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Electronic Wedge Brake 시스템의 클램핑력 추정 및 Failsafe 제어 알고리즘 설계에 관한 연구

Title
Electronic Wedge Brake 시스템의 클램핑력 추정 및 Failsafe 제어 알고리즘 설계에 관한 연구
Other Titles
A Study on the Clamping Force Estimation and Failsafe Control Algorithm Design of the Electronic Wedge Brake System
Author
이형철
Keywords
Electronic wedge brake; Electro-mechanical brake; Failsafe control; Self reinforcement; Clamping force; Modeling; 전기 웨지 브레이크; 전기기계식 브레이크; 고장안전 제어; 자기 배력; 클램핑력; 모델링
Issue Date
2016-01
Publisher
한국자동차공학회
Citation
한국자동차공학회 논문집, v. 24, NO 1, Page. 16-23
Abstract
The EWB(electronic wedge brake) is one in which the braking force is developed in a wedge and caliper system and applied to a disk and wedge mechanism. The advantage of the wedge structure is that it produces self-reinforcing effect and hence, utilizes minimal motor power, resulting in reduced gear and current. The extent of use of clamping force sensors and protection from failure of the EWB system directly depends on the level of vehicle mass production. This study investigated the mathematical equations, simulation modeling, and failsafe control algorithm for the clamping force sensor of the EWB and validated the simulations. As this EWB system modeling can be applied to motor inductance, resistance, screw inertia, stiffness, and wedge mass and angle, this study could improve the accuracy of simulation of the EWB. The simulation results demonstrated the braking force, motor speed, and current of the EWB system when the driver desired to the step and pulse the brake force inputs. Moreover, this paper demonstrated that the proposed failsafe control algorithm accurately detects faults in the clamping force sensor, if any.
URI
http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=JDCGCC_2016_v24n1_16http://hdl.handle.net/20.500.11754/31682
ISSN
1225-6382; 2234-0149
DOI
10.7467/KSAE.2016.24.1.016
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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