Clamping force control based on dynamic model estimation for electromechanical brakes

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The electromechanical brake (EMB) is expected to be utilized for future brake systems due to its many advantages. In this paper, keeping commercialization of the EMB in mind, a new EMB clamping force controller is proposed to overcome the limitations of the existing controller, namely, the extra cost for sensor installation and response delay. To design the controller, both mechanical parts and electrical parts in the EMB have to be mathematically analyzed. Also, dynamic models, clamping force, and friction torque are estimated to generate some feed-forward terms of the controller. With an estimation of the contact point where brake pads start to come into contact with a disk wheel, the clamping force is expressed as a polynomial curve versus the motor angle. The estimated clamping force is evaluated in comparison with measured values by a load cell. The proposed controller is based on an adaptive sliding mode control method with an adaptive law reducing errors of the friction torque model. Lastly, the performance of the entire control system is compared with that of the existing controller on a test bench. © IMechE 2017.
Publisher
SAGE PUBLICATIONS LTD
Issue Date
2018-12
Language
English
Article Type
Review
Citation

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, v.232, no.14, pp.2000 - 2013

ISSN
0954-4070
DOI
10.1177/0954407017738394
URI
http://hdl.handle.net/10203/248693
Appears in Collection
ME-Journal Papers(저널논문)
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