Research on EMB control strategy considering braking gap

Zheng Xu; Guowei Gao

doi:10.1117/12.2646913

7 September 2022 Research on EMB control strategy considering braking gap

Zheng Xu, Guowei Gao

Proceedings Volume 12329, Third International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2022); 123292U (2022) https://doi.org/10.1117/12.2646913
Event: Third International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2022), 2022, Changsha, China

Abstract

The wear of the brake pad will lead to the increase of the braking gap, thus prolonging the braking time and threatening the driving safety of the driver. In this paper, the working principle of each functional component of the EMB actuator is analyzed, and the simulation model of each component is established. At the same time, a three closed loop PI controller suitable for the actuator is designed, and the control strategy considering the braking gap is added. The expected clamping force is applied at the control end to compare the changes of the three parameters of EMB, namely, clamping force, motor speed and screw displacement, with and without brake clearance control. The simulation results show that this strategy can eliminate the braking gap as soon as possible and improve the response speed of the actuator. Moreover, after the braking, the screw can quickly return to the initial position to prepare for the next braking, which effectively avoids the adverse braking conditions that may occur due to the change in the size of the braking gap.

Citation Download Citation

Zheng Xu and Guowei Gao "Research on EMB control strategy considering braking gap", Proc. SPIE 12329, Third International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2022), 123292U (7 September 2022); https://doi.org/10.1117/12.2646913

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