Patent · US Expired

Method and device for overvoltage protection in dual-voltage vehicle electrical systems

US6894404B2 · kind B2 · utility

3Cited by

3References

11Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Frank Ertzsaenger · Wolfsburg, DE
Torsten Zawade · Peine, DE
Peter Konrad · Old Hickory, US
Klaus Revermann · Schwerinsdorf, DE

Key dates

Filing date	Dec 18, 2000
Grant date	May 17, 2005
Priority date	—
Expiry date	Apr 11, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH02J2310/46
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method and a device are for overvoltage protection in dual-voltage vehicle electrical systems that have a different level of voltage. A switching element is positioned in at least one branch of the vehicle electrical system on the higher voltage level, and a voltmeter unit is located in the vehicle electrical system on the lower voltage level. The switching element is controlled by the voltmeter.

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