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MOVES and Related Models

EPA Nonregulatory Nonroad Duty Cycles

This page has three kinds of files:

  1. Individual Activity Cycles and Charts  – Data collected in the field.
  2. Process Notes for the Proposed Transient PM (Particulate Matter) Test Cycle - Files addressing various processes designed to convert engine operating data to consistent torque and time measurements. The Cycle is comprised of elements of the individual nonregulatory duty cycles from the following nonroad equipment:
    • agricultural tractor
    • backhoe loader
    • crawler dozer
    • excavator
    • arc welder
    • skid-steer loader
    • rubber-tire loader
  3. EPA’s proposed draft Nonroad Transient PM Duty Cycle - steps in its development are shown in the Excel workbook in its section at the bottom of the page.

Individual Cycles Data and Charts:

Cycle Type File Name Charts
Agricultural Tractor Agricultural Tractor Cycle (TXT)(18 K) Agricultural Tractor Cycle in graphClick me to see the enlarged image.
Backhoe Loader Backhoe Loader Cycle (TXT)(17 K) Backhoe Loader Cycle in graphClick me to see the enlarged image.
Crawler-Dozer or Crawler Tractor Crawler Tractor Cycle (TXT)(24 K) Crawler Tractor Cycle in graphClick me to see the enlarged image.
 Excavator Excavator Cycle (TXT)(35 K) Excavator Cycle in graphClick me to see the enlarged image.

Arc Welder 

Arc Welder Typical Operation 1 (TXT)(35 K) Arc Welder Typical Operation 1 in graphClick me to see the enlarged image.
Arc Welder  Arc Welder Typical Operation 2 (TXT)(49 K) Arc Welder Typical Operation 2 in graphClick me to see the enlarged image.

Arc Welder 

Arc Welder High Speed Transient Operation (TXT)(35 K) Arc Welder High Speed Transient Operation in graphClick me to see the enlarged image.
Arc Welder  Arc Welder High Torque Transient Operation (TXT)(13 K) Arc Welder High Torque Transient Operation in graphClick me to see the enlarged image.

Skid Steer Loader 

Skid Steer Loader Typical Operation 1 (TXT)(35 K) Skid Steer Loader Typical Operation 1 in graphClick me to see the enlarged image.
Skid Steer Loader  Skid Steer Loader Typical Operation 2 (TXT)(35 K) Skid Steer Loader Typical Operation 2 in graphClick me to see the enlarged image.
Skid Steer Loader  Skid Steer Loader High Speed Transient Operation (TXT)(35 K) Skid Steer Loader High Speed Transient Operation in graphClick me to see the enlarged image.
Skid Steer Loader  Skid Steer Loader High Torque Transient Operation (TXT)(33 K) Skid Steer Loader High Torque Transient Operation in graphClick me to see the enlarged image.

Wheeled, or Rubber-Tire, Loader 

Wheel Loader Typical Operation (TXT)(35 K) Wheel Loader Typical Operation in graphClick me to see the enlarged image.
Wheeled, or Rubber-Tired, Loader  Wheel Loader Typical Operation 2 (TXT)(35 K) Wheel Loader Typical Operation 2 in graphClick me to see the enlarged image.
Wheeled, or Rubber-Tired, Loader  Wheel Loader High Speed Transient Operation (TXT)(35 K) Wheel Loader High Speed Transient Operation in graphClick me to see the enlarged image.
Wheeled, or Rubber-Tired, Loader  Wheel Loader High Torque Transient Operation (TXT)(33 K) Wheel Loader High Torque Transient Operation in graphClick me to see the enlarged image.

Engine Speed and Torque vs Time (Normalized 0 = idle; 100 = rated/governed central speed/torque) 

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Process Notes for the Proposed Transient PM (particulate matter) Test Cycle

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EPA’s draft Nonroad Transient PM duty cycle

The Excel workbook listed below shows iterations of the duty cycle in the development of the proposed draft of the  Nonroad Transient PM Duty Cycle.

Excel 5.0 Workbook (Excel)(2 MB)  | | Excel 5.0 Workbook in PDF format, please see the bottom of this page.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.