CN107269778B - A kind of automatic transmission - Google Patents
A kind of automatic transmission Download PDFInfo
- Publication number
- CN107269778B CN107269778B CN201710494901.4A CN201710494901A CN107269778B CN 107269778 B CN107269778 B CN 107269778B CN 201710494901 A CN201710494901 A CN 201710494901A CN 107269778 B CN107269778 B CN 107269778B
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- Prior art keywords
- planet
- automatic transmission
- planet row
- clutch
- row
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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
- F16H3/62—Gearings having three or more central 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
-
- 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
- F16H2200/0052—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds
-
- 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
- F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
Abstract
The present invention relates to speed changer fields, disclose a kind of automatic transmission, the transmission of six speed gear positions is realized using the combination of three planet rows, two brakes and three clutches, less it is arranged using brake in the program, the processing and manufacture of internal tooth on cabinet to reduce automatic transmission, and relatively more clutch quantity are conducive to the nested designs of clutch, so that automatic transmission structure is more compact, reduce production cost, under conditions of meeting same number of ratios, the utilization efficiency of clutch is improved.
Description
Technical field
The present invention relates to speed changer fields, more particularly to a kind of six gear transmissions.
Background technique
Multistage automatic transmission power train realizes that the mechanism of speed change generally comprises multiple planet rows, and the power of engine is through liquid
It is passed to after planet row gear carries out speed change and exports after power torque-converters.Volume, weight, efficiency and the carrying of automatic transmission
Ability is directly related with planet row gear.
The transmission gear number of automatic transmission is more, and the fuel consumption of automobile is lower, and economy is better, but with gear
Several increases, quantity and controlled clutch, the quantity of brake of planet row are also increasing, and meet the design of theoretical stage ratio more
It is to be difficult to realize.People are seeking to form planet row with the number combinations of less planet row, clutch and brake always
Gear, it is high, high-efficient and can be realized more gear numbers to meet the compact-sized of automobile, intensity.
Passenger car is in the market for six gear transmission mechanisms substantially using three planet rows, two clutches at present
Device and three brakes combine to realize.Since brake is finally that friction steel disc tooth is connected on cabinet, brake is deposited
In the processing and manufacturing difficulty for undoubtedly increasing cabinet, and cause more complicated automatic transmission structure；And due to cabinet material
Material be usually aluminium alloy, more brakes undoubtedly can to can proof strength while light-weight design cause difficulty.
However, the quantity of relatively large number of clutch is then conducive to the nested designs of clutch, so that entire planet
It is more compact to arrange gear；In addition, relatively large number of clutch quantity is conducive between planet row is broken in specific gear incision
Connection relationship reduces towing torque so that the planet row of redundancy is not involved in rotation, reduces band row and stirs oily loss, improves efficiency.
Summary of the invention
The object of the present invention is to provide a kind of six speed gear positions and compact-sized, easy to manufacture, high-efficient of being able to achieve
Automatic transmission.
To achieve the goals above, the present invention provides a kind of automatic transmission, including three planet rows, two brakes and
Three clutches, each planet row include sun gear, planet carrier, gear ring and planetary gear set, three planet rows point
Not Wei the first planet row, the second planet row, third planet row, two brakes be respectively the first brake, second braking
Device, three clutches are respectively first clutch, second clutch, third clutch；
First planet row includes two groups of planetary gear sets, and wherein one in the planetary gear set of the first planet row described in two groups
The gear ring Inside gear drive of group and first planet row, another group and institute in the planetary gear set of the first planet row described in two groups
State the sun gear external toothing transmission of the first planet row, external toothing transmission between the planetary gear set of the first planet row described in two groups；
The planet carrier of the planet carrier of first planet row and second planet row whole and described first system after being connected
Dynamic device is connected, and the gear ring of first planet row is connect by third clutch with the gear ring that the third planet is arranged, and described the
The gear ring of two planet rows and the planet carrier of third planet row are connected, and the second brake and second planet row are too
Sun wheel is connected；
The sun gear of the third planet row is fixed, the planet carrier of first planet row or first planet
The gear ring of row is connect by first clutch with the power input link of the automatic transmission, the sun of first planet row
Wheel and the power input link of the automatic transmission are connected, and the sun gear of second planet row passes through second clutch and institute
State the sun gear connection of the first planet row, the planet carrier of the third planet row and the power output member of the automatic transmission
It is connected.
Preferably, the sun gear of first planet row passes through with the power input link of the automatic transmission
Spline or the mode of welding are fixedly connected.
Preferably, the planet carrier of the planet carrier of first planet row and second planet row by spline or
The mode of welding is fixedly connected.
Preferably, the gear ring of second planet row and the planet carrier of third planet row pass through spline or weldering
The mode connect is fixedly connected.
Preferably, the planet carrier of the third planet row and the power output member of automatic transmission pass through spline
Or the mode of welding is fixedly connected.
Preferably, the brake is drum brake band or multi-disk wet type brake.
Preferably, the clutch is multi-plate wet clutch or dog clutch.
Preferably, the cabinet of the automatic transmission and the sun gear of third planet row pass through spline or weldering
The mode connect is fixedly connected.
Preferably, one end of first brake is fixedly connected with the cabinet of the automatic transmission, described
The planet carrier of the other end of first brake and first planet row is connected or the other end of first brake and institute
The planet carrier for stating the second planet row is connected.
Preferably, one end of the second brake is fixedly connected with the cabinet of the automatic transmission, described
The sun gear of the other end of second brake and second planet row is connected.
To sum up, a kind of automatic transmission provided by the invention, using three planet rows, two brakes and three clutches
Combination realize the transmission of six speed gear positions, be less arranged using brake in the program, to reduce the case of automatic transmission
The processing and manufacture of internal tooth on body, and relatively more clutch quantity are conducive to the nested designs of clutch, so that automatically
Speed changer structure is more compact, reduces production cost, under conditions of meeting same number of ratios, improves the benefit of clutch
Use efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for automatic transmission that the embodiment of the present invention one provides；
Fig. 2 is a kind of structural schematic diagram of automatic transmission provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of structural schematic diagram for automatic transmission that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural schematic diagram for automatic transmission that the embodiment of the present invention four provides；
Wherein, 1- power input link, the first brake of 2-, 3- second brake, 4- first clutch, the second clutch of 5-
Device, 6- third clutch, 7- cabinet, 8- first planet carrier, the first gear ring of 9-, 10- the first outer planet round group, the first expert of 11-
Star-wheel group, the first sun gear of 12-, the second sun gear of 13-, the second planet carrier of 14-, the second planetary gear set of 15-, the second gear ring of 16-,
17- third gear ring, 18- the third line star-wheel group, 19- third planet carrier, 20- third sun gear, 21- power output member.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Embodiment one:
As shown in Figure 1, a kind of automatic transmission of the preferred embodiment of the present invention one, including three planet rows, two brakings
Device and three clutches, three planet rows are respectively the first planet row, the second planet row and third planet row, each row
Star row includes sun gear, planetary gear set, planet carrier and gear ring, and planetary gear set is connect with planet carrier by pin shaft.Specifically,
First planet row includes the first sun gear 12, the first planetary gear set, first planet carrier 8 and the first gear ring 9, and the first planetary gear set
It is connect with first planet carrier 8 by pin shaft, the second planet row includes the second sun gear 13, the second planetary gear set 15, the second planet
Frame 14 and the second gear ring 16, and the second planetary gear set 15 is connect with the second planet carrier 14 by pin shaft, third planet row include the
Three sun gears 20, the third line star-wheel group 18, third planet carrier 19 and third gear ring 17, and the third line star-wheel group 18 and third planet
Frame 19 is connected by pin shaft, and two above-mentioned brakes are respectively the first brake 2, second brake 3, three clutch difference
For first clutch 4, second clutch 5, third clutch 6；
The first above-mentioned planetary gear set includes the first outer planet round group 10, the first inner planets round group 11, the first outer planet round
Group 10 and 9 Inside gear drive of the first gear ring, the first inner planets round group 11 and 12 external toothing of the first sun gear are driven, the first outer planet
External toothing is driven between wheel group 10 and the first inner planets round group 11, and the first outer planet round group 10 and the first inner planets round group 11 are logical
Pin shaft is crossed to connect with first planet carrier 8；
First planet carrier 8 is whole after connecting with the second planet carrier 14 to be connected with the first brake 2, and the first gear ring 9 passes through the
Three clutches 6 are connect with third gear ring 17, and the second gear ring 16 is connected with third planet carrier 19, second brake 3 and second sun
Wheel 13 is connected；
Third sun gear 20 is fixed, and first planet carrier 8 is inputted by first clutch 4 and the power of automatic transmission
Component 1 connects, and the first sun gear 12 is connected with power input link 1, and the second sun gear 13 passes through second clutch 5 and first too
The power output member 21 of 12 connection of sun wheel, third planet carrier 19 and automatic transmission is connected, so that after planet row speed change
It outputs power, and by the closing or opening of two brakes and three clutches operation, completes the transmission of six speed gear positions.
Based on the above-mentioned technical proposal, a kind of automatic transmission that the embodiment of the present invention one provides, using three planet rows, two
The transmission of six speed gear positions is realized in the combination of a brake and three clutches, is less arranged using brake in the program, thus
Reduce the processing and manufacture of internal tooth on the cabinet of automatic transmission, and relatively more clutch quantity are conducive to clutch
Nested designs reduce production cost so that automatic transmission structure is more compact, in the condition for meeting same number of ratios
Under, improve the utilization efficiency of clutch.
Preferably, the first sun gear 12 and the power input link 1 of automatic transmission are consolidated by way of spline or welding
Fixed connection imparts power to planet row to guarantee to rotate synchronously.
Preferably, first planet carrier 8 is fixedly connected by way of spline or welding with the second planet carrier 14, same to guarantee
Step rotation.
Preferably, the second gear ring 16 is fixedly connected by way of spline or welding with third planet carrier 19, same to guarantee
Step rotation.
Preferably, the power output member 21 of third planet carrier 19 and automatic transmission is consolidated by way of spline or welding
Fixed connection, is rotated synchronously with guaranteeing and spreads out of power from planet row.
Preferably, above-mentioned brake is drum brake band or multi-disk wet type brake, has preferable braking ability.
Preferably, above-mentioned clutch is multi-plate wet clutch or dog clutch, and there is preferably realization to close
Conjunction or isolated function.
Preferably, the cabinet 7 of automatic transmission is fixedly connected with third sun gear 20, so that third sun gear 20 and cabinet
7 connections are integral, so that third sun gear 20 is in normal on-position, to be able to achieve the transformation of six speed gear positions.
Preferably, the cabinet of automatic transmission is fixedly connected by way of spline or welding with third sun gear 20, compared with
It ensure that the effect being fixedly connected goodly.
Preferably, one end of the first brake 2 is fixedly connected with the cabinet 7 of automatic transmission, the first brake 2 it is another
End is connect with first planet carrier 8.
It is further preferred that one end of second brake 3 is fixedly connected with the cabinet 7 of automatic transmission, second brake 3
The other end connect with the second sun gear 13.
The embodiment of the present invention one additionally provides the shift control method based on above-mentioned automatic transmission, comprising:
The two of them element closure in two brakes and three clutch five elements is controlled when each gear, together
When two brakes of control and three clutch five elements in remaining element disconnect；
The closing or opening of the different elements of control is to realize shift.
Specifically, it is carried out in conjunction with Fig. 1 as described below:
1) the first brake 2 of control closure (braking), while the closure of third clutch 6 is controlled, and simultaneously described in control
Second brake 3, first clutch 4 and second clutch 5 simultaneously switch off, therefore power transmission line are as follows: and power input link 1 →
First sun gear, 12 → the first inner planets round group, 11 → the first outer planet round group, 10 → the first 9 → third of gear ring clutch 6 → the
Three 19 → power output members of gear ring 17 → the third line star-wheel 18 → third planet carrier of group 21, to realize first grade, speed ratio is [K1
×(1+K3)]/K3；
2) control second brake 3 closure (braking), while the closure of third clutch 6 is controlled, and simultaneously described in control
First brake 2, first clutch 4 and second clutch 5 simultaneously switch off, therefore power transmission line are as follows: and power input link 1 →
First sun gear, 12 → the first inner planets round group, 11 → the first outer planet round group, 10 → the first 9 → third of gear ring clutch 6 → the
Three 19 → power output members of gear ring 17 → the third line star-wheel 18 → third planet carrier of group 21, further, since 16 He of the second gear ring
Third planet carrier 19 is fixedly connected, and when power reaches third planet carrier 19, the second gear ring 16 is rotated synchronously, and power transmitting is by the
Two gear rings, 16 → the second planetary gear set, 15 → the second 14 → first planet carrier of planet carrier, 8 → the first planetary gear set (including outside first
Planetary gear set 10 and the first inner planet group 11), so composition circuit, the power loop have the power transmission route of the gear
Impetus, to realize that second gear, speed ratio are [K1 × (1+K2+K3)+K2 × K3]/[K3 × (1+K2)]；
3) it controls the second clutch 5 and third clutch 6 is closed at, and control the first brake 2, second simultaneously
Brake 3 and first clutch 4 simultaneously switch off, therefore power transmission route has two: first routes: power input link 1
12 → the first inner planets round group of → the first sun gear, 11 → the first outer planet round group, 10 → the first 9 → third of gear ring clutch 6 →
19 → power output member of third gear ring 17 → the third line star-wheel 18 → third planet carrier of group 21, Article 2: power input link 1
5 → the second sun gear of → second clutch, 13 → the second planetary gear set, 15 → the second gear ring 16 → third planet carrier, 19 → power is defeated
Component 21 out, to realize that third gear, speed ratio are [K1 × (1+K2+K3)+K2 × K3]/[K3 × (K1+K2)]；
4) it controls the first clutch 4 and third clutch 6 is closed at, and control the first brake 2, second simultaneously
Brake 3 and second clutch 5 simultaneously switch off, therefore power transmission route are as follows: 1 → the first planet row of power input link is (whole
Revolution) → 19 → power output member of third clutch 6 → third gear ring 17 → the third line star-wheel 18 → third planet carrier of group 21,
To realize fourth speed, speed ratio is (1+K3)/K3；
5) it controls the first clutch 4 and second clutch 5 is closed at, and control the first brake 2, second simultaneously
Brake 3 and third clutch 6 simultaneously switch off, under the gear, since first clutch 4 and second clutch 5 are closed at,
So that the first planet row and the second planet row integrally turn round, the directly driven force input member 1 of power pass to the second gear ring 16 →
19 → power output member of third planet carrier 21, and the second gear ring 16 is fixedly connected with third planet carrier 19, so that power inputs
Component 1 and 21 constant speed of power output member, to realize fifth gear, therefore speed ratio is 1；
6) control second brake 3 closure (braking), while the closure of first clutch 4 is controlled, and simultaneously described in control
First brake 2, third clutch 6 and second clutch 5 simultaneously switch off, therefore power transmission line are as follows: and power input link 1 →
First planet row (whole revolution) → 14 → the second planetary gear set of the second planet carrier, 15 → the second 16 → third planet carrier of gear ring 19
→ power output member 21, to realize that sixth gear, speed ratio are K2/ (1+K2)；
In addition, the first brake 2 of control closure (braking), while the closure of second clutch 5 is controlled, and control institute simultaneously
Second brake 3, third clutch 6 and first clutch 4 is stated to simultaneously switch off, therefore power transmission line are as follows: power input link 1
5 → the second sun gear of → second clutch, 13 → the second planetary gear set, 15 → the second gear ring 16 → third planet carrier, 19 → power is defeated
(R) shelves are fallen back to realize in component 21 out, and speed ratio is-k2；
Wherein, K1, K2, K3 respectively correspond the characteristic parameter arranged for the first planet row, the second planet row, third planet, number
Value is equal to the ratio between gear ring and the number of teeth of sun gear.
Above-mentioned automatic transmission realizes that (wherein " √ " table is presented with following table in the specific control method of six speed gear positions
Show closure):
Embodiment two:
As shown in Fig. 2, the difference of automatic transmission provided by Embodiment 2 of the present invention and embodiment one is, the first braking
One end of device 2 is fixedly connected with the cabinet 7 of automatic transmission, and the other end of the first brake 2 is connect with the second planet carrier 14,
Technical effect is the same as example 1.
The other technical characteristics of the present embodiment two are the same as example 1, and details are not described herein.
Embodiment three:
As shown in figure 3, the difference of automatic transmission and embodiment one that the embodiment of the present invention three provides is, the first gear ring
9 are connect by first clutch 4 with the power input link 1 of automatic transmission, and technical effect is the same as example 1.
The other technical characteristics of the present embodiment three are the same as example 1, and details are not described herein.
Example IV:
As shown in figure 4, the difference of automatic transmission and embodiment three that the embodiment of the present invention four provides is, the first braking
One end of device 2 is fixedly connected with the cabinet 7 of automatic transmission, and the other end of the first brake 2 is connect with first planet carrier 8,
Technical effect is identical as embodiment three.
The other technical characteristics of the present embodiment four are identical as embodiment three, and details are not described herein.
To sum up, a kind of automatic transmission provided in an embodiment of the present invention, using three planet rows, two brakes and three
The transmission of six speed gear positions is realized in the combination of clutch, is less arranged using brake in the program, to reduce fluid drive
The processing and manufacture of internal tooth on the cabinet of device, and relatively more clutch quantity are conducive to the nested designs of clutch, make
It is more compact to obtain automatic transmission structure, reduces production cost, under conditions of meeting same number of ratios, improves clutch
The utilization efficiency of device.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of automatic transmission, which is characterized in that including three planet rows, two brakes and three clutches, Mei Gesuo
Stating planet row includes sun gear, planet carrier, gear ring and planetary gear set, and three planet rows are respectively the first planet row,
Two planet rows, third planet row, two brakes are respectively the first brake, second brake, three clutches
Respectively first clutch, second clutch, third clutch；
First planet row includes two groups of planetary gear sets, in the planetary gear set of the first planet row described in two groups wherein one group with
The gear ring Inside gear drive of first planet row, another group in the planetary gear set of the first planet row described in two groups and described the
The sun gear external toothing of one planet row is driven, external toothing transmission between the planetary gear set of the first planet row described in two groups；
Whole and first brake after the planet carrier of the planet carrier of first planet row and second planet row is connected
It is connected, the gear ring of first planet row is connect by third clutch with the gear ring that the third planet is arranged, second row
The gear ring of star row and the planet carrier of third planet row are connected, the sun gear of the second brake and second planet row
It is connected；
The sun gear of third planet row is fixed, the planet carrier of first planet row or first planet row
Gear ring is connect by first clutch with the power input link of the automatic transmission, the sun gear of first planet row and
The power input link of the automatic transmission is connected, and the sun gear of second planet row passes through second clutch and described the
The sun gear of one planet row connects, and the planet carrier of the third planet row and the power output member of the automatic transmission are solid
Even.
2. automatic transmission as described in claim 1, which is characterized in that the sun gear of first planet row and described automatic
The power input link of speed changer is fixedly connected by way of spline or welding.
3. automatic transmission as described in claim 1, which is characterized in that the planet carrier of first planet row and described second
The planet carrier of planet row is fixedly connected by way of spline or welding.
4. automatic transmission as described in claim 1, which is characterized in that the gear ring and described the third line of second planet row
The planet carrier of star row is fixedly connected by way of spline or welding.
5. automatic transmission as described in claim 1, which is characterized in that the planet carrier of the third planet row and fluid drive
The power output member of device is fixedly connected by way of spline or welding.
6. automatic transmission as described in claim 1, which is characterized in that the brake is that drum brake band or multiple-piece are wet
Formula brake.
7. automatic transmission as described in claim 1, which is characterized in that the clutch is multi-plate wet clutch or dog
Dental formula clutch.
8. such as the described in any item automatic transmission of claim 1-7, which is characterized in that the cabinet of the automatic transmission and institute
The sun gear for stating third planet row is fixedly connected by way of spline or welding.
9. such as the described in any item automatic transmission of claim 1-7, which is characterized in that one end of first brake and institute
The cabinet for stating automatic transmission is fixedly connected, and the planet carrier of the other end of first brake and first planet row is connected
Or the other end of first brake and the planet carrier of second planet row are connected.
10. such as the described in any item automatic transmission of claim 1-7, which is characterized in that one end of the second brake with
The cabinet of the automatic transmission is fixedly connected, and the sun gear of the other end of the second brake and second planet row is solid
Even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710494901.4A CN107269778B (en) | 2017-06-26 | 2017-06-26 | A kind of automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710494901.4A CN107269778B (en) | 2017-06-26 | 2017-06-26 | A kind of automatic transmission |
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| CN107269778A CN107269778A (en) | 2017-10-20 |
| CN107269778B true CN107269778B (en) | 2019-07-09 |
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| CN201710494901.4A Active CN107269778B (en) | 2017-06-26 | 2017-06-26 | A kind of automatic transmission |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180265B (en) * | 2017-12-29 | 2021-12-24 | 广州汽车集团股份有限公司 | Three-planet-row automatic transmission and vehicle |
| CN108194587B (en) * | 2017-12-29 | 2021-10-26 | 广州汽车集团股份有限公司 | Three-planet-row automatic transmission and vehicle |
| CN108210184B (en) * | 2018-01-11 | 2019-12-03 | 国家康复辅具研究中心 | One kind three keeps off variable-ratio push-chairs |
| CN110657206B (en) * | 2018-06-29 | 2021-10-22 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657208B (en) * | 2018-06-29 | 2021-10-22 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60239331D1 (en) * | 2001-05-30 | 2011-04-14 | Jatco Ltd | GEAR SWITCH FOR AN AUTOMATIC GEARBOX |
| JP3770392B2 (en) * | 2002-11-25 | 2006-04-26 | ジヤトコ株式会社 | Gear transmission for automatic transmission |
| KR100623776B1 (en) * | 2004-11-19 | 2006-09-19 | 현대자동차주식회사 | A 6th-SPEED POWER TRAIN OF AN AUTOMATIC TRANSMISSION FOR A VEHICLE |
| DE102006006649A1 (en) * | 2006-02-14 | 2007-08-23 | Zf Friedrichshafen Ag | Multi-speed transmission |
| US8425366B2 (en) * | 2009-08-05 | 2013-04-23 | GM Global Technology Operations LLC | Multi-speed transmission having three planetary gear sets |
| US8545361B2 (en) * | 2009-08-05 | 2013-10-01 | GM Global Technology Operations LLC | Multi-speed transmission having three planetary gear sets |
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