CN100532880C - Power shift type automatic transmission system - Google Patents

Power shift type automatic transmission system Download PDF

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Publication number
CN100532880C
CN100532880C CNB200810028051XA CN200810028051A CN100532880C CN 100532880 C CN100532880 C CN 100532880C CN B200810028051X A CNB200810028051X A CN B200810028051XA CN 200810028051 A CN200810028051 A CN 200810028051A CN 100532880 C CN100532880 C CN 100532880C
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China
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gear
clutch
power
shaft
driving
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Expired - Fee Related
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CNB200810028051XA
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CN101280826A (en
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罗玉涛
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South China University of Technology SCUT
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South China University of Technology SCUT
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Publication of CN100532880C publication Critical patent/CN100532880C/en
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Abstract

The invention discloses a power shifting type automatic speed change system. One end of an input shaft of the system is connected with a crankshaft of an engine, and the other end is connected with a planetary carrier of a planetary mechanism; a gear ring of the planetary mechanism and a sun gear are respectively connected with driving disks of a clutch I and a clutch II; one end of a brake I is fixedly connected on a shell of a gear box and the other end is connected with the gear ring of the planetary mechanism; one end of a brake II is also fixedly connected on the shell of the gear box and the other end is connected with the sun gear of the planetary mechanism; the driven disks of the clutch I and the clutch II are respectively connected with a power transmission shaft I and a power transmission shaft II of the gear box and are respectively connected with an output shaft through the gears of the power transmission shaft I and the power transmission shaft II. The speed changer can realize (m+n+m*n) shifts by (m+n) pairs of gears through combined use of the planetary mechanism, the clutch and the brake, and at the same time, the automatic speed change system can realize power shift transmission by engaging a gear in advance.

Description

A kind of power shift type automatic transmission system
Technical field
The present invention relates to the automatic speed-changing system in the machine driven system, particularly relate to a kind of power shift type automatic transmission system.
Technical background
The Economy of vehicle, power character, ride comfort not only depend on motor, and depend on the coupling of speed changer and speed changer and motor to a great extent.The manual shift transmission (MT) of Chu Xianing is the earliest realized the conversion of gear by clutch and manual shift shift fork, and this speed changer has simple in structure, compact appearance, the transmission efficiency height, and the reliability height, low cost and other advantages is used comparatively extensive.But because vehicle is in shift process, must cut-off clutch, cause power interruption, influenced the power character and the ride comfort of vehicle.Can realize power gear shifting by the hydraulic automatic speed variator (AT) that fluid torque converter and planetary gears are formed, overcome the shortcoming that manual shift transmission shift process medium power interrupts, and realized self shifter.Steel band stepless speed variator (CVT) then is by changing the radius of clean-up of belt wheel, make the stepless variation of transmission ratio, can make motor always work in best operating point, the performance of vehicle being improved greatly.Along with the appearance of world energy sources crisis, day by day the blocking up of urban road, the automobile power transmission device is also changing.The present age, fuel economy, discharging and ride comfort were more paid attention in the development of automobile; a kind of new technology one electric control mechanical type automatic speed variator (AMT) that is better than traditional automatic transmission (AT) at aspects such as transmission efficiency and cost of production is developed; because the advantage that it has the existing manual transmission production investment of the desired high fuel economy of present automobile industry development, low emission and protection has been subjected to the attention of each big automobile factory.
The working principle of AMT has determined it at first to want cut-off clutch in shift process, then speed changer is plucked neutral, block selecting again, gearshift, last engaging clutch.Like this, after clutch separation, before clutch engages again again, the power of motor can not be passed to wheel and go the powered vehicle operation, so produced the interruption of transmission of power in the shift process, vehicle certainly leads to retardation, and the gearshift time is long, brings adverse effect for the acceleration, travelling comfort etc. of vehicle.
In order both to make full use of the advantage that AMT has, can eliminate the shortcoming that it interrupts power gear shifting again, people work out a kind of double-clutch automatic gearbox (Dual Clutch Transmission is called for short DCT).In principle, the DCT system is used alternatingly 2 cover clutch-variable-speed gear systems, and wherein a cover is responsible for the speed change of odd number retainings such as 1 retaining, 3 retainings, 5 retainings; The speed change that even numbers such as another set of responsible 2 retainings, 4 retainings and 6 retainings keep off and reverse gear.The principle of DCT system as shown in Figure 5.DCT with the gear of speed changer by strange, even number is arranged in two input shafts that clutch connect on, control the power gear shifting process that realizes by the sliding wear that engages synchronizer and clutch in advance.For example: when vehicle travels with 1 retaining, judge that as if ECU (Electrical Control Unit) vehicle promptly will rise up into 2 retainings, by control synchro actuator, in advance 2 retaining driven gears and synchronizer 2 are meshed that this moment, clutch 2 still was in separated state, 2 keep off also not transferring power; When reaching 2 retaining gearshifts during the moment, by solenoidoperated cluthes actuator, the separating action of clutch 1 and the joint action of clutch 2 are taken place simultaneously, guaranteed that the torque of motor is delivered to wheel continuously in the shift process, all the other ascending, descending retaining processes similarly.
Though the DCT system has realized power gear shifting, but still there are a lot of deficiencies, wherein mainly contain 2 points:
(1) have only an axle transferring power during DCT system works, another root is idle;
(2) the obtainable velocity ratio number of DCT system is limited by the gear logarithm, that is: the velocity ratio number of system equates with the gear logarithm.
Summary of the invention
The objective of the invention is to keep the advantage while of dual-clutch transmission automatic transmission power gear shifting, overcome the shortcoming of existing dual-clutch transmission, realize more velocity ratio with few gear logarithm.
The present invention sets up planetary mechanism and two breaks by improving existing double-clutch type automated mechanical transmission, and cooperates two clutches to use, and realizes realizing with few gear logarithm the purpose of more velocity ratio.
Purpose of the present invention is achieved through the following technical solutions:
A kind of power shift type automatic transmission system, comprise input shaft, output shaft, gear-box, control unit, gearshift driving mechanism and speed probe, engagement cover in gear shift driving mechanism and the gear-box is connected, control unit respectively with one of input shaft, output shaft, power transmission shaft and power transmission shaft two on speed probe be connected with gear shift driving mechanism signal; This system also comprises planetary gears, two clutches and two breaks; The bent axle of described input shaft one end and motor links, and the planet carrier of the other end and planetary mechanism links; The gear ring of planetary mechanism and sun gear then link to each other with two driving disc of one of clutch and clutch respectively; One end of one of break is fixed on the shell of gearbox, and the other end then is connected with the gear ring of planetary mechanism; An end of two of break also is fixed on the shell of gearbox, and the other end then is connected with the sun gear of planetary mechanism; Two driven disc of one of clutch and clutch is connected with two of power transmission shaft with one of power transmission shaft of gear-box respectively, and two gear by one of power transmission shaft and power transmission shaft is connected with output shaft respectively.
Be set with forward gear one of driving gear and two of driving gear on one of described gear-box medium power transmission shaft; Power transmission shaft two on be set with forward gear with the driving gear gear three, four and transmission of power reverse gear of driving gear, driving gear respectively with output shaft on four driven gears engagements; The reverse gear sky is enclosed within on the reverse gear shaft, respectively with power transmission shaft two on transmission of power reverse gear and the engagement of the driven reverse gear on the output shaft.
Two power transmission shafts of described gear-box are connected with the secondary part of two engaging and disengaging gear respectively; Be set with forward gear one of driving gear and two of driving gear on one of power transmission shaft; Power transmission shaft two on be set with forward gear with the driving gear gear three, four and transmission of power reverse gear of driving gear; Driving gear on one of power transmission shaft respectively with one of jack shaft on driven gear engagement; Power transmission shaft two on driving gear respectively with jack shaft two on driven gear engagement, the reverse gear sky is enclosed within on the reverse gear shaft, respectively with power transmission shaft two on the transmission of power reverse gear and jack shaft two on driven reverse gear engagement; Two jack shafts mesh by the driven gear on intermediate gear and the output shaft respectively.
A kind of power shift type automatic transmission system, comprise input shaft, output shaft, gear-box, control unit, gearshift driving mechanism and speed probe, engagement cover in gear shift driving mechanism and the gear-box is connected, control unit respectively with one of input shaft, output shaft, power transmission shaft and power transmission shaft two on speed probe be connected with gear shift driving mechanism signal; This system also comprises planetary gears and two double sided clutches; The bent axle of described input shaft one end and motor links, and the planet carrier of the other end and planetary mechanism links; The gear ring of planetary mechanism and sun gear then link to each other with two driving disc of one of double sided clutch and double sided clutch respectively; Two driven discs of one of double sided clutch link to each other with one of gearbox power transmission shaft with case of transmission respectively; Two driven discs of two of double sided clutch link to each other with two of gearbox power transmission shaft with case of transmission respectively.
Working principle of the present invention:
The present invention adopts planetary mechanism to have two degrees of freedom, link to each other as power intake with the motor output terminal with its planet carrier, link to each other with two clutches of gearbox as output terminal with sun gear with gear ring, the power of motor input is through planetary mechanism, clutch, power transmission shaft, finally export by output shaft of gear-box.Its concrete work is by the control system of the automobile operation conditions current according to automobile, by the control to two clutches and two breaks, realizes that different interoperations is to reach different demands.Two jack shafts of gearbox can single work, also can two work simultaneously, but the output of power then all is to finish by output shaft.
Fig. 1 is the general principle figure of this speed changer.As shown in Figure 1, set up single planetary row planetary mechanism and two breaks between motor and gearbox, the bent axle of input shaft 2 one ends and motor 1 links, and the planet carrier 31 of the other end and planetary mechanism 3 links, as power intake.32 of the gear ring 33 of planetary mechanism 3 and sun gears link to each other with 2 52 driving disc of one of clutch 51, clutch respectively; One end of one of break 41 is fixed on the shell of gearbox 18, and the other end then is connected with the gear ring 33 of planetary mechanism 3; An end of 2 42 of break also is fixed on the shell of gearbox 18, and the other end then is connected with the sun gear 32 of planetary mechanism.Whether gear ring 33 and sun gear 32 rotate 2 42 the control that is subjected to one of break 41 and break respectively.2 52 driven disc of one of clutch 51 and clutch respectively with 2 62 of one of the power transmission shaft of gear-box 61 and power transmission shaft.Be set with on one of power transmission shaft 61 forward gear with one of driving gear 71, driving gear 3 73,5 75 and driving gear of driving gear 7 77; Power transmission shaft 2 62 on be set with forward gear with the driving gear gear 2 72, driving gear 4 74,6 76 and transmission of power reverse gear 78 of driving gear, these driving gears link to each other with four driven gears, 10 engagements on the output shaft 8 respectively.Reverse gear 16 skies are enclosed within on the reverse gear shaft 17, respectively be connected power transmission shaft 2 62 on transmission of power reverse gear 78 and the driven gear on the output shaft 8 10 engagement, realize reversing gear.Output shaft 8 is connected with main reducing gear 14, and main reducing gear 14 is connected with wheel 15.Engagement cover 9 by spline be installed in one of power transmission shaft 61 and power transmission shaft 2 62 on, between two driving gears of same power transmission shaft, control unit 11 respectively with one of power transmission shaft 61, power transmission shaft 2 62, speed probe 13 on the output shaft 2 of reverse gear shaft 17 and motor 1 is connected.Control unit 11 also is connected with gearshift driving mechanism 12 signals, and gearshift driving mechanism 12 is connected with a plurality of engagement covers 9 respectively.Control unit 11 endwisely slips by gear shift driving mechanism 12 driving engagement cover 9, by meshing with driving gear, power is delivered on the driving gear from power transmission shaft.By analysis to the current operation conditions of vehicle, one of control unit 11 may command clutches 51, clutch 2 52,2 42 interoperations of one of break 41 and break, its different situation of being used can obtain different velocity ratios.
The gearbox power transmission shaft difference of graduating power reportedly is broadly divided into three kinds of working conditions:
Be equipped with a plurality of (2n-1) driving gear on one of gearbox power transmission shaft 61; The gearbox power transmission shaft 2 61 on be equipped with a plurality of (2m) driving gear gear.n sBe the sun gear rotating speed; n rBe the gear ring rotating speed; Planet row special parameter k=n r/ n si 11 ', i 22 ', i 33 ', i 44 'Be respectively (n+m) velocity ratio to gear pair.
1,2 42 of one of clutch 51, the break (n that work simultaneously s=0), promptly one of clutch 5 engages, and 2 42 of break with sun gear 32 brakings simultaneously, have only one of gearbox power transmission shaft 61 transferring power in this case, and the driving gear on it can combine work with corresponding clutch collar, then this moment:
(1) clutch collar 9 engages with one of driving gear gear and can get velocity ratio: i 1=k*i 11 '/ (1+k);
(2) clutch collar engages with three of driving gear and can get velocity ratio: i 3=k*i 33 '/ (1+k);
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(n) corresponding clutch collar 9 engages with driving gear 7 it (2n-1) and can get velocity ratio:
i 2n-1=k*i (2n-1)(2n-1)′/(1+k)
2,2 52 of clutch, one of break 41 (n that works simultaneously r=0), promptly two of clutch 5 engage, one of break 4 has only 2 62 transferring power of gearbox power transmission shaft in this case with gear ring 33 brakings simultaneously, and the driving gear on it can engage transferring power with corresponding clutch collar, then this moment:
(1) clutch collar 9 engages with two of driving gear and can get velocity ratio: i 2=i 22 '/ (1+k);
(2) clutch collar 9 engages with four of driving gear and can get velocity ratio: i 4=i 44 '/ (1+k);
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(m) corresponding clutch collar 9 engages with driving gear it (2m) and can get velocity ratio:
i 2m=i (2m)(2m)′/(1+k)
3, two clutches engage work simultaneously, and two breaks are not braked, and two power transmission shafts of gearbox are transferring power simultaneously, then this moment:
One of driving gear on (1) two power transmission shaft, two engage simultaneously with re-spective engagement cover respectively and can get velocity ratio: i 12=(i 22 '+ k*i 11 ')/(1+k);
One of gear on (2) two power transmission shafts, four engage simultaneously with re-spective engagement cover respectively and can get velocity ratio: i 14=(i 44 '+ k*i 11 ')/(1+k);
Driving gear on (3) two power transmission shafts three, two engage simultaneously with re-spective engagement cover respectively and can get velocity ratio: i 23=(i 22 '+ k*i 33 ')/(1+k);
Driving gear on (4) two power transmission shafts three, four engage simultaneously with re-spective engagement cover respectively and can get velocity ratio: i 34=(i 44 '+ k*i 33 ')/(1+k);
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Driving gear on (5) two power transmission shafts it (2n-1), 2m engage simultaneously with re-spective engagement cover respectively and can get velocity ratio: i (2n-1) (2m)=(i (2m) (2m ')+ k*i (2n-1) (2n-1) ')/(1+k).
With respect to prior art, advantage of the present invention:
(1) this speed changer is by setting up planetary mechanism, two breaks, and make its engagement clutch use realize that to gear (wherein m is the number of gears of a gearbox power transmission shaft to (m+n+m*n) individual gear number by (m+n), n is the number of gears of another power transmission shaft), improved its power character and fuel economy greatly.
(2) use double clutch construction, realized the power gear shifting performance, thereby improved the power character and the ride comfort of vehicle greatly.
(3), therefore make it can be widely used in that gear number is had the various different vehicles that require because speed changer of the present invention can be realized (m+n+m*n) individual gear velocity ratio to gear by (m+n).
(4) require to significantly reduce the quantity of gear, thereby to have dwindled its volume and weight under certain situation in gear number, make and on vehicle, arrange easilier.
Description of drawings
Fig. 1 is the structural principle schematic representation of power shift type automatic transmission system of the present invention.
Fig. 2 is the structural representation of the embodiment of the invention 1.
Fig. 3 is the structural representation of the embodiment of the invention 2.
Fig. 4 is the structural representation of the embodiment of the invention 3.
Fig. 5 is the principle schematic of existing DCT speed changer.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples, but the specific embodiment of the present invention is not limited thereto.
The transformation of the speed changer of the double-clutch automatic transmission car of 1: four forward gear of embodiment
As shown in Figure 2: set up single planetary row planetary mechanism and two breaks between motor and gearbox, the bent axle of input shaft 2 one ends and motor 1 links, and the planet carrier 31 of the other end and planetary mechanism 3 links, as power intake.32 of the gear ring 33 of planetary mechanism 3 and sun gears link to each other with 2 52 driving disc of one of clutch 51, clutch respectively; One end of one of break 41 is fixed on the shell of gearbox 18, and the other end then is connected with the gear ring 33 of planetary mechanism 3; An end of 2 42 of break also is fixed on the shell of gearbox 18, and the other end then is connected with the sun gear 32 of planetary mechanism.Whether gear ring 33 and sun gear 32 rotate 2 42 the control that is subjected to one of break 41 and break respectively.2 52 driven disc of one of clutch 51 and clutch respectively with 2 62 of one of the power transmission shaft of gear-box 61 and power transmission shaft.Be set with forward gear 2 73 of one of driving gear 71 and driving gear on one of power transmission shaft 61; Power transmission shaft 2 62 on be set with forward gear with the driving gear gear 3 72,4 74 and transmission of power reverse gear 78 of driving gear, these driving gears link to each other with four driven gears, 10 engagements on the output shaft 8 respectively.Reverse gear 16 skies are enclosed within on the reverse gear shaft 17, respectively be connected power transmission shaft 2 62 on transmission of power reverse gear 78 and the driven reverse gear on the output shaft 8 10 engagement, realize reversing gear.Output shaft 8 is connected with main reducing gear 14, and main reducing gear 14 is connected with wheel 15.Engagement cover 9 by spline be installed in one of power transmission shaft 61 and power transmission shaft 2 62 on, between two driving gears of same power transmission shaft, control unit 11 respectively with one of power transmission shaft 61, power transmission shaft 2 62, speed probe 13 on the output shaft 2 of reverse gear shaft 17 and motor 1 is connected.Control unit 11 also is connected with gearshift driving mechanism 12 signals, and gearshift driving mechanism 12 is connected with a plurality of engagement covers 9 respectively.Control unit 11 endwisely slips by gear shift driving mechanism 12 driving engagement cover 9, by meshing with driving gear, power is delivered on the driving gear from power transmission shaft.By analysis to the current operation conditions of vehicle, one of control unit 11 may command clutches 51, clutch 2 52,2 42 interoperations of one of break 41 and break, its different situation of being used can obtain different velocity ratios.
Can establish n sBe the sun gear rotating speed; n rBe the gear ring rotating speed; Planet row special parameter k=n r/ n si 11 ', i 22 ', i 33 ', i 44 '(from big to small arrange) be respectively one of driving gear 71, driving gear 2 72,3 73 and driving gear of driving gear 4 74 respectively with driven gear 10 velocity ratio of totally four pairs of gears.
Below be the velocity ratio situation that break in the present embodiment, clutch difference are used situation:
1,2 42 of one of clutch 51, the break (n that work simultaneously s=0), promptly one of clutch that is connected with gear ring 33 51 engages, and 2 42 of break with sun gear 32 brakings simultaneously, have only one of gearbox power transmission shaft 61 transferring power in this case, 3 73 of one of driving gear 71 or driving gear can engage transferring power with clutch collar 9, then this moment:
(1) one of driving gear 71 engages with clutch collar 9 and can get velocity ratio: i 1=k*i 11 '/ (1+k);
(2) 3 73 of driving gear engage with clutch collar 9 and can get velocity ratio: i 3=k*i 33 '/ (1+k);
2,2 52 of clutch, one of break 41 (n that works simultaneously r=0), promptly 2 52 of the clutch that is connected with sun gear 32 engage, one of break 41 has only 2 62 transferring power of gearbox power transmission shaft in this case with gear ring 33 brakings simultaneously, 4 74 of 2 72 or driving gear of driving gear can combine transferring power with clutch collar 9, then this moment:
(1) 2 72 of driving gear engages with clutch collar 9 and can get velocity ratio: i 2=i 22 '/ (1+k);
(2) 4 74 of driving gear engage with clutch collar 9 and can get velocity ratio: i 4=i 44 '/ (1+k);
3,2 52 of one of clutch 51 and clutch engage work simultaneously, 2 42 of one of break 41 and break do not braked, 2 62 while transferring power, then this moments of one of gearbox power transmission shaft 61 and power transmission shaft:
(1) 2 72 of one of driving gear 71, driving gear engages simultaneously with clutch collar 9 respectively and can get velocity ratio: i 12=(i 22 '+ k*i 11 ')/(1+k);
(2) 4 74 of one of driving gear 71, driving gear engage simultaneously with clutch collar 9 respectively and can get velocity ratio: i 14=(i 44 '+ k*i 11 ')/(1+k);
(3) 3 73 of driving gear, 2 72 of driving gear engage simultaneously with clutch collar 9 respectively and can get velocity ratio: i 23=(i 22 '+ k*i 33 ')/(1+k);
(4) 3 73 of driving gear, 4 74 of driving gear engage simultaneously with clutch collar 9 respectively and can get velocity ratio i 34=(i 44 '+ k*i 33 ')/(1+k).
When vehicle with velocity ratio i 1During work, 2 42 of one of clutch 51 and break engage simultaneously at this moment, the sun gear 32 of planetary mechanism 3 is braked, this moment, planetary gear train became fixed shaft gear train, planet carrier passes to gear ring 33 with the power of motor 1 output, through one of one of one of clutch 51, gearbox power transmission shaft 61 and driving gear 71, driven gear 10, finally by output shaft 8 outputs; The conversion of gear then is that control unit decides according to running state of the vehicle, if this moment, control unit judged that vehicle need be with velocity ratio i 2Work, then can be by control gearshift driving mechanism, in advance 2 72 of driving gear is engaged with clutch collar 9,2 52 of clutch are in separated state at this moment, 2 62 transferring power not also of power transmission shaft, wait to reach certain gearshift during the moment, 2 52 of clutch is engaged, 2 42 of break unclamps, one of clutch 51 separates simultaneously, 41 brakings of one of break, through after this process, speed changer is just finished the gearshift program, and this moment, gear ring 33 just was braked, and power then has planet carrier 31 through sun gear 32,2 52 of clutch, 2 62 of power transmission shaft axle, 2 72 of driving gear, driven gear 10 is by output shaft 8 outputs; If control unit judges that vehicle need be with velocity ratio i 12Work, that is: two power transmission shafts need be worked simultaneously, to be in power transmission shaft under the idling conditions 2 62 on driving gear 2 72 hang in advance, when reaching gearshift constantly the time, solenoidoperated cluthes 2 52,2 42 actions of break, 2 52 of clutch is engaged, 2 42 of break separates the end braking, by two-way output, work simultaneously by two input shafts of gearbox through gear ring 33, sun gear 32 for the power that this moment, motor inputed to planet carrier 31, obtains a different velocity ratio output.Other gearshift principle is same as described above, enumerates no longer one by one herein.
This shows the function that only just can realize 8 gears with 4 pairs of gears, this is that other speed changer is incomparable.Because for other fixed axis gear formula gearbox, what are arranged, only can obtain being equal to several gears of gear mesh to engaging gear; Secondly, speed changer of the present invention can be by the realization power gear shifting of putting into gear in advance.This model utility speed changer also can select for use the gear of varying number to use according to the different requirements of various automobiles to power character and Economy simultaneously.
Embodiment 2
As shown in Figure 3.Its structural configuration is substantially the same manner as Example 1, and just gearbox increases by two middle transition axles.Be set with forward gear 3 73 of one of driving gear 71 and driving gear on one of power transmission shaft 61; Power transmission shaft 2 62 on be set with forward gear with driving gear 2 72,4 74 and transmission of power reverse gear 78 of driving gear; One of driving gear on one of power transmission shaft 61 71 and driving gear 3 73 respectively with one of jack shaft 201 on driven gear 10 engagement; Power transmission shaft 2 62 on driving gear 3 73 and driving gear 4 74 respectively with jack shaft 2 202 on driven gear 10 engagement, reverse gear 16 skies are enclosed within on the reverse gear shaft 17, respectively with power transmission shaft 2 62 on transmission of power reverse gear 78 and jack shaft 2 202 on driven reverse gear 10 engagement.Two jack shafts are respectively by 10 engagements of the driven gear on intermediate gear 21 and the output shaft 8.
The connection layout of remaining part is identical with embodiment 1, and the working principle of present embodiment is substantially the same manner as Example 1, is not repeated herein.
Embodiment 3
As shown in Figure 4.Be used for identical transmission for vehicles with embodiment 1.Its concrete layout is to set up a single planetary row planetary mechanism 3 between motor and gearbox, and cooperates two double sided clutches to use.The planet carrier 31 of planetary mechanism is connected with the output shaft of motor 1 as power intake, and the gear ring 33 of planetary mechanism 3 links to each other with the driving disc (being integral with the shell of double sided clutch) of two clutches respectively as clutch end with sun gear 32.Different is to have adopted two double sided clutches with embodiment 1.Two driven discs of one of double sided clutch 45 can be regarded two output terminals as, and wherein an end and case of transmission 18 fix as one, and the other end links to each other with one of gearbox power transmission shaft 61; In like manner 2 46 of double sided clutch ends and speed change mutually housing fix as one, the other end links to each other with 2 62 of gearbox power transmission shaft.
As shown in Figure 4, its gearshift principle is identical with embodiment 1, and its difference is that present embodiment has adopted two double sided clutches, and has removed two breaks, makes structure simple relatively.Whether gear ring 33, sun gear 32 rotate the joint situation that then depends on two driven discs of double sided clutch, if the driving disc of one of clutch 45 moves to left, 2 46 driving disc of double sided clutch moves to right, gear ring 33 terminations are closed transferring power in this case, sun gear 32 is braked, and this moment, power transmitted by one of power transmission shaft 6; On the contrary, if 2 46 driving disc of double sided clutch moves to left, the driving disc of one of double sided clutch 45 moves to right, and the sun gear termination is closed transferring power in this case, and gear ring 33 is braked, and this moment, power transmitted by 2 62 of power transmission shaft; The joint if 2 46 of one of double sided clutch 45, double sided clutch all moves to left, that is: two power transmission shaft while transferring power can obtain different velocity ratios according to being used in like manner of different driving gears.Its gearshift principle and process are substantially the same manner as Example 1.

Claims (9)

1, a kind of power shift type automatic transmission system, comprise input shaft, output shaft, gear-box, control unit, gearshift driving mechanism and speed probe, engagement cover in gear shift driving mechanism and the gear-box is connected, control unit respectively with one of input shaft, output shaft, power transmission shaft and power transmission shaft two on speed probe be connected with gear shift driving mechanism signal; It is characterized in that: this system also comprises planetary gears, two clutches and two breaks; The bent axle of described input shaft one end and motor links, and the planet carrier of the other end and planetary mechanism links; The gear ring of planetary mechanism and sun gear then link to each other with two driving disc of one of clutch and clutch respectively; One end of one of break is fixed on the shell of gearbox, and the other end then is connected with the gear ring of planetary mechanism; An end of two of break also is fixed on the shell of gearbox, and the other end then is connected with the sun gear of planetary mechanism; Two driven disc of one of clutch and clutch is connected with two of power transmission shaft with one of power transmission shaft of gear-box respectively, and two gear by one of power transmission shaft and power transmission shaft is connected with output shaft respectively.
2, power shift type automatic transmission system according to claim 1 is characterized in that: described clutch is dry type or wet clutch; Described break is dry type or wet brake.
3, power shift type automatic transmission system according to claim 1 is characterized in that: described break is an electromagnetic brake; Described clutch is a magnetic clutch.
4, power shift type automatic transmission system according to claim 1 is characterized in that: described break or clutch are the break or the clutch of monolithic or multi-disc.
5, power shift type automatic transmission system according to claim 1 is characterized in that: described gearshift driving mechanism is that hydraulic driving, air pressure drive or motor-driven mechanism.
6, power shift type automatic transmission system according to claim 1 is characterized in that: described planetary mechanism is single-stage planetary mechanism or combined type planetary mechanism.
7, power shift type automatic transmission system according to claim 1 is characterized in that: be set with forward gear one of driving gear and two of driving gear on one of described gear-box medium power transmission shaft; Power transmission shaft two on be set with forward gear with the driving gear gear three, four and transmission of power reverse gear of driving gear, driving gear respectively with output shaft on four driven gears engagements; The reverse gear sky is enclosed within on the reverse gear shaft, respectively with power transmission shaft two on transmission of power reverse gear and the engagement of the driven reverse gear on the output shaft.
8, power shift type automatic transmission system according to claim 1 is characterized in that: two power transmission shafts of described gear-box are connected with the secondary part of two engaging and disengaging gear respectively; Be set with forward gear one of driving gear and two of driving gear on one of power transmission shaft; Power transmission shaft two on be set with forward gear with the driving gear gear three, four and transmission of power reverse gear of driving gear; Driving gear on one of power transmission shaft respectively with one of jack shaft on driven gear engagement; Power transmission shaft two on driving gear respectively with jack shaft two on driven gear engagement, the reverse gear sky is enclosed within on the reverse gear shaft, respectively with power transmission shaft two on the transmission of power reverse gear and jack shaft two on driven reverse gear engagement; Two jack shafts mesh by the driven gear on intermediate gear and the output shaft respectively.
9, a kind of power shift type automatic transmission system, comprise input shaft, output shaft, gear-box, control unit, gearshift driving mechanism and speed probe, engagement cover in gear shift driving mechanism and the gear-box is connected, control unit respectively with one of input shaft, output shaft, power transmission shaft and power transmission shaft two on speed probe be connected with gear shift driving mechanism signal; It is characterized in that: this system also comprises planetary gears and two double sided clutches; The bent axle of described input shaft one end and motor links, and the planet carrier of the other end and planetary mechanism links; The gear ring of planetary mechanism and sun gear then link to each other with two driving disc of one of double sided clutch and double sided clutch respectively; Two driven discs of one of double sided clutch link to each other with one of gearbox power transmission shaft with case of transmission respectively; Two driven discs of two of double sided clutch link to each other with two of gearbox power transmission shaft with case of transmission respectively.
CNB200810028051XA 2008-05-13 2008-05-13 Power shift type automatic transmission system Expired - Fee Related CN100532880C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200810028051XA CN100532880C (en) 2008-05-13 2008-05-13 Power shift type automatic transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200810028051XA CN100532880C (en) 2008-05-13 2008-05-13 Power shift type automatic transmission system

Publications (2)

Publication Number Publication Date
CN101280826A CN101280826A (en) 2008-10-08
CN100532880C true CN100532880C (en) 2009-08-26

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CN102720810B (en) * 2011-03-30 2016-03-02 比亚迪股份有限公司 Automatic transmission, the vehicle comprising this automatic transmission and process for gear thereof
JP5896647B2 (en) * 2011-08-30 2016-03-30 アイシン・エーアイ株式会社 Dual clutch automatic transmission
CN102487638B (en) * 2011-12-04 2013-07-31 一拖(黑龙江)东方红工业园有限公司 Gear shifting device for speed changing box of seedling planting machine
CN103010009B (en) * 2012-11-29 2016-02-10 河南科技大学 Electric vehicle powertrain and two gear variable-speed dynamic drivings device thereof
CN103256347B (en) * 2013-04-28 2015-07-15 河南科技大学 Multi-clutch transmission provided with conflux planetary gear set
CN104019195B (en) * 2014-06-24 2016-05-11 何东 A kind of differential coupling automatic transmission
WO2016131597A1 (en) * 2015-02-19 2016-08-25 Audi Ag Dual clutch transmission for a motor vehicle
CN106556333B (en) * 2015-09-25 2020-12-22 泰科电子(上海)有限公司 Method and sensor device for determining the position of a measured object

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CN2898448Y (en) * 2006-05-16 2007-05-09 比亚迪股份有限公司 Automatic speed variator
CN2924171Y (en) * 2006-05-31 2007-07-18 华南理工大学 Dual-clutch type automatic transmission for preventing two-gear from being locked

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