Browse Publications Technical Papers 2007-01-0297
2007-04-16

Modeling of Plug-In Series Hybrid Powertrain for USPS Carrier Route Vehicle 2007-01-0297

Postal delivery vehicles provide an excellent opportunity for using electric propulsion, since the number of miles driven daily on the delivery route is established and consistent. The vehicles also return nightly to a central depot so charging infrastructure is not an issue as long as the vehicles have sufficient charge to complete the routes. The United States Postal Service has evaluated electric vehicles for postal carrier route vehicles several times. The latest trial concluded in 2001. During the test of electric postal carrier route vehicles, the range was usually adequate for the delivery route; however there were a few instances of vehicles having to be retrieved because they had exhausted their batteries. This paper describes a series hybrid electric vehicle that addresses range issues with an on-board internal combustion engine powered generator to extend vehicle range.

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