Drive-away blocking device

US6107695A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Helmut Denz · Stuttgart, DE
• Johannes-Dieter Wichterich · Hemmingen, DE
• Klaus Walter · Paderborn, DE
• Frank Kohler · Achern, DE
• Wilfried Burger · Hemmingen, DE
• Bernd Diebold · Rheinau, DE

Key dates

• Filing date: Dec 3, 1997
• Grant date: Aug 22, 2000
• Expiry date: Dec 3, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R25/04
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A drive lock includes a security control unit and an engine control unit that is ready for operation only when the engine control unit has received from the security control unit an encoded release code that matches a predetermined reference code. The engine control unit has storage devices into which it can enter a reference code. On receipt of a release code, it checks on whether a reference code is present in the storage devices. If there is a reference code matching the release code, the engine control unit makes itself ready for operation. If there is no reference code, it accepts the release code into the storage devices as the reference code.