Develop an automated end-of-line pass/fail testing system to ensure product quality, eliminate containment and significantly reduce returns and warranty claims based on NVH issues.
Signalysis developed an end-of-line IQC™ test system integrated into the production line for 100% unit testing. The test station ensured the ability to:
The test station included: computer control system, multi-channel data acquisition system, digital I/O interface hardware, seat track motor control hardware / software, accelerometers / automated placement devices and SigQC™ analysis software.
Power seat tracks were run through their entire range of motions with vibration and motor current measurements recorded and analyzed. SigQC employs high-level post-processing in time and frequency domains to detect faults in the drive motors, gear systems and other moving parts. Faulty seats were tagged by the software so that they could be repaired and retested before being shipped to the customer.
The following measurements and analysis types were utilized in the test process:
As a result of implementing the Signalysis IQC Test System, the manufacturer was able to:
