J2985_201907 Definition and Measurement of Transfer Case Speed-Dependent Parasitic Loss
Reaffirmed
07/17/2019
- Features
- Issuing Committee
- Content
- 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).
- Content
- New government regulations that raise automotive fuel economy requirements and change the methods by which vehicle level fuel economy is measured drive the need for improved methods to measure component level parasitic loss. The intent of this standard is to provide the means to generate consistent component level parasitic loss data in support of modeling and analysis of vehicle-level emissions and fuel economy.
- Pages
- 1
- Citation
- SAE International Recommended Practice, Definition and Measurement of Transfer Case Speed-Dependent Parasitic Loss, SAE Standard J2985_201907, Reaffirmed July 2019, Issued February 2014, https://doi.org/10.4271/J2985_201907.