Integrated control of automobile ABS/DYC/AFS for improving braking performance and stability Online publication date: Mon, 18-May-2015
by Chong Feng; Nenggen Ding; Yongling He; Wen Chen
International Journal of Vehicle Design (IJVD), Vol. 67, No. 3, 2015
Abstract: Braking control on a μ-split road is not an easy task. An integrated control (ITC) algorithm is proposed by combining antilock braking system (ABS), direct yaw-moment control (DYC) and active front steering (AFS). The algorithm is intended for maximising the utilisation of road friction while maintaining directional stability of a vehicle during emergency braking on a μ-split road. A three-layer hierarchical control architecture is developed for the ITC. The upper-layer controller is used for DYC to generate a desired yaw moment, allocation of the moment to ABS and AFS is handled by the intermediate-layer controller, and two control algorithms are designed at the lower-layer for ABS and AFS, respectively. The performance of the ITC is compared with a modified independent control (MIC) algorithm via hardware-in-the-loop (HIL) simulations. The results show that the braking performance and stability of the vehicle are improved by employing the ITC algorithm.
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