Energies,
Journal Year:
2023,
Volume and Issue:
16(8), P. 3490 - 3490
Published: April 17, 2023
Autonomous
vehicles
in
highway
driving
scenarios
are
expected
to
become
a
reality
the
next
few
years.
Decision-making
and
motion
planning
algorithms,
which
allow
autonomous
predict
tackle
unpredictable
road
traffic
situations,
play
crucial
role.
Indeed,
finding
optimal
decision
all
different
is
challenging
task
due
large
complex
variability
of
scenarios.
In
this
context,
aim
work
design
an
effective
hybrid
two-layer
path
architecture
that,
by
exploiting
powerful
tools
offered
emerging
Deep
Reinforcement
Learning
(DRL)
combination
with
model-based
approaches,
lets
properly
behave
conditions
and,
accordingly,
determine
lateral
longitudinal
control
commands.
Specifically,
DRL-based
high-level
planner
responsible
for
training
vehicle
choose
tactical
behaviors
according
surrounding
environment,
while
low-level
converts
these
choices
into
actions
be
imposed
through
optimization
problem
based
on
Nonlinear
Model
Predictive
Control
(NMPC)
approach,
thus
enforcing
continuous
constraints.
The
effectiveness
proposed
hierarchical
hence
evaluated
via
integrated
vehicular
platform
that
combines
MATLAB
environment
SUMO
(Simulation
Urban
MObility)
simulator.
exhaustive
simulation
analysis,
carried
out
non-trivial
scenarios,
confirms
capability
strategy
IEEE Transactions on Intelligent Transportation Systems,
Journal Year:
2023,
Volume and Issue:
25(2), P. 2034 - 2045
Published: Sept. 27, 2023
Accurate
recognition
of
driver
distraction
is
significant
for
the
design
human-machine
cooperation
driving
systems.
Existing
studies
mainly
focus
on
classifying
varied
distracted
behaviors,
which
depend
heavily
scale
and
quality
datasets
only
detect
discrete
categories.
Therefore,
most
data-driven
approaches
have
limited
capability
recognizing
unseen
activities
cannot
provide
a
reasonable
solution
downstream
applications.
To
address
these
challenges,
this
paper
develops
vision
Transformer-enabled
weakly
supervised
contrastive
(W-SupCon)
learning
framework,
in
behaviors
are
quantified
by
calculating
their
distances
from
normal
representation
set.
The
Gaussian
mixed
model
(GMM)
employed
clustering,
centralizes
distribution
set
to
better
identify
behaviors.
A
novel
behavior
dataset
other
three
ones
evaluation,
experimental
results
demonstrate
that
our
proposed
approach
has
more
accurate
robust
performance
than
existing
methods
unknown
activities.
Furthermore,
rationality
levels
different
evaluated
through
skeleton
poses.
constructed
demo
videos
available
at
https://yanghh.io/Driver-Distraction-Quantification
.
SAE International journal of vehicle dynamics, stability, and NVH,
Journal Year:
2024,
Volume and Issue:
8(1)
Published: Jan. 4, 2024
<div>To
address
the
challenge
of
directly
measuring
essential
dynamic
parameters
vehicles,
this
article
introduces
a
multi-source
information
fusion
estimation
method.
Using
intelligent
front
camera
(IFC)
sensor
to
analyze
lane
line
polynomial
and
kinematic
model,
vehicle’s
lateral
velocity
sideslip
angle
can
be
determined
without
extra
expenses.
After
evaluating
strengths
weaknesses
two
aforementioned
techniques,
approach
for
is
proposed.
This
extracts
characteristics
calculate
allocation
coefficient.
Subsequently,
outcomes
from
techniques
are
merged,
ensuring
rapid
convergence
under
steady-state
conditions
precise
tracking
in
scenarios.
In
addition,
we
introduce
tire
parameter
online
adaptive
module
(TPOAM)
continually
update
such
as
cornering
stiffnesses,
with
its
effectiveness
demonstrated
through
DLC
slalom
simulation
tests.
dual
extended
Kalman
filter
(DEKF)
observer,
allows
joint
vehicle
states
parameters.
Ultimately,
offer
cost-effective
method
vital
support
motion
control
autonomous
driving.</div>
Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 26, 2024
Maintaining
both
path-tracking
accuracy
and
yaw
stability
of
distributed
drive
electric
vehicles
(DDEVs)
under
various
driving
conditions
presents
a
significant
challenge
in
the
field
vehicle
control.
To
address
this
limitation,
coordinated
control
strategy
that
integrates
adaptive
model
predictive
(AMPC)
direct
moment
(DYC)
is
proposed
for
DDEVs.
The
strategy,
inspired
by
hierarchical
framework,
upper
layer
lower
Based
on
linear
time-varying
(LTV
MPC)
algorithm,
effects
prediction
horizon
weight
coefficients
are
compared
analyzed
first.
According
to
aforementioned
analysis,
an
AMPC
controller
with
variable
designed
considering
change
speed
layer.
involves
DYC
based
quadratic
regulator
(LQR)
technique.
Specifically,
intervention
rule
determined
threshold
rate
error
phase
diagram
sideslip
angle.
Extensive
simulation
experiments
conducted
evaluate
different
conditions.
results
show
that,
low
adhesion
conditions,
have
been
improved
21.58%
14.43%,
respectively,
AMPC.
Similarly,
high
44.30%
14.25%,
coordination
LTV
MPC
DYC.
indicate
effective
across
speeds.
Furthermore,
successfully
enhances
while
maintaining
good
even
extreme
IEEE Transactions on Intelligent Vehicles,
Journal Year:
2023,
Volume and Issue:
9(1), P. 958 - 969
Published: Aug. 31, 2023
Bird's
eye
view
(BEV)
perception
is
becoming
increasingly
important
in
the
field
of
autonomous
driving.
It
uses
multi-view
camera
data
to
learn
a
transformer
model
that
directly
projects
road
environment
onto
BEV
perspective.
However,
training
often
requires
large
amount
data,
and
as
for
traffic
are
private,
they
typically
not
shared.
Federated
learning
offers
solution
enables
clients
collaborate
train
models
without
exchanging
but
parameters.
In
this
paper,
we
introduce
FedBEVT,
federated
approach
perception.
order
address
two
common
heterogeneity
issues
FedBEVT:
(i)
diverse
sensor
poses,
(ii)
varying
numbers
systems,
propose
approaches
-
Learning
with
Camera-Attentive
Personalization
(FedCaP)
Adaptive
Multi-Camera
Masking
(AMCM),
respectively.
To
evaluate
our
method
real-world
settings,
create
dataset
consisting
four
typical
use
cases.
Our
findings
suggest
FedBEVT
outperforms
baseline
all
cases,
demonstrating
potential
improving
Annual Reviews in Control,
Journal Year:
2023,
Volume and Issue:
57, P. 100910 - 100910
Published: Nov. 3, 2023
The
selection
of
an
appropriate
control
strategy
is
essential
for
ensuring
safe
operation
in
autonomous
driving.
While
numerous
strategies
have
been
developed
specific
driving
scenarios,
a
comprehensive
comparative
assessment
their
performance
using
the
same
tuning
methodology
lacking
literature.
This
paper
addresses
this
gap
by
presenting
systematic
evaluation
state-of-the-art
model-free
and
model-based
strategies.
objective
to
evaluate
contrast
these
controllers
across
wide
range
reflecting
diverse
needs
vehicles.
To
facilitate
analysis,
set
metrics
selected,
encompassing
accuracy,
robustness,
comfort.
contributions
research
include
design
methodology,
use
two
novel
stability
comfort
comparisons
through
extensive
simulations
real
tests
experimental
instrumented
vehicle
over
trajectories.
IEEE Sensors Journal,
Journal Year:
2023,
Volume and Issue:
23(20), P. 25061 - 25074
Published: Sept. 11, 2023
In
this
paper,
we
present
secure
cooperative
localization
for
connected
automated
vehicles
(CAVs)
based
on
consensus
estimation
through
leveraging
shared
but
possibly
attacked
sensory
information
from
multiple
adjacent
vehicles.
First,
the
communication
topology
between
CAVs,
node
kinematic
model,
and
measurement
model
each
vehicle
are
introduced.
Then,
a
Kalman
filter
(CKIF)
is
applied
to
fuse
Since
might
be
attacked,
an
attack
detection
algorithm
general
likelihood
ratio
test
(GLRT)
adopted.
A
delay-prediction
framework
proposed
maintain
accuracy
real-time
performance
of
algorithm.
Next,
rule-based
isolation
method
used
defend
attack.
Finally,
validated
in
extensive
numerical
simulation
experiments.
The
results
confirm
that
manner
leads
better
resilience
under
attacks.