Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Design and Analysis of a Controller Using Quantitative Feedback Theory
  for a Vehicle Air Suspension System   This paper presents the design of a robust controller for a vehicle air
suspension system using Quantitative Feedback Theory (QFT). This study is
primarily focused on control of linearized active air suspension system. For
the purpose of simplicity, the dynamics of the air suspension system is modeled
using a simple 2-DOF quarter car model. Uncertain dynamic system with different
working condition has been considered for the vehicle air suspension system.

16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex