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Modelling and simulation of semi-active suspension system for passenger vehicle
M. Farid Aladdin1, Jasdeep Singh2.
Vehicle suspension system plays important role in maintaining constant contact
of the wheels with the ground, as well as isolating the occupants from vibrations
from uneven road surfaces such as bumps, humps and potholes. The most
common suspension system in passenger vehicle today is the passive type
suspension which operating without providing any external energy to the system,
hence it is called passive. The research advancement leads to the invention of
semi-active and active suspension which requires external source for control. The
objective of this paper is to evaluate the performance of passive and semi-active
vehicle suspension system with various control strategy and recommend a
modified control strategy for vehicle semi-active suspension system. The vehicle
quarter model was used for suspension mathematical modelling and the
suspension system performance of sprung mass acceleration and un-sprung mass
displacement were simulated by considering various semi-active control strategy.
Three control strategies of Sky-hook, Ground-hook and Modified sky-hook
control were applied to the simulation. For Sky-hook and Ground-hook, the gain
variable was varied by considering the values of 1000, 3000 and 5000. For
modified Sky-hook model, the gain of 3000 were considered by changing the
control variable values to 0, 0.25, 0.5, 0.75 and 1. The findings suggest that the
semi-active suspension outperforms a passive suspension system. The Sky-hook
control strategy was more desirable towards increasing comfort at the sacrifice
of handling performance, whereas the Ground-hook control strategy increases the
handling performance at the sacrifice of comfort. The modified skyhook control
strategy combines both of the control logics into one and the gain value of 0.5
was found to produce the best results both in increasing the comfort and the
suspension handling performance.
Affiliation:
- Taylor's University, Malaysia
- Taylor's University, Malaysia
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Indexation |
Indexed by |
MyJurnal (2019) |
H-Index
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0 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus (SCImago Journal Rankings 2016) |
Impact Factor
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- |
Rank |
Q3 (Engineering (miscellaneous)) |
Additional Information |
0.193 (SJR) |
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