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Correlating Dynamometer and Vehicle Brake Test Results: Brake Squeal
Technical Paper
2001-01-3143
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Brake noise dynamometers are fundamental engineering tools for the systematic and efficient investigations of noise. However, the data obtained from a dynamometer must correlate with the noise achievable on a corresponding vehicle to be of true value in an investigation.
The factors that can influence correlation between both vehicle and dynamometer tests are examined. In particular, correlation based on the following:
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techniques for noise data acquisition, evaluation and testing
- variations of the brake system under load and time such as aging and wear effects
- differences in the test procedure brake application parameters
- variability of individual brake system components in terms of technical release and part-to-part variation.
Problems and approaches for correlating dynamometer and vehicle brake test results are described. Test results for the correlation dynamometer - vehicle are also shown.
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Authors
Citation
Abendroth, H. and Schwarz, U., "Correlating Dynamometer and Vehicle Brake Test Results: Brake Squeal," SAE Technical Paper 2001-01-3143, 2001, https://doi.org/10.4271/2001-01-3143.Also In
References
- Noise Dyno Test Procedure AK noise
- Noise Dyno Test Procedure SAE 2521
- Wagenführer H. “Bremsgeräusche” ATZ August 1964-66
- Blaschke P. “Global NVH Matrix for Brake Noise” SAE Brake Colloquium 1999
- Abendroth H. “A New Approach to Brake Testing” SAE paper No 850080
- Abendroth H. Wernitz B. “The Integrated Test Concept Dyno - Vehicle; Performance & Noise” SAE paper No 2000-01-2774