CN202301784U - Planetary gear variable speed transmission device for electric automobile - Google Patents
Planetary gear variable speed transmission device for electric automobile Download PDFInfo
- Publication number
- CN202301784U CN202301784U CN2011204123089U CN201120412308U CN202301784U CN 202301784 U CN202301784 U CN 202301784U CN 2011204123089 U CN2011204123089 U CN 2011204123089U CN 201120412308 U CN201120412308 U CN 201120412308U CN 202301784 U CN202301784 U CN 202301784U
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- China
- Prior art keywords
- transmission device
- planetary gear
- gear ring
- housing
- gear
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- Expired - Fee Related
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Classifications
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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
- 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
- F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
- F16H3/52—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
- F16H3/54—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/70—Gearings
- B60Y2400/73—Planetary gearings
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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
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
Abstract
The utility model provides a planetary gear variable speed transmission device for an electric automobile, and belongs to the technical field of automobiles. The problems of low universality and speed variation stability of the conventional planetary gear variable speed transmission device for the electric automobile are solved. The planetary gear variable speed transmission device for the electric automobile is arranged between a motor and a differential mechanism, and comprises a shell, an input shaft, an output shaft, a sun gear connected to the input shaft, and a planetary carrier which can be connected with the output shaft. A plurality of planetary gears are connected to the planetary carrier, and are meshed with the sun gear. The variable speed transmission device also comprises gear rings, wherein the gear rings are arranged on the shell and meshed with the planetary gears, and can rotate relative to the shell. The planetary carrier is connected with the input shaft through a clutch. A brake mechanism capable of making the gear ring static relative to the shell is arranged outside each gear ring. By the planetary gear variable speed transmission device for the electric automobile, two gears of the electric automobile are shifted by a planetary gear system, so that the driving performance of the electric automobile is improved.
Description
Technical field
The utility model belongs to automobile technical field, relates to the planetary gear speed-changing transmission device of a kind of speed changer, particularly a kind of electric vehicle.
Background technique
Conventional automobile adopts gasoline to act as a fuel usually, and in recent years, along with the rise of international oil price, the Economy of automobile descends to some extent.Simultaneously, emission of automobile wastes causes bigger negative effect to atmosphere environment and urban air-quality.Along with developing of automobile industry, automobile making and research and development institution begin to be devoted to study the new automobile that drives through renewable energy sources.At present, electric vehicle engineering reaches its maturity, and product also progressively begins production and selling.
Traditional electric automobile adopts single reduction gear usually or is equipped with conventional speed-change gear box, and the former can not satisfy the climbable gradient and the highest speed requirement of car load simultaneously, and the latter has then increased tare and manufacture cost.Those skilled in the art also carry out speed change through a kind of double reduction gear to electric vehicle, for example, and the Chinese patent [patent No.: ZL201020548160.7; Notice of authorization number: CN201795003U] a kind of two-shift automatic speed variator disclosed; It comprises input shaft, output gear, two clutches and is sleeved on input shaft outside sun gear, planet carrier and gear ring successively; Said input shaft drives planet carrier through first clutch; And through second clutch driving sun gear, the output shaft of one of which termination motor; A plurality of planetary pinions are installed on the said planet carrier, they be looped around sun gear around and simultaneously and sun gear mesh with gear ring; Said output gear is coaxial affixed with planet carrier, and it drives the driving gear of differential mechanism through jack shaft; Said gear ring and gearbox case are affixed.
Above-mentioned two-shift automatic speed variator can carry out speed change to electric vehicle, improves the performance of electric vehicle, prolongs the working life of motor and battery.But the problem that this two-shift automatic speed variator exists is that because this two-shift automatic speed variator adopts two clutches, versatility and speed change stability are not high.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of planetary gear speed-changing transmission device of electric vehicle, and this installs technical problem to be solved is more stably to carry out speed change to electric vehicle.
The purpose of the utility model can realize through following technical proposal: a kind of planetary gear speed-changing transmission device of electric vehicle; This variable speed drive is arranged between motor and the differential mechanism; Comprise housing, input shaft, output shaft, be connected sun gear and the planet carrier that can link to each other on the input shaft with output shaft; Be connected with several planet wheels on the described planet carrier; Described sun gear and planet wheel are meshed, and this variable speed drive also comprises the gear ring that is arranged on the housing and can rotates with respect to housing, and above-mentioned gear ring is meshed with described planet wheel; Link through clutch between described planet carrier and the input shaft, the arranged outside of described gear ring has the arrestment mechanism that can make gear ring static with respect to housing.
The planetary gear speed-changing transmission device of this electric vehicle is arranged between the motor and differential mechanism of electric vehicle, is used to realize two retaining speed changes of electric vehicle.The working principle of this variable speed drive: when electric vehicle need go up a slope or go load when big; Clutch breaks off; Arrestment mechanism locking gear ring, input shaft drives sun gear, and planet wheel rotates and drives output shaft around sun gear; This moment, the velocity ratio of input shaft and output shaft was bigger, and output shaft is exported big torque; When load need run at high speed or go to electric vehicle hour; Clutch is closed, and arrestment mechanism unclamps gear ring, and input shaft directly drives output shaft through planet carrier and rotates; This moment, the velocity ratio of input shaft and output shaft was 1, and electric vehicle can keep high-speed travel state.This variable speed drive is through the switching of clutch and arrestment mechanism control gear, and speed change stability is high.
In the planetary gear speed-changing transmission device of above-mentioned electric vehicle, described arrestment mechanism comprises friction part that is positioned at the gear ring outside and the hydraulic braking pincers that are fixed on the housing, and above-mentioned hydraulic braking pincers can act on the described friction part.During the arrestment mechanism action, the hydraulic braking clamp is held on the friction part, and gear ring and housing are fixed.
In the planetary gear speed-changing transmission device of above-mentioned electric vehicle, described arrestment mechanism comprises the clamping strap that is set on the gear ring outer side surface, links to each other with clamping strap and can drive clamping strap and holds the pull bar of gear ring tightly and be fixed on the oil hydraulic cylinder that is used for the drive stay motion on the housing.During the arrestment mechanism action, the Driven by Hydraulic Cylinder pull bar drives clamping strap and holds gear ring tightly, and gear ring and housing are fixed.
In the planetary gear speed-changing transmission device of above-mentioned electric vehicle, be fixed with a retainer on the described housing, described gear ring and above-mentioned retainer axially locating.Gear ring can circumferentially be rotated with respect to housing.
In the planetary gear speed-changing transmission device of above-mentioned electric vehicle, the maximum transmission ratio between described input shaft and the output shaft is 5: 1～6: 1.The torque of output shaft output is bigger.
In the planetary gear speed-changing transmission device of above-mentioned electric vehicle, the quantity of described planet wheel is 2～3.As preferred planetary quantity is 2.
In the planetary gear speed-changing transmission device of above-mentioned electric vehicle, described clutch is a hydraulic clutch.The hydraulic clutch functional reliability is high, and is easy to operate.
In the planetary gear speed-changing transmission device of above-mentioned electric vehicle, described clutch is an electromagnetic clutch.Electromagnetic clutch is highly sensitive, and speed of response is fast.
Compared with prior art, the advantage of the planetary gear speed-changing transmission device of this electric vehicle is:
1, the planetary gear speed-changing transmission device of this electric vehicle realizes that through epicyclic train two retainings of electric vehicle switch, and improve the rideability of electric vehicle.
2, the planetary gear speed-changing transmission device of this electric vehicle is through the working state of clutch and clamping strap control epicyclic train, and the device versatility is high, the good stability of speed change.
3, the planetary gear speed-changing transmission device of this electric vehicle adopts hydraulic clutch, and functional reliability is high, installation and easy to operate
Description of drawings
Fig. 1 is the structural representation of the planetary gear speed-changing transmission device of this electric vehicle.
Among the figure, 1, wheel; 2, differential mechanism; 3, motor; 4, housing; 5, input shaft; 6, output shaft; 7, sun gear; 8, planet carrier; 81, planet wheel; 9, gear ring; 10, arrestment mechanism; 11, clutch.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Embodiment one:
The planetary gear speed-changing transmission device of this electric vehicle is arranged between the motor 3 and differential mechanism 2 of electric vehicle, is used to realize two retaining speed changes of electric vehicle.This variable speed drive comprises housing 4, input shaft 5, output shaft 6, sun gear 7, planet carrier 8, planet wheel 81, gear ring 9, clutch 11 and arrestment mechanism 10.
Specifically, as shown in Figure 1, input shaft 5 links to each other with the rotor of motor 3, and output shaft 6 is given wheel 1 through differential mechanism 2 with power transmission.Be fixed with a retainer on the housing 4, gear ring 9 be installed on the retainer and with the retainer axially locating, gear ring 9 can circumferentially rotate with respect to housing 4.Sun gear 7 is connected on the input shaft 5, and planet carrier 8 links to each other with output shaft 6, and planet carrier 8 is provided with two planet wheels 81.Gear ring 9, sun gear 7 and planet wheel 81 threes match; Through the design to the planetary gear train parameter can make the velocity ratio of this variable speed drive reach 5: 1～6: 1; The bigger torque of output shaft 6 outputs this moment, the tractive force and the load capacity of raising electric vehicle.
Arrestment mechanism 10 is arranged between housing 4 and the gear ring 9, can make gear ring 9 relatively and housing 4 static.In the present embodiment, arrestment mechanism 10 comprises clamping strap, pull bar and oil hydraulic cylinder.Clamping strap is set on the outer side surface of gear ring 9, and oil hydraulic cylinder is connected with housing 4 mutually, and pull bar one end is connected with the piston rod of oil hydraulic cylinder with the continuous the other end of clamping strap.During locking gear ring 9, piston rod drives pull bar pulling clamping strap, makes clamping strap hold gear ring 9 tightly, and gear ring 9 is with respect to housing 4 location; When unclamping gear ring 9, clamping strap unclamps, and gear ring 9 can rotate with respect to housing 4.
Being set in clamping strap on gear ring 9 outer side surfaces, linking to each other with clamping strap and can driving clamping strap holds the pull bar of gear ring 9 tightly and is fixed on the oil hydraulic cylinder that is used for the drive stay motion on the housing 4.During arrestment mechanism 10 actions, the Driven by Hydraulic Cylinder pull bar drives clamping strap and holds gear ring 9 tightly, makes gear ring 9 fixing with housing 4.Also be provided with clutch 11 between planet carrier 8 and the input shaft 5, make planet carrier 8 and input shaft 5 can realize separating the switching with coupled condition.In the present embodiment, clutch 11 is selected hydraulic clutch for use.In the production and assembly process of reality, clutch 11 can also be selected electromagnetic clutch for use.
The working principle of this variable speed drive: when electric vehicle need go up a slope or go load when big; Clutch 11 breaks off; Clamping strap locking gear ring 9, input shaft 5 drives sun gear 7, and planet wheel 81 rotates and drives output shaft 6 around sun gear 7; This moment, the velocity ratio of input shaft 5 and output shaft 6 was bigger, the big torque of output shaft 6 outputs; When load need run at high speed or go to electric vehicle hour; Clutch 11 closures, clamping strap unclamps gear ring 9, and input shaft 5 directly drives output shaft 6 through planet carrier 8 and rotates; This moment, the velocity ratio of input shaft 5 and output shaft 6 was 1, and electric vehicle can keep high-speed travel state.This variable speed drive is through the switching of clutch 11 with arrestment mechanism 10 control gears, and speed change stability is high.
Embodiment two:
Technological scheme among technological scheme in the present embodiment and the embodiment one is basic identical; Difference is; In the present embodiment, arrestment mechanism 10 comprises friction part that is positioned at gear ring 9 outsides and the hydraulic braking pincers that are fixed on the housing 4, and the hydraulic braking pincers can act on the friction part.During arrestment mechanism 10 actions, the hydraulic braking clamp is held on the friction part, and gear ring 9 is fixing with housing 4.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as wheel 1, differential mechanism 2, motor 3, housing 4, input shaft 5, output shaft 6, sun gear 7, planet carrier 8, planet wheel 81, gear ring 9, arrestment mechanism 10, clutch 11 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (8)
1. the planetary gear speed-changing transmission device of an electric vehicle; This variable speed drive is arranged between motor (3) and the differential mechanism (2); Comprise housing (4), input shaft (5), output shaft (6), be connected sun gear (7) and the planet carrier (8) that can link to each other on the input shaft (5) with output shaft (6); Be connected with several planet wheels (81) on the described planet carrier (8), described sun gear (7) and planet wheel (81) are meshed, and it is characterized in that; This variable speed drive also comprises the gear ring (9) that is arranged on that housing (4) is gone up and can rotates with respect to housing (4); Above-mentioned gear ring (9) is meshed with described planet wheel (81), links through clutch (11) between described planet carrier (8) and the input shaft (5), and the arranged outside of described gear ring (9) has the arrestment mechanism (10) that can make gear ring (9) static with respect to housing (4).
2. the planetary gear speed-changing transmission device of electric vehicle according to claim 1; It is characterized in that; Described arrestment mechanism (10) comprises friction part that is positioned at gear ring (9) outside and the hydraulic braking pincers that are fixed on the housing (4), and above-mentioned hydraulic braking pincers can act on the described friction part.
3. the planetary gear speed-changing transmission device of electric vehicle according to claim 1; It is characterized in that described arrestment mechanism (10) comprises the clamping strap that is set on gear ring (9) outer side surface, links to each other with clamping strap and can drive pull bar that clamping strap holds gear ring (9) tightly and is fixed on the oil hydraulic cylinder that is used for the drive stay motion on the housing (4).
4. according to the planetary gear speed-changing transmission device of claim 1 or 2 or 3 described electric vehicles, it is characterized in that described housing is fixed with a retainer on (4), described gear ring (9) and above-mentioned retainer axially locating.
5. the planetary gear speed-changing transmission device of electric vehicle according to claim 4 is characterized in that, the maximum transmission ratio between described input shaft (5) and the output shaft (6) is 5: 1～6: 1.
6. according to the planetary gear speed-changing transmission device of claim 1 or 2 or 3 described electric vehicles, it is characterized in that the quantity of described planet wheel (81) is 2～3.
7. according to the planetary gear speed-changing transmission device of claim 1 or 2 or 3 described electric vehicles, it is characterized in that described clutch (11) is a hydraulic clutch.
8. according to the planetary gear speed-changing transmission device of claim 1 or 2 or 3 described electric vehicles, it is characterized in that described clutch (11) is an electromagnetic clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204123089U CN202301784U (en) | 2011-10-26 | 2011-10-26 | Planetary gear variable speed transmission device for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204123089U CN202301784U (en) | 2011-10-26 | 2011-10-26 | Planetary gear variable speed transmission device for electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN202301784U true CN202301784U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204123089U Expired - Fee Related CN202301784U (en) | 2011-10-26 | 2011-10-26 | Planetary gear variable speed transmission device for electric automobile |
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| CN (1) | CN202301784U (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555794A (en) * | 2012-02-27 | 2012-07-11 | 长城汽车股份有限公司 | Planetary gear train variable speed driving system of electric automobile |
| CN102705457A (en) * | 2012-06-29 | 2012-10-03 | 成都凯迈科技有限公司 | Variable-speed transmission device for electric automobile |
| CN103899717A (en) * | 2012-12-25 | 2014-07-02 | 张家港市九鼎机械有限公司 | Speed changing mechanism |
| CN104154191A (en) * | 2014-08-04 | 2014-11-19 | 福建万润新能源科技有限公司 | Externally-controlled infinitely variable speed device |
| CN105882394A (en) * | 2016-04-12 | 2016-08-24 | 泰州吉比特动力技术有限公司 | Planetary gear train electric drive system for light vehicle and working method of planetary gear train electric drive system |
| CN106704500A (en) * | 2017-03-08 | 2017-05-24 | 重庆青山工业有限责任公司 | Two-speed transmission of pure electric vehicle |
| CN106853770A (en) * | 2017-03-08 | 2017-06-16 | 重庆青山工业有限责任公司 | A kind of shift transmission of pure electric automobile planet row type two |
| CN107606077A (en) * | 2017-10-26 | 2018-01-19 | 哈尔滨东安汽车发动机制造有限公司 | A kind of two gear power transmissions with Shuangzi planet row |
| CN107701665A (en) * | 2017-11-09 | 2018-02-16 | 柳州惠林科技有限责任公司 | A kind of differential type is isolated to close two shift transmissions |
| CN108068615A (en) * | 2016-11-08 | 2018-05-25 | 陕西汉德车桥有限公司 | A kind of novel central decelerating through motor drive axle |
| CN108167404A (en) * | 2017-12-31 | 2018-06-15 | 柳州惠林科技有限责任公司 | It is a kind of brake gear ring without reverse gear two-shift automatic variable speed device |
| CN109372960A (en) * | 2018-11-28 | 2019-02-22 | 宁波上中下自动变速器有限公司 | Single motor single planetary gear multistage gear shift transmission and automobile |
| CN109990061A (en) * | 2017-12-29 | 2019-07-09 | 比亚迪股份有限公司 | Speed changer, power-driven system and vehicle |
| CN109986951A (en) * | 2017-12-29 | 2019-07-09 | 比亚迪股份有限公司 | Power-driven system and vehicle |
| CN113389865A (en) * | 2021-06-07 | 2021-09-14 | 北京理工大学 | Planetary transmission based on magneto-rheological gear shifting |
| EP4102103A1 (en) * | 2021-06-09 | 2022-12-14 | ArvinMeritor Technology, LLC | Multi-speed axle assembly having a one-way freewheel clutch |
-
2011
- 2011-10-26 CN CN2011204123089U patent/CN202301784U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555794A (en) * | 2012-02-27 | 2012-07-11 | 长城汽车股份有限公司 | Planetary gear train variable speed driving system of electric automobile |
| CN102705457A (en) * | 2012-06-29 | 2012-10-03 | 成都凯迈科技有限公司 | Variable-speed transmission device for electric automobile |
| CN103899717A (en) * | 2012-12-25 | 2014-07-02 | 张家港市九鼎机械有限公司 | Speed changing mechanism |
| CN104154191A (en) * | 2014-08-04 | 2014-11-19 | 福建万润新能源科技有限公司 | Externally-controlled infinitely variable speed device |
| CN104154191B (en) * | 2014-08-04 | 2016-08-17 | 福建万润新能源科技有限公司 | A kind of stepless speed change device of external control |
| CN105882394A (en) * | 2016-04-12 | 2016-08-24 | 泰州吉比特动力技术有限公司 | Planetary gear train electric drive system for light vehicle and working method of planetary gear train electric drive system |
| CN108068615A (en) * | 2016-11-08 | 2018-05-25 | 陕西汉德车桥有限公司 | A kind of novel central decelerating through motor drive axle |
| CN106704500A (en) * | 2017-03-08 | 2017-05-24 | 重庆青山工业有限责任公司 | Two-speed transmission of pure electric vehicle |
| CN106853770A (en) * | 2017-03-08 | 2017-06-16 | 重庆青山工业有限责任公司 | A kind of shift transmission of pure electric automobile planet row type two |
| CN107606077A (en) * | 2017-10-26 | 2018-01-19 | 哈尔滨东安汽车发动机制造有限公司 | A kind of two gear power transmissions with Shuangzi planet row |
| CN107701665A (en) * | 2017-11-09 | 2018-02-16 | 柳州惠林科技有限责任公司 | A kind of differential type is isolated to close two shift transmissions |
| CN109990061A (en) * | 2017-12-29 | 2019-07-09 | 比亚迪股份有限公司 | Speed changer, power-driven system and vehicle |
| CN109986951A (en) * | 2017-12-29 | 2019-07-09 | 比亚迪股份有限公司 | Power-driven system and vehicle |
| CN108167404A (en) * | 2017-12-31 | 2018-06-15 | 柳州惠林科技有限责任公司 | It is a kind of brake gear ring without reverse gear two-shift automatic variable speed device |
| CN109372960A (en) * | 2018-11-28 | 2019-02-22 | 宁波上中下自动变速器有限公司 | Single motor single planetary gear multistage gear shift transmission and automobile |
| CN113389865A (en) * | 2021-06-07 | 2021-09-14 | 北京理工大学 | Planetary transmission based on magneto-rheological gear shifting |
| EP4102103A1 (en) * | 2021-06-09 | 2022-12-14 | ArvinMeritor Technology, LLC | Multi-speed axle assembly having a one-way freewheel clutch |
| EP4257390A3 (en) * | 2021-06-09 | 2024-01-17 | ArvinMeritor Technology, LLC | Multi-speed axle assembly having a one-way freewheel clutch |
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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: 20120704 Termination date: 20131026 |