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fast 角度估算问题： 电机空载 500转时角度估算正确，逐步加载 电流达到20A (此时电机任然500转），fast估算角度就不正确了，为什么？
我是和hall角度对比的，电流大时hall角度正常而fast角度开始跳动，电机发出异响。
