Nguva yekupedzisira takakurukura Magetsi Vacuum Pumps (EVPs muchidimbu).Sezvatinoona, kune zvakawanda zvakanaka zveEVPs.EVPs inewo zvakawanda zvisingabatsiri, kusanganisira ruzha.Munzvimbo yebani, nekuda kwekuderera kwemhepo, EVP haigoni kupa dhigirii yepamusoro yevacuum sezvakaita munzvimbo yebani, uye rubatsiro rwevacuum booster husina kunaka, uye simba rinotsika richava guru.Pane zvikanganiso zviviri zvinouraya zvakanyanya.Imwe nguva yeupenyu.Mamwe maEVP akachipa ane hupenyu hweasingasviki 1,000 maawa.Imwe yacho kutambisa simba.Isu tese tinoziva kuti kana mota yemagetsi iri kumahombekombe kana braking, simba rekukwenya rinogona kutyaira mota kuti itenderere kugadzira ikozvino.Aya magetsi anogona kuchaja bhatiri uye kuchengeta simba iri.Uku kubhureki simba kupora.Usarerutsa simba iri.Muchikamu cheNEDC chemota compact, kana simba rekubhureki richikwanisa kudzoserwa zvizere, rinogona kuchengetedza 17%.Mumamiriro ezvinhu emudhorobha, chiyero chesimba rinopedzwa nemota braking kune yakazara kutyaira simba rinogona kusvika 50%.Zvinogona kuoneka kuti kana iyo braking simba rekudzoreredza mwero inogona kuvandudzwa, rwendo rwekufamba runogona kuwedzerwa zvakanyanya uye hupfumi hwemotokari hunogona kuvandudzwa.Iyo EVP yakabatana pamwe chete neiyo braking system, zvinoreva kuti regenerative braking simba remota rakanangana pamusoro peiyo yekutanga friction braking force, uye yekutanga friction braking force haina kugadziridzwa.Iyo simba rekudzoreredza mwero yakaderera, ingangoita 5% yeBosch iBooster yakataurwa gare gare.Pamusoro pezvo, iyo braking comfort haina kunaka, uye kubatana uye kuchinjika kwemotor regenerative braking uye friction braking inoburitsa kuvhunduka.
Mufananidzo uri pamusoro unoratidza SCB schematic
Kunyangwe zvakadaro, EVP ichiri kushandiswa zvakanyanya, nekuti kutengeswa kwemotokari dzemagetsi kwakadzikira, uye kugona kwekugadzira chassis yemumba zvakare kwakashata.Mazhinji acho akakopwa chassis.Zvinenge zvisingaite kugadzira chassis yemotokari dzemagetsi.
Kana EVP isina kushandiswa, EHB (Electronic Hydraulic Brake Booster) inodiwa.EHB inogona kukamurwa kuita mhando mbiri, imwe ine high-pressure accumulator, inowanzonzi iyo wet type.Imwe yacho ndeyekuti mota inosundidzira zvakananga piston ye master cylinder, inowanzonzi yakaoma mhando.Hybrid itsva simba mota ndidzo dzekutanga, uye mumiriri weiyo yekupedzisira ndiyo Bosch iBooster.
Ngatitangei titarise EHB ine high-voltage accumulator, inova iri shanduro yakavandudzwa yeESP.ESP inogona zvakare kutariswa semhando yeEHB, ESP inogona kuita mabhureki.
Mufananidzo wekuruboshwe ndiyo dhizaini yevhiri reESP:
a--control valve N225
b--simba kudzora high-pressure valve N227
c--oiri inopinza vharafu
d--oiri yekubuda vharafu
e--brake silinda
f--inodzosera pombi
g--inoshanda servo
h--low-pressure accumulator
Muchikamu chekusimudzira, mota uye accumulator inovaka pre-pressure kuitira kuti pombi yekudzoka inosveta brake fluid.N225 yakavharwa, N227 yakavhurwa, uye vheji yemafuta inopinza inoramba yakavhurika kusvikira gumbo ravharwa kune inodiwa braking simba.
Kuumbwa kweEHB kwakangofanana nekweESP, kunze kwekuti iyo yepasi-pressure accumulator inotsiviwa ne-high-pressure accumulator.Iyo yepamusoro-pressure accumulator inogona kuvaka kumanikidza kamwe uye kuishandisa kakawanda, nepo yakaderera-kumanikidza accumulator yeESP inogona kuvaka kudzvanywa kamwe uye inogona kushandiswa kamwe chete.Pese painoshandiswa, iyo inonyanya kukosha chikamu cheESP uye chakanyatso chidimbu chepombi yeplunger inofanira kumira tembiricha yakanyanya uye kudzvanywa kwakanyanya, uye kuenderera uye kushandiswa kazhinji kunoderedza hupenyu hwayo.Ipapo kune kumanikidzwa kushoma kweiyo low-pressure accumulator.Kazhinji, simba guru rekubhureki rinenge 0.5g.Iyo yakajairwa braking simba iri pamusoro pe0.8g, uye 0.5g iri kure nekukwana.Pakutanga kwekugadzirwa, iyo ESP-inodzorwa braking system yakangoshandiswa mune mashoma mamiriro ekukurumidzira, kwete kupfuura ka10 pagore.Naizvozvo, ESP haigone kushandiswa seyakajairwa braking system, uye inogona kungoshandiswa pano neapo mumamiriro ekubatsira kana enjodzi.
Mufananidzo uri pamusoro unoratidza iyo yakakwira-kumanikidza accumulator yeToyota EBC, yakada kufanana nechitubu chegasi.Nzira yekugadzira ye-high-pressure accumulators ipfungwa yakaoma.Bosch pakutanga akashandisa mabhora ekuchengetedza simba.Muitiro wacho wakaratidza kuti nitrogen-based high-pressure accumulators ndiyo inonyanya kukodzera.
Toyota ndiyo yakatanga kushandisa EHB system kumotokari yakagadzirwa nevakawanda, iyo yaiva chizvarwa chekutanga Prius (parameters | mufananidzo) yakatangwa mukupera kwa1997, uye Toyota yakaitumidza kuti EBC.Panyaya yekudzoreredza simba rekubhureki, EHB inovandudzwa zvakanyanya kana ichienzaniswa neyechinyakare EVP, nekuti yakaparadzaniswa kubva painotsika uye inogona kuve yakatevedzana system.Iyo mota inogona kushandiswa kudzoreredza simba kutanga, uye braking inowedzerwa muchikamu chekupedzisira.
Pakupera kwa2000, Bosch yakagadzirawo yayo EHB, iyo yakashandiswa paMercedes-Benz SL500.Mercedes-Benz yakaitumidza kuti SBC.Mercedes-Benz's EHB sisitimu yakatanga kushandiswa mumotokari dzemafuta, senzira yekubatsira.Iyo sisitimu yacho yaive yakaoma uye yaive nemapombi akawandisa, uye Mercedes-Benz akarangarira E-Kirasi (paramita | mifananidzo), SL-kirasi (paramita | mifananidzo) uye CLS-makirasi (paramita | Mufananidzo) sedan, mutengo wekugadzirisa wakanyanya. yakakwirira, uye zvinoda kudarika 20,000 yuan kutsiva SBC.Mercedes-Benz yakamira kushandisa SBC mushure megore ra2008. Bosch yakaramba ichigadzirisa iyi system uye yakashandura kune nitrogen high-pressure accumulators.Muna 2008, yakatanga HAS-HEV, iyo inoshandiswa zvakanyanya mumotokari dzakasanganiswa kuEurope neBYD kuChina.
Mushure mezvo, TRW yakatangawo EHB system, iyo TRW yakatumidza SCB.Mahybrids mazhinji eFord nhasi maSCB.
Iyo EHB sisitimu yakanyanya kuomarara, iyo yakakwira-voltage accumulator inotya kuzununguka, kuvimbika hakuna kukwirira, vhoriyamu yakakurawo, mutengo wakakwira zvakare, hupenyu hwesevhisi hunobvunzwa zvakare, uye mutengo wekugadzirisa wakakura.Muna 2010, Hitachi yakatanga EHB yekutanga pasi rose yakaoma, inova E-ACT, inova zvakare EHB yepamusoro pazvino.zvirwere.Iyo R&D kutenderera kweE-ACT yakareba semakore manomwe, mushure meanoda kusvika makore mashanu ekuyedzwa kwekuvimbika.Yakanga isati yasvika 2013 iyo Bosch yakatanga chizvarwa chekutanga iBooster, uye yechipiri-chizvarwa iBooster muna 2016. IBooster yechizvarwa chechipiri yakasvika kuhutano hweE-ACT yeHitachi, uye maJapan akanga ari mberi kwechizvarwa cheGermany mumunda we. EHB.
Mufananidzo uri pamusoro unoratidza chimiro cheE-ACT
Iyo yakaoma EHB inodhiraivha yakananga tsvimbo nemota yobva yasaidzira piston ye master silinda.Simba rekutenderera remota rinoshandurwa kuita linear motion force kuburikidza ne roller screw (E-ACT).Panguva imwecheteyo, bhora screw zvakare inoderedza, iyo inoderedza kumhanya kwemota kune Yakawedzera torque inosundira master cylinder piston.Nheyo yacho iri nyore kwazvo.Chikonzero nei vanhu vekare vasina kushandisa nzira iyi imhaka yekuti mota yebhureki system ine yakanyanyisa kuvimbika zvinodiwa, uye kukwana kwekuita basa redundancy kunofanirwa kuchengetwa.Kuomerwa kuri mumotor, iyo inoda diki saizi yemota, kumhanya kwakakwira (kupfuura 10,000 revolutions paminiti), torque hombe, uye yakanaka kupisa kupisa.Iyo inoderedza zvakare yakaoma uye inoda yakakwirira machining kurongeka.Panguva imwecheteyo, zvinodikanwa kuita system optimization neiyo master cylinder hydraulic system.Naizvozvo, yakaoma EHB yakaonekwa yanonoka.
Mufananidzo uri pamusoro unoratidza chimiro chemukati chechizvarwa chekutanga iBooster.
Iyo gonye giya rinoshandiswa kune maviri-nhanho kudzikisira kuwedzera mutsara inofamba torque.Tesla anoshandisa chizvarwa chekutanga iBooster kumativi ose, pamwe chete nemotokari itsva yeVolkswagen uye Porsche 918 inoshandisa iBooster yechizvarwa chekutanga, GM's Cadillac CT6 uye Chevrolet's Bolt EV inoshandisawo iBooster yechizvarwa chekutanga.Iyi dhizaini inonzi inoshandura 95% ye regenerative braking energy kuita magetsi, zvakanyanya kuvandudza huwandu hwekufamba kwemotokari nyowani dzesimba.Nguva yekupindura zvakare 75% ipfupi pane yakanyorova EHB system ine high pressure accumulator.
Mufananidzo wekurudyi uri pamusoro ndewedu Chikamu# EHB-HBS001 Magetsi Hydraulic Brake Booster iyo yakafanana neiyo kuruboshwe mufananidzo pamusoro.Musangano wekuruboshwe ndiyo yechipiri-chizvarwa iBooster, iyo inoshandisa yechipiri-nhanho honye giya kune yekutanga-nhanho bhora screw yekudzikisira, inoderedza zvakanyanya vhoriyamu nekuvandudza kutonga kwayo.Vane zvigadzirwa zvina zvakatevedzana uye saizi yebooster inotangira pa4.5kN kusvika 8kN, uye 8kN inogona kushandiswa pamotokari diki yevatatu.
IBC ichatangwa paGM K2XX papuratifomu muna 2018, inova GM pickup series.Ziva kuti iyi imota yemafuta.Zvechokwadi, motokari dzemagetsi dzinogona kushandiswawo.
Iyo dhizaini uye kutonga kweiyo hydraulic system yakaoma, inoda kuunganidzwa kwenguva refu kwechiitiko uye yakanakisa machining kugona, uye kwagara kuine blank mundima iyi muChina.Kwemakore, kuvakwa kwenzvimbo yayo yeindasitiri kwakaregeredzwa, uye nheyo yekukwereta yakagamuchirwa zvachose;nekuti iyo braking system ine zvakanyanyisa kuvimbika zvinodiwa, makambani ari kusimukira haagone kuzivikanwa neOEM zvachose.Naizvozvo, dhizaini uye kugadzirwa kweiyo hydraulic chikamu cheiyo hydraulic brake system yemotokari inodzorwa zvizere nemajoint ventures kana makambani ekunze, uye kuitira kugadzira uye kugadzira iyo EHB system, zvinodikanwa kuita docking uye dhizaini yakazara ne. iyo hydraulic chikamu, inotungamira kune yese EHB system.Complete monopoly yemakambani ekunze.
Pamusoro peEHB, kune advanced braking system, EMB, iyo inenge yakakwana mudzidziso.Iyo inosiya ese ma hydraulic system uye ine mutengo wakaderera.Nguva yekupindura yemagetsi system ndeye 90 milliseconds chete, iyo inokurumidza kupfuura iBooster.Asi pane zvakawanda zvinokanganisa.Zvakaipa 1. Hapana gadziriro yekuchengetedza, iyo inoda kuvimbika kwakanyanya.Kunyanya, hurongwa hwemagetsi hunofanirwa kunge hwakagadzikana zvachose, hunoteverwa nekutadza kushivirira kweiyo bhazi yekutaurirana system.Iyo serial kutaurirana yenode yega yega musystem inofanirwa kuve nekutadza kushivirira.Panguva imwecheteyo, sisitimu inoda anokwana maCPU maviri kuti ave nechokwadi chekuvimbika.Kukanganisa 2. Kusakwana kwesimba rekubhureki.Iyo EMB system inofanirwa kunge iri muhubhu.Saizi yehubhu inotaridza saizi yemota, iyo inozoona kuti simba remota harigone kuve rakakura, nepo mota dzakajairwa dzichida 1-2KW yesimba rekubhureki, izvo parizvino zvisingagoneke kune madiki-saizi mota.Kuti usvike pakakwirira, iyo yekupinza voltage inofanira kuwedzerwa zvakanyanya, uye kunyange ipapo yakaoma kwazvo.Kukanganisa 3. Tembiricha yenzvimbo yekushanda yakakwira, tembiricha iri padhuze nebhureki pads yakakwira kusvika mazana emadhigirii, uye saizi yemota inotaridza kuti mota yegineti chete inogona kushandiswa, uye magineti echigarire achaita demagnetize pakupisa kwakanyanya. .Panguva imwecheteyo, zvimwe semiconductor zvikamu zveEMB zvinoda kushanda padhuze nemabhureki pads.Hapana semiconductor zvikamu zvinogona kumira tembiricha yakakwira kudaro, uye kudzikamisa vhoriyamu kunoita kuti zvisaite kuwedzera kutonhora system.Kukanganisa 4. Izvo zvinodikanwa kugadzira inoenderana sisitimu yechasisi, uye zvakaoma kugadziridza dhizaini, zvichikonzera kukwira kwakanyanya kwemitengo yekuvandudza.
Dambudziko rekusakwana kwemabhureki simba reEMB rinogona kusagadziriswa, nekuti kusimba kwemagineti yegineti yekusingaperi, kuderera kweCurie tembiricha poindi, uye EMB haigone kutyora muganhu wemuviri.Nekudaro, kana izvo zvinodikanwa zvebhureki simba zvakaderedzwa, EMB inogona kuramba inoshanda.Ikozvino yemagetsi yekupaka system EPB ndeye EMB braking.Ipapo pane EMB yakaiswa pavhiri reshure risingade yakakwira braking simba, senge Audi R8 E-TRON.
Kumberi kwevhiri reAudi R8 E-TRON ichiri chinyakare hydraulic dhizaini, uye vhiri reshure iEMB.
Mufananidzo uri pamusoro unoratidza EMB system yeR8 E-TRON.
Tinogona kuona kuti dhayamita yemota inogona kunge yakaenzana nehukuru hwemunwe mudiki.Vese vanogadzira mabhureki system vakaita seNTN, Shuguang Industry, Brembo, NSK, Wanxiang, Wanan, Haldex, uye Wabco vari kushanda nesimba paEMB.Ehe, Bosch, Continental uye ZF TRW haizove isina basa zvakare.Asi EMB inogona kusambokwanisa kutsiva hydraulic braking system.
Nguva yekutumira: May-16-2022