Patents by Inventor Markus LAEMMERMANN

Markus LAEMMERMANN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Brush for an electric machine, in particular of a motor vehicle, and method for determining wear of such a brush
    Patent number: 11329439
    Abstract: A brush for an electric machine includes at least one brush body having an electrical resistance, which is configured to electrically contact at least one component moving relative to the brush body during operation of the electric machine, and which sustains wear during the operation of the electric machine along a wear direction, as a result of friction contact with the component. The brush includes a detection device configured to determine wear of the brush body, where the detection device comprises a plurality of detection zones which are mutually spaced apart along the wear direction, the respective electrical resistance of which differs from the electrical resistance of the brush body.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: May 10, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Markus Laemmermann, Robert Wagner
  • Brush for an Electric Machine, in Particular of a Motor Vehicle, and Method for Determining Wear of Such a Brush
    Publication number: 20200076145
    Abstract: A brush for an electric machine includes at least one brush body having an electrical resistance, which is configured to electrically contact at least one component moving relative to the brush body during operation of the electric machine, and which sustains wear during the operation of the electric machine along a wear direction, as a result of friction contact with the component. The brush includes a detection device configured to determine wear of the brush body, where the detection device comprises a plurality of detection zones which are mutually spaced apart along the wear direction, the respective electrical resistance of which differs from the electrical resistance of the brush body.
    Type: Application
    Filed: November 7, 2019
    Publication date: March 5, 2020
    Inventors: Markus LAEMMERMANN, Robert WAGNER