Ubwenge buhuza agasanduku hamwe na voltage hamwe na syncronisation yubu muri EV

Ubwenge buhuza agasanduku hamwe na voltage hamwe na syncronisation yubu muri EV

Mugihe ibinyabiziga byamashanyarazi (EV) bigenda byamamara, imbogamizi kubakora imodoka nugukuraho "impungenge zabatwara" mugihe imodoka ihendutse.Ibi bisobanura gukora paki ya bateri igiciro gito hamwe ningufu nyinshi.Buri saha imwe ya watt yabitswe kandi igakurwa muri selile ningirakamaro kugirango wongere intera yo gutwara.

Kugira ibipimo nyabyo bya voltage, ubushyuhe nibigezweho nibyingenzi kugirango ugere ku kigereranyo kinini cyerekana uko amafaranga yishyuwe cyangwa ubuzima bwubuzima bwa buri selile muri sisitemu.

Igikorwa nyamukuru cya sisitemu yo gucunga bateri (BMS) ni ugukurikirana amashanyarazi ya selile, gupakira voltage hamwe nububiko bwa none.Igishushanyo 1a cyerekana ipaki ya batiri mumasanduku yicyatsi hamwe na selile nyinshi zegeranye.Igice kigenzura selile kirimo monitor ya selile igenzura voltage nubushyuhe bwa selile.
Inyungu za BJB zifite ubwenge:

Kurandura insinga nibikoresho bya cabling.
Itezimbere voltage hamwe n'ibipimo bigezweho hamwe nurusaku rwo hasi.
Kworoshya ibyuma no guteza imbere software.Kuberako ibikoresho bya Texas (TI) bikurikirana hamwe na monitor ya selire biva mumuryango umwe wibikoresho, imyubakire yabo hamwe namakarita yo kwiyandikisha byose birasa cyane.
Gushoboza abakora sisitemu guhuza pack voltage hamwe nibipimo bigezweho.Gutinda kwa syncronisation ntoya byongera leta-yishyurwa.
Umuvuduko, ubushyuhe hamwe n'ibipimo bigezweho
Umuvuduko: Umuvuduko urapimwa ukoresheje imirongo igabanijwe.Ibipimo bigenzura niba ibyuma bya elegitoronike bifunguye cyangwa bifunze.
Ubushyuhe: Ibipimo by'ubushyuhe bikurikirana ubushyuhe bwa shunt résistor kugirango MCU ishobore gusaba indishyi, kimwe n'ubushyuhe bw'abahuza kugirango barebe ko badahangayitse
Ibiriho: Ibipimo bigezweho bishingiye kuri:
Kurwanya shunt.Kuberako imigezi muri EV ishobora kuzamuka ibihumbi n'ibihumbi amperes, aba barwanya shunt ni bato cyane - murwego rwa 25 µOhms kugeza 50 µOhms.
Inzu yerekana ingaruka.Urwego rwa dinamike rusanzwe rufite aho rugarukira, kubwibyo, rimwe na rimwe hari sensor nyinshi muri sisitemu yo gupima urwego rwose.Ibyuma bifata ibyuma byubaka byoroha kubangamira amashanyarazi.Urashobora gushyira ibyo byuma aho ariho hose muri sisitemu, ariko, kandi mubisanzwe bitanga ibipimo byihariye.
Umuvuduko na syncronisation

Umuvuduko hamwe na syncronisation ya none nigihe cyo gutinda kibaho kugirango utange voltage na current hagati ya pack monitor na monitor ya selile.Ibi bipimo bikoreshwa cyane mukubara uko amafaranga yishyuwe hamwe nubuzima bwubuzima binyuze muri electro-impedance spectroscopy.Kubara inzitizi ya selile mugupima voltage, amashanyarazi nimbaraga hejuru ya selile bituma BMS ikurikirana imbaraga zimodoka.

Umuvuduko w'akagari, paki ya voltage hamwe nudupapuro twa pake bigomba kuba igihe-cyo guhuza imbaraga kugirango tugereranye imbaraga nukuri kugereranya.Gufata ibyitegererezo mugihe runaka intera bita synchronisation intera.Gutoya guhuza intera, niko kugereranya imbaraga cyangwa kugereranya impedance.Ikosa ryamakuru adahuje amakuru aragereranijwe.Nibisobanuro nyabyo leta-yishyuza, niko abashoferi ba mileage babona.

Ibisabwa byo guhuza

Ibisekuruza bizakurikiraho BMS bizakenera guhuza imbaraga hamwe no gupima ibipimo bitarenze ms 1, ariko hariho ingorane zo kuzuza iki cyifuzo:

Ikurikiranabikorwa rya selile zose hamwe na monitor ikurikirana bifite amasoko atandukanye;kubwibyo, ibyitegererezo byabonetse ntabwo byahujwe.
Buri monitor ya selile ishobora gupima kuva selile esheshatu kugeza kuri 18;buri selile yamakuru ni 16 bits.Hano hari amakuru menshi akeneye koherezwa hejuru ya daisy-urunigi, rushobora gukoresha ingengo yimari yemerewe kuri voltage na syncronisation ya none.
Akayunguruzo kose nka voltage muyunguruzi cyangwa akayunguruzo kerekana inzira yerekana ibimenyetso, bigira uruhare kuri voltage no gutinda kwa sinhron.
TI ya BQ79616-Q1, BQ79614-Q1 na BQ79612-Q1 ikurikirana ya batiri irashobora gukomeza umubano mugihe utanga itegeko ryo gutangira ADC kuri monitor ya selire na monitor ya pack.Izi monitor za TI nazo zishyigikira gutinda kwa ADC kugirango zishyure ubukererwe bwogukwirakwiza mugihe cyohereza ADC gutangira itegeko munsi ya daisy-urunigi.

Umwanzuro

Imbaraga nini zo gukwirakwiza amashanyarazi zibera mu nganda zitwara ibinyabiziga zitera gukenera kugabanya ubukana bwa BMSs wongeyeho ibikoresho bya elegitoroniki mu gasanduku gahuza, mu gihe bizamura umutekano wa sisitemu.Igenzura rya paki rirashobora gupima voltage mbere na nyuma ya relay, ikigezweho binyuze muri bateri.Iterambere ryukuri muri voltage nibipimo bigezweho bizavamo gukoresha neza bateri.

Umuvuduko mwiza wa voltage hamwe na syncronisation igezweho ituma leta-yubuzima isobanutse neza, leta-y-amashanyarazi hamwe n’amashanyarazi impedance spectroscopy ibara bizavamo gukoresha neza bateri kugirango yongere ubuzima bwayo, ndetse no kongera urwego rwo gutwara.