Patents by Inventor Stefan E. Lindner

Stefan E. Lindner 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).

  • Spark control systems and methods for engine torque estimation
    Patent number: 9545909
    Abstract: A spark control module, for an engine speed and an engine load: for a first predetermined period, supplies spark to each cylinder of the engine at a predetermined spark timing set for the engine speed and the engine load. For a second period following the first predetermined period, the spark control module: provides spark to a first one of the cylinders at a first spark timing that is retarded relative to the predetermined spark timing; and supplies spark to all of the other cylinders of the engine at the predetermined spark timing. The storage module selectively stores in memory: a first torque output of the engine measured during the first predetermined period; and a second torque output of the engine measured during the second period.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 17, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Karl T. Kiebel, Stefan E. Lindner, Jeffrey M. Kaiser
  • SPARK CONTROL SYSTEMS AND METHODS FOR ENGINE TORQUE ESTIMATION
    Publication number: 20160090101
    Abstract: A spark control module, for an engine speed and an engine load: for a first predetermined period, supplies spark to each cylinder of the engine at a predetermined spark timing set for the engine speed and the engine load. For a second period following the first predetermined period, the spark control module: provides spark to a first one of the cylinders at a first spark timing that is retarded relative to the predetermined spark timing; and supplies spark to all of the other cylinders of the engine at the predetermined spark timing. The storage module selectively stores in memory: a first torque output of the engine measured during the first predetermined period; and a second torque output of the engine measured during the second period.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 31, 2016
    Inventors: KARL T. KIEBEL, Stefan E. Lindner, Jeffrey M. Kaiser