CN108131427A - A kind of 2 speed automatic transmissions and shifting control system - Google Patents
A kind of 2 speed automatic transmissions and shifting control system Download PDFInfo
- Publication number
- CN108131427A CN108131427A CN201711441984.7A CN201711441984A CN108131427A CN 108131427 A CN108131427 A CN 108131427A CN 201711441984 A CN201711441984 A CN 201711441984A CN 108131427 A CN108131427 A CN 108131427A
- Authority
- CN
- China
- Prior art keywords
- brake
- gear
- connected firmly
- bevel gear
- parking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
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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
- F16H3/58—Gearings having only two central gears, connected by orbital gears with sets of orbital gears, each consisting of two or more intermeshing orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/037—Gearboxes for accommodating differential gearings
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3408—Locking or disabling mechanisms the locking mechanism being moved by the final actuating mechanism
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention relates to a kind of 2 speed automatic transmissions and shifting control systems, its structure is mainly subtracted gear wheel, halting mechanism, differential mechanism and babinet and is formed by motor, CR CR planetary gear mechanisms, the first brake, second brake, main reduction gear, master, first brake is connected firmly with rear ring gear, second brake is connected firmly with preceding sun gear, by the first brake and the braking that replaces of second brake, gear shift operation is realized；Halting mechanism mainly includes parallel connection bevel gear, cone pinion and third brake, and the locking of cone pinion is realized by third brake guaranties, ensures, with smaller torque abrupt deceleration vehicle, to effectively improve parking efficiency.Transmission efficiency of the present invention, compact-sized, gearshift mode is simple, more light gear shift operation is provided for electric vehicle, at the same can realize larger differential than gear design, facilitate electric vehicle that relatively reasonable output power is configured under different road conditions.
Description
Technical field
The invention belongs to electric vehicle electric drive technology fields, and in particular to a kind of 2 speed automatic transmissions and gearshift control
System.
Background technology
With the continuous development of battery life and capacity, electric vehicle is gradually recognized as new energy product by the public
Can, and with increasing of the country to its dynamics of investment, the paces of electric vehicle to the development of car and commercial car are getting faster,
At the same time, quick popularize for being embodied as electric vehicle of rapid nitriding provides certain precondition.
Electric vehicle provides power using motor driving, and the speed for realizing automobile by electric machine speed regulation is adjusted, and advantage exists
In eliminating cumbersome gear-box gear, simplify power transmission mode, but being short of power when driving there are slope road
Problem.Advance works personnel attempt to solve the above problems by the way of power of motor is increased, but be easy to cause power of motor mistake
Surplus, cost increases.For this purpose, high to low gear collocation is provided, solves power not it has been proposed that for electric vehicle installation small-sized speed changer again
The problem of sufficient.But existing two shift transmission is mostly auto-manual type structure in the market, and gearshift is mainly realized by synchronizer, though
It is so simple in structure, but gearshift be easy to cause impact, and there are running noise it is big the shortcomings of.To solve the above-mentioned problems, it is of the invention
One kind is proposed based on planetary two gear speed changing structures, compact-sized, transmission efficiency, and shifts gears control easily, impact is small,
For abundant power transmission system for electric vehicle structural system, new thinking and Technical Reference are provided.
Invention content
For the problems such as existing transmission for electric automobile product is single, shift shock is big, it is driven based on planetary gear train special
Point the present invention seeks to design a kind of 2 speed automatic transmissions and shifting control system, considers from actual condition, compensates for existing
The deficiency of speed changer structure.
The present invention is adopted the following technical scheme that solve technical problem：
A kind of 2 speed automatic transmissions and shifting control system, feature are that the system contains CR-CR planetary gear machines
Structure, dual brake mechanism, halting mechanism and differential mechanism；Mainly by motor M, the first epicyclic gear train, the second epicyclic gear train,
First brake, second brake, third brake, main reduction gear, master subtract gear wheel, bevel gear in parallel, parking bevel gear
It is formed with differential mechanism, first epicyclic gear train and the second epicyclic gear train are Simpson planetary gear.
The double brake system mainly includes：First brake, second brake；The first brake outside and case
Body connects firmly, internal to be connected firmly with rear ring gear, is connected firmly outside second brake with the babinet, internal to be connected firmly with preceding sun gear, passes through
First brake and the second brake are alternately braked, and realize gear shift operation.
The halting mechanism includes：Bevel gear in parallel, parking bevel gear, third brake；Main reduction gear and cone in parallel
Gear connects firmly, and the parallel connection bevel gear engages with parking bevel gear, and the parking bevel gear connects firmly with third brake, and described the
It is connected firmly outside three brakes with babinet.
Compared with the prior art, the present invention has the beneficial effect that：
1st, the present invention is driven using CR-CR planetary gear transmission mechanisms are based on different from parallel-axes gears, tight with structure
It gathers, the characteristics of bearing load is big, using the normal meshing state of helical teeth, stable working long lifespan saves the gear of planetary gear system
Gearshift and synchronizer are removed, shift process gear does not detach always, therefore shift shock phenomenon is not present, while planet tooth
It takes turns using internal messing in a manner that external toothing is combined, so as to significantly reduce transmission dimensions.
2nd, the present invention is containing bevel gear halting mechanism, compared with common ratchet parking mode, bevel gear can ensure with
Smaller torque abrupt deceleration vehicle effectively improves parking effect, ensures secure ratcs when automobile stops on the slope,
3rd, the present invention cooperates by two groups of brakes and realizes gear shift operation, and the first brake and second brake are located at
Planetary gear outermost, the first brake are connected firmly with rear ring gear, and second brake is connected firmly with preceding sun gear, when a gear is braked, after
The relatively low achievable fast braking of ring gear rotating speed, when two gears are braked, the second brake arm of force is longer, and braking effect is apparent.
Description of the drawings
Fig. 1 is gear transmission structure schematic diagram；
Fig. 2 is the power transmission line figure of a gear；
Fig. 3 is the power transmission line figure of two gears；
Wherein：1 rear sun gear, planetary gear after 2, ring gear after 3, sun gear before 4, planetary gear before 5, ring gear before 6,7 main reductions
Gear, 8 masters subtract gear wheel, 9 bevel gears in parallel, 10 parking bevel gears, and 11, differential mechanism, 12 wheels, M motor, B1First braking
Device, B2Second brake, B3Third brake, A1First planet carrier, A2Second planet carrier.
Specific embodiment
As shown in Figure 1, the present invention relates to a kind of 2 speed automatic transmissions and shifting control system, feature is mainly by electronic
Machine M, the first epicyclic gear train, the second epicyclic gear train, the first brake B1, second brake B2, main reduction gear 7, it is main subtract it is big
Gear 8, bevel gear 9 in parallel, parking bevel gear 10, differential mechanism 11 and babinet composition, first epicyclic gear train and the second row
Star gear row is Simpson planetary gear.
Motor rotor is connected by key with retarder main shaft, and rear sun gear 1, rear sun gear 1 and are fixedly connected on main shaft
Two planet carrier A2On rear planetary gear 2 engage, rear planetary gear 2 and rear 3 internal messing of ring gear.First planet carrier A1It is solid with rear ring gear 3
Connection, while the other end is connect with preceding planetary gear 5 by bearing, the second planet carrier A2It is connected firmly with preceding ring gear 6, while the other end is with after
Planetary gear 2 is connected by bearing.Preceding planetary gear 5 is engaged with preceding sun gear 4, preceding 4 tubulose empty set of sun gear on main shaft, while with
Second brake B2Connection, first planet carrier A1With the first brake B1It is connected, the second planet carrier A2It is connected firmly with main reduction gear 7,
Main reduction 7 tubulose empty set of gear is on main shaft, while main reduction gear 7 is connected firmly with bevel gear 9 in parallel, and bevel gear 9 in parallel is with staying
Vehicle bevel gear 10 engages, parking bevel gear 10 and brake B3It connects firmly.In addition, main reduction gear 7 subtracts gear wheel 8 with master and engages,
It is transmitted power on wheel 12 by differential mechanism 11.
The operation principle of the present invention is described as follows：
It is required according to the speed per hour of existing electronic vehicle, and combines special road conditions to vehicle deceleration requirement, design gear tooth
Number is as shown in table 1.
1 number of gear teeth table of table
The executive component of each gear is as shown in table 2.
The gearshift executive component worksheet of table 2
Note："●" represents to combine in table, and "○" represents separation；
With reference to Fig. 1 and table 2, each transfer route that keeps off is described as follows:
1. neutral gear (N)
During neutral gear, the first brake B1With the second brake B2In discrete state, motor can not will be dynamic at this time
Power is transferred to wheel 12, and vehicle is by inertia traveling or comes to a halt.
2. forward gear (D)
(1) forward gear (D1 gears)
As shown in Fig. 2, motor rotates forward, the first brake B1It is powered and combines, second brake B2Keep separation, the first planet
Frame A1It remains fixed, the second planet carrier A2It is freely rotated, rear planetary gear 2 had not only revolved round the sun but also rotation.Motor M output power passes through electricity
Motivation axis drives rear sun gear 1 to rotate, and rear sun gear 1 imparts power to the rear planetary gear 2 engaged again, due to the first system
Dynamic device B1In on-position, first planet carrier A1It is remained stationary as with rear gear ring 3, rear planetary gear 2 drives the second planet carrier A2Turn
It is dynamic, the second planet carrier A2By the main reduction gear 7 connected firmly with it, impart power to master and subtract gear wheel 8, via differential mechanism 11
Output shaft imparts power to wheel 12.
Forward gear gear ratio calculation：
(2) advance two gears (D2 gears)
As shown in figure 3, motor rotates forward, the first brake B1Keep separation, second brake B2It is powered and combines, the first planet
Frame A1It is freely rotated, the second planet carrier A2Fixed, preceding sun gear 4 is fixed, and preceding planetary gear 5 and rear planetary gear 2 both revolved round the sun
Rotation again.Motor M exports power and rear sun gear 1 is driven to rotate by motor reel, and rear sun gear 1 imparts power to and it
The rear planetary gear 2 of engagement, due to the first brake B1In discrete state, first planet carrier A1It is freely rotated with rear gear ring 3, after
Planetary gear 2 drives the second planet carrier A2Rotation, rear gear ring 3 pass through the first planet carrier A that is connected firmly with it15 turns of planetary gear before drive
It is dynamic, due to second brake B2It is powered and combines, make the preceding sun gear 4 connected firmly with it fixed, ensure the second planet carrier A2It is fixed to pass
Dynamic ratio output power, the second planet carrier A2Main reduction gear 7 is driven to rotate, main reduction gear 7 imparts power to master and subtracts canine tooth
Wheel 8, via 11 output shaft of differential mechanism, imparts power to wheel 12.
Advance two gear gear ratio calculations：
3. it reverses gear (R)
It reversing gear and is realized by motor reversal, power transmission line is identical with forward gear, since rotor inverts, gear
Direction is engaged with direction of rotation before on the contrary, last wheel 12 inverts, realization is moved backward.
4. parking (P)
The halting mechanism be bevel gear structure, third brake B3Connected firmly with cone pinion 10, cone pinion 10 with
Double bevel wheel 9 engages, and double bevel wheel 9 is connected firmly with main reduction gear 8.When needing braking or parking, third brake B3
It is powered and combines braking cone pinion 10, so as to ensure that double bevel wheel 9 and main reduction gear 8 are fixed.
Claims (3)
1. a kind of 2 speed automatic transmissions and shifting control system, it is characterised in that the system contains CR-CR planetary gear mechanisms,
Dual brake system, halting mechanism and differential mechanism；Mainly by motor (M), the first epicyclic gear train, the second epicyclic gear train,
First brake (B1), second brake (B2), third brake (B3), main reduction gear (7), the main gear wheel (8), in parallel of subtracting
Bevel gear (9), parking bevel gear (10) and differential mechanism (11) are formed, and first epicyclic gear train is with the second epicyclic gear train
CR-CR planetary gears.
2. a kind of 2 speed automatic transmissions and shifting control system according to claim 1, it is characterised in that the double brake
System mainly includes：First brake (B1), second brake (B2)；First brake (the B1) it is external connected firmly with babinet, it is interior
Portion is connected firmly with rear ring gear (3), second brake (B2) it is external connected firmly with the babinet, it is internal to be connected firmly with preceding sun gear (4), pass through
First brake (the B1) and the second brake (B2) alternately brake, realize gear shift operation.
3. a kind of 2 speed automatic transmissions and shifting control system according to claim 1, it is characterised in that the halting mechanism
Including：Bevel gear (9) in parallel, parking bevel gear (10), third brake (B3)；Main reduction gear (7) and bevel gear in parallel (9)
It connects firmly, the parallel connection bevel gear (9) is engaged with parking bevel gear (10), the parking bevel gear (10) and third brake (B3)
It connects firmly, the third brake (B3) external connected firmly with babinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441984.7A CN108131427A (en) | 2017-12-27 | 2017-12-27 | A kind of 2 speed automatic transmissions and shifting control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441984.7A CN108131427A (en) | 2017-12-27 | 2017-12-27 | A kind of 2 speed automatic transmissions and shifting control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108131427A true CN108131427A (en) | 2018-06-08 |
Family
ID=62393301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711441984.7A Pending CN108131427A (en) | 2017-12-27 | 2017-12-27 | A kind of 2 speed automatic transmissions and shifting control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108131427A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159659A (en) * | 2018-10-10 | 2019-01-08 | 广州市新域动力技术有限公司 | Pure electric vehicle double speed dynamical system and its driving method |
| CN110056616A (en) * | 2019-04-23 | 2019-07-26 | 合肥工业大学 | A kind of motor-is without cone tooth differential mechanism integral type multidrive |
| CN112065938A (en) * | 2020-07-24 | 2020-12-11 | 宁波上中下自动变速器有限公司 | Two-gear automatic transmission assembly and gear shifting method |
| CN112867880A (en) * | 2018-10-24 | 2021-05-28 | 罗伯特·博世有限公司 | Power-shiftable multi-speed transmission |
| CN113858939A (en) * | 2021-10-08 | 2021-12-31 | 宁波吉利罗佑发动机零部件有限公司 | Power transmission device |
| CN114294386A (en) * | 2021-01-12 | 2022-04-08 | 花潍 | Double-speed transmission for electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103692907A (en) * | 2014-01-03 | 2014-04-02 | 合肥工业大学 | Power system assembly of electric vehicle |
| CN104057821A (en) * | 2014-06-04 | 2014-09-24 | 合肥工业大学 | Power system assembly for two-speed electric vehicles |
| DE102014217809A1 (en) * | 2014-09-05 | 2016-03-10 | Zf Friedrichshafen Ag | Group transmission of a motor vehicle |
| CN106594200A (en) * | 2016-07-13 | 2017-04-26 | 盛瑞传动股份有限公司 | Multi - stage transmission |
| CN107345558A (en) * | 2016-05-06 | 2017-11-14 | 陕西汉德车桥有限公司 | Pure electronic two grades of transaxles and electric car |
-
2017
- 2017-12-27 CN CN201711441984.7A patent/CN108131427A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692907A (en) * | 2014-01-03 | 2014-04-02 | 合肥工业大学 | Power system assembly of electric vehicle |
| CN104057821A (en) * | 2014-06-04 | 2014-09-24 | 合肥工业大学 | Power system assembly for two-speed electric vehicles |
| DE102014217809A1 (en) * | 2014-09-05 | 2016-03-10 | Zf Friedrichshafen Ag | Group transmission of a motor vehicle |
| CN107345558A (en) * | 2016-05-06 | 2017-11-14 | 陕西汉德车桥有限公司 | Pure electronic two grades of transaxles and electric car |
| CN106594200A (en) * | 2016-07-13 | 2017-04-26 | 盛瑞传动股份有限公司 | Multi - stage transmission |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159659A (en) * | 2018-10-10 | 2019-01-08 | 广州市新域动力技术有限公司 | Pure electric vehicle double speed dynamical system and its driving method |
| CN112867880A (en) * | 2018-10-24 | 2021-05-28 | 罗伯特·博世有限公司 | Power-shiftable multi-speed transmission |
| CN110056616A (en) * | 2019-04-23 | 2019-07-26 | 合肥工业大学 | A kind of motor-is without cone tooth differential mechanism integral type multidrive |
| CN110056616B (en) * | 2019-04-23 | 2020-10-23 | 合肥工业大学 | Motor-bevel-gear-free differential integrated multi-gear automatic transmission |
| CN112065938A (en) * | 2020-07-24 | 2020-12-11 | 宁波上中下自动变速器有限公司 | Two-gear automatic transmission assembly and gear shifting method |
| CN114294386A (en) * | 2021-01-12 | 2022-04-08 | 花潍 | Double-speed transmission for electric automobile |
| CN113858939A (en) * | 2021-10-08 | 2021-12-31 | 宁波吉利罗佑发动机零部件有限公司 | Power transmission device |
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Application publication date: 20180608 |
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