Patent · US Active

High-voltage motor vehicle electrical system

US10965146B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignee

Eberspächer Catem GmbH & Co. · DE

Inventors

Dimitar Tchobanov · Nuremberg, DE
Markus Billmann · Emskirchen, DE
Eugen Riefert · Karlsruhe, DE
Christof Lausser · Bad Bergzabern, DE
Ulrich Sutter · Landau in der Pfalz, DE

Key dates

Filing date	Sep 21, 2017
Grant date	Mar 30, 2021
Priority date	—
Expiry date	Nov 22, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T90/40
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The present patent application relates to a high-voltage motor vehicle electrical system comprising an electrical heating device and at least on further consumer during switching on of which, undesired electromagnetic oscillations may occur in the electrical system. According to the invention, these are suppressed by initially switching on the heating device, before the further consumer is switched on. Switching on the heating device changes the complete impedance of the electrical system such that a resonant enhancement of the interference oscillations is prevented. Preferably, the heating device is switched on only as shortly as possible (only during the switching on process of the further consumer) in order to minimize an undesired heating.

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