4-WHEEL STEERING SYSTEM MECHANISM USING DPDT SWITCH

In standard 2 Wheel Steering System, the rear set of wheels are always directed forward and do not play an active role in controlling the steering, thus it results in increased turning radius. While in 4 Wheel Steering System, the rear wheels do play an active role for steering and helps to decrease the turning radius. Vehicle parking and driving in city conditions with heavy traffic in tight spaces, driving would be very difficult due to larger wheelbase and track width. Hence there is a need of a mechanism that can decrease the vehicle’s turning radius. We have developed an innovative 4 wheel steering design to implement a mechanism that can be used for high speed lane changing, crab steer, parallel parking depending upon the conditions of turning and lane changing with respect to front wheels, by using servo motors and direct current motor which are controlled by DPDT switch, thus enhancing the maneuverability of a sedan.