Patent · US Active

Method and device for identifying an electric machine

US9800197B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Jamshid Shokrollahi · Ludwigsburg, DE
Hamit Hacioglu · Stuttgart, DE
Hanne Beck · Asperg, DE

Key dates

Filing date	Mar 6, 2014
Grant date	Oct 24, 2017
Priority date	—
Expiry date	Jun 18, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH02P23/14
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for generating a challenge-response pair in an electric machine as a basis for an identification or authentication is described, the electric machine having a stator and a rotor, a first alternating voltage between two points of a first defined point pair of the electric machine being applied as a challenge, which causes an induction in the electric machine, a variable dependent on the caused induction being determined as a response. The first alternating voltage has a frequency which is higher than the working frequency of the electric machine.

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