Patent · US Active

Detection of bending effects in the case of electric drives

US10151799B2 · kind B2 · utility

0Cited by

0References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Roland Kurz · Linden, DE
Thomas Herges · Eberdingen, DE

Key dates

Filing date	May 7, 2014
Grant date	Dec 11, 2018
Priority date	—
Expiry date	Feb 12, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/343
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and a corresponding system for detecting a malfunction in an electric drive unit. The method comprises the following steps: ascertain (S17) a current flow characteristic (1) of an electric drive unit; detect (S33) a gradient change in the current flow characteristic (1) at a first point in time (t=n); compare (S35, S39) the gradient change with a predefinable gradient change range; establish (S45) a malfunction in the electric drive unit if the gradient change is outside the predefinable gradient change range.

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