scholarly journals Application of Oil-Hydraulic Actuator for Active Suspension of Railway Vehicle. Adoption of LQG Control Law to a Scale Model on a Test Apparatus.

1995 ◽  
Vol 61 (586) ◽  
pp. 2320-2327
Author(s):  
Ryohei Shimamune ◽  
Katsuya Tanifuji ◽  
Toshio Sakaue
Keyword(s):  
Active Suspension ◽  
Scale Model ◽  
Railway Vehicle ◽  
Control Law ◽  
Test Apparatus ◽  
Hydraulic Actuator ◽  
Lqg Control

scholarly journals 141 Influence of Vertical Semi-Active Suspension on Running Stability of Railway Vehicle

2003 ◽  
Vol 2003 (0) ◽  
pp. _141-1_-_141-6_
Author(s):  
Yoshiki SUGAHARA ◽  
Tadao TAKIGAMI ◽  
Daisuke YAMAMOTO
Keyword(s):  
Active Suspension ◽  
Railway Vehicle

PWM Design for Active Suspension without External Energy Supply Based on LQG Control

2012 ◽  
Vol 268-270 ◽  
pp. 1478-1481
Author(s):  
Shian Chen ◽  
Xuan Li ◽  
Sheng Wang ◽  
Jian Lian Zhao ◽  
Ze He Tang
Keyword(s):  
Energy Flow ◽  
Energy Supply ◽  
Control Method ◽  
Active Suspension ◽  
Flow Equation ◽  
External Energy ◽  
Passive Suspension ◽  
Quadratic Performance Index ◽  
Lqg Control ◽  
Quadratic Performance

A PWM controller is designed for the active suspension without external energy supply (ASWEES) using the LQG control method. Based on the quarter-vehicle ASWEES model, Energy flow equation between the suspension and the accumulator with a 2 kW load was deduced and a PWM controller was designed. When 200Hz solenoid valves were adopted, the carrier frequency and series value of the carrier signal were set as 40 and 5 respectively. Simulation results show the suspension quadratic performance index of ASWEES decreases 24.97% than that of the passive suspension. The passive suspension consumes 2.211kW power, but ASWEES reclaims energy of 2 kW.

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