Robust Clamping Force Control of an Electro-Mechanical Brake System for Application to Commercial City Buses
1
Graduate School of Mechanical Engineering, Yeungnam University, Gyeongsan-si, Gyensangbuk-do 38541, Korea
2
Advanced Development Team, Sangsin Brake Co., Ltd., Dalsung-gun, Daegu Metropolitan City 43023, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Felipe Jimenez
Energies 2017, 10(2), 220; https://doi.org/10.3390/en10020220
Received: 15 December 2016
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Revised: 1 February 2017
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Accepted: 7 February 2017
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Published: 14 February 2017
(This article belongs to the Special Issue Methods to Improve Energy Use in Road Vehicles)
This paper proposes a sensor-less robust force control method for improving the control performance of an electro-mechanical brake (EMB) which is applicable to commercial city buses. The EMB generates the accurate clamping force commanded by a driver through an independent motor control at each wheel instead of using existing mechanical components. In general, an EMB undergoes parameter variation and a backdrivability problem. For this reason, the cascade control strategy (e.g., force-position cascade control structure) is proposed and the disturbance observer is employed to enhance control robustness against model variations. Additionally, this paper proposed the clamping force estimation method for a sensor-less control, i.e., the clamping force observer (CFO). Finally, in order to confirm the performance and effectiveness of a proposed robust control method, several experiments are performed and analyzed.
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MDPI and ACS Style
Eum, S.; Choi, J.; Park, S.-S.; Yoo, C.; Nam, K. Robust Clamping Force Control of an Electro-Mechanical Brake System for Application to Commercial City Buses. Energies 2017, 10, 220. https://doi.org/10.3390/en10020220
AMA Style
Eum S, Choi J, Park S-S, Yoo C, Nam K. Robust Clamping Force Control of an Electro-Mechanical Brake System for Application to Commercial City Buses. Energies. 2017; 10(2):220. https://doi.org/10.3390/en10020220
Chicago/Turabian StyleEum, Sangjune, Jihun Choi, Sang-Shin Park, Changhee Yoo, and Kanghyun Nam. 2017. "Robust Clamping Force Control of an Electro-Mechanical Brake System for Application to Commercial City Buses" Energies 10, no. 2: 220. https://doi.org/10.3390/en10020220
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