Clamp-Force Estimation for a Brake-by-Wire System: A Sensor-Fusion Approach |
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Authors: | Saric S. Bab-Hadiashar A. Hoseinnezhad R. |
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Affiliation: | Fac. of Eng. & Ind. Sci., Swinburne Univ. of Technol., Melbourne, VIC; |
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Abstract: | The elimination of a clamp-force sensor from brake-by-wire system designs is strongly demanded due to implementation difficulties and cost issues. In this paper, a new method is presented to estimate the clamp force based on other sensory information. This estimator fuses the outputs of two models to optimize the root-mean-square error (RMSE) of estimation. Experimental results show that the estimator can accurately track the true clamp force for high-speed cases as demanded by the antilock braking system controls. A training strategy has been used to ensure that the estimator can successfully adapt to parameter variations associated with wear. This paper is concluded with a discussion on the reliability of the developed clamp-force estimator. |
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