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.
Patent No.:
Date of Patent:
Jun. 12, 2018
Filed:
Apr. 07, 2015
Robert Bosch Gmbh, Stuttgart, DE;
Andreas Gleiter, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for ascertaining an insulation resistance () of a test object () to be examined, wherein a decoupling capacitor () having a first capacity, and a measuring capacitor () having a second capacity are connected in series with the test object () in such a way that the decoupling capacitor () and the measuring capacitor () form a low-pass with the insulation resistance () of the test object (), wherein a predetermined voltage () is applied to the series connection, the measuring capacitor voltage () declining on the measuring capacitor () is ascertained, and, by means of an evaluation unit (), considering the first capacity, the second capacity and the ascertained measuring capacitor voltage (), the insulation resistance () of the test object () is determined. The invention also relates to a device () for ascertaining an insulation resistance () of a test object () to be examined, said device () having a circuit assembly, a measuring unit () and an evaluation unit (). The invention further relates to a high-voltage battery system having a device () according to the invention for ascertaining an insulation resistance ().