281-287 2026 [춘계학술대회]
| 제목 | 볼램프 클러치 시스템의 클러치 마모보상 로직 개발 및 검증 |
|---|---|
| 분야 | 지능형 샤시 및 제어 |
| 언어 | Korean |
| 저자 | 방은솔(현대위아), 허원호(현대위아), 이정윤(현대위아), 전한빈(현대위아) |
| Key Words | Ball ramp(볼램프), Wet-Multi Plate clutch(습식 다판 클러치), Torque Accuracy(토크 정확도), Wear Compensation(마모보상), Clamping force estimation(가압력 추정), |
| 초록 |
This Study presents the development and vehicle level validation of wear compensation logic for ball-ramp actuated clutch system applied to a 2-speed active transfer case(ATC) produced by Hyundai-Wia. Unlike conventional hydraulic clutch actuation, ball-ramp mechanism convert motor-driven rotation into axial clamping force, enabling fast response and high force density. Due to friction material wear, the same axial ball-ramp displacement can produce reduced clamping force, resulting in degraded torque transfer capability. To address this problem, simplified dynamic relationship is formulated to estimated clutch clamping force from motor electrical power and wear-induced changes in effective actuation displacement are reflected by updated a compensated angle. The proposed control logic improves robustness by take in account of major disturbance factors – supply voltage and motor temperature and vehicle conditions. Dynamometer system durability and vehicle tests demonstrates the proposed approach maintains target torque performance after long-term use, confirming its feasibility for ball-ramp clutch application. |
| 원문(PDF) | 다운로드 |