Traction Control for a PM Axial-Flux In-Wheel Motor
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Abstract
The traction control is a tool to increase stability and safety of vehicles and it has a greater performance potential
in electrical vehicles than in ICV. Moreover, the traction control allows the EV to operate more efficiently preventing
slippage in acceleration and permitting the use of high-efficiency low-drag tires. The presented approach can compete with
the well-established techniques, but it offers a lighter tuning procedure. This paper presents an approach to the longitudinal
control of a single wheel adopting a configuration based on an adherence estimator and a controller of the adherence
gradient. The presented approach allows tracking of the value of the adherence derivative in a wide operating range without
any knowledge of the road conditions. The work is based mainly on experimental tests. The test rig computes the vehicle
dynamics in real-time and loads accordingly the drive under test. The controller was experimentally verified showing good
behavior.
in electrical vehicles than in ICV. Moreover, the traction control allows the EV to operate more efficiently preventing
slippage in acceleration and permitting the use of high-efficiency low-drag tires. The presented approach can compete with
the well-established techniques, but it offers a lighter tuning procedure. This paper presents an approach to the longitudinal
control of a single wheel adopting a configuration based on an adherence estimator and a controller of the adherence
gradient. The presented approach allows tracking of the value of the adherence derivative in a wide operating range without
any knowledge of the road conditions. The work is based mainly on experimental tests. The test rig computes the vehicle
dynamics in real-time and loads accordingly the drive under test. The controller was experimentally verified showing good
behavior.