Hello.
We would like to welcome you to this course
on the electric and conventional vehicles,
given by Chalmers University of Technology in Sweden.
This is a course where you will learn
how to design electric and conventional powertrains.
You will learn how to size these powertrains to meet
different vehicle requirements and how
to model the components of the powertrains.
And you will use methods to analyze their performance.
And we, your teachers for the coming weeks,
are me, Sven Andersson, professor at combustion
and propulsion systems, and--
Anders Grauers, associate professor
on hybrid and electric vehicle systems
and powertrain specialist at the Swedish Electromobility Center.
And there will be two more teachers, David Sedarsky
and Rickard Arvidsson.
Powertrains for vehicles are developing rapidly right now.
Electric powertrains are becoming more and more used,
but also the conventional powertrain
is in a strong development right now,
not to mention electric hybrids.
There are several reasons for this.
Concerns for greenhouse gases and air quality in cities
have led to more and more stringent
emissions and fuel economy limits.
Lithium ion batteries have enabled better performance,
and the cost for batteries and electric drive components
have reduced drastically.
Also, the first generation of electric vehicles
have exceeded the expectations, and the main remaining concerns
are costs for providing long driving range and the battery
life length under harsh conditions.
In the ongoing technology transition period,
it's important not only to learn how powertrains are designed
right now but also to learn methods to compare and analyze
powertrains because the powertrains will continue
to develop for a long time to come.
So why do we include a powertrain
based on the internal combustion engine, the one we called
the conventional powertrain?
Well, since the conventional powertrain is dominating today,
it makes sense to use this as a starting point, the one
to compare with.
And then the conventional powertrain
has another set of strengths and weaknesses
then the electrical powertrain.
Therefore it's not a question of which powertrain is the best,
rather it is important to match each vehicle
type to suitable powertrain.
So to make you capable of working
with many of the interesting challenges
in developing future vehicle powertrains,
this course will deal with both electric and engine-based
powertrains with a focus on how to analyze and design them.
Most welcome to the course.