Isikhokelo sokuphucula iTekhnoloji yoLawulo loBushushu beZithuthi zamandla amatsha

Ulawulo lobushushu bebhetri

Ngexesha lokusebenza kwebhetri, ubushushu bunempembelelo enkulu ekusebenzeni kwayo. Ukuba ubushushu buphantsi kakhulu, bunokubangela ukwehla okukhulu kwamandla ebhetri, kwanokujikeleza okufutshane kwebhetri. Ukubaluleka kolawulo lobushushu bebhetri kuya kusanda njengoko ubushushu buphezulu kakhulu nto leyo enokubangela ukuba ibhetri ibole, idle, itshaye okanye ide iqhume. Ubushushu bokusebenza kwebhetri yamandla yinto ephambili ekumiseleni ukusebenza, ukhuseleko kunye nobomi bebhetri. Ngokwembono yokusebenza, ubushushu obuphantsi kakhulu buya kukhokelela ekunciphiseni umsebenzi webhetri, okubangela ukwehla kokusebenza kwetshaja kunye nokukhupha, kunye nokwehla okukhulu kwamandla ebhetri. Uthelekiso lufumanise ukuba xa ubushushu buhla ukuya kwi-10°C, amandla okukhupha ibhetri yayiyi-93% yaloo nto kubushushu obuqhelekileyo; nangona kunjalo, xa ubushushu buhla ukuya kwi-20°C, amandla okukhupha ibhetri yayiyi-43% kuphela yaloo nto kubushushu obuqhelekileyo.

Uphando lukaLi Junqiu nabanye lukhankanye ukuba ngokwembono yokhuseleko, ukuba ubushushu buphezulu kakhulu, iimpembelelo ezisemacaleni zebhetri ziya kukhawuleziswa. Xa ubushushu busondele kwi-60 °C, izinto zangaphakathi/izinto ezisebenzayo zebhetri ziya kubola, kwaye emva koko "i-thermal runaway" iya kwenzeka, nto leyo ebangela ubushushu ukuba bunyuke ngequbuliso, bufikelele kwi-400 ~ 1000 ℃, emva koko kukhokelele kumlilo nokuqhuma. Ukuba ubushushu buphantsi kakhulu, izinga lokutshaja lebhetri kufuneka ligcinwe ngesantya esiphantsi sokutshaja, kungenjalo kuya kubangela ukuba ibhetri ibolise i-lithium kwaye ibangele ukuba i-internal short circuit ibambe umlilo.

Ngokwembono yobomi bebhetri, impembelelo yobushushu kubomi bebhetri ayinakutyeshelwa. Ukufakwa kweLithium kwiibhetri ezithambekele ekutshajweni kobushushu obuphantsi kuya kubangela ukuba ubomi bomjikelo webhetri bubole ngokukhawuleza amaxesha amaninzi, kwaye ubushushu obuphezulu buya kuchaphazela kakhulu ubomi bekhalenda kunye nobomi bomjikelo webhetri. Uphando lufumanise ukuba xa ubushushu bungama-23 ℃, ubomi bekhalenda yebhetri enomthamo oseleyo wama-80% bumalunga neentsuku ezingama-6238, kodwa xa ubushushu bunyuka bufikelela kuma-35 ℃, ubomi bekhalenda bumalunga neentsuku ezili-1790, kwaye xa ubushushu bufikelela kuma-55 ℃, ubomi bekhalenda bumalunga neentsuku ezingama-6238. Ziintsuku ezingama-272 kuphela.

Okwangoku, ngenxa yeendleko kunye nemida yobuchwepheshe, ulawulo lobushushu bebhetri (I-BTMS() ayidibani ekusetyenzisweni kwezixhobo zokuhambisa umoya, kwaye inokwahlulwa ibe ziindlela ezintathu eziphambili zobugcisa: ukupholisa umoya (okusebenzayo nokungashukumiyo), ukupholisa ulwelo kunye nezixhobo zokutshintsha isigaba (PCM). Ukupholisa umoya kulula kakhulu, akukho mngcipheko wokuvuza, kwaye kuyabiza. Ifanelekile kuphuhliso lokuqala lweebhetri ze-LFP kunye neentsimi zeemoto ezincinci. Isiphumo sokupholisa ulwelo singcono kunesokupholisa umoya, kwaye iindleko ziyanda. Xa kuthelekiswa nomoya, i-liquid cooling medium ineempawu zomthamo omkhulu wobushushu kunye ne-heat transfer coefficient ephezulu, ehlawula ngokufanelekileyo ukunqongophala kobuchwepheshe bokusebenza kokupholisa umoya okuphantsi. Yindlela ephambili yokuphucula iimoto zabakhweli okwangoku. isicwangciso. UZhang Fubin ubonise kuphando lwakhe ukuba inzuzo yokupholisa ulwelo kukusasazwa kobushushu ngokukhawuleza, okunokuqinisekisa ubushushu obufanayo bepakethe yebhetri, kwaye ifanelekile kwiipakethe zebhetri ezinemveliso enkulu yobushushu; iingxaki ziindleko eziphezulu, iimfuno ezingqongqo zokupakisha, umngcipheko wokuvuza kolwelo, kunye nesakhiwo esintsonkothileyo. Izixhobo zokutshintsha isigaba zinobuchule bokutshintsha ubushushu kunye neenzuzo zeendleko, kunye neendleko zokulungisa eziphantsi. Itekhnoloji yangoku isesekwinqanaba lelebhu. Itekhnoloji yolawulo lobushushu bezinto zokutshintsha isigaba ayikavuthwa ngokupheleleyo, kwaye yeyona ndlela inokwenzeka yophuhliso lolawulo lobushushu bebhetri kwixesha elizayo.

Ngokubanzi, ukupholisa ulwelo yindlela yetekhnoloji ephambili yangoku, ikakhulu ngenxa yezi:

(1) Kwelinye icala, iibhetri eziphambili ze-nickel ternary zizinzile kakhulu kubushushu kuneebhetri ze-lithium iron phosphate, ubushushu obuphantsi bokubaleka kobushushu (ubushushu bokubola, i-750 °C kwi-lithium iron phosphate, i-300 °C kwiibhetri ze-ternary lithium), kunye nemveliso ephezulu yobushushu. Kwelinye icala, ubuchwepheshe obutsha bokusetyenziswa kwe-lithium iron phosphate njengebhetri ye-BYD's blade kunye ne-Ningde era CTP zisusa iimodyuli, ziphucula ukusetyenziswa kwendawo kunye noxinano lwamandla, kwaye zikhuthaza ngakumbi ulawulo lobushushu bebhetri ukusuka kwiteknoloji epholileyo emoyeni ukuya kwiteknoloji epholileyo yolwelo.

(2) Ngenxa yesikhokelo sokunciphisa inkxaso-mali kunye nokuxhalaba kwabathengi kuluhlu lokuqhuba, uluhlu lokuqhuba lwezithuthi zombane luyaqhubeka nokwanda, kwaye iimfuno zoxinano lwamandla ebhetri ziya zisanda. Imfuno yetekhnoloji yokupholisa ulwelo enokusebenza okuphezulu kokudlulisa ubushushu inyukile.

(3) Iimodeli ziyaphuhliswa zijonge kwiimodeli eziphakathi ukuya kweziphezulu, zinebhajethi eyaneleyo yeendleko, zifuna intuthuzelo, zinyamezela iimpazamo ezincinci kunye nokusebenza okuphezulu, kwaye isisombululo sokupholisa ulwelo sihambelana ngakumbi neemfuno.

Nokuba yimoto yendabuko okanye imoto entsha yamandla, imfuno yabathengi yokuthuthuzela iya iphakama, kwaye iteknoloji yolawulo lobushushu be-cockpit iye yaba yinto ebaluleke kakhulu. Ngokuphathelele iindlela zokukhenkcisa, kusetyenziswa ii-compressors zombane endaweni yee-compressors eziqhelekileyo zokukhenkcisa, kwaye iibhetri zihlala ziqhagamshelwe kwiinkqubo zokupholisa umoya. Izithuthi zemveli ikakhulu zisebenzisa uhlobo lwe-swash plate, ngelixa izithuthi zamandla amatsha zisebenzisa uhlobo lwe-vortex. Le ndlela isebenza kakuhle, inobunzima obuphantsi, ingxolo ephantsi, kwaye ihambelana kakhulu namandla okuqhuba ngombane. Ukongeza, ulwakhiwo lulula, ukusebenza kuzinzile, kwaye ukusebenza kakuhle kwe-volumetric kuphezulu ngama-60% kunohlobo lwe-swash plate. %malunga. Ngokuphathelele indlela yokufudumeza, ukufudumeza kwe-PTC(Isifudumezi somoya se-PTC/Isifudumezi se-PTC esipholileyo) iyafuneka, kwaye iimoto zombane azinazo izixhobo zobushushu ezingabizi kakhulu (ezifana ne-internal combustion engine cooler)