Abstract
Vehicle suspension system plays a vital role in diminishing the vibration caused by the road roughness and prevent it from transmitting to the driver and the passenger. The semi-active suspensions contain spring and damping elements with variable properties, which can be changed by an external control. The work presented here is concerned with semi-active damper control for vibration isolation of base disturbances. Numerous control algorithms for semi active system had been suggested in the past, performed experimentally and validated with various computational models.In this work, the 2-DOF quarter car model with semi-active suspension, controlled by skyhook and balance logic with on-off and continuous control algorithms is being studied.The computational models are subjected to various road profiles like single half sine bump, random road disturbanceas typical Indian road scenario. So that the performance can be done as real time inputs. The simulation is being carried out on Matlab or Simulink.
Highlights
India has road networks of 3.314 million kilometres, which is one of the largest road networks in the world, consisting of National Highways, Expressways, State Highways, etc
The vehicle suspension system plays a vital role in diminishing the vibration caused by the road roughness and prevents it from transmitting to the driver and the passenger
A bond graph model of the quarter car vehicle suspension system is developed in SYMBOLS Sonata® software (Mukherjee, Karmakar, & Samantaray, 2014)
Summary
India has road networks of 3.314 million kilometres, which is one of the largest road networks in the world, consisting of National Highways, Expressways, State Highways, etc. Zhang et al (2013) examined the skyhook based semi-active control of full vehicle suspension system incorporated with MR damper. Et al (2015) introduced a modified continuous skyhook strategy along with adaptive gain that directs the semi-active vehicle suspension. They have scrutinized 11 sets of suspension parameters and considered a set of parameters that demonstrated better performance in terms of peak amplitude and settling time. Felps-Dezasse, et al (2017) worked on a fault-tolerant LPV controller for semi-active suspension which can improve ride comfort with damper malfunctions. Gupta et al (2019) worked on hybrid control for semi-active suspension system and found that a combination of skyhook and groundhook gives better results in terms of vibration isolation. The model is subjected to a road input profile of half single sine bump
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