[Fwd: Seminar - Hybrid versus Fuel Cell Vehicles]
Katherine Strojny
Subject: Seminar - Hybrid versus Fuel Cell Vehicles
From: "Leonard Bohmann" <ljbo...@mtu.edu>
Date: Wed, February 22, 2006 9:32 am
To: ece...@mtu.edu
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A clarification - TOMORROW, Thursday, Feb 23 @ 1pm in DOW 641
Sorry for the confusion
LJ Bohmann
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Mr. Sheldon Williamson from Illinois Institute of Technology, will be
giving the talk entitled "Comparative Assessment of Modern Vehicular Power
Systems Based on Comprehensive Well-to-Wheels Analysis" It is at 1:00pm
in DOW 641
Refreshments will be served
Hope to see you there
Abstract:
In recent years, the automotive industry has seriously started to look
upon hybrid electric vehicles (HEV) and fuel cell vehicles (FCV) as
prospective advanced vehicular solutions to satisfy future market demands
for higher fuel economy, lower emissions, and higher performance. In this
regard, there have been several comparisons made in the recent past
between the various topologies of these two popularly proposed automotive
technologies. One of the major issues surrounding the research and
development work involving these advanced vehicles is their overall
well-to-wheels (WTW) analysis. The major idea behind such a comprehensive
WTW analysis is to present an overall comparison between HEVs and FCVs
from the point of view of efficiency (of converting the input fuel into
actual work at the wheels of the vehicle), fuel economy for city and
highway driving conditions (in miles per gallon), greenhouse gas (GHG)
emissions (in grams/mile), and performance parameters such as
acceleration and energy consumption. The WTW efficiency comparison for
HEVs and FCVs is the analysis of their respective well-to-tank (WTT) and
tank-to-wheels (TTW) values, the product of which reveals the final
well-to-wheels value.
This presentation primarily aims at presenting critical comparative issues
with regards to overall efficiencies, fuel economies, performance
parameters, and GHG emissions of modern vehicles including HEVs and FCVs.
Based on the comparative simulations and analytical studies conducted in
this research, HEVs are proven to be a much more commercially viable
option compared to FCVs. In addition, the research studies also reveal
major market penetration barriers for battery electric vehicles (BEVs)
and FCVs. As part of development work, the practical implementation of a
parallel HEV kit for a heavy-duty diesel transit bus will be explained.
The detailed design and selection criteria of various electric drive
train components will be summarized. Furthermore, the developed parallel
hybrid control strategy, which is currently at the testing stage, will
also be explained.
One of the most important objectives of this research, apart from the
above-mentioned goals, involves the formulation of a generalized
efficiency modeling procedure for critical electric drive train
components (traction motors and power electronic converters) for HEV
propulsion applications. Such a detailed component-level efficiency
analysis would prove to be a strong tool in evaluating the electric drive
train behavior over time, for various driving (load) patterns. Finally,
the projected automotive technology trends that can be expected for
commercial applications can be summarized based on the comprehensive
comparative evaluations.