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Publications: Hybrid Electric Drive Systems

This page contains technical reports, fact sheets, and conference papers related to the Fleet Test and Evaluation Team’s hybrid electric drive system evaluation projects.

Delivery Vehicles

Transit Buses

Coca-Cola Delivery Trucks

Coca-Cola Refreshments Class 8 Diesel Electric Hybrid Tractor Evaluation: 13-Month Final Report
Author: Mike Lammert and Kevin Walkowicz
Type: Technical Report
Published: August 2012

Project Startup: Evaluating Coca-Cola's Class 8 Hybrid-Electric Delivery Trucks
Author: Mike Lammert
Type: Fact Sheet
Published: March 2011

FedEx Delivery Trucks

In-Use and Vehicle Dynamometer Evaluation and Comparison of Class 7 Hybrid Electric and Conventional Diesel Delivery Trucks
Authors: Jonathan Burton, Kevin Walkowicz, Petr Sindler, Adam Duran
Type: Conference Paper
Published: October 2013

Project Results: Evaluating FedEx Express Hybrid-Electric Delivery Trucks
Author: Robb Barnitt
Type: Fact Sheet
Published: April 2011

FedEx Express Gasoline Hybrid Electric Delivery Truck Evaluation: 12-Month Report
Author: Robb Barnitt
Type: Technical Report
Published: January 2011

FedEx Gasoline Hybrid Electric Delivery Truck Evaluation: 6-Month Interim Report
Author: Robb Barnitt
Type: Technical Report
Published: May 2010

United Parcel Service Delivery Vans

Eighteen-Month Final Evaluation of UPS Second-Generation Diesel Hybrid-Electric Delivery Vans
Author: Michael Lammert and Kevin Walkowicz
Type: Technical Report
Published: September 2012

Measured Laboratory and In-Use Fuel Economy Observed over Targeted Drive Cycles for Comparable Hybrid and Conventional Package Delivery Vehicles
Author: Michael Lammert, Kevin Walkowicz, Adam Duran, and Petr Sindler
Type: Conference Paper
Published: September 2012

Thirty-Six Month Evaluation of UPS Diesel Hybrid-Electric Delivery Vans
Author: Michael Lammert and Kevin Walkowicz
Type: Technical Report
Published: March 2012

Interim Project Results: United Parcel Service's Second-Generation Hybrid-Electric Delivery Vans
Author: Michael Lammert
Type: Fact Sheet
Published: January 2012

Project Overview: United Parcel Service's Second-Generation Hybrid-Electric Delivery Vans
Author: Michael Lammert
Type: Fact Sheet
Published: November 2011

United Parcel Service Evaluates Hybrid-Electric Delivery Vans
Author: Kevin Walkowicz
Type: Fact Sheet
Published: February 2010

Twelve-Month Evaluation of UPS Diesel Hybrid-Electric Delivery Vans
Author: Michael Lammert
Type: Technical Report
Published: December 2009

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Indianapolis Public Transportation/Knoxville Area Transit Buses

Case Study: Ebus Hybrid Electric Buses and Trolleys
Author: Robb Barnitt
Type: Technical Report
Published: July 2006

Propane Hybrid Electric Buses
Author: Robb Barnitt
Type: Fact Sheet
Published: April 2005

Diesel Hybrid Electric Buses
Author: Robb Barnitt
Type: Fact Sheet
Published: December 2004

King County Metro Transit Buses

King County Metro Transit Hybrid Articulated Buses: Final Evaluation Results
Authors: Kevin Chandler, Kevin Walkowicz
Type: Technical Report
Published: December 2006

King County Metro Transit: Allison Hybrid Electric Transit Bus Laboratory Testing
Authors: Robert Hayes, Aaron Williams, John Ireland, Kevin Walkowicz
Type: Technical Report
Published: September 2006

PKing County Metro Transit: Diesel Hybrid Electric Buses
Author: Leslie Eudy
Type: Fact Sheet
Published: December 2004

Long Beach Transit Buses

Long Beach Transit: Two-Year Evaluation of Gasoline-Electric Hybrid Transit Buses
Author: Mike Lammert
Type: Technical Report
Published: June 2008

New York City Transit Buses

In-Use Performance Comparison of Hybrid Electric, CNG, and Diesel Buses at New York City Transit
Author: Robb Barnitt
Type: Conference Paper
Published: June 2008

BAE/Orion Hybrid Electric Buses at New York City Transit: A Generational Comparison
Author: Robb Barnitt
Type: Technical Report
Published: March 2008

New York City Transit (NYCT) Hybrid (125 Order) and CNG Transit Buses: Final Evaluation Results
Authors: Robb Barnitt, Kevin Chandler
Type: Technical Report
Published: November 2006

New York City Transit Drives Hybrid Electric Buses into the Future
Authors: Leslie Eudy, Robb Barnitt
Type: Fact Sheet
Published: April 2005

MTA New York City Transit
Author: Leslie Eudy
Type: Fact Sheet
Published: March 2003

NYCT Diesel Hybrid Electric Buses: Final Results
Authors: Kevin Chandler, Kevin Walkowicz, Leslie Eudy
Type: Technical Report
Published: July 2002

Diesel Hybrid Electric Buses
Author: Leslie Eudy
Type: Fact Sheet
Published: September 2001

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