Njengomthombo wamandla oyinhloko wezimoto ezintsha zamandla, amabhethri kagesi abaluleke kakhulu ezimotweni zamandla amasha.Ngesikhathi sokusetshenziswa kwangempela kwemoto, ibhethri izobhekana nezimo zokusebenza eziyinkimbinkimbi nezishintshayo.Ukuze kuthuthukiswe ibanga lokuhamba, imoto idinga ukuhlela amabhethri amaningi ngangokunokwenzeka endaweni ethile, ukuze isikhala sephakethe lebhethri emotweni sincane kakhulu.Ibhethri ikhiqiza ukushisa okukhulu ngesikhathi sokusebenza kwemoto futhi inqwabelana endaweni encane uma kuqhathaniswa nesikhathi.Ngenxa yokunqwabelana kwamaseli ephaketheni lebhethri, kuphinde kube nzima kakhulu ukukhipha ukushisa endaweni emaphakathi ngokwezinga elithile, kubhebhethekisa ukungezwani kwezinga lokushisa phakathi kwamaseli, okuzonciphisa ukushaja nokukhipha ukusebenza kahle kwebhethri futhi. kuthinte amandla ebhethri;Kuzodala ukugijima okushisayo futhi kuthinte ukuphepha nempilo yesistimu.
Izinga lokushisa lebhethri lamandla linethonya elikhulu ekusebenzeni kwalo, impilo nokuphepha.Emazingeni okushisa aphansi, ukumelana kwangaphakathi kwamabhethri e-lithium-ion kuzokwanda futhi umthamo uzokwehla.Ezimweni ezimbi kakhulu, i-electrolyte izoba yiqhwa futhi ibhethri alikwazi ukushajwa.Ukusebenza okuphansi kwezinga lokushisa kwesistimu yebhethri kuzothinteka kakhulu, okuholela ekusebenzeni kokuphuma kwamandla kwezimoto zikagesi.Ukufiphala nokunciphisa ububanzi.Lapho ushaja izimoto zamandla amasha ngaphansi kwezimo eziphansi zezinga lokushisa, i-BMS evamile iqala ngokushisisa ibhethri libe izinga lokushisa elifanele ngaphambi kokushaja.Uma ingaphathwa kahle, izoholela ekushajweni kwamandla kagesi ngokushesha, okuholela ekujikelezeni okufushane kwangaphakathi, futhi kuqhume intuthu, umlilo noma ngisho nokuqhuma.Inkinga yokuphepha yokushajwa kwezinga lokushisa eliphansi yesistimu yebhethri yemoto kagesi ikhawulela ukukhuthazwa kwezimoto ezisebenza ngogesi ezindaweni ezibandayo ngokwezinga elikhulu.
Ukulawula ukushisa kwebhethri kungomunye wemisebenzi ebalulekile ku-BMS, ikakhulukazi ukugcina iphakethe lebhethri lisebenza ebangeni lokushisa elifanele ngaso sonke isikhathi, ukuze kugcinwe isimo esingcono kakhulu sokusebenza sephakethe lebhethri.Ukuphathwa okushisayo kwebhethri ikakhulukazi kuhlanganisa imisebenzi yokupholisa, ukufudumeza nokulinganisa izinga lokushisa.Imisebenzi yokupholisa nokushisisa ilungiswa ngokuyinhloko ngomthelela ongaba khona wezinga lokushisa le-ambient yangaphandle kubhethri.Ukulinganisa izinga lokushisa kusetshenziselwa ukunciphisa umehluko wezinga lokushisa ngaphakathi kwephakethe lebhethri futhi kuvimbele ukubola okusheshayo okubangelwa ukushisa ngokweqile kwengxenye ethile yebhethri.
Ngokuvamile, izindlela zokupholisa zamabhethri kagesi zihlukaniswa kakhulu zibe izigaba ezintathu: ukupholisa komoya, ukupholisa uketshezi kanye nokupholisa okuqondile.Imodi yokupholisa umoya isebenzisa umoya wemvelo noma umoya opholile endaweni yabagibeli ukuze ugeleze ebusweni bebhethri ukuze kuzuzwe ukushintshana kokushisa nokupholisa.Ukupholisa uketshezi ngokuvamile kusebenzisa ipayipi lokupholisa elizimele ukushisa noma ukupholisa ibhethri lamandla.Njengamanje, le ndlela iyona ehamba phambili yokupholisa.Isibonelo, uTesla noVolt bobabili basebenzisa le ndlela yokupholisa.Isistimu yokupholisa eqondile iqeda ipayipi lokupholisa lebhethri lamandla futhi isebenzisa ngokuqondile isiqandisi ukupholisa ibhethri lamandla.
1. Isistimu yokupholisa umoya:
Emabhethri asekuqaleni amandla, ngenxa yomthamo wawo omncane kanye nokuminyana kwamandla, amabhethri amaningi amandla apholiswa ukupholisa komoya.Ukupholisa umoya (I-PTC Air heater) ihlukaniswe yaba izigaba ezimbili: ukupholisa komoya wemvelo nokupholisa komoya ngempoqo (usebenzisa ifeni), futhi isebenzisa umoya wemvelo noma umoya obandayo kukhebhu ukupholisa ibhethri.
Abameleli abajwayelekile bezinhlelo ezipholile emoyeni yi-Nissan Leaf, i-Kia Soul EV, njll.;okwamanje, amabhethri angu-48V wezimoto ezincane eziyi-48V ngokuvamile ahlelwa endaweni yabagibeli, futhi apholiswa ukupholisa komoya.Isakhiwo sesistimu yokupholisa umoya silula, ubuchwepheshe buvuthiwe, futhi izindleko ziphansi.Kodwa-ke, ngenxa yokushisa okulinganiselwe okuthathwe umoya, ukusebenza kahle kokushintshaniswa kokushisa kuphansi, ukushisa kwangaphakathi okufanayo kwebhethri akukuhle, futhi kunzima ukufeza ukulawula okunembe kakhudlwana kokushisa kwebhethri.Ngakho-ke, isistimu yokupholisa umoya ngokuvamile ifaneleka ezimweni ezinobubanzi obufushane bokuhamba ngesikebhe nesisindo semoto encane.
Kuhle ukusho ukuthi ohlelweni olupholile emoyeni, ukuklanywa kwepayipi lomoya kudlala indima ebalulekile emthelela wokupholisa.Amapayipi omoya ahlukaniswe ngokuyinhloko abe ama-serial air ducts nama-parallel air ducts.Isakhiwo se-serial silula, kodwa ukumelana kukhulu;isakhiwo esihambisanayo siyinkimbinkimbi kakhulu futhi sithatha indawo eyengeziwe, kodwa ukufana kokukhipha ukushisa kuhle.
2. Uhlelo lokupholisa uketshezi
Imodi yokupholisa uketshezi isho ukuthi ibhethri isebenzisa uketshezi olupholisa ukushintshanisa ukushisa (I-PTC Coolant heater).I-Coolant ingahlukaniswa ngezinhlobo ezimbili ezingathinta ngokuqondile iseli yebhethri (uwoyela we-silicon, uwoyela we-castor, njll.) futhi uxhumane neseli yebhethri (amanzi ne-ethylene glycol, njll.) ngokusebenzisa imigudu yamanzi;okwamanje, isisombululo esixubile samanzi ne-ethylene glycol sisetshenziswa kakhulu.Isistimu yokupholisa uketshezi ngokuvamile yengeza isibandisi kumjikelezo wesiqandisi, futhi ukushisa kwebhethri kuyasuswa ngesiqandisi;izingxenye zayo eziyinhloko yi-compressor, i-chiller kanye ne-iphampu yamanzi kagesi.Njengomthombo wamandla wesiqandisi, i-compressor inquma amandla okushintshanisa ukushisa kwalo lonke uhlelo.I-chiller isebenza njengokushintshisana phakathi kwesiqandisi noketshezi olupholisayo, futhi inani lokushintshaniswa kokushisa linquma ngokuqondile izinga lokushisa loketshezi olupholisayo.Iphampu yamanzi inquma izinga lokugeleza kwesipholile epayipini.Ukushesha kwezinga lokugeleza, kuba ngcono ukusebenza kokudlulisa ukushisa, futhi okuphambene nalokho.
Isikhathi sokuthumela: May-30-2023
