The Challenges of Developing an Energy, Emissions, and Fuel Economy Test Procedure for Heavy-Duty Hybrid Electric Transit Vehicles Southwest Research Institute

Format:

Book

Conference/Event

Author/Creator:

Bass, Edward A., author.

Conference Name:

International Truck and Bus Meeting & Exposition (1995-11-13 : Winston-Salem, North Carolina, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 1995

Summary:

Over twenty prototype hybrid buses and other commercial vehicles are currently being completed and deployed. These vehicles are primarily "series" hybrid vehicles which use electric motors for primary traction while internal combustion engines, or high-speed turbine engines connected to generators, supply some portion of the electric propulsion and battery recharge energy. Hybrid-electric vehicles have an electric energy storage system on board that influences the operation of the heat engine. The storage system design and level affect the vehicle emissions, electricity consumption, and fuel economy.Existing heavy-duty emissions test procedures require that the engine be tested over a transient cycle before it can be used in vehicles (over 26,000 lbs GVW). This paper describes current test procedures for assessing engine and vehicle emissions, and proposes techniques for evaluating engines used with hybrid-electric vehicle propulsion systems. Hybrid systems, series and parallel, may require unique test procedures to allow the emissions and fuel consumption results to be properly compared to existing and future engine emission standards

Notes:

Vendor supplied data

Publisher Number:

952610

Access Restriction:

Restricted for use by site license