Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adaptive Steering Control for Steer-by-Wire Systems   Steer-by-Wire (SBW) systems are being adapted widely in semi-autonomous and
fully autonomous vehicles. The main control challenge in a SBW system is to
follow the steering commands in the face of parametric uncertainties, external
disturbances and actuator delay; crucially, perturbations in inertial
parameters and damping forces give rise to state-dependent uncertainties, which
cannot be bounded a priori by a constant. However, the state-of-the-art control
methods of SBW system rely on a priori bounded uncertainties, and thus, become
inapplicable when state-dependent dynamics become unknown. In addition,
ensuring tracking accuracy under actuator delay is always a challenging task.
This work proposes two control frameworks to overcome these challenges.
Firstly, an adaptive controller is proposed to tackle the state-dependent
uncertainties and external disturbances in a typical SBW system without any a
priori knowledge of their structures and of their bounds. The stability of the
closed-loop system is studied analytically via uniformly ultimately bounded
notion and the effectiveness of the proposed solution is verified via
simulations against the state-of-the-art solution. While this proposed
controller handles the uncertainties and external perturbations, it does not
consider the actuator delay which sometimes result in decreased accuracy.
Therefore, a new adaptive-robust control framework is devised to tackle the
same control problem of an SBW system under the influence of time-varying input
delay. In comparison to the existing strategies, the proposed framework removes
the conservative assumption of a priori bounded uncertainty and, in addition,
the Razumikhin theorem based stability analysis allows the proposed scheme to
deal with arbitrary variation in input delay. The effectiveness of the both
controllers is proved using comparative simulation studies.

8
The categories of this paper are: hep-ex
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The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
37
The categories of this paper are: supr-con