SAE J2909_201005

1. SCOPE
2. REFERENCES
3. DEFINITIONS
4. INSTRUMENTATION AND RECORDING
5. TEST CONDITIONS
6. STOPPING DISTANCE TEST PROCEDURE
7. DATA ANALYSIS
APPENDIX A - EXAMPLES OF TIRE BURNISH EFFECT ON STOPPING
             DISTANCE
APPENDIX B - SURFACE FRICTION EXAMPLES
APPENDIX C - FMVSS135 BRAKE BURNISH DESCRIPTION (SECTION S7.1)
APPENDIX D - BRAKE RESPONSE TIME EFFECT ON STOPPING DISTANCE CONVERSION
APPENDIX E - SURFACE FRICTION CORRECTION BASED ON
             SURFACE TEMPERATURE - EXAMPLE
APPENDIX F - VEHICLE SPEED AND SURFACE FRICTION CORRECTION
             EXAMPLE
APPENDIX G - DATRON BRAKE PEDAL SWITCH TRIGGER VERSUS
             BRAKE PEDAL FORCE
APPENDIX H - WETTED TRACK SURFACE PHOTOGRAPH

Sets up best practices to measure vehicle stopping distance on dry or wet asphalt in a straight path of travel intended for the purpose of publishing stopping distance by manufacturers and media organizations for vehicles with original equipment tires.

This document establishes best practices to measure vehicle stopping distance on dry asphalt in a straight path of travel intended for the purpose of publishing stopping distance by manufacturers and media organizations. It is recommended that the test method within be adopted for all vehicles less than 10 000 lb (4536 kg) GVWR. This procedure is typically used with initial speeds of 100 km/h and 60 mph, but other speeds may be used.