The data logger drive and duty cycle analysis program collects operating metrics and provides fleet and industry information on how vehicles operate in varying environments. The analysis program allows for benchmarking against other options and technologies available in today’s market. This groundbreaking opportunity is available at no cost (except for the return shipping cost of the data loggers) to all Green Truck Association (GTA) fleet members.
This vehicle overview report reveals nine measured results.
Drive and Duty Cycle
Often used interchangeably, these terms measure specific metrics.
A drive cycle measures and defines how a vehicle operates using:
- average speed
- maximum speed
- idle time
- power export time (PTO)
- continuous running time per cycle
A duty cycle defines how a vehicle is used measuring:
- hours of use per day
- days of use per week
- total miles driven per measurement cycle
- percentage of on-road vs off-road
- loaded vs empty usage
Daily summaries are captured continuously in this running report.
GTA makes it possible for fleets to collect and analyze vehicle data and to make data-driven business decisions. Data will be submitted to the National Renewal Energy Laboratory’s (NREL) database for inclusion and analysis.
Participating in GTA’s data logger drive and duty cycle analysis program involves:
- identifying the vehicle(s) to be used for data collection
- installing data logger(s) on participating vehicle(s)
- operating vehicle(s) for approximately four weeks
- removing and returning the data logger(s)
To participate, fill out a brief application form.
You’ll receive individualized reports focusing closely on specific vehicle performance and comparisons — including daily mileage breakdowns, idling time, performance (driving speeds, acceleration rates, stops per mile) and representative chassis test cycles. Additionally, you will receive benchmark information for how your vehicles operate compared to others vehicle classes.
A driver’s score is a general indicator of the eco-driving behavior during a drive cycle. Using drivers’ scores to engage vehicle operators can reduce operating costs in terms of fuel savings and wear and tear on vehicle components such as engines, transmissions and brakes. Responsible driving habits reduce risky driver behavior, mitigating overall risk for fleets. Fleet managers can use this real-world feedback when training operators to improve driving habits.
GTA is a supporter of NREL’s Fleet DNA program — a warehouse of operating data that helps vehicle manufacturers and developers optimize vehicle design. It also assists fleet managers with choosing the correct and most advanced fleet technologies. The Fleet DNA’s vision is to provide data summaries and visualizations similar to real-world “genetics” or DNA of medium- and heavy-duty fleets operating in a variety of vocations.
GTA — an NTEA Affiliate Division — strongly encourages fleet participation in this program. Data from drive and duty cycles is crucial when governing authorities are creating new regulations. Participation in this program could be critical to how federal regulations are developed.
All data collected is aggregated into anonymous vehicle category reports, and datasets are housed on the Fleet DNA website. These are publicly accessible and useful for individuals interested in better understanding the typical usage of the wide range of vehicle types and vocations in the medium- and heavy-duty vehicle segments.
Questions can be directed to:
Chris Lyon, NTEA director of fleet relations, or call 248-479-8196
George Survant, NTEA senior director of fleet relations, or call 248-479-8191