1. Njira Zodzutsa
Mukayatsidwa koyamba, pali njira zitatu zodzutsa (zogulitsa zam'tsogolo sizidzafunika kuyambitsa):
- Kutsegula kwa batani;
- Kuyimitsa kudzutsa kudzutsidwa;
- Kusintha kwa batani la Bluetooth.
Kwa kuyatsa kotsatira, pali njira zisanu ndi imodzi zodzutsa:
- Kutsegula kwa batani;
- Kuyitsa kudzutsa kudzutsa (pamene magetsi olowera chaja ndi osachepera 2V kuposa mphamvu ya batri);
- 485 kulankhulana kutsegula kudzuka;
- CAN kulankhulana kutsegula kudzuka;
- Kutulutsa koyambitsa kudzutsa (panopa ≥ 2A);
- Kutsegula kwachinsinsi.
2. BMS Sleep Mode
TheBMSimalowa m'njira yotsika mphamvu (nthawi yokhazikika ndi masekondi a 3600) pamene palibe kulankhulana, palibe malipiro / kutulutsa pakalipano, ndipo palibe chizindikiro chowuka. Munthawi ya kugona, ma MOSFET olipira ndi kutulutsa amakhalabe olumikizidwa pokhapokha ngati batire ilibe mphamvu, pomwe ma MOSFET amadula. BMS ikazindikira ma siginecha akuyankhulirana kapena kutulutsa / kutulutsa mafunde (≥2A, ndikuyatsanso, magetsi olowera chaja ayenera kukhala osachepera 2V kuposa mphamvu ya batri, kapena pali chizindikiro chodzutsa), imayankha nthawi yomweyo. lowetsani ntchito yodzuka.
3. SOC Calibration Strategy
Kuchuluka kweni kweni kwa batire ndi xxAH kumayikidwa kudzera pakompyuta yolandila. Pakulipira, mphamvu yamagetsi ikafika pamtengo wokwera kwambiri ndipo pakali pano, SOC idzasinthidwa kukhala 100%. (Panthawi yotulutsa, chifukwa cha zolakwika zowerengera za SOC, SOC singakhale 0% ngakhale ma alarm apansi akukwaniritsidwa. Zindikirani: Njira yokakamiza SOC kukhala ziro pambuyo pa chitetezo cha cell overdischarge (undervoltage) ikhoza kusinthidwa.)
4. Njira Yoyendetsera Zolakwa
Zolakwa zimagawidwa m'magulu awiri. BMS imasamalira magawo osiyanasiyana a zolakwika mosiyanasiyana:
- Level 1: Zolakwika zazing'ono, BMS imangowopsa.
- Gawo 2: Zolakwa zazikulu, ma alarm a BMS ndikudula chosinthira cha MOS.
Pazolakwa za Level 2 zotsatirazi, chosinthira cha MOS sichimadulidwa: ma alarm amphamvu kwambiri, ma alarm akusintha kutentha kwambiri, ma alarm a SOC apamwamba, ndi alamu yotsika ya SOC.
5. Kuwongolera Kuwongolera
Passive balancing amagwiritsidwa ntchito. TheBMS imayang'anira kutulutsa kwa ma cell amphamvu kwambirikupyolera mu resistors, kutaya mphamvu monga kutentha. Kusanja kwapano ndi 30mA. Kulinganiza kumayambika pamene zonse zotsatirazi zakwaniritsidwa:
- Panthawi yolipira;
- Mphamvu yamagetsi yolumikizira imafikira (yokhazikika kudzera pa kompyuta yolandila); Kusiyana kwamagetsi pakati pa ma cell> 50mV (50mV ndiye mtengo wokhazikika, wokhazikika kudzera pamakompyuta omwe ali nawo).
- Mosasinthika kutsegula voteji kwa lithiamu chitsulo mankwala: 3.2V;
- Mosasinthika kutsegula voteji kwa ternary lithiamu: 3.8V;
- Mosasinthika kutsegula voteji kwa lithiamu titanate: 2.4V;
6. Kuyerekeza kwa SOC
BMS imayerekezera SOC pogwiritsa ntchito njira yowerengera coulomb, kusonkhanitsa mtengo kapena kutulutsa kuti muyerekeze mtengo wa SOC wa batri.
Cholakwika pakuyerekeza kwa SOC:
| Kulondola | Mtundu wa SOC |
|---|---|
| ≤ 10% | 0% < SOC <100% |
7. Kulondola kwa Voltage, Panopa, ndi Kutentha
| Ntchito | Kulondola | Chigawo |
|---|---|---|
| Ma cell Voltage | ≤ 15% | mV |
| Total Voltage | ≤ 1% | V |
| Panopa | ≤ 3% FSR | A |
| Kutentha | ≤2 | °C |
8. Kugwiritsa Ntchito Mphamvu
- Kudzigwiritsira ntchito panopa pa bolodi la hardware pamene mukugwira ntchito: <500µA;
- Kudzigwiritsira ntchito panopa pa bolodi la mapulogalamu pamene mukugwira ntchito: <35mA (popanda kulankhulana kunja: <25mA);
- Kudzigwiritsira ntchito panopa mukamagona: <800µA.
9. Kusintha Kofewa ndi Kusintha Kwachinsinsi
- Lingaliro losasinthika la ntchito yosinthira yofewa ndi malingaliro osintha; zitha kusinthidwa kukhala zomveka bwino.
- Ntchito yosasinthika ya switch switch ndikuyambitsa BMS; ntchito zina zomveka zitha kusinthidwa mwamakonda.
Nthawi yotumiza: Jul-12-2024
