CN104930135B - A kind of four keep off power-assisted change speed gear box and its shift process control method - Google Patents
A kind of four keep off power-assisted change speed gear box and its shift process control method Download PDFInfo
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- CN104930135B CN104930135B CN201510334363.3A CN201510334363A CN104930135B CN 104930135 B CN104930135 B CN 104930135B CN 201510334363 A CN201510334363 A CN 201510334363A CN 104930135 B CN104930135 B CN 104930135B
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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
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
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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
- F16H2200/0043—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising four forward speeds
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention provides a kind of four keep off power-assisted change speed gear box and its shift process control method, belong to technical field of automobile transmission, purpose is to solve the problems, such as that prior art sliding formwork loss when compensation drives power interruption is larger, the present invention is using adjacent speed than gear power-assisted mode, by the control to clutch and three lock units and the setting of unilateral bearing, it is to avoid prior art in order to prevent power interruption and using servo-clutch when compensating as speed synovial membrane more excessive and caused than gap loses excessive problem.The present invention is capable of achieving four effective gears, using adjacent speed than gear power-assisted in shift process, it is possible to reduce clutch sliding wear loses, reduce energy loss, the present invention can be realized as vehicle start and power failure-free gearshift only with a clutch, and number of components is few, reduces production cost.
Description
Technical field
The invention belongs to technical field of automobile transmission, and in particular to a kind of four keep off power-assisted change speed gear box and its shift process control
Method.
Background technology
Mechanical automatic gearbox (AMT) based on manual transmission, by increasing shift-selecting and changing actuating mechanism and clutch
Device actuator and corresponding sensor and control unit, realize self shifter.Mechanical automatic gearbox efficiently solves handss
Dynamic variator is unable to the low problem of self shifter and automatic transmission transmission efficiency, simple structure, low cost, transmission efficiency
It is high.But in shift process, the inherent shortcoming of power interruption does not obtain basic solution, and changes in bringing shift process
Gear impact and the problem of irregularity of starting to walk, affect the dynamic property and the comfortableness taken of vehicle, seriously constrain its development and
Industrialization space.
Power interruption is the structural inherent shortcomings of AMT, inherently cannot be solved only by the improvement of control algolithm.
The drive system that appears as of double-clutch automatic gearbox (DCT) technology brings dawn, is one kind upgrading to AMT technologies,
Power shifting can be realized, and shifting comfort is also greatly improved, but the system structure is complicated, key components and partss pair
Design, processing and manufacturing technical requirements are very high, cause DCT technical thresholds and cost very high, limit which wide variety of latent
Power.
In order to eliminate power interruption, hitachi companies propose the AMT with assist clutch (servo-clutch), change
During gear, rubbed by the cunning of assist clutch, compensate the driving power for interrupting.But this mechanism's compensation ability is limited：
By taking 5 shift transmissions as an example, if to all of shift process energy effective compensation power, power compensation clutch need to be installed on most
High gear 5 is kept off so as to which in all shift processes, driving disc spacing pressing rotating speed is higher than driven disc rotating speed, so as to provide driving for shift process
Torque (rather than drawing torque).But the power compensation of highest gear to the compensation ability that low gear is shifted gears be it is weaker, if 5
Gear speed ratio is 1,1 gear speed than being 4, then for the switching between -2 gear of 1 gear, compensation power is about a quarter, and this
When power compensation clutch speed discrepancy it is very big, increase compensation moment of torsion mean steeply rising for unit friction work.
The content of the invention
Larger in order to solve the problems, such as prior art sliding formwork loss when compensation drives power interruption, the present invention has put forward one kind
Power-assisted change speed gear boxes and its shift process control method are kept off than the four of gear power-assisted mode using adjacent speed.
The four gears power-assisted change speed gear box mainly includes：Input shaft 1, clutch compressing disc 2, clutch friction plate 3, gear I 4,
Duplicate gear A (left tooth 5, right tooth 6), duplicate gear B (left tooth 8, right tooth 9), output shaft 10, gear II 11, duplicate gear C it is (right
Tooth 13, left tooth 14), gear III 16, gear IV 17 and unilateral bearing 18；
Clutch friction plate 3, gear I 4, duplicate gear A and the equal empty sets of duplicate gear B are on input shaft 1；Duplicate gear A
It is provided with lock unit I 7 to be connected with input shaft 1 and duplicate gear B between, gear I 4 is connected with clutch friction plate 3；
Gear II 11, duplicate gear C and IV 17 equal empty set of gear are on output shaft 10；Lock unit II 12 is located at duplicate gear
It is connected between C and gear II 11 and with output shaft 10, lock unit III 15 is located between duplicate gear C and gear III 16 and gear IV
17 connection and empty set on output shaft 10；III 16 empty set of gear in the connection of gear IV 17 and lock unit III 15, unilateral bearing
18 and output shaft 10 connect and be located between gear IV 17 and output shaft 10, to realize when the rotary speed of gear IV 17 is more than defeated
During the rotary speed of shaft 10, the power on gear IV 17 can be for delivery on output shaft 10, when the rotary speed of gear IV 17
During less than output shaft 10, the power on gear IV 17 cannot be delivered on output shaft 10；
Lock unit I 7, lock unit II 12 and lock unit III 15 are present and three kinds of bonding states：Intermediate orientation, to the left
The state that is slidably connected and the state that is slidably connected to the right；
Gear I 4 is engaged with gear IV 17, and the left teeth 5 of duplicate gear A are engaged with gear III 16, the right teeth 6 of duplicate gear A with it is double
The left tooth of connection gear C 14 is engaged, and the right tooth of the left teeth 8 of duplicate gear B and duplicate gear C 13 is engaged, the right teeth 9 of duplicate gear B and gear II
11 engagements.
The present invention can provide four effective gears, and the power transmission line of each gear is detailed below：
During the gear work of change speed gear box 1, lock unit I 7 is slidably connected to the right, and lock unit II 12 is slidably connected to the left, lock unit
III 15 keep middle disengaged position.Power source output power is by input shaft 1, lock unit I 7, the left teeth 8 of duplicate gear B, duplex-gear
The right teeth 13 of wheel C, lock unit II 12 are delivered on output shaft 10.
During the gear work of change speed gear box 2, lock unit I 7 is slidably connected to the right, and lock unit II 12 is slidably connected to the right, lock unit
III 15 keep middle disengaged position.Power source output power is by input shaft 1, lock unit I 7, the right teeth 9 of duplicate gear B, gear II
11, lock unit II 12 is delivered on output shaft 10.
During the gear work of change speed gear box 3, lock unit I 7 is slidably connected to the left, and lock unit II 12 is slidably connected to the right, lock unit
III 15 keep middle disengaged position.Power source output power is by input shaft 1, lock unit I 7, the right teeth 6 of duplicate gear A, duplex-gear
The left teeth 14 of wheel C, the right teeth 13 of duplicate gear C, the left teeth 8 of duplicate gear B, the right teeth 9 of duplicate gear B, gear II 11, lock unit II 12 are passed
It is delivered on output shaft 10.
During the gear work of change speed gear box 4, lock unit III 15 is slidably connected to the left, and lock unit II 12 is slidably connected to the right, synchronous
Device I 7 keeps middle disengaged position, clutch compressing disc 2 to be combined with clutch friction plate 3.Power source output power passes through input shaft
1, clutch compressing disc 2, clutch friction plate 3, gear I 4, gear IV 17, lock unit III 15, gear III 16, the left teeth of duplicate gear A
The right tooth 6 of 5, duplicate gear A, the left teeth 14 of duplicate gear C, the right teeth 13 of duplicate gear C, the left teeth 8 of duplicate gear B, the right teeth of duplicate gear B
9, gear II 11, lock unit II 12 are delivered on output shaft 10.
The gearshift control process of the variator is specific as follows：
When rising up into 2 gear from 1 gear, clutch compressing disc 2 is gradually combined with clutch friction plate 3, the power of power source output, and one
Part is delivered to output shaft 10 by 1 gear power path, and another part power is by input shaft 1, clutch compressing disc 2, clutch
Friction plate 3, gear I 4, gear IV 17, unilateral bearing 18 are delivered on output shaft 10.As clutch compressing disc 2 and clutch rub
The intensification of 3 combination degree of pad, is gradually reduced by the power of 1 gear transmission, and when being reduced to zero, lock unit II 12 is disengaged, together
Step device II 12 is slidably connected to the right, and clutch compressing disc 2 is drifted apart from clutch friction plate 3, is linked into 2 gears.Power source output is dynamic
By input shaft 1, lock unit I 7, the right teeth 9 of duplicate gear B, gear II 11, lock unit II 12 are delivered on output shaft 10 power.
When rising up into 3 gear from 2 gears, lock unit III 15 is slidably connected to the right, and clutch compressing disc 2 is with clutch friction plate 3 gradually
With reference to the power of power source output, a part are delivered to output shaft 10 by 2 gear power paths, and another part power is by defeated
Enter axle 1, clutch compressing disc 2, clutch friction plate 3, gear I 4, gear IV 17, lock unit III 15, the right teeth 13 of duplicate gear C are double
The left tooth 8 of connection gear B, the right teeth 9 of duplicate gear B, gear II 11, lock unit II 12 are delivered on output shaft 10.With clutch pressure
Disk 2 and the intensification of 3 combination degree of clutch friction plate, are gradually reduced by the power of 2 gear transmission, when being reduced to zero, synchronous
Device I 7 is disengaged, and lock unit I 7 is slidably connected to the left, and clutch compressing disc 2 is drifted apart from clutch friction plate 3, and lock unit III 15 takes off
Open, be linked into 3 gears.Power source output power is by input shaft 1, lock unit I 7, the right teeth 9 of duplicate gear B, gear II 11, lock unit
II 12 are delivered on output shaft 10.
When rising up into 4 gear from 3 gears, lock unit III 15 is slidably connected to the left, and clutch compressing disc 2 is with clutch friction plate 3 gradually
With reference to the power of power source output, a part are delivered to output shaft 10 by 3 gear power paths, and another part power is by defeated
Enter axle 1, clutch compressing disc 2, clutch friction plate 3, gear I 4, gear IV 17, lock unit III 15, gear III 16, duplicate gear A
Left tooth 5, the right teeth 6 of duplicate gear A, the left teeth 14 of duplicate gear C, the right teeth 13 of duplicate gear C, the left teeth 8 of duplicate gear B, duplicate gear B
Right tooth 9, gear II 11, lock unit II 12 are delivered to output shaft 10.As clutch compressing disc 2 is combined journey with clutch friction plate 3
The intensification of degree, is gradually reduced by the power of 3 gear transmission, and when being reduced to zero, lock unit I 7 is disengaged, clutch compressing disc 2 with from
Clutch friction plate 3 is completely combined, and is linked into 4 gears.Power source output power is by input shaft 1, clutch compressing disc 2, clutch friction
Piece 3, gear I 4, gear IV 17, lock unit III 15, gear III 16, the left teeth 5 of duplicate gear A, the right teeth 6 of duplicate gear A, duplex-gear
The left teeth 14 of wheel C, the right teeth 13 of duplicate gear C, the left teeth 8 of duplicate gear B, the right teeth 9 of duplicate gear B, gear II 11, lock unit II 12 are passed
It is delivered on output shaft 10.
Beneficial effect of the present invention：
1st, using adjacent speed than gear power-assisted, it is possible to reduce clutch sliding wear loses, reduce energy loss.
2nd, the present invention can be realized as vehicle start and power failure-free gearshift, number of components only with a clutch
It is few, low cost.
3rd, the present invention is capable of achieving 4 effective gears.
Description of the drawings
Fig. 1 is agent structure of the present invention；
Fig. 2 is the lower power transmission line of 1 gear of the present invention；
Fig. 3 is the lower power transmission line of 2 gear of the present invention；
Fig. 4 is the lower power transmission line of 3 gear of the present invention；
Fig. 5 is the lower power transmission line of 4 gear of the present invention；
Fig. 6 is that power-assisted of the present invention I keeps off power transmission line；
Fig. 7 is that power-assisted of the present invention II keeps off power transmission line；
Fig. 8 is that power-assisted of the present invention III keeps off power transmission line；
Labelling in the figures above is as follows：Including input shaft 1, clutch compressing disc 2, clutch friction plate 3, gear I 4 are double
The left tooth 5 of connection gear A, the right teeth 6 of duplicate gear A, lock unit I 7, the left teeth 8 of duplicate gear B, the right teeth 9 of duplicate gear B, output shaft 10,
Gear II 11, lock unit II 12, the right teeth 13 of duplicate gear C, the left teeth 14 of duplicate gear C, lock unit III 15, gear III 16, gear
IV 17, unilateral bearing 18.
Specific embodiment
Technical scheme is further elaborated with reference to Figure of description.
As shown in figure 1, heretofore described four gears power-assisted change speed gear box mainly includes：Input shaft 1, clutch compressing disc 2, clutch
Device friction plate 3, gear I 4, duplicate gear A (left tooth 5, right tooth 6), duplicate gear B (left tooth 8, right tooth 9), output shaft 10, gear
II 11, duplicate gear C (right tooth 13, left tooth 14), gear III 16, gear IV 17 and unilateral bearing 18.
Clutch friction plate 3, gear I 4, duplicate gear A and the equal empty sets of duplicate gear B are on input shaft 1；Duplicate gear A
It is provided with lock unit I 7 to be connected with input shaft 1 and duplicate gear B between, gear I 4 is connected with clutch friction plate 3.
Gear II 11, duplicate gear C and IV 17 equal empty set of gear are on output shaft 10；Lock unit II 12 is located at duplicate gear
It is connected between C and gear II 11 and with output shaft 10, lock unit III 15 is located between duplicate gear C and gear III 16 and gear IV
17 connection and empty set on output shaft 10；III 16 empty set of gear in the connection of gear IV 17 and lock unit III 15, unilateral bearing
18 and output shaft 10 connect and be located between gear IV 17 and output shaft 10, to realize when the rotary speed of gear IV 17 is more than defeated
During the rotary speed of shaft 10, the power on gear IV 17 can be for delivery on output shaft 10, when the rotary speed of gear IV 17
During less than output shaft 10, the power on gear IV 17 cannot be delivered on output shaft 10.
Gear I 4 is engaged with gear IV 17, and the left teeth 5 of duplicate gear A are engaged with gear III 16, the right teeth 6 of duplicate gear A with it is double
The left tooth of connection gear C 14 is engaged, and the right tooth of the left teeth 8 of duplicate gear B and duplicate gear C 13 is engaged, the right teeth 9 of duplicate gear B and gear II
11 engagements.
Lock unit I 7, lock unit II 12 and lock unit III 15 are present and three kinds of bonding states：Intermediate orientation, to the left
The state that is slidably connected and the state that is slidably connected to the right.
The present invention can provide four effective gears, specifically describe the power transmission road of each gear below in conjunction with the accompanying drawings
Line：
As shown in Fig. 2 when the present invention 1 keeps off work, lock unit I 7 is slidably connected to the right, and lock unit II 12 is slided knot to the left
Close, remaining disengagement.Power source output power is by input shaft 1, lock unit I 7, the left teeth 8 of duplicate gear B, the right teeth of duplicate gear C
13, lock unit II 12 is delivered on output shaft 10.
As shown in figure 3, when the present invention 2 keeps off work, lock unit I 7 is slidably connected to the right, and lock unit II 12 is slided to the right knot
Close, remaining disengagement.Power source output power is by input shaft 1, lock unit I 7, the right teeth 9 of duplicate gear B, gear II 11, lock unit
II 12 are delivered on output shaft 10.
As shown in figure 4, when the present invention 3 keeps off work, lock unit I 7 is slidably connected to the left, and lock unit II 12 is slided to the right knot
Close, remaining disengagement.Power source output power is by input shaft 1, lock unit I 7, the right teeth 6 of duplicate gear A, the left teeth of duplicate gear C
The right tooth 13 of 14, duplicate gear C, the left teeth 8 of duplicate gear B, the right teeth 9 of duplicate gear B, gear II 11, lock unit II 12 are delivered to defeated
On shaft 10.
As shown in figure 5, when the present invention 4 keeps off work, lock unit III 15 is slidably connected to the left, and lock unit II 12 is slided to the right
With reference to remaining disengagement, clutch compressing disc 2 are combined with clutch friction plate 3.Power source output power is by input shaft 1, clutch
Platen 2, clutch friction plate 3, gear I 4, gear IV 17, lock unit III 15, gear III 16, the left teeth 5 of duplicate gear A, duplex-gear
The right teeth 6 of wheel A, the left teeth 14 of duplicate gear C, the right teeth 13 of duplicate gear C, the left teeth 8 of duplicate gear B, the right teeth 9 of duplicate gear B, gear II
11, lock unit II 12 is delivered on output shaft 10.
Shift process of the invention is specifically described with reference to Fig. 3～Fig. 8.
When needing to rise up into 2 gear from 1 gear, clutch compressing disc 2 is gradually combined with clutch friction plate 3, power source output
Power, a part are delivered to output shaft 10 by 1 gear power path, and another part power passes through input shaft 1, clutch compressing disc 2,
Clutch friction plate 3, gear I 4, gear IV 17, unilateral bearing 18 are delivered on output shaft 10, such as Fig. 6.With clutch compressing disc
2 with the intensification of 3 combination degree of clutch friction plate, be gradually reduced by the power of 1 gear transmission, when being reduced to zero, lock unit
II 12 disengage, and lock unit II 12 is slidably connected to the right, and clutch compressing disc 2 is drifted apart from clutch friction plate 3, is linked into 2 gears.It is dynamic
By input shaft 1, lock unit I 7, the right teeth 9 of duplicate gear B, gear II 11, lock unit II 12 are delivered to output to power source output power
On axle 10, such as Fig. 3.
When needing to rise up into 3 gear from 2 gears, lock unit III 15 is slidably connected to the right, clutch compressing disc 2 and clutch friction plate
3 gradually combine, the power of power source output, and a part is delivered to output shaft 10 by 2 gear power paths, and another part power leads to
Cross input shaft 1, clutch compressing disc 2, clutch friction plate 3, gear I 4, gear IV 17, lock unit III 15, the right teeth of duplicate gear C
The left tooth 8 of 13, duplicate gear B, the right teeth 9 of duplicate gear B, gear II 11, lock unit II 12 are delivered on output shaft 10, such as Fig. 7.With
The intensification of clutch compressing disc 2 and 3 combination degree of clutch friction plate, is gradually reduced by the power of 2 gear transmission, when being reduced to
When zero, lock unit I 7 is disengaged, and lock unit I 7 is slidably connected to the left, and clutch compressing disc 2 is drifted apart from clutch friction plate 3, together
Step device III 15 is disengaged, and is linked into 3 gears.Power source output power is by input shaft 1, lock unit I 7, the right teeth 9 of duplicate gear B, gear II
11, lock unit II 12 is delivered on output shaft 10, such as Fig. 4.
When needing to rise up into 4 gear from 3 gears, lock unit III 15 is slidably connected to the left, clutch compressing disc 2 and clutch friction plate
3 gradually combine, the power of power source output, and a part is delivered to output shaft 10 by 3 gear power paths, and another part power leads to
Cross input shaft 1, clutch compressing disc 2, clutch friction plate 3, gear I 4, gear IV 17, lock unit III 15, gear III 16, duplex
The left tooth 5 of gear A, the right teeth 6 of duplicate gear A, the left teeth 14 of duplicate gear C, the right teeth 13 of duplicate gear C, the left teeth 8 of duplicate gear B, duplex
The right tooth 9 of gear B, gear II 11, lock unit II 12 are delivered to output shaft 10, such as Fig. 8.As clutch compressing disc 2 and clutch rub
The intensification of 3 combination degree of pad, is gradually reduced by the power of 3 gear transmission, and when being reduced to zero, lock unit I 7 is disengaged, clutch
Device platen 2 is completely combined with clutch friction plate 3, is linked into 4 gears.Power source output power by input shaft 1, clutch compressing disc 2,
Clutch friction plate 3, gear I 4, gear IV 17, lock unit III 15, gear III 16, the left teeth 5 of duplicate gear A, duplicate gear A are right
Tooth 6, the left teeth 14 of duplicate gear C, the right teeth 13 of duplicate gear C, the left teeth 8 of duplicate gear B, the right teeth 9 of duplicate gear B, gear II 11, together
Step device II 12 is delivered on output shaft 10, such as Fig. 5.
It can be seen that the present invention can realize adjacent speed in shift process than gear power-assisted from above shift process,
While power failure-free, the sliding wear loss of clutch can be reduced.
Gear ratio of the table 1 for each group meshing gear.
Table 1
| N1 | N2 | N3 | N4 | N5 | |
| Numerical value | 2.70 | 4.00 | 2.67 | 5.00 | 2.50 |
1 middle gear of table, II 11 number of teeth and the ratio of right 9 numbers of teeth of tooth of duplicate gear B be right 13 number of teeth of tooth of N1, duplicate gear C with it is double
The ratio of left 8 number of teeth of tooth of connection gear B is N3, gear for the ratio of left 14 number of teeth of tooth of N2, duplicate gear C and right 6 numbers of teeth of tooth of duplicate gear A
III 16 numbers of teeth are N4 with the ratio of left 5 numbers of teeth of tooth of duplicate gear A, and IV 17 number of teeth of gear is N5 with the ratio of I 4 number of teeth of gear.
Speed Ratio Distribution of the table 2 for each gear of the invention.
Table 2
| Work gear | Power-assisted gear | |
| I1 | I1=N2=4.00 | |
| I1-2 | I1-2=N5=2.5 | |
| I2 | I2=N1=2.70 | |
| I2-3 | I2-3=N5 ÷ N2 × N1=1.687 | |
| I3 | I3=N3 ÷ N2 × N1=1.80 | |
| I3-4 | I3-4=N5 ÷ N4 × N3 ÷ N2 × N1=0.90 | |
| I4 | I4=N5 ÷ N4 × N3 ÷ N2 × N1=0.90 |
In table 2, I1 is 1 gear speed ratio, and I2 is 2 gear speed ratios, and I3 is 3 gear speed ratios, and I4 is 4 gear speed ratios, and I1-2 keeps off speed for power-assisted I
Than I2-3 keeps off fast ratio for power-assisted II, and I3-4 keeps off fast ratio for power-assisted III.
Claims (5)
1. a kind of four power-assisted change speed gear box is kept off, it is characterised in that：The change speed gear box includes：Input shaft（1）, clutch compressing disc（2）, from
Clutch friction plate（3）, gear I（4）, duplicate gear A, duplicate gear B, output shaft（10）, gear II（11）, duplicate gear C, tooth
Wheel III（16）, gear IV（17）And unilateral bearing（18）；
Clutch friction plate（3）, gear I（4）, duplicate gear A and the equal empty sets of duplicate gear B be in input shaft（1）On；Duplicate gear
Lock unit I is provided between A and duplicate gear B（7）With input shaft（1）Connection, gear I（4）With clutch friction plate（3）Connection；
Gear II（11）, duplicate gear C and gear IV（17）Empty set is in output shaft（10）On；Lock unit II（12）Positioned at duplex
Gear C and gear II（11）Between and and output shaft（10）Connection, lock unit III（15）Positioned at duplicate gear C and gear III（16）
Between with gear IV（17）Connect and empty set is in output shaft（10）On；Gear III（16）Empty set is in gear IV（17）With lock unit III
（15）Connection on, unilateral bearing（18）With output shaft（10）Connect and be located at gear IV（17）With output shaft（10）Between, with
Realize when gear IV（17）Rotary speed be more than output shaft（10）Rotary speed when, gear IV（17）On power can pass
It is delivered to output shaft（10）On, when gear IV（17）Rotary speed be less than output shaft（10）When, gear IV（17）On power without
Method is delivered to output shaft（10）On；
Lock unit I（7）, lock unit II（12）With lock unit III（15）Exist and three kinds of bonding states：Intermediate orientation, to
A left side is slidably connected state and the state that is slidably connected to the right；
Gear I（4）With gear IV（17）Engagement, the left teeth of duplicate gear A（5）With gear III（16）Engagement, the right teeth of duplicate gear A
（6）With the left teeth of duplicate gear C（14）Engagement, the left teeth of duplicate gear B（8）With the right teeth of duplicate gear C（13）Engagement, duplicate gear B
Right tooth（9）With gear II（11）Engagement.
2. according to claim 1 a kind of four the shift control method of power-assisted change speed gear box is kept off, it is characterised in that the speed change
The drive connection of four gears of case is as follows：
During the gear work of change speed gear box 1, power source output power passes through input shaft（1）, lock unit I（7）, the left teeth of duplicate gear B
（8）, the right teeth of duplicate gear C（13）, lock unit II（12）It is delivered to output shaft（10）On；
During the gear work of change speed gear box 2, power source output power passes through input shaft（1）, lock unit I（7）, the right teeth of duplicate gear B
（9）, gear II（11）, lock unit II（12）It is delivered to output shaft（10）On；
During the gear work of change speed gear box 3, power source output power passes through input shaft（1）, lock unit I（7）, the right teeth of duplicate gear A
（6）, the left teeth of duplicate gear C（14）, the right teeth of duplicate gear C（13）, the left teeth of duplicate gear B（8）, the right teeth of duplicate gear B（9）, tooth
Wheel II（11）, lock unit II（12）It is delivered to output shaft（10）On；
During the gear work of change speed gear box 4, power source output power passes through input shaft（1）, clutch compressing disc（2）, clutch friction plate
（3）, gear I（4）, gear IV（17）, lock unit III（15）, gear III（16）, the left teeth of duplicate gear A（5）, duplicate gear A is right
Tooth（6）, the left teeth of duplicate gear C（14）, the right teeth of duplicate gear C（13）, the left teeth of duplicate gear B（8）, the right teeth of duplicate gear B（9）,
Gear II（11）, lock unit II（12）It is delivered to output shaft（10）On.
3. according to claim 2 a kind of four the shift control method of power-assisted change speed gear box is kept off, it is characterised in that：When the change
Fast case is kept off from 1 when rising up into 2 gear, clutch compressing disc（2）With clutch friction plate（3）Gradually combine, with clutch compressing disc（2）With
Clutch friction plate（3）The intensification of combination degree, is gradually reduced by the power of 1 gear transmission, when being reduced to zero, lock unit II
（12）Disengage, lock unit II（12）It is slidably connected to the right, clutch compressing disc（2）With clutch friction plate（3）It is drifted apart from, is linked into
2 gears.
4. according to claim 1 a kind of four the shift control method of power-assisted change speed gear box is kept off, it is characterised in that when the change
Fast case is kept off from 2 when rising up into 3 gear, lock unit III（15）It is slidably connected to the right, clutch compressing disc（2）With clutch friction plate（3）By
Gradually combine, with clutch compressing disc（2）With clutch friction plate（3）The intensification of combination degree, by the power of 2 gear transmission gradually
Reduce, when being reduced to zero, lock unit I（7）Disengage, lock unit I（7）It is slidably connected to the left, clutch compressing disc（2）With clutch
Friction plate（3）It is drifted apart from, lock unit III（15）Disengage, be linked into 3 gears.
5. according to claim 1 a kind of four the shift control method of power-assisted change speed gear box is kept off, it is characterised in that when the change
Fast case is kept off from 3 when rising up into 4 gear, lock unit III（15）It is slidably connected to the left, clutch compressing disc（2）With clutch friction plate（3）By
Gradually combine, with clutch compressing disc（2）With clutch friction plate（3）The intensification of combination degree, by the power of 3 gear transmission gradually
Reduce, when being reduced to zero, lock unit I（7）Disengage, clutch compressing disc（2）With clutch friction plate（3）It is completely combined, is linked into 4
Gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334363.3A CN104930135B (en) | 2015-06-16 | 2015-06-16 | A kind of four keep off power-assisted change speed gear box and its shift process control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334363.3A CN104930135B (en) | 2015-06-16 | 2015-06-16 | A kind of four keep off power-assisted change speed gear box and its shift process control method |
Publications (2)
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| CN105485267B (en) * | 2016-01-19 | 2017-11-03 | 吉林大学 | A kind of normally closed duplicate gear gearbox of clutch and its shift process control method |
| CN109595306A (en) * | 2017-09-30 | 2019-04-09 | 比亚迪股份有限公司 | A kind of transmission system and its process for gear |
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| CN2895883Y (en) * | 2006-02-20 | 2007-05-02 | 陕西法士特齿轮有限责任公司 | Multi-shift combined secondary-box three middle shaft automative speed variator |
| CN2898448Y (en) * | 2006-05-16 | 2007-05-09 | 比亚迪股份有限公司 | Automatic speed variator |
| CN101220851A (en) * | 2007-01-11 | 2008-07-16 | 福田雷沃国际重工股份有限公司 | Multi-stage transmission device of tractor |
| CN201382131Y (en) * | 2009-03-19 | 2010-01-13 | 重庆青山工业有限责任公司 | Mechanical type synchronous speed changer |
| CN204755782U (en) * | 2015-06-16 | 2015-11-11 | 吉林大学 | Fourth speed helping hand gearbox |
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