CN103939539A - Electrically-driven planetary transmission - Google Patents
Electrically-driven planetary transmission Download PDFInfo
- Publication number
- CN103939539A CN103939539A CN201410180601.5A CN201410180601A CN103939539A CN 103939539 A CN103939539 A CN 103939539A CN 201410180601 A CN201410180601 A CN 201410180601A CN 103939539 A CN103939539 A CN 103939539A
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- Prior art keywords
- weinashi
- transmission
- planetary
- row
- gear
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/46—Gearings having only two central gears, connected by orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/202—Transmissions using gears with orbital motion characterised by the type of Ravigneaux set
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
An electrically-driven planetary transmission comprises a shell, an input component, an output component, a Ravigneaux combined planetary line, two torque transmission devices and four interaction components, wherein the input component and the output component are arranged on the left and the right respectively with the Ravigneaux combined planetary line as the center, the two torque transmission devices are brakes and are close to the shell, and all the components are located in the shell. The electrically-driven planetary transmission has the advantages of being simple and compact in structure, small in size, large in transmission ratio variation range, flexible, large in transmitted torque due to a large number of meshed teeth, and the like.
Description
Technical field
The present invention relates to a kind of electrically driven (operated) planetary transmission, it is a kind of epicyclic transmission of two gears, is mainly used in the automatic transmission of electro-motive vehicle, belongs to electric vehicle automatic transmission technical field.
Background technique
Growing along with electric vehicle, more and more higher for the requirement of transmission system performance.Because traditional fixed drive ratio speed changer requires high and can not take into account Economy and power character drive motor, so Development of EV multi-speed automatic transmission has become irresistible trend.Because epicyclic transmission has big speed ratio, volume is little, bearing capacity is large, stable working, therefore be widely used in automatic transmission.Therefore, the design of the arrangement of planet row becomes the primary prerequisite of automatic transmission exploitation.
Patent CN203098765U discloses a kind of arrangement that comprises the two groups of planetary gear set in front and back.In scheme, front sun gear is connected with motor output shaft, and the coaxial and rear sun gear of former and later two sun gears is fixed, and rear expert's star-wheel engages with rear sun gear and rear layman's star-wheel, and finally power is exported by rear gear ring.Two clutches are arranged on the gear ring on the planet carrier between front planet carrier and rear expert's star-wheel and between front ring gear and rear layman's star-wheel.Two breaks are respectively used to lock front ring gear and the front planet carrier of locking.
The disclosed scheme of patent CN202872557U comprises two single 2K-H planetary transmission systems, and the realization of primary speed-down is to rely on front-seat planetary transmission system, and front-seat gear ring is fixed, and power be passed to front-seat planet carrier output from front-seat sun gear.Two gears pass 9,0 moving system by rear rows of planetary gear and complete, the combination of row's sun gear and rear rows of planetary frame or separate after clutch C1 realizes, and break B1 realizes rear ring gear with the fixing of casing and separates, finally by rear rows of planetary frame outputting power.
The open scheme of patent CN201795003U is as follows: input shaft drives planet carrier by first clutch, and drives sun gear by second clutch, the output shaft of one termination motor.Meanwhile, output gear and planet carrier are coaxially affixed, and it drives the driving gear of differential mechanism by jack shaft, and gear ring is affixed with gearbox case.
Electric car automatic speed transmission technology starts to walk soon, but volume is little, compact structure and improve the feature such as electric efficiency and make its birth have necessity.Can find out from current research, the planet row arrangement of electric vehicle two-shift automatic speed variator also has very large research space.
Summary of the invention
(1) object
The object of the present invention is to provide a kind of electrically driven (operated) planetary transmission, it has overcome the deficiencies in the prior art, is a kind of compact structure, is convenient to two shift transmissions that electro-motive vehicle travels.
(2) technological scheme
The present invention is a kind of electrically driven (operated) planetary transmission, and it has comprised housing, input link, output link, La Weinashi compound planetary row, two torque transmitters, four interconnecting components.Wherein, the position relationship between them is: centered by La Weinashi compound planetary row, and the input link that left is transmission system, right-hand is the output link of transmission system, two torque transmitters are break, side by side near housing.Above-mentioned each member is all positioned at housing.
Described housing is the shell of planetary transmission, is fixed, and for holding and support other members of speed changer, its shape and structure, because layout determines, does not exist fixed form.
Described input link is the input shaft of planetary transmission, by this axle, the output speed of motor and torque is input to planetary transmission, and input link is unique, in La Weinashi compound planetary row front.
Described output link is the output shaft of planetary transmission, by this axle, the rotating speed of planetary transmission and moment of torsion is exported to follow-up transmission shaft, and output link is unique, in La Weinashi compound planetary row rear.
Described La Weinashi compound planetary row is a kind of planetary gears of combined type, by a front sun gear, and a rear sun gear, a long planet wheel, a short planet wheel, gear ring and planet carrier composition; Front sun gear and long planet wheel outer gearing, long planet wheel engages with gear ring and short planet wheel respectively, and short planet wheel engages with rear sun gear, and long planet wheel and short planet wheel share a planet carrier.
Described the first interconnecting component is coupling shaft, and this axle is fixed together La Weinashi compound planetary row's rear sun gear and input shaft.
Described the second interconnecting component is coupling shaft, and this axle is fixed together La Weinashi compound planetary row's gear ring and output shaft.
Described the 3rd interconnecting component is coupling shaft, and this axle is fixedly connected with La Weinashi compound planetary row's planet carrier with the first torque transmitter.
Described the 4th interconnecting component is coupling shaft, and this axle is fixedly connected with La Weinashi compound planetary row's front sun gear with the second torque transmitter.
Two described torque transmitters are all wet friction joint element, by the joint of different torque transmitters, two members of correspondence are linked together.Two optionally lockings of torque transmitter, by certain two temporary coupling together of member.
This optionally locking of the first torque transmitter, couples together La Weinashi compound planetary row's planet carrier and housing.
This optionally locking of the second torque transmitter, couples together La Weinashi compound planetary row's front sun gear and housing.
Wherein, the transmission scheme relating in the present invention produces two forward gears by controlling two torque transmitters, realizes automatic transmission function.
Wherein, above-mentioned La Weinashi compound planetary row is to be composited by a simple negative sign planetary gear set and a positive sign planetary gear set, and two planet rows share a planet carrier and gear ring, and wherein negative sign planet row is front, positive sign planet row is rear, and long planet wheel engages with short planet wheel; In above-mentioned La Weinashi compound planetary row, related gear is all helical teeth profile of tooth.
Wherein, the first, the second torque transmitter is wet friction chip break.The size dimension of break, need to calculate and obtain according to mated motor output torque, and the present invention does not limit concrete applicable model and specification.
Structural principle of the present invention and the brief introduction of work overview are as follows: when all torque transmitters are in separated state, this planetary gears degrees of freedom is 2, between input link and output link, there is no transmission of power; When the first torque transmitter is during in blocking, La Weinashi compound planetary rows of planetary frame is fixed, this planetary gears degrees of freedom reduces to 1, between input output member, has transmission of power, and the ratio of input link and output link rotating speed is a gear velocity ratio.
When the second torque transmitter is during in blocking, La Weinashi compound planetary row's front sun gear is fixed, this planetary gears degrees of freedom reduces to 1, between input output member, has transmission of power, and the ratio of input link and output link rotating speed is two gear velocity ratios.
(3) advantage
This planetary gears of La Weinashi its have simple in structure and compact, size is little, velocity ratio excursion is large, flexible and changeableization, the intermeshing number of teeth are more makes the advantages such as the moment of torsion that transmits is large.
Brief description of the drawings
Fig. 1 is the embodiment structural representation according to electric drive planetary transmission of the present invention;
Reference character
0 housing; 1 first interconnecting component; 2 second interconnecting components; 3 the 4th interconnecting components; 4 the 3rd interconnecting components;
Sun gear before S1; S2 rear sun gear; R1 gear ring; A planet carrier; IN input shaft; OUT output shaft;
B1 the first torque transmitter; B2 the second torque transmitter; The long planet wheel of G1; The short planet wheel of G2;
P1 La Weinashi compound planetary row.
Embodiment
In following illustrative in nature only for exemplary and be not intended to limit absolutely application of the present invention or use.
A kind of electrically driven (operated) planetary transmission of the present invention, it is a kind of two gear electrically driven speed change devices of planetary gear construction, it has comprised housing 0; Input link; Output link; La Weinashi compound planetary row P1; The first interconnecting component 1; The second interconnecting component 2; The 3rd interconnecting component 4; The 4th interconnecting component 3; The first torque transmitter B1; The second torque transmitter B2.Relation between them is: centered by La Weinashi compound planetary row P1, left is that the input link of transmission system is input shaft IN, the right-hand output link for power train is output shaft OUT, two torque transmitters are break, near housing 0, above-mentioned each member is all positioned at housing 0 side by side.
First, of the present invention two mode of executions that keep off electrically driven speed change devices have permanent mechanical connection setting on La Weinashi compound planetary row.
First, with reference to figure 1, this speed changer comprises input shaft IN, La Weinashi compound planetary row P1, housing 0, output shaft OUT, the first torque transmitter B1, the second torque transmitter B2, the first interconnecting component 1, the second interconnecting component 2, the three interconnecting component 4, the four interconnecting components 3, in embodiments of the present invention, La Weinashi compound planetary row P1 is as described below.
La Weinashi compound planetary row P1, has comprised front sun gear S1, long planet wheel G1, gear ring R1, rear sun gear S2, short planet wheel G2, planet carrier A.Rear sun gear S2 is fixedly connected with input shaft IN by the first interconnecting component 1; Gear ring R1 is fixedly connected with output shaft OUT by the second interconnecting component 2; Planet carrier A is fixedly linked by the 3rd interconnecting component 4 and the first torque transmitter B1; Front sun gear S1 is fixedly linked by the 4th interconnecting component 3 and the second torque transmitter B2.
The first torque transmitter B1 optionally connects La Weinashi compound planetary row's planet carrier A with case of transmission 0.The second torque transmitter B2 optionally connects La Weinashi compound planetary row's front sun gear S1 with case of transmission 0.
What input shaft IN continued is connected to motor (not shown).Output shaft OUT is connected to the final (not shown) such as gear unit or transfer case.
The gear shift operation of first shifting gears logic diagram and respectively keeping off velocity ratio and illustrate this mode of execution with reference to rear list one.This speed changer can be delivered to output shaft OUT by moment of torsion from input shaft IN with two forward gear speed ratios or torque ratio.By the some combinations in torque transmitter (shifting element), can obtain velocity ratio or the torque ratio of each forward gear.Table one shows the combination truth table that is activated or engages the torque-transmitting mechanisms of realizing shifting state.As shown in table one, "×" has represented that this concrete torque transmitter (shifting element) is engaged to realize expectation shifting state.Wherein La Weinashi compound planetary row P1 can regard as by rear sun gear S2, shor planet gear G2, long planet gear G1, the negative sign planetary gear set that gear ring R1 composition fixed drive ratio is-3.20 and by front sun gear S1, long planet gear G1, the positive sign planetary gear set that planet carrier A and gear ring R1 composition velocity ratio are 3.86 forms jointly, the gear ratio value of the each gear of speed changer shown in the table one of asking.
Operation to two shift transmissions and the above stated specification of shifting state hypothesis: first, be that all shifting elements of specifically mentioning all depart from given shifting state; Secondly,, during the gearshift between adjacent shifting state (changing shifting state), the shifting element all engaging under two shifting state will keep jointing state.
Of the present inventionly say that face is only exemplary in essence, and do not depart from the distortion that the present invention makes it and be intended to comprise within the scope of the invention.This modification is considered to without departing from the spirit and scope of the present invention.
Transmission scheme gear ratio calculation method is as follows:
One gear gear ratio calculation formula: i1=i02
Two gear gear ratio calculation formula i2=(i02-i01)/(1-i01)
In formula, symbol description is as follows:
I1 mono-keeps off velocity ratio
I2 bis-keeps off velocity ratio
I01 La Weinashi compound planetary is arranged equivalent negative sign planetary gear set fixed drive ratio
I02 La Weinashi compound planetary is arranged equivalent positive sign planetary gear set fixed drive ratio
Table one
| ? | B1 | B2 | Velocity ratio |
| 1 | X | ? | 3.86 |
| 2 | ? | X | 1.68 |
Claims (4)
1. an electrically driven (operated) planetary transmission, is characterized in that: it has comprised housing, input link, output link, La Weinashi compound planetary row, two torque transmitters and four interconnecting components; Centered by La Weinashi compound planetary row, the input link that left is transmission system, right-hand is the output link of transmission system, and two torque transmitters are break, and near housing, above-mentioned each member is all positioned at housing side by side;
Described housing is the shell of planetary transmission, is fixed, and for holding and support other members of speed changer, its shape and structure is determined because of layout;
Described input link is the input shaft of planetary transmission, by this axle, the output speed of motor and torque is input to planetary transmission, and it is in La Weinashi compound planetary row front;
Described output link is the output shaft of planetary transmission, by this axle, the rotating speed of planetary transmission and moment of torsion is exported to follow-up transmission shaft, and it is in La Weinashi compound planetary row rear;
Described La Weinashi compound planetary row is a kind of planetary gears of combined type, by a front sun gear, and a rear sun gear, a long planet wheel, a short planet wheel, gear ring and planet carrier composition; Front sun gear and long planet wheel outer gearing, long planet wheel engages with gear ring and short planet wheel respectively, and short planet wheel engages with rear sun gear, and long planet wheel and short planet wheel share a planet carrier;
Described the first interconnecting component is coupling shaft, and this axle is fixed together La Weinashi compound planetary row's rear sun gear and input shaft;
Described the second interconnecting component is coupling shaft, and this axle is fixed together La Weinashi compound planetary row's gear ring and output shaft;
Described the 3rd interconnecting component is coupling shaft, and this axle is fixedly connected with La Weinashi compound planetary row's planet carrier with the first torque transmitter;
Described the 4th interconnecting component is coupling shaft, and this axle is fixedly connected with La Weinashi compound planetary row's front sun gear with the second torque transmitter;
Two described torque transmitters are all wet friction joint element, by the joint of different torque transmitters, two members of correspondence are linked together;
This optionally locking of the first torque transmitter, couples together La Weinashi compound planetary row's planet carrier and housing;
This optionally locking of the second torque transmitter, couples together La Weinashi compound planetary row's front sun gear and housing.
2. the electrically driven (operated) planetary transmission of one according to claim 1, it is characterized in that: this La Weinashi compound planetary row is to be composited by a negative sign planetary gear set and a positive sign planetary gear set, two planet rows share a planet carrier and gear ring, wherein negative sign planet row is front, positive sign planet row is rear, and long planet wheel engages with short planet wheel; In above-mentioned La Weinashi compound planetary row, related gear is all helical teeth profile of tooth.
3. the electrically driven (operated) planetary transmission of one according to claim 1, is characterized in that: the first, the second torque transmitter is wet friction chip break, and the size dimension of break calculates and obtains according to mated motor output torque.
4. the electrically driven (operated) planetary transmission of one according to claim 1, is characterized in that: this transmission scheme produces two forward gears by controlling two torque transmitters, realizes automatic transmission function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180601.5A CN103939539A (en) | 2014-04-30 | 2014-04-30 | Electrically-driven planetary transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180601.5A CN103939539A (en) | 2014-04-30 | 2014-04-30 | Electrically-driven planetary transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103939539A true CN103939539A (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410180601.5A Pending CN103939539A (en) | 2014-04-30 | 2014-04-30 | Electrically-driven planetary transmission |
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| CN (1) | CN103939539A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939929A (en) * | 2017-05-19 | 2017-07-11 | 福建万润新能源科技有限公司 | A kind of shift transmission of mono-tooth ring dry friction external control three |
| CN106979286A (en) * | 2017-05-19 | 2017-07-25 | 福建万润新能源科技有限公司 | A kind of dry friction external control four-speed gear shift device |
| CN107100966A (en) * | 2016-02-23 | 2017-08-29 | 舍弗勒技术股份两合公司 | The planetary gear manual transmission of high transmission ratio |
| CN109185404A (en) * | 2018-11-20 | 2019-01-11 | 北京航空航天大学 | Electronic automobile-used multiple-shift automatic transmission device |
| CN110626167A (en) * | 2019-10-16 | 2019-12-31 | 科力远混合动力技术有限公司 | Two-gear speed reducer of pure electric vehicle |
| CN110725910A (en) * | 2018-07-17 | 2020-01-24 | 湖南中车时代电动汽车股份有限公司 | New energy commercial vehicle EAT derailleur gear drive structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006183760A (en) * | 2004-12-27 | 2006-07-13 | Nissan Motor Co Ltd | Transmission for hybrid automobile |
| US20070173373A1 (en) * | 2006-01-11 | 2007-07-26 | Aisin Aw Co., Ltd. | Hydraulic control apparatus of transmission |
| CN102182801A (en) * | 2011-05-19 | 2011-09-14 | 苏州安远新能源动力有限公司 | Two-gear automatic transmission of planet wheel type electric automobile |
| CN102529681A (en) * | 2011-11-25 | 2012-07-04 | 天津中德传动有限公司 | Efficient energy-saving environment-friendly hybrid transmission mechanism |
| CN203098765U (en) * | 2012-12-31 | 2013-07-31 | 长城汽车股份有限公司 | Two-gear speed changer of electric vehicle |
| CN203926645U (en) * | 2014-04-30 | 2014-11-05 | 北京航空航天大学 | A kind of electrically driven (operated) planetary transmission |
-
2014
- 2014-04-30 CN CN201410180601.5A patent/CN103939539A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006183760A (en) * | 2004-12-27 | 2006-07-13 | Nissan Motor Co Ltd | Transmission for hybrid automobile |
| US20070173373A1 (en) * | 2006-01-11 | 2007-07-26 | Aisin Aw Co., Ltd. | Hydraulic control apparatus of transmission |
| CN102182801A (en) * | 2011-05-19 | 2011-09-14 | 苏州安远新能源动力有限公司 | Two-gear automatic transmission of planet wheel type electric automobile |
| CN102529681A (en) * | 2011-11-25 | 2012-07-04 | 天津中德传动有限公司 | Efficient energy-saving environment-friendly hybrid transmission mechanism |
| CN203098765U (en) * | 2012-12-31 | 2013-07-31 | 长城汽车股份有限公司 | Two-gear speed changer of electric vehicle |
| CN203926645U (en) * | 2014-04-30 | 2014-11-05 | 北京航空航天大学 | A kind of electrically driven (operated) planetary transmission |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100966A (en) * | 2016-02-23 | 2017-08-29 | 舍弗勒技术股份两合公司 | The planetary gear manual transmission of high transmission ratio |
| CN107100966B (en) * | 2016-02-23 | 2021-12-24 | 舍弗勒技术股份两合公司 | High ratio planetary gear shifting transmission |
| CN106939929A (en) * | 2017-05-19 | 2017-07-11 | 福建万润新能源科技有限公司 | A kind of shift transmission of mono-tooth ring dry friction external control three |
| CN106979286A (en) * | 2017-05-19 | 2017-07-25 | 福建万润新能源科技有限公司 | A kind of dry friction external control four-speed gear shift device |
| CN106979286B (en) * | 2017-05-19 | 2023-10-03 | 福建万润新能源科技有限公司 | Dry friction external control four-gear transmission |
| CN110725910A (en) * | 2018-07-17 | 2020-01-24 | 湖南中车时代电动汽车股份有限公司 | New energy commercial vehicle EAT derailleur gear drive structure |
| CN110725910B (en) * | 2018-07-17 | 2022-03-29 | 湖南中车时代电动汽车股份有限公司 | New energy commercial vehicle EAT derailleur gear drive structure |
| CN109185404A (en) * | 2018-11-20 | 2019-01-11 | 北京航空航天大学 | Electronic automobile-used multiple-shift automatic transmission device |
| CN109185404B (en) * | 2018-11-20 | 2020-12-11 | 北京航空航天大学 | Multi-gear automatic transmission device for electric vehicle |
| CN110626167A (en) * | 2019-10-16 | 2019-12-31 | 科力远混合动力技术有限公司 | Two-gear speed reducer of pure electric vehicle |
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Application publication date: 20140723 |
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