Device for verifying disturbances in signal transmission in motor vehicles

US5463373A · kind A · utility

Assignee

• Mannesmann Kienzle GmbH · DE

Inventors

• Gerhard Widl · Michelstadt, DE
• Manfred Fichter · Königsfeld, DE

Key dates

• Filing date: Jan 26, 1993
• Grant date: Oct 31, 1995
• Expiry date: Jan 26, 2013

Classification

• Technology area (CPC G): Physics
• CPC primary: G07B13/02
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A device is disclosed which can detect and document tampering in the signal transmission path between speed measurement and/or mileage counting devices and the speed transmitters which are associated with these devices using the simplest possible means and so as to be suitable for large-scale series manufacture. The device provides that at least one movement transmitter, which senses forces which are typical of driving, is arranged inside the respective measurement device, and that an evaluating circuit is also provided, which delivers a signal which controls a recording arrangement when signals of a speed transmitter do not correspond with those of the movement transmitter.