CN109707807A - Seven gear planetary automatic transmissions - Google Patents
Seven gear planetary automatic transmissions Download PDFInfo
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- CN109707807A CN109707807A CN201811577926.1A CN201811577926A CN109707807A CN 109707807 A CN109707807 A CN 109707807A CN 201811577926 A CN201811577926 A CN 201811577926A CN 109707807 A CN109707807 A CN 109707807A
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- connecting elements
- planet row
- planet
- clutch
- brake
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Abstract
The invention discloses one kind seven to keep off planetary automatic transmission.The speed changer includes planet row, be mounted on both ends respectively with input shaft, export axis connection input link and output link, connecting elements, brake and clutch, there are three the planet rows, there are four connecting elements, there are three brakes, clutch have two.Automatic transmission of the invention realizes that seven forward gears, gear range are wide using the scheme of three planet rows, three brakes and two clutches.The present invention is easy to implement cramped construction, reduces the volume and weight of automatic transmission.
Description
Technical field
The invention belongs to system of vehicle transmission technical fields, and in particular to the planetary automatic transmission that vehicle uses.
Background technique
As vehicle planetary automatic transmission, the power such as internal combustion engine reach planetary automatic transmission through fluid torque-converter
Input shaft exports power from output shaft, and reach left and right driving wheel through differential mechanism after current shift speed change, and speed changer
It is most of to be made of multiple planet rows, brake and clutch.Currently, the vehicle of mainstream has with seven gear planetary automatic transmissions
Four planet rows, volume and weight is all very big, for this purpose, need to find a kind of suitable with current advanced planetary automatic transmission performance
Three planet rows seven gear planetary automatic transmissions.
Summary of the invention
In view of this, the present invention provides one kind seven to keep off planetary automatic transmission, which utilizes three planets
Row, two clutches and three brakes realize seven forward gears and one reverses gear, and gear range is big, and volume and weight is equal
It is small, the requirement of heavy vehicle can be met.
Seven gear planetary automatic transmissions, including three planet rows, be mounted on both ends respectively with input shaft, output axis connection
Input link and output link, four connecting elements, three brakes and two clutches；The planet row is respectively planet row
PGS1, planet row PGS2 and planet row PGS3；Connecting elements is respectively connecting elements I, connecting elements II, connecting elements III and connects
Connection member IV；Brake is respectively brake B1, brake B2 and brake B3；Clutch is respectively clutch C1 and clutch
C2；
Sun gear S1, planet carrier CA1 and the gear ring R1 of the planet row PGS1 respectively with input link, connecting elements II and
Connecting elements III connects；
Sun gear S2, planet carrier CA2 and the gear ring R2 of the planet row PGS2 respectively with connecting elements IV, output link and
Connecting elements I connects；
Sun gear S3, planet carrier CA3 and the gear ring R3 of the planet row PGS3 respectively with connecting elements III, connecting elements I
It is connected with connecting elements IV；
The interior hub of the sun gear S1 and clutch C1 of the input link connection planet row PGS1；
The planet carrier CA2 of the output link connection planet row PGS2；
The connecting elements II connects the planet carrier CA3 and brake B1 of the gear ring R2 of planet row PGS2, planet row PGS3
Interior hub；
The connecting elements II connects the interior of the planet carrier CA1 of planet row PGS1, the interior hub of brake B2 and clutch C2
Hub；
The connecting elements III connects the sun gear S3's and brake B3 of the gear ring R1 of planet row PGS1, planet row PGS3
Interior hub；
The connecting elements IV connects the sun gear S2 of planet row PGS2, the gear ring R3 of planet row PGS3, clutch C1
The outer hub of outer hub and clutch C2；
Described brake B1, B2 and B3 are respectively used to brake attachment member I, connecting elements II and connecting elements III；
The clutch C1 connection input link and connecting elements IV；
The clutch C2 connection connecting elements II and connecting elements IV.
Further, the planet row PGS1, planet row PGS2 and planet row PGS3 are single star planet row.
Further, the planet row PGS1, planet row PGS2 and planet row PGS3 include sun gear, planet carrier and tooth
Circle；The input shaft is the turbine wheel shaft of fluid torque-converter, and the power of engine is reached planetary automatic speed-changing through fluid torque-converter
Device；The brake and clutch are multiple-piece friction manipulation part, are pressurizeed and are combined using hydraulic oil driving piston.
The utility model has the advantages that
The present invention realizes seven forward gears, transmission using the scheme of three planet rows, three brakes and two clutches
It can reach 15.312 than range.The k value of three planet rows is easy to implement cramped construction in 1.5~2.0 ranges, reduces certainly
The volume and weight of dynamic speed changer.
Detailed description of the invention
Each member connection schematic diagrames of planetary automatic transmission are kept off for of the invention seven,
PGS1~PGS3 is three planet rows in figure, and S1~S3 is three sun gears, and CA1~CA3 is three planet carriers, R1
~R3 is three gear rings, and B1~B3 is three brakes, and C1~C2 is two clutches；
1- input link, 2- output link, 3- connecting elements I, 4- connecting elements II, III 6- connecting elements of 5- connecting elements
Ⅳ。
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Seven gears planetary automatic transmission provided by the invention is suitable for vehicle drive system.Wherein, each planet row is by suitable
Sequence arranges, and is connected between each planet row using connecting elements, and input shaft is connected with input link 1, generally fluid torque-converter
Turbine wheel shaft, for the power of engine to be reached planetary automatic transmission through fluid torque-converter.Output shaft and output link 2 connect
It connects, power is reached by forward and backward bridge or left and right driving wheel by transfer gear or differential mechanism.The planetary automatic transmission is relative to rotation
Turn center be it is full symmetric, the lower half portion of rotation center is omitted in Fig. 1, is no longer explained when being described below.
Seven gears planetary automatic transmissions as shown in Figure 1, including planet row, be mounted on both ends respectively with input shaft, output
Input link 1, the output link 2 of axis connection, connecting elements, brake and clutch.There are three the planet rows, respectively goes
Star arranges PGS1, planet row PGS2 and planet row PGS3；There are four the connecting elements, respectively connecting elements I 3, connecting elements
II 4, connecting elements III 5 and connecting elements IV 6；There are three the brakes, respectively brake B1, brake B2 and brake
B3；The clutch has two, respectively clutch C1 and clutch C2；
Each planet row respectively includes sun gear, planet carrier and gear ring.
Sun gear S1, planet carrier CA1 and the gear ring R1 of the planet row PGS1 respectively with input link 1, connecting elements II 4
It is connected with connecting elements III 5；
Sun gear S2, planet carrier CA2 and the gear ring R2 of the planet row PGS2 respectively with connecting elements IV 6, output link 2
It is connected with connecting elements I 3；
Sun gear S3, planet carrier CA3 and the gear ring R3 of the planet row PGS3 respectively with connecting elements III 5, connecting elements I
3 and connecting elements IV 6 connect；
The input link 1 connects the interior hub of the sun gear S1 and clutch C1 of planet row PGS1；
The output link 2 connects the planet carrier CA2 of planet row PGS2；
The connecting elements I 3 connects the planet carrier CA3 and brake B1 of the gear ring R2 of planet row PGS2, planet row PGS3
Interior hub；
The connecting elements II 4 connects the interior of the planet carrier CA1 of planet row PGS1, the interior hub of brake B2 and clutch C2
Hub；
The connecting elements III 5 connects the sun gear S3 and brake B3 of the gear ring R1 of planet row PGS1, planet row PGS3
Interior hub；
The connecting elements IV 6 connects the sun gear S2 of planet row PGS2, the gear ring R3 of planet row PGS3, clutch C1
The outer hub of outer hub and clutch C2；
The brake B1 is used for brake attachment member I 3；
The brake B2 is used for brake attachment member II 4；
The brake B3 is used for brake attachment member III 5；
The clutch C1 connection input link 1 and connecting elements IV 6；
The clutch C2 connection connecting elements II 4 and connecting elements IV 6.
The planet row PGS1, planet row PGS2 and planet row PGS3 are single star planet row.
Brake B1~B3, clutch C1 and C2 are generally multiple-piece friction manipulation part, using hydraulic oil drive piston into
Row pressurization.The manipulation schemes respectively kept off are as shown in table 1.
1 seven speed automatic transmission of table respectively keeps off implementation and corresponding transmission ratio, compares schematic table
"○" indicates that controls combines in table
It is described in detail below with reference to 1 pair of example of the invention of Fig. 1 and table, it should be noted that, transmission described herein
Than referring to the ratio between input shaft rotating speed and output shaft revolving speed, planet row k value refer to planet row the gear ring number of teeth and the sun gear number of teeth it
Than.
When clutch C2 and brake B1 is combined, connecting elements II 4 and connecting elements IV 6 are rotated integrally, connecting elements I
A gear " 1st " is realized in 3 brakings.
When brake B1 and brake B3 is combined, connecting elements I 3 and connecting elements II 4 are braked simultaneously, realize second gear
“2nd”。
When clutch C2 and brake B3 is combined, connecting elements II 4 and connecting elements IV 6 are rotated integrally, connecting elements
Three gears " 3rd " are realized in III 5 brakings.
When clutch C1 and brake B1 is combined, input link 1 and connecting elements IV 6 are rotated integrally, connecting elements I 3
Four gears " 4th " are realized in braking.
When clutch C1 and brake B2 is combined, input link 1 and connecting elements IV 6 are rotated integrally, connecting elements II 4
Five gears " 5th " are realized in braking.
When clutch C1 and brake B3 is combined, input link 1 and connecting elements IV 6 are rotated integrally, connecting elements III 5
Six gears " 6th " are realized in braking.
When clutch C1 and clutch C2 is combined, input link 1 and connecting elements IV 6 are rotated integrally, connecting elements II 4
It is rotated integrally with connecting elements IV 6, realizes seven gears " 7th ".
When clutch C2 and brake B2 is combined, connecting elements II 4 and connecting elements IV 6 are rotated integrally, connecting elements
" Rev " is reversed gear in II 4 brakings, realization.
Each gear transmission ratio is determined by the k value of three planet rows.For example, table 1 can be obtained when k1=k2=k3=1.713
Shown in respectively keep off transmission ratio, total gear range (15.321/1.000) of forward gear reaches 15.321.
The k value of three planet row PGS1~PGS3 in this programme is 1.713, can make three planet row PGS1~PGS3
Radial dimension it is smaller, meanwhile, obtain wider gear range.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (3)
1. seven gear planetary automatic transmissions, the speed changer include three planet rows, be mounted on both ends respectively with input shaft, output shaft
The input link and output link of connection, four connecting elements, three brakes and two clutches；It is characterized in that, described
Planet row is respectively planet row PGS1, planet row PGS2 and planet row PGS3；Connecting elements is respectively connecting elements I, connection structure
Part II, connecting elements III and connecting elements IV；Brake is respectively brake B1, brake B2 and brake B3；Clutch point
It Wei not clutch C1 and clutch C2；
Sun gear S1, planet carrier CA1 and the gear ring R1 of the planet row PGS1 respectively with input link, connecting elements II and connect
Component III connects；
Sun gear S2, planet carrier CA2 and the gear ring R2 of the planet row PGS2 respectively with connecting elements IV, output link and connection
Component I connects；
Sun gear S3, planet carrier CA3 and the gear ring R3 of the planet row PGS3 respectively with connecting elements III, connecting elements I and even
Connection member IV connects；
The interior hub of the sun gear S1 and clutch C1 of the input link connection planet row PGS1；
The planet carrier CA2 of the output link connection planet row PGS2；
The connecting elements II connects the interior of the planet carrier CA3 and brake B1 of the gear ring R2 of planet row PGS2, planet row PGS3
Hub；
The connecting elements II connects planet carrier CA1, the interior hub of brake B2 and the interior hub of clutch C2 of planet row PGS1；
The connecting elements III connects the interior of the sun gear S3 and brake B3 of the gear ring R1 of planet row PGS1, planet row PGS3
Hub；
The connecting elements IV connects the outer hub of the sun gear S2 of planet row PGS2, the gear ring R3 of planet row PGS3, clutch C1
With the outer hub of clutch C2；
Described brake B1, B2 and B3 are respectively used to brake attachment member I, connecting elements II and connecting elements III；
The clutch C1 connection input link and connecting elements IV；
The clutch C2 connection connecting elements II and connecting elements IV.
2. seven gears planetary automatic transmission as described in claim 1, which is characterized in that the planet row PGS1, planet row
PGS2 and planet row PGS3 is single star planet row.
3. seven gears planetary automatic transmission as claimed in claim 1 or 2, which is characterized in that the planet row PGS1, planet row
PGS2 and planet row PGS3 includes sun gear, planet carrier and gear ring；The input shaft is the turbine wheel shaft of fluid torque-converter, will be sent out
The power of motivation reaches planetary automatic transmission through fluid torque-converter；The brake and clutch are multiple-piece friction manipulation
Part is pressurizeed using hydraulic oil driving piston and is combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811577926.1A CN109707807A (en) | 2019-03-05 | 2019-03-05 | Seven gear planetary automatic transmissions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811577926.1A CN109707807A (en) | 2019-03-05 | 2019-03-05 | Seven gear planetary automatic transmissions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109707807A true CN109707807A (en) | 2019-05-03 |
Family
ID=66257090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811577926.1A Pending CN109707807A (en) | 2019-03-05 | 2019-03-05 | Seven gear planetary automatic transmissions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109707807A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006044883A1 (en) * | 2005-09-23 | 2007-05-03 | General Motors Corp., Detroit | Seven-speed gearbox, in which all components in forward gears rotate in the positive direction |
| CN102213300A (en) * | 2011-05-06 | 2011-10-12 | 卢伟玮 | Automatic transmission with multiple gears |
| US20130244822A1 (en) * | 2012-03-13 | 2013-09-19 | Honda Motor Co., Ltd. | Automatic transmission |
| CN103527732A (en) * | 2013-10-17 | 2014-01-22 | 中国北方车辆研究所 | Seven-gear planet automatic gearbox |
| CN106342137B (en) * | 2013-06-05 | 2015-05-13 | 中国北方车辆研究所 | A kind of seven grades of planet speed change mechanisms of compact conformation |
| US20160091058A1 (en) * | 2014-09-26 | 2016-03-31 | Hyundai Motor Company | Multi-stage auto transmission for vehicle |
| CN105757190A (en) * | 2016-05-04 | 2016-07-13 | 北京航空航天大学 | Seven-gear automatic transmission |
-
2019
- 2019-03-05 CN CN201811577926.1A patent/CN109707807A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006044883A1 (en) * | 2005-09-23 | 2007-05-03 | General Motors Corp., Detroit | Seven-speed gearbox, in which all components in forward gears rotate in the positive direction |
| CN102213300A (en) * | 2011-05-06 | 2011-10-12 | 卢伟玮 | Automatic transmission with multiple gears |
| US20130244822A1 (en) * | 2012-03-13 | 2013-09-19 | Honda Motor Co., Ltd. | Automatic transmission |
| CN106342137B (en) * | 2013-06-05 | 2015-05-13 | 中国北方车辆研究所 | A kind of seven grades of planet speed change mechanisms of compact conformation |
| CN103527732A (en) * | 2013-10-17 | 2014-01-22 | 中国北方车辆研究所 | Seven-gear planet automatic gearbox |
| US20160091058A1 (en) * | 2014-09-26 | 2016-03-31 | Hyundai Motor Company | Multi-stage auto transmission for vehicle |
| CN105757190A (en) * | 2016-05-04 | 2016-07-13 | 北京航空航天大学 | Seven-gear automatic transmission |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190503 |