| 摘要 |
The invention relates to a method for diagnosing a torque impulse generator. The torque impulse generator comprises a rotational input portion, a torque output portion, an oil reservoir and a torque generating arrangement converting rotation of the input portion to torque impulses at the torque output portion. The method comprises: - detecting an acoustic signal from the torque impulse generator while generating torque impulses, - extracting the frequency of torque impulses from the acoustic signal, and - diagnosing the torque impulse generator based on the frequency of torque impulses, to indicate the level of oil in the oil reservoir. The invention further relates to a computer program product. |
