Yintoni iCoulomb yokubala?
Ndibuzwe malunga noqikelelo lwe-SOC amaxesha amaninzi kunokuba ndinokubala. Umbuzo udla ngokuvela xa ipakethe yomntu ebonisa i-30% kwigeyiji kodwa ivale emva kwemizuzu emibini. Amaxesha alithoba kwishumi, unobangela wengcambu ubuyela emva ekubaleni kweCoulomb kungalunganga.
Ingcamango
Iingoma zokubala zaseCoulomb zihlawulisa kwaye zihlawule. Ilula kakhulu ephepheni. Udibanisa okwangoku ngokuhamba kwexesha, gcina i-tally, kwaye oko kukuxelela ukuba ingakanani ijusi eseleyo kwiseli.
Iisampulu ze-BMS zangoku-ziqhelekile kwenye indawo phakathi kwe-10 Hz kunye ne-100 Hz ngokuxhomekeke kwisicelo{3}}kwaye isampulu nganye iphindwa ngexesha lokuphumla. Badibanise. Susa kwindawo yakho yokuqala. Nantsi inombolo yakho yeSOC.
Apho Ifika Kubi
Nantsi into iincwadi zezifundo ezingagxininisi ngokwaneleyo. Laa sensor yangoku othembele kuyo ine-offset drift. Inempazamo yokuzuza. Inomlinganiso wobushushu. I-auto shunt eqhelekileyo inokucacisa kwi-±0.5%, kodwa oko kuphantsi kweemeko ezifanelekileyo kwi-25 degree. Yincamathisele phantsi kwe-hood ePhoenix ngoJulayi, kwaye ujonge amanani ahlukeneyo.
Ndisebenze kwinkqubo ye-48V ethambileyo ye-hybrid emva ngo-2019. Iphepha elihle lokubonisa. Kwilebhu, yonke into ilandelelwe ngokugqibeleleyo. Yibeke kwisithuthi esenza i-regenerative braking esitophini{6}}kwaye{7}}uhambe kwi-traffic, kwaye emva kweyure ezintandathu i-SOC iye yakhukuliseka nge-8%. Ubunzima be-thermal ye-shunt abukwazanga ukuhambelana nezinto ezidlulayo zangoku. Siye sagqiba ukongeza inzwa yokushisa ezinikeleyo kwi-shunt ngokwayo kwaye iqhuba i-algorithm yembuyekezo kwi-firmware ye-BMS.
Ingxaki ephantsi yangoku
Lo uluma abantu ngalo lonke ixesha. Inzwa yakho yesiphumo seHolo okanye i-shunt yakho inomgangatho wengxolo. Ngaphantsi mhlawumbi kwe-500 mA kwipakethi ye-EV eqhelekileyo, umqondiso-uku{4}}umlinganiselo wengxolo uyahlukana. Kodwa iseli isazikhupha{6}}. I-BMS isazoba umsinga othe cwaka. Abafowunelwa banokuvuza.
Kwisithuba seeveki-ezimbini zokupaka, le misinga mincinci iyadibanisa. Ndibone iipakethi zilahlekelwa yi-3-4% ye-SOC ukuba i-counter ye-Coulomb ayizange ibhalise. Umnini ubuya eholideyini, i-gauge ibonisa i-85%, kodwa umthamo wangempela usondele kwi-81%. Yenza oko amaxesha ambalwa, kwaye iifestile zakho zokuhlaziya azikwazi ukubamba.
Amanye amaqela aqhuba imodeli ehambelanayo yokuzikhupha-. Abanye banyanzela nje uhlengahlengiso lwe-OCV emva kwalo naliphi na ixesha lokuphumla kwiiyure ezi-4. Akukho mpendulo igqibeleleyo. Abantu be-ISO 26262 baya kukubuza ukuba uyiphatha njani le nto kwi-FMEA yakho, kwaye ngcono ube nesicwangciso esibhaliweyo.
Umthamo uFade
Iseli oyibonakalisileyo ngexesha lophuhliso ayisiyiyo iseli onayo emva kwemijikelo engama-500. Umthamo wegama uyehla. Ukuchasana kwangaphakathi kunyuka. Kodwa ikhawuntara yaseCoulomb ayiyazi loo nto ngaphandle kokuba uyixelele.
TI's gauge ICs -i-BQ34 uthotho, umzekelo -sebenzisa umkhondo we-impedance wangaphakathi kwaye ulungelelanise umthamo opheleleyo wentlawulo ngokuhamba kwexesha. Lo ngumzekelo{4}osekelwe kwindlela ebekwe phezu kwesiseko sokubala saseCoulomb. IMaxim 17205 yenza into efanayo. Kuyilo lwe-BMS yesiko, uyakha le nto ngokwakho, kwaye ifuna idatha eqinisekisiweyo yokuguga evela kwikhemistri yeseli yakho ethile.
Iiseli zeNCM ziziphatha ngokwahlukileyo kwi-LFP apha. I-LFP inalaa thafa lombane olusicaba elenza ukuba i-OCV-izilungiso ezisekelwe phantse zingabinamsebenzi kuluhlu lwe-SOC lwama-20-80. Uxhomekeke ekubaleni kwe-Coulomb kakhulu, okuthetha ukuba ukuchaneka kwakho okwangoku kubaluleke kakhulu.
Uhlengahlengiso olusebenzayo
Intlawulo epheleleyo ngumhlobo wakho. Xa i-voltage ibetha umda wokuphelisa kunye neetaper zangoku ezingaphantsi kwe-C/20 okanye nokuba yintoni na i-cutoff yakho, useta ngokutsha ukuya kwi-100%. Elula. Uthembekile. Isebenza ngalo lonke ixesha ucinga ukuba itshaja yakho kunye ne-BMS iyavumelana ngokuba kuthetha ukuthini "ukugcwala".
Ukuphela kokukhutshwa kunzima ngakumbi. Idolo lombane lingumnqantsa, iqondo lobushushu{1} lixhomekeke, kwaye lichatshazelwe yimbali yamva nje yomthwalo. Iisistim ezininzi azikwazi ukuhlaziya zingenanto. Basebenzisa intlawulo epheleleyo njengendawo ye-ankile kwaye bathembe ukubala phakathi.
Olunye ufakelo olumileyo logcino luqhuba uvavanyo lwamaxesha ngamaxesha. Kanye ngenyanga, inkqubo yenza ukukhutshwa okupheleleyo okulawulwayo kunye nokutshaja kwakhona. Oko kukunika inyaniso esisiseko. Abaqhubi beeFleet abane-EVs ngamanye amaxesha bayakwenza oku nabo. Iyacaphukisa kodwa isombulula ingxaki ye-drift.
Into endiyixelela iinjineli ezitsha
Ukubala kwe-Coulomb ayisiyonto i-algorithm entsonkothileyo. Kukudibanisa kunye nokuthabatha kunye nemithombo emininzi yempazamo. Ubuchwephesha kukuqonda apho iimpazamo zivela khona kunye nokuba nezicwangciso zokuzibophelela.
Fumana ukhetho lwakho lwangoku loluvo ngokufanelekileyo. Qonda ukuziphatha kobushushu. Cwangcisa isicwangciso sakho sohlengahlengiso phambi kokuba ubhale umgca omnye wekhowudi. Vavanya ngeeseli zokwenyani kumaqondo obushushu bokwenyani phantsi kweeprofayili zomthwalo wokwenyani. Ukuseta ibhentshi kunye nombane kunye nomthwalo we-elektroniki awuzukubonisa iingxaki oza kuzibona endle.
