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Utility Factor Definitions for Plug-In Hybrid Electric Vehicles Using Travel Survey Data
- Ground Vehicle Standard
- J2841_201009
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Information Report establishes a set of “Utility Factor” (UF) curves and the method for generating these curves. The UF is used when combining test results from battery charge-depleting and charge-sustaining modes of a Plug-in Hybrid Electric Vehicle (PHEV). Although any transportation survey data set can be used, this document will define the included UF curves by using the 2001 United States Department of Transportation (DOT) “National Household Travel Survey” and a supplementary dataset.
Rationale
Describing the fuel and electrical energy usage of plug-in hybrid electric vehicles (PHEVs) is very challenging for the reason that these values vary greatly depending upon the distance traveled between charging. Detailed test procedures recommended for PHEVs are found within SAE J1711, this document serves to supply appropriate UF curves for the equations in that document that weigh the charge depleting mode operation with the charge-sustaining operation depending upon the charge-depleting mode distance measured from the test. The original issue of SAE J2841 introduced the Utility Factor based upon a mileage-based “Fleet” analysis of the US DOT National Household Transportation Survey data. This issue of SAE J2841 adds more options to the Utility Factor calculations by analyzing another data set from a Georgia Tech called the “Commute Atlanta” in order to find a vehicle-weighted analysis.
Recommended Content
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| TABLE 1 | FIELDS USED TO EXTRACT SET OF DAILY DRIVING DISTANCES FROM NHTS DATA | |
| TABLE 2 | UTILITY FACTOR EQUATION COEFFICIENTS | |
| TABLE 3 | CYCLE-SPECIFIC UF EQUATION VARIABLES | |
| TABLE 4 | CYCLE-SPECIFIC UF EQUATION VARIABLES | |
| TABLE 5 | FIT COEFFICIENTS FOR EXAMPLE CITY/HWY SPECIFIC FUF CURVES | |
| Unnamed Dataset 6 | Fleet Utility Factor (FUF) | |
| Unnamed Dataset 7 | Multi Day Individual Utility Factor (MDIUF) | |
| Unnamed Dataset 8 | ||
| Unnamed Dataset 9 | ||
| Unnamed Dataset 10 | ||
| Unnamed Dataset 11 | ||
| TABLE D1 | FLEET SPECIFIC UTILITY FACTOR CALCULATIONS | |
| TABLE D2 | INDIVIDUAL SPECIFIC UTILITY FACTOR CALCULATIONS | |
| Unnamed Dataset 14 | 55/45 City-to-Hwy Miles Ratio - City Specific Fleet Utility Curve | |
| Unnamed Dataset 15 | 55/45 City-to-Hwy Miles Ratio - Highway Specific Fleet Utility Curve | |
| Unnamed Dataset 16 | 43/57 City-to-Hwy Miles Ratio - City Specific Fleet Utility Curve | |
| Unnamed Dataset 17 | 43/57 City-to-Hwy Miles Ratio - Highway Specific Fleet Utility Curve |
Issuing Committee
The Hybrid Technical Standards Committee reports to the Powertrain Systems Group of the Motor Vehicle Council. The Committee is responsible for developing and maintaining SAE Standards, Recommended Practices, and Information Reports related to the field of hybrid vehicle technology. The following topics are within the scope of this committee's work: ¿ safety aspects of hybrid systems in vehicles ¿ test procedures to establish the performance of hybrid systems and components ¿ nomenclature ¿ vehicle interface and serviceability requirements Participants in the SAE Hybrid Technical Standards Committee include OEMs, suppliers, consulting firms, government, and other interested parties.
Reference
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