STEERING ANGLE CORRECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a steering angle correction device, capable of providing micro-coefficients, in such a way that the differential coefficients for the corrected steering angle are continuous at both ends of a dead zone. SOLUTION: Points AL-ARof a predetermined size, having different±signs, are set on the abscissa axis around an origin O as a first steering angle section R1(dead zone). In a positive side second steering angle section R2Ron the plus side outer side of the first steering section R1, a straight line IRis set to start from a point BRslightly rightward above the point ARto have one-to-one relation between variation of a steering angleθand variation of a corrected steering angleθ', which means the gradient is +1. In the middle between the point ARand the point BR, a predetermined point CRwithθ' positive is set leftward of a line extended from the straight line IRover the point BRtoward the abscissa axis, and below a straight line connecting the point ARto the point BR. Spline interpolation is thus carried out to form a line through the points AR, CR, and BR, to be straight at both ends. Similarly, in a negative side second steering angle section R2Lon the outer side of the first steering angle section R1, a point-symmetric line is set with the origin O as a center. COPYRIGHT: (C)2009,JPO&INPIT