CN104057821A - Power system assembly for two-speed electric vehicles - Google Patents
Power system assembly for two-speed electric vehicles Download PDFInfo
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- CN104057821A CN104057821A CN201410243816.7A CN201410243816A CN104057821A CN 104057821 A CN104057821 A CN 104057821A CN 201410243816 A CN201410243816 A CN 201410243816A CN 104057821 A CN104057821 A CN 104057821A
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Abstract
The invention provides a power system assembly for two-speed electric vehicles. The power system assembly for two-speed electric vehicles comprises an electromotor, a single-row planetary gear train, a synchronizer, a single reduction final drive, a compensating gear, a magnet brake and a housing, wherein the stator of the electromotor is fixed inside the housing; a rotor is connected with one side of a rotor shaft; the other side of the rotor shaft is arranged inside the housing in a penetrating manner through a bearing; the single-row planetary gear train comprises a central gear, a planet carrier and more than two planetary gears; the single reduction final drive comprises a small main reducing gear and a big main reducing gear which are meshed with each other; the synchronizer comprises a first gear synchronous lock ring, a second gear synchronous lock ring, a meshing sleeve and a meshing sleeve seat. According to the invention, the technology of integrated structural design is adopted, so that the highly integrated design and the application of the motor, the transmission and the compensating gear is realized; the integration of the electrically-driven system becomes more obvious; the volume and the weight of the electrically-driven system are effectively reduced; the mounting is enabled to be more convenient; the two-gear speed change is adopted, so that the efficiency and the torque of the electromotor are improved.
Description
Technical field
The invention belongs to electronlmobil electric drive technical field, be specifically related to a kind of power system assembly of two gear electronlmobils.
Background technology
In recent years, China's electronlmobil has been obtained significant progress.At present, electronlmobil on market is the entrucking requirement that meets motor, most of producer adopts independently two parts forms to be assembled on vehicle body in motor and change-speed box, and this mounting means is by matching motor output shaft male splines to realize with input shaft female splines.But so not only can increase mechanicalness noise, vibration, and motor front end cover and case of transmission be absolute construction, will certainly affect the layout in car load space.And electronlmobil is in the market most of, and what adopt is the retarder of fixed speed ratio, can make like this traction electric machine to provide higher instantaneous torque at Heng Zhuanjuqu, provides higher running velocity again at Heng Gongshuaiqu.Meanwhile, there is the problem that motor working efficiency is lower.
Summary of the invention
In order to improve motor working efficiency, increase vehicle continual mileage, the invention provides a kind of power system assembly of two gear electronlmobils.
A kind of power system assembly of two gear electronlmobils comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff, magnet stopper 17 and housing 3; The stator 1 of electrical motor is fixed in a side of housing 3, and rotor 2 is connecting a side of rotor shaft 4.The opposite side of described rotor shaft 4 runs through the opposite side of being located at housing 3 by bearing; The middle part empty set of described rotor shaft 4 is provided with sun gear 6, is fixed with the engagement block set 14 on synchro simultaneously; On the housing 3 corresponding with sun gear 6, be fixed with internally toothed annulus 8; The opposite side empty set of rotor shaft 4 is provided with pinion carrier 9, and a side of pinion carrier 9 is provided with plural planetary wheel 7, and the opposite side of pinion carrier 9 is tubular axis shape, is fixed with the main gear 16 that reduces on it; The stator of described magnet stopper 17 is fixed on housing 3, and the drg armature of described magnet stopper 17 is connected with pinion carrier 9; Described plural planetary wheel 7 and sun gear 6 external toothings, while and the interior engagement of internally toothed annulus 8 form single planet circular system;
Described synchro comprises the synchronous lock ring 10 of a gear, the synchronous lock ring 15 of two gears, engaging sleeve 13 and engagement block set 14; Described engagement block set 14 is fixed on rotor shaft 4, and the synchronous lock ring 10 of a described gear is fixed on sun gear 6, and the synchronous lock ring 15 of two gears is fixed in pinion carrier 9, and described engaging sleeve 13 is provided with gearshift driver plate 12; Gearshift driver plate 12 runs through mutually with pinion carrier 9, and gearshift driver plate 12 rotates with pinion carrier 9, but gearshift driver plate 12 can be in pinion carrier 9 sway; The circumference of described gearshift driver plate 12 is provided with shift fork 11;
Described master reduces gear 16 and mainly subtracts big gear wheel 18 and engage, and forms single reduction final drive; Described master subtracts big gear wheel 18 and is connecting the flange on diff 19 housings, and the housing of diff 19 is located on housing 3 by bearing.
Described gearshift driver plate 12 comprises interior annulus and outer toroid, between described interior annulus and outer toroid, is connected by uniform muscle bar; In the pinion carrier 9 of answering with muscle pole pair, offer kidney slot, and described muscle bar is positioned at kidney slot, make interior annulus be positioned at the inner side of pinion carrier 9, outer toroid is positioned at the outside of pinion carrier 9, and the effect of the kidney slot driver plate 12 that is to make to shift gears is realized sway with respect to pinion carrier 9.
Described shift fork 11 is semi-annular shape, and the two ends of semicircular ring are respectively equipped with the fixture block of groove shape, and the fixture block at two ends is buckled in the outer toroid of gearshift driver plate 12.
Useful effect technique fruit of the present invention embodies in the following areas:
1. the present invention becomes driving motor for electric automobile an entirety with transmission design, has effectively reduced complexity and the area of housing 3, has reduced the axial and radial dimension of dynamic assembly;
2. the present invention is by sun gear 6 with mainly reduce gear 16 and be directly located on the rotor shaft 4 of drive motor, avoid motor output shaft to coordinate the concentricity tolerance of installing and cause with input shaft, eliminate the mechanical vibration that bring thus, reduced mechanical connection and noise;
3. power system of electric automobile assembly adopts two gear speed changes, one gear is through main reduction gear outputting power after the planet circular system deceleration consisting of sun gear 6, planetary wheel 7 and internally toothed annulus 8, two gears are for passing through the direct outputting power of main reduction gear, compared with current electronlmobil, drive motor can work long hours in efficient district, increases vehicle continual mileage;
4. the present invention adopts two gear dual-shaft variable schemes, by main one end that reduces gear 16 and be connected to pinion carrier 9, make two gears share a main reduction gear, this structural arrangement form is simple, remove driven gear shaft, reduced the radial dimension of this assembly, compact conformation, volume is little, weight is little, meets the principle of automotive light weight technology;
5. the present invention has magnet stopper 17 parking locking mechanism and realizes change-speed box and car load braking parking, and magnet stopper 17 has that energising separates, the characteristic of power-off brake.When automobile normal running, magnet stopper 17 is switched on, and in released state, now change-speed box is normally worked; When automobile is during in parking state, magnet stopper 17 power-off, in braking mode, master reduces gear 16 and is braked, and further diff 19 is braked, and can avoid unnecessary the sliding of vehicle, in the time of the road conditions of uphill/downhill and frequent starting parking, the parking safety that improves car load.
Brief description of the drawings
Fig. 1 is a kind of power system assembly structure sketch of two gear electronlmobils.
Fig. 2 is gearshift driver plate and pinion carrier partial view.
Fig. 3 is the assembling schematic diagram of gearshift driver plate and pinion carrier.
Sequence number in upper figure: 9 parts for pinion carrier in stator 1, rotor 2, housing 3, rotor shaft 4, sun gear 6, planetary wheel 7, internally toothed annulus 8, pinion carrier 9(Fig. 2), the synchronous lock ring 10 of a gear, shift fork 11, gearshift driver plate 12, engaging sleeve 13, engagement block set 14, the synchronous lock ring 15 of two gears, main gear 16, magnet stopper 17, main big gear wheel 18, diff 19, the wheel 20 of subtracting of reducing.
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the power system assembly of a kind of electronlmobil of the present invention is further described.
Embodiment
Referring to Fig. 1, a kind of power system assembly of two gear electronlmobils comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff, magnet stopper 17 and housing 3.
The stator 1 of electrical motor is fixedly installed in a side of housing 3, and rotor 2 is connecting a side of rotor shaft 4.The opposite side of rotor shaft 4 runs through the opposite side that is installed on housing 3 by bearing; The middle part empty set of rotor shaft 4 is provided with sun gear 6, is installed with the engagement block set 14 on synchro simultaneously.On the housing 3 corresponding with sun gear 6, be installed with internally toothed annulus 8.The opposite side empty set of rotor shaft 4 is provided with pinion carrier 9, and a side of pinion carrier 9 is provided with three planetary wheels 7, and the opposite side of pinion carrier 9 is tubular axis shape, is installed with the main gear 16 that reduces on it; The stator of magnet stopper 17 is fixed on housing 3, and the drg armature of magnet stopper 17 is connected with pinion carrier 9.Plural planetary wheel 7 and sun gear 6 external toothings, while and the interior engagement of internally toothed annulus 8 form single planet circular system.
Referring to Fig. 2 and Fig. 3, synchro comprises the synchronous lock ring 10 of a gear, the synchronous lock ring 15 of two gears, engaging sleeve 13 and engagement block set 14.The synchronous lock ring 10 of one gear is fixedly installed on sun gear 6, and the synchronous lock ring 15 of two gears is fixedly installed in pinion carrier 9, and engaging sleeve 13 is provided with gearshift driver plate 12; Gearshift driver plate 12 runs through mutually with pinion carrier 9, and gearshift driver plate 12 rotates with pinion carrier 9, and gearshift driver plate 12 comprises interior annulus and outer toroid, between interior annulus and outer toroid, is connected by uniform muscle bar; In the pinion carrier 9 of answering with muscle pole pair, offer kidney slot, described muscle bar is positioned at kidney slot, make interior annulus be positioned at the inner side of pinion carrier 9, outer toroid is positioned at the outside of pinion carrier 9, and the effect of the kidney slot driver plate 12 that is to make to shift gears is realized sway with respect to pinion carrier 9.The circumference of gearshift driver plate 12 is provided with shift fork 11, and shift fork 11 is semi-annular shape, and the two ends of semicircular ring are respectively equipped with the fixture block of groove shape, and the fixture block at two ends is buckled in the outer toroid of gearshift driver plate 12.
Main reduce gear 16 and mainly subtract big gear wheel 18 and engage, forming single reduction final drive; Master subtracts big gear wheel 18 and is connecting the flange on diff 19 housings, and the housing of diff 19 is located on housing 3 by bearing.
Principle of work of the present invention is described as follows:
Taking actual development type pure electric automobile as example, gear number is 2, and Planetary Gear Transmission group reduction ratio is 2.84, and base ratio is 4.According to Gear calculation method, the number of teeth that calculates each gear is as shown in table 1.
Table 1 gear table of gear tooth number
As shown in Figure 1, a kind of power system of electric automobile assembly has used following gearshift power element synchro and magnet stopper.
The power element of each gear is as shown in table 2.
The table 2 power element worksheet of shifting gears
Note: in table, "●" represents combination, "○" represents to separate.
Two forward gears and the power transmission line reversing gear of this power system of electric automobile assembly are as follows:
1. neutral (N position)
When neutral, magnet stopper 17 energising separates, and synchronizer sleeve 13 is neither synchronizeed lock ring 10 and engaged with a gear, and the lock ring 15 of also not synchronizeing with two gears engages, and now motor cannot be by transmission of power to wheel 20, and vehicle relies on inertia traveling or comes to a halt;
2. forward gear (D position)
(1) gear (D1 gear) that advances
Magnet stopper 17 energising separates, and synchro shift fork 11 is shifted to the synchronous lock ring 10 of a gear, drives gearshift driver plate 12 and engaging sleeve 13 to move right, and engaging sleeve 13 and is kept off synchronize lock ring 10 to engage;
Power rotates through rotor 2 rotor driven axles 4, and then drive sun gear 6 to rotate by engagement block set 14, engaging sleeve 13, the synchronous lock ring 10 of a gear, on housing 3, internally toothed annulus 8 is fixing, three planetary wheels 7 revolve round the sun around sun gear 6, pinion carrier 9 is rotated with three planetary wheels 7, pinion carrier 9 connects to drive by key and main reduce gear 16 and rotate, and power is passed to and is mainly subtracted big gear wheel 18 by the main gear 16 that reduces, and finally makes wheel 20 rotate outputting power by diff 19.This gear, for middle bottom gear, is mainly used in middle low speed driving and climbing etc.;
(2) two gears (D2 gear) that advance
Magnet stopper 17 energising separates, and synchro shift fork 11 is shifted to the synchronous lock ring 15 of two gears, drives gearshift driver plate 12 and engaging sleeve 13 to be moved to the left, and engaging sleeve 13 and two is kept off synchronize lock ring 15 to engage;
Power rotates through rotor 2 rotor driven axles 4, and then drive pinion carrier 9 to rotate by engagement block set 14, engaging sleeve 13, the synchronous lock ring 15 of two gears, pinion carrier 9 connects to drive by key and main reduce gear 16 and rotate, power is passed to and is mainly subtracted big gear wheel 18 by the main gear 16 that reduces, and finally makes wheel 20 rotate outputting power by diff 19.This gear, for top gear, is mainly used in running at high speed;
3. reverse gear (R position)
The present invention does not arrange the position of reversing gear specially, reverses gear and realizes by motor reversal, and power transmission line is identical with the gear that advances, and because rotor 2 reverses, last wheel 20 reverses, and realizes reversing;
4. parking (P position)
This halting mechanism adopts the magnet stopper 17 with energising separation, power-off brake characteristic.In the time that the normal road conditions of electronlmobil are travelled, magnet stopper 17 is switched on all the time, and it is in released state, and this parking locking mechanism is not worked; When electric automobile during traveling is during in the road conditions that uphill/downhill or frequent starting are stopped, magnet stopper 17 power-off, it is in braking mode, and this parking locking mechanism is just started working.It can replace the function of parking brake.
Claims (3)
1. a power system assembly for two grades of electronlmobils, comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff, magnet stopper (17) and housing (3); The stator (1) of electrical motor is fixed in a side of housing (3), and rotor (2) is connecting a side of rotor shaft (4), it is characterized in that: the opposite side of described rotor shaft (4) runs through the opposite side of being located at housing (3) by bearing; The middle part empty set of described rotor shaft (4) is provided with sun gear (6), is fixed with the engagement block set (14) on synchro simultaneously; On the housing (3) corresponding with sun gear (6), be fixed with internally toothed annulus (8); The opposite side empty set of rotor shaft (4) is provided with pinion carrier (9), and a side of pinion carrier (9) is provided with plural planetary wheel (7), and the opposite side of pinion carrier (9) is tubular axis shape, is fixed with the main gear (16) that reduces on it; It is upper that the stator of described magnet stopper (17) is fixed on housing (3), and the drg armature of described magnet stopper (17) is connected with pinion carrier (9); Described plural planetary wheel (7) and sun gear (6) external toothing, in while and internally toothed annulus (8), engagement forms single planet circular system;
Described synchro comprises one grade of synchronous lock ring (10), the synchronous lock ring of second gear (15), engaging sleeve (13) and engagement block set (14); Described engagement block set (15) is fixed on rotor shaft (4), described one grade of synchronous lock ring (10) is fixed on sun gear (6), it is upper that the synchronous lock ring of second gear (15) is fixed at pinion carrier (9), and described engaging sleeve (13) is provided with gearshift driver plate (12); Gearshift driver plate (12) runs through mutually with pinion carrier (9), and gearshift driver plate (12) is with pinion carrier (9) rotation, but gearshift driver plate (12) can be in the upper sway of pinion carrier (9); The circumference of described gearshift driver plate (12) is provided with shift fork (11);
Described master reduces gear (16) and main big gear wheel (18) engagement, the formation single reduction final drive of subtracting; Described master subtracts big gear wheel (18) and is connecting the flange on diff (19) housing, and the housing of diff (19) is located on housing (3) by bearing.
2. the power system assembly of a kind of two grades of electronlmobils according to claim 1, is characterized in that: described gearshift driver plate (12) comprises interior annulus and outer toroid, between described interior annulus and outer toroid, is connected by uniform muscle bar; In the pinion carrier (9) of answering with muscle pole pair, offer kidney slot, and described muscle bar is positioned at kidney slot, make interior annulus be positioned at the inner side of pinion carrier (9), outer toroid is positioned at the outside of pinion carrier (9), and the effect of the kidney slot driver plate (12) that is to make to shift gears is realized sway with respect to pinion carrier (9).
3. the power system assembly of a kind of two grades of electronlmobils according to claim 2, it is characterized in that: described shift fork (11) is semi-annular shape, the two ends of semicircular ring are respectively equipped with the fixture block of groove shape, and the fixture block at two ends is buckled in the outer toroid of gearshift driver plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410243816.7A CN104057821B (en) | 2014-06-04 | 2014-06-04 | A kind of power system assembly of two gear electronlmobils |
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| CN201410243816.7A CN104057821B (en) | 2014-06-04 | 2014-06-04 | A kind of power system assembly of two gear electronlmobils |
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| CN104057821A true CN104057821A (en) | 2014-09-24 |
| CN104057821B CN104057821B (en) | 2016-03-23 |
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Cited By (14)
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| CN105291826A (en) * | 2015-10-23 | 2016-02-03 | 华南理工大学 | Electric car drive device integrating automatic transmission main deceleration and differential speed |
| CN105620259A (en) * | 2014-11-24 | 2016-06-01 | 舍弗勒技术有限两合公司 | Electric axis driving system with speed change function and motor vehicle |
| CN105757210A (en) * | 2016-04-23 | 2016-07-13 | 中国第汽车股份有限公司 | Integrated driving device for two-level electric vehicle |
| CN105966235A (en) * | 2015-12-31 | 2016-09-28 | 比亚迪股份有限公司 | Electric drive axle assembly and vehicle with electric drive axle assembly |
| CN106671771A (en) * | 2015-11-09 | 2017-05-17 | 博格华纳公司 | Electric all-wheel drive with two-speed double reduction planetary |
| CN106828087A (en) * | 2017-01-13 | 2017-06-13 | 苏州绿控传动科技有限公司 | A kind of electric drive axle slowed down after single motor output |
| CN107379965A (en) * | 2017-08-21 | 2017-11-24 | 中能绿驰成都汽车科技有限公司 | A kind of 2AMT power drive systems of integrated form |
| CN108131427A (en) * | 2017-12-27 | 2018-06-08 | 合肥工业大学 | A kind of 2 speed automatic transmissions and shifting control system |
| CN108679176A (en) * | 2018-06-29 | 2018-10-19 | 昆山德拉特兰传动科技有限公司 | Novel two-gear transmission |
| CN108980337A (en) * | 2018-07-10 | 2018-12-11 | 绿传（北京）科技有限公司 | Two-speed automatic transmission and its control method |
| CN110017359A (en) * | 2019-04-23 | 2019-07-16 | 合肥工业大学 | Multi gear electric automobile gear device based on face gear |
| CN110039992A (en) * | 2018-01-15 | 2019-07-23 | 舍弗勒技术股份两合公司 | Bridge-drive system and the vehicles |
| CN110385976A (en) * | 2018-04-19 | 2019-10-29 | 舍弗勒技术股份两合公司 | Electric bridge |
| CN112714723A (en) * | 2018-09-19 | 2021-04-27 | 福伊特专利有限公司 | Hydraulic retarder with synchronizer |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105620259A (en) * | 2014-11-24 | 2016-06-01 | 舍弗勒技术有限两合公司 | Electric axis driving system with speed change function and motor vehicle |
| CN105620259B (en) * | 2014-11-24 | 2022-01-25 | 舍弗勒技术有限两合公司 | Electric shaft driving system with speed change function and motor vehicle |
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| CN106671771B (en) * | 2015-11-09 | 2021-12-21 | 博格华纳公司 | Electric all-wheel drive device with double-speed double-stage planetary gear reducer |
| CN106671771A (en) * | 2015-11-09 | 2017-05-17 | 博格华纳公司 | Electric all-wheel drive with two-speed double reduction planetary |
| CN105966235A (en) * | 2015-12-31 | 2016-09-28 | 比亚迪股份有限公司 | Electric drive axle assembly and vehicle with electric drive axle assembly |
| CN105757210A (en) * | 2016-04-23 | 2016-07-13 | 中国第汽车股份有限公司 | Integrated driving device for two-level electric vehicle |
| CN106828087A (en) * | 2017-01-13 | 2017-06-13 | 苏州绿控传动科技有限公司 | A kind of electric drive axle slowed down after single motor output |
| CN107379965A (en) * | 2017-08-21 | 2017-11-24 | 中能绿驰成都汽车科技有限公司 | A kind of 2AMT power drive systems of integrated form |
| CN108131427A (en) * | 2017-12-27 | 2018-06-08 | 合肥工业大学 | A kind of 2 speed automatic transmissions and shifting control system |
| CN110039992A (en) * | 2018-01-15 | 2019-07-23 | 舍弗勒技术股份两合公司 | Bridge-drive system and the vehicles |
| CN110385976A (en) * | 2018-04-19 | 2019-10-29 | 舍弗勒技术股份两合公司 | Electric bridge |
| CN108679176A (en) * | 2018-06-29 | 2018-10-19 | 昆山德拉特兰传动科技有限公司 | Novel two-gear transmission |
| CN108679176B (en) * | 2018-06-29 | 2023-10-24 | 昆山德拉特兰传动科技有限公司 | Two-speed transmission |
| CN108980337A (en) * | 2018-07-10 | 2018-12-11 | 绿传（北京）科技有限公司 | Two-speed automatic transmission and its control method |
| CN112714723A (en) * | 2018-09-19 | 2021-04-27 | 福伊特专利有限公司 | Hydraulic retarder with synchronizer |
| CN112714723B (en) * | 2018-09-19 | 2023-09-29 | 福伊特专利有限公司 | Hydrodynamic retarder with a synchronization device |
| CN110017359A (en) * | 2019-04-23 | 2019-07-16 | 合肥工业大学 | Multi gear electric automobile gear device based on face gear |
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