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Volume 5, Issue 2(Suppl) Adv Automob Eng 2016
ISSN: 2167-7670, AAE an open access journal
Page 33
Notes:
Automobile 2016
December 01-02, 2016
conferenceseries.com
Automobile Engineering
December 01-02, 2016 Valencia, Spain
2nd International Conference and Exhibition on
Variable caster steering in vehicle dynamics
Dai Vo Quoc
RMIT University, Australia
When a vehicle is cornering, its wheels usually lean outwards from the center of rotation. This effect decreases lateral force and
eventually limits tyre performance, especially when the tyre is working under a high side slip regime. This paper proposes a
strategy for varying caster of the front steerable wheels to counter the effect. The homogeneous transformation is utilized to develop
the kinematics of a road steering wheel which includes the dynamic camber during the cornering manoeuvre. A variable caster
scheme is proposed based on the analysis of the dynamic camber. A roll vehicle model and a camber-included tyre force model are
constructed; and MATLAB/Simulink is used to simulate the dynamic behavior of the vehicle with and without the variable caster. The
results of step-steer, ramp-steer and swept-steer simulations show that the outwards leaning effect of the steering wheels is reduced
significantly, leading to an improvement in lateral acceleration, and yaw rate capacities without compromising with other handling
characteristics.
Biography
Dai Vo Quoc is currently working toward his PhD degree in Automotive Engineering at School of Engineering, RMIT University, Australia. His research interests include
kinematics, dynamics of vehicle systems; dynamics, ride, handling and stability of vehicles. He has published and written 5 papers and book chapters.
Dai Vo Quoc, Adv Automob Eng 2016, 5:2(Suppl)