SAE J 2784:2021-01-27

SAE J 2784:2021-01-27

FMVSS Inertia Dynamometer Test Procedure for Vehicles Below 4540 kg GVWR

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Details

This document derives from the Federal Motor Vehicle Safety Standards 105 and 135 vehicle test protocols as single-ended inertia-dynamometer test procedures. The test sequences enable brake output measurement, friction material effectiveness, and corner performance in a controlled and repeatable environment. This SAE Recommended Practice (RP) also includes optional sections for parking brake output performance for rear brakes. It applies to brake corners from vehicles covered by the FMVSS 105 and 135 when using the appropriate brake hardware and test parameters. The FMVSS 135 applies to all passenger cars and light trucks up to 3500 kg of GVWR. The FMVSS 105 applies to all passenger cars, multi-purpose vehicles, buses, and trucks above 3500 kg of GVWR. This document does not include testing for school bus applications or vehicles equipped with hydraulic brakes with a GVWR above 4540 kg.

Additional Info

Author Society of Automotive Engineers International (SAE)
Committee Brake Dynamometer Standards Committee
Published by SAE
Document type Standard
ICS 43.040.40 : Braking systems
Number of pages 30
Replace SAE J 2784:2009-09-04
Document history SAE J 2784:2009-09-04,SAE J 2784:2007-12-13
Keyword SAE 2784,SAE J2784,SAE J2784,SAE J 2784