Patent · US Active

Method for switching an operating state of an electric machine and device for switching an operating state of an electric machine

US10479206B2 · kind B2 · utility

0Cited by

2References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ekard Grossmann · Stuttgart, DE
Marcus Abele · Gerlingen, DE
Torsten Heidrich · Lambach, DE

Key dates

Filing date	Sep 18, 2015
Grant date	Nov 19, 2019
Priority date	—
Expiry date	Sep 18, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/64
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method and to a device for changing from the idle operating state of an electric motor (5) having three phase terminals (5-1, 5-2, 5-3) to a short-circuit operating state. Thereby significant voltage rises are avoided. For this purpose, after receiving (120) a request for changing of the operating state of the electric motor (5) to the short-circuit operating state, three switching elements (1-1, 1-2, 1-3) are closed. Thereby the switching elements (1-1, 1-2, 1-3) are at least partially closed successively and the times of closing the individual switching elements are predetermined as a function of control parameters of the electric motor.

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