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In this paper, we present a control method based on nonlinear constrained optimization combined with singular perturbation theory, to deal with the problem for a vehicle to brake in a corner with stability. The control laws are elaborated from a simple horizontal model and are shown to be very robust to unmodeled dynamics (such as the vertical dynamics of the car and the suspensions).
This paper describes the use of a formal optimisation procedure to optimise a plug-in hybrid electric bus using two different case studies to meet two different performance criteria; minimum journey cost and maximum battery life. The approach is to choose a commercially available vehicle and seek to improve its performance by varying key design parameters. Central to this approach is the ability to...
This paper presents a path planning concept of a four wheel driven electric vehicle. Based upon an extension of the standard nonlinear single track model, which describes the vehicle dynamics, a method for optimal control of nonlinear ODEs is used to generate actuation values which lead the vehicle through a given course. The activation of the four single drives allows an improvement of the driving...
The objectives of this paper are to establish the mathematical model and the robust control technique of the active suspension system for a quarter-car model. The aim of a car suspension system is to improve riding quality while handling characteristics subject remain good to uneven or rude road surface. The purpose of designing the controller for the car suspension system is to reduce the traditional...
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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