IJIRST (International Journal for Innovative Research in Science & Technology)ISSN (online) : 2349-6010

 International Journal for Innovative Research in Science & Technology

Theoretical Analysis of Centrally Autonomous Radially Adjustable Zero Turning 4 Wheel Steering System


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International Journal for Innovative Research in Science & Technology
Volume 2 Issue - 9
Year of Publication : 2016
Authors : Mitul Vaghela ; Yogesh Parmar; Vishal Rathod ; Kathan Kapdi; Parikshit Patel

BibTeX:

@article{IJIRSTV2I9051,
     title={Theoretical Analysis of Centrally Autonomous Radially Adjustable Zero Turning 4 Wheel Steering System},
     author={Mitul Vaghela , Yogesh Parmar, Vishal Rathod , Kathan Kapdi and Parikshit Patel },
     journal={International Journal for Innovative Research in Science & Technology},
     volume={2},
     number={9},
     pages={204--210},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV2I9051.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}



Abstract:

Nowadays, the every vehicle existed mostly still using the two wheel steering system to control the movement of the vehicle whether it is front wheel drive, rear wheel drive or all-wheel drive. But the efficiency of the two wheel steering vehicle is proven to be low due to the problems such as “Understeer/Oversteer”. If a car could automatically compensate for an understeer/oversteer problem, the driver would enjoy nearly neutral steering under varying operating conditions. In situations like low speed cornering, vehicle parking and driving in city conditions with heavy traffic in tight spaces, high speed lane changing would be very difficult due to vehicle’s larger wheelbase and track width which brings high inertia and traction into consideration. Hence there is a requirement of a mechanism which result in less turning radius and it can be achieved by implementing four-wheel steering mechanism instead of regular two-wheel steering. In this paper, mechanical modelling of four wheels steered vehicle is produced which is optimally controlled during a lane change maneuver in three type of condition which is low speed maneuver, medium speed maneuver and high speed maneuver. For parking and low-speed maneuvers, the rear Wheel steer in the opposite direction of the front wheels, allowing much sharper turns. At higher speeds, the rest wheels steer in the same direction as the front wheels. The result may be more stability and less body lean during fast lane changes and turns because the front wheels don’t have to drag non-steering rear wheels onto the path.


Keywords:

Steering System, Four-wheel Steering, zero Turning, Automobile


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