Patent ID: 7782182
Filing Date: 2010-08-24
Classification: G01P

Abstract:
1. A method for demonstrating a discrepancy in the speedometer in a vehicle, where a speed according to said vehicle speedometer is compared with a vehicle speed information from a second measuring device, and for adjusting the vehicle speedometer to a corrected speed based on a measured speed discrepancy, comprising and where said vehicle has a unique ID, the steps: a) measuring the speed of the vehicle with a speed measuring device that is external of and not physically coupled to any part of said vehicle, b) continuously sending said measured information about speed from an external measuring device to a receiver in the vehicle, c) comparing said information of speed received from the external measuring device with the information of speed according to the speedometer of the vehicle, d) making available said information about any speed discrepancy to a vehicle user, and adjusting the speedometer to correct for said any discrepancy, e) using the information about said discrepancy to calculate wear on tires of said vehicle by comparing the discrepancy of the speedometer, and f) carrying out a calculation of said discrepancy only when said unique ID associated with said vehicle, agrees with an ID transmitted from said external measuring device.