Patent · US Active

Device and method for detecting a polarity reversal on a low voltage side of a DC voltage transformer in a dual-voltage vehicle electrical system

US9287704B2 · kind B2 · utility

1Cited by

7References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Beqir Pushkolli · Ludwigsburg, DE
Thomas Knorpp · Freiberg, DE
Michael Ruffer · Ludwigsburg, DE
Alexander Scheidle · Karlsruhe, DE

Key dates

Filing date	Nov 12, 2010
Grant date	Mar 15, 2016
Priority date	—
Expiry date	Jan 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A device and a method for detecting a polarity reversal on a low voltage side of a DC voltage transformer in a dual-voltage vehicle electrical system, particularly in a motor vehicle. A current flow is enabled, in this instance, in a connecting line on the low voltage side of the DC voltage transformer by a controllable switching element, a current is detected in a connecting line on the low voltage side of the DC voltage transformer, with the aid of a current sensor system, the direction of the detected current is evaluated by an evaluation unit and a polarity reversal is detected if the direction of the detected current differs from an expected current direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.