DocumentCode :
634081
Title :
Optimum synthesis of sensory layout in active suspension based on linear observer
Author :
Ramezaney, M. Ali Reza ; Fathi, Ehsan ; Ansarey, M. S. M. Mehdi
Author_Institution :
Electr. Dept., Univ. of Sci. & Technol., Tehran, Iran
fYear :
2013
fDate :
14-16 May 2013
Firstpage :
1
Lastpage :
6
Abstract :
The dynamic response of a vehicle can be improved considerably by an active suspension, so it enjoys a growing popularity within urban cars. The vehicle vibrational models typically include many degrees of freedom, therefore the implementation of model-based feedback (feeding of state variables) control strategies in active suspension involves abundant measurements which lead to a big challenge. The observation technique is a conventional method employed to estimate the state variables and to reduce the number of output variables. As the number of measurements and corresponding sensors decrease, cost imposed to the system will decrease and the complexity of hardware implementation is also reduced. The purpose of this research is to investigate different output configurations and to determine the optimal sensory layout to achieve an ideal observer. Finally, a case study consisting of a four state quarter car model and two types of traditional sensors (acceleration and relative displacement) has been conducted. The presented algorithm takes a set of predefined sensors as input and analyses its various combinations. For each combination which forms a specific arrangement of outputs, the design metric is calculated through simulating assembled model of vehicle-controller-observer. This metric is a weighted sum of measure variables norm like passenger acceleration and estimation error.
Keywords :
automobiles; controllers; dynamic response; feedback; observers; sensors; suspensions (mechanical components); vehicle dynamics; acceleration sensors; active suspension; degrees of freedom; estimation error; hardware implementation complexity; linear observer; model-based feedback control strategies; observation technique; optimum sensory layout synthesis; output variables; passenger acceleration; relative displacement sensors; state quarter car model; state variables; urban cars; vehicle dynamic response; vehicle vibrational models; vehicle-controller-observer; Acceleration; Layout; Observers; Sensors; Suspensions; Vehicle dynamics; Vehicles; Active Vibration Control; State Observer; Suspension System; Vehicle Dynamics;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Engineering (ICEE), 2013 21st Iranian Conference on
Conference_Location :
Mashhad
Type :
conf
DOI :
10.1109/IranianCEE.2013.6599616
Filename :
6599616
Link To Document :
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