Patents by Inventor Stefan Lauer

Stefan Lauer 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).

  • Drivetrain for a motor vehicle and method for controlling a drive train
    Publication number: 20040224817
    Abstract: The drivetrain of a motor vehicle with an engine, a crankshaft starter-generator, a hydrodynamic torque converter and an automatic gearbox, comprises an overriding drivetrain controller (20) with a driver and situation recognition (31), a status controller (34) and a torque management (35). The controller carries out the following functions: a start-stop operation, an increase in engine torque, a rolling of the vehicle on a non-engaged drivetrain and a regenerative braking operation.
    Type: Application
    Filed: June 8, 2004
    Publication date: November 11, 2004
    Inventors: Friedrich Graf, Stefan Lauer
  • Method for controlling an automatic transmission and controller suitable for such a method
    Patent number: 6684143
    Abstract: A method for controlling an automatic transmission in a drive train of a motor vehicle having a transmission controller selecting and shifting gears of the transmission includes determining a new gear by reference to gear shift characteristic curves and generating a gear shift instruction as soon as a working point of the drive train exceeds a gear shift characteristic curve. The transmission controller determines a new gear that is expected to be engaged shortly. If the new gear differs from the current gear, an initial phase of the gear shift is carried out and the gear shift is completed as soon as the gear shift instruction has been generated. The initial phase is carried out as soon as the working point drops below a predefined distance from the gear shift characteristic curve.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: January 27, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Friedrich Graf, Tibor Kiss, Martin Lachmayr, Bernd Last, Stefan Lauer, Martin Manz, Stephan Pindl, Tanja Roy
  • Method for controlling an automatic transmission and controller suitable for such a method
    Publication number: 20020142885
    Abstract: A method for controlling an automatic transmission in a drive train of a motor vehicle having a transmission controller selecting and shifting gears of the transmission includes determining a new gear by reference to gear shift characteristic curves and generating a gear shift instruction as soon as a working point of the drive train exceeds a gear shift characteristic curve. The transmission controller determines a new gear that is expected to be engaged shortly. If the new gear differs from the current gear, an initial phase of the gear shift is carried out and the gear shift is completed as soon as the gear shift instruction has been generated. The initial phase is carried out as soon as the working point drops below a predefined distance from the gear shift characteristic curve.
    Type: Application
    Filed: April 3, 2002
    Publication date: October 3, 2002
    Inventors: Friedrich Graf, Tibor Kiss, Martin Lachmayr, Bernd Last, Stefan Lauer, Martin Manz, Stephan Pindl, Tanja Roy