Patents by Inventor Bjorn E. Soderstrom

Bjorn E. Soderstrom 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).

  • Stochastic pre-ignition prediction and mitigation systems and methods
    Patent number: 9376975
    Abstract: An engine control system for a vehicle includes a timer module, a stochastic pre-ignition (SPI) mitigation module, and a boost control module. The timer module tracks a period of operation of an engine where vacuum within an intake manifold is less than a first predetermined vacuum. The SPI mitigation module generates an SPI signal when the period is greater than a predetermined period and the vacuum is less than a second predetermined vacuum. The second predetermined vacuum is less than the first predetermined vacuum. The boost control module reduces output of a turbocharger in response to the generation of the SPI signal.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: June 28, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: J. Michael Gwidt, Bjorn E. Soderstrom, Kevin M. Luchansky, Craig M. Sawdon, Wajdi B. Hamama
  • STOCHASTIC PRE-IGNITION PREDICTION AND MITIGATION SYSTEMS AND METHODS
    Publication number: 20140163844
    Abstract: An engine control system for a vehicle includes a timer module, a stochastic pre-ignition (SPI) mitigation module, and a boost control module. The timer module tracks a period of operation of an engine where vacuum within an intake manifold is less than a first predetermined vacuum. The SPI mitigation module generates an SPI signal when the period is greater than a predetermined period and the vacuum is less than a second predetermined vacuum. The second predetermined vacuum is less than the first predetermined vacuum. The boost control module reduces output of a turbocharger in response to the generation of the SPI signal.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: J. Michael Gwidt, Bjorn E. Soderstrom, Kevin M. Luchansky, Craig M. Sawdon, Wajdi B. Hamama
  • Deactivation of high pressure pump for noise control
    Patent number: 8342151
    Abstract: An engine control system comprises an engine speed monitoring module and a pump control module. The engine speed monitoring module compares an engine speed and a predetermined threshold. The pump control module deactivates a pressure pump based on said comparison.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: January 1, 2013
    Inventors: Jesse M. Gwidt, Dustin L. Gardner, Michael J. Lucido, Bjorn E. Soderstrom
  • DEACTIVATION OF HIGH PRESSURE PUMP FOR NOISE CONTROL
    Publication number: 20100154739
    Abstract: An engine control system comprises an engine speed monitoring module and a pump control module. The engine speed monitoring module compares an engine speed and a predetermined threshold. The pump control module deactivates a pressure pump based on said comparison.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 24, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Jesse M. Gwidt, Dustin L. Gardner, Michael J. Lucido, Bjorn E. Soderstrom