Four Wheel Steering Mechanism Project


Four Wheel Steering Mechanism Project report

Call:9591912372

Four Wheel Steering Mechanism Project

Four Wheel Steering Mechanism Project


Abstract: This project comprises of the Design & Fabrication of a Four Wheel Steering mechanism which relatively is a new technology that improves manoeuvrability in trucks, cars, trailers & other four wheelers. In general two wheel steering vehicles, the rear wheels do not play any role in association with the steering, i.e they follow the path of the front wheels. In a four wheel system the rear wheels are made to turn left & right as per the requirements. To keep the operation as simple as possible a computer controlled mechanism can be incorporated for the rear wheels. The rear wheels can be controlled in the following fundamental ways:At slow speeds the rear wheels turn in the opposite direction of the front wheels. This can reduce the turning radius approximately by 21%.At faster speeds on the highway, the rear wheels are made to turn in the same direction of the front wheels. This improves the lane changing manoeuvrability & is particularly beneficial for vehicle towing.Out of the various possible mechanisms, Rack & Pinion type is being presented in this project.At times when a vehicle is in a congested or a narrow area everyone would want to have a better turning response from the vehicle or want the vehicle to move sidewards without much or without any forward movement. Here comes the application of a Four wheel steered vehicle.It should not be mistakento afour wheel drive in which all four wheels of a vehicle are powered. Here, the rear wheels are also bought into action as they are made to engage their movement in accordance to the front wheels in the directions required. This makes the vehiclebe more precisely controlledespecially during cornering, parking, or when we get into a narrow area.The main ideology behind this mechanism is that the vehicle requires less driver input for any steering maneuver when all four wheels are in action. The entire vehicle is made to move in a direction rather than the rear wheels half attempting to catch u with the front ones. The vehicle is made to respond even quicker to the steering input as the lag time of the rear wheel is eliminated here.However, few cars like Honda Prelude, Nissan Skyline GT-R are available with four wheel steering having their rear wheels steered up to 2 to 3 degrees only as their main aim was to assist the front wheels