System and method for detecting road surface conditions

摘要

A system for identifying road surface conditions includes a road surface measurement sensor attached to a vehicle and configured to generate a measurement signal for a road surface condition, and a controller. The controller is configured to digitalize the measurement signal received from the road surface measurement sensor, calculate a curvature pattern for the road surface condition based on the digitalized measurement signal, and compare the calculated curvature pattern with a pre-stored curvature pattern to identify the road surface condition.

主权项

1. A system for detecting road surface conditions, the system comprising:
a road surface measurement sensor attached to a vehicle and configured to generate a measurement signal for a road surface condition; and a controller configured to digitalize the received measurement signal, convert the digitalized measurement signal into a coordinate value, extract a vector value based on the coordinate value, and calculate a curvature for the road surface condition using the vector value, calculate the curvature pattern for the road surface condition based on the calculated curvature, compare the calculated curvature pattern with the pre-stored curvature pattern to accumulate the number of times for a threshold period of time when the two curvature patterns match each other, and identify the road surface condition when the cumulative number of times is more than a threshold value, wherein the threshold value is inversely proportional to a velocity of the vehicle.