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This paper proposes a vehicle stability control algorithm that uses velocity and yaw rate during cornering for an in-wheel independent drive vehicle. The vehicle velocity control at the cornering determines the velocity limit that the vehicle can sustain the given cornering radius and controls the vehicle velocity for safe cornering if the vehicle velocity is faster than the velocity limit. The yaw...
According to the motion characteristic and hydrodynamics of high-speed deep-V planning, a real-time 6DOF mathematical motion model for the USV was built and the performance was simulated in Matlab/Simulink software tool. Then a fuzzy logic system for autonomous navigation of unmanned surface vehicles is presented. The control system intelligently controls the vehicle to go from origin to destination...
In order to solve the problem of excessive understeer of four-wheel -steering vehicle with zero mass-center side-slip angle and proportional control at high speed, using fuzzy logical control method, adding direct yaw moment control of four wheel steering to solve this question. a two DOF four-wheel-steering vehicle model with integrated control of steering angle and yaw moment was established. The...
This work presents a systematic procedure for flight control design of fixed wing unmanned aerial vehicles using Matlab platform. The complex, non-linear, six degree-of-freedom dynamics of the vehicle is broken down into longitudinal and lateral dynamics after linearization about a flight condition. Primary control design task includes height, speed and heading control. A control assignment and control...
EV with 4 in-wheel motors has advantages of system's light weight because it has respectively independent control system. But it is difficult that EV has to control four in-wheel motors at once. The speeds of four in-wheel motors are different each other, because the disturbance and over wheel of four in-wheel motors are not the same. EV is necessary to control synchronously. Velocity differences...
In the parallel hybrid electric vehicle (PHEV) the load torque and speed control are the key point for efficient driving vehicle. A dynamic model of PHEV derived by an induction motor (IM) and an internal combustion engine (ICE) is made using Simulink package in Matlab. A comparison between a conventional PID controller and a fuzzy logic control (FLC) method. Also, analysis of IM with FL at variable...
Active steering is a newly developed technology for passenger cars to enhance vehicle stability and handling performance. A fractional-order PIlambdaDmu control strategy is applied on active steering vehicle based on a multi-body vehicle dynamic model in this paper and the active control is expressed as a sum of PIlambda and PDmu control. The multi-body vehicle dynamic model using ADAMS can accurately...
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