Some Design Aspects of Anti-Lock Brake Systems for Commercial Vehicles |
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| Authors: | R R Guntur Senior Research Associate J Y Wong Professor and Director |
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| Institution: |
a Transport Technology Research Laboratory, Carleton University,
b Department of Mechanical and Aeronautical Engineering, Transport Technology Research Laboratory, Carleton University, |
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| Abstract: | In this paper a simulation model of tractor-semitrailers suitable for design and performance analysis of anti-lock systems is presented. The model is used to evaluate the effects of various methods of prediction and reselection of the anti-lock system on the braking performance of tractor-semitrailers. The characteristics and the equivalent control logic of a commercially available anti-lock system are examined and its deficiencies are identified. To rectify these deficiencies, improved methods of prediction and reselection are proposed. A comparison of the slip characteristics and braking effectiveness between the proposed and the commercially available systems is made. The effects of various types of control logic on the steerability and directional stability of tractor-semitrailers and on the air consumption of the brake systems will be examined in a separate paper. |
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