Ingaphakathi lemoto lenziwe ngezinto eziningi, ikakhulukazi ngemuva kokufakwa kukagesi. Inhloso yesikhulumi sikagesi ukufanisa izidingo zamandla ezingxenye ezahlukene. Ezinye izingxenye zidinga i-voltage ephansi uma kuqhathaniswa, efana ne-electronics yomzimba, okokusebenza kokuzijabulisa, izilawuli, njll. (ngokuvamile ukunikezwa kwamandla kagesi weplathifomu engu-12V), kanti ezinye zidinga amandla alinganiselwe.i-voltage ephezulu, njengamasistimu ebhethri, amasistimu okushayela amandla kagesi aphezulu, amasistimu wokushaja, njll. (400V/800V), ngakho-ke kukhona inkundla yamandla kagesi aphezulu kanye neplathifomu yamandla kagesi aphansi.
Bese ucacisa ubudlelwano phakathi kwe-800V nokushaja okushesha kakhulu: Manje imoto yomgibeli ehlanzekile kagesi ngokuvamile imayelana nesistimu yebhethri engu-400V, injini ehambisanayo, izesekeli, ikhebula le-voltage ephezulu nayo iyileveli ye-voltage efanayo, uma i-voltage yesistimu inyuswa, kusho ukuthi ngaphansi kwesidingo samandla afanayo, owamanje ungancishiswa ngesigamu, lonke ukulahleka kwesistimu kuba kuncane, ukushisa kuncishisiwe, kodwa futhi nokusebenza kwemoto kulula kakhulu, kuyasiza kakhulu.
Eqinisweni, ukushaja okusheshayo akuhlobene ngokuqondile ne-800V, ikakhulukazi ngenxa yokuthi izinga lokushaja lebhethri liphakeme, okuvumela ukushaja kwamandla amakhulu, okuyinto ngokwayo engahlangene ne-800V, njengeplathifomu ye-Tesla ye-400V, kodwa futhi ingafinyelela ukushaja okusheshayo ngendlela yamanje ephezulu. Kodwa 800V iwukuba ukufeza high-amandla ukushaja inikeza isisekelo esihle, ngoba okufanayo ukuze kuzuzwe amandla ukushaja 360kW, 800V ithiyori idinga kuphela 450A yamanje, uma 400V, idinga 900A zamanje, 900A ezimweni zamanje lobuchwepheshe izimoto abagibeli cishe akunakwenzeka. Ngakho-ke, kunengqondo kakhudlwana ukuxhumanisa i-800V kanye nokushaja okusheshayo okukhulu ndawonye, okubizwa ngokuthi iplathifomu yobuchwepheshe yokushaja esheshayo engu-800V.
Njengamanje, kunezinhlobo ezintathu zehigh-voltageizakhiwo zesistimu okulindeleke ukuthi zifinyelele ekushajelweni okusheshayo kwamandla aphezulu, futhi isistimu egcwele yamandla kagesi aphezulu kulindeleke ukuthi ibe inkambiso:
(1) Isistimu egcwele yamandla kagesi aphezulu, okungukuthi, ibhethri lamandla angu-800V +800V motor, isilawuli sikagesi +800V OBC, DC/DC, PDU+800V air conditioning, PTC.
Izinzuzo: Izinga eliphezulu lokuguqulwa kwamandla, isibonelo, izinga lokuguqulwa kwamandla kagesi wesistimu ye-electric drive yi-90%, izinga lokuguqulwa kwamandla ka-DC/DC ngu-92%, uma lonke uhlelo luyi-voltage ephezulu, akudingekile ukucindezeleka nge-DC/DC, izinga lokuguqulwa kwamandla esistimu ngu-90% × 92% = 82.8%.
Ubuthakathaka: Izakhiwo azinayo nje kuphela izidingo eziphezulu ohlelweni lwebhethri, isilawuli sikagesi, i-OBC, i-DC/DC amadivayisi kagesi adinga ukushintshwa yi-Si-based IGBT SiC MOSFET, i-motor, compressor, i-PTC, njll. idinga ukuthuthukisa ukusebenza kwe-voltage, ukukhuphuka kwezindleko zokuphela kwemoto yesikhashana kuphezulu, kodwa ngokuhamba kwesikhathi, ngemva kokuba uchungechunge lwezimboni luvuthiwe futhi umphumela wesikali usukhulile. Umthamo wezingxenye ezithile uyancipha, ukonga kwamandla kuyathuthukiswa, futhi izindleko zemoto zizokwehla.
(2) Ingxenye yei-voltage ephezulu, okungukuthi, ibhethri engu-800V +400V motor, isilawuli sikagesi +400V OBC, DC/DC, PDU +400V air conditioning, PTC.
Izinzuzo: ngokuyisisekelo sebenzisa isakhiwo esikhona, thuthukisa kuphela ibhethri lamandla, izindleko zokuguqulwa kokuphela kwemoto zincane, futhi kukhona ukusebenziseka okukhulu esikhathini esifushane.
Ukungalungi: Ukwehla kwe-DC/DC kusetshenziswa ezindaweni eziningi, futhi ukulahlekelwa kwamandla kukhulu.
(3) Yonke i-low-voltage architecture, okungukuthi, ibhethri engu-400V (ishaja i-800V ngochungechunge, ikhipha i-400V ngokuhambisana) +400V motor, isilawuli sikagesi +400V OBC, DC/DC, PDU +400V air conditioning, PTC.
Izinzuzo: Ukuguqulwa kokuphela kwemoto kuncane, ibhethri idinga kuphela ukuguqulwa kwe-BMS.
Ukungalungi: ukukhuphuka kochungechunge, ukwanda kwezindleko zebhethri, sebenzisa ibhethri lamandla langempela, ukuthuthukiswa kokushaja kahle kunqunyelwe.
Isikhathi sokuthumela: Sep-18-2023