Browse > Article
http://dx.doi.org/10.3795/KSME-A.2002.26.12.2615

A Study on 3 Shaft Hydromechanical Transmission Design Considering Power and Speed Characteristics  

Sung, Duk-Hwan (성균관대학교 대학원)
Kim, Hyun-Soo (성균관대하가교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.26, no.12, 2002 , pp. 2615-2623 More about this Journal
Abstract
In this paper, a systematic design approach for a three shaft hydromechanical transmission(HMT) system is proposed by considering the power characteristics and speed ratio range. Using network analysis, possible configurations of the 3 shaft HMT are analyzed and it is found that the influence of HSU stroke on the power distribution of the HMT can be investigated by the network analysis. In addition, design methods are presented from the viewpoint of (1) power distribution and (2) speed ratio range. From the power distribution and the speed ratio range, a HMT configuration can be constructed, which minimizes the power circulation and provides the desired speed ranges. Based on the 3 shaft HMT analyses and the proposed design approach, a 3 shaft HMT is designed which provides 4 speeds in forward and 1 speed in reverse while keeping the power circulation less than 150% of the input power. It is expected that the design method suggested in this study can be used in a systematic design of the 3 shaft HMT.
Keywords
Network Analysis; HMT; HSU; Power; Speed;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Mano, T. and Nomura, K., 1976, 'Hydro-mechanical Transmissions,' JSAE, Vol. 30, No. 9, pp. 765-770
2 Hedman, A., 1988, 'A Method to Analyse Mechanical Transmission Systems,' Report no. 1985-11-08, Division of Machine Elements, Chalmers University of Technology, Goreborg, Sweden, pp. 9-13
3 Sung, D. H., Kim, H. E., Lee, K. H., Kim, H. S., 2001, 'Power Transmission chracteristics of a Hydro-Mechanical Transmission,' Journal of KSME, Vol. 25, No. 11, pp. 1854-1862
4 Pichard, J. and Besson, B., 1981, 'Hydrostatic Power Splitting Transmission Design and Application Examples,' Transactions of ASME, Vol. 103, pp. 168-173
5 Mitsuya, H. and Otani, K., Ishino, T., Maruyama, R., Akasaka, T., 1994, 'Development of Hydromechanical Transmisson for Bulldozers,' SAE 941722
6 Hedman, A., 1988, 'Computer-aided Analysis of General Mechanical Transmission Systems - Some Examples,' Ph. D Thesis, Chalmers University of Technology, Goteborg, Sweden, pp. E1-E16
7 Kim, W., Jung, S. B., Kim, H. S., 1996, 'Analysis of Power Transmission Characteristics for Hydro-Mechanical Transmission using Extended Network Theory,' Journal of KSME, Vol. 20, No. 5, pp. 1426-1435
8 Aitzetmuller, H., 2000, 'Steyr S-matic - The Future CVT System,' FISITA, Seoul, F2000A130.
9 Kelly, W. R., 1999, 'A CVT for V8 Engine Application in Passenger Car and Light Trucks,' Proceedings of International Congress on Continuously Variable Power Transmission CVT'99, pp. 125-135
10 Kinokami, K. and Miki, K., 1999, 'A Development of HMT for Trucks and Buses,' Proceedings of International Congress on Continuously Variable Power Transmission CVT'99, pp. 125-135
11 Ross, W. A., 1972, 'Designing a Hydromechanical Transmission for Heavy Duty Trucks,' SAE 720725
12 Kress, J. H., 1968, 'Hydrostatic Power-Splitting Transmissions for Wheeled Vehicles - Classification and Theory of Operation,' SAE 680549
13 Nomura, K., 1976, 'Study on the Characteristics of Hydromechanical Transmission,' Mitsubishi Industry Tech. Review, Vol. 13, No. 3, pp. 456-463