SC03

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EPA SC03 supplemental driving cycle Consommation Sc03.png
EPA SC03 supplemental driving cycle

The SC03 is a driving cycle used to measure vehicle emissions associated with air conditioning usage. It is used by the US Environmental Protection Agency (EPA) to measure tailpipe emissions and fuel economy of passenger cars on a vehicle dynamometer. [1]

Contents

The SC03 is part of the "Supplemental Federal Test Procedure" (SFTP), which was developed to test driving conditions beyond those encountered in the standard highway (HWFET) and city (FTP-75) driving cycles. [2] In 2008, the EPA added the US06 and SC03 supplemental tests, as well as a cold FTP-75, to the original city and highway tests for determination of vehicle fuel economy. [3]

Description

The SC03 lasting 9.9 minutes and covers 3.6-mile (5.8 km). The cycle averages 22 mph (35 km/h) with a maximum speed of 54.8 mph (88.2 km/h). Five stops are included, idling occurs 19 percent of the time and acceleration of 5.1 mph/sec is achieved. Engine temperatures begin warm. [4]

During the SC03 air conditioning test, the ambient temperature is raised to 95 °F (35 °C), and the vehicle's climate control system set to cool the passenger compartment.

See also

References

  1. ↑ "Dynamometer Drive Schedules". July 3, 2025. Retrieved March 1, 2026.
  2. ↑ "Emission Test Cycles: FTP-72 (UDDS)" . Retrieved March 1, 2026.
  3. ↑ "Earthcars: EPA fuel economy ratings – what's coming in 2008" . Retrieved March 1, 2026.
  4. ↑ "SFTP-SC03". Dieselnet. Retrieved March 1, 2026.
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