Vehicle tampering protection system
AssigneeVolvo Trucks North America, Inc.
InventorsTommy Gustavsson, Michael Blackard, John Bate, Brian Kidd
Life of this patent
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Abstract
A method of providing a vehicle monitoring system for ensuring accurate vehicle milleage readings. A comparison is made between velocity measurements from several sources to detect unauthorized modifications made to a vehicle in an effort to ensure accurate vehicle odometer readings. The vehicle velocity measured on-board is compared with vehicle velocity data signals received from a remote satellite system in light of an allowable tolerance. The system will detect changes in the vehicle such as tire size or tampering with the vehicles on-board measurement devices. The system may communicate out of tolerance conditions to the vehicle operator and the fleet manager.
Claims11
A method of providing a vehicle monitoring system for ensuring accurate vehicle distance travel data comprising the steps of:
- receiving vehicle velocity data signals from a remote satellite system;
- measuring vehicle velocity after a duration of vehicle operation at a substantially stable speed;
- calculating a velocity difference between a vehicle velocity measured on-board and a vehicle velocity as determined from data signals received from a remote satellite system;
- and
- communicating any condition whereby an absolute value of said velocity difference is greater than an allowable tolerance.
A computer readable medium containing instructions for performing a method of providing a vehicle monitoring system for ensuring accurate vehicle distance travel data comprising the steps of:
- receiving vehicle velocity data signals from a remote satellite system;
- measuring vehicle velocity after a duration of vehicle operation at a substantially stable speed;
- calculating a velocity difference between a vehicle velocity measured on-board and a vehicle velocity as determined from data signals received from a remote satellite system;
- and
- communicating any condition whereby an absolute value of said velocity difference is greater than an allowable tolerance.
Dependencies are inferred from the claim text.