Browse Publications Technical Papers 2002-01-1582
2002-05-07

A New Approach to Control A Semi-Active Suspension Using Different Optimal Strategies 2002-01-1582

A new approach to control a simple quarter car model using semi-active controller is presented. In this regard, different optimal control strategies are proposed and compared with each other. Linear Quadratic Regulator (LQR) and Dynamic Programming (DP) optimal control strategies are compared with each other as semi active controllers, while LQR, DP and Calculus of Variation (CV) methods are examined as active controller and compared with semi active strategies. The semi-active strategies are based on correspond active system, which is considered to be turned on whenever correspond active system tries to dissipate energy from suspension system. In the other case that correspond active system should inject energy into the suspension system, semi active controller is turned off. The dynamic model is a simple quarter car model (SQC). A rack and pinion with a frictional disk clutch is proposed as the mechanism of system.
Simulation results show that gain variable controllers could yield much better response in comparison with constant gain method (LQR). But the speed of operation of LQR is more than gain variable methods due to its constant gains.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Mechanism and Simulation of Self-Excited Vibration in a Vehicle Transmission

2000-01-0836

View Details

TECHNICAL PAPER

Slip and Lock up Control of Torque Converter clutch at Launching Conditions and Its Temperature

2013-01-0357

View Details

TECHNICAL PAPER

Hysteresis Effects on Driveline Torsional Vibrations

951293

View Details

X