14-11-2014, 02:57 PM
Abstracts: Variable gear ratio steering describes a steering system for a vehicle in which the relationship between the driver’s steer inputs and the angle of the steered road wheels. The active steering system utilizes a double planetary gear system located at the base of the steering column to facilitate driver independent steering of the front wheels and it is the main component of the system. The important parameters of the system are gear ratio, yaw stability. The variable gear ratio steering device influences on a steering system of the vehicle and varies a ratio of a steering angle of steerable road wheels to a steering wheel angle by driving an electric motor in accordance with a vehicle speed. So by making suitably designs and drawings we are going to make this system. If an error occurs in electronics then the motor operation shuts down automatically and works normally.