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This paper proposes an efficient and robust control scheme for the position-sensorless electric vehicle (EV) with a brushless dc motor. The back electromotive force detection method is first adopted and improved to implement sensorless control of the motor. The equivalent circuits of the control system are depicted, and the mathematical models under normal driving and energy regeneration are then...
This paper presents the modelling of a four rotor vertical take-off and landing (VTOL) unmanned air vehicle known as the quadrotor aircraft. The paper presents a new model design method for the flight control of an autonomous quad rotor. The paper describes the controller architecture for the quadrotor as well. The dynamic model of the quad-rotor, which is an under actuated aircraft with fixed four...
The objective of this paper is study the small signal stability of congested TCP networks. The starting point for this analysis is a fluid model describing the interaction of TCP-controlled traffic with congested routers. Assuming integral action in the active queue management scheme, we compute the network's equilibrium point about which we determine the network's small -signal dynamics. Some variations...
This paper introduces the differential-braking algorithm to control the stability of tractor semi-trailer. First, it analyses the theory of differential-braking control and confirm the control strategy that follows the ideal yaw rate of 2-DOF model. From this point of view, a PID controller has been designed. The result of the co-simulation associated with MATLAB and ADAMS shows that the differential-braking...
The performance of electric bicycles is largely determined by their electric controllers, which is regarded as a core component in the whole system. We use the robust control theory to design a Hinfin robust controller for the current loop in the closed speed-current dual-loop system. Furthermore, we use the Hinfin robust controller to design an energy recovery controlling system based on the driving...
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