Proceedings of the American Control Conference
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Intelligent landing control using linearized inverse aircraft model
Proceedings of the American Control Conference - Tập 4 - Trang 3269-3274 vol.4 - 2002
Neural network applications to aircraft automatic landing control based on linearized inverse aircraft model are presented. Conventional automatic landing systems can provide a smooth landing which is essential to the comfort of passengers. However, these systems work only within a specified operational safety envelope. When the conditions are beyond the envelope, such as turbulence or wind shear,...... hiện toàn bộ
#Intelligent control #Aircraft #Aerospace control #Inverse problems #Automatic control #Neural networks #Safety #Intelligent systems #Intelligent networks #Robustness
Receding horizon control of autonomous aerial vehicles
Proceedings of the American Control Conference - Tập 5 - Trang 3741-3746 vol.5 - 2002
This paper presents a new approach to trajectory optimization for autonomous fixed-wing aerial vehicles performing large-scale maneuvers. The main result is a planner which designs nearly minimum time planar trajectories to a goal, constrained by no-fly zones and the vehicle's maximum speed and turning rate. Mixed-Integer Linear Programming (MILP) is used for the optimization, and is well suited t...... hiện toàn bộ
#Remotely operated vehicles #Mobile robots #Constraint optimization #Large-scale systems #Turning #Linear programming #Aircraft #Dynamic programming #Vehicle dynamics #Feedback
ACC/CACC-control design, stability and robust performance
Proceedings of the American Control Conference - Tập 6 - Trang 4327-4332 vol.6 - 2002
Variable headway Adaptive Cruise Control (ACC) and Cooperative Adaptive Cruise Control (CACC) based on a sliding mode method are considered in a unified model-based approach. An analysis of robust stability and performance for the closed-loop systems corresponding to different implementations has been carried out. Explicit relationships between distance headway and control design parameters and pr...... hiện toàn bộ
#Robust stability #Control design #Robust control #Vehicles #Communication system control #Acceleration #Automatic control #Velocity measurement #Programmable control #Adaptive control
From stoichiometry to ultra lean burn in a direct injection spark ignition engine model
Proceedings of the American Control Conference - Tập 4 - Trang 3123-3128 vol.4 - 2002
In an internal combustion engine, whenever complete combustion can be achieved, indicated torque production is directly related to fuel rate. This premise is exploited to extrapolate a public-domain, homogeneous charge, spark ignition engine model to the stratified charge regime. The extrapolation is based on published, functional forms for indicated torque and friction torque in a direct-injectio...... hiện toàn bộ
#Sparks #Ignition #Torque #Internal combustion engines #Timing #Fuel economy #Vehicle dynamics #Predictive models #Production #Extrapolation
Less conservative performance bounds with the LMI method for a class of semi-active control problems with nonlinear actuator dynamics
Proceedings of the American Control Conference - Tập 1 - Trang 622-627 vol.1
The problem of establishing less conservative performance bounds relative to a classical technique is investigated for a class of semi-active control problems with nonlinear actuator dynamics and discontinuous feedback control. The performance problem is formulated as a linear matrix inequality problem and it is shown by way of a 3D example that this approach provides several orders of magnitude p...... hiện toàn bộ
#Valves #Control systems #Vehicle dynamics #Aerodynamics #Buildings #Nonlinear dynamical systems #Hydraulic actuators #Linear systems #Power system protection #Aerospace control
Accurate local vehicle dead-reckoning for a parking assistance system
Proceedings of the American Control Conference - Tập 5 - Trang 4297-4302 vol.5 - 2002
Investigates the possibility of computing position estimates for passenger cars based only on signals available in a production car. Two new dead reckoning approaches are compared to the well known rear axle based algorithm. One method combines the wheel revolution data calculated on the basis of raw ABS-signal measurements with the steering angle measurement. The other model based algorithm compu...... hiện toàn bộ
#Vehicles #Signal processing algorithms #Axles #Object oriented modeling #Goniometers #Production #Dead reckoning #Wheels #Position measurement #Velocity measurement
Optimal pseudo-steady-state estimators for systems with Markovian intermittent measurements
Proceedings of the American Control Conference - Tập 4 - Trang 3021-3027 vol.4 - 2002
A state estimator design is described for discrete time systems having observably intermittent measurements. A stationary Markov process is used to model probabilistic measurement losses. The stationarity of the Markov process suggests an analogous stationary estimator design related to the Markov states. A precomputable time-varying state estimator is proposed as an alternative to Kalman's optima...... hiện toàn bộ
#Loss measurement #Linear systems #Time varying systems #Gain measurement #State estimation #Markov processes #Kalman filters #Error correction #Covariance matrix #Mechanical engineering
Stability issues in dual time scale systems
Proceedings of the American Control Conference - Tập 5 - Trang 3914-3921 vol.5 - 2002
The paper presents some results on global exponential stability of linear time invariant systems with different time scales. Once fast and slow subsystems are derived, and controllers synthesized using Reaching Law Approach, global closed loop stability is derived for the whole system using Lyapunov methods.
#Lyapunov method #Asymptotic stability #Sliding mode control #State-space methods #Convergence #Automation #Time invariant systems #Closed loop systems #Time measurement #Interconnected systems
Proceedings of the 2002 American Control Conference [front matter]
Proceedings of the American Control Conference - Tập 2 - Trang i-lxiv
Conference proceedings front matter may contain various advertisements, welcome messages, committee or program information, and other miscellaneous conference information. This may in some cases also include the cover art, table of contents, copyright statements, title-page or half title-pages, blank pages, venue maps or other general information relating to the conference that was part of the ori...... hiện toàn bộ
Robust nonlinear control of the electromagnetically controlled oscillator
Proceedings of the American Control Conference - Tập 1 - Trang 809-814 vol.1
Most microelectromechanical systems are based on electromagnetic or electrostatic actuation forces. It is well known that linear controllers based on linearized models have a stable actuation range of one third of the nominal gap, while at larger displacements the electrostatic force dominates resulting in the electrodes pulling together. For Hammerstein systems with quadratic input nonlinearity w...... hiện toàn bộ
#Robust control #Oscillators #Electromagnetic forces #Microelectromechanical systems #Electrostatic actuators #Displacement control #Force control #Electrodes #Nonlinear control systems #Control systems
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