Patents by Inventor Peter John Groblicki

Peter John Groblicki 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).

  • Patent number: 6401528
    Abstract: A process and apparatus are disclosed for estimating evaporative fuel emission losses from a vehicle having a hydrocarbon-fueled engine operating under control of a microprocessor-based powertrain controller, a fuel tank with an evaporated fuel emission control system comprising a fuel vapor adsorbtion means connected to the tank and engine, and a diagnostic system that detects malfunctions in the vapor adsorbtion means. The process and apparatus measures temperature inside the vehicle passenger compartment at successive times when the engine is not running and determines the lowest temperature during partial diurnal and diurnal cooling cycles and uses such temperature along with any malfunction data to estimate evaporated fuel loss during a test period.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: June 11, 2002
    Assignee: General Motors Corporation
    Inventors: David Kay Lambert, Dean A. Drake, Peter John Groblicki
  • Patent number: 5750886
    Abstract: A method for analyzing automotive vehicle emissions detects and logs significant engine events over a test period, and applies the logged events to a model defining the emissions impact of such events to yield a vehicle emissions estimate for the test period. The method includes a diagnostic for diagnosing a deviation in performance of emissions control systems away from an expected performance and for correcting the vehicle emissions estimated to reflect the operating condition of the emissions control systems.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: May 12, 1998
    Assignee: General Motors Corporation
    Inventors: David Kay Lambert, Peter John Groblicki