1. Automotive Design Team; Daewon Kang Up Co. ltd, 114-41 Osong 1-gil, Seonggeo; Seobuk Cheonan Chungnam 31042 Republic of Korea
2. Division of Mechanical and Automotive Engineering; Kongju National University, 1223-24 Cheonandaero; Seobuk, Cheonan Chungnam 31080 Republic of Korea
3. Department of Industrial Engineering, University of Pittsburgh; 1034 Bendum Hall, Pittsburgh; Pensylvania 15260
4. Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering & Applied Science, 48-121F Engineering IV; Box 951597, University of California; Los Angeles California 90095