- SYSTEM AND METHOD FOR PERFORMING AUTO-LOCATION OF A TIRE PRESSURE MONITORING SENSOR ARRANGED WITH A VEHICLE WHEEL USING CONFIDENCE INTERVAL ANALYSIS AND CHANGE OF WHEEL DIRECTION

摘要

A method for determining a change in vehicle direction includes maintaining a rolling window of ABS data indicative of an ABS tooth count and capturing the relevant rolling window of ABS data at one predetermined measurement point; storing a rolling window of ABS data indicating the ABS value in a buffer; monitoring the ABS data and detecting a valid stop event that causes the rate of change of the ABS tooth count to substantially decrease to zero; and monitoring the ABS data and detecting a valid movement event that causes the rate of change of the ABS tooth count to increase from substantially zero. The method also includes determining a presto phase relationship between the at least two wheels based on an ABS tooth count stored in a buffer immediately prior to the valid stop event; determining a post-start phase relationship between the at least two wheels based on the ABS tooth count stored in the buffer immediately after the valid movement event; and correlating the pre-stop phase relationship and the post-start phase relationship to determine direction change and confidence level.