Data communication device for a vehicle towed by a motor vehicle

US5900803A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Werner Politz · Leonberg, DE
• Wilhelm Grabow · Nordstemmen, DE
• Wolfgang Steiger · Stuttgart, DE
• Rainer Schmedding · Bad Salzdetfurth, DE

Key dates

• Filing date: May 21, 1997
• Grant date: May 4, 1999
• Expiry date: May 21, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G07C5/008
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The data communication device is designed for a towed vehicle having wheels rear lights, brake lights, turn signal lights and an anti-lock braking system, that is drawn by a motor vehicle. This data communication device includes an electrical cable connection (19) for supplying electrical power from the towing vehicle to the rear, brake and turn signal lights; an electrical pulse generator and electrical power supply circuit (14) for producing direct current from wheel motion of the towed vehicle; a rechargeable battery (15) to provide a supplementary direct current in addition to this direct current, when necessary; a controller (10) for the anti-lock braking system including a data producing unit (7) for producing data including mileage covered by the towed vehicle and a wireless transponder (6) operating the gigahertz range for transmission and reception of data from the data producing unit to and from an external data transmitting and receiving station (1).