Unified Cycle definition

Unified Cycle or “UC” means the driving schedule as set forth in Part II, section E of these test procedures.

Examples of Unified Cycle in a sentence

  • With EMFAC2000 and subsequent versions, the Unified Cycle (UC) will be used for developing basic emission rates.

  • Nearly all available data on A/C effects have been collected over the Federal Test Procedure (FTP) and SC03 driving cycles, however, the Unified Cycle (UC) is more representative of current driving patterns and will be the base emissions test cycle used in EMFAC2000.

  • A total of 238 automobiles and trucks were tested over the Unified Cycle.

  • The basic approach will require the manufacturer to evaluate and document the performance of the DOR device on its specific vehicle applications using procedures based on the Unified Cycle (UC) (the UC is more representative of contemporary driving patterns in the SCAB than other test cycles).

  • Numerically, the Start Correction Factor is defined as follows: CE100 UC bag 1 (g)StCF = (6.7-1)UC bag 1 (g/mi) whereStCF=Start Correction Factor (mi per 100 sec), CE100 UC bag 1=cumulative emissions within the first 100 seconds of bag 1 of the Unified Cycle (g), UC bag 1=bag 1 emission rate of the Unified Cycle (g/mi).

  • While the FTP cycle had been historically used to represent in-use driving patterns, recent studies have instead established that the Unified Cycle (UC) represents a more contemporary account of typical driving events, including higher speeds and acceleration/deceleration rates than the FTP cycle.

  • Speed profile of the FTP driving cycle [11] The California Unified Cycle (UC) is a dynamometer driving schedule for light-duty vehicles developed by the California Air Resources Board (CARB).

  • The equations used to generate the SCFs are second order polynomials for each pollutant / technology group and are normalized to the Unified Cycle (UC) Bag 2 average speed (27.4 mph).

  • Since less fuel was burned, less engine exhaust would be produced and thus reduces the total amount of greenhouse gas emission from vehicles.The Federal Test Procedure and the Unified Cycle The Federal Test Procedure (FTP) is the primary emission certification driving cycle of light-duty vehicles in the United States.

  • This section details the PC, LDT and MDT gasoline and diesel carbon dioxide (CO2) base emission rates for the Unified Cycle (UC) and the Federal Test Procedure (FTP).

Related to Unified Cycle

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  • Combined cycle system means a system comprised of one or more combustion turbines, heat recovery steam generators, and steam turbines configured to improve overall efficiency of electricity generation or steam production.

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