Patent ID: 8103404
Filing Date: 2012-01-24
Classification: G01C,G01S

Abstract:
1. A system for odometer calibration for a motor vehicle comprising: a first source of speed data providing first speed data for the motor vehicle for a duration of operation of the motor vehicle; a second source of speed data providing second speed data for the motor vehicle for a portion of the duration of operation of the motor vehicle; a control module that computes an overall average speed based on the first speed data and the duration of operation of the motor vehicle, computes an intermittent average speed based on the first speed data and the portion of the duration of operation of the motor vehicle and computes a second average speed based on the second speed data and the portion of the duration of operation of the motor vehicle; and wherein based on the overall average speed and a ratio of the second average second speed to the intermittent average speed the control module computes corrected odometer data; wherein the second source of speed data comprises a global positioning system controller onboard the motor vehicle that communicates with a global positioning system over a first communications link, which is an intermittent link.