Abstract

The paper introduces a continuous wheel slip control (WSC) approach for the decoupled electro-hydraulic brake (DEHB) system with an individual braking torque control at each wheel. This system was implemented on the sport utility vehicle (SUV) demonstrator for further validation of the developed control strategies. To fulfill requirements in robustness and quick response of the closed-loop system, conventional sliding mode (SM) and integral sliding mode (ISM) controls are proposed in the paper and compared with PI and rule-based strategies. Their control quality was analyzed and compared by the road tests performed on the surface with low coefficient of friction. Obtained results have confirmed an improvement of the braking performance and ride quality by application of the proposed continuous WSC which guarantees precise and smooth tracking of the wheel slip.

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