Patents by Inventor Scott R. Zechiel

Scott R. Zechiel 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).

  • Sensor offset diagnostic in idle and after-run
    Patent number: 11435332
    Abstract: A method for reducing sensor noise in an automobile vehicle NOx sensor offset diagnostic includes: connecting an exhaust system to an engine of an automobile vehicle; sensing a condition of the exhaust system using at least one NOx sensor; identifying when the at least one NOx sensor is at a low noise condition; and running a diagnostic to identify conditions of the at least one NOx sensor. The method further includes selecting one of the low noise condition as the engine in an after-run condition or as the engine in an engine idle condition.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 6, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David P. Quigley, Sarah Funk, Kevin J. McKay, Scott R. Zechiel, Ruggiero Chiariello
  • SENSOR OFFSET DIAGNOSTIC IN IDLE AND AFTER-RUN
    Publication number: 20220099642
    Abstract: A method for reducing sensor noise in an automobile vehicle NOx sensor offset diagnostic includes: connecting an exhaust system to an engine of an automobile vehicle; sensing a condition of the exhaust system using at least one NOx sensor; identifying when the at least one NOx sensor is at a low noise condition; and running a diagnostic to identify conditions of the at least one NOx sensor. The method further includes selecting one of the low noise condition as the engine in an after-run condition or as the engine in an engine idle condition.
    Type: Application
    Filed: September 25, 2020
    Publication date: March 31, 2022
    Inventors: David P. Quigley, Sarah Funk, Kevin J. McKay, Scott R. Zechiel, Ruggiero Chiariello
  • Engine scissor gear assembly
    Patent number: 8245591
    Abstract: A scissor gear assembly may include first and second gears, a friction plate, and a biasing member. The first gear may have a first number (n) of gear teeth extending from a perimeter thereof. The second gear may have a second number (m) of gear teeth extending from a perimeter thereof and may be concentrically mounted relative to the first gear and rotatable relative to the first gear. The second number (m) of gear teeth may be greater than the first number (n) of gear teeth. The friction plate may be rotationally fixed relative to the first gear. The biasing member may have a first end axially fixed relative to the first gear and a second end axially biasing the second gear and the friction plate into engagement with one another.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: August 21, 2012
    Inventors: Joseph Young-Long Chen, Arvo J. Siismets, Scott R. Zechiel, Michael S. Powell
  • ENGINE SCISSOR GEAR ASSEMBLY
    Publication number: 20110030489
    Abstract: A scissor gear assembly may include first and second gears, a friction plate, and a biasing member. The first gear may have a first number (n) of gear teeth extending from a perimeter thereof. The second gear may have a second number (m) of gear teeth extending from a perimeter thereof and may be concentrically mounted relative to the first gear and rotatable relative to the first gear. The second number (m) of gear teeth may be greater than the first number (n) of gear teeth. The friction plate may be rotationally fixed relative to the first gear. The biasing member may have a first end axially fixed relative to the first gear and a second end axially biasing the second gear and the friction plate into engagement with one another.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 10, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Joseph Young-Long Chen, Arvo J. Siismets, Scott R. Zechiel, Michael S. Powell