Localizing and Manufacturing Electric Hydraulic Actuator Localizing and Manufacturing 5th Team - EHA 20081834 Yooseok Jeong G20140355 Hou Chengkun 20081800 Seo-Hyun Sohn 20081830 Won Jang 20081850 Yong-Gyu Hwang I'm EHA team member . I will start the presentation. this is team member.

Contents 1. Motivation & Objective 2. Manufaturing an EHA Selecting Parts of EHA Cylinder Position Sensor Motor & Pump Assembly Drawing Designing a Control Circuit 3. Conclusion Introducing a Prototype Now i will show you the context. At first, I will tell you motivation, and objective Final Evaluation Showing how to work Data analysis Final assessment

Motivation & Objective General Hydraulic SYS Problem Pipe oil-leakage Control Accuracy Size Efficiency This picture is punching machine and cutting machine. This machines operate by hydraulic system. This machine have some problem, the red circle means oil pipe parts. If the pipe is long, it can cause oil leakage problem. Also have problem accuracy, size, efficiency.

Motor, Pump, and Cylinder Motivation & Objective Objective Proposal 일체형 전동유압액추에이터 (EHA) Motor, Pump, and Cylinder Korean Circumstances Although this problems exist, 읽어. So Our team will make EHA for solve this problem. We get specification what we have to satisfy from proposal. As you can see, Speed, thrust and transfer distance Research of EHA in Korea is in beginning phase No domestic companies sell EHA

Motivation & Objective Target value Speed 150mm/sec over Thrust 4ton over Transfer distance 200mm over Oil-leakage Reduce pipe length and connection parts Accuracy Distance error, less than 1mm Size Reduce volume by 20% Price Same as commercial hyd-system This is our objective. Requiremen

Manufacturing an EHA Selecting Parts of EHA - Cylinder Hyd Cylinder (케이시시정공) Specification Load type Single load speed 8~200mm/sec Diameter Φ63mm length 300mm Pressure 140kgf/cm2 Force 4361kgf

Building an EHA LVDT Linear Scale Selecting Parts of EHA – Position Sensor LVDT Linear Scale Got an denial message from Cylinder maker. We selected Linear Scale to use in EHA system Resolution, Measure coverage of Linear Scale is acceptable

Building an EHA Selecting Parts of EHA – Motor and Pump Because of the price and cross-browsing design problem, we need expert’s help. Expert will give us selected parts.

Building an EHA Assembly Drawing - Joint, Assembled model

Building an EHA Assembly Drawing - Main Body, Linear scale connecting part

Building an EHA Assembly Drawing - Driving Visualization Because of suggestion from other student, we move this movie to preceding page. When we make prototype, we change this movie to actual machine working.

Building an EHA Assembly Drawing – Designing a Control Circuit

Conclusion Introducing a Prototype

Conclusion Data Analysis  

Conclusion Data Analysis   PID제어를 사용한다면 Gain값에 따른 gragh

Conclusion Final Assessment

Reference S. H. Park “Characteristics of an Electro Hydrostatic Actuator and Application Fields” 유공압시스템학회지 제6권 제1호 pp. 2~10 2009년 3월 S. H. Park, “A Study on Control of Electro-Hydraulic Servo System Using High Speed Solenoid Valve,” Dept. of Mechanical and precision Engineering Gradate School Pusan National University, Feb, 1996. 김종식, “선형 제어시스템 공학” 淸文, 2005. Y. H. Park, S. H. Park “EHA(Electro-Hydrostatic Actuator) Identification and control of Position Control System for Electro-Hydraulic Actuator” 한국동력기계공학회지 제15권 제2호 pp.69~77 2011년 4월 Automatic Control Systems (9 New, Hardcover) Patent Material ▪ 유체압 실린더 장치, 출원번호 특개2002-081402(일본특허) ▪ 전기유압 액츄에이터, 출원번호 특개2005-325959(일본특허) ▪ 유압 편로드 실린더를 구비한 산업용 전기유압 일체형 구동기 시스템, 출원번호 10-2011-0120657 ▪ 산업용 전기유압 일체형 구동기 시스템의 성능 및 효율 개선을 위한 제어방법, 출원번허 10-2010-0111339 ▪ 전기 유압 하이브리드 액츄에이터, 출원번호 10-2011-0124843 ▪ 자동변속기용 유압제어 시스템, 출원번호 특1997-025547 ▪ 유압제어 시스템, 출원번호 10-2014-7004624 (국제특허) ▪ 전동식 오일펌프의 유압제어장치 및 방법, 출원번호 10-2011-0054770 (국제특허) ▪ 전압제어회로, 출원번호 10-2008-0089100 (국제특허) (7) 리쯔밍, 이지민, 박성환, 김종식, 박용호, “전기 정유압 구동기를 적용한 유압식 동력 조향 시스템”,한국동력기계공학회지 15권 6호 86 ~ 94 페이지 (8) 이지민, 박성환, 박민규, 김종식,”적응PID 슬라이딩 모드 제어기법을 적용한 EHA 시스템의 위치제어(A Position Control of EHA Systems using Adaptive PID Sliding Mode Control Scheme), 한국동력기계공학회지 17권 4호 120 ~ 130 페이지 (9) Min Gyu Park. Sung Hwan Park, Jong Shik Kim, Ho Gil Lee “Modeling and Control and Electro Hydrostatic Actuator Systems” 2009년 8월 pp.3003 - 3008

Question