Improved differential evolution LQG control of active suspension

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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Probe into Necessity of Active Suspension Based on LQG Control

Physics Procedia ◽

10.1016/j.phpro.2012.03.180 ◽

2012 ◽

Vol 25 ◽

pp. 932-938 ◽

Cited By ~ 19

Author(s):

Shian Chen ◽

Ren He ◽

Hongguang Liu ◽

Ming Yao

Keyword(s):

Active Suspension ◽

Lqg Control

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

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C ◽

10.1299/kikaic.61.2320 ◽

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

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LQG-control of active suspension considering vehicle body flexibility

Proceedings of International Conference on Control Applications ◽

10.1109/cca.1995.555657 ◽

2002 ◽

Cited By ~ 2

Author(s):

E.H. Tamai ◽

J. Sotelo

Keyword(s):

Active Suspension ◽

Vehicle Body ◽

Lqg Control

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Optimal Design of Active Suspension Based on LQG Control without Road Input Signal

2011 Fourth International Conference on Intelligent Computation Technology and Automation ◽

10.1109/icicta.2011.127 ◽

2011 ◽

Cited By ~ 1

Author(s):

Shian Chen ◽

Hang Zhou ◽

Hongguang Liu ◽

Ming Yao

Keyword(s):

Optimal Design ◽

Input Signal ◽

Active Suspension ◽

Lqg Control

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Robust Stability of Active Suspension LQG Control for Railway Vehicle with Parametric Fluctuations

2018 International Conference on Information and Communication Technology Robotics (ICT-ROBOT) ◽

10.1109/ict-robot.2018.8549872 ◽

2018 ◽

Author(s):

Kaushalendra K Khadanga ◽

Hee Hyol Lee

Keyword(s):

Robust Stability ◽

Active Suspension ◽

Railway Vehicle ◽

Lqg Control ◽

Parametric Fluctuations

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Study on Control Technology for Vehicle Active Suspension

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.143-144.69 ◽

2011 ◽

Vol 143-144 ◽

pp. 69-73

Author(s):

Xiao Bin Fan ◽

Bing Xu Fan ◽

Hui Gang Wang

Keyword(s):

Pid Control ◽

Ride Comfort ◽

Design Method ◽

Control Design ◽

Active Suspension ◽

Fuzzy Pid ◽

Linear Quadratic ◽

Fuzzy Pid Control ◽

Suspension Control ◽

Lqg Control

An active suspension system has been proposed to improve the ride comfort. A quarter-car 2 degree-of-freedom system is designed and constructed on the basis of the concept of a four-wheel independent suspension. The aim of the work described in the paper was to illustrate the application of fuzzy Proportional Integration Derivative (PID) technique and Linear Quadratic Guass (LQG) control to the active suspension control system. The paper describes also the model and controller used in the study and discusses the vehicle response results obtained from a range of road input simulations. This work describes some comparison of active suspension fuzzy PID control and LQG control design method by MATLAB simulations. Simulation results show that the LQG controller achieved better performances in all carried-out investigations.

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