
Connector Clicks
Connector fastening quality inspection
B Company connector fastening sound detection
Subtle fastening sounds quantify soft-connection defect standards for EV transmission connectors
Target sound
Connector Clicks
Project overview
A case that identifies loose connector fastening through subtle sounds that are hard to hear manually
Field challenge
- Missed fastening was a high-risk quality issue tied directly to driving stability
- The fastening signal was too small to distinguish reliably by ear
- Work methods and recording conditions kept changing in the field
Outcome summary
97.73%Cycle judgment accuracy
97%+Fastening sound classification accuracy
SNR 1.77dBSubtle signal detection