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EMB시스템을 위한 새로운 클램핑력 추정기 설계 및 구현
최진영(JinYeong Choe),기영훈(Young-Hun Ki),전재한(Jae-Han Jeon),이상목(Sang-Mok Lee),안현식(Hyun-Sik Ahn) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
In this paper, a new type of a clamping force estimation algorithm is proposed which utilizes a special polynomial series for the modeling of hysteresis loops during the clamping and the releasing in the Electromechanical Brake system. The proposed estimation algorithm is implemented on the wheel ECU which is designed based on the Infineon TC1797. A cascade type of control architecture is used for the EMB actuator controller and control gains of each controller are selected for the fast and accurate force response performance. It is illustrated by lab tests that the proposed clamping force estimation method yields better performance than existing estimation methods.
EMB 시스템의 모델 기반 센서 고장 검출 알고리즘 개발
황우현(Woohyun Hwang),양이진(Ijin Yang),허건수(Kunsoo Huh) 한국자동차공학회 2012 한국 자동차공학회논문집 Vol.20 No.1
The brake-by-wire technology is a new automotive chassis system that allows standard braking operations by electronic components with lighter weights and faster response. The brake-by-wire units such as EMB (Electro-Mechanical Brake) are controlled by electronic sensors and actuators and, thus, the fault diagnosis is essential for implementation. In this study, a model-based fault diagnosis system is developed for the sensors based on the analytical redundancy method. The fault detection algorithm is verified in simulations for various faulty cases. A test bench is built including the EMB unit and the performance of the proposed fault diagnosis system is evaluated through the experiment.