Patents by Inventor Brian R. Lovegrove

Brian R. Lovegrove 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).

  • Method to control auto-ignition in an internal combustion engine equipped with variable valve timing control
    Patent number: 7131425
    Abstract: A method and control system to accomplish knock control on a multi-cylinder spark-ignition internal combustion engine equipped variable cam phasing system, comprising monitoring cam position, crankshaft position, and, engine knock signal, determining cam position relative to crankshaft position, and implementing either a global cylinder knock control strategy or an individual cylinder knock control strategy, based upon whether the determined cam position relative to crankshaft position is near a default position, the determined cam position indicates the variable cam phasing system is operating in a transient mode, or, the determined cam position relative to crankshaft position is substantially different from the default position.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: November 7, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Vijay Ramappan, Brian R. Lovegrove, Philip Allen Karau, Sergio Eduardo Garcia