Patent · US Active

Method and apparatus for operating an electric motor for an electric braking device

US11904825B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Frank Baehrle-Miller · Schenefeld, DE
Hubertus Wienken · Langenbeutingen, DE
Steffen Zechmeister · Bad Wimpfen, DE
Norbert Kearney · Abstatt, DE

Key dates

Filing date	May 24, 2019
Grant date	Feb 20, 2024
Priority date	—
Expiry date	Jan 13, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T2270/406
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method for operating an electric motor for an electric braking device, in particular for an electric parking brake of a vehicle, in particular a motor vehicle, in which the braking device can be put into a first operational state by operation of the electric motor in a first direction of rotation and into a second operational state by operation of the electric motor in a second direction of rotation different from the first direction of rotation, includes determining a quantity which characterizes an internal resistance of the electric motor, comparing the first quantity with a predeterminable first threshold value, controlling the electric motor for a predeterminable first control duration according to the direction of rotation which corresponds to a current operational state of the braking device when the result of the comparison is that the first quantity exceeds the first threshold value.

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