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Digital Horsepower Control of Electrohydraulic Variable Volume Pump
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English
Abstract
This paper reports on the development of a digital horsepower limiter for a variable volume piston pump. This is used to limit the pump's operation to a window bounded by flow and pressure limits, as well as the theoretical constant torque curve representing the prime mover's horsepower capability. A microprocessor based controller was designed, built, and tested. The digital horsepower controller continuously monitors pump flow feedback, and uses preset flow, pressure and horsepower limits. It then generates a conditioned pressure signal which is sent to an existing pressure limit control system, allowing the prime mover to be operated at its rated capacity. Testing of the digital horsepower controller indicated a stable system which maintained a constant input torque. This combined control system allows reduction in the size of the prime mover, lowering capital cost, improving efficiency, and reducing noise levels.
Authors
Citation
Claussen, J., Maxwell, J., Tran, T., and Gejji, R., "Digital Horsepower Control of Electrohydraulic Variable Volume Pump," SAE Technical Paper 921742, 1992, https://doi.org/10.4271/921742.Also In
References
- Parker Hannifin Corp. Series PVP and PAVC Variable Volume, Piston Pumps Catalog 2600-100-2/NA June 1991
- Burleigh S. El-Ibiary Y. “Hydraulic Fluid Power Components for Microprocessor Control,” Design News 55 62 Feb. 20 1984
- Henke R. “All-Fluid or Electrofluid That is the Question,” Control Engineering 63 67 June 1987
- Parker Hannifin Corp. “Eletro-Hydraulic Pump Controls,” Application Note, APP-2 Otsego, Michigan
- Parker Hannifin Corporation “Control Versatility with Variable Displacement Pumps,” Application Note APP-1 Otsego, Michigan
- Parker Hannifin Corp. Series PVV and PAVC Electrohydraulic Accessories Catalog 2600-400/NA Otsego, Michigan June 1988
- Claussen J. Maxwell J. Tran T. “Digital Horspower Controller,” Senior Design Project Report, Department of Electrical Engineering Western Michigan University Kalamazoo, Michigan April 1992
- Sedra Adel Smith Kenneth Microelectronic Circuits Second Fort Worth: Holt Rinehart and Winston Inc. 1987