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:
Mar. 21, 2017
Filed:
Apr. 22, 2013
Robert Bosch Gmbh, Stuttgart, DE;
Andrea Deflorio, Marbach am Neckar, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method () for controlling an inverter () using space-vector pulse width modulation, in particular to control an electric machine (), said inverter () being equipped with a plurality of controllable switches (S) and a corresponding plurality of freewheeling diodes (D) and being designed to provide a polyphase electric current (IU, IV, IW) and a polyphase voltage in the form of current space vectors (I*, U*), in particular to supply polyphase electric current (IU, IV, IW) to the electric machine (). In said method, the inverter () is controlled to establish a plurality of different successive switching states (V-V) for the switches (S), and the inverter () is switched to an off-load switching state (V, V) by means of two switching states (V, V), a switch-on time (t-t) of the switching states (V-V) being varied according to a desired load value (m) for the switches (S) and/or for the freewheeling diodes (D), the desired load value (m) being set according to a temperature (Ts, TD) of at least one of the switches (S) and/or one of the freewheeling diodes (D).