Patent · US Active

Device and method for controlling an electric machine

US10972039B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Eckart Mayer-John · Stuttgart, DE
Florian Malchow · Kanchinakote, IN
Stefan Schaut · Friolzheim, DE

Key dates

Filing date	Dec 20, 2016
Grant date	Apr 6, 2021
Priority date	—
Expiry date	Dec 26, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH02P29/032
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention provides a device (10) and a method for controlling an electric machine (1). The method comprises the steps of: providing (S01) a desired torque value (54) for a torque to be exerted by the electric machine (1); determining (S02) a fault signal (51) which indicates a fault state of the electric machine (1); determining (S03) a current rotor angle value (56) of the electric machine (1); determining (S04) a fault state operating point (62; 62′) on the basis of the desired torque value (54) provided, the determined fault signal (51) and the determined current rotor angle value (56); and shifting or moving (S05) an operating point, at which the electric machine (1) is operated, from a normal state operating point (61) to the determined fault state operating point (62; 62′).

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