STEERING GEAR

摘要

PURPOSE:To stably control the direction of a vehicle with high follow-up prop erty to the operation of steering wheel over a wide range from low vehicle speed to high vehicle speed in a steering gear for controlling the azimuth of the advancing vehicle with the steering angle of the steering wheel. CONSTITUTION:An indicating angle theta inputted from a steering wheel by a steering indicating angle detecting means 4 is detected to obtain a desired azimuth value phiM through a steering indicating angle.azimuth corresponding means 11. The azimuth deviation E of the desired azimuth valve phiM from the present orientation phi of advancing vehicle is supplied to a steering angle specifying means 14 which is set so as to reduce a steering angle delta outputted along with the increase of vehicle speed V and increase the increase rate of a steering angle along with the increase of the azimuth deviation E in relation between the azimuth deviation E and steering angle delta. The steering angle deltaoutput is supplied to a steering mechanism driving means 16 through a low pass filter means 15 to steer wheels through a steering mechanism 8 for controlling the direction of the vehicle.