Patents by Inventor Claus Hofmaier

Claus Hofmaier 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).

  • Patent number: 11912130
    Abstract: A hybrid dual clutch transmission includes a first sub-transmission and a first clutch allocated to the first sub-transmission, a second sub-transmission and a second clutch allocated to the second sub-transmission, a separating clutch provided to decouple the hybrid dual clutch transmission from an internal combustion engine. The first clutch has a first outer disc carrier, the second clutch has a second outer disc carrier, and the separating clutch has a further outer disc carrier. The first clutch, the second clutch, and the separating clutch are stacked radially one above the other and are arranged at least substantially axially overlapping. The transmission also includes an electric motor having a rotor, a stator, and a housing. The transmission further includes a drive element permanently non-rotationally connected to the first outer disc carrier of the first clutch to link the electric motor.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: February 27, 2024
    Assignee: MERCEDES-BENZ GROUP AG
    Inventors: Claus Hofmaier, Matthias Maisch, Daniel Doll, Thomas Mattes
  • Publication number: 20210394608
    Abstract: A hybrid dual clutch transmission includes a first sub-transmission and a first clutch allocated to the first sub-transmission, a second sub-transmission and a second clutch allocated to the second sub-transmission, a separating clutch provided to decouple the hybrid dual clutch transmission from an internal combustion engine. The first clutch has a first outer disc carrier, the second clutch has a second outer disc carrier, and the separating clutch has a further outer disc carrier. The first clutch, the second clutch, and the separating clutch are stacked radially one above the other and are arranged at least substantially axially overlapping. The transmission also includes an electric motor having a rotor, a stator, and a housing. The transmission further includes a drive element permanently non-rotationally connected to the first outer disc carrier of the first clutch to link the electric motor.
    Type: Application
    Filed: October 31, 2019
    Publication date: December 23, 2021
    Inventors: Claus HOFMAIER, Matthias MAISCH, Daniel DOLL, Thomas MATTES
  • Publication number: 20140054988
    Abstract: In a hybrid motor vehicle device, comprising an internal combustion engine, a transmission unit connected to the internal combustion engine and including at least one electric motor which is provided for connection to the transmission unit, a starting element connected to the engine, an operating medium pressure system is provided for cooling the electric motor and the starting element, with a cooling duct, which, in at least one operating state, places the starting element and the electric motor in fluid communication with one another, the operating medium pressure system having at least one adjustment unit for varying a flow cross section of the cooling duct for controlling the coolant flow to the electric motor in the at least one operating state.
    Type: Application
    Filed: September 15, 2013
    Publication date: February 27, 2014
    Applicant: DAIMLER AG
    Inventor: Claus Hofmaier