Method for monitoring an on-board power supply of a motor vehicle

US12210043B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Lars Braun · Stuttgart, DE
• Manuel Eder · Dinkelsbühl, DE
• Michael Muerken · Karlsruhe, DE

Key dates

• Filing date: Mar 24, 2023
• Grant date: Jan 28, 2025
• Expiry date: Jul 31, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R19/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for monitoring an on-board power supply of a motor vehicle. A power distributor is provided, via which a supply voltage is supplied to a safety-relevant consumer and via which non-safety-relevant consumers are supplied. A disconnection of consumers takes place if at least one measure of the voltage applied at least to the safety-relevant consumer reaches a limit value. After disconnecting consumers, the measure of the voltage applied to the safety-relevant consumer is ascertained. The measure of the voltage applied to the respective safety-relevant consumer is respectively compared to a further limit value for a sufficient voltage. From the disconnected consumers, at least one consumer to be connected is selected, which is connected if the limit value is respectively reached at the safety-relevant consumers. The consumer to be connected is selected as a function of a connection measure such that the connection measure is not exceeded.