Automated Production Noise Testing of Power Steering Pumps

Paper #:
  • 971911

Published:
  • 1997-05-20
Citation:
Bleitz, D., Fernholz, C., and Ivkovich, S., "Automated Production Noise Testing of Power Steering Pumps," SAE Technical Paper 971911, 1997, https://doi.org/10.4271/971911.
Pages:
9
Abstract:
This case study presents a new automated production noise test for power steering pumps. The test included adaptive noise cancellation, and a neural network implementation. The result mapped the pump acceleration signature into an objective repeatable noise metric.The test algorithm was a distributed DSP architecture designed for real-time measurement and decision processing. It was implemented with no increase in test cycle time. It accomplished the correlation of in-vehicle power steering pump noise to it's vibration characteristics, and retrofitting of accelerometers in place of microphones for acceptance testing.
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