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Passenger Car Active Suspension System Model for Better Dynamic Characteristics

  • Mohd AveshEmail author
  • Rajeev Srivastava
Short Communication
  • 15 Downloads

Abstract

The technological investigations to a light passenger car have been carried out in order to improve the comfort and safety features by the implementation of an active suspension system. A fuzzy logic control-based active suspension system is proposed for the fuel-efficient small passenger cars to fulfil the design upgradation requirements. The proposed design comprised of hydraulically powered actuators is installed at each of the car wheels between sprung and unsprung mass to compensate the ground forces in order to resolve the instability and comfort issues. The dynamic analysis figures out the significant improvement of 12% in comfort and 11.53% in the car stability.

Keywords

Active suspension system Fuzzy logic controller Road vehicle Comfort–safety Car model 
Ms

vehicle body mass

Iθs,Iφs

mass moment of inertia in longitudinal and lateral directions, respectively

muf, mur

unsprung mass of front and rear wheel, respectively

Fss, Fsd

elastic and damping force of suspension system, respectively

Fts, Ftd

elastic and damping force of tires, respectively

Zs

sprung mass displacement

θ, ϕ

pitch angle and roll angle

zu

unsprung mass displacement

zr

road inputs to the wheel

a, b

distance of the suspension mass centre to the front and rear end, respectively

wf, wr

vehicle track at front and rear side, respectively

Notes

Acknowledgements

The authors are grateful to the Mechanical Engineering Department of Motilal Nehru National Institute of Technology Allahabad and highly acknowledge the supports extended in the fabrication of test set-up.

References

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Copyright information

© The National Academy of Sciences, India 2019

Authors and Affiliations

  1. 1.Mechanical Engineering DepartmentMotilal Nehru National Institute of Technology AllahabadAllahabadIndia

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