Exhaust Emission Characteristics of Hybrid Heat Engine/Electric Vehicles

710825

02/01/1971

Event
National Truck, Powerplant, Fuels and Lubricants Meeting
Authors Abstract
Content
As part of a study to ascertain the feasibility of hybrid heat engine/electric automotive vehicles, exhaust emissions were calculated to determine both the state-of-the-art and the potential emission capability of vehicles incorporating the battery/heat engine powerplant. Vehicle emissions were determined for four vehicle classes: full-size family car, small commuter car, delivery/postal van, and the city bus. Specific mass emission data (in terms of gm/bhp-hr) were gathered for the spark ignition, diesel, gas turbine, Rankine cycle, and the Stirling cycle engines. Data inputs required the determination of steady-state mass emission data at rated-load as well as part-load operating conditions. These data were utilized to calculate the exhaust emission characteristics of the passenger car and commuter car driving over the Federal LA-4 driving cycle. Emission data for the delivery van and city bus were calculated over an arbitrarily selected driving cycle. The results indicate that marked reductions in emissions can be obtained with the spark ignition engine operating at lean air-fuel ratios, which is permitted by the steady-state operation characteristic of the hybrid. For the future, the gas turbine shows promise of further emission reductions, and the diesel engine shows promise in certain areas.
Meta TagsDetails
DOI
https://doi.org/10.4271/710825
Pages
14
Citation
Hinton, M., Iura, T., Roessler, W., and Sampson, H., "Exhaust Emission Characteristics of Hybrid Heat Engine/Electric Vehicles," SAE Technical Paper 710825, 1971, https://doi.org/10.4271/710825.
Additional Details
Publisher
Published
Feb 1, 1971
Product Code
710825
Content Type
Technical Paper
Language
English