Ukuphathwa kokushisa kwebhethri
Ngesikhathi senqubo yokusebenza kwebhethri, izinga lokushisa linethonya elikhulu ekusebenzeni kwalo. Uma izinga lokushisa liphansi kakhulu, lingabangela ukwehla okukhulu kwamandla ebhethri, kanye nokujikeleza okufushane kwebhethri. Ukubaluleka kokuphathwa kokushisa kwebhethri kuya ngokuya kugqama njengoba izinga lokushisa liphezulu kakhulu okungabangela ukuthi ibhethri libole, ligqwale, libambe umlilo noma liqhume. Izinga lokushisa lokusebenza kwebhethri lamandla liyisici esibalulekile ekunqumeni ukusebenza, ukuphepha kanye nokuphila kwebhethri. Ngokombono wokusebenza, izinga lokushisa eliphansi kakhulu lizoholela ekunciphiseni komsebenzi webhethri, okuholela ekunciphiseni ukusebenza kokushaja nokukhipha, kanye nokwehla okukhulu kwamandla ebhethri. Ukuqhathanisa kuthole ukuthi lapho izinga lokushisa lehla laya ku-10°C, amandla okukhipha ibhethri ayengu-93% walokho ekushiseni okuvamile; nokho, lapho izinga lokushisa lehla laya ku-20°C, amandla okukhipha ibhethri ayengu-43% kuphela walokho ekushiseni okuvamile.
Ucwaningo lukaLi Junqiu nabanye luveze ukuthi ngokombono wokuphepha, uma izinga lokushisa liphezulu kakhulu, ukusabela okuseceleni kwebhethri kuzosheshiswa. Lapho izinga lokushisa liseduze no-60 °C, izinto zangaphakathi/izinto ezisebenzayo zebhethri zizobola, bese kuba khona "ukubaleka kokushisa", okubangela izinga lokushisa likhuphuke ngokuzumayo, kuze kufike ku-400 ~ 1000 ℃, bese kuholela emlilweni nasekuqhumeni. Uma izinga lokushisa liphansi kakhulu, izinga lokushaja lebhethri kudingeka ligcinwe ngesilinganiso sokushaja esiphansi, ngaphandle kwalokho kuzobangela ukuthi ibhethri libole i-lithium futhi kubangele ukuthi i-internal short circuit ibambe umlilo.
Ngokombono wokuphila kwebhethri, umthelela wokushisa empilweni yebhethri awunakunakwa. Ukufakwa kwe-lithium kumabhethri avame ukushaja ngokushisa okuphansi kuzokwenza impilo yomjikelezo webhethri ibole ngokushesha izikhathi eziningi, futhi izinga lokushisa eliphezulu lizothinta kakhulu impilo yekhalenda kanye nempilo yomjikelezo webhethri. Ucwaningo luthole ukuthi uma izinga lokushisa lingu-23 ℃, impilo yekhalenda yebhethri enomthamo osele ongu-80% cishe izinsuku ezingu-6238, kodwa uma izinga lokushisa lenyuka laya ku-35 ℃, impilo yekhalenda cishe izinsuku ezingu-1790, futhi uma izinga lokushisa lifika ku-55 ℃, impilo yekhalenda cishe izinsuku ezingu-6238. Izinsuku ezingu-272 kuphela.
Njengamanje, ngenxa yezindleko kanye nemikhawulo yezobuchwepheshe, ukuphathwa kokushisa kwebhethri (I-BTMS) ayihlanganisiwe ekusetshenzisweni kwemidiya eqhubayo, futhi ingahlukaniswa ngezindlela ezintathu ezinkulu zobuchwepheshe: ukupholisa umoya (okusebenzayo nokungasebenzisi), ukupholisa uketshezi kanye nezinto zokushintsha isigaba (PCM). Ukupholisa umoya kulula kakhulu, akunangozi yokuvuza, futhi kuyonga. Ifanelekela ukuthuthukiswa kokuqala kwamabhethri e-LFP kanye nezinkundla zezimoto ezincane. Umphumela wokupholisa uketshezi ungcono kunowokupholisa umoya, futhi izindleko ziyanda. Uma kuqhathaniswa nomoya, indawo yokupholisa uketshezi inezici zomthamo omkhulu wokushisa othize kanye ne-coefficient ephezulu yokudlulisa ukushisa, okwenza ngempumelelo ukuntuleka kobuchwepheshe kokusebenza kahle kokupholisa umoya okuphansi. Kuyindlela eyinhloko yokwenza ngcono izimoto zabagibeli njengamanje. uhlelo. UZhang Fubin waveza ocwaningweni lwakhe ukuthi inzuzo yokupholisa uketshezi ukushabalalisa ukushisa okusheshayo, okungaqinisekisa izinga lokushisa elifanayo lephakethe lebhethri, futhi kufanelekile kumaphakethe ebhethri anomkhiqizo omkhulu wokushisa; izinkinga yizindleko eziphezulu, izidingo zokupakisha eziqinile, ingozi yokuvuza koketshezi, kanye nesakhiwo esiyinkimbinkimbi. Izinto zokushintsha isigaba zinokusebenza kahle kokushintshana kokushisa kanye nezinzuzo zezindleko, kanye nezindleko zokulungisa eziphansi. Ubuchwepheshe bamanje busesesigabeni selabhorethri. Ubuchwepheshe bokuphathwa kokushisa kwezinto zokushintsha isigaba abukakavuthwa ngokugcwele, futhi buyindlela yokuthuthukiswa okungenzeka kakhulu yokuphathwa kokushisa kwebhethri esikhathini esizayo.
Sekukonke, ukupholisa uketshezi kuyindlela yobuchwepheshe obujwayelekile yamanje, ikakhulukazi ngenxa yalokhu:
(1) Ngakolunye uhlangothi, amabhethri e-ternary aphezulu e-nickel amanje anokuqina kokushisa okubi kakhulu kunamabhethri e-lithium iron phosphate, izinga lokushisa eliphansi lokushisa (izinga lokushisa lokubola, 750 °C ye-lithium iron phosphate, 300 °C yamabhethri e-ternary lithium), kanye nokukhiqizwa kokushisa okuphezulu. Ngakolunye uhlangothi, ubuchwepheshe obusha bokusetshenziswa kwe-lithium iron phosphate njengebhethri le-BYD's blade kanye ne-Ningde era CTP bususa amamojula, buthuthukisa ukusetshenziswa kwesikhala kanye nobuningi bamandla, futhi bukhuthaza ukuphathwa kokushisa kwebhethri kusukela kubuchwepheshe obupholile emoyeni kuya ekuthambekeni kobuchwepheshe obupholile ngoketshezi.
(2) Bethintwa yisiqondiso sokunciphisa uxhaso kanye nokukhathazeka kwabathengi ngebanga lokushayela, ibanga lokushayela izimoto zikagesi liyaqhubeka nokukhula, futhi izidingo zobuningi bamandla ebhethri ziya ngokuya zikhuphuka. Isidingo sobuchwepheshe bokupholisa uketshezi obusebenza kahle kakhulu ekudluliseni ukushisa sikhulile.
(3) Amamodeli athuthuka ngokuya ngamamodeli asezingeni eliphakathi kuya kweliphezulu, anesabelomali esanele sezindleko, ukuphishekela induduzo, ukubekezelela amaphutha amancane kanye nokusebenza okuphezulu, futhi ikhambi lokupholisa uketshezi lihambisana kakhulu nezidingo.
Kungakhathaliseki ukuthi imoto yendabuko noma imoto entsha yamandla, isidingo sabathengi senduduzo siya ngokuya sikhuphuka, futhi ubuchwepheshe bokuphatha ukushisa kwe-cockpit sebubaluleke kakhulu. Ngokuphathelene nezindlela zokuqandisa, kusetshenziswa ama-compressor kagesi esikhundleni sama-compressor ajwayelekile okuqandisa, futhi amabhethri avame ukuxhunywa ezinhlelweni zokupholisa umoya. Izimoto zendabuko ikakhulukazi zamukela uhlobo lwe-swash plate, kuyilapho izimoto ezintsha zamandla ikakhulukazi zisebenzisa uhlobo lwe-vortex. Le ndlela isebenza kahle kakhulu, isisindo esincane, umsindo ophansi, futhi ihambisana kakhulu namandla okushayela kagesi. Ngaphezu kwalokho, isakhiwo silula, ukusebenza kuzinzile, futhi ukusebenza kahle kwe-volumetric kuphakeme ngo-60% kunohlobo lwe-swash plate. %mayelana. Ngokuphathelene nendlela yokushisa, ukushisa kwe-PTC(Isifudumezi somoya se-PTC/Isifudumezi sokupholisa se-PTC) iyadingeka, futhi izimoto zikagesi azinazo imithombo yokushisa engabizi kakhulu (njenge-coolant yenjini yokushisa yangaphakathi)
Isikhathi sokuthunyelwe: Julayi-07-2023
