Patents by Inventor RALF KLEISCH

RALF KLEISCH 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).

  • Temperature control system for hybrid powertrain and method of operating a temperature control system
    Patent number: 10167769
    Abstract: A temperature control system for a hybrid powertrain includes a first coolant circuit for temperature control of a first drive device of the hybrid powertrain and a second coolant circuit for temperature control of a second drive device. The second coolant circuit has a first subcircuit, connected for heat transfer to the second drive device, and a second subcircuit, connected at least temporarily for heat transfer to an energy store of the second drive device. The first and second subcircuits are operable separately from one another. A coolant duct is connected to the first drive device for heat transfer and is fluidly connected in a first operating mode with the first coolant circuit in the absence of a fluid communication with the second coolant circuit, and fluidly connected in a second operating mode with the second coolant circuit in the absence of a fluid communication with the first coolant circuit.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: January 1, 2019
    Assignee: Audi AG
    Inventors: Michael Auerbach, Johannes Brunner, Ralf Kleisch, Andreas Oberting
  • TEMPERATURE CONTROL SYSTEM FOR HYBRID POWERTRAIN AND METHOD OF OPERATING A TEMPERATURE CONTROL SYSTEM
    Publication number: 20170260894
    Abstract: A temperature control system for a hybrid powertrain includes a first coolant circuit for temperature control of a first drive device of the hybrid powertrain and a second coolant circuit for temperature control of a second drive device. The second coolant circuit has a first subcircuit, connected for heat transfer to the second drive device, and a second subcircuit, connected at least temporarily for heat transfer to an energy store of the second drive device. The first and second subcircuits are operable separately from one another. A coolant duct is connected to the first drive device for heat transfer and is fluidly connected in a first operating mode with the first coolant circuit in the absence of a fluid communication with the second coolant circuit, and fluidly connected in a second operating mode with the second coolant circuit in the absence of a fluid communication with the first coolant circuit.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 14, 2017
    Applicant: AUDI AG
    Inventors: MICHAEL AUERBACH, JOHANNES BRUNNER, RALF KLEISCH, ANDREAS OBERTING