Description / Abstract:
The testing techniques outlined in this SAE Recommended Practice
were developed as part of an overall program for testing and
evaluating fuel consumption of heavy duty trucks and buses. The
technique outlined in this document provides a general description
of the type of equipment and facility which is necessary to
determine the power consumption of these engine-driven
components.
It is recommended that the specific operating conditions
suggested throughout the test be carefully reviewed on the basis of
actual data obtained on the specific vehicle operation.
If specific vehicle application is not known, see SAE J1343.
Purpose - The purpose of this document is to
provide a recommended test procedure for establishing the power
consumption of an air brake compressor or an air conditioning
compressor. It is intended that this test procedure be used to
determine compressor power consumption over a range of operating
conditions, including both the loaded and unloaded modes. The
resulting data is intended for use in the measure of probable
vehicle fuel consumption under operating conditions.