CN102996723A - Double-clutch automatic transmission for pure electromobile - Google Patents
Double-clutch automatic transmission for pure electromobile Download PDFInfo
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- CN102996723A CN102996723A CN201210519907XA CN201210519907A CN102996723A CN 102996723 A CN102996723 A CN 102996723A CN 201210519907X A CN201210519907X A CN 201210519907XA CN 201210519907 A CN201210519907 A CN 201210519907A CN 102996723 A CN102996723 A CN 102996723A
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Abstract
The invention provides a two-gear double-clutch type automatic transmission for a pure electromobile. The two-gear double-clutch type automatic transmission comprises a box body of the transmission, and is characterized in that the box body is internally provided with a first driving shaft and a second driving shaft which are parallel, wherein the first driving shaft and the second driving shaft are both of disconnecting type structures; middle disconnecting positions of the first driving shaft and the second driving shaft are independently provided with clutches; and a pair of constant-meshed gears are respectively arranged on the two sides of the first driving shaft and the second driving shaft, and each clutch is also connected with a clutch control device. The device provided by the invention can realize a gear shift process by only controlling the combination and separation of the clutches under the occasion of not needing a gear shift actuating mechanism, the power interruption time is effectively shortened, and dynamic property and economical efficiency of vehicles are greatly improved.
Description
Technical field
The invention belongs to the car transmissions technical field, relate in particular to a kind of two gear and dual-clutch formula automatic transmission for pure electric automobile.
Background technique
In the pure electric automobile transmission system, usually use retarder as transmission device, domestic present electric vehicle much be from before orthodox car remodeling, for reducing development cost, gearbox many times adopts the conventional manual five speed transmission, and it is fixed on a gear, use as the fixed speed ratio retarder, can't realize self shifter, because the restriction of the other sides such as road conditions, the rideability of automobile also is constantly to change, and then motor can not work in the best condition always, is the more satisfactory selection of pure electric automobile through proving two speed transmission.
At present, main transmission device (speed changer) has so several types of mechanical type manual speed-changer (MT), automatic mechanical transmission (AMT), hydraulic automatic speed variator (AT), CVT (continuously variable transmission) (CVT) in the car transmissions that occur on the market.
And above-mentioned several speed changer has the defective of self: MT can't realize self shifter, and dynamic interruption during the gearshift; The AMT volume is large, and assembly space is restricted, and shift quality is also relatively poor, and also dynamic interruption during the gearshift; AT is expensive, and transmission efficiency is also lower; The CVT price is also expensive, and transmission efficiency is low, and the torque of transmission is also limited, is not suitable for the vehicle of large discharge capacity high pulling torque.
From the present market angle of China, realize that at electric vehicle dual-clutch transmission is feasible, and have good development prospect.
Summary of the invention
Technical problem to be solved by this invention is the deficiency for above-mentioned existence, provide in a kind of situation that need not gear shifting actuating mechanism, the combination that only needs solenoidoperated cluthes can realize shift process with separating, and improves the double-clutch automatic gearbox that is used for pure electric automobile of power character and the Economy of vehicle.
The technical solution adopted for the present invention to solve the technical problems is:
The double-clutch automatic gearbox that is used for pure electric automobile, include the casing of speed changer, it is characterized in that: be provided with parallel the first transmission shaft and second driving shaft in the described casing, wherein the first transmission shaft and second driving shaft are the disconnecting type structure, and at the middle gap of the first transmission shaft and second driving shaft clutch is installed independently all, the both sides of described the first transmission shaft and second driving shaft, be separately installed with a pair of normal meshed gears, described clutch also is connected with clutch control device.
In such scheme, described the first transmission shaft is power input shaft, and second driving shaft is pto＝power take-off, and clutch is wet clutch, and the first transmission shaft, second driving shaft and two clutches all are arranged among the casing.
Described clutch also can be dry clutch, and casing separates from middle clutch position, and both sides respectively form enclosed construction, and clutch is arranged on outside the mission case, is covered by clutch housing.
In such scheme, described second driving shaft can both be power input shaft also, was again pto＝power take-off, and this moment, the first transmission shaft was the transmission transition axis.
In such scheme, described constant mesh gear is small one and large one gear engagement structure.
In such scheme, the meshing relation of described constant mesh gear is: in power intake one side, be the pinion of gearwheel and the second driving shaft of the first transmission shaft; In clutch end one side, it is the gearwheel engagement of small gear and the second driving shaft of the first transmission shaft.
In such scheme, described clutch control device is two clutches of independent control respectively, and clutch control device is by receiving from predefined gearshift mode instruction in the ECU (Electrical Control Unit), the separation of two clutches of control with engage.
The present invention adopts double clutch construction, its working principle is, the first transmission shaft and second driving shaft are disconnected respectively, carry out transmission by clutch, clutch separation when the first transmission shaft, the clutch of second driving shaft closes combination, power is passed to the first transmission shaft left-half from input end, then pass to second driving shaft by left side constant mesh gear, second driving shaft is directly exported power as output shaft, perhaps give the first transmission shaft right half part by the constant mesh gear on the right with transmission of power, make the first transmission shaft as output shaft.
When the clutch of the first transmission shaft closes clutch separation in conjunction with second driving shaft, power is passed to the first transmission shaft left-half from input end, then give the first transmission shaft right half part by the driven by clutches of the first transmission shaft, then directly export as output shaft, perhaps the constant mesh gear by the right to the second driving shaft right half part, makes second driving shaft as output shaft transmission of power.
The invention has the beneficial effects as follows:
1. the energy loss in the transmission process is very limited, has greatly improved the Economy of vehicle.
2. reaction is very sensitive, has good Driving.
3. vehicle does not have the sensation of power interruption in accelerating process, and shift quality might as well.
4. need not mechanical gearshift, only need solenoidoperated cluthes can realize gearshift, structure is relatively simple.
Description of drawings
Fig. 1 is the structure principle chart of the embodiment of the invention 1;
Fig. 2 is the structure principle chart of the embodiment of the invention 2;
Fig. 3 is the structure principle chart of the embodiment of the invention 3;
Fig. 4 is the structure principle chart of the embodiment of the invention 4;
Among the figure: 1. input end; 2. the gearwheel of the first transmission shaft; 3. second driving shaft;
4. the small gear of second driving shaft; 5. the clutch of second driving shaft; 6. the gearwheel of second driving shaft;
7. output terminal; 8. the clutch of the first transmission shaft; 9. the first transmission shaft; 10. the small gear of the first transmission shaft;
11. clutch control device.
Embodiment
The present invention is described in further detail below in conjunction with the embodiment in the accompanying drawing, but do not consist of any limitation of the invention.
The double-clutch automatic gearbox that is used for pure electric automobile, include the casing of speed changer, be provided with parallel the first transmission shaft 9 and second driving shaft 3 in the described casing, wherein the first transmission shaft 9 and second driving shaft 3 are the disconnecting type structure, and at the middle gap of the first transmission shaft 9 and second driving shaft 3 clutch is installed independently all, include the clutch 8 of the first transmission shaft and the clutch 3 of second driving shaft, described the first transmission, 9 and the left and right sides of second driving shaft 3, be separately installed with a pair of normal meshed gears, the clutch 8 of described the first transmission shaft and the clutch 3 of second driving shaft also are connected with clutch control device 11.
Embodiment 1:
In the present embodiment, the double-clutch automatic gearbox that is used for pure electric automobile as shown in Figure 1, its first transmission shaft 9 is power input shaft, second driving shaft 3 is pto＝power take-off, the clutch 8 of the first transmission shaft and the clutch 3 of second driving shaft are wet clutch, and the first transmission shaft 9, second driving shaft 3 and two clutches all are arranged among the casing.
Embodiment 2:
In the present embodiment, the double-clutch automatic gearbox that is used for pure electric automobile as shown in Figure 2, its first transmission shaft 9 is power input shaft, second driving shaft 3 is pto＝power take-off, the clutch 8 of the first transmission shaft and the clutch 3 of second driving shaft are dry clutch, and casing separates from middle clutch position, and both sides respectively form enclosed construction, the clutch 8 of the first transmission shaft and the clutch 3 of second driving shaft are arranged on outside the mission case, are covered by clutch housing.
Embodiment 3:
In the present embodiment, the double-clutch automatic gearbox that is used for pure electric automobile as shown in Figure 3, its first transmission shaft 9 is power input shaft, also be pto＝power take-off simultaneously, the clutch 8 of the first transmission shaft and the clutch 3 of second driving shaft are wet clutch, and the first transmission shaft 9, second driving shaft 3 and two clutches all are arranged among the casing.
Embodiment 4:
In the present embodiment, the double-clutch automatic gearbox that is used for pure electric automobile as shown in Figure 4, its first transmission shaft 9 is power input shaft, also be pto＝power take-off simultaneously, the clutch 8 of the first transmission shaft and the clutch 3 of second driving shaft are dry clutch, and casing separates from middle clutch position, and both sides respectively form enclosed construction, the clutch 8 of the first transmission shaft and the clutch 3 of second driving shaft are arranged on outside the mission case, are covered by clutch housing.
The working procedure of apparatus of the present invention is:
Be input end 1 for the first transmission shaft 9, second driving shaft 3 is output terminal 7: when ECU (Electrical Control Unit) according to vehicle driving-cycle, when clutch control device 11 is sent shifting commands, the clutch 8 of clutch control device 11 controls the first transmission shaft separates, the clutch 5 of second driving shaft closes the left-half of passing to the first transmission shaft 9 from input end 1 in conjunction with moving, then pass to second driving shaft 3 by the left side constant mesh gear, second driving shaft 3 is directly exported power as output terminal 7.When the clutch 8 of the first transmission shaft closes clutch 3 in conjunction with second driving shaft and separates, power is passed to the left-half of the first transmission shaft 9 from input end 1, then give the right half part of the first transmission shaft 9 by clutch 8 transmissions of the first transmission shaft, then the constant mesh gear that passes through the right side makes second driving shaft 3 as output terminal the right half part of transmission of power to second driving shaft 3.Can form like this two grades of different velocity ratios, realize the shift of transmission function.
Be input end 1 and output terminal 7 simultaneously for the first transmission shaft 9: when ECU (Electrical Control Unit) according to vehicle driving-cycle, when clutch control device 11 is sent shifting commands, the clutch 8 that closes device control gear 11 controls the first transmission shaft separates, the clutch 5 of second driving shaft is passed to the left-half of the first transmission shaft 9 from input end 1 in conjunction with power, then pass to second driving shaft 3 by the left side constant mesh gear, second driving shaft 3 passes to the right half part of the first transmission shaft 9 with power by the right side constant mesh gear, makes the right half part of the first transmission shaft 9 as output terminal.When the clutch 8 of the first transmission shaft separates in conjunction with the clutch 5 of second driving shaft, power is passed to the left-half of the first transmission shaft 9 from input end 1, then give the right half part of the first transmission shaft 9 by clutch 8 transmissions of the first transmission shaft, then the constant mesh gear that passes through the right side makes second driving shaft 3 as output terminal 7 right half part of transmission of power to second driving shaft 3.
The above, it only is the preferred embodiment of this invention, be not that any pro forma restriction is done in invention, every foundation technical spirit of the present invention all still is within the scope of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (8)
1. the double-clutch automatic gearbox that is used for pure electric automobile, include the casing of speed changer, it is characterized in that: be provided with parallel the first transmission shaft and second driving shaft in the described casing, wherein the first transmission shaft and second driving shaft are the disconnecting type structure, and at the middle gap of the first transmission shaft and second driving shaft clutch is installed independently all, the both sides of described the first transmission shaft and second driving shaft, be separately installed with a pair of normal meshed gears, described clutch also is connected with clutch control device.
2. the double-clutch automatic gearbox for pure electric automobile as claimed in claim 1, it is characterized in that: described the first transmission shaft is power input shaft, second driving shaft is pto＝power take-off.
3. the double-clutch automatic gearbox for pure electric automobile as claimed in claim 1 is characterized in that: described second driving shaft both had been power input shaft, be again pto＝power take-off, and the first transmission shaft is the transmission transition axis at this moment.
4. be used for as claimed in claim 2 or claim 3 the double-clutch automatic gearbox of pure electric automobile, it is characterized in that: clutch is wet clutch, and the first transmission shaft, second driving shaft and two clutches all are arranged among the casing.
5. the double-clutch automatic gearbox that is used for as claimed in claim 2 or claim 3 pure electric automobile, it is characterized in that: described clutch is dry clutch, casing from middle clutch position separately, both sides respectively form enclosed construction, clutch is arranged on outside the mission case, is covered by clutch housing.
6. the double-clutch automatic gearbox for pure electric automobile as claimed in claim 1, it is characterized in that: described constant mesh gear is small one and large one gear engagement structure.
7. the double-clutch automatic gearbox for pure electric automobile as claimed in claim 1, it is characterized in that: the meshing relation of described constant mesh gear is: in power intake one side, be the pinion of gearwheel and the second driving shaft of the first transmission shaft; In clutch end one side, it is the gearwheel engagement of small gear and the second driving shaft of the first transmission shaft.
8. the double-clutch automatic gearbox for pure electric automobile as claimed in claim 1 is characterized in that: two clutches of the independent control of described clutch control device difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519907XA CN102996723A (en) | 2012-12-07 | 2012-12-07 | Double-clutch automatic transmission for pure electromobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519907XA CN102996723A (en) | 2012-12-07 | 2012-12-07 | Double-clutch automatic transmission for pure electromobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996723A true CN102996723A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210519907XA Pending CN102996723A (en) | 2012-12-07 | 2012-12-07 | Double-clutch automatic transmission for pure electromobile |
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| Country | Link |
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| CN (1) | CN102996723A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392883A (en) * | 2011-11-03 | 2012-03-28 | 上海中科深江电动车辆有限公司 | Two-gear electric control mechanical type automatic gearbox used for electric automobile |
| CN103195879A (en) * | 2013-04-02 | 2013-07-10 | 天津市松正电动汽车技术股份有限公司 | Two speed transmission for hybrid power system |
| CN103867654A (en) * | 2014-04-04 | 2014-06-18 | 福建万润新能源科技有限公司 | Transmission special for new energy automobile |
| CN104595428A (en) * | 2014-12-26 | 2015-05-06 | 北京航空航天大学 | Automatic two-gear transformer for pure electric automobile |
| CN105972163A (en) * | 2016-07-07 | 2016-09-28 | 洛阳天迈传动科技有限公司 | Dual-clutch and twin-shift-gear automatic transmission |
| CN110626166A (en) * | 2019-09-29 | 2019-12-31 | 大连碧蓝节能环保科技有限公司 | Double-channel stepless speed change fuel automobile power system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3799002A (en) * | 1972-07-31 | 1974-03-26 | Eaton Corp | Transmission with resiliently loaded main shaft gears |
| JP3618397B2 (en) * | 1995-04-28 | 2005-02-09 | ヤンマー株式会社 | Marine speed reducer |
| JP4697155B2 (en) * | 2007-02-28 | 2011-06-08 | 井関農機株式会社 | Tractor transmission |
| CN102135160A (en) * | 2011-03-21 | 2011-07-27 | 浙江吉利汽车研究院有限公司 | Drive gear shift mechanism for electric automobile |
| CN102562961A (en) * | 2010-11-26 | 2012-07-11 | 格特拉克·福特传动***有限公司 | Compact Type Transmission |
-
2012
- 2012-12-07 CN CN201210519907XA patent/CN102996723A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3799002A (en) * | 1972-07-31 | 1974-03-26 | Eaton Corp | Transmission with resiliently loaded main shaft gears |
| JP3618397B2 (en) * | 1995-04-28 | 2005-02-09 | ヤンマー株式会社 | Marine speed reducer |
| JP4697155B2 (en) * | 2007-02-28 | 2011-06-08 | 井関農機株式会社 | Tractor transmission |
| CN102562961A (en) * | 2010-11-26 | 2012-07-11 | 格特拉克·福特传动***有限公司 | Compact Type Transmission |
| CN102135160A (en) * | 2011-03-21 | 2011-07-27 | 浙江吉利汽车研究院有限公司 | Drive gear shift mechanism for electric automobile |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392883A (en) * | 2011-11-03 | 2012-03-28 | 上海中科深江电动车辆有限公司 | Two-gear electric control mechanical type automatic gearbox used for electric automobile |
| CN103195879A (en) * | 2013-04-02 | 2013-07-10 | 天津市松正电动汽车技术股份有限公司 | Two speed transmission for hybrid power system |
| CN103867654A (en) * | 2014-04-04 | 2014-06-18 | 福建万润新能源科技有限公司 | Transmission special for new energy automobile |
| CN104595428A (en) * | 2014-12-26 | 2015-05-06 | 北京航空航天大学 | Automatic two-gear transformer for pure electric automobile |
| CN105972163A (en) * | 2016-07-07 | 2016-09-28 | 洛阳天迈传动科技有限公司 | Dual-clutch and twin-shift-gear automatic transmission |
| CN110626166A (en) * | 2019-09-29 | 2019-12-31 | 大连碧蓝节能环保科技有限公司 | Double-channel stepless speed change fuel automobile power system |
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Application publication date: 20130327 |