CLC number: TP271.3
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2014-09-17
Cited: 2
Clicked: 8532
Bo Jin, Ya-guang Zhu, Wei Li, De-sheng Zhang, Lu-lu Zhang, Fei-fei Chen. A differential control method for the proportional directional valve[J]. Journal of Zhejiang University Science C, 2014, 15(10): 892-902.
@article{title="A differential control method for the proportional directional valve",
author="Bo Jin, Ya-guang Zhu, Wei Li, De-sheng Zhang, Lu-lu Zhang, Fei-fei Chen",
journal="Journal of Zhejiang University Science C",
volume="15",
number="10",
pages="892-902",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.C1400056"
}
%0 Journal Article
%T A differential control method for the proportional directional valve
%A Bo Jin
%A Ya-guang Zhu
%A Wei Li
%A De-sheng Zhang
%A Lu-lu Zhang
%A Fei-fei Chen
%J Journal of Zhejiang University SCIENCE C
%V 15
%N 10
%P 892-902
%@ 1869-1951
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C1400056
TY - JOUR
T1 - A differential control method for the proportional directional valve
A1 - Bo Jin
A1 - Ya-guang Zhu
A1 - Wei Li
A1 - De-sheng Zhang
A1 - Lu-lu Zhang
A1 - Fei-fei Chen
J0 - Journal of Zhejiang University Science C
VL - 15
IS - 10
SP - 892
EP - 902
%@ 1869-1951
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.C1400056
Abstract: For the proportional directional valve controlled by two proportional solenoids, the normal control method (NCM) energizes only one solenoid at a time. The performance of the valve is greatly influenced by the nonlinearity of the proportional solenoid, such as dead zone and low force gain with a small current, and this effect cannot be eliminated by a simple dead-zone current compensation. To avoid this disadvantage, we propose the differential control method (DCM). By employing DCM, the controller outputs differential signals to simultaneously energize both solenoids of the proportional valve, and the operating point is found by analyzing the force output of the two solenoids to make a minimum variation of the current force gain. The comparisons of the valve response characteristics are made between NCM and DCM by nonlinear dynamic simulation and experiments. Simulation and experimental results show that by using DCM, the frequency response of the valve is greatly enhanced, especially when the input is small, which means that the dynamic characteristics of the proportional valve are improved.
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