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Computer simulation for safety

21/5/2021

 
CMC work shared by increasing number of members
Several companies, universities and associations have decided to continue
contribution to CMC ‘Next’. Ducati is now the seventh motorcycle manufacturer to
support the consortium as Regular Member. Also academia and associations
confirmed their continuous membership, such as ACEM, FIM, IKA University
Aachen, Technische Hochschule Ingolstadt, Würzburg Institute for Traffic Sciences
GmbH and VUFO GmbH.
New: Computer simulation of motorcycle accidents
The first work projects for 2021 have been started. VUFO GmbH is currently
scrutinizing the most frequent accident scenarios. Intersection collisions are the
predominant scenario, where usually the car driver does not see or perceive the
oncoming motorcycle. So these key scenarios are investigated more deeply now.
The GIDAS database provides the basis for the study. Among the databases on
accidents that are available worldwide, this German database is one of the most
detailed ones available. Not only does it include the basic items like the scenario,
impact, speed, etcetera, but there are also descriptions to understand the situation,
which are acquired through interviews. "As basis for our application definitions this
is very useful.” says Masaru Mamiya (Suzuki), Leader of the Accidentology Expert
Team. “Of course, we know this is based on German accidents only and we will
have to check differences with other countries or regions too.”
These detailed reconstructed accidents are analysed with a special software to
better understand their dynamic, trajectory, speed, etc. in detail. With this
methodology we could generate use cases for a testing environment. In a later
step it is planned to make different variations to answer several important
questions. For example: what would have happened if participants braked earlier?
Can we compare different trajectories of the same accident?
The purpose of this is to find common denominators in these different scenarios
and simulation that can help our technical teams to consider possible solutions.
These solutions may include the sender (motorcycle) side, for example by means of
improved positioning accuracy or path prediction; and also the receiver (usually
car) side, for example by improved warning strategies.
Picture
Most collisions happen between cars and motorcycles. However, during the summer season, tractors bear risks to motorcycle riders as well.
Difference between car and motorcycle scenarios
“We need to understand in detail what is going on during collisions. Speeds,
trajectories, vehicle movements and so on, will help us to define better
requirements for safety applications”, says Yasuhiro Okada (Honda), Leader of the
Applications Requirement Expert Team.
CMC is often asked where the ‘technical’ difference lies between accidents where
motorcycles are involved compared to accidents between cars only. Therefore
particular attention is paid to the difference of motorcycle collisions compared to
car-only collisions. For example, it may happen that the impact speed at accidents
between cars and motorcycles is relatively high because the car driver had not
seen the motorcycle and did not apply any braking at all. In that case, an
application based on car-only accident studies may have less-than-ideal
parameters to address accidents with motorcycles involved.
CMC expects the first results of the computer analysis by the middle of this year.
Then our expert teams will follow up with their work on technical solutions in order
to improve applications that may help to avoid accidents.

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  • Home
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  • Basic Specification
    • Overview
    • Assessment
    • Use Case Specification
    • Application Specification
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    • Other standards
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  • Research
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    • Rider Reaction Time
  • News
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