Method and device for safeguarding against manipulation of an odometer or a trip recorder

US6519516B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Andreas Pfaeffle · Löwenstein, DE
• Martin Grosser · Stuttgart, DE

Key dates

• Filing date: Dec 28, 2000
• Grant date: Feb 11, 2003
• Expiry date: Feb 21, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G07C5/08
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method of safeguarding against manipulation of an odometer or trip recorder in a motor vehicle, in which the instantaneous odometer reading is determined when the engine of the motor vehicle is stopped and that odometer reading is stored in an on-board control unit, in particular an engine control unit. Moreover, the instantaneous odometer reading of the odometer on restarting the engine is determined, and the odometer reading found on restarting the engine is compared with the stored odometer reading. Suitable measures are initiated for the case when the odometer reading found on restarting the engine and the stored odometer reading do not match.