A novel solution for the elimination of mode switching in pump-controlled single-rod cylinders

Petter H. Gøytil; Damiano Padovani; Michael R. Hansen

doi:10.3390/act9010020

A novel solution for the elimination of mode switching in pump-controlled single-rod cylinders

Petter H. Gøytil^*, Damiano Padovani, Michael R. Hansen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

This paper concerns the stability issue of pump-controlled single-rod cylinders, known as mode switching. First, a review of the topic is provided. Thereafter, the most recently proposed solution for the elimination of mode switching is investigated and shown to result in unstable behavior under certain operating conditions. A theoretical analysis is provided demonstrating the underlying mechanisms of this behavior. Based on the analysis, a novel control strategy is proposed and investigated numerically. Proper operation and stability are demonstrated for a wide range of operating conditions, including situations under which the most recently proposed solution results in unstable behavior and loss of control over the actuator.

Original language	English
Article number	20
Journal	Actuators
Volume	9
Issue number	1
DOIs	https://doi.org/10.3390/act9010020
State	Published - 1 Mar 2020
Externally published	Yes

Keywords

Electrohydraulic valves
Large inertia loads
Linear actuators
Mode switching instability
Oscillations
Pump-controlled systems
Single-pump circuits
Stability

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10.3390/act9010020

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title = "A novel solution for the elimination of mode switching in pump-controlled single-rod cylinders",

abstract = "This paper concerns the stability issue of pump-controlled single-rod cylinders, known as mode switching. First, a review of the topic is provided. Thereafter, the most recently proposed solution for the elimination of mode switching is investigated and shown to result in unstable behavior under certain operating conditions. A theoretical analysis is provided demonstrating the underlying mechanisms of this behavior. Based on the analysis, a novel control strategy is proposed and investigated numerically. Proper operation and stability are demonstrated for a wide range of operating conditions, including situations under which the most recently proposed solution results in unstable behavior and loss of control over the actuator.",

keywords = "Electrohydraulic valves, Large inertia loads, Linear actuators, Mode switching instability, Oscillations, Pump-controlled systems, Single-pump circuits, Stability",

author = "G{\o}ytil, {Petter H.} and Damiano Padovani and Hansen, {Michael R.}",

note = "Publisher Copyright: {\textcopyright} 2020 by the authors.",

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month = mar,

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doi = "10.3390/act9010020",

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volume = "9",

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AU - Gøytil, Petter H.

AU - Padovani, Damiano

AU - Hansen, Michael R.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - This paper concerns the stability issue of pump-controlled single-rod cylinders, known as mode switching. First, a review of the topic is provided. Thereafter, the most recently proposed solution for the elimination of mode switching is investigated and shown to result in unstable behavior under certain operating conditions. A theoretical analysis is provided demonstrating the underlying mechanisms of this behavior. Based on the analysis, a novel control strategy is proposed and investigated numerically. Proper operation and stability are demonstrated for a wide range of operating conditions, including situations under which the most recently proposed solution results in unstable behavior and loss of control over the actuator.

AB - This paper concerns the stability issue of pump-controlled single-rod cylinders, known as mode switching. First, a review of the topic is provided. Thereafter, the most recently proposed solution for the elimination of mode switching is investigated and shown to result in unstable behavior under certain operating conditions. A theoretical analysis is provided demonstrating the underlying mechanisms of this behavior. Based on the analysis, a novel control strategy is proposed and investigated numerically. Proper operation and stability are demonstrated for a wide range of operating conditions, including situations under which the most recently proposed solution results in unstable behavior and loss of control over the actuator.

KW - Electrohydraulic valves

KW - Large inertia loads

KW - Linear actuators

KW - Mode switching instability

KW - Oscillations

KW - Pump-controlled systems

KW - Single-pump circuits

KW - Stability

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DO - 10.3390/act9010020

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SN - 2076-0825

VL - 9

JO - Actuators

JF - Actuators

IS - 1

M1 - 20

ER -

A novel solution for the elimination of mode switching in pump-controlled single-rod cylinders

Abstract

Keywords

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