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Novel fine positioning method for hydraulic drives utilizing on/off-valves

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Novel fine positioning method for hydraulic drives utilizing on/off-valves. / Huova, Mikko; Linjama, Matti; Siivonen, Lauri; Deubel, Till; Försterling, Heino; Stamm, Edgar.

Proceedings of the BATH/ASME 2018 Symposium on Fluid Power and Motion Control FPMC2018: Bath, UK, September 12-14, 2018. ASME, 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Huova, M, Linjama, M, Siivonen, L, Deubel, T, Försterling, H & Stamm, E 2018, Novel fine positioning method for hydraulic drives utilizing on/off-valves. in Proceedings of the BATH/ASME 2018 Symposium on Fluid Power and Motion Control FPMC2018: Bath, UK, September 12-14, 2018. ASME, BATH/ASME Symposium on Fluid Power and Motion Control, Bath, United Kingdom, 12/09/18. https://doi.org/10.1115/FPMC2018-8891

APA

Huova, M., Linjama, M., Siivonen, L., Deubel, T., Försterling, H., & Stamm, E. (2018). Novel fine positioning method for hydraulic drives utilizing on/off-valves. In Proceedings of the BATH/ASME 2018 Symposium on Fluid Power and Motion Control FPMC2018: Bath, UK, September 12-14, 2018 ASME. https://doi.org/10.1115/FPMC2018-8891

Vancouver

Huova M, Linjama M, Siivonen L, Deubel T, Försterling H, Stamm E. Novel fine positioning method for hydraulic drives utilizing on/off-valves. In Proceedings of the BATH/ASME 2018 Symposium on Fluid Power and Motion Control FPMC2018: Bath, UK, September 12-14, 2018. ASME. 2018 https://doi.org/10.1115/FPMC2018-8891

Author

Huova, Mikko ; Linjama, Matti ; Siivonen, Lauri ; Deubel, Till ; Försterling, Heino ; Stamm, Edgar. / Novel fine positioning method for hydraulic drives utilizing on/off-valves. Proceedings of the BATH/ASME 2018 Symposium on Fluid Power and Motion Control FPMC2018: Bath, UK, September 12-14, 2018. ASME, 2018.

Bibtex - Download

@inproceedings{07280734b95247888289ce69f7d0139d,
title = "Novel fine positioning method for hydraulic drives utilizing on/off-valves",
abstract = "This paper studies a novel on/off-valve-based fine positioning method for hydraulic drives. The method proposed utilizes four on/off-valves in independent metering configuration to reach good positioning accuracy and low power losses. Previously, servo valves have been used in precise position control of hydraulic double acting cylinders. Another approach uses on/off-valves, which are typically driven by using pulse width modulation (PWM) or, if there are parallel connected valves, pulse code modulation (PCM). Typically, both cylinder sides are modulated simultaneously. The new concept proposed uses a cylinder model to calculate a correct opening sequence for the on/off-valves, such that the target piston position is reached. The method proposed modulates single cylinder side at a time in order to achieve small piston position step sizes. Despite relying on the modelled compressibility of the fluid, the method presented requires no knowledge about the bulk modulus of the fluid. It is enough that the bulk modulus of the fluid in both cylinder chambers can be assumed equal. The paper includes the design of the control method, a simulation study proving the validity of the method, and an experimental part investigating the performance in practice. The experimental results show a positioning accuracy of +/- 1 μm with an on/off-valve-based hydraulic drive, the maximum velocity of which is 0.7 m/s.",
author = "Mikko Huova and Matti Linjama and Lauri Siivonen and Till Deubel and Heino F{\"o}rsterling and Edgar Stamm",
year = "2018",
month = "9",
day = "14",
doi = "10.1115/FPMC2018-8891",
language = "English",
booktitle = "Proceedings of the BATH/ASME 2018 Symposium on Fluid Power and Motion Control FPMC2018",
publisher = "ASME",

}

RIS (suitable for import to EndNote) - Download

TY - GEN

T1 - Novel fine positioning method for hydraulic drives utilizing on/off-valves

AU - Huova, Mikko

AU - Linjama, Matti

AU - Siivonen, Lauri

AU - Deubel, Till

AU - Försterling, Heino

AU - Stamm, Edgar

PY - 2018/9/14

Y1 - 2018/9/14

N2 - This paper studies a novel on/off-valve-based fine positioning method for hydraulic drives. The method proposed utilizes four on/off-valves in independent metering configuration to reach good positioning accuracy and low power losses. Previously, servo valves have been used in precise position control of hydraulic double acting cylinders. Another approach uses on/off-valves, which are typically driven by using pulse width modulation (PWM) or, if there are parallel connected valves, pulse code modulation (PCM). Typically, both cylinder sides are modulated simultaneously. The new concept proposed uses a cylinder model to calculate a correct opening sequence for the on/off-valves, such that the target piston position is reached. The method proposed modulates single cylinder side at a time in order to achieve small piston position step sizes. Despite relying on the modelled compressibility of the fluid, the method presented requires no knowledge about the bulk modulus of the fluid. It is enough that the bulk modulus of the fluid in both cylinder chambers can be assumed equal. The paper includes the design of the control method, a simulation study proving the validity of the method, and an experimental part investigating the performance in practice. The experimental results show a positioning accuracy of +/- 1 μm with an on/off-valve-based hydraulic drive, the maximum velocity of which is 0.7 m/s.

AB - This paper studies a novel on/off-valve-based fine positioning method for hydraulic drives. The method proposed utilizes four on/off-valves in independent metering configuration to reach good positioning accuracy and low power losses. Previously, servo valves have been used in precise position control of hydraulic double acting cylinders. Another approach uses on/off-valves, which are typically driven by using pulse width modulation (PWM) or, if there are parallel connected valves, pulse code modulation (PCM). Typically, both cylinder sides are modulated simultaneously. The new concept proposed uses a cylinder model to calculate a correct opening sequence for the on/off-valves, such that the target piston position is reached. The method proposed modulates single cylinder side at a time in order to achieve small piston position step sizes. Despite relying on the modelled compressibility of the fluid, the method presented requires no knowledge about the bulk modulus of the fluid. It is enough that the bulk modulus of the fluid in both cylinder chambers can be assumed equal. The paper includes the design of the control method, a simulation study proving the validity of the method, and an experimental part investigating the performance in practice. The experimental results show a positioning accuracy of +/- 1 μm with an on/off-valve-based hydraulic drive, the maximum velocity of which is 0.7 m/s.

U2 - 10.1115/FPMC2018-8891

DO - 10.1115/FPMC2018-8891

M3 - Conference contribution

BT - Proceedings of the BATH/ASME 2018 Symposium on Fluid Power and Motion Control FPMC2018

PB - ASME

ER -