System for controlling speed of vehicle on curved road and method thereof

A system for controlling a speed of a vehicle on a curved road, the system comprising:

• a trace corrector configured to correct a driving trace of a curved road on which the vehicle is to be driven, based on moving locations of feature points in a predetermined direction, when the feature points are acquired from the curved road;
• a curvature calculator configured to calculate a curvature, based on feature points of the corrected driving trace;
• a proper speed calculator configured to calculate a proper speed for each feature point of the driving trace, based on the calculated curvature;
• and
• a curved road goal acceleration calculator configured to determine a speed control point for controlling a speed, based on the calculated proper speed, and to calculate a curved road goal acceleration of the determined speed control point;
• wherein the trace corrector is further configured to
• compare performance indices of calculated curvatures of the driving trace, wherein each performance index indicates a performance of a curvature, and wherein a smaller performance index indicates a superior performance, and
• determine locations of the feature points of the driving trace, by using feature points having relatively small performance indices of the curvatures, based on the comparison.