FOUR WHEEL STEERING SYSTEM WITH MOVABLE HEAD LIGHTS BY USING RACK AND PINION MECHANISM

摘要

Now a days, many researchers put their efforts on four Wheel steering mechanism, implementation of this mechanism is needed in situations like low speed cornering, vehicle parking and driving at heavy traffic, tight spaces, where driving would be very difficult due to vehicle's larger wheelbase and track width. For avoiding this problem, we need a mechanism with less turning radius by implementing four wheel steering mechanism instead of two wheel steering mechanism. In a regular standard two wheel steering system, rear wheels are directed forward and do not play role in controlling the steering. In case of four wheel steering system, rear wheels play an active role for steering for guiding at any speed. If the vehicle have larger wheel base and track width in some cars, the driving would be very difficult in different situations like cornering at low speeds, parking the vehicle and city driving conditions with heavy traffic in very tight places. So, we require a mechanism, which is having less turning radius. This work also includes the hardware of movable headlight system for motor vehicles. For all the vehicles, head light control system is needed, which help the head light to rotate right and left independently, and keep the beam as parallel to the curved road to provide better visibility to the driver at night time. In the present work, we use rack and pinion mechanism to drive the optical axes, on which head lights are mounted. This result that, when tie rod arms are moving with steering arm, then it gives a predefined motion to the wheels along with head lights. In this work, for driving the optical axis, we use rack and pinion arrangement, when steering arm, tie rod arm is moved that give motion to the wheels as well as head lights.