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SAE J2673 (MAR2021)

Current Revision

Straight-Line Braking Test for Truck and Bus Tires

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This SAE Recommended Practice (RP) describes a test method for determination of heavy truck (Class VI, VII, and VIII) tire force and moment properties under straight-line braking conditions. The properties are acquired as functions of normal force and slip ratio using a sequence specified in this practice. At each normal force increment, the slip ratio is continually changed by application of a braking torque ramp. The data are suitable for use in vehicle dynamics modeling, comparative evaluations for research and development purposes, and manufacturing quality control. This document is intended to be a general guideline for testing on an ideal machine. Users of this RP may modify the recommended protocols to satify the needs of specific use-cases; e.g., reducing the recommended number of test loads and/or pressures for benchmarking purposes. However, due care is necessary when modifying the protocols to maintain data integrity.

SDO SAE: SAE International
Document Number J2673
Publication Date March 1, 2021
Language en - English
Page Count 25
Revision Level 202103
Supercedes
Committee
Publish Date Document Id Type View
March 1, 2021 J2673_202103 Revision
June 6, 2014 J2673_201406 Revision
May 4, 2004 J2673_200405 Revision