SAE J3002 (JAN2021)

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Disc and Drum Brake Dynamometer Low-Frequency Noise Test Procedure

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SAE J3002 (JAN2021)

Disc and Drum Brake Dynamometer Low-Frequency Noise Test Procedure

PUBLISH DATE 2021
PAGES 13
SAE J3002 (JAN2021)

This test procedure outlines the necessary test equipment (test fixture, dynamometer, data acquisition system, etc.) and test sequence required to test for low-frequency brake noise (200 Hz to 1.25 kHz) on a brake noise dynamometer.

It is intended to complement SAE J2521, which focuses on high-frequency brake squeal.

This RP applies to passenger cars and light trucks with a gross vehicle weight rating below 4536 kg. Before using this RP for heavier vehicles, consult and agree with the test requestor and the testing facility.

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