Intelligent junction bhokisi ine voltage uye ikozvino kuwiriranisa muEVs

Intelligent junction bhokisi ine voltage uye ikozvino kuwiriranisa muEVs

Sezvo mota dzemagetsi (EVs) dzichiwedzera kufarirwa, dambudziko revagadziri vemotokari nderekubvisa "kufunganya kwakasiyana" kwevatyairi uku vachiita kuti mota idhure.Izvi zvinoturikira mukuita kuti mabhatiri anotakura aite shoma ane simba repamusoro.Yese watt-awa yakachengetwa uye kudzoserwa kubva kumasero yakakosha kuti iwedzere kutyaira.

Kuve nemayero chaiwo evoltiji, tembiricha uye zvazvino kwakakosha pakuwana fungidziro yepamusoro yenzvimbo yekuchaja kana mamiriro ehutano hwesero rega rega musystem.

Basa guru rebhatiri manejimendi system (BMS) nderekutarisa maseru voltages, pack voltages uye kurongedza zvazvino.Mufananidzo 1a unoratidza bhatiri paki mubhokisi rakasvibira rine maseru akawanda akaturikidzana.Iyo cell supervisor unit inosanganisira maseru monitors anotarisa voltage uye tembiricha yemaseru.
Benefits yehungwaru BJB:

Inobvisa waya uye tambo dzemagetsi.
Inovandudza magetsi uye zviyero zvazvino neruzha rwakaderera.
Inorerutsa Hardware uye software kuvandudza.Nekuti Texas Instruments (TI) paki yekutarisisa uye maseru monitors anobva kumhuri imwechete yemidziyo, zvivakwa zvavo uye mamepu ekunyoresa zvese zvakafanana.
Inogonesa vanogadzira masisitimu kuwiriranisa pack voltage uye zviyero zvazvino.Kunonoka kuwiriranisa kudiki kunosimudzira fungidziro yemamiriro-ye-charge.
Voltage, tembiricha uye kuyerwa ikozvino
Voltage: Iyo voltage inoyerwa uchishandisa yakakamurwa-pasi resistor tambo.Zviyero izvi zvinotarisa kana magetsi emagetsi akavhurika kana akavharwa.
Tembiricha: Iyo tembiricha zviyero zvinotarisisa tembiricha ye shunt resistor kuitira kuti MCU ishandise muripo, pamwe nekupisa kwevanobatika kuti vaone kuti havana kusimbiswa.
Zvazvino: Zviyero zvazvino zvinobva pa:
A shunt resistor.Nekuti mafambiro ari muEV anogona kukwira kuzviuru zveamperes, aya mashunt resistors madiki zvakanyanya - muhuwandu hwe25 µOhms kusvika 50 µOhms.
A hall-effect sensor.Hunhu hwayo hune simba hunowanzo kuganhurirwa, nekudaro, dzimwe nguva kune akawanda masensa muhurongwa hwekuyera huwandu hwese.Hall-effect sensors inongogara inotarirwa nekukanganiswa kwemagetsi.Iwe unogona kuisa masensa aya chero kupi muhurongwa, zvisinei, uye ivo vari kupa chiyero chega.
Voltage uye ikozvino kuwiriranisa

Voltage uye yazvino kuwiriranisa ndiyo nguva yekunonoka kuripo kuti uenzanise voltage uye yazvino pakati peyekutarisisa paki uye sero monitor.Zviyero izvi zvinonyanya kushandiswa kuverenga mamiriro ekubhadharisa uye mamiriro ehutano kuburikidza ne electro-impedance spectroscopy.Kuverenga iyo impedance yesero nekuyera voltage, yazvino uye simba pasero inogonesa iyo BMS kutarisa pakarepo simba remota.

Iyo sero voltage, pack voltage uye pack yazvino zvinofanirwa kuwiriraniswa nguva kuti ipe iro rakanyatsojeka simba uye impedance fungidziro.Kutora sampuli mukati meimwe nguva yenguva kunonzi kupindirana kwepakati.Iyo idiki yenguva yekuyananisa, ndiyo yakanyanya kunaka fungidziro yesimba kana fungidziro yeimpedance.Iko kukanganisa kwe data isina kuwiriraniswa inoenzanirana.Iyo yakanyanya kunaka fungidziro yemamiriro-ye-charge, madhiraivha emamaira anowedzera.

Zvinodiwa zvekuyananisa

Inotevera-chizvarwa BMS inoda kuwiriraniswa kwemagetsi uye zviyero zvazvino zvisingasviki 1 ms, asi pane zvinonetsa mukuzadzisa ichi chinodiwa:

Ese maseru monitors uye paki monitors ane akasiyana wachi masosi;saka, sampuli dzakatorwa hadzina kuwiriraniswa.
Sero rimwe nerimwe rinotarisa raigona kuyera kubva kumatanhatu kusvika kumasero gumi nemasere;data yesero rimwe nerimwe rakareba 16 bits.Pane data rakawanda rinoda kufambisa pamusoro peiyo daisy-chain interface, iyo inogona kushandisa bhajeti yenguva inotenderwa voltage uye kuwiriranisa kwazvino.
Chero mafirita senge voltage sefa kana yazvino sefa inopesvedzera nzira yechiratidzo, ichibatsira kumagetsi uye kunonoka kuwiriranisa kwazvino.
TI's BQ79616-Q1, BQ79614-Q1 uye BQ79612-Q1 bhatiri monitors inogona kuchengetedza hukama hwenguva nekupa ADC yekutanga kuraira kune cell monitor uye paki yekutarisa.Aya maTI bhatiri monitors anotsigirawo kunonoka ADC sampling kutsiva kunonoka kuparadzira paunenge uchitumira iyo ADC yekutanga kuraira pasi daisy-chain interface.

Mhedziso

Kuedza kukuru kwemagetsi kuri kuitika muindasitiri yemotokari kuri kutyaira kudiwa kwekudzikisa kuomarara kweBMS nekuwedzera zvemagetsi mubhokisi rejunction, uku uchiwedzera kuchengetedzeka kwehurongwa.Paki yekutarisa inogona munharaunda kuyera ma voltages pamberi uye mushure mekudzoreredza, ikozvino kuburikidza nebhatiri pack.Iko kunatsurudzwa kweiyo voltage uye zviyero zvazvino zvinozoguma nekushandiswa kwakakwana kwebhatiri.

Inoshanda voltage uye ikozvino kuwiriranisa inogonesa chaiyo mamiriro-ye-hutano, mamiriro-ye-charge uye magetsi impedance spectroscopy kuverenga izvo zvinozoguma nekushandiswa kwakaringana kwebhatiri kuwedzera hupenyu hwayo, pamwe nekuwedzera kutyaira.