توضیحات
The most effective chassis control system for improving vehicle safety during severe braking is anti-lock braking system (ABS). In this paper, a nonlinear optimal controller is analytically designed for ABS by the prediction of the wheel slip response from a continuous nonlinear vehicle dynamics model. A new reference model for the wheel slip, which considers the effects of variations of tire normal load and tire/road condition, is proposed to be tracked by the controller. The main properties of the designed controller are evaluated and discussed by considering the important practical aspects of the slip control problem. The performed analysis along with the simulation results indicate that the designed controller with different special cases can successfully cope with the strong nonlinearity and realistic
uncertainties existing in vehicle dynamics model. Meanwhile, a compromise between tracking accuracy and control energy can be easily made by the regulation of the weighting ratio, as a free parameter in the optimal control law
Recently, the development of chassis control systems for improving vehicle active safety has generated considerable
interest in research community and automotive industries. Among these systems, the anti-lock brake system (ABS) is used to directly control the longitudinal dynamics of vehicle during braking
The basic function of an ABS is to prevent the wheel form locking, and to regulate the longitudinal slip of the wheel at its optimum value in order to generate the maximum braking force. This permits the vehicle to achieve the shortest stopping distance during braking and at the same time improves the vehicle directional control and stability indirectly
Year:2012
By:Mehdi Mirzaei , Hossein Mirzaeinejad
File Information :English Language/17Page/Size:436K
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سال :2012
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اطلاعات فایل :زبان انگلیسی/17 صفحه/حجم :436 K
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