Driveshaft Spin Loss and Efficiency Measurement
J3249
This document will detail the standard method for measuring the reporting the spin loss and efficiency of driveshafts (halfshafts and propeller shafts).
Rationale: The increased emphasis on efficiency of vehicles is creating requests from motor vehicle makers to report efficiency of drivetrain components. This standard is proposed to set the technical specifications for determining and reporting the spin losses and efficiency of driveshafts as an industry standard.
