NORMSERVIS s.r.o.

SAE J3039

Definition and Measurement of Power Transfer Unit Speed-Dependent Parasitic Loss

NORMA vydána dne 1.5.2025

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The information about the standard:

Designation standards: SAE J3039
Publication date standards: 1.5.2025
Country: American technical standard
Kategorie: Technické normy SAE

Annotation of standard text SAE J3039 :


This SAE Recommended Practice covers power transfer units (PTUs) used in passenger car and sport utility vehicles to support all wheel drive (AWD) operation. PTUs are typically full-time use geared devices (see 3.1). Some PTUs have additional features such as part-time on-demand capability via electronically actuated disconnect features, and other configurations are possible.

SUBFILE: Automotive
TYPE OF DOCUMENT: Ground Vehicle Standard