufacturing industry are facilitated.
Description
Technical field
The present invention relates to a kind of motor rear axle, particularly a kind of power-adjustable formula motor rear axle, belongs to motor rear axle technical field.
Background technology
Electronlmobil in recent years, electro-tricycle due to its environmental-protecting performance and the development of cheap usage charges rapidly, the back axle manufacture of battery-driven car and demand present fast development trend, back axle on battery-driven car generally adopts a driven by motor reductor access diff to drive two semiaxis on back axle to rotate, this back axle is arranged a motor, for miniwatt, the use occasion of low moment of torsion can meet the communications and transportation requirement on Plain and the good road of situation substantially, but for superpower, the use occasion of high pulling torque can not meet the demands on the one hand completely, the moment of torsion transmitted on the other hand and power excessive when motor easily damage, in recent years, battery-driven car is more and more extensive as the use of loading purposes, larger power and moment of torsion is needed to export when loading, and also there is the trend progressively popularized in remote mountain areas in battery-driven car, on the hill path needing frequent uphill/downhill, normal and the safety traffic of battery-driven car needs to possess superpower, the output characteristic of high pulling torque, in order to adapt to this demand, traditional way is the power increasing drive motor, but generally along with its volume of increase of power also will increase, bring the problem in space to corresponding rear assembling, so simple, by increasing power of motor, can not to adapt to battery-driven car completely high-power, the development need that high moment of torsion exports, excessive motor volume brings problem spatially substantially cannot realize in the design of some vehicles to the installation of back axle, in existing market practice, need one can realize in case of need exporting high moment of torsion, high-performance motor rear axle, .
Summary of the invention
The object of the invention is to overcome above technical matters, a kind of power-adjustable formula Dual-motors Driving motor rear axle is provided.
For realizing object of the present invention, the technical solution adopted in the present invention is: power-adjustable formula Dual-motors Driving motor rear axle, comprise diff, described back axle is provided with two drive motor, the power take-off shaft of two drive motor directly or indirectly connects driving two driving gears, two driving gears are all meshed with the ring gear of diff, the power take-off shaft of one of them motor is connected by isolator with between driving gear, two described motors are positioned at the same side of diff on back axle length direction, two described motors are positioned at the both sides of diff on back axle length direction, described isolator is unilateral bearing, two described motors are identical.
The Advantageous Effects of power-adjustable formula Dual-motors Driving motor rear axle provided by the present invention is: the present invention configures two motors on back axle, the Power output of two motors drives the same ring gear in diff to rotate by two driving gears and realizes transmission of power, two motors can work simultaneously, realize superpower, the output characteristic requirement of high pulling torque, load-carrying can be met, to the requirement of power and moment of torsion in the situations such as hill path, between the connected driving gear of power take-off shaft of one of them motor, unilateral bearing is set, make back axle of the present invention in use power adjustable, the motor being provided with isolator connection is controlled by controller, need high-power, start when high moment of torsion exports, do not need superpower, high pulling torque does not start when exporting, can select easily to start and use single motor still to enable double-motor, the watt level of two motors can be equipped with flexibly within the specific limits and regulate, realize the flexible that battery-driven car exports gross horsepower, two motors are positioned at the same side of diff, also Dual-motors Driving can be realized when back axle overall length is shorter.Structure of the present invention is simple, is easy to realize, and is applied in the output performance that motor rear axle can improve and optimize battery-driven car, expands the application space of battery-driven car, promotes the manufacturing development upgrading of battery-driven car.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the schematic diagram that band isolator of the present invention drives cross section.
Detailed description of the invention
In order to better understand and implement technical scheme of the present invention, provide some embodiments of the present invention at this, these embodiments, in order to better explain technical solutions according to the invention, are not formed any form restriction of the present invention.
Power-adjustable formula Dual-motors Driving motor rear axle, comprise diff, described back axle is provided with two drive motor, two drive motor directly or by subtracting machine connect the driving gear driven on power take-off shaft respectively, two driving gears are all meshed with the ring gear of diff, the power take-off shaft of one of them motor is connected by isolator with between driving gear, two described motors are positioned at the same side of diff on back axle length direction, two described motors are positioned at the both sides of diff on back axle length direction, described isolator is unilateral bearing, two described motors are identical.In the present invention, the ring gear of diff engages the gear of extrinsic power input to diff, about the power transmission structure of diff inside after power input diff, axle transmission of power diff on current motor rear axle is adopted to realize, diff to be input between Power output to semiaxis from power can the various intermediate transfer mechanism with spatial placement as required, core spirit of the present invention is same ring gear double-motor power being exported to diff, isolator is provided with between one of them driving gear and power take-off shaft of motor, can select whether to open and use one of them motor.
By reference to the accompanying drawings 1, Fig. 2 is further elaborated the specific embodiment of the present invention, in figure, each mark is depicted as: 1-1: motor a, 1-2: reductor a, 1-3: power take-off shaft a, 1-4: driving gear a, 2-1: motor b, 2-2: reductor b, 2-3: power take-off shaft b, 2-4: driving gear b, 2-5: unilateral bearing, 3: differential side-gear, 4: back axle, 5: differential side-gear axle, in the present embodiment, two motors are positioned at diff side on back axle length direction, the direction of two motors is relatively, namely 180
ocontraposition is installed, back axle 4 is fixedly installed motor a1-1, motor b2-1, the output of motor a1-1 connects reductor a1-2, reductor a is fixedly connected with driving gear a1-4 by power take-off shaft a1-3, driving gear a1-4 is meshed with the ring gear 3 of diff, the output of motor b2-1 connects reductor b2-2, reductor b is by the inner ring tight fit connection of power take-off shaft a1-3 and unilateral bearing 2-5, the outer ring of unilateral bearing 2-5 and driving gear b2-4 tight fit connection, circular trough can be set in driving gear b side, the outer ring flush fit of unilateral bearing is set in circular groove, driving gear b2-4 is meshed with the ring gear 3 of diff, in the present invention, isolator can also select flywheel.When the present invention installs, need to increase a power input port on diff shell compared with a motor-driven situation, should be able to realize as those of ordinary skill in the art, two motors in the present invention are arranged on rear-axle casing by registration device, it is benchmark that locate mode can adopt with motor bottom, also can adopt with diff is positioning datum, the control of two motors can adopt a controller to control separately, also controller can be adopted to control respectively, two motors can adopt a battery pack to power, and multiple battery pack also can be adopted to power.When the present invention works, in power and the less occasion of torque demand, start by controller the machine operation not connecting isolator can meet the demands, during work, driving gear a drives the ring gear of diff to rotate, due to setting and the application of unilateral bearing, driving gear b can along with rotation, motor b non rotating, in power and the large occasion of torque demand, start two motors, the power take-off shaft of motor b drives the ring gear 3 of driving gear b rotary actuation diff to rotate and realizes driving torque and put forward high-power function under the effect of unilateral bearing simultaneously.The present invention configures two motors on back axle, the Power output of two motors drives the same ring gear in diff to rotate by two driving gears and realizes transmission of power, two motors can work simultaneously, realize superpower, the output characteristic requirement of high pulling torque, load-carrying can be met, to the requirement of power and moment of torsion in the situations such as hill path, between the connected driving gear of power take-off shaft of one of them motor, unilateral bearing is set, make back axle of the present invention in use power adjustable, the motor being provided with isolator connection is controlled by controller, need high-power, start when high moment of torsion exports, do not need superpower, high pulling torque does not start when exporting, can rotate easily to start uses single motor still to enable double-motor, the watt level of two motors can be equipped with flexibly within the specific limits and regulate, realize the flexible that battery-driven car exports gross horsepower, structure of the present invention is simple, be easy to realize, be applied in the output performance that motor rear axle can improve and optimize battery-driven car, expand the application space of battery-driven car, promote the manufacturing development upgrading of battery-driven car.
After describing various specific embodiment of the present invention above in detail, those of ordinary skill in the art should be well understood to, according to the various common practise of this area, can carry out various equivalent variations, equivalent replacement according to thinking of the present invention or simply revise, these all should belong to the scope of technical solution of the present invention.
Claims (5)
1. power-adjustable formula Dual-motors Driving motor rear axle, comprise diff, it is characterized in that: described back axle is provided with two drive motor, the power take-off shaft of two drive motor directly or indirectly connects driving two driving gears, two driving gears are all meshed with the ring gear of diff, and the power take-off shaft of one of them motor is connected by isolator with between driving gear.
2. power-adjustable formula Dual-motors Driving motor rear axle according to claim 1, is characterized in that: two described motors are positioned at the same side of diff on back axle length direction.
3. power-adjustable formula Dual-motors Driving motor rear axle according to claim 1, is characterized in that: two described motors are positioned at the both sides of diff on back axle length direction.
4. power-adjustable formula Dual-motors Driving motor rear axle according to claim 1, is characterized in that: described isolator is unilateral bearing.
5. power-adjustable formula Dual-motors Driving motor rear axle according to claim 1, is characterized in that: two described motors are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519011.6A CN104553712A (en) | 2013-10-29 | 2013-10-29 | Power-adjustable dual-motor driven electric vehicle rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519011.6A CN104553712A (en) | 2013-10-29 | 2013-10-29 | Power-adjustable dual-motor driven electric vehicle rear axle |
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| Publication Number | Publication Date |
|---|---|
| CN104553712A true CN104553712A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310519011.6A Pending CN104553712A (en) | 2013-10-29 | 2013-10-29 | Power-adjustable dual-motor driven electric vehicle rear axle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882399A (en) * | 2015-09-25 | 2016-08-24 | 北京长城华冠汽车科技股份有限公司 | Speed reduction box of electric automobile and control method |
| CN107972800A (en) * | 2017-10-12 | 2018-05-01 | 金洁琼 | Side hanging electric bicycle Belt Driven by Double Motor mechanism |
| WO2018130101A1 (en) * | 2017-01-13 | 2018-07-19 | 苏州绿控传动科技有限公司 | Electric drive axle |
| CN108674162A (en) * | 2018-05-31 | 2018-10-19 | 汽解放汽车有限公司 | A kind of axle assembly of Dual-motors Driving |
| CN109017290A (en) * | 2018-09-17 | 2018-12-18 | 苏州绿控传动科技股份有限公司 | A kind of pure electric vehicle center driven bridge |
| CN109466298A (en) * | 2018-11-30 | 2019-03-15 | 浙江伊控动力系统有限公司 | Compact dual-motor drive system and driving method |
| CN109955703A (en) * | 2017-12-22 | 2019-07-02 | 东风德纳车桥有限公司 | A kind of external hanging type Dual-motors Driving car axle assembly |
-
2013
- 2013-10-29 CN CN201310519011.6A patent/CN104553712A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882399A (en) * | 2015-09-25 | 2016-08-24 | 北京长城华冠汽车科技股份有限公司 | Speed reduction box of electric automobile and control method |
| WO2018130101A1 (en) * | 2017-01-13 | 2018-07-19 | 苏州绿控传动科技有限公司 | Electric drive axle |
| CN107972800A (en) * | 2017-10-12 | 2018-05-01 | 金洁琼 | Side hanging electric bicycle Belt Driven by Double Motor mechanism |
| CN109955703A (en) * | 2017-12-22 | 2019-07-02 | 东风德纳车桥有限公司 | A kind of external hanging type Dual-motors Driving car axle assembly |
| CN108674162A (en) * | 2018-05-31 | 2018-10-19 | 汽解放汽车有限公司 | A kind of axle assembly of Dual-motors Driving |
| CN109017290A (en) * | 2018-09-17 | 2018-12-18 | 苏州绿控传动科技股份有限公司 | A kind of pure electric vehicle center driven bridge |
| CN109466298A (en) * | 2018-11-30 | 2019-03-15 | 浙江伊控动力系统有限公司 | Compact dual-motor drive system and driving method |
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Application publication date: 20150429 |