Opportunities on Fuel Economy Utilizing V2V Based Drive Systems
Sprache des Titels:
Englisch
Original Buchtitel:
SAE World Congress
Original Kurzfassung:
It is well known that driver behavior can affect fuel
consumption to a large extent hence modifying it can lead to
reasonable reduction in the magnitude of 10 to 20%.
However, it is also known that effects of training are short
lived and therefore many authors and companies suggest the
use of monitoring systems, sometimes called eco-driver,
which allow recognizing opportunities for reduction.
V2V is an emerging technology which has been widely
studied especially for safety applications. In terms of fuel
consumption, there has also been a significant effort for
methods directed to coordinate the movement of vehicles,
especially of trucks, to improve fuel consumption by
platooning [1]. In this paper, we look at the issue from the
point of view of a single vehicle, in terms of an extension of a
standard adaptive cruise control (ACC): is it possible to
improve consumption of a vehicle traveling its own way and
having to keep safety distance to other vehicles traveling the
same route, if information on the driver intentions are
transmitted or guessed? To this end we consider the distance
between the preceding and the following car as a variable
which can be changed freely in a given, velocity dependent
range, in order to decrease the level of fuel consumption. The
whole issue can be stated as an optimization problem
including constraints to account for safety. Introducing a
moving horizon solution allows a more realistic view on the
possible benefits. For the driver it looks like a standard ACC,
albeit with a dynamic change of the distance.