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:
Nov. 17, 2015
Filed:
Apr. 04, 2012
Miguel Casares, Kornwestheim, DE;
Miguel Casares, Kornwestheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for operating an inverter (), in particular a pulse-controlled inverter, comprising multiple phase systems (), each of which has an outer conductor () and at least one semiconductor component (), and a temperature monitoring device () that has multiple temperature sensors () which sense the temperature of at least one part of at least one of the phase systems (). In said method, a temperature gradient is determined from each of the sensed temperatures, the difference of the determined temperature gradients from each other is ascertained, and if the difference exceeds at least one threshold value, a fault of a cooling device of the inverter () is identified. The invention further relates to an inverter ().