Vehicle on-board electrical network switch for motor vehicles, on-board electrical network for motor vehicles and method for operating an on-board electrical network switch for motor vehicles

US11840182B2 · kind B2 · utility

Assignee

• Auto-Kabel Management GmbH · DE

Inventors

• David Cacciatore · Kempen, DE
• Wacim Tazarine · Erkelenz, DE

Key dates

• Filing date: May 31, 2021
• Grant date: Dec 12, 2023
• Expiry date: May 31, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02J2310/46
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Motor vehicle on-board electrical network switch having at least two inputs for a respective one of at least two on-board power supplies, at least one output for a load of the motor vehicle, at least two switches, a first switch being disposed between a first of the inputs and a common node, and a second switch being disposed between a second of the inputs and the common node, and the output being electrically connected to the common node, wherein the switches are formed as semiconductor switches and are respectively connected with their body diodes in forward direction towards the common node, characterized in that a monitoring circuit monitors a first voltage at the first input and/or a second voltage at the second input and/or a voltage at the common node, and in that the monitoring circuit causes an opening signal for simultaneous opening of both switches depending on an amount of at least one of the monitored voltages.