Patent · US Active

Control method and switching device

US11095211B2 · kind B2 · utility

1Cited by

1References

6Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Hubert Herrmann · Lehre, DE
Michael Reiter · San Diego, US
Christoph Sudan · Eurasburg, DE

Key dates

Filing date	Apr 22, 2019
Grant date	Aug 17, 2021
Priority date	—
Expiry date	Apr 22, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A control method and a switching device are provided for a separately excited synchronous machine as a drive in a hybrid or electric vehicle. The switching device converts and/or distributes electrical energy within the vehicle, in particular the hybrid or electric vehicle, wherein an asymmetric full bridge is provided, in the bridge branch of which a rotor of an SSM is arranged. Switches are provided in the asymmetric full bridge in order to provide a pulse width modulation corresponding to a desired motor rotational speed and power of the SSM. The device is characterized in that it has a short-circuit branch extending in parallel with the bridge branch of the asymmetric full bridge, by which short-circuit branch the rotor of the SSM is able to be short-circuited.

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