2018-19 Graduate Fellows

Erica Eggleton

King County Metro’s maintenance protocol for their hybrid electric bus fleet is currently ineffective due to unpredictable battery service requirements. My research seeks to develop a battery and vehicle model, that utilizes geographic information system (GIS) data to predict the state of health of lithium-ion battery packs. Predicative maintenance will rely on parameters such as road grade, stop-start frequency, velocity, acceleration, date, and weather conditions. My goal this year is to develop a model that links cumulative cycling behavior to the battery’s state of health and necessary maintenance requirements. I use GIS data and ArcMap to visualize the spatial parameters and will use Python to develop the model and analyze data in real time. A physics-based diagnostic model combined with geospatial information will lower the operating and maintenance cost of hybrid buses and allow for better route planning.

Advisor: Daniel Schwartz – Chemical Engineering

“Providing clean energy to the inhabitants of our planet is a major challenge to future generations. The University of Washington is to be congratulated for establishing an Institute where faculty and students can work together to tackle the difficult global challenge of energy sustainability.”
– Mildred Dresselhaus, Professor of Physics and Electrical Engineering, Emerita and Institute Professor, Massachusetts Institute of Technology
“Energy competition is opening up in a variety of ways, the push for carbon control will continue, and the rate of technology advancement is exponential. All the things I’ve seen at the CEI are just perfect for the way we see things going in energy. You guys are at the cutting edge. We’re counting on you.”
– Ronald Litzinger, President, Edison Energy