Other Parts Discussed in Thread: GPCCHEM
Tool/software:
About BQ34Z100-G1, I want to limit the Ra table increase by a big margin after learning.What parameters do I need to modify.And,why the Ra table will update abnormally in the customer market.
Recently, we have received market feedback regarding abnormal Ra table.SOC and FCC from 100 jump to 0 when charge in the end.
The battery(4S3P) capacity is about 15000mAh. The learning status is 06 before pack produce.The information as follows.
| Gas Gauging | State | Qmax Cell 0 | 15317 | mAmpHr |
| Gas Gauging | State | Cycle Count | 0 | num |
| Gas Gauging | State | Update Status | 6 | num |
The Ra table abnormal when cycles is 14.
| Data | Cycle Count | 14 | Count |
Ra limit remains at default settings.
| IT Cfg | Max Res Factor | 50 | num |
| IT Cfg | Min Res Factor | 1 | num |
| IT Cfg | Ra Filter | 500 | num |
| IT Cfg | Ra Max Delta | 15 | % |
The limit of Ra variation is 1.5 times.By comparing R_a0 and R_a0x, the update amplitude has exceeded 7 times.
Check the Ra table information as follows:
| Ra Table | R_a0 | R_a0 Flag | 0 | Hex |
| Ra Table | R_a0 | R_a0 0 | 966 | Num |
| Ra Table | R_a0 | R_a0 1 | 966 | Num |
| Ra Table | R_a0 | R_a0 2 | 7 | Num |
| Ra Table | R_a0 | R_a0 3 | 21 | Num |
| Ra Table | R_a0 | R_a0 4 | 7 | Num |
| Ra Table | R_a0 | R_a0 5 | 20 | Num |
| Ra Table | R_a0 | R_a0 6 | 29 | Num |
| Ra Table | R_a0 | R_a0 7 | 52 | Num |
| Ra Table | R_a0 | R_a0 8 | 61 | Num |
| Ra Table | R_a0 | R_a0 9 | 67 | Num |
| Ra Table | R_a0 | R_a0 10 | 96 | Num |
| Ra Table | R_a0 | R_a0 11 | 133 | Num |
| Ra Table | R_a0 | R_a0 12 | 457 | Num |
| Ra Table | R_a0 | R_a0 13 | 818 | Num |
| Ra Table | R_a0 | R_a0 14 | 1903 | Num |
| Ra Table | R_a0x | R_a0x Flag | 55 | Hex |
| Ra Table | R_a0x | R_a0x 0 | 138 | Num |
| Ra Table | R_a0x | R_a0x 1 | 138 | Num |
| Ra Table | R_a0x | R_a0x 2 | 1 | Num |
| Ra Table | R_a0x | R_a0x 3 | 3 | Num |
| Ra Table | R_a0x | R_a0x 4 | 1 | Num |
| Ra Table | R_a0x | R_a0x 5 | 3 | Num |
| Ra Table | R_a0x | R_a0x 6 | 4 | Num |
| Ra Table | R_a0x | R_a0x 7 | 7 | Num |
| Ra Table | R_a0x | R_a0x 8 | 9 | Num |
| Ra Table | R_a0x | R_a0x 9 | 10 | Num |
| Ra Table | R_a0x | R_a0x 10 | 14 | Num |
| Ra Table | R_a0x | R_a0x 11 | 19 | Num |
| Ra Table | R_a0x | R_a0x 12 | 65 | Num |
| Ra Table | R_a0x | R_a0x 13 | 117 | Num |
| Ra Table | R_a0x | R_a0x 14 | 272 | Num |
