Patents by Inventor Steven Fredrick Haller

Steven Fredrick Haller 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).

  • Camshaft and crankshaft position correlation simulation methods and systems
    Patent number: 7757546
    Abstract: A system designed to simulate an internal combustion engine having improper valve timing is provided. The purpose of the simulation system is to calibrate and/or validate a proprietary cam-crank correlation diagnostic algorithm. The simulation system includes a simulator module that communicates with crankshaft and camshaft position sensors and an engine control module. The simulator module includes: a first selector that selects a shift value for shifting a periodic signal; and a modification module that receives a camshaft position signal from the camshaft position sensor and that generates a modified camshaft position signal based on the crankshaft position signal and the shift value.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: July 20, 2010
    Inventors: Michael David Gray, Steven Fredrick Haller
  • CAMSHAFT AND CRANKSHAFT POSITION CORRELATION SIMULATION METHODS AND SYSTEMS
    Publication number: 20090165542
    Abstract: A system designed to simulate an internal combustion engine having improper valve timing is provided. The purpose of the simulation system is to calibrate and/or validate a proprietary cam-crank correlation diagnostic algorithm. The simulation system includes a simulator module that communicates with crankshaft and camshaft position sensors and an engine control module. The simulator module includes: a first selector that selects a shift value for shifting a periodic signal; and a modification module that receives a camshaft position signal from the camshaft position sensor and that generates a modified camshaft position signal based on the crankshaft position signal and the shift value.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Michael David Gray, Steven Fredrick Haller