Patents by Inventor Christian Wolrath

Christian Wolrath 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).

  • TRANSMISSION ARRANGEMENT WITH TORQUE VECTORING COMPRISING A COUPLED EPICYCLIC GEAR
    Publication number: 20210285523
    Abstract: A transmission arrangement for an electric vehicle. The transmission arrangement includes a differential configured to connect a first electric machine to a first and second wheel via a respective first and second driveshaft. The transmission further includes a coupled epicyclic gear configured to connect a second electric machine to the first drive shaft via the coupled epicyclic gear. The transmission arrangement includes a coupled epicyclic gear using a single planet gear which meshes with two sun gears of different size, which can be compared to instead using a stepped planet gear including two planet gear portions of different size.
    Type: Application
    Filed: January 29, 2021
    Publication date: September 16, 2021
    Inventors: Christian Wolrath, Erik Sten
  • Transmission arrangement with torque vectoring comprising a coupled epicyclic gear
    Patent number: 11118660
    Abstract: A transmission arrangement for an electric vehicle. The transmission arrangement includes a differential configured to connect a first electric machine to a first and second wheel via a respective first and second driveshaft. The transmission further includes a coupled epicyclic gear configured to connect a second electric machine to the first drive shaft via the coupled epicyclic gear. The transmission arrangement includes a coupled epicyclic gear using a single planet gear which meshes with two sun gears of different size, which can be compared to instead using a stepped planet gear including two planet gear portions of different size.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: September 14, 2021
    Assignee: Volvo Car Corporation
    Inventors: Christian Wolrath, Erik Sten