Patents by Inventor Stefan KLIE

Stefan KLIE 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).

  • Publication number: 20230202310
    Abstract: A method for optimising the power of an electrified vehicle having at least one electrical energy accumulator, at least one electrical drive and at least one auxiliary unit, the electrical energy accumulator having a maximum discharge power and a continuous discharge power. The power available from the electrical energy accumulator is distributed intelligently in order to make vehicle operation which is acceptable to the driver of the electrified vehicle possible.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 29, 2023
    Applicant: Volkswagen Aktiengesellschaft
    Inventors: Thomas MUELLER, Lennart MATTHIAS, Stefan KLIE
  • Patent number: 10302023
    Abstract: A method for carrying out a gas exchange in a cylinder of an internal combustion engine is provided. The cylinder is connected to a gas line section via a valve. An actuator adjusts a gas pressure in the gas line section. The valve closes at a fixed point in time in a working cycle of the internal combustion engine in case of a constant torque of the internal combustion engine. The method includes the steps of recognizing a torque change request; determining a target value for the gas pressure in the gas line section in dependence on the torque change request; and determining a variable point in time for closing the valve as a result of the torque change request, wherein the variable point in time is shifted in the working cycle relative to the fixed point in time in dependence on the target value of the gas pressure.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 28, 2019
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: René Kleinhans, Stefan Klie, Maiko Garwon, Robert Beckmann
  • Patent number: 9810603
    Abstract: A method for detecting glow ignition of a fuel-air mixture in a combustion chamber of an internal combustion engine having at least one first cylinder and at least one second cylinder, the at least one first and second cylinders being connected by a crankshaft, according to which method partial segment times of the at least one first cylinder are measured. The method is characterized in that partial segment times of the at least one second cylinder are measured and a reference characteristic for the glow ignition is formed by a comparison of partial segment times of the at least one first cylinder with partial segment times of the at least one second cylinder and subsequently a signal is generated for the detection of the glow ignition on the basis of the comparison.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: November 7, 2017
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Samuel Trebesius, Stefan Klie, Andreas Sprysch, Stefanie Thauer, Florian Thauer
  • Publication number: 20170089271
    Abstract: A method for carrying out a gas exchange in a cylinder of an internal combustion engine is provided. The cylinder is connected to a gas line section via a valve. An actuator adjusts a gas pressure in the gas line section. The valve closes at a fixed point in time in a working cycle of the internal combustion engine in case of a constant torque of the internal combustion engine. The method includes the steps of recognizing a torque change request; determining a target value for the gas pressure in the gas line section in dependence on the torque change request; and determining a variable point in time for closing the valve as a result of the torque change request, wherein the variable point in time is shifted in the working cycle relative to the fixed point in time in dependence on the target value of the gas pressure.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 30, 2017
    Inventors: René Kleinhans, Stefan Klie, Maiko Garwon, Robert Beckmann
  • Publication number: 20150308924
    Abstract: A method for detecting glow ignition of a fuel-air mixture in a combustion chamber of an internal combustion engine having at least one first cylinder and at least one second cylinder, said at least one first and second cylinders being connected by a crankshaft, according to which method partial segment times of the at least one first cylinder are measured. The method is characterized in that partial segment times of the at least one second cylinder are measured and a reference characteristic for the glow ignition is formed by a comparison of partial segment times of the at least one first cylinder with partial segment times of the at least one second cylinder and subsequently a signal is generated for the detection of the glow ignition on the basis of the comparison.
    Type: Application
    Filed: October 23, 2013
    Publication date: October 29, 2015
    Inventors: Samuel TREBESIUS, Stefan KLIE, Andreas SPRYSCH, Stefanie THAUER, Florian THAUER