To measure fuel economy and emissions, vehicles are typically run on a "drive cycle", meaning a pre-defined trajectory of vehicle speed over time. The drive cycles in this support package can be imported into the Drive Cycle block of Powertrain Blockset, allowing you to easily access over 20 drive cycles that are commonly used throughout different regions of the world, including US06, HWFET, NEDC, Japanese 10-15 mode, and many others.