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Research Papers

Investigation of an Energy Efficient Hydraulic Propulsion System for a Railway Machine

[+] Author and Article Information
Damiano Padovani

Maha Fluid Power Research Center,
Purdue University,
1500 Kepner Drive,
Lafayette, IN 47905
e-mail: dpadova@purdue.edu

Monika Ivantysynova

Maha Fluid Power Research Center,
Purdue University,
1500 Kepner Drive,
Lafayette, IN 47905
e-mail: mivantys@purdue.edu

Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received August 12, 2014; final manuscript received December 3, 2015; published online January 18, 2016. Assoc. Editor: Gregory Shaver.

J. Dyn. Sys., Meas., Control 138(3), 031009 (Jan 18, 2016) (9 pages) Paper No: DS-14-1330; doi: 10.1115/1.4032223 History: Received August 12, 2014; Revised December 03, 2015

Many railway construction and maintenance machines have large masses and perform repetitive working cycles with frequent stops that require precise positioning. For these reasons, a hydraulic propulsion system is a convenient choice. Common existing solutions make use of valve-controlled hydraulic circuits where inefficient fluid throttling takes place. Most of the time, dissipative braking is realized resulting in a remarkable quantity of available energy being wasted (up to 36 kJ of kinetic energy is available in the reference application). Additionally, the machine's automated positioning is a critical aspect. On some commercialized solutions, an overshoot of the desired final position is commonplace requiring a reverse motion in order to match the location of the desired working point. This is a negative characteristic as it introduces unnecessary fuel consumption and slows down productivity. Moreover, consideration of the limited adhesion in the wheel/rail interface is of critical importance. The propulsion system needs to be capable of differentiating the tractive or the braking torques between the driven axles. To this end, the paper proposes and analyzes a displacement-controlled (DC) propulsion system for a railway maintenance machine. The target is the removal of the fluid throttling mentioned above by defining an efficient hydraulic system. The ability to recover energy via regenerative breaking becomes a key process in improving the global machine efficiency. Simultaneously, an implementable control strategy is required for the proposed architecture to prevent overshoot of the desired position while stopping. To that end, this paper presents the mathematical model of the proposed layout used to simulate the system's behavior in order to confirm proper functioning. This work concludes with a discussion and definition of future improvements.

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References

U.S. Energy Information Administration, 2014, “ Short-Term Energy Outlook,” http://www.eia.gov/forecasts/steo/
Zimmerman, J. , 2008, “ Design and Simulation of an Energy Saving Displacement-Controlled Actuation System for a Hydraulic Excavator,” M.S. thesis, Purdue University, West Lafayette, IN.
Rahmfeld, R. , and Ivantysynova, M. , 1998, “ Energy Saving Hydraulic Actuators for Mobile Machines,” 1st Bratislavian Fluid Power Symposium, Casta Pila, Slovakia, pp. 177–186.
Williamson, C. , Zimmerman, J. , and Ivantysynova, M. , 2008, “ Efficiency Study of an Excavator Hydraulic System Based on Displacement-Controlled Actuators,” ASME/Bath Workshop on Fluid Power and Motion Control, Bath, UK, pp. 291–307.
Haybroek, K. , Palmberg, O. J. , Lillemets, J. , Lugnberg, M. , and Ousbäck, M. , 2008, “ Evaluating a Pump Controlled Open Circuit Solution,” 51st National Conference on Fluid Power, Las Vegas, NV, pp. 681–694.
Haybroek, K. , Larsson, J. , and Palmberg, J. O. , 2006, “ Open Circuit Solution for Pump Controlled Actuators,” 4th FPNI—Ph.D. Symposium, Sarasota, FL, pp. 27–40.
Kohmäscher, T. , and Murrenhoff, H. , 2006, “ Efficient Recuperation of Kinetic Energy—Hybrid Versus Hydrostatic Approach,” SAE Technical Paper No. 2007-01-4153.
Ihara, H. , Kakinuma, H. , Sato, I. , Inaba, Y. , Anada, K. , Morimoto, M. , Oda, T. , Kobayashi, S. , Ono, T. , and Karasawa, R. , 2008, “ Development of Motor-Assisted Hybrid Traction System,” Eighth World Congress on Railway Research (WCRR), Seoul, Korea, http://www.railway-research.org/WCRR-Congresses-2001-2008.
Dittus, H. , Hülsebusch, D. , and Ungethüm, J. , 2011, “ Reducing DMU Fuel Consumption by Means of Hybrid Energy Storage,” Eur. Transp. Res. Rev., 3(2), pp. 149–159. [CrossRef]
Kache, M. , 2014, “ Investigating an All-Hydraulic Hybrid System for Diesel-Hydraulic Rail Cars,” Eur. Transp. Res. Rev., 6(2), pp. 181–198. [CrossRef]
Padovani, D. , and Ivantysynova, M. , 2014, “ Energy Efficient Hydraulic Rotary Drive: Analysis and Comparison of Two Different Displacement Controlled Solutions,” 8th FPNI Ph.D. Symposium on Fluid Power, Lappeenranta, Finland, No. FPNI2014-7842, p. V001T01A010.
Rahmfeld, R. , 2002, “ Development and Control of Energy Saving Hydraulic Servo Drives for Mobile Systems,” Ph.D. thesis, Düsseldorf: VDI Fortschritt-Berichte, Reihe 12 Nr. 527.
Grabbel, J. , and Ivantysynova, M. , 2005, “ An Investigation of Swash Plate Control,” Int. J. Fluid Power, 6(2), pp. 19–36. [CrossRef]
Heywood, J. B. , 1988, Internal Combustion Engine Fundamentals, McGraw-Hill, New York.
Hay, W. , 1982, Railroad Engineering, Wiley, New York.
Polach, O. , 2005, “ Creep Forces in Simulations of Traction Vehicles Running on Adhesion Limit,” Wear, 258(7–8), pp. 992–1000. [CrossRef]
Johnson, K. L. , 1987, Contact Mechanics, Cambridge University Press, Cambridge.
Iwnicki, S. , 2006, Handbook of Railway Vehicle Dynamics, Taylor & Francis, London.
Bernard, E. J. , and Clover, C. L. , 1995, “ Tire Modeling for Low-Speed and High-Speed Calculations,” SAE International Congress and Exposition, Detroit, MI, SAE Paper No. 950311.
Miller, S. L. , Youngberg, B. , Millie, A. , Schweizer, P. , and Gerdes, J. C. , 2001, “ Calculating Longitudinal Wheel Slip and Tire Parameters Using GPS Velocity,” American Control Conference, Arlington, VA.
Berg, H. , and Ivantysynova., M. , 1999, “ Design and Testing of a Robust Linear Controller for Secondary Controlled Hydraulic Drive,” J. Syst. Control Eng., 213(5), pp. 375–386 (Special Issue: Control in Fluid Power Systems).
Bolton, P. J. , and Clayton, P. , 1984, “ Rolling-Sliding Wear Damage in Rail and Tyre Steels,” Wear, 93(2), pp. 145–165. [CrossRef]
Lewis, R. , and Dwyer-Joyce, R. S. , 2004, “ Wear Mechanisms and Transitions in Railway Wheel Steels,” J. Eng. Tribol., 218(6), pp. 467–478.

Figures

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Fig. 4

Structure of the dynamic model

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Fig. 1

Velocity of the machine during a characteristic working cycle

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Fig. 3

Schematic of the HSTs

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Fig. 2

Structure of the machine's mechanical transmissions

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Fig. 5

Free-body diagrams of the rolling stocks (above) and of the axles

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Fig. 9

Vehicle's velocity and brake's command during the considered working cycle

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Fig. 11

Pressures in the lines of the HSTs

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Fig. 12

Relevant torques of the system

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Fig. 13

CE's speed and CE's command

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Fig. 14

Variation of the slip coefficients

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Fig. 15

Detail of the vehicle's velocity (left) and pressures in the front HST for the system with on/off valves (right)

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Fig. 16

Detail of the FMs' hydraulic torques (left) and of the slip coefficients (right) for the system with on/off valves

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Fig. 6

Longitudinal (on the left) and transversal cross sections of the rail/wheel interaction

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Fig. 7

Structure of the proposed controller

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Fig. 10

Displacements of the primary units (VPs)

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Fig. 8

Variation of the adhesion coefficient versus slip

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