Mun ye tiɲɛ ye-Waati kɔlɔsili?
BMS ka kan ka a dɔn min bɛ ka kɛ pake kɔnɔ. Voltage kelen-kelen bɛɛ, current bɛɛ lajɛlen, funteni bɛ yɔrɔ caman na. Nin kunnafoniw bɛ na ka taa a fɛ, u tɛ misali ta siɲɛ kelen-kelen. O ye tiɲɛ ye-Waati kɔlɔsili.
Voltage sumani .
Nin yɔrɔ in de la musaka fanba bɛ taa BMS dilancogo la.
Seli kelen-kelen bɛɛ walima paralɛli kulu mago bɛ a yɛrɛ ka tension sense line la ka segin analog front end IC kan. for a 16S pake min bɛ se ka ɲɛnabɔ. 100S+ EV pake kama i bɛ AFE chips daisy caman lajɛ-cakɛda ɲɔgɔn na, kumaɲɔgɔnya yɔrɔ kelen u ni ɲɔgɔn cɛ, ani wiring harness min bɛ cɛsiri lakika kɛ ka sira di ka saniya. Mankan pickup ye kɛlɛ ye min bɛ kɛ tuma bɛɛ. Senfɛsira janw bɛ baara kɛ i n’a fɔ antɛniw. Twisted pairs bɛ dɛmɛ. K’a to sanfɛ-sira minnu bɛ sisan senfɛ, olu bɛ dɛmɛ ka tɛmɛ.
Afe accuracy spec nafa ka bon kosɛbɛ ka tɛmɛ mɔgɔw bɛ miiri min na. NMC seliw bɛ se ka 1,4V sɔrɔ u bɛ se ka baara kɛ ni tension ye. Ni 4.2V ye i falen don. 4.25V la aw bɛ litiyɔmu plati ani ka selilɛri faga. O ye 50mv ye margin na. Ni aw ka AFE ye ±15MV tiɲɛni ye aw ye jeni kaban ka tɛmɛ aw ka budget tilancɛ kan sumani fili dɔrɔn kan. O de y’a to sanfɛ-voltage packs ka bɔ litiyɔmu batiri ɲuman bɛɛ la, olu bɛ baara kɛ ni AFES-6815, 6813 sɔngɔ gɛlɛn ye, o tier. Minnu sɔngɔ ka dɔgɔ, olu bɛ baara kɛ ka ɲɛ 4S fanga baarakɛminɛnw pakew kama. A tɛ kɛ ni traction ye.
LFP bɛ yafa ka caya sanfɛla laban na nka voltage curve bɛ flakɛ cɛmancɛ la fo Soc jateminɛ bɛ gɛlɛya. Aw mago bɛ tiɲɛni ɲuman na kun wɛrɛ de kama.
Sisan
Hall effect sensors walima shunts. Salonw bɛ kuran fɛ minnu bɛ dilan nɔgɔya. Shunts bɛ tiɲɛ ka tɛmɛ nka u bɛ sigi sisan sira kan, o la BMS sensing circuit ka kan ka commun-Mode voltage equal to pack voltage. A ma kɛ fɛn fitinin ye 400V sitɛmu kan.
Shunts fana bɛ fanga tiɲɛ. A 100μΩ shunt ni 500A bɛ jigin 50mV la ka 25W jeni. O ye funteni ye i ka kan ka min ɲɛnabɔ. Ani shunt resistance drifts ni temperature, o la sisan kalan bɛ drifts fo n’i ye compensation. BMS dilanw sɔngɔ gɛlɛnw tɛ. O kɔ fɛ Soc bɛ Taa tile kelen kɔnɔna na wa mɔgɔ si t'a Dɔn mun na.
Goniyahakɛ
Thermistors ye sɔngɔ gɛlɛn ye. Yɔrɔ bilali ye yɔrɔ gɛlɛn ye.
Paki bɛ se ka kɛ ni selilɛri 200 ye nka 6-8 funteni hakɛ jateminɛnanw dɔrɔn. U bɛ taa min? Jateminɛ-yɔrɔ la, seliw bɛ boli ka caya bawo u lamininen bɛ ni funteni sɔrɔyɔrɔ wɛrɛw ye. Kɔnɔnatumu minnu bɛ casing kɛrɛfɛ, olu bɛ funteni bɔ ka se ambient ma. Busbars minnu bɛ taa, olu ye funteni sɔrɔ ka bɔ ɲɔgɔndanba la. Litiyɔmu batiri sitɛmu dilannikɛla min bɛ o kɛ ka ɲɛ, o bɛ CFD baara ka ɲɛ walima a dɔgɔyalenba la, a bɛ kɛ ni funteni modɛli nɔgɔman ye ka sɔrɔ ka a yɛrɛ bila sensor yɔrɔw la. A tɔ bɛ thermistor kelen bila module kelen na ani jigiya bɛ a la ko a ka fisa.
Sensɔrɔlan ka kan ka maga selilɛri la. Aw kana pan fiɲɛ na selil kɛrɛfɛ. Fiɲɛ hakɛ min bɛ dakun dɔ kɔnɔ, o tɛ foyi fɔ i ye selilɛri sanfɛla funteni kan. An ye danfara ye degere 8-10 cɛ fiɲɛ ni selilɛri sanfɛ pakew kɔnɔ minnu tun bɛ ɲɛ papiye kan.
Sumaya-yɔrɔ-ko-fɛnw fana nafa ka bon. A bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ni funteni ye. Kalansenw bɛ kɔfɛ tiɲɛ na. Ni sensɛri bɛ se ka kɛ 45 degɛrɛ ye, seli bɛ se ka kɛ degere 52 la ani ka jiginni kɛ.
BMS bɛ min kɛ ni kunnafoniw ye .
SOC jateminɛ ye fɛnba ye. Kulomb jate bɛ don sisan waati kɔnɔ. OCV Lookup bɛ tali kɛ lafiɲɛbɔ voltage la ka kɛɲɛ ni charge ye. Kalman filɛriw walima o ɲɔgɔnnaw bɛ o fila fara ɲɔgɔn kan. Ninnu si tɛ baara kɛ ka ɲɛ. Coulomb counting drifts bawo sisan sumani tɛ dafalen ye wa i tɛ se ka daminɛ lakika dɔn abada. OCV ɲinini mago bɛ pake la walasa a ka lafiɲɛ waati dɔ kɔnɔ min tɛ kɛ baarakɛcogo basigilen na. Kalman filɛri bɛ dɛmɛ nka a ka ɲi dɔrɔn i n’a fɔ a jɔlen bɛ selilɛri modɛli min kan, ani seliw bɛ kɔrɔbaya.
SOH Estimation tracks degradation. Seko dɔgɔyali, resistance growth. A ka c’a la, o kɔrɔ ye ka charge walima discharge kɔrɔsilen dɔ boli tuma ni tuma ani ka a suma ni basigi ye. Sitimɛ dɔw b’a ɲini k’a jateminɛ ɛntɛrinɛti kan ka bɔ baarakɛcogo kunnafoniw na. A sɔrɔcogo tɛ kelen ye.
Lakanali hakilina ka nɔgɔn. Voltage ka bon kojugu, ka chargement dabila. A ka dɔgɔ kojugu, a bɛ bɔli dabila. Sisan ka bon kojugu, a bɛ tigɛ. Funteni ka ca kojugu, ka a bɔ a la walima ka a tigɛ. Olu ye dakunw sumacogo dɔrɔn ye. Ka dakunw sɔrɔ ka ɲɛ, o bɛ miiri dɔw ta-Too tight and you false-Trip constantly, too loose ani i bɛ a to seliw ka tiɲɛ.
Balannako .
Kɔnɔnatumuw bɛ bɔ ɲɔgɔn na waati kɔnɔ. passive balancing bɛ jeni ka tɛmɛn charge tɛmɛnen kan resistɛriw fɛ, a ka c’a la ni 50-100mA ye. A bɛ sɛgɛn. Lɛrɛ 4 charge cycle waati la balannako pasif bɛ se ka taa 200-400mAh. Ni aw ka seliw ye 2000mAh ye ka bɔ balansi la o tɛna a tigɛ.
Active balancing transfers charges cells ni inducteurs walima condensateurs. A teliyalen don kosɛbɛ, a bɛ baara kɛ ka ɲɛ, a sɔngɔ ka gɛlɛn, a ka gɛlɛn. Batiri litiyɔmu litiyɔmu solutionw kama, pakew bɛ cycle kosɛbɛ don o don, balancing active bɛ kɔrɔ sɔrɔ. Paki min sigilen bɛ 50% SOC la tuma caman na ni a bɛ kɛ tuma dɔw la, passive ka ɲi.
Kunnafonin
Can Bus ka bolifɛnw. Modbus ka ɲɛsin stationnaire ma. U fila bɛɛ bɛ baara kɛ. Sitimɛ tɔ bɛ baara kɛ ni fɛn o fɛn ye, i k’o sugandi.
Sankaba ɲɔgɔndan mankan ka ɲi papiye kan. Tiɲɛ na, yɔrɔw tilancɛ bɛ nɔgɔ selilɛri taamasiyɛn sɔrɔ ani installer ma budget kɛ kɛnɛma antenna ye. Sigida kunnafoniw sɛbɛnni ni u jiginni waati ni waati, o bɛ baara kɛ ka ɲɛ jagokɛla litiyɔmu batiri dilanbagaw ka baara fanba la ka tɛmɛ ɲɔgɔndan basigilen kan.
sariyaw .
ISO 6469 ani ONU ECE R100 ka ɲɛsin mobili ma. UL 9540 ka ɲɛsin a marali ma. OSHA ani sigida tasumako sariyaw ka ɲɛsin izini chargement yɔrɔw ma. Litiyɔmu batiri OEM jɛɲɔgɔn ka kan k’a dɔn minnu bɛ tali kɛ i ka sugu laɲininen na. Isolation monitoring requirements in the Automotive Standards (Mobili sariyaw) bɛ mɔgɔw lamaga ka tɛmɛ fɛn tɔw bɛɛ kan volume (fɔɔnɔ) bɔli la.
Tiɲɛ-Waati kɔlɔsili tɛ ŋaniya ye. Ɲininkali ye ko i mago bɛ tiɲɛni ni fɛn caman na cogo min na, wa o bɛ bɔ seliw la, a kɛcogo la, ani a sɔrɔcogo jugu kɔlɔlɔw la.
