Comparison between a Model-free and Model-based Controller of an Automotive Semi-active Suspension System * *
作者： Juan C. Tudón-Martínez , Ruben Morales-Menendez , Ricardo Ramírez-Mendoza , Olivier Sename , Luc Dugard
DOI: 10.3182/20130204-3-FR-2033.00039
关键词: Automotive industry 、 Open-loop controller 、 Actuator 、 Control theory 、 Truck 、 Automotive engineering 、 Suspension (vehicle) 、 Deflection (engineering) 、 Chassis 、 Damper 、 Engineering
摘要: A comparison between two control strategies of automotive semi-active suspension systems is presented by using a pick-up truck model in CarSim™ the controllers are based on different frameworks. The Linear Parameter Varying (LPV) controller, considered as model-based includes constraints damper scheduling parameters; while, Frequency Estimation-Based (FEB) controller only requires measurements wheel-station for defining damping force according to objective controls, i.e. free vehicle and actuator model. Each has an independent and, experimental data used MR each quarter vehicle. running test road ISO 8606 compare performance comfort holding both controllers. Simulation results show that LPV approach best performance; with passive system, pitch angle reduced 36% vertical chassis displacement 24%. However, FEB better holding: lower deflection tire compression 30%.
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