1. Iindlela zokuVusa
Xa ivuliwe okokuqala, kukho iindlela ezintathu zokuvusa (iimveliso zexesha elizayo aziyi kufuna ukuvuselelwa):
- Ukuvuka kokuvula amaqhosha;
- Ukuvuka kokusebenza kokutshaja;
- Ukuvuka kweqhosha leBluetooth.
Kwindlela elandelayo yokuvula, kukho iindlela ezintandathu zokuvusa:
- Ukuvuka kokuvula amaqhosha;
- Ukuvuselelwa kokutshaja (xa i-voltage yokufaka yetshaja ingaphezulu nge-2V ubuncinane kune-voltage yebhetri);
- Ukuvuka kokuqalisa unxibelelwano nge-485;
- Ukuvuka kokusebenza konxibelelwano lwe-CAN;
- Ukuvuka kokusebenza kokukhupha itshaja (ngoku ≥ 2A);
- Ukuvuka kokusebenza kwesitshixo.
2. Imo yokulala ye-BMS
II-BMSIngena kwimowudi yamandla aphantsi (ixesha elimiselweyo yimizuzwana engama-3600) xa kungekho nxibelelwano, akukho mbane wokutshaja/wokukhupha, kwaye akukho signal yokuvuka. Ngexesha lemo yokulala, iiMOSFET zokutshaja nokukhupha zihlala ziqhagamshelwe ngaphandle kokuba kufunyenwe umbane ongaphantsi kwebhetri, apho iiMOSFET ziya kuqhawuka. Ukuba iBMS ifumanisa iimpawu zonxibelelwano okanye imisinga yokutshaja/yokukhupha (≥2A, kwaye ukuze isebenze ukutshaja, ivoltage yokufaka yetshaja kufuneka ibe ngaphezulu kwe-2V kunombane webhetri, okanye kukho uphawu lokuvuka), iya kuphendula ngoko nangoko ize ingene kwimeko yokusebenza yokuvuka.
3. Icebo lokulinganisa ii-SOC
Umthamo opheleleyo webhetri kunye ne-xxAH usetwa ngekhompyutha ephetheyo. Ngexesha lokutshaja, xa i-voltage yeseli ifikelela kwixabiso eliphezulu le-overvoltage kwaye kukho i-charging current, i-SOC iya kulinganiswa ukuya kwi-100%. (Ngexesha lokukhupha, ngenxa yeempazamo zokubala ze-SOC, i-SOC isenokungabi yi-0% nokuba iimeko ze-alamu ye-undervoltage ziyafezekiswa. Qaphela: Icebo lokunyanzela i-SOC ukuba ibe zero emva kokukhuselwa kwe-overdischarge yeseli (undervoltage) linokwenziwa ngokwezifiso.)
4. Icebo Lokusingatha Iimpazamo
Iziphene zahlulwe zibe ngamanqanaba amabini. I-BMS iphatha amanqanaba ahlukeneyo eziphene ngokwahlukileyo:
- Inqanaba loku-1: Iimpazamo ezincinci, ii-alamu ze-BMS kuphela.
- Inqanaba lesi-2: Iimpazamo ezinkulu, ii-alamu ze-BMS kwaye zinqumla iswitshi ye-MOS.
Kwezi mpazamo zilandelayo zeNqanaba lesi-2, iswitshi yeMOS ayinqunywa: i-alamu yomahluko wevolthi ephezulu, i-alamu yomahluko weqondo lobushushu ephezulu, i-alamu yeSOC ephezulu, kunye ne-alamu yeSOC ephantsi.
5. Ulawulo Lokulinganisela
Kusetyenziswa ukulinganisela okungasebenziyo.I-BMS ilawula ukukhutshwa kweeseli ze-voltage eziphezulungokusebenzisa ii-resistor, zichitha amandla njengobushushu. Umsinga wokulinganisela yi-30mA. Ukulinganisela kuqalwa xa zonke ezi meko zilandelayo zifezekiswa:
- Ngexesha lokutshaja;
- I-voltage yokusebenza elinganiselayo ifikelelwa (imiselwe ngekhompyutha ephetheyo); Umahluko we-voltage phakathi kweeseli > 50mV (50mV lixabiso elimiselweyo, elimiselwe ngekhompyutha ephetheyo).
- I-voltage yokusebenza emiselweyo ye-lithium iron phosphate: 3.2V;
- I-voltage yokusebenza emiselweyo ye-ternary lithium: 3.8V;
- I-voltage yokusebenza emiselweyo ye-titanate ye-lithium: 2.4V;
6. Uqikelelo lwe-SOC
I-BMS iqikelela i-SOC isebenzisa indlela yokubala i-coulomb, iqokelela itshaja okanye ukukhupha ukuze iqikelele ixabiso le-SOC yebhetri.
Impazamo yoQikelelo lwe-SOC:
| Ukuchaneka | Uluhlu lweSOC |
|---|---|
| ≤ 10% | 0% < I-SOC < 100% |
7. I-Voltage, i-Current, kunye nokuchaneka kobushushu
| Umsebenzi | Ukuchaneka | Iyunithi |
|---|---|---|
| I-Voltage yeSeli | ≤ 15% | mV |
| I-Voltage iyonke | ≤ 1% | V |
| Okwangoku | ≤ 3%FSR | A |
| Ubushushu | ≤ 2 | °C |
8. Ukusetyenziswa koMbane
- Umsinga wokusebenzisa webhodi yehardware xa usebenza: < 500µA;
- Umsinga wokusebenzisa webhodi yesoftware xa usebenza: < 35mA (ngaphandle konxibelelwano lwangaphandle: < 25mA);
- Umsinga wokuzisebenzisa ngokwakho kwimo yokulala: < 800µA.
9. Iswitshi ethambileyo kunye neswitshi yesitshixo
- I-logic emiselweyo yomsebenzi we-soft switch yi-inverse logic; ingenziwa ngokwezifiso kwi-logic elungileyo.
- Umsebenzi osisiseko weswitshi yesitshixo kukuvula i-BMS; eminye imisebenzi yengqiqo inokwenziwa ngokwezifiso.
Ixesha lokuthumela: Julayi-12-2024
