CN101574925A - Automobile double clutch type automatic gearbox transmission device - Google Patents
Automobile double clutch type automatic gearbox transmission device Download PDFInfo
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- CN101574925A CN101574925A CNA2009100670267A CN200910067026A CN101574925A CN 101574925 A CN101574925 A CN 101574925A CN A2009100670267 A CNA2009100670267 A CN A2009100670267A CN 200910067026 A CN200910067026 A CN 200910067026A CN 101574925 A CN101574925 A CN 101574925A
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Abstract
The invention relates to a new type automobile double clutch type automatic gearbox transmission device, belonging to important transmission parts of cars. The invention aims at solving the problem of affecting power property and economical property caused by single use of a reducer in the existing pure electric transmission system and improve the power property and economical property of the automobile, and realize gear switch by controlling the combination and separation of the clutch without need of selecting a gear switching device. The device mainly consists of a double clutch assembly, a front clutch executing mechanism and a rear clutch executing mechanism and a speed change gear box. The double clutch assembly comprises a front clutch and a rear clutch, which respectively join with the front clutch to separate the rear clutch, or join with the rear clutch to separate the front clutch by the control of the front clutch executing mechanism and the rear clutch executing mechanism; the front clutch is connected with a first gear; the rear clutch is connected with a second gear; the power is passed on to the gear box through the clutches and finally to a differential mechanism assembly to be output through a corresponding profile modified gear; and the shells of the double clutches are driven by a power source.
Description
Technical field
The present invention relates to a kind of modern automobile double-clutch automatic transmission (Double Clutch Transmission is called for short DCT) driving device, belong to the important drive disk assembly of car.
Technical background
In the pure electric automobile driving system, usually use retarder to do driving device, motor is worked under the optimum regime all the time, the change-speed box through proving two grades is that the driving system of reasonable pure electric automobile is selected.In the present car transmissions, its driving device mainly contains: 1. continuously variable automatic transmission (CVT), 2. automatic machincal transmission (AMT), 3. hydraulic automatic speed variator (AT), 4. mechanical type manual speed-changer (MT).
And above-mentioned driving device all has the shortcoming of himself.Scheme 1. driving efficiency is low, and the torque transmitted finite capacity costs an arm and a leg.Scheme 2. volume is big, can't realize power shfit, and shift quality is poor.Scheme 3. driving efficiency is low, costs an arm and a leg.4. scheme can't realize power shfit, can not realize autoshift, is a kind of pure electric automobile power drive of minimum grade.
And DCT has self distinctive advantage as a kind of brand new product, be other change speed gear box do not have, the advantage that it has AT and AMT concurrently, scantling of structure is compact more, its double clutch construction adapts to the requirement of power drive system more.Double clutch type automatic gearbox transmission device can make automobile have outstanding economical and dynamic property as the transmission device of pure electric automobile.
Double clutch type automatic gearbox transmission device is compared with other driving device and is mainly contained following advantage:
(1) driving efficiency height because this cover driving device is mechanical drive fully, has the highest driving efficiency.
(2) need not gearshift, realize gearshift by control clutch, simple in structure.
(3) can realize power shfit, autoshift, shift quality is good.
(4) torque capacity is big, and cost is low, because DCT is by traditional hand-operated transmission development fully, can produce at the hand gear box assembly line of China fully.
Can reduce the requirement to motor, be fit to the actual technical merit of China, therefore, the pure electric automobile that double clutch type automatic gearbox transmission device is housed is more prone to realize.
Summary of the invention
The objective of the invention is to: for solving the simple problem of using retarder to influence dynamic property and economy in the existing pure electric transmission system, a kind of automobile double clutch type automatic gearbox transmission device is proposed, to improve the dynamic property and the economy of automobile, and need not under the situation of gear choosing and gear shifting device, by the combination separation realization gear switch of control clutch.
Above-mentioned purpose of the present invention is achieved through the following technical solutions, and accompanying drawings is as follows:
This device is for being applicable to the double clutch type automatic gearbox transmission device of pure electric automobile, it mainly is made up of double-clutch assembly, front and back clutch actuating mechanism and speed-change gear box, propulsion source-the motor of pure electric automobile is connected with the double-clutch cap assembly by double-clutch butt flange 1, drives whole power-transfer clutch A end rotation.
A kind of automobile double clutch type automatic gearbox transmission device, mainly by the double-clutch assembly, front and back clutch actuating mechanism and speed-change gear box are formed, before described double-clutch assembly comprises, back power-transfer clutch, before the front and back power-transfer clutch passes through, back clutch actuating mechanism control engages front clutch respectively and separates the back power-transfer clutch, or disengaging of clutch front clutch after engaging, front clutch is connected with one grade of gear, back power-transfer clutch is connected with second speed gear, power via clutch transmits to gear case, through corresponding shifting gear power finally is delivered to the differential assembly outputting power, the double-clutch housing is driven by propulsion source.
Described front clutch comprises front clutch support disk 2, front diaphragm spring 3, front clutch platen 4, front clutch clutch drived disk assy 5, front clutch release rod 10.Described front clutch support disk 2 and front diaphragm spring 3 are being controlled separating and combination of front clutch clutch drived disk assy 5 and clutch driving case 6 under the effect of front clutch release rod 10.Described front clutch clutch drived disk assy 5 is connected with one grade of driving gear shaft 11 by spline, and 22 pitch wheel is housed respectively between two 19 of one grade of driving gear shaft 11 and the change-speed boxs and between two 19 of change-speed boxs and the output semiaxis, realize transmission of power.
Described back power-transfer clutch comprises back clutch driving disc 7, back clutch driven disc assembly 8, rear film spring 9, back withdrawal bearing 13.Described rear film spring 9 is being controlled separating and combination of back clutch driven disc assembly 8 and clutch driving case 6 under the effect of back withdrawal bearing 13.Described back clutch driven disc assembly 8 is connected with second gear driving gear shaft 12 by spline, and between two 19 of second gear driving gear shaft 12 and the change-speed boxs and two 19 of change-speed boxs and output semiaxis (pitch wheel is housed respectively between 22, realizes transmission of power.
Technique effect:
This device need not special gearshift, has also saved complicated mechanisms such as synchro, thereby can guarantee the continuity of transmission of power by the overlapping realization power shifting process in conjunction with speed and combination of two power-transfer clutchs of control.And simple in structure, the production inheritance is good, and cost is low.
Description of drawings
Accompanying drawing 2 is double-clutch assembly figure.
In the accompanying drawing 1: 1. double clutch adpting flange 2. front clutch separate 15. 1 grades of driving gears of platen 3. front diaphragm spring 4. front clutch platens, 5. front clutch clutch drived disk assy 6. clutch driving plates, 7. rear clutch compressing disc 8. rear clutch driven disc assembly 9. rear clutch diaphragm spring 10. front clutch release rods 11. 1 grades of driving gear shafts, 12. second gear driving gear shafts, 13. rear clutch release bearing 14. second gear driving gears, 16. front clutch separating mechanisms, 17. second gear driven gears, 18. first speed driven gear 19. speed changers, two axle 20. main reducing gear driving gears, 21. main reducing gear driven gears and differential assembly 22. output axle shafts 23 bevel housings
A. power input side B. transmission side
The specific embodiment
After the pure electric vehicle starting, for example vehicle operates in one grade now, and when the TCU transmission control unit found that the speed of a motor vehicle reaches 70km/h, TCU sent instruction, control front clutch actuating unit promotes front clutch push rod 10, thereby promote front clutch separation platen 2 front clutch is separated.Meanwhile, send clutch actuating mechanism behind the instruction manipulation, loosen back withdrawal bearing 13, make back power-transfer clutch combination, thereby finish shift process.
In the vehicle ' process, change-speed box has following several running state:
1 change-speed box is one grade of operation, then the transmission state before the gearshift is that front clutch is for bonding state, be that front clutch release rod 10 is in relaxation state, make front diaphragm spring 3 compress front clutch platen 4, the power of outputs such as propulsion source combustion engine or motor is passed to double-clutch housing 1 by the double-clutch butt flange, double-clutch housing 1 connects with clutch driving case 6, effect by front diaphragm spring 3, front clutch platen 4 and clutch driving case 6 are compressed, by friction force between power-transfer clutch transmission of power is arrived front clutch clutch drived disk assy 5, be connected by spline between one grade of driving gear shaft 11 of front clutch clutch drived disk assy 5 and change-speed box, power is input on one grade of driving gear shaft 11 of change speed gear box, one grade of driving gear shaft 11 of change-speed box and one grade of driving gear 15 are connected by spline, again through one to one shelves gear meshing, be delivered to change-speed box two 19, pass through the main reduction gear pair of engaged gears again, power is delivered on the output semiaxis 22 through differential assembly 21, final driven wheel makes vehicle travel at one grade.
2 when change-speed box when second gear moves, back clutch release mechanism is by loosening release thrust bearing 13, make rear film spring 9 compress back clutch driving disc 7, the power of outputs such as propulsion source combustion engine or motor is passed to the double-clutch housing by double-clutch butt flange 1, double-clutch housing and clutch driving case 6 connect, effect by rear film spring 9, back clutch driving disc 7 is compressed with clutch driving case 6, by friction force between power-transfer clutch transmission of power is arrived clutch driven disc assembly 8, be connected by spline between back clutch driven disc assembly 8 and the second gear driving gear shaft 12, power is input on the second gear driving gear shaft 12, change-speed box second gear driving gear 14 directly is made on the second gear input shaft, pass through the engagement of a pair of second speed gear again, be delivered to change-speed box two 19, pass through the main reduction gear pair of engaged gears again, power is delivered on the output semiaxis 22 through differential assembly 21, final driven wheel makes vehicle travel at second gear.
3 change-speed box TCU gather vehicle speed signal and accelerator open degree signal, and according to the moment of the speed of a motor vehicle and two parameter decisions of accelerator open degree gear switch, shift process is expressed as follows respectively:
1. upshift process, promptly change to the second gear process by one grade: front clutch actuating unit 16 promotes disengaging of clutch push rod 10 and promotes front clutch support disk 2, under the drive of front clutch support disk 2, make front diaphragm spring 3 no longer compress front clutch platen 4, thereby front clutch is separated, in this simultaneously, back clutch actuating mechanism loosens the thrust on the withdrawal bearing 13 of back, make back clutch-diaphragm spring 9 newly compress back clutch driving disc 7 again, thereby make the back clutch engagement, in this process, the power transmission gear of constant-mesh is right to becoming the second gear engaging gear by one grade of engaging gear.
2. downshift process, promptly change to one grade of process by second gear: the back clutch actuating mechanism promotes back withdrawal bearing 13 and promotes rear film spring 9, make rear film spring 9 no longer compress back clutch driving disc 7, thereby make the back disengaging of clutch, in this simultaneously, front clutch actuating unit 16 loosens the thrust on the front clutch release rod 10, make front clutch diaphragm spring 3 compress front clutch platen 4 again, thereby front clutch is engaged, in this process, the power transmission gear of constant-mesh is right to becoming one grade of engaging gear by the second gear engaging gear.
Claims (3)
1, a kind of automobile double clutch type automatic gearbox transmission device, mainly by the double-clutch assembly, front and back clutch actuating mechanism and speed-change gear box are formed, it is characterized in that, before described double-clutch assembly comprises, back power-transfer clutch, before the front and back power-transfer clutch passes through, back clutch actuating mechanism control engages front clutch respectively and separates the back power-transfer clutch, or disengaging of clutch front clutch after engaging, front clutch is connected with one grade of gear, back power-transfer clutch is connected with second speed gear, power via clutch transmits to gear case, through corresponding shifting gear power finally is delivered to the differential assembly outputting power, the double-clutch housing is driven by propulsion source.
2, a kind of automobile double clutch type automatic gearbox transmission device according to claim 1, it is characterized in that, described front clutch actuating unit comprises: front clutch separation platen (2) and front diaphragm spring (3) are under the effect of front clutch release rod (10), control front clutch clutch drived disk assy (5) separates and combination with clutch driving case (6), front clutch clutch drived disk assy (5) is connected with one grade of driving gear shaft (11) by spline, between one grade of driving gear shaft (11) and the change-speed box two (19) and between change-speed box two (19) and the output semiaxis (22) pitch wheel is housed respectively.
3, a kind of automobile double clutch type automatic gearbox transmission device according to claim 1, it is characterized in that, described back clutch actuating mechanism comprises: back clutch driving disc (7), back clutch driven disc assembly (8), rear film spring (9), back withdrawal bearing (13), described rear film spring (9) is under the effect of back withdrawal bearing (13), controlling separating and combination of back clutch driven disc assembly (8) and clutch driving case (6), described back clutch driven disc assembly (8) is connected with second gear driving gear shaft (12) by spline, and between second gear driving gear shaft (12) and the change-speed box two (19) and change-speed box two (19) and export between the semiaxis (22) pitch wheel is housed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100670267A CN101574925A (en) | 2009-05-31 | 2009-05-31 | Automobile double clutch type automatic gearbox transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100670267A CN101574925A (en) | 2009-05-31 | 2009-05-31 | Automobile double clutch type automatic gearbox transmission device |
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| CN101574925A true CN101574925A (en) | 2009-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100670267A Pending CN101574925A (en) | 2009-05-31 | 2009-05-31 | Automobile double clutch type automatic gearbox transmission device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720805A (en) * | 2011-03-30 | 2012-10-10 | 比亚迪股份有限公司 | Automatic transmission and vehicle including the automatic transmission |
| CN102720809A (en) * | 2011-03-30 | 2012-10-10 | 比亚迪股份有限公司 | A speed changer and a vehicle including the speed changer |
| CN102840282A (en) * | 2012-08-31 | 2012-12-26 | 重庆钟华机械有限责任公司 | Two-speed automatic transmission system for electrombile |
| CN103527661A (en) * | 2013-09-23 | 2014-01-22 | 吉林大学 | Double-clutch assembly of automobile dry double-clutch type automatic transmission |
| CN105835694A (en) * | 2014-12-18 | 2016-08-10 | 重庆隆旺机电有限责任公司 | Double-clutch rear axle assembly |
| CN111810600A (en) * | 2020-08-18 | 2020-10-23 | 广州艾可米汽车科技股份有限公司 | Diaphragm spring type continuously variable transmission |
| CN113154011A (en) * | 2020-12-30 | 2021-07-23 | 浙江工业大学 | Improved dry-type double-clutch two-gear automatic transmission |
-
2009
- 2009-05-31 CN CNA2009100670267A patent/CN101574925A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720805A (en) * | 2011-03-30 | 2012-10-10 | 比亚迪股份有限公司 | Automatic transmission and vehicle including the automatic transmission |
| CN102720809A (en) * | 2011-03-30 | 2012-10-10 | 比亚迪股份有限公司 | A speed changer and a vehicle including the speed changer |
| CN102720805B (en) * | 2011-03-30 | 2016-03-02 | 比亚迪股份有限公司 | A kind of automatic transmission and comprise the vehicle of this automatic transmission |
| CN102720809B (en) * | 2011-03-30 | 2016-03-02 | 比亚迪股份有限公司 | A kind of speed changer and comprise the vehicle of this speed changer |
| CN102840282A (en) * | 2012-08-31 | 2012-12-26 | 重庆钟华机械有限责任公司 | Two-speed automatic transmission system for electrombile |
| CN103527661A (en) * | 2013-09-23 | 2014-01-22 | 吉林大学 | Double-clutch assembly of automobile dry double-clutch type automatic transmission |
| CN105835694A (en) * | 2014-12-18 | 2016-08-10 | 重庆隆旺机电有限责任公司 | Double-clutch rear axle assembly |
| CN105835694B (en) * | 2014-12-18 | 2018-10-19 | 重庆隆旺机电有限责任公司 | Double clutch rear axle assys |
| CN111810600A (en) * | 2020-08-18 | 2020-10-23 | 广州艾可米汽车科技股份有限公司 | Diaphragm spring type continuously variable transmission |
| CN113154011A (en) * | 2020-12-30 | 2021-07-23 | 浙江工业大学 | Improved dry-type double-clutch two-gear automatic transmission |
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Application publication date: 20091111 |