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    • 专利摘要:
    Method for the operation of a transmission unit, in particular a main transmission group (2) of a dual-clutch transmission (1) of multi-group design, the transmission unit comprising a first input shaft (EW1), at least one first shifting element (SI 1, S12) that is associated with the first input shaft (EW1) and that can be opened and closed for engaging a gear step, a second input shaft (EW2) and at least one second shifting element (S21, S22) that is associated with the second input shaft (EW2) and that can be opened and closed for engaging a gear step,the at least one first shifting element (SI 1, SI2) and/or the at least one second shifting element (S21, S22) is/are closed, without involvement in any drive power flow, in order to minimize rotational speed differences in the transmission unit.Fig. 1
    公开号:SE1550038A1
    申请号:SE1550038
    申请日:2015-01-19
    公开日:2015-08-12
    发明作者:Johannes Glückler；Bernard Hunold
    申请人:Zahnradfabrik Friedrichshafen；
    IPC主号:
    专利说明:

    2012 217 563 tiled on September 27, 2012 should lie provided. in that connection., for more exact information about the features of the present invention explicit reference should he made to the German patent application wvith. file number 1G 2612 217 STB iilt cl ori September 27, 2612. 'The technical features of that patent application. are to he regardecl as a constituent of the present tioctnnent. Features of the patent atipiication are teatures oi ”the present document, in particular inasrnuch as they are relevant tiir the method elainied heroin.
    The objective of the invention is in particular to operste the transmission unit With higher efficiency. ln particular, the transmission unit should he operated vvith reduced losses. in particular, the transmission unit should be operated with reduced drag torques. ln particular, during operation of the transmission unit drag torques, 'particularly nt hearings, seals anti / or synchronizers, should he reduced. in particular the transinission tinit should hc operatetl in such nianner that its life is extended and / or its design is improved, These olajectisfes are achieved * vvith a method for ogæerating a transmission tonit, in particular a rnain transmission. group of a duahclutch transmission offrnu1ti ~ group design, the transmission unit cornprising a first input shatt, associated tvith the first iiiptit shaft at at least one shitting element that can he opened anti closed in order to engage a gear step, a second iriput shaft and associated therevtfith at least one sliifting eletnent that can he opened and closed to engage a gear step, wflierein the at at least one tirst shifting elenient anáfor the at at least one second shiftiiig element is / are closed without involvernent in a drive power tlow in order to ininirnize rotationai stieed differences in the transmission unit.
    The transmission. unit can he operated in a. drive-train of a motor vehicle. 'The motor vehicle can he a commercial vehicle (Cltf). "The niiotor vehticle can he a freight-cairyiiig vehicle (PCllff). The motor tfeliicie can be a long ~ liaul truck. The drive-train can comprise an internal cornhustion engine. The drive ~ train can coinprise a dual clutch .. 'the drive ~ train can coniprise at least one drivahle wvheel.in the cirive-tirain, the transmission unit can lie arrangeti between the dual clutch and the at least one tirivahle wheel.
    The duahciutch transmission can cornprise a iirst transmission group and a second transrnissiori group. 'The duahcititcii transmission can be of coaxiai desigii. The: first transniission group can be a main transmission group). 'The main transmission group can be a step transmission. The main transmission can be a stationary transmission. The rnairi transmission groiip can be of conntershait design .. 'The second transmission group ean be an auxiiiary transmission group. The auxiiiary transmission. group can he a doimistrearn group. The auxiiiary 'transrnission group can be a range group. 'Tiie auxiiiarji' transmission can be a step transmission. The auxiiiary transmission group can be an epieyeiic gear set. The anxiiiary transmission group can be of pianetary design.
    The transmission iinit can cornprise a iirst partiet transmission. The Arst partiet transmission can be associated ivith the Rst input shaft, The first partiai transmission can Ihave tirst gear steps. The first partiai transmission can serve to engage the first gears.
    The transmission unit car: coniprise a second partiai transmission. The secrind partiet transmission can be associated With the second inpiit shaft. 'The second partiet transmission can hasfe second gear steps. 'Tfhe second partiai transmission can serve to engage the second gears.
    The duai eiuteh can comprise a first powershift eierneiit and. a second powershift property. “Ivi / 'ith the help of the dual eiutch the iirst inpiit shaft anti / or the second input siiaft can he connected to or separated from the internal conibnstion engine. When an input sha is corinected to the internal coinbustioii eiigine, a. power flow by Way of the corresponding partiet transmission is enabled. Wiien an. iiiput shati is separated irorn the iriternai eonibiistion engine, tiie eorresponding partiet transmission is free from load and gearvrheei steps can be shifted in that partiet transmission. Xifith the help of tiie diiai chitch. a power tion 'between the first input shaft and the second input shaft can be produced iiy nieans of an overiapping shitt, in that one powershift element is closed and at the saine tirne the other powershiit eiernent is opened. in this Way a shift betvtfeen gents in different partiai transrnissions is enabled, tvithoiit, or at least with reduced tractioii three interniption. The dnai-clutch transmission can the fuiiy ponfershi Abie. 'llie first and second input shafts can he ananged coaxially and ccnceiitrically * avith one another. The first input shall can be atranged at leaist in. pan inside the second input shaft.
    The second input shall can have a litillcw sliaft. 'lfhe transmission uçnit can have an output shaft. 'l he transmission unit can have a main axis .. The input slia s and the output shaft can he arranged on the main axis. 'Tlie transmission unit can coinprise at least one countershaft. 'The transmission unit can coinprise a. First countershatt and a second ccnntershatt. The tratisniission nnit can have at least one countershaft axis. The transmission unit can have a first countershait axis and a second countershaíl axis. The main artis and the at. at least one conntershaft axis can have a distance apart from one another.
    A gear step can compifise at least two gearwheels. A gear step can be a gearwlieel stage.
    A gear step can also he called a gearsct. The gearwlieels of a gear step can tfonn at least one gearwheel pair. The gearwlteels of a gear step can be arranged in a gear plane. A gear step can comprise a loose wheel and a fixed vvheel. Beta / een an input sliaít and the at least one conntershaít, gear steps can be arranged. The loose tvheels can lie arranged on. an input shaft. The fixed Wheels can be arranged on the at least one countetslia .
    The transmission aint can coniprise shifting devices. A shifting device can coniprise at least one shifting element. A shifting device can coinprise a single shifting elenient. A shifting device tvith a single shilliiig element can he described as a simple shiftiiig device.
    A shiftiiig device can coniprise tvvo shifting elements. A shifting device with ttvo shitfting elements can be described as a double sliifting eletnent. With the help of a shi Ing element a loose vvlteel of a gear step can lie connected to a shaft canying the loose wheel, or separated front a sha : carrying the loose wheel. Such connection can also he tlescrihed as closing of the shittiiig element, nfhereas separation can also be called opening of the shifting element. A shifting elenieiit can enable a shapednterloclted connection of a loose 'wheel to a shall carrying the loose Wheel. A shifting element can cornprise a claw clutcli. A shifting device can cornprise a shifting sleeve. A shi Ing element can coinprise a synchronizing device. A synchronizing device can enable a rediiction of a rolational speed difference. A sltifting aievice can he opened and closed by means of an actnating device. A shiftiiig device can he opened aind closed automatically.
    A shitfting device can be opened and closed by means of an actuator device. The actuator device cart cornprise at least one electric ntotor actuator. 'lfhe actnatcr device can contprise .st at least oine hydrztitlie actustor. 'the actuator device can eomprise et at least one electrtæhydrztulic nctuetor. A shifting detaice can be opened and closed vvith the help of a control unit, The control unit can serve to control the sctnator device. The traiismission unit can comprise a housing. "the transmission miit can coinprise hearings, 'lite transmission unit can contprise seals.
    'The transmission unit can coxnprise a first sliifting device. 'The' first shifting device can cornprise the att least orie tirst shiftirig element. 'The tirst shifting device can cornprise ttvo tfirst shifting elements. The transmission unit can cornprise a secorid shifting device. The second. shifting device can cornprise the at least one second shifting element. 'The second shitting device cart comprises two second shitting elements.
    Witli the help of the shifting elenients e drive povver tlow cart lie produced 'between an input sliaft and the output shsft. A shiftiiig element can be closed in order to transrnit drive powfer. A shiftitig element vis which no drive power is tiowirig can he opened or closed independently of any drive power flow. Opening or elosing of a shifting elernertt not involved in a, drive power tlow can bring shout changes of rotrttional speed ditierentces in the transmission unit. Opening or closing of a shiftiiig element not involved in a drive povver flow can miriirnize rotational speed differences, A sliitfting element not involved in any drive power Ow can be closed in order to rninimize rotational srieed differences in the transmission uriit.
    Xlèíith the help of the transmission unit various gears can 'oc engaged. 'the gears can he steppedv. The gears can tcrin e gear seqttence.
    The at least one tirst shifting element can. he closed Without being involved in a tirivfe pmver ilovv in the transmission unit in order to rninimize rotational speed differences, and the at least one second shifting element can he closed in order to transmit a drive potver.
    The transmission unit can compri se an. output shaft. The transmission unit can cornprise s third shifting device. The third shifting device can coinprise the third shitting element.
    The third shiíting element can he opened and closed in order to connect / separate the output shaft to / 'froni the first input shait. 'The transmission unit can cornprise a fourth shifting device. The foortli shifting device can coniprise at least one fourtli shiíting clenient. 'The fourth shiftiiig device can cornprise two iourth shi Ing elements. 'The at ieast one fourtli shifting eleinent can be associated vvith the output shait. 'The at least one tourth siiifting eigeniieiit can he opened and closed in order to engage a gear step.
    To obtain a first gear ratio of the transmission unit, a first shifting element can be closed in the transmission unit without iieing involved in a tlrive power iioiv, iii order to rnininiize rotational speed differences, a second sliiiting element can be closed in order to transmit drive poifver, the third sliiftiiig elenient can hc open anti a fourth shifting element can be closed in order to transmit drive pott / er.
    The at least one first shiiting element can he closed in order to tiansniit a drive povver and the at least one second shittiiig eiernent can be closed tvitiiout involvcrnent in any drive power ilow in order to rniiiimize rotational speed differences in the transmission unit, To obtain a second. gear ratio of the transmission tniit, a first siii ing element can 'oc closed in order to transinit drive power, a second. sliifting element can be closed. nfithoiit invoivement in any drive power .iílonf in order to ininirnize rotational speed differences in the transmission unit, the third shifting element can he opened and a fourtli shifting eiernent can be closed in order to transrnit drive ponfer.
    The third. shifitiiig element can be closed to transmit drive power and the at icast one tirst shifting eiemcnt and the at least one second shiiting element can he closed, ivithout involvcrnent in any drive power flow, in ortlei 'to niinirnize rotational speed differences in the transmission unit.
    To obtain a lthird gear ratio of the transmission unit, a tirst and a second shittiiig element can he closed tvitiioiit involvenieiit in any drive power Oiv in order to rninirnize rotational speed differences in the transmission unit, the third siiifting eigenieiit can 'oc closed in order to transrnit drive power, and the at least one tourth shitftinig element can 'oe opened.
    The first input sheft of the transmission unit can he connected to a first ponershift elernent of a dual clutch and the second input shall of the transmission nriit can he connected to a second poifaershift element of the dual clutch.
    To carry out a powershift, the first powershili element can he sliifted actively ironi a closed idle position to an open tiperating position or passively frorn the open operating position to the closed idle position and the second powersfhiñ element car: be sliiftetl. actively frorn an open operating position to a closed idle position or passively from. the closed idle position to the open operating position. 'lfhe first ponfersliift element can he a normally-closed clutch. The second poiøfershift element can he a iiornially-open clutch.
    To cany out a potversliift, the lirst ponfershift elenient and the second poivershift element can in each case he sliifted octively from nn open operating position. to a closed idle position., or passively froni the closed itlle position to the open operating position. The first powershilt element and the second potfvershift element can he norrnelly-open clutches.
    To carry out a powershilit, the first powershilt element can he shiifted aetively froin an open. operating position to a closed idle position or passively 'frorn the closed idle position to the open operating position, and the second pottfershift element een he s hiited actively from n closed idle position to an open opereting position or passitfely from the open opernting position to the closed idle ivositioii. flfhe rst powershift elenient can he a nonnally-rlpen clntcli and the second povvershiil element can he a norniallywclosed clutch.
    To obtain a fourth gear ratio of the transmission unit, the at, at least one first sliiftiiig element can he opened, a second sliilting element closed »without involvenient in any drive power 'flow in the transmission unit in order to rnininiize rotational speed differences, the third shifting element closed in order to transmit drive power and the at least one fonrth. sliifting element opened.
    To carry out a poiwershift, the tirst powershitt element and the second poiifershitt element can in. each case he actively sliifted front a closed idie position to an open orierating positiorr or passively from the open operating position to the closed ídle position. The first and second powershitt elernerrts can both he nonnally-closed clutches.
    The transmission tinit can cornprise at least one countershaft and the at least one first sliifting elernent and the at at least one second shifting elernent can he opened in order to decouple the at least orie countershalt. in this Way, once the shifting elements liave been ripened the at least one counterslraft can run domfn to rotational speed n = O.
    The transmission unit car: 'be connected to an additional transmission group, which additional transmission group can cornprise a Irst additional shiftirig element that can. he opened and closed. in rrrder to engage a gear step, and a second. additional sliifting element that can he opened and closed in order to engage a gear 'step. .ln order to obtain a first gear settoenct , the iirst additional shifting elernerit carl be tipened and the second additional sliifting element can he closed, whereas to obtain a second gear sequence, the tirst additional shifting element. car: he closed and the second additional shifting element can he opened.
    The method according to the invention makes it possible to reduce rotational speed diïllerenees in the transmission unit. The transrriissicrr unit can he operated iwitli greater efficiency., The transmission trnit can he operated rvith reduced losses. The transmission unit can he operated oflth reduced drag 'torfqoes During operation of the transmission unit drag torques, for exainple at hearings, Seals andffor synchronizers, are reduced,' The transmission ttnit can. he operated in such niannei 'that its life is extended aiid / or lt can he designed in a hetter vvay.
    Belmv, example emliodinrerrts of the rnethod according to the iriventitrn are described in rriore detail, ivith reference to the Gures. From the description, further features and advantages enrerge.
    'The Gures shove, sehematieaíijv' and as examples: Pig. i: A rionfersiiiftaibie dual-Gluten transmission of two ~ group design, With a inain group of eountershaft structure and an additional transmission of pianetary design, Fig. 2: A shifting, matrix for a duai-eïntch transmission with tvvo povvershi elements and nine shifting elements for powershi ing tvveive gears for forivard drive, and Fig. 3: A shifting matrix for a dual-sluten transmission ndth tvvo ponfersiiift eigients and eleven shifting eiernents for povversiiifting seventeen gears for forward drive and one gear for reverse drive .
    Fig. I shows a powershiiftabie dual-sluten transmission i of: info-group design, vvith a main: group 2 of eonntershaft structure and an additional transmission group 3 of piaiietary design, The main group 2 has Ife gear steps RI, R2, Rš, R4, RS for frirvvard drive and one gear step RR for reverse drive, "fire additional transmission group 3 has tvvo shiitabie gears and serves as a donfnstreani range group.
    The duai-ointeh transmission i has a drive input side and a drive output side AB. Tiie main group 2 is arranged on the drive input side AN of the dnai-einteii transmission i, The rnrairi group 2 iias a iirst input skaft EKVI and a second input shaft EW2. 'ifiie rst input shaft EW1 can be engaged in a power finn' vvith 'die iieip of a ñrst powersiii element Ki. The seeorid input shaft EXV2 can be engaged in a ponfer Ow with the heip of a second powershift eiernent KB. By aiteniating aetnation ofthe powersiiift eiernents Kl, KZ a power Ovv can be eiigaged hy suooessive changes between the Rst input siiaft EVi / 'i and the second input shs , Ein / Z. 'iifie first input skaft EWi and the second input shaft EWZZ are arranged coaxiaiiy and eoneerrtricaiiy on a main axis of the niain group 2. 10 The first inptit shaft EXV i is arranged paitiaíly inside the second input sha íšlViïï. The second input shaft EWZ is in »the forni of an iroiiotv shaft.
    The rnain group 2 has an output shaft AXV. In the present case the main group 2 has a first countershaft VWÉ and a second eountershaft Vid / lä. .Åiternativeíyg 'the main group 2 can also have only one eonnetershafi. 'ifhe input shatts tšlWi, EÉWZ and the output shaft Att' are arranged coaxialiy vvith one another on the rnaín axis of the main group 2. ”fire eotmtershatts VWÉ, 'iJXÉ / Q are eacir arranged parafiiei to the main axis and at a distance away front it, 'the gear steps RÅ, R2 serve, respectivelyiy, to direct power ñow between the second input shaft EWÉ and the countershafts Vin / t, VXV2. The gear steps Ri, RQ can together he disengaged from. a power ovv or, as desired, respectively engaged in a povver ow, The gear steps RS, E4- serve, respeetiveiyg, to direct porn / er iïovv tretween the first input shaft Ett / t and the conntershafts VWNI, VWÉ. The gear steps R3, 12.4 can together he disengaged from a power Ow or, as desired, respeetiveíy engaged in av power fiovtf. 'the gear steps RS, RR serve respectiveiy to direct a power ow between the eonntersha s VWi, VÉÅYZ arrd the output shaft AEV. * With the help of the gear step RR the rotationai direction of the output shaft AtW ean he reversed. 'the gear steps RS, RR can together he disengaged trorn a power how or, as desired, respectitfely engaged in a power ovv.
    The gear steps Ri, RZ each have a ioose vvheei associated with the second input shaft EVVLZ and fixed tvheels arranged en the courttershafts VVVI, VWZ. "fhe gear steps RS, R4 eaeir Ihave a loose wheel associated 'with the first input shaft EWI aird fixed wheels arranged on the countershafts VWL VEVZ. The gear steps Rš, RR each have a loose vaheei associated vvith the output shaft AW and fixed vvheeis arranged on the countershaflts ViN 1, * vWÄ / ÄZ.
    The main transmission 2 has shifting tievices S531, SEZ-Z, SES, Ställt. 'the shi ing device SE-i is arranged on the second ifrput shaft ÉEÉWÉ. The shifthig device SEZ is arranged and the 'first input shaft EXVE. in the present case, the sitifting device S53 is arranged on the output shaft AW. fälternatittzeïy, the shifting device SEB can also he arranged en the ffirst li input shsft litt / l .. The shifting device S134 is arranged on the otitpiit sliaft ATV. 'The shifting device SEl is a double sliifting device. The sliifting device Slššl lies shifting elenierits Sli, S12. 'Tlie shifting device SEZ is a double shifting device vvith shifting elements S21, S22. The shiiting detfiee is a siiigle sifting device, vvitli a shifting element S Šl .. 'The shifting device SE4 is a. Double sliifting device. 'The shifting device S34 has shifting elements S41., S42.
    The shifting eiemeiit S11 serves to engage the gear step Rl. The shifting element Sl2 serves to engage the gear step RB .. The shifting element SZI serves to engage the gear step RB. The shifting elenient S22 seives to engage the gear step R4. 'The shifting element S31 serves to etinneetfseparate the first input sliatt išlW l to / from the output shaft Allif. The shifting element S41 serves to engage the gear step RS. The shiiting element S42 seives to en gage the gear step RR.
    The additional transmission group 3 is arranged on the drive output side AB of the dittil- eltiteli transmission l. The additional transmission group serves to extend e gear step sequeiiee of the main group 2. 'llhe additional transmission group 3 has a. Iirst input shaft NEVi / 'l, a second input shaft NÅEW 2 and en riutpuit sheit NAW. The Rst and second input sliafts NEWÜ, are arrnnged eoaxially and eoneentrieally with one another. "lfhe first input shall NEVl / 'l is arranged partially inside the second input shaft' NElt / VIZ. The second input shaft NEWLZ is in the torin of a liollow 'sliaft. The additional transmission group 3 eoinprises e sttn gear Pl, planetary gearwheels , e earrier P2, n ring gear P3 and a housing 4. The first iiiptit shatt NEWI is etinneeted tixed to the sun gear P i. The second input shaft NEVVZ is connected iixed to the ring gear P3. The oittpitt shait fNftW 'is connected fixed to the earrier P2. The output shall AW 'of the main girotip 2 and the: first iiipnt sliaft NEltíl of the additional transmission group 3 are fornied with a common input / output shaft.' the additional transmission group 3 has a. shifting device SES. The shiliing tieviee S135 is a double shifting device nfith slfiifting elements SSl, S52. The shiftiiig elernent S51 serves to connect / separate the iiiptit / output shatt AVI., NlšWl toffroin the second input 12 shaft NEl / Vl The shifting element S52 serves two centered / separately e the second input shall; NEW 2 to / frttrn the housing 4.
    Pig, 2 shotfvs a shilting niatrix for a rlual-eluteh transmission 'with two powershift elenietifts Kl, K2 arid nine shifting elements S11, S12, S21, S22, S31, S41, S42, S51, S52 for powershittirig ttveive gears A, B, C, D, E, E12, F, G, H, I, J, K., išï, L for fortvard driving, liite the duahelttteh transmission 1 according to Fig. 1. in the shiftihg rnatrix, the rovrs represent the gears A , B, C., l), E, F, G, H, I, I, K, Kf, L and eohtrnns represent the shiftiiig elements S11, S12, S21, S22, S31, S41, S42, S51, S52. ln addition, in the shifting niatrix eoltimnts are shown for the powershift elements Kl, EZ. in the sliitting niatrix “IW and“ OK respeetiveiyç, denote elosed shitt conditions of the shittitig eiernents or powershift elements. in the shilting matrix “X7 denotes a closed shift condition of shitting eientents via» which drive povver is transmitted. ln the ehiltirng ntatrix “()” denotes a closed shift condition of shitting eietnents, in tvhieh the shifting element eoneerneti is not intvrtived in drive pott / er flow arid is only closed in order to rninimize rotational speed differences in the transmission unit, in gear ratio A, the potversiiift eietnent Kl and the shifting elements S12, S22, S41, S52 are closed, Whereas the other shifting elements are open in gear ratio B, the powershitt element KZ aind the shitting eigenients S11, S31, S41, S52 are closed and the other shitftirig elements are open, ln gear ratio C, the powershift element Kl anrl the shifting elements S12, S21, S41, S52 are closed, while the other shi ing eiernents are open. ln gear ratio D, the potvershift element: 11-112 and the shifting elements S12, S31, S41, S52 are closed and the other shiftiiig elements are open. in gear ratio E, the poiafersliift element Kl and the shifting elements S12, S22, S31, S52 are closed vtfhile the other shifting elements are open. in gear ratio the potvershift element Kl and. the sitifting elerneitts S31, S52 are closed tifhile the other shifting elements are expert. 'l “hus, the eottnteirshafts are deeoupled. in gear ratio F, the powershift elenieitt l are closed. and the other shiftirrg elenieiits are open. In gear ratio (i, the ttowersltift elernent Kl and the shifting elements S12, S22, S41, S51 are closed and the other shifting elements are open. Ln gear ratio H, the povverslii Element 15.2 and the shifting elements _13 S11, S31, S41, SSl are closed and the other shíftirtg elements are open, ln gear ratio l, the powershift eientent Kl and. The shilting eiernerrts S12, S21, S41., S51 are closed and the ttther shifting eletnents are open. In gear ratin J, the ttovrersliíft element K2 anti the shifting elements S12, S31, S41, S51 are closed and the other shiitíng elements are open. in gear ratio K, the powershíft elernettt Kl and the shifting elements S12, S22, S31, S51 are closed and the other shitting elements are open .. In gear ratio K *, the povvershift eiernent Kl and the shiïttittg eiemetits S31, S51 are closed and the other shifting elements are open. Thus, the countersha s ere deeoitpleti. in gear ratio 1 .., the potavershitft element K2 and the shiftittg elements S11, S22, S31, S5 1 are closed and the other sitifting elements are open.
    A shift between gears ratios A, C, E, G, 1, K, K *, L, Which enn. he engaged in a pott / er flow vtfith the help of the powershitt element Kl, on the one ltand, and the geers ratio B, l), F, H, J, L, tßzhich enn be engaged in a pott / er llow With the help of the powershift element K2, on 'the other itand, enn take place With ttotversltifting. 'the povaershift element Kl een have a preferred closed conditinn (nonnalljtf closed) and the potvershi element K2 een have a preferred. open condition (norrnaliy open). The twowershlft element Kl earn he rtornialiy open and the ponfershíft eiernertt K2 enn he rtorrnelly open. 'the potfvershift element Kl een he norrnally open and the powershift element K2 can he norrnally closed.
    Fig. 3 shows a shifting matrix .for a cluetl-oluteh transmission tvith two powershift eletnents Kl, K2 and nine shifting elements S11, S12, S21, S22, S31, S41, S42, S51, S52 for the poinershifting of tt Relve gears ratios A, B, C, D, E, 1Éi *, ll GH l, J, K, Kit, L for tbrwnrd driving, like the dnaheluteh transmission 1 according to Pig. 1. in the shifting ntatrix, the rows represent the gents ratios A, B, (i, l), E, E *, GH i, J, K, K *, i .. and eoiurnns represent the shifting elements S1 l, S12, S21, S22, S31, S41, S42, S51, S52. ln addition, in the shifting matrix colitntns ere provided for the powershift elements Kl, Kl. ln the shifting matrix, “X” and “ÛÄ respeetively, dertote closed shift ertnditiorts of the shitting elements or potversltíft elernents. ln the shifting ntatrix, “X” dettotes a closed shift cortdition of shifting elernertts via »which drive power is transmitted. l4 ln tlte shilfting matrix, ”Ti” denotes a closed shift condition of shilting elernents, in yyhieh the slrlftlng element eoneernetl is ttot involved in a drive tvower oyv and is only closed ln order to minirnize rotatlonal speed ditlferenees in the transmission unit. ln gear ratio A, the powershlft elernerrts Kl, Kl and the shittlng elements S22, S41, S52 are closed, tyhile the other shiftmg elements are open. 'lhe drive pen / er tlotvs hy way of the powershift element Kl, vvhereas the potyershíft element KI ”. only gotfems the rotational speed. ln gear ratio B, the powershilt elements Kl, KZ and the shifting elements Sl l, S41, S52 are closed tvhile the other shifthtg elements are open. The drive prao / er llotvs hy 'way of the powershltt element K2,' wherees the powershlft element Kl only governs the rotational speed, ln. gear ratio (f, the powershitt elements Kl, KP; and the shifthrg elements S21, S41, S52 are closed tyhile the other shlfting elements are open.
    Britfe poyver tlows hy may of the povøershlft element Kl, tyhile the potvershilt element KB only! governs the rotational speed. ln gear ratio D, the powersltl elements Kl, KZ and the shifting elements S12, S41, S52 are closed whereas the other shlfting elements are open. Drive pott / ver tlows hy tfvay of the powershitt element KZ, while the ponferslti element Kl only 'governs the retational speed, ln gear ratio lšl, the powershift elements Kl, KE and the shlfting elements S22, S3 l, S52 are closed arta the other shiftlng elements are- open. lfšriye power oyvs hy tvay of the povvershift element Kl yvhile the potvershift elentettt IQ only gotfems the rotatíonal speed. ln gear ratio E *, the powershilt elements Kl, KZ and. the shiftlng elements S31, S52 are elosetl and the other shitting elentertts are open. lšrive potver flows hy 'vvay of the powershilt element til, whereas the povtzershitt element K2 only governs tlte rotational speed. Thus, the eountershalts are deeoupled. ln gear ratio F, the powelrshlft element KZ and the shlftíng elements Sl l, S22, S31, S52 are closed, While the other shiftlng elements are open. ln gear ratio G, the powershift elements Kl, KZ and the shilíittg elements S22, Stl-l, SSl are closed whereas the other shiftlng elentettts are open. Drive power flows hy way of the poyyersltift element Kl, nfhlle the povvershih element K2 only governs the rotational speed. ln gear ratio ll, the powershlft elements til, KZ and the shlfting elements Sl l, S41, S51 are elosetí and the other shithng elements are open. Drive power tlows hy Way of the povvershift element Kl, nfhile the povvershlft eletnent Kl onlye governs the rotational speed. ln gear ratio l, the pot / ershlft elements Kl, K2 and the shifting elements S21, S4l, S51 are elttsetl, tvlhlle 15 the other shlfthtg elements are open. Drive pov- / er llovvs hy way of the powershitt element Kl, tvhereas the petvershift elenterat Klä only governs the retatienal speed. ln gear ratio J, the powerslhift elements Kl, KB and the shifting eletnents SlZ, S41, S51 are closed and the other shlfting elements are open. Drive power tlews hy tfvay of the potvershitt element KZ, while the powershíft element Kl only geverns the rotatlonal speed. ln gear ratio K, 'the powershift elentents Kl, X2 and the shifthtg elements S22, S3 l, S51 ere closed and the other shlfting elements are opens, »Ürive power tlottfs by tßzay of the powershl element; Kl While the powershift element KE only geverns the rotational speed. ln gear ratio K *, the powershift elements Kl, X2 and the shifting elements Sill, S51 are closed ttfhile the other slitifting elements are orten. Dríxfe power flows by way of the potvershitt element Kl, while the powfershlft element KZ only gotferns the rotatlonel speed, Thus, the eountershatts are clecoupled. ln gear ratio L, the powershift element KLZ and the shifting elements S11, S22, S31, S51 are closed, tvhíle the other shi zing elements are open.
    A shítt between the gears ratlos få, C, E, Eli, G, l, K, KFF, l on the one hand and the gears ratios B, D, F, H, J, L en the other ltand can be carried out vøith potvershift. The powershitl: elements Kl, KL yet each. have a preferred open pesition (normally open). "the potvershl elements Kl, KÅZ can each ltave a preferred closed position (normally closed).
    权利要求:
    Claims (15)
    [1] 1. I. Method for the operation of a transmission unit, in particular a main transmission group (2) of a dual-clutch transmission (1) of multi-group design, the transmission unit comprising a first input shaft (MVO, at least one first shifting element (S11, S12) that is associated with the first input shaft (EWI) and that can be opened and closed for engaging a gear step, a second input shaft (FAQ) and at least one second shifting element (S21, S22) that is associated with the second input shaft (EW2) and that can be opened and closed for engaging a gear step, characterized in that the at least one first shifting element (S11. S1.2) and/or the at least one second shifting element (S21, S22) is/are closed, without involvement in any drive power flow, in order to minimize rotational speed differences in the transmission unit.
    [2] 2. Method according to Claim 1, characterized in that the at least one first shifting element (S12) is closed, without involvement in any drive power flow in the transmission unit, in order to minimize rotational speed differences, and the at least one second shifting element (S21, S22) is closed in order to transmit a drive power.
    [3] 3. Method according to Claim 2, characterized in that the transmission unit comprises an output shaft (AW), a third shifting element (S31) that can be opened and closed in order to connect/separate the output shaft (AW) to/from the first input shaft (EW1) and at least one fourth shifting element (541, S42) that is associated with the output shaft (AW) and that can be opened and closed for engaging a gear step, and to obtain first gears (A, C, G, I) of the transmission unit a first shifting element (S12) is closed, without involvement in any drive power flow in the transmission unit, in order to minimize rotational speed differences, a second shifting element (S21, 522) is closed in order to transmit a drive power, the third shifting element (S31) is opened, and a fourth shifting element (S41) is closed in order to transmit a drive power.
    [4] 4. Method according to Claim 1, characterized in that in order to transmit a drive power the at least one first shifting element (S11, S12) is closed and the at least one second shifting element (S22) is opened. 17
    [5] 5. Method according to Claim 4, characterized in that the transmission unit comprises an output shaft (AW), a third shifting element (S31) that can be opened and closed in order to connect/separate the output shaft (AW) to/from the first input shaft (EW1), and at least one fourth shifting element (S41, S42) that is associated with the output shaft (AW) and that can be opened and closed in order to engage a gear step, and to obtain second gears (B, 1), 1-1, J) of the transmission unit a first shifting element (S11, S12) is closed in order to transmit a drive power, a second shifting element (S22) is opened, the third shifting element (S31) is closed, without involvement in any drive power flow, in order to minimize rotational speed differences, and a fourth shifting element (S41) is closed in order to transmit a drive power.
    [6] 6. Method according to Claim 1, characterized in that the transmission unit comprises an output shaft (AW) and a third shifting element (S31) in order to connect/separate the output shaft (AW) to/from the first input shaft (EW I), and the third shifting element (S31) for transmitting a drive power and the at least one first shifting element (S12) and also the at least one second shifting element (S22), without involvement in any drive power flow, are closed in order to minimize rotational speed differences in the transmission unit.
    [7] 7. Method according to Claim 6, characterized in that the transmission unit comprises at least one fourth shifting element (S41, S42) associated with the output shaft, that can be opened and closed to engage a gear step, and to obtain third gears (E, K) of the transmission unit a first shifting element (S12) and a second shifting element (S22) are closed, without involvement in any drive power flow in the transmission unit, in order to minimize the third shifting element (531) is closed in order to transmit a drive power, and the at least one fourth shifting element (S41, S42) is opened.
    [8] 8. Method according to at least one of Claims 1 to 7, characterized in that the first input shaft (EW1) of the transmission unit is connected to a first powershift element (K1) of a dual clutch and the second input shaft (EW2) of the transmission unit is connected to a second powershift element (K2) of the dual clutch, and to carry out a 18 powershift the first powershift element (KI) is changed actively from a closed idle position to an open operating position or passively from the open operating position to the closed idle position and the second powershift element (K2) is changed actively from an open operating position to a closed idle position or passively from the closed idle position to the open operating position.
    [9] 9. Method according to at least one of Claims 1 to 8, characterized in that the first input shaft (EW1) of the transmission unit is connected to a first powershift element (K1) of a dual clutch and the second input shaft (EW2) of the transmission unit is connected to a second powershift element (K2) of the dual clutch, and to carry out a powershift the first powershift element (K1) and the second powershift element (K2) are each changed actively from an open operating position to a closed idle position or passively from the closed idle position to the open operating position.
    [10] 10. Method according to at least one of Claims 1 to 8, characterized in that the first input shaft (EW1) of the transmission unit is connected to a first powershift element (K1) of a dual clutch and the second input shaft (EW2) of the transmission unit is connected to a second powershift element (K2) of the dual clutch, and to carry out a powershift the first powershift element (K1) is changed actively from an open operating position to a closed idle position or passively from the closed idle position to the open operating position and the second powershift element (K2) is changed actively from a closed idle position to an open operating position or passively from the open operating position to the closed idle position.
    [11] 11. Method according to Claim 1, characterized in that the transmission unit comprises an output shaft (AW), a third shifting element (S31) that can be opened and closed in order to connect/separate the output shaft (AW) to/from the first input shaft (EW1), and at least one fourth shifting element (S41, S42) that is associated with the output shaft (AW) and that can be opened and closed in order to engage a gear step, and to obtain fourth gears (E, K) of the transmission unit the at least one first shifting element (S11, S12) is opened, a second shifting element (S22), without involvement in any drive power flow in the transmission unit, is closed in order to minimize rotational speed 19 differences, the third shifting element (S31) is closed in order to transmit a drive power and the at least one fourth shifting element (S41, S42) is opened.
    [12] 12. Method according to Claim 11, characterized in that the first input shaft (EW1) of the transmission unit is connected to a first powershift element (KI) of a dual clutch and the second input shaft (EW2) of the transmission unit is connected to a second powershift element (K2) of the dual clutch, and to carry out a powershift the first powershift element (K1) and the second powershift element (K2) are each changed actively from an open operating position to a closed idle position or passively from the closed idle position to the open operating position.
    [13] 13. Method according to at least one of Claims 11 and 12, characterized in that the first input shaft (EW1) of the transmission unit is connected to a first powershift element (K1) of a dual clutch and the second input shaft (EW2) of the transmission unit is connected to a second powershift element (K2) of the dual clutch, and to carry out a powershift the first powershift element (K1) and the second powershift element (K2) are each changed actively from a closed idle position to an open operating position or passively from the open operating position to the closed idle position.
    [14] 14. Method according to at least one of the preceding claims, characterized in that the transmission unit comprises at least one countershaft (VW1, VW2) and the at least one first shifting element (S11, S12) and the at least one second shifting element (S21, S22) are opened in order to decouple the at least one countershaft (VW1, VW2).
    [15] 15. Method according to at least one of the preceding claims, characterized in that the transmission unit is connected to an additional transmission group (3.), the additional transmission group (3) comprises a first additional shifting element (S51) that can be opened and closed in order to engage a gear step and a. second additional shifting element (S52) that can be opened and closed in order to engage a gear step, and to obtain a first gear sequence (A, B, C. D, E, E*, F) the first additional shifting element (S51) is opened and the second additional shifting element (S52) is closed, and to obtain a second gear sequence (G, I-1, I, J, K, K*) the first additional shifting element (S51) is closed and the second additional shifting element (S52) is opened. 112 (NI LU < Z°. LC) LU1 1 1 UJ c) Lc)c LU 00 -czt. CN LU CO LU • 1 CN '12 Cal 212
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    法律状态:
    2017-11-21| NAV| Patent application has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014202381.5A|DE102014202381A1|2014-02-11|2014-02-11|Method for operating a transmission device|
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