scholarly journals Time Delay Control of Hydraulic Pressure Control System. Control method for the delay of control element.

1996 ◽  
Vol 27 (1) ◽  
pp. 172-179
Author(s):  
Sanroku Sato ◽  
Tomoaki Mori
Keyword(s):  
Control System ◽  
Time Delay ◽  
Control Method ◽  
Pressure Control ◽  
Control Element ◽  
System Control ◽  
Hydraulic Pressure ◽  
Time Delay Control ◽  
Delay Control ◽  
Pressure Control System

Hydraulic Pressure Control System Simulation and Performance Test of Lower Extremity Exoskeleton

2012 ◽  
Vol 472-475 ◽  
pp. 2548-2553 ◽  
Author(s):  
Xing Xing Li ◽  
Qing Guo ◽  
Lu Lu Zhang ◽  
Hong Zhou ◽  
Xiang Gang Zhang
Keyword(s):  
Control System ◽  
Lower Extremity ◽  
Performance Test ◽  
Position Control ◽  
Control Method ◽  
Pressure Control ◽  
Frequency Domain Method ◽  
Hydraulic Pressure ◽  
Pressure Control System ◽  
And Performance

On basis of the introduction for the composition of carried-load assistance system and the control mechanism of hydraulic pressure valve for lower extremity exoskeleton, the position control loop is built. The control system is designed by frequency domain method using the PID parameters combined with lead correction network. Simulation results show that the control method can servo the angle of knee joint as human’s natural walk as well as the harmonious of man-machine moment. According to performance test of hydraulic pressure control system, the flow and pressure in piston is analyzed considering different load, the pressure of oil box and movable mode. Test results show that hydraulic pressure valve control system can realize efficiently slow walk carried 30 kilogram load, up and down stairs.

Research Based on Simulink of Hearth Negative Pressure Control System

2012 ◽  
Vol 424-425 ◽  
pp. 962-965
Author(s):  
Le Peng Song ◽  
Huan Huan Chen
Keyword(s):  
Control System ◽  
Negative Pressure ◽  
Control Method ◽  
Pressure Control ◽  
Identification System ◽  
System Control ◽  
Control Effect ◽  
Pressure System ◽  
Pressure Control System ◽  
Furnace Control

Aiming at the furnace control system present situation of complex working conditions are not easy to be understood, this paper hearth negative pressure control system for detailed analysis; Combining the identification system known model and combining with matlab for stability analysis; Set in simulink negative pressure system control model. Choose PI and dynamic feed-forward control method to realize control and realize the dynamic interference effectively suppress, attain better control effect

scholarly journals RENOVATION OF NMIJ'S 5 MN HYDRAULIC AMPLIFICATION TYPE FORCE STANDARD MACHINE

2013 ◽  
Vol 24 ◽  
pp. 1360011
Author(s):  
TOSHIYUKI HAYASHI ◽  
HIROSHI MAEJIMA ◽  
KAZUNAGA UEDA ◽  
MITSUHARU AOKITSU
Keyword(s):  
Control System ◽  
Amplification Factor ◽  
Pressure Gauge ◽  
Pressure Control ◽  
Force Transducer ◽  
Hydraulic Pressure ◽  
Programmable Logic ◽  
Pressure Control System ◽  
Type Pressure ◽  
Measurement Repeatability

The 5 MN hydraulic amplification type force standard machine was renovated by replacing its hydraulic pressure control system, measuring ram and cylinder. For re-evaluation of uncertainty of force amplification factor, diameters of the main and mearsuring rams and cylinders were re-measured. A programmable logic controller with a personal computer is used to control the weight motion and the valve actuation, to monitor various kinds of sensors output, and to record readings of a force transducer under calibration. Fluctuation of calibration force was suppressed by using a quartz-resonance type pressure gauge, and measurement repeatability was improved to some extent. However, there remains room for improvement to further stabilize the calibration force by modifying the measuring ram.

scholarly journals Design of a Pressure Control System With Dead Band and Time Delay

2007 ◽  
Vol 15 (6) ◽  
pp. 1103-1111 ◽  
Author(s):  
Jan Anthonis ◽  
Alexandre Seuret ◽  
Jean-Pierre Richard ◽  
Herman Ramon
Keyword(s):  
Control System ◽  
Time Delay ◽  
Pressure Control ◽  
Dead Band ◽  
Pressure Control System

scholarly journals Sliding Mode Control with a State Predictor for Time Delay Control System

2013 ◽  
pp. 268-271 ◽  
Author(s):  
T. Ishibashi ◽  
K. Kawaguchi ◽  
H. Shibasaki ◽  
R. Tanaka ◽  
T. Murakami ◽  
...  
Keyword(s):  
Control System ◽  
Time Delay ◽  
Sliding Mode Control ◽  
Sliding Mode ◽  
Time Delay Control ◽  
Mode Control ◽  
Delay Control
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