Patents by Inventor Gerd Muellerschoen

Gerd Muellerschoen 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 operating an automatic transmission with resistance change in a control system of the automatic transmission
    Patent number: 10267415
    Abstract: A method for operating an automatic transmission with resistance change in a control system of the automatic transmission includes detecting an electrical resistance increase in a control loop for a shift element actuator of the automatic transmission, adjusting an electrical current to the shift element actuator in response to the electrical resistance increase, and shifting the automatic transmission to a gear in which the shift element is in the open operating state. A related control device for an automatic transmission is also provided.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: April 23, 2019
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Kai Leingruber, Gerd Muellerschoen, Matthias Dietlmeier
  • METHOD FOR OPERATING AN AUTOMATIC TRANSMISSION WITH RESISTANCE CHANGE IN A CONTROL SYSTEM OF THE AUTOMATIC TRANSMISSION
    Publication number: 20190107194
    Abstract: A method for operating an automatic transmission with resistance change in a control system of the automatic transmission includes detecting an electrical resistance increase in a control loop for a shift element actuator of the automatic transmission, adjusting an electrical current to the shift element actuator in response to the electrical resistance increase, and shifting the automatic transmission to a gear in which the shift element is in the open operating state. A related control device for an automatic transmission is also provided.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 11, 2019
    Inventors: Kai Leingruber, Gerd Muellerschoen, Matthias Dietlmeier