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SAE J2784

(R) FMVSS Inertia Dynamometer Test Procedure for Vehicles Below 4540 kg GVWR

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Organization: SAE
Publication Date: 1 January 2021
Status: active
Page Count: 30
scope:

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.

Purpose

The purpose of this procedure is to assess the performance of a brake corner assembly during conditions that correspond to the FMVSS 105 and 135 vehicle test procedures.

Document History

SAE J2784
January 1, 2021
(R) FMVSS Inertia Dynamometer Test Procedure for Vehicles Below 4540 kg GVWR
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...
September 1, 2009
FMVSS Inertia Dynamometer Test Procedure for Vehicles Below 4540 kg GVWR
This document is derived from the Federal Motor Vehicle Safety Standards 105 and 135 vehicle test protocols as singleended inertia-dynamometer test procedures. It measures brake output, friction...
December 1, 2007
FMVSS 135 Inertia Dynamometer Test Procedure
This Recommended Practice is derived from the Federal Motor Vehicle Safety Standard 135 vehicle test protocol as a single-ended inertia-dynamometer test procedure. It measures brake output, friction...

References

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