METHOD FOR DETECTING RUMBLE STRIPS ON ROADWAYS

摘要

A method and system for detecting the existence of rumble strips on a roadway by a vehicle. Wheel speed data is obtained from a wheel speed sensor, and frequency-based analysis is then performed on the wheel speed data. The presence of a rumble strip can then be detected based on the outcome of the frequency-based analysis. The wheel speed data can be modified before conversion to the frequency domain to reduce wheel-induced cyclic variations in wheel speed. The frequency-based analysis can use an FFT and a peak detection method that analyzes one or more peaks in the FFT data to determine if any are indicative of the presence of a rumble strip. The method can be carried out automatically in real time and used to alert the driver of the detection of the rumble strip.