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This paper discuss about the development of Proportional and Integral (PI) controller for disc speed by involving the disturbance at the feedback control. The effect of the disturbance to the disc speed system is eliminated by Proportional and Integral (PI) controller. The PI controller is tuned heuristically from the MATLAB/simulink at which integrated with the disc plant. The performance of the...
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...
Bus dynamics is analyzed and 4 degrees of freedom dynamics model is established according to basic dynamic characteristics of bus. The corresponding computer simulation program is developed by using Matlab software. From practical view, structural parameters which are impacted by bus maneuverability and stability such as tire cornering stiffness, steering wheel rotational inertia, steering transmission...
Vehicle stability control for the vehicle is investigated using electro-hydraulic brake (EHB) control in this paper. It describes a vehicle stability controller based on Electro-Hydraulic Braking (EHB) System which acts on the brake system to generate a corrective yaw moment that helps the vehicle to follow the course desired by the driver. A cosimulation system for EHB has been developed in this...
Based on the analysis of the steering performance, the objective of this paper is to present evidence for the tractor adopted the four-wheel steering (4WS) which can improve the handling and stability of tractor semi-trailer. The simplified single track model with 3 DOF for 4WS tractor semi-trailer has been constructed for dynamic simulation through time-domain response on the two states of small...
In order to improve the lateral stability of the vehicles at a high speed, a parameter self-tuning fuzzy PID Control method to control the yaw moment couple with side slip angle of the front wheel is proposed, and a Fuzzy PID controller is designed. Based on Vehicle dynamic model analysis, and by using MATLAB / Simulink software, vehiclepsilas yaw rate and the side slip angle of the front at the step...
Multi-agent based real-time control algorithm has prominent advantages in solving complicated distributed control problem. In this paper, a multi-agent based integrated control framework is proposed to organize the active steering, driveline and braking controllers, traditionally they have been relatively independent. Supervisor-like coordination mechanism is employed to manage interdependences and...
Because three-axle heavy-vehicle with front-wheel steering has big radius at low speed and bad stability at high speed, in order to improve heavy vehicle steering performance at different speed, the multi-axle dynamic steering technology is put forward. Selecting zero side-slip angle of mass center and proportional control strategy to control vehicle, Using MATLAB, the steering performance of the...
Reported researches on semi-active suspension neglect the actuador dynamics, missing important information that can deteriorate the suspension's performance. The present research proposes a new semi-active suspension model with a magnetorheological damper, including its dynamics. Three control approaches are applied to this suspension model to improve passenger comfort and vehicle stability. The well...
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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