A system and method for performing auto-localization of a tire pressure monitoring sensor disposed with a vehicle wheel using a confidence interval analysis and a directional change of the wheel

摘要

A method of determining a directional change of a vehicle, comprising the steps of: managing a sliding window of ABS data indicative of an ABS tooth number and detecting a relevant sliding window of ABS data at the predetermined one measurement point; Storing the sliding window of the ABS data indicative of an ABS tooth in a buffer memory; Monitoring the ABS data and detecting a valid stop event which causes the rate of change of the ABS number of teeth to decrease substantially to zero and monitoring the ABS data and detecting a valid motion event causing the rate of change of the ABS number of teeth to decrease Substantially increased from zero. The method further includes steps of determining a pre-stop phase relationship between at least two wheels based on the ABS number of teeth stored in the buffer memory immediately prior to the valid stop event; Determining a post-start phase relationship between at least two wheels based on the ABS number of teeth stored in the buffer memory immediately following the valid motion event; and correlating the pre-stop-phase relationship and the post-start phase relationship to determine a direction change and a confidence level.