This paper presents the modeling, control and simulation
of an electric vehicle with four in-wheel 15 kw induction
motors drive 4WDEV controlled by a direct torque control
DTC strategy, where two control techniques are presented
and compared for controlling the electric vehicle
speed: the first one is based on a classical PI controller
while the second one is based on a fuzzy logic controller
(FLC). The aim is to evaluate the impact of the proposed
FLC controller on the efficiency of the 4WDEV taking into
account vehicle dynamics performances, autonomy and
battery power consumption. When the classical controller
can’t ensure the electric vehicle stability in several
road topology situations. To show the efficiency of the
proposed new control technique on the traction system
by 4WDEV. The vehicle has been tested in different road
constraints: straight road, sloping road and curved road
to the right and left using the Matlab / Simulink environment.
The analysis and comparison of the simulation
results of FLC and PI controllers clearly show that the FLC
ensures better performances and gives a good response
without overshoot, zero steady state error and high load
robustness rejection, compared to the PI controller which
is present an overshoot equal 7.3980% and a rise time
quite important (0.2157 s with PI controller and 0.1153 s
with FLC). As well as the vehicle range has been increased
by about 10.82 m throughout the driving cycle and that
the energy consumption of the battery has been reduced
by about 1.17% with FLC.
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