400 Commonwealth Drive, Warrendale, PA 15096-0001 U.S.A. Tel: (724) 776-4841 Fax: (724) 776-5760 SAE TECHNICAL PAPER SERIES 2001-01-2774 Advanced Hybrid Electric Drive (AHED) Technology Demonstrator Jeffery S. Ernat and William G. Harris National Automotive Center, U.S. Ar my Tank-automotive and Armaments Command Tom Trzaska General Dynamics Land Systems International Truck and Bus Meeting and Exhibition Chicago, Illinois November 12-14, 2001Downloaded from SAE International by University of Michigan, Wednesday, August 01, 2018Quantity reprint rates can be obtained from the Customer Sales and Satisfaction Department. To request permission to reprint a technical paper or permission to use copyrighted SAE publications in other works, contact the SAE Publications Group. ISSN 0148-7191 Positions and opinions advanced in this paper are those of the aut hor(s) and not necessarily those of SAE. The author is solely responsible for the content of the paper. A process is available by whic h discussions will be printed with the paper if it is p ublished in SAE Transactions. For permission to publish this paper in full or in part, contact the SAE Publications Group. Persons wishing to submit papers to be c onsidered for presentation or publication thr ough SAE should send the manuscript or a 3 00 word abstract of a proposed manuscript to: Secretary, Engineering Meetings Board, SAE. Printed in USAAll SAE papers, standards, and selected books are abstracted and indexed in theGlobal Mobility DatabaseDownloaded from SAE International by University of Michigan, Wednesday, August 01, 2018 2001-01-2774 Advanced Hybrid Electric Drive (AHED) Technology Demonstrator Jeffery S. Ernat and William G. Harris National Automotive Center, U.S. Army Tank-automotive and Armaments Command Tom Trzaska General Dynamics Land Systems ABSTRACT The National Automotive Center (NAC), part of the U.S. Army’s Tank-automotive and Armaments Command (TACOM) and General Dynamics Land Systems have designed, fabricated and will demonstrate a series hybrid electric propulsion system integrated into a 20-ton Gross Vehicle Weight (GVW) 8x8 ground vehicle. The technologies of this vehicle, namely the Advanced Hybrid Electric Drive (AHE D) Technology Demonstrator, may be candidates for inclusion into the automotive platform of the Future Combat Systems (FCS) ground vehicles. This paper discusses the logist ical advantages of hybrid electric propulsion systems. It addresses fuel economy, technology maturity, platform commonality, and automotive performance as it relates to fighting, maintaining and supporting the FCS ground force. INTRODUCTION The Army’s decision to rein vent itself with FCS has provided the opportunity to open a new chapter on the propulsion of Army ground vehicles. The ground component of FCS is a two billion-dollar ($2B) program, which reconfigures Army divisions into a quickly deployable force. The intent is to insert a ground force by air transport. For the Army, this means acquiring thousands of new ground combat and combat support vehicles that are compatible with air transport, training soldiers to maintain and fight them, and planning doctrine to exploit the new paradigm. While FCS is a multi-faceted systems approach to warfighting, this paper will focus on the ground vehicles components of FCS. Fighting the enemy force will require innovation and skill on the part of the user. Al though the 20-ton vehicles do not go toe-to-toe with main bat tle tanks, they must make maximum use of intelligence, communication, mobility and terrain. They must also be fast, have exceptional acceleration (for dash speed), be highly mobile, display minimal signatures and have exceptional situational awareness. Naturally, they must be highly lethal, but they must also be quickly let hal. They must shoot first and hit. A good mobility platform will not ensure the success of an FCS Brigade. However, a good mobility platfo