Device for decoupling and protection from compensation currents in a redundant system for autonomous driving

US11872997B2 · kind B2 · utility

Assignee

• KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH · DE

Inventors

• Felix Hoos · Mögglingen, DE
• Thorsten Beyse · Dettingen, DE
• Dieter Winz · Rottenburg am Neckar, DE
• Frank Scholl · Schwieberdingen, DE
• Kai Becker · Schwieberdingen, DE
• Guenter Herrmann · Vellmar, DE
• Christian Kaufmann · Sindelfingen, DE
• Alexander Rammert · Kornwestheim, DE
• Michael Belling · Renningen, DE

Key dates

• Filing date: Aug 26, 2019
• Grant date: Jan 16, 2024
• Expiry date: Dec 29, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02M3/07
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A device for decoupling and/or protecting against compensation currents when at least one electric actuator is used jointly by a plurality of independently voltage-supplied control unit devices in redundant systems for autonomous driving. The electric actuator has, in each case, a common connection, via which the electric actuator can be coupled and switched to a common connection of other electrical actuators, and has at least one dedicated connection via which the at least one electric actuator can be individually supplied with current. A number of switching devices corresponding to the common connection and the number of dedicated connections of all the electric actuators is arranged to apply or not apply a switched current in the at least one electric actuator. Provided is at least one current flow blocking device configured to prevent an unwanted current flow to a non-active electronic control unit of the first and second control unit devices.