The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 06, 2026

Filed:

Sep. 15, 2022
Applicants:

Mercedes-benz Group Ag, Stuttgart, DE;

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Andreas Maier, Uhingen, DE;

Peter Maier, Weilheim, DE;

Werner Roessler, Neufahrn, DE;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 15/20 (2006.01); G01R 19/10 (2006.01); G01R 31/00 (2006.01); H02H 7/18 (2006.01);
U.S. Cl.
CPC ...
G01R 31/006 (2013.01); G01R 15/202 (2013.01); G01R 19/10 (2013.01); H02H 7/18 (2013.01);
Abstract

A monitoring device for a high-voltage onboard electrical system of an electrically operable vehicle. The high-voltage onboard electrical system includes a high-voltage energy storage device that is couplable to an electrically positive and an electrically negative charge line. The electrically positive charge line is couplable to a positive electric voltage of a charging device via a charging connection to charge the high-voltage energy storage device and the electrically negative charge line is couplable to a negative electric voltage of the charging device to charge the high voltage energy storage device. The monitoring device has a control unit with a current sensor which is configured to determine the sum of the electric currents of the positive and the negative charge lines. The control unit is configured to separate the positive and the negative charge lines from the high-voltage onboard electrical system upon detecting a fault.


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