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This paper deals with the problem of modeling and control for the longitudinal motion of an air-breathing hypersonic vehicle (AHV). For a highly nonlinear, dynamically-coupled simulation model of an AHV, the corresponding linearized model is first formulated for the problem of control design. Then, by using a Lyapunov approach, the existence condition for the desired controller is presented for guaranteed...
Despinning the front end of a spinning flying munition is an important step towards flight control of said vehicle. A counter-rotation control scheme is proposed to despin and stabilize the front end of the vehicle at a definable still roll position with respect to earth. Classical and Hinfin control theories are employed to construct the despin controller.
This paper considers the path tracking problem for a class of underactuated autonomous underwater vehicles (AUVs), where only surge force and stern plane are available for vehicle's 3DOF diving motion. For these torpedo-type flying vehicles, the pitch moment is proportional to the vehicle's forward speed. Therefore, if vehicle takes slow motion, then we cannot fully excite the vehicle's pitch motion...
A neuro-fuzzy adaptive control approach for nonlinear dynamical systems, which are coupled with unknown dynamics, modeling errors, and various sorts of disturbances, is proposed and used to design a wheel slip regulating controller. The implemented control structure consists of a conventional controller and a neuro-fuzzy network-based feedback controller. The former is provided both to guarantee global...
This paper presents an electric narrow tilting vehicle (NTV), which is named intelligent personal mobility (IPM). It can tilt to prevent from rollover. The tilting control strategy is also proposed and implemented by double-loop PID controller in this paper, the first loop controls the tilting rate, and the second loop which encloses the first loop controls the tilting position. This double-loop PID...
This paper first develops the six degrees of freedom (DOF) nonlinear dynamic model of near space vehicle (NSV) in re-entry trajectory and analyzes its model characteristics and aerodynamic parameters, then the linear model is obtained using trim technique. The problem of fault estimation based on adaptive fault diagnosis observer is studied, which can achieve accurate estimation of fault and give...
This paper presents the design of a neural network-based feedback linearisation (NARMA-L2) slip controller for an anti-lock braking system (ABS). The dynamics of the electro-mechanical based braking system are incorporated in the ABS model and thus a slip controller is developed to minimise the braking distance. The proposed controller is compared with an optimally-tuned PID controller. Simulation...
The control strategy of the EHB (electronic hydraulic braking) system on hardware-in-loop simulation test-platform is presented based on driver's command via brake pedal sensor. Firstly, a fuzzy logic control method is used to identify the drivers' breaking intention. Then, PID control methods are used to control the switching of the solenoid valve to regulate the wheel brake cylinder pressure. After...
The vehicle routing problem with simultaneous pickup and delivery (VRPSPD) is an extension to the classical vehicle routing problem (VRP) where customers require pickup and delivery service simultaneously. The objective of this problem is to determine the optimal set of routes to totally satisfy both the pickup and delivery. We propose a modified particle swarm optimization to solve this problem....
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