Patents by Inventor Hans-Dieter Endres

Hans-Dieter Endres 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).

  • METHOD FOR CONTROLLING THE OPERATION OF AN ELECTRIC MACHINE
    Publication number: 20240039440
    Abstract: A method for controlling the operation of an electric machine, particularly an electric machine of a motor vehicle, wherein the electric machine is controlled to generate torque based on alternating current produced by a control device from a direct current supplied by an electrical energy storage. A function current which is determined depending on an actual operating point of the electric machine and which reduces a waviness of the direct current is impressed on the alternating current.
    Type: Application
    Filed: July 28, 2023
    Publication date: February 1, 2024
    Inventors: Felix BÜHLE, Hans-Dieter ENDRES, Felix LESER, Martina JEHLE, Morteza DJEBELI-SINAKI, Mario KAMM
  • Method for controlling operation of an electrical machine
    Patent number: 11888425
    Abstract: Method for controlling operation of an electrical machine, in particular of an electrical machine of a motor vehicle, an operating state of the electrical machine being switched between an active short circuit mode and at least one further operating mode. When switching between the short circuit mode and the at least one further operating mode, a duty factor of an operating signal, in particular of a PWM signal, of the electrical machine is changed in a ramp-shaped manner at least in sections.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: January 30, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Felix Dorband, Alfred Tareilus, Hans-Dieter Endres
  • METHOD FOR CONTROLLING OPERATION OF AN ELECTRICAL MACHINE
    Publication number: 20230083579
    Abstract: Method for controlling operation of an electrical machine, in particular of an electrical machine of a motor vehicle, an operating state of the electrical machine being switched between an active short circuit mode and at least one further operating mode. When switching between the short circuit mode and the at least one further operating mode, a duty factor of an operating signal, in particular of a PWM signal, of the electrical machine is changed in a ramp-shaped manner at least in sections.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 16, 2023
    Inventors: Felix DORBAND, Alfred Tareilus, Hans-Dieter Endres