Inventors:
Jack F. Luper - Winston-Salem NC
Assignee:
Eaton Corporation - Cleveland OH
International Classification:
B60Q 100
Abstract:
A system (10) and method for detecting a speed sensor failure in a vehicle equipped with a geographic position determining system such as a GPS system (14). An on-board processor (12) compares vehicle travel distance calculations made using speed sensor (20) information to distance calculations performed using positional information. Discrepancies therebetween are used to indicate errors in the information provided by the speed sensor, or conversely, by the positioning system.