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SAE J2985 2014 Edition, February 1, 2014
Definition and Measurement of Transfer Case Speed-Dependent Parasitic Loss
Description / Abstract:
This SAE Recommended Practice covers transfer cases used in
passenger car and light truck applications. Transfer cases are of
the chain, geared, manually and electronically shifted types
although other configurations are possible. The operating points
(speeds, temperatures, etc.) were chosen to mirror those of the
United States Environmental Protection Agency Vehicle Chassis
Dynamometer Driving Schedules (DDS).
Purpose
To provide a common means to consistently measure and quantify the speed-dependent parasitic loss ("spin loss") characteristics of transfer cases.
Purpose
To provide a common means to consistently measure and quantify the speed-dependent parasitic loss ("spin loss") characteristics of transfer cases.
SAE J2985 2014 Edition, February 1, 2014
Definition and Measurement of Transfer Case Speed-Dependent Parasitic Loss