US: Heavy-duty: WVU 5-Peak

This cycle was developed in 1994 by the Vehicle Emissions Testing Laboratory at West Virginia University. The WVU 5-Peak cycle (or Truck cycle) was designed for general truck chassis testing. The cycle consists of five segments, each with an acceleration to a peak speed, followed by a brief steady state operation and then a deceleration back to idle. The five peak speeds are 20, 25, 30, 35, and 40 mph, respectively.

WVU 5-Peak

The following are characteristic parameters of the cycle:
 * Duration: 900 s
 * Driving distance: 5 mile

A modification of the above cycle existed, known as the &#8220;WVU 5-Miles Route&#8221;. In the modified cycle, the vehicle accelerated to each steady speed using the highest possible acceleration. The driving distance, time, and steady state speeds were the same on both cycles.