Analysis of Turning Radius of Truck to Describe Yaw-Moment Control
Keywords:
Analysis, Turning radius, rear wheel turn, truck turn, yaw-moment, four wheel steering.Abstract
This paper presents an investigation into the turning performance of a vehicle implementing direct yaw-moment control to effectively reduce the turning radius. The proposed approach involves turning the rear wheels in the opposite direction of the truck, resulting in a yaw-moment around the vehicle's centre of gravity. This yaw-moment enables the vehicle to execute tight turns. In comparison to traditional Ackermansteered vehicles, the differential-steered method offers advantages due to its simpler structure. Based on the calculation, a comparative analysis was conducted between the 4WS (fourwheel steering) and 2WS (two-wheel steering) configurations of the Eicher Pro 3015 truck. The calculated turning radius for the 4WS configuration is 5.01 meters, while the standard 2WS configuration has a turning radius of 8.659 meters. This indicates that the 4WS configuration allows for a smaller turning radius compared to the 2WS configuration, enabling the truck to maneuver more easily in confined spaces and navigate tighter turns. 2WS configuration has an angle of 21.9 degrees. This signifies that the 4WS configuration provides a reduced angle of turning, allowing the truck to execute sharper turns and enhance manoeuvrability. As per the comparative analysis of the turning radius and angle of turning, it can be concluded that the 4WS configuration of the Eicher Pro 3015 truck offers superior maneuverability compared to the standard 2WS configuration. The 4WS configuration provides a smaller turning radius and a reduced angle of turning, indicating enhanced agility and improved performance in various operating conditions. This makes it more suitable for applications that require precise and efficient navigation, such as tight urban areas or construction sites.
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