Development of an End-of-Line Driveline System Balance Tester

Paper #:
  • 2015-01-2187

Published:
  • 2015-06-15
DOI:
  • 10.4271/2015-01-2187
Citation:
Gehringer, M. and Thompson, K., "Development of an End-of-Line Driveline System Balance Tester," SAE Technical Paper 2015-01-2187, 2015, doi:10.4271/2015-01-2187.
Pages:
10
Abstract:
This paper describes the development of a semi-automated end-of-line driveline system balance tester for an automotive assembly plant. The overall objective was to provide final quality assurance for acceptable driveline noise and vibration refinement in a rear wheel drive vehicle. The problem to be solved was how to measure the driveline system unbalance within assembly plant constraints including cycle time, operator capability, and integration with a pre-existing vehicle roll test machine. Several challenging aspects of the tester design and development are presented and solutions to these challenges are addressed. Major design aspects addressed included non-contacting vibration sensing, data acquisition/processing system and vehicle position feedback. Development challenges addressed included interaction of engine and driveline vibration orders, flexible driveline coupling effects, tachometer positional reference error, and vehicle-to-vehicle variation of influence coefficients.
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