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SAE J299-1993 STOPPING DISTANCE TEST PROCEDURE
Foreword-This Reaffirmed Document has been changed only to reflect the new SAE Technical Standards Board Format.
1. Scope-This SAE Recommended Practice provides a method for determining stopping distances of all motor vehicles with any type of brake system.
1.1 Purpose-This code provides the test procedure and instructions to determine motor vehicle stopping distances on any level road surface from any desired initial vehicle speed. It allows the user to impose test conditions specified by any source and designates the preferred instrumentation and techniques for achieving the accuracy that is practical with current equipment.
2. References
2.1 Applicable Publications-There are no referenced publications specified herein.
3. Definitions
3.1 Motor Vehicle-Every device which is self-propelled and equipped with driver controls in, upon, or by which any person or property is or may be transported or drawn upon a highway or upon natural terrain, excepting devices moved by human or animal power or used exclusively upon stationary rails.
3.2 Start of Brake Application-The initial movement of the brake system control.
3.3 Stopping Distance-The distance traveled by a motor vehicle from the start of a brake application to the point at which the motor vehicle stops.
3.4 Initial Stopping Speed-The speed of the motor vehicle at the start of brake application.
3.5 Instrumentation System Delay-The time between the start of brake application and the start of stopping distance readout.
4. Instrumentation and Equipment-All instrumentation and equipment used in this test procedure must maintain required accuracy throughout the test period.
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