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논문 기본 정보

자료유형
학술저널
저자정보
Seungjin Yoo (Korea Institute of Machinery and Materials) Yeongrack Son (Seoul National University) Jung-Ik Ha (Seoul National University) Cheol-Gyu Park (Korea Institute of Industrial Technology) Seung-Han You (Korea University of Technology and Education)
저널정보
유공압건설기계학회 드라이브·컨트롤 드라이브·컨트롤 Vol.16 No.3
발행연도
2019.9
수록면
23 - 32 (10page)

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초록· 키워드

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This study proposed a fault tolerant control algorithm for electro-hydraulic brake systems where permanent magnet synchronous motor (PMSM) drive is adopted to boost the braking pressure. To cope with motor position sensor faults in the PMSM drive, a braking pressure controller based on an open-loop speed control method for the PMSM was proposed. The magnitude of the current vector was determined from the target braking pressure, and motor rotational speed was derived from the pressure control error to build up the braking pressure. The position offset of the pump piston resulting from a leak in the hydraulic system is also compensated for using the open-loop speed control by moving the piston backward until it is blocked at the end of stroke position. The performance and stability of the proposed controller were experimentally verified. According to the results, the control algorithm can be utilized as an effective means of degraded control for electro-hydraulic brake systems in the case that a motor position sensor fault occurs.

목차

Abstract
1. Introduction
2. Overview of Electro-Hydraulic Brake System
3. Design of the Braking pressure Controller
4. Experimental Result
5. Conclusion
References

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