CN2586011Y - Power shunting vehicle stepless gear - Google Patents
Power shunting vehicle stepless gear Download PDFInfo
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- CN2586011Y CN2586011Y CN02286292U CN02286292U CN2586011Y CN 2586011 Y CN2586011 Y CN 2586011Y CN 02286292 U CN02286292 U CN 02286292U CN 02286292 U CN02286292 U CN 02286292U CN 2586011 Y CN2586011 Y CN 2586011Y
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- 239000000446 fuel Substances 0.000 abstract description 4
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- 238000004364 calculation method Methods 0.000 description 1
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- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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Abstract
The utility model relates to a power shunting type stepless speed changing device for a vehicle. The utility model comprises a clutch, a belt type stepless speed changing device with variable belt wheel radii, and two planetary gear trains with freedom degrees, wherein, an input shaft is connected with a sun wheel for the planetary gear trains and a driving pulley for the belt stepless speed changing device through an intermediate shaft, a friction clutch, a splined connection and a pair of speed increasing gear pairs. An electromagnetic clutch is arranged between a speed increasing gear and the driving pulley. An electromagnetic clutch is arranged between an output shaft and the intermediate shaft. A passive belt wheel is connected with a serrated ring of the planetary gear trains through a pair of speed reducing gear pairs. A planet carrier of the planetary gear trains is connected with the output shaft of a speed changing system. The outer side of the serrated ring is provided with an electromagnetic brake. The speed change regulation in a shifted gear and a stepless speed change gear of the utility model are both controlled by an electronic control unit. The utility model does not need manual operation. The safety and the comfort of vehicles can be enhanced, and the utility model has the advantages of high transmission efficiency and low fuel consumption.
Description
One, affiliated technical field
The utility model relates to a kind of mechanical transmission that is used for the transferring power of automobile, motorcycle, the automobile-used stepless speed changes devices of particularly a kind of power dividing type.
Two, background technique
Automobile-used speed variator system must adapt to vehicle in the different requirements that start to walk, quicken, travel and overcome under the different driving conditions such as different kinds of roads obstacle the driving wheel tractive force and the speed of a motor vehicle.In order to make full use of the power of motor, the emission performance that improves fuel economy and improve automobile, desirable automobile-used speed variator system should have the velocity ratio of stepless variation and can carry out optimized control.Different types of automobile-used stepless speed variator system all exists some problems, as use more fluid torque converter complex structure and manufacture cost height in the high gear car, makes its application area limited; And the Belt-type Adjustable-speed device in pedal motorcycle can not transmit bigger power, and starting performance is relatively poor.In addition, with respect to the gear transmission of routine, low its most outstanding defective especially of stepless speed variator system transmission efficiency, this has offset to a great extent owing to using stepless speed variator system is brought engine operation under the higher operating mode of efficient benefit.
In recent years, one class power dividing type stepless speed variator system (Power Split Continuously variabletransmission, abbreviation PSCVT) more attention and research have been obtained, this class stepless speed variator system is generally realized transferring power in parallel by the combination of speed change gear, part by the higher whole power of gear pair transmission of transmission efficiency, based on this design philosophy, infinite variation delivery system (Infinitely variabletransmission is called for short IVT) has abroad been proposed at present, the IVT system has also adopted belt speed change mechanism and planetary combination, the proposition of IVT mechanism also is to want to utilize the high pass efficient of gear train to improve the transmission efficiency of whole system, but structural configuration from the IVT system, power circuit is analyzed, IVT easily produces the power cycle phenomenon, the transmission efficiency of this system is lower than 0.84, and the IVT system does not solve vehicle in starting simultaneously, quickens, under the different operating modes such as run at high speed, vehicle changes this requirement of control to speed ratio.U.S. Xi Fujiya university has proposed a kind of design proposal of power dividing type stepless speed variator system, this scheme has adopted the outside to set up speed ratio adjusting gear device, the whole system complex structural designs does not adopt electric controller to finish vehicle working condition yet system's Transmission Ratio Control is changed this requirement.The structure of the utility model utility patent is at minicar and economy car, proposes a kind of design proposal of new power dividing type automative stepless speed-variation system, adopted ECU (Electrical Control Unit) to finish under the different operating modes of vehicle selection to the delivery system working state.
Three, summary of the invention
The purpose of this utility model is to provide a kind of and is mainly used in miniature and economy car and motorcycle, simplified operation, be easy to drive, improve the Security and the travelling comfort of vehicle, save fuel consume and reduce noxious gas emission, improve the automobile-used stepless speed changes devices of power dividing type of the energy-conservation and environmental-protecting performance of vehicle.
The technical solution that realizes the utility model purpose is: the automobile-used stepless speed changes devices of a kind of power dividing type, comprise clutch, the Belt-type Adjustable-speed device of variable pulley radius, the two degrees of freedom planetary gear train, it is characterized in that: input shaft passes through jack shaft, friction clutch, spline connects and a pair of speed increasing gear train, link to each other with the sun gear of planetary gear train and the driving pulley of band stepless speed changes devices, between overdrive gear and driving pulley, magnetic clutch is set, output shaft and jack shaft are provided with magnetic clutch between [7], passive belt wheel links to each other with the gear ring of planetary gear train by a pair of speed reducing gear pair, the planet carrier of planetary gear train links to each other with the output shaft of speed variator system, gear ring arranged outside electromagnetic brake.
Working principle of the present utility model is: the working condition of system has three kinds, and promptly low gear, middle retaining and high gear are used ECU (Electrical Control Unit) and controlled the gear selection with corresponding actuator, realize the conversion of gear by the different conditions of clutch and break.System works is in the low gear operating mode when vehicle launch, and gear ring is fixed, and power is directly exported through planet carrier then by the input of planetary gear train sun gear; When the speed of a motor vehicle was brought up to a threshold value, system entered middle retaining, just the work of stepless change retaining.At this moment, power is transmitted by two paths, and one is the sun gear that directly passes to planetary gear train, and another is the gear ring that is delivered to planetary gear train through the Belt-type Adjustable-speed device, and two strands of power synthesize one planet carrier output by planetary gear train again.System can change the realization stepless change by the velocity ratio of Belt-type Adjustable-speed device; When vehicle travels at a relatively high speed, in order to improve the transmission efficiency of speed variator system, make planetary gear train do as a whole rotation, the power of motor output directly by the output shaft output of speed variator system, is equivalent to the direct retaining of conventional multispeed manual transmission this moment.
The utility model compared with prior art, its remarkable advantage is: 1, the speed change in gearshift and the stepless change retaining is regulated by ECU (Electrical Control Unit) control, does not need manual operation, has improved the Security and the travelling comfort of vehicle; 2, transmit respectively by planetary gear train and Belt-type Adjustable-speed device owing to keeping off the operating mode transmission power, and other operating modes help improving transmission efficiency all by the planetary gear train transmission in stepless change; 3, be that research object has been carried out simulation calculation with a microbus, under the circulation of 15 operating modes, the 7.73L/100km that dress (was adorned with 5 retaining mechanical transmissions) from originally with the passenger vehicle fuel consumption of 100km of the automobile-used stepless speed variator system of power dividing type is reduced to 7.07L/km, and the Economy of vehicle has improved 8.6%.
Four, description of drawings
Accompanying drawing is the structural representation of the automobile-used stepless speed changes devices of power dividing type of the present utility model.
Five, embodiment
Below in conjunction with accompanying drawing the present invention is further described.
In conjunction with the accompanying drawings, the utility model mainly is made up of the Belt-type Adjustable-speed device 4 of one group of two degrees of freedom planetary gear train 5 and one group of variable pulley radius and friction clutch 2 etc.Input shaft 1 is by jack shaft 7, friction clutch 2, spline connection 3 and a pair of speed increasing gear train 8,9, link to each other with the sun gear 19 of planetary gear train and the driving pulley 25 of band stepless speed changes devices, between overdrive gear 9 and driving pulley 25, magnetic clutch 10 is set, passive belt wheel 24 is by a pair of speed reducing gear pair 14,15 link to each other with the gear ring 20 of planetary gear train, between output shaft 6 and the jack shaft 7 magnetic clutch 21 are set.Planetary gear train 5 is made up of a pair of speed reducing gear pair 14,15, sun gear 19, gear ring 20, planet wheel 17, and sun gear is fixed on the jack shaft 7, and gear ring 20 is enclosed within on the gear 15, and planet wheel is contained in the middle of sun gear and the gear ring.The Belt-type Adjustable-speed device is with 12 to constitute by driving pulley 25, passive belt wheel 24, high speed V, each belt wheel again can axially movable Moving plate 22,23 by a side and the price fixing 11,13 of opposite side form.Promote Moving plate 22,23 by control executing mechanism and move axially, the radius of clean-up that can continuously change belt wheel changes the velocity ratio of Belt-type Adjustable-speed device continuously, thereby gear ring 20 rotating speeds in the planetary gear train 5 are changed continuously.The planet carrier 18 of planetary gear train 5 links to each other with the output shaft 6 of speed variator system, gear ring 20 arranged outside electromagnetic brakes 16.
The working condition of system has three kinds, and promptly low gear, middle retaining and high gear are used ECU (Electrical Control Unit) and controlled the gear selection with corresponding actuator, realize the conversion of gear by the different conditions of clutch and break.It is as follows to be divided into three kinds of states during system works:
1, low gear (starting retaining) magnetic clutch 10 separates, and magnetic clutch 21 separates, and break 16 engages;
2, middle retaining (stepless change retaining) magnetic clutch 10 engages, and magnetic clutch 21 separates, and break 16 separates;
3, high gear (directly retaining) magnetic clutch 10 separates, and magnetic clutch 21 engages, and break 16 separates;
System works is in the low gear operating mode when vehicle launch, and power is by 19 inputs of planetary gear train 5 sun gears, then directly through planet carrier 18 outputs.
When the speed of a motor vehicle was brought up to a threshold value, system entered middle retaining, just the work of stepless change retaining.At this moment, power is transmitted by two paths, and one is the sun gear 19 that directly passes to planetary gear train 5, and another is to synthesize one planet carrier 18 outputs by planetary gear train 5 again through 20, two strands of power of gear ring that the Belt-type Adjustable-speed device is delivered to planetary gear train 5.System can change the realization stepless change by the velocity ratio of Belt-type Adjustable-speed device.Best velocity ratio when keeping off in the adjusting can adopt following dual mode: 1, be similar to the mechanical adjustment mode that is adopted in the Belt-type Adjustable-speed device of pedal motorcycle; 2, by ECU (Electrical Control Unit) control step motor, the Moving plate that promotes belt wheel is made axially movable automatically controlled regulative mode.
When vehicle travels at a relatively high speed, system enters high gear, and in order to improve the transmission efficiency of speed variator system, planetary gear train 5 is done as a whole rotation, the power of motor output directly by output shaft 6 outputs of speed change gear, is equivalent to the direct retaining of conventional multispeed manual transmission this moment.
In addition, use the reverse gear mechanism that also should set up routine of this arrangement vehicle, finish the counter-rotating of output shaft 6, realize reversing gear.
Claims (3)
1, the automobile-used stepless speed changes devices of a kind of power dividing type, comprise clutch [2], the Belt-type Adjustable-speed device [4] of variable pulley radius, two degrees of freedom planetary gear train [5], it is characterized in that: input shaft [1] is by jack shaft [7], friction clutch [2], spline connects [3] and a pair of speed increasing gear train [8,9], link to each other with the sun gear [19] of planetary gear train and the driving pulley [25] of band stepless speed changes devices, between overdrive gear [9] and driving pulley [25], magnetic clutch [10] is set, between output shaft [6] and the jack shaft [7] magnetic clutch [21] is set, passive belt wheel [24] is by a pair of speed reducing gear pair [14,15] link to each other with the gear ring [20] of planetary gear train [5], the planet carrier [18] of planetary gear train [5] links to each other gear ring [20] arranged outside electromagnetic brake [16] with the output shaft [6] of speed variator system.
2, the automobile-used stepless speed changes devices of power dividing type according to claim 1, it is characterized in that: Belt-type Adjustable-speed device [4] is made of driving pulley [25], passive belt wheel [24] and high speed V band [12], each belt wheel [25,24] again can axially movable Moving plate [22 by a side, 23] with the price fixing [11 of opposite side, 13] form, promote Moving plate [22,23] by control executing mechanism and move axially.
3, the automobile-used stepless speed changes devices of power dividing type according to claim 1 and 2, it is characterized in that: planetary gear train [5] is by a pair of speed reducing gear pair [14,15], sun gear [19], gear ring [20], planet wheel [17] are formed, sun gear is fixed on the jack shaft [7], gear ring [20] is enclosed within on the gear [15], and planet wheel is contained in the middle of sun gear and the gear ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02286292U CN2586011Y (en) | 2002-11-28 | 2002-11-28 | Power shunting vehicle stepless gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02286292U CN2586011Y (en) | 2002-11-28 | 2002-11-28 | Power shunting vehicle stepless gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2586011Y true CN2586011Y (en) | 2003-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02286292U Expired - Fee Related CN2586011Y (en) | 2002-11-28 | 2002-11-28 | Power shunting vehicle stepless gear |
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| Country | Link |
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| CN (1) | CN2586011Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956804A (en) * | 2009-07-15 | 2011-01-26 | 加特可株式会社 | Infinitely variable speed device for vehicles |
| CN102297255A (en) * | 2011-08-04 | 2011-12-28 | 湖南江麓容大车辆传动股份有限公司 | Automatic transmission assembly and automatic transmission vehicle |
| CN102883904A (en) * | 2010-04-06 | 2013-01-16 | 北极星工业有限公司 | Vehicle |
| CN105443710A (en) * | 2015-12-16 | 2016-03-30 | 山东农业大学 | Friction-ball power split type continuously variable transmission |
| CN105793616A (en) * | 2013-12-09 | 2016-07-20 | 舍弗勒技术股份两合公司 | CVT drive train |
| CN106438880A (en) * | 2016-11-14 | 2017-02-22 | 重庆青山工业有限责任公司 | Pure electric two-speed transmission |
| CN117553108A (en) * | 2024-01-12 | 2024-02-13 | 北京中科原动力科技有限公司 | Agricultural machinery gearbox and agricultural machinery |
-
2002
- 2002-11-28 CN CN02286292U patent/CN2586011Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956804A (en) * | 2009-07-15 | 2011-01-26 | 加特可株式会社 | Infinitely variable speed device for vehicles |
| CN102883904A (en) * | 2010-04-06 | 2013-01-16 | 北极星工业有限公司 | Vehicle |
| CN102883904B (en) * | 2010-04-06 | 2016-03-30 | 北极星工业有限公司 | Vehicle |
| CN102297255A (en) * | 2011-08-04 | 2011-12-28 | 湖南江麓容大车辆传动股份有限公司 | Automatic transmission assembly and automatic transmission vehicle |
| CN105793616A (en) * | 2013-12-09 | 2016-07-20 | 舍弗勒技术股份两合公司 | CVT drive train |
| CN105443710A (en) * | 2015-12-16 | 2016-03-30 | 山东农业大学 | Friction-ball power split type continuously variable transmission |
| CN106438880A (en) * | 2016-11-14 | 2017-02-22 | 重庆青山工业有限责任公司 | Pure electric two-speed transmission |
| CN117553108A (en) * | 2024-01-12 | 2024-02-13 | 北京中科原动力科技有限公司 | Agricultural machinery gearbox and agricultural machinery |
| CN117553108B (en) * | 2024-01-12 | 2024-04-30 | 北京中科原动力科技有限公司 | Agricultural machinery gearbox and agricultural machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031112 Termination date: 20111128 |