依据标准反应谱，得到各阶频率对应的反应谱值。
The value of reaction spectrum of natural frequencies is calculated by standard reaction spectrum.
借助根据发动机(10)的燃烧频率所限定出的频率来过滤旋转速度，以得到与目前转矩相对应的值。
The rotation speed is filtered by a frequency which is defined based on a combustion frequency of the engine (10) to obtain a value corresponding to a current torque.
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